Abstracts tagged "Fibroblasts, Synovial"

Abstract Number: 1760 • ACR Convergence 2023
Methotrexate Augments the Release of Granulocyte-macrophage Colony-stimulating Factor from Activated Rheumatoid Arthritis Fibroblast-like Synoviocytes – Possible Consequences for Persistence of Joint Inflammation
Beatrice Bergström¹, Tilia Selldén¹, Miriam Bollmann², Mattias N.D Svensson¹ and Anna-Karin Hultgård Ekwall³, ¹University of Gothenburg, Gothenburg, Sweden, ²Department of Rheumatology and Inflammation research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden, ³University of Gothenburg, Kullavik, Sweden
Background/Purpose: Activated fibroblast-like synoviocytes (FLS) are important mediators of synovitis and structural damage in rheumatoid arthritis (RA)[1]. Granulocyte-macrophage colony-stimulating factor (GM-CSF, encoded by the CSF2…
Abstract Number: 2506 • ACR Convergence 2023
Role of TGF-β Activated Kinase 1 in Cytokine-Driven Juvenile Idiopathic Arthritis Synovial Fibroblasts Activation
Meena Afroze Shanta¹, Anil Singh², Paul Panipinto³ and Salahuddin Ahmed², ¹College of Pharmacy and Pharmaceutical Science, Washington State University, Spokane, WA, ²Washington State university, Spokane, WA, ³Washington State University College of Pharmaceutical Science and Molecular Medicine, Spokane, WA
Background/Purpose: Chronic synovitis is a debilitating manifestation of juvenile idiopathic arthritis (JIA). Synovial fibroblast is a major preparator of inflammatory arthritis and has not been…
Abstract Number: 0793 • ACR Convergence 2023
The Dual Specificity Phosphatase 6 (DUSP6) Regulates Arthritis Severity and IL10 Production
Teresina Laragione, Carolyn Harris, Natasha Rice and Percio Gulko, Icahn school of Medicine at Mount Sinai, New York, NY
Background/Purpose: We have previously identified the Huntingtin-interacting protein-1 (HIP1) as a new gene implicated in the regulation of the rheumatoid arthritis (RA) fibroblast-like synoviocyte (FLS)…
Abstract Number: 1767 • ACR Convergence 2023
TNF-α Utilizes the TWEAK/Fn-14 Axis in Human Rheumatoid Arthritis Synovial Fibroblasts to Induce Inflammation
Farheen Sultan Shaikh¹, Anil Singh¹, Paul Panipinto² and Salahuddin Ahmed¹, ¹Washington State University, Spokane, WA, ²Washington State University College of Pharmaceutical Science and Molecular Medicine, Spokane, WA
Background/Purpose: Tumor necrosis factor-alpha (TNF)-α is a proinflammatory cytokine in rheumatoid arthritis that transduces intracellular signal transduction pathways through specific receptors, TNF-R1, and TNF-R2. The…
Abstract Number: 2507 • ACR Convergence 2023
ZCCHC6 Modulates the Global Phosphorylation Landscape in TNF-a-induced Rheumatoid Arthritis Synovial Fibroblasts
Anil Singh, Farheen Sultan Shaikh and Salahuddin Ahmed, Washington State university, Spokane, WA
Background/Purpose: ZCCHC6, also known as TUT7 or TENT2, plays a crucial role in RNA processing and metabolism through its uridylyl transferase function. This function involves…
Abstract Number: 081 • 2023 Pediatric Rheumatology Symposium
Predicting Extension in Juvenile Idiopathic Arthritis
Megan Simonds¹, Kathleen Sullivan² and AnneMarie Brescia¹, ¹Nemours Children's Health, Wilmington, DE, ²Children's Hospital of Philadelphia, Philadelphia, PA
Background/Purpose: Juvenile idiopathic arthritis (JIA) is the most common rheumatic disease of childhood and carries a risk of permanent joint damage and disability [1]. In…
Abstract Number: 0499 • ACR Convergence 2022
