MeCP2 in the nucleus accumbens contributes to neural and behavioral responses to psychostimulants.

MeCP2 in the nucleus accumbens contributes to neural and behavioral responses to psychostimulants.
复制标题

DOI:
10.1038/nn.2614
复制
发表时间:
2010-09
影响因子:
25
通讯作者:
West, Anne E.
West, Anne E.
中科院分区:
医学1区
文献类型:
--
作者:
Deng, Jie V.;Rodriguiz, Ramona M.;Hutchinson, Ashley N.;Kim, Il-Hwan;Wetsel, William C.;West, Anne E.

文献摘要

参考文献

被引文献

相似文献

MeCP2是一种甲基DNA结合的转录调节因子,参与中枢神经系统突触的发育和功能,但对MeCP2在刺激调节的行为可塑性中的作用尚不完全清楚。在这里,我们表明,急性病毒操纵的MeCP2表达在伏核(NAC)双向调节苯丙胺(AMPH)诱导的条件性位置偏爱。低形态的MeCP2突变小鼠的NAC GABA能突触数量增加,并表现出缺乏Amph诱导的NAC树突棘的结构可塑性。此外,在反复给药后,这些小鼠表现出纹状体即刻早期基因诱导性的可塑性不足。有趣的是,精神刺激剂在Ser421诱导MeCP2的磷酸化,Ser421是一个调节MeCP2的S抑制物功能的位点。选择性地在NAc的GABA能中间神经元中诱导磷酸化,其程度强烈地预测了行为敏化的程度。这些数据揭示了MeCP2在中脑皮质环路发育和调节精神刺激剂诱导的行为中的新角色。
MeCP2 is a methyl-DNA binding transcriptional regulator that contributes to the development and function of CNS synapses; however the requirement for MeCP2 in stimulus-regulated behavioral plasticity is not fully understood. Here we show that acute viral manipulation of MeCP2 expression in the Nucleus Accumbens (NAc) bidirectionally modulates amphetamine (AMPH)-induced conditioned place preference. Hypomorphic Mecp2 mutant mice have an increased number of NAc GABAergic synapses and show deficient AMPH-induced structural plasticity of NAc dendritic spines. Furthermore these mice show deficient plasticity of striatal immediate early gene inducibility following repeated AMPH administration. Intriguingly, psychostimulants induce phosphorylation of MeCP2 at Ser421, a site that regulates MeCP2's function as a repressor. Phosphorylation is selectively induced in GABAergic interneurons of the NAc, and its extent strongly predicts the degree of behavioral sensitization. These data reveal novel roles for MeCP2 in both mesolimbocortical circuit development and in the regulation of psychostimulant-induced behaviors.
DOI: 10.1073/pnas.89.13.5764
发表时间: 1992-07-01
影响因子: 11.1
作者:
HOPE, B;KOSOFSKY, B;NESTLER, EJ
通讯作者: NESTLER, EJ
DOI: 10.1016/j.neuron.2009.06.007
发表时间: 2009-07-16
期刊: NEURON
影响因子: 16.2
作者:
Huang, Yanhua H.;Lin, Ying;Mu, Ping;Lee, Brian R.;Brown, Travis E.;Wayman, Gary;Marie, Helene;Liu, Wenhua;Yan, Zhen;Sorg, Barbara A.;Schlueter, Oliver M.;Zukin, R. Suzanne;Dong, Yan
通讯作者: Dong, Yan
DOI: 10.1126/science.1067081
发表时间: 2002-02-01
期刊: SCIENCE
影响因子: 56.9
作者:
Lois, C;Hong, EJ;Baltimore, D
通讯作者: Baltimore, D
DOI: 10.1093/hmg/ddi016
发表时间: 2005-01-15
影响因子: 3.5
作者:
Moretti, P;Bouwknecht, JA;Zoghbi, HY
通讯作者: Zoghbi, HY
DOI: 10.1073/pnas.0506071102
发表时间: 2005-08-30
影响因子: 11.1
作者:
Dani, VS;Chang, Q;Nelson, SB
通讯作者: Nelson, SB