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The role of surface structures of Streptococcus agalactiae in adhesion to epithelial cells



The role of surface structures of Streptococcus agalactiae in adhesion to epithelial cells



Medycyna Doswiadczalna i Mikrobiologia 42(3-4): 101-107



Induced mutants of S. agalactiae which differed in surface structures were used for the study. The aim of using them was to try to correlate the presence of defined structures or surface properties with the ability of group B streptococci to attach to epithelial cells. The presence of protein antigen R conditioned strong binding of S. agalactiae cells to hydrophobic gel. Strains bearing clumping factor (CF) showed high surface hydrophobicity and presented compact growth in serum soft agar. However, there was no correlation between high surface hydrophobicity and the ability to adhere. Fibrinogen binding decreased the attachment to epithelial cells of CF-positive strains. Preincubation of bacterial cells with lectin (ConA) did not influence the attachment of S. agalactiae strains with protein surface antigen but increased the adhesion of the strains with polysaccharide antigen or untypable.

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Accession: 041747751

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PMID: 2084445


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