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CuII(atsm) Attenuates Neuroinflammation.

Xin Yi Choo1,2,3, Jeffrey R Liddell1,3, Mikko T Huuskonen4

  • 1Department of Pathology, The University of Melbourne, Melbourne, VIC, Australia.

Frontiers in Neuroscience
|October 16, 2018
PubMed
Summary

Copper complexes like Cu(II)(atsm) show promise in treating neuroinflammation. This study found that Cu(II)(atsm) reduced brain inflammation in vivo and in vitro by modulating microglia and astrocyte responses.

Keywords:
astrocytecopperinflammationmicroglianeurodegeneration

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Area of Science:

  • Neuroscience
  • Immunology
  • Biochemistry

Background:

  • Neuroinflammation and biometal dyshomeostasis are hallmarks of neurodegenerative diseases like Alzheimer's disease.
  • Metallothioneins link metal ions and inflammation, but copper's specific role in brain inflammation is unclear.

Purpose of the Study:

  • To investigate the immunomodulatory effects of the copper complex Cu(II)(atsm) on neuroinflammation.
  • To assess the anti-inflammatory actions of Cu(II)(atsm) in vivo and in vitro models.

Main Methods:

  • Utilized in vivo magnetic resonance imaging (MRI) to evaluate cerebrovascular inflammation.
  • Examined in vitro effects on primary microglia and astrocytes, measuring nitric oxide (NO), monocyte chemoattractant protein 1 (MCP-1), tumor necrosis factor (TNF), and interleukin 6 (IL-6).

Main Results:

  • Cu(II)(atsm) effectively reduced acute cerebrovascular inflammation induced by lipopolysaccharide (LPS).
  • In vitro, Cu(II)(atsm) significantly decreased inflammatory markers (NO, MCP-1, TNF, IL-6) in microglia and astrocytes.
  • These effects correlated with increased cellular copper and metallothionein-1 (MT1) levels.

Conclusions:

  • Cu(II)(atsm) exhibits significant anti-inflammatory properties in neuroinflammatory models.
  • The study suggests copper complexes, such as Cu(II)(atsm), hold potential as therapeutics for neuroinflammatory conditions.