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Jahangir CA, Page DB, Broeckx G, Gonzalez CA, Burke C, Murphy C, Reis-Filho JS, Ly A, Harms PW, Gupta RR, Vieth M, Hida AI, Kahila M, Kos Z, van Diest PJ, Verbandt S, Thagaard J, Khiroya R, Abduljabbar K, Acosta Haab G, Acs B, Adams S, Almeida JS, Alvarado-Cabrero I, Azmoudeh-Ardalan F, Badve S, Baharun NB, Bellolio ER, Bheemaraju V, Blenman KR, Botinelly Mendonça Fujimoto L, Burgues O, Chardas A, Cheang MCU, Ciompi F, Cooper LA, Coosemans A, Corredor G, Dantas Portela FL, Deman F, Demaria S, Dudgeon SN, Elghazawy M, Fernandez-Martín C, Fineberg S, Fox SB, Giltnane JM, Gnjatic S, Gonzalez-Ericsson PI, Grigoriadis A, Halama N, Hanna MG, Harbhajanka A, Hart SN, Hartman J, Hewitt S, Horlings HM, Husain Z, Irshad S, Janssen EA, Kataoka TR, Kawaguchi K, Khramtsov AI, Kiraz U, Kirtani P, Kodach LL, Korski K, Akturk G, Scott E, Kovács A, Laenkholm AV, Lang-Schwarz C, Larsimont D, Lennerz JK, Lerousseau M, Li X, Madabhushi A, Maley SK, Manur Narasimhamurthy V, Marks DK, McDonald ES, Mehrotra R, Michiels S, Kharidehal D, Minhas FUAA, Mittal S, Moore DA, Mushtaq S, Nighat H, Papathomas T, Penault-Llorca F, Perera RD, Pinard CJ, Pinto-Cardenas JC, Pruneri G, Pusztai L, Rajpoot NM, Rapoport BL, Rau TT, Ribeiro JM, Rimm D, Vincent-Salomon A, Saltz J, Sayed S, Hytopoulos E, Mahon S, Siziopikou KP, Sotiriou C, Stenzinger A, Sughayer MA, Sur D, Symmans F, Tanaka S, Taxter T, Tejpar S, Teuwen J, Thompson EA, Tramm T, Tran WT, van der Laak J, Verghese GE, Viale G, Wahab N, Walter T, Waumans Y, Wen HY, Yang W, Yuan Y, Bartlett J, Loibl S, Denkert C, Savas P, Loi S, Specht Stovgaard E, Salgado R, Gallagher WM, Rahman A. Image-based multiplex immune profiling of cancer tissues: translational implications. A report of the International Immuno-oncology Biomarker Working Group on Breast Cancer. J Pathol 2024; 262:271-288. [PMID: 38230434 DOI: 10.1002/path.6238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 11/17/2023] [Indexed: 01/18/2024]
Abstract
Recent advances in the field of immuno-oncology have brought transformative changes in the management of cancer patients. The immune profile of tumours has been found to have key value in predicting disease prognosis and treatment response in various cancers. Multiplex immunohistochemistry and immunofluorescence have emerged as potent tools for the simultaneous detection of multiple protein biomarkers in a single tissue section, thereby expanding opportunities for molecular and immune profiling while preserving tissue samples. By establishing the phenotype of individual tumour cells when distributed within a mixed cell population, the identification of clinically relevant biomarkers with high-throughput multiplex immunophenotyping of tumour samples has great potential to guide appropriate treatment choices. Moreover, the emergence of novel multi-marker imaging approaches can now provide unprecedented insights into the tumour microenvironment, including the potential interplay between various cell types. However, there are significant challenges to widespread integration of these technologies in daily research and clinical practice. This review addresses the challenges and potential solutions within a structured framework of action from a regulatory and clinical trial perspective. New developments within the field of immunophenotyping using multiplexed tissue imaging platforms and associated digital pathology are also described, with a specific focus on translational implications across different subtypes of cancer. © 2024 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Chowdhury Arif Jahangir
- UCD School of Biomolecular and Biomedical Science, UCD Conway Institute, University College Dublin, Dublin, Ireland
| | - David B Page
- Earle A Chiles Research Institute, Providence Cancer Institute, Portland, OR, USA
| | - Glenn Broeckx
- Department of Pathology PA2, GZA-ZNA Hospitals, Antwerp, Belgium
- Centre for Oncological Research (CORE), MIPPRO, Faculty of Medicine, Antwerp University, Antwerp, Belgium
| | - Claudia A Gonzalez
- UCD School of Biomolecular and Biomedical Science, UCD Conway Institute, University College Dublin, Dublin, Ireland
| | - Caoimbhe Burke
- UCD School of Biomolecular and Biomedical Science, UCD Conway Institute, University College Dublin, Dublin, Ireland
| | - Clodagh Murphy
- UCD School of Biomolecular and Biomedical Science, UCD Conway Institute, University College Dublin, Dublin, Ireland
| | - Jorge S Reis-Filho
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Amy Ly
- Department of Pathology, Massachusetts General Hospital, Boston, MA, USA
| | - Paul W Harms
- Departments of Pathology and Dermatology, University of Michigan, Ann Arbor, MI, USA
| | - Rajarsi R Gupta
- Department of Biomedical Informatics, Stony Brook University, Stony Brook, NY, USA
| | - Michael Vieth
- Institute of Pathology, Klinikum Bayreuth GmbH, Friedrich-Alexander-University Erlangen-Nuremberg, Bayreuth, Germany
| | - Akira I Hida
- Department of Pathology, Matsuyama Shimin Hospital, Matsuyama, Japan
| | - Mohamed Kahila
- Department of Pathology, Yale School of Medicine, New Haven, CT, USA
| | - Zuzana Kos
- Department of Pathology and Laboratory Medicine, University of British Columbia, BC Cancer, Vancouver, British Columbia, Canada
| | - Paul J van Diest
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
- Johns Hopkins Oncology Center, Baltimore, MD, USA
| | - Sara Verbandt
- Digestive Oncology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Jeppe Thagaard
- Technical University of Denmark, Kgs. Lyngby, Denmark
- Visiopharm A/S, Hørsholm, Denmark
| | - Reena Khiroya
- Department of Cellular Pathology, University College Hospital, London, UK
| | - Khalid Abduljabbar
- Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK
| | | | - Balazs Acs
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden
| | - Sylvia Adams
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
- Department of Medicine, NYU Grossman School of Medicine, Manhattan, NY, USA
| | - Jonas S Almeida
- Division of Cancer Epidemiology and Genetics (DCEG), National Cancer Institute (NCI), Rockville, MD, USA
| | | | | | - Sunil Badve
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Emory University Winship Cancer Institute, Atlanta, GA, USA
| | | | - Enrique R Bellolio
- Departamento de Anatomía Patológica, Facultad de Medicina, Universidad de La Frontera, Temuco, Chile
| | | | - Kim Rm Blenman
- Department of Internal Medicine Section of Medical Oncology and Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA
- Department of Computer Science, Yale School of Engineering and Applied Science, New Haven, CT, USA
| | | | - Octavio Burgues
- Pathology Department, Hospital Cliníco Universitario de Valencia/Incliva, Valencia, Spain
| | - Alexandros Chardas
- Department of Pathobiology & Population Sciences, The Royal Veterinary College, London, UK
| | - Maggie Chon U Cheang
- Head of Integrative Genomics Analysis in Clinical Trials, ICR-CTSU, Division of Clinical Studies, The Institute of Cancer Research, London, UK
| | - Francesco Ciompi
- Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Lee Ad Cooper
- Department of Pathology, Northwestern Feinberg School of Medicine, Chicago, IL, USA
| | - An Coosemans
- Department of Oncology, Laboratory of Tumor Immunology and Immunotherapy, KU Leuven, Leuven, Belgium
| | - Germán Corredor
- Biomedical Engineering Department, Emory University, Atlanta, GA, USA
| | | | - Frederik Deman
- Department of Pathology PA2, GZA-ZNA Hospitals, Antwerp, Belgium
| | - Sandra Demaria
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA
- Department of Pathology, Weill Cornell Medicine, New York, NY, USA
| | - Sarah N Dudgeon
- Computational Biology and Bioinformatics, Yale University, New Haven, CT, USA
| | - Mahmoud Elghazawy
- University of Surrey, Guildford, UK
- Ain Shams University, Cairo, Egypt
| | - Claudio Fernandez-Martín
- Instituto Universitario de Investigación en Tecnología Centrada en el Ser Humano, HUMAN-tech, Universitat Politècnica de València, Valencia, Spain
| | - Susan Fineberg
- Montefiore Medical Center and the Albert Einstein College of Medicine, New York, NY, USA
| | - Stephen B Fox
- Pathology, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | | | - Sacha Gnjatic
- Department of Oncological Sciences, Medicine Hem/Onc, and Pathology, Tisch Cancer Institute - Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Anita Grigoriadis
- Cancer Bioinformatics, Faculty of Life Sciences and Medicine, School of Cancer & Pharmaceutical Sciences, King's College London, London, UK
- The Breast Cancer Now Research Unit, Faculty of Life Sciences and Medicine, School of Cancer and Pharmaceutical Sciences, King's College London, London, UK
| | - Niels Halama
- Department of Translational Immunotherapy, German Cancer Research Center, Heidelberg, Germany
| | | | | | - Steven N Hart
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Johan Hartman
- Department of Clinical Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Stephen Hewitt
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Hugo M Horlings
- Division of Pathology, Netherlands Cancer Institute (NKI), Amsterdam, The Netherlands
| | | | - Sheeba Irshad
- King's College London & Guys & St Thomas NHS Trust, London, UK
| | - Emiel Am Janssen
- Department of Pathology, Stavanger University Hospital, Stavanger, Norway
- Department of Chemistry, Bioscience and Environmental Technology, University of Stavanger, Stavanger, Norway
| | | | - Kosuke Kawaguchi
- Department of Breast Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Andrey I Khramtsov
- Department of Pathology and Laboratory Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - Umay Kiraz
- Department of Pathology, Stavanger University Hospital, Stavanger, Norway
- Department of Chemistry, Bioscience and Environmental Technology, University of Stavanger, Stavanger, Norway
| | - Pawan Kirtani
- Histopathology, Aakash Healthcare Super Speciality Hospital, New Delhi, India
| | - Liudmila L Kodach
- Department of Pathology, Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Konstanty Korski
- Data, Analytics and Imaging, Product Development, F. Hoffmann-La Roche AG, Basel, Switzerland
| | - Guray Akturk
- Translational Molecular Biomarkers, Merck & Co., Inc., Kenilworth, NJ, USA
| | - Ely Scott
- Translational Medicine, Bristol Myers Squibb, Princeton, NJ, USA
| | - Anikó Kovács
- Department of Clinical Pathology, Sahlgrenska University Hospital, Gothenburg, Sweden
- Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anne-Vibeke Laenkholm
- Department of Surgical Pathology, Zealand University Hospital, Roskilde, Denmark
- Department of Surgical Pathology, University of Copenhagen, Copenhagen, Denmark
| | - Corinna Lang-Schwarz
- Institute of Pathology, Klinikum Bayreuth GmbH, Friedrich-Alexander-University Erlangen-Nuremberg, Bayreuth, Germany
| | - Denis Larsimont
- Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Jochen K Lennerz
- Center for Integrated Diagnostics, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA
| | - Marvin Lerousseau
- Centre for Computational Biology (CBIO), Mines Paris, PSL University, Paris, France
- Institut Curie, PSL University, Paris, France
- INSERM U900, Paris, France
| | - Xiaoxian Li
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA, USA
| | - Anant Madabhushi
- Department of Biomedical Engineering, Radiology and Imaging Sciences, Biomedical Informatics, Pathology, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Sai K Maley
- NRG Oncology/NSABP Foundation, Pittsburgh, PA, USA
| | | | - Douglas K Marks
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
| | - Elizabeth S McDonald
- Breast Cancer Translational Research Group, University of Pennsylvania, Philadelphia, PA, USA
| | - Ravi Mehrotra
- Indian Cancer Genomic Atlas, Pune, India
- Centre for Health, Innovation and Policy Foundation, Noida, India
| | - Stefan Michiels
- Office of Biostatistics and Epidemiology, Gustave Roussy, Oncostat U1018, Inserm, University Paris-Saclay, Ligue Contre le Cancer labeled Team, Villejuif, France
| | - Durga Kharidehal
- Department of Pathology, Narayana Medical College and Hospital, Nellore, India
| | - Fayyaz Ul Amir Afsar Minhas
- Tissue Image Analytics Centre, Warwick Cancer Research Centre, PathLAKE Consortium, Department of Computer Science, University of Warwick, Coventry, UK
| | - Shachi Mittal
- Department of Chemical Engineering, Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA
| | - David A Moore
- CRUK Lung Cancer Centre of Excellence, UCL and Cellular Pathology Department, UCLH, London, UK
| | - Shamim Mushtaq
- Department of Biochemistry, Ziauddin University, Karachi, Pakistan
| | - Hussain Nighat
- Pathology and Laboratory Medicine, All India Institute of Medical Sciences, Raipur, India
| | - Thomas Papathomas
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- Department of Clinical Pathology, Drammen Sykehus, Vestre Viken HF, Drammen, Norway
| | - Frederique Penault-Llorca
- Service de Pathologie et Biopathologie, Centre Jean PERRIN, INSERM U1240 Imagerie Moléculaire et Stratégies Théranostiques (IMoST), Université Clermont Auvergne, Clermont-Ferrand, France
| | - Rashindrie D Perera
- School of Electrical, Mechanical and Infrastructure Engineering, University of Melbourne, Melbourne, Victoria, Australia
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Christopher J Pinard
- Radiogenomics Laboratory, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
- Department of Oncology, Lakeshore Animal Health Partners, Mississauga, Ontario, Canada
- Centre for Advancing Responsible and Ethical Artificial Intelligence (CARE-AI), University of Guelph, Guelph, Ontario, Canada
| | | | - Giancarlo Pruneri
- Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
- Faculty of Medicine and Surgery, University of Milan, Milan, Italy
| | - Lajos Pusztai
- Yale Cancer Center, Yale University, New Haven, CT, USA
- Department of Medical Oncology, Yale School of Medicine, Yale University, New Haven, CT, USA
| | | | - Bernardo Leon Rapoport
- The Medical Oncology Centre of Rosebank, Johannesburg, South Africa
- Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Tilman T Rau
- Institute of Pathology, University Hospital Düsseldorf and Heinrich-Heine-University, Düsseldorf, Germany
| | | | - David Rimm
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
- Department of Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Anne Vincent-Salomon
- Department of Diagnostic and Theranostic Medicine, Institut Curie, University Paris-Sciences et Lettres, Paris, France
| | - Joel Saltz
- Department of Biomedical Informatics, Stony Brook Medicine, New York, NY, USA
| | - Shahin Sayed
- Department of Pathology, Aga Khan University, Nairobi, Kenya
| | - Evangelos Hytopoulos
- Department of Pathology, Aga Khan University, Nairobi, Kenya
- iRhythm Technologies Inc., San Francisco, CA, USA
| | - Sarah Mahon
- Mater Misericordiae University Hospital, Dublin, Ireland
| | - Kalliopi P Siziopikou
- Department of Pathology, Section of Breast Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Christos Sotiriou
- Breast Cancer Translational Research Laboratory J.-C. Heuson, Institut Jules Bordet, Hôpital Universitaire de Bruxelles (H.U.B), Université Libre de Bruxelles (ULB), Brussels, Belgium
- Medical Oncology Department, Institut Jules Bordet, Hôpital Universitaire de Bruxelles (H.U.B), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Albrecht Stenzinger
- Institute of Pathology, University Hospital Heidelberg, Centers for Personalized Medicine (ZPM), Heidelberg, Germany
| | | | - Daniel Sur
- Department of Medical Oncology, University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania
| | - Fraser Symmans
- University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | | | - Sabine Tejpar
- Digestive Oncology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Jonas Teuwen
- AI for Oncology Lab, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | - Trine Tramm
- Department of Pathology, Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - William T Tran
- Department of Radiation Oncology, University of Toronto and Sunnybrook Health Sciences Centre, Toronto, Canada
| | - Jeroen van der Laak
- Head of Integrative Genomics Analysis in Clinical Trials, ICR-CTSU, Division of Clinical Studies, The Institute of Cancer Research, London, UK
| | - Gregory E Verghese
- Cancer Bioinformatics, Faculty of Life Sciences and Medicine, School of Cancer & Pharmaceutical Sciences, King's College London, London, UK
- The Breast Cancer Now Research Unit, Faculty of Life Sciences and Medicine, School of Cancer and Pharmaceutical Sciences, King's College London, London, UK
| | - Giuseppe Viale
- Department of Pathology, European Institute of Oncology & University of Milan, Milan, Italy
| | - Noorul Wahab
- Tissue Image Analytics Centre, Department of Computer Science, University of Warwick, Coventry, UK
| | - Thomas Walter
- Centre for Computational Biology (CBIO), Mines Paris, PSL University, Paris, France
- Institut Curie, PSL University, Paris, France
- INSERM U900, Paris, France
| | | | - Hannah Y Wen
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Wentao Yang
- Fudan Medical University Shanghai Cancer Center, Shanghai, PR China
| | - Yinyin Yuan
- Department of Translational Molecular Pathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Sibylle Loibl
- Department of Medicine and Research, German Breast Group, Neu-Isenburg, Germany
| | - Carsten Denkert
- Institut für Pathologie, Philipps-Universität Marburg und Universitätsklinikum Marburg, Marburg, Germany
| | - Peter Savas
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- The Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Sherene Loi
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Victoria, Australia
| | | | - Roberto Salgado
- Department of Pathology PA2, GZA-ZNA Hospitals, Antwerp, Belgium
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - William M Gallagher
- UCD School of Biomolecular and Biomedical Science, UCD Conway Institute, University College Dublin, Dublin, Ireland
| | - Arman Rahman
- UCD School of Medicine, UCD Conway Institute, University College Dublin, Dublin, Ireland
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Kos Z, Nielsen TO, Laenkholm AV. Breast Cancer Histopathology in the Age of Molecular Oncology. Cold Spring Harb Perspect Med 2023:a041647. [PMID: 38151327 DOI: 10.1101/cshperspect.a041647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
For more than a century, microscopic histology has been the cornerstone for cancer diagnosis, and breast carcinoma is no exception. In recent years, clinical biomarkers, gene expression profiles, and other molecular tests have shown increasing utility for identifying the key biological features that guide prognosis and treatment of breast cancer. Indeed, the most common histologic pattern-invasive ductal carcinoma of no special type-provides relatively little guidance to management beyond triggering grading, biomarker testing, and clinical staging. However, many less common histologic patterns can be recognized by trained pathologists, which in many cases can be linked to characteristic biomarker and gene expression patterns, underlying mutations, prognosis, and therapy. Herein we describe more than a dozen such histomorphologic subtypes (including lobular, metaplastic, salivary analog, and several good prognosis special types of breast cancer) in the context of their molecular and clinical features.
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Affiliation(s)
- Zuzana Kos
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
- BC Cancer Vancouver Centre, Vancouver, British Columbia V5Z 4E6, Canada
| | - Torsten O Nielsen
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
- Molecular and Advanced Pathology Core, Vancouver, British Columbia V6H 3Z6, Canada
| | - Anne-Vibeke Laenkholm
- Department of Surgical Pathology, Zealand University Hospital, 4000 Roskilde, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
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Nielsen TO, Leung SCY, Riaz N, Mulligan AM, Kos Z, Bane A, Whelan TJ. Ki67 assessment protocol as an integral biomarker for avoiding radiotherapy in the LUMINA breast cancer trial. Histopathology 2023; 83:903-911. [PMID: 37609778 DOI: 10.1111/his.15032] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 07/21/2023] [Accepted: 07/30/2023] [Indexed: 08/24/2023]
Abstract
AIMS The LUMINA trial demonstrated a very low local recurrence rate in women ≥55 years with low-risk luminal A breast cancer (defined as grade I-II, T1N0, hormone receptor positive, HER2 negative and Ki67 index ≤13.25%) treated with breast-conserving surgery and endocrine therapy (but no other systemic therapy), supporting the safe omission of radiation in these women. Here we describe the protocol for Ki67 assessment, the companion diagnostic used to guide omission of adjuvant radiotherapy. METHODS Ki67 immunohistochemistry was performed on full-face sections at one of three regional labs. Pathologists trained in the International Ki67 in Breast Cancer Working Group (IKWG) method demarcated tumour areas on scanned slides and scored 100 nuclei from each of at least five randomly selected 1-mm fields. For cases with high Ki67 heterogeneity, further virtual cores were selected and scored in order to confidently assign a case as luminal A (≤13.25%) or B (>13.25%). Interlaboratory variability was assessed through an annual quality assurance programme during the study period. RESULTS From the quality assurance programme, the mean Ki67 index across all cases/labs was 13%. The observed intraclass correlation coefficient (ICC) and kappa statistics were ≥0.9 and ≥0.7, respectively, indicating a substantial level of agreement. Median scoring time was 4 min per case. The IKWG-recommended scoring method, performed directly from slides, requiring up to four scored fields, is concordant with the LUMINA scoring method (ICC ≥ 0.9). CONCLUSION Ki67 is a practical, reproducible, and inexpensive biomarker that can identify low-risk luminal A breast cancers as potential candidates for radiation de-escalation. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov number, NCT01791829.
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Affiliation(s)
- Torsten O Nielsen
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Samuel C Y Leung
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Nazia Riaz
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Anna M Mulligan
- University Health Network, Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Zuzana Kos
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Anita Bane
- University Health Network, Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Timothy J Whelan
- Department of Oncology, McMaster University, Hamilton, Ontario, Canada
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Whelan TJ, Smith S, Parpia S, Fyles AW, Bane A, Liu FF, Rakovitch E, Chang L, Stevens C, Bowen J, Provencher S, Théberge V, Mulligan AM, Kos Z, Akra MA, Voduc KD, Hijal T, Dayes IS, Pond G, Wright JR, Nielsen TO, Levine MN. Omitting Radiotherapy after Breast-Conserving Surgery in Luminal A Breast Cancer. N Engl J Med 2023; 389:612-619. [PMID: 37585627 DOI: 10.1056/nejmoa2302344] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
BACKGROUND Adjuvant radiotherapy is prescribed after breast-conserving surgery to reduce the risk of local recurrence. However, radiotherapy is inconvenient, costly, and associated with both short-term and long-term side effects. Clinicopathologic factors alone are of limited use in the identification of women at low risk for local recurrence in whom radiotherapy can be omitted. Molecularly defined intrinsic subtypes of breast cancer can provide additional prognostic information. METHODS We performed a prospective cohort study involving women who were at least 55 years of age, had undergone breast-conserving surgery for T1N0 (tumor size <2 cm and node negative), grade 1 or 2, luminal A-subtype breast cancer (defined as estrogen receptor positivity of ≥1%, progesterone receptor positivity of >20%, negative human epidermal growth factor receptor 2, and Ki67 index of ≤13.25%), and had received adjuvant endocrine therapy. Patients who met the clinical eligibility criteria were registered, and Ki67 immunohistochemical analysis was performed centrally. Patients with a Ki67 index of 13.25% or less were enrolled and did not receive radiotherapy. The primary outcome was local recurrence in the ipsilateral breast. In consultation with radiation oncologists and patients with breast cancer, we determined that if the upper boundary of the two-sided 90% confidence interval for the cumulative incidence at 5 years was less than 5%, this would represent an acceptable risk of local recurrence at 5 years. RESULTS Of 740 registered patients, 500 eligible patients were enrolled. At 5 years after enrollment, recurrence was reported in 2.3% of the patients (90% confidence interval [CI], 1.3 to 3.8; 95% CI, 1.2 to 4.1), a result that met the prespecified boundary. Breast cancer occurred in the contralateral breast in 1.9% of the patients (90% CI, 1.1 to 3.2), and recurrence of any type was observed in 2.7% (90% CI, 1.6 to 4.1). CONCLUSIONS Among women who were at least 55 years of age and had T1N0, grade 1 or 2, luminal A breast cancer that were treated with breast-conserving surgery and endocrine therapy alone, the incidence of local recurrence at 5 years was low with the omission of radiotherapy. (Funded by the Canadian Cancer Society and the Canadian Breast Cancer Foundation; LUMINA ClinicalTrials.gov number, NCT01791829.).
