Abstracts tagged "Fibroblasts, Synovial"

Abstract Number: 0527 • ACR Convergence 2021
Role of Terminal Uridylyl Transferase 7 in TNF-α-Induced Inflammation in Rheumatoid Arthritis Synovial Fibroblasts In Vitro
Anil singh, farheen Shaikh and Salah-uddin Ahmed, Washington State University, Spokane, WA
Background/Purpose: Terminal uridylyl transferase 7 (TUT7), also known as Zcchc6, is a zinc finger domain-containing protein responsible for terminal uridylation of miRNA, implicated in pre-miRNA…
Abstract Number: 0940 • ACR Convergence 2021
Overactivation of the Kinase IKK2 Causes a Hand Osteoarthritis-Like Phenotype in Mice
Sergio Ramirez-Perez, kyle Jones, Umesh Gangishetti and Pallavi Bhattaram, Emory University School of Medicine, Atlanta, GA
Background/Purpose: Hand osteoarthritis (OA) presents the highest prevalence among rheumatic diseases. Synovitis is a defining feature in hand OA that has been associated with radiographic…
Abstract Number: 1003 • ACR Convergence 2021
Significant Enrichment of Pathogenic CD206+CD163+ Macrophages in Rheumatoid Arthritis Synovial Tissue with Distinct Transcriptional Signatures
Megan Hanlon¹, Mary Canavan², Nuno Neto³, Qingxuan Song⁴, Phil Gallagher⁵, Ronan Mullan⁶, Conor Hurson⁷, Barry Moran³, Michael Monaghan³, Sunil Nagpal⁸, Douglas Veale⁹ and Ursula Fearon³, ¹Molecular Rheumatology, Dublin, Ireland, ²Trinity College, Santry, Ireland, ³Trinity College Dublin, Dublin, Ireland, ⁴Janssen Research & Development LLC, Spring House, PA, ⁵St Vincent's Hospital, Dublin, Ireland, ⁶Tallaght University Hospital, Dublin, Ireland, ⁷St Vincents University Hospital, Dublin, Ireland, ⁸Janssen Research, Collegeville, PA, ⁹University College Dublin, Dublin, Ireland
Background/Purpose: Synovial tissue macrophages are an exquisitely plastic pool of innate cells that play a key role in RA disease progression. However, the precise nature,…
Abstract Number: 0011 • ACR Convergence 2021
Differential Inflammation-mediated Function of Prokineticin 2 in the Synovial Fibroblasts of Patients with Rheumatoid Arthritis Compared to Osteoarthritis
Kentaro Noda, Bianca Dufner and Rainer Straub, Laboratory of Experimental Rheumatology and Neuroendocrine Immunology, Department of Internal Medicine I, University Hospital Regensburg, Regensburg, Germany
Background/Purpose: Prokineticin 2 (PK2) is a secreted protein involved in several pathological and physiological processes, including the regulation of inflammation, sickness behaviors, and the circadian…
Abstract Number: 1006 • ACR Convergence 2021
MAA Modified and/or Citrullinated Proteins Stimulate Macrophages and Human Fibroblast-Like Synoviocytes to Increase the Secretion/Expression of Fractalkine Ligand (CX3CL1) and Fractalkine Receptor (CX3CR1)
Nozima Aripova, Michael Duryee, Peter Maloley, Bryant England, James O'Dell, Ted Mikuls and Geoffrey Thiele, University of Nebraska Medical Center, Omaha, NE
Background/Purpose: In rheumatoid arthritis (RA) synovium, activated synovial fibroblasts and macrophages release inflammatory mediators that affect surrounding cells and accelerate disease progression. One such chemokine…
Abstract Number: 0013 • ACR Convergence 2021
Cyclin Dependent Kinase 4 and 6 Determine the Cytokine Responsiveness by Stabilizing JUN in Rheumatoid Arthritis Synovial Fibroblasts
Tadashi Hosoya¹, Tetsuya Saito², Hiroyuki Baba², Nao Tanaka², Seiji Noda², Yoji Komiya², Yasuhiro tagawa², Akio Yamamoto² and Shinsuke Yasuda², ¹Tokyo Medical and Dental University(TMDU), Tokyo, Japan, ²Tokyo Medical and Dental University (TMDU), Tokyo, Japan
