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Gumkowska-Sroka O, Kotyla K, Kotyla P. Immunogenetics of Systemic Sclerosis. Genes (Basel) 2024; 15:586. [PMID: 38790215 PMCID: PMC11121022 DOI: 10.3390/genes15050586] [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: 04/07/2024] [Revised: 04/27/2024] [Accepted: 04/29/2024] [Indexed: 05/26/2024] Open
Abstract
Systemic sclerosis (SSc) is a rare autoimmune connective tissue disorder characterized by massive fibrosis, vascular damage, and immune imbalance. Advances in rheumatology and immunology over the past two decades have led to a redefinition of systemic sclerosis, shifting from its initial perception as primarily a "hyperfibrotic" state towards a recognition of systemic sclerosis as an immune-mediated disease. Consequently, the search for genetic markers has transitioned from focusing on fibrotic mechanisms to exploring immune regulatory pathways. Immunogenetics, an emerging field at the intersection of immunology, molecular biology, and genetics has provided valuable insights into inherited factors that influence immunity. Data from genetic studies conducted thus far indicate that alterations in genetic messages can significantly impact disease risk and progression. While certain genetic variations may confer protective effects, others may exacerbate disease susceptibility. This paper presents a comprehensive review of the most relevant genetic changes that influence both the risk and course of systemic sclerosis. Special emphasis is placed on factors regulating the immune response, recognizing their pivotal role in the pathogenesis of the disease.
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Affiliation(s)
| | | | - Przemysław Kotyla
- Department of Rheumatology and Clinical Immunology, Medical University of Silesia, Voivodeship Hospital No. 5, 41-200 Sosnowiec, Poland; (O.G.-S.); (K.K.)
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Ortíz-Fernández L, Martín J, Alarcón-Riquelme ME. A Summary on the Genetics of Systemic Lupus Erythematosus, Rheumatoid Arthritis, Systemic Sclerosis, and Sjögren's Syndrome. Clin Rev Allergy Immunol 2022; 64:392-411. [PMID: 35749015 DOI: 10.1007/s12016-022-08951-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/31/2022] [Indexed: 11/03/2022]
Abstract
Systemic lupus erythematosus, systemic sclerosis, rheumatoid arthritis, and Sjögren's syndrome are four major autoimmune rheumatic diseases characterized by the presence of autoantibodies, caused by a dysregulation of the immune system that leads to a wide variety of clinical manifestations. These conditions present complex etiologies strongly influenced by multiple environmental and genetic factors. The human leukocyte antigen (HLA) region was the first locus identified to be associated and still represents the strongest susceptibility factor for each of these conditions, particularly the HLA class II genes, including DQA1, DQB1, and DRB1, but class I genes have also been associated. Over the last two decades, the genetic component of these disorders has been extensively investigated and hundreds of non-HLA risk genetic variants have been uncovered. Furthermore, it is widely accepted that autoimmune rheumatic diseases share molecular disease pathways, such as the interferon (IFN) type I pathways, which are reflected in a common genetic background. Some examples of well-known pleiotropic loci for autoimmune rheumatic diseases are the HLA region, DNASEL13, TNIP1, and IRF5, among others. The identification of the causal molecular mechanisms behind the genetic associations is still a challenge. However, recent advances have been achieved through mouse models and functional studies of the loci. Here, we provide an updated overview of the genetic architecture underlying these four autoimmune rheumatic diseases, with a special focus on the HLA region.
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Affiliation(s)
- Lourdes Ortíz-Fernández
- Institute of Parasitology and Biomedicine López-Neyra, CSIC, Parque Tecnológico de La Salud, 18016, Granada, Spain
| | - Javier Martín
- Institute of Parasitology and Biomedicine López-Neyra, CSIC, Parque Tecnológico de La Salud, 18016, Granada, Spain
| | - Marta E Alarcón-Riquelme
- GENYO. Center for Genomics and Oncological Research, Pfizer/University of Granada/Andalusian Regional Government, Av de la Ilustración 114, Parque Tecnológico de La Salud, 18016, Granada, Spain. .,Institute for Environmental Medicine, Karolinska Institutet, 171 77, Solna, Sweden.
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Tu J, Jin J, Chen X, Sun L, Cai Z. Altered Cellular Immunity and Differentially Expressed Immune-Related Genes in Patients With Systemic Sclerosis-Associated Pulmonary Arterial Hypertension. Front Immunol 2022; 13:868983. [PMID: 35663995 PMCID: PMC9159786 DOI: 10.3389/fimmu.2022.868983] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 04/20/2022] [Indexed: 12/12/2022] Open
Abstract
Systemic sclerosis (SSc) is the most common connective tissue disease causing pulmonary hypertension (PAH). However, the cause and potential immune molecular events associated with PAH are still unclear. Therefore, it is particularly essential to analyze the changes in SSc-PAH–related immune cells and their immune-related genes. Three microarray datasets (GSE22356, GSE33463, and GSE19617) were obtained by the Gene Expression Omnibus (GEO). Compared with SSc, we found neutrophils have a statistically higher abundance, while T-cell CD4 naive and T-cell CD4 memory resting have a statistically lower abundance in peripheral blood mononuclear cells (PBMCs). Moreover, the results of Gene Set Enrichment Analysis (GSEA) showed there is a differential enrichment of multiple pathways between SSc and SSc-PAH. By combining differentiated expressed genes (DEGs) and immune-related genes (IRGs), fifteen IRGs were selected. In addition, we also analyzed the first five rich Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways and the most abundant Gene Ontology (GO)-molecular functional terms. Furthermore, interleukin-7 receptor (IL-7R), tyrosine–protein kinase (LCK), histone deacetylase 1 (HDAC1), and epidermal growth factor receptor (EGFR) genes were identified as hub genes via protein–protein interaction (PPI) network analysis. The Comparative Toxic Genomics Database (CTD) analysis result showed that LCK, HDAC1, and EGFR have a higher score with SSc. Coexpression network analysis confirmed that IL-7R, LCK, and HDAC1 are key genes related to immune regulation in SSc without PAH and are involved in T-cell immune regulation. Subsequently, using GSE22356 and GSE33463 as the test sets and GSE19617 as the verification set, it was verified that the mRNA expression levels of the three central genes of SSc-PAH were significantly lower than those of the SSc without PAH samples. Consistent with previous predictions, the expressions of IL-7R, LCK, and HDAC1 are positively correlated with the numbers of T-cell CD4 naive and T-cell CD4 memory, while the expressions of IL-7R and LCK are negatively correlated with the numbers of neutrophils in the peripheral blood. Therefore, this evidence may suggest that these three immune-related genes: IL-7R, LCK, and HDAC1, may be highly related to the immunological changes in SSc-PAH. These three molecules can reduce T cells in SSc-PAH PBMCs through the regulation of T-cell activation, which suggests that these three molecules may be involved in the development of SSc-PAH. Meanwhile, the low expression of IL-7R, LCK, and HDAC1 detected in the peripheral blood of SSc may indicate the possibility of PAH and hopefully become a biomarker for the early detection of SSc-PAH. Finally, 49 target miRNAs of 3 specifically expressed hub genes were obtained, and 49 mRNA–miRNA pairs were identified, which provided directions for our further research.
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Affiliation(s)
- Jianxin Tu
- Bone Marrow Transplantation Center, Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Department of Rheumatology, The First Affiliated Hospital of Wenzhou University, Wenzhou, China
| | - Jinji Jin
- Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou University, Wenzhou, China
| | - Xiaowei Chen
- Department of Rheumatology, The First Affiliated Hospital of Wenzhou University, Wenzhou, China
| | - Li Sun
- Department of Rheumatology, The First Affiliated Hospital of Wenzhou University, Wenzhou, China
| | - Zhen Cai
- Bone Marrow Transplantation Center, Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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Beesley CF, Goldman NR, Taher TE, Denton CP, Abraham DJ, Mageed RA, Ong VH. Dysregulated B cell function and disease pathogenesis in systemic sclerosis. Front Immunol 2022; 13:999008. [PMID: 36726987 PMCID: PMC9885156 DOI: 10.3389/fimmu.2022.999008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 12/22/2022] [Indexed: 01/18/2023] Open
Abstract
Systemic sclerosis (SSc) is a complex, immune-mediated rheumatic disease characterised by excessive extracellular matrix deposition in the skin and internal organs. B cell infiltration into lesional sites such as the alveolar interstitium and small blood vessels, alongside the production of defined clinically relevant autoantibodies indicates that B cells play a fundamental role in the pathogenesis and development of SSc. This is supported by B cell and fibroblast coculture experiments revealing that B cells directly enhance collagen and extracellular matrix synthesis in fibroblasts. In addition, B cells from SSc patients produce large amounts of profibrotic cytokines such as IL-6 and TGF-β, which interact with other immune and endothelial cells, promoting the profibrotic loop. Furthermore, total B cell counts are increased in SSc patients compared with healthy donors and specific differences can be found in the content of naïve, memory, transitional and regulatory B cell compartments. B cells from SSc patients also show differential expression of activation markers such as CD19 which may shape interactions with other immune mediators such as T follicular helper cells and dendritic cells. The key role of B cells in SSc is further supported by the therapeutic benefit of B cell depletion with rituximab in some patients. It is notable also that B cell signaling is impaired in SSc patients, and this could underpin the failure to induce tolerance in B cells as has been shown in murine models of scleroderma.
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Affiliation(s)
- Claire F. Beesley
- Centre for Rheumatology, Division of Medicine, University College London, London, United Kingdom
- *Correspondence: Claire F. Beesley,
| | - Nina R. Goldman
- Centre for Rheumatology, Division of Medicine, University College London, London, United Kingdom
| | - Taher E. Taher
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
| | - Christopher P. Denton
- Centre for Rheumatology, Division of Medicine, University College London, London, United Kingdom
| | - David J. Abraham
- Centre for Rheumatology, Division of Medicine, University College London, London, United Kingdom
| | - Rizgar A. Mageed
- Centre for Translational Medicine and Therapeutics, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Voon H. Ong
- Centre for Rheumatology, Division of Medicine, University College London, London, United Kingdom
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The Immunogenetics of Systemic Sclerosis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1367:259-298. [DOI: 10.1007/978-3-030-92616-8_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Pu W, Zhang R, Ma Y, Liu Q, Jiang S, Liu J, Zhao Y, Tu W, Guo G, Zuo X, Wang Q, Chen Y, Wu W, Zhou X, Distler JHW, Reveille JD, Zou H, Jin L, Mayes MD, Wang J. Genetic associations of non-MHC susceptibility loci with systemic sclerosis in a Han Chinese population. J Invest Dermatol 2021; 142:2039-2042.e7. [PMID: 34919939 DOI: 10.1016/j.jid.2021.11.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 11/16/2021] [Accepted: 11/30/2021] [Indexed: 10/19/2022]
Affiliation(s)
- Weilin Pu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China; Research Unit of dissecting the population genetics and developing new technologies for treatment and prevention of skin phenotypes and dermatological diseases (2019RU058), Chinese Academy of Medical Sciences
| | - Rui Zhang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China; Institute for Six-sector Economy, Fudan University, Shanghai, 200433, China
| | - Yanyun Ma
- Institute for Six-sector Economy, Fudan University, Shanghai, 200433, China; Research Unit of dissecting the population genetics and developing new technologies for treatment and prevention of skin phenotypes and dermatological diseases (2019RU058), Chinese Academy of Medical Sciences
| | - Qingmei Liu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China; MOE Key Laboratory of Contemporary Anthropology, Fudan University, Shanghai, China
| | - Shuai Jiang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China; Department of Rheumatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Jing Liu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China; Department of Rheumatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yinhuan Zhao
- Division of Rheumatology, Shanghai TCM-integrated Hospital, Shanghai, China
| | - Wenzhen Tu
- Division of Rheumatology, Shanghai TCM-integrated Hospital, Shanghai, China
| | - Gang Guo
- Department of Rheumatology, Yiling Hospital, Shijiazhuang, China
| | - Xiaoxia Zuo
- Department of Rheumatology, Xiangya Hospital, Central South University
| | - Qingwen Wang
- Rheumatology and Immunology Department, Peking University Shenzhen Hospital, Shenzhen, China
| | - Yuanyuan Chen
- Division of Rheumatology, Shanghai TCM-integrated Hospital, Shanghai, China
| | - Wenyu Wu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China; Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China
| | - Xiaodong Zhou
- Division of Rheumatology and Clinical Immunogenetics, the University of Texas-McGovern Medical School, Houston, TX, USA
| | - Jörg H W Distler
- Department of Internal Medicine 3 and Institute for Clinical Immunology, University of Erlangen, Nuremberg, Germany
| | - John D Reveille
- Division of Rheumatology and Clinical Immunogenetics, the University of Texas-McGovern Medical School, Houston, TX, USA
| | - Hejian Zou
- Department of Rheumatology, Huashan Hospital, Fudan University, Shanghai, China; Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China
| | - Li Jin
- State Key Laboratory of Genetic Engineering, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China; Research Unit of dissecting the population genetics and developing new technologies for treatment and prevention of skin phenotypes and dermatological diseases (2019RU058), Chinese Academy of Medical Sciences; Collaborative Innovation Center for Genetics and Development, Fudan University, Shanghai, China
| | - Maureen D Mayes
- Division of Rheumatology and Clinical Immunogenetics, the University of Texas-McGovern Medical School, Houston, TX, USA
| | - Jiucun Wang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China; Research Unit of dissecting the population genetics and developing new technologies for treatment and prevention of skin phenotypes and dermatological diseases (2019RU058), Chinese Academy of Medical Sciences; Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China; Collaborative Innovation Center for Genetics and Development, Fudan University, Shanghai, China.
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Micus LC, Trautschold-Krause FS, Jelit AL, Schön MP, Lorenz VN. NF-кB c-Rel modulates pre-fibrotic changes in human fibroblasts. Arch Dermatol Res 2021; 314:943-951. [PMID: 34888734 PMCID: PMC9522690 DOI: 10.1007/s00403-021-02310-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 09/03/2021] [Accepted: 11/16/2021] [Indexed: 11/30/2022]
Abstract
Skin fibrosis is one central hallmark of the heterogeneous autoimmune disease systemic sclerosis. So far, there are hardly any standardized and effective treatment options. Pathogenic mechanisms underlying fibrosis comprise excessive and uncontrolled myofibroblast differentiation, increased extracellular matrix protein (ECM) synthesis and an intensification of the forces exerted by the cytoskeleton. A deeper understanding of fibroblast transformation could help to prevent or reverse fibrosis by specifically interfering with abnormally regulated signaling pathways. The transcription factor NF-κB has been implicated in the progression of fibrotic processes. However, the cellular processes regulated by NF-κB in fibrosis as well as the NF-κB isoforms preferentially involved are still completely unknown. In an in vitro model of fibrosis, we consistently observed the induction of the c-Rel subunit of NF-κB. Functional abrogation of c-Rel by siRNA resulted in diminished cell contractility of dermal fibroblasts in relaxed, but not in stressed 3D collagen matrices. Furthermore, directed migration was reduced after c-Rel silencing and total N-cadherin expression level was diminished, possibly mediating the observed cellular defects. Therefore, NF-кB c-Rel impacts central cellular adhesion markers and processes which negatively regulate fibrotic progression in SSc pathophysiology.