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Affiliation(s)
- Timothy J Whelan
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Sally Smith
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Sameer Parpia
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Anthony W Fyles
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Anita Bane
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Fei-Fei Liu
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Eileen Rakovitch
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Lynn Chang
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Christiaan Stevens
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Julie Bowen
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Sawyna Provencher
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Valerie Théberge
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Anna Marie Mulligan
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Zuzana Kos
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Mohamed A Akra
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - K David Voduc
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Tarek Hijal
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Ian S Dayes
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Gregory Pond
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - James R Wright
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Torsten O Nielsen
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
| | - Mark N Levine
- From the Department of Oncology, McMaster University and the Division of Radiation Oncology, Juravinski Cancer Centre at Hamilton Health Sciences, Hamilton, ON (T.J.W., I.S.D., J.R.W.), the Division of Radiation Oncology, Department of Surgery, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Victoria (S.S.), the Department of Oncology, McMaster University, Hamilton, ON (S. Parpia, G.P., M.N.L.), the Department of Radiation Oncology, University of Toronto, and the Radiation Medicine Program, Princess Margaret Cancer Centre (A.W.F., F.-F.L.), the Department of Pathology, University of Toronto (A.B.), and the Department of Radiation Oncology, University of Toronto and Sunnybrook Odette Cancer Centre (E.R.), Toronto, the Department of Radiation Oncology, University of Ottawa and Ottawa Regional Cancer Centre, Ottawa (L.C.), the Department of Radiation Oncology, University of Toronto and Royal Victoria Regional Health Centre, Barrie, ON (C.S.), the Department of Radiation Oncology, Laurentian University and Radiation Treatment Program, Northeast Cancer Centre, Health Sciences North, Sudbury, ON (J.B.), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (S. Provencher), the Department of Radiation Oncology, Centre Hospitalier Universitaire de Québec-Université Laval, Quebec, QC (V.T.), the Department of Laboratory Medicine and Pathobiology, and the Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto (A.M.M.), the Department of Pathology and Laboratory Medicine, University of British Columbia, and the BC Cancer Agency, Vancouver (Z.K.), the Department of Radiation Oncology, University of Manitoba and Cancer Care Manitoba, Winnipeg (M.A.A.), the Department of Radiation Oncology, University of British Columbia and Radiation Therapy Program, BC Cancer Agency, Vancouver (K.D.V.), the Department of Radiation Oncology, McGill University, Montreal (T.H.), and the Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver (T.O.N.) - all in Canada
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5
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Thagaard J, Broeckx G, Page DB, Jahangir CA, Verbandt S, Kos Z, Gupta R, Khiroya R, Abduljabbar K, Acosta Haab G, Acs B, Akturk G, Almeida JS, Alvarado‐Cabrero I, Amgad M, Azmoudeh‐Ardalan F, Badve S, Baharun NB, Balslev E, Bellolio ER, Bheemaraju V, Blenman KRM, Botinelly Mendonça Fujimoto L, Bouchmaa N, Burgues O, Chardas A, Chon U Cheang M, Ciompi F, Cooper LAD, Coosemans A, Corredor G, Dahl AB, Dantas Portela FL, Deman F, Demaria S, Doré Hansen J, Dudgeon SN, Ebstrup T, Elghazawy M, Fernandez‐Martín C, Fox SB, Gallagher WM, Giltnane JM, Gnjatic S, Gonzalez‐Ericsson PI, Grigoriadis A, Halama N, Hanna MG, Harbhajanka A, Hart SN, Hartman J, Hauberg S, Hewitt S, Hida AI, Horlings HM, Husain Z, Hytopoulos E, Irshad S, Janssen EAM, Kahila M, Kataoka TR, Kawaguchi K, Kharidehal D, Khramtsov AI, Kiraz U, Kirtani P, Kodach LL, Korski K, Kovács A, Laenkholm A, Lang‐Schwarz C, Larsimont D, Lennerz JK, Lerousseau M, Li X, Ly A, Madabhushi A, Maley SK, Manur Narasimhamurthy V, Marks DK, McDonald ES, Mehrotra R, Michiels S, Minhas FUAA, Mittal S, Moore DA, Mushtaq S, Nighat H, Papathomas T, Penault‐Llorca F, Perera RD, Pinard CJ, Pinto‐Cardenas JC, Pruneri G, Pusztai L, Rahman A, Rajpoot NM, Rapoport BL, Rau TT, Reis‐Filho JS, Ribeiro JM, Rimm D, Roslind A, Vincent‐Salomon A, Salto‐Tellez M, Saltz J, Sayed S, Scott E, Siziopikou KP, Sotiriou C, Stenzinger A, Sughayer MA, Sur D, Fineberg S, Symmans F, Tanaka S, Taxter T, Tejpar S, Teuwen J, Thompson EA, Tramm T, Tran WT, van der Laak J, van Diest PJ, Verghese GE, Viale G, Vieth M, Wahab N, Walter T, Waumans Y, Wen HY, Yang W, Yuan Y, Zin RM, Adams S, Bartlett J, Loibl S, Denkert C, Savas P, Loi S, Salgado R, Specht Stovgaard E. Pitfalls in machine learning-based assessment of tumor-infiltrating lymphocytes in breast cancer: A report of the International Immuno-Oncology Biomarker Working Group on Breast Cancer. J Pathol 2023; 260:498-513. [PMID: 37608772 PMCID: PMC10518802 DOI: 10.1002/path.6155] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/07/2023] [Indexed: 08/24/2023]
Abstract
The clinical significance of the tumor-immune interaction in breast cancer is now established, and tumor-infiltrating lymphocytes (TILs) have emerged as predictive and prognostic biomarkers for patients with triple-negative (estrogen receptor, progesterone receptor, and HER2-negative) breast cancer and HER2-positive breast cancer. How computational assessments of TILs might complement manual TIL assessment in trial and daily practices is currently debated. Recent efforts to use machine learning (ML) to automatically evaluate TILs have shown promising results. We review state-of-the-art approaches and identify pitfalls and challenges of automated TIL evaluation by studying the root cause of ML discordances in comparison to manual TIL quantification. We categorize our findings into four main topics: (1) technical slide issues, (2) ML and image analysis aspects, (3) data challenges, and (4) validation issues. The main reason for discordant assessments is the inclusion of false-positive areas or cells identified by performance on certain tissue patterns or design choices in the computational implementation. To aid the adoption of ML for TIL assessment, we provide an in-depth discussion of ML and image analysis, including validation issues that need to be considered before reliable computational reporting of TILs can be incorporated into the trial and routine clinical management of patients with triple-negative breast cancer. © 2023 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Jeppe Thagaard
- Technical University of DenmarkKongens LyngbyDenmark
- Visiopharm A/SHørsholmDenmark
| | - Glenn Broeckx
- Department of PathologyGZA‐ZNA HospitalsAntwerpBelgium
- Centre for Oncological Research (CORE), MIPPRO, Faculty of MedicineAntwerp UniversityAntwerpBelgium
| | - David B Page
- Earle A Chiles Research InstituteProvidence Cancer InstitutePortlandORUSA
| | - Chowdhury Arif Jahangir
- UCD School of Biomolecular and Biomedical Science, UCD Conway InstituteUniversity College DublinDublinIreland
| | - Sara Verbandt
- Digestive Oncology, Department of OncologyKU LeuvenLeuvenBelgium
| | - Zuzana Kos
- Department of Pathology and Laboratory MedicineBC Cancer Vancouver Centre, University of British ColumbiaVancouverBritish ColumbiaCanada
| | - Rajarsi Gupta
- Department of Biomedical InformaticsStony Brook UniversityStony BrookNYUSA
| | - Reena Khiroya
- Department of Cellular PathologyUniversity College Hospital LondonLondonUK
| | | | | | - Balazs Acs
- Department of Oncology and PathologyKarolinska InstitutetStockholmSweden
- Department of Clinical Pathology and Cancer DiagnosticsKarolinska University HospitalStockholmSweden
| | - Guray Akturk
- Translational Molecular Biomarkers, Merck & Co IncRahwayNJUSA
| | - Jonas S Almeida
- Division of Cancer Epidemiology and Genetics (DCEG)National Cancer Institute (NCI)Rockville, MDUSA
| | | | - Mohamed Amgad
- Department of PathologyNorthwestern University Feinberg School of MedicineChicagoILUSA
| | | | - Sunil Badve
- Department of Pathology and Laboratory Medicine, Emory University School of MedicineEmory University Winship Cancer InstituteAtlantaGAUSA
| | | | - Eva Balslev
- Department of PathologyHerlev and Gentofte HospitalHerlevDenmark
| | - Enrique R Bellolio
- Departamento de Anatomía Patológica, Facultad de MedicinaUniversidad de La FronteraTemucoChile
| | | | - Kim RM Blenman
- Department of Internal Medicine Section of Medical Oncology and Yale Cancer CenterYale School of MedicineNew HavenCTUSA
- Department of Computer ScienceYale School of Engineering and Applied ScienceNew HavenCTUSA
| | | | - Najat Bouchmaa
- Institute of Biological Sciences, Faculty of Medical SciencesMohammed VI Polytechnic University (UM6P)Ben‐GuerirMorocco
| | - Octavio Burgues
- Pathology DepartmentHospital Cliníco Universitario de Valencia/InclivaValenciaSpain
| | - Alexandros Chardas
- Department of Pathobiology & Population SciencesThe Royal Veterinary CollegeLondonUK
| | - Maggie Chon U Cheang
- Head of Integrative Genomics Analysis in Clinical Trials, ICR‐CTSU, Division of Clinical StudiesThe Institute of Cancer ResearchLondonUK
| | - Francesco Ciompi
- Radboud University Medical CenterDepartment of PathologyNijmegenThe Netherlands
| | - Lee AD Cooper
- Department of PathologyNorthwestern Feinberg School of MedicineChicagoILUSA
| | - An Coosemans
- Department of Oncology, Laboratory of Tumor Immunology and ImmunotherapyKU LeuvenLeuvenBelgium
| | - Germán Corredor
- Biomedical Engineering DepartmentEmory UniversityAtlantaGAUSA
| | - Anders B Dahl
- Technical University of DenmarkKongens LyngbyDenmark
| | | | | | - Sandra Demaria
- Department of Radiation OncologyWeill Cornell MedicineNew YorkNYUSA
- Department of Pathology and Laboratory MedicineWeill Cornell MedicineNew YorkNYUSA
| | | | - Sarah N Dudgeon
- Conputational Biology and BioinformaticsYale UniversityNew HavenCTUSA
| | | | | | - Claudio Fernandez‐Martín
- Instituto Universitario de Investigación en Tecnología Centrada en el Ser Humano, HUMAN‐techUniversitat Politècnica de ValènciaValenciaSpain
| | - Stephen B Fox
- Pathology, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of OncologyUniversity of MelbourneMelbourneVictoriaAustralia
| | - William M Gallagher
- UCD School of Biomolecular and Biomedical Science, UCD Conway InstituteUniversity College DublinDublinIreland
| | | | - Sacha Gnjatic
- Department of Oncological Sciences, Medicine Hem/Onc, and Pathology, Tisch Cancer Institute – Precision Immunology InstituteIcahn School of Medicine at Mount SinaiNew YorkNYUSA
| | | | - Anita Grigoriadis
- Cancer Bioinformatics, School of Cancer & Pharmaceutical Sciences, Faculty of Life Sciences and MedicineKing's College LondonLondonUK
- The Breast Cancer Now Research Unit, School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and MedicineKing's College LondonLondonUK
| | - Niels Halama
- Department of Translational ImmunotherapyGerman Cancer Research CenterHeidelbergGermany
| | - Matthew G Hanna
- Department of PathologyMemorial Sloan Kettering Cancer CenterNew YorkUSA
| | | | - Steven N Hart
- Department of Laboratory Medicine and PathologyMayo ClinicRochester, MNUSA
| | - Johan Hartman
- Department of Oncology and PathologyKarolinska InstitutetStockholmSweden
- Department of Clinical Pathology and Cancer DiagnosticsKarolinska University HospitalStockholmSweden
| | - Søren Hauberg
- Technical University of DenmarkKongens LyngbyDenmark
| | - Stephen Hewitt
- Laboratory of Pathology, Center for Cancer Research, National Cancer InstituteNational Institutes of HealthBethesdaMDUSA
| | - Akira I Hida
- Department of PathologyMatsuyama Shimin HospitalMatsuyamaJapan
| | - Hugo M Horlings
- Division of PathologyNetherlands Cancer Institute (NKI)AmsterdamThe Netherlands
| | | | | | - Sheeba Irshad
- King's College London & Guy's & St Thomas’ NHS TrustLondonUK
| | - Emiel AM Janssen
- Department of PathologyStavanger University HospitalStavangerNorway
- Department of Chemistry, Bioscience and Environmental TechnologyUniversity of StavangerStavangerNorway
| | | | | | - Kosuke Kawaguchi
- Department of Breast SurgeryKyoto University Graduate School of MedicineKyotoJapan
| | | | - Andrey I Khramtsov
- Department of Pathology and Laboratory MedicineAnn & Robert H. Lurie Children's Hospital of ChicagoChicagoILUSA
| | - Umay Kiraz
- Department of PathologyStavanger University HospitalStavangerNorway
- Department of Chemistry, Bioscience and Environmental TechnologyUniversity of StavangerStavangerNorway
| | - Pawan Kirtani
- Department of HistopathologyAakash Healthcare Super Speciality HospitalNew DelhiIndia
| | - Liudmila L Kodach
- Department of PathologyNetherlands Cancer Institute – Antoni van Leeuwenhoek HospitalAmsterdamThe Netherlands
| | - Konstanty Korski
- Data, Analytics and Imaging, Product DevelopmentF. Hoffmann‐La Roche AGBaselSwitzerland
| | - Anikó Kovács
- Department of Clinical PathologySahlgrenska University HospitalGothenburgSweden
- Institute of Biomedicine, Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Anne‐Vibeke Laenkholm
- Department of Surgical PathologyZealand University HospitalRoskildeDenmark
- Department of Surgical PathologyUniversity of CopenhagenCopenhagenDenmark
| | - Corinna Lang‐Schwarz
- Institute of Pathology, Klinikum Bayreuth GmbHFriedrich‐Alexander‐University Erlangen‐NurembergBayreuthGermany
| | - Denis Larsimont
- Institut Jules BordetUniversité Libre de BruxellesBrusselsBelgium
| | - Jochen K Lennerz
- Center for Integrated DiagnosticsMassachusetts General Hospital/Harvard Medical SchoolBostonMAUSA
| | - Marvin Lerousseau
- Centre for Computational Biology (CBIO)Mines Paris, PSL UniversityParisFrance
- Institut CuriePSL UniversityParisFrance
- INSERMParisFrance
| | - Xiaoxian Li
- Department of Pathology and Laboratory MedicineEmory UniversityAtlantaGAUSA
| | - Amy Ly
- Department of PathologyMassachusetts General HospitalBostonMAUSA
| | - Anant Madabhushi
- Department of Biomedical Engineering, Radiology and Imaging Sciences, Biomedical Informatics, PathologyGeorgia Institute of Technology and Emory UniversityAtlantaGAUSA
| | - Sai K Maley
- NRG Oncology/NSABP FoundationPittsburghPAUSA
| | | | | | - Elizabeth S McDonald
- Breast Cancer Translational Research GroupUniversity of PennsylvaniaPhiladelphiaPAUSA
| | - Ravi Mehrotra
- Indian Cancer Genomic AtlasPuneIndia
- Centre for Health, Innovation and Policy FoundationNoidaIndia
| | - Stefan Michiels
- Office of Biostatistics and Epidemiology, Gustave Roussy, Oncostat U1018, InsermUniversity Paris‐Saclay, Ligue Contre le Cancer labeled TeamVillejuifFrance
| | - Fayyaz ul Amir Afsar Minhas
- Tissue Image Analytics Centre, Warwick Cancer Research Centre, PathLAKE Consortium, Department of Computer ScienceUniversity of WarwickCoventryUK
| | - Shachi Mittal
- Department of Chemical Engineering, Department of Laboratory Medicine and PathologyUniversity of WashingtonSeattle, WAUSA
| | - David A Moore
- CRUK Lung Cancer Centre of Excellence, UCL and Cellular Pathology DepartmentUCLHLondonUK
| | - Shamim Mushtaq
- Department of BiochemistryZiauddin UniversityKarachiPakistan
| | - Hussain Nighat
- Pathology and Laboratory MedicineAll India Institute of Medical sciencesRaipurIndia
| | - Thomas Papathomas
- Institute of Metabolism and Systems ResearchUniversity of BirminghamBirminghamUK
- Department of Clinical PathologyDrammen Sykehus, Vestre Viken HFDrammenNorway
| | - Frederique Penault‐Llorca
- Centre Jean Perrin, Université Clermont Auvergne, INSERM, U1240 Imagerie Moléculaire et Stratégies ThéranostiquesClermont FerrandFrance
| | - Rashindrie D Perera
- School of Electrical, Mechanical and Infrastructure EngineeringUniversity of MelbourneMelbourneVictoriaAustralia
- Division of Cancer ResearchPeter MacCallum Cancer CentreMelbourneVictoriaAustralia
| | - Christopher J Pinard
- Radiogenomics LaboratorySunnybrook Health Sciences CentreTorontoOntarioCanada
- Department of Clinical Studies, Ontario Veterinary CollegeUniversity of GuelphGuelphOntarioCanada
- Department of OncologyLakeshore Animal Health PartnersMississaugaOntarioCanada
- Centre for Advancing Responsible and Ethical Artificial Intelligence (CARE‐AI)University of GuelphGuelphOntarioCanada
| | | | - Giancarlo Pruneri
- Department of Pathology and Laboratory MedicineFondazione IRCCS Istituto Nazionale dei TumoriMilanItaly
- Faculty of Medicine and SurgeryUniversity of MilanMilanItaly
| | - Lajos Pusztai
- Yale Cancer CenterYale UniversityNew HavenCTUSA
- Department of Medical Oncology, Yale School of MedicineYale UniversityNew HavenCTUSA
| | - Arman Rahman
- UCD School of Biomolecular and Biomedical Science, UCD Conway InstituteUniversity College DublinDublinIreland
| | | | - Bernardo Leon Rapoport
- The Medical Oncology Centre of RosebankJohannesburgSouth Africa
- Department of Immunology, Faculty of Health SciencesUniversity of PretoriaPretoriaSouth Africa
| | - Tilman T Rau
- Institute of PathologyUniversity Hospital Düsseldorf and Heinrich‐Heine‐University DüsseldorfDüsseldorfGermany
| | - Jorge S Reis‐Filho
- Department of Pathology and Laboratory MedicineMemorial Sloan Kettering Cancer CenterNew YorkNYUSA
| | - Joana M Ribeiro
- Département de Médecine OncologiqueGustave RoussyVillejuifFrance
| | - David Rimm
- Department of PathologyYale University School of MedicineNew HavenCTUSA
- Department of MedicineYale University School of MedicineNew HavenCTUSA
| | - Anne Roslind
- Department of PathologyHerlev and Gentofte HospitalHerlevDenmark
| | - Anne Vincent‐Salomon
- Department of Diagnostic and Theranostic Medicine, Institut CurieUniversity Paris‐Sciences et LettresParisFrance
| | - Manuel Salto‐Tellez
- Integrated Pathology UnitThe Institute of Cancer ResearchLondonUK
- Precision Medicine CentreQueen's University BelfastBelfastUK
| | - Joel Saltz
- Department of Biomedical InformaticsStony Brook UniversityStony BrookNYUSA
| | - Shahin Sayed
- Department of PathologyAga Khan UniversityNairobiKenya
| | - Ely Scott
- Translational PathologyTranslational Sciences and Diagnostics/Translational Medicine/R&D, Bristol Myers SquibbPrincetonNJUSA
| | - Kalliopi P Siziopikou
- Department of Pathology, Section of Breast PathologyNorthwestern University Feinberg School of MedicineChicagoILUSA
| | - Christos Sotiriou
- Breast Cancer Translational Research Laboratory J.‐C. Heuson, Institut Jules Bordet, Hôpital Universitaire de Bruxelles (HUB)Université Libre de Bruxelles (ULB)BrusselsBelgium
- Medical Oncology Department, Institut Jules Bordet, Hôpital Universitaire de Bruxelles (HUB)Université Libre de Bruxelles (ULB)BrusselsBelgium
| | - Albrecht Stenzinger
- Institute of PathologyUniversity Hospital HeidelbergHeidelbergGermany
- Centers for Personalized Medicine (ZPM)HeidelbergGermany
| | | | - Daniel Sur
- Department of Medical OncologyUniversity of Medicine and Pharmacy “Iuliu Hatieganu”Cluj‐NapocaRomania
| | - Susan Fineberg
- Montefiore Medical CenterBronxNYUSA
- Albert Einstein College of MedicineBronxNYUSA
| | - Fraser Symmans
- University of Texas MD Anderson Cancer CenterHoustonTXUSA
| | | | | | - Sabine Tejpar
- Digestive Oncology, Department of OncologyKU LeuvenLeuvenBelgium
| | - Jonas Teuwen
- AI for Oncology Lab, The Netherlands Cancer InstituteAmsterdamThe Netherlands
| | | | - Trine Tramm
- Department of PathologyAarhus University HospitalAarhusDenmark
- Institute of Clinical MedicineAarhus UniversityAarhusDenmark
| | - William T Tran
- Department of Radiation OncologyUniversity of Toronto and Sunnybrook Health Sciences CentreTorontoOntarioCanada
| | - Jeroen van der Laak
- Department of PathologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Paul J van Diest
- Department of PathologyUniversity Medical Center UtrechtThe Netherlands
- Johns Hopkins Oncology CenterBaltimoreMDUSA
| | - Gregory E Verghese
- Cancer Bioinformatics, School of Cancer & Pharmaceutical Sciences, Faculty of Life Sciences and MedicineKing's College LondonLondonUK
- The Breast Cancer Now Research Unit, School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and MedicineKing's College LondonLondonUK
| | - Giuseppe Viale
- Department of PathologyEuropean Institute of OncologyMilanItaly
- Department of PathologyUniversity of MilanMilanItaly
| | - Michael Vieth
- Institute of Pathology, Klinikum Bayreuth GmbHFriedrich‐Alexander‐University Erlangen‐NurembergBayreuthGermany
| | - Noorul Wahab
- Tissue Image Analytics Centre, Department of Computer ScienceUniversity of WarwickCoventryUK
| | - Thomas Walter
- Centre for Computational Biology (CBIO)Mines Paris, PSL UniversityParisFrance
- Institut CuriePSL UniversityParisFrance
- INSERMParisFrance
| | | | - Hannah Y Wen
- Department of PathologyMemorial Sloan Kettering Cancer CenterNew YorkUSA
| | - Wentao Yang
- Fudan Medical University Shanghai Cancer CenterShanghaiPR China
| | - Yinyin Yuan
- Department of Translational Molecular Pathology, Division of Pathology and Laboratory MedicineThe University of Texas MD Anderson Cancer CenterHoustonTXUSA
| | - Reena Md Zin
- Department of Pathology, Faculty of MedicineUniversiti Kebangsaan MalaysiaKuala LumpurMalaysia
| | - Sylvia Adams
- Perlmutter Cancer CenterNYU Langone HealthNew YorkNYUSA
- Department of MedicineNYU Grossman School of MedicineManhattanNYUSA
| | | | - Sibylle Loibl
- Department of Medicine and ResearchGerman Breast GroupNeu‐IsenburgGermany
| | - Carsten Denkert
- Institut für PathologiePhilipps‐Universität Marburg und Universitätsklinikum MarburgMarburgGermany
| | - Peter Savas
- Division of Cancer ResearchPeter MacCallum Cancer CentreMelbourneVictoriaAustralia
- The Sir Peter MacCallum Department of Medical OncologyUniversity of MelbourneMelbourneVictoriaAustralia
| | - Sherene Loi
- Division of Cancer ResearchPeter MacCallum Cancer CentreMelbourneVictoriaAustralia
- The Sir Peter MacCallum Department of Medical OncologyUniversity of MelbourneMelbourneVictoriaAustralia
| | - Roberto Salgado
- Department of PathologyGZA‐ZNA HospitalsAntwerpBelgium
- Division of Cancer ResearchPeter MacCallum Cancer CentreMelbourneVictoriaAustralia
| | - Elisabeth Specht Stovgaard
- Department of PathologyHerlev and Gentofte HospitalHerlevDenmark
- Department of Clinical MedicineUniversity of CopenhagenCopenhagenDenmark
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6
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Page DB, Broeckx G, Jahangir CA, Verbandt S, Gupta RR, Thagaard J, Khiroya R, Kos Z, Abduljabbar K, Acosta Haab G, Acs B, Akturk G, Almeida JS, Alvarado-Cabrero I, Azmoudeh-Ardalan F, Badve S, Baharun NB, Bellolio ER, Bheemaraju V, Blenman KR, Botinelly Mendonça Fujimoto L, Bouchmaa N, Burgues O, Cheang MCU, Ciompi F, Cooper LA, Coosemans A, Corredor G, Dantas Portela FL, Deman F, Demaria S, Dudgeon SN, Elghazawy M, Ely S, Fernandez-Martín C, Fineberg S, Fox SB, Gallagher WM, Giltnane JM, Gnjatic S, Gonzalez-Ericsson PI, Grigoriadis A, Halama N, Hanna MG, Harbhajanka A, Hardas A, Hart SN, Hartman J, Hewitt S, Hida AI, Horlings HM, Husain Z, Hytopoulos E, Irshad S, Janssen EA, Kahila M, Kataoka TR, Kawaguchi K, Kharidehal D, Khramtsov AI, Kiraz U, Kirtani P, Kodach LL, Korski K, Kovács A, Laenkholm AV, Lang-Schwarz C, Larsimont D, Lennerz JK, Lerousseau M, Li X, Ly A, Madabhushi A, Maley SK, Manur Narasimhamurthy V, Marks DK, McDonald ES, Mehrotra R, Michiels S, Minhas FUAA, Mittal S, Moore DA, Mushtaq S, Nighat H, Papathomas T, Penault-Llorca F, Perera RD, Pinard CJ, Pinto-Cardenas JC, Pruneri G, Pusztai L, Rahman A, Rajpoot NM, Rapoport BL, Rau TT, Reis-Filho JS, Ribeiro JM, Rimm D, Vincent-Salomon A, Salto-Tellez M, Saltz J, Sayed S, Siziopikou KP, Sotiriou C, Stenzinger A, Sughayer MA, Sur D, Symmans F, Tanaka S, Taxter T, Tejpar S, Teuwen J, Thompson EA, Tramm T, Tran WT, van der Laak J, van Diest PJ, Verghese GE, Viale G, Vieth M, Wahab N, Walter T, Waumans Y, Wen HY, Yang W, Yuan Y, Adams S, Bartlett JMS, Loibl S, Denkert C, Savas P, Loi S, Salgado R, Specht Stovgaard E. Spatial analyses of immune cell infiltration in cancer: current methods and future directions: A report of the International Immuno-Oncology Biomarker Working Group on Breast Cancer. J Pathol 2023; 260:514-532. [PMID: 37608771 DOI: 10.1002/path.6165] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 06/19/2023] [Indexed: 08/24/2023]
Abstract
Modern histologic imaging platforms coupled with machine learning methods have provided new opportunities to map the spatial distribution of immune cells in the tumor microenvironment. However, there exists no standardized method for describing or analyzing spatial immune cell data, and most reported spatial analyses are rudimentary. In this review, we provide an overview of two approaches for reporting and analyzing spatial data (raster versus vector-based). We then provide a compendium of spatial immune cell metrics that have been reported in the literature, summarizing prognostic associations in the context of a variety of cancers. We conclude by discussing two well-described clinical biomarkers, the breast cancer stromal tumor infiltrating lymphocytes score and the colon cancer Immunoscore, and describe investigative opportunities to improve clinical utility of these spatial biomarkers. © 2023 The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- David B Page
- Earle A Chiles Research Institute, Providence Cancer Institute, Portland, OR, USA
| | - Glenn Broeckx
- Department of Pathology, GZA-ZNA Hospitals, Antwerp, Belgium
- Centre for Oncological Research (CORE), MIPPRO, Faculty of Medicine, Antwerp University, Antwerp, Belgium
| | - Chowdhury Arif Jahangir
- UCD School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | - Sara Verbandt
- Digestive Oncology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Rajarsi R Gupta
- Department of Biomedical Informatics, Stony Brook University, Stony Brook, NY, USA
| | - Jeppe Thagaard
- Technical University of Denmark, Kongens Lyngby, Denmark
- Visiopharm A/S, Hørsholm, Denmark
| | - Reena Khiroya
- Department of Cellular Pathology, University College Hospital, London, UK
| | - Zuzana Kos
- Department of Pathology and Laboratory Medicine, BC Cancer Vancouver Centre, University of British Columbia, Vancouver, BC, Canada
| | - Khalid Abduljabbar
- Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK
| | | | - Balazs Acs
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
- Clinical Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden
| | - Guray Akturk
- Translational Molecular Biomarkers, Merck & Co Inc, Kenilworth, NJ, USA
| | - Jonas S Almeida
- National Cancer Institute, Division of Cancer Epidemiology and Genetics (DCEG), Rockville, MD, USA
| | | | | | - Sunil Badve
- Pathology and Laboratory Medicine, Emory University School of Medicine, Emory University Winship Cancer Institute, Atlanta, GA, USA
| | | | - Enrique R Bellolio
- Departamento de Anatomía Patológica, Facultad de Medicina, Universidad de La Frontera, Temuco, Chile
| | | | - Kim Rm Blenman
- Internal Medicine Section of Medical Oncology and Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA
- Computer Science, Yale School of Engineering and Applied Science, New Haven, CT, USA
| | | | - Najat Bouchmaa
- Institute of Biological Sciences, Faculty of Medical Sciences, Mohammed VI Polytechnic University (UM6P), Ben-Guerir, Morocco
| | - Octavio Burgues
- Pathology Department, Hospital Cliníco Universitario de Valencia/Incliva, Valencia, Spain
| | - Maggie Chon U Cheang
- Head of Integrative Genomics Analysis in Clinical Trials, ICR-CTSU, Division of Clinical Studies, Institute of Cancer Research, London, UK
| | - Francesco Ciompi
- Radboud University Medical Center, Department of Pathology, Nijmegen, The Netherlands
| | - Lee Ad Cooper
- Department of Pathology, Northwestern Feinberg School of Medicine, Chicago, IL, USA
| | - An Coosemans
- Department of Oncology, Laboratory of Tumor Immunology and Immunotherapy, KU Leuven, Leuven, Belgium
| | - Germán Corredor
- Biomedical Engineering Department, Emory University, Atlanta, GA, USA
| | | | - Frederik Deman
- Department of Pathology, GZA-ZNA Hospitals, Antwerp, Belgium
| | - Sandra Demaria
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA
- Department of Pathology, Weill Cornell Medicine, New York, NY, USA
| | - Sarah N Dudgeon
- Conputational Biology and Bioinformatics, Yale University, New Haven, CT, USA
| | - Mahmoud Elghazawy
- University of Surrey, Guildford, UK
- Ain Shams University, Cairo, Egypt
| | - Scott Ely
- Translational Pathology, Translational Sciences and Diagnostics/Translational Medicine/R&D, Bristol Myers Squibb, Princeton, NJ, USA
| | - Claudio Fernandez-Martín
- Instituto Universitario de Investigación en Tecnología Centrada en el Ser Humano, HUMAN-tech, Universitat Politècnica de València, Valencia, Spain
| | - Susan Fineberg
- Montefiore Medical Center and the Albert Einstein College of Medicine, New York, NY, USA
| | - Stephen B Fox
- Department of Pathology, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - William M Gallagher
- UCD School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | | | - Sacha Gnjatic
- Department of Oncological Sciences, Medicine Hem/Onc, and Pathology, Tisch Cancer Institute - Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Anita Grigoriadis
- Cancer Bioinformatics, School of Cancer & Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
- Breast Cancer Now Research Unit, School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Niels Halama
- Translational Immunotherapy, German Cancer Research Center, Heidelberg, Germany
| | | | | | - Alexandros Hardas
- Pathobiology & Population Sciences, The Royal Veterinary College, London, UK
| | - Steven N Hart
- Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Johan Hartman
- Clinical Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Stephen Hewitt
- Department of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Akira I Hida
- Department of Pathology, Matsuyama Shimin Hospital, Matsuyama, Japan
| | - Hugo M Horlings
- Division of Pathology, Netherlands Cancer Institute (NKI), Amsterdam, The Netherlands
| | | | | | - Sheeba Irshad
- King's College London & Guy's & St Thomas' NHS Trust, London, UK
| | - Emiel Am Janssen
- Department of Pathology, Stavanger University Hospital, Stavanger, Norway
- Department of Chemistry, Bioscience and Environmental Technology, University of Stavanger, Stavanger, Norway
| | - Mohamed Kahila
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | | | - Kosuke Kawaguchi
- Department of Breast Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Durga Kharidehal
- Department of Pathology, Narayana Medical College, Nellore, India
| | - Andrey I Khramtsov
- Pathology and Laboratory Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - Umay Kiraz
- Department of Pathology, Stavanger University Hospital, Stavanger, Norway
- Department of Chemistry, Bioscience and Environmental Technology, University of Stavanger, Stavanger, Norway
| | - Pawan Kirtani
- Department of Histopathology, Aakash Healthcare Super Speciality Hospital, New Delhi, India
| | - Liudmila L Kodach
- Department of Pathology, Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Konstanty Korski
