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Wu Q, Liu X, Wang J, Xu S, Zeng F, Chen L, Zhang G, Wang H. An isothermal nucleic acid amplification-based enzymatic recombinase amplification method for dual detection of porcine epidemic diarrhea virus and porcine rotavirus A. Virology 2024; 594:110062. [PMID: 38522136 DOI: 10.1016/j.virol.2024.110062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/06/2024] [Accepted: 03/14/2024] [Indexed: 03/26/2024]
Abstract
Viral diarrhea is the predominant digestive tract sickness in piglings, resulting in substantial profit losses in the porcine industry. Porcine rotavirus A (PoRVA) and porcine epidemic diarrhea virus (PEDV) are the main causes of grave gastroenteritis and massive dysentery, especially in piglets. PoRVA and PEDV have high transmissibility, exhibit similar clinical symptoms, and frequently co-occur. Therefore, to avoid financial losses, a quick, highly efficient, objective diagnostic test for the prevention and detection of these diseases is required. Enzymatic recombinase amplification (ERA) is a novel technology based on isothermal nucleic acid amplification. It demonstrates high sensitivity and excellent specificity, with a short processing time and easy operability, compared with other in vitro nucleic acid amplification technologies. In this study, a dual ERA method to detect and distinguish between PEDV and PoRVA nucleic acids was established. The method shows high sensitivity, as the detection limits were 101 copies/μL for both viruses. To test the usefulness of this method in clinical settings, we tested 64 swine clinical samples. Our results were 100% matched with those acquired using a commercially available kit. Therefore, we have successfully developed a dual diagnostic ERA nucleic acids method for detecting and distinguishing between PEDV and PoRVA.
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Affiliation(s)
- Qianwen Wu
- Guangdong Provincial Key Laboratory of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510462, China
| | - Xing Liu
- Guangdong Provincial Key Laboratory of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510462, China
| | - Jingyu Wang
- Guangdong Provincial Key Laboratory of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510462, China
| | - Sijia Xu
- Guangdong Provincial Key Laboratory of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510462, China
| | - Fanliang Zeng
- Guangdong Provincial Key Laboratory of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510462, China
| | - Ling Chen
- Ganzhou Quannan County Agriculture and Rural Bureau, Ganzhou, 341800, China
| | - Guihong Zhang
- Guangdong Provincial Key Laboratory of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510462, China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, 525000, China; National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, 510642, China.
| | - Heng Wang
- Guangdong Provincial Key Laboratory of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510462, China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, 525000, China; National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, 510642, China.
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Liang J, Xu W, Gou F, Qin L, Yang H, Xiao J, Li L, Zhang W, Peng D. Antiviral activity of flavonol against porcine epidemic diarrhea virus. Virology 2024; 597:110128. [PMID: 38861876 DOI: 10.1016/j.virol.2024.110128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/20/2024] [Accepted: 05/30/2024] [Indexed: 06/13/2024]
Abstract
Porcine epidemic diarrhea virus (PEDV) remains one of the major causative microorganisms of viral diarrhea in piglets worldwide, with no approved drugs for treatment. We identified a natural molecule, flavonol, which is widely found in tea, vegetables and herbs. Subsequently, the antiviral activity of compound flavonol was evaluated in Vero cells and IPEC-J2 cells, and its anti-PEDV mechanism was analyzed by molecular docking and molecular dynamics. The results showed that flavonol could effectively inhibit viral progeny production, RNA synthesis and protein expression of PEDV strains in a dose-dependent manner. When flavonol was added simultaneously with viral infection in Vero cells, it demonstrated potent anti-PEDV activity by affecting the viral attachment and internalization phases. Similarly, in IPEC-J2 cells, flavonol effectively inhibited PEDV infection at different stages of infection, except for the release phase. Moreover, flavonol mainly interacts with PEDV Mpro through hydrogen bonds and hydrophobic forces, and the complex formed by it has high stability. Importantly, flavonol also showed broad-spectrum activity against other porcine enteric coronaviruses such as TGEV and PDCoV in vitro. These findings suggest that flavonol may exert antiviral effects by interacting with viral Mpro, thereby affecting viral replication. This means that flavonol is expected to become a potential drug to prevent or treat porcine enteric coronavirus.
