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El-Khobar KE, Tay E, Diefenbach E, Gloss BS, George J, Douglas MW. Polo-like kinase-1 mediates hepatitis C virus-induced cell migration, a drug target for liver cancer. Life Sci Alliance 2023; 6:e202201630. [PMID: 37648284 PMCID: PMC10468647 DOI: 10.26508/lsa.202201630] [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: 07/26/2022] [Revised: 08/04/2023] [Accepted: 08/18/2023] [Indexed: 09/01/2023] Open
Abstract
Polo-like kinase 1 (PLK1) is a regulator of cell mitosis and cytoskeletal dynamics. PLK1 overexpression in liver cancer is associated with tumour progression, metastasis, and vascular invasion. Hepatitis C virus (HCV) NS5A protein stimulates PLK1-mediated phosphorylation of host proteins, so we hypothesised that HCV-PLK1 interactions might be a mechanism for HCV-induced liver cancer. We used a HCV cell-culture model (Jc1) to investigate the effects of virus infection on the cytoskeleton. In HCV-infected cells, a novel posttranslational modification in β-actin was observed with phosphorylation at Ser239. Using in silico and in vitro approaches, we identified PLK1 as the mediating kinase. In functional experiments with a phosphomimetic mutant form of β-actin, Ser239 phosphorylation influences β-actin polymerization and distribution, resulting in increased cell motility. The changes were prevented by treating cells with the PLK1 inhibitor volasertib. In HCV-infected hepatocytes, increased cell motility contributes to cancer cell migration, invasion, and metastasis. PLK1 is an important mediator of these effects and early treatment with PLK1 inhibitors may prevent or reduce HCC progression, particularly in people with HCV-induced HCC.
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Affiliation(s)
- Korri E El-Khobar
- https://ror.org/04zj3ra44 Storr Liver Centre, Westmead Institute for Medical Researchhttps://ror.org/0384j8v12 , University of Sydney https://ror.org/04gp5yv64 at Westmead Hospital, Westmead, Australia
- Eijkman Institute for Molecular Biology, Jakarta, Indonesia
| | - Enoch Tay
- https://ror.org/04zj3ra44 Storr Liver Centre, Westmead Institute for Medical Researchhttps://ror.org/0384j8v12 , University of Sydney https://ror.org/04gp5yv64 at Westmead Hospital, Westmead, Australia
| | - Eve Diefenbach
- https://ror.org/04zj3ra44 Protein Core Facility, Westmead Institute for Medical Research, Westmead, Australia
| | - Brian S Gloss
- https://ror.org/04zj3ra44 Westmead Research Hub, Westmead Institute for Medical Research, Westmead, Australia
| | - Jacob George
- https://ror.org/04zj3ra44 Storr Liver Centre, Westmead Institute for Medical Researchhttps://ror.org/0384j8v12 , University of Sydney https://ror.org/04gp5yv64 at Westmead Hospital, Westmead, Australia
| | - Mark W Douglas
- https://ror.org/04zj3ra44 Storr Liver Centre, Westmead Institute for Medical Researchhttps://ror.org/0384j8v12 , University of Sydney https://ror.org/04gp5yv64 at Westmead Hospital, Westmead, Australia
- https://ror.org/0384j8v12 Centre for Infectious Diseases and Microbiology, Sydney Infectious Diseases Institute, University of Sydney https://ror.org/04gp5yv64 at Westmead Hospital, Westmead, Australia
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Su S, Liu X, Tian RR, Qiao KX, Zheng CB, Gao WC, Yang LM, Kang QZ, Zheng YT. Cell membrane skeletal protein 4.1R participates in entry of Zika virus into cells. Virus Res 2021; 306:198593. [PMID: 34637814 DOI: 10.1016/j.virusres.2021.198593] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 09/22/2021] [Accepted: 10/04/2021] [Indexed: 11/25/2022]
Abstract
Zika virus (ZIKV) is a typical mosquito-borne flavivirus known to cause severe fetal microcephaly and adult Guillain-Barré syndrome. Currently, there are no specific drugs or licensed vaccines available for ZIKV infection, and further research is required to identify host cell proteins involved in the virus's life cycle. Viruses are known to use host cell membrane skeletal proteins, such as actin and spectrin, to complete cell entry, transportation, and release. Here, based on immunoprecipitation, the Axl and ZIKV envelope (E) protein were shown to interact with the cell membrane skeleton protein 4.1R. Furthermore, deletion of 4.1R significantly reduced virus titer and viral protein synthesis. Our study showed that 4.1R is an important host cell protein during ZIKV infection and may be involved in the process of viral entry into host cells.
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Affiliation(s)
- Shan Su
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences /Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Center for Biosafety Mega-Science, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Xin Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Ren-Rong Tian
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences /Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Center for Biosafety Mega-Science, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Kai-Xuan Qiao
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences /Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Center for Biosafety Mega-Science, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Chang-Bo Zheng
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Wen-Cong Gao
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Liu-Meng Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences /Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Center for Biosafety Mega-Science, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Qiao-Zhen Kang
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China.
| | - Yong-Tang Zheng
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences /Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Center for Biosafety Mega-Science, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China.
