Abstracts tagged "Fibroblasts"

Abstract Number: 324 • 2014 ACR/ARHP Annual Meeting
Regulation of TNF-α-Mediated Activation of Rheumatoid Synovial Fibroblasts By Transcription Factor Snail
Chrong-Reen Wang^1,2, Shih-Yao Chen³, Ai-Li Shiau⁴, I-Ming Jou^5,6, Ming-Fei Liu^1,2 and Chao-Liang Wu³, ¹Internal Medicine, National Cheng Kung University Medical College, Tainan, Taiwan, ²Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan, ³Biochemistry and Molecular Biology, National Cheng Kung University Medical College, Tainan, Taiwan, ⁴Microbiology and Immunology, National Cheng Kung University Medical College, Tainan, Taiwan, ⁵Orthopedics, National Cheng Kung University Medical College, Tainan, Taiwan, ⁶Orthopedics, National Cheng Kung University Hospital, Tainan, Taiwan
Background/Purpose: Transcription factor Snail plays active roles in various biological functions and is involved in many disease states. We hypothesized that this molecule regulates TNF-α-mediated…
Abstract Number: 1710 • 2014 ACR/ARHP Annual Meeting
Endothelin-1 Is a Downstream Mediator of Profibrotic Effects by Transforming Growth Factor-β1 in Systemic Sclerosis Skin Fibroblasts
Tomoaki Higuchi¹, Yasushi Kawaguchi¹, Akiko Tochimoto¹, Yuko Ota², Yasuhiro Katsumata¹, Takahisa Gono¹, Masanori Hanaoka¹, Yuko Okamoto¹, Hidenaga Kawasumi¹ and Hisashi Yamanaka³, ¹Institute of Rheumatology, Tokyo Women's Medical University, Tokyo, Japan, ²10-22 Kawada-Cha Shinjuku-Ku, Tokyo Women's Medical University, Tokyo, Japan, ³Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
Background/Purpose Systemic sclerosis (SSc) is an autoimmune connective tissue disorder characterized by excess collagen deposition, vascular changes and production of autoantibodies that affects multiple organs.…
Abstract Number: 1704 • 2014 ACR/ARHP Annual Meeting
CXCL4 Promotes Fibrosis By Increasing Expression of Extracellular Matrix Modifying Factors and By Facilitating Epithelial/Endothelial Mesenchymal Transition
W. Marut¹, A.J. Affandi¹, A. Limpers¹ and T.R.D.J. Radstake², ¹Immunology, University Medical Center Utrecht, Utrecht, Netherlands, ²Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht, Netherlands
Background/Purpose Systemic sclerosis (SSc) is a degenerative disorder, characterized by vascular abnormalities and immunological disturbances followed by excessive fibrosis in multiple organ systems. In a…
Abstract Number: 1462 • 2014 ACR/ARHP Annual Meeting
Cadherin-11 mRNA Expression in the Peripheral Blood of Rheumatoid Arthritis Patients As a Marker of Active Polyarthritis
Petros P. Sfikakis¹, Panagiotis F. Christopoulos^1,2, Aristeidis G. Vaiopoulos^1,2, Kalliopi Fragkiadaki¹, Christina Katsiari³, Violetta Kapsimali⁴, George Lallas¹, Panayiotis Panayiotidis⁴, Pinelopi Korkopoulou⁵ and Michael Koutsilieris², ¹First Department of Propedeutic Internal Medicine, Laikon Hospital, Athens University Medical School, Athens, Greece, ²Department of Physiology, Athens University Medical School, Athens, Greece, ³Department of Rheumatology, School of Health Sciences, University of Thessaly, Larissa, Greece, ⁴Department of Microbiology, Athens University Medical School, Athens, Greece, ⁵Department of Pathology, Athens University Medical School, Athens, Greece
Background/Purpose: Human rheumatoid arthritis synovial fibroblasts (RASF) implanted subcutaneously in immunodeficient mice trans-migrate through the vasculature and drive the progression from oligo- to poly-articular disease.…
Abstract Number: 2919 • 2014 ACR/ARHP Annual Meeting
The Novel Rheumatoid Arthritis (RA) Risk Gene, LBH, Is Regulated By TGFß and PDGF and Modulates Cell Growth in Fibroblast-like Synoviocytes
Anna-Karin Ekwall¹, Deepa Hammaker², John W. Whitaker³, William Bugbee⁴, Wei Wang⁵ and Gary S. Firestein⁶, ¹Medicine, UC San Diego, La Jolla, CA, ²Medicine, University of California San Diego, La Jolla, CA, ³860 island ave, UCSD, San Diego, CA, ⁴Orthopaedics, Scripps Clinic, La Jolla, CA, ⁵Chemistry, UCSD, La Jolla, CA, ⁶Division of Rheumatology, Allergy and Immunology, University of California at San Diego School of Medicine, La Jolla, CA
Background/Purpose: RA fibroblast-like synoviocytes (FLS) display an aggressive phenotype, such as increased cytokine production and cell growth. Currently no therapeutics specifically target FLS. To this…