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Affiliation(s)
- Lara Carolina Micus
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen Lower Saxony, Robert Koch Str. 40, 37075, Göttingen, Germany
| | - Franziska Susanne Trautschold-Krause
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen Lower Saxony, Robert Koch Str. 40, 37075, Göttingen, Germany
| | - Anna Lena Jelit
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen Lower Saxony, Robert Koch Str. 40, 37075, Göttingen, Germany
| | - Michael Peter Schön
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen Lower Saxony, Robert Koch Str. 40, 37075, Göttingen, Germany
| | - Verena Natalie Lorenz
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, Göttingen Lower Saxony, Robert Koch Str. 40, 37075, Göttingen, Germany.
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Hinchcliff M, Garcia-Milian R, Di Donato S, Dill K, Bundschuh E, Galdo FD. Cellular and Molecular Diversity in Scleroderma. Semin Immunol 2021; 58:101648. [PMID: 35940960 DOI: 10.1016/j.smim.2022.101648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
With the increasing armamentarium of high-throughput tools available at manageable cost, it is attractive and informative to determine the molecular underpinnings of patient heterogeneity in systemic sclerosis (SSc). Given the highly variable clinical outcomes of patients labelled with the same diagnosis, unravelling the cellular and molecular basis of disease heterogeneity will be crucial to predicting disease risk, stratifying management and ultimately informing a patient-centered precision medicine approach. Herein, we summarise the findings of the past several years in the fields of genomics, transcriptomics, and proteomics that contribute to unraveling the cellular and molecular heterogeneity of SSc. Expansion of these findings and their routine integration with quantitative analysis of histopathology and imaging studies into clinical care promise to inform a scientifically driven patient-centred personalized medicine approach to SSc in the near future.
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Affiliation(s)
- Monique Hinchcliff
- Yale School of Medicine, Department of Internal Medicine, Section of Rheumatology, Allergy & Immunology, USA.
| | | | - Stefano Di Donato
- Raynaud's and Scleroderma Programme, Leeds Institute of Rheumatic and Musculoskeletal Medicine and NIHR Biomedical Research Centre, University of Leeds, UK
| | | | - Elizabeth Bundschuh
- Yale School of Medicine, Department of Internal Medicine, Section of Rheumatology, Allergy & Immunology, USA
| | - Francesco Del Galdo
- Raynaud's and Scleroderma Programme, Leeds Institute of Rheumatic and Musculoskeletal Medicine and NIHR Biomedical Research Centre, University of Leeds, UK.
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Ota Y, Kuwana M. Updates on genetics in systemic sclerosis. Inflamm Regen 2021; 41:17. [PMID: 34130729 PMCID: PMC8204536 DOI: 10.1186/s41232-021-00167-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 05/24/2021] [Indexed: 12/15/2022] Open
Abstract
Systemic sclerosis (SSc) is a complex disease, in which an interaction of genetic and environmental factors plays an important role in its development and pathogenesis. A number of genetic studies, including candidate gene analysis and genome-wide association study, have found that the associated genetic variants are mainly localized in noncoding regions in the expression quantitative trait locus and influence corresponding gene expression. The gene variants identified as a risk for SSc susceptibility include those associated with innate immunity, adaptive immune response, and cell death, while there are only few SSc-associated genes involved in the fibrotic process or vascular homeostasis. Human leukocyte antigen class II genes are associated with SSc-related autoantibodies rather than SSc itself. Since the pathways between the associated genotype and phenotype are still poorly understood, further investigations using multi-omics technologies are necessary to characterize the complex molecular architecture of SSc, identify biomarkers useful to predict future outcomes and treatment responses, and discover effective drug targets.
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Affiliation(s)
- Yuko Ota
- Department of Allergy and Rheumatology, Nippon Medical School Graduate School of Medicine, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603-8582, Japan
| | - Masataka Kuwana
- Department of Allergy and Rheumatology, Nippon Medical School Graduate School of Medicine, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603-8582, Japan.
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Mancini OK, Acevedo M, Fazez N, Cuillerier A, Ruiz AF, Huynh DN, Burelle Y, Ferbeyre G, Baron M, Servant MJ. Oxidative stress-induced senescence mediates inflammatory and fibrotic phenotypes in fibroblasts from systemic sclerosis patients. Rheumatology (Oxford) 2021; 61:1265-1275. [PMID: 34115840 DOI: 10.1093/rheumatology/keab477] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 05/28/2021] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE Systemic sclerosis (SSc) is an autoimmune connective tissue disorder characterized by inflammation and fibrosis. Although constitutive activation of fibroblasts is proposed to be responsible for the fibrotic and inflammatory features of the disease, the underlying mechanism remains elusive and, effective therapeutic targets are still lacking. The aim of this study was to evaluate the role of oxidative stress-induced senescence and its contribution to the pro-fibrotic and pro-inflammatory phenotypes of fibroblasts from SSc patients. METHODS Dermal fibroblasts were isolated from SSc (n = 13) and healthy (n = 10) donors. Fibroblast's intracellular and mitochondrial reactive oxygen species were determined by flow cytometry. Mitochondrial function measured by Seahorse XF24 analyzer. Fibrotic and inflammatory gene expressions were assessed by qPCR and key pro-inflammatory components of the fibroblasts' secretome (interleukin (IL) 6 and IL8) were quantified by ELISA. RESULTS Compared to healthy fibroblasts, SSc fibroblasts displayed higher levels of both intracellular and mitochondrial ROS. Oxidative stress in SSc fibroblasts induced the expression of fibrotic genes and activated the transforming growth factor-β-activated kinase 1 (TAK1) -IκB kinase β (IKKβ)- interferon regulatory factor 5 (IRF5) inflammatory signaling cascade. These cellular responses paralleled the presence of a DNA damage response, a senescence-associated secretory phenotype and a fibrotic response. Treatment of SSc fibroblasts with ROS scavengers reduced their pro-inflammatory secretome production and fibrotic gene expression. CONCLUSIONS Oxidative stress-induced cellular senescence in SSc fibroblasts underlies their pro-inflammatory and pro-fibrotic phenotypes. Targeting redox imbalance of SSc fibroblasts enhances their in vitro functions and could be of relevance for SSc therapy.
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Affiliation(s)
| | | | - Nesrine Fazez
- Faculty of Pharmacy, Université de Montréal, Québec, Canada
| | - Alexanne Cuillerier
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ontario, Canada
| | - Ana Fernandez Ruiz
- Département de biochimie et médecine moléculaire, Université de Montréal, Montréal, Québec, Canada
| | - David N Huynh
- Faculty of Pharmacy, Université de Montréal, Québec, Canada
| | - Yan Burelle
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ontario, Canada
| | - Gerardo Ferbeyre
- Département de biochimie et médecine moléculaire, Université de Montréal, Montréal, Québec, Canada
| | - Murray Baron
- McGill University, Jewish General Hospital, Montréal, Québec, Canada
| | - Marc J Servant
- Faculty of Pharmacy, Université de Montréal, Québec, Canada
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Abstract
PURPOSE OF REVIEW To review susceptibility genes and how they could integrate in systemic sclerosis (SSc) pathophysiology providing insight and perspectives for innovative therapies. RECENT FINDINGS SSc is a rare disease characterized by vasculopathy, dysregulated immunity and fibrosis. Genome-Wide association studies and ImmunoChip studies performed in recent years revealed associated genetic variants mainly localized in noncoding regions and mostly affecting the immune system of SSc patients. Gene variants were described in innate immunity (IRF5, IRF7 and TLR2), T and B cells activation (CD247, TNFAIP3, STAT4 and BLK) and NF-κB pathway (TNFAIP3 and TNIP1) confirming previous biological data. In addition to impacting immune response, CSK, DDX6, DNASE1L3 and GSDMA/B could also act in the vascular and fibrotic components of SSc. SUMMARY Although genetic studies highlighted the dysregulated immune response in SSc, future research must focus on a deeper characterization of these variants with determination of their functional effects. Moreover, the role of these genes or others on specific vasculopathy and fibrosis would provide insight. Establishment of polygenic score or integrated genome approaches could identify new targets specific of SSc clinical features. This will allow physicians to propose new therapies to SSc patients.
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Worrell JC, Leslie J, Smith GR, Zaki MYW, Paish HL, Knox A, James ML, Cartwright TN, O'Reilly S, Kania G, Distler O, Distler JHW, Herrick AL, Jeziorska M, Borthwick LA, Fisher AJ, Mann J, Mann DA, Oakley F. cRel expression regulates distinct transcriptional and functional profiles driving fibroblast matrix production in systemic sclerosis. Rheumatology (Oxford) 2021; 59:3939-3951. [PMID: 32725139 DOI: 10.1093/rheumatology/keaa272] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 04/24/2020] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES NF-κB regulates genes that control inflammation, cell proliferation, differentiation and survival. Dysregulated NF-κB signalling alters normal skin physiology and deletion of cRel limits bleomycin-induced skin fibrosis. This study investigates the role of cRel in modulating fibroblast phenotype in the context of SSc. METHODS Fibrosis was assessed histologically in mice challenged with bleomycin to induce lung or skin fibrosis. RNA sequencing and pathway analysis was performed on wild type and Rel-/- murine lung and dermal fibroblasts. Functional assays examined fibroblast proliferation, migration and matrix production. cRel overexpression was investigated in human dermal fibroblasts. cRel immunostaining was performed on lung and skin tissue sections from SSc patients and non-fibrotic controls. RESULTS cRel expression was elevated in murine lung and skin fibrosis models. Rel-/- mice were protected from developing pulmonary fibrosis. Soluble collagen production was significantly decreased in fibroblasts lacking cRel while proliferation and migration of these cells was significantly increased. cRel regulates genes involved in extracellular structure and matrix organization. Positive cRel staining was observed in fibroblasts in human SSc skin and lung tissue. Overexpression of constitutively active cRel in human dermal fibroblasts increased expression of matrix genes. An NF-κB gene signature was identified in diffuse SSc skin and nuclear cRel expression was elevated in SSc skin fibroblasts. CONCLUSION cRel regulates a pro-fibrogenic transcriptional programme in fibroblasts that may contribute to disease pathology. Targeting cRel signalling in fibroblasts of SSc patients could provide a novel therapeutic avenue to limit scar formation in this disease.
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Affiliation(s)
- Julie C Worrell
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne
| | - Jack Leslie
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne
| | - Graham R Smith
- Bioinformatics Support Unit, Newcastle University, Newcastle upon Tyne, UK
| | - Marco Y W Zaki
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne.,Biochemistry Department, Faculty of Pharmacy, Minia University, Egypt
| | - Hannah L Paish
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne
| | - Amber Knox
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne
| | - Michelle L James
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne
| | - Tyrell N Cartwright
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne
| | - Steven O'Reilly
- Department of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - Gabriela Kania
- Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland
| | - Oliver Distler
- Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland
| | - Jörg H W Distler
- Department of Internal Medicine III and Institute for Clinical Immunology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Ariane L Herrick
- Centre for Musculoskeletal Research, The University of Manchester, Salford Royal NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester
| | - Maria Jeziorska
- Division of Cardiovascular Sciences, University of Manchester, Manchester
| | - Lee A Borthwick
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne
| | - Andrew J Fisher
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne.,Institute of Transplantation, The Freeman Hospital, High Heaton, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Jelena Mann
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne
| | - Derek A Mann
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne
| | - Fiona Oakley
- Newcastle Fibrosis Research Group, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne
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13
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Alhendi FJ, Werth VP, Sollecito TP, Stoopler ET. Systemic sclerosis: Update for oral health care providers. SPECIAL CARE IN DENTISTRY 2021; 40:418-430. [PMID: 33448431 DOI: 10.1111/scd.12492] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/05/2020] [Accepted: 06/09/2020] [Indexed: 12/22/2022]
Abstract
Systemic sclerosis (SSc), also known as scleroderma, is an autoimmune disease of unknown origin characterized by an uncontrolled inflammatory process resulting in fibrosis of the skin, internal organs and vasculopathy. Manifestations of SSc are heterogenous and can include pulmonary, cardiac, neural, renal, muscular, cutaneous and orofacial complications. Recent scientific advances have led to a better understanding of disease etiopathogenesis and the development of a new classification system. Therapeutic management is often multidisciplinary and targeted toward the affected organs. Oral health care providers (OHCPs) should be familiar with SSc, particularly as it relates to its impact on the orofacial region and modifications to delivery of oral health care for patients with this condition.
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Affiliation(s)
- Fatmah J Alhendi
- Department of Oral Medicine, Penn Dental Medicine, Philadelphia, Pennsylvania
| | - Victoria P Werth
- Department of Dermatology, Philadelphia V.A. Hospital, Hospital of the University of Pennsylvania and the Veteran's Administration Medical Center, Philadelphia, Pennsylvania
| | - Thomas P Sollecito
- Department of Oral Medicine, Penn Dental Medicine, Philadelphia, Pennsylvania
| | - Eric T Stoopler
- Department of Oral Medicine, Penn Dental Medicine, Philadelphia, Pennsylvania
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14
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Bu FT, Zhu Y, Chen X, Wang A, Zhang YF, You HM, Yang Y, Yang YR, Huang C, Li J. Circular RNA circPSD3 alleviates hepatic fibrogenesis by regulating the miR-92b-3p/Smad7 axis. MOLECULAR THERAPY-NUCLEIC ACIDS 2021; 23:847-862. [PMID: 33614234 PMCID: PMC7868733 DOI: 10.1016/j.omtn.2021.01.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 01/10/2021] [Indexed: 12/12/2022]
Abstract
Recently, circular RNAs (circRNAs) have been frequently reported to be involved in hepatocellular carcinoma (HCC) development and progression. However, the role of circRNAs in hepatic fibrosis (HF) is still unclear. Our previous high-throughput screen revealed changes in many circRNAs in mice with carbon tetrachloride (CCl4)-induced HF. For instance, the expression of circPSD3, a circRNA derived from the Pleckstrin and Sec7 domain-containing 3 (PSD3) gene, was considerably downregulated in primary hepatic stellate cells (HSCs) and liver tissues of mice with CCl4-induced HF compared to those in the vehicle group. In vivo overexpression of circPSD3 using AAV8-circPSD3 arrested the deterioration of CCl4-induced HF as indicated by reduced serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) content, liver hydroxyproline level, collagen deposition, and pro-fibrogenic gene and pro-inflammatory cytokine levels. Moreover, in vitro loss-of-function and gain-of-function analyses suggested that circPSD3 inhibited the activation and proliferation of HSCs. Mechanistically, circPSD3 served as a sponge for miR-92b-3p, subsequently promoting the expression of Smad7. In conclusion, our present findings reveal a novel mechanism by which circPSD3 alleviates hepatic fibrogenesis by targeting the miR-92b-3p/Smad7 axis, and they also indicate that circPSD3 may serve as a potential biomarker for HF.
