8 rezultatus
Application of the alkane n-dodecane to the dorsal skin of 6-8 week old female SENCAR mice initiated with 10 nmol dimethylbenz[a]anthracene led to papilloma formation in the majority of treated animals. Compared to the potent phorbol diester 12-O-tetradecanoylphorbol-13-acetate (TPA), n-dodecane was
Topical application of tumor-promoting agents to the dorsal skin of female SENCAR mice on a twice-weekly basis resulted in a reduction in density per unit area of bone marrow-derived Thy-1+ dendritic cells. Activity was observed for well-established tumor-promoting doses of promoting agents of
n-Dodecane, a previously little-studied tumor-promoting agent and mezerein, a diterpenoid natural product, have both been reported to have activity primarily in Stage II of two stage tumor promotion in SENCAR mouse skin. Histological changes in this tissue were therefore investigated in response to
Responses of various cells of the epidermis and dermis to topically applied agents have been implicated in the mechanism of multistage mouse tumorigenesis. These responses have been discussed almost entirely in the context of a single promoter treatment, although tumor expression is dependent on
Topical application of certain petroleum middle distillates (PMD) to mice produces skin tumors after long latency, and initiation/promotion protocols indicate that this effect is associated with their tumor promoting activity. Since induction of sustained, potentiated epidermal hyperplasia is
The alpha-anomer form of sulfoquinovosyl-monoacylglycerol with a saturated C18 fatty acid (alpha-SQMG-C(18:0)) is a natural sulfolipid that is a clinically promising antitumor agent. It forms vesicles, micelles or an emulsion in water, depending on several physicochemical conditions. The type of
Up-regulation of inducible form of nitric oxide (NO)-synthase and increased production of NO has been shown to occur in many pathological conditions associated with inflammatory responses. In this study we show that topical application of skin tumor promoters, which are known to produce inflammatory
A novel bolaamphiphile surfactant N,N'-(dodecane-1, 12-diyl) bis (2,6-diaminohexanamide) (DADL) was designed and synthesized using l-lysine and 1,12-diaminododecane as the hydrophilic and hydrophobic part, respectively. After separation and purification, the structure of the synthetic bolaamphiphile