Fig. 2

a The uptake of PKH67-labeled exosomes (red) by cardiomyocytes (blue). b The cardiomyocyte apoptosis level among groups is shown by flow cytometry. Dox indicates Dox-treated cardiomyocytes; Exo indicates Dox-treated cardiomyocytes incubated with TSC-Exos. Mimic indicates Dox-treated cardiomyocytes incubated with miR-200b mimic; Inhibitor indicates Dox-treated cardiomyocytes incubated with miR-200b inhibitor