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Li L, Chen J, Sun Z. Exploring the shared pathogenic strategies of independently evolved effectors across distinct plant viruses. Trends Microbiol 2024:S0966-842X(24)00058-1. [PMID: 38521726 DOI: 10.1016/j.tim.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/28/2024] [Accepted: 03/01/2024] [Indexed: 03/25/2024]
Abstract
Plants have developed very diverse strategies to defend themselves against viral pathogens, among which plant hormones play pivotal roles. In response, some viruses have also deployed multifunctional viral effectors that effectively hijack key component hubs to counter or evade plant immune surveillance. Although significant progress has been made toward understanding counter-defense strategies that manipulate plant hormone regulatory molecules, these efforts have often been limited to an individual virus or specific host target/pathway. This review provides new insights into broad-spectrum antiviral responses in rice triggered by key components of phytohormone signaling, and highlights the common features of counter-defense strategies employed by distinct rice-infecting RNA viruses. These strategies involve the secretion of multifunctional virulence effectors that target the sophisticated phytohormone system, dampening immune responses by engaging with the same host targets. Additionally, the review provides an in-depth exploration of various viral effectors, emphasizing tertiary structure-based research and shared host targets. Understanding these conserved characteristics in detail may pave the way for molecular drug design, opening new opportunities to enhance broad-spectrum antiviral trials through precise engineering.
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Affiliation(s)
- Lulu Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, 315211, China
| | - Jianping Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, 315211, China
| | - Zongtao Sun
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, 315211, China.
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Sun S, Tang N, Han K, You J, Liu A, Wang Q, Xu Q. Antifungal Activity and Mechanism of 4-Propylphenol Against Fusarium graminearum, Agent of Wheat Scab, and Its Potential Application. J Agric Food Chem 2024; 72:5258-5268. [PMID: 38430124 DOI: 10.1021/acs.jafc.3c09646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/03/2024]
Abstract
Fusarium head blight (FHB), caused by Fusarium graminearum, is a predominant disease of wheat. Due to the lack of disease-resistant germplasm, chemical control is an important means to control wheat scab. Volatile substances produced in near-isogenic wheat lines were detected after inoculation with F. graminearum, and 4-propylphenol, which appears in FHB-resistant lines, was identified. In vitro and in vivo antifungal activity tests demonstrate that 4-propylphenol effectively inhibits the mycelial growth of F. graminearum. Metabolomics analysis showed changes in glutathione metabolism, indicating that 4-propylphenol triggered reactive oxygen species (ROS) stress. This was consistent with the increasing ROS levels in Fusarium cells treated with 4-propylphenol. Further results demonstrated that excessive accumulation of ROS induced DNA and cell membrane damage in the mycelium. Moreover, 4-propylphenol showed different degrees of inhibition against other soil-borne pathogens (fungi and oomycetes). These findings illustrated that 4-propylphenol has broad spectrum and high antifungal activity and should be considered for use as an ecological fungicide.
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Affiliation(s)
- Shufang Sun
- National Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Taian 271018, China
| | - Nawen Tang
- National Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Taian 271018, China
| | - Kun Han
- National Key Laboratory of Wheat Improvement, College of Plant Protection, Shandong Agricultural University, Taian 271018, China
| | - Jiahui You
- Shandong Guocangjian Biotechnology Co., Ltd, Taian 271018, China
| | - Anru Liu
- National Key Laboratory of Wheat Improvement, College of Plant Protection, Shandong Agricultural University, Taian 271018, China
| | - Qunqing Wang
- National Key Laboratory of Wheat Improvement, College of Plant Protection, Shandong Agricultural University, Taian 271018, China
| | - Qian Xu
- National Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Taian 271018, China
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Wang Y, Zhao WB, Li FK, Chang SL, Cao Q, Guo R, Song SY, Liu KK, Shan CX. Engineering Sizable and Broad-Spectrum Antibacterial Fabrics through Hydrogen Bonding Interaction and Electrostatic Interaction. ACS Appl Mater Interfaces 2024; 16:8321-8332. [PMID: 38330195 DOI: 10.1021/acsami.3c15754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Long-lasting and highly efficient antibacterial fabrics play a key role in public health occurrences caused by bacterial and viral infections. However, the production of antibacterial fabrics with a large size, highly efficient, and broad-spectrum antibacterial performance remains a great challenge due to the complex processes. Herein, we demonstrate sizable and highly efficient antibacterial fabrics through hydrogen bonding interaction and electrostatic interaction between surface groups of ZnO nanoparticles and fabric fibers. The production process can be carried out at room temperature and achieve a production rate of 300 × 1 m2 within 1 h. Under both visible light and dark conditions, the bactericidal rate against Gram-positive (S. aureus), Gram-negative (E. coli), and multidrug-resistant (MRSA) bacteria can reach an impressive 99.99%. Furthermore, the fabricated ZnO nanoparticle-decorated antibacterial fabrics (ZnO@fabric) show high stability and long-lasting antibacterial performance, making them easy to develop into variable antibacterial blocks for protection suits.
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Affiliation(s)
- Yong Wang
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Wen-Bo Zhao
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Fu-Kui Li
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Shu-Long Chang
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Qing Cao
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Rui Guo
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Shi-Yu Song
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Kai-Kai Liu
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
- Institute of Quantum Materials and Physics, Henan Academy of Sciences, Zhengzhou 450046, China
| | - Chong-Xin Shan
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
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Kamezaki M, Otsuki J, Natsuhara K. Insecticidal activity against rice pest of oxazosulfyl, a novel sulfyl insecticide. J Pestic Sci 2024; 49:31-37. [PMID: 38450091 PMCID: PMC10912969 DOI: 10.1584/jpestics.d23-057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 11/27/2023] [Indexed: 03/08/2024]
Abstract
The development and commercialization of new chemical classes of insecticides are important for efficient crop protection, particularly for combatting insecticide resistance and providing sustainable agricultural production. This study reports on oxazosulfyl, a novel "sulfyl" class of insecticide, against a wide range of insect pests of rice. In the laboratory assay, oxazosulfyl showed insecticidal activity against all developmental stages of the brown planthopper Nilaparvata lugens (Stål). Phosphor imaging assays and soil drench bioassays demonstrated good systemic distribution in rice plants. Oxazosulfyl showed insecticidal activity against imidacloprid- and fipronil-resistant field populations of N. lugens, the white-backed planthopper Sogatella furcifera (Horváth), and the small brown planthopper Laodelphax striatellus (Fallén), as well as the respective susceptible strains. No cross-resistance was observed among oxazosulfyl, imidacloprid, and fipronil. Oxazosulfyl with a wide insecticidal spectrum is a potentially useful pest management tool for sustainable rice production.
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Affiliation(s)
- Masashi Kamezaki
- Health & Crop Sciences Research Laboratory, Sumitomo Chemical Co., Ltd
| | - Junko Otsuki
- Health & Crop Sciences Research Laboratory, Sumitomo Chemical Co., Ltd
| | - Katsuya Natsuhara
- Health & Crop Sciences Research Laboratory, Makabe Experimental Farm, Sumitomo Chemical Co., Ltd
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Niode NJ, Kepel BJ, Hessel SS, Kairupan TS, Tallei TE. Rhynchophorus ferrugineus larvae: A novel source for combating broad-spectrum bacterial and fungal infections. Vet World 2024; 17:156-170. [PMID: 38406375 PMCID: PMC10884581 DOI: 10.14202/vetworld.2024.156-170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/21/2023] [Indexed: 02/27/2024] Open
Abstract
Antimicrobial resistance is a growing concern due to the growth of antibiotic-resistant microorganisms, which makes it difficult to treat infection. Due to its broad-spectrum antimicrobial properties against a diverse array of bacteria, both Gram-positive and Gram-negative bacteria, and fungi, Rhynchophorus ferrugineus larval antimicrobial peptides (AMPs) have demonstrated potential as antimicrobial agents for the treatment of microbial infections and prevention of antibiotic resistance. This study emphasizes the unexplored mechanisms of action of R. ferrugineus larvae against microorganisms. Among the most widely discussed mechanisms is the effect of AMPs in larvae in response to a threat or infection. Modulation of immune-related genes in the intestine and phagocytic capacity of its hemocytes may also affect the antimicrobial activity of R. ferrugineus larvae, with an increase in phenoloxidase activity possibly correlated with microbial clearance and survival rates of larvae. The safety and toxicity of R. ferrugineus larvae extracts, as well as their long-term efficacy, are also addressed in this paper. The implications of future research are explored in this paper, and it is certain that R. ferrugineus larvae have the potential to be developed as a broad-spectrum antimicrobial agent with proper investigation.
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Affiliation(s)
- Nurdjannah Jane Niode
- Department of Dermatology and Venereology, Faculty of Medicine, Sam Ratulangi University, Prof. Dr. R. D. Kandou Hospital Manado, Manado 95115, North Sulawesi, Indonesia
| | - Billy Johnson Kepel
- Department of Chemistry, Faculty of Medicine, Sam Ratulangi University, Manado 95115, North Sulawesi, Indonesia
| | - Sofia Safitri Hessel
- Department of Biotechnology, Indonesia Biodiversity and Biogeography Research Institute (INABIG), Bandung 40132, West Java, Indonesia
| | - Tara Sefanya Kairupan
- Department of Dermatology and Venereology, Faculty of Medicine, Sam Ratulangi University, Prof. Dr. R. D. Kandou Hospital Manado, Manado 95115, North Sulawesi, Indonesia
| | - Trina Ekawati Tallei
- Department of Biology, Faculty of Mathematics and Natural Sciences, Sam Ratulangi University, Manado 95115, North Sulawesi, Indonesia
- Department of Biology, Faculty of Medicine, Sam Ratulangi University, Manado 95115, North Sulawesi, Indonesia
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Yang Y, Gao Y, Zhang L, Liu X, Sun Y, Bai J, Jiang P. Vidofludimus inhibits porcine reproductive and respiratory syndrome virus infection by targeting dihydroorotate dehydrogenase. Vet Res 2023; 54:124. [PMID: 38124181 PMCID: PMC10731701 DOI: 10.1186/s13567-023-01251-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023] Open
Abstract
Porcine reproductive and respiratory syndrome virus (PRRSV) infection has caused huge economic losses in global swine industry over the last 37 years. PRRSV commercial vaccines are not effective against all epidemic PRRSV strains. In this study we performed a high-throughput screening (HTS) of an FDA-approved drug library, which contained 2339 compounds, and found vidofludimus (Vi) could significantly inhibits PRRSV replication in Marc-145 cells and primary porcine alveolar macrophages (PAMs). Compounds target prediction, molecular docking analysis, and target protein interference assay showed that Vi interacts with dihydroorotate dehydrogenase (DHODH), a rate-limiting enzyme in the de novo pyrimidine synthesis pathway. Furthermore, PRRSV infection was restored in the presence of excess uridine and cytidine which promote pyrimidine salvage, or excess orotate which is the product of DHODH in the de novo pyrimidine biosynthesis pathway, thus confirming that the antiviral effect of Vi against PRRSV relies on the inhibition of DHODH. In addition, Vi also has antiviral activity against Seneca virus A (SVA), encephalomyocarditis virus (EMCV), porcine epidemic diarrhea virus (PEDV), and pseudorabies virus (PRV) in vitro. These findings should be helpful for developing a novel prophylactic and therapeutic strategy against PRRSV and other swine viral infections.
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Affiliation(s)
- Yuanqi Yang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yanni Gao
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lujie Zhang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xing Liu
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yangyang Sun
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Juan Bai
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ping Jiang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China.
- Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China.
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Almajid A, Bazroon A, Albarbari H, Al-Awami HM, AlAhmed A, Bakhurji OM, Alharbi G, Aldawood F, AlKhamis Z, Alqarni M, Alabdullah M, Almutairi R. Evaluation of the Appropriateness of Piperacillin-Tazobactam Prescription in Community-Acquired Pneumonia: A Tertiary-Center Experience. Cureus 2023; 15:e51385. [PMID: 38292950 PMCID: PMC10825886 DOI: 10.7759/cureus.51385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/31/2023] [Indexed: 02/01/2024] Open
Abstract
Background Antimicrobial resistance (AMR) has been designated a public health crisis by the World Health Organization. AMR can lead to escalated healthcare costs, higher mortality rates, increased morbidity, and more frequent hospitalizations. This study aimed to retrospectively evaluate the appropriateness of Tazocin prescription for community-acquired pneumonia (CAP). Methodology We conducted a retrospective analysis of patients aged ≥18 years who were admitted with a diagnosis of CAP and administered intravenous Tazocin between November 2021 and October 2022. The primary objective was to assess the appropriateness of Tazocin prescriptions in patients with CAP. Results A total of 39 patients with CAP were included, with a mean age of 61 ± 17.36 years. Overall, 24 (61%) patients were male. The rate of inappropriate prescriptions of Tazocin was 66.6%. The incidence of inappropriate Tazocin prescription varied significantly among different medical specialties, with the highest rate observed in the oncology-palliative specialty (90%; p = 0.033). Conclusions Our study affirms the inclination of physicians to prescribe Tazocin for CAP without justifiable indications and highlights the unwarranted use of Tazocin for CAP across various medical specialties. This is evidenced by the notably high rate of inappropriate empirical prescriptions.
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Affiliation(s)
- Ali Almajid
- Department of Internal Medicine, King Fahad Specialist Hospital, Dammam, SAU
| | - Ali Bazroon
- Department of Internal Medicine, King Fahad Specialist Hospital, Dammam, SAU
| | - Hassan Albarbari
- Department of Internal Medicine, King Fahad Specialist Hospital, Dammam, SAU
| | - Hashim M Al-Awami
- Department of Internal Medicine, King Fahad Specialist Hospital, Dammam, SAU
| | - Alzahraa AlAhmed
- Faculty of Medicine, King Abdulaziz University Hospital, Jeddah, SAU
| | - Omar M Bakhurji
- College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, SAU
| | | | - Fatemah Aldawood
- College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, SAU
| | - Zainab AlKhamis
- College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, SAU
| | - Mohammed Alqarni
- College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, SAU
| | | | - Raghad Almutairi
- College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, SAU
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Reshamwala D, Shroff S, Liimatainen J, Tienaho J, Laajala M, Kilpeläinen P, Viherä-Aarnio A, Karonen M, Jyske T, Marjomäki V. Willow ( Salix spp.) bark hot water extracts inhibit both enveloped and non-enveloped viruses: study on its anti-coronavirus and anti-enterovirus activities. Front Microbiol 2023; 14:1249794. [PMID: 38029113 PMCID: PMC10663278 DOI: 10.3389/fmicb.2023.1249794] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 09/18/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Recurring viral outbreaks have a significant negative impact on society. This creates a need to develop novel strategies to complement the existing antiviral approaches. There is a need for safe and sustainable antiviral solutions derived from nature. Objective This study aimed to investigate the antiviral potential of willow (Salix spp.) bark hot water extracts against coronaviruses and enteroviruses. Willow bark has long been recognized for its medicinal properties and has been used in traditional medicines. However, its potential as a broad-spectrum antiviral agent remains relatively unexplored. Methods Cytopathic effect inhibition assay and virucidal and qPCR-based assays were used to evaluate the antiviral potential of the bark extracts. The mechanism of action was investigated using time-of-addition assay, confocal microscopy, TEM, thermal, and binding assays. Extracts were fractionated and screened for their chemical composition using high-resolution LC-MS. Results The native Salix samples demonstrated their excellent antiviral potential against the non-enveloped enteroviruses even at room temperature and after 45 s. They were equally effective against the seasonal and pandemic coronaviruses. Confocal microscopy verified the loss of infection capacity by negligible staining of the newly synthesized capsid or spike proteins. Time-of-addition studies demonstrated that Salix bark extract had a direct effect on the virus particles but not through cellular targets. Negative stain TEM and thermal assay showed that antiviral action on enteroviruses was based on the added stability of the virions. In contrast, Salix bark extract caused visible changes in the coronavirus structure, which was demonstrated by the negative stain TEM. However, the binding to the cells was not affected, as verified by the qPCR study. Furthermore, coronavirus accumulated in the cellular endosomes and did not proceed after this stage, based on the confocal studies. None of the tested commercial reference samples, such as salicin, salicylic acid, picein, and triandrin, had any antiviral activity. Fractionation of the extract and subsequent MS analysis revealed that most of the separated fractions were very effective against enteroviruses and contained several different chemical groups such as hydroxycinnamic acid derivatives, flavonoids, and procyanidins. Conclusion Salix spp. bark extracts contain several virucidal agents that are likely to act synergistically and directly on the viruses.
