Abstract
CCAAT/enhancer binding protein alpha is one of the crucial transcription factors for myeloid cell development that has been found to be involved in hematopoietic differentiation and leukemiogenesis. Recently, epigenetic regulation of CEBPA expression through DNA methylation has been demonstrated in leukemia. The aim of this study was to investigate the methylation status of CEBPA gene in chronic myeloid leukemia (CML) patients. The methylation status of CEBPA promoter was studied in 100 patients with CML and 98 normal healthy individuals from Hyderabad, India, using methylation-specific polymerase chain reaction. The aberrant methylation of CEBPA gene promoter was found in 32 of the 100 CML cases. A highly significant association was found between the frequency of CEBPA gene promoter hypermethylation and the CML stages (P = 0.017), but association with respect to age and gender of the patient was not found. The results suggest that aberrant methylation in the CpG island of the promoter region of this gene might be a common event in CML, and systemic expression studies will be needed to unfold the role of CEBPA promoter methylation in the development, progression, and prognosis of CML.
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