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Santi I, Vellekoop H, M Versteegh M, A Huygens S, Dinjens WNM, Mölken MRV. Estimating the Prognostic Value of the NTRK Fusion Biomarker for Comparative Effectiveness Research in The Netherlands. Mol Diagn Ther 2024; 28:319-328. [PMID: 38616205 PMCID: PMC11068666 DOI: 10.1007/s40291-024-00704-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2024] [Indexed: 04/16/2024]
Abstract
OBJECTIVES We evaluated the prognostic value of the neurotrophic tyrosine receptor kinase (NTRK) gene fusions by comparing the survival of patients with NTRK+ tumours with patients without NTRK+ tumours. METHODS We used genomic and clinical registry data from the Center for Personalized Cancer Treatment (CPCT-02) study containing a cohort of cancer patients who were treated in Dutch clinical practice between 2012 and 2020. We performed a propensity score matching analysis, where NTRK+ patients were matched to NTRK- patients in a 1:4 ratio. We subsequently analysed the survival of the matched sample of NTRK+ and NTRK- patients using the Kaplan-Meier method and Cox regression, and performed an analysis of credibility to evaluate the plausibility of our result. RESULTS Among 3556 patients from the CPCT-02 study with known tumour location, 24 NTRK+ patients were identified. NTRK+ patients were distributed across nine different tumour types: bone/soft tissue, breast, colorectal, head and neck, lung, pancreas, prostate, skin and urinary tract. NTRK fusions involving the NTRK3 gene (46%) and NTRK1 gene (33%) were most common. The survival analysis rendered a hazard ratio (HR) of 1.44 (95% CI 0.81-2.55) for NTRK+ patients. Using the point estimates of three prior studies on the prognostic value of NTRK fusions, our finding that the HR is > 1 was deemed plausible. CONCLUSIONS NTRK+ patients may have an increased risk of death compared with NTRK- patients. When using historic control data to assess the comparative effectiveness of TRK inhibitors, the prognostic value of the NTRK fusion biomarker should therefore be accounted for.
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Affiliation(s)
- Irene Santi
- Institute for Medical Technology Assessment, Erasmus University Rotterdam, Burgemeester Oudlaan 50, 3062 PA, Rotterdam, The Netherlands.
| | - Heleen Vellekoop
- Institute for Medical Technology Assessment, Erasmus University Rotterdam, Burgemeester Oudlaan 50, 3062 PA, Rotterdam, The Netherlands
| | - Matthijs M Versteegh
- Institute for Medical Technology Assessment, Erasmus University Rotterdam, Burgemeester Oudlaan 50, 3062 PA, Rotterdam, The Netherlands
| | - Simone A Huygens
- Institute for Medical Technology Assessment, Erasmus University Rotterdam, Burgemeester Oudlaan 50, 3062 PA, Rotterdam, The Netherlands
| | - Winand N M Dinjens
- Department of Pathology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Maureen Rutten-van Mölken
- Institute for Medical Technology Assessment, Erasmus University Rotterdam, Burgemeester Oudlaan 50, 3062 PA, Rotterdam, The Netherlands
- School of Health Policy and Management, Erasmus University Rotterdam, Rotterdam, The Netherlands
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2
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Bourgeau M, Gardner JM. Immunohistochemistry Update in Dermatopathology and Bone and Soft Tissue Pathology. Arch Pathol Lab Med 2024; 148:284-291. [PMID: 37535665 DOI: 10.5858/arpa.2023-0033-ra] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2023] [Indexed: 08/05/2023]
Abstract
CONTEXT.— Immunohistochemistry plays an important role in dermatopathology, particularly for melanocytic lesions and poorly differentiated malignancies. In the field of bone and soft tissue pathology, molecular methods remain the gold standard for diagnosis; however, immunohistochemistry targeting underlying molecular alterations represents a valuable screening tool, especially in areas with limited access to molecular testing. OBJECTIVE.— To describe the utility and limitations of new and emerging immunohistochemical stains in the diagnosis of skin, soft tissue, and bone tumors. DATA SOURCES.— A literature review of recently described immunohistochemical stains in the fields of dermatopathology and bone and soft tissue pathology was performed. CONCLUSIONS.— Immunohistochemistry is an important adjunctive tool for select entities in dermatopathology and bone and soft tissue pathology, and it provides pathologists with valuable evidence of their behavior, underlying molecular alterations, and line of differentiation. Furthermore, immunostains targeting molecular abnormalities have the potential to replace current molecular methods. Many of these recently described stains demonstrate higher sensitivity and specificity; however, limitations and pitfalls still exist, and correlation with morphologic and clinical findings remains essential for diagnosis.
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Affiliation(s)
- Melanie Bourgeau
- the Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia (Bourgeau)
| | - Jerad M Gardner
- From the Department of Laboratory Medicine, Geisinger Medical Center, Danville, Pennsylvania (Gardner)
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3
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Hernandez S, Conde E, Molero A, Suarez-Gauthier A, Martinez R, Alonso M, Plaza C, Camacho C, Chantada D, Juaneda-Magdalena L, Garcia-Toro E, Saiz-Lopez P, Rojo F, Abad M, Boni V, Del Carmen S, Regojo RM, Sanchez-Frias ME, Teixido C, Paz-Ares L, Lopez-Rios F. Efficient Identification of Patients With NTRK Fusions Using a Supervised Tumor-Agnostic Approach. Arch Pathol Lab Med 2024; 148:318-326. [PMID: 37270803 DOI: 10.5858/arpa.2022-0443-oa] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2023] [Indexed: 06/06/2023]
Abstract
CONTEXT.— The neurotrophic tropomyosin receptor kinase (NTRK) family gene rearrangements have been recently incorporated as predictive biomarkers in a "tumor-agnostic" manner. However, the identification of these patients is extremely challenging because the overall frequency of NTRK fusions is below 1%. Academic groups and professional organizations have released recommendations on the algorithms to detect NTRK fusions. The European Society for Medical Oncology proposal encourages the use of next-generation sequencing (NGS) if available, or alternatively immunohistochemistry (IHC) could be used for screening with NGS confirmation of all positive IHC results. Other academic groups have included histologic and genomic information in the testing algorithm. OBJECTIVE.— To apply some of these triaging strategies for a more efficient identification of NTRK fusions within a single institution, so pathologists can gain practical insight on how to start looking for NTRK fusions. DESIGN.— A multiparametric strategy combining histologic (secretory carcinomas of the breast and salivary gland; papillary thyroid carcinomas; infantile fibrosarcoma) and genomic (driver-negative non-small cell lung carcinomas, microsatellite instability-high colorectal adenocarcinomas, and wild-type gastrointestinal stromal tumors) triaging was put forward. RESULTS.— Samples from 323 tumors were stained with the VENTANA pan-TRK EPR17341 Assay as a screening method. All positive IHC cases were simultaneously studied by 2 NGS tests, Oncomine Comprehensive Assay v3 and FoundationOne CDx. With this approach, the detection rate of NTRK fusions was 20 times higher (5.57%) by only screening 323 patients than the largest cohort in the literature (0.30%) comprising several hundred thousand patients. CONCLUSIONS.— Based on our findings, we propose a multiparametric strategy (ie, "supervised tumor-agnostic approach") when pathologists start searching for NTRK fusions.
