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Zhao W, Wang Y, Zhang X, Hao J, Zhang K, Huang X, Chang Y, Wu H, Jin R, Ge Q. Impaired thymic iNKT cell differentiation at early precursor stage in murine haploidentical bone marrow transplantation with GvHD. Front Immunol 2023; 14:1203614. [PMID: 37600815 PMCID: PMC10438461 DOI: 10.3389/fimmu.2023.1203614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/07/2023] [Indexed: 08/22/2023] Open
Abstract
Introduction Early recovery of donor-derived invariant natural killer T (iNKT) cells are associated with reduced risk of graft-versus-host disease (GvHD) and overall survival. Patients with severe GvHD, however, had much slower iNKT cell reconstitution relative to conventional T cells. Methods To characterize the delay of iNKT cell reconstitution and explore its possible causes, we used a haploidentical bone marrow transplantation (haplo-BMT) mouse model with GvHD. We found the delayed recovery of thymic and peripheral iNKT cell numbers with markedly decreased thymic NKT1 subset in GvHD mice. The defective generation of thymic iNKT precursors with egress capability contributed to the reduced peripheral iNKT cells in GvHD mice. We further identified intermediate NK1.1- NKT1 precursor subpopulations under steady-state conditions and found that the differentiation of these subpopulations was impaired in the thymi of GvHD mice. Detailed characterization of iNKT precursors and thymic microenvironment showed a close association of elevated TCR/co-stimulatory signaling provided by double positive thymocytes and macrophages with defective down-regulation of proliferation, metabolism, and NKT2 signature in iNKT precursor cells. Correspondingly, NKT2 but not NKT1 differentiation was favored in GvHD mice. Discussion These data underline the important roles of TCR and co-stimulatory signaling in the differentiation of thymic iNKT subsets under transplantation conditions.
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Affiliation(s)
- Weijia Zhao
- Department of Immunology, School of Basic Medical Sciences, Peking University, National Health Commission (NHC) Key Laboratory of Medical Immunology (Peking University), Beijing, China
| | - Yujia Wang
- Department of Immunology, School of Basic Medical Sciences, Peking University, National Health Commission (NHC) Key Laboratory of Medical Immunology (Peking University), Beijing, China
| | - Xinwei Zhang
- Department of Immunology, School of Basic Medical Sciences, Peking University, National Health Commission (NHC) Key Laboratory of Medical Immunology (Peking University), Beijing, China
| | - Jie Hao
- Department of Immunology, School of Basic Medical Sciences, Peking University, National Health Commission (NHC) Key Laboratory of Medical Immunology (Peking University), Beijing, China
| | - Kunshan Zhang
- Central Lab, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xiaojun Huang
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People’s Hospital & Institute of Hematology, Beijing, China
| | - Yingjun Chang
- Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking University People’s Hospital & Institute of Hematology, Beijing, China
| | - Hounan Wu
- Peking University Medical and Health Analytical Center, Peking University, Beijing, China
| | - Rong Jin
- Department of Immunology, School of Basic Medical Sciences, Peking University, National Health Commission (NHC) Key Laboratory of Medical Immunology (Peking University), Beijing, China
| | - Qing Ge
- Department of Immunology, School of Basic Medical Sciences, Peking University, National Health Commission (NHC) Key Laboratory of Medical Immunology (Peking University), Beijing, China
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, China
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Collins SM, Alexander KA, Lundh S, Dimitri AJ, Zhang Z, Good CR, Fraietta JA, Berger SL. TOX2 coordinates with TET2 to positively regulate central memory differentiation in human CAR T cells. SCIENCE ADVANCES 2023; 9:eadh2605. [PMID: 37467321 PMCID: PMC10355826 DOI: 10.1126/sciadv.adh2605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 06/14/2023] [Indexed: 07/21/2023]
Abstract
Chimeric antigen receptor (CAR) T cell therapy is used in treating human hematological malignancies, but its efficacy is limited by T cell exhaustion (TEX). TEX arises at the expense of central memory T cells (TCM), which exhibit robust antitumor efficacy. Reduction of the TET2 gene led to increased TCM differentiation in a patient with leukemia who experienced a complete remission. We show that loss of TET2 led to increased chromatin accessibility at exhaustion regulators TOX and TOX2, plus increased expression of TOX2. Knockdown of TOX increased the percentage of TCM. However, unexpectedly, knockdown of TOX2 decreased TCM percentage and reduced proliferation. Consistently, a TCM gene signature was reduced in the TOX2 knockdown, and TOX2 bound to promoters of numerous TCM genes. Our results thus suggest a role for human TOX2, in contrast to exhaustion regulator TOX, as a potentiator of central memory differentiation of CAR T cells, with plausible utility in CAR T cell cancer therapy via modulated TOX2 expression.
