Abstracts tagged "Mouse Models, RA"

Abstract Number: 1720 • ACR Convergence 2023
Successful Treatment of Rheumatoid Arthritis in Mice Using Cenerimod, a Selective Modulator of the S1P1 Receptor, Demonstrates the Potential Benefits of S1P1 Receptor Immunomodulation for Rheumatic Diseases
Thomas Hoyler, Maxime Bulle, Conrad Wyss, Jeremy Scherer, Sylvie Froidevaux and Marianne Martinic, Idorsia Pharmaceuticals Ltd., Allschwil, Switzerland
Background/Purpose: Discovery of the essential role of S1P signaling in regulating lymphocyte trafficking led to the development of S1P receptor modulators for the treatment of…
Abstract Number: 1722 • ACR Convergence 2023
Fate-mapping of Synovial Monocytes and Macrophages
Yidan Wang¹, Carla Cuda¹, Deborah Winter² and Harris Perlman¹, ¹Northwestern University, Chicago, IL, ²Northwestern University, Skokie, IL
Background/Purpose: Synovial monocytes and macrophages are heterogenous populations. These populations play diverse roles in the development of arthritis in humans and mice. In recent years,…
Abstract Number: 1726 • ACR Convergence 2023
Therapeutic Effect of ICAM-1 Mimic on Experimental Axial Spondyloarthritis
Melissa Lim¹, Shaghayegh Foroozan², Zoya Qaiyum³, Michael Tang¹, Enoch Yau⁴ and Robert Inman¹, ¹University Health Network, Toronto, ON, Canada, ²University Health Network/University of Toronto, Toronto, ON, Canada, ³Krembil Research Institute, Toronto, ON, Canada, ⁴University of Toronto, Toronto, ON, Canada
Background/Purpose: Axial Spondyloarthritis (AxSpA) is a chronic inflammatory arthritis primarily affecting the axial skeleton and commonly coexists with gut and skin inflammation. Currently, patients with…
Abstract Number: 1728 • ACR Convergence 2023
A Novel Animal Model for Investigating the Effect of HLA-DRB1 on Atherosclerosis
Garth Blackler, James Akingbasote, Patti Kiser, Christopher Howlett, Ewa Cairns and Lillian Barra, Western University, London, ON, Canada
Background/Purpose: HLA-DRB1 alleles are associated with various autoimmune and inflammatory conditions, including rheumatoid arthritis, polymyalgia rheumatica, giant cell arteritis, systemic lupus erythematosus, diabetes and atherosclerotic…
Abstract Number: 1731 • ACR Convergence 2023
A Competitive Inhibitor of MOART Showed Potent Therapeutic Effects in a Mouse Model of Collagen-induced Arthritis
Sujin Park¹, DongWoo Kang², Haein An¹, Eunji Hong¹, Kwiyeom Yoon², MinWoo Kim², Hwajung Kim² and Seong Jin Kim², ¹GILO Institute, GILO Foundation, Seoul, South Korea, ²Medpacto Inc., Seoul, South Korea
Background/Purpose: Despite tumor necrosis factor (TNF) inhibitors and Jak kinase inhibitors (JKI) have shown a significant advance in the treatment of rheumatoid arthritis (RA) however,…
Abstract Number: 2136 • ACR Convergence 2023
Arthritogenic Cells Found in the Peripheral Blood of Rheumatoid Arthritis Patients Transfer the Disease to NSG-DR4 Mice
Janine Rupp¹, Johannes Fessler², Silvia Hayer³, Barbara Dreo⁴, Angelika Lackner², Patrizia Fasching², Wolfgang Helmberg², Peter Schlenke², Jens Thiel⁵, Guenter Steiner⁶, Cornelia M. Weyand⁷ and Martin Stradner², ¹Medical University Graz, Rochester, MN, ²Medical University of Graz, Graz, Austria, ³Medical University of VIenna, Vienna, Austria, ⁴Division of Rheumatology and Immunology, Medical University of Graz, Graz, Austria, ⁵University Hospital Freiburg, Freiburg, Germany, ⁶Division of Rheumatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria, ⁷Mayo Clinic School of Medicine and Stanford University, Rochester, MN
