期刊
CANCER BIOTHERAPY AND RADIOPHARMACEUTICALS
卷 34, 期 6, 页码 405-412出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/cbr.2018.2761
关键词
osteosarcoma; miR-5195-3p; NEDD9; cell proliferation; apoptosis
Objective: Aberrantly expressed microRNAs (miRs) have associated with the development and progression of osteosarcoma (OS). In this study, the authors aimed to investigate the biological function of miR-5195-3p and the underlying mechanisms. Methods: Quantitative real-time polymerase chain reaction analysis was performed to determine the expression of miR-5195-3p in OS tissues and cell lines. Then, two OS cell lines (MG-63 and U2OS) were transfected with miR-5195-3p mimics to obtain stably miR-5195-3p overexpression cell lines. A series of functional assays, including Cell Counting Kit-8 assay, colony formation assay, flow cytometry assay, and Hoechst staining were performed to analyze cell proliferation and apoptosis. Results: The authors first observed downregulation of miR-5195-3p in OS tissues and cell lines. A series of functional assays demonstrated that miR-5195-3p overexpression significantly attenuated OS cell proliferative activity and induced apoptosis. At a molecular level, the neural precursor cell which expressed developmentally downregulated protein 9 (NEDD9), was inversely correlated with the expression level of miR-5195-3p. Furthermore, ectopic expression of NEDD9 counteracted the antiproliferative and apoptotic effects of miR-5195-3p overexpression in OS cells. Conclusions: In summary, the miR-5195-3p/NEDD9 axis may be a promising antitumor agent for OS.
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