Abstracts tagged "DNA Methylation"

Abstract Number: 76 • 2018 ACR/ARHP Annual Meeting
Whole Blood Targeted Bisulfite Pyrosequencing Identifies Differentially Methylated Regions within Major Histocompatibility Complex (MHC) of Patients with Rheumatoid Arthritis
Vidyanand Anaparti¹, Irene Smolik², Prasoon Agarwal³, Neeloffer Mookherjee¹ and Hani El-Gabalawy⁴, ¹Internal Medicine, University of Manitoba, Winnipeg, MB, Canada, ²Food and Nutritional Sciences, University of Manitoba, Winnipeg, MB, Canada, ³Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB, Canada, ⁴University of Manitoba, Winnipeg, MB, Canada
Background/Purpose: Human major histocompatibility complex (MHC) is strongly associated with rheumatoid arthritis (RA) pathogenesis. Epigenome-wide association study by Liu et al showed that differential DNA…
Abstract Number: 88 • 2018 ACR/ARHP Annual Meeting
Lymphocyte DNA Methylation As a Mediator of Genetic Risk in Rheumatoid Arthritis
Alex Clark^1,2, Nisha Nair³, Andrew Skelton^1,2, Amy Anderson^1,2, Nishanthi Thalayasingam^1,2, Najib Naamane^1,2, Julie Diboll^1,2, Jonathan Massey⁴, Stephen Eyre^3,4, Anne Barton^3,4, John Isaacs^1,2, Louise Reynard⁵ and Arthur Pratt^1,2, ¹Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom, ²NIHR, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom, ³Arthritis Research UK Centre for Genetics and Genomics and Centre for Epidemiology, University of Manchester, Manchester, United Kingdom, ⁴NIHR Manchester Musculoskeletal Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester, United Kingdom, ⁵Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom
Background/Purpose: Genome-wide association studies (GWAS) have to date identified over 100 genomic loci at which single nucleotide polymorphisms (SNPs) confer an increased risk of developing…
Abstract Number: 154 • 2018 ACR/ARHP Annual Meeting
Epigenetic Editing of FOXP3 in Human T Cells Is Sufficient to Induce Overexpression and Create a Regulatory T Cell Phenotype in Vitro
Christopher Dunn¹, Cassandra Velasco¹, Madison Andrews², Alexander Rivas³ and Matlock A. Jeffries⁴, ¹Rheumatology, Immunology, and Allergy, University of Oklahoma Health Sciences Center, Oklahoma City, OK, ²Oklahoma Medical Research Foundation, Oklahoma City, OK, ³University of Arkansas for Medical Sciences, Little Rock, AR, ⁴Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, OK
Background/Purpose: Defects in the number and function of naturally-occurring regulatory T cells (Tregs) have been identified in a variety of autoimmune diseases. The development of…
Abstract Number: 916 • 2018 ACR/ARHP Annual Meeting
Integrative Analysis of Multi-Omics Data in an Ethnically Diverse Lupus Cohort Identifies Distinct Molecular Subtypes of SLE
Cristina Lanata¹, Ishan Paranjpe², Joanne Nitiham³, Kimberly Taylor⁴, Brooke Rhead⁵, Milena Gianfrancesco⁶, Lisa Barcellos⁷, Louise Murphy⁸, Patricia Katz⁹, Laura Trupin⁶, Jinoos Yazdany², Maria Dall'Era², Marina Sirota¹⁰ and Lindsey A. Criswell⁹, ¹Rosalind Russell Medical Research Center for Arthritis, Department of Medicine, Division of Rheumatology, University of California, San Francisco, San Francisco, CA, ²University of California, San Francisco, San Francisco, CA, ³Rosalind Russell / Ephraim P. Engleman Rheumatology Research Center, University of California, San Francisco, San Francisco, CA, ⁴University of California, San Francisco, Rosalind Russell / Ephraim P. Engleman Rheumatology Research Center, San Francisco, CA, ⁵University of California, Berkeley, Berkeley, CA, ⁶Medicine/Rheumatology, University of California, San Francisco, San Francisco, CA, ⁷School of Public Health, UC Berkeley, Berkeley, CA, ⁸Arthritis Program, Centers for Disease Control and Prevention, Atlanta, GA, ⁹University of California San Francisco, San Francisco, CA, ¹⁰Pediatrics, Institute for Computational Health Sciences, University of California, San Francisco, San Francisco, CA
