Growth phase of orally administered Lactobacillus strains differentially affects T helper-cell pathways

C.B.M. Maassen, W.J.A. Boersma, J.C.P.A. van Holten-Neelen, E.A.W. Claassen, J.D. Laman

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    Abstract

    Lactobacillus strains with probiotic activity are major constituents of numerous common food products. Due to their `generally regarded as safe¿-status (GRAS-status), Lactobacillus strains can also be genetically engineered for use in oral immunotherapeutic applications, such as vaccination and T lymphocyte tolerance induction in autoimmune disease. In the current study, we demonstrate that the growth phase of orally administered individual Lactobacillus strains can differentially affect antigen-specific antibody subclasses IgG1 and IgG2a, which might reflect skewing of systemic activity of T helper cell type 2 (Th2) and T helper cell type 1 (Th1) pathways, respectively. Mice were orally fed different wild type Lactobacillus strains in log phase or stationary phase and immunized intraperitoneally with a T-cell dependent protein antigen. Sera were evaluated for the ratio of antigen-specific IgG1 and IgG2a antibodies. Stationary Lactobacillus murines and Lactobacillus casei cultures, but not two other Lactobacillus strains, evoked significantly higher IgG1/IgG2a ratios than log phase cultures, possibly relating to increased activity of the Th2-pathway. Despite normal variation in antibody responses against TNP¿CGG among individual mice, a high correlation was found between the IgG1 and IgG2a responses of mice within experimental groups. This differential antibody response is likely due to growth phase-dependent differences in bacterial cell composition. Since Lactobacillus growth phase dependent skewing of antibody responses possibly reflecting T-cell pathways can inadvertently affect allergic and (auto)-immune responses, the current findings strongly caution against unidimensional views on the oral administration of individual Lactobacillus strains for probiotic or immunotherapeutic purposes, but also suggest additional possibilities for immune modulation.
    Original languageEnglish
    Pages (from-to)2751-2757
    JournalVaccine
    Volume21
    Issue number21-22
    DOIs
    Publication statusPublished - 2003

    Keywords

    • toxin fragment-c
    • t-helper-cell
    • multiple-sclerosis
    • mice
    • responses
    • tetanus
    • casei
    • expression
    • cytokines
    • tolerance

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    Maassen, C. B. M., Boersma, W. J. A., van Holten-Neelen, J. C. P. A., Claassen, E. A. W., & Laman, J. D. (2003). Growth phase of orally administered Lactobacillus strains differentially affects T helper-cell pathways. Vaccine, 21(21-22), 2751-2757. https://doi.org/10.1016/S0264-410X(03)00220-2