- Data, Analytics and Imaging, Product Development, F.Hoffmann-La Roche AG, Basel, Switzerland
| | - Anikó Kovács
- Department of Clinical Pathology, Sahlgrenska University Hospital, Gothenburg, Sweden
- Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anne-Vibeke Laenkholm
- Surgical Pathology, Zealand University Hospital, Roskilde, Denmark
- Surgical Pathology, University of Copenhagen, Copenhagen, Denmark
| | - Corinna Lang-Schwarz
- Institute of Pathology, Klinikum Bayreuth GmbH, Friedrich-Alexander-University Erlangen-Nuremberg, Bayreuth, Germany
| | - Denis Larsimont
- Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Jochen K Lennerz
- Center for Integrated Diagnostics, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA
| | - Marvin Lerousseau
- Centre for Computational Biology (CBIO), Mines Paris, PSL University, Paris, France
- Institut Curie, PSL University, Paris, France
- INSERM, U900, Paris, France
| | - Xiaoxian Li
- Pathology and Laboratory Medicine, Emory University, Atlanta, GA, USA
| | - Amy Ly
- Department of Pathology, Massachusetts General Hospital, Boston, MA, USA
| | - Anant Madabhushi
- Biomedical Engineering, Radiology and Imaging Sciences, Biomedical Informatics, Pathology, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Sai K Maley
- NRG Oncology/NSABP Foundation, Pittsburgh, PA, USA
| | | | - Douglas K Marks
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
| | - Elizabeth S McDonald
- Breast Cancer Translational Research Group, University of Pennsylvania, Philadelphia, PA, USA
| | - Ravi Mehrotra
- Indian Cancer Genome Atlas, Pune, India
- Centre for Health, Innovation and Policy Foundation, Noida, India
| | - Stefan Michiels
- Office of Biostatistics and Epidemiology, Gustave Roussy, Oncostat U1018, Inserm, University Paris-Saclay, Ligue Contre le Cancer labeled Team, Villejuif, France
| | - Fayyaz Ul Amir Afsar Minhas
- Tissue Image Analytics Centre, Warwick Cancer Research Centre, PathLAKE Consortium, Department of Computer Science, University of Warwick, Coventry, UK
| | - Shachi Mittal
- Department of Chemical Engineering, Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - David A Moore
- CRUK Lung Cancer Centre of Excellence, UCLH, London, UK
| | - Shamim Mushtaq
- Department of Biochemistry, Ziauddin University, Karachi, Pakistan
| | - Hussain Nighat
- Pathology and Laboratory Medicine, All India Institute of Medical Sciences, Raipur, India
| | - Thomas Papathomas
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- Department of Clinical Pathology, Drammen Sykehus, Vestre Viken HF, Drammen, Norway
| | - Frederique Penault-Llorca
- Centre Jean Perrin, INSERM U1240, Imagerie Moléculaire et Stratégies Théranostiques, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Rashindrie D Perera
- School of Electrical, Mechanical and Infrastructure Engineering, University of Melbourne, Melbourne, VIC, Australia
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Christopher J Pinard
- Radiogenomics Laboratory, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
- Department of Oncology, Lakeshore Animal Health Partners, Mississauga, ON, Canada
- Centre for Advancing Responsible and Ethical Artificial Intelligence (CARE-AI), University of Guelph, Guelph, ON, Canada
| | | | - Giancarlo Pruneri
- Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
- Faculty of Medicine and Surgery, University of Milan, Milan, Italy
| | - Lajos Pusztai
- Yale Cancer Center, New Haven, CT, USA
- Department of Medical Oncology, Yale School of Medicine, New Haven, CT, USA
| | - Arman Rahman
- UCD School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | | | - Bernardo Leon Rapoport
- The Medical Oncology Centre of Rosebank, Johannesburg, South Africa
- Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Tilman T Rau
- Institute of Pathology, University Hospital Düsseldorf and Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Jorge S Reis-Filho
- Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Joana M Ribeiro
- Département de Médecine Oncologique, Institute Gustave Roussy, Villejuif, France
| | - David Rimm
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
- Department of Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Anne Vincent-Salomon
- Department of Diagnostic and Theranostic Medicine, Institut Curie, University Paris-Sciences et Lettres, Paris, France
| | - Manuel Salto-Tellez
- Integrated Pathology Unit, Institute of Cancer Research, London, UK
- Precision Medicine Centre, Queen's University Belfast, Belfast, UK
| | - Joel Saltz
- Department of Biomedical Informatics, Stony Brook Medicine, New York, NY, USA
| | - Shahin Sayed
- Department of Pathology, Aga Khan University, Nairobi, Kenya
| | - Kalliopi P Siziopikou
- Department of Pathology, Section of Breast Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Christos Sotiriou
- Breast Cancer Translational Research Laboratory J.-C. Heuson, Institut Jules Bordet, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Brussels, Belgium
- Medical Oncology Department, Institut Jules Bordet, Hôpital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles, Brussels, Belgium
| | - Albrecht Stenzinger
- Institute of Pathology, University Hospital Heidelberg, Centers for Personalized Medicine (ZPM), Heidelberg, Germany
| | | | - Daniel Sur
- Department of Medical Oncology, University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca, Romania
| | - Fraser Symmans
- University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | | | - Sabine Tejpar
- Digestive Oncology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Jonas Teuwen
- AI for Oncology Lab, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | - Trine Tramm
- Pathology, and Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - William T Tran
- Department of Radiation Oncology, University of Toronto and Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Jeroen van der Laak
- Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Paul J van Diest
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
- Johns Hopkins Oncology Center, Baltimore, MD, USA
| | - Gregory E Verghese
- Cancer Bioinformatics, School of Cancer & Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
- Breast Cancer Now Research Unit, School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Giuseppe Viale
- Department of Pathology, European Institute of Oncology & University of Milan, Milan, Italy
| | - Michael Vieth
- Institute of Pathology, Klinikum Bayreuth GmbH, Friedrich-Alexander-University Erlangen-Nuremberg, Bayreuth, Germany
| | - Noorul Wahab
- Tissue Image Analytics Centre, Department of Computer Science, University of Warwick, Coventry, UK
| | - Thomas Walter
- Centre for Computational Biology (CBIO), Mines Paris, PSL University, Paris, France
- Institut Curie, PSL University, Paris, France
- INSERM, U900, Paris, France
| | | | - Hannah Y Wen
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Wentao Yang
- Fudan Medical University Shanghai Cancer Center, Shanghai, PR China
| | - Yinyin Yuan
- Translational Molecular Pathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sylvia Adams
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
- Department of Medicine, NYU Grossman School of Medicine, Manhattan, NY, USA
| | | | - Sibylle Loibl
- Department of Medicine and Research, German Breast Group, Neu-Isenburg, Germany
| | - Carsten Denkert
- Institut für Pathologie, Philipps-Universität Marburg und Universitätsklinikum Marburg, Marburg, Germany
| | - Peter Savas
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Sherene Loi
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Roberto Salgado
- Department of Pathology, GZA-ZNA Hospitals, Antwerp, Belgium
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Elisabeth Specht Stovgaard
- Department of Pathology, Herlev and Gentofte Hospital, Herlev, Denmark
- Faculty of Health and Medical Sciences, Copenhagen University, Copenhagen, Denmark
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7
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Faragalla H, Plotkin A, Barnes P, Lu FI, Kos Z, Mulligan AM, Bane A, Nofech Mozes S. Ki67 in Breast Cancer Assay: An Ad Hoc Testing Recommendation from the Canadian Association of Pathologists Task Force. Curr Oncol 2023; 30:3079-3090. [PMID: 36975446 PMCID: PMC10047249 DOI: 10.3390/curroncol30030233] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/17/2023] [Accepted: 02/27/2023] [Indexed: 03/08/2023] Open
Abstract
Ki67, a marker of cellular proliferation, is commonly assessed in surgical pathology laboratories. In breast cancer, Ki67 is an established prognostic factor with higher levels associated with worse long-term survival. However, Ki67 IHC is considered of limited clinical use in breast cancer management largely due to issues related to standardization and reproducibility of scoring across laboratories. Recently, both the American Food and Drug Administration (FDA) and Health Canada have approved the use of abemaciclib (CDK4/6 inhibitor) for patients with HR+/HER2: high-risk early breast cancers in the adjuvant setting. Health Canada and the FDA have included a Ki67 proliferation index of ≥20% in the drug monograph. The approval was based on the results from monarchE, a phase III clinical trial in early-stage chemotherapy-naïve, HR+, HER2 negative patients at high risk of early recurrence. The study has shown significant improvement in invasive disease-free survival (IDFS) with abemaciclib when combined with adjuvant endocrine therapy at two years. Therefore, there is an urgent need by the breast pathology and medical oncology community in Canada to establish national guideline recommendations for Ki67 testing as a predictive marker in the context of abemaciclib therapy consideration. The following recommendations are based on previous IKWG publications, available guidance from the monarchE trial and expert opinions. The current recommendations are by no means final or comprehensive, and their goal is to focus on its role in the selection of patients for abemaciclib therapy. The aim of this document is to guide Canadian pathologists on how to test and report Ki67 in invasive breast cancer. Testing should be performed upon a medical oncologist’s request only. Testing must be performed on treatment-naïve tumor tissue. Testing on the core biopsy is preferred; however, a well-fixed resection specimen is an acceptable alternative. Adhering to ASCO/CAP fixation guidelines for breast biomarkers is advised. Readout training is strongly recommended. Visual counting methods, other than eyeballing, should be used, with global rather than hot spot assessment preferred. Counting 100 cells in at least four areas of the tumor is recommended. The Ki67 scoring app developed to assist pathologists with scoring Ki67 proposed by the IKWG, available for free download, may be used. Automated image analysis is very promising, and laboratories with such technology are encouraged to use it as an adjunct to visual counting. A score of <5 or >30 is more robust. The task force recommends that the results are best expressed as a continuous variable. The appropriate antibody clone and staining protocols to be used may take time to address. For the time being, the task force recommends having tonsils/+pancreas on-slide control and enrollment in at least one national/international EQA program. Analytical validation remains a pending goal. Until the data become available, using local ki67 protocols is acceptable. The task force recommends participation in upcoming calibration and technical validation initiatives.
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Affiliation(s)
- Hala Faragalla
- Department of Laboratory Medicine, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada
- Correspondence:
| | - Anna Plotkin
- Department of Laboratory Medicine and Molecular Diagnostics Sunnybrook Health Sciences Center, Toronto, ON M4N 3M5, Canada
| | - Penny Barnes
- Department of Pathology and Laboratory Medicine, Nova Scotia Health Authority, Halifax, NS B3H 2E2, Canada
| | - Fang-I Lu
- Department of Laboratory Medicine and Molecular Diagnostics Sunnybrook Health Sciences Center, Toronto, ON M4N 3M5, Canada
| | - Zuzana Kos
- Department of Pathology, BC Cancer, Vancouver, BC V5Z 4E6, Canada
| | - Anna Marie Mulligan
- Department of Laboratory Medicine, University Health Network, Toronto, ON M5T 2S8, Canada
| | - Anita Bane
- Department of Laboratory Medicine, University Health Network, Toronto, ON M5T 2S8, Canada
| | - Sharon Nofech Mozes
- Department of Laboratory Medicine and Molecular Diagnostics Sunnybrook Health Sciences Center, Toronto, ON M4N 3M5, Canada
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Riaz N, Chen B, Bane A, Gao D, Stovgaard E, Kos Z, Leung S, Shenasa E, Parulekar W, Chambers S, Nielson T, Whelan TJ. Abstract P4-02-16: Prognostic and Predictive Capacity of Tumor Infiltrating Lymphocytes in the MA.20 regional radiotherapy trial. Cancer Res 2023. [DOI: 10.1158/1538-7445.sabcs22-p4-02-16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Abstract
Background: The benefit of regional nodal irradiation (RNI) in patients with low burden metastatic axillary disease was established in MA.20 showing that patients randomized to receive adjuvant whole breast irradiation (WBI) plus RNI experienced a significantly better disease free survival (DFS) and distant disease free survival (DDFS) compared to those who received WBI alone and this advantage was maintained in the hormone receptor negative subgroup. Stromal tumor infiltrating lymphocytes (sTILs) have shown prognostic and predictive value in HER2 positive and triple negative breast cancers. To date, clinical importance of immune infiltrates as prognostic and predictive biomarkers in the context of benefit from RNI has not been shown. Methods: 1064 full-face hematoxylin and eosin (H&E) stained sections and formalin fixed paraffin embedded primary tumor blocks assembled into 16 tissue microarrays (TMAs) in quadruplicates linked with clinical data were accessible from the original 1832 patients in the MA.20 trial for this retrospective-prospective translational study conducted according to the REMARK guidelines. sTILs were assessed on scanned images of H&E sections according to the International Immuno-Oncology Working Group method, and on TMAs by CD8 immunohistochemistry (IHC) using a validated assay. Biomarkers were scored by pathologists blinded to the clinical data and analyzed as continuous and categorical variables using prespecified median cutpoints. The median follow-up was 9.5 years. Cox proportional regression modelling was used after adjusting for clinicopathological factors and treatments. Hazard ratios (HR) with 95% confidence intervals (CI) were reported for the primary endpoint of DFS and secondary endpoint of DDFS. Predictive value was assessed by the interaction test between the treatment arm and the biomarkers in the full cohort and an IHC defined non-luminal A subgroup. Results: 1035 cases were evaluable for sTILs on H&E sections. Of these 52.6% (n=544) cases with ≥10% sTILs displayed a significant correlation with age < 50 years, grade III, tumor size >2cm, hormone receptor negative status, and non-luminal A subgroup (p < 0.05). Of the 857 evaluable cases on TMAs, CD8+sTILs (≥16) were observed in 49.8% (n=427) cases and showed a significant association with grade III, ER negativity and non-luminal A status (p < 0.05). For the full cohort, H&E sTILs assessed as a continuous parameter, were not prognostic for DFS (HR 0.993; 95% CI 0.984-1.003; p=0.18) but provided prognostic information for DDFS (HR 0.988; 95% CI 0.977-0.999; p=0.04) in multivariate analyses. H&E sTILs did not show predictive value as a continuous variable. Similarly, using the prespecified cutpoint (≥10%), H&E sTILs were neither prognostic nor predictive. Increasing level of CD8+sTILs was associated with significantly improved DFS (HR 0.99; 95% CI 0.983-0.998; p=0.02) and DDFS (HR 0.98; 95% CI 0.97-0.99; p=0.002) in multivariate analyses. For the full cohort, CD8+sTILs as a continuous variable, showed a significant improvement in DDFS for patients randomized to WBI and RNI (HR 0.979; 95%CI 0.959-0.999; p(interaction) =0.04) compared to WBI alone and a trend (HR 0.977; 95%CI 0.954-1.001; p(interaction) =0.06) for better outcome was observed for the non-luminal A subgroup. CD8+sTILs at the prespecified cutpoint (≥16) were not prognostic or predictive. Conclusions: Pre-treatment tumoral infiltration with stromal lymphocytes provided positive prognostic information for DFS (CD8+sTILs) and DDFS (H&E sTILs and CD8+sTILs) when examined as a continuous variable but failed to do so at prespecified cutpoints. While CD8+sTILs as a continuous variable predicted benefit from RNI, significant prediction results were not seen for prespecified cutpoint or related biomarker H&E sTIL. These results require further validation.
Citation Format: Nazia Riaz, Bingshu Chen, Anita Bane, Dongxia Gao, Elisabeth Stovgaard, Zuzana Kos, Samuel Leung, Elahe Shenasa, Wendy Parulekar, Shelley Chambers, Torsten Nielson, Timothy J. Whelan. Prognostic and Predictive Capacity of Tumor Infiltrating Lymphocytes in the MA.20 regional radiotherapy trial [abstract]. In: Proceedings of the 2022 San Antonio Breast Cancer Symposium; 2022 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2023;83(5 Suppl):Abstract nr P4-02-16.
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Affiliation(s)
- Nazia Riaz
- 1University of British Columbia, British Columbia, Canada
| | | | - Anita Bane
- 3University of Toronto, Toronto, Ontario, Canada
| | - Dongxia Gao
- 4University of British Columbia, British Columbia, Canada
| | | | - Zuzana Kos
- 6University of British Columbia, British Columbia, Canada
| | - Samuel Leung
- 7University of British Columbia, Vancouver, British Columbia, Canada
| | - Elahe Shenasa
- 8University of British Columbia, Vancouver, British Columbia, Canada
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9
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Nielson T, Leung S, Riaz N, Kos Z, Bane A, Whelan TJ. Abstract P6-04-02: Ki67 Assessment Protocol: Companion Diagnostic Biomarker for LUMINA Prospective Cohort Study. Cancer Res 2023. [DOI: 10.1158/1538-7445.sabcs22-p6-04-02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Abstract
Introduction: Luminal A breast cancer is associated with low proliferation, indolent disease biology and limited benefit from chemotherapy. The LUMINA prospective study recently demonstrated a very low 5 year local recurrence rate (2.3%) in women ≥55 years with grade I-II, T1N0 luminal A breast cancer (defined as ER ≥ 1%, PR>20%, HER2 negative and Ki67 index ≤ 13.25%) treated with breast conservation surgery and endocrine therapy without radiation, supporting the safe omission of radiation in this molecularly defined low risk group. Here, we report the protocol for multicentre Ki67 scoring, the embedded integral companion diagnostic employed in LUMINA. Methodology: Ki67 immunohistochemistry was performed on full-face sections at one of the 3 labs and scored by pathologists using an adaptation of the International Ki67 Working Group (IKWG) method. Prior to the start of the study, quality assurance and quality control programs were set up to standardize staining and scoring protocols. All pathologists completed the IKWG training and calibration exercise using a tissue microarray-based series of 18 breast cancers. Inter-laboratory variability was assessed annually during the study period on a set of 9 breast cancer cases with a range of Ki67 scores that purposely over-represented the 13.25% threshold. Stained slides were scanned and images annotated to demarcate invasive carcinoma. Next, 5 random, non-overlapping, 1 mm virtual cores were generated via software and 100 nuclei assessed per core using a keyboard-based counting aid. Ki67 index was derived as the percentage of all counted tumor nuclei that are positively stained. For cases with high Ki67 heterogeneity, additional virtual cores were generated and scored and a 95% confidence interval (CI) of Ki67 index was estimated. The goal was to confidently assign a case as luminal A (≤13.25%) or B (> 13.5%). If the 95% CI crossed 13.25% a recount was performed by an additional pathologist. Results: Quality Assurance Programs: Mean Ki67 index across all cases, labs and years was 13% with high concordance across specimens and score ranges. Observed intra-class correlation coefficients (ICC) were ≥ 0.9, showing near perfect agreement in quantitative Ki67 evaluation. About the 13.25% cutpoint, the observed Kappa statistics were ≥ 0.7 indicating excellent agreement for assignment of luminal A vs. B status. A sub-study was conducted to compare the method of randomly selected virtual fields with the IKWG ‘global weighted score’ method for visual assessment of full-face sections. For this purpose, the 9 quality control cases were reassessed by the same pathologist using the updated IKWG method. Results showed an ICC of 0.96 (0.95% CI: 0.91-0.98) indicating that the Ki67 score generated by the methodology employed in LUMINA trial is highly concordant with the IKWG scoring methodology validated for use on full face sections. Ki67 index summary statistics across LUMINA: Of the 724 eligible cases, 69% (n=500) were assigned as luminal A (median Ki67=7.5%; IQR 5.2-9.8%) and 31% (n=224) as luminal B (median Ki67=19%; IQR 17-23%). Median pathologist scoring time was 4 minutes/case; 45% of cases required scoring of > 5 virtual cores. Per protocol, 39% cases where the initial CI crossed 13.25% were rescored by additional pathologist for final luminal A consensus assignment. Conclusions: Ki67 is a practical biomarker for identifying molecularly defined low-risk luminal A cancers. Our structured quality assurance approach for the trial led to excellent reproducibility and concordance among decentralized labs, supporting applicability of a distributed, inexpensive methodology beyond clinical trial settings and in resource restricted environments.
Citation Format: Torsten Nielson, Samuel Leung, Nazia Riaz, Zuzana Kos, Anita Bane, Timothy J. Whelan. Ki67 Assessment Protocol: Companion Diagnostic Biomarker for LUMINA Prospective Cohort Study [abstract]. In: Proceedings of the 2022 San Antonio Breast Cancer Symposium; 2022 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2023;83(5 Suppl):Abstract nr P6-04-02.
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Affiliation(s)
| | - Samuel Leung
- 2University of British Columbia, Vancouver, BC, Canada, Vancouver, British Columbia, Canada
| | - Nazia Riaz
- 3University of British Columbia, British Columbia, Canada
| | - Zuzana Kos
- 4University of British Columbia, British Columbia, Canada
| | - Anita Bane
- 5University of Toronto, Toronto, Ontario, Canada
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10
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Acs B, Leung SCY, Kidwell KM, Arun I, Augulis R, Badve SS, Bai Y, Bane AL, Bartlett JMS, Bayani J, Bigras G, Blank A, Buikema H, Chang MC, Dietz RL, Dodson A, Fineberg S, Focke CM, Gao D, Gown AM, Gutierrez C, Hartman J, Kos Z, Lænkholm AV, Laurinavicius A, Levenson RM, Mahboubi-Ardakani R, Mastropasqua MG, Nofech-Mozes S, Osborne CK, Penault-Llorca FM, Piper T, Quintayo MA, Rau TT, Reinhard S, Robertson S, Salgado R, Sugie T, van der Vegt B, Viale G, Zabaglo LA, Hayes DF, Dowsett M, Nielsen TO, Rimm DL. Systematically higher Ki67 scores on core biopsy samples compared to corresponding resection specimen in breast cancer: a multi-operator and multi-institutional study. Mod Pathol 2022; 35:1362-1369. [PMID: 35729220 PMCID: PMC9514990 DOI: 10.1038/s41379-022-01104-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 04/11/2022] [Accepted: 05/05/2022] [Indexed: 02/06/2023]
Abstract
Ki67 has potential clinical importance in breast cancer but has yet to see broad acceptance due to inter-laboratory variability. Here we tested an open source and calibrated automated digital image analysis (DIA) platform to: (i) investigate the comparability of Ki67 measurement across corresponding core biopsy and resection specimen cases, and (ii) assess section to section differences in Ki67 scoring. Two sets of 60 previously stained slides containing 30 core-cut biopsy and 30 corresponding resection specimens from 30 estrogen receptor-positive breast cancer patients were sent to 17 participating labs for automated assessment of average Ki67 expression. The blocks were centrally cut and immunohistochemically (IHC) stained for Ki67 (MIB-1 antibody). The QuPath platform was used to evaluate tumoral Ki67 expression. Calibration of the DIA method was performed as in published studies. A guideline for building an automated Ki67 scoring algorithm was sent to participating labs. Very high correlation and no systematic error (p = 0.08) was found between consecutive Ki67 IHC sections. Ki67 scores were higher for core biopsy slides compared to paired whole sections from resections (p ≤ 0.001; median difference: 5.31%). The systematic discrepancy between core biopsy and corresponding whole sections was likely due to pre-analytical factors (tissue handling, fixation). Therefore, Ki67 IHC should be tested on core biopsy samples to best reflect the biological status of the tumor.
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Affiliation(s)
- Balazs Acs
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA.
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden.
- Department of Clinical Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden.
| | | | - Kelley M Kidwell
- Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Indu Arun
- Tata Medical Center, Kolkata, West Bengal, India
| | - Renaldas Augulis
- Vilnius University Faculty of Medicine and National Center of Pathology, Vilnius University Hospital Santaros Clinics, Vilnius, Lithuania
| | - Sunil S Badve
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Yalai Bai
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Anita L Bane
- Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada
| | - John M S Bartlett
- Ontario Institute for Cancer Research, Toronto, ON, Canada
- Edinburgh Cancer Research Centre, Western General Hospital, Edinburgh, United Kingdom
| | - Jane Bayani
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - Gilbert Bigras
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
| | - Annika Blank
- Institute of Pathology, University of Bern, Bern, Switzerland
- Institute of Pathology, Triemli Hospital Zurich, Zurich, Switzerland
| | - Henk Buikema
- University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Martin C Chang
- Department of Pathology & Laboratory Medicine, University of Vermont Medical Center, Burlington, VT, USA
| | - Robin L Dietz
- Department of Pathology, Olive View-UCLA Medical Center, Los Angeles, CA, USA
| | - Andrew Dodson
- UK NEQAS for Immunocytochemistry and In-Situ Hybridisation, London, United Kingdom
| | - Susan Fineberg
- Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY, USA
| | - Cornelia M Focke
- Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany
| | - Dongxia Gao
- University of British Columbia, Vancouver, BC, Canada
| | | | - Carolina Gutierrez
- Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Johan Hartman
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden
| | - Zuzana Kos
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Anne-Vibeke Lænkholm
- Department of Surgical Pathology, Zealand University Hospital, Roskilde, Denmark
| | - Arvydas Laurinavicius
- Vilnius University Faculty of Medicine and National Center of Pathology, Vilnius University Hospital Santaros Clinics, Vilnius, Lithuania
| | - Richard M Levenson
- Department of Medical Pathology and Laboratory Medicine, University of California Davis Medical Center, Sacramento, CA, USA
| | - Rustin Mahboubi-Ardakani
- Department of Medical Pathology and Laboratory Medicine, University of California Davis Medical Center, Sacramento, CA, USA
| | | | - Sharon Nofech-Mozes
- University of Toronto Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - C Kent Osborne
- Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Frédérique M Penault-Llorca
- Imagerie Moléculaire et Stratégies Théranostiques, UMR1240, Université Clermont Auvergne, INSERM, Clermont-Ferrand, France
- Service de Pathologie, Centre Jean PERRIN, Clermont-Ferrand, France
| | - Tammy Piper
- Edinburgh Cancer Research Centre, Western General Hospital, Edinburgh, United Kingdom
| | | | - Tilman T Rau
- Institute of Pathology, University of Bern, Bern, Switzerland
- Institute of Pathology, Heinrich Heine University and University Hospital of Duesseldorf, Duesseldorf, Germany
| | - Stefan Reinhard
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Stephanie Robertson
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden
| | - Roberto Salgado
- Department of Pathology, GZA-ZNA, Antwerp, Belgium
- Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, VIC, Australia
| | | | - Bert van der Vegt
- University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Giuseppe Viale
- European Institute of Oncology, Milan, Italy
- European Institute of Oncology IRCCS, and University of Milan, Milan, Italy
| | - Lila A Zabaglo
- The Institute of Cancer Research, London, United Kingdom
| | - Daniel F Hayes
- University of Michigan Rogel Cancer Center, Ann Arbor, MI, USA
| | - Mitch Dowsett
- The Institute of Cancer Research, London, United Kingdom
| | | | - David L Rimm
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA.
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Klaric KA, Riaz N, Asleh K, Wang XQ, Atalla T, Strickland S, Nielsen TO, Kos Z. SOX10 is a highly specific biomarker of basal-like breast cancer. Histopathology 2021; 80:589-597. [PMID: 34725848 DOI: 10.1111/his.14592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 10/07/2021] [Accepted: 10/31/2021] [Indexed: 11/29/2022]
Abstract
AIMS Basal-like breast cancer is an aggressive molecular subtype associated with younger age and early relapse. Most cases lack expression of estrogen receptor (ER), progesterone receptor, and human epidermal growth factor receptor 2, limiting targeted therapeutic options. Basal-like breast cancer is defined by expression of genes in the outer/basally-located epithelial layer of mammary glands including those encoding cytokeratins 5 and 14, and epidermal growth factor receptor (EGFR). SOX10, a readily available immunohistochemical stain, is expressed in a subset of breast cancers, particularly triple-negative carcinomas. In this study, we sought to (i) assess the association between SOX10 expression and intrinsic molecular subtypes as defined by PAM50 gene expression and (ii) compare the performance of SOX10 to other surrogate markers of basal-like subtype, including CK5, EGFR, nestin and INPP4b. METHODS AND RESULTS SOX10 immunostaining was performed on tissue microarrays constructed from a contemporary series enriched for ER negative and weakly positive cancers, which had also undergone PAM50 gene profiling. A total of 211 cases were informative for both SOX10 immunohistochemistry (IHC) and PAM50 subtype, including 103 basal-like. Staining for SOX10 was positive in 73/103 basal-like cancers and only 2/108 other subtypes (p<0.001), resulting in a sensitivity of 70.9% and a specificity of 98.1%. SOX10 was more specific than the other tested basal-markers and the results were independent of estrogen receptor status. CONCLUSIONS SOX10 is a moderately sensitive, but highly specific IHC biomarker for the basal-like intrinsic subtype of breast cancer, which unlike other commonly used IHC biomarkers, is independent of hormone receptor status.
