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Kim DS, Na HS, Cho KH, Lee KH, Choi J, Kwok SK, Bae YS, Cho ML, Park SH. Sphingosylphosphorylcholine ameliorates experimental sjögren's syndrome by regulating salivary gland inflammation and hypofunction, and regulatory B cells. Immunol Lett 2022; 248:62-69. [PMID: 35732207 DOI: 10.1016/j.imlet.2022.06.008] [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: 02/11/2022] [Revised: 06/14/2022] [Accepted: 06/18/2022] [Indexed: 11/24/2022]
Abstract
Sjögren syndrome (SS) is an autoimmune disease in which immune cells infiltrate the exocrine gland. Since SS is caused by a disorder of the immune system, treatments should regulate the immune response. Sphingosylphosphorylcholine (SPC) is a sphingolipid that mediates cellular signaling. In immune cells, SPC has several immunomodulatory functions. Accordingly, this study verifies the immunomodulatory ability and therapeutic effect of SPC in SS. To understand the function of SPC in SS, we treated SPC in female NOD/ShiJcl (NOD) mice. The mice were monitored for 10 weeks, and inflammation in the salivary glands was checked. After SPC treatment, we detected the expression of regulatory B (Breg) cells in mouse splenocytes and the level of salivary secretion-related genes in human submandibular gland (HSG) cells. Salivary flow rate was maintained in the SPC-treated group compared to the vehicle-treated group, and inflammation in the salivary gland tissues was relieved by SPC. SPC treatment in mouse cells and HSG cells enhanced Breg cells and salivary secretion markers, respectively. This study revealed that SPC can be considered as a new therapeutic agent against SS.
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Affiliation(s)
- Da Som Kim
- Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, 222, Banpo-Daero, Seocho-gu, Seoul, 06591, Republic of Korea; Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Hyun Sik Na
- Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, 222, Banpo-Daero, Seocho-gu, Seoul, 06591, Republic of Korea; Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Keun-Hyung Cho
- Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, 222, Banpo-Daero, Seocho-gu, Seoul, 06591, Republic of Korea; Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Kun Hee Lee
- Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, 222, Banpo-Daero, Seocho-gu, Seoul, 06591, Republic of Korea; Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - JeongWon Choi
- Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, 222, Banpo-Daero, Seocho-gu, Seoul, 06591, Republic of Korea; Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seung-Ki Kwok
- Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, 222, Banpo-Daero, Seocho-gu, Seoul, 06591, Republic of Korea; Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 222, Banpo-Daero, Seocho-gu, Seoul, 06591, Republic of Korea
| | - Yoe-Sik Bae
- Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea; Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, 06355, Republic of Korea.
| | - Mi-La Cho
- Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, 222, Banpo-Daero, Seocho-gu, Seoul, 06591, Republic of Korea; Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Department of Medical Life Sciences, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea.
| | - Sung-Hwan Park
- Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, 222, Banpo-Daero, Seocho-gu, Seoul, 06591, Republic of Korea; Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 222, Banpo-Daero, Seocho-gu, Seoul, 06591, Republic of Korea.
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2
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Hwang SH, Woo JS, Moon J, Yang S, Park JS, Lee J, Choi J, Lee KH, Kwok SK, Park SH, Cho ML. IL-17 and CCR9 +α4β7 - Th17 Cells Promote Salivary Gland Inflammation, Dysfunction, and Cell Death in Sjögren's Syndrome. Front Immunol 2021; 12:721453. [PMID: 34539657 PMCID: PMC8440850 DOI: 10.3389/fimmu.2021.721453] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 08/04/2021] [Indexed: 12/26/2022] Open
Abstract
Previous studies have evaluated the roles of T and B cells in the pathogenesis of Sjögren's syndrome (SS); however, their relationships with age-dependent and metabolic abnormalities remain unclear. We examined the impacts of changes associated with aging or metabolic abnormalities on populations of T and B cells and SS disease severity. We detected increased populations of IL-17-producing T and B cells, which regulate inflammation, in the salivary glands of NOD/ShiLtJ mice. Inflammation-induced human submandibular gland cell death, determined based on p-MLKL and RIPK3 expression levels, was significantly increased by IL-17 treatment. Among IL-17-expressing cells in the salivary gland, peripheral blood, and spleen, the α4β7 (gut-homing integrin)-negative population was significantly increased in aged NOD/ShiLtJ mice. The α4β7-positive population markedly increased in the intestines of aged NOD/ShiLtJ mice following retinoic acid (RA) treatment. A significant increase in α4β7-negative IL-17-expressing cells in salivary glands may be involved in the onset and progression of SS. These results suggest the potential therapeutic utility of RA in SS treatment.