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Wan YH, Wu WY, Guo SX, He SJ, Tang XD, Wu XY, Nandakumar KS, Zou M, Li L, Chen XG, Liu SW, Yao XG. [1,2,4]Triazolo[1,5-a]pyrimidine derivative (Mol-5) is a new NS5-RdRp inhibitor of DENV2 proliferation and DENV2-induced inflammation. Acta Pharmacol Sin 2020; 41:706-718. [PMID: 31729469 PMCID: PMC7471397 DOI: 10.1038/s41401-019-0316-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 09/30/2019] [Indexed: 02/07/2023] Open
Abstract
Dengue fever is an acute infectious disease caused by dengue virus (DENV) and transmitted by Aedes mosquitoes. There is no effective vaccine or antiviral drug available to date to prevent or treat dengue disease. Recently, RNA-dependent RNA polymerase (RdRp), a class of polymerases involved in the synthesis of complementary RNA strands using single-stranded RNA, has been proposed as a promising drug target. Hence, we screened new molecules against DENV RdRp using our previously constructed virtual screening method. Mol-5, [1,2,4]triazolo[1,5-a]pyrimidine derivative, was screened out from an antiviral compound library (~8000 molecules). Using biophysical methods, we confirmed the direct interactions between mol-5 and purified DENV RdRp protein. In luciferase assay, mol-5 inhibited NS5-RdRp activity with an IC50 value of 1.28 ± 0.2 μM. In the cell-based cytopathic effect (CPE) assay, mol-5 inhibited DENV2 infectivity with an EC50 value of 4.5 ± 0.08 μM. Mol-5 also potently inhibited DENV2 RNA replication as observed in immunofluorescence assay and qRT-PCR. Both the viral structural (E) and non-structural (NS1) proteins of DENV2 were dose-dependently decreased by treatment with mol-5 (2.5–10 μM). Mol-5 treatment suppressed DENV2-induced inflammation in host cells, but had no direct effect on host defense (JAK/STAT-signaling pathway). These results demonstrate that mol-5 could be a novel RdRp inhibitor amenable for further research and development.
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Ahmad MN, Hilmi NHN, Normaya E, Yarmo MA, Bulat KHK. Optimization of a protease extraction using a statistical approach for the production of an alternative meat tenderizer from Manihot esculenta roots. Journal of Food Science and Technology 2020; 57:2852-2862. [PMID: 32612298 DOI: 10.1007/s13197-020-04317-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 12/13/2019] [Accepted: 02/25/2020] [Indexed: 12/11/2022]
Abstract
Abstract Meat tenderness is the most important criterion in food quality because it strongly influences the consumer's satisfaction. Tenderness generally depends on connective tissue and sarcomere length of muscle. One of the effective methods for meat tenderizing is protease treatment. In this study, Manihot esculenta root was chosen as a protease source due to its skin blistering effect, suggesting the presence of strong proteolytic activity. The extraction of the crude protease was optimized by using response surface methodology (RSM) with four independent variables, which were pH (X1), CaCl2 (X2), Triton X-100 (X3) and 2-mercaptoethanol (X4). Based on the RSM model, all the independent variables were significant and the optimum extraction conditions were pH 9, 3.24 mM CaCl2, 4.12% Triton X-100 and 6.32 mM 2-mercaptoethanol. Tukey's test results showed that the difference between the expected and experimental protease activity value was 0.05%. A reduction of meat firmness was observed when samples treated with enzyme were compared with a control by using a texture analyser. Electrophoretic patterns also showed extensive proteolysis and a reduction of intensity and number of the protein bands in the treated sample. SEM clearly revealed the degradation of muscle fibres and connective tissue of meat treated with crude protease. Graphic abstract
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Affiliation(s)
- Mohammad Norazmi Ahmad
- Experimental and Theoretical Research Lab, Department of Chemistry, Kulliyah of Science, International Islamic University Malaysia, Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, 25200 Kuantan, Pahang Malaysia
| | - Nik Husna Nik Hilmi
- Experimental and Theoretical Research Lab, Department of Chemistry, Kulliyah of Science, International Islamic University Malaysia, Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, 25200 Kuantan, Pahang Malaysia
| | - Erna Normaya
- Experimental and Theoretical Research Lab, Department of Chemistry, Kulliyah of Science, International Islamic University Malaysia, Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, 25200 Kuantan, Pahang Malaysia
| | - Mohd Ambar Yarmo
- School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Malaysia
| | - Ku Halim Ku Bulat
- Department of Chemistry, Faculty of Science, University Malaysia Terengganu, Mengabang Telipot, 21030 Kuala Terengganu, Terengganu Darul Iman Malaysia
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Furnon W, Fender P, Confort MP, Desloire S, Nangola S, Kitidee K, Leroux C, Ratinier M, Arnaud F, Lecollinet S, Boulanger P, Hong SS. Remodeling of the Actin Network Associated with the Non-Structural Protein 1 (NS1) of West Nile Virus and Formation of NS1-Containing Tunneling Nanotubes. Viruses 2019; 11:v11100901. [PMID: 31569658 PMCID: PMC6832617 DOI: 10.3390/v11100901] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/24/2019] [Accepted: 09/24/2019] [Indexed: 12/14/2022] Open
Abstract
The cellular response to the recombinant NS1 protein of West Nile virus (NS1WNV) was studied using three different cell types: Vero E6 simian epithelial cells, SH-SY5Y human neuroblastoma cells, and U-87MG human astrocytoma cells. Cells were exposed to two different forms of NS1WNV: (i) the exogenous secreted form, sNS1WNV, added to the extracellular milieu; and (ii) the endogenous NS1WNV, the intracellular form expressed in plasmid-transfected cells. The cell attachment and uptake of sNS1WNV varied with the cell type and were only detectable in Vero E6 and SH-SY5Y cells. Addition of sNS1WNV to the cell culture medium resulted in significant remodeling of the actin filament network in Vero E6 cells. This effect was not observed in SH-SY5Y and U-87MG cells, implying that the cellular uptake of sNS1WNV and actin network remodeling were dependent on cell type. In the three cell types, NS1WNV-expressing cells formed filamentous projections reminiscent of tunneling nanotubes (TNTs). These TNT-like projections were found to contain actin and NS1WNV proteins. Interestingly, similar actin-rich, TNT-like filaments containing NS1WNV and the viral envelope glycoprotein EWNV were also observed in WNV-infected Vero E6 cells.
