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  • Title: Immunochemical characterization of the mucoid exopolysaccharide of Pseudomonas aeruginosa.
    Author: Pier GB, Matthews WJ, Eardley DD.
    Journal: J Infect Dis; 1983 Mar; 147(3):494-503. PubMed ID: 6220094.
    Abstract:
    Alginic acid-like mucoid exopolysaccharide was isolated from three strains of Pseudomonas aeruginosa obtained from the sputa of patients with cystic fibrosis. Purified mucoid antigens were greater than 99% uronic acid. With a hemagglutination assay, antibody responses to the mucoid exopolysaccharide were documented after immunization of rabbits with either whole mucoid organisms or purified mucoid exopolysaccharide. The mucoid antigen from one strain (no. 2192) was composed predominantly of a single serologic epitope shared among 40 alginate exopolysaccharides from different clinical isolates. The mucoid exopolysaccharide from the other two strains (nos. 1 and 258) had a serotype-specific determinant in addition to the common epitope. Analyses of antibody in sera from normal adults, children, and patients with cystic fibrosis culture-positive and culture-negative for mucoid P. aeruginosa showed a highly significant (P less than 0.001) association between increased hemagglutination titers and positive cultures for mucoid P. aeruginosa.
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