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Related Experiment Video

Updated: Jan 17, 2026

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Neuroinflammation and Disease: Pathways and Opportunities.

Olivia Hoffman1, Nicholas H Varvel2, Avtar S Roopra1

  • 1Department of Neuroscience, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA.

Annual Review of Pharmacology and Toxicology
|September 18, 2025
PubMed
Summary

Three key molecular pathways—EP2 receptor, CCR2 receptor, and JAK/STAT signaling—drive neuroinflammation in brain diseases. Targeting these pathways offers potential for novel treatments for neurological conditions.

Keywords:
Alzheimer's diseaseCCL2CCR2EP2JAKSTATepilepsyneuroinflammationprostaglandin E2

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Area of Science:

  • Neuroscience
  • Immunology
  • Molecular Biology

Background:

  • Neuroinflammation is increasingly recognized as a causative factor in neurodegenerative disorders.
  • Neuroinflammation precedes symptom onset in Alzheimer's disease and is implicated in epilepsy and Parkinson's disease.

Purpose of the Study:

  • To explore three emerging molecular pathways driving neuroinflammation: EP2 receptor, CCR2 receptor, and JAK/STAT signaling.
  • To understand the convergence of these pathways and their role in sustaining chronic brain disease pathology.

Main Methods:

  • Review and synthesis of current research on EP2 receptor, CCR2 receptor, and JAK/STAT signaling in neuroinflammation.
  • Analysis of how these pathways modulate immune cell activation, recruitment, and cytokine amplification.

Main Results:

  • The EP2 receptor (prostaglandin E2) modulates immune cell activation and exacerbates inflammation.
  • The CCR2 receptor (chemokine CCL2) regulates peripheral immune cell recruitment to the brain.
  • JAK/STAT pathways influence neuronal and glial function and can amplify or resolve neuroinflammation.

Conclusions:

  • These three pathways converge on immune cell recruitment, cytokine amplification, and transcriptional regulation, creating feedforward loops in chronic brain diseases.
  • Understanding these complex interactions provides opportunities for developing novel, disease-modifying therapeutic interventions for inflammatory neurological conditions.