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  • Title: The E-cadherin (CDH1) -160C>A polymorphism associated with gastric cancer among Asians but not Europeans.
    Author: Wang Q, Gu D, Wang M, Zhang Z, Tang J, Chen J.
    Journal: DNA Cell Biol; 2011 Jun; 30(6):395-400. PubMed ID: 21214416.
    Abstract:
    UNLABELLED: E-cadherin (CDH1) is a tumor suppressor gene involved in epithelial cell-cell interactions and plays important roles in the etiology of gastric cancer. Studies reporting conflicting results on the role of -160C>A polymorphism in the CDH1 promoter region on gastric cancer risk led us to perform a meta-analysis to investigate this relationship. Thirteen published case-control studies including 2509 gastric cancer cases and 3687 controls were identified. Odds ratios (ORs) and 95% confidence intervals (CIs) were used to assess the strength of the association. Overall, individuals with the variant genotypes were not associated with a significant gastric cancer risk (AA vs. CC: OR = 1.04, 95% CI: 0.74-1.48; CA vs. CC: 1.02, 0.85-1.21; AA/CA vs. CC: 1.03, 0.86-1.22; AA vs. CA/CC: 1.03, 0.74-1.43). However, in the stratified analysis by ethnicity, significantly decreased gastric cancer risk was found among Asians in dominant model (AA/CA vs. CC: 0.84, 0.72-0.99). Further, when stratified by clinicopathologic characteristics of gastric cancer, no statistically significant result was observed for any analysis. The results suggested that the CDH1 -160C>A polymorphism may contribute to susceptibility to gastric cancer among Asians. Additional well-designed large studies will be required to validate this association in different populations.
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