1
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Xu W, Ye J, Cao Z, Zhao Y, Zhu Y, Li L. Glucocorticoids in lung cancer: Navigating the balance between immunosuppression and therapeutic efficacy. Heliyon 2024; 10:e32357. [PMID: 39022002 PMCID: PMC11252876 DOI: 10.1016/j.heliyon.2024.e32357] [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] [Received: 03/22/2024] [Revised: 06/03/2024] [Accepted: 06/03/2024] [Indexed: 07/20/2024] Open
Abstract
Glucocorticoids (GCs), a class of hormones secreted by the adrenal glands, are released into the bloodstream to maintain homeostasis and modulate responses to various stressors. These hormones function by binding to the widely expressed GC receptor (GR), thereby regulating a wide range of pathophysiological processes, especially in metabolism and immunity. The role of GCs in the tumor immune microenvironment (TIME) of lung cancer (LC) has been a focal point of research. As immunosuppressive agents, GCs exert a crucial impact on the occurrence, progression, and treatment of LC. In the TIME of LC, GCs act as a constantly swinging pendulum, simultaneously offering tumor-suppressive properties while diminishing the efficacy of immune-based therapies. The present study reviews the role and mechanisms of GCs in the TIME of LC.
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Affiliation(s)
| | | | - Zhendong Cao
- Department of Respiration, The Second Affiliated Hospital of Nanjing University of Traditional Chinese Medicine (Jiangsu Second Hospital of Traditional Chinese Medicine), Nanjing, Jiangsu, 210017, China
| | - Yupei Zhao
- Department of Respiration, The Second Affiliated Hospital of Nanjing University of Traditional Chinese Medicine (Jiangsu Second Hospital of Traditional Chinese Medicine), Nanjing, Jiangsu, 210017, China
| | - Yimin Zhu
- Department of Respiration, The Second Affiliated Hospital of Nanjing University of Traditional Chinese Medicine (Jiangsu Second Hospital of Traditional Chinese Medicine), Nanjing, Jiangsu, 210017, China
| | - Lei Li
- Department of Respiration, The Second Affiliated Hospital of Nanjing University of Traditional Chinese Medicine (Jiangsu Second Hospital of Traditional Chinese Medicine), Nanjing, Jiangsu, 210017, China
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2
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Xu L, Chen F, Fan W, Saito S, Cao D. The role of γδT lymphocytes in atherosclerosis. Front Immunol 2024; 15:1369202. [PMID: 38774876 PMCID: PMC11106432 DOI: 10.3389/fimmu.2024.1369202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 04/18/2024] [Indexed: 05/24/2024] Open
Abstract
Atherosclerosis poses a significant threat to human health, impacting overall well-being and imposing substantial financial burdens. Current treatment strategies mainly focus on managing low-density lipids (LDL) and optimizing liver functions. However, it's crucial to recognize that Atherosclerosis involves more than just lipid accumulation; it entails a complex interplay of immune responses. Research highlights the pivotal role of lipid-laden macrophages in the formation of atherosclerotic plaques. These macrophages attract lymphocytes like CD4 and CD8 to the inflamed site, potentially intensifying the inflammatory response. γδ T lymphocytes, with their diverse functions in innate and adaptive immune responses, pathogen defense, antigen presentation, and inflammation regulation, have been implicated in the early stages of Atherosclerosis. However, our understanding of the roles of γδ T cells in Atherosclerosis remains limited. This mini-review aims to shed light on the characteristics and functions of γδ T cells in Atherosclerosis. By gaining insights into the roles of γδ T cells, we may uncover a promising strategy to mitigate plaque buildup and dampen the inflammatory response, thereby opening new avenues for effectively managing this condition.
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Affiliation(s)
- LiMin Xu
- Department of Neurosurgery, Shenzhen Entry-Exit Frontier Inspection Hospital, Shenzhen, China
| | - Fanfan Chen
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, China
| | - Wei Fan
- Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Suguru Saito
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - DuoYao Cao
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
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3
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Wang X, Zhang Y, Chung Y, Tu CR, Zhang W, Mu X, Wang M, Chan GC, Leung W, Lau Y, Liu Y, Tu W. Tumor vaccine based on extracellular vesicles derived from γδ-T cells exerts dual antitumor activities. J Extracell Vesicles 2023; 12:e12360. [PMID: 37654012 PMCID: PMC10471836 DOI: 10.1002/jev2.12360] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 08/09/2023] [Indexed: 09/02/2023] Open
Abstract
γδ-T cells are innate-like T cells with dual antitumor activities. They can directly eradicate tumor cells and function as immunostimulatory cells to promote antitumor immunity. Previous studies have demonstrated that small extracellular vesicles (EVs) derived from γδ-T cells (γδ-T-EVs) inherited the dual antitumor activities from their parental cells. However, it remains unknown whether γδ-T-EVs can be designed as tumors vaccine to improve therapeutic efficacy. Here, we found that γδ-T-EVs had immune adjuvant effects on antigen-presenting cells, as revealed by enhanced expression of antigen-presenting and co-stimulatory molecules, secretion of pro-inflammatory cytokines and antigen-presenting ability of DCs after γδ-T-EVs treatment. The γδ-T-EVs-based vaccine was designed by loading tumor-associated antigens (TAAs) into γδ-T-EVs. Compared with γδ-T-EVs, the γδ-T-EVs-based vaccine effectively promoted more tumor-specific T-cell responses. In addition, the vaccine regimen preserved direct antitumor effects and induced tumor cell apoptosis. Interestingly, the allogeneic γδ-T-EVs-based vaccine showed comparable preventive and therapeutic antitumor effects to their autologous counterparts, indicating a better way of centralization and standardization in clinical practice. Furthermore, the allogeneic γδ-T-EVs-based vaccine displayed advantages over the DC-EVs-based vaccine through their dual antitumor activities. This study provides a proof-of-concept for using the allogeneic γδ-T-EVs-based vaccine in cancer control.
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Affiliation(s)
- Xiwei Wang
- Department of Paediatrics & Adolescent Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong SARChina
| | - Yanmei Zhang
- Department of Paediatrics & Adolescent Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong SARChina
| | - Yuet Chung
- Department of Paediatrics & Adolescent Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong SARChina
| | - Chloe Ran Tu
- Department of Data Sciences, Dana‐Farber Cancer InstituteHarvard UniversityBostonMassachusettsUSA
| | - Wenyue Zhang
- Department of Paediatrics & Adolescent Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong SARChina
| | - Xiaofeng Mu
- Department of Paediatrics & Adolescent Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong SARChina
| | - Manni Wang
- Department of Paediatrics & Adolescent Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong SARChina
| | - Godfrey Chi‐Fung Chan
- Department of Paediatrics & Adolescent Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong SARChina
| | - Wing‐Hang Leung
- Department of Paediatrics & Adolescent Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong SARChina
| | - Yu‐Lung Lau
- Department of Paediatrics & Adolescent Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong SARChina
| | - Yinping Liu
- Department of Paediatrics & Adolescent Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong SARChina
| | - Wenwei Tu
- Department of Paediatrics & Adolescent Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong SARChina
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenChina
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4
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Singh K, Cogan S, Elekes S, Murphy DM, Cummins S, Curran R, Najda Z, Dunne MR, Jameson G, Gargan S, Martin S, Long A, Doherty DG. SARS-CoV-2 spike and nucleocapsid proteins fail to activate human dendritic cells or γδ T cells. PLoS One 2022; 17:e0271463. [PMID: 35834480 PMCID: PMC9282473 DOI: 10.1371/journal.pone.0271463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 06/30/2022] [Indexed: 11/20/2022] Open
Abstract
γδ T cells are thought to contribute to immunity against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), but the mechanisms by which they are activated by the virus are unknown. Using flow cytometry, we investigated if the two most abundant viral structural proteins, spike and nucleocapsid, can activate human γδ T cell subsets, directly or in the presence of dendritic cells (DC). Both proteins failed to induce interferon-γ production by Vδ1 or Vδ2 T cells within fresh mononuclear cells or lines of expanded γδ T cells generated from healthy donors, but the same proteins stimulated CD3+ cells from COVID-19 patients. The nucleocapsid protein stimulated interleukin-12 production by DC and downstream interferon-γ production by co-cultured Vδ1 and Vδ2 T cells, but protease digestion and use of an alternative nucleocapsid preparation indicated that this activity was due to contaminating non-protein material. Thus, SARS-CoV-2 spike and nucleocapsid proteins do not have stimulatory activity for DC or γδ T cells. We propose that γδ T cell activation in COVID-19 patients is mediated by immune recognition of viral RNA or other structural proteins by γδ T cells, or by other immune cells, such as DC, that produce γδ T cell-stimulatory ligands or cytokines.
