The critical role of microglia in the stress response

Ke Chen1, Zong-Yuan Xuan1, Bao-Yi Sun1

  • 1Department of Forensic Medicine, School of Medicine, Nantong University, Nantong 226000, China.

Insights

Microglia, the brain's immune cells, are key players in stress responses and related disorders. Targeting microglia offers new therapeutic avenues for stress-related brain conditions.

Area of Science:

  • Neuroscience
  • Immunology
  • Cell Biology

Background:

  • Microglia are the primary immune cells in the central nervous system (CNS).
  • They are crucial for brain homeostasis, synaptic pruning, and cognitive functions like learning and memory.
  • Microglial activation is a hallmark of the systemic stress response, involving morphological and functional changes.

Purpose of the Study:

  • To systematically review the role of microglia in stress processing.
  • To elucidate their involvement in the pathogenesis of stress-related disorders such as PTSD, MDD, AD, and PD.
  • To summarize current and emerging therapeutic strategies targeting microglia.

Main Methods:

  • Systematic synthesis of preclinical and clinical evidence.
  • Review of studies on microglial activation in response to stress.
  • Analysis of microglial mechanisms in stress-related neuropathologies.

Main Results:

  • Microglia are integral mediators of the integrated stress response.
  • Their dysregulation contributes to the development of major stress-related disorders.
  • Evidence highlights their multifaceted roles in brain adaptation and pathology.

Conclusions:

  • Microglial research is vital for understanding stress adaptation and brain diseases.
  • Targeting microglia presents promising therapeutic potential for stress-related conditions.
  • Further investigation into microglial functions can advance treatments for neurological and psychiatric disorders.

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