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Xing M, Ma Y, Cui F, Li D, Wang J, Tang L, Zheng L, Yang J, Tian Y. Air Pollution, Genetic Susceptibility, and Risk of Incident Systemic Lupus Erythematosus: A Prospective Cohort Study. Arthritis Rheumatol 2024. [PMID: 38982844 DOI: 10.1002/art.42929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/01/2024] [Accepted: 06/07/2024] [Indexed: 07/11/2024]
Abstract
OBJECTIVE There are few existing studies that investigate the risk of systemic lupus erythematosus (SLE) associated with long-term exposure to air pollutants. This study aimed to explore associations between long-term exposure to air pollutants and incident SLE and further evaluate interactions and joint effects of genetic risk and air pollutants. METHODS A total of 459,815 participants were included from UK Biobank. The concentrations of air pollutants (fine particulate matter with diameter ≤2.5 μm [PM2.5], particulate matter diameter ≤10 μm [PM10], nitrogen dioxide [NO2], and nitrogen oxides [NOx]) were estimated by land-use regression model. We applied Cox proportional hazards model to explore linkages of air pollutants and incident SLE. The polygenic risk score (PRS) was used for further assessing the interactions and joint effects of genetic risk and air pollutants. RESULTS A total of 399 patients with SLE were identified during a median follow-up of 11.77 years. There were positive associations between air pollutant exposure and incident SLE, as the adjusted hazard ratios were 1.18 (95% confidence interval [95% CI] 1.06-1.32), 1.23 (1.10-1.39), 1.27 (1.14-1.41), and 1.13 (1.03-1.23) for each interquartile range increase in PM2.5, PM10, NO2, and NOx, respectively. Moreover, participants with high genetic risk and high air pollution exposure had the highest risk of incident SLE compared with those with low genetic risk and low air pollution exposure (adjusted hazard ratio: PM2.5, 4.16 [95% CI 2.67-6.49]; PM10, 5.31 [95% CI 3.30,-8.55]; NO2, 5.61 [95% CI 3.45-9.13]; and NOx, 4.80 [95% CI 3.00-7.66]). There was a significant multiplicative interaction between NO2 and PRS. CONCLUSION Long-term exposure to air pollutants (PM2.5, PM10, NO2, and NOx) may increase the risk of developing SLE.
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Affiliation(s)
- Meiqi Xing
- Huazhong University of Science and Technology, Wuhan, China
| | - Yudiyang Ma
- Huazhong University of Science and Technology, Wuhan, China
| | - Feipeng Cui
- Huazhong University of Science and Technology, Wuhan, China
| | - Dankang Li
- Huazhong University of Science and Technology, Wuhan, China
| | - Jianing Wang
- Huazhong University of Science and Technology, Wuhan, China
| | - Linxi Tang
- Huazhong University of Science and Technology, Wuhan, China
| | - Lei Zheng
- Huazhong University of Science and Technology, Wuhan, China
| | - Jian Yang
- The First College of Clinical Medical Science, China Three Gorges University, Yichang Central People's Hospital, Hubei Key Laboratory of Ischemic Cardiovascular Disease, and Hubei Provincial Clinical Research Center for Ischemic Cardiovascular Disease, Yichang, China
| | - Yaohua Tian
- Huazhong University of Science and Technology, Wuhan, China
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Guillet S, Lazarov T, Jordan N, Boisson B, Tello M, Craddock B, Zhou T, Nishi C, Bareja R, Yang H, Rieux-Laucat F, Lorenzo RIF, Dyall SD, Isenberg D, D’Cruz D, Lachmann N, Elemento O, Viale A, Socci ND, Abel L, Nagata S, Huse M, Miller WT, Casanova JL, Geissmann F. ACK1 and BRK non-receptor tyrosine kinase deficiencies are associated with familial systemic lupus and involved in efferocytosis. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.02.15.24302255. [PMID: 38883731 PMCID: PMC11177913 DOI: 10.1101/2024.02.15.24302255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
Systemic Lupus Erythematosus (SLE) is an autoimmune disease, the pathophysiology and genetic basis of which are incompletely understood. Using a forward genetic screen in multiplex families with systemic lupus erythematosus (SLE) we identified an association between SLE and compound heterozygous deleterious variants in the non-receptor tyrosine kinases (NRTKs) ACK1 and BRK. Experimental blockade of ACK1 or BRK increased circulating autoantibodies in vivo in mice and exacerbated glomerular IgG deposits in an SLE mouse model. Mechanistically, non-receptor tyrosine kinases (NRTKs) regulate activation, migration, and proliferation of immune cells. We found that the patients' ACK1 and BRK variants impair efferocytosis, the MERTK-mediated anti-inflammatory response to apoptotic cells, in human induced Pluripotent Stem Cell (hiPSC)-derived macrophages, which may contribute to SLE pathogenesis. Overall, our data suggest that ACK1 and BRK deficiencies are associated with human SLE and impair efferocytosis in macrophages.
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Affiliation(s)
- Stephanie Guillet
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
- Ecole doctorale Bio Sorbonne Paris Cité, Université Paris Descartes-Sorbonne Paris Cité.Paris, France
| | - Tomi Lazarov
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of MedicalSciences, New York, New York 10065, USA
| | - Natasha Jordan
- Centre for Molecular and Cellular Biology of Inflammation (CMCBI), King’s College London and Louise Coote Lupus Unit, Guy’s and Thomas’ Hospitals, London SE1 1UL, UK
| | - Bertrand Boisson
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, 10065 NY, USA
- University of Paris Cité, Imagine Institute, Paris, France
| | - Maria Tello
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Barbara Craddock
- Department of Physiology and Biophysics, Stony Brook University School of Medicine, Stony Brook, NY, 11794-8661
| | - Ting Zhou
- SKI Stem Cell Research Core, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Chihiro Nishi
- Laboratory of Biochemistry & Immunology, World Premier International Immunology Frontier Research Center, Osaka University, Suita, Osaka 565-0871
| | - Rohan Bareja
- Cary and Israel Englander Institute for Precision Medicine, Institute for Computational Biomedicine, Meyer Cancer Center Weill Cornell Medical College, New York, New York 10065, USA
| | - Hairu Yang
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | | | | | - Sabrina D. Dyall
- Department of Biosciences and Ocean Studies, Faculty of Science, University of Mauritius, Reduit, Mauritius
| | - David Isenberg
- Centre for Rheumatology, Division of Medicine, University College London, The Rayne Building, University College London
| | - David D’Cruz
- Centre for Molecular and Cellular Biology of Inflammation (CMCBI), King’s College London and Louise Coote Lupus Unit, Guy’s and Thomas’ Hospitals, London SE1 1UL, UK
| | - Nico Lachmann
- Institute of Experimental Hematology, REBIRTH Cluster of Excellence, Hannover Medical School, Hannover 30625, Germany
| | - Olivier Elemento
- Cary and Israel Englander Institute for Precision Medicine, Institute for Computational Biomedicine, Meyer Cancer Center Weill Cornell Medical College, New York, New York 10065, USA
| | - Agnes Viale
- Marie-Josée & Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Nicholas D. Socci
- Marie-Josée & Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
- Bioinformatics Core, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Laurent Abel
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, 10065 NY, USA
- University of Paris Cité, Imagine Institute, Paris, France
| | - Shigekazu Nagata
- Laboratory of Biochemistry & Immunology, World Premier International Immunology Frontier Research Center, Osaka University, Suita, Osaka 565-0871
| | - Morgan Huse
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - W. Todd Miller
- Department of Physiology and Biophysics, Stony Brook University School of Medicine, Stony Brook, NY, 11794-8661
| | - Jean-Laurent Casanova
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, 10065 NY, USA
- University of Paris Cité, Imagine Institute, Paris, France
- Howard Hughes Medical Institute, New York, 10065 NY, USA
- Lab of Human Genetics of Infectious Diseases, INSERM, Necker Hospital for Sick Children, Paris, France, EU
- Department of Pediatrics, Necker Hospital for Sick Children, Paris, France, EU
| | - Frederic Geissmann
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of MedicalSciences, New York, New York 10065, USA
- Centre for Molecular and Cellular Biology of Inflammation (CMCBI), King’s College London and Louise Coote Lupus Unit, Guy’s and Thomas’ Hospitals, London SE1 1UL, UK
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Nigrovic PA, Wang Q, Kim T, Martinez-Bonet M, Aguiar VRC, Sim S, Cui J, Sparks JA, Chen X, Todd M, Wauford B, Marion MC, Langefeld CD, Weirauch MT, Gutierrez-Arcelus M. High-throughput identification of functional regulatory SNPs in systemic lupus erythematosus. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.08.16.553538. [PMID: 37645953 PMCID: PMC10462027 DOI: 10.1101/2023.08.16.553538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Genome-wide association studies implicate multiple loci in risk for systemic lupus erythematosus (SLE), but few contain exonic variants, rendering systematic identification of non-coding variants essential to decoding SLE genetics. We utilized SNP-seq and bioinformatic enrichment to interrogate 2180 single-nucleotide polymorphisms (SNPs) from 87 SLE risk loci for potential binding of transcription factors and related proteins from B cells. 52 SNPs that passed initial screening were tested by electrophoretic mobility shift and luciferase reporter assays. To validate the approach, we studied rs2297550 in detail, finding that the risk allele enhanced binding to the transcription factor Ikaros (IKZF1), thereby modulating expression of IKBKE. Correspondingly, primary cells from genotyped healthy donors bearing the risk allele expressed higher levels of the interferon / NF-κB regulator IKKϵ. Together, these findings define a set of likely functional non-coding lupus risk variants and identify a new regulatory pathway involving rs2297550, Ikaros, and IKKϵ implicated by human genetics in risk for SLE.
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Zhang Y, Hou G, Shen N. Non-coding DNA variants for risk in lupus. Best Pract Res Clin Rheumatol 2024:101937. [PMID: 38429183 DOI: 10.1016/j.berh.2024.101937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/08/2024] [Accepted: 02/12/2024] [Indexed: 03/03/2024]
Abstract
Systemic Lupus Erythematosus (SLE) is a multifactorial autoimmune disease that arises from a dynamic interplay between genetics and environmental triggers. The advent of sophisticated genomics technology has catalyzed a shift in our understanding of disease etiology, spotlighting the pivotal role of non-coding DNA variants in SLE pathogenesis. In this review, we present a comprehensive examination of the non-coding variants associated with SLE, shedding light on their role in influencing disease risk and progression. We discuss the latest methodological advancements that have been instrumental in the identification and functional characterization of these genomic elements, with a special focus on the transformative power of CRISPR-based gene-editing technologies. Additionally, the review probes into the therapeutic opportunities that arise from modulating non-coding regions associated with SLE. Through an exploration of the complex network of non-coding DNA, this review aspires to decode the genetic puzzle of SLE and set the stage for groundbreaking gene-based therapeutic interventions and the advancement of precision medicine strategies tailored to SLE management.
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Affiliation(s)
- Yutong Zhang
- Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai, 200001, China
| | - Guojun Hou
- Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai, 200001, China
| | - Nan Shen
- Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai, 200001, China.
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5
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Federici S, Cinicola BL, La Torre F, Castagnoli R, Lougaris V, Giardino G, Volpi S, Caorsi R, Leonardi L, Corrente S, Soresina A, Cancrini C, Insalaco A, Gattorno M, De Benedetti F, Marseglia GL, Del Giudice MM, Cardinale F. Vasculitis and vasculopathy associated with inborn errors of immunity: an overview. Front Pediatr 2024; 11:1258301. [PMID: 38357265 PMCID: PMC10866297 DOI: 10.3389/fped.2023.1258301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 11/29/2023] [Indexed: 02/16/2024] Open
Abstract
Systemic autoinflammatory diseases (SAIDs) are disorders of innate immunity, which are characterized by unprovoked recurrent flares of systemic inflammation often characterized by fever associated with clinical manifestations mainly involving the musculoskeletal, mucocutaneous, gastrointestinal, and nervous systems. Several conditions also present with varied, sometimes prominent, involvement of the vascular system, with features of vasculitis characterized by variable target vessel involvement and organ damage. Here, we report a systematic review of vasculitis and vasculopathy associated with inborn errors of immunity.
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Affiliation(s)
- Silvia Federici
- Division of Rheumatology, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | - Bianca Laura Cinicola
- Department of Maternal Infantile and Urological Sciences, Sapienza University of Rome, Rome, Italy
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Francesco La Torre
- Department of Pediatrics, Giovanni XXIII Pediatric Hospital, University of Bari, Bari, Italy
| | - Riccardo Castagnoli
- Pediatric Unit, Department of Clinical, Surgical, Diagnostic, and Pediatric Sciences, University of Pavia, Pavia, Italy
- Pediatric Clinic, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Vassilios Lougaris
- Department of Clinical and Experimental Sciences, Pediatrics Clinic and Institute for Molecular Medicine A. Nocivelli, University of Brescia and ASST-Spedali Civili di Brescia, Brescia, Italy
| | - Giuliana Giardino
- Pediatric Section, Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Stefano Volpi
- Center for Autoinflammatory Diseases and Immunodeficiency, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Roberta Caorsi
- Center for Autoinflammatory Diseases and Immunodeficiency, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Lucia Leonardi
- Department of Maternal Infantile and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | | | - Annarosa Soresina
- Unit of Pediatric Immunology, Pediatrics Clinic, University of Brescia, ASST-Spedali Civili Brescia, Brescia, Italy
| | - Caterina Cancrini
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
- Academic Department of Pediatrics, Immune and Infectious Diseases Division, Research Unit of Primary Immunodeficiencies, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | - Antonella Insalaco
- Division of Rheumatology, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | - Marco Gattorno
- Department of Maternal Infantile and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | | | - Gian Luigi Marseglia
- Pediatric Unit, Department of Clinical, Surgical, Diagnostic, and Pediatric Sciences, University of Pavia, Pavia, Italy
- Pediatric Clinic, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Michele Miraglia Del Giudice
- Department of Woman, Child and of General and Specialized Surgery, University of Campania ‘Luigi Vanvitelli’, Naples, Italy
| | - Fabio Cardinale
- Department of Pediatrics, Giovanni XXIII Pediatric Hospital, University of Bari, Bari, Italy
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Fazel-Najafabadi M, Looger LL, Reddy-Rallabandi H, Nath SK. A multilayered post-GWAS analysis pipeline defines functional variants and target genes for systemic lupus erythematosus (SLE). MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.04.07.23288295. [PMID: 37066327 PMCID: PMC10104240 DOI: 10.1101/2023.04.07.23288295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
Objectives Systemic lupus erythematosus (SLE), an autoimmune disease with incompletely understood etiology, has a strong genetic component. Although genome-wide association studies (GWAS) have revealed multiple SLE susceptibility loci and associated single nucleotide polymorphisms (SNPs), the precise causal variants, target genes, cell types, tissues, and mechanisms of action remain largely unknown. Methods Here, we report a comprehensive post-GWAS analysis using extensive bioinformatics, molecular modeling, and integrative functional genomic and epigenomic analyses to optimize fine-mapping. We compile and cross-reference immune cell-specific expression quantitative trait loci ( cis - and trans -eQTLs) with promoter-capture Hi-C, allele-specific chromatin accessibility, and massively parallel reporter assay data to define predisposing variants and target genes. We experimentally validate a predicted locus using CRISPR/Cas9 genome editing, qPCR, and Western blot. Results Anchoring on 452 index SNPs, we selected 9,931 high-linkage disequilibrium (r 2 >0.8) SNPs and defined 182 independent non-HLA SLE loci. 3,746 SNPs from 143 loci were identified as regulating 564 unique genes. Target genes are enriched in lupus-related tissues and associated with other autoimmune diseases. Of these, 329 SNPs (106 loci) showed significant allele-specific chromatin accessibility and/or enhancer activity, indicating regulatory potential. Using CRISPR/Cas9, we validated rs57668933 as a functional variant regulating multiple targets, including SLE risk gene ELF1 , in B-cells. Conclusion We demonstrate and validate post-GWAS strategies for utilizing multi-dimensional data to prioritize likely causal variants with cognate gene targets underlying SLE pathogenesis. Our results provide a catalog of significantly SLE-associated SNPs and loci, target genes, and likely biochemical mechanisms, to guide experimental characterization.
