Abstracts tagged "pathogenesis"

Abstract Number: 1621 • 2015 ACR/ARHP Annual Meeting
Genetic Contributions to Radiographic Damage in African Americans with Rheumatoid Arthritis on a Panel of Autoimmune Disease Markers
Vincent A. Laufer¹, Richard J. Reynolds², Peter K. Gregersen³, S. Louis Bridges Jr.⁴, Maria I. Danila⁵ and CLEAR Investigators, ¹Division of Clinical Rheumatology and Immunology, University of Alabama at Birmingham, Birmingham, AL, ²Medicine, University of Alabama at Birmingham, Birmingham, AL, ³Robert S. Boas Center for Genomics and Human Genetics, Feinstein Institute for Med Res, Manhasset, NY, ⁴Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL, ⁵AL
Background/Purpose: Rheumatoid arthritis (RA) is a complex autoimmune condition affecting 0.5-1% of populations worldwide and having a significant heritable component. A major endophenotype within RA…
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: 2133 • 2015 ACR/ARHP Annual Meeting
Receptor Protein Tyrosine Phosphatase Alpha Enhances Rheumatoid Synovial Fibroblast Signaling and Promotes Arthritis in Mice
Stephanie M. Stanford¹, Mattias N. D. Svensson¹, Cristiano Sacchetti¹, Caila A. Pilo¹, Dennis J. Wu¹, William B. Kiosses², Annelie Hellvard³, Brith Bergum³, German R. Aleman Muench¹, Christian Elly¹, Yun-Cai Liu¹, Jeroen den Hertog^4,5, Ari Elson⁶, Jan Sap⁷, Piotr Mydel³, David L. Boyle⁸, Maripat Corr⁸, Gary S. Firestein⁸ and Nunzio Bottini¹, ¹Cellular Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, ²The Scripps Research Institute, La Jolla, CA, ³Clinical Science, Broegelmann Research Laboratory, Bergen, Norway, ⁴Hubrecht Institute-Koninklijke Nederlands Akademie van Wetenschappen and University Medical Center Utrecht, Utrecht, Netherlands, ⁵Institute of Biology Leiden, Leiden, Netherlands, ⁶Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel, ⁷Epigenetics and Cell Fate, Université Paris Diderot Sorbonne Paris Cité, Paris, France, ⁸Division of Rheumatology, Allergy and Immunology, University of California at San Diego School of Medicine, La Jolla, CA
Background/Purpose: Rheumatoid arthritis (RA) fibroblast-like synoviocytes (FLS) promote disease pathogenesis by aggressively invading the joint extracellular matrix. The focal adhesion kinase (FAK) signaling pathway is…
Abstract Number: 2605 • 2015 ACR/ARHP Annual Meeting
14-3-3η Positive Status and Higher Titres Are Associated with More Severe RA
Shintaro Hirata¹, Kentaro Hanami², Anthony Marotta³ and Yoshiya Tanaka⁴, ¹The First Department of Internal Medicine, University of Occupational & Environmental Health, Japan, Kitakyushu, Japan, ²The First Department of Internal Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan, ³Augurex Life Sciences Corp., Vancouver, BC, Canada, ⁴The First Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
Background/Purpose: Serum 14-3-3η is an RA diagnostic marker that is associated with radiographic progression risk. In vitro studies describe 14-3-3η's potent, dose-dependent up-regulation of factors…
Abstract Number: 2699 • 2015 ACR/ARHP Annual Meeting
Muscle Inflammation Relates to Disease Activity and Disability but Not Insulin Resistance in Rheumatoid Arthritis
Ryan Jessee¹, Rachel Narowski², Monica Hubal³, Janet Huebner⁴, Virginia Kraus⁵, William Kraus⁶ and Kim Huffman^2,7, ¹Internal Medicine, Duke University Medical Center, Durham, NC, ²Duke Molecular Physiology Institute, Duke University Medical Center, Durham, NC, ³Research and Education, George Washington University School of Medicine and Health Sciences, Washington, DC, ⁴Duke Molecular Physiology Institute,, Duke University Medical Center, Durham, NC, ⁵Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, ⁶Division of Cardiology, Duke University Medical Center, Durham, NC, ⁷Durham Veterans Affairs Medical Center, Durham, NC
