Effect of ionomycin on SLF plus blocker-induced cell death. 32D-Kit (▪, •) or 32D-Kit-bcl-2 (□, ○) cells were incubated for 18 hours with 5 μmol/L econazole plus varying amounts of ionomycin in the presence of either SLF (circles) or IL-3 (squares). The proportion of dead cells was determined by Trypan Blue exclusion.