Additional file 1 of MicroRNA-421-3p-abundant small extracellular vesicles derived from M2 bone marrow-derived macrophages attenuate apoptosis and promote motor function recovery via inhibition of mTOR in spinal cord injury

Additional file 1: Figure S1. (A) Western blot analysis of sEVs marker protein in sEVs-treated neurons or without sEVs -treated. (B) Representative Dil-labeled BMDM-sEVs in mice spinal cord. Red fluorescence indicate Dil-labeled BMDM-sEVs and blue fluorescence indicate nucleus. Scale bar: 20 µm.