Wheat peptide alleviates DSS-induced colitis by activating the Keap1-Nrf2 signaling pathway and maintaining the integrity of the gut barrier.
Wen-Yin XieZhong-Hao JiWen-Zhi RenPei-Sen ZhaoFan-Hao WeiJinPing HuBao YuanWei GaoPublished in: Food & function (2024)
Inflammatory bowel disease (IBD) is difficult to cure, and formulating a dietary plan is an effective means to prevent and treat this disease. Wheat peptide contains a variety of bioactive peptides with anti-inflammatory and antioxidant functions. The results of this study showed that preventive supplementation with wheat peptide (WP) can significantly alleviate the symptoms of dextran sulfate sodium (DSS)-induced colitis in mice. WP can increase body weight, alleviate colon shortening, and reduce disease activity index (DAI) scores. In addition, WP improved intestinal microbial disorders in mice with colitis. Based on LC-MS, a total of 313 peptides were identified in WP, 4 of which were predicted to be bioactive peptides. The regulatory effects of WP and four bioactive peptides on the Keap1-Nrf2 signaling pathway were verified in Caco-2 cells. In conclusion, this study demonstrated that WP alleviates DSS-induced colitis by helping maintain gut barrier integrity and targeting the Keap1-Nrf2 axis; these results provided a rationale for adding WP to dietary strategies to prevent IBD.
Keyphrases
- signaling pathway
- oxidative stress
- induced apoptosis
- disease activity
- body weight
- anti inflammatory
- rheumatoid arthritis
- systemic lupus erythematosus
- pi k akt
- amino acid
- epithelial mesenchymal transition
- rheumatoid arthritis patients
- transcription factor
- mouse model
- protein protein
- cell cycle arrest
- high fat diet induced
- small molecule
- cell death
- microbial community
- depressive symptoms
- juvenile idiopathic arthritis