Essential functional role of the polysaccharide intercellular adhesin of Staphylococcus epidermidis in hemagglutination

Dietrich Mack, Joachim Riedewald, Holger Rohde, Tim Magnus, Hubert H. Feucht, Holger A. Elsner, Rainer Laufs, Mark E. Rupp

Research output: Contribution to journalArticlepeer-review

97 Scopus citations

Abstract

Hemagglutination of erythrocytes is a common property of Staphylococcus epidermidis strains, which is related to adherence and biofilm formation and may be essential for the pathogenesis of biomaterial-associated infections caused by S. epidermidis. In three independent biofilm-producing, hemagglutination-positive S. epidermidis isolates, interruption of the icaADBC operon essential for polysaccharide intercellular adhesin (PIA) synthesis by Tn917 insertions led to a hemagglutination-negative phenotype. An immunoglobulin G fraction of antiserum to PIA greatly reduced hemagglutination. Purified PIA led to a 64-fold decrease of hemagglutination titers of these strains; however, it did not mediate hemagglutination by itself. These observations define PIA as the hemagglutinin of S. epidermidis or at least as its major functional component.

Original languageEnglish (US)
Pages (from-to)1004-1008
Number of pages5
JournalInfection and immunity
Volume67
Issue number2
DOIs
StatePublished - 1999

ASJC Scopus subject areas

  • Parasitology
  • Microbiology
  • Immunology
  • Infectious Diseases

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