Abstracts tagged "pathogenesis"

Abstract Number: 2577 • 2012 ACR/ARHP Annual Meeting
Characterization of Circulating Human B Cells That Bind Cyclic Citrullinated Peptide Antigens in Clinically Active Rheumatoid Arthritis
Gregg J. Silverman¹, John Jung², Jeffrey D. Greenberg³, Adam J. Pelzek⁴, Caroline Gronwall⁵ and Jaya Vas⁵, ¹Medical and Pathology, NYU School of Medicine, New York, NY, ²School of Medicine, NYU, New York, NY, ³New York Hospital for Joint Disease, New York, NY, ⁴School of Medicine, NYU School of Medicine, New York, NY, ⁵Rheumatology, NYU School of Medicine, New York, NY
Background/Purpose: Anti-citrullinated protein antibodies (ACPA) were first identified based on their high specificity for RA and now are commonly used as a diagnostic tool. Yet,…
Abstract Number: 1175 • 2012 ACR/ARHP Annual Meeting
Decreased Frequency of Th17 Cells in Early Rheumatoid Arthritis
Irene Arroyo-Villa¹, M. Belén Bautista-Caro¹, Alejandro Balsa², Pilar Aguado², Laura Nuño², Gema Bonilla³, Amaya Puig-Kröger⁴, Emilio Martín-Mola² and M. Eugenia Miranda-Carús², ¹Rheumatology, Hospital La Paz - IdiPaz, Madrid, Spain, ²Hospital La Paz-IdiPaz, Madrid, Spain, ³Rheumatology, Hospital La Paz, Madrid, Spain, ⁴Immuno-oncology, Hospital Gregorio Marañon, Madrid, Spain
Background/Purpose: Our objective was to examine the frequency and phenotype of Th17 cells in the peripheral blood of early RA (eRA) patients. Methods: CD4+ T…
Abstract Number: 2524 • 2012 ACR/ARHP Annual Meeting
Snapin Is Critical for the Maturation of Autophagosome and Phagosome in Macrophages
Bo Shi¹, Qiquan Huang², Robert Birkett¹, Renee E. Koessler³, Andrea Dorfleutner⁴, Christian Stehlik⁴ and Richard M. Pope⁵, ¹Division of Rheumatology, Department od Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, ²Division of Rheumatology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, ³Rheumatology, Northwestern University Feinberg school of Medicine, Chicago, IL, ⁴Medicine/Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, ⁵Division of Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL
Background/Purpose: We found that Snapin, a SNARE complex protein required for synaptic vesicle docking and fusion, was significantly increased in rheumatoid arthritis (RA) synovial tissue…
Abstract Number: 414 • 2012 ACR/ARHP Annual Meeting
First-Degree Relatives without Rheumatoid Arthritis Exhibit Reactivity to Multiple Anti-Citrullinated Protein Antibodies in Association with Rheumatoid Arthritis-Related Clinical Characteristics: Studies of the Etiology of Rheumatoid Arthritis
Kendra A. Young¹, Kevin D. Deane², Lezlie A. Derber³, Jan M. Hughes-Austin⁴, Michael H. Weisman⁵, Jane H. Buckner⁶, Ted R. Mikuls⁷, James R. O'Dell⁸, Richard M. Keating⁹, Peter K. Gregersen¹⁰, V. Michael Holers¹¹ and Jill M. Norris¹, ¹Epidemiology, Colorado School of Public Health, Aurora, CO, ²Division of Rheumatology, University of Colorado School of Medicine, Aurora, CO, ³University of Colorado School of Medicine, Division of Rheumatology, Aurora, CO, ⁴Epidemiology, Colorado School of Public Health / University of Colorado Anschutz Medical Campus, Aurora, CO, ⁵Rheumatology, Cedars-Sinai Medical Center, Los Angeles, CA, ⁶Benaroya Research Institute at Virginia Mason, Seattle, WA, ⁷Omaha VA Medical Center and University of Nebraska Medical Center, Omaha, NE, ⁸Dept of Internal Medicine, Univ of Nebraska Med Ctr, Omaha, NE, ⁹Rheumatology Section, The University of Chicago, Chicago, IL, ¹⁰Genomics and Human Genetics, Feinstein Institute for Medical Research, Manhasset, NY, ¹¹Rheumatology Division, University of Colorado School of Medicine, Aurora, CO
Background/Purpose: Prior to diagnosis of rheumatoid arthritis (RA), there are increases in the number of citrullinated proteins that anti-citrullinated protein antibodies (ACPA) target, suggesting an…
Abstract Number: 2454 • 2012 ACR/ARHP Annual Meeting
Expression of TLR5 Strongly Correlates with Levels of TNF-a and DAS28 in RA Monocytes and Ligation of TLR5 Induces Angiogenesis in RA
