Coplanar and non-coplanar congener-specificity of PCB bioaccumulation and immunotoxicity in sea stars
Danis, B.; Cattini, C.; Teyssié, J.-L.; Villeneuve, J.-P.; Fowler, S.W.; Warnau, M. (2006). Coplanar and non-coplanar congener-specificity of PCB bioaccumulation and immunotoxicity in sea stars. Aquat. Toxicol. 79(2): 105-113. dx.doi.org/10.1016/j.aquatox.2006.05.004
In: Aquatic Toxicology. Elsevier Science: Tokyo; New York; London; Amsterdam. ISSN 0166-445X; e-ISSN 1879-1514, more
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| Keywords |
Biological phenomena > Accumulation > Bioaccumulation
Chemical compounds > Organic compounds > Hydrocarbons > Unsaturated hydrocarbons > Aromatic hydrocarbons > PCB
Detoxification
Properties > Biological properties > Tolerance > Toxicity tolerance
Asterias rubens Linnaeus, 1758 [WoRMS]; Echinodermata [WoRMS]
ANE, France, Nord, Pas-de-Calais [Marine Regions]
Marine/Coastal |
| Author keywords |
polychlorinated biphenyls; echinoderms; bioaccumulation; immunotoxicity; detoxification |
| Authors | | Top |
- Danis, B., more
- Cattini, C.
- Teyssié, J.-L.
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- Villeneuve, J.-P.
- Fowler, S.W.
- Warnau, M.
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| Abstract |
The sea star Asterias rubens (L.), a representative species of the North Sea benthic environment, was exposed to a mixture of 10 selected PCB congeners (3 coplanar or c-PCBs, and 7 non-coplanar) via experimentally contaminated sediments. Both the degree of bioaccumulation and subsequent immunotoxic effects of these PCBs were determined. A strong congener-specificity for both bioaccumulation and immunotoxicity was found as well as a probable induction of a congener-specific detoxification mechanism resulting in the dramatic decrease in body levels of the three coplanar congeners tested (PCBs 77, 126 and 169). Moreover, a correlation was found between the bioaccumulation of c-PCBs and their immunotoxic effects. These findings suggest that coplanar congeners should be included in the list of congeners recommended to be analyzed for biological impact-oriented marine monitoring programmes. |
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