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Replication study of PLCE1 and C20orf54 polymorphism and risk of esophageal cancer in a Chinese population

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Abstract

Esophageal cancer is one of the most aggressive cancers in the world. Recent large-scale genome-wide association studies (GWAS) reported that functional genetic variations in the phospholipase C epsilon gene (PLCE1) were strongly associated with risk of esophageal squamous cell carcinoma (ESCC) and gastric cardia adenocarcinoma (GCA) in Chinese population. For C20orf54 rs13042395 genotype and risk of esophageal cancer, the results were inconsistent. We conducted a replication case–control study to evaluate the genetic effects of these two functional single nucleotide polymorphisms (SNPs) on the development of esophageal cancer. A total of 380 cases and 380 controls were recruited for this study. The genotypes were determined by matrix assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-ToF MS). The variant alleles of the functional polymorphism, PLCE1 rs2274223 SNP was associated with the increased risk of esophageal cancer [adjusted odds ratio (OR) = 1.95, 95 % confidence interval (CI) = 1.05–3.59 for PLCE1 rs2274223 GG vs. AA]. However, there was no significant association between the C20orf54 rs13042395 genotype and esophageal cancer risk (adjusted OR = 0.99, 95 % CI = 0.63–1.57 for C20orf54 rs13042395 TT vs. CC). Stratified analyses indicated a significantly increased risk of esophageal cancer associated with the PLCE1 rs2274223 AG genotype was more evident among females, younger patients and never drinkers, compared with the PLCE1 rs2274223 AA genotypes. Stratified analyses also indicated a significantly increased risk of esophageal cancer associated with the PLCE1 rs2274223 GG genotype was more evident among never smokers and never drinkers compared with the PLCE1 rs2274223 AA genotypes. These findings indicated that functional polymorphisms PLCE1 rs2274223 might contribute to esophageal cancer susceptibility.

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Abbreviations

CI:

Confidential interval

GWAS:

Genome-wide association study

LD:

Linkage disequilibrium

OR:

Odds ratio

SNPs:

Single nucleotide polymorphisms

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Acknowledgments

This study was supported in part by National Natural Science Foundation of China (81101889) and Social Development Foundation of Zhenjiang (SH2010017).

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Authors and Affiliations

  1. Department of Cardiothorac Surgery, Affiliated People’s Hospital of Jiangsu University, Zhenjiang, 212000, China

    Haiyong Gu, Guowen Ding, Chao Liu & Suocheng Chen

  2. Department of Thoracic & Cardiac Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China

    Yijang Chen

  3. Department of General Surgery, Affiliated People’s Hospital of Jiangsu University, Zhenjiang, 212000, China

    Wenbo Zhang & Pengcheng Jiang

Authors
  1. Haiyong Gu
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  2. Guowen Ding
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  3. Wenbo Zhang
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  4. Chao Liu
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  5. Yijang Chen
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  6. Suocheng Chen
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  7. Pengcheng Jiang
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Correspondence to Suocheng Chen or Pengcheng Jiang.

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Haiyong Gu and Guowen Ding contributed equally to this work.

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Gu, H., Ding, G., Zhang, W. et al. Replication study of PLCE1 and C20orf54 polymorphism and risk of esophageal cancer in a Chinese population. Mol Biol Rep 39, 9105–9111 (2012). https://doi.org/10.1007/s11033-012-1782-x

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  • DOI: https://doi.org/10.1007/s11033-012-1782-x

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