FIGURE 1: Implication of mitochondria in RCD signaling.

Mitochondria play a key, non-redundant role in the signal transduction cascades that precipitate intrinsic apoptosis, some instances of extrinsic apoptosis, mitochondrial permeability transition (MPT)-driven regulated necrosis (RN), and parthanatos, but are completely dispensable for necroptosis, ferroptosis, and autophagic cell death by autosis (at least according to current knowledge). The actual contribution of mitochondria to the signaling pathways that drive pyroptotic regulated cell death (RCD) remains to be formally elucidated.

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