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Classics never get old: neurotransmitters shape human cortical interneuron migration.

Antonela Bonafina1, Míriam Javier-Torrent1, Laurent Nguyen1

  • 1Laboratory of Molecular Regulation of Neurogenesis, GIGA-Stem Cells and GIGA-Neurosciences, Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège, CHU Sart Tilman, Liège, Belgium.

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Summary
This summary is machine-generated.

Neurotransmitters guide human brain cell migration. This study reveals how receptors on migrating cortical interneurons in organoids fine-tune their movement strategies.

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Genetics

Background:

  • Neurotransmitter functions are known in rodent neural progenitors, but their roles in the human fetal brain remain unclear.
  • Understanding human brain development is crucial for addressing neurological disorders.

Purpose of the Study:

  • To investigate the role of neurotransmitters in human cortical interneuron migration.
  • To explore the expression and function of neurotransmitter receptors in developing human neurons.

Main Methods:

  • Utilized fused human brain organoids to model early human brain development.
  • Analyzed the expression of neurotransmitter receptors on migrating human cortical interneurons.
  • Investigated how receptor activation influences neuronal migration patterns.

Main Results:

  • Human cortical interneurons migrating in brain organoids express a wide range of neurotransmitter receptors.
  • Activation of these receptors modulates and fine-tunes the selective migration strategies of interneurons.
  • This suggests a conserved yet human-specific role for neurotransmitters in cortical development.

Conclusions:

  • Neurotransmitter signaling is critical for regulating the migration of human cortical interneurons.
  • Brain organoids provide a valuable platform for studying human neurodevelopmental processes.
  • Findings offer insights into the molecular mechanisms underlying human brain formation.