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da Rocha NC, Amorim LDSC, Won-Held Rabelo V, da Silva CO, Silva LS, Barboza GKP, Carlos MFLP, Neves Lima AEA, Palmer Paixão ICND. β-enaminoester derivatives exhibit promising in vitro and in silico antiviral potential against Mayaro virus. Arch Microbiol 2024; 206:406. [PMID: 39292269 DOI: 10.1007/s00203-024-04135-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2024] [Revised: 09/04/2024] [Accepted: 09/08/2024] [Indexed: 09/19/2024]
Abstract
Mayaro virus (MAYV) is the causative agent of Mayaro fever, which is characterized mainly by acute fever and long-term severe arthralgia, common manifestations of other arbovirus infections, making the correct diagnosis a challenge. Besides, MAYV infections have been reported in South America, especially in Brazil. However, the lack of vaccines or specific antiviral drugs to control these infections makes the search for new antivirals an urgent need. Herein, we evaluated the antiviral potential of synthetic β-enaminoesters derivatives against MAYV replication and their pharmacokinetic and toxicological (ADMET) properties using in vitro and in silico strategies. For this purpose, Vero cells were infected with MAYV at an MOI of 0.1, treated with compounds (50 µM) for 24 h, and virus titers were quantified by plaque reduction assays. Compounds 2b (83.33%) and 2d (77.53%) exhibited the highest activity with inhibition rates of 83.33% and 77.53%, respectively. The most active compounds 2b (EC50 = 18.92 µM; SI > 52.85), and 2d (EC50 = 14.52 µM; SI > 68.87) exhibited higher potency and selectivity than the control drug suramin (EC50 = 38.97 µM; SI > 25.66). Then, we investigated the mechanism of action of the most active compounds. None of the compounds showed virucidal activity, neither inhibited virus adsorption, but compound 2b inhibited virus entry (62.64%). Also, compounds 2b and 2d inhibited some processes involved with the release of new virus particles. Finally, in silico results indicated good ADMET parameters of the most active compounds and reinforced their promising profile as drug candidates against MAYV.
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Affiliation(s)
- Natasha Cristina da Rocha
- Laboratório de Virologia Molecular e Biotecnologia Marinha, Programa de Pós-graduação em Ciências e Biotecnologia, Departamento de Biologia Celular e Molecular, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Leonardo Dos Santos Corrêa Amorim
- Laboratório de Virologia Molecular e Biotecnologia Marinha, Programa de Pós-graduação em Ciências e Biotecnologia, Departamento de Biologia Celular e Molecular, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, Brazil
- Gerência de Desenvolvimento Tecnológico, Instituto Vital Brazil, Niterói, RJ, 24230-410, Brazil
| | - Vitor Won-Held Rabelo
- Laboratório de Virologia Molecular e Biotecnologia Marinha, Programa de Pós-graduação em Ciências e Biotecnologia, Departamento de Biologia Celular e Molecular, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Carolina Oliveira da Silva
- Laboratório de Virologia Molecular e Biotecnologia Marinha, Programa de Pós-graduação em Ciências e Biotecnologia, Departamento de Biologia Celular e Molecular, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Luciene Soares Silva
- Laboratório de Virologia Molecular e Biotecnologia Marinha, Programa de Pós-graduação em Ciências e Biotecnologia, Departamento de Biologia Celular e Molecular, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Geicy Kelly Pires Barboza
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro, Brazil
| | | | - Aurea Echevarria Aznar Neves Lima
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro, Brazil
| | - Izabel Christina Nunes de Palmer Paixão
- Laboratório de Virologia Molecular e Biotecnologia Marinha, Programa de Pós-graduação em Ciências e Biotecnologia, Departamento de Biologia Celular e Molecular, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, Brazil.
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2
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Castro EF, Álvarez DE. New Highly Selective Antivirals for Chikungunya Virus identified from the Screening of a Drug-Like Compound Library. Curr Microbiol 2024; 81:343. [PMID: 39227496 DOI: 10.1007/s00284-024-03874-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Accepted: 08/24/2024] [Indexed: 09/05/2024]
Abstract
Chikungunya fever is a mosquito-borne disease caused by Chikungunya virus (CHIKV). Treatment of CHIKV infections is currently supportive and does not limit viral replication or symptoms of persistent chronic arthritis. Although there are multiple compounds reported as antivirals active against CHIKV in vitro, there are still no effective and safe antivirals. Thus, active research aims at the identification of new chemical structures with antiviral activity. Here, we report the screen of the Pandemic Response Box library of small molecules against a fully infectious CHIKV reporter virus. Our screening approach successfully identified previously reported CHIKV antiviral compounds within this library and further expanded potentially active hits, supporting the use of reporter-virus-based assays in high-throughput screening format as a reliable tool for antiviral drug discovery. Four molecules were identified as potential drug candidates against CHIKV: MMV1634402 (Brilacidin) and MMV102270 (Diphyllin), which were previously shown to present broad-spectrum antiviral activities, in addition to MMV1578574 (Eravacycline), and the antifungal MMV689401 (Fluopicolide), for which their antiviral potential is uncovered here.
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Affiliation(s)
- Eliana F Castro
- Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín (UNSAM)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín (1650), Buenos Aires, Argentina.
| | - Diego E Álvarez
- Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín (UNSAM)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín (1650), Buenos Aires, Argentina
- Escuela de Bio y Nanotecnologías (EByN), Universidad Nacional de San Martín, San Martín (1650), Buenos Aires, Argentina
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3
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Metibemu DS, Adeyinka OS, Falode J, Crown O, Ogungbe IV. Inhibitors of the Structural and Nonstructural Proteins of Alphaviruses. ACS Infect Dis 2024; 10:2507-2524. [PMID: 38992989 DOI: 10.1021/acsinfecdis.4c00254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
The Alphavirus genus includes viruses that cause encephalitis due to neuroinvasion and viruses that cause arthritis due to acute and chronic inflammation. There is no approved therapeutic for alphavirus infections, but significant efforts are ongoing, more so in recent years, to develop vaccines and therapeutics for alphavirus infections. This review article highlights some of the major advances made so far to identify small molecules that can selectively target the structural and the nonstructural proteins in alphaviruses with the expectation that persistent investigation of an increasingly expanding chemical space through a variety of structure-based design and high-throughput screening strategies will yield candidate drugs for clinical studies. While most of the works discussed are still in the early discovery to lead optimization stages, promising avenues remain for drug development against this family of viruses.
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Affiliation(s)
- Damilohun Samuel Metibemu
- Chemistry and Biotechnology Science and Engineering Programs, The University of Alabama in Huntsville, 301 Sparkman Drive, Huntsville, Alabama 35899, United States
| | - Olawale Samuel Adeyinka
- Chemistry and Biotechnology Science and Engineering Programs, The University of Alabama in Huntsville, 301 Sparkman Drive, Huntsville, Alabama 35899, United States
| | - John Falode
- Chemistry and Biotechnology Science and Engineering Programs, The University of Alabama in Huntsville, 301 Sparkman Drive, Huntsville, Alabama 35899, United States
| | - Olamide Crown
- Chemistry and Biotechnology Science and Engineering Programs, The University of Alabama in Huntsville, 301 Sparkman Drive, Huntsville, Alabama 35899, United States
| | - Ifedayo Victor Ogungbe
- Chemistry and Biotechnology Science and Engineering Programs, The University of Alabama in Huntsville, 301 Sparkman Drive, Huntsville, Alabama 35899, United States
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4
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Rabelo V, Sanchez-Nuñez ML, Corrêa-Amorim LS, Kuhn RJ, Abreu PA, Paixão ICNP. In Silico Drug Repurposing Uncovered the Antiviral Potential of the Antiparasitic Drug Oxibendazole Against the Chikungunya Virus. ACS OMEGA 2024; 9:27632-27642. [PMID: 38947813 PMCID: PMC11209700 DOI: 10.1021/acsomega.4c03417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/23/2024] [Accepted: 05/31/2024] [Indexed: 07/02/2024]
Abstract
Chikungunya virus (CHIKV) has been reported in over 120 countries and is the causative agent of Chikungunya fever. The debilitating nature of this disease, which can persist months to years after acute infection, drastically impacts the quality of life of patients. Yet, specific antivirals are lacking for the treatment of this disease, which makes the search for new drugs necessary. In this context, the nsP2 protease emerges as an attractive therapeutic target, and drug repurposing strategies have proven to be valuable. Therefore, we combined in silico and in vitro methods to identify known drugs as potential CHIKV nsP2 protease inhibitors with antiviral properties within DrugBank. Herein, we developed a hybrid virtual screening pipeline comprising pharmacophore- and target-based screening, drug-like, and pharmaceutical filtering steps. Six virtual hits were obtained, and two of them, capecitabine (CPB) and oxibendazole (OBZ), were evaluated against CHIKV replication in Vero cells. CPB did not present antiviral activity, whereas OBZ inhibited the replication of two different strains of CHIKV, namely, 181-25 (Asian genotype) and BRA/RJ/18 (clinical isolate from ECSA genotype). OBZ showed potent antiviral activity against the CHIKV BRA/RJ/18 (EC50 = 11.4 μM) with a high selectivity index (>44). Analogs of OBZ (albendazole, fenbendazole, and mebendazole) were also evaluated, but none exhibited anti-CHIKV activity, and further, their stereoelectronic features were analyzed. Additionally, we observed that OBZ acts mainly at post-entry steps. Hence, our results support further in vivo studies to investigate the antiviral potential of OBZ, which offers a new alternative to fight CHIKV infections.
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Affiliation(s)
- Vitor
W. Rabelo
- Programa
de Pós-graduação em Ciências e Biotecnologia,
Instituto de Biologia, Universidade Federal
Fluminense, Niterói, Rio de Janeiro CEP 24210-201, Brazil
| | - Maria Leonisa Sanchez-Nuñez
- Programa
de Pós-graduação em Ciências e Biotecnologia,
Instituto de Biologia, Universidade Federal
Fluminense, Niterói, Rio de Janeiro CEP 24210-201, Brazil
| | - Leonardo S. Corrêa-Amorim
- Programa
de Pós-graduação em Ciências e Biotecnologia,
Instituto de Biologia, Universidade Federal
Fluminense, Niterói, Rio de Janeiro CEP 24210-201, Brazil
- Gerência
de Desenvolvimento Tecnológico, Instituto
Vital Brazil, Niterói, Rio de Janeiro 24230-410, Brazil
| | - Richard J. Kuhn
- Department
of Biological Sciences, Purdue University, West Lafayette, Indiana 47907, United States
- Purdue
Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, Indiana 47907, United States
| | - Paula A. Abreu
- Instituto
de Biodiversidade e Sustentabilidade (NUPEM), Campus Macaé, Universidade Federal do Rio de Janeiro, Rio de Janeiro CEP 27965-045, Brazil
| | - Izabel C. N. P. Paixão
- Programa
de Pós-graduação em Ciências e Biotecnologia,
Instituto de Biologia, Universidade Federal
Fluminense, Niterói, Rio de Janeiro CEP 24210-201, Brazil
- Departamento
de Biologia Celular e Molecular, Instituto de Biologia, Universidade Federal Fluminense, Niterói, Rio de Janeiro CEP 24210-201, Brazil
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5
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Wang M, Wang L, Leng P, Guo J, Zhou H. Drugs targeting structural and nonstructural proteins of the chikungunya virus: A review. Int J Biol Macromol 2024; 262:129949. [PMID: 38311132 DOI: 10.1016/j.ijbiomac.2024.129949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 01/26/2024] [Accepted: 02/01/2024] [Indexed: 02/06/2024]
Abstract
Chikungunya virus (CHIKV) is a single positive-stranded RNA virus of the Togaviridae family and Alphavirus genus, with a typical lipid bilayer envelope structure, and is the causative agent of human chikungunya fever (CHIKF). The U.S. Food and Drug Administration has recently approved the first chikungunya vaccine, Ixchiq; however, vaccination rates are low, and CHIKF is prevalent owing to its periodic outbreaks. Thus, developing effective anti-CHIKV drugs in clinical settings is imperative. Viral proteins encoded by the CHIKV genome play vital roles in all stages of infection, and developing therapeutic agents that target these CHIKV proteins is an effective strategy to improve CHIKF treatment efficacy and reduce mortality rates. Therefore, in the present review article, we aimed to investigate the basic structure, function, and replication cycle of CHIKV and comprehensively outline the current status and future advancements in anti-CHIKV drug development, specifically targeting nonstructural (ns) proteins, including nsP1, nsP2, nsP3, and nsP4 and structural proteins such as capsid (C), E3, E2, 6K, and E1.
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Affiliation(s)
- Mengke Wang
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Lidong Wang
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Ping Leng
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Jinlin Guo
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Hao Zhou
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, Chongqing Traditional Chinese Medicine Hospital, Chongqing 400016, China.
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Côrtes N, Lira A, Prates-Syed W, Dinis Silva J, Vuitika L, Cabral-Miranda W, Durães-Carvalho R, Balan A, Cabral-Marques O, Cabral-Miranda G. Integrated control strategies for dengue, Zika, and Chikungunya virus infections. Front Immunol 2023; 14:1281667. [PMID: 38196945 PMCID: PMC10775689 DOI: 10.3389/fimmu.2023.1281667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/24/2023] [Indexed: 01/11/2024] Open
Abstract
Arboviruses are a major threat to public health in tropical regions, encompassing over 534 distinct species, with 134 capable of causing diseases in humans. These viruses are transmitted through arthropod vectors that cause symptoms such as fever, headache, joint pains, and rash, in addition to more serious cases that can lead to death. Among the arboviruses, dengue virus stands out as the most prevalent, annually affecting approximately 16.2 million individuals solely in the Americas. Furthermore, the re-emergence of the Zika virus and the recurrent outbreaks of chikungunya in Africa, Asia, Europe, and the Americas, with one million cases reported annually, underscore the urgency of addressing this public health challenge. In this manuscript we discuss the epidemiology, viral structure, pathogenicity and integrated control strategies to combat arboviruses, and the most used tools, such as vaccines, monoclonal antibodies, treatment, etc., in addition to presenting future perspectives for the control of arboviruses. Currently, specific medications for treating arbovirus infections are lacking, and symptom management remains the primary approach. However, promising advancements have been made in certain treatments, such as Chloroquine, Niclosamide, and Isatin derivatives, which have demonstrated notable antiviral properties against these arboviruses in vitro and in vivo experiments. Additionally, various strategies within vector control approaches have shown significant promise in reducing arbovirus transmission rates. These encompass public education initiatives, targeted insecticide applications, and innovative approaches like manipulating mosquito bacterial symbionts, such as Wolbachia. In conclusion, combatting the global threat of arbovirus diseases needs a comprehensive approach integrating antiviral research, vaccination, and vector control. The continued efforts of research communities, alongside collaborative partnerships with public health authorities, are imperative to effectively address and mitigate the impact of these arboviral infections on public health worldwide.
