1
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Liu J, Wu M, Yang Y, Wang Z, He S, Tian X, Wang H. γδ T cells and the PD-1/PD-L1 axis: a love-hate relationship in the tumor microenvironment. J Transl Med 2024; 22:553. [PMID: 38858763 PMCID: PMC11163710 DOI: 10.1186/s12967-024-05327-z] [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: 03/04/2024] [Accepted: 05/20/2024] [Indexed: 06/12/2024] Open
Abstract
Gamma delta (γδ) T cells demonstrate strong cytotoxicity against diverse cancer cell types in an MHC-independent manner, rendering them promising contenders for cancer therapy. Although amplification and adoptive transfer of γδ T cells are being evaluated in the clinic, their therapeutic efficacy remains unsatisfactory, primarily due to the influence of the immunosuppressive tumor microenvironment (TME). Currently, the utilization of targeted therapeutic antibodies against inhibitory immune checkpoint (ICP) molecules is a viable approach to counteract the immunosuppressive consequences of the TME. Notably, PD-1/PD-L1 checkpoint inhibitors are considered primary treatment options for diverse malignancies, with the objective of preserving the response of αβ T cells. However, γδ T cells also infiltrate various human cancers and are important participants in cancer immunity, thereby influencing patient prognosis. Hence, it is imperative to comprehend the reciprocal impact of the PD-1/PD-L1 axis on γδ T cells. This understanding can serve as a therapeutic foundation for improving γδ T cells adoptive transfer therapy and may offer a novel avenue for future combined immunotherapeutic approaches.
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Affiliation(s)
- Jian Liu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Min Wu
- Department of Gynecologic Oncology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yifan Yang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zixuan Wang
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shan He
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xun Tian
- Department of Obstetrics and Gynecology, Academician Expert Workstation, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China.
| | - Hui Wang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Department of Gynecologic Oncology, Zhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
- Zhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
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2
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Chen D, Mo F, Liu M, Liu L, Xing J, Xiao W, Gong Y, Tang S, Tan Z, Liang G, Xie H, Huang J, Shen J, Pan X. Characteristics of splenic PD-1 + γδT cells in Plasmodium yoelii nigeriensis infection. Immunol Res 2024; 72:383-394. [PMID: 38265549 PMCID: PMC11217126 DOI: 10.1007/s12026-023-09441-w] [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: 03/27/2023] [Accepted: 11/21/2023] [Indexed: 01/25/2024]
Abstract
Although the functions of programmed death-1 (PD-1) on αβ T cells have been extensively reported, a role for PD-1 in regulating γδT cell function is only beginning to emerge. Here, we investigated the phenotypic and functional characteristics of PD-1-expressing γδT cells, and the molecular mechanism was also explored in the Plasmodium yoelii nigeriensis (P. yoelii NSM)-infected mice. Flow cytometry and single-cell RNA sequencing (scRNA-seq) were performed. An inverse agonist of RORα, SR3335, was used to investigate the role of RORα in regulating PD-1+ γδT cells. The results indicated that γδT cells continuously upregulated PD-1 expression during the infection period. Higher levels of CD94, IL-10, CX3CR1, and CD107a; and lower levels of CD25, CD69, and CD127 were found in PD-1+ γδT cells from infected mice than in PD-1- γδT cells. Furthermore, GO enrichment analysis revealed that the marker genes in PD-1+ γδT cells were involved in autophagy and processes utilizing autophagic mechanisms. ScRNA-seq results showed that RORα was increased significantly in PD-1+ γδT cells. GSEA identified that RORα was mainly involved in the regulation of I-kappaB kinase/NF-κB signaling and the positive regulation of cytokine production. Consistent with this, PD-1-expressing γδT cells upregulated RORα following Plasmodium yoelii infection. Additionally, in vitro studies revealed that higher levels of p-p65 were found in PD-1+ γδT cells after treatment with a RORα selective synthetic inhibitor. Collectively, these data suggest that RORα-mediated attenuation of NF-κB signaling may be fundamental for PD-1-expressing γδT cells to modulate host immune responses in the spleen of Plasmodium yoelii nigeriensis-infected C57BL/6 mice, and it requires further investigation.
