Abstracts tagged "Mouse Models, RA"

Abstract Number: 0870 • ACR Convergence 2025
Same Model, Different Results: Vendor and Microbiome Influence Reproducibility in Collagen Induced Arthritis
Brenda Seymour¹, Brendan Allen² and Kristine Kuhn³, ¹University of Colorado School of Medicine, Denver, CO, ²University of Colorado School of Medicine, Aurora, CO, ³²⁰²² - ²⁰²³ / Adult/ University of Colorado, Aurora, CO
Background/Purpose: Although collagen-induced arthritis (CIA) in mice is a useful tool for studying inflammatory arthritis, it is a highly variable model with inconsistent disease severity…
Abstract Number: 0109 • ACR Convergence 2025
Application of Psoriatic Arthritis Mouse Models in Preclinical Pharmacodynamic Evaluation
Juan Liang¹ and Yinlian Zhang², ¹Gempharmatech, Nanjing, Jiangsu, China, ²GemPharmatech, Nanjing, China (People's Republic)
Background/Purpose: Psoriatic arthritis (PsA), a complex inflammatory disorder that affects up to 30% of psoriasis patients. It is marked by clinical heterogeneity and a lack…
Abstract Number: 0075 • ACR Convergence 2025
Impact of CXCL2 and IL-11 from Rheumatoid Arthritis Synovial Fibroblasts on Angiogenesis and Endothelial Cell Network Formation
Elena Neumann¹, Frederik Loetfering², Paula Welbrink³, Corinna Heck³, Daria Kuersammer³, Klaus Frommer¹, Stefan Rehart⁴ and Ulf Müller-Ladner¹, ¹Dept. of Rheumatology and Clinical Immunology, Campus Kerckhoff, Bad Nauheim, Justus-Liebig-University, Germany, Bad Nauheim, Hessen, Germany, ²Justus Liebig University Giessen, Campus Kerckhoff, Bad Nauheim, ³Justus-Liebig-Universität Gießen, Campus Kerckhoff, Bad Nauheim, Germany, ⁴Agaplesion Markus Hospital, Frankfurt, Hessen, Germany
Background/Purpose: In rheumatoid arthritis (RA), hypervascularization contributes to synovial inflammation. RA synovial fibroblasts (RASF) contribute to cartilage and bone erosion but also promote angiogenesis. Activated…
Abstract Number: 0066 • ACR Convergence 2025
RA-required synovial tissue-resident monocyte lineage cells are comprised of three distinct subpopulations.
Yidan Wang¹, Samuel Dowling², Jessica Maciuch², Vanessa Manada De Lobos², Meghan Mayer², Kainat Mian¹, Tyler Therron³, Hadijat Makinde¹, Carla Marie Cuda¹, Deborah Rachelle Winter⁴ and Harris R Perlman¹, ¹Northwestern University, Chicago, IL, ²Northwestern University, Chicago, ³Northwestern Feinberg School of Medicine, Chicago, IL, ⁴Northwestern University, Skokie, IL
Background/Purpose: Tissue-resident monocyte-lineage cell (TRMC) are an extravascular population distinct from circulating monocytes and synovial macrophages and are critical for the development of inflammatory arthritis.…
Abstract Number: 0065 • ACR Convergence 2025
Expression and Co-Localization of Malondialdehyde-Acetaldehyde and Citrullinated Proteins in Myocardial Tissues Precedes the Development of Cardiac Fibrosis in Collagen-Induced Arthritis
Wenxian Zhou¹, Hannah Johnson², Michael Duryee², Ali Namvaran³, Julian Garcia², Carlos Hunter², Tate Johnson², Daniel Anderson⁴, Kishore Bidasee², Geoffrey Thiele² and Ted Mikuls², ¹University of Nebraska Medical Center, Bellevue, NE, ²University of Nebraska Medical Center, Omaha, NE, ³University of Nebraska Medical Center, Omaha, ^40587964, Durham, NC
Background/Purpose: Patients with rheumatoid arthritis (RA) experience increased morbidity and mortality due to heart failure with preserved ejection fraction (HFpEF), a condition characterized by diastolic…
Abstract Number: 0063 • ACR Convergence 2025
Effect of alpha-ketoglutarate on Synovial Fibroblasts-Mediated Inflammation in Arthritis
Surabhi Gautam, Vinay Devulapalli, Akash Sathiyamurthi, Jayla Whittaker and Pallavi Bhattaram, Emory University, Atlanta, GA
