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Fu X, Xiao P, Luo X, Guo N. Transcription factor YY1 accelerates hepatic fibrosis development by activating NLRP3 inflammasome-mediated pyroptosis. Histol Histopathol 2024; 39:1079-1087. [PMID: 38264929 DOI: 10.14670/hh-18-703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Hepatic fibrosis is the basis of multiple liver diseases and may eventually develop into hepatocellular carcinoma. Hepatic stellate cell (HSC) activation is a driving factor of hepatic fibrogenesis. In the liver microenvironment, liver cells and others play a crucial role in HSC activation. The liver tissues of CCl4-induced rats show excessive fibrosis, inflammation, and cell apoptosis. Yin Yang 1 (YY1) was highly expressed in hepatic fibrosis rats and TGF-β1-treated liver cells. In animal experiments, YY1 knockdown effectively attenuated CCl4-induced liver injury and pyroptosis-related IL-1β and IL-18 expression. In cellular experiments, NLRP3 inflammasome-mediated pyroptosis was activated by TGF-β1 treatment, while YY1 knockdown significantly inhibited the activation of the NLRP3 inflammasome, pyroptosis, and the secretion of IL-1β and IL-18. In addition, our data showed that TGF-β1-treated liver cell conditional medium markedly induced HSC activation, which was rescued by YY1 knockdown in liver cells. YY1 overexpression in liver cells contributed to the activation of TGF-β1-treated liver cell conditional medium in HSCs, however, this effect of YY1 was attenuated by NLRP3 inhibition. Overall, YY1 overexpression in liver cells contributed to HSC activation by facilitating IL-1β and IL-18 production via activating NLRP3 inflammasome-mediated pyroptosis, thus aggravating hepatic fibrogenesis. Our data indicate that YY1 may be a novel target for the treatment of hepatic fibrosis and associated liver diseases.
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Affiliation(s)
- Xiao Fu
- General Medicine Department, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, PR China
| | - Ping Xiao
- General Medicine Department, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, PR China
| | - Xin Luo
- General Medicine Department, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, PR China
| | - Ninghong Guo
- Clinical Trial Center, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, PR China.
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2
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Banerjee S, Sanyal S, Hodawadekar S, Naiyer S, Bano N, Banerjee A, Rhoades J, Dong D, Allman D, Atchison ML. Unusual lineage plasticity revealed by YY1 knockout in pro-B cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.22.586298. [PMID: 38586061 PMCID: PMC10996465 DOI: 10.1101/2024.03.22.586298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
During B cell development, cells progress through multiple developmental stages with the pro-B cell stage defining commitment to the B cell lineage. YY1 is a ubiquitous transcription factor that is capable of both activation and repression functions. We find here that knockout of YY1 at the pro-B cell stage eliminates B lineage commitment. YY1 knockout pro-B cells can generate T lineage cells in vitro using the OP9- DL4 feeder system, as well as in vivo after injection into sub-lethally irradiated Rag1 -/- mice. These T lineage-like cells lose their B lineage transcript profile and gain a T cell lineage profile. Single cell-RNA-seq experiments showed that as YY1 knockout pro-B cells transition into T lineage cells, various cell clusters adopt transcript profiles representing a multiplicity of hematopoietic lineages indicating unusual lineage plasticity. Given the ubiquitous nature of YY1 and its dual activation and repression functions, YY1 likely regulates commitment in multiple cell lineages.
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3
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Zhang C, Chen S, Wang W, Gao Y. YY1 regulates the proliferation and invasion of triple-negative breast cancer via activating PLAUR. Funct Integr Genomics 2023; 23:269. [PMID: 37552345 DOI: 10.1007/s10142-023-01193-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/27/2023] [Accepted: 07/29/2023] [Indexed: 08/09/2023]
Abstract
It is well-established that breast cancer is a highly prevalent malignancy among women, emphasizing the need to investigate mechanisms underlying its pathogenesis and metastasis. In this study, the Gene Expression Omnibus (GEO) database was utilized to conduct differential expression analysis in breast cancer and adjacent tissues. Upregulated genes were selected for prognostic analysis of breast cancer. The expression of urokinase plasminogen activator receptor (uPAR), also known as PLAUR, was assessed using RT-qPCR and western blot. Immunofluorescence staining was employed to determine PLAUR localization. Various cellular processes were analyzed, including proliferation, migration, invasion, apoptosis, and cell cycle. Bioinformatics analysis was used to predict transcription factors of PLAUR, which were subsequently validated in a double luciferase reporter gene experiment. Rescue experiments confirmed the impact of PLAUR on the proliferation, apoptosis, and migration of MDA-MB-231 cells. Furthermore, the effects of PLAUR were evaluated in an orthotopic tumor transplantation and lung metastasis nude mouse model. Our findings substantiated the critical involvement of PLAUR in the progression of triple-negative breast cancer (TNBC) in vitro and among TNBC patients with a poor prognosis. Additionally, we demonstrated Yin Yang-1 (YY1) as a notable transcriptional regulator of PLAUR, whose activation could transcriptionally enhance the proliferation and invasion capabilities of TNBC cells. We also identified the downstream mechanism of PLAUR associated with PLAU, focal adhesion kinase (FAK), and AKT. Overall, these findings offer a novel perspective on PLAUR as a potential therapeutic target for TNBC.