Background/Purpose: T cells play an important role in the genesis of rheumatoid arthritis (RA). HLA class II genes, such as HLA-DRB1*0401 (HLA-DR4), confer the strongest…
Abstract Number: 2434 • ACR Convergence 2023
Acetylated Bacterial Proteins as Potent Antigens Inducing an Anti-modified Protein Antibody Response
Mikhail Volkov, Arieke Kampstra, Karin van Schie, Joanneke Kwekkeboom, Arnoud de Ru, Peter van Veelen, Thomas Huizinga, René Toes and Diane van der Woude, Leiden University Medical Center, Leiden, Netherlands
Background/Purpose: Gut-residing bacteria, such as E.coli, can acetylate their proteome under conditions of amine starvation. It is postulated that the (gut) microbiome is involved in…
Abstract Number: 0001 • ACR Convergence 2023
Loss of the Complement Regulator CD55 Alters Marginal Zone B Cell Homeostasis
Iris Lee¹, Sonam Verma², Ivana Ling², Christine Pham³ and Peggy Kendall², ¹Washington University in St. Louis, St. Louis, MO, ²Washington University, Saint Louis, MO, ³Washington University, St. Louis, MO
Background/Purpose: Complement and B cells are implicated in the pathophysiology of rheumatoid arthritis, an autoimmune disease characterized by synovial inflammation. Loss of complement regulator CD55…
Abstract Number: 0045 • ACR Convergence 2022
Rheumatoid Arthritis Patient-derived Anti-citrullinated Protein Antibodies (ACPAs) Ameliorate Joint Inflammation in Early Collagen-antibody Induced Arthritis (CAIA)
Alejandro Gomez¹, Camille Brewer¹, Jae-Seung Moon², Suman Acharya¹, Tobias V. Lanz¹, Qian Wang¹, Gundula Min-Oo³, Anita Niedziela-Majka³ and William Robinson⁴, ¹Stanford University, Stanford, CA, ²Stanford University, Palo Alto, CA, ³Gilead Sciences, Foster City, CA, ⁴Stanford University School of Medicine, Palo Alto, CA
Background/Purpose: ACPAs are present in two-thirds of patients with rheumatoid arthritis (RA) and are associated with higher risks for severe bone erosions. The pathogenic role…
Abstract Number: 0046 • ACR Convergence 2022
Baricitinib Ameliorates Residual Neuropathic Pain in Collagen Antibody-Induced Arthritis Mice by Suppressing Inflammation of the Dorsal Root Ganglion
Kenta Makabe¹, Yasunori Omata¹, Hiroyuki Okada¹, Ryota Chijimatsu², Asuka Terashima¹, Fumiko Yano¹, Sakae Tanaka¹ and Taku Saito¹, ¹Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan, ²Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Okayama, Japan
Background/Purpose: In clinical trials for the treatment of rheumatoid arthritis, baricitinib was shown to significantly improve pain scores compared with anti-TNF inhibitors. This result suggests…
Abstract Number: 0047 • ACR Convergence 2022
Cenerimod, a Novel Selective S1P1 Receptor Modulator, Prevents or Attenuates Joint Inflammation in Several Preclinical Models of Rheumatoid Arthritis
Thomas Hoyler, Jeremy Scherer, Maxime Bulle, Conrad Wyss, Sylvie Froidevaux and Marianne Martinic, Idorsia Pharmaceuticals Ltd., Allschwil, Switzerland
Background/Purpose: Targeting the sphingosine-1-phosphate (S1P) pathway has become an attractive target for therapeutic intervention in autoimmune diseases due to its selective impact on the migration…
Abstract Number: 0052 • ACR Convergence 2022
Elucidating Androgen Effects on Focal Erosions in TNF-Induced Inflammatory Arthritis
Kiana Chen¹, H. Mark Kenney², Edward Schwarz¹ and Homaira Rahimi³, ¹University of Rochester Medical Center, Rochester, NY, ²University of Rochester Medical Center, Henrietta, NY, ³University of Rochester, Rochester, NY