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Affiliation(s)
- Wilhelm Furnon
- Université de Lyon, University Claude Bernard Lyon 1, INRA, EPHE, IVPC, UMR754, Viral Infections & Comparative Pathology, Cedex 07, 69366 Lyon, France.
| | - Pascal Fender
- Institut de Biologie Structurale, CNRS UMR 5075, 38042 Grenoble, France.
| | - Marie-Pierre Confort
- Université de Lyon, University Claude Bernard Lyon 1, INRA, EPHE, IVPC, UMR754, Viral Infections & Comparative Pathology, Cedex 07, 69366 Lyon, France.
| | - Sophie Desloire
- Université de Lyon, University Claude Bernard Lyon 1, INRA, EPHE, IVPC, UMR754, Viral Infections & Comparative Pathology, Cedex 07, 69366 Lyon, France.
| | - Sawitree Nangola
- Department of Medical Technology, School of Allied Health Sciences, University of Phayao, Phayao 56000, Thailand.
| | - Kuntida Kitidee
- Center for Research & Innovation, Faculty of Medical Technology, Mahidol University, Nakhon Pathom 73170, Thailand.
| | - Caroline Leroux
- Université de Lyon, University Claude Bernard Lyon 1, INRA, EPHE, IVPC, UMR754, Viral Infections & Comparative Pathology, Cedex 07, 69366 Lyon, France.
| | - Maxime Ratinier
- Université de Lyon, University Claude Bernard Lyon 1, INRA, EPHE, IVPC, UMR754, Viral Infections & Comparative Pathology, Cedex 07, 69366 Lyon, France.
- EPHE, PSL Research University, INRA, Université de Lyon, University Claude Bernard Lyon 1, UMR754, IVPC, Cedex 07, 69366 Lyon, France.
| | - Frédérick Arnaud
- Université de Lyon, University Claude Bernard Lyon 1, INRA, EPHE, IVPC, UMR754, Viral Infections & Comparative Pathology, Cedex 07, 69366 Lyon, France.
- EPHE, PSL Research University, INRA, Université de Lyon, University Claude Bernard Lyon 1, UMR754, IVPC, Cedex 07, 69366 Lyon, France.
| | - Sylvie Lecollinet
- UMR-1161 Virology, ANSES, INRA, Ecole Nationale Vétérinaire d'Alfort, ANSES Animal Health Laboratory, EURL on Equine Diseases, 94704 Maisons-Alfort, France.
| | - Pierre Boulanger
- Université de Lyon, University Claude Bernard Lyon 1, INRA, EPHE, IVPC, UMR754, Viral Infections & Comparative Pathology, Cedex 07, 69366 Lyon, France.
| | - Saw-See Hong
- Université de Lyon, University Claude Bernard Lyon 1, INRA, EPHE, IVPC, UMR754, Viral Infections & Comparative Pathology, Cedex 07, 69366 Lyon, France.
- Institut National de la Santé et de la Recherche Médicale, 101, rue de Tolbiac, Cedex 13, 75654 Paris, France.
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7
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Ignatieva EV, Yurchenko AA, Voevoda MI, Yudin NS. Exome-wide search and functional annotation of genes associated in patients with severe tick-borne encephalitis in a Russian population. BMC Med Genomics 2019; 12:61. [PMID: 31122248 PMCID: PMC6533173 DOI: 10.1186/s12920-019-0503-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background Tick-borne encephalitis (TBE) is a viral infectious disease caused by tick-borne encephalitis virus (TBEV). TBEV infection is responsible for a variety of clinical manifestations ranging from mild fever to severe neurological illness. Genetic factors involved in the host response to TBEV that may potentially play a role in the severity of the disease are still poorly understood. In this study, using whole-exome sequencing, we aimed to identify genetic variants and genes associated with severe forms of TBE as well as biological pathways through which the identified variants may influence the severity of the disease. Results Whole-exome sequencing data analysis was performed on 22 Russian patients with severe forms of TBE and 17 Russian individuals from the control group. We identified 2407 candidate genes harboring rare, potentially pathogenic variants in exomes of patients with TBE and not containing any rare, potentially pathogenic variants in exomes of individuals from the control group. According to DAVID tool, this set of 2407 genes was enriched with genes involved in extracellular matrix proteoglycans pathway and genes encoding proteins located at the cell periphery. A total of 154 genes/proteins from these functional groups have been shown to be involved in protein-protein interactions (PPIs) with the known candidate genes/proteins extracted from TBEVHostDB database. By ranking these genes according to the number of rare harmful minor alleles, we identified two genes (MSR1 and LMO7), harboring five minor alleles, and three genes (FLNA, PALLD, PKD1) harboring four minor alleles. When considering genes harboring genetic variants associated with severe forms of TBE at the suggestive P-value < 0.01, 46 genes containing harmful variants were identified. Out of these 46 genes, eight (MAP4, WDFY4, ACTRT2, KLHL25, MAP2K3, MBD1, OR10J1, and OR2T34) were additionally found among genes containing rare pathogenic variants identified in patients with TBE; and five genes (WDFY4,ALK, MAP4, BNIPL, EPPK1) were found to encode proteins that are involved in PPIs with proteins encoded by genes from TBEVHostDB. Three genes out of five (MAP4, EPPK1, ALK) were found to encode proteins located at cell periphery. Conclusions Whole-exome sequencing followed by systems biology approach enabled to identify eight candidate genes (MAP4, WDFY4, ACTRT2, KLHL25, MAP2K3, MBD1, OR10J1, and OR2T34) that can potentially determine predisposition to severe forms of TBE. Analyses of the genetic risk factors for severe forms of TBE revealed a significant enrichment with genes controlling extracellular matrix proteoglycans pathway as well as genes encoding components of cell periphery. Electronic supplementary material The online version of this article (10.1186/s12920-019-0503-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Elena V Ignatieva
- Laboratory of Evolutionary Bioinformatics and Theoretical Genetics, The Federal Research Center Institute of Cytology and Genetics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia. .,Novosibirsk State University, Novosibirsk, 630090, Russia.
