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Identification of M0-BV2 and M1-BV2 SEVs. (A) The diameter of the extracted M0-BV2 and M1-BV2 SEVs was about 100 nm. (B) The structure of extracted M0-BV2 and M1-BV2 SEVs under a transmission electron microscope. Scale bar: 100 nm. (C) Western blots showed that protein markers (Tsg101 and Alix) of SEVs were expressed.
