期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 24, 期 22, 页码 -出版社
MDPI
DOI: 10.3390/ijms242216031
关键词
inflammatory bowel disease; flavonoids; synergy
This study investigates the protective effect of a flavonoid combination of apigenin and EGCG on inflammatory bowel disease (IBD). The results show that the flavonoid-treated group exhibited increased barrier function of the intestinal epithelium in vitro and significantly attenuated inflammatory levels in vivo. In addition, flavonoids positively modulated the composition of the gut microbiota in the colon.
Inflammatory bowel disease (IBD) is an autoimmune disease that leads to severe bowel symptoms and complications. Currently, there is no effective treatment, and the exact cause of IBD remains unclear. In the last decades, numerous studies have confirmed that flavonoids can have a positive impact on the treatment of IBD. Therefore, this study investigated the protective effect of a flavonoid combination of apigenin and epigallocatechin-3-gallate (EGCG) on IBD. In vitro studies in which Caco-2 cell monolayers were incubated with different concentrations of flavonoids found that the flavonoid-treated group exhibited increased transepithelial electrical resistance (TEER) at high concentrations, indicating a protective effect on the barrier function of the intestinal epithelium. In vivo studies showed that flavonoids significantly attenuated inflammatory levels in both chronic and acute hapten-mediated experimental colitis models in a time- and dose-dependent manner. In addition, the activity of myeloperoxidase (MPO) and the level of proinflammatory cytokines in the colon tissue were significantly reduced. Interestingly, the levels of anti-inflammatory cytokines were also dramatically increased. Finally, flavonoids were found to positively modulate the composition of the gut microbiota in the colon. Therefore, a combination of flavonoids could be a promising therapeutic agent for the future adjunctive treatment of IBD.
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