Association of EGFR Gene Polymorphism with Glioma Susceptibility in Turkish Population

Year 2023, , 54 - 58, 11.05.2023

Gozde Ozcan , Fatma Tuba Akdeniz , Seda Güleç , Zerrin Barut , Deryanaz Billur , Turgay İsbir , Cumhur Kaan Yaltırık

https://doi.org/10.26650/experimed.1232534

Abstract

Objective: Gliomas are devastating adult brain tumors of unknown etiology, occupying 8 out of 10 primary brain tumors. Epidermal growth factor receptor (EGFR) as a tyrosine kinase family member is encoded by the EGFR gene located in chromosome 7p12-13. Various studies have identified numerous SNPs, including those in the EGFR gene, as linked to gliomas. The objective of the investigation was to determine whether the genotype and allele frequencies of the EGFR may have a role in glioma susceptibility.
Materials and Methods: To examine the association of EGFR SNP rs1468727 with glioma susceptibility in a case-control study from Türkiye (34 cases, 36 controls), genotyping and statistical analyses were performed by using real-time-polymerase chain reaction (RT-PCR) and SPSS version 25.0, respectively.
Results: A significant relationship was found between the study groups EGFR SNP rs1468727 genotypes (p = 0.028). The CC genotype frequency was significantly greater in the control group compared to the glioma group (p=0.005). When compared with the control group, the frequency of mutant type T allele carriers was significantly higher in glioma patients (p=0.012).
Conclusion: As a result of the preliminary findings, having the mutant T allele may increase risk by 3.36 times, whereas having the ancestral homozygote CC genotype lowers the risk for glioma in Turkish population.

Keywords

Glioma, EGFR Gene, Variation, SNP

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