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

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The covalent binding of 1,1,2,2-tetrachloroethane to macromolecules of rat and mouse organs.

The in vivo interaction of the hepatocarcinogen 1,1,2,2-tetrachloroethane (1,1,2,2-TTCE) with DNA, RNA, and proteins of male Wistar rats and BALB/c mice was measured 22 hr after i.p. injection. Covalent binding index (CBI) to liver DNA was about 500 and was comparable to those of carcinogens classified as moderate initiators. It was higher than those of other chloroethanes, even than that of 1,2-dichloroethane (1,2-DCE), a symmetrically substituted haloethane whose genotoxicity has been widely demonstrated. In in vitro cell-free systems, 1,1,2,2-tetrachloroethane was bioactivated by mixed-function oxidase(s) and glutathione-S-transferase(s) (GSH-T) from microsomal and cytosolic fractions of rat and mouse liver and, to a lesser extent, of mouse lung. The in vitro activation led to formation of reactive species capable of binding to exogenous DNA and to the subcellular constituents of enzymatic fractions. These data, along with previous literature reports, provide sufficient evidence of 1,1,2,2-TTCE genotoxicity.[1]

References

  1. The covalent binding of 1,1,2,2-tetrachloroethane to macromolecules of rat and mouse organs. Colacci, A., Grilli, S., Lattanzi, G., Prodi, G., Paola Turina, M., Cantelli Forti, G., Mazzullo, M. Teratog., Carcinog. Mutagen. (1987) [Pubmed]
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