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Differentiation of Mouse Embryonic Stem Cells into Cortical Interneuron Precursors
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Mechanisms of Cortical Differentiation.

Lata Adnani1, Sisu Han1, Saiqun Li2

  • 1Sunnybrook Research Institute, Toronto, ON, Canada; Cumming School of Medicine, Alberta Children's Hospital Research Institute, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.

International Review of Cell and Molecular Biology
|February 8, 2018
PubMed
Summary

Neural progenitor cells in the developing brain decide whether to proliferate or differentiate based on intrinsic and extrinsic cues. Understanding these signals is key for brain development and treating neurological disorders.

Keywords:
AstrocytesGABAergic interneuronsGlutamatergic projection neuronsIntermediate neuronal progenitorsNeocortex developmentOligodendrocytesRadial glial cellsTemporal identity transitions

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Cell Biology

Background:

  • The human brain generates billions of neuronal and glial cells during development.
  • Neural progenitor cells must decide to proliferate or differentiate.
  • Intrinsic and extrinsic cues regulate these crucial cell fate decisions.

Purpose of the Study:

  • To review current understanding of cues governing neural cell fate specification.
  • To explore the roles of intrinsic and extrinsic signals in neuronal and glial development.
  • To highlight the importance of understanding neocortical development for neurological disorders and therapies.

Main Methods:

  • Review of loss- and gain-of-function studies in the mouse brain.
  • Analysis of intrinsic cues (e.g., transcription factors).
  • Analysis of extrinsic cues (environmental signals).

Main Results:

  • Neocortical neurons, astrocytes, and oligodendrocytes are generated sequentially from progenitor pools.
  • Specific intrinsic and extrinsic cues guide cell fate decisions.
  • Understanding these processes is critical for normal brain function.

Conclusions:

  • Proper cell numbers and types are essential for neural function.
  • Imbalances are linked to neuropsychiatric disorders like autism and schizophrenia.
  • Knowledge of these developmental mechanisms aids in designing cell-based therapies and understanding disease etiology.