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Morán-Serradilla C, Plano D, Sanmartín C, Sharma AK. Selenization of Small Molecule Drugs: A New Player on the Board. J Med Chem 2024; 67:7759-7787. [PMID: 38716896 DOI: 10.1021/acs.jmedchem.3c02426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2024]
Abstract
There is an urgent need to develop safer and more effective modalities for the treatment of a wide range of pathologies due to the increasing rates of drug resistance, undesired side effects, poor clinical outcomes, etc. Throughout the years, selenium (Se) has attracted a great deal of attention due to its important role in human health. Besides, a growing body of work has unveiled that the inclusion of Se motifs into a great number of molecules is a promising strategy for obtaining novel therapeutic agents. In the current Perspective, we have gathered the most recent literature related to the incorporation of different Se moieties into the scaffolds of a wide range of known drugs and their feasible pharmaceutical applications. In addition, we highlight different representative examples as well as provide our perspective on Se drugs and the possible future directions, promises, opportunities, and challenges of this ground-breaking area of research.
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Affiliation(s)
| | - Daniel Plano
- Department of Pharmaceutical Sciences, University of Navarra, Irunlarrea 1, Pamplona E-31008, Spain
| | - Carmen Sanmartín
- Department of Pharmaceutical Sciences, University of Navarra, Irunlarrea 1, Pamplona E-31008, Spain
| | - Arun K Sharma
- Department of Pharmacology, Penn State College of Medicine, 500 University Drive, Hershey, Pennsylvania 17033, United States
- Penn State Cancer Institute, 400 University Drive,Hershey, Pennsylvania 17033, United States
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2
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Lindman M, Estevez I, Marmut E, DaPrano EM, Chou TW, Newman K, Atkins C, O’Brown NM, Daniels BP. Astrocytic RIPK3 exerts protective anti-inflammatory activity during viral encephalitis via induction of serpin protease inhibitors. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.21.595181. [PMID: 38826345 PMCID: PMC11142122 DOI: 10.1101/2024.05.21.595181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Flaviviruses pose a significant threat to public health due to their ability to infect the central nervous system (CNS) and cause severe neurologic disease. Astrocytes play a crucial role in the pathogenesis of flavivirus encephalitis through their maintenance of blood-brain barrier (BBB) integrity and their modulation of immune cell recruitment and activation within the CNS. We have previously shown that receptor interacting protein kinase-3 (RIPK3) is a central coordinator of neuroinflammation during CNS viral infection, a function that occurs independently of its canonical function in inducing necroptotic cell death. To date, however, roles for necroptosis-independent RIPK3 signaling in astrocytes are poorly understood. Here, we use mouse genetic tools to induce astrocyte-specific deletion, overexpression, and chemogenetic activation of RIPK3 to demonstrate an unexpected anti-inflammatory function for astrocytic RIPK3. RIPK3 activation in astrocytes was required for host survival in multiple models of flavivirus encephalitis, where it restricted neuropathogenesis by limiting immune cell recruitment to the CNS. Transcriptomic analysis revealed that, despite inducing a traditional pro-inflammatory transcriptional program, astrocytic RIPK3 paradoxically promoted neuroprotection through the upregulation of serpins, endogenous protease inhibitors with broad immunomodulatory activity. Notably, intracerebroventricular administration of SerpinA3N in infected mice preserved BBB integrity, reduced leukocyte infiltration, and improved survival outcomes in mice lacking astrocytic RIPK3. These findings highlight a previously unappreciated role for astrocytic RIPK3 in suppressing pathologic neuroinflammation and suggests new therapeutic targets for the treatment of flavivirus encephalitis.
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Affiliation(s)
- Marissa Lindman
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Irving Estevez
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Eduard Marmut
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Evan M. DaPrano
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Tsui-Wen Chou
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Kimberly Newman
- Brain Health Institute, Rutgers University, Piscataway, NJ 08854, USA
| | - Colm Atkins
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Natasha M. O’Brown
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Brian P. Daniels
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
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Estevez I, Buckley BD, Panzera N, Lindman M, Chou TW, McCourt M, Vaglio BJ, Atkins C, Firestein BL, Daniels BP. RIPK3 promotes neuronal survival by suppressing excitatory neurotransmission during CNS viral infection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.26.591333. [PMID: 38712188 PMCID: PMC11071512 DOI: 10.1101/2024.04.26.591333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
While recent work has identified roles for immune mediators in the regulation of neural activity, the capacity for cell intrinsic innate immune signaling within neurons to influence neurotransmission remains poorly understood. However, the existing evidence linking immune signaling with neuronal function suggests that modulation of neurotransmission may serve previously undefined roles in host protection during infection of the central nervous system. Here, we identify a specialized function for RIPK3, a kinase traditionally associated with necroptotic cell death, in preserving neuronal survival during neurotropic flavivirus infection through the suppression of excitatory neurotransmission. We show that RIPK3 coordinates transcriptomic changes in neurons that suppress neuronal glutamate signaling, thereby desensitizing neurons to excitotoxic cell death. These effects occur independently of the traditional functions of RIPK3 in promoting necroptosis and inflammatory transcription. Instead, RIPK3 promotes phosphorylation of the key neuronal regulatory kinase CaMKII, which in turn activates the transcription factor CREB to drive a neuroprotective transcriptional program and suppress deleterious glutamatergic signaling. These findings identify an unexpected function for a canonical cell death protein in promoting neuronal survival during viral infection through the modulation of neuronal activity, highlighting new mechanisms of neuroimmune crosstalk.