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Affiliation(s)
- Chao Zhang
- The First Clinical College, Jinan University, Guangzhou, 510630, China
- Department of Oncology Surgery, The First Affiliated Hospital of Bengbu Medical College, No. 287, Changhuai Road, Longzihu Distract, Bengbu, 233004, Anhui, China
| | - Shiyuan Chen
- Department of Vascular Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Wei Wang
- Department of Oncology Surgery, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Yong Gao
- The First Clinical College, Jinan University, Guangzhou, 510630, China.
- Department of Vascular Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China.
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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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5
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You M, Liu J, Li J, Ji C, Ni H, Guo W, Zhang J, Jia W, Wang Z, Zhang Y, Yao Y, Yu G, Ji H, Wang X, Han D, Du X, Xu MM, Yu S. Mettl3-m 6A-Creb1 forms an intrinsic regulatory axis in maintaining iNKT cell pool and functional differentiation. Cell Rep 2023; 42:112584. [PMID: 37267102 DOI: 10.1016/j.celrep.2023.112584] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 03/07/2023] [Accepted: 05/15/2023] [Indexed: 06/04/2023] Open
Abstract
N6-methyladenosine (m6A) methyltransferase Mettl3 is involved in conventional T cell immunity; however, its role in innate immune cells remains largely unknown. Here, we show that Mettl3 intrinsically regulates invariant natural killer T (iNKT) cell development and function in an m6A-dependent manner. Conditional ablation of Mettl3 in CD4+CD8+ double-positive (DP) thymocytes impairs iNKT cell proliferation, differentiation, and cytokine secretion, which synergistically causes defects in B16F10 melanoma resistance. Transcriptomic and epi-transcriptomic analyses reveal that Mettl3 deficiency disturbs the expression of iNKT cell-related genes with altered m6A modification. Strikingly, Mettl3 modulates the stability of the Creb1 transcript, which in turn controls the protein and phosphorylation levels of Creb1. Furthermore, conditional targeting of Creb1 in DP thymocytes results in similar phenotypes of iNKT cells lacking Mettl3. Importantly, ectopic expression of Creb1 largely rectifies such developmental defects in Mettl3-deficient iNKT cells. These findings reveal that the Mettl3-m6A-Creb1 axis plays critical roles in regulating iNKT cells at the post-transcriptional layer.
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Affiliation(s)
- Menghao You
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jingjing Liu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jie Li
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, and China National Center for Bioinformation, Chinese Academy of Sciences, Beijing 100101, China; Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Ce Ji
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Haochen Ni
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, and China National Center for Bioinformation, Chinese Academy of Sciences, Beijing 100101, China
| | - Wenhui Guo
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jiarui Zhang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Weiwei Jia
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Zhao Wang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yajiao Zhang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yingpeng Yao
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Guotao Yu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Huanyu Ji
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xiaohu Wang
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Dali Han
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, and China National Center for Bioinformation, Chinese Academy of Sciences, Beijing 100101, China
| | - Xuguang Du
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China.
| | - Meng Michelle Xu
- Department of Basic Medical Sciences, School of Medicine, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, THU-PKU Center for Life Sciences, Tsinghua University, Beijing 100084, China.
| | - Shuyang Yu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing 100193, China.
