Abstract
1. Histamine release from rat peritoneal mast cells induced by polyethylenimine (mol. wt = 600) was inhibited by phorbol 12-myristate 13-acetate (PMA) and phorbol 12,13-dibutyrate (PDBu), but not by 4 alpha-phorbol 12,13-didecanoate (4 alpha-PDD). 2. Histamine release induced by polyallylamine (mol. wt = 10,000) was enhanced by PMA and PDBu, but not by 4 alpha-PDD. 3. K-252a reduced the inhibitory effect of PMA on histamine release induced by polyethylenimine and its enhancing effect on histamine release by polyallylamine.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Histamine Release / drug effects*
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In Vitro Techniques
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Male
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Mast Cells / drug effects
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Mast Cells / enzymology
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Mast Cells / metabolism*
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Molecular Weight
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Phorbol 12,13-Dibutyrate / pharmacology
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Phorbol Esters / pharmacology*
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Polyamines / pharmacology*
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Polyethyleneimine / pharmacology*
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Polyethylenes / pharmacology*
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Protein Kinase C / metabolism
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Rats
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Rats, Inbred Strains
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Tetradecanoylphorbol Acetate / pharmacology
Substances
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Phorbol Esters
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Polyamines
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Polyethylenes
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phorbol-12,13-didecanoate
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polyallylamine
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Phorbol 12,13-Dibutyrate
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Polyethyleneimine
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Protein Kinase C
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Tetradecanoylphorbol Acetate