Evidence for the regulation of L-type Ca2+ channels in the heart by reactive oxygen species: mechanism for mediating pathology

Clinical and Experimental Pharmacology & Physiology
L C Hool

Abstract

1. It is well recognized that reactive oxygen species (ROS) can activate transduction pathways to mediate pathophysiology. An increase in ROS has been implicated in a number of cardiovascular disorders. Reactive oxygen species regulate cell function through redox modification of target proteins. One of these target proteins is the L-type Ca(2+) channel. 2. There is good evidence that thiol reducing and oxidizing compounds, including hydrogen peroxide, can influence calcium channel function. The evidence for regulation of the channel protein and regulatory proteins by thiol-specific modifying agents and relevance to hypoxia and oxidative stress is presented. 3. Clinical studies suggest that calcium channel antagonists may be beneficial in reducing myocardial injury associated with oxidative stress. The identification of cysteines as possible targets for intervention during hypoxic trigger of arrhythmia or chronic pathological remodelling is discussed.

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Citations

Nov 19, 2010·American Journal of Physiology. Renal Physiology·Aurélie EdwardsThomas L Pallone
Aug 13, 2013·BioMed Research International·Ramón RodrigoDaniel Hasson
Jun 6, 2012·Oxidative Medicine and Cellular Longevity·Justyna SliwinskaKatarzyna Dawidek-Pietryka
Mar 1, 2018·FASEB Journal : Official Publication of the Federation of American Societies for Experimental Biology·Zhenghang ZhaoLai-Hua Xie
Apr 2, 2021·Oxidative Medicine and Cellular Longevity·Margarita Segovia-RoldanEsther Pueyo

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