Abstract
The two naphthopyrones 6-methoxycomaparvin (1) and 6-methoxycomaparvin 5-methyl ether (2) were isolated from a bioactive methanol-soluble extract of the Fijian echinoderm Comanthus parvicirrus. Their structures were assigned on the basis of spectroscopic methods. X-ray diffraction analysis was used to confirm the structure of 1. Both compounds were tested for their potential to inhibit the activation of the transcription factor NF-kappa B, which plays an important role in cancer development and inflammation, and the mechanism of action of the two compounds was investigated. Both naphthopyrones 1 and 2 completely inhibit TNF-alpha-induced NF-kappa B activation at a concentration of 300 mu M by inhibiting the enzymatic activity of the kinase IKK beta.
Original language | English |
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Pages (from-to) | 106-111 |
Number of pages | 6 |
Journal | Journal of Natural Products |
Volume | 71 |
Issue number | 1 |
Early online date | 19 Dec 2007 |
DOIs | |
Publication status | Published - Jan 2008 |
Keywords
- marine animals
- drug development
- cancer
- pigments
- activation
- emodin
- mechanisms
- expression
- prevention
- crinoids