Promotive effects of sesamin on proliferation and adhesion of intestinal probiotics and its mechanism of action.
2021
ABSTRACT The effect of sesamin on intestinal flora was studied by in vitro animal fecal anaerobic fermentation system, and were analyzed by 16S rDNA sequencing. Results showed that sesamin modulated the composition of intestinal microorganisms and reshaped gut microbiome. The abundance of probiotics Lactobacillaceae and Bifidobacteriaceae increased, while the abundance of Enterobacteriaceae decreased. The properties of probiotics (Bifidobacterium bifidum and Lactophilus acidophilus) adhesion to epithelial colon cells (NCM460) were assessed by gram staining and plate counting methods. Results showed that sesamin increased the adhesive index of probiotics. Analysis of RT-qPCR, Western blot and immunofluorescence staining indicated that sesamin up-regulated the expression of the adhesive protein (β-cadherin and E-cadherin) of NCM460 cells. In conclusion, sesamin could promote the proliferation and adhesion of intestinal probiotics leading to modulating gut microbiota, which provided basis for sesamin as a food-borne functional factor for improving intestinal health.
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