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Affiliation(s)
- Nelson Côrtes
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Interunits Graduate Program in Biotechnology of the University of São Paulo, the Butantan Institute and the Technological Research Institute of the State of São Paulo, São Paulo, Brazil
| | - Aline Lira
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Interunits Graduate Program in Biotechnology of the University of São Paulo, the Butantan Institute and the Technological Research Institute of the State of São Paulo, São Paulo, Brazil
| | - Wasim Prates-Syed
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Interunits Graduate Program in Biotechnology of the University of São Paulo, the Butantan Institute and the Technological Research Institute of the State of São Paulo, São Paulo, Brazil
| | - Jaqueline Dinis Silva
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Graduate Program in Pathophysiology and Toxicology, Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Larissa Vuitika
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Ricardo Durães-Carvalho
- São Paulo School of Medicine, Department of Microbiology, Immunology and Parasitology, Federal University of São Paulo, São Paulo, Brazil
| | - Andrea Balan
- The Interunits Graduate Program in Biotechnology of the University of São Paulo, the Butantan Institute and the Technological Research Institute of the State of São Paulo, São Paulo, Brazil
- Applied Structural Biology Laboratory, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Otavio Cabral-Marques
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Graduate Program in Pathophysiology and Toxicology, Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
- Department of Medicine, Division of Molecular Medicine, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Gustavo Cabral-Miranda
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Interunits Graduate Program in Biotechnology of the University of São Paulo, the Butantan Institute and the Technological Research Institute of the State of São Paulo, São Paulo, Brazil
- The Graduate Program in Pathophysiology and Toxicology, Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
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Vieux N, Perrier Q, Bedouch P, Epaulard O. Much ado about nothing? Discrepancy between the available data on the antiviral effect of hydroxychloroquine in March 2020 and its inclusion in COVID-19 clinical trials and outpatient prescriptions. Public Health 2023; 225:35-44. [PMID: 37918175 DOI: 10.1016/j.puhe.2023.09.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/10/2023] [Accepted: 09/24/2023] [Indexed: 11/04/2023]
Abstract
OBJECTIVES Many of the 2020 COVID-19 clinical trials included an (hydroxy)chloroquine ((H)CQ) arm. We aimed to juxtapose the state of science before April 2020 regarding the benefits of (H)CQ for viral infections with the number and size of the clinical trials studying (H)CQ and the volume of (H)CQ dispensed in France. STUDY DESIGN We identified and analysed published scientific material regarding the antiviral activity of (H)CQ and publicly available data regarding clinical trials and drug dispensation in France. METHODS We conducted a review of scientific publications available before April 2020 and a systematic analysis of COVID-19 clinical trials featuring (H)CQ registered on clinicaltrials.gov. RESULTS Before April 2020, 894 scientific publications mentioning (H)CQ for viruses other than coronaviruses were available, including 35 in vitro studies (reporting an inconstant inhibition of viral replication), 11 preclinical studies (reporting no or disputable positive effects), and 32 clinical trials (reporting no or disputable positive effects). Moreover, 67 publications on (H)CQ and coronavirus infections were available, including 12 in vitro studies (reporting an inconstant inhibition of viral replication), two preclinical studies (reporting contradictory results), and no clinical trials. Meanwhile, 253 therapeutic clinical trials featuring an HCQ arm were registered in 2020, intending to enrol 246,623 patients. CONCLUSIONS The number and size of (H)CQ clinical trials for COVID-19 launched in 2020 were not supported by the literature published before April 2020.
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Affiliation(s)
- N Vieux
- Pôle Pharmacie, Université Grenoble Alpes, Centre Hospitalier Universitaire Grenoble Alpes, Grenoble, France
| | - Q Perrier
- Pôle Pharmacie, Université Grenoble Alpes, Centre Hospitalier Universitaire Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetic (LBFA), INSERM U1055, Grenoble, France
| | - P Bedouch
- Pôle Pharmacie, Université Grenoble Alpes, Centre Hospitalier Universitaire Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, CHU Grenoble Alpes, TIMC, 38000 Grenoble, France
| | - O Epaulard
- Infectious Disease Department, Université Grenoble Alpes, Centre Hospitalier Universitaire Grenoble Alpes, Grenoble, France; Groupe de Recherche en Infectiologie Clinique, CIC-1406, INSERM-UGA-CHUGA, France.
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8
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Rabelo VWH, da Silva VD, Sanchez Nuñez ML, dos Santos Corrêa Amorim L, Buarque CD, Kuhn RJ, Abreu PA, Nunes de Palmer Paixão IC. Antiviral evaluation of 1,4-disubstituted-1,2,3-triazole derivatives against Chikungunya virus. Future Virol 2023; 18:865-880. [PMID: 37974899 PMCID: PMC10636642 DOI: 10.2217/fvl-2023-0142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 09/25/2023] [Indexed: 11/19/2023]
Abstract
Aim This work aimed to investigate the antiviral activity of two 1,4-disubstituted-1,2,3-triazole derivatives (1 and 2) against Chikungunya virus (CHIKV) replication. Materials & methods Cytotoxicity was analyzed using colorimetric assays and the antiviral potential was evaluated using plaque assays and computational tools. Results Compound 2 showed antiviral activity against CHIKV 181-25 in BHK-21 and Vero cells. Also, this compound presented a higher activity against CHIKV BRA/RJ/18 in Vero cells, like compound 1. Compound 2 exhibited virucidal activity and inhibited virus entry while compound 1 inhibited virus release. Molecular docking suggested that these derivatives inhibit nsP1 protein while compound 1 may also target capsid protein. Conclusion Both compounds exhibit promising antiviral activity against CHIKV by blocking different steps of virus replication.
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Affiliation(s)
- Vitor Won-Held Rabelo
- Programa de Pós-graduação em Ciências e Biotecnologia, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, CEP, 24210-201, Brazil
| | - Verônica Diniz da Silva
- Laboratório de Síntese Orgânica, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, CEP, 22451-900, Brazil
| | - Maria Leonisa Sanchez Nuñez
- Programa de Pós-graduação em Ciências e Biotecnologia, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, CEP, 24210-201, Brazil
| | - Leonardo dos Santos Corrêa Amorim
- Programa de Pós-graduação em Ciências e Biotecnologia, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, CEP, 24210-201, Brazil
- Gerência de Desenvolvimento Tecnológico, Instituto Vital Brazil, Niterói, RJ, 24230-410, Brazil
| | - Camilla Djenne Buarque
- Laboratório de Síntese Orgânica, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, CEP, 22451-900, Brazil
| | - Richard J Kuhn
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
- Purdue Institute of Inflammation, Immunology, & Infectious Disease, Purdue University, West Lafayette, IN 47907, USA
| | - Paula Alvarez Abreu
- Instituto de Biodiversidade e Sustentabilidade (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, RJ, CEP, 27965-045, Brazil
| | - Izabel Christina Nunes de Palmer Paixão
- Programa de Pós-graduação em Ciências e Biotecnologia, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, CEP, 24210-201, Brazil
- Departamento de Biologia Celular e Molecular, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, CEP, 24210-201, Brazil
- Programas de Pós-graduação em Biotecnologia Marinha e de Neurologia, Universidade Federal Fluminense, Niterói, RJ, Brazil
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9
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Sandenon Seteyen AL, Guiraud P, Gasque P, Girard-Valenciennes E, Sélambarom J. In Vitro Analyses of the Multifocal Effects of Natural Alkaloids Berberine, Matrine, and Tabersonine against the O'nyong-nyong Arthritogenic Alphavirus Infection and Inflammation. Pharmaceuticals (Basel) 2023; 16:1125. [PMID: 37631040 PMCID: PMC10459185 DOI: 10.3390/ph16081125] [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: 06/22/2023] [Revised: 07/21/2023] [Accepted: 08/03/2023] [Indexed: 08/27/2023] Open
Abstract
O'nyong-nyong virus (ONNV) is a member of the reemerging arthritogenic alphaviruses that cause chronic debilitating polyarthralgia and/or polyarthritis via their tropism for the musculoskeletal system. Thus, the discovery of dual antiviral and anti-inflammatory drugs is a great challenge in this field. We investigated the effects of the common plant-derived alkaloids berberine (isoquinoline), matrine (quinolizidine), and tabersonine (indole) at a non-toxic concentration (10 μM) on a human fibroblast cell line (HS633T) infected by ONNV (MOI 1). Using qRT-PCR analyses, we measured the RNA levels of the gene coding for the viral proteins and for the host cell immune factors. These alkaloids demonstrated multifocal effects by the inhibition of viral replication, as well as the regulation of the type-I interferon antiviral signaling pathway and the inflammatory mediators and pathways. Berberine and tabersonine proved to be the more valuable compounds. The results supported the proposal that these common alkaloids may be useful scaffolds for drug discovery against arthritogenic alphavirus infection.
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Affiliation(s)
- Anne-Laure Sandenon Seteyen
- Unité de Recherche Etudes Pharmaco-Immunologiques (UR-EPI), Université de La Réunion, 97400 Saint-Denis, France; (A.-L.S.S.); (P.G.)
| | - Pascale Guiraud
- Unité de Recherche Etudes Pharmaco-Immunologiques (UR-EPI), Université de La Réunion, 97400 Saint-Denis, France; (A.-L.S.S.); (P.G.)
| | - Philippe Gasque
- Unité de Recherche Etudes Pharmaco-Immunologiques (UR-EPI), Université de La Réunion, 97400 Saint-Denis, France; (A.-L.S.S.); (P.G.)
- Centre Hospitalier Universitaire de La Réunion, Laboratoire d’Immunologie Clinique et Expérimentale de la Zone Océan Indien (LICE-OI), Pôle de Biologie, 97400 Saint-Denis, France
| | - Emmanuelle Girard-Valenciennes
- Laboratoire de Chimie et de Biotechnologie des Produits Naturels (CHEMBIOPRO), Université de La Réunion, 97400 Saint-Denis, France
| | - Jimmy Sélambarom
- Unité de Recherche Etudes Pharmaco-Immunologiques (UR-EPI), Université de La Réunion, 97400 Saint-Denis, France; (A.-L.S.S.); (P.G.)
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Shi YJ, Li JQ, Zhang HQ, Deng CL, Zhu QX, Zhang B, Li XD. A high throughput antiviral screening platform for alphaviruses based on Semliki Forest virus expressing eGFP reporter gene. Virol Sin 2023; 38:585-594. [PMID: 37390870 PMCID: PMC10436050 DOI: 10.1016/j.virs.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 06/20/2023] [Indexed: 07/02/2023] Open
Abstract
Alphaviruses, which contain a variety of mosquito-borne pathogens, are important pathogens of emerging/re-emerging infectious diseases and potential biological weapons. Currently, no specific antiviral drugs are available for the treatment of alphaviruses infection. For most highly pathogenic alphaviruses are classified as risk group-3 agents, the requirement of biosafety level 3 (BSL-3) facilities limits the live virus-based antiviral study. To facilitate the antiviral development of alphaviruses, we developed a high throughput screening (HTS) platform based on a recombinant Semliki Forest virus (SFV) which can be manipulated in BSL-2 laboratory. Using the reverse genetics approach, the recombinant SFV and SFV reporter virus expressing eGFP (SFV-eGFP) were successfully rescued. The SFV-eGFP reporter virus exhibited robust eGFP expression and remained relatively stable after four passages in BHK-21 cells. Using a broad-spectrum alphavirus inhibitor ribavirin, we demonstrated that the SFV-eGFP can be used as an effective tool for antiviral study. The SFV-eGFP reporter virus-based HTS assay in a 96-well format was then established and optimized with a robust Z' score. A section of reference compounds that inhibit highly pathogenic alphaviruses were used to validate that the SFV-eGFP reporter virus-based HTS assay enables rapid screening of potent broad-spectrum inhibitors of alphaviruses. This assay provides a safe and convenient platform for antiviral study of alphaviruses.
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Affiliation(s)
- Yu-Jia Shi
- Hunan Normal University, School of Medicine, Changsha, 410081, China
| | - Jia-Qi Li
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hong-Qing Zhang
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Cheng-Lin Deng
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qin-Xuan Zhu
- Hunan Normal University, School of Medicine, Changsha, 410081, China
| | - Bo Zhang
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Xiao-Dan Li
- Hunan Normal University, School of Medicine, Changsha, 410081, China.
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11
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Varikkodan MM, Kunnathodi F, Azmi S, Wu TY. An Overview of Indian Biomedical Research on the Chikungunya Virus with Particular Reference to Its Vaccine, an Unmet Medical Need. Vaccines (Basel) 2023; 11:1102. [PMID: 37376491 DOI: 10.3390/vaccines11061102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 06/08/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
Chikungunya virus (CHIKV) is an infectious agent spread by mosquitos, that has engendered endemic or epidemic outbreaks of Chikungunya fever (CHIKF) in Africa, South-East Asia, America, and a few European countries. Like most tropical infections, CHIKV is frequently misdiagnosed, underreported, and underestimated; it primarily affects areas with limited resources, like developing nations. Due to its high transmission rate and lack of a preventive vaccine or effective treatments, this virus poses a serious threat to humanity. After a 32-year hiatus, CHIKV reemerged as the most significant epidemic ever reported, in India in 2006. Since then, CHIKV-related research was begun in India, and up to now, more than 800 peer-reviewed research papers have been published by Indian researchers and medical practitioners. This review gives an overview of the outbreak history and CHIKV-related research in India, to favor novel high-quality research works intending to promote effective treatment and preventive strategies, including vaccine development, against CHIKV infection.
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Affiliation(s)
- Muhammed Muhsin Varikkodan
- Department of Bioscience Technology, College of Science, Chung Yuan Christian University, Chung-Li, Taoyuan City 320314, Taiwan
| | - Faisal Kunnathodi
- Scientific Research Center, Prince Sultan Military Medical City, Riyadh 11159, Saudi Arabia
| | - Sarfuddin Azmi
- Scientific Research Center, Prince Sultan Military Medical City, Riyadh 11159, Saudi Arabia
| | - Tzong-Yuan Wu
- Department of Bioscience Technology, College of Science, Chung Yuan Christian University, Chung-Li, Taoyuan City 320314, Taiwan
- R&D Center of Membrane Technology, Chung Yuan Christian University, Chung-Li, Taoyuan City 320314, Taiwan
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Henderson Sousa F, Ghaisani Komarudin A, Findlay-Greene F, Bowolaksono A, Sasmono RT, Stevens C, Barlow PG. Evolution and immunopathology of chikungunya virus informs therapeutic development. Dis Model Mech 2023; 16:dmm049804. [PMID: 37014125 PMCID: PMC10110403 DOI: 10.1242/dmm.049804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
Chikungunya virus (CHIKV), a mosquito-borne alphavirus, is an emerging global threat identified in more than 60 countries across continents. The risk of CHIKV transmission is rising due to increased global interactions, year-round presence of mosquito vectors, and the ability of CHIKV to produce high host viral loads and undergo mutation. Although CHIKV disease is rarely fatal, it can progress to a chronic stage, during which patients experience severe debilitating arthritis that can last from several weeks to months or years. At present, there are no licensed vaccines or antiviral drugs for CHIKV disease, and treatment is primarily symptomatic. This Review provides an overview of CHIKV pathogenesis and explores the available therapeutic options and the most recent advances in novel therapeutic strategies against CHIKV infections.
