FLT3 and acute myeloid leukemia: Since no AML cells were co-transplanted in these experiments, similar percentages of human CD135+ events were detected in the blood from control animals transplanted with untreated grafts (5.0 ± 3.8%, n = 5/5, endpoint) and mice receiving MAX.16H5 IgG1 pre-incubated grafts (6.7 ± 2.3%, n = 5/5, endpoint) at the end of the experiment as expected (Figures 2A,B,D and Table S1).