Abstracts tagged "synovial fluid"

Abstract Number: 2450 • 2014 ACR/ARHP Annual Meeting
Downregulation of Mirna-196a and Its Downstream HOXC8 Target Gene in Rheumatoid Arthritis Synovial Fibroblasts
Maria Filkova¹, Michelle Trenkmann¹, Borbala Aradi-Vegh¹, Lenka Pleštilová¹, Joanna Stanczyk¹, Beat A. Michel², Ladislav Senolt³, Renate Gay¹, Steffen Gay⁴ and Astrid Juengel¹, ¹Center of Experimental Rheumatology, University Hospital Zurich, Zurich Schlieren, Switzerland, ²Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland, ³Institute of Rheumatology and Department of Rheumatology, 1st Faculty of Medicine, Charles University in Prague, Prague, Czech Republic, ⁴Center of Experimental Rheumatology, University Hospital Zurich, Zurich, Switzerland
Background/Purpose Comprehensive analysis of 260 miRNAs suggested a downregulation of miR-196a in rheumatoid arthritis (RA) synovial fibroblasts (SF) compared with osteoarthritis (OA) SF. Mature miR-196a…
Abstract Number: 2177 • 2014 ACR/ARHP Annual Meeting
Class a Scavenger Receptor（SR-a）Exacerbated Synovial Fibroblasts-Mediated Inflammation in Rheumatoid Arthritis
Yingni Li¹, Fanlei Hu², Li Zheng¹, Linchong Su³, Lianjie Shi², Pei Song¹ and Zhanguo Li², ¹Peking University People's Hospital, Beijing, China, ²Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China, ³Hubei Minzu University, Enshi, China
Background/Purpose Class A scavenger receptor (SR-A/CD204), mainly expressed on macrophages, plays an important role in the pathogenesis of atherosclerosis and in the pattern recognition of…
Abstract Number: 1969 • 2014 ACR/ARHP Annual Meeting
Neurotrophin Receptor p75 (CD271) Defines a Distinct Synovial Fibroblast Subset in Rheumatoid and Osteoarthritic Synovial Tissues with Enhanced Proinflammatory Potential
Manuel J. Del Rey¹, Regina Faré¹, Gabriel Criado², Alicia Usategui¹, Vanessa Miranda¹, Juan D. Cañete³ and Jose L. Pablos¹, ¹Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (I+12), Madrid, Spain, ²Grupo de Enfermedades Inflamatorias y Autoinmunes, Instituto de Investigación Hospital 12 de Octubre (I+12), Madrid, Spain, ³Arthritis Unit. Rheumatology Department, Hospital Clínic of Barcelona, Barcelona, Spain
Background/Purpose Synovial mesenchynmal or stromal cells constitute a heterogeneous cell population difficult to characterize ex vivo due to a paucity of cell markers and are…
Abstract Number: 1739 • 2014 ACR/ARHP Annual Meeting
Immunomodulatory Properties of CD271+ and CD271- Synovial Mesenchymal Cells
Alicia Usategui¹, Manuel J. Del Rey¹, Regina Faré¹, Gabriel Criado², Vanessa Miranda¹, Juan D. Cañete³ and Jose L. Pablos¹, ¹Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (I+12), Madrid, Spain, ²Grupo de Enfermedades Inflamatorias y Autoinmunes, Instituto de Investigación Hospital 12 de Octubre (I+12), Madrid, Spain, ³Arthritis Unit. Rheumatology Department, Hospital Clínic of Barcelona, Barcelona, Spain
Background/Purpose Mesenchymal stem cells (MSC) have been isolated from synovium and represent a fraction of synovial fibroblast (SF) cultures. CD271+ is considered a MSC surface…
Abstract Number: 1461 • 2014 ACR/ARHP Annual Meeting
Quantitave Analysis of Cadherin-11 and Beta-Catenin Signaling during Proliferation of Rheumatoid Arthritis-Derived Synovial Fibroblast Cells
Ryosuke Yoshioka, Yasuhiro Kita, Asako Nagahira, Atsushi Manno, Naoyuki Makita, Urara Tomita and Masao Murakawa, Asubio Pharma Co., Ltd., Kobe, Japan
[Background/Purpose ] Cadherin-11 (CDH11) is a cadherin adhesion molecule that anchors b-catenin, and is involved with various functions of synovial fibroblast cells (SFCs) during the development…
