Abstracts tagged "Gene Expression"

Abstract Number: 1613 • 2015 ACR/ARHP Annual Meeting
Expression of the Genes Facilitating Methotrexate Action within Rheumatoid Subcutaneous Nodules
Emma Houlder¹, Melanie Millier², John Highton³, Lisa K. Stamp⁴ and Paul Hessian², ¹Medicine, University of Otago, Dunedin, New Zealand, ²Department of Medicine, University of Otago, Dunedin, New Zealand, ³Dept of Medicine, University of Otago, Dunedin, New Zealand, ⁴Medicine, University of Otago, Christchurch, Christchurch, New Zealand
Background/Purpose: Methotrexate (MTX) is the most frequently used DMARD in the treatment of rheumatoid arthritis (RA). There are known links between the use of MTX…
Abstract Number: 2816 • 2015 ACR/ARHP Annual Meeting
Is the Gender Difference in As Linked to IL-23?
Johannes Nossent¹ and Gunnstein Bakland^2,3, ¹Medicine, University of Western Australia, WA, Australia, ²Dept. of Rheumatology, University Hospital Northern Norway, Tromsø, Norway, ³University of Tromsø, The Arctic University of Norway, Tromsø, Norway
Background/Purpose: Ankylosing Spondylitis (AS) has traditionally been portrayed as a disease where male patients outnumber female patients by a factor 3 to 4. It has…
Abstract Number: 1908 • 2015 ACR/ARHP Annual Meeting
Macitentan Responsiveness Supports the Validity of a Murine Model of Pulmonary Hypertension in Scleroderma Associated with Altered Tgfbeta/BMPR2 Signalling
Emma C. Derrett-Smith¹, Vincent Sobanski², Adrian Gilbane², Sarah Trinder³, Yasmina Bauer⁴, Berengère Renault⁴, Marc Iglarz⁴, David Abraham⁵, Alan M. Holmes⁶ and Christopher P. Denton⁷, ¹Centre for Rheumatology and Connective Tissue Diseases,, UCL Division of Medicine, London, United Kingdom, ²UCL Division of Medicine, London, United Kingdom, ³Centre for Rheumatology and Connective Tissue Disease, UCL Division of Medicine, London, United Kingdom, ⁴Actelion Pharmaceuticals Ltd., Allschwil, Switzerland, ⁵Centre for Rheumatology and Connective Tissue Disease, University College London, London, United Kingdom, ⁶Centre for Rheumatology and Connective Tissue Diseases, UCL Division of Medicine, London, United Kingdom, ⁷Rheumatology and Connective Tissue Diseases, University College London, London, United Kingdom
Background/Purpose: Pulmonary arterial hypertension (PAH) is an important complication of systemic sclerosis (SSc) that occurs in around 10% of cases. We have previously shown that…
Abstract Number: 2827 • 2015 ACR/ARHP Annual Meeting
Analysis of HLA-B27 Transgenic Rats Reveals Specific Gut Transcriptome and Microbiome Signatures Associated with Inflammation
Tejpal Gill¹, Mark Asquith², Stephen Brooks¹, James T. Rosenbaum³ and Robert A. Colbert⁴, ¹NIAMS/NIH, Bethesda, MD, ²OHSU, Portland, OR, ³Devers Eye Institute, Legacy Hospital system, Portland, OR, ⁴National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
Background/Purpose: HLA-B27 and human beta 2-microglobulin expression in rats (transgenic; TG) induces a spontaneous inflammatory disease resembling human spondyloarthritis (SpA) with associated gastrointestinal inflammation. While…
Abstract Number: 102 • 2015 ACR/ARHP Annual Meeting
Xanthine Oxidase Gene Variants and Their Association with Blood Pressure and Incident Hypertension: A Population Based Study
Lieke E.J.M. Scheepers¹, Jan A. Staessen^2,3, Lutgarde Thijs², Erika Salvi⁴, Annelies Boonen⁵ and Ilja C.W. Arts⁶, ¹Department of Internal Medicine, Division of Rheumatology, CAPHRI School for Public Health and Primary Care, Maastricht University Medical Centre, Maastricht, Netherlands, ²Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology KU Leuven, Department of Cardiovascular Diseases, University of Leuven, Leuven, Belgium, ³R & D Group VitaK, Maastricht University, Maastricht, Netherlands, ⁴Department of Health Sciences, University of Milan, Milan, Italy, ⁵Department of Internal Medicine, Division of Rheumatology, Maastricht University Medical Center, Maastricht, Netherlands, ⁶Department of Epidemiology, CAPHRI School for Public Health and Primary Care, CARIM School for Cardiovascular Diseases, and MaCSBio Maastricht Centre for Systems Biology, Maastricht University, Maastricht, Netherlands
