Cornichons control ER export of AMPA receptors to regulate synaptic excitability.

Cornichons control ER export of AMPA receptors to regulate synaptic excitability.
复制标题

DOI:
10.1016/j.neuron.2013.07.028
复制
发表时间:
2013-10-02
期刊:
影响因子:
16.2
通讯作者:
Maricq AV
Maricq AV
中科院分区:
医学1区
文献类型:
--
作者:
Brockie PJ;Jensen M;Mellem JE;Jensen E;Yamasaki T;Wang R;Maxfield D;Thacker C;Hoerndli F;Dunn PJ;Tomita S;Madsen DM;Maricq AV

文献摘要

参考文献

被引文献

相似文献

中枢突触的突触通讯强度取决于离子型谷氨酸受体的数量,特别是由激动剂AMPA(AMPAR)门控的类别。Cornichon蛋白是进化上保守的内质网货物衔接子,当在异源细胞中共表达时,可改变脊椎动物AMPAR的性质。然而,角突对行为和体内神经系统功能的贡献尚未确定。在这里,我们采取遗传的方法来研究这些问题,通过研究CNI-1 -唯一的cornichon同源C。优雅的CNI-1突变体超反向,一种与增加的突触能突触传递相关的表型。与这种行为相一致,我们发现cni-1突变体中的谷氨酸门控电流较大,AMPAR数量相应增加。此外,我们在过表达CNI-1或脊椎动物同源物的转基因蠕虫中观察到相反的表型。在重建的研究中,我们提供了一个进化上保守的作用cornichons在调节脊椎动物和无脊椎动物的AMPAR出口的支持。
The strength of synaptic communication at central synapses depends on the number of ionotropic glutamate receptors, particularly the class gated by the agonist AMPA (AMPARs). Cornichon proteins, evolutionarily conserved endoplasmic reticulum cargo adaptors, modify the properties of vertebrate AMPARs when coexpressed in heterologous cells. However, the contribution of cornichons to behavior and in vivo nervous system function has yet to be determined. Here, we take a genetic approach to these questions by studying CNI-1 – the sole cornichon homologue in C. elegans. cni-1 mutants hyper-reverse, a phenotype associated with increased glutamatergic synaptic transmission. Consistent with this behavior, we find larger glutamate-gated currents in cni-1 mutants with a corresponding increase in AMPAR number. Furthermore, we observe opposite phenotypes in transgenic worms that overexpress CNI-1 or vertebrate homologues. In reconstitution studies, we provide support for an evolutionarily conserved role for cornichons in regulating the export of vertebrate and invertebrate AMPARs.
DOI: 10.1016/j.conb.2011.12.006
发表时间: 2012-06
影响因子: 5.7
作者:
Anggono V;Huganir RL
通讯作者: Huganir RL
DOI: 10.1091/mbc.e07-11-1120
发表时间: 2008-07-01
影响因子: 3.3
作者:
Chun, Denise K.;McEwen, Jason M.;Kaplan, Joshua M.
通讯作者: Kaplan, Joshua M.
DOI: 10.1016/j.neuron.2010.11.026
发表时间: 2010-12-22
期刊: NEURON
影响因子: 16.2
作者:
Kato, Akihiko S.;Gill, Martin B.;Ho, Michelle T.;Yu, Hong;Tu, Yuan;Siuda, Edward R.;Wang, He;Qian, Yue-Wei;Nisenbaum, Eric S.;Tomita, Susumu;Bredt, David S.
通讯作者: Bredt, David S.
DOI: 10.1016/j.jneumeth.2005.11.016
发表时间: 2006-06-30
影响因子: 3
作者:
Gottschalk, A;Schafer, WR
通讯作者: Schafer, WR
DOI: 10.1016/0014-5793(95)01361-x
发表时间: 1995-12-18
期刊: FEBS LETTERS
影响因子: 3.5
作者:
Leber, A;Hrastnik, C;Daum, G
通讯作者: Daum, G