Fig. 1: Several switch events exist in necroptosis.

In TNFR1-induced necroptosis, cells undergo necroptosis only when RIPK1 is deubiquitinated, and caspase-8 is inhibited or absent. All death receptor-induced necroptosis requires the interaction of molecules containing the RHIM domain with the RHIM domain of RIPK3 to activate necroptosis.