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Xin W, Huang B, Chi X, Liu Y, Xu M, Zhang Y, Li X, Su Q, Zhou Q. Structures of human γδ T cell receptor-CD3 complex. Nature 2024; 630:222-229. [PMID: 38657677 PMCID: PMC11153141 DOI: 10.1038/s41586-024-07439-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 04/18/2024] [Indexed: 04/26/2024]
Abstract
Gamma delta (γδ) T cells, a unique T cell subgroup, are crucial in various immune responses and immunopathology1-3. The γδ T cell receptor (TCR), which is generated by γδ T cells, recognizes a diverse range of antigens independently of the major histocompatibility complex2. The γδ TCR associates with CD3 subunits, initiating T cell activation and holding great potential in immunotherapy4. Here we report the structures of two prototypical human Vγ9Vδ2 and Vγ5Vδ1 TCR-CD3 complexes5,6, revealing two distinct assembly mechanisms that depend on Vγ usage. The Vγ9Vδ2 TCR-CD3 complex is monomeric, with considerable conformational flexibility in the TCRγ-TCRδ extracellular domain and connecting peptides. The length of the connecting peptides regulates the ligand association and T cell activation. A cholesterol-like molecule wedges into the transmembrane region, exerting an inhibitory role in TCR signalling. The Vγ5Vδ1 TCR-CD3 complex displays a dimeric architecture, whereby two protomers nestle back to back through the Vγ5 domains of the TCR extracellular domains. Our biochemical and biophysical assays further corroborate the dimeric structure. Importantly, the dimeric form of the Vγ5Vδ1 TCR is essential for T cell activation. These findings reveal organizing principles of the γδ TCR-CD3 complex, providing insights into the unique properties of γδ TCR and facilitating immunotherapeutic interventions.
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MESH Headings
- Humans
- CD3 Complex/chemistry
- CD3 Complex/immunology
- CD3 Complex/metabolism
- CD3 Complex/ultrastructure
- Cholesterol/metabolism
- Cholesterol/chemistry
- Cryoelectron Microscopy
- Ligands
- Lymphocyte Activation/immunology
- Models, Molecular
- Protein Domains
- Protein Multimerization
- Receptors, Antigen, T-Cell, gamma-delta/chemistry
- Receptors, Antigen, T-Cell, gamma-delta/immunology
- Receptors, Antigen, T-Cell, gamma-delta/metabolism
- Receptors, Antigen, T-Cell, gamma-delta/ultrastructure
- T-Lymphocytes/chemistry
- T-Lymphocytes/cytology
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- Signal Transduction
- Cell Membrane/chemistry
- Cell Membrane/metabolism
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Affiliation(s)
- Weizhi Xin
- Research Center for Industries of the Future, Center for Infectious Disease Research, Zhejiang Key Laboratory of Structural Biology, School of Life Sciences, Westlake University, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou, China
| | - Bangdong Huang
- Research Center for Industries of the Future, Center for Infectious Disease Research, Zhejiang Key Laboratory of Structural Biology, School of Life Sciences, Westlake University, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou, China
| | - Ximin Chi
- Research Center for Industries of the Future, Center for Infectious Disease Research, Zhejiang Key Laboratory of Structural Biology, School of Life Sciences, Westlake University, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou, China
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Science, Xiamen University, Xiamen, China
| | - Yuehua Liu
- Research Center for Industries of the Future, Center for Infectious Disease Research, Zhejiang Key Laboratory of Structural Biology, School of Life Sciences, Westlake University, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou, China
| | - Mengjiao Xu
- Research Center for Industries of the Future, Center for Infectious Disease Research, Zhejiang Key Laboratory of Structural Biology, School of Life Sciences, Westlake University, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou, China
| | - Yuanyuan Zhang
- Research Center for Industries of the Future, Center for Infectious Disease Research, Zhejiang Key Laboratory of Structural Biology, School of Life Sciences, Westlake University, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou, China
| | - Xu Li
- Research Center for Industries of the Future, Center for Infectious Disease Research, Zhejiang Key Laboratory of Structural Biology, School of Life Sciences, Westlake University, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou, China
| | - Qiang Su
- Research Center for Industries of the Future, Center for Infectious Disease Research, Zhejiang Key Laboratory of Structural Biology, School of Life Sciences, Westlake University, Hangzhou, China.
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou, China.
| | - Qiang Zhou
- Research Center for Industries of the Future, Center for Infectious Disease Research, Zhejiang Key Laboratory of Structural Biology, School of Life Sciences, Westlake University, Hangzhou, China.
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou, China.
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2
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Rafia C, Loizeau C, Renoult O, Harly C, Pecqueur C, Joalland N, Scotet E. The antitumor activity of human Vγ9Vδ2 T cells is impaired by TGF-β through significant phenotype, transcriptomic and metabolic changes. Front Immunol 2023; 13:1066336. [PMID: 36741364 PMCID: PMC9893774 DOI: 10.3389/fimmu.2022.1066336] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 12/22/2022] [Indexed: 01/21/2023] Open
Abstract
Despite significant advances, the eradication of cancer remains a clinical challenge which justifies the urgent exploration of additional therapeutic strategies such as immunotherapies. Human peripheral Vγ9Vδ2 T cells represent an attractive candidate subset for designing safe, feasible and effective adoptive T cell transfer-based therapies. However, following their infiltration within tumors, γδ T cells are exposed to various regulating constituents and signals from the tumor microenvironment (TME), which severely alter their antitumor functions. Here, we show that TGF-β, whose elevated production in some solid tumors is linked to a poor prognosis, interferes with the antigenic activation of human Vγ9Vδ2 T cells in vitro. This regulatory cytokine strongly impairs their cytolytic activity, which is accompanied by the induction of particular phenotypic, transcriptomic and metabolic changes. Collectively, these observations provide information for better understanding and targeting the impact of TME components to regulate the antitumor activity of human T cell effectors.
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Affiliation(s)
- Chirine Rafia
- Nantes Université, Inserm UMR 1307, CNRS UMR 6075, Université d’Angers, CRCI2NA, Nantes, France,LabEx IGO “Immunotherapy, Graft, Oncology”, Nantes, France
| | - Clément Loizeau
- Nantes Université, Inserm UMR 1307, CNRS UMR 6075, Université d’Angers, CRCI2NA, Nantes, France,LabEx IGO “Immunotherapy, Graft, Oncology”, Nantes, France
| | - Ophélie Renoult
- Nantes Université, Inserm UMR 1307, CNRS UMR 6075, Université d’Angers, CRCI2NA, Nantes, France,LabEx IGO “Immunotherapy, Graft, Oncology”, Nantes, France
| | - Christelle Harly
- Nantes Université, Inserm UMR 1307, CNRS UMR 6075, Université d’Angers, CRCI2NA, Nantes, France,LabEx IGO “Immunotherapy, Graft, Oncology”, Nantes, France
| | - Claire Pecqueur
- Nantes Université, Inserm UMR 1307, CNRS UMR 6075, Université d’Angers, CRCI2NA, Nantes, France,LabEx IGO “Immunotherapy, Graft, Oncology”, Nantes, France
| | - Noémie Joalland
- Nantes Université, Inserm UMR 1307, CNRS UMR 6075, Université d’Angers, CRCI2NA, Nantes, France,LabEx IGO “Immunotherapy, Graft, Oncology”, Nantes, France
| | - Emmanuel Scotet
- Nantes Université, Inserm UMR 1307, CNRS UMR 6075, Université d’Angers, CRCI2NA, Nantes, France,LabEx IGO “Immunotherapy, Graft, Oncology”, Nantes, France,*Correspondence: Emmanuel Scotet,
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3
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Ye W, Kong X, Zhang W, Weng Z, Wu X. The Roles of γδ T Cells in Hematopoietic Stem Cell Transplantation. Cell Transplant 2021; 29:963689720966980. [PMID: 33073597 PMCID: PMC7784584 DOI: 10.1177/0963689720966980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The αβ T-cell-depleted hematopoietic stem cell transplantation (HSCT) leads to lower relapse and better outcome, and may correlate strongly with expansion of donor-derived γδ T cells. γδ T cells play an important role in immune reconstitution and can exert a graft-versus-leukemia effect after HSCT. This review showed the recent literature on immune functions of γδ T cells after HSCT. The discrepancies between studies of γδ T cells in graft-versus-host disease may cause by its heterogeneous and various distinct subsets. And reconstitution of γδ T cells may play a potential immunoregulatory role in the infections after HSCT.
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Affiliation(s)
- Wanyi Ye
- Institute of Hematology, School of Medicine, 47885Jinan University, Guangzhou, China
| | - Xueting Kong
- Institute of Hematology, School of Medicine, 47885Jinan University, Guangzhou, China
| | - Wenbin Zhang
- Institute of Hematology, School of Medicine, 47885Jinan University, Guangzhou, China
| | - Zheng Weng
- Institute of Hematology, School of Medicine, 47885Jinan University, Guangzhou, China
| | - Xiuli Wu
- Institute of Hematology, School of Medicine, 47885Jinan University, Guangzhou, China.,Key Laboratory for Regenerative Medicine of Ministry of Education, 47885Jinan University, Guangzhou, China
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4
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Chabab G, Barjon C, Bonnefoy N, Lafont V. Pro-tumor γδ T Cells in Human Cancer: Polarization, Mechanisms of Action, and Implications for Therapy. Front Immunol 2020; 11:2186. [PMID: 33042132 PMCID: PMC7524881 DOI: 10.3389/fimmu.2020.02186] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/11/2020] [Indexed: 12/12/2022] Open
Abstract
The tumor immune microenvironment contributes to tumor initiation, progression and response to therapy. Among the immune cell subsets that play a role in the tumor microenvironment, innate-like T cells that express T cell receptors composed of γ and δ chains (γδ T cells) are of particular interest. Indeed, γδ T cells contribute to the immune response against many cancers, notably through their powerful effector functions that lead to the elimination of tumor cells and the recruitment of other immune cells. However, their presence in the tumor microenvironment has been associated with poor prognosis in various solid cancers (breast, colon and pancreatic cancer), suggesting that γδ T cells also display pro-tumor activities. In this review, we outline the current evidences of γδ T cell pro-tumor functions in human cancer. We also discuss the factors that favor γδ T cell polarization toward a pro-tumoral phenotype, the characteristics and functions of such cells, and the impact of pro-tumor subsets on γδ T cell-based therapies.
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Affiliation(s)
- Ghita Chabab
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut Régional du Cancer de Montpellier, Montpellier, France
| | - Clément Barjon
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut Régional du Cancer de Montpellier, Montpellier, France
| | - Nathalie Bonnefoy
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut Régional du Cancer de Montpellier, Montpellier, France
| | - Virginie Lafont
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université de Montpellier, Institut Régional du Cancer de Montpellier, Montpellier, France
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5
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Xu W, Lau ZWX, Fulop T, Larbi A. The Aging of γδ T Cells. Cells 2020; 9:E1181. [PMID: 32397491 PMCID: PMC7290956 DOI: 10.3390/cells9051181] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 04/30/2020] [Accepted: 05/07/2020] [Indexed: 12/11/2022] Open
Abstract
In the coming decades, many developed countries in the world are expecting the "greying" of their populations. This phenomenon poses unprecedented challenges to healthcare systems. Aging is one of the most important risk factors for infections and a myriad of diseases such as cancer, cardiovascular and neurodegenerative diseases. A common denominator that is implicated in these diseases is the immune system. The immune system consists of the innate and adaptive arms that complement each other to provide the host with a holistic defense system. While the diverse interactions between multiple arms of the immune system are necessary for its function, this complexity is amplified in the aging immune system as each immune cell type is affected differently-resulting in a conundrum that is especially difficult to target. Furthermore, certain cell types, such as γδ T cells, do not fit categorically into the arms of innate or adaptive immunity. In this review, we will first introduce the human γδ T cell family and its ligands before discussing parallels in mice. By covering the ontogeny and homeostasis of γδ T cells during their lifespan, we will better capture their evolution and responses to age-related stressors. Finally, we will identify knowledge gaps within these topics that can advance our understanding of the relationship between γδ T cells and aging, as well as age-related diseases such as cancer.
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Affiliation(s)
- Weili Xu
- Biology of Aging Program and Immunomonitoring Platform, Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Immunos Building, Biopolis, Singapore 138648, Singapore; (W.X.); (Z.W.X.L.)
| | - Zandrea Wan Xuan Lau
- Biology of Aging Program and Immunomonitoring Platform, Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Immunos Building, Biopolis, Singapore 138648, Singapore; (W.X.); (Z.W.X.L.)
| | - Tamas Fulop
- Department of Geriatrics, Faculty of Medicine, University of Sherbrooke, Sherbrooke, QC J1K 2R1, Canada;
| | - Anis Larbi
- Biology of Aging Program and Immunomonitoring Platform, Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Immunos Building, Biopolis, Singapore 138648, Singapore; (W.X.); (Z.W.X.L.)
