Research Article

Immortalizing Mesenchymal Stromal Cells from Aged Donors While Keeping Their Essential Features

Figure 6

Number of generations accumulated by iMSC#6, iMSC#8, iMSC#9, and iMSC#10, calculated as (where Nf is the final cell population, Ni is the number of cells in the inoculum, and log is the natural logarithm), facing days in culture. and value < 0.00005 for all four iMSC line growth curves.