Caspase-8; regulating life and death
By B. Tummers, Douglas R. Green. Immunological Reviews, 2017
684 citations recorded by the source corpus.
Roles for cell death in development, homeostasis, and the control of infections and cancer have long been recognized. Although excessive cell damage results in passive necrosis, cells can be triggered to engage molecular programs that result in cell death. Such triggers include cellular stress, oncogenic signals that engage tumor suppressor mechanisms, pathogen insults, and immune mechanisms. The best‐known forms of programmed cell death are apoptosis and a recently recognized regulated necrosis termed necroptosis. Of the two best understood pathways of apoptosis, the extrinsic and intrinsic (mitochondrial) pathways, the former is induced by the ligation of death receptors, a subset of the TNF receptor (TNFR) superfamily. Ligation of these death receptors can also induce necroptosis. The extrinsic apoptosis and necroptosis pathways regulate each other and their balance determines whether cells live. Integral in the regulation and initiation of death receptor‐mediated activation of programmed cell death is the aspartate‐specific cysteine protease (caspase)‐8. This review describes the role of caspase‐8 in the initiation of extrinsic apoptosis execution and the mechanism by which caspase‐8 inhibits necroptosis. The importance of caspase‐8 in the development and homeostasis and the way that dysfunctional caspase‐8 may contribute to the development of malignancies in mice and humans are also explored.
Subfields: Cell Biology, Molecular Biology, Paleontology
View Paper: https://www.semanticscholar.org/paper/5ab67628f629458e9e137b8bebb6b3c6193e3e0c
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In Molecular Biology
Citations in the corpus
- Role of pyroptosis in inflammation and cancer (2022, background): “The amino terminus is automatically integrated into the cell membrane to form the hole that causes pyroptosis, preventing caspase-8 from recruiting caspase-3 to the apoptosis process, thus switching TNFα-induced apoptosis into pyroptosis [131, 134, 135] (Fig.”
- Molecular mechanisms of cell death in neurological diseases (2021, background): “Necroptosis can be induced by the stimulation of TNFR1, TLRs and certain other receptors when the activity of caspase-8 is blocked by pharmacological agents or viral inhibitors [56].”