Common variants modify the age of onset for basal cell carcinomas in Gorlin syndrome.
Affiliation
1] Manchester Centre for Genomic Medicine, University of Manchester, Manchester Academic Health Sciences Centre (MAHSC), Manchester, UK [2] Department of Genetic Medicine, Manchester Centre for Genomic Medicine, MAHSC, St Mary's Hospital, Central Manchester University Hospitals NHS Foundation Trust (CMFT), Manchester, UK.Issue Date
2014-08-27
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Gorlin syndrome is an autosomal dominant disorder, characterized by multiple early-onset basal cell carcinomas (BCCs) and jaw keratocysts. Through association studies in cohorts of sporadic BCC, nine genetic variants have previously been identified to increase the risk of BCC. The nine SNPs were genotyped by Taqman allelic discrimination in 125 individuals with Gorlin syndrome. Kaplan-Meier survival curves and Cox proportional-Hazard regression analysis were applied to determine the association between genotypes and age of first BCC in individuals with Gorlin syndrome. The p.(Arg151Cys) variant in MC1R (rs1805007) was associated with an earlier median age of onset of BCC of 27 years (95% CI: 20-34) compared with 34 years (95% CI: 30-40) for wild-type individuals (hazard ratio (HR)=1.64, 95% CI: 1.04-2.58, P=0.034). The risk allele of the variant at the chromosome 5p15 locus encompassing TERT-CLPTM1L (rs401681) was also associated with an earlier median onset of BCC, 31 years (95% CI: 28-37) compared with 41 years (95% CI: 32-48, HR=1.44, 95% CI: 1.08-1.93, P=0.014). In individuals with a risk allele at either rs1805007 or rs401681 the median time to BCC was 31 years of age (95% CI: 28-34) compared with 44 years of age (95% CI: 38-53) in wild-type individuals (HR=2.48, 95% CI: 1.47-4.17, P=0.0002). Our findings may have implications for future personalized risk estimates and BCC screening strategies in individuals with Gorlin syndrome.European Journal of Human Genetics advance online publication, 27 August 2014; doi:10.1038/ejhg.2014.167.Citation
Common variants modify the age of onset for basal cell carcinomas in Gorlin syndrome. 2014: Eur J Hum GenetJournal
European Journal of Human GeneticsDOI
10.1038/ejhg.2014.167PubMed ID
25159867Type
ArticleLanguage
enISSN
1476-5438ae974a485f413a2113503eed53cd6c53
10.1038/ejhg.2014.167
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