Abstracts tagged "Animal models"

Abstract Number: 144 • 2018 ACR/ARHP Annual Meeting
Small Molecule Inhibitor of Bcl-6 Reduces the Tfh Population in Peripheral Blood, Splenic Germinal Center and Ankle Joints in a Collagen-Induced Arthritis Mouse Model of RA
Nitasha Bhatia¹, Sedrick Bradley², Cara McLeod¹, Gbemi Olayemi¹, Robert Quinet¹, William E. Davis³, Jerald Zakem⁴ and Xin Zhang¹, ¹Ochsner Medical Center, New Orleans, LA, ²Ochsner Clinic Foundation, New Orleans, LA, ³University of Queensland School of Medicine, Brisbane, Australia, ⁴Ochsner Medical Center, New Orleans, LA
Background/Purpose: Rheumatoid arthritis (RA) is a common autoimmune disease characterized by chronic joint inflammation, synovial hyperplasia and progressive destruction of cartilage and bone. T follicular…
Abstract Number: 1952 • 2018 ACR/ARHP Annual Meeting
Experimental Tendinopathy Treatment with SM04755, a Topical Small Molecule Inhibitor of the Wnt Pathway
Vishal Deshmukh, Timothy Seo and Yusuf Yazici, Samumed, LLC, San Diego, CA
Background/Purpose: Tendinopathy is an inflammatory and degenerative disorder caused by injuries and overuse. The Wnt pathway is upregulated in chronic tendinopathy and involved in inflammation,…
Abstract Number: 500 • 2018 ACR/ARHP Annual Meeting
Impact of Inflammation and Biologic Treatments on Generation and Progression to Advanced Calcified Coronary Plaques in Rheumatoid Arthritis
George Karpouzas¹, Sarah Ormseth², Elizabeth Hernandez² and Matthew Budoff³, ¹Division of Rheumatology, Harbor-UCLA Medical Center, Torrance, CA, ²Rheumatology, Harbor-UCLA Medical Center, Torrance, CA, ³Cardiology, Harbor-UCLA Medical Center, Torrance, CA
Background/Purpose: In early atherogenesis inflammation drives and co-localizes with intimal calcification. In chronic, advanced plaques inflammation and calcification are inversely correlated and spatially distinct; advanced…
Abstract Number: 1994 • 2018 ACR/ARHP Annual Meeting
Osteoarthritis Severity Is Reduced By Intra-Articular Administration of Hydrogen Sulfide
Elena F. Burguera^1,2, Angela Vela-Anero³, Carlos Vaamonde-Garcia³, Tamara Hermida-Gómez^1,2, Purificacion Filgueira-Fernandez^1,2, Lucía Gato-Calvo², Rosa Meijide-Failde⁴ and Francisco J Blanco⁵, ¹CIBER-BBN, Madrid, Spain, ²Unidad de Medicina Regenerativa, Grupo de Investigación en Reumatología, Agrupación Estratégica CICA-INIBIC, Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade de A Coruña (UDC), A Coruña, Spain, ³Department of Physiotherapy, Medicine and Biological sciences, Tissue Engineering and Regenerative Medicine group (University of A Coruña), A Coruña, Spain, ⁴Department of Physiotherapy, Medicine and Biological Sciences, Tissue Engineering and Regenerative Medicine group (University of A Coruña), A Coruña, Spain, ⁵Grupo de Investigación en Reumatología, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. Universidade da Coruña (UDC), A Coruña, Spain
Background/Purpose: Hydrogen sulphide (H2S) is recognized as a therapeutic target in osteoarthritis (OA). Exogenous supplementation with synthetic salts in in vitro models of OA has…
Abstract Number: 840 • 2018 ACR/ARHP Annual Meeting
The CCL21/CCR7 Axis Drives Vascular, Inflammatory and Destructive Remodeling in Rheumatoid Arthritis
Katrien Van Raemdonck^1,2, Karol Palasiewicz^1,2, Sadiq Umar^1,2 and Shiva Shahrara², ¹Jesse Brown VA Medical Center, Chicago, IL, ²Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL
Background/Purpose: The synovial tissue of rheumatoid arthritis (RA) patients exhibits abundant expression of CCL21, produced excessively by RA fibroblasts and macrophages. While CCR7 mediates CCL21-driven…
Abstract Number: 2059 • 2018 ACR/ARHP Annual Meeting
Inhibition of the Transcription Factor That Drives IL-17 Expression Suppresses Inflammation, Joint Damage, and New Bone Formation in Experimental Spondyloarthritis in HLA-B27 Transgenic Rats
