PMID- 23339137 OWN - NLM STAT- MEDLINE DCOM- 20141105 LR - 20181202 IS - 1522-7278 (Electronic) IS - 1520-4081 (Linking) VI - 29 IP - 10 DP - 2014 Oct TI - An "ex vivo" model to evaluate toxicological responses to mixtures of contaminants in cetaceans: integumentum biopsy slices. PG - 1107-21 LID - 10.1002/tox.21841 [doi] AB - The need for powerful new tools to detect the effects of chemical pollution, in particular of persistent organic pollutants (POPs) and polycyclic aromatic hydrocarbons (PAHs) on Mediterranean cetaceans led us to develop and apply a suite of sensitive biomarkers for integument biopsies of stranded and free-ranging animals. This multi-response ex vivo method has the aim to detect toxicological effects of contaminant mixtures. In the present study, we applied an ex vivo assay using skin biopsy and liver slices, combining molecular biomarkers [Western blot of Cytochrome P450 1A1 (CYP1A1) and Cytochrome P450 2B (CYP2B)] and gene expression biomarkers (Quantitative real-time PCR of CYP1A1, heat shock protein 70, estrogen receptor alpha and E2F transcription factor) in response to chemical exposure [organochlorines compounds (OCs), polybrominated diphenyl ethers (PBDEs), and PAHs] for stranded Mediterranean Stenella coeruleoalba. The main goal of this experiment was to identify the biomarker and/or a suite of biomarkers that could best detect the presence of a specific class of pollutants (OCs, PBDEs, and PAHs) or a mixture of them. This multi-response biomarker methodology revealed an high sensitivity and selectivity of responses (such as CYP1A and ER alpha mRNA variations after OCs and PAHs exposure) and could represent a valid future approach for the study of inter- and intra-species sensitivities to various classes of environmental contaminants. CI - Copyright (c) 2013 Wiley Periodicals, Inc., a Wiley company. FAU - Fossi, Maria Cristina AU - Fossi MC AD - Department of Earth, Physical and Environmental Sciences, University of Siena, Via P.A. Mattioli 4, 53100 Siena, Italy. FAU - Casini, Silvia AU - Casini S FAU - Maltese, Silvia AU - Maltese S FAU - Panti, Cristina AU - Panti C FAU - Spinsanti, Giacomo AU - Spinsanti G FAU - Marsili, Letizia AU - Marsili L LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130122 PL - United States TA - Environ Toxicol JT - Environmental toxicology JID - 100885357 RN - 0 (Estrogen Receptor alpha) RN - 0 (Halogenated Diphenyl Ethers) RN - 0 (Hydrocarbons, Chlorinated) RN - 0 (Polycyclic Aromatic Hydrocarbons) RN - 0 (Water Pollutants, Chemical) RN - EC 1.14.14.1 (Aryl Hydrocarbon Hydroxylases) SB - IM MH - Animals MH - Aryl Hydrocarbon Hydroxylases/analysis/genetics MH - Biopsy MH - Estrogen Receptor alpha/genetics MH - Gene Expression Regulation/drug effects MH - Halogenated Diphenyl Ethers/*toxicity MH - Hydrocarbons, Chlorinated/*toxicity MH - Liver/drug effects/metabolism MH - Polycyclic Aromatic Hydrocarbons/*toxicity MH - Real-Time Polymerase Chain Reaction MH - Skin/drug effects/metabolism MH - Stenella/genetics/*physiology MH - Water Pollutants, Chemical/*toxicity OTO - NOTNLM OT - Mediterranean cetaceans OT - Stenella coeruleoalba OT - biological response OT - lipophilic contaminant OT - skin organotypic cultures OT - treatments EDAT- 2013/01/23 06:00 MHDA- 2014/11/06 06:00 CRDT- 2013/01/23 06:00 PHST- 2012/02/14 00:00 [received] PHST- 2012/12/10 00:00 [revised] PHST- 2012/12/10 00:00 [accepted] PHST- 2013/01/23 06:00 [entrez] PHST- 2013/01/23 06:00 [pubmed] PHST- 2014/11/06 06:00 [medline] AID - 10.1002/tox.21841 [doi] PST - ppublish SO - Environ Toxicol. 2014 Oct;29(10):1107-21. doi: 10.1002/tox.21841. Epub 2013 Jan 22.