- Department of Geriatrics, Faculty of Medicine, University of Sherbrooke, Sherbrooke, QC J1K 2R1, Canada;
- Department of Microbiology, National University of Singapore, Singapore 117597, Singapore
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6
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Chen YS, Chen IB, Pham G, Shao TY, Bangar H, Way SS, Haslam DB. IL-17-producing γδ T cells protect against Clostridium difficile infection. J Clin Invest 2020; 130:2377-2390. [PMID: 31990686 PMCID: PMC7190913 DOI: 10.1172/jci127242] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 01/17/2020] [Indexed: 01/04/2023] Open
Abstract
Colitis caused by Clostridium difficile infection is a growing cause of human morbidity and mortality, especially after antibiotic use in health care settings. The natural immunity of newborn infants and protective host immune mediators against C. difficile infection are not fully understood, with data suggesting that inflammation can be either protective or pathogenic. Here, we show an essential role for IL-17A produced by γδ T cells in host defense against C. difficile infection. Fecal extracts from children with C. difficile infection showed increased IL-17A and T cell receptor γ chain expression, and IL-17 production by intestinal γδ T cells was efficiently induced after infection in mice. C. difficile-induced tissue inflammation and mortality were markedly increased in mice deficient in IL-17A or γδ T cells. Neonatal mice, with naturally expanded RORγt+ γδ T cells poised for IL-17 production were resistant to C. difficile infection, whereas elimination of γδ T cells or IL-17A each efficiently overturned neonatal resistance against infection. These results reveal an expanded role for IL-17-producing γδ T cells in neonatal host defense against infection and provide a mechanistic explanation for the clinically observed resistance of infants to C. difficile colitis.
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Affiliation(s)
- Yee-Shiuan Chen
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Iuan-Bor Chen
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Giang Pham
- Division of Infectious Disease, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Tzu-Yu Shao
- Division of Infectious Disease, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Hansraj Bangar
- Division of Infectious Disease, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Sing Sing Way
- Division of Infectious Disease, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - David B. Haslam
- Division of Infectious Disease, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
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7
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Joalland N, Lafrance L, Oullier T, Marionneau-Lambot S, Loussouarn D, Jarry U, Scotet E. Combined chemotherapy and allogeneic human Vγ9Vδ2 T lymphocyte-immunotherapies efficiently control the development of human epithelial ovarian cancer cells in vivo. Oncoimmunology 2019; 8:e1649971. [PMID: 31646097 PMCID: PMC6791416 DOI: 10.1080/2162402x.2019.1649971] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 07/24/2019] [Accepted: 07/25/2019] [Indexed: 12/24/2022] Open
Abstract
Epithelial ovarian cancer (EOC) represents 5% of human gynecologic cancers in the world, is heterogeneous and highly invasive with a dismal prognosis (5 year-survival rate <35%). Diagnosis of EOC is frequently made at advanced stages and, despite aggressive treatments combining surgery and chemotherapy, fatal relapse rapidly occurs and is accompanied by a peritoneal carcinosis. In this context, novel therapeutical advances are urgently required. Adoptive transfer(s) of immune effector cells, including allogeneic human Vγ9Vδ2 T lymphocytes, represent attractive targets for efficiently and safely tracking tissue-invading tumor cells and controlling tumor dissemination in the organism. Our study describes the establishment of robust and physiological orthotopic model of human EOC in mouse, that includes surgical resection (ovariectomy) and chemotherapy, which are ineluctably accompanied by a fatal peritoneal carcinosis recurrence. Through a complementary set of in vitro and in vivo experiments, we provide here a preclinical proof of interest of the antitumor efficiency of adoptive transfers of allogeneic human Vγ9Vδ2 T lymphocytes against EOC, in association with surgical debulking and standard chemotherapies (i.e., taxanes and platinum salts). Moreover, our results indicate that chemo- and immunotherapies can be combined to improve the antitumor efficiency of immunotherapeutic lines. Altogether, these results further pave the way for next-generation antitumor immunotherapies, based on local administrations of human allogeneic human Vγ9Vδ2 T lymphocytes, in association with standard treatments.
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Affiliation(s)
- Noémie Joalland
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France.,LabEx IGO "Immunotherapy, Graft, Oncology", Nantes, France
| | - Laura Lafrance
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France.,LabEx IGO "Immunotherapy, Graft, Oncology", Nantes, France
| | | | | | - Delphine Loussouarn
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France.,Centre Hospitalier-Universitaire (CHU) de Nantes, Nantes, France
| | - Ulrich Jarry
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France.,LabEx IGO "Immunotherapy, Graft, Oncology", Nantes, France
| | - Emmanuel Scotet
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France.,LabEx IGO "Immunotherapy, Graft, Oncology", Nantes, France
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8
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Passos LSA, Magalhães LMD, Soares RP, Marques AF, Alves MLR, Giunchetti RC, Nunes MDCP, Gollob KJ, Dutra WO. Activation of Human CD11b + B1 B-Cells by Trypanosoma cruzi-Derived Proteins Is Associated With Protective Immune Response in Human Chagas Disease. Front Immunol 2019; 9:3015. [PMID: 30662439 PMCID: PMC6328447 DOI: 10.3389/fimmu.2018.03015] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 12/05/2018] [Indexed: 01/21/2023] Open
Abstract
B-cells mediate humoral adaptive immune response via the production of antibodies and cytokines, and by inducing T-cell activation. These functions can be attributed to distinct B-cell subpopulations. Infection with Trypanosoma cruzi, the causative agent of Chagas disease, induces a polyclonal B-cell activation and lytic antibody production, critical for controlling parasitemia. Individuals within the chronic phase of Chagas disease may remain in an asymptomatic form (indeterminate), or develop severe cardiomyopathy (cardiac form) that can lead to death. Currently, there is no effective vaccine to prevent Chagas disease, and no treatment to halt the development of the cardiomyopathy once it is installed. The pathology associated with cardiac Chagas disease is a result of an inflammatory reaction. Thus, discovering characteristics of the host's immune response that favor the maintenance of favorable heart function may unveil important immunotherapeutic targets. Given the importance of B cells in antibody production and parasite control, we investigated T. cruzi-derived antigenic fractions responsible for B-cell activation and whether frequencies and functional characteristics of B-cell subpopulations are associated with different clinical outcomes of human Chagas disease. We stimulated cells from indeterminate (I) and cardiac (C) Chagas patients, as well as non-infected individuals (NI), with T. cruzi-derived protein- (PRO), glycolipid- (GCL) and lipid (LIP)-enriched fractions and determined functional characteristics of B-cell subpopulations. Our results showed that the frequency of B-cells was similar amongst groups. PRO, but not GCL nor LIP, led to an increased frequency of B1 B-cells in I, but not C nor NI. Although stimulation with PRO induced higher TNF expression by B1 B-cells from C and I, as compared to NI, it induced expression of IL-10 in cells from I, but not C. Stimulation with PRO induced an increased frequency of the CD11b+ B1 B-cell subpopulation, which was associated with better cardiac function. Chagas patients displayed increased IgM production, and activation of gamma-delta T-cells, which have been associated with B1 B-cell function. Our data showed that PRO activates CD11b+ B1 B-cells, and that this activation is associated with a beneficial clinical status. These findings may have implications in designing new strategies focusing on B-cell activation to prevent Chagas disease cardiomyopathy.
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Affiliation(s)
- Livia Silva Araújo Passos
- Laboratory of Cell-Cell Interactions, Instituto de Ciências Biológicas, Departamento de Morfologia, Belo Horizonte, Brazil.,Pós-graduação em Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luísa Mourão Dias Magalhães
- Laboratory of Cell-Cell Interactions, Instituto de Ciências Biológicas, Departamento de Morfologia, Belo Horizonte, Brazil.,Pós-graduação em Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rodrigo Pinto Soares
- Pós-graduação em Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Laboratory of Cellular and Molecular Parasitology, Instituto René Rachou, Fundação Oswaldo Cruz, FIOCRUZ, Belo Horizonte, Brazil
| | - Alexandre F Marques
- Pós-graduação em Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Marina Luiza Rodrigues Alves
- Laboratory of Cell-Cell Interactions, Instituto de Ciências Biológicas, Departamento de Morfologia, Belo Horizonte, Brazil
| | - Rodolfo Cordeiro Giunchetti
- Laboratory of Cell-Cell Interactions, Instituto de Ciências Biológicas, Departamento de Morfologia, Belo Horizonte, Brazil.,Pós-graduação em Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Maria do Carmo Pereira Nunes
- Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Kenneth J Gollob
- Center for International Research, A.C.Camargo Cancer Center, São Paulo, Brazil.,Instituto Nacional de Ciência e Tecnologia Doenças Tropicais, Belo Horizonte, Brazil
| | - Walderez Ornelas Dutra
- Laboratory of Cell-Cell Interactions, Instituto de Ciências Biológicas, Departamento de Morfologia, Belo Horizonte, Brazil.,Pós-graduação em Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Instituto Nacional de Ciência e Tecnologia Doenças Tropicais, Belo Horizonte, Brazil
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9
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Arneth B. Coevolution of the coagulation and immune systems. Inflamm Res 2019; 68:117-123. [PMID: 30604212 DOI: 10.1007/s00011-018-01210-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 12/20/2018] [Accepted: 12/21/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Higher organisms rely on the coagulation and immune systems to fight disease-causing pathogens and other foreign invaders in the body. Coagulation has an important role as a barrier against foreign bodies, including bacteria, viruses, and protozoa. The protective responses associated with the coagulation and immune systems can protect the host organism from a wide range of pathogens, such as viruses, parasites, fungi, and even bacteria. AIM The purpose of this paper was to review available research on the evolution of the coagulation and immune systems. MATERIALS AND METHODS The study analyzed evidence from studies that have examined the coagulation and immune systems in the context of evolutionary processes. The articles used in the review were identified from the PsycINFO, CIHAHL, PubMed, Web of Science, and CIHAHL databases. RESULTS Studies have shown that both the coagulation system and the early immune system originated from the same initial system in early organisms. Some researchers argue that hemocytes from lower organisms are the common link from which the immune system and coagulation system developed. DISCUSSION AND CONCLUSION Simple organisms have hemocytes that can carry out both immune response and coagulation processes. Evolution led to the separation of these processes in higher organisms. Furthermore, this divergence resulted in the emergence of thrombocytes and plasmatic coagulation subsystems. These observations explain why there is some form of overlap between immunity and hemostasis, even in advanced organisms such as vertebrates. Several phenomena in clinical medicine related to coagulation and immunity can be explained by this overlap and are consistent with the hypothesis of the coevolution of coagulation and the immune system.
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Affiliation(s)
- Borros Arneth
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, University Hospital of the Universities of Marburg and Giessen UKGM, Justus Liebig University Giessen, Feulgenstr. 12, 35392, Giessen, Germany.
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10
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Gu S, Borowska MT, Boughter CT, Adams EJ. Butyrophilin3A proteins and Vγ9Vδ2 T cell activation. Semin Cell Dev Biol 2018; 84:65-74. [PMID: 29471037 PMCID: PMC6129423 DOI: 10.1016/j.semcdb.2018.02.007] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 12/22/2017] [Accepted: 02/08/2018] [Indexed: 02/07/2023]
Abstract
Despite playing critical roles in the immune response and having significant potential in immunotherapy, γδ T cells have garnered little of the limelight. One major reason for this paradox is that their antigen recognition mechanisms are largely unknown, limiting our understanding of their biology and our potential to modulate their activity. One of the best-studied γδ subsets is the human Vγ9Vδ2T cell population, which predominates in peripheral blood and can combat both microbial infections and cancers. Although it has been known for decades that Vγ9Vδ2T cells respond to the presence of small pyrophosphate-based metabolites, collectively named phosphoantigens (pAgs), derived from microbial sources or malignant cells, the molecular basis for this response has been unclear. A major breakthrough in this area came with the identification of the Butyrophilin 3A (BTN3A) proteins, members of the Butyrophilin/Butyrophilin-like protein family, as mediators between pAgs and Vγ9Vδ2T cells. In this article, we review the most recent studies regarding pAg activation of human Vγ9Vδ2T cells, mainly focusing on the role of BTN3A as the pAg sensing molecule, as well as its potential impact on downstream events of the activation process.
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Affiliation(s)
- Siyi Gu
- Department of Biochemistry and Molecular Biophysics, University of Chicago, Chicago, IL 60637, USA
| | - Marta T Borowska
- Department of Biochemistry and Molecular Biophysics, University of Chicago, Chicago, IL 60637, USA
| | | | - Erin J Adams
- Department of Biochemistry and Molecular Biophysics, University of Chicago, Chicago, IL 60637, USA; Committee on Immunology, University of Chicago, Chicago, IL 60637, USA; Biophysical Sciences, University of Chicago, Chicago, IL 60637, USA; Committee on Cancer Biology, University of Chicago, Chicago, IL 60637, USA.
