miR-487b promotes human umbilical vein endothelial cell proliferation, migration, invasion and tube formation through regulating THBS1

In this study, we found miR-487b was up-regulated in the plasma of ischemic stroke patients. Further, over-expression of miR-487b enhanced cell proliferation, migration, invasion and tube formation in human umbilical vein endothelial cells. Using bioinformatic analysis, we found a putative binding site of miR-487b in the 3′ untranslated regions of Thrombospondin 1 mRNA, an endogenous inhibitor of angiogenesis. This direct binding was confirmed by luciferase assay. These results demonstrate that miR-487b regulates angiogenesis by directly targeting THBS1 in HUVECs, indicating that miR-487b may contribute to angiogenesis and the functional recovery from ischemic stroke. miR-487b could represent a potential therapeutic option for neurovascular disease.
Source: Neuroscience Letters - Category: Neuroscience Source Type: research