A Genome-Wide Association Study Identifies the Skin Color Genes IRF4, MC1R, ASIP, and BNC2 Influencing Facial Pigmented Spots.

Leonie C Jacobs, Merel A Hamer, David A Gunn, Joris Deelen, Jaspal S Lall, Diana van Heemst, Hae-Won Uh, Albert Hofman, André G Uitterlinden, Christopher E M Griffiths, Marian Beekman, P Eline Slagboom, Manfred Kayser, Fan Liu, Tamar Nijsten

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Facial pigmented spots are a common skin aging feature, but genetic predisposition has yet to be thoroughly investigated. We conducted a genome-wide association study for pigmented spots in 2,844 Dutch Europeans from the Rotterdam Study (mean age: 66.9±8.0 years; 47% male). Using semi-automated image analysis of high-resolution digital facial photographs, facial pigmented spots were quantified as the percentage of affected skin area (mean women: 2.0% ±0.9, men: 0.9% ±0.6). We identified genome-wide significant association with pigmented spots at three genetic loci: IRF4 (rs12203592, P=1.8 × 10(-27)), MC1R (compound heterozygosity score, P=2.3 × 10(-24)), and RALY/ASIP (rs6059655, P=1.9 × 10(-9)). In addition, after adjustment for the other three top-associated loci the BNC2 locus demonstrated significant association (rs62543565, P=2.3 × 10(-8)). The association signals observed at all four loci were successfully replicated (P
    Original languageEnglish
    JournalThe Journal of investigative dermatology
    Volume135
    Issue number7
    DOIs
    Publication statusPublished - Jul 2015

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