Abstract
Escherichia coli F-18 isolated from the feces of a healthy human is an excellent colonizer of the CD-1 mouse colon. In the present investigation, adhesion of E. coli F-18 to CD-1 mouse colonic mucus and bovine serum albumin (BSA), immobilized on polystyrene, was studied. Adhesion of E. coli F-18 to mucus was two- to sixfold greater than to either BSA or polystyrene. E. coli F-18 lipopolysaccharide specifically blocked adhesion of E. coli F-18 to mucus and mimicked adhesion of E. coli F-18 to mucus, BSA, and polystyrene. Purified capsule also blocked adhesion of E. coli F-18 to mucus, but this inhibition was found to be entirely nonspecific. The specific E. coli F-18 receptor in mucus appeared to be a glycoprotein, containing sugars normally found in mucins and having a maximum molecular weight of between 1.25 X 10(5) and 2.5 X 10(5).
MeSH Terms
Adhesiveness
Animals
Colon/microbiology
Edetic Acid/pharmacology
Escherichia coli/physiology
Feces/microbiology
Glycoproteins/analysis
Humans
Lipopolysaccharides/pharmacology
Male
Mice
Mice, Inbred Strains
Molecular Weight
Mucus/analysis,microbiology
Chemicals
Glycoproteins
Lipopolysaccharides
Edetic Acid
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Cohen P S
Arruda J C
Williams T J
Laux D C
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