Serum dependent expression of Enterococcus faecalis adhesins involved in the colonization of heart cells.

Abstract:

:Our previous studies have shown that the adhesive ability of Enterococcus faecalis is dependent on the strain and is further modified by growth in serum. The data reported here demonstrate that E. faecalis adherence is mediated by carbohydrate residues present on the bacterial cell surface. Some of these (D-mannose and D-glucose) are expressed by strains isolated from both urinary tract infections (UTI) and endocarditis (EN) when the cells are grown in brain-heart infusion broth (BHIB), and mediate adherence to either urinary tract epithelial cells or the Girardi Heart (GH) cell line. Other residues are present only on EN strains (D-galactose and L-fucose) and mainly mediate adherence to GH cells. These ligands can also be expressed by UTI isolates after growth in serum. D-galactose-bearing adhesins also seem to be involved in internalization of serum grown UTI strains and BHIB or serum grown EN isolates into GH cells.

journal_name

Microb Pathog

journal_title

Microbial pathogenesis

authors

Guzmàn CA,Pruzzo C,Platè M,Guardati MC,Calegari L

doi

10.1016/0882-4010(91)90036-a

subject

Has Abstract

pub_date

1991-12-01 00:00:00

pages

399-409

issue

6

eissn

0882-4010

issn

1096-1208

journal_volume

11

pub_type

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