PCSK1 and melanoma: To test whether apoptosis, autophagy, necroptosis or ER stress would play a role in NDV/FMW-triggered ICD in melanoma cells, we pretreated the cells with the pan-caspase inhibitor Z-VAD-FMK (Z-VAD), the autophagy inhibitor chloroquine (CQ), the necroptosis inhibitor Necrostain-1 (Nec-1), and ER stress inhibitor GSK2606414 (GSK), respectively.