Publication Date:
2011-11-15
Description:
So far, two genes associated with familial melanoma have been identified, accounting for a minority of genetic risk in families. Mutations in CDKN2A account for approximately 40% of familial cases, and predisposing mutations in CDK4 have been reported in a very small number of melanoma kindreds. Here we report the whole-genome sequencing of probands from several melanoma families, which we performed in order to identify other genes associated with familial melanoma. We identify one individual carrying a novel germline variant (coding DNA sequence c.G1075A; protein sequence p.E318K; rs149617956) in the melanoma-lineage-specific oncogene microphthalmia-associated transcription factor (MITF). Although the variant co-segregated with melanoma in some but not all cases in the family, linkage analysis of 31 families subsequently identified to carry the variant generated a log of odds (lod) score of 2.7 under a dominant model, indicating E318K as a possible intermediate risk variant. Consistent with this, the E318K variant was significantly associated with melanoma in a large Australian case-control sample. Likewise, it was similarly associated in an independent case-control sample from the United Kingdom. In the Australian sample, the variant allele was significantly over-represented in cases with a family history of melanoma, multiple primary melanomas, or both. The variant allele was also associated with increased naevus count and non-blue eye colour. Functional analysis of E318K showed that MITF encoded by the variant allele had impaired sumoylation and differentially regulated several MITF targets. These data indicate that MITF is a melanoma-predisposition gene and highlight the utility of whole-genome sequencing to identify novel rare variants associated with disease susceptibility.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3266855/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3266855/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yokoyama, Satoru -- Woods, Susan L -- Boyle, Glen M -- Aoude, Lauren G -- MacGregor, Stuart -- Zismann, Victoria -- Gartside, Michael -- Cust, Anne E -- Haq, Rizwan -- Harland, Mark -- Taylor, John C -- Duffy, David L -- Holohan, Kelly -- Dutton-Regester, Ken -- Palmer, Jane M -- Bonazzi, Vanessa -- Stark, Mitchell S -- Symmons, Judith -- Law, Matthew H -- Schmidt, Christopher -- Lanagan, Cathy -- O'Connor, Linda -- Holland, Elizabeth A -- Schmid, Helen -- Maskiell, Judith A -- Jetann, Jodie -- Ferguson, Megan -- Jenkins, Mark A -- Kefford, Richard F -- Giles, Graham G -- Armstrong, Bruce K -- Aitken, Joanne F -- Hopper, John L -- Whiteman, David C -- Pharoah, Paul D -- Easton, Douglas F -- Dunning, Alison M -- Newton-Bishop, Julia A -- Montgomery, Grant W -- Martin, Nicholas G -- Mann, Graham J -- Bishop, D Timothy -- Tsao, Hensin -- Trent, Jeffrey M -- Fisher, David E -- Hayward, Nicholas K -- Brown, Kevin M -- 10118/Cancer Research UK/United Kingdom -- 10589/Cancer Research UK/United Kingdom -- AR043369-14/AR/NIAMS NIH HHS/ -- C490/A11021/Cancer Research UK/United Kingdom -- C588/A10589/Cancer Research UK/United Kingdom -- C588/A4994/Cancer Research UK/United Kingdom -- C8197/A10123/Cancer Research UK/United Kingdom -- C8216/A6129/Cancer Research UK/United Kingdom -- CA88363/CA/NCI NIH HHS/ -- K24CA149202/CA/NCI NIH HHS/ -- P50CA9368/CA/NCI NIH HHS/ -- R01 AR043369/AR/NIAMS NIH HHS/ -- R01 CA-83115-01A2/CA/NCI NIH HHS/ -- R01 CA088363/CA/NCI NIH HHS/ -- R01 CA088363-09/CA/NCI NIH HHS/ -- R01 CA83115/CA/NCI NIH HHS/ -- England -- Nature. 2011 Nov 13;480(7375):99-103. doi: 10.1038/nature10630.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Dermatology, Cutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Massachusetts 02114, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22080950" target="_blank"〉PubMed〈/a〉
Keywords:
Adult
;
Aged
;
Aged, 80 and over
;
Female
;
Gene Expression Regulation, Neoplastic
;
*Genetic Predisposition to Disease
;
Humans
;
Male
;
Melanoma/*genetics
;
Microphthalmia-Associated Transcription Factor/*genetics
;
Middle Aged
;
*Mutation
;
Sumoylation/genetics
;
Young Adult
Print ISSN:
0028-0836
Electronic ISSN:
1476-4687
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
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