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Physiological and pathological roles of Apaf1 and the apoptosome
E Ferraro1, M Corvaro, F Cecconi
1Dulbecco Telethon Institute at the Department of Biology, University of Tor Vergata, Rome, Italy.
Abstract:
Different cellular pathways can lead to apoptosis. Apaf1 is the molecular core of the apoptosome, a multiproteic complex mediating the so-called mitochondrial pathway of cell death. The importance of this pathway during development has been clearly demonstrated by knocking out key genes. Also, the relevance of Apaf1 dosage during development has been recently underlined. Moreover, a growing body of evidences seems to point out a possible role of the mitochondria-dependent apoptosis in different pathologies. In particular, we discuss here some recent evidences regarding the putative role of the apoptosome in neurodegeneration and cancer.
Insights
Apaf1 protein is central to the mitochondrial cell death pathway, known as the apoptosome. Its dosage is critical for development and may play a role in neurodegeneration and cancer.
Area of Science:
- Cellular Biology
- Molecular Biology
- Developmental Biology
Background:
- Apoptosis, or programmed cell death, can occur through various cellular pathways.
- The apoptosome, a protein complex, is the core of the mitochondrial pathway of cell death, with Apaf1 as its key component.
Purpose of the Study:
- To highlight the critical role of Apaf1 in the mitochondrial apoptosis pathway.
- To discuss the implications of Apaf1 dosage during development.
- To explore the potential involvement of the apoptosome in pathologies like neurodegeneration and cancer.
Main Methods:
- Gene knockout studies to demonstrate pathway importance during development.
- Analysis of recent evidence linking Apaf1 and disease.
Main Results:
- Gene knockouts confirm the significance of the mitochondrial pathway in development.
- Apaf1 dosage is crucial for normal development.
- Emerging evidence suggests the apoptosome's involvement in neurodegenerative diseases and cancer.
Conclusions:
- The apoptosome, mediated by Apaf1, is essential for developmental processes.
- Dysregulation of Apaf1 and the mitochondrial pathway may contribute to disease pathogenesis.
- Further research is warranted to elucidate the apoptosome's role in neurodegeneration and cancer.