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Wang C, Chen Y, Chen X, Hu C, Chen J, Guo A. Evaluation of Antiviral Activity of Ivermectin against Infectious Bovine Rhinotracheitis Virus in Rabbit Model. Animals (Basel) 2023; 13:3164. [PMID: 37893888 PMCID: PMC10603647 DOI: 10.3390/ani13203164] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/27/2023] [Accepted: 10/03/2023] [Indexed: 10/29/2023] Open
Abstract
Infectious bovine rhinotracheitis (IBR) caused by bovine herpes virus 1 (BoHV-1) can lead to enormous economic losses in the cattle industry. Vaccine immunization is preferentially used to decrease its transmission speed and resultant clinical signs, rather than to completely stop viral infection. Therefore, a drug effective in treating IBR is urgently needed. Our previous work demonstrated that ivermectin significantly inhibited viral replication in a cell infection model. This study aimed to investigate its antiviral effects in vivo by using a rabbit infection model. The viral inhibition assay was first used to confirm that ivermectin at low concentrations (6-25 nM) could reduce viral titers (TCID50) significantly (p < 0.001) at 24 h post-infection. In rabbits, ivermectin was administrated with one to three doses, based on the recommended anti-parasite treatment dosage (0.2 mg/kg bodyweight) through subcutaneous injection at different days post-infection in the treated IBRV infection groups, while non-treated infection group was used as the control. The infected rabbits showed hyperthermia and other clinical signs, but the number of high-fever rabbits in the ivermectin treatment groups was significantly lower than that in the non-treated infection group. Furthermore, in ivermectin treatment groups, the cumulative clinical scores correlated negatively with drug doses and positively with delay of administration time post-infection. The overall nasal shedding time in ivermectin-treated groups was two days shorter than the non-treated challenge group. At the same time point, the titer of neutralizing antibodies in the treatment group with triple doses was higher than the other two-dose groups, but the difference between the treatment groups decreased with the delay of drug administration. Correspondingly, the serious extent of lung lesions was negatively related to the dosage, but positively related to the delay of drug administration. The qPCR with tissue homogenates showed that the virus was present in both the lung tissues and trigeminals of the infected rabbits. In conclusion, ivermectin treatment had therapeutic effect by decreasing clinical signs and viral shedding, but could not stop virus proliferation in lung tissues and trigeminals.
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Affiliation(s)
- Chen Wang
- The National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.)
- Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ruminant Bio-Products, Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan 430070, China
| | - Yingyu Chen
- The National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.)
- Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ruminant Bio-Products, Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan 430070, China
| | - Xi Chen
- The National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.)
- Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ruminant Bio-Products, Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan 430070, China
| | - Changmin Hu
- The National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.)
- Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ruminant Bio-Products, Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan 430070, China
| | - Jianguo Chen
- The National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.)
- Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ruminant Bio-Products, Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan 430070, China
| | - Aizhen Guo
- The National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.)
- Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ruminant Bio-Products, Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan 430070, China
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Naeem Z, Raza S, Afzal S, Sheikh AA, Ali MM, Altaf I. Antiviral potential of ivermectin against foot-and-mouth disease virus, serotype O, A and Asia-1. Microb Pathog 2021; 155:104914. [PMID: 33915205 DOI: 10.1016/j.micpath.2021.104914] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 11/16/2022]
Abstract
Each year, foot-and-mouth disease leads to enormous economic losses to the livestock industry. Currently, the killed whole virus is widely using to control FMD. However, vaccination is constrained by lack of or incomplete protection. Therefore, along with vaccination, we need to find the antivirals against FMD. This study was conducted to investigate the antiviral potential of ivermectin against multiple serotypes of FMDV. Initially, an MTT assay was performed on the BHK-21 cell line to determine assay ivermectin cytotoxicity. Viral inhibition assays using the non-cytotoxic concentration of ivermectin were performed to check the antiviral potential of ivermectin on different stages of virus replication. At 2.5 μM and 5 μM concentrations of ivermectin, the virus titer was reduced significantly (p < 0.001) by two to three log in all three strains of viruses at both non-toxic concentrations (2.5 and 5 μM). The virus titer in strain O control was 106.0 TCID50/0.1 mL and was reduced to 104.1 TCID50/0.1 mL at a concentration of 2.5 μM and 103.10 TCID50/0.1 mL at 5 μM concentration. In the case of strain Asia-1, the virus titer was reduced to 103.8 TCID50/0.1 mL at 2.5 μM and 103.01TCID50/0.1 mL at 5 μM concentration. The titer of strain A was reduced from 105.8 TCID50/0.1 mL to 103.9 TCID50/0.1 mL at 2.5 μM concentration and 103.1 TCID50/0.1 mL at 5 μM concentration. Moreover, the virus titer was reduced more at the replication stage as compared to attachment and entry stages. This study showed the in vitro anti-FMDV potential of ivermectin for the first time and predicted its potential use against FMDV infections.
