Genome-wide association study of CNVs in 16,000 cases of eight common diseases and 3,000 shared controls

Wellcome Trust Case Control Consortium (2010) Genome-wide association study of CNVs in 16,000 cases of eight common diseases and 3,000 shared controls. Nature, 464 (7289). pp. 713-20. ISSN 0028-0836

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Abstract

Copy number variants (CNVs) account for a major proportion of human genetic polymorphism and have been predicted to have an important role in genetic susceptibility to common disease. To address this we undertook a large, direct genome-wide study of association between CNVs and eight common human diseases. Using a purpose-designed array we typed approximately 19,000 individuals into distinct copy-number classes at 3,432 polymorphic CNVs, including an estimated approximately 50% of all common CNVs larger than 500 base pairs. We identified several biological artefacts that lead to false-positive associations, including systematic CNV differences between DNAs derived from blood and cell lines. Association testing and follow-up replication analyses confirmed three loci where CNVs were associated with disease-IRGM for Crohn's disease, HLA for Crohn's disease, rheumatoid arthritis and type 1 diabetes, and TSPAN8 for type 2 diabetes-although in each case the locus had previously been identified in single nucleotide polymorphism (SNP)-based studies, reflecting our observation that most common CNVs that are well-typed on our array are well tagged by SNPs and so have been indirectly explored through SNP studies. We conclude that common CNVs that can be typed on existing platforms are unlikely to contribute greatly to the genetic basis of common human diseases.

Item Type:	Article
Uncontrolled Keywords:	arthritis, rheumatoid,case-control studies,crohn disease,dna copy number variations,diabetes mellitus,disease,gene frequency,genetic predisposition to disease,genome-wide association study,humans,nucleic acid hybridization,oligonucleotide array sequence analysis,pilot projects,polymorphism, single nucleotide,quality control,sdg 3 - good health and well-being ,/dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_being
Faculty \ School:	Faculty of Medicine and Health Sciences > Norwich Medical School
UEA Research Groups:	Faculty of Medicine and Health Sciences > Research Groups > Gastroenterology and Gut Biology Faculty of Medicine and Health Sciences > Research Groups > Nutrition and Preventive Medicine
Depositing User:	Pure Connector
Date Deposited:	06 Aug 2014 10:40
Last Modified:	03 Nov 2022 15:37
URI:	https://ueaeprints.uea.ac.uk/id/eprint/49774
DOI:	10.1038/nature08979

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