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Molecular Medicine Reports
Article . 2018 . Peer-reviewed
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MicroRNA‑424 suppresses the proliferation of hemangioma‑derived endothelial cells by targeting VEGFR‑2

Authors: Zhewei, Fei; Mingke, Qiu; Xianqin, Qi; Yuxin, Dai; Shuqing, Wang; Zhiwei, Quan; Yingbin, Liu; +1 Authors

MicroRNA‑424 suppresses the proliferation of hemangioma‑derived endothelial cells by targeting VEGFR‑2

Abstract

Hemangioma (HA) is a type of benign tumor common in infancy. The main feature of HA is the abnormal proliferation of vascular endothelial cells. To date, the pathogenesis of HA remains unclear. Fully understanding the process of HA tumorigenesis is essential for developing novel treatment for HAs. Dysregulation of microRNAs (miRNAs/miR) has been reported to be involved in the development of various diseases, including HA. In the present study, the expression of miR‑424 decreased in HA‑derived endothelial cells (HemECs). To elucidate the role of miR‑424 in HAs development, the present study overexpressed or inhibited miR‑424 in HemECs, revealing that miR‑424 overexpression significantly inhibited HemEC growth and promoted apoptosis, while the downregulation of miR‑424 promoted cell growth and inhibited cell apoptosis. To elucidate the underlying mechanism, bioinformatic analyses were performed, the result of which demonstrated that the 3'‑untranslated region of vascular endothelial growth factor receptor 2 (VEGFR‑2) may be a target of miR‑424. The result of a dual luciferase reporter assay confirmed that the expression of VEGFR‑2 was inhibited by miR‑424. In addition, it was revealed that the hyper‑phosphorylation of protein kinase B (AKT) and extracellular signal‑regulated kinase (ERK) in HemECs, and the restoration of miR‑424 markedly inhibited the activation of AKT and ERK. In conclusion, these results indicated that miR‑424 may target VEGFR‑2 and inhibit HemECs growth, and that low expression of miR‑424 in HemECs may lead to an increase in cell growth and a decrease in cell apoptosis. Thus, it was proposed that miR‑424 may serve as a tumor suppressor in HemECs, and that VEGFR‑2 may be a potential tumor suppressive target in HemECs and for the treatment of HA.

Related Organizations
Keywords

Base Sequence, MAP Kinase Signaling System, Down-Regulation, Endothelial Cells, Apoptosis, Vascular Endothelial Growth Factor Receptor-2, Gene Expression Regulation, Neoplastic, MicroRNAs, Humans, Phosphorylation, Hemangioma, Proto-Oncogene Proteins c-akt, Cell Proliferation

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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    3
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
3
Average
Average
Average
bronze