Purpose: Glioblastoma (GBM) is the most aggressive primary brain tumor. Vascular endothelial growth factor (VEGF) gene polymorphisms and overexpression are involved in high-grade malignant gliomas. The aim of this study was to assess the distribution of +405C>G VEGF gene polymorphism in patients diagnosed by glioblastoma and to test its association with the overall survival (OS).
Methods: Patients diagnosed for glioblastoma were randomly selected, and follow-up was conducted for a minimum of 36 months. Tissue paraffin embedded GBM samples were subjected for the VEGF polymorphism detection. The associations of the observed genotypes and clinical data were evaluated.
Results: The most frequent single nucleotide polymorphism (SNP) variant was G (72.58%). The GG genotype was proved to have statistically significant longer OS and patient status (alive/dead) compared to CC and CG genotypes (p=0.022 and 0.005, respectively).
Conclusion: Our results indicate that +405C>G VEGF gene polymorphism may be used as prognostic genetic marker of OS in GBM patients.
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