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Affiliation(s)
- Zahra Naeem
- Institute of Microbiology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Sohail Raza
- Institute of Microbiology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan.
| | - Saba Afzal
- Institute of Microbiology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Ali Ahmad Sheikh
- Institute of Microbiology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Muhammad Muddassir Ali
- Institute of Biochemistry and Biotechnology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Imran Altaf
- Institute of Microbiology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
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Yesilbag K, Toker EB, Ates O. Ivermectin also inhibits the replication of bovine respiratory viruses (BRSV, BPIV-3, BoHV-1, BCoV and BVDV) in vitro. Virus Res 2021; 297:198384. [PMID: 33713753 PMCID: PMC7944862 DOI: 10.1016/j.virusres.2021.198384] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 03/02/2021] [Accepted: 03/05/2021] [Indexed: 12/16/2022]
Abstract
Bovine respiratory disease (BRD) complex is an important viral infection that causes huge economic losses in cattle herds worldwide. However, there is no directly effective antiviral drug application against respiratory viral pathogens; generally, the metaphylactic antibacterial drug applications are used for BRD. Ivermectin (IVM) is currently used as a broad-spectrum anti-parasitic agent both for veterinary and human medicine on some occasions. Moreover, since it is identified as an inhibitor for importin α/β-mediated nuclear localization signal (NLS), IVM is also reported to have antiviral potential against several RNA and DNA viruses. Since therapeutic use of IVM in COVID-19 cases has recently been postulated, the potential antiviral activity of IVM against bovine respiratory viruses including BRSV, BPIV-3, BoHV-1, BCoV and BVDV are evaluated in this study. For these purposes, virus titration assay was used to evaluate titers in viral harvest from infected cells treated with non-cytotoxic IVM concentrations (1, 2.5 and 5 μM) and compared to titers from non-treated infected cells. This study indicated that IVM inhibits the replication of BCoV, BVDV, BRSV, BPIV-3 and BoHV-1 in a dose-dependent manner in vitro as well as number of extracellular infectious virions. In addition, it was demonstrated that IVM has no clear effect on the attachment and penetration steps of the replication of the studied viruses. Finally, this study shows for the first time that IVM can inhibit infection of BRD-related viral agents namely BCoV, BPIV-3, BVDV, BRSV and BoHV-1 at the concentrations of 2.5 and 5 μM. Consequently, IVM, which is licensed for antiparasitic indications, also deserves to be evaluated as a broad-spectrum antiviral in BRD cases caused by viral pathogens.
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Affiliation(s)
- Kadir Yesilbag
- Department of Virology, Bursa Uludag University, Faculty of Veterinary Medicine, 16059, Bursa, Turkey.
| | - Eda Baldan Toker
- Department of Virology, Bursa Uludag University, Faculty of Veterinary Medicine, 16059, Bursa, Turkey.