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Affiliation(s)
- Irving Estevez
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Benjamin D. Buckley
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Nicholas Panzera
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Marissa Lindman
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Tsui-Wen Chou
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Micheal McCourt
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Brandon J. Vaglio
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Colm Atkins
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Bonnie L. Firestein
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - Brian P. Daniels
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
- Lead Contact
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4
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Peng ZY, Yang S, Lu HZ, Wang LM, Li N, Zhang HT, Xing SY, Du YN, Deng SQ. A review on Zika vaccine development. Pathog Dis 2024; 82:ftad036. [PMID: 38192053 PMCID: PMC10901608 DOI: 10.1093/femspd/ftad036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 12/15/2023] [Accepted: 01/05/2024] [Indexed: 01/10/2024] Open
Abstract
Zika virus (ZIKV), which belongs to the Flavivirus family, is mainly transmitted via the bite of Aedes mosquitoes. In newborns, ZIKV infection can cause severe symptoms such as microcephaly, while in adults, it can lead to Guillain‒Barré syndrome (GBS). Due to the lack of specific therapeutic methods against ZIKV, the development of a safe and effective vaccine is extremely important. Several potential ZIKV vaccines, such as live attenuated, inactivated, nucleic acid, viral vector, and recombinant subunit vaccines, have demonstrated promising outcomes in clinical trials involving human participants. Therefore, in this review, the recent developmental progress, advantages and disadvantages of these five vaccine types are examined, and practical recommendations for future development are provided.
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Affiliation(s)
- Zhe-Yu Peng
- The Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoon-oses of High Institutions in Anhui, Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Song Yang
- Institute of Agro-products Processing, Anhui Academy of Agricultural Sciences, Hefei 230031, Anhui, China
| | - Hong-Zheng Lu
- The Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoon-oses of High Institutions in Anhui, Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Lin-Min Wang
- The Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoon-oses of High Institutions in Anhui, Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Ni Li
- The Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoon-oses of High Institutions in Anhui, Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Hai-Ting Zhang
- The Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoon-oses of High Institutions in Anhui, Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Si-Yu Xing
- The Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoon-oses of High Institutions in Anhui, Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Yi-Nan Du
- The Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoon-oses of High Institutions in Anhui, Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Sheng-Qun Deng
- The Key Laboratory of Microbiology and Parasitology of Anhui Province, the Key Laboratory of Zoon-oses of High Institutions in Anhui, Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
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5
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Tejo AM, Hamasaki DT, Menezes LM, Ho YL. Severe dengue in the intensive care unit. JOURNAL OF INTENSIVE MEDICINE 2024; 4:16-33. [PMID: 38263966 PMCID: PMC10800775 DOI: 10.1016/j.jointm.2023.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 06/19/2023] [Accepted: 07/24/2023] [Indexed: 01/25/2024]
Abstract
Dengue fever is considered the most prolific vector-borne disease in the world, with its transmission rate increasing more than eight times in the last two decades. While most cases present mild to moderate symptoms, 5% of patients can develop severe disease. Although the mechanisms are yet not fully comprehended, immune-mediated activation leading to excessive cytokine expression is suggested as a cause of the two main findings in critical patients: increased vascular permeability that may shock and thrombocytopenia, and coagulopathy that can induce hemorrhage. The risk factors of severe disease include previous infection by a different serotype, specific genotypes associated with more efficient replication, certain genetic polymorphisms, and comorbidities such as diabetes, obesity, and cardiovascular disease. The World Health Organization recommends careful monitoring and prompt hospitalization of patients with warning signs or propensity for severe disease to reduce mortality. This review aims to update the diagnosis and management of patients with severe dengue in the intensive care unit.
