Fig. 4

Chondrogenic potential of hASCs and hSSCs in the supplementation with BMP2 and/or TGFβ1. A, C Macroscopic view and histological images for chondrogenic pellet of cultured with BMP2, TGFβ1, or BMP2+ TGFβ1 (B + T) for 28 days. Representative data from six donors are shown. Scale bars = 1 mm (low magnified histology shown as inbox) and 500 μm (macro view and histological images). B, D Quantification of histological images. Data are expressed as a bar plot with a dot plot. Significance among chondrogenic factors was assessed using two-way ANOVA with post hoc Turkey HSD test (*p < 0.05, **p < 0.01)