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Non-selective cation channels, transient receptor potential channels and ischemic stroke Simard JM; Tarasov KV; Gerzanich VBiochim Biophys Acta 2007[Aug]; 1772 (8): 947-57Several pathways to neural cell death are involved in ischemic stroke, and all require monovalent or divalent cation influx, implicating non-selective cation (NC) channels. NC channels are also likely to be involved in the dysfunction of vascular endothelial cells that leads to formation of edema following cerebral ischemia. Two newly described NC channels have emerged as potential participants in ischemic stroke, the acid sensing ion channel (ASIC), and the sulfonylurea receptor-1 (SUR1)-regulated NC(Ca-ATP) channel. Non-specific blockers of NC channels, including pinokalant (LOE 908 MS) and rimonabant (SR141716A), have beneficial effects in rodent models of ischemic stroke. Evidence is accumulating that NC channels formed by members of the transient receptor potential (TRP) family are also up-regulated in ischemic stroke and may play a direct role in calcium-mediated neuronal death. The nascent field of NC channels, including TRP channels, in ischemic stroke is poised to provide novel mechanistic insights and therapeutic strategies for this often devastating human condition.|ATP-Binding Cassette Transporters/metabolism/physiology[MESH]|Acid Sensing Ion Channels[MESH]|Animals[MESH]|Brain Ischemia/complications/genetics/*physiopathology[MESH]|Calcium Channel Blockers/pharmacology[MESH]|Calcium-Transporting ATPases/metabolism/physiology[MESH]|Humans[MESH]|Ion Channels/antagonists & inhibitors/genetics/*physiology[MESH]|Membrane Proteins/genetics/physiology[MESH]|Models, Biological[MESH]|Nerve Tissue Proteins/genetics/physiology[MESH]|Potassium Channels, Inwardly Rectifying/metabolism/physiology[MESH]|Potassium Channels/metabolism/physiology[MESH]|Receptors, Drug/metabolism/physiology[MESH]|Sodium Channels/genetics/physiology[MESH]|Stroke/etiology/genetics/*physiopathology[MESH]|Sulfonylurea Receptors[MESH]|Transient Receptor Potential Channels/genetics/*physiology[MESH] |
