数字农科院2.0

Significant Interference With Porcine Epidemic Diarrhea Virus Pandemic And Classical Strain Replication In Small-Intestine Epithelial Cells Using An Shrna Expression Vector

文献类型： 外文期刊

作者： Shi, D; Wang, XB; Shi, HY; Zhang, JY; Han, YR; Chen, JF; Zhang, X; Liu, JB; Zhang, JL; Ji, ZY; Jing, ZY; Feng, L

作者机构：

关键词： Porcine Epidemic Diarrhea Virus; Rna Interference; Processivity Factor; Intestine Epithelial Cells; N Gene

期刊名称： VACCINES

ISSN：

年卷期： 2019 年 7 卷 4 期

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收录情况： JCR（2021版）

摘要： Porcine epidemic diarrhea (PED) re-emerged in China in 2010 and is now widespread. Evidence indicates that highly virulent porcine epidemic diarrhea virus (PEDV) strains belonging to genotype G2 caused a large-scale outbreak of diarrhea. Currently, vaccines derived from PEDV classical strains do not effectively prevent infection by virulent PEDV strains, and no specific drug is available to treat the disease. RNA interference (RNAi) is a novel and effective way to cure a wide range of viruses. We constructed three short hairpin RNA (shRNA)-expressing plasmids (shR-N307, shR-N463, and shR-N1071) directed against nucleocapsid (N) and determined their antiviral activities in intestine epithelial cells infected with a classical CV777 strain and LNCT2. We verified that shR-N307, shR-N463, and shR-N1071 effectively inhibited the expression of the transfected N gene in vitro, comparable to the control shRNA. We further demonstrated the shRNAs markedly reduced PEDV CV777 and LNCT2 replication upon downregulation of N production. Therefore, this study provides a new strategy for the design of antiviral methods against coronaviruses by targeting their processivity factors.

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