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Affiliation(s)
- Fang-Tian Bu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui Province 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei, China
| | - Yan Zhu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China.,The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China
| | - Xin Chen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui Province 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei, China
| | - Ao Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui Province 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei, China
| | - Ya-Fei Zhang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui Province 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei, China
| | - Hong-Mei You
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui Province 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei, China
| | - Yang Yang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui Province 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei, China
| | - Ya-Ru Yang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui Province 230032, China
| | - Cheng Huang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui Province 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei, China
| | - Jun Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui Province 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei, China
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15
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Mehta BK, Espinoza ME, Hinchcliff M, Whitfield ML. Molecular "omic" signatures in systemic sclerosis. Eur J Rheumatol 2020; 7:S173-S180. [PMID: 33164732 DOI: 10.5152/eurjrheum.2020.19192] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 03/05/2020] [Indexed: 01/15/2023] Open
Abstract
Systemic sclerosis (SSc) is a connective tissue disorder characterized by immunologic, vascular, and extracellular matrix abnormalities. Variation in the proportion and/or timing of activation in the deregulated molecular pathways that underlie SSc may explain the observed clinical heterogeneity in terms of disease phenotype and treatment response. In recent years, SSc research has generated massive amounts of "omics" level data. In this review, we discuss the body of "omics" level work in SSc and how each layer provides unique insight to our understanding of SSc. We posit that effective integration of genomic, transcriptomic, metagenomic, and epigenomic data is an important step toward precision medicine and is vital to the identification of effective therapeutic options for patients with SSc.
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Affiliation(s)
- Bhaven K Mehta
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Monica E Espinoza
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Monique Hinchcliff
- Department of Rheumatology, Allergy & Immunology, Yale School of Medicine, New Haven, CT, USA
| | - Michael L Whitfield
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, USA.,Department of Biomedical Data Science, Dartmouth College, Hanover, NH, USA
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16
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Pu W, Wu W, Liu Q, Ma Y, Tu W, Zuo X, Guo G, Jiang S, Zhao Y, Zuo X, Wang Q, Yang L, Xiao R, Chu H, Wang L, Sun L, Cui J, Yu L, Li H, Li Y, Shi Y, Zhang J, Zhang H, Liang M, Chen D, Ding Y, Chen X, Chen Y, Zhang R, Zhao H, Li Y, Qi Q, Bai P, Zhao L, Reveille JD, Mayes MD, Jin L, Lee EB, Zhang X, Xu J, Zhang Z, Zhou X, Zou H, Wang J. Exome-Wide Association Analysis Suggests LRP2BP as a Susceptibility Gene for Endothelial Injury in Systemic Sclerosis in the Han Chinese Population. J Invest Dermatol 2020; 141:1254-1263.e6. [PMID: 33069728 DOI: 10.1016/j.jid.2020.07.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 07/13/2020] [Accepted: 07/24/2020] [Indexed: 11/18/2022]
Abstract
Genetic factors play a key role in the pathogenesis of autoimmune diseases, whereas the disease-causing variants remain largely unknown. Herein, we performed an exome-wide association study of systemic sclerosis in a Han Chinese population. In the discovery stage, 527 patients with systemic sclerosis and 5,024 controls were recruited and genotyped. In the validation study, an independent sample set of 479 patients and 1,096 controls were examined. In total, we found that four independent signals reached genome-wide significance. Among them, rs7574865 (Pcombined = 3.87 × 10-12) located within signal transducer and activator of transcription 4 gene was identified previously using samples of European ancestry. Additionally, another signal including three SNPs in linkage disequilibrium might be unreported susceptibility loci located in the epidermis differentiation complex region. Furthermore, two SNPs located within exon 3 of IGHM (rs45471499, Pcombined = 1.15 × 10-9) and upstream of LRP2BP (rs4317244, Pcombined = 4.17 × 10-8) were found. Moreover, rs4317244 was identified as an expression quantitative trait locus for LRP2BP that regulates tight junctions, cell cycle, and apoptosis in endothelial cell lines. Collectively, our results revealed three signals associated with systemic sclerosis in Han Chinese and suggested the importance of LRP2BP in systemic sclerosis pathogenesis. Given the limited sample size and discrepancies between previous results and our study, further studies in multiethnic populations are required for verification.
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Affiliation(s)
- Weilin Pu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China; Human Phenome Institute, Fudan University, Shanghai, China
| | - Wenyu Wu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Qingmei Liu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yanyun Ma
- Human Phenome Institute, Fudan University, Shanghai, China; Six-sector Industrial Research Institute, Fudan University, Shanghai, China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China
| | - Wenzhen Tu
- Division of Rheumatology, Shanghai TCM-integrated Hospital, Shanghai, China
| | - Xianbo Zuo
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China
| | - Gang Guo
- Department of Rheumatology, Yiling Hospital, Shijiazhuang, China
| | - Shuai Jiang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China; Human Phenome Institute, Fudan University, Shanghai, China; Department of Rheumatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yinhuan Zhao
- Division of Rheumatology, Shanghai TCM-integrated Hospital, Shanghai, China
| | - Xiaoxia Zuo
- Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, China
| | - Qingwen Wang
- Rheumatology and Immunology Department, Peking University Shenzhen Hospital, Shenzhen, China
| | - Li Yang
- Department of Rheumatology, The Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Rong Xiao
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
| | - Haiyan Chu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Lei Wang
- Division of Rheumatology, Shanghai TCM-integrated Hospital, Shanghai, China
| | - Liangdan Sun
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China
| | - Jimin Cui
- Department of Rheumatology, Yiling Hospital, Shijiazhuang, China
| | - Ling Yu
- Division of Rheumatology, Shanghai TCM-integrated Hospital, Shanghai, China
| | - Huiyun Li
- Department of Rheumatology, Yiling Hospital, Shijiazhuang, China
| | - Yisha Li
- Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, China
| | - Yaqian Shi
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
| | - Jiaqian Zhang
- Division of Rheumatology, Shanghai TCM-integrated Hospital, Shanghai, China
| | - Haishun Zhang
- Department of Rheumatology, Yiling Hospital, Shijiazhuang, China
| | - Minrui Liang
- Department of Rheumatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Dongdong Chen
- Division of Rheumatology, Shanghai TCM-integrated Hospital, Shanghai, China
| | - Yue Ding
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Xiangxiang Chen
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Yuanyuan Chen
- Division of Rheumatology, Shanghai TCM-integrated Hospital, Shanghai, China
| | - Rui Zhang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Han Zhao
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Yuan Li
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Qing Qi
- Department of Dermatology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China; Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Peng Bai
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Liang Zhao
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - John D Reveille
- Division of Rheumatology and Clinical Immunogenetics, the University of Texas-McGovern Medical School, Houston, Texas, USA
| | - Maureen D Mayes
- Division of Rheumatology and Clinical Immunogenetics, the University of Texas-McGovern Medical School, Houston, Texas, USA
| | - Li Jin
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China; Human Phenome Institute, Fudan University, Shanghai, China; Research Unit of dissecting the population genetics and developing new technologies for treatment and prevention of skin phenotypes and dermatological diseases (2019RU058), Chinese Academy of Medical Sciences, Beijing, China
| | - Eun Bong Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Xuejun Zhang
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China
| | - Jinhua Xu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Zheng Zhang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaodong Zhou
- Division of Rheumatology and Clinical Immunogenetics, the University of Texas-McGovern Medical School, Houston, Texas, USA
| | - Hejian Zou
- Department of Rheumatology, Huashan Hospital, Fudan University, Shanghai, China; Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China
| | - Jiucun Wang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China; Human Phenome Institute, Fudan University, Shanghai, China; Research Unit of dissecting the population genetics and developing new technologies for treatment and prevention of skin phenotypes and dermatological diseases (2019RU058), Chinese Academy of Medical Sciences, Beijing, China; Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China.
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17
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Ishikawa Y, Terao C. Genetics of systemic sclerosis. JOURNAL OF SCLERODERMA AND RELATED DISORDERS 2020; 5:192-201. [PMID: 35382527 PMCID: PMC8922623 DOI: 10.1177/2397198320913695] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 02/23/2020] [Indexed: 01/05/2024]
Abstract
Systemic sclerosis is an autoimmune disease characterized by generalized fibrosis in connective tissues and internal organs as consequences of microvascular dysfunction and immune dysfunctions, which leads to premature death in affected individuals. The etiology of systemic sclerosis is complex and poorly understood, but as with most autoimmune diseases, it is widely accepted that both environmental and genetic factors contribute to disease risk. During the last decade, the number of genetic markers convincingly associated with systemic sclerosis has exponentially increased. In this article, we briefly mention the genetic components of systemic sclerosis. Then, we review the classical and novel genetic associations with systemic sclerosis, analyzing the firmest and replicated signals within non-human leukocyte antigen genes, identified by both candidate gene approach and genome-wide association studies. We also provide an insight into the future perspectives that will shed more light into the complex genetic background of the disease. Despite the remarkable advance of systemic sclerosis genetics during the last decade, the use of the new genetic technologies such as next-generation sequencing, as well as the deep phenotyping of the study cohorts, to fully characterize the genetic component of this disease is imperative to identify causal variants, which leads to more targeted and effective treatment of systemic sclerosis.
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Affiliation(s)
- Yuki Ishikawa
- Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
- Laboratory for Statistical and Translational Genetics, Center for Integrative Medical Sciences, RIKEN, Yokohama, Japan
| | - Chikashi Terao
- Laboratory for Statistical and Translational Genetics, Center for Integrative Medical Sciences, RIKEN, Yokohama, Japan
- Clinical Research Center, Shizuoka General Hospital, Shizuoka, Japan
- Department of Applied Genetics, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
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18
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Li T, Ortiz-Fernández L, Andrés-León E, Ciudad L, Javierre BM, López-Isac E, Guillén-Del-Castillo A, Simeón-Aznar CP, Ballestar E, Martin J. Epigenomics and transcriptomics of systemic sclerosis CD4+ T cells reveal long-range dysregulation of key inflammatory pathways mediated by disease-associated susceptibility loci. Genome Med 2020; 12:81. [PMID: 32977850 PMCID: PMC7519528 DOI: 10.1186/s13073-020-00779-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 09/08/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Systemic sclerosis (SSc) is a genetically complex autoimmune disease mediated by the interplay between genetic and epigenetic factors in a multitude of immune cells, with CD4+ T lymphocytes as one of the principle drivers of pathogenesis. METHODS DNA samples exacted from CD4+ T cells of 48 SSc patients and 16 healthy controls were hybridized on MethylationEPIC BeadChip array. In parallel, gene expression was interrogated by hybridizing total RNA on Clariom™ S array. Downstream bioinformatics analyses were performed to identify correlating differentially methylated CpG positions (DMPs) and differentially expressed genes (DEGs), which were then confirmed utilizing previously published promoter capture Hi-C (PCHi-C) data. RESULTS We identified 9112 and 3929 DMPs and DEGs, respectively. These DMPs and DEGs are enriched in functional categories related to inflammation and T cell biology. Furthermore, correlation analysis identified 17,500 possible DMP-DEG interaction pairs within a window of 5 Mb, and utilizing PCHi-C data, we observed that 212 CD4+ T cell-specific pairs of DMP-DEG also formed part of three-dimensional promoter-enhancer networks, potentially involving CTCF. Finally, combining PCHi-C data with SSc GWAS data, we identified four important SSc-associated susceptibility loci, TNIP1 (rs3792783), GSDMB (rs9303277), IL12RB1 (rs2305743), and CSK (rs1378942), that could potentially interact with DMP-DEG pairs cg17239269-ANXA6, cg19458020-CCR7, cg10808810-JUND, and cg11062629-ULK3, respectively. CONCLUSION Our study unveils a potential link between genetic, epigenetic, and transcriptional deregulation in CD4+ T cells of SSc patients, providing a novel integrated view of molecular components driving SSc pathogenesis.
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Affiliation(s)
- Tianlu Li
- Epigenetics and Immune Disease Group, Josep Carreras Research Institute (IJC), 08916, Badalona, Barcelona, Spain
| | - Lourdes Ortiz-Fernández
- Instituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas (IPBLN-CSIC), Granada, Spain
| | - Eduardo Andrés-León
- Instituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas (IPBLN-CSIC), Granada, Spain
| | - Laura Ciudad
- Epigenetics and Immune Disease Group, Josep Carreras Research Institute (IJC), 08916, Badalona, Barcelona, Spain
| | - Biola M Javierre
- 3D Chromatin Organization, Josep Carreras Research Institute (IJC), 08916, Badalona, Barcelona, Spain
| | - Elena López-Isac
- Instituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas (IPBLN-CSIC), Granada, Spain
| | - Alfredo Guillén-Del-Castillo
- Unit of Systemic Autoimmunity Diseases, Department of Internal Medicine, Vall d'Hebron Hospital, Barcelona, Spain
| | - Carmen Pilar Simeón-Aznar
- Unit of Systemic Autoimmunity Diseases, Department of Internal Medicine, Vall d'Hebron Hospital, Barcelona, Spain
| | - Esteban Ballestar
- Epigenetics and Immune Disease Group, Josep Carreras Research Institute (IJC), 08916, Badalona, Barcelona, Spain.
| | - Javier Martin
- Instituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas (IPBLN-CSIC), Granada, Spain.
