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Author Spotlight: Using Zebrafish to Explore Microglia Migration During Brain Development
Published on: May 17, 2024
Microglial ontogeny, diversity and neurodevelopmental functions
Morgane Sonia Thion1, Sonia Garel1
1Institut de Biologie de l'Ecole Normale Supérieure (IBENS), Ecole Normale Supérieure, CNRS, INSERM, PSL Research University, 75005 Paris, France.
Abstract:
Microglia are instrumental to the development, function, homeostasis and pathologies of the central nervous system. These brain-resident macrophages arise early in embryogenesis and seed the developing brain, where they differentiate in response to cues provided by their neural niche. Throughout life, microglia regulate the neural tissue through a variety of cellular functions influenced by intrinsic and extrinsic factors. Despite their importance, we are only starting to uncover how microglia colonize the brain, adopt distinct functional states during development and the long-term impact of early alteration of their functions. This review highlights the latest knowledge on the ontogeny of microglia, their developmental trajectory and emerging roles. Characterizing these processes will be critical for our understanding of both brain physiology and pathologies.
Insights
Microglia, essential brain immune cells, originate early in development and shape neural tissue function throughout life. Understanding their origins and developmental roles is key to brain health and disease research.
Area of Science:
- Neuroscience
- Immunology
- Developmental Biology
Background:
- Microglia are the primary immune cells of the central nervous system.
- They play crucial roles in brain development, function, homeostasis, and disease.
- Their origins and developmental processes are complex and not fully understood.
Purpose of the Study:
- To review the latest knowledge on microglial ontogeny and developmental trajectory.
- To highlight emerging roles of microglia in the central nervous system.
- To emphasize the importance of understanding microglial development for brain physiology and pathology.
Main Methods:
- This is a review article, synthesizing existing research.
- It focuses on current literature regarding microglial development and function.
- No new experimental data were generated.
Main Results:
- Microglia originate early in embryogenesis and colonize the developing brain.
- They differentiate based on cues from their neural niche.
- Microglia regulate neural tissue throughout life via intrinsic and extrinsic factors.
Conclusions:
- Further characterization of microglial ontogeny and developmental trajectory is critical.
- Understanding early microglial development is essential for comprehending brain physiology.
- Insights into microglial development are vital for understanding and treating central nervous system pathologies.
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