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Hao Z, Xin Z, Chen Y, Shao Z, Lin W, Wu W, Lin M, Liu Q, Chen D, Wu D, Wu P. JAML promotes the antitumor role of tumor-resident CD8 + T cells by facilitating their innate-like function in human lung cancer. Cancer Lett 2024; 590:216839. [PMID: 38570084 DOI: 10.1016/j.canlet.2024.216839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 04/05/2024]
Abstract
Tissue-resident memory CD8+T cells (CD8+TRMs) are thought to play a crucial role in cancer immunosurveillance. However, the characteristics of CD8+TRMs in the tumor microenvironment (TME) of human non-small cell lung cancer (NSCLC) remain unclear. Here, we report that CD8+TRMs accumulate explicitly and exhibit a unique gene expression profile in the TME of NSCLC. Interestingly, these tumor-associated CD8+TRMs uniquely exhibit an innate-like phenotype. Importantly, we found that junction adhesion molecule-like (JAML) provides an alternative costimulatory signal to activate tumor-associated CD8+TRMs via combination with cancer cell-derived CXADR (CXADR Ig-like cell adhesion molecule). Furthermore, we demonstrated that activating JAML could promote the expression of TLR1/2 on CD8+TRMs, inhibit tumor progression and prolong the survival of tumor-bearing mice. Finally, we found that higher CD8+TRMs and JAML expression in the TME could predict favorable clinical outcomes in NSCLC patients. Our study reveals an intrinsic bias of CD8+TRMs for receiving the tumor-derived costimulatory signal in the TME, which sustains their innate-like function and antitumor role. These findings will shed more light on the biology of CD8+TRMs and aid in the development of potential targeted treatment strategies for NSCLC.
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Affiliation(s)
- Zhixing Hao
- Department of Thoracic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China; Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Zhongwei Xin
- Department of Thoracic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China; Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Yongyuan Chen
- Department of Thoracic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China; Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Zheyu Shao
- Department of Thoracic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China; Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Wei Lin
- Department of Thoracic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Wenxuan Wu
- Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China; Department of Gastrointestinal Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Mingjie Lin
- Department of Thoracic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China; Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Qinyuan Liu
- Department of Thoracic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China; Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Di Chen
- Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China; Department of Radiation Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Dang Wu
- Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China; Department of Radiation Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China.
| | - Pin Wu
- Department of Thoracic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China; Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China.
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2
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STxB as an Antigen Delivery Tool for Mucosal Vaccination. Toxins (Basel) 2022; 14:toxins14030202. [PMID: 35324699 PMCID: PMC8948715 DOI: 10.3390/toxins14030202] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/03/2022] [Accepted: 03/07/2022] [Indexed: 12/31/2022] Open
Abstract
Immunotherapy against cancer and infectious disease holds the promise of high efficacy with minor side effects. Mucosal vaccines to protect against tumors or infections disease agents that affect the upper airways or the lung are still lacking, however. One mucosal vaccine candidate is the B-subunit of Shiga toxin, STxB. In this review, we compare STxB to other immunotherapy vectors. STxB is a non-toxic protein that binds to a glycosylated lipid, termed globotriaosylceramide (Gb3), which is preferentially expressed by dendritic cells. We review the use of STxB for the cross-presentation of tumor or viral antigens in a MHC class I-restricted manner to induce humoral immunity against these antigens in addition to polyfunctional and persistent CD4+ and CD8+ T lymphocytes capable of protecting against viral infection or tumor growth. Other literature will be summarized that documents a powerful induction of mucosal IgA and resident memory CD8+ T cells against mucosal tumors specifically when STxB-antigen conjugates are administered via the nasal route. It will also be pointed out how STxB-based vaccines have been shown in preclinical cancer models to synergize with other therapeutic modalities (immune checkpoint inhibitors, anti-angiogenic therapy, radiotherapy). Finally, we will discuss how molecular aspects such as low immunogenicity, cross-species conservation of Gb3 expression, and lack of toxicity contribute to the competitive positioning of STxB among the different DC targeting approaches. STxB thereby appears as an original and innovative tool for the development of mucosal vaccines in infectious diseases and cancer.
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3
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Mei X, Li H, Zhou X, Cheng M, Cui K. The Emerging Role of Tissue-Resident Memory CD8 + T Lymphocytes in Human Digestive Tract Cancers. Front Oncol 2022; 11:819505. [PMID: 35096624 PMCID: PMC8795735 DOI: 10.3389/fonc.2021.819505] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 12/23/2021] [Indexed: 12/15/2022] Open
Abstract
Malignant digestive tract tumors are a great threat to human public health. In addition to surgery, immunotherapy brings hope for the treatment of these tumors. Tissue-resident memory CD8+ T (Trm) cells are a focus of tumor immunology research and treatment due to their powerful cytotoxic effects, ability to directly kill epithelial-derived tumor cells, and overall impact on maintaining mucosal homeostasis and antitumor function in the digestive tract. They are a group of noncirculating immune cells expressing adhesion and migration molecules such as CD69, CD103, and CD49a that primarily reside on the barrier epithelium of nonlymphoid organs and respond rapidly to both viral and bacterial infection and tumorigenesis. This review highlights new research exploring the role of CD8+ Trm cells in a variety of digestive tract malignant tumors, including esophageal cancer, gastric cancer, colorectal cancer, and hepatocellular carcinoma. A summary of CD8+ Trm cell phenotypes and characteristics, tissue distribution, and antitumor functions in different tumor environments is provided, illustrating how these cells may be used in immunotherapies against digestive tract tumors.
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Affiliation(s)
- Xinyu Mei
- Department of Thoracic Surgery, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Huan Li
- Department of Thoracic Surgery, Anhui Provincial Hospital Affiliated With Anhui Medical University, Hefei, China
| | - Xinpeng Zhou
- Department of Thoracic Surgery, Anhui Provincial Hospital, Wannan Medical College, Hefei, China
| | - Min Cheng
- Department of Geriatrics, Gerontology Institute of Anhui Province, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy, Hefei, China.,Cancer Immunotherapy Center, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Kele Cui
- Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy, Hefei, China.,Cancer Immunotherapy Center, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Department of Clinical Laboratory, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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4
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Resident Memory T Cells in the Tumor Microenvironment. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1273:39-68. [PMID: 33119875 DOI: 10.1007/978-3-030-49270-0_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Tissue-resident memory T (TRM) cells are strategically positioned within the epithelial layers of many tissues to provide enduring site-specific immunological memory. This unique T-cell lineage is endowed with the capacity to rapidly respond to tissue perturbations and has a well-documented role in eradicating pathogens upon reexposure. Emerging evidence has highlighted a key role for TRM cells in cancer immunity. Single-cell approaches have identified TRM cells among other CD8+ tumor-infiltrating lymphocyte (TIL) subsets, and their presence is a positive indicator of clinical outcome in cancer patients. Furthermore, recent preclinical studies have elegantly demonstrated that TRM cells are a critical component of the antitumor immune response. Given their unique functional abilities, TRM cells have emerged as a potential immunotherapeutic target. Here, we discuss TRM cells in the framework of the cancer-immunity cycle and in the context of the T cell- and non-T cell-inflamed tumor microenvironments (TME). We highlight how their core features make TRM cells uniquely suited to function within the metabolically demanding TME. Finally, we consider potential therapeutic avenues that target TRM cells to augment the antitumor immune response.
