Association of Vascular Endothelial Growth Factor Gene Polymorphism With Renal Cell Carcinoma Risk

The conclusion of the relationship between vascular endothelial growth factor gene polymorphism and renal cell carcinoma risk was inconsistent. This study was performed to assess the relationship between vascular endothelial growth factor gene polymorphism and renal cell carcinoma risk using meta-analysis. The association studies were identified from PubMed, Embase, and Web of Science, and eligible studies were included and calculated. Ten studies were included for this meta-analysis. vascular endothelial growth factor (VEGF) +405G > CC allele and GG genotype were associated with renal cell carcinoma risk for overall populations in this meta-analysis (C allele: odds ratio = 1.18, 95% confidence interval: 1.05-1.33, P = .004; CC genotype: odds ratio = 1.20, 95% confidence interval: 0.96-1.50, P = .12; GG genotype: odds ratio = 0.79, 95% confidence interval: 0.67-0.93, P = .004). Furthermore, VEGF +936C>T gene polymorphism and VEGF -2578 C>A gene polymorphism were associated with renal cell carcinoma risk for overall populations (+936C>T: T allele: odds ratio = 1.16, 95% confidence interval: 1.05-1.29, P = .004; TT genotype: odds ratio = 1.25, 95% confidence interval: 1.02-1.52, P = .03; CC genotype: odds ratio = 0.86, 95% confidence interval: 0.75-0.98, P = .03; -2578 C>A: A allele: odds ratio = 1.26, 95% confidence interval: 1.15-1.38, P < .00001; AA genotype: odds ratio = 1.39, 95% confidence interval: 1.16-1.67, P = .0004; CC genotype: odds ratio = 0.75, 95% confidence interval: 0.61-0.92, P = .006). However, VEGF -634G>C, VEGF -460T>C, VEGF -1154 G>A, and VEGF +1612 G>A gene polymorphisms were not associated with renal cell carcinoma risk. In conclusion, VEGF +405G>CC allele and GG genotype, VEGF +936C>T gene polymorphism, and VEGF -2578 C>A gene polymorphism were associated with renal cell carcinoma risk for overall populations. However, more studies should be performed to assess this relationship in the future.