期刊
LIFE SCIENCES
卷 86, 期 21-22, 页码 775-780出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.lfs.2010.04.004
关键词
Voltage-gated K+ channels; Blockers; Apoptosis; Hyperexcitability; Neuroprotection
资金
- China Medical University, Taiwan
- Taiwan National Science Council [CMU97-150, CMU97-340, NSC 97-2320-B-039-029-MY3]
A manifestation in neurodegeneration is apoptosis of neurons. Neurons undergoing apoptosis may lose a substantial amount of cytosolic K+ through a number of pathways including K+ efflux via voltage-gated K+ (Kv) channels. The consequent drop in cytosolic [K+] relieves inhibition of an array of pro-apoptotic enzymes such as caspases and nucleases. Blocking Kv channels has been known to prevent neuronal apoptosis by preventing K+ efflux. Some neural diseases such as epilepsy are caused by neuronal hyperexcitability, which eventually may lead to neuronal apoptosis. Reduction in activities of A-type Kv channels and Kv7 subfamily members is amongst the etiological causes of neuronal hyperexcitation; enhancing the opening of these channels may offer opportunities of remedy. This review discusses the potential uses of Kv channel modulators as neuroprotective drugs. (C) 2010 Elsevier Inc. All rights reserved.
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