title: An evaluation of three pesticides: piritione, supercypermethrin and metolachlor in transformation bioassays of BHK21 and hamster embryo cells.
abstract: In a study of potential carcinogenicity of pesticides, Piritione, metolachlor (in the form of Dual and VUCHT 524) and Supercypermethrin (in the form of Supercypermethrin EC and Supercypermethrin TP) were assayed for induction of anchorage independent growth of BHK21 cells and morphological transformation of Syrian hamster embryo cells. The activity of these substances in both transformation assays was compared to the activity of the direct-acting ultimate carcinogen N-methyl-N-nitrosourea. In comparison to the very strong transforming activity of N-methyl-N-nitrosourea all pesticides tested with or without S9 fraction manifested a very weak, weak, medium or strong effect. The ability to induce anchorage independent growth was graded as follows: Dual < Supercypermethrin EC < Supercypermethrin TP < or = Piritione < VUCHT 524. Results of Syrian hamster embryo cell transformation assay were very similar to the BKH21 transformation assay. VUCHT 524 strongly induced transformation whereas Dual was inactive. Piritione and Supecypermethrin EC and Supercypermethrin TP elicited a slight but significant positive response.
authors.affiliation: Department of Mutagenesis and Chemical Carcinogenesis Cancer Research Institute, Slovak Academy of Sciences, Bratislava.
authors.forename: D
authors.initials: D
authors.lastname: Slamenová
authors.forename: M
authors.initials: M
authors.lastname: Dusinská
authors.forename: A
authors.initials: A
authors.lastname: Gábelová
authors.forename: T
authors.initials: T
authors.lastname: Bohusová
authors.forename: C
authors.initials: C
authors.lastname: Oravec
mesh_terms: D000081:Acetamides / Q000633:toxicity*; D000818:Animals; D015197:Carcinogenicity Tests; D002455:Cell Division / Q000187:drug effects; D002460:Cell Line; D002470:Cell Survival; D002471:Cell Transformation, Neoplastic / Q000187:drug effects*; D002478:Cells, Cultured; D006224:Cricetinae; D004622:Embryo, Mammalian; D006540:Herbicides / Q000633:toxicity*; D007306:Insecticides / Q000633:toxicity*; D008647:Mesocricetus; D009946:Organothiophosphorus Compounds / Q000633:toxicity*; D011722:Pyrethrins / Q000633:toxicity*; D011743:Pyrimidines / Q000633:toxicity*
chemical_list: D000081:Acetamides; D006540:Herbicides; D007306:Insecticides; D009946:Organothiophosphorus Compounds; D011722:Pyrethrins; D011743:Pyrimidines; C017160:cypermethrin; C014153:pirimiphos methyl; C051786:metolachlor