Abstracts tagged "pathogenesis"

Abstract Number: 584 • 2016 ACR/ARHP Annual Meeting
Glycoprotein VI: A Potential Target for ACPA-Mediated Platelet Activation?
John Stack¹, Anne Madigan², Laura Helbert¹, Niamh Redmond¹, Eimear Dunne³, Dermot Kenny³ and Geraldine M. McCarthy², ¹Rheumatology, Mater Misericordiae University Hospital, Dublin, Ireland, ²Rheumatology, Mater Misericordiae University Hospital, Dublin 7, Ireland, ³Molecular and Cellular Therapeutics, RCSI, Dublin 2, Ireland
Background/Purpose: Arterial thrombosis is a major cause of mortality in rheumatoid arthritis (RA),especially in anti-citrullinated protein antibody (ACPA)-positive patients Recent studies suggest that platelet activation…
Abstract Number: 3019 • 2016 ACR/ARHP Annual Meeting
Sputum Antibodies to Individual Citrullinated Protein/Peptide Antigens Are Elevated in Subjects at-Risk of Future RA and Subjects with Established Disease
Emily Bowers¹, M. Kristen Demoruelle², Michael Weisman³, Jill M. Norris⁴, William H. Robinson⁵, V. Michael Holers² and Kevin D. Deane², ¹Medicine, University of Colorado Denver, Aurora, CO, ²Rheumatology Division, University of Colorado Denver, Aurora, CO, ³Cedars-Sinai Medical Center, Los Angeles, CA, ⁴Epidemiology, Colorado School of Public Health, Aurora, CO, ⁵Stanford University School of Medicine, Stanford, CA
Background/Purpose: Multiple studies demonstrate that ACPAs are elevated in the serum years prior to the onset of seropositive RA during a preclinical period of autoimmunity.…
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: 2711 • 2015 ACR/ARHP Annual Meeting
The Lung Microbiome in Rheumatoid Arthritis and Associated Local/Systemic Autoimmunity
Jose U. Scher¹, Vijay Joshua², Carles Ubeda³, Alejandro Artacho³, Leopoldo Segal⁴ and Anca I Catrina⁵, ¹Department of Medicine, Division of Rheumatology, New York University School of Medicine, New York, NY, ²Cmm L8:04, Karolinska Institutet, Stockholm, Sweden, ³Institute for Research in Public Health, Valencia, Spain, ⁴Medicine, Pulmonay Division, NYU School of Medicine, New York City, NY, ⁵Department of Medicine, Solna, Unit of Rheumatology, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden
Background/Purpose: Rheumatoid arthritis (RA) is a complex autoimmune disorder in which several genetic and environmental factors play a role. Recent data suggest that the gut…
Abstract Number: 483 • 2015 ACR/ARHP Annual Meeting
Antibody to Malondialdehyde-Acetaldehyde (MAA) Adducts Serve As Biomarkers of Treatment Response in Rheumatoid Arthritis
Ted R. Mikuls¹, Brian Coburn¹, Harlan Sayles², Fang Yu³, Mary Brophy⁴, James R. O'Dell¹, Lynell W. Klassen⁵ and Geoffrey M. Thiele¹, ¹Omaha VA Medical Center and University of Nebraska Medical Center, Omaha, NE, ²University of Nebraska Medical Center, Omaha, NE, ³Public Health, University of Nebraska Medical Center, Omaha, NE, ⁴VA Boston Heathcare System, Boston, MA, ⁵Dept of Internal Medicine, Omaha VA Medical Center and University of Nebraska Medical Center, Omaha, NE
Background/Purpose: Previous reports have demonstrated that malondialdehyde-acetaldehyde (MAA) adducts are produced as a byproduct of oxidative stress and lipid peroxidation and are expressed in…
Abstract Number: 2723 • 2015 ACR/ARHP Annual Meeting
Basal STAT5 Signaling Is Elevated in Multiple Peripheral Blood Cell Subsets in Rheumatoid Arthritis and Is Markedly Downregulated By IFN-Î³ in T Lymphocytes
Molly Boland¹, Yanna Ding², Surabhi Vinod³, S. Louis Bridges Jr.⁴ and Chander Raman¹, ¹Medicine/Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL, ²Medicine/Division of Clinical Immunology and Rheumatology, University of Alabama Birmingham, Birmingham, AL, ³University of Alabama at Birmingham, Birmingham, AL, ⁴Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL
Background/Purpose: The importance of type I interferons (IFN-α and others) as a driver of pathogenesis in autoimmunity, including rheumatoid arthritis (RA) is well recognized. However,…
Abstract Number: 519 • 2015 ACR/ARHP Annual Meeting
In Indigenous North Americans at High Risk for RA Complement C5 Level Is Associated with ACPA Positivity and C5a with Transition to Synovitis Even after Correcting for in Vitro Complement Activation Found with Prolonged Sample Storage
Ceri Richards¹, Carol Hitchon², Xiaobo Meng³, Irene Smolik⁴, David Robinson⁴ and Hani S. El-Gabalawy⁴, ¹Internal Medicine, University of Manitoba, Winnipeg, MB, Canada, ²Department of Rheumatology, University of Manitoba, Winnipeg, MB, Canada, ³University of Manitoba, Winnipeg, MB, Canada, ⁴Arthritis Center, University of Manitoba, Winnipeg, MB, Canada
Background/Purpose: Complement activation, a key component of innate immunity and activator of adaptive immunity has been linked to RA pathogenesis. Anti-citrullinated peptide antibody (ACPA) and…
Abstract Number: 3085 • 2015 ACR/ARHP Annual Meeting
