Unknown,Transcriptomics,Genomics,Proteomics

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Distinct Sets of Genetic Alterations in Melanoma


ABSTRACT: We compared genome-wide DNA copy number alterations and mutational status in BRAF and RAS genes of 126 primary melanomas arising in four groups in which UV exposure differ: skin with (n=30), and without chronic sun damage (n=40); palms, soles and subungual (acral) sites (n=36) (which have very little sun exposure); and mucosa (n=20) (no sun exposure).

ORGANISM(S): Homo sapiens

SUBMITTER: P LeBoit 

PROVIDER: E-GEOD-2631 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications


<h4>Background</h4>Exposure to ultraviolet light is a major causative factor in melanoma, although the relationship between risk and exposure is complex. We hypothesized that the clinical heterogeneity is explained by genetically distinct types of melanoma with different susceptibility to ultraviolet light.<h4>Methods</h4>We compared genome-wide alterations in the number of copies of DNA and mutational status of BRAF and N-RAS in 126 melanomas from four groups in which the degree of exposure to  ...[more]

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