A
sesquiterpene quinone, 5-Epi-smenospongine, promotes TNF-α production in LPS-stimulated RAW 264.7 Cells.
Mar Drugs 2007;
5:151-6. [PMID:
18463729 PMCID:
PMC2365696 DOI:
10.3390/md504151]
[Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2007] [Accepted: 10/29/2007] [Indexed: 11/16/2022] Open
Abstract
Eight sesquiterpene quinones: ilimaquinone (1), smenospongidine (3), smenospongiarine (5), smenospongine (7), and their corresponding 5-epimers 2, 4, 6, and 8, isolated from the Palauan marine sponge Hippospongia sp., were examined regarding their effects on TNF-α production in LPS-stimulated RAW 264.7 cells. 5-Epi-smenospongine (8) promoted the production of TNF-α to a level three times greater than the control at 10 micron, but compounds 1-7 did not show apparent activity. The results suggest that the cis-decaline ring and a primary amine in the benzoquinone ring are necessary for activity. This is the first study to report the modulation of TNF-α production by a sesquiterpene quinone.
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