A functional polymorphism in the epidermal growth factor gene is associated with risk for glioma in a Chinese population

Genet Test Mol Biomarkers. 2012 May;16(5):449-52. doi: 10.1089/gtmb.2011.0258. Epub 2011 Nov 22.

Abstract

Epidermal growth factor (EGF) plays a key role in survival of neural and glial precursor cells. A single nucleotide polymorphism of the EGF gene +61G/A in the 5'-untranslated region has been reported to be associated with susceptibility to glioma. The purpose of this study was to investigate the potential association between EGF +61G/A and brain glioma in a Chinese population. A case-control study involving 180 patients with glioma and 360 controls was done. Polymerase chain reaction restriction fragment-length polymorphism assay was used to analyze the EGF +61G/A genotypes. Patients with glioma had a significantly higher frequency of AA genotype (odds ratio, 2.25; 95% confidence interval, 1.20, 4.21; p=0.01] than controls. When stratified by histologic features and World Health Organization grade of glioma, distribution of each genotype did not significantly differ. Our data suggested that the EGF +61G AA genotype was associated with a higher glioma risk in a Chinese population. This finding is in contrast with previous studies that reported the G allele as a risk factor for glioma in white patients.

MeSH terms

  • Adult
  • Asian People / genetics*
  • Brain Neoplasms / genetics*
  • Brain Neoplasms / pathology
  • Case-Control Studies
  • Epidermal Growth Factor / genetics*
  • Epidermal Growth Factor / metabolism
  • Female
  • Gene Frequency
  • Genetic Predisposition to Disease*
  • Genotype
  • Glioma / genetics*
  • Glioma / pathology
  • Humans
  • Male
  • Middle Aged
  • Polymerase Chain Reaction
  • Polymorphism, Restriction Fragment Length
  • Polymorphism, Single Nucleotide*
  • Risk Factors

Substances

  • Epidermal Growth Factor