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Li W, Zhao X, Ren C, Gao S, Han Q, Lu M, Li X. The therapeutic role of γδT cells in TNBC. Front Immunol 2024; 15:1420107. [PMID: 38933280 PMCID: PMC11199784 DOI: 10.3389/fimmu.2024.1420107] [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: 04/19/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024] Open
Abstract
Triple-negative breast cancer (TNBC) is a subtype of breast cancer that presents significant therapeutic challenges due to the absence of estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) expression. As a result, conventional hormonal and targeted therapies are largely ineffective, underscoring the urgent need for novel treatment strategies. γδT cells, known for their robust anti-tumor properties, show considerable potential in TNBC treatment as they can identify and eliminate tumor cells without reliance on MHC restrictions. These cells demonstrate extensive proliferation both in vitro and in vivo, and can directly target tumors through cytotoxic effects or indirectly by promoting other immune responses. Studies suggest that expansion and adoptive transfer strategies targeting Vδ2 and Vδ1 γδT cell subtypes have shown promise in preclinical TNBC models. This review compiles and discusses the existing literature on the primary subgroups of γδT cells, their roles in cancer therapy, their contributions to tumor cell cytotoxicity and immune modulation, and proposes potential strategies for future γδT cell-based immunotherapies in TNBC.
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Affiliation(s)
- Wenjing Li
- Department of Breast Center, The Second Affiliated Hospital of Shandong First Medical University, Tai’an, Shandong, China
| | - Xian Zhao
- Department of Breast Center, The Second Affiliated Hospital of Shandong First Medical University, Tai’an, Shandong, China
| | - Chuanxin Ren
- Department of The First Clinical Medical School, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Shang Gao
- Department of Breast Center, The Second Affiliated Hospital of Shandong First Medical University, Tai’an, Shandong, China
| | - Qinyu Han
- Department of Breast Center, The Second Affiliated Hospital of Shandong First Medical University, Tai’an, Shandong, China
| | - Min Lu
- Department of Breast Center, The Second Affiliated Hospital of Shandong First Medical University, Tai’an, Shandong, China
| | - Xiangqi Li
- Department of Breast Center, The Second Affiliated Hospital of Shandong First Medical University, Tai’an, Shandong, China
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Reider IE, Lin E, Krouse TE, Parekh NJ, Nelson AM, Norbury CC. γδ T Cells Mediate a Requisite Portion of a Wound Healing Response Triggered by Cutaneous Poxvirus Infection. Viruses 2024; 16:425. [PMID: 38543790 PMCID: PMC10975054 DOI: 10.3390/v16030425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/07/2024] [Accepted: 03/08/2024] [Indexed: 04/01/2024] Open
Abstract
Infection at barrier sites, e.g., skin, activates local immune defenses that limit pathogen spread, while preserving tissue integrity. Phenotypically distinct γδ T cell populations reside in skin, where they shape immunity to cutaneous infection prior to onset of an adaptive immune response by conventional αβ CD4+ (TCD4+) and CD8+ (TCD8+) T cells. To examine the mechanisms used by γδ T cells to control cutaneous virus replication and tissue pathology, we examined γδ T cells after infection with vaccinia virus (VACV). Resident γδ T cells expanded and combined with recruited γδ T cells to control pathology after VACV infection. However, γδ T cells did not play a role in control of local virus replication or blockade of systemic virus spread. We identified a unique wound healing signature that has features common to, but also features that antagonize, the sterile cutaneous wound healing response. Tissue repair generally occurs after clearance of a pathogen, but viral wound healing started prior to the peak of virus replication in the skin. γδ T cells contributed to wound healing through induction of multiple cytokines/growth factors required for efficient wound closure. Therefore, γδ T cells modulate the wound healing response following cutaneous virus infection, maintaining skin barrier function to prevent secondary bacterial infection.
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Affiliation(s)
- Irene E. Reider
- Department of Microbiology & Immunology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Eugene Lin
- Department of Microbiology & Immunology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Tracy E. Krouse
- Department of Microbiology & Immunology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Nikhil J. Parekh
- Department of Microbiology & Immunology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Amanda M. Nelson
- Department of Dermatology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Christopher C. Norbury
- Department of Microbiology & Immunology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
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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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Esteso G, Felgueres MJ, García-Jiménez ÁF, Reyburn-Valés C, Benguría A, Vázquez E, Reyburn HT, Aguiló N, Martín C, Puentes E, Murillo I, Rodríguez E, Valés-Gómez M. BCG-activation of leukocytes is sufficient for the generation of donor-independent innate anti-tumor NK and γδ T-cells that can be further expanded in vitro. Oncoimmunology 2022; 12:2160094. [PMID: 36567803 PMCID: PMC9788708 DOI: 10.1080/2162402x.2022.2160094] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Bacillus Calmette-Guérin (BCG), the nonpathogenic Mycobacterium bovis strain used as tuberculosis vaccine, has been successfully used as treatment for non-muscle invasive bladder cancer for decades, and suggested to potentiate cellular and humoral immune responses. However, the exact mechanism of action is not fully understood. We previously described that BCG mainly activated anti-tumor cytotoxic NK cells with upregulation of CD56 and a CD16+ phenotype. Now, we show that stimulation of human peripheral blood mononuclear cells with iBCG, a preparation based on BCG-Moreau, expands oligoclonal γδ T-cells, with a cytotoxic phenotype, together with anti-tumor CD56high CD16+ NK cells. We have used scRNA-seq, flow cytometry, and functional assays to characterize these BCG-activated γδ T-cells in detail. They had a high IFNγ secretion signature with expression of CD27+ and formed conjugates with bladder cancer cells. BCG-activated γδ T-cells proliferated strongly in response to minimal doses of cytokines and had anti-tumor functions, although not fully based on degranulation. BCG was sufficient to stimulate proliferation of γδ T-cells when cultured with other PBMC; however, BCG alone did not stimulate expansion of purified γδ T-cells. The characterization of these non-donor restricted lymphocyte populations, which can be expanded in vitro, could provide a new approach to prepare cell-based immunotherapy tools.
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Affiliation(s)
- Gloria Esteso
- Department of Immunology and Oncology, National Centre for Biotechnology, Spanish National Research Council, Madrid, Spain
| | - María José Felgueres
- Department of Immunology and Oncology, National Centre for Biotechnology, Spanish National Research Council, Madrid, Spain
| | - Álvaro F. García-Jiménez
- Department of Immunology and Oncology, National Centre for Biotechnology, Spanish National Research Council, Madrid, Spain
| | - Christina Reyburn-Valés
- Department of Immunology and Oncology, National Centre for Biotechnology, Spanish National Research Council, Madrid, Spain
| | - Alberto Benguría
- Servicio de Genómica, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Enrique Vázquez
- Servicio de Genómica, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Hugh T. Reyburn
- Department of Immunology and Oncology, National Centre for Biotechnology, Spanish National Research Council, Madrid, Spain
| | - Nacho Aguiló
- Grupo de Genética de Micobacterias, Departamento de Microbiología y Medicina Preventiva, Facultad de Medicina, Universidad de Zaragoza, IIS-Aragon; Zaragoza, Spain and CIBER Enfermedades Respiratorias, Instituto de Salud Carlos III; Madrid, Spain
| | - Carlos Martín
- Grupo de Genética de Micobacterias, Departamento de Microbiología y Medicina Preventiva, Facultad de Medicina, Universidad de Zaragoza, IIS-Aragon; Zaragoza, Spain and CIBER Enfermedades Respiratorias, Instituto de Salud Carlos III; Madrid, Spain,Servicio de Microbiología, Hospital Universitario Miguel Servet, IIS Aragon; Zaragoza, Spain
| | - Eugenia Puentes
- Clinical Research Department y Research & Development Department, Biofabri, Grupo Zendal, O’Porriño, Pontevedra, Spain
| | - Ingrid Murillo
- Clinical Research Department y Research & Development Department, Biofabri, Grupo Zendal, O’Porriño, Pontevedra, Spain
| | - Esteban Rodríguez
- Clinical Research Department y Research & Development Department, Biofabri, Grupo Zendal, O’Porriño, Pontevedra, Spain
| | - Mar Valés-Gómez
- Department of Immunology and Oncology, National Centre for Biotechnology, Spanish National Research Council, Madrid, Spain,CONTACT Mar Valés-Gómez Department of Immunology and Oncology, National Centre for Biotechnology, Spanish National Research Council, Madrid, Spain
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Gay L, Mezouar S, Cano C, Frohna P, Madakamutil L, Mège JL, Olive D. Role of Vγ9vδ2 T lymphocytes in infectious diseases. Front Immunol 2022; 13:928441. [PMID: 35924233 PMCID: PMC9340263 DOI: 10.3389/fimmu.2022.928441] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 06/27/2022] [Indexed: 12/22/2022] Open
Abstract
The T cell receptor Vγ9Vδ2 T cells bridge innate and adaptive antimicrobial immunity in primates. These Vγ9Vδ2 T cells respond to phosphoantigens (pAgs) present in microbial or eukaryotic cells in a butyrophilin 3A1 (BTN3) and butyrophilin 2A1 (BTN2A1) dependent manner. In humans, the rapid expansion of circulating Vγ9Vδ2 T lymphocytes during several infections as well as their localization at the site of active disease demonstrates their important role in the immune response to infection. However, Vγ9Vδ2 T cell deficiencies have been observed in some infectious diseases such as active tuberculosis and chronic viral infections. In this review, we are providing an overview of the mechanisms of Vγ9Vδ2 T cell-mediated antimicrobial immunity. These cells kill infected cells mainly by releasing lytic mediators and pro-inflammatory cytokines and inducing target cell apoptosis. In addition, the release of chemokines and cytokines allows the recruitment and activation of immune cells, promoting the initiation of the adaptive immune response. Finaly, we also describe potential new therapeutic tools of Vγ9Vδ2 T cell-based immunotherapy that could be applied to emerging infections.
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Affiliation(s)
- Laetitia Gay
- Aix-Marseille Univ, Intitut Recherche pour le Développement (IRT), Assistance Publique Hôpitaux de Marseille (APHM), Microbe, Evolution, Phylogeny, Infection (MEPHI), Marseille, France
- Immunology Department, IHU-Méditerranée Infection, Marseille, France
- ImCheck Therapeutics, Marseille, France
| | - Soraya Mezouar
- Aix-Marseille Univ, Intitut Recherche pour le Développement (IRT), Assistance Publique Hôpitaux de Marseille (APHM), Microbe, Evolution, Phylogeny, Infection (MEPHI), Marseille, France
- Immunology Department, IHU-Méditerranée Infection, Marseille, France
| | | | | | | | - Jean-Louis Mège
- Aix-Marseille Univ, Intitut Recherche pour le Développement (IRT), Assistance Publique Hôpitaux de Marseille (APHM), Microbe, Evolution, Phylogeny, Infection (MEPHI), Marseille, France
- Immunology Department, IHU-Méditerranée Infection, Marseille, France
- Aix-Marseille Univ, APHM, Hôpital de la Conception, Laboratoire d’Immunologie, Marseille, France
| | - Daniel Olive
- Centre pour la Recherche sur le Cancer de Marseille (CRCM), Inserm UMR1068, Centre national de la recherche scientifique (CNRS) UMR7258, Institut Paoli Calmettes, Marseille, France
- *Correspondence: Daniel Olive,
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Cervantes O, Talavera IC, Every E, Coler B, Li M, Li A, Li H, Adams Waldorf K. Role of hormones in the pregnancy and sex-specific outcomes to infections with respiratory viruses. Immunol Rev 2022; 308:123-148. [PMID: 35373371 PMCID: PMC9189035 DOI: 10.1111/imr.13078] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 03/04/2022] [Indexed: 01/13/2023]
Abstract
Pregnant women infected with pathogenic respiratory viruses, such as influenza A viruses (IAV) and coronaviruses, are at higher risk for mortality, hospitalization, preterm birth, and stillbirth. Several factors are likely to contribute to the susceptibility of pregnant individuals to severe lung disease including changes in pulmonary physiology, immune defenses, and effector functions of some immune cells. Pregnancy is also a physiologic state characterized by higher levels of multiple hormones that may impact the effector functions of immune cells, such as progesterone, estrogen, human chorionic gonadotropin, prolactin, and relaxin. Each of these hormones acts to support a tolerogenic immune state of pregnancy, which helps prevent fetal rejection, but may also contribute to an impaired antiviral response. In this review, we address the unique role of adaptive and innate immune cells in the control of pathogenic respiratory viruses and how pregnancy and specific hormones can impact their effector actions. We highlight viruses with sex-specific differences in infection outcomes and why pregnancy hormones may contribute to fetal protection but aid the virus at the expense of the mother's health.
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Affiliation(s)
- Orlando Cervantes
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, United States of America
| | - Irene Cruz Talavera
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Emma Every
- University of Washington School of Medicine, Spokane, Washington, United States of America
| | - Brahm Coler
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, United States of America
- Elson S. Floyd College of Medicine, Washington State University, Spokane, Washington, United States of America
| | - Miranda Li
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, United States of America
- Department of Biological Sciences, Columbia University, New York City, New York, United States of America
| | - Amanda Li
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, United States of America
- Case Western Reserve, Cleveland, Ohio, United States of America
| | - Hanning Li
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, United States of America
| | - Kristina Adams Waldorf
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, United States of America
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Velikkakam T, Gollob KJ, Dutra WO. Double-negative T cells: Setting the stage for disease control or progression. Immunology 2022; 165:371-385. [PMID: 34939192 PMCID: PMC10626195 DOI: 10.1111/imm.13441] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 12/15/2021] [Indexed: 11/30/2022] Open
Abstract
Double-negative (DN) T cells are present at relatively low frequencies in human peripheral blood, and are characterized as expressing the alpha-beta or gamma-delta T-cell receptor (TCR), but not the CD4 nor the CD8 co-receptors. Despite their low frequencies, these cells are potent producers of cytokines and, thus, are key orchestrators of immune responses. DN T cells were initially associated with induction of peripheral immunological tolerance and immunomodulatory activities related to disease prevention. However, other studies demonstrated that these cells can also display effector functions associated with pathology development. This apparent contradiction highlighted the heterogeneity of the DN T-cell population. Here, we review phenotypic and functional characteristics of DN T cells, emphasizing their role in human diseases. The need for developing biomarkers to facilitate the translation of studies from animal models to humans will also be discussed. Finally, we will examine DN T cells as promising therapeutic targets to prevent or inhibit human disease development.
