The Influence of MiRNA-1 in Cardiomyocyte Apoptosis in Rats

VernacularTitle:miRNA-1对大鼠心肌细胞凋亡的影响
Author: Jixiang WANG ; Hongliang CONG
Publication Type:Journal Article
Keywords: myocytes,cardiac; apoptosis; microRNAs; proto-oncogene protein c-bcl-2; rats; miRNA-1
From: Tianjin Medical Journal 2014;(5):455-457
CountryChina
Language:Chinese
Abstract: Objective To investigate the effect of miRNA-1 on the cardiomyocyte apoptosis in rats. Methods MicroRNA-1 mimics was transfected into the cultured H9c2 cell line (miRNA-1 group). Cells transfected with random miR-NA fragment was used as negative control group. The cell apoptosis was evaluated by FCM assay. MTT assay was used to de-tect the cell viability. The expression level of miRNA-1 was detected by real-time PCR. The expression levels of Bcl-2 mRNA and protein were detected by real-time PCR and Western blot assay. Results Compared with normal and negative control groups, the expression level of miRNA-1 was significantly higher in H9c2 cardiomyocytes, the apoptosis rate was in-creased, the cell vitality and Bcl-2 expression level were significantly decreased after transfection of miRNA-1 mimics. Conclusion miRNA-1 mimics can up-regulate miRNA-1 level, inhibit proliferation and induce cardiomyocyte apoptosis.