ArticleJournal of advanced research2026
OGT regulates histone demethylation and alleviates osteoarthritis progression by O-GlcNAcylation of KDM6B.
Article in Journal of advanced research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Multi-Technique Integration Identifies O-GlcNAc Transferase in Fibroblast-Like Synoviocytes as a Therapeutic Target for Rheumatoid Arthritis.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
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Authors and funding
10 authors.
Funding
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Abstract
objectiveOsteoarthritis (OA) is a common orthopedic disease characterized by cartilage degeneration, osteophyte formation, and synovial hyperplasia. Although dysregulated O-GlcNAcylation has been implicated in various musculoskeletal and inflammatory disorders, its specific role and molecular targets in OA pathogenesis remain largely unexplored. In this study, we aimed to conduct a multidimensional investigation to demonstrate and delineate the chondrocyte-specific functions and mechanisms of O-GlcNAc transferase (OGT) during OA progression.
methodsTo explore the mechanisms of OA progression, we analyzed OGT expression using GEO data and clinical cartilage samples. Cartilage-specific OGT knockout mice (Acan-CreER
resultsOGT expression is reduced in OA cartilage, and its overexpression delays cartilage degeneration, while cartilage-specific OGT deletion accelerates OA progression. Mechanistically, we found that OGT interacts with and O-GlcNAcylates KDM6B at serine 215, thereby inhibiting its ubiquitination, enhancing protein stability, and promoting extracellular matrix gene expression by demethylating H3K27me3 at Col2a1 and Col6a6 loci.
conclusionsOGT is a key regulator of OA that exerts its function by modulating the epigenetic state of chondrocytes. Loss of OGT in chondrocytes not only disrupts normal cartilage development but also accelerates OA progression under pathological conditions, thereby providing new experimental evidence for understanding OA pathogenesis and informing the development of potential therapeutic strategies.
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