Abstract

β-Amyloid (Aβ) oligomers may play an important role in the early pathogenesis of Alzheimer's disease: cognitive impairment caused by synaptic dysfunction. Dystrophic neurites surrounding Aβ plaques, another pathological feature of Alzheimer's disease, are plaque-associated neuritic alterations preceding the appearance of synaptic loss. In the present review, we focus on the mechanism of dystrophic neurite formation by Aß oligomers, and discuss the neurotoxic role of Aβ-induced calsyntenin-3 in mediating dystrophic neurite formation.

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