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Hu Y, Li Y, Zhu H, Wang D, Zhou J, Ni Y, Guo R, Fan B, Li B. In vitro suppression of porcine epidemic diarrhea virus by Panax notoginseng saponins: assessing antiviral potential. Arch Virol 2024; 169:89. [PMID: 38565720 DOI: 10.1007/s00705-024-06020-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 02/12/2024] [Indexed: 04/04/2024]
Abstract
Porcine epidemic diarrhea virus (PEDV) causes severe diarrhea and high mortality in neonatal suckling piglets, leading to significant economic losses to the swine industry. Panax notoginseng saponins (PNS) are bioactive extracts derived from the P. notoginseng plant. In this study, we investigated the anti-PEDV effect of PNS by employing various methodologies to assess their impact on PEDV in Vero cells. Using a CCK-8 (Cell Counting Kit-8) assay, we found that PNS had no significant cytotoxicity below the concentration of 128 µg/mL in Vero cells. Using immunofluorescence assays (IFAs), an enzyme-linked immunosorbent assay (ELISA), and plaque formation assays, we observed a dose-dependent inhibition of PEDV infection by PNS within 24-48 hours postinfection. PNS exerts its anti-PEDV activity specifically at the genome replication stage, and mRNA-seq analysis demonstrated that treatment with PNS resulted in increased expression of various genes, including IFIT1 (interferon-induced protein with tetratricopeptide repeats 1), IFIT3 (interferon-induced protein with tetratricopeptide repeats 3), CFH (complement factor H), IGSF10 (immunoglobulin superfamily member 10), ID2 (inhibitor of DNA binding 2), SPP1 (secreted phosphoprotein 1), PLCB4 (phospholipase C beta 4), and FABP4 (fatty acid binding protein 4), but it resulted in decreased expression of IL1A (interleukin 1 alpha), TNFRSF19 (TNF receptor superfamily member 19), CDH8 (cadherin 8), DDIT3 (DNA damage inducible transcript 3), GADD45A (growth arrest and DNA damage inducible alpha), PTPRG (protein tyrosine phosphatase receptor type G), PCK2 (phosphoenolpyruvate carboxykinase 2), and ADGRA2 (adhesion G protein-coupled receptor A2). This study provides insights into the potential mechanisms underlying the antiviral effects of PNS. Taken together, the results suggest that the PNS might effectively regulate the defense response to the virus and have potential to be used in antiviral therapies.
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Affiliation(s)
- Yiyi Hu
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonose, Yangzhou University, 225009, Yangzhou, China
- GuoTai (Taizhou) Center of Technology Innovation for Veterinary Biologicals, 225300, Taizhou, China
| | - Yunchuan Li
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonose, Yangzhou University, 225009, Yangzhou, China
- GuoTai (Taizhou) Center of Technology Innovation for Veterinary Biologicals, 225300, Taizhou, China
| | - Haodan Zhu
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonose, Yangzhou University, 225009, Yangzhou, China
- GuoTai (Taizhou) Center of Technology Innovation for Veterinary Biologicals, 225300, Taizhou, China
| | - Dandan Wang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonose, Yangzhou University, 225009, Yangzhou, China
- GuoTai (Taizhou) Center of Technology Innovation for Veterinary Biologicals, 225300, Taizhou, China
| | - Junming Zhou
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonose, Yangzhou University, 225009, Yangzhou, China
- GuoTai (Taizhou) Center of Technology Innovation for Veterinary Biologicals, 225300, Taizhou, China
| | - Yanxiu Ni
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonose, Yangzhou University, 225009, Yangzhou, China
- GuoTai (Taizhou) Center of Technology Innovation for Veterinary Biologicals, 225300, Taizhou, China
| | - Rongli Guo
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonose, Yangzhou University, 225009, Yangzhou, China
- GuoTai (Taizhou) Center of Technology Innovation for Veterinary Biologicals, 225300, Taizhou, China
| | - Baochao Fan
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonose, Yangzhou University, 225009, Yangzhou, China
- GuoTai (Taizhou) Center of Technology Innovation for Veterinary Biologicals, 225300, Taizhou, China
| | - Bin Li
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China.
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonose, Yangzhou University, 225009, Yangzhou, China.
- GuoTai (Taizhou) Center of Technology Innovation for Veterinary Biologicals, 225300, Taizhou, China.
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Gupta A, Yadav K, Yadav A, Ahmad R, Srivastava A, Kumar D, Khan MA, Dwivedi UN. Mannose-specific plant and microbial lectins as antiviral agents: A review. Glycoconj J 2024; 41:1-33. [PMID: 38244136 DOI: 10.1007/s10719-023-10142-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/19/2023] [Accepted: 12/06/2023] [Indexed: 01/22/2024]
Abstract
Lectins are non-immunological carbohydrate-binding proteins classified on the basis of their structure, origin, and sugar specificity. The binding specificity of such proteins with the surface glycan moiety determines their activity and clinical applications. Thus, lectins hold great potential as diagnostic and drug discovery agents and as novel biopharmaceutical products. In recent years, significant advancements have been made in understanding plant and microbial lectins as therapeutic agents against various viral diseases. Among them, mannose-specific lectins have being proven as promising antiviral agents against a variety of viruses, such as HIV, Influenza, Herpes, Ebola, Hepatitis, Severe Acute Respiratory Syndrome Coronavirus-1 (SARS-CoV-1), Middle Eastern Respiratory Syndrome Coronavirus (MERS-CoV) and most recent Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2). The binding of mannose-binding lectins (MBLs) from plants and microbes to high-mannose containing N-glycans (which may be simple or complex) of glycoproteins found on the surface of viruses has been found to be highly specific and mainly responsible for their antiviral activity. MBLs target various steps in the viral life cycle, including viral attachment, entry and replication. The present review discusses the brief classification and structure of lectins along with antiviral activity of various mannose-specific lectins from plants and microbial sources and their diagnostic and therapeutic applications against viral diseases.
