Effects of adenylate cyclase toxin from Bordetella pertussis on human neutrophil interactions with Coccidioides immitis and Staphylococcus aureus

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Bordetella pertussis extract that contained adenylate cyclase toxin produced large increases in human neutrophil cyclic AMP levels and inhibited their oxidative burst, as reflected by luminol-enhanced chemiluminescence and superoxide release. The adenylate cyclase toxin-containing extract blocked neutrophil-mediated inhibition of N-acetylglucosamine incorporation by arthroconidia of Coccidioides immitis in a dose-dependent fashion but had no effect on neutrophil phagocytosis of Candida glabrata and only a slight inhibitory effect on arthroconidial attachment. Neither purified pertussis toxin nor extracts from Bordetella mutants lacking the adenylate cyclase toxin affected neutrophil-mediated inhibition of arthroconidial N-acetylglucosamine incorporation. These studies indicate that adenylate cyclase toxin, alone or in concert with other B. pertussis-elaborated toxins, blocks neutrophil inhibition of arthroconidia, primarily by affecting neutrophil responses other than attachment of phagocytosis.

Original languageEnglish (US)
Pages (from-to)751-755
Number of pages5
JournalInfection and Immunity
Issue number4
StatePublished - Jan 1 1988


ASJC Scopus subject areas

  • Parasitology
  • Microbiology
  • Immunology
  • Infectious Diseases

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