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5
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Belz GT, Denman R, Seillet C, Jacquelot N. Tissue-resident lymphocytes: weaponized sentinels at barrier surfaces. F1000Res 2020; 9. [PMID: 32695313 PMCID: PMC7348522 DOI: 10.12688/f1000research.25234.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/03/2020] [Indexed: 12/14/2022] Open
Abstract
Tissue-resident immune cells stably localize in tissues largely independent of the circulatory system. While initial studies have focused on the recognition of CD8
+ tissue-resident memory T (CD8 T
RM) cells, it is now clear that numerous cell types such as CD4
+ T cells, gd T cells, innate lymphoid cells and mucosal-associated invariant T (MAIT) cells form stable populations in tissues. They are enriched at the barrier surfaces and within non-lymphoid compartments. They provide an extensive immune network capable of sensing local perturbations of the body’s homeostasis. This positioning enables immune cells to positively influence immune protection against infection and cancer but paradoxically also augment autoimmunity, allergy and chronic inflammatory diseases. Here, we highlight the recent studies across multiple lymphoid immune cell types that have emerged on this research topic and extend our understanding of this important cellular network. In addition, we highlight the areas that remain gaps in our knowledge of the regulation of these cells and how a deeper understanding may result in new ways to ‘target’ these cells to influence disease outcome and treatments.
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Affiliation(s)
- Gabrielle T Belz
- The University of Queensland, Diamantina Institute, Brisbane, Queensland, 4102, Australia.,Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Victoria, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Renae Denman
- The University of Queensland, Diamantina Institute, Brisbane, Queensland, 4102, Australia
| | - Cyril Seillet
- Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Victoria, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Nicolas Jacquelot
- Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Victoria, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, 3010, Australia
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6
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Sarkar I, Pati S, Dutta A, Basak U, Sa G. T-memory cells against cancer: Remembering the enemy. Cell Immunol 2019; 338:27-31. [PMID: 30928016 DOI: 10.1016/j.cellimm.2019.03.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 03/14/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND Recently various types of immunotherapies have made immense progress in combating cancer. Adoptive cell therapy, being one of the most favorable forms of immunotherapy, is rapidly moving from bench to bed. MAIN BODY Different types of T-memory cells are being used as promising candidates for adoptive cell therapy: T effector memory (TEM) cells which are terminally differentiated memory cells and attain effector function soon after re-stimulation; T central memory (TCM) cells which differentiate into effector T-memory subsets and T-effector cells after antigenic stimulation; and tissue T resident memory (TRM) cells which fight the tumor insult at the peripheral tissues. Recently, a new subtype of T-memory cells, T stem cell memory (TSCM) have been identified as the most favorable candidate for adoptive cell therapy as they exhibit higher persistence, anti-tumor immunity and self-renewal capacity in the tumor-bearing host. CONCLUSION In this review, we briefly describe the concept and types of T-memory cells as well as their role as potential candidates for anti-cancer immunotherapy.
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Affiliation(s)
- Irene Sarkar
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Subhadip Pati
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Abhishek Dutta
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Udit Basak
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Gaurisankar Sa
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India.
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7
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Abstract
Resident memory T (Trm) cells stably occupy tissues and cannot be sampled in superficial venous blood. Trm cells are heterogeneous but collectively constitute the most abundant memory T cell subset. Trm cells form an integral part of the immune sensing network, monitor for local perturbations in homeostasis throughout the body, participate in protection from infection and cancer, and likely promote autoimmunity, allergy, and inflammatory diseases and impede successful transplantation. Thus Trm cells are major candidates for therapeutic manipulation. Here we review CD8+ and CD4+ Trm ontogeny, maintenance, function, and distribution within lymphoid and nonlymphoid tissues and strategies for their study. We briefly discuss other resident leukocyte populations, including innate lymphoid cells, macrophages, natural killer and natural killer T cells, nonclassical T cells, and memory B cells. Lastly, we highlight major gaps in knowledge and propose ways in which a deeper understanding could result in new methods to prevent or treat diverse human diseases.
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Affiliation(s)
- David Masopust
- Department of Microbiology and Immunology, Center for Immunology, University of Minnesota, Minneapolis, Minnesota 55455, USA; ,
| | - Andrew G Soerens
- Department of Microbiology and Immunology, Center for Immunology, University of Minnesota, Minneapolis, Minnesota 55455, USA; ,
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8
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Mami-Chouaib F, Blanc C, Corgnac S, Hans S, Malenica I, Granier C, Tihy I, Tartour E. Resident memory T cells, critical components in tumor immunology. J Immunother Cancer 2018; 6:87. [PMID: 30180905 PMCID: PMC6122734 DOI: 10.1186/s40425-018-0399-6] [Citation(s) in RCA: 179] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 08/16/2018] [Indexed: 12/26/2022] Open
Abstract
CD8+ T lymphocytes are the major anti-tumor effector cells. Most cancer immunotherapeutic approaches seek to amplify cytotoxic T lymphocytes (CTL) specific to malignant cells. A recently identified subpopulation of memory CD8+ T cells, named tissue-resident memory T (TRM) cells, persists in peripheral tissues and does not recirculate. This T-cell subset is considered an independent memory T-cell lineage with a specific profile of transcription factors, including Runx3+, Notch+, Hobit+, Blimp1+, BATF+, AHR+, EOMESneg and Tbetlow. It is defined by expression of CD103 (αE(CD103)β7) and CD49a (VLA-1 or α1β1) integrins and C-type lectin CD69, which are most likely involved in retention of TRM cells in non-lymphoid tissues, including solid tumors. CD103 binds to the epithelial cell marker E-cadherin, thereby favoring the location and retention of TRM in epithelial tumor regions in close contact with malignant cells. The CD103-E-cadherin interaction is required for polarized exocytosis of lytic granules, in particular, when ICAM-1 expression on cancer cells is missing, leading to target cell death. TRM cells also express high levels of granzyme B, IFNγ and TNFα, supporting their cytotoxic features. Moreover, the local route of immunization targeting tissue dendritic cells (DC), and the presence of environmental factors (i.e. TGF-β, IL-33 and IL-15), promote differentiation of this T-cell subtype. In both spontaneous tumor models and engrafted tumors, natural TRM cells or cancer-vaccine-induced TRM directly control tumor growth. In line with these results, TRM infiltration into various human cancers, including lung cancer, are correlated with better clinical outcome in both univariate and multivariate analyses independently of CD8+ T cells. TRM cells also predominantly express checkpoint receptors such as PD-1, CTLA-4 and Tim-3. Blockade of PD-1 with neutralizing antibodies on TRM cells isolated from human lung cancer promotes cytolytic activity toward autologous tumor cells. Thus, TRM cells appear to represent important components in tumor immune surveillance. Their induction by cancer vaccines or other immunotherapeutic approaches may be critical for the success of these treatments. Several arguments, such as their close contact with tumor cells, dominant expression of checkpoint receptors and their recognition of cancer cells, strongly suggest that they may be involved in the success of immune checkpoint inhibitors in various cancers.