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Affiliation(s)
- Alexandre Mestre Tejo
- Intensive Care Unit, Department of Intensive Medicine of the Cancer Institute of the State of São Paulo, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Debora Toshie Hamasaki
- Transfusion Medicine and Cell Therapy Department, A.C. Camargo Cancer Center, São Paulo, Brazil
| | - Letícia Mattos Menezes
- Intensive Care Unit of Infectious Disease Department, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Yeh-Li Ho
- Intensive Care Unit of Infectious Disease Department, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
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McCormack CP, Goethals O, Goeyvaerts N, Woot de Trixhe XD, Geluykens P, Borrenberghs D, Ferguson NM, Ackaert O, Dorigatti I. Modelling the impact of JNJ-1802, a first-in-class dengue inhibitor blocking the NS3-NS4B interaction, on in-vitro DENV-2 dynamics. PLoS Comput Biol 2023; 19:e1011662. [PMID: 38055683 PMCID: PMC10699615 DOI: 10.1371/journal.pcbi.1011662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 11/05/2023] [Indexed: 12/08/2023] Open
Abstract
Dengue virus (DENV) is a public health challenge across the tropics and subtropics. Currently, there is no licensed prophylactic or antiviral treatment for dengue. The novel DENV inhibitor JNJ-1802 can significantly reduce viral load in mice and non-human primates. Here, using a mechanistic viral kinetic model calibrated against viral RNA data from experimental in-vitro infection studies, we assess the in-vitro inhibitory effect of JNJ-1802 by characterising infection dynamics of two DENV-2 strains in the absence and presence of different JNJ-1802 concentrations. Viral RNA suppression to below the limit of detection was achieved at concentrations of >1.6 nM, with a median concentration exhibiting 50% of maximal inhibitory effect (IC50) of 1.23x10-02 nM and 1.28x10-02 nM for the DENV-2/RL and DENV-2/16681 strains, respectively. This work provides important insight into the in-vitro inhibitory effect of JNJ-1802 and presents a first step towards a modelling framework to support characterization of viral kinetics and drug effect across different host systems.
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Affiliation(s)
- Clare P. McCormack
- MRC Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, London, United Kingdom
| | - Olivia Goethals
- Janssen Global Public Health, Janssen Pharmaceutica NV, Beerse, Belgium
| | - Nele Goeyvaerts
- Janssen Research & Development, Janssen Pharmaceutica NV, Beerse, Belgium
| | | | - Peggy Geluykens
- Janssen Research & Development, Janssen Pharmaceutica NV, Beerse, Belgium
- Discovery, Charles River Beerse, Beerse, Belgium
| | | | - Neil M. Ferguson
- MRC Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, London, United Kingdom
| | - Oliver Ackaert
- Janssen Research & Development, Janssen Pharmaceutica NV, Beerse, Belgium
| | - Ilaria Dorigatti
- MRC Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, London, United Kingdom
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Dias RFC, Ribeiro BMRM, Cassani NM, Farago DN, Antoniucci GA, de Oliveira Rocha RE, de Oliveira Souza F, Pilau EJ, Jardim ACG, Ferreira RS, de Oliveira Rezende Júnior C. Discovery and structural optimization of a new series of N-acyl-2-aminobenzothiazole as inhibitors of Zika virus. Bioorg Med Chem 2023; 95:117488. [PMID: 37812885 DOI: 10.1016/j.bmc.2023.117488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/22/2023] [Accepted: 10/03/2023] [Indexed: 10/11/2023]
Abstract
Zika virus infection is associated to severe diseases such as congenital microcephaly and Zika fever causing serious harm to humans and special concern to health systems in low-income countries. Currently, there are no approved drugs against the virus, and the development of anti-Zika virus drugs is thus urgent. The present investigation describes the discovery and hit expansion of a N-acyl-2-aminobenzothiazole series of compounds against Zika virus replication. A structure-activity relationship study was obtained with the synthesis and evaluation of anti-Zika virus activity and cytotoxicity on Vero cells of nineteen derivatives. The three optimized compounds were 2.2-fold more potent than the initial hit and 20.9, 7.7 and 6.4-fold more selective. Subsequent phenotypic and biochemical assays were performed to evidence whether non-structural proteins, such as the complex NS2B-NS3pro, are related to the mechanism of action of the most active compounds.