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Affiliation(s)
- Dhanik Reshamwala
- Department of Biological and Environmental Sciences, Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Sailee Shroff
- Department of Biological and Environmental Sciences, Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | | | - Jenni Tienaho
- Natural Resources Institute Finland (Luke), Helsinki, Finland
| | - Mira Laajala
- Department of Biological and Environmental Sciences, Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | | | | | - Maarit Karonen
- Natural Chemistry Research Group, Department of Chemistry, University of Turku, Turku, Finland
| | - Tuula Jyske
- Natural Resources Institute Finland (Luke), Helsinki, Finland
| | - Varpu Marjomäki
- Department of Biological and Environmental Sciences, Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
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Löw K, Möller R, Stegmann C, Becker M, Rehburg L, Obernolte H, Schaudien D, Oestereich L, Braun A, Kunz S, Gerold G. Luminescent reporter cells enable the identification of broad-spectrum antivirals against emerging viruses. J Med Virol 2023; 95:e29211. [PMID: 37975336 DOI: 10.1002/jmv.29211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 09/29/2023] [Accepted: 10/21/2023] [Indexed: 11/19/2023]
Abstract
The emerging viruses SARS-CoV-2 and arenaviruses cause severe respiratory and hemorrhagic diseases, respectively. The production of infectious particles of both viruses and virus spread in tissues requires cleavage of surface glycoproteins (GPs) by host proprotein convertases (PCs). SARS-CoV-2 and arenaviruses rely on GP cleavage by PCs furin and subtilisin kexin isozyme-1/site-1 protease (SKI-1/S1P), respectively. We report improved luciferase-based reporter cell lines, named luminescent inducible proprotein convertase reporter cells that we employ to monitor PC activity in its authentic subcellular compartment. Using these sensor lines we screened a small compound library in high-throughput manner. We identified 23 FDA-approved small molecules, among them monensin which displayed broad activity against furin and SKI-1/S1P. Monensin inhibited arenaviruses and SARS-CoV-2 in a dose-dependent manner. We observed a strong reduction in infectious particle release upon monensin treatment with little effect on released genome copies. This was reflected by inhibition of SARS-CoV-2 spike processing suggesting the release of immature particles. In a proof of concept experiment using human precision cut lung slices, monensin potently inhibited SARS-CoV-2 infection, evidenced by reduced infectious particle release. We propose that our PC sensor pipeline is a suitable tool to identify broad-spectrum antivirals with therapeutic potential to combat current and future emerging viruses.
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Affiliation(s)
- Karin Löw
- Department of Biochemistry & Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Hannover, Germany
- Institute of Microbiology, University Hospital Center and University of Lausanne, Lausanne, Switzerland
| | - Rebecca Möller
- Department of Biochemistry & Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Hannover, Germany
| | - Cora Stegmann
- Department of Biochemistry & Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Hannover, Germany
| | - Miriam Becker
- Department of Biochemistry & Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Hannover, Germany
| | - Laura Rehburg
- Department of Biochemistry & Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Hannover, Germany
| | - Helena Obernolte
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Hannover, Germany
- Fraunhofer International Consortium for Anti-Infective Research (iCAIR), Hannover, Germany
- Fraunhofer Cluster of Excellence Immune-Mediated Diseases, (CIMD), Hannover, Germany
- Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease (BREATH) Research Network, Hannover, Germany
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - Dirk Schaudien
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Hannover, Germany
- Fraunhofer International Consortium for Anti-Infective Research (iCAIR), Hannover, Germany
- Fraunhofer Cluster of Excellence Immune-Mediated Diseases, (CIMD), Hannover, Germany
- Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease (BREATH) Research Network, Hannover, Germany
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - Lisa Oestereich
- Department of Virology, Bernhard-Nocht Institute for Tropical Medicine, Hamburg, Germany
- German Center for Infectious Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, Hamburg
| | - Armin Braun
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Hannover, Germany
- Fraunhofer International Consortium for Anti-Infective Research (iCAIR), Hannover, Germany
- Fraunhofer Cluster of Excellence Immune-Mediated Diseases, (CIMD), Hannover, Germany
- Member of the German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease (BREATH) Research Network, Hannover, Germany
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - Stefan Kunz
- Institute of Microbiology, University Hospital Center and University of Lausanne, Lausanne, Switzerland
| | - Gisa Gerold
- Department of Biochemistry & Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Hannover, Germany
- Department of Clinical Microbiology, Umeå University, Sweden
- Wallenberg Centre for Molecular Medicine (WCMM), Umeå University, Sweden
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Jiao F, Andrianov AM, Wang L, Furs KV, Gonchar AV, Wang Q, Xu W, Lu L, Xia S, Tuzikov AV, Jiang S. Repurposing Navitoclax to block SARS-CoV-2 fusion and entry by targeting heptapeptide repeat sequence 1 in S2 protein. J Med Virol 2023; 95:e29145. [PMID: 37804480 DOI: 10.1002/jmv.29145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/28/2023] [Accepted: 09/10/2023] [Indexed: 10/09/2023]
Abstract
Along with the long pandemic of COVID-19 caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has come the dilemma of emerging viral variants of concern (VOC), particularly Omicron and its subvariants, able to deftly escape immune surveillance and the otherwise protective effect of current vaccines and antibody drugs. We previously identified a peptide-based pan-CoV fusion inhibitor, termed as EK1, able to bind the HR1 region in viral spike (S) protein S2 subunit. This effectively blocked formation of the six-helix bundle (6-HB) fusion core and, thus, showed efficacy against all human coronaviruses (HCoVs). EK1 is now in phase 3 clinical trials. However, the peptide drug generally lacks oral availability. Therefore, we herein performed a structure-based virtual screening of the libraries of biologically active molecules and identified nine candidate compounds. One is Navitoclax, an orally active anticancer drug by inhibition of Bcl-2. Like EK1 peptide, it could bind HR1 and block 6-HB formation, efficiently inhibiting fusion and infection of all SARS-CoV-2 variants tested, as well as SARS-CoV and MERS-CoV, with IC50 values ranging from 0.5 to 3.7 μM. These findings suggest that Navitoclax is a promising repurposed drug candidate for development as a safe and orally available broad-spectrum antiviral drug to combat the current SARS-CoV-2 and its variants, as well as other HCoVs.
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Affiliation(s)
- Fanke Jiao
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), Shanghai Institute of Infectious Disease and Biosecurity, School of Basic Medical Sciences, Shanghai Frontiers Science Center of Pathogenic Microbes and Infection, Fudan University, Shanghai, China
| | - Alexander M Andrianov
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Minsk, Belarus
| | - Lijue Wang
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), Shanghai Institute of Infectious Disease and Biosecurity, School of Basic Medical Sciences, Shanghai Frontiers Science Center of Pathogenic Microbes and Infection, Fudan University, Shanghai, China
| | - Konstantin V Furs
- United Institute of Informatics Problems, National Academy of Sciences of Belarus, Minsk, Belarus
| | - Anna V Gonchar
- United Institute of Informatics Problems, National Academy of Sciences of Belarus, Minsk, Belarus
| | - Qian Wang
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), Shanghai Institute of Infectious Disease and Biosecurity, School of Basic Medical Sciences, Shanghai Frontiers Science Center of Pathogenic Microbes and Infection, Fudan University, Shanghai, China
| | - Wei Xu
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), Shanghai Institute of Infectious Disease and Biosecurity, School of Basic Medical Sciences, Shanghai Frontiers Science Center of Pathogenic Microbes and Infection, Fudan University, Shanghai, China
| | - Lu Lu
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), Shanghai Institute of Infectious Disease and Biosecurity, School of Basic Medical Sciences, Shanghai Frontiers Science Center of Pathogenic Microbes and Infection, Fudan University, Shanghai, China
| | - Shuai Xia
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), Shanghai Institute of Infectious Disease and Biosecurity, School of Basic Medical Sciences, Shanghai Frontiers Science Center of Pathogenic Microbes and Infection, Fudan University, Shanghai, China
| | - Alexander V Tuzikov
- United Institute of Informatics Problems, National Academy of Sciences of Belarus, Minsk, Belarus
| | - Shibo Jiang
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), Shanghai Institute of Infectious Disease and Biosecurity, School of Basic Medical Sciences, Shanghai Frontiers Science Center of Pathogenic Microbes and Infection, Fudan University, Shanghai, China
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11
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Shah M, Woo HG. Assessment of neutralization susceptibility of Omicron subvariants XBB.1.5 and BQ.1.1 against broad-spectrum neutralizing antibodies through epitopes mapping. Front Mol Biosci 2023; 10:1236617. [PMID: 37828918 PMCID: PMC10565033 DOI: 10.3389/fmolb.2023.1236617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 08/31/2023] [Indexed: 10/14/2023] Open
Abstract
The emergence of new variants of the SARS-CoV-2 virus has posed a significant challenge in developing broadly neutralizing antibodies (nAbs) with guaranteed therapeutic potential. Some nAbs, such as Sotrovimab, have exhibited varying levels of efficacy against different variants, while others, such as Bebtelovimab and Bamlanivimab-etesevimab are ineffective against specific variants, including BQ.1.1 and XBB. This highlights the urgent need for developing broadly active monoclonal antibodies (mAbs) providing prophylactic and therapeutic benefits to high-risk patients, especially in the face of the risk of reinfection from new variants. Here, we aimed to investigate the feasibility of redirecting existing mAbs against new variants of SARS-CoV-2, as well as to understand how BQ.1.1 and XBB.1.5 can evade broadly neutralizing mAbs. By mapping epitopes and escape sites, we discovered that the new variants evade multiple mAbs, including FDA-approved Bebtelovimab, which showed resilience against other Omicron variants. Our approach, which included simulations, endpoint free energy calculation, and shape complementarity analysis, revealed the possibility of identifying mAbs that are effective against both BQ.1.1 and XBB.1.5. We identified two broad-spectrum mAbs, R200-1F9 and R207-2F11, as potential candidates with increased binding affinity to XBB.1.5 and BQ.1.1 compared to the reference (Wu01) strain. Additionally, we propose that these mAbs do not interfere with Angiotensin Converting Enzyme 2 (ACE2) and bind to conserved epitopes on the receptor binding domain of Spike that are not-overlapping, potentially providing a solution to neutralize these new variants either independently or as part of a combination (cocktail) treatment.
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Affiliation(s)
- Masaud Shah
- Department of Physiology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Hyun Goo Woo
- Department of Physiology, Ajou University School of Medicine, Suwon, Republic of Korea
- Department of Biomedical Science, Graduate School, Ajou University, Suwon, Republic of Korea
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Tang L, Jia X, Ma H, Liu S, Chen Y, Tao T, Chen L, Wu J, Li C, Wang X, Weng J. Microwave Absolute Distance Measurement Method with Ten-Micron-Level Accuracy and Meter-Level Range Based on Frequency Domain Interferometry. Sensors (Basel) 2023; 23:7898. [PMID: 37765955 PMCID: PMC10537313 DOI: 10.3390/s23187898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023]
Abstract
A microwave absolute distance measurement method with ten-micron-level accuracy and meter-level range based on frequency domain interferometry is proposed and experimentally demonstrated for the first time. Theoretical analysis indicates that an interference phenomenon occurs instantaneously in the frequency domain when combining two homologous broad-spectrum microwave beams with different paths, and the absolute value of the distance difference between the two paths is only inversely proportional to the period of frequency domain interference fringes. The proof-of-principle experiments were performed to prove that the proposed method can achieve absolute distance measurement in the X-band with standard deviations of 15 μm, 17 μm, and 26 μm and within ranges of 1.69 m, 2.69 m, and 3.75 m. Additionally, a displacement resolution of 100 microns was realized. The multi-target recognition performance was also verified in principle. Furthermore, at the expense of a slight decrease in ranging accuracy, a fast distance measurement with the single measurement time of 20 μs was achieved by using a digitizer combined with a Fourier transform analyzer. Compared with the current microwave precision ranging technologies, the proposed method not only has the advantages of high precision, large range, and rapid measurement capability, but the required components are also easily obtainable commercial devices. The proposed method also has better complex engineering applicability, because the ten-micron-level ranging accuracy is achievable only by using a simple Fourier transform without any phase estimation algorithm, which greatly reduces the requirement for signal-to-noise ratio.
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Affiliation(s)
- Longhuang Tang
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China; (X.J.); (H.M.); (S.L.); (Y.C.); (T.T.); (L.C.); (J.W.); (C.L.); (X.W.)
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - Xing Jia
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China; (X.J.); (H.M.); (S.L.); (Y.C.); (T.T.); (L.C.); (J.W.); (C.L.); (X.W.)
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - Heli Ma
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China; (X.J.); (H.M.); (S.L.); (Y.C.); (T.T.); (L.C.); (J.W.); (C.L.); (X.W.)
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - Shenggang Liu
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China; (X.J.); (H.M.); (S.L.); (Y.C.); (T.T.); (L.C.); (J.W.); (C.L.); (X.W.)
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - Yongchao Chen
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China; (X.J.); (H.M.); (S.L.); (Y.C.); (T.T.); (L.C.); (J.W.); (C.L.); (X.W.)
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - Tianjiong Tao
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China; (X.J.); (H.M.); (S.L.); (Y.C.); (T.T.); (L.C.); (J.W.); (C.L.); (X.W.)
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - Long Chen
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China; (X.J.); (H.M.); (S.L.); (Y.C.); (T.T.); (L.C.); (J.W.); (C.L.); (X.W.)
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - Jian Wu
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China; (X.J.); (H.M.); (S.L.); (Y.C.); (T.T.); (L.C.); (J.W.); (C.L.); (X.W.)
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - Chengjun Li
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China; (X.J.); (H.M.); (S.L.); (Y.C.); (T.T.); (L.C.); (J.W.); (C.L.); (X.W.)
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - Xiang Wang
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China; (X.J.); (H.M.); (S.L.); (Y.C.); (T.T.); (L.C.); (J.W.); (C.L.); (X.W.)
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - Jidong Weng
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China; (X.J.); (H.M.); (S.L.); (Y.C.); (T.T.); (L.C.); (J.W.); (C.L.); (X.W.)
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
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Marquez AB, Vicente J, Castro E, Vota D, Rodríguez-Varela MS, Lanza Castronuovo PA, Fuentes GM, Parise AR, Romorini L, Alvarez DE, Bueno CA, Ramirez CL, Alaimo A, García CC. Broad-Spectrum Antiviral Effect of Cannabidiol Against Enveloped and Nonenveloped Viruses. Cannabis Cannabinoid Res 2023. [PMID: 37682578 DOI: 10.1089/can.2023.0103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023] Open
Abstract
Introduction: Cannabidiol (CBD), the main non-psychoactive cannabinoid of the Cannabis sativa plant, is a powerful antioxidant compound that in recent years has increased interest due to causes effects in a wide range of biological functions. Zika virus (ZIKV) is a virus transmitted mainly by the Aedes aegypti mosquitoes, which causes neurological diseases, such as microcephaly and Guillain-Barre syndrome. Although the frequency of viral outbreaks has increased recently, no vaccinations or particular chemotherapeutic treatments are available for ZIKV infection. Objectives: The major aim of this study was to explore the in vitro antiviral activity of CBD against ZIKV, expanding also to other dissimilar viruses. Materials and Methods: Cell cultures were infected with enveloped and nonenveloped viruses and treated with non-cytotoxic concentrations of CBD and then, viral titers were determined. Additionally, the mechanism of action of the compound during ZIKV in vitro infections was studied. To study the possible immunomodulatory role of CBD, infected and uninfected Huh-7 cells were exposed to 10 μM CBD during 48 h and levels of interleukins 6 and 8 and interferon-beta (IFN-β) expression levels were measured. On the other hand, the effect of CBD on cellular membranes was studied. For this, an immunofluorescence assay was performed, in which cell membranes were labeled with wheat germ agglutinin. Finally, intracellular cholesterol levels were measured. Results: CBD exhibited a potent antiviral activity against all the tested viruses in different cell lines with half maximal effective concentration values (CE50) ranging from 0.87 to 8.55 μM. Regarding the immunomodulatory effect of CBD during ZIKV in vitro infections, CBD-treated cells exhibited significantly IFN-β increased levels, meanwhile, interleukins 6 and 8 were not induced. Furthermore, it was determined that CBD affects cellular membranes due to the higher fluorescence intensity that was observed in CBD-treated cells and lowers intracellular cholesterol levels, thus affecting the multiplication of ZIKV and other viruses. Conclusions: It was demonstrated that CBD inhibits structurally dissimilar viruses, suggesting that this phytochemical has broad-spectrum antiviral effect, representing a valuable alternative in emergency situations during viral outbreaks, like the one caused by severe acute respiratory syndrome coronavirus 2 in 2020.
