title: [Antitumor effect of synthetic cord factor analogue, 6, 6'-Di-O-decanoyl-alpha, alpha-trehalose].
abstract: The antitumor effect of a new synthetic cord factor analogue, 6, 6'-Di-O-dacanoyl-alpha, alpha-trehalose (SS 554), was examined in vivo and in vitro. Remarkable life prolongation effects were observed after the intraperitoneal administration of SS554 at a dosage of 150 mg/kg in mice implanted with Ehrlich ascitic tumor cells. Using in vitro tests, the growth of various tumor cell lines i.e. Meth-A, EL-4, RL male-1, X5563, Raji and Jurkat were inhibited by SS554 at a 25 mcg/ml concentration. The mechanism of the direct antitumor activity of SS554 was studied using these tumor cell lines and bacterial cells. After treatment with SS554 at a 50 mcg/ml dose for 30 minutes, tumor cells and bacterial protoplasts but not intact bacterial cells were destroyed, indicating that SS554 causes the lysis of the membranes of these cells.
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology*; D002286:Carcinoma, Ehrlich Tumor / Q000188:drug therapy / Q000473:pathology*; D002455:Cell Division / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D002478:Cells, Cultured; D006801:Humans; D008297:Male; D051379:Mice; D009368:Neoplasm Transplantation; D014199:Trehalose / Q000031:analogs & derivatives / Q000494:pharmacology
chemical_list: D000970:Antineoplastic Agents; C042130:SS 554; D014199:Trehalose