CASP3 polymorphisms and risk of squamous cell carcinoma of the head and neck.


Journal Article

PURPOSE: Caspase-3 plays a central role in executing cell apoptosis and thus in carcinogenesis, but little is known about the role of CASP3 variants in susceptibility to SCCHN. EXPERIMENTAL DESIGN: Genotype and haplotypes of the first intron (rs4647601:G>T and rs4647602:C>A) and 5'-untranslated region (UTR; rs4647603:G>A) of CASP3 (NT_022792.17) were determined for 930 SCCHN patients and 993 cancer-free controls in a U.S. non-Hispanic white population. Odds ratio (OR) and 95% confidence interval (95% CI) were calculated in multivariate logistic regression analysis. RESULTS: We found that the CASP3 rs4647601:TT variant genotype was associated with an increased risk of SCCHN (adjusted OR, 1.32; 95% CI, 1.00-1.73) compared with the GG genotype. This risk was more evident in the subgroups of younger (< or =56 years) subjects, males, and never smokers with a significant trend for increased risk with increased number of variant T allele (P < 0.05 for all). However, these risks were not found for other two SNPs. Furthermore, individuals with two copies of haplotypes TCG or GCA were found to have a significant increased risk of SCCHN (OR, 1.31; 95% CI, 1.07-1.61) compared with the other haplotypes, and this risk was more evident in less advanced diseases (OR, 1.45; 95% CI, 1.11-1.89) than in the advanced diseases (OR, 1.22; 95% CI, 0.96-1.54). CONCLUSIONS: These results suggested that genetic variation in CASP3 may contribute to SCCHN risk. Larger studies are needed to confirm our findings.

Full Text

Duke Authors

Cited Authors

  • Chen, K; Zhao, H; Hu, Z; Wang, L-E; Zhang, W; Sturgis, EM; Wei, Q

Published Date

  • October 1, 2008

Published In

Volume / Issue

  • 14 / 19

Start / End Page

  • 6343 - 6349

PubMed ID

  • 18829519

Pubmed Central ID

  • 18829519

International Standard Serial Number (ISSN)

  • 1078-0432

Digital Object Identifier (DOI)

  • 10.1158/1078-0432.CCR-08-1198


  • eng

Conference Location

  • United States