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Updated: Sep 2, 2025

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Activation of Apoptosis by Cytoplasmic Microinjection of Cytochrome c
Published on: June 29, 2011
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Mitochondrial sirtuin 3 and various cell death modalities
Maria A Yapryntseva1, Polina V Maximchik1, Boris Zhivotovsky1,2
1Faculty of Basic Medicine, Lomonosov Moscow State University, Moscow, Russia.
Frontiers in Cell and Developmental Biology
|August 8, 2022
Summary
Sirtuin 3 regulates cell death and tumor metabolism. This review explores its role in eliminating cancer cells, focusing on mitochondria and reactive oxygen species (ROS).
Area of Science:
- Cellular Biology
- Biochemistry
- Oncology
Background:
- Sirtuin 3 is a mitochondrial NAD+-dependent deacetylase regulating cellular processes.
- Key functions include managing oxidative stress, tumor cell metabolism, and homeostasis.
- Sirtuin 3 influences mitochondrial outer membrane permeabilization, a critical step in apoptosis.
Purpose of the Study:
- To review the role of Sirtuin 3 in tumor cell elimination.
- To investigate the involvement of mitochondria and reactive oxygen species (ROS) in Sirtuin 3-mediated cancer cell death.
Main Methods:
- Literature review focusing on Sirtuin 3's function in cell death pathways.
- Analysis of studies linking Sirtuin 3 to mitochondrial function and ROS production in cancer.
Main Results:
- Sirtuin 3 regulates mitochondrial outer membrane permeabilization, impacting apoptosis.
- It plays a role in the crosstalk between different cell death modalities.
- Sirtuin 3 is implicated in reprogramming tumor cell energy metabolism.
Conclusions:
- Sirtuin 3 is a potential target for cancer therapy due to its role in tumor cell elimination.
- Mitochondria and ROS are crucial mediators in Sirtuin 3's effects on cancer cells.
- Further research into Sirtuin 3 could reveal new therapeutic strategies for cancer treatment.
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