Abstract:The effects of 7,12-dimethylbenz[a]anthracene (DMBA) on levels of four mammary epithelial cell macromolecules were investigated at various times between 1 and 14 days after Sprague-Dawley virgin female rats were fed the carcinogen. Whereas the level of nuclear protein remained relatively constant throughout this period, comparison with normal controls revealed that significant reductions in nuclear RNA and cytosol protein levels occurred in cells from DMBA-treated animals 24 hours after carcinogen treatment; l… Show more
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