Helicobacter pylori flagella: antigenic profile and protective immunity |
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Authors: | Skene Caroline Young Anna Every Alison Sutton Philip |
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Institution: | Centre for Animal Biotechnology, University of Melbourne, Melbourne, Australia. |
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Abstract: | Reproducible induction of sterilizing immunity, essential for an effective Helicobacter pylori vaccine, remains elusive. As motility is essential for gastric colonization by Helicobacter, we evaluated whether a vaccine targeting flagella induces improved protection. Mice immunized with a vaccine enriched for H. pylori flagella sheath proteins exhibited significantly reduced colonization, equivalent to that observed in mice immunized with whole-cell lysate. Two-dimensional profiles indicated that flagella contain proteins not evident in whole-cell lysate. Moreover, comparison of Western blot profiles using whole-cell lysate antisera revealed striking differences in antigenicity. |
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Keywords: | Helicobacter pylori flagella sheath motility vaccine protective antigen |
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