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Sprooten J, Ceusters J, Coosemans A, Agostinis P, De Vleeschouwer S, Zitvogel L, Kroemer G, Galluzzi L, Garg AD. Trial watch: dendritic cell vaccination for cancer immunotherapy. Oncoimmunology 2019; 8:e1638212. [PMID: 31646087 PMCID: PMC6791419 DOI: 10.1080/2162402x.2019.1638212] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 06/26/2019] [Indexed: 12/12/2022] Open
Abstract
Dendritic- cells (DCs) have received considerable attention as potential targets for the development of anticancer vaccines. DC-based anticancer vaccination relies on patient-derived DCs pulsed with a source of tumor-associated antigens (TAAs) in the context of standardized maturation-cocktails, followed by their reinfusion. Extensive evidence has confirmed that DC-based vaccines can generate TAA-specific, cytotoxic T cells. Nonetheless, clinical efficacy of DC-based vaccines remains suboptimal, reflecting the widespread immunosuppression within tumors. Thus, clinical interest is being refocused on DC-based vaccines as combinatorial partners for T cell-targeting immunotherapies. Here, we summarize the most recent preclinical/clinical development of anticancer DC vaccination and discuss future perspectives for DC-based vaccines in immuno-oncology.
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Affiliation(s)
- Jenny Sprooten
- Cell Death Research & Therapy (CDRT) unit, Department of Cellular & Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Jolien Ceusters
- Department of Oncology, Laboratory of Tumor Immunology and Immunotherapy, ImmunOvar Research Group, KU Leuven, Leuven Cancer Institute, Leuven, Belgium
| | - An Coosemans
- Department of Oncology, Laboratory of Tumor Immunology and Immunotherapy, ImmunOvar Research Group, KU Leuven, Leuven Cancer Institute, Leuven, Belgium
- Department of Gynecology and Obstetrics, UZ Leuven, Leuven, Belgium
| | - Patrizia Agostinis
- Cell Death Research & Therapy (CDRT) unit, Department of Cellular & Molecular Medicine, KU Leuven, Leuven, Belgium
- Center for Cancer Biology (CCB), VIB, Leuven, Belgium
| | - Steven De Vleeschouwer
- Research Group Experimental Neurosurgery and Neuroanatomy, KU Leuven, Leuven, Belgium
- Department of Neurosurgery, UZ Leuven, Leuven, Belgium
| | - Laurence Zitvogel
- Gustave Roussy Comprehensive Cancer Institute, Villejuif, France
- INSERM, Villejuif, France
- Center of Clinical Investigations in Biotherapies of Cancer (CICBT) 1428, Villejuif, France
- Université Paris Sud/Paris XI, Le Kremlin-Bicêtre, France
| | - Guido Kroemer
- Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, INSERM U1138, Centre de Recherche des Cordeliers, Paris, France
- Metabolomics and Cell Biology Platforms, Gustave Roussy Comprehensive Cancer Institute, Villejuif, France
- Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France
- Suzhou Institute for Systems Medicine, Chinese Academy of Sciences, Suzhou, China
- Department of Women’s and Children’s Health, Karolinska University Hospital, Stockholm, Sweden
| | - Lorenzo Galluzzi
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA
- Sandra and Edward Meyer Cancer Center, New York, NY, USA
- Department of Dermatology, Yale School of Medicine, New Haven, CT, USA
- Université de Paris Descartes, Paris, France
| | - Abhishek D. Garg
- Cell Death Research & Therapy (CDRT) unit, Department of Cellular & Molecular Medicine, KU Leuven, Leuven, Belgium
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2
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Garg AD, Vara Perez M, Schaaf M, Agostinis P, Zitvogel L, Kroemer G, Galluzzi L. Trial watch: Dendritic cell-based anticancer immunotherapy. Oncoimmunology 2017; 6:e1328341. [PMID: 28811970 DOI: 10.1080/2162402x.2017.1328341] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 05/05/2017] [Indexed: 12/11/2022] Open
Abstract
Dendritic cell (DC)-based vaccines against cancer have been extensively developed over the past two decades. Typically DC-based cancer immunotherapy entails loading patient-derived DCs with an appropriate source of tumor-associated antigens (TAAs) and efficient DC stimulation through a so-called "maturation cocktail" (typically a combination of pro-inflammatory cytokines and Toll-like receptor agonists), followed by DC reintroduction into patients. DC vaccines have been documented to (re)activate tumor-specific T cells in both preclinical and clinical settings. There is considerable clinical interest in combining DC-based anticancer vaccines with T cell-targeting immunotherapies. This reflects the established capacity of DC-based vaccines to generate a pool of TAA-specific effector T cells and facilitate their infiltration into the tumor bed. In this Trial Watch, we survey the latest trends in the preclinical and clinical development of DC-based anticancer therapeutics. We also highlight how the emergence of immune checkpoint blockers and adoptive T-cell transfer-based approaches has modified the clinical niche for DC-based vaccines within the wide cancer immunotherapy landscape.
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Affiliation(s)
- Abhishek D Garg
- Cell Death Research & Therapy (CDRT) Lab, Department of Cellular & Molecular Medicine, KU Leuven University of Leuven, Leuven, Belgium
| | - Monica Vara Perez
- Cell Death Research & Therapy (CDRT) Lab, Department of Cellular & Molecular Medicine, KU Leuven University of Leuven, Leuven, Belgium
| | - Marco Schaaf
- Cell Death Research & Therapy (CDRT) Lab, Department of Cellular & Molecular Medicine, KU Leuven University of Leuven, Leuven, Belgium
| | - Patrizia Agostinis
- Cell Death Research & Therapy (CDRT) Lab, Department of Cellular & Molecular Medicine, KU Leuven University of Leuven, Leuven, Belgium
| | - Laurence Zitvogel
- Gustave Roussy Comprehensive Cancer Institute, Villejuif, France.,INSERM, U1015, Villejuif, France.,Center of Clinical Investigations in Biotherapies of Cancer (CICBT) 1428, Villejuif, France.,Université Paris Sud/Paris XI, Le Kremlin-Bicêtre, France
| | - Guido Kroemer
- Université Paris Descartes/Paris V, Paris, France.,Université Pierre et Marie Curie/Paris VI, Paris, France.,Equipe 11 labellisée Ligue contre le Cancer, Centre de Recherche des Cordeliers, Paris, France.,INSERM, U1138, Paris, France.,Metabolomics and Cell Biology Platforms, Gustave Roussy Comprehensive Cancer Institute, Villejuif, France.,Karolinska Institute, Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden.,Pôle de Biologie, Hopitâl Européen George Pompidou, AP-HP, Paris, France
| | - Lorenzo Galluzzi
- Université Paris Descartes/Paris V, Paris, France.,Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA.,Sandra and Edward Meyer Cancer Center, New York, NY, USA
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3
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Galluzzi L, Vacchelli E, Pedro JMBS, Buqué A, Senovilla L, Baracco EE, Bloy N, Castoldi F, Abastado JP, Agostinis P, Apte RN, Aranda F, Ayyoub M, Beckhove P, Blay JY, Bracci L, Caignard A, Castelli C, Cavallo F, Celis E, Cerundolo V, Clayton A, Colombo MP, Coussens L, Dhodapkar MV, Eggermont AM, Fearon DT, Fridman WH, Fučíková J, Gabrilovich DI, Galon J, Garg A, Ghiringhelli F, Giaccone G, Gilboa E, Gnjatic S, Hoos A, Hosmalin A, Jäger D, Kalinski P, Kärre K, Kepp O, Kiessling R, Kirkwood JM, Klein E, Knuth A, Lewis CE, Liblau R, Lotze MT, Lugli E, Mach JP, Mattei F, Mavilio D, Melero I, Melief CJ, Mittendorf EA, Moretta L, Odunsi A, Okada H, Palucka AK, Peter ME, Pienta KJ, Porgador A, Prendergast GC, Rabinovich GA, Restifo NP, Rizvi N, Sautès-Fridman C, Schreiber H, Seliger B, Shiku H, Silva-Santos B, Smyth MJ, Speiser DE, Spisek R, Srivastava PK, Talmadge JE, Tartour E, Van Der Burg SH, Van Den Eynde BJ, Vile R, Wagner H, Weber JS, Whiteside TL, Wolchok JD, Zitvogel L, Zou W, Kroemer G. Classification of current anticancer immunotherapies. Oncotarget 2014; 5:12472-508. [PMID: 25537519 PMCID: PMC4350348 DOI: 10.18632/oncotarget.2998] [Citation(s) in RCA: 319] [Impact Index Per Article: 31.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Accepted: 12/15/2014] [Indexed: 11/25/2022] Open
Abstract
During the past decades, anticancer immunotherapy has evolved from a promising therapeutic option to a robust clinical reality. Many immunotherapeutic regimens are now approved by the US Food and Drug Administration and the European Medicines Agency for use in cancer patients, and many others are being investigated as standalone therapeutic interventions or combined with conventional treatments in clinical studies. Immunotherapies may be subdivided into "passive" and "active" based on their ability to engage the host immune system against cancer. Since the anticancer activity of most passive immunotherapeutics (including tumor-targeting monoclonal antibodies) also relies on the host immune system, this classification does not properly reflect the complexity of the drug-host-tumor interaction. Alternatively, anticancer immunotherapeutics can be classified according to their antigen specificity. While some immunotherapies specifically target one (or a few) defined tumor-associated antigen(s), others operate in a relatively non-specific manner and boost natural or therapy-elicited anticancer immune responses of unknown and often broad specificity. Here, we propose a critical, integrated classification of anticancer immunotherapies and discuss the clinical relevance of these approaches.