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Affiliation(s)
- Filipa Henderson Sousa
- School of Applied Sciences, Edinburgh Napier University, Sighthill Campus, Edinburgh EH11 4BN, UK
- Centre for Discovery Brain Sciences and UK Dementia Research Institute, The University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Amalina Ghaisani Komarudin
- Eijkman Research Center for Molecular Biology, National Research and Innovation Agency, Cibinong Science Center, Cibinong, Kabupaten Bogor 16911, Indonesia
| | - Fern Findlay-Greene
- School of Applied Sciences, Edinburgh Napier University, Sighthill Campus, Edinburgh EH11 4BN, UK
| | - Anom Bowolaksono
- Cellular and Molecular Mechanisms in Biological System (CEMBIOS) Research Group, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia
| | - R. Tedjo Sasmono
- Eijkman Research Center for Molecular Biology, National Research and Innovation Agency, Cibinong Science Center, Cibinong, Kabupaten Bogor 16911, Indonesia
| | - Craig Stevens
- School of Applied Sciences, Edinburgh Napier University, Sighthill Campus, Edinburgh EH11 4BN, UK
| | - Peter G. Barlow
- School of Applied Sciences, Edinburgh Napier University, Sighthill Campus, Edinburgh EH11 4BN, UK
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13
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Sofyantoro F, Frediansyah A, Priyono DS, Putri WA, Septriani NI, Wijayanti N, Ramadaningrum WA, Turkistani SA, Garout M, Aljeldah M, Al Shammari BR, Alwashmi ASS, Alfaraj AH, Alawfi A, Alshengeti A, Aljohani MH, Aldossary S, Rabaan AA. Growth in chikungunya virus-related research in ASEAN and South Asian countries from 1967 to 2022 following disease emergence: a bibliometric and graphical analysis. Global Health 2023; 19:9. [PMID: 36747262 PMCID: PMC9901127 DOI: 10.1186/s12992-023-00906-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 01/09/2023] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND ASEAN (Association of Southeast Asian Nations) is composed of ten Southeast Asian countries bound by socio-cultural ties that promote regional peace and stability. South Asia, located in the southern subregion of Asia, includes nine countries sharing similarities in geographical and ethno-cultural factors. Chikungunya is one of the most significant problems in Southeast and South Asian countries. Much of the current chikungunya epidemic in Southeast Asia is caused by the emergence of a virus strain that originated in Africa and spread to Southeast Asia. Meanwhile, in South Asia, three confirmed lineages are in circulation. Given the positive correlation between research activity and the improvement of the clinical framework of biomedical research, this article aimed to examine the growth of chikungunya virus-related research in ASEAN and South Asian countries. METHODS The Scopus database was used for this bibliometric analysis. The retrieved publications were subjected to a number of analyses, including those for the most prolific countries, journals, authors, institutions, and articles. Co-occurrence mapping of terms and keywords was used to determine the current state, emerging topics, and future prospects of chikungunya virus-related research. Bibliometrix and VOSviewer were used to analyze the data and visualize the collaboration network mapping. RESULTS The Scopus search engine identified 1280 chikungunya-related documents published by ASEAN and South Asian countries between 1967 and 2022. According to our findings, India was the most productive country in South Asia, and Thailand was the most productive country in Southeast Asia. In the early stages of the study, researchers investigated the vectors and outbreaks of the chikungunya virus. In recent years, the development of antivirus agents has emerged as a prominent topic. CONCLUSIONS Our study is the first to present the growth of chikungunya virus-related research in ASEAN and South Asian countries from 1967 to 2022. In this study, the evaluation of the comprehensive profile of research on chikungunya can serve as a guide for future studies. In addition, a bibliometric analysis may serve as a resource for healthcare policymakers.
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Affiliation(s)
- Fajar Sofyantoro
- Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
- Center for Tropical Biodiversity, Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
| | - Andri Frediansyah
- PRTPP, National Research and Innovation Agency (BRIN), Yogyakarta, 55861, Indonesia.
| | - Dwi Sendi Priyono
- Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
- Center for Tropical Biodiversity, Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
| | | | | | - Nastiti Wijayanti
- Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia.
| | | | | | - Mohammed Garout
- Department of Community Medicine and Health Care for Pilgrims, Faculty of Medicine, Umm Al-Qura University, Makkah, 21955, Saudi Arabia
| | - Mohammed Aljeldah
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hafr Al Batin, Hafr Al Batin, 39831, Saudi Arabia
| | - Basim R Al Shammari
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hafr Al Batin, Hafr Al Batin, 39831, Saudi Arabia
| | - Ameen S S Alwashmi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, 51452, Saudi Arabia
| | - Amal H Alfaraj
- Pediatric Department, Abqaiq General Hospital, First Eastern Health Cluster, Abqaiq, 33261, Saudi Arabia
| | - Abdulsalam Alawfi
- Department of Pediatrics, College of Medicine, Taibah University, Al-Madinah, 41491, Saudi Arabia
| | - Amer Alshengeti
- Department of Pediatrics, College of Medicine, Taibah University, Al-Madinah, 41491, Saudi Arabia
- Department of Infection Prevention and Control, Prince Mohammad Bin Abdulaziz Hospital, National Guard Health Affairs, Al-Madinah, 41491, Saudi Arabia
| | - Maha H Aljohani
- Department of infectious diseases, King Fahad Hospital, Madinah, 42351, Saudi Arabia
| | - Sahar Aldossary
- Pediatric Infectious Diseases, Women and Children's Health Institute, Johns Hopkins Aramco Healthcare, Dhahran, 31311, Saudi Arabia
| | - Ali A Rabaan
- Molecular Diagnostic Laboratory, Johns Hopkins Aramco Healthcare, Dhahran, 31311, Saudi Arabia.
- College of Medicine, Alfaisal University, Riyadh, 11533, Saudi Arabia.
- Department of Public Health and Nutrition, The University of Haripur, Haripur, 22610, Pakistan.
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Prasanth DSNBK, Murahari M, Chandramohan V, Guntupalli C, Atmakuri LR. Computational study for identifying promising therapeutic agents of hydroxychloroquine analogues against SARS-CoV-2. J Biomol Struct Dyn 2022; 40:11822-11836. [PMID: 34396938 DOI: 10.1080/07391102.2021.1965027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Hydroxychloroquine (HCQ) and its derivatives have recently gained tremendous attention as a probable medicinal agent in the COVID-19 outbreak caused by SARS-CoV-2. An efficient agent to act directly in inhibiting the SARS-CoV-2 replication is yet to be achieved. Thus, the goal is to investigate the dynamic nature of HCQ derivatives against SARS-CoV-2 main protease and spike proteins. Molecular docking studies were also performed to understand their binding affinity in silico methods using the vital protein domains and enzymes involved in replicating and multiplying SARS-CoV-2, which were the main protease and spike protein. Molecular Dynamic simulations integrated with MM-PBSA calculations have identified In silico potential inhibitors ZINC05135012 and ZINC59378113 against the main protease with -185.171 ± 16.388, -130.759 ± 15.741 kJ/mol respectively, ZINC16638693 and ZINC59378113 against spike protein -141.425 ± 22.447, -129.149 ± 11.449 kJ/mol. Identified Hit molecules had demonstrated Drug Likeliness features, PASS values and ADMET predictions with no violations. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- D S N B K Prasanth
- Pharmacognosy Research Division, K L College of Pharmacy, Koneru Lakshmaiah Education Foundation, Vaddeswaram, India
| | - Manikanta Murahari
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Bangalore, India
| | - Vivek Chandramohan
- Department of Biotechnology, Siddaganga Institute of Technology, Tumakuru, India
| | - Chakravarthi Guntupalli
- Pharmacognosy Research Division, K L College of Pharmacy, Koneru Lakshmaiah Education Foundation, Vaddeswaram, India
| | - Lakshmana Rao Atmakuri
- Department of Pharmaceutical Analysis, V. V. Institute of Pharmaceutical Sciences, Gudlavalleru, India
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Sandenon Seteyen AL, Girard-Valenciennes E, Septembre-Malaterre A, Gasque P, Guiraud P, Sélambarom J. Anti-Alphaviral Alkaloids: Focus on Some Isoquinolines, Indoles and Quinolizidines. Molecules 2022; 27:molecules27165080. [PMID: 36014321 PMCID: PMC9416297 DOI: 10.3390/molecules27165080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/21/2022] [Accepted: 07/21/2022] [Indexed: 11/16/2022] Open
Abstract
The discovery and the development of safe and efficient therapeutics against arthritogenic alphaviruses (e.g., chikungunya virus) remain a continuous challenge. Alkaloids are structurally diverse and naturally occurring compounds in plants, with a wide range of biological activities including beneficial effects against prominent pathogenic viruses and inflammation. In this short review, we discuss the effects of some alkaloids of three biologically relevant structural classes (isoquinolines, indoles and quinolizidines). Based on various experimental models (viral infections and chronic diseases), we highlight the immunomodulatory effects of these alkaloids. The data established the capacity of these alkaloids to interfere in host antiviral and inflammatory responses through key components (antiviral interferon response, ROS production, inflammatory signaling pathways and pro- and anti-inflammatory cytokines production) also involved in alphavirus infection and resulting inflammation. Thus, these data may provide a convincing perspective of research for the use of alkaloids as immunomodulators against arthritogenic alphavirus infection and induced inflammation.
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Affiliation(s)
- Anne-Laure Sandenon Seteyen
- Unité de Recherche Etudes Pharmaco-Immunologiques (UR-EPI), Université de La Réunion, 97400 Saint-Denis, France
| | - Emmanuelle Girard-Valenciennes
- Laboratoire de Chimie et de Biotechnologie des Produits Naturels (CHEMBIOPRO), Université de La Réunion, 97400 Saint-Denis, France
| | - Axelle Septembre-Malaterre
- Centre Hospitalier Universitaire de La Réunion, Laboratoire d’Immunologie Clinique et Expérimentale de la Zone Océan Indien (LICE-OI), Pôle de Biologie, 97400 Saint-Denis, France
| | - Philippe Gasque
- Unité de Recherche Etudes Pharmaco-Immunologiques (UR-EPI), Université de La Réunion, 97400 Saint-Denis, France
- Centre Hospitalier Universitaire de La Réunion, Laboratoire d’Immunologie Clinique et Expérimentale de la Zone Océan Indien (LICE-OI), Pôle de Biologie, 97400 Saint-Denis, France
| | - Pascale Guiraud
- Unité de Recherche Etudes Pharmaco-Immunologiques (UR-EPI), Université de La Réunion, 97400 Saint-Denis, France
| | - Jimmy Sélambarom
- Unité de Recherche Etudes Pharmaco-Immunologiques (UR-EPI), Université de La Réunion, 97400 Saint-Denis, France
- Correspondence:
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16
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Freitas TR, Novais RM, Santos IA, Martins DOS, Danuello A, da Silva Bolzani V, Jardim ACG, Pivatto M. In vitro antiviral activity of piperidine alkaloids from Senna spectabilis flowers on Chikungunya virus infection. Pharmacol Rep 2022; 74:752-758. [PMID: 35882766 DOI: 10.1007/s43440-022-00381-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 06/03/2022] [Accepted: 06/09/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Chikungunya fever is an endemic disease caused by the Chikungunya virus (CHIKV). To date there is no antiviral treatment against this infection or licensed vaccine to prevent it. Our study aims to evaluate whether (-)-cassine (1) and (-)-spectaline (2), the main alkaloids of Senna spectabilis, display anti-CHIKV activity. Both compounds have been described to be biologically active against neglected tropical diseases, including malaria, leishmaniasis, and schistosomiasis, which emphasizes that these molecules could be repurposed for chikungunya fever treatment. METHODS The structures of the isolated compounds 1 and 2 were identified by NMR and HRESIMS analyses, and their antiviral activity against CHIKV was assessed by a dose-response assay employing BHK-21 cells and CHIKV-nanoluc, a recombinant virus carrying the nanoluciferase gene reporter. RESULTS Compound 1 presented CC50 of 126.5 µM and EC50 of 14.9 µM, while compound 2 presented CC50 of 91.9 µM and EC50 of 8.3 µM. The calculated selectivity index (SI) was 8.5 for 1 and 11.3 for 2. CONCLUSION The data presented herein show that compounds 1 and 2 have potential for being repurposed as anti-CHIKV drug. Our promising in vitro results encourage further in vitro and in vivo assays. This is the first description of the antiviral activity of compounds 1 and 2 against CHIKV infection, which can impact the development of antiviral drug candidates against chikungunya fever, which sometimes can be debilitating.
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Affiliation(s)
- Thamires Rodrigues Freitas
- Núcleo de Pesquisa em Compostos Bioativos (NPCBio), Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, MG, 38400-902, Brazil
| | - Raul Marques Novais
- Núcleo de Pesquisa em Compostos Bioativos (NPCBio), Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, MG, 38400-902, Brazil
| | - Igor Andrade Santos
- Laboratório de Pesquisa em Antivirais, Instituto de Ciências Biomédicas (ICBIM), Universidade Federal de Uberlândia, MG, 38405-317, Uberlândia, Brazil
| | - Daniel Oliveira Silva Martins
- Laboratório de Pesquisa em Antivirais, Instituto de Ciências Biomédicas (ICBIM), Universidade Federal de Uberlândia, MG, 38405-317, Uberlândia, Brazil.,Universidade Estadual Paulista "Júlio de Mesquita Filho", São José Do Rio Preto, SP, 15054-000, Brazil
| | - Amanda Danuello
- Núcleo de Pesquisa em Compostos Bioativos (NPCBio), Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, MG, 38400-902, Brazil
| | - Vanderlan da Silva Bolzani
- Núcleo de Bioensaios, Biossíntese e Ecofisiologia de Produtos Naturais (NuBBE), Departamento de Química Orgânica, Instituto de Química, Universidade Estadual Paulista, P.O. Box 355, Araraquara, SP, 14801-970, Brazil
| | - Ana Carolina Gomes Jardim
- Laboratório de Pesquisa em Antivirais, Instituto de Ciências Biomédicas (ICBIM), Universidade Federal de Uberlândia, MG, 38405-317, Uberlândia, Brazil. .,Universidade Estadual Paulista "Júlio de Mesquita Filho", São José Do Rio Preto, SP, 15054-000, Brazil.
| | - Marcos Pivatto
- Núcleo de Pesquisa em Compostos Bioativos (NPCBio), Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, MG, 38400-902, Brazil.
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Verma J, Hasan A, Sunil S, Subbarao N. In silico identification and in vitro antiviral validation of potential inhibitors against Chikungunya virus. J Comput Aided Mol Des 2022; 36:521-536. [PMID: 35789450 DOI: 10.1007/s10822-022-00463-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 06/21/2022] [Indexed: 11/29/2022]
Abstract
The Chikungunya virus (CHIKV) has become endemic in the Africa, Asia and Indian subcontinent, with its continuous re-emergence causing a significant public health crisis. The unavailability of specific antivirals and vaccines against the virus has highlighted an urgent need for novel therapeutics. In the present study, we have identified small molecule inhibitors targeting the envelope proteins of the CHIKV to interfere with the fusion process, eventually inhibiting the cell entry of the virus particles. We employed high throughput computational screening of large datasets against two different binding sites in the E1-E2 dimer to identify potential candidate inhibitors. Among them, four high affinity inhibitors were selected to confirm their anti-CHIKV activity in the in vitro assay. Quercetin derivatives, Taxifolin and Rutin, binds to the E1-E2 dimer at different sites and display inhibition of CHIKV infection with EC50 values 3.6 μM and 87.67 μM, respectively. Another potential inhibitor with ID ChemDiv 8015-3006 binds at both the target sites and shows anti-CHIKV activity at EC50 = 41 μM. The results show dose-dependent inhibitory effects of Taxifolin, Rutin and ChemDiv 8015-3006 against the CHIKV with minimal cytotoxicity. In addition, molecular dynamics studies revealed the structural stability of these inhibitors at their respective binding sites in the E1-E2 protein. In conclusion, our study reports Taxifolin, Rutin and ChemDiv 8015-3006 as potential inhibitors of the CHIKV entry. Also, this study suggests a few potential candidate inhibitors which could serve as a template to design envelope protein specific CHIKV entry inhibitors.