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Affiliation(s)
- Susana Hernandez
- From the Department of Pathology, 12 de Octubre University Hospital, Research Institute 12 de Octubre University Hospital (i+12), Madrid, Spain (Hernandez, Alonso)
| | - Esther Conde
- the Department of Pathology, 12 de Octubre University Hospital, Universidad Complutense de Madrid, Research Institute 12 de Octubre University Hospital (i+12), CIBERONC, Madrid, Spain (Conde, Lopez-Rios)
| | - Aida Molero
- the Department of Pathology, Segovia General Hospital, Segovia, Spain (Molero)
| | - Ana Suarez-Gauthier
- the Department of Pathology, Jimenez Diaz Foundation University Hospital, Madrid, Spain (Suarez-Gauthier)
| | - Rebeca Martinez
- the Department of Pathology, Health Diagnostic-Grupo Quiron Salud, Madrid, Spain (Martinez)
| | - Marta Alonso
- From the Department of Pathology, 12 de Octubre University Hospital, Research Institute 12 de Octubre University Hospital (i+12), Madrid, Spain (Hernandez, Alonso)
| | - Carlos Plaza
- the Department of Pathology, Clinico San Carlos University Hospital, Madrid, Spain (Plaza)
| | - Carmen Camacho
- the Department of Pathology, Insular Materno-Infantil University Hospital, Las Palmas de Gran Canaria, Spain (Camacho)
| | - Debora Chantada
- the Department of Pathology, Alvaro Cunqueiro Hospital, Vigo, Spain (Chantada, Juaneda-Magdalena)
| | - Laura Juaneda-Magdalena
- the Department of Pathology, Alvaro Cunqueiro Hospital, Vigo, Spain (Chantada, Juaneda-Magdalena)
| | - Enrique Garcia-Toro
- the Department of Pathology, Burgos University Hospital, Burgos, Spain (Garcia-Toro, Saiz-Lopez)
| | - Patricia Saiz-Lopez
- the Department of Pathology, Burgos University Hospital, Burgos, Spain (Garcia-Toro, Saiz-Lopez)
| | - Federico Rojo
- the Institute of Health Research-Jimenez Diaz Foundation, CIBERONC, Madrid, Spain (Rojo)
| | - Mar Abad
- the Department of Pathology, Salamanca University Hospital, Salamanca, Spain (Abad)
| | - Valentina Boni
- NEXT Oncology Madrid, Quiron Salud Madrid University Hospital, Madrid, Spain (Boni)
| | - Sofia Del Carmen
- the Department of Pathology, Marques de Valdecilla University Hospital, Santander, Spain (del Carmen)
| | - Rita Maria Regojo
- the Department of Pathology, La Paz University Hospital, Madrid, Spain (Regojo)
| | | | - Cristina Teixido
- the Department of Pathology, Thoracic Oncology Unit, Hospital Clínic of Barcelona, University of Barcelona, Barcelona, Spain (Teixido)
| | - Luis Paz-Ares
- the Department of Oncology, 12 de Octubre University Hospital, Department of Medicine, Universidad Complutense de Madrid, Research Institute 12 de Octubre University Hospital (i+12), CIBERONC, Madrid, Spain (Paz-Ares)
| | - Fernando Lopez-Rios
- the Department of Pathology, 12 de Octubre University Hospital, Universidad Complutense de Madrid, Research Institute 12 de Octubre University Hospital (i+12), CIBERONC, Madrid, Spain (Conde, Lopez-Rios)
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Zhang W, Schmitz AA, Kallionpää RE, Perälä M, Pitkänen N, Tukiainen M, Alanne E, Jöhrens K, Schulze-Rath R, Farahmand B, Zong J. Neurotrophic-tyrosine receptor kinase gene fusion in papillary thyroid cancer: A clinicogenomic biobank and record linkage study from Finland. Oncotarget 2024; 15:106-116. [PMID: 38329731 PMCID: PMC10852057 DOI: 10.18632/oncotarget.28555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 12/28/2023] [Indexed: 02/09/2024] Open
Abstract
Selective tropomyosin receptor kinase (TRK) inhibitors are approved targeted therapies for patients with solid tumors harboring a neurotrophic tyrosine receptor kinase (NTRK) gene fusion. Country-specific estimates of NTRK gene fusion frequency, and knowledge on the characteristics of affected patients, are limited. We identified patients with histologically-confirmed papillary thyroid cancer (PTC) from Finland's Auria Biobank. TRK protein expression was determined by pan-TRK immunohistochemistry. Immuno-stained tumor samples were scored by a certified pathologist. Gene fusions and other co-occurring gene alterations were identified by next generation sequencing. Patient characteristics and vital status were determined from linked hospital electronic health records (EHRs). Patients were followed from 1 year before PTC diagnosis until death. 6/389 (1.5%) PTC patients had an NTRK gene fusion (all NTRK3); mean age 43.8 years (and none had comorbidities) at PTC diagnosis. Gene fusion partners were EML4 (n = 3), ETV6 (n = 2), and RBPMS (n = 1). Of 3/6 patients with complete EHRs, all received radioactive iodine ablation only and were alive at end of follow-up (median observation, 9.12 years). In conclusion, NTRK gene fusion is infrequent in patients with PTC. Linkage of biobank samples to EHRs is feasible in describing the characteristics and outcomes of patients with PTC and potentially other cancer types.
