Abstracts tagged "synovial cells"

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: 2557 • 2016 ACR/ARHP Annual Meeting
Tumor Necrosis Factor (TNF) Sensitizes Rheumatoid Synovial Fibroblasts to TRPA1-Mediated Calcium Flux, Anti-Proliferation and Cell Death
Torsten Lowin¹, Rainer Straub² and Georg Pongratz³, ¹Rheumatology, University Hospital Duesseldorf, Duesseldorf, Germany, ²Laboratory of Experimental Rheumatology and Neuroendocrine Immunology, Department of Internal Medicine, University Hospital Regensburg, Regensburg, Germany, ³Rheumatology - Hiller Research Center Rheumatology, University Hospital Duesseldorf, Duesseldorf, Germany
Background/Purpose: In rheumatoid arthritis (RA), synovial fibroblasts (SF) are one main contributor of joint destruction since they resist apoptosis and secrete pro-inflammatory cytokines and matrix…
Abstract Number: 2558 • 2016 ACR/ARHP Annual Meeting
Dissociation of the Inhibitory Apoptosis Stimulating Protein of p53 (iASPP) Binding with Transcription Factor p73 Induces Synovial Fibroblast Apoptosis in the Rheumatoid Joint
Chrong-Reen Wang¹, Shih-Yao Chen¹, Ai-Li Shiau², Ming-Fei Liu¹ and Chao-Liang Wu³, ¹Internal Medicine, National Cheng Kung University Medical College and Hospital, Tainan, Taiwan, ²Microbiology and Immunology, National Cheng Kung University Medical College, Tainan, Taiwan, ³Biochemistry and Molecular Biology, National Cheng Kung University Medical College, Tainan, Taiwan
Background/Purpose: Apoptosis-resistant synovial fibroblasts (SFs) constitute the major cell component of pannus tissues in rheumatoid arthritis (RA). In tumor cells, the binding of inhibitory…
Abstract Number: 3071 • 2016 ACR/ARHP Annual Meeting
Recombinant Human Proteoglycan-4 (rhPRG4) Inhibits Monosodium Urate (MSU) Crystal Phagocytosis By Human Macrophages and Resultant Inflammatory Response
Marwa Qadri¹, Tannin Schmidt², Khaled Elsaid³ and Gregory Jay⁴, ¹Pharmaceutical Sciences, Massachusetts College of Pharmacy and Health Sciences University, Boston, MA, ²Kinesiology and Schulich School of Engineering, University of Calgary, Calgary, AB, Canada, ³Biomedical and Pharmaceutical Sciences, Chapman University, Irvine, CA, ⁴Emergency Medicine, Brown University, Providence, RI
Background/Purpose: Gout is an inflammatory arthritis caused by precipitation of monosodium urate (MSU) crystals in synovial joints. MSU crystals interact with resident macrophages that…
Abstract Number: 995 • 2015 ACR/ARHP Annual Meeting
In Rheumatoid Arthritis Only a Few Expanded T-Cell Clones Dominate in Joint Inflammation: A Study in Seven RA Patients Undergoing Paired Synovial Tissue Biopsies in Multiple Joints
Anne Musters¹, Paul L. Klarenbeek^1,2, Marieke E. Doorenspleet^1,2, Rebecca E.E. Esveldt^1,2, Barbera D.C. van Schaik³, Sander W. Tas^1,2, Antoine H.C. van Kampen³, Frank Baas⁴ and Niek de Vries^1,2, ¹Dept. of Clinical Immunology & Rheumatology, Amsterdam Rheumatology and immunology Center | Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands, ²Dept. of Experimental Immunology, Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands, ³Bioinformatics Laboratory, Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands, ⁴Dept. of Genome Analysis, Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands
Background/Purpose: Previously we found a strong enrichment of highly expanded T-cell clones in rheumatoid arthritis (RA) synovial tissue of inflamed joints. To gain more insight…