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Affiliation(s)
- Jixiang Liang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China; National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Weihang Xu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Fang Gou
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Liangni Qin
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China; National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Hongfei Yang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China; National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Jiaxu Xiao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China; National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Long Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China; National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Wanpo Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China.
| | - Dapeng Peng
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China; National Reference Laboratory of Veterinary Drug Residues (HZAU) and MOA Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China; Hubei Jiangxia Laboratory, Wuhan, Hubei, 430200, People's Republic of China.
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Lu Y, Yu R, Tong L, Zhang L, Zhang Z, Pan L, Wang Y, Guo H, Hu Y, Liu X. Transcriptome Analysis of LLC-PK Cells Single or Coinfected with Porcine Epidemic Diarrhea Virus and Porcine Deltacoronavirus. Viruses 2023; 16:74. [PMID: 38257774 PMCID: PMC10818665 DOI: 10.3390/v16010074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 01/24/2024] Open
Abstract
Porcine epidemic diarrhea virus (PEDV) and porcine deltacoronavirus (PDCoV) are the two most prevalent swine enteric coronaviruses worldwide. They commonly cause natural coinfections, which worsen as the disease progresses and cause increased mortality in piglets. To better understand the transcriptomic changes after PEDV and PDCoV coinfection, we compared LLC porcine kidney (LLC-PK) cells infected with PEDV and/or PDCoV and evaluated the differential expression of genes by transcriptomic analysis and real-time qPCR. The antiviral efficacy of interferon-stimulated gene 20 (ISG20) against PDCoV and PEDV infections was also assessed. Differentially expressed genes (DEGs) were detected in PEDV-, PDCoV-, and PEDV + PDCoV-infected cells at 6, 12, and 24 h post-infection (hpi), and at 24 hpi, the number of DEGs was the highest. Furthermore, changes in the expression of interferons, which are mainly related to apoptosis and activation of the host innate immune pathway, were found in the PEDV and PDCoV infection and coinfection groups. Additionally, 43 ISGs, including GBP2, IRF1, ISG20, and IFIT2, were upregulated during PEDV or PDCoV infection. Furthermore, we found that ISG20 significantly inhibited PEDV and PDCoV infection in LLC-PK cells. The transcriptomic profiles of cells coinfected with PEDV and PDCoV were reported, providing reference data for understanding the host response to PEDV and PDCoV coinfection.
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Affiliation(s)
- Yanzhen Lu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (Y.L.)
- State Key Laboratory for Animal Disease Control and Prevention, OIE/National Foot-and-Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China (L.P.)
| | - Ruiming Yu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (Y.L.)
- State Key Laboratory for Animal Disease Control and Prevention, OIE/National Foot-and-Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China (L.P.)
| | - Lixin Tong
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (Y.L.)
- State Key Laboratory for Animal Disease Control and Prevention, OIE/National Foot-and-Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China (L.P.)
| | - Liping Zhang
- State Key Laboratory for Animal Disease Control and Prevention, OIE/National Foot-and-Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China (L.P.)
| | - Zhongwang Zhang
- State Key Laboratory for Animal Disease Control and Prevention, OIE/National Foot-and-Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China (L.P.)
| | - Li Pan
- State Key Laboratory for Animal Disease Control and Prevention, OIE/National Foot-and-Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China (L.P.)
| | - Yonglu Wang
- State Key Laboratory for Animal Disease Control and Prevention, OIE/National Foot-and-Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China (L.P.)
| | - Huichen Guo
- State Key Laboratory for Animal Disease Control and Prevention, OIE/National Foot-and-Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China (L.P.)
| | - Yonghao Hu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (Y.L.)
| | - Xinsheng Liu
- State Key Laboratory for Animal Disease Control and Prevention, OIE/National Foot-and-Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China (L.P.)
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