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Updated: May 14, 2026

Analyzing the Functions of Mast Cells In Vivo Using 'Mast Cell Knock-in' Mice
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Mast Cells in the Brain: Enduring Mysteries, Emerging Roles.

Shivani Mandal1, Paul Forsythe1

  • 1Division of Pulmonary Medicine, Department of Medicine, Faculty of Medicine & Dentistry, and Alberta Respiratory Centre, University of Alberta, Edmonton, AB T6G 2B7, Canada.

Cells
|May 13, 2026
PubMed
Summary

Brain mast cells, immune sentinels in the central nervous system (CNS), are crucial for neurovascular function and immune surveillance. Research clarifies their roles, ontogeny, and interactions with neural networks.

Keywords:
behaviorblood–brain barrierbrainglial interactionimmune surveillancemast cellmigraineneuroinflammationneuronal interactionsleep

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Published on: July 4, 2018

Area of Science:

  • Neuroimmunology
  • Cellular Neuroscience
  • Immunology

Background:

  • Mast cells, typically known for allergy and peripheral inflammation, reside in the meninges and brain parenchyma.
  • Their sparse distribution in perivascular niches has historically hindered study.
  • Previous research predates advanced immunological tools, leading to misconceptions about brain mast cells.

Purpose of the Study:

  • To review the historical research on mast cells in the central nervous system (CNS).
  • To clarify the known functions, ontogeny, and distinctions of brain mast cells.
  • To explore their roles in CNS physiology and pathology, including blood-brain barrier (BBB) regulation and neurovascular function.

Main Methods:

  • Comprehensive literature review of historical and contemporary research on brain mast cells.
  • Analysis of evidence implicating mast cells in CNS immune surveillance, infection, and injury.
  • Examination of mast cell communication with glial and neuronal networks.

Main Results:

  • Mast cells are implicated in regulating blood-brain barrier (BBB) permeability and neurovascular function.
  • They play roles in CNS immune surveillance during infection and injury.
  • Evidence suggests mast cells can modulate neural activity, development, and behavior.

Conclusions:

  • Brain mast cells are integral to CNS physiology and pathology, distinct from peripheral counterparts.
  • Emerging research redefines their significance, bridging immunology and neuroscience.
  • Further investigation is needed to fully understand their impact on neural networks and behavior.