Abstracts tagged "Epigenetics"

Abstract Number: 1654 • ACR Convergence 2024
CRTAC1 in Osteoarthritis: Implications for Disease Severity and miRNA Regulation
Aneta Prokopcová¹, Jiri Baloun², Adéla Navrátilová³, Klára Mocová², Lucia Ondrejčáková⁴, Jana Juhaszova², Tereza Kropáčková¹, Hana Storkanova⁵, Michal Tomcik⁵, Jindriska Gatterova², Olga Sleglova², Olga Ruzickova², Eva Kriegova⁶, Jiri Gallo⁷, Rastislav Ballay⁸, Petr Fulin⁹, Jiří Vencovský¹ and Ladislav Šenolt¹, ¹Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic, ²Institute of Rheumatology, Prague, Czech Republic, ³1st Faculty of Medicine, Charles University and Institute of Rheumatology in Prague, Hlavní mesto Praha, Czech Republic, ⁴Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, ⁵Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic, Prague, Czech Republic, ⁶Department of Immunology, Faculty of Medicine and Dentistry, Palacky University and University Hospital, Olomouc, Czechia, Olomouc, Czech Republic, ⁷Department of Orthopaedics, University Hospital Olomouc, Olomouc, Czech Republic, ⁸1st Faculty of Medicine, Charles University, Prague, Czechia, Prague, Czech Republic, ⁹1st Department of Orthopaedics, First Faculty of Medicine of Charles University and Motol University Hospital, Prague, Czechia, Prague, Czech Republic
Background/Purpose: Cartilage acidic protein1 (CRTAC1) is a potential biomarker linked to osteoarthritis (OA) and cartilage degeneration. This study aimed to compare CRTAC1 levels in the…
Abstract Number: 1806 • ACR Convergence 2024
Bisphenol a Methylation Scores Associate with SLE and ClinicalSubphenotypes
Holme Vestin¹, Nina Oparina², Maija-Leena Eloranta¹, Martina Frodlund³, Iva Gunnarsson⁴, Christopher Sjowall⁵, Elisabet Svenungsson⁶, Lars Rönnblom¹, Ann-Christine Syvänen¹, Johanna Sandling¹, Juliana Imgenberg-Kreuz¹ and Dag Leonard¹, ¹Uppsala university, Uppsala, Sweden, ²UU, Uppsala, Sweden, ³Department of Biomedical and Clinical Sciences, Division of Inflammation and Infection/Rheumatology, Linköping University, Linköping, Sweden, ⁴Karolinska Institute, Stockholm, Sweden, ⁵Linköping University, Linköping, Sweden, ⁶Karolinska Institutet, Stockholm, Sweden
Background/Purpose: Systemic Lupus Erythematosus (SLE) is characterized by production of auto-antibodies, immune complex formation and an activated type I interferon system. Both genetic and environmental…
Abstract Number: 1856 • ACR Convergence 2024
Distinct Proliferative and Special Properties of Peripheral Helper T Cells in RA Synovium
Yuki Masuo¹, Akinori Murakami¹, Rinko Akamine¹, Osamu Iri¹, Koichi Murata¹, Kohei Nishitani¹, Hiromu Ito¹, Takayuki Fujii¹, Ryu Watanabe², Takeshi Iwasaki¹, Shinichiro Nakamura¹, Shinichi Kuriyama¹, Yugo Morita¹, Yasuhiro Murakawa¹, Chikashi Terao³, Yukinori Okada⁴, Motomu Hashimoto², Shuichi Matsuda⁵, Hideki Ueno¹ and Hiroyuki Yoshitomi¹, ¹Kyoto University, Kyoto, Japan, ²Osaka Metropolitan University, Osaka, Japan, ³RIKEN, Tokyo, Japan, ⁴The University of Tokyo / Osaka University / RIKEN, Tokyo, Japan, ⁵Department of Advanced Medicine for Rheumatic Diseases, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan
Background/Purpose: Tertiary lymphoid structures (TLSs) are organized aggregates of immune cells that are frequently observed in the target tissues of chronic diseases. In patients with…
Abstract Number: 2498 • ACR Convergence 2024
