Cancer ResearchNew Senolytic Drugs Force Cancer's Zombie Cells to Self-Destruct
Researchers at MRC Laboratory of Medical Sciences and Imperial College London screened 10,000 compounds to find drugs that selectively kill senescent cells — so-called zombie cells that linger after chemotherapy and fuel cancer aggression and aging-related disease. They discovered that three promising compounds target GPX4, a protein that shields senescent cells from ferroptosis, an iron-triggered form of cell death. By blocking GPX4, the drugs strip away this protection, forcing zombie cells to self-destruct. In mouse models, the approach reduced tumor size and improved survival. The findings, published in Nature Cell Biology, suggest these senolytic drugs could be combined with standard chemotherapy to prevent the harmful downstream effects of senescent cells on tumor growth and metastasis.
