Fig 1. Control of the endocytosis inhibitors function.

U937 and K562 cells were treated with 50 mM ammonium chloride (A), 2.5 mM methyl-β-cyclodextrin (B), 20 μM chlorpromazine, 150 μM dansylcadaverine, 160 μM dynasore (C) or untreated (control) and then incubated with acridine orange (A), FITC-labelled cholera toxin (B) or TRITC-labelled transferrin (C). Controls without drugs were performed and the samples were visualized by fluorescence microscope.