Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

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Kim, B.H. et al.

Inhibitory effect of chroman carboxamide on interleukin-6 expression in response to lipopolysaccharide by preventing nuclear factor-kappaB activation in macrophages.

6-Hydroxy-7-methoxychroman-2-carboxylic acid (3-nitrophenyl)amide (CP-1158) is a synthetic chroman carboxamide with trolox-like chemical structure. In the present study, CP-1158 was found to inhibit interleukin (IL)-6 production in lipopolysaccharide (LPS)-stimulated macrophages RAW 264. 7. The CP-1158 attenuated LPS-induced synthesis of IL-6 transcript but also inhibited LPS-induced IL-6 promoter activity. Further, CP-1158 attenuated LPS-induced syntheses of tumor necrosis factor (TNF)-alpha, IL-1beta, interferon-inducible protein (IP)-10 and macrophage inflammatory protein (MIP)-1beta transcripts. Nuclear factor (NF)-kappaB has been evidenced to play a major mechanism in LPS-induced expression of IL-6 or other inflammatory cytokines. CP-1158 prevented LPS-induced nuclear translocation of NF-kappaB complex and subsequently inhibited DNA binding activity of NF-kappaB complex as well as NF-kappaB transcriptional activity in macrophages RAW 264. 7. However, CP-1158 did not affect LPS-induced phosphorylation and degradation of inhibitory kappaB (IkappaB). In another experiment, CP-1158 inhibited IL-6 promoter activity elicited by expression vectors encoding NF-kappaB p50 or p65 subunit. Taken together, CP-1158 inhibited LPS-induced expression of inflammatory cytokines including IL-6, targeting NF-kappaB activating pathway downstream IkappaB degradation, and thus could provide an anti-inflammatory potential of chroman carboxamide.[1]

References

Inhibitory effect of chroman carboxamide on interleukin-6 expression in response to lipopolysaccharide by preventing nuclear factor-kappaB activation in macrophages. Kim, B.H., Lee, K.H., Chung, E.Y., Chang, Y.S., Lee, H., Lee, C.K., Min, K.R., Kim, Y. Eur. J. Pharmacol. (2006) [Pubmed]

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