PMID- 15036755 OWN - NLM STAT- MEDLINE DCOM- 20040406 LR - 20161124 IS - 0300-483X (Print) IS - 0300-483X (Linking) VI - 196 IP - 1-2 DP - 2004 Mar 1 TI - Effects of human pharmaceuticals on cytotoxicity, EROD activity and ROS production in fish hepatocytes. PG - 41-55 AB - Pharmaceuticals are found in the aquatic environment but their potential effects on non-target species like fish remain unknown. This in vitro study is a first approach in the toxicity assessment of human drugs on fish. Nine pharmaceuticals were tested on two fish hepatocyte models: primary cultures of rainbow trout hepatocytes (PRTH) and PLHC-1 fish cell line. Cell viability, interaction with cytochrome P450 1A (CYP1A) enzyme and oxidative stress were assessed by using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrasodium bromide tetrazolium (MTT), 7-ethoxyresorufin-o-deethylase (EROD) and dichlorofluorescein (DCFH-DA) assays, respectively. The tested drugs were clofibrate (CF), fenofibrate (FF), carbamazepine (CBZ), fluoxetine (FX), diclofenac (DiCF), propranolol (POH), sulfamethoxazole (SFX), amoxicillin (AMX) and gadolinium chloride (GdCl(3)). All substances were cytotoxic, except AMX at concentration up to 500 microM. The calculated MTT EC(50) values ranged from 2 microM (CF) to 651 microM (CBZ) in PLHC-1, and from 53 microM (FF) to 962 microM (GdCl(3)) in PRTH. CF, FF, and FX were the most cytotoxic drugs and induced oxidative stress before being cytotoxic. Compared to hepatocytes from human and dog, fish hepatocytes seemed to be more susceptible to the peroxisome proliferators (PPs) CF and FF. In PLHC-1 cells none of the tested drugs induced the EROD activity whereas POH appeared as a weak EROD inducer in PRTH. Moreover, in PRTH, SFX, DiCF, CBZ and to a lesser extend, FF and CF inhibited the basal EROD activity at clearly sublethal concentrations which may be of concern at the biological and chemical levels in a multipollution context. FAU - Laville, N AU - Laville N AD - Unite d'Evaluation des Risques Ecotoxicologiques, INERIS, BP 2, Parc Technologique Alata, DRC/Ecotoxicology group, F60550 Verneuil-en-Halatte, France. nathalie.laville-etudiant@ineris.fr FAU - Ait-Aissa, S AU - Ait-Aissa S FAU - Gomez, E AU - Gomez E FAU - Casellas, C AU - Casellas C FAU - Porcher, J M AU - Porcher JM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Ireland TA - Toxicology JT - Toxicology JID - 0361055 RN - 0 (Pharmaceutical Preparations) RN - 0 (Reactive Oxygen Species) RN - 0 (Tetrazolium Salts) RN - 0 (Thiazoles) RN - 0 (Water Pollutants, Chemical) RN - EC 1.14.14.1 (Cytochrome P-450 CYP1A1) RN - EUY85H477I (thiazolyl blue) SB - IM MH - Animals MH - Cell Line MH - Cell Separation MH - Cell Survival/drug effects MH - Cells, Cultured MH - Cytochrome P-450 CYP1A1/*metabolism MH - Hepatocytes/*drug effects/enzymology MH - Humans MH - Oncorhynchus mykiss/*metabolism MH - *Pharmaceutical Preparations MH - Reactive Oxygen Species/*metabolism MH - Tetrazolium Salts MH - Thiazoles MH - Water Pollutants, Chemical/*toxicity EDAT- 2004/03/24 05:00 MHDA- 2004/04/07 05:00 CRDT- 2004/03/24 05:00 PHST- 2003/07/18 00:00 [received] PHST- 2003/11/03 00:00 [revised] PHST- 2003/11/03 00:00 [accepted] PHST- 2004/03/24 05:00 [pubmed] PHST- 2004/04/07 05:00 [medline] PHST- 2004/03/24 05:00 [entrez] AID - S0300483X03005018 [pii] AID - 10.1016/j.tox.2003.11.002 [doi] PST - ppublish SO - Toxicology. 2004 Mar 1;196(1-2):41-55. doi: 10.1016/j.tox.2003.11.002.