Differential effects of KIT inhibitors on the growth of HMC1.1 and HMC1.2 cells.

Cell proliferation assay shows that incubation of HMC1.1 cells with inhibitors at 0.1 to 1 μM for a 3-day period kills the cells, while treatment of the HMC1.2 cells with inhibitors at 1 to 10 μM only slightly inhibits growth of the cells.