Neuroprotection against ischaemic brain injury by a GluR6-9c peptide containing the TAT protein transduction sequence

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	Neuroprotection against ischaemic brain injury by a GluR6-9c peptide containing the TAT protein transduction sequence
	Pei, DS ; Wang, XT ; Liu, Y ; Sun, YF ; Guan, QH ; Wang, W ; Yan, JZ ; Zong, YY ; Xu, TL(徐天乐) ; Zhang, GY
刊名	BRAIN
	2006
卷号	129 期号:pt 2 页码:465-479
关键词	cerebral ischaemia glutamate receptor 6 (GluR6) mixed lineage kinase-3 (MLK3) c-Jun N-terminal kinase (JNK) Tat protein RECEPTOR-MEDIATED RESPONSES PROGRAMMED CELL-DEATH C-JUN CEREBRAL-ISCHEMIA GLUR6-DEFICIENT MICE HIPPOCAMPAL-NEURONS KINASE ACTIVATION KAINATE RECEPTORS RAT HIPPOCAMPUS MIXED LINEAGE
ISSN号	0006-8950
通讯作者	Zhang, GY (reprint author), Xuzhou Med Coll, Res Ctr Biochem & Mol Biol, 84 W Huaihai Rd, Xuzhou 221002, Jiangsu, Peoples R China,gyzhang@xzmc.edu.cn
英文摘要	It is well documented that N-methyl-D-aspartate and alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionate receptors play a pivotal role in ischaemic brain injury. Recent studies have shown that kainate (KA) receptors are involved in neuronal cell death induced by seizure, which is mediated by the GluR6 center dot PSD-95 center dot MLK3 signalling module and subsequent c-Jun N-terminal kinase (JNK) activation. Here we investigate whether GluR6 mediated JNK activation is correlated with ischaemic brain injury. Our results show that cerebral ischaemia followed by reperfusion can enhance the assembly of the GluR6 center dot PSD-95 center dot MLK3 signalling module and JNK activation. As a result, activated JNK can not only phosphorylate the transcription factor c-Jun and up-regulate Fas L expression but can also phosphorylate 14-3-3 and promote Bax translocation to mitochondria, increase the release of cytochrome c and increase caspase-3 activation. These results indicate that GluR6 mediated JNK activation induced by ischaemia/reperfusion ultimately results in neuronal cell death via nuclear and non-nuclear pathways. Furthermore, the peptides we constructed, Tat-GluR6-9c, show a protective role against neuronal death induced by cerebral ischaemia/reperfusion through inhibiting the GluR6 mediated signal pathway. In summary, our results indicate that the KA receptor subunit GluR6 mediated JNK activation is involved in ischaemic brain injury and provides a new approach for stroke therapy.
学科主题	Neurosciences & Neurology
收录类别	SCI
语种	英语
公开日期	2012-07-23
内容类型	期刊论文
源URL	[http://ir.sibs.ac.cn/handle/331001/1840]
专题	上海神经科学研究所_神经所(总)
推荐引用方式 GB/T 7714	Pei, DS,Wang, XT,Liu, Y,et al. Neuroprotection against ischaemic brain injury by a GluR6-9c peptide containing the TAT protein transduction sequence[J]. BRAIN,2006,129(pt 2):465-479.
APA	Pei, DS.,Wang, XT.,Liu, Y.,Sun, YF.,Guan, QH.,...&Zhang, GY.(2006).Neuroprotection against ischaemic brain injury by a GluR6-9c peptide containing the TAT protein transduction sequence.BRAIN,129(pt 2),465-479.
MLA	Pei, DS,et al."Neuroprotection against ischaemic brain injury by a GluR6-9c peptide containing the TAT protein transduction sequence".BRAIN 129.pt 2(2006):465-479.