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Affiliation(s)
- Wei Zhang
- Bayer HealthCare Pharmaceuticals Inc, Whippany, NJ 07981, USA
| | | | - Roosa E. Kallionpää
- Auria Biobank, Turku University Hospital, University of Turku, Turku, Finland
| | - Merja Perälä
- Auria Biobank, Turku University Hospital, University of Turku, Turku, Finland
| | - Niina Pitkänen
- Auria Biobank, Turku University Hospital, University of Turku, Turku, Finland
| | - Mikko Tukiainen
- Auria Biobank, Turku University Hospital, University of Turku, Turku, Finland
| | - Erika Alanne
- Department of Oncology and Radiotherapy, Turku University Hospital, Turku, Finland
- Western Finland Cancer Centre, Turku, Finland
| | - Korinna Jöhrens
- Dresden University Hospital, Technical University Dresden, Dresden, Germany
| | | | | | - Jihong Zong
- Bayer HealthCare Pharmaceuticals Inc, Whippany, NJ 07981, USA
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5
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Hyrcza MD, Martins-Filho SN, Spatz A, Wang HJ, Purgina BM, Desmeules P, Park PC, Bigras G, Jung S, Cutz JC, Xu Z, Berman DM, Sheffield BS, Cheung CC, Leduc C, Hwang DM, Ionescu D, Klonowski P, Chevarie-Davis M, Chami R, Lo B, Stockley TL, Tsao MS, Torlakovic E. Canadian Multicentric Pan-TRK (CANTRK) Immunohistochemistry Harmonization Study. Mod Pathol 2024; 37:100384. [PMID: 37972928 DOI: 10.1016/j.modpat.2023.100384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 10/19/2023] [Accepted: 11/09/2023] [Indexed: 11/19/2023]
Abstract
Tumor-agnostic testing for NTRK1-3 gene rearrangements is required to identify patients who may benefit from TRK inhibitor therapies. The overarching objective of this study was to establish a high-quality pan-TRK immunohistochemistry (IHC) screening assay among 18 large regional pathology laboratories across Canada using pan-TRK monoclonal antibody clone EPR17341 in a ring study design. TRK-fusion positive and negative tumor samples were collected from participating sites, with fusion status confirmed by panel next-generation sequencing assays. Each laboratory received: (1) unstained sections from 30 cases of TRK-fusion-positive or -negative tumors, (2) 2 types of reference standards: TRK calibrator slides and IHC critical assay performance controls (iCAPCs), (3) EPR17341 antibody, and (4) suggestions for developing IHC protocols. Participants were asked to optimize the IHC protocol for their instruments and detection systems by using iCAPCs, to stain the 30 study cases, and to report the percentage scores for membranous, cytoplasmic, and nuclear staining. TRK calibrators were used to assess the analytical sensitivity of IHC protocols developed by using the 2 reference standards. Fifteen of 18 laboratories achieved diagnostic sensitivity of 100% against next-generation sequencing. The diagnostic specificity ranged from 40% to 90%. The results did not differ significantly between positive scores based on the presence of any type of staining vs the presence of overall staining in ≥1% of cells. The median limit of detection measured by TRK calibrators was 76,000 molecules/cell (range 38,000 to >200,000 molecules/cell). Three different patterns of staining were observed in 19 TRK-positive cases, cytoplasmic-only in 7 samples, nuclear and cytoplasmic in 9 samples, and cytoplasmic and membranous in 3 samples. The Canadian multicentric pan-TRK study illustrates a successful strategy to accelerate the multicenter harmonization and implementation of pan-TRK immunohistochemical screening that achieves high diagnostic sensitivity by using laboratory-developed tests where laboratories used centrally developed reference materials. The measurement of analytical sensitivity by using TRK calibrators provided additional insights into IHC protocol performance.
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Affiliation(s)
- Martin D Hyrcza
- Department of Pathology and Laboratory Medicine, University of Calgary, Arnie Charbonneau Cancer Institute, Calgary, Alberta, Canada
| | - Sebastiao N Martins-Filho
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada; University Health Network, Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Alan Spatz
- McGill University Health Center, Lady Davis Institute, McGill University, Montreal, Quebec, Canada
| | - Han-Jun Wang
- McGill University Health Center, Lady Davis Institute, McGill University, Montreal, Quebec, Canada
| | - Bibianna M Purgina
- Department of Pathology and Laboratory Medicine, Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | - Patrice Desmeules
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec City, Quebec, Canada
| | - Paul C Park
- Shared Health, Department of Pathology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Gilbert Bigras
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada
| | - Sungmi Jung
- Department of Pathology, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
| | - Jean-Claude Cutz
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Zhaolin Xu
- Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - David M Berman
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada
| | - Brandon S Sheffield
- Department of Pathology, William Osler Health System, Brampton, Ontario, Canada
| | - Carol C Cheung
- University Health Network, Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Charles Leduc
- Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - David M Hwang
- Department of Laboratory Medicine and Pathobiology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Diana Ionescu
- Department of Pathology and Laboratory Medicine, British Columbia Cancer Agency, University of British Columbia, Vancouver, British Columbia, Canada
| | - Paul Klonowski
- Department of Pathology and Laboratory Medicine, University of Calgary Cumming School of Medicine Diagnostic and Scientific Centre, Calgary, Alberta, Canada
| | - Myriam Chevarie-Davis
- Département de Pathologie et Biologie Cellulaire, Hôpital Maisonneuve-Rosemont, Université de Montréal, Montreal, Quebec, Canada
| | - Rose Chami
- Department of Laboratory Medicine and Pathobiology, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Bryan Lo
- Department of Pathology and Laboratory Medicine, Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | - Tracy L Stockley
- University Health Network, Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Ming-Sound Tsao
- University Health Network, Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Emina Torlakovic
- Department of Pathology and Laboratory Medicine, Royal University Hospital, Saskatchewan Health Authority, and College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
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6
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Conde E, Hernandez S, Alonso M, Lopez-Rios F. Pan-TRK Immunohistochemistry to Optimize the Detection of NTRK Fusions: Removing the Hay When Looking for the Needle. Mod Pathol 2023; 36:100346. [PMID: 37757968 DOI: 10.1016/j.modpat.2023.100346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/17/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023]
Affiliation(s)
- Esther Conde
- Pathology Department, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Research Institute Hospital 12 de Octubre (i+12), CIBERONC, Madrid, Spain
| | - Susana Hernandez
- Pathology Department, Hospital Universitario 12 de Octubre, Research Institute Hospital 12 de Octubre (i+12), Madrid, Spain
| | - Marta Alonso
- Pathology Department, Hospital Universitario 12 de Octubre, Research Institute Hospital 12 de Octubre (i+12), Madrid, Spain
| | - Fernando Lopez-Rios
- Pathology Department, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Research Institute Hospital 12 de Octubre (i+12), CIBERONC, Madrid, Spain.
