Abstracts tagged "Epigenetics"

Abstract Number: 137 • 2017 Pediatric Rheumatology Symposium
Chromatin Landscapes and Genetic Risk For Juvenile Idiopathic Arthritis
James Jarvis¹, Lisha Zhu², Lai Ping Wong³, Tao Liu⁴, Kaiyu Jiang³ and Yanmin Chen³, ¹Pediatrics, SUNY Buffalo School of Medicine, Buffalo, NY, ²Biochemistry, University at Buffalo, Buffalo, NY, ³Pediatrics, University at Buffalo, Buffalo, NY, ⁴Department of Biochemistry, University at Buffalo, Buffalo, NY
Background/Purpose: The transcriptomes of peripheral blood cells in children with juvenile idiopathic arthritis (JIA) show distinct transcriptional aberrations that suggest impairment of transcriptional regulation. To…
Abstract Number: 647 • 2016 ACR/ARHP Annual Meeting
Genomic and Epigenetic Bioinformatics Demonstrate Dual TNF-α and IL17A Target Engagement By ABT-122, and Suggest Mainly TNF-α–Mediated Relative Target Contribution to Drug Response in MTX-IR Rheumatoid Arthritis Patients
Robert W. Georgantas III¹, Melanie Ruzek², Justin Wade Davis¹, Feng Hong¹, Elizabeth Asque¹, Kenneth Idler¹, Heikki T. Mansikka¹, Benoit Guerette¹ and Jeffrey F. Waring¹, ¹AbbVie Inc., North Chicago, IL, ²Immunology Discovery, AbbVie, Worcester, MA
Background/Purpose: ABT-122 is a dual variable domain (DVD-Ig) biologic which inhibits TNF-α and IL17A. In a 12-wk phase 2 study (NCT02141997) in MTX-IR patients (pts)…
Abstract Number: 1093 • 2016 ACR/ARHP Annual Meeting
DNA Methylation Defines Joint Specific Differences in Synovial Fibroblasts from OA and RA Patients
Emmanuel Karouzakis¹, Mojca Frank Bertoncelj², Kerstin Klein¹, Christoph Kolling³, Renate E. Gay¹, Steffen Gay¹ and Caroline Ospelt¹, ¹Center of Experimental Rheumatology, University Hospital Zurich, Zurich, Switzerland, ²Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland, ³Schulthess Clinic, Zurich, Switzerland
Background/Purpose: Recent studies revealed epigenetic changes in DNA methylation associated with rheumatoid arthritis (RA) synovial fibroblasts (SF). In addition, we have shown that SF exhibit…
Abstract Number: 1566 • 2016 ACR/ARHP Annual Meeting
Histone Lysine Methylation and STAT3 Differentially Regulate Constitutive and IL-6-Induced MMPs Gene Activation in Rheumatoid Arthritis Synovial Fibroblasts
Yasuto Araki^1,2, Takuma Tsuzuki Wada^2,3, Yoshimi Aizaki^1,2, Kazuhiro Yokota¹, Hiroshi Kajiyama¹, Yu Funakubo Asanuma¹, Kojiro Sato¹, Hiromi Oda⁴ and Toshihide Mimura^1,2, ¹Department of Rheumatology and Applied Immunology, Faculty of Medicine, Saitama Medical University, Saitama, Japan, ²Project Research Division, Research Center for Genomic Medicine, Saitama Medical University, Saitama, Japan, ³Department of Rheumatology and Applied Immunology, Faculty of Medicine, Saitama Medical University, Iruma, Japan, ⁴Orthopedic Surgery, Faculty of Medicine, Saitama Medical Univeristy, Morohongo Moroyama, Japan
Background/Purpose: Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease that causes progressive joint destruction. In spite of the modern medications, including biologic reagents, it…
Abstract Number: 1665 • 2016 ACR/ARHP Annual Meeting
Validation of Germ Line Epigenetic Variants Associated with Psoriatic Disease
Remy Pollock¹, Laila Zaman¹, Vinod Chandran² and Dafna D Gladman³, ¹University of Toronto, Toronto Western Hospital, Toronto, ON, Canada, ²Rheumatology, University of Toronto, Toronto Western Hospital, Toronto, ON, Canada, ³University of Toronto, Toronto, ON, Canada
Background/Purpose: Heritable epigenetic phenomena may play a role in the parent-of-origin effect observed in psoriasis and psoriatic arthritis (PsA). A previous epigenome-wide association study (EWAS)…
Abstract Number: 1825 • 2016 ACR/ARHP Annual Meeting
the Non-Coding Genome and the Genetics of Systemic Lupus