Background/Purpose: Uric acid (UA) has been associated with blood pressure (BP) and hypertension. During the final stage of purine metabolism, xanthine oxidoreductase (XOR) breaks down…
Abstract Number: 1915 • 2015 ACR/ARHP Annual Meeting
Pathogenetic Overlap Between Localised and Systemic Scleroderma: A Study of Nodular and Keloidal Morphea Occurring in Systemic Sclerosis
Emma C. Derrett-Smith¹, Nataliya Gak², Svetlana I. Nihtyanova³, Voon H. Ong³, Victoria Swale², Cate Orteu² and Christopher P. Denton⁴, ¹Centre for Rheumatology and Connective Tissue Diseases,, UCL Division of Medicine, London, United Kingdom, ²Royal Free London NHS Foundation Trust, London, United Kingdom, ³Rheumatology, UCL Division of Medicine, London, United Kingdom, ⁴Rheumatology and Connective Tissue Diseases, University College London, London, United Kingdom
Background/Purpose: Localised scleroderma can occur in overlap with systemic sclerosis (SSc); nodular and keloidal morphea are rare subtypes but can be disfiguring and challenging to…
Abstract Number: 3000 • 2015 ACR/ARHP Annual Meeting
Intrinsic Gene Expression Subset Predicts Improvement in Systemic Sclerosis Patients during Dasatinib (SprycelTM) Therapy
Viktor Martyanov¹, Jonathan Goldin², Kim Hyun³, Oumar Sy⁴, Wendy Hayes⁴, Shuyan Du⁴, Michael Whitfield¹ and John Varga⁵, ¹Department of Genetics, Geisel School of Medicine at Dartmouth, Hanover, NH, ²David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, ³Radiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, ⁴Bristol-Myers Squibb, Princeton, NJ, ⁵Division of Rheumatology, Northwestern University, Feinberg School of Medicine, Chicago, IL
Background/Purpose: Intrinsic gene expression subsets are molecular pathway-driven subtypes of systemic sclerosis (SSc) that have been reproduced across multiple cohorts of SSc patients. The goal…
Abstract Number: 522 • 2015 ACR/ARHP Annual Meeting
The Expression of mRNA for Peptidylarginine Deiminase Type 2 and Type 4 in CD34+ Cells of the Bone Marrow in Rheumatoid Arthritis
Tatsuo Nagai¹, Tetsuya Tomita², Hideki Yoshikawa² and Shunsei Hirohata¹, ¹Rheumatology and Infectious Diseases, Kitasato University School of Medicine, Kanagawa, Japan, ²Department of Orthopedics, Osaka University Graduate School of Medicine, Suita Osaka, Japan
Background/Purpose: We previously showed that bone marrow (BM) CD34+ cells from rheumatoid arthritis (RA) patients have abnormal capacities to respond to tumor necrosis factor alpha…
Abstract Number: 1936 • 2015 ACR/ARHP Annual Meeting
STAT3-Regulated Gene Expression in Circulating CD4+ T Cells Discriminates RA Patients Independently of Clinical Parameters in Early Arthritis: A Validation Study
Arthur G Pratt¹, Amy E. Anderson¹, Dennis W Lendrem², Andrew Skelton², Jonathan Massey³, Nisha Nair³, Julie Diboll², Ben Hargreaves², Philip M Brown², Anne Barton^4,5 and John D Isaacs², ¹Institute of Cellular Medicine (Musculoskeletal Research Group), National Institute for Health Research Newcastle Biomedical Research Centre based at Newcastle Hospitals Foundation Trust and Newcastle University, Newcastle upon Tyne, United Kingdom, ²Institute of Cellular Medicine (Musculoskeletal Research Group), NIHR Newcastle Biomedical Research Centre, Newcastle Hospitals Foundation Trust and Newcastle University, Newcastle upon Tyne, United Kingdom, ³NIHR Manchester Musculoskeletal Biomedical Research Unit, Manchester Academy of Health Sciences, Manchester, United Kingdom, ⁴NIHR Manchester Musculoskeletal Biomedical Research Unit, Manchester Academic Health Science Centre, Manchester, United Kingdom, ⁵Arthritis Research UK Centre for Genetics and Genomics, University of Manchester, Manchester, United Kingdom
Background/Purpose: A previously described transcriptional signature present in circulating CD4+ T cells of early rheumatoid arthritis (RA) patients implicated STAT3 signalling as an early pathophysiological…
Abstract Number: 3005 • 2015 ACR/ARHP Annual Meeting
Pulmonary Arterial Hypertension-Associated Single Nucleotide Polymorphisms of Hypoxia-Inducible Factor-3a Gene Cause Constitutive Activation of the Endothelin-1 Gene Promoter