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Affiliation(s)
- Dianhui Chen
- Department of Infectious Diseases, Guangdong Provincial Key Laboratory of Major Obstetric Diseases; Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology; The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Feng Mo
- Department of Infectious Diseases, Guangdong Provincial Key Laboratory of Major Obstetric Diseases; Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology; The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Meiling Liu
- Clinical Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Lin Liu
- China Sino-French Hoffmann Institute, Department of basic Medical Science, Guangzhou Medical University, Guangzhou, 511436, China
| | - Junmin Xing
- China Sino-French Hoffmann Institute, Department of basic Medical Science, Guangzhou Medical University, Guangzhou, 511436, China
| | - Wei Xiao
- China Sino-French Hoffmann Institute, Department of basic Medical Science, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yumei Gong
- China Sino-French Hoffmann Institute, Department of basic Medical Science, Guangzhou Medical University, Guangzhou, 511436, China
| | - Shanni Tang
- Department of Infectious Diseases, Guangdong Provincial Key Laboratory of Major Obstetric Diseases; Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology; The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhengrong Tan
- China Sino-French Hoffmann Institute, Department of basic Medical Science, Guangzhou Medical University, Guangzhou, 511436, China
| | - Guikuan Liang
- China Sino-French Hoffmann Institute, Department of basic Medical Science, Guangzhou Medical University, Guangzhou, 511436, China
| | - Hongyan Xie
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou, China
| | - Jun Huang
- China Sino-French Hoffmann Institute, Department of basic Medical Science, Guangzhou Medical University, Guangzhou, 511436, China.
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou, China.
| | - Juan Shen
- Kingmed School of Laboratory Medicine, Guangzhou Medical University, Guangzhou, Guangdong, 510182, People's Republic of China.
| | - Xingfei Pan
- Department of Infectious Diseases, Guangdong Provincial Key Laboratory of Major Obstetric Diseases; Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology; The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
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3
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Li Y, Sharma A, Schmidt-Wolf IGH. Evolving insights into the improvement of adoptive T-cell immunotherapy through PD-1/PD-L1 blockade in the clinical spectrum of lung cancer. Mol Cancer 2024; 23:80. [PMID: 38659003 PMCID: PMC11040940 DOI: 10.1186/s12943-023-01926-4] [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: 07/28/2023] [Accepted: 12/20/2023] [Indexed: 04/26/2024] Open
Abstract
Undeniably, cancer immunotherapies have expanded the spectrum of cancer treatment, however, some patients do not respond to immunotherapies. This scenario is no different for lung cancer, whose two main types, non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC), still pose a serious clinical challenge. Adoptive T-cell therapies (ATC), which primarily include cytokine-induced killer (CIK) cell therapy, chimeric antigen receptor T-cell (CAR T-cell) therapy and γδ-T-cell therapy, strengthen the patient's immune system in combating cancer. Combining ATC with immune checkpoint inhibitors (ICI) further enhances the effectiveness of this approach to eradicate cancer. With a particular emphasis on CIK cell therapy, which recently completed 30 years, we highlight the role of the PD-1/PD-L1 axis in NSCLC and SCLC. Besides, we provide insights into the potential synergies of PD-1/PD-L1 inhibitors with adoptive T-cell immunotherapy in reshaping the treatment paradigm for lung cancer.
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Affiliation(s)
- Yutao Li
- Department of Integrated Oncology, Center for Integrated Oncology (CIO) Bonn, University Hospital Bonn, Venusberg Campus 1, D-53127,, Bonn, Germany
| | - Amit Sharma
- Department of Integrated Oncology, Center for Integrated Oncology (CIO) Bonn, University Hospital Bonn, Venusberg Campus 1, D-53127,, Bonn, Germany
- Department of Neurosurgery, University Hospital Bonn, Bonn, Germany
| | - Ingo G H Schmidt-Wolf
- Department of Integrated Oncology, Center for Integrated Oncology (CIO) Bonn, University Hospital Bonn, Venusberg Campus 1, D-53127,, Bonn, Germany.
