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Recent developments in Menkes disease

H Kodama1

  • 1Department of Pediatrics, Teikyo University School of Medicine, Tokyo, Japan.

Journal of Inherited Metabolic Disease
|January 1, 1993
PubMed
Summary

Menkes disease disrupts cellular copper transport, causing copper deficiency in mitochondria and accumulation in cytoplasm. Treatment may involve releasing trapped copper from blood vessels and glia to neurons.

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Area of Science:

  • Biochemistry
  • Cell Biology
  • Neuroscience

Background:

  • Menkes disease is a rare genetic disorder affecting copper metabolism.
  • Copper is essential for various cellular functions, including enzyme activity and neuronal development.

Purpose of the Study:

  • To review recent studies on Menkes disease, focusing on cellular copper transport mechanisms.
  • To investigate the cellular distribution and transport of copper in the context of Menkes disease.

Main Methods:

  • Review of recent scientific literature on Menkes disease.
  • Microscopic observation of brain tissue in macular mice.
  • Analysis of copper distribution in cultured astrocytes.

Main Results:

  • Menkes mutation impairs copper transport from cytosol to organelles, leading to cytoplasmic accumulation and mitochondrial deficiency.
  • Copper accumulates in blood vessels and glial cells (astrocytes) in the brain of affected mice.
  • Affected astrocytes exhibit impaired release of blood-borne copper.

Conclusions:

  • Menkes disease involves a defect in intracellular copper trafficking.
  • Copper sequestration in blood vessels and glia may contribute to neuronal copper deficiency.
  • Therapeutic strategies could focus on mobilizing trapped copper to neurons for effective treatment.

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