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Affiliation(s)
- Jyoti Verma
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Abdul Hasan
- Vector Borne Diseases Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Sujatha Sunil
- Vector Borne Diseases Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India.
| | - Naidu Subbarao
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, India.
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18
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Repurposing drugs targeting epidemic viruses. Drug Discov Today 2022; 27:1874-1894. [DOI: 10.1016/j.drudis.2022.04.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/01/2022] [Accepted: 04/07/2022] [Indexed: 02/06/2023]
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19
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Hucke FIL, Bestehorn-Willmann M, Bassetto M, Brancale A, Zanetta P, Bugert JJ. CHIKV strains Brazil (wt) and Ross (lab-adapted) differ with regard to cell host range and antiviral sensitivity and show CPE in human glioblastoma cell lines U138 and U251. Virus Genes 2022; 58:188-202. [PMID: 35347588 PMCID: PMC8960095 DOI: 10.1007/s11262-022-01892-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 03/01/2022] [Indexed: 11/24/2022]
Abstract
Chikungunya virus (CHIKV), a (re)emerging arbovirus, is the causative agent of chikungunya fever. To date, no approved vaccine or specific antiviral therapy are available. CHIKV has repeatedly been responsible for serious economic and public health impacts in countries where CHIKV epidemics occurred. Antiviral tests in vitro are generally performed in Vero-B4 cells, a well characterised cell line derived from the kidney of an African green monkey. In this work we characterised a CHIKV patient isolate from Brazil (CHIKVBrazil) with regard to cell affinity, infectivity, propagation and cell damage and compared it with a high-passage lab strain (CHIKVRoss). Infecting various cell lines (Vero-B4, A549, Huh-7, DBTRG, U251, and U138) with both virus strains, we found distinct differences between the two viruses. CHIKVBrazil does not cause cytopathic effects (CPE) in the human hepatocarcinoma cell line Huh-7. Neither CHIKVBrazil nor CHIKVRoss caused CPE on A549 human lung epithelial cells. The human astrocyte derived glioblastoma cell lines U138 and U251 were found to be effective models for lytic infection with both virus strains and we discuss their predictive potential for neurogenic CHIKV disease. We also detected significant differences in antiviral efficacies regarding the two CHIKV strains. Generally, the antivirals ribavirin, hydroxychloroquine (HCQ) and T-1105 seem to work better against CHIKVBrazil in glioblastoma cells than in Vero-B4. Finally, full genome analyses of the CHIKV isolates were done in order to determine their lineage and possibly explain differences in tissue range and antiviral compound efficacies.
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Affiliation(s)
- Friederike I L Hucke
- Bundeswehr Institute of Microbiology, Neuherbergstraße 11, 80937, Munich, Germany.
| | | | - Marcella Bassetto
- Department of Chemistry, Faculty of Science and Engineering, Swansea University, Swansea, UK
| | - Andrea Brancale
- Cardiff School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, UK
| | - Paola Zanetta
- Laboratory of Applied Microbiology, Center for Translational Research on Allergic and Autoimmune Diseases (CAAD), Department of Health Sciences (DISS), School of Medicine, Università del Piemonte Orientale (UPO), 28100, Novara, Italy
| | - Joachim J Bugert
- Bundeswehr Institute of Microbiology, Neuherbergstraße 11, 80937, Munich, Germany
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Gray M, Guerrero-Arguero I, Solis-Leal A, Robison RA, Berges BK, Pickett BE. Chikungunya virus time course infection of human macrophages reveals intracellular signaling pathways relevant to repurposed therapeutics. PeerJ 2022; 10:e13090. [PMID: 35341048 PMCID: PMC8944338 DOI: 10.7717/peerj.13090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 02/18/2022] [Indexed: 01/12/2023] Open
Abstract
Background Chikungunya virus (CHIKV) is a mosquito-borne pathogen, within the Alphavirus genus of the Togaviridae family, that causes ~1.1 million human infections annually. CHIKV uses Aedes albopictus and Aedes aegypti mosquitoes as insect vectors. Human infections can develop arthralgia and myalgia, which results in debilitating pain for weeks, months, and even years after acute infection. No therapeutic treatments or vaccines currently exist for many alphaviruses, including CHIKV. Targeting the phagocytosis of CHIKV by macrophages after mosquito transmission plays an important role in early productive viral infection in humans, and could reduce viral replication and/or symptoms. Methods To better characterize the transcriptional response of macrophages during early infection, we generated RNA-sequencing data from a CHIKV-infected human macrophage cell line at eight or 24 hours post-infection (hpi), together with mock-infected controls. We then calculated differential gene expression, enriched functional annotations, modulated intracellular signaling pathways, and predicted therapeutic drugs from these sequencing data. Results We observed 234 pathways were significantly affected 24 hpi, resulting in six potential pharmaceutical treatments to modulate the affected pathways. A subset of significant pathways at 24 hpi includes AGE-RAGE, Fc epsilon RI, Chronic myeloid leukemia, Fc gamma R-mediated phagocytosis, and Ras signaling. We found that the MAPK1 and MAPK3 proteins are shared among this subset of pathways and that Telmisartan and Dasatinib are strong candidates for repurposed small molecule therapeutics that target human processes. The results of our analysis can be further characterized in the wet lab to contribute to the development of host-based prophylactics and therapeutics.
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Affiliation(s)
- Madison Gray
- Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
| | - Israel Guerrero-Arguero
- Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
- Population Health and Host-pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, Texas, United States of America
| | - Antonio Solis-Leal
- Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
- Population Health and Host-pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, Texas, United States of America
| | - Richard A. Robison
- Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
| | - Bradford K. Berges
- Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
| | - Brett E. Pickett
- Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
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Verma J, Subbarao N. In silico identification of small molecule protein-protein interaction inhibitors: targeting hotspot regions at the interface of MXRA8 and CHIKV envelope protein. J Biomol Struct Dyn 2022; 41:3349-3367. [PMID: 35272566 DOI: 10.1080/07391102.2022.2048080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Chikungunya virus (CHIKV) is an arthritogenic arbovirus responsible for re-emerging epidemics of Chikungunya fever around the world for centuries. Chikungunya has become endemic in Africa, Southeast Asia, the Indian subcontinent, and subtropical regions of the Americas. The unavailability of antiviral therapy or vaccine against the CHIKV and its continuous re-emergence demands an urgent need to develop potential candidate therapeutics. CHIKV entry into the host cell is mediated by its envelope proteins engaging the cellular receptor MXRA8 to invade the susceptible cells. We report here two essential target binding sites at the CHIKV E1-E2 proteins by identifying hotspot regions at the E1-E2-MXRA8 binding interface. Further, we employed high throughput computational screening to identify potential small molecule protein-protein interaction (PPI) modulators which could effectively bind at the identified target sites. Molecular dynamics simulations and binding free energy calculations confirmed the stability of three compounds, viz., ZINC299817498, ZINC584908978, and LAS52155651, at both the predicted interface binding sites. The polar and charged residues at the interface were responsible for energetically holding the ligands at the binding sites. Altogether, our findings suggest that the predicted target binding sites at the E1-E2 dimer could be essential to block the receptor interaction as well as the fusion process of the CHIKV particles. Thus, we identified a few small molecule PPI inhibitors with great potential to block the E1-E2-MXRA8 interaction and act as promising templates to design anti-CHIKV drugs.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Jyoti Verma
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Naidu Subbarao
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, India
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22
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Abdulaziz L, Elhadi E, Abdallah EA, Alnoor FA, Yousef BA. Antiviral Activity of Approved Antibacterial, Antifungal, Antiprotozoal and Anthelmintic Drugs: Chances for Drug Repurposing for Antiviral Drug Discovery. J Exp Pharmacol 2022; 14:97-115. [PMID: 35299994 PMCID: PMC8922315 DOI: 10.2147/jep.s346006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 02/28/2022] [Indexed: 11/29/2022] Open
Abstract
Drug repurposing process aims to identify new uses for the existing drugs to overcome traditional de novo drug discovery and development challenges. At the same time, as viral infections became a serious threat to humans and the viral organism itself has a high ability to mutate genetically, and due to serious adverse effects that result from antiviral drugs, there are crucial needs for the discovery of new antiviral drugs, and to identify new antiviral effects for the exciting approved drugs towards different types of viral infections depending on the observed antiviral activity in preclinical studies or clinical findings is one of the approaches to counter the viral infections problems. This narrative review article summarized mainly the published preclinical studies that evaluated the antiviral activity of drugs that are approved and used mainly as antibacterial, antifungal, antiprotozoal, and anthelmintic drugs, and the preclinical studies included the in silico, in vitro, and in vivo findings, additionally some clinical observations were also included while trying to relate them to the preclinical findings. Finally, the structure used for writing about the antiviral activity of the drugs was according to the families of the viruses used in the studies to form a better image for the target of antiviral activity of different drugs in the different kinds of viruses and to relate between the antiviral activity of the drugs against different strains of viruses within the same viral family.
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Affiliation(s)
- Leena Abdulaziz
- Department of Pharmacology, Faculty of Pharmacy, Omdurman Islamic University, Khartoum, 14415, Sudan
| | - Esraa Elhadi
- Department of Pharmacology, Faculty of Pharmacy, Omdurman Islamic University, Khartoum, 14415, Sudan
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing, 210009, People’s Republic of China
| | - Ejlal A Abdallah
- Department of Pharmacology and Pharmacy Practice, Faculty of Pharmacy, Sudan University of Science and Technology, Khartoum, 11111, Sudan
| | - Fadlalbaseer A Alnoor
- Department of Pharmacology, Faculty of Pharmacy, National University, Khartoum, 11111, Sudan
| | - Bashir A Yousef
- Department of Pharmacology, Faculty of Pharmacy, University of Khartoum, Khartoum, 11111, Sudan
- Correspondence: Bashir A Yousef, Department of Pharmacology, Faculty of Pharmacy, University of Khartoum, Al-Qasr Ave, Khartoum, 11111, Sudan, Tel +249 912932418, Fax +249 183780696, Email
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23
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Troost-Kind B, van Hemert MJ, van de Pol D, van der Ende-Metselaar H, Merits A, Borggrewe M, Rodenhuis-Zybert IA, Smit JM. Tomatidine reduces Chikungunya virus progeny release by controlling viral protein expression. PLoS Negl Trop Dis 2021; 15:e0009916. [PMID: 34762680 PMCID: PMC8664216 DOI: 10.1371/journal.pntd.0009916] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 12/10/2021] [Accepted: 10/16/2021] [Indexed: 12/13/2022] Open
Abstract
Tomatidine, a natural steroidal alkaloid from unripe green tomatoes has been shown to exhibit many health benefits. We recently provided in vitro evidence that tomatidine reduces the infectivity of Dengue virus (DENV) and Chikungunya virus (CHIKV), two medically important arthropod-borne human infections for which no treatment options are available. We observed a potent antiviral effect with EC50 values of 0.82 μM for DENV-2 and 1.3 μM for CHIKV-LR. In this study, we investigated how tomatidine controls CHIKV infectivity. Using mass spectrometry, we identified that tomatidine induces the expression of p62, CD98, metallothionein and thioredoxin-related transmembrane protein 2 in Huh7 cells. The hits p62 and CD98 were validated, yet subsequent analysis revealed that they are not responsible for the observed antiviral effect. In parallel, we sought to identify at which step of the virus replication cycle tomatidine controls virus infectivity. A strong antiviral effect was seen when in vitro transcribed CHIKV RNA was transfected into Huh7 cells treated with tomatidine, thereby excluding a role for tomatidine during CHIKV cell entry. Subsequent determination of the number of intracellular viral RNA copies and viral protein expression levels during natural infection revealed that tomatidine reduces the RNA copy number and viral protein expression levels in infected cells. Once cells are infected, tomatidine is not able to interfere with active RNA replication yet it can reduce viral protein expression. Collectively, the results delineate that tomatidine controls viral protein expression to exert its antiviral activity. Lastly, sequential passaging of CHIKV in presence of tomatidine did not lead to viral resistance. Collectively, these results further emphasize the potential of tomatidine as an antiviral treatment towards CHIKV infection. Chikungunya fever is a debilitating disease caused by the mosquito-borne Chikungunya virus. Over the past two decades the geographical spread of the virus and its mosquito vector has drastically increased thereby causing millions of infections. To date there is no antiviral drug and no vaccine available to treat/prevent Chikungunya virus infection. We recently showed that the natural steroidal alkaloid tomatidine has potent antiviral activity towards Chikungunya virus at submicromolar concentrations. In this study we dissected how tomatidine reduces the production of Chikungunya virus particles. We show that tomatidine lowers viral protein expression and we hypothesize that the effect of tomatidine on viral protein translation hampers the production of progeny viral RNA copies / number of infected cells thereby leading to a reduced production of secreted virus particles. Also, we show that Chikungunya virus does not readily become resistant to tomatidine. Collectively, we deciphered the mechanism by which tomatidine exerts antiviral activity to Chikungunya virus and our results strengthen the potential of tomatidine as an antiviral treatment strategy towards Chikungunya virus.
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Affiliation(s)
- Berit Troost-Kind
- Department of Medical Microbiology and Infection Prevention, University of Groningen; University Medical Center Groningen; Groningen, the Netherlands
| | - Martijn J. van Hemert
- Department of Medical Microbiology, Molecular Virology Laboratory, Leiden University Medical Center, Leiden, the Netherlands
| | - Denise van de Pol
- Department of Medical Microbiology and Infection Prevention, University of Groningen; University Medical Center Groningen; Groningen, the Netherlands
| | - Heidi van der Ende-Metselaar
- Department of Medical Microbiology and Infection Prevention, University of Groningen; University Medical Center Groningen; Groningen, the Netherlands
| | - Andres Merits
- Institute of Technology, University of Tartu, Tartu, Estonia
| | - Malte Borggrewe
- Department of Biomedical Sciences of Cells & Systems, Section Molecular Neurobiology, University of Groningen; University Medical Center Groningen; Groningen, the Netherlands
| | - Izabela A. Rodenhuis-Zybert
- Department of Medical Microbiology and Infection Prevention, University of Groningen; University Medical Center Groningen; Groningen, the Netherlands
| | - Jolanda M. Smit
- Department of Medical Microbiology and Infection Prevention, University of Groningen; University Medical Center Groningen; Groningen, the Netherlands
- * E-mail:
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Deng J, Zhou F, Heybati K, Ali S, Zuo QK, Hou W, Dhivagaran T, Ramaraju HB, Chang O, Wong CY, Silver Z. Efficacy of chloroquine and hydroxychloroquine for the treatment of hospitalized COVID-19 patients: a meta-analysis. Future Virol 2021; 17:10.2217/fvl-2021-0119. [PMID: 34887938 PMCID: PMC8647998 DOI: 10.2217/fvl-2021-0119] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 11/11/2021] [Indexed: 02/06/2023]
Abstract
Aims: To evaluate the efficacy and safety of hydroxychloroquine/chloroquine, with or without azithromycin, in treating hospitalized COVID-19 patients. Materials & methods: Data from randomized and observational studies were included in a random-effects meta-analysis. Primary outcomes included time to negative conversion of SARS-CoV-2 tests, length of stay, mortality, incidence of mechanical ventilation, time to normalization of body temperature, incidence of adverse events and incidence of QT prolongations. Results: Fifty-one studies (n = 61,221) were included. Hydroxychloroquine/chloroquine showed no efficacy in all primary efficacy outcomes, but was associated with increased odds of QT prolongations. Conclusion: Due to a lack of efficacy and increased odds of cardiac adverse events, hydroxychloroquine/chloroquine should not be used for treating hospitalized COVID-19 patients.
