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Related Experiment Video

Updated: Mar 19, 2026

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Zbtb20 modulates the sequential generation of neuronal layers in developing cortex.

Anton B Tonchev1,2,3, Tran Cong Tuoc4,5, Eva H Rosenthal6

  • 1Molecular Developmental Neurobiology Laboratory, Max Planck Institute of Biophysical Chemistry, Am Fassberg, 37077, Gottingen, Germany. anton.tonchev@mu-varna.bg.

Molecular Brain
|June 11, 2016
PubMed
Summary
This summary is machine-generated.

Transcription factor Zbtb20 regulates mammalian neocortical development by controlling the timing of neuronal layer generation. Loss of Zbtb20 disrupts the balance of neuron production, impacting layer identities.

Keywords:
DevelopmentNeocortexTemporal identityTranscription factorZbtb20

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Genetics

Background:

  • Genetic programs in progenitor cells and neurons establish distinct layer and area identities during corticogenesis.
  • The role of transcription factor Zbtb20 in hippocampal development is known, but its function in mammalian neocortical morphogenesis is unexplored.

Purpose of the Study:

  • To investigate the role of transcription factor Zbtb20 in mammalian neocortical development.
  • To determine if Zbtb20 influences the generation of layer-specific neuronal identities during corticogenesis.

Main Methods:

  • Analysis of Zbtb20 expression patterns during embryogenesis.
  • Generation and analysis of Zbtb20 knockout mice.
  • Investigation of Zbtb20's molecular targets, including CoupTF1/Nr2f1.

Main Results:

  • Zbtb20 exhibits dynamic spatio-temporal expression in cortical progenitors, modulating sequential neuronal layer generation.
  • Zbtb20 knockout mice show increased early-born neurons (L6-L4) and reduced late-born neurons (L3/L2).
  • Zbtb20 regulates temporal neuron production by binding to the CoupTF1/Nr2f1 promoter and influences postmitotic neuron differentiation/migration.

Conclusions:

  • Zbtb20 acts as a novel temporal regulator in generating layer-specific neuronal identities within the neocortex.
  • Understanding Zbtb20's role is crucial for comprehending neocortical development and potential developmental disorders.