| | - Andrey A Yurchenko
- Laboratory of Infectious Disease Genomics, The Federal Research Center Institute of Cytology and Genetics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Mikhail I Voevoda
- Novosibirsk State University, Novosibirsk, 630090, Russia.,Research Institute of Internal and Preventive Medicine-Branch of Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, 630004, Russia
| | - Nikolay S Yudin
- Laboratory of Infectious Disease Genomics, The Federal Research Center Institute of Cytology and Genetics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia.,Novosibirsk State University, Novosibirsk, 630090, Russia
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Ramos Y, Huerta V, Martín D, Palomares S, Yero A, Pupo D, Gallien S, Martín AM, Pérez-Riverol Y, Sarría M, Guirola O, Chinea G, Domon B, González LJ. An "on-matrix" digestion procedure for AP-MS experiments dissects the interplay between complex-conserved and serotype-specific reactivities in Dengue virus-human plasma interactome. J Proteomics 2019; 193:71-84. [PMID: 28713027 DOI: 10.1016/j.jprot.2017.07.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 06/21/2017] [Accepted: 07/11/2017] [Indexed: 02/07/2023]
Abstract
The interactions between the four Dengue virus (DENV) serotypes and plasma proteins are crucial in the initial steps of viral infection to humans. Affinity purification combined with quantitative mass spectrometry analysis, has become one of the most powerful tools for the investigation on novel protein-protein interactions. Using this approach, we report here that a significant number of bait-interacting proteins do not dissociate under standard elution conditions, i.e. acid pH and chaotropic agents, and that this problem can be circumvented by using the "on-matrix" digestion procedure described here. This procedure enabled the identification of 16 human plasma proteins interacting with domain III from the envelope protein of DENV serotypes 1, 3 and 4 that would have not been detected otherwise and increased the known DIIIE interactors in human plasma to 59 proteins. Selected Reaction Monitoring analysis evidenced DENV interactome in human plasma is rather conserved although significant differences on the reactivity of viral serotypes with specific proteins do exist. A comparison between the serotype-dependent profile of reactivity and the conservation pattern of amino acid residues suggests an evolutionary selection of highly conserved interactions with the host and other interactions mediated for surface regions of higher variability. SIGNIFICANCE: False negative results on the identification of interacting proteins in pull-down experiments compromise the subsequent interpretation of results and the formulation of a working hypothesis for the derived future work. In this study we demonstrate the presence of bait-interacting proteins reluctant to dissociate under elution conditions of acid pH and presence of chaotropics. We propose the direct proteolytic digestion of proteins while still bound to the affinity matrix ("on-matrix" digestion) and evaluate the impact of this methodology in the comparative study of the interactome of the four serotypes of Dengue virus mediated by the domain III of the viral envelope glycoprotein. Fifty nine proteins were identified as putative interaction partners of Dengue virus (IPs) either due to direct binding or by co-isolation with interacting proteins. Collectively the IPs identified from the pull-down with the recombinant domain III proteins representing the four viral serotypes, 29% were identified only after "on-matrix" digestion which demonstrate the usefulness of this method of recovering bait-bound proteins. Results highlight a particular importance of "on-matrix" digestion procedure for comparative studies where a stronger interaction with one of the interest baits could prevent a bound protein to elute under standard conditions thus leading to misinterpretation as absent in the interactome of this particular bait. The analysis of the Interaction Network indicates that Dengue virus interactome mediated by the domain III of the envelope protein is rather conserved in the viral complex suggesting a key role of these interactions for viral infection thus making candidates to explore for potential biomarkers of clinical outcome in DENV-caused disease. Interestingly, some particular IPs exhibit significant differences in the strength of the interaction with the viral serotypes representing interactions that involve more variable regions in the surface of the domain III. Since such variable regions are the consequence of the interaction with antibodies generated by human immune response; this result relates the interaction with proteins from human plasma with the interplay of the virus and the human immune system.
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Affiliation(s)
- Yassel Ramos
- Center for Genetic Engineering and Biotechnology, Cuba.
| | - Vivian Huerta
- Center for Genetic Engineering and Biotechnology, Cuba
| | - Dayron Martín
- Center for Genetic Engineering and Biotechnology, Cuba
| | | | - Alexis Yero
- Center for Genetic Engineering and Biotechnology, Cuba
| | - Dianne Pupo
- Center for Genetic Engineering and Biotechnology, Cuba
| | | | | | | | - Mónica Sarría
- Center for Genetic Engineering and Biotechnology, Cuba
| | | | - Glay Chinea
- Center for Genetic Engineering and Biotechnology, Cuba
| | - Bruno Domon
- Luxembourg Clinical Proteomics Center, Luxembourg
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Rawarak N, Suttitheptumrong A, Reamtong O, Boonnak K, Pattanakitsakul SN. Protein Disulfide Isomerase Inhibitor Suppresses Viral Replication and Production during Antibody-Dependent Enhancement of Dengue Virus Infection in Human Monocytic Cells. Viruses 2019; 11:v11020155. [PMID: 30781856 PMCID: PMC6410196 DOI: 10.3390/v11020155] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 02/11/2019] [Accepted: 02/12/2019] [Indexed: 12/12/2022] Open
Abstract
One of several mechanisms that leads to the development of dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS) is called antibody-dependent enhancement (ADE). Monocytes can be infected by the ADE phenomenon, which occurs in dengue secondary infection. This study aimed to investigate the proteins involved in ADE of DENV infection in the human monocytic cell line U937. The phosphoproteins were used to perform and analyze for protein expression using mass spectrometry (GeLC-MS/MS). The differential phosphoproteins revealed 1131 altered proteins compared between isotype- and DENV-specific antibody-treated monocytes. The altered proteins revealed 558 upregulated proteins and 573 downregulated proteins. Protein disulfide isomerase (PDI), which is an enzyme that had a high-ranking fold change and that catalyzes the formation, breakage, and rearrangement of disulfide bonds within a protein molecule, was selected for further study. PDI was found to be important for dengue virus infectivity during the ADE model. The effect of PDI inhibition was also shown to be involved in the early stage of life cycle by time-of-drug-addition assay. These results suggest that PDI is important for protein translation and virion assembly of dengue virus during infection in human monocytes, and it may play a significant role as a chaperone to stabilize dengue protein synthesis.
