Journal article

Substrate-bound beta-amyloid peptides inhibit cell adhesion and neurite outgrowth in primary neuronal cultures

RB Postuma, WL He, J Nunan, K Beyreuther, CL Masters, CJ Barrow, DH Small

Journal of Neurochemistry | WILEY | Published : 2000


Accumulation of the beta-amyloid protein (Abeta) in the brain is an important step in the pathogenesis of Alzheimer's disease. However, the mechanism of Abeta toxicity remains unclear. Abeta can bind to the extracellular matrix, a structure that regulates adhesive events such as neurite outgrowth and synaptogenesis. The binding of Abeta to the extracellular matrix suggests that Abeta may disrupt cell-substrate interactions. Therefore, the effect of substrate-bound Abeta on the growth of isolated chick sympathetic and mouse cortical neurons was examined. Abeta1-40 and Abeta1-42 had dose-dependent effects on cell morphology. When tissue culture plates were coated with 0.1-10 ng/well Abeta, neu..

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