Silver and Polystyrene Nanoparticles Act as Endocrine Disruptors via Copper-Dependent CK2/AKT Signaling in Breast Cancer

Summary

Scientists found that tiny particles of silver (used in some antibacterial products) and polystyrene (a common type of microplastic) can interfere with hormone-related signaling in breast cancer cells, and that copper plays a key role in triggering this effect. This matters because it suggests these widespread materials may act as "endocrine disruptors" — substances that can throw off the body's natural hormone balance — raising questions about their long-term safety, especially for hormone-sensitive tissues.