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FEMS Immunol Med Microbiol. 2007 Mar;49(2):205-14.

Lipoteichoic acid from Lactobacillus plantarum elicits both the production of interleukin-23p19 and suppression of pathogen-mediated interleukin-10 in THP-1 cells.

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School of Biotechnology and Institute of Life Science and Resources, Kyung Hee University, Suwon, Korea.


In this study, the stimulatory effects of different lactic acid bacteria strains, and their subcellular fractions, on the THP-1 cell line were evaluated. Lactobacillus plantarum was found in particular to induce high levels of IL-23p19 mRNA, but it moderately induced TNF-alpha production. IL-10 production was not entirely affected by L. plantarum stimulation. When subcellular fractions of L. plantarum were used to treat THP-1 cells, IL-23p19 mRNA expression was enhanced in a dose-responsive manner, specifically by lipoteichoic acid (LTA). The cotreatment of THP-1 cells by both L. plantarum and Staphylococcus aureus LTA resulted in decreased IL-10 production when compared with cells treated by S. aureus LTA alone. Taken together, these data suggest that LTA isolated from L. plantarum elicits stimulatory effects upon the expression of IL-23p19 and inhibitory effects on pathogen-mediated IL-10 production.

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