A mouse model with widespread expression of the C9orf72-linked glycine-arginine dipeptide displays non-lethal ALS/FTD-like phenotypes.

A mouse model with widespread expression of the C9orf72-linked glycine-arginine dipeptide displays non-lethal ALS/FTD-like phenotypes.
复制标题

DOI:
10.1038/s41598-022-09593-z
复制
发表时间:
2022-04-04
期刊:
影响因子:
4.6
通讯作者:
Trotti D
Trotti D
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Verdone BM;Cicardi ME;Wen X;Sriramoji S;Russell K;Markandaiah SS;Jensen BK;Krishnamurthy K;Haeusler AR;Pasinelli P;Trotti D

文献摘要

参考文献

相似文献

与C9 orf 72肌萎缩性侧索硬化症和额颞叶痴呆(ALS/FTD)相关的六核苷酸G4 C2扩增的翻译产生了五种不同的二肽重复蛋白(DPR)物质,可产生毒性。关于单个DPR对疾病发病机制的贡献,还有很多需要了解。我们在这里表明,一个短的重复长度是足够的DPR聚-GR在体外赋予神经毒性,以前未观察到的现象。在我们的新型敲入小鼠模型中也报告了这种毒性,该模型的特征在于短长度poly-GR. We广泛的中枢神经系统(CNS)表达,在这些小鼠中观察到性别特异性慢性ALS/FTD样表型,包括轻度运动神经元损失,但没有TDP-43错误定位,以及运动和认知障碍。我们认为,这个模型可以作为基础的表型恶化,通过二次打击形式的压力。
Translation of the hexanucleotide G4C2 expansion associated with C9orf72 amyotrophic lateral sclerosis and frontotemporal dementia (ALS/FTD) produces five different dipeptide repeat protein (DPR) species that can confer toxicity. There is yet much to learn about the contribution of a single DPR to disease pathogenesis. We show here that a short repeat length is sufficient for the DPR poly-GR to confer neurotoxicity in vitro, a phenomenon previously unobserved. This toxicity is also reported in vivo in our novel knock-in mouse model characterized by widespread central nervous system (CNS) expression of the short-length poly-GR. We observe sex-specific chronic ALS/FTD-like phenotypes in these mice, including mild motor neuron loss, but no TDP-43 mis-localization, as well as motor and cognitive impairments. We suggest that this model can serve as the foundation for phenotypic exacerbation through second-hit forms of stress.
DOI: 10.1016/j.neuron.2013.02.004
发表时间: 2013-02-20
期刊: Neuron
影响因子: 16.2
作者:
Ash PE;Bieniek KF;Gendron TF;Caulfield T;Lin WL;Dejesus-Hernandez M;van Blitterswijk MM;Jansen-West K;Paul JW 3rd;Rademakers R;Boylan KB;Dickson DW;Petrucelli L
通讯作者: Petrucelli L
DOI: 10.1126/science.1254917
发表时间: 2014-09-05
期刊: Science (New York, N.Y.)
影响因子: --
作者:
Kwon I;Xiang S;Kato M;Wu L;Theodoropoulos P;Wang T;Kim J;Yun J;Xie Y;McKnight SL
通讯作者: McKnight SL
DOI: 10.1006/dbio.1999.9417
发表时间: 1999-10-01
影响因子: 2.7
作者:
Kisseberth, WC;Brettingen, NT;Sandgren, EP
通讯作者: Sandgren, EP
DOI: 10.15252/emmm.201910722
发表时间: 2020-04-29
影响因子: 11.1
作者:
Jensen, Brigid K.;Schuldi, Martin H.;Trotti, Davide
通讯作者: Trotti, Davide
DOI: 10.1002/glia.23710
发表时间: 2019-08-27
期刊: GLIA
影响因子: 6.2
作者:
Jha, Mithilesh Kumar;Lee, Youngjin;Morrison, Brett M.
通讯作者: Morrison, Brett M.