Drivers of Heterogeneity in Synovial Fibroblasts in Rheumatoid Arthritis
Melanie Smith¹, Vianne Gao², Edward DiCarlo¹, Susan Goodman¹, Thomas Norman², Laura Donlin¹, Christina Leslie² and Alexander Rudensky², ¹Hospital for Special Surgery, New York, NY, ²Memorial Sloan Kettering Cancer Center, New York, NY
Background/Purpose: Rheumatoid arthritis (RA) is characterized by hyperplasia of both the synovial lining, which forms the synovial fluid interface, as well as the synovial sublining,…
Abstract Number: 0623 • ACR Convergence 2022
Rheumatoid Synovial Fibroblasts Display Imprinted Memory of Their Synovial Endotype Which Can Be Plastically Modulated by B-cells Crosstalk
Edoardo Prediletto¹, Cankut Cubuk², Elena Pontarini³, Felice Rivellese², Alessandra Nerviani², Davide Lucchesi³, Mattia Caliste¹, Elisa Corsiero¹, Manzoor Ahmed³, rebecca hands³, Myles Lewis², Costantino Pitzalis² and Michele Bombardieri⁴, ¹Wlliam Harvey Research Institute Queen Mary University on London, London, United Kingdom, ²Queen Mary University of London, London, United Kingdom, ³William Harvey Research Institute, London, United Kingdom, ⁴Experimental Medicine and Rheumatology, William Harvey Research Institute, Queen Mary University, London, United Kingdom
Background/Purpose: Despite advances in the treatment of Rheumatoid Arthritis (RA), synthetics and biologicals drugs are ineffective in ~40% of patients. The origin of this refractoriness…
Abstract Number: 0500 • ACR Convergence 2022
T Cell and Macrophage Synergy Drive Inflammatory Synovial Fibroblasts in Rheumatoid but Not Psoriatic Arthritis
Achilleas Floudas¹, conor Smith², Orla Tynan³, Nuno Neto⁴, Krishna Vinod⁵, Sarah Wade⁶, Megan Hanlon⁷, Clare Cunningham⁴, Viviana Marzaioli⁸, Mary Canavan⁹, Jean Fletcher³, Ronan Mullan¹⁰, Suzanne Cole¹¹, Ling-Yang Hao¹², Michael Monaghan⁴, Sunil Nagpal¹³, Douglas Veale¹⁴ and Ursula Fearon⁴, ¹Molecular Rheumatology Trinity Biomedical Sciences Institute, Dublin, Ireland, ²bTrinity College Dublin, Dublin, Ireland, ³Trinity Biomedical Sciences Institute, Dublin, Ireland, ⁴Trinity College Dublin, Dublin, Ireland, ⁵Janssen, Spring House, PA, ⁶Trinity Biomedical Sciences Institute, Wexford, Ireland, ⁷Molecular Rheumatology, Dublin, Ireland, ⁸Trinity College Dublin and University College Dublin, Dublin, Ireland, ⁹Trinity College, Dublin, Ireland, ¹⁰Tallaght University Hospital, Dublin, Ireland, ¹¹Rheumatic Disease Associates, Warminster, PA, ¹²Janssen Research and Development, LLC, Spring House, PA, ¹³Janssen Research, Collegeville, PA, ¹⁴St. Vincent's University Hospital, Blackrock, Dublin, Ireland
Background/Purpose: Rheumatoid (RA) and psoriatic arthritis (PsA) are common autoimmune diseases of unknown aetiology characterised by complex synovial pathology with a detrimental effect on the…
Abstract Number: 0626 • ACR Convergence 2022
Elucidating the Expression and Role of Proprotein Convertase Subtilisin/Kexin Type 9 (PCSK9) in Human Rheumatoid Arthritis Synovial Fibroblasts and a Rat Adjuvant-induced Arthritis Model
Meena Afroze Shanta¹, Farheen Sultan Shaikh², Bhanupriya Madarampalli³ and Salahuddin Ahmed², ¹College of Pharmacy and Pharmaceutical Science, Washington State University, Spokane, WA, ²Washington State University, Spokane, WA, ³University of Washington, Bellevue, WA
Background/Purpose: Proprotein convertase subtilisin/Kexin type-9 (PCSK9) is the most recognized serine protease for its pathological role in cardiovascular diseases, however, its role in inflammatory diseases,…