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Affiliation(s)
- Lorenzo Galluzzi
- Equipe 11 labellisée pas la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- INSERM, U1138, Paris, France
- Gustave Roussy Cancer Campus, Villejuif, France
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France
| | - Erika Vacchelli
- Equipe 11 labellisée pas la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- INSERM, U1138, Paris, France
- Gustave Roussy Cancer Campus, Villejuif, France
| | - José-Manuel Bravo-San Pedro
- Equipe 11 labellisée pas la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- INSERM, U1138, Paris, France
- Gustave Roussy Cancer Campus, Villejuif, France
| | - Aitziber Buqué
- Equipe 11 labellisée pas la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- INSERM, U1138, Paris, France
- Gustave Roussy Cancer Campus, Villejuif, France
| | - Laura Senovilla
- Equipe 11 labellisée pas la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- INSERM, U1138, Paris, France
- Gustave Roussy Cancer Campus, Villejuif, France
| | - Elisa Elena Baracco
- Equipe 11 labellisée pas la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- INSERM, U1138, Paris, France
- Gustave Roussy Cancer Campus, Villejuif, France
- Faculté de Medicine, Université Paris Sud/Paris XI, Le Kremlin-Bicêtre, France
| | - Norma Bloy
- Equipe 11 labellisée pas la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- INSERM, U1138, Paris, France
- Gustave Roussy Cancer Campus, Villejuif, France
- Faculté de Medicine, Université Paris Sud/Paris XI, Le Kremlin-Bicêtre, France
| | - Francesca Castoldi
- Equipe 11 labellisée pas la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- INSERM, U1138, Paris, France
- Gustave Roussy Cancer Campus, Villejuif, France
- Faculté de Medicine, Université Paris Sud/Paris XI, Le Kremlin-Bicêtre, France
- Sotio a.c., Prague, Czech Republic
| | - Jean-Pierre Abastado
- Pole d'innovation thérapeutique en oncologie, Institut de Recherches Internationales Servier, Suresnes, France
| | - Patrizia Agostinis
- Cell Death Research and Therapy (CDRT) Laboratory, Dept. of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Ron N. Apte
- The Shraga Segal Dept. of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Fernando Aranda
- Equipe 11 labellisée pas la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- INSERM, U1138, Paris, France
- Gustave Roussy Cancer Campus, Villejuif, France
- Group of Immune receptors of the Innate and Adaptive System, Institut d'Investigacions Biomédiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Maha Ayyoub
- INSERM, U1102, Saint Herblain, France
- Institut de Cancérologie de l'Ouest, Saint Herblain, France
| | - Philipp Beckhove
- Translational Immunology Division, German Cancer Research Center, Heidelberg, Germany
| | - Jean-Yves Blay
- Equipe 11, Centre Léon Bérard (CLR), Lyon, France
- Centre de Recherche en Cancérologie de Lyon (CRCL), Lyon, France
| | - Laura Bracci
- Dept. of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Anne Caignard
- INSERM, U1160, Paris, France
- Groupe Hospitalier Saint Louis-Lariboisière - F. Vidal, Paris, France
| | - Chiara Castelli
- Unit of Immunotherapy of Human Tumors, Dept. of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale Tumori, Milano, Italy
| | - Federica Cavallo
- Molecular Biotechnology Center, Dept. of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Estaban Celis
- Cancer Immunology, Inflammation and Tolerance Program, Georgia Regents University Cancer Center, Augusta, GA, USA
| | - Vincenzo Cerundolo
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Aled Clayton
- Institute of Cancer & Genetics, School of Medicine, Cardiff University, Cardiff, UK
- Velindre Cancer Centre, Cardiff, UK
| | - Mario P. Colombo
- Unit of Immunotherapy of Human Tumors, Dept. of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale Tumori, Milano, Italy
| | - Lisa Coussens
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - Madhav V. Dhodapkar
- Sect. of Hematology and Immunobiology, Yale Cancer Center, Yale University, New Haven, CT, USA
| | | | | | - Wolf H. Fridman
- INSERM, U1138, Paris, France
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France
- Université Pierre et Marie Curie/Paris VI, Paris, France
- Equipe 13, Centre de Recherche des Cordeliers, Paris, France
| | - Jitka Fučíková
- Sotio a.c., Prague, Czech Republic
- Dept. of Immunology, 2nd Faculty of Medicine and University Hospital Motol, Charles University, Prague, Czech Republic
| | - Dmitry I. Gabrilovich
- Dept. of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jérôme Galon
- INSERM, U1138, Paris, France
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France
- Université Pierre et Marie Curie/Paris VI, Paris, France
- Laboratory of Integrative Cancer Immunology, Centre de Recherche des Cordeliers, Paris, France
| | - Abhishek Garg
- Cell Death Research and Therapy (CDRT) Laboratory, Dept. of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - François Ghiringhelli
- INSERM, UMR866, Dijon, France
- Centre Georges François Leclerc, Dijon, France
- Université de Bourgogne, Dijon, France
| | - Giuseppe Giaccone
- Center for Cancer Research, National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD, USA
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Eli Gilboa
- Dept. of Microbiology and Immunology, Sylvester Comprehensive Cancer Center, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Sacha Gnjatic
- Sect. of Hematology/Oncology, Immunology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Axel Hoos
- Glaxo Smith Kline, Cancer Immunotherapy Consortium, Collegeville, PA, USA
| | - Anne Hosmalin
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France
- INSERM, U1016, Paris, France
- CNRS, UMR8104, Paris, France
- Hôpital Cochin, AP-HP, Paris, France
| | - Dirk Jäger
- National Center for Tumor Diseases, University Medical Center Heidelberg, Heidelberg, Germany
| | - Pawel Kalinski
- Dept. of Surgery, University of Pittsburgh, Pittsburgh, PA, USA
- University of Pittsburgh Cancer Institute, Hillman Cancer Center, Pittsburgh, PA, USA
- Dept. of Immunology and Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Klas Kärre
- Dept. of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm, Sweden
| | - Oliver Kepp
- Equipe 11 labellisée pas la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- INSERM, U1138, Paris, France
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Rolf Kiessling
- Dept. of Oncology, Karolinska Institute Hospital, Stockholm, Sweden
| | - John M. Kirkwood
- University of Pittsburgh Cancer Institute Laboratory, Pittsburgh, PA, USA
| | - Eva Klein
- Dept. of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm, Sweden
| | - Alexander Knuth
- National Center for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
| | - Claire E. Lewis
- Academic Unit of Inflammation and Tumour Targeting, Dept. of Oncology, University of Sheffield Medical School, Sheffield, UK
| | - Roland Liblau
- INSERM, UMR1043, Toulouse, France
- CNRS, UMR5282, Toulouse, France
- Laboratoire d'Immunologie, CHU Toulouse, Université Toulouse II, Toulouse, France
| | - Michael T. Lotze
- Dept. of Surgery, University of Pittsburgh, Pittsburgh, PA, USA
- University of Pittsburgh Cancer Institute, Hillman Cancer Center, Pittsburgh, PA, USA
| | - Enrico Lugli
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Institute, Rozzano, Italy
| | - Jean-Pierre Mach
- Dept. of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | - Fabrizio Mattei
- Dept. of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Domenico Mavilio
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Institute, Rozzano, Italy
- Dept. of Medical Biotechnologies and Translational Medicine, University of Milan, Rozzano, Italy
| | - Ignacio Melero
- Dept. of Immunology, Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, Pamplona, Spain
- Dept. of Oncology, Clínica Universidad de Navarra, Pamplona, Spain
| | - Cornelis J. Melief
- ISA Therapeutics, Leiden, The Netherlands
- Dept. of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, The Netherlands
| | - Elizabeth A. Mittendorf
- Research Dept. of Surgical Oncology, The University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | | | - Adekunke Odunsi
- Center for Immunotherapy, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Hideho Okada
- Dept. of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | | | - Marcus E. Peter
- Div. of Hematology/Oncology, Northwestern University, Feinberg School of Medicine, Chicago, IL, USA
| | - Kenneth J. Pienta
- The James Buchanan Brady Urological Institute, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Angel Porgador
- The Shraga Segal Dept. of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - George C. Prendergast
- Lankenau Institute for Medical Research, Wynnewood, PA, USA
- Dept. of Pathology, Anatomy and Cell Biology, Sidney Kimmel Medical College, Philadelphia, PA, USA
- Cell Biology and Signaling Program, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - Gabriel A. Rabinovich
- Laboratorio de Inmunopatología, Instituto de Biología y Medicina Experimental (IBYME), Buenos Aires, Argentina
| | - Nicholas P. Restifo
- National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Naiyer Rizvi
- Memorial Sloan Kettering Cancer Center (MSKCC), New York, NY, USA
| | - Catherine Sautès-Fridman
- INSERM, U1138, Paris, France
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France
- Université Pierre et Marie Curie/Paris VI, Paris, France
- Equipe 13, Centre de Recherche des Cordeliers, Paris, France
| | - Hans Schreiber
- Dept. of Pathology, The Cancer Research Center, The University of Chicago, Chicago, IL, USA
| | - Barbara Seliger
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Hiroshi Shiku
- Dept. of Immuno-GeneTherapy, Mie University Graduate School of Medicine, Tsu, Japan
| | - Bruno Silva-Santos
- Instituto de Medicina Molecular, Universidade de Lisboa, Lisboa, Portugal
| | - Mark J. Smyth
- Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
- School of Medicine, University of Queensland, Herston, Queensland, Australia
| | - Daniel E. Speiser
- Dept. of Oncology, University of Lausanne, Lausanne, Switzerland
- Ludwig Cancer Research Center, Lausanne, Switzerland
| | - Radek Spisek
- Sotio a.c., Prague, Czech Republic
- Dept. of Immunology, 2nd Faculty of Medicine and University Hospital Motol, Charles University, Prague, Czech Republic
| | - Pramod K. Srivastava
- Dept. of Immunology, University of Connecticut School of Medicine, Farmington, CT, USA
- Carole and Ray Neag Comprehensive Cancer Center, Farmington, CT, USA
| | - James E. Talmadge
- Laboratory of Transplantation Immunology, Dept. of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Eric Tartour
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France
- INSERM, U970, Paris, France
- Paris-Cardiovascular Research Center (PARCC), Paris, France
- Service d'Immunologie Biologique, Hôpital Européen Georges Pompidou (HEGP), AP-HP, Paris, France
| | | | - Benoît J. Van Den Eynde
- Ludwig Institute for Cancer Research, Brussels, Belgium
- de Duve Institute, Brussels, Belgium
- Université Catholique de Louvain, Brussels, Belgium
| | - Richard Vile
- Dept. of Molecular Medicine and Immunology, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Hermann Wagner
- Institute of Medical Microbiology, Immunology and Hygiene, Technical University Munich, Munich, Germany
| | - Jeffrey S. Weber
- Donald A. Adam Comprehensive Melanoma Research Center, Moffitt Cancer Center, Tampa, FL, USA
| | - Theresa L. Whiteside
- University of Pittsburgh Cancer Institute, Hillman Cancer Center, Pittsburgh, PA, USA
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Jedd D. Wolchok
- Dept. of Medicine and Ludwig Center, Memorial Sloan Kettering Cancer Center (MSKCC), New York, NY, USA
- Weill Cornell Medical College, New York, NY, USA
| | - Laurence Zitvogel
- Gustave Roussy Cancer Campus, Villejuif, France
- INSERM, U1015, Villejuif, France
- Centre d'Investigation Clinique Biothérapie 507 (CICBT507), Gustave Roussy Cancer Campus, Villejuif, France
| | - Weiping Zou
- University of Michigan, School of Medicine, Ann Arbor, MI, USA
| | - Guido Kroemer
- Equipe 11 labellisée pas la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- INSERM, U1138, Paris, France
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
- Pôle de Biologie, Hôpital Européen Georges Pompidou (HEGP), AP-HP, Paris, France
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4
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Bloy N, Pol J, Aranda F, Eggermont A, Cremer I, Fridman WH, Fučíková J, Galon J, Tartour E, Spisek R, Dhodapkar MV, Zitvogel L, Kroemer G, Galluzzi L. Trial watch: Dendritic cell-based anticancer therapy. Oncoimmunology 2014; 3:e963424. [PMID: 25941593 DOI: 10.4161/21624011.2014.963424] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 09/05/2014] [Indexed: 02/06/2023] Open
Abstract
The use of patient-derived dendritic cells (DCs) as a means to elicit therapeutically relevant immune responses in cancer patients has been extensively investigated throughout the past decade. In this context, DCs are generally expanded, exposed to autologous tumor cell lysates or loaded with specific tumor-associated antigens (TAAs), and then reintroduced into patients, often in combination with one or more immunostimulatory agents. As an alternative, TAAs are targeted to DCs in vivo by means of monoclonal antibodies, carbohydrate moieties or viral vectors specific for DC receptors. All these approaches have been shown to (re)activate tumor-specific immune responses in mice, often mediating robust therapeutic effects. In 2010, the first DC-based preparation (sipuleucel-T, also known as Provenge®) has been approved by the US Food and Drug Administration (FDA) for use in humans. Reflecting the central position occupied by DCs in the regulation of immunological tolerance and adaptive immunity, the interest in harnessing them for the development of novel immunotherapeutic anticancer regimens remains high. Here, we summarize recent advances in the preclinical and clinical development of DC-based anticancer therapeutics.
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Key Words
- DC, dendritic cell
- DC-based vaccination
- FDA, Food and Drug Administration
- IFN, interferon
- MRC1, mannose receptor, C type 1
- MUC1, mucin 1
- TAA, tumor-associated antigen
- TLR, Toll-like receptor
- Toll-like receptor agonists
- Treg, regulatory T cell
- WT1, Wilms tumor 1
- antigen cross-presentation
- autophagy
- iDC, immature DC
- immunogenic cell death
- mDC, mature DC
- pDC, plasmacytoid DC
- regulatory T cells
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Affiliation(s)
- Norma Bloy
- Gustave Roussy Cancer Campus ; Villejuif, France ; INSERM , U1138; Paris France ; Equipe 11 labellisée par la Ligue Nationale contre le Cancer; Centre de Recherche des Cordeliers ; Paris France ; Université Paris-Sud/Paris XI ; Orsay, France
| | - Jonathan Pol
- Gustave Roussy Cancer Campus ; Villejuif, France ; INSERM , U1138; Paris France ; Equipe 11 labellisée par la Ligue Nationale contre le Cancer; Centre de Recherche des Cordeliers ; Paris France
| | - Fernando Aranda
- Gustave Roussy Cancer Campus ; Villejuif, France ; INSERM , U1138; Paris France ; Equipe 11 labellisée par la Ligue Nationale contre le Cancer; Centre de Recherche des Cordeliers ; Paris France
| | | | - Isabelle Cremer
- INSERM , U1138; Paris France ; Equipe 13; Centre de Recherche des Cordeliers ; Paris France ; Université Pierre et Marie Curie/Paris VI ; Paris France
| | - Wolf Hervé Fridman
- INSERM , U1138; Paris France ; Equipe 13; Centre de Recherche des Cordeliers ; Paris France ; Université Pierre et Marie Curie/Paris VI ; Paris France
| | - Jitka Fučíková
- Department of Immunology; 2nd Medical School Charles University and University Hospital Motol ; Prague, Czech Republic ; Sotio a.s. ; Prague, Czech Republic
| | - Jérôme Galon
- INSERM , U1138; Paris France ; Université Pierre et Marie Curie/Paris VI ; Paris France ; Laboratory of Integrative Cancer Immunology; Centre de Recherche des Cordeliers ; Paris France ; Université Paris Descartes/Paris V; Sorbonne Paris Cité ; Paris France
| | - Eric Tartour
- Université Paris Descartes/Paris V; Sorbonne Paris Cité ; Paris France ; INSERM , U970; Paris France ; Pôle de Biologie; Hôpital Européen Georges Pompidou, AP-HP ; Paris France
| | - Radek Spisek
- Department of Immunology; 2nd Medical School Charles University and University Hospital Motol ; Prague, Czech Republic ; Sotio a.s. ; Prague, Czech Republic
| | - Madhav V Dhodapkar
- Department of Medicine; Immunobiology and Yale Cancer Center; Yale University ; New Haven, CT USA
| | - Laurence Zitvogel
- Gustave Roussy Cancer Campus ; Villejuif, France ; INSERM, U1015, CICBT507 ; Villejuif, France
| | - Guido Kroemer
- INSERM , U1138; Paris France ; Equipe 11 labellisée par la Ligue Nationale contre le Cancer; Centre de Recherche des Cordeliers ; Paris France ; Université Paris Descartes/Paris V; Sorbonne Paris Cité ; Paris France ; Pôle de Biologie; Hôpital Européen Georges Pompidou, AP-HP ; Paris France ; Metabolomics and Cell Biology Platforms; Gustave Roussy Cancer Campus ; Villejuif, France
| | - Lorenzo Galluzzi
- Gustave Roussy Cancer Campus ; Villejuif, France ; INSERM , U1138; Paris France ; Equipe 11 labellisée par la Ligue Nationale contre le Cancer; Centre de Recherche des Cordeliers ; Paris France ; Université Paris Descartes/Paris V; Sorbonne Paris Cité ; Paris France
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5
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Galluzzi L, Senovilla L, Vacchelli E, Eggermont A, Fridman WH, Galon J, Sautès-Fridman C, Tartour E, Zitvogel L, Kroemer G. Trial watch: Dendritic cell-based interventions for cancer therapy. Oncoimmunology 2014; 1:1111-1134. [PMID: 23170259 PMCID: PMC3494625 DOI: 10.4161/onci.21494] [Citation(s) in RCA: 136] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Dendritic cells (DCs) occupy a central position in the immune system, orchestrating a wide repertoire of responses that span from the development of self-tolerance to the elicitation of potent cellular and humoral immunity. Accordingly, DCs are involved in the etiology of conditions as diverse as infectious diseases, allergic and autoimmune disorders, graft rejection and cancer. During the last decade, several methods have been developed to load DCs with tumor-associated antigens, ex vivo or in vivo, in the attempt to use them as therapeutic anticancer vaccines that would elicit clinically relevant immune responses. While this has not always been the case, several clinical studies have demonstrated that DC-based anticancer vaccines are capable of activating tumor-specific immune responses that increase overall survival, at least in a subset of patients. In 2010, this branch of clinical research has culminated with the approval by FDA of a DC-based therapeutic vaccine (sipuleucel-T, Provenge®) for use in patients with asymptomatic or minimally symptomatic metastatic hormone-refractory prostate cancer. Intense research efforts are currently dedicated to the identification of the immunological features of patients that best respond to DC-based anticancer vaccines. This knowledge may indeed lead to personalized combination strategies that would extend the benefit of DC-based immunotherapy to a larger patient population. In addition, widespread enthusiasm has been generated by the results of the first clinical trials based on in vivo DC targeting, an approach that holds great promises for the future of DC-based immunotherapy. In this Trial Watch, we will summarize the results of recently completed clinical trials and discuss the progress of ongoing studies that have evaluated/are evaluating DC-based interventions for cancer therapy.
