A 3D Porous Gelatin-Alginate-Based-IPN Acts as an Efficient Promoter of Chondrogenesis from Human Adipose-Derived Stem Cells

Figure 8

Confocal microscopy micrographs of cells inside (a) G-A-PAA and (b) G-A scaffolds during chondrogenesis: (1) 24 h after seeding, (2) Sox9 positive expression (red fluorescence) at 7 days postchondrogenic induction, (3) Col2a1 positive expression (green fluorescence) at 14 days postchondrogenic induction, and (4) CEP68 positive expression (green fluorescence) at 14 days postchondrogenic induction.