Nathan D. Chamberlain¹, Michael Volin², Olga M. Vila³, Shiva Arami⁴, Suncica Volkov⁵ and Shiva Shahrara¹, ¹Medicine/Rheumatology, University of Illinois at Chicago, Chicago, IL, ²Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine Midwestern University, Downers Grove, IL, ³University of Illinois at Chicago, Chicago, IL, ⁴Medicine - Rheumatology, University of Illinois at Chicago, Chicago, IL, ⁵Rheumatology/MC 733, University of Illinois at Chicago, Chicago, IL
Background/Purpose: This study was performed to determine whether expression of TLR5 is associated with Rheumatoid Arthritis (RA) disease activity as well as to examine the…
Abstract Number: 427 • 2012 ACR/ARHP Annual Meeting
Epigenetic Features As Predictive Markers of Responsiveness to Epitope-Specific Therapy in Rheumatoid Arthritis
Roberto Spreafico¹, Maura Rossetti¹, Theodorus Van Der Broek¹, Olivia Morrow¹ and Salvatore Albani², ¹Translational Immunology, Sanford-Burnham Medical Research Institute, La Jolla, CA, ²Translational Research Program, Infectious and Inflammatory Diseases, Sanford-Burnham Medical Research Institute, La Jolla, CA
Background/Purpose: The focus of current research for new therapeutic approaches in Rheumatoid arthritis (RA) is shifting from mere suppression to induction and maintenance of tolerance.…
Abstract Number: 2312 • 2012 ACR/ARHP Annual Meeting
Senescent T Cells Promote Bone Loss in Rheumatoid Arthritis
Johannes Fessler¹, Rusmir Husic², Elisabeth Lerchbaum³, Verena Schwetz³, Claudia Stiegler³, Barbara Obermayer-Pietsch³, Winfried B. Graninger⁴ and Christian Dejaco⁵, ¹Rheumatology and Immunology, Medical University Graz, Graz, Austria, ²Rheumatology, Medical University Graz, Graz, Austria, ³Division of Endocrinology and Metabolism, Medical University Graz, Graz, Austria, ⁴Internal medicine/Rheumatology and Immunology, Medical University Graz, Graz, Austria, ⁵Rheumatology, Southend University Hospital, Westcliff-on-Sea, United Kingdom
Background/Purpose: To study the influence of aged CD28-T cells on systemic osteoporosis in rheumatoid arthritis (RA) patients. Methods: Prospective, cross-sectional study on 100 patients with…
Abstract Number: 406 • 2012 ACR/ARHP Annual Meeting
βig-h3 Regulates the Inflammatory Arthritis by Mediating Selective Recruitment of Effector/Memory T Cells
Keum Hee Sa¹, Jin Hee Kang¹, Mahmudul Md Alam¹, Kyung Hwa Lee¹, Churl Hyun Im¹, Eon Jeong Nam¹, In San Kim² and Young Mo Kang³, ¹Internal Medicine (Rheumatology), Kyungpook National University School of Medicine, Daegu, South Korea, ²Biochemistry & Cell Biology, Cell and Matrix Research Institute, Kyungpook National University School of Medicine, Daegu, South Korea, ³Department of Internal Medicine (Rheumatology), Kyungpook National University School of Medicine, Daegu, South Korea
Background/Purpose: Transforming growth factor-beta inducible gene-h3 (βig-h3) is abundantly expressed in synovial tissues of rheumatoid arthritis (RA) and has a regulatory role in growth, differentiation,…
Abstract Number: 2320 • 2012 ACR/ARHP Annual Meeting
Superantigen Induces IL-17 Production From Extremely Polarized Th1 Clones
Kentaro Yomogida¹, Yuan K. Chou¹ and Cong-Qiu Chu², ¹Division of Arthritis and Rheumatic Diseases, Oregon Health & Science University, Portland, OR, ²Rheumatology, Oregon Health & Science Univ and Portland VA Medical Center, Portland, OR
Background/Purpose: Differentiation of naïve CD4+ T cells is considered to be an irreversible event and, in particular, the plasticity is thought to be completely lost…
Abstract Number: 408 • 2012 ACR/ARHP Annual Meeting
Alpha-Enolase Facilitates Migration of Fibroblast-Like Synoviocytes in Rheumatoid Arthritis
Kichul Shin¹, Ji Ah Park², Seyeon Bae³, Jae Seung Kang³ and Yeong Wook Song⁴, ¹Rheumatology, College of Medicine, Seoul National University, Seoul, South Korea, ²Division of Rheumatology, Department of Internal Medicine,, Seoul National Hospital, Seoul, South Korea, ³Department of Anatomy and Tumor Immunity Medical Research Center, College of Medicine, Seoul National University, Seoul, South Korea, ⁴Division of Rheumatology, Department of Internal Medicine, Seoul National University, Seoul, South Korea
