Journal
JOURNAL OF BIOMEDICAL RESEARCH
Volume 34, Issue 1, Pages 36-43Publisher
NANJING MEDICAL UNIV
DOI: 10.7555/JBR.33.20190095
Keywords
Weissella cibaria JW15; probiotics; immune-enhancing effect; heat-killed probiotics; viable probiotics
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Funding
- Cooperative Research Program for Agriculture Science & Technology Development, Rural Development Administration, Republic of Korea [PJ01283407]
- Post-Doctoral Fellowship Program - Ministry of Education of the Republic of Korea through the Chungbuk National University
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The objective of this study is to investigate the immune-enhancing ability of viable and heat-killed Weissella cibaria JW15 (JW15) isolated from Kimchi in RAW 264.7 macrophages. The immune effects were evaluated by measuring the production of NO, cytokines, inflammatory enzyme, and activation of NF-kappa B. Viable JW15 executed higher activity on stimulating the release of TNF-alpha as well as activating NF-kappa B compared to that of heat-killed JW15. Additionally, viable and heat-killed JW15 significantly increased the production of NO, IL-6 and TNF-alpha more than that of Lactobacillus rhamnosus GG (LGG). Furthermore, viable JW15 induced higher production of iNOS compared with that of viable LGG. Collectively, our finding indicates that viable JW15 had similar, if not more, immune-enhancing activities as heat-killed JW15. In addition, viable JW15 had higher immune-enhancing activity than commercial strain LGG. Therefore, viable JW15 has the potential to be used as a functional food to improve the host immune response.
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