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Affiliation(s)
- Teresiama Velikkakam
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Pós-graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Kenneth J. Gollob
- Hospital Israelita Albert Einsten, São Paulo, Brazil
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais – INCT-DT, Belo Horizonte, Brazil
| | - Walderez Ornelas Dutra
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Pós-graduação em Ciências da Saúde: Infectologia e Medicina Tropical, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais – INCT-DT, Belo Horizonte, Brazil
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Wang X, Xiang Z, Liu Y, Huang C, Pei Y, Wang X, Zhi H, Wong WHS, Wei H, Ng IOL, Lee PPW, Chan GCF, Lau YL, Tu W. Exosomes derived from Vδ2-T cells control Epstein-Barr virus-associated tumors and induce T cell antitumor immunity. Sci Transl Med 2021; 12:12/563/eaaz3426. [PMID: 32998970 DOI: 10.1126/scitranslmed.aaz3426] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 05/07/2020] [Accepted: 06/29/2020] [Indexed: 12/14/2022]
Abstract
Treatment of life-threatening Epstein-Barr virus (EBV)-associated tumors remains a great challenge, especially for patients with relapsed or refractory disease. Here, we found that exosomes derived from phosphoantigen-expanded Vδ2-T cells (Vδ2-T-Exos) contained death-inducing ligands (FasL and TRAIL), an activating receptor for natural killer (NK) cells (NKG2D), immunostimulatory ligands (CD80 and CD86), and antigen-presenting molecules (MHC class I and II). Vδ2-T-Exos targeted and efficiently killed EBV-associated tumor cells through FasL and TRAIL pathways and promoted EBV antigen-specific CD4 and CD8 T cell expansion. Administration of Vδ2-T-Exos effectively controlled EBV-associated tumors in Rag2-/-γc-/- and humanized mice. Because expanding Vδ2-T cells and preparing autologous Vδ2-T-Exos from cancer patients ex vivo in large scale is challenging, we explored the antitumor activity of allogeneic Vδ2-T-Exos in humanized mouse cancer models. Here, we found that allogeneic Vδ2-T-Exos had more effective antitumor activity than autologous Vδ2-T-Exos in humanized mice; the allogeneic Vδ2-T-Exos increased the infiltration of T cells into tumor tissues and induced more robust CD4 and CD8 T cell-mediated antitumor immunity. Compared with exosomes derived from NK cells (NK-Exos) with direct cytotoxic antitumor activity or dendritic cells (DC-Exos) that induced T cell antitumor responses, Vδ2-T-Exos directly killed tumor cells and induced T cell-mediated antitumor response, thus resulting in more effective control of EBV-associated tumors. This study provided proof of concept for the strategy of using Vδ2-T-Exos, especially allogeneic Vδ2-T-Exos, to treat EBV-associated tumors.
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Affiliation(s)
- Xiwei Wang
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China
| | - Zheng Xiang
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China
| | - Yinping Liu
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China
| | - Chunyu Huang
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China
| | - Yujun Pei
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China
| | - Xia Wang
- Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China
| | - Hui Zhi
- Biostatistics and Clinical Research Methodology Unit, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China
| | - Wilfred Hing-Sang Wong
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China
| | - Haiming Wei
- Institute of Immunology, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Irene Oi-Lin Ng
- Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China
| | - Pamela Pui-Wah Lee
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China
| | - Godfrey Chi-Fung Chan
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China
| | - Yu-Lung Lau
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China
| | - Wenwei Tu
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China.
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Gogoi D, Borkakoty B, Biswas D, Yadav K, Patel V. Characteristics of Circulatory γδ T cells in Patients with Symptomatic Chronic Hepatitis B Infection. Viral Immunol 2021; 34:483-490. [PMID: 34096794 DOI: 10.1089/vim.2020.0314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Hepatitis B is a viral infection that can cause serious liver disease. Chronic hepatitis B (CHB) infection places individuals at higher risk of developing cirrhosis of the liver and hepatocellular cancer. Immune dysfunction, including altered distribution and functional status of T cell immunity, is a contributor to hepatitis B virus (HBV) pathogenesis. In this study, we examined the distribution of circulating γδ T cell subpopulations and levels of cell surface expression of suppressive markers on γδ T cells in individuals with CHB infection and clinical liver disease. A significantly higher proportion of terminally differentiated (TEMRA) (CD27-CD45RA+) γδ T cells along with significantly lower percentages of central memory (CD27+CD45RA-) and effector memory (CD27-CD45RA-) γδ T cells were observed in peripheral blood of these individuals. The expression of exhaustion markers-Tim-3 and Lag-3 was elevated in γδ T cells from CHB-infected individuals compared with healthy controls (HC) and blockade of these exhaustion markers resulted in restoration of interferon gamma (IFN-γ) secretion by γδ T cells. In addition, γδ T cells from CHB patients expressed increased levels of CD69, another important regulator of immune responses. Together, these results suggest that CHB patients with clinical sign of liver disease have TEMRA γδ T cells with a potentially exhausted phenotype that may in turn impair their immunoregulatory role and facilitate pathogenesis of CHB disease.
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Affiliation(s)
- Dimpu Gogoi
- Department of Biochemistry and Virology, National Institute for Research in Reproductive Health, Indian Council of Medical Research, Mumbai, India.,Virology Section, Regional Medical Research Centre, Northeast Region, Indian Council of Medical Research, Dibrugarh, India
| | - Biswajyoti Borkakoty
- Virology Section, Regional Medical Research Centre, Northeast Region, Indian Council of Medical Research, Dibrugarh, India
| | - Dipankar Biswas
- Virology Section, Regional Medical Research Centre, Northeast Region, Indian Council of Medical Research, Dibrugarh, India
| | - Kaushal Yadav
- Virology Section, Regional Medical Research Centre, Northeast Region, Indian Council of Medical Research, Dibrugarh, India
| | - Vainav Patel
- Department of Biochemistry and Virology, National Institute for Research in Reproductive Health, Indian Council of Medical Research, Mumbai, India
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Caron J, Ridgley LA, Bodman-Smith M. How to Train Your Dragon: Harnessing Gamma Delta T Cells Antiviral Functions and Trained Immunity in a Pandemic Era. Front Immunol 2021; 12:666983. [PMID: 33854516 PMCID: PMC8039298 DOI: 10.3389/fimmu.2021.666983] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 03/12/2021] [Indexed: 12/23/2022] Open
Abstract
The emergence of viruses with pandemic potential such as the SARS-CoV-2 coronavirus causing COVID-19 poses a global health challenge. There is remarkable progress in vaccine technology in response to this threat, but their design often overlooks the innate arm of immunity. Gamma Delta (γδ) T cells are a subset of T cells with unique features that gives them a key role in the innate immune response to a variety of homeostatic alterations, from cancer to microbial infections. In the context of viral infection, a growing body of evidence shows that γδ T cells are particularly equipped for early virus detection, which triggers their subsequent activation, expansion and the fast deployment of antiviral functions such as direct cytotoxic pathways, secretion of cytokines, recruitment and activation of other immune cells and mobilization of a trained immunity memory program. As such, γδ T cells represent an attractive target to stimulate for a rapid and effective resolution of viral infections. Here, we review the known aspects of γδ T cells that make them crucial component of the immune response to viruses, and the ways that their antiviral potential can be harnessed to prevent or treat viral infection.
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Affiliation(s)
- Jonathan Caron
- Infection and Immunity Research Institute, St. George's University of London, London, United Kingdom
| | - Laura Alice Ridgley
- Infection and Immunity Research Institute, St. George's University of London, London, United Kingdom
| | - Mark Bodman-Smith
- Infection and Immunity Research Institute, St. George's University of London, London, United Kingdom
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11
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Wang X, Lin X, Zheng Z, Lu B, Wang J, Tan AHM, Zhao M, Loh JT, Ng SW, Chen Q, Xiao F, Huang E, Ko KH, Huang Z, Li J, Kok KH, Lu G, Liu X, Lam KP, Liu W, Zhang Y, Yuen KY, Mak TW, Lu L. Host-derived lipids orchestrate pulmonary γδ T cell response to provide early protection against influenza virus infection. Nat Commun 2021; 12:1914. [PMID: 33772013 PMCID: PMC7997921 DOI: 10.1038/s41467-021-22242-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 03/06/2021] [Indexed: 01/01/2023] Open
Abstract
Innate immunity is important for host defense by eliciting rapid anti-viral responses and bridging adaptive immunity. Here, we show that endogenous lipids released from virus-infected host cells activate lung γδ T cells to produce interleukin 17 A (IL-17A) for early protection against H1N1 influenza infection. During infection, the lung γδ T cell pool is constantly supplemented by thymic output, with recent emigrants infiltrating into the lung parenchyma and airway to acquire tissue-resident feature. Single-cell studies identify IL-17A-producing γδ T (Tγδ17) cells with a phenotype of TCRγδhiCD3hiAQP3hiCXCR6hi in both infected mice and patients with pneumonia. Mechanistically, host cell-released lipids during viral infection are presented by lung infiltrating CD1d+ B-1a cells to activate IL-17A production in γδ T cells via γδTCR-mediated IRF4-dependent transcription. Reduced IL-17A production in γδ T cells is detected in mice either lacking B-1a cells or with ablated CD1d in B cells. Our findings identify a local host-immune crosstalk and define important cellular and molecular mediators for early innate defense against lung viral infection.
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MESH Headings
- Animals
- Antigens, CD1d/immunology
- Antigens, CD1d/metabolism
- Female
- Host-Pathogen Interactions/immunology
- Humans
- Immunity, Innate/immunology
- Influenza A Virus, H1N1 Subtype/immunology
- Influenza A Virus, H1N1 Subtype/physiology
- Influenza, Human/immunology
- Influenza, Human/metabolism
- Influenza, Human/virology
- Interferon Regulatory Factors/immunology
- Interferon Regulatory Factors/metabolism
- Interleukin-17/immunology
- Interleukin-17/metabolism
- Lipids/immunology
- Lung/immunology
- Lung/metabolism
- Lung/virology
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Transgenic
- Orthomyxoviridae Infections/immunology
- Orthomyxoviridae Infections/metabolism
- Orthomyxoviridae Infections/virology
- Receptors, Antigen, T-Cell, gamma-delta/immunology
- Receptors, Antigen, T-Cell, gamma-delta/metabolism
- Mice
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Affiliation(s)
- Xiaohui Wang
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong, China.
- Department of Microbiology, State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Hong Kong, China.
| | - Xiang Lin
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong, China
| | - Zihan Zheng
- Chongqing International Institute for Immunology, Chongqing, China
| | - Bingtai Lu
- Department of Respiratory Medicine and Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jun Wang
- Department of Respiratory Medicine and Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Andy Hee-Meng Tan
- Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore, Singapore
| | - Meng Zhao
- Ministry of Education Key Laboratory of Protein Sciences, Center for Life Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Institute for Immunology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Jia Tong Loh
- Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore, Singapore
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore, Singapore
| | - Sze Wai Ng
- Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore, Singapore
| | - Qian Chen
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong, China
| | - Fan Xiao
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong, China
| | - Enyu Huang
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong, China
| | - King-Hung Ko
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong, China
| | - Zhong Huang
- Department of Pathogen Biology and Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Jingyi Li
- Chongqing International Institute for Immunology, Chongqing, China
| | - Kin-Hang Kok
- Department of Microbiology, State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Hong Kong, China
| | - Gen Lu
- Department of Respiratory Medicine and Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Xiaohui Liu
- National Protein Science Facility, Tsinghua University, Beijing, China
| | - Kong-Peng Lam
- Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore, Singapore
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore, Singapore
| | - Wanli Liu
- Ministry of Education Key Laboratory of Protein Sciences, Center for Life Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Institute for Immunology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Yuxia Zhang
- Department of Respiratory Medicine and Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Kwok-Yung Yuen
- Department of Microbiology, State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Hong Kong, China
| | - Tak Wah Mak
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong, China
- The Campbell Family Institute for Breast Cancer Research at Princess Margaret Cancer Centre, Ontario Cancer Institute, University Health Network, Toronto, ON, Canada
| | - Liwei Lu
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong, China.
- Chongqing International Institute for Immunology, Chongqing, China.