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Affiliation(s)
- Kristina-Ana Klaric
- Department of Pathology and Laboratory Medicine, Faculty of Medicine, University of Ottawa, ON, Canada
| | - Nazia Riaz
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,Genetic Pathology Evaluation Centre, Vancouver, BC, Canada.,Centre for Regenerative Medicine and Stem Cell Research, Aga Khan University, Pakistan
| | - Karama Asleh
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,Genetic Pathology Evaluation Centre, Vancouver, BC, Canada
| | - Xiu Qing Wang
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,Genetic Pathology Evaluation Centre, Vancouver, BC, Canada
| | - Tadros Atalla
- Department of Pathology and Laboratory Medicine, Faculty of Medicine, University of Ottawa, ON, Canada
| | - Sarah Strickland
- Department of Pathology and Laboratory Medicine, Faculty of Medicine, University of Ottawa, ON, Canada
| | - Torsten O Nielsen
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,Genetic Pathology Evaluation Centre, Vancouver, BC, Canada
| | - Zuzana Kos
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,Department of Pathology, BC Cancer, Vancouver, BC, Canada
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12
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Zhu MMT, Burugu S, Gao D, Yu J, Kos Z, Leung S, Horst BA, Nielsen TO. Evaluation of glucocorticoid-induced TNF receptor (GITR) expression in breast cancer and across multiple tumor types. Mod Pathol 2020; 33:1753-1763. [PMID: 32350416 DOI: 10.1038/s41379-020-0550-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 04/04/2020] [Accepted: 04/05/2020] [Indexed: 12/18/2022]
Abstract
Glucocorticoid-induced TNF receptor (GITR) is an emerging immunotherapy target that is expressed at high levels on regulatory T cells. Agonistic anti-GITR antibodies have anti-tumor activity in cancer mouse models, and recent phase 1 trials have demonstrated their safe pharmacological profile. However, there is limited knowledge on the relationship between GITR expression and the tumor microenvironment. GITR protein expression was assayed by immunohistochemistry on 3992 breast cancer surgical excision specimens assembled into tissue microarrays and scored visually by a pathologist for GITR expression on tumor-infiltrating lymphocytes and on carcinoma cells. GITR expression by the malignant cells was further surveyed in gastrointestinal stromal tumor (N = 713), lung carcinoma (N = 705), pancreatic cancer (N = 486), ovarian cancer (N = 445), bladder cancer (N = 88), prostate cancer (N = 88), testicular cancer (N = 76), melanoma (N = 75), renal cell carcinoma (N = 68), epithelioid sarcoma (N = 53), and neuroendocrine tumors (N = 41). In breast cancer, GITR expression on tumor-infiltrating lymphocytes (12.4%) correlated with other immune response biomarkers (PD-L1+ on tumor cells, and PD-1+, LAG-3+, TIM-3+ lymphocytes; p < 0.001), and T-cell markers (CD8+, FOXP3+; p < 0.001). GITR+ carcinoma cells were observed in 6.0% of breast cancer cases and correlated with worse relapse-free survival (p = 0.015). Among the additional tumor types examined, cancers with GITR+ malignant cells included bladder cancer (5.7%), primary (but not metastatic) melanoma (4.5%), and ovarian cancer (3.2%); no expression was identified among examined sarcomas. To our knowledge, this is the first immunohistochemistry study to report the frequency and pattern of GITR expression in a large breast cancer cohort, or to report membranous GITR expression on malignant cells. The co-infiltration of GITR with other immune biomarkers and T-cell markers supports a potential role for anti-GITR agents in combination immunotherapies. In addition, GITR expression on carcinoma cells could imply the existence of a novel cancer immune evasion strategy worthy of further investigation.
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Affiliation(s)
- Mayanne M T Zhu
- Genetic Pathology Evaluation Centre, University of British Columbia, Vancouver, BC, Canada
| | - Samantha Burugu
- Genetic Pathology Evaluation Centre, University of British Columbia, Vancouver, BC, Canada
| | - Dongxia Gao
- Genetic Pathology Evaluation Centre, University of British Columbia, Vancouver, BC, Canada
| | - Jamie Yu
- Department of Pathology and Laboratory Medicine, Vancouver General Hospital, Vancouver, BC, Canada
| | - Zuzana Kos
- Department of Pathology, BC Cancer, Vancouver, BC, Canada
| | - Samuel Leung
- Genetic Pathology Evaluation Centre, University of British Columbia, Vancouver, BC, Canada
| | - Basil A Horst
- Department of Pathology and Laboratory Medicine, Vancouver General Hospital, Vancouver, BC, Canada
| | - Torsten O Nielsen
- Genetic Pathology Evaluation Centre, University of British Columbia, Vancouver, BC, Canada. .,Department of Pathology and Laboratory Medicine, Vancouver General Hospital, Vancouver, BC, Canada.
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13
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Kim RS, Song N, Gavin PG, Salgado R, Bandos H, Kos Z, Floris G, Eynden GGGMVD, Badve S, Demaria S, Rastogi P, Fehrenbacher L, Mamounas EP, Swain SM, Wickerham DL, Costantino JP, Paik S, Wolmark N, Geyer CE, Lucas PC, Pogue-Geile KL. Stromal Tumor-infiltrating Lymphocytes in NRG Oncology/NSABP B-31 Adjuvant Trial for Early-Stage HER2-Positive Breast Cancer. J Natl Cancer Inst 2020; 111:867-871. [PMID: 30888406 DOI: 10.1093/jnci/djz032] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 01/09/2019] [Accepted: 03/06/2019] [Indexed: 12/13/2022] Open
Abstract
We retrospectively assessed association of stromal tumor-infiltrating lymphocytes (sTILs) with clinical outcomes and molecular variables reportedly predictive of trastuzumab-benefit in National Surgical Adjuvant Breast and Bowel Project B-31 (N = 2130). sTILs were assessed in 1581 eligible B-31 cases utilizing all available hematoxylin and eosin slides. Mean concordance between main reviewer and six other pathologists was 90.8% in 100 cases. Cox regressions were used to calculate hazard ratios (HRs). In chemotherapy and trastuzumab added to chemotherapy arms, increases in sTILs, as a semicontinuous variable (combined arms HR = 0.42, 95% confidence interval = 0.27 to 0.64, two-sided P < .001) or as lymphocyte-predominant breast cancer with more than 50% sTILs (combined arms HR = 0.65, 95% confidence interval = 0.49 to 0.86, two-sided P = .003) were statistically significantly associated with improved disease-free survival. There was no association of sTILs with trastuzumab benefit. However, higher sTILs were statistically significantly associated with higher trastuzumab benefit groups by 8-gene prediction model (two-sided P < .001). Neither PIK3CA mutations nor Fc-gamma-receptor polymorphisms were associated with sTILs. sTILs may have utility as a prognostic biomarker identifying HER2-positive early breast cancer at low recurrence risk.
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Affiliation(s)
- Rim S Kim
- See the Notes section for the full list of authors' affiliations
| | - Nan Song
- See the Notes section for the full list of authors' affiliations
| | - Patrick G Gavin
- See the Notes section for the full list of authors' affiliations
| | - Roberto Salgado
- See the Notes section for the full list of authors' affiliations
| | - Hanna Bandos
- See the Notes section for the full list of authors' affiliations
| | - Zuzana Kos
- See the Notes section for the full list of authors' affiliations
| | - Giuseppe Floris
- See the Notes section for the full list of authors' affiliations
| | | | - Sunil Badve
- See the Notes section for the full list of authors' affiliations
| | - Sandra Demaria
- See the Notes section for the full list of authors' affiliations
| | - Priya Rastogi
- See the Notes section for the full list of authors' affiliations
| | | | | | - Sandra M Swain
- See the Notes section for the full list of authors' affiliations
| | | | | | - Soonmyung Paik
- See the Notes section for the full list of authors' affiliations
| | - Norman Wolmark
- See the Notes section for the full list of authors' affiliations
| | - Charles E Geyer
- See the Notes section for the full list of authors' affiliations
| | - Peter C Lucas
- See the Notes section for the full list of authors' affiliations
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14
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Kos Z, Roblin E, Kim RS, Michiels S, Gallas BD, Chen W, van de Vijver KK, Goel S, Adams S, Demaria S, Viale G, Nielsen TO, Badve SS, Symmans WF, Sotiriou C, Rimm DL, Hewitt S, Denkert C, Loibl S, Luen SJ, Bartlett JMS, Savas P, Pruneri G, Dillon DA, Cheang MCU, Tutt A, Hall JA, Kok M, Horlings HM, Madabhushi A, van der Laak J, Ciompi F, Laenkholm AV, Bellolio E, Gruosso T, Fox SB, Araya JC, Floris G, Hudeček J, Voorwerk L, Beck AH, Kerner J, Larsimont D, Declercq S, Van den Eynden G, Pusztai L, Ehinger A, Yang W, AbdulJabbar K, Yuan Y, Singh R, Hiley C, Bakir MA, Lazar AJ, Naber S, Wienert S, Castillo M, Curigliano G, Dieci MV, André F, Swanton C, Reis-Filho J, Sparano J, Balslev E, Chen IC, Stovgaard EIS, Pogue-Geile K, Blenman KRM, Penault-Llorca F, Schnitt S, Lakhani SR, Vincent-Salomon A, Rojo F, Braybrooke JP, Hanna MG, Soler-Monsó MT, Bethmann D, Castaneda CA, Willard-Gallo K, Sharma A, Lien HC, Fineberg S, Thagaard J, Comerma L, Gonzalez-Ericsson P, Brogi E, Loi S, Saltz J, Klaushen F, Cooper L, Amgad M, Moore DA, Salgado R. Pitfalls in assessing stromal tumor infiltrating lymphocytes (sTILs) in breast cancer. NPJ Breast Cancer 2020; 6:17. [PMID: 32411819 PMCID: PMC7217863 DOI: 10.1038/s41523-020-0156-0] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 03/02/2020] [Indexed: 02/08/2023] Open
Abstract
Stromal tumor-infiltrating lymphocytes (sTILs) are important prognostic and predictive biomarkers in triple-negative (TNBC) and HER2-positive breast cancer. Incorporating sTILs into clinical practice necessitates reproducible assessment. Previously developed standardized scoring guidelines have been widely embraced by the clinical and research communities. We evaluated sources of variability in sTIL assessment by pathologists in three previous sTIL ring studies. We identify common challenges and evaluate impact of discrepancies on outcome estimates in early TNBC using a newly-developed prognostic tool. Discordant sTIL assessment is driven by heterogeneity in lymphocyte distribution. Additional factors include: technical slide-related issues; scoring outside the tumor boundary; tumors with minimal assessable stroma; including lymphocytes associated with other structures; and including other inflammatory cells. Small variations in sTIL assessment modestly alter risk estimation in early TNBC but have the potential to affect treatment selection if cutpoints are employed. Scoring and averaging multiple areas, as well as use of reference images, improve consistency of sTIL evaluation. Moreover, to assist in avoiding the pitfalls identified in this analysis, we developed an educational resource available at www.tilsinbreastcancer.org/pitfalls.
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Affiliation(s)
- Zuzana Kos
- Department of Pathology, BC Cancer - Vancouver, Vancouver, BC Canada
| | - Elvire Roblin
- Department of Biostatistics and Epidemiology, Gustave Roussy, University Paris-Saclay, Villejuif, France
- Oncostat U1018, Inserm, University Paris-Saclay, labeled Ligue Contre le Cancer, Villejuif, France
| | - Rim S. Kim
- National Surgical Adjuvant Breast and Bowel Project (NSABP)/NRG Oncology, Pittsburgh, PA USA
| | - Stefan Michiels
- Department of Biostatistics and Epidemiology, Gustave Roussy, University Paris-Saclay, Villejuif, France
- Oncostat U1018, Inserm, University Paris-Saclay, labeled Ligue Contre le Cancer, Villejuif, France
| | - Brandon D. Gallas
- Division of Imaging, Diagnostics, and Software Reliability (DIDSR); Office of Science and Engineering Laboratories (OSEL); Center for Devices and Radiological Health (CDRH), US Food and Drug Administration (US FDA), Silver Spring, MD USA
| | - Weijie Chen
- Division of Imaging, Diagnostics, and Software Reliability (DIDSR); Office of Science and Engineering Laboratories (OSEL); Center for Devices and Radiological Health (CDRH), US Food and Drug Administration (US FDA), Silver Spring, MD USA
| | - Koen K. van de Vijver
- Department of Pathology, University Hospital Antwerp, Antwerp, Belgium
- Department of Pathology, Ghent University Hospital, Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Shom Goel
- The Sir Peter MacCallum Cancer Centre, Melbourne, VIC Australia
- Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria Australia
| | - Sylvia Adams
- Perlmutter Cancer Center, New York University Medical School, New York, NY USA
| | - Sandra Demaria
- Departments of Radiation Oncology and Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY USA
| | - Giuseppe Viale
- Department of Pathology, Istituto Europeo di Oncologia, University of Milan, Milan, Italy
| | - Torsten O. Nielsen
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
| | - Sunil S. Badve
- Department of Pathology and Laboratory Medicine, Indiana University, Indianapolis, USA
| | - W. Fraser Symmans
- Department of Pathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX USA
| | - Christos Sotiriou
- Department of Medical Oncology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - David L. Rimm
- Department of Pathology, Yale School of Medicine, New Haven, CT USA
| | - Stephen Hewitt
- Laboratory of Pathology, National Cancer Institute, NIH, Bethesda, MD USA
| | - Carsten Denkert
- Institute of Pathology, Universitätsklinikum Gießen und Marburg GmbH, Standort Marburg and Philipps-Universität Marburg, Marburg, Germany
| | | | - Stephen J. Luen
- Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria Australia
- Division of Research and Cancer Medicine, Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, VIC Australia
| | - John M. S. Bartlett
- Ontario Institute for Cancer Research, Toronto, ON Canada
- University of Edinburgh Cancer Research Centre, Edinburgh, UK
| | - Peter Savas
- Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria Australia
- Division of Research and Cancer Medicine, Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, VIC Australia
| | - Giancarlo Pruneri
- Department of Pathology, IRCCS Fondazione Instituto Nazionale Tumori and University of Milan, School of Medicine, Milan, Italy
| | - Deborah A. Dillon
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA USA
- Department of Pathology, Dana Farber Cancer Institute, Boston, MA USA
| | - Maggie Chon U. Cheang
- Institute of Cancer Research Clinical Trials and Statistics Unit, The Institute of Cancer Research, Surrey, UK
| | - Andrew Tutt
- Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK
| | | | - Marleen Kok
- Department of Medical Oncology and Division of Tumor Biology & Immunology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Hugo M. Horlings
- Department of Pathology, University Hospital Antwerp, Antwerp, Belgium
- Division of Molecular Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Anant Madabhushi
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH USA
- Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH USA
| | - Jeroen van der Laak
- Computational Pathology Group, Department of Pathology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Francesco Ciompi
- Computational Pathology Group, Department of Pathology, Radboud University Medical Center, Nijmegen, Netherlands
| | | | - Enrique Bellolio
- Departamento de Anatomía Patológica, Universidad de La Frontera, Temuco, Chile
| | | | - Stephen B. Fox
- The Sir Peter MacCallum Cancer Centre, Melbourne, VIC Australia
- Department of Pathology, Peter MacCallum Cancer Centre Department of Pathology, Melbourne, VIC Australia
| | | | - Giuseppe Floris
- KU Leuven- Univerisity of Leuven, Department of Imaging and Pathology, Laboratory of Translational Cell & Tissue Research and KU Leuven- University Hospitals Leuven, Department of Pathology, Leuven, Belgium
| | - Jan Hudeček
- Department of Research IT, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Leonie Voorwerk
- Division of Tumor Biology & Immunology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | | | - Denis Larsimont
- Department of Pathology, Jules Bordet Institute, Brussels, Belgium
| | | | | | - Lajos Pusztai
- Department of Internal Medicine, Section of Medical Oncology, Yale Cancer Center, Yale School of Medicine, New Haven, CT USA
| | - Anna Ehinger
- Department of Clinical Genetics and Pathology, Skåne University Hospital, Lund University, Lund, Sweden
| | - Wentao Yang
- Department of Pathology, Fudan University Shanghai Cancer Centre, Shanghai, China
| | - Khalid AbdulJabbar
- Centre for Evolution and Cancer; Division of Molecular Pathology, The Institute of Cancer Research, London, UK
| | - Yinyin Yuan
- Centre for Evolution and Cancer; Division of Molecular Pathology, The Institute of Cancer Research, London, UK
| | - Rajendra Singh
- Icahn School of Medicine at Mt. Sinai, New York, NY 10029 USA
| | - Crispin Hiley
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, University College London, London, UK
| | - Maise al Bakir
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, University College London, London, UK
| | - Alexander J. Lazar
- Departments of Pathology, Genomic Medicine, Dermatology, and Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX USA
| | - Stephen Naber
- Department of Pathology and Laboratory Medicine, Tufts Medical Center, Boston, USA
| | - Stephan Wienert
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Pathology, Charitéplatz 1, 10117 Berlin, Germany
| | - Miluska Castillo
- Department of Medical Oncology and Research, Instituto Nacional de Enfermedades Neoplasicas, Lima, 15038 Peru
| | | | - Maria-Vittoria Dieci
- Medical Oncology 2, Istituto Oncologico Veneto IOV - IRCCS, Padova, Italy
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
| | - Fabrice André
- Department of Medical Oncology, Institut Gustave Roussy, Villejuif, France
| | - Charles Swanton
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, University College London, London, UK
- Francis Crick Institute, Midland Road, London, UK
| | - Jorge Reis-Filho
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Joseph Sparano
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY USA
| | - Eva Balslev
- Department of Pathology, Herlev and Gentofte Hospital, Herlev, Denmark
| | - I-Chun Chen
- Department of Oncology, National Taiwan University Cancer Center, Taipei, Taiwan
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan
- Graduate Institute of Oncology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | | | - Katherine Pogue-Geile
- National Surgical Adjuvant Breast and Bowel Project (NSABP)/NRG Oncology, Pittsburgh, PA USA
| | - Kim R. M. Blenman
- Department of Internal Medicine, Section of Medical Oncology, Yale Cancer Center, Yale School of Medicine, New Haven, CT USA
| | | | - Stuart Schnitt
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA USA
| | - Sunil R. Lakhani
- The University of Queensland Centre for Clinical Research and Pathology Queensland, Brisbane, QLD Australia
| | - Anne Vincent-Salomon
- Institut Curie, Paris Sciences Lettres Université, Inserm U934, Department of Pathology, Paris, France
| | - Federico Rojo
- Pathology Department, Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD) - CIBERONC, Madrid, Spain
- GEICAM-Spanish Breast Cancer Research Group, Madrid, Spain
| | - Jeremy P. Braybrooke
- Nuffield Department of Population Health, University of Oxford, Oxford and Department of Medical Oncology, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Matthew G. Hanna
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - M. Teresa Soler-Monsó
- Department of Pathology, Bellvitge University Hospital, IDIBELL. Breast Unit. Catalan Institut of Oncology. L ‘Hospitalet del Llobregat’, Barcelona, 08908 Catalonia Spain
| | - Daniel Bethmann
- University Hospital Halle (Saale), Institute of Pathology, Halle (Saale), Germany
| | - Carlos A. Castaneda
- Department of Medical Oncology and Research, Instituto Nacional de Enfermedades Neoplasicas, Lima, 15038 Peru
| | - Karen Willard-Gallo
- Molecular Immunology Unit, Institut Jules Bordet, Universitè Libre de Bruxelles, Brussels, Belgium
| | - Ashish Sharma
- Department of Biomedical Informatics, Emory University, Atlanta, GA USA
| | - Huang-Chun Lien
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Susan Fineberg
- Department of Pathology, Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY USA
| | - Jeppe Thagaard
- DTU Compute, Department of Applied Mathematics, Technical University of Denmark; Visiopharm A/S, Hørsholm, Denmark
| | - Laura Comerma
- GEICAM-Spanish Breast Cancer Research Group, Madrid, Spain
- Pathology Department, Hospital del Mar, Parc de Salut Mar, Barcelona, Spain
| | - Paula Gonzalez-Ericsson
- Breast Cancer Program, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN USA
| | - Edi Brogi
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Sherene Loi
- Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria Australia
- Division of Research and Cancer Medicine, Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, VIC Australia
| | - Joel Saltz
- Biomedical Informatics Department, Stony Brook University, Stony Brook, NY USA
| | - Frederick Klaushen
- Institute of Pathology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Lee Cooper
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Mohamed Amgad
- Department of Biomedical Informatics, Emory University School of Medicine, Atlanta, GA USA
| | - David A. Moore
- Department of Pathology, UCL Cancer Institute, UCL, London, UK
- University College Hospitals NHS Trust, London, UK
| | - Roberto Salgado
- Division of Research and Cancer Medicine, Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, VIC Australia
- Department of Pathology, GZA-ZNA, Antwerp, Belgium
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15
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Hudeček J, Voorwerk L, van Seijen M, Nederlof I, de Maaker M, van den Berg J, van de Vijver KK, Sikorska K, Adams S, Demaria S, Viale G, Nielsen TO, Badve SS, Michiels S, Symmans WF, Sotiriou C, Rimm DL, Hewitt SM, Denkert C, Loibl S, Loi S, Bartlett JMS, Pruneri G, Dillon DA, Cheang MCU, Tutt A, Hall JA, Kos Z, Salgado R, Kok M, Horlings HM. Application of a risk-management framework for integration of stromal tumor-infiltrating lymphocytes in clinical trials. NPJ Breast Cancer 2020; 6:15. [PMID: 32436923 PMCID: PMC7217941 DOI: 10.1038/s41523-020-0155-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 02/18/2020] [Indexed: 02/08/2023] Open
Abstract
Stromal tumor-infiltrating lymphocytes (sTILs) are a potential predictive biomarker for immunotherapy response in metastatic triple-negative breast cancer (TNBC). To incorporate sTILs into clinical trials and diagnostics, reliable assessment is essential. In this review, we propose a new concept, namely the implementation of a risk-management framework that enables the use of sTILs as a stratification factor in clinical trials. We present the design of a biomarker risk-mitigation workflow that can be applied to any biomarker incorporation in clinical trials. We demonstrate the implementation of this concept using sTILs as an integral biomarker in a single-center phase II immunotherapy trial for metastatic TNBC (TONIC trial, NCT02499367), using this workflow to mitigate risks of suboptimal inclusion of sTILs in this specific trial. In this review, we demonstrate that a web-based scoring platform can mitigate potential risk factors when including sTILs in clinical trials, and we argue that this framework can be applied for any future biomarker-driven clinical trial setting.
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Affiliation(s)
- Jan Hudeček
- Department of Research IT, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Leonie Voorwerk
- Division of Tumor Biology and Immunology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Maartje van Seijen
- Division of Molecular Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Iris Nederlof
- Division of Tumor Biology and Immunology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Michiel de Maaker
- Division of Molecular Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Jose van den Berg
- Department of Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | - Karolina Sikorska
- Department of Biometrics, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Sylvia Adams
- Department of Medicine, Perlmutter Cancer Center, New York University School of Medicine, New York, NY USA
| | - Sandra Demaria
- Department of Radiation Oncology, Weill Cornell Medicine, New York, NY USA
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY USA
| | - Giuseppe Viale
- International Breast Cancer Study Group Central Pathology Office, Department of Pathology and Laboratory Medicine, IEO European Institute of Oncology IRCCS, Milan, Italy
- University of Milan, Milan, Italy
| | - Torsten O. Nielsen
- Department of Pathology and Laboratory Medicine, Genetic Pathology Evaluation Centre, University of British Columbia, Vancouver, BC Canada
| | - Sunil S. Badve
- Department of Pathology and Laboratory Medicine, Indiana University Simon Cancer Center, Indianapolis, IN USA
| | - Stefan Michiels
- Service de Biostatistique et d’Epidémiologie, Gustave Roussy, CESP, Université-Paris Sud, Université Paris-Saclay, Villejuif, France
- CESP, Fac. de médecine - Univ. Paris-Sud, Fac. de médecine - UVSQ, INSERM, Université Paris-Saclay, Villejuif, France
| | | | - Christos Sotiriou
- Breast Cancer Translational Research Laboratory, Institut Jules Bordet, U-CRC, Université Libre de Bruxelles, Brussels, Belgium
| | - David L. Rimm
- Department of Pathology, Yale School of Medicine, New Haven, CT USA
- Department of Medicine, Yale University School of Medicine, New Haven, CT USA
| | - Stephen M. Hewitt
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD USA
| | - Carsten Denkert
- Institute of Pathology, Charité Universitätsmedizin Berlin, Berlin, Germany
- Institute of Pathology, Philipps-University Marburg, Marburg, Germany
| | | | - Sherene Loi
- Division of Research and Clinical Medicine, Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, VIC Australia
| | - John M. S. Bartlett
- Ontario Institute for Cancer Research, Toronto, ON Canada
- IGMM, Edinburgh, UK
- Edinburgh Cancer Research Centre, Western General Hospital, Edinburgh, UK
| | - Giancarlo Pruneri
- Department of Pathology and Laboratory Medicine, IRCCS Fondazion - Instituto Nazionale Tumori, Milan, Italy
- School of Medicine, University of Milan, Milan, Italy
| | - Deborah A. Dillon
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA USA
| | - Maggie C. U. Cheang
- Clinical Trials and Statistics Unit, The Institute of Cancer Research, Surrey, UK
| | - Andrew Tutt
- Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK
| | | | - Zuzana Kos
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, ON Canada
| | - Roberto Salgado
- Division of Research and Clinical Medicine, Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, VIC Australia
- Department of Pathology, GZA-ZNA Ziekenhuizen, Antwerp, Belgium
| | - Marleen Kok
- Division of Tumor Biology and Immunology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Hugo M. Horlings
- Division of Molecular Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
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16
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Amgad M, Stovgaard ES, Balslev E, Thagaard J, Chen W, Dudgeon S, Sharma A, Kerner JK, Denkert C, Yuan Y, AbdulJabbar K, Wienert S, Savas P, Voorwerk L, Beck AH, Madabhushi A, Hartman J, Sebastian MM, Horlings HM, Hudeček J, Ciompi F, Moore DA, Singh R, Roblin E, Balancin ML, Mathieu MC, Lennerz JK, Kirtani P, Chen IC, Braybrooke JP, Pruneri G, Demaria S, Adams S, Schnitt SJ, Lakhani SR, Rojo F, Comerma L, Badve SS, Khojasteh M, Symmans WF, Sotiriou C, Gonzalez-Ericsson P, Pogue-Geile KL, Kim RS, Rimm DL, Viale G, Hewitt SM, Bartlett JMS, Penault-Llorca F, Goel S, Lien HC, Loibl S, Kos Z, Loi S, Hanna MG, Michiels S, Kok M, Nielsen TO, Lazar AJ, Bago-Horvath Z, Kooreman LFS, van der Laak JAWM, Saltz J, Gallas BD, Kurkure U, Barnes M, Salgado R, Cooper LAD. Report on computational assessment of Tumor Infiltrating Lymphocytes from the International Immuno-Oncology Biomarker Working Group. NPJ Breast Cancer 2020; 6:16. [PMID: 32411818 PMCID: PMC7217824 DOI: 10.1038/s41523-020-0154-2] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 02/18/2020] [Indexed: 02/07/2023] Open
Abstract
Assessment of tumor-infiltrating lymphocytes (TILs) is increasingly recognized as an integral part of the prognostic workflow in triple-negative (TNBC) and HER2-positive breast cancer, as well as many other solid tumors. This recognition has come about thanks to standardized visual reporting guidelines, which helped to reduce inter-reader variability. Now, there are ripe opportunities to employ computational methods that extract spatio-morphologic predictive features, enabling computer-aided diagnostics. We detail the benefits of computational TILs assessment, the readiness of TILs scoring for computational assessment, and outline considerations for overcoming key barriers to clinical translation in this arena. Specifically, we discuss: 1. ensuring computational workflows closely capture visual guidelines and standards; 2. challenges and thoughts standards for assessment of algorithms including training, preanalytical, analytical, and clinical validation; 3. perspectives on how to realize the potential of machine learning models and to overcome the perceptual and practical limits of visual scoring.