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Affiliation(s)
- Kiran Singh
- Discipline of Immunology, Trinity Translational Medicine Institute, Trinity College Dublin, St. James’s Hospital, Dublin, Ireland
| | - Sita Cogan
- Discipline of Immunology, Trinity Translational Medicine Institute, Trinity College Dublin, St. James’s Hospital, Dublin, Ireland
| | - Stefan Elekes
- Discipline of Immunology, Trinity Translational Medicine Institute, Trinity College Dublin, St. James’s Hospital, Dublin, Ireland
| | - Dearbhla M. Murphy
- Discipline of Immunology, Trinity Translational Medicine Institute, Trinity College Dublin, St. James’s Hospital, Dublin, Ireland
| | - Sinead Cummins
- Discipline of Immunology, Trinity Translational Medicine Institute, Trinity College Dublin, St. James’s Hospital, Dublin, Ireland
| | - Rory Curran
- Discipline of Immunology, Trinity Translational Medicine Institute, Trinity College Dublin, St. James’s Hospital, Dublin, Ireland
| | - Zaneta Najda
- Molecular Cell Biology Laboratory, Smurfit Institute of Genetics, Trinity College Dublin, Dublin, Ireland
| | - Margaret R. Dunne
- Discipline of Immunology, Trinity Translational Medicine Institute, Trinity College Dublin, St. James’s Hospital, Dublin, Ireland
| | - Gráinne Jameson
- Discipline of Immunology, Trinity Translational Medicine Institute, Trinity College Dublin, St. James’s Hospital, Dublin, Ireland
| | - Siobhan Gargan
- Discipline of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, St. James’s Hospital, Dublin, Ireland
| | - Seamus Martin
- Molecular Cell Biology Laboratory, Smurfit Institute of Genetics, Trinity College Dublin, Dublin, Ireland
| | - Aideen Long
- Discipline of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, St. James’s Hospital, Dublin, Ireland
| | - Derek G. Doherty
- Discipline of Immunology, Trinity Translational Medicine Institute, Trinity College Dublin, St. James’s Hospital, Dublin, Ireland
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5
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Chan KF, Duarte JDG, Ostrouska S, Behren A. γδ T Cells in the Tumor Microenvironment-Interactions With Other Immune Cells. Front Immunol 2022; 13:894315. [PMID: 35880177 PMCID: PMC9307934 DOI: 10.3389/fimmu.2022.894315] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 06/15/2022] [Indexed: 01/02/2023] Open
Abstract
A growing number of studies have shown that γδ T cells play a pivotal role in mediating the clearance of tumors and pathogen-infected cells with their potent cytotoxic, cytolytic, and unique immune-modulating functions. Unlike the more abundant αβ T cells, γδ T cells can recognize a broad range of tumors and infected cells without the requirement of antigen presentation via major histocompatibility complex (MHC) molecules. Our group has recently demonstrated parts of the mechanisms of T-cell receptor (TCR)-dependent activation of Vγ9Vδ2+ T cells by tumors following the presentation of phosphoantigens, intermediates of the mevalonate pathway. This process is mediated through the B7 immunoglobulin family-like butyrophilin 2A1 (BTN2A1) and BTN3A1 complexes. Such recognition results in activation, a robust immunosurveillance process, and elicits rapid γδ T-cell immune responses. These include targeted cell killing, and the ability to produce copious quantities of cytokines and chemokines to exert immune-modulating properties and to interact with other immune cells. This immune cell network includes αβ T cells, B cells, dendritic cells, macrophages, monocytes, natural killer cells, and neutrophils, hence heavily influencing the outcome of immune responses. This key role in orchestrating immune cells and their natural tropism for tumor microenvironment makes γδ T cells an attractive target for cancer immunotherapy. Here, we review the current understanding of these important interactions and highlight the implications of the crosstalk between γδ T cells and other immune cells in the context of anti-tumor immunity.
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Affiliation(s)
- Kok Fei Chan
- Olivia Newton-John Cancer Research Institute, and School of Cancer Medicine, La Trobe University, Heidelberg, VIC, Australia
| | - Jessica Da Gama Duarte
- Olivia Newton-John Cancer Research Institute, and School of Cancer Medicine, La Trobe University, Heidelberg, VIC, Australia
| | - Simone Ostrouska
- Olivia Newton-John Cancer Research Institute, and School of Cancer Medicine, La Trobe University, Heidelberg, VIC, Australia
| | - Andreas Behren
- Olivia Newton-John Cancer Research Institute, and School of Cancer Medicine, La Trobe University, Heidelberg, VIC, Australia
- Department of Medicine, University of Melbourne, Parkville, VIC, Australia
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6
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Song Y, Liu Y, Teo HY, Liu H. Targeting Cytokine Signals to Enhance γδT Cell-Based Cancer Immunotherapy. Front Immunol 2022; 13:914839. [PMID: 35747139 PMCID: PMC9210953 DOI: 10.3389/fimmu.2022.914839] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 05/09/2022] [Indexed: 12/28/2022] Open
Abstract
γδT cells represent a small percentage of T cells in circulation but are found in large numbers in certain organs. They are considered to be innate immune cells that can exert cytotoxic functions on target cells without MHC restriction. Moreover, γδT cells contribute to adaptive immune response via regulating other immune cells. Under the influence of cytokines, γδT cells can be polarized to different subsets in the tumor microenvironment. In this review, we aimed to summarize the current understanding of antigen recognition by γδT cells, and the immune regulation mediated by γδT cells in the tumor microenvironment. More importantly, we depicted the polarization and plasticity of γδT cells in the presence of different cytokines and their combinations, which provided the basis for γδT cell-based cancer immunotherapy targeting cytokine signals.
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Affiliation(s)
- Yuan Song
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, Singapore
- Immunology Translational Research Program and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yonghao Liu
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, Singapore
- Immunology Translational Research Program and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Huey Yee Teo
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, Singapore
- Immunology Translational Research Program and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Haiyan Liu
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, Singapore
- Immunology Translational Research Program and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- *Correspondence: Haiyan Liu,
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7
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Abstract
In this review, we summarize and discuss recent advances in understanding the characteristics of tissue-resident memory T cells (TRMs) in the context of solid organ transplantation (SOT). We first introduce the traditionally understood noncirculating features of TRMs and the key phenotypic markers that define this population, then provide a detailed discussion of emerging concepts on the recirculation and plasticity of TRM in mice and humans. We comment on the potential heterogeneity of transient, temporary resident, and permanent resident T cells and potential interchangeable phenotypes between TRM and effector T cells in nonlymphoid tissues. We review the literature on the distribution of TRM in human nonlymphoid organs and association of clinical outcomes in different types of SOT, including intestine, lung, liver, kidney, and heart. We focus on both tissue-specific and organ-shared features of donor- and recipient-derived TRMs after transplantation whenever applicable. Studies with comprehensive sample collection, including longitudinal and cross-sectional controls, and applied advanced techniques such as multicolor flow cytometry to distinguish donor and recipient TRMs, bulk, and single-cell T-cell receptor sequencing to track clonotypes and define transcriptome profiles, and functional readouts to define alloreactivity and proinflammatory/anti-inflammatory activities are emphasized. We also discuss important findings on the tissue-resident features of regulatory αβ T cells and unconventional γδ T cells after transplantation. Understanding of TRM in SOT is a rapidly growing field that urges future studies to address unresolved questions regarding their heterogeneity, plasticity, longevity, alloreactivity, and roles in rejection and tolerance.
