1167-Regional Principles of Neuronal Protein Clearance

Paper Talk · Jun 22, 2026 · 23m

Researchers have developed a novel genetic tracing system to map how proteins produced in the brain are cleared through surrounding tissues. Unlike traditional injected tracers that often bypass the brain, this non-invasive ZsGreen reporter reveals that waste follows a "nearest exit" principle, where the anatomical origin of a protein determines its specific drainage route. The study identifies distinct immune niches in the skull and dura, such as tolerogenic B cells, that monitor these brain-derived antigens to maintain immune balance. Furthermore, the findings demonstrate that…