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Related Experiment Video

Updated: Oct 22, 2025

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Microglial 'fat shaming' in development and disease.

Joanna Zareba1, Francesca Peri1

  • 1Department of Molecular Life Sciences, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.

Current Opinion in Cell Biology
|August 29, 2021
PubMed
Summary

Microglia, brain immune cells, share molecular signatures during development and disease, involving lipid metabolism. Targeting lipid processing in microglia offers new therapeutic avenues for neurodegenerative disorders.

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Area of Science:

  • Neuroscience
  • Immunology
  • Cell Biology

Background:

  • Neuronal-immune interactions are vital for brain homeostasis and development.
  • Microglia, the brain's resident macrophages, are crucial in clearing cellular debris, including dying neurons.
  • Dysfunctional microglia are implicated in various neurological disorders.

Purpose of the Study:

  • To review recent findings on microglial molecular signatures in development and disease.
  • To highlight the role of lipid metabolism in microglial function.
  • To identify potential therapeutic targets for neurodegenerative diseases based on microglial lipid processing.

Main Methods:

  • Review of recent scientific literature.
  • Analysis of single-cell RNA sequencing data.
  • Examination of microglial transcriptional responses.

Main Results:

  • Microglia exhibit conserved molecular signatures during development and in neurodegenerative conditions.
  • These signatures are characterized by genes involved in phagocytosis and lipid uptake/metabolism.
  • Microglia accumulate cholesterol and lipid-rich debris in neurodegenerative states.

Conclusions:

  • Microglial lipid metabolism is a key feature across different brain states.
  • Dysregulation of lipid processing by microglia contributes to neurodegeneration.
  • Targeting microglial lipid metabolism presents a promising therapeutic strategy for neurodegenerative disorders.