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- Title
Regulation of vascular endothelial growth factor signaling by miR-200b.
- Authors
Choi, Young-Chul; Yoon, Sena; Jeong, Yongsu; Yoon, Jaeseung; Baek, Kwanghee
- Abstract
Vascular endothelial growth factor (VEGF) signaling plays an important role in angiogenesis. In the VEGF signaling pathway, the key components are VEGF and its receptors, Flt-1 and KDR. In this study, we show that transfection of synthetic miR-200b reduced protein levels of VEGF, Flt-1, and KDR. In A549 cells, miR-200b targeted the predicted binding sites in the 3′-untranslated region (3′-UTR) of VEGF, Flt-1, and KDR as revealed by a luciferase reporter assay. When transfected with miR-200b, the ability of HUVECs to form a capillary tube on Matrigel and VEGF-induced phosphorylation of ERK1/2 were significantly reduced. Taken together, these results suggest that miR-200b negatively regulates VEGF signaling by targeting VEGF and its receptors and that miR-200b may have therapeutic potential as an angiogenesis inhibitor.
- Publication
Molecules & Cells (Springer Nature), 2011, Vol 32, Issue 1, p77
- ISSN
1016-8478
- Publication type
Article
- DOI
10.1007/s10059-011-1042-2