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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
18
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pubmed:dateCreated |
1988-10-11
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pubmed:abstractText |
Since glycyrrhetinic acid was proved to suppress tumor promoter effects, several oleanane-type triterpenes which were chemically derived from oleanolic acid and hederagenin were tested in vitro and in vivo against the action of tumor promoter, 12-O-tetradecanoylphorbol 13-acetate. By in vitro experiment monitoring with 12-O-tetradecanoylphorbol-13-acetate-induced stimulation of 32Pi incorporation into phospholipids and an in vivo test on skin tumor formation in mice initiated with 7,12-dimethylbenz[a]anthracene and promoted with 12-O-tetradecanoylphorbol-13-acetate, 18 beta-olean-12-ene-3 beta,28-diol (= erythrodiol), 18 beta-olean-12-ene-3 beta,23,28-triol, 18 alpha-olean-12-ene-3 beta,28-diol, and 18 alpha-olean-12-ene-3 beta,23,28-triol showed remarkable suppressive effects. Especially 18 alpha-oleanane derivatives having a CH2OH grouping converted from the COOH group initially allocated at C-17 were 100 times more effective than glycyrrhetinic acid both in vitro and in vivo.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0008-5472
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
48
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
5210-5
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:3409245-Animals,
pubmed-meshheading:3409245-Cells, Cultured,
pubmed-meshheading:3409245-Glycyrrhetinic Acid,
pubmed-meshheading:3409245-Mice,
pubmed-meshheading:3409245-Mice, Inbred C3H,
pubmed-meshheading:3409245-Skin Neoplasms,
pubmed-meshheading:3409245-Structure-Activity Relationship,
pubmed-meshheading:3409245-Tetradecanoylphorbol Acetate,
pubmed-meshheading:3409245-Triterpenes
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pubmed:year |
1988
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pubmed:articleTitle |
Inhibition of the tumor-promoting action of 12-O-tetradecanoylphorbol-13-acetate by some oleanane-type triterpenoid compounds.
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pubmed:affiliation |
Department of Biochemistry, Kyoto Prefectural University of Medicine, Japan.
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pubmed:publicationType |
Journal Article
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