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    Home > Active Ingredient News > Immunology News > Ann Rheum Dis: Synovial fibroblasts targeting the IL-6-YAP-Snail signaling axis improve osteoarthritis

    Ann Rheum Dis: Synovial fibroblasts targeting the IL-6-YAP-Snail signaling axis improve osteoarthritis

    • Last Update: 2022-01-21
    • Source: Internet
    • Author: User
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    Background: Rheumatoid arthritis (RA) is a common immune -mediated chronic inflammatory disease that can cause joint damage and deformity
    .


    Current treatments include antirheumatic drugs aimed at suppressing systemic immunity


    Common immune -mediated chronic inflammatory diseases that can cause joint damage and deformity of immunity .


    Methods: Immunohistochemistry and qRT-PCR were used to analyze the synovial tissue of RA patients and mice with antigen-induced arthritis (AIA)
    .


    Pdgfrα-CreER and Gdf5-Cr mice were targeted, hybridized with fluorescent reporters for cell tracking, and Yap-flox mice were subjected to conditional Yap ablation


    RESULTS: Yap, its binding partner Snail and downstream target connective tissue growth factor were up-regulated in proliferative human RA and mouse AIA synovium, and Yap was detected in SF but not in macrophages
    .


    Lineage tracing revealed that Pdgfrα-expressing SFs expanded polyclonally during AIA, with expansion of Gdf5-lineage SF subsets primarily from the embryonic interarticular region


    Conclusions: Our findings do not reveal the IL-6-YAP-Snail signaling axis of pathogenic SF in osteoarthritis


    Our discovery and revelation of the IL-6-YAP-Snail signaling axis of pathogenic SF in osteoarthritis

    Original source: Symons RA, Colella F, Collins FL, et al.


    Targeting the IL-6-Yap-Snail signalling axis in synovial fibroblasts ameliorates inflammatory arthritis.


     

     

     

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