Genome-wide association analysis identifies three psoriasis susceptibility loci
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Open Access
- 17 October 2010
- journal article
- research article
- Published by Springer Science and Business Media LLC in Nature Genetics
- Vol. 42 (11), 1000-1004
- https://doi.org/10.1038/ng.693
Abstract
James Elder and colleagues report meta-analyses of two psoriasis genome-wide association studies with replication in additional cohorts. They make use of imputation using both the HapMap and initial 1000 Genomes Project datasets and identify three new psoriasis susceptibility loci. We carried out a meta-analysis of two recent psoriasis genome-wide association studies1,2 with a combined discovery sample of 1,831 affected individuals (cases) and 2,546 controls. One hundred and two loci selected based on P value rankings were followed up in a three-stage replication study including 4,064 cases and 4,685 controls from Michigan, Toronto, Newfoundland and Germany. In the combined meta-analysis, we identified three new susceptibility loci, including one at NOS2 (rs4795067, combined P = 4 × 10−11), one at FBXL19 (rs10782001, combined P = 9 × 10−10) and one near PSMA6-NFKBIA (rs12586317, combined P = 2 × 10−8). All three loci were also associated with psoriatic arthritis (rs4795067, combined P = 1 × 10−5; rs10782001, combined P = 4 × 10−8; and rs12586317, combined P = 6 × 10−5) and purely cutaneous psoriasis (rs4795067, combined P = 1 × 10−8; rs10782001, combined P = 2 × 10−6; and rs12586317, combined P = 1 × 10−6). We also replicated a recently identified3 association signal near RNF114 (rs495337, combined P = 2 × 10−7).Keywords
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