We used 1μM dose, which is significantly higher than the IC50 calculated for each inhibitor in FLT3-ITD positive AML cells (MV4-11), but not effective in T cells (T ALL cell lines: MOLT4 and RPMI8402) (Fig. S1), and is still achievable in blood of patients with AML. Here, FLT3 is linked to acute myeloid leukemia.