FN Archimer Export Format PT J TI Responses of the European flounder (Platichthys flesus) to a mixture of PAHs and PCBs in experimental conditions BT AF DUPUY, Celie GALLAND, Claire DEVAUX, Alain BONY, Sylvie LOIZEAU, Veronique DANION, Morgane PICHEREAU, Vianney FOURNIER, Michel LAROCHE, Jean AS 1:1,2;2:1;3:3,4;4:3,4;5:5;6:6;7:1;8:2;9:1; FF 1:;2:;3:;4:;5:PDG-RBE-BE-LBCO;6:;7:;8:;9:; C1 Univ Bretagne Occidentale, Univ Europeenne Bretagne, Inst Univ Europeen Mer, UMR CNRS UBO IRD Ifremer 6523,Lab Sci Environm Ma, F-29280 Plouzane, France. Inst Natl Rech Sci, Inst Armand Frappier, Laval, PQ H7V 1B7, Canada. Univ Lyon, UMR LEHNA CNRS 5023, F-69100 Villeurbanne, France. INRA, USC IGH 1369, ENTPE, F-69518 Vaulx En Velin, France. IFREMER, Ctr Brest, Unite Biogeochim & Ecotoxicol, F-29280 Plouzane, France. ANSES, Agence Natl Securite Ssanit Alimentat Environm &, Lab Ploufragan Plouzane, F-29280 Plouzane, France. C2 UBO, FRANCE INRS IAF, CANADA UNIV LYON, FRANCE INRA, FRANCE IFREMER, FRANCE ANSES, FRANCE SI BREST SE ANSES PDG-RBE-BE-LBCO UBOLEMAR UBO IN WOS Ifremer jusqu'en 2018 copubli-france copubli-p187 copubli-univ-france copubli-int-hors-europe IF 2.828 TC 13 UR https://archimer.ifremer.fr/doc/00188/29914/28374.pdf LA English DT Article DE ;Mixture of contaminants;Fish;Biomarker;Immunotoxicity;Detoxification process;DNA damage;PAHs;PCBs AB A multibiomarker approach was developed to evaluate the juvenile European flounder responses to a complex mixture of 9 polycyclic aromatic hydrocarbons (PAHs) and 12 polychlorinated biphenyls (PCBs). Exposure was performed through contaminated food pellets displaying: (1) PAH and PCB levels similar to those detected in the heavily polluted Seine estuary, respectively in sediments and in flatfish and (2) ten times these concentrations. Several biomarkers of the immune system (e.g., lysozyme concentration and gene expression of complement component C3 and TNF-receptor), DNA damage (e.g., Comet assay), energetic metabolism (e.g., activity of cytochrome C oxidase), detoxification process (e.g., cytochrome P450 1A1 expression level: CYP1A1; betaine homocysteine methyl transferase expression level: BHMT) were investigated after 14 and 29 days of contamination, followed by a 14-days recovery period. After 29 days of contamination, the detoxification activity (CYP1A1 expression level) was positively correlated with DNA damages; the increase of the BHMT expression level could also be related to the detoxification process. Furthermore, after the recovery period, some biomarkers were still upregulated (i.e., CYP1A1 and BHMT expression levels). The immune system was significantly modulated by the chemical stress at the two concentration levels, and the lysozyme appeared to be the most sensitive marker of the mixture impact. PY 2014 PD DEC SO Environmental Science And Pollution Research SN 0944-1344 PU Springer Heidelberg VL 21 IS 24 UT 000345314500010 BP 13789 EP 13803 DI 10.1007/s11356-014-2563-y ID 29914 ER EF