Cells were treated with ARN-509 (50 µM) alone or in combination with the autophagy inhibitors 3-methyladenine (3MA, 5 mM) or chloroquine (Chl, 20 µM) or with ATG5 siRNA knock-down.
The combination of 50 µM ARN-509 with autophagy inhibitors produced a further increase in cell death by day 7.