Home Bratislava Medical Journal 2017 Bratislava Medical Journal Vol.118, No.8, p.499-503, 2017

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

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Bratislava Medical Journal Vol.118, No.8, p.499-503, 2017

Title: MiR-26a regulates vascular smooth muscle cell calcification in vitro through targeting CTGF
Author: W. Wu, Y. Q. Shang, S. L. Dai, F. Yi, X. C. Wang

Abstract: Vascular calcification is one of the most important factors for high morbidity and mortality from cardiovascular and cerebrovascular diseases. The aim of this study is to investigate the effect and mechanism of miR-26a on vascular smooth muscle cell calcification. First, the VSMCs were induced by β-glycerol phosphate (β-GP) for 7d and 14d, and Alizarin Red S staining was performed to examine the mineralized nodule change; then real time RT-PCR and western blotting were performed to explore the expression of miR-26a, CTGF, OPG, RANKL and ALP in un-induced and β-GP-induced VSMCs; next, the VSMCs were transfected with miR-26a mimics, and Alizarin Red S staining was performed to examine the mineralized nodule change; finally, real time RT-PCR and western blotting were performed to explore the expression of miR-26a, CTGF, OPG, RANKL and ALP in un-transfected and miR-26a mimics transfected VSMCs. After β-GP treatment, β-GP promoted clear mineralized nodule changes, and miR-26a and OPG expression were significantly decreased and CTGF, RANKL and ALP expression were increased in VSMCs. Overexpression of miR-26a inhibited VSMCs calcification induced by β-GP, and regulated the expression of CTGF, OPG, RANKL and ALP. Our findings suggested that up-regulation of miR-26a before β-GP treatment inhibits VSMCs calcification through targeting CTGF (Fig. 4, Ref. 18).

Keywords: MiR-26a, VSMCs, β-GP, CTGF signaling, calcification
Published online: 31-Aug-2017
Year: 2017, Volume: 118, Issue: 8 Page From: 499, Page To: 503
doi:10.4149/BLL_2017_096


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