Abstracts tagged "pathogenesis"

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…
Abstract Number: 961 • 2015 ACR/ARHP Annual Meeting
Altered Th Cell Plasticity Favors Th17 Cells in Rheumatoid Arthritis
Jan Leipe¹, Fausto Pirronello², Hendrik Schulze-Koops² and Alla Skapenko², ¹Division of Rheumatology, University of Munich, Munich, Germany, ²Division of Rheumatology and Clinical Immunology, University of Munich, Munich, Germany
Background/Purpose: Previously, T helper (Th) cell subsets have been regarded as irreversibly differentiated endpoints. However, evidence suggests that Th cell differentiation is a plastic process…
Abstract Number: 964 • 2015 ACR/ARHP Annual Meeting
Neutrophil Extracellular Traps Are Not Only Targets for ACPA-Positive IgG from Rheumatoid Arthritis Patients but Also Directly Trigger Pro- and Anti-Inflammatory Effects Partly Mediated By the C1q Complement Protein
Matthieu Ribon¹, Sarra Seninet¹, Katarzyna Matyja¹, Mireille Sebbag², Cyril Clavel², Julie Mussard¹, Guy Serre², Marie-Christophe Boissier³ and Patrice Decker¹, ¹Inserm UMR 1125, Li2P, University of Paris 13, Sorbonne Paris Cité, Bobigny, France, ²University of Toulouse, UMR 5165 CNRS-1056 Inserm, Toulouse, France, ³Rheumatology Department, Avicenne Hospital, AP-HP, Bobigny, France
Background/Purpose: Activated neutrophils (PMN) form neutrophil extracellular traps (NET). Those structures are expelled chromatin fibers composed of DNA and associated proteins. The process, NETosis, is…
Abstract Number: 1163 • 2015 ACR/ARHP Annual Meeting
Dynamic Regulation of Enhancers and Super-Enhancers in Rheumatoid Arthritis Synovial Finroblasts
Sung-Ho Park¹, Christopher Sohn¹, Konstantinos Loupasakis², Angela Lee³, Eugenia Giannopoulou¹, Lionel B. Ivashkiv³ and George D. Kalliolias¹, ¹Hospital for Special Surgery, New York, NY, ²Rheumatology, Hospital for Special Surgery Weill Cornell Medical College, New York, NY, ³Medicine, Hospital for Special Surgery, New York, NY
Background/Purpose: Enhancers are regulatory elements that modulate transcriptional rates of genes. Super-enhancers (SupE) are extremely large enhancers associated primarily with highly expressed genes that have…
Abstract Number: 1963 • 2014 ACR/ARHP Annual Meeting
Hierarchical Role of PI3K/Akt/mTOR Signaling Cascade on: Tissue Inflammation, Organization and Angiogenesis in Autoimmune Arthritis
Siba Raychaudhuri¹, Anupam Mitra², Ananya Datta Mitra³, Christine Abria⁴ and Smriti K. Raychaudhuri³, ¹Med/Rheumatology, Univ California Davis/VA Sac, Davis, CA, ²Dermatology, VA Sacramento Medical Center, Mather, CA, ³Rheumatology, VA Sacramento Medical Center, Mather, CA, ⁴Research, VA Sacramento Medical Center, Mather, CA
Background/Purpose: The PI3K/Akt/mTOR signaling proteins are pro-growth/pro-survival and thus likely to regulate inflammatory cascades in autoimmune diseases (1). The key pathologic outcome in psoriatic arthritis…
Abstract Number: 1740 • 2014 ACR/ARHP Annual Meeting
Predicting the Evolution of Inflammatory Arthritis in ACPA-Positive Individuals: Can T-Cell Subsets Model Help?
