Fig. 3

Migration potential of mCPCs from paired grade 1–2 and grade 3–4 OA cartilage. a–d In the presence of graded concentration of OASF (20% and 40% OA), grade 3–4 OA cartilage-derived mCPCs exhibited higher migration rates than that of their counterpart from grade 1–2 OA cartilage at 10 h and 20 h (n = 5 donors, with each repeated in triplicates). **p < 0.01, ***p < 0.001. OASF, osteoarthritis synovial fluid