Abstracts tagged "Epigenetics"

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: 0607 • ACR Convergence 2022
Cadherin 6 Regulates Rheumatoid Arthritis Fibroblasts-Like Synoviocyte Aggressiveness
Camilla Machado¹, Hyeonjeong Lee², Sho Sendo³, Narayanan Perumal⁴, Wei Wang⁵, David Boyle⁵ and Gary S. Firestein⁶, ¹UCSD, San Diego, CA, ²University of California San Diego, San Diego, CA, ³University California, San Diego (UCSD), La Jolla, CA, ⁴Eli Lilly Company, San Diego, ⁵University of California San Diego, San Diego, ⁶University of California, San Diego, San Diego, CA
Background/Purpose: Rheumatoid arthritis (RA) fibroblast-like synoviocytes (FLS) display an aggressive behavior. Previous studies have implicated cadherins in FLS function in this phenotype, which are type…
Abstract Number: 1715 • ACR Convergence 2022
Ezh2 Knockout in B Cells Impairs Plasmablast Differentiation and Ameliorates Lupus-like Disease in MRL/lpr Mice
Xiaoqing Zheng¹, Mikhail Dozmorov², Colleen Strohlein¹, Sheldon Bastacky¹ and Amr Sawalha¹, ¹University of Pittsburgh, Pittsburgh, PA, ²Virginia Commonwealth University, Richmond, VA
Background/Purpose: Enhancer of zeste homolog 2 (EZH2) has been shown to regulate early B cell development and the differentiation of antibody secreting cells (ASCs). We…
Abstract Number: 0643 • ACR Convergence 2022
Subsetting SLE Patients Based on DNA Methylation at the Time of Disease Flare
Mary Horton¹, Joanne Nitithalm², Kimberly Taylor³, Laura Trupin⁴, Patricia Katz⁵, Jinoos Yazdany⁶, Maria Dall'Era⁷, Lisa Barcellos⁸, Lindsey Criswell⁹ and Cristina M Lanata¹⁰, ¹NIH/NHGRI, Oakland, CA, ²NIH/NHGRI, Bethesda, MD, ³University of Californi, San Francisco, San Francisco, CA, ⁴UC San Francisco, San Francisco, CA, ⁵UCSF, San Rafael, CA, ⁶UCSF, San Francisco, CA, ⁷University of California, Division of Rheumatology, San Francisco, CA, ⁸School of Public Health, UC Berkeley; National Human Genome Research Institute, National Institutes of Health, Berkeley, CA, ⁹National Human Genome Research Institute, NIH, Bethesda, MD, ¹⁰NIH/NHGRI, Washington, DC
Background/Purpose: Current treatments for SLE do not adequately prevent disease progression. This lack of efficacy, in part, relates to the molecular heterogeneity of disease. The…
Abstract Number: 1726 • ACR Convergence 2022
Impaired Dynamic X-Chromosome Inactivation Maintenance in T Lymphocytes Is a Feature of Spontaneous Lupus in Female Mice and Is Exacerbated in Female-Biased Disease Models
Nikhil Jiwrajka¹, Natalie Toothacre², Zachary Beethem², Sarah Sting², Katherine Forsyth², Amanda Driscoll², William Stohl³ and Montserrat Anguera², ¹Division of Rheumatology, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, ²Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, ³University of Southern California, Los Angeles, CA
Background/Purpose: SLE is highly female-biased, yet the molecular origins of this bias remain unclear. The X chromosome contains many immune-related genes, suggesting that X-linked epigenetic…
Abstract Number: 0923 • ACR Convergence 2022
Identification of Cell-Specific DNA Methylation Changes Associated with MTX Treatment Response in Rheumatoid Arthritis