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Affiliation(s)
- Jiawen Deng
- Faculty of Health Sciences, McMaster University, 1280 Main St W, Hamilton, ON, L8S 4L8, Canada
| | - Fangwen Zhou
- Faculty of Health Sciences, McMaster University, 1280 Main St W, Hamilton, ON, L8S 4L8, Canada
| | - Kiyan Heybati
- Faculty of Health Sciences, McMaster University, 1280 Main St W, Hamilton, ON, L8S 4L8, Canada
- Mayo Clinic Alix School of Medicine, Mayo Clinic, 200 1st St SW, Rochester, MN 55905, USA
| | - Saif Ali
- Faculty of Health Sciences, McMaster University, 1280 Main St W, Hamilton, ON, L8S 4L8, Canada
| | - Qi Kang Zuo
- Department of Anesthesiology, Rutgers, New Jersey Medical School, 185 S Orange Ave, Newark, NJ 07103, USA
- Faculty of Science, McGill University, 845 Sherbrooke St W, Montreal, QC, H3A 0G5, Canada
| | - Wenteng Hou
- Faculty of Health Sciences, McMaster University, 1280 Main St W, Hamilton, ON, L8S 4L8, Canada
| | - Thanansayan Dhivagaran
- Faculty of Health Sciences, McMaster University, 1280 Main St W, Hamilton, ON, L8S 4L8, Canada
- Integrated Biomedical Engineering & Health Sciences Program (iBioMed), McMaster University, 1280 Main St W, Hamilton, ON, L8S 4L8, Canada
| | | | - Oswin Chang
- Faculty of Health Sciences, McMaster University, 1280 Main St W, Hamilton, ON, L8S 4L8, Canada
| | - Chi Yi Wong
- Faculty of Health Sciences, McMaster University, 1280 Main St W, Hamilton, ON, L8S 4L8, Canada
| | - Zachary Silver
- Faculty of Science, Carleton University, 1125 Colonel By Dr, Ottawa, ON, K1S 5B6, Canada
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25
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Chan SM, Khoo KS, Sekaran SD, Sit NW. Mode-Dependent Antiviral Activity of Medicinal Plant Extracts against the Mosquito-Borne Chikungunya Virus. PLANTS 2021; 10:plants10081658. [PMID: 34451702 PMCID: PMC8400731 DOI: 10.3390/plants10081658] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 07/23/2021] [Accepted: 07/26/2021] [Indexed: 11/22/2022]
Abstract
The lack of specific treatment for chikungunya fever makes the need for anti-chikungunya virus agents more crucial. This study was conducted to evaluate 132 extracts obtained by sequential solvent extraction from 21 medicinal plants for cytopathic effect inhibitory activity using virus-infected Vero cells in two different sample introduction modes. Among the extracts, 42 extracts (31.8%) from 12 plants in the concurrent mode and three extracts (2.3%) from a plant in the non-concurrent mode displayed strong cytopathic effect inhibitory activity (cell viability ≥70%). Viral load quantification analysis unveiled that the extracts of Clinacanthus nutans (chloroform, ethyl acetate, and ethanol), Hydrocotyle sibthorpioides (ethanol), and Ocimum americanum (ethanol and methanol) hindered the release of viral progeny from the infected cells while the extracts of Ficus deltoidea (ethanol), Gynura bicolor (water), H. sibthorpioides (water), and O. americanum (chloroform and ethyl acetate) blocked the entry of virus into the cells. The extracts of Diodella sarmentosa (ethyl acetate), Diplazium esculentum (chloroform, ethyl acetate, and ethanol), and G. bicolor (ethanol) possessed virucidal effect and caused 5.41-log to 6.63-log reductions of viral load compared to the virus control. The results indicate that these medicinal plants are potential sources of anti-chikungunya virus agents that have varied modes of action.
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Affiliation(s)
- Sze Mun Chan
- Department of Allied Health Sciences, Faculty of Science, Universiti Tunku Abdul Rahman, Bandar Barat, Kampar 31900, Malaysia;
| | - Kong Soo Khoo
- Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Bandar Barat, Kampar 31900, Malaysia;
| | - Shamala Devi Sekaran
- Faculty of Medicine & Health Sciences, UCSI University, Bandar Springhill, Port Dickson 71010, Malaysia;
| | - Nam Weng Sit
- Department of Allied Health Sciences, Faculty of Science, Universiti Tunku Abdul Rahman, Bandar Barat, Kampar 31900, Malaysia;
- Correspondence: or
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Hasan A, Jannat K, Bondhon TA, Jahan R, Hossan MS, de Lourdes Pereira M, Nissapatorn V, Wiart C, Rahmatullah M. Can Antimalarial Phytochemicals be a Possible Cure for COVID-19? Molecular Docking Studies of Some Phytochemicals to SARS-CoV-2 3C-like Protease. Infect Disord Drug Targets 2021; 22:e290721195143. [PMID: 34376138 DOI: 10.2174/1871526521666210729164054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 02/04/2021] [Accepted: 02/18/2021] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To evaluate the efficacy of reported anti-malarial phytochemicals as lead compounds for possible drug development against COVID-19. METHODS An in silico approach was used in this study to determine through molecular docking the binding affinities and site of binding of these phytochemicals to the 3C-like protease of COVID-19 which is considered as the main protease of the virus. RESULTS A number of anti-malarial phytochemicals like apigenin-7-O-glucoside, decurvisine, luteolin-7-O-glucoside, sargabolide J, and shizukaols A, B, F, and G showed predicted high binding energies with G values of -8.0 kcal/mol or higher. Shizukaols F and B demonstrated the best binding energies of -9.5 and -9.8, respectively. The acridone alkaloid 5-hydroxynoracronycine also gave a predicted high binding energy of -7.9 kcal/mol. CONCLUSION This is for the first time that decursivine and several shizukaols were reported as potential anti-viral agents. These compounds merit further studies to determine whether they can be effective drug candidates against COVID-19.
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Affiliation(s)
- Anamul Hasan
- Department of Biotechnology and Genetic Engineering, University of Development Alternative, Lamatia, Dhaka-1207, Bangladesh
| | - Khoshnur Jannat
- Department of Biotechnology and Genetic Engineering, University of Development Alternative, Lamatia, Dhaka-1207, Bangladesh
| | - Tohmina Afroze Bondhon
- Department of Biotechnology and Genetic Engineering, University of Development Alternative, Lamatia, Dhaka-1207, Bangladesh
| | - Rownak Jahan
- Department of Biotechnology and Genetic Engineering, University of Development Alternative, Lamatia, Dhaka-1207, Bangladesh
| | - Md Shahadat Hossan
- Biodiscovery Institute, School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD. United Kingdom
| | - Maria de Lourdes Pereira
- CICECO-Aveiro Institute of Materials & Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | - Veeranoot Nissapatorn
- School of Allied Health Sciences, World Union for Herbal Drug Discovery (WUHeDD), and Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat. Thailand
| | - Christophe Wiart
- School of Pharmacy, University of Nottingham Malaysia Campus, Selangor, Malaysia
| | - Mohammed Rahmatullah
- Department of Biotechnology and Genetic Engineering, University of Development Alternative, Lamatia, Dhaka-1207, Bangladesh
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Battisti V, Urban E, Langer T. Antivirals against the Chikungunya Virus. Viruses 2021; 13:1307. [PMID: 34372513 PMCID: PMC8310245 DOI: 10.3390/v13071307] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 06/28/2021] [Accepted: 06/30/2021] [Indexed: 01/20/2023] Open
Abstract
Chikungunya virus (CHIKV) is a mosquito-transmitted alphavirus that has re-emerged in recent decades, causing large-scale epidemics in many parts of the world. CHIKV infection leads to a febrile disease known as chikungunya fever (CHIKF), which is characterised by severe joint pain and myalgia. As many patients develop a painful chronic stage and neither antiviral drugs nor vaccines are available, the development of a potent CHIKV inhibiting drug is crucial for CHIKF treatment. A comprehensive summary of current antiviral research and development of small-molecule inhibitor against CHIKV is presented in this review. We highlight different approaches used for the identification of such compounds and further discuss the identification and application of promising viral and host targets.
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Affiliation(s)
| | | | - Thierry Langer
- Department of Pharmaceutical Sciences, Pharmaceutical Chemistry Division, University of Vienna, A-1090 Vienna, Austria; (V.B.); (E.U.)
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28
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Persoons L, Vanderlinden E, Vangeel L, Wang X, Do NDT, Foo SYC, Leyssen P, Neyts J, Jochmans D, Schols D, De Jonghe S. Broad spectrum anti-coronavirus activity of a series of anti-malaria quinoline analogues. Antiviral Res 2021; 193:105127. [PMID: 34217752 PMCID: PMC8247284 DOI: 10.1016/j.antiviral.2021.105127] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/26/2021] [Accepted: 06/30/2021] [Indexed: 01/18/2023]
Abstract
In this study, a series of 10 quinoline analogues was evaluated for their in vitro antiviral activity against a panel of alpha- and beta-coronaviruses, including the severe acute respiratory syndrome coronaviruses 1 and 2 (SARS-CoV-1 and SARS-CoV-2), as well as the human coronaviruses (HCoV) 229E and OC43. Chloroquine and hydroxychloroquine were the most potent with antiviral EC50 values in the range of 0.12-12 μM. Chloroquine displayed the most favorable selectivity index (i.e. ratio cytotoxic versus antiviral concentration), being 165 for HCoV-OC43 in HEL cells. Potent anti-coronavirus activity was also observed with amodiaquine, ferroquine and mefloquine, although this was associated with substantial cytotoxicity for mefloquine. Primaquine, quinidine, quinine and tafenoquine only blocked coronavirus replication at higher concentrations, while piperaquine completely lacked antiviral and cytotoxic effects. A time-of-addition experiment in HCoV-229E-infected HEL cells revealed that chloroquine interferes with viral entry at a post-attachment stage. Using confocal microscopy, no viral RNA synthesis could be detected upon treatment of SARS-CoV-2-infected cells with chloroquine. The inhibition of SARS-CoV-2 replication by chloroquine and hydroxychloroquine coincided with an inhibitory effect on the autophagy pathway as visualized by a dose-dependent increase in LC3-positive puncta. The latter effect was less pronounced or even absent with the other quinolines. In summary, we showed that several quinoline analogues, including chloroquine, hydroxychloroquine, amodiaquine, ferroquine and mefloquine, exhibit broad anti-coronavirus activity in vitro.
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Affiliation(s)
- Leentje Persoons
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, Leuven, Belgium
| | - Evelien Vanderlinden
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, Leuven, Belgium.
| | - Laura Vangeel
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, Leuven, Belgium
| | - Xinyu Wang
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, Leuven, Belgium
| | - Nguyen Dan Thuc Do
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, Leuven, Belgium
| | - Shi-Yan Caroline Foo
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, Leuven, Belgium
| | - Pieter Leyssen
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, Leuven, Belgium
| | - Johan Neyts
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, Leuven, Belgium
| | - Dirk Jochmans
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, Leuven, Belgium
| | - Dominique Schols
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, Leuven, Belgium
| | - Steven De Jonghe
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, Herestraat 49, Leuven, Belgium
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Abstract
Chikungunya fever (CHIKF) is an arbovirus disease caused by chikungunya virus (CHIKV), an alphavirus of Togaviridae family. Transmission follows a human-mosquito-human cycle starting with a mosquito bite. Subsequently, symptoms develop after 2-6 days of incubation, including high fever and severe arthralgia. The disease is self-limiting and usually resolve within 2 weeks. However, chronic disease can last up to several years with persistent polyarthralgia. Overlapping symptoms and common vector with dengue and malaria present many challenges for diagnosis and treatment of this disease. CHIKF was reported in India in 1963 for the first time. After a period of quiescence lasting up to 32 years, CHIKV re-emerged in India in 2005. Currently, every part of the country has become endemic for the disease with outbreaks resulting in huge economic and productivity losses. Several mutations have been identified in circulating strains of the virus resulting in better adaptations or increased fitness in the vector(s), effective transmission, and disease severity. CHIKV evolution has been a significant driver of epidemics in India, hence, the need to focus on proper surveillance, and implementation of prevention and control measure in the country. Presently, there are no licensed vaccines or antivirals available; however, India has initiated several efforts in this direction including traditional medicines. In this review, we present the current status of CHIKF in India.
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Silva LR, Rodrigues ÉEDS, Taniele-Silva J, Anderson L, Araújo-Júnior JXD, Bassi ÊJ, Silva-Júnior EFD. Targeting Chikungunya Virus Entry: alternatives for new inhibitors in drug discovery. Curr Med Chem 2021; 29:612-634. [PMID: 34165405 DOI: 10.2174/0929867328666210623165005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 04/06/2021] [Accepted: 05/11/2021] [Indexed: 11/22/2022]
Abstract
Chikungunya virus (CHIKV) is an Alphavirus (Togaviridae) responsible for Chikungunya fever (CHIKF) that is mainly characterized by a severe polyarthralgia, in which it is transmitted by the bite of infected Aedes aegypti and Ae. albopictus mosquitoes. Nowadays, there no licensed vaccines or approved drugs to specifically treat this viral disease. Structural viral proteins participate in key steps of its replication cycle, such as viral entry, membrane fusion, nucleocapsid assembly, and virus budding. In this context, envelope E3-E2-E1 glycoproteins complex could be targeted for designing new drug candidates. In this review, aspects of the CHIKV entry process are discussed to provide insights to assist the drug discovery process. Moreover, several natural, nature-based and synthetic compounds, as well as repurposed drugs and virtual screening, are also explored as alternatives for developing CHIKV entry inhibitors. Finally, we provided a complimentary analysis of studies involving inhibitors that were not explored by in silico methods. Based on this, Phe118, Val179, and Lys181 were found to be the most frequent residues, being present in 89.6, 82.7, and 93.1% of complexes, respectively. Lastly, some chemical aspects associated with interactions of these inhibitors and mature envelope E3-E2-E1 glycoproteins' complex were discussed to provide data for scientists worldwide, supporting their search for new inhibitors against this emerging arbovirus.
