Reduction of Nuak1 Decreases Tau and Reverses Phenotypes in a Tauopathy Mouse Model.

Reduction of Nuak1 Decreases Tau and Reverses Phenotypes in a Tauopathy Mouse Model.
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DOI:
10.1016/j.neuron.2016.09.022
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发表时间:
2016-10-19
期刊:
影响因子:
16.2
通讯作者:
Zoghbi HY
Zoghbi HY
中科院分区:
医学1区
文献类型:
--
作者:
Lasagna-Reeves CA;de Haro M;Hao S;Park J;Rousseaux MW;Al-Ramahi I;Jafar-Nejad P;Vilanova-Velez L;See L;De Maio A;Nitschke L;Wu Z;Troncoso JC;Westbrook TF;Tang J;Botas J;Zoghbi HY

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Many neurodegenerative proteinopathies share a common pathogenic mechanism: the abnormal accumulation of disease-related proteins. As growing evidence indicates that reducing the steady-state levels of disease-causing proteins mitigates neurodegeneration in animal models, we developed a strategy to screen for genes that decrease the levels of tau, whose accumulation contributes to the pathology of both Alzheimer’s disease (AD) and progressive supranuclear palsy (PSP). Integrating parallel cell-based and Drosophila genetic screens, we discovered that tau levels are regulated by Nuak1, an AMPK-related kinase. Nuak1 stabilizes tau by phosphorylation specifically at Ser356. Inhibition of Nuak1 in fruit flies suppressed neurodegeneration in tau-expressing Drosophila, and Nuak1 haploinsufficiency rescued the phenotypes of a tauopathy mouse model. These results demonstrate that decreasing total tau levels is a valid strategy for mitigating tau-related neurodegeneration and reveal Nuak1 to be a novel therapeutic entry point for tauopathies.
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