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Pan Z, Yang Q, Zhang X, Xu X, Sun Y, Zhou F, Wen L. TRIM5 Promotes Systemic Lupus Erythematosus Through CD4(+) T Cells and Macrophage. Int J Gen Med 2023; 16:3567-3580. [PMID: 37614552 PMCID: PMC10443694 DOI: 10.2147/ijgm.s416493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 08/03/2023] [Indexed: 08/25/2023] Open
Abstract
Purpose Systemic lupus erythematosus (SLE) is a typical autoimmune disease characterized by the involvement of multiple organs and the production of antinuclear antibodies. This study aimed to investigate the molecular mechanism of SLE. Patients and Methods We retrieved genome-wide gene expression levels from five public datasets with relatively large sample sizes from the Gene Expression Omnibus (GEO), and we compared the expression profiles of peripheral blood mononuclear cells (PBMCs) from SLE patients and healthy controls (HCs). The expression of seven target genes in PBMCs from 25 cases and 3 HCs was further validated by reverse-transcription quantitative PCR (RT‒qPCR). Flow cytometry was used for verifying the proportion of naive CD4(+) T cells and M2 macrophages in PBMCs from 5 cases and 4 HCs. Results We found 14 genes (TRIM5, FAM8A1, SHFL, LHFPL2, PARP14, IFIT5, PARP12, DDX60, IRF7, IF144, OAS1, OAS3, RHBDF2, and RSAD2) that were differentially expressed among all five datasets. The heterogeneity test under the fixed effect model showed no obvious heterogeneity of TRIM5, FAM8A1, and SHFL across different populations. TRIM5 was positively correlated with the remaining 13 genes. By separating patient samples into TRIM5-high and TRIM5-low groups, we found that up-regulated genes in the TRIM5-high group were mainly enriched in virus-related pathways. Immune cell proportion analysis and flow cytometry revealed that naive CD4(+) T cells were significantly decreased while M2 macrophages were increased in the SLE group. TRIM5 expression levels were negatively correlated with naive CD4(+) T cells but positively correlated with M2 macrophages. Conclusion Our data indicated that TRIM5 might be a key factor that modulates SLE etiology, possibly through naive CD4(+) T cells and M2 macrophages.
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Affiliation(s)
- Zhaobing Pan
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Institute of Dermatology, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, People’s Republic of China
| | - Qiaoshan Yang
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Institute of Dermatology, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, People’s Republic of China
| | - Xiaojing Zhang
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Institute of Dermatology, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, People’s Republic of China
| | - Xiaoqing Xu
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Institute of Dermatology, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, People’s Republic of China
| | - Yao Sun
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Institute of Dermatology, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, People’s Republic of China
| | - Fusheng Zhou
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Institute of Dermatology, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, People’s Republic of China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, People’s Republic of China
| | - Leilei Wen
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Institute of Dermatology, Anhui Medical University, Hefei, Anhui, People’s Republic of China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, People’s Republic of China
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Vazzana KM, Musolf AM, Bailey-Wilson JE, Hiraki LT, Silverman ED, Scott C, Dalgard CL, Hasni S, Deng Z, Kaplan MJ, Lewandowski LB. Transmission disequilibrium analysis of whole genome data in childhood-onset systemic lupus erythematosus. Genes Immun 2023; 24:200-206. [PMID: 37488248 PMCID: PMC10529982 DOI: 10.1038/s41435-023-00214-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 06/23/2023] [Accepted: 07/06/2023] [Indexed: 07/26/2023]
Abstract
Childhood-onset systemic lupus erythematosus (cSLE) patients are unique, with hallmarks of Mendelian disorders (early-onset and severe disease) and thus are an ideal population for genetic investigation of SLE. In this study, we use the transmission disequilibrium test (TDT), a family-based genetic association analysis that employs robust methodology, to analyze whole genome sequencing data. We aim to identify novel genetic associations in an ancestrally diverse, international cSLE cohort. Forty-two cSLE patients and 84 unaffected parents from 3 countries underwent whole genome sequencing. First, we performed TDT with single nucleotide variant (SNV)-based (common variants) using PLINK 1.9, and gene-based (rare variants) analyses using Efficient and Parallelizable Association Container Toolbox (EPACTS) and rare variant TDT (rvTDT), which applies multiple gene-based burden tests adapted for TDT, including the burden of rare variants test. Applying the GWAS standard threshold (5.0 × 10-8) to common variants, our SNV-based analysis did not return any genome-wide significant SNVs. The rare variant gene-based TDT analysis identified many novel genes significantly enriched in cSLE patients, including HNRNPUL2, a DNA repair protein, and DNAH11, a ciliary movement protein, among others. Our approach identifies several novel SLE susceptibility genes in an ancestrally diverse childhood-onset lupus cohort.
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Affiliation(s)
- Kathleen M Vazzana
- Lupus Genomics and Global Health Disparities Unit, Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA
- Arnold Palmer Hospital for Children, Orlando, FL, USA
| | - Anthony M Musolf
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, MD, 22124, USA
| | - Joan E Bailey-Wilson
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, MD, 22124, USA
| | - Linda T Hiraki
- Division of Rheumatology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Earl D Silverman
- Division of Rheumatology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Christiaan Scott
- Paediatric Rheumatology, Red Cross War Memorial Children's Hospital and University of Cape Town, Cape Town, South Africa
| | - Clifton L Dalgard
- The American Genome Center, Department of Anatomy, Physiology & Genetics, Uniformed Services University, Bethesda, MD, USA
| | - Sarfaraz Hasni
- Clinical Program, Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Zuoming Deng
- Biodata Mining and Discovery Section, Office of Science and Technology, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Mariana J Kaplan
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Laura B Lewandowski
- Lupus Genomics and Global Health Disparities Unit, Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA.
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9
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Johnson D, Jiang W. Infectious diseases, autoantibodies, and autoimmunity. J Autoimmun 2023; 137:102962. [PMID: 36470769 PMCID: PMC10235211 DOI: 10.1016/j.jaut.2022.102962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 11/27/2022] [Indexed: 12/04/2022]
Abstract
Infections are known to trigger flares of autoimmune diseases in humans and serve as an inciting cause of autoimmunity in animals. Evidence suggests a causative role of infections in triggering antigen-specific autoimmunity, previous thought mainly through antigen mimicry. However, an infection can induce bystander autoreactive T and B cell polyclonal activation, believed to result in non-pathogenic and pathogenic autoimmune responses. Lastly, epitope spreading in autoimmunity is a mechanism of epitope changes of autoreactive cells induced by infection, promoting the targeting of additional self-epitopes. This review highlights recent research findings, emphasizes infection-mediated autoimmune responses, and discusses the possible mechanisms involved.
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Affiliation(s)
- Douglas Johnson
- Department of Microbiology and Immunology, Medical University of South Carolina, 173 Ashley Ave., Charleston, SC, USA; Ralph H. Johnson VA Medical Center, Charleston, SC, USA
| | - Wei Jiang
- Department of Microbiology and Immunology, Medical University of South Carolina, 173 Ashley Ave., Charleston, SC, USA; Ralph H. Johnson VA Medical Center, Charleston, SC, USA; Divison of Infectious Disease, Department of Medicine, Medical University of South Carolina, Charleston, SC, USA.
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10
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Fasano S, Milone A, Nicoletti GF, Isenberg DA, Ciccia F. Precision medicine in systemic lupus erythematosus. Nat Rev Rheumatol 2023; 19:331-342. [PMID: 37041269 DOI: 10.1038/s41584-023-00948-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2023] [Indexed: 04/13/2023]
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease that has diverse clinical manifestations, ranging from restricted cutaneous involvement to life-threatening systemic organ involvement. The heterogeneity of pathomechanisms that lead to SLE contributes to between-patient variation in clinical phenotype and treatment response. Ongoing efforts to dissect cellular and molecular heterogeneity in SLE could facilitate the future development of stratified treatment recommendations and precision medicine, which is a considerable challenge for SLE. In particular, some genes involved in the clinical heterogeneity of SLE and some phenotype-related loci (STAT4, IRF5, PDGF genes, HAS2, ITGAM and SLC5A11) have an association with clinical features of the disease. An important part is also played by epigenetic varation (in DNA methylation, histone modifications and microRNAs) that influences gene expression and affects cell function without modifying the genome sequence. Immune profiling can help to identify an individual's specific response to a therapy and can potentially predict outcomes, using techniques such as flow cytometry, mass cytometry, transcriptomics, microarray analysis and single-cell RNA sequencing. Furthermore, the identification of novel serum and urinary biomarkers would enable the stratification of patients according to predictions of long-term outcomes and assessments of potential response to therapy.
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Affiliation(s)
- Serena Fasano
- Rheumatology Unit, Department of Precision Medicine, Università Degli Studi Della Campania "Luigi Vanvitelli", Naples, Italy.
| | - Alessandra Milone
- Rheumatology Unit, Department of Precision Medicine, Università Degli Studi Della Campania "Luigi Vanvitelli", Naples, Italy
| | - Giovanni Francesco Nicoletti
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, Università Degli Studi Della Campania "Luigi Vanvitelli", Naples, Italy
| | - David A Isenberg
- Department of Rheumatology, Division of Medicine, University College London, London, UK
| | - Francesco Ciccia
- Rheumatology Unit, Department of Precision Medicine, Università Degli Studi Della Campania "Luigi Vanvitelli", Naples, Italy.
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11
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Penev B, Vasilev G, Todorova EI, Tumangelova-Yuzeir K, Kurteva E, Monov S, Kyurkchiev D. First-degree relatives of patients with systemic lupus erythematosus: Autoreactivity but not autoimmunity? Int J Rheum Dis 2023; 26:907-916. [PMID: 36942901 DOI: 10.1111/1756-185x.14669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 01/28/2023] [Accepted: 03/02/2023] [Indexed: 03/23/2023]
Abstract
BACKGROUND Systemic lupus erythematosus (SLE) is a disorder with a complex immunopathogenesis. It is well known that the disease begins with immunological alterations and autoantibody appearance in the serum years before clinical onset. As SLE has a strong tendency to familial aggregation, first-degree relatives (FDRs) constitute a group at elevated risk. The current understanding is that external risk factors trigger underlying immune dysregulations, leading to overt disease in those with elevated genetic risk. OBJECTIVE This cross-sectional study investigates the degree to which clinical features, external risk factors, and immunological profiles differ in SLE FDRs from healthy individuals and SLE patientts. METHODS Three groups were studied: Lupus patient FDRs (n = 56), healthy controls (n = 20), and SLE patients (n = 20). FDRs and healthy participants completed a detailed clinical questionnaire that included questions regarding smoking and estrogen drug history. All participants were tested for the presence of the following antinuclear autoantibodies (ANAs) against: nRNP/Sm, Sm, Ro60, Ro-52, La, Scl-70, PM-Scl, PM- Scl, Jo-1, CENP B, PCNA, dsDNA, nucleosomes, histones, RibP, AMA M2, DFS70, and eight soluble cytokines, including transforming growth factor-β (TGF-β), vitamin D levels, and antibodies against Epstein-Barr virus (EBV). RESULTS Compared with the healthy controls, FDRs had higher titers of ANA, more specific staining immunofluorescent patterns, and more autoantibody specificities. Furthermore, FDRs differed significantly in their TGF-β levels from the other two groups. In FDRs, some clinical features (hair loss, skin, and oral ulcer-like lesions) were associated with higher ANA titers and some (oral ulcer-like lesions) with the anti-Ro60-specific antibody. Interestingly, there was an association between ANA titers and levels of antibodies against EBV only in the FDR group. CONCLUSION First-degree relatives display unique clinical and immunological profiles, placing them between healthy individuals and SLE patients, with a balance between compensated immune dysregulation and disease-developing potential. A possible association between ANA titer and the number of clinical complaints is observed, which needs to be confirmed in more extensive studies.
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Affiliation(s)
- Bogdan Penev
- Internal Medicine and Therapy Department, Medical Institute of Ministry of Interior, Sofia, Bulgaria
| | - Georgi Vasilev
- Laboratory of Clinical Immunology, "St Ivan Rilski" University Hospital, Sofia, Bulgaria
- Department of Clinical Immunology, Medical University of Sofia, Sofia, Bulgaria
| | - Ekaterina Ivanova Todorova
- Laboratory of Clinical Immunology, "St Ivan Rilski" University Hospital, Sofia, Bulgaria
- Department of Clinical Immunology, Medical University of Sofia, Sofia, Bulgaria
| | - Kalina Tumangelova-Yuzeir
- Laboratory of Clinical Immunology, "St Ivan Rilski" University Hospital, Sofia, Bulgaria
- Department of Clinical Immunology, Medical University of Sofia, Sofia, Bulgaria
| | - Ekaterina Kurteva
- Laboratory of Clinical Immunology, "St Ivan Rilski" University Hospital, Sofia, Bulgaria
- Department of Clinical Immunology, Medical University of Sofia, Sofia, Bulgaria
| | - Simeon Monov
- Rheumatology Department, "St Ivan Rilski" University Hospital, Sofia, Bulgaria
- Internal Medicine Department, Medical University of Sofia, Sofia, Bulgaria
| | - Dobroslav Kyurkchiev
- Laboratory of Clinical Immunology, "St Ivan Rilski" University Hospital, Sofia, Bulgaria
- Department of Clinical Immunology, Medical University of Sofia, Sofia, Bulgaria
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12
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Colmenares-Roa T, Gastelum-Strozzi A, Crosley E, Fuentes-Silva Y, Reategui-Sokolova C, Elera-Fitzcarrald C, Ibañez S, Cairoli E, Pons-Estel BA, Drenkard C, Peláez-Ballestas I. Digital Narratives of Living With Lupus: Lived Experiences and Meanings for Latin American and Latino Patients and Their Families. Arthritis Care Res (Hoboken) 2023; 75:540-549. [PMID: 35188345 DOI: 10.1002/acr.24870] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 01/20/2022] [Accepted: 02/17/2022] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Systemic lupus erythematosus (SLE) disproportionately affects Latin American and Latino populations, with worse outcomes compared to nonminority populations. Understanding patients' views is critical to provide culturally competent care. The objective of this research is to analyze lived experiences with SLE from comments made by Latin American and Latino patients, and their relatives and friends, on the public Facebook group "Hablemos de Lupus" (in English: "Let's Talk about Lupus"). METHODS Deidentified narratives posted as a reaction to the most popular resources shared by the page were extracted using the Facepager application. We conducted a thematic analysis under an interpretative medical anthropology framework. RESULTS Five core themes were demonstrated by social media comments: lived experiences with lupus, religious/spiritual thoughts, metaphors, heredity, and experiences of family and friends. Being diagnosed with lupus is perceived as a life-changing event. The fluctuating course of the disease causes uncertainty, and the perception of invisibility within the patient's social circle generates feelings of being misunderstood. Faith and spiritual thoughts are coping strategies. Patients use metaphors about the disease's meaning and their lived experiences (the purple butterfly, not belonging, bellicose metaphors) to communicate with others. Relatives and friends are impacted by their loved one's distress. CONCLUSION Patients perceive lupus as an unpredictable illness and use metaphors to foster empathy and communicate their experiences to others. Religion is as important as medical treatment to cope with the disease, and the experience of having lupus extends to family and friends. Findings can be used to improve physician-patient communication and lupus education campaigns in the Latin American and Latino population.