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7
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Vargas J, Pantouris G. Analysis of CD74 Occurrence in Oncogenic Fusion Proteins. Int J Mol Sci 2023; 24:15981. [PMID: 37958963 PMCID: PMC10650716 DOI: 10.3390/ijms242115981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 10/24/2023] [Accepted: 10/31/2023] [Indexed: 11/15/2023] Open
Abstract
CD74 is a type II cell surface receptor found to be highly expressed in several hematological and solid cancers, due to its ability to activate pathways associated with tumor cell survival and proliferation. Over the past 16 years, CD74 has emerged as a commonly detected fusion partner in multiple oncogenic fusion proteins. Studies have found CD74 fusion proteins in a range of cancers, including lung adenocarcinoma, inflammatory breast cancer, and pediatric acute lymphoblastic leukemia. To date, there are five known CD74 fusion proteins, CD74-ROS1, CD74-NTRK1, CD74-NRG1, CD74-NRG2α, and CD74-PDGFRB, with a total of 16 different variants, each with unique genetic signatures. Importantly, the occurrence of CD74 in the formation of fusion proteins has not been well explored despite the fact that ROS1 and NRG1 families utilize CD74 as the primary partner for the formation of oncogenic fusions. Fusion proteins known to be oncogenic drivers, including those of CD74, are typically detected and targeted after standard chemotherapeutic plans fail and the disease relapses. The analysis reported herein provides insights into the early intervention of CD74 fusions and highlights the need for improved routine assessment methods so that targeted therapies can be applied while they are most effective.
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Affiliation(s)
| | - Georgios Pantouris
- Department of Chemistry, University of the Pacific, Stockton, CA 95211, USA;
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8
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Romanko AA, Mulkidjan RS, Tiurin VI, Saitova ES, Preobrazhenskaya EV, Krivosheyeva EA, Mitiushkina NV, Shestakova AD, Belogubova EV, Ivantsov AO, Iyevleva AG, Imyanitov EN. Cost-Efficient Detection of NTRK1/2/3 Gene Fusions: Single-Center Analysis of 8075 Tumor Samples. Int J Mol Sci 2023; 24:14203. [PMID: 37762506 PMCID: PMC10531831 DOI: 10.3390/ijms241814203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/26/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
The majority of NTRK1, NTRK2, and NTRK3 rearrangements result in increased expression of the kinase portion of the involved gene due to its fusion to an actively transcribed gene partner. Consequently, the analysis of 5'/3'-end expression imbalances is potentially capable of detecting the entire spectrum of NTRK gene fusions. Archival tumor specimens obtained from 8075 patients were subjected to manual dissection of tumor cells, DNA/RNA isolation, and cDNA synthesis. The 5'/3'-end expression imbalances in NTRK genes were analyzed by real-time PCR. Further identification of gene rearrangements was performed by variant-specific PCR for 44 common NTRK fusions, and, whenever necessary, by RNA-based next-generation sequencing (NGS). cDNA of sufficient quality was obtained in 7424/8075 (91.9%) tumors. NTRK rearrangements were detected in 7/6436 (0.1%) lung carcinomas, 11/137 (8.0%) pediatric tumors, and 13/851 (1.5%) adult non-lung malignancies. The highest incidence of NTRK translocations was observed in pediatric sarcomas (7/39, 17.9%). Increased frequency of NTRK fusions was seen in microsatellite-unstable colorectal tumors (6/48, 12.5%), salivary gland carcinomas (5/93, 5.4%), and sarcomas (7/143, 4.9%). None of the 1293 lung carcinomas with driver alterations in EGFR/ALK/ROS1/RET/MET oncogenes had NTRK 5'/3'-end expression imbalances. Variant-specific PCR was performed for 744 tumors with a normal 5'/3'-end expression ratio: there were no rearrangements in 172 EGFR/ALK/ROS1/RET/MET-negative lung cancers and 125 pediatric tumors, while NTRK3 fusions were detected in 2/447 (0.5%) non-lung adult malignancies. In conclusion, this study describes a diagnostic pipeline that can be used as a cost-efficient alternative to conventional methods of NTRK1-3 analysis.
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Affiliation(s)
- Aleksandr A. Romanko
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St.-Petersburg, Russia (V.I.T.)
| | - Rimma S. Mulkidjan
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St.-Petersburg, Russia (V.I.T.)
| | - Vladislav I. Tiurin
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St.-Petersburg, Russia (V.I.T.)
| | - Evgeniya S. Saitova
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St.-Petersburg, Russia (V.I.T.)
| | - Elena V. Preobrazhenskaya
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St.-Petersburg, Russia (V.I.T.)
- Department of Medical Genetics, St.-Petersburg Pediatric Medical University, 194100 St.-Petersburg, Russia
| | - Elena A. Krivosheyeva
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St.-Petersburg, Russia (V.I.T.)
| | - Natalia V. Mitiushkina
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St.-Petersburg, Russia (V.I.T.)
| | - Anna D. Shestakova
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St.-Petersburg, Russia (V.I.T.)
| | - Evgeniya V. Belogubova
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St.-Petersburg, Russia (V.I.T.)
| | - Alexandr O. Ivantsov
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St.-Petersburg, Russia (V.I.T.)
| | - Aglaya G. Iyevleva
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St.-Petersburg, Russia (V.I.T.)
- Department of Medical Genetics, St.-Petersburg Pediatric Medical University, 194100 St.-Petersburg, Russia
| | - Evgeny N. Imyanitov
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St.-Petersburg, Russia (V.I.T.)
- Department of Medical Genetics, St.-Petersburg Pediatric Medical University, 194100 St.-Petersburg, Russia
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9
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Zito Marino F, Buono S, Montella M, Giannatiempo R, Messina F, Casaretta G, Arpino G, Vita G, Fiorentino F, Insabato L, Sgambato A, Orditura M, Franco R, Accardo M. NTRK gene aberrations in triple-negative breast cancer: detection challenges using IHC, FISH, RT-PCR, and NGS. J Pathol Clin Res 2023; 9:367-377. [PMID: 37143440 PMCID: PMC10397374 DOI: 10.1002/cjp2.324] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 03/31/2023] [Accepted: 04/07/2023] [Indexed: 05/06/2023]
Abstract
Triple-negative breast cancer (TNBC) is usually an aggressive disease with a poor prognosis and limited treatment options. The neurotrophic tyrosine receptor kinase (NTRK) gene fusions are cancer type-agnostic emerging biomarkers approved by the Food and Drug Administration (FDA), USA, for the selection of patients for targeted therapy. The main aim of our study was to investigate the frequency of NTRK aberrations, i.e. fusions, gene copy number gain, and amplification, in a series of TNBC using different methods. A total of 83 TNBCs were analyzed using pan-TRK immunohistochemistry (IHC), fluorescence in situ hybridization (FISH), real-time polymerase chain reaction (RT-PCR), and RNA-based next-generation sequencing (NGS). Of 83 cases, 16 showed pan-TRK positivity although no cases had NTRK-fusions. Indeed, FISH showed four cases carrying an atypical NTRK1 pattern consisting of one fusion signal and one/more single green signals, but all cases were negative for fusion by NGS and RT-PCR testing. In addition, FISH analysis showed six cases with NTRK1 amplification, one case with NTRK2 copy number gain, and five cases with NTRK3 copy number gain, all negative for pan-TRK IHC. Our data demonstrate that IHC has a high false-positive rate for the detection of fusions and molecular testing is mandatory; there is no need to perform additional molecular tests in cases negativity for NTRK by IHC. In conclusion, the NTRK genes are not involved in fusions in TNBC, but both copy number gain and amplification are frequent events, suggesting a possible predictive role for other NTRK aberrations.
