Abstracts tagged "Synovitis"

Abstract Number: LB23 • ACR Convergence 2025
A Phase 1 Study of Autologous CAR-Treg Cells in Refractory Rheumatoid Arthritis: Interim Report of Safety and Efficacy
Minna Kohler¹, Sally Arai², Fawad Aslam³, Gregory Challener⁴, Matthew Frigault⁴, Melissa Griffith⁵, Tamiko Katsumoto⁶, Elena Massarotti⁷, Larry Moreland⁸, Allison Rosenthal⁹, Jeffrey Sparks⁷, Janeth Yinh⁴, Sarah Baxter¹⁰, Ari Bitton¹¹, Jason Dubovsky¹², Victor Yuan¹³, Mindy Jensen¹⁴, Andrew Clauw¹⁵, Gabrielle Furman⁴, Rita Gyurko⁷, Megan Hall⁹, Anna McIntyre⁴, Jennifer Seifert¹⁶, Emma Stainton², Michelle Blake¹⁰, Sabrina Fox-Bosetti¹³, Herve Lebrec¹³, Amanda Pace¹⁰, Yuanyuan Xiao¹⁷, Mei-Lun Wang¹⁸, Joe Arron¹³ and Jeffrey Bluestone¹⁹, ¹Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, ²Stanford, Palo Alto, California, ³Mayo Clinic, Arizona, Scottsdale, Arizona, ⁴Massachusetts General Hospital, Boston, Massachusetts, ⁵University of Colorado Anschutz Medical Campus, Aurora, Colorado, ⁶Stanford University, Millbrae, California, ⁷Brigham and Women's Hospital, Boston, Massachusetts, ⁸University of Colorado, Denver, Colorado, ⁹Mayo Clinic, Phoenix, Arizona, ¹⁰Sonoma Biotherapeutics, Seattle, Washington, ¹¹Sonoma Biotherapeutics, San Diego, California, ¹²Sonoma Biotherapeutics, Thousand Oaks, California, ¹³Sonoma Biotherapeutics, South San Francisco, California, ¹⁴Sonoma Bio, Seattle, Washington, ¹⁵University of Colorado, Aurora, Colorado, ¹⁶University of Colorado and Oklahoma Medical Research Foundation, Aurora, Colorado, ¹⁷Sonoma Biotherapeutics, Los Altos, California, ¹⁸Sonoma Biotherapeutics, San Francisco, California, ¹⁹Sonoma Biotherapeutics Inc, South San Francisco, California
Background/Purpose: Regulatory T cells (Tregs) modulate inflammation, maintain self-tolerance, promote tissue repair, and hold promise as a versatile therapeutic. Autologous polyclonal Tregs have a favorable…
Abstract Number: 1734 • ACR Convergence 2025
Intra‑articular Liraglutide Halts Osteoarthritis Progression, Surpassing Dexamethasone in Synovial and Cartilage Protection
Coralie Meurot¹, Celine Martin¹, Margot Vieubled², Indira Toillon³, Claire Deldycke¹, Valentine Cheron¹, Soline Trombetta¹, William Sibran¹, Revital Rattenbach¹ and Francis BERENBAUM⁴, ¹⁴P Pharma, Lille, France, ²⁴P Pharma, Lille, ³Sorbonne University, Paris, France, ⁴Sorbonne University/Inserm/AP-HP/⁴Moving Biotech, Paris, France
Background/Purpose: Osteoarthritis (OA) is an age-related joint disease that cause chronic pain and reduced mobility. Current treatments mainly relieve pain and inflammation, often with corticosteroid…
Abstract Number: 0323 • ACR Convergence 2025
Automated Effusion-Synovitis Volume is Prognostic and Responsive to Knee Osteoarthritis Progression: Data from the Osteoarthritis Initiative
Jeffrey Driban¹, Kate Lapane², Shao-Hsien Liu², Jonggyu Baek², Grace Lo³, Matthew Harkey⁴, Charles Eaton⁵, James Mackay⁶, Timothy McAlington⁷, Mohammad Chowdhury⁸, Zhen Cao⁹, Juan Shan¹⁰ and Ming Zhang¹¹, ¹University of Massachusetts Chan Medical School, Marlborough, NH, ²UMass Chan Medical School, Worcester, MA, ³Baylor College of Medicine / MEDVAMC, Houston, TX, ⁴Michigan State University, East Lansing, MI, ⁵Brown University, Pawtucket, RI, ⁶University of Cambridge; Norwich Medical School, San Diego, CA, ⁷UMass Chan School of Medicine, Arlington, MA, ⁸Pace University, New York City, NY, ⁹Boston University, Boston, MA, ¹⁰Pace University, New York, NY, ¹¹Boston University, Westford, MA
