Potent tumor-initiating activity of the 3,4-dihydrodiol of 7,12-dimethylbenz(a)anthracene in mouse skin.

نویسندگان

  • T J Slaga
  • G L Gleason
  • J DiGiovanni
  • K B Sukumaran
  • R G Harvey
چکیده

The abilities of the racemic trans-3,4-, 5,6-, and 8,9-dihydrodiols of 7,12-dimethylbenz(a)anthracene to initiate skin tumors in mice were determined by using a two-stage system of tumorigenesis. The 7,12-dimethylbenz(a)anthracene trans-3,4-dihydrodiol was found to be much more active as a tumor initiator than the parent hydrocarbon. The 7,12-dimethylbenz(a)anthracene trans-5,6- and 8,9-dihydrodiols were essentially inactive as skin tumor initiators. Our results suggest that the 3,4-dihydrodiol of 7,12-dimethylbenz(a)anthracene is a proximal carcinogen and that the "bay region" diol-epoxide may be the ultimate carcinogenic form of DMBA.

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عنوان ژورنال:
  • Cancer research

دوره 39 6 Pt 1  شماره 

صفحات  -

تاریخ انتشار 1979