Frequent genotype changes at -308 of the human tumor necrosis factor-alpha promoter region in human uterine endometrial cancer

Oncol Rep. Mar-Apr 2000;7(2):369-73.

Abstract

This study was designed to test the hypothesis that genotypic changes of tumor necrosis factor alpha (TNF-alpha) promoter region are associated with endometrial cancer. TNF-alpha gene encodes a cytokine involved in angiogenesis and oncogenesis of several cancers. Some uncommon alleles are reported to be associated with increased production of TNF-alpha and the onset of various cancers. Studies of such alleles are lacking in endometrial cancer. In this study, we examined the genetic changes at the polymorphic 3 loci of TNF-alpha promoter regions (-238, -308 and 488) in 41 Japanese patients with uterine endometrial carcinomas (UEC). Nine of 41 UEC samples (22%) had genotype changes from GA to A at -308 promoter region of the TNF-alpha gene. There were no genotype changes at -238 and 488 regions of TNF-alpha in UEC samples. The results of our study demonstrate for the first time that genotype changes from GA to A in UEC patients. We conclude that the genotype changes at -308 promoter region of TNF-alpha may play an essential role in the malignant transformation of endometrial cells.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Cell Transformation, Neoplastic
  • Endometrial Neoplasms / etiology
  • Endometrial Neoplasms / genetics*
  • Female
  • Gene Frequency
  • Genetic Predisposition to Disease
  • Humans
  • Promoter Regions, Genetic / genetics
  • Tumor Necrosis Factor-alpha / genetics*

Substances

  • Tumor Necrosis Factor-alpha