Refreshing the Brain's Immune Cells Could Treat a Host of Diseases

4 months ago

Microglia are immune cells in the brain that protect against pathogens, clean toxic proteins, and shape neural connections.
Microglia can regenerate, but genetic mutations or aging can impair their function, leading to neurodegenerative diseases.
Microglia replacement therapy is emerging as a potential treatment for conditions like Alzheimer's and rare genetic disorders.
Bone marrow transplants can introduce healthy microglia precursors into the brain, but require harsh pre-treatment like radiation or chemotherapy.
Recent studies show success in treating diseases like CAMP and Sandhoff disease with microglia replacement, halting cognitive decline.
Alternative methods, such as lab-grown microglia or iPSC-derived microglia, are being explored to reduce immune rejection and side effects.
Microglia replacement therapy has progressed from animal studies to clinical trials, showing promise for broader neurological applications.

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