The Methylome Profile of B-cells as a Biomarker of Nephritis in IgA Vasculitis
Veronica Pulito-Cueto¹, Joao Carlos Batista-Liz¹, Laura Carmen Terron², Iván Fernández Rengel³, María Sebastián Mora-Gil⁴, María Teresa Leonardo⁵, Ana Peñalba⁵, Luis Martín-Penagos⁶, Lara Belmar-Vega⁷, Cristina Gomez-Fernandez⁸, Ligia Gabrie-Rodriguez⁹, Rafael Gálvez Sánchez⁹, Luis Caminal-Montero¹⁰, Ana Turrion Nieves¹¹, Patricia Quiroga Colina¹², Esther Vicente-rabaneda¹³, Belén Sevilla-Pérez¹⁴, José Luis Callejas¹⁵, Eduardo Andrés-León², Javier Martin¹⁶, Ana María Marquez¹⁷, Santos Castañeda¹³, Ricardo Blanco-Alonso¹⁸ and Raquel Lopez-mejias¹, ¹IDIVAL, Santander, Spain, ²Unidad de Bioinformática, Instituto de Parasitología y Biomedicina ‘López-Neyra’, CSIC, Granada, Spain, ³Bioinformatics Unit, Institute of Parasitology and Biomedicine López-Neyra (IPBLN), CSIC, GENYO, Cen, Granada, Spain, ⁴Immunopathology Group, IDIVAL, Santander, Spain, ⁵Division of Pediatrics, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ⁶Immunopathology Group, IDIVAL. Division of Nephrology, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ⁷Immunopathology Group, IDIVAL. Division of Nephrology, Hospital Universitario Marqués de Valdecilla, Santander, ⁸Division of Dermatology, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ⁹Immunopathology Group, IDIVAL. Division of Rheumatology, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ¹⁰Internal Medicine Department, Hospital Universitario Central de Asturias, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain, ¹¹Rheumatology Department, Hospital Universitario Virgen de la Vega, Salamanca, Spain, ¹²Division of Rheumatology, Hospital Universitario de La Princesa, Madrid, Spain, ¹³Hospital Universitario de La Princesa, Madrid, Spain, ¹⁴Division of Pediatrics, Hospital Universitario San Cecilio, Granada, Spain, ¹⁵Systemic Autoimmune Diseases Unit, Hospital Clinico San Cecilio, Instituto de Investigación Biosanitaria de Granada ibs.GRANADA, Granada, Spain, ¹⁶Instituto de Parasitología y Biomedicina ‘López-Neyra’, CSIC, PTS Granada, Spain, Granada, Spain, ¹⁷Instituto de Parasitología y Biomedicina ‘López-Neyra’, CSIC, PTS Granada, Granada, Spain, ¹⁸Division of Rheumatology, Hospital Universitario Marqués de Valdecilla. IDIVAL, Immunopathology group, Santander, Spain
Background/Purpose: Nephritis is the main cause of long-term morbidity and mortality in patients with Immunoglobulin-A vasculitis (IgAV) [1, 2]. Unfortunately, sensitive, specific, and non-invasive biomarkers…
Abstract Number: 2599 • ACR Convergence 2024
Xist Deletion in B Cells Results in Systemic Lupus Erythematosus Phenotypes
Claudia Lovell¹, Nikhil Jiwrajka², Hayley Amerman³, Michael Cancro⁴ and Montserrat Anguera⁵, ¹Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, ²Hospital of the University of Pennsylvania, Philadelphia, PA, ³University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, ⁴Perelman School of Medicine, Philadelphia, PA, ⁵University of Pennsylvania, Philadelphia, PA
Background/Purpose: Systemic lupus erythematosus (SLE) exhibits a strong female sex bias but the mechanisms underlying this bias are not well understood. Epidemiological studies demonstrate that…
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: 0046 • ACR Convergence 2023
Circulating Monocytes in RA, SSc, and SLE Have Radically Altered and Unique Transcriptional & Epigenetic Profiles
