Plant MIR156 regulates intestinal growth in mammals by targeting the Wnt/beta-catenin pathway
文献类型： 外文期刊
作者： Li, Meng 1 ; Chen, Ting 1 ; Wang, Ran 2 ; Luo, Jun-Yi 1 ; He, Jia-Jian 1 ; Ye, Rui-Song 1 ; Xie, Mei-Ying 1 ; Xi, Qian-Yu 1 ;
作者机构： 1.South China Agr Univ, Guangdong Prov Key Lab Agroanim Genom & Mol Breed, Guangdong Prov Key Lab Anim Nutr Regulat, Coll Anim Sci,Natl Engn Res Ctr Breeding Swine In, Guangzhou, Guangdong, Peoples R China
2.South China Agr Univ, Coll Forestry & Landscape Architecture, Guangzhou, Guangdong, Peoples R China
关键词： intestine; MIR156; proliferation; Wnt
期刊名称：AMERICAN JOURNAL OF PHYSIOLOGY-CELL PHYSIOLOGY （ 影响因子：4.249； 五年影响因子：4.627 ）
ISSN： 0363-6143
年卷期： 2019 年 317 卷 3 期
页码：
收录情况： SCI
摘要： MicroRNAs (miRNAs) are important negative regulators of genes involved in physiological and pathological processes in plants and animals. Recent studies have shown that miRNAs might regulate gene expression among different species in a cross-kingdom manner. However, the specific roles of plant miRNAs in animals remain poorly understood and somewhat. Herein, we found that plant MIR156 regulates proliferation of intestinal cells both in vitro and in vivo. Continuous administration of a high plant miRNA diet or synthetic MIR156 elevated MIR156 levels and inhibited the Wnt/beta-catenin signaling pathway in mouse intestine. Bioinformatics predictions and luciferase reporter assays indicated that MIR156 targets Wnt10b. In vitro, MIR156 suppressed proliferation by downregulating the Wnt10b protein and upregulating beta-catenin phosphorylation in the porcine jejunum epithelial (IPEC-J2) cell line. Lithium chloride and an MIR156 inhibitor relieved this inhibition. This research is the first to demonstrate that plant MIR156 inhibits intestinal cell proliferation by targeting Wnt10b. More importantly, plant miRNAs may represent a new class of bioactive molecules that act as epigenetic regulators in humans and other animals.
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