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A genome-wide analysis of the response to inhaled β2-agonists in chronic obstructive pulmonary disease
Journal article   Peer reviewed

A genome-wide analysis of the response to inhaled β2-agonists in chronic obstructive pulmonary disease

M Hardin, M H Cho, M-L McDonald, E Wan, D A Lomas, H O Coxson, W MacNee, J Vestbo, J C Yates, A Agusti, …
The pharmacogenomics journal, Vol.16(4), pp.326-335
08/2016
DOI: 10.1038/tpj.2015.65
PMCID: PMC4848212
PMID: 26503814
url
http://nrs.harvard.edu/urn-3:HUL.InstRepos:29002591View
Open Access

Abstract

Short-acting β2-agonist bronchodilators are the most common medications used in treating chronic obstructive pulmonary disease (COPD). Genetic variants determining bronchodilator responsiveness (BDR) in COPD have not been identified. We performed a genome-wide association study (GWAS) of BDR in 5789 current or former smokers with COPD in one African-American and four white populations. BDR was defined as the quantitative spirometric response to inhaled β2-agonists. We combined results in a meta-analysis. In the meta-analysis, single-nucleotide polymorphisms (SNPs) in the genes KCNK1 (P=2.02 × 10(-7)) and KCNJ2 (P=1.79 × 10(-7)) were the top associations with BDR. Among African Americans, SNPs in CDH13 were significantly associated with BDR (P=5.1 × 10(-9)). A nominal association with CDH13 was identified in a gene-based analysis in all subjects. We identified suggestive association with BDR among COPD subjects for variants near two potassium channel genes (KCNK1 and KCNJ2). SNPs in CDH13 were significantly associated with BDR in African Americans.The Pharmacogenomics Journal advance online publication, 27 October 2015; doi:10.1038/tpj.2015.65.
Europe New Zealand North America Phenotype Bronchodilator Agents - therapeutic use Spirometry Humans Middle Aged Male Pulmonary Disease, Chronic Obstructive - physiopathology Adrenergic beta-2 Receptor Agonists - therapeutic use Female Cadherins - genetics Pharmacogenomic Variants - genetics Pulmonary Disease, Chronic Obstructive - genetics Severity of Illness Index Pulmonary Disease, Chronic Obstructive - diagnosis European Continental Ancestry Group - genetics Genome-Wide Association Study Risk Factors African Americans - genetics Potassium Channels, Tandem Pore Domain - genetics Genotype Potassium Channels, Inwardly Rectifying - genetics Treatment Outcome Lung - physiopathology Pharmacogenomic Testing Sarcoglycans - genetics Lung - drug effects Aged Pulmonary Disease, Chronic Obstructive - drug therapy

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