Ameliorative Effects of Peptides Derived from Oyster (<i>Crassostrea gigas</i>) on Immunomodulatory Function and Gut Microbiota Structure in Cyclophosphamide-Treated Mice

The intestinal flora is recognized as a significant contributor to the immune system. In this research, the protective effects of oyster peptides on immune regulation and intestinal microbiota were investigated in mice treated with cyclophosphamide. The results showed that oyster peptides restored t...

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Main Authors: Xing-Wei Xiang, Hui-Zhen Zheng, Rui Wang, Hui Chen, Jin-Xing Xiao, Bin Zheng, Shu-Lai Liu, Yu-Ting Ding
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Marine Drugs
Subjects:
Online Access:https://www.mdpi.com/1660-3397/19/8/456
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author Xing-Wei Xiang
Hui-Zhen Zheng
Rui Wang
Hui Chen
Jin-Xing Xiao
Bin Zheng
Shu-Lai Liu
Yu-Ting Ding
author_facet Xing-Wei Xiang
Hui-Zhen Zheng
Rui Wang
Hui Chen
Jin-Xing Xiao
Bin Zheng
Shu-Lai Liu
Yu-Ting Ding
author_sort Xing-Wei Xiang
collection DOAJ
description The intestinal flora is recognized as a significant contributor to the immune system. In this research, the protective effects of oyster peptides on immune regulation and intestinal microbiota were investigated in mice treated with cyclophosphamide. The results showed that oyster peptides restored the indexes of thymus, spleen and liver, stimulated cytokines secretion and promoted the relative mRNA levels of Th1/Th2 cytokines (IL-2, IFN-γ, IL-4 and IL-10). The mRNA levels of Occludin, Claudin-1, ZO-1, and Mucin-2 were up-regulated, and the NF-κB signaling pathway was also activated after oyster peptides administration. Furthermore, oyster peptides treatment reduced the proportion of <i>Firmicutes</i>/<i>Bacteroidetes</i>, increased the relative abundance of <i>Alistipes</i>, <i>Lactobacillus</i>, <i>Rikenell</i> and the content of short-chain fatty acids, and reversed the composition of intestinal microflora similar to that of normal mice. In conclusion, oyster peptides effectively ameliorated cyclophosphamide-induced intestinal damage and modified gut microbiota structure in mice, and might be utilized as a beneficial ingredient in functional foods for immune regulation.
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spelling doaj.art-348c21a1e4e2409498114f1d952a23642023-11-22T08:25:58ZengMDPI AGMarine Drugs1660-33972021-08-0119845610.3390/md19080456Ameliorative Effects of Peptides Derived from Oyster (<i>Crassostrea gigas</i>) on Immunomodulatory Function and Gut Microbiota Structure in Cyclophosphamide-Treated MiceXing-Wei Xiang0Hui-Zhen Zheng1Rui Wang2Hui Chen3Jin-Xing Xiao4Bin Zheng5Shu-Lai Liu6Yu-Ting Ding7College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, ChinaOcean Research Center of Zhoushan, Zhejiang University, Zhoushan 316000, ChinaFood and Pharmacy College, Zhejiang Ocean University, Zhoushan 316000, ChinaCollege of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, ChinaCollege of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, ChinaThe intestinal flora is recognized as a significant contributor to the immune system. In this research, the protective effects of oyster peptides on immune regulation and intestinal microbiota were investigated in mice treated with cyclophosphamide. The results showed that oyster peptides restored the indexes of thymus, spleen and liver, stimulated cytokines secretion and promoted the relative mRNA levels of Th1/Th2 cytokines (IL-2, IFN-γ, IL-4 and IL-10). The mRNA levels of Occludin, Claudin-1, ZO-1, and Mucin-2 were up-regulated, and the NF-κB signaling pathway was also activated after oyster peptides administration. Furthermore, oyster peptides treatment reduced the proportion of <i>Firmicutes</i>/<i>Bacteroidetes</i>, increased the relative abundance of <i>Alistipes</i>, <i>Lactobacillus</i>, <i>Rikenell</i> and the content of short-chain fatty acids, and reversed the composition of intestinal microflora similar to that of normal mice. In conclusion, oyster peptides effectively ameliorated cyclophosphamide-induced intestinal damage and modified gut microbiota structure in mice, and might be utilized as a beneficial ingredient in functional foods for immune regulation.https://www.mdpi.com/1660-3397/19/8/456oyster (<i>Crassostrea gigas</i>)peptidescyclophosphamideimmunomodulatorygut microbiotashort-chain fatty acid
spellingShingle Xing-Wei Xiang
Hui-Zhen Zheng
Rui Wang
Hui Chen
Jin-Xing Xiao
Bin Zheng
Shu-Lai Liu
Yu-Ting Ding
Ameliorative Effects of Peptides Derived from Oyster (<i>Crassostrea gigas</i>) on Immunomodulatory Function and Gut Microbiota Structure in Cyclophosphamide-Treated Mice
Marine Drugs
oyster (<i>Crassostrea gigas</i>)
peptides
cyclophosphamide
immunomodulatory
gut microbiota
short-chain fatty acid
title Ameliorative Effects of Peptides Derived from Oyster (<i>Crassostrea gigas</i>) on Immunomodulatory Function and Gut Microbiota Structure in Cyclophosphamide-Treated Mice
title_full Ameliorative Effects of Peptides Derived from Oyster (<i>Crassostrea gigas</i>) on Immunomodulatory Function and Gut Microbiota Structure in Cyclophosphamide-Treated Mice
title_fullStr Ameliorative Effects of Peptides Derived from Oyster (<i>Crassostrea gigas</i>) on Immunomodulatory Function and Gut Microbiota Structure in Cyclophosphamide-Treated Mice
title_full_unstemmed Ameliorative Effects of Peptides Derived from Oyster (<i>Crassostrea gigas</i>) on Immunomodulatory Function and Gut Microbiota Structure in Cyclophosphamide-Treated Mice
title_short Ameliorative Effects of Peptides Derived from Oyster (<i>Crassostrea gigas</i>) on Immunomodulatory Function and Gut Microbiota Structure in Cyclophosphamide-Treated Mice
title_sort ameliorative effects of peptides derived from oyster i crassostrea gigas i on immunomodulatory function and gut microbiota structure in cyclophosphamide treated mice
topic oyster (<i>Crassostrea gigas</i>)
peptides
cyclophosphamide
immunomodulatory
gut microbiota
short-chain fatty acid
url https://www.mdpi.com/1660-3397/19/8/456
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