iPS-HPCs differentiate into multilineage progenitors. (A) To determine the multilineage potential of iPS-HPCs, HPCs were used to form CFUs. The upper panel shows the morphology of the CFUs, and the lower panel shows the CFUs after staining with Giemsa-Wright solution. These CFUs are similar to those formed by human bone marrow stem cells. (B) Relative percentages of CFU-E, -GEMM, -M, -GM, and -G. CFU-G shows the highest frequency. CFU-E and CFU-GEMM showed the lowest frequency (mean ± SD).