Abstract

Reproduction and development are highly integrated, hormonally dependent processes that can be acutely sensitive to chemical insult. Several halogenated polycyclic aromatic hydrocarbons, which are common Superfund contaminants, exhibit agonist as well as antagonist hormonal activity and are therefore potential reproductive and developmental toxicants. This project is composed of three subprojects. Each subproject has a different approach to the study of reproductive toxicity, yet the subprojects share the overall objectives of (1) characterizing the effects of selected halogenated polycyclic aromatic hydrocarbons on reproduction and development, (2) investigating the mechanisms that initiate and mediate the chemical-induced alterations in reproduction and development, (3) assessing possible health risks arising from exposure to these chemicals. This subproject will study chemical estrogenicity by developing in vitro bioassay systems of human, rodent and fish cell lines stably transfected with an estrogen-responsive genetically engineered luciferase reporter system. The response of transfected cell lines will be compared to other measures of estrogenicity such as the mouse in vivo uterotropic assay and MCF-7 cell line proliferation. These bioassay systems will enable rapid assessment of estrogenicity of complex environmental mixtures.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Institute of Environmental Health Sciences (NIEHS)
Type
Hazardous Substances Basic Research Grants Program (NIEHS) (P42)
Project #
5P42ES004911-08
Application #
5211170
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
8
Fiscal Year
1996
Total Cost
Indirect Cost

  Publications

Nault, Rance; Doskey, Claire M; Fader, Kelly A et al. (2018) Comparison of Hepatic NRF2 and Aryl Hydrocarbon Receptor Binding in 2,3,7,8-Tetrachlorodibenzo-p-dioxin-Treated Mice Demonstrates NRF2-Independent PKM2 Induction. Mol Pharmacol 94:876-884
Dornbos, Peter; LaPres, John J (2018) Incorporating population-level genetic variability within laboratory models in toxicology: From the individual to the population. Toxicology 395:1-8
Zhang, Shuai; Liu, Qinfu; Gao, Feng et al. (2018) Interfacial Structure and Interaction of Kaolinite Intercalated with N-methylformamide Insight from Molecular Dynamics Modeling. Appl Clay Sci 158:204-210
Fader, Kelly A; Nault, Rance; Raehtz, Sandi et al. (2018) 2,3,7,8-Tetrachlorodibenzo-p-dioxin dose-dependently increases bone mass and decreases marrow adiposity in juvenile mice. Toxicol Appl Pharmacol 348:85-98
Zhang, Shuai; Liu, Qinfu; Cheng, Hongfei et al. (2018) Mechanism Responsible for Intercalation of Dimethyl Sulfoxide in Kaolinite: Molecular Dynamics Simulations. Appl Clay Sci 151:46-53
Zhang, Qiang; Li, Jin; Middleton, Alistair et al. (2018) Bridging the Data Gap From in vitro Toxicity Testing to Chemical Safety Assessment Through Computational Modeling. Front Public Health 6:261
Fader, K A; Nault, R; Kirby, M P et al. (2018) Corrigendum to ""Convergence of hepcidin deficiency, systemic iron overloading, heme accumulation, and REV-ERB?/? activation in aryl hydrocarbon receptor-elicited hepatotoxicity"" [Toxicol. Appl. Pharmacol. 321 (2017) 1-17]. Toxicol Appl Pharmacol 344:74
Konganti, Kranti; Ehrlich, Andre; Rusyn, Ivan et al. (2018) gQTL: A Web Application for QTL Analysis Using the Collaborative Cross Mouse Genetic Reference Population. G3 (Bethesda) 8:2559-2562
Zhang, Shuai; Liu, Qinfu; Gao, Feng et al. (2018) Molecular Dynamics Simulation of Basal Spacing, Energetics, and Structure Evolution of a Kaolinite-Formamide Intercalation Complex and Their Interfacial Interaction. J Phys Chem C Nanomater Interfaces 122:3341-3349
Williams, M R; Stedtfeld, R D; Waseem, H et al. (2017) Implications of direct amplification for measuring antimicrobial resistance using point-of-care devices. Anal Methods 9:1229-1241

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