Cameron Adams¹, Nisha Nair², Hong Quach¹, Diana Quach¹, Joanne Nititham³, Mary Nakamura⁴, Jonathan Graf⁵, Lindsey Criswell⁶ and Lisa Barcellos⁷, ¹University of California, Berkeley, Berkeley, CA, ²The University of Manchester, Manchester, United Kingdom, ³National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, ⁴UCSF/SFVAHCS, San Francisco, CA, ⁵Ucsf, San Francisco, CA, ⁶National Human Genome Research Institute, NIH, Bethesda, MD, ⁷School of Public Health, UC Berkeley; National Human Genome Research Institute, National Institutes of Health, Berkeley, CA
Background/Purpose: MTX is the recommended first treatment for rheumatoid arthritis (RA); however, only ~40% respond adequately to MTX. Significant joint damage can occur in the…
Abstract Number: 1727 • ACR Convergence 2022
BATF Represses BIM Expression to Sustain the T Cell Anergy Program
Philip Titcombe, Milagros Silva-Morales, Na Zhang and Daniel Mueller, University of Minnesota, Minneapolis, MN
Background/Purpose: T cell tolerance is essential for preventing autoimmune diseases and resolving inflammation. To maintain tolerance, CD4+ T cells recognizing self-antigens in the periphery can…
Abstract Number: 0999 • ACR Convergence 2022
Differences in Chromatin Accessibility Pre- and Post-Induction Therapy in Pediatric Lupus
Joyce Hui-Yuen¹, Kaiyu Jiang², Susan Malkiel³, Betty Diamond³ and James Jarvis⁴, ¹North Shore LIJ Health System, Great Neck, NY, ²University at Buffalo, Buffalo, NY, ³Feinstein Institutes for Medical Research, Manhasset, NY, ⁴Department of Pediatrics, University at Buffalo Clinical and Translational Research Center, 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: 1898 • ACR Convergence 2022
Radiographic Osteoarthritis Progression Can Be Predicted via Pyrosequencing Analysis of Baseline Peripheral Blood
Chris Dunn¹, Cassandra Velasco², Leoni Schlupp³, Emmaline Prinz³, Vladislav Izda⁴, Liubov Arbeeva⁵, Yvonne Golightly⁶, Amanda Nelson⁶ and Matlock Jeffries³, ¹University of Oklahoma Health Sciences Center, Edmond, OK, ²University of Oklahoma Health Sciences Center, Oklahoma City, OK, ³Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁴Oklahoma Medical Research Foundation, New York, NY, ⁵University of North Carolina Chapel Hill, Chapel Hill, NC, ⁶UNC School of Medicine, Chapel Hill, NC
Background/Purpose: Knee osteoarthritis (OA) is a heterogeneous disease characterized by a variety of clinical and molecular phenotypes. However, we do not yet have robust biomarkers…
Abstract Number: 1097 • ACR Convergence 2022
Intrinsic STAT1 Deficiency Underlies Proinflammatory Imprint of Naive CD4+ T Cells in Spondyloarthritis
Bilade CHERQAOUI¹, Frederic Cremazy¹, Marc Lauraine¹, Ghazal Shammas², Roula Said-Nahal³, Hendrick Mambu Mambueni⁴, Felicie Costantino², Marine Fourmont², Simon Glatigny², Luiza Maria Araujo² and Maxime Breban², ¹INSERM U1173, UFR Simone Veil, Versailles-Saint Quentin / Paris-Saclay University, Montigny-le-Bretonneux, France, ²1INSERM U1173, UFR Simone Veil, Versailles-Saint Quentin / Paris-Saclay University, Montigny-le-Bretonneux, France, ³Rheumatology Division - Ambroise Pare Hospital, APHP, Boulogne-Billancourt, France, ⁴Genomic Platform of Faculty of Health Simone Veil - UVSQ university, Montigny-le-Bretonneux, France
