@article {6092, title = {Genome-wide association studies identify CHRNA5/3 and HTR4 in the development of airflow obstruction.}, journal = {Am J Respir Crit Care Med}, volume = {186}, year = {2012}, month = {2012 Oct 01}, pages = {622-32}, abstract = {

RATIONALE: Genome-wide association studies (GWAS) have identified loci influencing lung function, but fewer genes influencing chronic obstructive pulmonary disease (COPD) are known.

OBJECTIVES: Perform meta-analyses of GWAS for airflow obstruction, a key pathophysiologic characteristic of COPD assessed by spirometry, in population-based cohorts examining all participants, ever smokers, never smokers, asthma-free participants, and more severe cases.

METHODS: Fifteen cohorts were studied for discovery (3,368 affected; 29,507 unaffected), and a population-based family study and a meta-analysis of case-control studies were used for replication and regional follow-up (3,837 cases; 4,479 control subjects). Airflow obstruction was defined as FEV(1) and its ratio to FVC (FEV(1)/FVC) both less than their respective lower limits of normal as determined by published reference equations.

MEASUREMENTS AND MAIN RESULTS: The discovery meta-analyses identified one region on chromosome 15q25.1 meeting genome-wide significance in ever smokers that includes AGPHD1, IREB2, and CHRNA5/CHRNA3 genes. The region was also modestly associated among never smokers. Gene expression studies confirmed the presence of CHRNA5/3 in lung, airway smooth muscle, and bronchial epithelial cells. A single-nucleotide polymorphism in HTR4, a gene previously related to FEV(1)/FVC, achieved genome-wide statistical significance in combined meta-analysis. Top single-nucleotide polymorphisms in ADAM19, RARB, PPAP2B, and ADAMTS19 were nominally replicated in the COPD meta-analysis.

CONCLUSIONS: These results suggest an important role for the CHRNA5/3 region as a genetic risk factor for airflow obstruction that may be independent of smoking and implicate the HTR4 gene in the etiology of airflow obstruction.

}, keywords = {Aged, Female, Forced Expiratory Volume, Genome-Wide Association Study, Humans, Male, Middle Aged, Nerve Tissue Proteins, Polymorphism, Single Nucleotide, Pulmonary Disease, Chronic Obstructive, Receptors, Nicotinic, Receptors, Serotonin, 5-HT4, Smoking, Vital Capacity}, issn = {1535-4970}, doi = {10.1164/rccm.201202-0366OC}, author = {Wilk, Jemma B and Shrine, Nick R G and Loehr, Laura R and Zhao, Jing Hua and Manichaikul, Ani and Lopez, Lorna M and Smith, Albert Vernon and Heckbert, Susan R and Smolonska, Joanna and Tang, Wenbo and Loth, Daan W and Curjuric, Ivan and Hui, Jennie and Cho, Michael H and Latourelle, Jeanne C and Henry, Amanda P and Aldrich, Melinda and Bakke, Per and Beaty, Terri H and Bentley, Amy R and Borecki, Ingrid B and Brusselle, Guy G and Burkart, Kristin M and Chen, Ting-Hsu and Couper, David and Crapo, James D and Davies, Gail and Dupuis, Jos{\'e}e and Franceschini, Nora and Gulsvik, Amund and Hancock, Dana B and Harris, Tamara B and Hofman, Albert and Imboden, Medea and James, Alan L and Khaw, Kay-Tee and Lahousse, Lies and Launer, Lenore J and Litonjua, Augusto and Liu, Yongmei and Lohman, Kurt K and Lomas, David A and Lumley, Thomas and Marciante, Kristin D and McArdle, Wendy L and Meibohm, Bernd and Morrison, Alanna C and Musk, Arthur W and Myers, Richard H and North, Kari E and Postma, Dirkje S and Psaty, Bruce M and Rich, Stephen S and Rivadeneira, Fernando and Rochat, Thierry and Rotter, Jerome I and Soler Artigas, Maria and Starr, John M and Uitterlinden, Andr{\'e} G and Wareham, Nicholas J and Wijmenga, Cisca and Zanen, Pieter and Province, Michael A and Silverman, Edwin K and Deary, Ian J and Palmer, Lyle J and Cassano, Patricia A and Gudnason, Vilmundur and Barr, R Graham and Loos, Ruth J F and Strachan, David P and London, Stephanie J and Boezen, H Marike and Probst-Hensch, Nicole and Gharib, Sina A and Hall, Ian P and O{\textquoteright}Connor, George T and Tobin, Martin D and Stricker, Bruno H} } @article {6068, title = {Genome-wide study identifies two loci associated with lung function decline in mild to moderate COPD.}, journal = {Hum Genet}, volume = {132}, year = {2013}, month = {2013 Jan}, pages = {79-90}, abstract = {

Accelerated lung function decline is a key COPD phenotype; however, its genetic control remains largely unknown. We performed a genome-wide association study using the Illumina Human660W-Quad v.1_A BeadChip. Generalized estimation equations were used to assess genetic contributions to lung function decline over a 5-year period in 4,048 European American Lung Health Study participants with largely mild COPD. Genotype imputation was performed using reference HapMap II data. To validate regions meeting genome-wide significance, replication of top SNPs was attempted in independent cohorts. Three genes (TMEM26, ANK3 and FOXA1) within the regions of interest were selected for tissue expression studies using immunohistochemistry. Two intergenic SNPs (rs10761570, rs7911302) on chromosome 10 and one SNP on chromosome 14 (rs177852) met genome-wide significance after Bonferroni. Further support for the chromosome 10 region was obtained by imputation, the most significantly associated imputed SNPs (rs10761571, rs7896712) being flanked by observed markers rs10761570 and rs7911302. Results were not replicated in four general population cohorts or a smaller cohort of subjects with moderate to severe COPD; however, we show novel expression of genes near regions of significantly associated SNPS, including TMEM26 and FOXA1 in airway epithelium and lung parenchyma, and ANK3 in alveolar macrophages. Levels of expression were associated with lung function and COPD status. We identified two novel regions associated with lung function decline in mild COPD. Genes within these regions were expressed in relevant lung cells and their expression related to airflow limitation suggesting they may represent novel candidate genes for COPD susceptibility.

