| Literature DB >> 24013639 |
Harm-Jan Westra1, Marjolein J Peters2,3, Tõnu Esko4, Hanieh Yaghootkar5, Claudia Schurmann6, Johannes Kettunen7,8, Mark W Christiansen9, Bruce M Psaty9,10, Samuli Ripatti7,8,11, Alexander Teumer6, Timothy M Frayling5, Andres Metspalu4, Joyce B J van Meurs2,3, Lude Franke1, Benjamin P Fairfax12,13, Katharina Schramm14,15, Joseph E Powell16,17, Alexandra Zhernakova1, Daria V Zhernakova1, Jan H Veldink18, Leonard H Van den Berg18, Juha Karjalainen1, Sebo Withoff1, André G Uitterlinden2,3,19, Albert Hofman3,19, Fernando Rivadeneira2,3,19, Peter A C 't Hoen20, Eva Reinmaa4, Krista Fischer4, Mari Nelis4, Lili Milani4, David Melzer21, Luigi Ferrucci22, Andrew B Singleton23, Dena G Hernandez23,24, Michael A Nalls23, Georg Homuth6, Matthias Nauck25, Dörte Radke26, Uwe Völker6, Markus Perola4,8, Veikko Salomaa8, Jennifer Brody9, Astrid Suchy-Dicey27, Sina A Gharib28, Daniel A Enquobahrie27, Thomas Lumley29, Grant W Montgomery30, Seiko Makino12, Holger Prokisch14,15, Christian Herder31, Michael Roden31,32, Harald Grallert33, Thomas Meitinger14,15,34, Konstantin Strauch35,36, Yang Li37, Ritsert C Jansen37, Peter M Visscher16,17, Julian C Knight12.
Abstract
Identifying the downstream effects of disease-associated SNPs is challenging. To help overcome this problem, we performed expression quantitative trait locus (eQTL) meta-analysis in non-transformed peripheral blood samples from 5,311 individuals with replication in 2,775 individuals. We identified and replicated trans eQTLs for 233 SNPs (reflecting 103 independent loci) that were previously associated with complex traits at genome-wide significance. Some of these SNPs affect multiple genes in trans that are known to be altered in individuals with disease: rs4917014, previously associated with systemic lupus erythematosus (SLE), altered gene expression of C1QB and five type I interferon response genes, both hallmarks of SLE. DeepSAGE RNA sequencing showed that rs4917014 strongly alters the 3' UTR levels of IKZF1 in cis, and chromatin immunoprecipitation and sequencing analysis of the trans-regulated genes implicated IKZF1 as the causal gene. Variants associated with cholesterol metabolism and type 1 diabetes showed similar phenomena, indicating that large-scale eQTL mapping provides insight into the downstream effects of many trait-associated variants.Entities:
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Year: 2013 PMID: 24013639 PMCID: PMC3991562 DOI: 10.1038/ng.2756
Source DB: PubMed Journal: Nat Genet ISSN: 1061-4036 Impact factor: 38.330