Combined Effects of Nonylphenol and Bisphenol A on the Human Prostate Epithelial Cell Line RWPE-1

The xenoestrogens nonylphenol (NP) and bisphenol A (BPA) are regarded as endocrine disrupting chemicals (EDCs) which have widespread occurrence in our daily life. In the present study, the purpose was to analyze the combined effects of NP and BPA on the human prostate epithelial cell line RWPE-1 using two mathematical models based on the Loewe additivity (LA) theory and the Bliss independence (BI) theory. RWPE-1 cells were treated with NP (0.01-100 mu M) and BPA (1-5000 mu M) in either a single or a combined format. A cell viability assay and lactate dehydrogenase (LDH) leakage rate assay were employed as endpoints. As predicted by the two models and based on the cell viability assay, significant synergism between NP and BPA were observed. However, based on the LDH assay, the trends were reversed. Given that environmental contaminants are frequently encountered simultaneously, these data indicated that there were potential interactions between NP and BPA, and the combined effects of the chemical mixture might be stronger than the additive values of individual chemicals combined, which should be taken into consideration for the risk assessment of EDCs.

Zhou, M. (author)
Xiang, ZouGothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för mikrobiologi och immunologi,Institute of Biomedicine, Department of Microbiology and Immunology(Swepub:gu)xxiazo (author)
Han, X. D. (author)
Li, D. M. (author)
Göteborgs universitetInstitutionen för biomedicin, avdelningen för mikrobiologi och immunologi (creator_code:org_t)

In:International Journal of Environmental Research and Public Health: MDPI AG12:4, s. 4141-41551660-4601

By the author/editor: Gan, W. D.; Zhou, M.; Xiang, Zou; Han, X. D.; Li, D. M.

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