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Ren Y, Ying Q, Chen Y, Liao C, Li A, Ye Q. HLA-DRB5 Overexpression Promotes Platelet Reduction in Immune Thrombocytopenia Mice Model by Facilitating MHC-II-Mediated Antigen Presentation. Acta Haematol 2024:1-9. [PMID: 38744253 DOI: 10.1159/000538749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 04/04/2024] [Indexed: 05/16/2024]
Abstract
INTRODUCTION Major histocompatibility complex II (MHC-II)-mediated antigen presentation contributes to the pathogenesis of immune thrombocytopenia (ITP). Human leukocyte antigen (HLA)-DRB5 is an MHC-II molecule and this study aims to investigate its role and mechanisms in ITP development. METHODS Guinea pig anti-mouse platelet (PLT) serum-induced ITP mice received tail vein injection of HLA-DRB5 overexpressing adenoviral vector/immune receptor expressed on myeloid cells-1 (IREM-1) monoclonal antibody (mAb). PLT count changes in mice blood were assessed by a hematology analyzer. MHC-II/CD80/CD86 expression in mice blood was measured by quantitative real-time-PCR and immunofluorescence assay. CD8+ T-cell proportion in mice blood was detected by flow cytometry. RESULTS HLA-DRB5 overexpression exacerbated PLT reduction since the 5th day of the establishment of ITP mice model and enhanced MHC-II/CD80/CD86 expression upregulation as well as CD8+ T-cell ratio elevation in the blood of ITP mice, while its effects were reversed by IREM-1 mAb. CONCLUSION HLA-DRB5 overexpression upregulates MHC-II-mediated antigen presentation to CD8+ T cells, thus lowering PLT count in the ITP mice model.
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Affiliation(s)
- Yujuan Ren
- Department of Pediatrics, Ningbo First Hospital, Ningbo, China
- NBU Health Science Center, Ningbo, China
| | - Qianqian Ying
- Department of Pediatrics, Ningbo First Hospital, Ningbo, China
| | - Ying Chen
- Department of Pediatrics, Ningbo First Hospital, Ningbo, China
| | - Cong Liao
- Department of Pediatrics, Ningbo First Hospital, Ningbo, China
| | - Anrong Li
- Department of Pediatrics, Ningbo First Hospital, Ningbo, China
| | - Qidong Ye
- Department of Pediatrics, Ningbo First Hospital, Ningbo, China
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2
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Sachdeva M, Taneja S, Sachdeva N. Stem cell-like memory T cells: Role in viral infections and autoimmunity. World J Immunol 2023; 13:11-22. [DOI: 10.5411/wji.v13.i2.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/06/2023] [Accepted: 07/27/2023] [Indexed: 08/14/2023] Open
Abstract
Stem cell-like memory T (TSCM) cells possess stem cell properties including multipotency and self-renewal and are being recognized as emerging players in various human diseases. Advanced technologies such as multiparametric flowcytometry and single cell sequencing have enabled their identification and molecular characterization. In case of chronic viral diseases such as human immunodeficiency virus-1, CD4+ TSCM cells, serve as major reservoirs of the latent virus. However, during immune activation and functional exhaustion of effector T cells, these cells also possess the potential to replenish the pool of functional effector cells to curtail the infection. More recently, these cells are speculated to play important role in protective immunity following acute viral infections such as coronavirus disease 2019 and might be amenable for therapeutics by ex vivo expansion. Similarly, studies are also investigating their pathological role in driving autoimmune responses. However, there are several gaps in the understanding of the role of TSCM cells in viral and autoimmune diseases to make them potential therapeutic targets. In this minireview, we have attempted an updated compilation of the dyadic role of these complex TSCM cells during such human diseases along with their biology and transcriptional programs.
