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.
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DOI:
10.1016/j.neuron.2009.09.026
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发表时间:
2009-11-12
期刊:
影响因子:
16.2
通讯作者:
Trachtenberg, Joshua T.
中科院分区:
文献类型:
--
作者:
Matter, Cheryl;Pribadi, Mochtar;Liu, Xin;Trachtenberg, Joshua T.
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.
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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.
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
影响因子:
9.2
作者:
Israely, I;Costa, RM;Liu, X
通讯作者:
Liu, X
影响因子:
4.4
作者:
Medina, M;Marinescu, RC;Kosik, KS
通讯作者:
Kosik, KS