A characteristic feature of Alzheimer’s disease is the presence of so called amyloid plaques in the patient’s brain - aggregates of misfolded proteins that clump together and damage nerve cells. Although the body has mechanisms to dispose these aggregates, it apparently cannot keep up with the load in the diseased brain. Researchers from the German Center for Neurodegenerative Diseases (DZNE), Munich and the Ludwig Maximilians University (LMU) Munich have now discovered a strategy to help the brain remove amyloid plaques. More precisely: they uncovered a factor that can activate microglial cells to engulf newly forming clumps in the brain. Microglia are the scavenger cells of the brain’s immune system that function in keeping the brain tidy and free of any damaging material. The work is published today in The EMBO Journal.
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