Abstracts tagged "Epigenetics"

Abstract Number: 2743 • 2019 ACR/ARP Annual Meeting
Characterizing the Epigenomic Landscape of Psoriasis Patients Destined to Develop Psoriatic Arthritis
Remy Pollock¹, Rohan Machhar ¹, Vinod Chandran ² and Dafna Gladman ³, ¹Krembil Research Institute, University Health Network, Toronto, Canada, ²University Health Network, University of Toronto, Toronto, Canada, ³Toronto Western Hospital, Toronto, Canada, Toronto, ON, Canada
Background/Purpose: Approximately 30% of psoriasis patients develop psoriatic arthritis (PsA), an inflammatory musculoskeletal disease, usually after psoriasis onset. A large proportion of individuals with PsA…
Abstract Number: 816 • 2019 ACR/ARP Annual Meeting
The Long Non-coding RNA HOTAIR Regulates BMP2 and Wnt Pathways in Synovial Fibroblasts
Muriel Elhai¹, Raphael Micheroli ¹, Mojca Frank-Bertoncelj ², Kerstin Klein ¹, Oliver Distler ³ and Caroline Ospelt ², ¹Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, Switzerland., Zürich, Switzerland, ²University Hospital Zürich, Zürich, Switzerland, ³Dept. of Rheumatology, University Hospital Zürich, Zürich, Switzerland, Zürich, Switzerland
Background/Purpose: Mechanisms involved in joint patterning of rheumatic diseases remain unknown. The long non-coding RNA HOTAIR is exclusively expressed in synovial fibroblasts (SF) from lower…
Abstract Number: 1013 • 2019 ACR/ARP Annual Meeting
Effects of Anti-TNF on MiR Expression in Monocytes and CD4+ T-Lymphocytes in Spondyloarthritis
Olivier Fogel¹, Maud Fagny ², Elodie Roche ³, Nelly Sigrist ³, Jean-François Deleuze ⁴, Maxime Dougados ⁵, Corinne Miceli-Richard ¹ and Jorg Tost ³, ¹Paris Descartes University, Department of Rheumatology - Hôpital Cochin, Assistance Publique - Hôpitaux de Paris, Paris, France, ²CEA-CNRGH-Institut François Jacob- Laboratoire Epigenetique et Envrironnement, Evry, Ile-de-France, France, ³CEA-CNRGH-Institut François Jacob- Laboratoire Epigenetique et Envrironnement, Evry, France, ⁴CEA-CNRGH-Institut François Jacob, Evry, France, ⁵Cochin Hospital, Paris, France
Background/Purpose: TNFα inhibitors are an effective treatment for many inflammatory diseases. However, their mechanism of action is more complicated than just blocking the targeted cytokine.…
Abstract Number: 1058 • 2019 ACR/ARP Annual Meeting
Inhibition of Histone Readers Bromodomain and Extraterminal Domain Proteins Alleviates Scleroderma Fibrosis
Sirapa Vichaikul ¹, Phillip Campbell ², M. Asif Amin ³, Jeffrey H. Ruth ³, Dallas Rohraff ¹, David Fox ⁴, Dinesh Khanna ⁵, Amr Sawalha ⁶ and Pei-Suen Tsou³, ¹University of Michigan, Ann Arbor, ²Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, ³University of Michigan, Ann Arbor, MI, ⁴Division of Rheumatology, Department of Internal Medicine, Autoimmunity Center of Excellence,University of Michigan, Ann Arbor, MI, ⁵Scleroderma Program, Division of Rheumatology, Department of Internal Medicine, Autoimmunity Center of Excellence, University of Michigan, Ann Arbor, ⁶University of Pittsburgh & University of Michigan, Pittsburgh, PA
Background/Purpose: Epigenetic regulation, including histone acetylation, plays an important role in scleroderma (SSc) fibrosis. The binding of the bromodomain and extra-terminal domain proteins (BRDs) to…
Abstract Number: 88 • 2018 ACR/ARHP Annual Meeting
Lymphocyte DNA Methylation As a Mediator of Genetic Risk in Rheumatoid Arthritis
