MicroRNA-221 regulates high glucose-induced endothelial dysfunction.
MicroRNA-221 regulates high glucose-induced endothelial dysfunction.
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DOI:
10.1016/j.bbrc.2009.02.013
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发表时间:
2009-03-27
影响因子:
3.1
通讯作者:
Geng, Yong-Jian
中科院分区:
文献类型:
--
作者:
Li, Yangxin;Song, Yao-Hua;Li, Fan;Yang, Tong;Lu, Yao Wei;Geng, Yong-Jian
Persistent hyperglycemia in diabetes causes endothelial cell dysfunction. Exposure to high levels of glucose, which mimics hyperglycemia, induced expression of microRNA 221 (miR-221) but reduced expression of c-kit, the receptor for stem cell factor in human umbilical vein endothelial cells (HUVECs). In addition, high glucose treatment impaired endothelial cell migration. Incubation with the antisense miR-221 oligonucleotide AMO-221 reduced expression of miR-221 and restored c-kit protein expression in HUVECs treated with high levels of glucose. Furthermore, AMO-221 treatment abolished the inhibitory effect of high glucose exposure on HUVECs transmigration. Thus, under hyperglycemic conditions, miR-221 is induced in HUVECs, which consequently triggers inhibition of c-kit and impairment of HUVECs migration. These findings suggest that manipulation of the miR-221-c-kit pathway may offer a novel strategy for treatment of vascular dysfunction in diabetic patients.
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