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Affiliation(s)
- Agostina B Marquez
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), UBA-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Josefina Vicente
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), UBA-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Eliana Castro
- Instituto de Investigaciones Biotecnológicas (IIBIO), Universidad Nacional de San Martín (UNSAM)-(CONICET), Buenos Aires, Argentina
| | - Daiana Vota
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), UBA-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Laboratorio de Inmunofarmacología, IQUIBICEN, UBA-CONICET, Buenos Aires, Argentina
| | - María S Rodríguez-Varela
- Laboratorio de Investigación Aplicada a Neurociencias (LIAN), Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (Fleni)-CONICET, Instituto de Neurociencias (INEU), Buenos Aires, Argentina
| | - Priscila A Lanza Castronuovo
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC), Química Analítica y Modelado Molecular (QUIAMM), Universidad Nacional de Mar del Plata-CONICET, Mar del Plata, Argentina
| | - Giselle M Fuentes
- Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Centro Científico Tecnológico Mar del Plata, CONICET, Mar del Plata, Argentina
- Centro de Asociación Simple CIC PBA, Mar del Plata, Argentina
- Centro de Investigaciones en Abejas Sociales, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Alejandro R Parise
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC), Química Analítica y Modelado Molecular (QUIAMM), Universidad Nacional de Mar del Plata-CONICET, Mar del Plata, Argentina
- Departamento de Química Biológica y Bioquímica, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Leonardo Romorini
- Laboratorio de Investigación Aplicada a Neurociencias (LIAN), Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (Fleni)-CONICET, Instituto de Neurociencias (INEU), Buenos Aires, Argentina
| | - Diego E Alvarez
- Instituto de Investigaciones Biotecnológicas (IIBIO), Universidad Nacional de San Martín (UNSAM)-(CONICET), Buenos Aires, Argentina
- Escuela de Bio y Nanotecnologías (EByN), Universidad Nacional de San Martín, Buenos Aires, Argentina
| | - Carlos A Bueno
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), UBA-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Cristina L Ramirez
- Departamento de Química Biológica y Bioquímica, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
- Asociación Civil CBG2000, Mar del Plata, Argentina
| | - Agustina Alaimo
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), UBA-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Cybele C García
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), UBA-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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14
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Fang A, Yuan Y, Sui B, Wang Z, Zhang Y, Zhou M, Chen H, Fu ZF, Zhao L. Inhibition of miR-200b-3p confers broad-spectrum resistance to viral infection by targeting TBK1. mBio 2023; 14:e0086723. [PMID: 37222520 PMCID: PMC10470528 DOI: 10.1128/mbio.00867-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 04/11/2023] [Indexed: 05/25/2023] Open
Abstract
The host innate immune system's defense against viral infections depends heavily on type I interferon (IFN-I) production. Research into the mechanisms of virus-host interactions is essential for developing novel antiviral therapies. In this study, we compared the effect of the five members of the microRNA-200 (miR-200) family on IFN-I production during viral infection and found that miR-200b-3p displayed the most pronounced regulatory effect. During viral infection, we discovered that the transcriptional level of microRNA-200b-3p (miR-200b-3p) increased with the infection of influenza virus (IAV) and vesicular stomatitis virus (VSV), and miR-200b-3p production was modulated by the activation of the ERK and p38 pathways. We identified cAMP response element binding protein (CREB) as a novel transcription factor that binds to the miR-200b-3p promoter. MiR-200b-3p reduces NF-κB and IRF3-mediated IFN-I production by targeting the 3' untranslated region (3' UTR) of TBK1 mRNA. Applying miR-200b-3p inhibitor enhances IFN-I production in IAV and VSV-infected mouse models, thus inhibiting viral replication and improving mouse survival ratio. Importantly, in addition to IAV and VSV, miR-200b-3p inhibitors exhibited potent antiviral effects against multiple pathogenic viruses threatening human health worldwide. Overall, our study suggests that miR-200b-3p might be a potential therapeutic target for broad-spectrum antiviral therapy. IMPORTANCE The innate immune response mediated by type I interferon (IFN-I) is essential for controlling viral replication. MicroRNAs (miRNAs) have been found to regulate the IFN signaling pathway. In this study, we describe a novel function of miRNA-200b-3p in negatively regulating IFN-I production during viral infection. miRNA-200b-3p was upregulated by the MAPK pathway activated by IAV and VSV infection. The binding of miRNA-200b-3p to the 3' UTR of TBK1 mRNA reduced IFN-I activation mediated by IRF3 and NF-κB. Application of miR-200b-3p inhibitors exhibited potent antiviral effects against multiple RNA and DNA viruses. These results provide fresh insight into understanding the impact of miRNAs on host-virus interactions and reveal a potential therapeutic target for common antiviral intervention.
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Affiliation(s)
- An Fang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Preventive Veterinary Medicine of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yueming Yuan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Preventive Veterinary Medicine of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Baokuen Sui
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Preventive Veterinary Medicine of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Zhihui Wang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Preventive Veterinary Medicine of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yuan Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Preventive Veterinary Medicine of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Ming Zhou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Preventive Veterinary Medicine of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Huanchun Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Preventive Veterinary Medicine of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
| | - Zhen F. Fu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Preventive Veterinary Medicine of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Ling Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Preventive Veterinary Medicine of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
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15
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Grazia Martina M, Giammarino F, Vicenti I, Groaz E, Rozenski J, Incerti M, Sannio F, Docquier JD, Zazzi M, Radi M. Nucleoside Derivatives of 2,6-Diaminopurine Antivirals: Base-Modified Nucleosides with Broad-Spectrum Antimicrobial Properties. ChemMedChem 2023; 18:e202300200. [PMID: 37221137 DOI: 10.1002/cmdc.202300200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 05/25/2023]
Abstract
The plethora of viral outbreaks experienced in the last decade, together with the widespread distribution of many re-emerging and newly emerging viruses, emphasize the urgent need for novel broad-spectrum antivirals as tools for early intervention in case of future epidemics. Non-natural nucleosides have been at the forefront for the treatment of infectious diseases for many years and still represent one of the most successful classes of antiviral molecules on the market. In the attempt to explore the biologically relevant chemical space of this class of antimicrobials, we describe herein the development of novel base-modified nucleosides by converting previously identified 2,6-diaminopurine antivirals into the corresponding D/L ribonucleosides, acyclic nucleosides and prodrug derivatives. A phenotypic screening against viruses belonging to different families (Flaviviridae, Coronaviridae, Retroviridae) and against a panel of Gram-positive and Gram-negative bacteria, allowed to identify a few interesting molecules with broad-spectrum antimicrobial activities.
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Affiliation(s)
- Maria Grazia Martina
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parco Area delle Scienze, 27/A, 43124, Parma, Italy
| | - Federica Giammarino
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, Viale Bracci 16, 53100, Siena, Italy
| | - Ilaria Vicenti
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, Viale Bracci 16, 53100, Siena, Italy
| | - Elisabetta Groaz
- Rega Institute for Medical Research, Medicinal Chemistry, KU Leuven, Herestraat 49-Box 1041, 3000, Leuven, Belgium
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo 5, 35131, Padova, Italy
| | - Jef Rozenski
- Rega Institute for Medical Research, Medicinal Chemistry, KU Leuven, Herestraat 49-Box 1041, 3000, Leuven, Belgium
| | - Matteo Incerti
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parco Area delle Scienze, 27/A, 43124, Parma, Italy
| | - Filomena Sannio
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, Viale Bracci 16, 53100, Siena, Italy
| | - Jean Denis Docquier
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, Viale Bracci 16, 53100, Siena, Italy
- Laboratoire de Bactériologie Moléculaire, Centre d'Ingénierie des Protéines, University of Liège, Allée du 6 Août, 4000, Liège, Belgium
| | - Maurizio Zazzi
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, Viale Bracci 16, 53100, Siena, Italy
| | - Marco Radi
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parco Area delle Scienze, 27/A, 43124, Parma, Italy
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16
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Bakare OO, Gokul A, Niekerk LA, Aina O, Abiona A, Barker AM, Basson G, Nkomo M, Otomo L, Keyster M, Klein A. Recent Progress in the Characterization, Synthesis, Delivery Procedures, Treatment Strategies, and Precision of Antimicrobial Peptides. Int J Mol Sci 2023; 24:11864. [PMID: 37511621 PMCID: PMC10380191 DOI: 10.3390/ijms241411864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/20/2023] [Accepted: 07/22/2023] [Indexed: 07/30/2023] Open
Abstract
Infectious diseases are constantly evolving to bypass antibiotics or create resistance against them. There is a piercing alarm for the need to improve the design of new effective antimicrobial agents such as antimicrobial peptides which are less prone to resistance and possess high sensitivity. This would guard public health in combating and overcoming stubborn pathogens and mitigate incurable diseases; however, the emergence of antimicrobial peptides' shortcomings ranging from untimely degradation by enzymes to difficulty in the design against specific targets is a major bottleneck in achieving these objectives. This review is aimed at highlighting the recent progress in antimicrobial peptide development in the area of nanotechnology-based delivery, selectivity indices, synthesis and characterization, their doping and coating, and the shortfall of these approaches. This review will raise awareness of antimicrobial peptides as prospective therapeutic agents in the medical and pharmaceutical industries, such as the sensitive treatment of diseases and their utilization. The knowledge from this development would guide the future design of these novel peptides and allow the development of highly specific, sensitive, and accurate antimicrobial peptides to initiate treatment regimens in patients to enable them to have accommodating lifestyles.
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Affiliation(s)
- Olalekan Olanrewaju Bakare
- Department of Biochemistry, Faculty of Basic Medical Sciences, Olabisi Onabanjo University, Sagamu 2002, Nigeria
| | - Arun Gokul
- Department of Plant Sciences, Qwaqwa Campus, University of the Free State, Phuthadithjaba 9866, South Africa
| | - Lee-Ann Niekerk
- Environmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Omolola Aina
- Plant Omics Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Ademola Abiona
- Department of Biochemistry, Faculty of Basic Medical Sciences, Olabisi Onabanjo University, Sagamu 2002, Nigeria
| | - Adele Mariska Barker
- Environmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Gerhard Basson
- Environmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Mbukeni Nkomo
- Department of Botany, H13 Botany Building, University of Zululand, Private Bag X1001, KwaDlangezwa 3886, South Africa
| | - Laetitia Otomo
- Department of Plant Sciences, Qwaqwa Campus, University of the Free State, Phuthadithjaba 9866, South Africa
| | - Marshall Keyster
- Environmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Ashwil Klein
- Plant Omics Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
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17
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He L, Wang C, Zhang Y, Chong H, Hu X, Li D, Xing H, He Y, Shao Y, Hong K, Ma L. Broad-spectrum anti-HIV activity and high drug resistance barrier of lipopeptide HIV fusion inhibitor LP-19. Front Immunol 2023; 14:1199938. [PMID: 37256122 PMCID: PMC10225588 DOI: 10.3389/fimmu.2023.1199938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/02/2023] [Indexed: 06/01/2023] Open
Abstract
Lipopeptide-19, a HIV fusion inhibitor (LP-19), has showed potent anti-HIV activity. However, there is still limited information of the antiviral activity against different subtype clinical isolates and the drug resistance barrier of LP-19. Therefore, 47 HIV clinical isolates were selected for this study. The viral features were identified, in which 43 strains are CCR5 tropisms, and 4 strains are CCR5/CXCR4 tropisms, and there are 6 subtype B', 15 CRF01_AE, 14 CRF07_BC, 2 CRF08_BC and 10 URF strains. These 47 viruses were used to detected and analyze the inhibitory activities of LP-19. The results showed that the average 50% inhibitory concentration (IC50) and 90% inhibitory concentration (IC90) of LP-19 were 0.50 nM and 1.88 nM, respectively. The average IC50 of LP-19 to B', CRF01_AE, CRF07_BC, CRF08_BC, and URF strains was 0.76 nM, 0.29 nM, 0.38 nM, 0.85 nM, and 0.44 nM, respectively. C34 and Enfuvirtide (T-20), two fusion inhibitors, were compared on the corresponding strains simultaneously. The antiviral activity of LP-19 was 16.7-fold and 86-fold higher than that of C34 and T-20. The antiviral activity of LP-19, C34, and T-20 were further detected and showed IC50 was 0.15 nM, 1.02 nM, and 66.19 nM, respectively. IC50 of LP-19 was about 7-fold and 441-fold higher compared to C34 and T-20 against HIV-1 NL4-3 strains. NL4-3 strains were exposed to increasing concentrations of LP-19 and C34 in MT-2 cell culture. The culture virus was sequenced and analyzed. The results showed that A243V mutation site identified at weeks 28, 32, 38, and 39 of the cell culture in the gp41 CP (cytoplasmic domain) region. NL4-3/A243V viruses containing A243V mutation were constructed. Comparing the antiviral activities of LP-19 against HIV NL4-3 to HIV strains (only 1.3-fold), HIV did not show drug resistance when LP-19 reached 512-fold of the initial concentration under the drug pressure for 39 weeks. This study suggests that LP-19 has broad-spectrum anti-HIV activity, and high drug resistance barrier.
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Affiliation(s)
- Lin He
- State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Chen Wang
- State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- Department of Laboratory Medicine, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China
| | - Yuanyuan Zhang
- State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Huihui Chong
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology and Center for AIDS Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaoyan Hu
- State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Dan Li
- State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hui Xing
- State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yuxian He
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology and Center for AIDS Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yiming Shao
- State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Kunxue Hong
- State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Liying Ma
- State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
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18
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Vicente J, Benedetti M, Martelliti P, Vázquez L, Gentilini MV, Peñaranda Figueredo FA, Nabaes Jodar MS, Viegas M, Barquero AA, Bueno CA. The Flavonoid Cyanidin Shows Immunomodulatory and Broad-Spectrum Antiviral Properties, Including SARS-CoV-2. Viruses 2023; 15:v15040989. [PMID: 37112969 PMCID: PMC10143848 DOI: 10.3390/v15040989] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/05/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
New antiviral treatments are needed to deal with the unpredictable emergence of viruses. Furthermore, vaccines and antivirals are only available for just a few viral infections, and antiviral drug resistance is an increasing concern. Cyanidin (a natural product also called A18), a key flavonoid that is present in red berries and other fruits, attenuates the development of several diseases, through its anti-inflammatory effects. Regarding its mechanism of action, A18 was identified as an IL-17A inhibitor, resulting in the attenuation of IL-17A signaling and associated diseases in mice. Importantly, A18 also inhibits the NF-κB signaling pathway in different cell types and conditions in vitro and in vivo. In this study, we report that A18 restricts RSV, HSV-1, canine coronavirus, and SARS-CoV-2 multiplication, indicating a broad-spectrum antiviral activity. We also found that A18 can control cytokine and NF-κB induction in RSV-infected cells independently of its antiviral activity. Furthermore, in mice infected with RSV, A18 not only significantly reduces viral titers in the lungs, but also diminishes lung injury. Thus, these results provide evidence that A18 could be used as a broad-spectrum antiviral and may contribute to the development of novel therapeutic targets to control these viral infections and pathogenesis.
