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Katsnelson EN, Spengler A, Domenico J, Couts KL, Loh L, Gapin L, McCarter MD, Tobin RP. Dysfunctional states of unconventional T-cell subsets in cancer. J Leukoc Biol 2024; 115:36-46. [PMID: 37837379 PMCID: PMC10843843 DOI: 10.1093/jleuko/qiad129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/25/2023] [Accepted: 09/28/2023] [Indexed: 10/16/2023] Open
Abstract
Unconventional T cells represent a promising therapeutic agent to overcome the current limitations of immunotherapies due to their universal T-cell receptors, ability to respond directly to cytokine stimulation, and capacity to recruit and modulate conventional immune cells in the tumor microenvironment. Like conventional T cells, unconventional T cells can enter a dysfunctional state, and the functional differences associated with this state may provide insight into the discrepancies observed in their role in antitumor immunity in various cancers. The exhaustive signature of unconventional T cells differs from conventional αβ T cells, and understanding the differences in the mechanisms underlying exhaustive differentiation in these cell types may aid in the discovery of new treatments to improve sustained antitumor responses. Ongoing clinical trials investigating therapies that leverage unconventional T-cell populations have shown success in treating hematologic malignancies and reducing the immunosuppressive tumor environment. However, several hurdles remain to extend these promising results into solid tumors. Here we discuss the current knowledge on unconventional T-cell function/dysfunction and consider how the incorporation of therapies that modulate unconventional T-cell exhaustion may aid in overcoming the current limitations of immunotherapy. Additionally, we discuss how components of the tumor microenvironment alter the functions of unconventional T cells and how these changes can affect tumor infiltration by lymphocytes and alter conventional T-cell responses.
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Affiliation(s)
- Elizabeth N. Katsnelson
- Department of Surgery, Division of Surgical Oncology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
| | - Andrea Spengler
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
| | - Joanne Domenico
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
| | - Kasey L. Couts
- Department of Medicine, Division of Medical Oncology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
| | - Liyen Loh
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
| | - Laurent Gapin
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
| | - Martin D. McCarter
- Department of Surgery, Division of Surgical Oncology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
| | - Richard P. Tobin
- Department of Surgery, Division of Surgical Oncology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
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Chen D, Guo Y, Jiang J, Wu P, Zhang T, Wei Q, Huang J, Wu D. γδ T cell exhaustion: Opportunities for intervention. J Leukoc Biol 2022; 112:1669-1676. [PMID: 36000310 PMCID: PMC9804355 DOI: 10.1002/jlb.5mr0722-777r] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 07/25/2022] [Indexed: 01/05/2023] Open
Abstract
T lymphocytes are the key protective contributors in chronic infection and tumor, but experience exhaustion by persistent antigen stimulation. As an unconventional lineage of T cells, γδ T cells can rapidly response to varied infectious and tumor challenges in a non-MHC-restricted manner and play key roles in immune surveillance via pleiotropic effector functions, showing promising as candidates for cellular tumor immunotherapy. Activated γδ T cells can also acquire exhaustion signature with elevated expression of immune checkpoints, such as PD-1, decreased cytokine production, and functional impairment. However, the exhaustion features of γδ T cells are distinct from conventional αβ T cells. Here, we review the researches regarding the characteristics, heterogeneity, and mechanisms of γδ T cell exhaustion. These studies provide insights into the combined strategies to overcome the exhaustion of γδ T cells and enhance antitumor immunity. Summary sentence: Review of the characteristics, heterogeneity, and mechanisms of γδ T cell exhaustion provides insights into the combined strategies to enhance γδ T cell-based antitumor immunotherapy.
