Abstract
The effects of Leuconostoc mesenteroides strain NTM048 and type strain JCM6124T on the murine immune system were characterized. Although the bacterial cells and exopolysaccharides of each strain induced immunoglobulin A production in Peyer’s patch cells, the effects of NTM048 were more potent than those of JCM6124T. Oral administration of the cells of each strain increased the fecal immunoglobulin A content in NTM048-treated mice, but not in JCM6124T-treated mice. A flow cytometric analysis showed that the CD4+ T-cell populations in the mouse spleens tended to increase in the NTM048 group. These results suggest that immunomodulating ability is characteristic of strain NTM048.
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