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4
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Rimailho L, Faria C, Domagala M, Laurent C, Bezombes C, Poupot M. γδ T cells in immunotherapies for B-cell malignancies. Front Immunol 2023; 14:1200003. [PMID: 37426670 PMCID: PMC10325712 DOI: 10.3389/fimmu.2023.1200003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/11/2023] [Indexed: 07/11/2023] Open
Abstract
Despite the advancements in therapy for B cell malignancies and the increase in long-term survival of patients, almost half of them lead to relapse. Combinations of chemotherapy and monoclonal antibodies such as anti-CD20 leads to mixed outcomes. Recent developments in immune cell-based therapies are showing many encouraging results. γδ T cells, with their potential of functional plasticity and their anti-tumoral properties, emerged as good candidates for cancer immunotherapies. The representation and the diversity of γδ T cells in tissues and in the blood, in physiological conditions or in B-cell malignancies such as B cell lymphoma, chronic lymphoblastic leukemia or multiple myeloma, provides the possibility to manipulate them with immunotherapeutic approaches for these patients. In this review, we summarized several strategies based on the activation and tumor-targeting of γδ T cells, optimization of expansion protocols, and development of gene-modified γδ T cells, using combinations of antibodies and therapeutic drugs and adoptive cell therapy with autologous or allogenic γδ T cells following potential genetic modifications.
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Affiliation(s)
- Léa Rimailho
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm-Univ. Toulouse III Paul Sabatier-ERL5294 CNRS, Toulouse, France
| | - Carla Faria
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm-Univ. Toulouse III Paul Sabatier-ERL5294 CNRS, Toulouse, France
| | - Marcin Domagala
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm-Univ. Toulouse III Paul Sabatier-ERL5294 CNRS, Toulouse, France
| | - Camille Laurent
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm-Univ. Toulouse III Paul Sabatier-ERL5294 CNRS, Toulouse, France
- Department of Pathology, Institut Universitaire du Cancer de Toulouse - Oncopôle, Toulouse, France
| | - Christine Bezombes
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm-Univ. Toulouse III Paul Sabatier-ERL5294 CNRS, Toulouse, France
| | - Mary Poupot
- Cancer Research Center of Toulouse (CRCT), UMR1037 Inserm-Univ. Toulouse III Paul Sabatier-ERL5294 CNRS, Toulouse, France
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5
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Moran B, Davern M, Reynolds JV, Donlon NE, Lysaght J. The impact of histone deacetylase inhibitors on immune cells and implications for cancer therapy. Cancer Lett 2023; 559:216121. [PMID: 36893893 DOI: 10.1016/j.canlet.2023.216121] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/27/2023] [Accepted: 03/07/2023] [Indexed: 03/09/2023]
Abstract
Many cancers possess the ability to suppress the immune response to malignant cells, thus facilitating tumour growth and invasion, and this has fuelled research to reverse these mechanisms and re-activate the immune system with consequent important therapeutic benefit. One such approach is to use histone deacetylase inhibitors (HDACi), a novel class of targeted therapies, which manipulate the immune response to cancer through epigenetic modification. Four HDACi have recently been approved for clinical use in malignancies including multiple myeloma and T-cell lymphoma. Most research in this context has focussed on HDACi and tumour cells, however, little is known about their impact on the cells of the immune system. Additionally, HDACi have been shown to impact the mechanisms by which other anti-cancer therapies exert their effects by, for example, increasing accessibility to exposed DNA through chromatin relaxation, impairing DNA damage repair pathways and increasing immune checkpoint receptor expression. This review details the effects of HDACi on immune cells, highlights the variability in these effects depending on experimental design, and provides an overview of clinical trials investigating the combination of HDACi with chemotherapy, radiotherapy, immunotherapy and multimodal regimens.