Background/Purpose: Spondyloarthritis (SpA) development is associated with type 3 immune response activation. In HLA-B27/human β2-microglobulin transgenic rat model (B27-rat), this might at least be related…
Abstract Number: 1975 • ACR Convergence 2022
Identifying MicroRNAs Associated with Neuropathic Pain in Patients with Rheumatoid Arthritis (RA)
Lissette Delgado-Cruzata¹, Milena Rodriguez Alvarez², Veronika Zenkeviciute³, Nickolas Almodovar³ and Toni-Ann Bravo³, ¹City University of New York, New York, NY, ²SUNY Downstate Medical Center, New York, NY, ³John Jay College, CUNY, New York, NY
Background/Purpose: Neuropathic pain is one of the most common clinical characteristics of rheumatoid arthritis (RA). It often does not subside with the use of DMARD,…
Abstract Number: 1116 • ACR Convergence 2022
Peripheral Blood DNA Methylation-based Machine Learning Models for Prediction of Knee Osteoarthritis Progression: Biospecimens and Data from the Osteoarthritis Initiative and Johnston County Osteoarthritis Project
Chris Dunn¹, Cassandra Sturdy², Cassandra Velasco³, Leoni Schlupp², Emmaline Prinz², Vladislav Izda⁴, Liubov Arbeeva⁵, Yvonne Golightly⁶, Amanda Nelson⁷ and Matlock Jeffries², ¹University of Oklahoma Health Sciences Center, Edmond, OK, ²Oklahoma Medical Research Foundation, Oklahoma City, OK, ³University of Oklahoma Health Sciences Center, Oklahoma City, OK, ⁴Oklahoma Medical Research Foundation, New York, NY, ⁵University of North Carolina Chapel Hill, Chapel Hill, NC, ⁶University of Nebraska Medical Center, Omaha, NE, ⁷University of North Carolina at Chapel Hill, Chapel Hill, NC
Background/Purpose: Knee osteoarthritis (OA) is a heterogeneous disease characterized by a variety of clinical and molecular phenotypes, for which there exist no widely-available biomarkers. We…
Abstract Number: 2019 • ACR Convergence 2022
Fine Mapping of the Sjögren’s Disease and Systemic Lupus Erythematosus DDX6-CXCR5 Risk Interval Reveals Common SNPs with Functional Significance in Immune and Salivary Gland Cells
Mandi Wiley¹, Bhuwan Khatri¹, Kandice Tessneer¹, Michelle Joachims¹, Anna Stolarczyk¹, Anna Nagel¹, Astrid Rasmussen¹, Professor Simon Bowman², Lida Radfar³, Roald Omdal⁴, Marie Wahren-Herlenius⁵, Blake Warner⁶, Torsten Witte⁷, Roland Jonsson⁸, Maureen Rischmueller⁹, Patrick Gaffney¹, Judith James¹, Lars Ronnblom¹⁰, Hal Scofield¹, Xavier Mariette¹¹, Fai Ng¹², Gunnel Nordmark¹⁰, Betty Tsao¹³ and Christopher Lessard¹, ¹Oklahoma Medical Research Foundation, Oklahoma City, OK, ²University Hospitals Birmingham, Birmingham, United Kingdom, ³University of Oklahoma Health Sciences Center, Oklahoma City, OK, ⁴Stavanger University, Stavanger, Norway, ⁵Karolinska Institutet, Stockholm, Sweden, ⁶National Institutes of Health, Bethesda, MD, ⁷MH-Hannover, Hannover, Germany, ⁸University of Bergen, Bergen, Norway, ⁹RheumatologySA, Adelaide, Australia, ¹⁰Uppsala University, Uppsala, Sweden, ¹¹Paris-Saclay University, Rueil Malmaison, Ile-de-France, France, ¹²Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom, ¹³Medical University of South Carolina, Charleston, SC
Background/Purpose: Sjögren's Disease (SjD) and Systemic Lupus Erythematosus (SLE) share several characteristics and have similar genome-wide significant associations in the DDX6-CXCR5 locus. Fine mapping of…
