In NK-AML, expression level of 10 genes was extremely increased: HOXA4, HOXA5, HOXA9, HOXB2, HOXB3, HOXB5, HOXB6, and HOXB7, and two members of TALE family, MEIS1 and PBX3. This evidence concerns the gene HOXB5 and acute myeloid leukemia.