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Affiliation(s)
- Jianing Fu
- Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, United States
| | - Megan Sykes
- Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, United States
- Department of Surgery, Columbia University, New York, United States
- Department of Microbiology & Immunology, Columbia University, New York, United States
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8
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Anderson J, Thang CM, Thanh LQ, Dai VTT, Phan VT, Nhu BTH, Trang DNX, Trinh PTP, Nguyen TV, Toan NT, Harpur CM, Mulholland K, Pellicci DG, Do LAH, Licciardi PV. Immune Profiling of Cord Blood From Preterm and Term Infants Reveals Distinct Differences in Pro-Inflammatory Responses. Front Immunol 2021; 12:777927. [PMID: 34790206 PMCID: PMC8591285 DOI: 10.3389/fimmu.2021.777927] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 10/18/2021] [Indexed: 11/21/2022] Open
Abstract
Background Preterm infants are highly vulnerable to infectious disease. While many factors are likely to contribute to this enhanced susceptibility, the immature nature of the preterm immune system is postulated as one key factor. Methods In our study, we used high-dimensional flow cytometry and cytokine assays to characterise the immune profiles in 25 preterm (range: 30.4-34.1 weeks gestational age) and 25 term infant (range: 37-40 weeks gestational age) cord blood samples. Results We found that preterm infants exhibit reduced frequencies of monocytes, CD56bright NK cells, CD8+ T-cells, γδ T-cells and an increased frequency of intermediate monocytes, CD4+ T-cells, central memory CD4+ and CD8+ T-cells, Tregs and transitional B-cells compared to term infants. Pro-inflammatory cytokines IL-1β, IL-6 and IL-17A were lower in preterm infants in addition to chemokines IL-8, eotaxin, MIP-1α and MIP-1β. However, IL-15 and MCP-1 were higher in preterm infants. Conclusion Overall, we identify key differences in pro-inflammatory immune profiles between preterm and term infants. These findings may help to explain why preterm infants are more susceptible to infectious disease during early life and facilitate the development of targeted interventions to protect this highly vulnerable group.
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Affiliation(s)
- Jeremy Anderson
- Infection and Immunity, Murdoch Children's Research Institute, Melbourne, VIC, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, VIC, Australia
| | - Cao Minh Thang
- Department of Microbiology and Immunology, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh, Vietnam
| | | | - Vo Thi Trang Dai
- Department of Microbiology and Immunology, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh, Vietnam
| | - Van Thanh Phan
- Department of Microbiology and Immunology, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh, Vietnam
| | - Bui Thi Hong Nhu
- Department of Labour Delivery, Tu Du Hospital, Ho Chi Minh, Vietnam
| | | | | | | | - Nguyen Trong Toan
- Clinical Research Centre, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh, Vietnam
| | - Christopher M Harpur
- Infection and Immunity, Murdoch Children's Research Institute, Melbourne, VIC, Australia
| | - Kim Mulholland
- Infection and Immunity, Murdoch Children's Research Institute, Melbourne, VIC, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, VIC, Australia.,Epidemiology and Public Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Daniel G Pellicci
- Infection and Immunity, Murdoch Children's Research Institute, Melbourne, VIC, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, VIC, Australia.,Department of Microbiology and Immunology, University of Melbourne, Melbourne, VIC, Australia
| | - Lien Anh Ha Do
- Infection and Immunity, Murdoch Children's Research Institute, Melbourne, VIC, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, VIC, Australia
| | - Paul V Licciardi
- Infection and Immunity, Murdoch Children's Research Institute, Melbourne, VIC, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, VIC, Australia
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9
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Fu J, Khosravi-Maharlooei M, Sykes M. High Throughput Human T Cell Receptor Sequencing: A New Window Into Repertoire Establishment and Alloreactivity. Front Immunol 2021; 12:777756. [PMID: 34804070 PMCID: PMC8604183 DOI: 10.3389/fimmu.2021.777756] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 10/20/2021] [Indexed: 12/25/2022] Open
Abstract
Recent advances in high throughput sequencing (HTS) of T cell receptors (TCRs) and in transcriptomic analysis, particularly at the single cell level, have opened the door to a new level of understanding of human immunology and immune-related diseases. In this article, we discuss the use of HTS of TCRs to discern the factors controlling human T cell repertoire development and how this approach can be used in combination with human immune system (HIS) mouse models to understand human repertoire selection in an unprecedented manner. An exceptionally high proportion of human T cells has alloreactive potential, which can best be understood as a consequence of the processes governing thymic selection. High throughput TCR sequencing has allowed assessment of the development, magnitude and nature of the human alloresponse at a new level and has provided a tool for tracking the fate of pre-transplant-defined donor- and host-reactive TCRs following transplantation. New insights into human allograft rejection and tolerance obtained with this method in combination with single cell transcriptional analyses are reviewed here.
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Affiliation(s)
- Jianing Fu
- Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY, United States
| | - Mohsen Khosravi-Maharlooei
- Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY, United States
| | - Megan Sykes
- Columbia Center for Translational Immunology, Department of Medicine, Columbia University, New York, NY, United States
- Department of Surgery, Columbia University, New York, NY, United States
- Department of Microbiology & Immunology, Columbia University, New York, NY, United States
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10
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Lamb LS, Pereboeva L, Youngblood S, Gillespie GY, Nabors LB, Markert JM, Dasgupta A, Langford C, Spencer HT. A combined treatment regimen of MGMT-modified γδ T cells and temozolomide chemotherapy is effective against primary high grade gliomas. Sci Rep 2021; 11:21133. [PMID: 34702850 PMCID: PMC8548550 DOI: 10.1038/s41598-021-00536-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 10/07/2021] [Indexed: 01/13/2023] Open
Abstract
Chemotherapeutic drugs such as the alkylating agent Temozolomide (TMZ), in addition to reducing tumor mass, can also sensitize tumors to immune recognition by transient upregulation of multiple stress induced NKG2D ligands (NKG2DL). However, the potential for an effective response by innate lymphocyte effectors such as NK and γδ T cells that recognize NKG2DL is limited by the drug's concomitant lymphodepleting effects. We have previously shown that modification of γδ T cells with a methylguanine DNA methyltransferase (MGMT) transgene confers TMZ resistance via production of O6-alkylguanine DNA alkyltransferase (AGT) thereby enabling γδ T cell function in therapeutic concentrations of TMZ. In this study, we tested this strategy which we have termed Drug Resistant Immunotherapy (DRI) to examine whether combination therapy of TMZ and MGMT-modified γδ T cells could improve survival outcomes in four human/mouse xenograft models of primary and refractory GBM. Our results confirm that DRI leverages the innate response of γδ T cells to chemotherapy-induced stress associated antigen expression and achieves synergies that are significantly greater than either individual approach.
