Edward Bresnick

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Mammary epithelial regeneration implies the existence of cellular progenitors with retained replicative capacity, prolonged lifespan and developmental potency. Evidence exists that deltaN-p63 isoforms preserve these features by modulating p53 activity in basal epithelia. deltaN-p63 mRNA levels decline at the onset of differentiation suggesting that its(More)
This investigation studied the effect of topical application of apigenin on skin tumorigenesis initiated by 7,12-dimethylbenz(a)anthracene (DMBA) and promoted by 12-O-tetradecanoylphorbol-13-acetate (TPA) in SENCAR mice. Apigenin was a potent inhibitor of epidermal ornithine decarboxylase induction by TPA in a dose-dependent manner from 1 to 20 mumol. Two(More)
The topoisomerase I inhibitor SN38 arrests cell cycle progression primarily in S or G2 phases of the cell cycle in a p53-independent manner. The Chk1 inhibitor, 7-hydroxystaurosporine (UCN-01), overcomes both S and G2 arrest preferentially in cells mutated for p53, driving cells through a lethal mitosis and thereby enhancing cytotoxicity. The mechanism by(More)
Previous studies have implicated the reticuloendothelial cells of the liver in certain aspects of steroid metabolism. The similarity in the metabolism of steroids and polycyclic hydrocarbons suggested that the nonparenchymal cells possibly play a role in these areas. The present study presents evidence that at least one of the microsomal NADPH-requirig(More)
We assessed the anti-mutagenic and anti-promotion properties of two flavones, apigenin and robinetin, and of indole-3-carbinol, because these compounds have been reported in vegetables, the consumption of which has been associated with reduced rates of cancer. However, the active components of these foods and their effects on carcinogenesis have not been(More)
The effect of feeding mice diets high in beef tallow (high in saturated fat) or corn oil (high in polyunsaturated fat) on the production of lung metastases by the Lewis lung carcinoma and the BALB/c mammary tumor was determined. Diets were fed ad libitum, and the mice fed the high-fat (24.6%) diets consumed more calories and gained more weight than those(More)
Mammary epithelial regeneration implies the existence of cellular progenitors with retained replicative capacity, prolonged lifespan and developmental potency. Evidence exists that ΔN-p63 isoforms preserve these features by modulating p53 activity in basal epithelia. ΔN-p63 mRNA levels decline at the onset of differentiation suggesting that its(More)
The mechanisms for activation of procarcinogens and some of the factors that affect these reactions are considered. It is proposed that the nucleus of the colonic cell may actually be responsible for the formation of ultimate carcinogenic forms of exogenous procarcinogens. The contributions of the intestinal microbial flora to activation and detoxification(More)
Mammary cancer was induced in female Sprague-Dawley rats by a single injection of N-methyl-N-nitrosourea (MNU) and rats were randomized to control fat (5%) and high fat (24.6%) diets. In addition, dried cabbage (5 and 10%) and collards (5%) were included in the diets of some animals. No statistically significant differences were observed in food(More)