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The role of mitochondrial reactive oxygen species, NO and H2S in ischaemia/reperfusion injury and cardioprotection

Permanent link
https://hdl.handle.net/10037/19451
DOI
https://doi.org/10.1111/jcmm.15279
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Date
2020-05-08
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Author
Andreadou, Ioanna; Schulz, Rainer; Papapetropoulos, Andreas; Turan, Belma; Ytrehus, Kirsti; Ferdinandy, Peter; Daiber, Andreas; Di Lisa, Fabio
Abstract
Redox signalling in mitochondria plays an important role in myocardial ischaemia/reperfusion (I/R) injury and in cardioprotection. Reactive oxygen and nitrogen species (ROS/RNS) modify cellular structures and functions by means of covalent changes in proteins including among others S‐nitros(yl)ation by nitric oxide (NO) and its derivatives, and S‐sulphydration by hydrogen sulphide (H2S). Many enzymes are involved in the mitochondrial formation and handling of ROS, NO and H2S under physiological and pathological conditions. In particular, the balance between formation and removal of reactive species is impaired during I/R favouring their accumulation. Therefore, various interventions aimed at decreasing mitochondrial ROS accumulation have been developed and have shown cardioprotective effects in experimental settings. However, ROS, NO and H2S play also a role in endogenous cardioprotection, as in the case of ischaemic pre‐conditioning, so that preventing their increase might hamper self‐defence mechanisms. The aim of the present review was to provide a critical analysis of formation and role of reactive species, NO and H2S in mitochondria, with a special emphasis on mechanisms of injury and protection that determine the fate of hearts subjected to I/R. The elucidation of the signalling pathways of ROS, NO and H2S is likely to reveal novel molecular targets for cardioprotection that could be modulated by pharmacological agents to prevent I/R injury.
Publisher
Wiley
Citation
Andreadou, Schulz, Papapetropoulos, Turan, Ytrehus, Ferdinandy, Daiber, Di Lisa. The role of mitochondrial reactive oxygen species, NO and H2S in ischaemia/reperfusion injury and cardioprotection . Journal of Cellular and Molecular Medicine. 2020;24(12):6510-6522
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