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11
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Juraske C, Wipa P, Morath A, Hidalgo JV, Hartl FA, Raute K, Oberg HH, Wesch D, Fisch P, Minguet S, Pongcharoen S, Schamel WW. Anti-CD3 Fab Fragments Enhance Tumor Killing by Human γδ T Cells Independent of Nck Recruitment to the γδ T Cell Antigen Receptor. Front Immunol 2018; 9:1579. [PMID: 30038626 PMCID: PMC6046647 DOI: 10.3389/fimmu.2018.01579] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 06/26/2018] [Indexed: 01/18/2023] Open
Abstract
T lymphocytes expressing the γδ T cell receptor (γδ TCR) can recognize antigens expressed by tumor cells and subsequently kill these cells. γδ T cells are indeed used in cancer immunotherapy clinical trials. The anti-CD3ε antibody UCHT1 enhanced the in vitro tumor killing activity of human γδ T cells by an unknown molecular mechanism. Here, we demonstrate that Fab fragments of UCHT1, which only bind monovalently to the γδ TCR, also enhanced tumor killing by expanded human Vγ9Vδ2 γδ T cells or pan-γδ T cells of the peripheral blood. The Fab fragments induced Nck recruitment to the γδ TCR, suggesting that they stabilized the γδ TCR in an active CD3ε conformation. However, blocking the Nck-CD3ε interaction in γδ T cells using the small molecule inhibitor AX-024 neither reduced the γδ T cells' natural nor the Fab-enhanced tumor killing activity. Likewise, Nck recruitment to CD3ε was not required for intracellular signaling, CD69 and CD25 up-regulation, or cytokine secretion by γδ T cells. Thus, the Nck-CD3ε interaction seems to be dispensable in γδ T cells.
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Affiliation(s)
- Claudia Juraske
- Department of Immunology, Faculty of Biology, University of Freiburg, Freiburg, Germany.,Centre for Biological Signalling Studies (BIOSS), University of Freiburg, Freiburg, Germany.,Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Piyamaporn Wipa
- Department of Immunology, Faculty of Biology, University of Freiburg, Freiburg, Germany.,Centre for Biological Signalling Studies (BIOSS), University of Freiburg, Freiburg, Germany.,Department of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Anna Morath
- Department of Immunology, Faculty of Biology, University of Freiburg, Freiburg, Germany.,Centre for Biological Signalling Studies (BIOSS), University of Freiburg, Freiburg, Germany.,Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, Freiburg, Germany
| | - Jose Villacorta Hidalgo
- Department of Pathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,University Hospital "José de San Martin", University of Buenos Aires, Buenos Aires, Argentina
| | - Frederike A Hartl
- Department of Immunology, Faculty of Biology, University of Freiburg, Freiburg, Germany.,Centre for Biological Signalling Studies (BIOSS), University of Freiburg, Freiburg, Germany.,Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Katrin Raute
- Department of Immunology, Faculty of Biology, University of Freiburg, Freiburg, Germany.,Centre for Biological Signalling Studies (BIOSS), University of Freiburg, Freiburg, Germany.,Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, Freiburg, Germany
| | - Hans-Heinrich Oberg
- Institute of Immunology, Christian-Albrechts University of Kiel, Kiel, Germany
| | - Daniela Wesch
- Institute of Immunology, Christian-Albrechts University of Kiel, Kiel, Germany
| | - Paul Fisch
- Department of Pathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Susana Minguet
- Department of Immunology, Faculty of Biology, University of Freiburg, Freiburg, Germany.,Centre for Biological Signalling Studies (BIOSS), University of Freiburg, Freiburg, Germany.,Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Sutatip Pongcharoen
- Division of Immunology, Department of Medicine, Faculty of Medicine, Naresuan University, Phitsanulok, Thailand.,Research Center for Academic Excellence in Petroleum, Petrochemical and Advanced Materials, Faculty of Science, Naresuan University, Phitsanulok, Thailand.,Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Wolfgang W Schamel
- Department of Immunology, Faculty of Biology, University of Freiburg, Freiburg, Germany.,Centre for Biological Signalling Studies (BIOSS), University of Freiburg, Freiburg, Germany.,Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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12
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Pistoia V, Tumino N, Vacca P, Veneziani I, Moretta A, Locatelli F, Moretta L. Human γδ T-Cells: From Surface Receptors to the Therapy of High-Risk Leukemias. Front Immunol 2018; 9:984. [PMID: 29867961 PMCID: PMC5949323 DOI: 10.3389/fimmu.2018.00984] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 04/20/2018] [Indexed: 01/13/2023] Open
Abstract
γδ T lymphocytes are potent effector cells, capable of efficiently killing tumor and leukemia cells. Their activation is mediated by γδ T-cell receptor (TCR) and by activating receptors shared with NK cells (e.g., NKG2D and DNAM-1). γδ T-cell triggering occurs upon interaction with specific ligands, including phosphoantigens (for Vγ9Vδ2 TCR), MICA-B and UL16 binding protein (for NKG2D), and PVR and Nectin-2 (for DNAM-1). They also respond to cytokines undergoing proliferation and release of cytokines/chemokines. Although at the genomic level γδ T-cells have the potential of an extraordinary TCR diversification, in tissues they display a restricted repertoire. Recent studies have identified various γδ TCR rearrangements following either hematopoietic stem cell transplantation (HSCT) or cytomegalovirus infection, accounting for their “adaptive” potential. In humans, peripheral blood γδ T-cells are primarily composed of Vγ9Vδ2 chains, while a minor proportion express Vδ1. They do not recognize antigens in the context of MHC molecules, thus bypassing tumor escape based on MHC class I downregulation. In view of their potent antileukemia activity and absence of any relevant graft-versus-host disease-inducing effect, γδ T-cells may play an important role in the successful clinical outcome of patients undergoing HLA-haploidentical HSCT depleted of TCR αβ T/CD19+ B lymphocytes to cure high-risk acute leukemias. In this setting, high numbers of both γδ T-cells (Vδ1 and Vδ2) and NK cells are infused together with CD34+ HSC and may contribute to rapid control of infections and leukemia relapse. Notably, zoledronic acid potentiates the cytolytic activity of γδ T-cells in vitro and its infusion in patients strongly promotes γδ T-cell differentiation and cytolytic activity; thus, treatment with this agent may contribute to further improve the patient clinical outcome after HLA-haploidentical HSCT depleted of TCR αβ T/CD19+ B lymphocytes.
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Affiliation(s)
- Vito Pistoia
- Immunology Area, IRCCS Bambino Gesù Pediatric Hospital, Rome, Italy
| | - Nicola Tumino
- Immunology Area, IRCCS Bambino Gesù Pediatric Hospital, Rome, Italy
| | - Paola Vacca
- Immunology Area, IRCCS Bambino Gesù Pediatric Hospital, Rome, Italy
| | - Irene Veneziani
- Immunology Area, IRCCS Bambino Gesù Pediatric Hospital, Rome, Italy
| | - Alessandro Moretta
- Dipartimento di Medicina Sperimentale and Centro di Eccellenza per le Ricerche Biomediche, Università degli Studi di Genova, Genoa, Italy
| | - Franco Locatelli
- Department of Onco-Hematology and Cell and Gene Therapy, IRCCS Bambino Gesù Pediatric Hospital, Rome, Italy.,Department of Pediatric Science, University of Pavia, Pavia, Italy
| | - Lorenzo Moretta
- Immunology Area, IRCCS Bambino Gesù Pediatric Hospital, Rome, Italy
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13
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Simões AE, Di Lorenzo B, Silva-Santos B. Molecular Determinants of Target Cell Recognition by Human γδ T Cells. Front Immunol 2018; 9:929. [PMID: 29755480 PMCID: PMC5934422 DOI: 10.3389/fimmu.2018.00929] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 04/16/2018] [Indexed: 12/22/2022] Open
Abstract
The unique capabilities of gamma-delta (γδ) T cells to recognize cells under stressed conditions, particularly infected or transformed cells, and killing them or regulating the immune response against them, paved the way to the development of promising therapeutic strategies for cancer and infectious diseases. From a mechanistic standpoint, numerous studies have unveiled a remarkable flexibility of γδ T cells in employing their T cell receptor and/or NK cell receptors for target cell recognition, even if the relevant ligands often remain uncertain. Here, we review the accumulated knowledge on the diverse mechanisms of target cell recognition by γδ T cells, focusing on human γδ T cells, to provide an integrated perspective of their therapeutic potential in cancer and infectious diseases.
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Affiliation(s)
- André E Simões
- Faculdade de Medicina, Instituto de Medicina Molecular, Universidade de Lisboa, Lisbon, Portugal
| | - Biagio Di Lorenzo
- Faculdade de Medicina, Instituto de Medicina Molecular, Universidade de Lisboa, Lisbon, Portugal.,Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Bruno Silva-Santos
- Faculdade de Medicina, Instituto de Medicina Molecular, Universidade de Lisboa, Lisbon, Portugal
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14
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Towstyka NY, Shiromizu CM, Keitelman I, Sabbione F, Salamone GV, Geffner JR, Trevani AS, Jancic CC. Modulation of γδ T-cell activation by neutrophil elastase. Immunology 2017; 153:225-237. [PMID: 28888033 DOI: 10.1111/imm.12835] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 08/29/2017] [Accepted: 09/01/2017] [Indexed: 12/25/2022] Open
Abstract
γδ T cells are non-conventional, innate-like T cells, characterized by a restricted T-cell receptor repertoire. They participate in protective immunity responses against extracellular and intracellular pathogens, tumour surveillance, modulation of innate and adaptive immune responses, tissue healing, epithelial cell maintenance and regulation of physiological organ function. In this study, we investigated the role of neutrophils during the activation of human blood γδ T cells through CD3 molecules. We found that the up-regulation of CD69 expression, and the production of interferon-γ and tumour necrosis factor-α induced by anti-CD3 antibodies was potentiated by neutrophils. We found that inhibition of caspase-1 and neutralization of interleukin-18 did not affect neutrophil-mediated modulation. By contrast, the treatment with serine protease inhibitors prevented the potentiation of γδ T-cell activation induced by neutrophils. Moreover, the addition of elastase to γδ T-cell culture increased their stimulation, and the treatment of neutrophils with elastase inhibitor prevented the effect of neutrophils on γδ T-cell activation. Furthermore, we demonstrated that the effect of elastase on γδ T cells was mediated through the protease-activated receptor, PAR1, because the inhibition of this receptor with a specific antagonist, RWJ56110, abrogated the effect of neutrophils on γδ T-cell activation.
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Affiliation(s)
- Nadia Yasmín Towstyka
- Instituto de Medicina Experimental (IMEX) CONICET - Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Carolina Maiumi Shiromizu
- Instituto de Medicina Experimental (IMEX) CONICET - Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Irene Keitelman
- Instituto de Medicina Experimental (IMEX) CONICET - Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Florencia Sabbione
- Instituto de Medicina Experimental (IMEX) CONICET - Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Gabriela Verónica Salamone
- Instituto de Medicina Experimental (IMEX) CONICET - Academia Nacional de Medicina, Buenos Aires, Argentina.,Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Jorge Raúl Geffner
- Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina.,Instituto de Investigaciones Biomédicas en Retrovirus y SIDA (INBIRS), Buenos Aires, Argentina
| | - Analía Silvina Trevani
- Instituto de Medicina Experimental (IMEX) CONICET - Academia Nacional de Medicina, Buenos Aires, Argentina.,Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Carolina Cristina Jancic
- Instituto de Medicina Experimental (IMEX) CONICET - Academia Nacional de Medicina, Buenos Aires, Argentina.,Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
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15
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Xiang Z, Tu W. Dual Face of Vγ9Vδ2-T Cells in Tumor Immunology: Anti- versus Pro-Tumoral Activities. Front Immunol 2017; 8:1041. [PMID: 28894450 PMCID: PMC5581348 DOI: 10.3389/fimmu.2017.01041] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 08/11/2017] [Indexed: 12/31/2022] Open
Abstract
Vγ9Vδ2-T cells are considered as potent effector cells for tumor immunotherapy through directly killing tumor cells and indirectly regulating other innate and adaptive immune cells to establish antitumoral immunity. The antitumoral activity of Vγ9Vδ2-T cells is governed by a complicated set of activating and inhibitory cell receptors. In addition, cytokine milieu in tumor microenvironment can also induce the pro-tumoral activities and functional plasticity of Vγ9Vδ2-T cells. Here, we review the anti- versus pro-tumoral activities of Vγ9Vδ2-T cells and discuss the mechanisms underlying the recognition, activation, differentiation and regulation of Vγ9Vδ2-T cells in tumor immunosurveillance. The comprehensive understanding of the dual face of Vγ9Vδ2-T cells in tumor immunology may improve the therapeutic efficacy and clinical outcomes of Vγ9Vδ2-T cell-based tumor immunotherapy.
