Astrocytic gene networks link cell shape to cognitive function and disease risk
In short: Researchers studying the mouse central nervous system found that astrocytes, a complex type of glial cell, possess distinct molecular profiles across different brain regions. This study identified specific gene networks that correlate with the physical shape of these cells, revealing that several of these genes are also linked to Alzheimer's disease risk.
By using CRISPR/Cas9 to reduce the activity of candidate genes, researchers observed a decrease in astrocyte morphological complexity and a corresponding decline in cognitive function. This suggests that the physical structure of astrocytes is tied to brain performance.
The study also noted that these same genes were found to be down-regulated in human Alzheimer's disease and other brain disorders, though the findings were primarily based on mouse models.
Why it matters: The physical structure of astrocytes is closely tied to genetic networks involved in cognitive health and disease.
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Sources
- Summary by Intellect · source: Research: Endo et al. (2022). Molecular basis of astrocyte diversity and morphology across the CNS in health and disease. Science (New York, N.Y.).
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