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12
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Huang C, Xiang Z, Zhang Y, Li Y, Xu J, Zhang H, Zeng Y, Tu W. NKG2D as a Cell Surface Marker on γδ-T Cells for Predicting Pregnancy Outcomes in Patients With Unexplained Repeated Implantation Failure. Front Immunol 2021; 12:631077. [PMID: 33777016 PMCID: PMC7988228 DOI: 10.3389/fimmu.2021.631077] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 02/16/2021] [Indexed: 02/04/2023] Open
Abstract
Maternal immune tolerance to semi-allogeneic fetus is essential for a successful implantation and pregnancy. Growing evidence indicated that low cytotoxic activity of γδ-T cells, which is mediated by activation and inhibitory receptors, is important for establishment of maternal immune tolerant microenvironment. However, the correlation between receptors on peripheral blood γδ-T cells, such as NKG2D, CD158a, and CD158b, and pregnancy outcome in patients with unexplained repeated implantation failure (uRIF) remains unclear. In this study, the association between the expression level of these receptors and pregnancy outcome in patients with uRIF was investigated. Thirty-eight women with uRIF were enrolled and divided into two groups: successful group and failed group, according to the pregnancy outcome on different gestational periods. The percentage of NKG2D+ γδ-T cells in lymphocytes was significantly higher in uRIF patients who had failed clinical pregnancy in subsequent cycle, compared with those who had successful clinical pregnancy. However, there were no differences about the frequencies of CD158a+ and CD158b+ γδ-T cells between the successful and failed groups. The receiver operating characteristic curve exhibited that the optimal cut-off value of NKG2D+ γδ-T cells was 3.24%, with 92.3% sensitivity and 66.7% specificity in predicting clinical pregnancy failure in uRIF patients. The patients with uRIF were further divided into two groups, group 1 (NKG2D+ γδ-T cells <3.24%) and group 2 (NKG2D+ γδ-T cells ≥3.24%), based on the cut-off value. The live birth rate of patients in the group 1 and group 2 were 61.5 and 28.0%, respectively. Kaplan-Meier survival curve further suggested that the frequency of NKG2D+ γδ-T cells in lymphocytes negatively correlated with live birth rate in patients with uRIF. In conclusion, our study demonstrated that the frequency of peripheral blood NKG2D+ γδ-T cells among lymphocytes is a potential predictor for pregnancy outcome in uRIF patients.
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Affiliation(s)
- Chunyu Huang
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Zheng Xiang
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Yongnu Zhang
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproduction and Genetics, Fertility Center, Shenzhen Zhongshan Urology Hospital, Shenzhen, China
| | - Yuye Li
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproduction and Genetics, Fertility Center, Shenzhen Zhongshan Urology Hospital, Shenzhen, China
| | - Jian Xu
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproduction and Genetics, Fertility Center, Shenzhen Zhongshan Urology Hospital, Shenzhen, China
| | - Hongzhan Zhang
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproduction and Genetics, Fertility Center, Shenzhen Zhongshan Urology Hospital, Shenzhen, China
| | - Yong Zeng
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproduction and Genetics, Fertility Center, Shenzhen Zhongshan Urology Hospital, Shenzhen, China
| | - Wenwei Tu
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
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13
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Li Y, Li G, Zhang J, Wu X, Chen X. The Dual Roles of Human γδ T Cells: Anti-Tumor or Tumor-Promoting. Front Immunol 2021; 11:619954. [PMID: 33664732 PMCID: PMC7921733 DOI: 10.3389/fimmu.2020.619954] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 12/29/2020] [Indexed: 12/24/2022] Open
Abstract
γδ T cells are the unique T cell subgroup with their T cell receptors composed of γ chain and δ chain. Unlike αβ T cells, γδ T cells are non-MHC-restricted in recognizing tumor antigens, and therefore defined as innate immune cells. Activated γδ T cells can promote the anti-tumor function of adaptive immune cells. They are considered as a bridge between adaptive immunity and innate immunity. However, several other studies have shown that γδ T cells can also promote tumor progression by inhibiting anti-tumor response. Therefore, γδ T cells may have both anti-tumor and tumor-promoting effects. In order to clarify this contradiction, in this review, we summarized the functions of the main subsets of human γδ T cells in how they exhibit their respective anti-tumor or pro-tumor effects in cancer. Then, we reviewed recent γδ T cell-based anti-tumor immunotherapy. Finally, we summarized the existing problems and prospect of this immunotherapy.
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Affiliation(s)
- Yang Li
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Gen Li
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jian Zhang
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiaoli Wu
- School of Life Sciences, Tian Jin University, Tian Jin, China
| | - Xi Chen
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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14
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Clark BL, Thomas PG. A Cell for the Ages: Human γδ T Cells across the Lifespan. Int J Mol Sci 2020; 21:E8903. [PMID: 33255339 PMCID: PMC7727649 DOI: 10.3390/ijms21238903] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/18/2020] [Accepted: 11/23/2020] [Indexed: 12/19/2022] Open
Abstract
The complexity of the human immune system is exacerbated by age-related changes to immune cell functionality. Many of these age-related effects remain undescribed or driven by mechanisms that are poorly understood. γδ T cells, while considered an adaptive subset based on immunological ontogeny, retain both innate-like and adaptive-like characteristics. This T cell population is small but mighty, and has been implicated in both homeostatic and disease-induced immunity within tissues and throughout the periphery. In this review, we outline what is known about the effect of age on human peripheral γδ T cells, and call attention to areas of the field where further research is needed.
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Affiliation(s)
- Brandi L. Clark
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA;
- Integrated Biomedical Sciences Program, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Paul G. Thomas
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA;
- Integrated Biomedical Sciences Program, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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15
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Sabbaghi A, Miri SM, Keshavarz M, Mahooti M, Zebardast A, Ghaemi A. Role of γδ T cells in controlling viral infections with a focus on influenza virus: implications for designing novel therapeutic approaches. Virol J 2020; 17:174. [PMID: 33183352 PMCID: PMC7659406 DOI: 10.1186/s12985-020-01449-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 11/05/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Influenza virus infection is among the most detrimental threats to the health of humans and some animals, infecting millions of people annually all around the world and in many thousands of cases giving rise to pneumonia and death. All those health crises happen despite previous and recent developments in anti-influenza vaccination, suggesting the need for employing more sophisticated methods to control this malign infection. Main body The innate immunity modules are at the forefront of combating against influenza infection in the respiratory tract, among which, innate T cells, particularly gamma-delta (γδ) T cells, play a critical role in filling the gap needed for adaptive immune cells maturation, linking the innate and adaptive immunity together. Upon infection with influenza virus, production of cytokines and chemokines including CCL3, CCL4, and CCL5 from respiratory epithelium recruits γδ T cells at the site of infection in a CCR5 receptor-dependent fashion. Next, γδ T cells become activated in response to influenza virus infection and produce large amounts of proinflammatory cytokines, especially IL-17A. Regardless of γδ T cells' roles in triggering the adaptive arm of the immune system, they also protect the respiratory epithelium by cytolytic and non-cytolytic antiviral mechanisms, as well as by enhancing neutrophils and natural killer cells recruitment to the infection site. CONCLUSION In this review, we explored varied strategies of γδ T cells in defense to influenza virus infection and how they can potentially provide balanced protective immune responses against infected cells. The results may provide a potential window for the incorporation of intact or engineered γδ T cells for developing novel antiviral approaches or for immunotherapeutic purposes.
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Affiliation(s)
- Ailar Sabbaghi
- Department of Influenza and Other Respiratory Viruses, Pasteur Institute of Iran, P.O. Box 1316943551, Tehran, Iran
| | - Seyed Mohammad Miri
- Department of Influenza and Other Respiratory Viruses, Pasteur Institute of Iran, P.O. Box 1316943551, Tehran, Iran
| | - Mohsen Keshavarz
- The Persian Gulf Tropical Medicine Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Mehran Mahooti
- Department of Influenza and Other Respiratory Viruses, Pasteur Institute of Iran, P.O. Box 1316943551, Tehran, Iran
| | - Arghavan Zebardast
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Ghaemi
- Department of Influenza and Other Respiratory Viruses, Pasteur Institute of Iran, P.O. Box 1316943551, Tehran, Iran.
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16
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CD137 costimulation enhances the antiviral activity of Vγ9Vδ2-T cells against influenza virus. Signal Transduct Target Ther 2020; 5:74. [PMID: 32488072 PMCID: PMC7266814 DOI: 10.1038/s41392-020-0174-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 04/14/2020] [Accepted: 04/14/2020] [Indexed: 01/18/2023] Open
Abstract
Influenza epidemics and pandemics are constant threats to global public health. Although strategies including vaccines and antiviral drugs have achieved great advances in controlling influenza virus infection, the efficacy of these strategies is limited by the highly frequent mutations in the viral genome and the emergence of drug-resistant strains. Our previous study indicated that boosting the immunity of human Vγ9Vδ2-T cells with the phosphoantigen pamidronate could be a therapeutic strategy to treat seasonal and avian influenza virus infections. However, one notable drawback of γδ-T cell-based immunotherapy is the rapid exhaustion of proliferation and effector responses due to repeated treatments with phosphoantigens. Here, we found that the expression of CD137 was inducible in Vγ9Vδ2-T cells following antigenic stimulation. CD137+ Vγ9Vδ2-T cells displayed more potent antiviral activity against influenza virus than their CD137− counterparts in vitro and in Rag2-/- γc-/- mice. We further demonstrated that CD137 costimulation was essential for Vγ9Vδ2-T cell activation, proliferation, survival and effector functions. In humanized mice reconstituted with human peripheral blood mononuclear cells, CD137 costimulation with a recombinant human CD137L protein boosted the therapeutic effects of pamidronate against influenza virus. Our study provides a novel strategy of targeting CD137 to improve the efficacy of Vγ9Vδ2-T cell-based immunotherapy.
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17
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Liu Y, Zhang C. The Role of Human γδ T Cells in Anti-Tumor Immunity and Their Potential for Cancer Immunotherapy. Cells 2020; 9:cells9051206. [PMID: 32413966 PMCID: PMC7290839 DOI: 10.3390/cells9051206] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 05/06/2020] [Accepted: 05/09/2020] [Indexed: 12/20/2022] Open
Abstract
γδ T cells are a distinct subset of T cells whose T cell receptors consist of γ chains and δ chains, different from conventional αβ T cells. γδ T cells are considered as a member of the innate immunity because of their non-MHC restricted antigen recognition, rapid response to invading pathogens and sense early changes of malignant cells. Upon activation, they can further promote the activation of adaptive immune cells, such as T cells and B cells, by secreting various cytokines. Thus, γδ T cells are regarded as a bridge between innate immunity and acquired immunity. γδ T cells are involved in a variety of immune response processes, including immune defense and immune surveillance against infection and tumorigenesis. γδ T cells recognize multiple tumor-associated antigens or molecules in T cell receptors (TCRs)-dependent and natural killer cell receptors (NKRs)-dependent ways. γδ T cells not only display a direct killing capacity on a variety of tumors, but also exert anti-tumor immune responses indirectly by facilitating the function of other immune cells, such as dendritic cells (DCs), B cells and CD8+ T cells. In this review, we summarize the major subpopulations, the tumor recognition mechanisms, and the anti-tumor effects of human γδ T cells, particularly the potential of γδ T cells for cancer immunotherapy.
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Affiliation(s)
| | - Cai Zhang
- Correspondence: ; Tel.: +86-531-8838-3782
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18
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Ghosh A, Mondal RK, Romani S, Bagchi S, Cairo C, Pauza CD, Kottilil S, Poonia B. Persistent gamma delta T-cell dysfunction in chronic HCV infection despite direct-acting antiviral therapy induced cure. J Viral Hepat 2019; 26:1105-1116. [PMID: 31074195 PMCID: PMC7152509 DOI: 10.1111/jvh.13121] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 03/18/2019] [Accepted: 04/16/2019] [Indexed: 12/12/2022]
Abstract
Immune dysfunction is a hallmark of chronic HCV infection and viral clearance with direct antivirals recover some of these immune defects. TCRVγ9Vδ2 T-cell dysfunction in treated HCV patients however is not well studied and was the subject of this investigation. Peripheral blood cells from patients who had achieved sustained virologic response (SVR) or those who had relapsed after interferon-free therapy were phenotyped using flow cytometry. Functional potential of Vγ9Vδ2 T cells was tested by measuring proliferation in response to aminobisphosphonate zoledronic acid, and cytotoxicity against HepG2 hepatoma cell line. TCR sequencing was performed to analyse impact of HCV infection on Vδ2 T-cell repertoire. Vγ9Vδ2 cells from patients were activated and therapy resulted in reduction of CD38 expression on these cells in SVR group. Relapsed patients had Vδ2 cells with persistently activated and terminally differentiated cytotoxic phenotype (CD38+ CD45RA+ CD27- CD107a+ ). Irrespective of outcome with therapy, majority of patients had persistently poor Vδ2 T-cell proliferative response to zoledronate along with lower expression of CD56, which identifies anti-tumour cytotoxic subset, relative to healthy controls. There was no association between the number of antigen reactive Vγ2-Jγ1.2 TCR rearrangements at baseline and levels of proliferation indicating nonresponse to zoledronate is not due to depletion of phosphoantigen responding chains. Thus, HCV infection results in circulating Vγ9Vδ2 T cells with a phenotype equipped for immediate effector function but poor cytokine response and expansion in response to antigen, a functional defect that may have implications for susceptibility for carcinogenesis despite HCV cure.
