Cells were seeded in 6 cm dishes and treated with 100 nM NAO the following day. After 15 minutes of incubation, cells were harvested by trypsin and pelletized. After one washing step in in PBS, mitochondrial staining of 100,000 cells per sample was analyzed via FITC channel with the BD FACS Canto II flow cytometer and the BD FACSDiva software (BD Biosciences, Franklin Lakes, USA). Data were evaluated using FlowJo software (FlowJo LLC, Ashland, USA) and related to MCF-7/empty control cells.
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