Article

Genome-wide association study identifies 12 new susceptibility loci for primary biliary cirrhosis.

Academic Department of Medical Genetics, Cambridge University, Cambridge, UK; Department of Hepatology, Cambridge University Hospitals National Health Service (NHS) Foundation Trust, Cambridge, UK.
Nature Genetics (impact factor: 35.53). 03/2011; 43(4):329-32. DOI:10.1038/ng.789
Source: PubMed

ABSTRACT In addition to the HLA locus, six genetic risk factors for primary biliary cirrhosis (PBC) have been identified in recent genome-wide association studies (GWAS). To identify additional loci, we carried out a GWAS using 1,840 cases from the UK PBC Consortium and 5,163 UK population controls as part of the Wellcome Trust Case Control Consortium 3 (WTCCC3). We followed up 28 loci in an additional UK cohort of 620 PBC cases and 2,514 population controls. We identified 12 new susceptibility loci (at a genome-wide significance level of P < 5 × 10⁻⁸) and replicated all previously associated loci. We identified three further new loci in a meta-analysis of data from our study and previously published GWAS results. New candidate genes include STAT4, DENND1B, CD80, IL7R, CXCR5, TNFRSF1A, CLEC16A and NFKB1. This study has considerably expanded our knowledge of the genetic architecture of PBC.

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Keywords

12 new susceptibility loci
 
2,514 population controls
 
5,163 UK population controls
 
additional UK cohort
 
DENND1B
 
genetic architecture
 
genetic risk factors
 
HLA locus
 
New candidate genes
 
primary biliary cirrhosis
 
recent genome-wide association studies
 
replicated
 
TNFRSF1A
 
UK PBC Consortium
 
Wellcome Trust Case Control Consortium 3