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Affiliation(s)
- Lawrence S Lamb
- Department of Medicine, Division of Hematology and Oncology, University of Alabama at Birmingham, Birmingham, AL, USA.
| | - Larisa Pereboeva
- Department of Medicine, Division of Hematology and Oncology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Samantha Youngblood
- Department of Medicine, Division of Hematology and Oncology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - G Yancey Gillespie
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - L Burton Nabors
- Department of Neurology, Division of Neuro-Oncology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - James M Markert
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Anindya Dasgupta
- Department of Pediatrics, Aflac Cancer and Blood Disorders Center, Emory University, Atlanta, GA, USA
| | - Catherine Langford
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - H Trent Spencer
- Department of Pediatrics, Aflac Cancer and Blood Disorders Center, Emory University, Atlanta, GA, USA
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11
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A Previously Unrecognized Granulomatous Variant of Gamma-Delta T-Cell Lymphoma. Dermatopathology (Basel) 2021; 8:221-228. [PMID: 34204191 PMCID: PMC8293259 DOI: 10.3390/dermatopathology8020027] [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] [Received: 04/27/2021] [Revised: 06/14/2021] [Accepted: 06/15/2021] [Indexed: 11/17/2022] Open
Abstract
Primary cutaneous γδ T-cell lymphoma (PCGD-TCL) is an extremely rare and aggressive T-cell neoplasm with complex heterogeneity. We present a series of two patients who presented with firm, subcutaneous nodules and were diagnosed with PCGD-TCL. In both cases, biopsies demonstrated a both superficial and deep adnexotropic infiltrate comprised of angiocentric, medium- to large-sized atypical lymphocytes. The infiltrate extended into the panniculus. Immuno–histochemical stains highlighted atypical lymphocytes that expressed CD3, CD8 and CD56 but were negative for EBV ISH. A brisk histiocytic response with focal aggregation into granulomas was highlighted with a PG-M1 stain. The atypical lymphocytes were positive for gene rearrangements on a TCR delta stain and negative for βF-1. CT and PET scan in one of the two patients demonstrated diffuse, subcutaneous, ground-glass foci; hypermetabolic soft tissue nodules; and lymphadenopathy in the lungs, as well as splenomegaly. A diagnosis of histiocyte-rich PCGD-TCL was rendered. A histiocyte-rich, granulomatous variant of γδ T-cell lymphoma is extremely rare. Its potentially misleading resemblance to inflammatory granulomatous conditions could pose a diagnostic pitfall in this already challenging condition. This variant may resemble granulomatous mycosis fungoides and granulomatous slack skin syndrome, but it has a distinct, aggressive clinical outcome.
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12
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de Weerdt I, Lameris R, Ruben JM, de Boer R, Kloosterman J, King LA, Levin MD, Parren PWHI, de Gruijl TD, Kater AP, van der Vliet HJ. A Bispecific Single-Domain Antibody Boosts Autologous Vγ9Vδ2-T Cell Responses Toward CD1d in Chronic Lymphocytic Leukemia. Clin Cancer Res 2021; 27:1744-1755. [PMID: 33451981 DOI: 10.1158/1078-0432.ccr-20-4576] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/30/2020] [Accepted: 01/13/2021] [Indexed: 11/16/2022]
Abstract
PURPOSE Although considerable progress has been made with autologous T cell-based therapy in B-cell malignancies, application in chronic lymphocytic leukemia (CLL) lags behind due to disappointing response rates as well as substantial toxicity that is of particular concern in the elderly CLL population. Vγ9Vδ2-T cells form a conserved T-cell subset with strong intrinsic immunotherapeutic potential, largely because of their capacity to be triggered by phosphoantigens that can be overproduced by CLL and other malignant cells. Specific activation of Vγ9Vδ2-T cells by a bispecific antibody may improve the efficacy and toxicity of autologous T-cell-based therapy in CLL. EXPERIMENTAL DESIGN We evaluated CD1d expression in a cohort of 78 untreated patients with CLL and generated and functionally characterized a CD1d-specific Vγ9Vδ2-T cell engager based on single-domain antibodies (VHH). RESULTS CD1d was expressed by CLL in the majority of patients, particularly in patients with advanced disease. The CD1d-specific Vγ9Vδ2-T cell engager induced robust activation and degranulation of Vγ9Vδ2-T cells, enabling Vγ9Vδ2-T cells from patients with CLL to lyse autologous leukemic cells at low effector-to-target ratios. Expression of CD1d on CLL cells is upregulated by all-trans retinoic acid, and sensitizes the malignant cells to bispecific VHH-induced lysis. Furthermore, we provide evidence that the Vγ9Vδ2-T cell receptor retains responsiveness to phosphoantigens when the bispecific VHH is bound, and aminobisphosphonates can therefore enhance bispecific Vγ9Vδ2-T cell engager-mediated tumor-specific killing. CONCLUSIONS Collectively, our data demonstrate the immunotherapeutic potential of this novel CD1d-specific Vγ9Vδ2-T cell engager in CLL.
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Affiliation(s)
- Iris de Weerdt
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam Infection & Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.,Department of Hematology, Cancer Center Amsterdam, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Roeland Lameris
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam Infection & Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Jurjen M Ruben
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam Infection & Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Renate de Boer
- Department of Experimental Immunology, Cancer Center Amsterdam, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Jan Kloosterman
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam Infection & Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Lisa A King
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam Infection & Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Mark-David Levin
- Department of Internal Medicine, Albert Schweitzer Hospital, Dordrecht, the Netherlands
| | - Paul W H I Parren
- Lava Therapeutics, Utrecht, the Netherlands.,Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, the Netherlands
| | - Tanja D de Gruijl
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam Infection & Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Arnon P Kater
- Department of Hematology, Cancer Center Amsterdam, Amsterdam Infection & Immunity Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.,Lymphoma and Myeloma Center Amsterdam (LYMMCARE), Amsterdam, the Netherlands
| | - Hans J van der Vliet
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam Infection & Immunity Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands. .,Lava Therapeutics, Utrecht, the Netherlands
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13
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Qi C, Wang Y, Li P, Zhao J. Gamma Delta T Cells and Their Pathogenic Role in Psoriasis. Front Immunol 2021; 12:627139. [PMID: 33732249 PMCID: PMC7959710 DOI: 10.3389/fimmu.2021.627139] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 01/15/2021] [Indexed: 12/14/2022] Open
Abstract
γδT cells are an unconventional population of T lymphocytes that play an indispensable role in host defense, immune surveillance, and homeostasis of the immune system. They display unique developmental, distributional, and functional patterns and rapidly respond to various insults and contribute to diverse diseases. Although γδT cells make up only a small portion of the total T cell pool, emerging evidence suggest that aberrantly activated γδT cells may play a role in the pathogenesis of psoriasis. Dermal γδT cells are the major IL-17-producing cells in the skin that respond to IL-23 stimulation. Furthermore, γδT cells exhibit memory-cell-like characteristics that mediate repeated episodes of psoriatic inflammation. This review discusses the differentiation, development, distribution, and biological function of γδT cells and the mechanisms by which they contribute to psoriasis. Potential therapeutic approaches targeting these cells in psoriasis have also been detailed.
