LACK OF INHIBITORY EFFECTS OF THE JU-MYO PROTEIN ON DEVELOPMENT OF GLUTATHIONE S-TRANSFERASE PLACENTAL FORM-POSITIVE FOCI IN THE MALE F344 RAT LIVER
1999
The effects of the 77 kDa Ju-myo protein, isolated from Drosophila melanogaster, on the development of glutathione S-transferase placental form (GST-P) positive foci in the male F344 rat liver were evaluated using a medium-term bioassay system. No modifying potential was evident in terms of the numbers or areas of GSTP positive foci. Ju-myo protein did not exert any influence on cell proliferation, as reflected by ornithine decarboxylase (ODC) or spermidine/spermine N1-acetyltransferase (SAT) activity and BrdU labeling. These results demonstrated that Ju-myo protein is unlikely to have inhibitory or promoting effects on rat liver carcinogenesis.
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