Abstracts tagged "Epigenetics"

Abstract Number: 1773 • ACR Convergence 2023
Integrated Analysis of Rheumatoid Arthritis (RA) Fibroblast-like Synoviocytes (FLS) Transcriptome and Chromatin Accessibility Identifies Mechanisms Associated with Location-specific Disease Severity
Eunice Choi¹, Camilla R. L. Machado², David Boyle¹, Wei Wang¹ and Gary Firestein², ¹University of California San Diego, La Jolla, CA, ²University of California San Diego, San Diego, CA
Background/Purpose: Mechanisms responsible for the distribution and severity of joint involvement in RA are not known. To explore whether site-specific FLS biology might contribute to…
Abstract Number: 2331 • ACR Convergence 2023
Molecular Predictors of Treatment Response in Two Trials of Abatacept in Systemic Lupus Erythematosus
Kevin Thomas¹, Miles Smith¹, Carla Guthridge¹, Nicolas Dominguez¹, Susan Macwana¹, Wade DeJager¹, Catriona Wagner¹, Peter Schafer², Stan Kamp¹, Betty Diamond³, David Wofsy⁴, Aikaterini Thanou⁵, Cristina Arriens⁶, Cynthia Aranow³, Joan Merrill¹, Judith James¹ and Joel Guthridge¹, ¹Oklahoma Medical Research Foundation, Oklahoma City, OK, ²Bristol Myers Squibb, Belle Mead, NJ, ³Feinstein Institutes for Medical Research, Manhasset, NY, ⁴University of California San Francisco, San Francisco, CA, ⁵University of Oklahoma Health, Edmond, OK, ⁶Oklahoma Medical Research Foundation and University of Oklahoma Health Sciences Center, Department of Arthritis & Clinical Immunology, Oklahoma City, OK
Background/Purpose: Abatacept (ABA) is a fusion protein that disrupts T cell co-stimulation by inhibiting interactions between CD28 and CD80/86. ABA is effective in RA, but…
Abstract Number: 2431 • ACR Convergence 2023
Integrated Single Cell Multi-omics Analysis in At-Risk for Future Rheumatoid Arthritis (RA) and Early RA Reveals Shared Transcription Factor Profiles in Multiple Cell Lineages
Cong Liu¹, David Boyle¹, Adam Savage², Marie Feser³, Kristen Demoruelle³, kristine Kuhn⁴, Michael Holer³, kevin Deane³, Palak Genge², Morgan Weiss², Veronica Hernandez², Julian Reading², Jane Buckner⁵, Tom Bumol², Mark Gillespie², Peter Skene², Wei Wang⁶ and Gary Firestein¹, ¹University of California San Diego, San Diego, CA, ²Allen Institute for Immunology, Seattle, WA, ³University of Colorado Anschutz Medical Campus, Aurora, CO, ⁴University of Colorado School of Medicine, Aurora, CO, ⁵Benaroya Research Institute at Virginia Mason, Seattle, WA, ⁶University of California San Diego, La Jolla, CA
Background/Purpose: Identifying molecular signatures associated with anti-citrullinated protein antibody (ACPA) positive individuals who are 'at-risk' for future RA (At-Risk) and early RA (ERA) requires comprehensive…
Abstract Number: 2439 • ACR Convergence 2023
Proteomic and Genomic Profiling of Plasma Exosomes from Ankylosing Spondylitis Patients
Fataneh Tavasolian¹, starlee lively², Chiara Pastrello³, Michael Tang², Melissa Lim², Addison Pacheco², Zoya Qaiyum², Enoch Yau², Zeynep Baskurt⁴, Igor Jurisica⁵, Mohit Kapoor⁶ and Robert Inman², ¹Krembil Research Institute, University Health Network, Toronto, ON, Canada, ²University Health Network, Toronto, ON, Canada, ³Osteoarthritis Research Program, Division of Orthopaedic Surgery, Schroeder Arthritis Institute and Data Science Discovery Centre for Chronic diseases, Krembil Research Institute, Toronto, ON, Canada, ⁴Department of Biostatistics, University Health Network, Toronto, ON, Canada, ⁵Schroeder Arthritis Institute, Krembil Research Institute and Departments of Medical Biophysics and Computer Science and Faculty of Dentistry, University of Toronto and Institute of Neuroimmunology, Slovak Academy of Sciences, Bratislava, Slovakia, ⁶Division of Orthopaedics, Osteoarthritis Research Program, Schroeder Arthritis Institute, and Krembil Research Institute, University Health Network, Toronto, ON, Canada