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Affiliation(s)
- Federica Zito Marino
- Pathology Unit, Department of Mental and Physical Health and Preventive MedicineUniversity of Campania “L. Vanvitelli”NaplesItaly
| | - Simona Buono
- Pathology Unit, Department of Mental and Physical Health and Preventive MedicineUniversity of Campania “L. Vanvitelli”NaplesItaly
| | - Marco Montella
- Pathology Unit, Department of Mental and Physical Health and Preventive MedicineUniversity of Campania “L. Vanvitelli”NaplesItaly
| | | | | | | | - Grazia Arpino
- Department of Clinical Medicine and SurgeryUniversity of Naples Federico IINaplesItaly
| | - Giulia Vita
- Anatomical Pathology Department, IRCCS CROBRionero in VultureItaly
| | | | - Luigi Insabato
- Department of Advanced Biomedical Sciences, Pathology SectionUniversity of Naples “Federico II”NaplesItaly
| | - Alessandro Sgambato
- Scientific Direction, Centro di Riferimento Oncologico della Basilicata (IRCCS‐CROB)Rionero in VultureItaly
| | - Michele Orditura
- Division of Medical Oncology, Department of Precision Medicine, School of MedicineUniversity of Campania “L. Vanvitelli”NaplesItaly
| | - Renato Franco
- Pathology Unit, Department of Mental and Physical Health and Preventive MedicineUniversity of Campania “L. Vanvitelli”NaplesItaly
| | - Marina Accardo
- Pathology Unit, Department of Mental and Physical Health and Preventive MedicineUniversity of Campania “L. Vanvitelli”NaplesItaly
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10
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Adam J, Stang NL, Uguen A, Badoual C, Chenard MP, Lantuéjoul S, Maran-Gonzalez A, Robin YM, Rochaix P, Sabourin JC, Soubeyran I, Sturm N, Svrcek M, Vincent-Salomon A, Radosevic-Robin N, Penault-Llorca F. Multicenter Harmonization Study of Pan-Trk Immunohistochemistry for the Detection of NTRK3 Fusions. Mod Pathol 2023; 36:100192. [PMID: 37084942 DOI: 10.1016/j.modpat.2023.100192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 03/14/2023] [Accepted: 04/12/2023] [Indexed: 04/23/2023]
Abstract
Pan-Trk immunohistochemistry has been described as a screening test for the detection of NTRK fusions in a broad spectrum of tumor types. However, pan-Trk testing in the clinical setting may be limited by many factors, including analytical parameters such as clones, platforms, and protocols used. This study aimed to harmonize pan-Trk testing using various clones and immunohistochemical (IHC) platforms and to evaluate the level of analytical variability across pathology laboratories. We developed several IHC pan-Trk assays using clones EPR17341 (Abcam) and A7H6R (Cell Signaling Technology) on Ventana/Roche, Agilent, and Leica platforms. To compare them, we sent unstained sections of a tissue microarray containing 9 cases with NTRK3 fusions to participating laboratories, to perform staining on Ventana/Roche (10 centers), Agilent (4 centers), and Leica (3 centers) platforms. A ready-to-use pan-Trk IVD assay (Ventana/Roche) was also performed in 3 centers. All slides were centrally and blindly reviewed for the percentage of stained tumor cells. Laboratory-developed tests with clone EPR17341 were able to detect pan-Trk protein expression in all cases, whereas lower rates of positivity were observed with clone A7H6R. Moderate to strong variability of the positive cases rate was observed with both antibodies in each IHC platforms type and each of the positivity cut points evaluated (≥1%, ≥10%, and ≥50% of stained tumor cells). The rate of false-negative cases was lower when pan-Trk staining was assessed with the lowest positivity threshold (≥1%). In conclusion, most evaluated pan-Trk IHC laboratory-developed tests were able to detect NTRK3-fusion proteins; however, a significant analytical variability was observed between antibodies, platforms, and centers.
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Affiliation(s)
- Julien Adam
- Pathology Department, Groupe Hospitalier Paris Saint-Joseph, Paris, and Inserm U1186, Gustave Roussy, Villejuif, France.