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Affiliation(s)
| | | | | | | | | | | | | | - Ernesto Cairoli
- Centro Asistencial del Sindicato Médico del Uruguay and Hospital Evangélico and Institut Pasteur de Montevideo, Montevideo, Uruguay
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13
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Harsini S, Rezaei N. Autoimmune diseases. Clin Immunol 2023. [DOI: 10.1016/b978-0-12-818006-8.00001-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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14
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Lin PC, Liang CS, Tsai CK, Tsai SJ, Chen TJ, Bai YM, Chen MH. Associations of a family history of lupus with the risks of lupus and major psychiatric disorders in first-degree relatives. QJM 2022; 115:813-821. [PMID: 35758635 DOI: 10.1093/qjmed/hcac153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/19/2022] [Accepted: 06/20/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Genetic factors link psychiatric disorders, particularly major depressive disorder (MDD), bipolar disorder, and obsessive-compulsive disorder (OCD), with systemic lupus erythematosus (SLE). Additionally, maternal SLE is a risk factor for long-term developmental problems, particularly learning disabilities, attention disorders, autism spectrum disorder (ASD) and speech disorders, in children. AIM We aimed to determine whether first-degree relatives (FDRs) of patients with SLE have increased risks of SLE and major psychiatric disorders. DESIGN AND METHODS Using the Taiwan National Health Insurance Research Database, we recruited 40 462 FDRs of patients with SLE as well as 161 848 matched controls. The risks of major psychiatric disorders, including schizophrenia, bipolar disorder, OCD, MDD, ASD and attention-deficit/hyperactivity disorder (ADHD), were assessed. RESULTS The FDRs of patients with SLE had higher risks of SLE (reported as the adjusted relative risk and 95% confidence interval: 14.54; 12.19-17.34), MDD (1.23; 1.12-1.34), ADHD (1.60; 1.55-1.65), OCD (1.41; 1.14-1.74) and bipolar disorder (1.18; 1.01-1.38) compared with controls. Specifically, male FDRs of patients with SLE had higher risks of SLE and bipolar disorder, whereas female FDRs of patients with SLE had higher risks of MDD and OCD. Differences in the familial relationship (i.e. parents, children, siblings and twins) were consistently associated with higher risks of these disorders compared with controls. CONCLUSIONS The FDRs of patients with SLE had higher risks of SLE, MDD, ADHD, OCD and bipolar disorder than the controls.
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Affiliation(s)
- P-C Lin
- From the Beitou Branch, Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, No. 60, Xinmin Rd., Beitou Dist., Taipei City 11243, Taiwan
| | - C-S Liang
- From the Beitou Branch, Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, No. 60, Xinmin Rd., Beitou Dist., Taipei City 11243, Taiwan
| | - C-K Tsai
- Department of Neurology, Tri-Service General Hospital, National Defense Medical Center, No. 325, Sec. 2, Chenggong Rd., Neihu Dist., Taipei City 11490, Taiwan
| | - S-J Tsai
- Department of Psychiatry, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou Dist., Taipei City 11217, Taiwan
- Department of Psychiatry, College of Medicine, National Yang-Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Beitou Dist., Taipei City 11221, Taiwan
- Institute of Brain Sciences, National Yang-Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Beitou Dist., Taipei City 11221, Taiwan
| | - T-J Chen
- Department of Family Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou Dist., Taipei City 11217, Taiwan
- Institute of Hospital and Health Care Administration, National Yang-Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Beitou Dist., Taipei City 11221, Taiwan
- Digital Medicine Center, National Yang-Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Beitou Dist., Taipei City 11221, Taiwan
| | - Y-M Bai
- Department of Psychiatry, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou Dist., Taipei City 11217, Taiwan
- Department of Psychiatry, College of Medicine, National Yang-Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Beitou Dist., Taipei City 11221, Taiwan
- Institute of Brain Sciences, National Yang-Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Beitou Dist., Taipei City 11221, Taiwan
| | - M-H Chen
- Department of Psychiatry, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Beitou Dist., Taipei City 11217, Taiwan
- Department of Psychiatry, College of Medicine, National Yang-Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Beitou Dist., Taipei City 11221, Taiwan
- Institute of Brain Sciences, National Yang-Ming Chiao Tung University, No. 155, Sec. 2, Linong St., Beitou Dist., Taipei City 11221, Taiwan
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15
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Ohmes J, Comdühr S, Akbarzadeh R, Riemekasten G, Humrich JY. Dysregulation and chronicity of pathogenic T cell responses in the pre-diseased stage of lupus. Front Immunol 2022; 13:1007078. [PMID: 36389689 PMCID: PMC9650673 DOI: 10.3389/fimmu.2022.1007078] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 10/18/2022] [Indexed: 08/10/2023] Open
Abstract
In the normal immune system, T cell activation is tightly regulated and controlled at several levels to ensure that activation occurs in the right context to prevent the development of pathologic conditions such as autoimmunity or other harmful immune responses. CD4+FoxP3+ regulatory T cells (Treg) are crucial for the regulation of T cell responses in the peripheral lymphatic organs and thus for the prevention and control of autoimmunity. In systemic lupus erythematosus (SLE), a prototypic systemic autoimmune disease with complex etiology, a disbalance between Treg and pathogenic effector/memory CD4+ T cells develops during disease progression indicating that gradual loss of control over T cell activation is an important event in the immune pathogenesis. This progressive failure to adequately regulate the activation of autoreactive T cells facilitates chronic activation and effector/memory differentiation of pathogenic T cells, which are considered to contribute significantly to the induction and perpetuation of autoimmune processes and tissue inflammation in SLE. However, in particular in humans, little is known about the factors which drive the escape from immune regulation and the chronicity of pathogenic T cell responses in an early stage of autoimmune disease when clinical symptoms are still unapparent. Here we briefly summarize important findings and discuss current views and models on the mechanisms related to the dysregulation of T cell responses which promotes chronicity and pathogenic memory differentiation with a focus on the early stage of disease in lupus-prone individuals.
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16
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Yang J, Li C, Chi S, Wei H, Du W, Hu Q. Upregulation of microRNA-762 suppresses the expression of GIPC3 in systemic lupus erythematosus and neuropsychiatric systemic lupus erythematosus. Immun Inflamm Dis 2022; 10:e719. [PMID: 36301034 PMCID: PMC9552983 DOI: 10.1002/iid3.719] [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: 06/20/2022] [Revised: 08/16/2022] [Accepted: 09/15/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Systemic lupus erythematosus (SLE), especially neuropsychiatric SLE (NPSLE), is a complex systemic autoimmune disease, characterized by variable course and multiple organ dysfunction. Our study aimed to identify crucial microRNA (miRNAs) in SLE and NPSLE. METHODS Totally 12 cases of serum specimens were collected from General Hospital of Ningxia Medical University (SLE = 4, NPSLE = 4, control = 4). After miRNA sequencing, differential expression analysis, miRNA target prediction, and miRNA-messenger RNA (mRNA) regulatory network construction were performed to identify the hub miRNAs. The expression of target gene was determined by quantitative reverse transcription-polymerase chain reaction and Western blot. RESULTS There were 79 and 59 differentially expressed miRNAs (DEmiRNAs) in NPSLE versus Control, and SLE versus Control, respectively. Among 35 overlapped DEmiRNAs, 5 upregulated miRNAs' (hsa-miR-762, hsa-miR-4270, hsa-miR-3663-3p, hsa-miR-4778-5p, and hsa-miR-4516) target genes were supported by at least six databases. The miRNA-mRNA network indicated that core miRNA hsa-miR-762 regulated 1270 target genes. MiR-762 was significantly upregulated in SLE and NPSLE, and over expression of miR-762 significantly suppressed GIPC PDZ domain containing family member 3 (GIPC3) expression in SLE and NPSLE. CONCLUSIONS Upregulation of hub miRNA miR-762 can suppress the expression of GIPC3 in both SLE and NPSLE samples, which is probably involved in the development of SLE and NPSLE. Meanwhile, along with the development from SLE to NPSLE, miR-762 exhibits higher expression.
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Affiliation(s)
- Jijuan Yang
- Department of RheumatologyGeneral Hospital of Ningxia Medical UniversityYinchuanNingxiaP.R.China
| | - Chun Li
- Department of NursingXingtai Medical CollegeXingtaiHebeiP.R.China
| | - Shuhong Chi
- Department of RheumatologyGeneral Hospital of Ningxia Medical UniversityYinchuanNingxiaP.R.China
| | - Hongliang Wei
- Department of EmergencyThe First People's Hospital of YinchuanYinchuanNingxiaP.R.China
| | - Wenqing Du
- Department of RheumatologyGeneral Hospital of Ningxia Medical UniversityYinchuanNingxiaP.R.China
| | - Qikuan Hu
- Department of PhysiologyNingxia Medical UniversityYinchuanNingxiaP.R.China,Ningxia Key Laboratory of Cerebrocranial Disease, Basic Medical School of Ningxia Medical UniversityYinchuanNingxiaP.R.China
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17
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Cognitive dysfunction in SLE: An understudied clinical manifestation. J Autoimmun 2022; 132:102911. [PMID: 36127204 DOI: 10.1016/j.jaut.2022.102911] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 08/31/2022] [Indexed: 11/22/2022]
Abstract
Neuropsychiatric lupus (NPSLE) is a debilitating manifestation of SLE which occurs in a majority of SLE patients and has a variety of clinical manifestations. In the central nervous system, NPSLE may result from ischemia or penetration of inflammatory mediators and neurotoxic antibodies through the blood brain barrier (BBB). Here we focus on cognitive dysfunction (CD) as an NPSLE manifestation; it is common, underdiagnosed, and without specific therapy. For a very long time, clinicians ignored cognitive dysfunction and researchers who might be interested in the question struggled to find an approach to understanding mechanisms for this manifestation. Recent years, however, propelled by a more patient-centric approach to disease, have seen remarkable progress in our understanding of CD pathogenesis. This has been enabled through the use of novel imaging modalities and numerous mouse models. Overall, these studies point to a pivotal role of an impaired BBB and microglial activation in leading to neuronal injury. These insights suggest potential therapeutic modalities and make possible clinical trials for cognitive impairment.
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18
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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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19
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Villalvazo P, Carriazo S, Rojas-Rivera J, Ramos AM, Ortiz A, Perez-Gomez MV. Gain-of-function TLR7 and loss-of-function A20 gene variants identify a novel pathway for Mendelian lupus and lupus nephritis. Clin Kidney J 2022; 15:1973-1980. [PMID: 36324999 PMCID: PMC9613427 DOI: 10.1093/ckj/sfac152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Indexed: 11/25/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a chronic and inflammatory autoimmune disease of unknown origin that may cause kidney disease, i.e. lupus nephritis (LN). Within a wider trend towards an expanding field of genetic causes of kidney disease, two recent reports have emphasized the role of Mendelian autoimmune disorders in causing LN both in children and in young adults. Loss-of-function (LOF) variants of tumor necrosis factor alpha–induced protein 3 (TNFAIP3) and gain of function (GOF) variants of Toll-like receptor 7 (TLR7) cause SLE and LN, respectively. Interestingly, both genes regulate the same signaling route, as A20, the protein encoded by TNFAIP3, inhibits nuclear factor ĸB (NF-ĸB) activation while TLR7 promoted NF-ĸB activation. Moreover, TNFAIP3 and TLR7 variants are relatively frequent, potentially contributing to polygenic risk for LN. Finally, they both may be expressed by kidney cells, potentially contributing to the severity of kidney injury in persons who have already developed autoimmunity. The fact that both genes regulate the same pathway may lead to novel therapeutic approaches targeting the shared molecular pathway.
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Affiliation(s)
- Priscila Villalvazo
- Department of Nephrology and Hypertension , IIS-Fundacion Jimenez Diaz UAM, Madrid , Spain
| | - Sol Carriazo
- Department of Nephrology and Hypertension , IIS-Fundacion Jimenez Diaz UAM, Madrid , Spain
- RICORS2040 ; Madrid , Spain
- Departamento de Medicina, Facultad de Medicina, Universidad Autónoma de Madrid , Madrid , Spain
| | - Jorge Rojas-Rivera
- Department of Nephrology and Hypertension , IIS-Fundacion Jimenez Diaz UAM, Madrid , Spain
- RICORS2040 ; Madrid , Spain
| | - Adrián M Ramos
- Department of Nephrology and Hypertension , IIS-Fundacion Jimenez Diaz UAM, Madrid , Spain
- RICORS2040 ; Madrid , Spain
| | - Alberto Ortiz
- Department of Nephrology and Hypertension , IIS-Fundacion Jimenez Diaz UAM, Madrid , Spain
- RICORS2040 ; Madrid , Spain
- Departamento de Medicina, Facultad de Medicina, Universidad Autónoma de Madrid , Madrid , Spain
| | - Maria Vanessa Perez-Gomez
- Department of Nephrology and Hypertension , IIS-Fundacion Jimenez Diaz UAM, Madrid , Spain
- RICORS2040 ; Madrid , Spain
- Departamento de Medicina, Facultad de Medicina, Universidad Autónoma de Madrid , Madrid , Spain
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20
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Mahmoudi Z, Karamali N, Roghani SA, Assar S, Pournazari M, Soufivand P, Salari F, Rezaiemanesh A. Efficacy of DMARDs and methylprednisolone treatment on the gene expression levels of HSPA5, MMD, and non-coding RNAs MALAT1, H19, miR-199a-5p, and miR-1-3p, in patients with rheumatoid arthritis. Int Immunopharmacol 2022; 108:108878. [PMID: 35623291 DOI: 10.1016/j.intimp.2022.108878] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/13/2022] [Accepted: 05/17/2022] [Indexed: 01/09/2023]
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a systemic autoimmune disease with chronic inflammation characterized by joint damage and even extra-articular involvement. In this study, the gene expression levels of MALAT1, H19 and their possible downstream microRNAs, miR-199a-5p, miR-1-3p, and the predicted targets of these miRNAs, HSPA5 and MMD, were examined. METHODS Twenty-five newly diagnosed RA patients and 25 healthy individuals were included. For six months, patients were treated with conventional disease-modifying antirheumatic drugs (DMARDs) and Methylprednisolone (mPRED). Blood samples were obtained from healthy controls and patients (before and after treatment). After RNA extraction, the RT-qPCR technique was used to evaluate the expression level of the studied genes. RESULTS Data showed that the expression level of MALAT1, H19, miR-199a-5p, and miR-1-3p was significantly higher in the newly diagnosed patients with RA than the healthy subjects, but the increase in the expression level of HSPA5 and MMD genes in the new cases was not significant compared to healthy controls. After treatment, except for the expression level of lncRNAs, the expression level of miRNAs, HSPA5, and MMD significantly increased. Based on ROC curve analysis of MALAT1, H19, miR-199a-5p and miR-1-3p have a high ability to identify patients from healthy individuals (AUC = 0.986, AUC = 0.995, AUC = 0.855, AUC = 0.675, respectively). CONCLUSION MALAT1 and H19 may be candidates as potential biomarkers for the discrimination between RA patients and controls. DMARDs plus mPRED therapy do not have a desirable effect on reducing inflammatory responses and ER stress.