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6
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Li M, Wei J, Xue C, Zhou X, Chen S, Zheng L, Duan Y, Deng H, Xiong W, Tang F, Li G, Zhou M. Dissecting the roles and clinical potential of YY1 in the tumor microenvironment. Front Oncol 2023; 13:1122110. [PMID: 37081988 PMCID: PMC10110844 DOI: 10.3389/fonc.2023.1122110] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/13/2023] [Indexed: 04/07/2023] Open
Abstract
Yin-Yang 1 (YY1) is a member of the GLI-Kruppel family of zinc finger proteins and plays a vital dual biological role in cancer as an oncogene or a tumor suppressor during tumorigenesis and tumor progression. The tumor microenvironment (TME) is identified as the “soil” of tumor that has a critical role in both tumor growth and metastasis. Many studies have found that YY1 is closely related to the remodeling and regulation of the TME. Herein, we reviewed the expression pattern of YY1 in tumors and summarized the function and mechanism of YY1 in regulating tumor angiogenesis, immune and metabolism. In addition, we discussed the potential value of YY1 in tumor diagnosis and treatment and provided a novel molecular strategy for the clinical diagnosis and treatment of tumors.
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Affiliation(s)
- MengNa Li
- Key Laboratory of Carcinogenesis, National Health Commission, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Cancer Research Institute, Central South University, Changsha, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
- Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - JianXia Wei
- Key Laboratory of Carcinogenesis, National Health Commission, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Cancer Research Institute, Central South University, Changsha, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - ChangNing Xue
- Key Laboratory of Carcinogenesis, National Health Commission, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Cancer Research Institute, Central South University, Changsha, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - XiangTing Zhou
- The First Clinical College of Changsha Medical University, Changsha, China
| | - ShiPeng Chen
- Key Laboratory of Carcinogenesis, National Health Commission, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Cancer Research Institute, Central South University, Changsha, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - LeMei Zheng
- Key Laboratory of Carcinogenesis, National Health Commission, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Cancer Research Institute, Central South University, Changsha, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - YuMei Duan
- Key Laboratory of Carcinogenesis, National Health Commission, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Cancer Research Institute, Central South University, Changsha, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - HongYu Deng
- Key Laboratory of Carcinogenesis, National Health Commission, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Cancer Research Institute, Central South University, Changsha, China
- Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Wei Xiong
- Key Laboratory of Carcinogenesis, National Health Commission, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Cancer Research Institute, Central South University, Changsha, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - FaQing Tang
- Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - GuiYuan Li
- Key Laboratory of Carcinogenesis, National Health Commission, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Cancer Research Institute, Central South University, Changsha, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
| | - Ming Zhou
- Key Laboratory of Carcinogenesis, National Health Commission, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Cancer Research Institute, Central South University, Changsha, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, China
- Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- *Correspondence: Ming Zhou,
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7
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Morgan RC, Kee BL. Genomic and Transcriptional Mechanisms Governing Innate-like T Lymphocyte Development. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 209:208-216. [PMID: 35821098 DOI: 10.4049/jimmunol.2200141] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/18/2022] [Indexed: 12/16/2022]
Abstract
Innate-like lymphocytes are a subset of lymphoid cells that function as a first line of defense against microbial infection. These cells are activated by proinflammatory cytokines or broadly expressed receptors and are able to rapidly perform their effector functions owing to a uniquely primed chromatin state that is acquired as a part of their developmental program. These cells function in many organs to protect against disease, but they release cytokines and cytotoxic mediators that can also lead to severe tissue pathologies. Therefore, harnessing the capabilities of these cells for therapeutic interventions will require a deep understanding of how these cells develop and regulate their effector functions. In this review we discuss recent advances in the identification of the transcription factors and the genomic regions that guide the development and function of invariant NKT cells and we highlight related mechanisms in other innate-like lymphocytes.
