Inactivated Salmonella expressing the receptor-binding domain of bacterial adhesins elicit antibodies inhibiting hemagglutination

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4 Citations (Scopus)

Abstract

We examined the potential of inactivated Salmonella strains to induce protective antibodies against two adhesins of pathogenic Escherichia coli. The receptor-binding domains of the F17a-G adhesin of F17a fimbriae and of the FimH adhesin of type 1 fimbriae were fused to the translocator domain of the autotransporter AIDA-I. An IgG response against F17a-G or FimH was induced after immunization of mice with acetone-inactivated Salmonella displaying the corresponding fimbrial receptor-binding domain. These sera inhibit in vitro agglutination of erythrocytes by E. coli carrying these fimbriae. Our results demonstrate that induced and subsequently acetone-inactivated Salmonella are useful delivery vehicles for the stimulation of an IgG antibody response against heterologous antigens.
Original languageEnglish
Pages (from-to)369-375
Number of pages7
JournalVet. Microbiol.
Volume131
Publication statusPublished - 2008

Keywords

  • Type 1 fimbriae
  • AIDA-I
  • Autodisplay
  • F17 fimbriae
  • Salmonella
  • Vaccine

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