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Affiliation(s)
- Brendan Moran
- Cancer Immunology and Immunotherapy Group, Trinity St. James's Cancer Institute, Department of Surgery, School of Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Ireland; Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
| | - Maria Davern
- Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | | | - Noel E Donlon
- Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
| | - Joanne Lysaght
- Cancer Immunology and Immunotherapy Group, Trinity St. James's Cancer Institute, Department of Surgery, School of Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Ireland.
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6
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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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7
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Bhat J, Placek K, Faissner S. Contemplating Dichotomous Nature of Gamma Delta T Cells for Immunotherapy. Front Immunol 2022; 13:894580. [PMID: 35669772 PMCID: PMC9163397 DOI: 10.3389/fimmu.2022.894580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 04/22/2022] [Indexed: 11/13/2022] Open
Abstract
γδ T cells are unconventional T cells, distinguished from αβ T cells in a number of functional properties. Being small in number compared to αβ T cells, γδ T cells have surprised us with their pleiotropic roles in various diseases. γδ T cells are ambiguous in nature as they can produce a number of cytokines depending on the (micro) environmental cues and engage different immune response mechanisms, mainly due to their epigenetic plasticity. Depending on the disease condition, γδ T cells contribute to beneficial or detrimental response. In this review, we thus discuss the dichotomous nature of γδ T cells in cancer, neuroimmunology and infectious diseases. We shed light on the importance of equal consideration for systems immunology and personalized approaches, as exemplified by changes in metabolic requirements. While providing the status of immunotherapy, we will assess the metabolic (and other) considerations for better outcome of γδ T cell-based treatments.
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Affiliation(s)
- Jaydeep Bhat
- Department of Molecular Immunology, Ruhr-University Bochum, Bochum, Germany
| | - Katarzyna Placek
- Department of Molecular Immunology and Cell Biology, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - Simon Faissner
- Department of Neurology, Ruhr-University Bochum, St. Josef-Hospital, Bochum, Germany
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8
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Schönefeldt S, Wais T, Herling M, Mustjoki S, Bekiaris V, Moriggl R, Neubauer HA. The Diverse Roles of γδ T Cells in Cancer: From Rapid Immunity to Aggressive Lymphoma. Cancers (Basel) 2021; 13:6212. [PMID: 34944832 PMCID: PMC8699114 DOI: 10.3390/cancers13246212] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 12/02/2021] [Accepted: 12/03/2021] [Indexed: 12/13/2022] Open
Abstract
γδ T cells are unique players in shaping immune responses, lying at the intersection between innate and adaptive immunity. Unlike conventional αβ T cells, γδ T cells largely populate non-lymphoid peripheral tissues, demonstrating tissue specificity, and they respond to ligands in an MHC-independent manner. γδ T cells display rapid activation and effector functions, with a capacity for cytotoxic anti-tumour responses and production of inflammatory cytokines such as IFN-γ or IL-17. Their rapid cytotoxic nature makes them attractive cells for use in anti-cancer immunotherapies. However, upon transformation, γδ T cells can give rise to highly aggressive lymphomas. These rare malignancies often display poor patient survival, and no curative therapies exist. In this review, we discuss the diverse roles of γδ T cells in immune surveillance and response, with a particular focus on cancer immunity. We summarise the intriguing dichotomy between pro- and anti-tumour functions of γδ T cells in solid and haematological cancers, highlighting the key subsets involved. Finally, we discuss potential drivers of γδ T-cell transformation, summarising the main γδ T-cell lymphoma/leukaemia entities, their clinical features, recent advances in mapping their molecular and genomic landscapes, current treatment strategies and potential future targeting options.
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Affiliation(s)
- Susann Schönefeldt
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, 1210 Vienna, Austria; (S.S.); (T.W.); (R.M.)
| | - Tamara Wais
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, 1210 Vienna, Austria; (S.S.); (T.W.); (R.M.)
| | - Marco Herling
- Department of Hematology, Cellular Therapy and Hemostaseology, University of Leipzig, 04103 Leipzig, Germany;
| | - Satu Mustjoki
- Hematology Research Unit Helsinki, Helsinki University Hospital Comprehensive Cancer Center, 00290 Helsinki, Finland;
- iCAN Digital Precision Cancer Medicine Flagship, 00014 Helsinki, Finland
- Translational Immunology Research Program and Department of Clinical Chemistry and Hematology, University of Helsinki, 00014 Helsinki, Finland
| | - Vasileios Bekiaris
- Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark;
| | - Richard Moriggl
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, 1210 Vienna, Austria; (S.S.); (T.W.); (R.M.)
| | - Heidi A. Neubauer
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, 1210 Vienna, Austria; (S.S.); (T.W.); (R.M.)
