Oral delivery of miR-146a-5p overexpression plasmid-loaded Pickering double emulsion modulates intestinal inflammation and the gut microbe
文献类型： 外文期刊
作者： Zhu, Jiahao 1 ; Fan, Yaotian 1 ; Yang, Songfeng 1 ; Qin, Mengran 1 ; Chen, Xingping 2 ; Luo, Junyi 1 ; Chen, Ting 1 ; Sun, Jiajie 1 ; Zhang, Yongliang 1 ; Xi, Qianyun 1 ;
作者机构： 1.South China Agr Univ, Guangdong Prov Key Lab Anim Nutr Control, State Key Lab Livestock & Poultry Breeding, Natl Engn Res Ctr Breeding Swine Ind,Coll Anim Sci, 483 Wushan Rd, Guangzhou 510642, Peoples R China
2.Jiangxi Agr Univ, Key Lab Anim Nutr Jiangxi Prov, Nanchang, Peoples R China
关键词： Inflammatory injury; miR-146a-5p; Pickering double emulsion; Intestinal homeostasis; Lactobacillus reuteri
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.2； 五年影响因子：7.8 ）
ISSN： 0141-8130
年卷期： 2024 年 261 卷
页码：
收录情况： SCI
摘要： The function of miRNAs in intestinal inflammatory injury regulation has been studied extensively. However, the targeted delivery of these functional nucleic acid molecules to specific organs through encapsulation carriers and exerting their functional effects remain critical challenges for further research. Here, we constructed miR-146a5p overexpression plasmid and validated the anti-inflammatory properties in the cell model. Then, the plasmid was encapsulated by the Pickering double emulsion system to investigate the role of Pickering double emulsion system in LPS-induced acute intestinal inflammatory injury. The results showed that the Pickering double emulsion system could effectively protect the integrity of plasmids in the intestinal tract, alleviate intestinal inflammatory injury, and upregulate the relative abundance of Lactobacillus reuteri. Mechanically, in vivo and in vitro experiments have shown that miR-146a-5p inhibits TLR4/NF-kappa B pathway to alleviate intestinal inflammation. In addition, miR-146a-5p can also regulate intestinal homeostasis by targeting the RNA polymerase sigma factor RpoD and alpha-galactosidase A, thereby affecting the growth of Lactobacillus reuteri. Above all, this study reveals a potential mechanism for miR-146a-5p to treat intestinal inflammation and provides a new delivery strategy for miRNAs to regulate intestinal homeostasis.
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