Abstract Number: 2205 • 2015 ACR/ARHP Annual Meeting
Inhibition of Dickkopf1 Dampens Anti Osteogenic Effect of Fibroblast-like Synoviocytes
Eiji Sugiyama, Yusuke Yoshida and Satoshi Yamasaki, Department of Clinical Immunology and Rheumatology, Hiroshima University Hospital, Hiroshima, Japan
Background/Purpose: Fibroblast-Like Synoviocytes (FLS) play important roles in RA progression. Previous studies have revealed importance of FLS in osteoclast activation, however, the roles of…
Abstract Number: 1001 • 2014 ACR/ARHP Annual Meeting
Fibroblast-like Synoviocytes Inhibit Wnt Signaling Pathway By Secreting Dockcop-1
Satoshi Yamasaki and Eiji Sugiyama, Department of Clinical Immunology and Rheumatology, Hiroshima University Hospital, Hiroshima, Japan
Background/Purpose: There is evidence of osteoclast activation in the inflamed joints of patients with rheumatoid arthritis (RA). Studies that focus on osteoblasts are not sufficient…
Abstract Number: 2819 • 2014 ACR/ARHP Annual Meeting
The YAP Pathway Regulates Fibroblast-like Synoviocyte Invasion
Beatrix Bartok, Division of Rheumatology, allergy and immunology, University of California, San Diego, La Jolla, CA
Background/Purpose: Fibroblast like synoviocytes (FLS) in RA possesses unique transformed phenotype, such as cartilage invasion that is maintained independent of cytokines and other inflammatory cells.…
Abstract Number: 2465 • 2014 ACR/ARHP Annual Meeting
Cyclic Phosphatidic Acid (cPA) Suppresses MMP-3, a Disintegrin and Metalloproteinase with Thrombospondin Motifs(ADAMTS)-4, -5 and Stimulates HAS2 Expression in Inflammatory Rheumatoid Synovial Fibroblasts Induced with IL-1β and/or TNF-α
Ikuko Masuda^1,2, Kodo Okada³, Hisashi Yamanaka⁴ and Shigeki Momohara⁴, ¹Institute of Rheumatology, Tokyo Women's Medical University, Tokyo, Japan, ²Rheumatology, Jyujyo Takeda Rehabilitation Hospital, Kyoto, Japan, ³SANSHO, Co. Ltd., Tokyo, Japan, ⁴Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
Background/Purpose Cyclic phosphatidic acid (cPA) is one of bioactive lipid, has been implicated as an mediator of various biological effects including i) antiproliferative effect on…
Abstract Number: 2447 • 2014 ACR/ARHP Annual Meeting
The Role of TET3-Mediated DNA Demethylation By Pro-Inflammatory Cytokines in Rheumatoid Arthritis
Kazuhisa Nakano¹, Kunihiro Yamaoka¹, Akira Kurozumi², Akio Kawabe², Kaoru Yamagata² and Yoshiya Tanaka³, ¹The First Department of Internal Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan, ²The first department of Internal Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan, ³University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
Background/Purpose In the pathogenesis of Rheumatoid arthritis (RA) RA fibroblast-like synoviocytes (RA FLS) exhibit a unique aggressive phenotype that contributes to the cytokine milieu and…
Abstract Number: 1965 • 2014 ACR/ARHP Annual Meeting
Characterization of the Thyroid Hormone System in Rheumatoid Arthritis
Anna-Sophia Pörings¹, Torsten Lowin², Luise Rauch¹, Tanja Späth¹, Angelika Graeber² and Rainer Straub³, ¹Department of Internal Medicine I, Laboratory of Exp. Rheumatology and Neuroendocrino-Immunology, Regensburg, Germany, ²Department of Internal Medicine I, Laboratory of Exp. Rheumatology and Neuroendocrino-Immunology, University Hospital of Regensburg, Regensburg, Germany, ³Internal Medicine, University Hospital Regensburg, Regensburg, Germany
