201
|
Kim YH, Kim TY, Park JS, Park JS, Lee J, Moon J, Chong CK, Junior IN, Ferry FR, Ahn HJ, Bhatt L, Nam HW. Development and Clinical Evaluation of a Rapid Diagnostic Test for Yellow Fever Non-Structural Protein 1. THE KOREAN JOURNAL OF PARASITOLOGY 2019; 57:283-290. [PMID: 31284351 PMCID: PMC6616167 DOI: 10.3347/kjp.2019.57.3.283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 06/16/2019] [Indexed: 11/23/2022]
Abstract
A rapid diagnostic test (RDT) kit was developed to detect non-structural protein 1 (NS1) of yellow fever virus (YFV) using monoclonal antibody. NS1 protein was purified from the cultured YFV and used to immunize mice. Monoclonal antibody to NS1 was selected and conjugated with colloidal gold to produce the YFV NS1 RDT kit. The YFV RDTs were evaluated for sensitivity and specificity using positive and negative samples of monkeys from Brazil and negative human blood samples from Korea. Among monoclonal antibodies, clones 3A11 and 3B7 proved most sensitive, and used for YFV RDT kit. Diagnostic accuracy of YFV RDT was fairly high; Sensitivity was 0.0% and specificity was 100% against Dengue viruses type 2 and 3, Zika, Chikungunya and Mayaro viruses. This YFV RDT kit could be employed as a test of choice for point-of-care diagnosis and large scale surveys of YFV infection under clinical or field conditions in endemic areas and on the globe.
Collapse
Affiliation(s)
- Yeong Hoon Kim
- Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | | | | | | | | | | | | | - Ivan Neves Junior
- Gafreé and Guinle University Hospital of the Federal University of Rio de Janeiro, Del Castilho, Rio de Janeiro, Brazil
| | - Fernando Raphael Ferry
- Gafreé and Guinle University Hospital of the Federal University of Rio de Janeiro, Del Castilho, Rio de Janeiro, Brazil
| | - Hye-Jin Ahn
- Department of Parasitology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Lokraj Bhatt
- Department of Parasitology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Ho-Woo Nam
- Department of Parasitology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| |
Collapse
|
202
|
Shaily S, Upadhya A. Zika virus: Molecular responses and tissue tropism in the mammalian host. Rev Med Virol 2019; 29:e2050. [PMID: 31095819 DOI: 10.1002/rmv.2050] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 03/29/2019] [Accepted: 04/01/2019] [Indexed: 12/15/2022]
Abstract
Zika virus (ZIKV) outbreaks have raised alarm because of reports of congenital Zika virus syndrome in infants. The virus is also known to cause the debilitating Guillain-Barré syndrome in adults. As a result, extensive research has been carried out on the virus over the past few years. To study the molecular responses of viral infectivity in mammals, in vitro two-dimensional and three-dimensional cellular models have been employed. The in vivo models of mouse, pig, chicken, and nonhuman primates are primarily used to investigate the teratogenicity of the virus, to study effects of the virus on specific tissues, and to study the systemic effects of a proposed antiviral agent. The virus exhibits wide tissue tropism in the mammalian host. The major host tissues of viral persistence and propagation are neural tissue, ocular tissue, testicular tissue and placental tissue. An understanding of the function of viral components, viral replication cycle, and the molecular responses elicited in the host tissues is imperative for designing antiviral treatment strategies and for development of vaccines. This review provides an update on ZIKV research models and mammalian host responses with respect to ZIKV tissue infection.
