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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Diminished genotoxicity of mitomycin C and farmorubicin included in polybutylcyanoacrylate nanoparticles.

The genotoxic effects of mitomycin C (MMC) and farmorubicin (FR) in a free form and included in polybutylcyanoacrylate nanoparticles (PBCN) were studied employing the Salmonella/microsome mutagenicity assay and the micronucleus test in mouse bone marrow as well as in mouse fetal liver. The data obtained clearly indicated that MMC (0.25-2.00 micrograms/plate) was a strong mutagen in S. typhimurium TA102, while the same concentrations of this compound in PBCN were ineffective in inducing his+ revertant mutations in bacterial cells. A similar total suppression of mutagenic activity of FR (1.0-20.0 micrograms/plate) was registered in S. typhimurium TA98 when the drug was included in PBCN. Furthermore, the incorporation of MMC (2.0 or 4.0 mg/kg, i.p.) into PBCN strongly diminished or even abolished its clastogenic activity in the bone marrow of virgin and pregnant mice as well as in mouse fetal liver, respectively. In addition, a lack of genotoxic effect of PBCN only was also established. The toxic activity of MMC in mouse bone marrow was significantly reduced or completely abolished after its inclusion in PBCN. A conclusion might be drawn that the genotoxic activity of some antitumor drugs might be markedly diminished or even abolished after their incorporation in PBCN.[1]


  1. Diminished genotoxicity of mitomycin C and farmorubicin included in polybutylcyanoacrylate nanoparticles. Blagoeva, P.M., Balansky, R.M., Mircheva, T.J., Simeonova, M.I. Mutat. Res. (1992) [Pubmed]
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