| | - Nolwenn Le Stang
- National Reference Center Mesopath, Centre Leon Berard, Lyon, France; Now with General Cancer Registry of Poitou-Charentes, Biology, Pharmacy and Public Health Unit, University Hospital, Poitiers, France
| | - Arnaud Uguen
- LBAI-UMR1227 - Inserm & Department of Pathology, CHU de Brest, Université de Brest, Brest, France
| | | | | | - Sylvie Lantuéjoul
- Université de Grenoble Alpes, Grenoble and Pathology Department, Centre Leon Berard, Lyon, France
| | | | | | | | | | | | | | - Magali Svrcek
- Pathology Department, Hôpital Saint-Antoine, AP-HP, Paris, France
| | | | - Nina Radosevic-Robin
- Pathology Department, Centre Jean Perrin, Clermont-Ferrand, France; University Clermont Auvergne, INSERM U1240, Clermont-Ferrand, France
| | - Frédérique Penault-Llorca
- Pathology Department, Centre Jean Perrin, Clermont-Ferrand, France; University Clermont Auvergne, INSERM U1240, Clermont-Ferrand, France
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11
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Schraa SJ, Stelloo E, Laclé MM, Swennenhuis JF, Brosens LAA, Fijneman RJA, Feitsma H, Koopman M, de Leng WW, Vink GR, Bol GM. Comparison of NTRK fusion detection methods in microsatellite-instability-high metastatic colorectal cancer. Virchows Arch 2023; 482:983-992. [PMID: 37067589 PMCID: PMC10247849 DOI: 10.1007/s00428-023-03538-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/15/2023] [Accepted: 03/27/2023] [Indexed: 04/18/2023]
Abstract
Tropomyosin receptor kinase (TRK) inhibitors have been approved for metastatic solid tumors harboring NTRK fusions, but the detection of NTRK fusions is challenging. International guidelines recommend pan-TRK immunohistochemistry (IHC) screening followed by next generation sequencing (NGS) in tumor types with low prevalence of NTRK fusions, including metastatic colorectal cancer (mCRC). RNA-based NGS is preferred, but is expensive, time-consuming, and extracting good-quality RNA from FFPE tissue is challenging. Alternatives in daily clinical practice are warranted. We assessed the diagnostic performance of RNA-NGS, FFPE-targeted locus capture (FFPE-TLC), fluorescence in situ hybridization (FISH), and the 5'/3' imbalance quantitative RT-PCR (qRT-PCR) after IHC screening in 268 patients with microsatellite-instability-high mCRC, the subgroup in which NTRK fusions are most prevalent (1-5%). A consensus result was determined after review of all assay results. In 16 IHC positive tumors, 10 NTRK fusions were detected. In 33 IHC negative samples, no additional transcribed NTRK fusions were found, underscoring the high sensitivity of IHC. Sensitivity of RNA-NGS, FFPE-TLC, FISH, and qRT-PCR was 90%, 90%, 78%, and 100%, respectively. Specificity was 100% for all assays. Robustness, defined as the percentage of samples that provided an interpretable result in the first run, was 100% for FFPE-TLC, yet more limited for RNA-NGS (85%), FISH (70%), and qRT-PCR (70%). Overall, we do not recommend FISH for the detection of NTRK fusions in mCRC due to its low sensitivity and limited robustness. We conclude that RNA-NGS, FFPE-TLC, and qRT-PCR are appropriate assays for NTRK fusion detection, after enrichment with pan-TRK IHC, in routine clinical practice.
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Affiliation(s)
- Suzanna J Schraa
- Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | | | - Miangela M Laclé
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | | | - Lodewijk A A Brosens
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Remond J A Fijneman
- Department of Pathology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | | | - Miriam Koopman
- Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Wendy W de Leng
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Geraldine R Vink
- Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
- Department of Research and Development, Netherlands Comprehensive Cancer Organisation (IKNL), Utrecht, Netherlands
| | - Guus M Bol
- Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.
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12
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Huygens S, Vellekoop H, Versteegh M, Santi I, Szilberhorn L, Zelei T, Nagy B, Tsiachristas A, Koleva-Kolarova R, Wordsworth S, Rutten-van Mölken M. Cost-Effectiveness Analysis of Treating Patients With NTRK-Positive Cancer With the Histology-Independent Therapy Entrectinib. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2023; 26:193-203. [PMID: 36229359 DOI: 10.1016/j.jval.2022.08.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVES This study tackles several challenges of evaluating histology-independent treatments using entrectinib as an example. Histology-independent treatments are provided based on genetic marker(s) of tumors, regardless of the tumor type. We evaluated the lifetime cost-effectiveness of testing all patients for NTRK fusions and treating the positive cases with entrectinib compared with no testing and standard of care (SoC) for all patients. METHODS The health economic model consisted of a decision tree reflecting the NTRK testing phase followed by a microsimulation model reflecting treatment with either entrectinib or SoC. Efficacy of entrectinib was based on data from basket trials, whereas historical data from NTRK-negative patients were corrected for the prognostic value of NTRK fusions to model SoC. RESULTS "Testing" (testing for NTRK fusions, with subsequent entrectinib treatment in NTRK-positive patients and SoC in NTRK-negative patients) had higher per-patient quality-adjusted life-years (QALYs) and costs than "No testing" (SoC for all patients), with a difference of 0.0043 and €732, respectively. This corresponded to an incremental cost-effectiveness ratio (ICER) of €169 957/QALY and, using a cost-effectiveness threshold of €80 000/QALY, an incremental net monetary benefit of -€388. When excluding the costs of genetic testing for NTRK fusions, the ICER was reduced to €36 290/QALY and the incremental net monetary benefit increased to €188. CONCLUSIONS When treatment requires the identification of a genetic marker, the associated costs and effects need to be accounted for. Because of the low prevalence of NTRK fusions, the number needed-to-test to identify patients eligible for entrectinib is large. Excluding the testing phase reduces the ICER substantially.
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Affiliation(s)
- Simone Huygens
- Institute for Medical Technology Assessment, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Heleen Vellekoop
- Institute for Medical Technology Assessment, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Matthijs Versteegh
- Institute for Medical Technology Assessment, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Irene Santi
- Institute for Medical Technology Assessment, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | | | - Tamás Zelei
- Syreon Research Institute, Budapest, Hungary
| | - Balázs Nagy
- Syreon Research Institute, Budapest, Hungary
| | | | | | - Sarah Wordsworth
- Health Economics Research Centre, University of Oxford, Oxford, England, United Kingdom
| | - Maureen Rutten-van Mölken
- Institute for Medical Technology Assessment, Erasmus University Rotterdam, Rotterdam, The Netherlands; Erasmus School of Health Policy & Management, Erasmus University Rotterdam, Rotterdam, The Netherlands.
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13
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Xu B, Suurmeijer AJH, Agaram NP, Antonescu CR. Head and Neck Mesenchymal Tumors with Kinase Fusions: A Report of 15 Cases With Emphasis on Wide Anatomic Distribution and Diverse Histologic Appearance. Am J Surg Pathol 2023; 47:248-258. [PMID: 36638315 PMCID: PMC9846578 DOI: 10.1097/pas.0000000000001982] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Mesenchymal tumors harboring various kinase fusions were recently recognized as emerging entities mainly in the soft tissues. We herein investigate the clinicopathologic and molecular characteristics of head and neck mesenchymal tumors harboring kinase fusions. The study cohort included 15 patients with a median age of 13 years (ranging from congenital to 63 y). The kinase genes involved in descending order were NTRK1 (n=6), NTRK3 (n=5), BRAF (n=2), and 1 each with MET, and RET. The anatomic locations were broad involving all tissue planes, including skin (n=4), intraosseous (n=4), major salivary glands (n=2), sinonasal tract (n=2), soft tissue of face or neck (n=2), and oral cavity (n=1). The histologic spectrum ranged from benign to high grade, in descending order including tumors resembling malignant peripheral nerve sheath tumor (MPNST)-like, fibrosarcoma (infantile or adult-type), lipofibromatosis-like neural tumor (LPFNT), inflammatory myofibroblastic tumor-like, and a novel phenotype resembling myxoma. Perivascular hyalinization/stromal keloid-like collagen bands and staghorn vasculature were common features in MPNST-like and LPFNT-like tumors. Two tumors (1 each with NTRK1 or BRAF rearrangement) were classified as high grade. By immunohistochemistry, S100 and CD34 positivity was noted in 71% and 60%, frequently in MPNST-like and LPFNT-like phenotypes. Pan-TRK was a sensitive marker for NTRK-translocated tumors but was negative in tumor with other kinase fusions. One patient with a high-grade tumor developed distant metastasis. Molecular testing for various kinase fusions should be considered for S100+/CD34+ spindle cell neoplasms with perivascular hyalinization and staghorn vessels, as pan-TRK positivity is seen only in NTRK fusions.
