Propofol Inhibiting the Expression of VEGF through MAPK/ERK Signal Pathways in Oesophageal Carcinoma Cells EC9706 / 医学研究杂志

ABSTRACT

Objective To investigate the effect of propofol on the expression of VEGF in Oesophageal carcinoma cells EC9706 and its related molecular mechanism.Methods The expression of VEGF in human Oesophageal carcinoma cells EC9706 and normal esophageal epithelium cells HEEC were compared by immunoblotting.EC9706 was treated with different concentrations of propofol (0,2,6,10μg/L).After incubation,the EC9706 cell lines were detected with MTT,flow cytometry,cell invasion and cell scratch tests.The expression of VEGF,and the phosphorylation of p38 (MAPK) and p44/42 (ERK1/2) were detected by qRT-PCR and immunoblotting in each group.Results The expression of VEGF in EC9706 cells was significantly higher than that in HEEC cells.After propofol intervention,the proliferation,migration and invasion of propofol groups were significantly lower than that of Ctrl group,while the apoptotic rate of propofol groups were significantly higher than that of Ctrl group.The expression of VEGF mRNA and protein in propofol groups were significantly lower than that in Ctrl group.The expression and phosphorylation of p38 (MAPK) and p44 / 42 (ERK1 / 2) were inhibited by propofol.Both of these effects were dose-dependent.Conclusion Propofol inhibits the proliferation,invasion and migration of OC cells EC9706 and promotes apoptosis.Its potential mechanism may work by inhibiting the MAPK/ERK signaling pathway,thereby inhibiting VEGF expression.