Fig. 7.
Concentration of interleukin-1β (IL-1β), a disintegrin and metalloproteinase with thrombospondin motifs 5 (ADAMTS-5), and metallopeptidase 13 (MMP-13) at 1 week, 2 weeks, and 3 weeks of chondrogenic induction in monolayer (a) and pellet (b) culture. Data are presented as mean ± SD. *P < 0.05. AC articular chondrocyte, MSC mesenchymal stem cell, NP nanoparticle