Activation of EphA Receptors Mediates the Recruitment of the Adaptor Protein Slap, Contributing to the Downregulation of N-Methyl-d-Aspartate Receptors

Activation of EphA Receptors Mediates the Recruitment of the Adaptor Protein Slap, Contributing to the Downregulation of N-Methyl-d-Aspartate Receptors
复制标题

EphA 受体的激活介导接头蛋白 Slap 的募集,有助于 N-甲基-d-天冬氨酸受体的下调

DOI:
10.1128/mcb.01618-12
复制
发表时间:
2013
影响因子:
5.3
通讯作者:
Alifragis P
Alifragis P
中科院分区:
生物学2区
文献类型:
--
作者:
Semerdjieva S;Abdul-Razak H;Salim S;Yáñez-Muñoz R;Chen P;Tarabykin V;Alifragis P

文献摘要

参考文献

被引文献

相似文献

N-甲基-d-天冬氨酸受体(NMDAR)在神经元能突触上的活性调节对于作为学习和记忆基础的某些形式的突触可塑性是必不可少的,并且还与神经毒性和神经退行性疾病相关。在这份报告中,我们调查的Src样衔接蛋白(Slap)在NMDA受体信号转导的作用。我们目前的数据表明,在解离的神经元培养物中,激活肝配蛋白(Eph)受体嵌合preclustered eph-Fc配体导致招聘的Slap和NMDA受体的Eph受体激活的网站。有趣的是,我们的数据表明,EphA受体的延长激活在募集Slap和NMDA受体方面与EphB受体的延长激活一样有效。使用已建立的异源系统,我们研究了Slap是否是NMDA受体信号传导的一个组成部分。我们的研究结果表明,Slap不改变NMDA受体的基线活性,不影响Src依赖的增强NMDA受体电流在异种卵母细胞。我们还证明了Slap减少了由HEK 293细胞中NMDAR激活引发的兴奋性毒性细胞死亡。最后,我们提出的证据表明,在存在的Slap的NMDA受体的水平降低发生在一个活动依赖性的方式,这表明,Slap是一种机制,稳态调节NMDA受体的水平的一部分。
Regulation of the activity ofN-methyl-d-aspartate receptors (NMDARs) at glutamatergic synapses is essential for certain forms of synaptic plasticity underlying learning and memory and is also associated with neurotoxicity and neurodegenerative diseases. In this report, we investigate the role of Src-like adaptor protein (Slap) in NMDA receptor signaling. We present data showing that in dissociated neuronal cultures, activation of ephrin (Eph) receptors by chimeric preclustered eph-Fc ligands leads to recruitment of Slap and NMDA receptors at the sites of Eph receptor activation. Interestingly, our data suggest that prolonged activation of EphA receptors is as efficient in recruiting Slap and NMDA receptors as prolonged activation of EphB receptors. Using established heterologous systems, we examined whether Slap is an integral part of NMDA receptor signaling. Our results showed that Slap does not alter baseline activity of NMDA receptors and does not affect Src-dependent potentiation of NMDA receptor currents inXenopusoocytes. We also demonstrate that Slap reduces excitotoxic cell death triggered by activation of NMDARs in HEK293 cells. Finally, we present evidence showing reduced levels of NMDA receptors in the presence of Slap occurring in an activity-dependent manner, suggesting that Slap is part of a mechanism that homeostatically modulates the levels of NMDA receptors.
DOI: 10.2741/1325
发表时间: 2004-05
期刊: Frontiers in bioscience : a journal and virtual library
影响因子: --
作者:
F. Irie;Yu Yamaguchi
通讯作者: F. Irie;Yu Yamaguchi
DOI: 10.1523/jneurosci.19-21-09538.1999
发表时间: 1999-11
期刊: The Journal of Neuroscience
影响因子: --
作者:
R. Gerlai;N. Shinsky;A. Shih;P. Williams;J. Winer;M. Armanini;B. Cairns;J. Winslow;Wei-qiang Gao;H. Phillips
通讯作者: R. Gerlai;N. Shinsky;A. Shih;P. Williams;J. Winer;M. Armanini;B. Cairns;J. Winslow;Wei-qiang Gao;H. Phillips
DOI: 10.1016/s0006-291x(02)00806-9
发表时间: 2002-08
影响因子: 3.1
作者:
You-jie Wang;S. Ota;H. Kataoka;M. Kanamori;Z. Li;H. Band;Masamitsu Tanaka;H. Sugimura
通讯作者: You-jie Wang;S. Ota;H. Kataoka;M. Kanamori;Z. Li;H. Band;Masamitsu Tanaka;H. Sugimura
酪氨酸激酶受体 REK7/EphA5 及其配体 AL-1/Ephrin-A5 对海马突触可塑性的调节
DOI: --
发表时间: 1998
影响因子: 3.5
作者:
Wei;N. Shinsky;M. Armanini;P. Moran;J;J. Mendoza;H. Phillips;J. Winslow;I. Caras
通讯作者: I. Caras
DOI: 10.1083/jcb.200501164
发表时间: 2005-07-18
期刊: The Journal of cell biology
影响因子: --
作者:
Myers MD;Dragone LL;Weiss A
通讯作者: Weiss A