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Affiliation(s)
- Zahra Mahmoudi
- Student Research Committee, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran; Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Negin Karamali
- Student Research Committee, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran; Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Seyed Askar Roghani
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran; Clinical Research Development Center, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Shirin Assar
- Clinical Research Development Center, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mehran Pournazari
- Clinical Research Development Center, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Parviz Soufivand
- Clinical Research Development Center, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Farhad Salari
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Alireza Rezaiemanesh
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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21
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Peng Y, Chen B, Sheng X, Qian Y. The Genetic Association Between TLR-1, -2, -4, and -6 Gene Polymorphisms and Rheumatoid Arthritis Susceptibility in a Chinese Han Population. Genet Test Mol Biomarkers 2022; 26:140-145. [PMID: 35254871 DOI: 10.1089/gtmb.2021.0207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Aims: The toll-like receptor (TLR) genes were shown to be involved in the pathogenesis of rheumatoid arthritis (RA). We aimed to investigate the genetic associations between the TLR-1, -2, -4, and -6 genes polymorphisms and RA susceptibility in a Chinese Han population. Methods: Six polymorphisms [TLR-1 (rs5743610, rs5743618), -2 (rs5743708), -4 (rs4986790, rs4986791), and -6 (rs5743810)] in TLRs genes were genotyped in 360 patients with RA and 560 matched healthy controls by using direct sequencing method. The odds ratios (ORs) and 95% confidence intervals (CIs) were evaluated using a standard logistic regression analysis. Results: No significant association between the allelic, dominant, and recessive models of TLR-1 rs5743610, TLR-2 rs5743708, TLR-4 rs4986790 and rs4986791, and TLR-6 rs5743810 polymorphisms and RA risk was observed (p > 0.05). However, significant associations were detected between the allelic, dominant, and recessive models of TLR-1 rs5743618 and RA risk (allelic: OR [95% CI] = 2.21 [1.73-2.81], p < 0.0001; dominant: OR [95% CI] = 2.33 [1.75-3.09], p < 0.0001; recessive models: OR [95% CI] = 3.70 [1.85-7.41], p = 0.0002). In addition, the TLR6 rs5743810 was found to be associated with the rheumatoid factor (RF)- and anticyclic citrullinated peptide (anti-CCP)- antibody in RA group (RF: OR [95% CI] = 2.29 [1.42-3.69], p = 0.0007; anti-CCP: OR [95% CI] = 2.33 [1.39-3.89], p = 0.001). Conclusions: The allelic, dominant, and recessive models of TLR1 rs5743618 might be associated with RA susceptibility. Also, the TLR6 rs5743810 might be associated with RF and anti-CCP antibody of RA in Chinese Han population.
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Affiliation(s)
- Yuqin Peng
- Department of Orthopaedics, Changshu Hospital Affiliated to Soochow University, Changshu No.1 People's Hospital, Changshu, China
| | - Bingqian Chen
- Department of Orthopaedics, Changshu Hospital Affiliated to Soochow University, Changshu No.1 People's Hospital, Changshu, China
| | - Xiaowen Sheng
- Department of Orthopaedics, Changshu Hospital Affiliated to Soochow University, Changshu No.1 People's Hospital, Changshu, China
| | - Yufeng Qian
- Department of Orthopaedics, Changshu Hospital Affiliated to Soochow University, Changshu No.1 People's Hospital, Changshu, China
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22
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Harley IT, Sawalha AH. Systemic lupus erythematosus as a genetic disease. Clin Immunol 2022; 236:108953. [PMID: 35149194 PMCID: PMC9167620 DOI: 10.1016/j.clim.2022.108953] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 02/03/2022] [Accepted: 02/03/2022] [Indexed: 12/12/2022]
Abstract
Systemic lupus erythematosus is the prototypical systemic autoimmune disease, as it is characterized both by protean multi-organ system manifestations and by the uniform presence of pathogenic autoantibodies directed against components of the nucleus. Prior to the modern genetic era, the diverse clinical manifestations of SLE suggested to many that SLE patients were unlikely to share a common genetic risk basis. However, modern genetic studies have revealed that SLE usually arises when an environmental exposure occurs in an individual with a collection of genetic risk variants passing a liability threshold. Here, we summarize the current state of the field aimed at: (1) understanding the genetic architecture of this complex disease, (2) synthesizing how this genetic risk architecture impacts cellular and molecular disease pathophysiology, (3) providing illustrative examples that highlight the rich complexity of the pathobiology of this prototypical autoimmune disease and (4) communicating this complex etiopathogenesis to patients.
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Affiliation(s)
- Isaac T.W. Harley
- Division of Rheumatology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA,Human Immunology and Immunotherapy Initiative (HI3), Department of Immunology, University of Colorado School of Medicine, Aurora, CO, USA,Rocky Mountain Regional Veteran’s Administration Medical Center (VAMC), Medicine Service, Rheumatology Section, Aurora, CO, USA,Corresponding author at: Isaac TW Harley, MD, PhD, MS, Division of Rheumatology, University of Colorado Anschutz Medical Campus, Barbara Davis Center, Mail Stop B115, 1775 Aurora Court, Aurora, CO 80045, USA, (I.T.W. Harley)
| | - Amr H. Sawalha
- Division of Rheumatology, Department of Pediatrics, University of Pittsburgh School of Medicine, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, USA,Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA,Lupus Center of Excellence, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA,Corresponding author at: Amr H. Sawalha, MD, University of Pittsburgh, 7123 Rangos Research Center, 4401 Penn Avenue, Pittsburgh, PA 15224, USA, (A.H. Sawalha)
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23
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Fernandez-Ruiz R, Niewold TB. Type I Interferons in Autoimmunity. J Invest Dermatol 2022; 142:793-803. [PMID: 35016780 PMCID: PMC8860872 DOI: 10.1016/j.jid.2021.11.031] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 12/30/2022]
Abstract
Dysregulated IFN-1 responses play crucial roles in the development of multiple forms of autoimmunity. Many patients with lupus, systemic sclerosis, Sjogren's syndrome, and dermatomyositis demonstrate enhanced IFN-1 signaling. IFN-1 excess is associated with disease severity and autoantibodies and could potentially predict response to newer therapies targeting IFN-1 pathways. In this review, we provide an overview of the signaling pathway and immune functions of IFN-1s in health and disease. We also review the systemic autoimmune diseases classically associated with IFN-1 upregulation and current therapeutic strategies targeting the IFN-1 system.
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Affiliation(s)
- Ruth Fernandez-Ruiz
- Division of Rheumatology, Department of Medicine, NYU Grossman School of Medicine, New York, New York, USA
| | - Timothy B Niewold
- Judith & Stewart Colton Center for Autoimmunity, Department of Medicine Research, NYU Grossman School of Medicine, New York, New York, USA.
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24
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Abstract
The reality of life in modern times is that our internal circadian rhythms are often out of alignment with the light/dark cycle of the external environment. This is known as circadian disruption, and a wealth of epidemiological evidence shows that it is associated with an increased risk for cardiovascular disease. Cardiovascular disease remains the top cause of death in the United States, and kidney disease in particular is a tremendous public health burden that contributes to cardiovascular deaths. There is an urgent need for new treatments for kidney disease; circadian rhythm-based therapies may be of potential benefit. The goal of this Review is to summarize the existing data that demonstrate a connection between circadian rhythm disruption and renal impairment in humans. Specifically, we will focus on chronic kidney disease, lupus nephritis, hypertension, and aging. Importantly, the relationship between circadian dysfunction and pathophysiology is thought to be bidirectional. Here we discuss the gaps in our knowledge of the mechanisms underlying circadian dysfunction in diseases of the kidney. Finally, we provide a brief overview of potential circadian rhythm-based interventions that could provide benefit in renal disease.
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Affiliation(s)
- Rajesh Mohandas
- Department of Medicine, Division of Nephrology.,Center for Integrative Cardiovascular and Metabolic Diseases
| | | | - Yogesh Scindia
- Department of Medicine, Division of Nephrology.,Department of Medicine, Division of Pulmonary, Critical Care, and Sleep Medicine.,Department of Pathology, and
| | - Michelle L Gumz
- Department of Medicine, Division of Nephrology.,Center for Integrative Cardiovascular and Metabolic Diseases.,Department of Biochemistry and Molecular Biology.,Department of Physiology and Functional Genomics, University of Florida, Gainesville, Florida, USA
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25
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He Y, Gallman AE, Xie C, Shen Q, Ma J, Wolfreys FD, Sandy M, Arsov T, Wu X, Qin Y, Zhang P, Jiang S, Stanley M, Wu P, Tan J, Ding H, Xue H, Chen W, Xu J, Criswell LA, Nititham J, Adamski M, Kitching AR, Cook MC, Cao L, Shen N, Cyster JG, Vinuesa CG. P2RY8 variants in lupus patients uncover a role for the receptor in immunological tolerance. J Exp Med 2022; 219:e20211004. [PMID: 34889940 PMCID: PMC8669517 DOI: 10.1084/jem.20211004] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 08/26/2021] [Accepted: 11/18/2021] [Indexed: 12/30/2022] Open
Abstract
B cell self-tolerance is maintained through multiple checkpoints, including restraints on intracellular signaling and cell trafficking. P2RY8 is a receptor with established roles in germinal center (GC) B cell migration inhibition and growth regulation. Somatic P2RY8 variants are common in GC-derived B cell lymphomas. Here, we identify germline novel or rare P2RY8 missense variants in lupus kindreds or the related antiphospholipid syndrome, including a "de novo" variant in a child with severe nephritis. All variants decreased protein expression, F-actin abundance, and GPCR-RhoA signaling, and those with stronger effects increased AKT and ERK activity and cell migration. Remarkably, P2RY8 was reduced in B cell subsets from some SLE patients lacking P2RY8 gene variants. Low P2RY8 correlated with lupus nephritis and increased age-associated B cells and plasma cells. By contrast, P2RY8 overexpression in cells and mice restrained plasma cell development and reinforced negative selection of DNA-reactive developing B cells. These findings uncover a role of P2RY8 in immunological tolerance and lupus pathogenesis.
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MESH Headings
- Animals
- Antiphospholipid Syndrome/genetics
- Antiphospholipid Syndrome/immunology
- Antiphospholipid Syndrome/metabolism
- B-Lymphocyte Subsets/immunology
- B-Lymphocyte Subsets/metabolism
- Cell Line, Tumor
- Female
- HEK293 Cells
- Humans
- Immune Tolerance/genetics
- Immune Tolerance/immunology
- Lupus Erythematosus, Systemic/genetics
- Lupus Erythematosus, Systemic/immunology
- Lupus Erythematosus, Systemic/metabolism
- Lupus Nephritis/genetics
- Lupus Nephritis/immunology
- Lupus Nephritis/metabolism
- Male
- Mice, Inbred C57BL
- Mutation, Missense/genetics
- Mutation, Missense/immunology
- Pedigree
- Plasma Cells/immunology
- Plasma Cells/metabolism
- Receptors, Purinergic P2Y/genetics
- Receptors, Purinergic P2Y/immunology
- Receptors, Purinergic P2Y/metabolism
- Signal Transduction/genetics
- Signal Transduction/immunology
- Mice
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Affiliation(s)
- Yuke He
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Antonia E. Gallman
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA
| | - Chengmei Xie
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qian Shen
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - Jianyang Ma
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Finn D. Wolfreys
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA
| | - Moriah Sandy
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA
| | - Todor Arsov
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - Xiaoqian Wu
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yuting Qin
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Pingjing Zhang
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Simon Jiang
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - Maurice Stanley
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - Philip Wu
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - Jingjing Tan
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - Huihua Ding
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Haiyan Xue
- Department of Pediatrics, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Chen
- Department of Pediatrics, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jinping Xu
- Department of Pediatrics, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Lindsey A. Criswell
- Russell/Engleman Rheumatology Research Center, Department of Medicine, University of California, San Francisco, San Francisco, CA
| | - Joanne Nititham
- Russell/Engleman Rheumatology Research Center, Department of Medicine, University of California, San Francisco, San Francisco, CA
| | - Marcin Adamski
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - A. Richard Kitching
- Centre for Personalised Immunology, Centre for Inflammatory Diseases, Monash University Department of Medicine, Clayton, Victoria, Australia
| | - Matthew C. Cook
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - Lanfang Cao
- Department of Pediatrics, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Nan Shen
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jason G. Cyster
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA
| | - Carola G. Vinuesa
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
- Francis Crick Institute, London, UK
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26
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Immunogenetics of Lupus Erythematosus. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1367:213-257. [DOI: 10.1007/978-3-030-92616-8_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Chung CW, Hsiao TH, Huang CJ, Chen YJ, Chen HH, Lin CH, Chou SC, Chen TS, Chung YF, Yang HI, Chen YM. Machine learning approaches for the genomic prediction of rheumatoid arthritis and systemic lupus erythematosus. BioData Min 2021; 14:52. [PMID: 34895289 PMCID: PMC8666017 DOI: 10.1186/s13040-021-00284-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 11/21/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) and systemic lupus erythematous (SLE) are autoimmune rheumatic diseases that share a complex genetic background and common clinical features. This study's purpose was to construct machine learning (ML) models for the genomic prediction of RA and SLE. METHODS A total of 2,094 patients with RA and 2,190 patients with SLE were enrolled from the Taichung Veterans General Hospital cohort of the Taiwan Precision Medicine Initiative. Genome-wide single nucleotide polymorphism (SNP) data were obtained using Taiwan Biobank version 2 array. The ML methods used were logistic regression (LR), random forest (RF), support vector machine (SVM), gradient tree boosting (GTB), and extreme gradient boosting (XGB). SHapley Additive exPlanation (SHAP) values were calculated to clarify the contribution of each SNPs. Human leukocyte antigen (HLA) imputation was performed using the HLA Genotype Imputation with Attribute Bagging package. RESULTS Compared with LR (area under the curve [AUC] = 0.8247), the RF approach (AUC = 0.9844), SVM (AUC = 0.9828), GTB (AUC = 0.9932), and XGB (AUC = 0.9919) exhibited significantly better prediction performance. The top 20 genes by feature importance and SHAP values included HLA class II alleles. We found that imputed HLA-DQA1*05:01, DQB1*0201 and DRB1*0301 were associated with SLE; HLA-DQA1*03:03, DQB1*0401, DRB1*0405 were more frequently observed in patients with RA. CONCLUSIONS We established ML methods for genomic prediction of RA and SLE. Genetic variations at HLA-DQA1, HLA-DQB1, and HLA-DRB1 were crucial for differentiating RA from SLE. Future studies are required to verify our results and explore their mechanistic explanation.
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Affiliation(s)
- Chih-Wei Chung
- Department of Information Management, National Taiwan University, Taipei, Taiwan
| | - Tzu-Hung Hsiao
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Chih-Jen Huang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yen-Ju Chen
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
- Division of Allergy, Immunology and Rheumatology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Hsin-Hua Chen
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
- Division of Allergy, Immunology and Rheumatology, Taichung Veterans General Hospital, Taichung, Taiwan
- Rong Hsing Research Center for Translational Medicine & Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ching-Heng Lin
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Seng-Cho Chou
- Department of Information Management, National Taiwan University, Taipei, Taiwan
| | - Tzer-Shyong Chen
- Department of Information Management, Tunghai University, Taichung, Taiwan
| | - Yu-Fang Chung
- Department of Electrical Engineering, Tunghai University, Taichung, Taiwan
| | - Hwai-I Yang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yi-Ming Chen
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan.
- Division of Allergy, Immunology and Rheumatology, Taichung Veterans General Hospital, Taichung, Taiwan.
- Rong Hsing Research Center for Translational Medicine & Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan.