Background/Purpose: Systemic Lupus Erythematous (SLE) is a chronic autoimmune disease with heterogeneous disease manifestations and outcomes. We aimed to define how molecular differences underlie this…
Abstract Number: 2061 • 2018 ACR/ARHP Annual Meeting
Genome-Wide DNA Methylation Analysis in Ankylosing Spondylitis
Patrick Coit¹, Prashant Kaushik², Liron Caplan³, Gail S. Kerr⁴, Jessica Walsh⁵, Maureen Dubreuil⁶, Andreas Reimold⁷ and Amr H Sawalha¹, ¹Division of Rheumatology, University of Michigan, Ann Arbor, MI, ²Rheumatology/Medicine, Stratton VAMC, Albany, NY, ³Div of Rheumatology, Denver VA Medical Center and University of Colorado, Aurora, CO, ⁴Rheumatology, Washington DC VAMC and Georgetown and Howard University, Washington, DC, ⁵George E. Wahlen Veteran Affairs Medical Center & University of Utah, Salt Lake City, UT, ⁶Rheumatology, VA Boston Healthcare System & Boston University School of Medicine, Boston, MA, ⁷Rheumatology, Dallas VA Medical Center and University of Texas - Southwestern, Dallas, TX
Background/Purpose: Ankylosing spondylitis is a chronic inflammatory disease characterized by inflammation of the sacroiliac joints and the spine leading to significant immobility. A subset of…
Abstract Number: 755 • 2017 ACR/ARHP Annual Meeting
Genome-Wide DNA Methylation Pattern in Systemic Sclerosis Microvascular Endothelial Cells: Identification of Epigenetically Affected Key Genes and Pathways
Shadia Nada¹, Ibtissam Gad², Ali Alqahtani³, Ahmad Assaly², Sadik Khuder⁴, Yongqing Wang⁵, Bashar Kahaleh¹ and Nezam Altorok¹, ¹Medicine/Rheumatology, University of Toledo, Toledo, OH, ²University of Toledo, Toledo, OH, ³Internal Medicine, University of Toledo, Toledo, OH, ⁴Department of Medicine, University of Toledo, Toledo, OH, ⁵Medicine, University of Toledo, Toledo, OH
Background/Purpose: The etiology of systemic sclerosis (SSc) is not clear, but there is evidence suggesting a critical role for epigenetic alterations in disease pathogenesis and…
Abstract Number: 1018 • 2017 ACR/ARHP Annual Meeting
Comprehensive Identification of Differentially Methylated Regions Associated with Systemic Sclerosis in Dermal Fibroblasts from African-American Patients
Paula S. Ramos^1,2, Willian da Silveira³, E. Starr Hazard³, Ilia Atanelishvili⁴, Robert C. Wilson⁵, Jim C. Oates¹, Galina S. Bogatkevich⁴ and Gary Hardiman^1,2,3, ¹Department of Medicine, Medical University of South Carolina, Charleston, SC, ²Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC, ³Center for Genomic Medicine, Medical University of South Carolina, Charleston, SC, ⁴Division of Rheumatology and Immunology, Department of Medicine, Medical University of South Carolina, Charleston, SC, ⁵Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC
Background/Purpose: The etiology and reasons underlying the ethnic disparities in systemic sclerosis (SSc) remain unknown. African-Americans are disproportionally affected by SSc, yet dramatically underrepresented in…
Abstract Number: 1727 • 2017 ACR/ARHP Annual Meeting
