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Adipose-derived stem cell-derived microvesicle-released miR-210 promoted proliferation, migration and invasion of endothelial cells by regulating RUNX3.


ABSTRACT: The potential mechanism of miRNA released from adipose-derived stem cell (ADSC)-derived micro vesicle (MV) onthe modulation of proliferation, migration and invasion of endothelial cells were explored. In this study, miR-210 level was detected by qT-PCR. Alix, VEGF and RUNX3 expressions were detected by Western blot. The proliferation, migration and invasion of human umbilical vein endothelial cells (HUVECs) were observed by MTT assay and Transwell assay. Luciferase reporter gene assay was conducted to validate the targeting activity of MVs-released miR-210 on RUNX3. We found hypoxia significantly increased the expression of MVs-released miR-210. MVs released from ADSCsin hypoxic group significantly promoted the proliferation, migration and invasion of HUVECs. Overexpression of miR-210 significantly upregulated VEGF expression, and promoted the proliferation, migration and invasion of HUVECs. Besides, RUNX3 was identified as the direct of miR-210 in HUVECs. Overexpression of miR-210 decreased RUNX3 expression and promoted the proliferation, migration and invasion of HUVECs, while overexpression of RUNX3 inhibited these promotion effects. In vivo experiment showed that MVs derived from ADSCs under hypoxia increased miR-210 level and capillary density, and inhibition of miR-210 decreased capillary density. We also found MVs downregulated RUNX3 expression, and inhibition of miR-210 upregulated RUNX3 expression. Therefore, miR-210 released from ADSCs-derived MVs promoted proliferation, migration and invasion of HUVECs by targeting RUNX3, which revealed one of the mechanisms of ADSCs-derived MVs on the promotion of proliferation, migration and invasion of HUVECs. ABBREVIATIONS:ADSC, adipose-derived stem cell; MV, micro vesicle; HUVECs, human umbilical vein endothelial cells; RUNX3, Runtrelatedtranscription factor-3.

SUBMITTER: Zheng Z 

PROVIDER: S-EPMC6103666 | BioStudies | 2018-01-01

REPOSITORIES: biostudies

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