Aim: To investigate the association of Caveolin-1 (Cav-1) polymorphisms with colorectal cancer (CRC) risk in a central Taiwanese population.
Methods: Three hundred and sixty-two patients with colorectal cancer and the same number of recruited age- and gender-matched healthy controls were genotyped. And only those matches with all single nucleotide polymorphisms data (case/control = 362/362) were selected for final analyzing.
Results: There were significant differences between CRC and control groups in the distributions of their genotypes (P = 1.6 × 10(-12) and 3.0 × 10(-4)) and allelic frequencies (P = 2.3 × 10(-13) and 4.0 × 10(-5)) in the Cav-1 G14713A (rs3807987) and T29107A (rs7804372) polymorphisms respectively. As for the haplotype analysis, those who had GG/AT or GG/AA at Cav-1 G14713A/T29107A showed a 0.68-fold (95% CI: 0.48-0.98) decreased risk of CRC compared to those with GG/TT, while those of any other combinations were of increased risk. There were joint effects of Cav-1 G14713A and T29107A genotype with smoking status on individual CRC susceptibility.
Conclusion: This is the first report providing evidence of Cav-1 being involved in CRC and it may be novel useful genomic markers for early detection of CRC.
Keywords: Carcinogenesis; Caveolin-1; Colorectal cancer; Polymorphism; Smoking.