Dopamine signaling negatively regulates striatal phosphorylation of Cdk5 at tyrosine 15 in mice.

Dopamine signaling negatively regulates striatal phosphorylation of Cdk5 at tyrosine 15 in mice.
复制标题

DOI:
10.3389/fncel.2013.00012
复制
发表时间:
2013
影响因子:
5.3
通讯作者:
Goto S
Goto S
中科院分区:
医学2区
文献类型:
--
作者:
Yamamura Y;Morigaki R;Kasahara J;Yokoyama H;Tanabe A;Okita S;Koizumi H;Nagahiro S;Kaji R;Goto S

文献摘要

参考文献

被引文献

相似文献

纹状体功能取决于多巴胺和谷氨酸神经传递之间的活动平衡。谷氨酸输入激活细胞周期蛋白依赖性激酶5(Cdk 5),其通过磷酸化纹状体中Thr 75处的DARPP-32(多巴胺和cAMP调节的磷蛋白,32 kDa)来抑制突触后多巴胺信号传导。已知c-Abelson酪氨酸激酶(c-Abl)在Tyr 15处磷酸化Cdk 5(Tyr 15-Cdk 5),从而促进Cdk 5活性。我们在这里报告,Cdk 5与Tyr 15磷酸化(Cdk 5-pTyr 15)是丰富的小鼠纹状体,多巴胺能刺激抑制磷酸化的Tyr 15-Cdk 5通过D2类多巴胺受体。此外,在1-甲基-4-苯基-1,2,4,6-四氢吡啶(MPTP)小鼠模型中,多巴胺缺乏导致纹状体中Tyr 15-Cdk 5和Thr 75-DARPP-32的磷酸化增加,这可以通过给予L-3,4-二羟基苯丙氨酸和伊马替尼(STI-571)(一种选择性c-Abl抑制剂)来减弱。我们的研究结果表明,Cdk 5-pTyr 15与突触后多巴胺和谷氨酸信号通过c-Abl激酶活性在纹状体的功能链接。
Striatal functions depend on the activity balance between the dopamine and glutamate neurotransmissions. Glutamate inputs activate cyclin-dependent kinase 5 (Cdk5), which inhibits postsynaptic dopamine signaling by phosphorylating DARPP-32 (dopamine- and cAMP-regulated phosphoprotein, 32 kDa) at Thr75 in the striatum. c-Abelson tyrosine kinase (c-Abl) is known to phosphorylate Cdk5 at Tyr15 (Tyr15-Cdk5) and thereby facilitates the Cdk5 activity. We here report that Cdk5 with Tyr15 phosphorylation (Cdk5-pTyr15) is enriched in the mouse striatum, where dopaminergic stimulation inhibited phosphorylation of Tyr15-Cdk5 by acting through the D2 class dopamine receptors. Moreover, in the 1-methyl-4-phenyl-1,2,4,6-tetrahydropyridine (MPTP) mouse model, dopamine deficiency caused increased phosphorylation of both Tyr15-Cdk5 and Thr75-DARPP-32 in the striatum, which could be attenuated by administration of L-3,4-dihydroxyphenylalanine and imatinib (STI-571), a selective c-Abl inhibitor. Our results suggest a functional link of Cdk5-pTyr15 with postsynaptic dopamine and glutamate signals through the c-Abl kinase activity in the striatum.
DOI: 10.3389/fnbeh.2011.00071
发表时间: 2011
影响因子: 3
作者:
Feyder M;Bonito-Oliva A;Fisone G
通讯作者: Fisone G
DOI: 10.1371/journal.pcbi.0020176
发表时间: 2006-12-22
影响因子: 4.3
作者:
Fernandez E;Schiappa R;Girault JA;Le Novère N
通讯作者: Le Novère N
DOI: 10.1523/jneurosci.0852-07.2007
发表时间: 2007-06-27
影响因子: 5.3
作者:
Santini, Emanuela;Valjent, Emmanuel;Fisone, Gilberto
通讯作者: Fisone, Gilberto
DOI: 10.1016/j.neuroscience.2010.06.072
发表时间: 2010-10-13
期刊: NEUROSCIENCE
影响因子: 3.3
作者:
Sako, W.;Morigaki, R.;Goto, S.
通讯作者: Goto, S.
DOI: 10.1007/s11011-010-9191-0
发表时间: 2010-06-01
影响因子: 3.6
作者:
Yokoyama, Hironori;Yano, Ryohei;Araki, Tsutomu
通讯作者: Araki, Tsutomu