Morphology of wild-type WT1-infected 32D clones cultured in IL-3– or G-CSF–containing medium. Cells maintained in rmIL-3 (50 U/mL)–containing medium (top) were washed for deprivation of IL-3, seeded in G-CSF (20 ng/mL)–containing medium, and cultured for 10 days (bottom). Cytospin cells were stained with May-Grünwald-Giemsa stain solution.