Brain HealthScientists Reprogram Brain Immune Cells to Clear Alzheimer's Plaques
Researchers in Spain and Switzerland have identified a molecule called OLE that can reprogram microglia, the brain's immune cells, to fight Alzheimer's disease more effectively. In healthy brains, microglia help clear toxic beta-amyloid plaques, but in Alzheimer's they become impaired. OLE, derived from the PM20D1 gene, appears to reverse this decline, helping microglia surround and contain plaques and reducing their damage to neurons. In mouse models, three months of OLE treatment led to fewer plaques and better memory test performance. Earlier tests in C. elegans worms also showed reduced protein aggregates and improved movement. Single-cell analysis confirmed microglia as the primary responders. The findings, published in Cell Death and Disease, suggest a novel therapeutic avenue targeting immune cell reprogramming rather than plaques directly.
