Fangchinoline inhibits the PEDV replication in intestinal epithelial cells via autophagic flux suppression
文献类型： 外文期刊
作者： Zhang, Weixiao 1 ; Shen, Haiyan 2 ; Wang, Menglu 1 ; Fan, Xuelei 1 ; Wang, Songqi 1 ; Wuri, Nile 2 ; Zhang, Bin 2 ; He, Haiyan 2 ; Zhang, Chunhong 2 ; Liu, Zhicheng 2 ; Liao, Ming 2 ; Zhang, Jianfeng 2 ; Li, Yugu 1 ; Zhang, Jianmin 1 ;
作者机构： 1.South China Agr Univ, Coll Vet Med, Guangzhou, Peoples R China
2.Inst Anim Hlth, Guangdong Acad Agr Sci, Key Lab Livestock Dis Prevent Guangdong Prov, Sci Observat & Expt Stn Vet Drugs & Diagnost Tech, Guangzhou, Peoples R China
3.Maoming Branch Ctr, Guangdong Lab Lingnan Modern Agr Sci & Technol, Guangzhou, Peoples R China
4.Inner Mongolia Agr Univ, Coll Vet Med, Hohhot, Peoples R China
关键词： porcine epidemic diarrhea virus; fangchinoline; antiviral agent; autophagy; replication
期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：5.2； 五年影响因子：6.2 ）
ISSN：
年卷期： 2023 年 14 卷
页码：
收录情况： SCI
摘要： Animal and human health are severely threatened by coronaviruses. The enteropathogenic coronavirus, porcine epidemic diarrhea virus (PEDV), is highly contagious, leading to porcine epidemic diarrhea (PED), which causes large economic losses in the world's swine industry. Piglets are not protected from emerging PEDV variants; therefore, new antiviral measures for PED control are urgently required. Herein, the anti-PEDV effects and potential mechanisms of fangchinoline (Fan) were investigated. Fan dose-dependently inhibited a PEDV infection at 24 h post-infection (EC50 value = 0.67 & mu;M). We found that Fan mainly affected the PEDV replication phase but also inhibited PEDV at the attachment and internalization stages of the viral life cycle. Mechanistically, Fan blocked the autophagic flux in PEDV-infected cells by regulating the expression of autophagy-related proteins and changing PEDV virus particles. In summary, Fan inhibits PEDV infection by blocking the autophagic flux in cells. Our findings will help develop new strategies to prevent and treat PEDV infection.
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