Developmental toxicity and endocrine disrupting potency of 4-azapyrene, benzo[b]fluorene and retene in the zebrafish Danio rerio

Hawliczek, Alessa; Nota, B.; Cenijn, P.; Kamstra, J.; Pieterse, B.; Winter, R.; Winkens, K.; Hollert, H.; Segner, Helmut; Legler, J. (2012). Developmental toxicity and endocrine disrupting potency of 4-azapyrene, benzo[b]fluorene and retene in the zebrafish Danio rerio. Reproductive Toxicology, 33(2), pp. 213-23. Elsevier 10.1016/j.reprotox.2011.11.001

Text 1-s2.0-S0890623811004023-main.pdf - Published Version Restricted to registered users only Available under License Publisher holds Copyright. Download (914kB) | Request a copy

This study examined the developmental toxicity of the polycyclic aromatic hydrocarbons (PAHs) 11H-benzo(b)fluorene (BBF) and 4-azapyrene (AP) in comparison to the known teratogen retene. Developmental toxicity assays were performed in zebrafish embryos exposed for 120 h. BBF and retene induced a similar dioxin-like phenotype, whereas AP showed distinct effects, particularly craniofacial malformations. Microarray analysis revealed that for BBF and retene, drug metabolism pathways were induced, which were confirmed by subsequent studies of cyp1a gene expression. For AP, microarray analysis revealed the regulation of genes involved in retinoid metabolism and hematological functions. Studies with a panel of CALUX((R)) bioassays to screen for endocrine disrupting activity of the compounds also revealed novel antagonistic effects of BBF and retene on androgen and progesterone receptors. Classification analysis revealed distinct gene expression profiles for both individual and combined PAH exposure. This study highlights the potential health risk of non priority PAHs.

Interest & Impact

Downloads

1 since deposited on 27 Jan 2014
0 in the past 12 months

Citations

5 Citations in Web of Science ®
6 Citations in Scopus

Search

in Google Scholar™

Services

Actions (login required)

Edit item

Actions (login required)

Edit item