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Affiliation(s)
- Sun-Hee Hwang
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Jin Seok Woo
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Jeonghyeon Moon
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - SeungCheon Yang
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Jin-Sil Park
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - JaeSeon Lee
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - JeongWon Choi
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Kun Hee Lee
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea.,Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Seung-Ki Kwok
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea.,Divison of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Sung-Hwan Park
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea.,Divison of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Mi-La Cho
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea.,Department of Medical Lifescience, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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3
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Mhanna V, Fourcade G, Barennes P, Quiniou V, Pham HP, Ritvo PG, Brimaud F, Gouritin B, Churlaud G, Six A, Mariotti-Ferrandiz E, Klatzmann D. Impaired Activated/Memory Regulatory T Cell Clonal Expansion Instigates Diabetes in NOD Mice. Diabetes 2021; 70:976-985. [PMID: 33479057 DOI: 10.2337/db20-0896] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 01/19/2021] [Indexed: 11/13/2022]
Abstract
Regulatory T cell (Treg) insufficiency licenses the destruction of insulin-producing pancreatic β-cells by autoreactive effector T cells (Teffs), causing spontaneous autoimmune diabetes in NOD mice. We investigated the contribution to diabetes of the T-cell receptor (TCR) repertoires of naive regulatory T cells (nTregs), activated/memory Tregs (amTregs), and CD4+ Teffs from prediabetic NOD mice and normal C57BL/6 (B6) mice. NOD mice amTreg and Teff repertoire diversity was unexpectedly higher than that of B6 mice. This was due to the presence of highly expanded clonotypes in B6 amTregs and Teffs that were largely lost in their NOD counterparts. Interleukin-2 (IL-2) administration to NOD mice restored such amTreg clonotype expansions and prevented diabetes development. In contrast, IL-2 administration only led to few or no clonotype expansions in nTregs and Teffs, respectively. Noteworthily, IL-2-expanded amTreg and nTreg clonotypes were markedly enriched in islet-antigen specific TCRs. Altogether, our results highlight the link between a reduced clonotype expansion within the activated Treg repertoire and the development of an autoimmune disease. They also indicate that the repertoire of amTregs is amenable to rejuvenation by IL-2.
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Affiliation(s)
- Vanessa Mhanna
- Sorbonne Universite, INSERM, UMRS959 Immunology-Immunopathology-Immunotherapy Laboratory, Paris, France
| | - Gwladys Fourcade
- Sorbonne Universite, INSERM, UMRS959 Immunology-Immunopathology-Immunotherapy Laboratory, Paris, France
| | - Pierre Barennes
- Sorbonne Universite, INSERM, UMRS959 Immunology-Immunopathology-Immunotherapy Laboratory, Paris, France
| | - Valentin Quiniou
- Sorbonne Universite, INSERM, UMRS959 Immunology-Immunopathology-Immunotherapy Laboratory, Paris, France
- Clinical Investigation Center in Biotherapy and Inflammation-Immunopathology-Biotherapy Department, Assistance Publique-Hôpitaux de Paris, Hôpital Universitaire Pitié-Salpêtrière, Paris, France
