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在ALS中致病性蛋白质的细胞间传播:探索致病性波浪

F J Arnold¹, A D Nguyen², R S Bedlack²

¹Department of Pathology and Laboratory Medicine, University of California, Irvine, Irvine, CA, USA; Department of Neurology, Duke University School of Medicine, Durham, NC 27710, USA.

Neurobiology of disease

|July 2, 2023

概括

肌缩侧面硬化症 (ALS) 病理通过蛋白质聚合物的传播通过中枢神经系统传播. 了解TDP-43,SOD1和C9orf72蛋白质的细胞间运输机制对于ALS进展至关重要.

科学领域:

神经科学是一个神经科学.
分子生物学分子生物学
病理学病理学病理学

背景情况:

肌缩侧面硬化症 (ALS) 呈现出可预测的症状和病理的时空传播.
蛋白质聚合物,包括TDP-43,SOD1和C9orf72二重复蛋白 (DPR),是ALS的标志.
在大多数ALS病例中发现了TDP-43聚合物,而SOD1和C9orf72聚合物是特定于某些亚型的.

研究的目的:

检查ALS相关蛋白质聚合物的细胞间传播机制.
为了将病理性蛋白质的传播与ALS患者的疾病进展相关联.
为了研究TDP-43,SOD1和C9orf72 DPRs的独特传输特性.

主要方法:

关于ALS中蛋白质聚合和细胞间传输的文献综述.
对疾病传播和蛋白质病理学的时空模式的分析.
比较普类播种 (TDP-43,SOD1) 与一般疾病状态诱导 (C9orf72 DPRs).

主要成果:

病理性蛋白质的细胞间传播与ALS的连续疾病传播有关.
TDP-43和SOD1聚合物表现出类似子的播种能力.
C9orf72 DPRs似乎诱导和传递了一个更广泛的"疾病状态".
细胞间传输通过轴突传输,细胞外囊泡和巨细胞结合发生,涉及神经元和质细胞.

结论:

了解蛋白质聚合物传播的机制对于ALS研究至关重要.
细胞间传输的TDP-43,SOD1和C9orf72蛋白质有助于ALS的发病.
针对这些传播途径可能为ALS提供治疗策略.

关键词:

这就是ALS.从细胞传播到细胞传播.细胞内存症是指细胞内存症.细胞外囊泡 - 细胞外囊泡寡合化是指一种氧化物.

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