Morphology of 32D-Kit cells incubated with factor and Ca²⁺ influx blockers. 32D-Kit cells were incubated for 18 hours with (A) SLF alone, (B) SLF + 8 μmol/L econazole, (C) IL-3 alone, or (D) IL-3 + 8 μmol/L econazole. (E) Cells were incubated with no added factor.