| | - Hang P Pham
- Statistics Department, ILTOO Pharma, Paris, France
| | - Paul-Gydeon Ritvo
- Sorbonne Universite, INSERM, UMRS959 Immunology-Immunopathology-Immunotherapy Laboratory, Paris, France
| | - Faustine Brimaud
- Sorbonne Universite, INSERM, UMRS959 Immunology-Immunopathology-Immunotherapy Laboratory, Paris, France
| | - Bruno Gouritin
- Sorbonne Universite, INSERM, UMRS959 Immunology-Immunopathology-Immunotherapy Laboratory, Paris, France
| | - Guillaume Churlaud
- Sorbonne Universite, INSERM, UMRS959 Immunology-Immunopathology-Immunotherapy Laboratory, Paris, France
- Clinical Investigation Center in Biotherapy and Inflammation-Immunopathology-Biotherapy Department, Assistance Publique-Hôpitaux de Paris, Hôpital Universitaire Pitié-Salpêtrière, Paris, France
| | - Adrien Six
- Sorbonne Universite, INSERM, UMRS959 Immunology-Immunopathology-Immunotherapy Laboratory, Paris, France
| | | | - David Klatzmann
- Sorbonne Universite, INSERM, UMRS959 Immunology-Immunopathology-Immunotherapy Laboratory, Paris, France
- Clinical Investigation Center in Biotherapy and Inflammation-Immunopathology-Biotherapy Department, Assistance Publique-Hôpitaux de Paris, Hôpital Universitaire Pitié-Salpêtrière, Paris, France
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4
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Li J, Xue H, Ma Q, He X, Ma L, Shi B, Sun S, Yao X. Heterogeneity of CD4 +CD25 +Foxp3 +Treg TCR β CDR3 Repertoire Based on the Differences of Symbiotic Microorganisms in the Gut of Mice. Front Cell Dev Biol 2020; 8:576445. [PMID: 32984355 PMCID: PMC7490519 DOI: 10.3389/fcell.2020.576445] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 08/13/2020] [Indexed: 12/12/2022] Open
Abstract
Gut microbes play a crucial role in the occurrence and development of autoimmune diseases. The diversity of intestinal microorganisms affected by the living environment, regulate the immune function of peripheral immune organs and local tissues. In the study, the diversity of intestinal microorganisms of Germ-free (GF), Specific Pathogen-free (SPF), and Clean (CL) BALB/c mice were conducted by 16S rDNA sequencing. High-throughput sequencing technology was used to analysis the composition and characterization of TCR β chain CDR3 repertoires in Regulatory T cells (Treg) in intestine and spleen of GF, SPF, and CL mice, so as to investigate the effects of differential composition of intestinal microorganisms on the CD4+CD25+Foxp3+Treg TCR β CDR3 repertoire of intestine and spleen. We observed that GF, SPF, and CL mice have different gut microorganism composition, and the abundance and quantity of microorganisms are positively correlated with the level of feeding environment. Interestingly, incomplete structure of spleen and small intestine in GF mice was found. Moreover, a significant difference in the usage of high frequency unique CDR3 amino acid sequences was detected in the intestinal Treg TCRβ CDR3 repertoire among GF, SPF and CL mice, and there were a greater heterogeneity in the usage frequency of TRBV, TRBJ, and TRBV-TRBJ combinations gene segments. However, the effect of different feeding environment on the mice Treg TCRβ CDR3 repertoire of spleen was weak, implying that the different composition of intestinal microbiota may primarily affect the diversity of the local Treg TCRβ CDR3 repertoire and does not alter the overall properties of the circulating immune system. These results provide basic data to further analyze the mechanism of gut microbes regulating the intestinal mucosal immune system.
