Abstract Number: 0600 • ACR Convergence 2022
Correlates Between Rheumatoid Arthritis Clinical Factors and Synovial Cell Phenotypes: Data from the Accelerated Medicines Partnership
Background/Purpose: Prior studies have characterized the diverse cell types in the RA synovium through a multi-center consortium incorporating RNA-seq data. Due to the novelty of…Abstract Number: 1705 • ACR Convergence 2022
Peptidoglycan Amplifies CD4+ T Cell Activation by MHCII+ Fibroblast-like Synoviocytes in an in Vitro Model of Lyme Arthritis
Background/Purpose: Lyme arthritis (LA), caused by infection with Borrelia burgdorferi (Bb), is characterized by proliferative synovitis accompanied by dysregulated autoimmune Th1 responses. Fibroblast-like synoviocytes (FLS)…Abstract Number: 0606 • ACR Convergence 2022
Mechanism of Joint-Specific Homeobox D10 Regulation in Rheumatoid Arthritis Fibroblast-Like Synoviocytes
Background/Purpose: Rheumatoid arthritis (RA) fibroblast-like synoviocytes (FLS) have joint-specific epigenetic and transcriptome profiles. This is particularly notable for homeobox (HOX) genes, which contribute to joint…Abstract Number: 1733 • ACR Convergence 2022
Granzyme K Elicits a New Pathway for Complement Activation in RA Synovium
Background/Purpose: T cells are major drivers of rheumatoid arthritis (RA) pathogenesis. Most research has focused on CD4 T cells, but we have found that CD8+…Abstract Number: 0607 • ACR Convergence 2022
Cadherin 6 Regulates Rheumatoid Arthritis Fibroblasts-Like Synoviocyte Aggressiveness
Background/Purpose: Rheumatoid arthritis (RA) fibroblast-like synoviocytes (FLS) display an aggressive behavior. Previous studies have implicated cadherins in FLS function in this phenotype, which are type…Abstract Number: 2182 • ACR Convergence 2022
mRNA Vaccine Against Fibroblast Activation Protein Ameliorates Murine Models of Inflammatory Arthritis
Background/Purpose: Synovial fibroblasts in patients with rheumatoid arthritis (RA) contribute substantially to the perpetuation of synovitis and invasion to cartilage and bone, and have been…Abstract Number: 0608 • ACR Convergence 2022
Wnt Pathway Regulators R-spondin 3 and Dickkopf-related Protein 3 Demarcate a Transcriptional Gradient That Drives Synovial Fibroblast Inflammatory Pathology in Rheumatoid Arthritis
Background/Purpose: Synovial fibroblasts are key players in rheumatoid arthritis (RA) where they secrete inflammatory cytokines and directly instigate cartilage and bone destruction. However, most treatments…Abstract Number: 0024 • ACR Convergence 2021
Heterogeneity of Inflammatory HLA-DR+ Synovial Fibroblasts in Rheumatoid Arthritis Is Driven by Responses to Leukocyte-Derived Cytokines
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
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)
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
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
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
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
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
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…
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