Alex Clark^1,2, Nisha Nair³, Andrew Skelton^1,2, Amy Anderson^1,2, Nishanthi Thalayasingam^1,2, Najib Naamane^1,2, Julie Diboll^1,2, Jonathan Massey⁴, Stephen Eyre^3,4, Anne Barton^3,4, John Isaacs^1,2, Louise Reynard⁵ and Arthur Pratt^1,2, ¹Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom, ²NIHR, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom, ³Arthritis Research UK Centre for Genetics and Genomics and Centre for Epidemiology, University of Manchester, Manchester, United Kingdom, ⁴NIHR Manchester Musculoskeletal Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester, United Kingdom, ⁵Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom
Background/Purpose: Genome-wide association studies (GWAS) have to date identified over 100 genomic loci at which single nucleotide polymorphisms (SNPs) confer an increased risk of developing…
Abstract Number: 113 • 2018 ACR/ARHP Annual Meeting
Epigenetic Changes in Dermal Fibroblasts By Inhibition of DOT1L Affect Cell Proliferation and Cell Cycle, but Have No Direct Effects on Collagen Deposition in in Vitro and In Vivo models of Fibrosis
Nathalie Berghen^1,2, Jonathan Cremer³, Ellen de Langhe^1,2 and Rik Lories^1,2, ¹Skeletal Biology and Engineering Research Center, KU Leuven, Leuven, Belgium, ²Rheumatology, UZ Leuven, Leuven, Belgium, ³Translational Research in GastroIntestinal Disorders, KU Leuven, Leuven, Belgium
Background/Purpose: Fibrosis is a key feature of systemic sclerosis, a devastating disease that is not well understood. The role of epigenetic factors in the pathophysiology…
Abstract Number: 116 • 2018 ACR/ARHP Annual Meeting
Identifying Matricellular Protein CYR61 As a Potential Anti-Fibrotic and Pro-Angiogenic Mediator in Scleroderma
Pei-Suen Tsou¹, Dinesh Khanna² and Amr H Sawalha¹, ¹Division of Rheumatology, University of Michigan, Ann Arbor, MI, ²Division of Rheumatology, University of Michigan Scleroderma Program, Ann Arbor, MI
Background/Purpose: Vascular abnormalities represent a fundamental event in the pathogenesis of scleroderma (SSc) in that endothelial cell (EC) damage triggers a self-fueling process ending in…
Abstract Number: 921 • 2018 ACR/ARHP Annual Meeting
Multi-Omics Analysis Identifies a Gene Signature Associated with the Clinical Response to Anti-TNF Therapy in Rheumatoid Arthritis
Adrià Aterido¹, Jesús Tornero², Francisco J Blanco³, Benjamin Fernandez Gutierrez⁴, Antonio Gonzalez⁵, Juan D. Cañete⁶, Joan Maymó⁷, Mercedes Alperi-López⁸, Alejandro Olivé-Marqués⁹, Hector Corominas¹⁰, Víctor Martínez-Taboada¹¹, Isidoro Gonzalez-Alvaro¹², Antonio Fernandez-Nebro¹³, Alba Erra¹⁴, Simón Sánchez-Fernández¹⁵, María López-Lasanta¹, Mireia López-Corbeto¹, Raül Tortosa¹, Laia Codó¹⁶, Sara Marsal¹ and Antonio Julià¹, ¹Rheumatology Research Group, Vall d'Hebron Hospital Research Institute, Barcelona, Spain, ²Rheumatology Department, Hospital Universitario Guadalajara, Guadalajara, Spain, ³Rheumatology Department, INIBIC-Hospital Universitario A Coruña, A Coruña, Spain, ⁴Rheumatology Department, Hospital Clínico San Carlos, Madrid, Spain, ⁵Laboratorio Investigación 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria-Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain, ⁶Rheumatology Service, Hospital Clínic of Barcelona, Barcelona, Spain, ⁷Rheumatology Department, Hospital del Mar, Barcelona, Spain, ⁸Department of Rheumatology, Hospital Universitario Central de Asturias, Asturias, Spain, ⁹Hospital Universitari Germans Trias i Pujol, Badalona, Spain, ¹⁰Rheumatology, Hospital