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Affiliation(s)
- Zheng Xiang
- Li Ka Shing Faculty of Medicine, Department of Paediatrics and Adolescent Medicine, Laboratory for Translational Immunology, University of Hong Kong, Hong Kong, Hong Kong
| | - Wenwei Tu
- Li Ka Shing Faculty of Medicine, Department of Paediatrics and Adolescent Medicine, Laboratory for Translational Immunology, University of Hong Kong, Hong Kong, Hong Kong
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16
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Reboursiere E, Gac AC, Garnier A, Salaun V, Reman O, Pham AD, Cabrera Q, Khoy K, Vilque JP, Fruchart C, Chantepie S, Johnson-Ansah H, Macro M, Cheze S, Benabed K, Mear JB, Troussard X, Damaj G, Le Mauff B, Toutirais O. Increased frequencies of circulating and tumor-resident Vδ1 + T cells in patients with diffuse large B-cell lymphoma. Leuk Lymphoma 2017; 59:187-195. [PMID: 28562153 DOI: 10.1080/10428194.2017.1321751] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Gamma-delta (γδ) T cells contribute to the innate immune response against cancer. In samples of 20 patients upon DLBCL diagnosis, we found that Vδ1+ T cells were the major γδ T cell subset in tumors and PBMCs of patients, while Vδ2 T cells were preponderant in PBMCs of healthy subjects. Interestingly, the germinal center (GC) subtype was associated with an increase in Vδ1+ T cells in tumors, whereas the non-GC subtype was associated with a lower frequency of γδ T cells. While circulating Vδ1+ T cells of patients or HSs mostly exhibited a naïve phenotype, the majority of tumor Vδ1+ T cells showed a central memory phenotype. Resident or circulating γδ T cells from patients were not functionally impaired since they produced high levels of IFN-γ. Collectively, our findings are in favor of γδ T cell activation in tumors and open new perspectives for their modulation in DLBCL immunotherapy.
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Affiliation(s)
- Emilie Reboursiere
- a Department of Clinical Hematology , CHU de Caen , Caen , France.,b Normandie University, UNICAEN, INSERM U919, Sérine Protéases et Physiopathologie de l'unité Neurovasculaire , Caen , France
| | - Anne-Claire Gac
- a Department of Clinical Hematology , CHU de Caen , Caen , France
| | - Anthony Garnier
- b Normandie University, UNICAEN, INSERM U919, Sérine Protéases et Physiopathologie de l'unité Neurovasculaire , Caen , France
| | - Véronique Salaun
- c Department of Hemato-Biology , University Hospital of Caen , Caen , France
| | - Oumedaly Reman
- a Department of Clinical Hematology , CHU de Caen , Caen , France
| | - Anne-Dominique Pham
- d Department of Biostatistics and Clinical Research , University Hospital of Caen , Caen , France
| | - Quentin Cabrera
- a Department of Clinical Hematology , CHU de Caen , Caen , France
| | - Kathy Khoy
- e Department of Immunology , University Hospital of Caen , Caen , France
| | | | | | | | | | - Margaret Macro
- a Department of Clinical Hematology , CHU de Caen , Caen , France
| | - Stéphane Cheze
- a Department of Clinical Hematology , CHU de Caen , Caen , France
| | - Khaled Benabed
- a Department of Clinical Hematology , CHU de Caen , Caen , France
| | | | - Xavier Troussard
- c Department of Hemato-Biology , University Hospital of Caen , Caen , France
| | - Gandhi Damaj
- a Department of Clinical Hematology , CHU de Caen , Caen , France
| | - Brigitte Le Mauff
- b Normandie University, UNICAEN, INSERM U919, Sérine Protéases et Physiopathologie de l'unité Neurovasculaire , Caen , France.,e Department of Immunology , University Hospital of Caen , Caen , France
| | - Olivier Toutirais
- b Normandie University, UNICAEN, INSERM U919, Sérine Protéases et Physiopathologie de l'unité Neurovasculaire , Caen , France.,e Department of Immunology , University Hospital of Caen , Caen , France
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17
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Woo HJ, Yu C, Reifman J. Collective Genetic Interaction Effects and the Role of Antigen-Presenting Cells in Autoimmune Diseases. PLoS One 2017; 12:e0169918. [PMID: 28081217 PMCID: PMC5231276 DOI: 10.1371/journal.pone.0169918] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 12/23/2016] [Indexed: 12/20/2022] Open
Abstract
Autoimmune diseases occur when immune cells fail to develop or lose their tolerance toward self and destroy body's own tissues. Both insufficient negative selection of self-reactive T cells and impaired development of regulatory T cells preventing effector cell activation are believed to contribute to autoimmunity. Genetic predispositions center around the major histocompatibility complex (MHC) class II loci involved in antigen presentation, the key determinant of CD4+ T cell activation. Recent studies suggested that variants in the MHC region also exhibit significant non-additive interaction effects. However, collective interactions involving large numbers of single nucleotide polymorphisms (SNPs) contributing to such effects are yet to be characterized. In addition, relatively little is known about the cell-type-specificity of such interactions in the context of cellular pathways. Here, we analyzed type 1 diabetes (T1D) and rheumatoid arthritis (RA) genome-wide association data sets via large-scale, high-performance computations and inferred collective interaction effects involving MHC SNPs using the discrete discriminant analysis. Despite considerable differences in the details of SNP interactions in T1D and RA data, the enrichment pattern of interacting pairs in reference epigenomes was remarkably similar: statistically significant interactions were epigenetically active in cell-type combinations connecting B cells to T cells and intestinal epithelial cells, with both helper and regulatory T cells showing strong disease-associated interactions with B cells. Our results provide direct genetic evidence pointing to the important roles B cells play as antigen-presenting cells toward CD4+ T cells in the context of central and peripheral tolerance. In addition, they are consistent with recent experimental studies suggesting that the repertoire of B cell-specific self-antigens in the thymus are critical to the effective control of corresponding autoimmune activation in peripheral tissues.
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MESH Headings
- Antigen-Presenting Cells/cytology
- Antigen-Presenting Cells/immunology
- Antigen-Presenting Cells/metabolism
- Area Under Curve
- Arthritis, Rheumatoid/genetics
- Arthritis, Rheumatoid/pathology
- Autoimmune Diseases/genetics
- Autoimmune Diseases/pathology
- B-Lymphocytes/cytology
- B-Lymphocytes/immunology
- B-Lymphocytes/metabolism
- CD4-Positive T-Lymphocytes/cytology
- CD4-Positive T-Lymphocytes/immunology
- CD4-Positive T-Lymphocytes/metabolism
- Diabetes Mellitus, Type 1/genetics
- Diabetes Mellitus, Type 1/pathology
- Epigenomics
- Gene Regulatory Networks
- Genome-Wide Association Study
- Histocompatibility Antigens Class II/genetics
- Humans
- Linkage Disequilibrium
- Polymorphism, Single Nucleotide
- ROC Curve
- T-Lymphocytes, Helper-Inducer/cytology
- T-Lymphocytes, Helper-Inducer/immunology
- T-Lymphocytes, Helper-Inducer/metabolism
- T-Lymphocytes, Regulatory/cytology
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- Thymus Gland/cytology
- Thymus Gland/metabolism
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Affiliation(s)
- Hyung Jun Woo
- Biotechnology High-Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, Maryland, United States of America
- * E-mail: (HJW); (JR)
| | - Chenggang Yu
- Biotechnology High-Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, Maryland, United States of America
| | - Jaques Reifman
- Biotechnology High-Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, Maryland, United States of America
- * E-mail: (HJW); (JR)
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18
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Wistuba-Hamprecht K, Martens A, Haehnel K, Geukes Foppen M, Yuan J, Postow MA, Wong P, Romano E, Khammari A, Dreno B, Capone M, Ascierto PA, Demuth I, Steinhagen-Thiessen E, Larbi A, Schilling B, Schadendorf D, Wolchok JD, Blank CU, Pawelec G, Garbe C, Weide B. Proportions of blood-borne Vδ1+ and Vδ2+ T-cells are associated with overall survival of melanoma patients treated with ipilimumab. Eur J Cancer 2016; 64:116-26. [PMID: 27400322 DOI: 10.1016/j.ejca.2016.06.001] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 05/30/2016] [Accepted: 06/01/2016] [Indexed: 10/21/2022]
Abstract
Human γδ T-cells possess regulatory and cytotoxic capabilities, and could potentially influence the efficacy of immunotherapies. We analysed the frequencies of peripheral γδ T-cells, including their most prominent subsets (Vδ1+ and Vδ2+ cells) and differentiation states in 109 melanoma patients and 109 healthy controls. We additionally analysed the impact of γδ T-cells on overall survival (OS) calculated from the first dose of ipilimumab in melanoma patients. Higher median frequencies of Vδ1+ cells and lower median frequencies of Vδ2+ cells were identified in patients compared to healthy subjects (Vδ1+: 30% versus 15%, Vδ2+: 39% versus 64%, both p < 0.001). Patients with higher frequencies of Vδ1+ cells (≥30%) had poorer OS (p = 0.043) and a Vδ1+ differentiation signature dominated by late-differentiated phenotypes. In contrast, higher frequencies of Vδ2+ cells (≥39%) were associated with longer survival (p = 0.031) independent of the M category or lactate dehydrogenase level. Patients with decreasing frequencies of Vδ2+ cells under ipilimumab treatment had worse OS and a lower rate of clinical benefit than patients without such decreases. Therefore, we suggest frequencies of both Vδ1+ and Vδ2+ cells as candidate biomarkers for outcome in melanoma patients following ipilimumab. Further studies are needed to validate these results and to clarify whether they represent prognostic associations or whether γδ T-cells are specifically and/or functionally linked to the mode of action of ipilimumab.
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Affiliation(s)
- Kilian Wistuba-Hamprecht
- Department of Dermatology, University Medical Center, Tübingen, Germany; Department of Internal Medicine II, University Medical Center, Tübingen, Germany.
| | - Alexander Martens
- Department of Dermatology, University Medical Center, Tübingen, Germany; Department of Internal Medicine II, University Medical Center, Tübingen, Germany
| | - Karin Haehnel
- Department of Internal Medicine II, University Medical Center, Tübingen, Germany
| | | | - Jianda Yuan
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Michael A Postow
- Memorial Sloan Kettering Cancer Center, New York, NY, USA; Weill Cornell Medical College, New York, NY, USA
| | - Phillip Wong
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Emanuela Romano
- Department of Oncology, Immunotherapy Unit, INSERM U932, Institut Curie, Paris, France
| | - Amir Khammari
- Department of Oncodermatology, INSERM Research Unit 892, University Hospital, Nantes, France
| | - Brigitte Dreno
- Department of Oncodermatology, INSERM Research Unit 892, University Hospital, Nantes, France
| | | | | | - Ilja Demuth
- Research Group on Geriatrics, Charité - Universitaetsmedizin, Berlin, Germany; Institute of Medical and Human Genetics, Charité - Universitätsmedizin Berlin, Germany
| | | | - Anis Larbi
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | - Bastian Schilling
- Department of Dermatology, University Hospital, West German Cancer Center, University Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Dirk Schadendorf
- Department of Dermatology, University Hospital, West German Cancer Center, University Duisburg-Essen, Essen, Germany; German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Jedd D Wolchok
- Memorial Sloan Kettering Cancer Center, New York, NY, USA; Weill Cornell Medical College, New York, NY, USA
| | | | - Graham Pawelec
- Department of Internal Medicine II, University Medical Center, Tübingen, Germany; School of Science and Technology, College of Arts and Science, Nottingham Trent University, Nottingham, UK; Division of Cancer Studies, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Claus Garbe
- Department of Dermatology, University Medical Center, Tübingen, Germany
| | - Benjamin Weide
- Department of Dermatology, University Medical Center, Tübingen, Germany
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19
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Menderes G, Schwab CL, Black J, Santin AD. The Role of the Immune System in Ovarian Cancer and Implications on Therapy. Expert Rev Clin Immunol 2016; 12:681-95. [PMID: 26821930 DOI: 10.1586/1744666x.2016.1147957] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Ovarian cancer is the leading cause of death from gynecologic malignancy in the United States. While the treatment options have improved with conventional cytotoxic chemotherapy and advanced surgical techniques, disease recurrence is common and fatal in nearly all cases. Current evidence suggests that the immune system and its ability to recognize and eliminate microscopic disease is paramount in preventing recurrence. The goal of immunotherapy is to balance the activation of the immune system against cancer while preventing the potential for tremendous toxicity elicited by immune modulation. In this paper we will review the role of immune system in disease pathogenesis and different immunotherapies available for the treatment of ovarian cancer as well as current ongoing studies and potential future directions.
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Affiliation(s)
- Gulden Menderes
- a Department of Obstetrics, Gynecology & Reproductive Sciences , Yale University School of Medicine , New Haven , CT , USA
| | - Carlton L Schwab
- a Department of Obstetrics, Gynecology & Reproductive Sciences , Yale University School of Medicine , New Haven , CT , USA
| | - Jonathan Black
- a Department of Obstetrics, Gynecology & Reproductive Sciences , Yale University School of Medicine , New Haven , CT , USA
| | - Alessandro D Santin
- a Department of Obstetrics, Gynecology & Reproductive Sciences , Yale University School of Medicine , New Haven , CT , USA
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20
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Minculescu L, Sengeløv H. The role of gamma delta T cells in haematopoietic stem cell transplantation. Scand J Immunol 2015; 81:459-68. [PMID: 25753378 DOI: 10.1111/sji.12289] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 02/27/2015] [Indexed: 01/18/2023]
Abstract
Although haematopoietic stem cell transplantation (HSCT) is a potential curative treatment for haematological malignancies, it is still a procedure associated with substantial morbidity and mortality due to toxicity, graft-versus-host disease (GVHD) and relapse. Recent attempts of developing safer transplantation modalities increasingly focuses on selective cell depletion and graft engineering with the aim of retaining beneficial immune donor cells for the graft-versus-leukaemia (GVL) effect. In this context, the adoptive and especially innate effector functions of γδ T cells together with clinical studies investigating the effect of γδ T cells in relation to HSCT are reviewed. In addition to phospho-antigen recognition by the γδ T cell receptor (TCR), γδ T cells express receptors of the natural killer (NK) and natural cytotoxicity (NCR) families enabling them to recognize and kill leukaemia cells. Antigen recognition independent from the major histocompatibility complex (MHC) allows for the theoretical possibility of mediating GVL without an allogeneic response in terms of GVHD. Early studies on the impact of γδ T cells in HSCT have reported conflicting results. Recent studies, however, do suggest an overall favourable effect of high γδ T cell immune reconstitution after HSCT; patients with elevated numbers of γδ T cells had a significantly higher overall survival rate and a decreased rate of acute GVHD compared to patients with low or normal γδ T cell counts. Further research in terms of effector mechanisms, subtypes and tissue distribution during the course of HSCT is needed to assess the potentially beneficial effects of γδ T cells in this setting.