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19
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Gupta M, Yamauchi PS, Bagot M, Szepietowski J, Bhatia S, Lotti T, Goldust M. Uncommon presentation of morphea related to interferon beta in a patient with concomitant multiple sclerosis and chronic hepatitis C: A case report. Clin Case Rep 2020; 8:1647-1650. [PMID: 32983469 PMCID: PMC7495805 DOI: 10.1002/ccr3.2971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 04/26/2020] [Accepted: 05/03/2020] [Indexed: 11/24/2022] Open
Abstract
Recombinant interferon beta-1b is one of the treatment options of multiple sclerosis (MS). Insertional biologics that are used in the treatment of MS may lead to skin adverse effects, for example, morphea.
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Affiliation(s)
| | - Paul S. Yamauchi
- Dermatology Institute and Skin Care CenterSanta MonicaCaliforniaUSA
- Division of DermatologyDavid Geffen School of Medicine at University of CaliforniaLos AngelesCaliforniaUSA
| | - Martine Bagot
- AP‐HP Dermatology DepartmentSaint‐Louis HospitalINSERM U976Université Paris Diderot‐Paris VIISorbonne Paris CitéParisFrance
| | - Jacek Szepietowski
- Department of Dermatology, Venereology and AllergologyWroclaw Medical UniversityWroclawPoland
| | - Shibani Bhatia
- Department of Dermatology, Venereology and LeprosyKasturba medical collegeManipal Manipal Academy of Higher EducationManipalIndia
| | | | - Mohamad Goldust
- Mazandaran University of Medical SciencesSariIran
- University of Rome G. MarconiRomeItaly
- Department of DermatologyUniversity Medical Center MainzMainzGermany
- Department of DermatologyUniversity Hospital BaselBaselSwitzerland
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20
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Grace C, Farrall M, Watkins H, Goel A. Manhattan++: displaying genome-wide association summary statistics with multiple annotation layers. BMC Bioinformatics 2019; 20:610. [PMID: 31775616 PMCID: PMC6882345 DOI: 10.1186/s12859-019-3201-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 11/08/2019] [Indexed: 11/18/2022] Open
Abstract
Background Over the last 10 years, there have been over 3300 genome-wide association studies (GWAS). Almost every GWAS study provides a Manhattan plot either as a main figure or in the supplement. Several software packages can generate a Manhattan plot, but they are all limited in the extent to which they can annotate gene-names, allele frequencies, and variants having high impact on gene function or provide any other added information or flexibility. Furthermore, in a conventional Manhattan plot, there is no way of distinguishing a locus identified due to a single variant with very significant p-value from a locus with multiple variants which appear to be in a haplotype block having very similar p-values. Results Here we present a software tool written in R, which generates a transposed Manhattan plot along with additional features like variant consequence and minor allele frequency to annotate the plot and addresses these limitations. The software also gives flexibility on how and where the user wants to display the annotations. The software can be downloaded from CRAN repository and also from the GitHub project page. Conclusions We present a major step up to the existing conventional Manhattan plot generation tools. We hope this form of display along with the added annotations will bring more insight to the reader from this new Manhattan++ plot.
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Affiliation(s)
- Christopher Grace
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK.,Wellcome Centre for Human Genetics, University of Oxford, Oxford, OX3 7BN, UK
| | - Martin Farrall
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK.,Wellcome Centre for Human Genetics, University of Oxford, Oxford, OX3 7BN, UK
| | - Hugh Watkins
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK.,Wellcome Centre for Human Genetics, University of Oxford, Oxford, OX3 7BN, UK
| | - Anuj Goel
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK. .,Wellcome Centre for Human Genetics, University of Oxford, Oxford, OX3 7BN, UK.
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21
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Abstract
Systemic sclerosis (SSc) is a severe autoimmune disease that is characterized by vascular abnormalities, immunological alterations and fibrosis of the skin and internal organs. The results of genetic studies in patients with SSc have revealed statistically significant genetic associations with disease manifestations and progression. Nevertheless, genetic susceptibility to SSc is moderate, and the functional consequences of genetic associations remain only partially characterized. A current hypothesis is that, in genetically susceptible individuals, epigenetic modifications constitute the driving force for disease initiation. As epigenetic alterations can occur years before fibrosis appears, these changes could represent a potential link between inflammation and tissue fibrosis. Epigenetics is a fast-growing discipline, and a considerable number of important epigenetic studies in SSc have been published in the past few years that span histone post-translational modifications, DNA methylation, microRNAs and long non-coding RNAs. This Review describes the latest insights into genetic and epigenetic contributions to the pathogenesis of SSc and aims to provide an improved understanding of the molecular pathways that link inflammation and fibrosis. This knowledge will be of paramount importance for the development of medicines that are effective in treating or even reversing tissue fibrosis.
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22
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Towards a Better Classification and Novel Therapies Based on the Genetics of Systemic Sclerosis. Curr Rheumatol Rep 2019; 21:44. [PMID: 31304568 DOI: 10.1007/s11926-019-0845-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE OF THE REVIEW Nowadays, important advances have occurred in our understanding of the pathogenesis of systemic sclerosis (SSc), which is a rare immune-mediated inflammatory disease (IMID) characterized by vascular damage, immune imbalance, and fibrosis. Its etiology remains unknown; nevertheless, both environmental and genetic factors play a major role in the disease. This review will focus on the main advances made in the field of genetics of SSc. RECENT FINDINGS The assessment of how interindividual genetic variability affects disease onset and progression has enhanced our knowledge of disease biology, and this will eventually translate in the development of new diagnostic and therapeutic tools, which is the final goal of personalized medicine. We will provide an overview of the most relevant achievements in the genetics of SSc, its shared genetics among IMIDs with special attention on drug repurposing, current challenges for the functional characterization of risk variants, and future directions.
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23
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van der Kroef M, Castellucci M, Mokry M, Cossu M, Garonzi M, Bossini-Castillo LM, Chouri E, Wichers CGK, Beretta L, Trombetta E, Silva-Cardoso S, Vazirpanah N, Carvalheiro T, Angiolilli C, Bekker CPJ, Affandi AJ, Reedquist KA, Bonte-Mineur F, Zirkzee EJM, Bazzoni F, Radstake TRDJ, Rossato M. Histone modifications underlie monocyte dysregulation in patients with systemic sclerosis, underlining the treatment potential of epigenetic targeting. Ann Rheum Dis 2019; 78:529-538. [PMID: 30793699 DOI: 10.1136/annrheumdis-2018-214295] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 12/24/2018] [Accepted: 01/02/2019] [Indexed: 01/23/2023]
Abstract
BACKGROUND AND OBJECTIVE Systemic sclerosis (SSc) is a severe autoimmune disease, in which the pathogenesis is dependent on both genetic and epigenetic factors. Altered gene expression in SSc monocytes, particularly of interferon (IFN)-responsive genes, suggests their involvement in SSc development. We investigated the correlation between epigenetic histone marks and gene expression in SSc monocytes. METHODS Chromatin immunoprecipitation followed by sequencing (ChIPseq) for histone marks H3K4me3 and H3K27ac was performed on monocytes of nine healthy controls and 14 patients with SSc. RNA sequencing was performed in parallel to identify aberrantly expressed genes and their correlation with the levels of H3K4me3 and H3K27ac located nearby their transcription start sites. ChIP-qPCR assays were used to verify the role of bromodomain proteins, H3K27ac and STATs on IFN-responsive gene expression. RESULTS 1046 and 534 genomic loci showed aberrant H3K4me3 and H3K27ac marks, respectively, in SSc monocytes. The expression of 381 genes was directly and significantly proportional to the levels of such chromatin marks present near their transcription start site. Genes correlated to altered histone marks were enriched for immune, IFN and antiviral pathways and presented with recurrent binding sites for IRF and STAT transcription factors at their promoters. IFNα induced the binding of STAT1 and STAT2 at the promoter of two of these genes, while blocking acetylation readers using the bromodomain BET family inhibitor JQ1 suppressed their expression. CONCLUSION SSc monocytes have altered chromatin marks correlating with their IFN signature. Enzymes modulating these reversible marks may provide interesting therapeutic targets to restore monocyte homeostasis to treat or even prevent SSc.
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Affiliation(s)
- Maarten van der Kroef
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Monica Castellucci
- Division of General Pathology, Department of Medicine, University of Verona, Verona, Italy
| | - Michal Mokry
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Pediatric Gastroenterology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Marta Cossu
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Marianna Garonzi
- Department of Biotechnology, University of Verona, Verona, Italy
| | - Lara M Bossini-Castillo
- Consejo Superior de Investigaciones Científicas (IPBLN-CSIC), Instituto de Parasitología y Biomedicina López-Neyra, PTS Granada, Granada, Spain.,Department of cellular genetics, Wellcome Trust Sanger Institute, Cambridge, UK
| | - Eleni Chouri
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Catharina G K Wichers
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Lorenzo Beretta
- Referral Center for Systemic Autoimmune Diseases, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Elena Trombetta
- Flow Cytometry Service, Analysis Laboratory, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Sandra Silva-Cardoso
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Nadia Vazirpanah
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Tiago Carvalheiro
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Chiara Angiolilli
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Cornelis P J Bekker
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Alsya J Affandi
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Kris A Reedquist
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Femke Bonte-Mineur
- Department of Rheumatology and Clinical Immunology, Maasstad Hospital, Rotterdam, The Netherlands
| | - Els J M Zirkzee
- Department of Rheumatology and Clinical Immunology, Maasstad Hospital, Rotterdam, The Netherlands
| | - Flavia Bazzoni
- Division of General Pathology, Department of Medicine, University of Verona, Verona, Italy
| | - Timothy R D J Radstake
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands .,Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Marzia Rossato
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Biotechnology, University of Verona, Verona, Italy
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24
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González-Serna D, López-Isac E, Yilmaz N, Gharibdoost F, Jamshidi A, Kavosi H, Poursani S, Farsad F, Direskeneli H, Saruhan-Direskeneli G, Vargas S, Sawalha AH, Brown MA, Yavuz S, Mahmoudi M, Martin J. Analysis of the genetic component of systemic sclerosis in Iranian and Turkish populations through a genome-wide association study. Rheumatology (Oxford) 2019; 58:289-298. [PMID: 30247649 DOI: 10.1093/rheumatology/key281] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Indexed: 12/13/2022] Open
Abstract
Objectives SSc is an autoimmune disease characterized by alteration of the immune response, vasculopathy and fibrosis. Most genetic studies on SSc have been performed in European-ancestry populations. The aim of this study was to analyse the genetic component of SSc in Middle Eastern patients from Iran and Turkey through a genome-wide association study. Methods This study analysed data from a total of 834 patients diagnosed with SSc and 1455 healthy controls from Iran and Turkey. DNA was genotyped using high-throughput genotyping platforms. The data generated were imputed using the Michigan Imputation Server, and the Haplotype Reference Consortium as a reference panel. A meta-analysis combining both case-control sets was conducted by the inverse variance method. Results The highest peak of association belonged to the HLA region in both the Iranian and Turkish populations. Strong and independent associations between the classical alleles HLA-DRB1*11: 04 [P = 2.10 × 10-24, odds ratio (OR) = 3.14] and DPB1*13: 01 (P = 5.37 × 10-14, OR = 5.75) and SSc were observed in the Iranian population. HLA-DRB1*11: 04 (P = 4.90 × 10-11, OR = 2.93) was the only independent signal associated in the Turkish cohort. An omnibus test yielded HLA-DRB1 58 and HLA-DPB1 76 as relevant amino acid positions for this disease. Concerning the meta-analysis, we also identified two associations close to the genome-wide significance level outside the HLA region, corresponding to IRF5-TNPO3 rs17424921-C (P = 1.34 × 10-7, OR = 1.68) and NFKB1 rs4648133-C (P = 3.11 × 10-7, OR = 1.47). Conclusion We identified significant associations in the HLA region and suggestive associations in IRF5-TNPO3 and NFKB1 loci in Iranian and Turkish patients affected by SSc through a genome-wide association study and an extensive HLA analysis.
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Affiliation(s)
- David González-Serna
- Cell Biology and Immunology Department, Institute of Parasitology and Biomedicine López-Neyra, Consejo Superior de Investigaciones Científicas, Granada, Spain
| | - Elena López-Isac
- Cell Biology and Immunology Department, Institute of Parasitology and Biomedicine López-Neyra, Consejo Superior de Investigaciones Científicas, Granada, Spain
| | - Neslihan Yilmaz
- Department of Rheumatology, Istanbul Bilim University, Istanbul, Turkey
| | - Farhad Gharibdoost
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmadreza Jamshidi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hoda Kavosi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Shiva Poursani
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Faraneh Farsad
- Department of Rheumatology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | | | - Sofia Vargas
- Cell Biology and Immunology Department, Institute of Parasitology and Biomedicine López-Neyra, Consejo Superior de Investigaciones Científicas, Granada, Spain
| | - Amr H Sawalha
- Division of Rheumatology, Department of Internal Medicine, Ann Arbor MI, USA
- Department of Computational Medicine and Bioinformatics, The Center for Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor MI, USA
| | - Matthew A Brown
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Translational Research Institute, Princess Alexandra Hospital, Queensland, Australia
| | - Sule Yavuz
- Department of Rheumatology, Istanbul Bilim University, Istanbul, Turkey
| | - Mahdi Mahmoudi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Javier Martin
- Cell Biology and Immunology Department, Institute of Parasitology and Biomedicine López-Neyra, Consejo Superior de Investigaciones Científicas, Granada, Spain
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25
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Márquez A, Kerick M, Zhernakova A, Gutierrez-Achury J, Chen WM, Onengut-Gumuscu S, González-Álvaro I, Rodriguez-Rodriguez L, Rios-Fernández R, González-Gay MA, Mayes MD, Raychaudhuri S, Rich SS, Wijmenga C, Martín J. Meta-analysis of Immunochip data of four autoimmune diseases reveals novel single-disease and cross-phenotype associations. Genome Med 2018; 10:97. [PMID: 30572963 PMCID: PMC6302306 DOI: 10.1186/s13073-018-0604-8] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 11/22/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND In recent years, research has consistently proven the occurrence of genetic overlap across autoimmune diseases, which supports the existence of common pathogenic mechanisms in autoimmunity. The objective of this study was to further investigate this shared genetic component. METHODS For this purpose, we performed a cross-disease meta-analysis of Immunochip data from 37,159 patients diagnosed with a seropositive autoimmune disease (11,489 celiac disease (CeD), 15,523 rheumatoid arthritis (RA), 3477 systemic sclerosis (SSc), and 6670 type 1 diabetes (T1D)) and 22,308 healthy controls of European origin using the R package ASSET. RESULTS We identified 38 risk variants shared by at least two of the conditions analyzed, five of which represent new pleiotropic loci in autoimmunity. We also identified six novel genome-wide associations for the diseases studied. Cell-specific functional annotations and biological pathway enrichment analyses suggested that pleiotropic variants may act by deregulating gene expression in different subsets of T cells, especially Th17 and regulatory T cells. Finally, drug repositioning analysis evidenced several drugs that could represent promising candidates for CeD, RA, SSc, and T1D treatment. CONCLUSIONS In this study, we have been able to advance in the knowledge of the genetic overlap existing in autoimmunity, thus shedding light on common molecular mechanisms of disease and suggesting novel drug targets that could be explored for the treatment of the autoimmune diseases studied.
