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Copper transport and Alzheimer’s disease

European Biophysics Journal volume 37, pages 295–300 (2008)Cite this article

Abstract

This brief review discusses copper transport in humans, with an emphasis on knowledge learned from one of the simplest model organisms, yeast. There is a further focus on copper transport in Alzheimer’s Disease (AD). Copper homeostasis is essential for the well-being of all organisms, from bacteria to yeast to humans: survival depends on maintaining the required supply of copper for the many enzymes, dependent on copper for activity, while ensuring that there is no excess free copper, which would cause toxicity. A virtual orchestra of proteins are required to achieve copper homeostasis. For copper uptake, Cu(II) is first reduced to Cu(I) via a membrane-bound reductase. The reduced copper can then be internalised by a copper transporter where it is transferred to copper chaperones for transport and specific delivery to various organelles. Of significance are internal copper transporters, ATP7A and ATP7B, notable for their role in disorders of copper deficiency and toxicity, Menkes and Wilson’s disease, respectively. Metallothioneins and Cu/Zn superoxide dismutase can protect against excess copper in cells. It is clear too, increasing age, environmental and lifestyle factors impact on brain copper. Studies on AD suggest an important role for copper in the brain, with some AD therapies focusing on mobilising copper in AD brains. The transport of copper into the brain is complex and involves numerous players, including amyloid precursor protein, Aβ peptide and cholesterol.

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  1. CSIRO Molecular and Health Technologies and P-Health Flagship, 343 Royal Parade, Parkville, VIC, Australia

    Ian G. Macreadie

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  1. Ian G. Macreadie
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Correspondence to Ian G. Macreadie.

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Macreadie, I.G. Copper transport and Alzheimer’s disease. Eur Biophys J 37, 295–300 (2008). https://doi.org/10.1007/s00249-007-0235-2

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  • DOI: https://doi.org/10.1007/s00249-007-0235-2

Keywords

  • Simvastatin
  • Amyloid Precursor Protein
  • Copper Level
  • Copper Transporter
  • Copper Metabolism