New technique discovers previously unknown population of immune cells in the Alzheimer's brain

A newly developed microscopy technique allows, for the first time, the visualization of more than 30 protein markers simultaneously in the human brain and uses bioinformatics to analyze their spatial relationships. In the process, the researchers have discovered a previously unknown population of immune cells in the brains of Alzheimer's patients that is found almost exclusively in the vicinity of a specific type of pathological protein deposit.