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Cultures of a human mammary carcinoma cell line (MCF-7) were exposed to the soluble organic fraction of diesel particle emissions, benzo[a]pyrene (B[a]P) and 5-methylchrysene (5-MeCHR) to study time- and dose-related PAH-DNA binding. The concentrations of 14 PAHs in three extracts
An SV40-based pS189 shuttle vector, which contained a supF target gene and was replicated in human cells (Ad293), was used to determine the mutational specificity of anti 5-methylchrysene 1,2-dihydrodiol 3,4-epoxide, the active metabolite of the environmentally prevalent carcinogen 5-methylchrysene. The
This study was undertaken to evaluate the carcinogenic potential of 5-methylchrysene (5-MeC) in strain A/J mouse lung and to correlate the 5-MeC-DNA adduct profile in lung tissue with the mutation spectrum in the K-ras gene of lung tumors. Strain A/J
Products of reaction of the racemic anti bay region 1,2-dihydrodiol-3,4-epoxide of 5-methylchrysene with DNA were identified by comparison with the products formed in reactions with individual nucleotides. The latter products, i.e. two deoxyguanosine adducts and four deoxyadenosine adducts, were characterized
Polycyclic aromatic hydrocarbons (PAH) are an important group of carcinogens that are likely to be involved as one of the causes of lung cancer in smokers and occupationally exposed individuals. Previous studies have shown that benzyl isothiocyanate (BITC), administered by
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