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Affiliation(s)
- Meenakshi Sachdeva
- Department of Pediatrics, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India
| | - Shivangi Taneja
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India
| | - Naresh Sachdeva
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India
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3
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Fazeli P, Kalani M, Hosseini M. T memory stem cell characteristics in autoimmune diseases and their promising therapeutic values. Front Immunol 2023; 14:1204231. [PMID: 37497231 PMCID: PMC10366905 DOI: 10.3389/fimmu.2023.1204231] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/16/2023] [Indexed: 07/28/2023] Open
Abstract
Memory T cells are conventionally subdivided into T central memory (TCM) and T effector memory (TEM) cells. However, a new subset of memory T cells named T memory stem cell (TSCM) cells has been recognized that possesses capabilities of both TCM and TEM cells including lymphoid homing and performing effector roles through secretion of cytokines such as interleukin-2 (IL-2) and interferon-gamma (IFN-γ). The TSCM subset has some biological properties including stemness, antigen independency, high proliferative potential, signaling pathway and lipid metabolism. On the other hand, memory T cells are considered one of the principal culprits in the pathogenesis of autoimmune diseases. TSCM cells are responsible for developing long-term defensive immunity against different foreign antigens, alongside tumor-associated antigens, which mainly derive from self-antigens. Hence, antigen-specific TSCM cells can produce antitumor responses that are potentially able to trigger autoimmune activities. Therefore, we reviewed recent evidence on TSCM cell functions in autoimmune disorders including type 1 diabetes, systemic lupus erythematosus, rheumatoid arthritis, acquired aplastic anemia, immune thrombocytopenia, and autoimmune uveitis. We also introduced TSCM cell lineage as an innovative prognostic biomarker and a promising therapeutic target in autoimmune settings.
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Affiliation(s)
- Pooria Fazeli
- Trauma Research Center, Shahid Rajaee (Emtiaz) Trauma Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehdi Kalani
- Department of Immunology, Prof. Alborzi Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Hosseini
- Trauma Research Center, Shahid Rajaee (Emtiaz) Trauma Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
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4
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Chi X, Luo S, Ye P, Hwang WL, Cha JH, Yan X, Yang WH. T-cell exhaustion and stemness in antitumor immunity: Characteristics, mechanisms, and implications. Front Immunol 2023; 14:1104771. [PMID: 36891319 PMCID: PMC9986432 DOI: 10.3389/fimmu.2023.1104771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 02/07/2023] [Indexed: 02/22/2023] Open
Abstract
T cells play a crucial role in the regulation of immune response and are integral to the efficacy of cancer immunotherapy. Because immunotherapy has emerged as a promising treatment for cancer, increasing attention has been focused on the differentiation and function of T cells in immune response. In this review, we describe the research progress on T-cell exhaustion and stemness in the field of cancer immunotherapy and summarize advances in potential strategies to intervene and treat chronic infection and cancer by reversing T-cell exhaustion and maintaining and increasing T-cell stemness. Moreover, we discuss therapeutic strategies to overcome T-cell immunodeficiency in the tumor microenvironment and promote continuous breakthroughs in the anticancer activity of T cells.
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Affiliation(s)
- Xiaoxia Chi
- Affiliated Cancer Hospital & Institute and Key Laboratory for Cell Homeostasis and Cancer Research of Guangdong Higher Education Institutes, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Shahang Luo
- Affiliated Cancer Hospital & Institute and Key Laboratory for Cell Homeostasis and Cancer Research of Guangdong Higher Education Institutes, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Peng Ye
- Department of Infectious Diseases, Guangzhou Panyu Central Hospital, Guangzhou, Guangdong, China
| | - Wei-Lun Hwang
- Department of Biotechnology and Laboratory Science in Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Cancer Progression Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Jong-Ho Cha
- Department of Biomedical Science, College of Medicine, and Program in Biomedical Sciences and Engineering, Inha University, Incheon, Republic of Korea
| | - Xiuwen Yan
- Affiliated Cancer Hospital & Institute and Key Laboratory for Cell Homeostasis and Cancer Research of Guangdong Higher Education Institutes, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wen-Hao Yang
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
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5
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Fazeli P, Talepoor AG, Faghih Z, Gholijani N, Ataollahi MR, Ali‐Hassanzadeh M, Moravej H, Kalantar K. The frequency of CD4+ and CD8+ circulating T stem cell memory in type 1 diabetes. Immun Inflamm Dis 2022; 10:e715. [PMID: 36169248 PMCID: PMC9500591 DOI: 10.1002/iid3.715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 08/27/2022] [Accepted: 09/13/2022] [Indexed: 11/07/2022] Open
Abstract
Introduction Methods Results Conclusion
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Affiliation(s)
- Pooriya Fazeli
