Outer Radial Glia is an important cell type in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Outer Radial Glia (oRG) are a specialized type of radial glial cell located in the outer subventricular zone (OSVZ) of the developing cortex. These cells are particularly abundant in primates and are thought to be major contributors to the evolutionary expansion of the cerebral cortex. [1]
| Database | ID | Name | Confidence | [2]
|----------|----|------|------------| [3]
| Cell Ontology | CL:0000681 | radial glial cell | Medium |
oRG are major producers of cortical neurons in the OSVZ. They undergo:
| Species | oRG Abundance | Cortical Expansion |
|---|---|---|
| Mouse | Very low | Minimal |
| Ferret | Moderate | Moderate |
| Primate | High | Significant |
| Human | Very high | Extreme |
The abundance of oRG correlates strongly with cortical surface area and gyrification.
While oRG are primarily developmental, their study has implications for:
Patient-derived iPSCs can be differentiated into oRG-like cells to model:
Understanding oRG biology contributes to:
oRG-like cells from patients with:
The study of Outer Radial Glia has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
Lui et al. The development and evolution of the human neocortex (2011). 2011. ↩︎
Betizeau et al. Precursor diversity and complexity of cortical GABAergic interneurons (2013). 2013. ↩︎
Girard et al. Outer radial glia in the ferret cortex (2007). 2007. ↩︎