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Affiliation(s)
- Ana Márquez
- Instituto de Parasitología y Biomedicina “López-Neyra”, CSIC, PTS Granada, Granada, Spain
- Systemic Autoimmune Disease Unit, Instituto de Investigación Biosanitaria de Granada, Granada, Spain
| | - Martin Kerick
- Instituto de Parasitología y Biomedicina “López-Neyra”, CSIC, PTS Granada, Granada, Spain
| | - Alexandra Zhernakova
- Department of Genetics, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | | | - Wei-Min Chen
- Center for Public Health Genomics, University of Virginia, Charlottesville, VA USA
| | - Suna Onengut-Gumuscu
- Center for Public Health Genomics, University of Virginia, Charlottesville, VA USA
| | | | | | - Raquel Rios-Fernández
- Systemic Autoimmune Diseases Unit, Complejo Hospitalario de Granada, Hospital Campus de la Salud, Granada, Spain
| | - Miguel A. González-Gay
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, IDIVAL, Santander, Spain
| | - Maureen D. Mayes
- Division of Rheumatology and Clinical Immunogenetics, The University of Texas Health Science Center-Houston, Houston, USA
| | - Soumya Raychaudhuri
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA USA
- Division of Genetics, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA USA
| | - Stephen S. Rich
- Center for Public Health Genomics, University of Virginia, Charlottesville, VA USA
| | - Cisca Wijmenga
- Department of Genetics, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - Javier Martín
- Instituto de Parasitología y Biomedicina “López-Neyra”, CSIC, PTS Granada, Granada, Spain
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26
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Shamilov R, Aneskievich BJ. TNIP1 in Autoimmune Diseases: Regulation of Toll-like Receptor Signaling. J Immunol Res 2018; 2018:3491269. [PMID: 30402506 PMCID: PMC6192141 DOI: 10.1155/2018/3491269] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 09/17/2018] [Indexed: 02/08/2023] Open
Abstract
TNIP1 protein is increasingly being recognized as a key repressor of inflammatory signaling and a potential factor in multiple autoimmune diseases. In addition to earlier foundational reports of TNIP1 SNPs in human autoimmune diseases and TNIP1 protein-protein interaction with receptor regulating proteins, more recent studies have identified new potential interaction partners and signaling pathways likely modulated by TNIP1. Subdomains within the TNIP1 protein as well as how they interact with ubiquitin have not only been mapped but inflammatory cell- and tissue-specific consequences subsequent to their defective function are being recognized and related to human disease states such as lupus, scleroderma, and psoriasis. In this review, we emphasize receptor signaling complexes and regulation of cytoplasmic signaling steps downstream of TLR given their association with some of the same autoimmune diseases where TNIP1 has been implicated. TNIP1 dysfunction or deficiency may predispose healthy cells to the inflammatory response to otherwise innocuous TLR ligand exposure. The recognition of the anti-inflammatory roles of TNIP1 and improved integrated understanding of its physical and functional association with other signaling pathway proteins may position TNIP1 as a candidate target for the design and/or testing of next-generation anti-inflammatory therapeutics.
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Affiliation(s)
- Rambon Shamilov
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269-3092, USA
- Graduate Program in Pharmacology & Toxicology, University of Connecticut, Storrs, CT 06269-3092, USA
| | - Brian J. Aneskievich
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269-3092, USA
- Stem Cell Institute, University of Connecticut, Storrs, CT 06269-3092, USA
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27
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Rezaei R, Aslani S, Dashti N, Jamshidi A, Gharibdoost F, Mahmoudi M. Genetic implications in the pathogenesis of systemic sclerosis. Int J Rheum Dis 2018; 21:1478-1486. [DOI: 10.1111/1756-185x.13344] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ramazan Rezaei
- Rheumatology Research Center Tehran University of Medical Sciences Tehran Iran
- Department of Immunology School of Medicine Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Saeed Aslani
- Rheumatology Research Center Tehran University of Medical Sciences Tehran Iran
| | - Navid Dashti
- Rheumatology Research Center Tehran University of Medical Sciences Tehran Iran
- Department of Immunology School of Medicine Tehran University of Medical Sciences Tehran Iran
| | - Ahmadreza Jamshidi
- Rheumatology Research Center Tehran University of Medical Sciences Tehran Iran
| | - Farhad Gharibdoost
- Rheumatology Research Center Tehran University of Medical Sciences Tehran Iran
| | - Mahdi Mahmoudi
- Rheumatology Research Center Tehran University of Medical Sciences Tehran Iran
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28
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López-Mejías R, Castañeda S, Genre F, Remuzgo-Martínez S, Carmona FD, Llorca J, Blanco R, Martín J, González-Gay MA. Genetics of immunoglobulin-A vasculitis (Henoch-Schönlein purpura): An updated review. Autoimmun Rev 2018; 17:301-315. [DOI: 10.1016/j.autrev.2017.11.024] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 11/16/2017] [Indexed: 12/12/2022]
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Genome-Wide DNA Methylation Analysis in Systemic Sclerosis Reveals Hypomethylation of IFN-Associated Genes in CD4 + and CD8 + T Cells. J Invest Dermatol 2017; 138:1069-1077. [PMID: 29248544 DOI: 10.1016/j.jid.2017.12.003] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 12/05/2017] [Accepted: 12/05/2017] [Indexed: 01/03/2023]
Abstract
Epigenetic modifications, including DNA methylation, play an important role in the pathogenesis of autoimmune diseases. In this study, we characterized the DNA methylome in primary T cells of patients with systemic sclerosis. Genome-wide DNA methylation assays of CD4+ and CD8+ T cells from 24 systemic sclerosis patients and 24 matched controls were conducted and differentially methylated regions were validated. In the discovery stage, we found that hypomethylation of genes involved in the type I IFN signaling pathway was significantly enriched in both CD4+ (P = 7.59 × 10-6) and CD8+ (P = 2.10 × 10-8) differentially methylated regions. In the validation stage, we confirmed these changes for five type I IFN-associated genes. In addition, protein levels of both type I IFN-α (P < 0.0001) and β (P = 0.002) were significantly elevated in the sera of systemic sclerosis patients. Moreover, significant associations between type I IFN-α/β protein levels with the DNA methylation status as well as the expression profiles of these IFN-associated genes were confirmed. In conclusion, the type I IFN pathway is dysfunctional at the epigenetic level in systemic sclerosis patients, indicating that hypomethylation and upregulation of type I IFN-associated genes might be critical in systemic sclerosis pathogenesis.
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30
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Atzeni F, Gerardi MC, Barilaro G, Masala IF, Benucci M, Sarzi-Puttini P. Interstitial lung disease in systemic autoimmune rheumatic diseases: a comprehensive review. Expert Rev Clin Immunol 2017; 14:69-82. [DOI: 10.1080/1744666x.2018.1411190] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Fabiola Atzeni
- Maurizio Benucci, Rheumatology Unit, San Giovanni Di Dio Hospital, Florence, Italy
| | - Maria Chiara Gerardi
- Rheumatology Unit, Department of Internal Medicine, ASST-Fatebenefratelli L. Sacco University Hospital, Milan, Italy
| | | | | | - Maurizio Benucci
- Rheumatology Unit, Department of Internal Medicine, ASST-Fatebenefratelli L. Sacco University Hospital, Milan, Italy
| | - Piercarlo Sarzi-Puttini
- Rheumatology Unit, Department of Internal Medicine, ASST-Fatebenefratelli L. Sacco University Hospital, Milan, Italy
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31
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McCoy SS, Reed TJ, Berthier CC, Tsou PS, Liu J, Gudjonsson JE, Khanna D, Kahlenberg JM. Scleroderma keratinocytes promote fibroblast activation independent of transforming growth factor beta. Rheumatology (Oxford) 2017; 56:1970-1981. [PMID: 28968684 DOI: 10.1093/rheumatology/kex280] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Indexed: 01/06/2023] Open
Abstract
Objectives SSc is a devastating disease that results in fibrosis of the skin and other organs. Fibroblasts are a key driver of the fibrotic process through deposition of extracellular matrix. The mechanisms by which fibroblasts are induced to become pro-fibrotic remain unclear. Thus, we examined the ability of SSc keratinocytes to promote fibroblast activation and the source of this effect. Methods Keratinocytes were isolated from skin biopsies of 9 lcSSc, 10 dcSSc and 13 control patients. Conditioned media was saved from the cultures. Normal fresh primary fibroblasts were exposed to healthy control and SSc keratinocyte conditioned media in the presence or absence of neutralizing antibodies for TGF-β. Gene expression was assessed by microarrays and real-time PCR. Immunocytochemistry was performed for α-smooth muscle actin (α-SMA), collagen type 1 (COL1A1) and CCL5 expression. Results SSc keratinocyte conditioned media promoted fibroblast activation, characterized by increased α-SMA and COL1A1 mRNA and protein expression. This effect was independent of TGF-β. Microarray analysis identified upregulation of nuclear factor κB (NF-κB) and downregulation of peroxisome proliferator-activated receptor γ (PPAR-γ) pathways in both SSc subtypes. Scleroderma keratinocytes exhibited increased expression of NF-κB-regulated cytokines and chemokines and lesional skin staining confirmed upregulation of CCL5 in basal keratinocytes. Conclusion Scleroderma keratinocytes promote the activation of fibroblasts in a TGF-β-independent manner and demonstrate an imbalance in NF-κB1 and PPAR-γ expression leading to increased cytokine and CCL5 production. Further study of keratinocyte mediators of fibrosis, including CCL5, may provide novel targets for skin fibrosis therapy.
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Affiliation(s)
- Sara S McCoy
- Department of Internal Medicine, Division of Rheumatology, University of Wisconsin, Madison, WI
| | - Tamra J Reed
- Department of Internal Medicine, Division of Rheumatology
| | | | - Pei-Suen Tsou
- Department of Internal Medicine, Division of Rheumatology
| | - Jianhua Liu
- Department of Internal Medicine, Division of Rheumatology
| | | | - Dinesh Khanna
- Department of Internal Medicine, Division of Rheumatology
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32
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Protein tyrosine phosphatase non-receptor 22 and C-Src tyrosine kinase genes are down-regulated in patients with rheumatoid arthritis. Sci Rep 2017; 7:10525. [PMID: 28874816 PMCID: PMC5585411 DOI: 10.1038/s41598-017-10915-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 08/16/2017] [Indexed: 01/02/2023] Open
Abstract
Several protein tyrosine phosphatase non-receptor 22 (PTPN22) single-nucleotide polymorphisms (SNPs) have been significantly related with rheumatoid arthritis (RA) susceptibility. Nevertheless, its potential influence on PTPN22 expression in RA has not been completely elucidated. Furthermore, PTPN22 binds to C-Src tyrosine kinase (CSK) forming a key complex in autoimmunity. However, the information of CSK gene in RA is scarce. In this study, we analyzed the relative PTPN22 and CSK expression in peripheral blood from 89 RA patients and 43 controls to determine if the most relevant PTPN22 (rs2488457, rs2476601 and rs33996649) and CSK (rs34933034 and rs1378942) polymorphisms may influence on PTPN22 and CSK expression in RA. The association between PTPN22 and CSK expression in RA patients and their clinical characteristics was also evaluated. Our study shows for the first time a marked down-regulation of PTPN22 expression in RA patients carrying the risk alleles of PTPN22 rs2488457 and rs2476601 compared to controls (p = 0.004 and p = 0.007, respectively). Furthermore, CSK expression was significantly lower in RA patients than in controls (p < 0.0001). Interestingly, a reduced PTPN22 expression was disclosed in RA patients with ischemic heart disease (p = 0.009). The transcriptional suppression of this PTPN22/CSK complex may have a noteworthy clinical relevance in RA patients.
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López-Isac E, Martín JE, Assassi S, Simeón CP, Carreira P, Ortego-Centeno N, Freire M, Beltrán E, Narváez J, Alegre-Sancho JJ, Fernández-Gutiérrez B, Balsa A, Ortiz AM, González-Gay MA, Beretta L, Santaniello A, Bellocchi C, Lunardi C, Moroncini G, Gabrielli A, Witte T, Hunzelmann N, Distler JHW, Riekemasten G, van der Helm-van Mil AH, de Vries-Bouwstra J, Magro-Checa C, Voskuyl AE, Vonk MC, Molberg Ø, Merriman T, Hesselstrand R, Nordin A, Padyukov L, Herrick A, Eyre S, Koeleman BPC, Denton CP, Fonseca C, Radstake TRDJ, Worthington J, Mayes MD, Martín J. Brief Report: IRF4 Newly Identified as a Common Susceptibility Locus for Systemic Sclerosis and Rheumatoid Arthritis in a Cross-Disease Meta-Analysis of Genome-Wide Association Studies. Arthritis Rheumatol 2017; 68:2338-44. [PMID: 27111665 DOI: 10.1002/art.39730] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 04/19/2016] [Indexed: 01/21/2023]
Abstract
OBJECTIVE Systemic sclerosis (SSc) and rheumatoid arthritis (RA) are autoimmune diseases that have similar clinical and immunologic characteristics. To date, several shared SSc-RA genetic loci have been identified independently. The aim of the current study was to systematically search for new common SSc-RA loci through an interdisease meta-genome-wide association (meta-GWAS) strategy. METHODS The study was designed as a meta-analysis combining GWAS data sets of patients with SSc and patients with RA, using a strategy that allowed identification of loci with both same-direction and opposite-direction allelic effects. The top single-nucleotide polymorphisms were followed up in independent SSc and RA case-control cohorts. This allowed an increase in the sample size to a total of 8,830 patients with SSc, 16,870 patients with RA, and 43,393 healthy controls. RESULTS This cross-disease meta-analysis of the GWAS data sets identified several loci with nominal association signals (P < 5 × 10(-6) ) that also showed evidence of association in the disease-specific GWAS scans. These loci included several genomic regions not previously reported as shared loci, as well as several risk factors that were previously found to be associated with both diseases. Follow-up analyses of the putatively new SSc-RA loci identified IRF4 as a shared risk factor for these 2 diseases (Pcombined = 3.29 × 10(-12) ). Analysis of the biologic relevance of the known SSc-RA shared loci identified the type I interferon and interleukin-12 signaling pathways as the main common etiologic factors. CONCLUSION This study identified a novel shared locus, IRF4, for the risk of SSc and RA, and highlighted the usefulness of a cross-disease GWAS meta-analysis strategy in the identification of common risk loci.
