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Probiotic effect of Lactococcus lactis subsp. cremoris RPG-HL-0136 on intestinal mucosal immunity in miceProbiotic effect of Lactococcus lactis subsp. cremoris RPG‑HL‑0136 on intestinal mucosal immunity in mice

Other Titles
Probiotic effect of Lactococcus lactis subsp. cremoris RPG‑HL‑0136 on intestinal mucosal immunity in mice
Authors
Park, Byoung HeeKim, In SungPark, Jung KukZhi, ZhengLee, Hea MinKwon, Oh WookLee, Byung Cheon
Issue Date
12월-2021
Publisher
SPRINGER SINGAPORE PTE LTD
Keywords
Intestinal mucosal immunity; Lactococcus lactis subsp; Microbiome; Probiotics; cremoris
Citation
APPLIED BIOLOGICAL CHEMISTRY, v.64, no.1, pp.1 - 9
Indexed
SCIE
SCOPUS
KCI
Journal Title
APPLIED BIOLOGICAL CHEMISTRY
Volume
64
Number
1
Start Page
1
End Page
9
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/135680
DOI
10.1186/s13765-021-00667-6
ISSN
2468-0834
Abstract
Lactococcus lactis subsp. cremoris is a lactic acid bacterium commonly used in the cheese manufacturing industry. It is known to produce antibacterial peptides and has recently received attention for its role as a probiotic strain. Here, we report the isolation of a new strain, Lactococcus lactis subsp. cremoris RPG-HL-0136 (RPG0136) from dried compost, which exhibits strong antibacterial activity. When RPG0136 was fed to mice, it increased the intestinal population of two beneficial bacteria, Lactobacillus and Bifidobacterium, whereas it decreased the intestinal population of two harmful bacteria, Bacteroides and Enterobacter. In addition, it increased the concentration of short-chain fatty acids, including acetic acid, propionic acid, and butyric acid, with a simultaneous decrease in pH, and accelerated the catabolic degradation of proteins, lipids, and starch. Lastly, RPG0136 increased the plasma IgG and intestinal mucosal SIgA concentrations and upregulated Reg3r, MUC1, and MUC2 expression to improve the intestinal mucosal immune function. The results of this study suggest that RPG0136 is a potential probiotic strain that supports the growth of a beneficial microbiome by promoting the synthesis of organic acids and enhancing intestinal immune function.
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