Clioquinol decreases amyloid-β burden and reduces working memory impairment in a transgenic mouse model of Alzheimer’s disease

GROSSI, C., FRANCESE, S., CASINI, A., ROSI, M. C., LUCCARINI, I., FIORENTINI, A., GABBIANI, C., MESSORI, L., MONETI, G. and CASAMENTI, F. (2009). Clioquinol decreases amyloid-β burden and reduces working memory impairment in a transgenic mouse model of Alzheimer’s disease. Journal of Alzheimer's disease, 17 (2), 423-440.

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Official URL: http://www.j-alz.com/issues/17/vol17-2.html
Link to published version:: https://doi.org/10.3233/JAD-2009-1063
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    Abstract

    Clioquinol (CQ) is a “metal protein attenuating compound” that crosses the blood-brain barrier and binds, with high affinity, copper(II) and zinc(II), two metal ions critically involved in amyloid-β aggregation and toxicity. CQ was recently proposed for the treatment of Alzheimer’s disease, but controversial data have been reported so far concerning its real therapeutic advantages. We describe here results of chronic CQ treatment in the TgCRND8 mouse model of Alzheimer’s disease. Remarkably, based on classical behavioral tests, CQ treatment was found to revert, to a large extent, the working memory impairments that are characteristic of this mouse model. Pairwise, a significant reduction of amyloid-β plaque burden, both in the cortex and in the hippocampus, was detected as well as an attenuation of astrogliosis. MALDI Mass Spectrometry Imaging technique revealed a specific localization of CQ in the above mentioned brain areas. Modest but significant effects on the absolute and relative brain concentrations of the three most important biometals (i.e., copper, zinc, and iron) were highlighted following CQ treatment. The pharmacological and mechanistic implications of the above findings are thoroughly discussed.

    Item Type: Article
    Research Institute, Centre or Group - Does NOT include content added after October 2018: Biomolecular Sciences Research Centre
    Identification Number: https://doi.org/10.3233/JAD-2009-1063
    Page Range: 423-440
    Depositing User: Users 4 not found.
    Date Deposited: 27 May 2010 08:20
    Last Modified: 18 Mar 2021 13:16
    URI: http://shura.shu.ac.uk/id/eprint/2111

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