ArticleMicroplastics and nanoplastics2026
Potential toxicity of micro- and nanoplastics in primary bronchial epithelial cells of patients with chronic obstructive pulmonary disease.
Article in Microplastics and nanoplastics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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10 authors.
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Abstract
Background: The environmental presence of airborne micro- and nanoplastics (MNPs) raises concerns about their impact on the development and progression of respiratory diseases, including chronic obstructive pulmonary disease (COPD). In this study, we investigated the potential toxicity of amorphous, environmentally relevant MNPs in primary bronchial epithelial cells (PBEC) exposed at the air-liquid interface (ALI). Methods: Differentiated PBEC cultures from COPD donors ( Results: All PBEC cultures formed an intact epithelial barrier. However, transepithelial electrical resistance (TEER) and transcript levels of tight junction protein Claudin 4 were lower (FC = 0.36, Conclusion: These results indicate that MNP exposure, especially PA, can induce (sub)toxic effects in PBEC, with substantial inter-donor variability. Whether this impacts COPD development remains to be studied. Supplementary Information: The online version contains supplementary material available at 10.1186/s43591-025-00166-1.
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