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In vitro immunotoxicity of environmentally representative antibiotics to the freshwater mussel Elliptio complanata

Gust, Marion; Gélinas, Malorie; Fortier, Marlène; Fournier, Michel et Gagné, François (2012). In vitro immunotoxicity of environmentally representative antibiotics to the freshwater mussel Elliptio complanata Environmental Pollution , vol. 169 . pp. 50-58. DOI: 10.1016/j.envpol.2012.05.020.

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Résumé


The separate and combined in vitro toxic effects of antibiotics (ciprofloxacin, erythromycin, novobiocin, oxytetracycline, sulfamethazole and trimethoprim) commonly found in urban wastewater effluents were assessed on the immune parameters of Elliptio complanata at environmentally relevant concentrations. The observed responses were then compared to those produced by the physicochemical-treated wastewater effluent of a major city before and after the removal of microorganisms. Most of the selected antibiotics, separately and as mixture, induced changes in immune responses. The removal of microorganisms and fine particles from the effluent increased or decreased the resulting immunotoxic effects, depending of the observed parameter. The immunotoxic effects of erythromycin, sulfamethoxazole and trimethoprim were closely associated to the antibiotic mixture and the filtered effluent. In conclusion, the data revealed that the removal of fine particles and microorganisms from municipal effluents can alter the toxic nature of the effluent that is closely associated with the cumulative effects of antibiotics. Environmentally relevant concentration of antibiotics and filtered urban effluent similarly modulate the in vitro immune response of mussels' hemocytes.

Type de document: Article
Mots-clés libres: Antibiotics; Municipal effluents; Immunotoxicity; Hemocytes; Mussels
Centre: Centre INRS-Institut Armand Frappier
Date de dépôt: 08 mars 2024 14:49
Dernière modification: 08 mars 2024 14:49
URI: https://espace.inrs.ca/id/eprint/14034

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