Background/Purpose: Rheumatoid arthritis (RA) is characterized by chronic joint disease and is female predominant. The TNF-transgenic (TNF-Tg) mouse model of RA develops inflammatory-erosive arthritis and…
Abstract Number: 0054 • ACR Convergence 2022
MDSCs in Inflammatory Joints of SKG Mice Suppress T Cells and Differentiate into Osteoclasts
Yoshikazu Fujikawa¹, Sho Sendo², Takumi Nagamoto³, Yuzuru Yamamoto¹, Takaichi Okano⁴, Keisuke Nishimura³, Yo Ueda⁵ and Jun Saegusa⁵, ¹Hyogo Prefectural Harima-Himeji General Medical Center, Himeji, Japan, ²University California, San Diego (UCSD), La Jolla, CA, ³Kobe University, Kobe, Japan, ⁴Kobe University Hospital, Kobe, Japan, ⁵Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe, Japan
Background/Purpose: Myeloid-derived suppressor cells (MDSCs) are heterogeneous immature myeloid cells with suppressive functions. It is known that MDSCs are expanded in inflammatory sites after migrating…
Abstract Number: 0598 • ACR Convergence 2022
An Arthritogenic Strain of Subdoligranulum Specifically Detectable in the Feces of Individuals At-risk for and with Rheumatoid Arthritis Is Bound by ACPA and Stimulates Th17 Cell Activation in Those with Rheumatoid Arthritis
Meagan Chriswell¹, Cliff Rims², Megan Maerz², Alex Hsu³, Jennifer Seifert⁴, Marie Feser⁵, Michelle Bloom³, Elizabeth Bemis⁶, Kristen Demoruelle⁵, Kevin D Deane⁷, William Robinson⁸, Eddie James⁹, Jane Buckner⁹, V. Michael Holers¹⁰ and Kristi Kuhn⁵, ¹UC Denver SOM, Aurora, CO, ²Benaroya Research Institute, Seattle, WA, ³Stanford University, Stanford, CA, ⁴University of Colorado, Littleton, CO, ⁵University of Colorado Anschutz Medical Campus, Aurora, CO, ⁶Colorado School of Public Health Anschutz Medical Campus, Aurora, CO, ⁷University of Colorado Denver Anschutz Medical Campus, Denver, CO, ⁸Stanford University School of Medicine, Palo Alto, CA, ⁹Benaroya Research Institute at Virginia Mason, Seattle, WA, ¹⁰University of Colorado, Denver, CO
Background/Purpose: We previously demonstrated that intestinal bacteria within the families Lachnospiraceae and Ruminococcaceae are preferentially targeted by ACPA-reactive plasmablast-derived monoclonal antibodies (PB-mAbs) from dual IgA/IgG…
Abstract Number: 0628 • ACR Convergence 2022
A Positive-feedback Model for the Contribution of Virus-Specific T Cells to the Development of Rheumatoid Arthritis
Hendrik Nel¹, Pascale Wehr², Christopher Andoniou³, Iona Schuster³, Stephanie Gras⁴, Helen McGuire⁵, Helen Weedon⁶, Annabelle Small⁷, Katie Lowe⁷, Mariapia Degli-Esposti³, Mihir Wechalekar⁸ and Ranjeny Thomas⁹, ¹University of Queensland, Brisbane, Australia, Woolloongabba, Australia, ²University of Queensland Diamantina Institute, Brisbane, Australia, ³Infection and Immunity Program and Department of Microbiology, Biomedicine Discovery Institute, Monash, Australia, ⁴Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Australia, ⁵The University of Sydney, Charles Perkins Centre, Camperdown, Australia, ⁶Flinders University of South Australia, Bedford Park, Australia, ⁷Flinders University, Adelaide, Australia, ⁸Flinders Medical Centre, Bedford Park, Australia, ⁹University of Queensland, Brisbane, Australia
Background/Purpose: Rheumatoid Arthritis (RA) is associated with specific HLA-DR genotypes with an emphasis on the role of CD4+ effector-memory T cells (Tem) in disease pathogenesis.…

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