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Affiliation(s)
- Jun Li
- Department of Immunology, Center of Immunomolecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China
| | - Huaijuan Xue
- Department of Immunology, Center of Immunomolecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China
| | - Qingqing Ma
- Department of Laboratory Medicine, Guizhou Aerospace Hospital, Zunyi, China
| | - Xiaoyan He
- Department of Immunology, Center of Immunomolecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China
| | - Long Ma
- Department of Immunology, Center of Immunomolecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China
| | - Bin Shi
- Department of Immunology, Center of Immunomolecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China
| | - Suhong Sun
- Department of Breast Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Xinsheng Yao
- Department of Immunology, Center of Immunomolecular Engineering, Innovation & Practice Base for Graduate Students Education, Zunyi Medical University, Zunyi, China
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5
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Martin K, Touil R, Kolb Y, Cvijetic G, Murakami K, Israel L, Duraes F, Buffet D, Glück A, Niwa S, Bigaud M, Junt T, Zamurovic N, Smith P, McCoy KD, Ohashi PS, Bornancin F, Calzascia T. Malt1 Protease Deficiency in Mice Disrupts Immune Homeostasis at Environmental Barriers and Drives Systemic T Cell-Mediated Autoimmunity. THE JOURNAL OF IMMUNOLOGY 2019; 203:2791-2806. [PMID: 31659015 DOI: 10.4049/jimmunol.1900327] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 09/16/2019] [Indexed: 12/13/2022]
Abstract
The paracaspase Malt1 is a key regulator of canonical NF-κB activation downstream of multiple receptors in both immune and nonimmune cells. Genetic disruption of Malt1 protease function in mice and MALT1 mutations in humans results in reduced regulatory T cells and a progressive multiorgan inflammatory pathology. In this study, we evaluated the altered immune homeostasis and autoimmune disease in Malt1 protease-deficient (Malt1PD) mice and the Ags driving disease manifestations. Our data indicate that B cell activation and IgG1/IgE production is triggered by microbial and dietary Ags preferentially in lymphoid organs draining mucosal barriers, likely as a result of dysregulated mucosal immune homeostasis. Conversely, the disease was driven by a polyclonal T cell population directed against self-antigens. Characterization of the Malt1PD T cell compartment revealed expansion of T effector memory cells and concomitant loss of a CD4+ T cell population that phenotypically resembles anergic T cells. Therefore, we propose that the compromised regulatory T cell compartment in Malt1PD animals prevents the efficient maintenance of anergy and supports the progressive expansion of pathogenic, IFN-γ-producing T cells. Overall, our data revealed a crucial role of the Malt1 protease for the maintenance of intestinal and systemic immune homeostasis, which might provide insights into the mechanisms underlying IPEX-related diseases associated with mutations in MALT1.
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Affiliation(s)
- Kea Martin
- Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - Ratiba Touil
- Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - Yeter Kolb
- Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - Grozdan Cvijetic
- Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - Kiichi Murakami
- The Campbell Family Cancer Research Institute, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario M5G 2M9, Canada
| | - Laura Israel
- Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - Fernanda Duraes
- Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - David Buffet
- Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - Anton Glück
- Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - Satoru Niwa
- Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - Marc Bigaud
- Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - Tobias Junt
- Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - Natasa Zamurovic
- Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - Philip Smith
- Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - Kathy D McCoy
- Department of Clinical Research, University Clinic for Visceral Surgery and Medicine, University Hospital, 3010 Bern, Switzerland; and
| | - Pamela S Ohashi
- The Campbell Family Cancer Research Institute, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario M5G 2M9, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario M5G 2C1, Canada
| | - Frédéric Bornancin
- Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - Thomas Calzascia
- Novartis Institutes for BioMedical Research, Novartis Pharma AG, 4002 Basel, Switzerland;
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Holohan DR, Van Gool F, Bluestone JA. Thymically-derived Foxp3+ regulatory T cells are the primary regulators of type 1 diabetes in the non-obese diabetic mouse model. PLoS One 2019; 14:e0217728. [PMID: 31647813 PMCID: PMC6812862 DOI: 10.1371/journal.pone.0217728] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 10/03/2019] [Indexed: 01/07/2023] Open
Abstract
Regulatory T cells (Tregs) are an immunosuppressive population that are identified based on the stable expression of the fate-determining transcription factor forkhead box P3 (Foxp3). Tregs can be divided into distinct subsets based on whether they developed in the thymus (tTregs) or in the periphery (pTregs). Whether there are unique functional roles that distinguish pTregs and tTregs remains largely unclear. To elucidate these functions, efforts have been made to specifically identify and modify individual Treg subsets. Deletion of the conserved non-coding sequence (CNS)1 in the Foxp3 locus leads to selective impairment of pTreg generation without disrupting tTreg generation in the C57BL/6J background. Using CRISPR-Cas9 genome editing technology, we removed the Foxp3 CNS1 region in the non-obese diabetic (NOD) mouse model of spontaneous type 1 diabetes mellitus (T1D) to determine if pTregs contribute to autoimmune regulation. Deletion of CNS1 impaired in vitro induction of Foxp3 in naïve NOD CD4+ T cells, but it did not alter Tregs in most lymphoid and non-lymphoid tissues analyzed except for the large intestine lamina propria, where a small but significant decrease in RORγt+ Tregs and corresponding increase in Helios+ Tregs was observed in NOD CNS1-/- mice. CNS1 deletion also did not alter the development of T1D or glucose tolerance despite increased pancreatic insulitis in pre-diabetic female NOD CNS1-/- mice. Furthermore, the proportions of autoreactive Tregs and conventional T cells (Tconvs) within pancreatic islets were unchanged. These results suggest that pTregs dependent on the Foxp3 CNS1 region are not the dominant regulatory population controlling T1D in the NOD mouse model.
