Abstracts tagged "rheumatoid arthritis (RA) and synovial cells"

Abstract Number: 21 • 2012 ACR/ARHP Annual Meeting
IL-32 and IL-17 Interact and Aggravate Osteoclastogenesis in Rheumatoid Arthritis
Bo Young Yoon¹, Young-Mee Moon², Yang-Mi Her², Hye Jwa Oh², Jae-Seon Lee², Kyoung-Woon Kim³, Seon-Yeong Lee², Yun-Ju Woo², Kyung-Su Park², Sung-Hwan Park⁴, Ho-Youn Kim² and Mi-La Cho², ¹Inje University Ilsan Paik Hospital, Goyang, South Korea, ²Rheumatism Research Center, Catholic Research Institute of Medical Science, Catholic University of Korea, Seoul, South Korea, ³Conversant Research Consortium in Immunologic disease, The Catholic University of Korea, Seoul St. Mary's Hospital, Seoul, South Korea, ⁴Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul St. Mary's Hospital, Seoul, South Korea
Background/Purpose: Interleukin (IL)-32 and IL-17 play critical roles in pro-inflammatory responses and are highly expressed in the synovium of patients with rheumatoid arthritis (RA). We…
Abstract Number: 4 • 2012 ACR/ARHP Annual Meeting
Pro-Inflammatory Effect of Extracellular RNA On Synovial Fibroblasts From Patients with Rheumatoid Arthritis
Birgit Zimmermann¹, Silvia Fischer², Markus Rickert³, Stefan Rehart⁴, Angela Lehr⁵, Ulf Müller-Ladner⁶, Klaus T. Preissner² and Elena Neumann⁷, ¹Internal Medicine and Rheumatology, Justus-Liebig-University of Gießen, Kerckhoff-Klinik, Bad Nauheim, Germany, ²Dept of Biochemistry, Justus-Liebig-University of Giessen, Medical School, Giessen, Germany, ³Dept of Orthopedics and Orthopedic Surgery, University Hospital Giessen and Marburg, Giessen, Germany, ⁴Orthopedics and Trauma Surgery, Markus-Hospital, Frankfurt, Germany, ⁵Dept Orthopedics and Trauma Surgery, Markus-Hospital, Frankfurt, Germany, ⁶Dept of Internal Medicine and Rheumatology, Justus-Liebig-University of Giessen, Kerckhoff-Klinik, Bad Nauheim, Germany, ⁷Department of Internal Medicine and Rheumatology, Justus-Liebig-University of Gießen, Kerckhoff-Klinik, Bad Nauheim, Germany
Background/Purpose: Extracellular RNA (exRNA) is present in the serum of patients suffering of different kinds of cancer. exRNA influences physiological processes like blood coagulation and…
Abstract Number: 2336 • 2012 ACR/ARHP Annual Meeting
Elevated Frequency of Synovial Interleukin-21⁺ CD4⁺ T Cells Co-Expressing Tumor Necrosis Factor-a in Rheumatoid Arthritis
Maria C. Lebre¹, Pedro L. Vieira², Saïda Aarrass³, Thomas Newsom-Davis², Paul P. Tak⁴ and Gavin R. Screaton², ¹Division of Clinical Immunology and Rheumatology, Academic Medical Center, University of Amsterdam, Amsterdam The Netherlands, Amsterdam, Netherlands, ²Department of Immunology, Imperial College London, London, United Kingdom, ³Clinical Immunology and Rheumatology, Division of Clinical Immunology and Rheumatology, Academic Medical Center, University of Amsterdam, Amsterdam The Netherlands, Amsterdam, Netherlands, ⁴Department of Experimental Immunology, Division of Clinical Immunology and Rheumatology, Academic Medical Center, University of Amsterdam and GlaxoSmithKline, Amsterdam, Netherlands
Background/Purpose: Rheumatoid arthritis (RA) is a chronic inflammatory disease affecting synovial tissue in multiple joints. The inflammatory process in RA is regulated by several cytokines,…
Abstract Number: 1782 • 2012 ACR/ARHP Annual Meeting
Dual Effects of Soluble FasL and Membrane Bound FasL On Fibroblast-Like Synoviocytes Cells (FLS) From Rheumatoid Arthritis (RA) Patients
Rachel Audo¹, Flavia Calmon-Hamaty¹, Bernard Combe², Michael Hahne¹ and Jacques Morel³, ¹IGMM, CNRS UMR5535, Montpellier, Montpellier, France, ²Rheumatology, Hopital Lapeyronie, Montpellier, France, ³Dpartment of Rheumatology, Lapeyronie Hospital, Montpellier, France
Background/Purpose: Membrane bound FasL (mFasL) is able to induce fibroblast-like synoviocytes (FLS) cell death. In experimental arthritis mouse models, injection of agonistic antibody (Ab) anti-Fas…