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Affiliation(s)
- Bin Xu
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Albert JH Suurmeijer
- Department of Pathology and Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Narasimhan P. Agaram
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Cristina R. Antonescu
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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14
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Vingiani A, Lorenzini D, Conca E, Volpi CC, Trupia DV, Gloghini A, Perrone F, Tamborini E, Dagrada GP, Agnelli L, Capone I, Busico A, Pruneri G. Pan-TRK immunohistochemistry as screening tool for NTRK fusions: A diagnostic workflow for the identification of positive patients in clinical practice. Cancer Biomark 2023; 38:301-309. [PMID: 37545217 DOI: 10.3233/cbm-220357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
BACKGROUND Pan-TRK inhibitors Entrectinib and Larotrectinib have been recently approved as tumor-agnostic therapies in NTRK1-2-3 rearranged patients and there is therefore an urgent need to identify reliable and accessible biomarkers for capturing NTRK fusions in the real-world practice. OBJECTIVE We aim to assess the analytical validity of the recently released pan-TRK assay (Ventana), running a head-to-head comparison between immunohistochemistry and Archer FusionPlex Lung Panel (ArcherDX) that is designed to detect key fusions in 13 genes, also including NTRK1-3. METHODS Pan-TRK IHC and NGS analysis were conducted on a retrospective/prospective cohort of 124 cancer patients (carcinomas, 93 cases; soft tissue sarcomas, 19; primary central nervous system tumours, 10; and neuroblastomas, 2). FISH data were available in most of the IHC/NGS discordant cases. RESULTS A comparison between IHC and NGS results was carried out in 117 cases: among 30 pan-TRK positive cases, NTRK rearrangement by NGS was found in 11 (37%), while one of the 87 (1.1%) pan-TRK negative cases (a case of NSCLC) showed a TPM3-NRTK1 rearrangement by NGS. Accordingly, sensitivity and specificity of IHC in predicting NTRK status were 91.7% and 81.9%, respectively, while negative (NPV) and positive predictive value (PPV) were 98.8% and 36.7%, respectively. CONCLUSIONS These data lead to suggest that IHC with VENTANA pan-TRK antibody can be a reliable screening tool for the identification of patients potentially bearing NTRK rearranged tumours.
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Affiliation(s)
- Andrea Vingiani
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
- Department of Oncology and Hematoncology, University of Milan, Milan, Italy
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
| | - Daniele Lorenzini
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
| | - Elena Conca
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
| | - Chiara Costanza Volpi
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
| | - Desirè Viola Trupia
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
| | - Annunziata Gloghini
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
| | - Federica Perrone
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
| | - Elena Tamborini
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
| | - Gian Paolo Dagrada
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
| | - Luca Agnelli
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
| | - Iolanda Capone
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
| | - Adele Busico
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
- Department of Oncology and Hematoncology, University of Milan, Milan, Italy
| | - Giancarlo Pruneri
- Department of Diagnostic Innovation, Foundation IRCCS National Cancer Institute, Milan, Italy
- Department of Oncology and Hematoncology, University of Milan, Milan, Italy
- Department of Oncology and Hematoncology, University of Milan, Milan, Italy
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15
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Limited Accuracy of Pan-Trk Immunohistochemistry Screening for NTRK Rearrangements in Follicular-Derived Thyroid Carcinoma. Int J Mol Sci 2022; 23:ijms23137470. [PMID: 35806472 PMCID: PMC9267555 DOI: 10.3390/ijms23137470] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/01/2022] [Accepted: 07/03/2022] [Indexed: 02/07/2023] Open
Abstract
Patients with advanced thyroid cancer harboring NTRK rearrangements can be treated with highly effective selective inhibitors. Immunohistochemistry (IHC) analysis, to detect Trk protein expression, represents an appealing screening strategy for NTRK rearrangements, but its efficacy has been poorly explored in thyroid cancer. The aim of this study is to investigate the diagnostic utility of Trk IHC in the identification of NTRK rearrangements. A series of 26 follicular-derived thyroid tumors, positive for NTRK rearrangements, and 28 NTRK fusion-negative controls were retrospectively analyzed by IHC using the pan-Trk monoclonal antibody (clone EPR17341) on the Ventana system. Area under the curve (AUC), sensitivity and specificity were calculated by ROC analysis. Trk expression was detected in 25 samples, including 22 out of the 26 NTRK-rearranged (84.6%) and three out of 28 NTRK-negative samples (10.7%). Four out of twenty-six NTRK-rearranged thyroid tumors were negative for Trk expression (15.4%), all carrying the ETV6/NTRK3 fusion. The AUC, sensitivity and specificity were 0.87, 0.85 and 0.89, respectively. A screening based on IHC analysis showed limited sensitivity and specificity in the identification of NTRK-rearranged tumors. Since falsely negative results could preclude the administration of effective targeted drugs, alternative detection strategies should be considered for thyroid cancer.
