Reports

Type C RNA Tumor Viruses as Determinants of Chemical Carcinogenesis: Effects of Sequence of Treatment

Science  15 Sep 1972:
Vol. 177, Issue 4053, pp. 1003-1004
DOI: 10.1126/science.177.4053.1003

Abstract

Fischer rat embryo cells were treated with 3-methylcholanthrene before or after inoculation with Rauscher murine leukemia virus. Transformation was not observed in untreated control cultures, cultures given virus or 3-methyl-cholanthrene alone, or cultures treated first with 3-methylcholanthrene followed by inoculation with the virus after removal of the chemical. Transformation was dependent upon the presence of Rauscher murine leukemia virus at the time of chemical treatment.

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