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Affiliation(s)
- Ankita Gupta
- Department of Biochemistry, University of Lucknow, Lucknow, Uttar Pradesh, India
| | - Kusum Yadav
- Department of Biochemistry, University of Lucknow, Lucknow, Uttar Pradesh, India.
| | - Anurag Yadav
- Department of Microbiology, C.P. College of Agriculture, Sardarkrushinagar Dantiwada Agriculture University, District-Banaskantha, Gujarat, India
| | - Rumana Ahmad
- Department of Biochemistry, Era's Lucknow Medical College and Hospital, Era University, Lucknow, Uttar Pradesh, India.
| | - Aditi Srivastava
- Department of Biochemistry, Era's Lucknow Medical College and Hospital, Era University, Lucknow, Uttar Pradesh, India
| | - Dileep Kumar
- Department of Biochemistry, University of Lucknow, Lucknow, Uttar Pradesh, India
- Department of Biotechnology, Khwaja Moinuddin Chishti Language University, Lucknow, Uttar Pradesh, India
| | - Mohammad Amir Khan
- Department of Biochemistry, Era's Lucknow Medical College and Hospital, Era University, Lucknow, Uttar Pradesh, India
| | - U N Dwivedi
- Department of Biochemistry, University of Lucknow, Lucknow, Uttar Pradesh, India
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Yang S, Huang X, Li S, Wang C, Jansen CA, Savelkoul HFJ, Liu G. Linoleic acid: a natural feed compound against porcine epidemic diarrhea disease. J Virol 2023; 97:e0170023. [PMID: 38009930 PMCID: PMC10734519 DOI: 10.1128/jvi.01700-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/29/2023] Open
Abstract
IMPORTANCE Porcine epidemic diarrhea virus (PEDV) is a pig coronavirus that causes severe diarrhea and high mortality in piglets, but as no effective drugs are available, this virus threatens the pig industry. Here, we found that the intestinal contents of specific pathogen-free pigs effectively blocked PEDV invasion. Through proteomic and metabolic analyses of the intestinal contents, we screened 10 metabolites to investigate their function and found that linoleic acid (LA) significantly inhibited PEDV replication. Further investigations revealed that LA inhibited viral replication and release mainly by binding with PEDV NSP5 to regulate the PI3K pathway and, in particular, inhibiting AKT phosphorylation. In vivo experiments illustrated that orally administered LA protected pigs from PEDV challenge and severe diarrhea. These findings provide strong support for exploring antiviral drugs for coronavirus treatment.
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Affiliation(s)
- Shanshan Yang
- State Key Laboratory of Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Lanzhou, China
- Cell Biology and Immunology Group, Wageningen University and Research, Wageningen, the Netherlands
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - Xin Huang
- State Key Laboratory of Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Lanzhou, China
| | - Shuxian Li
- State Key Laboratory of Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Lanzhou, China
- College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi, China
| | - Caiying Wang
- State Key Laboratory of Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Lanzhou, China
- Cell Biology and Immunology Group, Wageningen University and Research, Wageningen, the Netherlands
| | - Christine A. Jansen
- Cell Biology and Immunology Group, Wageningen University and Research, Wageningen, the Netherlands
| | - Huub F. J. Savelkoul
- Cell Biology and Immunology Group, Wageningen University and Research, Wageningen, the Netherlands
| | - Guangliang Liu
- State Key Laboratory of Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Lanzhou, China
- College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi, China
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Hao K, Wang Y, Xu JH, Nie C, Song S, Yu F, Zhao Z. Kaempferol is a novel antiviral agent against channel catfish virus infection through blocking viral attachment and penetration in vitro. Front Vet Sci 2023; 10:1323646. [PMID: 38111732 PMCID: PMC10725991 DOI: 10.3389/fvets.2023.1323646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 11/13/2023] [Indexed: 12/20/2023] Open
Abstract
Channel catfish virus (CCV, Ictalurid herpesvirus 1) is the causative pathogen of channel catfish virus disease, which has caused high mortality and substantial economic losses in the catfish aquaculture industry. Due to the lack of licensed prophylactic vaccines and therapeutic drugs, the prevention and control of CCV infection seem to remain stagnant. Active compounds from medicinal plants offer eligible sources of pharmaceuticals and lead drugs to fight against endemic and pandemic diseases and exhibit excellent effect against viral infection. In this study, we evaluated the antiviral ability of 12 natural compounds against CCV with cell models in vitro and found kaempferol exhibited the strongest inhibitory compound against CCV infection among all the tested compounds. Correspondingly, kaempferol decreased transcription levels of viral genes and the synthesis of viral proteins, as well as reduced proliferation and release of viral progeny, the severity of the CPE induced by CCV in a dose-dependent manner, based on quantitative real-time PCR (RT-qPCR), western blotting, viral cytopathic effects (CPE) and viral titer assessment. Moreover, time-of-drug-addition assays, virus attachment, and penetration assays revealed that kaempferol exerted anti-CCV activity probably by blocking attachment and internalization of the viral entry process. Altogether, the present results indicated that kaempferol may be a promising candidate antiviral agent against CCV infection, which shed light on the development of a novel and potent treatment for fish herpesvirus infection.
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Affiliation(s)
| | | | | | | | | | | | - Zhe Zhao
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, College of Oceanography, Hohai University, Nanjing, China
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Pathak RK, Kim WI, Kim JM. Targeting the PEDV 3CL protease for identification of small molecule inhibitors: an insight from virtual screening, ADMET prediction, molecular dynamics, free energy landscape, and binding energy calculations. J Biol Eng 2023; 17:29. [PMID: 37072787 PMCID: PMC10112315 DOI: 10.1186/s13036-023-00342-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 03/13/2023] [Indexed: 04/20/2023] Open
Abstract
BACKGROUND The porcine epidemic diarrhea virus (PEDV) represents a major health issue for piglets worldwide and does significant damage to the pork industry. Thus, new therapeutic approaches are urgently needed to manage PEDV infections. Due to the current lack of a reliable remedy, this present study aims to identify novel compounds that inhibit the 3CL protease of the virus involved in replication and pathogenesis. RESULTS To identify potent antiviral compounds against the 3CL protease, a virtual screening of natural compounds (n = 97,999) was conducted. The top 10 compounds were selected based on the lowest binding energy and the protein-ligand interaction analyzed. Further, the top five compounds that demonstrated a strong binding affinity were subjected to drug-likeness analysis using the ADMET prediction, which was followed by molecular dynamics simulations (500 ns), free energy landscape, and binding free energy calculations using the MM-PBSA method. Based on these parameters, four putative lead (ZINC38167083, ZINC09517223, ZINC04339983, and ZINC09517238) compounds were identified that represent potentially effective inhibitors of the 3CL protease. CONCLUSION Therefore, these can be utilized for the development of novel antiviral drugs against PEDV. However, this requires further validation through in vitro and in vivo studies.
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Affiliation(s)
- Rajesh Kumar Pathak
- Department of Animal Science and Technology, Chung-Ang University, Anseong-si, Gyeonggi-do 17546, Republic of Korea
| | - Won-Il Kim
- College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeollabuk-do 54596, Republic of Korea
| | - Jun-Mo Kim
- Department of Animal Science and Technology, Chung-Ang University, Anseong-si, Gyeonggi-do 17546, Republic of Korea.
