Common genetic variants on 5p15.33 contribute to risk of lung adenocarcinoma in a Chinese population.
Chromosome 5p15.33, containing TERT and CLPTM1L genes, was recently identified as one of the susceptible regions for lung cancer in Caucasian populations. We hypothesized that single-nucleotide polymorphisms (SNPs) identified in this region in Caucasians are also important in the development of lung cancer in Chinese population. To test this hypothesis, we genotyped two most significant SNPs reported in Caucasians, rs2736100A/C and rs402710C/T at 5p15.33, in a case-control study with 1221 non-small cell lung cancer (NSCLC) cases and 1344 cancer-free controls in a Chinese population. We found that rs2736100C allele in TERT gene was associated with a significantly increased risk of NSCLC with adjusted odds ratios of 1.26 [95% confidence interval (CI) = 1.05-1.51] and 1.31 (95% CI = 1.04-1.66) for one or two copies of the variant C allele, respectively. This significant association was more prominent among female (P for heterogeneity: 0.044), non-smokers (P for heterogeneity: 0.054) and/or the subjects with adenocarcinoma (P for heterogeneity: 0.058). However, no significant association was found between rs402710C/T and NSCLC risk. These results suggest that genetic variants in 5p15.33, especially in TERT gene, may also predispose the susceptibility of lung cancer, especially adenocarcinoma, in Chinese population.
Jin
Guangfu
G
Department of Epidemiology and Biostatistics, Cancer Center, Nanjing Medical University, China.
Xu
Lin
L
Shu
Yongqian
Y
Tian
Tian
T
Liang
Jie
J
Xu
Yan
Y
Wang
Furu
F
Chen
Jianjian
J
Dai
Juncheng
J
Hu
Zhibin
Z
Shen
Hongbing
H
D044466:Asian People; D002289:Carcinoma, Non-Small-Cell Lung / Q000235:genetics*; D016022:Case-Control Studies; D002895:Chromosomes, Human, Pair 5 / Q000235:genetics*; D005260:Female; D020022:Genetic Predisposition to Disease; D006801:Humans; D008175:Lung Neoplasms / Q000235:genetics*; D008297:Male; D008565:Membrane Proteins / Q000235:genetics; D008875:Middle Aged; D009363:Neoplasm Proteins / Q000235:genetics; D020641:Polymorphism, Single Nucleotide; D019098:Telomerase / Q000235:genetics
C422445:CLPTM1L protein, human; D008565:Membrane Proteins; D009363:Neoplasm Proteins; C509186:TERT protein, human; D019098:Telomerase