Induction of HGF-responsive CFU-c progenitors from EML cells. EML cells were induced to undergo myeloid differentiation according to the procedures described in Materials and Methods. (A) The total number of GM-CSF–responsive colonies generated from 1 × 10⁵ EML cells cultured in SCF/atRA with or without IL-3. (B) The total number of EPO-responsive colonies generated from 1 × 10⁵ EML cells cultured in SCF/atRA with or without IL-3. (C) The total number of SCF-responsive colonies generated from 1 × 10⁵ EML cells cultured in SCF/atRA with or without IL-3. (▪) SCF + RA + IL-3; (•) SCF + RA.