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Affiliation(s)
- Alip Ghosh
- Institute of Human Virology, University of Maryland School of Medicine
| | - Rajiv K Mondal
- Institute of Human Virology, University of Maryland School of Medicine
| | - Sara Romani
- Institute of Human Virology, University of Maryland School of Medicine
| | - Shashwatee Bagchi
- Institute of Human Virology, University of Maryland School of Medicine
| | - Cristiana Cairo
- Institute of Human Virology, University of Maryland School of Medicine
| | - C David Pauza
- American Gene Technologies, Rockville, Maryland 20850
| | | | - Bhawna Poonia
- Institute of Human Virology, University of Maryland School of Medicine
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19
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Girard P, Charles J, Cluzel C, Degeorges E, Manches O, Plumas J, De Fraipont F, Leccia MT, Mouret S, Chaperot L, Aspord C. The features of circulating and tumor-infiltrating γδ T cells in melanoma patients display critical perturbations with prognostic impact on clinical outcome. Oncoimmunology 2019; 8:1601483. [PMID: 31413911 DOI: 10.1080/2162402x.2019.1601483] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 03/18/2019] [Accepted: 03/22/2019] [Indexed: 02/08/2023] Open
Abstract
γδT cells hold a pivotal role in tumor immunosurveillance through their prompt activation and cytokine secretion, their ability to kill tumor cells in an Human Leukocyte Antigen (HLA)-unrestricted manner, and their combination of features of both innate and adaptive immunity. These unique properties and functional plasticity render them very attractive both as targets and vectors for cancer immunotherapy. Yet, these potent and fascinating antitumor effectors have not been extensively explored in melanoma. We provided here a detailed investigation of the phenotypic and functional properties of circulating and tumor-infiltrating γδT cells in melanoma patients, and their impact on clinical evolution. High proportions of circulating- and tumor-infiltrating γδT and δ2+ subset were associated with better clinical outcome. We reported however that circulating and tumor-infiltrating γδT cells from melanoma patients displayed an altered expression of NCR, KIR, and immune checkpoints, and identified NKp44, PD1, 41BB/41BBL, TIM3, and LAG3 as crucial checkpoints allowing immune escape and tumor progression. Notably, melanoma drastically impaired the ability of γδT cells to exhibit activation molecules, secrete cytokines, and display cytotoxicity toward melanoma in response to stimulation with phosphoantigens. It drove them toward regulatory and Th17 profiles associated with poor clinical outcomes. Our study highlights that melanoma hijacked γδT cells to escape from immune control, and revealed that circulating and tumor-infiltrating γδT cell features are promising potential biomarkers of clinical evolution. Such understanding of the physiopathology of γδT cells may help designing new therapeutic approaches exploiting the antitumor potential of γδT cells while counteracting their skewing by tumors to improve patient outcomes.
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Affiliation(s)
- Pauline Girard
- Etablissement Français du Sang Auvergne Rhone-Alpes, R&D-Laboratory, Grenoble, France.,University Grenoble Alpes, EMR EFS-UGA-INSERM U1209- CNRS, Immunobiology & Immunotherapy of Chronic Diseases, Grenoble, France
| | - Julie Charles
- University Grenoble Alpes, EMR EFS-UGA-INSERM U1209- CNRS, Immunobiology & Immunotherapy of Chronic Diseases, Grenoble, France.,Dermatology clinic, Grenoble University Hospital, Grenoble, France
| | - Camille Cluzel
- Etablissement Français du Sang Auvergne Rhone-Alpes, R&D-Laboratory, Grenoble, France.,University Grenoble Alpes, EMR EFS-UGA-INSERM U1209- CNRS, Immunobiology & Immunotherapy of Chronic Diseases, Grenoble, France
| | - Emmanuelle Degeorges
- Etablissement Français du Sang Auvergne Rhone-Alpes, R&D-Laboratory, Grenoble, France.,University Grenoble Alpes, EMR EFS-UGA-INSERM U1209- CNRS, Immunobiology & Immunotherapy of Chronic Diseases, Grenoble, France
| | - Olivier Manches
- Etablissement Français du Sang Auvergne Rhone-Alpes, R&D-Laboratory, Grenoble, France.,University Grenoble Alpes, EMR EFS-UGA-INSERM U1209- CNRS, Immunobiology & Immunotherapy of Chronic Diseases, Grenoble, France
| | - Joel Plumas
- Etablissement Français du Sang Auvergne Rhone-Alpes, R&D-Laboratory, Grenoble, France.,University Grenoble Alpes, EMR EFS-UGA-INSERM U1209- CNRS, Immunobiology & Immunotherapy of Chronic Diseases, Grenoble, France.,pDCline Pharma, Grenoble, France
| | - Florence De Fraipont
- University Grenoble Alpes, EMR EFS-UGA-INSERM U1209- CNRS, Immunobiology & Immunotherapy of Chronic Diseases, Grenoble, France.,Department of Biochemistry of Cancers and Biotherapies, Grenoble University Hospital, Grenoble, France
| | - Marie-Therese Leccia
- University Grenoble Alpes, EMR EFS-UGA-INSERM U1209- CNRS, Immunobiology & Immunotherapy of Chronic Diseases, Grenoble, France.,Dermatology clinic, Grenoble University Hospital, Grenoble, France
| | - Stephane Mouret
- University Grenoble Alpes, EMR EFS-UGA-INSERM U1209- CNRS, Immunobiology & Immunotherapy of Chronic Diseases, Grenoble, France.,Dermatology clinic, Grenoble University Hospital, Grenoble, France
| | - Laurence Chaperot
- Etablissement Français du Sang Auvergne Rhone-Alpes, R&D-Laboratory, Grenoble, France.,University Grenoble Alpes, EMR EFS-UGA-INSERM U1209- CNRS, Immunobiology & Immunotherapy of Chronic Diseases, Grenoble, France
| | - Caroline Aspord
- Etablissement Français du Sang Auvergne Rhone-Alpes, R&D-Laboratory, Grenoble, France.,University Grenoble Alpes, EMR EFS-UGA-INSERM U1209- CNRS, Immunobiology & Immunotherapy of Chronic Diseases, Grenoble, France
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20
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Bhat J, Dubin S, Dananberg A, Quabius ES, Fritsch J, Dowds CM, Saxena A, Chitadze G, Lettau M, Kabelitz D. Histone Deacetylase Inhibitor Modulates NKG2D Receptor Expression and Memory Phenotype of Human Gamma/Delta T Cells Upon Interaction With Tumor Cells. Front Immunol 2019; 10:569. [PMID: 30972064 PMCID: PMC6445873 DOI: 10.3389/fimmu.2019.00569] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 03/04/2019] [Indexed: 12/31/2022] Open
Abstract
The functional plasticity and anti-tumor potential of human γδ T cells have been widely studied. However, the epigenetic regulation of γδ T-cell/tumor cell interactions has been poorly investigated. In the present study, we show that treatment with the histone deacetylase inhibitor Valproic acid (VPA) significantly enhanced the expression and/or release of the NKG2D ligands MICA, MICB and ULBP-2, but not ULBP-1 in the pancreatic carcinoma cell line Panc89 and the prostate carcinoma cell line PC-3. Under in vitro tumor co-culture conditions, the expression of full length and the truncated form of the NKG2D receptor in γδ T cells was significantly downregulated. Furthermore, using a newly established flow cytometry-based method to analyze histone acetylation (H3K9ac) in γδ T cells, we showed constitutive H3K9aclow and inducible H3K9achigh expression in Vδ2 T cells. The detailed analysis of H3K9aclow Vδ2 T cells revealed a significant reversion of TEMRA to TEM phenotype during in vitro co-culture with pancreatic ductal adenocarcinoma cells. Our study uncovers novel mechanisms of how epigenetic modifiers modulate γδ T-cell differentiation during interaction with tumor cells. This information is important when considering combination therapy of VPA with the γδ T-cell-based immunotherapy for the treatment of certain types of cancer.
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Affiliation(s)
- Jaydeep Bhat
- Institute of Immunology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Samuel Dubin
- Institute of Immunology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Alexandra Dananberg
- Institute of Immunology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Elgar Susanne Quabius
- Institute of Immunology, University Hospital Schleswig-Holstein, Kiel, Germany
- Department of Oto-Rhino-Laryngology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Juergen Fritsch
- Institute of Immunology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - C. Marie Dowds
- Institute of Immunology, University Hospital Schleswig-Holstein, Kiel, Germany
- Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany
| | - Ankit Saxena
- National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, United States
| | - Guranda Chitadze
- Institute of Immunology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Marcus Lettau
- Institute of Immunology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Dieter Kabelitz
- Institute of Immunology, University Hospital Schleswig-Holstein, Kiel, Germany
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21
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Denney L, Ho LP. The role of respiratory epithelium in host defence against influenza virus infection. Biomed J 2018; 41:218-233. [PMID: 30348265 PMCID: PMC6197993 DOI: 10.1016/j.bj.2018.08.004] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 08/03/2018] [Accepted: 08/03/2018] [Indexed: 12/18/2022] Open
Abstract
The respiratory epithelium is the major interface between the environment and the host. Sophisticated barrier, sensing, anti-microbial and immune regulatory mechanisms have evolved to help maintain homeostasis and to defend the lung against foreign substances and pathogens. During influenza virus infection, these specialised structural cells and populations of resident immune cells come together to mount the first response to the virus, one which would play a significant role in the immediate and long term outcome of the infection. In this review, we focus on the immune defence machinery of the respiratory epithelium and briefly explore how it repairs and regenerates after infection.
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Affiliation(s)
- Laura Denney
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Ling-Pei Ho
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK.
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22
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Damani-Yokota P, Telfer JC, Baldwin CL. Variegated Transcription of the WC1 Hybrid PRR/Co-Receptor Genes by Individual γδ T Cells and Correlation With Pathogen Responsiveness. Front Immunol 2018; 9:717. [PMID: 29867919 PMCID: PMC5949365 DOI: 10.3389/fimmu.2018.00717] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 03/22/2018] [Indexed: 01/29/2023] Open
Abstract
γδ T cells have broad reactivity and actively participate in protective immunity against tumors and infectious disease-causing organisms. In γδ-high species such as ruminants and other artiodactyls many γδ T cells bear the lineage-specific markers known as WC1. WC1 molecules are scavenger receptors coded for by a multigenic array and are closely related to SCART found on murine γδ T cells and CD163 found on a variety of cells. We have previously shown that WC1 molecules are hybrid pattern recognition receptors thereby binding pathogens as well as signaling co-receptors for the γδ T cell receptor. WC1+ γδ T cells can be divided into two major subpopulations differentiated by the WC1 genes they express and the pathogens to which they respond. Therefore, we hypothesize that optimal γδ T cell responses are contingent on pathogen binding to WC1 molecules, especially since we have shown that silencing WC1 results in an inability of γδ T cells from primed animals to respond to the pathogen Leptospira, a model system we have employed extensively. Despite this knowledge about the crucial role WC1 plays in γδ T cell biology, the pattern of WC1 gene expression by individual γδ T cells was not known but is critical to devise methods to engage γδ T cells for responses to specific pathogens. To address this gap, we generated 78 γδ T cell clones. qRT-PCR evaluation showed that approximately 75% of the clones had one to three WC1 genes transcribed but up to six per cell occurred. The co-transcription of WC1 genes by clones showed many combinations and some WC1 genes were transcribed by both subpopulations although there were differences in the overall pattern of WC1 genes transcription. Despite this overlap, Leptospira-responsive WC1+ memory γδ T cell clones were shown to have a significantly higher propensity to express WC1 molecules that are known to bind to the pathogen.
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Affiliation(s)
- Payal Damani-Yokota
- Program in Molecular and Cellular Biology, University of Massachusetts, Amherst, MA, United States
| | - Janice C Telfer
- Program in Molecular and Cellular Biology, University of Massachusetts, Amherst, MA, United States.,Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, United States
| | - Cynthia L Baldwin
- Program in Molecular and Cellular Biology, University of Massachusetts, Amherst, MA, United States.,Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, United States
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23
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Mamedov MR, Scholzen A, Nair RV, Cumnock K, Kenkel JA, Oliveira JHM, Trujillo DL, Saligrama N, Zhang Y, Rubelt F, Schneider DS, Chien YH, Sauerwein RW, Davis MM. A Macrophage Colony-Stimulating-Factor-Producing γδ T Cell Subset Prevents Malarial Parasitemic Recurrence. Immunity 2018; 48:350-363.e7. [PMID: 29426701 DOI: 10.1016/j.immuni.2018.01.009] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 10/16/2017] [Accepted: 01/10/2018] [Indexed: 12/31/2022]
Abstract
Despite evidence that γδ T cells play an important role during malaria, their precise role remains unclear. During murine malaria induced by Plasmodium chabaudi infection and in human P. falciparum infection, we found that γδ T cells expanded rapidly after resolution of acute parasitemia, in contrast to αβ T cells that expanded at the acute stage and then declined. Single-cell sequencing showed that TRAV15N-1 (Vδ6.3) γδ T cells were clonally expanded in mice and had convergent complementarity-determining region 3 sequences. These γδ T cells expressed specific cytokines, M-CSF, CCL5, CCL3, which are known to act on myeloid cells, indicating that this γδ T cell subset might have distinct functions. Both γδ T cells and M-CSF were necessary for preventing parasitemic recurrence. These findings point to an M-CSF-producing γδ T cell subset that fulfills a specialized protective role in the later stage of malaria infection when αβ T cells have declined.