- Department of Immunology School of Medicine Shiraz University of Medical Sciences Shiraz Iran
| | - Atefe Ghamar Talepoor
- Department of Immunology School of Medicine Shiraz University of Medical Sciences Shiraz Iran
| | - Zahra Faghih
- Shiraz Institute for Cancer Research School of Medicine Shiraz University of Medical Sciences Shiraz Iran
| | - Nasser Gholijani
- Autoimmune Diseases Research Center Shiraz University of Medical Sciences Shiraz Iran
| | | | | | - Hossein Moravej
- Department of Pediatrics School of Medicine Shiraz University of Medical Sciences Shiraz Iran
| | - Kurosh Kalantar
- Department of Immunology School of Medicine Shiraz University of Medical Sciences Shiraz Iran
- Autoimmune Diseases Research Center Shiraz University of Medical Sciences Shiraz Iran
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6
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Stem cell like memory T cells: A new paradigm in cancer immunotherapy. Clin Immunol 2022; 241:109078. [PMID: 35840054 DOI: 10.1016/j.clim.2022.109078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 07/04/2022] [Accepted: 07/09/2022] [Indexed: 11/03/2022]
Abstract
Stem cell like memory T (TSCM) cells have emerged as the apex of memory T cell differentiation for their properties of self-renewal and replenishing progenies. With potent long-term persistence, proliferative capacity and antitumor activity, TSCM cells were thought to be the ideal candidate for cancer immunotherapies. Several strategies have been proposed, such as manipulations of cytokines, metabolic factors, signal pathways, and T cell receptor signal intensity, to induce more TSCM cells in vitro, in the hope that they could reach a clinical order of magnitude to provide more long-lasting and effective anti-tumor effects in vivo. In this review, we summarized the differentiation characteristics of TSCM cells and strategies to generate more TSCM cells. We focused on their roles and application in the cancer immunotherapy especially in adoptive cell transfer therapy and cancer therapeutic vaccines, and hopefully provided clues for future understanding and researches.
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7
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La Manna MP, Shekarkar Azgomi M, Tamburini B, Badami GD, Mohammadnezhad L, Dieli F, Caccamo N. Phenotypic and Immunometabolic Aspects on Stem Cell Memory and Resident Memory CD8+ T Cells. Front Immunol 2022; 13:884148. [PMID: 35784300 PMCID: PMC9247337 DOI: 10.3389/fimmu.2022.884148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 05/19/2022] [Indexed: 11/13/2022] Open
Abstract
The immune system, smartly and surprisingly, saves the exposure of a particular pathogen in its memory and reacts to the pathogen very rapidly, preventing serious diseases.Immunologists have long been fascinated by understanding the ability to recall and respond faster and more vigorously to a pathogen, known as “memory”.T-cell populations can be better described by using more sophisticated techniques to define phenotype, transcriptional and epigenetic signatures and metabolic pathways (single-cell resolution), which uncovered the heterogeneity of the memory T-compartment. Phenotype, effector functions, maintenance, and metabolic pathways help identify these different subsets. Here, we examine recent developments in the characterization of the heterogeneity of the memory T cell compartment. In particular, we focus on the emerging role of CD8+ TRM and TSCM cells, providing evidence on how their immunometabolism or modulation can play a vital role in their generation and maintenance in chronic conditions such as infections or autoimmune diseases.
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Affiliation(s)
- Marco Pio La Manna
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR) Azienda Ospedaliera Universitaria Policlinico (A.O.U.P.) Paolo Giaccone, University of Palermo, Palermo, Italy
- Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.), University of Palermo, Palermo, Italy
| | - Mojtaba Shekarkar Azgomi
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR) Azienda Ospedaliera Universitaria Policlinico (A.O.U.P.) Paolo Giaccone, University of Palermo, Palermo, Italy
- Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.), University of Palermo, Palermo, Italy
| | - Bartolo Tamburini
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR) Azienda Ospedaliera Universitaria Policlinico (A.O.U.P.) Paolo Giaccone, University of Palermo, Palermo, Italy
- Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.), University of Palermo, Palermo, Italy
| | - Giusto Davide Badami
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR) Azienda Ospedaliera Universitaria Policlinico (A.O.U.P.) Paolo Giaccone, University of Palermo, Palermo, Italy
- Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.), University of Palermo, Palermo, Italy
| | - Leila Mohammadnezhad
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR) Azienda Ospedaliera Universitaria Policlinico (A.O.U.P.) Paolo Giaccone, University of Palermo, Palermo, Italy
- Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.), University of Palermo, Palermo, Italy
| | - Francesco Dieli
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR) Azienda Ospedaliera Universitaria Policlinico (A.O.U.P.) Paolo Giaccone, University of Palermo, Palermo, Italy
- Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.), University of Palermo, Palermo, Italy
| | - Nadia Caccamo
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR) Azienda Ospedaliera Universitaria Policlinico (A.O.U.P.) Paolo Giaccone, University of Palermo, Palermo, Italy
- Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.), University of Palermo, Palermo, Italy