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9
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Dogan S, Terzioglu E, Ucar S. Innate immune response against HPV: Possible crosstalking with endocervical γδ T cells. J Reprod Immunol 2021; 148:103435. [PMID: 34741834 DOI: 10.1016/j.jri.2021.103435] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 12/26/2022]
Abstract
Cervical carcinoma is significantly associated with the human papillomavirus (HPV). Persistent infection with high risk-HPV is necessary but not sufficient for the development of cervical cancer. It is not fully understood which immunological mechanisms lead to persistence in some patients. During the life cycle, HPV uses excellent immune evasion mechanisms. Keratinocytes, Langerhans cells (LC), dendritic cells (DC), tissue-resident macrophages, and intraepithelial gamma-delta T cells (γδ T cells) are cellular components of the mucosal immune defense of the female genital tract against HPV. γδ T cells, the prototype of unconventional T cells, play a major role in the first line defense of epithelial barrier protection. γδ T cells connect the innate and adaptive immunity and behave like a guardian of the epithelium against any form of damage such as trauma and infection. Any changes in γδ T cell distribution and functional capability may have a role in persistent HPV infection and cervical carcinogenesis in the early phase. Poor stimulation and maturation of APCs (LC/DC) might lead to persistent HPV infection which all point out pivotal role of γδ T cells in HPV persistence. If such an intriguing link is proven, γδ T cells can be used in potential therapeutics against HPV in infected patients.
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Affiliation(s)
- Selen Dogan
- Akdeniz University, Department of Gynecologic Oncology, Antalya, Turkey.
| | - Ender Terzioglu
- Akdeniz University, Department of Rheumatology, Antalya, Turkey
| | - Selda Ucar
- Akdeniz University, Department of Medical Oncology, Antalya, Turkey
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10
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Madhok A, Bhat SA, Philip CS, Sureshbabu SK, Chiplunkar S, Galande S. Transcriptome Signature of Vγ9Vδ2 T Cells Treated With Phosphoantigens and Notch Inhibitor Reveals Interplay Between TCR and Notch Signaling Pathways. Front Immunol 2021; 12:660361. [PMID: 34526984 PMCID: PMC8435775 DOI: 10.3389/fimmu.2021.660361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 08/05/2021] [Indexed: 11/13/2022] Open
Abstract
Gamma delta (γδ) T cells, especially the Vγ9Vδ2 subtype, have been implicated in cancer therapy and thus have earned the spotlight in the past decade. Although one of the most important properties of γδ T cells is their activation by phosphoantigens, which are intermediates of the Mevalonate and Rohmer pathway of isoprenoid biosynthesis, such as IPP and HDMAPP, respectively, the global effects of such treatments on Vγ9Vδ2 T cells remain elusive. Here, we used the high-throughput transcriptomics approach to elucidate the transcriptional changes in human Vγ9Vδ2 T cells upon HDMAPP, IPP, and anti-CD3 treatments in combination with interleukin 2 (IL2) cytokine stimulation. These activation treatments exhibited a dramatic surge in transcription with distinctly enriched pathways. We further assessed the transcriptional dynamics upon inhibition of Notch signaling coupled with activation treatments. We observed that the metabolic processes are most affected upon Notch inhibition via GSI-X. The key effector genes involved in gamma-delta cytotoxic function were downregulated upon Notch blockade even in combination with activation treatment, suggesting a transcriptional crosstalk between T-cell receptor (TCR) signaling and Notch signaling in Vγ9Vδ2 T cells. Collectively, we demonstrate the effect of the activation of TCR signaling by phosphoantigens or anti-CD3 on the transcriptional status of Vγ9Vδ2 T cells along with IL2 stimulation. We further show that the blockade of Notch signaling antagonistically affects this activation.
