New Insights into Glioblastoma: Active Immune Cells Discovered in Cranial Bone Marrow
In a groundbreaking study published in Nature Medicine , researchers have identified active immune cells in the cranial bone marrow , suggesting a more dynamic immune environment in the brain than previously understood. Historically, the brain has been considered an “immune-privileged” organ, with minimal immune activity due to the neuro-immune barrier. However, recent findings indicate that both innate and adaptive immune cells are present in areas like the choroid plexus, meninges, and dural sinuses, forming a critical interface between the central nervous system (CNS) and the rest of the body. This discovery challenges the conventional view, revealing that immune cells can indeed influence brain function and pathology, particularly in the context of malignant diseases such as glioblastoma. The disruption of this neuro-immune barrier has been implicated in the development of glioblastomas, aggressive brain tumors with limited treatment options. Immune checkpoint inhibitors, a pr...