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Title: Amyloid precursor protein promotes post-developmental neurite arborization in the Drosophila brain
Authors: Leyssen, Maarten
Ayaz, Derya
Hébert, Sébastien
Reeve, Simon
De Strooper, Bart
Hassan, Bassem # ×
Issue Date: Aug-2005
Publisher: Nature Publishing Group
Series Title: EMBO Journal vol:24 issue:16 pages:2944-55
Abstract: The mechanisms regulating the outgrowth of neurites during development, as well as after injury, are key to the understanding of the wiring and functioning of the brain under normal and pathological conditions. The amyloid precursor protein (APP) is involved in the pathogenesis of Alzheimer's disease (AD). However, its physiological role in the central nervous system is not known. Many physical interactions between APP and intracellular signalling molecules have been described, but their functional relevance remains unclear. We show here that human APP and Drosophila APP-Like (APPL) can induce postdevelopmental axonal arborization, which depends critically on a conserved motif in the C-terminus and requires interaction with the Abelson (Abl) tyrosine kinase. Brain injury induces APPL upregulation in Drosophila neurons, correlating with increased post-traumatic mortality in appl(d) mutant flies. Finally, we also found interactions between APP and the JNK stress kinase cascade. Our findings suggest a role for APP in axonal outgrowth after traumatic brain injury.
URI: 
ISSN: 0261-4189
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Genetics Section (-)
Department of Human Genetics - miscellaneous
× corresponding author
# (joint) last author

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