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Affiliation(s)
- Leandro Rocha Silva
- Chemistry and Biotechnology Institute, Federal University of Alagoas, Campus A.C. Simões, Lourival Melo Mota Avenue, Maceió 57072-970, Brazil
| | - Érica Erlanny da Silva Rodrigues
- Chemistry and Biotechnology Institute, Federal University of Alagoas, Campus A.C. Simões, Lourival Melo Mota Avenue, Maceió 57072-970, Brazil
| | - Jamile Taniele-Silva
- IMUNOREG - Immunoregulation Research Group, Laboratory of Research in Virology and Immunology, Institute of Biological Sciences and Health, Federal University of Alagoas, Campus AC. Simões, Lourival Melo Mota Avenue, Maceió 57072-970, Brazil
| | - Letícia Anderson
- IMUNOREG - Immunoregulation Research Group, Laboratory of Research in Virology and Immunology, Institute of Biological Sciences and Health, Federal University of Alagoas, Campus AC. Simões, Lourival Melo Mota Avenue, Maceió 57072-970, Brazil
| | - João Xavier de Araújo-Júnior
- Chemistry and Biotechnology Institute, Federal University of Alagoas, Campus A.C. Simões, Lourival Melo Mota Avenue, Maceió 57072-970, Brazil
| | - Ênio José Bassi
- IMUNOREG - Immunoregulation Research Group, Laboratory of Research in Virology and Immunology, Institute of Biological Sciences and Health, Federal University of Alagoas, Campus AC. Simões, Lourival Melo Mota Avenue, Maceió 57072-970, Brazil
| | - Edeildo F da Silva-Júnior
- Chemistry and Biotechnology Institute, Federal University of Alagoas, Campus A.C. Simões, Lourival Melo Mota Avenue, Maceió 57072-970, Brazil
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31
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Old drugs for a new indication: a review of chloroquine and analogue in COVID-19 treatment. Porto Biomed J 2021; 6:e132. [PMID: 34136717 PMCID: PMC8202634 DOI: 10.1097/j.pbj.0000000000000132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/12/2021] [Accepted: 01/25/2021] [Indexed: 12/27/2022] Open
Abstract
As an innovative therapeutic strategy, drug repurposing affords old, approved, and already established drugs a chance at new indications. In the wake of the COVID-19 pandemic and the accompanied urgency for a lasting treatment, drug repurposing has come in handy to stem the debilitating effects of the disease. Among other therapeutic options currently in clinical trials, chloroquine (CQ) and the hydroxylated analogue, hydroxychloroquine (HCQ) have been frontline therapeutic options in most formal and informal clinical settings with varying degrees of efficacy against this life-threatening disease. Their status in randomized clinical trials is related to the biochemical and pharmacological profiles as validated by in vitro, in vivo and case studies. With the aim to bear a balance for their use in the long run, this review not only synopsizes findings from recent studies on the degrees of efficacy and roles of CQ/HCQ as potential anti-COVID-19 agents but also highlights our perspectives for their consideration in rational drug repositioning and use.
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32
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Shin CH, Kim KH, Jeeva S, Kang SM. Towards Goals to Refine Prophylactic and Therapeutic Strategies Against COVID-19 Linked to Aging and Metabolic Syndrome. Cells 2021; 10:1412. [PMID: 34204163 PMCID: PMC8227274 DOI: 10.3390/cells10061412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/28/2021] [Accepted: 06/03/2021] [Indexed: 02/06/2023] Open
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) gave rise to the coronavirus disease 2019 (COVID-19) pandemic. A strong correlation has been demonstrated between worse COVID-19 outcomes, aging, and metabolic syndrome (MetS), which is primarily derived from obesity-induced systemic chronic low-grade inflammation with numerous complications, including type 2 diabetes mellitus (T2DM). The majority of COVID-19 deaths occurs in people over the age of 65. Individuals with MetS are inclined to manifest adverse disease consequences and mortality from COVID-19. In this review, we examine the prevalence and molecular mechanisms underlying enhanced risk of COVID-19 in elderly people and individuals with MetS. Subsequently, we discuss current progresses in treating COVID-19, including the development of new COVID-19 vaccines and antivirals, towards goals to elaborate prophylactic and therapeutic treatment options in this vulnerable population.
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Affiliation(s)
- Chong-Hyun Shin
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA; (K.-H.K.); (S.J.)
| | | | | | - Sang-Moo Kang
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA; (K.-H.K.); (S.J.)
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33
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Das S, Ramachandran AK, Birangal SR, Akbar S, Ahmed B, Joseph A. The controversial therapeutic journey of chloroquine and hydroxychloroquine in the battle against SARS-CoV-2: A comprehensive review. MEDICINE IN DRUG DISCOVERY 2021; 10:100085. [PMID: 33846702 PMCID: PMC8026171 DOI: 10.1016/j.medidd.2021.100085] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/09/2021] [Accepted: 02/20/2021] [Indexed: 12/24/2022] Open
Abstract
Recently, the pandemic outbreak of a novel coronavirus, officially termed as severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), indicated by a pulmonary infection in humans, has become one of the most significant challenges for public health. In the current fight against coronavirus disease-2019, the medical and health authorities across the world focused on quick diagnosis and isolation of patients; meanwhile, researchers worldwide are exploring the possibility of developing vaccines and novel therapeutic options to combat this deadly disease. Recently, based on various small clinical observations, uncontrolled case studies and previously reported antiviral activity against SARS-CoV-1 chloroquine (CQ) and hydroxychloroquine (HCQ) have attracted exceptional consideration as possible therapeutic agents against SARS-CoV-2. However, there are reports on little to no effect of CQ or HCQ against SARS-CoV-2, and many reports have raised concerns about their cardiac toxicity. Here, in this review, we examine the chemistry, molecular mechanism, and pharmacology, including the current scenario and future prospects of CQ or HCQ in the treatment of SARS-CoV-2.
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Affiliation(s)
- Subham Das
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
- Manipal McGill Centre for Infectious Diseases, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Anu Kunnath Ramachandran
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Sumit Raosaheb Birangal
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Saleem Akbar
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Bahar Ahmed
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Alex Joseph
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
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34
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Li X, Peng T. Strategy, Progress, and Challenges of Drug Repurposing for Efficient Antiviral Discovery. Front Pharmacol 2021; 12:660710. [PMID: 34017257 PMCID: PMC8129523 DOI: 10.3389/fphar.2021.660710] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/16/2021] [Indexed: 12/17/2022] Open
Abstract
Emerging or re-emerging viruses are still major threats to public health. Prophylactic vaccines represent the most effective way to prevent virus infection; however, antivirals are more promising for those viruses against which vaccines are not effective enough or contemporarily unavailable. Because of the slow pace of novel antiviral discovery, the high disuse rates, and the substantial cost, repurposing of the well-characterized therapeutics, either approved or under investigation, is becoming an attractive strategy to identify the new directions to treat virus infections. In this review, we described recent progress in identifying broad-spectrum antivirals through drug repurposing. We defined the two major categories of the repurposed antivirals, direct-acting repurposed antivirals (DARA) and host-targeting repurposed antivirals (HTRA). Under each category, we summarized repurposed antivirals with potential broad-spectrum activity against a variety of viruses and discussed the possible mechanisms of action. Finally, we proposed the potential investigative directions of drug repurposing.
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Affiliation(s)
- Xinlei Li
- State Key Laboratory of Respiratory Disease, Sino-French Hoffmann Institute, College of Basic Medicine, Guangzhou Medical University, Guangzhou, China
| | - Tao Peng
- State Key Laboratory of Respiratory Disease, Sino-French Hoffmann Institute, College of Basic Medicine, Guangzhou Medical University, Guangzhou, China
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35
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Islamuddin M, Afzal O, Khan WH, Hisamuddin M, Altamimi ASA, Husain I, Kato K, Alamri MA, Parveen S. Inhibition of Chikungunya Virus Infection by 4-Hydroxy-1-Methyl-3-(3-morpholinopropanoyl)quinoline-2(1 H)-one (QVIR) Targeting nsP2 and E2 Proteins. ACS OMEGA 2021; 6:9791-9803. [PMID: 33869959 PMCID: PMC8047676 DOI: 10.1021/acsomega.1c00447] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 03/23/2021] [Indexed: 06/12/2023]
Abstract
The re-emergence of Chikungunya virus (CHIKV) infection in humans with no approved antiviral therapies or vaccines is one of the major problems with global significance. In the present investigation, we screened 80 in-house quinoline derivatives for their anti-CHIKV activity by computational techniques and found 4-hydroxy-1-methyl-3-(3-morpholinopropanoyl)quinoline-2(1H)-one (QVIR) to have potential binding affinities with CHIKV nsP2 and E2 glycoproteins. QVIR was evaluated in vitro for its anti-CHIKV potential. QVIR showed strong inhibition of CHIKV infection with an EC50 (50% effective concentration) value of 2.2 ± 0.49 μM without significant cytotoxicity (CC50 > 200 μM) and was chosen for further elucidation of its antiviral mechanism. The infectious viral particle formation was abolished by approximately 72% at a QVIR concentration of 20 μM during infection in the BHK-21 cell line, and the CHIKV RNA synthesis was diminished by 84% for nsP2 as well as 74% for E2, whereas the levels of viral proteins were decreased by 69.9% for nsP2 and 53.9% for E2. Flow cytometry analysis confirmed a huge decline in the expression of viral nsP2 and E2 proteins by 71.84 and 67.7%, respectively. Time of addition experiments indicated that QVIR inhibited viral infection at early and late stages of viral replication cycle, and the optimal inhibition was observed at 16 h post infection. The present study advocates for the first time that QVIR acts as a substantial and potent inhibitor against CHIKV and might be as an auspicious novel drug candidate for the development of therapeutic agents against CHIKV infections.
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Affiliation(s)
- Mohammad Islamuddin
- Molecular
Virology Laboratory, Centre for Interdisciplinary Research in Basic
Sciences, Jamia Millia Islamia, New Delhi 110025, India
- Laboratory
of Sustainable Animal Environment, Graduate School of Agricultural
Science, Tohoku University, Osaki, Miyagi 989-6711, Japan
| | - Obaid Afzal
- Department
of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Wajihul Hasan Khan
- Kusuma
School of Biological Sciences, Indian Institute
of Technology (IIT), New Delhi 110016, India
| | - Malik Hisamuddin
- Molecular
Virology Laboratory, Centre for Interdisciplinary Research in Basic
Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | | | - Ibraheem Husain
- Department
of Pharmacology, School of Pharmaceutical and Research, Hamdard University, New Delhi 110062, India
| | - Kentaro Kato
- Laboratory
of Sustainable Animal Environment, Graduate School of Agricultural
Science, Tohoku University, Osaki, Miyagi 989-6711, Japan
| | - Mubarak A. Alamri
- Department
of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Shama Parveen
- Molecular
Virology Laboratory, Centre for Interdisciplinary Research in Basic
Sciences, Jamia Millia Islamia, New Delhi 110025, India
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36
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Repurposing Drugs for Mayaro Virus: Identification of EIDD-1931, Favipiravir and Suramin as Mayaro Virus Inhibitors. Microorganisms 2021; 9:microorganisms9040734. [PMID: 33807492 PMCID: PMC8065421 DOI: 10.3390/microorganisms9040734] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/25/2021] [Accepted: 03/29/2021] [Indexed: 12/21/2022] Open
Abstract
Despite the emerging threat of the Mayaro virus (MAYV) in Central and South-America, there are no licensed antivirals or vaccines available for this neglected mosquito-borne virus. Here, we optimized a robust antiviral assay based on the inhibition of the cytopathogenic effect that could be used for high-throughput screening to identify MAYV inhibitors. We first evaluated different cell lines and virus inputs to determine the best conditions for a reliable and reproducible antiviral assay. Next, we used this assay to evaluate a panel of antiviral compounds with known activity against other arboviruses. Only three drugs were identified as inhibitors of MAYV: β-D-N4-hydroxycytidine (EIDD-1931), favipiravir and suramin. The in vitro anti-MAYV activity of these antiviral compounds was further confirmed in a virus yield assay. These antivirals can therefore serve as reference compounds for future anti-MAYV compound testing. In addition, it is of interest to further explore the activity of EIDD-1931 and its orally bioavailable pro-drug molnupiravir in animal infection models to determine whether it offers promise for the treatment of MAYV infection.
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37
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Kumar D, Kumari K, Chandra R, Jain P, Vodwal L, Gambhir G, Singh P. A review targeting the infection by CHIKV using computational and experimental approaches. J Biomol Struct Dyn 2021; 40:8127-8141. [PMID: 33783313 DOI: 10.1080/07391102.2021.1904004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The rise of normal body temperature of 98.6 °F beyond 100.4 °F in humans indicates fever due to some illness or infection. Viral infections caused by different viruses are one of the major causes of fever. One of such viruses is, Chikungunya virus (CHIKV) is known to cause Chikungunya fever (CHIKF) which is transmitted to humans through the mosquitoes, which actually become the primary source of transmission of the virus. The genomic structure of the CHIKV consists of the two open reading frames (ORFs). The first one is a 5' end ORF and it encodes the nonstructural protein (nsP1-nsP4). The second is a 3' end ORF and it encodes the structural proteins, which is consisted of capsid, envelope (E), accessory peptides, E3 and 6 K. Till date, there is no effective vaccine or medicine available for early detection of the CHIKV infection and appropriate diagnosis to cure the patients from the infection. NSP3 of CHIKV is the prime target of the researchers as it is responsible for the catalytic activity. This review has updates of literature on CHIKV; pathogenesis of CHIKV; inhibition of CHIKV using theoretical and experimental approaches.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Durgesh Kumar
- Department of Chemistry, Atma Ram Sanatan Dharma College, University of Delhi, New Delhi, India.,Department of Chemistry, University of Delhi, Delhi, India
| | - Kamlesh Kumari
- Department of Zoology, Deen Dayal Upadhyaya College, University of Delhi, New Delhi, India
| | - Ramesh Chandra
- Department of Chemistry, University of Delhi, Delhi, India
| | - Pallavi Jain
- Faculty of Engineering and Technology, Department of Chemistry, SRM Institute of Science and Technology, Delhi-NCR Campus, Modinagar, Ghaziabad, Uttar Pradesh, India
| | - Lata Vodwal
- Department of Chemistry, Maitreyi College, University of Delhi, New Delhi, India
| | - Geetu Gambhir
- Department of Chemistry, Acharya Narendra Dev College, University of Delhi, New Delhi, India
| | - Prashant Singh
- Department of Chemistry, Atma Ram Sanatan Dharma College, University of Delhi, New Delhi, India
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Vergote V, Laenen L, Mols R, Augustijns P, Van Ranst M, Maes P. Chloroquine, an Anti-Malaria Drug as Effective Prevention for Hantavirus Infections. Front Cell Infect Microbiol 2021; 11:580532. [PMID: 33791230 PMCID: PMC8006394 DOI: 10.3389/fcimb.2021.580532] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 02/15/2021] [Indexed: 01/14/2023] Open
Abstract
We investigated whether chloroquine can prevent hantavirus infection and disease in vitro and in vivo, using the Hantaan virus newborn C57BL/6 mice model and the Syrian hamster model for Andes virus. In vitro antiviral experiments were performed using Vero E6 cells, and Old World and New World hantavirus species. Hantavirus RNA was detected using quantitative RT-PCR. For all hantavirus species tested, results indicate that the IC50 of chloroquine (mean 10.2 ± 1.43 μM) is significantly lower than the CC50 (mean 260 ± 2.52 μM) yielding an overall selectivity index of 25.5. We also investigated the potential of chloroquine to prevent death in newborn mice after Hantaan virus infection and its antiviral effect in the hantavirus Syrian hamster model. For this purpose, C57Bl/6 mother mice were treated subcutaneously with daily doses of chloroquine. Subsequently, 1-day-old suckling mice were inoculated intracerebrally with 5 x 102 Hantaan virus particles. In litters of untreated mothers, none of the pups survived challenge. The highest survival rate (72.7% of pups) was found when mother mice were administered a concentration of 10 mg/kg chloroquine. Survival rates declined in a dose-dependent manner, with 47.6% survival when treated with 5 mg/kg chloroquine, and 4.2% when treated with 1 mg/kg chloroquine. Assessing the antiviral therapeutic and prophylactic effect of chloroquine in the Syrian hamster model was done using two different administration routes (intraperitoneally and subcutaneously using an osmotic pump system). Evaluating the prophylactic effect, a delay in onset of disease was noted and for the osmotic pump, 60% survival was observed. Our results show that chloroquine can be highly effective against Hantaan virus infection in newborn mice and against Andes virus in Syrian hamsters.
