For cell cycle analyses, cells were fixed in 70% ethanol and stained with 2 µg/ml PI. Cell cycle distribution was measured by flow cytometry (MACSQuant Analyzer).
For assessment of apoptosis cells were stained with Annexin V and PI (Annexin V-FITC Kit, Miltenyi Biotec) following the manufacturer’s instructions and analysed by flow cytometry (MACSQuant Analyzer). Mitochondrial membrane depolarisation was assayed using the fluorescent probe tetramethylrhodamine ethyl ester-TMRE (Thermo Fisher Scientific, Waltham, MA, USA) following the manufacturer’s instructions and measured by flow cytometry (MACSQuant Analyzer).
All data were analysed using the MACSQuantify software version 2.6 (Miltenyi Biotec).