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Establishing Area-Specific Brain Organoids Through Transcription Factor-Mediated Patterning.

Jonghun Kim1, Yoon-Sun Jang2, Minseong Lee3

  • 1Department of Genetics, Yale Stem Cell Center, Yale Child Study Center, Yale School of Medicine, New Haven, CT 06520, USA.

Biology
|March 27, 2026
PubMed
Summary

Researchers developed a new method to create area-specific human cerebral organoids (hCOs) using transcription factors. This breakthrough allows for better modeling of brain development and neurological disorders.

Keywords:
brain organoidscortical arealizationsingle-cell RNA sequencingtranscription factors

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Genetics

Background:

  • The human cerebral cortex has distinct regional organization along the rostral-caudal axis.
  • Current human brain organoid models lack this crucial regional diversity.
  • Understanding cortical regionalization is key for studying brain development and disorders.

Purpose of the Study:

  • To establish an area-specific human cerebral organoid (hCO) platform.
  • To identify transcription factors (TFs) that control rostral-caudal cortical identity.
  • To investigate the functional consequences of regional specification in hCOs.

Main Methods:

  • Re-analysis of human cortical single-cell RNA sequencing datasets to identify key TFs.
  • Identification of SP9 (rostral-enriched) and DMRTA2 (caudal-enriched) as candidate TFs.
  • Inducible overexpression of identified TFs during hCO generation.

Main Results:

  • SP9 overexpression induced rostral cortical characteristics in hCOs.
  • DMRTA2 overexpression promoted caudal cortical features in hCOs.
  • Regional identities were confirmed by differential marker expression and distinct neural activity patterns.

Conclusions:

  • TF overexpression enables controlled generation of area-specific hCOs.
  • This platform offers a scalable model for studying human cortical regionalization.
  • Provides a framework for investigating region-specific neurodevelopmental and neurological disorders.