Abstract
The widely used plasticizer and rodent carcinogen di-(2-ethylhexyl) phthalate (DEHP) was examined for activity in the C3H 10T 1 2 murine fibroblast cell transformation system. Treatment with DEHP or its metabolite, mono-(2-ethylhexyl) phthalate, did not produce oncogenic transformation, initiate the process of transformation in cultures treated with a tumour promoter or promote the process of transformation in cultures pretreated with a chemical carcinogen. These findings are consistent with the suggestion that the carcinogenicity of DEHP is mediated by an indirect mechanism and not by covalent interaction of DEHP with DNA.
Published Version
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