Fig. 1.

The proliferation ability of hFCPCs. Proliferation ability of hFCPCs from three different donors was examined by the doubling time and cumulative cell numbers. hFCPCs were cultured in α-MEM with 10% FBS or in SFM-XF for up to 39 passages. A The doubling time was calculated by the formula: DT = {(T − T0) log2}/(logN − logN0) where DT is the doubling time, T − T0 is the culture period, N is the cell number at the time of assessment, and N0 is an initial cell number which was 5 × 10⁵ cells. B The cumulative cell number was calculated in each donor cells as the number of passages increased