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Lansiumamide B and SB-204900 isolated from Clausena lansium inhibit histamine and TNF-α release from RBL-2H3 cells.
MedLine Citation:
PMID:  23324895     Owner:  NLM     Status:  Publisher    
AIMS AND OBJECTIVE: Mast cells play a central role in allergic and chronic inflammation. Extracts from Clausena lansium (Lour.) Skeels (Rutaceae) possess many pharmacological effects including anti-inflammatory, anti-oxidant, anti-cancer, and anti-trichomonal activities. In addition, the leaves and fruit are used in Chinese folk medicine. We have isolated and identified four known cinnamamides from this plant: lansiumamide C, lansamide I, lansiumamide B, and SB-204900. However, the biological activities of these compounds are not yet understood. The purpose of this paper is to clarify the pharmacological effects of these compounds on mast cells. METHODS: We measured inflammatory molecules in A23187-stimulated rat basophilic leukemia cells (RBL-2H3) treated with these compounds using HPLC, ELISA, and immunoblotting methods. In addition, some signaling molecules were investigated by immunoblotting. RESULTS: Lansamide I, lansiumamide B, and SB-204900 significantly decreased histamine release. Furthermore, lansiumamide B- and SB-204900-treated cells also reduced the protein and/or mRNA levels of TNF-α. SB-204900 markedly suppressed the phosphorylation of p38 MAPK. CONCLUSION: Our findings suggest that lansiumamide B and SB-204900 attenuate mast-cell-induced inflammation.
Takuya Matsui; Chihiro Ito; Hiroshi Furukawa; Tadashi Okada; Masataka Itoigawa
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-17
Journal Detail:
Title:  Inflammation research : official journal of the European Histamine Research Society ... [et al.]     Volume:  -     ISSN:  1420-908X     ISO Abbreviation:  Inflamm. Res.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9508160     Medline TA:  Inflamm Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Faculty of Pharmacy, Meijo University, Tempaku-ku, Nagoya, Aichi, Japan,
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