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Epigenetic Stem Cell Signature in Cancer
By Trevor | January 2, 2007
Nature Genetics has published a brief communication from Marth et. al on the epigenetic stem cell signature in cancer:
- Embryonic stem cells rely on Polycomb group proteins to reversibly repress genes required for differentiation. We report that stem cell Polycomb group targets are up to 12-fold more likely to have cancer-specific promoter DNA hypermethylation than non-targets, supporting a stem cell origin of cancer in which reversible gene repression is replaced by permanent silencing, locking the cell into a perpetual state of self-renewal and thereby predisposing to subsequent malignant transformation.
Update: There are great summaries and reactions to this letter available at Migrations and Pure Pedantry.
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Topics: cancer, methylation, research articles |
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