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Affiliation(s)
- Fathia Mami-Chouaib
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, PSL, Faculté de Médecine, University Paris-Sud, Université Paris-Saclay, 39, rue Camille Desmoulins, F-94805, Villejuif, France.
| | - Charlotte Blanc
- INSERM U970, Universite Paris Descartes, Paris, France.,Hôpital européen Georges Pompidou. Service d'Immunologie biologique, 20, Rue Leblanc, 75015, Paris, France.,Equipe labellisée Ligue contre le Cancer, Paris, France
| | - Stéphanie Corgnac
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, PSL, Faculté de Médecine, University Paris-Sud, Université Paris-Saclay, 39, rue Camille Desmoulins, F-94805, Villejuif, France
| | - Sophie Hans
- INSERM U970, Universite Paris Descartes, Paris, France.,Hôpital européen Georges Pompidou. Service d'Immunologie biologique, 20, Rue Leblanc, 75015, Paris, France.,Equipe labellisée Ligue contre le Cancer, Paris, France
| | - Ines Malenica
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, PSL, Faculté de Médecine, University Paris-Sud, Université Paris-Saclay, 39, rue Camille Desmoulins, F-94805, Villejuif, France
| | - Clémence Granier
- INSERM U970, Universite Paris Descartes, Paris, France.,Hôpital européen Georges Pompidou. Service d'Immunologie biologique, 20, Rue Leblanc, 75015, Paris, France.,Equipe labellisée Ligue contre le Cancer, Paris, France
| | - Isabelle Tihy
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, PSL, Faculté de Médecine, University Paris-Sud, Université Paris-Saclay, 39, rue Camille Desmoulins, F-94805, Villejuif, France
| | - Eric Tartour
- INSERM U970, Universite Paris Descartes, Paris, France. .,Hôpital européen Georges Pompidou. Service d'Immunologie biologique, 20, Rue Leblanc, 75015, Paris, France. .,Equipe labellisée Ligue contre le Cancer, Paris, France.
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9
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Corgnac S, Boutet M, Kfoury M, Naltet C, Mami-Chouaib F. The Emerging Role of CD8 + Tissue Resident Memory T (T RM) Cells in Antitumor Immunity: A Unique Functional Contribution of the CD103 Integrin. Front Immunol 2018; 9:1904. [PMID: 30158938 PMCID: PMC6104123 DOI: 10.3389/fimmu.2018.01904] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 08/01/2018] [Indexed: 12/15/2022] Open
Abstract
Cancer immunotherapy is aimed at stimulating tumor-specific cytotoxic T lymphocytes and their subsequent trafficking so that they may reach, and persist in, the tumor microenvironment, recognizing and eliminating malignant target cells. Thus, characterization of the phenotype and effector functions of CD8+ T lymphocytes infiltrating human solid tumors is essential for better understanding and manipulating the local antitumor immune response, and for defining their contribution to the success of current cancer immunotherapy approaches. Accumulating evidence indicates that a substantial subpopulation of CD3+CD8+ tumor-infiltrating lymphocytes are tissue resident memory T (TRM) cells, and is emerging as an activated tumor-specific T-cell subset. These TRM cells accumulate in various human cancer tissues, including non-small-cell lung carcinoma (NSCLC), ovarian and breast cancers, and are defined by expression of CD103 [αE(CD103)β7] and/or CD49a [α1(CD49a)β1] integrins, along with C-type lectin CD69, which most likely contribute to their residency characteristic. CD103 binds to the epithelial cell marker E-cadherin, thereby promoting retention of TRM cells in epithelial tumor islets and maturation of cytotoxic immune synapse with specific cancer cells, resulting in T-cell receptor (TCR)-dependent target cell killing. Moreover, CD103 integrin triggers bidirectional signaling events that cooperate with TCR signals to enable T-cell migration and optimal cytokine production. Remarkably, TRM cells infiltrating human NSCLC tumors also express inhibitory receptors such as programmed cell death-1, the neutralization of which, with blocking antibodies, enhances CD103-dependent TCR-mediated cytotoxicity toward autologous cancer cells. Thus, accumulation of TRM cells at the tumor site explains the more favorable clinical outcome, and might be associated with the success of immune checkpoint blockade in a fraction of cancer patients.
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Affiliation(s)
- Stéphanie Corgnac
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, PSL, Fac. de Médecine - Univ. Paris-Sud, Université Paris-Saclay, Villejuif, France
| | - Marie Boutet
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, PSL, Fac. de Médecine - Univ. Paris-Sud, Université Paris-Saclay, Villejuif, France
| | - Maria Kfoury
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, PSL, Fac. de Médecine - Univ. Paris-Sud, Université Paris-Saclay, Villejuif, France
| | - Charles Naltet
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, PSL, Fac. de Médecine - Univ. Paris-Sud, Université Paris-Saclay, Villejuif, France
| | - Fathia Mami-Chouaib
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, PSL, Fac. de Médecine - Univ. Paris-Sud, Université Paris-Saclay, Villejuif, France
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10
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Morabito KM, Ruckwardt TJ, Bar-Haim E, Nair D, Moin SM, Redwood AJ, Price DA, Graham BS. Memory Inflation Drives Tissue-Resident Memory CD8 + T Cell Maintenance in the Lung After Intranasal Vaccination With Murine Cytomegalovirus. Front Immunol 2018; 9:1861. [PMID: 30154789 PMCID: PMC6102355 DOI: 10.3389/fimmu.2018.01861] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 07/27/2018] [Indexed: 12/30/2022] Open
Abstract
Tissue-resident memory T (TRM) cells provide first-line defense against invading pathogens encountered at barrier sites. In the lungs, TRM cells protect against respiratory infections, but wane more quickly than TRM cells in other tissues. This lack of a sustained TRM population in the lung parenchyma explains, at least in part, why infections with some pathogens, such as influenza virus and respiratory syncytial virus (RSV), recur throughout life. Intranasal (IN) vaccination with a murine cytomegalovirus (MCMV) vector expressing the M protein of RSV (MCMV-M) has been shown to elicit robust populations of CD8+ TRM cells that accumulate over time and mediate early viral clearance. To extend this finding, we compared the inflationary CD8+ T cell population elicited by MCMV-M vaccination with a conventional CD8+ T cell population elicited by an MCMV vector expressing the M2 protein of RSV (MCMV-M2). Vaccination with MCMV-M2 induced a population of M2-specific CD8+ TRM cells that waned rapidly, akin to the M2-specific CD8+ TRM cell population elicited by infection with RSV. In contrast to the natural immunodominance profile, however, coadministration of MCMV-M and MCMV-M2 did not suppress the M-specific CD8+ T cell response, suggesting that progressive expansion was driven by continuous antigen presentation, irrespective of the competitive or regulatory effects of M2-specific CD8+ T cells. Moreover, effective viral clearance mediated by M-specific CD8+ TRM cells was not affected by the coinduction of M2-specific CD8+ T cells. These data show that memory inflation is required for the maintenance of CD8+ TRM cells in the lungs after IN vaccination with MCMV.
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Affiliation(s)
- Kaitlyn M Morabito
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States.,Department of Microbiology and Immunology, Georgetown University Medical Center, Washington, DC, United States
| | - Tracy J Ruckwardt
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Erez Bar-Haim
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States.,Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Deepika Nair
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Syed M Moin
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Alec J Redwood
- Institute for Immunology and Infectious Diseases, Murdoch University, Perth, WA, Australia
| | - David A Price
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom.,Human Immunology Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Barney S Graham
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
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11
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Enamorado M, Khouili SC, Iborra S, Sancho D. Genealogy, Dendritic Cell Priming, and Differentiation of Tissue-Resident Memory CD8 + T Cells. Front Immunol 2018; 9:1751. [PMID: 30108585 PMCID: PMC6079237 DOI: 10.3389/fimmu.2018.01751] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 07/16/2018] [Indexed: 11/13/2022] Open
Abstract
Tissue-resident memory CD8+ T (Trm) cells define a distinct non-recirculating subset. Trm cells constitute a first line of defense against local infections in barrier tissues, but they are also found in non-barrier tissues and play a role in antitumor immunity. Their differentiation in tissues and their phenotypical, transcriptional, and functional characteristics are the object of active research. Herein, we will discuss the potential existence of committed CD8+ Trm precursors and the genealogy of memory CD8+ T cell subsets. In addition to the priming of naive T cells, there is some plasticity of antigen-experienced effector and memory T cell subsets to generate Trm precursors. Local inflammation, antigen presentation, and cytokines drive Trm differentiation. It is of prime interest how specific dendritic cell subsets modulate priming and differentiation of Trm cells, as well as their reactivation within tissues. Research on how we can manipulate generation of memory T cells subsets is key for improved vaccination strategies.
