An ESCRT module is required for neuron pruning.

An ESCRT module is required for neuron pruning.
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DOI:
10.1038/srep08461
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发表时间:
2015-02-13
期刊:
影响因子:
4.6
通讯作者:
Williams DW
Williams DW
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Loncle N;Agromayor M;Martin-Serrano J;Williams DW

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神经回路通过功能和结构的变化来完善。通过大规模修剪进行的结构重塑发生在相对长的神经元分支从它们的亲本神经元被切除并通过局部变性被去除的情况下。到目前为止,执行这种分支切断事件的分子机制仍然知之甚少。在这里,我们揭示了内体分选复合物所需的运输(ESCRT)机制在神经元重塑过程中的作用。我们的数据表明,一个特定的ESCRT修剪模块,包括ESCRT-I和ESCRT-III复合物的成员,但不是ESCRT-0或ESCRT-II,需要在修剪过程中的神经突切断事件。此外,我们表明,ESCRT模块需要一个直接的,在体内,灌木/CHMP 4 B和辅助蛋白近视/HD-PTP之间的相互作用。
Neural circuits are refined by both functional and structural changes. Structural remodeling by large-scale pruning occurs where relatively long neuronal branches are cut away from their parent neuron and removed by local degeneration. Until now, the molecular mechanisms executing such branch severing events have remained poorly understood. Here, we reveal a role for the Endosomal Sorting Complex Required for Transport (ESCRT) machinery during neuronal remodeling. Our data show that a specific ESCRT pruning module, including members of the ESCRT-I and ESCRT-III complexes, but not ESCRT-0 or ESCRT-II, are required for the neurite scission event during pruning. Furthermore we show that this ESCRT module requires a direct, in vivo, interaction between Shrub/CHMP4B and the accessory protein Myopic/HD-PTP.
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