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Affiliation(s)
- Ayush Madhok
- Centre of Excellence in Epigenetics, Department of Biology, Indian Institute of Science and Education and Research (IISER), Pune, India
| | - Sajad Ahmad Bhat
- Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai, India.,Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Chinna Susan Philip
- Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai, India.,Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Shalini Kashipathi Sureshbabu
- Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai, India.,Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Shubhada Chiplunkar
- Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai, India.,Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Sanjeev Galande
- Centre of Excellence in Epigenetics, Department of Biology, Indian Institute of Science and Education and Research (IISER), Pune, India.,Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Greater Noida, India
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11
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Lu H, Ma Y, Wang M, Shen J, Wu H, Li J, Gao N, Gu Y, Zhang X, Zhang G, Shi T, Chen W. B7-H3 confers resistance to Vγ9Vδ2 T cell-mediated cytotoxicity in human colon cancer cells via the STAT3/ULBP2 axis. Cancer Immunol Immunother 2020; 70:1213-1226. [PMID: 33119798 DOI: 10.1007/s00262-020-02771-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 10/15/2020] [Indexed: 12/13/2022]
Abstract
Immunotherapy based on γδT cells has limited efficiency in solid tumors, including colon cancer (CC). The immune evasion of tumor cells may be the main cause of the difficulties of γδT cell-based treatment. In the present study, we explored whether and how B7-H3 regulates the resistance of CC cells to the cytotoxicity of Vγ9Vδ2 (Vδ2) T cells. We observed that B7-H3 overexpression promoted, while B7-H3 knockdown inhibited, CC cell resistance to the killing effect of Vδ2 T cells in vitro and in vivo. Mechanistically, we showed that B7-H3-mediated CC cell resistance to the cytotoxicity of Vδ2 T cells involved a molecular pathway comprising STAT3 activation and decreased ULBP2 expression. ULBP2 blockade or knockdown abolished the B7-H3 silencing-induced increase in the cytotoxicity of Vδ2 T cells to CC cells. Furthermore, cryptotanshinone, a STAT3 phosphorylation inhibitor, reversed the B7-H3 overexpression-induced decrease in ULBP2 expression and attenuated the killing effect of Vδ2 T cells on CC cells. Moreover, there was a negative correlation between the expression of B7-H3 and ULBP2 in the tumor tissues of CC patients. Our results suggest that the B7-H3-mediated STAT3/ULBP2 axis may be a potential candidate target for improving the efficiency of γδT cell-based immunotherapy in CC.
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Affiliation(s)
- Huimin Lu
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, 708 Renmin Road, Suzhou, 215100, Jiangsu, China
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, China
- Jiangsu Key Laboratory of Clinical Immunology, Soochow University, 708 Renmin Road, Suzhou, China
| | - Yanchao Ma
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, China
- Jiangsu Key Laboratory of Clinical Immunology, Soochow University, 708 Renmin Road, Suzhou, China
- Jiangsu Key Laboratory of Gastrointestinal Tumor Immunology, The First Affiliated Hospital of Soochow University, 708 Renmin Road, Suzhou, China
| | - Mingyuan Wang
- Suzhou Red Cross Blood Center, 355 Shizi Road, Suzhou, China
| | - Jin Shen
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, China
| | - Hongya Wu
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, 708 Renmin Road, Suzhou, 215100, Jiangsu, China
| | - Juntao Li
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, China
| | - Nan Gao
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, China
| | - Yanzheng Gu
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, 708 Renmin Road, Suzhou, 215100, Jiangsu, China
| | - Xueguang Zhang
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, 708 Renmin Road, Suzhou, 215100, Jiangsu, China
| | - Guangbo Zhang
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, 708 Renmin Road, Suzhou, 215100, Jiangsu, China
| | - Tongguo Shi
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, 708 Renmin Road, Suzhou, 215100, Jiangsu, China.
