Hemolysin of Aeromonas sobria stimulates production of cyclic AMP by cultured cells

Yoshio Fujii, Tomohiko Nomura, Keinosuke Okamoto

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Hemolysin of Aeromonas sobria possesses both cytotoxic activity against mammalian cells and enterotoxic activity. Histopathological examination revealed that hemolysin causes diarrhea without damaging the intestinal epithelial cells. And the fluid accumulated in the mouse intestinal loop by the action of the hemolysin is watery. These observations indicated that the enterotoxic activity of hemolysin is not dependent on its cytotoxic activity. To clarify the mechanism of the enterotoxic action of hemolysin, we examined cyclic nucleotide levels in cultured cells exposed to this toxin. These results showed that hemolysin stimulates the production of cyclic AMP in cultured cells and the cyclic AMPs thus produced emerge in the milieu of cells.

Original languageEnglish
Pages (from-to)67-72
Number of pages6
JournalFEMS Microbiology Letters
Volume176
Issue number1
DOIs
Publication statusPublished - Jul 1 1999
Externally publishedYes

Keywords

  • Aerolysin
  • Aeromonas sobria
  • Cyclic AMP
  • Enterotoxin
  • Hemolysin

ASJC Scopus subject areas

  • Microbiology
  • Molecular Biology
  • Genetics

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