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Affiliation(s)
- Nantapon Rawarak
- Division of Molecular Medicine, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.
- Graduate Program in Immunology, Department of Immunology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.
| | - Aroonroong Suttitheptumrong
- Division of Molecular Medicine, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.
| | - Onrapak Reamtong
- Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand.
| | - Kobporn Boonnak
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand.
| | - Sa-Nga Pattanakitsakul
- Division of Molecular Medicine, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.
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Zhang Y, Gao W, Li J, Wu W, Jiu Y. The Role of Host Cytoskeleton in Flavivirus Infection. Virol Sin 2019; 34:30-41. [PMID: 30725318 DOI: 10.1007/s12250-019-00086-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 12/10/2018] [Indexed: 01/07/2023] Open
Abstract
The family of flaviviruses is one of the most medically important groups of emerging arthropod-borne viruses. Host cell cytoskeletons have been reported to have close contact with flaviviruses during virus entry, intracellular transport, replication, and egress process, although many detailed mechanisms are still unclear. This article provides a brief overview of the function of the most prominent flaviviruses-induced or -hijacked cytoskeletal structures including actin, microtubules and intermediate filaments, mainly focus on infection by dengue virus, Zika virus and West Nile virus. We suggest that virus interaction with host cytoskeleton to be an interesting area of future research.
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Affiliation(s)
- Yue Zhang
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wei Gao
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jian Li
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Weihua Wu
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Yaming Jiu
- CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China. .,University of Chinese Academy of Sciences, Beijing, 100049, China.
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11
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Balasubramanian A, Pilankatta R, Teramoto T, Sajith AM, Nwulia E, Kulkarni A, Padmanabhan R. Inhibition of dengue virus by curcuminoids. Antiviral Res 2018; 162:71-78. [PMID: 30529358 DOI: 10.1016/j.antiviral.2018.12.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 11/21/2018] [Accepted: 12/02/2018] [Indexed: 01/01/2023]
Abstract
The dengue virus is considered to be a globally important human pathogen prevalent in tropical and subtropical regions of the world. According to a recent estimate, the disease burden due to DENV infections is ∼390 million infections per year globally in ∼100 countries including the southern US, Puerto Rico and Hawaii, resulting in nearly ∼25,000 deaths mostly among children. Despite the significant morbidity and mortality that results from DENV infections, there is currently no effective chemotherapeutic treatment for DENV infections. We identified curcumin as an inhibitor of DENV2 NS2B/NS3protease in a previous high-throughput screening (HTS) campaign. We synthesized four analogues of curcumin (curcuminoids) and tested the in vitro protease inhibition activity and inhibition of replication by cell-based assays. The results revealed that curcumin is a weak inhibitor of the viral protease. However, the analogues exhibited more potent inhibition of DENV infectivity in plaque assays suggesting that the cellular pathway(s) required for viral replication and/or assembly are targeted by these compounds. Further analysis shows that inhibition of genes involved in lipid biosynthesis, and of actin polymerization by curcuminoids, are likely to be involved as their mode of action in DENV2-infected cells. Three of the curcumin derivatives possess good selectivity indices (SI) (>10) when compared to the parent curcumin.
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Affiliation(s)
| | - Rajendra Pilankatta
- Department of Microbiology and Immunology, Georgetown University, Washington, D.C, USA
| | - Tadahisa Teramoto
- Department of Microbiology and Immunology, Georgetown University, Washington, D.C, USA
| | - Ayyiliath M Sajith
- Department of Psychiatry and Behavioral Sciences, College of Medicine, Howard University, Washington, D.C, USA
| | - Evaristus Nwulia
- Department of Psychiatry and Behavioral Sciences, College of Medicine, Howard University, Washington, D.C, USA
| | - Amol Kulkarni
- Department of Pharmaceutical Sciences, College of Pharmacy, Howard University, Washington, D.C, USA.
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12
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Cuartas-López AM, Hernández-Cuellar CE, Gallego-Gómez JC. Disentangling the role of PI3K/Akt, Rho GTPase and the actin cytoskeleton on dengue virus infection. Virus Res 2018; 256:153-165. [DOI: 10.1016/j.virusres.2018.08.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 07/30/2018] [Accepted: 08/14/2018] [Indexed: 12/22/2022]
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13
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Kuadkitkan A, Wikan N, Smith DR. Induced pluripotent stem cells: A new addition to the virologists armamentarium. J Virol Methods 2017; 235:191-195. [PMID: 27544025 DOI: 10.1016/j.jviromet.2016.03.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 03/23/2016] [Accepted: 03/23/2016] [Indexed: 12/01/2022]
Abstract
A significant amount of our understanding of the molecular events occurring during viral replication has originated from studies utilizing cell lines. These cell lines are normally obtained by the culture of samples from spontaneously occurring tumors or are derived by genetic manipulation of primary cells. The genetic events inducing immortalization and/or transformation to allow continual passage in culture can have profound effects resulting in a marked loss of cell type fidelity. The development of induced pluripotent stem cells (iPSCs) has revolutionized the field of developmental biology and is ushering in an era of personalized medicine for a wide range of inherited genetic diseases. Previously, development of iPSCs required dedicated facilities as well as highly detailed technical knowledge. The pace of development in this field however has been so rapid, that iPSCs are moving into an era of "off the shelf" use, whereby the use and manipulation of these cells is well within the ability of the majority of laboratories with standard tissue culture facilities. The introduction of iPSCs to studies in the field of virology is still in its infancy, and so far has been largely confined to viruses that are difficult to propagate in other experimental systems, but it is likely that this technology will become a standard methodology in the virologists armamentarium.