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Affiliation(s)
- Mohamed Amgad
- Department of Biomedical Informatics, Emory University School of Medicine, Atlanta, GA USA
| | | | - Eva Balslev
- Department of Pathology, Herlev and Gentofte Hospital, University of Copenhagen, Herlev, Denmark
| | - Jeppe Thagaard
- DTU Compute, Department of Applied Mathematics, Technical University of Denmark, Lyngby, Denmark
- Visiopharm A/S, Hørsholm, Denmark
| | - Weijie Chen
- FDA/CDRH/OSEL/Division of Imaging, Diagnostics, and Software Reliability, Silver Spring, MD USA
| | - Sarah Dudgeon
- FDA/CDRH/OSEL/Division of Imaging, Diagnostics, and Software Reliability, Silver Spring, MD USA
| | - Ashish Sharma
- Department of Biomedical Informatics, Emory University School of Medicine, Atlanta, GA USA
| | | | - Carsten Denkert
- Institut für Pathologie, Universitätsklinikum Gießen und Marburg GmbH, Standort Marburg, Philipps-Universität Marburg, Marburg, Germany
- Institute of Pathology, Philipps-University Marburg, Marburg, Germany
- German Cancer Consortium (DKTK), Partner Site Charité, Berlin, Germany
| | - Yinyin Yuan
- Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK
- Division of Molecular Pathology, The Institute of Cancer Research, London, UK
| | - Khalid AbdulJabbar
- Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK
- Division of Molecular Pathology, The Institute of Cancer Research, London, UK
| | - Stephan Wienert
- Institut für Pathologie, Universitätsklinikum Gießen und Marburg GmbH, Standort Marburg, Philipps-Universität Marburg, Marburg, Germany
| | - Peter Savas
- Division of Research and Cancer Medicine, Peter MacCallum Cancer Centre, University of Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia
| | - Leonie Voorwerk
- Department of Tumor Biology & Immunology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | - Anant Madabhushi
- Case Western Reserve University, Department of Biomedical Engineering, Cleveland, OH USA
- Louis Stokes Cleveland Veterans Administration Medical Center, Cleveland, OH USA
| | - Johan Hartman
- Department of Oncology and Pathology, Karolinska Institutet and University Hospital, Solna, Sweden
| | - Manu M. Sebastian
- Departments of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX USA
| | - Hugo M. Horlings
- Division of Molecular Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Jan Hudeček
- Department of Research IT, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Francesco Ciompi
- Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - David A. Moore
- Department of Pathology, UCL Cancer Institute, London, UK
| | - Rajendra Singh
- Department of Pathology and Laboratory Medicine, Icahn School of Medicine at Mount Sinai, New York, NY USA
| | - Elvire Roblin
- Université Paris-Saclay, Univ. Paris-Sud, Villejuif, France
| | - Marcelo Luiz Balancin
- Department of Pathology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
| | - Marie-Christine Mathieu
- Department of Medical Biology and Pathology, Gustave Roussy Cancer Campus, Villejuif, France
| | - Jochen K. Lennerz
- Department of Pathology, Massachusetts General Hospital, Boston, MA USA
| | - Pawan Kirtani
- Department of Histopathology, Manipal Hospitals Dwarka, New Delhi, India
| | - I-Chun Chen
- Department of Oncology, National Taiwan University Cancer Center, Taipei, Taiwan
| | - Jeremy P. Braybrooke
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
- Department of Medical Oncology, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Giancarlo Pruneri
- Pathology Department, Fondazione IRCCS Istituto Nazionale Tumori and University of Milan, School of Medicine, Milan, Italy
| | | | - Sylvia Adams
- Laura and Isaac Perlmutter Cancer Center, NYU Langone Medical Center, New York, NY USA
| | - Stuart J. Schnitt
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA USA
| | - Sunil R. Lakhani
- The University of Queensland Centre for Clinical Research and Pathology Queensland, Brisbane, Australia
| | - Federico Rojo
- Pathology Department, CIBERONC-Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD), Madrid, Spain
- GEICAM-Spanish Breast Cancer Research Group, Madrid, Spain
| | - Laura Comerma
- Pathology Department, CIBERONC-Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD), Madrid, Spain
- GEICAM-Spanish Breast Cancer Research Group, Madrid, Spain
| | - Sunil S. Badve
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN USA
| | | | - W. Fraser Symmans
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX USA
| | - Christos Sotiriou
- Breast Cancer Translational Research Laboratory, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Brussels, Belgium
- ULB-Cancer Research Center (U-CRC) Université Libre de Bruxelles, Brussels, Belgium
| | - Paula Gonzalez-Ericsson
- Breast Cancer Program, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN USA
| | | | | | - David L. Rimm
- Department of Pathology, Yale University School of Medicine, New Haven, CT USA
| | - Giuseppe Viale
- Department of Pathology, IEO, European Institute of Oncology IRCCS & State University of Milan, Milan, Italy
| | - Stephen M. Hewitt
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, MD USA
| | - John M. S. Bartlett
- Ontario Institute for Cancer Research, Toronto, ON Canada
- Edinburgh Cancer Research Centre, Western General Hospital, Edinburgh, UK
| | - Frédérique Penault-Llorca
- Department of Pathology and Molecular Pathology, Centre Jean Perrin, Clermont-Ferrand, France
- UMR INSERM 1240, Universite Clermont Auvergne, Clermont-Ferrand, France
| | - Shom Goel
- Victorian Comprehensive Cancer Centre building, Peter MacCallum Cancer Centre, Melbourne, Victoria Australia
| | - Huang-Chun Lien
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Sibylle Loibl
- German Breast Group, c/o GBG-Forschungs GmbH, Neu-Isenburg, Germany
| | - Zuzana Kos
- Department of Pathology, BC Cancer, Vancouver, British Columbia Canada
| | - Sherene Loi
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia
- Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Matthew G. Hanna
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Stefan Michiels
- Gustave Roussy, Universite Paris-Saclay, Villejuif, France
- Université Paris-Sud, Institut National de la Santé et de la Recherche Médicale, Villejuif, France
| | - Marleen Kok
- Division of Molecular Oncology & Immunology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | - Alexander J. Lazar
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX USA
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX USA
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX USA
- Department of Dermatology, The University of Texas MD Anderson Cancer Center, Houston, TX USA
| | | | - Loes F. S. Kooreman
- GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, The Netherlands
- Department of Pathology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Jeroen A. W. M. van der Laak
- Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands
- Center for Medical Image Science and Visualization, Linköping University, Linköping, Sweden
| | - Joel Saltz
- Department of Biomedical Informatics, Stony Brook University, Stony Brook, NY USA
| | - Brandon D. Gallas
- FDA/CDRH/OSEL/Division of Imaging, Diagnostics, and Software Reliability, Silver Spring, MD USA
| | - Uday Kurkure
- Roche Tissue Diagnostics, Digital Pathology, Santa Clara, CA USA
| | - Michael Barnes
- Roche Diagnostics Information Solutions, Belmont, CA USA
| | - Roberto Salgado
- Division of Research and Cancer Medicine, Peter MacCallum Cancer Centre, University of Melbourne, Victoria, Australia
- Department of Pathology, GZA-ZNA Ziekenhuizen, Antwerp, Belgium
| | - Lee A. D. Cooper
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL USA
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17
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Gonzalez-Ericsson PI, Stovgaard ES, Sua LF, Reisenbichler E, Kos Z, Carter JM, Michiels S, Le Quesne J, Nielsen TO, Laenkholm AV, Fox SB, Adam J, Bartlett JM, Rimm DL, Quinn C, Peeters D, Dieci MV, Vincent-Salomon A, Cree I, Hida AI, Balko JM, Haynes HR, Frahm I, Acosta-Haab G, Balancin M, Bellolio E, Yang W, Kirtani P, Sugie T, Ehinger A, Castaneda CA, Kok M, McArthur H, Siziopikou K, Badve S, Fineberg S, Gown A, Viale G, Schnitt SJ, Pruneri G, Penault-Llorca F, Hewitt S, Thompson EA, Allison KH, Symmans WF, Bellizzi AM, Brogi E, Moore DA, Larsimont D, Dillon DA, Lazar A, Lien H, Goetz MP, Broeckx G, El Bairi K, Harbeck N, Cimino-Mathews A, Sotiriou C, Adams S, Liu SW, Loibl S, Chen IC, Lakhani SR, Juco JW, Denkert C, Blackley EF, Demaria S, Leon-Ferre R, Gluz O, Zardavas D, Emancipator K, Ely S, Loi S, Salgado R, Sanders M. The path to a better biomarker: application of a risk management framework for the implementation of PD-L1 and TILs as immuno-oncology biomarkers in breast cancer clinical trials and daily practice. J Pathol 2020; 250:667-684. [PMID: 32129476 DOI: 10.1002/path.5406] [Citation(s) in RCA: 120] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 02/18/2020] [Indexed: 02/05/2023]
Abstract
Immune checkpoint inhibitor therapies targeting PD-1/PD-L1 are now the standard of care in oncology across several hematologic and solid tumor types, including triple negative breast cancer (TNBC). Patients with metastatic or locally advanced TNBC with PD-L1 expression on immune cells occupying ≥1% of tumor area demonstrated survival benefit with the addition of atezolizumab to nab-paclitaxel. However, concerns regarding variability between immunohistochemical PD-L1 assay performance and inter-reader reproducibility have been raised. High tumor-infiltrating lymphocytes (TILs) have also been associated with response to PD-1/PD-L1 inhibitors in patients with breast cancer (BC). TILs can be easily assessed on hematoxylin and eosin-stained slides and have shown reliable inter-reader reproducibility. As an established prognostic factor in early stage TNBC, TILs are soon anticipated to be reported in daily practice in many pathology laboratories worldwide. Because TILs and PD-L1 are parts of an immunological spectrum in BC, we propose the systematic implementation of combined PD-L1 and TIL analyses as a more comprehensive immuno-oncological biomarker for patient selection for PD-1/PD-L1 inhibition-based therapy in patients with BC. Although practical and regulatory considerations differ by jurisdiction, the pathology community has the responsibility to patients to implement assays that lead to optimal patient selection. We propose herewith a risk-management framework that may help mitigate the risks of suboptimal patient selection for immuno-therapeutic approaches in clinical trials and daily practice based on combined TILs/PD-L1 assessment in BC. © 2020 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
| | - Elisabeth S Stovgaard
- Department of Pathology, Herlev and Gentofte Hospital, University of Copenhagen, Herlev, Denmark
| | - Luz F Sua
- Department of Pathology and Laboratory Medicine, Fundación Valle del Lili, and Faculty of Health Sciences, Universidad ICESI, Cali, Colombia
| | | | - Zuzana Kos
- Department of Pathology, BC Cancer Agency, Vancouver, Canada
| | - Jodi M Carter
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Stefan Michiels
- Biostatistics and Epidemiology Service, Centre de Recherche en Epidémiologie et Santé des Populations, Gustave Roussy, Université Paris-Sud, Villejuif, France
| | - John Le Quesne
- Leicester Cancer Research Centre, University of Leicester, Leicester, UK
- MRC Toxicology Unit, University of Cambridge, Leicester, UK
| | - Torsten O Nielsen
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
| | | | - Stephen B Fox
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia
| | - Julien Adam
- Department of Pathology, Gustave Roussy, Grand Paris, France
| | - John Ms Bartlett
- Ontario Institute for Cancer Research, Toronto, Canada
- Edinburgh Cancer Research Centre, Institute of Genetics and Molecular Medicine, Edinburgh, UK
| | - David L Rimm
- Department of Pathology, Yale School of Medicine, New Haven, CT, USA
| | - Cecily Quinn
- Department of Pathology, St Vincent's University Hospital and University College Dublin, Dublin, Ireland
| | - Dieter Peeters
- HistoGeneX NV, Antwerp, Belgium
- AZ Sint-Maarten Hospital, Mechelen, Belgium
| | - Maria V Dieci
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
- Medical Oncology 2, Istituto Oncologico Veneto - IRCCS, Padova, Italy
| | | | - Ian Cree
- International Agency for Research on Cancer (IARC), World Health Organization, Lyon, France
| | - Akira I Hida
- Department of Pathology, Matsuyama Shimin Hospital, Matsuyama, Japan
| | - Justin M Balko
- Breast Cancer Research Program, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Harry R Haynes
- Department of Cellular Pathology, North Bristol NHS Trust, Bristol, UK
- Translational Health Sciences, University of Bristol, Bristol, UK
| | - Isabel Frahm
- Department of Pathology, Sanatorio Mater Dei, Buenos Aires, Argentina
| | - Gabriela Acosta-Haab
- Department of Pathology, Hospital de Oncología Maria Curie, Buenos Aires, Argentina
| | - Marcelo Balancin
- Department of Pathology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
| | - Enrique Bellolio
- Department of Pathology, Universidad de La Frontera, Temuco, Chile
| | - Wentao Yang
- Department of Pathology, Fudan University Shanghai Cancer Centre, Shanghai, PR China
| | - Pawan Kirtani
- Department of Histopathology, Manipal Hospitals Dwarka, New Delhi, India
| | - Tomoharu Sugie
- Breast Surgery, Kansai Medical University Hospital, Hirakata, Japan
| | - Anna Ehinger
- Department of Clinical Genetics and Pathology, Skane University Hospital, Lund University, Lund, Sweden
| | - Carlos A Castaneda
- Department of Medical Oncology, Instituto Nacional de Enfermedades Neoplásicas, Lima, Peru
| | - Marleen Kok
- Divisions of Medical Oncology, Tumor Biology & Immunology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Heather McArthur
- Medical Oncology, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Kalliopi Siziopikou
- Department of Pathology, Breast Pathology Section, Northwestern University, Chicago, IL, USA
| | - Sunil Badve
- Department of Pathology and Laboratory Medicine, Indiana University, Indianapolis, IN, USA
| | - Susan Fineberg
- Department of Pathology, Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY, USA
| | - Allen Gown
- PhenoPath Laboratories, Seattle, WA, USA
| | - Giuseppe Viale
- Department of Pathology, Istituto Europeo di Oncologia IRCCS, Milan, Italy
- University of Milan, Milan, Italy
| | - Stuart J Schnitt
- Department of Pathology, Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Giancarlo Pruneri
- University of Milan, Milan, Italy
- Department of Pathology, IRCCS Fondazione Instituto Nazionale Tumori, Milan, Italy
| | - Frederique Penault-Llorca
- Department of Biology and Pathology, Centre Jean Perrin, Clermont Ferrand, France
- UMR INSERM 1240, Université Clermont Auvergne, Clermont Ferrand, France
| | - Stephen Hewitt
- Experimental Pathology Laboratory, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | | | | | - William F Symmans
- Department of Pathology, Division of Pathology and Laboratory Medicine, The University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - Andrew M Bellizzi
- Department of Pathology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Edi Brogi
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - David A Moore
- CRUK Lung Cancer Centre of Excellence, UCL Cancer Institute, and Department of Cellular Pathology, UCLH, London, UK
| | - Denis Larsimont
- Department of Pathology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Deborah A Dillon
- Department of Pathology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Alexander Lazar
- Department of Pathology, Division of Pathology and Laboratory Medicine, The University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - Huangchun Lien
- Graduate Institute of Pathology, National Taiwan University, Taipei, Taiwan
| | | | - Glenn Broeckx
- Department of Pathology, University Hospital Antwerp, Edegem, Belgium
| | - Khalid El Bairi
- Cancer Biomarkers Working Group, Faculty of Medicine and Pharmacy, Mohamed Ist University, Oujda, Morocco
| | - Nadia Harbeck
- Breast Center, Department of OB&GYN and CCC (LMU), University of Munich, Munich, Germany
| | - Ashley Cimino-Mathews
- Department of Pathology and Oncology, The Johns Hopkins Hospital, Baltimore, MD, USA
| | - Christos Sotiriou
- Department of Medical Oncology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Sylvia Adams
- Perlmutter Cancer Center, New York University Medical School, New York, NY, USA
| | | | | | - I-Chun Chen
- Department of Medical Oncology, National Taiwan University Cancer Center, Taipei, Taiwan
| | - Sunil R Lakhani
- The University of Queensland, Centre for Clinical Research, and Pathology Queensland, Royal Brisbane and Women's Hospital, Herston, Australia
| | - Jonathan W Juco
- Translational Medicine, Merck & Co, Inc, Kenilworth, NJ, USA
| | - Carsten Denkert
- Institute of Pathology, Universitätsklinikum Gießen und Marburg GmbH, Standort Marburg and Philipps-Universität Marburg, Marburg, Germany
| | - Elizabeth F Blackley
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Sandra Demaria
- Department of Radiation Oncology, Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, USA
| | | | - Oleg Gluz
- Johanniter GmbH - Evangelisches Krankenhaus Bethesda Mönchengladbach, West German Study Group, Mönchengladbach, Germany
| | | | | | - Scott Ely
- Translational Medicine, Bristol-Myers Squibb, Princeton, NJ, USA
| | - Sherene Loi
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia
- Division of Research, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Roberto Salgado
- Division of Research, Peter MacCallum Cancer Centre, Melbourne, Australia
- Department of Pathology, GZA-ZNA Hospitals, Antwerp, Belgium
| | - Melinda Sanders
- Breast Cancer Research Program, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
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Acs B, Leung SC, Kidwell KM, Arun I, Augulis R, Badve SS, Bai Y, Bane AL, Bartlett JM, Bayani J, Bigras G, Blank A, Borgquist S, Buikema H, Chang MC, Dietz RL, Dodson A, Ehinger A, Fineberg S, Focke CM, Gao D, Gown AM, Gutierrez C, Hartman J, Hugh JC, Kos Z, Lænkholm AV, Laurinavicius A, Levenson RM, Mahboubi-Ardakani R, Mastropasqua MG, Moriya T, Nofech-Mozes S, Osborne CK, Pantanowitz L, Penault-Llorca FM, Piper T, Quintayo MA, Rau TT, Reinhard S, Robertson S, Sakatani T, Salgado R, Spears M, Starczynski J, Sugie T, van der Vegt B, Viale G, Virk S, Zabaglo LA, Hayes DF, Dowsett M, Nielsen TO, Rimm DL. Abstract P5-02-01: Analytical validation and prognostic potential of an automated digital scoring protocol for Ki67: An International Ki67 Working Group study. Cancer Res 2020. [DOI: 10.1158/1538-7445.sabcs19-p5-02-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The nuclear proliferation biomarker Ki67 has multiple potential roles in breast cancer, including aiding decisions based on prognosis, but has unacceptable between-laboratory variability. Here we tested an open source and calibrated automated digital image analysis (DIA) platform to: (i) Assess inter-laboratory reproducibility of automated Ki67 measurement among 17 participating labs and compare those with standardized pathologist-based visual scoring. (ii) Investigate the comparability of Ki67 measurement across corresponding core biopsy and whole section cases. (iii) Test prognostic potential of the built Ki67 scoring algorithms on an independent cohort.
Methods: Two sets of 60 previously stained slides containing 30 core-cut biopsy and 30 corresponding whole tumor sections from 30 ER+ breast cancer cases were sent to 17 participating labs for automated assessment of average Ki67 expression. The blocks were centrally cut and stained for Ki67 using the Mib-1 antibody. The QuPath (open-source software) DIA platform was used to evaluate tumoral Ki67 expression. Calibration of the DIA method was performed in our previous study (Acs et al, Lab Invest 2019). A detailed guideline for building an automated Ki67 scoring algorithm was sent to the participating labs. Visual scoring of average Ki67 expression was performed by pathologists according to published standardized methods (Leung et al, NPJ Br Cancer 2016; Leung et al, Histopath 2019). Locked down DIA Ki67 scoring algorithms were applied to a validation cohort: 222 breast cancer cases from the Karolinska University Hospital in whole section format. Sufficient reproducibility to declare analytical validity was defined as an Intra Class Correlation (ICC) with lower limit of 95% credible interval (CI) >0.80. Markov Chain Monte Carlo routines for generalized linear mixed models were used to estimate ICCs and calculate corresponding CIs.
Results: The same-section ICC was 0.902 (CI: 0.852-0.949) across 17 labs using calibrated DIA platform on core biopsy slides and 0.845 (CI: 0.778-0.912) on whole sections. The different-section ICC across the 17 labs was 0.873 (CI: 0.806-0.932) scoring on core biopsy slides and 0.777 (CI: 0.670-0.874) on whole sections. The pathologist-based visual Ki67 scoring showed ICC of 0.860 for all comparisons, respectively (CI: 0.795-0.927). Similar to what was observed for visual Ki67 scoring, the DIA scores are higher for core biopsy slides compared to paired whole sections (p≤0.001; median difference: 5.31%; IQR: 11.50%). Ki67 scores of all locked down DIA algorithms correlates significantly (p≤0.023) with outcome on the validation cohort (observed hazard ratios range: 2.518-2.922).
Conclusions: Automated Ki67 evaluation using a calibrated, open-source DIA platform (QuPath) met the pre-specified criterion of success on core biopsies but not on whole sections in the multi-institutional setting. The systematic discrepancy between core biopsy and corresponding whole sections was likely due to pre-analytical factors (tissue handling, fixation) and intratumor heterogeneity. We found that different algorithms built according to calibrated DIA methods had similar prognostic potential. Assessment of clinical utility is planned.
Citation Format: Balazs Acs, Samuel C.Y. Leung, Kelley M. Kidwell, Indu Arun, Renaldas Augulis, Sunil S. Badve, Yalai Bai, Anita L. Bane, John M.S. Bartlett, Jane Bayani, Gilbert Bigras, Annika Blank, Signe Borgquist, Henk Buikema, Martin C. Chang, Robin L. Dietz, Andrew Dodson, Anna Ehinger, Susan Fineberg, Cornelia M. Focke, Dongxia Gao, Allen M. Gown, Carolina Gutierrez, Johan Hartman, Judith C. Hugh, Zuzana Kos, Anne-Vibeke Lænkholm, Arvydas Laurinavicius, Richard M. Levenson, Rustin Mahboubi-Ardakani, Mauro G. Mastropasqua, Takuya Moriya, Sharon Nofech-Mozes, C. Kent Osborne, Liron Pantanowitz, Frédérique M. Penault-Llorca, Tammy Piper, Mary Anne Quintayo, Tilman T. Rau, Stefan Reinhard, Stephanie Robertson, Takashi Sakatani, Roberto Salgado, Melanie Spears, Jane Starczynski, Tomoharu Sugie, Bert van der Vegt, Giuseppe Viale, Shakeel Virk, Lila A. Zabaglo, Daniel F. Hayes, Mitch Dowsett, Torsten O. Nielsen, David L. Rimm, International Ki67 in Breast Cancer Working Group, BIG-NABCG. Analytical validation and prognostic potential of an automated digital scoring protocol for Ki67: An International Ki67 Working Group study [abstract]. In: Proceedings of the 2019 San Antonio Breast Cancer Symposium; 2019 Dec 10-14; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2020;80(4 Suppl):Abstract nr P5-02-01.
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Affiliation(s)
- Balazs Acs
- 1Department of Pathology, Yale University School of Medicine, New Haven, CT
| | | | - Kelley M. Kidwell
- 3Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, MI
| | - Indu Arun
- 4Tata Medical Center, Kolkata, India
| | - Renaldas Augulis
- 5Vilnius University Faculty of Medicine and National Center of Pathology, Vilnius University Hospital Santaros Clinics, Vilnius, Lithuania
| | - Sunil S. Badve
- 6Indiana University Simon Cancer Center, Indianapolis, IN
| | - Yalai Bai
- 1Department of Pathology, Yale University School of Medicine, New Haven, CT
| | - Anita L. Bane
- 7Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada
| | | | - Jane Bayani
- 8Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - Gilbert Bigras
- 9Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
| | - Annika Blank
- 10Universität Bern Institut für Pathologie, Murtenstrasse, Switzerland
| | | | - Henk Buikema
- 12University Medical Center Groningen, Groningen, Netherlands
| | - Martin C. Chang
- 13Department of Pathology & Laboratory Medicine, University of Vermont Medical Center, Burlington, VT
| | - Robin L. Dietz
- 14Department of Pathology, University of Pittsburgh, Pittsburgh, PA
| | - Andrew Dodson
- 15UK NEQAS for Immunocytochemistry and In-Situ Hybridisation, London, United Kingdom
| | | | - Susan Fineberg
- 16Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY
| | | | - Dongxia Gao
- 2University of British Columbia, Vancouver, BC, Canada
| | | | - Carolina Gutierrez
- 19Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX
| | | | | | - Zuzana Kos
- 22University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada
| | - Anne-Vibeke Lænkholm
- 23Department of Surgical Pathology, Zealand University Hospital, Slagelse, Denmark
| | - Arvydas Laurinavicius
- 5Vilnius University Faculty of Medicine and National Center of Pathology, Vilnius University Hospital Santaros Clinics, Vilnius, Lithuania
| | - Richard M. Levenson
- 24Department of Medical Pathology and Laboratory Medicine, University of California Davis Medical Center, Sacramento, CA
| | - Rustin Mahboubi-Ardakani
- 24Department of Medical Pathology and Laboratory Medicine, University of California Davis Medical Center, Sacramento, CA
| | | | | | - Sharon Nofech-Mozes
- 27University of Toronto Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - C. Kent Osborne
- 19Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX
| | | | | | - Tammy Piper
- 29Edinburgh Cancer Research Centre, Western General Hospital, Edinburgh, United Kingdom
| | | | - Tilman T. Rau
- 10Universität Bern Institut für Pathologie, Murtenstrasse, Switzerland
| | - Stefan Reinhard
- 10Universität Bern Institut für Pathologie, Murtenstrasse, Switzerland
| | | | | | | | - Melanie Spears
- 8Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - Jane Starczynski
- 32Birmingham Heart of England, National Health Service, Birmingham, United Kingdom
| | | | | | | | - Shakeel Virk
- 35Department of Pathology and Molecular Medicine, Queen's University, Kingston, ON, Canada
| | | | | | - Mitch Dowsett
- 36The Institute of Cancer Research, London, United Kingdom
| | | | - David L. Rimm
- 1Department of Pathology, Yale University School of Medicine, New Haven, CT
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Robertson SJ, Pond GR, Hilton J, Petkiewicz SL, Ayroud Y, Kos Z, Gravel DH, Stober C, Vandermeer L, Arnaout A, Clemons M. Selecting Patients for Oncotype DX Testing Using Standard Clinicopathologic Information. Clin Breast Cancer 2020; 20:61-67. [DOI: 10.1016/j.clbc.2019.07.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 07/08/2019] [Accepted: 07/09/2019] [Indexed: 01/18/2023]
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20
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Leung SCY, Nielsen TO, Zabaglo LA, Arun I, Badve SS, Bane AL, Bartlett JMS, Borgquist S, Chang MC, Dodson A, Ehinger A, Fineberg S, Focke CM, Gao D, Gown AM, Gutierrez C, Hugh JC, Kos Z, Laenkholm AV, Mastropasqua MG, Moriya T, Nofech-Mozes S, Osborne CK, Penault-Llorca FM, Piper T, Sakatani T, Salgado R, Starczynski J, Sugie T, van der Vegt B, Viale G, Hayes DF, McShane LM, Dowsett M. Analytical validation of a standardised scoring protocol for Ki67 immunohistochemistry on breast cancer excision whole sections: an international multicentre collaboration. Histopathology 2019; 75:225-235. [PMID: 31017314 DOI: 10.1111/his.13880] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 04/19/2019] [Indexed: 01/12/2023]
Abstract
AIMS The nuclear proliferation marker Ki67 assayed by immunohistochemistry has multiple potential uses in breast cancer, but an unacceptable level of interlaboratory variability has hampered its clinical utility. The International Ki67 in Breast Cancer Working Group has undertaken a systematic programme to determine whether Ki67 measurement can be analytically validated and standardised among laboratories. This study addresses whether acceptable scoring reproducibility can be achieved on excision whole sections. METHODS AND RESULTS Adjacent sections from 30 primary ER+ breast cancers were centrally stained for Ki67 and sections were circulated among 23 pathologists in 12 countries. All pathologists scored Ki67 by two methods: (i) global: four fields of 100 tumour cells each were selected to reflect observed heterogeneity in nuclear staining; (ii) hot-spot: the field with highest apparent Ki67 index was selected and up to 500 cells scored. The intraclass correlation coefficient (ICC) for the global method [confidence interval (CI) = 0.87; 95% CI = 0.799-0.93] marginally met the prespecified success criterion (lower 95% CI ≥ 0.8), while the ICC for the hot-spot method (0.83; 95% CI = 0.74-0.90) did not. Visually, interobserver concordance in location of selected hot-spots varies between cases. The median times for scoring were 9 and 6 min for global and hot-spot methods, respectively. CONCLUSIONS The global scoring method demonstrates adequate reproducibility to warrant next steps towards evaluation for technical and clinical validity in appropriate cohorts of cases. The time taken for scoring by either method is practical using counting software we are making publicly available. Establishment of external quality assessment schemes is likely to improve the reproducibility between laboratories further.
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Affiliation(s)
| | | | | | | | - Sunil S Badve
- Indiana University Simon Cancer Center, Indianapolis, IN, USA
| | - Anita L Bane
- Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada
| | - John M S Bartlett
- Ontario Institute for Cancer Research, Toronto, ON, Canada.,Edinburgh Cancer Research Centre, Western General Hospital, Edinburgh, UK
| | - Signe Borgquist
- Division of Oncology and Pathology, Department of Clinical Science, Lund University, Lund, Sweden
| | - Martin C Chang
- Department of Pathology and Laboratory Medicine, University of Vermont Medical Center, Burlington, VT, USA
| | - Andrew Dodson
- Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, UK
| | - Anna Ehinger
- Department of Clinical Genetics and Pathology, Skane University Hospital, Lund University, Lund, Sweden
| | - Susan Fineberg
- Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY, USA
| | | | - Dongxia Gao
- University of British Columbia, Vancouver, BC, Canada
| | | | - Carolina Gutierrez
- Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | | | - Zuzana Kos
- University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada
| | | | | | | | - Sharon Nofech-Mozes
- University of Toronto Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - C Kent Osborne
- Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | | | - Tammy Piper
- Edinburgh Cancer Research Centre, Western General Hospital, Edinburgh, UK
| | | | - Roberto Salgado
- Department of Pathology, GZA-ZNA, Antwerp, Belgium.,Division of Research, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Jane Starczynski
- Birmingham Heart of England, National Health Service, Birmingham, UK
| | | | | | - Giuseppe Viale
- European Institute of Oncology, Milan, Italy.,University of Milan, Milan, Italy
| | - Daniel F Hayes
- University of Michigan Rogel Cancer Center, Ann Arbor, MI, USA
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21
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Robertson SJ, Ibrahim MFK, Stober C, Hilton J, Kos Z, Mazzarello S, Ramsay T, Fergusson D, Vandermeer L, Mallick R, Arnaout A, Dent SF, Segal R, Sehdev S, Gertler S, Hutton B, Clemons M. Does integration of Magee equations into routine clinical practice affect whether oncologists order the Oncotype DX test? A prospective randomized trial. J Eval Clin Pract 2019; 25:196-204. [PMID: 30672056 DOI: 10.1111/jep.13094] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 11/29/2018] [Accepted: 12/06/2018] [Indexed: 01/03/2023]
Abstract
OBJECTIVE The three Magee Equations provide an estimate of the Oncotype DX recurrence score using commonly available clinicopathologic information (tumour size, grade, oestrogen receptor, progesterone receptor, HER2, and Ki67). We assessed whether integration of Magee Equations into routine clinical practice affected the frequency of Oncotype DX requests. METHODS Patients with newly diagnosed, node negative, hormone receptor positive, and HER2 negative invasive breast cancer were randomized to undergo a Magee calculation or not. At the first clinic assessment, the oncologist was provided with all routinely available clinicopathologic information (including Ki67) either with or without the results of Magee Equations. Primary outcome was frequency of Oncotype DX ordering. Secondary outcomes included frequency of chemotherapy use, time to commencement of radiotherapy, or systemic therapy. Physician comfort with systemic therapy choices and the use of Ki67 and Magee Equations was also assessed. RESULTS Data from 175 randomized patients was available, 84 patients (48%) with and 91 (52%) without calculated Magee Equations. Oncotype DX was ordered in 10 (12.05%) and 13 (14.44%) (RR 0.83, 0.39-1.80; P = 0.64) in the Magee and no Magee groups, respectively. There were no statistically or clinically significant differences between the randomized groups for any of the secondary outcomes. Availability of both Ki67 and Magee Equations was associated with increased physician comfort around systemic treatment decisions. CONCLUSIONS In a practice where Ki67 is routinely available, addition of Magee Equations into routine clinic practice was not associated with a reduction in Oncotype DX use. Availability of both Ki67 and Magee Equations did however increase physician comfort with systemic therapy decisions.
