Purpose Numerous studies have found that probiotics benefit the intestinal barrier. However, the prophylactic effects of probiotics on the intestinal barrier, i.e., if probiotics exert protective effects in healthy individuals to defend them against harmful elements, have seldomly been reported. The present study aimed to investigate the possible mechanisms of potential strains with the function of preventing intestinal barrier damage. Methods This study investigated nine potential probiotic strains using in vitro and in vivo models on their intestinal barrier-protecting properties. Transcriptomic was then employed to decipher the underlying mechanisms of action of the strains. Results The results showed that the strains, to varying degrees, regulated the ratio of interleukin (IL)-10 and IL-12 in peripheral blood mononuclear cells (PBMCs), increased the transepithelial electrical resistance (TEER) values, and decreased Caco-2 cell monolayers permeability. Correspondingly, the strains showed different prophylactic efficacies in protecting mice from dextran sulfate sodium (DSS)-induced intestinal barrier damage. Remarkably, Bifidobacterium bifidum FL-228.1 (FL-228.1) showed the best prophylactic efficacies in protecting mice from DSS-induced intestinal barrier damage. Further research suggested that FL-228.1 exerted its prophylactic effects by enhancing mucin 2 (Muc2) production and Claudin (Cldn)-4 in the colon. Furthermore, the transcriptomic and protein-protein interactions (PPI) analyses indicated that the inhibition of NLRP3 and the activation of PPAR gamma and TLR2 could be involved in protecting the intestinal barrier by FL-228.1. Conclusion Bifidobacterium bifidum FL-228.1 may be developed as a promising probiotic for the prevention of intestinal barrier damage via PPAR gamma/NLRP3/ TLR2 pathways by enhancing Muc2 and Cldn-4.
机构:
Shanghai Business Sch, Dept Food Sci, Shanghai, Peoples R ChinaShanghai Business Sch, Dept Food Sci, Shanghai, Peoples R China
Han, Mei
;
Liao, Wenyan
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机构:
Bright Dairy & Food Co Ltd, Technol Ctr, State Key Lab Dairy Biotechnol, Shanghai, Peoples R ChinaShanghai Business Sch, Dept Food Sci, Shanghai, Peoples R China
Liao, Wenyan
;
Si, Xiaojing
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h-index: 0
机构:
Shanghai Business Sch, Dept Food Sci, Shanghai, Peoples R ChinaShanghai Business Sch, Dept Food Sci, Shanghai, Peoples R China
Si, Xiaojing
;
Bai, Chen
论文数: 0引用数: 0
h-index: 0
机构:
Shanghai Business Sch, Dept Food Sci, Shanghai, Peoples R ChinaShanghai Business Sch, Dept Food Sci, Shanghai, Peoples R China
Bai, Chen
;
Gai, Zhonghui
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h-index: 0
机构:
Wecare Probiot Suzhou Co Ltd, Dept Res & Dev, 1033 Longqiao Rd, Suzhou 215200, Jiangsu, Peoples R ChinaShanghai Business Sch, Dept Food Sci, Shanghai, Peoples R China
机构:
Shanghai Business Sch, Dept Food Sci, Shanghai, Peoples R ChinaShanghai Business Sch, Dept Food Sci, Shanghai, Peoples R China
Han, Mei
;
Liao, Wenyan
论文数: 0引用数: 0
h-index: 0
机构:
Bright Dairy & Food Co Ltd, Technol Ctr, State Key Lab Dairy Biotechnol, Shanghai, Peoples R ChinaShanghai Business Sch, Dept Food Sci, Shanghai, Peoples R China
Liao, Wenyan
;
Si, Xiaojing
论文数: 0引用数: 0
h-index: 0
机构:
Shanghai Business Sch, Dept Food Sci, Shanghai, Peoples R ChinaShanghai Business Sch, Dept Food Sci, Shanghai, Peoples R China
Si, Xiaojing
;
Bai, Chen
论文数: 0引用数: 0
h-index: 0
机构:
Shanghai Business Sch, Dept Food Sci, Shanghai, Peoples R ChinaShanghai Business Sch, Dept Food Sci, Shanghai, Peoples R China
Bai, Chen
;
Gai, Zhonghui
论文数: 0引用数: 0
h-index: 0
机构:
Wecare Probiot Suzhou Co Ltd, Dept Res & Dev, 1033 Longqiao Rd, Suzhou 215200, Jiangsu, Peoples R ChinaShanghai Business Sch, Dept Food Sci, Shanghai, Peoples R China