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
- College of Medicine, National Chung Hsing University, 40227, Taichung City, Taiwan.
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28
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Ha E, Bae SC, Kim K. Recent advances in understanding the genetic basis of systemic lupus erythematosus. Semin Immunopathol 2021; 44:29-46. [PMID: 34731289 DOI: 10.1007/s00281-021-00900-w] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 10/14/2021] [Indexed: 12/22/2022]
Abstract
Systemic lupus erythematosus (SLE) is a polygenic chronic autoimmune disease leading to multiple organ damage. A large heritability of up to 66% is estimated in SLE, with roughly 180 reported susceptibility loci that have been identified mostly by genome-wide association studies (GWASs) and account for approximately 30% of genetic heritability. A vast majority of risk variants reside in non-coding regions, which makes it quite challenging to interpret their functional implications in the SLE-affected immune system, suggesting the importance of understanding cell type-specific epigenetic regulation around SLE GWAS variants. The latest genetic studies have been highly fruitful as several dozens of SLE loci were newly discovered in the last few years and many loci have come to be understood in systemic approaches integrating GWAS signals with other biological resources. In this review, we summarize SLE-associated genetic variants in both the major histocompatibility complex (MHC) and non-MHC loci, examining polygenetic risk scores for SLE and their associations with clinical features. Finally, variant-driven pathogenetic functions underlying genetic associations are described, coupled with discussion about challenges and future directions in genetic studies on SLE.
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Affiliation(s)
- Eunji Ha
- Department of Biology, Kyung Hee University, Seoul, Republic of Korea.,Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Sang-Cheol Bae
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea. .,Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea.
| | - Kwangwoo Kim
- Department of Biology, Kyung Hee University, Seoul, Republic of Korea. .,Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea.
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29
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Lea-Henry TN, Chuah A, Stanley M, Athanasopoulos V, Starkey MR, Christiadi D, Kitching AR, Cook MC, Andrews TD, Vinuesa CG, Walters GD, Jiang SH. Increased burden of rare variants in genes of the endosomal Toll-like receptor pathway in patients with systemic lupus erythematosus. Lupus 2021; 30:1756-1763. [PMID: 34266320 DOI: 10.1177/09612033211033979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To compare the frequency of rare variants in genes of the pathophysiologically relevant endosomal Toll-like receptor (eTLR) pathway and any quantifiable differences in variant rarity, predicted deleteriousness, or molecular proximity in patients with systemic lupus erythematosus (SLE) and healthy controls. PATIENTS AND METHODS 65 genes associated with the eTLR pathway were identified by literature search and pathway analysis. Using next generation sequencing techniques, these were compared in two randomised cohorts of patients with SLE (n = 114 and n = 113) with 197 healthy controls. Genetically determined ethnicity was used to normalise minor allele frequencies (MAF) for the identified genetic variants and these were then compared by their frequency: rare (MAF < 0.005), uncommon (MAF 0.005-0.02), and common (MAF >0.02). This was compared to the results for 65 randomly selected genes. RESULTS Patients with SLE are more likely to carry a rare nonsynonymous variant affecting proteins within the eTLR pathway than healthy controls. Furthermore, individuals with SLE are more likely to have multiple rare variants in this pathway. There were no differences in rarity, Combined Annotation Dependent Depletion (CADD) score, or molecular proximity for rare eTLR pathway variants. CONCLUSIONS Rare non-synonymous variants are enriched in patients with SLE in the eTLR pathway. This supports the hypothesis that SLE arises from several rare variants of relatively large effect rather than many common variants of small effect.
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Affiliation(s)
- Tom N Lea-Henry
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia
| | - Aaron Chuah
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia
| | - Maurice Stanley
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Canberra, ACT, Australia
| | - Vicki Athanasopoulos
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Canberra, ACT, Australia.,China Australia Centre for Personalised Immunology, Shanghai Renji Hospital, Jiao Tong University Shanghai, Huangpu Qu, China
| | - Malcolm R Starkey
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Daniel Christiadi
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Canberra, ACT, Australia
| | - A Richard Kitching
- Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Canberra, ACT, Australia.,Centre for Inflammatory Diseases, 439191Monash University Department of Medicine, Monash University Department of Medicine, Clayton, VIC, Australia.,Department of Nephrology, Monash Health, Clayton, VIC, Australia.,Department of Paediatric Nephrology. Monash Health, Clayton, VIC, Australia
| | - Matthew C Cook
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Canberra, ACT, Australia.,China Australia Centre for Personalised Immunology, Shanghai Renji Hospital, Jiao Tong University Shanghai, Huangpu Qu, China
| | - Thomas D Andrews
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia
| | - Carola G Vinuesa
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Canberra, ACT, Australia.,China Australia Centre for Personalised Immunology, Shanghai Renji Hospital, Jiao Tong University Shanghai, Huangpu Qu, China
| | - Giles D Walters
- Department of Renal Medicine, 34381Canberra Hospital, The Canberra Hospital, Garran, ACT, Australia
| | - Simon H Jiang
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Canberra, ACT, Australia.,China Australia Centre for Personalised Immunology, Shanghai Renji Hospital, Jiao Tong University Shanghai, Huangpu Qu, China.,Department of Renal Medicine, 34381Canberra Hospital, The Canberra Hospital, Garran, ACT, Australia
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30
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DNA glycosylase deficiency leads to decreased severity of lupus in the Polb-Y265C mouse model. DNA Repair (Amst) 2021; 105:103152. [PMID: 34186496 DOI: 10.1016/j.dnarep.2021.103152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 05/22/2021] [Accepted: 06/02/2021] [Indexed: 10/21/2022]
Abstract
The Polb gene encodes DNA polymerase beta (Pol β), a DNA polymerase that functions in base excision repair (BER) and microhomology-mediated end-joining. The Pol β-Y265C protein exhibits low catalytic activity and fidelity, and is also deficient in microhomology-mediated end-joining. We have previously shown that the PolbY265C/+ and PolbY265C/C mice develop lupus. These mice exhibit high levels of antinuclear antibodies and severe glomerulonephritis. We also demonstrated that the low catalytic activity of the Pol β-Y265C protein resulted in accumulation of BER intermediates that lead to cell death. Debris released from dying cells in our mice could drive development of lupus. We hypothesized that deletion of the Neil1 and Ogg1 DNA glycosylases that act upstream of Pol β during BER would result in accumulation of fewer BER intermediates, resulting in less severe lupus. We found that high levels of antinuclear antibodies are present in the sera of PolbY265C/+ mice deleted of Ogg1 and Neil1 DNA glycosylases. However, these mice develop significantly less severe renal disease, most likely due to high levels of IgM in their sera.
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Afifi N, El Bakry SA, Mohannad N, Bassyouni IH, Elezz NFA, El-Shazly R, Hussein SA. Clinical Features and Disease Damage Risk Factors in an Egyptian SLE Cohort: A Multicenter Study. Curr Rheumatol Rev 2021; 17:222-231. [PMID: 33243127 DOI: 10.2174/1573397116666201126161244] [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: 05/12/2020] [Revised: 08/08/2020] [Accepted: 09/15/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Systemic lupus erythematosus (SLE) has a variable natural history and clinical characteristics. OBJECTIVES This study aims to evaluate the clinical and immunological characteristics, and assess the disease accrual of an Egyptian SLE cohort. METHODS The study included 569 SLE patients who were collected from three different centers; demographic, laboratory data, cumulative manifestations, and comorbidities were assessed (characteristics at the time of diagnosis were recorded retrospectively, while current clinical data were recorded cross-sectionally). Evaluation of disease activity was done using Systemic Lupus Erythematosus Disease Activity Index score (SLEDAI) and damage by Systemic Lupus International Collaborative Clinics/American College of Rheumatology Damage Index (SDI). RESULTS The median age of patients at disease onset was 25.0±10.5 years, the median disease duration was 4.0 (6.5) years, the female to male ratio was (12.5:1), and the median SLEDAI was 12.0±14.0. Family history of SLE was noticed in 4%. Antinuclear antibody was positive in all patients and 86% had positive anti-double-stranded DNA. Arthritis/arthralgia was the most frequent presenting symptom (44%) followed by fever (39%). Along the disease course; alopecia was the most common clinical manifestation (76.1%), followed by constitutional symptoms (75.9%), and nephritis (65.7%). Three hundred and five patients encountered organ damage (SDI >1); kidney damage was the most frequent (32%), followed by cardiovascular damage (24.3%). Neutropenia, hypocomplementemia, arthritis, hypertension, longer disease duration, and higher disease activity were found to be independent risk factors for disease damage. CONCLUSIONS There are some diversities and similarities in our findings compared to the previously reported data. Arthritis is the most common presenting symptom, while alopecia is the most frequent clinical finding, and a higher prevalence of nephritis was reported. Renal damage is the most frequent outcome.
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Affiliation(s)
- Naglaa Afifi
- Internal Medicine Department, Division of Rheumatology, Ain Shams University, Cairo, Egypt
| | - Samah A El Bakry
- Internal Medicine Department, Division of Rheumatology, Ain Shams University, Cairo, Egypt
| | - Nevine Mohannad
- Internal Medicine Department, Division of Rheumatology, Alexandria University Hospitals, Alexandria, Egypt
| | - Iman H Bassyouni
- Rheumatology and Rehabilitation Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Nahla F Abou Elezz
- Community and Public Health Department Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Reem El-Shazly
- Rheumatology and Rehabilitation Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Safaa A Hussein
- Internal Medicine Department, Division of Rheumatology, Ain Shams University, Cairo, Egypt
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miR-183-5p Is a Potential Molecular Marker of Systemic Lupus Erythematosus. J Immunol Res 2021; 2021:5547635. [PMID: 34036107 PMCID: PMC8124875 DOI: 10.1155/2021/5547635] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/19/2021] [Accepted: 04/26/2021] [Indexed: 12/16/2022] Open
Abstract
Objective To investigate microRNA (miRNA) expression profiles in individuals with systemic lupus erythematosus (SLE) and identify the valuable miRNA biomarkers in diagnosing and monitoring SLE. Methods Next-generation sequencing (NGS) was performed to assess miRNA amounts in peripheral blood mononuclear cells (PBMCs) from four SLE cases and four healthy controls. Quantitative polymerase chain reaction (qPCR) was carried out for validating candidate miRNAs in 32 SLE cases and 32 healthy controls. In addition, receiver operating characteristic (ROC) curve analysis was completed to evaluate diagnostic performance. Finally, the associations of candidate miRNAs with various characteristics of SLE were analyzed. Results A total of 157 miRNAs were upregulated, and 110 miRNAs were downregulated in PBMCs from SLE cases in comparison to healthy controls, of which the increase of miR-183-5p and decrease of miR-374b-3p were validated by qPCR and both showed good diagnostic performance for SLE diagnosis. Besides, miR-183-5p expression levels displayed a positive association with SLE disease activity index (SLEDAI) and anti-dsDNA antibody amounts. Conclusion Our data indicated that miR-183-5p is a promising biomarker of SLE.
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Fichna M, Małecki PP, Gębarski B, Gębarska H, Ruchała M. Aggregation of autoimmunity in extended families of people with autoimmune Addison's disease. Intern Med J 2021; 52:1225-1231. [PMID: 33955139 DOI: 10.1111/imj.15337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 04/06/2021] [Accepted: 04/06/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Autoimmunity accounts for 90% of cases of primary adrenal insufficiency (Addison's disease, AD). Affected persons present a significant co-occurrence of autoimmune conditions, hence, clustering of autoimmunity is also predicted among their relatives. AIMS The aim of our study was to evaluate the burden of autoimmunity in families of people with AD. METHODS 116 individuals with AD were surveyed about the occurrence of 23 autoimmune diseases among their relatives. RESULTS 74.1% of persons with AD reported at least one relative with an autoimmune disorder - 257 cases were diagnosed in 221 relatives. Hashimoto's thyroiditis was found in 100 individuals, followed by Graves' disease and vitiligo - in 25 and 24 relatives, respectively. Type 1 diabetes was diagnosed in 23 relatives, psoriasis in 15, rheumatoid arthritis in 12, pernicious anaemia in 11, multiple sclerosis in 8, while premature menopause in 8 women. AD was found in 7 relatives, alopecia in 6, and celiac disease in 5. Other conditions were rare. Significant correlation was noticed between the number of autoimmune conditions in AD proband and the number of affected relatives (p = 0.031). 66.4% of people with AD had a first-degree relative suffering from autoimmunity. Autoimmune conditions were more frequent among females: sisters (p < 0.001), mothers (p = 0.002) and grandmothers (p = 0.002). CONCLUSIONS Considerable prevalence of autoimmune conditions in relatives of persons with AD confirms substantial risk of autoimmunity, especially in females and relatives of patients affected by multiplex autoimmunity. Our data corroborate the recommendation of active screening for autoimmune disorders, particularly thyroid disease, among AD family members. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Marta Fichna
- Department of Endocrinology, Metabolism and Internal Medicine, Poznań University of Medical Sciences, 49 Przybyszewskiego, 60-355, Poznań, Poland
| | - Piotr P Małecki
- Department of Endocrinology, Metabolism and Internal Medicine, Poznań University of Medical Sciences, 49 Przybyszewskiego, 60-355, Poznań, Poland
| | - Bolesław Gębarski
- Regional Outpatient Medical Centre, 31 Powstanców, 40-038, Katowice, Poland
| | - Helena Gębarska
- Faculty of Medicine, Wrocław Medical University, 1 Pasteura, 50-367, Wrocław, Poland
| | - Marek Ruchała
- Department of Endocrinology, Metabolism and Internal Medicine, Poznań University of Medical Sciences, 49 Przybyszewskiego, 60-355, Poznań, Poland
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Michailidou D, Khaki AR, Morelli MP, Diamantopoulos L, Singh N, Grivas P. Association of blood biomarkers and autoimmunity with immune related adverse events in patients with cancer treated with immune checkpoint inhibitors. Sci Rep 2021; 11:9029. [PMID: 33907229 PMCID: PMC8079370 DOI: 10.1038/s41598-021-88307-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 03/29/2021] [Indexed: 02/08/2023] Open
Abstract
Patients with cancer treated with immune checkpoint inhibitors (ICIs) develop immune related adverse events (irAEs), however biomarkers are lacking. We hypothesized that clinicopathologic and laboratory factors would be associated with irAE risk and overall survival (OS) in this population. In a retrospective study of patients treated with ICIs we collected clinicopathologic, laboratory, irAEs and outcomes data. The association between baseline blood biomarkers, clinicopathologic features and irAEs was assessed by logistic regression adjusting for age, sex, smoking, cancer type, performance status, concomitant other systemic therapy, history of autoimmune disease (AD), chronic infection and pre-existing systemic steroid use (regardless of dose). Optimal cutoff values of biomarkers were identified by recursive partitioning analysis. 470 patients were identified; 156 (33%) developed irAEs, which were associated with baseline absolute lymphocyte count > 2.6 k/ul (adjusted [a]OR: 4.30), absolute monocyte count > 0.29 k/ul (aOR: 2.34) and platelet count > 145 k/ul (aOR: 2.23), neutrophil to lymphocyte ratio (NLR) ≤ 5.3 (aOR: 2.07) and monocyte to lymphocyte ratio (MLR) ≤ 0.73 (aOR: 2.96), as well as platelet to lymphocyte ratio ≤ 534 (aOR: 5.05). Patients with pre-existing AD (aOR: 2.57), family history of AD (aOR: 5.98), and ICI combination (aOR: 2.00) had higher odds of irAEs. Baseline NLR ≤ 5.3 (aHR: 0.68), MLR ≤ 0.73 (aHR: 0.43), PLT > 145 (aHR: 0.48) and PLR ≤ 534 (aHR: 0.48) were associated with longer OS. irAEs were associated with autoimmune history, ICI combination and baseline laboratory measurements. Lower NLR, MLR and PLR may have favorable prognostic value. Our hypothesis-generating findings require validation in larger prospective studies.
