title: Endocrine Disruptors: Data-based survey of in vivo tests, predictive models and the Adverse Outcome Pathway.
abstract: The protection from endocrine disruptors is a high regulatory priority. Key issues are the characterization of in vivo assays, and the identification of reference chemicals to validate alternative methods. In this exploration, publicly available databases for in vivo assays for endocrine disruption were collected and compared: Rodent Uterotrophic, Rodent Repeated Dose 28-day Oral Toxicity, 21-Day Fish, and Daphnia magna reproduction assays. Only the Uterotrophic and 21-Day Fish assays results correlated with each other. The in vivo assays data were viewed in relation to the Adverse Outcome Pathway, using as a probe 18 ToxCast in vitro assays for the ER pathway. These are the same data at the basis of the EPA agonist ToxERscore model, whose good predictivity was confirmed. The multivariate comparison of the in vitro/in vivo assays suggests that the interaction with receptors is a major determinant of in vivo results, and is the critical basis for building predictive computational models. In agreement with the above, this work also shows that it is possible to build predictive models for the Uterotrophic and 21-Day Fish assays using a limited selection of Toxcast assays.
authors.affiliation: Environment and Health Department, Istituto Superiore di Sanita', Viale Regina Elena 299, 00161, Rome, Italy. Electronic address: romualdo.benigni@gmail.com.
authors.forename: Romualdo
authors.initials: R
authors.lastname: Benigni
authors.affiliation: Environment and Health Department, Istituto Superiore di Sanita', Viale Regina Elena 299, 00161, Rome, Italy.
authors.forename: Chiara Laura
authors.initials: CL
authors.lastname: Battistelli
authors.affiliation: Environment and Health Department, Istituto Superiore di Sanita', Viale Regina Elena 299, 00161, Rome, Italy.
authors.forename: Cecilia
authors.initials: C
authors.lastname: Bossa
authors.affiliation: Environment and Health Department, Istituto Superiore di Sanita', Viale Regina Elena 299, 00161, Rome, Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Giuliani
authors.affiliation: Environment and Health Department, Istituto Superiore di Sanita', Viale Regina Elena 299, 00161, Rome, Italy.
authors.forename: Olga
authors.initials: O
authors.lastname: Tcheremenskaia
mesh_terms: D000073931:Adverse Outcome Pathways; D000818:Animals; D001681:Biological Assay; D003621:Daphnia / Q000187:drug effects*; D052244:Endocrine Disruptors / Q000633:toxicity*; D004703:Endocrine System / Q000187:drug effects; D018675:Toxicity Tests
chemical_list: D052244:Endocrine Disruptors
keywords: Adverse Outcome Pathways; Alternative methods; Endocrine Disruptors; High-throughput; Human health; Modelling; Prediction