• Medicine · Dec 2014

    CLPTM1L genetic polymorphisms and interaction with smoking and alcohol drinking in lung cancer risk: a case-control study in the Han population from northwest China.

    • Xiaojie Xun, Huijuan Wang, Hua Yang, Hong Wang, Bo Wang, Longli Kang, Tianbo Jin, and Chao Chen.
    • From the School of Life Sciences, Northwest University, Xi'an, China (XX, HJW, HY, TJ, CC); National Engineering Research Center for Miniaturized Detection Systems, Xi'an, China (HJW, HW, BW, TJ, CC); Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Tibet University for Nationalities, Xianyang, Shaanxi, China (TJ, LK).
    • Medicine (Baltimore). 2014 Dec 1; 93 (28): e289e289.

    AbstractGenetic variants of cleft lip and palate trans-membrane 1-like (CLPTM1L) genes in the p15.33 region of chromosome 5 were previously identified to influence susceptibility to lung cancer. We examined the association of single nucleotide polymorphisms (SNPs) in CLPTM1L genes with lung cancer and explored their potential effects on the relationship between environmental risk factors (smoking, drinking) and lung cancer in a Chinese Han population. We genotyped 9 single nucleotide polymorphisms (SNPs) of CLPTM1L in a case-control study with 228 lung cancer cases and 301 controls from northwest China. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated by unconditional logistic regression. We identified that the minor alleles of rs451360, rs402710, and rs31484 in CLPTM1L were associated with a 0.52-fold, 0.76-fold, and 0.70-fold decreased risk of lung cancer in allelic model analysis, respectively. In the genetic model analysis, we found rs402710 and rs401681 were associated with decreased lung cancer risk. Further stratification analysis showed that rs380286 displayed a significantly decreased lung cancer risk (OR=0.65, P=0.041) in the non-drinkers. In addition, Haplotype "GTTATCTGT" was found to be associated with decreased lung cancer risk (OR=0.50, P=0.033). Our results verified that genetic variants of CLPTM1L contribute to lung cancer susceptibility in the northwest Chinese Han population. Additionally, we found that consumption of alcohol may interact with CLPTM1L polymorphisms to contribute to overall lung cancer susceptibility.

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