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Affiliation(s)
- Despina Michailidou
- Division of Rheumatology, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Ali Raza Khaki
- Division of Medical Oncology, Department of Medicine, University of Washington, 1144 Eastlake Ave E, LG-465, Seattle, WA, 98109, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, 1144 Eastlake Ave E, LG-465, Seattle, WA, 98109, USA.,Seattle Cancer Care Alliance, 1144 Eastlake Ave E, LG-465, Seattle, WA, 98109, USA.,Division of Oncology, Department of Medicine, Stanford University, Palo Alto, CA, USA
| | - Maria Pia Morelli
- Gastrointestinal Medical Oncology, The University of Texas, MD Anderson Comprehensive Cancer Center, Houston, TX, USA
| | | | - Namrata Singh
- Division of Rheumatology, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Petros Grivas
- Division of Medical Oncology, Department of Medicine, University of Washington, 1144 Eastlake Ave E, LG-465, Seattle, WA, 98109, USA. .,Clinical Research Division, Fred Hutchinson Cancer Research Center, 1144 Eastlake Ave E, LG-465, Seattle, WA, 98109, USA. .,Seattle Cancer Care Alliance, 1144 Eastlake Ave E, LG-465, Seattle, WA, 98109, USA.
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Lu H, Zhang J, Jiang Z, Zhang M, Wang T, Zhao H, Zeng P. Detection of Genetic Overlap Between Rheumatoid Arthritis and Systemic Lupus Erythematosus Using GWAS Summary Statistics. Front Genet 2021; 12:656545. [PMID: 33815486 PMCID: PMC8012913 DOI: 10.3389/fgene.2021.656545] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 03/01/2021] [Indexed: 01/04/2023] Open
Abstract
Background Clinical and epidemiological studies have suggested systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) are comorbidities and common genetic etiologies can partly explain such coexistence. However, shared genetic determinations underlying the two diseases remain largely unknown. Methods Our analysis relied on summary statistics available from genome-wide association studies of SLE (N = 23,210) and RA (N = 58,284). We first evaluated the genetic correlation between RA and SLE through the linkage disequilibrium score regression (LDSC). Then, we performed a multiple-tissue eQTL (expression quantitative trait loci) weighted integrative analysis for each of the two diseases and aggregated association evidence across these tissues via the recently proposed harmonic mean P-value (HMP) combination strategy, which can produce a single well-calibrated P-value for correlated test statistics. Afterwards, we conducted the pleiotropy-informed association using conjunction conditional FDR (ccFDR) to identify potential pleiotropic genes associated with both RA and SLE. Results We found there existed a significant positive genetic correlation (rg = 0.404, P = 6.01E-10) via LDSC between RA and SLE. Based on the multiple-tissue eQTL weighted integrative analysis and the HMP combination across various tissues, we discovered 14 potential pleiotropic genes by ccFDR, among which four were likely newly novel genes (i.e., INPP5B, OR5K2, RP11-2C24.5, and CTD-3105H18.4). The SNP effect sizes of these pleiotropic genes were typically positively dependent, with an average correlation of 0.579. Functionally, these genes were implicated in multiple auto-immune relevant pathways such as inositol phosphate metabolic process, membrane and glucagon signaling pathway. Conclusion This study reveals common genetic components between RA and SLE and provides candidate associated loci for understanding of molecular mechanism underlying the comorbidity of the two diseases.
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Affiliation(s)
- Haojie Lu
- Department of Epidemiology and Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, China
| | - Jinhui Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, China
| | - Zhou Jiang
- Department of Epidemiology and Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, China
| | - Meng Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, China
| | - Ting Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, China.,Center for Medical Statistics and Data Analysis, School of Public Health, Xuzhou Medical University, Xuzhou, China
| | - Huashuo Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, China.,Center for Medical Statistics and Data Analysis, School of Public Health, Xuzhou Medical University, Xuzhou, China
| | - Ping Zeng
- Department of Epidemiology and Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, China.,Center for Medical Statistics and Data Analysis, School of Public Health, Xuzhou Medical University, Xuzhou, China
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Gómez-Puerta JA, Pons-Estel GJ, Quintana R, Nieto R, Serrano Morales RM, Harvey GB, Wojdyla D, Scolnik M, Funes Soaje C, Alba Moreyra P, Novatti E, Arizpe F, Berbotto GA, González Lucero L, Porta S, Pérez N, Rodriguez AM, Appenzeller S, de Oliveira E Silva Montadon AC, Monticielo OA, Cavalcanti FS, Machado Ribeiro F, Borba EF, Torres Dos Reis-Neto E, Neira O, Chahuán JM, Mimica M, Aroca Martínez G, Tobón GJ, Vásquez G, Quintana-Lopez G, Moreno Alvarez MJ, Saavedra MÁ, Cristobal MP, Fragoso-Loyo H, Amezcua-Guerra LM, González-Bello YC, Abud-Mendoza C, Esquivel-Valerio JA, Duarte M, Acosta Colman I, Mora-Trujillo C, Reátegui-Sokolova C, Calvo Quiroz AA, Muñoz-Louis R, Cairoli E, Rosas I, Rebella M, Cardiel MH, García de la Torre I, Catoggio LJ, Alarcón GS, Pons-Estel BA. A longitudinal multiethnic study of biomarkers in systemic lupus erythematosus: Launching the GLADEL 2.0 Study Group. Lupus 2021; 30:961203320988586. [PMID: 33509067 DOI: 10.1177/0961203320988586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Introduction: After more than 20 years of sustained work, the Latin American Group for the Study of Lupus (GLADEL) has made a significant number of contributions to the field of lupus, not only in the differential role that race/ethnicity plays in its course and outcome but also in several other studies including the beneficial effects of using antimalarials in lupus patients and the development of consensus guidelines for the treatment of lupus in our region. Methods: A new generation of "Lupus Investigators" in more than 40 centers throughout Latin America has been constituted in order to continue the legacy of the investigators of the original cohort and to launch a novel study of serum and urinary biomarkers in patients with systemic lupus erythematosus. Results: So far, we have recruited 807 patients and 631 controls from 42 Latin-American centers including 339 patients with SLE without renal involvement, 202 patients with SLE with prevalent but inactive renal disease, 176 patients with prevalent and active renal disease and 90 patients with incident lupus nephritis. Conclusions: The different methodological aspects of the GLADEL 2.0 cohort are discussed in this manuscript, including the challenges and difficulties of conducting such an ambitious project.
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Affiliation(s)
| | | | - Rosana Quintana
- Centro Regional de Enfermedades Autoinmunes y Reumáticas (GO-CREAR), Rosario, Argentina
| | - Romina Nieto
- Centro Regional de Enfermedades Autoinmunes y Reumáticas (GO-CREAR), Rosario, Argentina
| | | | - Guillermina B Harvey
- Escuela de Estadística, Facultad de Ciencias Económicas y Estadística, Universidad Nacional de Rosario, Rosario, Argentina
| | | | - Marina Scolnik
- Rheumatology Section, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Carmen Funes Soaje
- Servicio de Reumatología, Hospital Italiano de Córdoba, Córdoba, Argentina
| | - Paula Alba Moreyra
- Hospital Córdoba, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Elisa Novatti
- Servicio de Reumatología, Hospital Privado Universitario de Córdoba, Córdoba, Argentina
| | - Fernando Arizpe
- Servicio de Reumatología, HIGA San Martin de La Plata, Argentina
| | - Guillermo A Berbotto
- Servicio de Reumatología, Hospital Escuela "Eva Perón", Granadero Baigorria, Argentina
| | | | - Sabrina Porta
- Rheumatology Department, Hospital "José María Ramos Mejía", Buenos Aires, Argentina
| | - Nicolás Pérez
- Departamento de Inmunología, Instituto de Investigaciones Médicas "Alfredo Lanari", Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Anabella M Rodriguez
- Sección de Reumatología e Inmunología, Centro De Educación Médica e Investigaciones Clínicas, "Norberto Quirno" (CEMIC), Buenos Aires, Argentina
| | | | | | - Odirlei Andre Monticielo
- Rheumatology Division, Department of Internal Medicine, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Fernando S Cavalcanti
- Serviço de Reumatologia, Departamento de Medicina Clínica, Centro de Ciências Médicas, Hospital das Clínicas, Universidade Federal de Pernambuco, Pernambuco, Brazil
| | - Francinne Machado Ribeiro
- Rheumatology Division, Hospital Universitário Pedro Ernesto, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Eduardo F Borba
- Rheumatology Division, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | | | - Oscar Neira
- Sección de Reumatología, Hospital del Salvador, Universidad de Chile, Santiago, Chile
| | - José Miguel Chahuán
- Departamento de Inmunología Clínica y Reumatología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Milena Mimica
- Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebastián, Chile
| | - Gustavo Aroca Martínez
- Universidad Simón Bolívar, Barranquilla, Colombia
- Clínica de la Costa, Barranquilla, Colombia
| | - Gabriel J Tobón
- Unidad de Reumatología, Fundación Valle del Lili, Facultad de Medicina, Universidad ICESI, Cali, Colombia
| | - Gloria Vásquez
- Sección de Reumatología, Departamento de Medicina Interna/Grupo de Inmunología Celular e Inmunogenética, Facultad de Medicina, Universidad de Antioquía, Medellín, Colombia
| | - Gerardo Quintana-Lopez
- REUMAVANCE Group, Rheumatology Section, Department of Internal Medicine, Fundación Santa Fe de Bogotá, University Hospital, Bogotá, Colombia
- Department of Internal Medicine, School of Medicine, Universidad de Los Andes, Bogotá, Colombia
- Department of Internal Medicine, School of Medicine, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Mario J Moreno Alvarez
- Servicio Reumatología, Hospital "Luis Vernaza", Universidad de Especialidades Espíritu Santo, Guayaquil, Ecuador
| | - Miguel Ángel Saavedra
- Hospital de Especialidades "Dr. Antonio Fraga Mouret", Instituto Mexicano del Seguro Social, Ciudad de México, México
| | - Mario Pérez Cristobal
- Departamento de Reumatología, Hospital de Especialidades del Centro Médico Nacional Siglo XXI, del Instituto Mexicano del Seguro Social, Ciudad de México, México
| | - Hilda Fragoso-Loyo
- Departamento de Inmunología y Reumatología, Instituto Nacional Ciencias Medicas y Nutrición "Salvador Zubirán", Ciudad de México, México
| | - Luis M Amezcua-Guerra
- Departamento de Inmunología/Departamento de Reumatología, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, México
| | - Yelitza C González-Bello
- Centro de Estudios de Investigación Básica y Clínica, S.C., Departamento de Inmunología, Guadalajara, México
| | - Carlos Abud-Mendoza
- Unidad Regional de Reumatología, Hospital Central "Dr. Ignacio Morones Prieto", y Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Jorge A Esquivel-Valerio
- Servicio de Reumatología, Hospital Universitario "Dr, José Eleuterio González", Universidad Autónoma de Nuevo León, Monterrey, México
| | - Margarita Duarte
- Primera Cátedra de Clínica Médica, Facultad de Ciencias Medicas, Universidad Nacional de Asunción, Asunción, Paraguay
| | - Isabel Acosta Colman
- Departamento de Reumatología, Facultad de Ciencias Medicas, Universidad Nacional de Asunción, Asunción, Paraguay
| | - Claudia Mora-Trujillo
- Servicio de Reumatología, Departamento de Especialidades Médicas, Hospital Nacional "Edgardo Rebagliati Martins", Lima, Perú
| | | | | | | | - Ernesto Cairoli
- Unidad de Enfermedades Autoinmunes Sistémicas, Hospital Evangélico, Montevideo, Uruguay
- Unidad de Enfermedades Autoinmunes Sistémicas, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Iliana Rosas
- Instituto Nacional de Reumatología/Hospital Pasteur, Montevideo, Uruguay
| | - Martín Rebella
- Unidad de Enfermedades Autoinmunes de Médica Uruguaya Corporación de Asistencia Médica (MUCAM). Clínica Médica, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Mario H Cardiel
- Centro de Investigación Clínica de Morelia, SC, Morelia, México
| | - Ignacio García de la Torre
- Departamento de Inmunología y Reumatología, Hospital General de Occidente de la S.S. y Universidad de Guadalajara, Zapopan, Jalisco, México
| | - Luis J Catoggio
- Rheumatology Section, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Graciela S Alarcón
- Division of Clinical Immunology and Rheumatology, Department of Medicine, School of Medicine, The University of Alabama at Birmingham, Birmingham, USA
- Department of Medicine, School of Medicine, Universidad Peruana Cayetano, Heredia, Lima, Perú
| | - Bernardo A Pons-Estel
- Centro Regional de Enfermedades Autoinmunes y Reumáticas (GO-CREAR), Rosario, Argentina
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Owen KA, Price A, Ainsworth H, Aidukaitis BN, Bachali P, Catalina MD, Dittman JM, Howard TD, Kingsmore KM, Labonte AC, Marion MC, Robl RD, Zimmerman KD, Langefeld CD, Grammer AC, Lipsky PE. Analysis of Trans-Ancestral SLE Risk Loci Identifies Unique Biologic Networks and Drug Targets in African and European Ancestries. Am J Hum Genet 2020; 107:864-881. [PMID: 33031749 PMCID: PMC7675009 DOI: 10.1016/j.ajhg.2020.09.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 09/16/2020] [Indexed: 12/11/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a multi-organ autoimmune disorder with a prominent genetic component. Individuals of African ancestry (AA) experience the disease more severely and with an increased co-morbidity burden compared to European ancestry (EA) populations. We hypothesize that the disparities in disease prevalence, activity, and response to standard medications between AA and EA populations is partially conferred by genomic influences on biological pathways. To address this, we applied a comprehensive approach to identify all genes predicted from SNP-associated risk loci detected with the Immunochip. By combining genes predicted via eQTL analysis, as well as those predicted from base-pair changes in intergenic enhancer sites, coding-region variants, and SNP-gene proximity, we were able to identify 1,731 potential ancestry-specific and trans-ancestry genetic drivers of SLE. Gene associations were linked to upstream and downstream regulators using connectivity mapping, and predicted biological pathways were mined for candidate drug targets. Examination of trans-ancestral pathways reflect the well-defined role for interferons in SLE and revealed pathways associated with tissue repair and remodeling. EA-dominant genetic drivers were more often associated with innate immune and myeloid cell function pathways, whereas AA-dominant pathways mirror clinical findings in AA subjects, suggesting disease progression is driven by aberrant B cell activity accompanied by ER stress and metabolic dysfunction. Finally, potential ancestry-specific and non-specific drug candidates were identified. The integration of all SLE SNP-predicted genes into functional pathways revealed critical molecular pathways representative of each population, underscoring the influence of ancestry on disease mechanism and also providing key insight for therapeutic selection.