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Affiliation(s)
- Lorenzo Galluzzi
- Université Paris Descartes/Paris V; Sorbonne Paris Cité; Paris, France ; Institut Gustave Roussy; Villejuif, France
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6
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Sahin U, Karikó K, Türeci Ö. mRNA-based therapeutics--developing a new class of drugs. Nat Rev Drug Discov 2014; 13:759-80. [PMID: 25233993 DOI: 10.1038/nrd4278] [Citation(s) in RCA: 1301] [Impact Index Per Article: 130.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In vitro transcribed (IVT) mRNA has recently come into focus as a potential new drug class to deliver genetic information. Such synthetic mRNA can be engineered to transiently express proteins by structurally resembling natural mRNA. Advances in addressing the inherent challenges of this drug class, particularly related to controlling the translational efficacy and immunogenicity of the IVTmRNA, provide the basis for a broad range of potential applications. mRNA-based cancer immunotherapies and infectious disease vaccines have entered clinical development. Meanwhile, emerging novel approaches include in vivo delivery of IVT mRNA to replace or supplement proteins, IVT mRNA-based generation of pluripotent stem cells and genome engineering using IVT mRNA-encoded designer nucleases. This Review provides a comprehensive overview of the current state of mRNA-based drug technologies and their applications, and discusses the key challenges and opportunities in developing these into a new class of drugs.
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Affiliation(s)
- Ugur Sahin
- 1] TRON Translational Oncology at the University Medical Center of the Johannes Gutenberg University, Langenbeckstrasse 1, 55131 Mainz, Germany. [2] BioNTech Corporation, An der Goldgrube 12, 55131 Mainz, Germany
| | - Katalin Karikó
- 1] BioNTech Corporation, An der Goldgrube 12, 55131 Mainz, Germany. [2] Department of Neurosurgery, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA
| | - Özlem Türeci
- TRON Translational Oncology at the University Medical Center of the Johannes Gutenberg University, Langenbeckstrasse 1, 55131 Mainz, Germany
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7
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Forghanifard MM, Gholamin M, Moaven O, Farshchian M, Ghahraman M, Aledavood A, Abbaszadegan MR. Neoantigen in esophageal squamous cell carcinoma for dendritic cell-based cancer vaccine development. Med Oncol 2014; 31:191. [DOI: 10.1007/s12032-014-0191-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2014] [Accepted: 08/13/2014] [Indexed: 02/08/2023]
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8
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Klammer M, Roddie PH. Current progress in the development of a cell-based vaccine for the immunotherapy of acute myeloid leukemia. Expert Rev Vaccines 2014; 5:211-22. [PMID: 16608421 DOI: 10.1586/14760584.5.2.211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Evidence that immunological control contributes to the elimination of residual leukemia has emerged from allogeneic hematopoietic stem cell transplantation. This review assesses the current understanding of immunobiology of acute myeloid leukemia and how dendritic cells and T cells may be harnessed using in vitro and in vivo priming techniques. Preclinical and clinical dendritic cell vaccine trials reported to date are considered and the prospects for immunotherapy with dendritic cell-based vaccine constructs evaluated.
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Affiliation(s)
- Matthias Klammer
- Western General Hospital, University of Edinburgh-Leukaemia Research Fund, John Hughes Bennett Laboratory and Department of Haematology, Western General Hospital, Edinburgh, UK.
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9
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Waki N, Yajima N, Suganuma H, Buddle BM, Luo D, Heiser A, Zheng T. Oral administration of Lactobacillus brevis KB290 to mice alleviates clinical symptoms following influenza virus infection. Lett Appl Microbiol 2013; 58:87-93. [PMID: 24329975 DOI: 10.1111/lam.12160] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 09/11/2013] [Accepted: 09/12/2013] [Indexed: 11/30/2022]
Abstract
UNLABELLED Lactobacillus brevis KB290 (KB290), isolated from a traditional Japanese pickle 'Suguki', has been reported to have immunomodulatory effects. We investigated whether oral administration of KB290 has protective effects against influenza virus (IFV) infection in mice. After 14 days of administration of lyophilized KB290 suspended in phosphate-buffered saline by oral gavage, BALB/c mice were intranasally infected with 2 × MLD50 (50% mouse lethal dose) of IFV A/PR/8/34 (H1N1). Prophylactically administered KB290 significantly alleviated the loss of body weight and the deterioration in observational physical conditions induced by the infection. In addition, 7 days after infection, the levels of IFV-specific immunoglobulin (Ig)A in bronchoalveolar lavage fluid were significantly increased in mice fed KB290 compared with controls. Moreover, there was a significant elevation of serum interferon (IFN)-α in KB290 group mice, even at three and 7 days after infection, despite the administration of KB290 being stopped before IFV infection. Our results demonstrated that oral administration of KB290 before infection could alleviate IFV-induced clinical symptoms. Alleviation of clinical symptoms by KB290 consumption may have been induced by long-lasting enhancement of IFN-α production and the augmentation of IFV-specific IgA production. SIGNIFICANCE AND IMPACT OF THE STUDY This study demonstrated that oral administration of Lactobacillus brevis KB290 (KB290), a probiotic strain derived from a Japanese traditional pickle, could protect against influenza virus (IFV) infection in mice. Our results demonstrated that continual intake of KB290 for 14 days prior to IFV infection alleviated clinical symptoms such as loss of body weight and deterioration in observational physical conditions induced by the infection. The beneficial effects of KB290 consumption may have been elicited by the long-lasting enhancement of interferon-α production and the augmentation of IFV-specific immunoglobulin A production.
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Affiliation(s)
- N Waki
- Research and Development Division, Kagome Co., Ltd., Tochigi, Japan
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10
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Vacchelli E, Vitale I, Eggermont A, Fridman WH, Fučíková J, Cremer I, Galon J, Tartour E, Zitvogel L, Kroemer G, Galluzzi L. Trial watch: Dendritic cell-based interventions for cancer therapy. Oncoimmunology 2013; 2:e25771. [PMID: 24286020 PMCID: PMC3841205 DOI: 10.4161/onci.25771] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 07/16/2013] [Indexed: 12/26/2022] Open
Abstract
Dendritic cells (DCs) occupy a privileged position at the interface between innate and adaptive immunity, orchestrating a large panel of responses to both physiological and pathological cues. In particular, whereas the presentation of antigens by immature DCs generally results in the development of immunological tolerance, mature DCs are capable of priming robust, and hence therapeutically relevant, adaptive immune responses. In line with this notion, functional defects in the DC compartment have been shown to etiologically contribute to pathological conditions including (but perhaps not limited to) infectious diseases, allergic and autoimmune disorders, graft rejection and cancer. Thus, the possibility of harnessing the elevated immunological potential of DCs for anticancer therapy has attracted considerable interest from both researchers and clinicians over the last decade. Alongside, several methods have been developed not only to isolate DCs from cancer patients, expand them, load them with tumor-associated antigens and hence generate highly immunogenic clinical grade infusion products, but also to directly target DCs in vivo. This intense experimental effort has culminated in 2010 with the approval by the US FDA of a DC-based preparation (sipuleucel-T, Provenge®) for the treatment of asymptomatic or minimally symptomatic metastatic castration-refractory prostate cancer. As an update to the latest Trial Watch dealing with this exciting field of research (October 2012), here we summarize recent advances in DC-based anticancer regimens, covering both high-impact studies that have been published during the last 13 mo and clinical trials that have been launched in the same period to assess the antineoplastic potential of this variant of cellular immunotherapy.
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Affiliation(s)
- Erika Vacchelli
- Gustave Roussy; Villejuif, France ; Université Paris-Sud/Paris XI; Le Kremlin-Bicêtre, France ; INSERM, U848; Villejuif, France
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11
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Chen J, Guo XZ, Li HY, Liu X, Ren LN, Wang D, Zhao JJ. Generation of CTL responses against pancreatic cancer in vitro using dendritic cells co-transfected with MUC4 and survivin RNA. Vaccine 2013; 31:4585-90. [PMID: 23928463 DOI: 10.1016/j.vaccine.2013.07.055] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 06/28/2013] [Accepted: 07/18/2013] [Indexed: 12/28/2022]
Abstract
Pancreatic cancer (PC) is one of the most devastating human malignancies without effective therapies. Tumor vaccine based on RNA-transfected dendritic cells (DCs) has emerged as an alternative therapeutic approach for a variety of human cancers including advanced PC. In the present study we compared the cytotoxic T lymphocyte (CTL) responses against PC cells in vitro, which were induced by DCs co-transfected with two mRNAs of tumor associated-antigens (TAA) MUC4 and survivin, versus DCs transfected with a single mRNA encoding either MUC4 or survivin. DCs co-transfected with two TAA mRNAs were found to induce stronger CTL responses against PC target cells in vitro, compared with the DCs transfected with a single mRNA. Moreover, the antigen-specific CTL responses were MHC class I-restricted. These results provide an experimental foundation for further clinical investigations of DC vaccines encoding multiple TAA epitopes for metastatic PC.
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Affiliation(s)
- Jiang Chen
- Department of Gastroenterology, The Shenyang General Hospital of PLA, No. 83 Wenhua Road, Shenyang City, Liaoning, China
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12
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Brayer JB, Pinilla-Ibarz J. Developing strategies in the immunotherapy of leukemias. Cancer Control 2013; 20:49-59. [PMID: 23302907 DOI: 10.1177/107327481302000108] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND In the current treatment paradigms for leukemias, hematopoietic stem cell transplant (HSCT) is considered the best option with a curative potential although more often than not it simply delays disease progression. Advances are needed, both in current therapies and in the development of new strategies. Partly from studying the nuances of the curative potential of stem cell transplant, we have come to appreciate the relevance of the immune response and the potential of immunotherapy. METHODS This review article summarizes the recent advances in the field of immunology and immunotherapy for leukemia. RESULTS In passive immunotherapy, recent progress in chimeric T-cell antigen receptor technology has been encouraging. In active immunotherapy, a cancer vaccine may potentially enhance HSCT. An overview of various clinical studies of peptide vaccination strategies focusing on molecular targets such as the Wilms' tumor gene 1 (WT1), proteinase 3 (PR3), and receptor for hyaluronan acid-mediated motility (RHAMM) is provided. Cell-based vaccination strategies are also briefly explored. CONCLUSIONS The immune system clearly has the capacity to recognize and react to leukemic cells, and recent evidence directs our attention to the importance of mounting inflammatory and CD4 T-cell responses to complement and support the cytotoxic activity elicited by peptide vaccines.
