Total GAG content (a) and HYP content (b) in different scaffold groups at weeks 0, 3, and 6. All values are expressed as the average + standard deviation (n = 6). The DCC and CS groups had significantly higher GAG content than their acellular counterparts at week 6. The DCC group at week 0 also had significantly higher HYP content than the DCC (acellular) group. *Significant difference from the BLANK group at same time point, @significant difference from the TGF group at same time point, $significant difference from the DCC group at same time point, + significant difference from the DCC (acellular) group at same time point, ?significant difference from the CS (acellular) group at same time point, #significant difference from its value at week 0, and %significant difference from its value at week 3 (p < 0.05).