Maternal Exposure to Polystyrene Nanoplastics Disrupts Spermatogenesis in Mouse Offspring by Inducing Overexpression in Undifferentiated Spermatogonia.

Undifferentiated spermatogonia (Undiff-SPG) plays a critical role in maintaining continual spermatogenesis. However, the toxic effects and molecular mechanisms of maternal exposure to nanoplastics on offspring Undiff-SPG remain elusive. Here, we utilized a multiomics combined cytomorphological approach to explore the reproductive toxicity and mechanisms of polystyrene nanoplastics (PS-NPs) on offspring Undiff-SPG in mice after maternal exposure.