Fig. 4

Macrophage-derived exosomes following MPLA stimulation inhibited MLE-12 cell apoptosis. A, C, Apoptosis of MLE-12 cells exposed to different IR as determined by flow cytometry analysis. B–D, The quantification of MLE-12 cells apoptosis. *P < 0.05, **P < 0.01, *** P < 0.001,****P < 0.0001