Permeation, regulation and control of expression of TRP channels by trace metal ions
Alexandre Bouron1, Kirill Kiselyov, Johannes Oberwinkler
1CNRS, 38054, Grenoble, France, alexandre.bouron@cea.fr.
Abstract:
Transient receptor potential (TRP) channels form a diverse family of cation channels comprising 28 members in mammals. Although some TRP proteins can only be found on intracellular membranes, most of the TRP protein isoforms reach the plasma membrane where they form ion channels and control a wide number of biological processes. There, their involvement in the transport of cations such as calcium and sodium has been well documented. However, a growing number of studies have started to expand our understanding of these proteins by showing that they also transport other biologically relevant metal ions like zinc, magnesium, manganese and cobalt. In addition to this newly recognized property, the activity and expression of TRP channels can be regulated by metal ions like magnesium, gadolinium, lanthanum or cisplatin. The aim of this review is to highlight the complex relationship between metal ions and TRP channels.
Insights
Transient receptor potential (TRP) channels transport various metal ions beyond calcium and sodium. This review explores the intricate interplay between these TRP channels and metal ions, revealing new biological roles.
Area of Science:
- Biochemistry
- Cell Biology
- Physiology
Background:
- Transient receptor potential (TRP) channels are a large family of mammalian cation channels.
- TRP channels are primarily known for transporting calcium and sodium ions at the plasma membrane.
- Their roles in various biological processes are well-established.
Purpose of the Study:
- To review the complex relationship between metal ions and TRP channels.
- To highlight the emerging roles of TRP channels in transporting biologically relevant metal ions.
- To discuss the regulatory effects of metal ions on TRP channel activity and expression.
Main Methods:
- Literature review of recent studies on TRP channels and metal ions.
- Analysis of research on TRP channel function and metal ion transport.
- Synthesis of findings on metal ion regulation of TRP channel activity.
Main Results:
- TRP channels transport metal ions such as zinc, magnesium, manganese, and cobalt.
- Metal ions like magnesium, gadolinium, lanthanum, and cisplatin can regulate TRP channel activity and expression.
- This expands the known functions of TRP channels beyond simple cation transport.
Conclusions:
- TRP channels exhibit a broader ion transport capability than previously understood.
- Metal ions play a significant role in modulating TRP channel function.
- Further research is warranted to fully elucidate these complex interactions and their physiological implications.
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