Common genes underlying asthma and COPD? Genome-wide analysis on the Dutch hypothesis.
Common genes underlying asthma and COPD? Genome-wide analysis on the Dutch hypothesis.
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DOI:
10.1183/09031936.00001914
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发表时间:
2014-10
期刊:
影响因子:
--
通讯作者:
Postma DS
中科院分区:
文献类型:
--
作者:
Smolonska J;Koppelman GH;Wijmenga C;Vonk JM;Zanen P;Bruinenberg M;Curjuric I;Imboden M;Thun GA;Franke L;Probst-Hensch NM;Nürnberg P;Riemersma RA;van Schayck CP;Loth DW;Brusselle GG;Stricker BH;Hofman A;Uitterlinden AG;Lahousse L;London SJ;Loehr LR;Manichaikul A;Barr RG;Donohue KM;Rich SS;Pare P;Bossé Y;Hao K;van den Berge M;Groen HJ;Lammers JW;Mali W;Boezen HM;Postma DS
Asthma and chronic obstructive pulmonary disease (COPD) are thought to share a genetic background (“Dutch hypothesis”). We investigated whether asthma and COPD have common underlying genetic factors, performing genome-wide association studies for both asthma and COPD and combining the results in meta-analyses. Three loci showed potential involvement in both diseases: chr2p24.3, chr5q23.1 and chr13q14.2, containing DDX1, COMMD10 (both participating in the NFκβ pathway) and GNG5P5, respectively. SNP rs9534578 in GNG5P5 reached genome-wide significance after first stage replication (p=9.96·*10−9). The second stage replication in seven independent cohorts provided no significant replication. eQTL analysis in blood and lung on the top 20 associated SNPs identified two SNPs in COMMD10 influencing gene expression. Inflammatory processes differ in asthma and COPD and are mediated by NFκβ, which could be driven by the same underlying genes, COMMD10 and DDX1. None of the SNPs reached genome-wide significance. Our eQTL studies support a functional role of two COMMD10 SNPs, since they influence gene expression in both blood cells and lung tissue. Our findings either suggest that there is no common genetic component in asthma and COPD or, alternatively, different environmental factors, like lifestyle and occupation in different countries and continents may have obscured the genetic common contribution.
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3.3
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