کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9429290 | 1297037 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Suppression of Pyk2 attenuated the increased tyrosine phosphorylation of NMDA receptor subunit 2A after brain ischemia in rat hippocampus
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
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چکیده انگلیسی
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 (15Â 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 6Â h of reperfusion. The increases were attenuated by Pyk2 antisense oligonucleotides intracerebroventricularly infused every 24Â 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 379, Issue 1, 29 April 2005, Pages 55-58
Journal: Neuroscience Letters - Volume 379, Issue 1, 29 April 2005, Pages 55-58
نویسندگان
Yong Liu, Guang-Yi Zhang, Jing-Zhi Yan, Tian-Le Xu,