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Affiliation(s)
- Josefina Vicente
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, Buenos Aires 1428, Argentina
| | - Martina Benedetti
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
| | - Paula Martelliti
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
| | - Luciana Vázquez
- Unidad Operativa Centro de Contención Biológica (UOCCB), Administración Nacional de Laboratorios e Institutos de Salud (ANLIS), Buenos Aires 1282, Argentina
| | - María Virginia Gentilini
- Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMETTYB)-CONICET, Buenos Aires 1093, Argentina
| | - Freddy Armando Peñaranda Figueredo
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, Buenos Aires 1428, Argentina
| | - Mercedes Soledad Nabaes Jodar
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1425, Argentina
- Laboratorio de Virología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires 1417, Argentina
| | - Mariana Viegas
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1425, Argentina
- Laboratorio de Virología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires 1417, Argentina
| | - Andrea Alejandra Barquero
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, Buenos Aires 1428, Argentina
| | - Carlos Alberto Bueno
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, Buenos Aires 1428, Argentina
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19
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Kumar R, Barua S, Tripathi BN, Kumar N. Role of ROCK signaling in virus replication. Virus Res 2023; 329:199105. [PMID: 36977446 DOI: 10.1016/j.virusres.2023.199105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 03/23/2023] [Accepted: 03/25/2023] [Indexed: 03/30/2023]
Abstract
Rho-associated protein kinase (ROCK) is a serine-threonine kinase and is a major downstream effecter of the small GTPaseRhoA. Upon activation, Rho/ROCK cell signaling pathway regulates cell morphology, polarity, and cytoskeletal remodeling. Recent years have highlighted the role of ROCK signalling pathway in the replication of diverse group of viruses. Cell contractions and membrane blebbing induced by certain group of viruses is mediated via ROCK signaling and facilitate virus replication by sequestration of cellular factors and anchoring them at replication sites (viral factories). Besides, ROCK signaling also stabilizes the nascent viral mRNA for its efficient transcription and translation and, regulates trafficking of the viral proteins. In addition, ROCK signaling is also involved in modulating the immune response to viral infections. This review describes the regulation of virus replication by ROCK signaling with the basic aim of defining it as a target for the development of novel antiviral therapeutics.
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Affiliation(s)
- Ram Kumar
- Virology Laboratory, National Centre for Veterinary Type Cultures, Hisar, Haryana 125001, India
| | - Sanjay Barua
- Virology Laboratory, National Centre for Veterinary Type Cultures, Hisar, Haryana 125001, India
| | - Bhupendra Nath Tripathi
- Virology Laboratory, National Centre for Veterinary Type Cultures, Hisar, Haryana 125001, India
| | - Naveen Kumar
- Virology Laboratory, National Centre for Veterinary Type Cultures, Hisar, Haryana 125001, India.
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20
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Qian Chen, Pei Du, Yuxuan Han, Xuehui Ma, Rong Zhang, Xiaoyu Rong, Xu Zhao, Renyi Ma, Huiting Yang, Anqi Zheng, Qingrui Huang, Jinghua Yan, Hui Wang, Xin Zhao, Lianpan Dai, George F. Gao, Qihui Wang. Rapid evaluation of heterologous chimeric RBD-dimer mRNA vaccine for currently-epidemic Omicron sub-variants as booster shot after inactivated vaccine. Biosaf Health 2023. [PMID: 37123450 PMCID: PMC9979697 DOI: 10.1016/j.bsheal.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/22/2023] [Accepted: 02/25/2023] [Indexed: 03/06/2023] Open
Abstract
With continuous mutations of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the severe immune escape of Omicron sub-variants urges the development of next-generation broad-spectrum vaccines, especially as booster jabs after high-level vaccination coverage of inactivated vaccines in China and many other countries. Previously, we developed a coronavirus disease 2019 (COVID-19) protein subunit vaccine ZF2001® based on the tandem homo-prototype receptor-binding domain (RBD)-dimer of the SARS-CoV-2 spike protein. We upgraded the antigen into a hetero-chimeric prototype (PT)-Beta or Delta-BA.1 RBD-dimer to broaden the cross-protection efficacy and prove its efficiency with protein subunit and mRNA vaccine platforms. Herein, we further explored the hetero-chimeric RBD-dimer mRNA vaccines and evaluated their broad-spectrum activities as booster jabs following two doses of inactivated vaccine in mice. Our data demonstrated that the chimeric vaccines significantly boosted neutralizing antibody levels and specific T-cell responses against the variants, and PT-Beta was superior to Delta-BA.1 RBD as a booster in mice, shedding light on the antigen design for the next-generation COVID-19 vaccines.
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21
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Aldardeer NF, Shukairi ANAL, Nasser ME, Al Musawa M, Kalkatawi BS, Alsahli RM, Ramdan AME, Qushmaq I, Aldhaeefi M. Continuation Versus De-escalation of Broad-Spectrum Antibiotic Therapy in Critically Ill COVID-19 Patients. Dr. Sulaiman Al Habib Med J 2023. [PMCID: PMC9972303 DOI: 10.1007/s44229-023-00027-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
Background Antibiotic de-escalation (ADE) is a stewardship initiative that aims to reduce exposure to antimicrobials, thus limiting their unwanted effect, including antimicrobial resistance. Our study aims to describe the impact of ADE compared with the continuation of therapy on the outcome of critically ill coronavirus disease 2019 (COVID-19) patients. Material and Methods A single-center retrospective study included critically ill COVID-19 adult patients admitted between January 1, 2019 and August 31, 2021, and started on broad-spectrum antibiotics. The primary outcome was intensive care unit (ICU) mortality. In addition, other clinical outcomes were evaluated, including ICU readmissions, length of stay, and superinfection. Results The study included 73 patients with a mean age of 61.0 ± 19.4, and ADE was performed in 10 (13.6%) of these. In the ADE group, 8/10 (80%) cultures were positive. ICU mortality was not statistically different between ADE and continuation of therapy groups (60 vs. 41.3%, respectively, P = 0.317). Superinfection occurred in 4 (5.4%) patients. Hospital mortality, length of stay, and ICU readmission rates did not differ significantly between groups. Conclusion De-escalation of broad-spectrum antibiotics in critically ill covid-19 patients was not associated with higher mortality. A larger cohort is needed to confirm these findings. Supplementary Information The online version contains supplementary material available at 10.1007/s44229-023-00027-0.
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Affiliation(s)
| | - Abeer Nizar A. L. Shukairi
- Department of Medicine, King Faisal Specialist Hospital and Research Centre, Jeddah, Saudi Arabia ,College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Mohannad E. Nasser
- King Faisal Specialist Hospital and Research Centre, Jeddah, Saudi Arabia
| | - Mohammad Al Musawa
- Medication Safety/Clinical Support Pharmacy, King Faisal Specialist Hospital and Research Centre (Gen. Org.), Jeddah, Saudi Arabia
| | | | | | | | - Ismael Qushmaq
- Section of Critical Care Medicine, Department of Medicine, King Faisal Specialist Hospital and Research Center (Gen. Org.), Jeddah, Saudi Arabia
| | - Mohammed Aldhaeefi
- Department of Clinical and Administrative Pharmacy Sciences, College of Pharmacy, Howard University, Washington, DC, USA
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22
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Liao LG, Ke D, Li GC, Zhang S, Li BJ. Cyclodextrin Metal-Organic Framework as a Broad-Spectrum Potential Delivery Vehicle for the Gasotransmitters. Molecules 2023; 28. [PMID: 36677910 DOI: 10.3390/molecules28020852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/27/2022] [Accepted: 01/09/2023] [Indexed: 01/18/2023]
Abstract
The important role of gasotransmitters in physiology and pathophysiology suggest employing gasotransmitters for biomedical treatment. Unfortunately, the difficulty in storage and controlled delivery of these gaseous molecules hindered the development of effective gasotransmitters-based therapies. The design of a safe, facile, and wide-scale method to delivery multiple gasotransmitters is a great challenge. Herein, we use an ultrasonic assisted preparation γ-cyclodextrin metal organic framework (γ-CD-MOF) as a broad-spectrum delivery vehicle for various gasotransmitters, such as SO2, NO, and H2S. The release rate of gasotransmitters could be tuned by modifying the γ-CD-MOF with different Pluronics. The biological relevance of the exogenous gasotransmitters produced by this method is evidenced by the DNA cleavage ability and the anti-inflammatory effects. Furthermore, the γ-CD-MOF composed of food-grade γ-CD and nontoxic metal salts shows good biocompatibility and particle size (180 nm). Therefore, γ-CD-MOF is expected to be an excellent tool for the study of co-delivery and cooperative therapy of gasotransmitters.
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23
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Hernandez LE, Mohsin N, Frech F, Nouri K. Sunscreen compliance with American Academy of Dermatology recommendations: A 2022 update and cross-sectional study. J Am Acad Dermatol 2023; 88:231-232. [PMID: 35551961 DOI: 10.1016/j.jaad.2022.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/16/2022] [Accepted: 05/01/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Loren E Hernandez
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Miller School of Medicine, University of Miami, Miami, Florida.
| | - Noreen Mohsin
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Miller School of Medicine, University of Miami, Miami, Florida
| | - Fabio Frech
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Miller School of Medicine, University of Miami, Miami, Florida
| | - Keyvan Nouri
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Miller School of Medicine, University of Miami, Miami, Florida
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24
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Monferrer A, Kretzmann JA, Sigl C, Sapelza P, Liedl A, Wittmann B, Dietz H. Broad-Spectrum Virus Trapping with Heparan Sulfate-Modified DNA Origami Shells. ACS Nano 2022; 16:20002-20009. [PMID: 36323320 PMCID: PMC9798855 DOI: 10.1021/acsnano.1c11328] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 09/29/2022] [Indexed: 05/21/2023]
Abstract
Effective broadband antiviral platforms that can act on existing viruses and viruses yet to emerge are not available, creating a need to explore treatment strategies beyond the trodden paths. Here, we report virus-encapsulating DNA origami shells that achieve broadband virus trapping properties by exploiting avidity and a widespread background affinity of viruses to heparan sulfate proteoglycans (HSPG). With a calibrated density of heparin and heparan sulfate (HS) derivatives crafted to the interior of DNA origami shells, we could encapsulate adeno, adeno-associated, chikungunya, dengue, human papilloma, noro, polio, rubella, and SARS-CoV-2 viruses or virus-like particles, in one and the same HS-functionalized shell system. Additional virus-type-specific binders were not needed for the trapping. Depending on the relative dimensions of shell to virus particles, multiple virus particles may be trapped per shell, and multiple shells can cover the surface of clusters of virus particles. The steric occlusion provided by the heparan sulfate-coated DNA origami shells can prevent viruses from further interactions with receptors, possibly including those found on cell surfaces.
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Affiliation(s)
- Alba Monferrer
- Laboratory
for Biomolecular Nanotechnology. Department of Physics, Technical University of Munich, Am Coulombwall 4a, 85748 Garching, Germany
- Munich
Institute of Biomedical Engineering, Technical
University of Munich, Boltzmannstraße 11, 85748 Garching, Germany
| | - Jessica A. Kretzmann
- Laboratory
for Biomolecular Nanotechnology. Department of Physics, Technical University of Munich, Am Coulombwall 4a, 85748 Garching, Germany
- Munich
Institute of Biomedical Engineering, Technical
University of Munich, Boltzmannstraße 11, 85748 Garching, Germany
| | - Christian Sigl
- Laboratory
for Biomolecular Nanotechnology. Department of Physics, Technical University of Munich, Am Coulombwall 4a, 85748 Garching, Germany
- Munich
Institute of Biomedical Engineering, Technical
University of Munich, Boltzmannstraße 11, 85748 Garching, Germany
| | - Pia Sapelza
- Laboratory
for Biomolecular Nanotechnology. Department of Physics, Technical University of Munich, Am Coulombwall 4a, 85748 Garching, Germany
- Munich
Institute of Biomedical Engineering, Technical
University of Munich, Boltzmannstraße 11, 85748 Garching, Germany
| | - Anna Liedl
- Laboratory
for Biomolecular Nanotechnology. Department of Physics, Technical University of Munich, Am Coulombwall 4a, 85748 Garching, Germany
- Munich
Institute of Biomedical Engineering, Technical
University of Munich, Boltzmannstraße 11, 85748 Garching, Germany
| | - Barbara Wittmann
- Laboratory
for Biomolecular Nanotechnology. Department of Physics, Technical University of Munich, Am Coulombwall 4a, 85748 Garching, Germany
- Munich
Institute of Biomedical Engineering, Technical
University of Munich, Boltzmannstraße 11, 85748 Garching, Germany
| | - Hendrik Dietz
- Laboratory
for Biomolecular Nanotechnology. Department of Physics, Technical University of Munich, Am Coulombwall 4a, 85748 Garching, Germany
- Munich
Institute of Biomedical Engineering, Technical
University of Munich, Boltzmannstraße 11, 85748 Garching, Germany
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25
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Cao Y, Jian F, Zhang Z, Yisimayi A, Hao X, Bao L, Yuan F, Yu Y, Du S, Wang J, Xiao T, Song W, Zhang Y, Liu P, An R, Wang P, Wang Y, Yang S, Niu X, Zhang Y, Gu Q, Shao F, Hu Y, Yin W, Zheng A, Wang Y, Qin C, Jin R, Xiao J, Xie XS. Rational identification of potent and broad sarbecovirus-neutralizing antibody cocktails from SARS convalescents. Cell Rep 2022; 41:111845. [PMID: 36493787 PMCID: PMC9712074 DOI: 10.1016/j.celrep.2022.111845] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/13/2022] [Accepted: 11/23/2022] [Indexed: 12/03/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron sublineages have escaped most receptor-binding domain (RBD)-targeting therapeutic neutralizing antibodies (NAbs), which proves that previous NAb drug screening strategies are deficient against the fast-evolving SARS-CoV-2. Better broad NAb drug candidate selection methods are needed. Here, we describe a rational approach for identifying RBD-targeting broad SARS-CoV-2 NAb cocktails. Based on high-throughput epitope determination, we propose that broad NAb drugs should target non-immunodominant RBD epitopes to avoid herd-immunity-directed escape mutations. Also, their interacting antigen residues should focus on sarbecovirus conserved sites and associate with critical viral functions, making the antibody-escaping mutations less likely to appear. Following these criteria, a featured non-competing antibody cocktail, SA55+SA58, is identified from a large collection of broad sarbecovirus NAbs isolated from SARS-CoV-2-vaccinated SARS convalescents. SA55+SA58 potently neutralizes ACE2-utilizing sarbecoviruses, including circulating Omicron variants, and could serve as broad SARS-CoV-2 prophylactics to offer long-term protection, especially for individuals who are immunocompromised or with high-risk comorbidities.
