High Concentrations of Uric Acid Inhibit Endothelial Cell Migration via miR-663 Which Regulates Phosphatase and Tensin Homolog by Targeting Transforming Growth Factor-β1

Microcirculation : the Official Journal of the Microcirculatory Society, Inc
Quan HongDi Wu

Abstract

Whether microRNAs participate in endothelial dysfunction HUA remains unknown. A previous study indicated that miR-663 was the most significantly differentially expressed endothelial microRNA under HUA conditions. Some studies have demonstrated that the miR-663 target gene and TGF-β1, promoted endothelial cell migration by inhibiting PTEN deleted on chromosome 10. Therefore, we hypothesized that HUA inhibits endothelial migration via miR-663, which regulates PTEN by targeting TGF-β1. PCR analysis was performed to determine miR-663 expression levels. A luciferase assay was performed to validate whether miR-663 targets TGF-β1 directly. Western blot analysis was performed to determine TGF-β1 and PTEN expression levels. An miR-663 inhibitor and TGF-β1- and PTEN-specific siRNAs were transfected into EA.hy926 cells to inhibit miR-663, TGF-β1, and PTEN expression, respectively. A wound healing assay was performed to determine the migratory ability of EA.hy926 cells. miR-663 had higher expression levels in HUA-stimulated endothelial cells and in the sera of hyperuricemic patients and animals. TGF-β1 was targeted directly by miR-663. Endothelial miR-663 was up-regulated under HUA conditions, and HUA inhibited endothelial cell migration v...Continue Reading

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Citations

Jan 16, 2016·Digestive Diseases and Sciences·Gyongyi Szabo, Timea Csak
Aug 24, 2016·Cell Death Discovery·W T Y LeeJ C St John
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