Ki11502 inhibits proliferation of a variety of human leukemia cells: 3[H]-thymidine uptake study. Cells (5 × 105/mL) were plated in 96-well plates and cultured with various concentrations of Ki11502 (0.01 nM to 5 μM). After 2 days, proliferation was measured by 3[H]-thymidine uptake study. Results represent the mean plus or minus SD of 3 experiments performed in triplicate.