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. 2022 Jan 11;23:5. doi: 10.1186/s12931-022-01926-w

Fig. 2.

Fig. 2

Characterization of ADSCs-Exo. The ADSCs-Exo observed by TEM showed a typical cup-shape (A, B). The representative nano-flow cytometer histogram of ADSCs-Exo (C). Western blot indicated that ADSCs-Exo were positive for CD9, CD81 and Flotillin, but they were negative for Calnexin (D). Flow cytometry showed that most of the ADSCs-Exo were positive for CD9 (E) and CD81 (F). G1 refers to ADSCs and G2 refers to ADSCs-Exo