Scientists find a way to fight Alzheimer’s brain damage without removing toxic tau
Scientists at Washington University have found that blocking the CXCR3 protein can reduce brain cell death in mice with Alzheimer's-like tau buildup. By limiting the entry of immune T cells into the brain, the treatment preserved memory and tissue without needing to remove the toxic tau protein itself.
Why it matters
This discovery suggests a new therapeutic pathway for neurodegenerative diseases that focuses on mitigating the immune response rather than just clearing protein aggregates.
Protecting brain cells from destruction remains one of the biggest challenges in treating Alzheimer's disease and related neurodegenerative conditions. These disorders, known as tauopathies, involve the buildup of abnormal tangles of a protein called tau inside the brain. As the tangles accumulate, nearby neurons begin to die. However, growing evidence suggests that tau itself may not be responsible for most of the damage. Instead, the immune system's reaction to the protein appears to play a major role in the loss of brain cells, memory, and independence.
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