| | - Ozer Ates
- Department of Virology, Bursa Uludag University, Faculty of Veterinary Medicine, 16059, Bursa, Turkey
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Galan LEB, Santos NMD, Asato MS, Araújo JV, de Lima Moreira A, Araújo AMM, Paiva ADP, Portella DGS, Marques FSS, Silva GMA, de Sousa Resende J, Tizolim MR, Santos PL, Buttenbender SF, de Andrade SB, Carbonell RCC, Da Rocha JG, de Souza RGS, da Fonseca AJ. Phase 2 randomized study on chloroquine, hydroxychloroquine or ivermectin in hospitalized patients with severe manifestations of SARS-CoV-2 infection. Pathog Glob Health 2021; 115:235-242. [PMID: 33682640 PMCID: PMC7938655 DOI: 10.1080/20477724.2021.1890887] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Objective: Given the urgent need for strategies to minimize the damage caused by this pandemic, this study performed a randomized, double-blind phase 2 study to assess the safety of the effectiveness of chloroquine (CQ), hydroxychloroquine (HCQ) or ivermectin in severe forms of COVID-19, in addition to identifying predictors of mortality in this group of patients.Methods: Phase 2, double-blind, randomized study to assess the safety and efficacy of enteral CQ, HCQ or ivermectin in patients hospitalized for SARS-CoV-2 infection, admitted to a Reference Hospital in Roraima (Brazil) in may 2020. Patients were randomized in a 1:1:1 ratio. The endpoints were need of supplemental O2, invasive ventilation, admission in ICU and death. The study was approved by an independent IRB.Results: 168 patients were randomized. The mean age was 53.4 years (±15.6), most participants were male (n = 95; 58.2%). Therapy with corticosteroid, anticoagulant or antibiotics was a decision of the attending physicians, and there was no difference between the groups. The mortality was similar in three groups (22.2%; 21.3% and 23.0%) suggesting ineffectiveness of the drugs. No difference in the incidence of serious adverse events were observed. To be older than 60 years of age, obesity, diabetes, extensive pulmonary involvement and low SaO2 at hospital admission due to independent risk factors for mortality.Conclusion: Although CQ, HCQ or ivermectin revealed a favorable safety profile, the tested drugs do not reduce the need for supplemental oxygen, ICU admission, invasive ventilation or death, in patients hospitalized with a severe form of COVID-19.
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Affiliation(s)
- Luis Enrique Bermejo Galan
- Department of Infectious Diseases of Hospital Geral De Roraima. Universidade Federal De Roraima. Boa Vista Brazil.,Post Graduate Program in Health Science of Universidade Federal De Roraima, Health Science Center, Boa Vista, Brazil
| | - Nayara Melo Dos Santos
- Department of Infectious Diseases of Hospital Geral De Roraima. Universidade Federal De Roraima. Boa Vista Brazil
| | - Mauro Shosuka Asato
- Department of Infectious Diseases of Hospital Geral De Roraima. Universidade Federal De Roraima. Boa Vista Brazil
| | - Jucineide Vieira Araújo
- Department of Infectious Diseases of Hospital Geral De Roraima. Universidade Federal De Roraima. Boa Vista Brazil.,Post Graduate Program in Health Science of Universidade Federal De Roraima, Health Science Center, Boa Vista, Brazil
| | - Adriana de Lima Moreira
- Post Graduate Program in Health Science of Universidade Federal De Roraima, Health Science Center, Boa Vista, Brazil
| | - Aléxia Mahara Marques Araújo
- Post Graduate Program in Health Science of Universidade Federal De Roraima, Health Science Center, Boa Vista, Brazil
| | - Artur Diogenes Pinheiro Paiva
- Post Graduate Program in Health Science of Universidade Federal De Roraima, Health Science Center, Boa Vista, Brazil
| | | | - Frank Silas Saldanha Marques
- Post Graduate Program in Health Science of Universidade Federal De Roraima, Health Science Center, Boa Vista, Brazil
| | - Gabriel Melo Alexandre Silva
- Post Graduate Program in Health Science of Universidade Federal De Roraima, Health Science Center, Boa Vista, Brazil
| | - Joana de Sousa Resende
- Post Graduate Program in Health Science of Universidade Federal De Roraima, Health Science Center, Boa Vista, Brazil
| | | | - Poliana Lucenados Santos
- Post Graduate Program in Health Science of Universidade Federal De Roraima, Health Science Center, Boa Vista, Brazil
| | - Steffi Ferreira Buttenbender
- Post Graduate Program in Health Science of Universidade Federal De Roraima, Health Science Center, Boa Vista, Brazil
| | - Stephanye Batista de Andrade
- Post Graduate Program in Health Science of Universidade Federal De Roraima, Health Science Center, Boa Vista, Brazil
