Cell-suppressing treatments may be detrimental to Alzheimer's patients

New research from Trinity College Dublin indicates that suppressing brain immune cells, known as microglia, may worsen Alzheimer's disease symptoms. The study found that these cells are essential for maintaining neuronal network stability, suggesting that current therapeutic approaches targeting them may be counterproductive.
Why it matters
This finding challenges existing medical strategies for Alzheimer's treatment and highlights the complexity of brain inflammation in neurodegenerative diseases.
Irish research suggests that immune cells could play a critical role in maintaining the stability of neuronal networks in Alzheimer’s disease
Treatments that suppress the main immune cells of the brain could have a detrimental effect for Alzheimer’s patients, new Irish research suggests.
By driving brain inflammation, microglia are generally considered to accelerate Alzheimer’s disease. But the study found that reducing the number and activity of these cells unexpectedly worsened abnormal electrical activity in the brain and increased seizure-like events.
Researchers at Trinity College Dublin discovered that microglia could, in fact, play a critical role in maintaining the stability of neuronal networks in Alzheimer’s disease. Therefore, any treatment that negatively impacts these cells could be harmful for patients with the illness.
The study is particularly timely as therapies designed to alter microglial activity are currently being investigated as potential treatments for Alzheimer’s disease.
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