Genome-Wide DNA Methylation Analysis in Systemic Sclerosis Reveals Hypomethylation of Interferon-Associated Genes in CD4+ and CD8+ T Cells
Weilin Pu¹, Weifeng Ding², Lei Wang³, Shuai Jiang⁴, Wenzhen Tu³, Shicheng Guo⁵, Qingmei Liu⁶, Yanyun Ma⁴, Sidi Chen⁷, Wenyu Wu⁶, Xiaodong Zhou⁸, Maureen D. Mayes⁹, Shervin Assassi⁹, John D. Reveille⁹, Li Jin¹⁰ and Jiucun Wang¹⁰, ¹State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences,, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, Shanghai, China, Shanghai, China, ²Medical Laboratory Center, Medical Laboratory Center, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China, Nantong, China, ³Division of Rheumatology, Division of Rheumatology, Shanghai TCM-integrated Hospital, Shanghai, China, Shanghai, China, ⁴Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China, Shanghai, China, ⁵Department of Bioengineering, Department of Bioengineering, University of California at San Diego, CA, USA, San Diego, CA, ⁶Department of Dermatology, Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China, Shanghai, China, ⁷State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences,, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, Shanghai, China, Shanghai, China, ⁸Internal Medicine-Rheumatology, University of Texas McGovern Medical School, Houston, TX, ⁹University of Texas McGovern Medical School, Houston, TX, ¹⁰State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University, Shanghai, China, Shanghai, China
Background/Purpose: Systemic sclerosis (SSc) is a complex systemic autoimmune disease caused by complicated interaction between genetic, epigenetic and environmental risk factors. Evidence showed epigenetic modifications,…
Abstract Number: 1791 • 2017 ACR/ARHP Annual Meeting
TET1 Is an Important Transcriptional Activator of the Tnfa Locus in Macrophages
Emmanuel Karouzakis¹, Fangfang Sun², Agnieszka Pajak¹, Shuang Ye², Steffen Gay¹, Oliver Distler³ and Michel Neidhart¹, ¹Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland, ²Department of Rheumatology, Renji Hospital South Campus, School of Medicine, Shanghai Jiao Tong University, Shanghai, China, ³Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland
Background/Purpose: Activated macrophages are found in the inflamed and hyperplastic synovial RA tissue. Macrophages are the main producers of high levels of pro-inflammatory cytokines such…
Abstract Number: 2654 • 2017 ACR/ARHP Annual Meeting
Treatment-Associated DNA Methylation Patterns in Systemic Lupus Erythematosus
Juliana Imgenberg-Kreuz^1,2, Jonas Carlsson Almlöf¹, Dag Leonard³, Gunnel Nordmark², Maija-Leena Eloranta³, Leonid Padyukov⁴, Iva Gunnarsson⁴, Elisabet Svenungsson⁴, Christopher Sjöwall⁵, Lars Rönnblom², Ann-Christine Syvänen¹ and Johanna K Sandling^1,2, ¹Department of Medical Sciences, Molecular Medicine and Science for Life Laboratory, Uppsala University, Uppsala, Sweden, Uppsala, Sweden, ²Department of Medical Sciences, Section of Rheumatology, Uppsala University, Uppsala, Sweden, Uppsala, Sweden, ³Rheumatology and Science for Life Laboratory, Department of Medical Sciences, Uppsala University, Sweden, Uppsala, Sweden, ⁴Department of Medicine Solna, Rheumatology Unit, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, Stockholm, Sweden, ⁵Department of Clinical and Experimental Medicine, Rheumatology/AIR, Linköping University, Linköping, Sweden, Linköping, Sweden
Background/Purpose: DNA methylation has emerged as an important contributing factor in the pathogenesis of systemic lupus erythematosus (SLE). SLE typically requires continuous treatment to control…