Background/Purpose: Although current inflammation-targeted therapy improved the outcome of patients with rheumatoid arthritis (RA), the achievement of complete disease remission was still challenging. Since synovial…
Abstract Number: 1012 • ACR Convergence 2021
Altered T Cell Responses, and Synergistic Regulation of Synovial Fibroblasts Function in Children with Down’s Syndrome-Associated Arthritis
Serena Foo¹, Achilleas Floudas², Aisling O' Brien¹, Sharon Ansboro¹, Ronan Mullan³, Douglas Veale⁴, Emma MacDermott⁵, Derek Deely⁶, Charlene Foley⁶, Orla Killeen⁶ and Ursula Fearon¹, ¹Trinity College Dublin, Dublin, Ireland, ²Molecular Rheumatology Trinity Biomedical Sciences Institute, Dublin, Ireland, ³Tallaght University Hospital, Dublin, Ireland, ⁴University College Dublin, Dublin, Ireland, ⁵Children’s Health Ireland (CHI) at Crumlin, Dublin, Ireland, ⁶Children's Health Ireland, Crumlin, Dublin, Ireland
Background/Purpose: Juvenile idiopathic arthritis (JIA) was thought to be the most common inflammatory arthritis in children. However an aggressive, erosive arthritis of little-known immunologic mechanism…
Abstract Number: 0018 • ACR Convergence 2021
Caspase-8 Variant G Regulates Rheumatoid Arthritis Fibroblast-Like Synoviocyte Aggressive Behavior
Cecilia Ansalone¹, Gyrid Nygaard¹, Richard Ainsworth¹, Rizi Ai¹, Deepa Hammaker¹, Narayanan Perumal², Ken Weichert², Frances Tung², Lalitha Kodandapani², Michael Sauder², Elisabeth Mertsching², Robert Benschop³, Wei Wang¹, David Boyle¹ and Gary Firestein¹, ¹University of California San Diego, San Diego, CA, ²Eli Lilly and Company, San Diego, CA, ³Eli Lilly and Company, Indianapolis, IN
Background/Purpose: Rheumatoid arthritis (RA) fibroblast-like synoviocytes (FLS) display an aggressive phenotype, including abnormal migration and invasion. Using data from our previous studies defining the epigenetic…
Abstract Number: 1092 • ACR Convergence 2021
Altered Metabolic Pathways in Synovial Fibroblasts of Individuals at Risk of Developing Rheumatoid Arthritis
Tineke de Jong¹, Simone Denis¹, Paul Tak², Riekelt Houtkooper¹ and Lisa van Baarsen¹, ¹Amsterdam UMC, Amsterdam, Netherlands, ²Candel Therapeutics, Cambridge, United Kingdom
Background/Purpose: Cellular metabolism has been studied in fibroblast-like synoviocytes (FLS) of rheumatoid arthritis (RA) and osteoarthritis (OA) patients and raises the question whether observed metabolic…
Abstract Number: 0020 • ACR Convergence 2021
Citrullination Drives the Expression of Pro-fibrotic Genes in Rheumatoid Arthritis Fibroblast-like Cells
Peter Maloley, Evan Ryan, Nozima Aripova, Michael Duryee, Bryant England, Ted Mikuls and Geoffrey Thiele, University of Nebraska Medical Center, Omaha, NE
Background/Purpose: The pathophysiology of rheumatoid arthritis (RA) is hallmarked by joint inflammation, thickening of the pannus, and resultant joint destruction. Within the synovial tissue, citrullinated…
Abstract Number: 1249 • ACR Convergence 2021
In Rheumatoid Arthritis, Inhibition of the Lactate Monocarboxylate Transporters-1, and -4 in Pathological Fibroblast-Like Synoviocytes Led to Decreased ChemokineProduction
Morten Aagaard Nielsen¹, Maithri Aspari², Klaus Frommer³, Malene Hvid², Tue Kragstrup² and Bent Deleuran², ¹Aarhus University / Aarhus University Hopital, Aarhus, Denmark, ²Aarhus University, Aarhus, Denmark, ³Justus-Liebig-University Giessen, Bad Nauheim, Germany