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Zhao Y, Zhao N, Cai Y, Zhang H, Li J, Liu J, Ye C, Wang Y, Dang Y, Li W, Liu H, Zhang L, Li Y, Zhang L, Cheng L, Dong Y, Xu Z, Lei Y, Lu L, Wang Y, Ye W, Zhang F. An algal lectin griffithsin inhibits Hantaan virus infection in vitro and in vivo. Front Cell Infect Microbiol 2022; 12:881083. [PMID: 36579342 PMCID: PMC9791197 DOI: 10.3389/fcimb.2022.881083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 11/16/2022] [Indexed: 12/14/2022] Open
Abstract
Hantaan virus (HTNV) is the etiological pathogen of hemorrhagic fever with renal syndrome in East Asia. There are currently no effective therapeutics approved for HTNV and other hantavirus infections. We found that griffithsin (GRFT), an algae-derived lectin with broad-spectrum antiviral activity against various enveloped viruses, can inhibit the growth and spread of HTNV. In vitro experiments using recombinant vesicular stomatitis virus (rVSV) with HTNV glycoproteins as a model revealed that the GRFT inhibited the entry of rVSV-HTNV-G into host cells. In addition, we demonstrated that GRFT prevented authentic HTNV infection in vitro by binding to the viral N-glycans. In vivo experiments showed that GRFT partially protected the suckling mice from death induced by intracranial exposure to HTNV. These results demonstrated that GRFT can be a promising agent for inhibiting HTNV infection.
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Affiliation(s)
- Yajing Zhao
- College of Life Sciences, Northwest University, Xi’an, Shaanxi, China,Department of Microbiology, School of Preclinical Medicine, Airforce Medical University, Xi’an, Shaanxi, China
| | - Ningbo Zhao
- College of Life Sciences, Northwest University, Xi’an, Shaanxi, China,Department of Microbiology, School of Preclinical Medicine, Airforce Medical University, Xi’an, Shaanxi, China
| | - Yanxing Cai
- Guiyang Maternal and Child Health Care Hospital, Guiyang, Guizhou, China,Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences and BSL-3 Facility, Fudan University, Shanghai, China
| | - Hui Zhang
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University, Xi’an, Shaanxi, China
| | - Jia Li
- Department of Neurology, Xi’an International Medical Center Hospital, Xi’an, Shaanxi, China
| | - Jiaqi Liu
- College of Life Sciences, Northwest University, Xi’an, Shaanxi, China
| | - Chuantao Ye
- Department of Infectious Diseases, Tangdu Hospital, Airforce Medical University, Xi’an, Shaanxi, China
| | - Yuan Wang
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University, Xi’an, Shaanxi, China
| | - Yamei Dang
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University, Xi’an, Shaanxi, China
| | - Wanying Li
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University, Xi’an, Shaanxi, China,Department of Pathogenic Biology, School of Preclinical Medicine, Yan’an University, Yan’an, Shaanxi, China
| | - He Liu
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University, Xi’an, Shaanxi, China
| | - Lianqing Zhang
- College of Life Sciences, Northwest University, Xi’an, Shaanxi, China
| | - Yuexiang Li
- College of Life Sciences, Northwest University, Xi’an, Shaanxi, China
| | - Liang Zhang
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University, Xi’an, Shaanxi, China
| | - Linfeng Cheng
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University, Xi’an, Shaanxi, China
| | - Yangchao Dong
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University, Xi’an, Shaanxi, China
| | - Zhikai Xu
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University, Xi’an, Shaanxi, China
| | - Yingfeng Lei
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University, Xi’an, Shaanxi, China
| | - Lu Lu
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences and BSL-3 Facility, Fudan University, Shanghai, China
| | - Yingjuan Wang
- College of Life Sciences, Northwest University, Xi’an, Shaanxi, China,*Correspondence: Fanglin Zhang, ; Wei Ye, ; Yingjuan Wang,
| | - Wei Ye
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University, Xi’an, Shaanxi, China,*Correspondence: Fanglin Zhang, ; Wei Ye, ; Yingjuan Wang,
| | - Fanglin Zhang
- Department of Microbiology, School of Preclinical Medicine, Airforce Medical University, Xi’an, Shaanxi, China,*Correspondence: Fanglin Zhang, ; Wei Ye, ; Yingjuan Wang,
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Duan C, Luo Y, Liang X, Wang X. A Review of Bioactive Compounds against Porcine Enteric Coronaviruses. Viruses 2022; 14:2217. [PMID: 36298772 DOI: 10.3390/v14102217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/06/2022] [Accepted: 10/07/2022] [Indexed: 11/15/2022] Open
Abstract
Pig diarrhea is a universal problem in the process of pig breeding, which seriously affects the development of the pig industry. Porcine enteric coronaviruses (PECoVs) are common pathogens causing diarrhea in pigs, currently including transmissible gastroenteritis virus (TGEV), porcine epidemic diarrhea virus (PEDV), porcine deltacoronavirus (PDCoV) and swine acute diarrhea syndrome coronavirus (SADS-CoV). With the prosperity of world transportation and trade, the spread of viruses is becoming wider and faster, making it even more necessary to prevent PECoVs. In this paper, the host factors required for the efficient replication of these CoVs and the compounds that exhibit inhibitory effects on them were summarized to promote the development of drugs against PECoVs. This study will be also helpful in discovering general host factors that affect the replication of CoVs and provide references for the prevention and treatment of other CoVs.
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Sun P, Wang M, Li J, Qiu Y, Li H, Lv M, Bo Z, Shen H, Li L. Inhibitory effect of Buddlejasaponin IVb on porcine epidemic diarrhea virus in vivo and in vitro. Vet Microbiol 2022; 272:109516. [PMID: 35901581 DOI: 10.1016/j.vetmic.2022.109516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/10/2022] [Accepted: 07/17/2022] [Indexed: 10/17/2022]
Abstract
Porcine epidemic diarrhea virus (PEDV) is one of the main pathogens causing severe diarrhea in piglets. Infection of the host induces apoptosis, causing huge economic losses to the pig industry. At present, the preventive and therapeutic effects of commercial vaccines are not satisfactory, and it is necessary to develop new anti-PEDV drugs. In this study, we screened the PEDV-inhibiting drug Buddlejasaponin IVb from the natural product library, and determined the inhibitory effect of Buddlejasaponin IVb on PEDV proliferation in a dose-dependent manner. By exploring the effect of Buddlejasaponin IVb on the life cycle of PEDV, it was found that Buddlejasaponin IVb mainly inhibits the replication and release stages of PEDV, but there is no report at home and abroad. In addition, Buddlejasaponin IVb can inhibit PEDV-activated NF-κB signaling pathway by downregulating PEDV or LPS induced elevation of cytokine levels (IL-6, IL-8, IL-1β, TNF-α). Finally, we returned to in vivo experiments to explore the antiviral effects of the drug in pigs. The results show that Buddlejasaponin IVb can effectively relieve the clinical symptoms and intestinal damage caused by PEDV infection in pigs. Therefore, this study will provide an important basis for the research on antiviral drugs of PEDV and its members, and at the same time provide guidance for the actual production, which has important application prospects.
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Affiliation(s)
- Pei Sun
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Mingge Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Jie Li
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Yanping Qiu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Hongyue Li
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Muze Lv
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Zongyi Bo
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Haixiao Shen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Liang Li
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, China.