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Affiliation(s)
- Atichat Kuadkitkan
- Institute of Molecular Biosciences, Mahidol University, Bangkok, Thailand
| | - Nitwara Wikan
- Institute of Molecular Biosciences, Mahidol University, Bangkok, Thailand
| | - Duncan R Smith
- Institute of Molecular Biosciences, Mahidol University, Bangkok, Thailand; Center for Emerging and Neglected Infectious Diseases, Mahidol University, Bangkok, Thailand.
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14
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Panraksa P, Ramphan S, Khongwichit S, Smith DR. Activity of andrographolide against dengue virus. Antiviral Res 2016; 139:69-78. [PMID: 28034742 DOI: 10.1016/j.antiviral.2016.12.014] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 11/29/2016] [Accepted: 12/21/2016] [Indexed: 12/31/2022]
Abstract
Dengue is the most prevalent arthropod-transmitted viral illness of humans, with an estimated 100 million symptomatic infections occurring each year and more than 2.5 billion people living at risk of infection. There are no approved antiviral agents against dengue virus, and there is only limited introduction of a dengue vaccine in some countries. Andrographolide is derived from Andrographis paniculata, a medicinal plant traditionally used to treat a number of conditions including infections. The antiviral activity of andrographolide against dengue virus (DENV) serotype 2 was evaluated in two cell lines (HepG2 and HeLa) while the activity against DENV 4 was evaluated in one cell line (HepG2). Results showed that andrographolide had significant anti-DENV activity in both cell lines, reducing both the levels of cellular infection and virus output, with 50% effective concentrations (EC50) for DENV 2 of 21.304 μM and 22.739 μM for HepG2 and HeLa respectively. Time of addition studies showed that the activity of andrographolide was confined to a post-infection stage. These results suggest that andrographolide has the potential for further development as an anti-viral agent for dengue virus infection.
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Affiliation(s)
- Patcharee Panraksa
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Suwipa Ramphan
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Sarawut Khongwichit
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Duncan R Smith
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand; Center for Emerging and Neglected Infectious Diseases, Mahidol University, Nakhon Pathom, Thailand.
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15
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Superficial vimentin mediates DENV-2 infection of vascular endothelial cells. Sci Rep 2016; 6:38372. [PMID: 27910934 PMCID: PMC5133558 DOI: 10.1038/srep38372] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 11/08/2016] [Indexed: 11/25/2022] Open
Abstract
Damage to vascular endothelial cells (VECs) is a critical hallmark of hemorrhagic diseases caused by dengue virus (DENV). However, the precise molecular event involved in DENV binding and infection of VECs has yet to be clarified. In this study, vimentin (55 kDa) was identified to be involved in DENV-2 adsorption into VECs. This protein is located on the surface of VECs and interacts with DENV-2 envelope protein domain III (EDIII). The expression level of the superficial vimentin on VECs was not affected by viral infection or siRNA interference, indicating that the protein exists in a particular mode. Furthermore, the rod domain of the vimentin protein mainly functions in DENV-2 adsorption into VECs. Molecular docking results predicted several residues in vimentin rod and DENV EDIII; these residues may be responsible for cell–virus interactions. We propose that the superficial vimentin could be a novel molecule involved in DENV binding and infection of VECs. DENV EDIII directly interacts with the rod domain of vimentin on the VEC surface and thus mediates the infection.
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16
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Jitobaom K, Tongluan N, Smith DR. Involvement of voltage-dependent anion channel (VDAC) in dengue infection. Sci Rep 2016; 6:35753. [PMID: 27779201 PMCID: PMC5078847 DOI: 10.1038/srep35753] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 10/05/2016] [Indexed: 01/07/2023] Open
Abstract
During infection, dengue virus (DENV) proteins interact with host cellular constituents promoting the remodeling of the cell to facilitate virus production. While a number of interacting proteins have been identified for DENV non-structural proteins, far fewer interacting partners have been identified for the DENV structural proteins. One protein that has been identified as a DENV E protein interacting protein is the cellular chaperone GRP78. GRP78 has been shown to have a number of cellular interacting partners including the voltage-dependent anion channel (VDAC). In this study we confirmed the interactions between GRP78 and DENV E protein and between GRP78 and VDAC. VDAC was shown to be re-localized during DENV infection, with no change in levels of protein expression. VDAC is predominantly located on the outer membrane of mitochondria and our result is consistent with movement of the mitochondria towards the ER during DENV infection. Down regulation of VDAC through siRNA significantly reduced DENV protein expression, as well as the percentage infection and output virus titer. Our results suggest that VDAC plays an important role in DENV infection.
