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Published on: March 5, 2018
Molecules that modulate Apaf-1 activity
Enrique Pérez-Payá1, Mar Orzáez, Laura Mondragón
1Peptide and Protein Laboratory, Department of Medicinal Chemistry, Centro de Investigación Príncipe Felipe, Avda Autopista del Saler, Valencia, Spain. eperez@cipf.es
Abstract:
Programmed cell death, apoptosis, is a highly regulated cellular pathway, responsible for the elimination of cells in the organism that are no longer needed or extensively damaged. Defects in the regulation of apoptosis could be at the molecular basis of different diseases, either when it is insufficient or excessive. The formation of the macromolecular complex, apoptosome, is a key event in this pathway, which has also been defined as the intrinsic apoptosis pathway. The apoptosome is a holoenzyme multiprotein complex formed by cytochrome c-activated apoptotic protease-activating factor (Apaf-1), dATP, and procaspase-9. Recent studies have produced a wealth of information about the regulation and functions of Apaf-1, but additional studies aimed at elucidating its role as a signaling device at the crosstalk between different signaling pathways are needed to take advantage for the development of modulators of apoptosis pathways and possible therapeutic applications.
Insights
Programmed cell death, or apoptosis, eliminates damaged cells. The apoptosome complex, crucial for this process, involves Apaf-1, dATP, and procaspase-9, and its signaling role requires further study for therapeutic development.
Area of Science:
- Cell Biology
- Biochemistry
- Molecular Biology
Background:
- Apoptosis is a regulated cellular process essential for development and disease.
- Dysregulation of apoptosis contributes to various pathologies.
- The apoptosome, a multiprotein complex, is central to the intrinsic apoptosis pathway.
Purpose of the Study:
- To review current knowledge on Apaf-1 regulation and function.
- To highlight the need for further research into Apaf-1's role in signaling crosstalk.
- To explore therapeutic potential of modulating apoptosis pathways.
Main Methods:
- Literature review of recent studies on Apaf-1 and apoptosome formation.
- Analysis of the molecular components and regulation of the intrinsic apoptosis pathway.
- Discussion of Apaf-1's function as a signaling hub.
Main Results:
- Apaf-1 is a key component of the apoptosome, alongside dATP and procaspase-9.
- Recent research has expanded understanding of Apaf-1's regulation and functions.
- Apaf-1's role in integrating signals from different pathways is an area for further investigation.
Conclusions:
- The apoptosome's formation is a critical step in apoptosis.
- Further elucidation of Apaf-1's signaling role is necessary.
- Understanding Apaf-1 signaling may lead to novel therapeutic strategies for apoptosis-related diseases.
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