首页> 美国卫生研究院文献>Frontiers in Cellular Neuroscience >Mechanisms and Role of Dendritic Membrane Trafficking for Long-Term Potentiation
【2h】

Mechanisms and Role of Dendritic Membrane Trafficking for Long-Term Potentiation

机译:树突状膜贩运长期增强的机制和作用。

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Long-term potentiation (LTP) of excitatory synapses is a major form of plasticity for learning and memory in the central nervous system. While the molecular mechanisms of LTP have been debated for decades, there is consensus that LTP induction activates membrane trafficking pathways within dendrites that are essential for synapse growth and strengthening. Current models suggest that key molecules for synaptic potentiation are sequestered within intracellular organelles, which are mobilized by synaptic activity to fuse with the plasma membrane following LTP induction. While the identity of the factors mobilized to the plasma membrane during LTP remain obscure, the field has narrowly focused on AMPA-type glutamate receptors. Here, we review recent literature and present new experimental data from our lab investigating whether AMPA receptors trafficked from intracellular organelles directly contribute to synaptic strengthening during LTP. We propose a modified model where membrane trafficking delivers distinct factors that are required to maintain synapse growth and AMPA receptor incorporation following LTP. Finally, we pose several fundamental questions that may guide further inquiry into the role of membrane trafficking for synaptic plasticity.
机译:兴奋性突触的长期增强(LTP)是中枢神经系统学习和记忆的可塑性的主要形式。虽然LTP的分子机制已经争论了数十年,但已经达成共识,即LTP诱导可激活树突中的膜运输途径,这对于突触的生长和增强至关重要。当前模型表明,用于突触增强的关键分子被隔离在细胞内细胞器内,细胞内细胞器通过突触活性而动员,以在LTP诱导后与质膜融合。虽然在LTP期间动员到质膜的因素的身份仍然不清楚,但该领域仅集中于AMPA型谷氨酸受体。在这里,我们回顾了最近的文献,并提供了来自我们实验室的新实验数据,该实验研究了从细胞内细胞器贩运的AMPA受体是否直接有助于LTP期间的突触增强。我们提出了一种改良的模型,其中膜运输提供了在LTP之后维持突触生长和AMPA受体结合所需的独特因素。最后,我们提出了几个基本问​​题,可以指导进一步探讨膜运输在突触可塑性中的作用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号