"Oral Immunization with the Saliva-Binding Region of Streptococcus mutans AgI/II Genetically Coupled to the Cholera Toxin B Subunit Elicits T-Helper-Cell Responses in Gut-

According to the authors' abstract of an article published in Infection and Immunity, "Mice immunized intragastrically (i.g.) with a genetically constructed chimeric protein consisting of the saliva-binding region (SBR) of Streptococcus mutans AgI/II coupled to cholera toxin (CT) A2 and B subunits (CTA2/B) develop serum immunoglobulin G (IgG) and mucosal IgA antibody responses against AgI/II that are enhanced by the coadministration of CT as an adjuvant. To investigate the development of antigen-specific T cells in the gut-associated lymphoid tissues, mice were immunized i.g. with SBR, SBR-CTA2/B, or SBR-CTA2/B plus CT. AgI/II-specific T cells in Peyer's patches (PP), mesenteric...

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