rat embryo fibroblast cell line 6 was transfected with plasmid pt24 , which contains the activated human bladder c-ha-ras oncogene , and the cells were grown continuously in the absence or presence of the tumor promoters 12-o-tetradecanoyl phorbol-13-acetate ( tpa ) or teleocidin .
C0016030
fibroblast
C0007634
cells