Background/Purpose: Rheumatoid arthritis (RA) and related autoimmune joint disease patients exhibit cyclic episodes of resolution and exacerbation of joint inflammation, referred to as flares. Fibroblast-like…
Abstract Number: 0062 • ACR Convergence 2025
Neddylation as a Therapeutic Target in Autoimmune Arthritis: Evidence from SKG Mice
Sho Sendo¹, Alfonso Del Peral Fanjul², Kazuma Nishisaka², Hirotaka Yamada¹, Takaichi Okano¹, Keisuke Nishimura¹, Yo Ueda¹ and Jun Saegusa², ¹Kobe University Hospital, Kobe, Japan, ²Kobe University, Kobe, Japan
Background/Purpose: Neddylation, NEDD8 conjugating process, is a post-translational modification that plays a crucial role in regulating ubiquitination by targeting cullin (CUL)-ring E3 ubiquitin ligases. Our…
Abstract Number: 0059 • ACR Convergence 2025
Formyl Peptide Receptor 1 (FPR1) Influences Arthritis Severity in a Sex- and Compartment-Specific Manner
Ryan D. Stultz¹, Payton Hermanson², Noelle Mullin³, Simeon Ramsey³ and Christian Lood², ¹University of Washington, Division of Rheumatology, Seattle, WA, ²University of Washington, Seattle, WA, ³Pfizer Inc., Cambridge, MA
Background/Purpose: Rheumatoid arthritis (RA) is a chronic, systemic inflammatory disease that disproportionately affects females over males (3:1). Although sex-based immune differences have been documented, particularly…
Abstract Number: 0056 • ACR Convergence 2025
Repository Corticotropin Injection Reduces Inflammation and Bone Turnover Markers in the Murine CIA Model
Maripat Corr¹, Grace Hsueh², Aaron place², David Lucas² and NANCY LANE³, ¹ucsd, San Diego, CA, ²ANI Pharmaceuticals, Inc., Baudette, MN, ³University of California at Davis, School of Medicine, Sacramento, CA
Background/Purpose: Melanocortin receptor agonists, such as adrenocorticotropic hormone (ACTH), are anti-inflammatory with pleotropic functions. We aimed to evaluate the effects of a repository corticotropin injection…
Abstract Number: 0055 • ACR Convergence 2025
TCR Signaling Thresholds Govern Anergy and Tolerance in ZAP70 Hypomorphic Models of Autoimmune Arthritis
Yuka Nakao, Astha Patel, Letitia Yang, Steven yu, Arthur Weiss and Judith Ashouri, University of California, San Francisco, San Francisco, CA
Background/Purpose: T cell receptor (TCR) signaling strength is a key determinant of immune tolerance and autoimmunity, yet the threshold needed to prevent pathogenic self-reactivity remains…
Abstract Number: 0054 • ACR Convergence 2025
Microbial Cues Promote Arthritis and Alter T Cell Selection in SKG Mice
Astha Patel¹, Steven yu¹, Yuka Nakao¹, Mohana Mukherjee¹, Diego Orellana², Jose Scher³, Peter Turnbaugh¹, Renuka Nayak⁴ and Judith Ashouri¹, ¹University of California, San Francisco, San Francisco, CA, ²University of California San Francisco, San Francisco, CA, ³New York University School of Medicine, New York, NY, ⁴University of California, San Francisco (UCSF), San Francisco, CA
Background/Purpose: Dysbiosis of the gut microbiota has been linked to rheumatoid arthritis (RA), but it remains unclear whether these microbial alterations are causal or secondary…
Abstract Number: 0050 • ACR Convergence 2025
TL1A expression is upregulated in rheumatic diseases and anti-TL1A antibody reduces disease symptoms and pathological changes in rat collagen-induced arthritis
Preeyam Patel¹, Matthew Siegel², Emily Lewis³, David Giles³, Justin LaFountaine³, Joshua Friedman³ and Andy Spencer³, ¹Spyre Therapeutics, Waltham, ²Spyre Therapeutics, Menlo Park, CA, ³Spyre Therapeutics, Waltham, MA
Background/Purpose: The development of disease-modifying anti-rheumatic drugs (DMARDs) has reduced disease activity in patients living with rheumatic diseases. Despite this, there is continued unmet need…
Abstract Number: 1724 • ACR Convergence 2025
Pathogenic role of Mucosal-Associated Invariant T cells in Rheumatoid Arthritis.