Background/Purpose: Recent advances in understanding the biology of Ankylosing Spondylitis (AS) using innovative genomic and proteomic approaches offer the opportunity to address current challenges in…
Abstract Number: 0014 • ACR Convergence 2023
The 330 Genetic Risk Loci of Systemic Lupus Erythematosus (SLE) Now Known Are Consonant with Multiple Causal Mechanisms Involving Epstein-Barr Virus (EBV)-Encoded Transcription Co-factors (TFs) in EBV-Infected B Cells
Viktoryia Laurynenka¹, Xiaoting Chen², sreeja Parameswaran², Leah Kottyan², Matthew Weirauch², Iouri Chepelev³, Kenneth Kaufman³ and John Harley³, ¹Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ²Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ³US Department of Veterans Affairs Medical Center, Cincinnati, OH
Background/Purpose: Association of EBV infection with SLE, data suggesting an anti-EBNA1 molecular mimicry fostering SLE autoimmunity, and mechanisms in EBV infected B cells support a…
Abstract Number: 2507 • ACR Convergence 2023
ZCCHC6 Modulates the Global Phosphorylation Landscape in TNF-a-induced Rheumatoid Arthritis Synovial Fibroblasts
Anil Singh, Farheen Sultan Shaikh and Salahuddin Ahmed, Washington State university, Spokane, WA
Background/Purpose: ZCCHC6, also known as TUT7 or TENT2, plays a crucial role in RNA processing and metabolism through its uridylyl transferase function. This function involves…
Abstract Number: 0031 • ACR Convergence 2023
A Systematic Approach for Identifying Causal Variants and Their Target Genes on JIA Risk Haplotypes
Kaiyu Jiang¹, tao liu², Ryan Tewhey³, Susan Kales³, Yungki Park⁴ and James N Jarvis⁵, ¹University at Buffalo, Buffalo, NY, ²Roswell Park Cancer Institute, Buffalo, NY, ³Jackson Laboratories, Bar Harbor, ME, ⁴University at Buffalo Jacobs School of Medicine & Biomedical Sciences, Buffalo, NY, ⁵University at Buffalo Jacobs School of Medicine, Buffalo, NY
Background/Purpose: GWAS have identified multiple genetic regions that confer risk for juvenile idiopathic arthritis (JIA).However, identifying the single nucleotide polymorphisms (SNPs) that drive disease risk…
Abstract Number: 015 • 2023 Pediatric Rheumatology Symposium
Epigenetically-Distinct B Cell Profiles Pre- and Post-Induction Therapy in Pediatric Lupus
Joyce Hui-Yuen¹, Kaiyu Jiang², Susan malkiel³, Betty Diamond⁴ and James Jarvis⁵, ¹Cohen Children's Medical Center, Northwell Health, Lake Success, New York; Center for Autoimmune, Musculoskeletal, and Hematopoietic Diseases Research, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, ²University at Buffalo, Buffalo, NY, ³Feinstein Institutes for Medical Research, Manhasset, NY, ⁴The Feinstein Institutes for Medical Research, Manhasset, NY, ⁵University at Buffalo Jacobs School of Medicine, Buffalo, NY
Background/Purpose: Systemic lupus erythematosus (SLE) may be triggered by gene-environment interactions. Data are scarce on how epigenetic variance contributes to disease risk in pediatric SLE…
Abstract Number: 112 • 2023 Pediatric Rheumatology Symposium
Adverse Childhood Experiences: Prevalence and Relationship to Disease in Childhood-onset Lupus
Olivia Hendrikx¹, Stephanie Fevrier¹, Ibrahim Mohamed¹, Chelsea DeCoste², Paris Moaf¹, Lawrence Ng¹, Deborah Levy¹, Linda Hiraki¹, Alene Toulany¹ and Andrea Knight¹, ¹The Hospital for Sick Children, Toronto, ON, Canada, ²IWK Health Centre, Halifax, NS, Canada
Background/Purpose: Adverse Childhood Experiences (ACEs) measure traumatic experiences in childhood. ACEs are associated with epigenetic changes, are known to increase stress response and inflammation, and…