Background/Purpose:Alpha-enolase (ENO1) is a multifunctional glycolytic enzyme ubiquitously expressed in the cytoplasm. Citrullinated ENO1 is reported to be a candidate autoantigen in rheumatoid arthritis (RA),…
Abstract Number: 1767 • 2012 ACR/ARHP Annual Meeting
Circulating Plasmablasts As a Source of Anti-Citrullinated Protein Antibodies in Patients with Rheumatoid Arthritis
Priscilla Kerkman, Ellen I.H. van der Voort, Leendert A. Trouw, Tom W.J. Huizinga, René E.M. Toes and Hans Ulrich Scherer, Rheumatology, Leiden University Medical Center, Leiden, Netherlands
Background/Purpose: Anti citrullinated protein antibodies (ACPA) are highly specific for rheumatoid arthritis (RA) and predict disease onset and severity. Accumulating evidence indicates that ACPA could…
Abstract Number: 328 • 2012 ACR/ARHP Annual Meeting
IL-7; An Important Pro-Inflammatory Factor That Affects Myeloid Cell Function in RA and CIA
Nathan D. Chamberlain¹, Seung-jae Kim², Michael Volin³, Anjali Mehta², Nadera J. Sweiss⁴ 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, ⁴internal medicine section of rheumatology, University of Illinois at Chicago, Chicago, IL
Background/Purpose: The aim of the study was to examine the role of IL-7 in the pathogenesis of rheumatoid arthritis (RA) as well as in collagen…
Abstract Number: 1690 • 2012 ACR/ARHP Annual Meeting
Citrullination within the Atherosclerotic Plaque: A New Potential Target for Anti-Citrullinated Protein Antibodies
Jeremy Sokolove¹, Orr Share¹, Matthew Brennan¹, Lauren J. Lahey¹, Amy H. Kao², Eswar Krishnan³, Mary Chester M. Wasko⁴ and William H. Robinson⁵, ¹Medicine, VA Palo Alto Health Care System and Stanford University, Palo Alto, CA, ²Lupus Center of Excellence, Allegheny Singer Research Institute, Pittsburgh, PA, ³Medicine, Standford University, Palo Alto, CA, ⁴West Penn Allegheny Health System, Temple University School of Medicine, Pittsburgh, PA, ⁵Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA
Background/Purpose: Patients with rheumatoid arthritis (RA) are at increased risk for cardiovascular disease due to accelerated atherosclerosis. This risk has mainly been limited to seropositive…
Abstract Number: 36 • 2012 ACR/ARHP Annual Meeting
Role of FK506 Binding Protein 5 in Osteoclast Differentiation
Miho Kimura¹, Tatsuo Nagai², Reiko Matsushita², Atsushi Hashimoto³, Toshiyuki Miyashita⁴ and Shunsei Hirohata⁵, ¹Rheumatology and Infectious diseases, Kitasato University School of Medicine, Sagamihara, Japan, ²Rheumatology and Infectious Diseases, Kitasato University School of Medicine, Sagamihara, Japan, ³Department of Rheumatology, National Hospital Organization Sagamihara Hospital, Kanagawa, Japan, ⁴Molecular Genetics, Kitasato University School of Medicine, Sagamihara, ⁵Int Med/Rheumatol & Infec Dis, Kitasato University School of Medicine, Sagamihara, Japan
Background/Purpose: RA is a chronic, systemic inflammatory disease characterized by the destruction of bone in the joints. Moreover, it is well appreciated that systemic osteoporosis…
Abstract Number: 1692 • 2012 ACR/ARHP Annual Meeting
Lung Microbiome Differs in Subjects with Rheumatoid Arthritis-Related Autoimmunity without Inflammatory Arthritis Compared to Healthy Seronegative Controls
M. Kristen Demoruelle¹, Jill M. Norris², V. Michael Holers³, Kevin D. Deane¹ and J. Kirk Harris⁴, ¹Division of Rheumatology, University of Colorado School of Medicine, Aurora, CO, ²Epidemiology, Colorado School of Public Health, Aurora, CO, ³Rheumatology Division, University of Colorado School of Medicine, Aurora, CO, ⁴University of Colorado Anschutz Medical Campus, Aurora, CO
Background/Purpose: Emerging data suggest that microorganisms and mucosal inflammation may play a role in the etiology of rheumatoid arthritis (RA). Furthermore, our published findings…

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