Fig. 1.

Characterization of exosomes derived from human umbilical cord mesenchymal stem cells (hUCMSCs).

hUCMSC-exosomes were isolated and purified from hUCMSC supernatant using a 101Bio Exosome Kit.

(A). Identification of the main morphological characteristics of hUCMSC-exosomes by transmission electron microscopy images, Scale bar = 100 nm/200 nm.

(B). Dynamic light scattering (DLS) number distribution measurement of hUCMSC-exosomes have a single peak (~ 60 nm) diameter.

(C). RNA expression profiles of hUCMSC-exosomes by Genechip analysis.

(D). The markers of exosomes are detected using western blot assay.