Reduced release of pneumolysin by Streptococcus pneumoniae in vitro and in vivo after treatment with nonbacteriolytic antibiotics in comparison to ceftriaxone

Annette Spreer, Holger Kerstan, Tobias Böttcher, Joachim Gerber, Alexander Siemer, Gregor Zysk, Timothy J Mitchell, Helmut Eiffert, Roland Nau

Research output: Contribution to journalArticlepeer-review

81 Citations (Scopus)

Abstract

Pneumolysin, a virulence factor of Streptococcus pneumoniae with cytotoxic and proinflammatory activities, occurs at concentrations from 0.85 to 180 ng/ml in cerebrospinal fluid (CSF) of meningitis patients. In pneumococcal cultures and in a rabbit meningitis model, the concentrations of pneumolysin in supernatant and CSF were lower after addition of nonbacteriolytic bactericidal antibiotics (rifampin and clindamycin) than after incubation with ceftriaxone.

Original languageEnglish
Pages (from-to)2649-54
Number of pages6
JournalAntimicrobial Agents and Chemotherapy
Volume47
Issue number8
Publication statusPublished - Aug 2003

Keywords

  • Adult
  • Aged
  • Animals
  • Anti-Bacterial Agents
  • Bacterial Proteins
  • Ceftriaxone
  • Cephalosporins
  • Child, Preschool
  • Colony Count, Microbial
  • Culture Media
  • Depression, Chemical
  • Electrophoresis, Polyacrylamide Gel
  • Female
  • Humans
  • Male
  • Meningitis, Pneumococcal
  • Microbial Sensitivity Tests
  • Middle Aged
  • Rabbits
  • Streptococcus pneumoniae
  • Streptolysins

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