Joel Taurog¹, Jiankun Zhu¹, Michael Kort², Shaughn Bryant³, Lucy Phillips³ and Wendy Waegell³, ¹Dept Int Med-Rheum Dis Div, University of Texas Southwestern Medical Center, Dallas, TX, ²AbbVie, Inc., North Chicago, IL, ³AbbVie, Inc., Worcester, MA
Background/Purpose: The IL-17 axis has been identified as a central pathway in SpA pathogenesis. Targeting this axis in AS and PsA significantly suppresses inflammation and…
Abstract Number: 845 • 2018 ACR/ARHP Annual Meeting
New Insights in Lupus Dermatitis: Differential Regulation and Roles of Tissue-Resident Dendritic Cell Subsets in the Pathogenesis of Autoimmune Skin Inflammation
Ram R. Singh, Miguel-Angel Gutierrez, Peter Kim, Darshan Randhawa, Rachael Philips, Jennifer K. King and Anna Eriksson, Autoimmunity and Tolerance Laboratory, Department of Medicine/Rheumatology, UCLA, Los Angeles, CA
Background/Purpose: Acquired or self antigens in tissues are taken to lymphoid organs to elicit protective immunity or tolerance, respectively. This is accomplished by dendritic cells…
Abstract Number: 2063 • 2018 ACR/ARHP Annual Meeting
Early Injection of TNF Inhibitor Prevents Spinal Inflammation and Deformity in Curdlan-Induced Spondyloarthritis Animal Model
Doo-Ho Lim¹, Eun-Ju Lee², Seokchan Hong², Yong-Gil Kim², Chang Keun Lee² and Bin Yoo², ¹Division of Rheumatology, Department of Internal Medicine, University of Ulsan College of Medicine, Ulsan University Hospital, Ulsan, Korea, Republic of (South), ²Division of Rheumatology, Department of Internal Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea, Republic of (South)
Background/Purpose: TNF inhibitors are highly efficient in controlling disease activity and improving functional outcomes as well as quality of life in most ankylosing spondylitis patients;…
Abstract Number: 850 • 2018 ACR/ARHP Annual Meeting
Long Term Efficacy of Cartilage Repair Induced By scSOX9 in Situ with Bone Marrow-Derived Mesenchymal Stem Cells
Xiaowei Zhang^1,2, Shili Wu³, Yong Zhu³ and Cong-Qiu Chu^4,5, ¹Oregon Health & Science University, Portland, OR, ²VA Portland Health Care System, Portland, OR, ³VivoScript, Inc, Costa Mesa, CA, ⁴Rheumatology, Oregon Health & Science University, Portland, OR, ⁵Rheumatology, VA Portland Health Care System, Portland, OR
Background/Purpose: Microfracture induces fibrocartilage or fibro-hyaline cartilage both are biomechanically inferior to hyaline cartilage. We reported previously that a super positively charged SOX9 (scSOX9) improved…
Abstract Number: 2072 • 2018 ACR/ARHP Annual Meeting
Beneficial Effect of Combination Therapy of Etanercept with Non-Steroidal Anti-Inflammatory Drugs Compared to Etanercept Monotherapy in a Spondyloarthritis Animal Model
Seung-Cheol Shim¹, Ji-Young Kim², Seung Taek Song³, Jin-Sun Choi², Chan Keol Park⁴ and In-Seol Yoo¹, ¹Division of Rheumatology, Department of Internal Medicine, Daejeon Rheumatoid & Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, Korea, Republic of (South), ²Division of Rheumatology, Daejeon Rheumatoid & Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, Korea, Republic of (South), ³Department of Rheumatology, Cheongju St. Mary's Hospital, Cheongju, Korea, Republic of (South), ⁴Internal medicine, Daejeon Rheumatoid & Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, Korea, Republic of (South)
Background/Purpose: Non-steroidal anti-inflammatory drugs (NSAIDs) are recommended as first-line drug treatment of spondyloarthritis (SpA) which is frequently associated with inflammatory bowel disease. Biologic disease modifying…
Abstract Number: 1007 • 2018 ACR/ARHP Annual Meeting
Macrophage Mediators of Autoimmune Valvular Carditis and Fibrosis