- *Correspondence: Nadia Caccamo,
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8
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Li Y, Wu D, Yang X, Zhou S. Immunotherapeutic Potential of T Memory Stem Cells. Front Oncol 2021; 11:723888. [PMID: 34604060 PMCID: PMC8485052 DOI: 10.3389/fonc.2021.723888] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 08/23/2021] [Indexed: 11/13/2022] Open
Abstract
Memory T cells include T memory stem cells (TSCM) and central memory T cells (TCM). Compared with effector memory T cells (TEM) and effector T cells (TEFF), they have better durability and anti-tumor immunity. Recent studies have shown that although TSCM has excellent self-renewal ability and versatility, if it is often exposed to antigens and inflammatory signals, TSCM will behave as a variety of inhibitory receptors such as PD-1, TIM-3 and LAG-3 expression, and metabolic changes from oxidative phosphorylation to glycolysis. These changes can lead to the exhaustion of T cells. Cumulative evidence in animal experiments shows that it is the least differentiated cell in the memory T lymphocyte system and is a central participant in many physiological and pathological processes in humans. It has a good clinical application prospect, so it is more and more important to study the factors affecting the formation of TSCM. This article summarizes and prospects the phenotypic and functional characteristics of TSCM, the regulation mechanism of formation, and its application in treatment of clinical diseases.
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Affiliation(s)
- Yujie Li
- Department of Biochemistry and Molecular Biology, School of Pre-Clinical Science, Guangxi Medical University, Nanning, China
| | - Dengqiang Wu
- National Center for International Research of Bio-targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, China
| | - Xuejia Yang
- National Center for International Research of Bio-targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, China
| | - Sufang Zhou
- Department of Biochemistry and Molecular Biology, School of Pre-Clinical Science, Guangxi Medical University, Nanning, China.,National Center for International Research of Bio-targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, China
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9
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Wang S, Wang L, Liu Y, Zhu Y, Liu Y. Characteristics of T-cell receptor repertoire of stem cell-like memory CD4+ T cells. PeerJ 2021; 9:e11987. [PMID: 34527440 PMCID: PMC8401816 DOI: 10.7717/peerj.11987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/26/2021] [Indexed: 11/20/2022] Open
Abstract
Stem cell-like memory T cells (Tscm) combine phenotypes of naïve and memory. However, it remains unclear how T cell receptor (TCR) characteristics contribute to heterogeneity in Tscm and other memory T cells. We compared the TCR-beta (TRB) repertoire characteristics of CD4+ Tscm with those of naïve and other CD4+ memory (Tm) in 16 human subjects. Compared with Tm, Tscm had an increased diversity across all stretches of TRB repertoire structure, a skewed gene usage, and a shorter length distribution of CDR3 region. These distinctions between Tscm and Tm were enlarged in top1000 abundant clonotypes. Furthermore, top1000 clonotypes in Tscm were more public than those in Tm and grouped in more clusters, implying more epitope types recognized by top1000 clonotypes in Tscm. Importantly, self-reactive clonotypes were public and enriched in Tscm rather than Tm, of type one diabetes patients. Therefore, this study highlights the unique features of Tscm different from those of other memory subsets and provides clues to understand the physiological and pathological functions of Tscm.
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Affiliation(s)
- Shiyu Wang
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.,BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Longlong Wang
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.,BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Yang Liu
- BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Yonggang Zhu
- School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen, Shenzhen, China
| | - Ya Liu
- BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China.,Shenzhen Key Laboratory of Single-Cell Omics, BGI-Shenzhen, Shenzhen, China
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10
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Wang Y, Qiu F, Xu Y, Hou X, Zhang Z, Huang L, Wang H, Xing H, Wu S. Stem cell-like memory T cells: The generation and application. J Leukoc Biol 2021; 110:1209-1223. [PMID: 34402104 DOI: 10.1002/jlb.5mr0321-145r] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/30/2021] [Accepted: 06/15/2021] [Indexed: 12/12/2022] Open
Abstract
Stem cell-like memory T cells (Tscm), are a newly defined memory T cell subset with characteristics of long life span, consistent self-renewing, rapid differentiation into effector T cells, and apoptosis resistance. These features indicate that Tscm have great therapeutic or preventive purposes, including being applied in chimeric Ag receptor-engineered T cells, TCR gene-modified T cells, and vaccines. However, the little knowledge about Tscm development restrains their applications. Strength and duration of TCR signaling, cytokines and metabolism in the T cells during activation all influence the Tscm development via regulating transcriptional factors and cell signaling pathways. Here, we summarize the molecular and cellular pathways involving Tscm differentiation, and its clinical application for cancer immunotherapy and prevention.