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Zeng S, Li Y, Zhu W, Luo Z, Wu K, Li X, Fang Y, Qin Y, Chen W, Li Z, Zou L, Liu X, Yi L, Fan S. The Advances of Broad-Spectrum and Hot Anti-Coronavirus Drugs. Microorganisms 2022; 10:microorganisms10071294. [PMID: 35889013 PMCID: PMC9317368 DOI: 10.3390/microorganisms10071294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/22/2022] [Accepted: 06/24/2022] [Indexed: 02/01/2023] Open
Abstract
Coronaviruses, mainly including severe acute respiratory syndrome virus, severe acute respiratory syndrome coronavirus 2, Middle East respiratory syndrome virus, human coronavirus OC43, chicken infectious bronchitis virus, porcine infectious gastroenteritis virus, porcine epidemic diarrhea virus, and murine hepatitis virus, can cause severe diseases in humans and livestock. The severe acute respiratory syndrome coronavirus 2 is infecting millions of human beings with high morbidity and mortality worldwide, and the multiplicity of swine epidemic diarrhea coronavirus in swine suggests that coronaviruses seriously jeopardize the safety of public health and that therapeutic intervention is urgently needed. Currently, the most effective methods of prevention and control for coronaviruses are vaccine immunization and pharmacotherapy. However, the emergence of mutated viruses reduces the effectiveness of vaccines. In addition, vaccine developments often lag behind, making it difficult to put them into use early in the outbreak. Therefore, it is meaningful to screen safe, cheap, and broad-spectrum antiviral agents for coronaviruses. This review systematically summarizes the mechanisms and state of anti-human and porcine coronavirus drugs, in order to provide theoretical support for the development of anti-coronavirus drugs and other antivirals.
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Affiliation(s)
- Sen Zeng
- College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou 510642, China; (S.Z.); (Y.L.); (W.Z.); (Z.L.); (K.W.); (X.L.); (Y.F.); (Y.Q.); (W.C.); (Z.L.); (L.Z.); (X.L.)
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Yuwan Li
- College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou 510642, China; (S.Z.); (Y.L.); (W.Z.); (Z.L.); (K.W.); (X.L.); (Y.F.); (Y.Q.); (W.C.); (Z.L.); (L.Z.); (X.L.)
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Wenhui Zhu
- College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou 510642, China; (S.Z.); (Y.L.); (W.Z.); (Z.L.); (K.W.); (X.L.); (Y.F.); (Y.Q.); (W.C.); (Z.L.); (L.Z.); (X.L.)
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Zipeng Luo
- College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou 510642, China; (S.Z.); (Y.L.); (W.Z.); (Z.L.); (K.W.); (X.L.); (Y.F.); (Y.Q.); (W.C.); (Z.L.); (L.Z.); (X.L.)
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Keke Wu
- College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou 510642, China; (S.Z.); (Y.L.); (W.Z.); (Z.L.); (K.W.); (X.L.); (Y.F.); (Y.Q.); (W.C.); (Z.L.); (L.Z.); (X.L.)
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou 510642, China
| | - Xiaowen Li
- College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou 510642, China; (S.Z.); (Y.L.); (W.Z.); (Z.L.); (K.W.); (X.L.); (Y.F.); (Y.Q.); (W.C.); (Z.L.); (L.Z.); (X.L.)
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou 510642, China
| | - Yiqi Fang
- College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou 510642, China; (S.Z.); (Y.L.); (W.Z.); (Z.L.); (K.W.); (X.L.); (Y.F.); (Y.Q.); (W.C.); (Z.L.); (L.Z.); (X.L.)
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Yuwei Qin
- College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou 510642, China; (S.Z.); (Y.L.); (W.Z.); (Z.L.); (K.W.); (X.L.); (Y.F.); (Y.Q.); (W.C.); (Z.L.); (L.Z.); (X.L.)
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Wenxian Chen
- College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou 510642, China; (S.Z.); (Y.L.); (W.Z.); (Z.L.); (K.W.); (X.L.); (Y.F.); (Y.Q.); (W.C.); (Z.L.); (L.Z.); (X.L.)
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou 510642, China
| | - Zhaoyao Li
- College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou 510642, China; (S.Z.); (Y.L.); (W.Z.); (Z.L.); (K.W.); (X.L.); (Y.F.); (Y.Q.); (W.C.); (Z.L.); (L.Z.); (X.L.)
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou 510642, China
| | - Linke Zou
- College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou 510642, China; (S.Z.); (Y.L.); (W.Z.); (Z.L.); (K.W.); (X.L.); (Y.F.); (Y.Q.); (W.C.); (Z.L.); (L.Z.); (X.L.)
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Xiaodi Liu
- College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou 510642, China; (S.Z.); (Y.L.); (W.Z.); (Z.L.); (K.W.); (X.L.); (Y.F.); (Y.Q.); (W.C.); (Z.L.); (L.Z.); (X.L.)
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Lin Yi
- College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou 510642, China; (S.Z.); (Y.L.); (W.Z.); (Z.L.); (K.W.); (X.L.); (Y.F.); (Y.Q.); (W.C.); (Z.L.); (L.Z.); (X.L.)
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou 510642, China
- Correspondence: (L.Y.); (S.F.); Fax: +86-20-8528-0245 (S.F.)
| | - Shuangqi Fan
- College of Veterinary Medicine, South China Agricultural University, No. 483 Wushan Road, Tianhe District, Guangzhou 510642, China; (S.Z.); (Y.L.); (W.Z.); (Z.L.); (K.W.); (X.L.); (Y.F.); (Y.Q.); (W.C.); (Z.L.); (L.Z.); (X.L.)
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou 510642, China
- Correspondence: (L.Y.); (S.F.); Fax: +86-20-8528-0245 (S.F.)
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Ren J, Zeng W, Jiang C, Li C, Zhang C, Cao H, Li W, He Q. Inhibition of Porcine Epidemic Diarrhea Virus by Cinchonine via Inducing Cellular Autophagy. Front Cell Infect Microbiol 2022; 12:856711. [PMID: 35774410 PMCID: PMC9237225 DOI: 10.3389/fcimb.2022.856711] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 05/12/2022] [Indexed: 11/29/2022] Open
Abstract
Porcine epidemic diarrhea virus (PEDV) could cause lethal diarrhea and dehydration in suckling piglets, which can adversely affect the development of the global swine industry. The lack of effective therapeutical and prophylactic treatment especially for PEDV variant strains underlines the importance of effective antiviral strategies, such as identification of novel antiviral agents. In the present study, the antiviral activity of cinchonine against PEDV was investigated in Vero CCL81 and LLC-PK1 cells at a non-cytotoxic concentration determined by Cell Counting Kit-8 assay in vitro. We found that cinchonine exhibited a significant suppression effect against PEDV infection and its inhibitory action was primarily focused on the early stage of PEDV replication. Moreover, we also observed that cinchonine could significantly induce autophagy by detecting the conversion of LC3-I to LC3-II by using western blot analysis. Cinchonine treatment could inhibit PEDV replication in a dose-dependent manner in Vero CCL81 cells, while this phenomenon disappeared when autophagy was attenuated by pre-treatment with autophagy inhibitor 3MA. Consequently, this study indicated that cinchonine can inhibit PEDV replication via inducing cellular autophagy and thus from the basis for successful antiviral strategies which potentially suggest the possibility of exploiting cinchonine as a novel antiviral agent.
