Forty-eight human intestinal tumors and twelve human gastric adenocarcinomas were analyzed for their ganglioside and phospholipid composition. In malignant intestinal tissues the total amount of ganglioside lipid-bound sialic acid (LBSA) was higher than that of histologically normal adjacent tissues. The same amount of LBSA was found in peritumoral and cancerous gastric tissue. In all peritumoral gastrointestinal tissues the most abundant gangliosides were GD1a, GD3, GD1b and GM1. GM3, GM2 and GT1b were present in small amounts. There was a similar ganglioside pattern in gastrointestinal tumor tissue except that GD3 was increased and GD1b and GD1a were decreased. Total phospholipids were higher in the intestinal than in peritumoral tissue. There was no difference in the content of total phospholipid between gastric cancers and peritumoral tissues. The major phospholipid components in both peritumoral and tumoral tissues were lecithin and phosphatidylethanolamine; in minor amounts phosphatidylinositol, sphingomyelin, phosphatidylserine and lysolecithin. The amount of sphingomyelin was slightly higher in tumoral tissue than in peritumoral tissue.
|Number of pages||12|
|Journal||Bulletin of Molecular Biology and Medicine|
|Publication status||Published - 1994|
ASJC Scopus subject areas
- Clinical Biochemistry