6533b861fe1ef96bd12c4a64
RESEARCH PRODUCT
IBD risk loci are enriched in multigenic regulatory modules encompassing putative causative genes
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AdultMaleMultifactorial InheritanceQUANTITATIVE TRAIT LOCUSGenotypeSEQUENCING DATAQuantitative Trait LociSUSCEPTIBILITYPolymorphism Single NucleotideArticleCohort StudiesCODING VARIANTSCrohn Disease80 and overJournal ArticleMedicine and Health SciencesLOCUSHumansGenetic Predisposition to DiseasePolymorphismGENOME-WIDE ASSOCIATIONGenetic Association StudiesAgedAged 80 and overScience & TechnologyAdult; Aged; Aged 80 and over; Cohort Studies; Crohn Disease; Female; Gene Expression Profiling; Genetic Association Studies; Genetic Predisposition to Disease; Genotype; Humans; Inflammatory Bowel Diseases; Male; Middle Aged; Polymorphism Single Nucleotide; Quantitative Trait Loci; Sequence Analysis DNA; Multifactorial InheritanceGene Expression ProfilingCOMPLEX TRAITSBiology and Life SciencesSequence Analysis DNASingle NucleotideDNAMiddle AgedInflammatory Bowel DiseasesCROHNS-DISEASEMultidisciplinary SciencesQUANTITATIVE TRAITRARE VARIANTSScience & Technology - Other TopicsFemaleLOW-FREQUENCYSequence AnalysisINFLAMMATORY-BOWEL-DISEASEdescription
GWAS have identified >200 risk loci for Inflammatory Bowel Disease (IBD). The majority of disease associations are known to be driven by regulatory variants. To identify the putative causative genes that are perturbed by these variants, we generate a large transcriptome data set (nine disease-relevant cell types) and identify 23,650 cis-eQTL. We show that these are determined by ∼9720 regulatory modules, of which ∼3000 operate in multiple tissues and ∼970 on multiple genes. We identify regulatory modules that drive the disease association for 63 of the 200 risk loci, and show that these are enriched in multigenic modules. Based on these analyses, we resequence 45 of the corresponding 100 candidate genes in 6600 Crohn disease (CD) cases and 5500 controls, and show with burden tests that they include likely causative genes. Our analyses indicate that ≥10-fold larger sample sizes will be required to demonstrate the causality of individual genes using this approach.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-06-21 |