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Understanding mitochondrial potassium channels: 33 years after discovery

Authors :
Adam Szewczyk
Source :
Acta Biochimica Polonica, Vol 71 (2024)
Publication Year :
2024
Publisher :
Frontiers Media S.A., 2024.

Abstract

Mitochondrial investigations have extended beyond their traditional functions, covering areas such as ATP synthesis and metabolism. Mitochondria are now implicated in new functional areas such as cytoprotection, cellular senescence, tumor function and inflammation. The basis of these new areas still relies on fundamental biochemical/biophysical mitochondrial functions such as synthesis of reactive oxygen species, mitochondrial membrane potential, and the integrity of the inner mitochondrial membrane i.e., the passage of various molecules through the mitochondrial membranes. In this view transport of potassium cations, known as the potassium cycle, plays an important role. It is believed that K+ influx is mediated by various potassium channels present in the inner mitochondrial membrane. In this article, we present an overview of the key findings and characteristics of mitochondrial potassium channels derived from research of many groups conducted over the past 33 years. We propose a list of six fundamental observations and most important ideas dealing with mitochondrial potassium channels. We also discuss the contemporary challenges and future prospects associated with research on mitochondrial potassium channels.

Details

Language :
English
ISSN :
1734154X
Volume :
71
Database :
Directory of Open Access Journals
Journal :
Acta Biochimica Polonica
Publication Type :
Academic Journal
Accession number :
edsdoj.15f8a2499b3f487abac0bad538c1f45e
Document Type :
article
Full Text :
https://doi.org/10.3389/abp.2024.13126