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Affiliation(s)
- Murad R Mamedov
- Program in Immunology, Stanford University, Stanford, CA 94305, USA; Institute for Immunity, Transplantation and Infection, Stanford University, Stanford, CA 94305, USA
| | - Anja Scholzen
- Department of Medical Microbiology, Radboud University Medical Center, 6500 HB, Nijmegen, the Netherlands; Innatoss Laboratories B.V., 5349 AB Oss, the Netherlands
| | - Ramesh V Nair
- Department of Genetics, Stanford University, Stanford, CA 94305, USA
| | - Katherine Cumnock
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA
| | - Justin A Kenkel
- Department of Pathology, Stanford University, Stanford, CA 94305, USA
| | - Jose Henrique M Oliveira
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA; Department of Microbiology, Immunology and Parasitology, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, Brazil
| | - Damian L Trujillo
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA; Aduro Biotech, Inc., Berkeley, CA 94710, USA
| | - Naresha Saligrama
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA
| | - Yue Zhang
- Department of Genetics, Stanford University, Stanford, CA 94305, USA; Genetics Bioinformatics Service Center, Stanford University, Stanford, CA 94305, USA
| | - Florian Rubelt
- Institute for Immunity, Transplantation and Infection, Stanford University, Stanford, CA 94305, USA; Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA
| | - David S Schneider
- Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA
| | - Yueh-Hsiu Chien
- Program in Immunology, Stanford University, Stanford, CA 94305, USA; Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA
| | - Robert W Sauerwein
- Department of Medical Microbiology, Radboud University Medical Center, 6500 HB, Nijmegen, the Netherlands
| | - Mark M Davis
- Institute for Immunity, Transplantation and Infection, Stanford University, Stanford, CA 94305, USA; Department of Microbiology and Immunology, Stanford University, Stanford, CA 94305, USA; Howard Hughes Medical Institute, Stanford University, Stanford, CA 94305, USA.
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24
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Hui DS, Lee N, Chan PK, Beigel JH. The role of adjuvant immunomodulatory agents for treatment of severe influenza. Antiviral Res 2018; 150:202-216. [PMID: 29325970 PMCID: PMC5801167 DOI: 10.1016/j.antiviral.2018.01.002] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 12/31/2017] [Accepted: 01/05/2018] [Indexed: 12/18/2022]
Abstract
A severe inflammatory immune response with hypercytokinemia occurs in patients hospitalized with severe influenza, such as avian influenza A(H5N1), A(H7N9), and seasonal A(H1N1)pdm09 virus infections. The role of immunomodulatory therapy is unclear as there have been limited published data based on randomized controlled trials (RCTs). Passive immunotherapy such as convalescent plasma and hyperimmune globulin have some studies demonstrating benefit when administered as an adjunctive therapy for severe influenza. Triple combination of oseltamivir, clarithromycin, and naproxen for severe influenza has one study supporting its use, and confirmatory studies would be of great interest. Likewise, confirmatory studies of sirolimus without concomitant corticosteroid therapy should be explored as a research priority. Other agents with potential immunomodulating effects, including non-immune intravenous immunoglobulin, N-acetylcysteine, acute use of statins, macrolides, pamidronate, nitazoxanide, chloroquine, antiC5a antibody, interferons, human mesenchymal stromal cells, mycophenolic acid, peroxisome proliferator-activated receptors agonists, non-steroidal anti-inflammatory agents, mesalazine, herbal medicine, and the role of plasmapheresis and hemoperfusion as rescue therapy have supportive preclinical or observational clinical data, and deserve more investigation preferably by RCTs. Systemic corticosteroids administered in high dose may increase the risk of mortality and morbidity in patients with severe influenza and should not be used, while the clinical utility of low dose systemic corticosteroids requires further investigation.
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Affiliation(s)
- David S Hui
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.
| | - Nelson Lee
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; Division of Infectious Diseases, University of Alberta, Edmonton, Canada
| | - Paul K Chan
- Department of Microbiology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - John H Beigel
- Leidos Biomedical Research Inc, Support to National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
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25
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Jin Q, Jiang L, Chen Q, Li X, Xu Y, Sun X, Zhao Z, Wei L. Rapid flow cytometry-based assay for the evaluation of γδ T cell-mediated cytotoxicity. Mol Med Rep 2017; 17:3555-3562. [PMID: 29257316 PMCID: PMC5802153 DOI: 10.3892/mmr.2017.8281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 10/24/2017] [Indexed: 11/11/2022] Open
Abstract
The effector function of natural killer, lymphokine-activated killer cells and T lymphocytes is commonly evaluated by radioactive chromium-release cytotoxicity assays. In addition to this indirect method, fluorescence assays have been described for the assessment of in vitro cell-mediated cytotoxicity. In the present study, target cells were stained with 5-(and-6)-carboxyfluorescein diacetate succinimidyl ester (CFSE), which is a stable integrated fluorescent probe that allows target and effector cells to be distinguished from one another. Staining of target THP-1 cells with 8 µM CFSE revealed high and stable loading of fluorescence and no effect of the viability of cells. After 4 h of in vitro co-culture between γδ T cells and CFSE-labeled infected or uninfected THP-1 cells, staining with propidium iodide (PI) was performed to distinguish between vital and dead cells. During sample acquisition, target cells were gated on the CFSE positivity and examined for cell death based on the uptake of PI. CFSE and PI double positive cells were recognized as the dead target cells. The percentage of cytotoxicity in the CFSE-gated cell population was calculated by subtracting the value obtained for non-specific PI-positive target cells, which was measured in a control group that did not contain effector cells. The present study describes a simple and convenient assay that is based on the direct quantitative and qualitative analysis of cell damage at a single cell level utilizing a two-color flow cytometric assay. In conclusion, the flow cytometric-based assay described in the current study is a simple, sensitive and reliable tool to determine the cytolytic activity of γδ T lymphocytes against mycobacteria. Therefore, the present study may provide valuable information concerning the methods employed to investigate the function of γδ T cells and potentially other lymphocyte subsets.
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Affiliation(s)
- Qili Jin
- Anhui Provincial Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
| | - Lina Jiang
- Anhui Provincial Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
| | - Qiao Chen
- Department of Laboratory Medicine, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
| | - Xiaoxiao Li
- Department of Laboratory Medicine, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
| | - Yinyin Xu
- Department of Laboratory Medicine, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
| | - Xueqian Sun
- Department of Laboratory Medicine, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
| | - Ziyue Zhao
- Department of Laboratory Medicine, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
| | - Li Wei
- Anhui Provincial Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
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26
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Xue C, Wen M, Bao L, Li H, Li F, Liu M, Lv Q, An Y, Zhang X, Cao B. Vγ4 +γδT Cells Aggravate Severe H1N1 Influenza Virus Infection-Induced Acute Pulmonary Immunopathological Injury via Secreting Interleukin-17A. Front Immunol 2017; 8:1054. [PMID: 28912779 PMCID: PMC5583159 DOI: 10.3389/fimmu.2017.01054] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/14/2017] [Indexed: 12/23/2022] Open
Abstract
The influenza A (H1N1) pdm09 virus remains a critical global health concern and causes high levels of morbidity and mortality. Severe acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are the major outcomes among severely infected patients. Our previous study found that interleukin (IL)-17A production by humans or mice infected with influenza A (H1N1) pdm09 substantially contributes to ALI and subsequent morbidity and mortality. However, the cell types responsible for IL-17A production during the early stage of severe influenza A (H1N1) pdm09 infection remained unknown. In this study, a mouse model of severe influenza A (H1N1) pdm09 infection was established. Our results show that, in the lungs of infected mice, the percentage of γδT cells, but not the percentages of CD4+Th and CD8+Tc cells, gradually increased and peaked at 3 days post-infection (dpi). Further analysis revealed that the Vγ4+γδT subset, but not the Vγ1+γδT subset, was significantly increased among the γδT cells. At 3 dpi, the virus induced significant increases in IL-17A in the bronchoalveolar lavage fluid (BALF) and serum. IL-17A was predominantly secreted by γδT cells (especially the Vγ4+γδT subset), but not CD4+Th and CD8+Tc cells at the early stage of infection, and IL-1β and/or IL-23 were sufficient to induce IL-17A production by γδT cells. In addition to secreting IL-17A, γδT cells secreted interferon (IFN)-γ and expressed both an activation-associated molecule, natural killer group 2, member D (NKG2D), and an apoptosis-associated molecule, FasL. Depletion of γδT cells or the Vγ4+γδT subset significantly rescued the virus-induced weight loss and improved the survival rate by decreasing IL-17A secretion and reducing immunopathological injury. This study demonstrated that, by secreting IL-17A, lung Vγ4+γδT cells, at least, in part mediated influenza A (H1N1) pdm09-induced immunopathological injury. This mechanism might serve as a promising new target for the prevention and treatment of ALI induced by influenza A (H1N1) pdm09.
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Affiliation(s)
- Chunxue Xue
- Department of Respiratory and Critical Care Medicine, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Mingjie Wen
- Department of Immunology, The Research Centre of Microbiome, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Linlin Bao
- Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Hui Li
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Fengdi Li
- Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Meng Liu
- Department of Pulmonary and Critical Care Medicine, Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical University, Beijing, China
| | - Qi Lv
- Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Yunqing An
- Department of Immunology, The Research Centre of Microbiome, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Xulong Zhang
- Department of Immunology, The Research Centre of Microbiome, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Bin Cao
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China.,Center for Respiratory Diseases, Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, Beijing, China.,Department of Respiratory Medicine, Capital Medical University, Beijing, China
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27
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Li Z, Lu X, Hu Z, Luo Z, Jiang W, Wu H, Gao Y, Yan J, Zhang Q, Song A, Huang X, Mou D, Su B, Zhang T. Syphilis Infection Differentially Regulates the Phenotype and Function of γδ T Cells in HIV-1-Infected Patients Depends on the HIV-1 Disease Stage. Front Immunol 2017; 8:991. [PMID: 28871259 PMCID: PMC5566620 DOI: 10.3389/fimmu.2017.00991] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Accepted: 08/03/2017] [Indexed: 12/22/2022] Open
Abstract
A rapidly escalating outbreak of syphilis infection has been affected men who have sex with men, particularly those with HIV-1 infection. γδ T cells are unconventional immune cells with two main subsets, Vδ1 T cells and Vδ2 T cells, which possess a combination of innate and adaptive immune features allowing them against HIV-1. However, whether syphilis infection affects the phenotype and function of γδ T cells in HIV-1-infected patients remains unclear, especially in acute HIV-1 infection (AHI). In this study, we enrolled 57 HIV-1-infected patients (24 with HIV-1 infection only and 33 coinfected with syphilis) from an acute HIV-1-infected cohort in Beijing (PRIMO). A comprehensive analysis of γδ T-cell phenotype and function was performed by flow cytometry. We found syphilis coinfection could reverse the imbalance of Vδ1/Vδ2 ratio in AHI. Syphilis infection results in decreased γδ T-cell activation in AHI, but increased γδ T-cell activation in chronic HIV-1 infection (CHI). Moreover, patients with CHI had larger numbers of IL-17-producing γδ T cells than those with AHI, regardless of syphilis status. Thus, syphilis affected the γδ T-cell immune response differently in patients depending on the stages of HIV-1 disease. In addition, the percentage of IL-17-producing γδ T cells was positively correlated with the percentage of neutrophils. These results suggest that the γδ T-cell/IL-17/neutrophil axis is involved in HIV-1 pathogenesis and disease progression. Taken together, our observations provide new insight into the roles of γδ T cells in immunopathogenesis of syphilis and HIV-1 coinfection, particularly during AHI, and our findings may be helpful for the prevention of syphilis and other sexually transmitted infections and highlight the great significance on the remedy of patients coinfected with HIV-1.
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Affiliation(s)
- Zhen Li
- Beijing Key Laboratory for HIV/AIDS Research, Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Xiaofan Lu
- Beijing Key Laboratory for HIV/AIDS Research, Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Zhiliang Hu
- Department of Infectious Diseases, The Second Affiliated Hospital, Southeast University, Nanjing, China
| | - Zhenwu Luo
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, United States
| | - Wei Jiang
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, United States.,Division of Infectious Diseases, Department of Medicine, Medical University of South Carolina, Charleston, SC, United States
| | - Hao Wu
- Beijing Key Laboratory for HIV/AIDS Research, Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Yanqing Gao
- Department of Dermatology, Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Junling Yan
- Department of Dermatology, Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Qiuyue Zhang
- Beijing Key Laboratory for HIV/AIDS Research, Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Aixin Song
- Beijing Key Laboratory for HIV/AIDS Research, Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Xiaojie Huang
- Beijing Key Laboratory for HIV/AIDS Research, Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Danlei Mou
- Beijing Key Laboratory for HIV/AIDS Research, Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Bin Su
- Beijing Key Laboratory for HIV/AIDS Research, Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Tong Zhang
- Beijing Key Laboratory for HIV/AIDS Research, Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
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28
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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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Huang C, Zeng Y, Tu W. The role of γδ-T cells during human pregnancy. Am J Reprod Immunol 2017; 78. [DOI: 10.1111/aji.12713] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 05/04/2017] [Indexed: 12/11/2022] Open
Affiliation(s)
- Chunyu Huang
- Department of Paediatric and Adolescent Medicine; Li Ka Shing Faculty of Medicine; the University of Hong Kong; HongKong China
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation; Shenzhen Zhongshan Urology of Hospital; Shenzhen Guangdong China
| | - Yong Zeng
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation; Shenzhen Zhongshan Urology of Hospital; Shenzhen Guangdong China
| | - Wenwei Tu
- Department of Paediatric and Adolescent Medicine; Li Ka Shing Faculty of Medicine; the University of Hong Kong; HongKong China
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Wang H, Li M, Zhang X, He F, Zhang S, Zhao J. Impairment of peripheral Vdelta2 T cells in human cystic echinococcosis. Exp Parasitol 2017; 174:17-24. [PMID: 28153802 DOI: 10.1016/j.exppara.2017.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 01/09/2017] [Accepted: 01/22/2017] [Indexed: 10/25/2022]
Abstract
Cystic echinococcosis (CE) induced by metacestodes (larval stages) of Echinococcus granulosus (E.granulosus) represents a severe endemic disease worldwide. Gamma delta (γδ) T cells, one of innate immune cells, play pivotal role in pathogenic infections. However, whether γδ T cells are involved in CE remains unclear. This study firstly investigated the role of peripheral γδ T cells in CE. The results showed that the percentage of peripheral γδ T cells from CE patients was decreased, compared with healthy controls (HC) (p < 0.01). This decrease was primarily due to a reduction in Vδ2 subset. Furthermore, Vδ2 T cells in CE expressed lower Natural Killer Group 2D (NKG2D) (p < 0.01). The abundance of Vδ2 T cells correlated negatively with cyst burden. To further identify the function of decreased Vδ2 T cells in CE, proliferation rate, cytokine secretion and cytotoxin were detected subsequently in vitro. As a result, the proliferation rate of Vδ2 cells in CE patients was lower than that in HC (p < 0.01). Meanwhile, Vδ2 T cells from CE patients released significantly decreased interferon (IFN)-γ, compared with HC (p < 0.05). Moreover, the levels of perforin and granzyme B of Vδ2 T cells from the patients were decreased significantly (p < 0.05), suggesting impaired cytotoxin generation of Vδ2 cells in CE. Collectively, our findings indicated that circulating Vδ2 T cells in CE was impaired, and these aberrations may contribute to disease pathogenesis.