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Affiliation(s)
- Jason B Brayer
- Malignant Hematology Program, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
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13
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Turksma AW, Bontkes HJ, Ruizendaal JJ, Scholten KBJ, Akershoek J, Rampersad S, Moesbergen LM, Cillessen SAGM, Santegoets SJAM, de Gruijl TD, Leemans CR, Meijer CJLM, Hooijberg E. Exploring dendritic cell based vaccines targeting survivin for the treatment of head and neck cancer patients. J Transl Med 2013; 11:152. [PMID: 23787039 PMCID: PMC3695847 DOI: 10.1186/1479-5876-11-152] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Accepted: 06/10/2013] [Indexed: 01/01/2023] Open
Abstract
Background New treatment modalities are needed for the treatment of cancers of the head and neck region (HNSCC). Survivin is important for the survival and proliferation of tumor cells and may therefore provide a target for immunotherapy. Here we focused on the ex vivo presence and in vitro induction of survivin specific T cells. Methods Tetramer staining and ELIspot assays were used to document the presence of survivin specific T cells in patient derived material, and to monitor the presence and persistence of survivin specific T cells after repeated in vitro stimulation with autologous dendritic cells. Results Ex vivo analysis showed the presence of survivin-specific T cells in the peripheral blood (by tetramer analysis) and in the draining lymph node (by ELIspot analysis) in a HNSCC and a locally advanced breast cancer patient respectively. However, we were unable to maintain isolated survivin specific T cells for prolonged periods of time. For the in vitro generation of survivin specific T cells, monocyte derived DC were electroporated with mRNA encoding full length survivin or a survivin mini-gene together with either IL21 or IL12 mRNA. Western blotting and immunohistochemical staining of dendritic cell cytospin preparations confirmed translation of the full length survivin protein. After repeated stimulation we observed an increase, followed by a decrease, of the number of survivin specific T cells. FACS sorted or limiting dilution cloned survivin specific T cells could not be maintained on feeder mix for prolonged periods of time. Protein expression analysis subsequently showed that activated, but not resting T cells contain survivin protein. Conclusions Here we have shown that survivin specific T cells can be detected ex vivo in patient derived material. Furthermore, survivin specific T cells can be induced in vitro using autologous dendritic cells with enforced expression of survivin and cytokines. However, we were unable to maintain enriched or cloned survivin specific T cells for prolonged periods of time. Endogenous expression of survivin in activated T cells and subsequent fratricide killing might explain our in vitro observations. We therefore conclude that survivin, although it is a universal tumor antigen, might not be the ideal target for immunotherapeutic strategies for the treatment of cancer of the head and neck.
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Affiliation(s)
- Annelies W Turksma
- Department of Pathology, VU University Medical Center-Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands
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14
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Ginzkey C, Eicker S, Marget M, Krause J, Brecht S, Westphal M, Hugo HH, Mehdorn M, Steinmann J, Hamel W. Incomplete tumour control following DNA vaccination against rat gliomas expressing a model antigen. Acta Neurochir (Wien) 2013; 155:51-8; discussion 59. [PMID: 23132370 PMCID: PMC3535398 DOI: 10.1007/s00701-012-1526-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Accepted: 10/11/2012] [Indexed: 11/26/2022]
Abstract
Background Vaccination against tumour-associated antigens is one approach to elicit anti-tumour responses. We investigated the effect of polynucleotide (DNA) vaccination using a model antigen (E. coli lacZ) in a syngeneic gliosarcoma model (9L). Methods Fisher 344 rats were vaccinated thrice by intramuscular injection of a lacZ-encoding or a control plasmid in weekly intervals. One week after the last vaccination, lacZ-expressing 9L cells were implanted into the striatum. Results After 3 weeks, in lacZ-vaccinated animals the tumours were significantly smaller than in control-vaccinated animals. In cytotoxic T cell assays lysis rates of >50 % could only be observed in a few of the lacZ-vaccinated animals. This response was directed against lacZ-expressing and parental 9L cells but not against syngeneic MADB 106 adenocarcinoma cells. In Elispot assays interferon-γ production was observed upon stimulation with 9LlacZ and 9L wild-type but not MADB 106 cells. This response was higher for lacZ-immunized animals. All animals revealed dense infiltrates with CD8+ lymphocytes and, to a lesser extent, with NK cells. CD25-staining indicated cells possibly associated with the maintenance of peripheral tolerance to self-antigens. All tumours were densely infiltrated by microglia consisting mostly of ramified cells. Only focal accumulation of macrophage-like cells expressing ED1, a marker for phagocytic activity, was observed. Conclusion Prophylactic DNA vaccination resulted in effective but incomplete suppression of brain tumour formation. Mechanisms other than cytotoxic T cell responses as measured in the generally used in vitro assays appear to play a role in tumour suppression.
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Affiliation(s)
- Christian Ginzkey
- Department of Neurosurgery, University of Schleswig-Holstein, Campus Kiel, Kiel, Germany
- Department of Oto-Rhino-Laryngology, Julius-Maximilian-University, Würzburg, Germany
| | - Sven Eicker
- Department of Neurosurgery, University of Schleswig-Holstein, Campus Kiel, Kiel, Germany
- Department of Neurosurgery, Heinrich-Heine-University, Düsseldorf, Germany
| | - Matthias Marget
- Institute of Immunology, University of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Jörg Krause
- Department of Neurosurgery, University of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Stefan Brecht
- Institute of Pharmacology, University of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Manfred Westphal
- Department of Neurosurgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany
- Klinik für Neurochirurgie, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Heinz-Hermann Hugo
- Department of Neurosurgery, University of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Maximilian Mehdorn
- Department of Neurosurgery, University of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Jörg Steinmann
- Institute of Immunology, University of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Wolfgang Hamel
- Department of Neurosurgery, University of Schleswig-Holstein, Campus Kiel, Kiel, Germany
- Department of Neurosurgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany
- Klinik für Neurochirurgie, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
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15
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Chen J, Li HY, Wang D, Zhao JJ, Guo XZ. Human dendritic cells transfected with amplified MUC1 mRNA stimulate cytotoxic T lymphocyte responses against pancreatic cancer in vitro. J Gastroenterol Hepatol 2011; 26:1509-18. [PMID: 21950745 DOI: 10.1111/j.1440-1746.2011.06778.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIM Mucin (MUC) 1 is an epithelial cell glycoprotein that is aberrantly overexpressed in many adenocarcinomas, including pancreatic cancer (PC), providing an ideal tumor-associated antigen and target for immunotherapy. In this study, we investigated whether the cytotoxic T lymphocytes (CTLs) induced by dendritic cells (DCs) transfected with amplified MUC1 mRNA could respond against PC in vitro. METHODS Amplified mRNA encoding MUC1 were transfected into DCs using electroporation with an optimized setting and the MUC1 expression were evaluated by quantitative real-time polymerase chain reaction and Western blot. The MUC1 specific CTL responses were measured using the standard chromium 51 (51Cr)-release assays and the interferon-γ release assay. RESULTS Dendritic cells could be transfected with amplified MUC1 mRNA efficiently. The transfected DCs were remarkably effective in stimulating MUC1-specific CTL responses in vitro. The function of MUC1 specific CTLs, induced by MUC1 mRNA-transfected DCs, was restricted by major histocompatibility complex (MHC) class I antigen presentation. CONCLUSION The CTL responses stimulated by DCs transfected with MUC1 mRNA could only recognize and lyse HLA-A2+/MUC1+ PC and other target cells under restriction by MHC class I-specific antigen presentation, providing a preclinical rationale for using MUC1 as a target structure for immunotherapeutic strategies against PC.
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Affiliation(s)
- Jiang Chen
- Department of Gastroenterology, The Shenyang General Hospital of People's Liberation Army, Shenyang City, Liaoning, China
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16
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Widenmeyer M, Griesemann H, Stevanović S, Feyerabend S, Klein R, Attig S, Hennenlotter J, Wernet D, Kuprash DV, Sazykin AY, Pascolo S, Stenzl A, Gouttefangeas C, Rammensee HG. Promiscuous survivin peptide induces robust CD4+ T-cell responses in the majority of vaccinated cancer patients. Int J Cancer 2011; 131:140-9. [PMID: 21858810 DOI: 10.1002/ijc.26365] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2011] [Accepted: 07/21/2011] [Indexed: 12/22/2022]
Abstract
CD4(+) T cells have been shown to be crucial for the induction and maintenance of cytotoxic T cell responses and to be also capable of mediating direct tumor rejection. Therefore, the anticancer therapeutic efficacy of peptide-based vaccines may be improved by addition of HLA class II epitopes to stimulate T helper cells. Survivin is an apoptosis inhibiting protein frequently overexpressed in tumors. Here we describe the first immunological evaluation of a survivin-derived CD4(+) T cell epitope in a multipeptide immunotherapy trial for prostate carcinoma patients. The survivin peptide is promiscuously presented by several human HLA-DRB1 molecules and, most importantly, is naturally processed by dendritic cells. In vaccinated patients, it was able to induce frequent, robust and multifunctional CD4(+) T cell responses, as monitored by IFN-γ ELISPOT and intracellular cytokine staining. Thus, this HLA-DR restricted epitope is broadly immunogenic and should be valuable for stimulating T helper cells in patients suffering from a wide range of tumors.
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Affiliation(s)
- Melanie Widenmeyer
- Department of Immunology, Institute for Cell Biology, Eberhard Karls University, Tübingen 72076, Germany
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17
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Ahmed MB, Shehata HH, Moussa M, Ibrahim TM. Prognostic significance of survivin and tumor necrosis factor-alpha in adult acute lymphoblastic leukemia. Clin Biochem 2011; 45:112-6. [PMID: 21933669 DOI: 10.1016/j.clinbiochem.2011.08.1147] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 08/23/2011] [Accepted: 08/24/2011] [Indexed: 10/17/2022]
Abstract
OBJECTIVES Acute lymphoblastic leukemia (ALL) is an aggressive cancer especially in adults as only 20-40% are cured with current treatment regimens. DESIGN AND METHODS We measured survivin and tumor necrosis factor-alpha (TNF-α) in serum of 30 ALL patients before and after induction therapy and compared to 30 age and sex matched normal adults. RESULTS Survivin at cutoff value 15.18 pg/mL was detected in all ALL patients before therapy but in only 83.33% after therapy and not detected in the control group; P<0.001. However TNF-α at cutoff value 60.05 pg/mL was detected in 90% ALL patients before therapy and 86.6% after therapy that was significantly higher than the control group (20%); P<0.001. Survivin showed a significant positive correlation with TNF-α (P<0.05), bone marrow blast cells (P<0.01), peripheral blast cells (P<0.05) and Philadelphia chromosome (P<0.01). CONCLUSIONS Survivin may have an important role in the development of acute leukemia and it could serve as a significant prognostic marker.
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18
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Smits ELJ, Lee C, Hardwick N, Brooks S, Van Tendeloo VFI, Orchard K, Guinn BA. Clinical evaluation of cellular immunotherapy in acute myeloid leukaemia. Cancer Immunol Immunother 2011; 60:757-69. [PMID: 21519825 PMCID: PMC11029703 DOI: 10.1007/s00262-011-1022-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2010] [Accepted: 04/08/2011] [Indexed: 02/07/2023]
Abstract
Immunotherapy is currently under active investigation as an adjuvant therapy to improve the overall survival of patients with acute myeloid leukaemia (AML) by eliminating residual leukaemic cells following standard therapy. The graft-versus-leukaemia effect observed following allogeneic haematopoietic stem cell transplantation has already demonstrated the significant role of immune cells in controlling AML, paving the way to further exploitation of this effect in optimized immunotherapy protocols. In this review, we discuss the current state of cellular immunotherapy as adjuvant therapy for AML, with a particular focus on new strategies and recently published results of preclinical and clinical studies. Therapeutic vaccines that are being tested in AML include whole tumour cells as an autologous source of multiple leukaemia-associated antigens (LAA) and autologous dendritic cells loaded with LAA as effective antigen-presenting cells. Furthermore, adoptive transfer of cytotoxic T cells or natural killer cells is under active investigation. Results from phase I and II trials are promising and support further investigation into the potential of cellular immunotherapeutic strategies to prevent or fight relapse in AML patients.
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Affiliation(s)
- Evelien L J Smits
- Laboratory of Experimental Haematology, Vaccine and Infectious Disease Institute, Antwerp University Hospital, University of Antwerp, Wilrijkstraat 10, 2650, Antwerp, Belgium.
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Abstract
Survivin, the smallest member of the inhibitors of apoptosis proteins (IAPs), plays an important role in the control of apoptosis, cell division, and cell migration/metastasis. Survivin is expressed and required for normal fetal development but is then generally no longer present in most adult tissues. However, reexpression of survivin is observed in numerous human cancers where presence of the protein is associated with enhanced proliferation, metastasis, poor prognosis, and decreased patient survival. Given the relatively selective expression in cancer cells, but not in normal tissue (tumor-associated antigen), and its importance in tumor cell biology, survivin has emerged as an attractive target for cancer treatment. Here, we discuss some aspects of survivin biology by focusing on why the protein appears to be so important for cancer cells and then discuss strategies that harness this dependence to eradicate tumors and situate survivin as a potential Achilles' heel of cancer.