- Jiangsu Key Laboratory of Clinical Immunology, Soochow University, 708 Renmin Road, Suzhou, China.
- Jiangsu Key Laboratory of Gastrointestinal Tumor Immunology, The First Affiliated Hospital of Soochow University, 708 Renmin Road, Suzhou, China.
| | - Weichang Chen
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, 708 Renmin Road, Suzhou, 215100, Jiangsu, China.
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, China.
- Jiangsu Key Laboratory of Clinical Immunology, Soochow University, 708 Renmin Road, Suzhou, China.
- , 50 Donghuan Road, Suzhou, 215100, Jiangsu, China.
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12
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Lu H, Shi T, Wang M, Li X, Gu Y, Zhang X, Zhang G, Chen W. B7-H3 inhibits the IFN-γ-dependent cytotoxicity of Vγ9Vδ2 T cells against colon cancer cells. Oncoimmunology 2020; 9:1748991. [PMID: 32363121 PMCID: PMC7185217 DOI: 10.1080/2162402x.2020.1748991] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 02/12/2020] [Accepted: 03/22/2020] [Indexed: 12/19/2022] Open
Abstract
The immunoregulatory protein B7-H3, a member of the B7 family, has been confirmed to be highly expressed in colon cancer. However, the exact influence of B7-H3 on the features and antitumor ability of γδT cells in colon cancer remains unknown. In the present study, we investigated that the proportions of B7-H3+ γδT cells were distinctly increased in the peripheral blood and tumor tissues of colon cancer patients. B7-H3 blockade or knockdown promoted proliferation, inhibited cell apoptosis and induced the expression of activation markers (CD25 and CD69) on Vδ2 T cells. In contrast, treatment with the B7-H3 agonist 4H7 had the opposite effect. Furthermore, B7-H3 suppressed IFN-γ expression by inhibiting T-bet in Vδ2 T cells. Moreover, B7-H3 mediated the inhibition of Vδ2 T cell cytotoxicity via the downregulation of IFN-γ and perforin/granzyme B expression. More importantly, blocking the B7-H3 function significantly enhanced the cytotoxicity of Vδ2 T cells against colon cancer cells in vivo. Therefore, the inhibition or blockade of B7-H3 is a potential immunotherapeutic approach for colon cancer.
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Affiliation(s)
- Huimin Lu
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Jiangsu Institute of Clinical Immunology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, China
| | - Tongguo Shi
- Jiangsu Institute of Clinical Immunology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Gastrointestinal Tumor Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | | | - Xiaomi Li
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yanzheng Gu
- Jiangsu Institute of Clinical Immunology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Gastrointestinal Tumor Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xueguang Zhang
- Jiangsu Institute of Clinical Immunology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Gastrointestinal Tumor Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Guangbo Zhang
- Jiangsu Institute of Clinical Immunology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Gastrointestinal Tumor Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Weichang Chen
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Jiangsu Institute of Clinical Immunology, the First Affiliated Hospital of Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Gastrointestinal Tumor Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
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13
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Silva-Santos B, Mensurado S, Coffelt SB. γδ T cells: pleiotropic immune effectors with therapeutic potential in cancer. Nat Rev Cancer 2019; 19:392-404. [PMID: 31209264 PMCID: PMC7614706 DOI: 10.1038/s41568-019-0153-5] [Citation(s) in RCA: 232] [Impact Index Per Article: 46.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The potential of cancer immunotherapy relies on the mobilization of immune cells capable of producing antitumour cytokines and effectively killing tumour cells. These are major attributes of γδ T cells, a lymphoid lineage that is often underestimated despite its major role in tumour immune surveillance, which has been established in a variety of preclinical cancer models. This situation notwithstanding, in particular instances the tumour microenvironment seemingly mobilizes γδ T cells with immunosuppressive or tumour-promoting functions, thus emphasizing the importance of regulating γδ T cell responses in order to realize their translation into effective cancer immunotherapies. In this Review we outline both seminal work and recent advances in our understanding of how γδ T cells participate in tumour immunity and how their functions are regulated in experimental models of cancer. We also discuss the current strategies aimed at maximizing the therapeutic potential of human γδ T cells, on the eve of their exploration in cancer clinical trials that may position them as key players in cancer immunotherapy.