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Affiliation(s)
- Susan J Robertson
- Eastern Ontario Regional Laboratory Association and Department of Pathology and Laboratory Medicine, The University of Ottawa, Ottawa, Canada
| | - Mohammed F K Ibrahim
- Division of Medical Oncology, Department of Medicine, The Ottawa Hospital Cancer Centre and The University of Ottawa, Ottawa, Canada
| | - Carol Stober
- Cancer Research Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - John Hilton
- Division of Medical Oncology, Department of Medicine, The Ottawa Hospital Cancer Centre and The University of Ottawa, Ottawa, Canada.,Cancer Research Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Zuzana Kos
- Eastern Ontario Regional Laboratory Association and Department of Pathology and Laboratory Medicine, The University of Ottawa, Ottawa, Canada
| | - Sasha Mazzarello
- Cancer Research Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Tim Ramsay
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada.,School of Epidemiology and Public Health, The University of Ottawa, Ottawa, Canada
| | - Dean Fergusson
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada.,School of Epidemiology and Public Health, The University of Ottawa, Ottawa, Canada
| | - Lisa Vandermeer
- Cancer Research Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Ranjeeta Mallick
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Angel Arnaout
- Cancer Research Program, Ottawa Hospital Research Institute, Ottawa, Canada.,School of Epidemiology and Public Health, The University of Ottawa, Ottawa, Canada.,Division of Surgical Oncology, Department of Surgery, The Ottawa Hospital and University of Ottawa, Ottawa, Canada
| | - Susan F Dent
- Division of Medical Oncology, Department of Medicine, The Ottawa Hospital Cancer Centre and The University of Ottawa, Ottawa, Canada
| | - Roanne Segal
- Division of Medical Oncology, Department of Medicine, The Ottawa Hospital Cancer Centre and The University of Ottawa, Ottawa, Canada
| | - Sandeep Sehdev
- Division of Medical Oncology, Department of Medicine, The Ottawa Hospital Cancer Centre and The University of Ottawa, Ottawa, Canada
| | - Stan Gertler
- Division of Medical Oncology, Department of Medicine, The Ottawa Hospital Cancer Centre and The University of Ottawa, Ottawa, Canada
| | - Brian Hutton
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada.,School of Epidemiology and Public Health, The University of Ottawa, Ottawa, Canada
| | - Mark Clemons
- Division of Medical Oncology, Department of Medicine, The Ottawa Hospital Cancer Centre and The University of Ottawa, Ottawa, Canada.,Cancer Research Program, Ottawa Hospital Research Institute, Ottawa, Canada.,School of Epidemiology and Public Health, The University of Ottawa, Ottawa, Canada
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22
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Kim RS, Song N, Gavin PG, Salgado R, Bandos H, Kos Z, Floris G, Van den Eynden GG, Badve SS, Rastogi P, Fehrenbacher L, Mamounas EP, Swain SM, Wickerham DL, Lucas PC, Costantino JP, Geyer CE, Wolmark N, Paik S, Pogue-Geile KL. NRG Oncology/NSABP B-31: Stromal tumor infiltrating lymphocytes (sTILs) and outcomes in early-stage HER2-positive breast cancer (BC). J Clin Oncol 2018. [DOI: 10.1200/jco.2018.36.15_suppl.12010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Rim S. Kim
- KU Leuven - University Hospitals Leuven, Leuven, Belgium
| | - Nan Song
- NSABP/NRG Oncology, Pittsburgh, PA
| | | | - Roberto Salgado
- NSABP/NRG Oncology and Peter MacCallum Cancer Centre, East Melbourne, Australia
| | - Hanna Bandos
- NRG Oncology, and The University of Pittsburgh, Pittsburgh, PA
| | - Zuzana Kos
- NSABP/NRGOncology and Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Giuseppe Floris
- NSABP/NRG Oncology and KU Leuven, Univ. of Leuven, Dept. of Imaging and Patthology, Leuven, Belgium
| | | | | | - Priya Rastogi
- NSABP/NRG Oncology and the University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - Louis Fehrenbacher
- NSABP/NRG Oncology, and Kaiser Permanente Northern California, Novato, CA
| | | | - Sandra M. Swain
- Georgetown Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
| | | | - Peter C. Lucas
- NSABP/NRG Oncology, and The University of Pittsburgh School of Medicine, Pittsburgh, PA
| | | | - Charles E. Geyer
- NSABP/NRG Oncology and Virginia Commonwealth University Massey Cancer Center, Richmond, VA
| | - Norman Wolmark
- NSABP/NRG Oncology, and The Allegheny Health Network Cancer Institute, Pittsburgh, PA
| | - Soonmyung Paik
- NSABP/NRG Oncology, and the Yonsei University College of Medicine, Seoul, Republic of Korea
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23
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Nielsen TO, Leung SCY, Zabaglo LA, Arun I, Badve SS, Bane AL, Bartlet JMS, Borgquist S, Chang MC, Dodson A, Ehinger A, Fineberg S, Focke CM, Gao D, Gown AM, Gutierrez C, Hugh JC, Kos Z, Lænkholm AV, Mastropasqua MG, Moriya T, Nofech-Mozes S, Osborne CK, Penault-Llorca FM, Piper T, Sakatani T, Salgado R, Starczynski J, Sugie T, van der Vegt B, Viale G, Hayes DF, McShane LM, Dowsett M. Abstract P2-03-01: Analytical validation of a standardized scoring protocol for Ki67 assessed on breast excision whole sections: An international multicenter collaboration. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p2-03-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Aims: (i) Determine whether between-observer reproducibility for Ki67 when assessed on whole sections according to a standardized scoring protocol is adequate for clinical application. (ii) Compare between-observer reproducibility of Ki67 scores assessed on hot-spots to scores using a global method that averages across a tissue section.
Background: The nuclear proliferation biomarker Ki67 has multiple potential roles in breast cancer, including aiding decisions based on prognosis, but unacceptable levels of between-laboratory variability have been observed. The International Ki67 in Breast Cancer Working Group has undertaken a systematic program to determine whether Ki67 measurement can be analytically validated and standardized across labs. In phase 1, variability in visual interpretation was identified as an important source of variability. Phases 2 and 3a showed that adherence to defined scoring methods substantially improved reproducibility in scoring tissue microarrays and core-cut biopsies. We now assess whether acceptable reproducibility can be achieved on whole sections.
Methods: Adjacent sections from 30 primary ER+ breast cancers were centrally stained for Ki67 to assemble 4 sets of 30 stained tumor sections, circulated around 23 labs in 12 countries. Ki67 was scored by 2 methods by all labs: (a) global: 4 fields of 100 tumor cells each were selected to reflect observed heterogeneity in nuclear staining (b) hot-spot: the field with highest Ki67 percentage of tumor cells with nuclear staining was selected and up to 500 cells scored. Ki67 scores were log2-transformed for statistical analyses and back-transformed for presentation. The primary objective was to assess whether either method could achieve an intraclass correlation coefficient (ICC) significantly greater than 0.8, considered substantial to almost-perfect reproducibility. Secondary objectives were to assess which method had highest observed ICC and to assess whether observers identified the same “hot-spots”.
Results: ICC for the global method was 0.87 (95%CI: 0.799-0.93), marginally meeting the prespecified success criterion. The ICC for the hot-spot method was 0.83 (95%CI: 0.74-0.90) and had a CI extending below the success criterion. Across the 23 labs, geometric mean value of the 30 scores ranged from 8.5 to 19.6 for the global method and from 12.8 to 30.3 for the hot-spot method. The overall mean (95% CI) of these values was 12.9 (11.9-14.0) and 20.9 (19.1-22.8), respectively. Visually, between-laboratory agreement in location of selected hot-spot varies between cases. The median times for scoring were 9 and 6 minutes for global and hot-spot methods respectively.
Conclusions: The global method marginally met the prespecified criterion of success; it should now be evaluated for clinical validity in appropriate cohorts of cases. The hot-spot method was observed to have slightly less reproducibility between labs. The time taken for scoring by either method is practical using counting software we are making publicly available. Establishment of external quality assessment schemes is likely to improve the reproducibility between labs further.
(Supported by a grant from the Breast Cancer Research Foundation)
Citation Format: Nielsen TO, Leung SCY, Zabaglo LA, Arun I, Badve SS, Bane AL, Bartlet JMS, Borgquist S, Chang MC, Dodson A, Ehinger A, Fineberg S, Focke CM, Gao D, Gown AM, Gutierrez C, Hugh JC, Kos Z, Lænkholm A-V, Mastropasqua MG, Moriya T, Nofech-Mozes S, Osborne CK, Penault-Llorca FM, Piper T, Sakatani T, Salgado R, Starczynski J, Sugie T, van der Vegt B, Viale G, Hayes DF, McShane LM, Dowsett M. Analytical validation of a standardized scoring protocol for Ki67 assessed on breast excision whole sections: An international multicenter collaboration [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P2-03-01.
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Affiliation(s)
- TO Nielsen
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - SCY Leung
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - LA Zabaglo
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - I Arun
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - SS Badve
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - AL Bane
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - JMS Bartlet
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - S Borgquist
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - MC Chang
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - A Dodson
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - A Ehinger
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - S Fineberg
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - CM Focke
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - D Gao
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - AM Gown
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - C Gutierrez
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - JC Hugh
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - Z Kos
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - A-V Lænkholm
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - MG Mastropasqua
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - T Moriya
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - S Nofech-Mozes
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - CK Osborne
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - FM Penault-Llorca
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - T Piper
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - T Sakatani
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - R Salgado
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - J Starczynski
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - T Sugie
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - B van der Vegt
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - G Viale
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - DF Hayes
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - LM McShane
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
| | - M Dowsett
- University of British Columbia, Vancouver, BC, Canada; The Institute of Cancer Research, London, United Kingdom; Tata Medical Center, Kolkata, West Bengal, India; Indiana University Simon Cancer Center, Indianapolis, IN; Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, ON, Canada; Ontario Institute for Cancer Research, Toronto, ON, Canada; Lund University, Lund, Sweden; Sinai Health System and University of Toronto, Toronto, ON, Canada; Ralph Lauren Centre for Breast Cancer Research, The Royal Marsden Hospital, London, United Kingdom; Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY; Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany; PhenoPath Laboratories, Seattle, WA; Lester and Sue Smith Breast Center and Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX; University of Alberta, Edmonton, AB, Canada; University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada; Zealand University Hosp
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24
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Liu S, Chen B, Burugu S, Leung S, Gao D, Virk S, Kos Z, Parulekar WR, Shepherd L, Gelmon KA, Nielsen TO. Role of Cytotoxic Tumor-Infiltrating Lymphocytes in Predicting Outcomes in Metastatic HER2-Positive Breast Cancer: A Secondary Analysis of a Randomized Clinical Trial. JAMA Oncol 2017; 3:e172085. [PMID: 28750133 DOI: 10.1001/jamaoncol.2017.2085] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Importance Accumulating evidence indicates that tumor-infiltrating lymphocytes (TILs) are associated with clinical outcomes and may predict the efficacy of chemotherapy and human epidermal growth factor receptor 2 (HER2, encoded by the gene ERBB2)-targeted therapy in patients with HER2-positive breast cancer. Objective To investigate the role of TILs, particularly cytotoxic CD8+ T cells, in the prediction of outcomes in patients with HER2-positive metastatic breast cancer randomized to an antibody-based (trastuzumab) vs a small molecule-based (lapatinib) anti-HER2 therapy. Design, Setting, and Participants The Canadian Cancer Trials Group MA.31 phase 3 clinical trial accrued patients from 21 countries and randomized 652 with HER2-positive metastatic breast cancer to receive trastuzumab or lapatinib, in combination with a taxane, from January 17, 2008, through December 1, 2011. Patients had received no prior chemotherapy or HER2-targeted therapy in the metastatic setting. The median follow-up was 21.5 months (interquartile range, 14.3-31.0). The tumor tissue collected for primary diagnosis was used in this ad hoc substudy. Sections were scored for TILs on hematoxylin-eosin (H&E)-stained sections, and immunohistochemical analysis was performed to assess CD8, FOXP3, CD56, and programmed cell death protein 1 (PD-1) expression on stromal (sTILs) and intratumoral TILs. Data were analyzed from July 15, 2015, through July 27, 2016. Interventions Treatment with trastuzumab or lapatinib in combination with taxane chemotherapy (paclitaxel or docetaxel) for 24 weeks. Main Outcomes and Measures Prognostic effects of biomarkers were evaluated for progression-free survival by stratified univariate log-rank test with Kaplan-Meier curves and by multivariate Cox proportional hazards regression; predictive effects were examined with a test of interaction between treatment allocation and biomarker classification. Results Of the 647 treated women (mean [SD] age, 55.0 [10.8] years), 614 had tumor tissue samples scored for H&E sTILs and 427 for CD8 biomarker assessments. Overall H&E sTIL counts of greater than 5% (high) were present in 215 cases (35%) but did not show significant prognostic or predictive effects. Univariate stratified analyses detected a significant predictive effect on risk for progression with lapatinib compared with trastuzumab among patients with low CD8+ sTIL counts (observed hazard ratio, 2.94; 95% CI, 1.40-6.17; P = .003) and among those with high CD8+ sTIL counts (observed hazard ratio, 1.36; 95% CI, 1.05-1.75; P = .02), confirmed in stepwise multivariate analysis (interaction P = .04). Other immunohistochemistry biomarkers were not associated with prognostic or predictive effects. Conclusions and Relevance In this secondary analysis of a phase 3 randomized clinical trial, a low level of preexisting cytotoxic sTILs predicted the most benefit from an antibody- vs a small molecule-based drug against the same target. Trial Registration clinicaltrials.gov Identifier: NCT00667251.
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Affiliation(s)
- Shuzhen Liu
- Department of Pathology and Laboratory Medicine, Genetic Pathology Evaluation Centre, University of British Columbia, Vancouver, Canada
| | - Bingshu Chen
- Canadian Cancer Trials Group, Queen's University, Kingston, Ontario, Canada
| | - Samantha Burugu
- Department of Pathology and Laboratory Medicine, Genetic Pathology Evaluation Centre, University of British Columbia, Vancouver, Canada
| | - Samuel Leung
- Department of Pathology and Laboratory Medicine, Genetic Pathology Evaluation Centre, University of British Columbia, Vancouver, Canada
| | - Dongxia Gao
- Department of Pathology and Laboratory Medicine, Genetic Pathology Evaluation Centre, University of British Columbia, Vancouver, Canada
| | - Shakeel Virk
- Canadian Cancer Trials Group, Queen's University, Kingston, Ontario, Canada
| | - Zuzana Kos
- Department of Pathology and Laboratory Medicine, University of Ottawa, The Ottawa Hospital, Ottawa, Canada
| | - Wendy R Parulekar
- Canadian Cancer Trials Group, Queen's University, Kingston, Ontario, Canada
| | - Lois Shepherd
- Canadian Cancer Trials Group, Queen's University, Kingston, Ontario, Canada
| | | | - Torsten O Nielsen
- Department of Pathology and Laboratory Medicine, Genetic Pathology Evaluation Centre, University of British Columbia, Vancouver, Canada
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25
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Hendry S, Salgado R, Gevaert T, Russell PA, John T, Thapa B, Christie M, van de Vijver K, Estrada MV, Gonzalez-Ericsson PI, Sanders M, Solomon B, Solinas C, Van den Eynden GGGM, Allory Y, Preusser M, Hainfellner J, Pruneri G, Vingiani A, Demaria S, Symmans F, Nuciforo P, Comerma L, Thompson EA, Lakhani S, Kim SR, Schnitt S, Colpaert C, Sotiriou C, Scherer SJ, Ignatiadis M, Badve S, Pierce RH, Viale G, Sirtaine N, Penault-Llorca F, Sugie T, Fineberg S, Paik S, Srinivasan A, Richardson A, Wang Y, Chmielik E, Brock J, Johnson DB, Balko J, Wienert S, Bossuyt V, Michiels S, Ternes N, Burchardi N, Luen SJ, Savas P, Klauschen F, Watson PH, Nelson BH, Criscitiello C, O’Toole S, Larsimont D, de Wind R, Curigliano G, André F, Lacroix-Triki M, van de Vijver M, Rojo F, Floris G, Bedri S, Sparano J, Rimm D, Nielsen T, Kos Z, Hewitt S, Singh B, Farshid G, Loibl S, Allison KH, Tung N, Adams S, Willard-Gallo K, Horlings HM, Gandhi L, Moreira A, Hirsch F, Dieci MV, Urbanowicz M, Brcic I, Korski K, Gaire F, Koeppen H, Lo A, Giltnane J, Ziai J, Rebelatto MC, Steele KE, Zha J, Emancipator K, Juco JW, Denkert C, Reis-Filho J, Loi S, Fox SB. Assessing Tumor-Infiltrating Lymphocytes in Solid Tumors: A Practical Review for Pathologists and Proposal for a Standardized Method from the International Immuno-Oncology Biomarkers Working Group: Part 2: TILs in Melanoma, Gastrointestinal Tract Carcinomas, Non-Small Cell Lung Carcinoma and Mesothelioma, Endometrial and Ovarian Carcinomas, Squamous Cell Carcinoma of the Head and Neck, Genitourinary Carcinomas, and Primary Brain Tumors. Adv Anat Pathol 2017; 24:311-335. [PMID: 28777143 PMCID: PMC5638696 DOI: 10.1097/pap.0000000000000161] [Citation(s) in RCA: 438] [Impact Index Per Article: 62.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Assessment of the immune response to tumors is growing in importance as the prognostic implications of this response are increasingly recognized, and as immunotherapies are evaluated and implemented in different tumor types. However, many different approaches can be used to assess and describe the immune response, which limits efforts at implementation as a routine clinical biomarker. In part 1 of this review, we have proposed a standardized methodology to assess tumor-infiltrating lymphocytes (TILs) in solid tumors, based on the International Immuno-Oncology Biomarkers Working Group guidelines for invasive breast carcinoma. In part 2 of this review, we discuss the available evidence for the prognostic and predictive value of TILs in common solid tumors, including carcinomas of the lung, gastrointestinal tract, genitourinary system, gynecologic system, and head and neck, as well as primary brain tumors, mesothelioma and melanoma. The particularities and different emphases in TIL assessment in different tumor types are discussed. The standardized methodology we propose can be adapted to different tumor types and may be used as a standard against which other approaches can be compared. Standardization of TIL assessment will help clinicians, researchers and pathologists to conclusively evaluate the utility of this simple biomarker in the current era of immunotherapy.
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Affiliation(s)
- Shona Hendry
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, Australia
- The Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia
| | - Roberto Salgado
- Breast Cancer Translational Research Laboratory/Breast International Group, Institut Jules Bordet, Brussels, Belgium
- Department of Pathology and TCRU, GZA, Antwerp, Belgium
| | - Thomas Gevaert
- Department of Development and Regeneration, Laboratory of Experimental Urology, KU Leuven, Leuven, Belgium
- Department of Pathology, AZ Klina, Brasschaat, Belgium
| | - Prudence A. Russell
- Department of Anatomical Pathology, St Vincent’s Hospital Melbourne, Fitzroy, Australia
- Department of Pathology, University of Melbourne, Parkville, Australia
| | - Tom John
- Department of Medical Oncology, Austin Health, Heidelberg, Australia
- Olivia Newton-John Cancer Research Institute, Heidelberg, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, Australia
| | - Bibhusal Thapa
- Olivia Newton-John Cancer Research Institute, Heidelberg, Australia
- Department of Medicine, University of Melbourne, Parkville, Australia
| | - Michael Christie
- Department of Anatomical Pathology, Royal Melbourne Hospital, Parkville, Australia
| | - Koen van de Vijver
- Divisions of Diagnostic Oncology & Molecular Pathology, Netherlands Cancer Institute-Antoni van Leeuwenhoek, Amsterdam, The Netherlands
| | - M. Valeria Estrada
- Department of Pathology, School of Medicine, University of California, San Diego, USA
| | | | - Melinda Sanders
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, USA
| | - Benjamin Solomon
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Cinzia Solinas
- Molecular Immunology Unit, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Gert GGM Van den Eynden
- Molecular Immunology Unit, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
- Department of Pathology, GZA Ziekenhuizen, Antwerp, Belgium
| | - Yves Allory
- Université Paris-Est, Créteil, France
- INSERM, UMR 955, Créteil, France
- Département de pathologie, APHP, Hôpital Henri-Mondor, Créteil, France
| | - Matthias Preusser
- Department of Medicine, Clinical Division of Oncology, Comprehensive Cancer Centre Vienna, Medical University of Vienna, Vienna, Austria
| | - Johannes Hainfellner
- Institute of Neurology, Comprehensive Cancer Centre Vienna, Medical University of Vienna, Vienna, Austria
| | - Giancarlo Pruneri
- European Institute of Oncology, Milan, Italy
- University of Milan, School of Medicine, Milan, Italy
| | - Andrea Vingiani
- European Institute of Oncology, Milan, Italy
- University of Milan, School of Medicine, Milan, Italy
| | - Sandra Demaria
- New York University Medical School, New York, USA
- Perlmutter Cancer Center, New York, USA
| | - Fraser Symmans
- Department of Pathology, University of Texas M.D. Anderson Cancer Center, Houston, USA
| | - Paolo Nuciforo
- Molecular Oncology Group, Vall d’Hebron Institute of Oncology, Barcelona, Spain
| | - Laura Comerma
- Molecular Oncology Group, Vall d’Hebron Institute of Oncology, Barcelona, Spain
| | | | - Sunil Lakhani
- Centre for Clinical Research and School of Medicine, The University of Queensland, Brisbane, Australia
- Pathology Queensland, Royal Brisbane and Women’s Hospital, Brisbane, Australia
| | - Seong-Rim Kim
- National Surgical Adjuvant Breast and Bowel Project Operations Center/NRG Oncology, Pittsburgh, Pennsylvania
| | - Stuart Schnitt
- Cancer Research Institute and Department of Pathology, Beth Israel Deaconess Cancer Center, Boston, USA
- Harvard Medical School, Boston, USA
| | - Cecile Colpaert
- Department of Pathology, GZA Ziekenhuizen, Sint-Augustinus, Wilrijk, Belgium
| | - Christos Sotiriou
- Department of Medical Oncology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Stefan J. Scherer
- Academic Medical Innovation, Novartis Pharmaceuticals Corporation, East Hanover, USA
| | - Michail Ignatiadis
- Department of Medical Oncology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Sunil Badve
- Department of Pathology and Laboratory Medicine, Indiana University, Indianapolis, USA
| | - Robert H. Pierce
- Cancer Immunotherapy Trials Network, Central Laboratory and Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, USA
| | - Giuseppe Viale
- Department of Pathology, Istituto Europeo di Oncologia, University of Milan, Milan, Italy
| | - Nicolas Sirtaine
- Department of Pathology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Frederique Penault-Llorca
- Department of Surgical Pathology and Biopathology, Jean Perrin Comprehensive Cancer Centre, Clermont-Ferrand, France
- University of Auvergne UMR1240, Clermont-Ferrand, France
| | - Tomohagu Sugie
- Department of Surgery, Kansai Medical School, Hirakata, Japan
| | - Susan Fineberg
- Montefiore Medical Center, Bronx, New York, USA
- The Albert Einstein College of Medicine, Bronx, New York, USA
| | - Soonmyung Paik
- National Surgical Adjuvant Breast and Bowel Project Operations Center/NRG Oncology, Pittsburgh, Pennsylvania
- Severance Biomedical Science Institute and Department of Medical Oncology, Yonsei University College of Medicine, Seoul, South Korea
| | - Ashok Srinivasan
- National Surgical Adjuvant Breast and Bowel Project Operations Center/NRG Oncology, Pittsburgh, Pennsylvania
| | - Andrea Richardson
- Harvard Medical School, Boston, USA
- Department of Pathology, Brigham and Women’s Hospital, Boston, USA
- Department of Cancer Biology, Dana Farber Cancer Institute, Boston, USA
| | - Yihong Wang
- Department of Pathology and Laboratory Medicine, Rhode Island Hospital and Lifespan Medical Center, Providence, USA
- Warren Alpert Medical School of Brown University, Providence, USA
| | - Ewa Chmielik
- Tumor Pathology Department, Maria Sklodowska-Curie Memorial Cancer Center, Gliwice, Poland
- Institute of Oncology, Gliwice Branch, Gliwice, Poland
| | - Jane Brock
- Harvard Medical School, Boston, USA
- Department of Pathology, Brigham and Women’s Hospital, Boston, USA
| | - Douglas B. Johnson
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, USA
- Vanderbilt Ingram Cancer Center, Nashville, USA
| | - Justin Balko
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, USA
- Vanderbilt Ingram Cancer Center, Nashville, USA
| | - Stephan Wienert
- Institute of Pathology, Charité Universitätsmedizin Berlin, Berlin, Germany
- VMscope GmbH, Berlin, Germany
| | - Veerle Bossuyt
- Department of Pathology, Yale University School of Medicine, New Haven, USA
| | - Stefan Michiels
- Service de Biostatistique et d’Epidémiologie, Gustave Roussy, CESP, Inserm U1018, Université-Paris Sud, Université Paris-Saclay, Villejuif, France
| | - Nils Ternes
- Service de Biostatistique et d’Epidémiologie, Gustave Roussy, CESP, Inserm U1018, Université-Paris Sud, Université Paris-Saclay, Villejuif, France
| | | | - Stephen J. Luen
- The Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Peter Savas
- The Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | | | - Peter H. Watson
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
- Trev & Joyce Deeley Research Centre, British Columbia Cancer Agency, Victoria, British Columbia, Canada
| | - Brad H. Nelson
- Trev & Joyce Deeley Research Centre, British Columbia Cancer Agency, Victoria, British Columbia, Canada
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, Canada
- Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Sandra O’Toole
- The Cancer Research Program, Garvan Institute of Medical Research, Darlinghurst, Australia
- Australian Clinical Labs, Bella Vista, Australia
| | - Denis Larsimont
- Department of Pathology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Roland de Wind
- Department of Pathology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | | | - Fabrice André
- INSERM Unit U981, and Department of Medical Oncology, Gustave Roussy, Villejuif, France
- Faculté de Médecine, Université Paris Sud, Kremlin-Bicêtre, France
| | - Magali Lacroix-Triki
- INSERM Unit U981, and Department of Medical Oncology, Gustave Roussy, Villejuif, France
| | - Mark van de Vijver
- Department of Surgical Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Federico Rojo
- Pathology Department, IIS-Fundacion Jimenez Diaz, UAM, Madrid, Spain
| | - Giuseppe Floris
- Department of Pathology, University Hospital Leuven, Leuven, Belgium
| | - Shahinaz Bedri
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Doha, Qatar
| | - Joseph Sparano
- Department of Oncology, Montefiore Medical Centre, Albert Einstein College of Medicine, Bronx, USA
| | - David Rimm
- Department of Pathology, Yale University School of Medicine, New Haven, USA
| | - Torsten Nielsen
- Genetic Pathology Evaluation Centre, Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
| | - Zuzana Kos
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Canada
| | - Stephen Hewitt
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Baljit Singh
- Department of Pathology, New York University Langone Medical Centre, New York, USA
| | - Gelareh Farshid
- Directorate of Surgical Pathology, SA Pathology, Adelaide, Australia
- Discipline of Medicine, Adelaide University, Adelaide, Australia
| | | | | | - Nadine Tung
- Division of Hematology-Oncology, Beth Israel Deaconess Medical Center, Boston, USA
| | - Sylvia Adams
- New York University Medical School, New York, USA
- Perlmutter Cancer Center, New York, USA
| | - Karen Willard-Gallo
- Molecular Immunology Unit, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Hugo M. Horlings
- Department of Pathology, Netherlands Cancer Institute-Antoni van Leeuwenhoek, Amsterdam, The Netherlands
| | - Leena Gandhi
- Perlmutter Cancer Center, New York, USA
- Dana-Farber Cancer Institute, Boston, USA
| | - Andre Moreira
- Pulmonary Pathology, New York University Center for Biospecimen Research and Development, New York University, New York, USA
| | - Fred Hirsch
- Division of Medical Oncology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, USA
| | - Maria Vittoria Dieci
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padua, Italy
- Medical Oncology 2, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Maria Urbanowicz
- European Organisation for Research and Treatment of Cancer (EORTC) Headquarters, Brussels, Belgium
| | - Iva Brcic
- Institute of Pathology, Medical University of Graz, Austria
| | - Konstanty Korski
- Pathology and Tissue Analytics, Roche Innovation Centre Munich, Penzberg, Germany
| | - Fabien Gaire
- Pathology and Tissue Analytics, Roche Innovation Centre Munich, Penzberg, Germany
| | - Hartmut Koeppen
- Research Pathology, Genentech Inc., South San Francisco, USA
| | - Amy Lo
- Research Pathology, Genentech Inc., South San Francisco, USA
- Department of Pathology, Stanford University, Palo Alto, USA
| | | | - James Ziai
- Research Pathology, Genentech Inc., South San Francisco, USA
| | | | | | - Jiping Zha
- Translational Sciences, MedImmune, Gaithersberg, USA
| | | | | | - Carsten Denkert
- Institute of Pathology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Jorge Reis-Filho
- Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, USA
| | - Sherene Loi
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Stephen B. Fox
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, Australia
- The Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia
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Hendry S, Salgado R, Gevaert T, Russell PA, John T, Thapa B, Christie M, van de Vijver K, Estrada MV, Gonzalez-Ericsson PI, Sanders M, Solomon B, Solinas C, Van den Eynden GGGM, Allory Y, Preusser M, Hainfellner J, Pruneri G, Vingiani A, Demaria S, Symmans F, Nuciforo P, Comerma L, Thompson EA, Lakhani S, Kim SR, Schnitt S, Colpaert C, Sotiriou C, Scherer SJ, Ignatiadis M, Badve S, Pierce RH, Viale G, Sirtaine N, Penault-Llorca F, Sugie T, Fineberg S, Paik S, Srinivasan A, Richardson A, Wang Y, Chmielik E, Brock J, Johnson DB, Balko J, Wienert S, Bossuyt V, Michiels S, Ternes N, Burchardi N, Luen SJ, Savas P, Klauschen F, Watson PH, Nelson BH, Criscitiello C, O’Toole S, Larsimont D, de Wind R, Curigliano G, André F, Lacroix-Triki M, van de Vijver M, Rojo F, Floris G, Bedri S, Sparano J, Rimm D, Nielsen T, Kos Z, Hewitt S, Singh B, Farshid G, Loibl S, Allison KH, Tung N, Adams S, Willard-Gallo K, Horlings HM, Gandhi L, Moreira A, Hirsch F, Dieci MV, Urbanowicz M, Brcic I, Korski K, Gaire F, Koeppen H, Lo A, Giltnane J, Ziai J, Rebelatto MC, Steele KE, Zha J, Emancipator K, Juco JW, Denkert C, Reis-Filho J, Loi S, Fox SB. Assessing Tumor-infiltrating Lymphocytes in Solid Tumors: A Practical Review for Pathologists and Proposal for a Standardized Method From the International Immunooncology Biomarkers Working Group: Part 1: Assessing the Host Immune Response, TILs in Invasive Breast Carcinoma and Ductal Carcinoma In Situ, Metastatic Tumor Deposits and Areas for Further Research. Adv Anat Pathol 2017; 24:235-251. [PMID: 28777142 PMCID: PMC5564448 DOI: 10.1097/pap.0000000000000162] [Citation(s) in RCA: 422] [Impact Index Per Article: 60.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Assessment of tumor-infiltrating lymphocytes (TILs) in histopathologic specimens can provide important prognostic information in diverse solid tumor types, and may also be of value in predicting response to treatments. However, implementation as a routine clinical biomarker has not yet been achieved. As successful use of immune checkpoint inhibitors and other forms of immunotherapy become a clinical reality, the need for widely applicable, accessible, and reliable immunooncology biomarkers is clear. In part 1 of this review we briefly discuss the host immune response to tumors and different approaches to TIL assessment. We propose a standardized methodology to assess TILs in solid tumors on hematoxylin and eosin sections, in both primary and metastatic settings, based on the International Immuno-Oncology Biomarker Working Group guidelines for TIL assessment in invasive breast carcinoma. A review of the literature regarding the value of TIL assessment in different solid tumor types follows in part 2. The method we propose is reproducible, affordable, easily applied, and has demonstrated prognostic and predictive significance in invasive breast carcinoma. This standardized methodology may be used as a reference against which other methods are compared, and should be evaluated for clinical validity and utility. Standardization of TIL assessment will help to improve consistency and reproducibility in this field, enrich both the quality and quantity of comparable evidence, and help to thoroughly evaluate the utility of TILs assessment in this era of immunotherapy.
