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Confocal images of (a) BT-474 and (b) SK-N-MC cells treated with EVs (equivalent to DOX of 5 μg/mL) for 4 h incubation at 37 °C. The cells were stained using 4′,6-diamidino-2-phenylindole dihydrochloride (DAPI) and Wheat Germ Agglutinin Alexa Fluor® 488 Conjugate (WGA-Alexa Fluor®488).
