Glucagon-Like Peptide-2 Modulates Enteric Paneth Cells Immune Response and Alleviates Gut Inflammation During Intravenous Fluid Infusion in Mice With a Central Catheter
| Autor: | Xinying Wang, Huazhen Zheng, Guifang Deng, Qiucheng Lei, Yupeng Zhang, Jingcheng Bi, Xuejin Gao |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
endocrine system Endocrinology Diabetes and Metabolism Inflammation Ileum parenteral nutrition Occludin intestinal immunity Immune system Internal medicine medicine TX341-641 intravenous infusion Nutrition Original Research Nutrition and Dietetics Intestinal permeability business.industry Nutrition. Foods and food supply digestive oral and skin physiology Glucagon-like peptide-2 medicine.disease Paneth cells Small intestine Endocrinology Parenteral nutrition medicine.anatomical_structure glucagon-like peptide-2 inflammation medicine.symptom business Food Science |
| Zdroj: | Frontiers in Nutrition, Vol 8 (2021) Frontiers in Nutrition |
| DOI: | 10.3389/fnut.2021.688715/full |
| Popis: | Background: Glucagon-like peptide-2 (GLP-2) has protective effects on gastrointestinal functions. Our previous study found that GLP-2 could significantly reduce intestinal permeability and bacterial translocation in total parenteral nutrition (TPN) animal model. However, the effects of GLP-2 on the impairment of the intestinal Paneth cells immune function and gut inflammation during intravenous fluid infusion mainly consisted of nutritional materials is currently scattered.Objective: The current study was aimed to investigate the efficacy of the GLP-2 in alleviating gut inflammation and modulating enteric Paneth cells immune response in parenterally fed mice and its underlying mechanisms.Methods: Thirty-six male ICR mice underwent venous catheterization were divided into 3 groups: Chow, TPN, and TPN+GLP-2 groups. GLP-2 was administered intravenously at 60 μg/day for 5 days. The small intestine tissue and serum samples were collected on the 7th day.Results: Compared with the TPN group, the expression of tight junction proteins occludin and claudin-1 were significantly increased in the TPN+GLP-2 group. In addition, the expression of lysozyme, sPLA2, insulin-like growth factor-1, and epithelial protection and repair genes were improved in the TPN+GLP-2 group. The levels of IL-6 and TNF-α proteins and mRNAs in the ileum tissues were remarkably reduced in the TPN+GLP-2 group, while IL-10 protein and mRNA level were elevated in the TPN+GLP-2 group (all p < 0.05). Moreover, the TPN+GLP-2 group has higher levels of serum endotoxin, D-lactic acid, and MPO than those of the TPN group.Conclusions: GLP-2 alleviated gut inflammation and improved enteric Paneth cells immune responses through intravenous fluid infusion, possibly by improving the functioning of epithelial protection and repair, and reducing mucosal inflammatory responses. |
| Databáze: | OpenAIRE |
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