| | - Roberto Carlos Cruz Carbonell
- Department of Infectious Diseases of Hospital Geral De Roraima. Universidade Federal De Roraima. Boa Vista Brazil.,Post Graduate Program in Health Science of Universidade Federal De Roraima, Health Science Center, Boa Vista, Brazil
| | | | | | - Allex Jardim da Fonseca
- Department of Infectious Diseases of Hospital Geral De Roraima. Universidade Federal De Roraima. Boa Vista Brazil.,Post Graduate Program in Health Science of Universidade Federal De Roraima, Health Science Center, Boa Vista, Brazil.,Clinical Research Center of the Oncological Center of Roraima - Boa Vista - Brazil
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5
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Kinobe RT, Owens L. A systematic review of experimental evidence for antiviral effects of ivermectin and an in silico analysis of ivermectin's possible mode of action against SARS-CoV-2. Fundam Clin Pharmacol 2021; 35:260-276. [PMID: 33427370 PMCID: PMC8013482 DOI: 10.1111/fcp.12644] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 12/18/2020] [Accepted: 01/07/2021] [Indexed: 01/02/2023]
Abstract
Viral infections remain a major cause of economic loss with an unmet need for novel therapeutic agents. Ivermectin is a putative antiviral compound; the proposed mechanism is the inhibition of nuclear translocation of viral proteins, facilitated by mammalian host importins, a necessary process for propagation of infections. We systematically reviewed the evidence for the applicability of ivermectin against viral infections including SARS‐CoV‐2 regarding efficacy, mechanisms and selective toxicity. The SARS‐CoV‐2 genome was mined to determine potential nuclear location signals for ivermectin and meta‐analyses for in vivo studies included all comparators over time, dose range and viral replication in multiple organs. Ivermectin inhibited the replication of many viruses including those in Flaviviridae, Circoviridae and Coronaviridae families in vitro. Real and mock nuclear location signals were identified in SARS‐CoV‐2, a potential target for ivermectin and predicting a sequestration bait for importin β, stopping infected cells from reaching a virus‐resistant state. While pharmacokinetic evaluations indicate that ivermectin could be toxic if applied based on in vitro studies, inhibition of viral replication in vivo was shown for Porcine circovirus in piglets and Suid herpesvirus in mice. Overall standardized mean differences and 95% confidence intervals for ivermectin versus controls were −4.43 (−5.81, −3.04), p < 0.00001. Based on current results, the potential for repurposing ivermectin as an antiviral agent is promising. However, further work is needed to reconcile in vitro studies with clinical efficacy. Developing ivermectin as an additional antiviral agent should be pursued with an emphasis on pre‐clinical trials in validated models of infection.
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Affiliation(s)
- Robert T Kinobe
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD, Australia
| | - Leigh Owens
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD, Australia
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Tu H, Tu S, Gao S, Shao A, Sheng J. Current epidemiological and clinical features of COVID-19; a global perspective from China. J Infect 2020; 81:1-9. [PMID: 32315723 PMCID: PMC7166041 DOI: 10.1016/j.jinf.2020.04.011] [Citation(s) in RCA: 169] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 04/11/2020] [Indexed: 02/07/2023]
Abstract
Coronavirus disease 2019 (COVID-19) is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and represents a potentially fatal disease of great global public health importance. As of March 26, 2020, the outbreak of COVID-19 has resulted in 462,801 confirmed cases and 20,839 deaths globally, which is more than those caused by SARS and Middle East respiratory syndrome (MERS) in 2003 and 2013, respectively. The epidemic has posed considerable challenges worldwide. Under a strict mechanism of massive prevention and control, China has seen a rapid decrease in new cases of coronavirus; however, the global situation remains serious. Additionally, the origin of COVID-19 has not been determined and no specific antiviral treatment or vaccine is currently available. Based on the published data, this review systematically discusses the etiology, epidemiology, clinical characteristics, and current intervention measures related to COVID-19 in the hope that it may provide a reference for future studies and aid in the prevention and control of the COVID-19 epidemic.