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Affiliation(s)
- Alvaro Lladser
- Laboratory of Gene Immunotherapy, Fundacion Ciencia para la Vida, Santiago, Chile
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20
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Vonka V. Immunotherapy of chronic myeloid leukemia: present state and future prospects. Immunotherapy 2010; 2:227-41. [PMID: 20635930 DOI: 10.2217/imt.10.2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
In spite of the considerable successes that have been achieved in the treatment of chronic myeloid leukemia (CML), cure for the disease can only be obtained by the present means in a rather small minority of patients. During the past decade, considerable progress has been made in the understanding of the immunology of CML, which has raised hopes that this disease may be curable by supplementing the current targeted chemotherapy with immunotherapeutic approaches. More than ten small-scale clinical trials have been carried out with experimental vaccines predominantly based on the p210bcr-abl fusion protein. Their results suggested beneficial effects in some patients. Recent data obtained in human patients as well as in animal models indicate that the p210bcr-abl protein does not carry the immunodominant epitope(s). These observations, combined with the recognition of an ever increasing number of other immunogenic proteins in CML cells, strongly support the concept that gene-modified, cell-based vaccines containing the full spectrum of tumor antigens might be the most effective immunotherapeutic approach. Recently created mathematical models have provided important leads for the timing of the combination of targeted drug therapy with vaccine administration. A strategy of how targeted drug therapy might be combined with vaccination is outlined.
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Affiliation(s)
- Vladimír Vonka
- Department of Experimental Virology, Institutute of Hematology & Blood Transfusion, Prague, Czech Republic.
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21
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Ishizaki H, Manuel ER, Song GY, Srivastava T, Sun S, Diamond DJ, Ellenhorn JDI. Modified vaccinia Ankara expressing survivin combined with gemcitabine generates specific antitumor effects in a murine pancreatic carcinoma model. Cancer Immunol Immunother 2010; 60:99-109. [PMID: 20960189 DOI: 10.1007/s00262-010-0923-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2010] [Accepted: 09/30/2010] [Indexed: 01/13/2023]
Abstract
Survivin is overexpressed by 70-80% of pancreatic cancers, and is associated with resistance to chemotherapy and a poor prognosis. Gemcitabine has been a standard treatment for patients with advanced pancreatic cancer for a decade. Recent reports have demonstrated that gemcitabine treatment attenuates the tumor-suppressive environment by eliminating CD11b(+)/Gr-1(+) myeloid-derived suppressor cells (MDSCs). We hypothesize that a cancer vaccine targeting survivin can achieve enhanced efficacy when combined with gemcitabine. In this study, we tested this hypothesis using modified vaccinia Ankara (MVA) expressing full-length murine survivin. The poorly immunogenic mouse pancreas adenocarcinoma cell line, Pan02, which expresses murine survivin and is syngeneic to C57BL/6, was used for this study. Immunization with MVA-survivin resulted in a modest therapeutic antitumor effect on established Pan02 tumors. When administered with gemcitabine, MVA-survivin immunization resulted in significant tumor regression and prolonged survival. The enhanced vaccine efficacy was associated with decreased CD11b(+)/Gr-1(+) MDSCs. To analyze the survivin-specific immune response to MVA-survivin immunization, we utilized a peptide library of 15mers with 11 residues overlapping from full-length murine survivin. Splenocytes from mice immunized with MVA-survivin produced intracellular γ-interferon in response to in vitro stimulation with the overlapping peptide library. Increased survivin-specific CD8(+) T cells that specifically recognized the Pan02 tumor line were seen in mice treated with MVA-survivin and gemcitabine. These data suggest that vaccination with MVA-survivin in combination with gemcitabine represents an attractive strategy to overcome tumor-induced peripheral immune tolerance, and this effect has potential for clinical benefit in pancreatic cancer.
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Affiliation(s)
- Hidenobu Ishizaki
- Division of General and Oncologic Surgery, City of Hope National Medical Center, 1500 East Duarte Road, Duarte, CA 91010-3000, USA
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22
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Ginzkey C, Eicker SO, Marget M, Krause J, Brecht S, Westphal M, Hugo HH, Mehdorn HM, Steinmann J, Hamel W. Increase in tumor size following intratumoral injection of immunostimulatory CpG-containing oligonucleotides in a rat glioma model. Cancer Immunol Immunother 2010; 59:541-51. [PMID: 19798500 PMCID: PMC11029917 DOI: 10.1007/s00262-009-0771-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2009] [Accepted: 09/09/2009] [Indexed: 12/31/2022]
Abstract
The immunosuppressive environment of malignant gliomas is likely to suppress the anti-tumor activity of infiltrating microglial cells and lymphocytes. Macrophages and microglial cells may be activated by oligonucleotides containing unmethylated CpG-motifs, although their value in cancer immunotherapy has remained controversial. Following injection of CpG-containing oligonucleotides (ODN) into normal rat brain, we observed a local inflammatory response with CD8+ T cell infiltration, upregulation of MHC 2, and ED1 expression proving the immunogenic capacity of the CpG-ODN used. This was not observed with a control ODN mutated in the immunostimulatory sequence (m-CpG). To study their effect in a syngeneic tumor model, we implanted rat 9L gliosarcoma cells into the striatum of Fisher 344 rats. After 3 days, immunostimulatory CpG-ODN, control m-CpG-ODN, or saline was injected stereotactically into the tumors (day 3 group). In another group of animals (day 0 group), CpG-ODN were mixed with 9L cells prior to implantation without further treatment on day 3. After 3 weeks, the animals were killed and the brains and spleens were removed. Rather unexpectedly, the tumors in several of the animals treated with CpG-ODN (both day 0 and day 3 group) were larger than in saline or m-CpG-ODN treated control animals. The tumor size in CpG-ODN-treated animals was more variable than in both control groups. This was associated with inflammatory responses and necrosis which was observed in most tumors following CpG treatment. This, however, did not prevent excessive growth of solid tumor masses in the CpG-treated animals similar to the control-treated animals. Dense infiltration with microglial cells resembling ramified microglia was observed within the solid tumor masses of control- and CpG-treated animals. In necrotic areas (phagocytic), activation of microglial cells was suggested by ED1 expression and a more macrophage-like morphology. Dense lymphocytic infiltrates consisting predominantly of CD8+ T cells and fewer NK cells were detected in all tumors including the control-treated animals. Expression of perforin serving as a marker for T cell or NK cell activation was detected only on isolated cells in all treatment groups. Tumors of all treatment groups revealed CD25 expression indicating T cells presumed to maintain peripheral tolerance to self-antigens. Cytotoxic T cell assays with in vitro restimulated lymphocytes ((51)chromium release assay) as well as interferon-gamma production by fresh splenocytes (Elispot assay) revealed specific responses to 9L cells but not another syngeneic cell line (MADB 106 adenocarcinoma). Surprisingly, the lysis rates with lymphocytes from CpG-ODN-treated animals were lower compared to control-treated animals. The tumor size of individual animals did not correlate with the response in both immune assays. Taken together, our data support the immunostimulatory capacity of CpG-ODN in normal brain. However, intratumoral application proved ineffective in a rat glioma model. CpG-ODN treatment may not yield beneficial effects in glioma patients.
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MESH Headings
- Adjuvants, Immunologic/therapeutic use
- Animals
- Antigens, CD/metabolism
- Antigens, Differentiation, Myelomonocytic/metabolism
- Antiviral Agents/pharmacology
- Brain Neoplasms/immunology
- Brain Neoplasms/pathology
- CD8-Positive T-Lymphocytes/immunology
- Cell Movement
- Cytotoxicity, Immunologic
- Disease Models, Animal
- Gliosarcoma/immunology
- Gliosarcoma/pathology
- Histocompatibility Antigens Class II/metabolism
- Injections, Intralesional
- Interferon-gamma/pharmacology
- Lymphocytes, Tumor-Infiltrating
- Male
- Oligodeoxyribonucleotides/administration & dosage
- Rats
- Rats, Inbred F344
- Spleen/cytology
- Spleen/immunology
- T-Lymphocytes, Cytotoxic/immunology
- Tumor Cells, Cultured
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Affiliation(s)
- Christian Ginzkey
- Klinik für Neurochirurgie, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Germany
- Klinik für Hals-, Nasen- und Ohrenkrankheiten der Universität Würzburg, University of Würzburg, Würzburg, Germany
| | - Sven O. Eicker
- Klinik für Neurochirurgie, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Germany
| | - Matthias Marget
- Institut für Immunologie, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Germany
| | - Joerg Krause
- Klinik für Neurochirurgie, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Germany
| | - Stephan Brecht
- Institut für Pharmakologie, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Germany
| | - Manfred Westphal
- Neurochirurgische Klinik, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Hans H. Hugo
- Klinik für Neurochirurgie, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Germany
| | - H. M. Mehdorn
- Klinik für Neurochirurgie, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Germany
| | - Joerg Steinmann
- Institut für Immunologie, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Germany
| | - Wolfgang Hamel
- Klinik für Neurochirurgie, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Germany
- Neurochirurgische Klinik, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
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23
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Lladser A, Ljungberg K, Tufvesson H, Tazzari M, Roos AK, Quest AFG, Kiessling R. Intradermal DNA electroporation induces survivin-specific CTLs, suppresses angiogenesis and confers protection against mouse melanoma. Cancer Immunol Immunother 2010; 59:81-92. [PMID: 19526360 PMCID: PMC11030864 DOI: 10.1007/s00262-009-0725-4] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2009] [Accepted: 05/28/2009] [Indexed: 12/14/2022]
Abstract
Survivin is an intracellular tumor-associated antigen that is broadly expressed in a large variety of tumors and also in tumor associated endothelial cells but mostly absent in differentiated tissues. Naked DNA vaccines targeting survivin have been shown to induce T cell as well as humoral immune responses in mice. However, the lack of epitope-specific CD8+ T cell detection and modest tumor protection observed highlight the need for further improvements to develop effective survivin DNA vaccination approaches. Here, the efficacy of a human survivin DNA vaccine delivered by intradermal electroporation (EP) was tested. The CD8+ T cell epitope surv(20-28) restricted to H-2 Db was identified based on in-silico epitope prediction algorithms and binding to MHC class I molecules. Intradermal DNA EP of mice with a human survivin encoding plasmid generated CD8+ cytotoxic T lymphocyte (CTL) responses cross-reactive with the mouse epitope surv(20-28), as determined by intracellular IFN-gamma staining, suggesting that self-tolerance has been broken. Survivin-specific CTLs displayed an activated effector phenotype as determined by CD44 and CD107 up-regulation. Vaccinated mice displayed specific cytotoxic activity against B16 and peptide-pulsed RMA-S cells in vitro as well as against surv(20-28) peptide-pulsed target cells in vivo. Importantly, intradermal EP with a survivin DNA vaccine suppressed angiogenesis in vivo and elicited protection against highly aggressive syngeneic B16 melanoma tumor challenge. We conclude that intradermal EP is an attractive method for delivering a survivin DNA vaccine that should be explored also in clinical studies.
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MESH Headings
- Animals
- Cancer Vaccines/administration & dosage
- Cancer Vaccines/immunology
- Cytokines/biosynthesis
- Cytokines/immunology
- Electroporation
- Humans
- Inhibitor of Apoptosis Proteins
- Injections, Intradermal
- Melanoma, Experimental/immunology
- Melanoma, Experimental/pathology
- Melanoma, Experimental/prevention & control
- Melanoma, Experimental/therapy
- Mice
- Mice, Inbred C57BL
- Microtubule-Associated Proteins/immunology
- Neovascularization, Pathologic/immunology
- Neovascularization, Pathologic/therapy
- Survivin
- T-Lymphocytes, Cytotoxic/immunology
- Vaccines, DNA/administration & dosage
- Vaccines, DNA/immunology
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Affiliation(s)
- Alvaro Lladser
- Immune and Gene Therapy Laboratory, Department of Oncology and Pathology, Cancer Center Karolinska, Karolinska Institutet, Karolinska Hospital, Stockholm, Sweden.
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24
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Smits ELJM, Berneman ZN, Van Tendeloo VFI. Immunotherapy of acute myeloid leukemia: current approaches. Oncologist 2009; 14:240-52. [PMID: 19289488 DOI: 10.1634/theoncologist.2008-0165] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Following standard therapy that consists of chemotherapy with or without stem cell transplantation, both relapsed and refractory disease shorten the survival of acute myeloid leukemia (AML) patients. Therefore, additional treatment options are urgently needed, especially to fight residual AML cells. The identification of leukemia-associated antigens and the observation that administration of allogeneic T cells can mediate a graft-versus-leukemia effect paved the way to the development of active and passive immunotherapy strategies, respectively. The aim of these strategies is the eradication of AML cells by the immune system. In this review, an overview is provided of both active and passive immunotherapy strategies that are under investigation or in use for the treatment of AML. For each strategy, a critical view on the state of the art is given and future perspectives are discussed.
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Affiliation(s)
- Evelien L J M Smits
- Vaccine & Infectious Disease Institute (VIDI), Laboratory of Experimental Hematology, Faculty of Medicine, University of Antwerp, Antwerp, Belgium
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25
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Abstract
The applications of chemotherapy for the treatment of AML have been unchanged over the past three decades, with only 30% of patients demonstrating disease-free survival (DFS) [118]. Despite achieving CR following induction chemotherapy, the majority of patients relapse and succumb to their disease [6]. In view of the limitations encountered by cytarabine/anthracycline based regimes, attention has shifted to immunotherapy as a means to treat AML and provide significant long-term DFS. This chapter will discuss the role of the immune system and recent advances in immunotherapy for the treatment of AML, focusing on cellular and non-cellular approaches.