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Affiliation(s)
- Shona Hendry
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, Australia,The Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia
| | - Roberto Salgado
- Breast Cancer Translational Research Laboratory/Breast International Group, Institut Jules Bordet, Brussels, Belgium,Department of Pathology and TCRU, GZA, Antwerp, Belgium
| | - Thomas Gevaert
- Department of Development and Regeneration, Laboratory of Experimental Urology, KU Leuven, Leuven, Belgium,Department of Pathology, AZ Klina, Brasschaat, Belgium
| | - Prudence A. Russell
- Department of Anatomical Pathology, St Vincent’s Hospital Melbourne, Fitzroy, Australia,Department of Pathology, University of Melbourne, Parkville, Australia
| | - Tom John
- Department of Medical Oncology, Austin Health, Heidelberg, Australia,Olivia Newton-John Cancer Research Institute, Heidelberg, Australia,School of Cancer Medicine, La Trobe University, Bundoora, Australia
| | - Bibhusal Thapa
- Olivia Newton-John Cancer Research Institute, Heidelberg, Australia,Department of Medicine, University of Melbourne, Parkville, Australia
| | - Michael Christie
- Department of Anatomical Pathology, Royal Melbourne Hospital, Parkville, Australia
| | - Koen van de Vijver
- Divisions of Diagnostic Oncology & Molecular Pathology, Netherlands Cancer Institute-Antoni van Leeuwenhoek, Amsterdam, The Netherlands
| | - M. Valeria Estrada
- Department of Pathology, School of Medicine, University of California, San Diego, USA
| | | | - Melinda Sanders
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, USA
| | - Benjamin Solomon
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Cinzia Solinas
- Molecular Immunology Unit, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Gert GGM Van den Eynden
- Molecular Immunology Unit, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium,Department of Pathology, GZA Ziekenhuizen, Antwerp, Belgium
| | - Yves Allory
- Université Paris-Est, Créteil, France,INSERM, UMR 955, Créteil, France,Département de pathologie, APHP, Hôpital Henri-Mondor, Créteil, France
| | - Matthias Preusser
- Department of Medicine, Clinical Division of Oncology, Comprehensive Cancer Centre Vienna, Medical University of Vienna, Vienna, Austria
| | - Johannes Hainfellner
- Institute of Neurology, Comprehensive Cancer Centre Vienna, Medical University of Vienna, Vienna, Austria
| | - Giancarlo Pruneri
- European Institute of Oncology, Milan, Italy,University of Milan, School of Medicine, Milan, Italy
| | - Andrea Vingiani
- European Institute of Oncology, Milan, Italy,University of Milan, School of Medicine, Milan, Italy
| | - Sandra Demaria
- New York University Medical School, New York, USA,Perlmutter Cancer Center, New York, USA
| | - Fraser Symmans
- Department of Pathology, University of Texas M.D. Anderson Cancer Center, Houston, USA
| | - Paolo Nuciforo
- Molecular Oncology Group, Vall d’Hebron Institute of Oncology, Barcelona, Spain
| | - Laura Comerma
- Molecular Oncology Group, Vall d’Hebron Institute of Oncology, Barcelona, Spain
| | | | - Sunil Lakhani
- Centre for Clinical Research and School of Medicine, The University of Queensland, Brisbane, Australia,Pathology Queensland, Royal Brisbane and Women’s Hospital, Brisbane, Australia
| | - Seong-Rim Kim
- National Surgical Adjuvant Breast and Bowel Project Operations Center/NRG Oncology, Pittsburgh, Pennsylvania
| | - Stuart Schnitt
- Cancer Research Institute and Department of Pathology, Beth Israel Deaconess Cancer Center, Boston, USA,Harvard Medical School, Boston, USA
| | - Cecile Colpaert
- Department of Pathology, GZA Ziekenhuizen, Sint-Augustinus, Wilrijk, Belgium
| | - Christos Sotiriou
- Department of Medical Oncology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Stefan J. Scherer
- Academic Medical Innovation, Novartis Pharmaceuticals Corporation, East Hanover, USA
| | - Michail Ignatiadis
- Department of Medical Oncology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Sunil Badve
- Department of Pathology and Laboratory Medicine, Indiana University, Indianapolis, USA
| | - Robert H. Pierce
- Cancer Immunotherapy Trials Network, Central Laboratory and Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, USA
| | - Giuseppe Viale
- Department of Pathology, Istituto Europeo di Oncologia, University of Milan, Milan, Italy
| | - Nicolas Sirtaine
- Department of Pathology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Frederique Penault-Llorca
- Department of Surgical Pathology and Biopathology, Jean Perrin Comprehensive Cancer Centre, Clermont-Ferrand, France,University of Auvergne UMR1240, Clermont-Ferrand, France
| | - Tomohagu Sugie
- Department of Surgery, Kansai Medical School, Hirakata, Japan
| | - Susan Fineberg
- Montefiore Medical Center, Bronx, New York, USA,The Albert Einstein College of Medicine, Bronx, New York, USA
| | - Soonmyung Paik
- National Surgical Adjuvant Breast and Bowel Project Operations Center/NRG Oncology, Pittsburgh, Pennsylvania,Severance Biomedical Science Institute and Department of Medical Oncology, Yonsei University College of Medicine, Seoul, South Korea
| | - Ashok Srinivasan
- National Surgical Adjuvant Breast and Bowel Project Operations Center/NRG Oncology, Pittsburgh, Pennsylvania
| | - Andrea Richardson
- Harvard Medical School, Boston, USA,Department of Pathology, Brigham and Women’s Hospital, Boston, USA,Department of Cancer Biology, Dana Farber Cancer Institute, Boston, USA
| | - Yihong Wang
- Department of Pathology and Laboratory Medicine, Rhode Island Hospital and Lifespan Medical Center, Providence, USA,Warren Alpert Medical School of Brown University, Providence, USA
| | - Ewa Chmielik
- Tumor Pathology Department, Maria Sklodowska-Curie Memorial Cancer Center, Gliwice, Poland,Institute of Oncology, Gliwice Branch, Gliwice, Poland
| | - Jane Brock
- Harvard Medical School, Boston, USA,Department of Pathology, Brigham and Women’s Hospital, Boston, USA
| | - Douglas B. Johnson
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, USA,Vanderbilt Ingram Cancer Center, Nashville, USA
| | - Justin Balko
- Department of Medicine, Vanderbilt University Medical Centre, Nashville, USA,Vanderbilt Ingram Cancer Center, Nashville, USA
| | - Stephan Wienert
- Institute of Pathology, Charité Universitätsmedizin Berlin, Berlin, Germany,VMscope GmbH, Berlin, Germany
| | - Veerle Bossuyt
- Department of Pathology, Yale University School of Medicine, New Haven, USA
| | - Stefan Michiels
- Service de Biostatistique et d’Epidémiologie, Gustave Roussy, CESP, Inserm U1018, Université-Paris Sud, Université Paris-Saclay, Villejuif, France
| | - Nils Ternes
- Service de Biostatistique et d’Epidémiologie, Gustave Roussy, CESP, Inserm U1018, Université-Paris Sud, Université Paris-Saclay, Villejuif, France
| | | | - Stephen J. Luen
- The Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia,Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Peter Savas
- The Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia,Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | | | - Peter H. Watson
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada,Trev & Joyce Deeley Research Centre, British Columbia Cancer Agency, Victoria, British Columbia, Canada
| | - Brad H. Nelson
- Trev & Joyce Deeley Research Centre, British Columbia Cancer Agency, Victoria, British Columbia, Canada,Department of Biochemistry and Microbiology, University of Victoria, Victoria, Canada,Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Sandra O’Toole
- The Cancer Research Program, Garvan Institute of Medical Research, Darlinghurst, Australia,Australian Clinical Labs, Bella Vista, Australia
| | - Denis Larsimont
- Department of Pathology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Roland de Wind
- Department of Pathology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | | | - Fabrice André
- INSERM Unit U981, and Department of Medical Oncology, Gustave Roussy, Villejuif, France,Faculté de Médecine, Université Paris Sud, Kremlin-Bicêtre, France
| | - Magali Lacroix-Triki
- INSERM Unit U981, and Department of Medical Oncology, Gustave Roussy, Villejuif, France
| | - Mark van de Vijver
- Department of Surgical Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Federico Rojo
- Pathology Department, IIS-Fundacion Jimenez Diaz, UAM, Madrid, Spain
| | - Giuseppe Floris
- Department of Pathology, University Hospital Leuven, Leuven, Belgium
| | - Shahinaz Bedri
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Doha, Qatar
| | - Joseph Sparano
- Department of Oncology, Montefiore Medical Centre, Albert Einstein College of Medicine, Bronx, USA
| | - David Rimm
- Department of Pathology, Yale University School of Medicine, New Haven, USA
| | - Torsten Nielsen
- Genetic Pathology Evaluation Centre, Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
| | - Zuzana Kos
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Canada
| | - Stephen Hewitt
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Baljit Singh
- Department of Pathology, New York University Langone Medical Centre, New York, USA
| | - Gelareh Farshid
- Directorate of Surgical Pathology, SA Pathology, Adelaide, Australia,Discipline of Medicine, Adelaide University, Adelaide, Australia
| | | | | | - Nadine Tung
- Division of Hematology-Oncology, Beth Israel Deaconess Medical Center, Boston, USA
| | - Sylvia Adams
- New York University Medical School, New York, USA,Perlmutter Cancer Center, New York, USA
| | - Karen Willard-Gallo
- Molecular Immunology Unit, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Hugo M. Horlings
- Department of Pathology, Netherlands Cancer Institute-Antoni van Leeuwenhoek, Amsterdam, The Netherlands
| | - Leena Gandhi
- Perlmutter Cancer Center, New York, USA,Dana-Farber Cancer Institute, Boston, USA
| | - Andre Moreira
- Pulmonary Pathology, New York University Center for Biospecimen Research and Development, New York University, New York, USA
| | - Fred Hirsch
- Division of Medical Oncology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, USA
| | - Maria Vittoria Dieci
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padua, Italy,Medical Oncology 2, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Maria Urbanowicz
- European Organisation for Research and Treatment of Cancer (EORTC) Headquarters, Brussels, Belgium
| | - Iva Brcic
- Institute of Pathology, Medical University of Graz, Austria
| | - Konstanty Korski
- Pathology and Tissue Analytics, Roche Innovation Centre Munich, Penzberg, Germany
| | - Fabien Gaire
- Pathology and Tissue Analytics, Roche Innovation Centre Munich, Penzberg, Germany
| | - Hartmut Koeppen
- Research Pathology, Genentech Inc., South San Francisco, USA
| | - Amy Lo
- Research Pathology, Genentech Inc., South San Francisco, USA,Department of Pathology, Stanford University, Palo Alto, USA
| | | | - James Ziai
- Research Pathology, Genentech Inc., South San Francisco, USA
| | | | | | - Jiping Zha
- Translational Sciences, MedImmune, Gaithersberg, USA
| | | | | | - Carsten Denkert
- Institute of Pathology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Jorge Reis-Filho
- Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, USA
| | - Sherene Loi
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Stephen B. Fox
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, Australia,The Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia
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Douglas G, Howitt BE, Schoolmeester JK, Schwartz L, Kos Z, Islam S, Djordjevic B, Parra-Herran C. Architectural overlap between benign endocervix and pattern-A endocervical adenocarcinoma: Are all pattern-A tumors invasive? Pathol Res Pract 2017; 213:799-803. [PMID: 28554747 DOI: 10.1016/j.prp.2017.03.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 03/03/2017] [Accepted: 03/06/2017] [Indexed: 10/20/2022]
Abstract
Studies on the pattern-based classification for invasive endocervical adenocarcinoma showed that tumors with nondestructive invasion (pattern-A) have a 0% rate of nodal metastases. Our understanding of pattern-A tumors and their distinction from in-situ adenocarcinoma requires further study. Thirteen sections diagnosed independently as pattern-A adenocarcinoma by three gynecologic pathologists, and 14 sections of benign endocervix were selected. Three additional pathologists (reviewers) evaluated a digital image from each section and classified it as pattern-A or benign based on architecture only. To blind the interpretation to cytologic features, nuclei and cytoplasm were obscured using morphometric software (Zen 2011, Carl Zeiss Microscopy, Germany). 13/27 cases (48%; 8 pattern-A, 5 benign) were correctly classified by all reviewers; 19/27 (70%; 10 pattern-A, 9 benign) were correctly classified by ≥2 reviewers. 3/13 pattern-A cases (23%) were interpreted as benign by ≥2 reviewers. Conversely, 5/14 benign cervices (36%) were misinterpreted as pattern-A by ≥2 reviewers. The number of glands per 20× field was higher in pattern-A cases with high reviewer agreement (p=0.004). An abnormal architecture is seen in many pattern-A adenocarcinomas in support of their invasive nature; some, however, have architecture that overlaps with that of benign endocervix thus may actually represent in-situ lesions. Likewise, normal cervix can be architecturally complex and mirror patterns that pathologists would classify as pattern-A if malignant cytologic features were present. Based on this overlap and the nil risk of nodal spread, an emphasis on the non-destructive, rather than the invasive, nature of pattern-A adenocarcinoma is recommended.
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Affiliation(s)
- Gregory Douglas
- The Ottawa Hospital and University of Ottawa, Ottawa, ON, Canada
| | - Brooke E Howitt
- Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | | | - Lauren Schwartz
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Zuzana Kos
- The Ottawa Hospital and University of Ottawa, Ottawa, ON, Canada
| | - Shahidul Islam
- The Ottawa Hospital and University of Ottawa, Ottawa, ON, Canada
| | - Bojana Djordjevic
- Sunnybrook Health Sciences Centre and University of Toronto, Toronto, ON, Canada
| | - Carlos Parra-Herran
- Sunnybrook Health Sciences Centre and University of Toronto, Toronto, ON, Canada.
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28
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Liu S, Chen B, Burugu S, Leung S, Gao D, Virk S, Kos Z, Parulekar WR, Shepherd L, Gelmon K, Nielsen TO. Abstract P1-09-08: Predictive effect of cytotoxic tumor infiltrating lymphocytes in HER2-positive metastatic breast cancer: A correlative study with CCTG MA.31. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p1-09-08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background and Objectives: The presence of tumor infiltrating lymphocytes (TILs), particularly CD8+ cytotoxic T-cells, has been associated with improved prognosis in patients with HER2+ breast cancer. Increasing levels of TILs also appear to predict response to adjuvant trastuzumab in early breast cancer, although they did not predict benefit of combined trastuzumab-lapatinib neoadjuvant dual therapy over monotherapy in NeoALLTO. CCTG MA.31 randomized 652 women with HER2+ metastatic breast cancer to treatment with trastuzumab (T) vs. lapatinib (L), in combination with taxane (Tax) chemotherapy for 24 weeks, followed by the same HER2-targeted monotherapy. Final results from MA.31 found trastuzumab was superior to lapatinib for the primary endpoint of progression free survival (PFS): the hazard ratio (HR) for lapatinib to trastuzumab was 1.37 (95% CI, 1.13-1.65). Although both agents block HER2 signaling, trastuzumab has additional mechanisms of action via the immune system. We hypothesized that TIL levels may predict response to HER2-targeted therapy (trastuzumab vs. lapatinib).
Methods: MA.31 included HER2+ metastatic breast cancer patients, median age 55 years, and median follow-up 21.5 months. Overall TILs were counted per published guidelines on the original H&E stained sections used for pathology review at study entry. Immunohistochemistry (IHC) was performed on unstained sections from tissue microarrays or individual formalin-fixed paraffin-embedded blocks to test expression of lymphocyte biomarkers CD8, FOXP3, CD56 and PD-1 on stromal and intra-tumoral TILs (sTILs, iTILs). Statistical analysis was conducted by CCTG for a total of 9 prespecified biomarker tests. Associations of TILs with PFS were evaluated by univariate stratified log-rank test with graphical Kaplan-Meier curves, and by stratified multivariate Cox proportional hazards regression analysis. Predictive effect was examined with a test of interaction between treatment allocation and biomarker classification (high vs. low, using pre-established cutpoints).
Results: Of the 652 cases, 614 had slides for overall TIL assessment and 427 for IHC biomarker assessments. In this correlative study set, superiority of trastuzumab over lapatinib for PFS was confirmed in multivariate analysis (LTax/T vs. TTax/L: HR = 2.55, 95% CI = 1.43-4.55, p = 0.001). TIL counts by H&E were neither prognostic nor predictive in this set of metastatic HER2+ breast cancers. Lymphocyte IHC markers were not prognostic. However, prespecified stratified univariate analysis detected a significantly higher risk for lapatinib over trastuzumab (HR = 2.94, 95% CI = 1.40-6.17, p = 0.003) in patients with low CD8+ sTIL (< 3) than was observed among those with high CD8+ sTIL (HR = 1.36, 95% CI = 1.05-1.75, p = 0.019). This differential effect was confirmed in multivariate analysis (interaction test p = 0.042). The other tested biomarkers did not demonstrate significant predictive effects.
Conclusions: In this correlative study of metastatic HER2+ breast cancer, a low level of pre-existing stromal cytotoxic T cell infiltration predicts women who benefit most from trastuzumab over lapatinib. Overall TIL counts were neither prognostic nor predictive.
Citation Format: Liu S, Chen B, Burugu S, Leung S, Gao D, Virk S, Kos Z, Parulekar WR, Shepherd L, Gelmon K, Nielsen TO. Predictive effect of cytotoxic tumor infiltrating lymphocytes in HER2-positive metastatic breast cancer: A correlative study with CCTG MA.31 [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P1-09-08.
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Affiliation(s)
- S Liu
- University of British Columbia and Vancouver Coastal Health Research Institute; Canadian Cancer Trials Group; University of Ottawa; British Columbia Cancer Agency
| | - B Chen
- University of British Columbia and Vancouver Coastal Health Research Institute; Canadian Cancer Trials Group; University of Ottawa; British Columbia Cancer Agency
| | - S Burugu
- University of British Columbia and Vancouver Coastal Health Research Institute; Canadian Cancer Trials Group; University of Ottawa; British Columbia Cancer Agency
| | - S Leung
- University of British Columbia and Vancouver Coastal Health Research Institute; Canadian Cancer Trials Group; University of Ottawa; British Columbia Cancer Agency
| | - D Gao
- University of British Columbia and Vancouver Coastal Health Research Institute; Canadian Cancer Trials Group; University of Ottawa; British Columbia Cancer Agency
| | - S Virk
- University of British Columbia and Vancouver Coastal Health Research Institute; Canadian Cancer Trials Group; University of Ottawa; British Columbia Cancer Agency
| | - Z Kos
- University of British Columbia and Vancouver Coastal Health Research Institute; Canadian Cancer Trials Group; University of Ottawa; British Columbia Cancer Agency
| | - WR Parulekar
- University of British Columbia and Vancouver Coastal Health Research Institute; Canadian Cancer Trials Group; University of Ottawa; British Columbia Cancer Agency
| | - L Shepherd
- University of British Columbia and Vancouver Coastal Health Research Institute; Canadian Cancer Trials Group; University of Ottawa; British Columbia Cancer Agency
| | - K Gelmon
- University of British Columbia and Vancouver Coastal Health Research Institute; Canadian Cancer Trials Group; University of Ottawa; British Columbia Cancer Agency
| | - TO Nielsen
- University of British Columbia and Vancouver Coastal Health Research Institute; Canadian Cancer Trials Group; University of Ottawa; British Columbia Cancer Agency
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He Y, Northey JJ, Pelletier A, Kos Z, Meunier L, Haibe-Kains B, Mes-Masson AM, Côté JF, Siegel PM, Lamarche-Vane N. The Cdc42/Rac1 regulator CdGAP is a novel E-cadherin transcriptional co-repressor with Zeb2 in breast cancer. Oncogene 2017; 36:3490-3503. [PMID: 28135249 PMCID: PMC5423781 DOI: 10.1038/onc.2016.492] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 11/23/2016] [Accepted: 11/28/2016] [Indexed: 11/09/2022]
Abstract
The loss of E-cadherin causes dysfunction of the cell-cell junction machinery, which is an initial step in epithelial-to-mesenchymal transition (EMT), facilitating cancer cell invasion and the formation of metastases. A set of transcriptional repressors of E-cadherin (CDH1) gene expression, including Snail1, Snail2 and Zeb2 mediate E-cadherin downregulation in breast cancer. However, the molecular mechanisms underlying the control of E-cadherin expression in breast cancer progression remain largely unknown. Here, by using global gene expression approaches, we uncover a novel function for Cdc42 GTPase-activating protein (CdGAP) in the regulation of expression of genes involved in EMT. We found that CdGAP used its proline-rich domain to form a functional complex with Zeb2 to mediate the repression of E-cadherin expression in ErbB2-transformed breast cancer cells. Conversely, knockdown of CdGAP expression led to a decrease of the transcriptional repressors Snail1 and Zeb2, and this correlated with an increase in E-cadherin levels, restoration of cell-cell junctions, and epithelial-like morphological changes. In vivo, loss of CdGAP in ErbB2-transformed breast cancer cells impaired tumor growth and suppressed metastasis to lungs. Finally, CdGAP was highly expressed in basal-type breast cancer cells, and its strong expression correlated with poor prognosis in breast cancer patients. Together, these data support a previously unknown nuclear function for CdGAP where it cooperates in a GAP-independent manner with transcriptional repressors to function as a critical modulator of breast cancer through repression of E-cadherin transcription. Targeting Zeb2-CdGAP interactions may represent novel therapeutic opportunities for breast cancer treatment.