Katsutoshi Mizumoto¹, Kyohei Takatori¹, Sayaka Takatori¹, Ryota Yoshimoto¹, Kohei Eguchi¹, Daisuke Fujishiro¹, Satoru Kodama¹, Atsushi Kobayashi¹, Kensaku Okamoto¹, Yasushi Kawaguchi², Masakazu Haneda¹ and Yuichi Makino¹, ¹Division of Metabolism and Biosystemic Science, Department of Medicine, Asahikawa Medical University, Asahikawa, Japan, ²Institute of Rheumatology, Tokyo Women's Medical University, Tokyo, Japan
Background/Purpose: Pulmonary arterial hypertension (PAH) is a progressive and fatal complication in the patients with connective tissue diseases (CTD). Elevation of endothelin-1 (ET-1) levels in…
Abstract Number: 794 • 2015 ACR/ARHP Annual Meeting
CD163+ Macrophages Display Mixed Polarizations in Discoid Lupus Skin
Benjamin Chong¹, Lin-chiang Tseng¹, Gregory Hosler², Noelle Teske¹, Song Zhang³, David R. Karp⁴, Nancy J. Olsen⁵ and Chandra Mohan⁶, ¹Dermatology, University of Texas Southwestern Medical Center, Dallas, TX, ²Propath, Dallas, TX, ³Clinical Sciences, University of Texas Southwestern Medical Center, Dallas, TX, ⁴UT Southwestern Medical Center, Dallas, TX, ⁵Divsion of Rheumatology, Department of Medicine, Penn State MS Hershey Medical Center, Hershey, PA, ⁶Biomedical Engineering, University of Houston, Houston, TX
Background/Purpose: Discoid lupus erythematosus (DLE) is the most common form of chronic cutaneous lupus. Lesional skin of DLE patients contains macrophages that may transition from…
Abstract Number: 2012 • 2015 ACR/ARHP Annual Meeting
TNF Confers Pathogenic Memory in Synovial Fibroblasts Via Chromatin Remodeling, NF-Kb-Dependent Transcription and MAPK-Mediated mRNA Stabilization
Konstantinos Loupasakis¹, Christopher Sohn², Lionel B. Ivashkiv³ and George D. Kalliolias², ¹Rheumatology, Hospital for Special Surgery Weill Cornell Medical College, New York, NY, ²Hospital for Special Surgery, New York, NY, ³Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY
Background/Purpose: We investigated mechanisms driving pathogenic behavior of synovial fibroblasts (FLS) in rheumatoid arthritis (RA). Methods: FLS from RA patients (1987 classification criteria) were extracted.…
Abstract Number: 3107 • 2015 ACR/ARHP Annual Meeting
Investigating the Ameliorating Effect of Pregnancy on Rheumatoid Arthritis Using Whole Transcriptome Analysis
Anuradha Mittal¹, Lior Pachter², J. Lee Nelson³, Hanne Kjaergaard⁴, Mette Smed⁴, Vibeke Zoffmann⁴, Jørn Olsen⁵, Merete Lund Hetland⁶, Ingileif Hallgrimsdottir² and Damini Jawaheer¹, ¹Children's Hospital Oakland Research Institute, Oakland, CA, ²University of California, Berkeley, Berkeley, CA, ³Immunogenetics, Fred Hutchinson Cancer Rsch, Seattle, WA, ⁴Juliane Marie Center, Copenhagen, Denmark, ⁵Aarhus University, Aarhus, Denmark, ⁶On behalf of all Depts of Rheumatology in Denmark, DANBIO, Glostrup Hospital, Glostrup, Denmark
Background/Purpose: Pregnancy is known to induce a natural improvement of Rheumatoid Arthritis (RA) symptoms in 50-75% of patients as gestation progresses. However, the underlying mechanisms…
Abstract Number: 944 • 2015 ACR/ARHP Annual Meeting
Activity of Type I and Type II Interferons in Dermatomyositis Skin Is Correlated with Characteristic Pathologic Features
Hayley W. Leatham¹, Kerri Rieger², Lorinda Chung³, Shufeng Li¹, Brandon W. Higgs⁴, Yihong Yao⁴, Kavita Sarin¹ and David Fiorentino¹, ¹Dermatology, Stanford University, Stanford, CA, ²Dermatopathology, Stanford University, Stanford, CA, ³Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA, ⁴Translational Sciences, MedImmune, LLC, Gaithersburg, MD
Background/Purpose :Interferon (IFN) signaling is upregulated in dermatomyositis (DM) skin, but the relationship to classic histopathologic features is unknown. Methods :Thirty-nine skin biopsies from patients…
Abstract Number: 2069 • 2015 ACR/ARHP Annual Meeting
High Interferon Gene Signature Is Associated with Increased Disease Activity, Reduced Complement C3 and C4, and Increased Oral Corticosteroid Use in Systemic Lupus Erythematosus (SLE)
K Ranade, L Wang, P Brohawn, W Greth, J Drappa and G Illei, MedImmune, Gaithersburg, MD
Background/Purpose: Increased expression of genes inducible by type 1 interferons has been observed in a subset of patients with systemic lupus erythematosus (SLE). Oral corticosteroids…

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