Introduction: Vascular endothelial growth factors (VEGFs) play a central role in angiogenesis and consequently, in various steps of ovarian carcinogenesis. Gene polymorphisms within the VEGF system have revealed a correlation with prognosis in some malignancies. The aim of the present study was to examine the possible importance of 2 VEGF polymorphisms and VEGF-A expression in ovarian cancer.
Methods: We investigated 2 single nucleotide polymorphisms VEGF +405G/C and VEGF −460C/T by polymerase chain reaction and also analyzed VEGF-A expression by immunohistochemistry in 159 women with ovarian cancer.
Results: Vascular endothelial growth factor-A expression revealed a significant correlation with survival in a Cox proportional hazards regression model (P = 0.012). Germline polymorphisms were not correlated with clinicopathological parameters such as stage, type, and histology. Heterozygous genotype in VEGF +405G/C predicted a better survival compared with homozygous genotypes (P = 0.034), and the heterozygous genotype in VEGF −460C/T pointed to the same direction. A multivariate analysis also indicated that heterozygosity of either of the 2 polymorphisms held independent prognostic significance (P = 0.001).
Conclusions: Vascular endothelial growth factor polymorphisms +405G/C and VEGF expression seem to have independent prognostic importance.
- Ovarian cancer
- VEGF polymorphisms
- VEGF-A expression
Statistics from Altmetric.com
Conflicts of Interest: The authors declare that there are no conflicts of interest.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.