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Affiliation(s)
- Jingping Ren
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agriculture University, Wuhan, China
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, China
| | - Wei Zeng
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agriculture University, Wuhan, China
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, China
| | - Changsheng Jiang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agriculture University, Wuhan, China
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, China
| | - Chang Li
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agriculture University, Wuhan, China
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, China
| | - Chengjun Zhang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agriculture University, Wuhan, China
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, China
| | - Hua Cao
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agriculture University, Wuhan, China
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, China
| | - Wentao Li
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agriculture University, Wuhan, China
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, China
| | - Qigai He
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agriculture University, Wuhan, China
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, China
- *Correspondence: Qigai He,
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11
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Wang P, Wang X, Liu X, Sun M, Liang X, Bai J, Jiang P. Natural Compound ZINC12899676 Reduces Porcine Epidemic Diarrhea Virus Replication by Inhibiting the Viral NTPase Activity. Front Pharmacol 2022; 13:879733. [PMID: 35600889 PMCID: PMC9114645 DOI: 10.3389/fphar.2022.879733] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/06/2022] [Indexed: 11/13/2022] Open
Abstract
Porcine epidemic diarrhea virus (PEDV) is an alphacoronavirus (α-CoV) that causes high mortality in suckling piglets, leading to severe economic losses worldwide. No effective vaccine or commercial antiviral drug is readily available. Several replicative enzymes are responsible for coronavirus replication. In this study, the potential candidates targeting replicative enzymes (PLP2, 3CLpro, RdRp, NTPase, and NendoU) were screened from 187,119 compounds in ZINC natural products library, and seven compounds had high binding potential to NTPase and showed drug-like property. Among them, ZINC12899676 was identified to significantly inhibit the NTPase activity of PEDV by targeting its active pocket and causing its conformational change, and ZINC12899676 significantly inhibited PEDV replication in IPEC-J2 cells. It first demonstrated that ZINC12899676 inhibits PEDV replication by targeting NTPase, and then, NTPase may serve as a novel target for anti-PEDV.
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Affiliation(s)
- Pengcheng Wang
- Key Laboratory of Animal Disease Diagnostics and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Xianwei Wang
- Key Laboratory of Animal Disease Diagnostics and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Xing Liu
- Key Laboratory of Animal Disease Diagnostics and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Meng Sun
- Key Laboratory of Animal Disease Diagnostics and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Xiao Liang
- Key Laboratory of Animal Disease Diagnostics and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Juan Bai
- Key Laboratory of Animal Disease Diagnostics and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Ping Jiang
- Key Laboratory of Animal Disease Diagnostics and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
- *Correspondence: Ping Jiang,
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12
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Zhang Y, Li XY, Zhang BS, Ren LN, Lu YP, Tang JW, Lv D, Yong L, Lin LT, Lin ZX, Mo Q, Mo ML. In vivo antiviral effect of plant essential oils against avian infectious bronchitis virus. BMC Vet Res 2022; 18:90. [PMID: 35255906 PMCID: PMC8899001 DOI: 10.1186/s12917-022-03183-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 02/23/2022] [Indexed: 12/19/2022] Open
Abstract
Background Infectious bronchitis virus (IBV) leads to huge economic losses in the poultry industry worldwide. The high levels of mutations of IBV render vaccines partially protective. Therefore, it is urgent to explore an effective antiviral drug or agent. The present study aimed to investigate the in vivo anti-IBV activity of a mixture of plant essential oils (PEO) of cinnamaldehyde (CA) and glycerol monolaurate (GML), designated as Jin-Jing-Zi. Results The antiviral effects were evaluated by clinical signs, viral loads, immune organ indices, antibody levels, and cytokine levels. The infection rates in the PEO-M (middle dose) and PEO-H (high dose) groups were significantly lower than those in the prevention, positive drug, and PEO-L (low dose) groups. The cure rates in the PEO-M and PEO-H groups were significantly higher than those in the prevention, positive drug, and PEO-L groups, and the PEO-M group had the highest cure rate of 92.31%. The symptom scores and IBV mRNA expression levels were significantly reduced in the PEO-M group. PEO significantly improved the immune organ indices and IBV-specific antibody titers of infected chickens. The anti-inflammatory factor levels of IL-4 and IFN-γ in the PEO-M group maintained high concentrations for a long time. The IL-6 levels in the PEO-M group were lower than those in prevention, positive drug, and PEO-L groups. Conclusion The PEO had remarkable inhibition against IBV and the PEO acts by inhibiting virus multiplication and promoting immune function, suggesting that the PEO has great potential as a novel anti-IBV agent for inhibiting IBV infection. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-022-03183-x.
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Affiliation(s)
- Yu Zhang
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Xiao-Yan Li
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Bing-Sha Zhang
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Li-Na Ren
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Yan-Peng Lu
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Jin-Wen Tang
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Di Lv
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Lu Yong
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Li-Ting Lin
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Zi-Xue Lin
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Qin Mo
- Guangzhou Nasheng Biological Co., Ltd, Guangdong, 510650, China
| | - Mei-Lan Mo
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China.
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13
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Reis JG, Cadamuro RD, Cabral AC, Thaís da Silva I, Rodríguez-Lázaro D, Fongaro G. Broad Spectrum Algae Compounds Against Viruses. Front Microbiol 2022; 12:809296. [PMID: 35095816 PMCID: PMC8795700 DOI: 10.3389/fmicb.2021.809296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 12/24/2021] [Indexed: 12/24/2022] Open
Abstract
The pharmaceutical industry is currently trying to develop new bioactive compounds to inactivate both enveloped and non-enveloped viruses for therapeutic purposes. Consequently, microalgal and macroalgal bioactive compounds are being explored by pharmaceutical, as well as biotechnology and food industries. In this review, we show how compounds produced by algae include important candidates for viral control applications. We discuss their mechanisms of action and activity against enveloped and non-enveloped viruses, including those causing infections by enteric, parenteral, and respiratory routes. Indeed, algal products have potential in human and animal medicine.
