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Ezh2 is involved in radial neuronal migration through regulating Reelin expression in cerebral cortex
Linnan Zhao1,2, Jun Li1,2, Yuanlin Ma1,2
1Peking University Sixth Hospital/Institute of Mental Health, Beijing 100191, China.
Scientific Reports
|October 27, 2015
Summary
Enhancer of zest homolog 2 (Ezh2) epigenetically regulates cortical neuron migration. Ezh2 knockdown disrupts neuronal orientation and radial migration by affecting Reelin expression, crucial for proper brain development.
Area of Science:
- Neuroscience
- Developmental Biology
- Epigenetics
Background:
- Radial migration of pyramidal neurons is essential for cerebral cortex development.
- Neurons undergo complex morphological and directional changes to reach their final positions.
Purpose of the Study:
- To investigate the role of histone methyltransferase enhancer of zest homolog 2 (Ezh2) in regulating cortical radial migration.
- To elucidate the molecular mechanisms by which Ezh2 influences neuronal migration and orientation.
Main Methods:
- Utilized Ezh2 knockdown techniques in developing cortical neurons.
- Assessed neuronal orientation and migration patterns.
- Analyzed Reelin gene transcription levels following Ezh2 manipulation.
Main Results:
- Ezh2 knockdown resulted in disturbed neuronal orientation and impaired radial migration.
- Migration deficiency correlated with the derepression of Reelin transcription in affected neurons.
- Ezh2 acts epigenetically to maintain appropriate Reelin expression patterns.
Conclusions:
- Enhancer of zest homolog 2 (Ezh2) plays a critical role in regulating the radial migration of cortical neurons.
- Epigenetic control of Reelin by Ezh2 is vital for ensuring proper neuronal orientation during brain development.