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Affiliation(s)
- Michel Enamorado
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Sofía C Khouili
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Salvador Iborra
- Department of Immunology, School of Medicine, Universidad Complutense de Madrid, 12 de Octubre Health Research Institute (imas12), Madrid, Spain
| | - David Sancho
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
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12
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Blanc C, Hans S, Tran T, Granier C, Saldman A, Anson M, Oudard S, Tartour E. Targeting Resident Memory T Cells for Cancer Immunotherapy. Front Immunol 2018; 9:1722. [PMID: 30100906 PMCID: PMC6072845 DOI: 10.3389/fimmu.2018.01722] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 07/12/2018] [Indexed: 12/17/2022] Open
Abstract
A novel population of memory CD8+ T cells called resident memory T cells (TRM) has been identified based on their phenotype (CD103, CD69) and on their local tissue residency without recirculating in the blood. These cells have been implicated in protective immune response against pathogens in both animal models and humans. Their role in cancer is just emerging as a key player in tumor immunosurveillance. Many properties of these cells suggest that they could control tumor growth: (i) they respond much faster to reexposure to cognate antigen than circulating memory cells, (ii) they express high levels of cytotoxic molecules, and (iii) they are enriched in tumor-specific T cells in close contact with tumor cells. TRM are present in many human cancers and are associated with a good clinical outcome independently of the infiltration of CD8+ T cells. It has been recently shown that the efficacy of cancer vaccines depends on their ability to elicit TRM. In adoptive cell therapy, the transfer of cells with the ability to establish TRM at the tumor site correlates with the potency of this approach. Interestingly, TRM express immune checkpoint molecules and preliminary data showed that they could expand early during anti-PD-1 treatment, and thus be considered as a surrogate marker of response to immunotherapy. Some cues to better expand these cells in vivo and improve the success of cancer immunotherapy include using mucosal routes of immunization, targeting subpopulations of dendritic cells as well as local signal at the mucosal site to recruit them in mucosal tissue.
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Affiliation(s)
- Charlotte Blanc
- INSERM U970, Paris Cardiovascular Research Center (PARCC), Université Paris Descartes, Paris, France
| | - Sophie Hans
- INSERM U970, Paris Cardiovascular Research Center (PARCC), Université Paris Descartes, Paris, France
| | - Thi Tran
- INSERM U970, Paris Cardiovascular Research Center (PARCC), Université Paris Descartes, Paris, France
| | - Clemence Granier
- INSERM U970, Paris Cardiovascular Research Center (PARCC), Université Paris Descartes, Paris, France
| | - Antonin Saldman
- INSERM U970, Paris Cardiovascular Research Center (PARCC), Université Paris Descartes, Paris, France
| | - Marie Anson
- INSERM U970, Paris Cardiovascular Research Center (PARCC), Université Paris Descartes, Paris, France
| | - Stephane Oudard
- INSERM U970, Paris Cardiovascular Research Center (PARCC), Université Paris Descartes, Paris, France.,Hôpital Européen Georges Pompidou, Department of Medical Oncology, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Eric Tartour
- INSERM U970, Paris Cardiovascular Research Center (PARCC), Université Paris Descartes, Paris, France.,Hôpital Européen Georges Pompidou, Laboratory of Immunology, Assistance Publique des Hôpitaux de Paris, Paris, France
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13
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Tran T, Blanc C, Granier C, Saldmann A, Tanchot C, Tartour E. Therapeutic cancer vaccine: building the future from lessons of the past. Semin Immunopathol 2018; 41:69-85. [PMID: 29978248 DOI: 10.1007/s00281-018-0691-z] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 06/11/2018] [Indexed: 12/13/2022]
Abstract
Anti-cancer vaccines have raised many hopes from the start of immunotherapy but have not yet been clinically successful. The few positive results of anti-cancer vaccines have been observed in clinical situations of low tumor burden or preneoplastic lesions. Several new concepts and new results reposition this therapeutic approach in the field of immunotherapy. Indeed, cancers that respond to anti-PD-1/PD-L1 (20-30%) are those that are infiltrated by anti-tumor T cells with an inflammatory infiltrate. However, 70% of cancers do not appear to have an anti-tumor immune reaction in the tumor microenvironment. To induce this anti-tumor immunity, therapeutic combinations between vaccines and anti-PD-1/PD-L1 are being evaluated. In addition, the identification of neoepitopes against which the immune system is less tolerated is giving rise to a new enthusiasm by the first clinical results of the vaccine including these neoepitopes in humans. The ability of anti-cancer vaccines to induce a population of anti-tumor T cells called memory resident T cells that play an important role in immunosurveillance is also a new criterion to consider in the design of therapeutic vaccines.
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Affiliation(s)
- T Tran
- INSERM U970, Paris Cardiovascular Research Center (PARCC), Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - C Blanc
- INSERM U970, Paris Cardiovascular Research Center (PARCC), Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - C Granier
- INSERM U970, Paris Cardiovascular Research Center (PARCC), Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - A Saldmann
- INSERM U970, Paris Cardiovascular Research Center (PARCC), Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - C Tanchot
- INSERM U970, Paris Cardiovascular Research Center (PARCC), Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Eric Tartour
- INSERM U970, Paris Cardiovascular Research Center (PARCC), Paris, France.
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France.
- Hôpital Européen Georges Pompidou, Laboratory of Immunology, Assistance Publique des Hôpitaux de Paris, Paris, France.
- Equipe Labellisée Ligue Nationale contre le Cancer, Paris, France.
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14
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Amsen D, van Gisbergen KPJM, Hombrink P, van Lier RAW. Tissue-resident memory T cells at the center of immunity to solid tumors. Nat Immunol 2018; 19:538-546. [PMID: 29777219 DOI: 10.1038/s41590-018-0114-2] [Citation(s) in RCA: 180] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 04/17/2018] [Indexed: 02/07/2023]
Abstract
Immune responses in tissues are constrained by the physiological properties of the tissue involved. Tissue-resident memory T cells (TRM cells) are a recently discovered lineage of T cells specialized for life and function within tissues. Emerging evidence has shown that TRM cells have a special role in the control of solid tumors. A high frequency of TRM cells in tumors correlates with favorable disease progression in patients with cancer, and studies of mice have shown that TRM cells are necessary for optimal immunological control of solid tumors. Here we describe what defines TRM cells as a separate lineage and how these cells are generated. Furthermore, we discuss the properties that allow TRM cells to operate in normal and transformed tissues, as well as implications for the treatment of patients with cancer.