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26
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Narita M, Tochiki N, Saitoh A, Watanabe N, Kaji M, Satoh N, Yamahira A, Nakamura T, Masuko M, Furukawa T, Toba K, Fuse I, Aizawa Y, Takahashi M. Induction of antigen-specific cytotoxic T lymphocytes by using monocyte-derived DCs transfected with in vitro-transcribed WT1 or SART1 mRNA. Med Oncol 2008; 26:429-36. [DOI: 10.1007/s12032-008-9142-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2008] [Accepted: 11/20/2008] [Indexed: 10/21/2022]
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27
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In vitro inducing effect of dendritic cells cotransfected with survivin and granulocyte-macrophage colony-stimulating factor on cytotoxic T cell to kill leukemic cells. Chin Med J (Engl) 2008. [DOI: 10.1097/00029330-200811010-00014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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28
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Schaue D, Comin-Anduix B, Ribas A, Zhang L, Goodglick L, Sayre JW, Debucquoy A, Haustermans K, McBride WH. T-cell responses to survivin in cancer patients undergoing radiation therapy. Clin Cancer Res 2008; 14:4883-90. [PMID: 18676762 DOI: 10.1158/1078-0432.ccr-07-4462] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE The goal of this study was to determine if radiation therapy (RT) of human cancer enhances or diminishes tumor-specific T-cell reactivity. This is important if immunotherapy is to be harnessed to improve the outcome of cancer radiotherapy. EXPERIMENTAL DESIGN Lymphocytes were isolated from colorectal cancer (CRC) patients before, during, and after presurgical chemoradiotherapy. Similar samples were taken from prostate cancer patients receiving standard RT. The level of CD8(+) T cells capable of binding tetramers for the tumor-associated antigen survivin, which is overexpressed in both cancer types, was enumerated in HLA-A*0201 patient samples. CD4(+), CD25(high), Foxp3(+) cells were also enumerated to evaluate therapy-induced changes in T(regulatory) cells. For CRC patients, most of whom were enrolled in a clinical trial, pathologic response data were available, as well as biopsy and resection specimens, which were stained for cytoplasmic and intranuclear survivin. RESULTS Survivin-specific CD8(+) T lymphocytes were detected in the peripheral blood of CRC and prostate cancer patients and increased after therapy in some, but not all, patients. Increases were more common in CRC patients whose tumor was downstaged after chemoradiotherapy. Biopsy specimens from this cohort generally had higher nuclear to cytoplasmic survivin expression. T(regulatory) cells generally increased in the circulation following therapy but only in CRC patients. CONCLUSION This study indicates that RT may increase the likelihood of some cancer patients responding to immunotherapy and lays a basis for future investigations aimed at combining radiation and immunotherapy.
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Affiliation(s)
- Dörthe Schaue
- Department of Radiation Oncology, University of California at Los Angeles, Los Angeles, California 90095-1714, USA
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29
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Langemeijer SMC, de Graaf AO, Jansen JH. IAPs as therapeutic targets in haematological malignancies. Expert Opin Ther Targets 2008; 12:981-93. [DOI: 10.1517/14728222.12.8.981] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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30
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Efficient generation of survivin-specific cytotoxic T lymphocytes from healthy persons in vitro: quantitative and qualitative effects of CD4+ T cells. Vaccine 2008; 26:3987-97. [PMID: 18584926 DOI: 10.1016/j.vaccine.2008.05.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2008] [Revised: 04/22/2008] [Accepted: 05/15/2008] [Indexed: 11/22/2022]
Abstract
For the adoptive immunotherapy and the study of cytotoxic T lymphocytes (CTLs) in human, efficient in vitro generation of CTLs is needed. However, it is still difficult to induce T cells specific for naïve antigens in vitro even though dendritic cells (DCs) as potent APCs are used. In this study, we investigated quantitative and qualitative effects of CD4+ T cells during in vitro stimulation of CD8+ T cells from healthy donors using DCs transduced with adenovirus vector expressing human survivin (Adv-survivin). CTLs were not efficiently induced in the absence of CD4+ T cells or in CD25+ depleted CD4+ T cells. When the ratio of CD4+:CD8+ T cells was quantitatively decreased from 2:1 to 1:2, proliferation of CTLs specific for survivin was gradually increased. Because DCs pulsed with HCMV pp65 protein could activate CD4+ T cells to secrete Th1 cytokines, the use of pp65 protein as an adjuvant induced higher numbers and frequencies of CTLs. Furthermore, Th1 conditioning of CD4+ T cells augmented this generation of CTLs. These results suggest that both quantitative and qualitative modulation of CD4+ T cells including the number and Th1 polarization may be required for the efficient induction of CTLs specific for tumor antigens in vitro.
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31
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Ciesielski MJ, Kozbor D, Castanaro CA, Barone TA, Fenstermaker RA. Therapeutic effect of a T helper cell supported CTL response induced by a survivin peptide vaccine against murine cerebral glioma. Cancer Immunol Immunother 2008; 57:1827-35. [PMID: 18438666 DOI: 10.1007/s00262-008-0510-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2008] [Accepted: 03/24/2008] [Indexed: 12/23/2022]
Abstract
Survivin is a tumor-associated antigen (TAA) that has significant potential for use as a cancer vaccine target. To identify survivin epitopes that might serve as targets for CTL-mediated, anti-tumor responses, we evaluated a series of survivin peptides with predicted binding to mouse H2-K(b) and human HLA-A*0201 antigens in peptide-loaded dendritic cell (DC) vaccines. H2-K(b)-positive, C57BL/6 mice were vaccinated using syngeneic, peptide-loaded DC2.4 cells. Splenocytes from vaccinated mice were screened by flow cytometry for binding of dimeric H2-K(b):Ig to peptide-specific CD8+ T cells. Two survivin peptides (SVN(57-64) and SVN(82-89)) generated specific CD8+ T cells. We chose to focus on the SVN(57-64) peptide because that region of the molecule is 100% homologous to human survivin. A larger peptide (SVN(53-67)), containing multiple class I epitopes, and a potential class II ligand, was able to elicit both CD8+ CTL and CD4+ T cell help. We tested the SVN(53-67) 15-mer peptide in a therapeutic model using a peptide-loaded DC vaccine in C57BL/6 mice with survivin-expressing GL261 cerebral gliomas. This vaccine produced significant CTL responses and helper T cell-associated cytokine production, resulting in a significant prolongation of survival. The SVN(53-67) vaccine was significantly more effective than the SVN(57-64) core epitope as a cancer vaccine, emphasizing the potential benefit of incorporating multiple class I epitopes and associated cytokine support within a single peptide.
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Affiliation(s)
- Michael J Ciesielski
- Department of Neurosurgery, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, 14263, USA.
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32
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Kreiter S, Selmi A, Diken M, Sebastian M, Osterloh P, Schild H, Huber C, Türeci O, Sahin U. Increased antigen presentation efficiency by coupling antigens to MHC class I trafficking signals. THE JOURNAL OF IMMUNOLOGY 2008; 180:309-18. [PMID: 18097032 DOI: 10.4049/jimmunol.180.1.309] [Citation(s) in RCA: 117] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Genetic modification of vaccines by linking the Ag to lysosomal or endosomal targeting signals has been used to route Ags into MHC class II processing compartments for improvement of CD4+ T cell responses. We report in this study that combining an N-terminal leader peptide with an MHC class I trafficking signal (MITD) attached to the C terminus of the Ag strongly improves the presentation of MHC class I and class II epitopes in human and murine dendritic cells (DCs). Such chimeric fusion proteins display a maturation state-dependent subcellular distribution pattern in immature and mature DCs, mimicking the dynamic trafficking properties of MHC molecules. T cell response analysis in vitro and in mice immunized with DCs transfected with Ag-encoding RNA showed that MITD fusion proteins have a profoundly higher stimulatory capacity than wild-type controls. This results in efficient expansion of Ag-specific CD8+ and CD4+ T cells and improved effector functions. We used CMVpp65 and NY-ESO-1 Ags to study preformed immune responses in CMV-seropositive individuals and cancer patients. We show that linking these Ags to the MITD trafficking signal allows simultaneous, polyepitopic expansion of CD8+ and CD4+ T cells, resulting in distinct CD8+ T cell specificities and a surprisingly broad and variable Ag-specific CD4+ repertoire in different individuals.
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Affiliation(s)
- Sebastian Kreiter
- Department of Internal Medicine III, Johannes-Gutenberg University, Mainz, Germany
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33
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Paydas S, Ergin M, Erdogan S, Seydaoglu G, Yavuz S, Disel U. Thrombospondin-1 (TSP-1) and Survivin (S) expression in non-Hogkin's lymphomas. Leuk Res 2008; 32:243-50. [PMID: 17706282 DOI: 10.1016/j.leukres.2007.06.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2007] [Revised: 01/21/2007] [Accepted: 06/26/2007] [Indexed: 10/23/2022]
Abstract
Survivin (S) is a member of inhibitor of apoptosis family (IAP) and is expressed in the majority of malignant tumors but undetectable in normal differentiated adult tissues. S is an encouraging target for cancer therapy. TSP-1 is a multifunctional protein regulating cell growth, motility and apoptosis in both physiological and pathological conditions. The role of TSP-1 in cancer progression remains controversial. We aimed to determine the pathogenetic and prognostic role of TSP-1 and S in non-Hodgkin's lymphomas (NHL). S and TSP-1 expressions were looked for in 177 cases with NHL. S was found to be positive in 94 of the cases (53%). TSP-1 was found to be positive in 31 of the cases (17.5%). There was a strong association between S and TSP-1 and also aggressive histology with S and TSP-1. The overall survival (OS) times were longer in cases without S expression than cases with S expression (p=0.0514). Although the OS was shorter in TSP-1 expressing cases as compared with TSP-1 (-) cases, difference was not significant (p=0.2428). In conclusion, S and TSP-1 expressions were detected in 53 and 17.5% of the cases with NHL, and are associated with aggressive histology and shorter OS.
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Affiliation(s)
- Semra Paydas
- Department of Oncology, Cukurova University Faculty of Medicine, Turkey.
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34
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Cho HI, Kim EK, Park SY, Lee SK, Hong YK, Kim TG. Enhanced induction of anti-tumor immunity in human and mouse by dendritic cells pulsed with recombinant TAT fused human survivin protein. Cancer Lett 2007; 258:189-98. [DOI: 10.1016/j.canlet.2007.08.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2007] [Revised: 08/27/2007] [Accepted: 08/31/2007] [Indexed: 12/22/2022]
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Abstract
Immune cells with specific functions and abilities are vital to cancer treatment prevention. Although there have been many accomplishments made in the areas of immunotherapy and immunobiology of myeloma, there are still many obstacles in the way of conceptualizing the interrelationships between immune cells and tumor cells. To provide better understanding of these concepts and to move toward improved therapies for myeloma, cell-based therapeutic approaches should be developed.
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Affiliation(s)
- Nikhil C. Munshi
- Associate Director, Jerome Lipper Multiple Myeloma Center, Dana-Farber Cancer Institute, Boston, MA
- Associate Professor, Department of Medicine, Harvard Medical School, Boston, MA
- Staff Physician, VA Boston Healthcare System, Harvard Medical School, Boston, MA
| | - Rao H. Prabhala
- Instructor, Department of Medicine, Brigham and Women's Hospital/Dana Farber Cancer Institute, Boston, MA
- Research Health Scientist, VA Boston Healthcare System, Harvard Medical School, Boston, MA
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36
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Friedrichs B, Siegel S, Andersen MH, Schmitz N, Zeis M. Survivin-derived peptide epitopes and their role for induction of antitumor immunity in hematological malignancies. Leuk Lymphoma 2007; 47:978-85. [PMID: 16840186 DOI: 10.1080/10428190500464062] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The immune system's ability to detect and destroy tumor cells offers an attractive approach to broaden the spectrum of cancer therapies. Survivin, a member of the apoptosis inhibitor protein family, is a tumor antigen, overexpressed in human cancers giving rise to peptides eliciting spontaneous CD8+ and CD4+ responses. Due to its dual function, blockade of apoptosis and regulation of cell division, survivin is directly associated with tumor survival and therefore regarded as an ideal target structure for immunotherapeutic approaches. Strong evidence that survivin acts as a T-cell activating antigen has been collected in recent years and the first clinical trials using survivin-based vaccines aim to prove its therapeutic efficacy in the clinic. We focus on the role of survivin in hematological malignancies, including a list of survivin-derived peptides eliciting potent immune responses.
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Affiliation(s)
- Birte Friedrichs
- General Hospital St Georg, Department of Hematology, Hamburg, Germany.
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37
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Zhu K, Qin H, Cha SC, Neelapu SS, Overwijk W, Lizee GA, Abbruzzese JL, Hwu P, Radvanyi L, Kwak LW, Chang DZ. Survivin DNA vaccine generated specific antitumor effects in pancreatic carcinoma and lymphoma mouse models. Vaccine 2007; 25:7955-61. [PMID: 17933439 DOI: 10.1016/j.vaccine.2007.08.050] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2007] [Revised: 08/20/2007] [Accepted: 08/27/2007] [Indexed: 12/22/2022]
Abstract
We investigated the antitumor effect of survivin DNA vaccine in murine pancreatic and lymphoma models, and if xenogenic survivin can generate stronger immune response. We found that mice vaccinated with either human or mouse survivin DNA have significantly slower tumor growth and longer survival than those vaccinated with vector DNA. There was no significant difference between groups that received human and mouse survivin DNA. Lymphocyte infiltration was greater in tumors of mice immunized with survivin DNA than in tumors of control mice. We conclude that survivin DNA vaccine generated specific antitumor effects with increased lymphocyte infiltration at the tumor sites.