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Affiliation(s)
- Renieidy Flávia Clemente Dias
- Laboratório de Síntese de Candidatos a Fármacos, Institute of Chemistry, Federal University of Uberlândia (UFU), Uberlândia, MG 38400-902, Brazil
| | - Beatriz Murta Rezende Moraes Ribeiro
- Laboratório de Modelagem Molecular e Planejamento de Fármacos, Department of Biochemistry and Immunology, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG 31270-901, Brazil
| | - Natasha Marques Cassani
- Laboratório de Pesquisa em Antivirais (LAPAV), Institute of Biomedical Sciences, Federal University of Uberlândia (UFU), Uberlândia, MG 38400-902, Brazil
| | - Danilo Nascimento Farago
- Laboratório de Síntese de Candidatos a Fármacos, Institute of Chemistry, Federal University of Uberlândia (UFU), Uberlândia, MG 38400-902, Brazil
| | - Giovanna André Antoniucci
- Laboratório de Pesquisa em Antivirais (LAPAV), Institute of Biomedical Sciences, Federal University of Uberlândia (UFU), Uberlândia, MG 38400-902, Brazil
| | - Rafael Eduardo de Oliveira Rocha
- Laboratório de Modelagem Molecular e Planejamento de Fármacos, Department of Biochemistry and Immunology, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG 31270-901, Brazil
| | - Felipe de Oliveira Souza
- Laboratório de Biomoléculas e Espectrometria de Massas (LaBioMass), State University of Maringá (UEM), Maringá, PR 807020-900, Brazil
| | - Eduardo Jorge Pilau
- Laboratório de Biomoléculas e Espectrometria de Massas (LaBioMass), State University of Maringá (UEM), Maringá, PR 807020-900, Brazil
| | - Ana Carolina Gomes Jardim
- Laboratório de Pesquisa em Antivirais (LAPAV), Institute of Biomedical Sciences, Federal University of Uberlândia (UFU), Uberlândia, MG 38400-902, Brazil
| | - Rafaela Salgado Ferreira
- Laboratório de Modelagem Molecular e Planejamento de Fármacos, Department of Biochemistry and Immunology, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG 31270-901, Brazil
| | - Celso de Oliveira Rezende Júnior
- Laboratório de Síntese de Candidatos a Fármacos, Institute of Chemistry, Federal University of Uberlândia (UFU), Uberlândia, MG 38400-902, Brazil.
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Loe MWC, Lee RCH, Chin WX, Min N, Teo ZY, Ho SX, Yi B, Chu JJH. Chelerythrine chloride inhibits Zika virus infection by targeting the viral NS4B protein. Antiviral Res 2023; 219:105732. [PMID: 37832876 DOI: 10.1016/j.antiviral.2023.105732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 10/04/2023] [Accepted: 10/07/2023] [Indexed: 10/15/2023]
Abstract
Zika virus (ZIKV) is a mosquito-borne virus that has re-emerged as a significant threat to global health in the recent decade. Whilst infections are primarily asymptomatic, the virus has been associated with the manifestation of severe neurological complications. At present, there is still a lack of approved antivirals for ZIKV infections. In this study, chelerythrine chloride, a benzophenanthridine alkaloid, was identified from a mid-throughput screen conducted on a 502-compound natural products library to be a novel and potent inhibitor of ZIKV infection in both in-vitro and in-vivo assays. Subsequent downstream studies demonstrated that the compound inhibits a post-entry step of the viral replication cycle and is capable of disrupting viral RNA synthesis and protein expression. The successful generation and sequencing of a ZIKV resistant mutant revealed that a single S61T mutation on the viral NS4B allowed ZIKV to overcome chelerythrine chloride inhibition. Further investigation revealed that chelerythrine chloride could directly inhibit ZIKV protein synthesis, and that the NS4B-S61T mutation confers resistance to this inhibition. This study has established chelerythrine chloride as a potential candidate for further development as a therapeutic agent against ZIKV infection.
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Affiliation(s)
- Marcus Wing Choy Loe
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore 117597, Singapore; Infectious Disease Translational Research Programme and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Regina Ching Hua Lee
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore 117597, Singapore; Infectious Disease Translational Research Programme and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Wei-Xin Chin
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore 117597, Singapore; Infectious Disease Translational Research Programme and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Nyo Min
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore 117597, Singapore; Infectious Disease Translational Research Programme and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Zi Yun Teo
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore 117597, Singapore; Infectious Disease Translational Research Programme and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Si Xian Ho
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore 117597, Singapore; Infectious Disease Translational Research Programme and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Bowen Yi
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore 117597, Singapore; Infectious Disease Translational Research Programme and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore; Biosafety Level 3 Core Facility, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599, Singapore
| | - Justin Jang Hann Chu
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore 117597, Singapore; Infectious Disease Translational Research Programme and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore; Biosafety Level 3 Core Facility, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599, Singapore; Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore 138673, Singapore.
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