Fig. 4

Effects of Nanofat-CM on cell viability and wound healing ability of chondrocytes. A Cell viability assay at 24 h and 48 h after Nanofat-CM treatment; B Wound healing assay of chondrocytes with Nanofat-CM treatment at 0 h, 12 h and 24 h, scale bars = 100 μm; C quantification of blank area ratio (of 0 h) at 12 h and 24 h. Values were presented as mean ± SD. ^##P < 0.01 versus control group; **P < 0.01 versus IL-1β group