Abstract Number: 0397 • ACR Convergence 2022
Aberrant Global DNA Methylation in Peripheral Blood Cell Subpopulations of Patients with Axial Spondyloarthritis
ERIC TOUSSIROT¹, Sebastien Pasquereau², Charline Vauchy³, Daniel Wendling⁴, Jean Charles Balblanc⁵, caroline Laheurte⁶, Marc Puyraveau⁷ and Georges Herbein², ¹CHU de Besançon, Besançon, France, ²EA EPILAB, Besancon, Besançon, France, ³INSERM CIC-1431, Besancon, Besançon, France, ⁴CHU, University Teaching Hospital, Besançon, France, ⁵Rhumatologie, Hopital Nord Franche Comté, Trevenans, France, ⁶EFS Bourgogne Franche Comté, Biomonotoring Plateform, Besançon, France, ⁷INSERM CIC-1431 CHU, Besançon, France
Background/Purpose: Axial spondyloarthritis (axSpA) corresponds to a group of chronic inflammatory diseases mainly affecting the axial skeleton. TNFa and IL-17A have been identified as key…
Abstract Number: 1173 • ACR Convergence 2022
Single-cell Multi-omic Analysis of a 3D Skin-Like Tissue Model Provides Insights into Molecular and Cellular Drivers of Systemic Sclerosis
Tamar Abel¹, Noelle Kosarek², Rezvan Parvizi³, Helen Jarnagin¹, Mengqi Huang⁴, Avi Smith⁵, Michael Mariani¹, Dillon Popovich⁶, Heetaek Yang⁷, Tammara Wood⁸, Jonathan Garlick⁹, Patricia Pioli⁷ and Michael Whitfield¹⁰, ¹Dartmouth College, Lebanon, NH, ²Dartmouth Geisel School of Medicine, Lebanon, NH, ³Dartmouth, Lebanon, NH, ⁴University of Pittsburgh, Pittsburgh, PN, ⁵Tufts University, Boston, MA, ⁶Dartmouth College, West Lebanon, NH, ⁷Geisel School of Medicine at Dartmouth, Lebanon, NH, ⁸Dartmouth College, Hanover, NH, ⁹Tufts University School of Dental Medicine, Boston, MA, ¹⁰Geisel School of Medicine, Lebanon, NH
Background/Purpose: Systemic Sclerosis (SSc) currently lacks reliable in vitro models of skin fibrosis constructed from all human cells. We have developed a skin-like tissue model of systemic…
Abstract Number: 0531 • ACR Convergence 2022
Development and Performance of a Diagnostic Precision Biomarker for Seronegative Rheumatoid Arthritis Based on DNA Methylation in Blood
Espen Riskedal¹, Karl Trygve Kalleberg¹, Arne Søraas², Maria Dahl Mjaavatten³, Grethe-Elisabeth Stenvik⁴, Joe Sexton⁴, Janis Neumann¹, Cathrine Lund Hadley¹, Guro Goll⁴, Silje Watterdal Syversen⁴, Håkon Bøås⁵, Jennifer Ruth Harris⁵, Astanand Jugessur⁵, Siri Lillegraven⁴ and Espen Haavardsholm⁴, ¹Age Labs AS, Oslo, Oslo, Norway, ²Age Labs AS, Eiksmarka, Norway, ³Diakonhjemmet Hospital, Haslum, Norway, ⁴Diakonhjemmet Hospital, Oslo, Norway, ⁵Norwegian Institute of Public Health, Oslo, Norway
Background/Purpose: Patients with seronegative rheumatoid arthritis (RA) exhibit no detectable antibodies, often resulting in delayed diagnosis and treatment initiation. A blood-based test, capable of detecting…
Abstract Number: 1175 • ACR Convergence 2022
Epigenetic Regulation of MicroRNA-126 in Scleroderma Is Associated with Upregulation of DNA Methyltransferase-1, Repression of Endothelial Nitric Oxide Synthase Expression, and Enhanced Platelet Adhesion to Endothelial Cells
Yongqing Wang and bashar Kahaleh, University of Toledo, Toledo, OH
Background/Purpose: SSc vasculopathy is characterized by endothelial injury and deficient endothelial-dependent vasodilation leading to occlusive and proliferative vascular outcomes. Platelet activation and elevated circulating platelet…
Abstract Number: 0603 • ACR Convergence 2022
Survivin-dependent Regulation of Bivalent Chromatin and Its Relevance for Adaptive Immunity
