Abstracts tagged "Animal models"

Abstract Number: 52 • 2018 ACR/ARHP Annual Meeting
Interferon-Alpha Protects Against Pain and Joint Damages in Experimental Arthritis and Is Associated with Expansion of Highly Suppressive Regulatory T Lymphocytes in Protected Mice and in Tocilizumab-Treated Rheumatoid Arthritis Patients
Matthieu Ribon¹, Roxane Hervé², Delphine Lemeiter², Katarzyna Matyja¹, François Santinon¹, Darragh Duffy³, Ken Tsumiyama⁴, Shunichi Shiozawa⁵, Marie-Christophe Boissier⁶, Natacha Bessis² and Patrice Decker¹, ¹Inserm UMR 1125, Li2P, University of Paris 13, Sorbonne Paris Cité, Bobigny, France, ²Li2P, University of Paris 13, Sorbonne Paris Cité, Bobigny, France, ³Institut Pasteur, Paris, Paris, France, ⁴Department of Medicine, Rheumatic Diseases Unit, Kyushu University Beppu Hospital, Beppu, Japan, ⁵Institute for Rheumatic Diseases, Nagahama, Japan, ⁶Rheumatology Department, AP-HP, Avicenne Hospital, Bobigny, France
Background/Purpose: Type I interferons (IFN-I) can be both anti- and pro-inflammatory. Among them, IFN-α inhibits normal Th17 differentiation, whereas it is pathogenic in lupus. The…
Abstract Number: 1823 • 2018 ACR/ARHP Annual Meeting
Loss of Synovial Tissue Resident Macrophages Permits Monocyte to Macrophage Differentiation and Inflammation in Hupo Mice
Qi Quan Huang¹, Renee E. Doyle², Alexander Misharin³, Shang-Yang Chen⁴, Deborah R. Winter⁵ and Richard M. Pope², ¹Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, ²Medicine/Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, ³Medicine/pulmonary, Northwestern University Feinberg School of Medicine, Chicago, IL, ⁴Medicine/Rheumatology, Northwestern University Feinberg School of Medicine, chicago, IL, ⁵Department of Medicine Division of Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL
Background/Purpose: We established a mouse model (HUPO) by deletion of Flip in CD11c+ cells that spontaneously develops erosive inflammatory arthritis resembling rheumatoid arthritis (RA). Since…
Abstract Number: 54 • 2018 ACR/ARHP Annual Meeting
In a Macaque Model of RA By Immunization with Citrullinated Peptides, the Valine in the 11 Position of the DRB1 Molecule Has Greater Impacts on T-Cell Response to Citrullinated Peptides Than the 70-74 Position in the Shared Epitope
Samuel Bitoun¹, Pierre Roques², Roger Le Grand³ and Xavier Mariette⁴, ¹INSERM U1184, IMVA, Paris Sud University,LabEx LERMIT, Le Kremlin Bicêtre, France, ²Immunology of viral infections and autoimmune diseases, IDMIT Infrastructure CEA - Université Paris Sud - INSERM U1184, Fontenay-Aux-Roses,, France, ³Immunology of viral infections and autoimmune diseases, IDMIT Infrastructure CEA - Université Paris Sud - INSERM U1184, Fontenay-Aux-Roses, France, ⁴Rheumatology, Université Paris Sud, Le Kremlin Bicêtre, France
Background/Purpose: Among genetic risk factors of RA, HLA class II molecules confers the highest risk of ACPA positive RA. The shared epitope (SE) hypothesis that…
Abstract Number: 1825 • 2018 ACR/ARHP Annual Meeting
Rheumatoid Arthritis Associated Haploinsufficiency in PTPN2 Enhances Severity of IL-17 Mediated Autoimmune Arthritis
Mattias N. D. Svensson¹, Karen M. Doody², Shen Yang³, Dennis J. Wu⁴, Cristiano Sacchetti⁵, Isabelle Aubry⁶, Piotr Mydel⁷, Mitchell Kronenberg⁸, Michel L. Tremblay⁹ and Nunzio Bottini², ¹Department of Medicine, University of California San Diego, La Jolla, CA, ²Cellular Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, ³Medicine, University of California San Diego, La Jolla, CA, ⁴University of California San Diego, San Diego, CA, ⁵Rheumatology, University of California San Diego, La Jolla, CA, ⁶Biochemistry, McGill University, Montreal, QC, Canada, ⁷University of Bergen, Bergen, Norway, ⁸Developmental Immunology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, ⁹Biochemistry, McGill University, Montréal, QC, Canada
Background/Purpose: Genetic polymorphisms at the PTPN2 locus, which encodes the tyrosine phosphatase TC-PTP, cause reduced gene expression and are linked to rheumatoid arthritis (RA). PTPN2…
