Exosomes Derived from Human Umbilical Cord Mesenchymal Stem Cells Relieve Acute Myocardial Ischemic Injury

Figure 2

Identification of exosomes derived from hucMSC. Transmission electron photomicrograph of hucMSC-exosomes (a). Scale bar = 250 nm. Diameter ranges of hucMSC-exosomes under transmission electron microscopy (b). NTA of nonexosome fraction and hucMSC-exosomes (c). The protein concentration and particle concentration of hucMSC-exosomes in different batches (d). CD9 and CD63 expression in hucMSC-exosomes detected by western blot (e).

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