Neuroinflammation plays a critical role in various neurological disorders, with recent studies highlighting the intricate relationship between the nervous system and immune responses. One study demonstrated that neural activity regulates the development of meningeal mural lymphatic endothelial cells (muLECs) through a specialized glial subpopulation in zebrafish, suggesting a novel mechanism by which the brain influences immune system development (ref: Li doi.org/10.1016/j.cell.2025.04.008/). Another study focused on the role of interleukin-34 in the maintenance of brain border-associated macrophages (BAMs), revealing that while CSF-1 is essential for their embryonic development, IL-34 is crucial for their adult maintenance, indicating a potential target for therapeutic interventions in neuroinflammatory conditions (ref: Van Hove doi.org/10.1016/j.immuni.2025.04.003/). Furthermore, the study of glioblastoma revealed that regions with enhanced neuronal connectivity exhibit regional immunosuppression, characterized by distinct immune cell compositions, which could have implications for tumor progression and treatment strategies (ref: Nejo doi.org/10.1038/s41467-025-60074-z/). Contradictory findings were observed in the context of neuropathic pain, where microglial activation following peripheral nerve injury was shown to lead to synaptic loss, emphasizing the dual role of microglia in both neuroprotection and neurodegeneration (ref: Yousefpour doi.org/10.1038/s41467-025-59849-1/). Overall, these studies underscore the complex interplay between neuroinflammation and immune responses in the context of neurological disorders, highlighting potential therapeutic avenues.