}, keywords = {Adult, Ankyrins, Chromosomes, Human, Pair 10, Chromosomes, Human, Pair 14, Cohort Studies, Female, Genome-Wide Association Study, Hepatocyte Nuclear Factor 3-alpha, Humans, Linkage Disequilibrium, Lung, Male, Membrane Proteins, Middle Aged, Polymorphism, Single Nucleotide, Pulmonary Disease, Chronic Obstructive}, issn = {1432-1203}, doi = {10.1007/s00439-012-1219-6}, author = {Hansel, Nadia N and Ruczinski, Ingo and Rafaels, Nicholas and Sin, Don D and Daley, Denise and Malinina, Alla and Huang, Lili and Sandford, Andrew and Murray, Tanda and Kim, Yoonhee and Vergara, Candelaria and Heckbert, Susan R and Psaty, Bruce M and Li, Guo and Elliott, W Mark and Aminuddin, Farzian and Dupuis, Jos{\'e}e and O{\textquoteright}Connor, George T and Doheny, Kimberly and Scott, Alan F and Boezen, H Marike and Postma, Dirkje S and Smolonska, Joanna and Zanen, Pieter and Mohamed Hoesein, Firdaus A and de Koning, Harry J and Crystal, Ronald G and Tanaka, Toshiko and Ferrucci, Luigi and Silverman, Edwin and Wan, Emily and Vestbo, Jorgen and Lomas, David A and Connett, John and Wise, Robert A and Neptune, Enid R and Mathias, Rasika A and Par{\'e}, Peter D and Beaty, Terri H and Barnes, Kathleen C} } @article {7345, title = {Genetic loci associated with chronic obstructive pulmonary disease overlap with loci for lung function and pulmonary fibrosis.}, journal = {Nat Genet}, volume = {49}, year = {2017}, month = {2017 Mar}, pages = {426-432}, abstract = {

Chronic obstructive pulmonary disease (COPD) is a leading cause of mortality worldwide. We performed a genetic association study in 15,256 cases and 47,936 controls, with replication of select top results (P < 5 {\texttimes} 10(-6)) in 9,498 cases and 9,748 controls. In the combined meta-analysis, we identified 22 loci associated at genome-wide significance, including 13 new associations with COPD. Nine of these 13 loci have been associated with lung function in general population samples, while 4 (EEFSEC, DSP, MTCL1, and SFTPD) are new. We noted two loci shared with pulmonary fibrosis (FAM13A and DSP) but that had opposite risk alleles for COPD. None of our loci overlapped with genome-wide associations for asthma, although one locus has been implicated in joint susceptibility to asthma and obesity. We also identified genetic correlation between COPD and asthma. Our findings highlight new loci associated with COPD, demonstrate the importance of specific loci associated with lung function to COPD, and identify potential regions of genetic overlap between COPD and other respiratory diseases.

}, issn = {1546-1718}, doi = {10.1038/ng.3752}, author = {Hobbs, Brian D and de Jong, Kim and Lamontagne, Maxime and Boss{\'e}, Yohan and Shrine, Nick and Artigas, Maria Soler and Wain, Louise V and Hall, Ian P and Jackson, Victoria E and Wyss, Annah B and London, Stephanie J and North, Kari E and Franceschini, Nora and Strachan, David P and Beaty, Terri H and Hokanson, John E and Crapo, James D and Castaldi, Peter J and Chase, Robert P and Bartz, Traci M and Heckbert, Susan R and Psaty, Bruce M and Gharib, Sina A and Zanen, Pieter and Lammers, Jan W and Oudkerk, Matthijs and Groen, H J and Locantore, Nicholas and Tal-Singer, Ruth and Rennard, Stephen I and Vestbo, J{\o}rgen and Timens, Wim and Par{\'e}, Peter D and Latourelle, Jeanne C and Dupuis, Jos{\'e}e and O{\textquoteright}Connor, George T and Wilk, Jemma B and Kim, Woo Jin and Lee, Mi Kyeong and Oh, Yeon-Mok and Vonk, Judith M and de Koning, Harry J and Leng, Shuguang and Belinsky, Steven A and Tesfaigzi, Yohannes and Manichaikul, Ani and Wang, Xin-Qun and Rich, Stephen S and Barr, R Graham and Sparrow, David and Litonjua, Augusto A and Bakke, Per and Gulsvik, Amund and Lahousse, Lies and Brusselle, Guy G and Stricker, Bruno H and Uitterlinden, Andr{\'e} G and Ampleford, Elizabeth J and Bleecker, Eugene R and Woodruff, Prescott G and Meyers, Deborah A and Qiao, Dandi and Lomas, David A and Yim, Jae-Joon and Kim, Deog Kyeom and Hawrylkiewicz, Iwona and Sliwinski, Pawel and Hardin, Megan and Fingerlin, Tasha E and Schwartz, David A and Postma, Dirkje S and MacNee, William and Tobin, Martin D and Silverman, Edwin K and Boezen, H Marike and Cho, Michael H} }