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Affiliation(s)
- Di Chen
- Department of Radiation Oncology, Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina,Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina,Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education), Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina
| | - Yinglu Guo
- Department of Radiation Oncology, Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina,Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education), Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina
| | - Jiahuan Jiang
- Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina,Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education), Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina,Department of Breast Surgery, Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina
| | - Pin Wu
- Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina,Department of Thoracic Surgery, Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina
| | - Ting Zhang
- Department of Radiation Oncology, Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina,Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina,Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education), Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina
| | - Qichun Wei
- Department of Radiation Oncology, Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina,Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education), Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina
| | - Jian Huang
- Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina,Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education), Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina,Department of Breast Surgery, Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina
| | - Dang Wu
- Department of Radiation Oncology, Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina,Key Laboratory of Tumor Microenvironment and Immune Therapy of Zhejiang Province, Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina,Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education), Second Affiliated HospitalZhejiang University School of Medicine, Zhejiang UniversityHangzhouChina
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3
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Human Vδ2 T Cells and Their Versatility for Immunotherapeutic Approaches. Cells 2022; 11:cells11223572. [PMID: 36429001 PMCID: PMC9688761 DOI: 10.3390/cells11223572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/06/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022] Open
Abstract
Gamma/delta (γδ) T cells are innate-like immune effectors that are a critical component linking innate and adaptive immune responses. They are recognized for their contribution to tumor surveillance and fight against infectious diseases. γδ T cells are excellent candidates for cellular immunotherapy due to their unique properties to recognize and destroy tumors or infected cells. They do not depend on the recognition of a single antigen but rather a broad-spectrum of diverse ligands through expression of various cytotoxic receptors. In this manuscript, we review major characteristics of the most abundant circulating γδ subpopulation, Vδ2 T cells, their immunotherapeutic potential, recent advances in expansion protocols, their preclinical and clinical applications for several infectious diseases and malignancies, and how additional modulation could enhance their therapeutic potential.
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Chen C, Chen A, Yang Y. A diversified role for γδT cells in vector-borne diseases. Front Immunol 2022; 13:965503. [PMID: 36052077 PMCID: PMC9424759 DOI: 10.3389/fimmu.2022.965503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 07/28/2022] [Indexed: 11/17/2022] Open
Abstract
Vector-borne diseases have high morbidity and mortality and are major health threats worldwide. γδT cells represent a small but essential subpopulation of T cells. They reside in most human tissues and exert important functions in both natural and adaptive immune responses. Emerging evidence have shown that the activation and expansion of γδT cells invoked by pathogens play a diversified role in the regulation of host-pathogen interactions and disease progression. A better understanding of such a role for γδT cells may contribute significantly to developing novel preventative and therapeutic strategies. Herein, we summarize recent exciting findings in the field, with a focus on the role of γδT cells in the infection of vector-borne pathogens.
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Affiliation(s)
- Chen Chen
- Department of Microbiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- *Correspondence: Chen Chen, ; Yanan Yang,
| | - Aibao Chen
- Department of Cell Biology, School of Life Sciences, Anhui Medical University, Hefei, China
| | - Yanan Yang
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- *Correspondence: Chen Chen, ; Yanan Yang,
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Cimini E, Agrati C. γδ T Cells in Emerging Viral Infection: An Overview. Viruses 2022; 14:v14061166. [PMID: 35746638 PMCID: PMC9230790 DOI: 10.3390/v14061166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/20/2022] [Accepted: 05/24/2022] [Indexed: 02/05/2023] Open
Abstract
New emerging viruses belonging to the Coronaviridae, Flaviviridae, and Filoviridae families are serious threats to public health and represent a global concern. The surveillance to monitor the emergence of new viruses and their transmission is an important target for public health authorities. Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is an excellent example of a pathogen able to cause a pandemic. In a few months, SARS-CoV-2 has spread globally from China, and it has become a world health problem. Gammadelta (γδ) T cell are sentinels of innate immunity and are able to protect the host from viral infections. They enrich many tissues, such as the skin, intestines, and lungs where they can sense and fight the microbes, thus contributing to the protective immune response. γδ T cells perform their direct antiviral activity by cytolytic and non-cytolytic mechanisms against a wide range of viruses, and they are able to orchestrate the cellular interplay between innate and acquired immunity. For their pleiotropic features, γδ T cells have been proposed as a target for immunotherapies in both cancer and viral infections. In this review, we analyzed the role of γδ T cells in emerging viral infections to define the profile of the response and to better depict their role in the host protection.
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Champagne E. Special Issue “Gamma Delta T Cells in Immune Response against Viruses”. Viruses 2022; 14:v14040736. [PMID: 35458466 PMCID: PMC9024634 DOI: 10.3390/v14040736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/25/2022] [Accepted: 03/28/2022] [Indexed: 11/16/2022] Open
Affiliation(s)
- Eric Champagne
- Infinity, Université Toulouse, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM), Université Paul Sabatier, CEDEX 03, 31024 Toulouse, France
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