Figure 3. BMSCs-derived exosomes promote macrophage/microglia autophagy following SCI. (A) Representative immunostaining image of IBA1 and Beclin1 in mice on the 7th day after injury; (B) Quantification of fluorescence intensity; (C–G) Western blot detection and quantitative analysis of p62, Beclin1, ATG5, and ATG7 proteins in spinal cord tissue on the 7th day after injury (*p < 0.05, **p < 0.01, ***p < 0.001).