Lactobacillus rhamnosus GG Reduces β-conglycinin- Allergy-Induced Apoptotic Cells by Regulating Bacteroides and Bile Secretion Pathway in Intestinal Contents of BALB/c Mice

• Published in: Nutrients Vol. 13; no. 1; p. 55
• Main Authors: Chen, Xiaoxu, Wu, Yuekun, Hu, Yaozhong, Zhang, Yan, Wang, Shuo
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 27-12-2020; MDPI
• Subjects: Allergens; Allergies; allergy; Apoptosis; apoptotic cells; Arachidonic acid; Bacteroides; Bile; Conglycinin; Deoxycholic acid; DNA nucleotidylexotransferase; Edema; Gene expression; gut microbiota; Histamine; Homeostasis; Hypersensitivity; Immune system; Immunoglobulins; Intestinal microflora; Intestine; Lactobacilli; Lactobacillus rhamnosus; LGG; Malate; Metabolism; Metabolites; metabolome; Microbiota; Peptides; Phenylalanine; Probiotics; Relative abundance; rRNA 16S; Secretion; Software; T cell receptors; Taxonomy; Tryptophan; β-conglycinin; β-conglycinin; allergy; apoptotic cells; LGG; gut microbiota; metabolome
• ISSN: 2072-6643; 2072-6643
• DOI: 10.3390/nu13010055

Allergy can cause intestinal damage, including through cell apoptosis. In this study, intestinal cell apoptosis was first observed in the β-conglycinin (β-CG) allergy model, and the effect of
GG (LGG) on reducing apoptosis of cells in the intestine and its underlying mechanisms were further investigated. Allergic mice received oral LGG daily, and intestinal tissue apoptotic cells, gut microbiota, and metabolites were evaluated six and nine days after intervention. Terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) analysis revealed that LGG intervention could reduce the incidence of cell apoptosis more effectively than natural recovery (NR). The results of 16S rRNA analysis indicated that LGG intervention led to an increase in the relative abundance of
. Metabolite analysis of intestinal contents indicated that histamine,
-acetylhistamine,
(α)-γ-glutamylhistamine, phenylalanine, tryptophan, arachidonic acid malate, and xanthine were significantly decreased, and deoxycholic acid, lithocholic acid were significantly increased after the LGG intervention on β-CG allergy; the decreases in histamine and
(α)-γ-glutamylhistamine were significant compared with those of NR. In conclusion, LGG reduces apoptosis of cells induced by β-CG allergy, which may be related to regulation of
and the bile secretion pathway.