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Programmed necrosis from molecules to health and disease
Lorenzo Galluzzi1, Tom Vanden Berghe, Nele Vanlangenakker
1INSERM, Villejuif, France.
International Review of Cell and Molecular Biology
|July 14, 2011
Summary
Necrosis is now understood as a regulated cell death pathway called necroptosis, involving specific protein complexes. This ancient mechanism, conserved across species, is implicated in diseases and offers drug development potential.
Area of Science:
- Cell Biology
- Molecular Biology
- Immunology
Background:
- Historically, necrosis was considered an accidental cell death process.
- Recent discoveries reveal regulated signaling pathways can induce necrosis.
- Caspase inhibition can trigger necroptosis via death receptor signaling.
Purpose of the Study:
- To review the conceptual shift in understanding necrosis.
- To elucidate the molecular mechanisms of necroptosis.
- To highlight the evolutionary conservation and disease relevance of necroptosis.
Main Methods:
- Review of historical and current scientific literature.
- Analysis of molecular signaling pathways involved in cell death.
- Examination of evidence from various model organisms and human diseases.
Main Results:
- Necrosis can be a programmed, regulated cell death (programmed necrosis).
- The necrosome complex, involving RIPK1 and RIPK3, mediates necroptosis.
- Necroptosis is conserved in non-mammalian organisms and linked to diseases like ischemia and viral infections.
Conclusions:
- Necroptosis represents an evolutionarily ancient and conserved cell death pathway.
- Understanding necroptosis mechanisms is crucial for disease research.
- Targeting necroptosis pathways holds promise for therapeutic drug development.
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