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Open AccessArticle

In Vitro Genotoxicity of Polystyrene Nanoparticles on the Human Fibroblast Hs27 Cell Line

1
Department of Life, Health and Environmental Sciences, University of L’Aquila, I-67100 L’Aquila, Italy
2
Center for Microscopy, University of L’Aquila, I-67100 L’Aquila, Italy
3
Department of Psychological, Health & Territorial Sciences, University “G. d’Annunzio” of Chieti-Pescara, I-66100 Chieti, Italy
4
Center of Excellence on Aging and Translational Medicine—Ce.S.I.-Me.T. University “G. d’Annunzio” of Chieti-Pescara, I-66100 Chieti, Italy
*
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(9), 1299; https://doi.org/10.3390/nano9091299
Received: 2 August 2019 / Revised: 4 September 2019 / Accepted: 5 September 2019 / Published: 11 September 2019
Several studies have provided information on environmental nanoplastic particles/debris, but the in vitro cyto-genotoxicity is still insufficiently characterized. The aim of this study is to analyze the effects of polystyrene nanoparticles (PNPs) in the Hs27 cell line. The viability of Hs27 cells was determined following exposure at different time windows and PNP concentrations. The genotoxic effects of the PNPs were evaluated by the cytokinesis-block micronucleus (CBMN) assay after exposure to PNPs. We performed ROS analysis on HS27 cells to detect reactive oxygen species at different times and treatments in the presence of PNPs alone and PNPs added to the Crocus sativus L. extract. The different parameters of the CBMN test showed DNA damage, resulting in the increased formation of micronuclei and nuclear buds. We noted a greater increase in ROS production in the short treatment times, in contrast, PNPs added to Crocus sativus extract showed the ability to reduce ROS production. Finally, the SEM-EDX analysis showed a three-dimensional structure of the PNPs with an elemental composition given by C and O. This work defines PNP toxicity resulting in DNA damage and underlines the emerging problem of polystyrene nanoparticles, which extends transversely from the environment to humans; further studies are needed to clarify the internalization process. View Full-Text
Keywords: polystyrene nanoparticles; nanoplastics; genotoxicity; Hs27 human fibroblasts polystyrene nanoparticles; nanoplastics; genotoxicity; Hs27 human fibroblasts
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Poma, A.; Vecchiotti, G.; Colafarina, S.; Zarivi, O.; Aloisi, M.; Arrizza, L.; Chichiriccò, G.; Di Carlo, P. In Vitro Genotoxicity of Polystyrene Nanoparticles on the Human Fibroblast Hs27 Cell Line. Nanomaterials 2019, 9, 1299.

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