Background/Purpose: Rheumatoid arthritis (RA) is associated with increased cardiovascular disease, insulin resistance, and disability. Our objectives were to analyze levels of skeletal muscle inflammatory cytokines…
Abstract Number: 2706 • 2015 ACR/ARHP Annual Meeting
3D Location of Erosions in an Early Rheumatoid Arthritis Population: An MRI Study Using Statistical Shape Models with Implications for Pathogenesis
Michael A. Bowes¹, Gwenael Guillard¹, Z. Xie², Bethanie Wilkinson² and Philip G. Conaghan³, ¹Imorphics, Manchester, United Kingdom, ²Pfizer Inc, Groton, CT, ³University of Leeds & NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds, United Kingdom
Background/Purpose: Concepts of erosion pathogenesis in rheumatoid arthritis (RA) have been based on radiographs, although MR images are much better able to visualise erosions. Statistical…
Abstract Number: 2710 • 2015 ACR/ARHP Annual Meeting
Necrox-7 Inhibits Cell Aggressiveness By Suppressing of NF-Kappa B Activation and Reactive Oxygen Species Generation in Human Rheumatoid Arthritis Fibroblast-like Synoviocytes
Hyun Jung Yoo^1,2, Jin Kyun Park², Eun Young Lee², Eun Bong Lee² and Yeong Wook Song^2,3, ¹Department of Molecular Medicine and Biopharmaceutical Sciences, BK21 plus Graduate School of Convergence Science and Technology, and College of Medicine or College of Pharmacy, Seoul National University, Seoul, South Korea, ²Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea, ³Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology and College of Medicine Seoul National University, Seoul, South Korea
Background/Purpose: Rheumatoid arthritis (RA) is characterized by hyperplastic synovial pannus tissue, which mediates destruction of cartilage and bone. Fibroblast-like synoviocytes (FLS) are a key component…
Abstract Number: 39 • 2014 ACR/ARHP Annual Meeting
Human CD14⁺ Monocytes Stimulated with a Combination of TNFα and IL-6 Differentiate into Osteoclast-like Cells with Bone-Resorption Activity
Kazuhiro Yokota¹, Kojiro Sato², Yoshimi Aizaki², Yuji Akiyama² and Toshihide Mimura², ¹Department of Rheumatology & Applied Immunology, Faculty of Medicine, Saitama Medical University, Saitama, Japan, ²Department of Rheumatology and Applied Immunology, Faculty of Medicine, Saitama Medical University, Saitama, Japan
Background/Purpose Proinflammatory cytokines play an important role in bone destruction in rheumatoid arthritis (RA), as inferred by the efficacy of biologics. Previously, we reported that…
Abstract Number: 2847 • 2014 ACR/ARHP Annual Meeting
Survivin Co-Ordinates Formation of Follicular T-Cells in Rheumatoid Arthritis
Maria Bokarewa¹, Karin Andersson², Malin Erlandsson², Mattias Svensson², Nicola Cavallini³ and Mikael Brisslert², ¹Guldhedsgatan 10, University of Goteborg, Goteborg, Sweden, ²Rheumatology and Inflammation Research, University of Gothenburg, Gothenburg, Sweden, ³Rheumatology and Inflammation Research, University of Göteborg, Göteborg, Sweden
Background/Purpose Survivin is a proto-oncogene that regulates cell division and apoptosis. Recently, survivin has emerged as a biomarker of persistently active and joint destructive rheumatoid…
Abstract Number: 2799 • 2014 ACR/ARHP Annual Meeting
The Differential Impact of Obesity on the Pathogenesis of RA or Preclinical Models Is Contingent on the Disease Status
