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Exopolysaccharide-Producing Bifidobacterium adolescentis Strains with Similar Adhesion Property Induce Differential Regulation of Inflammatory Immune Response in Treg/Th17 Axis of DSS-Colitis Mice

by 1, 1, 2 and 1,3,*
1
Key Laboratory of Functional Dairy Science, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
2
College of Horticulture, China Agricultural University, Beijing 100193, China
3
The Research & Innovation Centre of Food Nutrition and Human Health (Beijing), China Agricultural University, Beijing 100083, China
*
Author to whom correspondence should be addressed.
Nutrients 2019, 11(4), 782; https://doi.org/10.3390/nu11040782
Received: 2 March 2019 / Revised: 28 March 2019 / Accepted: 1 April 2019 / Published: 4 April 2019
(This article belongs to the Special Issue Health Benefits of Traditional and Next Generation Probiotics)
Intestinal bifidobacteria benefit human health by promoting and modulating the gut flora, and boosting therapeutic efficiency for chronic metabolic diseases and cancer. Recently, Bifidobacterium adolescentis strains with high adhesion to intestinal epithelial cells were associated with induction of T-helper 17 (Th17) cells in humans and rodents. Here, two B. adolescentis strains with similar adhesive ability but different aggregation properties were investigated for specific immunoregulatory effects, including the underlying cellular pathway, on macrophage and T-regulatory (Treg)/Th17 axis activation in vitro and in the colon of dextran sodium sulfate (DSS)-colitis mice in vivo. In-vitro, the auto-aggregative B. adolescentis strain IF1-11 induced significantly higher IL-6 and lower IL-10 secretion from immune cells, and it induced abundant Th17 cells. The non-aggregating strain IF1-03 induced significantly higher IL-10, less IL-6 and a high proportion of Treg/Th17 cells compared to total T cells. In vivo, orally administered IF1-03 protected DSS-colitis mice via activation of dendritic cells or macrophages and skewing of Treg/Th17 cells, consistent with Treg cell induction in vitro. IF1-03 exopolysaccharides showed a functional recognition pattern similar to IF1-03 for IL-10 cytokine secretion and Treg cell-differentiation induction, both dependent on the toll-like receptor 2–ERK/p38 MAPK-signaling cascade for macrophage activation. We suggest that B. adolescentis exopolysaccharide-associated enterocyte adhesion/aggregation phenotypes determine strain-specific adaptive immune responses in the gut via the macrophage-regulated Treg/Th17 axis. View Full-Text
Keywords: Bifidobacterium adolescentis; macrophage; Treg/Th17 axis; exopolysaccharide; ERK/p38 MAPK pathway; IBD Bifidobacterium adolescentis; macrophage; Treg/Th17 axis; exopolysaccharide; ERK/p38 MAPK pathway; IBD
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MDPI and ACS Style

Yu, R.; Zuo, F.; Ma, H.; Chen, S. Exopolysaccharide-Producing Bifidobacterium adolescentis Strains with Similar Adhesion Property Induce Differential Regulation of Inflammatory Immune Response in Treg/Th17 Axis of DSS-Colitis Mice. Nutrients 2019, 11, 782. https://doi.org/10.3390/nu11040782

AMA Style

Yu R, Zuo F, Ma H, Chen S. Exopolysaccharide-Producing Bifidobacterium adolescentis Strains with Similar Adhesion Property Induce Differential Regulation of Inflammatory Immune Response in Treg/Th17 Axis of DSS-Colitis Mice. Nutrients. 2019; 11(4):782. https://doi.org/10.3390/nu11040782

Chicago/Turabian Style

Yu, Rui; Zuo, Fanglei; Ma, Huiqin; Chen, Shangwu. 2019. "Exopolysaccharide-Producing Bifidobacterium adolescentis Strains with Similar Adhesion Property Induce Differential Regulation of Inflammatory Immune Response in Treg/Th17 Axis of DSS-Colitis Mice" Nutrients 11, no. 4: 782. https://doi.org/10.3390/nu11040782

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