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Adhesion of human neutrophils to fibronectin is inhibited by comaruman, pectin of marsh cinquefoil Comarum palustre L., and by its fragments

Earlier, we detected antiinflammatory action of comaruman, pectin of the marsh cinquefoil Comarum palustre L. This effect can be explained by new data concerning inhibition of adhesion of human neutrophils to fibronectin by comaruman and its fragments. The galacturonan backbone fragment of molecular...

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Published in:Biochemistry (Moscow) 2005-01, Vol.70 (1), p.108-112
Main Authors: Popov, S. V., Ovodova, R. G., Popova, G. Yu, Nikitina, I. R., Ovodov, Yu. S.
Format: Article
Language:English
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Summary:Earlier, we detected antiinflammatory action of comaruman, pectin of the marsh cinquefoil Comarum palustre L. This effect can be explained by new data concerning inhibition of adhesion of human neutrophils to fibronectin by comaruman and its fragments. The galacturonan backbone fragment of molecular mass >10 kD appears to be the active region of the comaruman macromolecule. Comaruman CP (50-200 mu g/ml) was found to decrease adhesion of neutrophils stimulated by phorbol 12-myristate 13-acetate (PMA, 1.625 mu M) and by dithiothreitol (DTT, 0.5 mM). The fragments of comaruman CP-H (100 kD), CP-H1 (10-50 kD), and CP-H2 (100 kD) obtained by acidic hydrolysis and representing regions of linear polygalacturonan are shown to inhibit neutrophil adhesion more than the crude pectin. A fragment CP-E (
ISSN:0006-2979
1608-3040
0320-9725
DOI:10.1007/s10541-005-0058-7