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Affiliation(s)
- L Minculescu
- Department of Clinical Immunology, National University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - H Sengeløv
- Department of Haematology, National University Hospital, Rigshospitalet, Copenhagen, Denmark
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21
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Schwab CL, English DP, Roque DM, Pasternak M, Santin AD. Past, present and future targets for immunotherapy in ovarian cancer. Immunotherapy 2015; 6:1279-93. [PMID: 25524384 DOI: 10.2217/imt.14.90] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Ovarian cancer is the leading cause of death from gynecologic malignancy in the US. Treatments have improved with conventional cytotoxic chemotherapy and advanced surgical techniques but disease recurrence is common and fatal in nearly all cases. Current evidence suggests that the immune system and its ability to recognize and eliminate microscopic disease is paramount in preventing recurrence. Ovarian cancer immunotherapy is targeting tumors through active, passive and adoptive approaches. The goal of immunotherapy is to balance the activation of the immune system against cancer while preventing the potential for tremendous toxicity elicited by immune modulation. In this paper we will review the different immunotherapies available for ovarian cancer as well as current ongoing studies and potential future directions.
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Affiliation(s)
- Carlton L Schwab
- Department of Obstetrics, Gynecology & Reproductive Sciences, Division of Gynecologic Oncology, Yale School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA
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22
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Transfer of mRNA Encoding Invariant NKT Cell Receptors Imparts Glycolipid Specific Responses to T Cells and γδT Cells. PLoS One 2015; 10:e0131477. [PMID: 26121617 PMCID: PMC4488262 DOI: 10.1371/journal.pone.0131477] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 06/01/2015] [Indexed: 11/19/2022] Open
Abstract
Cell-based therapies using genetically engineered lymphocytes expressing antigen-specific T cell receptors (TCRs) hold promise for the treatment of several types of cancers. Almost all studies using this modality have focused on transfer of TCR from CD8 cytotoxic T lymphocytes (CTLs). The transfer of TCR from innate lymphocytes to other lymphocytes has not been studied. In the current study, innate and adaptive lymphocytes were transfected with the human NKT cell-derived TCRα and β chain mRNA (the Vα24 and Vβ11 TCR chains). When primary T cells transfected with NKT cell-derived TCR were subsequently stimulated with the NKT ligand, α-galactosylceramide (α-GalCer), they secreted IFN-γ in a ligand-specific manner. Furthermore when γδT cells were transfected with NKT cell-derived TCR mRNA, they demonstrated enhanced proliferation, IFN-γ production and antitumor effects after α-GalCer stimulation as compared to parental γδT cells. Importantly, NKT cell TCR-transfected γδT cells responded to both NKT cell and γδT cell ligands, rendering them bi-potential innate lymphocytes. Because NKT cell receptors are unique and universal invariant receptors in humans, the TCR chains do not yield mispaired receptors with endogenous TCR α and β chains after the transfection. The transfection of NKT cell TCR has the potential to be a new approach to tumor immunotherapy in patients with various types of cancer.
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23
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Adams EJ, Gu S, Luoma AM. Human gamma delta T cells: Evolution and ligand recognition. Cell Immunol 2015; 296:31-40. [PMID: 25991474 DOI: 10.1016/j.cellimm.2015.04.008] [Citation(s) in RCA: 151] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Revised: 04/19/2015] [Accepted: 04/24/2015] [Indexed: 01/26/2023]
Abstract
The γδ T cell lineage in humans remains much of an enigma due to the low number of defined antigens, the non-canonical ways in which these cells respond to their environment and difficulty in tracking this population in vivo. In this review, we survey a comparative evolutionary analysis of the primate V, D and J gene segments and contrast these findings with recent progress in defining antigen recognition by different populations of γδ T cells in humans. Signatures of both purifying and diversifying selection at the Vδ and Vγ gene loci are placed into context of Vδ1+ γδ T cell recognition of CD1d presenting different lipids, and Vγ 9Vδ2 T cell modulation by pyrophosphate-based phosphoantigens through the butyrophilins BTN3A. From this comparison, it is clear that co-evolution between γδ TCRs and these ligands is likely occurring, but the diversity inherent in these recombined receptors is an important feature in ligand surveillance.
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Affiliation(s)
- Erin J Adams
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL 60637, USA; Committee on Immunology, University of Chicago, Chicago, IL 60637, USA; Committee on Cancer Biology, University of Chicago, Chicago, IL 60637, USA.
| | - Siyi Gu
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL 60637, USA
| | - Adrienne M Luoma
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL 60637, USA; Committee on Immunology, University of Chicago, Chicago, IL 60637, USA
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24
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Van Acker HH, Anguille S, Van Tendeloo VF, Lion E. Empowering gamma delta T cells with antitumor immunity by dendritic cell-based immunotherapy. Oncoimmunology 2015; 4:e1021538. [PMID: 26405575 PMCID: PMC4570126 DOI: 10.1080/2162402x.2015.1021538] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 02/13/2015] [Accepted: 02/14/2015] [Indexed: 12/16/2022] Open
Abstract
Gamma delta (γδ) T cells are the all-rounders of our immune-system with their major histocompatibility complex-unrestricted cytotoxicity, capacity to secrete immunosti-mulatory cytokines and ability to promote the generation of tumor antigen-specific CD8+ and CD4+ T cell responses. Dendritic cell (DC)-based vaccine therapy has the prospective to harness these unique features of the γδ T cells in the fight against cancer. In this review, we will discuss our current knowledge on DC-mediated γδ T cell activation and related opportunities for tumor immunologists.
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Affiliation(s)
- Heleen H Van Acker
- Laboratory of Experimental Hematology; Tumor Immunology Group (TIGR); Vaccine & Infectious Disease Institute (VAXINFECTIO); Faculty of Medicine and Health Sciences; University of Antwerp ; Antwerp, Belgium
| | - Sébastien Anguille
- Laboratory of Experimental Hematology; Tumor Immunology Group (TIGR); Vaccine & Infectious Disease Institute (VAXINFECTIO); Faculty of Medicine and Health Sciences; University of Antwerp ; Antwerp, Belgium ; Center for Cell Therapy & Regenerative Medicine; Antwerp University Hospital ; Edegem, Belgium
| | - Viggo F Van Tendeloo
- Laboratory of Experimental Hematology; Tumor Immunology Group (TIGR); Vaccine & Infectious Disease Institute (VAXINFECTIO); Faculty of Medicine and Health Sciences; University of Antwerp ; Antwerp, Belgium
| | - Eva Lion
- Laboratory of Experimental Hematology; Tumor Immunology Group (TIGR); Vaccine & Infectious Disease Institute (VAXINFECTIO); Faculty of Medicine and Health Sciences; University of Antwerp ; Antwerp, Belgium ; Center for Cell Therapy & Regenerative Medicine; Antwerp University Hospital ; Edegem, Belgium
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25
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Mao Y, Yin S, Zhang J, Hu Y, Huang B, Cui L, Kang N, He W. A new effect of IL-4 on human γδ T cells: promoting regulatory Vδ1 T cells via IL-10 production and inhibiting function of Vδ2 T cells. Cell Mol Immunol 2015; 13:217-28. [PMID: 25942601 DOI: 10.1038/cmi.2015.07] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 01/14/2015] [Accepted: 01/14/2015] [Indexed: 12/13/2022] Open
Abstract
Interleukin 4 (IL-4) has a variety of immune functions, including helper T-cell (Th-cell) differentiation and innate immune-response processes. However, the impact of IL-4 on gamma delta (γδ) T cells remains unclear. In this study, we investigate the effects of IL-4 on the activation and proliferation of γδ T cells and the balance between variable delta 1 (Vδ1) and Vδ2 T cells in humans. The results show that IL-4 inhibits the activation of γδ T cells in the presence of γδ T-cell receptor (TCR) stimulation in a STAT6-dependent manner. IL-4 promoted the growth of activated γδ T cells and increased the levels of Vδ1 T cells, which in turn inhibited Vδ2 T-cell growth via significant IL-10 secretion. Vδ1 T cells secreted significantly less interferon gamma (IFNγ) and more IL-10 relative to Vδ2. Furthermore, Vδ1 T cells showed relatively low levels of Natural Killer Group 2D (NKG2D) expression in the presence of IL-4, suggesting that Vδ1 T cells weaken the γδ T cell-mediated anti-tumor immune response. For the first time, our findings demonstrate a negative regulatory role of IL-4 in γδ T cell-mediated anti-tumor immunity.
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Affiliation(s)
- Yujia Mao
- Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Shanshan Yin
- Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Jianmin Zhang
- Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China.,State Key Laboratory of Medical Molecular Biology, Beijing, China
| | - Yu Hu
- Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China.,State Key Laboratory of Medical Molecular Biology, Beijing, China
| | - Bo Huang
- Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Lianxian Cui
- Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China.,State Key Laboratory of Medical Molecular Biology, Beijing, China
| | - Ning Kang
- Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China.,State Key Laboratory of Medical Molecular Biology, Beijing, China
| | - Wei He
- Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China.,State Key Laboratory of Medical Molecular Biology, Beijing, China
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26
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Tyler CJ, Doherty DG, Moser B, Eberl M. Human Vγ9/Vδ2 T cells: Innate adaptors of the immune system. Cell Immunol 2015; 296:10-21. [PMID: 25659480 DOI: 10.1016/j.cellimm.2015.01.008] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 11/25/2014] [Accepted: 01/14/2015] [Indexed: 12/11/2022]
Abstract
Unconventional T cells are gaining center stage as important effector and regulatory cells that orchestrate innate and adaptive immune responses. Human Vγ9/Vδ2 T cells are amongst the best understood unconventional T cells, as they are easily accessible in peripheral blood, can readily be expanded and manipulated in vitro, respond to microbial infections in vivo and can be exploited for novel tumor immunotherapies. We here review findings that suggest that Vγ9/Vδ2 T cells, and possibly other unconventional human T cells, play an important role in bridging innate and adaptive immunity by promoting the activation and differentiation of various types of antigen-presenting cells (APCs) and even turning into APCs themselves, and thereby pave the way for antigen-specific effector responses and long-term immunological memory. Although the direct physiological relevance for most of these mechanisms still needs to be demonstrated in vivo, these findings may have implications for novel therapies, diagnostic tests and vaccines.
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Affiliation(s)
- Christopher J Tyler
- Cardiff Institute of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Derek G Doherty
- Department of Immunology, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Bernhard Moser
- Cardiff Institute of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Matthias Eberl
- Cardiff Institute of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom.
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27
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Abstract
The observation that a subset of cancer patients show evidence for spontaneous CD8+ T cell priming against tumor-associated antigens has generated renewed interest in the innate immune pathways that might serve as a bridge to an adaptive immune response to tumors. Manipulation of this endogenous T cell response with therapeutic intent-for example, using blocking antibodies inhibiting PD-1/PD-L1 (programmed death-1/programmed death ligand 1) interactions-is showing impressive clinical results. As such, understanding the innate immune mechanisms that enable this T cell response has important clinical relevance. Defined innate immune interactions in the cancer context include recognition by innate cell populations (NK cells, NKT cells, and γδ T cells) and also by dendritic cells and macrophages in response to damage-associated molecular patterns (DAMPs). Recent evidence has indicated that the major DAMP driving host antitumor immune responses is tumor-derived DNA, sensed by the stimulator of interferon gene (STING) pathway and driving type I IFN production. A deeper knowledge of the clinically relevant innate immune pathways involved in the recognition of tumors is leading toward new therapeutic strategies for cancer treatment.