Kieran Woolcock¹, Nila Servaas², Maarten van der Kroef², Stephen Delaney³, John Cole¹, Aridaman Pandit² and Carl Goodyear¹, ¹University of Glasgow, Glasgow, United Kingdom, ²University Medical Center Utrecht and Utrecht University, Utrecht, Netherlands, ³Research and Early Development, Respiratory and Immunology (R&I), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
Background/Purpose: Rheumatoid arthritis (RA), Systemic lupus erythematosus (SLE), and Systemic sclerosis (SSc) are all systemic rheumatic autoimmune diseases with a dysregulated myeloid compartment. Monocytes are…
Abstract Number: 0047 • ACR Convergence 2023
Identification of Specific Monocyte Epigenetic Signatures in Sarcoidosis and Tuberculosis
Marie Robert¹, Nader Yatim², Arthur Mageau³, Nicolas Charles⁴, Tiphaine Goulenok², Tom Dott¹, Violaine Saint Andre¹, Darragh Duffy¹ and Karim Sacre³, ¹Institut Pasteur Paris, Paris, France, ²Assistance Publique Hopitaux de Paris, Paris, France, ³Université Paris Cité, Paris, France, ⁴INSERM, Paris, France
Background/Purpose: Sarcoidosis is an inflammatory disease characterized by granuloma tissue lesions that most commonly affect the lungs, but can target any other organ. While the…
Abstract Number: 0080 • ACR Convergence 2023
Pharmacological Inhibition of PRMT5 Demonstrates Broad Efficacy in Multiple Preclinical Models of Autoimmunity and Inflammation by Suppressing Th1, Th17 and TNF-Mediated Inflammatory Responses
Neha Bhagwat¹, Kumar Penmetsa², Matt Devalaraja³, Suzana Marusic⁴, Cornelia M. Weyand⁵, Shozo Ohtsuki⁶, Peggy Scherle¹ and Kris Vaddi¹, ¹Prelude Therapeutics, Inc, Wilmington, DE, ²Thermo Fisher Scientific, Philadelphia, PA, ³Nipuna Therapeutics, Waltham, MA, ⁴Hooke Laboratories LLC, Lawrence, MA, ⁵Mayo Clinic School of Medicine and Stanford University, Rochester, MN, ⁶Mayo Clinic College of Medicine and Science, Stanford University School of Medicine, Rochester, MN
Background/Purpose: Protein arginine methyltransferase 5 (PRMT5) is the major type II PRMT that catalyzes the formation of symmetrical dimethyl arginine (SDMA) on protein substrates and…
Abstract Number: 0091 • ACR Convergence 2023
Impaired X-Chromosome Inactivation Maintenance in T Cells Is Associated with Features of Reduced Disease Severity in a Toll-Like Receptor 7-Driven Model of Systemic Autoimmunity
Nikhil Jiwrajka¹, Zowie Searcy², Claudia Lovell², Natalie Toothacre², Katherine Forsyth² and Montserrat Anguera², ¹Divison of Rheumatology, Department of Medicine, Hospital of the University of Pennsylvania, Phildelphia, PA, ²Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA
Background/Purpose: Many systemic autoimmune rheumatic diseases, including systemic lupus erythematosus (SLE), Sjögren's syndrome, and systemic sclerosis are highly female-biased. Although these diseases are more prevalent…
Abstract Number: 0914 • ACR Convergence 2023
Transcription Factor RFX1 Promotes M1 Macrophage Polarization in Systemic Lupus Erythematosus via Regulating APOBEC3A
shuang Yang¹, Pei Du¹, Sujie Jia² and Ming Zhao², ¹Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, China, ²Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
Background/Purpose: Aberrant macrophage polarization is generally present in autoimmune diseases. Overwhelming M1 macrophage induces the continuous progression of inflammation, which is one of the vital…

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