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Affiliation(s)
- Huilan Tu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Sheng Tu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Shiqi Gao
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Anwen Shao
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China,Corresponding authors
| | - Jifang Sheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China,Corresponding authors
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Guo C, Zhu Z, Yu P, Zhang X, Dong W, Wang X, Chen Y, Liu X. Inhibitory effect of iota-carrageenan on porcine reproductive and respiratory syndrome virus in vitro. Antivir Ther 2020; 24:261-270. [PMID: 30747721 DOI: 10.3851/imp3295] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2019] [Indexed: 10/27/2022]
Abstract
BACKGROUND Porcine reproductive and respiratory syndrome virus (PRRSV) is an economically important pathogen and causes significant economic losses to the swine industry worldwide each year. Current vaccination strategies do not effectively prevent and control the virus. Consequently, it is necessary to develop novel antiviral strategies. Carrageenan, extracted from marine red algae, exhibits anti-coagulant, anti-tumour, anti-virus and immunomodulatory activities. METHODS We investigate the inhibitory effect of iota-carrageenan (CG) on PRRSV strain CH-1a via antiviral assay and viral binding, entry and release assays. RESULTS We found that CG effectively inhibited CH-1a replication at mRNA and protein levels in both Marc-145 cells and porcine alveolar macrophages (PAMs). The antiviral activity of CG occurred during viral attachment and entry in virus life cycle. In addition, CG suppressed viral release in Marc-145 cells, as well as blocked CH-1a-induced apoptosis during the late period of infection. Furthermore, CG inhibited CH-1a-induced NF-κB activation, thus interfering with cytokine production in Marc-145 cells and PAMs, which contributes to its anti-PRRSV activity. CONCLUSIONS Taken together, our data imply that CG might be an ideal candidate that is worthwhile developing into a new anti-PRRSV prophylactic and therapeutic drug.
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Affiliation(s)
- Chunhe Guo
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou Higher Education Mega Center, Guangzhou, PR China
| | - Zhenbang Zhu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou Higher Education Mega Center, Guangzhou, PR China
| | - Piao Yu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou Higher Education Mega Center, Guangzhou, PR China
| | - Xiaoxiao Zhang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou Higher Education Mega Center, Guangzhou, PR China
| | - Wenjuan Dong
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou Higher Education Mega Center, Guangzhou, PR China
| | - Xiaoying Wang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou Higher Education Mega Center, Guangzhou, PR China
| | - Yaosheng Chen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou Higher Education Mega Center, Guangzhou, PR China
| | - Xiaohong Liu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou Higher Education Mega Center, Guangzhou, PR China
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Heidary F, Gharebaghi R. Ivermectin: a systematic review from antiviral effects to COVID-19 complementary regimen. J Antibiot (Tokyo) 2020; 73:593-602. [PMID: 32533071 PMCID: PMC7290143 DOI: 10.1038/s41429-020-0336-z] [Citation(s) in RCA: 184] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/05/2020] [Accepted: 05/17/2020] [Indexed: 12/18/2022]
Abstract
Ivermectin proposes many potentials effects to treat a range of diseases, with its antimicrobial, antiviral, and anti-cancer properties as a wonder drug. It is highly effective against many microorganisms including some viruses. In this comprehensive systematic review, antiviral effects of ivermectin are summarized including in vitro and in vivo studies over the past 50 years. Several studies reported antiviral effects of ivermectin on RNA viruses such as Zika, dengue, yellow fever, West Nile, Hendra, Newcastle, Venezuelan equine encephalitis, chikungunya, Semliki Forest, Sindbis, Avian influenza A, Porcine Reproductive and Respiratory Syndrome, Human immunodeficiency virus type 1, and severe acute respiratory syndrome coronavirus 2. Furthermore, there are some studies showing antiviral effects of ivermectin against DNA viruses such as Equine herpes type 1, BK polyomavirus, pseudorabies, porcine circovirus 2, and bovine herpesvirus 1. Ivermectin plays a role in several biological mechanisms, therefore it could serve as a potential candidate in the treatment of a wide range of viruses including COVID-19 as well as other types of positive-sense single-stranded RNA viruses. In vivo studies of animal models revealed a broad range of antiviral effects of ivermectin, however, clinical trials are necessary to appraise the potential efficacy of ivermectin in clinical setting.
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Affiliation(s)
- Fatemeh Heidary
- Head of Ophthalmology Division, Taleghani Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Reza Gharebaghi
- Kish International Campus, University of Tehran, Tehran, Iran. .,International Virtual Ophthalmic Research Center (IVORC), Austin, TX, USA.
