title: Recombinant Bacillus subtilis Spores Elicit Th1/Th17-Polarized Immune Response in a Murine Model of Helicobacter pylori Vaccination.
abstract: Current progress in research on vaccines against Helicobacter pylori emphasizes the significance of eliciting the Th1/Th17-polarized immune response. Such polarization can be achieved by selection of appropriate antigen and adjuvant. In this study, we wanted to check the polarization of the immune response elicited by UreB protein of Helicobacter acinonychis delivered by recombinant Bacillus subtilis spores upon oral immunization. B. subtilis spores presenting fragment of UreB protein and able to express entire UreB in vegetative cells after germination were orally administered to mice along with aluminum hydroxide or recombinant spores presenting IL-2 as an adjuvant. The pattern of cytokines secreted by sensitized splenocytes assessed by the cytometric bead array clearly indicated polarization of the immune response toward both Th1 and Th17 in mice immunized with the use of above-mentioned adjuvants. Obtained result is promising regarding the usage of recombinant spores in formulations of vaccines against H. pylori and line up with the current state of research emphasizing the key role of appropriate adjuvants.
authors.affiliation: Department of Medical Biotechnology, Intercollegiate Faculty of Biotechnology UG-MUG, University of Gdańsk, Dębinki 1, 80-211, Gdańsk, Poland.
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Stasiłojć
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Hinc
authors.forename: Grażyna
authors.initials: G
authors.lastname: Peszyńska-Sularz
authors.forename: Michał
authors.initials: M
authors.lastname: Obuchowski
authors.forename: Adam
authors.initials: A
authors.lastname: Iwanicki
mesh_terms: D000818:Animals; D001412:Bacillus subtilis / Q000235:genetics / Q000276:immunology*; D001428:Bacterial Vaccines / Q000235:genetics / Q000276:immunology* / Q000494:pharmacology; D005260:Female; D016481:Helicobacter Infections / Q000235:genetics / Q000276:immunology* / Q000517:prevention & control; D016480:Helicobacter pylori / Q000235:genetics / Q000276:immunology*; D007111:Immunity, Cellular / Q000187:drug effects; D051379:Mice; D008807:Mice, Inbred BALB C; D013171:Spores, Bacterial / Q000235:genetics / Q000276:immunology; D018417:Th1 Cells / Q000276:immunology*; D058504:Th17 Cells / Q000276:immunology*; D014611:Vaccination
chemical_list: D001428:Bacterial Vaccines