Parkinson’s disease iron deposition caused by nitric oxide- induced loss of β-amyloid precursor protein

Scott Ayton, Peng Lei, Dominic J. Hare, James A. Duce, Jessica L. George, Paul A. Adlard, Catriona McLean, Jack T. Rogers, Robert A. Cherny, David I. Finkelstein, Ashley I. Bush

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74 Citations (Scopus)

Abstract

Elevation of both neuronal iron and nitric oxide (NO) in the substantia nigra are associated with Parkinson’s disease (PD) pathogenesis. We reported previously that the Alzheimer-associated β-amyloid precursor protein (APP) facilitates neuronal iron export. Here we report markedly decreased APP expression in dopaminergic neurons of human PD nigra and that APP−/−mice develop iron-dependent nigral cell loss. Conversely, APP-overexpressing mice are protected in the MPTP PD model. NO suppresses APP translation in mouse MPTP models, explaining how elevated NO causes iron-dependent neurodegeneration in PD.

Original languageEnglish
Pages (from-to)3591-3597
Number of pages7
JournalThe Journal of Neuroscience
Volume35
Issue number8
DOIs
Publication statusPublished - 25 Feb 2015
Externally publishedYes

Keywords

  • APP
  • Iron
  • Nitric oxide

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