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Affiliation(s)
- Yunlong Cao
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, P.R. China,Changping Laboratory, Beijing, P.R. China,Corresponding author
| | - Fanchong Jian
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, P.R. China,College of Chemistry and Molecular Engineering, Peking University, Beijing, P.R. China
| | - Zhiying Zhang
- School of Life Sciences, Peking University, Beijing, P.R. China
| | - Ayijiang Yisimayi
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, P.R. China,School of Life Sciences, Peking University, Beijing, P.R. China
| | - Xiaohua Hao
- Beijing Ditan Hospital, Capital Medical University, Beijing, P.R. China
| | - Linlin Bao
- Key Laboratory of Human Disease Comparative Medicine, Chinese Ministry of Health, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, P.R. China
| | - Fei Yuan
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, P.R. China
| | | | - Shuo Du
- School of Life Sciences, Peking University, Beijing, P.R. China
| | - Jing Wang
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, P.R. China,School of Life Sciences, Peking University, Beijing, P.R. China
| | - Tianhe Xiao
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, P.R. China,Joint Graduate Program of Peking-Tsinghua-NIBS, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, P.R. China
| | - Weiliang Song
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, P.R. China,School of Life Sciences, Peking University, Beijing, P.R. China
| | - Ying Zhang
- School of Life Sciences, Peking University, Beijing, P.R. China
| | - Pulan Liu
- School of Life Sciences, Peking University, Beijing, P.R. China
| | - Ran An
- Changping Laboratory, Beijing, P.R. China
| | - Peng Wang
- Changping Laboratory, Beijing, P.R. China
| | - Yao Wang
- Changping Laboratory, Beijing, P.R. China
| | - Sijie Yang
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, P.R. China,Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, P.R. China
| | - Xiao Niu
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, P.R. China,College of Chemistry and Molecular Engineering, Peking University, Beijing, P.R. China
| | - Yuhang Zhang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, P.R. China
| | | | - Fei Shao
- Changping Laboratory, Beijing, P.R. China
| | - Yaling Hu
- Sinovac Biotech, Ltd., Beijing, P.R. China
| | | | - Aihua Zheng
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, P.R. China
| | - Youchun Wang
- Changping Laboratory, Beijing, P.R. China,Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC), Beijing, P.R. China
| | - Chuan Qin
- Key Laboratory of Human Disease Comparative Medicine, Chinese Ministry of Health, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, P.R. China,Corresponding author
| | - Ronghua Jin
- Beijing Ditan Hospital, Capital Medical University, Beijing, P.R. China,Corresponding author
| | - Junyu Xiao
- Changping Laboratory, Beijing, P.R. China,School of Life Sciences, Peking University, Beijing, P.R. China,Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, P.R. China,Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, P.R. China,Corresponding author
| | - Xiaoliang Sunney Xie
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, P.R. China,Changping Laboratory, Beijing, P.R. China,Corresponding author
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26
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Dondalska A, Axberg Pålsson S, Spetz AL. Is There a Role for Immunoregulatory and Antiviral Oligonucleotides Acting in the Extracellular Space? A Review and Hypothesis. Int J Mol Sci 2022; 23:ijms232314593. [PMID: 36498932 PMCID: PMC9735517 DOI: 10.3390/ijms232314593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 11/24/2022] Open
Abstract
Here, we link approved and emerging nucleic acid-based therapies with the expanding universe of small non-coding RNAs (sncRNAs) and the innate immune responses that sense oligonucleotides taken up into endosomes. The Toll-like receptors (TLRs) 3, 7, 8, and 9 are located in endosomes and can detect nucleic acids taken up through endocytic routes. These receptors are key triggers in the defense against viruses and/or bacterial infections, yet they also constitute an Achilles heel towards the discrimination between self- and pathogenic nucleic acids. The compartmentalization of nucleic acids and the activity of nucleases are key components in avoiding autoimmune reactions against nucleic acids, but we still lack knowledge on the plethora of nucleic acids that might be released into the extracellular space upon infections, inflammation, and other stress responses involving increased cell death. We review recent findings that a set of single-stranded oligonucleotides (length of 25-40 nucleotides (nt)) can temporarily block ligands destined for endosomes expressing TLRs in human monocyte-derived dendritic cells. We discuss knowledge gaps and highlight the existence of a pool of RNA with an approximate length of 30-40 nt that may still have unappreciated regulatory functions in physiology and in the defense against viruses as gatekeepers of endosomal uptake through certain routes.
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27
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Fu Y, Li P, Xu W, Liu Z, Wang C, Wang Q, Tang J, Li W, Lu L, Jiang S. Chemically Modified Bovine β-Lactoglobulin as a Broad-Spectrum Influenza Virus Entry Inhibitor with the Potential to Combat Influenza Outbreaks. Viruses 2022; 14:v14092055. [PMID: 36146861 PMCID: PMC9506557 DOI: 10.3390/v14092055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/09/2022] [Accepted: 09/12/2022] [Indexed: 11/16/2022] Open
Abstract
Frequent outbreaks of the highly pathogenic influenza A virus (AIV) infection, together with the lack of broad-spectrum influenza vaccines, call for the development of broad-spectrum prophylactic agents. Previously, 3-hydroxyphthalic anhydride-modified bovine β-lactoglobulin (3HP-β-LG) was proven to be effective against human immunodeficiency virus (HIV) and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and it has also been used in the clinical control of cervical human papillomavirus (HPV) infections. Here, we show its efficacy in potently inhibiting infection by divergent influenza A and B viruses. Mechanistic studies suggest that 3HP-β-LG binds, possibly through its negatively charged residues, to the receptor-binding domain in the hemagglutinin 1 (HA1) subunit in the HA of the influenza virus, thus inhibiting the attachment of the HA to sialic acid on host cells. The intranasal administration of 3HP-β-LG led to the protection of mice against challenges by influenza A(H1N1)/PR8, A(H3N2), and A(H7N9) viruses. Furthermore, 3HP-β-LG is highly stable when stored at 50 °C for 30 days and it shows excellent safety in vitro and in vivo. Collectively, our findings suggest that 3HP-β-LG could be successfully repurposed as an intranasal prophylactic agent to prevent influenza virus infections during influenza outbreaks.
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Affiliation(s)
- Yuhong Fu
- Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Shanghai Public Health Clinical Center, Fudan University, 131 Dong An Rd., Xuhui District, Shanghai 200032, China
| | - Peiyu Li
- Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Shanghai Public Health Clinical Center, Fudan University, 131 Dong An Rd., Xuhui District, Shanghai 200032, China
- Department of Infectious Diseases and Shenzhen Key Laboratory for Endogenous Infection, Shenzhen Nanshan People’s Hospital and the Affiliated Shenzhen Sixth Hospital of Guangdong Medical University, Shenzhen 518052, China
| | - Wei Xu
- Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Shanghai Public Health Clinical Center, Fudan University, 131 Dong An Rd., Xuhui District, Shanghai 200032, China
| | - Zezhong Liu
- Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Shanghai Public Health Clinical Center, Fudan University, 131 Dong An Rd., Xuhui District, Shanghai 200032, China
| | - Cong Wang
- Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Shanghai Public Health Clinical Center, Fudan University, 131 Dong An Rd., Xuhui District, Shanghai 200032, China
| | - Qian Wang
- Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Shanghai Public Health Clinical Center, Fudan University, 131 Dong An Rd., Xuhui District, Shanghai 200032, China
| | - Jiayi Tang
- Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Shanghai Public Health Clinical Center, Fudan University, 131 Dong An Rd., Xuhui District, Shanghai 200032, China
| | - Weihua Li
- NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, 2140 Xie Tu Rd., Xuhui District, Shanghai 200032, China
| | - Lu Lu
- Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Shanghai Public Health Clinical Center, Fudan University, 131 Dong An Rd., Xuhui District, Shanghai 200032, China
- Correspondence: (L.L.); (S.J.); Tel.: +86-21-5423-7671 (L.L.); +86-21-5423-7673 (S.J.)
| | - Shibo Jiang
- Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Shanghai Public Health Clinical Center, Fudan University, 131 Dong An Rd., Xuhui District, Shanghai 200032, China
- Department of Infectious Diseases and Shenzhen Key Laboratory for Endogenous Infection, Shenzhen Nanshan People’s Hospital and the Affiliated Shenzhen Sixth Hospital of Guangdong Medical University, Shenzhen 518052, China
- NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, 2140 Xie Tu Rd., Xuhui District, Shanghai 200032, China
- Correspondence: (L.L.); (S.J.); Tel.: +86-21-5423-7671 (L.L.); +86-21-5423-7673 (S.J.)
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28
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Zhang J, Han ZB, Liang Y, Zhang XF, Jin YQ, Du LF, Shao S, Wang H, Hou JW, Xu K, Lei W, Lei ZH, Liu ZM, Zhang J, Hou YN, Liu N, Shen FJ, Wu JJ, Zheng X, Li XY, Li X, Huang WJ, Wu GZ, Su JG, Li QM. A mosaic-type trimeric RBD-based COVID-19 vaccine candidate induces potent neutralization against Omicron and other SARS-CoV-2 variants. eLife 2022; 11:e78633. [PMID: 36004719 PMCID: PMC9481243 DOI: 10.7554/elife.78633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 08/22/2022] [Indexed: 11/29/2022] Open
Abstract
Large-scale populations in the world have been vaccinated with COVID-19 vaccines, however, breakthrough infections of SARS-CoV-2 are still growing rapidly due to the emergence of immune-evasive variants, especially Omicron. It is urgent to develop effective broad-spectrum vaccines to better control the pandemic of these variants. Here, we present a mosaic-type trimeric form of spike receptor-binding domain (mos-tri-RBD) as a broad-spectrum vaccine candidate, which carries the key mutations from Omicron and other circulating variants. Tests in rats showed that the designed mos-tri-RBD, whether used alone or as a booster shot, elicited potent cross-neutralizing antibodies against not only Omicron but also other immune-evasive variants. Neutralizing antibody ID50 titers induced by mos-tri-RBD were substantially higher than those elicited by homo-tri-RBD (containing homologous RBDs from prototype strain) or the BIBP inactivated COVID-19 vaccine (BBIBP-CorV). Our study indicates that mos-tri-RBD is highly immunogenic, which may serve as a broad-spectrum vaccine candidate in combating SARS-CoV-2 variants including Omicron.
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Affiliation(s)
- Jing Zhang
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Zi Bo Han
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Yu Liang
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Xue Feng Zhang
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Yu Qin Jin
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
| | - Li Fang Du
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Shuai Shao
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Hui Wang
- Beijing Institute of Biological Products Company LimitedBeijingChina
| | - Jun Wei Hou
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Ke Xu
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC)BeijingChina
| | - Wenwen Lei
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC)BeijingChina
| | - Ze Hua Lei
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Zhao Ming Liu
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Jin Zhang
- Beijing Institute of Biological Products Company LimitedBeijingChina
| | - Ya Nan Hou
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Ning Liu
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Fu Jie Shen
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Jin Juan Wu
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Xiang Zheng
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Xin Yu Li
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Xin Li
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Wei Jin Huang
- National Institutes for Food and Drug Control (NIFDC)BeijingChina
| | - Gui Zhen Wu
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC)BeijingChina
| | - Ji Guo Su
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
| | - Qi Ming Li
- The Sixth Laboratory, National Vaccine and Serum Institute (NVSI)BeijingChina
- National Engineering Center for New Vaccine ResearchBeijingChina
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Li T, Wang J, Zhu L, Li C, Chang Q, Xu W. Advanced screening and tailoring strategies of pesticide aptamer for constructing biosensor. Crit Rev Food Sci Nutr 2022; 63:10974-10994. [PMID: 35699641 DOI: 10.1080/10408398.2022.2086210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The rapid development of aptamers has helped address the challenges presented by the wide existed pesticides contaminations. Screening of aptamers with excellent performance is a prerequisite for successfully constructing biosensors, while further tailoring of aptamers with enhanced activity greatly improved the assay performance. Firstly, this paper reviewed the advanced screening strategies for pesticides aptamers, including immobilization screening that preserves the native structures of targets, non-immobilized screening based on nanomaterials, capillary electrophoresis-systematic evolution of ligands by exponential enrichment (CE-SELEX), virtual screening in silico, high-throughput selection, and rational secondary library generation methods, which contributed significantly to improve the success rate of screening, reduce the screening time, and ensure aptamer binding affinity. Secondly, the precise tailoring strategies for pesticides aptamers were modularly elaborated, containing deletion, splitting, elongation, and fusion, which provided various advantages like cost-efficiency, enhanced binding affinity, and new derived functional motifs. Thirdly, the developed aptamer-based biosensors (aptasensors) for pesticide detection were systematically reviewed according to the different signal output modes. Finally, the challenges and future perspectives of pesticide detection are discussed comprehensively.
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Affiliation(s)
- Tianshun Li
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University,, Beijing, China
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Jia Wang
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University,, Beijing, China
| | - Longjiao Zhu
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University,, Beijing, China
| | - Chenwei Li
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University,, Beijing, China
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Qiaoying Chang
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University,, Beijing, China
| | - Wentao Xu
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University,, Beijing, China
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30
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Leong J, Shi D, Tan JPK, Yang C, Yang S, Wang Y, Ngow YS, Kng J, Balakrishnan N, Peng SQ, Yeow CS, Periaswamy B, Venkataraman S, Kwa AL, Liu X, Yao H, Yang YY. Potent Antiviral and Antimicrobial Polymers as Safe and Effective Disinfectants for the Prevention of Infections. Adv Healthc Mater 2022; 11:e2101898. [PMID: 34694749 DOI: 10.1002/adhm.202101898] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/19/2021] [Indexed: 11/06/2022]
Abstract
Disinfection using effective antimicrobials is essential in preventing the spread of infectious diseases. This COVID-19 pandemic has brought the need for effective disinfectants to greater attention due to the fast transmission of SARS-CoV-2. Current active ingredients in disinfectants are small molecules that microorganisms can develop resistance against after repeated long-term use and may penetrate the skin, causing harmful side-effects. To this end, a series of membrane-disrupting polyionenes that contain quaternary ammoniums and varying hydrophobic components is synthesized. They are effective against bacteria and fungi. They are also fast acting against clinically isolated drug resistant strains of bacteria. Formulating them with thickeners and nonionic surfactants do not affect their killing efficiency. These polyionenes are also effective in preventing infections caused by nonenveloped and enveloped viruses. Their effectiveness against mouse coronavirus (i.e., mouse hepatitis virus-MHV) depends on their hydrophobicity. The polyionenes with optimal compositions inactivates MHV completely in 30 s. More importantly, the polyionenes are effective in inhibiting SARS-CoV-2 by >99.999% within 30 s. While they are effective against the microorganisms, they do not cause damage to the skin and have a high oral lethal dose. Overall, these polyionenes are promising active ingredients for disinfection and prevention of viral and microbial infections.
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Affiliation(s)
- Jiayu Leong
- Institute of Bioengineering and Bioimaging 31 Biopolis Way, The Nanos Singapore 138669 Singapore
| | - Danrong Shi
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases First Affiliated Hospital Zhejiang University School of Medicine 79 Qingchun Road Hangzhou 310003 China
| | - Jeremy Pang Kern Tan
- Institute of Bioengineering and Bioimaging 31 Biopolis Way, The Nanos Singapore 138669 Singapore
| | - Chuan Yang
- Institute of Bioengineering and Bioimaging 31 Biopolis Way, The Nanos Singapore 138669 Singapore
| | - Shengcai Yang
- Institute of Bioengineering and Bioimaging 31 Biopolis Way, The Nanos Singapore 138669 Singapore
| | - Yanming Wang
- Institute of Bioengineering and Bioimaging 31 Biopolis Way, The Nanos Singapore 138669 Singapore
| | - Yeen Shian Ngow
- Department of Pharmacy Singapore General Hospital Outram Road Singapore 169608 Singapore
| | - Jessica Kng
- Institute of Bioengineering and Bioimaging 31 Biopolis Way, The Nanos Singapore 138669 Singapore
| | - Nithiyaa Balakrishnan
- Institute of Bioengineering and Bioimaging 31 Biopolis Way, The Nanos Singapore 138669 Singapore
| | - Shu Qin Peng
- Institute of Bioengineering and Bioimaging 31 Biopolis Way, The Nanos Singapore 138669 Singapore
| | - Chun Siang Yeow
- Institute of Bioengineering and Bioimaging 31 Biopolis Way, The Nanos Singapore 138669 Singapore
| | - Balamurugan Periaswamy
- Institute of Bioengineering and Bioimaging 31 Biopolis Way, The Nanos Singapore 138669 Singapore
| | - Shrinivas Venkataraman
- Institute of Bioengineering and Bioimaging 31 Biopolis Way, The Nanos Singapore 138669 Singapore
| | - Andrea Lay‐Hoon Kwa
- Department of Pharmacy Singapore General Hospital Outram Road Singapore 169608 Singapore
| | - Xiaoli Liu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases First Affiliated Hospital Zhejiang University School of Medicine 79 Qingchun Road Hangzhou 310003 China
| | - Hangping Yao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases First Affiliated Hospital Zhejiang University School of Medicine 79 Qingchun Road Hangzhou 310003 China
| | - Yi Yan Yang
- Institute of Bioengineering and Bioimaging 31 Biopolis Way, The Nanos Singapore 138669 Singapore
- Department of Orthopaedic Surgery Yong Loo Lin School of Medicine National University of Singapore Singapore 119288 Singapore
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Wang WF, Xie XY, Huang Y, Li YK, Liu H, Chen XL, Wang HL. Identification of a Novel Antimicrobial Peptide From the Ancient Marine Arthropod Chinese Horseshoe Crab, Tachypleus tridentatus. Front Immunol 2022; 13:794779. [PMID: 35401525 PMCID: PMC8984021 DOI: 10.3389/fimmu.2022.794779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 02/24/2022] [Indexed: 12/02/2022] Open
Abstract
Humoral immunity is the first line of defense in the invertebrate immune system, and antimicrobial peptides play an important role in this biological process. A novel antimicrobial peptide, termed Tatritin, was identified and characterized in hemolymph of Chinese horseshoe crab, Tachypleus tridentatus, infected with Gram-negative bacteria via transcriptome analysis. Tatritin was significantly induced by bacterial infection in hemolymph and gill. The preprotein of Tatritin consists of a signal peptide (21 aa) and a mature peptide (47 aa) enriched by cysteine. The putative mature peptide was 5.6 kDa with a theoretical isoelectric point (pI) of 9.99 and showed a α-helix structure in the N-terminal and an anti-parallel β-sheet structure in the cysteine-stabilized C-terminal region. The chemically synthesized peptide of Tatritin exhibited a broad spectrum of antimicrobial activity against Gram-negative and Gram-positive bacteria and fungi. Furthermore, Tatritin may recognize and inhibit pathogenic microorganisms by directly binding to LPS, DNA, and chitin. In addition, administration of Tatritin reduced the mortality of zebrafish after bacterial infection. Due to its broad-spectrum antimicrobial activity in vivo and in vitro and the sensitivity to drug-resistant bacterial strains, Tatritin peptide can be used as a new type of drug for infection treatment or as an immune enhancer in animals.
