Modulation of ERK1/MAPK3 potentiates ERK nuclear signalling, facilitates neuronal cell survival and improves memory in mouse models of neurodegenerative disorders

Modulation of ERK1/MAPK3 potentiates ERK nuclear signalling, facilitates neuronal cell survival and improves memory in mouse models of neurodegenerative disorders
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ERK1/MAPK3 的调节可增强 ERK 核信号传导,促进神经元细胞存活并改善神经退行性疾病小鼠模型的记忆力

DOI:
10.1101/496141
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发表时间:
2018
期刊:
--
影响因子:
--
通讯作者:
Indrigo M
Indrigo M
中科院分区:
--
文献类型:
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作者:
Indrigo M

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细胞信号传导机制是神经元活动的核心,它们的失调可能导致神经退行性过程和相关的认知能力下降。到目前为止,主要的努力都是针对疾病特定途径的解剖,但仍未实现开发精准医学策略的承诺。通过一种不同的方法,我们发现神经元ERK信号的选择性遗传增强可以防止小鼠大脑中vitroandin vivoin的细胞死亡,而ERK衰减则相反。这种神经保护作用也可以通过模拟ERK1 MAP激酶丧失的细胞渗透性肽在药理学上诱导,导致ERK2介导的核细胞信号传导选择性增强。这种药物治疗可以预防亨廷顿氏症(HD)、阿尔茨海默氏症(AD)和帕金森病(PD)小鼠模型的神经变性。重要的是,ERK2信号的选择性增强促进了结构和突触的可塑性,增强了健康小鼠的认知能力,并挽救了AD和HD模型中的轻度认知障碍。总之,我们的观察确实代表了多种神经退行性疾病共享分子机制的一个显著例子,也是神经增强的潜在有价值的治疗靶点。
Cell signalling mechanisms are central to neuronal activity and their dysregulation may lead to neurodegenerative processes and associated cognitive decline. So far, a major effort has been directed toward the dissection of disease specific pathways with the still unmet promise to develop precision medicine strategies. With a different approach, here we show that a selective genetic potentiation of neuronal ERK signalling prevents cell deathin vitroandin vivoin the mouse brain while ERK attenuation does the opposite. This neuroprotective effect can also be induced pharmacologically by a cell permeable peptide mimicking the loss of ERK1 MAP kinase, leading to a selective enhancement of ERK2 mediated nuclear cell signalling. The drug treatment prevents neurodegeneration in mouse models of Huntington’s (HD), Alzheimer’s (AD), and Parkinson’s disease (PD). Importantly, the selective potentiation of ERK2 signalling facilitates both structural and synaptic plasticity, enhances cognition in healthy mice and rescues mild cognitive impairments in both models of AD and HD. Altogether, our observation truly represents a remarkable example of a shared molecular mechanism across multiple neurodegenerative disorders and a potentially valuable therapeutic target for neuro-enhancement.
细胞外调节的激酶:从RAS到ERK底物的信号传导以控制生物学结果。
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