Related Experiment Video
Updated: Apr 7, 2026
Isolation and Whole-Cell Patch-Clamp Recording of Hippocampal Microglia from Adult Mice
Published on: September 27, 2024
Origin of microglia: current concepts and past controversies
Florent Ginhoux1, Marco Prinz2
1Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore 138648.
Abstract:
Microglia are the resident macrophages of the central nervous system (CNS), which sit in close proximity to neural structures and are intimately involved in brain homeostasis. The microglial population also plays fundamental roles during neuronal expansion and differentiation, as well as in the perinatal establishment of synaptic circuits. Any change in the normal brain environment results in microglial activation, which can be detrimental if not appropriately regulated. Aberrant microglial function has been linked to the development of several neurological and psychiatric diseases. However, microglia also possess potent immunoregulatory and regenerative capacities, making them attractive targets for therapeutic manipulation. Such rationale manipulations will, however, require in-depth knowledge of their origins and the molecular mechanisms underlying their homeostasis. Here, we discuss the latest advances in our understanding of the origin, differentiation, and homeostasis of microglial cells and their myelomonocytic relatives in the CNS.
Insights
Microglia, the brain's immune cells, are crucial for neural development and function. Understanding their origins and regulation is key to treating neurological diseases and advancing brain repair therapies.
Area of Science:
- Neuroscience
- Immunology
- Cell Biology
Background:
- Microglia are central nervous system (CNS) macrophages essential for brain homeostasis.
- They play critical roles in neuronal development, synaptic formation, and response to environmental changes.
- Dysfunctional microglia are implicated in neurological and psychiatric disorders.
Purpose of the Study:
- To review recent advancements in understanding microglial cell origins.
- To explore the molecular mechanisms governing microglial differentiation and homeostasis.
- To highlight the therapeutic potential of microglia in CNS diseases.
Main Methods:
- Literature review of recent studies on microglial biology.
- Analysis of molecular pathways involved in microglial development and function.
- Discussion of preclinical and clinical research targeting microglia.
Main Results:
- Microglia originate from early embryonic yolk sac progenitors.
- Their development and function are tightly regulated by specific signaling pathways.
- Aberrant microglial activation contributes to various neuropathologies.
- Microglia exhibit significant immunoregulatory and regenerative potential.
Conclusions:
- In-depth knowledge of microglial origins and homeostasis is vital for therapeutic strategies.
- Targeting microglial function offers promising avenues for treating CNS diseases.
- Further research into microglial biology will unlock new regenerative therapies.
