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Browsing by Author "Kanetsky, Peter A."
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Item Genome-wide association study in 176,678 Europeans reveals genetic loci for tanning response to sun exposure(Nature Publishing Group, 2018-05-08) Visconti, Alessia; Duffy, David L.; Liu, Fan; Zhu, Gu; Wu, Wenting; Chen, Yan; Hysi, Pirro G.; Zeng, Changqing; Sanna, Marianna; Iles, Mark M.; Kanetsky, Peter A.; Demenais, Florence; Hamer, Merel A.; Uitterlinden, Andre G.; Ikram, M. Arfan; Nijsten, Tamar; Martin, Nicholas G.; Kayser, Manfred; Spector, Tim D.; Han, Jiali; Bataille, Veronique; Falchi, Mario; Epidemiology, School of Public HealthThe skin's tendency to sunburn rather than tan is a major risk factor for skin cancer. Here we report a large genome-wide association study of ease of skin tanning in 176,678 subjects of European ancestry. We identify significant association with tanning ability at 20 loci. We confirm previously identified associations at six of these loci, and report 14 novel loci, of which ten have never been associated with pigmentation-related phenotypes. Our results also suggest that variants at the AHR/AGR3 locus, previously associated with cutaneous malignant melanoma the underlying mechanism of which is poorly understood, might act on disease risk through modulation of tanning ability.Item Identification of a melanoma susceptibility locus and somatic mutation in TET2(Oxford University Press, 2014-09) Song, Fengju; Amos, Christopher I.; Lee, Jeffrey E.; Lian, Christine G.; Fang, Shenying; Liu, Hongliang; MacGregor, Stuart; Iles, Mark M.; Law, Matthew H.; Lindeman, Neil I.; Montgomery, Grant W.; Duffy, David L.; Cust, Anne E.; Jenkins, Mark A.; Whiteman, David C.; Kefford, Richard F.; Giles, Graham G.; Armstrong, Bruce K.; Aitken, Joanne F.; Hopper, John L.; Brown, Kevin M.; Martin, Nicholas G.; Mann, Graham J.; Bishop, D. Timothy; Bishop, Julia A. Newton; Kraft, Peter; Qureshi, Abrar A.; Kanetsky, Peter A.; Hayward, Nicholas K.; Hunter, David J.; Wei, Qingyi; Han, Jiali; Department of Epidemiology, Richard M. Fairbanks School of Public HealthAlthough genetic studies have reported a number of loci associated with melanoma risk, the complex genetic architecture of the disease is not yet fully understood. We sought to identify common genetic variants associated with melanoma risk in a genome-wide association study (GWAS) of 2298 cases and 6654 controls. Thirteen of 15 known loci were replicated with nominal significance. A total of 69 single-nucleotide polymorphisms (SNPs) were selected for in silico replication in two independent melanoma GWAS datasets (a total of 5149 cases and 12 795 controls). Seven novel loci were nominally significantly associated with melanoma risk. These seven SNPs were further genotyped in 234 melanoma cases and 238 controls. The SNP rs4698934 was nominally significantly associated with melanoma risk. The combined odds ratio per T allele = 1.18; 95% confidence interval (1.10-1.25); combined P = 7.70 × 10(-) (7). This SNP is located in the intron of the TET2 gene on chromosome 4q24. In addition, a novel somatic mutation of TET2 was identified by next-generation sequencing in 1 of 22 sporadic melanoma cases. TET2 encodes a member of TET family enzymes that oxidizes 5-methylcytosine to 5-hydroxymethylcytosine (5hmC). It is a putative epigenetic biomarker of melanoma as we previously reported, with observation of reduced TET2 transcriptional expression. This study is the first to implicate TET2 genetic variation and mutation in melanoma.