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Affiliation(s)
- Sierra M. Collins
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Katherine A. Alexander
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Stefan Lundh
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, PA 19104, USA
| | - Alexander J. Dimitri
- Center for Cellular Immunotherapies, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Zhen Zhang
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Charly R. Good
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Joseph A. Fraietta
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, PA 19104, USA
- Center for Cellular Immunotherapies, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia PA 19104, USA
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Shelley L. Berger
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Epigenetics Institute, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Genetics, University of Pennsylvania, Philadelphia PA 19104, USA
- Department of Biology, University of Pennsylvania, Philadelphia PA 19104, USA
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Ha F, Li N, Long C, Zheng P, Hu G, Jia G, Wang T. The Effect of Global DNA Methylation on PDCD5 Expression in the PBMC of Occupational Chromate Exposed Workers. J Occup Environ Med 2021; 63:600-608. [PMID: 34184653 DOI: 10.1097/jom.0000000000002192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To evaluate the alteration of protein of programmed cell death 5 (PDCD5) in peripheral blood mononuclear cells (PBMC) and DNA methylation caused by hexavalent chromium exposure. METHODS There were 112 workers and 56 controls in this study. The chromium in RBC and urine, PBMC with PDCD5+, DNA methylation, urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) and score of DNA damage were measured. RESULTS In chromate exposed workers, the percent of PBMC with PDCD5+, urine 8-OHdG, and score of DNA damage were significantly higher, whereas global DNA methylation was significantly lower. The binary logistic regression and generalized linear mixed model analysis showed that the percent of PBMC with PDCD5+ was significantly associated with global DNA hypomethylation. CONCLUSIONS The aberrant DNA hypomethylation plays an important role in PBMC apoptosis of occupational hexavalent chromium exposure.
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Affiliation(s)
- Feizai Ha
- Department of Laboratory Medicine, Peking University Third Hospital, Beijing, China (Ms Ha, Ms Li, and Dr Wang); Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China (Dr Long, Dr Zheng, Dr Hu, and Dr Jia)
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Wang K, Zhao W, Jin R, Ge Q. Thymic iNKT cell differentiation at single-cell resolution. Cell Mol Immunol 2021; 18:2065-2066. [PMID: 34035498 DOI: 10.1038/s41423-021-00697-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 05/04/2021] [Indexed: 11/09/2022] Open
Affiliation(s)
- Ke Wang
- Department of Immunology, School of Basic Medical Sciences, Peking University, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China
| | - Weijia Zhao
- Department of Immunology, School of Basic Medical Sciences, Peking University, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China
| | - Rong Jin
- Department of Immunology, School of Basic Medical Sciences, Peking University, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China
| | - Qing Ge
- Department of Immunology, School of Basic Medical Sciences, Peking University, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China. .,Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, China.
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Wanlin W, Chun M, Juan X. [rhPDCD5 suppresses pro-inflammatory cytokine secretion and proliferation and induces apoptosis of activated lymphocytes from rats with collagen-induced arthritis]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2019; 39:627-632. [PMID: 31270039 DOI: 10.12122/j.issn.1673-4254.2019.06.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the effect of recombinant human PDCD5 (rhPDCD5) treatment in a rat model of bovine II collagen (CII)-induced arthritis (CIA) on inflammatory cytokine secretion, proliferation and apoptosis of activated lymphocytes and explore the mechanisms of rhPDCD5-induced immunosuppression on activated lymphocytes. METHODS Female Wistar rats were randomly divided into normal control group, CIA+ ovalbumin (OVA) group, CIA+ rhTNFR: Fc group, and CIA+rhPDCD5 group. The rats in the latter 3 groups received intraperitoneal injections of OVA (14 mg/kg), rhTNFR: Fc (3.5 mg/kg) or rhPDCD5 (14 mg/kg) from day 2 to day 26 following CII injection. On day 28, the spleens of the rats were harvested for preparing single cell suspensions of splenocytes, which were activated by CII (20μg/mL) or anti-CD3 (1μg/mL)+ anti-CD28 (2μg/mL) for 48 h and 72 h. The production of interferon-γ(IFN-γ) and interleukin-17A (IL-17A) by the activated lymphocytes was determined by ELISA of the culture supernatants. The proliferation and apoptosis of the activated lymphocytes were assessed using [3H]-thymidine incorporation assay and flow cytometry, respectively. RESULTS Compared with those in CIA + OVA group, IFN-γand IL-17A secretions by the activated lymphocytes from rhPDCD5-treated CIA rats significantly decreased. RhPDCD5 treatment of the CIA rats obviously suppressed the proliferation and promoted apoptosis of the lymphocytes activated by CII or by anti-CD3 + anti-CD28. CONCLUSIONS rhPDCD5 reduces pro-inflammatory cytokine secretion, inhibits the proliferation and promotes activation-induced cell death of activated CD4 + lymphocytes to produce immunosuppression in rat models of CIA.
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Affiliation(s)
- Wang Wanlin
- Zaoyang First People's Hospital, Hubei University of Arts and Science, Xiangyang 441200, China.,Laboratory of Molecular Medicine, Hubei University of Arts and Science, Xiangyang 441053, China
| | - Mao Chun
- Laboratory of Molecular Medicine, Hubei University of Arts and Science, Xiangyang 441053, China
| | - Xiao Juan
- Laboratory of Molecular Medicine, Hubei University of Arts and Science, Xiangyang 441053, China
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