Background/Purpose: Pathological subsets of fibroblast-like synoviocytes (FLS) have recently been identified as key players in the aggravation of both persistent joint inflammation and destruction in…
Abstract Number: 0024 • ACR Convergence 2021
Heterogeneity of Inflammatory HLA-DR+ Synovial Fibroblasts in Rheumatoid Arthritis Is Driven by Responses to Leukocyte-Derived Cytokines
Melanie Smith¹, Alejandro Kochen¹, Vianne Gao², Michail Schizas², Edward DiCarlo¹, Susan Goodman¹, Christina Leslie³, Laura Donlin¹ and Alexander Rudensky⁴, ¹Hospital for Special Surgery, New York, NY, ²Memorial Sloan Kettering Cancer Center, New York, NY, ³Computational and Systems Biology Program Memorial Sloan Kettering Cancer Center, New York, NY, ⁴Memorial Sloan Kettering Cancer Center / Howard Hughes Medical Institute, New York, NY
Background/Purpose: Treatment-refractory rheumatoid arthritis (RA) represents a major unmet need with substantial societal burden. Targeting RA-associated fibroblast-like synoviocytes (FLS) may provide a less-immunosuppressive therapeutic option.…
Abstract Number: 1476 • ACR Convergence 2021
Metabolic Reprogramming: Inhibiting Osteoarthritis-induced Expression of the Pyruvate Dehydrogenase Kinase Preserves Mitochondrial Respiration
Alexandra Damerau¹, Marieluise Kirchner², Moritz Pfeiffenberger¹, Duc Ha Do Nguyen¹, Yannick Palmowski¹, Benjamin Bartek¹, Tazio Maleitzke¹, Sebastian Hardt¹, Tobias Winkler¹, Frank Buttgereit³ and Timo Gaber¹, ¹Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany, ²Berlin Institute of Health and Max-Delbrück-Centrum for Molecular Medicine, Berlin, Germany, ³Charité – Universitätsmedizin Berlin, Berlin, Germany
Background/Purpose: Osteoarthritis (OA) is the most common degenerative joint disease worldwide, traditionally classified as non-inflammatory. Recently, attention has been drawn to the importance of synovitis…
Abstract Number: 0026 • ACR Convergence 2021
Synovial Fibroblasts Acquire a Proinflammatory and Destructive Phenotype After Exposure to αS1-Casein (CSN1S1)
Nadine Honke¹, Tim Appel¹, Matthias Schneider² and Georg Pongratz³, ¹Department of Rheumatology, Hiller Research Center Rheumatology, University Hospital Düsseldorf, Germany (* contributed equally), Düsseldorf, Germany, ²Policlinic & Hiller Research Unit Rheumatology, UKD, Heinrich-Heine University, Düsseldorf, Germany, ³Polyclinic and Functional Area for Rheumatology & Hiller Research Center Rheumatology, University Hospital Düsseldorf, Düsseldorf, Germany
Background/Purpose: The milk protein αS1-Casein (CSN1S1) was described to be overexpressed in synovial tissue of patients with rheumatoid arthritis (RA) and osteoarthritis (OA). Recently we…
Abstract Number: 1927 • ACR Convergence 2021
Heterogeneity of Juvenile Idiopathic Arthritis Synovial Fibroblasts Correlates to Disease Progression and Provides Compelling Diagnostic Data
Megan Simonds¹, Kathleen Sullivan², Carlos Rose³ and AnneMarie Brescia⁴, ¹Nemours, Wilmington, DE, ²The Children's Hospital of Philadelphia, Philadelphia, PA, ³Thomas Jefferson University/duPont Hospital for Children, Wilmington, DE, ⁴Nemours/A.I.duPont Hospital for Children, Wilmington, DE
Background/Purpose: Juvenile Idiopathic Arthritis (JIA) induces growth disturbances in affected joints. Fibroblast-like synoviocytes (FLS) play a crucial role in JIA pathogenesis; however, the mechanisms by…

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