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Affiliation(s)
- Y He
- Cancer Research Program, Research Institute of the McGill University Health Center, Department of Anatomy and Cell Biology, McGill University, Montreal, Quebec, Canada
| | - J J Northey
- Goodman Cancer Research Centre, McGill University, Montreal, Quebec, Canada
| | - A Pelletier
- Institut de recherches cliniques de Montréal, Montreal, Quebec, Canada
| | - Z Kos
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - L Meunier
- Centre de recherche du Centre Hospitalier de l'Université de Montréal (CR/CHUM), Montreal, Quebec, Canada
| | - B Haibe-Kains
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.,Department of Computer Science, University of Toronto, Toronto, Ontario, Canada
| | - A-M Mes-Masson
- Centre de recherche du Centre Hospitalier de l'Université de Montréal (CR/CHUM), Montreal, Quebec, Canada
| | - J-F Côté
- Institut de recherches cliniques de Montréal, Montreal, Quebec, Canada
| | - P M Siegel
- Goodman Cancer Research Centre, McGill University, Montreal, Quebec, Canada
| | - N Lamarche-Vane
- Cancer Research Program, Research Institute of the McGill University Health Center, Department of Anatomy and Cell Biology, McGill University, Montreal, Quebec, Canada
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Asleh-Aburaya K, Sheffield BS, Kos Z, Won JR, Wang XQ, Gao D, Wolber R, Gilks CB, Bernard PS, Chia SKL, Nielsen TO. Basal biomarkers nestin and INPP4b identify intrinsic subtypes accurately in breast cancers that are weakly positive for oestrogen receptor. Histopathology 2016; 70:185-194. [DOI: 10.1111/his.13038] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 07/10/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Karama Asleh-Aburaya
- Department of Pathology and Laboratory Medicine; Genetic Pathology Evaluation Centre; University of British Columbia; Vancouver BC Canada
| | - Brandon S Sheffield
- Department of Pathology and Laboratory Medicine; Genetic Pathology Evaluation Centre; University of British Columbia; Vancouver BC Canada
| | - Zuzana Kos
- Department of Pathology and Laboratory Medicine; University of Ottawa and The Ottawa Hospital; Ottawa ON Canada
| | - Jennifer R Won
- Department of Pathology and Laboratory Medicine; Genetic Pathology Evaluation Centre; University of British Columbia; Vancouver BC Canada
- Department of Pathology and Laboratory Medicine; Canadian Immunohistochemistry Quality Control (CIQC); University of British Columbia; Vancouver BC Canada
| | - Xiu Q Wang
- Department of Pathology and Laboratory Medicine; Genetic Pathology Evaluation Centre; University of British Columbia; Vancouver BC Canada
| | - Dongxia Gao
- Department of Pathology and Laboratory Medicine; Genetic Pathology Evaluation Centre; University of British Columbia; Vancouver BC Canada
| | - Robert Wolber
- Department of Pathology and Laboratory Medicine; Lions Gate Hospital; North Vancouver BC Canada
| | - C Blake Gilks
- Department of Pathology and Laboratory Medicine; Genetic Pathology Evaluation Centre; University of British Columbia; Vancouver BC Canada
- Department of Pathology and Laboratory Medicine; Canadian Immunohistochemistry Quality Control (CIQC); University of British Columbia; Vancouver BC Canada
| | - Philip S Bernard
- Department of Pathology; University of Utah/Health Sciences; Salt Lake City UT USA
| | - Stephen K L Chia
- Department of Medical Oncology; British Columbia Cancer Agency; Vancouver BC Canada
| | - Torsten O Nielsen
- Department of Pathology and Laboratory Medicine; Genetic Pathology Evaluation Centre; University of British Columbia; Vancouver BC Canada
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Leung SCY, Nielsen TO, Zabaglo L, Arun I, Badve SS, Bane AL, Bartlett JMS, Borgquist S, Chang MC, Dodson A, Enos RA, Fineberg S, Focke CM, Gao D, Gown AM, Grabau D, Gutierrez C, Hugh JC, Kos Z, Lænkholm AV, Lin MG, Mastropasqua MG, Moriya T, Nofech-Mozes S, Osborne CK, Penault-Llorca FM, Piper T, Sakatani T, Salgado R, Starczynski J, Viale G, Hayes DF, McShane LM, Dowsett M. Analytical validation of a standardized scoring protocol for Ki67: phase 3 of an international multicenter collaboration. NPJ Breast Cancer 2016; 2:16014. [PMID: 28721378 PMCID: PMC5515324 DOI: 10.1038/npjbcancer.2016.14] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 02/22/2016] [Accepted: 04/01/2016] [Indexed: 11/09/2022] Open
Abstract
Pathological analysis of the nuclear proliferation biomarker Ki67 has multiple potential roles in breast and other cancers. However, clinical utility of the immunohistochemical (IHC) assay for Ki67 immunohistochemistry has been hampered by unacceptable between-laboratory analytical variability. The International Ki67 Working Group has conducted a series of studies aiming to decrease this variability and improve the evaluation of Ki67. This study tries to assess whether acceptable performance can be achieved on prestained core-cut biopsies using a standardized scoring method. Sections from 30 primary ER+ breast cancer core biopsies were centrally stained for Ki67 and circulated among 22 laboratories in 11 countries. Each laboratory scored Ki67 using three methods: (1) global (4 fields of 100 cells each); (2) weighted global (same as global but weighted by estimated percentages of total area); and (3) hot-spot (single field of 500 cells). The intraclass correlation coefficient (ICC), a measure of interlaboratory agreement, for the unweighted global method (0.87; 95% credible interval (CI): 0.81–0.93) met the prespecified success criterion for scoring reproducibility, whereas that for the weighted global (0.87; 95% CI: 0.7999–0.93) and hot-spot methods (0.84; 95% CI: 0.77–0.92) marginally failed to do so. The unweighted global assessment of Ki67 IHC analysis on core biopsies met the prespecified criterion of success for scoring reproducibility. A few cases still showed large scoring discrepancies. Establishment of external quality assessment schemes is likely to improve the agreement between laboratories further. Additional evaluations are needed to assess staining variability and clinical validity in appropriate cohorts of samples.
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Affiliation(s)
- Samuel C Y Leung
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Torsten O Nielsen
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Lila Zabaglo
- Academic Department of Biochemistry, Royal Marsden Hospital and Institute of Cancer Research, London, United Kingdom
| | - Indu Arun
- Department of Pathology, Tata Medical Center, Kolkata, West Bengal, India
| | - Sunil S Badve
- Department of Pathology and Laboratory Medicine, Indiana University Simon Cancer Center, Indianapolis, Indiana, USA
| | - Anita L Bane
- Department of Pathology and Molecular Medicine, Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, Ontario, Canada
| | - John M S Bartlett
- Transformative Pathology, Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Signe Borgquist
- Department of Clinical Sciences, Division of Oncology and Pathology, Lund University, Lund, Sweden
| | - Martin C Chang
- Department of Pathology, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Andrew Dodson
- Academic Department of Biochemistry, Royal Marsden Hospital and Institute of Cancer Research, London, United Kingdom
| | | | - Susan Fineberg
- Department of Pathology, Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, New York, USA
| | - Cornelia M Focke
- Department of Pathology, Dietrich-Bonhoeffer Medical Center, Neubrandenburg, Mecklenburg-Vorpommern, Germany
| | - Dongxia Gao
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Allen M Gown
- PhenoPath Laboratories, Seattle, Washington, USA
| | - Dorthe Grabau
- Department of Clinical Sciences, Division of Oncology and Pathology, Lund University, Lund, Sweden
| | - Carolina Gutierrez
- Lester and Sue Smith Breast Center and Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA
| | - Judith C Hugh
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada
| | - Zuzana Kos
- Department of Pathology and Laboratory Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada
| | | | - Ming-Gang Lin
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Mauro G Mastropasqua
- Division of Pathology and Laboratory Medicine, European Institute of Oncology, Milan, Italy
| | - Takuya Moriya
- Department of Pathology, Kawasaki Medical School, Kurashiki, Okayama Prefecture, Japan
| | - Sharon Nofech-Mozes
- Department of Laboratory Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - C Kent Osborne
- Lester and Sue Smith Breast Center and Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA
| | | | - Tammy Piper
- Biomarkers & Companion Diagnostics Group, Edinburgh Cancer Research Centre, Western General Hospital, Edinburgh, United Kingdom
| | - Takashi Sakatani
- Department of Pathology, Nippon Medical School, Bunkyo-ku, Tokyo, Japan
| | - Roberto Salgado
- Breast Cancer Translational Research Laboratory, Institut Jules Bordet, Brussels, Belgium
| | - Jane Starczynski
- Department of Cellular Pathology, Birmingham Heart of England, National Health Service, Birmingham, United Kingdom
| | - Giuseppe Viale
- Division of Pathology and Laboratory Medicine, European Institute of Oncology and University of Milan, Milan, Italy
| | - Daniel F Hayes
- Breast Oncology Program, Department of Internal Medicine, University of Michigan Comprehensive Cancer Center, Ann Arbor, Michigan, USA
| | - Lisa M McShane
- Biometric Research Branch, Division of Cancer Treatment and Diagnosis, National Cancer Institute, Bethesda, Maryland, USA
| | - Mitch Dowsett
- Academic Department of Biochemistry, Royal Marsden Hospital and Institute of Cancer Research, London, United Kingdom
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Sheffield BS, Kos Z, Asleh-Aburaya K, Wang XQ, Leung S, Gao D, Won J, Chow C, Rachamadugu R, Stijleman I, Wolber R, Gilks CB, Myles N, Thomson T, Hayes MM, Bernard PS, Nielsen TO, Chia SKL. Molecular subtype profiling of invasive breast cancers weakly positive for estrogen receptor. Breast Cancer Res Treat 2016; 155:483-90. [DOI: 10.1007/s10549-016-3689-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 01/20/2016] [Indexed: 11/24/2022]
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Affiliation(s)
- Zuzana Kos
- University of Ottawa and The Ottawa Hospital; Ottawa ON Canada
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Sheffield BS, Kos Z, Wang X, Chow C, Lau S, Wolber R, Gilks CB, Myles N, Thomson TA, Hayes MM, Rachamadugu R, Stijleman IJ, Bernard PB, Nielsen TO, Chia SKL. Molecular profiling of ER weakly-positive breast cancer. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.15_suppl.525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Brandon S. Sheffield
- University of British Columbia, Department of Laboratory Medicine and Pathology, Vancouver, BC, Canada
| | - Zuzana Kos
- The Ottawa Hospital, Department of Pathology and Laboratory Medicine, Ottawa, ON, Canada
| | - Xiuqing Wang
- University of British Columbia, Vancouver, BC, Canada
| | - Christine Chow
- University of British Columbia, Genetic Pathology Evaluation Centre, Vancouver, BC, Canada
| | - Sherman Lau
- University of British Columbia, Genetic Pathology Evaluation Centre, Vancouver, BC, Canada
| | - Robert Wolber
- Lions Gate Hospital, Department of Laboratory Medicine and Pathology, Vancouver, BC, Canada
| | - Cyril Blake Gilks
- Vancouver General Hospital, Division of Anatomical Pathology, Vancouver, BC, Canada
| | - Nickolas Myles
- St. Paul's Hospital, Department of Laboratory Medicine and Pathology, Vancouver, BC, Canada
| | - Thomas A. Thomson
- British Columbia Cancer Agency, Department of Laboratory Medicine, Vancouver, BC, Canada
| | - Malcolm M. Hayes
- British Columbia Cancer Agency, Department of Laboratory Medicine, Vancouver, BC, Canada
| | - Rakesh Rachamadugu
- University of Utah/Huntsman Cancer Centre, Department of Pathology, Salt Lake City, UT
| | - Inge J. Stijleman
- University of Utah/Huntsman Cancer Centre, Department of Pathology, Salt Lake City, UT
| | - Philip B. Bernard
- University of Utah/Huntsman Cancer Centre, Department of Pathology, Salt Lake City, UT
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Salgado R, Denkert C, Demaria S, Sirtaine N, Klauschen F, Pruneri G, Wienert S, Van den Eynden G, Baehner FL, Penault-Llorca F, Perez EA, Thompson EA, Symmans WF, Richardson AL, Brock J, Criscitiello C, Bailey H, Ignatiadis M, Floris G, Sparano J, Kos Z, Nielsen T, Rimm DL, Allison KH, Reis-Filho JS, Loibl S, Sotiriou C, Viale G, Badve S, Adams S, Willard-Gallo K, Loi S. The evaluation of tumor-infiltrating lymphocytes (TILs) in breast cancer: recommendations by an International TILs Working Group 2014. Ann Oncol 2014; 26:259-71. [PMID: 25214542 DOI: 10.1093/annonc/mdu450] [Citation(s) in RCA: 1852] [Impact Index Per Article: 185.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The morphological evaluation of tumor-infiltrating lymphocytes (TILs) in breast cancer (BC) is gaining momentum as evidence strengthens for the clinical relevance of this immunological biomarker. Accumulating evidence suggests that the extent of lymphocytic infiltration in tumor tissue can be assessed as a major parameter by evaluation of hematoxylin and eosin (H&E)-stained tumor sections. TILs have been shown to provide prognostic and potentially predictive value, particularly in triple-negative and human epidermal growth factor receptor 2-overexpressing BC. DESIGN A standardized methodology for evaluating TILs is now needed as a prerequisite for integrating this parameter in standard histopathological practice, in a research setting as well as in clinical trials. This article reviews current data on the clinical validity and utility of TILs in BC in an effort to foster better knowledge and insight in this rapidly evolving field, and to develop a standardized methodology for visual assessment on H&E sections, acknowledging the future potential of molecular/multiplexed approaches. CONCLUSIONS The methodology provided is sufficiently detailed to offer a uniformly applied, pragmatic starting point and improve consistency and reproducibility in the measurement of TILs for future studies.
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Affiliation(s)
- R Salgado
- Breast Cancer Translational Research Laboratory/Breast International Group, Institut Jules Bordet, Brussels Department of Pathology and TCRU, GZA, Antwerp, Belgium
| | - C Denkert
- Institute of Pathology, Charité -University Hospital, Berlin, Germany
| | - S Demaria
- Perlmutter Cancer Center, New York University Medical School, New York, USA
| | - N Sirtaine
- Department of Pathology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - F Klauschen
- Institute of Pathology, Charité -University Hospital, Berlin, Germany
| | - G Pruneri
- European Institute of Oncology (IEO) and University of Milan, Milan, Italy
| | - S Wienert
- Institute of Pathology, Charité -University Hospital, Berlin, Germany
| | - G Van den Eynden
- Department of Pathology GZA, TCRU Hospitals and CORE Antwerp University, Antwerp, Belgium
| | - F L Baehner
- Genomic Health, Inc., Redwood City, USA University of California San Francisco, San Francisco, USA
| | - F Penault-Llorca
- Clermont-Ferrand Biopathology, University of Auvergne, Jean Perrin Comprehensive Cancer Centre, Clermont-Ferrand, France
| | - E A Perez
- Division of Haematology/Medical Oncology and
| | - E A Thompson
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Mayo Clinic, Jacksonville
| | - W F Symmans
- Department of Pathology, The UT M.D. Anderson Cancer Center, Boston
| | - A L Richardson
- Department of Pathology, Brigham and Women's Hospital, Boston Department of Cancer Biology, Dana Farber Cancer Institute, Boston
| | - J Brock
- Department of Cancer Biology, Dana Farber Cancer Institute, Boston Department of Cancer Biology, Harvard Medical School, Boston, USA
| | | | - H Bailey
- Genomic Health, Inc., Redwood City, USA
| | - M Ignatiadis
- Department of Medical Oncology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels
| | - G Floris
- Department of Pathology, University Hospital Leuven, Leuven, Belgium
| | - J Sparano
- Department of Medicine, Department of Obstetrics and Gynecology and Women's Health, Albert Einstein Medical Center, Bronx, USA
| | - Z Kos
- Laboratory Medicine Program, University Health Network, University of Toronto, Toronto
| | - T Nielsen
- Department of Pathology and Laboratory Medicine, Genetic Pathology Evaluation Centre, University of British Columbia, Vancouver, Canada
| | - D L Rimm
- Department of Pathology, Yale University School of Medicine, New Haven
| | - K H Allison
- Department of Pathology, Stanford University Medical Centre, Stanford
| | - J S Reis-Filho
- Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, USA
| | - S Loibl
- German Breast Group, Neu-Isenburg, Germany
| | - C Sotiriou
- Department of Medical Oncology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels
| | - G Viale
- Department of Pathology, Istituto Europeo di Oncologia, University of Milan, Milan, Italy
| | - S Badve
- Department of Pathology and Laboratory Medicine, Indiana University, Indianapolis, USA
| | - S Adams
- Perlmutter Cancer Center, New York University Medical School, New York, USA
| | - K Willard-Gallo
- Molecular Immunology Unit, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - S Loi
- Division of Research and Cancer Medicine, Peter MacCallum Cancer Centre, University of Melbourne, Victoria, Australia
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Liu S, Foulkes WD, Leung S, Gao D, Lau S, Kos Z, Nielsen TO. Prognostic significance of FOXP3+ tumor-infiltrating lymphocytes in breast cancer depends on estrogen receptor and human epidermal growth factor receptor-2 expression status and concurrent cytotoxic T-cell infiltration. Breast Cancer Res 2014; 16:432. [PMID: 25193543 PMCID: PMC4303113 DOI: 10.1186/s13058-014-0432-8] [Citation(s) in RCA: 150] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Accepted: 08/22/2014] [Indexed: 01/14/2023] Open
Abstract
Introduction The infiltration of FOXP3+ regulatory T cells into invasive tumors has been reported to be associated with survival in a variety of cancers. The prognostic significance of FOXP3+ tumor-infiltrating lymphocytes (TILs) in breast cancer, however, remains controversial. Methods FOXP3+ TILs were assessed by immunohistochemistry on tissue microarrays constructed from a well-defined cohort of 3,992 breast cancer patients linked to detailed demographic, biomarker, treatment and outcome data. Survival analyses were performed using the Kaplan-Meier function and Cox proportional hazards regression models to evaluate the association of FOXP3+ TILs with breast cancer-specific survival, stratified by intrinsic subtype and cytotoxic T-cell infiltration status (as defined by CD8 immunohistochemistry). Results The presence of high numbers of FOXP3+ TILs was significantly associated with young age, high grade, estrogen receptor (ER) negativity, concurrent CD8+ cytotoxic T-cell infiltration, and human epidermal growth factor receptor-2 positive (HER2+)/ER+ and core basal subtypes. On multivariate survival analysis, a high level of FOXP3+ TILs was significantly associated with poor survival in ER+ breast cancers that lacked CD8+ T-cell infiltrates (hazard ratio (HR) = 1.30, 95% confidence interval (CI) = 1.02 to 1.66). However, in ER+ breast cancers, FOXP3+ TILs were strongly associated with improved survival in the HER2+/ER+ subgroup, particularly in those with co-existent CD8+ T-cell infiltrates (HR = 0.48, 95% CI = 0.23 to 0.98), for which the presence of high levels of FOXP3+ TILs was independent of standard clinical prognostic factors. Conclusions FOXP3+ regulatory TILs are a poor prognostic indicator in ER+ breast cancer, but a favorable prognostic factor in the HER2+/ER+ subtype. The prognostic value of FOXP3+ TILs in breast cancer differs depending on ER and HER2 expression status and CD8+ T-cell infiltration. Electronic supplementary material The online version of this article (doi:10.1186/s13058-014-0432-8) contains supplementary material, which is available to authorized users.
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Heimrath OP, Kos Z, Belanger EC, Cagiannos I, Morash C, Gerridzen RG, Lavallée LT, Preston MA, Witiuk K, Breau RH. Predicting the Gleason sum of a patient with a prostate biopsy core Gleason ≤7 and a prostate biopsy core Gleason ≥8. Can Urol Assoc J 2014; 8:E476-80. [PMID: 25132892 DOI: 10.5489/cuaj.1737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
INTRODUCTION We review a subset of men who had discordant prostate biopsy sums and were treated with radical prostatectomy. METHODS Consecutive patients treated with radical prostatectomy at The Ottawa Hospital between 2000 and 2012 were reviewed. Those with at least 1 prostate biopsy core of Gleason sum ≥8 and at least 1 prostate biopsy core of Gleason sum ≤7 cancer were included. RESULTS Of the 764 radical prostatectomies, 661 (87%) were eligible for the study and 35 (5%) met inclusion criteria. Of these, only 16 (46%) had prostatectomy Gleason sum of ≥8. When the highest biopsy core was Gleason sum 8 (n = 24), only 7 (29%) had a prostatectomy Gleason sum ≥8. When the highest biopsy core was Gleason 9 (n = 11), 9 (82%) had a prostatectomy Gleason sum ≥8 (relative risk [RR] 2.8; p = 0.004). Patients with clinical T3 tumours were at higher risk of Gleason sum ≥8 compared to cT1 patients (RR 3.7; p = 0.008). Patient age (p = 0.89), preoperative prostate-specific antigen (p = 0.34), prostate volume (p = 0.86), number of biopsy cores (p = 0.18), and proportion of biopsy cores with cancer (p = 0.96) were not strongly associated with risk of prostatectomy Gleason sum ≥8. CONCLUSION These data should be considered when assigning patients into prognostic risk categories based on prostate biopsy information. Further study to verify our findings using larger samples is warranted.
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Affiliation(s)
- Olivier P Heimrath
- University of Ottawa, Ottawa, ON; ; Division of Urology, Department of Surgery, McGill University, Montreal, QC
| | - Zuzana Kos
- University of Ottawa, Ottawa, ON; ; Division of Anatomical Pathology, Department of Pathology and Laboratory Medicine, The Ottawa Hospital, Ottawa, ON
| | - Eric C Belanger
- University of Ottawa, Ottawa, ON; ; Division of Anatomical Pathology, Department of Pathology and Laboratory Medicine, The Ottawa Hospital, Ottawa, ON
| | - Ilias Cagiannos
- University of Ottawa, Ottawa, ON; ; Division of Urology, Department of Surgery, The Ottawa Hospital, Ottawa, ON
| | - Chris Morash
- University of Ottawa, Ottawa, ON; ; Division of Urology, Department of Surgery, The Ottawa Hospital, Ottawa, ON
| | - Ronald G Gerridzen
- University of Ottawa, Ottawa, ON; ; Division of Urology, Department of Surgery, The Ottawa Hospital, Ottawa, ON
| | - Luke T Lavallée
- University of Ottawa, Ottawa, ON; ; Division of Urology, Department of Surgery, The Ottawa Hospital, Ottawa, ON
| | - Mark A Preston
- Department of Urology, Massachusetts General Hospital, Boston, MA
| | | | - Rodney H Breau
- University of Ottawa, Ottawa, ON; ; Division of Urology, Department of Surgery, The Ottawa Hospital, Ottawa, ON; ; Ottawa Hospital Research Institute, Ottawa, ON
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Abstract
When treatment decisions are based purely on clinicopathological factors, many women with estrogen receptor-positive/human epidermal growth factor receptor 2-negative cancers are overtreated. Gene expression profiles are valuable clinical tools that stratify the recurrence risk to identify patients most likely to benefit from adjuvant systemic therapies. Building upon greater understanding of tumor biology and more rigorous approaches to validation (including independent studies with a high level of evidence), several second-generation multigene tests have been developed. In the previous issue, Martin and colleagues report the third clinical validation study for EndoPredict, a distributed assay to assess risk of distant recurrences in estrogen receptor-positive/human epidermal growth factor receptor 2-negative women. The authors confirm the assay's independent prognostic value in premenopausal and postmenopausal, node-positive women treated with contemporary chemotherapy followed by endocrine therapy. EndoPredict did not, however, predict benefit from adding paclitaxel. Predictive signatures for selecting among chemotherapy regimens remain an area needing further development.
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Affiliation(s)
- Zuzana Kos
- Department of Laboratory Medicine and Pathobiology, University of Toronto, 1 King's College Circle, Toronto, ON M5S 1A8, Canada.
| | - Torsten O Nielsen
- Genetic Pathology Evaluation Centre, Department of Pathology and Laboratory Medicine, University of British Columbia, 2660 Oak Street, Vancouver, BC, V6H 3Z6, Canada.
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Kos Z, Williams PA, Belanger EC, Mai KT. Fluorescence in situ hybridization as an adjunct tool in the diagnosis of primary and metastatic renal cell carcinoma in fine needle aspiration specimens. Diagn Cytopathol 2014; 42:1013-23. [DOI: 10.1002/dc.23154] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 03/13/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Zuzana Kos
- Pathology and Laboratory Medicine; The Ottawa Hospital and University of Ottawa; Ottawa Ontario Canada
| | - Phillip A. Williams
- Pathology and Laboratory Medicine; The Ottawa Hospital and University of Ottawa; Ottawa Ontario Canada
| | - Eric C. Belanger
- Pathology and Laboratory Medicine; The Ottawa Hospital and University of Ottawa; Ottawa Ontario Canada
| | - Kien T. Mai
- Pathology and Laboratory Medicine; The Ottawa Hospital and University of Ottawa; Ottawa Ontario Canada
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Mai KT, Ball CG, Kos Z, Belanger EC, Islam S, Sekhon H. Three-dimensional cell groups with disordered nuclei and cellular discohesion (3DDD) are associated with high sensitivity and specificity for cystoscopic urine cytopathological diagnosis of low-grade urothelial neoplasia. Diagn Cytopathol 2013; 42:555-63. [PMID: 24273035 DOI: 10.1002/dc.23069] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Revised: 09/17/2013] [Accepted: 10/10/2013] [Indexed: 11/06/2022]
Abstract
Cystoscopic urine obtained before the resection of low-grade urothelial carcinoma (LGUC), with adequate cytological sampling of the tumor, frequently revealed the presence of three-dimensional cell groups with disordered nuclei and cellular discohesion (3DDD). 936 cystoscopic urine specimens were categorized into five groups: Group 1 (80 specimens) with biopsy-proven LGUC within 6 months of cytologic examination, Group 2 (23 specimens) with biopsy proven LGUC within 6 to 36 months of cytologic examination, Group 3 (527 specimens) with a history of LGUC but no tumor for a period of greater than 3 years, Group 4 (300 specimens) with no association with LGUC, and Group 5 (6 specimens) with urinary lithiasis. Specimens with scant cellularity accounted for 20% of those in Group 1. For 3DDD in detecting LGUC in adequate cystoscopic urine, the sensitivity was 70%, specificity was 94%. Two- or three-dimensional cell groups with ordered nuclei and/or cellular non-discohesion were often seen in specimens from Groups 4 or 5. The 3DDD was present in a significant number of cases with concurrent negative cystoscopic findings but also positive LGUC in ensuing follow-up. In these cases, 3DDD with or without tumor identified at concurrent cystoscopy were found to be morphologically similar. Furthermore, the presence of 3DDD in 8% of Group 3 likely represents urothelial dysplasia that is not cystoscopically detectable. The high specificity and sensitivity of 3DDD is demonstrated. These findings are consistent with the decreased cell adhesion and disordered nuclear arrangement of low grade urothelial neoplasia.
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Affiliation(s)
- Kien T Mai
- Department of Pathology and Laboratory Medicine, The Ottawa Hospital and University of Ottawa, Ontario, Canada
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Kos Z, Robertson SJ, Purgina BM, Verma S, Gravel DH. Malignant peripheral nerve sheath tumor arising in a traumatic neuroma: a case report. Hum Pathol 2013; 44:2360-4. [DOI: 10.1016/j.humpath.2013.02.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Revised: 02/26/2013] [Accepted: 02/28/2013] [Indexed: 11/29/2022]
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Kos Z, Burns BF, Gomes MM, Sekhon HS. A Rare Case of Anaplastic Variant of Diffuse Large B-Cell Lymphoma Presenting as a Lung Primary. Int J Surg Pathol 2013; 22:167-71. [DOI: 10.1177/1066896913491318] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Primary pulmonary lymphoma is an uncommon neoplastic disorder representing approximately 0.5% to 1% of primary pulmonary malignancies. The vast majority are of low-grade, mucosa-associated lymphoid tissue type. Primary diffuse large B-cell lymphoma of the lung is rare, though cases of the centroblastic and immunoblastic variants have been described. We present herein an interesting case of an 80-year-old man who presented with both respiratory and constitutional symptoms and was found to have a 4.5 cm left hilar mass with bilateral hilar and mediastinal lymphadenopathy on imaging. Endobronchial biopsy revealed an aggressive large cell lymphoma, with scattered large, bizarre-shaped nuclei resembling Reed–Sternberg cells, positive for CD20, PAX5, CD30, and MUM-1, consistent with an anaplastic variant of diffuse large B-cell lymphoma. Imaging showed no evidence of extrathoracic disease. Standard treatment with cyclophosphamide/vincristine/prednisone and rituximab resulted in significant clinical and radiological response and the patient remains in remission 21 months later. To the best of our knowledge, this modified Ann Arbor stage II2E primary pulmonary lymphoma, is the first description in the English literature of anaplastic variant of diffuse large B-cell lymphoma presenting as a lung primary.
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Affiliation(s)
- Zuzana Kos
- University of Ottawa, Ottawa, Ontario, Canada
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Abstract
1. The effect of high concentrations of L-ascorbic acid on the growth of some human and animal transformed and non-transformed cell lines has been investigated. Directly implemented into culture of transformed cell lines it decreased [3H]thymidine, [3H]uridine and [3H]leucine incorporation into cells. Vitamin C inhibited DNA synthesis by transformed cells 3-4 times more efficiently than by normal cells. 2. In vivo treatment of athymic nude mice bearing human mammary carcinoma with 500 mg/kg L-ascorbic acid for the first 15 days markedly inhibited the growth of tumor cells. 3. As determined by alkaline elution, both DNA strand breaks and DNA cross links were observed in mammary carcinoma cells treated with vitamin C. DNA-DNA and DNA-protein cross links in cells treated with L-ascorbic acid were revealed by the proteinase K assay. Removal of vitamin C caused an immediate onset of spontaneous repair of single or double stranded DNA breaks. If, however, vitamin was reintroduced into cell culture, this spontaneous repair was reversed. 4. Our results indicate an antimetabolic activity of L-ascorbic acid in human and animal transformed cells, probably due to lethal damages in DNA.
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Affiliation(s)
- K Pavelić
- Rudjer Bosković Institute, Zagreb, Yugoslavia
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Kos Z, Pavelić L, Pekić B, Pavelić K. Reversal of human myeloid leukemia cells into normal granulocytes and macrophages: activity and intracellular distribution of catalase. Oncology 1987; 44:245-7. [PMID: 3475645 DOI: 10.1159/000226487] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The activity and intracellular distribution of catalase was studied in culture human myeloid leukemia cells before and after induction of differentiation with tunicamycin. Activity of catalase was increased 5-fold in acute myeloid leukemia cells (AML) and 3-fold in chronic myeloid leukemia cells in comparison with normal granulocytes. Tunicamycin induced differentiation of HL-60 line and primary AML line characterized by increase in phagocytic cells and changes to resemble mature myeloid cells. Fc receptors were also induced in cells after tunicamycin treatment. Induction of differentiation with tunicamycin decreased high activity of catalase in cultured leukemic cells. The results of digitonin titration experiments showed that in control granulocytes and differentiated leukemic cells most of the catalase activity is present in subcellular particles distinct from mitochondria or lysosomes. In contrast, the catalase activity in undifferentiated cells is present in the same compartment as the other cytosolic markers.
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MESH Headings
- Catalase/metabolism
- Cell Differentiation/drug effects
- Cell Line
- Cell Transformation, Neoplastic/drug effects
- Digitonin/pharmacology
- Granulocytes/drug effects
- Humans
- Leukemia, Myeloid/enzymology
- Leukemia, Myeloid/immunology
- Leukemia, Myeloid/pathology
- Leukemia, Myeloid, Acute/enzymology
- Leukemia, Myeloid, Acute/immunology
- Leukemia, Myeloid, Acute/pathology
- Macrophages
- Phagocytosis/drug effects
- Receptors, Fc/analysis
- Tunicamycin/pharmacology
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