Zhenlong Chen¹, Seung-jae Kim¹, Abdul Essani², Michael V. Volin³, Suncica Volkov¹, William Swedler⁴, Shiva Arami², Giamila Fantuzzi², Nadera J. Sweiss⁵ and Shiva Shahrara¹, ¹Medicine/Rheumatology, University of Illinois at Chicago, Chicago, IL, ²University of Illinois at Chicago, Chicago, IL, ³Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine Midwestern University, Downers Grove, IL, ⁴Section of Rheumatology, University of Illinois at Chicago, Chicago, IL, ⁵internal medicine section of rheumatology, University of Illinois at Chicago, Chicago, IL
Background/Purpose: Studies were performed to determine the significance of obesity in the pathogenesis of rheumatoid arthritis (RA) and experimental arthritis models. Methods: Chronic and acute…
Abstract Number: 2673 • 2014 ACR/ARHP Annual Meeting
High-Throughput Sequencing of 219 Candidate Genes for Identification of SLE-Associated Risk Variants
Fabiana Farias¹, Maria Wilbe², Johanna Dahlqvist¹, Dag Leonard³, Sergey Kozyrev¹, Gerli Pielberg¹, Maija-Leena Eloranta³, Lars Rönnblom³ and Kerstin Lindblad-Toh^1,4, ¹Department of Medical Biochemistry and Microbiology, Uppsala University, Science for Life Laboratory, Uppsala, Sweden, ²Department of Immunology, Genetics and Pathology, Uppsala University, Science for Life Laboratory, Uppsala, Sweden, ³Department of Medical Sciences, SciLife Lab, Rheumatology, Uppsala University, Uppsala, Sweden, Uppsala, Sweden, ⁴Broad Institute, Cambridge, MA
Background/Purpose: Systemic lupus erythematosus (SLE) is a complex autoimmune disease, believed to arise from environmental triggering events in genetically predisposed individuals. To date, more than…
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: 2448 • 2014 ACR/ARHP Annual Meeting
DNA Methylation Analysis of Lymph Node Stromal Cells of Rheumatoid Arthritis Patients
Emmanuel Karouzakis¹, Caroline Ospelt¹, Janine Hähnlein², Renate E. Gay³, Paul Peter Tak⁴, Danielle Marie Gerlag⁵, Michel Neidhart¹, Steffen Gay¹ and Lisa G.M. van Baarsen², ¹Center of Experimental Rheumatology, University Hospital Zurich, Zurich, Switzerland, ²Division of Clinical Immunology and Rheumatology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands, ³Center of Experimental Rheumatology, Zurich University Hospital, Zurich, Switzerland, ⁴University of Cambridge,Cambridge and GlaxoSmithKline, Stevenage, United Kingdom, ⁵GSK,Clinical Unit Cambridge,R&D Projects Clinical Platforms & Sciences, Cambridge, United Kingdom
Background/Purpose Lymph node stromal cells (LNSC) build the scaffold that enables migration and interaction of lymphocytes in the lymph node. More recently, it has been…
Abstract Number: 2449 • 2014 ACR/ARHP Annual Meeting
Microrna-346 Regulation of Follicular Helper T Cells Is Involved in the Pathogenesis of rheumatoid Arthritis Disease
Xinyi Tang¹, Jie Ma² and Shengjun Wang³, ¹Department of Laboratory Medicine, Jiangsu University Affi�liated People’s Hospital, Zhenjiang, China, ²Department of Laboratory Medicine, Jiangsu University Afﬁliated People’s Hospital, Zhenjiang, China, ³Department of Laboratory Medicine, Jiangsu University Affiliated People’s Hospital, Zhenjiang, China
Background/Purpose Follicular helper T (Tfh) cells have been identified as a new subset of effector helper T cells that are essential in regulating the development…
Abstract Number: 2165 • 2014 ACR/ARHP Annual Meeting
Myeloid-Derived Suppressor Cells in Rheumatoid Arthritis: Friend or Foe?
Fanlei Hu¹, Chunqing Guo², Xiang-Yang Wang² and Zhanguo Li¹, ¹Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China, ²Department of Human and Molecular Genetics, Virginia Commonwealth University School of Medicine, Richmond, VA
Background/Purpose Although myeloid-derived suppressor cells (MDSCs) have been linked to T-cell tolerance, their role in rheumatoid arthritis (RA) remains exclusive. Here, we investigated the potential…

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