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Affiliation(s)
- Hao Wang
- Department of Pathogenic Biology and Medical Immunology, Ningxia Medical University, Yinchuan, Ningxia, China; Key Lab of Hydatid Disease, Ningxia Medical University, Yinchuan, Ningxia, China.
| | - Ming Li
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Xiaoxia Zhang
- Department of Pathogenic Biology and Medical Immunology, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Fang He
- Department of Gastroenterology, General Hospital of Ningxia Medical University, China
| | - Shengbin Zhang
- Department of General Surgery, Baogang Hospital, Baotou, Inner Mongolia, China
| | - Jiaqing Zhao
- Department of Pathogenic Biology and Medical Immunology, Ningxia Medical University, Yinchuan, Ningxia, China; Key Lab of Hydatid Disease, Ningxia Medical University, Yinchuan, Ningxia, China.
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Kadivar M, Petersson J, Svensson L, Marsal J. CD8αβ+ γδ T Cells: A Novel T Cell Subset with a Potential Role in Inflammatory Bowel Disease. THE JOURNAL OF IMMUNOLOGY 2016; 197:4584-4592. [PMID: 27849165 DOI: 10.4049/jimmunol.1601146] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 10/13/2016] [Indexed: 01/27/2023]
Abstract
γδ T cells have been attributed a wide variety of functions, which in some cases may appear as contradictory. To better understand the enigmatic biology of γδ T cells it is crucial to define the constituting subpopulations. γδ T cells have previously been categorized into two subpopulations: CD8αα+ and CD8- cells. In this study we have defined and characterized a novel subset of human γδ T-cells expressing CD8αβ. These CD8αβ+ γδ T cells differed from the previously described γδ T cell subsets in several aspects, including the degree of enrichment within the gut mucosa, the activation status in blood, the type of TCRδ variant used in blood, and small but significant differences in their response to IL-2 stimulation. Furthermore, the novel subset expressed cytotoxic mediators and CD69, and produced IFN-γ and TNF-α. In patients with active inflammatory bowel disease the mucosal frequencies of CD8αβ+ γδ T cells were significantly lower as compared with healthy controls, correlated negatively with the degree of disease activity, and increased to normal levels as a result of anti-TNF-α therapy. In conclusion, our results demonstrate that CD8αβ+ γδ T cells constitute a novel lymphocyte subset, which is strongly enriched within the gut and may play an important role in gut homeostasis and mucosal healing in inflammatory bowel disease.
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Affiliation(s)
| | - Julia Petersson
- Immunology Section, Lund University, S-22184 Lund, Sweden; and
| | - Lena Svensson
- Immunology Section, Lund University, S-22184 Lund, Sweden; and
| | - Jan Marsal
- Immunology Section, Lund University, S-22184 Lund, Sweden; and .,Department of Gastroenterology, Skåne University Hospital, S-22185 Lund, Sweden
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Yin W, Tong S, Zhang Q, Shao J, Liu Q, Peng H, Hu H, Peng M, Hu P, Ren H, Tian Z, Zhang D. Functional dichotomy of Vδ2 γδ T cells in chronic hepatitis C virus infections: role in cytotoxicity but not for IFN-γ production. Sci Rep 2016; 6:26296. [PMID: 27192960 PMCID: PMC4872040 DOI: 10.1038/srep26296] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 04/29/2016] [Indexed: 02/08/2023] Open
Abstract
Vδ2 γδ (Vδ2) T cells, a major human γδ T cell subset, exhibit broad anti-tumor and anti-infective activity; however, their precise role in chronic hepatitis C virus (HCV) infections remains unclear. In this study, we analyzed the phenotype and function of Vδ2 T cells in 43 HCV-infected patients compared to 39 healthy controls (HCs). Vδ2 T cells from HCV-infected patients were activated and differentiated into effector cells. Vδ2 T cells in patients expressed significantly higher levels of natural killer (NK) cell markers CD56 and CD16 than in HCs, acquiring cytotoxic NK-like phenotype. The Vδ2 T cell phenotype was associated with increased cytolytic effector molecules expression in HCV-infected patients with elevated serum ALT levels. Surprisingly, Vδ2 T cells in patients had a markedly impaired capacity to produce IFN-γ. Further in vitro and in vivo analysis showed that interferon-α, which was induced during HCV infection, caused Vδ2 T cell function bias toward cytotoxicity. These results suggest a functional dichotomy for Vδ2 T cells in chronic HCV infections: a role in cytotoxicity but not for IFN-γ production, which may contribute to both the liver inflammation and HCV persistence.
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Affiliation(s)
- Wenwei Yin
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P. R. China
| | - Shiwen Tong
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P. R. China
| | - Qiongfang Zhang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P. R. China
| | - Jianying Shao
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P. R. China
| | - Qian Liu
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P. R. China
| | - Hong Peng
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P. R. China
| | - Huaidong Hu
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P. R. China
| | - Mingli Peng
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P. R. China
| | - Peng Hu
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P. R. China
| | - Hong Ren
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P. R. China
| | - Zhigang Tian
- Institute of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Dazhi Zhang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P. R. China
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Zheng J, Wu WL, Liu Y, Xiang Z, Liu M, Chan KH, Lau SY, Lam KT, To KKW, Chan JFW, Li L, Chen H, Lau YL, Yuen KY, Tu W. The Therapeutic Effect of Pamidronate on Lethal Avian Influenza A H7N9 Virus Infected Humanized Mice. PLoS One 2015; 10:e0135999. [PMID: 26285203 PMCID: PMC4540487 DOI: 10.1371/journal.pone.0135999] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Accepted: 07/28/2015] [Indexed: 01/04/2023] Open
Abstract
A novel avian influenza virus H7N9 infection occurred among human populations since 2013. Although the lack of sustained human-to-human transmission limited the epidemics caused by H7N9, the late presentation of most patients and the emergence of neuraminidase-resistant strains made the development of novel antiviral strategy against H7N9 in urgent demands. In this study, we evaluated the potential of pamidronate, a pharmacological phosphoantigen that can specifically boost human Vδ2-T-cell, on treating H7N9 virus-infected humanized mice. Our results showed that intraperitoneal injection of pamidronate could potently decrease the morbidity and mortality of H7N9-infected mice through controlling both viral replication and inflammation in affected lungs. More importantly, pamidronate treatment starting from 3 days after infection could still significantly ameliorate the severity of diseases in infected mice and improve their survival chance, whereas orally oseltamivir treatment starting at the same time showed no therapeutic effects. As for the mechanisms underlying pamidronate-based therapy, our in vitro data demonstrated that its antiviral effects were partly mediated by IFN-γ secreted from human Vδ2-T cells. Meanwhile, human Vδ2-T cells could directly kill virus-infected host cells in a perforin-, granzyme B- and CD137-dependent manner. As pamidronate has been used for osteoporosis treatment for more than 20 years, pamidronate-based therapy represents for a safe and readily available option for clinical trials to treat H7N9 infection.
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Affiliation(s)
- Jian Zheng
- Department of Paediatrics & Adolescent Medicine, University of Hong Kong, Hong Kong, China
| | - Wai-Lan Wu
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, University of Hong Kong, Hong Kong, China
| | - Yinping Liu
- Department of Paediatrics & Adolescent Medicine, University of Hong Kong, Hong Kong, China
| | - Zheng Xiang
- Department of Paediatrics & Adolescent Medicine, University of Hong Kong, Hong Kong, China
| | - Ming Liu
- Guangzhou Institute of Respiratory Diseases, Guangzhou Medical University, Guangzhou, China
| | - Kwok-Hung Chan
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, University of Hong Kong, Hong Kong, China
| | - Siu-Ying Lau
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, University of Hong Kong, Hong Kong, China
| | - Kwok-Tai Lam
- Department of Paediatrics & Adolescent Medicine, University of Hong Kong, Hong Kong, China
| | - Kelvin Kai-Wang To
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, University of Hong Kong, Hong Kong, China
| | - Jasper Fuk-Woo Chan
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, University of Hong Kong, Hong Kong, China
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Honglin Chen
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, University of Hong Kong, Hong Kong, China
| | - Yu-Lung Lau
- Department of Paediatrics & Adolescent Medicine, University of Hong Kong, Hong Kong, China
| | - Kwok-Yung Yuen
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, University of Hong Kong, Hong Kong, China
| | - Wenwei Tu
- Department of Paediatrics & Adolescent Medicine, University of Hong Kong, Hong Kong, China
- * E-mail:
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Jagannathan P, Kim CC, Greenhouse B, Nankya F, Bowen K, Eccles-James I, Muhindo MK, Arinaitwe E, Tappero JW, Kamya MR, Dorsey G, Feeney ME. Loss and dysfunction of Vδ2⁺ γδ T cells are associated with clinical tolerance to malaria. Sci Transl Med 2015; 6:251ra117. [PMID: 25163477 DOI: 10.1126/scitranslmed.3009793] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Although clinical immunity to malaria eventually develops among children living in endemic settings, the underlying immunologic mechanisms are not known. The Vδ2(+) subset of γδ T cells have intrinsic reactivity to malaria antigens, can mediate killing of Plasmodium falciparum merozoites, and expand markedly in vivo after malaria infection in previously naïve hosts, but their role in mediating immunity in children repeatedly exposed to malaria is unclear. We evaluated γδ T cell responses to malaria among 4-year-old children enrolled in a longitudinal study in Uganda. We found that repeated malaria was associated with reduced percentages of Vδ2(+) γδ T cells in peripheral blood, decreased proliferation and cytokine production in response to malaria antigens, and increased expression of immunoregulatory genes. Further, loss and dysfunction of proinflammatory Vδ2(+) γδ T cells were associated with a reduced likelihood of symptoms upon subsequent P. falciparum infection. Together, these results suggest that repeated malaria infection during childhood results in progressive loss and dysfunction of Vδ2(+) γδ T cells that may facilitate immunological tolerance of the parasite.
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Affiliation(s)
- Prasanna Jagannathan
- Department of Medicine, San Francisco General Hospital, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Charlie C Kim
- Department of Medicine, San Francisco General Hospital, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Bryan Greenhouse
- Department of Medicine, San Francisco General Hospital, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Felistas Nankya
- Infectious Diseases Research Collaboration, P.O. Box 7475, Kampala, Uganda
| | - Katherine Bowen
- Department of Medicine, San Francisco General Hospital, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Ijeoma Eccles-James
- Department of Medicine, San Francisco General Hospital, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Mary K Muhindo
- Infectious Diseases Research Collaboration, P.O. Box 7475, Kampala, Uganda
| | - Emmanuel Arinaitwe
- Infectious Diseases Research Collaboration, P.O. Box 7475, Kampala, Uganda
| | - Jordan W Tappero
- Center for Global Health, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Moses R Kamya
- Department of Medicine, Makerere University College of Health Sciences, P.O. Box 7051, Kampala, Uganda
| | - Grant Dorsey
- Department of Medicine, San Francisco General Hospital, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Margaret E Feeney
- Department of Medicine, San Francisco General Hospital, University of California, San Francisco, San Francisco, CA 94110, USA. Department of Pediatrics, University of California, San Francisco, San Francisco, CA 94110, USA.
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35
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Human Umbilical Cord Mesenchymal Stem Cells Inhibit the Function of Allogeneic Activated Vγ9Vδ2 T Lymphocytes In Vitro. BIOMED RESEARCH INTERNATIONAL 2015; 2015:317801. [PMID: 25984529 PMCID: PMC4423519 DOI: 10.1155/2015/317801] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 03/21/2015] [Accepted: 03/22/2015] [Indexed: 01/01/2023]
Abstract
Background. Human umbilical cord mesenchymal stem cells (UC-MSCs) can regulate the function of immune cells. However, whether and how UC-MSCs can modulate the function of Vγ9Vδ2 T cells has not been fully understood. Methods. The PBMCs or Vγ9Vδ2 T cells were activated and expanded with pamidronate (PAM) and interleukin-2 (IL-2) with or without the presence UC-MSCs. The effects of UC-MSCs on the proliferation, cytokine expression, and cytotoxicity of Vγ9Vδ2 T cells were determined by flow cytometry. The effects of UC-MSCs on Fas-L, TRAIL-expressing Vγ9Vδ2 T cells, and Vγ9Vδ2 T cell apoptosis were determined by flow cytometry. Results. UC-MSCs inhibited Vγ9Vδ2 T cell proliferation in a dose-dependent but cell-contact independent manner. Coculture with UC-MSCs reduced the frequency of IFNγ+ but increased granzyme B+ Vγ9Vδ2 T cells. UC-MSCs inhibited the cytotoxicity of Vγ9Vδ2 T cells against influenza virus H1N1 infected A549 cells and also reduced the frequency of Fas-L+, TRAIL+ Vγ9Vδ2 T cells but failed to modulate the apoptosis of Vγ9Vδ2 T cells. Conclusions. These results indicated that UC-MSCs efficiently suppressed the proliferation and cytotoxicity of Vγ9Vδ2 T cells and modulated their cytokine production. Fas-L and TRAIL were involved in the regulation. Cell contact and apoptosis of Vγ9Vδ2 T cells were not necessary for the inhibition.
