Tiancheng Zhang1, Jing Li1, Tian Xia1, Nan Zhang2, Yaozhou Zhang3, Jian Zhao1. 1. International Joint Cancer Institute, The Second Military Medical University Shanghai, China. 2. Tianjin East Innovation Biotechnology Limited Company Tianjin, China. 3. School of Pharmaceutical Science and Technology, Tianjin University Tianjin, China.
Abstract
AIM: To explore the association between COX-2 polymorphisms and non-small cell lung cancer (NSCLC) susceptibility. METHODS: We collected fasting peripheral venous blood from 60 cases with NSCLC and 62 healthy controls through physical examinations, and applied PCR-RFLP to analyze COX-2 polymorphisms of two groups. RESULTS: With respect to detecting COX-2 rs689466 and rs5275 polymorphisms, the distribution frequency of mutant genotype AA of COX-2 rs689466 in case group was higher than that in control group, which possessed significant difference between two groups (P<0.05). Carriers with AA genotype were 4.05 times at risk of NSCLC than those with GG genotype (P = 0.04, OR=4.05, 95% CI=1.14-14.43). The distribution of mutant genotype CC of COX-2 rs5275 was different between two groups, and carriers with genotype CC were at 5.70 times higher risk of NSCLC than those with genotype TT. After corrected by sex, gender, smoking and drinking factors, AA genotype of COX-2 rs689466 and CC genotype of COX-2 rs5275 still contributed to increased risk of NSCLC (OR=4.22, 95% CI=1.10-16.17, OR=6.95, 95% CI=1.27-38.11). After analyzed of linkage disequilibrium (LD) and haplotypes of alleles in two SNPs, the distribution frequency of A-C haplotype in case group was higher than that in control group, with significant difference between two groups (P<0.05). After corrected by sex, gender, smoking and drinking factors, statistical difference was still found in the total distribution of A-C haplotype between two groups (P=0.03, OR=6.11, 95% CI=1.16-32.2). CONCLUSIONS: COX-2 rs689466 and rs5275 polymorphisms may be related to NSCLC susceptibility. And A-C haplotype might be a susceptibility haplotype for NSCLC.
AIM: To explore the association between COX-2 polymorphisms and non-small cell lung cancer (NSCLC) susceptibility. METHODS: We collected fasting peripheral venous blood from 60 cases with NSCLC and 62 healthy controls through physical examinations, and applied PCR-RFLP to analyze COX-2 polymorphisms of two groups. RESULTS: With respect to detecting COX-2rs689466 and rs5275 polymorphisms, the distribution frequency of mutant genotype AA of COX-2rs689466 in case group was higher than that in control group, which possessed significant difference between two groups (P<0.05). Carriers with AA genotype were 4.05 times at risk of NSCLC than those with GG genotype (P = 0.04, OR=4.05, 95% CI=1.14-14.43). The distribution of mutant genotype CC of COX-2rs5275 was different between two groups, and carriers with genotype CC were at 5.70 times higher risk of NSCLC than those with genotype TT. After corrected by sex, gender, smoking and drinking factors, AA genotype of COX-2rs689466 and CC genotype of COX-2rs5275 still contributed to increased risk of NSCLC (OR=4.22, 95% CI=1.10-16.17, OR=6.95, 95% CI=1.27-38.11). After analyzed of linkage disequilibrium (LD) and haplotypes of alleles in two SNPs, the distribution frequency of A-C haplotype in case group was higher than that in control group, with significant difference between two groups (P<0.05). After corrected by sex, gender, smoking and drinking factors, statistical difference was still found in the total distribution of A-C haplotype between two groups (P=0.03, OR=6.11, 95% CI=1.16-32.2). CONCLUSIONS:COX-2rs689466 and rs5275 polymorphisms may be related to NSCLC susceptibility. And A-C haplotype might be a susceptibility haplotype for NSCLC.
Authors: Daniele Campa; Rayjean J Hung; Dana Mates; David Zaridze; Neonila Szeszenia-Dabrowska; Peter Rudnai; Jolanta Lissowska; Eleonóra Fabiánová; Vladimir Bencko; Lenka Foretova; Vladimir Janout; Paolo Boffetta; Paul Brennan; Federico Canzian Journal: Cancer Epidemiol Biomarkers Prev Date: 2005-02 Impact factor: 4.254
Authors: R J Coffey; C J Hawkey; L Damstrup; R Graves-Deal; V C Daniel; P J Dempsey; R Chinery; S C Kirkland; R N DuBois; T L Jetton; J D Morrow Journal: Proc Natl Acad Sci U S A Date: 1997-01-21 Impact factor: 11.205