Abstract Number: 1768 • 2012 ACR/ARHP Annual Meeting
The Absolute Concentration of Anti Citrullinated Protein Antibodies in Serum and Synovial Fluid in Relation to Total Immunoglobulin-Concentrations
Annemiek Willemze, Jing Shi, Marlies Mulder, Gerrie Stoeken-Rijsbergen, Tom W. J. Huizinga, René E. M. Toes and Leendert A. Trouw, Rheumatology, Leiden University Medical Center, Leiden, Netherlands
Background/Purpose: The presence of anti-citrullinated protein antibodies (ACPA) is one of the most predictive factors for the development of rheumatoid arthritis (RA). Nonetheless, relatively little…
Abstract Number: 1601 • 2012 ACR/ARHP Annual Meeting
Role of Focal Adhesion Kinase in Synovial Fibroblast Invasion and Arthritis
Miriam A. Shelef¹, David Bennin² and Anna Huttenlocher³, ¹Medicine, Univ of Wisconsin Schl of Med, Madison, WI, ²Pediatrics and MMI, Univ of Wisconsin Schl of Med, Madison, WI, ³Dept of Pediatrics and MMI, Univ of Wisconsin Schl of Med, Madison, WI
Background/Purpose: Rheumatoid arthritis is an inflammatory arthritis characterized by joint erosions and destruction. This damage is mediated in part by invasion of synovial fibroblasts into…
Abstract Number: 1196 • 2012 ACR/ARHP Annual Meeting
Analysis of Gene Expression Patterns in Rheumatoid Arthritis (RA) Synovial Macrophages From Patients Undergoing Disease Flare
Karen L. Berg¹, Adedayo Hanidu¹, Jon Hill², Xiaoyu Jiang¹, Tom Freeman², Jennifer Swantek¹, Anna Yarlina³, George D. Kalliolias⁴, Lionel B. Ivashkiv⁵ and Gerald H. Nabozny¹, ¹Immunology and Inflammation, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT, ²Scientific Knowledge Discovery, Boehringer Ingelheim Pharmaceuticals Inc, Ridgefield, CT, ³Hospital for Special Surgery, New York, NY, ⁴Medicine, Hospital for Special Surgery, New York, NY, ⁵Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY
Background/Purpose: Synovial macrophages play a key role in RA pathogenesis. Their numbers are greatly increased in RA synovium, their phenotype is consistent with a pro-inflammatory…
Abstract Number: 1197 • 2012 ACR/ARHP Annual Meeting
Porphyromonas Gingivalis and the Pathogenesis of Rheumatoid Arthritis: Analysis of the Synovial Tissue and of Other Compartments
Michele C. Totaro¹, Sara D'Onghia², Elisa Gremese¹, Luca Petricca¹, Simona Marchetti², Silvia Canestri¹, Barbara Tolusso¹, Stefano Alivernini¹, Paola Cattani² and Gianfranco Ferraccioli¹, ¹Division of Rheumatology, Institute of Rheumatology and Affine Sciences, Catholic University of the Sacred Heart, Rome, Italy, ²Laboratory of Clinical Analyses CIC, Catholic University of the Sacred Heart, Rome, Italy
Background/Purpose: Porphyromonas gingivalis (Pg), a periodontal anaerobic intracellular pathogen, has been recently associated to rheumatoid arthritis (RA) and the pathogenesis of the disease, due to…
Abstract Number: 1208 • 2012 ACR/ARHP Annual Meeting
Stable Synovial Fluid Phenotype for Anti Citrullinated-Protein Antibodies in Established Rheumatoid Arthritis
Vijay Joshua¹, Lena Israelsson², Lars Klareskog³, Anca Catrina¹ and Vivianne Malmström⁴, ¹Department of Medicine, Rheumatology unit, Karolinska University Hospital, Karolinska Institute, Stockholm, Sweden, ²Department of Medicine, Karolinska Institute, Stockholm, Sweden, ³Department of Medicine, Rheumatology Unit, Karolinska Institute, Stockholm, Sweden, ⁴Rheumatology Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
Background/Purpose: Presence of anti citrullinated-protein antibodies (ACPA) in the peripheral blood of patients with rheumatoid arthritis is a validated disease biomarker. We have previously shown…
Abstract Number: 883 • 2012 ACR/ARHP Annual Meeting
Role of Phospholipase D1 (PLD1) in the Expression of Proinflammatory Genes in Rheumatoid Arthritis Synovial Fibroblasts (RASF)
