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Assessing Iron Deposition in the Brains of 5xFAD Mice by Perls'/DAB Staining
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Assessing Iron Deposition in the Brains of 5xFAD Mice by Perls'/DAB Staining

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How iron can drive neurodegeneration

Boyd Kenkhuis1, Ashley I Bush2, Scott Ayton2

  • 1Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands; Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands.

Trends in Neurosciences
|February 26, 2023
PubMed

Insights

Iron overload contributes to neurodegeneration by causing microglial ferroptosis, a cell death pathway. Ferroptosis inhibitors may offer new treatments for these debilitating brain diseases.

Area of Science:

  • Neurobiology
  • Cellular pathology
  • Neurodegenerative disease research

Background:

  • Iron accumulation is a known factor in neurodegenerative diseases.
  • The specific role of iron overload in disease mechanisms remains unclear.
  • Microglia, the brain's immune cells, are implicated in neuroinflammation and disease progression.

Purpose of the Study:

  • To investigate the specific vulnerability of microglia to iron overload.
  • To determine if iron overload induces ferroptosis in microglia.
  • To explore the therapeutic potential of targeting ferroptosis in neurodegenerative conditions.

Main Methods:

  • Analysis of microglial responses to iron overload in experimental models.
  • Examination of clinical specimens from patients with neurodegenerative diseases.
  • Assessment of cell death pathways, specifically ferroptosis.

Main Results:

  • Microglia exhibit significant vulnerability to iron overload.
  • Evidence confirms iron overload-induced ferroptosis in microglia.
  • Microglial ferroptosis was observed in human neurodegenerative disease samples.

Conclusions:

  • Microglial ferroptosis is a key mechanism linking iron overload to neurodegeneration.
  • Targeting ferroptosis pathways presents a promising therapeutic strategy.
  • Further research into ferroptosis inhibitors could yield treatments for neurodegenerative diseases.
Keywords:
Alzheimer's diseaseParkinson's diseaseastrocytes, iPSCferroptosismicroglia

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