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A Novel Astrocyte-Neuron Interaction to Control Complex Animal Behavior
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作者 helmut kettenmann 《Neuroscience Bulletin》 2025年第2期352-354,共3页
A recent publication by Zhou et al.[1]in Neuron demonstrates that a specific interaction between astrocytes and a subtype of neurons has an influence on complex animal behavior,namely risk assessment.The majority of n... A recent publication by Zhou et al.[1]in Neuron demonstrates that a specific interaction between astrocytes and a subtype of neurons has an influence on complex animal behavior,namely risk assessment.The majority of neuroscientists analyzing the molecular and cellular substrate of behavior focus on neuronal circuits.Glial cells were originally described by Rudolf Virchow and the name glia refers to the Greek word for glue or putty.Thus,glial cells were long thought to represent simply the filling stuff of the brain.This view has changed dramatically in the last decades.The three major types of glial cells of the central nervous system fulfll diverse functions.Oligodendrocytes are the myelinforming cells and it has become evident that they are plastic and are able to influence neuronal connectivity.Microglia are the immune cells of the brain and interact with synapses during development,in plasticity,and very prominently in any disease of the nervous system. 展开更多
关键词 complex animal behavior NEURON glial cells molecular cellular substrate molecular cellular substrate behavior ASTROCYTE INTERACTION risk assessment
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Oligodendrocytes in Mouse Corpus Callosum are Coupled Via Gap Junction Channels Formed by Connexin47 and Connexin32 被引量:2
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作者 Marta Maglione Oliver Tress +4 位作者 Brigitte Haas Khalad Karram Jacqueline Trotter Klaus Willecke helmut kettenmann 《神经损伤与功能重建》 2010年第3期189-203,共15页
已有的超微结构研究显示,白质中的少突胶质细胞和星形胶质细胞之间存在缝隙连接,但少突胶质细胞之间不存在缝隙连接,虽然体外培养的少突胶质细胞可形成功能性缝隙连接。本文研究新生小鼠胼胝体急性脑片中的少突胶质细胞的功能性连接。... 已有的超微结构研究显示,白质中的少突胶质细胞和星形胶质细胞之间存在缝隙连接,但少突胶质细胞之间不存在缝隙连接,虽然体外培养的少突胶质细胞可形成功能性缝隙连接。本文研究新生小鼠胼胝体急性脑片中的少突胶质细胞的功能性连接。以全细胞膜片钳技术用生物胞素(一种可渗透的缝隙连接示踪剂)标记少突胶质细胞。平均61个细胞为链霉亲和素-Cy3标记的生物胞素阳性。约77%的连结细胞表达少突胶质细胞标志蛋白CNPase阳性染色,9%表达星形胶质细胞标志蛋白GFAP阳性,14%为CNPase和GFAP阴性。后者的大部分表达Olig2和一些NG2(少突胶质细胞前体细胞的标志物)。少突胶质细胞表达Cx47、Cx32和Cx29,星形胶质细胞表达Cx43和Cx30。在Cx47敲除小鼠中,连结细胞的数量减少80%。单独删除Cx32或Cx29并不能显著减少连结细胞的数量,但Cx32/Cx47双缺陷小鼠中没有观察到相互连结的细胞。Cx47敲除完全消除了少突胶质细胞与星形胶质细胞间的耦联。在Cx43敲除动物中,少突胶质细胞-星形胶质细胞间连接仍然存在,但与少突胶质细胞前体细胞间的耦联没有被观察到。在Cx43/Cx30双敲除小鼠中,少突胶质细胞-星形胶质细胞连接几乎不存在。解开连结的少突胶质细胞显示为较高的膜输入电阻。本文认为,白质中的少突胶质细胞依靠Cx47和Cx32的表达形成功能性的合胞体,而星形胶质蛋白缝隙连接蛋白的表达能提升此网络的大小。 展开更多
关键词 少突胶质细胞 缝隙连接 星形胶质细胞 髓鞘 NG2 OLIG2
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EDITORIAL:GLIA at 20 Years
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作者 Bruce R.Ransom helmut kettenmann 《神经损伤与功能重建》 2008年第2期68-71,共4页
The first issue of GLIA appeared 20 years ago.The journal will celebrate this land-mark quietly,but nonetheless it is with a great deal of pride and a certain amount of amazement that we look back over these two event... The first issue of GLIA appeared 20 years ago.The journal will celebrate this land-mark quietly,but nonetheless it is with a great deal of pride and a certain amount of amazement that we look back over these two eventful decades.This epoch encapsulates the blossoming of glial research into a mainstream area of neuroscience.In fact,it would be virtually impossible for someone not scientifically active in the mid-80s to appreciate how limited our understanding of these cells was at the time.The early years of GLIA,however,provide a suitable time capsule for that period and serve as a useful reminder of how some of today's "big ideas" developed.That GLIA played a role,however modest,in advancing what is now one of the most exciting fields of brain research seems worth noting. 展开更多
关键词 神经胶质 发展历史 生物技术 临床分析
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