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Affiliation(s)
- Derk Amsen
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
| | - Klaas P J M van Gisbergen
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Pleun Hombrink
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Rene A W van Lier
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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15
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Outh-Gauer S, Alt M, Le Tourneau C, Augustin J, Broudin C, Gasne C, Denize T, Mirghani H, Fabre E, Ménard M, Scotte F, Tartour E, Badoual C. Immunotherapy in head and neck cancers: A new challenge for immunologists, pathologists and clinicians. Cancer Treat Rev 2018; 65:54-64. [PMID: 29547766 DOI: 10.1016/j.ctrv.2018.02.008] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 02/22/2018] [Accepted: 02/27/2018] [Indexed: 12/21/2022]
Abstract
Cancer occurrence can be understood as the result of dysfunctions in immune tumoral microenvironment. Here we review the recent understandings of those microenvironment changes, regarding their causes and prognostic significance in head and neck (HN) carcinoma. We will focus on HN squamous cell cancer (SCC) and nasopharyngeal carcinomas (NPC). Their overall poor prognosis may be improved with immunotherapy in a subset of patients, as supported by current clinical trials. However, finding reliable markers of therapeutic response is crucial for patient selection, due to potential severe adverse reactions and high costs. Half of HNSCC exhibit PD-L1 expression, this expression being higher in HPV-positive tumors. In recent clinical trials, a better therapeutic response to anti-PD-1 was obtained in patients with higher PD-L1 expression. The Food and Drug Administration (FDA) approved the use of these therapeutics without stating a need for patient selection regarding PD-L1 status. Activation status, density and localization of TIL as well as PD-L2, γ-interferon, inflammatory cytokines, epithelial-mesenchymal transition phenotype and mutational burden may all be potential therapeutic response markers. In Epstein-Barr Virus (EBV)-induced nasopharyngeal non-keratinizing cancer, PD-L1 is over-expressed compared to EBV-negative tumors. A 22% response rate has been observed under anti-PD-1 treatment among PD-L1-positive NPC patients. A better understanding of immune checkpoint regulation processes may allow patients to benefit from these promising immunotherapies.
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Affiliation(s)
- Sophie Outh-Gauer
- Hôpital Européen Georges Pompidou, APHP, Department of Pathology, APHP, Paris Descartes Sorbonne Paris-Cité University, Paris, France; INSERM U970, Université Paris Descartes Sorbonne Paris-Cité, Paris, France; Equipe Labellisée Ligue Contre le Cancer, Paris, France
| | - Marie Alt
- Department of Medical Oncology, Institut Curie, Paris & Saint-Cloud, France
| | - Christophe Le Tourneau
- Department of Medical Oncology, Institut Curie, Paris & Saint-Cloud, France; INSERM U900 Research Unit, Saint-Cloud, France
| | - Jérémy Augustin
- Hôpital Européen Georges Pompidou, APHP, Department of Pathology, APHP, Paris Descartes Sorbonne Paris-Cité University, Paris, France
| | - Chloé Broudin
- Hôpital Européen Georges Pompidou, APHP, Department of Pathology, APHP, Paris Descartes Sorbonne Paris-Cité University, Paris, France
| | - Cassandre Gasne
- INSERM U970, Université Paris Descartes Sorbonne Paris-Cité, Paris, France; Equipe Labellisée Ligue Contre le Cancer, Paris, France
| | - Thomas Denize
- Hôpital Européen Georges Pompidou, APHP, Department of Pathology, APHP, Paris Descartes Sorbonne Paris-Cité University, Paris, France
| | - Haitham Mirghani
- Hôpital Européen Georges Pompidou, Department of ENT Surgery, APHP, Paris, France
| | - Elizabeth Fabre
- Hôpital Européen Georges Pompidou, Department of Thoracic Oncology, APHP, Paris, France
| | - Madeleine Ménard
- Hôpital Européen Georges Pompidou, Department of ENT Surgery, APHP, Paris, France
| | - Florian Scotte
- Hôpital Foch, Department of Medical Oncology and Supportive Care, Suresnes, France
| | - Eric Tartour
- INSERM U970, Université Paris Descartes Sorbonne Paris-Cité, Paris, France; Equipe Labellisée Ligue Contre le Cancer, Paris, France; Hôpital Européen Georges Pompidou, Department of Immunology, APHP, Paris Descartes Sorbonne Paris-Cité University, Paris, France
| | - Cécile Badoual
- Hôpital Européen Georges Pompidou, APHP, Department of Pathology, APHP, Paris Descartes Sorbonne Paris-Cité University, Paris, France; INSERM U970, Université Paris Descartes Sorbonne Paris-Cité, Paris, France; Equipe Labellisée Ligue Contre le Cancer, Paris, France.
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16
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Granier C, Vinatier E, Colin E, Mandavit M, Dariane C, Verkarre V, Biard L, El Zein R, Lesaffre C, Galy-Fauroux I, Roussel H, De Guillebon E, Blanc C, Saldmann A, Badoual C, Gey A, Tartour É. Multiplexed Immunofluorescence Analysis and Quantification of Intratumoral PD-1+ Tim-3+ CD8+ T Cells. J Vis Exp 2018. [PMID: 29553498 DOI: 10.3791/56606] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Immune cells are important components of the tumor microenvironment and influence tumor growth and evolution at all stages of carcinogenesis. Notably, it is now well established that the immune infiltrate in human tumors can correlate with prognosis and response to therapy. The analysis of the immune infiltrate in the tumor microenvironment has become a major challenge for the classification of patients and the response to treatment. The co-expression of inhibitory receptors such as Program Cell Death Protein 1 (PD1; also known as CD279), Cytotoxic T Lymphocyte Associated Protein 4 (CTLA-4), T-Cell Immunoglobulin and Mucin Containing Protein-3 (Tim-3; also known as CD366), and Lymphocyte Activation Gene 3 (Lag-3; also known as CD223), is a hallmark of T cell exhaustion. We developed a multiparametric in situ immunofluorescence staining to identify and quantify at the cellular level the co-expression of these inhibitory receptors. On a retrospective series of frozen tissue of renal cell carcinomas (RCC), using a fluorescence multispectral imaging technology coupled with an image analysis software, it was found that co-expression of PD-1 and Tim-3 on tumor infiltrating CD8+ T cells is correlated with a poor prognosis in RCC. To our knowledge, this represents the first study demonstrating that this automated multiplex in situ technology may have some clinical relevance.
