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Title

Cancer Genes Hypermethylated in Human Embryonic Stem Cells

AuthorsCalvanese, Vincenzo; Horrillo, Angélica ; Hmadcha, Abdelkrim ; Fraga, Mario F.
Issue Date29-Sep-2008
PublisherPublic Library of Science
CitationPLoS ONE 3(9): e3294 (2008)
AbstractDevelopmental genes are silenced in embryonic stem cells by a bivalent histone-based chromatin mark. It has been proposed that this mark also confers a predisposition to aberrant DNA promoter hypermethylation of tumor suppressor genes (TSGs) in cancer. We report here that silencing of a significant proportion of these TSGs in human embryonic and adult stem cells is associated with promoter DNA hypermethylation. Our results indicate a role for DNA methylation in the control of gene expression in human stem cells and suggest that, for genes repressed by promoter hypermethylation in stem cells in vivo, the aberrant process in cancer could be understood as a defect in establishing an unmethylated promoter during differentiation, rather than as an anomalous process of de novo hypermethylation.
DescriptionVicenzo Calvanese et al...
Publisher version (URL)http://dx.doi.org/10.1371/journal.pone.0003294
URIhttp://hdl.handle.net/10261/44179
DOI10.1371/journal.pone.0003294
ISSN1932-6203
Appears in Collections:(CABIMER) Artículos
(CNB) Artículos
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