RRC ID |
19282
|
著者 |
Nakamura T, Kodama N, Arai Y, Kumamoto T, Higuchi Y, Chaichantipyuth C, Ishikawa T, Ueno K, Yano S.
|
タイトル |
Inhibitory effect of oxycoumarins isolated from the Thai medicinal plant Clausena guillauminii on the inflammation mediators, iNOS, TNF-alpha, and COX-2 expression in mouse macrophage RAW 264.7.
|
ジャーナル |
J Nat Med
|
Abstract |
In the present study, we investigated the inhibitory effect of the known oxycoumarins poncitrin (3), osthol (4), and xanthoxyletin (5), newly isolated from Clausena guillauminii (Rutaceae), together with the known carbazoles heptaphylline (1) and 7-methoxyheptaphylline (2) on inducible-nitric oxide synthase (iNOS) expression induced by lipopolysaccharide (LPS) and the NO generation in RAW 264.7 mouse macrophages. Isolation of active oxycoumarins was guided by Western blot analysis of iNOS protein expression. These oxycoumarins showed an inhibitory effect on iNOS protein expression at 10 microM. Further examination of the inhibitory effects of these compounds on inflammation mediators revealed that the synthesis of nitric oxide (NO) and the protein expression of tumor necrosis factor-alpha (TNF-alpha) and cyclooxygenase-2 (COX-2) were inhibited by 5. It was expected that these compounds show anti-inflammatory activities.
|
巻・号 |
63(1)
|
ページ |
21-7
|
公開日 |
2009-1-1
|
DOI |
10.1007/s11418-008-0277-5
|
PMID |
18636311
|
MeSH |
Animals
Blotting, Western
Cell Line
Clausena / chemistry*
Coumarins / chemistry
Coumarins / isolation & purification
Coumarins / pharmacology*
Cyclooxygenase 2 / metabolism
Inflammation Mediators / metabolism*
Macrophages / cytology
Macrophages / drug effects*
Macrophages / metabolism
Mice
Nitric Oxide / metabolism
Nitric Oxide Synthase Type II / metabolism
Plants, Medicinal / chemistry*
Tumor Necrosis Factor-alpha / metabolism
|
IF |
2.055
|
引用数 |
59
|
WOS 分野
|
CHEMISTRY, MEDICINAL
PHARMACOLOGY & PHARMACY
|
リソース情報 |
ヒト・動物細胞 |
RAW 264(RCB0535) |