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Chakraborty A, Kamat SS. Lysophosphatidylserine: A Signaling Lipid with Implications in Human Diseases. Chem Rev 2024; 124:5470-5504. [PMID: 38607675 DOI: 10.1021/acs.chemrev.3c00701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2024]
Abstract
Lysophosphatidylserine (lyso-PS) has emerged as yet another important signaling lysophospholipid in mammals, and deregulation in its metabolism has been directly linked to an array of human autoimmune and neurological disorders. It has an indispensable role in several biological processes in humans, and therefore, cellular concentrations of lyso-PS are tightly regulated to ensure optimal signaling and functioning in physiological settings. Given its biological importance, the past two decades have seen an explosion in the available literature toward our understanding of diverse aspects of lyso-PS metabolism and signaling and its association with human diseases. In this Review, we aim to comprehensively summarize different aspects of lyso-PS, such as its structure, biodistribution, chemical synthesis, and SAR studies with some synthetic analogs. From a biochemical perspective, we provide an exhaustive coverage of the diverse biological activities modulated by lyso-PSs, such as its metabolism and the receptors that respond to them in humans. We also briefly discuss the human diseases associated with aberrant lyso-PS metabolism and signaling and posit some future directions that may advance our understanding of lyso-PS-mediated mammalian physiology.
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Affiliation(s)
- Arnab Chakraborty
- Department of Biology, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune 411008, Maharashtra, India
| | - Siddhesh S Kamat
- Department of Biology, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune 411008, Maharashtra, India
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Fu C, Li Q, Zou J, Xing C, Luo M, Yin B, Chu J, Yu J, Liu X, Wang HY, Wang RF. JMJD3 regulates CD4 T cell trafficking by targeting actin cytoskeleton regulatory gene Pdlim4. J Clin Invest 2019; 129:4745-4757. [PMID: 31393857 PMCID: PMC6819100 DOI: 10.1172/jci128293] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 08/01/2019] [Indexed: 01/23/2023] Open
Abstract
Histone H3K27 demethylase, JMJD3 plays a critical role in gene expression and T-cell differentiation. However, the role and mechanisms of JMJD3 in T cell trafficking remain poorly understood. Here we show that JMJD3 deficiency in CD4+ T cells resulted in an accumulation of T cells in the thymus, and reduction of T cell number in the secondary lymphoid organs. We identified PDLIM4 as a significantly down-regulated target gene in JMJD3-deficient CD4+ T cells by gene profiling and ChIP-seq analyses. We further showed that PDLIM4 functioned as an adaptor protein to interact with S1P1 and filamentous actin (F-actin), thus serving as a key regulator of T cell trafficking. Mechanistically, JMJD3 bound to the promoter and gene body regions of Pdlim4 gene and regulated its expression by interacting with zinc finger transcription factor KLF2. Our findings have identified Pdlim4 as a JMJD3 target gene that affects T-cell trafficking by cooperating with S1P1, and provided insights into the molecular mechanisms by which JMJD3 regulates genes involved in T cell trafficking.