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Affiliation(s)
- Roxroy C Morgan
- Committee on Genetics, Genomics and Systems Biology, University of Chicago, Chicago, IL; and
| | - Barbara L Kee
- Cancer Biology and Immunology, Department of Pathology, University of Chicago, Chicago, IL
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8
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Papadogkonas G, Papamatheakis DA, Spilianakis C. 3D Genome Organization as an Epigenetic Determinant of Transcription Regulation in T Cells. Front Immunol 2022; 13:921375. [PMID: 35812421 PMCID: PMC9257000 DOI: 10.3389/fimmu.2022.921375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 05/26/2022] [Indexed: 12/12/2022] Open
Abstract
In the heart of innate and adaptive immunity lies the proper spatiotemporal development of several immune cell lineages. Multiple studies have highlighted the necessity of epigenetic and transcriptional regulation in cell lineage specification. This mode of regulation is mediated by transcription factors and chromatin remodelers, controlling developmentally essential gene sets. The core of transcription and epigenetic regulation is formulated by different epigenetic modifications determining gene expression. Apart from “classic” epigenetic modifications, 3D chromatin architecture is also purported to exert fundamental roles in gene regulation. Chromatin conformation both facilitates cell-specific factor binding at specified regions and is in turn modified as such, acting synergistically. The interplay between global and tissue-specific protein factors dictates the epigenetic landscape of T and innate lymphoid cell (ILC) lineages. The expression of global genome organizers such as CTCF, YY1, and the cohesin complexes, closely cooperate with tissue-specific factors to exert cell type-specific gene regulation. Special AT-rich binding protein 1 (SATB1) is an important tissue-specific genome organizer and regulator controlling both long- and short-range chromatin interactions. Recent indications point to SATB1’s cooperation with the aforementioned factors, linking global to tissue-specific gene regulation. Changes in 3D genome organization are of vital importance for proper cell development and function, while disruption of this mechanism can lead to severe immuno-developmental defects. Newly emerging data have inextricably linked chromatin architecture deregulation to tissue-specific pathophysiological phenotypes. The combination of these findings may shed light on the mechanisms behind pathological conditions.
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Affiliation(s)
- George Papadogkonas
- Department of Biology, University of Crete, Heraklion, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology Hellas, Heraklion, Greece
| | - Dionysios-Alexandros Papamatheakis
- Department of Biology, University of Crete, Heraklion, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology Hellas, Heraklion, Greece
| | - Charalampos Spilianakis
- Department of Biology, University of Crete, Heraklion, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology Hellas, Heraklion, Greece
- *Correspondence: Charalampos Spilianakis,
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9
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Bao X, Qin Y, Lu L, Zheng M. Transcriptional Regulation of Early T-Lymphocyte Development in Thymus. Front Immunol 2022; 13:884569. [PMID: 35432347 PMCID: PMC9008359 DOI: 10.3389/fimmu.2022.884569] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 03/09/2022] [Indexed: 02/06/2023] Open
Abstract
T-lymphocytes play crucial roles for maintaining immune homeostasis by fighting against various pathogenic microorganisms and establishing self-antigen tolerance. They will go through several stages and checkpoints in the thymus from progenitors to mature T cells, from CD4-CD8- double negative (DN) cells to CD4+CD8+ double positive (DP) cells, finally become CD4+ or CD8+ single positive (SP) cells. The mature SP cells then emigrate out of the thymus and further differentiate into distinct subsets under different environment signals to perform specific functions. Each step is regulated by various transcriptional regulators downstream of T cell receptors (TCRs) that have been extensively studied both in vivo and vitro via multiple mouse models and advanced techniques, such as single cell RNA sequencing (scRNA-seq) and Chromatin Immunoprecipitation sequencing (ChIP-seq). This review will summarize the transcriptional regulators participating in the early stage of T cell development reported in the past decade, trying to figure out cascade networks in each process and provide possible research directions in the future.
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Affiliation(s)
- Xueyang Bao
- Department of Pathogenic Biology and Immunology, Jiangsu Provincial Key Laboratory of Critical Care Medicine, School of Medicine, Southeast University, Nanjing, China
| | - Yingyu Qin
- Department of Pathogenic Biology and Immunology, Jiangsu Provincial Key Laboratory of Critical Care Medicine, School of Medicine, Southeast University, Nanjing, China
| | - Linrong Lu
- Shanghai Immune Therapy Institute, Renji Hospital, Jiao Tong University School of Medicine, Shanghai, China.,Institute of Immunology, School of Medicine, Zhejiang University, Hangzhou, China
| | - Mingzhu Zheng
- Department of Pathogenic Biology and Immunology, Jiangsu Provincial Key Laboratory of Critical Care Medicine, School of Medicine, Southeast University, Nanjing, China
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10
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Klibi J, Amable L, Benlagha K. A focus on natural killer T-cell subset characterization and developmental stages. Immunol Cell Biol 2020; 98:358-368. [PMID: 32187747 DOI: 10.1111/imcb.12322] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/03/2020] [Accepted: 02/20/2020] [Indexed: 12/12/2022]
Abstract
Almost 20 years ago, CD1d tetramers were developed to track invariant natural killer T (NKT) cells based on their specificity, and to define developmental steps during which differentiation markers and functional features are progressively acquired from early NKT cell precursor to fully mature NKT cell subsets. Based on these findings, a linear developmental model was proposed and subsequently used by all studies investigating the specific role of factors that control NKT cell development. More recently, based on intracellular staining patterns of lineage-specific transcription factors such as T-bet, GATA-3, promyelocytic leukemia zinc finger and RORγt, a lineage differentiation model was proposed for NKT cell development. Currently, studies on NKT cells development present lineage differentiation model data in addition to the linear maturation model. In the perspective presented here, we discuss current knowledge relating to NKT cell developmental models and particularly focus on the approaches and strategies, some of which appear nebulous, used to define NKT cell developmental stages and subsets.
