Recombinant Bacillus subtilis Spores Elicit Th1/Th17-Polarized Immune Response in a Murine Model of Helicobacter pylori Vaccination

Molecular Biotechnology
Małgorzata StasiłojćAdam Iwanicki

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.

References

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Oct 31, 2014·Journal of Medical Microbiology·Zhenwen ZhouZhigang Liu

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Citations

Sep 16, 2015·Helicobacter·Bram FlahouKeigo Shibayama
Sep 16, 2015·Helicobacter·Anna WalduckSukanya Raghavan
Aug 18, 2016·Helicobacter·Chloë De WitteFreddy Haesebrouck
Aug 18, 2016·Helicobacter·Dominique VelinMarkus Gerhard
Jan 8, 2017·Applied Microbiology and Biotechnology·He WangRuijin Yang

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Methods Mentioned

BETA
lavage
ELISA
Flow Cytometry

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