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Affiliation(s)
- Valentijn Vergote
- Laboratory of Clinical Virology, Zoonotic Infectious Diseases Unit, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Lies Laenen
- Laboratory of Clinical Virology, Zoonotic Infectious Diseases Unit, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Raf Mols
- Department of Pharmaceutical and Pharmacological Sciences, Drug Delivery and Disposition, KU Leuven, Leuven, Belgium
| | - Patrick Augustijns
- Department of Pharmaceutical and Pharmacological Sciences, Drug Delivery and Disposition, KU Leuven, Leuven, Belgium
| | - Marc Van Ranst
- Laboratory of Clinical Virology, Zoonotic Infectious Diseases Unit, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Piet Maes
- Laboratory of Clinical Virology, Zoonotic Infectious Diseases Unit, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
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39
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Sinha M, Gupta A, Gupta S, Singh P, Pandit S, Chauhan SS, Parthasarathi R. Analogue discovery of safer alternatives to HCQ and CQ drugs for SAR-CoV-2 by computational design. Comput Biol Med 2021; 130:104222. [PMID: 33535144 PMCID: PMC7817420 DOI: 10.1016/j.compbiomed.2021.104222] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 01/13/2021] [Accepted: 01/13/2021] [Indexed: 12/16/2022]
Abstract
COVID-19 outbreak poses a severe health emergency to the global community. Due to availability of limited data, the selection of an effective treatment is a challenge. Hydroxychloroquine (HCQ), a chloroquine (CQ) derivative administered for malaria and autoimmune diseases, has been shown to be effective against both Severe Acute Respiratory Syndrome (SARS-CoV-1) and SARS-CoV-2. Apart from the known adverse effects of these drugs, recently the use of CQ and HCQ as a potential treatment for COVID-19 is under flux globally. In this study, we focused on identifying a more potent analogue of HCQ and CQ against the spike protein of SAR-CoV-2 that can act as an effective antiviral agent for COVID-19 treatment. Systematic pharmacokinetics, drug-likeness, basicity predictions, virtual screening and molecular dynamics analysis (200 ns) were carried out to predict the inhibition potential of the analogous compounds on the spike protein. This work identifies the six potential analogues, out of which two compounds, namely 1-[1-(6-Chloroquinolin-4-yl) piperidin-4-yl]piperidin-3-ol and (1R,2R)-2-N-(7-Chloroquinolin-4-yl)cyclohexane-1,2-diamine interact with the active site of the spike protein similar to HCQ and CQ respectively with augmented safety profile.
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Affiliation(s)
- Meetali Sinha
- Computational Toxicology Facility, CSIR- Indian Institute of Toxicology Research, Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Anshika Gupta
- Computational Toxicology Facility, CSIR- Indian Institute of Toxicology Research, Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Shristee Gupta
- Computational Toxicology Facility, CSIR- Indian Institute of Toxicology Research, Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Prakrity Singh
- Computational Toxicology Facility, CSIR- Indian Institute of Toxicology Research, Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Shraddha Pandit
- Computational Toxicology Facility, CSIR- Indian Institute of Toxicology Research, Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Shweta Singh Chauhan
- Computational Toxicology Facility, CSIR- Indian Institute of Toxicology Research, Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Ramakrishnan Parthasarathi
- Computational Toxicology Facility, CSIR- Indian Institute of Toxicology Research, Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India,Corresponding author. Computational Toxicology Facility, CSIR- Indian Institute of Toxicology Research, Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
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40
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Lani R, Agharbaoui FE, Hassandarvish P, Teoh BT, Sam SS, Zandi K, Rahman NA, AbuBakar S. In silico studies of fisetin and silymarin as novel chikungunya virus nonstructural proteins inhibitors. Future Virol 2021. [DOI: 10.2217/fvl-2019-0090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aim: Chikungunya virus (CHIKV) infection is often characterized by fever, rash and arthralgia. Until now, there is no vaccine or antiviral drug available for this disease. Two flavonoid compounds, silymarin and fisetin, were reported to be able to inhibit CHIKV replication. Materials & methods: The interaction between the flavonoid compounds and two CHIKV nonstructural proteins (nsP2 and nsP3) were investigated through molecular docking supported with other analysis such as molecular dynamics simulation and binding free energy calculation. Results: The compounds establish potent, stable and flexible interaction with the binding pocket of the two target proteins. Conclusion: The outcomes of this study support the previously published experimental data on anti-CHIKV activity of the compounds by highlighting the interactions with the proteins’ key residues.
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Affiliation(s)
- Rafidah Lani
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | | | - Pouya Hassandarvish
- Tropical Infectious Diseases Research & Education Centre (TIDREC), Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Boon Teong Teoh
- Tropical Infectious Diseases Research & Education Centre (TIDREC), Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Sing Sin Sam
- Tropical Infectious Diseases Research & Education Centre (TIDREC), Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Keivan Zandi
- Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University, Atlanta, GA 30322, USA
| | - Noorsaadah Abd Rahman
- Department of Chemistry, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Sazaly AbuBakar
- Tropical Infectious Diseases Research & Education Centre (TIDREC), Universiti Malaya, Kuala Lumpur 50603, Malaysia
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41
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Pereira AKDS, Santos IA, da Silva WW, Nogueira FAR, Bergamini FRG, Jardim ACG, Corbi PP. Memantine hydrochloride: a drug to be repurposed against Chikungunya virus? Pharmacol Rep 2021; 73:954-961. [PMID: 33523405 PMCID: PMC7848042 DOI: 10.1007/s43440-021-00216-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/30/2020] [Accepted: 01/05/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Chikungunya fever is an endemic disease caused by the Chikungunya virus (CHIKV) to which there is no vaccine or effective antiviral drug treatment so far. Our study aimed to evaluate the potential anti-CHIKV activity of memantine hydrochloride (mtnH), a drug from the class of the aminoadamantanes approved for the treatment of Alzheimer´s disease, as a possible drug to be repurposed to the treatment of Chikungunya fever. METHODS MtnH antiviral activity against CHIKV was determined by infecting BHK-21 cells with CHIKV-nanoluc, a virus carrying the marker nanoluciferase reporter, in the presence or absence of mtnH at concentrations ranging from 500 to 1.45 µM. The effective concentration of 50% inhibition (EC50) was calculated. Cell viability assay (determination of CC50) was also performed employing BHK-21 cells. Mutagenic assays were performed by the Salmonella Typhimurium/microsome assay (Ames test). RESULTS MtnH presented a CC50 of 248.4 ± 31.9 µM and an EC50 of 32.4 ± 4 µM against CHIKV in vitro. The calculated selectivity index (SI) was 7.67. MtnH did not induce genetic mutation in Salmonella strains with or without an external metabolizing system. CONCLUSION With the data herein presented, it is possible to hypothesize mtnH as a viable candidate to be repurposed as an anti-CHIKV drug. Clinical assays are, therefore, encouraged due to the promising in vitro results. The drug memantine hydrochloride is herein personified with a doubt: as a prior regulated drug against Alzheimer, could it follow the path against Chikungunya virus too?
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Affiliation(s)
| | - Igor A Santos
- Laboratory of Virology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, MG, 38405-302, Brazil
| | - Washington W da Silva
- Department of Biological and Health Sciences, University of Araraquara-UNIARA, Araraquara, SP, Brazil
| | - Flávia A Resende Nogueira
- Department of Biological and Health Sciences, University of Araraquara-UNIARA, Araraquara, SP, Brazil
| | - Fernando R G Bergamini
- Laboratory of Synthesis of Bioinspired Molecules, Institute of Chemistry, Federal University of Uberlândia, Uberlândia, MG, 34000-902, Brazil.
| | - Ana Carolina G Jardim
- Laboratory of Virology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, MG, 38405-302, Brazil.
| | - Pedro P Corbi
- Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-871, Brazil.
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Españo E, Kim D, Kim J, Park SK, Kim JK. COVID-19 Antiviral and Treatment Candidates: Current Status. Immune Netw 2021; 21:e7. [PMID: 33728100 PMCID: PMC7937511 DOI: 10.4110/in.2021.21.e7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 01/27/2021] [Accepted: 01/31/2021] [Indexed: 02/06/2023] Open
Abstract
The coronavirus disease 2019 (COVID-19) pandemic caused by the severe acute respiratory syndrome coronavirus 2 has severely impacted global health and economy. There is currently no effective approved treatment for COVID-19; although vaccines have been granted emergency use authorization in several countries, they are currently only administered to high-risk individuals, thereby leaving a gap in virus control measures. The scientific and clinical communities and drug manufacturers have collaborated to speed up the discovery of potential therapies for COVID-19 by taking advantage of currently approved drugs as well as investigatory agents in clinical trials. In this review, we stratified some of these candidates based on their potential targets in the progression of COVID-19 and discuss some of the results of ongoing clinical evaluations.
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Affiliation(s)
- Erica Españo
- Department of Pharmacy, Korea University College of Pharmacy, Sejong 30019, Korea
| | - Dajung Kim
- Department of Pharmacy, Korea University College of Pharmacy, Sejong 30019, Korea
| | - Jiyeon Kim
- Department of Pharmacy, Korea University College of Pharmacy, Sejong 30019, Korea
| | - Song-Kyu Park
- Department of Pharmacy, Korea University College of Pharmacy, Sejong 30019, Korea
| | - Jeong-Ki Kim
- Department of Pharmacy, Korea University College of Pharmacy, Sejong 30019, Korea
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Choudhary J, Dheeman S, Sharma V, Katiyar P, Karn SK, Sarangi MK, Chauhan AK, Verma G, Baliyan N. Insights of Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV-2) pandemic: a current review. Biol Proced Online 2021; 23:5. [PMID: 33526007 PMCID: PMC7849622 DOI: 10.1186/s12575-020-00141-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/25/2020] [Indexed: 01/08/2023] Open
Abstract
COVID-19, a pandemic of the 21st century caused by novel coronavirus SARS-CoV-2 was originated from China and shallowed world economy and human resource. The medical cures via herbal treatments, antiviral drugs, and vaccines still in progress, and studying rigorously. SARS-CoV-2 is more virulent than its ancestors due to evolution in the spike protein(s), mediates viral attachment to the host's membranes. The SARS-CoV-2 receptor-binding spike domain associates itself with human angiotensin-converting enzyme 2 (ACE-2) receptors. It causes respiratory ailments with irregularities in the hepatic, nervous, and gastrointestinal systems, as reported in humans suffering from COVID-19 and reviewed in the present article. There are several approaches, have been put forward by many countries under the world health organization (WHO) recommendations and some trial drugs were introduced for possible treatment of COVID-19, such as Lopinavir or Ritonavir, Arbidol, Chloroquine (CQ), Hydroxychloroquine (HCQ) and most important Remdesivir including other like Tocilizumab, Oritavancin, Chlorpromazine, Azithromycin, Baricitinib, etc. RT-PCR is the only and early detection test available besides the rapid test kit (serodiagnosis) used by a few countries due to unreasonable causes. Development of vaccine by several leader of pharmaceutical groups still under trial or waiting for approval for mass inoculation. Management strategies have been evolved by the recommendations of WHO, specifically important to control COVID-19 situations, in the pandemic era. This review will provide a comprehensive collection of studies to support future research and enhancement in our wisdom to combat COVID-19 pandemic and to serve humanity.
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Affiliation(s)
- Jyoti Choudhary
- Department of Microbiology, Chinmaya Degree College (Hemwati Nandan Bahuguna Garhwal University, Srinagar, Garhwal, Uttarakhand), Haridwar, Uttarakhand 249401 India
- Department of Botany and Microbiology, Gurukula Kangri Deemed to be University, Haridwar, Uttarakhand 249404 India
| | - Shrivardhan Dheeman
- Department of Microbiology, School of Life Sciences, Sardar Bhagwan Singh University, Dehradun, Uttarakhand 248161 India
| | - Vipin Sharma
- Department of Pharmaceuticals Sciences, Faculty of Ayurvedic and Medicinal Sciences, Gurukula Kangri Deemed to be University, Haridwar, Uttarakhand 249404 India
| | - Prashant Katiyar
- Department of Botany and Microbiology, Gurukula Kangri Deemed to be University, Haridwar, Uttarakhand 249404 India
| | - Santosh Kumar Karn
- Deaprtment of Biotechnology and Biochemistry, School of Life Sciences, Sardar Bhagwan Singh University, Dehradun, Uttarakhand 248161 India
| | - Manoj Kumar Sarangi
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences and Technology, Sardar Bhagwan Singh University, Dehradun, Uttarakhand 248161 India
| | - Ankit Kumar Chauhan
- Department of Botany and Microbiology, Gurukula Kangri Deemed to be University, Haridwar, Uttarakhand 249404 India
- Atal Bihari Vajpayee Institute of Medical Sciences and Dr. Ram Manohar Lohia Hospital, New Delhi, 110001 India
| | - Gaurav Verma
- Deaprtment of Microbiology, Shri Dev Suman Subharti Medical College, Ras Bihari Bose Subharti University, Dehradun, Uttarakhand 248001 India
| | - Nitin Baliyan
- Department of Botany and Microbiology, Gurukula Kangri Deemed to be University, Haridwar, Uttarakhand 249404 India
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Scroggs SLP, Gass JT, Chinnasamy R, Widen SG, Azar SR, Rossi SL, Arterburn JB, Vasilakis N, Hanley KA. Evolution of resistance to fluoroquinolones by dengue virus serotype 4 provides insight into mechanism of action and consequences for viral fitness. Virology 2021; 552:94-106. [PMID: 33120225 PMCID: PMC7528753 DOI: 10.1016/j.virol.2020.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 08/30/2020] [Accepted: 09/08/2020] [Indexed: 02/07/2023]
Abstract
Drugs against flaviviruses such as dengue (DENV) and Zika (ZIKV) virus are urgently needed. We previously demonstrated that three fluoroquinolones, ciprofloxacin, enoxacin, and difloxacin, suppress replication of six flaviviruses. To investigate the barrier to resistance and mechanism(s) of action of these drugs, DENV-4 was passaged in triplicate in HEK-293 cells in the presence or absence of each drug. Resistance to ciprofloxacin was detected by the seventh passage and to difloxacin by the tenth, whereas resistance to enoxacin did not occur within ten passages. Two putative resistance-conferring mutations were detected in the envelope gene of ciprofloxacin and difloxacin-resistant DENV-4. In the absence of ciprofloxacin, ciprofloxacin-resistant viruses sustained a significantly higher viral titer than control viruses in HEK-293 and HuH-7 cells and resistant viruses were more stable than control viruses at 37 °C. These results suggest that the mechanism of action of ciprofloxacin and difloxacin involves interference with virus binding or entry.
