the possibility of selective killing of transformed cells in a mixed population of untransformed and transformed cells was examined using a cell culture system of rat 3y1 fibroblasts ( parental 3y1 cells , 3y1 cells transformed with either sv40 , polyoma virus , rous avian sarcoma virus , e1a gene of adenovirus type 12 , or h-v-ras oncogene ) .
C0016030
fibroblasts
C0007634
cells