Journal
BIOCHEMICAL SOCIETY TRANSACTIONS
Volume 35, Issue -, Pages 1052-1054Publisher
PORTLAND PRESS LTD
DOI: 10.1042/BST0351052
Keywords
cardioprotection; ischaemia; ischaemic preconditioning; mitochondrion; protein kinase C epsilon (PKC epsilon); receptor for activated C-kinase (RACK)
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Funding
- NHLBI NIH HHS [HL 52141] Funding Source: Medline
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Mitochondria mediate diverse cellular functions including energy generation and ROS (reactive oxygen species) production and contribute to signal transduction. Mitochondria are also key regulators of cell viability and play a central role in necrotic and apoptotic cell death pathways induced by cardiac ischaemia/reperfusion injury. PKC (protein kinase C) e plays a critical role in cardioprotective signalling pathways that protect the heart from ischaemia/reperfusion. Emerging evidence suggests that the cardioprotective target of PKC epsilon resides at the mitochondria. Proposed mitochondrial targets of PKC epsilon include mitoKATP (mitochondrial ATP-sensitive K+ channel), components of the MPTP (mitochondrial permeability transition pore) and components of the electron transport chain. This review highlights mitochondrial targets of PKCe and their possible role in cardioprotective signalling in the setting of ischaemia/reperfusion injury.
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