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28
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Harly C, Peigné CM, Scotet E. Molecules and Mechanisms Implicated in the Peculiar Antigenic Activation Process of Human Vγ9Vδ2 T Cells. Front Immunol 2015; 5:657. [PMID: 25601861 PMCID: PMC4283718 DOI: 10.3389/fimmu.2014.00657] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 12/08/2014] [Indexed: 12/04/2022] Open
Abstract
In human beings, as well as in most non-human primates, the major peripheral γδ T cell subset, which accounts several percent of the whole lymphoid cells pool in adults, carries an heterodimeric TCR composed of Vγ9 and Vδ2 chains. Vγ9Vδ2 T cells are specifically and strongly activated by small organic pyrophosphate molecules termed phosphoantigens (phosphoAg). These low molecular weight compounds are metabolites that are produced by either microbes or endogenously, as intermediates of the mammalian mevalonate pathway, and can accumulate intracellularly during cell stress like transformation or infection. Despite the characterization of numerous natural and synthetic phosphoAg, the mechanism(s) underlying the unique and specific antigenic activation process induced by these compounds remains poorly understood. Activation is both TCR- and cell-to-cell contact-dependent, and results of previous studies have also strongly suggested a key contribution of membrane-associated molecules of primate origin expressed on target cells. The recent identification of B7-related butyrophilin (BTN) molecules CD277/BTN3A, and more precisely their BTN3A1 isoforms, as mandatory molecules in the phosphoAg-induced recognition of target cells by Vγ9Vδ2 T cells opens important opportunities for research and applications in this field. Here, we review the unusual and complex antigenic reactivity of human Vγ9Vδ2 T cells. We highlight the recent advances in our understanding of this process, and propose a model that integrates the type I glycoprotein BTN3A1 and its intracellular B30.2 domain as a physical intermediate implicated in the detection of dysregulated intracellular levels of phosphoAg and the sensing of cell stress by Vγ9Vδ2T cells. A better understanding of this mechanism will help optimize novel immunotherapeutical approaches that utilize the unique functional potential of this major γδ T cell subset.
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Affiliation(s)
- Christelle Harly
- Laboratory of Genome Integrity, Center for Cancer Research, National Cancer Institute , Bethesda, MD , USA ; Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania , Philadelphia, PA , USA
| | - Cassie-Marie Peigné
- Unité Mixte de Recherche 892, Centre de Recherche en Cancérologie Nantes Angers, INSERM , Nantes , France ; University of Nantes , Nantes , France ; Unité Mixte de Recherche 6299, Centre National de la Recherche Scientifique , Nantes , France
| | - Emmanuel Scotet
- Unité Mixte de Recherche 892, Centre de Recherche en Cancérologie Nantes Angers, INSERM , Nantes , France ; University of Nantes , Nantes , France ; Unité Mixte de Recherche 6299, Centre National de la Recherche Scientifique , Nantes , France
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29
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Lafont V, Sanchez F, Laprevotte E, Michaud HA, Gros L, Eliaou JF, Bonnefoy N. Plasticity of γδ T Cells: Impact on the Anti-Tumor Response. Front Immunol 2014; 5:622. [PMID: 25538706 PMCID: PMC4259167 DOI: 10.3389/fimmu.2014.00622] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 11/21/2014] [Indexed: 01/17/2023] Open
Abstract
The tumor immune microenvironment contributes to tumor initiation, progression, and response to therapy. Among the immune cell subsets that play a role in the tumor microenvironment, innate-like T cells that express T cell receptors composed of γ and δ chains (γδ T cells) are of particular interest. γδ T cells can contribute to the immune response against many tumor types (lymphoma, myeloma, melanoma, breast, colon, lung, ovary, and prostate cancer) directly through their cytotoxic activity and indirectly by stimulating or regulating the biological functions of other cell types required for the initiation and establishment of the anti-tumor immune response, such as dendritic cells and cytotoxic CD8+ T cells. However, the notion that tumor-infiltrating γδ T cells are a good prognostic marker in cancer was recently challenged by studies showing that the presence of these cells in the tumor microenvironment was associated with poor prognosis in both breast and colon cancer. These findings suggest that γδ T cells may also display pro-tumor activities. Indeed, breast tumor-infiltrating γδ T cells could exert an immunosuppressive activity by negatively regulating dendritic cell maturation. Furthermore, recent studies demonstrated that signals from the microenvironment, particularly cytokines, can confer some plasticity to γδ T cells and promote their differentiation into γδ T cells with regulatory functions. This review focuses on the current knowledge on the functional plasticity of γδ T cells and its effect on their anti-tumor activities. It also discusses the putative mechanisms underlying γδ T cell expansion, differentiation, and recruitment in the tumor microenvironment.
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Affiliation(s)
- Virginie Lafont
- U896, Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM , Montpellier , France ; Centre Régional de Lutte Contre le Cancer CRLC Val d'Aurelle - Paul Lamarque, Université Montpellier 1 , Montpellier , France
| | - Françoise Sanchez
- U896, Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM , Montpellier , France ; Centre Régional de Lutte Contre le Cancer CRLC Val d'Aurelle - Paul Lamarque, Université Montpellier 1 , Montpellier , France
| | - Emilie Laprevotte
- U896, Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM , Montpellier , France ; Centre Régional de Lutte Contre le Cancer CRLC Val d'Aurelle - Paul Lamarque, Université Montpellier 1 , Montpellier , France
| | - Henri-Alexandre Michaud
- U896, Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM , Montpellier , France ; Centre Régional de Lutte Contre le Cancer CRLC Val d'Aurelle - Paul Lamarque, Université Montpellier 1 , Montpellier , France
| | - Laurent Gros
- U896, Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM , Montpellier , France ; Centre Régional de Lutte Contre le Cancer CRLC Val d'Aurelle - Paul Lamarque, Université Montpellier 1 , Montpellier , France
| | - Jean-François Eliaou
- U896, Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM , Montpellier , France ; Centre Régional de Lutte Contre le Cancer CRLC Val d'Aurelle - Paul Lamarque, Université Montpellier 1 , Montpellier , France ; Département d'Immunologie, Centre Hospitalier Régional Universitaire de Montpellier et Faculté de Médecine, Université Montpellier 1 , Montpellier , France
| | - Nathalie Bonnefoy
- U896, Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM , Montpellier , France ; Centre Régional de Lutte Contre le Cancer CRLC Val d'Aurelle - Paul Lamarque, Université Montpellier 1 , Montpellier , France
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30
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Correia DV, Lopes A, Silva-Santos B. Tumor cell recognition by γδ T lymphocytes: T-cell receptor vs. NK-cell receptors. Oncoimmunology 2014; 2:e22892. [PMID: 23483102 PMCID: PMC3583939 DOI: 10.4161/onci.22892] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The dissection of the molecular mechanisms underlying tumor-cell recognition by γδ T-cells is crucial to improve their performance in cancer immunotherapy. Here, we discuss the controversy around the relative contributions of the γδ T-cell receptor (TCR) and natural killer receptors (NKRs) to tumor-cell targeting by γδ T cells.
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Affiliation(s)
- Daniel V Correia
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa; Lisbon, Portugal
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31
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Dave M, Papadakis KA, Faubion WA. Immunology of inflammatory bowel disease and molecular targets for biologics. Gastroenterol Clin North Am 2014; 43:405-24. [PMID: 25110250 PMCID: PMC4480636 DOI: 10.1016/j.gtc.2014.05.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Inflammatory bowel disease (IBD) is an immune-mediated disease and involves a complex interplay of host genetics and environmental influences. Recent advances in the field, including data from genome-wide association studies and microbiome analysis, have started to unravel the complex interaction between host genetics and environmental influences in the pathogenesis of IBD. A drawback of current clinical trials is inadequate or lack of immune phenotyping of patients. However, recent advances in high-throughput technologies provide an opportunity to monitor the dynamic and complex immune system, which may to lead to a more personalized treatment approach in IBD.
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32
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Gustafsson K, Anderson J, Fisher JPH, Yan M. Regeneration of stalled immune responses to transformed and infected cells using γδ T cells. Drug Discov Today 2014; 19:787-793. [PMID: 24681060 PMCID: PMC4437461 DOI: 10.1016/j.drudis.2014.03.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 03/14/2014] [Accepted: 03/20/2014] [Indexed: 12/26/2022]
Abstract
Manipulation of the human immune system is becoming more of a therapeutic focus as a treatment option or complement. Prominent examples are the increasing use of monoclonal antibodies in combating malignant tumours, and the numerous adoptive immunotherapy trials underway. One important aspect of any use of the human immune system in this regard is to harness the power of professional antigen-presenting cells (pAPC), that is, dendritic cells (DC), to direct immune responses. Here, we review how recent findings regarding the biology of γδT cells have revealed that they, surprisingly, could serve as convenient tools for this purpose, in that they combine innate cytotoxic cell and pAPC functions in one cell type, with potential benefits in cancer immunotherapy and infectious disease.
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Affiliation(s)
- Kenth Gustafsson
- Molecular Immunology Unit, UCL Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK
| | - John Anderson
- Molecular Haematology and Cancer Biology Unit, UCL Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK
| | - Jonathan P H Fisher
- Molecular Haematology and Cancer Biology Unit, UCL Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK
| | - Mengyong Yan
- Molecular Immunology Unit, UCL Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK
- Molecular Haematology and Cancer Biology Unit, UCL Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK
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Marcus A, Eshhar Z. Allogeneic chimeric antigen receptor-modified cells for adoptive cell therapy of cancer. Expert Opin Biol Ther 2014; 14:947-54. [PMID: 24661086 DOI: 10.1517/14712598.2014.900540] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Chimeric antigen (or antibody) receptors (CAR) are fusion proteins typically combining an antibody-derived targeting fragment with signaling domains capable of activating immune cells. Recent clinical trials have shown the tremendous potential of adoptive cell transfer (ACT) of autologous T cells engineered to express a CD19-specific CAR targeting B-cell malignancies. Building on this approach, ACT therapies employing allogeneic CAR-expressing cytotoxic cells are now being explored. AREAS COVERED The basic principles of CAR-ACT are introduced. The potential benefits as well as problems of using allogeneic CAR-modified cells against tumor antigens are discussed. Various approaches to allogeneic CAR therapy are presented, including donor leukocyte infusion, CAR-redirected γδ T cells and natural killer cells, strategies to avoid graft-versus-host disease, modulation of lymphocyte migration, and exploitation of graft-versus-host reactivity. EXPERT OPINION CAR-modified allogeneic cells have the potential to act as universal effector cells, which can be administered to any patient regardless of MHC type. Such universal effector cells could be used as an 'off-the-shelf' cell-mediated treatment for cancer.
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Affiliation(s)
- Assaf Marcus
- University of California, Department of Molecular and Cell Biology, Cancer Research Laboratory Berkeley , Berkeley, CA 94720-3200 , USA
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Severa M, Islam SA, Waggoner SN, Jiang Z, Kim ND, Ryan G, Kurt-Jones E, Charo I, Caffrey DR, Boyartchuk VL, Luster AD, Fitzgerald KA. The transcriptional repressor BLIMP1 curbs host defenses by suppressing expression of the chemokine CCL8. THE JOURNAL OF IMMUNOLOGY 2014; 192:2291-304. [PMID: 24477914 DOI: 10.4049/jimmunol.1301799] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The transcriptional repressor B lymphocyte-induced maturation protein 1 (BLIMP1) is a master regulator of B and T cell differentiation. To examine the role of BLIMP1 in innate immunity, we used a conditional knockout (CKO) of Blimp1 in myeloid cells and found that Blimp1 CKO mice were protected from lethal infection induced by Listeria monocytogenes. Transcriptome analysis of Blimp1 CKO macrophages identified the murine chemokine (C-C motif) ligand 8, CCL8, as a direct target of Blimp1-mediated transcriptional repression in these cells. BLIMP1-deficient macrophages expressed elevated levels of Ccl8, and consequently Blimp1 CKO mice had higher levels of circulating CCL8, resulting in increased neutrophils in the peripheral blood, promoting a more aggressive antibacterial response. Mice lacking the Ccl8 gene were more susceptible to L. monocytogenes infection than were wild-type mice. Although CCL8 failed to recruit neutrophils directly, it was chemotactic for γ/δ T cells, and CCL8-responsive γ/δ T cells were enriched for IL-17F. Finally, CCL8-mediated enhanced clearance of L. monocytogenes was dependent on γ/δ T cells. Collectively, these data reveal an important role for BLIMP1 in modulating host defenses by suppressing expression of the chemokine CCL8.
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Affiliation(s)
- Martina Severa
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605
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Li W, Okuda A, Yamamoto H, Yamanishi K, Terada N, Yamanishi H, Tanaka Y, Okamura H. Regulation of development of CD56 bright CD11c + NK-like cells with helper function by IL-18. PLoS One 2013; 8:e82586. [PMID: 24376549 PMCID: PMC3869690 DOI: 10.1371/journal.pone.0082586] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 10/25/2013] [Indexed: 11/19/2022] Open
Abstract
Human γδ T cells augment host defense against tumors and infections, and might have a therapeutic potential in immunotherapy. However, mechanism of γδ T cell proliferation is unclear, and therefore it is difficult to prepare sufficient numbers of γδ T cells for clinical immunotherapy. Recently, natural killer (NK)-like CD56(bright)CD11c(+) cells were shown to promote the proliferation of γδ T cells in an IL-18-dependent manner. In this study, we demonstrated that the NK-like CD56(bright)CD11c(+) cells could directly interact with γδ T cells to promote their sustained expansion, while conventional dendritic cells (DCs), IFN-α-induced DCs, plasmacytoid DCs or monocytes did not. We also examined the cellular mechanism underlying the regulation of CD56(bright)CD11c(+) cells. CD14(+) monocytes pre-incubated with IL-2/IL-18 formed intensive interactions with CD56(int)CD11c(+) cells to promote their differentiation to CD56(bright)CD11c(+) cells with helper function. The development of CD56(bright)CD11c(+) cells was suppressed in an IFN-α dependent manner. These results indicate that CD14(+) monocytes pretreated with IL-2/IL-18, but neither DCs nor monocytes, play a determining role on the development and proliferation of CD56(bright)CD11c(+) cells, which in turn modulate the expansion of γδ T cells. CD56(bright)CD11c(+) NK-like cells may be a novel target for immunotherapy utilizing γδ T cells, by overcoming the limitation of γδ T cells proliferation.
