Internalized polystyrene nanoplastics trigger testicular damage and promote ferroptosis via CISD1 downregulation in mouse spermatocyte

Summary

Researchers found that polystyrene nanoplastics cause testicular damage in mice through a cell death process called ferroptosis. The nanoplastics triggered the breakdown of iron-storage proteins and reduced levels of a protective mitochondrial protein called CISD1 in sperm cells. The study suggests that nanoplastic exposure may contribute to male reproductive harm by driving excess iron into mitochondria.