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Published on: April 13, 2017
Microglia: first responders in the central nervous system
B Cătălin1, A Cupido, Maria Iancău
1Department of Molecular Physiology, Institute of Physiology, University of Saarland, Homburg, Germany; alexander.cupido@uks.eu.
Abstract:
Microglia has emerged not only as an essential inflammatory cell but also as a major player in the development of the adult brain. Microglia phagocytize extra-numerical synapses during postnatal development, maintain and strengthen the remaining subset of synapses, remodel synaptic circuits and clearing apoptotic newborn neurons. Thereby, microglia plays a crucial role for the establishment, plasticity and function of adult neural circuits. In addition to the key role in normal brain function, any imbalance in microglia activity has been associated with neurodegenerative diseases. Microglial cells respond rapidly to smallest pathological changes, this being a vital aspect in many tissue scaring and the local confinement of focal lesions. It is assumed that the high motility of microglial cells represents an important requirement to fulfill the numerous functions. In this review will highlight the role of microglial motility in the healthy and the injured brain, and discuss how impairment of microglia motility can affect normal brain function.
Insights
Microglial motility is vital for brain development and function, influencing synaptic plasticity and neural circuit formation. Impaired microglia movement is linked to neurodegenerative diseases, highlighting its critical role in brain health.
Area of Science:
- Neuroscience
- Cell Biology
- Neuroimmunology
Background:
- Microglia are key immune cells in the brain, essential for development and function.
- They play roles in synaptic pruning, circuit remodeling, and clearing apoptotic cells.
- Microglia activity is crucial for maintaining neural circuit plasticity and function.
Purpose of the Study:
- To review the multifaceted roles of microglial motility in the healthy brain.
- To examine the significance of microglial motility in the context of brain injury.
- To discuss the consequences of impaired microglial motility on brain function.
Main Methods:
- Literature review focusing on microglial cell biology and motility.
- Analysis of studies investigating microglial function in development and disease.
- Synthesis of current understanding of microglial dynamics and their impact.
Main Results:
- Microglial motility is essential for synaptic development, maintenance, and plasticity.
- Rapid microglial responses to pathological changes are critical for tissue repair and lesion containment.
- Impaired microglial motility can disrupt normal brain function and contribute to disease.
Conclusions:
- Microglial motility is a fundamental property supporting diverse functions in the central nervous system.
- Understanding microglial motility is crucial for developing therapeutic strategies for neurological disorders.
- Maintaining optimal microglial function, including motility, is vital for brain health throughout life.
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