Mouse Study Offers Clues to a Possible New Way of Slowing Alzheimer’s
Summary
A mouse study found that disrupting the Alzheimer’s risk gene CASS4 made brain immune cells less effective at containing amyloid-beta plaques. The researchers say the findings point to CASS4 as a possible treatment target, but it is not known whether boosting the gene would help people with Alzheimer’s.Key Facts
- CASS4 has previously been identified as a gene linked to Alzheimer’s risk.
- Researchers found that CASS4 helps microglia, the brain’s immune cells, contain and compact amyloid-beta plaques.
- In mice with disrupted CASS4, plaques spread more, neurons were damaged, and the animals experienced faster cognitive decline.
- The loss of CASS4 also caused wider changes in gene activity that researchers say may be relevant to other neurodegenerative diseases.
- The team says therapies that promote CASS4 activity in microglia could potentially limit Alzheimer’s progression.
- The findings are from laboratory mice, and it remains unclear whether the results apply to people.
- Researchers plan to investigate CASS4’s role in other conditions, including Parkinson’s disease, ALS, and multiple sclerosis.
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