0
0Modern scientific research has overturned the traditional view of the brain as an isolated, "immune-privileged" organ, instead revealing it to be a dynamic immunological interface. Key discoveries such as the meningeal lymphatic vessels and the glymphatic system demonstrate that the central nervous system actively drains waste and communicates with the peripheral immune system. The blood-brain barrier is no longer seen as an impenetrable wall but as a selective gateway where microglia and astrocytes actively manage inflammation and tissue repair. Furthermore, external factors like gut microbiota and systemic signals significantly influence the brain's internal immune environment through these complex borders. This paradigm shift offers new possibilities for treating neurodegenerative diseases, multiple sclerosis, and brain tumors by targeting these newly discovered pathways. Collectively, the sources portray a highly integrated network where the brain is constantly monitored and protected by a sophisticated, body-wide immune dialogue.
References:
Kobeissy F, Salzet M. Beyond immune privilege: the brain as a dynamic immunological interface[J]. Cell Death & Disease, 2026.