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Affiliation(s)
- Stacey L P Scroggs
- Department of Biology, New Mexico State University, Las Cruces, NM, USA.
| | - Jordan T Gass
- Department of Biology, New Mexico State University, Las Cruces, NM, USA
| | - Ramesh Chinnasamy
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM, USA
| | - Steven G Widen
- Department of Biochemistry & Molecular Biology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Sasha R Azar
- Department of Pathology, The University of University of Texas Medical Branch, Galveston, TX, USA
| | - Shannan L Rossi
- Department of Pathology, The University of University of Texas Medical Branch, Galveston, TX, USA; Institute for Human Infection and Immunity, The University of University of Texas Medical Branch, Galveston, TX, USA
| | - Jeffrey B Arterburn
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM, USA
| | - Nikos Vasilakis
- Department of Pathology, The University of University of Texas Medical Branch, Galveston, TX, USA; Center for Biodefense and Emerging Infectious Diseases, The University of University of Texas Medical Branch, Galveston, TX, USA; Center for Tropical Diseases, The University of University of Texas Medical Branch, Galveston, TX, USA; Institute for Human Infection and Immunity, The University of University of Texas Medical Branch, Galveston, TX, USA
| | - Kathryn A Hanley
- Department of Biology, New Mexico State University, Las Cruces, NM, USA
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Lovato ECW, Barboza LN, Wietzikoski S, de Souza ANV, Auth PA, Junior AG, Dos Reis Lívero FA. Repurposing Drugs for the Management of Patients with Confirmed Coronavirus Disease 2019 (COVID-19). Curr Pharm Des 2021; 27:115-126. [PMID: 32634080 DOI: 10.2174/1381612826666200707121636] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 06/23/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), termed coronavirus disease 2019 (COVID-19) by the World Health Organization, is a newly emerging zoonotic agent that emerged in China in December 2019. No specific treatment for COVID-19 is currently available. Usual palliative treatment includes maintaining hydration and nutrition and controlling fever and cough. The clinical severity and extent of transmission need to be determined, and therapeutic options need to be developed and optimized. METHODS The present review discusses the recent repurposing of drugs for COVID-19 treatment. RESULTS Several compounds, including remdesivir, lopinavir, ritonavir, interferon-β, ribavirin, chloroquine/ hydroxychloroquine, azithromycin, tocilizumab, and ivermectin, have emerged as promising alternatives. They block the virus from entering host cells, prevent viral replication, and attenuate exacerbation of the host's immune response. CONCLUSION Although some evidence indicates the positive actions of different classes of compounds for the treatment of COVID-19, few clinical assays have been established to definitively demonstrate their therapeutic value in humans. Multicenter clinical studies are urgently needed to validate and standardize therapeutic regimens that involve these agents. Although science has not yet presented us with a specific drug against COVID-19, the repurposing of drugs appears to be promising in our fight against this devastating disease.
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Affiliation(s)
- Evellyn Claudia Wietzikoski Lovato
- Laboratory of Preclinical Research of Natural Products, Post-Graduate Program in Medicinal Plants and Phytotherapeutics in Basic Attention, Paranaense University, Umuarama, PR, Brazil
| | - Lorena Neris Barboza
- Laboratory of Preclinical Research of Natural Products, Post-Graduate Program in Medicinal Plants and Phytotherapeutics in Basic Attention, Paranaense University, Umuarama, PR, Brazil
| | - Samantha Wietzikoski
- Laboratory of Preclinical Research of Natural Products, Post-Graduate Program in Medicinal Plants and Phytotherapeutics in Basic Attention, Paranaense University, Umuarama, PR, Brazil
| | - Amanda Nascimento Vasques de Souza
- Laboratory of Preclinical Research of Natural Products, Post-Graduate Program in Medicinal Plants and Phytotherapeutics in Basic Attention, Paranaense University, Umuarama, PR, Brazil
| | - Pablo Alvarez Auth
- Laboratory of Preclinical Research of Natural Products, Post- Graduate Program in Animal Science with Emphasis on Bioactive Products, Paranaense University, Umuarama, PR, Brazil
| | - Arquimedes Gasparotto Junior
- Laboratory of Electrophysiology and Cardiovascular Pharmacology, Faculty of Health Sciences, Federal University of Grande Dourados, Dourados, MS, Brazil
| | - Francislaine Aparecida Dos Reis Lívero
- Laboratory of Preclinical Research of Natural Products, Post-Graduate Program in Medicinal Plants and Phytotherapeutics in Basic Attention, Paranaense University, Umuarama, PR, Brazil
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Kashour Z, Riaz M, Garbati MA, AlDosary O, Tlayjeh H, Gerberi D, Murad MH, Sohail MR, Kashour T, Tleyjeh IM. Efficacy of chloroquine or hydroxychloroquine in COVID-19 patients: a systematic review and meta-analysis. J Antimicrob Chemother 2021; 76:30-42. [PMID: 33031488 PMCID: PMC7665543 DOI: 10.1093/jac/dkaa403] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 08/28/2020] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES Clinical studies of chloroquine (CQ) and hydroxychloroquine (HCQ) in COVID-19 disease reported conflicting results. We sought to systematically evaluate the effect of CQ and HCQ with or without azithromycin on outcomes of COVID-19 patients. METHODS We searched multiple databases, preprints and grey literature up to 17 July 2020. We pooled only adjusted-effect estimates of mortality using a random-effect model. We summarized the effect of CQ or HCQ on viral clearance, ICU admission/mechanical ventilation and hospitalization. RESULTS Seven randomized clinical trials (RCTs) and 14 cohort studies were included (20 979 patients). Thirteen studies (1 RCT and 12 cohort studies) with 15 938 hospitalized patients examined the effect of HCQ on short-term mortality. The pooled adjusted OR was 1.05 (95% CI 0.96-1.15, I2 = 0%). Six cohort studies examined the effect of the HCQ+azithromycin combination with a pooled adjusted OR of 1.32 (95% CI 1.00-1.75, I2 = 68.1%). Two cohort studies and four RCTs found no effect of HCQ on viral clearance. One small RCT demonstrated improved viral clearance with CQ and HCQ. Three cohort studies found that HCQ had no significant effect on mechanical ventilation/ICU admission. Two RCTs found no effect for HCQ on hospitalization risk in outpatients with COVID-19. CONCLUSIONS Moderate certainty evidence suggests that HCQ, with or without azithromycin, lacks efficacy in reducing short-term mortality in patients hospitalized with COVID-19 or risk of hospitalization in outpatients with COVID-19.
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Affiliation(s)
- Zakariya Kashour
- Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Muhammad Riaz
- Department of Statistics, Quaid-i-Azam University Islamabad, Islamabad, Pakistan
| | - Musa A Garbati
- Infectious Diseases Unit, Department of Medicine, University of Maiduguri, Maiduguri, Nigeria
| | - Oweida AlDosary
- Infectious Diseases Section, Department of Medical Specialties, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Haytham Tlayjeh
- Department of Intensive Care, King Abdulaziz Medical City, King Saud bin Abdulaziz for Health Sciences and King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Dana Gerberi
- Mayo Clinic Libraries, Mayo Clinic, Rochester, MN, USA
| | - M Hassan Murad
- Division of Health Care Policy & Research, Department of Health Sciences Research, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
- Division of Preventive, Occupational and Aerospace Medicine, Department of Internal Medicine, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | - M Rizwan Sohail
- Division of Infectious Diseases, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
- Department of Cardiovascular Diseases, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | - Tarek Kashour
- Department of Cardiac Sciences, King Fahad Cardiac Center, King Saud University Medical City, Riyadh, Saudi Arabia
| | - Imad M Tleyjeh
- Infectious Diseases Section, Department of Medical Specialties, King Fahad Medical City, Riyadh, Saudi Arabia
- Division of Infectious Diseases, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
- Division of Epidemiology, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
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Anu K. Ramachandran, Das S, Joseph A. Crosstalk Between Covid-19 and Associated Neurological Disorders: A Review. Curr Neuropharmacol 2021; 19:1688-1700. [PMID: 33441073 PMCID: PMC8977634 DOI: 10.2174/1570159x19666210113154342] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/19/2020] [Accepted: 12/26/2020] [Indexed: 11/22/2022] Open
Abstract
COVID-19 is a global pandemic, primarily affecting the pulmonary system but its effects on other systems are not certain. Coronavirus, the causative organism, binds with angiotensinconverting enzyme 2 (ACE2) receptors in the lungs and produces pneumonia-like symptoms. Other than lungs, ACE2 receptors are also seen in the endothelium of blood vessels. Therefore, viruses can bind to the ACE2 that is present in the endothelium of brain blood vessels and thus can invade BBB, leading to neuronal damage. It is also believed that olfactory cells rich in ACE2 receptors may act as the main route of viral spread into various parts of the brain. The reported neurological effects of SARS-CoV-2 include cerebrovascular diseases, ageusia and anosmia, Guillain Barre Syndrome, and viral encephalitis. The extent of neurological involvement in SARS-CoV-2 infection warrants the necessity of further research to systematically classify neurological complications associated with SARS-CoV-2 infection, its diagnosis, and treatment. As ACE2 receptors are present in various other organs, it is obligatory to study the effect of coronavirus on other organs also. Since the long-lasting effects of the COVID-19 are unclear, more studies should be conducted to confirm the effect of the virus on the central nervous system. This review highlights the reported neurological manifestations of SARS-CoV-2 and its mechanism.
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Affiliation(s)
- Anu K. Ramachandran
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
| | - Subham Das
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
| | - Alex Joseph
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
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Wong SK. Repurposing New Use for Old Drug Chloroquine against Metabolic Syndrome: A Review on Animal and Human Evidence. Int J Med Sci 2021; 18:2673-2688. [PMID: 34104100 PMCID: PMC8176183 DOI: 10.7150/ijms.58147] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 05/04/2021] [Indexed: 01/15/2023] Open
Abstract
Chloroquine (CQ) and hydroxychloroquine (HCQ) are traditional anti-malarial drugs that have been repurposed for new therapeutic uses in many diseases due to their simple usage and cost-effectiveness. The pleiotropic effects of CQ and HCQ in regulating blood pressure, glucose homeostasis, lipid, and carbohydrate metabolism have been previously described in vivo and in humans, thus suggesting their role in metabolic syndrome (MetS) prevention. The anti-hyperglycaemic, anti-hyperlipidaemic, cardioprotective, anti-hypertensive, and anti-obesity effects of CQ and HCQ might be elicited through reduction of inflammatory response and oxidative stress, improvement of endothelial function, activation of insulin signalling pathway, inhibition of lipogenesis and autophagy, as well as regulation of adipokines and apoptosis. In conclusion, the current state of knowledge supported the repurposing of CQ and HCQ usage in the management of MetS.
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Affiliation(s)
- Sok Kuan Wong
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, 56000 Cheras, Kuala Lumpur, Malaysia
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Mohanta TK, Sharma N, Arina P, Defilippi P. Molecular Insights into the MAPK Cascade during Viral Infection: Potential Crosstalk between HCQ and HCQ Analogues. BIOMED RESEARCH INTERNATIONAL 2020; 2020:8827752. [PMID: 33426074 PMCID: PMC7780227 DOI: 10.1155/2020/8827752] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 12/09/2020] [Accepted: 12/17/2020] [Indexed: 12/21/2022]
Abstract
The mitogen-activated protein kinase (MAPK) pathway links the cell-surface receptors to the transcription machinery, transducing the extracellular signals into several outputs, which may also adapt the host defense mechanism to viral attacks. The Severe Acute Respiratory Syndrome CoronaVirus 2 (SARS-CoV-2) that causes the COrona VIrus Disease 2019 (COVID-19) has infected upwards of nearly 70 million people and worldwide has claimed more than 1,600,000 deaths. So far, there continues to be no specific treatment for this novel coronavirus-induced disease. In the search to control the global COVID-19 pandemic, some eastern and developing countries have approved a variety of treatments with controversial efficacy, among which is the use of the antimalarial hydroxychloroquine (HCQ). Interestingly, prior data had indicated that the HCQ/CQ could influence the MAPK cascade. The main aim of this review is to address molecular mechanisms, beyond drugs, that can be helpful against viral infection for this and future pandemics. We will highlight (1) the contribution of the MAPK cascade in viral infection and (2) the possible use of MAPK inhibitors in curbing viral infections, alone or in combination with HCQ and quinoline analogues. We are convinced that understanding the molecular patterns of viral infections will be critical for new therapeutical approaches to control this and other severe diseases.
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Affiliation(s)
- Tapan Kumar Mohanta
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa 616, Oman
| | - Nanaocha Sharma
- Institute of Bioresources and Sustainable Development (IBSD), Imphal 795001, India
| | - Pietro Arina
- UCL Division of Medicine, Bloomsbury Institute for Intensive Care Medicine, London, WC1E 6BT, UK
| | - Paola Defilippi
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin 10126, Italy
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Chloroquine and Sulfadoxine Derivatives Inhibit ZIKV Replication in Cervical Cells. Viruses 2020; 13:v13010036. [PMID: 33383619 PMCID: PMC7823661 DOI: 10.3390/v13010036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/30/2020] [Accepted: 11/03/2020] [Indexed: 12/22/2022] Open
Abstract
Despite the severe morbidity caused by Zika fever, its specific treatment is still a challenge for public health. Several research groups have investigated the drug repurposing of chloroquine. However, the highly toxic side effect induced by chloroquine paves the way for the improvement of this drug for use in Zika fever clinics. Our aim is to evaluate the anti-Zika virus (ZIKV) effect of hybrid compounds derived from chloroquine and sulfadoxine antimalarial drugs. The antiviral activity of hybrid compounds (C-Sd1 to C-Sd7) was assessed in an in-vitro model of human cervical and Vero cell lines infected with a Brazilian (BR) ZIKV strain. First, we evaluated the cytotoxic effect on cultures treated with up to 200 µM of C-Sds and observed CC50 values that ranged from 112.0 ± 1.8 to >200 µM in cervical cells and 43.2 ± 0.4 to 143.0 ± 1.3 µM in Vero cells. Then, the cultures were ZIKV-infected and treated with up to 25 µM of C-Sds for 48 h. The treatment of cervical cells with C-Sds at 12 µM induced a reduction of 79.8% ± 4.2% to 90.7% ± 1.5% of ZIKV-envelope glycoprotein expression in infected cells as compared to 36.8% ± 2.9% of infection in vehicle control. The viral load was also investigated and revealed a reduction of 2- to 3-logs of ZIKV genome copies/mL in culture supernatants compared to 6.7 ± 0.7 × 108 copies/mL in vehicle control. The dose-response curve by plaque-forming reduction (PFR) in cervical cells revealed a potent dose-dependent activity of C-Sds in inhibiting ZIKV replication, with PFR above 50% and 90% at 6 and 12 µM, respectively, while 25 µM inhibited 100% of viral progeny. The treatment of Vero cells at 12 µM led to 100% PFR, confirming the C-Sds activity in another cell type. Regarding effective concentration in cervical cells, the EC50 values ranged from 3.2 ± 0.1 to 5.0 ± 0.2 µM, and the EC90 values ranged from 7.2 ± 0.1 to 11.6 ± 0.1 µM, with selectivity index above 40 for most C-Sds, showing a good therapeutic window. Here, our aim is to investigate the anti-ZIKV activity of new hybrid compounds that show highly potent efficacy as inhibitors of ZIKV in-vitro infection. However, further studies will be needed to investigate whether these new chemical structures can lead to the improvement of chloroquine antiviral activity.
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