Genes to Diseases (G2D) Computational Method to Identify Asthma Candidate Genes

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Genes to Diseases (G2D) Computational Method to Identify Asthma Candidate Genes

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Title: Genes to Diseases (G2D) Computational Method to Identify Asthma Candidate Genes
Author: Tremblay, Karine; Lemire, Mathieu; Potvin, Camille; Tremblay, Alexandre; Hudson, Thomas J.; Perez-Iratxeta, Carolina; Andrade-Navarro, Miguel A.; Laprise, Catherine; Hunninghake, Gary Matthew; Raby, Benjamin Alexander

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Citation: Tremblay, Karine, Mathieu Lemire, Camille Potvin, Alexandre Tremblay, Gary M. Hunninghake, Benjamin A. Raby, Thomas J. Hudson, Carolina Perez-Iratxeta, Miguel A. Andrade-Navarro, and Catherine Laprise. 2008. Genes to Diseases (G2D) computational method to identify asthma candidate genes. PLoS ONE 3(8): e2907.
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Abstract: Asthma is a complex trait for which different strategies have been used to identify its environmental and genetic predisposing factors. Here, we describe a novel methodological approach to select candidate genes for asthma genetic association studies. In this regard, the Genes to Diseases (G2D) computational tool has been used in combination with a genome-wide scan performed in a sub-sample of the Saguenay−Lac-St-Jean (SLSJ) asthmatic familial collection (n = 609) to identify candidate genes located in two suggestive loci shown to be linked with asthma (6q26) and atopy (10q26.3), and presenting differential parent-of-origin effects. This approach combined gene selection based on the G2D data mining analysis of the bibliographic and protein public databases, or according to the genes already known to be associated with the same or a similar phenotype. Ten genes (LPA, NOX3, SNX9, VIL2, VIP, ADAM8, DOCK1, FANK1, GPR123 and PTPRE) were selected for a subsequent association study performed in a large SLSJ sample (n = 1167) of individuals tested for asthma and atopy related phenotypes. Single nucleotide polymorphisms (n = 91) within the candidate genes were genotyped and analysed using a family-based association test. The results suggest a protective association to allergic asthma for PTPRE rs7081735 in the SLSJ sample (p = 0.000463; corrected p = 0.0478). This association has not been replicated in the Childhood Asthma Management Program (CAMP) cohort. Sequencing of the regions around rs7081735 revealed additional polymorphisms, but additional genotyping did not yield new associations. These results demonstrate that the G2D tool can be useful in the selection of candidate genes located in chromosomal regions linked to a complex trait.
Published Version: doi://10.1371/journal.pone.0002907
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2488373/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:10230105
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