Abstract Number: 55 • 2018 ACR/ARHP Annual Meeting
Adipose Derived Stem Cell Suppressed Synovial Inflammation and Repaired Cartilage Destruction in Rheumatoid Arthritis Model Mice
Tadashi Okano¹, Kentaro Inui², Hideki Ueyama³, Kumi Orita³, Tatsuya Koike⁴ and Hiroaki Nakamura², ¹Orthopedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan, ²Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan, ³Osaka City University Graduate School of Medicine, Osaka, Japan, ⁴Center for Senile Degenerative Disorders, Osaka City University Graduate School of Medicine, Osaka, Japan
Background/Purpose: Adipose derived stem cell (ADSC) is one of the stem cells produced by adipose tissue which can be collected easily and in large quantities.…
Abstract Number: 1826 • 2018 ACR/ARHP Annual Meeting
From Cancer to Autoimmunity : A New Model of Rheumatoid Arthritis Emerging from a Constitutional Genetic Approach Used in Low Penetrance Cancers
Geraldine Falgarone^1,2, Morad El Bouchtaoui³, Marcio Do Cruzeiro⁴, Christophe Leboeuf^5,6,7, Irmine Loisel-Ferreira^5,6, Carèle Frédonie⁷, Chrystophe Ferreira⁸, Rachida Ait El Far⁵, Marc Espié⁹, Bruno Cassinat¹⁰, Jean-Jacques Kiladjian¹¹, Jean-Paul Feugeas^12,13, Anne Janin^5,6,14 and Guilhem Bousquet^2,5,15, ¹HUPSSD, Avicenne Hospital, Rheumatology, APHP, Bobigny, France, ²Paris 13 University, SMBH, Bobigny, France, ³INSERM UMR-S 1165, PARIS, France, ⁴Plateforme de Recombinaison Homologue, Institut Cochin, INSERM U1016, Paris, France, ⁵INSERM UMR-S 1165, Paris, France, ⁶Université Paris Diderot, Paris, France, ⁷INSERM U944, Paris, France, ⁸Plateforme ANIMA5, Université Paris Descartes, Paris, France, ⁹Centre des Maladies du Sein, APHP, Hôpital Saint-Louis, Paris, France, ¹⁰Laboratoire de BIologie Cellulaire, APHP, Hôpital Saint-Louis, Paris, France, ¹¹Centre d'Inverstigation Clinique, APHP, Hôpital Saint-Louis, Paris, France, ¹²INSERM U1137, Paris, France, ¹³Département de Biologie, Université Franche-Comté, Besançon, France, ¹⁴Service de Pathologie, APHP, Hôpital Saint-Louis, Paris, France, ¹⁵Service d'Oncologie médicale, APHP, Hôpital Avicenne, Bobigny, France
Background/Purpose: High-speed technologies for genome sequencing have completely changed the study of disease genetics, but with limited knowledge of the functional value of most genetic…
Abstract Number: 63 • 2018 ACR/ARHP Annual Meeting
TNF-α Blockade Incompletely Reverses Inflammatory Pulmonary Pathology in the TNF-Transgenic Mouse Model of Rheumatoid Arthritis
Emily Wu¹, Richard Bell², Edward Schwarz³ and Homaira Rahimi⁴, ¹Department of Immunology, Microbiology, and Virology, University of Rochester, Rochester, NY, ²Center for Musculoskeletal Research, University of Rochester, Rochester, NY, ³Orthopedeatrics, University of Rochester, Rochester, NY, ⁴Rheumatology, University of Rochester/Golisano Children's Hosp, Rochester, NY
Background/Purpose: Interstitial lung disease (ILD) is a significant contributor to rheumatoid arthritis (RA) mortality, yet its pathogenesis remains enigmatic. One theory posits that initial inflammatory…
Abstract Number: 1893 • 2018 ACR/ARHP Annual Meeting
Indoleamine-2,3-Dioxygenase in Murine and Human Systemic Lupus Erythematosus
Zev Sthoeger^1,2, Amir Sharabi³, Heidy zinger¹, ilan asher⁴ and edna mozes¹, ¹Department of Immunology, The Weizmann institute of Science, Rehovot, Israel, ²Department of Allergy and Clinical Immunology, Kaplan Medical Center,, Rehovot, Israel, ³Department of Rheumatology, Beth Israel Deaconess Medical Center, Boston, MA, ⁴Department of Allergy and Clinical Immunology, Kaplan Medical Center, Rehovot, Israel
Background/Purpose: Indoleamine-2,3-dioxygenase (IDO) is a tryptophan catabolizing enzyme which plays a role in immune regulation and in the pathogenesis of autoimmune disorders. Increased IDO activity…
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…

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