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Chen M, Hu P, Ling N, Peng H, Lei Y, Hu H, Zhang D, Ren H. Enhanced functions of peripheral γδ T cells in chronic hepatitis B infection during interferon α treatment in vivo and in vitro. PLoS One 2015; 10:e0120086. [PMID: 25774808 PMCID: PMC4361562 DOI: 10.1371/journal.pone.0120086] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 01/19/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND γδ T cells play an important role in infectious, autoimmune, or neoplastic diseases. Here, a study was conducted to investigate the dynamic changes in phenotype and function of peripheral γδ T cells in patients with chronic hepatitis B (CHB) during pegylated-interferon (pegIFN)-α treatment, and to explore their roles in IFN-α therapy. METHODS Total 15 CHB patients with pegIFN-α therapy and 6 healthy controls (HC) were enrolled in this study. Flow cytometry was used for the study of frequency of peripheral γδ T cells, subtypes, effector or memory γδ T cells, and also the IFN-γ+, TNF-α+, CD107a+ or Granzyme B+ γδ T cells in 10 patients at week 0, 4, 8, 12, 24, 36 and 48 of treatment. Another 5 CHB patients and 6 HC were recruited for the γδ T cell isolation, and gene expression in γδ T cells was evaluated before or after IFN-α treatment in vitro. RESULTS Although γδT cells decreased in CHB patients during pegIFN-α therapy, their capacities to produce TNF-α and to express CD107a were enhanced. More effector γδT cells (CD27-CD45RA+) were found in the response group than in non-response group. Furthermore, IFN-α boosted the expression of Mx2 and cytokine genes in γδT cells from CHB patients in vitro. CONCLUSION IFN-α could enhance the cytokine production or cytotoxicity potential of γδT cells in vivo and in vitro. The enhanced function of γδT cells might contribute to the effect of IFN-α treatment.
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Affiliation(s)
- Min Chen
- Institute for Viral Hepatitis, Key Laboratory of Molecular Biology for Infectious Diseases, Ministry of Education, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
- * E-mail: (MC); (HR)
| | - Peng Hu
- Institute for Viral Hepatitis, Key Laboratory of Molecular Biology for Infectious Diseases, Ministry of Education, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Ning Ling
- Institute for Viral Hepatitis, Key Laboratory of Molecular Biology for Infectious Diseases, Ministry of Education, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Hui Peng
- Department of laboratory medicine, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yu Lei
- Institute for Viral Hepatitis, Key Laboratory of Molecular Biology for Infectious Diseases, Ministry of Education, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Huaidong Hu
- Institute for Viral Hepatitis, Key Laboratory of Molecular Biology for Infectious Diseases, Ministry of Education, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Dazhi Zhang
- Institute for Viral Hepatitis, Key Laboratory of Molecular Biology for Infectious Diseases, Ministry of Education, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Hong Ren
- Institute for Viral Hepatitis, Key Laboratory of Molecular Biology for Infectious Diseases, Ministry of Education, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
- * E-mail: (MC); (HR)
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Patil RS, Bhat SA, Dar AA, Chiplunkar SV. The Jekyll and Hyde story of IL17-Producing γδT Cells. Front Immunol 2015; 6:37. [PMID: 25699053 PMCID: PMC4316782 DOI: 10.3389/fimmu.2015.00037] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 01/20/2015] [Indexed: 12/19/2022] Open
Abstract
In comparison to conventional αβT cells, γδT cells are considered as specialized T cells based on their contributions in regulating immune response. γδT cells sense early environmental signals and initiate local immune-surveillance. The development of functional subtypes of γδT cells takes place in the thymus but they also exhibit plasticity in response to the activating signals and cytokines encountered in the extrathymic region. Thymic development of Tγδ1 requires strong TCR, CD27, and Skint-1 signals. However, differentiation of IL17-producing γδT cells (Tγδ17) is independent of Skint-1 or CD27 but requires notch signaling along with IL6 and TGFβ cytokines in the presence of weak TCR signal. In response to cytokines like IL23, IL6, and IL1β, Tγδ17 outshine Th17 cells for early activation and IL17 secretion. Despite expressing similar repertoire of lineage transcriptional factors, cytokines, and chemokine receptors, Tγδ17 cells differ from Th17 in spatial and temporal fashion. There are compelling reasons to consider significant role of Tγδ17 cells in regulating inflammation and thereby disease outcome. Tγδ17 cells regulate mobilization of innate immune cells and induce keratinocytes to secrete anti-microbial peptides thus exhibiting protective functions in anti-microbial immunity. In contrast, dysregulated Tγδ17 cells inhibit Treg cells, exacerbate autoimmunity, and are also known to support carcinogenesis by enhancing angiogenesis. The mechanism associated with this dual behavior of Tγδ17 is not clear. To exploit, Tγδ17 cells for beneficial use requires comprehensive analysis of their biology. Here, we summarize the current understanding on the characteristics, development, and functions of Tγδ17 cells in various pathological scenarios.
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Affiliation(s)
- Rushikesh S Patil
- Chiplunkar Laboratory, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre , Kharghar , India
| | - Sajad A Bhat
- Chiplunkar Laboratory, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre , Kharghar , India
| | - Asif A Dar
- Chiplunkar Laboratory, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre , Kharghar , India
| | - Shubhada V Chiplunkar
- Chiplunkar Laboratory, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre , Kharghar , India
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Lu Q, Yu M, Shen C, Chen X, Feng T, Yao Y, Li J, Li H, Tu W. Negligible immunogenicity of induced pluripotent stem cells derived from human skin fibroblasts. PLoS One 2014; 9:e114949. [PMID: 25503995 PMCID: PMC4263724 DOI: 10.1371/journal.pone.0114949] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 11/16/2014] [Indexed: 12/29/2022] Open
Abstract
Human induced pluripotent stem cells (hiPSCs) have potential applications in cell replacement therapy and regenerative medicine. However, limited information is available regarding the immunologic features of iPSCs. In this study, expression of MHC and T cell co-stimulatory molecules in hiPSCs, and the effects on activation, proliferation and cytokine production in allogeneic human peripheral blood mononuclear cells were examined. We found that no-integrate hiPSCs had no MHC-II and T cell co-stimulatory molecules expressions but had moderate level of MHC-I and HLA-G expressions. In contrast to human skin fibroblasts (HSFs) which significantly induced allogeneic T cell activation and proliferation, hiPSCs failed to induce allogeneic CD45+ lymphocyte and CD8+ T cell activation and proliferation but could induce a low level of allogeneic CD4+ T cell proliferation. Unlike HSFs which induced allogeneic lymphocytes to produce high levels of IFN-γ, TNF-α and IL-17, hiPSCs only induced allogeneic lymphocytes to produce IL-2 and IL-10, and promote IL-10-secreting regulatory T cell (Treg) generation. Our study suggests that the integration-free hiPSCs had low or negligible immunogenicity, which may result from their induction of IL-10-secreting Treg.
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Affiliation(s)
- Qiao Lu
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, Sichuan, 610041, China
- Department of Pediatrics, University Hospital of Hubei University for Nationalities, Enshi, Hubei, 445000, China
| | - Meixing Yu
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Chongyang Shen
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xiaoping Chen
- Laboratory of Pathogen Biology, State Key Laboratory of Respiratory Disease, Center for Infection and Immunity, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Ting Feng
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yongchao Yao
- Laboratory of Pathogen Biology, State Key Laboratory of Respiratory Disease, Center for Infection and Immunity, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Jinrong Li
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Hong Li
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, Sichuan, 610041, China
- Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
- * E-mail: (HL); (WT)
| | - Wenwei Tu
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, Sichuan, 610041, China
- Department of Pediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
- * E-mail: (HL); (WT)
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Lethal coinfection of influenza virus and Streptococcus pneumoniae lowers antibody response to influenza virus in lung and reduces numbers of germinal center B cells, T follicular helper cells, and plasma cells in mediastinal lymph Node. J Virol 2014; 89:2013-23. [PMID: 25428873 DOI: 10.1128/jvi.02455-14] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
UNLABELLED Secondary Streptococcus pneumoniae infection after influenza is a significant clinical complication resulting in morbidity and sometimes mortality. Prior influenza virus infection has been demonstrated to impair the macrophage and neutrophil response to the subsequent pneumococcal infection. In contrast, how a secondary pneumococcal infection after influenza can affect the adaptive immune response to the initial influenza virus infection is less well understood. Therefore, this study focuses on how secondary pneumococcal infection after influenza may impact the humoral immune response to the initial influenza virus infection in a lethal coinfection mouse model. Compared to mice infected with influenza virus alone, mice coinfected with influenza virus followed by pneumococcus had significant body weight loss and 100% mortality. In the lung, lethal coinfection significantly increased virus titers and bacterial cell counts and decreased the level of virus-specific IgG, IgM, and IgA, as well as the number of B cells, CD4 T cells, and plasma cells. Lethal coinfection significantly reduced the size and weight of spleen, as well as the number of B cells along the follicular developmental lineage. In mediastinal lymph nodes, lethal coinfection significantly decreased germinal center B cells, T follicular helper cells, and plasma cells. Adoptive transfer of influenza virus-specific immune serum to coinfected mice improved survival, suggesting the protective functions of anti-influenza virus antibodies. In conclusion, coinfection reduced the B cell response to influenza virus. This study helps us to understand the modulation of the B cell response to influenza virus during a lethal coinfection. IMPORTANCE Secondary pneumococcal infection after influenza virus infection is an important clinical issue that often results in excess mortality. Since antibodies are key mediators of protection, this study aims to examine the antibody response to influenza virus and demonstrates that lethal coinfection reduced the B cell response to influenza virus. This study helps to highlight the complexity of the modulation of the B cell response in the context of coinfection.
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Xiang Z, Liu Y, Zheng J, Liu M, Lv A, Gao Y, Hu H, Lam KT, Chan GCF, Yang Y, Chen H, Tsao GSW, Bonneville M, Lau YL, Tu W. Targeted activation of human Vγ9Vδ2-T cells controls epstein-barr virus-induced B cell lymphoproliferative disease. Cancer Cell 2014; 26:565-76. [PMID: 25220446 DOI: 10.1016/j.ccr.2014.07.026] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 05/04/2014] [Accepted: 07/28/2014] [Indexed: 12/14/2022]
Abstract
Epstein-Barr virus-induced lymphoproliferative disease (EBV-LPD) after transplantation remains a serious and life-threatening complication. Herein we showed that the aminobisphosphonate pamidronate-expanded human Vγ9Vδ2-T cells efficiently killed EBV-transformed autologous lymphoblastoid B cell lines (EBV-LCL) through γ/δ-TCR and NKG2D receptor triggering and Fas and TRAIL engagement. By inoculation of EBV-LCL in Rag2(-/-)γc(-/-) mice and humanized mice, we established lethal EBV-LPD with characteristics close to those of the human disease. Adoptive transfer of pamidronate-expanded Vγ9Vδ2-T cells alone effectively prevented EBV-LPD in Rag2(-/-)γc(-/-) mice and induced EBV-LPD regression in EBV(+) tumor-bearing Rag2(-/-)γc(-/-) mice. Pamidronate treatment inhibited EBV-LPD development in humanized mice through selective activation and expansion of Vγ9Vδ2-T cells. This study provides proof-of-principle for a therapeutic approach using pamidronate to control EBV-LPD through Vγ9Vδ2-T cell targeting.
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Affiliation(s)
- Zheng Xiang
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Yinping Liu
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Jian Zheng
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Ming Liu
- Guangzhou Institute of Respiratory Diseases, Guangzhou Medical College, Guangzhou, China
| | - Aizhen Lv
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Yulong Gao
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Huaidong Hu
- Key Laboratory of Molecular Biology for Infectious Diseases, Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Kowk-Tai Lam
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Godfrey Chi-Fung Chan
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Yuanzhong Yang
- Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Honglin Chen
- Department of Microbiology, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - George Sai-Wah Tsao
- Department of Anatomy, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Marc Bonneville
- Centre de Recherche en Cancérologie Nantes-Angers, Université de Nantes, 44300 Nantes, France; INSERM U892 CNRS UMR6299, 44300 Nantes, France
| | - Yu-Lung Lau
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Wenwei Tu
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China.
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Li Z, Li W, Li N, Jiao Y, Chen D, Cui L, Hu Y, Wu H, He W. γδ T cells are involved in acute HIV infection and associated with AIDS progression. PLoS One 2014; 9:e106064. [PMID: 25188438 PMCID: PMC4154895 DOI: 10.1371/journal.pone.0106064] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 07/31/2014] [Indexed: 11/21/2022] Open
Abstract
Background Early diagnosis is vital to HIV control. γδ T cells play critical roles in viral infections, but their activation in acute HIV infected patients and follow up to 18 months has not been described. Methods Changes in γδ T cells, including subsets, function and activation, in treated and untreated acutely HIV-infected patients (n = 79) were compared by cytotoxicity assay and flow cytometry with healthy controls (n = 21) at month 0, 6, 12 and 18. Results In acutely HIV-infected patients, Vδ1 cell proportion was elevated (P = 0.027) with Vδ2 population reduced (P = 0.002). Effector and central memory γδ T cell factions were decreased (P = 0.006 and P = 0.001, respectively), while proportion of terminal γδ T cells increased (P = 0.002). γδ T cell cytotoxicity was compromised over time. Fraction of IL-17-producing cells increased (P = 0.008), and IFN-γ-producing cells were unaffected (P = 0.115). Elevation of a microbial translocation marker, sCD14, was associated with γδ T cell activation (P = 0.001), which increased in a time-dependent manner, correlating with CD4/CD8 T cell activation set-points and CD4 counts. Antiretroviral therapy did not affect these changes. Conclusions γδ T cell subpopulation and functions change significantly in acute HIV infection and over time. Early γδ T cell activation was associated with CD4/CD8 T cell activation set-points, which predict AIDS progression. Therefore, γδ T cell activation represents a potential surrogate marker of AIDS progression.