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MESH Headings
- Adult
- CD11c Antigen/metabolism
- CD56 Antigen/metabolism
- Cell Communication/drug effects
- Dendritic Cells/cytology
- Dendritic Cells/drug effects
- Dendritic Cells/immunology
- Humans
- Interferon-alpha/pharmacology
- Interleukin-18/pharmacology
- Killer Cells, Natural/cytology
- Killer Cells, Natural/drug effects
- Killer Cells, Natural/metabolism
- Lipopolysaccharide Receptors/metabolism
- Models, Immunological
- Monocytes/cytology
- Monocytes/drug effects
- Phenotype
- Receptors, Antigen, T-Cell, gamma-delta/metabolism
- T-Lymphocytes, Helper-Inducer/cytology
- T-Lymphocytes, Helper-Inducer/drug effects
- T-Lymphocytes, Helper-Inducer/immunology
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Affiliation(s)
- Wen Li
- Laboratory of Tumor Immunology and Cell Therapy, Hyogo College of Medicine, Hyogo, Japan
| | - Akico Okuda
- Laboratory of Tumor Immunology and Cell Therapy, Hyogo College of Medicine, Hyogo, Japan
- Department of Pathology, Hyogo College of Medicine, Hyogo, Japan
| | - Hideyuki Yamamoto
- Laboratory of Tumor Immunology and Cell Therapy, Hyogo College of Medicine, Hyogo, Japan
| | - Kyosuke Yamanishi
- Laboratory of Tumor Immunology and Cell Therapy, Hyogo College of Medicine, Hyogo, Japan
- Department of Neuropsychiatry, Hyogo College of Medicine, Hyogo, Japan
| | - Nobuyuki Terada
- Department of Pathology, Hyogo College of Medicine, Hyogo, Japan
| | - Hiromichi Yamanishi
- Hirakata General Hospital for Developmental Disorders, Hirakata, Osaka, Japan
| | - Yoshimasa Tanaka
- Center for Innovation in Immunoregulative Technology and Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Haruki Okamura
- Laboratory of Tumor Immunology and Cell Therapy, Hyogo College of Medicine, Hyogo, Japan
- * E-mail:
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Norell H, Moretta A, Silva-Santos B, Moretta L. At the Bench: Preclinical rationale for exploiting NK cells and γδ T lymphocytes for the treatment of high-risk leukemias. J Leukoc Biol 2013; 94:1123-39. [PMID: 24108703 DOI: 10.1189/jlb.0613312] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
NK cells and γδ T lymphocytes display potent cytolytic activity against leukemias and CMV-infected cells and are thus, promising immune effector cells in the context of allo-HSCT. NK cells express HLA class I-specific inhibitory receptors and preferentially kill HLA class I(low) tumors or virus-infected cells. Killing occurs upon engagement of activating NKRs with ligands that are up-regulated on tumors and infected cells. A similar activating receptor/ligand interaction strategy is used by γδ T cells, which in addition, use their TCRs for recognition of phosphorylated antigens and still largely undefined ligands on tumor cells. In the haploidentical allo-HSCT setting, alloreactive NK cells, derived from donor HSCs, can exert potent antileukemia activity and kill residual patient DCs and T cells, thus preventing GvHD and graft rejection. However, generation of KIR(+) alloreactive NK cells from HSCs requires many weeks, during which leukemia relapses, and life-threatening infections may occur. Importantly, mature NK cells and γδ T cells can control certain infectious agents efficiently, in particular, limit CMV reactivation, and infusion of such donor cells at the time of HSCT has been implemented. Development of novel, cell-based immunotherapies, allowing improved trafficking and better targeting, will endow NK cells and γδ T lymphocytes with enhanced anti-tumor activity, also making them key reagents for therapies against solid tumors. The clinical aspects of using NK cells and γδ T lymphocytes against hematological malignancies, including the allo-HSCT context, are reviewed in the related side-by-side paper by Locatelli and colleagues [1].
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Roux A, Mourin G, Larsen M, Fastenackels S, Urrutia A, Gorochov G, Autran B, Donner C, Sidi D, Sibony-Prat J, Marchant A, Stern M, Sauce D, Appay V. Differential impact of age and cytomegalovirus infection on the γδ T cell compartment. THE JOURNAL OF IMMUNOLOGY 2013; 191:1300-6. [PMID: 23817410 DOI: 10.4049/jimmunol.1202940] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
γδ T cells represent a subset of unconventional T lymphocytes that are known for their reactivity against different pathogens and considered as intermediate mediators between adaptive and innate immunity. We provide in this paper further insights underlying the changes that affect the γδ T cell compartment with advanced age in humans. We show that both aging and CMV infection impact independently on the γδ T cell compartment. Most γδ T cells are significantly affected by age and present a decreased frequency in the elderly. The decline of the γδ T cell pool appears to be independent from the activity of the thymus, arguing in favor of an extrathymic site of γδ T cell production in humans. Of note, CMV infection, which is directly associated with the activation of the pool of Vδ2(-) γδ T cells, promotes nonetheless the inflation of this compartment throughout life. CMV seropositivity accentuates further the accumulation of highly differentiated lymphocytes in Vδ2(-) γδ T cell subsets with time, in contrast to Vδ2(+) γδ T cells, which maintain a less differentiated phenotype. This is similar to the effect of CMV on αβ T cells and suggests that γδ T cells may vary in differentiation phenotype according to distinct stimuli or pathogens.
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Affiliation(s)
- Antoine Roux
- INSERM Unité Mixte de Recherche S945, Infections and Immunity, Université Pierre et Marie Curie-Paris 6, Hôpital Pitié-Salpêtrière, 75013 Paris, France
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Lavoué V, Thédrez A, Levêque J, Foucher F, Henno S, Jauffret V, Belaud-Rotureau MA, Catros V, Cabillic F. Immunity of human epithelial ovarian carcinoma: the paradigm of immune suppression in cancer. J Transl Med 2013; 11:147. [PMID: 23763830 PMCID: PMC3683338 DOI: 10.1186/1479-5876-11-147] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 05/27/2013] [Indexed: 12/21/2022] Open
Abstract
Epithelial ovarian cancer (EOC) is a significant cause of cancer-related mortality in women, and there has been no substantial decrease in the death rates due to EOC in the last three decades. Thus, basic knowledge regarding ovarian tumor cell biology is urgently needed to allow the development of innovative treatments for EOC. Traditionally, EOC has not been considered an immunogenic tumor, but there is evidence of an immune response to EOC in patients. Clinical data demonstrate that an antitumor immune response and immune evasion mechanisms are correlated with a better and lower survival, respectively, providing evidence for the immunoediting hypothesis in EOC. This review focuses on the immune response and immune suppression in EOC. The immunological roles of chemotherapy and surgery in EOC are also described. Finally, we detail pilot data supporting the efficiency of immunotherapy in the treatment of EOC and the emerging concept that immunomodulation aimed at counteracting the immunosuppressive microenvironment must be associated with immunotherapy strategies.
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Affiliation(s)
- Vincent Lavoué
- Lady Davis Institut, Jewish General Hospital, McGill University, Montreal QC H3T 1E2, Canada.
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Lee SJ, Kim YH, Hwang SH, Kim YI, Han IS, Vinay DS, Kwon BS. 4-1BB signal stimulates the activation, expansion, and effector functions of γδ T cells in mice and humans. Eur J Immunol 2013; 43:1839-48. [DOI: 10.1002/eji.201242842] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 03/13/2013] [Accepted: 04/26/2013] [Indexed: 01/07/2023]
Affiliation(s)
| | - Young H. Kim
- Immune & Cell Therapy Branch; National Cancer Center; Ilsan; Gyeonggi-do; Korea
| | - Sun H. Hwang
- Immune & Cell Therapy Branch; National Cancer Center; Ilsan; Gyeonggi-do; Korea
| | - Yu. I. Kim
- Immune & Cell Therapy Branch; National Cancer Center; Ilsan; Gyeonggi-do; Korea
| | - In S. Han
- Department of Biological Sciences; University of Ulsan; Ulsan; Korea
| | - Dass S. Vinay
- Section of Clinical Immunology; Department of Medicine, Tulane University Health Sciences Center; New Orleans; LA; USA
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40
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Thedrez A, Lavoué V, Dessarthe B, Daniel P, Henno S, Jaffre I, Levêque J, Catros V, Cabillic F. A quantitative deficiency in peripheral blood Vγ9Vδ2 cells is a negative prognostic biomarker in ovarian cancer patients. PLoS One 2013; 8:e63322. [PMID: 23717410 PMCID: PMC3662688 DOI: 10.1371/journal.pone.0063322] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Accepted: 04/02/2013] [Indexed: 11/18/2022] Open
Abstract
Vγ9Vδ2 cells are cytotoxic T cells that are able to recognize epithelial ovarian carcinoma (EOC) cells. Therefore, Vγ9Vδ2 cell-based adoptive transfer is an attractive therapy for EOC. However, the inefficient ex vivo expansion after specific stimulation of Vγ9Vδ2 cells from some patients and the relationships between Vγ9Vδ2 cells and clinical course of EOC are issues that remain to be clarified. Herein, peripheral blood mononuclear cells (PBMCs) from 60 EOC patients were stimulated with bromohydrin pyrophosphate (BrHPP) or zoledronate, which are specific agonists of Vγ9Vδ2 cells. The compounds differed in their efficacies to induce ex vivo Vγ9Vδ2 PBMC expansion, but 16/60 samples remained inefficiently expanded with both stimuli. Interestingly, the Vγ9Vδ2 cells in these low-responding PBMCs displayed before expansion (ex vivo PBMCs) an altered production of the pro-inflammatory cytokines IFN-γ and TNF-α, a decreased naive fraction and a reduced frequency. No evidence of an involvement of CD4+CD25+Foxp3+ regulatory cells was observed. Importantly, our data also demonstrate that a Vγ9Vδ2 cell frequency of 0.35% or less in EOC PBMCs could be used to predict low responses to both BrHPP and zoledronate. Moreover, our data highlight that such a deficiency is not correlated with advanced EOC stages but is associated with more refractory states to platinum-based chemotherapy and is an independent predictor of shorter disease-free survival after treatment. These results are the first to suggest a potential contribution of Vγ9Vδ2 cells to the anti-tumor effects of chemotherapeutic agents and they strengthen interest in strategies that might increase Vγ9Vδ2 cells in cancer patients.
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MESH Headings
- Aged
- Biomarkers, Tumor/blood
- Biomarkers, Tumor/immunology
- CD3 Complex/metabolism
- Carcinoma, Ovarian Epithelial
- Cell Proliferation/drug effects
- Cells, Cultured
- Combined Modality Therapy
- Diphosphates/pharmacology
- Diphosphonates/pharmacology
- Disease-Free Survival
- Drug Resistance, Neoplasm
- Humans
- Imidazoles/pharmacology
- Interferon-gamma/metabolism
- Middle Aged
- Neoplasms, Glandular and Epithelial/blood
- Neoplasms, Glandular and Epithelial/immunology
- Neoplasms, Glandular and Epithelial/mortality
- Neoplasms, Glandular and Epithelial/therapy
- Ovarian Neoplasms/blood
- Ovarian Neoplasms/immunology
- Ovarian Neoplasms/mortality
- Ovarian Neoplasms/therapy
- Prognosis
- Survival Analysis
- T-Lymphocytes, Cytotoxic/drug effects
- T-Lymphocytes, Cytotoxic/physiology
- T-Lymphocytes, Regulatory/metabolism
- Treatment Outcome
- Tumor Necrosis Factor-alpha/metabolism
- Zoledronic Acid
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Affiliation(s)
- Aurélie Thedrez
- Unité Mixe de Recherche Institut National de la Santé Et de la Recherche Médicale 991, Université de Rennes 1, Rennes, France.
