Epigenetics, Vitamin C, and Abnormal Blood Cell Formation – Vitamin C in Patients With Low-Risk Myeloid Malignancies

BACKGROUND Recent investigations have shown that mutations in epigenetic regulators are common, both in the apparently normal hematopoiesis of the elderly and in patients (pts) with myeloid cancers. It was long anticipated that DNA methylation was a permanent silencing mark, but with the discovery of the ten eleven translocation (TET) enzymes it became clear that active demethylation occurs. The initial steps in this process are catalyzed by TET enzymes, which are, however, frequently mutated and methylated in hematological cancers. The Jumonji enzymes, which catalyze histone demethylation, are also aberrantly regulated in hematological cancers.

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