Laura Hunt¹, Agata Burska², Elizabeth M.A. Hensor¹, Jackie L. Nam¹, Frederique Ponchel¹ and Paul Emery¹, ¹NIHR-Leeds Musculoskeletal Biomedical Research Unit and Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, United Kingdom, ²NIHR-Leeds Musculoskeletal Biomedical Research Unit and Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds., Leeds, United Kingdom
Background/Purpose: ACPA+ individuals with non-specific musculoskeletal symptoms are at high risk of developing rheumatoid arthritis (RA). We previously demonstrated dys-regulation of T-cell subsets with loss…
Abstract Number: 1466 • 2014 ACR/ARHP Annual Meeting
Patients with Active Rheumatoid Arthritis Display an Expanded Population of GM-CSF Expressing Peripheral B Cells
Sofia Adamidi, Anastasia Makris, Christos Koutsianas, Christina Tsalapaki, Emilia Hadziyannis and Dimitrios Vassilopoulos, 2nd Department of Medicine and Laboratory of Clinical Immunology-Rheumatology, Hippokration General Hospital, University of Athens Medical School, Athens, Greece
Background/Purpose GM-CSF has been implicated in rheumatoid arthritis (RA) pathogenesis and is being investigated as a novel therapeutic target. B cells secreting GM-CSF have been…
Abstract Number: 1457 • 2014 ACR/ARHP Annual Meeting
Stem Cell Growth Factor Expression in Rheumatoid Arthritis
Youn Jung Woo¹, Young Ae Baik¹, Yong-Beom Park², Soo-Kon Lee³, William H. Robinson⁴ and Jason Jungsik Song³, ¹Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea, ²Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea, ³Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea, ⁴Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA
Background/Purpose: Stem cell growth factor (SCGF) is a member of the C-type lectin superfamily, encoded by gene CLEC11A. SCGF is not related to stem cell…
Abstract Number: 1434 • 2014 ACR/ARHP Annual Meeting
The Longitudinal Association Between Inflammation and Blood Pressure in Rheumatoid Arthritis
Chih-Chin Liu¹, Daniel H. Solomon², Rishi Desai³, Seoyoung C. Kim⁴ and Katherine Liao⁵, ¹Rheumatology & Immunology, Brigham & Women's Hospital, Boston, MA, ²Brigham and Women's Hospital, Boston, MA, ³PharmacoEpidemiology & PharmacoEconomics, Brigham and Women's Hospital, Boston, MA, ⁴Div. of Pharmacoepidemiology and Pharmacoeconomics, Div. of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Boston, MA, ⁵Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Boston, MA
Background/Purpose Inflammation is hypothesized to have direct effects on arterial endothelial and vasomotor function, functions which regulate blood pressure (BP). While inflammation has been implicated…
Abstract Number: 449 • 2014 ACR/ARHP Annual Meeting
Citrullinated-Vimentin-Specific Regulatory T-Cell Responses Associate with ACPA Positive Individuals with Non-Specific Musculoskeletal Symptoms
Aamir Aslam¹, Jackie L. Nam¹, Laura Hunt¹, Chadi Rakieh¹, Ann W. Morgan² and Paul Emery¹, ¹NIHR-Leeds Musculoskeletal Biomedical Research Unit and Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, United Kingdom, ²NIHR-Leeds Musculoskeletal Biomedical Research Unit, University of Leeds, Leeds, United Kingdom
Background/Purpose: The pathogenesis of RA can be conceptualised by sequential phases that precede the development of synovitis. Autoimmune antibody responses, including ACPA, can precede clinical…
Abstract Number: 433 • 2014 ACR/ARHP Annual Meeting
Bronchiectasis: A Model for Chronic Bacterial Infection Inducing Autoimmunity in Rheumatoid Arthritis
Anne-Marie Quirke¹, Elizabeth Perry², Alison Cartwright¹, Clive Kelly³, Anthony De Sozya^4,5, Paul Eggleton⁶, David Hutchinson² and Patrick Venables⁷, ¹Kennedy Institute, Nuffield Department of Orthopaedics, Rheumatology & Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom, ²Rheumatology, Royal Cornwall Hospital, Truro, United Kingdom, ³Rheumatology, Queen Elizabeth Hospital, Gateshead, United Kingdom, ⁴Institute for Cellular Medicine, Newcastle University, Newcastle, United Kingdom, ⁵Sir William Leech Centre, The Freeman Hospital, Newcastle, United Kingdom, ⁶Medical School, University of Exeter, Exeter, United Kingdom, ⁷Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom
Background/Purpose Anti-citrullinated peptide antibodies (ACPA) are associated with smoking in patients with rheumatoid arthritis (RA). Bronchiectasis (BR), which tends to occur in non-smokers, has been…
Abstract Number: 338 • 2014 ACR/ARHP Annual Meeting
Bombina Variegate peptide8/Prokineticin 2: A Novel Arthritis-Inducible Chemokine
Haruyasu Ito, Ken Yoshida, Kentaro Noda and Daitaro Kurosaka, Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
Background/Purpose Rheumatoid arthritis (RA) is a chronic inflammatory disorder characterized by the joint destruction. Chemokines play important roles as monocyte and neutrophil recruiters in RA.…

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