Abstracts tagged "Epigenetics"

Abstract Number: 993 • 2012 ACR/ARHP Annual Meeting
A Genome-Wide DNA Methylation Analysis Reveals Different Methylation Patterns in the OA Disease
Ignacio Rego-Pérez¹, Juan Fernandez-Tajes², Mercedes Fernandez-Moreno², Maria Tamayo Novas³, Alejandro Mosquera Rey³, Natividad Oreiro², Carlos Fernandez-Lopez², Jose Luis Fernandez Garcia³ and Francisco J. Blanco², ¹Servicio de Reumatología. Instituto de Investigación Biomédica de A Coruña (INIBIC). Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. Universidade da Coruña (UDC), A Coruña, Spain, ²INIBIC-Hospital Universitario A Coruña. Rheumatology Division. Genomic Group, A Coruña, Spain, ³INIBIC-Hospital Universitario A Coruña. Genetic Deparment., A Coruña, Spain
Background/Purpose: DNA methylation is a basic mechanism involved in epigenetic regulation that affects gene transcription by the addition of a methyl group to the cytosine…
Abstract Number: 873 • 2012 ACR/ARHP Annual Meeting
Imbalance Between Histone Acetyl Transferase and Histone Deacteylase Activities and Modulation of HDAC Activity and Tnfa Production by HDAC Inhibitors in Patients with Ankylosing Spondylitis or Rheumatoid Arthritis
Eric Toussirot¹, Wasim Abbas², Kashif Aziz Khan³, Marion Tissot⁴, Alicia Jeudy², Lucile Baud², Ewa Bertolini⁵, Daniel Wendling⁶, Georges Herbein⁷ and CIC Biotherapy⁸, ¹Université de Franche Comté , CHRU, CIC Biotherapy 506 and Rheumatology and EA 4266 Pathogens and Inflammation, Besançon, France, ²University of Franche Comté, EA 4266 Pathogens and Inflammation, Besançon, France, ³University of Franche Comté, EA Pathogens and Inflammation, Besançon, France, ⁴EA Pathogens and Inflammation, EA 4266 Pathogens and Inflammation, Besançon, France, ⁵University Hospital, Rheumatology, Besançon, France, ⁶Service de Rhumatologie, Minjoz University Hospital, Besancon, France, ⁷University Hospital, Virology and EA 4266 Pathogens and Inflamamtion, Besançon, France, ⁸University Hospital, Besançon, France
Background/Purpose: TNFa is a major cytokine involved in conditions such as ankylosing spondylitis (AS) and rheumatoid arthritis (RA). Epigenetic regulation corresponds to different processes including…
Abstract Number: 892 • 2012 ACR/ARHP Annual Meeting
The Epigenetically Repressed Long Noncoding RNA Hotair Influences the Expression of Matrix Metalloproteases in Synovial Fibroblasts
Michelle Trenkmann¹, Matthias Brock², Renate E. Gay³, Beat A. Michel⁴, Lars C. Huber² and Steffen Gay³, ¹Center of Experimental Rheumatology, University Hospital Zurich and Zurich Center of Integrative Human Physiology (ZIHP), Zurich, Switzerland, ²Department of Internal Medicine, University Hospital Zurich, Zurich, Switzerland, ³Center of Experimental Rheumatology, University Hospital Zurich, Zurich, Switzerland, ⁴Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland
Background/Purpose: Long noncoding RNAs (lncRNA, >200nt) have recently emerged as regulators of gene expression functioning as signals, decoys, guides or scaffolds for transcription factors and/or…
Abstract Number: 438 • 2012 ACR/ARHP Annual Meeting
Methyl Supplementation of Rheumatoid Arthritis Synovial Fibroblasts Regulates the Expression of Transcription Factors and Matrix Metalloproteinases
Edvardas Bagdonas¹, Emmanuel Karouzakis², Astrid Jungel², Caroline Ospelt¹, Renate E. Gay¹, Steffen Gay¹, Beat A. Michel¹ and Michel Neidhart¹, ¹Center of Experimental Rheumatology, University Hospital Zurich, Zurich, Switzerland, ²Center of Experimental Rheumatology, University Hospital Zurich and Zurich Center of Integrative Human Physiology (ZIHP), Zurich, Switzerland
Background/Purpose: Previously we reported that methyl supplementation can reverse the global hypomethylation of rheumatoid arthritis synovial fibroblasts (RASF) and attenuate their aggressive behaviour. Now we…

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