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Related Experiment Video

Updated: Feb 4, 2026

Derivation of a Human Brain Organoid with Microglia Development
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Microglia and early brain development: An intimate journey.

Morgane S Thion1, Florent Ginhoux2,3, Sonia Garel1

  • 1Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, PSL Université Paris, 75005 Paris, France. thion@biologie.ens.fr garel@biologie.ens.fr.

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Neurons and microglia interact during early brain development, regulating neural circuit formation and sex-specific differences. This neurodevelopment is influenced by peripheral signals, highlighting a whole-body approach.

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Area of Science:

  • Neuroscience
  • Immunology
  • Developmental Biology

Background:

  • Nervous and immune system cross-talk is known in adults.
  • Recent research shows neuron-microglia interplay during early brain development.

Purpose of the Study:

  • To review the role of microglia in neurodevelopment.
  • To emphasize the importance of the neuro-immune axis in the developing brain.

Main Methods:

  • Literature review focusing on neurodevelopmental studies.
  • Analysis of research on microglia-neuron interactions.

Main Results:

  • Microglia are crucial for regulating neural circuit wiring.
  • Early neuron-microglia interactions contribute to sex-specific neural differences.
  • Peripheral signals, including microbiota-derived, influence developing neural circuits via microglia.

Conclusions:

  • The developing brain relies on a symbiotic relationship between neurons and microglia.
  • Studying neurodevelopment requires a holistic, whole-body perspective on neuro-immune interactions.