Background/Purpose: Semi-quantitative and semi-automated quantitative measurements of effusion-synovitis (ES) are prognostic for knee OA progression. Changes in these metrics relate to changes in knee pain.…
Abstract Number: 1673 • ACR Convergence 2025
Is Transient Synovitis of the Hip preclinical Juvenile SpA ? A follow-up study
Anirudh Bandu¹, Michal Cidon² and Michael Weisman³, ¹CHLA, Los Angeles, NJ, ²Children's Hospital of Los Angeles, Los Angeles, CA, ³Cedars-Sinai Medical Center, LOS ANGELES, CA
Background/Purpose: Transient synovitis (TS) of the hip is considered a common, self-limited condition in the pediatric population. However, recurrences can occur; these may signal an…
Abstract Number: 0092 • ACR Convergence 2025
SynovAI: A Revolutionary AI Framework for Enhanced Detection and Differentiation of Rheumatoid Arthritis, Osteoarthritis, and Spondyloarthritis via Advanced Ultrasound Imaging
Mojtaba S. Fazli¹, Mariani Diaz Deluna², Suzanne Tamang² and Robert Fairchild², ¹Stanford University, San Francisco, CA, ²Stanford University, Stanford, CA
Background/Purpose: Rheumatology musculoskeletal ultrasound (MSKUS) is a powerful technique to identify and differentiate arthritidies joint pathology, yet MSKUS is highly dependent on user experience. Techniques…
Abstract Number: 2286 • ACR Convergence 2025
Association of Semaglutide Prescription with Improved Joint Outcomes in Rheumatoid Arthritis Patients
Faissal Stipho¹, Yazin Hindosh², Jonathan Sayegh², Akram Hindosh², Bassam Mitri² and Issa Batarseh¹, ¹Department of Internal Medicine, Banner University Medical Center / University of Arizona, Tucson, Arizona, Tucson, AZ, ²University of Arizona College of Medicine Tucson, Tucson, AZ
Background/Purpose: Rheumatoid Arthritis (RA) is an autoimmune disorder that results in immune dysfunction and swelling of major joints, leading to discomfort, pain, stiffness, and loss…
Abstract Number: 1654 • ACR Convergence 2025
A Dual Inhibitor of TAK1 and MAP4K2, NG25, Suppresses Cytokine-Driven Inflammation in Juvenile Idiopathic Arthritis Synovial Fibroblasts
Meena Afroze Shanta¹ and Salahuddin Ahmed², ¹College of Pharmacy and Pharmaceutical Science, Washington State University, Spokane, WA, ²Washington State University, Spokane, WA
Background/Purpose: Chronic synovitis is a hallmark of juvenile idiopathic arthritis (JIA), and synovial fibroblasts are major perpetrators of inflammation and tissue destruction. Thus, we tested…
Abstract Number: 0084 • ACR Convergence 2025
Regulation of the same chemokine gene transcription by different histone lysine methyltransferases, MLL1 and MLL3, in rheumatoid arthritis synovial fibroblasts
Keita Okamoto¹, Yasuto Araki², Yoshimi Aizaki², Hiroshi Kajiyama³, Kazuhiro Yokota², Yu Funakubo², Yuho Kadono⁴, Yuji Akiyama⁵ and Toshihide Mimura⁶, ¹Department of Rheumatology and Applied Immunology, Faculty of Medicine, Saitama Medical University, Moroyama-chou, Iruma-gun, Saitama, Japan, ²Department of Rheumatology and Applied Immunology, Faculty of Medicine, Saitama Medical University, Saitama, Japan, ³Department of Rheumatology and Applied Immunology, Faculty of Medicine, Saitama Medical University, Iruma-gun, Saitama, Japan, ⁴Department of Orthopaedic Surgery, Saitama Medical University, Moroyama-machi, Iruma-gun, Saitama, Japan, ⁵Department of Rheumatology and Applied Immunology, Faculty of Medicine, Saitama Medical University, Moroyama-machi, Iruma-gun, Saitama, Japan, ⁶Saitama Seikeikai Hospital, Higashimatsuyama, Saitama, Japan
Background/Purpose: Rheumatoid arthritis synovial fibroblasts (RASFs) produce various matrix metalloproteinases (MMPs), cytokines, and chemokines. Histone lysine methylation has been shown to play an important role…
