The IL2RA mRNA and its protein CD25 levels were assayed in 54 primary AML BM samples by TaqMan RQ-PCR and FCM respectively, in which the mRNA level was shown as 2−∆Ct of IL2RA gene relative to ABL1 gene and the expression level of CD25 protein was illustrated as percentage in leukemia blast cells. This evidence concerns the gene IL2RA and acute myeloid leukemia.