Home Bratislava Medical Journal 2017 Bratislava Medical Journal Vol.118, No.8, p.449-452, 2017

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Published Monthly, in English
Founded: 1919
ISSN 0006-9248
(E)ISSN 1336-0345

Impact factor 1.564


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Bratislava Medical Journal Vol.118, No.8, p.449-452, 2017

Title: MicroRNA-497 suppress osteosarcoma by targeting MAPK/Erk pathway
Author: Z. L. Gui, T. L. Wu, G. C. Zhao, Z. X. Lin, H. G. Xu


BACKGROUND: The aim of this study was to study the mechanism of miRNA-497 in the apoptosis of osteosarcoma cells.
METHODS: MG-63 cells were divided into the three groups: NC, BL and miRNA groups, NC group were treated with nothing; BL group were transfected with blank vector; miRNA group were transfected with miRNA-497. Cell proliferation rate was detected by MTT method; Apoptosis rate was detected by flow cytometry and measuring the gene and protein expression of MAPK, Erk and P 21 by RT-PCR and Western blot.
RESULTS: The cell proliferation rate of miRNA group was significantly lower compared to NC group and BL group (p < 0.05); while the apoptosis rate of miRNA group (32.17 ± 3.23 %) was significantly higher than that of NC group  (8.40 ± 1.78 %) and BL group (8.83 ± 0.99 %) (p < 0.05, respectively).

Regarding the gene expression detection, we found that gene and protein expressions of MAPK, Erk and P21 of miRNA group were significantly different compared to NC and BL groups (p < 0.05, respectively).
CONCLUSION: MiR-497 can activate P21 expression by inhibiting the expression of MAPK/Erk signaling pathway, thus promoting the apoptosis of osteosarcoma cells (Fig. 5, Ref. 18).

Keywords: miRNA-497, MG-63, apoptosis, MAPK/Erk, P21
Published online: 31-Aug-2017
Year: 2017, Volume: 118, Issue: 8 Page From: 449, Page To: 452

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