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Affiliation(s)
- Kuichun Zhu
- Department of Gastrointestinal Medical Oncology, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, United States
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38
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Kim CH, Woo SJ, Park JS, Kim HS, Park MY, Park SD, Hong YK, Kim TG. Enhanced antitumour immunity by combined use of temozolomide and TAT-survivin pulsed dendritic cells in a murine glioma. Immunology 2007; 122:615-22. [PMID: 17645496 PMCID: PMC2266048 DOI: 10.1111/j.1365-2567.2007.02680.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Although chemotherapy remains among the best treatment options for most cancers, adjuvant therapies such as dendritic cell (DC)-based immunotherapy have been added to treatment protocols to destroy residual tumour cells. Combination treatment with low-dose temozolomide (TMZ) chemotherapy followed by vaccination with TAT-survivin-pulsed DCs enhanced T-cell responses specific for survivin and improved survival rate, as compared with DC alone or TMZ alone. Moreover, antigen-specific immunity appears to be mediated by CD8(+) T cells, as determined by in vitro T-cell subset depletion. These studies demonstrated that a combination of low-dose TMZ chemotherapy and TAT-based DC immunotherapy may be a novel strategy for safe and effective treatment of malignant gliomas.
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Affiliation(s)
- Chang-Hyun Kim
- Catholic Research Institute of Medical Science, Catholic University of Korea, Seoul, South Korea
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39
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Morgenroth A, Cartellieri M, Schmitz M, Günes S, Weigle B, Bachmann M, Abken H, Rieber EP, Temme A. Targeting of tumor cells expressing the prostate stem cell antigen (PSCA) using genetically engineered T-cells. Prostate 2007; 67:1121-31. [PMID: 17492652 DOI: 10.1002/pros.20608] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND Curative therapeutic options for minimal residual disease or advanced tumor stages in prostate cancer (PCa) are still missing. Adoptive transfer of cytotoxic T-cells that have been polyclonally rendered tumor-specific by genetic engineering appears to be a promising immunotherapeutic strategy. Among the numerous prostate tissue/tumor antigens identified during the last years, the "prostate stem cell antigen" (PSCA) is an attractive immunotherapeutic target. It is broadly expressed on the surface of primary PCa cells as well as on PCa metastases. METHODS To generate a chimeric T-cell receptor (TCR) recognizing PSCA, a monoclonal anti-PSCA antibody was raised and a single-chain fragment (scFv) was prepared. The resulting anti-PSCA scFv 7F5 was fused to the beta2 constant region derived from the beta-chain of a TCR and to the CD3zeta-signaling domain. RESULTS The chimeric alpha-PSCA-beta2/CD3zeta-TCR, expressed in Jurkat cells, was phosphorylated in the ITAMs of the CD3-zeta chain upon cross-linking by insolublized PSCA. When transduced into a mouse cytotoxic T-cell line, the chimeric receptor specifically activated cytotoxicity against PSCA-positive tumor cells. CONCLUSIONS We developed a functional chimeric TCR against PSCA for treatment of PCa. The chimeric alpha-PSCA-beta2/CD3zeta-TCR might now be used for arming human cytotoxic T-cells for further studies towards a clinical treatment of PCa.
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MESH Headings
- Animals
- Antibodies, Monoclonal/immunology
- Antibodies, Monoclonal/metabolism
- Antigens, Neoplasm
- Cell Line
- Cell Line, Tumor
- Chimera/genetics
- Chimera/immunology
- Chimera/metabolism
- GPI-Linked Proteins
- Genetic Engineering
- Humans
- Immunotherapy/methods
- Jurkat Cells
- Male
- Membrane Glycoproteins/genetics
- Membrane Glycoproteins/immunology
- Membrane Glycoproteins/metabolism
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C3H
- Neoplasm Proteins/genetics
- Neoplasm Proteins/immunology
- Neoplasm Proteins/metabolism
- Prostatic Neoplasms/immunology
- Prostatic Neoplasms/metabolism
- Prostatic Neoplasms/therapy
- Receptors, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell/immunology
- Receptors, Antigen, T-Cell/metabolism
- T-Lymphocytes, Cytotoxic/cytology
- T-Lymphocytes, Cytotoxic/metabolism
- T-Lymphocytes, Cytotoxic/pathology
- Transfection
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Affiliation(s)
- Agnieszka Morgenroth
- Institute of Immunology, Medical Faculty Carl Gustav Carus, Technical University Dresden, Dresden, Germany
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40
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Brauer KM, Werth D, von Schwarzenberg K, Bringmann A, Kanz L, Grünebach F, Brossart P. BCR-ABL Activity Is Critical for the Immunogenicity of Chronic Myelogenous Leukemia Cells. Cancer Res 2007; 67:5489-97. [PMID: 17545631 DOI: 10.1158/0008-5472.can-07-0302] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Chronic myelogenous leukemia (CML) is a myeloproliferative disorder caused by excessive granulopoiesis due to the formation of the constitutively active tyrosine kinase BCR-ABL. An effective drug against CML is imatinib mesylate, a tyrosine kinase inhibitor acting on Abl kinases, c-KIT, and platelet-derived growth factor receptor. Recently, a study revealed that patients treated with imatinib showed impaired CTL responses compared with patients treated with IFN-alpha, which might be due to a treatment-induced reduction in immunogenicity of CML cells or immunosuppressive effects. In our study, we found that inhibition of BCR-ABL leads to a down-regulation of immunogenic antigens on the CML cells in response to imatinib treatment, which results in the inhibition of CML-directed immune responses. By treating CML cells with imatinib, we could show that the resulting inhibition of BCR-ABL leads to a decreased expression of tumor antigens, including survivin, adipophilin, hTERT, WT-1, Bcl-x(L), and Bcl-2 in correlation to a decreased development of CML-specific CTLs. In contrast, this reduction in immunogenicity was not observed when a CML cell line resistant to the inhibitory effects of imatinib was used, but could be confirmed by transfection with specific small interfering RNA against BCR-ABL or imatinib treatment of primary CML cells.
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MESH Headings
- Antigens, Neoplasm/biosynthesis
- Antigens, Neoplasm/immunology
- Antineoplastic Agents/pharmacology
- Benzamides
- Dendritic Cells/immunology
- Down-Regulation
- Fusion Proteins, bcr-abl/antagonists & inhibitors
- Fusion Proteins, bcr-abl/immunology
- Humans
- Imatinib Mesylate
- K562 Cells
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/immunology
- Lymphocyte Activation/drug effects
- Piperazines/pharmacology
- Pyrimidines/pharmacology
- RNA, Small Interfering/genetics
- T-Lymphocytes, Cytotoxic/drug effects
- T-Lymphocytes, Cytotoxic/immunology
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Affiliation(s)
- Katharina M Brauer
- Department of Hematology, Oncology, Immunology, Rheumatology, and Pulmonology, University of Tübingen, Tübingen, Germany
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41
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Piesche M, Hildebrandt Y, Zettl F, Chapuy B, Schmitz M, Wulf G, Trümper L, Schroers R. Identification of a promiscuous HLA DR-restricted T-cell epitope derived from the inhibitor of apoptosis protein survivin. Hum Immunol 2007; 68:572-6. [PMID: 17584578 DOI: 10.1016/j.humimm.2007.03.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2006] [Revised: 02/04/2007] [Accepted: 03/12/2007] [Indexed: 12/22/2022]
Abstract
The inhibitor of apoptosis protein survivin is a promising tumor-associated antigen specifically recognized by CD8+ cytotoxic effector T-lymphocytes (CTL). To improve current vaccines that aim to induce survivin-specific CTL, it is necessary to study the role of CD4+ T-helper (TH) and CD4+ T-regulatory (Treg) cells. Because both TH and Treg cells recognize antigens in the context of HLA-class II molecules, identification of HLA class II-associated peptide epitopes from survivin is required. Here, we analyzed T-cell responses against survivin using synthetic peptides predicted to serve as HLA-DR-restricted epitopes. Six peptides were shown to induce CD4+ T-cell responses, restricted by HLA-DR molecules. For one peptide epitope, SVN10, T-cell clones were demonstrated to be capable of recognizing naturally processed antigen. SVN10-specific T cells could be stimulated from the blood of healthy individuals and cancer patients with multiple HLA-DR genotypes. Thus the identified SVN10 epitope can be used to study the role of CD4+ TH and Treg cells in immune responses and possibly be included in a multivalent peptide vaccine against survivin.
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Affiliation(s)
- Matthias Piesche
- Department of Hematology and Oncology, Georg-August-University Göttingen, Göttingen, Germany
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42
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Ito Y, Demachi-Okamura A, Ohta R, Akatsuka Y, Nishida K, Tsujimura K, Morishima Y, Takahashi T, Kuzushima K. Full-length EBNA1 mRNA-transduced dendritic cells stimulate cytotoxic T lymphocytes recognizing a novel HLA-Cw*0303- and -Cw*0304-restricted epitope on EBNA1-expressing cells. J Gen Virol 2007; 88:770-780. [PMID: 17325349 DOI: 10.1099/vir.0.82519-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Epstein–Barr virus (EBV)-encoded nuclear antigen 1 (EBNA1) is an attractive target for immunotherapy against EBV-associated malignancies because it is expressed in all EBV-positive cells. Although CD8+ cytotoxic T-lymphocyte (CTL) epitope presentation is largely prevented by its glycine–alanine-repeat domain (GAr), the use of mRNA-transduced dendritic cells (DCs) would offer the advantage of priming EBNA1-specific CTLs. After stimulation with GAr-containing EBNA1-transduced monocyte-derived DCs, two EBNA1-specific CTL clones, B5 and C6, were isolated successfully from a healthy donor. These CTLs recognize peptides in the context of HLA-B*3501 and HLA-Cw*0303, respectively. A novel epitope, FVYGGSKTSL, was then identified, presented by both HLA-Cw*0303 and -Cw*0304, which are expressed by >35 % of Japanese, >20 % of Northern Han Chinese and >25 % of Caucasians. The mixed lymphocyte–peptide culture method revealed that FVYGGSKTSL-specific CTL-precursor frequencies in HLA-Cw*0303- or -Cw*0304-positive donors were between 1×10−5 and 1×10−4 CD8+ T cells. Moreover, both CTL clones inhibited growth of HLA-matched EBV-transformed B lymphocytes in vitro, and B5 CTLs produced a gamma interferon response to EBNA1-expressing gastric carcinoma cells in the context of HLA-Cw*0303. These data demonstrate that EBNA1 mRNA-transduced DCs may be useful tools for inducing EBNA1-specific CTLs that might be of clinical interest for CTL therapy of EBV-associated malignancies.
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Affiliation(s)
- Yoshinori Ito
- Division of Immunology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | | | - Rieko Ohta
- Division of Immunology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Yoshiki Akatsuka
- Division of Immunology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Keiko Nishida
- Division of Immunology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Kunio Tsujimura
- Division of Immunology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Yasuo Morishima
- Department of Cell Therapy, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Toshitada Takahashi
- Division of Immunology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Kiyotaka Kuzushima
- Division of Immunology, Aichi Cancer Center Research Institute, Nagoya, Japan
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43
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Giannopoulos K, Schmitt M. Targets and strategies for T-cell based vaccines in patients with B-cell chronic lymphocytic leukemia. Leuk Lymphoma 2007; 47:2028-36. [PMID: 17071473 DOI: 10.1080/10428190600709721] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
T-cell based immunotherapies might be a novel option for the treatment of B-cell chronic lymphocytic leukemia (B-CLL), a disease characterized by a prolonged natural course. Different strategies of active immunotherapy have been tested in vitro to enhance a specific T-cell response against tumor cells and an anti-leukemic effect has been observed in B-CLL patients after allogenic stem cell transplantation. Several antigens have been characterized as tumor/leukemia associated antigens (T/LAAs) in B-CLL with the potential to elicit specific anti-tumor response encompassing idiotype immunoglobulin, oncofetal antigen-immature laminin receptor protein (OFAiLRP), survivin, as well as fibromodulin, the receptor for hyaluronic acid mediated motility (RHAMM/CD168) and the murine double-minute 2 oncoprotein (MDM2). This study presents an overview of possible targets and genetherapeutical maneuvers for future immunotherapies of B-CLL patients and summarizes recent clinical vaccination trials with dendritic cells (DCs) for B-CLL.
