Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
2138588 | Leukemia Research | 2009 | 7 Pages |
Abstract
We investigated the methylation status of the CCAAT/enhancer binding protein alpha (C/EBPα) promoter region near the transcription start site in acute myelogenous leukemia (AML). In hematopoietic tumor cell lines, CpG island hypermethylation of the proximal C/EBPα promoter region was associated with transcriptional silencing, and treatment with the demethylating agent 5-aza-2′-deoxycytidine resulted in C/EBPα reexpression and promoter demethylation. Aberrant methylation of the C/EBPα promoter region occurred in 10/80 diagnostic AML samples, and there was an inverse correlation between aberrant methylation of C/EBPα and the negative cell cycle regulator p15. Our results provide further evidence for epigenetic dysregulation of C/EBPα in AML.
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Authors
Edgar Jost, Nicole do Ó, Stefan Wilop, James G. Herman, Rainhardt Osieka, Oliver Galm,