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Affiliation(s)
- Cong Qi
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing Institute of Traditional Chinese Medicine, Beijing, China
| | - Yazhuo Wang
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing Institute of Traditional Chinese Medicine, Beijing, China
| | - Ping Li
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing Institute of Traditional Chinese Medicine, Beijing, China
| | - Jingxia Zhao
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing Institute of Traditional Chinese Medicine, Beijing, China
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14
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Biradar S, Lotze MT, Mailliard RB. The Unknown Unknowns: Recovering Gamma-Delta T Cells for Control of Human Immunodeficiency Virus (HIV). Viruses 2020; 12:v12121455. [PMID: 33348583 PMCID: PMC7766279 DOI: 10.3390/v12121455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/11/2020] [Accepted: 12/15/2020] [Indexed: 12/14/2022] Open
Abstract
Recent advances in γδ T cell biology have focused on the unique attributes of these cells and their role in regulating innate and adaptive immunity, promoting tissue homeostasis, and providing resistance to various disorders. Numerous bacterial and viral pathogens, including human immunodeficiency virus-1 (HIV), greatly alter the composition of γδ T cells in vivo. Despite the effectiveness of antiretroviral therapy (ART) in controlling HIV and restoring health in those affected, γδ T cells are dramatically impacted during HIV infection and fail to reconstitute to normal levels in HIV-infected individuals during ART for reasons that are not clearly understood. Importantly, their role in controlling HIV infection, and the implications of their failure to rebound during ART are also largely unknown and understudied. Here, we review important aspects of human γδ T cell biology, the effector and immunomodulatory properties of these cells, their prevalence and function in HIV, and their immunotherapeutic potential.
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Affiliation(s)
- Shivkumar Biradar
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, PA 15261, USA;
| | - Michael T. Lotze
- Departments of Surgery, Immunology, and Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA;
| | - Robbie B. Mailliard
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, PA 15261, USA;
- Correspondence:
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15
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Sullivan LC, Shaw EM, Stankovic S, Snell GI, Brooks AG, Westall GP. The complex existence of γδ T cells following transplantation: the good, the bad and the simply confusing. Clin Transl Immunology 2019; 8:e1078. [PMID: 31548887 PMCID: PMC6748302 DOI: 10.1002/cti2.1078] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 08/05/2019] [Accepted: 08/05/2019] [Indexed: 12/14/2022] Open
Abstract
Gamma delta (γδ) T cells are a highly heterogeneous population of lymphocytes that exhibit innate and adaptive immune properties. Despite comprising the majority of residing lymphocytes in many organs, the role of γδ T cells in transplantation outcomes is under‐researched. γδ T cells can recognise a diverse array of ligands and exert disparate effector functions. As such, they may potentially contribute to both allograft acceptance and rejection, as well as impacting on infection and post‐transplant malignancy. Here, we review the current literature on the role and function of γδ T cells following solid organ and hematopoietic stem cell transplantation.
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Affiliation(s)
- Lucy C Sullivan
- Department of Microbiology and Immunology The University of Melbourne at The Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia.,Lung Transplant Service The Alfred Hospital Melbourne VIC Australia
| | - Evangeline M Shaw
- Department of Microbiology and Immunology The University of Melbourne at The Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia
| | - Sanda Stankovic
- Department of Microbiology and Immunology The University of Melbourne at The Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia
| | - Gregory I Snell
- Lung Transplant Service The Alfred Hospital Melbourne VIC Australia
| | - Andrew G Brooks
- Department of Microbiology and Immunology The University of Melbourne at The Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia
| | - Glen P Westall
- Lung Transplant Service The Alfred Hospital Melbourne VIC Australia
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16
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Juno JA, Eriksson EM. γδ T-cell responses during HIV infection and antiretroviral therapy. Clin Transl Immunology 2019; 8:e01069. [PMID: 31321033 PMCID: PMC6636517 DOI: 10.1002/cti2.1069] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/27/2019] [Accepted: 06/28/2019] [Indexed: 12/16/2022] Open
Abstract
HIV infection is associated with a rapid and sustained inversion of the Vδ1:Vδ2 T‐cell ratio in peripheral blood. Studies of antiretroviral therapy (ART)‐treated cohorts suggest that ART is insufficient to reconstitute either the frequency or function of the γδ T‐cell subset. Recent advances are now beginning to shed light on the relationship between microbial translocation, chronic inflammation, immune ageing and γδ T‐cell immunology. Here, we review the impact of acute, chronic untreated and treated HIV infection on circulating and mucosal γδ T‐cell subsets and highlight novel approaches to harness γδ T cells as components of anti‐HIV immunotherapy.
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Affiliation(s)
- Jennifer A Juno
- Department of Microbiology and Immunology The University of Melbourne at The Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia
| | - Emily M Eriksson
- Division of Population Health and Immunity Walter and Eliza Hall Institute of Medical Science Melbourne VIC Australia.,Department of Medical Biology The University of Melbourne Melbourne VIC Australia
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17
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Castella B, Melaccio A, Foglietta M, Riganti C, Massaia M. Vγ9Vδ2 T Cells as Strategic Weapons to Improve the Potency of Immune Checkpoint Blockade and Immune Interventions in Human Myeloma. Front Oncol 2018; 8:508. [PMID: 30460198 PMCID: PMC6232124 DOI: 10.3389/fonc.2018.00508] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 10/17/2018] [Indexed: 12/20/2022] Open
Abstract
The advent of immune checkpoint (ICP) blockade has introduced an unprecedented paradigm shift in the treatment of cancer. Though very promising, there is still a substantial proportion of patients who do not respond or develop resistance to ICP blockade. In vitro and in vivo models are eagerly needed to identify mechanisms to maximize the immune potency of ICP blockade and overcome primary and acquired resistance to ICP blockade. Vγ9Vδ2 T cells isolated from the bone marrow (BM) from multiple myeloma (MM) are excellent tools to investigate the mechanisms of resistance to PD-1 blockade and to decipher the network of mutual interactions between PD-1 and the immune suppressive tumor microenvironment (TME). Vγ9Vδ2 T cells can easily be interrogated to dissect the progressive immune competence impairment generated in the TME by the long-lasting exposure to myeloma cellss. BM MM Vγ9Vδ2 T cells are PD-1+ and anergic to phosphoantigen (pAg) stimulation; notably, single agent PD-1 blockade is insufficient to fully recover their anti-tumor activity in vitro indicating that additional players are involved in the anergy of Vγ9Vδ2 T cells. In this mini-review we will discuss the value of Vγ9Vδ2 T cells as investigational tools to improve the potency of ICP blockade and immune interventions in MM.
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Affiliation(s)
- Barbara Castella
- Laboratorio di Immunologia dei Tumori del Sangue, Centro Interdipartimentale di Ricerca in Biologia Molecolare, Università degli Studi di Torino, Turin, Italy
| | - Assunta Melaccio
- Dipartimento di Scienze Biomediche ed Oncologia Umana, Sezione di Medicina Interna ed Oncologia, Università degli studi di Bari "A. Moro", Bari, Italy
| | - Myriam Foglietta
- Laboratorio di Immunologia dei Tumori del Sangue, Centro Interdipartimentale di Ricerca in Biologia Molecolare, Università degli Studi di Torino, Turin, Italy.,SC Ematologia, AO S.Croce e Carle, Cuneo, Italy
| | - Chiara Riganti
- Dipartimento di Oncologia, Università degli Studi di Torino, Turin, Italy
| | - Massimo Massaia
- Laboratorio di Immunologia dei Tumori del Sangue, Centro Interdipartimentale di Ricerca in Biologia Molecolare, Università degli Studi di Torino, Turin, Italy.,SC Ematologia, AO S.Croce e Carle, Cuneo, Italy
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18
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Stolk D, van der Vliet HJ, de Gruijl TD, van Kooyk Y, Exley MA. Positive & Negative Roles of Innate Effector Cells in Controlling Cancer Progression. Front Immunol 2018; 9:1990. [PMID: 30298063 PMCID: PMC6161645 DOI: 10.3389/fimmu.2018.01990] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 08/13/2018] [Indexed: 12/29/2022] Open
Abstract
Innate immune cells are active at the front line of host defense against pathogens and now appear to play a range of roles under non-infectious conditions as well, most notably in cancer. Establishing the balance of innate immune responses is critical for the “flavor” of these responses and subsequent adaptive immunity and can be either “good or bad” in controlling cancer progression. The importance of innate NK cells in tumor immune responses has already been extensively studied over the last few decades, but more recently several relatively mono- or oligo-clonal [i.e., (semi-) invariant] innate T cell subsets received substantial interest in tumor immunology including invariant natural killer T (iNKT), γδ-T and mucosal associated invariant T (MAIT) cells. These subsets produce high levels of various pro- and/or anti-inflammatory cytokines/chemokines reflecting their capacity to suppress or stimulate immune responses. Survival of patients with cancer has been linked to the frequencies and activation status of NK, iNKT, and γδ-T cells. It has become clear that NK, iNKT, γδ-T as well as MAIT cells all have physiological roles in anti-tumor responses, which emphasize their possible relevance for tumor immunotherapy. A variety of clinical trials has focused on manipulating NK, iNKT, and γδ-T cell functions as a cancer immunotherapeutic approach demonstrating their safety and potential for achieving beneficial therapeutic effects, while the exploration of MAIT cell related therapies is still in its infancy. Current issues limiting the full therapeutic potential of these innate cell subsets appear to be related to defects and suppressive properties of these subsets that, with the right stimulus, might be reversed. In general, how innate lymphocytes are activated appears to control their subsequent abilities and consequent impact on adaptive immunity. Controlling these potent regulators and mediators of the immune system should enable their protective roles to dominate and their deleterious potential (in the specific context of cancer) to be mitigated.