Universitari de la Santa Creu i Sant Pau, Barcelona, Spain, ¹¹Rheumatology Department, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ¹²Rheumatology Department, Hospital Universitario de La Princesa, IIS-IP, Madrid, Spain, ¹³UGC de Reumatología, Instituto de Investigación Biomédica de Málaga (IBIMA) Hospital Regional Universitario de Málaga Departamento de Medicina y Dermatología, Universidad de Málaga, MÁLAGA, Spain, ¹⁴Rheumatology Service, Hospital San Rafael, Barcelona, Spain, ¹⁵Rheumatology Department, Hospital General La Mancha Centro, Ciudad Real, Spain, ¹⁶Life Sciences Department, Barcelona Supercomputing Centre, Barcelona, Spain
Background/Purpose: Rheumatoid arthritis (RA) is the most common inflammatory arthritis affecting up to 1% of the population. Tumor Necrosis Factor (TNF) inhibitors have significantly improved…
Abstract Number: 1902 • 2018 ACR/ARHP Annual Meeting
Pathogenic and Therapeutic Modulation of Activating Epigenetic Memory at a Novel Enhancer for TGFβ2 in Systemic Sclerosis
Joseph Shin¹, Zsuzsanna McMahan², Julie J. Paik², Ami A. Shah³, Fredrick M. Wigley³ and Harry C. Dietz^1,4, ¹Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, ²Rheumatology, Johns Hopkins University School of Medicine, Baltimore, MD, ³Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, MD, ⁴Howard Hughes Medical Institue, Bethesda, MD
Background/Purpose: Systemic Sclerosis (SSc) is an etiologically mysterious disease, in which adults acquire an inflammatory prodrome with progressive fibrosis of the skin and viscera. In…
Abstract Number: 1959 • 2018 ACR/ARHP Annual Meeting
Stability of DNA Methylation Signature in Primary RA Synovial Fibroblasts Compared with Cultured Fibroblast-like Synoviocytes
Rizi Ai¹, Deepa Hammaker², Wei Wang³ and Gary S. Firestein⁴, ¹University of California San Diego, La Jolla, CA, ²Medicine, UC San Diego, La Jolla, CA, ³Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, ⁴Medicine, University of California San Diego, La Jolla, CA
Background/Purpose: Rheumatoid arthritis (RA) is an aggressive immune-mediated joint disease with synovial inflammation and joint destruction. Fibroblast-like synoviocytes (FLS) play a key role in mediating…
Abstract Number: 1964 • 2018 ACR/ARHP Annual Meeting
Epigenetic Changes of Energy Metabolism-Related Genes in Rheumatoid Arthritis Fibroblast-like Synoviocytes
Brian Pedersen¹, Roxana Coras^1,2, Wei Wang³, Gary S. Firestein¹ and Monica Guma^1,2, ¹Medicine, University of California San Diego, La Jolla, CA, ²Medicine, Autonomous University of Barcelona, Bellatera, Spain, ³Chemistry and Biochemistry, University of California San Diego, 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: 2011 • 2018 ACR/ARHP Annual Meeting
Juvenile Arthritis-Associated Single Nucleotide Polymorphisms Identified on Whole Genome Sequencing Show Enrichment within H3K9me3-Marked Regions
Shannon O'Leary¹, Evan Tarbell², Kaiyu Jiang³, Tao Liu^1,4 and James Jarvis^5,6, ¹Genetics, Genomics, & Bioinformatics Program, University at Buffalo Jacobs School of Medicine & Biomedical Sciences, Buffalo, NY, ²Biochemistry, University at Buffalo, Buffalo, NY, ³Pediatrics, University at Buffalo, Buffalo, NY, ⁴Biochemistry, University at Buffalo Jacobs School of Medicine, Buffalo, NY, ⁵University at Buffalo Jacobs School of Medicine & Biomedical Sciences, Genetics, Genomics, & Bioinformatics Program, Buffalo, NY, ⁶Pediatrics, University at Buffalo Jacobs School of Medicine & Biomedical Sciences, Buffalo, NY
