Hsa-miR-34b/c rs4938723 T>C and hsa-miR-423 rs6505162 C>A polymorphisms are associated with the risk of esophageal cancer in a Chinese population

PLoS One. 2013 Nov 18;8(11):e80570. doi: 10.1371/journal.pone.0080570. eCollection 2013.

Abstract

Esophageal cancer is the eighth most common cancer and sixth leading cause of cancer associated death worldwide. Besides environmental risk factors, genetic factors might play an important role in the esophageal cancer carcinogenesis. We conducted a hospital based case-control study to evaluate the genetic susceptibility of functional single nucleotide polymorphisms (SNPs) in the microRNAs on the development of esophageal cancer. A total of 629 esophageal squamous cell carcinoma (ESCC) cases and 686 controls were recruited for this study. The hsa-miR-34b/c rs4938723 T>C, pri-miR-124-1 rs531564 C>G, pre-miR-125a rs12975333 G>T and hsa-miR-423 rs6505162 C>A genotypes were determined using Ligation Detection Reaction (LDR) method. Our results demonstrated that hsa-miR-34b/c rs4938723 CC genotype had a decreased risk of ESCC. The association was evident among patients who never drinking. Hsa-miR-423 rs6505162 C>A might associated with a significantly increased risk of ESCC in patients who smoking. These findings indicated that functional polymorphisms hsa-miR-34b/c rs4938723 T>C and hsa-miR-423 rs6505162 C>A might alter individual susceptibility to ESCC. However, our results were obtained with a limited sample size. Future larger studies with other ethnic populations are required to confirm current findings.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Alleles
  • Asian People / genetics*
  • Carcinoma, Squamous Cell / genetics
  • Case-Control Studies
  • China
  • Esophageal Neoplasms / genetics*
  • Esophageal Squamous Cell Carcinoma
  • Female
  • Genetic Predisposition to Disease*
  • Genotype
  • Humans
  • Male
  • MicroRNAs / genetics*
  • Middle Aged
  • Polymorphism, Single Nucleotide*
  • Risk

Substances

  • MIRN34 microRNA, human
  • MicroRNAs

Grants and funding

This study was supported in part by National Natural Science Foundation of China (81101889, 81000028), Jiangsu Province Natural Science Foundation (BK2010333,BK2011481), Social Development Foundation of Zhenjiang (SH2010017) and Changzhou Young Talents and Science-Technology Foundation of Health Bureau (QN201102). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.