Joyce Hui-Yuen¹, Lisha Zhu², Lai Ping Wong³, Kaiyu Jiang⁴, Yanmin Chen⁴, Tao Liu⁵ and James Jarvis⁶, ¹North Shore-Long Island Jewish Health System, Lake Success, NY, ²Biochemistry, University at Buffalo, Buffalo, NY, ³Pediatrics, University at Buffalo, Buffalo, NY, ⁴Pediatrics, The University at Buffalo, Buffalo, NY, ⁵Department of Biochemistry, University at Buffalo, Buffalo, NY, ⁶Pediatrics, SUNY Buffalo School of Medicine, Buffalo, NY
Background/Purpose: Systemic lupus erythematosus (SLE) is a multi-system, complex disease believed to be triggered by gene-environment interactions. While we have made considerable progress in investigation…
Abstract Number: 2033 • 2016 ACR/ARHP Annual Meeting
A Multi-Dimensional Genomic Map for Polyarticular Juvenile Idiopathic Arthritis
James Jarvis¹, Lisha Zhu², Kaiyu Jiang³, Michael Buck², Yanmin Chen³, Halima Moncrieffe⁴, Laura Brungs⁴, Tao Liu⁵ and Ting Wang⁶, ¹Pediatrics, SUNY Buffalo School of Medicine, Buffalo, NY, ²Biochemistry, University at Buffalo, Buffalo, NY, ³Pediatrics, University at Buffalo, Buffalo, NY, ⁴Rheumatology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ⁵Department of Biochemistry, University at Buffalo, Buffalo, NY, ⁶Genetics, Washington University School of Medicine, St. Louis, MO
Background/Purpose: Polyarticular juvenile idiopathic arthritis (JIA) is a complex trait characterized by gene-environment interactions. While we are beginning to identify multiple genomic regions associated with…
Abstract Number: 2556 • 2016 ACR/ARHP Annual Meeting
Deficient Expression of the Novel Rheumatoid Arthritis (RA) Risk Gene, LBH, Induces S Phase Arrest in RA Fibroblast-like Synoviocytes (FLS)
Shinji Matsuda¹, Deepa Hammaker², Steven Dowdy³, David L. Boyle⁴ and Gary Firestein⁵, ¹Medicine, UC San Diego, La Jolla, CA, ²Division of Rheumatology, Allergy and Immunology, UCSD School of Medicine, La Jolla, CA, ³UC San Diego School of Medicine, La Jolla, CA, ⁴Division of Rheumatology, Allergy and Immunology, University of California, San Diego, La Jolla, CA, ⁵Medicine, UCSD, La Jolla, CA
Background/Purpose: LBH (Limb-bud and heart development) was recently identified as an RA risk gene that has abnormally methylated loci and a functional enhancer SNP in…
Abstract Number: 3119 • 2016 ACR/ARHP Annual Meeting
Complete Whole Genome Transcriptome, DNA Methylation, and Histone Mark Analysis of Rheumatoid Arthritis (RA) Fibroblast-like Synoviocytes (FLS) Reveals a Distinctive Epigenetic Landscape and Critical Pathogenic Pathways
Rizi Ai¹, Deepa Hammaker², David L. Boyle³, Andre ‎ Wildberg⁴, Keisuke Maeshima², Emmanuele Palescandolo⁵, Vinod Krishna⁵, Bryan Linggi⁶, Radu Dobrin⁵, John W. Whitaker⁷, Wei Wang⁸ and Gary Firestein⁹, ¹Chemistry and Biochemistry, UC San Diego, La Jolla, CA, ²Division of Rheumatology, Allergy and Immunology, UCSD School of Medicine, La Jolla, CA, ³Division of Rheumatology, Allergy and Immunology, University of California, San Diego, La Jolla, CA, ⁴Chemistry and Biochemistry, UNIVERSITY OF CALIFORNIA SAN DIEGO, LA JOLLA, CA, ⁵Janssen Pharmaceuticals, Spring House, PA, ⁶janssen Pharmaceuticals, Spring House, PA, ⁷Janssen Pharmaceuticals, La Jolla, CA, ⁸Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, ⁹Medicine, UCSD, La Jolla, CA
Background/Purpose: RA FLS display a unique aggressive phenotype with a distinctive DNA methylation profile that marks genes involved with cytokine signaling, cell recruitment, and matrix…
Abstract Number: 3120 • 2016 ACR/ARHP Annual Meeting
RA Net: A Systems Biology Approach to Identify Genes Regulating Pathogenic Pathways in Rheumatoid Arthritis (RA) Fibroblast-like Synoviocytes (FLS)
Wei Wang¹, RIchard Ainsworth², Richard Stein², Rizi Ai³ and Gary Firestein⁴, ¹Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, ²UC San Diego, La Jolla, CA, ³Chemistry and Biochemistry, UC San Diego, La Jolla, CA, ⁴Medicine, UCSD, La Jolla, CA