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Affiliation(s)
- Chuntang Fu
- Institute of Bioscience and Technology, Texas A&M University Health Science Center, Houston, Texas, USA
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, Texas, USA
| | - Qingtian Li
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, Texas, USA
| | - Jia Zou
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, Texas, USA
| | - Changsheng Xing
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, Texas, USA
| | - Mei Luo
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, Texas, USA
- Xiangya Hospital, Central South University, Changsha, China
| | - Bingnan Yin
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, Texas, USA
| | - Junjun Chu
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, Texas, USA
| | - Jiaming Yu
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, Texas, USA
| | - Xin Liu
- Institute of Bioscience and Technology, Texas A&M University Health Science Center, Houston, Texas, USA
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, Texas, USA
| | - Helen Y. Wang
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, Texas, USA
| | - Rong-Fu Wang
- Institute of Bioscience and Technology, Texas A&M University Health Science Center, Houston, Texas, USA
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, Texas, USA
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Lee JY, Skon CN, Lee YJ, Oh S, Taylor JJ, Malhotra D, Jenkins MK, Rosenfeld MG, Hogquist KA, Jameson SC. The transcription factor KLF2 restrains CD4⁺ T follicular helper cell differentiation. Immunity 2015; 42:252-264. [PMID: 25692701 PMCID: PMC4409658 DOI: 10.1016/j.immuni.2015.01.013] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 12/02/2014] [Accepted: 12/08/2014] [Indexed: 12/24/2022]
Abstract
T follicular helper (Tfh) cells are essential for efficient B cell responses, yet the factors that regulate differentiation of this CD4+ T cell subset are incompletely understood. Here we found that the KLF2 transcription factor serves to restrain Tfh cell generation. Induced KLF2 deficiency in activated CD4+ T cells led to increased Tfh cell generation and B cell priming, while KLF2 overexpression prevented Tfh cell production. KLF2 promotes expression of the trafficking receptor S1PR1, and S1PR1 downregulation is essential for efficient Tfh cell production. However, KLF2 also induced expression of the transcription factor Blimp-1, which repressed transcription factor Bcl-6 and thereby impaired Tfh cell differentiation. Furthermore, KLF2 induced expression of the transcription factors T-bet and GATA3 and enhanced Th1 differentiation. Hence, our data indicate KLF2 is pivotal for coordinating CD4+ T cell differentiation through two distinct and complementary mechanisms: via control of T cell localization, and by regulation of lineage-defining transcription factors.
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Affiliation(s)
- June-Yong Lee
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55414, USA; Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN 55414, USA
| | - Cara N Skon
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55414, USA; Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN 55414, USA
| | - You Jeong Lee
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55414, USA; Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN 55414, USA
| | - Soohwan Oh
- Howard Hughes Medical Institute; Department of Medicine, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Justin J Taylor
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55414, USA; Department of Microbiology, University of Minnesota Medical School, Minneapolis, MN 55414, USA
| | - Deepali Malhotra
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55414, USA; Department of Microbiology, University of Minnesota Medical School, Minneapolis, MN 55414, USA
| | - Marc K Jenkins
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55414, USA; Department of Microbiology, University of Minnesota Medical School, Minneapolis, MN 55414, USA
| | - M Geoffrey Rosenfeld
- Howard Hughes Medical Institute; Department of Medicine, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Kristin A Hogquist
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55414, USA; Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN 55414, USA
| | - Stephen C Jameson
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN 55414, USA; Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN 55414, USA.
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Giannouli CC, Chandris P, Proia RL. Visualizing S1P-directed cellular egress by intravital imaging. Biochim Biophys Acta Mol Cell Biol Lipids 2013; 1841:738-44. [PMID: 24090699 DOI: 10.1016/j.bbalip.2013.09.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 09/18/2013] [Accepted: 09/20/2013] [Indexed: 12/12/2022]
Abstract
Sphingosine-1-phosphate (S1P) is a bioactive lipid that provides cellular signals through plasma membrane G protein-coupled receptors. The S1P receptor signaling system has a fundamental and widespread function in licensing the exit and release of hematopoietically derived cells from various tissues into the circulation. Although the outlines of the mechanism have been established through genetic and pharmacologic perturbations, the temporal and spatial dynamics of the cellular events involved have been unclear. Recently, two-photon intravital imaging has been applied to living tissues to visualize the cellular movements and interactions that occur during egress processes. Here we discuss how some of these recent findings provide a clearer picture regarding S1P receptor signaling in modulating cell egress into the circulation. This article is part of a Special Issue entitled New Frontiers in Sphingolipid Biology.
