Immune response to cholera toxin epitope inserted in Salmonella flagellin

See allHide authors and affiliations

Science  07 Apr 1989:
Vol. 244, Issue 4900, pp. 70-72
DOI: 10.1126/science.2468182


Bacterial flagella are potent immunogens and aromatic-dependent (aro) Salmonella as live vaccines evoke humoral and cellular immune responses. Such strains expressing epitopes of protective antigens as inserts in flagellin would provide a novel way to vaccinate against diseases caused by unrelated pathogens. A synthetic oligonucleotide specifying an epitope of cholera toxin subunit B was inserted in a Salmonella flagellin gene. The chimeric flagellin functioned normally and the epitope was expressed at the flagellar surface. Parenteral administration to mice of an aro A flagellin-negative strain of S. dublin expressing the chimeric flagellin gene evoked antibody to cholera toxin.

Stay Connected to Science