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Affiliation(s)
- Bruno Silva-Santos
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.
| | - Sofia Mensurado
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Seth B Coffelt
- Institute of Cancer Sciences, University of Glasgow and Cancer Research UK Beatson Institute, Glasgow, UK.
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14
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Li X, Guo Y, Kuang X, Zhao L, Li H, Cheng B, Wang W, Zhang Z, Liu P, Wang J. Histone deacetylase inhibitor LMK-235-mediated HO-1 expression induces apoptosis in multiple myeloma cells via the JNK/AP-1 signaling pathway. Life Sci 2019; 223:146-157. [PMID: 30876940 DOI: 10.1016/j.lfs.2019.03.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 02/23/2019] [Accepted: 03/07/2019] [Indexed: 11/18/2022]
Abstract
AIMS Histone deacetylase inhibitors (HDACis) are promising anticancer drugs that open new areas of epigenetic drug discovery. Multiple myeloma (MM) is a malignant tumor of the blood system that is difficult to cure and often relapses. Here, we investigated the in vitro effects of a novel HDACi, LMK-235, on MM cells, and explored the underlying mechanisms. MAIN METHODS Real-time PCR and western blot were used to measure the expression of HDAC4 and HO-1 in MM cells treated with LMK-235. si-RNA was used to transfect MM cells. Hemin or ZnPP was combined to regulate heme oxygenase-1 (HO-1), and a pathway inhibitor was added to measure changes in the JNK/AP-1 signaling pathway. Apoptosis and proliferation were assessed by flow cytometry and CCK-8 assay, respectively. KEY FINDINGS We found that LMK-235, a selective inhibitor of class IIA HDAC4/5, induced apoptosis of MM cells by downregulating HO-1 that is closely related to HDAC4. LMK-235 increased phosphorylation of JNK and c -Jun in MM cells. Downregulation of HO-1 expression in combination with LMK-235 expression further activated phosphorylation of JNK and c-Jun and induced apoptosis in MM cells. When the JNK inhibitor SP600125 was used in combination, the apoptosis phenomenon was reversed. However, when HO-1 was upregulated, LMK-235-mediated phosphorylation of JNK and c-Jun was inhibited, and apoptosis of MM cells began to decrease. SIGNIFICANCE These data suggest that LMK-235 has potent anti-myeloma activity through regulation of HO-1-induced apoptosis via the JNK/AP-1 pathway. This provides a new concept for the treatment of multiple myeloma.
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Affiliation(s)
- Xinyao Li
- Guizhou Medical University, Guiyang, Guizhou, China; Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center, Guiyang, Guizhou, China
| | - Yongling Guo
- Guizhou Medical University, Guiyang, Guizhou, China; Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center, Guiyang, Guizhou, China
| | - Xingyi Kuang
- Guizhou Medical University, Guiyang, Guizhou, China; Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center, Guiyang, Guizhou, China
| | - Lu Zhao
- Guizhou Medical University, Guiyang, Guizhou, China; Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center, Guiyang, Guizhou, China
| | - Hongsong Li
- Linyi Central Hospital, Linyi, Shandong, China
| | - Bingqing Cheng
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center, Guiyang, Guizhou, China
| | - Weili Wang
- Guizhou Medical University, Guiyang, Guizhou, China; Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center, Guiyang, Guizhou, China
| | - Zhaoyuan Zhang
- Guizhou Medical University, Guiyang, Guizhou, China; Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center, Guiyang, Guizhou, China
| | - Ping Liu
- Guizhou Medical University, Guiyang, Guizhou, China; Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center, Guiyang, Guizhou, China
| | - Jishi Wang
- Guizhou Medical University, Guiyang, Guizhou, China; Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China; Guizhou Province Laboratory of Haematopoietic Stem Cell Transplantation Center, Guiyang, Guizhou, China.
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15
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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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