Manon LESTURGIE-TALAREK¹, Virginie Gonzalez², Anne Cauvet², Lucie Beaudoin³, Fiona Oudart⁴, Adrien Schvartz⁵, Francesco Carbone⁵, Mickael Menager⁵, Noémie Sénot³, Francoise Tilotta⁶, Yannick Allanore⁷, Agnes Lehuen⁸ and Jérôme AVOUAC⁹, ¹Paris University, Paris, France, ²INSERMU¹⁰¹⁶, Paris, France, ³Institut Cochin, Paris, ⁴APHP - Cochin hospital, Paris, France, ⁵Institut Imagine, Paris, ⁶Université Paris Cité, Montrouge, France, ⁷Université Paris Cité, Paris, France, ⁸Hôpital Cochin, Paris, France, ⁹Rheumatology department, Cochin hospital, Paris, France
Background/Purpose: Mucosal-associated invariant T (MAIT) cells are innate-like lymphocytes that produce cytokines and cytotoxic molecules. Reduced frequencies and altered phenotypes of MAIT cells have been…
Abstract Number: 0930 • ACR Convergence 2025
Potent and Selective Oral IRF5 Degrader, KT-579, Blocks Pro-Inflammatory Cytokines and Reduces Joint Swelling in a Mouse Model of Rheumatoid Arthritis
Ryan Camire¹, Yi Zhang², Virginia Massa², Jordan Leedberg², Erik Corcoran², Emily Lurier², Chris Carroll², Chris Ho², Dapeng Chen², Bradley Enerson², Revonda Mehovic², Ziyan Zhao², Lincoln Howarth², Susanne Breitkopf², Sarah Martinez², Melissa Ford², Xue Fei², Murugappan Sathappa², Juliet Williams³, Matthew Weiss³, Arsalan Shabbir³, Nello Mainolfi⁴ and Veronica Campbell², ¹Kymera Therapeutics, Watertown, MA ⁰²⁴⁷², MA, ²Kymera Therapeutics, Watertown, MA ⁰²⁴⁷², ³Kymera Therapeutics, Watertown, ⁴Kymera Therapeutics, Watertown, MA
Background/Purpose: IRF5, an undrugged transcription factor, is an autoimmune susceptibility gene that has been linked to RA and other autoimmune diseases including SLE, Sjögren’s, and…
Abstract Number: 0927 • ACR Convergence 2024
Synovial Macrophage Heterogeneity and Dynamics in Steady Stateand Rheumatoid Arthritis Mouse Model Time Course
Jessica Maciuch¹, Yidan Wang², Tyler Therron³, Harris Perlman¹ and Deborah Winter⁴, ¹Northwestern University, Chicago, IL, ²Northwestern University, Hanover Park, IL, ³Northwestern University, Chicago, ⁴Northwestern University, Skokie, IL
Background/Purpose: Macrophages are vital contributors to both pro-inflammatory signaling and tissue repair processes involved in the pathogenesis and remission of Rheumatoid Arthritis (RA). Recent research…

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