DAPK1 interaction with NMDA receptor NR2B subunits mediates brain damage in stroke.
DAPK1 interaction with NMDA receptor NR2B subunits mediates brain damage in stroke.
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DOI:
10.1016/j.cell.2009.12.055
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发表时间:
2010-01-22
期刊:
影响因子:
64.5
通讯作者:
Lu Y
中科院分区:
文献类型:
--
作者:
Tu W;Xu X;Peng L;Zhong X;Zhang W;Soundarapandian MM;Balel C;Wang M;Jia N;Zhang W;Lew F;Chan SL;Chen Y;Lu Y
N-methyl-D-aspartate (NMDA) receptors constitute a major subtype of glutamate receptors at extra-synaptic sites that link multiple intracellular catabolic processes responsible for irreversible neuronal death. Here, we report that cerebral ischemia recruits death-associated protein kinase 1 (DAPK1) into the NMDA receptor NR2B protein complex in the cortex of adult mice. DAPK1 directly binds with the NMDA receptor NR2B C-terminal tail consisting of amino acid 1292–1304 (NR2BCT). A constitutively active DAPK1 phosphorylates NR2B subunit at Ser-1303 and in turn enhances the NR1/NR2B receptor channel conductance. Genetic deletion of DAPK1 or administration of NR2BCT that uncouples an activated DAPK1 from an NMDA receptor NR2B subunit in vivo in mice blocks injurious Ca2+ influx through NMDA receptor channels at extrasynaptic sites and protects neurons against cerebral ischemic insults. Thus, DAPK1 physically and functionally interacts with the NMDA receptor NR2B subunit at extra-synaptic sites and this interaction acts as a central mediator for stroke damage.
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DOI:
10.1073/pnas.88.24.11158
发表时间:
1991-12-01
影响因子:
11.1
作者:
KINOUCHI, H;EPSTEIN, CJ;CHAN, PH
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DOI:
10.1073/pnas.96.10.5752
发表时间:
1999-05-11
影响因子:
11.1
作者:
Krajewski, S;Krajewska, M;Reed, JC
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Reed, JC
影响因子:
5.3
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