Abstract Number: 1027 • 2014 ACR/ARHP Annual Meeting
Hematopoietic Cell Kinase (HCK) As a Novel Regulator of Fibroblast-like Synoviocyte Function in RA
Ying Wang¹, Deepa Hammaker², David L. Boyle³, Toshio Yoshizawa⁴ and Gary S. Firestein³, ¹Medicine, UCSD, La Jolla, CA, ²Medicine, University of California San Diego, La Jolla, CA, ³Division of Rheumatology, Allergy and Immunology, University of California at San Diego School of Medicine, La Jolla, CA, ⁴Exploratory Research Laboratories 1, Ono Pharmaceutical Co., Ltd., Osaka, Japan
Background/Purpose: Fibroblast-like synoviocytes (FLS) are key mediators of inflammation and joint damage in rheumatoid arthritis (RA) through the production of cytokines and matrix metalloproteinases (MMPs)…
Abstract Number: 2816 • 2014 ACR/ARHP Annual Meeting
Distinctive DNA Methylome Signatures in Early Rheumatoid Arthritis (RA) Synoviocytes Compared with Longstanding (RA) and Other Inflammatory Arthritides
Rizi Ai¹, John W. Whitaker², David L. Boyle³, Paul Peter Tak⁴, Danielle M. Gerlag⁵, Wei Wang⁶ and Gary S. Firestein³, ¹Chemistry, UC San Diego, La Jolla, CA, ²860 island ave, UCSD, San Diego, CA, ³Division of Rheumatology, Allergy and Immunology, University of California at San Diego School of Medicine, La Jolla, CA, ⁴Academic Medical Center / University of Amsterdam, Department of Clinical Immunology and Rheumatology & GlaxoSmithKline, Amsterdam, Netherlands, ⁵Division of Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands, ⁶Chemistry, UCSD, La Jolla, CA
Background/Purpose: Epigenetics influences pathogenic mechanisms in autoimmunity. Recently, a stable RA DNA methylation signature in fibroblast-like synoviocytes (FLS) was defined in 2375 genes. The…
Abstract Number: 1038 • 2014 ACR/ARHP Annual Meeting
Macrophage-Fibroblast Crosstalk Pathways Amplify RA Joint Pathology
Laura T. Donlin¹, Jennifer Ding¹ and Lionel B. Ivashkiv^1,2, ¹Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, ²Weill Cornell Graduate School of Medical Sciences, New York, NY
Background/Purpose Macrophages and synovial fibroblasts represent key cellular drivers of RA. The goal of this study was to define how the complex cellular programs of…
Abstract Number: 2817 • 2014 ACR/ARHP Annual Meeting
Histone Deacetylase One Contributes to the Auto-Aggressive Phenotype of Rheumatoid Arthritis
Sarah Hawtree¹, Munitta Muthana¹, J. Mark Wilkinson², Anthony G. Wilson¹ and Mohammed Akil³, ¹Infection and Immunity, University of Sheffield, Sheffield, United Kingdom, ²Academic Unit of Bone Metabolism, University of Sheffield, Sheffield, United Kingdom, ³Rheumatology Department, Sheffield South Yorkshire, United Kingdom
Background/Purpose Rheumatoid arthritis (RA) is a chronic, autoimmune, inflammatory disease that affects synovial joints. A key characteristic of RA is hyperplasia of fibroblast-like synoviocytes (FLS)…
Abstract Number: 1022 • 2014 ACR/ARHP Annual Meeting
Fibroblast-like Synovial Cells and Monocytes Team up in the Organization and the Dynamic Modelling of the Synovial Tissue
Ruth Byrne¹, Karolina von Dalwigk², Thomas Karonitsch¹, Gunter Steiner³, Johannes Holinka⁴, Reinhard Windhager⁴, Josef Smolen⁵, Hans Peter Kiener¹ and Clemens Scheinecker⁶, ¹Division of Rheumatology, Medical University of Vienna, Vienna, Austria, ²Department of Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria, ³Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria, ⁴Department of Orthopaedics, Medical University of Vienna, Vienna, Austria, ⁵Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria, ⁶Divison of Rheumatology, Medical University of Vienna, Vienna, Austria
Background/Purpose The synovial lining tissue consists of fibroblast-like synoviocytes (FLS) and monocyte-derived macrophage-like synoviocytes (MLS) within a self-built meshwork of dense extracellular matrix (ECM) components.…
Abstract Number: 2818 • 2014 ACR/ARHP Annual Meeting
SH2 Domain-Containing Phosphatase 2 Promotes Aggressiveness of Rheumatoid Fibroblast-like Synoviocytes
