addition of amphotericin b ( fungizone ) to the medium at a concentration of 0.2 micrograms/ml completely inhibited rat cell transformation by sr-rsv-d ( h ) , possibly by blocking virus penetration into the cells , whereas the drug showed no inhibitory effect on transformation of chick embryo fibroblast ( cef ) cells by the variant virus or on transformation of rat cells by the parental virus .
C0007634
cells
C0016030
fibroblast