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Updated: Jun 30, 2025
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Activation of Apoptosis by Cytoplasmic Microinjection of Cytochrome c
Published on: June 29, 2011
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Diverse functions of cytochrome c in cell death and disease
Zhuan Zhou1, Tasnim Arroum2, Xu Luo3
1Department of Surgery, UT Southwestern Medical Center, Dallas, TX, 75390, USA.
Cell Death and Differentiation
|March 24, 2024
Summary
Cytochrome c, a protein regulating cell death, shifts location under stress. Its modifications and interactions influence diverse cellular processes and disease.
Area of Science:
- Cellular Biology
- Biochemistry
- Molecular Medicine
Background:
- Cytochrome c is a redox-active protein crucial for cellular respiration and apoptosis.
- Its localization varies from mitochondria to cytosol, nucleus, and extracellular space under different conditions.
- It plays a key role in energy production, cell death pathways, and immune responses.
Purpose of the Study:
- To review the diverse structural and functional roles of cytochrome c.
- To summarize the impact of posttranslational modifications, binding proteins, and mutations on cytochrome c function.
- To provide an overview of detection technologies and therapeutic strategies involving cytochrome c.
Main Methods:
- Literature review of cytochrome c's roles in physiological and pathological conditions.
- Analysis of factors influencing cytochrome c function, including modifications, binding partners, and mutations.
- Survey of advanced detection technologies and therapeutic approaches.
Main Results:
- Cytochrome c's functions extend beyond electron transport to include apoptosis initiation, cell survival, nuclear events, and immune mediation.
- Posttranslational modifications, specific protein interactions, and mutations significantly alter cytochrome c's activity.
- Various advanced technologies enable cytochrome c detection, paving the way for targeted therapies.
Conclusions:
- Cytochrome c is a versatile protein with critical roles in cell fate and homeostasis.
- Understanding its complex regulation offers potential for novel therapeutic interventions.
- Targeting cytochrome c holds promise for treating diseases like cancer and neurodegenerative disorders.
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