Abstract Number: 1120 • ACR Convergence 2022
Transcriptome-Wide Association Study of Sjögren’s Disease Risk Alleles Identifies Novel Genes with Altered Expression in Minor Salivary Gland and Other Tissues
Marcin Radziszewski¹, Mandi Wiley¹, Bhuwan Khatri¹, Kandice Tessneer¹, Astrid Rasmussen¹, Professor Simon Bowman², Lida Radfar³, Roald Omdal⁴, Marie Wahren-Herlenius⁵, Blake Warner⁶, Torsten Witte⁷, Roland Jonsson⁸, Maureen Rischmueller⁹, Patrick Gaffney¹, Judith James¹, Lars Ronnblom¹⁰, R. Hal Scofield³, Xavier Mariette¹¹, Marta Alarcon-Riquelme¹², Fai Ng¹³, Gunnel Nordmark¹⁰, Umesh Deshmukh¹, A. Darise Farris¹ and Christopher Lessard¹, ¹Oklahoma Medical Research Foundation, Oklahoma City, OK, ²University Hospitals Birmingham, Birmingham, United Kingdom, ³University of Oklahoma Health Sciences Center, Oklahoma City, OK, ⁴Stavanger University, Stavanger, Norway, ⁵Karolinska Institutet, Stockholm, Sweden, ⁶National Institutes of Health, Bethesda, MD, ⁷MH-Hannover, Hannover, Germany, ⁸University of Bergen, Bergen, Norway, ⁹RheumatologySA, Adelaide, Australia, ¹⁰Uppsala University, Uppsala, Sweden, ¹¹Paris-Saclay University, Rueil Malmaison, Ile-de-France, France, ¹²Center for Genomics and Oncological Research (GENYO), Granada, Spain, ¹³Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
Background/Purpose: Sjögren's disease (SjD) is an autoimmune disease characterized by reduced function of exocrine glands, but also has systemic manifestations affecting multiple organs, including abnormal…
Abstract Number: 2020 • ACR Convergence 2022
Autophagy-related Risk Loci in Systemic Lupus Erythematous and Sjögren’s Disease
Anna Nagel¹, Bhuwan Khatri¹, Marcin Radziszewski¹, Mandi Wiley¹, Anna Stolarczyk¹, Michelle Joachims¹, Kandice Tessneer¹, Astrid Rasmussen¹, Professor Simon Bowman², Lida Radfar³, Roald Omdal⁴, Marie Wahren-Herlenius⁵, Blake Warner⁶, Torsten Witte⁷, Roland Jonsson⁸, Maureen Rischmueller⁹, Patrick Gaffney¹, Judith James¹, Lars Ronnblom¹⁰, Hal Scofield¹, Xavier Mariette¹¹, Marta Alarcon-Riquelme¹², Fai Ng¹³, Gunnel Nordmark¹⁰, Qing Sun¹⁴, Kwangwoo Kim¹⁵, Sang-Cheol Bae¹⁶, Betty Tsao¹⁴, A. Darise Farris¹ and Christopher Lessard¹, ¹Oklahoma Medical Research Foundation, Oklahoma City, OK, ²University Hospitals Birmingham, Birmingham, United Kingdom, ³University of Oklahoma Health Sciences Center, Oklahoma City, OK, ⁴Stavanger University, Stavanger, Norway, ⁵Karolinska Institutet, Stockholm, Sweden, ⁶National Institutes of Health, Bethesda, MD, ⁷MH-Hannover, Hannover, Germany, ⁸University of Bergen, Bergen, Norway, ⁹RheumatologySA, Adelaide, Australia, ¹⁰Uppsala University, Uppsala, Sweden, ¹¹Paris-Saclay University, Rueil Malmaison, Ile-de-France, France, ¹²Center for Genomics and Oncological Research (GENYO), Granada, Spain, ¹³Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom, ¹⁴Medical University of South Carolina, Charleston, SC, ¹⁵Kyung Hee University, Seoul, Republic of Korea, ¹⁶Hanyang University Medical Center, Seoul, Republic of Korea
Background/Purpose: Dysregulated autophagy is implicated in systemic lupus erythematous (SLE) and Sjögren's disease (SjD), including dysregulated expression of Autophagy-related gene 5 (ATG5) and Autophagy Related…

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