Abstract Number: 74 • 2016 ACR/ARHP Annual Meeting
Arthritis-Associated DNA Hypermethylation Provokes Increased Antibody Expression in Mouse Model of Rheumatoid Arthritis
Daniel M. Tóth¹, Timea Ocskó¹, Adrienn Markovics¹, Attila Balog², Katalin Mikecz¹, Tibor T. Glant¹ and Tibor A. Rauch¹, ¹Orthopedic Surgery, Rush University Medical Center, Chicago, IL, ²Rheumatology, Albert Szent-Gyorgyi University, Szeged, Hungary
Background/Purpose: Although a number of epigenetic alterations have been revealed in rheumatoid arthritis (RA), it remained an open question whether these epimutations play role in…
Abstract Number: 2108 • 2016 ACR/ARHP Annual Meeting
DNA Hypomethylation in Promoter Region of Zbtb38 Gene Ultimately Leads to Downregulated Expression of Anti-Inflammatory IL1r2 in Experiential Model of Rheumatoid Arthritis
Timea Ocskó¹, Daniel M. Tóth¹, Attila Balog², Katalin Mikecz¹, Tibor T. Glant¹ and Tibor A. Rauch³, ¹Orthopedic Surgery, Rush University Medical Center, Chicago, IL, ²Rheumatology, Albert Szent-Gyorgyi University, Szeged, Hungary, ³1735 W. Harrison Str., Rush University Medical Center, Chicago, IL
Background/Purpose: Interleukin 1 beta (IL1B) is a multifunctional cytokine that is highly expressed in rheumatoid arthritis (RA) and drives pro-inflammatory pathways via interleukin 1 receptor…
Abstract Number: 2867 • 2016 ACR/ARHP Annual Meeting
Aberrant Epigenetic Alterations at the Promoter up-Regulate cAMP Responsive Element Modulator Alpha in CD4+ T Cells from Patients with Systemic Lupus Erythematosus
Qing Zhang¹, Huilin Zhang², Shu Ding³, Hai Long⁴, Yi Zhan², Xiangning Qiu⁴ and Qianjin Lu⁴, ¹Department of Dermatology, The Second Xiangya Hospital of Central South University, Changsha, China, ²Second Xiangya Hospital, Central South University, Changsha, China, ³Department of Dermatology, The Third Xiangya Hospital of Central South University, Changsha, China, ⁴Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
Background/Purpose: Recently, accumulating studies have documented that up-regulated cAMP responsive element modulator α (CREMα) which can inhibit IL-2 and induce IL-17A in T cells plays…
Abstract Number: 2928 • 2016 ACR/ARHP Annual Meeting
Hypomethylation of an Intragenic Alternative Promoter Contributes to Impaired Treg Function in Rheumatoid Arthritis By Transcriptional Interference with Expression of the Treg-Specific Protein, Glycoprotein a Repetitions Predominant (GARP)
Alla Skapenko, Jan Leipe and Hendrik Schulze-Koops, Division of Rheumatology and Clinical Immunology, University of Munich, Munich, Germany
Background/Purpose: The expression of Treg specific genes, such as the master transcription factor of Tregs, FoxP3 or the Treg specific surface molecule, glycoprotein A repetitions…
Abstract Number: 1257 • 2015 ACR/ARHP Annual Meeting
Genome-Wide DNA Methylation Signatures of Salivary Gland Inflammation in Sjögren’s Syndrome
Michael Cole¹, Diana Quach¹, Hong L. Quach¹, Lisa F. Barcellos¹ and Lindsey A. Criswell², ¹Genetic Epidemiology and Genomics Laboratory, University of California, Berkeley, Berkeley, CA, ²Rosalind Russell / Ephraim P. Engleman Rheumatology Research Center, University of California, San Francisco, San Francisco, CA
Background/Purpose: Sjögren’s Syndrome (SS, OMIM #270150) is a chronic, multi-system autoimmune disease characterized by progressive destruction of the exocrine glands, with subsequent mucosal and conjunctival…