Abstract Number: 0558 • ACR Convergence 2022
Molecular Interplay Between Mammalian Target of Rapamycin (mTOR) and the YAP Pathway Mediates Rheumatoid Arthritis Synovial Fibroblast Activation
Brianne Barker¹, Megan Hanlon², Siobhan Wade¹, Douglas Veale³, Ursula Fearon¹ and Mary Canavan⁴, ¹Trinity College Dublin, Dublin, Ireland, ²Molecular Rheumatology, Dublin, Ireland, ³St. Vincent's University Hospital, Blackrock, Dublin, Ireland, ⁴Trinity College, Dublin, Ireland
Background/Purpose: mTOR is a metabolic master regulator of both innate and adaptive immunity, however its exact role in synovial fibroblasts is unknown. RA synovial fibroblasts…
Abstract Number: 0627 • ACR Convergence 2022
Spatial Transcriptomic Analysis Reveals Vascular Zonation of Myofibroblasts in Rheumatoid Arthritis Synovium
Kartik Bhamidipati¹, Roopa Madhu¹, Sonia Presti¹, Youngmi Kim², Ye Cui², Fan Zhang³, Anna Jonsson¹, Aparna Nathan¹, Nghia Millard¹, Deepak Rao¹, Laura Donlin⁴, Jennifer Anolik⁵, Soumya Raychaudhuri¹, Michael Brenner⁶, Ilya Korsunsky¹ and Kevin Wei⁷, ¹Brigham and Women's Hospital, Boston, MA, ²Nanostring Technologies Inc., Seattle, WA, ³University of Colorado, Aurora, CO, ⁴Hospital for Special Surgery, New York, NY, ⁵University of Rochester Medical Center, Rochester, NY, ⁶Brigham and Women's Hospital, Harvard Medical School, Boston, MA, ⁷Brigham and Women's Hospital and Harvard Medical School, Boston, MA
Background/Purpose: Many rheumatoid arthritis (RA) patients do not achieve sustained remission despite multiple lines of therapy. Recent studies have linked the expansion of synovial fibroblasts…
Abstract Number: 0578 • ACR Convergence 2022
Interleukin-6 Trans-Signaling Induces Synovial Fibroblast Invasiveness by Utilizing Ets2 Protein
Anil Singh, Paul Panipinto, Farheen Sultan Shaikh and Salahuddin Ahmed, Washington State university, Spokane, WA
Background/Purpose: Rheumatoid arthritis (RA) is an autoimmune disease with a complex interplay of synovial cells and soluble factors that create the signatures of chronic inflammation…
Abstract Number: 1094 • ACR Convergence 2022
Mechanical Loading-induced BHLHE40 Promotes Inflammatory Arthritis
Eric Gracey¹, Carolien Vlieghe², Isabelle Cambre¹, Elisabeth Gilis¹, Flore Stappers³, Guillaume Planckaert¹, Rik Lories⁴, Aline Bozec⁵ and Dirk Elewaut⁶, ¹Ghent University, Gent, Belgium, ²VIB-UGent Center for Inflammation Research, Ghent University, Belgium, Gent, Belgium, ³VIB-UGent Center for Inflammation Research, Ghent University, Ghent, Belgium, ⁴KU Leuven, Leuven, Belgium, ⁵Universitätsklinikum Erlangen, Erlangen, Germany, ⁶Department of Rheumatology, Ghent University Hospital, Belgium, VIB-UGent Center for Inflammation Research, Ghent University, Heusden, Belgium
Background/Purpose: Force induced microdamage to joint tissue is hypothesized to trigger inflammatory events in the joint leading to arthritis. Patients with inflammatory arthritis, such as…
Abstract Number: 0579 • ACR Convergence 2022
Characterization of Terminal Uridyl Transferase Function in Response to Tumor Necrosis Factor-α in Rheumatoid Arthritis Synovial Fibroblasts
Anil Singh, Farheen Sultan Shaikh and Salahuddin Ahmed, Washington State university, Spokane, WA
Background/Purpose: Terminal Uridyl Transferase (TUT) genes TUT4 and TUT7 mediate uridylation of mRNA and microRNAs to maintain cellular homeostasis via RNA turnover. Changes in the…

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