Liver DNA methylation analysis in adult female C57BL/6JxFVB mice following perinatal exposure to bisphenol A

J.C. van Esterik, A.P. Vitins, H.M. Hodemaekers, J.H. Kamstra, J. Legler, J.L.A. Pennings, W.T. Steegenga, C. Lute, J. Jelinek, J.P. Issa, M.E.T. Dollé, L.T.M. van der Ven

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Abstract

Bisphenol A (BPA) is a compound released from plastics and other consumer products used in everyday life. BPA exposure early in fetal development is proposed to contribute to programming of chronic diseases like obesity and diabetes, by affecting DNA methylation levels. Previously, we showed that in utero and lactational exposure of C57BL/6JxFVB hybrid mice via maternal feed using a dose range of 0–3000 µg/kg body weight/day resulted in a sex-dependent altered metabolic phenotype in offspring at 23 weeks of age. The most univocal effects were observed in females, with reduced body weights and related metabolic effects associated with perinatal BPA exposure. To identify whether the effects of BPA in females are associated with changes in DNA methylation, this was analyzed in liver, which is important in energy homeostasis. Measurement of global DNA methylation did not show any changes. Genome-wide DNA methylation analysis at specific CpG sites in control and 3000 µg/kg body weight/day females with the digital restriction enzyme analysis of methylation (DREAM) assay revealed potential differences, that could, however, not be confirmed by bisulfite pyrosequencing. Overall, we demonstrated that the observed altered metabolic phenotype in female offspring after maternal exposure to BPA was not detectably associated with liver DNA methylation changes. Still, other tissues may be more informative.
Original languageEnglish
Pages (from-to)293-300
JournalToxicology Letters
Volume232
Issue number1
DOIs
Publication statusPublished - 2015

Keywords

  • endocrine disruptors
  • disease
  • bpa
  • xenoestrogens
  • association
  • epigenetics
  • expression
  • nutrition
  • evolution
  • chemicals

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    van Esterik, J. C., Vitins, A. P., Hodemaekers, H. M., Kamstra, J. H., Legler, J., Pennings, J. L. A., Steegenga, W. T., Lute, C., Jelinek, J., Issa, J. P., Dollé, M. E. T., & van der Ven, L. T. M. (2015). Liver DNA methylation analysis in adult female C57BL/6JxFVB mice following perinatal exposure to bisphenol A. Toxicology Letters, 232(1), 293-300. https://doi.org/10.1016/j.toxlet.2014.10.021