Stephanie M. Stanford¹, German R. Aleman Muench¹, Cristiano Sacchetti¹, Lifan Zeng², David L. Boyle³, Gen-Sheng Feng⁴, Zhong-Yin Zhang², Maripat Corr³, Gary S. Firestein³ and Nunzio Bottini¹, ¹Cellular Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, ²Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, ³Division of Rheumatology, Allergy and Immunology, University of California at San Diego School of Medicine, La Jolla, CA, ⁴Pathology, University of California at San Diego Division of Biological Sciences, La Jolla, CA
Background/Purpose In rheumatoid arthritis (RA), fibroblast-like synoviocytes (FLS) that line joint synovial membranes aggressively invade the extracellular matrix, destroying cartilage and bone. Although this cell…
Abstract Number: 994 • 2014 ACR/ARHP Annual Meeting
IL-7 Modulates B Cell Immunoglobulin Isotype Production and Increases B Cell Activating Factor of the Tumor Necrosis Factor Family (BAFF) in Synovial Fibroblasts from Osteoarthritis (OA) and Rheumatoid Arthritis (RA) Patients
Georg Pongratz¹, Stephan Kuhn², Madlen Melzer², Torsten Lowin² and Rainer Straub³, ¹Internal Medicine I, University Hospital Regensburg, Regensburg, Germany, ²University Hospital Regensburg, Regensburg, Germany, ³Internal Medicine, University Hospital Regensburg, Regensburg, Germany
Background/Purpose Interleukin(IL)-7 is increased in synovial fluid from rheumatoid arthritis (RA) patients as compared to osteoarthritis (OA) patients and has been attributed a proinflammatory role,…
Abstract Number: 2785 • 2014 ACR/ARHP Annual Meeting
Joint Specific Positional Differences in Coding and Noncoding Transcriptome of Synovial Fibroblasts As a Determinant of the Susceptibility of Synovial Joints to Rheumatoid Arthritis
Caroline Ospelt¹, Maria Armaka², Giancarlo Russo³, Anna Bratus³, Michelle Trenkmann⁴, Emmanuel Karouzakis¹, Christoph Kolling⁵, Renate E. Gay⁴, George Kollias⁶, Steffen Gay¹ and Mojca Frank Bertoncelj¹, ¹Center of Experimental Rheumatology, University Hospital Zurich, Zurich, Switzerland, ²Institute of Immunology,, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece, ³Functional Genomics Center Zurich, ETH Zurich and University of Zurich, Zurich, Switzerland, ⁴Center of Experimental Rheumatology, Zurich University Hospital, Zurich, Switzerland, ⁵Schulthess Clinic, Zurich, Switzerland, ⁶Institute of Immunology, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
Background/Purpose The molecular mechanisms underlying the topographic differences in the susceptibility of synovial joints to develop rheumatoid arthritis (RA) are unknown. Positional embryonic expression of…
Abstract Number: 968 • 2014 ACR/ARHP Annual Meeting
Priming of WNT Signalling during Fibrosis Is Mediated By TGF-β Induced Axin-2 Downregulation
Justin Gillespie¹, Emma C. Derrett-Smith², Michael McDermott¹, Paul Emery³, Christopher P Denton⁴ and Francesco Del Galdo³, ¹Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, United Kingdom, ²Centre for Rheumatology and Connective Tissue Diseases,, UCL Medical School Royal Free Campus, London, United Kingdom, ³Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom, ⁴Centre for Rheumatology and Connective Tissue Disease, UCL Medical School Royal Free Campus, London, United Kingdom

Background/Purpose Systemic Sclerosis (SSc) is characterized by autoimmune activation, vasculopathy and tissue fibrosis. Recently, activation of the Wnt/β-catenin signaling pathway in SSc fibroblasts has been…
Abstract Number: 2709 • 2014 ACR/ARHP Annual Meeting
Could a Fibroblast-Free Environment Protect the Microcirculation in Systemic Sclerosis? Evidence from Retinal Vascular Imaging Research
Evaggelia K. Aissopou¹, Vasiliki-Kalliopi Bournia¹, Athanase D. Protogerou¹, Stylianos Panopoulos¹, Theodore G. Papaioannou², Panayiotis G. Vlachoyiannopoulos¹, Marco Matucci-Cerinic³ and Petros P. Sfikakis¹, ¹First Department of Propedeutic Internal Medicine, Laikon Hospital, Athens University Medical School, Athens, Greece, ²Biomedical Engineering Unit, First University Dept. of Cardiology, Hippokration Hospital , Athens University Medical School, Athens, Greece, ³Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
Background/Purpose: A primary endothelial cell dysfunction is thought to be involved in systemic sclerosis (SSc)-associated fibroproliferative vasculopathy of the microcirculation and small arterioles, even in…

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