Dynamic remodeling of dendritic arbors in GABAergic interneurons of adult visual cortex.

Dynamic remodeling of dendritic arbors in GABAergic interneurons of adult visual cortex.
复制标题

DOI:
10.1371/journal.pbio.0040029
复制
发表时间:
2006-02
期刊:
影响因子:
9.8
通讯作者:
Nedivi E
Nedivi E
中科院分区:
生物学1区
文献类型:
--
作者:
Lee WC;Huang H;Feng G;Sanes JR;Brown EN;So PT;Nedivi E

文献摘要

参考文献

被引文献

相似文献

尽管成年人大脑的功能可塑性已有数十年的证据,但结构可塑性在其表现中的作用仍不清楚。为了研究神经元重塑的程度,发生在大脑中的日常基础上,我们使用了基于多光子的显微镜系统慢性在体内成像和重建的整个神经元在啮齿动物大脑皮层的浅层。在这里,我们展示了第一个明确的证据(据我们所知)成年神经元树突生长和重塑。在几个月的时间里,可以看到神经元伸展和收缩现有的分支,并在极少数情况下增加新的分支尖端。表现出动态乔木重排的神经元GABA阳性的非锥体中间神经元,而锥体细胞保持稳定。这些结果是一致的想法,树突状结构重塑是一个基板成人可塑性,他们建议,电路重排在成人皮质细胞类型的特定规则的限制。成年小鼠荧光标记神经元的慢性体内成像揭示了大脑皮层GABA能非锥体中间神经元树突的延伸和收缩。
Despite decades of evidence for functional plasticity in the adult brain, the role of structural plasticity in its manifestation remains unclear. To examine the extent of neuronal remodeling that occurs in the brain on a day-to-day basis, we used a multiphoton-based microscopy system for chronic in vivo imaging and reconstruction of entire neurons in the superficial layers of the rodent cerebral cortex. Here we show the first unambiguous evidence (to our knowledge) of dendrite growth and remodeling in adult neurons. Over a period of months, neurons could be seen extending and retracting existing branches, and in rare cases adding new branch tips. Neurons exhibiting dynamic arbor rearrangements were GABA-positive non-pyramidal interneurons, while pyramidal cells remained stable. These results are consistent with the idea that dendritic structural remodeling is a substrate for adult plasticity and they suggest that circuit rearrangement in the adult cortex is restricted by cell type–specific rules. Chronic in vivo imaging of fluorescent-labeled neurons in adult mice reveals extension and retraction of dendrites in GABAergic non-pyramidal interneurons of the cerebral cortex.
DOI: 10.1016/j.neuron.2005.01.003
发表时间: 2005-01-20
期刊: NEURON
影响因子: 16.2
作者:
Holtmaat, AJGD;Trachtenberg, JT;Svoboda, K
通讯作者: Svoboda, K
DOI: 10.1113/jphysiol.1970.sp009022
发表时间: 1970-01-01
影响因子: 5.5
作者:
HUBEL, DH;WIESEL, TN
通讯作者: WIESEL, TN
DOI: 10.1038/356150a0
发表时间: 1992-03-12
期刊: NATURE
影响因子: 64.8
作者:
GILBERT, CD;WIESEL, TN
通讯作者: WIESEL, TN
DOI: 10.1016/s0896-6273(00)00008-8
发表时间: 2000-07-01
期刊: NEURON
影响因子: 16.2
作者:
Feldman, DE
通讯作者: Feldman, DE
DOI: 10.1098/rstb.1977.0050
发表时间: 1977-01-01
期刊: PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES
影响因子: --
作者:
HUBEL, DH;WIESEL, TN;LEVAY, S
通讯作者: LEVAY, S