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Perineuronal Nets: Old Structures, New Functions

delete2026-02-26
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PRE
AI
B
Bhanu P. Tewari
L
Lata Chaunsali
H
Harald Sontheimer
DOI:10.1177/10738584261421180delete
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摘要

摘要

En 中文
神经周网(PNNs)是形态独特的细胞外基质聚集物,主要包绕大脑中的快放电GABA能神经元。PNNs由Camilo Golgi于19世纪末发现,现已被认为是发育过程中稳定突触的重要结构。特别是在体感皮层中,PNNs确保依赖活动的感官地图布线在整个生命周期中保持稳定。尽管数十年来对PNNs的研究几乎完全集中在它们在发育中的作用上,但近期关于神经疾病中PNNs的研究已识别出其新型功能,并提供了令人信服的证据,表明PNNs的破坏可能是癫痫、胶质瘤和阿尔茨海默病等疾病的主要促成因素。对疾病中PNNs的研究也为PNNs在正常和患病脑中的动态重塑以及通过靶向PNNs调节疾病病因或表现的能力提供了大量信息。在本篇文献综述中,我们重点关注近期在健康脑中发现的PNNs功能,以及PNNs的变化如何与包括癫痫、胶质瘤和阿尔茨海默病在内的神经疾病存在因果关系。详细讨论的具体新型功能包括通过以下方式调节神经元放电:1) 改变膜电容,2) 静电离子过滤,以及3) 在三联突触上协助星形胶质细胞清除谷氨酸和K + 。
Keyword:
Perineuronal nets
neuronal stability
synaptic regulation
neurologic diseases
extracellular matrix

期刊

T
The Neuroscientist
IF:
0
论文数:
17
被引数:
0

机构

T
texas a and m university
学者数:
41
论文数: 17
被引数: 0
U
university of virginia
学者数:
4.4K
论文数: 2.0K
被引数: 0
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