Venkataragavan Chandrasekaran¹, Nina Oparina², Karin Andersson², Malin Erlandsson², Maria-Jose Garcia-Bonete³, Maja Jensen⁴, Gergely Katona⁵ and Maria Bokarewa⁶, ¹Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden, ²Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Goteborg, Sweden, ³Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden, ⁴Department of Chemistry and Molecular Biology, Gothenburg, Sweden, ⁵Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden, ⁶Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
Background/Purpose: Bivalent chromatin (BvCR) is characterized by simultaneous binding of active and repressive modifications to the histone H3 proteins. Influencing expression of the genes, BvCR…
Abstract Number: 1621 • ACR Convergence 2022
Genome-wide Association Study in African American Systemic Sclerosis Patients Identifies a Novel Target – Transforming Growth Factor-β3 (TGFβ3)
Urvashi Kaundal¹, Julia Hartman², Emilee Stenson¹, Sarah Safran¹, Chloe Borden¹, Mousumi Sahu¹, Janet Wang¹, Andrea Conte¹, Ami Shah³, Maureen Mayes⁴, Ayo Doumatey⁵, Amy Bentley⁵, Daniel Shriner⁵, Robyn Domsic⁶, Thomas Medsger⁷, Paula Ramos⁸, Richard Silver⁸, Virginia Steen⁹, John Varga¹⁰, Vivien Hsu¹¹, Lesley Ann Saketkoo¹², Elena Schiopu¹³, Dinesh Khanna¹⁴, Jessica Gordon¹⁵, Lindsey Criswell¹⁶, Heather Gladue¹⁷, Chris Derk¹⁸, Elana Bernstein¹⁹, S. Louis Bridges, Jr.¹⁵, Victoria Shanmugam²⁰, Lorinda Chung²¹, Suzanne Kafaja²², Reem Jan²³, Marcin Trojanowski²⁴, Avram Goldberg²⁵, Benjamin Korman²⁶, Settara Chandrasekharappa⁵, Yongbing Zhao²⁷, Stephen Brooks²⁷, Stefania Dell'Orso¹, Adebowale Adeyemo⁵, Charles Rotimi⁵, Elaine Remmers⁵, Daniel Kastner⁵, Francesco Boin²⁸, Rafael Casellas²⁷, Fredrick Wigley²⁹ and Pravitt Gourh³⁰, ¹National Institutes of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, ²National Institutes of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Washington, DC, ³Johns Hopkins Rheumatology, Baltimore, MD, ⁴Division of Rheumatology and Clinical Immunogenetics, University of Texas McGovern Medical School, Houston, TX, ⁵National Human Genome Research Institute, Bethesda, MD, ⁶University of Pittsburgh, Pittsburgh, PA, ⁷University of Pittsburgh School of Medicine, Pittsburgh, PA, ⁸Medical University of South Carolina, Charleston, SC, ⁹Georgetown University School of Medicine, Washington, DC, ¹⁰University of Michigan, Ann Arbor, MI, ¹¹Rutgers-RWJ Medical School, South Plainfield, NJ, ¹²University Medical Center - Comprehensive Pulmonary Hypertension Center and ILD Clinic Programs // New Orleans Scleroderma and Sarcoidosis Patient Care & Research Centeris, New Orleans, LA, ¹³Michigan Medicine, Ann Arbor, MI, ¹⁴Division of Rheumatology, Department of Internal Medicine, Scleroderma Program, University of Michigan, Ann Arbor, MI, ¹⁵Hospital for Special Surgery, New York, NY, ¹⁶National Human Genome Research Institute, NIH, Bethesda, MD, ¹⁷Arthritis & Osteoporosis Consultants of the Carolinas, Charlotte, NC, ¹⁸University of Pennsylvania, Philadelphia, PA, ¹⁹Columbia University, New York, NY, ²⁰George Washington University, Great Falls, VA, ²¹Stanford University, Stanford, CA, ²²UCLA Department of Medicine, Division of Rheumatology, Los Angeles, CA, ²³University of Chicago, Chicago, IL, ²⁴Boston University School of Medicine, Boston, MA, ²⁵NYU Langone Medical Center - NYU Hospital for Joint Diseases, Lake Success, NY, ²⁶University of Rochester, Rochester, NY, ²⁷National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, MD, ²⁸Cedars-Sinai Medical Center, Los Angeles, CA, ²⁹Johns Hopkins University, Baltimore, MD, ³⁰National Institutes of Health, Bethesda, MD
Background/Purpose: Transforming Growth Factor-β (TGFβ) isoforms play an important role in extracellular matrix biology. Increased TGFβ-regulated gene signature has been observed in lesional skin and…

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