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MESH Headings
- Animals
- CD4-Positive T-Lymphocytes/immunology
- CD4-Positive T-Lymphocytes/metabolism
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/immunology
- DNA-Binding Proteins/metabolism
- Diabetes Mellitus, Type 1/genetics
- Diabetes Mellitus, Type 1/immunology
- Diabetes Mellitus, Type 1/metabolism
- Disease Models, Animal
- Female
- Forkhead Transcription Factors/genetics
- Forkhead Transcription Factors/immunology
- Forkhead Transcription Factors/metabolism
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Inbred NOD
- Mice, Knockout
- Nuclear Receptor Subfamily 1, Group F, Member 3/genetics
- Nuclear Receptor Subfamily 1, Group F, Member 3/immunology
- Nuclear Receptor Subfamily 1, Group F, Member 3/metabolism
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- Thymus Gland/cytology
- Thymus Gland/immunology
- Thymus Gland/metabolism
- Transcription Factors/genetics
- Transcription Factors/immunology
- Transcription Factors/metabolism
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Affiliation(s)
- Daniel R. Holohan
- Diabetes Center, University of California, San Francisco, San Francisco, CA, United States of America
- Sean N. Parker Autoimmune Research Laboratory, University of California, San Francisco, San Francisco, CA, United States of America
| | - Frédéric Van Gool
- Diabetes Center, University of California, San Francisco, San Francisco, CA, United States of America
- Sean N. Parker Autoimmune Research Laboratory, University of California, San Francisco, San Francisco, CA, United States of America
| | - Jeffrey A. Bluestone
- Diabetes Center, University of California, San Francisco, San Francisco, CA, United States of America
- Sean N. Parker Autoimmune Research Laboratory, University of California, San Francisco, San Francisco, CA, United States of America
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Immune modulation by rebamipide in a mouse model of Sjogren's syndrome via T and B cell regulation. Immunol Lett 2019; 214:1-7. [PMID: 31421154 DOI: 10.1016/j.imlet.2019.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/22/2019] [Accepted: 07/23/2019] [Indexed: 12/24/2022]
Abstract
Rebamipide is a gastroprotective drug used widely in the treatment of gastritis and gastric ulcers. It has also been shown to improve dry eye and dry mouth, two major symptoms of Sjogren's syndrome (SS). However, little is known about the effects of rebamipide on T and B cell regulation in SS. In this study, we used a NOD/ShiLtJ mouse model of SS to examine the ability of rebamipide to ameliorate disease development by modulating T and B cells. Our results show that the oral administration of rebamipide suppressed SS progression and the level of inflammatory cytokines, including interleukin (IL)-6, tumor necrosis factor-α, and IL-17, in the salivary glands and spleen of NOD/ShiLtJ mice. Rebamipide treatment also increased the number of ex vivo CD19+CD25+Foxp3+ regulatory B cells and CD19+CD5+CD1d + IL-10+ cells in NOD/ShiLtJ mice. In vitro, rebamipide suppressed IL-6 and IL-17 production by Th17 cells in splenic CD4+ cells from the mice. Thus, rebamipide may be effective in controlling the immune imbalance between pathogenic immune cells and regulatory cells, resulting in fundamental improvement in patients with SS.