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Affiliation(s)
- Wei-Feng Wang
- Key Lab of Freshwater Animal Breeding, Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Xiao-Yong Xie
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Yan Huang
- Key Lab of Freshwater Animal Breeding, Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Yin-Kang Li
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Hong Liu
- Key Lab of Freshwater Animal Breeding, Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Xiu-Li Chen
- Guangxi Key Laboratory of Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, China
| | - Huan-Ling Wang
- Key Lab of Freshwater Animal Breeding, Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan, China
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32
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Liu Z, Zou Y, Ji C, Chen X, Hou G, Zhang C, Wan X, Guo LJ, Zhao Y, Zhang X. Broad-Spectrum Ultrathin-Metal-Based Oxide/Metal/Oxide Transparent Conductive Films for Optoelectronic Devices. ACS Appl Mater Interfaces 2021; 13:58539-58551. [PMID: 34871497 DOI: 10.1021/acsami.1c16691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
High-quality transparent conductive materials are beneficial to improve the charge transfer and light transmittance and reduce the interface defects as well as the production cost of optoelectronic devices. A high threshold thickness of metal layer in oxide/metal/oxide (OMO) compound thin films leads to strong reflectance, especially in the near-infrared region, limiting the broad-spectrum device applications. Here, we propose a novel Zn doping strategy using the low-cost single-target sputtering technology to achieve the growth of Ag-Zn thin films (i.e., Zn-doped Ag) and introduce a trace amount of O2 to further obtain ultrathin Ag-Zn(O) films (thin-film thickness d ≤ 5 nm), which greatly improves the broad-spectrum characteristics of OMO films. Heterogeneous metal and gas doping technology effectively promotes the formation of two-dimensional continuous film growth. By combining the ultrathin Ag-Zn(O) layer with the MGZO (i.e., Mg- and Ga co-doped ZnO) oxide film grown by reactive plasma deposition, a typical broad-spectrum MGZO/Ag-Zn(O)/MGZO (50/5/50 nm)-OMO compound thin film exhibits an average transmittance of 91.6% in the wavelength range of 400-1200 nm and low sheet resistance. The broad-spectrum organic solar cells based on MGZO/Ag-Zn(O)/MGZO electrodes present a high power conversion efficiency of 15.35%, superior to those devices based on single-layer oxide electrodes. The distinguished performances are attributed to the ultrathin Ag-Zn(O) films in OMO, paving the way for applications in broad-spectrum optoelectronic and flexible electronic devices.
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Affiliation(s)
- Zhang Liu
- Institute of Photo-electronic Thin Film Devices and Technology, Key Laboratory of Photo-electronic Thin Film Devices and Technology of Tianjin, College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300350, China
| | - Yalu Zou
- Key Laboratory of Functional Polymer Materials, Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Chengang Ji
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Xinliang Chen
- Institute of Photo-electronic Thin Film Devices and Technology, Key Laboratory of Photo-electronic Thin Film Devices and Technology of Tianjin, College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300350, China
| | - Guofu Hou
- Institute of Photo-electronic Thin Film Devices and Technology, Key Laboratory of Photo-electronic Thin Film Devices and Technology of Tianjin, College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300350, China
| | - Cong Zhang
- Institute of Photo-electronic Thin Film Devices and Technology, Key Laboratory of Photo-electronic Thin Film Devices and Technology of Tianjin, College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300350, China
| | - Xiangjian Wan
- Key Laboratory of Functional Polymer Materials, Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, Tianjin 300071, China
| | - L Jay Guo
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Ying Zhao
- Institute of Photo-electronic Thin Film Devices and Technology, Key Laboratory of Photo-electronic Thin Film Devices and Technology of Tianjin, College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300350, China
| | - Xiaodan Zhang
- Institute of Photo-electronic Thin Film Devices and Technology, Key Laboratory of Photo-electronic Thin Film Devices and Technology of Tianjin, College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300350, China
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Soto-Acosta R, Edwards TC, Dreis CD, Krishna VD, Cheeran MC, Qiu L, Xie J, Bonnac LF, Geraghty RJ. Enhancing the Antiviral Potency of Nucleobases for Potential Broad-Spectrum Antiviral Therapies. Viruses 2021; 13:2508. [PMID: 34960780 DOI: 10.3390/v13122508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/29/2021] [Accepted: 12/08/2021] [Indexed: 11/16/2022] Open
Abstract
Broad-spectrum antiviral therapies hold promise as a first-line defense against emerging viruses by blunting illness severity and spread until vaccines and virus-specific antivirals are developed. The nucleobase favipiravir, often discussed as a broad-spectrum inhibitor, was not effective in recent clinical trials involving patients infected with Ebola virus or SARS-CoV-2. A drawback of favipiravir use is its rapid clearance before conversion to its active nucleoside-5′-triphosphate form. In this work, we report a synergistic reduction of flavivirus (dengue, Zika), orthomyxovirus (influenza A), and coronavirus (HCoV-OC43 and SARS-CoV-2) replication when the nucleobases favipiravir or T-1105 were combined with the antimetabolite 6-methylmercaptopurine riboside (6MMPr). The 6MMPr/T-1105 combination increased the C-U and G-A mutation frequency compared to treatment with T-1105 or 6MMPr alone. A further analysis revealed that the 6MMPr/T-1105 co-treatment reduced cellular purine nucleotide triphosphate synthesis and increased conversion of the antiviral nucleobase to its nucleoside-5′-monophosphate, -diphosphate, and -triphosphate forms. The 6MMPr co-treatment specifically increased production of the active antiviral form of the nucleobases (but not corresponding nucleosides) while also reducing levels of competing cellular NTPs to produce the synergistic effect. This in-depth work establishes a foundation for development of small molecules as possible co-treatments with nucleobases like favipiravir in response to emerging RNA virus infections.
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Wang Z, Yang L. Broad-spectrum prodrugs with anti-SARS-CoV-2 activities: Strategies, benefits, and challenges. J Med Virol 2021; 94:1373-1390. [PMID: 34897729 DOI: 10.1002/jmv.27517] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/09/2021] [Accepted: 12/10/2021] [Indexed: 01/18/2023]
Abstract
In this era, broad-spectrum prodrugs with anti-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) activities are gaining considerable attention owing to their potential clinical benefits and role in combating the fast-spreading coronavirus disease 2019 (COVID-19) pandemic. The last 2 years have seen a surge of reports on various broad-spectrum prodrugs against SARS-CoV-2, and in in vitro studies, animal models, and clinical practice. Currently, only remdesivir (with many controversies and limitations) has been approved by the U.S. FDA for the treatment of SARS-CoV-2 infection, and additional potent anti-SARS-CoV-2 drugs are urgently required to enrich the defense arsenals. The world has ubiquitously grappled with the COVID-19 pandemic, and the availability of broad-spectrum prodrugs provides great hope for us to subdue this global threat. This article reviews promising treatment strategies, antiviral mechanisms, potential benefits, and daunting clinical challenges of anti-SARS-CoV-2 agents to provide some important guidance for future clinical treatment.
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Affiliation(s)
- Zhonglei Wang
- Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, P. R. China.,Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Tsinghua University, Beijing, P. R. China
| | - Liyan Yang
- Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, School of Physics and Physical Engineering, Qufu Normal University, Qufu, Shandong, P. R. China
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Xiao Y, Lidsky PV, Shirogane Y, Aviner R, Wu CT, Li W, Zheng W, Talbot D, Catching A, Doitsh G, Su W, Gekko CE, Nayak A, Ernst JD, Brodsky L, Brodsky E, Rousseau E, Capponi S, Bianco S, Nakamura R, Jackson PK, Frydman J, Andino R. A defective viral genome strategy elicits broad protective immunity against respiratory viruses. Cell 2021; 184:6037-6051.e14. [PMID: 34852237 PMCID: PMC8598942 DOI: 10.1016/j.cell.2021.11.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 11/08/2021] [Accepted: 11/12/2021] [Indexed: 12/18/2022]
Abstract
RNA viruses generate defective viral genomes (DVGs) that can interfere with replication of the parental wild-type virus. To examine their therapeutic potential, we created a DVG by deleting the capsid-coding region of poliovirus. Strikingly, intraperitoneal or intranasal administration of this genome, which we termed eTIP1, elicits an antiviral response, inhibits replication, and protects mice from several RNA viruses, including enteroviruses, influenza, and SARS-CoV-2. While eTIP1 replication following intranasal administration is limited to the nasal cavity, its antiviral action extends non-cell-autonomously to the lungs. eTIP1 broad-spectrum antiviral effects are mediated by both local and distal type I interferon responses. Importantly, while a single eTIP1 dose protects animals from SARS-CoV-2 infection, it also stimulates production of SARS-CoV-2 neutralizing antibodies that afford long-lasting protection from SARS-CoV-2 reinfection. Thus, eTIP1 is a safe and effective broad-spectrum antiviral generating short- and long-term protection against SARS-CoV-2 and other respiratory infections in animal models.
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Affiliation(s)
- Yinghong Xiao
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Peter V Lidsky
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Yuta Shirogane
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA; Department of Virology, Faculty of Medicine, Kyushu University, Fukuoka, Japan
| | - Ranen Aviner
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA; Department of Biology and Genetics, Stanford University, Stanford, CA 94305, USA
| | - Chien-Ting Wu
- Baxter Laboratory for Stem Cell Biology, Department of Microbiology & Immunology, Stanford University, Stanford, CA 94305, USA
| | - Weiyi Li
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Weihao Zheng
- Division of Experimental Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Dale Talbot
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA; Aleph Therapeutics, Inc., Stanford, CA 94305, USA
| | - Adam Catching
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Gilad Doitsh
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Weiheng Su
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA; School of Life Sciences, Jilin University, Changchun, China
| | - Colby E Gekko
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Arabinda Nayak
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA; Department of Biology and Genetics, Stanford University, Stanford, CA 94305, USA
| | - Joel D Ernst
- Division of Experimental Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Leonid Brodsky
- Tauber Bioinformatics Research Center and Department of Evolutionary & Environmental Biology, University of Haifa, Mount Carmel, Haifa 31905, Israel
| | | | - Elsa Rousseau
- Functional Genomics and Cellular Engineering, AI and Cognitive Software, IBM Almaden Research Center, San Jose, CA 95120, USA
| | - Sara Capponi
- Functional Genomics and Cellular Engineering, AI and Cognitive Software, IBM Almaden Research Center, San Jose, CA 95120, USA
| | - Simone Bianco
- Functional Genomics and Cellular Engineering, AI and Cognitive Software, IBM Almaden Research Center, San Jose, CA 95120, USA
| | | | - Peter K Jackson
- Baxter Laboratory for Stem Cell Biology, Department of Microbiology & Immunology, Stanford University, Stanford, CA 94305, USA
| | - Judith Frydman
- Department of Biology and Genetics, Stanford University, Stanford, CA 94305, USA
| | - Raul Andino
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA.
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Tian L, Chen X, Jia X, Wang S, Wang X, Zhang J, Zhang Y, Wu S, Chen Y, Wu L. First report of antifungal activity conferred by non-conventional peptides. Plant Biotechnol J 2021; 19:2147-2149. [PMID: 34455677 PMCID: PMC8541775 DOI: 10.1111/pbi.13691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 08/16/2021] [Indexed: 06/13/2023]
Affiliation(s)
- Lei Tian
- National Key Laboratory of Wheat and Maize Crop ScienceCollege of AgronomyHenan Agricultural UniversityZhengzhouChina
| | - Xueyan Chen
- National Key Laboratory of Wheat and Maize Crop ScienceCollege of AgronomyHenan Agricultural UniversityZhengzhouChina
| | - Xingmeng Jia
- National Key Laboratory of Wheat and Maize Crop ScienceCollege of AgronomyHenan Agricultural UniversityZhengzhouChina
| | - Shunxi Wang
- National Key Laboratory of Wheat and Maize Crop ScienceCollege of AgronomyHenan Agricultural UniversityZhengzhouChina
| | - Xiaoxu Wang
- National Key Laboratory of Wheat and Maize Crop ScienceCollege of AgronomyHenan Agricultural UniversityZhengzhouChina
| | - Jinghua Zhang
- National Key Laboratory of Wheat and Maize Crop ScienceCollege of AgronomyHenan Agricultural UniversityZhengzhouChina
| | - Yuqian Zhang
- National Key Laboratory of Wheat and Maize Crop ScienceCollege of AgronomyHenan Agricultural UniversityZhengzhouChina
- School of Environmental and Rural ScienceUniversity of New EnglandArmidaleNSWAustralia
| | - Shubiao Wu
- School of Environmental and Rural ScienceUniversity of New EnglandArmidaleNSWAustralia
| | - Yanhui Chen
- National Key Laboratory of Wheat and Maize Crop ScienceCollege of AgronomyHenan Agricultural UniversityZhengzhouChina
| | - Liuji Wu
- National Key Laboratory of Wheat and Maize Crop ScienceCollege of AgronomyHenan Agricultural UniversityZhengzhouChina
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Wu J, Wang H, Liu Q, Li R, Gao Y, Fang X, Zhong Y, Wang M, Wang Q, Rao Z, Gong P. Remdesivir overcomes the S861 roadblock in SARS-CoV-2 polymerase elongation complex. Cell Rep 2021; 37:109882. [PMID: 34653416 PMCID: PMC8498683 DOI: 10.1016/j.celrep.2021.109882] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 07/05/2021] [Accepted: 10/04/2021] [Indexed: 12/02/2022] Open
Abstract
Remdesivir (RDV), a nucleotide analog with broad-spectrum features, has exhibited effectiveness in COVID-19 treatment. However, the precise working mechanism of RDV when targeting the viral RNA-dependent RNA polymerase (RdRP) has not been fully elucidated. Here, we solve a 3.0-Å structure of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RdRP elongation complex (EC) and assess RDV intervention in polymerase elongation phase. Although RDV could induce an “i+3” delayed termination in meta-stable complexes, only pausing and subsequent elongation are observed in the EC. A comparative investigation using an enterovirus RdRP further confirms similar delayed intervention and demonstrates that steric hindrance of the RDV-characteristic 1′-cyano at the −4 position is responsible for the “i+3” intervention, although two representative Flaviviridae RdRPs do not exhibit similar behavior. A comparison of representative viral RdRP catalytic complex structures indicates that the product RNA backbone encounters highly conserved structural elements, highlighting the broad-spectrum intervention potential of 1′-modified nucleotide analogs in anti-RNA virus drug development.
