期刊
ANTIOXIDANTS
卷 11, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/antiox11071384
关键词
chitosan oligosaccharide; lipopolysaccharide; intestinal barrier function; inflammation; oxidative stress; mice
资金
- National Key Research and Development Program of China [2018YFE0112700]
- Open Project of Key Laboratory of Molecular Animal Nutrition of Ministry of Education, Zhejiang University [KLMAN202001]
This study demonstrates that chitosan oligosaccharide (COS) has a protective effect against lipopolysaccharide (LPS)-induced intestinal injury. COS improves the mucosal morphology and tight junction protein expressions, increases goblet cells number and mucin expression, up-regulates antimicrobial peptide expressions, decreases pro-inflammatory cytokine production and neutrophil recruitment, and ameliorates intestinal oxidative stress. The beneficial effects of COS on intestinal barrier function are associated with its anti-inflammatory activities and antioxidant capacity.
This study was conducted to investigate the protective effect of chitosan oligosaccharide (COS) against lipopolysaccharide (LPS)-induced intestinal injury. The results demonstrated that COS improved the mucosal morphology of the jejunum and colon in LPS-challenged mice. COS alleviated the LPS-induced down-regulation of tight junction protein expressions and reduction of goblet cells number and mucin expression. The mRNA expressions of anti-microbial peptides secreted by the intestinal cells were also up-regulated by COS. Additionally, COS decreased pro-inflammatory cytokine production and neutrophil recruitment in the jejunum and colon of LPS-treated mice. COS ameliorated intestinal oxidative stress through up-regulating the mRNA expressions of nuclear factor E2-related factor 2 and downstream antioxidant enzymes genes. Correlation analysis indicated that the beneficial effects of COS on intestinal barrier function were associated with its anti-inflammatory activities and antioxidant capacity. Our study provides evidence for the application of COS to the prevention of intestinal barrier dysfunction caused by the stress of a LPS challenge.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据