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MESH Headings
- B-Lymphocytes/immunology
- B-Lymphocytes/pathology
- Black People
- Bortezomib/therapeutic use
- DNA, Intergenic/genetics
- DNA, Intergenic/immunology
- Enhancer Elements, Genetic
- Gene Expression
- Gene Ontology
- Gene Regulatory Networks
- Genetic Predisposition to Disease
- Genome, Human
- Genome-Wide Association Study
- Heterocyclic Compounds/therapeutic use
- Humans
- Interferons/genetics
- Interferons/immunology
- Isoquinolines/therapeutic use
- Lactams
- Lupus Erythematosus, Systemic/drug therapy
- Lupus Erythematosus, Systemic/ethnology
- Lupus Erythematosus, Systemic/genetics
- Lupus Erythematosus, Systemic/immunology
- Molecular Sequence Annotation
- Polymorphism, Single Nucleotide
- Protein Array Analysis
- Quantitative Trait Loci
- Quantitative Trait, Heritable
- White People
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Affiliation(s)
| | - Andrew Price
- AMPEL BioSolutions LLC, Charlottesville, VA 22902, USA
| | | | | | | | | | | | | | | | | | | | - Robert D Robl
- AMPEL BioSolutions LLC, Charlottesville, VA 22902, USA
| | - Kip D Zimmerman
- Wake Forest School of Medicine, Winston-Salem, NC 27109, USA
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Yuan ZC, Xu WD, Lan YY, Wang JM, Wu Q, Zhou J, Huang AF. Association of MBL2 gene polymorphisms and systemic lupus erythematosus susceptibility: A meta-analysis. Int J Rheum Dis 2020; 24:147-158. [PMID: 33146461 DOI: 10.1111/1756-185x.14017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/19/2020] [Accepted: 10/14/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVES Mannose binding lectin (MBL) gene single nucleotide polymorphisms have been associated with systemic lupus erythematosus (SLE) risk with inconsistent results. This study aimed to explore whether MBL2 A\B, A\C, A\D, A\O, L\H and Y\X polymorphisms affected SLE susceptibility. METHODS A meta-analysis was performed on 20 studies, containing allelic contrast, additive, dominant and recessive models. Odds ratio (OR) was calculated to reflect the effect of association. RESULTS A total of 64 pooled comparisons were conducted, including 7194 SLE patients and 7401 healthy controls. The meta-analysis inducted a significant association between allele B and SLE (OR = 0.766, 95% CI = 0.681-0.862, P < .001). The genotype BB in the additive model and AB + BB in the recessive model both reduced the risk of SLE (OR = 0.611, 95% CI = 0.422-0.882, P = .009; OR = 0.806, 95% CI = 0.688-0.944, P = .008). Regarding A\O polymorphisms, results revealed statistical differences in allelic contrast, additive model and recessive models (OR = 0.826, 95% CI = 0.732-0.931, P = .002; OR = 0.737, 95% CI = 0.557-0.977, P = .034 and OR = 0.793, 95% CI = 0.683-0.921, P = .002, respectively). As for L\H, meta-analysis revealed that allele H and genotype HH both decreased SLE susceptibility in allelic contrast and dominant models (OR = 1.463, 95% CI = 1.097-2.007, P = .018; OR = 1.383, 95% CI = 1.124-1.701, P = .002). Stratification by ethnicity indicated that allele H related to SLE in European populations (OR = 0.736, 95% CI = 0.617-0.879, P = .001), and the recessive model correlated with SLE in Asians (OR = 0.808, 95% CI = 0.667-0.979, P = .03). CONCLUSION The present study suggests that A\B and A\O polymorphisms were associated with SLE susceptibility, and the allele H may be a protective factor in SLE.
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Affiliation(s)
- Zhi-Chao Yuan
- Department of Evidence-Based Medicine, School of Public Health, Southwest Medical University, Luzhou, China
| | - Wang-Dong Xu
- Department of Evidence-Based Medicine, School of Public Health, Southwest Medical University, Luzhou, China
| | - You-Yu Lan
- Department of Evidence-Based Medicine, School of Public Health, Southwest Medical University, Luzhou, China
| | - Jia-Min Wang
- Department of Evidence-Based Medicine, School of Public Health, Southwest Medical University, Luzhou, China
| | - Qian Wu
- Department of Evidence-Based Medicine, School of Public Health, Southwest Medical University, Luzhou, China
| | - Jie Zhou
- Department of Evidence-Based Medicine, School of Public Health, Southwest Medical University, Luzhou, China
| | - An-Fang Huang
- Department of Rheumatology and Immunology, Affiliated Hospital of Southwest Medical University, Luzhou, China
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Yuan ZC, Xu WD, Wang JM, Wu Q, Zhou J, Huang AF. Gene polymorphisms and serum levels of sVEGFR-1 in patients with systemic lupus erythematosus. Sci Rep 2020; 10:15031. [PMID: 32929141 PMCID: PMC7490265 DOI: 10.1038/s41598-020-72020-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 07/08/2020] [Indexed: 01/03/2023] Open
Abstract
Correlation between soluble vascular endothelial growth factor receptor-1 (sVEGFR-1) concentration, VEGFR1 gene polymorphisms and systemic lupus erythematosus (SLE) risk remains unclear. The present case–control study comprised 254 SLE patients, 385 other rheumatic diseases patients and 390 healthy controls. Serum levels of sVEGFR-1 were detected by enzyme-linked immunosorbent assay. Seven VEGFR1 genetic variants (rs2296188, rs9943922, rs2296283, rs7324510, rs9554322, rs9582036, rs9554320) were genotyped by KASP. Serum levels of sVEGFR-1 were up-regulated in SLE and positively correlated with disease activity. Furthermore, serum sVEGFR-1 presented a distinctive elevation in SLE in comparison with other rheumatic diseases. Frequencies of allele T of rs2296283 and allele G of rs9554322 were significant lower in SLE patients (P = 0.003, P = 0.004). Frequencies of genotypes TT of rs2296188 and rs2296283 were declined in patients compared with healthy controls (P = 0.039, P = 0.033). CC genotype of rs7324510 and rs9582036 was negatively correlated with SLE risk (OR = 0.538, OR = 0.508). Distribution of GG, GC, GG + GC genotypes of rs9554322 were different between SLE patients and healthy controls (P = 0.027, P = 0.036, P = 0.010). Moreover, frequency of TC genotype of rs7324510 was higher in SLE patients with lupus headache (χ2 = 9.924, P = 0.039) and frequency of TC genotype of rs9943922 was lower in patients with cylindruriain (χ2 = 7.589, P = 0.026). Frequencies of allele C of rs7324510 and allele T of rs9943922 were decreased in SLE patients with cylindruria and hypocomplementemia, respectively (χ2 = 4.195, P = 0.041, χ2 = 3.971, P = 0.046). However, frequency of allele C of rs9554322 was increased in SLE patients with pyuria (χ2 = 11.702, P = 0.001). In addition, SLE patients carrying GG, GC, CC genotypes for rs9554322 had higher levels of serum sVEGFR-1. In conclusion, serum sVEGFR-1 was elevated in SLE patients and may be a disease marker. VEGFR1 gene polymorphisms related to risk of SLE in a Chinese Han population.
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Affiliation(s)
- Zhi-Chao Yuan
- Department of Evidence-Based Medicine, School of Public Health, Southwest Medical University, 1 Xianglin Road, Luzhou, 646000, Sichuan, People's Republic of China
| | - Wang-Dong Xu
- Department of Evidence-Based Medicine, School of Public Health, Southwest Medical University, 1 Xianglin Road, Luzhou, 646000, Sichuan, People's Republic of China.
| | - Jia-Min Wang
- Department of Evidence-Based Medicine, School of Public Health, Southwest Medical University, 1 Xianglin Road, Luzhou, 646000, Sichuan, People's Republic of China
| | - Qian Wu
- Department of Evidence-Based Medicine, School of Public Health, Southwest Medical University, 1 Xianglin Road, Luzhou, 646000, Sichuan, People's Republic of China
| | - Jie Zhou
- Department of Evidence-Based Medicine, School of Public Health, Southwest Medical University, 1 Xianglin Road, Luzhou, 646000, Sichuan, People's Republic of China
| | - An-Fang Huang
- Department of Rheumatology and Immunology, Affiliated Hospital of Southwest Medical University, 25 Taiping Road, Luzhou, 646000, Sichuan, People's Republic of China.
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Polić A, Običan SG. Pregnancy in systemic lupus erythematosus. Birth Defects Res 2020; 112:1115-1125. [PMID: 32902202 DOI: 10.1002/bdr2.1790] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/05/2020] [Accepted: 07/30/2020] [Indexed: 01/17/2023]
Abstract
OBJECTIVES Systemic lupus erythematosus (SLE) is a chronic illness that often affects women of reproductive age. The objectives of this article are to review the impact of SLE on pregnancy and current management strategies, including commonly used therapies. METHODS We conducted a review of available literature on the clinical course of SLE, diagnosis, management and pregnancy complications. RESULTS SLE has a variable clinical course characterized by flares and periods of remission and can present unique challenges in the management of obstetric patients. Pregnancy in patients with SLE is associated with multiple risks, including fetal loss, preterm birth, fetal growth restriction, and hypertensive disease. With advancements in disease treatment, many women have favorable pregnancy outcomes, but appropriate preconception counseling and disease management remain important tools in reducing complications. CONCLUSION Given the implications SLE can have on women of reproductive age and in pregnancy, understanding the disease course and management is important in order to optimize pregnancy outcomes.
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Affiliation(s)
- Aleksandra Polić
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, Florida, USA
| | - Sarah G Običan
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, Florida, USA
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Quintana R, Pons-Estel GJ, Roberts K, Sacnún M, Serrano R, Nieto R, Conti S, Gervasoni V, Catoggio LJ, Soriano ER, Scolnik M, García MA, Alvarellos A, Saurit V, Berbotto GA, Sato EI, Costallat LTL, Neto EFB, Bonfa E, Xavier RM, de Oliveira e Silva Montandon AC, Molina-Restrepo JF, Iglesias-Gamarra A, Guibert-Toledano M, Reyes-Llerena GA, Massardo L, Neira OJ, Cardiel MH, Barile-Fabris LA, Amigo MC, Silveira LH, Torre IGDL, Acevedo-Vásquez EM, Ugarte-Gil MF, Alfaro-Lozano JL, Segami MI, Chacón-Díaz R, Esteva-Spinetti MH, Gomez-Puerta JA, Alarcón GS, Pons-Estel BA. Clinical features, damage accrual, and survival in patients with familial systemic lupus erythematosus: data from a multi-ethnic, multinational Latin American lupus cohort. Lupus 2020; 29:1140-1145. [DOI: 10.1177/0961203320935184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objectives This study aimed to compare the clinical features, damage accrual, and survival of patients with familial and sporadic systemic lupus erythematosus (SLE). Methods A multi-ethnic, multinational Latin American SLE cohort was studied. Familial lupus was defined as patients with a first-degree SLE relative; these relatives were interviewed in person or by telephone. Clinical variables, disease activity, damage, and mortality were compared. Odds ratios (OR) and 95% confidence intervals (CI) were estimated. Hazard ratios (HR) were calculated using Cox proportional hazard adjusted for potential confounders for time to damage and mortality. Results A total of 66 (5.6%) patients had familial lupus, and 1110 (94.4%) had sporadic lupus. Both groups were predominantly female, of comparable age, and of similar ethnic distribution. Discoid lupus (OR = 1.97; 95% CI 1.08–3.60) and neurologic disorder (OR = 1.65; 95% CI 1.00–2.73) were significantly associated with familial SLE; pericarditis was negatively associated (OR = 0.35; 95% CI 0.14–0.87). The SLE Disease Activity Index and Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index (SDI) were similar in both groups, although the neuropsychiatric (45.4% vs. 33.5%; p = 0.04) and musculoskeletal (6.1% vs. 1.9%; p = 0.02) domains of the SDI were more frequent in familial lupus. They were not retained in the Cox models (by domains). Familial lupus was not significantly associated with damage accrual (HR = 0.69; 95% CI 0.30–1.55) or mortality (HR = 1.23; 95% CI 0.26–4.81). Conclusion Familial SLE is not characterized by a more severe form of disease than sporadic lupus. We also observed that familial SLE has a higher frequency of discoid lupus and neurologic manifestations and a lower frequency of pericarditis.
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Affiliation(s)
- Rosana Quintana
- Centro Regional de Enfermedades Autoinmunes y Reumáticas (GO-CREAR), Rosario, Argentina
- Hospital Provincial de Rosario, Rosario, Argentina
| | - Guillermo J Pons-Estel
- Centro Regional de Enfermedades Autoinmunes y Reumáticas (GO-CREAR), Rosario, Argentina
- Hospital Provincial de Rosario, Rosario, Argentina
| | | | | | - Rosa Serrano
- Centro Regional de Enfermedades Autoinmunes y Reumáticas (GO-CREAR), Rosario, Argentina
| | - Romina Nieto
- Hospital Provincial de Rosario, Rosario, Argentina
| | | | | | | | | | - Marina Scolnik
- Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Mercedes A García
- Hospital Interzonal General de Agudos General San Martín, La Plata, Argentina
| | | | | | | | - Emilia I Sato
- Universidade Federal da Sao Paulo (UNIFESP), Sao Paulo, Brazil
| | | | | | | | - Ricardo M Xavier
- Hospital da Clinicas da Porto Alegre, Universidade Federal do Rio Grande do Sul, Brazil
| | | | | | | | | | | | - Loreto Massardo
- Facultad de Medicina, Universidad San Sebastián, Santiago, Chile
| | - Oscar J Neira
- Hospital del Salvador, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Mario H Cardiel
- Centro de Investigación Clínica de Morelia SC, Morelia, Mexico
| | | | | | - Luis H Silveira
- Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, Mexico
| | | | | | - Manuel F Ugarte-Gil
- Servicio de Reumatología, Hospital General Guillermo Almenara Irigoyen, EsSalud, Lima, Peru
- Universidad Científica del Sur, Lima, Peru
| | | | | | - Rosa Chacón-Díaz
- Centro Nacional de Enfermedades Reumáticas, Hospital Universitario de Caracas, Caracas, Venezuela
| | | | | | - Graciela S Alarcón
- The University of Alabama at Birmingham, Birmingham, USA
- Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Bernardo A Pons-Estel
- Centro Regional de Enfermedades Autoinmunes y Reumáticas (GO-CREAR), Rosario, Argentina
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Guerra-Monrroy G, Sosa-Tordoya LF. Association of the HLA-G locus genetic polymorphism and the susceptibility to contract systemic lupus erythematosus expressed in some clinical manifestations. JOURNAL OF THE SELVA ANDINA RESEARCH SOCIETY 2020. [DOI: 10.36610/j.jsars.2020.110200062x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Guerra-Monrroy G, Sosa-Tordoya LF. Asociación del polimorfismo genético del locus HLA-G y la susceptibilidad a contraer lupus eritematoso sistémico expresada en algunas manifestaciones clínicas. JOURNAL OF THE SELVA ANDINA RESEARCH SOCIETY 2020. [DOI: 10.36610/j.jsars.2020.110200062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Field MA. Detecting pathogenic variants in autoimmune diseases using high-throughput sequencing. Immunol Cell Biol 2020; 99:146-156. [PMID: 32623783 PMCID: PMC7891608 DOI: 10.1111/imcb.12372] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/22/2020] [Accepted: 07/02/2020] [Indexed: 12/12/2022]
Abstract
Sequencing the first human genome in 2003 took 15 years and cost $2.7 billion. Advances in sequencing technologies have since decreased costs to the point where it is now feasible to resequence a whole human genome for $1000 in a single day. These advances have allowed the generation of huge volumes of high‐quality human sequence data used to construct increasingly large catalogs of both population‐level and disease‐causing variation. The existence of such databases, coupled with a high‐quality human reference genome, means we are able to interrogate and annotate all types of genetic variation and identify pathogenic variants for many diseases. Increasingly, sequencing‐based approaches are being used to elucidate the underlying genetic cause of autoimmune diseases, a group of roughly 80 polygenic diseases characterized by abnormal immune responses where healthy tissue is attacked. Although sequence data generation has become routine and affordable, significant challenges remain with no gold‐standard methodology to identify pathogenic variants currently available. This review examines the latest methodologies used to identify pathogenic variants in autoimmune diseases and considers available sequencing options and subsequent bioinformatic methodologies and strategies. The development of reliable and robust sequencing and analytic workflows to detect pathogenic variants is critical to realize the potential of precision medicine programs where patient variant information is used to inform clinical practice.
