Omentin-1 prevents cartilage matrix destruction by regulating matrix metalloproteinases - 01/07/17
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Abstract |
Matrix metalloproteinases (MMPs) play a crucial role in the degradation of the extracellular matrix and pathological progression of osteoarthritis (OA). Omentin-1 is a newly identified anti-inflammatory adipokine. Little information regarding the protective effects of omentin-1 in OA has been reported before. In the current study, our results indicated that omentin-1 suppressed expression of MMP-1, MMP-3, and MMP-13 induced by the proinflammatory cytokine interleukin-1β (IL-1β) at both the mRNA and protein levels in human chondrocytes. Importantly, administration of omentin-1 abolished IL-1β-induced degradation of type II collagen (Col II) and aggrecan, the two major extracellular matrix components in articular cartilage, in a dose-dependent manner. Mechanistically, omentin-1 ameliorated the expression of interferon regulatory factor 1 (IRF-1) by blocking the JAK-2/STAT3 pathway. Our results indicate that omentin-1 may have a potential chondroprotective therapeutic capacity.
Le texte complet de cet article est disponible en PDF.Keywords : Osteoarthritis, Omentin-1, Matrix metalloproteinases, Type II collagen
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Vol 92
P. 265-269 - août 2017 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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