Calcium-dependent alterations in dendritic architecture of hippocampal pyramidal neurons.

Calcium-dependent alterations in dendritic architecture of hippocampal pyramidal neurons.
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海马锥体神经元树突结构的钙依赖性改变。

DOI:
10.1097/00001756-199902250-00036
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发表时间:
1999
期刊:
影响因子:
1.7
通讯作者:
Kater,SB
Kater,SB
中科院分区:
医学4区
文献类型:
--
作者:
Meberg,PJ;Kossel,AH;Williams,CV;Kater,SB

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树突状树枝的形成及其机制对神经元的功能连通性和可塑性至关重要。我们使用聚焦电场局部提高了分离的海马锥体神经元单个树突轴中的钙水平,以建立一个可访问的系统来研究树突分支的形成,并测试钙作为可能参与树枝形成的内在信号的作用。丝状伪足的诱导在时间和空间上与诱导的钙升高有关。某些丝状伪足也加厚,并转化为树枝状分支。这些结果表明,钙介导的信号可以诱导树突中的分支,并描述了一个可用于研究驱动树突树枝形成的细胞内机制的系统。
Dendritic arbor formation and the underlying mechanisms are crucial for the functional connectivity and plasticity of neurons. We used a focal electric field to locally raise calcium levels in individual dendritic shafts of isolated hippocampal pyramidal neurons, in order to develop an accessible system for studying dendritic branch formation, and to test the role of calcium as an intrinsic signal that may participate in arborization. Filopodia were induced in a manner temporally and spatially related to induced calcium rises. Certain filopodia also thickened and were transformed into dendritic branches. These results suggest that calciummediated signaling can induce branching in dendrites, and describe an accessible system for studying the intracellular machinery that drives dendritic arborization.
DOI: 10.1091/mbc.6.11.1423
发表时间: 1995-11-01
影响因子: 3.3
作者:
MOON, A;DRUBIN, DG
通讯作者: DRUBIN, DG
DOI: 10.1006/dbio.1995.1285
发表时间: 1995-10-01
影响因子: 2.7
作者:
ERSKINE, L;MCCAIG, CD
通讯作者: MCCAIG, CD
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DOI: 10.1016/s0955-0674(05)80035-3
发表时间: 1990
影响因子: 7.5
作者:
Lankford,K;Cypher,C;Letourneau,P
通讯作者: Letourneau,P