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多系统萎缩的动物模型。

Animal models of multiple system atrophy.

机构信息

Institut des Maladies Neurodégénératives, Université de Bordeaux, UMR 5293, F-33000 Bordeaux, France.

出版信息

Neuroscience. 2012 Jun 1;211:77-82. doi: 10.1016/j.neuroscience.2011.09.044. Epub 2011 Sep 25.

Abstract

Multiple system atrophy (MSA) is a sporadic adult-onset neurodegenerative disorder clinically characterized by a variable combination of dysautonomia, levodopa-unresponsive parkinsonian and cerebellar symptoms. Neurodegeneration in MSA occurs in the substantia nigra, putamen, inferior olive, pontine and brainstem nuclei, as well as intermediolateral cell column of the spinal cord. MSA is recognized as a synucleinopathy due to the accumulation of insoluble alpha-synuclein in oligodendroglial cytoplasmic inclusions. Several animal models have been developed in order to reproduce various clinical and pathological features of MSA. Using "double toxin-double lesion" or "single toxin-double lesion", neurotoxin-based models were designed in rats, mice and non-human primates to reproduce the neuropathology of MSA in the nigrostriatal system while gene-based models were developed in mice to reproduce the accumulation of insoluble alpha-synuclein in oligodendrocytes. Both approaches have then been merged to create optimized, dual-hit models. This review describes the different animal models of MSA, their respective advantages and limitations and their usefulness to decipher the pathophysiology of MSA then to define efficient symptomatic and disease-modifying therapies. This article is part of a Special Issue entitled: Neuroscience Disease Models.

摘要

多系统萎缩(MSA)是一种散发性成年起病的神经退行性疾病,临床上以自主神经功能障碍、左旋多巴反应性帕金森病和小脑症状的可变组合为特征。MSA 的神经退行性变发生在黑质、壳核、下橄榄核、脑桥和脑干核以及脊髓的中间外侧细胞柱。由于不溶性α-突触核蛋白在少突胶质细胞细胞质包涵体中的积累,MSA 被认为是一种突触核蛋白病。为了再现 MSA 的各种临床和病理特征,已经开发了几种动物模型。使用“双重毒素-双重损伤”或“单一毒素-双重损伤”,在大鼠、小鼠和非人灵长类动物中设计了基于神经毒素的模型,以再现黑质纹状体系统中的 MSA 神经病理学,而基于基因的模型则在小鼠中开发,以再现不溶性α-突触核蛋白在少突胶质细胞中的积累。这两种方法随后被合并,以创建优化的双重打击模型。这篇综述描述了 MSA 的不同动物模型,它们各自的优点和局限性,以及它们对破译 MSA 病理生理学然后定义有效的症状和疾病修饰治疗的有用性。本文是题为“神经科学疾病模型”的特刊的一部分。

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