Journal
JOURNAL OF MICROBIOLOGY
Volume 54, Issue 7, Pages 503-509Publisher
MICROBIOLOGICAL SOCIETY KOREA
DOI: 10.1007/s12275-016-6160-2
Keywords
Lactobacillus curvatus; kimchi; interleukin-10; dendritic cells; colitis
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Funding
- World Institute of Kimchi - Ministry of Science, ICT and Future Planning, Republic of Korea [KE1603-1]
- National Research Council of Science & Technology (NST), Republic of Korea [KE1603-1] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Probiotics such as lactobacilli and bifidobacteria have health promoting effects by immune modulation. In the present study, we examined the immunomodulatory properties of Lactobacillus curvatus WiKim38, which was newly isolated from baechu (Chinese cabbage) kimchi. The ability of L. curvatus WiKim38 to induce cytokine production in bone marrow-derived dendritic cells (BMDCs) was determined by enzyme-linked immunosorbent assay. To evaluate the molecular mechanisms underlying L. curvatus Wikim38-mediated IL-10 production, Western blot analyses and inhibitor assays were performed. Moreover, the in vivo anti-inflammatory effects of L. curvatus WiKim38 were examined in a dextran sodium sulfate (DSS)-induced colitis mouse model. L. curvatus WiKim38 induced significantly higher levels of IL-10 in BMDCs compared with that induced by LPS. NF-kappa B and ERK were activated by L. curvatus WiKim38, and an inhibitor assay revealed that these pathways were required for L. curvatus WiKim38-induced production of IL-10 in BMDCs. An in vivo experiment showed that oral administration of L. curvatus WiKim38 increased the survival rate of mice with DSS-induced colitis and improved clinical signs and histopathological severity in colon tissues. Taken together, these results indicate that L. curvatus Wikim38 may have health-promoting effects via immune modulation, and may thus be applicable for therapy of various inflammatory diseases.
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