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9
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Chaccour C, Hammann F, Ramón-García S, Rabinovich NR. Ivermectin and COVID-19: Keeping Rigor in Times of Urgency. Am J Trop Med Hyg 2020; 102:1156-1157. [PMID: 32314704 PMCID: PMC7253113 DOI: 10.4269/ajtmh.20-0271] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 04/10/2020] [Indexed: 12/20/2022] Open
Affiliation(s)
- Carlos Chaccour
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
- Ifakara Health Institute, Ifakara, United Republic of Tanzania
- Facultad de Medicina, Universidad de Navarra, Pamplona, Spain
| | - Felix Hammann
- Department of General Internal Medicine, Clinical Pharmacology and Toxicology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Santiago Ramón-García
- Research & Development Agency of Aragon (ARAID) Foundation, Zaragoza, Spain
- Department of Microbiology, Mycobacterial Genetics Group, Preventive Medicine and Public Health, Faculty of Medicine, University of Zaragoza, Zaragoza, Spain
| | - N. Regina Rabinovich
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
- Harvard T.H. Chan School of Public Health, Boston, Massachusetts
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10
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Ivermectin, a new candidate therapeutic against SARS-CoV-2/COVID-19. Ann Clin Microbiol Antimicrob 2020; 19:23. [PMID: 32473642 PMCID: PMC7261036 DOI: 10.1186/s12941-020-00368-w] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 05/25/2020] [Indexed: 12/19/2022] Open
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11
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Lv C, Liu W, Wang B, Dang R, Qiu L, Ren J, Yan C, Yang Z, Wang X. Ivermectin inhibits DNA polymerase UL42 of pseudorabies virus entrance into the nucleus and proliferation of the virus in vitro and vivo. Antiviral Res 2018; 159:55-62. [PMID: 30266338 DOI: 10.1016/j.antiviral.2018.09.010] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/10/2018] [Accepted: 09/24/2018] [Indexed: 12/31/2022]
Abstract
Pseudorabies virus (PRV) is an important viral pathogen of pigs that causes huge losses in pig herds worldwide. Ivermectin is a specific inhibitor of importin-α/β-dependent nuclear transport and shows antiviral potential against several RNA viruses by blocking the nuclear localization of viral proteins. Since the replication of DNA viruses is in the nucleus, ivermectin may be functional against DNA virus infections if the DNA polymerase or other important viral proteins enter the nucleus via the importin-α/β-mediated pathway. Here, we determined whether ivermectin suppresses PRV replication in hamster kidney BHK-21 cells and investigated the effect of ivermectin on the subcellular localization of the PRV UL42 protein, the accessory subunit of PRV DNA polymerase. Also, an in vivo anti-PRV assay was conducted in mice. Our data demonstrate that ivermectin treatment inhibits PRV infection in cells in a dose-dependent manner. Treatment of PRV-infected cells with ivermectin significantly suppressed viral DNA synthesis and progeny virus production. Ivermectin disrupted the nuclear localization of UL42 by targeting the nuclear localization signal of the protein in transfected cells. Ivermectin treatment increased the survival rates of mice infected with PRV and relieved infection as indicated by lower clinical scores and fewer gross lesions in the brain. Together, our results suggest that ivermectin may be a therapeutic or preventative agent against PRV infection.
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Affiliation(s)
- Changjie Lv
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Wenkai Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Bin Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Ruyi Dang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Li Qiu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Juan Ren
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Chuanqi Yan
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Zengqi Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China.
| | - Xinglong Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China.
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12
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Genetic engineering alveolar macrophages for host resistance to PRRSV. Vet Microbiol 2017; 209:124-129. [PMID: 28215617 DOI: 10.1016/j.vetmic.2017.01.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 12/28/2016] [Accepted: 01/30/2017] [Indexed: 11/23/2022]
Abstract
Standard strategies for control of porcine reproductive and respiratory syndrome virus (PRRSV) have not been effective, as vaccines have not reduced the prevalence of disease and many producers depopulate after an outbreak. Another method of control would be to prevent the virus from infecting the pig. The virus was thought to infect alveolar macrophages by interaction with a variety of cell surface molecules. One popular model had PRRSV first interacting with heparin sulfate followed by binding to sialoadhesin and then being internalized into an endosome. Within the endosome, PRRSV was thought to interact with CD163 to uncoat the virus so the viral genome could be released into the cytosol and infect the cell. Other candidate receptors have included vimentin, CD151 and CD209. By using genetic engineering, it is possible to test the importance of individual entry mediators by knocking them out. Pigs engineered by knockout of sialoadhesin were still susceptible to infection, while CD163 knockout resulted in pigs that were resistant to infection. Genetic engineering is not only a valuable tool to determine the role of specific proteins in infection by PRRSV (in this case), but also provides a means to create animals resistant to disease. Genetic engineering of alveolar macrophages can also illuminate the role of other proteins in response to infection. We suggest that strategies to prevent infection be pursued to reduce the reservoir of virus.
