Fig. 3From: Biological potential alterations of migratory chondrogenic progenitor cells during knee osteoarthritic progressionMigration 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 fluidBack to article page