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. 2023 Aug 23;55(8):1632–1643. doi: 10.1038/s12276-023-01069-y

Fig. 3. Molecular mechanisms of necroptosis.

Fig. 3

TNF ligation or LPS stimulation results in activation of NF-κB signaling. Inactivation of NF-κB signaling or engagement of death receptors triggers the assembly of an apoptosis-inducing complex consisting of FADD, caspase-8, and RIPK1. When caspase-8 is inhibited, RIPK1 and RIPK3 form necrosomes through homotypic interactions with RHIM, resulting in phosphorylation of MLKL. Phosphorylated MLKL undergoes oligomerization and induces membrane rupture.