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Affiliation(s)
- Dorian Stolk
- Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, Netherlands
| | - Hans J van der Vliet
- Department of Medical Oncology, VU University Medical Center, Amsterdam, Netherlands
| | - Tanja D de Gruijl
- Department of Medical Oncology, VU University Medical Center, Amsterdam, Netherlands
| | - Yvette van Kooyk
- Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, Netherlands
| | - Mark A Exley
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom.,Harvard Medical School, Brigham and Women's Hospital, Boston, MA, United States.,Agenus, Inc., Lexington, MA, United States
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19
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Zhao Y, Lin L, Xiao Z, Li M, Wu X, Li W, Li X, Zhao Q, Wu Y, Zhang H, Yin J, Zhang L, Cho CH, Shen J. Protective Role of γδ T Cells in Different Pathogen Infections and Its Potential Clinical Application. J Immunol Res 2018; 2018:5081634. [PMID: 30116753 PMCID: PMC6079409 DOI: 10.1155/2018/5081634] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 06/10/2018] [Indexed: 12/24/2022] Open
Abstract
γδ T cells, a subgroup of T cells based on the γδ TCR, when compared with conventional T cells (αβ T cells), make up a very small proportion of T cells. However, its various subgroups are widely distributed in different parts of the human body and are attractive effectors for infectious disease immunity. γδ T cells are activated and expanded by nonpeptidic antigens (P-Ags), major histocompatibility complex (MHC) molecules, and lipids which are associated with different kinds of pathogen infections. Activation and proliferation of γδ T cells play a significant role in diverse infectious diseases induced by viruses, bacteria, and parasites and exert their potential effector function to effectively eliminate infection. It is well known that many types of infectious diseases are detrimental to human life and health and give rise to high incidence of illnesses and death rate all over the world. To date, there is no comprehensive understanding of the correlation between γδ T cells and infectious diseases. In this review, we will focus on the various subgroups of γδ T cells (mainly Vδ1 T cells and Vδ2 T cells) which can induce multiple immune responses or effective functions to fight against common pathogen infections, such as Mycobacterium tuberculosis, Listeria monocytogenes, influenza viruses, HIV, EBV, and HBV. Hopefully, the gamma-delta T cell study will provide a novel effective way to treat infectious diseases.
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Affiliation(s)
- Yueshui Zhao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Ling Lin
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Zhangang Xiao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Mingxing Li
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Xu Wu
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Wanping Li
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Xiaobing Li
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Qijie Zhao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Yuanlin Wu
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Hanyu Zhang
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Jianhua Yin
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Lingling Zhang
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Chi Hin Cho
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Jing Shen
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
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20
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Petrasca A, Melo AM, Breen EP, Doherty DG. Human Vδ3+ γδ T cells induce maturation and IgM secretion by B cells. Immunol Lett 2018; 196:126-134. [DOI: 10.1016/j.imlet.2018.02.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 01/12/2018] [Accepted: 02/05/2018] [Indexed: 02/06/2023]
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21
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Andreu-Ballester JC, Zamora V, Garcia-Ballesteros C, Benet-Campos C, Lopez-Chuliá F, Tormo-Calandín C, Cuéllar C. Anti-Anisakis sp. antibodies in serum of patients with sepsis and their relationship with γδ T cells and disease severity. Int J Parasitol 2018. [PMID: 29518408 DOI: 10.1016/j.ijpara.2017.11.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Immunosuppression in sepsis reduces both αβ and γδ T cell subsets. Anisakis sp. is a parasitic nematode with a high prevalence in Spain. Previous contact with the parasite is related to a decrease in γδ T cells. Anti-Anisakis antibodies were measured and related to αβ and γδ T cells in 114 septic patients versus 97 healthy controls. Significant differences were seen with respect to the groups with severe sepsis and septic shock where lower anti-Anisakis levels were observed. A similar decrease appeared in the case of specific IgM with significant differences between the groups of control/uncomplicated sepsis versus severe sepsis and septic shock. These differences were also apparent in the case of specific IgA. The lowest IgE levels were detected in the septic shock group. Anti-Anisakis IgG levels significantly increased in septic shock groups compared with the controls. We observed positive correlations among anti-Anisakis IgA levels and all γδ T cell subsets. There were negative correlations among IgA levels and APACHE and SOFA indices. Greater contact with the parasite (IgG) was directly related with septic shock, inflammation and markers of sepsis severity. A lack of protection in the mucosa (IgA and γδ T cells) was associated with the disease severity.
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Affiliation(s)
| | - Vega Zamora
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | | | | | | | | | - Carmen Cuéllar
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain.
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22
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Fazekas B, Moreno-Olivera A, Kelly Y, O'Hara P, Murray S, Kennedy A, Conlon N, Scott J, Melo AM, Hickey FB, Dooley D, O'Brien EC, Moran S, Doherty DG, Little MA. Alterations in circulating lymphoid cell populations in systemic small vessel vasculitis are non-specific manifestations of renal injury. Clin Exp Immunol 2017; 191:180-188. [PMID: 28960271 DOI: 10.1111/cei.13058] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/19/2017] [Indexed: 02/06/2023] Open
Abstract
Innate lymphocyte populations, such as innate lymphoid cells (ILCs), γδ T cells, invariant natural killer T (iNK T) cells and mucosal-associated invariant T (MAIT) cells are emerging as important effectors of innate immunity and are involved in various inflammatory and autoimmune diseases. The aim of this study was to assess the frequencies and absolute numbers of innate lymphocytes as well as conventional lymphocytes and monocytes in peripheral blood from a cohort of anti-neutrophil cytoplasm autoantibody (ANCA)-associated vasculitis (AAV) patients. Thirty-eight AAV patients and 24 healthy and disease controls were included in the study. Patients with AAV were sampled both with and without immunosuppressive treatment, and in the setting of both active disease and remission. The frequencies of MAIT and ILC2 cells were significantly lower in patients with AAV and in the disease control group compared to healthy controls. These reductions in the AAV patients remained during remission. B cell count and frequencies were significantly lower in AAV in remission compared to patients with active disease and disease controls. Despite the strong T helper type 2 (Th) preponderance of eosinophilic granulomatosis with polyangiitis, we did not observe increased ILC2 frequency in this cohort of patients. The frequencies of other cell types were similar in all groups studied. Reductions in circulating ILC2 and MAIT cells reported previously in patients with AAV are not specific for AAV, but are more likely to be due to non-specific manifestations of renal impairment and chronic illness. Reduction in B cell numbers in AAV patients experiencing remission is probably therapy-related.
