1. [Effect of miR-137 on the proliferation and apoptosis of endothelial cells regulated by AKT2 gene].
- Author
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Xu Z, Liu Y, Shen N, Fang T, and Tian F
- Subjects
- Cells, Cultured, Glucose, Humans, Apoptosis, Cell Proliferation, Human Umbilical Vein Endothelial Cells cytology, MicroRNAs genetics, Proto-Oncogene Proteins c-akt genetics
- Abstract
Objective: To assess the effect of miR-137 on the proliferation and apoptosis of human umbilical vein endothelial cells (HUVECs) induced by high glucose and its mechanism., Methods: HUVECs cells were divided into low-glucose group (5.5 mmol/L glucose-treated cells), high-glucose group (33.36 mmol/L glucose-treated cells), anti-NC group (cells treated with 33.36 mmol/L glucose after anti-NC transfection) and anti-miR-137 group (cells treated with 33.36 mmol/L glucose after anti-miR-137 transfection). After 48 hours, qRT-PCR was used to determine the expression of miR-137. CCK-8 assay and flow cytometry were used to detect cell proliferation and apoptosis rate, respectively. The targeting relationship between miR-137 and AKT2 was validated by dual fluorescence reporter gene detection system and AKT2 protein expression after overexpression or inhibition of miR-137., Results: High glucose could significantly up-regulate the expression of miR-137 in HUVECs cells, and the expression of miR-137 in HUVECs cells transfected with miR-137 inhibitor was significantly decreased (P<0.05). High glucose can significantly inhibit HUVECs cell proliferation and induce apoptosis, while inhibition of miR-137 expression can weaken the effect of high glucose on HUVECs cell proliferation inhibition and apoptosis promotion (P<0.05). Inhibiting AKT2 expression could weaken the inhibitory effect of miR-137 inhibitor on HUVECs cell proliferation and apoptosis (P<0.05)., Conclusion: Inhibiting the expression of miR-137 gene can attenuate the proliferation inhibition and apoptosis promotion of HUVECs induced by high glucose, and the mechanism is related to activating the expression of AKT2.
- Published
- 2019
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