A genome-wide association study identifies risk loci for spirometric measures among smokers of European and African ancestry
- PMID: 26634245
- PMCID: PMC4668640
- DOI: 10.1186/s12863-015-0299-4
A genome-wide association study identifies risk loci for spirometric measures among smokers of European and African ancestry
Abstract
Background: Pulmonary function decline is a major contributor to morbidity and mortality among smokers. Post bronchodilator FEV1 and FEV1/FVC ratio are considered the standard assessment of airflow obstruction. We performed a genome-wide association study (GWAS) in 9919 current and former smokers in the COPDGene study (6659 non-Hispanic Whites [NHW] and 3260 African Americans [AA]) to identify associations with spirometric measures (post-bronchodilator FEV1 and FEV1/FVC). We also conducted meta-analysis of FEV1 and FEV1/FVC GWAS in the COPDGene, ECLIPSE, and GenKOLS cohorts (total n = 13,532).
Results: Among NHW in the COPDGene cohort, both measures of pulmonary function were significantly associated with SNPs at the 15q25 locus [containing CHRNA3/5, AGPHD1, IREB2, CHRNB4] (lowest p-value = 2.17 × 10(-11)), and FEV1/FVC was associated with a genomic region on chromosome 4 [upstream of HHIP] (lowest p-value = 5.94 × 10(-10)); both regions have been previously associated with COPD. For the meta-analysis, in addition to confirming associations to the regions near CHRNA3/5 and HHIP, genome-wide significant associations were identified for FEV1 on chromosome 1 [TGFB2] (p-value = 8.99 × 10(-9)), 9 [DBH] (p-value = 9.69 × 10(-9)) and 19 [CYP2A6/7] (p-value = 3.49 × 10(-8)) and for FEV1/FVC on chromosome 1 [TGFB2] (p-value = 8.99 × 10(-9)), 4 [FAM13A] (p-value = 3.88 × 10(-12)), 11 [MMP3/12] (p-value = 3.29 × 10(-10)) and 14 [RIN3] (p-value = 5.64 × 10(-9)).
Conclusions: In a large genome-wide association study of lung function in smokers, we found genome-wide significant associations at several previously described loci with lung function or COPD. We additionally identified a novel genome-wide significant locus with FEV1 on chromosome 9 [DBH] in a meta-analysis of three study populations.
Trial registration: ClinicalTrials.gov NCT00292552 NCT00608764.
Figures
References
-
- Minino A, Xu J, Kochanek K. Deaths: preliminary data for 2008. Natl Vital Stat Rep. 2010;59:1–52. - PubMed
-
- Rabe KF, Hurd S, Anzueto A, Barnes PJ, Buist SA, Calverley P, et al. Global Initiative for Chronic Obstructive Lung Disease. Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease: Gold executive summary. Am J Respir Crit Care Med. 2007;176:532–55. doi: 10.1164/rccm.200703-456SO. - DOI - PubMed
Publication types
MeSH terms
Substances
Associated data
Grants and funding
- R01 HL113264/HL/NHLBI NIH HHS/United States
- R01 HL089897/HL/NHLBI NIH HHS/United States
- P01 HL083069/HL/NHLBI NIH HHS/United States
- K01 HL125858/HL/NHLBI NIH HHS/United States
- R25 ES011080/ES/NIEHS NIH HHS/United States
- T32 ES007142/ES/NIEHS NIH HHS/United States
- K08 HL097029/HL/NHLBI NIH HHS/United States
- U01 HL089897/HL/NHLBI NIH HHS/United States
- R01 HL089856/HL/NHLBI NIH HHS/United States
- U01 HL089856/HL/NHLBI NIH HHS/United States
- P01 HL105339/HL/NHLBI NIH HHS/United States
- R01 HL124233/HL/NHLBI NIH HHS/United States
- K01HL125858/HL/NHLBI NIH HHS/United States
- R01 HL084323/HL/NHLBI NIH HHS/United States
LinkOut - more resources
Full Text Sources
Other Literature Sources
Medical
Miscellaneous
