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Chasseigneaux, S, Dinc, L, Rose, C, Chabret, C, Coulpier, F, Topilko, P, Mauger, G and Allinquant, B (2011) Secreted amyloid precursor protein β and secreted amyloid precursor protein α induce axon outgrowth in vitro through Egr1 signaling pathway. PLoS ONE 6:e16301


sAPPα released after α secretase cleavage of Amyloid Precursor Protein (APP) has several functions including the stimulation of neurite outgrowth although detailed morphometric analysis has not been done. Two domains involved in this function have been described and are present in sAPPβ released at the first step of amyloid peptide cleavage, raising the possibility that sAPPβ could also stimulate neurite outgrowth. We investigated the morphological effects of sAPPα and sAPPβ on primary neurons and identified a key signaling event required for the changes observed.


PubMed PMC3029320 Online version:10.1371/journal.pone.0016301


Amyloid beta-Protein Precursor/pharmacology; Amyloid beta-Protein Precursor/secretion; Animals; Axons/drug effects; Axons/metabolism; Brain/cytology; Cell Adhesion; Cells, Cultured; Dose-Response Relationship, Drug; Early Growth Response Protein 1/metabolism; Mice; Mice, Knockout; Neurons/ultrastructure; Signal Transduction/physiology