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Affiliation(s)
- Kunlakanya Jitobaom
- Institute of Molecular Biosciences Mahidol University, Salaya Campus, 25/25 Phuttamonthon Sai 4, Salaya, Nakhon Pathom 73170, Thailand
| | - Natthida Tongluan
- Institute of Molecular Biosciences Mahidol University, Salaya Campus, 25/25 Phuttamonthon Sai 4, Salaya, Nakhon Pathom 73170, Thailand
| | - Duncan R Smith
- Institute of Molecular Biosciences Mahidol University, Salaya Campus, 25/25 Phuttamonthon Sai 4, Salaya, Nakhon Pathom 73170, Thailand.,Center for Emerging and Neglected Infectious Diseases, Mahidol University, Salaya Campus, 25/25 Phuttamonthon Sai 4, Salaya, Nakhon Pathom 73170, Thailand
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17
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Paul A, Vibhuti A, Raj S. Molecular docking NS4B of DENV 1-4 with known bioactive phyto-chemicals. Bioinformation 2016; 12:140-148. [PMID: 28149049 PMCID: PMC5267958 DOI: 10.6026/97320630012140] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Revised: 05/12/2016] [Accepted: 05/13/2016] [Indexed: 02/05/2023] Open
Abstract
Dengue disease is a global disease that has no effective treatment. The dengue virus (DENV) NS4B is a target for designing specific antivirals due to its importance in viral replication. Medicinal plants have been a savior for dengue virus as they consist of a class of phytochemicals having anti-viral activity and can pose a new approach ofstrong drug against viruses. The present study analyzes the activity of compounds against NS4B of DENV (1-4) serotypes. In this study Catechin, Cianidanol, Epicatechin, Eupatoretin, Glabranin, Laurifolin, DL-Catechin, astherapeutic agents were filtered by using Lipinski rule's five and the drug-likeness property of these agents were used for assessment of pharmacological properties. The molecular docking results presented the 2-D structures of bioactive complex, which interacted with especially conserved residues of target domains. Interestingly, we find the Catechin, Laurifolin, Cianidanol have highest binding energy against NS4B in DENV-1,2,4 which is evident by the formation of more hydrogen bonds with the amino acid residues at the binding site of the receptor. Our results revealed that the bioactive compound, especially Catechin has significant anti-dengue activities. In addition, this study may be helpful in further experimental investigations.
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Affiliation(s)
- Anubrata Paul
- Department of Biotechnology, Centre for Drug Design Discovery and Development (C-4D), SRM University, Delhi NCR, Sonepat, Haryana, India
| | - Arpana Vibhuti
- Department of Biotechnology, Centre for Drug Design Discovery and Development (C-4D), SRM University, Delhi NCR, Sonepat, Haryana, India
| | - Samuel Raj
- Department of Biotechnology, Centre for Drug Design Discovery and Development (C-4D), SRM University, Delhi NCR, Sonepat, Haryana, India
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18
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Jitoboam K, Phaonakrop N, Libsittikul S, Thepparit C, Roytrakul S, Smith DR. Actin Interacts with Dengue Virus 2 and 4 Envelope Proteins. PLoS One 2016; 11:e0151951. [PMID: 27010925 PMCID: PMC4806980 DOI: 10.1371/journal.pone.0151951] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 03/07/2016] [Indexed: 11/18/2022] Open
Abstract
Dengue virus (DENV) remains a significant public health problem in many tropical and sub-tropical countries worldwide. The DENV envelope (E) protein is the major antigenic determinant and the protein that mediates receptor binding and endosomal fusion. In contrast to some other DENV proteins, relatively few cellular interacting proteins have been identified. To address this issue a co-immuoprecipitation strategy was employed. The predominant co-immunoprecipitating proteins identified were actin and actin related proteins, however the results suggested that actin was the only bona fide interacting partner. Actin was shown to interact with the E protein of DENV 2 and 4, and the interaction between actin and DENV E protein was shown to occur in a truncated DENV consisting of only domains I and II. Actin was shown to decrease during infection, but this was not associated with a decrease in gene transcription. Actin-related proteins also showed a decrease in expression during infection that was not transcriptionally regulated. Cytoskeletal reorganization was not observed during infection, suggesting that the interaction between actin and E protein has a cell type specific component.
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Affiliation(s)
- Kunlakanya Jitoboam
- Institute of Molecular Biosciences, Mahidol University, Salaya campus, 25/25 Phuttamonton Sai 4, Salaya, Nakorn Pathom, Thailand
| | - Narumon Phaonakrop
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, 113 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand
| | - Sirikwan Libsittikul
- Institute of Molecular Biosciences, Mahidol University, Salaya campus, 25/25 Phuttamonton Sai 4, Salaya, Nakorn Pathom, Thailand
| | - Chutima Thepparit
- Institute of Molecular Biosciences, Mahidol University, Salaya campus, 25/25 Phuttamonton Sai 4, Salaya, Nakorn Pathom, Thailand
| | - Sittiruk Roytrakul
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, 113 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand
| | - Duncan R. Smith
- Institute of Molecular Biosciences, Mahidol University, Salaya campus, 25/25 Phuttamonton Sai 4, Salaya, Nakorn Pathom, Thailand
- Center for Emerging and Neglected Infectious Diseases, Mahidol University, Salaya campus, 25/25 Phuttamonton Sai 4, Salaya, Nakorn Pathom, Thailand
- * E-mail:
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19
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Foo KY, Chee HY. Interaction between Flavivirus and Cytoskeleton during Virus Replication. BIOMED RESEARCH INTERNATIONAL 2015; 2015:427814. [PMID: 26347881 PMCID: PMC4546964 DOI: 10.1155/2015/427814] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 06/30/2015] [Accepted: 07/28/2015] [Indexed: 12/25/2022]
Abstract
Flaviviruses are potentially human pathogens that cause major epidemics worldwide. Flavivirus interacts with host cell factors to form a favourable virus replication site. Cell cytoskeletons have been observed to have close contact with flaviviruses, which expands the understanding of cytoskeleton functions during virus replication, although many detailed mechanisms are still unclear. The interactions between the virus and host cytoskeletons such as actin filaments, microtubules, and intermediate filaments have provided insight into molecular alterations during the virus infection, such as viral entry, in-cell transport, scaffold assembly, and egress. This review article focuses on the utilization of cytoskeleton by Flavivirus and the respective functions during virus replication.
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Affiliation(s)
- Kar Yue Foo
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Hui-Yee Chee
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
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20
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Castilla V, Piccini LE, Damonte EB. Dengue virus entry and trafficking: perspectives as antiviral target for prevention and therapy. Future Virol 2015. [DOI: 10.2217/fvl.15.35] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
ABSTRACT Dengue virus (DENV) is the etiological agent of the most important human viral infection transmitted by mosquitoes in the world. In spite of the serious health threat that dengue represents, at present there are no vaccine or antiviral agents available and treatment of patients consists of supportive therapy. This review will focus on the process of DENV entry into the host cell as a potential target for antiviral therapy. The recent advances in the knowledge of viral and cellular molecules and mechanisms involved in binding, internalization and trafficking of DENV into the host cell until virion uncoating are discussed, together with an overview of the strategies and compounds evaluated for development of antiviral agents targeted to DENV entry.
