| Abstract: | Glycolipid composition of purified plasma membranes from rat ascites hepatomas, two island-forming cell-lines and two cell-lines of the free-type, and normal rat liver were compared. Ceramide monohexoside (CMH), ceramide dihexoside (CDH), and hematoside (GM3) were found in normal rat liver cell membranes. The island-type hepatomas contained ceramide trihexoside (CTh) and globoside besides CMH, CDH, and GM3. The free-type of hepatomas were characterized by the presence of asialo-type gangliosides but not GM3. The free-type of hepatomas were characterized by the presence of asialo-type gangliosides but not GM3. Blood group H active fucolipid was a major glycolipid in the free-type of ascites hepatoma cell (AH 7974 F). The increase of glycolipid content in cell membranes seemed to be accompanied with a decrease of cell adhesiveness. |
