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Morphological changes of radial glial cells during mouse embryonic development
Xi Lu1, Minghui Duan1, Lingzhen Song1
1College of Veterinary Medicine, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi 712100, P.R. China.
Brain Research
|January 3, 2015
Summary
Radial glial cells, crucial for neuron migration during brain development, undergo significant morphological changes. These dynamics correlate with cortical layer growth and neuronal migration phases.
Area of Science:
- Neuroscience
- Developmental Biology
- Cell Biology
Background:
- Radial glial cells serve as critical scaffolds for neuronal migration during brain development.
- The dynamic morphological changes of radial glial cells throughout embryonic development remain poorly understood.
Purpose of the Study:
- To investigate the morphological dynamics of radial glial cells during mouse cortical development from embryonic day 14 to postnatal day 0.
- To correlate observed morphological changes with distinct phases of neuronal migration and cortical layer formation.
Main Methods:
- Utilized in utero electroporation for targeted labeling of radial glial cells.
- Employed immunohistochemistry to visualize and analyze cell morphology and cortical structure.
- Tracked changes in radial glial cell length, branching, and orientation over developmental time.
Main Results:
- Radial glial cell segments exhibited differential growth corresponding to the development of cortical layers (marginal zone, cortical plate, intermediate zone, ventricular zone).
- Significant alterations in radial glial cell length, angle, and branching occurred during the late stages of neurogenesis.
- Observed morphological changes aligned with distinct phases of neuronal locomotion.
Conclusions:
- Morphological plasticity of radial glial cells is intrinsically linked to the progression of neuronal migration.
- These structural dynamics likely play a key role in facilitating dendritic development and overall cortical organization.
