Journal of International Oncology ›› 2016, Vol. 43 ›› Issue (8): 597-602.doi: 10.3760/cma.j.issn.1673-422X.2016.08.009

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Association between XPC Lys939Gln(A/C) gene polymorphism and the susceptibility of gastric cancer: a Metaanalysis

Cui Jing, Tan Hui, Jiang Lei, Yuan Wenzhen, Guan Quanlin   

  1. Department of Surgical Oncology, First Hospital of Lanzhou University, Lanzhou 730000, China
  • Online:2016-08-08 Published:2016-07-05
  • Contact: Guan Quanlin, Email: guanquanlin2013@163.com E-mail:guanquanlin2013@163.com
  • Supported by:

    Science and Technology Support Projects of Gansu Province (1504FKCA084); Health Industry Science Foundation of Gansu Province (GSWST2013-16)

Abstract: Objective  To explore the association between Xeroderma pigmentosum complementation C group (XPC) Lys939Gln (A/C) gene polymorphism and the susceptibility of gastric cancer. Methods  By searching PubMed, Cochrane Library, Elsevier, SpringerVerlag, China National Knowledge Infrastructure, Chinese Biomedical Literature Data, VIP Database and Wanfang Database, all eligible casecontrol studies published up to September 2015 were selected and the quality of each article was valuated by two reviewers independently according to the inclusion and exclusion criteria. Meta-analysis was performed by using STATA 12.0 software. Odds ratio (OR) and 95% confidence interval (CI) were calculated. The text was estimated for the subgroup analysis, sensitivity analysis and publication bias test. Results  A  total of 7 casecontrol studies were included, including 2 336 cases with gastric cancer and 3 502 controls. The Metaanalysis showed that compared with the allele A, the allele C increased the risk of gastric cancer (OR=1.09, 95%CI: 1.01-1.18, Z=2.12, P=0.034); compared to the genotype AA, the homozygous model (CC) and dominant model (CC+AC) also increased the risk of gastric cancer (CC vs.AA: OR=1.19, 95%CI: 1.00-1.42, Z=2.00, P=0.046; CC+AC vs.AA: OR=1.12, 95%CI: 1.00-1.25, Z=2.03, P=0.042). The Meta-analysis showed the statistical significance between XPC Lys939Gln (A/C) gene polymorphism and the gastric cancer risk in subgroup of Asian people (C vs.A: OR=1.10, 95%CI: 1.01-1.20, Z=2.28, P=0.023; CC vs.AA: OR=1.21, 95%CI: 1.01-1.46, Z=2.02, P=0.043; CC+AC vs.AA: OR=1.13, 95%CI: 1.01-1.27, Z=2.11, P=0.035) and the source of community in the control group (C vs.A: OR=1.11, 95%CI: 1.01-1.21, Z=2.25, P=0.024; CC vs.AA: OR=1.23, 95%CI: 1.02-1.50, Z=2.12, P=0.034). Conclusion  XPC Lys939Gln(A/C) gene polymorphism may be associated with the susceptibility of gastric cancer, and genotype CC, CC+AC and allele C can increase the risk of gastric cancer.

Key words: Stomach neoplasms, Polymorphism, genetic, Polymorphism, single nucleotide, Meta-analysis, Xeroderma pigmentosum complementation C group