Abstract Number: 2285 • ACR Convergence 2025
Synovium-on-a-chip – Development of a Humanized Rheumatoid Arthritis Model that Mimics Disease and Patient Biological Heterogeneity
Theresa Wampler Muskardin¹, Ruiqi Chen², Yeji Lee³, Azka Ali³, Andrra Nimoni³, Christele Felix³, Hattie Heiland³, Romy Kallas³, Daniel Ramirez⁴, David Mayman³, Timothy Niewold⁵ and Weiqiang Chen⁶, ¹Hospital for Special Surgery and Weill Cornell Medicine, New York, NY, ²New York University - Tandon School of Engineering, New York, NY, ³Hospital for Special Surgery, New York, NY, ⁴Hospital for Special Surgery, Weill Cornell Medicine, New York, NY, ⁵Hospital for Special Surgery, New York, New York, ⁶New York University, Tandon School of Engineering, New York, NY
Background/Purpose: In rheumatoid arthritis (RA), reasons for treatment resistance and alternate strategies that would be more effective in treatment-resistant patients remain unknown. Accurate methodology to…
Abstract Number: 1133 • ACR Convergence 2025
A Proteomic Analysis Of Subclinical Synovial Inflammation Associated With Monosodium Urate Crystal Deposition
Mariano Andrés¹, María-Luisa Peral-Garrido², Samanta Ortuño³, Rocío Caño³, Silvia Gómez-Sabater³, Alejandra Bermúdez⁴, Teresa Lozano⁵, Miguel Perdiguero⁵, elena Caro-Martínez⁶, Ruth Sánchez-Ortiga⁵, Carolina Ruiz-García⁷, Eliseo Pascual⁸ and Rubén Francés⁸, ¹Dr Balmis Alicante General University Hospital-ISABIAL, Alicante, Spain, ²Vinalopó University Hospital, Novelda, Spain, ³Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante, Spain, ⁴Rheumatology Department, Dr. Balmis General University Hospital, Alicante, Spain., Alicante, Spain, ⁵Dr Balmis General University Hospital, Alicante, Spain, ⁶HACLE San Vicente Hospital, San Vicente del Raspeig, Spain, ⁷Campoamor Health Center, Alicante, Spain, ⁸Miguel Hernandez University of Elche, Alicante, Spain
Background/Purpose: Persistent subclinical inflammation from monosodium urate (MSU) crystals is present in gout and asymptomatic hyperuricemia (AH). The underlying mechanism is poorly understood. This study…
Abstract Number: 0080 • ACR Convergence 2025
The Role of DICAM in Modulating Macrophage Differentiation and Inflammatory Responses via αvβ3 Integrin Signaling in Rheumatoid Arthritis
Hanna Lee¹, Youn-Kwan Jung², Sang-il Lee³, Yun-Hong Cheon⁴ and Hyunjin Lim⁴, ¹Division of Rheumatology, Department of Internal Medicine, Gyeongsang National University Hospital, Changwon, Changwon-si, Kyongsang-namdo, Republic of Korea, ²Institute of Medical Science, Gyeongsang National University, Jinju, Jinju, Kyongsang-namdo, Republic of Korea, ³Department of Internal Medicine and Institute of Medical Science, College of Medicine, Gyeongsang National University and Hospital, Jinju, Republic of Korea, ⁴Division of Rheumatology, Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Jinju, Kyongsang-namdo, Republic of Korea
Background/Purpose: Rheumatoid arthritis (RA) is a chronic autoimmune disorder characterized by persistent joint inflammation, cartilage destruction, and bone erosion. Among the various immune cells involved…
Abstract Number: 1965 • ACR Convergence 2025
Two-Year Outcomes of Microwave Ablation for Recurrent Monoarthritis with Synovial Hypertrophy Resistant to Medical Treatment: Expanded Cohort and Long-Term Follow-Up Results