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Affiliation(s)
- Jiqin Wu
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, No. 44 Xiao Hong Shan, Wuhan, Hubei 430071, China
| | - Haofeng Wang
- School of Life Sciences, Tianjin University, Tianjin 300072, China
| | - Qiaojie Liu
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, No. 44 Xiao Hong Shan, Wuhan, Hubei 430071, China
| | - Rui Li
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, No. 44 Xiao Hong Shan, Wuhan, Hubei 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Gao
- Laboratory of Structural Biology, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Xiang Fang
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, No. 44 Xiao Hong Shan, Wuhan, Hubei 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yao Zhong
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, No. 44 Xiao Hong Shan, Wuhan, Hubei 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Meihua Wang
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, No. 44 Xiao Hong Shan, Wuhan, Hubei 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Quan Wang
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China.
| | - Zihe Rao
- Laboratory of Structural Biology, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China; Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China; National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, CAS, Beijing 100101, China.
| | - Peng Gong
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, No. 44 Xiao Hong Shan, Wuhan, Hubei 430071, China; Drug Discovery Center for Infectious Diseases, Nankai University, Tianjin 300350, China.
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Demeke CA, Adinew GM, Abebe TB, Gelaye AT, Gemeda SG, Yimenu DK. Comparative analysis of the effectiveness of narrow-spectrum versus broad-spectrum antibiotics for the treatment of childhood pneumonia. SAGE Open Med 2021; 9:20503121211044379. [PMID: 34527245 PMCID: PMC8436284 DOI: 10.1177/20503121211044379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 08/18/2021] [Indexed: 11/20/2022] Open
Abstract
Objectives: The main objective of this study was to compare the effectiveness of empiric treatment with narrow-spectrum therapy versus broad-spectrum therapy for children hospitalized with community-acquired pneumonia (CAP) at the University of Gondar Referral Hospital, Gondar, Ethiopia. Methods: Institutional-based retrospective chart review was conducted at the University of Gondar Referral Hospital (GURH) pediatrics ward from 1 February 2016 to 30 April 2016. The collected data were entered and analyzed using Statistical Package for Social Sciences (SPSS) version 20. Descriptive statistics were done to present the basic features and summary of the data set. In addition, binary logistics and multivariable logistic regression analysis were conducted to test for an association between the dependent and independent variables. A P value of <0.05 was taken to declare statistical significance at a 95% confidence interval. Result: A total of 147 patients with CAP were included in the study. Seven different treatment regimens were employed for the 147 children hospitalized. About 63 (42.9%) of the study participants received a narrow-spectrum antibiotic and 84 (57.1%) received a broad-spectrum antibiotic. There was no significant difference between the broad and narrow spectrum treatment groups in main treatment outcomes. The median length of stay (LOS) for the study population was 3 days. The median LOS was shorter among those receiving narrow-spectrum therapy compared with those receiving broad-spectrum therapy. Treatment dose and duration of therapy were significantly associated with treatment outcome (P < 0.0001 and P = 0.003), respectively. Conclusion: The effectiveness of narrow-spectrum therapy is similar to that of broad-spectrum therapy for children hospitalized with CAP. Treatment regimens for children with community-acquired pneumonia should be selected based on their safety profile and their tendency for antibiotic resistance.
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Affiliation(s)
- Chilot Abiyu Demeke
- Department of Pharmaceutics and Social Pharmacy, School of Pharmacy, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Getnet Mequanent Adinew
- College of Pharmacy and Pharmaceutical Sciences, Florida Agricultural and Mechanical University (FAMU), Tallahassee, FL, USA
| | - Tamrat Befekadu Abebe
- Division of Cardiology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Abebech Tewabe Gelaye
- Department of Clinical Pharmacy, School of Pharmacy, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Sisay G/Hana Gemeda
- Department of Clinical Pharmacy, School of Pharmacy, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Dawit Kumilachew Yimenu
- Department of Pharmaceutics and Social Pharmacy, School of Pharmacy, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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Tang G, Yang S, Hu W, Jiang J, Yan H, Feng J, Zhang C, Wang Y. Bioassay-Guided Isolation of Broad-Spectrum Fungicidal Active Compound from Artemisia ordosica. Metabolites 2021; 11:629. [PMID: 34564445 DOI: 10.3390/metabo11090629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/14/2021] [Accepted: 09/14/2021] [Indexed: 12/04/2022] Open
Abstract
To avoid the widespread resistance of commercial fungicides, new broad-spectrum botanical fungicides need to be developed. In previous bioactive screening assays, extracts of Artemisia ordosica Krasch. (A. ordosica) had highly antifungal activities, but the responsible phytochemicals were unidentified. In this study, active compounds of A. ordosica extracts were identified using a bioassay-guided method, and antifungal assays were performed in vitro and in vivo. The bioactive compounds were dissolved in petroleum ether, and the best antifungal fraction contained four compounds: trans-dehydromatricaria ester (TDDE), 7, 4-demetylnringenin, capillarin, and stearic acid. Among them, TDDE exhibited the highest antifungal activity against six pathogenic fungi and five bacteria. It exhibited significant fungicidal activity against Thanatephorus cucumeris and Botrytis cinerea with EC50 values of 0.464 μg/mL and 1.4 μg/mL, respectively. The living tissue bioassay results showed that the relative protection effects (RPE) of TDDE on tomato leaves, tomato fruit, and strawberry leaves infected with B. cinerea reached 76.78%, 86.2%, and 80.89%, respectively. In pot experiments, the RPE on tomato and strawberry plants infected with B. cinerea reached 84.11% and 96.37%, respectively. Morphological and physiological examination showed that TDDE had significant inhibitory effects on mycelial growth, including increased top offshoot, contorted hyphal tips, and extravasated cytochylema. Meanwhile, bactericidal activities of TDDE were significantly higher than kanamycin and streptomycin in five bacteria, and the plant tissue experiments further demonstrated that it had an 88.31% RPE on walnut leaves infected with Xanthomonas campestris pv. jugiandis, 72.18% RPE on potato infected with Erwinia carotovora subsp. carotovora, and 82.50% RPE on kiwifruit branches infected with Pseudomonas syringae pv. actinidiae. The active compounds isolated from A. ordosica in this study show great potential value for developing broad-spectrum fungicides, and also provide an important way to identify and isolate new bioactive products from medicinal plants.
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Gavara R, de Llanos R, Pérez-Laguna V, Arnau Del Valle C, Miravet JF, Rezusta A, Galindo F. Broad-Spectrum Photo-Antimicrobial Polymers Based on Cationic Polystyrene and Rose Bengal. Front Med (Lausanne) 2021; 8:641646. [PMID: 34109191 PMCID: PMC8180575 DOI: 10.3389/fmed.2021.641646] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 03/24/2021] [Indexed: 12/16/2022] Open
Abstract
New strategies to fight bacteria and fungi are necessary in view of the problem of iatrogenic and nosocomial infections combined with the growing threat of increased antimicrobial resistance. Recently, our group has prepared and described two new readily available materials based on the combination of Rose Bengal (singlet oxygen photosensitizer) and commercially available cationic polystyrene (macroporous resin Amberlite® IRA 900 or gel-type resin IRA 400). These materials showed high efficacy in the antimicrobial photodynamic inactivation (aPDI) of Pseudomonas aeruginosa. Here, we present the photobactericidal effect of these polymers against an extended group of pathogens like Escherichia coli, Enterococcus faecalis, Staphylococcus aureus, and the opportunistic yeast Candida albicans using green light. The most interesting finding is that the studied materials are able to reduce the population of both Gram-positive and Gram-negative bacteria with good activity, although, for C. albicans, in a moderate manner. In view of the results achieved and especially considering the inexpensiveness of these two types of photoactive polymers, we believe that they could be used as the starting point for the development of coatings for self-disinfecting surfaces.
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Affiliation(s)
- Raquel Gavara
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Castellón, Spain
| | - Rosa de Llanos
- Unidad Predepartamental de Medicina, Universitat Jaume I, Castellón, Spain
| | - Vanesa Pérez-Laguna
- Instituto de Investigación Sanitaria Aragón, Departamento de Microbiología, Hospital Universitario Miguel Servet, Zaragoza, Spain
| | - Carla Arnau Del Valle
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Castellón, Spain
| | - Juan F Miravet
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Castellón, Spain
| | - Antonio Rezusta
- Instituto de Investigación Sanitaria Aragón, Departamento de Microbiología, Hospital Universitario Miguel Servet, Zaragoza, Spain.,Universidad de Zaragoza, Zaragoza, Spain
| | - Francisco Galindo
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Castellón, Spain
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Iqbal N, Agrawal A, Verma A, Kumar J. Encapsulation of water soluble pesticides for extended delivery of pesticides without contaminating water bodies. J Environ Sci Health B 2021; 56:458-466. [PMID: 33999755 DOI: 10.1080/03601234.2021.1908798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The main objective of this study is to develop polymeric encapsulated formulation for the water soluble broad-spectrum pesticides. Pesticides contaminate the environment in different ways but foremost hazards are linked with the contamination of water bodies. Water soluble pesticides are the major deleterious agents and go off into ground water and different water bodies through leaching or surface runoff from the applied places. Besides this some of the water soluble pesticides are broad-spectrum, but proper methods and techniques are not available for their effective and safe usage, all broad-spectrum pesticide are disappearing from the pesticide lists every year. Hence, the present study is based on development of encapsulated formulation for water soluble broad-spectrum pesticide i.e. Monocrotophos. In this study, water soluble pesticide was encapsulated in polyvinyl alcohol (PVA) polymer along with surfactants and cross linker. The developed microspheres were analyzed in HPLC for calculating loading capacity and encapsulation efficacy, these were calculated 0.75 and 90% respectively. The FT-IR data results confirmed that the monocrotophos successfully encapsulated in the PVA polymer with respective bands. The degradation studies show that in encapsulated formulation monocrotophos degradation was found only 10% after 94 hrs. Optical micrographs in aqeous solution indicate spherical shapes with size in the rage of 7-8 µm of encapsulated formulation. XRD data further crystalline nature of polymeric encapsulated formulation. The study may provide a new corridor to save the broad-spectrum water soluble pesticides which are on the verge to be banned.
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Affiliation(s)
- Nusrat Iqbal
- Institute of Pesticide Formulation Technology (IPFT), Gurugram, India
| | - Amrish Agrawal
- Institute of Pesticide Formulation Technology (IPFT), Gurugram, India
| | - Anil Verma
- Institute of Pesticide Formulation Technology (IPFT), Gurugram, India
| | - Jitendra Kumar
- Institute of Pesticide Formulation Technology (IPFT), Gurugram, India
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Walsh LJ, Ford PJ, McGuire T, van Driel M, Hollingworth SA. Trends in Australian dental prescribing of antibiotics: 2005-2016. Aust Dent J 2021; 66 Suppl 1:S37-S41. [PMID: 33893647 DOI: 10.1111/adj.12846] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Prescribing of antibiotics by dentists for surgical prophylaxis or as an adjunct to managing dental infections is a substantial part of the overall landscape for prescribed antibiotics in health care settings. METHODS We explored trends in the antibiotic prescribing patterns of Australian dentists over the 12-year period, 2005-2016. We obtained data on dispensed prescriptions of antibiotics from registered dentists subsidized on the Pharmaceutical Benefits Scheme. RESULTS Australian dentists were responsible for almost 7 million dispensed prescriptions of antibiotics over 12 years; an average of 24 prescriptions per year per dentist. The most commonly prescribed antibiotic was amoxicillin, followed by amoxicillin + clavulanic acid and metronidazole. These top three antibiotics constituted more than 80% of all antibiotics prescribed and their use increased dramatically over time. There was a large increase in the prescribing of broad-spectrum antibiotics over time, most of which occurred from 2011 to 2016. CONCLUSIONS Excessive prescribing of broad-spectrum antibiotics runs contrary to national antimicrobial stewardship (AMS) initiatives and guidelines. Multifaceted educational strategies are essential to align prescribing with current best practice. High-level evidence to inform clear guidelines on antibiotic prescribing in dental infections, with audit and feedback, should reduce the inappropriate use of antibiotics in dentistry.
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Affiliation(s)
- L J Walsh
- School of Dentistry, The University of Queensland, Brisbane, Qld, Australia
| | - P J Ford
- School of Dentistry, The University of Queensland, Brisbane, Qld, Australia
| | - T McGuire
- School of Pharmacy, The University of Queensland, Brisbane, Qld, Australia.,Faculty of Health Sciences and Medicine, Bond University, Gold Coast, Qld, Australia.,Mater Pharmacy, Mater Health, South East Queensland, Brisbane, Qld, Australia
| | - M van Driel
- Primary Care Clinical Unit, Faculty of Medicine, The University of Queensland, Brisbane, Qld, Australia
| | - S A Hollingworth
- School of Pharmacy, The University of Queensland, Brisbane, Qld, Australia
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Le HT, Do PC, Le L. Grafting Methionine on 1F1 Ab Increases the Broad-Activity on HA Structural-Conserved Residues of H1, H2, and H3 Influenza a Viruses. Evol Bioinform Online 2021; 17:11769343211003082. [PMID: 33795930 PMCID: PMC7975486 DOI: 10.1177/11769343211003082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 02/24/2021] [Indexed: 11/27/2022] Open
Abstract
A high level of mutation enables the influenza A virus to resist antibiotics
previously effective against the influenza A virus. A portion of the structure
of hemagglutinin HA is assumed to be well-conserved to maintain its role in
cellular fusion, and the structure tends to be more conserved than sequence. We
designed peptide inhibitors to target the conserved residues on the HA surface,
which were identified based on structural alignment. Most of the conserved and
strongly similar residues are located in the receptor-binding and esterase
regions on the HA1 domain In a later step, fragments of anti-HA antibodies were
gathered and screened for the binding ability to the found conserved residues.
As a result, Methionine amino acid got the best docking score within the −2.8 Å
radius of Van der Waals when it is interacting with Tyrosine, Arginine, and
Glutamic acid. Then, the binding affinity and spectrum of the fragments were
enhanced by grafting hotspot amino acid into the fragments to form peptide
inhibitors. Our peptide inhibitor was able to form in silico contact with a
structurally conserved region across H1, H2, and H3 HA, with the binding site at
the boundary between HA1 and HA2 domains, spreading across different monomers,
suggesting a new target for designing broad-spectrum antibody and vaccine. This
research presents an affordable method to design broad-spectrum peptide
inhibitors using fragments of an antibody as a scaffold.
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Affiliation(s)
- Hoa Thanh Le
- School of Biotechnology, International University, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Phuc-Chau Do
- School of Biotechnology, International University, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam
| | - Ly Le
- School of Biotechnology, International University, Ho Chi Minh City, Vietnam.,Vietnam National University, Ho Chi Minh City, Vietnam.,Vingroup Big Data Institute, Hanoi, Vietnam
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Cao M, Su X, Jiang S. Broad-Spectrum Anti-coronavirus Vaccines and Therapeutics to Combat the Current COVID-19 Pandemic and Future Coronavirus Disease Outbreaks. Stem Cell Reports 2021; 16:398-411. [PMID: 33691145 PMCID: PMC7940144 DOI: 10.1016/j.stemcr.2020.12.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/18/2020] [Accepted: 12/18/2020] [Indexed: 12/14/2022] Open
Abstract
While the COVID-19 pandemic caused by SARS-CoV-2 is continuing, it may become worse in the coming winter months with a high potential for the emergence and spread of escape variants of SARS-CoV-2. SARS-related CoVs (SARSr-CoVs) from bats may also cause outbreaks of emerging coronavirus diseases in the future. These predictions call for the development of broad-spectrum anti-coronavirus vaccines and therapeutics to combat the current COVID-19 pandemic and future emerging coronavirus disease epidemics. In this review, we describe advances and challenges in the development of broad-spectrum vaccines and neutralizing antibodies against lineage B betacoronaviruses (β-CoV-Bs), including SARS-CoV-2, SARS-CoV, and SARSr-CoVs, as well as peptide-based pan-CoV fusion inhibitors and their potential in the prevention and treatment of COVID-19 and other human coronavirus infections.