Background/Purpose: Chronic inflammation is characterized by an energy appeal reaction supporting high energy demand of the activated immune system. Thyroid hormones are strongly associated with…
Abstract Number: 1042 • 2014 ACR/ARHP Annual Meeting
IL-1β and TNF-α Promote Monocyte Viability through the Induction of GM-CSF Expression By Rheumatoid Arthritis Synovial Fibroblasts
Christelle Darrieutort-Laffite^1,2, Marie Astrid Boutet¹, Mathias Chatelais¹, Regis Brion³, Frederic Blanchard¹, Dominique Heymann³ and Benoit Le Goff^1,2, ¹Laboratoire de Physiopathologie de la Résorption Osseuse et Thérapie des Tumeurs Osseuses Primitives, INSERM, UMR 957, Nantes, France, ²Rheumatology, Nantes University Hospital, Nantes, France, ³Laboratoire de Physiopathologie de la Résorption Osseuse et Thérapie des Tumeurs Osseuses Primitives, Nantes, INSERM, UMR 957, Nantes, France
Background/Purpose Macrophages and synovial fibroblasts (SF) are two major cells implicated in the pathogenesis of rheumatoid arthritis (RA). They can interact in the synovial micro-environment…
Abstract Number: 1031 • 2014 ACR/ARHP Annual Meeting
Induction of Pro-Apoptotic Noxa Expression By Ursolic Acid Sensitizes Rheumatoid Arthritis Synovial Fibroblasts to Apoptosis: A Role of Mir-181a
Salahuddin Ahmed¹, Laura Walsh², Anil Singh¹, Maria Beamer³, Kuladeep Sudini⁴ and Douglas Leaman⁴, ¹Department of Pharmaceutical Sciences, Washington State University, Spokane, WA, ²Department of Pharmacology, University of Toledo, Toledo, OH, ³Department of Pharmacology, Department of Pharmacology, University of Toledo, Toledo, OH, ⁴Department of Biological Sciences, University of Toledo, Toledo, OH
Background/Purpose: In rheumatoid arthritis (RA), the paucity of pro-apoptotic protein expression may significantly contribute to the resistance of synovial fibroblasts (FLS) to apoptosis. In the…
Abstract Number: 2413 • 2013 ACR/ARHP Annual Meeting
Expression and Function Of a YAP, a Novel Pathway In Fibroblast-Like Synoviocyte In Rheumatoid Arthritis
Beatrix Bartok, Rheumatology, UCSD School of Medicine, La Jolla, CA
Background/Purpose: Modulating molecular pathways that regulate pathogenic behavior fibroblast-like synoviocytes (FLS) could lead to new therapies for rheumatoid arthritis (RA). Targeting transcription factors are especially…
Abstract Number: 2391 • 2013 ACR/ARHP Annual Meeting
Pathogenic Pro-Inflammatory Cytokine Production Induced By Synovial Fluid From RA Patients Is Related To Levels Of Endogenous TLR4 Ligands and Is Blocked By a Novel Therapeutic Anti-Human TLR4 Monoclonal Antibody, NI-0101
Limin Shang¹, Greg Elson¹, Jeremy Sokolove², Iain B. McInnes³, James Reilly⁴, Eric Hatterer¹, Marie Kosco-Vilbois⁵, Walter Ferlin⁵, Emmanuel Monnet⁵ and Cristina de Min⁶, ¹NovImmune S.A., Plan-Les-Ouates, Geneva, Switzerland, ²VA Palo Alto Healthcare System and Stanford University, Palo Alto, CA, ³Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom, ⁴University of Glasgow, Glasgow, United Kingdom, ⁵NovImmune S.A., Geneva, Switzerland, ⁶Novimmmune S.A., Plan-Les-Ouates, Geneva, Switzerland
Background/Purpose: Deregulation of Toll-Like Receptor 4 (TLR4) signaling is thought to play a role in the pathogenesis of certain autoimmune diseases. In rheumatoid arthritis (RA),…

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