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Updated: Jun 27, 2025
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Genetic Manipulation of Cerebellar Granule Neurons In Vitro and In Vivo to Study Neuronal Morphology and Migration
Published on: March 17, 2014
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MEF2C contributes to axonal branching by regulating Kif2c transcription
Ronghua Wu1, Ying Sun1, Zhihao Zhou1
1Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China.
The European Journal of Neuroscience
|April 25, 2024
Summary
Myocyte enhancer factor 2c (MEF2C) regulates Kinesin family member 2c (KIF2C) transcription, impacting spinal motor neuron development and axonal branching in developing neurons.
Area of Science:
- Neuroscience
- Molecular Biology
- Genetics
Background:
- Neurons rely on microtubules for axonal transport and growth.
- Kinesin family member 2c (KIF2C) depolymerizes microtubules, influencing microtubule dynamics.
- Myocyte enhancer factor 2c (MEF2C) mutations are linked to neurological disorders, but its role in neuronal gene regulation is unclear.
Purpose of the Study:
- To investigate the role of MEF2C as a transcription regulator in neuronal development.
- To identify target genes regulated by MEF2C in neurons.
- To elucidate the functional relationship between MEF2C and KIF2C in neuronal development.
Main Methods:
- Zebrafish models with knockdown of Mef2c and Kif2c.
- Luciferase reporter assays and Chromatin Immunoprecipitation (ChIP) assays.
- In vitro studies using E18 cortical neurons to assess neurite outgrowth and branching.
Main Results:
- Knockdown of Mef2c and Kif2c impaired spinal motor neuron development and behavior in zebrafish.
- MEF2C was identified as a novel transcriptional regulator of the Kif2c gene.
- Depletion of Mef2c or Kif2c reduced primary neurites and axonal branching in cortical neurons; Kif2c depletion counteracted Mef2c overexpression effects on branching.
Conclusions:
- MEF2C directly regulates KIF2C transcription.
- The MEF2C-KIF2C pathway is crucial for axonal branching during neuronal development.
- This study reveals a novel mechanism underlying MEF2C's role in neurological function.
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