Down-regulation of miR-556-3p inhibits hemangioma cell proliferation and promotes apoptosis by targeting VEGFC

Wen Jin, Liang Chen, Fengyun Gao, Mei Yang, Yan Liu, Bo Wang


The purpose of this study was to determine the effect of microRNA (miR)-556-3p on cell proliferation and apoptosis of hemangioma-derived endothelial cells (HemECs).  qRT-PCR was used to compare the expressions of miR-556-3p in HemECs and normal cells. The target gene was identified using dual-luciferase reporter assay. Cell proliferation was measured with MTT assay, while western blotting was used to assay VEGFC expression levels. Apoptosis was assayed with FITC Annexin V Apoptosis assay kit. miR-556-3p was overexpressed in HemECs. Transfection with miR-556-3p inhibitor resulted in decreased proliferation of HemECs (p<0.05). The expression of the target gene of miR-556-3pi.e. VEGFC was upregulated when miR-556-3p inhibitor was transfected. The transfection also resulted in increased apoptosis. In HemECs, miR-556-3p is overexpressed and VEGFC expression is low. Thus, miR-556-3p or VEGFC might be potential targets for treatment of angiosarcoma.


Angiosarcoma; HemECs; miR-556-3p; VEGFC; Proliferation; Apoptosis.

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