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Affiliation(s)
- Yutong Wang
- Department of Laboratory Medicine, Nanhai Hospital, Southern Medical University, Foshan, Guangdong, China.,Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
| | - Feng Qiu
- Department of Laboratory Medicine, Nanhai Hospital, Southern Medical University, Foshan, Guangdong, China
| | - Yifan Xu
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiaorui Hou
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhili Zhang
- Clinical Laboratory Department, Guangdong Women and Children Hospital, Guangzhou, Guangdong, China
| | - Lei Huang
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Framlington Place, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Huijun Wang
- Department of Laboratory Medicine, Nanhai Hospital, Southern Medical University, Foshan, Guangdong, China
| | - Hui Xing
- Department of Obstetrics and Gynecology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei, China
| | - Sha Wu
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
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11
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Lee YJ, Park EH, Park JW, Jung KC, Lee EB. Proinflammatory Features of Stem Cell-like Memory T Cells from Human Patients with Rheumatoid Arthritis. THE JOURNAL OF IMMUNOLOGY 2021; 207:381-388. [PMID: 34162725 DOI: 10.4049/jimmunol.2000814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 05/06/2021] [Indexed: 01/01/2023]
Abstract
Stem cell-like memory T (Tscm) cells are a subset of memory T cells that have characteristics of stem cells. The characteristics of Tscm cells in patients with rheumatoid arthritis (RA) are not well known. The percentage of CD4+ and CD8+ Tscm cells in PBMCs and synovial fluid mononuclear cells was measured. After confirming the stem cell nature of Tscm cells, we examined their pathogenicity in RA patients and healthy controls (HCs) by assessing T cell activation markers and cytokine secretion after stimulation with anti-CD3/CD28 beads and/or IL-6. Finally, RNA transcriptome patterns in Tscm cells from RA patients were compared with those in HCs. In this study, the percentage of CD4+ and CD8+ Tscm cells in total T cells was significantly higher in RA patients than in HCs. Tscm cells self-proliferated and differentiated into memory and effector T cell subsets when stimulated. Compared with Tscm cells from HCs, Tscm cells from RA patients were more easily activated by anti-CD3/CD28 beads augmented by IL-6. Transcriptome analyses revealed that Tscm cells from RA patients showed a pattern distinct from those in HCs; RA-specific transcriptome patterns were not completely resolved in RA patients in complete clinical remission. In conclusion, Tscm cells from RA patients show a transcriptionally distinct pattern and are easily activated to produce inflammatory cytokines when stimulated by TCRs in the presence of IL-6. Tscm cells can be a continuous source of pathogenicity in RA.
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Affiliation(s)
- Ye Ji Lee
- Graduate Course of Translational Medicine (Immunology), Seoul National University College of Medicine, Seoul, Korea
| | - Eun Hye Park
- Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Jun Won Park
- Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Kyeong Cheon Jung
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea; and
| | - Eun Bong Lee
- Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea; .,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Korea
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12
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Semple JW, Rebetz J, Maouia A, Kapur R. An update on the pathophysiology of immune thrombocytopenia. Curr Opin Hematol 2021; 27:423-429. [PMID: 32868673 DOI: 10.1097/moh.0000000000000612] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
: Immune thrombocytopenia (ITP) is an autoimmune bleeding disorder mediated by antiplatelet autoantibodies and antigen-specific T cells that either destroy platelets peripherally in the spleen or impair platelet production in the bone marrow. There have been a plethora of publications relating to the pathophysiology of ITP and since January of 2019, at least 50 papers have been published on ITP pathophysiology. PURPOSE OF REVIEW To summarize the literature relating to the pathophysiology of ITP including the working mechanisms of therapies, T-cell and B-cell physiology, protein/RNA/DNA biochemistry, and animal models in an attempt to unify the perceived abnormal immune processes. RECENT FINDINGS The most recent pathophysiologic irregularities associated with ITP relate to abnormal T-cell responses, particularly, defective T regulatory cell activity and how therapeutics can restore these responses. The robust literature on T cells in ITP points to the notion that ITP is a disease initiated by faulty self-tolerance mechanisms very much like that of other organ-specific autoimmune diseases. There is also a large literature on new and existing animal models of ITP and these will be discussed. It appears that understanding how to specifically modulate T cells in patients with ITP will undoubtedly lead to effective antigen-specific therapeutics. CONCLUSIONS ITP is predominately a T cell disorder which leads to a breakdown in self tolerance mechanisms and allows for the generation of anti-platelet autoantibodies and T cells. Novel therapeutics that target T cells may be the most effective way to perhaps cure this disorder.