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13
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Guo C, Zhu Z, Wang X, Chen Y, Liu X. Pyrithione inhibits porcine reproductive and respiratory syndrome virus replication through interfering with NF-κB and heparanase. Vet Microbiol 2017; 201:231-239. [PMID: 28284615 DOI: 10.1016/j.vetmic.2017.01.033] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 01/28/2017] [Indexed: 11/17/2022]
Abstract
Porcine reproductive and respiratory syndrome virus (PRRSV) is a continuous threat to the pig industry, causing high economic losses worldwide. Current vaccination strategies provide only limited protection against PRRSV infection. Consequently, there is a need to develop new antiviral strategies. Pyrithione (PT), a zinc ionophore, is used as an antibacterial and antifungal agent, and evidence has shown that PT inhibits the replication of various RNA viruses. However, there is no data regarding its effects against PRRSV infection until now. In this study, we showed that PT strongly inhibited PRRSV replication in Marc-145 cells. Similar inhibitory effects were also found in porcine alveolar macrophages, the major target cell type of PRRSV infection in pigs in vivo. PT also attenuated virus-induced apoptosis during the late phase of infection. In addition, we provided evidence that PT caused a rapid import of extracellular zinc ions into cells, and imported Zn2+ was responsible for its antiviral property. We investigated the molecular mechanisms of PT against PRRSV and found that PT inhibited NF-κB and heparanase, producing the increased heparan sulfate expression to block the release of virus and cytokines, thus decreasing viral replication. These findings suggest that PT has the potential to the development of prophylactic and therapeutic strategies against PRRSV infection.
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Affiliation(s)
- Chunhe Guo
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou Higher Education Mega Center, North Third Road, Guangzhou, Guangdong 510006, PR China.
| | - Zhenbang Zhu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou Higher Education Mega Center, North Third Road, Guangzhou, Guangdong 510006, PR China.
| | - Xiaoying Wang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou Higher Education Mega Center, North Third Road, Guangzhou, Guangdong 510006, PR China.
| | - Yaosheng Chen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou Higher Education Mega Center, North Third Road, Guangzhou, Guangdong 510006, PR China.
| | - Xiaohong Liu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou Higher Education Mega Center, North Third Road, Guangzhou, Guangdong 510006, PR China.
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14
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Colson P, Raoult D. Fighting viruses with antibiotics: an overlooked path. Int J Antimicrob Agents 2016; 48:349-52. [PMID: 27546219 PMCID: PMC7134768 DOI: 10.1016/j.ijantimicag.2016.07.004] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 07/02/2016] [Indexed: 01/07/2023]
Affiliation(s)
- Philippe Colson
- Institut Hospitalo-Universitaire (IHU) Méditerranée Infection, Assistance Publique-Hôpitaux de Marseille, Centre Hospitalo-Universitaire Timone, Pôle des Maladies Infectieuses et Tropicales Clinique et Biologique, Fédération de Bactériologie-Hygiène-Virologie, Marseille, France; Aix-Marseille Université, Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes (URMITE), UM63 CNRS 7278 IRD 198 INSERM U1095, Marseille, France
| | - Didier Raoult
- Institut Hospitalo-Universitaire (IHU) Méditerranée Infection, Assistance Publique-Hôpitaux de Marseille, Centre Hospitalo-Universitaire Timone, Pôle des Maladies Infectieuses et Tropicales Clinique et Biologique, Fédération de Bactériologie-Hygiène-Virologie, Marseille, France; Aix-Marseille Université, Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes (URMITE), UM63 CNRS 7278 IRD 198 INSERM U1095, Marseille, France.
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