Tumor-released cystatin-C may help clear Alzheimer's plaques in mice
TL;DR
A mouse study found that human tumors implanted in Alzheimer’s-model mice released cystatin-C into the bloodstream, which crossed the blood–brain barrier and bound to amyloid-beta plaques. This activated brain microglia via Trem2, boosting plaque clearance and sometimes improving memory. While intriguing as a potential pathway to treat or prevent Alzheimer’s, the findings are in mice and may not translate to humans, where cancer and Alzheimer's have a complex, inverse epidemiological relationship. Future work may explore therapies that mimic cystatin-C’s beneficial effects without cancer.
- People who survive cancers are less likely to develop Alzheimer’s – this might be why The Conversation
- Surprising way cancer cells clear problematic proteins in the brain New Atlas
- Cancer tumors may protect against Alzheimer's by cleaning out protein clumps Medical Xpress
- Cancer May Help To Protect Us From Dementia HuffPost UK
- The Biological Paradox: How Cancer Cells May Hold the Key to Preventing Alzheimer's Disease WebProNews
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