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Affiliation(s)
- John W Semple
- Division of Hematology and Transfusion Medicine, Lund University.,Clinical Immunology and Transfusion Medicine, Office of Medical Services, Region Skåne, Lund, Sweden
| | - Johan Rebetz
- Division of Hematology and Transfusion Medicine, Lund University
| | - Amal Maouia
- Division of Hematology and Transfusion Medicine, Lund University
| | - Rick Kapur
- Sanquin Research, Department of Experimental Immunohematology, Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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13
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Stem cell-like memory T cells: A perspective from the dark side. Cell Immunol 2021; 361:104273. [PMID: 33422699 DOI: 10.1016/j.cellimm.2020.104273] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 12/10/2020] [Accepted: 12/17/2020] [Indexed: 02/06/2023]
Abstract
Much attention has been paid to a newly discovered subset of memory T (TM) cells-stem cell-like memory T (TSCM) cells for their high self-renewal ability, multi-differentiation potential and long-term effector function in adoptive therapy against tumors. Despite their application in cancer therapy, an excess of TSCM cells also contributes to the persistence of autoimmune diseases for their immune memory and HIV infection as a long-lived HIV reservoir. Signaling pathways Wnt, AMPK/mTOR and NF-κB are key determinants for TM cell generation, maintenance and proinflammatory effect. In this review, we focus on the phenotypic and functional characteristics of TSCM cells and discuss their role in autoimmune diseases and HIV-1 chronic infection. Also, we explore the potential mechanism and signaling pathways involved in immune memory and look into the future therapy strategies of targeting long-lived TM cells to suppress pathogenic immune memory.
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Jimbo K, Konuma T, Watanabe E, Kohara C, Mizukami M, Nagai E, Oiwa-Monna M, Mizusawa M, Isobe M, Kato S, Takahashi S, Tojo A. T memory stem cells after allogeneic haematopoietic cell transplantation: unique long-term kinetics and influence of chronic graft-versus-host disease. Br J Haematol 2019; 186:866-878. [PMID: 31135974 DOI: 10.1111/bjh.15995] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Accepted: 04/11/2019] [Indexed: 12/21/2022]
Abstract
T memory stem cells (TSCMs) are a subset of primitive T cells capable of both self-renewal and differentiation into all subsets of memory and effector T cells. Therefore, TSCMs may play a role in immune reconstitution and graft-versus-host disease (GVHD) in patients receiving allogeneic haematopoietic cell transplantation (HCT). We conducted a cross-sectional study to evaluate the proportions, absolute counts, phenotypes and functions of TSCMs in 152 adult patients without disease recurrence at least 12 months after undergoing HCT. CD4+ TSCMs were negatively correlated with number of months after transplantation in HCT patients that received cord blood transplantation, but not in patients that received bone marrow transplantation or peripheral blood stem cell transplantation. The proportions and absolute counts of CD4+ TSCMs and expression levels of inducible co-stimulator (ICOS) in CD8+ TSCMs were significantly higher in patients with mild and moderate/severe cGVHD compared to patients without cGVHD. These data suggested that, more than 12 months after allogeneic HCT, the kinetics of CD4+ TSCMs were dependent on the type of donor source, and further that CD4+ TSCMs and ICOS levels in CD8+ TSCMs were associated with cGVHD.
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Affiliation(s)
- Koji Jimbo
- Department of Haematology/Oncology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Takaaki Konuma
- Department of Haematology/Oncology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Eri Watanabe
- Department of IMSUT Clinical Flow Cytometry Laboratory, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Chisato Kohara
- Department of Haematology/Oncology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Motoko Mizukami
- Department of Laboratory Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Etsuko Nagai
- Department of Laboratory Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Maki Oiwa-Monna
- Department of Haematology/Oncology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Mai Mizusawa
- Department of Haematology/Oncology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Masamichi Isobe
- Department of Haematology/Oncology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Seiko Kato
- Department of Haematology/Oncology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Satoshi Takahashi
- Department of Haematology/Oncology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Arinobu Tojo
- Department of Haematology/Oncology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
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