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Affiliation(s)
- Jacqueline Graff Reis
- Laboratory of Applied Virology, Department of Microbiology, Immunology, and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Rafael Dorighello Cadamuro
- Laboratory of Applied Virology, Department of Microbiology, Immunology, and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Ariadne Cristiane Cabral
- Laboratory of Applied Virology, Department of Microbiology, Immunology, and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
- Department of Dentistry, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Izabella Thaís da Silva
- Laboratory of Applied Virology, Department of Microbiology, Immunology, and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, Brazil
| | - David Rodríguez-Lázaro
- Microbiology Division, Faculty of Sciences, University of Burgos, Burgos, Spain
- Research Centre for Emerging Pathogens and Global Health, University of Burgos, Burgos, Spain
| | - Gislaine Fongaro
- Laboratory of Applied Virology, Department of Microbiology, Immunology, and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
- *Correspondence: Gislaine Fongaro,
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14
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Chen Z, Chen J, Wei X, Hua H, Hu R, Ding N, Zhang J, Song D, Ye Y, Tang Y, Ding Z, Ke S. Antiviral Activities of Carbazole Derivatives against Porcine Epidemic Diarrhea Virus In Vitro. Viruses 2021; 13:2527. [PMID: 34960796 DOI: 10.3390/v13122527] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/11/2021] [Accepted: 12/12/2021] [Indexed: 11/17/2022] Open
Abstract
Porcine epidemic diarrhea virus (PEDV), an enteric coronavirus, causes neonatal pig acute gastrointestinal infection with a characterization of severe diarrhea, vomiting, high morbidity, and high mortality, resulting in tremendous damages to the swine industry. Neither specific antiviral drugs nor effective vaccines are available, posing a high priority to screen antiviral drugs. The aim of this study is to investigate anti-PEDV effects of carbazole alkaloid derivatives. Eighteen carbazole derivatives (No.1 to No.18) were synthesized, and No.5, No.7, and No.18 were identified to markedly reduce the replication of enhanced green fluorescent protein (EGFP) inserted-PEDV, and the mRNA level of PEDV N. Flow cytometry assay, coupled with CCK8 assay, confirmed No.7 and No.18 carbazole derivatives displayed high inhibition effects with low cell toxicity. Furthermore, time course analysis indicated No.7 and No.18 carbazole derivatives exerted inhibition at the early stage of the viral life cycle. Collectively, the analysis underlines the benefit of carbazole derivatives as potential inhibitors of PEDV, and provides candidates for the development of novel therapeutic agents.
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15
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Tang R, Guo L, Fan Q, Zhang L, Wang Y, Zhang X, Shi D, Wu Y, Shi H, Liu J, Chen J, Feng L. Porcine deltacoronavirus infection is inhibited by Griffithsin in cell culture. Vet Microbiol 2021; 264:109299. [PMID: 34896854 PMCID: PMC8660055 DOI: 10.1016/j.vetmic.2021.109299] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 11/23/2021] [Accepted: 12/05/2021] [Indexed: 12/25/2022]
Abstract
Porcine deltacoronavirus (PDCoV) is an emerging porcine enteric coronavirus that causes severe diarrhea in piglets and results in serious economic losses. There are no effective vaccines and antiviral drugs to prevent and treat PDCoV infection currently. Griffithsin (GRFT) is a lectin with potent antiviral activity against enveloped viruses because of its ability to specifically bind N-linked high-mannose oligosaccharides. GRFT has been reported to possess antiviral activity against severe acute respiratory syndrome coronavirus (SARS-CoV), Middle East respiratory syndrome coronavirus (MERS-CoV), and porcine epidemic diarrhea virus (PEDV). Here, we first confirmed the antiviral activity of GRFT against PDCoV in vitro. The infected cells (%) and virus titers were significantly decreased at concentration 1 μg/mL or above of GRFT. Time-course experiments revealed that GRFT inhibits PDCoV infection at the adsorption and penetration step. GRFT binding to PDCoV spike (S) protein on the surface wraps the virus and blocks its entry. The outstanding antiviral potency indicates that GRFT has the potential value as a candidate drug for the prevention and treatment of PDCoV infection.
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Affiliation(s)
- Rongfeng Tang
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China
| | - Longjun Guo
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China
| | - Qianjin Fan
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China
| | - Liaoyuan Zhang
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China
| | - Yiming Wang
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China
| | - Xin Zhang
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China
| | - Da Shi
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China
| | - Yang Wu
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China
| | - Hongyan Shi
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China
| | - Jianbo Liu
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China
| | - Jianfei Chen
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China.
| | - Li Feng
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China.
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Lv X, Zhang M, Yu S, Zhang C, Fang T, Liu D, Jia B, Zhu M, Wang B, Wang Q, Zhu Y, Wang G. Antiviral and virucidal activities of lycorine on duck tembusu virus in vitro by blocking viral internalization and entry. Poult Sci 2021; 100:101404. [PMID: 34478911 DOI: 10.1016/j.psj.2021.101404] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/14/2021] [Accepted: 07/21/2021] [Indexed: 11/21/2022] Open
Abstract
Duck tembusu virus (DTMUV) was firstly identified in 2010 in China; since then, it has caused enormous economic loss to breeding industry. Great efforts have been made to develop drugs and vaccines against DTMUV. However, current available vaccines or anti-DTMUV drugs are consistently inefficient. Hence, various more broadly effective drugs have become important for the treatment of DTMUV infection; among these, lycorine, one of the important sources of active alkaloids, is a promising example. Nevertheless, it is not known whether lycorine has any antiviral activities against DTMUV. Therefore, the purpose of the present study is to investigate the anti-DTMUV abilities of lycorine. The cytotoxicity of lycorine was evaluated on BHK-21 cells by CCK-8 assay, and its antiviral effect against DTMUV was examined by real-time PCR assays, virus titer determination, Western blot and immunofluorescence (IFA) assays, respectively. Furthermore, the underlying mechanisms of the anti-DTMUV effects of lycorine were also investigated. The results indicated that the highest nontoxicity concentration of lycorine on BHK-21 cells was 5 µM. Lycorine possessed the antiviral ability against DTMUV on BHK-21 cells, as demonstrated by the reduction of virus titers and copy numbers in vitro. Western blot and IFA analysis showed the inhibitory effect of lycorine on DTMUV envelope (E) protein expression. Moreover, using time-of-addition assays, we found that lycorine displays its antivirus and virucidal activities through blocking viral internalization and entry in vitro. Taken together, our findings firstly demonstrate the antiviral activities of lycorine against DTMUV, suggesting that lycorine can be a potential drug for the treatment of DTMUV infection.
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Abstract
Severe acute respiratory syndrome-related coronavirus-2 (SARS-CoV-2), a β-coronavirus, is the cause of the recently emerged pandemic and worldwide outbreak of respiratory disease. Researchers exchange information on COVID-19 to enable collaborative searches. Although there is as yet no effective antiviral agent, like tamiflu against influenza, to block SARS-CoV-2 infection to its host cells, various candidates to mitigate or treat the disease are currently being investigated. Several drugs are being screened for the ability to block virus entry on cell surfaces and/or block intracellular replication in host cells. Vaccine development is being pursued, invoking a better elucidation of the life cycle of the virus. SARS-CoV-2 recognizes O-acetylated neuraminic acids and also several membrane proteins, such as ACE2, as the result of evolutionary switches of O-Ac SA recognition specificities. To provide information related to the current development of possible anti-SARS-COV-2 viral agents, the current review deals with the known inhibitory compounds with low molecular weight. The molecules are mainly derived from natural products of plant sources by screening or chemical synthesis via molecular simulations. Artificial intelligence-based computational simulation for drug designation and large-scale inhibitor screening have recently been performed. Structure-activity relationship of the anti-SARS-CoV-2 natural compounds is discussed.