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Affiliation(s)
- Miao Cao
- Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Xiaojie Su
- Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Shibo Jiang
- Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China.
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45
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Al-Beltagi S, Preda CA, Goulding LV, James J, Pu J, Skinner P, Jiang Z, Wang BL, Yang J, Banyard AC, Mellits KH, Gershkovich P, Hayes CJ, Nguyen-Van-Tam J, Brown IH, Liu J, Chang KC. Thapsigargin Is a Broad-Spectrum Inhibitor of Major Human Respiratory Viruses: Coronavirus, Respiratory Syncytial Virus and Influenza A Virus. Viruses 2021; 13:234. [PMID: 33546185 PMCID: PMC7913267 DOI: 10.3390/v13020234] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 01/23/2021] [Accepted: 01/26/2021] [Indexed: 02/08/2023] Open
Abstract
The long-term control strategy of SARS-CoV-2 and other major respiratory viruses needs to include antivirals to treat acute infections, in addition to the judicious use of effective vaccines. Whilst COVID-19 vaccines are being rolled out for mass vaccination, the modest number of antivirals in use or development for any disease bears testament to the challenges of antiviral development. We recently showed that non-cytotoxic levels of thapsigargin (TG), an inhibitor of the sarcoplasmic/endoplasmic reticulum (ER) Ca2+ ATPase pump, induces a potent host innate immune antiviral response that blocks influenza A virus replication. Here we show that TG is also highly effective in blocking the replication of respiratory syncytial virus (RSV), common cold coronavirus OC43, SARS-CoV-2 and influenza A virus in immortalized or primary human cells. TG's antiviral performance was significantly better than remdesivir and ribavirin in their respective inhibition of OC43 and RSV. Notably, TG was just as inhibitory to coronaviruses (OC43 and SARS-CoV-2) and influenza viruses (USSR H1N1 and pdm 2009 H1N1) in separate infections as in co-infections. Post-infection oral gavage of acid-stable TG protected mice against a lethal influenza virus challenge. Together with its ability to inhibit the different viruses before or during active infection, and with an antiviral duration of at least 48 h post-TG exposure, we propose that TG (or its derivatives) is a promising broad-spectrum inhibitor against SARS-CoV-2, OC43, RSV and influenza virus.
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Affiliation(s)
- Sarah Al-Beltagi
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, Nottingham LE12 5RD, UK; (S.A.-B.); (C.A.P.); (B.L.W.); (J.Y.)
| | - Cristian Alexandru Preda
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, Nottingham LE12 5RD, UK; (S.A.-B.); (C.A.P.); (B.L.W.); (J.Y.)
| | - Leah V. Goulding
- The Pirbright Institute, Ash Road, Pirbright, Woking GU24 0NF, UK;
| | - Joe James
- Animal and Plant Health Agency (APHA), Weybridge, Woodham Lane, Addlestone KT15 3NB, UK; (J.J.); (P.S.); (A.C.B.); (I.H.B.)
| | - Juan Pu
- Key Laboratory of Animal Epidemiology, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, 2 Yuanmingyuan West Road, Beijing 100193, China; (J.P.); (Z.J.); (J.L.)
| | - Paul Skinner
- Animal and Plant Health Agency (APHA), Weybridge, Woodham Lane, Addlestone KT15 3NB, UK; (J.J.); (P.S.); (A.C.B.); (I.H.B.)
| | - Zhimin Jiang
- Key Laboratory of Animal Epidemiology, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, 2 Yuanmingyuan West Road, Beijing 100193, China; (J.P.); (Z.J.); (J.L.)
| | - Belinda Lei Wang
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, Nottingham LE12 5RD, UK; (S.A.-B.); (C.A.P.); (B.L.W.); (J.Y.)
| | - Jiayun Yang
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, Nottingham LE12 5RD, UK; (S.A.-B.); (C.A.P.); (B.L.W.); (J.Y.)
| | - Ashley C. Banyard
- Animal and Plant Health Agency (APHA), Weybridge, Woodham Lane, Addlestone KT15 3NB, UK; (J.J.); (P.S.); (A.C.B.); (I.H.B.)
| | - Kenneth H. Mellits
- School of Biosciences, University of Nottingham, Sutton Bonington, Nottingham LE12 5RD, UK;
| | - Pavel Gershkovich
- School of Pharmacy, University of Nottingham, University Park, Nottingham NG7 2RD, UK;
| | - Christopher J. Hayes
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK;
| | | | - Ian H. Brown
- Animal and Plant Health Agency (APHA), Weybridge, Woodham Lane, Addlestone KT15 3NB, UK; (J.J.); (P.S.); (A.C.B.); (I.H.B.)
| | - Jinhua Liu
- Key Laboratory of Animal Epidemiology, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, 2 Yuanmingyuan West Road, Beijing 100193, China; (J.P.); (Z.J.); (J.L.)
| | - Kin-Chow Chang
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, Nottingham LE12 5RD, UK; (S.A.-B.); (C.A.P.); (B.L.W.); (J.Y.)
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Gu C, Cao X, Wang Z, Hu X, Yao Y, Zhou Y, Liu P, Liu X, Gao G, Hu X, Zhang Y, Chen Z, Gao L, Peng Y, Jia F, Shan C, Yu L, Liu K, Li N, Guo W, Jiang G, Min J, Zhang J, Yang L, Shi M, Hou T, Li Y, Liang W, Lu G, Yang C, Wang Y, Xia K, Xiao Z, Xue J, Huang X, Chen X, Ma H, Song D, Pan Z, Wang X, Guo H, Liang H, Yuan Z, Guan W, Deng SJ. A human antibody of potent efficacy against SARS-CoV-2 in rhesus macaques showed strong blocking activity to B.1.351. MAbs 2021; 13:1930636. [PMID: 34097570 PMCID: PMC8189090 DOI: 10.1080/19420862.2021.1930636] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/09/2021] [Accepted: 05/12/2021] [Indexed: 12/25/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), which causes coronavirus disease-2019 (COVID-19), interacts with the host cell receptor angiotensin-converting enzyme 2 (hACE2) via its spike 1 protein during infection. After the virus sequence was published, we identified two potent antibodies against the SARS-CoV-2 receptor binding domain (RBD) from antibody libraries using a phage-to-yeast (PtY) display platform in only 10 days. Our lead antibody JMB2002, now in a Phase 1 clinical trial (ChiCTR2100042150), showed broad-spectrum in vitro blocking activity against hACE2 binding to the RBD of multiple SARS-CoV-2 variants, including B.1.351 that was reportedly much more resistant to neutralization by convalescent plasma, vaccine sera and some clinical-stage neutralizing antibodies. Furthermore, JMB2002 has demonstrated complete prophylactic and potent therapeutic efficacy in a rhesus macaque disease model. Prophylactic and therapeutic countermeasure intervention of SARS-CoV-2 using JMB2002 would likely slow down the transmission of currently emerged SARS-CoV-2 variants and result in more efficient control of the COVID-19 pandemic.
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Affiliation(s)
- Chunyin Gu
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Xiaodan Cao
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Zongda Wang
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Xue Hu
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, People’s Republic of China
| | - Yanfeng Yao
- Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, People’s Republic of China
| | - Yiwu Zhou
- Department of Forensic Medicine, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei, People’s Republic of China
| | - Peipei Liu
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Xiaowu Liu
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Ge Gao
- Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, People’s Republic of China
| | - Xiao Hu
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, People’s Republic of China
| | - Yecheng Zhang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, People’s Republic of China
| | - Zhen Chen
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, People’s Republic of China
| | - Li Gao
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Yun Peng
- Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, People’s Republic of China
| | - Fangfang Jia
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Chao Shan
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, People’s Republic of China
| | - Li Yu
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Kunpeng Liu
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, People’s Republic of China
| | - Nan Li
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Weiwei Guo
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, People’s Republic of China
| | - Guoping Jiang
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Juan Min
- Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, People’s Republic of China
| | - Jianjian Zhang
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Lu Yang
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Meng Shi
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Tianquan Hou
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Yanan Li
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Weichen Liang
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Guoqiao Lu
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Congyi Yang
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Yuting Wang
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Kaiwen Xia
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Zheng Xiao
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Jianhua Xue
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Xueyi Huang
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Xin Chen
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Haixia Ma
- Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, People’s Republic of China
| | - Donglin Song
- Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, People’s Republic of China
| | - Zhongzong Pan
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Xueping Wang
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Haibing Guo
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Hong Liang
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
| | - Zhiming Yuan
- Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, People’s Republic of China
| | - Wuxiang Guan
- Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, People’s Republic of China
| | - Su-Jun Deng
- Shanghai Jemincare Pharmaceuticals Co., Ltd., Shanghai, People’s Republic of China
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47
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Abstract
Curcumin, the primary curcuminoid compound found in turmeric spice, has shown broad activity as an antimicrobial agent, limiting the replication of many different fungi, bacteria and viruses. In this review, we summarize recent studies supporting the development of curcumin and its derivatives as broad-spectrum antiviral agents.
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Affiliation(s)
- Morgan R. Jennings
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON K1H 8L6, Canada;
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Robin J. Parks
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON K1H 8L6, Canada;
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1N 6N5, Canada
- Centre for Neuromuscular Disease, University of Ottawa, Ottawa, ON K1N 6N5, Canada
- Department of Medicine, The Ottawa Hospital, Ottawa, ON K1H 8L6, Canada
- Correspondence: ; Tel.: +1-613-737-8123
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48
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Abstract
The Strategic Plan for Biodefense Research by the U.S. Department of Health and Human Services demarcates the need for drugs which target multiple types of pathogens to prepare for infectious threats. Azithromycin is one such broad-spectrum therapeutic that is both included in the University of Oxford's RECOVERY and excluded from the World Health Organization's SOLIDARITY trials. Here we review azithromycin's broad antibiotic, antimalarial, antiviral pharmacology and contextualise it against a broader history as the most disease-repositioned therapeutic of the macrolide class; we further evaluate azithromycin's clinical and socio-economic propriety for respiratory pandemics and delineate a model for its combinatorial mechanism of action against COVID-19 pneumonia.
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Affiliation(s)
- Donna Kruger
- New Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
| | - Praveen Prathapan
- New Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
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49
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Kancharla P, Dodean RA, Li Y, Pou S, Pybus B, Melendez V, Read L, Bane CE, Vesely B, Kreishman-Deitrick M, Black C, Li Q, Sciotti RJ, Olmeda R, Luong TL, Gaona H, Potter B, Sousa J, Marcsisin S, Caridha D, Xie L, Vuong C, Zeng Q, Zhang J, Zhang P, Lin H, Butler K, Roncal N, Gaynor-Ohnstad L, Leed SE, Nolan C, Ceja FG, Rasmussen SA, Tumwebaze PK, Rosenthal PJ, Mu J, Bayles BR, Cooper RA, Reynolds KA, Smilkstein MJ, Riscoe MK, Kelly JX. Lead Optimization of Second-Generation Acridones as Broad-Spectrum Antimalarials. J Med Chem 2020; 63:6179-6202. [PMID: 32390431 PMCID: PMC7354843 DOI: 10.1021/acs.jmedchem.0c00539] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The global impact of malaria remains staggering despite extensive efforts to eradicate the disease. With increasing drug resistance and the absence of a clinically available vaccine, there is an urgent need for novel, affordable, and safe drugs for prevention and treatment of malaria. Previously, we described a novel antimalarial acridone chemotype that is potent against both blood-stage and liver-stage malaria parasites. Here, we describe an optimization process that has produced a second-generation acridone series with significant improvements in efficacy, metabolic stability, pharmacokinetics, and safety profiles. These findings highlight the therapeutic potential of dual-stage targeting acridones as novel drug candidates for further preclinical development.
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Affiliation(s)
- Papireddy Kancharla
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - Rozalia A. Dodean
- Department of Veterans Affairs Medical Center, Portland, Oregon 97239, United States
| | - Yuexin Li
- Department of Veterans Affairs Medical Center, Portland, Oregon 97239, United States
| | - Sovitj Pou
- Department of Veterans Affairs Medical Center, Portland, Oregon 97239, United States
| | - Brandon Pybus
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Victor Melendez
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Lisa Read
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Charles E. Bane
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Brian Vesely
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Mara Kreishman-Deitrick
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Chad Black
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Qigui Li
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Richard J. Sciotti
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Raul Olmeda
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Thu-Lan Luong
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Heather Gaona
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Brittney Potter
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Jason Sousa
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Sean Marcsisin
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Diana Caridha
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Lisa Xie
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Chau Vuong
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Qiang Zeng
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Jing Zhang
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Ping Zhang
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Hsiuling Lin
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Kirk Butler
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Norma Roncal
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Lacy Gaynor-Ohnstad
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Susan E. Leed
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Christina Nolan
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, United States
| | - Frida G. Ceja
- Department of Natural Sciences and Mathematics, Dominican University of California, San Rafael, CA 94901, United States
| | - Stephanie A. Rasmussen
- Department of Natural Sciences and Mathematics, Dominican University of California, San Rafael, CA 94901, United States
| | | | - Philip J. Rosenthal
- Department of Medicine, University of California, San Francisco, CA 94143, United States
| | - Jianbing Mu
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville MD 20852, USA
| | - Brett R. Bayles
- Department of Natural Sciences and Mathematics, Dominican University of California, San Rafael, CA 94901, United States
- Global Public Health Program, Dominican University of California, San Rafael CA 94901
| | - Roland A. Cooper
- Department of Natural Sciences and Mathematics, Dominican University of California, San Rafael, CA 94901, United States
| | - Kevin A. Reynolds
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - Martin J. Smilkstein
- Department of Veterans Affairs Medical Center, Portland, Oregon 97239, United States
| | - Michael K. Riscoe
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
- Department of Veterans Affairs Medical Center, Portland, Oregon 97239, United States
| | - Jane X. Kelly
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
- Department of Veterans Affairs Medical Center, Portland, Oregon 97239, United States
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50
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Robinson LJ, Verrett JN, Sorout N, Stavrinides J. A broad-spectrum antibacterial natural product from the cystic fibrosis isolate, Pantoea agglomerans Tx10. Microbiol Res 2020; 237:126479. [PMID: 32416447 DOI: 10.1016/j.micres.2020.126479] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 02/23/2020] [Accepted: 03/30/2020] [Indexed: 02/01/2023]
Abstract
The prevalence of antibiotic-resistant Gram-positive and Gram-negative pathogens has prompted considerable efforts to identify new antibacterials. Here we show that Pantoea agglomerans Tx10-an isolate from the sputum sample of a cystic fibrosis patient-is a strong competitor that inhibits the growth of a wide range of Gram-positive and Gram-negative bacteria through the production of a secreted compound. A genetic screen to identify the genes involved in the production of this compound resulted in the delineation of a 6-gene biosynthetic cluster. We called this compound Pantoea Natural Product 2 (PNP-2). Assays with mutants deficient in PNP-2 production revealed they were still able to inhibit Erwinia amylovora, suggesting the production of a second antibiotic, which we identified as Pantocin A. We generated Pantocin A knockouts, and a PNP-2/Pantocin A double knockout and used these to evaluate the spectrum of activity of both natural products. We show that strains of Enterobacter, E. coli, Klebsiella, Kosakonia, Pseudocitrobacter, Salmonella, Staphylococcus, and Streptococcus as well as the majority of Pantoea strains assayed are susceptible to PNP-2, indicating a broad spectrum of activity, and potential for therapeutic development.
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Affiliation(s)
- Lucas J Robinson
- Department of Biology, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, S4S0A2, Canada; Pasteur Institute, Paris, France
| | - Jennifer N Verrett
- Department of Biology, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, S4S0A2, Canada
| | - Naveen Sorout
- Department of Biology, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, S4S0A2, Canada
| | - John Stavrinides
- Department of Biology, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, S4S0A2, Canada.
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