Unique pathological tau conformers from Alzheimer's brains transmit tau pathology in nontransgenic mice.

Unique pathological tau conformers from Alzheimer's brains transmit tau pathology in nontransgenic mice.
复制标题

来自阿尔茨海默氏症大脑的独特病理tau构象体传播了非转基因小鼠的tau病理。

DOI:
10.1084/jem.20160833
复制
发表时间:
2016-11-14
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
Lee VM
Lee VM
中科院分区:
其他
文献类型:
--
作者:
Guo JL;Narasimhan S;Changolkar L;He Z;Stieber A;Zhang B;Gathagan RJ;Iba M;McBride JD;Trojanowski JQ;Lee VM

文献摘要

参考文献

被引文献

相似文献

来自AD脑的tau原纤维的脑内接种导致WT小鼠中tau包涵体的诱导和增殖。细丝蛋白tau聚集体是许多神经退行性疾病(包括阿尔茨海默病(AD))中的标志性病变。细胞培养和动物研究表明,tau纤维可以进行细胞间传递和可溶性tau的种子聚集,但这种现象仅在过表达tau的模型中得到了有力的证明。在这项研究中,我们发现,脑内接种从AD脑中纯化的tau纤维(AD-tau),而不是合成的tau纤维,导致在非转基因小鼠的解剖学连接的脑区域中形成丰富的tau包涵体。通过AD-tau接种的重组人tau揭示了与合成tau原纤维不同的独特构象特征,这可能是接种生理水平的tau以聚集的差异效力的基础。因此,我们的研究建立了一个散发性tau蛋白病的小鼠模型,并指出了人工产生的tau原纤维与AD大脑中发育的真实tau原纤维之间的重要差异。
Intracerebral inoculation of tau fibrils from AD brains results in the induction and propagation of tau inclusions in WT mice. Filamentous tau aggregates are hallmark lesions in numerous neurodegenerative diseases, including Alzheimer’s disease (AD). Cell culture and animal studies showed that tau fibrils can undergo cell-to-cell transmission and seed aggregation of soluble tau, but this phenomenon was only robustly demonstrated in models overexpressing tau. In this study, we found that intracerebral inoculation of tau fibrils purified from AD brains (AD-tau), but not synthetic tau fibrils, resulted in the formation of abundant tau inclusions in anatomically connected brain regions in nontransgenic mice. Recombinant human tau seeded by AD-tau revealed unique conformational features that are distinct from synthetic tau fibrils, which could underlie the differential potency in seeding physiological levels of tau to aggregate. Therefore, our study establishes a mouse model of sporadic tauopathies and points to important differences between tau fibrils that are generated artificially and authentic ones that develop in AD brains.
DOI: 10.1074/jbc.m114.589309
发表时间: 2015-01-09
期刊: The Journal of biological chemistry
影响因子: --
作者:
Falcon B;Cavallini A;Angers R;Glover S;Murray TK;Barnham L;Jackson S;O'Neill MJ;Isaacs AM;Hutton ML;Szekeres PG;Goedert M;Bose S
通讯作者: Bose S
DOI: 10.1021/bi2004685
发表时间: 2011-05-24
期刊: BIOCHEMISTRY
影响因子: 2.9
作者:
Dinkel, Paul D.;Siddiqua, Ayisha;Margittai, Martin
通讯作者: Margittai, Martin
DOI: 10.1016/0896-6273(89)90210-9
发表时间: 1989-10-01
期刊: NEURON
影响因子: 16.2
作者:
GOEDERT, M;SPILLANTINI, MG;CROWTHER, RA
通讯作者: CROWTHER, RA
DOI: 10.1074/jbc.m110.209296
发表时间: 2011-04-29
影响因子: 4.8
作者:
Guo, Jing L.;Lee, Virginia M. -Y.
通讯作者: Lee, Virginia M. -Y.
DOI: 10.1038/nrmicro2650
发表时间: 2011-09-26
期刊: Nature reviews. Microbiology
影响因子: --
作者:
通讯作者: --