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Affiliation(s)
- Cheorl-Ho Kim
- Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, Sungkyunkhwan University, Suwon, South Korea
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18
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Yuan C, Huang X, Zhai R, Ma Y, Xu A, Zhang P, Yang Q. In Vitro Antiviral Activities of Salinomycin on Porcine Epidemic Diarrhea Virus. Viruses 2021; 13:v13040580. [PMID: 33808275 PMCID: PMC8066218 DOI: 10.3390/v13040580] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/25/2021] [Accepted: 03/28/2021] [Indexed: 01/16/2023] Open
Abstract
Porcine epidemic diarrhea virus (PEDV), an enteropathogenic coronavirus, has catastrophic impacts on the global pig industry. Owing to the lack of effective vaccines and specific therapeutic options for PEDV, it is pertinent to develop new and available antivirals. This study identified, for the first time, a salinomycin that actively inhibited PEDV replication in Vero cells in a dose-dependent manner. Furthermore, salinomycin significantly inhibited PEDV infection by suppressing the entry and post-entry of PEDV in Vero cells. It did not directly interact with or inactivate PEDV particles, but it significantly ameliorated the activation of Erk1/2, JNK and p38MAPK signaling pathways that are associated with PEDV infection. This implied that salinomycin inhibits PEDV replication by altering MAPK pathway activation. Notably, the PEDV induced increase in reactive oxidative species (ROS) was not decreased, indicating that salinomycin suppresses PEDV replication through a pathway that is an independent pathway of viral-induced ROS. Therefore, salinomycin is a potential drug that can be used for treating PEDV infection.
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Affiliation(s)
| | | | | | | | | | | | - Qian Yang
- Correspondence: ; Tel.: +86-02584395817
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Liu J, Obaidi I, Nagar S, Scalabrino G, Sheridan H. The antiviral potential of algal-derived macromolecules. Current Research in Biotechnology 2021. [DOI: 10.1016/j.crbiot.2021.04.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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20
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Wang P, Bai J, Liu X, Wang M, Wang X, Jiang P. Tomatidine inhibits porcine epidemic diarrhea virus replication by targeting 3CL protease. Vet Res 2020; 51:136. [PMID: 33176871 PMCID: PMC7656508 DOI: 10.1186/s13567-020-00865-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 10/26/2020] [Indexed: 01/07/2023] Open
Abstract
Porcine epidemic diarrhea virus (PEDV) causes lethal diarrhea in suckling piglets, leading to severe economic losses worldwide. There is an urgent need to find new therapeutic methods to prevent and control PEDV. Not only is there a shortage of commercial anti-PEDV drugs, but available commercial vaccines fail to protect against highly virulent PEDV variants. We screened an FDA-approved library of 911 natural products and found that tomatidine, a steroidal alkaloid extracted from the skin and leaves of tomatoes, demonstrates significant inhibition of PEDV replication in Vero and IPEC-J2 cells in vitro. Molecular docking and molecular dynamics analysis predicted interactions between tomatidine and the active pocket of PEDV 3CL protease, which were confirmed by fluorescence spectroscopy and isothermal titration calorimetry (ITC). The inhibiting effect of tomatidine on 3CL protease was determined using cleavage visualization and FRET assay. Tomatidine-mediated blocking of 3CL protease activity in PEDV-infected cells was examined by western blot detection of the viral polyprotein in PEDV-infected cells. It indicates that tomatidine inhibits PEDV replication mainly by targeting 3CL protease. In addition, tomatidine also has antiviral activity against transmissible gastroenteritis virus (TGEV), porcine reproductive and respiratory syndrome virus (PRRSV), encephalo myocarditis virus (EMCV) and seneca virus A (SVA) in vitro. These results may be helpful in developing a new prophylactic and therapeutic strategy against PEDV and other swine disease infections.
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Affiliation(s)
- Pengcheng Wang
- Key Laboratory of Animal Disease Diagnostics and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Juan Bai
- Key Laboratory of Animal Disease Diagnostics and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xuewei Liu
- Key Laboratory of Animal Disease Diagnostics and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Mi Wang
- Key Laboratory of Animal Disease Diagnostics and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xianwei Wang
- Key Laboratory of Animal Disease Diagnostics and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China. .,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.
| | - Ping Jiang
- Key Laboratory of Animal Disease Diagnostics and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China. .,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.
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21
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Attia YA, Alagawany MM, Farag MR, Alkhatib FM, Khafaga AF, Abdel-Moneim AME, Asiry KA, Mesalam NM, Shafi ME, Al-Harthi MA, Abd El-Hack ME. Phytogenic Products and Phytochemicals as a Candidate Strategy to Improve Tolerance to Coronavirus. Front Vet Sci 2020; 7:573159. [PMID: 33195565 PMCID: PMC7606864 DOI: 10.3389/fvets.2020.573159] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 09/09/2020] [Indexed: 12/28/2022] Open
Abstract
Coronaviruses are the causative agents of many infectious diseases in human and animals. These included severe acute respiratory syndrome (SARS), avian infectious bronchitis (IBV) in poultry, Middle East respiratory syndrome (MERS), and coronavirus disease 2019 (COVID-19) in humans. These results had considerable death burdens and negative influences on social-economic life. Since the appearance of the outbreak of the COVID-19 pandemic, continuous investigations have been carried out by researchers to find active compounds, mainly from plants, as natural sources, that could inhibit or stop the proliferation of the causative agent of COVID-19 (SARS-CoV-2). The most common symptoms caused by infections with COVID-19 can include cough, fever, and sore throat. Nevertheless, there is a shortage of active antiviral compounds for treating different strains of coronavirus. Herbal medicine is a class of medication that originates from nature and is aimed at decreasing the use of preservatives, excipients, or other additives and, consequently, lesser side effects. The rapid spread of COVID-19 infection besides the lack of knowledge about any treatments and the growing concern of the public from the virus directed us toward writing this review article in an aim to provide alternatives to the allopathic medicine use. There is a wealth of chemical diversity in the naturally existing compounds, including their antiviral activities, which may encourage their utilization as therapeutics against viral infections, including coronaviruses. The majority of publications on the herbal remedies of coronavirus, MERS, or SARS focused primarily on the use of polar compounds. These substances displayed encouraging inhibitory influences on coronavirus in humans. These include psoralidin, scutellarein, silvestrol, tryptanthrin, caffeic acid, quercetin, myricetin, saikosaponin B2, griffithsin (lectins), and isobavachalcone. Some other agents like lycorine may be useful, if the antiviral activity is obtained by concentrations below the toxic plasma levels. According to the available literatures, the most promising inhibitors of coronaviruses are polyphenolic compounds, which are small molecules with conjugated fused ring structures.
