期刊
SCIENCE
卷 298, 期 5594, 页码 846-850出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1072873
关键词
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资金
- NINDS NIH HHS [NS 39060] Funding Source: Medline
N-methyl-D-aspartate receptors (NMDARs) mediate ischemic brain damage but also mediate essential neuronal excitation. To treat stroke without blocking NMDARs, we transduced neurons with peptides that disrupted the interaction of NMDARs with the postsynaptic density protein PSD-95. This procedure dissociated NMDARs from downstream neurotoxic signaling without blocking synaptic activity or calcium influx. The peptides, when applied either before or 1 hour after an insult, protected cultured neurons from excitotoxicity, reduced focal ischemic brain damage in rats, and improved their neurological function. This approach circumvents the negative consequences associated with blocking NMDARs and may constitute a practical stroke therapy.
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