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41
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Lança T, Costa MF, Gonçalves-Sousa N, Rei M, Grosso AR, Penido C, Silva-Santos B. Protective Role of the Inflammatory CCR2/CCL2 Chemokine Pathway through Recruitment of Type 1 Cytotoxic γδ T Lymphocytes to Tumor Beds. THE JOURNAL OF IMMUNOLOGY 2013; 190:6673-80. [DOI: 10.4049/jimmunol.1300434] [Citation(s) in RCA: 115] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Goto H, Matsuda K, Srikoon P, Kariya R, Hattori S, Taura M, Katano H, Okada S. Potent antitumor activity of zoledronic acid-induced Vγ9Vδ2 T cells against primary effusion lymphoma. Cancer Lett 2013; 331:174-82. [DOI: 10.1016/j.canlet.2012.12.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 12/10/2012] [Accepted: 12/25/2012] [Indexed: 11/29/2022]
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43
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Bajpai UD, Swainson LA, Mold JE, Graf JD, Imboden JB, McCune JM. A functional variant in FCRL3 is associated with higher Fc receptor-like 3 expression on T cell subsets and rheumatoid arthritis disease activity. ACTA ACUST UNITED AC 2012; 64:2451-9. [PMID: 22392608 DOI: 10.1002/art.34457] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE CD4+FoxP3+ Treg cells suppress effector T cells and prevent autoimmune disease. Treg cell function is deficient in active rheumatoid arthritis (RA), a loss which may play a role in the pathogenesis of this disease. We previously showed that a single-nucleotide polymorphism in the FCRL3 gene led to higher expression of Fc receptor-like 3 (FcRL3) on Treg cells and that FcRL3+ Treg cells are functionally deficient in comparison to FcRL3- Treg cells. This study was undertaken to investigate the potential role of FcRL3 in RA. METHODS A cross-sectional study was performed to evaluate the FCRL3 -169 genotype and FcRL3 expression on T cell subsets, including Treg cells, in peripheral blood samples from 51 patients with RA enrolled in the University of California, San Francisco (UCSF) RA Cohort. Clinical data were obtained from the UCSF RA Cohort database. RESULTS Patients with the FCRL3 -169C allele (genotype C/C or C/T) expressed higher levels of FcRL3 on Treg cells, and on CD8+ and γ/δ T cells, in comparison to RA patients with the T/T genotype. Higher FcRL3 expression on these T cell subpopulations correlated with RA disease activity in patients harboring the FCRL3 -169C allele. Furthermore, FcRL3 expression on Treg cells was higher in patients with erosive RA, and the FCRL3 -169C allele was overrepresented in patients with erosive RA. CONCLUSION Our findings indicate that FcRL3 expression, which is strongly associated with the presence of the FCRL3 -169C allele, may serve as a biomarker for RA disease activity.
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MESH Headings
- Adult
- Alleles
- Arthritis, Rheumatoid/genetics
- Arthritis, Rheumatoid/metabolism
- Arthritis, Rheumatoid/pathology
- B-Lymphocytes/metabolism
- B-Lymphocytes/pathology
- Biomarkers/metabolism
- CD8 Antigens/metabolism
- Cell Count
- Cross-Sectional Studies
- Female
- Genotype
- Humans
- Male
- Middle Aged
- Polymorphism, Single Nucleotide/genetics
- Receptors, Antigen, T-Cell, gamma-delta/metabolism
- Receptors, Immunologic/genetics
- Receptors, Immunologic/metabolism
- Severity of Illness Index
- T-Lymphocyte Subsets/metabolism
- T-Lymphocyte Subsets/pathology
- T-Lymphocytes, Regulatory/metabolism
- T-Lymphocytes, Regulatory/pathology
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Chen ZW. Multifunctional immune responses of HMBPP-specific Vγ2Vδ2 T cells in M. tuberculosis and other infections. Cell Mol Immunol 2012; 10:58-64. [PMID: 23147720 DOI: 10.1038/cmi.2012.46] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Vγ2Vδ2 T (also known as Vγ9Vδ2 T) cells exist only in primates, and in humans represent a major γδ T-cell sub-population in the total population of circulating γδ T cells. Results from recent studies suggest that while (E)-4-hydroxy-3-methyl-but-2-enyl pyrophosphate (HMBPP) phosphoantigen from Mycobacterium tuberculosis (Mtb) and other microbes activates and expands primate Vγ2Vδ2 T cells, the Vγ2Vδ2 T-cell receptor (TCR) recognizes and binds to HMBPP on antigen-presenting cells (APC). In response to HMBPP stimulus, Vγ2Vδ2 TCRs array to form signaling-related nanoclusters or nanodomains during the activation of Vγ2Vδ2 T cells. Primary infections with HMBPP-producing pathogens drive the evolution of multieffector functional responses in Vγ2Vδ2 T cells, although Vγ2Vδ2 T cells display different patterns of responses during the acute and chronic phases of Mtb infection and in other infections. Expanded Vγ2Vδ2 T cells in primary Mtb infection can exhibit a broader TCR repertoire and a greater clonal response than previously assumed, with different distribution patterns of Vγ2Vδ2 T-cell clones in lymphoid and non-lymphoid compartments. Emerging in vivo data suggest that HMBPP activation of Vγ2Vδ2 T cells appears to impact other immune cells during infection.
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Affiliation(s)
- Zheng W Chen
- Department of Microbiology and Immunology, Center for Primate Biomedical Research, University of Illinois College of Medicine Chicago, Chicago, IL 60612, USA.
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45
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Dysfunctional Vγ9Vδ2 T cells are negative prognosticators and markers of dysregulated mevalonate pathway activity in chronic lymphocytic leukemia cells. Blood 2012; 120:3271-9. [DOI: 10.1182/blood-2012-03-417519] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Abstract
The role of Vγ9Vδ2 T cells in chronic lymphocytic leukemia (CLL) is unexplored, although these cells have a natural inclination to react against B-cell malignancies. Proliferation induced by zoledronic acid was used as a surrogate of γδ TCR-dependent stimulation to functionally interrogate Vγ9Vδ2 T cells in 106 untreated CLL patients. This assay permitted the identification of responder and low-responder (LR) patients. The LR status was associated with greater baseline counts of Vγ9Vδ2 T cells and to the expansion of the effector memory and terminally differentiated effector memory subsets. The tumor immunoglobulin heavy chain variable region was more frequently unmutated in CLL cells of LR patients, and the mevalonate pathway, which generates Vγ9Vδ2 TCR ligands, was more active in unmutated CLL cells. In addition, greater numbers of circulating regulatory T cells were detected in LR patients. In multivariate analysis, the LR condition was an independent predictor of shorter time-to-first treatment. Accordingly, the time-to-first treatment was significantly shorter in patients with greater baseline numbers of total Vγ9Vδ2 T cells and effector memory and terminally differentiated effector memory subpopulations. These results unveil a clinically relevant in vivo relationship between the mevalonate pathway activity of CLL cells and dys-functional Vγ9Vδ2 T cells.
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46
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Braza MS, Klein B. Anti-tumour immunotherapy with Vγ9Vδ2 T lymphocytes: from the bench to the bedside. Br J Haematol 2012; 160:123-32. [PMID: 23061882 DOI: 10.1111/bjh.12090] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Gamma delta (γδ) Τ cells are non-conventional T lymphocyte effectors that can interact with and eradicate tumour cells. Several data demonstrate that these T cells, which are implicated in the first line of defence against pathogens, have anti-tumour activity against many cancers and suggest that γδ Τ cell-mediated immunotherapy is feasible and might induce objective tumour responses. Due to the importance of γδ Τ lymphocytes in the induction and control of immunity, a complete understanding of their biology is crucial for the development of a potent cancer immunotherapy. This review discusses recent advances in γδ Τ basic research and data from clinical trials on the use of γδ Τ cells in the treatment of different cancers. It analyses how this knowledge might be applied to develop new strategies for the clinical manipulation and the potentiation of γδ Τ lymphocyte activity in cancer immunotherapy.
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47
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Wang L, Kang N, Zhou J, Guo Y, Zhang X, Cui L, Ba D, He W. Downregulation of CD94/NKG2A inhibitory receptor on decreased γδ T cells in patients with systemic lupus erythematosus. Scand J Immunol 2012; 76:62-9. [PMID: 22486170 DOI: 10.1111/j.1365-3083.2012.02705.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
γδ T cells are characterized by recognizing conserved endogenous and stress-induced antigens without antigen presentation. It has been show that γδ T cells play an important role in anti-tumour/microbe responses, but their function in autoimmune diseases is yet not clear. Here, we reported the quantity and phenotype of peripheral blood γδ T cells from systemic lupus erythematosus (SLE). Both the percentages of γδ T cells in peripheral blood and among CD3(+) T cells of patients with SLE were significantly decreased, regardless of disease activity. However, activating marker CD69 and HLA-DR was upregulated, while inhibiting receptor CD94/NKG2A was downregulated in γδ T cells of patients with SLE. The expression of CD69 is negatively correlated with the quantity of γδ T cells. Moreover, the expression of CD94/NKG2A remained low even with antigen stimulation on those γδ T cells. Our results suggested that the low expression level of CD94/NKG2A upon γδ T cell activation might lead to the over-activation of γδ T cells in patients with SLE. These findings will be useful in elucidating the roles of γδ T cells in SLE pathogenesis.
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Affiliation(s)
- L Wang
- Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, China
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48
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Type I interferon induction during influenza virus infection increases susceptibility to secondary Streptococcus pneumoniae infection by negative regulation of γδ T cells. J Virol 2012; 86:12304-12. [PMID: 22951826 DOI: 10.1128/jvi.01269-12] [Citation(s) in RCA: 155] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The majority of deaths following influenza virus infection result from secondary bacterial superinfection, most commonly caused by Streptococcus pneumoniae. Several models have been proposed to explain how primary respiratory viral infections exacerbate secondary bacterial disease, but the mechanistic explanations have been contradictory. In this study, mice were infected with S. pneumoniae at different days after primary influenza A (X31) virus infection. Our findings show that the induction of type I interferons (IFNs) during a primary nonlethal influenza virus infection is sufficient to promote a deadly S. pneumoniae secondary infection. Moreover, mice deficient in type I interferon receptor (IFNAR knockout [KO] mice) effectively cleared the secondary bacterial infection from their lungs, increased the recruitment of neutrophils, and demonstrated an enhanced innate expression of interleukin-17 (IL-17) relative to wild-type (WT) mice. Lung γδ T cells were responsible for almost all IL-17 production, and their function is compromised during secondary S. pneumoniae infection of WT but not IFNAR KO mice. Adoptive transfer of γδ T cells from IFNAR KO mice reduced the susceptibility to secondary S. pneumoniae infection in the lung of WT mice. Altogether, our study highlights the importance of type I interferon as a key master regulator that is exploited by opportunistic pathogens such as S. pneumoniae. Our findings may be utilized to design effective preventive and therapeutic strategies that may be beneficial for coinfected patients during influenza epidemics.
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Manohar M, Hirsh MI, Chen Y, Woehrle T, Karande AA, Junger WG. ATP release and autocrine signaling through P2X4 receptors regulate γδ T cell activation. J Leukoc Biol 2012; 92:787-94. [PMID: 22753954 DOI: 10.1189/jlb.0312121] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Purinergic signaling plays a key role in a variety of physiological functions, including regulation of immune responses. Conventional αβ T cells release ATP upon TCR cross-linking; ATP binds to purinergic receptors expressed by these cells and triggers T cell activation in an autocrine and paracrine manner. Here, we studied whether similar purinergic signaling pathways also operate in the "unconventional" γδ T lymphocytes. We observed that γδ T cells purified from peripheral human blood rapidly release ATP upon in vitro stimulation with anti-CD3/CD28-coated beads or IPP. Pretreatment of γδ T cells with (10)panx-1, CBX, or Bf A reversed the stimulation-induced increase in extracellular ATP concentration, indicating that panx-1, connexin hemichannels, and vesicular exocytosis contribute to the controlled release of cellular ATP. Blockade of ATP release with (10)panx-1 inhibited Ca(2+) signaling in response to TCR stimulation. qPCR revealed that γδ T cells predominantly express purinergic receptor subtypes A2a, P2X1, P2X4, P2X7, and P2Y11. We found that pharmacological inhibition of P2X4 receptors with TNP-ATP inhibited transcriptional up-regulation of TNF-α and IFN-γ in γδ T cells stimulated with anti-CD3/CD28-coated beads or IPP. Our data thus indicate that purinergic signaling via P2X4 receptors plays an important role in orchestrating the functional response of circulating human γδ T cells.
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Affiliation(s)
- Monali Manohar
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
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Dai Y, Chen H, Mo C, Cui L, He W. Ectopically expressed human tumor biomarker MutS homologue 2 is a novel endogenous ligand that is recognized by human γδ T cells to induce innate anti-tumor/virus immunity. J Biol Chem 2012; 287:16812-9. [PMID: 22433851 DOI: 10.1074/jbc.m111.327650] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Human (h) MutS homologue 2, a nuclear protein, is a critical element of the DNA mismatch repair system. Our previous studies suggest that hMSH2 might be a protein ligand for TCRγδ. Here, we show that hMSH2 is ectopically expressed on a large panel of epithelial tumor cells. We found that hMSH2 interacts with both TCRγδ and NKG2D and contributes to Vδ2 T cell-mediated cytolysis of tumor cells. Moreover, recombinant human MSH2 protein stimulates the proliferation and IFN-γ secretion of Vδ2 T cells in vitro. Finally, hMSH2 expression is induced on the cell surface of Epstein-Barr virus-transformed lymphoblastoid cell lines, and the induction increases the sensitivity of these lymphoblastoid cell lines to γδ T cell-mediated cytolysis. Our data suggest that hMSH2 functions as a tumor-associated or virus infection-related antigen recognized by both Vδ2 TCR and NKG2D, and it plays a role in eliciting the immune responses of γδ T cells against tumor- and virus-infected cells. The recognition of ectopic surface-expressing endogenous antigen by TCRγδ and NKG2D may be an important mechanism of innate immune response to carcinogenesis and viral infection.
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Affiliation(s)
- Yumei Dai
- Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Peking Union Medical College, Beijing 100005, China
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