期刊
JOURNAL OF NUTRITIONAL BIOCHEMISTRY
卷 63, 期 -, 页码 44-53出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jnutbio.2018.09.019
关键词
Peptide; Simulated gastrointestinal digest; Preserved egg white; Anti-inflammatory; Caco-2 cell; Signaling pathway
资金
- Program of Natural Science Foundation of Jiangxi Province, China [20171BAB204027]
- Science Fund for Distinguished Young Scholars of Jiangxi Province, China [2018ACB21031]
- Key Research and Development Project of Jiangxi Province, China [20171BBF60038]
- Outstanding Youth Talent Funded Project of Jiangxi Province, China [20162BCB23031]
- Science and Technology Project of Jiangxi Province, China [20151BBF60022]
- Young Scientist Training Objects Program of Jiangxi Province, China [20153BCB23028]
Simulated gastrointestinal digestion of preserved egg white (SGD-PEW) exerts anti-inflammatory effects on Caco-2 cells and a mouse model of DSS-induced colitis. Here, we aimed to separate peptides derived from SGD-PEW and evaluate their anti-inflammatory effects using an in vitro inflammatory model. Six peptides were isolated and identified. DEDTQAMPFR (DR-10), DEDTQAMPF (DF-9), MLGATSL (ML-7) and MSYSAGF (MF-7) significantly inhibited IL-8 secretion and markedly decreased gene expression, including TNF-alpha, IL-8, IL-6, IL-1 beta and IL-12 and promoted 1L-10 gene expression in Caco-2 cells. DR-10, DF-9, ML-7 and MF-7 significantly inhibited the phosphorylation of JNK. In the meantime, DR-10 and DF-9 significantly reduced the phosphorylation of IKB and p38. These results indicated that ML-7 and MF-7 exerted their anti-inflammatory activity through the MAPK signaling pathway in TNF-alpha-induced Caco-2 cells. Whereas, DR-10 and DF-9 inhibited the NF-kappa B and MAPK signaling pathways. The results suggested that DR-10, DF-9, ML-7 and MF-7 derived from SGD-PEW may be a new type of prophylactic food for the treatment of inflammation. (C) 2018 Elsevier Inc. All rights reserved.
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