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Affiliation(s)
- B Fazekas
- Trinity Health Kidney Centre, Trinity Translational Medicine Institute, Dublin, Ireland
| | | | - Y Kelly
- Trinity Health Kidney Centre, Trinity Translational Medicine Institute, Dublin, Ireland
| | - P O'Hara
- Trinity Health Kidney Centre, Trinity Translational Medicine Institute, Dublin, Ireland
| | - S Murray
- Trinity Health Kidney Centre, Trinity Translational Medicine Institute, Dublin, Ireland
| | - A Kennedy
- Trinity Health Kidney Centre, Trinity Translational Medicine Institute, Dublin, Ireland
| | - N Conlon
- Department of Immunology, Trinity College, Dublin, Ireland
| | - J Scott
- Trinity Health Kidney Centre, Trinity Translational Medicine Institute, Dublin, Ireland
| | - A M Melo
- Department of Immunology, Trinity College, Dublin, Ireland
| | - F B Hickey
- Trinity Health Kidney Centre, Trinity Translational Medicine Institute, Dublin, Ireland
| | - D Dooley
- Trinity Health Kidney Centre, Trinity Translational Medicine Institute, Dublin, Ireland
| | - E C O'Brien
- Trinity Health Kidney Centre, Trinity Translational Medicine Institute, Dublin, Ireland
| | - S Moran
- Trinity Health Kidney Centre, Trinity Translational Medicine Institute, Dublin, Ireland
| | - D G Doherty
- Department of Immunology, Trinity College, Dublin, Ireland
| | - M A Little
- Trinity Health Kidney Centre, Trinity Translational Medicine Institute, Dublin, Ireland.,Irish Centre for Vascular Biology, Trinity College, Dublin, Ireland
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23
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Gan PY, Fujita T, Ooi JD, Alikhan MA, Dick J, Shim R, Odobasic D, O'Sullivan KM, Kitching AR, Holdsworth SR. Pathogenic Role for γδ T Cells in Autoimmune Anti-Myeloperoxidase Glomerulonephritis. THE JOURNAL OF IMMUNOLOGY 2017; 199:3042-3050. [PMID: 28954887 DOI: 10.4049/jimmunol.1602025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 08/24/2017] [Indexed: 01/13/2023]
Abstract
Myeloperoxidase (MPO) anti-neutrophil cytoplasmic Ab (ANCA)-associated vasculitis results from autoimmunity to MPO. IL-17A plays a critical role in generating this form of autoimmune injury but its cell of origin is uncertain. We addressed the hypothesis that IL-17A-producing γδ T cells are a nonredundant requisite in the development of MPO autoimmunity and glomerulonephritis (GN). We studied MPO-ANCA GN in wild type, αβ, or γδ T cell-deficient (C57BL/6, βTCR-/- , and δTCR-/- respectively) mice. Both T cell populations played important roles in the generation of autoimmunity to MPO and GN. Humoral autoimmunity was dependent on intact αβ T cells but was unaffected by γδ T cell deletion. Following MPO immunization, activated γδ T cells migrate to draining lymph nodes. Studies in δTCR-/- and transfer of γδ T cells to δTCR-/- mice show that γδ T cells facilitate the generation of anti-MPO autoimmunity and GN. δTCR-/- mice that received IL-17A-/- γδ T cells demonstrate that the development of anti-MPO autoimmunity and GN are dependent on γδ T cell IL-17A production. Finally, transfer of anti-MPO CD4+ T cell clones to naive δTCR-/- and wild type mice with planted glomerular MPO shows that γδ T cells are also necessary for recruitment of anti-MPO αβ CD4+ effector T cells. This study demonstrates that IL-17A produced by γδ T cells plays a critical role in the pathogenesis of MPO-ANCA GN by promoting the development of MPO-specific αβ T cells.
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Affiliation(s)
- Poh-Yi Gan
- Centre for Inflammatory Diseases, Department of Medicine, Monash Medical Centre, Monash University, Clayton, Victoria 3168, Australia; .,Department of Immunology, Monash Health, Monash Medical Centre, Clayton, Victoria 3168, Australia
| | - Takeshi Fujita
- Department of Cardiology, Respiratory Medicine and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; and
| | - Joshua Daniel Ooi
- Centre for Inflammatory Diseases, Department of Medicine, Monash Medical Centre, Monash University, Clayton, Victoria 3168, Australia
| | - Maliha Asghar Alikhan
- Centre for Inflammatory Diseases, Department of Medicine, Monash Medical Centre, Monash University, Clayton, Victoria 3168, Australia
| | - Jonathan Dick
- Centre for Inflammatory Diseases, Department of Medicine, Monash Medical Centre, Monash University, Clayton, Victoria 3168, Australia.,Department of Nephrology, Monash Health, Monash Medical Centre, Clayton, Victoria 3168, Australia
| | - Raymond Shim
- Centre for Inflammatory Diseases, Department of Medicine, Monash Medical Centre, Monash University, Clayton, Victoria 3168, Australia
| | - Dragana Odobasic
- Centre for Inflammatory Diseases, Department of Medicine, Monash Medical Centre, Monash University, Clayton, Victoria 3168, Australia
| | - Kim Maree O'Sullivan
- Centre for Inflammatory Diseases, Department of Medicine, Monash Medical Centre, Monash University, Clayton, Victoria 3168, Australia
| | - Arthur Richard Kitching
- Centre for Inflammatory Diseases, Department of Medicine, Monash Medical Centre, Monash University, Clayton, Victoria 3168, Australia.,Department of Nephrology, Monash Health, Monash Medical Centre, Clayton, Victoria 3168, Australia
| | - Stephen Roger Holdsworth
- Centre for Inflammatory Diseases, Department of Medicine, Monash Medical Centre, Monash University, Clayton, Victoria 3168, Australia.,Department of Immunology, Monash Health, Monash Medical Centre, Clayton, Victoria 3168, Australia.,Department of Nephrology, Monash Health, Monash Medical Centre, Clayton, Victoria 3168, Australia
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24
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Stervbo U, Pohlmann D, Baron U, Bozzetti C, Jürchott K, Mälzer JN, Nienen M, Olek S, Roch T, Schulz AR, Warth S, Neumann A, Thiel A, Grützkau A, Babel N. Age dependent differences in the kinetics of γδ T cells after influenza vaccination. PLoS One 2017; 12:e0181161. [PMID: 28700738 PMCID: PMC5507438 DOI: 10.1371/journal.pone.0181161] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 06/26/2017] [Indexed: 01/13/2023] Open
Abstract
Immunosenescence is a hallmark of the aging immune system and is considered the main cause of a reduced vaccine efficacy in the elderly. Although γδ T cells can become activated by recombinant influenza hemagglutinin, their age-related immunocompetence during a virus-induced immune response has so far not been investigated. In this study we evaluate the kinetics of γδ T cells after vaccination with the trivalent 2011/2012 northern hemisphere seasonal influenza vaccine. We applied multi-parametric flow cytometry to a cohort of 21 young (19-30 years) and 23 elderly (53-67 years) healthy individuals. Activated and proliferating γδ T cells, as identified by CD38 and Ki67 expression, were quantified on the days 0, 3, 7, 10, 14, 17, and 21. We observed a significantly lower number of activated and proliferating γδ T cells at baseline and following vaccination in elderly as compared to young individuals. The kinetics changes of activated γδ T cells were much stronger in the young, while corresponding changes in the elderly occurred slower. In addition, we observed an association between day 21 HAI titers of influenza A and the frequencies of Ki67+ γδ T cells at day 7 in the young. In conclusion, aging induces alterations of the γδ T cell response that might have negative implications for vaccination efficacy.
