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Artificial plasticenta: how polystyrene nanoplastics affect in-vitro cultured human trophoblast cells
Summary
This lab study exposed placental cells (trophoblasts) to polystyrene nanoplastics and found signs of cell damage, metabolic stress, and structural breakdown under the microscope. The findings suggest that plastic nanoparticles could interfere with placental function during pregnancy, which raises concerns about potential effects on fetal development from everyday environmental plastic exposure.
Based on electron microscopy and immunofluorescence analysis and in vitro study, we demonstrate the cytotoxicity of PS-NPs in trophoblast cells together with ultrastructural alterations associated with cellular regression and degeneration typical of metabolic stress. An abnormal amount of NPs in the cells might determine a persistent cellular alarm CDR (cell danger response), the evolutionarily conserved metabolic response that protects the cells and hosts from harm triggered by chemical (as in the case of NPs/MPs), physical, or biological agents that exceed the cellular capacity for homeostasis. This in vitro study could further help to demonstrate that the inevitable exposure of MPs/NPs in the environment, which characterizes the modern world, might be partially responsible for the epidemic of non-transmissible disease.