نوع مقاله : مقاله های پژوهشی
عنوان مقاله English
نویسندگان English
Background: In acute myeloid leukemia (AML), a large number of tumor suppressor genes are silenced through DNA methylation such as CDKN2B and p73. Wnt inhibitory factor 1 (WIF1) and Dickkopf-1 (DKK-1) are negative regulator of the Wnt signaling pathway. In the present study, we studied the methylation status of WIF1 and DKK-1 genes in patients with acute myeloid leukemia.Methods: Blood samples from 120 patients with acute myeloid leukemia and 25 healthy control subjects were taken. Isolated DNA was treated with sodium bisulphite and examined via methylation-specific polymerase chain reaction (MSP) with primers specific for methylated and unmethylated sequences of the WIF1 and DKK-1 genes.Findings: The frequency of aberrant hypermethylation of WIF1 and DKK-1 genes in patients with acute myeloid leukemia was determined 35.0% (42/120) and 28.3% (34/120), respectively. In addition, for all subjects in control group, methylation of WIF1 and DKK-1 genes were negative. Patients with M0 subtype of French-American-British acute myeloid leukemia (FAB-AML) had the highest incidence of hypermethylation of WIF1 (P = 0.003) and DKK-1 (P = 0.005) genes.Conclusion: The present study showed that, like many solid tumors, WIF1 and DKK-1 genes methylation also occurs in acute myeloid leukemia. Therefore, the methylation of these genes may play a role in leukmogenesis initiation.
کلیدواژهها English