例如:"lncRNA", "apoptosis", "WRKY"

miR-455-3p enhances chondrocytes apoptosis and inflammation by targeting COL2A1 in the in vitro osteoarthritis model.

Biosci Biotechnol Biochem. 2020 Apr;84(4):695-702. doi:10.1080/09168451.2019.1690974. Epub 2019 Dec 06
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摘要


Emerging evidence has shown that microRNAs are important regulators in osteoarthritis (OA). Here, we investigated the function role of miR-455-3p in the pathogenesis of OA and the underlying molecular mechanisms. We first established the in vitro OA model using IL-1β treated human chondrocyte cell line CHON-001. Using quantitative real time PCR, we observed the expression of miR-455-3p expression was up-regulated in the OA cartilage tissues and IL-1β-treated chondrocytes. A series of function assays, including CCK-8 assay, flow cytometry, and ELISA assay showed that miR-455-3p contributed to IL-1β-induced apoptosis and inflammation. Moreover, COL2A1 was confirmed as a target of miR-455-3p by luciferase reporter assay. Furthermore, COL2A1 knockdown reversed the effects of miR-455-3p inhibition, and aggravated the effects of miR-455-3p overexpression on IL-1β-induced OA-like phenomenon. Taken together, these results revealed that miR-455-3p/COL2A1 axis might provide a novel molecular target for the treatment of OA.

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