the colony-forming ability of rat 3y1 fibroblasts transformed by adenovirus type 12 ( ad12 ) was drastically reduced when the cells were cultivated for 18 h in medium augmented with 300 micrograms/ml of liposomes composed of either phosphatidylcholine ( pc ) or phosphatidylinositol .
C0016030
fibroblasts
C0007634
cells