Rabia Deniz¹, Tevfik Güzelbey², İlhan Nahit Mutlu², Kübra Kalkan³, Özgür Kılıçkesmez² and Cemal Bes⁴, ¹University of Health Sciences Basaksehir Çam and Sakura City Hospital, Istanbul, Turkey, ²University of Health Sciences Başakşehir Çam and Sakura City Hospital, Department of Radiology, Istanbul, Turkey, ³University of Health Sciences Başakşehir Çam and Sakura City Hospital, Department of Rheumatology, Istanbul, Turkey, ⁴University of Health Sciences, Basaksehir Çam and Sakura City Hospital, Istanbul, Turkey
Background/Purpose: Recurrent monoarthritis (RM) is a significant therapeutic challenge in rheumatology, often persisting despite NSAIDs, corticosteroids (CS), DMARDs, and biologic therapies. Local interventions like intra-articular…
Abstract Number: 0932 • ACR Convergence 2025
Compartment-specific NK-cell phenotypes reveal distinct maturation and activation states in inflammatory arthritis
Franca Sophie Deicher¹, Tarik Exner², Maren Claus³, Schayan Yousefian⁴, Lea Rodon⁵, sophie leonhardt⁶, Jörg Distler⁷, Carsten Watzl³, Hanns-Martin Lorenz⁸, Simon Haas⁴, Daniel Hübschmann⁹ and Wolfgang Merkt¹⁰, ¹Uniklinik Düsseldorf, Düsseldorf, Germany, ²University Hospital Heidelberg, Heidelberg, Germany, ³IfADo, Leibniz Institute Dortmund, Dortmund, Germany, ⁴Charite, Berlin, Berlin, Germany, ⁵University Hospital Heidelberg, Heidelberg, Hungary, ⁶Heidelberg University, Heidelberg, Germany, ⁷University Hospital Duesseldorf and HHU, Duesseldorf, Germany, ⁸Universitétsklinikum Heidelberg, Heidelberg, Germany, ⁹Heidelberg University, Berlin, Germany, ¹⁰University Hospital Düsseldorf, Düsseldorf, Germany
Background/Purpose: Synovial natural killer (NK) cells contribute to inflammation in arthritis by secreting cytokines and modulating synovial fibroblast activation. The aim of this study is…
Abstract Number: 0061 • ACR Convergence 2025
IL-22 Contributes to Autoantibody-induced Arthritis Via Modulation of Inflammatory Cytokine and Chemokine Expression in the Inflamed Synovium of a Murine Model
Shinjiro Kaieda¹, Suzuna Sugi¹, Takuma Koga², Takashi Kinoshita¹ and Tomoaki Hoshino¹, ¹Kurume university School of Medicine, Kurume, Japan, ²Kurume Universty School of Medicine, Kurume, Japan
Background/Purpose: IL-22 is a key cytokine involved in modulating tissue responses during inflammation and is markedly upregulated in inflammatory diseases, such as psoriasis, inflammatory bowel…
Abstract Number: 1961 • ACR Convergence 2025
Clinical Utility and Patient Experience of Ultrasound-Guided Synovial Biopsy in Refractory Arthritis: A Case Series from a Secondary Care Center
Maria Beatriz Paredes Romero¹, Elisabet Castañeda Estévez², Martina Steiner³, Marco Algarra- San José³, Ana Valeria Acosta³, Tatiana Cobo-Ibáñez⁴, Isabel De la Cámara³, Ana Victoria Esteban Vázquez⁵, Patricia Richi³, Maria Liz Romero-Bogado³, Laura Trives⁵, Cristina Vergara-Dangond⁴, Jorge palomar-Ramos³ and Santiago Muñoz⁵, ¹Infanta Sofía University Hospital, Madrid, Spain, ²Hospital Universitario Infanta Sofía, Madrid, Spain, ³Infanta Sofía University Hospital, Madrid, Spain, ⁴Hospital Universitario Infanta Sofía;Universidad Europea de Madrid. Faculty of Medicine, Health and Sports. Department of Medicine; FIIB HUIS-HUHEN, San Sebastian de Los Reyes, Madrid, Spain, ⁵Hospital Universitario Infanta Sofía;Universidad Europea de Madrid. Faculty of Medicine, Health and Sports. Department of Medicine; FIIB HUIS-HUHEN, Madrid, Spain
Background/Purpose: Diagnosing arthritis remains challenging in a subset of patients despite advances in imaging, serological markers, and clinical scoring systems. Ultrasound-guided synovial biopsy (USG-SB) stands…

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