Preparation and Characterization of Neurotoxic Tau Oligomers

作者:Lasagna Reeves Cristian A; Castillo Carranza Diana L; Guerrero Munoz Marcos J; Jackson George R; Kayed Rakez*
来源:Biochemistry, 2010, 49(47): 10039-10041.
DOI:10.1021/bi1016233

摘要

Tau aggregation is a pathological hallmark of Alzheimer's disease, Parkinson's disease, and many other neurodegenerative disorders known as tauopathies. Tau aggregates take on many forms, and their formation is a multistage process with intermediate stages. Recently, tau oligomers have emerged as the pathogenic species in tauopathies and a possible mediator of amyloid-beta toxicity in Alzheimer's disease. Here, we use a novel, physiologically relevant method (oligomer cross-seeding) to prepare homogeneous populations of tau oligomers and characterize these oligomers in vitro. We show that both A beta and a-synuclein oligomers induce tau aggregation and the formation of beta-sheet-rich neurotoxic tau oligomers.

  • 出版日期2010-11-30