Abstracts tagged "Epigenetics"

Abstract Number: 0542 • ACR Convergence 2021
Functional Characterization of Glycoprotein Nonmetastatic Melanoma Protein B in Scleroderma Fibrosis
Pamela Palisoc¹, Leah Vaikutis¹, Ellen Model¹, Morgan Omara¹, Dinesh Khanna¹, Eliza Pei-Suen Tsou¹ and Amr Sawalha², ¹University of Michigan, Ann Arbor, MI, ²University of Pittsburgh, Pittsburgh, PA
Background/Purpose: Glycoprotein nonmetastatic melanoma protein B (GPNMB) is widely expressed on stromal cells and immune cells. It is involved in various cell functions such as…
Abstract Number: 0543 • ACR Convergence 2021
Novel Insights into Systemic Sclerosis Using a Sensitive Computational Method to Analyze Whole-genome Bisulfite Sequencing Data
Jeffrey Yu¹, Tianyuan Lu¹, Kaiqiong Zhao¹, Kathleen Oros Klein¹, Maximilien Lora², Ines Colmegna³, Celia MT Greenwood⁴ and Marie Hudson², ¹Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC, Canada, ²McGill University, Montréal, QC, Canada, ³The Research Institute of the McGill University Health Centre, Montréal, QC, Canada, ⁴Epidemiology, Biostatistics and Occupational Health / Faculty of Medicine and Health Sciences / McGill University, Montréal, QC, Canada
Background/Purpose: While the etiology of systemic sclerosis (SSc) remains largely unknown, epigenetic dysregulation including abnormal DNA methylation is thought to contribute to its onset and…
Abstract Number: 0545 • ACR Convergence 2021
SIRT1 Modulates the Senescent Phenotype in Scleroderma Endothelial Cells
Ellen Model, Morgan Omara, Pamela Palisoc, Dinesh Khanna and Eliza Pei-Suen Tsou, University of Michigan, Ann Arbor, MI
Background/Purpose: Vascular abnormalities in systemic sclerosis (SSc) are characterized by injury to vascular wall and extensive damage of the microvessels. It has been shown that…
Abstract Number: 0559 • ACR Convergence 2021
Targeting NNMT as a Novel Metabolic Approach to Treat Systemic Sclerosis
M.Asif Amin¹, Bo Shi², Pei-Suen Tsou¹, Swarna Bale¹, Phillip Campbell¹, Mikel Gurrea-Rubio¹, Mark Eckert³, Ernst Lengyel³, Johann Gudjonsson⁴ and Varga John¹, ¹University of Michigan, Ann Arbor, MI, ²Nothwestern university, Chicago, IL, ³University of chicago, Chicago, IL, ⁴Department of Dermatology, University of Michigan, Ann Arbor, MI
Background/Purpose: Fibrosis, the hallmark of systemic sclerosis (SSc), is associated with metabolic and epigenetic alterations that are incompletely characterized. Our laboratory had previously implicated dysregulated…
Abstract Number: 1105 • ACR Convergence 2021
Discovering Variants in Suspected Monogenic Systemic Inflammatory Disease: An Adult Case Series
Jason An¹, Madeline Couse¹, Dilan Dissanayake², Daniela Dominguez², Ronald Laxer¹, Christian Marshall¹, Johannes Roth³, Robert Rottapel⁴ and Linda Hiraki², ¹SickKids, Toronto, ON, Canada, ²The Hospital for Sick Children, Toronto, ON, Canada, ³University of Ottawa, Ottawa, ON, Canada, ⁴St Michael's Hospital, Toronto, ON, Canada
Background/Purpose: Monogenic systemic inflammatory diseases (MSID) are a heterogeneous group of rare conditions caused by single gene variants leading to immune dysregulation. Diagnostic yield of…
Abstract Number: 1263 • ACR Convergence 2021
Treatment of Pediatric Lupus Is Associated with Significant Re-Organization of B Cell Chromatin
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, ³Northwell Health, Manhasset, NY, ⁴University at Buffalo Jacobs School of Medicine, Buffalo, NY
Background/Purpose: Systemic lupus erythematosus (SLE) may be triggered by gene-environment interactions. Data remain scarce on how epigenetic variance contributes to disease risk in pediatric SLE…
Abstract Number: 1470 • ACR Convergence 2021
Cartilage Epigenetic Changes Induced by Microbial DNA Amplified from Human OA Samples
Vladislav Izda¹, Christopher Dunn², Cassandra Sturdy¹, Jake Martin¹, Cassandra Velasco², Paul Jacob³ and Matlock Jeffries¹, ¹Oklahoma Medical Research Foundation, Oklahoma City, OK, ²University of Oklahoma Health Sciences Center, Oklahoma City, OK, ³Oklahoma Joint Reconstruction Institute, Oklahoma City, OK
Background/Purpose: Strong links between epigenetic changes, particularly alterations in DNA methylation, have been linked with the onset and progression of knee osteoarthritis (OA); however, the…
Abstract Number: 1480 • ACR Convergence 2021
LncRNA XIST Alters the Balance of Peripheral Blood Immune Cells in Systemic Lupus Erythematosus by Regulating the miR-17-92/OFLM4 and CEACAM8 Axis
Qi Cheng, Mo Chen, xin Chen, peiyu zhang, huaxiang wu and yan du, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (People's Republic)
Background/Purpose: X-inactive-specific transcript (XIST) has been shown to silence linked genes on the X chromosome that may be related to the pathogenesis of systemic lupus…
Abstract Number: 1935 • ACR Convergence 2021
Skewed Escape from X-inactivation: Insights into the Female Bias of Sjögren’s Syndrome
