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Title: Suppression of Pyk2 attenuated the increased tyrosine phosphorylation of NMDA receptor subunit 2A after brain ischemia in rat hippocampus
Author: Liu, Y ; Zhang, GY ; Yan, JZ ; Xu, TL(徐天乐)
Source: NEUROSCIENCE LETTERS
Issued Date: 2005
Volume: 379, Issue:1, Pages:55-58
Keyword: brain ischemia ; NMDA receptor ; Pyk2 ; tyrosine phosphorylation ; Src ; D-ASPARTATE RECEPTOR ; MOLECULAR-MECHANISMS ; SRC ; KINASE ; ACTIVATION ; DOMAINS ; COMPLEX ; PSD-95 ; INJURY ; FYN
Subject: Neurosciences & Neurology
Corresponding Author: Zhang, GY (reprint author), Univ Sci & Technol China, Sch Life Sci, Dept Neurobiol & Biophys, Hefei 230027, Peoples R China,gyzhang@xzmc.edu.cn
English Abstract: Effects of suppressing the protein expression of Pyk2 on increased tyrosine phosphorylation of N-methyl-D-aspartate (NMDA) receptor subunit 2A (NR2A) after brain ischemia in rat hippocampus were studied with immunoprecipitation and immunoblot. Transient (15 min) brain ischemia and reperfusion (I/R) was induced by four-vessel occlusion in Sprague-Dawley (SD) rats. I/R led to increases of tyrosine phosphorylation of NR2A and interaction of Pyk2 and Src kinase with NR2A after 6 h of reperfusion. The increases were attenuated by Pyk2 antisense oligonucleotides intracerebroventricularly infused every 24 h for 4 days before ischemia, but not missense oligonucleotides or vehicle. The antisense also inhibited the increased auto-phosphorylation of Pyk2 and Src kinase, while the protein expression of NR2A or Src kinase had no obvious change under the above conditions. The data suggested that Pyk2 may be involved in facilitating NR2A tyrosine phosphorylation by Src kinase after I/R. (c) 2004 Elsevier Ireland Ltd. All rights reserved.
Indexed Type: SCI
Language: 英语
Content Type: 期刊论文
URI: http://ir.sibs.ac.cn/handle/331001/1907
Appears in Collections:神经所(总)_期刊论文

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Liu, Y; Zhang, GY; Yan, JZ; Xu, TL.Suppression of Pyk2 attenuated the increased tyrosine phosphorylation of NMDA receptor subunit 2A after brain ischemia in rat hippocampus,NEUROSCIENCE LETTERS,2005,379(1):55-58
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