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Affiliation(s)
- Elena López-Isac
- Institute of Parasitology and Biomedicine López-Neyra CSIC, Granada, Spain
| | | | | | | | | | | | - Mayka Freire
- Complexo Hospitalario Universitario de Vigo, Vigo, Spain
| | - Emma Beltrán
- Hospital General Universitario de Valencia, Valencia, Spain
| | | | | | | | | | - Alejandro Balsa
- Hospital Universitario La Paz, Instituto de Investigación Sanitaria La Paz, Madrid, Spain
| | - Ana M Ortiz
- Hospital Universitario La Princesa, Instituto de Investigación Sanitaria La Princesa, Madrid, Spain
| | | | - Lorenzo Beretta
- Referral Center for Systemic Autoimmune Diseases, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Alessandro Santaniello
- Referral Center for Systemic Autoimmune Diseases, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Chiara Bellocchi
- Referral Center for Systemic Autoimmune Diseases, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | | | | | - Armando Gabrielli
- Università Politecnica delle Marche and Ospedali Riuniti, Ancona, Italy
| | | | | | | | | | | | | | | | | | - Madelon C Vonk
- Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Øyvind Molberg
- Oslo University Hospital Rikshospitalet and Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | | | | | - Annika Nordin
- Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Leonid Padyukov
- Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Ariane Herrick
- University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Steve Eyre
- University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | | | - Christopher P Denton
- Centre for Rheumatology, Royal Free and University College Medical School, London, UK
| | - Carmen Fonseca
- Centre for Rheumatology, Royal Free and University College Medical School, London, UK
| | - Timothy R D J Radstake
- University Medical Center Utrecht, Utrecht, The Netherlands. Members of the Spanish Scleroderma Group are shown in Appendix A
| | - Jane Worthington
- University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | | | - Javier Martín
- Institute of Parasitology and Biomedicine López-Neyra CSIC, Granada, Spain
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Tsou PS, Sawalha AH. Unfolding the pathogenesis of scleroderma through genomics and epigenomics. J Autoimmun 2017; 83:73-94. [PMID: 28526340 DOI: 10.1016/j.jaut.2017.05.004] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 05/09/2017] [Indexed: 12/12/2022]
Abstract
With unknown etiology, scleroderma (SSc) is a multifaceted disease characterized by immune activation, vascular complications, and excessive fibrosis in internal organs. Genetic studies, including candidate gene association studies, genome-wide association studies, and whole-exome sequencing have supported the notion that while genetic susceptibility to SSc appears to be modest, SSc patients are genetically predisposed to this disease. The strongest genetic association for SSc lies within the MHC region, with loci in HLA-DRB1, HLA-DQB1, HLA-DPB1, and HLA-DOA1 being the most replicated. The non-HLA genes associated with SSc are involved in various functions, with the most robust associations including genes for B and T cell activation and innate immunity. Other pathways include genes involved in extracellular matrix deposition, cytokines, and autophagy. Among these genes, IRF5, STAT4, and CD247 were replicated most frequently while SNPs rs35677470 in DNASE1L3, rs5029939 in TNFAIP3, and rs7574685 in STAT4 have the strongest associations with SSc. In addition to genetic predisposition, it became clear that environmental factors and epigenetic influences also contribute to the development of SSc. Epigenetics, which refers to studies that focus on heritable phenotypes resulting from changes in chromatin structure without affecting the DNA sequence, is one of the most rapidly expanding fields in biomedical research. Indeed extensive epigenetic changes have been described in SSc. Alteration in enzymes and mediators involved in DNA methylation and histone modification, as well as dysregulated non-coding RNA levels all contribute to fibrosis, immune dysregulation, and impaired angiogenesis in this disease. Genes that are affected by epigenetic dysregulation include ones involved in autoimmunity, T cell function and regulation, TGFβ pathway, Wnt pathway, extracellular matrix, and transcription factors governing fibrosis and angiogenesis. In this review, we provide a comprehensive overview of the current findings of SSc genetic susceptibility, followed by an extensive description and a systematic review of epigenetic research that has been carried out to date in SSc. We also summarize the therapeutic potential of drugs that affect epigenetic mechanisms, and outline the future prospective of genomics and epigenomics research in SSc.
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Affiliation(s)
- Pei-Suen Tsou
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Amr H Sawalha
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA; Center for Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, USA.
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Gong S, Xu C, Wang L, Liu Y, Owusu D, Bailey BA, Li Y, Wang K. Genetic association analysis of polymorphisms in PSD3 gene with obesity, type 2 diabetes, and HDL cholesterol. Diabetes Res Clin Pract 2017; 126:105-114. [PMID: 28237857 DOI: 10.1016/j.diabres.2017.02.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 02/02/2017] [Indexed: 01/29/2023]
Abstract
BACKGROUND The pleckstrin and Sec7 domain-containing 3 (PSD3) gene has been linked to immune diseases. We examined whether the genetic variants within the PSD3 gene are associated with obesity, type 2 diabetes (T2D), and high-density lipoprotein (HDL) cholesterol level. METHODS Multiple logistic regression model and linear regression model were used to examine the associations of 259 single nucleotide polymorphisms (SNPs) within the PSD3 gene with obesity and T2D as binary traits, and HDL level as a continuous trait using the Marshfield data, respectively. A replication study of obesity was conducted using the Health Aging and Body Composition (Health ABC) sample. RESULTS 23SNPs were associated with obesity (p<0.05) in the Marshfield sample and rs4921966 revealed the strongest association (p=3.97×10-6). Of the 23SNPs, 20 were significantly associated with obesity in the meta-analysis of two samples (p<0.05). Furthermore, 6SNPs revealed associations with T2D in the Marshfield data (top SNP rs12156368 with p=3.05×10-3); while two SNPs (rs6983992 and rs7843239) were associated with both obesity and T2D (p=0.0188 and 0.023 for obesity and p=8.47×10-3 and 0.0128 for T2D, respectively). Furthermore, 11SNPs revealed associations with HDL level (top SNP rs13254772 with p=2.79×10-3) in the Marshfield data; meanwhile rs7009615 was associated with both T2D (p=0.038) and HDL level (p=4.44×10-3). In addition, haplotype analyses further supported the results of single SNP analysis. CONCLUSIONS Common variants in PSD3 were associated with obesity, T2D and HDL level. These findings add important new insights into the pathogenesis of obesity, T2D and HDL cholesterol.
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Affiliation(s)
- Shaoqing Gong
- Department of Biostatistics and Epidemiology, College of Public Health, East Tennessee State University, Johnson City, TN, USA
| | - Chun Xu
- Department of Health and Biomedical Science, University of Texas Rio Grande Valley, Brownsville, TX, USA
| | - Liang Wang
- Department of Biostatistics and Epidemiology, College of Public Health, East Tennessee State University, Johnson City, TN, USA
| | - Ying Liu
- Department of Biostatistics and Epidemiology, College of Public Health, East Tennessee State University, Johnson City, TN, USA
| | - Daniel Owusu
- Department of Biostatistics and Epidemiology, College of Public Health, East Tennessee State University, Johnson City, TN, USA
| | - Beth A Bailey
- Department of Family Medicine, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, USA
| | - Yujing Li
- Department of Human Genetics, School of Medicine, Emory University, Atlanta, GA, USA
| | - Kesheng Wang
- Department of Biostatistics and Epidemiology, College of Public Health, East Tennessee State University, Johnson City, TN, USA.
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Terao C, Kawaguchi T, Dieude P, Varga J, Kuwana M, Hudson M, Kawaguchi Y, Matucci-Cerinic M, Ohmura K, Riemekasten G, Kawasaki A, Airo P, Horita T, Oka A, Hachulla E, Yoshifuji H, Caramaschi P, Hunzelmann N, Baron M, Atsumi T, Hassoun P, Torii T, Takahashi M, Tabara Y, Shimizu M, Tochimoto A, Ayuzawa N, Yanagida H, Furukawa H, Tohma S, Hasegawa M, Fujimoto M, Ishikawa O, Yamamoto T, Goto D, Asano Y, Jinnin M, Endo H, Takahashi H, Takehara K, Sato S, Ihn H, Raychaudhuri S, Liao K, Gregersen P, Tsuchiya N, Riccieri V, Melchers I, Valentini G, Cauvet A, Martinez M, Mimori T, Matsuda F, Allanore Y. Transethnic meta-analysis identifies GSDMA and PRDM1 as susceptibility genes to systemic sclerosis. Ann Rheum Dis 2017; 76:1150-1158. [PMID: 28314753 DOI: 10.1136/annrheumdis-2016-210645] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 01/08/2017] [Accepted: 02/21/2017] [Indexed: 12/14/2022]
Abstract
OBJECTIVES Systemic sclerosis (SSc) is an autoimmune disease characterised by skin and systemic fibrosis culminating in organ damage. Previous genetic studies including genome-wide association studies (GWAS) have identified 12 susceptibility loci satisfying genome-wide significance. Transethnic meta-analyses have successfully expanded the list of susceptibility genes and deepened biological insights for other autoimmune diseases. METHODS We performed transethnic meta-analysis of GWAS in the Japanese and European populations, followed by a two-staged replication study comprising a total of 4436 cases and 14 751 controls. Associations between significant single nuclear polymorphisms (SNPs) and neighbouring genes were evaluated. Enrichment analysis of H3K4Me3, a representative histone mark for active promoter was conducted with an expanded list of SSc susceptibility genes. RESULTS We identified two significant SNP in two loci, GSDMA and PRDM1, both of which are related to immune functions and associated with other autoimmune diseases (p=1.4×10-10 and 6.6×10-10, respectively). GSDMA also showed a significant association with limited cutaneous SSc. We also replicated the associations of previously reported loci including a non-GWAS locus, TNFAIP3. PRDM1 encodes BLIMP1, a transcription factor regulating T-cell proliferation and plasma cell differentiation. The top SNP in GSDMA was a missense variant and correlated with gene expression of neighbouring genes, and this could explain the association in this locus. We found different human leukocyte antigen (HLA) association patterns between the two populations. Enrichment analysis suggested the importance of CD4-naïve primary T cell. CONCLUSIONS GSDMA and PRDM1 are associated with SSc. These findings provide enhanced insight into the genetic and biological basis of SSc.
