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Binding of extracellular matrix proteins to the surface of Bacteroides spp

, : Binding of extracellular matrix proteins to the surface of Bacteroides spp. Anaerobe 3(2-3): 91-95

The binding of fibronectin an vitronectin to 207 Bacteroides strains and the binding of collagen and sialoproteins to 55 Bacteroides strains were investigated by means of latex agglutination tests. The binding of fibronectin, collagen and lactoferrin to the same 55 strains was also tested by using 125I-labelled proteins. The 207 strains, belonging to ten Bacteroides species, were isolated from different infections (51%) and from faeces of healthy subjects (49%). Most of the strains displaying fibronectin binding belonged in the species B. fragilis or B. vulgatus. The binding could be inhibited by preincubation of the cells with an excess amount of fibronectin. No inhibition of the binding was observed with carbohydrates. The vitronectin binding of the strains was less common, but was always observed to accompany fibronectin binding. None of the examined 55 strains exhibited any binding to fetuin or asialofetuin. The radiolabelling method indicated a low binding to 125I-fibronectin. The binding of 125I-collagen-I and 125I-lactoferrin in the Bacteroides strains tested was higher than that of 125I-fibronectin.


PMID: 16887569

DOI: 10.1006/anae.1997.0079

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