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Affiliation(s)
| | - Emeline Vinatier
- INSERM U970, Université Paris Descartes; Equipe Labellisée Ligue Contre le Cancer; Department of Immunology, Hopital Européen Georges Pompidou
| | - Elia Colin
- INSERM U970, Université Paris Descartes; Equipe Labellisée Ligue Contre le Cancer
| | - Marion Mandavit
- INSERM U970, Université Paris Descartes; Equipe Labellisée Ligue Contre le Cancer
| | - Charles Dariane
- INSERM U970, Université Paris Descartes; Equipe Labellisée Ligue Contre le Cancer; Department of Medical Urology, Hopital Européen Georges Pompidou
| | | | | | | | | | | | - Hélène Roussel
- INSERM U970, Université Paris Descartes; Equipe Labellisée Ligue Contre le Cancer; Department of Pathology, Hopital Européen Georges Pompidou
| | | | - Charlotte Blanc
- INSERM U970, Université Paris Descartes; Equipe Labellisée Ligue Contre le Cancer
| | | | - Cécile Badoual
- INSERM U970, Université Paris Descartes; Department of Pathology, Hopital Européen Georges Pompidou
| | - Alain Gey
- Department of Immunology, Hopital Européen Georges Pompidou
| | - Éric Tartour
- INSERM U970, Université Paris Descartes; Department of Immunology, Hopital Européen Georges Pompidou;
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17
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Tartour E. [Anti-cancer vaccines: What future in anti-cancer immunotherapy strategies?]. Biol Aujourdhui 2018; 212:69-76. [PMID: 30973134 DOI: 10.1051/jbio/2019002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Indexed: 11/15/2022]
Abstract
Tumor cells can be recognized by the immune system and in particular by cytotoxic CD8+T cells. From this observation was derived the concept that vaccination targeting these tumor-associated molecules was feasible. Preventive cancer vaccines targeting oncogenic papillomavirus or hepatitis B virus do exist and are efficient. They aim at preventing the introduction into the body of viruses that play a role in oncogenesis. To date, in the case of an already grown cancer, the anti-tumor vaccines have had no impact on the care of patients. These vaccines are gaining renewed interest, as new antigenic targets have emerged and have been incorporated into the design of vaccines, such as mutated antigens which appeared to be more immunogenic. Less editing cells than tumor cells in the tumor microenvironment, such as protumor endothelial cells or fibroblasts, could also be eliminated by cancer vaccines. New vaccine efficacy criteria have been identified, such as the need to induce intratumoral resident T lymphocytes thanks to the development of mucosal vaccination to amplify them. Finally, because of the immunosuppression of the tumor microenvironment and the expression of inhibitory receptors on CD8+T cells in the tumor, various therapeutic association strategies between the anti-cancer vaccines and molecules supporting these inhibitions are currently used in clinical development. Especially, the efficacy of antibodies against costimulatory inhibitory molecules (PD-1, PD-L1…) relies on the presence of pre-existing CD8+T cells occurring in 25-30% of cancer patients. For the 70% resistant patients, cancer vaccine may reprogram this tumor environment via the induction of intratumoral CD8+T cells which will very likely counteract this resistance to anti-PD-1/PD-L1 antibodies.
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Affiliation(s)
- Eric Tartour
- Inserm U970 PARCC, Université Paris Descartes, Hôpital européen Georges-Pompidou, Service d'immunologie biologique, 20, rue Leblanc, 75015 Paris, France
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18
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Granier C, Blanc C, Karaki S, Tran T, Roussel H, Tartour E. Tissue-resident memory T cells play a key role in the efficacy of cancer vaccines. Oncoimmunology 2017; 6:e1358841. [PMID: 29147623 DOI: 10.1080/2162402x.2017.1358841] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 07/19/2017] [Indexed: 10/19/2022] Open
Abstract
Resident memory CD8+T cells (TRM) usually defined by the CD103 marker represent a new subset of long-lived memory T cells that remain in the tissues. We directly demonstrate their specific role in cancer vaccine-induced tumor regression. In human, they also seem to play a major role in tumor immunosurveillance.
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Affiliation(s)
- C Granier
- INSERMU970, Université Paris Descartes Sorbonne Paris-Cité, 56 Rue Leblanc Paris, France
| | - C Blanc
- INSERMU970, Université Paris Descartes Sorbonne Paris-Cité, 56 Rue Leblanc Paris, France
| | - S Karaki
- INSERMU970, Université Paris Descartes Sorbonne Paris-Cité, 56 Rue Leblanc Paris, France
| | - T Tran
- INSERMU970, Université Paris Descartes Sorbonne Paris-Cité, 56 Rue Leblanc Paris, France
| | - H Roussel
- INSERMU970, Université Paris Descartes Sorbonne Paris-Cité, 56 Rue Leblanc Paris, France
| | - E Tartour
- INSERMU970, Université Paris Descartes Sorbonne Paris-Cité, 56 Rue Leblanc Paris, France.,Hopital Européen Georges Pompidou, Department of Immunology, 20 Rue Leblanc Paris, France.,Equipe Labellisée Ligue Contre le Cancer, Paris, France
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19
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Enamorado M, Iborra S, Priego E, Cueto FJ, Quintana JA, Martínez-Cano S, Mejías-Pérez E, Esteban M, Melero I, Hidalgo A, Sancho D. Enhanced anti-tumour immunity requires the interplay between resident and circulating memory CD8 + T cells. Nat Commun 2017; 8:16073. [PMID: 28714465 PMCID: PMC5520051 DOI: 10.1038/ncomms16073] [Citation(s) in RCA: 190] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 05/25/2017] [Indexed: 12/18/2022] Open
Abstract
The goal of successful anti-tumoural immunity is the development of long-term protective immunity to prevent relapse. Infiltration of tumours with CD8+ T cells with a resident memory (Trm) phenotype correlates with improved survival. However, the interplay of circulating CD8+ T cells and Trm cells remains poorly explored in tumour immunity. Using different vaccination strategies that fine-tune the generation of Trm cells or circulating memory T cells, here we show that, while both subsets are sufficient for anti-tumour immunity, the presence of Trm cells improves anti-tumour efficacy. Transferred central memory T cells (Tcm) generate Trm cells following viral infection or tumour challenge. Anti-PD-1 treatment promotes infiltration of transferred Tcm cells within tumours, improving anti-tumour immunity. Moreover, Batf3-dependent dendritic cells are essential for reactivation of circulating memory anti-tumour response. Our findings show the plasticity, collaboration and requirements for reactivation of memory CD8+ T cells subsets needed for optimal tumour vaccination and immunotherapy.
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Affiliation(s)
- Michel Enamorado
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro, 3, Madrid 28029, Spain
| | - Salvador Iborra
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro, 3, Madrid 28029, Spain
| | - Elena Priego
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro, 3, Madrid 28029, Spain.,Universidad Autónoma de Madrid, Arzobispo Morcillo 4, Madrid 28029, Spain
| | - Francisco J Cueto
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro, 3, Madrid 28029, Spain.,Universidad Autónoma de Madrid, Arzobispo Morcillo 4, Madrid 28029, Spain
| | - Juan A Quintana
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro, 3, Madrid 28029, Spain
| | - Sarai Martínez-Cano
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro, 3, Madrid 28029, Spain
| | - Ernesto Mejías-Pérez
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), Darwin 3, Madrid 28049, Spain
| | - Mariano Esteban
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), Darwin 3, Madrid 28049, Spain
| | - Ignacio Melero
- Division of Immunology and Immunotherapy, Center for Applied Medical Research (CIMA), Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 31008 Pamplona, Spain.,University Clinic, University of Navarra and Instituto de Investigación Sanitaria de Navarra (IdISNA), Pío XII, 55, 31008 Pamplona, Spain
| | - Andrés Hidalgo
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro, 3, Madrid 28029, Spain.,Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-Universität, Pettenkoferstrasse 9, 80336 Munich, Germany
| | - David Sancho
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro, 3, Madrid 28029, Spain
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20
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Nizard M, Roussel H, Diniz MO, Karaki S, Tran T, Voron T, Dransart E, Sandoval F, Riquet M, Rance B, Marcheteau E, Fabre E, Mandavit M, Terme M, Blanc C, Escudie JB, Gibault L, Barthes FLP, Granier C, Ferreira LCS, Badoual C, Johannes L, Tartour E. Induction of resident memory T cells enhances the efficacy of cancer vaccine. Nat Commun 2017; 8:15221. [PMID: 28537262 PMCID: PMC5458068 DOI: 10.1038/ncomms15221] [Citation(s) in RCA: 203] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Accepted: 03/10/2017] [Indexed: 12/20/2022] Open
Abstract
Tissue-resident memory T cells (Trm) represent a new subset of long-lived memory T cells that remain in tissue and do not recirculate. Although they are considered as early immune effectors in infectious diseases, their role in cancer immunosurveillance remains unknown. In a preclinical model of head and neck cancer, we show that intranasal vaccination with a mucosal vector, the B subunit of Shiga toxin, induces local Trm and inhibits tumour growth. As Trm do not recirculate, we demonstrate their crucial role in the efficacy of cancer vaccine with parabiosis experiments. Blockade of TFGβ decreases the induction of Trm after mucosal vaccine immunization, resulting in the lower efficacy of cancer vaccine. In order to extrapolate this role of Trm in humans, we show that the number of Trm correlates with a better overall survival in lung cancer in multivariate analysis. The induction of Trm may represent a new surrogate biomarker for the efficacy of cancer vaccine. This study also argues for the development of vaccine strategies designed to elicit them.