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Affiliation(s)
- Viviana Castilla
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IQUIBICEN-CONICET, Ciudad Universitaria, Pabellón 2, Piso 4, 1428 Buenos Aires, Argentina
| | - Luana E Piccini
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IQUIBICEN-CONICET, Ciudad Universitaria, Pabellón 2, Piso 4, 1428 Buenos Aires, Argentina
| | - Elsa B Damonte
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IQUIBICEN-CONICET, Ciudad Universitaria, Pabellón 2, Piso 4, 1428 Buenos Aires, Argentina
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21
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Vervaeke P, Vermeire K, Liekens S. Endothelial dysfunction in dengue virus pathology. Rev Med Virol 2014; 25:50-67. [PMID: 25430853 DOI: 10.1002/rmv.1818] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 10/07/2014] [Accepted: 10/14/2014] [Indexed: 02/04/2023]
Abstract
Dengue virus (DENV) is a leading cause of illness and death, mainly in the (sub)tropics, where it causes dengue fever and/or the more serious diseases dengue hemorrhagic fever and dengue shock syndrome that are associated with changes in vascular permeability. Despite extensive research, the pathogenesis of DENV is still poorly understood and, although endothelial cells represent the primary fluid barrier of the blood vessels, the extent to which these cells contribute to DENV pathology is still under debate. The primary target cells for DENV are dendritic cells and monocytes/macrophages that release various chemokines and cytokines upon infection, which can activate the endothelium and are thought to play a major role in DENV-induced vascular permeability. However, recent studies indicate that DENV also replicates in endothelial cells and that DENV-infected endothelial cells may directly contribute to viremia, immune activation, vascular permeability and immune targeting of the endothelium. Also, the viral non-structural protein-1 and antibodies directed against this secreted protein have been reported to be involved in endothelial cell dysfunction. This review provides an extensive overview of the effects of DENV infection on endothelial cell physiology and barrier function.
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Affiliation(s)
- Peter Vervaeke
- KU Leuven, Rega Institute for Medical Research, Leuven, Belgium
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22
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Jupille H, Vega-Rua A, Rougeon F, Failloux AB. Arboviruses: variations on an ancient theme. Future Virol 2014. [DOI: 10.2217/fvl.14.62] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
ABSTRACT Arboviruses utilize different strategies to complete their transmission cycle between vertebrate and invertebrate hosts. Most possess an RNA genome coupled with an RNA polymerase lacking proofreading activity and generate large populations of genetically distinct variants, permitting rapid adaptation to environmental changes. With mutation rates of between 10- 6 and 10-4 substitutions per nucleotide, arboviral genomes rapidly acquire mutations that can lead to viral emergence. Arboviruses can be described in seven families, four of which have medical importance: Togaviridae, Flaviviridae, Bunyaviridae and Reoviridae. The Togaviridae and Flaviviridae both have ssRNA genomes, while the Bunyaviridae and Reoviridae possess segmented RNA genomes. Recent epidemics caused by these arboviruses have been associated with specific mutations leading to enhanced host ranges, vector shifts and virulence.
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Affiliation(s)
- Henri Jupille
- Department of Virology, Arboviruses & Insect Vectors, 25 Rue du Dr Roux, 75724 Paris Cedex 15, France
| | - Anubis Vega-Rua
- Department of Virology, Arboviruses & Insect Vectors, 25 Rue du Dr Roux, 75724 Paris Cedex 15, France
- Cellule Pasteur UPMC, Université Pierre et Marie Curie, Paris, France
| | | | - Anna-Bella Failloux
- Department of Virology, Arboviruses & Insect Vectors, 25 Rue du Dr Roux, 75724 Paris Cedex 15, France
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Martínez-Betancur V, Marín-Villa M, Martínez-Gutierrez M. Infection of epithelial cells with dengue virus promotes the expression of proteins favoring the replication of certain viral strains. J Med Virol 2013; 86:1448-58. [PMID: 24374781 DOI: 10.1002/jmv.23857] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/30/2013] [Indexed: 11/12/2022]
Abstract
Dengue virus (DENV) is the causative agent of dengue and severe dengue. To understand better the dengue virus-host interaction, it is important to determine how the expression of cellular proteins is modified due to infection. Therefore, a comparison of protein expression was conducted in Vero cells infected with two different DENV strains, both serotype 2: DENV-2/NG (associated with dengue) and DENV-2/16681 (associated with severe dengue). The viability of the infected cells was determined, and neither strain induced cell death at 48 hr. In addition, the viral genomes and infectious viral particles were quantified, and the genome of the DENV-2/16681 strain was determined to have a higher replication rate compared with the DENV-2/NG strain. Finally, the proteins from infected and uninfected cultures were separated using two-dimensional gel electrophoresis, and the differentially expressed proteins were identified by mass spectrometry. Compared with the uninfected controls, the DENV-2/NG- and DENV-2/16681-infected cultures had five and six differentially expressed proteins, respectively. The most important results were observed when the infected cultures were compared to each other (DENV-2/NG vs. DENV-2/16681), and 18 differentially expressed proteins were identified. Based on their cellular functions, many of these proteins were linked to the increase in the replication efficiency of DENV. Among the proteins were calreticulin, acetyl coenzyme A, acetyl transferase, and fatty acid-binding protein. It was concluded that the infection of Vero cells with DENV-2/NG or DENV-2/16681 differentially modifies the expression of certain proteins, which can, in turn, facilitate infection.
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Affiliation(s)
- Viviana Martínez-Betancur
- Programa de Estudio y Control de Enfermedades Tropicales-PECET, Universidad de Antioquia, Medellin, Colombia
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