Abstracts tagged "Fibroblasts, Synovial"

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…
Abstract Number: 0035 • ACR Convergence 2021
Bromodomain Protein-regulated Stress Response in Rheumatoid Arthritis Synovial Fibroblasts
Tanja Seifritz¹, Thomas Züllig¹, Larissa Moser¹, Oliver Distler², Caroline Ospelt¹ and Kerstin Klein³, ¹Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland, ²Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich/University of Zurich, Zurich, Switzerland, ³Department of Rheumatology and Immunology, University Hospital Bern, Bern, Switzerland
Background/Purpose: Hypoxia and subsequent oxidative stress are early events in the RA joint and contribute to the activation of synovial fibroblasts (SF). Small molecule inhibitors…
Abstract Number: 0041 • ACR Convergence 2021
Vascularized ‘Synovium-on-a-Chip’ – A Novel and Adaptable Model for Dissecting Inflammatory Biology Underlying Rheumatoid Arthritis
Theresa Wampler Muskardin¹, Chao Ma², Benteng Ma², Kayla Van Buren³, Timothy Niewold⁴ and Weiqiang Chen², ¹Colton Center for Autoimmunity, NYU School of Medicine, New York, NY, ²New York University, New York, NY, ³Mnemo Therapeutics, New York, NY, ⁴Colton Center for Autoimmunity NYU School of Medicine, New York, NY
Background/Purpose: Rheumatoid arthritis (RA) is a common multisystem inflammatory condition, affecting approximately 1% of the world population. The mechanisms underlying RA are still incompletely defined…
Abstract Number: 0458 • ACR Convergence 2021
Single Cell Profiling Reveals a Wnt-mediated Transcriptional Gradient That Drives Inflammation in Rheumatoid Arthritis Synovial Fibroblast Pathology
Alisa Mueller¹, Angela Zou¹, Emily Taylor², Triin Major², David Gardner³, Adam Croft⁴, Roche Fibroblast Network Consortium⁵, Andrew Filer², Christopher Buckley⁶, Kevin Wei¹, Ilya Korsunsky¹, Soumya Raychaudhuri¹ and Michael Brenner⁷, ¹Brigham and Women's Hospital, Boston, MA, ²University of Birmingham, Birmingham, United Kingdom, ³University of Birmingham, College of Medical and Dental Sciences, Birmingham, United Kingdom, ⁴University of Birmingham, Halesowen, United Kingdom, ⁵Roche Innovation Center Basel, Basel, Switzerland, ⁶University of Oxford, Oxford, United Kingdom, ⁷Brigham and Women's Hospital, Harvard Medical School, Newton, MA
Background/Purpose: Synovial fibroblasts are key inflammatory aggressors in rheumatoid arthritis (RA) that mediate cartilage and bone destruction, yet therapies directly targeting these cells are lacking.…
Abstract Number: 0508 • ACR Convergence 2021
The Impact of Macrophages Stimulated with Malondialdehyde-Acetaldehyde And/or Citrulline Modified Proteins on Fibroblasts Activation
Nozima Aripova, Michael Duryee, Evan Ryan, 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), chronic synovial inflammation is accompanied by fibrotic responses that together lead to pannus formation and progressive joint damage. Exposure to…
Abstract Number: 0510 • ACR Convergence 2021
Fibrinogen Modified with Malondialdehyde-Acetaldehyde Adduct (MAA) And/or Citrulline (CIT) Induces Unique Cellular Responses in Human RA Synoviocytes
Brittany Wordekemper, Nozima Aripova, Michael Duryee, Eric Daubach, Bryant England, James O'Dell, Ted Mikuls and Geoffrey Thiele, University of Nebraska Medical Center, Omaha, NE
Background/Purpose: Malondialdehyde (MDA) is produced in response to oxidative stress and is associated with inflammation and disease pathogenesis. MDA can break down and form acetaldehyde…
Abstract Number: 0514 • ACR Convergence 2021
Extracellular Sulfatase-2 Mediates TNF-α Inflammatory Signaling in Human Rheumatoid Arthritis Synovial Fibroblasts
Ruby Siegel¹, Anil singh¹, Judy Vinh¹, H. Mark Kenney², Edward Schwarz³, David Fox⁴, Sadik Khuder⁵ and Salah-uddin Ahmed¹, ¹Washington State University, Spokane, WA, ²University of Rochester Medical Center, Rochester, NY, ³University of Rochester, Rochester, NY, ⁴Division of Rheumatology, University of Michigan Medical School, Ann Arbor, MI, ⁵Department of Medicine and Public Health, University of Toledo,, Toledo, OH
Background/Purpose: TNF-α drives RA synovial fibroblast (RASF)-mediated hyperplasia and joint tissue destruction. Extracellular sulfatase-2 (Sulf-2) influences receptor/ligand binding and subsequent signaling of chemokines, cytokines, and…
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…

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Accepted abstracts are made available to the public online in advance of the meeting and are published in a special online supplement of Arthritis & Rheumatology. Information contained in those abstracts may not be released until the abstracts appear online. 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 a scientific presentation or presentation of additional new information that will be available at the time of the meeting) is under embargo until Saturday, November 11, 2023.

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