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Affiliation(s)
- Youssef A. Attia
- Agriculture Department, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
- The Strategic Center to Kingdom Vision Realization, King Abdulaziz University, Jeddah, Saudi Arabia
- Animal and Poultry Production Department, Faculty of Agriculture, Damanhour University, Damanhour, Egypt
| | - Mahmoud M. Alagawany
- Department of Poultry, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Mayada R. Farag
- Forensic Medicine and Toxicology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Fatmah M. Alkhatib
- Chemistry Department, Faculty of Applied Science, UmmAl-Qura University, Makkah, Saudi Arabia
| | - Asmaa F. Khafaga
- Department of Pathology, Faculty of Veterinary Medicine, Alexandria University, Edfina, Egypt
| | | | - Khalid A. Asiry
- Agriculture Department, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Noura M. Mesalam
- Biological Application Department, Nuclear Research Center, Atomic Energy Authority, Abu-Zaabal, Egypt
| | - Manal E. Shafi
- Department of Biological Sciences, Zoology, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammed A. Al-Harthi
- Agriculture Department, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
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Mani JS, Johnson JB, Steel JC, Broszczak DA, Neilsen PM, Walsh KB, Naiker M. Natural product-derived phytochemicals as potential agents against coronaviruses: A review. Virus Res 2020; 284:197989. [PMID: 32360300 PMCID: PMC7190535 DOI: 10.1016/j.virusres.2020.197989] [Citation(s) in RCA: 243] [Impact Index Per Article: 60.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/24/2020] [Accepted: 04/24/2020] [Indexed: 12/19/2022]
Abstract
Coronaviruses are responsible for a growing economic, social and mortality burden, as the causative agent of diseases such as severe acute respiratory syndrome (SARS), Middle East respiratory syndrome (MERS), avian infectious bronchitis virus (IBV) and COVID-19. However, there is a lack of effective antiviral agents for many coronavirus strains. Naturally existing compounds provide a wealth of chemical diversity, including antiviral activity, and thus may have utility as therapeutic agents against coronaviral infections. The PubMed database was searched for papers including the keywords coronavirus, SARS or MERS, as well as traditional medicine, herbal, remedy or plants, with 55 primary research articles identified. The overwhelming majority of publications focussed on polar compounds. Compounds that show promise for the inhibition of coronavirus in humans include scutellarein, silvestrol, tryptanthrin, saikosaponin B2, quercetin, myricetin, caffeic acid, psoralidin, isobavachalcone, and lectins such as griffithsin. Other compounds such as lycorine may be suitable if a therapeutic level of antiviral activity can be achieved without exceeding toxic plasma concentrations. It was noted that the most promising small molecules identified as coronavirus inhibitors contained a conjugated fused ring structure with the majority being classified as being polyphenols.
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Affiliation(s)
- Janice S Mani
- School of Health, Medical and Applied Sciences, CQUniversity, Bruce Hwy, North Rockhampton, QLD, Australia
| | - Joel B Johnson
- School of Health, Medical and Applied Sciences, CQUniversity, Bruce Hwy, North Rockhampton, QLD, Australia
| | - Jason C Steel
- School of Health, Medical and Applied Sciences, CQUniversity, Bruce Hwy, North Rockhampton, QLD, Australia
| | - Daniel A Broszczak
- Institute of Health & Biomedical Innovation (Q-Block), Queensland University of Technology, Kelvin Grove Campus, QLD, Australia
| | - Paul M Neilsen
- School of Health, Medical and Applied Sciences, CQUniversity, Bruce Hwy, North Rockhampton, QLD, Australia
| | - Kerry B Walsh
- School of Health, Medical and Applied Sciences, CQUniversity, Bruce Hwy, North Rockhampton, QLD, Australia
| | - Mani Naiker
- School of Health, Medical and Applied Sciences, CQUniversity, Bruce Hwy, North Rockhampton, QLD, Australia; Centre for Indigenous Health Equity Research, CQUniversity, Bruce Hwy, North Rockhampton, QLD, Australia.
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Valente M, Castillo-Acosta VM, Vidal AE, González-Pacanowska D. Overview of the role of kinetoplastid surface carbohydrates in infection and host cell invasion: prospects for therapeutic intervention. Parasitology 2019; 146:1743-54. [PMID: 31603063 DOI: 10.1017/S0031182019001355] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Kinetoplastid parasites are responsible for serious diseases in humans and livestock such as Chagas disease and sleeping sickness (caused by Trypanosoma cruzi and Trypanosoma brucei, respectively), and the different forms of cutaneous, mucocutaneous and visceral leishmaniasis (produced by Leishmania spp). The limited number of antiparasitic drugs available together with the emergence of resistance underscores the need for new therapeutic agents with novel mechanisms of action. The use of agents binding to surface glycans has been recently suggested as a new approach to antitrypanosomal design and a series of peptidic and non-peptidic carbohydrate-binding agents have been identified as antiparasitics showing efficacy in animal models of sleeping sickness. Here we provide an overview of the nature of surface glycans in three kinetoplastid parasites, T. cruzi, T. brucei and Leishmania. Their role in virulence and host cell invasion is highlighted with the aim of identifying specific glycan-lectin interactions and carbohydrate functions that may be the target of novel carbohydrate-binding agents with therapeutic applications.
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Lee C. Griffithsin, a Highly Potent Broad-Spectrum Antiviral Lectin from Red Algae: From Discovery to Clinical Application. Mar Drugs 2019; 17:E567. [PMID: 31590428 DOI: 10.3390/md17100567] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/01/2019] [Accepted: 10/03/2019] [Indexed: 12/12/2022] Open
Abstract
Virus entry into a susceptible host cell is the first step in the formation of all viral diseases. Controlling viral infections by disrupting viral entry is advantageous for antibody-mediated neutralization by the host’s immune system and as a preventive and therapeutic antiviral strategy. Recently, several plant-derived carbohydrate-binding proteins (lectins) have emerged as a new class of antiviral biologics by taking advantage of a unique glycosylation pattern only found on the surface of viruses. In particular, a red algae-derived griffithsin (GRFT) protein has demonstrated superior in vitro and in vivo antiviral activity with minimum host toxicity against a variety of clinically relevant, enveloped viruses. This review examines the structural characteristics of GRFT, focusing on its carbohydrate-binding capability. Its in vitro antiviral profiles against human immunodeficiency virus (HIV) are also discussed followed by a description of the results from a combination study using anti-HIV drugs. The results of several studies regarding its novel antiviral mechanism of action are provided in conjunction with an explanation of viral resistance profiles to GRFT. In addition, its in vitro and in vivo host toxicity profiles are summarized with its pharmacokinetic behavior using in vivo efficacy study results. Also, a large-scale production and formulation strategy, as well as a drug delivery strategy, for GRFT as a new class of broad-spectrum microbicides is discussed. Finally, results from two ongoing clinical studies examining GRFT’s effects on viruses are presented.
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