Journal
JOURNAL OF GENE MEDICINE
Volume 22, Issue 9, Pages -Publisher
WILEY
DOI: 10.1002/jgm.3203
Keywords
apoptosis; ATDC5; miR-16-5p; NEAT1; OA; proliferation
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Background Non-coding RNAs are endogenous regulators of gene expression that have been implicated in the pathogenesis of various diseases, including osteoarthritis (OA). Long non-coding RNA nuclear enriched abundant transcript 1 (NEAT1) and miR-16-5p are up-regulated in OA tissues; however, their functions have not been clarified. Methods Chondrocyte ATDC5 was used as a cell model. NEAT1 overexpression and knockdown cells were established by transfection with lipofectamine. miR-16-5p was also transfected into the cells using lipofectamine. Moreover, cell proliferation was examined using cell counting kit-8 assays. Cell apoptosis was evaluated by flow cytometry. The interaction between NEAT1 and miR-16-5p was validated by a Quantitative real-time RT-PCR (qRT-PCR) and dual-luciferase reporter assays. Results NEAT1 could increase cell viability and decrease apoptosis of ATDC5 cells, whereas miR-16-5p had the opposite effects. NEAT1 could specifically bind to miR-16-5p and reduce its expression. Conclusions The suppression of miR-16-5p, as mediated by NEAT1 overexpression, could promote proliferation and inhibit apoptosis of chondrocytes. It was also revealed that NEAT1 is a double-edged sword during the development of OA.
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