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Induction of B cell responses in the stomach of Helicobacter pylori- infected subjects after oral cholera vaccination.
A Mattsson, … , M Quiding-Järbrink, A M Svennerholm
A Mattsson, … , M Quiding-Järbrink, A M Svennerholm
Published July 1, 1998
Citation Information: J Clin Invest. 1998;102(1):51-56. https://doi.org/10.1172/JCI22.
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Research Article

Induction of B cell responses in the stomach of Helicobacter pylori- infected subjects after oral cholera vaccination.

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Abstract

We have evaluated the possibility of inducing antibody responses locally in the human stomach as a prerequisite for the development of a vaccine against Helicobacter pylori. Both H. pylori-infected and noninfected subjects were immunized with an oral B subunit whole cell (BS-WC) cholera vaccine, and total and vaccine-specific antibody-secreting cells (ASC) were determined by the enzyme-linked immunospot (ELISPOT) technique in cells isolated from the antrum and duodenum, respectively, before and after vaccination. Most of the subjects responded to the vaccination with high frequencies of vaccine-specific ASCs in the duodenum as well as high-serum antibody titers, and no significant differences were seen in the responses between H. pylori- infected and noninfected subjects. When studying the gastric mucosa, on the other hand, there were dramatic differences between the H. pylori-infected and the noninfected subjects. Thus, whereas none of the noninfected subjects responded to the immunization in antrum, most of the H. pylori-infected subjects had high frequencies of vaccine-specific ASCs in this location after vaccination. Furthermore, the H. pylori-infected subjects had strikingly higher (as a mean 80-fold) frequencies of total IgA-secreting cells in antrum than the noninfected subjects, whereas the frequencies of total IgA-secreting cells in the duodenum were comparable between the groups. In conclusion, these results demonstrate the possibility of inducing antibody responses locally in the gastric mucosa of H. pylori-infected individuals, a finding with obvious implications for the future development of a therapeutic vaccine against H. pylori.

Authors

A Mattsson, H Lönroth, M Quiding-Järbrink, A M Svennerholm

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