Fig. 6

M2 macrophage polarization was induced by miR-124-3p via regulation of Ern1. a Markers of M2 macrophage polarization (Arg1, Ym1, and Fizz) expression determined by western blot analysis; a *p < 0.05 versus NC of exosome mimic; #p < 0.05 versus NC of exosome inhibitor. b M2 macrophages identified using flow cytometry. Measurement data were expressed as mean ± standard deviation. One-way ANOVA was used to analyze the difference between multiple groups with Tukey’s post hoc test. The cell experiment was repeated three times