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Leveraging cross-species transcription factor binding site patterns: From diabetes risk loci to disease mechanisms.
Cell 156, 343-358 (2014)
Genome-wide association studies have revealed numerous risk loci associated with diverse diseases. However, identification of disease-causing variants within association loci remains a major challenge. Divergence in gene expression due to cis-regulatory variants in noncoding regions is central to disease susceptibility. We show that integrative computational analysis of phylogenetic conservation with a complexity assessment of co-occurring transcription factor binding sites (TFBS) can identify cis-regulatory variants and elucidate their mechanistic role in disease. Analysis of established type 2 diabetes risk loci revealed a striking clustering of distinct homeobox TFBS. We identified the PRRX1 homeobox factor as a repressor of PPARG2 expression in adipose cells and demonstrate its adverse effect on lipid metabolism and systemic insulin sensitivity, dependent on the rs4684847 risk allele that triggers PRRX1 binding. Thus, cross-species conservation analysis at the level of co-occurring TFBS provides a valuable contribution to the translation of genetic association signals to disease-related molecular mechanisms.
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Publication type
Article: Journal article
Document type
Review
Keywords
Genome-wide Association; Adipose-tissue; Phosphoenolpyruvate Carboxykinase; Insulin Sensitivity; Susceptibility Loci; Epigenomic Analysis; Large-scale; Ppar-gamma; In-vivo; Gene
ISSN (print) / ISBN
0092-8674
e-ISSN
1097-4172
Journal
Cell
Quellenangaben
Volume: 156,
Issue: 1-2,
Pages: 343-358
Publisher
Cell Press
Publishing Place
Cambridge, Mass.
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
CCG Nutrigenomics and Type 2 Diabetes (KKG-KDN)
Institute of Epidemiology II (EPI2)
Institute of Genetic Epidemiology (IGE)
Institute of Stem Cell Research (ISF)
Institute of Human Genetics (IHG)
CF Metabolomics & Proteomics (CF-MPC)
Institute of Bioinformatics and Systems Biology (IBIS)
Institute of Epidemiology (EPI)
Institute of Experimental Genetics (IEG)
Institute of Epidemiology II (EPI2)
Institute of Genetic Epidemiology (IGE)
Institute of Stem Cell Research (ISF)
Institute of Human Genetics (IHG)
CF Metabolomics & Proteomics (CF-MPC)
Institute of Bioinformatics and Systems Biology (IBIS)
Institute of Epidemiology (EPI)
Institute of Experimental Genetics (IEG)