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Affiliation(s)
- Chikashi Terao
- Department of Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Center for the Promotion of Interdisciplinary Education and Research, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, Massachusetts, USA.,Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Program in Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts, USA
| | - Takahisa Kawaguchi
- Department of Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Philippe Dieude
- Rheumatology Bichat Hospital, Paris 7 University, Paris, France
| | - John Varga
- Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Masataka Kuwana
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Marie Hudson
- Jewish General Hospital and Lady Davis Research Institute, Montreal, Quebec, Canada
| | - Yasushi Kawaguchi
- Institute of Rheumatology, Tokyo Women's Medical University, Tokyo, Japan
| | - Marco Matucci-Cerinic
- Division of Rheumatology AOUC, Department of Experimental and Clinical Medicine, Department of Medical & Geriatrics Medicine, University of Florence, Firenze, Italy
| | - Koichiro Ohmura
- Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Gabriela Riemekasten
- Clinic for Rheumatology, University of Lübeck, Lübeck, Germany.,German Lung Center Borstel, Leibniz Institute, Germany
| | - Aya Kawasaki
- Molecular and Genetic Epidemiology Laboratory, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Paolo Airo
- Rheumatology Unit, Spedali Civili, Brescia, Italy
| | - Tetsuya Horita
- Division of Rheumatology, Endocrinology and Nephrology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Akira Oka
- The Institute of Medical Science, Tokai University, Isehara, Japan
| | - Eric Hachulla
- Internal Medicine Department, FHU Immune-Mediated Inflammatory Diseases and Targeted Therapies, Lille University, Lille, France
| | - Hajime Yoshifuji
- Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Paola Caramaschi
- Rheumatology Department, University of Verona, Azienda Ospedaliera Universitaria Integrata, Italy
| | | | - Murray Baron
- Jewish General Hospital and Lady Davis Research Institute, Montreal, Quebec, Canada
| | - Tatsuya Atsumi
- Division of Rheumatology, Endocrinology and Nephrology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Paul Hassoun
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | | | - Meiko Takahashi
- Department of Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yasuharu Tabara
- Department of Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masakazu Shimizu
- Department of Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akiko Tochimoto
- Institute of Rheumatology, Tokyo Women's Medical University, Tokyo, Japan
| | - Naho Ayuzawa
- Department of Rheumatology, National Hospital Organization, Utano National Hospital, Kyoto, Japan
| | - Hidetoshi Yanagida
- Department of Rheumatology, National Hospital Organization, Utano National Hospital, Kyoto, Japan
| | - Hiroshi Furukawa
- Molecular and Genetic Epidemiology Laboratory, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.,Clinical Research Center for Allergy and Rheumatology, Sagamihara Hospital, National Hospital Organization, Sagamihara, Japan
| | - Shigeto Tohma
- Clinical Research Center for Allergy and Rheumatology, Sagamihara Hospital, National Hospital Organization, Sagamihara, Japan
| | - Minoru Hasegawa
- Division of Medicine, Faculty of Medical Sciences, Department of Dermatology, University of Fukui, Fukui, Japan
| | - Manabu Fujimoto
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Osamu Ishikawa
- Department of Dermatology, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Toshiyuki Yamamoto
- Department of Dermatology, Fukushima Medical University, Fukushima, Japan
| | - Daisuke Goto
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yoshihide Asano
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Masatoshi Jinnin
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Hirahito Endo
- Division of Rheumatology, Department of Internal Medicine, School of Medicine, Toho University, Tokyo, Japan
| | - Hiroki Takahashi
- Department of Rheumatology and Clinical Immunology, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan
| | - Kazuhiko Takehara
- Department of Dermatology, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Shinichi Sato
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Hironobu Ihn
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Soumya Raychaudhuri
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, Massachusetts, USA.,Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Program in Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts, USA.,Arthritis Research UK Centre for Genetics and Genomics, Centre for Musculoskeletal Research, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK
| | - Katherine Liao
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Peter Gregersen
- Robert S. Boas Center for Genomics and Human Genetics, The Feinstein Institute for Medical Research, Manhasset, New York, USA
| | - Naoyuki Tsuchiya
- Molecular and Genetic Epidemiology Laboratory, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | | | | | - Gabriele Valentini
- Department of Clinical and Experimental Medicine, Rheumatology Section, Second University of Naples, Naples, Italy
| | - Anne Cauvet
- INSERM U1016/UMR 8104, Cochin Institute, Paris Descartes University, Paris, France
| | - Maria Martinez
- INSERM U1220-IRSD-Batiment B Purpan Hospital Toulouse, Paris, France
| | - Tsuneyo Mimori
- Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Fumihiko Matsuda
- Department of Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yannick Allanore
- Rheumatology A Department, INSERM U1016/UMR 8104, Cochin Institute, Paris Descartes University, Paris, France
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Zuo X, Zhang L, Luo H, Li Y, Zhu H. Systematic approach to understanding the pathogenesis of systemic sclerosis. Clin Genet 2017; 92:365-371. [PMID: 27918067 DOI: 10.1111/cge.12946] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 11/24/2016] [Accepted: 11/27/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Xiaoxia Zuo
- Department of Rheumatology, Xiangya Hospital; Central South University; Changsha People's Republic of China
| | - Lihua Zhang
- Department of Rheumatology, Xiangya Hospital; Central South University; Changsha People's Republic of China
| | - Hui Luo
- Department of Rheumatology, Xiangya Hospital; Central South University; Changsha People's Republic of China
| | - Yisha Li
- Department of Rheumatology, Xiangya Hospital; Central South University; Changsha People's Republic of China
| | - Honglin Zhu
- Department of Rheumatology, Xiangya Hospital; Central South University; Changsha People's Republic of China
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Galinsky KJ, Loh PR, Mallick S, Patterson NJ, Price AL. Population Structure of UK Biobank and Ancient Eurasians Reveals Adaptation at Genes Influencing Blood Pressure. Am J Hum Genet 2016; 99:1130-1139. [PMID: 27773431 PMCID: PMC5097941 DOI: 10.1016/j.ajhg.2016.09.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 09/21/2016] [Indexed: 01/11/2023] Open
Abstract
Analyzing genetic differences between closely related populations can be a powerful way to detect recent adaptation. The very large sample size of the UK Biobank is ideal for using population differentiation to detect selection and enables an analysis of the UK population structure at fine resolution. In this study, analyses of 113,851 UK Biobank samples showed that population structure in the UK is dominated by five principal components (PCs) spanning six clusters: Northern Ireland, Scotland, northern England, southern England, and two Welsh clusters. Analyses of ancient Eurasians revealed that populations in the northern UK have higher levels of Steppe ancestry and that UK population structure cannot be explained as a simple mixture of Celts and Saxons. A scan for unusual population differentiation along the top PCs identified a genome-wide-significant signal of selection at the coding variant rs601338 in FUT2 (p = 9.16 × 10-9). In addition, by combining evidence of unusual differentiation within the UK with evidence from ancient Eurasians, we identified genome-wide-significant (p = 5 × 10-8) signals of recent selection at two additional loci: CYP1A2-CSK and F12. We detected strong associations between diastolic blood pressure in the UK Biobank and both the variants with selection signals at CYP1A2-CSK (p = 1.10 × 10-19) and the variants with ancient Eurasian selection signals at the ATXN2-SH2B3 locus (p = 8.00 × 10-33), implicating recent adaptation related to blood pressure.
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Affiliation(s)
- Kevin J Galinsky
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.
| | - Po-Ru Loh
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Swapan Mallick
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Nick J Patterson
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Alkes L Price
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
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Multiple genes, especially immune-regulating genes, contribute to disease susceptibility in systemic sclerosis. Curr Opin Rheumatol 2016; 28:595-605. [DOI: 10.1097/bor.0000000000000334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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40
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Chairta P, Nicolaou P, Christodoulou K. Genomic and genetic studies of systemic sclerosis: A systematic review. Hum Immunol 2016; 78:153-165. [PMID: 27984087 DOI: 10.1016/j.humimm.2016.10.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 10/27/2016] [Accepted: 10/27/2016] [Indexed: 12/12/2022]
Abstract
Systemic sclerosis is an autoimmune rheumatic disease characterised by fibrosis, vasculopathy and inflammation. The exact aetiology of SSc remains unknown but evidences show that various genetic factors may be involved. This review aimed to assess HLA alleles/non-HLA polymorphisms, microsatellites and chromosomal abnormalities that have thus far been associated with SSc. PubMed, Embase and Scopus databases were searched up to July 29, 2015 using a combination of search-terms. Articles retrieved were evaluated based on set exclusion and inclusion criteria. A total of 150 publications passed the filters. HLA and non-HLA studies showed that particular alleles in the HLA-DRB1, HLA-DQB1, HLA-DQA1, HLA-DPB1 genes and variants in STAT4, IRF5 and CD247 are frequently associated with SSc. Non-HLA genes analysis was performed using the PANTHER and STRING10 databases. PANTHER classification revealed that inflammation mediated by chemokine and cytokine, interleukin and integrin signalling pathways are among the common extracted pathways associated with SSc. STRING10 analysis showed that NFKB1, CSF3R, STAT4, IFNG, PRL and ILs are the main "hubs" of interaction network of the non-HLA genes associated with SSc. This study gathers data of valid genetic factors associated with SSc and discusses the possible interactions of implicated molecules.
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Affiliation(s)
- Paraskevi Chairta
- Neurogenetics Department, The Cyprus Institute of Neurology and Genetics, Nicosia 2370, Cyprus; Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology and Genetics, Nicosia 2370, Cyprus
| | - Paschalis Nicolaou
- Neurogenetics Department, The Cyprus Institute of Neurology and Genetics, Nicosia 2370, Cyprus; Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology and Genetics, Nicosia 2370, Cyprus
| | - Kyproula Christodoulou
- Neurogenetics Department, The Cyprus Institute of Neurology and Genetics, Nicosia 2370, Cyprus; Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology and Genetics, Nicosia 2370, Cyprus.
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Abstract
Purpose of review Large-scale and follow-up genetic association studies in systemic sclerosis (SSc) have implicated over 40 regions in disease risk, 15 of which with robust associations. Nevertheless, the causal variants and the functional mechanisms underlying the genetic associations remain elusive, and the reasons for the higher disease burden in African Americans unknown. Incorporating tools from diverse fields is beginning to unveil the role of genetic diversity and regulatory variation in SSc susceptibility. This review will summarize recent advances in SSc genetics, including autoimmune disease overlap, evidence of natural selection, and current progress towards the dissection of the functional role of associated risk variants. Recent findings In the past year, multiple large-scale studies reported novel strong and suggestive SSc associations. These results, coupled with the regions shared with other autoimmune diseases, emphasize the role of dysregulation of immune pathways as a key causative factor in SSc pathogenesis. Strong evidence implicates natural selection as a mechanism contributing to the maintenance of some of these SSc alleles in the population. Studies integrating genomic, transcriptomic, and epigenomic datasets in specific cell types to identify causal autoimmune disease variants are emerging. Summary The identification and comprehensive understanding of the factors and mechanisms contributing to SSc will contribute to improved diagnosis and disease management.
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Gao L, Emond MJ, Louie T, Cheadle C, Berger AE, Rafaels N, Vergara C, Kim Y, Taub MA, Ruczinski I, Mathai SC, Rich SS, Nickerson DA, Hummers LK, Bamshad MJ, Hassoun PM, Mathias RA, Barnes KC. Identification of Rare Variants in ATP8B4 as a Risk Factor for Systemic Sclerosis by Whole-Exome Sequencing. Arthritis Rheumatol 2016; 68:191-200. [PMID: 26473621 DOI: 10.1002/art.39449] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 09/24/2015] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To determine the contribution of rare variants as genetic modifiers of the expressivity, penetrance, and severity of systemic sclerosis (SSc). METHODS We performed whole-exome sequencing of 78 European American patients with SSc, including 35 patients without pulmonary arterial hypertension (PAH) and 43 patients with PAH. Association testing of case-control probability for rare variants was performed using the unified sequence kernel association test with optimal kernel weighting and small sample adjustment by comparing all SSc patients with a reference population of 3,179 controls from the Exome Sequencing Project 5,500 exome data set. Replication genotyping was performed in an independent sample of 3,263 patients (415 patients with SSc and 2,848 controls). We conducted expression profiling of messenger RNA from 61 SSc patients (19 without PAH and 42 with PAH) and 41 corresponding controls. RESULTS The ATP8B4 gene was associated with a significant increase in the risk of SSc (P = 2.77 × 10(-7)). Among the 64 ATP8B4 variants tested, a single missense variant, c.1308C>G (F436L, rs55687265), provided the most compelling evidence of association (P = 9.35 × 10(-10), odds ratio [OR] 6.11), which was confirmed in the replication cohort (P = 0.012, OR 1.86) and meta-analysis (P = 1.92 × 10(-7), OR 2.5). Genes involved in E3 ubiquitin-protein ligase complex (ASB10) and cyclic nucleotide gated channelopathies (CNGB3) as well as HLA-DRB5 and HSPB2 (heat-shock protein 27) provided additional evidence of association (P < 10(-5)). Differential ATP8B4 expression was observed among the SSc patients compared to the controls (P = 0.0005). CONCLUSION ATP8B4 may represent a putative genetic risk factor for SSc and pulmonary vascular complications.
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Affiliation(s)
- Li Gao
- Johns Hopkins University, Baltimore, Maryland
| | | | | | | | | | | | | | - Yoonhee Kim
- National Human Genome Research Institute, NIH, Baltimore, Maryland
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Murdaca G, Contatore M, Gulli R, Mandich P, Puppo F. Genetic factors and systemic sclerosis. Autoimmun Rev 2016; 15:427-32. [DOI: 10.1016/j.autrev.2016.01.016] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 01/22/2016] [Indexed: 12/12/2022]
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Guo S, Li Y, Wang Y, Chu H, Chen Y, Liu Q, Guo G, Tu W, Wu W, Zou H, Yang L, Xiao R, Ma Y, Zhang F, Xiong M, Jin L, Zhou X, Wang J. Copy Number Variation of HLA-DQA1 and APOBEC3A/3B Contribute to the Susceptibility of Systemic Sclerosis in the Chinese Han Population. J Rheumatol 2016; 43:880-6. [PMID: 27036383 DOI: 10.3899/jrheum.150945] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/26/2016] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Systemic sclerosis (SSc) is a systemic connective tissue disease caused by a genetic aberrant. The involvement of the copy number variations (CNV) in the pathogenesis of SSc is unclear. We tried to identify some CNV that are involved with the susceptibility to SSc. METHODS A genome-wide CNV screening was performed in 20 patients with SSc. Five SSc-associated common CNV that included HLA-DRB5, HLA-DQA1, IRGM, CDC42EP3, and APOBEC3A/3B were identified from the screening and were then validated in 365 patients with SSc and 369 matched healthy controls. RESULTS Three hundred forty-four CNV (140 gains and 204 losses) and 2 CNV hotspots (6q21.3 and 22q11.2) were found in the SSc genomes (covering 24.2 megabases), suggesting that CNV were ubiquitous in the SSc genome and played important roles in the pathogenesis of SSc. The high copy number of HLA-DQA1 was a significantly protective factor for SSc (OR 0.07, p = 2.99 × 10(-17)), while the high copy number of APOBEC3A/B was a significant risk factor (OR 3.45, p = 6.4 × 10(-18)), adjusted with sex and age. The risk prediction model based on genetic factors in logistic regression showed moderate prediction ability, with area under the curve = 0.80 (95% CI 0.77-0.83), which demonstrated that APOBEC3A/B and HLA-DQA1 were powerful biomarkers for SSc risk evaluation and contributed to the susceptibility to SSc. CONCLUSION CNV of HLA-DQA1 and APOBEC3A/B contribute to the susceptibility to SSc in a Chinese Han population.
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Affiliation(s)
- Shicheng Guo
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Yuan Li
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Yi Wang
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Haiyan Chu
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Yulin Chen
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Qingmei Liu
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Gang Guo
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Wenzhen Tu
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Wenyu Wu
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Hejian Zou
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Li Yang
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Rong Xiao
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Yanyun Ma
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Feng Zhang
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Momiao Xiong
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Li Jin
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Xiaodong Zhou
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
| | - Jiucun Wang
- From the State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Institute of Rheumatology, Immunology and Allergy, Fudan University; Shanghai Traditional Chinese Medicine (TCM)-Integrated Hospital; Division of Dermatology, and Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai; Yiling Hospital, Shijiazhuang; Division of Rheumatology, Teaching Hospital of Chengdu University of TCM, Chengdu; Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China; School of Public Health, and Medical School at Houston, University of Texas, Houston, Texas, USA.S. Guo, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, and Institute of Rheumatology, Immunology and Allergy, Fudan University; Y. Li, MS, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Wang, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; H. Chu, PhD, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University; Y. Chen, PhD, State Key Laboratory o
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Wei P, Yang Y, Guo X, Hei N, Lai S, Assassi S, Liu M, Tan F, Zhou X. Identification of an Association of TNFAIP3 Polymorphisms With Matrix Metalloproteinase Expression in Fibroblasts in an Integrative Study of Systemic Sclerosis-Associated Genetic and Environmental Factors. Arthritis Rheumatol 2016; 68:749-60. [PMID: 26474180 PMCID: PMC4767670 DOI: 10.1002/art.39476] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 10/13/2015] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Systemic sclerosis (SSc) is a fibrotic disease attributed to both genetic susceptibility and environmental factors. This study was undertaken to investigate the associations between SSc-associated genetic variants and the expression of extracellular matrix (ECM) genes in human fibroblasts stimulated with silica particles in time-course and dose-response experiments. METHODS A total of 200 fibroblast strains were examined for ECM gene expression after stimulation with silica particles. The fibroblasts were genetically profiled using Immunochip assays and then subjected to whole-genome genotype imputation. Associations of genotypes and gene expression were first analyzed in a Caucasian cohort and then validated in a meta-analysis combining the results from Caucasian, African American, and Hispanic subjects. A linear mixed model for longitudinal data analysis was used to identify genetic variants associated with the expression of ECM genes, and the associations were validated by using a haplotype-based longitudinal association test on regions that included the loci identified. RESULTS The single-nucleotide polymorphism rs58905141 in TNFAIP3 was consistently associated with time-course and/or dose-response expression of MMP3 and MMP1 in the fibroblasts stimulated with silica particles in both the analysis of Caucasian subjects only and the meta-analysis. Results of the haplotype-based analysis validated the association signals. CONCLUSION Our findings indicate that a genetic variant of TNFAIP3 is strongly associated with the silica-induced profibrotic response of fibroblasts. In silico functional analysis based on the ENCODE database revealed that rs58905141 might affect the binding activities of the transcription factors for TNFAIP3. This is the first genome-wide study of interactions between genetic and environmental factors in a complex SSc fibroblast model.