Teressa Shaw¹, Wei Zhang², Sara McCoy³, Xueer Qiu¹, Adam Pagenkopf¹, Robert Hal Scofield⁴, Jacques Galipeau³ and Yun Liang¹, ¹University of Wisconsin-Madison, Madison, WI, ²University of California San Diego, La Jolla, CA, ³University of Wisconsin, Madison, WI, ⁴Oklahoma Medical Research Foundation, Oklahoma City, OK
Background/Purpose: Many autoimmune diseases feature increased prevalence in females, with primary Sjögren's syndrome (pSS) being the most female-predominant autoimmune disease with a female-to-male ratio of…
Abstract Number: 0350 • ACR Convergence 2021
EPI-SIGN: Epigenetic SLE Indicators of Glomerular Nephritis
Ashira Blazer¹, Olusola Ayanlowo², Will Liao³, Dzifa Dey⁴, Jasmin Divers⁵, Uyiekpen Ima-Edomwonyin⁶, Hakeem Olaosebikan⁷, Cristina Lanata⁸, Girish Nadkarni⁹, Jill Buyon¹, Peter Izmirly¹⁰ and Timothy Niewold¹¹, ¹NYU School of Medicine, New York, NY, ²College of Medicine University of Lagos, New York, NY, ³New York Genome Center, New York, NY, ⁴University of Ghana, Accra, Ghana, ⁵NYU Langone Hospital - Long Island, Mineola, NY, ⁶Lagos State University Teaching Hospital, Lagos, Nigeria, ⁷Lagos University State Teaching Hospital, Lagos, Nigeria, ⁸University of California San Francisco, Moss Beach, CA, ⁹Icahn School of Medicine at Mount Sinai, New York, NY, ¹⁰New York University School of Medicine, New York, NY, ¹¹Colton Center for Autoimmunity NYU School of Medicine, New York, NY
Background/Purpose: Systemic Lupus Erythematosus (SLE) is more common and severe in those of African Ancestry (AA) who, relative to Europeans, are twice as likely to…
Abstract Number: 0030 • ACR Convergence 2020
Distinct DNA Methylation Patterns of Rheumatoid Arthritis Peripheral Blood and Synovial Tissue T Cells
Rizi Ai¹, Gary Firestein², David Boyle³ and Wei Wang⁴, ¹University of California San Diego, San Diego, CA, ²University of California, San Diego, La Jolla, CA, ³UCSD, La Jolla, CA, ⁴UCSD, La Jolla
Background/Purpose: To understand the epigenetic patterns of T cells accumulated in rheumatoid arthritis (RA) synovium, we characterized DNA methylation of CD3+ T cells in peripheral…
Abstract Number: 0036 • ACR Convergence 2020
Molecular Phenotyping of Late-Stage Knee Osteoarthritis Synovium Through Total RNA-Sequencing
Anusha Ratneswaran¹, Chiara Pastrello¹, Pratibha Potla², Osvaldo Espin-Garcia², Starlee Lively², Anthony Perruccio³, Raj Rampersaud², Rajiv Gandhi² and Mohit Kapoor⁴, ¹University Health Network, Toronto, ON, Canada, ²Krembil RI, Toronto, Canada, ³Krembil Research Institute, UHN; University of Toronto, Toronto, ON, Canada, ⁴Krembil RI, Toronto, ON, Canada
Background/Purpose: Knee Osteoarthritis (OA) is a painful, disabling condition and molecular mechanisms underlying this disease are poorly understood. In recent years, OA is increasingly viewed…
Abstract Number: 0494 • ACR Convergence 2020
Genetic-epigenetic Interaction and the Relationship Between DNA Methylation Patterns and Disease Activity in a Longitudinal Cohort of Lupus Patients
Patrick Coit¹, Lourdes Ortiz-Fernandez², Emily Lewis³, W. Joseph McCune³, Kathleen Maksimowicz-McKinnon⁴ and Amr Sawalha², ¹University of Pittsburgh and University of Michigan, Pittsburgh, PA, ²University of Pittsburgh, Pittsburgh, PA, ³University of Michigan, Ann Arbor, MI, ⁴Henry Ford Hospital, Detroit
Background/Purpose: Genetic factors and epigenetic dysregulation are implicated in the pathogenesis of lupus. We performed a longitudinal analysis of DNA methylation in lupus patients for…
Abstract Number: 0782 • ACR Convergence 2020
Epigenetic Regulation of Metabolic Transporters in Rheumatoid Arthritis Fibroblast-Like Synoviocytes
Brian Pedersen¹, Rizi Ai¹, Alyssa Torres¹, Wei Wang¹, Gary Firestein² and Monica Guma³, ¹University of California San Diego, La Jolla, ²University of California, San Diego, La Jolla, CA, ³Division of Rheumatology, University of California San Diego, Department of Medicine, Autonomous University of Barcelona, La Jolla, CA
Background/Purpose: Epigenetic changes contribute to the pathogenesis of rheumatoid arthritis (RA) and a comprehensive epigenomic characterization of RA fibroblast-like synoviocytes (FLS) has recently been described.…
Abstract Number: 0837 • ACR Convergence 2020
Deletion of miR-223 Exacerbates Lupus Nephritis by Targeting S1pr1 in Faslpr/lpr Mice
Sumie Hiramatsu Asano¹, Tomoyuki Mukai², Yoshitaka Morita³ and Jun Wada⁴, ¹Kawasaki Medical School/Department of Rheumatology, Kurashiki city, Japan, ²Kawasaki Medical School, Kurashiki-shi, Okayama, Japan, ³Kawasaki Medical School/Department of Rheumatology, Kurashiki, Okayama, Japan, ⁴Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences., Okayama city, Japan
Background/Purpose: To identify new candidate genes regulated by micro RNAs (miRNAs) and involved in the pathogenesis of systemic lupus erythematosus (SLE), we integrated miRNA and…

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