Advances in the Pathogenesis of Alzheimer's Disease: Focusing on Tau-Mediated Neurodegeneration

被引:54
作者
Yale Duan
Suzhen Dong
Feng Gu
Yinghe Hu
Zheng Zhao
机构
[1] Key Laboratory of Brain Functional Genomics, Ministry of Education, Shanghai Key Laboratory of Brain Functional Genomics, East China Normal University, Shanghai 200062
[2] Shanghai Engineering Research Center for Molecular Therapeutics and New Drug Development, East China Normal University
基金
中国国家自然科学基金;
关键词
A-beta; Alzheimer's disease; Intraneuronal neurofibrillary tangles; Tau; Tau hyperphosphorylation; Tauopathy;
D O I
10.1186/2047-9158-1-24
中图分类号
学科分类号
摘要
In addition to senile plaques and cerebral amyloid angiopathy, the hyperphosphorylation of tau protein and formation of intraneuronal neurofibrillary tangles (NFTs) represents another neuropathological hallmark in AD brain. Tau is a microtubule-associated protein and localizes predominantly in the axons of neurons with the primary function in maintaining microtubules stability. When the balance between tau phosphorylation and dephosphorylation is changed in favor of the former, tau is hyperphosphorylated and the level of the free tau fractions elevated. The hyperphosphorylation of tau protein and formation of NFTs represent a characteristic neuropathological feature in AD brain. We have discussed the role of Aβ in AD in our previous review, this review focused on the recent advances in tau-mediated AD pathology, mainly including tau hyperphosphorylation, propagation of tau pathology and the relationship between tau and Aβ. © 2012 Duan et al.; licensee BioMed Central Ltd.
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