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MESH Headings
- Animals
- Antigens, Neoplasm/chemistry
- Antigens, Neoplasm/metabolism
- Cancer Vaccines
- Dendritic Cells/cytology
- Humans
- Immunotherapy/methods
- Killer Cells, Natural/metabolism
- Leukemia, Lymphocytic, Chronic, B-Cell/prevention & control
- Leukemia, Lymphocytic, Chronic, B-Cell/therapy
- Models, Biological
- Monocytes/metabolism
- T-Lymphocytes/metabolism
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44
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Park SD, Kim CH, Kim CK, Park JA, Sohn HJ, Hong YK, Kim TG. Cross-priming by temozolomide enhances antitumor immunity of dendritic cell vaccination in murine brain tumor model. Vaccine 2007; 25:3485-91. [PMID: 17275143 DOI: 10.1016/j.vaccine.2006.12.060] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2006] [Revised: 11/28/2006] [Accepted: 12/06/2006] [Indexed: 10/23/2022]
Abstract
Although chemotherapy remains among the best treatment options for most cancers, adjuvant therapies such as dendritic cell (DC)-based immunotherapy have been added to treatment protocols to destroy residual tumor cells. IFN-gamma secreting T cells specific for survivin was found after temozolomide (TMZ) treatment in C57BL/6 mice intracranial (i.c.) inoculated with GL26 cells. Furthermore, combination treatment with low-dose TMZ (2.5mg/kg/day, i.p.) chemotherapy followed by vaccination with survivin RNA-transfected DCs (1 x 10(6)cells/mouse, s.c.) enhanced T cells responses specific for survivin and improved survival rate compared with DC vaccination alone or TMZ treatment alone in tumor inoculated mice. However, these enhancements of T cells responses by TMZ treatment were not observed in mice without tumor inoculation. These results suggested that cross-priming by TMZ may enhance antitumor immunity of DC vaccination in murine brain tumor model.
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Affiliation(s)
- Sung-Dong Park
- Department of Neurosurgery, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul 137-701, Republic of Korea
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45
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Charalambous A, Oks M, Nchinda G, Yamazaki S, Steinman RM. Dendritic cell targeting of survivin protein in a xenogeneic form elicits strong CD4+ T cell immunity to mouse survivin. THE JOURNAL OF IMMUNOLOGY 2007; 177:8410-21. [PMID: 17142738 DOI: 10.4049/jimmunol.177.12.8410] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
To determine whether strong CD4+ T cell immunity could be induced to a nonmutated self protein that is important for tumorigenesis, we selectively targeted the xenogeneic form of survivin, a survival protein overexpressed in tumors, to maturing dendritic cells in lymphoid tissues. Dendritic cell targeting via the DEC205 receptor in the presence of anti-CD40 and poly(I:C) as maturation stimuli, induced strong human and mouse survivin-specific CD4+ T cell responses, as determined by IFN-gamma, TNF-alpha, and IL-2 production, as well as the development of lytic MHC class II-restricted T cells and memory. Immunity was enhanced further by depletion of CD25+foxp3+ cells before vaccination. anti-DEC205-human survivin was superior in inducing CD4+ T cell responses relative to other approaches involving survivin plasmid DNA or survivin peptides with adjuvants. However, we were unable to induce CD8+ T cell immunity to survivin by two doses of DEC205-targeted survivin or the other strategies. Therefore, significant CD4+ T cell immunity to a self protein that is overexpressed in most human cancers can be induced by DEC205 targeting of the Ag in its xenogeneic form to maturing DCs.
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Affiliation(s)
- Anna Charalambous
- Laboratory of Cellular Physiology and Immunology, Chris Browne Center for Immunology and Immune Diseases, The Rockefeller University, 1230 York Avenue, New York, NY 10021, USA
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46
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Coughlin CM, Fleming MD, Carroll RG, Pawel BR, Hogarty MD, Shan X, Vance BA, Cohen JN, Jairaj S, Lord EM, Wexler MH, Danet-Desnoyers GAH, Pinkus JL, Pinkus GS, Maris JM, Grupp SA, Vonderheide RH. Immunosurveillance and Survivin-Specific T-Cell Immunity in Children With High-Risk Neuroblastoma. J Clin Oncol 2006; 24:5725-34. [PMID: 17179106 DOI: 10.1200/jco.2005.05.3314] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
PurposeTumor immunosurveillance influences oncogenesis and tumor growth, but it remains controversial whether clinical failure of immunosurveillance is a result of lymphocyte dysfunction or tumor escape. In this study, our goal was to characterize the physiology of tumor immunosurveillance in children with high-risk neuroblastoma (HR-NBL).Patients and MethodsImmunohistopathologic studies were carried out on 26 tumor samples from a cohort of HR-NBL patients diagnosed at Children's Hospital of Philadelphia for the 2-year period from May 2003 to May 2005. Blood from nine HLA-A2+patients in this cohort was analyzed for T cells specific for the antiapoptotic protein survivin.ResultsSurvivin protein was expressed by 26 of 26 tumors. In HLA-A2+patients, circulating cytotoxic T lymphocytes (CTLs) specific for survivin were detected by peptide/major histocompatibility complex tetramer analysis in the blood of eight of nine children with HR-NBL at the time of diagnosis. Rather than being selectively rendered anergic in vivo, circulating survivin-specific CTLs were highly functional as shown by cytotoxicity and interferon gamma enzyme-linked immunospot assays in six of nine patients. Survivin-specific CD107a mobilization by T cells was found in five of five patients. By immunohistochemistry, tumor-infiltrating T cells were few or absent in 26 of 26 tumors.ConclusionChildren with HR-NBL harbor robust cellular immune responses to the universal tumor antigen survivin at the time of diagnosis, but intratumoral T cells are strikingly rare, suggesting a failure of cellular immunosurveillance. Efforts to develop novel therapies that increase T-cell trafficking into tumor nests are warranted.
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Affiliation(s)
- Christina M Coughlin
- Abramson Family Cancer Research Institute, Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA
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47
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Ciesielski MJ, Apfel L, Barone TA, Castro CA, Weiss TC, Fenstermaker RA. Antitumor effects of a xenogeneic survivin bone marrow derived dendritic cell vaccine against murine GL261 gliomas. Cancer Immunol Immunother 2006; 55:1491-503. [PMID: 16485128 PMCID: PMC11030856 DOI: 10.1007/s00262-006-0138-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2005] [Accepted: 12/30/2005] [Indexed: 11/30/2022]
Abstract
Survivin is a member of the inhibitor of apoptosis protein family. Gliomas and many other tumors express survivin at high levels; whereas, normal fully differentiated cells generally do not. Therefore, survivin represents a tumor-specific target for cancer vaccine therapy. It has been shown that it is possible to produce a MHC-I-restricted cellular immunologic response to survivin vaccines. To study differences in immunogenicity between murine and human survivin proteins, we vaccinated C57BL/6 mice with bone marrow dendritic cells (BMDC) transfected with expression vectors containing the murine and human survivin genes. Mice vaccinated with BMDCs expressing a truncated human survivin protein developed cytotoxic T lymphocyte to subcutaneous GL261 glioma cells and exhibited prolonged tumor-free survival compared to mice vaccinated with BMDCs transfected with vector alone (P<0.01). While mice challenged with intracerebral GL261 cells had increased survival, no cures were observed. In contrast, vaccinated mice that fully resisted subcutaneous tumor challenge were rendered resistant to intracerebral GL261 re-challenge. BMDCs transfected with the full-length human survivin molecule were significantly more effective at prolonging survival than BMDCs expressing the full-length murine survivin gene (P=0.0175). Therefore, xenogeneic differences between human and murine sequences might be exploited to develop more immunogenic tumor vaccines.
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Affiliation(s)
- Michael J Ciesielski
- Departments of Neurosurgery and Immunology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA.
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48
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Abstract
During recent years, cancer vaccines have made encouraging progress toward becoming a clinically relevant form of biologic therapy. However, current vaccine approaches have shown only limited success in patients with cancer because of inadequate immune activation. Recent insights into the elements that regulate immune responsiveness have provided new opportunities to enhance the efficacy of cancer vaccines through multiple pathways that involve afferent and efferent arms of the immune system. This article presents a set of emerging strategies that have resulted from our recent efforts to boost tumor-associated antigen-specific immunity and improve patient outcome. These new insights represent important consideration for the design and development of more effective immunotherapies during the next decade.
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Affiliation(s)
- Johannes Vieweg
- Genitourinary Cancer Immunotherapy Program, Division of Urology, Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA.
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49
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Siegel S, Wagner A, Friedrichs B, Wendeler A, Wendel L, Kabelitz D, Steinmann J, Barsoum A, Coggin J, Rohrer J, Dreger P, Schmitz N, Zeis M. Identification of HLA-A*0201-presented T cell epitopes derived from the oncofetal antigen-immature laminin receptor protein in patients with hematological malignancies. THE JOURNAL OF IMMUNOLOGY 2006; 176:6935-44. [PMID: 16709854 DOI: 10.4049/jimmunol.176.11.6935] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The oncofetal Ag immature laminin receptor (OFA-iLR) is a potential target molecule for immunotherapeutic studies in several tumor entities, including hematological malignancies. In the present study, we characterize two HLA-A*0201-presented epitopes eliciting strong OFA-iLR peptide-specific human cytotoxic T cell (CTLs) responses in vitro. Both allogeneic HLA-A*0201-matched and autologous CTLs recognized and killed endogenously OFA-iLR-expressing tumor cell lines and primary malignant cells from patients with hemopoietic malignancies in an MHC-restricted fashion but spared nonmalignant hemopoietic cells. Spontaneous OFA-iLR peptide-specific T cell reactivity was detectable in a significant proportion of leukemia patients. Interestingly, in patients with chronic lymphocytic leukemia and multiple myeloma but not in those with acute myeloid leukemia, significant frequencies of OFA peptide-specific CTLs could be detected in an early stage of disease but disappeared in patients with progressive disease. The identification of OFA-iLR-derived peptide epitopes provides a basis for tumor immunological studies and therapeutic vaccination strategies in patients with OFA-iLR-expressing malignancies.
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MESH Headings
- Adult
- Aged
- Antigen Presentation
- Antigens, Neoplasm/biosynthesis
- Antigens, Neoplasm/genetics
- Antigens, Neoplasm/immunology
- Antigens, Neoplasm/metabolism
- Cytotoxicity Tests, Immunologic
- Cytotoxicity, Immunologic
- Dendritic Cells/immunology
- Dendritic Cells/metabolism
- Dendritic Cells/pathology
- Epitopes, T-Lymphocyte/immunology
- Epitopes, T-Lymphocyte/metabolism
- Female
- HLA-A Antigens/immunology
- HLA-A Antigens/metabolism
- HLA-A2 Antigen
- Humans
- K562 Cells
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/metabolism
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Leukemia, Myeloid, Acute/immunology
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/pathology
- Male
- Middle Aged
- Multiple Myeloma/immunology
- Multiple Myeloma/metabolism
- Multiple Myeloma/pathology
- Peptide Fragments/immunology
- Peptide Fragments/metabolism
- Protein Binding/immunology
- Receptors, Laminin/biosynthesis
- Receptors, Laminin/genetics
- Receptors, Laminin/immunology
- Receptors, Laminin/metabolism
- Ribosomal Proteins
- T-Lymphocytes, Cytotoxic/immunology
- T-Lymphocytes, Cytotoxic/metabolism
- T-Lymphocytes, Cytotoxic/pathology
- Transfection
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Affiliation(s)
- Sandra Siegel
- General Hospital St. Georg, Department of Hematology, Hamburg, Germany
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50
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Hofmeister V, Vetter C, Schrama D, Bröcker EB, Becker JC. Tumor stroma-associated antigens for anti-cancer immunotherapy. Cancer Immunol Immunother 2006; 55:481-94. [PMID: 16220326 PMCID: PMC11030168 DOI: 10.1007/s00262-005-0070-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2005] [Accepted: 07/27/2005] [Indexed: 02/06/2023]
Abstract
Immunotherapy has been widely investigated for its potential use in cancer therapy and it becomes more and more apparent that the selection of target antigens is essential for its efficacy. Indeed, limited clinical efficacy is partly due to immune evasion mechanisms of neoplastic cells, e.g. downregulation of expression or presentation of the respective antigens. Consequently, antigens contributing to tumor cell survival seem to be more suitable therapeutic targets. However, even such antigens may be subject to immune evasion due to impaired processing and cell surface expression. Since development and progression of tumors is not only dependent on cancer cells themselves but also on the active contribution of the stromal cells, e.g. by secreting growth supporting factors, enzymes degrading the extracellular matrix or angiogenic factors, the tumor stroma may also serve as a target for immune intervention. To this end several antigens have been identified which are induced or upregulated on the tumor stroma. Tumor stroma-associated antigens are characterized by an otherwise restricted expression pattern, particularly with respect to differentiated tissues, and they have been successfully targeted by passive and active immunotherapy in preclinical models. Moreover, some of these strategies have already been translated into clinical trials.
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Affiliation(s)
- Valeska Hofmeister
- Department of Dermatology, Julius-Maximilians-University of Wuerzburg, Josef-Schneider-Str. 2, 97080 Wuerzburg, Germany
| | - Claudia Vetter
- Department of Dermatology, Julius-Maximilians-University of Wuerzburg, Josef-Schneider-Str. 2, 97080 Wuerzburg, Germany
| | - David Schrama
- Department of Dermatology, Julius-Maximilians-University of Wuerzburg, Josef-Schneider-Str. 2, 97080 Wuerzburg, Germany
| | - Eva-B. Bröcker
- Department of Dermatology, Julius-Maximilians-University of Wuerzburg, Josef-Schneider-Str. 2, 97080 Wuerzburg, Germany
| | - Jürgen C. Becker
- Department of Dermatology, Julius-Maximilians-University of Wuerzburg, Josef-Schneider-Str. 2, 97080 Wuerzburg, Germany
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