FIGURE 5.
Cell proliferation properties are different between rat and mouse fibroblast-derived iNPCs. Rat and mouse fibroblasts were transduced with BAMX. iNPCs were isolated when neural precursor-like cell morphology was observed. Rat and mouse fibroblasts were induced to iNPCs in N2 medium containing bFGF, FGF8, LIF, and doxycycline (Dx) or bFGF, EGF, FGF8, LIF, and doxycycline, respectively. Cell cycle properties were analyzed by FACS. Interestingly, rat-derived iNPCs (RiNPCs, red) had higher proliferative properties compared with mouse-derived iNPCs (MiNPCs, blue), as evidenced by relative S phase cell abundance. The S phase percentages are 19.63 ± 3.20% versus 4.53 ± 2.30% for rat and mouse iNPCs, respectively (*, p < 0.05).