Abstract
FG-9307, a cell line derived from the gill of flounder Paralichthys olivaceus, was used to determine the acute cytotoxic effects of the organophosphorus insecticide methylparathion. The cytotoxic effects of methylparathion were initially measured by three endpoint systems: neutral red (NR) uptake assay, tetrazolium (MTT) assay, and cell protein assay. Results indicated that concentrations of methylparathion ranging from 5 μg/ml to 60 μg/ml were toxic, and there was no significant difference in cytotoxic effects between the three test systems. Thus, the FG-9307 cell line is one of several choices for evaluating the acute toxicities of organophosphorus insecticides such as methylparathion. The ultrastructure of the cells was also studied. It was found that the ultrastructure of the cells was markedly altered by methylparathion, as evidenced by dilation of mitochondria, breakdown of rough endoplasmic reticulum, nuclear necrosis, and production of numerous lysosomes and lipid vacuoles. This appears to be the first report that a marine fish cell line can be used for acute in vitro cytotoxicity evaluation of methylparathion.
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Li, H., Zhang, S. In vitro cytotoxicity of the organophosphorus insecticide methylparathion to FG-9307, the gill cell line of flounder (Paralichthys olivaceus). Cell Biol Toxicol 18, 235–241 (2002). https://doi.org/10.1023/A:1016050911012
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DOI: https://doi.org/10.1023/A:1016050911012