by TranSpread Hypoxia facilitates exosome production and release from BMSCs. (a) Transmission electron microscopy (TEM) revealed the morphology of noBMSC-Exos and hyBMSC-Exos (scale bar: 100 nm). (b) The size distribution of noBMSC-Exos and hyBMSC-Exos was examined using nanoparticle tracking analysis (NTA). (c and d) Western blotting analysis for exosome surface marker proteins, including CD9, CD63,...