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Affiliation(s)
- Ulrik Stervbo
- Berlin-Brandenburg Center for Regenerative Therapies, Charité –Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin, Germany
- Center for Translational Medicine, Medical Clinic I, Marien Hospital Herne, University Hospital of the Ruhr-University Bochum, Hölkeskampring 40, Herne, Germany
| | - Dominika Pohlmann
- Berlin-Brandenburg Center for Regenerative Therapies, Charité –Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin, Germany
| | - Udo Baron
- Epiontis GmbH, Rudower Chaussee 29, Berlin, Germany
| | - Cecilia Bozzetti
- Berlin-Brandenburg Center for Regenerative Therapies, Charité –Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin, Germany
| | - Karsten Jürchott
- Berlin-Brandenburg Center for Regenerative Therapies, Charité –Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin, Germany
| | - Julia Nora Mälzer
- Berlin-Brandenburg Center for Regenerative Therapies, Charité –Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin, Germany
| | - Mikalai Nienen
- Center for Translational Medicine, Medical Clinic I, Marien Hospital Herne, University Hospital of the Ruhr-University Bochum, Hölkeskampring 40, Herne, Germany
| | - Sven Olek
- Epiontis GmbH, Rudower Chaussee 29, Berlin, Germany
| | - Toralf Roch
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Centre for Materials and Coastal Research, Kantstraße 55, Teltow, Germany
| | - Axel Ronald Schulz
- Berlin-Brandenburg Center for Regenerative Therapies, Charité –Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin, Germany
- Deutsches Rheuma-Forschungszentrum Berlin–a Leibniz Institute, Charitéplatz 1, Berlin, Germany
| | - Sarah Warth
- Berlin-Brandenburg Center for Regenerative Therapies, Charité –Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin, Germany
| | - Avidan Neumann
- Berlin-Brandenburg Center for Regenerative Therapies, Charité –Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin, Germany
| | - Andreas Thiel
- Berlin-Brandenburg Center for Regenerative Therapies, Charité –Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin, Germany
| | - Andreas Grützkau
- Deutsches Rheuma-Forschungszentrum Berlin–a Leibniz Institute, Charitéplatz 1, Berlin, Germany
| | - Nina Babel
- Berlin-Brandenburg Center for Regenerative Therapies, Charité –Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin, Germany
- Center for Translational Medicine, Medical Clinic I, Marien Hospital Herne, University Hospital of the Ruhr-University Bochum, Hölkeskampring 40, Herne, Germany
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25
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The Role of γδ T Cells in Systemic Lupus Erythematosus. J Immunol Res 2016; 2016:2932531. [PMID: 26981547 PMCID: PMC4766344 DOI: 10.1155/2016/2932531] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 01/13/2016] [Indexed: 11/25/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease that is characterized by the overproduction of autoantibodies against an array of nuclear and cytoplasmic antigens and affects multiple organs, such as the skin, joints, kidneys, and neuronal tissues. T cells have been recognized as important players in the development of SLE due to their functions in cytokine secretion, antigen presentation, and supporting B cells for antibody production. γδ T cells are a minor population of T cells that play important roles in infection and tumor-associated disease. In recent years, the role of γδ T cells in autoimmune diseases has been investigated. In this review, we discussed the role of γδ T cells in the pathogenesis of SLE.
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26
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Hyperactivation and in situ recruitment of inflammatory Vδ2 T cells contributes to disease pathogenesis in systemic lupus erythematosus. Sci Rep 2015; 5:14432. [PMID: 26395317 PMCID: PMC4585774 DOI: 10.1038/srep14432] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 08/28/2015] [Indexed: 12/01/2022] Open
Abstract
In this study, we measured the proportion of peripheral Vδ2 T cells as well as the status and chemokine receptor expression profiles in SLE patients and healthy control (HC). In addition, Vδ2 T cell infiltration in the kidneys of patients with lupus nephritis was examined. The results showed that the percentage of peripheral Vδ2 T cells in new-onset SLE was decreased, and negatively correlated with the SLE Disease Activity Index score and the severity of proteinuria. These cells had a decreased apoptosis but an increased proliferation, and they showed increased accumulation in SLE kidneys. Moreover, IL-21 production and CD40L, CCR4, CCR7, CCR8, CXCR1 and CX3CR1 expression in Vδ2 T cells from SLE patients was significantly higher than from HC (p < 0.05), and these factors were downregulated in association with the repopulation of peripheral Vδ2 T cells in patients who were in remission (p < 0.05). In addition, anti-TCR Vδ2 antibodies activation significantly upregulated these chemokine receptors on Vδ2 T cells from HC, and this effect was blocked by inhibitors of PLC-γ1, MAPK/Erk, and PI3K signaling pathways. Our findings demonstrate that the distribution and function status of Vδ2 T cells from SLE patients are abnormal, and these aberrations may contribute to disease pathogenesis.
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27
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Doherty DG. Immunity, tolerance and autoimmunity in the liver: A comprehensive review. J Autoimmun 2015; 66:60-75. [PMID: 26358406 DOI: 10.1016/j.jaut.2015.08.020] [Citation(s) in RCA: 207] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 08/26/2015] [Indexed: 12/14/2022]
Abstract
The hepatic immune system is constantly exposed to a massive load of harmless dietary and commensal antigens, to which it must remain tolerant. Immune tolerance in the liver is mediated by a number of specialized antigen-presenting cells, including dendritic cells, Kupffer cells, liver sinusoidal endothelial cells and hepatic stellate cells. These cells are capable of presenting antigens to T cells leading to T cell apoptosis, anergy, or differentiation into regulatory T cells. However, the hepatic immune system must also be able to respond to pathogens and tumours and therefore must be equipped with mechanisms to override immune tolerance. The liver is a site of accumulation of a number of innate lymphocyte populations, including natural killer cells, CD56(+) T cells, natural killer T cells, γδ T cells, and mucosal-associated invariant T cells. Innate lymphocytes recognize conserved metabolites derived from microorganisms and host cells and respond by killing target cells or promoting the differentiation and/or activation of other cells of the immune system. Innate lymphocytes can promote the maturation of antigen-presenting cells from their precursors and thereby contribute to the generation of immunogenic T cell responses. These cells may be responsible for overriding hepatic immune tolerance to autoantigens, resulting in the induction and maintenance of autoreactive T cells that mediate liver injury causing autoimmune liver disease. Some innate lymphocyte populations can also directly mediate liver injury by killing hepatocytes or bile duct cells in murine models of hepatitis, whilst other populations may protect against liver disease. It is likely that innate lymphocyte populations can promote or protect against autoimmune liver disease in humans and that these cells can be targeted therapeutically. Here I review the cellular mechanisms by which hepatic antigen-presenting cells and innate lymphocytes control the balance between immunity, tolerance and autoimmunity in the liver.
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Affiliation(s)
- Derek G Doherty
- Division of Immunology, School of Medicine, Trinity College Dublin, Ireland.
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28
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Kabelitz D, Déchanet-Merville J. Editorial: "Recent Advances in Gamma/Delta T Cell Biology: New Ligands, New Functions, and New Translational Perspectives". Front Immunol 2015; 6:371. [PMID: 26257738 PMCID: PMC4508528 DOI: 10.3389/fimmu.2015.00371] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Accepted: 07/06/2015] [Indexed: 01/12/2023] Open
Affiliation(s)
- Dieter Kabelitz
- Institute of Immunology, University of Kiel , Kiel , Germany
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