Toxicology in vitro : an international journal published in association with BIBRA, 16(3), 235-243 (2002-05-22)
7H-Dibenzo[c,g]carbazole (DBC) is a model N-heterocyclic aromatic compound (NHA) which is both a hepatotoxin and hepatocarcinogen in rodents. The focus of this investigation was to determine whether human liver cell lines display differential sensitivities to DBC-induced toxicity. Treatment of cell
Carcinogenic N-heterocyclic aromatic hydrocarbons are formed during the incomplete combustion of fossil fuels as well as cigarette smoke. N-Methyldibenzo[c,g]carbazole (NMeDBC) and 7H-dibenzo[c,g]carbazole (DBC) are members of this group. DBC induces mouse skin and liver tumors, whereas NMeDBC induces only mouse
Differences between tissues in the expression of drug-metabolizing enzymes may substantially contribute to tissue-specificity of chemical carcinogens. To verify this hypothesis, the spontaneously immortalized human keratinocytes HaCaT were used, in order to evaluate the genotoxic potential of 7H-dibenzo[c,g]carbazole (DBC), a
The topical administration of 7H-dibenzo[c,g]carbazole (7H-DBC) at very low but repeated doses causes genotoxic effects such as DNA adduct formation and produces hepatocellular apoptosis in mouse liver. The purpose of this work was to investigate the alterations in gene expression
The time-course and dose dependent formation of DNA adducts in juvenile northern pike (Esox lucius) following a single exposure to a mixture of benzo[a]pyrene (BaP), benzo[k]fluoranthene (BkF) and 7H-dibenzo[c,g]carbazole (DBC) were investigated by use of the (32)P-postlabelling assay. A complex
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