Lung Cancer Risk in Never-Smokers of European Descent is Associated With Genetic Variation in the 5<sub>p</sub>15.33 <i>TERT-CLPTM1Ll</i> Region



Hung, Rayjean J, Spitz, Margaret R, Houlston, Richard S, Schwartz, Ann G, Field, John K ORCID: 0000-0003-3951-6365, Ying, Jun, Li, Yafang, Han, Younghun, Ji, Xuemei, Chen, Wei
et al (show 56 more authors) (2019) Lung Cancer Risk in Never-Smokers of European Descent is Associated With Genetic Variation in the 5<sub>p</sub>15.33 <i>TERT-CLPTM1Ll</i> Region. JOURNAL OF THORACIC ONCOLOGY, 14 (8). pp. 1360-1369.

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Abstract

<h4>Introduction</h4>Inherited susceptibility to lung cancer risk in never-smokers is poorly understood. The major reason for this gap in knowledge is that this disease is relatively uncommon (except in Asians), making it difficult to assemble an adequate study sample. In this study we conducted a genome-wide association study on the largest, to date, set of European-descent never-smokers with lung cancer.<h4>Methods</h4>We conducted a two-phase (discovery and replication) genome-wide association study in never-smokers of European descent. We further augmented the sample by performing a meta-analysis with never-smokers from the recent OncoArray study, which resulted in a total of 3636 cases and 6295 controls. We also compare our findings with those in smokers with lung cancer.<h4>Results</h4>We detected three genome-wide statistically significant single nucleotide polymorphisms rs31490 (odds ratio [OR]: 0.769, 95% confidence interval [CI]: 0.722-0.820; p value 5.31 × 10<sup>-16</sup>), rs380286 (OR: 0.770, 95% CI: 0.723-0.820; p value 4.32 × 10<sup>-16</sup>), and rs4975616 (OR: 0.778, 95% CI: 0.730-0.829; p value 1.04 × 10<sup>-14</sup>). All three mapped to Chromosome 5 CLPTM1L-TERT region, previously shown to be associated with lung cancer risk in smokers and in never-smoker Asian women, and risk of other cancers including breast, ovarian, colorectal, and prostate.<h4>Conclusions</h4>We found that genetic susceptibility to lung cancer in never-smokers is associated to genetic variants with pan-cancer risk effects. The comparison with smokers shows that top variants previously shown to be associated with lung cancer risk only confer risk in the presence of tobacco exposure, underscoring the importance of gene-environment interactions in the etiology of this disease.

Item Type: Article
Uncontrolled Keywords: Lung cancer, Never smokers, Genome-wide association study, Genetic susceptibility
Depositing User: Symplectic Admin
Date Deposited: 29 Apr 2019 08:30
Last Modified: 12 Oct 2023 12:03
DOI: 10.1016/j.jtho.2019.04.008
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3038870