Protection of mice from Shiga toxin-2 toxemia by mucosal vaccine of Shiga toxin 2B-His with Escherichia coli enterotoxin

Takao Tsuji, Takeshi Shimizu, Keiko Sasaki, Yoshiyasu Shimizu, Kentaro Tsukamoto, Hideyuki Arimitsu, Sadayuki Ochi, Satoshi Sugiyama, Koki Taniguchi, Paola Neri, Hiroshi Mori

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Escherichia coli O157:H7 produces Stx1 and Stx2 causing severe diseases. Their B subunits (StxBs) are useful for a vaccine but exhibit low immunogenicity, especially Stx2B. Nasal vaccination with StxBs plus cholera toxin induces only serum anti-Stx1B antibodies in mice. However, nasal administration of a mutant of E. coli enterotoxin and His-tagged Stx2B induced serum antibodies neutralizing Stx2 in vitro or in vivo and mucosal IgA antibodies in lungs. As His-tagged Stx2B showed five or three polymers in gel filtration chromatography, His-tagged Stx2B forms smaller tertiary structure than the native one and is effective for preventing Stx2 toxemia as a nasal vaccine.

Original languageEnglish
Pages (from-to)469-476
Number of pages8
JournalVaccine
Volume26
Issue number4
DOIs
Publication statusPublished - 24-01-2008

All Science Journal Classification (ASJC) codes

  • Molecular Medicine
  • Immunology and Microbiology(all)
  • veterinary(all)
  • Public Health, Environmental and Occupational Health
  • Infectious Diseases

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