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Affiliation(s)
- Jihene Klibi
- INSERM, UMR-1160, Institut de Recherche St-Louis (IRSL), Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Ludivine Amable
- INSERM, UMR-1160, Institut de Recherche St-Louis (IRSL), Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Kamel Benlagha
- INSERM, UMR-1160, Institut de Recherche St-Louis (IRSL), Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
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11
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Darcy PW, Jin K, Osorio L, Denzin LK, Sant'Angelo DB. Coexpression of YY1 Is Required to Elaborate the Effector Functions Controlled by PLZF in NKT Cells. THE JOURNAL OF IMMUNOLOGY 2019; 203:627-638. [PMID: 31227579 DOI: 10.4049/jimmunol.1900055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 06/04/2019] [Indexed: 01/15/2023]
Abstract
The promyelocytic leukemia zinc-finger transcription factor (PLZF) is essential for nearly all of the unique, innate-like functions and characteristics of NKT cells. It is not known, however, if the activity of PLZF is regulated by other factors. In this article, we show that the function of PLZF is completely dependent on the transcription factor Yin Yang 1 (YY1). Mouse NKT cells expressing wild-type levels of PLZF, but deficient for YY1, had developmental defects, lost their characteristic "preformed" mRNA for cytokines, and failed to produce cytokine protein upon primary activation. Immunoprecipitation experiments showed that YY1 and PLZF were coassociated. Taken together, these biochemical and genetic data show that the broadly expressed transcription factor, YY1, is required for the cell-specific "master regulator" functions of PLZF.
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Affiliation(s)
- Patrick W Darcy
- Child Health Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901
| | - Kangxin Jin
- Child Health Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901
| | - Louis Osorio
- Child Health Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901
| | - Lisa K Denzin
- Child Health Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901.,Graduate School of Biomedical Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901; and.,Department of Pediatrics, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901
| | - Derek B Sant'Angelo
- Child Health Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901; .,Graduate School of Biomedical Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901; and.,Department of Pediatrics, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901
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Shissler SC, Webb TJ. The ins and outs of type I iNKT cell development. Mol Immunol 2018; 105:116-130. [PMID: 30502719 DOI: 10.1016/j.molimm.2018.09.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 09/14/2018] [Accepted: 09/29/2018] [Indexed: 01/07/2023]
Abstract
Natural killer T (NKT) cells are innate-like lymphocytes that bridge the gap between the innate and adaptive immune responses. Like innate immune cells, they have a mature, effector phenotype that allows them to rapidly respond to threats, compared to adaptive cells. NKT cells express T cell receptors (TCRs) like conventional T cells, but instead of responding to peptide antigen presented by MHC class I or II, NKT cell TCRs recognize glycolipid antigen in the context of CD1d. NKT cells are subdivided into classes based on their TCR and antigen reactivity. This review will focus on type I iNKT cells that express a semi invariant Vα14Jα18 TCR and respond to the canonical glycolipid antigen, α-galactosylceramide. The innate-like effector functions of these cells combined with their T cell identity make their developmental path quite unique. In addition to the extrinsic factors that affect iNKT cell development such as lipid:CD1d complexes, co-stimulation, and cytokines, this review will provide a comprehensive delineation of the cell intrinsic factors that impact iNKT cell development, differentiation, and effector functions - including TCR rearrangement, survival and metabolism signaling, transcription factor expression, and gene regulation.
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Affiliation(s)
- Susannah C Shissler
- Department of Microbiology and Immunology, University of Maryland School of Medicine, 685 W. Baltimore St. HSF-1 Room 380, Baltimore, MD 21201, USA.
| | - Tonya J Webb
- Department of Microbiology and Immunology, University of Maryland School of Medicine, 685 W. Baltimore St. HSF-1 Room 380, Baltimore, MD 21201, USA
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