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8
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Unique glandular ex-vivo Th1 and Th17 receptor motifs in Sjögren's syndrome patients using single-cell analysis. Clin Immunol 2018; 192:58-67. [PMID: 29679709 DOI: 10.1016/j.clim.2018.04.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 03/28/2018] [Accepted: 04/17/2018] [Indexed: 02/06/2023]
Abstract
Primary Sjögren's syndrome (pSS) is an autoimmune disease in which the underlying cause has yet to be elucidated. The main objective of this study was to determine the T cell receptor (TCR) repertoires of individual infiltrating T helper (Th)-1 and 17 cells of pSS patients using single-cell analysis. Single-cell analysis of ex-vivo infiltrating T cells demonstrated that pSS patients had higher frequencies of activated Th17 cells. Single-cell TCR sequencing revealed that TCRβ variable (TRBV)3-1/joint (J)1-2 (CLFLSMSACVW) and TRBV20-1/J1-1 (SVGSTAIPP*T) were expressed by activated Th1 and Th17 cells in both cohorts. Uniquely, TCRα variable (TRAV)8-2/J5 (VVSDTVLETAGE) was expressed by Th1 cells present only in patients and complementarity-determining region (CDR)3α-specific motif (LSTD*E) present in both Th1/Th17 cells. The study demonstrates that both activated Th1 and Th17 cells of pSS patients showed restricted clonal diversities of which two CDR3 motifs were present in controls and patients, with another two motifs unique to pSS.
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9
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Wanchoo A, Voigt A, Sukumaran S, Stewart CM, Bhattacharya I, Nguyen CQ. Single-cell analysis reveals sexually dimorphic repertoires of Interferon-γ and IL-17A producing T cells in salivary glands of Sjögren's syndrome mice. Sci Rep 2017; 7:12512. [PMID: 28970488 PMCID: PMC5624952 DOI: 10.1038/s41598-017-12627-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 09/13/2017] [Indexed: 12/23/2022] Open
Abstract
The development of Sjögren's syndrome (SjS) is a dynamic and temporal process with a female predilection. Following the initial influx of immune cells, T cell clusters develop, accelerating the pathology in the salivary glands. Proinflammatory cytokines, IFN-γ and IL-17A, produced by T cells contribute synergistically to the disease. In this study, we examined the sexual dimorphism in cellular infiltrates of the salivary glands by using functional single-cell microengraving analysis. Using high-throughput sequencing, we investigated the clonal diversity of the T cell receptors (TCRs) of infiltrating IFN-γ and IL-17A-producing T cells in male and female SjS-susceptible (SjSs) C57BL/6.NOD-Aec1Aec2 mice. There were elevated frequencies of IFN-γ and IL-17A-producing effector T cell populations in female SjSS mice compared to male SjSS mice. MEME analysis shows high frequency and unique, sexually dimorphic motifs in the TCR hypervariable regions in the SjSS mice. Male mice selected for TRAV8/TRAJ52 (CATDLNTGANTGKLTFG) TCR genes in Th1 cells and TRBV16/(TRBD1/2)TRBJ1-7 (CGGKRRLESIFR) in Th1 and Th17 cells. Female SjSS mice selected for TRAV8/TRAJ52 (CATDLNTGANTGKLTFG), TRAV13D-2/TRAJ23 (CVYLEHHFE), and TRBV23/(TRBD2)TRBJ2-2 (CRKLHSCATCALNFL) in Th1 cells. These findings suggest that there is an elevated prevalence of pathogenic effector T cells in the glands with a sexually dimorphic selection bias of TCR repertoires.
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Affiliation(s)
- Arun Wanchoo
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, Gainesville Florida, USA
| | - Alexandria Voigt
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, Gainesville Florida, USA
| | - Sukesh Sukumaran
- Rheumatology Section, University of Arkansas for Medical Sciences, Arkansas Children's Hospital, Little Rock Arkansas, USA
| | - Carol M Stewart
- Department of Oral and Maxillofacial Diagnostic Sciences, Gainesville Florida, USA
- Center of Orphaned Autoimmune Diseases, University of Florida, Gainesville Florida, USA
| | - Indraneel Bhattacharya
- Department of Oral and Maxillofacial Diagnostic Sciences, Gainesville Florida, USA
- Center of Orphaned Autoimmune Diseases, University of Florida, Gainesville Florida, USA
| | - Cuong Q Nguyen
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, Gainesville Florida, USA.
- Department of Oral Biology, Gainesville Florida, USA.
- Center of Orphaned Autoimmune Diseases, University of Florida, Gainesville Florida, USA.
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