mezerein and palytoxin

mezerein has been researched along with palytoxin* in 1 studies

Other Studies

1 other study(ies) available for mezerein and palytoxin

Article	Year
Effects of tumor promoters (mezerein, teleocidin and palytoxin) on growth hormone secretion from rat anterior pituitary cells cultured in monolayer. Life sciences, 1987, Aug-10, Volume: 41, Issue:6 The effects of compounds with tumor promoting activity (mezerein, teleocidin and palytoxin) on rat growth hormone (rGH) release was compared to that of TPA (12-O-tetradecanoyl phorbol-13-acetate). Mezerein and teleocidin both of which are activators of protein kinase C (TPA type tumor promoter), elicited rGH release about 3.5 to 4 fold above control values. The ED 50 was 16 nM for mezerein, 1.1 nM for teleocidin and 1.5 nM for TPA. In contrast to mezerein or teleocidin, a non-TPA type tumor promoter (palytoxin) which does not activate protein kinase C failed to stimulate rGH release. These observations suggest that the activation of protein kinase C is essential in the release of rGH induced by the tumor promoters. Topics: Acrylamides; Animals; Carcinogens; Cells, Cultured; Cnidarian Venoms; Diterpenes; Enzyme Activation; Growth Hormone; Lyngbya Toxins; Male; Pituitary Gland, Anterior; Protein Kinase C; Rats; Rats, Inbred Strains; Terpenes; Tetradecanoylphorbol Acetate	1987

Article

Year

Effects of tumor promoters (mezerein, teleocidin and palytoxin) on growth hormone secretion from rat anterior pituitary cells cultured in monolayer.

Life sciences, 1987, Aug-10, Volume: 41, Issue:6

The effects of compounds with tumor promoting activity (mezerein, teleocidin and palytoxin) on rat growth hormone (rGH) release was compared to that of TPA (12-O-tetradecanoyl phorbol-13-acetate). Mezerein and teleocidin both of which are activators of protein kinase C (TPA type tumor promoter), elicited rGH release about 3.5 to 4 fold above control values. The ED 50 was 16 nM for mezerein, 1.1 nM for teleocidin and 1.5 nM for TPA. In contrast to mezerein or teleocidin, a non-TPA type tumor promoter (palytoxin) which does not activate protein kinase C failed to stimulate rGH release. These observations suggest that the activation of protein kinase C is essential in the release of rGH induced by the tumor promoters.

Topics: Acrylamides; Animals; Carcinogens; Cells, Cultured; Cnidarian Venoms; Diterpenes; Enzyme Activation; Growth Hormone; Lyngbya Toxins; Male; Pituitary Gland, Anterior; Protein Kinase C; Rats; Rats, Inbred Strains; Terpenes; Tetradecanoylphorbol Acetate

1987