Platelet Activation and Endothelial Reactivity in the Pathogenesis of Tissue Inflammation/Injury in Systemic Lupus Erythematosus
Robert Clancy¹, Sokha Nhek², Jonathan Newman³, Janet Nwaukoni¹, Sara Rasmussen⁴, Jill P. Buyon¹, Maya Rubin⁵, Kristen Lee¹ and Jeffrey Berger⁵, ¹Medicine, Division of Rheumatology, New York University School of Medicine, New York, NY, ²New York University School of Medicine, New York, NY, ³Medicine, New York University School of Medicine, New York, NY, ⁴Department of Medicine, Division of Rheumatology, New York University School of Medicine, New York, NY, ⁵Medicine, Division of Cardiology, New York University School of Medicine, New York, NY
Background/Purpose: Patients with systemic lupus erythematosus (SLE) are at increased risk for widespread endothelial dysfunction, vascular thromboses, and premature cardiovascular disease. Enhanced platelet activation and…
Abstract Number: 535 • 2015 ACR/ARHP Annual Meeting
Taurine As a Biomarker for Prediction of Response to Biologic Therapy in Rheumatoid Arthritis
Soshi Takahashi¹, Jun Saegusa², Ikuko Naka¹, Kosaku Tsuda¹, Takaichi Okano¹, Kengo Akashi¹, Miwa Nishida¹, Keisuke Nishimura², Sho Sendo², Yo Ueda¹, Akira Onishi³, Yoshinori Kogata², Goichi Kageyama² and Akio Morinobu², ¹Department of Rheumatology, Kobe University Hospital, Kobe, Japan, ²Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe, Japan, ³Rheumaology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe, Japan
Background/Purpose: To identify a serum biomarker for prediction of the response to biologics (Bio) in patients with rheumatoid arthritis (RA), we performed serum metabolomics analysis…
Abstract Number: 3098 • 2015 ACR/ARHP Annual Meeting
Synovial Lymphocytic Aggregates Associate with Highly Active RA and Predict Erosive Disease at 12 Months: Results from the Pathobiology of Early Arthritis Cohort
Maria DiCicco¹, Frances Humby¹, Stephen Kelly², Rebecca Hands¹, nora ng³, Arti Mahto³, Illias Lazarou³, Vidalba Rocher¹, Lu Zou³, Michele Bombardieri⁴, Christopher Buckley⁵, A.H.M. van der Helm- van Mil⁶, Robert B.M. Landewé⁷, Désirée van der Heijde⁸, Iain B. McInnes⁹, Peter C. Taylor¹⁰ and Costantino Pitzalis¹¹, ¹Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom, ²William Harvey Research Institute, Centre for Experimental Medicine and Rheumatology, Queen Mary University of London, London, United Kingdom, ³William Harvey Research Institute, Centre for Experimental Medicine and Rheumatology, London, United Kingdom, ⁴Experimental Medicine and Rheumatology, Queen Mary University of London, London, United Kingdom, ⁵University of Birmingham, Rheumatology Research Group, Birmingham, United Kingdom, ⁶Leiden University Medical Center, Leiden, Netherlands, ⁷University of Amsterdam and Atrium Medical Center, Amsterdam, Netherlands, ⁸Rheumatology, Leiden University Medical Center, Leiden, Netherlands, ⁹Institute of Infection, Immunity and Inflammation, College of Medicine, Veterinary Medicine and Life Sciences, University of Glasgow, Glasgow, United Kingdom, ¹⁰Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford Botnar Research Centre, Oxford, United Kingdom, ¹¹Centre for Experimental Medicine & Rheumatology, Queen Mary's School of Medicine and Dentistry, London, United Kingdom
Background/Purpose: The inflammatory cell infiltrate in RA synovium has been recognised to organise into lymphocytic aggregates (Ags) with data to suggest that these structures are…
Abstract Number: 802 • 2015 ACR/ARHP Annual Meeting
Identification of Cyclin-Dependent Kinase 1 As a Novel Regulator for Controlling Type I Interferon Signaling in Systemic Lupus Erythematosus
Lingling Wu¹, Bo Qu¹, Yuting Qin¹ and Nan Shen^1,2, ¹Shanghai Institute of Rheumatology,Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China, ²The Center for Autoimmune Genomics and Etiology (CAGE),Cincinnati Children’s Hospital Medical Center,Cincinnati, Ohio, United States of America, Cincinnati, OH
Background/Purpose: Type I interferon (IFN) signaling has been a central pathogenic pathway in systemic lupus erythematosus (SLE). The application of specific inhibitors of IFN pathway has emerged…
Abstract Number: 3136 • 2015 ACR/ARHP Annual Meeting
Impact of Prokinetic Agents on Systemic Sclerosis-Associated Gastrointestinal Disease: A Systematic Review
Annaliese Tisseverasinghe¹, Ahmad Kadhim², Ambica Parmar², Louis Liu² and Sindhu R. Johnson¹, ¹Toronto Scleroderma Program, Division of Rheumatology, Toronto Western Hospital, Mount Sinai Hospital, Institue of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada, ²Division of Gastroenterology, Toronto Western Hospital, University of Toronto, Toronto, ON, Canada
Background/Purpose: More than 90% of patients with Systemic Sclerosis (SSc) have gastroinstestinal (GI) involvement, commonly dysmotility causing complications such as gastroesophageal reflux and constipation. Treatment…

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