National Institutes of Health/National Institute on Aging (NIH/NIA)
1R01 AG029430
米国
National Institutes of Health/National Institute on Aging (NIH/NIA)
AG061847
米国
National Institutes of Health/National Institute on Aging (NIH/NIA)
RF1 AG054022
米国
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)
1F32 NS095661
米国
引用
ジャーナル: Nat Commun / 年: 2022 タイトル: Structure-based discovery of small molecules that disaggregate Alzheimer's disease tissue derived tau fibrils in vitro. 著者: Paul M Seidler / Kevin A Murray / David R Boyer / Peng Ge / Michael R Sawaya / Carolyn J Hu / Xinyi Cheng / Romany Abskharon / Hope Pan / Michael A DeTure / Christopher K Williams / Dennis W ...著者: Paul M Seidler / Kevin A Murray / David R Boyer / Peng Ge / Michael R Sawaya / Carolyn J Hu / Xinyi Cheng / Romany Abskharon / Hope Pan / Michael A DeTure / Christopher K Williams / Dennis W Dickson / Harry V Vinters / David S Eisenberg / 要旨: Alzheimer's disease (AD) is the consequence of neuronal death and brain atrophy associated with the aggregation of protein tau into fibrils. Thus disaggregation of tau fibrils could be a therapeutic ...Alzheimer's disease (AD) is the consequence of neuronal death and brain atrophy associated with the aggregation of protein tau into fibrils. Thus disaggregation of tau fibrils could be a therapeutic approach to AD. The small molecule EGCG, abundant in green tea, has long been known to disaggregate tau and other amyloid fibrils, but EGCG has poor drug-like properties, failing to fully penetrate the brain. Here we have cryogenically trapped an intermediate of brain-extracted tau fibrils on the kinetic pathway to EGCG-induced disaggregation and have determined its cryoEM structure. The structure reveals that EGCG molecules stack in polar clefts between the paired helical protofilaments that pathologically define AD. Treating the EGCG binding position as a pharmacophore, we computationally screened thousands of drug-like compounds for compatibility for the pharmacophore, discovering several that experimentally disaggregate brain-derived tau fibrils in vitro. This work suggests the potential of structure-based, small-molecule drug discovery for amyloid diseases.