Abstract Number: 1460 • 2014 ACR/ARHP Annual Meeting
Midkine, a Growth Factor, May Play a Pathophysiological Role in Patients with Rheumatoid Arthritis
Emiko Shindo, Tomoko Hasunuma, Shotaro Masuoka, Mai Kawazoe, Hiroshi Sato, Natsuki Fujio, Kotaro Shikano, Makoto Kaburaki, Sei Muraoka, Nahoko Tanaka, Kaichi Kaneko, Tatsuhiro Yamamoto, Kenji Takagi, Natsuko Kusunoki and Shinichi Kawai, Division of Rheumatology, Department of Internal Medicine, School of Medicine, Faculty of Medicine, Toho University, Tokyo, Japan
Background/Purpose: Midkine (MK) is known as a heparin-binding growth factor. Recent studies revealed that MK has various functions such as cell proliferation, differentiation, and apoptosis…
Abstract Number: 1128 • 2014 ACR/ARHP Annual Meeting
Regulation of PIWIL4 By Histone Modifications in Rheumatoid Arthritis
Lenka Pleštilová¹, Niharika Gaur¹, Mária Filková², Borbala Aradi-Vegh¹, Ladislav Senolt³, Adrian Ciurea¹, Renate E. Gay⁴, Jiri Vencovsky³, Michel Neidhart⁵, Steffen Gay⁵ and Astrid Juengel¹, ¹Center of Experimental Rheumatology, University Hospital Zurich, Zurich Schlieren, Switzerland, ²Institute of Rheumatology and Department of Rheumatology, 1st Faculty of Medicine, Charles University in Prague, Prague, Czech Republic, ³Institute of Rheumatology and Clinic of Rheumatology, 1st Faculty of Medicine, Charles University in Prague, Prague, Czech Republic, ⁴Center of Experimental Rheumatology, Zurich University Hospital, Zurich, Switzerland, ⁵Center of Experimental Rheumatology, University Hospital Zurich, Zurich, Switzerland
Background/Purpose Analog to miRNAs that bind to argonaute proteins to suppress gene expression, a new group of non-coding RNAs piwi-interacting RNAs (piRNAs, 26-31 nt) build…
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: 1029 • 2014 ACR/ARHP Annual Meeting
Anandamide and Related Eicosanoids Decrease the Production of Pro-Inflammatory Cytokines in Synovial Fibroblasts By a COX-2 Dependent Mechanism: Involvement of Calcium and TRP Channels
Torsten Lowin¹, Tanja Späth², Angelika Graeber¹ and Rainer Straub³, ¹Department of Internal Medicine I, Laboratory of Exp. Rheumatology and Neuroendocrino-Immunology, University Hospital of Regensburg, Regensburg, Germany, ²Department of Internal Medicine I, Laboratory of Exp. Rheumatology and Neuroendocrino-Immunology, Regensburg, Germany, ³Internal Medicine, University Hospital Regensburg, Regensburg, Germany
Background/Purpose: Endocannabinoids are immunomodulatory lipid compounds that act on cannabinoid receptors type 1 and 2 but also on transient receptor potential (TRP) channels. Their action…
Abstract Number: 1025 • 2014 ACR/ARHP Annual Meeting
Leptin Production By Osteoarthritis Synovial Fibroblasts: Stimulation By Glucocorticoids and Mineralocorticoids through the Glucocorticoid Receptor and GILZ (Glucocorticoid-Induced Leucine Zipper) Protein
Olivier Malaise¹, Biserka Relic¹, Sophie Neuville², Edith Charlier¹, Dominique de Seny¹ and Michel G. Malaise¹, ¹Department of Rheumatology, GIGA Research - University of Liège - CHU of Liège, Liège, Belgium, ²GIGA Research - University of Liège - CHU of Liège, Liège, Belgium
Background/Purpose: Osteoarthritis (OA) is a metabolic disorder for which leptin is playing a catabolic role on cartilage. In mice, obesity due to impaired leptin did…
Abstract Number: 2418 • 2013 ACR/ARHP Annual Meeting
The Transmembrane Protein Tyrosine Phosphatase Kappa Promotes Aggressiveness Of Rheumatoid Arthritis Fibroblast-Like Synoviocytes