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Affiliation(s)
- Christina C Giannouli
- Genetics of Development and Disease Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Panagiotis Chandris
- Genetics of Development and Disease Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Richard L Proia
- Genetics of Development and Disease Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
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Teng F, Zhou Y, Jin R, Chen Y, Pei X, Liu Y, Dong J, Wang W, Pang X, Qian X, Chen WF, Zhang Y, Ge Q. The molecular signature underlying the thymic migration and maturation of TCRαβ+ CD4+ CD8 thymocytes. PLoS One 2011; 6:e25567. [PMID: 22022412 PMCID: PMC3192722 DOI: 10.1371/journal.pone.0025567] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Accepted: 09/05/2011] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND After positive selection, the newly generated single positive (SP) thymocytes migrate to the thymic medulla, where they undergo negative selection to eliminate autoreactive T cells and functional maturation to acquire immune competence and egress capability. METHODOLOGY/PRINCIPAL FINDINGS To elucidate the genetic program underlying this process, we analyzed changes in gene expression in four subsets of mouse TCRαβ(+)CD4(+)CD8(-) thymocytes (SP1 to SP4) representative of sequential stages in a previously defined differentiation program. A genetic signature of the migration of thymocytes was thus revealed. CCR7 and PlexinD1 are believed to be important for the medullary positioning of SP thymocytes. Intriguingly, their expression remains at low levels in the newly generated thymocytes, suggesting that the cortex-medulla migration may not occur until the SP2 stage. SP2 and SP3 cells gradually up-regulate transcripts involved in T cell functions and the Foxo1-KLF2-S1P(1) axis, but a number of immune function-associated genes are not highly expressed until cells reach the SP4 stage. Consistent with their critical role in thymic emigration, the expression of S1P(1) and CD62L are much enhanced in SP4 cells. CONCLUSIONS These results support at the molecular level that single positive thymocytes undergo a differentiation program and further demonstrate that SP4 is the stage at which thymocytes acquire the immunocompetence and the capability of emigration from the thymus.
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Affiliation(s)
- Fei Teng
- Department of Immunology, Peking University Health Science Center, Beijing, China
| | - Yubin Zhou
- Department of Immunology, Peking University Health Science Center, Beijing, China
| | - Rong Jin
- Department of Immunology, Peking University Health Science Center, Beijing, China
| | - Yu Chen
- Department of Immunology, Peking University Health Science Center, Beijing, China
| | - Xiaoyan Pei
- Department of Immunology, Peking University Health Science Center, Beijing, China
| | - Yuanfeng Liu
- Department of Immunology, Peking University Health Science Center, Beijing, China
| | - Jie Dong
- Department of Immunology, Peking University Health Science Center, Beijing, China
| | - Wei Wang
- Department of Immunology, Peking University Health Science Center, Beijing, China
| | - Xuewen Pang
- Department of Immunology, Peking University Health Science Center, Beijing, China
| | - Xiaoping Qian
- Department of Immunology, Peking University Health Science Center, Beijing, China
| | - Wei-Feng Chen
- Department of Immunology, Peking University Health Science Center, Beijing, China
| | - Yu Zhang
- Department of Immunology, Peking University Health Science Center, Beijing, China
- * E-mail: (QG); (Y. Zhang)
| | - Qing Ge
- Department of Immunology, Peking University Health Science Center, Beijing, China
- * E-mail: (QG); (Y. Zhang)
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Zachariah MA, Cyster JG. Neural crest-derived pericytes promote egress of mature thymocytes at the corticomedullary junction. Science 2010; 328:1129-35. [PMID: 20413455 DOI: 10.1126/science.1188222] [Citation(s) in RCA: 158] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
T cell egress from the thymus is essential for adaptive immunity, yet the requirements for and sites of egress are incompletely understood. We have shown that transgenic expression of sphingosine-1-phosphate receptor-1 (S1P1) in immature thymocytes leads to their perivascular accumulation and premature release into circulation. Using an intravascular procedure to label emigrating cells, we found that mature thymocytes exit via blood vessels at the corticomedullary junction. By deleting sphingosine kinases in neural crest-derived pericytes, we provide evidence that these specialized vessel-ensheathing cells contribute to the S1P that promotes thymic egress. Lymphatic endothelial cell-derived S1P was not required. These studies identify the major thymic egress route and suggest a role for pericytes in promoting reverse transmigration of cells across blood vessel endothelium.
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Affiliation(s)
- Marcus A Zachariah
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California San Francisco, 513 Parnassus Avenue, HSE1001, San Francisco, CA 94143, USA
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