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Updated: Apr 20, 2026

Activation of Apoptosis by Cytoplasmic Microinjection of Cytochrome c
Published on: June 29, 2011
Ion channels in the regulation of apoptosis
Artem Kondratskyi1, Kateryna Kondratska1, Roman Skryma1
1Inserm, U-1003, Equipe labellisée par la Ligue Nationale Contre le Cancer, Laboratory of Excellence, Ion Channels Science and Therapeutics, Université Lille 1, Villeneuve d'Ascq, France.
Abstract:
Apoptosis, a type of genetically controlled cell death, is a fundamental cellular mechanism utilized by multicellular organisms for disposal of cells that are no longer needed or potentially detrimental. Given the crucial role of apoptosis in physiology, deregulation of apoptotic machinery is associated with various diseases as well as abnormalities in development. Acquired resistance to apoptosis represents the common feature of most and perhaps all types of cancer. Therefore, repairing and reactivating apoptosis represents a promising strategy to fight cancer. Accumulated evidence identifies ion channels as essential regulators of apoptosis. However, the contribution of specific ion channels to apoptosis varies greatly depending on cell type, ion channel type and intracellular localization, pathology as well as intracellular signaling pathways involved. Here we discuss the involvement of major types of ion channels in apoptosis regulation. This article is part of a Special Issue entitled: Membrane channels and transporters in cancers.
Insights
Apoptosis, a programmed cell death, is vital for health. Reactivating apoptosis by targeting ion channels offers a promising cancer treatment strategy, addressing resistance to cell death.
Area of Science:
- Cell Biology
- Molecular Biology
- Oncology
Background:
- Apoptosis, or programmed cell death, is essential for multicellular organism development and homeostasis.
- Deregulation of apoptosis is linked to diseases, notably cancer, where resistance to cell death is a hallmark.
- Ion channels are increasingly recognized as critical regulators of apoptotic pathways.
Purpose of the Study:
- To review the role of major ion channel types in regulating apoptosis.
- To highlight the potential of targeting ion channels for cancer therapy by restoring apoptosis.
Main Methods:
- Literature review of studies investigating ion channels and apoptosis.
- Discussion of specific ion channel families and their involvement in apoptotic signaling.
- Analysis of how ion channel function impacts cancer cell survival and death.
Main Results:
- Ion channels significantly influence apoptosis, but their specific roles are context-dependent (cell type, localization, signaling pathways).
- Dysfunctional ion channels can contribute to cancer development by promoting survival and inhibiting apoptosis.
- Modulating ion channel activity presents a viable therapeutic avenue for cancer treatment.
Conclusions:
- Ion channels are key players in the intricate process of apoptosis.
- Understanding the specific roles of ion channels in apoptosis is crucial for developing targeted cancer therapies.
- Reactivating apoptosis through ion channel modulation is a promising strategy against cancer.
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