News brief
Researchers at Baylor College of Medicine have found a way to address Alzheimer’s disease by utilising the brain’s support cells, astrocytes. By boosting a protein called Sox9, they enhanced these cells’ ability to clear amyloid plaques in mouse models. This reduced plaque buildup and preserved cognitive function in mice with memory issues.
Key points
- Astrocytes can be activated to clear amyloid plaques.
- Increasing Sox9 improves cognitive function in mice.
- The study suggests new approaches for Alzheimer’s treatments.
Astrocytes and Alzheimer’s
Astrocytes, the star-shaped cells in our brains, are vital for maintaining brain health. In Alzheimer’s, these support cells can be guided to remove harmful amyloid plaques, a hallmark of the disease. Researchers have focused on the protein Sox9, which influences astrocyte activity as we age, to see if it could aid in the fight against Alzheimer’s.
The Role of Sox9
In their study, scientists manipulated the Sox9 gene in Alzheimer’s mouse models. By increasing Sox9 levels, they observed that astrocytes became more active, leading to better clearance of amyloid plaques. Mice with higher Sox9 levels not only had fewer plaques but also showed improved cognitive function, indicating the protein’s potential to slow cognitive decline.
Implications for Treatment
These findings suggest that enhancing the brain’s natural support system could be a viable strategy for treating neurodegenerative diseases like Alzheimer’s. Understanding Sox9’s role in the human brain is the next step, but this study lays the groundwork for therapies that utilise astrocytes as a natural defence, providing an alternative to treatments that primarily target neurons.
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