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Affiliation(s)
- Matt A Field
- Centre for Tropical Bioinformatics and Molecular Biology, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD, Australia.,John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
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Lim SC, Chan EWL, Tang SP. Clinical features, disease activity and outcomes of Malaysian children with paediatric systemic lupus erythematosus: A cohort from a tertiary centre. Lupus 2020; 29:1106-1114. [PMID: 32631203 DOI: 10.1177/0961203320939185] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Paediatric systemic lupus erythematosus is a rare autoimmune disease with a wide spectrum of clinical presentation in different populations. We present a cohort of paediatric systemic lupus erythematosus in Malaysia where the disease features and outcomes are still largely unknown. METHODS A retrospective review of all paediatric systemic lupus erythematosus patients with at least 6 months follow-up at Selayang Hospital from 2004 to 2016. Epidemiological, clinical and outcome data were collected and analysed. RESULTS A total of 141 paediatric systemic lupus erythematosus patients, 87.9% females, were followed up for a median 6.3 years (interquartile range 3.6-9.0). The median age at diagnosis was 10.8 years (interquartile range 9.0-12.0 years), positive family history of systemic lupus erythematosus was present in 12.1% and the majority (61.7%) were of Malay ethnicity. Common presentations included fever (87.2%), vasculitic rash (72.3%) and lethargy (69.5%). At diagnosis, leukopenia (51.1%), thrombocytopenia (41.8%) and cutaneous lupus (56%) predominate with significant renal involvement (39.7%). Renal (45.4%), liver (26%) and the central nervous system (17%) were important major organs involved during the course of the disease. At diagnosis, almost all (99.3%) patients had high disease activity (mean Systemic Lupus Erythematosus Disease Activity Index score 20.1 ± 9.6). The majority (62.4%) achieved remission or low disease activity after 6 months, maintained over the next 10 years. Damage occurred early (39.1% at 1 year) and increased with time. Ocular damage was the most common side effect (29%) and was predominantly corticosteroid related (93%). Growth retardation was significant (38.2%) with no gonadal failure or secondary malignancies. End-stage renal disease occurred in 3.1% patients whereas 53.1% had sustained renal remission. Overall mortality was 1.4%. CONCLUSION Despite high disease activity at diagnosis, the majority had good sustained response to treatment with low overall mortality. However, there was progressive accrual of organ damage, highlighting the need for further research and refinements into therapies for paediatric systemic lupus erythematosus.
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Affiliation(s)
- Sern Chin Lim
- Department of Paediatrics, Universiti Teknologi MARA, Jalan Hospital, Sungai Buloh, Malaysia
| | - Elaine Wan Ling Chan
- Institute for Research, Development and Innovation, International Medical University, Bukit Jalil, Malaysia
| | - Swee Ping Tang
- Paediatric Rheumatology Unit, Selayang Hospital, Batu Caves, Malaysia
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Jiang SH, Stanley M, Vinuesa CG. Rare genetic variants in systemic autoimmunity. Immunol Cell Biol 2020; 98:490-499. [PMID: 32315078 DOI: 10.1111/imcb.12339] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/15/2020] [Accepted: 04/15/2020] [Indexed: 01/03/2023]
Abstract
Autoimmune disease is a substantial cause of morbidity and is strongly influenced by genetic risk. Extensive efforts have characterized the overall genetic basis of many autoimmune diseases, typically by investigation of common variants. While these common variants have modest effects and may cumulatively predispose to disease, it is also increasingly apparent that rare variants have significantly greater effect on phenotype and are likely to contribute to autoimmune disease. Recent advances have illustrated the next fundamental step in elucidating the genetic basis of autoimmunity, moving beyond association to demonstrate the functional consequences of these variants.
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Affiliation(s)
- Simon H Jiang
- Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, ACT, 2601, Australia.,Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Australian National University, Acton, ACT, 2601, Australia.,Department of Renal Medicine, The Canberra Hospital, Garran, ACT, 2601, Australia
| | - Maurice Stanley
- Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, ACT, 2601, Australia.,Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Australian National University, Acton, ACT, 2601, Australia
| | - Carola G Vinuesa
- Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, ACT, 2601, Australia.,Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Australian National University, Acton, ACT, 2601, Australia.,China Australia Centre for Personalised Immunology, Shanghai Renji Hospital, Jiao Tong University Shanghai, Huangpu Qu, 200333, China
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Fan Z, Chen X, Liu L, Zhu C, Xu J, Yin X, Sheng Y, Zhu Z, Wen L, Zuo X, Zheng X, Zhang Y, Xu J, Huang H, Zhou F, Sun L, Luo J, Zhang D, Chen X, Cui Y, Hao Y, Cui Y, Zhang X, Chen R. Association of the Polymorphism rs13259960 in SLEAR With Predisposition to Systemic Lupus Erythematosus. Arthritis Rheumatol 2020; 72:985-996. [PMID: 31930717 DOI: 10.1002/art.41200] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 12/31/2019] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Genome-wide association studies have identified many susceptibility loci for systemic lupus erythematosus (SLE). However, most of these loci are located in noncoding regions of the genome. Long noncoding RNAs (lncRNAs) are pervasively expressed and have been reported to be involved in various diseases. This study aimed to explore the genetic significance of lncRNAs in SLE. METHODS A genome-wide survey of SLE risk variants in lncRNA gene loci was performed in Han Chinese subjects (4,556 with SLE and 9,451 healthy controls). The functional relevance of an SLE risk variant in one of the lncRNA genes was explored using biochemical and molecular cell biology analyses. In vitro loss-of-function and gain-of-function strategies were used to clarify the functional and phenotypic relevance of this SLE susceptibility lncRNA. Moreover, correlation of this lncRNA with the degree of apoptosis in the peripheral blood of SLE patients was evaluated. RESULTS A novel SLE susceptibility locus in a lncRNA gene, designated SLEAR (for SLE-associated RNA), was identified at the single-nucleotide polymorphism rs13259960 (odds ratio 1.35, Pcombined = 1.03 × 10-11 ). The A>G variation at rs13259960, located in an intronic enhancer, was found to impair STAT1 recruitment to the enhancer that loops to the SLEAR promoter, resulting in decreased SLEAR production in peripheral blood mononuclear cells from patients with SLE (3 with the G/G genotype, 22 with A/G, and 103 with A/A at rs13259960; P = 0.0241). Moreover, SLEAR interacted with the RNA binding proteins interleukin enhancer binding factor 2, heterogeneous nuclear RNP F, and TATA-binding protein-associated factor 15, to form a complex for transcriptional activation of the downstream antiapoptotic genes. In addition, SLEAR regulated apoptosis of Jurkat cells in vitro, and its expression level was correlated with the degree of cell death in the peripheral blood of patients with SLE (r = 0.824, P = 2.15 × 10-8 ; n = 30). CONCLUSION These findings suggest a mechanism by which the risk variant at rs13259960 modulates SLEAR expression and confers a predisposition to SLE. Taken together, these results may give insights into the etiology of SLE.
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Affiliation(s)
- Zhen Fan
- Chinese Academy of Sciences, Beijing, China
| | | | - Lu Liu
- Huashan Hospital and Fudan University, Shanghai, China, and First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Caihong Zhu
- The First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Jinhua Xu
- Huashan Hospital and Fudan University, Shanghai, China
| | - Xianyong Yin
- Huashan Hospital and Fudan University, Shanghai, China, and First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Yujun Sheng
- Huashan Hospital and Fudan University, Shanghai, China, and First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Zhengwei Zhu
- Huashan Hospital and Fudan University, Shanghai, China, and First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Leilei Wen
- Huashan Hospital and Fudan University, Shanghai, China, and First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Xianbo Zuo
- The First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Xiaodong Zheng
- The First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Yaohua Zhang
- Huashan Hospital and Fudan University, Shanghai, China
| | - Jingkai Xu
- The First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - He Huang
- The First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Fusheng Zhou
- The First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | - Liangdan Sun
- The First Affiliated Hospital of Anhui Medical University and Anhui Medical University, Hefei, China
| | | | | | | | - Ya Cui
- Chinese Academy of Sciences, Beijing, China
| | - Yajing Hao
- Chinese Academy of Sciences, Beijing, China
| | - Yong Cui
- China-Japan Friendship Hospital, Beijing, China
| | - Xuejun Zhang
- Huashan Hospital and Fudan University, Shanghai, China
| | - Runsheng Chen
- Chinese Academy of Sciences and University of Chinese Academy of Sciences, Beijing, China, and Guangdong Geneway Decoding Bio-Tech Co. Ltd, Foshan, China
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Demirkaya E, Sahin S, Romano M, Zhou Q, Aksentijevich I. New Horizons in the Genetic Etiology of Systemic Lupus Erythematosus and Lupus-Like Disease: Monogenic Lupus and Beyond. J Clin Med 2020; 9:E712. [PMID: 32151092 PMCID: PMC7141186 DOI: 10.3390/jcm9030712] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/12/2020] [Accepted: 02/21/2020] [Indexed: 02/05/2023] Open
Abstract
Systemic lupus erythematosus (SLE) is a clinically and genetically heterogeneous autoimmune disease. The etiology of lupus and the contribution of genetic, environmental, infectious and hormonal factors to this phenotype have yet to be elucidated. The most straightforward approach to unravel the molecular pathogenesis of lupus may rely on studies of patients who present with early-onset severe phenotypes. Typically, they have at least one of the following clinical features: childhood onset of severe disease (<5 years), parental consanguinity, and presence of family history for autoimmune diseases in a first-degree relative. These patients account for a small proportion of patients with lupus but they inform considerable knowledge about cellular pathways contributing to this inflammatory phenotype. In recent years with the aid of new sequencing technologies, novel or rare pathogenic variants have been reported in over 30 genes predisposing to SLE and SLE-like diseases. Future studies will likely discover many more genes with private variants associated to lupus-like phenotypes. In addition, genome-wide association studies (GWAS) have identified a number of common alleles (SNPs), which increase the risk of developing lupus in adult age. Discovery of a possible shared immune pathway in SLE patients, either with rare or common variants, can provide important clues to better understand this complex disorder, it's prognosis and can help guide new therapeutic approaches. The aim of this review is to summarize the current knowledge of the clinical presentation, genetic diagnosis and mechanisms of disease in patents with lupus and lupus-related phenotypes.
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Affiliation(s)
- Erkan Demirkaya
- Schulich School of Medicine & Dentistry, Department of Paediatrics, Division of Paediatric Rheumatology, University of Western Ontario, London, ON N6A 5W9, Canada;
| | - Sezgin Sahin
- Van Training and Research Hospital, Department of Paediatric Rheumatology, 65000 Van, Turkey;
| | - Micol Romano
- Schulich School of Medicine & Dentistry, Department of Paediatrics, Division of Paediatric Rheumatology, University of Western Ontario, London, ON N6A 5W9, Canada;
- Department of Pediatric Rheumatology, ASST-PINI-CTO, 20122 Milano, Italy
| | - Qing Zhou
- Life Sciences Institute, Zhejiang University, Hang Zhou 310058, China;
| | - Ivona Aksentijevich
- Inflammatory Disease Section, National Human Genome Research Institute, Bethesda, MD 20892, USA;
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49
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Polymorphisms of MFGE8 are associated with susceptibility and clinical manifestations through gene expression modulation in Koreans with systemic lupus erythematosus. Sci Rep 2019; 9:18565. [PMID: 31811237 PMCID: PMC6897915 DOI: 10.1038/s41598-019-55061-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 11/20/2019] [Indexed: 12/22/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is characterized by impaired clearance of apoptotic cells. Milk fat globule epidermal growth factor 8 (MFGE8) is a protein that connects αvβ3 integrin on phagocytic macrophages with phosphatidylserine on apoptotic cells. We investigated whether genetic variation of the MFGE8 gene and serum MFGE8 concentration are associated with SLE. Single nucleotide polymorphisms (SNPs) were genotyped and serum concentrations were analyzed. The rs2271715 C allele and rs3743388 G allele showed higher frequency in SLE than in healthy subjects (HSs). Three haplotypes were found among 4 SNPs (rs4945, rs1878327, rs2271715, and rs3743388): AACG, CGCG, and CGTC. CGCG haplotype was significantly more common in SLE than in HSs. rs4945 was associated with the erythrocyte sedimentation rate and rs1878327 was associated with alopecia, C-reactive protein, complement 3, anti-dsDNA antibody, and high disease activity. rs2271715 and rs3743388 were associated with renal disease, cumulative glucocorticoid dose, and cyclophosphamide and mycophenolate mofetil use. Serum MFGE8 concentrations were significantly higher in SLE than in HSs. Furthermore, the levels of MFGE8 were significantly higher in SLE than HSs of the rs2271715 CC genotype. In conclusion, MFGE8 genetic polymorphisms are associated not only with susceptibility to SLE but also with disease activity through modulation of gene expression.
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Chebbi D, Jallouli M, Snoussi M, Damak C, Frikha F, Ben Salah R, Loukil H, Marzouk S, Bahloul Z. Familial lupus in Tunisia: a series of 14 families. Lupus 2019; 29:92-95. [PMID: 31789126 DOI: 10.1177/0961203319889663] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The relatively high prevalence of systemic lupus erythematosus (SLE) in familial cases supports genetic susceptibility to this disease. Although many advances have been made in the identification of new genes implicated in lupus pathogenesis, to date, there has been no large study of familial SLE. We report what we believe to be the first study of familial SLE in the North African population. The objectives of this study were to determine the main clinical and laboratory features of familial lupus and to compare them to sporadic lupus in a population of Tunisian patients. Fourteen families in which the diagnosis of lupus could be verified in at least two relatives were included in the study. All patients fulfilled four or more criteria defined by the American College of Rheumatology. Twenty-seven patients (23 females and 4 males) with familial SLE among a cohort of 253 SLE patients were found, resulting in a frequency of 10.67%. No significant differences were found between familial SLE cases and their controls in terms of sex ratio, mean age at onset and clinical and serological manifestations, which is consistent with the results of other series reported in the literature. Our results support the importance of carrying out more genetic studies within families of SLE in order to have a better understanding of the genetic and molecular mechanisms of the disease.
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Affiliation(s)
- D Chebbi
- Department of Internal Medicine, Hedi Chaker University Hospital, Sfax, Tunisia
| | - M Jallouli
- Department of Internal Medicine, Hedi Chaker University Hospital, Sfax, Tunisia
| | - M Snoussi
- Department of Internal Medicine, Hedi Chaker University Hospital, Sfax, Tunisia
| | - C Damak
- Department of Internal Medicine, Hedi Chaker University Hospital, Sfax, Tunisia
| | - F Frikha
- Department of Internal Medicine, Hedi Chaker University Hospital, Sfax, Tunisia
| | - R Ben Salah
- Department of Internal Medicine, Hedi Chaker University Hospital, Sfax, Tunisia
| | - H Loukil
- Department of Internal Medicine, Hedi Chaker University Hospital, Sfax, Tunisia
| | - S Marzouk
- Department of Internal Medicine, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Z Bahloul
- Department of Internal Medicine, Hedi Chaker University Hospital, Sfax, Tunisia
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