Four different AML cell lines (HL-60, AML FAB M2; KG-1, AML FAB M0/1; MonoMac-1, AML FAB M5 MLL-AF9 positive; Kasumi-1, AML FAB M2 t(8;21) positive) were treated at different doses of bromocriptine for 48 h. The gene discussed is MLLT3; the disease is acute myeloid leukemia.