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Cycle on Wheels: Is APP Key to the AppBp1 Pathway?

Journal: Austin Alzheimer's and Parkinson's Disease (Vol.1, No. 2)

Publication Date:

Authors : ; ; ; ; ; ;

Page : 1-7

Keywords : APP; Alzheimer’s disease; Ubiquitination; Neddylation; Cell cycle;

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Alzheimer’s disease (AD) is the gradual loss of the cognitive function due to neuronal death. Currently no therapy is available to slow down, reverse or prevent the disease. Here we analyze the existing data in literature and hypothesize that the physiological function of the Amyloid Precursor Protein (APP) is activating the AppBp1 pathway and this function is gradually lost during the progression of AD pathogenesis. The AppBp1 pathway, also known as the neddylation pathway, activates the small ubiquitin-like protein nedd8, which covalently modifies and switches on Cullin ubiquitin ligases, which are essential in the turnover of cell cycle proteins. Here we discuss how APP may activate the AppBp1 pathway, which downregulates cell cycle markers and protects genome integrity. More investigation of this mechanism-driven hypothesis may provide insights into disease treatment and prevention strategies.

Last modified: 2016-08-11 19:01:05