Sean C. Friday¹ and David A. Fox², ¹Rheumatology, The University of Michigan, Ann Arbor, MI, ²Rheumatology/Int Medicine, Univ of Michigan Med Ctr, Ann Arbor, MI
Background/Purpose: Interleukin-17 (IL-17) and Tumor Necrosis Factor alpha (TNFa), when co-applied to RASF, induce synergistic expression of proinflammatory genes such as IL-6 and IL-8. Work…
Abstract Number: 737 • 2012 ACR/ARHP Annual Meeting
Citrullination of ENA-78/CXCL5 Results in Conversion From a Non-Monocyte Recruiting to a Monocyte Recruiting Chemokine
Ken Yoshida¹, Olex Korchynskyi², Paul P. Tak³, Takeo Isozaki⁴, Jeffrey H. Ruth⁵, Phillip Campbell⁶, Dominique L. Baeten⁷, Danielle M. Gerlag⁷, M. Asif Amin⁸ and Alisa E. Koch⁹, ¹Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, ²Department of Cellular Proliferation and Apoptosis, Institute of Cell Biology, Lviv, Ukraine, ³Departments of Experimental Immunology and Internal Medicine, GlaxoSmithKline U.K. and Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands, ⁴Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, ⁵Internal Medicine, Division of Rheumatology, University of Michigan Medical Center, Ann Arbor, MI, ⁶Department of Internal Medicine, University of Michigan, Ann Arbor, MI, ⁷Division of Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands, ⁸Department of Medicine, University of Michigan, Ann Arbor, MI, ⁹Internal Medicine - Rheumatology, University of Michigan Medical School, Ann Arbor, MI
Background/Purpose: Citrullination is a post-translational modification that is the conversion of arginine to citrulline in proteins mediated by peptidylarginine deiminase (PAD). Antibodies directed towards the…
Abstract Number: 434 • 2012 ACR/ARHP Annual Meeting
IL-22 Mediated Pannus Formation in Autoimmune Arthritis Is PI3K/Akt/mTOR Dependent
Siba P. Raychaudhuri¹, Anupam Mitra¹, Ananya Datta Mitra², Christine Abria² and Smriti K. Raychaudhuri², ¹Rheumatology, VA Sacramento Medical CenterUC Davis School of Medicine, Mather, CA, ²Rheumatology, VA Sacramento Medical Center, Mather, CA
Background/Purpose: IL-22, a Th17 cytokine plays a key role in the formation of “pannus” in autoimmune arthritis such as rheumatoid arthritis (RA) and psoriatic arthritis…
Abstract Number: 438 • 2012 ACR/ARHP Annual Meeting
Methyl Supplementation of Rheumatoid Arthritis Synovial Fibroblasts Regulates the Expression of Transcription Factors and Matrix Metalloproteinases
Edvardas Bagdonas¹, Emmanuel Karouzakis², Astrid Jungel², Caroline Ospelt¹, Renate E. Gay¹, Steffen Gay¹, Beat A. Michel¹ and Michel Neidhart¹, ¹Center of Experimental Rheumatology, University Hospital Zurich, Zurich, Switzerland, ²Center of Experimental Rheumatology, University Hospital Zurich and Zurich Center of Integrative Human Physiology (ZIHP), Zurich, Switzerland
Background/Purpose: Previously we reported that methyl supplementation can reverse the global hypomethylation of rheumatoid arthritis synovial fibroblasts (RASF) and attenuate their aggressive behaviour. Now we…
Abstract Number: 415 • 2012 ACR/ARHP Annual Meeting
Hypoxia-Induced Endogenous Prostaglandin E2 Negatively Regulates Hypoxia-Enhanced Aberrant Overgrowth of Rheumatoid Synovial Tissue
Hirofumi Mitomi¹, Hidehiro Yamada¹, Toshiko Nozaki Shibata¹, Hiroshi Ito¹, Yoshioki Yamasaki², So Nomoto³, Atsushi Kusaba⁴, Hiroki Yamashita⁴ and Shoichi Ozaki¹, ¹Internal Medicine, St. Marianna University, Kawasaki, Japan, ²Medicine, St. Marianna University, Kawasaki, Japan, ³Department of Orthopedic Surgery and Rheumatology, Saiseikai Yokohamashi Tobu Hospital, Yokohama, Japan, ⁴Institute of Rheumatology, Ebina General Hospital, Ebina, Japan
Background/Purpose: During isometric exercise, the synovial joint tissue is prone to hypoxia, which is further enhanced in the presence of synovial inflammation. Hypoxia is also…

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