1. The anti-inflammatory activity of peptides from simulated gastrointestinal digestion of preserved egg white in DSS-induced mouse colitis
- Author
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Mengya Zhang, Yao Yao, Huaying Du, Mingsheng Xu, Na Wu, Yonggang Tu, and Yan Zhao
- Subjects
0301 basic medicine ,medicine.drug_class ,Interleukin-1beta ,Anti-Inflammatory Agents ,Spleen ,Pharmacology ,Inflammatory bowel disease ,Anti-inflammatory ,Muscle hypertrophy ,Mice ,03 medical and health sciences ,0302 clinical medicine ,Egg White ,Gene expression ,medicine ,Animals ,Humans ,Colitis ,Ovum ,Mice, Inbred BALB C ,Tumor Necrosis Factor-alpha ,business.industry ,Dextran Sulfate ,General Medicine ,Inflammatory Bowel Diseases ,medicine.disease ,Disease Models, Animal ,Ducks ,030104 developmental biology ,medicine.anatomical_structure ,Cytokines ,Digestion ,Female ,030211 gastroenterology & hepatology ,Caco-2 Cells ,Peptides ,business ,Food Science ,Egg white - Abstract
Peptides DEDTQAMPFR (DR-10), MLGATSL (ML-7), SLSFASR (SR-7), and MSYSAGF (MF-7) derived from simulated gastrointestinal digestion of preserved egg white (SGD-PEW) exerted anti-inflammatory effects on Caco-2 cells. Here, we aimed to evaluate the anti-inflammatory effects of these peptides derived from SGD-PEW in a mouse model of dextran sodium sulfate (DSS)-induced colitis. The results showed that DR-10, ML-7, SR-7 and MF-7 significantly ameliorated the clinical symptoms of DSS-induced mice colitis, such as weight loss, disease activity index (DAI), colon shortening, spleen hypertrophy and histological scores. Treatment with DR-10, ML-7, SR-7 and MF-7 also significantly inhibited the local secretion of pro-inflammatory cytokines TNF-α and IL-6 and markedly decreased the gene expression of pro-inflammatory cytokines, including TNF-α, IL-6, IL-17, IL-1β, IFN-γ and MCP-1, in DSS-induced mice colitis. Overall, MF-7 showed the best effect of alleviating DSS-induced colitis among the four peptides. These results suggested that MF-7, DR-10, ML-7 and SR-7 may be a potential promising candidate for the treatment of inflammatory bowel disease (IBD).
- Published
- 2018