New drugs could wipe out the “zombie cells” linked to cancer and aging
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- MRC Laboratory of Medical Sciences and Imperial College London researchers identify GPX4 as a critical shield enabling senescent 'zombie cells' to survive in a fragile, pro-inflammatory state
- Mariantonietta D'Ambrosio leads a drug screen of 10,000 compounds to find agents that selectively kill senescent cells by disabling GPX4 protection
- Senescent cells accumulate after chemotherapy and secrete factors that promote tumor metastasis, immune dysfunction, and tissue damage, undermining treatment gains
- New experimental drugs strip GPX4 protection from zombie cells, triggering ferroptosis—an iron-driven self-destruction process—reducing tumor size and boosting survival in mouse models
Why it matters: Cancer patients undergoing chemotherapy could benefit from follow-up treatments that eliminate lingering senescent cells, potentially reducing relapse and metastasis. The approach targets a biological mechanism shared with aging diseases, opening paths for dual-use therapies.
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