Lee Meier¹, Mayra Gonzalez-Torres², Jennifer L. Auger², Aubyn Marath³ and Bryce A. Binstadt², ¹Department of Pediatrics and Center for Immunology, University of Minnesota, Minneapols, MN, ²Department of Pediatrics and Center for Immunology, University of Minnesota, Minneapolis, MN, ³CardioStart International, Tampa, FL
Background/Purpose: K/B.g7 TCR transgenic mice spontaneously develop both autoimmune arthritis and valvular carditis. We utilize this model to define mediators of rheumatic disease-associated cardiovascular inflammation…
Abstract Number: 2077 • 2018 ACR/ARHP Annual Meeting
Pathological Osteogenesis and Inflammation in Experimental Spondyloarthritis Are Associated with Aberrant Type H Blood Vessels and Development of High Endothelial Venules Accompanied By Ectopic Lymphoid Structures in Bone Marrow
Merlijn Kaaij¹, Jan Piet van Hamburg², George Kollias³, Dominique Baeten¹, Leonie van Duivenvoorde¹ and Sander W. Tas², ¹Department of Clinical Immunology & Rheumatology and Department of Experimental Immunology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands, ²Amsterdam Rheumatology & immunology Center | Department of Experimental Immunology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands, ³Department of Physiology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
Background/Purpose: Spondyloarthritis (SpA) is characterized by pathological osteogenesis, inflammation and extensive angiogenesis in inflamed tissues. TNF plays a central role in SpA pathology and transgenic…
Abstract Number: 1021 • 2018 ACR/ARHP Annual Meeting
Impact of TLR7 Ligation in RA Pathology
Sadiq Umar^1,2, Katrien Van Raemdonck^1,2, Karol Palasiewicz^1,2 and Shiva Shahrara¹, ¹Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, ²Jesse Brown VA Medical Center, Chicago, IL
Background/Purpose: Expression of Toll-like receptor 7 (TLR-7) is highly elevated in rheumatoid arthritis (RA) and osteoarthritis (OA) compared to normal (NL) synovial tissue lining and…
Abstract Number: 2082 • 2018 ACR/ARHP Annual Meeting
ERAP1 Deficiency Partially Relieves HLA-B27-Induced ER Stress and IL-23 Expression, but Does Not Restore Dendritic Cell Function in Experimental Spondyloarthritis
Tri Tran¹, Vance Holt², Tejpal Gill¹, Joshua R. Bennett², Joel Taurog³ and Robert Colbert⁴, ¹National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, ²National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, ³Dept Int Med-Rheum Dis Div, University of Texas Southwestern Medical Center, Dallas, TX, ⁴National Institute of Arthritis and Musculuskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
Background/Purpose: Preliminary results suggest that endoplasmic reticulum (ER) aminopeptidase 1 (ERAP1) deficiency partially protects HLA-B27/human b2m transgenic (B27-Tg) rats from spondyloarthritis (SpA) as evidenced by…
Abstract Number: 1033 • 2018 ACR/ARHP Annual Meeting
Comparison of Oral Administration of Diacerein, Intra-Articular Injection of Diacerein Solution, and Intra-Articular Injection of Diacerein-Loaded Nanoparticle in Osteoarthritis Rat Model
Jae Hyun Jung^1,2, Sung Jae Choi^1,3, Gwan Gyu Song^1,2, Sung Eun Kim⁴ and Hak-Jun Kim^5,6, ¹Internal Medicine, Korea University College of Medicine, Seoul, Korea, Republic of (South), ²Internal Medicine, Korea University Guro Hospital, Seoul, Korea, Republic of (South), ³Internal Medicine, Korea University Ansan Hospital, Ansan, Korea, Republic of (South), ⁴Orthopedic Surgery, Korea University Guro Hospitial, Seoul, Korea, Republic of (South), ⁵Orthopedic Surgery, Korea Univertisy College of Medicine, Seoul, Korea, Republic of (South), ⁶Orthopedic Surgery, Korea University Guro Hospital, Seoul, Korea, Republic of (South)
Background/Purpose: Osteoarthritis (OA) treatment is typically administered to control symptoms. Diacerein (DIA) reduces interleukin (IL)-1 receptor on chondrocytes and prevents structural degradation of joint tissue.…

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