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Microglia-Astrocyte Crosstalk: An Intimate Molecular Conversation

Mithilesh Kumar Jha1,2, Myungjin Jo1,3, Jae-Hong Kim1

  • 11 Department of Pharmacology, Brain Science & Engineering Institute, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.

The Neuroscientist : a Review Journal Bringing Neurobiology, Neurology and Psychiatry
|June 23, 2018
PubMed

Insights

Microglia and astrocytes engage in crucial bidirectional communication, influencing each other's functions. This glial crosstalk is vital for maintaining central nervous system (CNS) health and responding to injury.

Area of Science:

  • Neuroscience
  • Immunology
  • Cell Biology

Background:

  • Microglia and astrocytes are key glial cells in the central nervous system (CNS).
  • Their interactions, termed crosstalk, are increasingly recognized as critical for CNS homeostasis and disease.
  • Bidirectional signaling between these cells modulates their respective functions.

Purpose of the Study:

  • To review the current understanding of microglia-astrocyte molecular communication.
  • To highlight the reciprocal regulatory mechanisms between these glial cells.
  • To discuss the implications of this crosstalk in CNS health and disease.

Main Methods:

  • Literature review of recent studies on glial cell interactions.
  • Analysis of signaling molecules involved in microglia-astrocyte crosstalk.
  • Synthesis of findings related to functional outcomes in CNS conditions.

Main Results:

  • Microglia and astrocytes release signaling molecules that determine each other's fate and function.
  • This crosstalk involves autocrine feedback and bidirectional conversation.
  • Microglia influence astrocyte immune functions and reactive states, while astrocytes regulate microglial motility and phagocytosis.

Conclusions:

  • Microglia-astrocyte crosstalk is fundamental to neuronal function and dysfunction.
  • Understanding this intimate molecular conversation is crucial for addressing CNS disorders.
  • Targeting glial crosstalk offers potential therapeutic avenues for neurological diseases.
Keywords:
astrocytescentral nervous systemglial molecular signalingmicroenvironmentmicrogliamicroglia-astrocyte crosstalkneuroinflammationsecreted factors

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