Environmental Signals on Microglial Function during Brain Development, Neuroplasticity, and Disease

Luana da Silva Chagas1, Poliana Capucho Sandre1,2, Natalia Cristina Aparecida Ribeiro E Ribeiro1

  • 1Laboratory of Neural Plasticity Neurobiology Department, Biology Institute, Federal Fluminense University, Niteroi 24020-141, Brazil.

Insights

Microglia, the brain's immune cells, are crucial in maintaining central nervous system (CNS) health. Environmental factors impact microglia, influencing brain development and neuroplasticity, with implications for neurological disorders.

Area of Science:

  • Neurobiology
  • Neuroimmunology
  • Central Nervous System (CNS) Research

Background:

  • Microglia, the resident immune cells of the CNS, play a vital role in brain homeostasis.
  • Environmental factors like stress, disease, and hormonal imbalances significantly influence microglial function.
  • The dynamic interplay between the brain and the immune system, particularly involving microglia, is a rapidly advancing research area.

Purpose of the Study:

  • To review recent literature on microglial function during CNS development and homeostasis.
  • To explore the role of microglia in synaptic disorders influenced by neuroinflammation.
  • To discuss the long-term consequences of microglial activity on neurodevelopmental, neurodegenerative, and neuropsychiatric disorders.

Main Methods:

  • Literature review of recent scientific publications.
  • Analysis of studies investigating microglial phenotypes in various contexts.
  • Synthesis of findings on microglial-immune system interactions.

Main Results:

  • Microglial physiology is sensitive to environmental changes, affecting CNS homeostasis.
  • Controversies exist regarding microglial phenotypes and their impact on neurodevelopment and neuroplasticity.
  • Microglial dysfunction contributes to synaptic disorders and neuroinflammation.

Conclusions:

  • Microglia are key players in brain development, homeostasis, and disease.
  • Understanding microglial responses to environmental stimuli is crucial for addressing neurological disorders.
  • Further research into microglial-immune interactions is needed to elucidate their role in health and pathology.