Moon HI, Kim KS, Lee YC, Lee JH. Isolated compounds from black bean inhibit the classical pathway of the complement.
Immunopharmacol Immunotoxicol 2011:1-4. [PMID:
22121891 DOI:
10.3109/08923973.2011.631927]
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Abstract
The present study evaluated the anticomplement effects from isolated compounds of black bean in classical pathway complement system. Using column chromatograph, four compounds kaempferol 3-O-β-D-glucopyranoside (1), kaempferol 5-O-β-D-glucopyranoside (2), 3-O-[α-L-rhamnopyranosyl(1-2)-β-D-glucopyranosyl(1-2)-β-D-glucuronopyranosyl]olean-12-en-3β,22β,24-triol (3) and 3-O-[β-D-glucopyranosyl(1-2)-β-D-galactopyranosyl(1-2)-β-D-glucuronopyranosyl]olean-12-en-3β,22β,24-triol (4) were isolated and evaluated for in vitro anticomplement activity. 3 showed inhibitory activity against complement system with 50% inhibitory concentrations (IC(50)) values of 98.2 μg/ml. This is the first report of anticomplement activity of isolated compounds from black bean.
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