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16
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Wolff HB, Steeghs EMP, Mfumbilwa ZA, Groen HJM, Adang EM, Willems SM, Grünberg K, Schuuring E, Ligtenberg MJL, Tops BBJ, Coupé VMH. Cost-Effectiveness of Parallel Versus Sequential Testing of Genetic Aberrations for Stage IV Non-Small-Cell Lung Cancer in the Netherlands. JCO Precis Oncol 2022; 6:e2200201. [PMID: 35834758 PMCID: PMC9307305 DOI: 10.1200/po.22.00201] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
PURPOSE A large number of targeted treatment options for stage IV nonsquamous non–small-cell lung cancer with specific genetic aberrations in tumor DNA is available. It is therefore important to optimize diagnostic testing strategies, such that patients receive adequate personalized treatment that improves survival and quality of life. The aim of this study is to assess the efficacy (including diagnostic costs, turnaround time (TAT), unsuccessful tests, percentages of correct findings, therapeutic costs, and therapeutic effectiveness) of parallel next generation sequencing (NGS)–based versus sequential single-gene–based testing strategies routinely used in patients with metastasized non–small-cell lung cancer in the Netherlands. METHODS A diagnostic microsimulation model was developed to simulate 100,000 patients with prevalence of genetic aberrations, extracted from real-world data from the Dutch Pathology Registry. These simulated patients were modeled to undergo different testing strategies composed of multiple tests with different test characteristics including single-gene and panel tests, test accuracy, the probability of an unsuccessful test, and TAT. Diagnostic outcomes were linked to a previously developed treatment model, to predict average long-term survival, quality-adjusted life-years (QALYs), costs, and cost-effectiveness of parallel versus sequential testing. RESULTS NGS-based parallel testing for all actionable genetic aberrations is on average €266 cheaper than single-gene–based sequential testing, and detects additional relevant targetable genetic aberrations in 20.5% of the cases, given a TAT of maximally 2 weeks. Therapeutic costs increased by €8,358, and 0.12 QALYs were gained, leading to an incremental cost-effectiveness ratio of €69,614/QALY for parallel versus sequential testing. CONCLUSION NGS-based parallel testing is diagnostically superior over single-gene–based sequential testing, as it is cheaper and more effective than sequential testing. Parallel testing remains cost-effective with an incremental cost-effectiveness ratio of 69,614 €/QALY upon inclusion of therapeutic costs and long-term outcomes.
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Affiliation(s)
- Henri B Wolff
- Department of Epidemiology and Biostatistics, Amsterdam University Medical Center, VU Amsterdam, Amsterdam, the Netherlands
| | - Elisabeth M P Steeghs
- Department of Pathology, Radboudumc, Nijmegen, the Netherlands.,Department of Pathology, Antoni van Leeuwenhoek Hospital, the Netherlands Cancer Institute, Amsterdam, the Netherlands.,Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
| | - Zakile A Mfumbilwa
- Department of Epidemiology and Biostatistics, Amsterdam University Medical Center, VU Amsterdam, Amsterdam, the Netherlands
| | - Harry J M Groen
- Department of Pulmonary Diseases, University of Groningen and University Medical Center Groningen, Groningen, the Netherlands
| | - Eddy M Adang
- Department of Epidemiology, Biostatistics and HTA, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Stefan M Willems
- Department of Pathology and Medical Biology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands.,PALGA Foundation, Houten, the Netherlands
| | | | - Ed Schuuring
- Department of Pathology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Marjolijn J L Ligtenberg
- Department of Pathology, Radboudumc, Nijmegen, the Netherlands.,Department of Human Genetics, and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Bastiaan B J Tops
- Princess Máxima Center for Pediatric Oncology, Bilthoven, the Netherlands
| | - Veerle M H Coupé
- Department of Epidemiology and Biostatistics, Amsterdam University Medical Center, VU Amsterdam, Amsterdam, the Netherlands
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17
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Bang H, Lee MS, Sung M, Choi J, An S, Kim SH, Lee SE, Choi YL. NTRK Fusions in 1113 Solid Tumors in a Single Institution. Diagnostics (Basel) 2022; 12:diagnostics12061450. [PMID: 35741260 PMCID: PMC9222038 DOI: 10.3390/diagnostics12061450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/09/2022] [Accepted: 06/09/2022] [Indexed: 11/16/2022] Open
Abstract
Most NTRK fusions occur at very low frequencies in various common cancers. Recent recommendations on NTRK testing recommend immunohistochemistry (IHC) as the initial test for tumor types with a low frequency of NTRK fusions. This study investigated the accuracy of an IHC assay to detect NTRK fusions and characterize the clinicopathological and molecular features of NTRK-rearranged tumors. This retrospective study was conducted on 1113 solid tumor samples known to harbor no oncogenic driver alterations, including 510 non-small cell lung cancers (NSCLC), 503 colorectal cancers (CRC), and 79 inflammatory myofibroblastic tumors (IMT). Additionally, 21 ALK expression-positive cases were included. TRK expression was evaluated using a pan-Trk IHC assay, and positive cases were validated using NGS. TRK expression was observed in three NSCLCs (0.6%), six CRCs (1.2%), and six IMTs (6%). NTRK fusions were finally detected in two NSCLCs (0.4%), six CRCs (1.2%), and one IMT (1%). In NSCLC and CRC, the majority of NTRK fusions were readily discernible due to diffuse moderate-to-strong cytoplasmic staining on pan-Trk IHC. In IMT, focal weak nuclear staining indicated the presence of NTRK fusion. Therefore, the utility of pan-Trk IHC should be assessed considering that the difference in performance depends on tumor type.
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Affiliation(s)
- Heejin Bang
- Department of Pathology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul 05030, Korea;
| | - Mi-Sook Lee
- Laboratory of Theranotics and Molecular Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea; (M.-S.L.); (M.S.); (J.C.); (S.A.)
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul 06351, Korea
| | - Minjung Sung
- Laboratory of Theranotics and Molecular Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea; (M.-S.L.); (M.S.); (J.C.); (S.A.)
| | - Juyoung Choi
- Laboratory of Theranotics and Molecular Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea; (M.-S.L.); (M.S.); (J.C.); (S.A.)
| | - Sungbin An
- Laboratory of Theranotics and Molecular Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea; (M.-S.L.); (M.S.); (J.C.); (S.A.)
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul 06351, Korea
| | - Seok-Hyung Kim
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea;
| | - Seung Eun Lee
- Department of Pathology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul 05030, Korea;
- Correspondence: (S.E.L.); (Y.-L.C.); Tel.: +82-2-2030-5644 (S.E.L.); +82-2-3410-2800 (Y.-L.C.); Fax: +82-2-2030-5629 (S.E.L.); +82-2-3410-6396 (Y.-L.C.)
| | - Yoon-La Choi
- Laboratory of Theranotics and Molecular Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea; (M.-S.L.); (M.S.); (J.C.); (S.A.)
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul 06351, Korea
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea;
- Correspondence: (S.E.L.); (Y.-L.C.); Tel.: +82-2-2030-5644 (S.E.L.); +82-2-3410-2800 (Y.-L.C.); Fax: +82-2-2030-5629 (S.E.L.); +82-2-3410-6396 (Y.-L.C.)
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