Background/Purpose: Rheumatoid arthritis (RA) remains a significant unmet need despite improved therapy. Defining the interlaced nature of gene regulation and disease pathogenesis using integrative systems…
Abstract Number: 2573 • 2015 ACR/ARHP Annual Meeting
Confirmatory Analysis of Methylome Signatures in Rheumatoid Arthritis Using an Independent Dataset
Rizi Ai¹, Deepa Hammaker², Wei Wang³ and Gary S. Firestein⁴, ¹University of California San Diego, La Jolla, CA, ²Division of Rheumatology, Allergy and Immunology, UCSD School of Medicine, La Jolla, CA, ³Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, ⁴Div of Rheumatology, UCSD School of Medicine, La Jolla, CA
Background/Purpose: Epigenetics can contribute to the pathogenesis of rheumatoid arthritis (RA). A DNA methylation signature that distinguishes RA fibroblast-like synoviocytes (FLS) from osteoarthritis (OA) FLS…
Abstract Number: 2994 • 2015 ACR/ARHP Annual Meeting
The Global Microrna Profile of Systemic Sclerosis Whole Skin/Dermal Fibroblasts and the Role of the Xq26.3 miRNA Cluster As a TGF-b Pathway Positive Feedback Mechanism
Gloria Salazar¹, John Hagan², Minghua Wu³, Xinjian Guo⁴, Xiaodong Zhou⁴, Julio Charles¹, Maureen D Mayes¹ and Shervin Assassi¹, ¹Rheumatology, University of Texas Medical School at Houston, Houston, TX, ²Neurosurgery, University of Texas at Houston, Houston, TX, ³Feinberg School of Medicine, Northwestern University, Chicago, IL, ⁴Internal Medicine, University of Texas Medical School at Houston, Houston, TX
Background/Purpose: MicroRNA (miRNA) are critical gene regulators that frequently play central roles in disease. Here, we report the miRNA expression signatures of systemic sclerosis (SSc)…
Abstract Number: 3006 • 2015 ACR/ARHP Annual Meeting
Cell-Free Circulating DNA in Systemic Sclerosis: Increased Levels and Global Cytosine Hypomethylation
Shadia Nada¹, Omar Oraibi², Farouk Abu Alhana², Nawaf Almeshal², Yongqing Wang², Nezam Altorok³ and Bashar Kahaleh⁴, ¹Internal Medicine, Divison of Rheumatology, The University of Toledo, Toledo, OH, ²The University of Toledo, Toledo, OH, ³Internal Medicine, Division of Rheumatology, The University of Toledo, Toledo, OH, ⁴Medicine/Rheumatology, The University of Toledo, Toledo, OH
Background/Purpose: Systemic sclerosis (SSc) is an autoimmune disease characterized by endothelial dysfunction, vascular injury, and activation of fibroblasts leading to organ fibrosis. The precise etiology…
Abstract Number: 3024 • 2015 ACR/ARHP Annual Meeting
FcÎ³riiia Mediated Signal Cause Epigenetic Changes in Human Naive CD4+ T-Cells
Ye Bi¹, Chen Chen², Terry Moore³ and Anil K. Chauhan⁴, ¹Internal Medicine, Saint Louis University, St. Louis, MO, ²Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ³Division of Rheumatology and Pediatric Rheumatology, Saint Louis University School of Medicine, St Louis, MO, ⁴Internal Medicine-Rheumatology, Saint Louis University, St Louis, MO
Background/Purpose: Signals that trigger epigenetic changes in CD4+ T-cells are unknown. To examine a role for FcγRIIIa mediated co-signal in causing epigenetic changes in human…
Abstract Number: 3256 • 2015 ACR/ARHP Annual Meeting
Epigenetic Chromosome Conformations Predict MTX Responsiveness in Early Rheumatoid Arthritis Patients
Claudio Carini¹, Aroul Ramadass², Philip Jordan², Ewan Hunter², Alexandre Akoulitchev², Iain. B. McInnes³, Carl. S. Goodyear³ and Scottish Early Rheumatoid Arthritis Inception Cohort Investigators, ¹35 Cambridgepark Drive, Pfizer, Cambridge, MA, ²Oxford Biodynamics, Oxford, United Kingdom, ³Institute of Infection, Immunity and Inflammation, College of Medicine, Veterinary Medicine and Life Sciences, University of Glasgow, Glasgow, United Kingdom
Background/Purpose: In early rheumatoid arthritis (RA), it is not possible to predict response to first line DMARDs (e.g. methotrexate (MTX)) and as such treatment decisions…

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