Tau assemblies do not behave like independently acting prion-like particles in mouse neural tissue
Tau assemblies do not behave like independently acting prion-like particles in mouse neural tissue
复制标题
Tau 蛋白组装体的行为与小鼠神经组织中独立作用的朊病毒样颗粒不同
DOI:
10.1101/2021.01.13.426340
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Mukadam A
中科院分区:
文献类型:
--
作者:
Mukadam A
A fundamental property of infectious agents is their particulate nature: infectivity arises from independently-acting particles rather than as a result of collective action. Assemblies of the protein tau can exhibit seeding behaviour, potentially underlying the apparent spread of tau aggregation in many neurodegenerative diseases. Here we ask whether tau assemblies share with classical pathogens the characteristic of particulate behaviour. We used organotypic hippocampal slice cultures from P301S tau transgenic mice in order to precisely control the concentration of extracellular tau assemblies. Whilst untreated slices displayed no overt signs of pathology, exposure to tau assemblies could result in the formation of intraneuronal, hyperphosphorylated tau structures. However, seeding ability of tau assemblies did not titrate in a one-hit manner in neural tissue. The results suggest that seeding behaviour of tau only arises at supra-physiological concentrations, with implications for the interpretation of high-dose intracranial challenge experiments and the possible contribution of seeded aggregation to human disease.
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影响因子:
3.7
作者:
Blennow K
通讯作者:
Blennow K
DOI:
10.1073/pnas.1607215114
发表时间:
2017-01-17
影响因子:
11.1
作者:
McEwan, William A.;Falcon, Benjamin;James, Leo C.
通讯作者:
James, Leo C.
影响因子:
7.1
作者:
Z. Skachokova;Alfonso Martinisi;Martin Flach;F. Sprenger;Y. Naegelin;Viviane Steiner;M. Sollberger;A. Monsch;M. Goedert;M. Tolnay;D. Winkler
通讯作者:
D. Winkler
影响因子:
48
作者:
Schindelin, Johannes;Arganda-Carreras, Ignacio;Frise, Erwin;Kaynig, Verena;Longair, Mark;Pietzsch, Tobias;Preibisch, Stephan;Rueden, Curtis;Saalfeld, Stephan;Schmid, Benjamin;Tinevez, Jean-Yves;White, Daniel James;Hartenstein, Volker;Eliceiri, Kevin;Tomancak, Pavel;Cardona, Albert
通讯作者:
Cardona, Albert
影响因子:
2.9
作者:
Furcila, Diana;Dominguez-Alvaro, Marta;Alonso-Nanclares, Lidia
通讯作者:
Alonso-Nanclares, Lidia