Abstract
Pulmonary surfactant is a lipoprotein synthesized and secreted by alveolar type II cells in lung. We evaluated the associations between 200,139 single nucleotide polymorphisms (SNPs) of 40 surfactant-related genes and lung cancer risk using genotyped data from two independent lung cancer genome-wide association studies. Discovery data included 18,082 cases and 13,780 controls of European ancestry. Replication data included 1,914 cases and 3,065 controls of European descent. Using multivariate logistic regression, we found novel SNPs in surfactant-related genes CTSH [rs34577742 C > T, odds ratio (OR) = 0.90, 95% confidence interval (CI) = 0.89-0.93, P = 7.64 × 10-9] and SFTA2 (rs3095153 G > A, OR = 1.16, 95% CI = 1.10-1.21, P = 1.27 × 10-9) associated with overall lung cancer in the discovery data and validated in an independent replication data - CTSH (rs34577742 C > T, OR = 0.88, 95% CI = 0.80-0.96, P = 5.76 × 10-3) and SFTA2 (rs3095153 G > A, OR = 1.14, 95% CI = 1.01-1.28, P = 3.25 × 10-2). Among ever smokers, we found SNPs in CTSH (rs34577742 C > T, OR = 0.89, 95% CI = 0.85-0.92, P = 1.94 × 10-7) and SFTA2 (rs3095152 G > A, OR = 1.20, 95% CI = 1.14-1.27, P = 4.25 × 10-11) associated with overall lung cancer in the discovery data and validated in the replication data - CTSH (rs34577742 C > T, OR = 0.88, 95% CI = 0.79-0.97, P = 1.64 × 10-2) and SFTA2 (rs3095152 G > A, OR = 1.15, 95% CI = 1.01-1.30, P = 3.81 × 10-2). Subsequent transcriptome-wide association study using expression weights from a lung expression quantitative trait loci study revealed genes most strongly associated with lung cancer are CTSH (PTWAS = 2.44 × 10-4) and SFTA2 (PTWAS = 2.32 × 10-6).
| Original language | English |
|---|---|
| Pages (from-to) | 2842-2855 |
| Number of pages | 14 |
| Journal | Human Molecular Genetics |
| Volume | 32 |
| Issue number | 18 |
| DOIs | |
| State | Published - Sep 15 2023 |
Bibliographical note
Publisher Copyright:© 2023 The Author(s). Published by Oxford University Press. All rights reserved.
Funding
National Institute of Health (NIH), National Library of Medicine (NLM) Institute research grant T32LM012204, NIH research grant 5U01CA209414, National Cancer Institute (NCI) grant U19CA203654 and the Cancer Prevention Research Institute of Texas (CPRIT) RR170048. NCI U19CA203654 and CPRIT RR170048 funded the design, data collection, analysis and interpretation of the study. NIH-NLM T32LM012204 funded the analysis and interpretation of the data and in writing the manuscript. NIH 5U01CA209414 funded the data collection and interpretation of the data analyses.
| Funders | Funder number |
|---|---|
| National Institutes of Health (NIH) | |
| National Childhood Cancer Registry – National Cancer Institute | U19CA203654 |
| National Childhood Cancer Registry – National Cancer Institute | |
| U.S. National Library of Medicine | 5U01CA209414, T32LM012204 |
| U.S. National Library of Medicine | |
| Cancer Prevention and Research Institute of Texas | RR170048 |
| Cancer Prevention and Research Institute of Texas |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
ASJC Scopus subject areas
- Molecular Biology
- Genetics
- Genetics(clinical)
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