Title : Nicotine-induced vascular endothelial growth factor release via the EGFR-ERK pathway in rat vascular smooth muscle cells.

Pub. Date : 2007 Mar 20

PMID : 17286987






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1 Nicotine-induced vascular endothelial growth factor release via the EGFR-ERK pathway in rat vascular smooth muscle cells. Nicotine vascular endothelial growth factor A Rattus norvegicus
2 In the present study, we investigated the effects of nicotine, which is one of the important constituents of cigarette smoke, on vascular endothelial growth factor (VEGF) release, in rat VSMC. Nicotine vascular endothelial growth factor A Rattus norvegicus
3 In the present study, we investigated the effects of nicotine, which is one of the important constituents of cigarette smoke, on vascular endothelial growth factor (VEGF) release, in rat VSMC. Nicotine vascular endothelial growth factor A Rattus norvegicus
4 The stimulation of cells with nicotine resulted in a time- and concentration-dependent release of VEGF. Nicotine vascular endothelial growth factor A Rattus norvegicus
5 Hexamethonium, an antagonist of nicotinic acetylcholine receptor (nAChR), inhibited nicotine-induced VEGF release. Nicotine vascular endothelial growth factor A Rattus norvegicus
6 We next investigated the mechanisms by which nicotine induces VEGF release in the cells. Nicotine vascular endothelial growth factor A Rattus norvegicus
7 The nicotine-induced VEGF release was inhibited by treatment with U0126, a selective inhibitor of MEK, which attenuated the nicotine-induced ERK phosphorylation. Nicotine vascular endothelial growth factor A Rattus norvegicus
8 The nicotine-induced VEGF release was inhibited by treatment with U0126, a selective inhibitor of MEK, which attenuated the nicotine-induced ERK phosphorylation. Nicotine vascular endothelial growth factor A Rattus norvegicus
9 Furthermore, AG1478, a selective inhibitor of epidermal growth factor receptor (EGFR) kinase, inhibited nicotine-induced ERK phosphorylation and VEGF release. Nicotine vascular endothelial growth factor A Rattus norvegicus
10 These data suggest that nicotine releases VEGF through nAChR in VSMC. Nicotine vascular endothelial growth factor A Rattus norvegicus
11 Moreover, VEGF release induced by nicotine is mediated by an EGFR-ERK pathway in VSMC. Nicotine vascular endothelial growth factor A Rattus norvegicus