Delta-catenin is required for the maintenance of neural structure and function in mature cortex in vivo.

Delta-catenin is required for the maintenance of neural structure and function in mature cortex in vivo.
复制标题

DOI:
10.1016/j.neuron.2009.09.026
复制
发表时间:
2009-11-12
期刊:
影响因子:
16.2
通讯作者:
Trachtenberg, Joshua T.
Trachtenberg, Joshua T.
中科院分区:
医学1区
文献类型:
--
作者:
Matter, Cheryl;Pribadi, Mochtar;Liu, Xin;Trachtenberg, Joshua T.

文献摘要

参考文献

被引文献

相似文献

Delta(™)-连环蛋白是粘附连接复合体的脑特异性成员,定位于突触后和树突区室。这种蛋白质可能对正常的认知功能至关重要;它的半合子丢失与严重的精神发育迟滞综合征(Cri-du-Chat)有关,并且它直接与早老素-1(PS1)相互作用,早老素-1(PS1)是家族性阿尔茨海默病中最常突变的蛋白质。缺乏正常β-连环蛋白的小鼠在学习和记忆任务以及突触可塑性方面表现出严重的损伤。在这里,我们研究了缺乏β-连环蛋白的小鼠体内的树突结构和皮质功能。我们发现,在大脑皮层的5周龄小鼠树突的复杂性,棘密度,和皮质的反应是相似的突变体和同窝对照组之间,此后,突变小鼠经历进行性树突回缩,减少棘密度和稳定性,并伴随减少皮质的反应。我们的结果表明,β-连环蛋白调节成熟皮质中树突和树突棘的维持,但似乎不是发育期间这些结构的初始建立所必需的。
Delta (™)-catenin is a brain specific member of the adherens junction complex that localizes to the post-synaptic and dendritic compartments. This protein is likely critical for normal cognitive function; its hemizygous loss is linked to the severe mental retardation syndrome, Cri-du-Chat, and it directly interacts with Presenilin-1 (PS1), the protein most frequently mutated in familial Alzheimer's disease. Mice lacking normal ™-catenin display severe impairments in learning and memory tasks and synaptic plasticity. Here we examine dendritic structure and cortical function in vivo in mice lacking ™-catenin. We find that in cerebral cortex of 5-week-old mice dendritic complexity, spine density, and cortical responsiveness are similar between mutant and littermate controls; thereafter, mutant mice experience progressive dendritic retraction, a reduction in spine density and stability, and concomitant reductions in cortical responsiveness. Our results indicate that ™-catenin regulates the maintenance of dendrites and dendritic spines in mature cortex but does not appear to be necessary for the initial establishment of these structures during development.
DOI: 10.1038/nn.2255
发表时间: 2009-02
影响因子: 25
作者:
Chow, David K.;Groszer, Matthias;Pribadi, Mochtar;Machniki, Michal;Carmichael, S. Thomas;Liu, Xin;Trachtenberg, Joshua T.
通讯作者: Trachtenberg, Joshua T.
DOI: 10.1186/1475-925x-2-13
发表时间: 2003-05-17
影响因子: 3.9
作者:
Pologruto, Thomas A.;Sabatini, Bernardo L.;Svoboda, Karel
通讯作者: Svoboda, Karel
DOI: 10.1006/bbrc.1999.0364
发表时间: 1999-03-24
影响因子: 3.1
作者:
Ide, N;Hata, Y;Takai, Y
通讯作者: Takai, Y
DOI: 10.1016/j.cub.2004.08.065
发表时间: 2004-09-21
期刊: CURRENT BIOLOGY
影响因子: 9.2
作者:
Israely, I;Costa, RM;Liu, X
通讯作者: Liu, X
DOI: 10.1006/geno.1999.6090
发表时间: 2000-01-15
期刊: GENOMICS
影响因子: 4.4
作者:
Medina, M;Marinescu, RC;Kosik, KS
通讯作者: Kosik, KS