Figure 1.

Growth factor treatment schedules designed for chondrogenic differentiation of adipose-derived mesenchymal stem cells. Schematic diagram of the five differentiation scheme groups. Triplicate samples were set up for each time point of marker expression analysis (0, 5, 9, 12, 19, 26, 33 and 40 days) and duplicates for each histology analysis timepoint (12, 19, 33 and 40 days). At day 9, cells were transferred from the monolayer to the biphasic scaffold. IGF, insulin-like growth factor; FGF, fibroblast growth factor.