7 rezultatus
Tumor necrosis factor-alpha (TNF-alpha) is a proinflammatory cytokine playing a part in various pathological states. Non-toxic inhibitors of TNF-alpha release are thought to be promising agents for cancer prevention. We found that the acetone fraction of the tobacco leaf surface lipid containing
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
The antitumor effect of a synthetic cord factor (6, 6'-Di-O-decanoyl-alpha, alpha-trehalose) (SS 554) on the growth of Meth-A fibrosarcoma in BALB/c mice was examined. With regard to administration routes, only intratumoral (i.t.) injection showed a curative effect; subcutaneous (s.c.), per oral
The antitumor effect on Meth-A fibrosarcoma in BALB/c mice of a synthetic cord factor, 6,6'-di-O-decanoyl-alpha,alpha-trehalose (designated as SS554), was examined. Only intratumoral injection had a curative effect; subcutaneous, per oral, or intravenous routes had no such effect. The co-presence of
A transplantable hepatocarcinoma of strain 2 guinea pigs was used as an experimental model for immunotherapy of cancer. 6,6'-Dideoxy-6,6'-bis-mycoloylamino-alpha,alpha- trehalose (TDNM) was found to be more effective in producing regression of transplantable line-10 tumours than
Trehalose 6,6'-dicorynomycolate (TDCM) was first characterized in 1963 as a cell surface glycolipid of Corynebacterium spp. by Ioneda and co-workers. TDCM shows potent anti-tumor activity due to its immunoadjuvant properties. Furthermore, the toxicity of TDCM in mice is much weaker than the related
The ability of cord factor (trehalose-6, 6'-dimycolate) and a range of shorter carbon chain fatty acid trehalose diesters to suppress growth of an ascitic rat hepatoma has been examined and compared with that of whole, living BCG organisms. Aqueous suspensions of BCG, and cord factor in 0.4% arachis