N-acetyltransferase 2 polymorphisms and risk of esophageal cancer in a Chinese population

PLoS One. 2014 Feb 19;9(2):e87783. doi: 10.1371/journal.pone.0087783. eCollection 2014.

Abstract

Esophageal cancer was the fifth most commonly diagnosed cancer and the fourth leading cause of cancer-related death in China in 2009. Genetic factors might play an important role in the carcinogenesis of esophageal squamous cell carcinoma (ESCC). We conducted a hospital-based case-control study to evaluate ten NAT2 tagging single nucleotide polymorphisms (SNPs) on the risk of ESCC. Six hundred and twenty-nine ESCC cases and 686 controls were recruited. Their genotypes were determined using the ligation detection reaction method. In the single locus analyses, there was a borderline statistically significant difference in genotype frequencies of NAT2 rs1565684 T>C SNP between the cases and the controls (p = 0.057). The NAT2 rs1565684 CC genotype was associated with a borderline significantly increased risk for ESCC (CC vs. TT: adjusted OR = 1.77, 95% CI = 0.97-3.21, p = 0.063 and CC vs. TT/TC: adjusted OR = 1.68, 95% CI = 0.93-3.04, p = 0.085). The association was evident among older patients and patients who never drunk. After the Bonferroni correction, in all comparison models, NAT2 rs1565684 T>C SNP was not associated with ESCC risk (p>0.05). For the other nine NAT2 SNPs, after Bonferroni correction, in all comparison models, the nine SNPs were also not associated with ESCC risk (p>0.05). Thus, nine NAT2 tagging SNPs were not associated with risk of ESCC. NAT2 rs1565684 T>C SNP might play a slight role in ESCC etiology. Additional, larger studies and tissue-specific biological characterization are required to confirm the current findings.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Arylamine N-Acetyltransferase / genetics*
  • Asian People / genetics*
  • Carcinoma, Squamous Cell / enzymology*
  • Carcinoma, Squamous Cell / genetics*
  • Esophageal Neoplasms / enzymology*
  • Esophageal Neoplasms / genetics*
  • Esophageal Squamous Cell Carcinoma
  • Female
  • Genetic Predisposition to Disease / genetics*
  • Humans
  • Male
  • Middle Aged
  • Polymorphism, Single Nucleotide*

Substances

  • Arylamine N-Acetyltransferase
  • NAT2 protein, human

Grants and funding

This study was supported in part by National Natural Science Foundation of China (81370001, 81371927, 81101889, 81000028), Jiangsu Province Natural Science Foundation (BK2010333, BK2011481), Social Development Foundation of Zhenjiang (SH2010017), Changzhou Young Talents and Science-Technology Foundation of Health Bureau (QN201102), Affiliated People's Hospital of Jiangsu University fund (Y200913) and Jiangsu University Clinical medicine science and technology development fund (JLY20120004). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.