Título:
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Prenatal exposure to mixtures of xenoestrogens and genome-wide DNA methylation in human placenta
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Autor/a:
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Vilahur Chiaraviglio, Nadia, 1982-; Bustamante Pineda, Mariona; Morales, Eva; Motta, Valeria; Fernandez, Mariana F.; Salas, Lucas A.; Escaramís, Geòrgia; Ballester Díez, Ferran; Murcia, Mario; Tardón, Adonina; Riaño, Isolina; Santa Marina, Loreto; Ibarluzea, Jesús; Arrebola, Juan Pedro; Estivill, Xavier, 1955-; Bollati, Valentina; Sunyer Deu, Jordi; Olea, Nicolás
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Abstract:
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BACKGROUND: In utero exposure to xenostrogens may modify the epigenome. We explored the association of prenatal exposure to mixtures of xenoestrogens and genome-wide placental DNA methylation. MATERIALS & METHODS: Sex-specific associations between methylation changes in placental DNA by doubling the concentration of TEXB-alpha exposure were evaluated by robust multiple linear regression. Two CpG sites were selected for validation and replication in additional male born placentas. RESULTS: No significant associations were found, although the top significant CpGs in boys were located in the LRPAP1, HAGH, PPARGC1B, KCNQ1 and KCNQ1DN genes, previously associated to birth weight, Type 2 diabetes, obesity or steroid hormone signaling. Neither technical validation nor biological replication of the results was found in boys for LRPAP and PPARGC1B. CONCLUSION: Some suggestive genes were differentially methylated in boys in relation to prenatal xenoestrogen exposure, but our initial findings could not be validated or replicated. |
Abstract:
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This work was part of the European-wide project Transportation Air pollution and Physical ActivitieS (TAPAS): an integrated health risk assessment program of climate change and urban policies, which had partners in Barcelona, Basel, Copenhagen, Paris, Prague, and Warsaw. TAPAS was a 4-year project funded by the Coca-Cola Foundation, AGAUR, and CREAL (http://www.tapas-program.org/). CREAL is part of CIBERESP (http://www.ciberesp.es/), the Spanish Network for Epidemiology and Public Health Research. CREAL and its members are based at and supported by the Universitat Pompeu Fabra (http://www.upf.edu/en/). |
Materia(s):
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-ADN -Placenta -DNA methylation -TEXB -Endocrine disruptors -Epigenome xenoestrogens -Placenta -Prenatal -Programming |
Derechos:
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© Future Medicine http://dx.doi.org/10.2217/epi.15.91 |
Tipo de documento:
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Artículo Artículo - Versión aceptada |
Editor:
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Future Medicine
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