Abstract
It has been reported that tumor suppressor gene p53 regulates vascular endothelial growth factor (VEGF) expression, but the relation between them in endometrial carcinoma remains unclear. We investigated VEGF expression in 11 endometrial carcinoma cell lines and the effect of p53 gene transfection on VEGF expression in the p53-mutated endometrial carcinoma cell line, HEC-50B. Immunoblotting for detecting VEGF, p53, and β-actin was performed. Wild type p53 gene was transfected using the SuperFect method. The mean VEGF value of 0.8 ± 0.3 ( n = 6) in p53 wild-type group was significantly lower than the 1.6 ± 0.8 ( n = 5) that was found in the p53 mutant group ( P < 0.05). Levels of VEGF in the culture medium were measured by enzyme immunoassay (EIA). VEGF levels in the p53 gene-transfected HEC-50B cells and the conditioned medium were decreased at 48 h after p53 gene transfection. VEGF expression was downregulated by p53 in endometrial carcinoma cells.
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