'Zombie' cells play an unexpected role in the developing brain

Among the body's most crucial protective features are the brain barrier systems, including the blood-brain and blood-cerebrospinal fluid (CSF) barriers. These barriers are made of highly specialized cells that allow essential nutrients to enter yet repel dangerous toxins and pathogens that may be circulating in the bloodstream. Scientists have long known what these barriers do, but less about how they are built during development.

Raccontata damedicalxpress.com