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Affiliation(s)
- Peng Wei
- Human Genetics Center and Department of Biostatistics, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Yang Yang
- Human Genetics Center and Department of Biostatistics, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX 77030
- Division of Rheumatology, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Xinjian Guo
- Division of Rheumatology, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Nainan Hei
- Human Genetics Center and Department of Biostatistics, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Syeling Lai
- Department of Pathology, Baylor College of Medicine, Houston, TX 77030
| | - Shervin Assassi
- Division of Rheumatology, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Mengyuan Liu
- Division of Rheumatology, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Filemon Tan
- Division of Rheumatology, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, TX 77030
| | - Xiaodong Zhou
- Division of Rheumatology, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, TX 77030
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Desbois AC, Cacoub P. Systemic sclerosis: An update in 2016. Autoimmun Rev 2016; 15:417-26. [PMID: 26802722 DOI: 10.1016/j.autrev.2016.01.007] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 01/11/2016] [Indexed: 01/27/2023]
Abstract
Systemic sclerosis (SSc) is a chronic immune disorder of unknown origin, dominated by excessive fibrosis responsible for cutaneous and pulmonary fibrosis, and by vascular endothelial dysfunction at the origin of skin ischemia, renal and pulmonary artery lesions. Renal and pulmonary complications are mainly responsible for the severity of the disease. Recent advances led to a better understanding of pathological mechanisms and a more accurate classification of patients according to clinical and biological (auto-antibodies) phenotype. Recent trials provided interesting data on different therapeutic strategies, depending on organ involvement. These data are of particular importance in such disease, still characterized by increased mortality and morbidity rates. In this review, we aim to synthetize recent advances in diagnosis and prognosis leading to better classification of SSc patients, and in therapeutic management.
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Affiliation(s)
- Anne Claire Desbois
- Sorbonne Universités, UPMC Université Paris 06, UMR 7211, Paris, France; Inflammation-Immunopathology-Biotherapy Department (DHU i2B), F-75005 Paris, France; INSERM, UMR_S 959, F-75013 Paris, France; CNRS, FRE3632, F-75005 Paris, France
| | - Patrice Cacoub
- Sorbonne Universités, UPMC Université Paris 06, UMR 7211, Paris, France; Inflammation-Immunopathology-Biotherapy Department (DHU i2B), F-75005 Paris, France; AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Department of Internal Medicine and Clinical Immunology, 83 boulevard de l'hôpital, F-75013 Paris, France.
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Abstract
Significant advances have been made in understanding the genetic basis of systemic sclerosis (SSc) in recent years. Genomewide association and other large-scale genetic studies have identified 30 largely immunity-related genes which are significantly associated with SSc. We review these studies, along with genomewide expression studies, proteomic studies, genetic mouse models, and insights from rare sclerodermatous diseases. Collectively, these studies have begun to identify pathways that are relevant to SSc pathogenesis. The findings presented in this review illustrate how both genetic and genomic aberrations play important roles in the development of SSc. However, despite these recent discoveries, there remain major gaps between current knowledge of SSc, a unified understanding of pathogenesis, and effective treatment. To this aim, we address the important issue of SSc heterogeneity and discuss how future research needs to address this in order to develop a clearer understanding of this devastating and complex disease.
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López-Mejías R, Genre F, Remuzgo-Martínez S, Pérez BS, Castañeda S, Llorca J, Ortego-Centeno N, Ubilla B, Mijares V, Pina T, Calvo-Río V, Palmou N, Miranda-Filloy JA, Parejo AN, Argila D, Sánchez-Pérez J, Rubio E, Luque ML, Blanco-Madrigal JM, Galíndez-Aguirregoikoa E, Ocejo-Vinyals JG, Martín J, Blanco R, González-Gay MA. Role of PTPN22 and CSK gene polymorphisms as predictors of susceptibility and clinical heterogeneity in patients with Henoch-Schönlein purpura (IgA vasculitis). Arthritis Res Ther 2015; 17:286. [PMID: 26458874 PMCID: PMC4603645 DOI: 10.1186/s13075-015-0796-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 09/23/2015] [Indexed: 01/08/2023] Open
Abstract
Introduction To determine whether the PTPN22 (protein tyrosine phosphatase nonreceptor 22)/CSK (c-src tyrosine kinase) pathway is implicated in the susceptibility and clinical heterogeneity of Henoch-Schönlein purpura (HSP) in the largest series of Caucasian HSP patients ever assessed for genetic studies. Methods A set of 329 Spanish patients diagnosed with HSP fulfilling the American College of Rheumatology and the Michel et al. classification criteria and 515 sex and ethnically matched controls were recruited in this study. Two well-known CSK (CSK rs34933034 and CSK rs1378942) and two functional PTPN22 (PTPN22 rs2476601 (R620W) and PTPN22 rs33996649 (R263Q)) polymorphisms, previously associated with autoimmunity, were genotyped with TaqMan single nucleotide polymorphism (SNP) genotyping assays. Results No significant differences in the genotype and allele frequencies between HSP patients and controls were observed when the CSK rs34933034, CSK rs1378942, PTPN22 rs2476601 (R620W) and PTPN22 rs33996649 (R263Q) polymorphisms were analyzed independently. In keeping with this observation, no significant differences were found when we assessed these polymorphisms combined conforming haplotypes. In addition, there were no differences in the allele or genotype frequencies when HSP patients were stratified according the age at disease onset, sex, presence of arthralgia/arthritis, nephritis or gastrointestinal manifestations. Conclusions Our results do not support association between PTPN22/CSK and HSP. Electronic supplementary material The online version of this article (doi:10.1186/s13075-015-0796-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Raquel López-Mejías
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Avenida de Valdecilla, s/n, 39008, Santander, Spain.
| | - Fernanda Genre
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Avenida de Valdecilla, s/n, 39008, Santander, Spain.
| | - Sara Remuzgo-Martínez
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Avenida de Valdecilla, s/n, 39008, Santander, Spain.
| | - Belén Sevilla Pérez
- Department of Medicine, Hospital Universitario San Cecilio, Calle Dr. Oloriz, 16, 18012, Granada, Spain.
| | - Santos Castañeda
- Rheumatology Department, Hospital Universitario La Princesa, IIS-Princesa, Calle Diego de León, 62, 28006, Madrid, Spain.
| | - Javier Llorca
- Epidemiology and Computational Biology Department, School of Medicine, University of Cantabria, and CIBER Epidemiología y Salud Pública (CIBERESP), IDIVAL, Avenida Cardenal Herrera Oria, s/n, 39011, Santander, Spain.
| | - Norberto Ortego-Centeno
- Department of Medicine, Hospital Universitario San Cecilio, Calle Dr. Oloriz, 16, 18012, Granada, Spain.
| | - Begoña Ubilla
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Avenida de Valdecilla, s/n, 39008, Santander, Spain.
| | - Verónica Mijares
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Avenida de Valdecilla, s/n, 39008, Santander, Spain.
| | - Trinitario Pina
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Avenida de Valdecilla, s/n, 39008, Santander, Spain.
| | - Vanesa Calvo-Río
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Avenida de Valdecilla, s/n, 39008, Santander, Spain.
| | - Natalia Palmou
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Avenida de Valdecilla, s/n, 39008, Santander, Spain.
| | - José A Miranda-Filloy
- Division of Rheumatology, Hospital Universitario Lucus Augusti, Calle Dr. Ochoa, s/n, 27004, Lugo, Spain.
| | - Antonio Navas Parejo
- Nephrology Department, Hospital Universitario San Cecilio, Calle Dr. Oloriz, 16, 18012, Granada, Spain.
| | - Diego Argila
- Dermatology Department, Hospital Universitario La Princesa, IIS-Princesa, Calle Diego de León, 62, 28006, Madrid, Spain.
| | - Javier Sánchez-Pérez
- Dermatology Department, Hospital Universitario La Princesa, IIS-Princesa, Calle Diego de León, 62, 28006, Madrid, Spain.
| | - Esteban Rubio
- Rheumatology Department, Hospital Universitario Virgen del Rocío, Avenida Manuel Siurot, s/n, 41013, Sevilla, Spain.
| | - Manuel León Luque
- Rheumatology Department, Hospital Universitario Virgen del Rocío, Avenida Manuel Siurot, s/n, 41013, Sevilla, Spain.
| | - Juan María Blanco-Madrigal
- Rheumatology Department, Hospital Universitario de Basurto, Avenida de Montevideo, 18, 48013, Bilbao, Spain.
| | - Eva Galíndez-Aguirregoikoa
- Rheumatology Department, Hospital Universitario de Basurto, Avenida de Montevideo, 18, 48013, Bilbao, Spain.
| | - J Gonzalo Ocejo-Vinyals
- Immunology Department, Hospital Universitario Marqués de Valdecilla, Avenida de Valdecilla, s/n, 39008, Santander, Spain.
| | - Javier Martín
- Institute of Parasitology and Biomedicine López-Neyra, CSIC, Avenida del Conocimiento, s/n, 18016, Granada, Spain.
| | - Ricardo Blanco
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Avenida de Valdecilla, s/n, 39008, Santander, Spain.
| | - Miguel A González-Gay
- Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Avenida de Valdecilla, s/n, 39008, Santander, Spain. .,Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown 2193, Johannesburg, South Africa.
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Bossini-Castillo L, López-Isac E, Martín J. Immunogenetics of systemic sclerosis: Defining heritability, functional variants and shared-autoimmunity pathways. J Autoimmun 2015. [PMID: 26212856 DOI: 10.1016/j.jaut.2015.07.005] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Systemic sclerosis (SSc) is a clinically heterogeneous connective tissue disorder of complex etiology. The development of large-scale genetic studies, such as genome-wide association studies (GWASs) or the Immunochip platform, has achieved remarkable progress in the knowledge of the genetic background of SSc. Herein, we provide an updated picture SSc genetic factors, offering an insight into their role in pathogenic mechanisms that characterize the disease. We review the most recent findings in the HLA region and the well-established non-HLA loci. Up to 18 non-HLA risk factors fulfilled the selected criteria and they were classified according to their role in the innate or adaptive immune response, in apoptosis, autophagy or fibrosis. Additionally, SSc heritability has remained as a controversial question since twin studies provided low SSc heritability estimates. However, we have recalculated the lower bond of narrow sense SSc heritability using GWAS data. Remarkably, our results suggest a greater influence of genetics on SSc than previously reported. Furthermore, we also offer a functional classification of SSc-associated SNPs and their proxies, based on annotated data, to provide clues for the identification of causal variants in these loci. Finally, we explore the genetic overlap between SSc and other autoimmune diseases (ADs). The vast majority of SSc risk loci are shared with at least one additional AD, being the overlap between SSc and systemic lupus erythematous the largest. Nevertheless, we found that an important portion of SSc risk factors are also common to rheumatoid arthritis or primary biliary cirrhosis. Considering all these evidences, we are confident that future research will be successful in understanding the relevant altered pathways in SSc and in identifying new biomarkers and therapeutic targets for the disease.
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Affiliation(s)
- Lara Bossini-Castillo
- Instituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas (IPBLN-CSIC), Parque Tecnológico de La Salud (PTS), Granada, Spain.
| | - Elena López-Isac
- Instituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas (IPBLN-CSIC), Parque Tecnológico de La Salud (PTS), Granada, Spain
| | - Javier Martín
- Instituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas (IPBLN-CSIC), Parque Tecnológico de La Salud (PTS), Granada, Spain.
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50
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Pattanaik D, Brown M, Postlethwaite BC, Postlethwaite AE. Pathogenesis of Systemic Sclerosis. Front Immunol 2015; 6:272. [PMID: 26106387 PMCID: PMC4459100 DOI: 10.3389/fimmu.2015.00272] [Citation(s) in RCA: 251] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 05/16/2015] [Indexed: 01/04/2023] Open
Abstract
Systemic scleroderma (SSc) is one of the most complex systemic autoimmune diseases. It targets the vasculature, connective tissue-producing cells (namely fibroblasts/myofibroblasts), and components of the innate and adaptive immune systems. Clinical and pathologic manifestations of SSc are the result of: (1) innate/adaptive immune system abnormalities leading to production of autoantibodies and cell-mediated autoimmunity, (2) microvascular endothelial cell/small vessel fibroproliferative vasculopathy, and (3) fibroblast dysfunction generating excessive accumulation of collagen and other matrix components in skin and internal organs. All three of these processes interact and affect each other. The disease is heterogeneous in its clinical presentation that likely reflects different genetic or triggering factor (i.e., infection or environmental toxin) influences on the immune system, vasculature, and connective tissue cells. The roles played by other ubiquitous molecular entities (such as lysophospholipids, endocannabinoids, and their diverse receptors and vitamin D) in influencing the immune system, vasculature, and connective tissue cells are just beginning to be realized and studied and may provide insights into new therapeutic approaches to treat SSc.
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Affiliation(s)
- Debendra Pattanaik
- Department of Medicine, Division of Connective Tissue Diseases, The University of Tennessee Health Science Center , Memphis, TN , USA ; Department of Veterans Affairs Medical Center , Memphis, TN , USA
| | - Monica Brown
- Section of Pediatric Rheumatology, Department of Pediatrics, The University of Tennessee Health Science Center , Memphis, TN , USA
| | - Bradley C Postlethwaite
- Department of Medicine, Division of Connective Tissue Diseases, The University of Tennessee Health Science Center , Memphis, TN , USA
| | - Arnold E Postlethwaite
- Department of Medicine, Division of Connective Tissue Diseases, The University of Tennessee Health Science Center , Memphis, TN , USA ; Department of Veterans Affairs Medical Center , Memphis, TN , USA
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