GSK3 and KIF5 regulate activity-dependent sorting of gephyrin between axons and dendrites.
GSK3 and KIF5 regulate activity-dependent sorting of gephyrin between axons and dendrites.
复制标题
GSK3 和 KIF5 调节轴突和树突之间 gephyrin 的活性依赖性排序
DOI:
10.1016/j.ejcb.2015.01.005
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发表时间:
2015
影响因子:
6.6
通讯作者:
Kneussel M
中科院分区:
文献类型:
--
作者:
Rathgeber L;Gromova KV;Schaefer I;Breiden P;Lohr C;Kneussel M
The kinesin KIF5 transports neuronal cargoes into axons and dendrites. Isolated KIF5 motor domains preferentially move into axons, however KIF5 binding to GRIP1 or gephyrin drives the motor into dendrites, to deliver AMPA receptors (AMPARs) or glycine receptors (GlyRs), respectively. At postsynaptic sites, gephyrin forms a multimeric scaffold to anchor GlyRs and GABAAreceptors (GABAARs) in apposition to inhibitory presynaptic terminals. Here, we report the unexpected observation that increased intracellular calcium through chronic activation of AMPARs, steers a newly synthesized gephyrin fusion protein (tomato-gephyrin) to axons and interferes with its normal delivery into dendrites of cultured neurons. Axonal gephyrin clusters were not apposed to presynaptic terminals, but colocalized with GlyRs and neuroligin-2 (NLG2). Notably, functional blockade of glycogen synthase kinase-3 (GSK3) and KIF5 normalized gephyrin missorting into the axonal compartment. In contrast, mutagenesis of gephyrin S270, a GSK3 target, did not contribute to axo-dendritic sorting. Our data are consistent with previous observations, which report regulation of kinesin motility through GSK3 activity. They suggest that GSK3 regulates the sorting of GlyR/gephyrin and NLG2 complexes in a KIF5-dependent manner.
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影响因子:
25.7
作者:
Ibrahim SH;Akazawa Y;Cazanave SC;Bronk SF;Elmi NA;Werneburg NW;Billadeau DD;Gores GJ
通讯作者:
Gores GJ
DOI:
10.1083/jcb.200506066
发表时间:
2006-01-30
期刊:
The Journal of cell biology
影响因子:
--
作者:
Maas C;Tagnaouti N;Loebrich S;Behrend B;Lappe-Siefke C;Kneussel M
通讯作者:
Kneussel M
DOI:
--
发表时间:
1993
期刊:
The Journal of comparative neurology
影响因子:
--
作者:
E. Soriano;Albert Martı́nez;I. Fariñas;M. Frotscher
通讯作者:
M. Frotscher
影响因子:
16.2
作者:
Poulopoulos, Alexandros;Aramuni, Gayane;Varoqueaux, Frederique
通讯作者:
Varoqueaux, Frederique
影响因子:
56.9
作者:
Heine, Martin;Groc, Laurent;Choquet, Daniel
通讯作者:
Choquet, Daniel