Fig. 2

Characterization of the growth potential of NCMs and RPE cells. Cpd versus cultured days of a NCMs from 7 donors and b RPE cells from 4 donors, from day of isolation to end passage where proliferation ceased, observed by significant cell detachment. Cpd of all characterized c NCMs (n = 18) and d RPE cells (n = 9) are shown as the mean ± SD. e Cpd of NCMs significantly correlated to donor age (P = 0.0303). f Cpd of RPE cells did not significantly correlate to donor age (P > 0.05). g Pigment and morphology change of NCMs and RPE cells over 2 months. Cells eventually stained positive (blue) for β-galactosidase. Scale bars = 100 μm. d, days