Abstracts tagged "Fibroblasts, Synovial"

Abstract Number: 0515 • ACR Convergence 2021
The Extracellular Sulfatase-2 Inhibitor OKN-007 Abrogates TNF-α-induced Inflammatory Mediators in Human Rheumatoid Arthritis Synovial Fibroblasts
Ruby Siegel, Sang Han and Salah-uddin Ahmed, Washington State University, Spokane, WA
Background/Purpose: Recent unpublished findings from our lab show that the extracellular enzyme sulfatase-2 (Sulf-2) facilitates pro-inflammatory TNF-α signaling which activates rheumatoid arthritis synovial fibroblasts (RASFs).…
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: 0781 • ACR Convergence 2020
Phenotypic and Functional Characterisation of Synovial Fluid-derived Fibroblast-like Synoviocytes in Rheumatoid Arthritis
Ditte Køster¹, Johanne Hovgaard Egedal¹, Malene Hvid¹, Martin Roelsgaard Jakobsen¹, Ulf Müller-Ladner², Bent Deleuran¹, Tue Wenzel Kragstrup¹, Elena Neumann³ and Morten Aagaard Nielsen¹, ¹Aarhus University, Aarhus, Denmark, ²Department of Rheumatology, Immunology, Osteology and Physical Medicine, Justus Liebig University Gießen, Campus Kerckhoff, Bad Nauheim, Germany, Bad Nauheim, Germany, ³Department of Rheumatology and Clinical Immunology, Campus Kerckhoff, Justus Liebig University Giessen, Bad Nauheim, Germany
Background/Purpose: Fibroblast-like synoviocytes (FLS) are central cellular components in persistent inflammatory joint diseases such as rheumatoid arthritis (RA). Pathological subsets of FLS have been identified…
Abstract Number: 0782 • ACR Convergence 2020
Epigenetic Regulation of Metabolic Transporters in Rheumatoid Arthritis Fibroblast-Like Synoviocytes
Brian Pedersen¹, Rizi Ai¹, Alyssa Torres¹, Wei Wang¹, Gary Firestein² and Monica Guma³, ¹University of California San Diego, La Jolla, ²University of California, San Diego, La Jolla, CA, ³Division of Rheumatology, University of California San Diego, Department of Medicine, Autonomous University of Barcelona, La Jolla, CA
Background/Purpose: Epigenetic changes contribute to the pathogenesis of rheumatoid arthritis (RA) and a comprehensive epigenomic characterization of RA fibroblast-like synoviocytes (FLS) has recently been described.…
Abstract Number: 0783 • ACR Convergence 2020
Role of Glutamine Metabolism in Rheumatoid Arthritis Fibroblast-Like Synoviocyte Aggressive Phenotype
Alyssa Torres¹, Brian Pedersen¹, Gary Firestein², Elsa Sanchez-Lopez¹ and Monica Guma³, ¹University of California San Diego, La Jolla, ²University of California, San Diego, La Jolla, CA, ³Division of Rheumatology, University of California San Diego, Department of Medicine, Autonomous University of Barcelona, La Jolla, CA
Background/Purpose: Fibroblast-like synoviocyte (FLS) activation is a key component of rheumatoid arthritis (RA) inflamed synovium. Their aggressive phenotype in RA contributes to initiation and perpetuation…

All abstracts accepted to ACR Convergence are under media embargo once the ACR has notified presenters of their abstract’s acceptance. They may be presented at other meetings or published as manuscripts after this time but should not be discussed in non-scholarly venues or outlets. The following embargo policies are strictly enforced by the ACR.

Accepted abstracts are made available to the public online in advance of the meeting and are published in a special online supplement of our scientific journal, Arthritis & Rheumatology. Information contained in those abstracts may not be released until the abstracts appear online. In an exception to the media embargo, academic institutions, private organizations, and companies with products whose value may be influenced by information contained in an abstract may issue a press release to coincide with the availability of an ACR abstract on the ACR website. However, the ACR continues to require that information that goes beyond that contained in the abstract (e.g., discussion of the abstract done as part of editorial news coverage) is under media embargo until 10:00 AM CT on October 25. Journalists with access to embargoed information cannot release articles or editorial news coverage before this time. Editorial news coverage is considered original articles/videos developed by employed journalists to report facts, commentary, and subject matter expert quotes in a narrative form using a variety of sources (e.g., research, announcements, press releases, events, etc.).

Violation of this policy may result in the abstract being withdrawn from the meeting and other measures deemed appropriate. Authors are responsible for notifying colleagues, institutions, communications firms, and all other stakeholders related to the development or promotion of the abstract about this policy. If you have questions about the ACR abstract embargo policy, please contact ACR abstracts staff at [email protected].