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Affiliation(s)
- Mevyn Nizard
- INSERM U970, Université Paris Descartes, Sorbonne Paris-Cité, 56 Rue Leblanc, Paris 75015, France.,Equipe Labellisée Ligue Contre le Cancer, Paris 75015, France
| | - Hélène Roussel
- INSERM U970, Université Paris Descartes, Sorbonne Paris-Cité, 56 Rue Leblanc, Paris 75015, France.,Equipe Labellisée Ligue Contre le Cancer, Paris 75015, France.,Department of Pathology, Hopital Européen Georges Pompidou, 20 Rue Leblanc, Paris 75015, France
| | - Mariana O Diniz
- INSERM U970, Université Paris Descartes, Sorbonne Paris-Cité, 56 Rue Leblanc, Paris 75015, France.,Institute of Biomedical Sciences, University of Sao Paulo, Av Prof Lineu Prestes, Sao Paulo SP-CEP 05508-900, Brazil
| | - Soumaya Karaki
- INSERM U970, Université Paris Descartes, Sorbonne Paris-Cité, 56 Rue Leblanc, Paris 75015, France.,Equipe Labellisée Ligue Contre le Cancer, Paris 75015, France
| | - Thi Tran
- INSERM U970, Université Paris Descartes, Sorbonne Paris-Cité, 56 Rue Leblanc, Paris 75015, France.,Equipe Labellisée Ligue Contre le Cancer, Paris 75015, France
| | - Thibault Voron
- INSERM U970, Université Paris Descartes, Sorbonne Paris-Cité, 56 Rue Leblanc, Paris 75015, France.,Equipe Labellisée Ligue Contre le Cancer, Paris 75015, France
| | - Estelle Dransart
- Institut Curie, PSL Research University, Chemical Biology of Membranes and Therapeutic Delivery Unit, INSERM U 1143, CNRS UMR3666, 26 Rue d'Ulm 75248, Paris Cedex 05, France
| | - Federico Sandoval
- INSERM U970, Université Paris Descartes, Sorbonne Paris-Cité, 56 Rue Leblanc, Paris 75015, France.,Equipe Labellisée Ligue Contre le Cancer, Paris 75015, France
| | - Marc Riquet
- Hopital Europeen Georges Pompidou, Chrirurgie Thoracique Générale, Oncologique et Transplantation, 20 Rue Leblanc, Paris 75015, France
| | - Bastien Rance
- Department of Medical Bioinformatics, Hopital Européen Georges Pompidou, 20 Rue Leblanc, Paris 75015, France
| | - Elie Marcheteau
- INSERM U970, Université Paris Descartes, Sorbonne Paris-Cité, 56 Rue Leblanc, Paris 75015, France.,Equipe Labellisée Ligue Contre le Cancer, Paris 75015, France
| | - Elizabeth Fabre
- Departement of Medical Oncology, Hopital Européen Georges Pompidou, 20 Rue Leblanc, Paris 75015, France
| | - Marion Mandavit
- INSERM U970, Université Paris Descartes, Sorbonne Paris-Cité, 56 Rue Leblanc, Paris 75015, France.,Equipe Labellisée Ligue Contre le Cancer, Paris 75015, France
| | - Magali Terme
- INSERM U970, Université Paris Descartes, Sorbonne Paris-Cité, 56 Rue Leblanc, Paris 75015, France.,Equipe Labellisée Ligue Contre le Cancer, Paris 75015, France
| | - Charlotte Blanc
- INSERM U970, Université Paris Descartes, Sorbonne Paris-Cité, 56 Rue Leblanc, Paris 75015, France.,Equipe Labellisée Ligue Contre le Cancer, Paris 75015, France
| | - Jean-Baptiste Escudie
- Department of Medical Bioinformatics, Hopital Européen Georges Pompidou, 20 Rue Leblanc, Paris 75015, France
| | - Laure Gibault
- Department of Pathology, Hopital Européen Georges Pompidou, 20 Rue Leblanc, Paris 75015, France
| | - Françoise Le Pimpec Barthes
- Hopital Europeen Georges Pompidou, Chrirurgie Thoracique Générale, Oncologique et Transplantation, 20 Rue Leblanc, Paris 75015, France
| | - Clemence Granier
- INSERM U970, Université Paris Descartes, Sorbonne Paris-Cité, 56 Rue Leblanc, Paris 75015, France.,Equipe Labellisée Ligue Contre le Cancer, Paris 75015, France
| | - Luis C S Ferreira
- Institute of Biomedical Sciences, University of Sao Paulo, Av Prof Lineu Prestes, Sao Paulo SP-CEP 05508-900, Brazil
| | - Cecile Badoual
- INSERM U970, Université Paris Descartes, Sorbonne Paris-Cité, 56 Rue Leblanc, Paris 75015, France.,Equipe Labellisée Ligue Contre le Cancer, Paris 75015, France.,Department of Pathology, Hopital Européen Georges Pompidou, 20 Rue Leblanc, Paris 75015, France
| | - Ludger Johannes
- Institut Curie, PSL Research University, Chemical Biology of Membranes and Therapeutic Delivery Unit, INSERM U 1143, CNRS UMR3666, 26 Rue d'Ulm 75248, Paris Cedex 05, France
| | - Eric Tartour
- INSERM U970, Université Paris Descartes, Sorbonne Paris-Cité, 56 Rue Leblanc, Paris 75015, France.,Equipe Labellisée Ligue Contre le Cancer, Paris 75015, France.,Department of Pathology, Hopital Européen Georges Pompidou, 20 Rue Leblanc, Paris 75015, France
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21
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Outh-Gauer S, Le Tourneau C, Broudin C, Scotte F, Roussel H, Hans S, Mandavit M, Tartour E, Badoual C. Actualités sur l’immunothérapie en pathologie des voies aérodigestives supérieures. Ann Pathol 2017; 37:79-89. [DOI: 10.1016/j.annpat.2016.12.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 12/07/2016] [Indexed: 02/06/2023]
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22
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Pagès F, Granier C, Kirilovsky A, Elsissy C, Tartour E. Biomarqueurs prédictifs de réponse aux traitements bloquant les voies de costimulation inhibitrices. Bull Cancer 2017; 103 Suppl 1:S151-S159. [PMID: 28057179 DOI: 10.1016/s0007-4551(16)30373-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Immunotherapies targeting co-inhibitory receptors recently open a new promising approach of cancer treatment. Indeed, an objective clinical response was observed after treatment by anti-CTLA-4 and anti-PD-1 in many indications but the treatment still failed in 70 to 80 % of cases treated. Given the adverse effects and the high cost of these therapies, there is a need for the development of biomarkers. This review focus on potential predictive biomarkers. In peripheral blood, high level of Il-2 soluble receptor at baseline and absence of ICOS+ CD4-T lymphocytes induction may be associated with the absence of clinical response for melanoma patients treated by ipilimumab (anti-CTLA-4). PD-L1 - PD-1 ligand- expression on cancer lung adenocarcinoma and melanoma is associated with an improved clinical response to anti-PD-1/PD-L1. Nevertheless, a standardization of the biological assays is needed before a clinical translation. CD8-T cell tumor infiltration seems to be a prerequisite to an optimal clinical response after anti-PD-1/PD-L1 administration. In situ high mutational load is associated with a CD8-T cell infiltration and a higher rate of anti-PD-1 and anti-CTLA-4 response. If we consider a more holistic approach, the role of the gut microbiota in the response to these treatments is now well established in pre-clinical experiments. The universal marker is not identified so far, but the reliable marker should be in the tumor compartment and combining multiples markers could be suitable to predict response in different contexts.
