Fig. 10

Chondrogenic differentiation of hMSCs cultured for 21 days on scaffolds assessed by A immunostaining of aggrecan and collagen II expression, and B western blot analysis of aggrecan, collagen II, ERK and pERK expression (n = 2). The relative expression values are given as the fold change compared to PUS/GM group. *p < 0.05, **p < 0.01 and ***p < 0.001