Fig. 4From: Placenta mesenchymal stem cell-derived extracellular vesicles alleviate liver fibrosis by inactivating hepatic stellate cells through a miR-378c/SKP2 axisThe uptake of Pd-MSCs-EVs by liver organoids. A The Pd-MSCs-EVs at different concentrations were simultaneously pre-stained with PKH67 and PKH26 and then administrated into liver organoids. The uptake of extracellular vesicles was observed after 6 h or 24 h. B Semi-quantitative analysis of PKH67 staining in A. C Semi-quantitative analysis of PKH26 staining in A. Bar scale, 50 μm. *P < 0.05; **P < 0.01Back to article page