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Updated: Jun 22, 2026

Rapid Detection of Neurodevelopmental Phenotypes in Human Neural Precursor Cells (NPCs)
10:47

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Published on: March 2, 2018

Changes in alternative brain-derived neurotrophic factor transcript expression in the developing human prefrontal

Jenny Wong1, Maree J Webster, Hope Cassano

  • 1Schizophrenia Research Institute, Sydney, Australia.

The European Journal of Neuroscience
|June 13, 2009
PubMed
Summary
This summary is machine-generated.

Brain-derived neurotrophic factor (BDNF) gene transcription is dynamically regulated by different promoters during human frontal cortex development. Expression patterns vary with age, particularly in early childhood, influencing brain plasticity.

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Molecular Biology

Background:

  • The human frontal cortex undergoes extensive development, a period crucial for cognitive functions.
  • Brain-derived neurotrophic factor (BDNF) plays a vital role in neuronal development, plasticity, and survival.

Purpose of the Study:

  • To investigate the temporal regulation of BDNF gene transcription during human frontal cortex development.
  • To identify specific promoters and their roles in BDNF expression during different developmental stages.

Main Methods:

  • Quantitative real-time polymerase chain reaction (qRT-PCR) to analyze BDNF alternative 5' exon expression.
  • BDNF protein quantification.
  • In situ hybridization to determine mRNA localization within cortical layers.

Main Results:

  • BDNF transcript expression shows distinct temporal patterns, with significant upregulation of transcript IV-IX within the first year of life.
  • BDNF protein levels mirror the developmental trajectory of transcript IV-IX.
  • BDNF mRNA expression is highest in cortical layers V and VI, with age-related changes observed in layer IV.

Conclusions:

  • Differential promoter usage significantly contributes to the dynamic regulation of BDNF expression during human frontal cortex development.
  • These regulatory changes are most pronounced in early childhood, coinciding with periods of high neural plasticity.