Association of TNFA (-308G>A) and IL-10 (-819C>T) promoter polymorphisms with risk of cervical cancer

Int J Gynecol Cancer. 2009 Oct;19(7):1190-4. doi: 10.1111/IGC.0b013e3181a3a3af.

Abstract

Etiology of cervical cancer is associated with excessive inflammation mediated tumorigenesis. Pro and anti-inflammatory cytokines (tumor necrosis factor alpha, TNFA and interleukin, IL-10) are involved in fighting against the tumorigenesis. Therefore, the present study was designed to evaluate the association of TNFA (-308G>A) and IL-10 (-819C>T) gene polymorphism with risk of cervical cancer. One hundred fifty histopathologically confirmed patients with cervical cancer and 162 age, ethnically-matched cervical cytology negative healthy controls were genotyped for TNFA (-308 G>A) and IL-10 (-819 C>T) polymorphisms using PCR-RFLP. Individuals with combination of TNFA -308GA+AA genotype and A allele were at elevated risk of cervical cancer (odds ratio (OR) = 2.24; P = 0.018 and OR, 2.05; P = 0.012). Frequency of IL-10 -819CT+TT genotype combination and T allele was slightly higher in cases as compared with controls but difference was not significant (OR = 1.52; P = 0.069 and OR = 1.38; P = 0.051). In association of genotypes with clinical characteristics, presence of TNFA -308GA+AA genotype conferred high risk for the stages (IB) (OR = 2.86, P = 0.039) and stages (III) (OR = 2.52; P = 0.015) of cervical cancer. In contrast, IL-10 -819TT genotype was not associated with higher risk of clinical characteristics of cervical cancer. In conclusion, individuals with TNFA -308*A allele carriers were at significantly higher risk of cervical cancer particularly early (IB) and advanced stages (III). However, IL-10 (-819C>T) polymorphism was not associated with risk of cervical cancer.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Carcinoma / genetics*
  • Carcinoma / pathology
  • DNA Mutational Analysis
  • Environment
  • Female
  • Genetic Linkage
  • Genetic Predisposition to Disease
  • Humans
  • Interleukin-10 / genetics*
  • Middle Aged
  • Neoplasm Staging
  • Polymorphism, Restriction Fragment Length
  • Polymorphism, Single Nucleotide*
  • Promoter Regions, Genetic*
  • Risk Factors
  • Tumor Necrosis Factor-alpha / genetics*
  • Uterine Cervical Neoplasms / genetics*
  • Uterine Cervical Neoplasms / pathology

Substances

  • IL10 protein, human
  • Tumor Necrosis Factor-alpha
  • Interleukin-10