Stephanie M. Stanford¹, William B. Kiosses², Amanda M. Campbell³, Michael F. Maestre³, David L. Boyle⁴, Gary S. Firestein⁴ and Nunzio Bottini³, ¹Cellular Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, ²The Scripps Research Institute, La Jolla, CA, ³La Jolla Institute for Allergy and Immunology, La Jolla, CA, ⁴Division of Rheumatology, Allergy and Immunology, University of California at San Diego School of Medicine, La Jolla, CA
Background/Purpose: Fibroblast-like synoviocytes (FLS) in the synovial intimal lining are key mediators of inflammation and joint destruction in rheumatoid arthritis (RA). In RA these cells…
Abstract Number: 930 • 2013 ACR/ARHP Annual Meeting
The Endocannabinoid Anandamide Modulates Adhesion, Proliferation and The Production Of Inflammatory Mediators In Rheumatoid Arthritis Synovial Fibroblasts By Activating CB₁, TRPV1, TRPA1 and Non-Cannabinoid Receptor Targets
Torsten Lowin, Angelika Graeber and Rainer H. Straub, Department of Internal Medicine I, Laboratory of Exp. Rheumatology and Neuroendocrino-Immunology, University Hospital of Regensburg, Regensburg, Germany
Background/Purpose: In rheumatoid arthritis (RA), synovial fibroblasts (SF) secrete large amounts of IL-6, IL-8 and matrix metalloproteinases (MMPs) which are crucial for cartilage destruction. RASFs…
Abstract Number: 2424 • 2013 ACR/ARHP Annual Meeting
Investigation Of The Role Of Histone Deacetylases In Rheumatoid Arthritis Synovial Fibroblasts
Sarah Hawtree¹, Munitta Muthana¹, Sarah Aynsley¹, J. Mark Wilkinson² and Anthony G. Wilson³, ¹Infection and Immunity, University of Sheffield, Sheffield, United Kingdom, ²Academic Unit of Bone Metabolism, University of Sheffield, Sheffield, United Kingdom, ³Infection & Immunity, University of Sheffield, Sheffield, 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: 934 • 2013 ACR/ARHP Annual Meeting
Interleukin-12B Is Up-Regulated By Decoy Receptor 3 In Specifically Rheumatoid Synovial Fibroblasts
Koji Fukuda¹, Yasushi Miura^1,2, Toshihisa Maeda¹, Shinya Hayashi³ and Masahiro Kurosaka³, ¹Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan, ²Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Japan, ³Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
Background/Purpose: Decoy receptor 3 (DcR3) is a secreted decoy tumor necrosis factor receptor and competitively binds and inhibits the TNF family including Fas-ligand (FasL), LIGHT,…
Abstract Number: 2429 • 2013 ACR/ARHP Annual Meeting
Enhanced Responsiveness To Stimulation and Increased Extrusion Of Extracellular Traps By Rheumatoid Arthritis Neutrophil Granulocytes and of Healthy Control Neutrophils to Serum and Synovial Fluid From Rheumatoid Arthritis Patients
Stavros Giaglis^1,2, Chanchal Sur Chowdhury³, Ulrich A. Walker⁴, Andreas Buser⁵, Sinuhe Hahn⁶ and Paul Hasler¹, ¹Dept. of Rheumatology, Kantonsspital Aarau, Aarau, Switzerland, ²Dept. of Biomedicine, Laboratory of Prenatal Madicine, University Hospital Basel, Basel, Switzerland, ³Dept. of Biomedicine, Laboratory of Prenatal Diagnostics, University Hospital Basel, Basel, Switzerland, ⁴Department of Rheumatology, University Hospital Basel, Basel, Switzerland, Basel, Switzerland, ⁵Division of Hematology; Swiss Red Cross Blood Transfusion Centre, University Hospital Basel, Basel, Switzerland, ⁶Dept. of Biomedicine, Laboratory for Prenatal Medicine, University Hospital Basel, Basel, Switzerland
Background/Purpose: Polymorphonuclear granulocytes (PMNs) are the most abundant immune cell population in the synovial fluid in the joints of patients with rheumatoid arthritis (RA) and…

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