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- W2016751433 abstract "MicroRNAs have been proposed as novel regulators of vascular inflammation and dysfunction. This study aimed to evaluate the role of miR-149 in regulating the expression of key molecules associated with TNFα-induced endothelial activation. miR-149 was selected by in silico analysis and microRNA target prediction. Endothelial dysfunction was induced by TNFα treatment in Eahy926 endothelial cells and HUVEC. miR-149 level was evaluated by quantitative real time-polymerase chain reaction (RT-qPCR). Metalloproteinase-9 (MMP-9) was measured by zymography, Inducible Nitric Oxide Synthase (iNOS) by immunoblotting, Interleukin-6 (IL-6) and Interleukin-8 (IL-8) by ELISA. miR-149 regulatory effect was evaluated by gain-of-function technique upon miR-149 mimics transfection. TNFα down-modulated miR-149 level in Eahy926 and HUVEC. This effect was significantly abolished in Eahy926 by treatment with p38MAPK inhibitor. miR-149 mimic transfection counteracted the TNFα-induced expression of MMP-9, iNOS and IL-6. No effect was detected on IL-8 expression. Our results suggest that miR-149 represents an important new regulator of endothelial function through negative regulation of molecules associated with TNFα-induced endothelial dysfunction." @default.
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- W2016751433 date "2014-01-01" @default.
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- W2016751433 title "TNFα induces the expression of genes associated with endothelial dysfunction through p38MAPK-mediated down-regulation of miR-149" @default.
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- W2016751433 doi "https://doi.org/10.1016/j.bbrc.2013.11.092" @default.
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