MiR-486 Regulates the Glycometabolism of Hematopoietic Cells by Targeting Sirt1

Zhongguo shi yan xue ye xue za zhi
Xue-Feng ShiLi-Sheng Wang

Abstract

To investigate the effect and mechanism of miR-486 on glycometabolism of hematopoietic cells. qRT-PCR was applied to detect the expression of miR-486 or Sirt1 on TF-1 cells under hypoxia. Lentivirus was used to mediate the overexpression or inhibition of miR-486 on TF-1 cells and qRT-PCR was used to detect the expressions of Sirt1, glucose transporter 1(Glut1) and glucose transporter 4(Glut4). Lentivirus-mediated Sirt1-shRNA transduction was used to knockdown Sirt1 expression which was detected by qRT-PCR and Western blot. The expressions of Glut1 and Glut4 were determined by qRT-PCR. Hypoxia promoted the expression of miR-486 and inhibited the expression of Sirt1. MiR-486 overexpression could inhibit the expression of Sirt1 and promote the expressions of Glut1 and Glut4, whereas miR-486 silencing upregulated the sirt1 expression and inhibited the expressions of Glut1 and Glut4. And inhibition of Sirt1 expression increased the expressions of Glut1 and Glut4. MiR-486 can regulate the glycometabolism of hematopoietic cells by targeting Sirt1.

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