Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8476953 | Molecular and Cellular Endocrinology | 2015 | 9 Pages |
Abstract
Bisphenol A (BPA) and para-Nonylphenol (p-NP) are chemicals of industrial origin which may influence human reproductive health. The effects of these substances in the prenatal life is an important topic that is receiving greater attention in the developed countries. In this study, human trophoblast cells HTR-8/SVneo were exposed to BPA and p-NP (1âÃâ10â15, 1âÃâ10â13, 1âÃâ10â11, 1âÃâ10â9 and 1âÃâ10â7âM) and incubated for 24, 48 and/or 72âh then, examined for the main physiological processes which characterize the extravillous trophoblast. Cell proliferation showed no changes while the processes of cell migration and invasion were both reduced by BPA and p-NP. For each chemical, the activity was higher at lower concentrations with a maximum activity between 1âÃâ10â13 and 1âÃâ10â11âM (pâ<â0.05 for 1âÃâ10â9 and pâ<â0.001 for 1âÃâ10â11âM). Co-culture studies with human umbilical cord endothelial cells (HUVEC) revealed that trophoblast/endothelial interaction was significantly reduced by p-NP at 1âÃâ10â11âM. Moreover, both chemicals were inducing differentiation of HTR-8/SVneo toward polyploidy by the process of endoreduplication. The estrogen-receptor antagonist ICI significantly reduced p-NP action, while it had no effect on BPA treated cells. In conclusion, p-NP and BPA act on trophoblast cells altering key physiological processes in placenta development. The exact mechanism of action of the chemicals in human trophoblast still needs to be clarified.
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Authors
Antonella Spagnoletti, Luana Paulesu, Chiara Mannelli, Leonardo Ermini, Roberta Romagnoli, Marcella Cintorino, Francesca Ietta,