Background/Purpose: We have found extensive alterations in chromatin accessibility when the CD4+ T cells of children with active polyarticular juvenile idiopathic arthritis (JIA) are compared…
Abstract Number: 2044 • 2018 ACR/ARHP Annual Meeting
Impaired microRNA Processing in Neutrophils from Rheumatoid Arthritis Patients Confers Their Pathogenic Profile. Modulation By Biological Therapies
Ivan Arias de la Rosa¹, Patricia Ruiz-Limon¹, Carlos Perez-Sanchez², Maria Carmen Abalos-Aguilera¹, Yolanda Jiménez-Gómez², Irene Cecchi³, Rafaela Ortega-Castro², Miguel Angel Caracuel-Ruiz⁴, Jerusalem Calvo-Gutierrez², Alejandro Escudero-Contreras¹, Eduardo Collantes-Estévez², Chary Lopez-Pedrera⁴ and Nuria Barbarroja², ¹Rheumatology Service, IMIBIC/Reina Sofia Hospital/University of Cordoba, Cordoba, Spain, ²Rheumatology service, IMIBIC/Reina Sofia Hospital/University of Cordoba, Cordoba, Spain, ³Center of Research of Immunopathology and Rare Diseases- Coordinating Center of Piemonte and Valle d’Aosta Network for Rare Diseases, Department of Clinical and Biological Sciences, University of Turin, Italy, Turin, Italy, ⁴IMIBIC/Reina Sofia Hospital/University of Cordoba, Cordoba, Spain
Background/Purpose: Neutrophils are the most abundant cells in synovial fluid, having all the features of activated cells in rheumatoid arthritis (RA), including prolonged cell survival,…
Abstract Number: 2053 • 2018 ACR/ARHP Annual Meeting
Global Mirna Expression and Transcriptomic Profiling of Monocytes from RA Patients
Marzena Ciechomska¹, Krzysztof Bonek², Piotr Gluszko², Marzena Olesinska², Bartosz Wojtas³, Vladimir Benes⁴ and Wlodzimierz Maslinski¹, ¹Department of Pathophysiology and Immunology, National Institute of Geriatrics Rheumatology and Rehabilitation, Warsaw, Poland, Warsaw, Poland, ²Department of Rheumatology, National Institute of Geriatrics Rheumatology and Rehabilitation, Warsaw, Poland, Warsaw, Poland, ³Nencki Institute of Experimental Biology, Warsaw, Poland, Warsaw, Poland, ⁴The European Molecular Biology Laboratory, Heidelberg, Germany, Heidelberg, Germany
Background/Purpose: Infiltration of the synovium by mononuclear cells, including monocytes, is one of the main features of RA. Monocytes are the first immune cells which…
Abstract Number: 2074 • 2018 ACR/ARHP Annual Meeting
Micrornas Deregulation in Monocytes and T CD4 Lymphocytes from Patients with Axial Spondyloarthritis
Olivier Fogel¹, Andreas Bugge Tinggaard², Maud Fagny¹, Nelly Sigrist³, Elodie Roché³, Laurence Leclère³, Jean-François Deleuze⁴, Maxime Dougados⁵, Corinne Miceli-Richard^6,7 and Jorg Tost¹, ¹Centre National de Recherche en Génomique Humaine, Institut François Jacob, CEA, Laboratory for Epigenetics and Environment, Evry, France, ²Aarhus University, Department of Biomedicine, Aarhus, Denmark, ³Laboratory for Epigenetics and Environment, Evry, France, ⁴Centre National de Recherche en Génomique Humaine, Evry, France, ⁵Paris Descartes University, Hôpital Cochin, Paris, France, ⁶Department of Immunology, Pasteur Institute, Immunoregulation Unit, Paris, France, ⁷Department of Rheumatology, Paris Descartes University, Hôpital Cochin, Paris, France
Background/Purpose: MicroRNAs have been shown to play a crucial role during innate or adaptive immune response. Deregulation of miRNAs has been described in several autoimmune…

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