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Affiliation(s)
- Franck Pagès
- Service d'immunologie biologique, plateforme d'immunomonitoring, hôpital européen Georges-Pompidou, AP-HP, Paris, France; Centre de recherche des Cordeliers, INSERM, eq15, UMRS 1138, Paris, France.
| | - Clémence Granier
- Université Paris-Descartes, Sorbonne-Paris-Cité, INSERM U970, Paris, France
| | - Amos Kirilovsky
- Service d'immunologie biologique, plateforme d'immunomonitoring, hôpital européen Georges-Pompidou, AP-HP, Paris, France; Centre de recherche des Cordeliers, INSERM, eq15, UMRS 1138, Paris, France
| | - Carine Elsissy
- Service d'immunologie biologique, plateforme d'immunomonitoring, hôpital européen Georges-Pompidou, AP-HP, Paris, France; Centre de recherche des Cordeliers, INSERM, eq15, UMRS 1138, Paris, France
| | - Eric Tartour
- Service d'immunologie biologique, plateforme d'immunomonitoring, hôpital européen Georges-Pompidou, AP-HP, Paris, France; Université Paris-Descartes, Sorbonne-Paris-Cité, INSERM U970, Paris, France.
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23
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Is There Still Room for Cancer Vaccines at the Era of Checkpoint Inhibitors. Vaccines (Basel) 2016; 4:vaccines4040037. [PMID: 27827885 PMCID: PMC5192357 DOI: 10.3390/vaccines4040037] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 10/23/2016] [Accepted: 10/31/2016] [Indexed: 02/07/2023] Open
Abstract
Checkpoint inhibitor (CPI) blockade is considered to be a revolution in cancer therapy, although most patients (70%–80%) remain resistant to this therapy. It has been hypothesized that only tumors with high mutation rates generate a natural antitumor T cell response, which could be revigorated by this therapy. In patients with no pre-existing antitumor T cells, a vaccine-induced T cell response is a rational option to counteract clinical resistance. This hypothesis has been validated in preclinical models using various cancer vaccines combined with inhibitory pathway blockade (PD-1-PDL1-2, CTLA-4-CD80-CD86). Enhanced T cell infiltration of various tumors has been demonstrated following this combination therapy. The timing of this combination appears to be critical to the success of this therapy and multiple combinations of immunomodulating antibodies (CPI antagonists or costimulatory pathway agonists) have reinforced the synergy with cancer vaccines. Only limited results are available in humans and this combined approach has yet to be validated. Comprehensive monitoring of the regulation of CPI and costimulatory molecules after administration of immunomodulatory antibodies (anti-PD1/PD-L1, anti-CTLA-4, anti-OX40, etc.) and cancer vaccines should help to guide the selection of the best combination and timing of this therapy.
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24
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Granier C, Karaki S, Roussel H, Badoual C, Tran T, Anson M, Fabre E, Oudard S, Tartour E. Immunothérapie des cancers : rationnel et avancées récentes. Rev Med Interne 2016; 37:694-700. [DOI: 10.1016/j.revmed.2016.05.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Accepted: 05/28/2016] [Indexed: 12/24/2022]
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25
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Karaki S, Pere H, Badoual C, Tartour E. Hope in the Long Road Toward the Development of a Therapeutic Human Papillomavirus Vaccine. Clin Cancer Res 2016; 22:2317-9. [DOI: 10.1158/1078-0432.ccr-16-0216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 02/15/2016] [Indexed: 11/16/2022]
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26
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Bialkowski L, van Weijnen A, Van der Jeught K, Renmans D, Daszkiewicz L, Heirman C, Stangé G, Breckpot K, Aerts JL, Thielemans K. Intralymphatic mRNA vaccine induces CD8 T-cell responses that inhibit the growth of mucosally located tumours. Sci Rep 2016; 6:22509. [PMID: 26931556 PMCID: PMC4773884 DOI: 10.1038/srep22509] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 02/16/2016] [Indexed: 01/01/2023] Open
Abstract
The lack of appropriate mouse models is likely one of the reasons of a limited translational success rate of therapeutic vaccines against cervical cancer, as rapidly growing ectopic tumours are commonly used for preclinical studies. In this work, we demonstrate that the tumour microenvironment of TC-1 tumours differs significantly depending on the anatomical location of tumour lesions (i.e. subcutaneously, in the lungs and in the genital tract). Our data demonstrate that E7-TriMix mRNA vaccine-induced CD8+ T lymphocytes migrate into the tumour nest and control tumour growth, although they do not express mucosa-associated markers such as CD103 or CD49a. We additionally show that despite the presence of the antigen-specific T cells in the tumour lesions, the therapeutic outcomes in the genital tract model remain limited. Here, we report that such a hostile tumour microenvironment can be reversed by cisplatin treatment, leading to a complete regression of clinically relevant tumours when combined with mRNA immunization. We thereby demonstrate the necessity of utilizing clinically relevant models for preclinical evaluation of anticancer therapies and the importance of a simultaneous combination of anticancer immune response induction with targeting of tumour environment.
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Affiliation(s)
- Lukasz Bialkowski
- Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Laarbeeklaan 103E, 1090 Brussels, Belgium
| | - Alexia van Weijnen
- Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Laarbeeklaan 103E, 1090 Brussels, Belgium
| | - Kevin Van der Jeught
- Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Laarbeeklaan 103E, 1090 Brussels, Belgium
| | - Dries Renmans
- Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Laarbeeklaan 103E, 1090 Brussels, Belgium
| | - Lidia Daszkiewicz
- Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Laarbeeklaan 103E, 1090 Brussels, Belgium
| | - Carlo Heirman
- Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Laarbeeklaan 103E, 1090 Brussels, Belgium
| | - Geert Stangé
- Diabetes Research Center, Vrije Universiteit Brussel, Laarbeeklaan 103E, 1090 Brussels, Belgium
| | - Karine Breckpot
- Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Laarbeeklaan 103E, 1090 Brussels, Belgium
| | - Joeri L Aerts
- Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Laarbeeklaan 103E, 1090 Brussels, Belgium
| | - Kris Thielemans
- Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Laarbeeklaan 103E, 1090 Brussels, Belgium
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