Helicobacter pylori flagella: antigenic profile and protective immunity.
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.
Skene
Caroline
C
Centre for Animal Biotechnology, University of Melbourne, Melbourne, Australia.
Young
Anna
A
Every
Alison
A
Sutton
Philip
P
D000818:Animals; D000942:Antigens, Bacterial / Q000032:analysis* / Q000276:immunology*; D001426:Bacterial Proteins / Q000032:analysis; D004195:Disease Models, Animal; D015180:Electrophoresis, Gel, Two-Dimensional; D005260:Female; D005407:Flagella / Q000737:chemistry* / Q000276:immunology*; D016481:Helicobacter Infections / Q000517:prevention & control; D016480:Helicobacter pylori / Q000737:chemistry* / Q000276:immunology*; D015151:Immunoblotting; D051379:Mice; D020543:Proteome / Q000032:analysis; D022223:Vaccines, Subunit / Q000276:immunology
D000942:Antigens, Bacterial; D001426:Bacterial Proteins; D020543:Proteome; D022223:Vaccines, Subunit