4.7 Article

Plant miRNA bol-miR159 Regulates Gut Microbiota Composition in Mice: In Vivo Evidence of the Crosstalk between Plant miRNAs and Intestinal Microbes

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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 71, 期 43, 页码 16160-16173

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.3c06104

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bol-miR159; gut microbiota; 16S rRNA sequencing; intestinal flora homeostasis; cross-kingdom regulation

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New evidence suggests that the miRNA bol-miR159, commonly found in fruits and vegetables, has cross-kingdom functions in mammalian bodies. This study investigated the influence of miR159 on mouse intestinal microbes and found that it significantly enhanced the diversity of gut microbiota without causing any negative effects. The miRNA was also found to have prebiotic-like effects on beneficial bacteria, promoting their growth and potentially improving gut health. This study provides direct in vivo evidence of the crosstalk between plant miRNAs and intestinal microbes, highlighting the potential for miRNA-based strategies to modulate gut microbes and enhance overall host health.
New evidence reveals that bol-miR159, an miRNA rich in fruits and vegetables, cross-kingdomly functions in mammalian bodies. However, whether the miRNA could regulate gut microbiota remains unclear. Here, the effect of miR159 on mouse intestinal microbes was comprehensively examined. The results showed that supplementation of miR159 to the chow diet significantly enhanced the diversity of mouse gut microbiota without causing pathological lesions or inflammatory responses on the intestines. At the phylum level, miR159 increased the abundance of Proteobacteria and decreased the Firmicute-to-Bacteroidetes (F/B) ratio. miR159 had prebiotic-like effects on mouse gut microbiota, as it promoted the growth of the bacteria that is beneficial for maintaining gut health. The miRNA can target bacteria genes and get into the bacteria cells. The data provide direct in vivo evidence on the crosstalk between plant miRNAs and intestinal microbes, highlighting the potential for miRNA-based strategies that modulate gut microbes to improve host health.

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