Alzheimer's Disease Research Today is a free monthly online journal that collates and summarizes the latest research about Alzheimer's Disease, including details on diagnosis, memory loss, heredity, treatment, medication.

Abeta, tau and ApoE4 in Alzheimer's disease: the axonal connection.

Adalbert R, Gilley J, Coleman MP

The Babraham Institute, Babraham, Cambridge, UK.

Mutations in amyloid precursor protein (APP), tau and apolipoprotein E4 (ApoE4) lead to Alzheimer's disease (AD) or related pathologies. Pathogenesis and interactions between these pathways have been studied in mouse models. Here, we highlight the fact that axons are important sites of cellular pathology in each pathway and propose that pathway convergence at the molecular level might occur in axons. Recent developments suggest that axonal transport of APP influences beta-amyloid deposition and that tau regulates axonal transport. ApoE4 influences both axonal tau phosphorylation and amyloid-induced neurite pathology. Thus, a better understanding of axonal events in AD might help connect the pathogenic mechanisms of beta-amyloid, ApoE4 and tau, indicating the most important steps for therapeutic targeting.

Published 3 April 2007 in Trends Mol Med, 13(4): 135-42.
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