Detergent-insoluble Inclusion Constitutes the First Pathology in PFN1 Transgenic Rats.

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ID: 109419
2020
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Abstract
Mutation of profilin 1 (PFN1) can cause amyotrophic lateral sclerosis (ALS). To assess how PFN1 mutation causes the disease, we created transgenic rats with human genomic DNA that harbors both the coding and the regulatory sequences of the human PFN1 gene. Selected transgenic lines expressed human PFN1 with or without the pathogenic mutation C71G at a moderate and a comparable level and in the similar pattern of spatial and temporal expression to rat endogenous PFN1. The artificial effects of arbitrary transgene expression commonly observed in cDNA transgenic animals was minimized in PFN1 transgenic rats. Expression of the mutant, but not the wildtype, human PFN1 in rats recapitulated the cardinal features of ALS including the progressive loss of motor neurons and the subsequent denervation atrophy of skeletal muscles. Detergent-insoluble PFN1 inclusions were detected as the first pathology in otherwise asymptomatic transgenic rats expressing mutant human PFN1. The findings suggest that protein aggregation is involved in the neurodegeneration of ALS associated with PFN1 mutation. The resulting rat model is useful to mechanistic study on the ALS.
Reference Key
yuan2020detergentinsolublejournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Yuan, Guixiu;Cui, Shiquan;Chen, Xuan;Song, Haochang;Huang, Cao;Tong, Jianbin;Yuan, Zhenting;Yu, Lin;Xiong, Xingrui;Zhao, Jihe;Huang, Bo;Wu, Qinxue;Zhou, Yibo;Chen, Gong;Zhou, Hongxia;Xia, Xu-Gang;
Journal Journal of Neurochemistry
Year 2020
DOI
10.1111/jnc.15139
URL
Keywords
rat neurodegeneration aggregation als pfn1

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