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Affiliation(s)
- Zhen Li
- Department of Immunology, School of Basic Medicine, Peking Union Medical College; National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Wei Li
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Ning Li
- Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Yanmei Jiao
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Dexi Chen
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Lianxian Cui
- Department of Immunology, School of Basic Medicine, Peking Union Medical College; National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Yu Hu
- Department of Immunology, School of Basic Medicine, Peking Union Medical College; National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Hao Wu
- Center for Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing, China
- * E-mail: (HW); (WH)
| | - Wei He
- Department of Immunology, School of Basic Medicine, Peking Union Medical College; National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
- * E-mail: (HW); (WH)
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Vasudev A, Ying CTT, Ayyadhury S, Puan KJ, Andiappan AK, Nyunt MSZ, Shadan NB, Mustafa S, Low I, Rotzschke O, Fulop T, Ng TP, Larbi A. γ/δ T cell subsets in human aging using the classical α/β T cell model. J Leukoc Biol 2014; 96:647-55. [PMID: 25001861 DOI: 10.1189/jlb.5a1213-650rr] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Aging is associated with an increased susceptibility to infections and diseases. It has also been associated with reduced functionality and altered distribution of immune cells, especially T cells. Whereas classical α/β T cells, especially CD8(+) T cells, were shown to be highly susceptible to aging, the effects of viral persistent stimulations on the fate of γ/δ T cells are much less documented. Healthy, elderly individuals of Chinese ethnical background were recruited under the aegis of SLAS-II. In this observational study, γ/δ T cell populations were characterized by flow cytometry and compared with the α/β CD4(+) and CD8(+) T cells in elderly and young controls. In our study, we identified a reduced frequency of γ/δ T cells but not α/β T cells with aging. The classical markers of α/β T cell aging, including CD28, CD27, and CD57, did not prove significant for γ/δ T cells. The extreme range of expression of these markers in γ/δ T cells was responsible for the lack of relationship between γ/δ T cell subsets, CD4/CD8 ratio, and anti-CMV titers that was significant for α/β T cells and, especially, CD8(+) T cells. Although markers of aging for γ/δ T cells are not clearly identified, our data collectively suggest that the presence of CD27 γ/δ T cells is associated with markers of α/β T cell aging.
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Affiliation(s)
- Anusha Vasudev
- Singapore Immunology Network, Biopolis, Agency for Science, Technology and Research, Singapore
| | - Crystal Tan Tze Ying
- Singapore Immunology Network, Biopolis, Agency for Science, Technology and Research, Singapore
| | - Shamini Ayyadhury
- Singapore Immunology Network, Biopolis, Agency for Science, Technology and Research, Singapore
| | - Kia Joo Puan
- Singapore Immunology Network, Biopolis, Agency for Science, Technology and Research, Singapore
| | - Anand Kumar Andiappan
- Singapore Immunology Network, Biopolis, Agency for Science, Technology and Research, Singapore
| | - Ma Shwe Zin Nyunt
- Gerontological Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; and
| | - Nurhidaya Binte Shadan
- Singapore Immunology Network, Biopolis, Agency for Science, Technology and Research, Singapore
| | - Seri Mustafa
- Singapore Immunology Network, Biopolis, Agency for Science, Technology and Research, Singapore
| | - Ivy Low
- Singapore Immunology Network, Biopolis, Agency for Science, Technology and Research, Singapore
| | - Olaf Rotzschke
- Singapore Immunology Network, Biopolis, Agency for Science, Technology and Research, Singapore
| | - Tamas Fulop
- Research Center on Aging, University of Sherbrooke, Faculty of Medicine, Québec, Canada
| | - Tze Pin Ng
- Gerontological Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; and
| | - Anis Larbi
- Singapore Immunology Network, Biopolis, Agency for Science, Technology and Research, Singapore;
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Wistuba-Hamprecht K, Pawelec G, Derhovanessian E. OMIP-020: phenotypic characterization of human γδ T-cells by multicolor flow cytometry. Cytometry A 2014; 85:522-4. [PMID: 24756989 DOI: 10.1002/cyto.a.22470] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 02/18/2014] [Accepted: 03/26/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Kilian Wistuba-Hamprecht
- Department of Internal Medicine II, Centre for Medical Research, University of Tübingen, Tübingen, Germany
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Li J, Li H, Mao H, Yu M, Yang F, Feng T, Fan Y, Lu Q, Shen C, Yin Z, Mao M, Tu W. Impaired NK cell antiviral cytokine response against influenza virus in small-for-gestational-age neonates. Cell Mol Immunol 2013; 10:437-43. [PMID: 23872919 DOI: 10.1038/cmi.2013.31] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 06/03/2013] [Accepted: 06/04/2013] [Indexed: 01/26/2023] Open
Abstract
The neonates, particularly small-for-gestational-age (SGA) ones, are susceptible to various microbial infections. Natural killer (NK) cells are critical components of host innate immunity system and the main source of the inflammatory cytokines, which provide critical protection during the early phase of viral infections before the development of an appropriate adaptive immune response. However, little is known about the antiviral effects of NK cells in neonates especially the SGA population. Herein, a prospective descriptive study was performed to determine the differences of NK cell immunity among adults, appropriate-for gestational-age (AGA) and SGA neonates. Adults have much higher NK cell number in peripheral blood than that in cord blood from neonates. In response to influenza virus stimulation, neonatal NK cells, especially SGA baby cells, expressed significantly lower antiviral cytokines including perforin, interferon (IFN)-γ and tumor-necrosis factor (TNF)-α responses than adult NK cells. In addition, the antiviral cytokine responses of NK cells were positively correlated with neonatal birth weight. Our data suggested that the depressed antiviral activity and less frequency of NK cells are likely to be responsible for the high susceptibility to microbial infection in neonates, at least in part. Improving the function of innate immunity may provide a new way to defend virus infection.
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Affiliation(s)
- Jinrong Li
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, China
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Vγ9Vδ2-T lymphocytes have impaired antiviral function in small-for-gestational-age and preterm neonates. Cell Mol Immunol 2013; 10:253-60. [PMID: 23524656 DOI: 10.1038/cmi.2012.78] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Preterm and small-for-gestational-age (SGA) neonates are vulnerable groups that are susceptible to various microbial infections. Vγ9Vδ2-T cells are critical components of the host immune system and have been demonstrated to play an important role in the defense against viral infection in adults. However, the characteristics of Vγ9Vδ2-T cells in children, especially the preterm and SGA populations, are poorly understood. Here, we examined the frequency and antiviral function of Vγ9Vδ2-T cells in neonates, including preterm, SGA and full-term babies. When compared to adults, neonates had a significantly lower percentage of Vγ9Vδ2-T cells in the blood. Upon influenza virus stimulation, neonatal Vγ9Vδ2-T cells, especially from preterm and SGA babies, showed markedly decreased and delayed antiviral cytokine responses than those of adults. In addition, the antiviral responses of neonatal Vγ9Vδ2-T cells were positively correlated with gestational age and birth weight. Finally, a weaker expansion of Vγ9Vδ2-T cells by isopentenyl pyrophosphate (IPP) was shown in neonates than the expansion in adults. Our data suggest that the depressed antiviral activity and decreased frequency of Vγ9Vδ2-T cells may likely account for the high susceptibility to microbial infection in neonates, particularly in preterm and SGA babies. Improving Vγ9Vδ2-T-cell function of neonates may provide a new way to defend against virus infection.
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Massa C, Seliger B. Fast dendritic cells stimulated with alternative maturation mixtures induce polyfunctional and long-lasting activation of innate and adaptive effector cells with tumor-killing capabilities. THE JOURNAL OF IMMUNOLOGY 2013; 190:3328-37. [PMID: 23447683 DOI: 10.4049/jimmunol.1202024] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The clinical usage of dendritic cells (DC) for tumor immunotherapy still requires improvements. In this study, three alternative maturation mixtures were compared with the cytokine-based gold standard, and the overall interaction of the resulting DC with effector cells from the innate as well as the adaptive immunity was evaluated in healthy donors. Stimulation with the TLR-4 ligand monophosphoryl lipid A together with IFN-γ (alt-2 DC) resulted in DC with the highest levels of costimulatory molecule expression and IL-12p70/IL-10 ratio. Whereas all alternative DC were able to induce NK and γδ T cells to acquire cytotoxic properties and secrete type 1 and proinflammatory cytokines, after both short (20-h)- and long (5-8 d)-time coculture, secretion of IFN-γ by the innate populations was induced in response to alt-2 and alt-1 DC (TNF-α, IFN-α, IFN-γ, IL-1β, poly IC), but not to alt-3 DC (TNF-α, IFN-γ, IL-1β, CL097). Regarding CD8(+) T cell-mediated Ag-specific immune responses, a heterogeneous pattern of responses was obtained among the healthy donors, suggesting rather a competition than a synergy among the different effector cells. Our data promote further evaluation of alt-2 fast DC for translatability into clinical immunotherapy trials, while also fostering the need to identify biomarkers for immune cell responsiveness and tumor susceptibility to be able to select for each patient the best possible DC-based therapy.
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Affiliation(s)
- Chiara Massa
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, 06112 Halle, Saale, Germany
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Li H, Xiang Z, Feng T, Li J, Liu Y, Fan Y, Lu Q, Yin Z, Yu M, Shen C, Tu W. Human Vγ9Vδ2-T cells efficiently kill influenza virus-infected lung alveolar epithelial cells. Cell Mol Immunol 2013; 10:159-64. [PMID: 23353835 DOI: 10.1038/cmi.2012.70] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
γδ-T cells play an indispensable role in host defense against different viruses, including influenza A virus. However, whether these cells have cytotoxic activity against influenza virus-infected lung alveolar epithelial cells and subsequently contribute to virus clearance remains unknown. Using influenza virus-infected A549 cells, human lung alveolar epithelial cells, we investigated the cytotoxic activity of aminobisphosphonate pamidronate (PAM)-expanded human Vγ9Vδ2-T cells and their underlying mechanisms. We found that PAM could selectively activate and expand human Vγ9Vδ2-T cells. PAM-expanded human Vγ9Vδ2-T cells efficiently killed influenza virus-infected lung alveolar epithelial cells and inhibited virus replication. The cytotoxic activity of PAM-expanded Vγ9Vδ2-T cells was dependent on cell-to-cell contact and required NKG2D activation. Perforin-granzyme B, tumor-necrosis factor-related apoptosis-inducing ligand (TRAIL) and Fas-Fas ligand (FasL) pathways were involved in their cytotoxicity. Our study suggests that targeting γδ-T cells by PAM can potentially offer an alternative option for the treatment of influenza virus.
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Affiliation(s)
- Hong Li
- Joint Research Center of West China Second University Hospital of Sichuan University and Department of Paediatrics and Adolescent Medicine of University of Hong Kong, Sichuan University, Chengdu 610041, China.
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Depletion and dysfunction of Vγ2Vδ2 T cells in HIV disease: mechanisms, impacts and therapeutic implications. Cell Mol Immunol 2012; 10:42-9. [PMID: 23241900 DOI: 10.1038/cmi.2012.50] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Infection with human immunodeficiency virus (HIV) disrupts the balance among γδ T cell subsets, with increasing Vδ1+ cells and substantial depletion of circulating Vδ2+ cells. Depletion is an indirect effect of HIV in CD4-negative Vδ2 cells, but is specific for phosphoantigen-responsive subpopulations identified by the Vγ2-Jγ1.2 (also called Vγ9-JγP) T cell receptor rearrangement. The extent of cell loss and recovery is related closely to clinical status, with highest levels of functional Vδ2 cells present in virus controllers (undetectable viremia in the absence of antiretroviral therapy). We review the mechanisms and clinical consequences for Vδ2 cell depletion in HIV disease. We address the question of whether HIV-mediated Vδ2 cell depletion, despite being an indirect effect of infection, is an important part of the immune evasion strategy for this virus. The important roles for Vδ2 cells, as effectors and immune regulators, identify key mechanisms affected by HIV and show the strong relationships between Vδ2 cell loss and immunodeficiency disease. This field is moving toward immune therapies based on targeting Vδ2 cells and we now have clear goals and expectations to guide interventional clinical trials.
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Abstract
γδ-T cells represent a small population of immune cells, but play an indispensable role in host defenses against exogenous pathogens, immune surveillance of endogenous pathogenesis and even homeostasis of the immune system. Activation and expansion of γδ-T cells are generally observed in diverse human infectious diseases and correlate with their progression and prognosis. γδ-T cells have both 'innate' and 'adaptive' characteristics in the immune response, and their anti-infection activities are mediated by multiple pathways that are under elaborate regulation by other immune components. In this review, we summarize the current state of the literature and the recent advancements in γδ-T cell-mediated immune responses against common human infectious pathogens. Although further investigation is needed to improve our understanding of the characteristics of different γδ-T cell subpopulations under specific conditions, γδ-T cell-based therapy has great potential for the treatment of infectious diseases.
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