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
Environmental and molecular mutagenesis, 44(5), 448-458 (2004-11-10)
The cytochrome P4501A subfamily (CYP1A) is involved in the metabolic activation of 7H-dibenzo[c,g]carbazole (DBC) and its tissue- and organ-specific derivatives, N-methyldibenzo[c,g]carbazole (MeDBC)and 5,9-dimethyldibenzo[c,g]carbazole (diMeDBC). In this study, we have evaluated the relationship between the tissue specificity and (32)P-postlabeled adduct patterns
7H-dibenzo[c,g]carbazole (DBC) is a potent liver and skin carcinogen, while its synthetic methyl derivative N-methyldibenzo[c,g]carbazole (MeDBC) is tissue specific sarcomagen. It is supposed that sarcomagenic activity of DBC depends on biotransformation at ring-carbon atoms, as with PAH, whereas the heterocyclic
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
Studies of the impact of phase 1 enzyme polymorphisms on genetic damage have yielded mixed results. We studied how genetic damage would be altered when specific genes were ablated under low dose conditions. Knockouts (KO) were generated from c57bl6/J mice
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.