Antiviral activity of chrysin and naringenin against porcine epidemic diarrhea virus infection

Porcine epidemic diarrhea virus (PEDV) is one of the critical pathogens causing diarrhea in piglets and has caused huge economic losses to the swine industry in worldwide. However, there is currently no effective therapeutic medication available for the treatment of PEDV. Natural compounds are a hot...

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Main Authors: Mengfei Gong, Xuemei Xia, Dishi Chen, Yupeng Ren, Yutong Liu, Hua Xiang, Xiaohuan Li, Yupeng Zhi, Yu Mo
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-12-01
Series:Frontiers in Veterinary Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fvets.2023.1278997/full
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author Mengfei Gong
Xuemei Xia
Dishi Chen
Yupeng Ren
Yutong Liu
Hua Xiang
Xiaohuan Li
Yupeng Zhi
Yu Mo
author_facet Mengfei Gong
Xuemei Xia
Dishi Chen
Yupeng Ren
Yutong Liu
Hua Xiang
Xiaohuan Li
Yupeng Zhi
Yu Mo
author_sort Mengfei Gong
collection DOAJ
description Porcine epidemic diarrhea virus (PEDV) is one of the critical pathogens causing diarrhea in piglets and has caused huge economic losses to the swine industry in worldwide. However, there is currently no effective therapeutic medication available for the treatment of PEDV. Natural compounds are a hot topic for researching and screening antiviral lead compounds due to their abundant sources, varied activities, and low toxicity. In this study, a total of 6 compounds from different plant sources were selected for in vitro anti-PEDV screening, including chrysin, naringenin, soy isoflavone, glycyrrhetinic acid, oleanolic acid, and geniposide. Then two active compounds, chrysin and naringenin, were further evaluated on PEDV infected cells at different stage. And the anti-PEDV mechanism was analyzed by molecule docking and molecular dynamics. The results showed that both chrysin and naringenin showed the most significant anti-PEDV activity by increasing the cell viability and decreasing the virus copy number. Both natural compounds could inhibit viral titer, mRNA and protein levels in the prophylactic and post-viral entry stages of PEDV infection. Furthermore, chrysin and naringenin mainly interacted with viral replicase proteins such as 3CLpro and PLP-2 through hydrogen bonds and hydrophobic forces. The complexes formed by chrysin and naringenin with the two PEDV replication proteases had high stability. These results suggested that chrysin and naringenin may exert antiviral effects by interacting with the virus 3CLpro protein or PLP2 protein, thereby affecting their role in the formation of PEDV non-structural proteins or interfering with virus replication. This study lays the foundation for developing chrysin and naringenin as novel anti-PEDV therapeutic drugs.
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spelling doaj.art-887a6a92d200430f84b2a5bb99be7d1e2023-12-07T13:14:20ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692023-12-011010.3389/fvets.2023.12789971278997Antiviral activity of chrysin and naringenin against porcine epidemic diarrhea virus infectionMengfei Gong0Xuemei Xia1Dishi Chen2Yupeng Ren3Yutong Liu4Hua Xiang5Xiaohuan Li6Yupeng Zhi7Yu Mo8College of Animal Science and Veterinary Medicine, Southwest Minzu University, Chengdu, China,College of Animal Science and Veterinary Medicine, Southwest Minzu University, Chengdu, China,Center for Animal Disease Prevention and Control, Chengdu, ChinaCollege of Animal Science and Veterinary Medicine, Southwest Minzu University, Chengdu, China,College of Animal Science and Veterinary Medicine, Southwest Minzu University, Chengdu, China,College of Animal Science and Veterinary Medicine, Southwest Minzu University, Chengdu, China,Agricultural and Rural Bureau of Shizhong District, Leshan, ChinaCollege of Animal Science and Veterinary Medicine, Southwest Minzu University, Chengdu, China,College of Animal Science and Veterinary Medicine, Southwest Minzu University, Chengdu, China,Porcine epidemic diarrhea virus (PEDV) is one of the critical pathogens causing diarrhea in piglets and has caused huge economic losses to the swine industry in worldwide. However, there is currently no effective therapeutic medication available for the treatment of PEDV. Natural compounds are a hot topic for researching and screening antiviral lead compounds due to their abundant sources, varied activities, and low toxicity. In this study, a total of 6 compounds from different plant sources were selected for in vitro anti-PEDV screening, including chrysin, naringenin, soy isoflavone, glycyrrhetinic acid, oleanolic acid, and geniposide. Then two active compounds, chrysin and naringenin, were further evaluated on PEDV infected cells at different stage. And the anti-PEDV mechanism was analyzed by molecule docking and molecular dynamics. The results showed that both chrysin and naringenin showed the most significant anti-PEDV activity by increasing the cell viability and decreasing the virus copy number. Both natural compounds could inhibit viral titer, mRNA and protein levels in the prophylactic and post-viral entry stages of PEDV infection. Furthermore, chrysin and naringenin mainly interacted with viral replicase proteins such as 3CLpro and PLP-2 through hydrogen bonds and hydrophobic forces. The complexes formed by chrysin and naringenin with the two PEDV replication proteases had high stability. These results suggested that chrysin and naringenin may exert antiviral effects by interacting with the virus 3CLpro protein or PLP2 protein, thereby affecting their role in the formation of PEDV non-structural proteins or interfering with virus replication. This study lays the foundation for developing chrysin and naringenin as novel anti-PEDV therapeutic drugs.https://www.frontiersin.org/articles/10.3389/fvets.2023.1278997/fullporcine epidemic diarrhea virusnatural compoundschrysinnaringeninantiviral activity
spellingShingle Mengfei Gong
Xuemei Xia
Dishi Chen
Yupeng Ren
Yutong Liu
Hua Xiang
Xiaohuan Li
Yupeng Zhi
Yu Mo
Antiviral activity of chrysin and naringenin against porcine epidemic diarrhea virus infection
Frontiers in Veterinary Science
porcine epidemic diarrhea virus
natural compounds
chrysin
naringenin
antiviral activity
title Antiviral activity of chrysin and naringenin against porcine epidemic diarrhea virus infection
title_full Antiviral activity of chrysin and naringenin against porcine epidemic diarrhea virus infection
title_fullStr Antiviral activity of chrysin and naringenin against porcine epidemic diarrhea virus infection
title_full_unstemmed Antiviral activity of chrysin and naringenin against porcine epidemic diarrhea virus infection
title_short Antiviral activity of chrysin and naringenin against porcine epidemic diarrhea virus infection
title_sort antiviral activity of chrysin and naringenin against porcine epidemic diarrhea virus infection
topic porcine epidemic diarrhea virus
natural compounds
chrysin
naringenin
antiviral activity
url https://www.frontiersin.org/articles/10.3389/fvets.2023.1278997/full
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