Phytochemistry 2003-Oct
Lignans from Saururus chinensis inhibiting the transcription factor NF-kappaB.
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The sesquineolignans, saucerneol D and saucerneol E were isolated from the roots of Saururus chinensis together with four known lignans, manassantin A, manassantin B, (-)-saucerneol methyl ether, and (+)-saucernetin. Structure elucidation was based on the analysis of spectroscopic data and anti-inflammatory activity was studied using HeLa cells transfected with NF-kappaB reporter construct. All compounds except for (+)-saucernetin inhibited NF-kappaB dependent reporter gene expression with IC50 values of 2.5-16.9 microM.