Collapse
Affiliation(s)
- Sangya Shaily
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM'S NMIMS, Mumbai, India
| | - Archana Upadhya
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM'S NMIMS, Mumbai, India
| |
Collapse
|
203
|
Płaszczyca A, Scaturro P, Neufeldt CJ, Cortese M, Cerikan B, Ferla S, Brancale A, Pichlmair A, Bartenschlager R. A novel interaction between dengue virus nonstructural protein 1 and the NS4A-2K-4B precursor is required for viral RNA replication but not for formation of the membranous replication organelle. PLoS Pathog 2019; 15:e1007736. [PMID: 31071189 PMCID: PMC6508626 DOI: 10.1371/journal.ppat.1007736] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 03/27/2019] [Indexed: 12/17/2022] Open
Abstract
Dengue virus (DENV) has emerged as major human pathogen. Despite the serious socio-economic impact of DENV-associated diseases, antiviral therapy is missing. DENV replicates in the cytoplasm of infected cells and induces a membranous replication organelle, formed by invaginations of the endoplasmic reticulum membrane and designated vesicle packets (VPs). Nonstructural protein 1 (NS1) of DENV is a multifunctional protein. It is secreted from cells to counteract antiviral immune responses, but also critically contributes to the severe clinical manifestations of dengue. In addition, NS1 is indispensable for viral RNA replication, but the underlying molecular mechanism remains elusive. In this study, we employed a combination of genetic, biochemical and imaging approaches to dissect the determinants in NS1 contributing to its various functions in the viral replication cycle. Several important observations were made. First, we identified a cluster of amino acid residues in the exposed region of the β-ladder domain of NS1 that are essential for NS1 secretion. Second, we revealed a novel interaction of NS1 with the NS4A-2K-4B cleavage intermediate, but not with mature NS4A or NS4B. This interaction is required for RNA replication, with two residues within the connector region of the NS1 “Wing” domain being crucial for binding of the NS4A-2K-4B precursor. By using a polyprotein expression system allowing the formation of VPs in the absence of viral RNA replication, we show that the NS1 –NS4A-2K-4B interaction is not required for VP formation, arguing that the association between these two proteins plays a more direct role in the RNA amplification process. Third, through analysis of polyproteins containing deletions in NS1, and employing a trans-complementation assay, we show that both cis and trans acting elements within NS1 contribute to VP formation, with the capability of NS1 mutants to form VPs correlating with their capability to support RNA replication. In conclusion, these results reveal a direct role of NS1 in VP formation that is independent from RNA replication, and argue for a critical function of a previously unrecognized NS4A-2K-NS4B precursor specifically interacting with NS1 and promoting viral RNA replication. Dengue virus (DENV) is one of the most prevalent mosquito-transmitted human pathogens. The only licensed vaccine has limited efficacy and an antiviral therapy is not available. The multifunctional non-structural protein 1 (NS1) of DENV is secreted from infected cells, counteracts antiviral immune response and contributes to the pathogenesis of DENV infection. In addition, NS1 is essential for the viral replication cycle but the underlying mechanism is unknown. Here we determined the viral interactome of NS1 and identified a novel interaction of NS1 with the NS4A-2K-4B cleavage intermediate, but not with NS4A and NS4B. This interaction is required for RNA replication. Additionally, we identified a domain in NS1 important for efficient secretion of this protein. Finally, we demonstrate that NS1 is required for the biogenesis of the membranous DENV replication organelle. This function does not require RNA replication and is independent from NS1 interaction with NS4A-2K-4B. Our results provide new insights into the role of NS1 in DENV RNA replication and establish a genetic map of residues in NS1 required for the diverse functions of this protein. These results should aid in the design of antiviral strategies targeting NS1, with the aim to suppress viral replication as well as severe disease manifestations.
Collapse
Affiliation(s)
- Anna Płaszczyca
- Department of Infectious Diseases, Molecular Virology, University of Heidelberg, Heidelberg, Germany
| | - Pietro Scaturro
- Max-Planck Institute of Biochemistry, Innate Immunity Laboratory, Martinsried, Germany
- School of Medicine, Institute of Virology, Technical University of Munich, Munich, Germany
| | - Christopher John Neufeldt
- Department of Infectious Diseases, Molecular Virology, University of Heidelberg, Heidelberg, Germany
| | - Mirko Cortese
- Department of Infectious Diseases, Molecular Virology, University of Heidelberg, Heidelberg, Germany
| | - Berati Cerikan
- Department of Infectious Diseases, Molecular Virology, University of Heidelberg, Heidelberg, Germany
| | - Salvatore Ferla
- School of Pharmacy & Pharmaceutical Sciences, Cardiff University, Cardiff, United Kingdom
| | - Andrea Brancale
- School of Pharmacy & Pharmaceutical Sciences, Cardiff University, Cardiff, United Kingdom
| | - Andreas Pichlmair
- Max-Planck Institute of Biochemistry, Innate Immunity Laboratory, Martinsried, Germany
- School of Medicine, Institute of Virology, Technical University of Munich, Munich, Germany
- German Center for Infection Research (DZIF), Munich Partner Site, Munich, Germany
| | - Ralf Bartenschlager
- Department of Infectious Diseases, Molecular Virology, University of Heidelberg, Heidelberg, Germany
- German Center for Infection Research (DZIF), Heidelberg Partner Site, Heidelberg, Germany
- * E-mail:
| |
Collapse
|
204
|
Ravichandran S, Hahn M, Belaunzarán-Zamudio PF, Ramos-Castañeda J, Nájera-Cancino G, Caballero-Sosa S, Navarro-Fuentes KR, Ruiz-Palacios G, Golding H, Beigel JH, Khurana S. Differential human antibody repertoires following Zika infection and the implications for serodiagnostics and disease outcome. Nat Commun 2019; 10:1943. [PMID: 31028263 PMCID: PMC6486612 DOI: 10.1038/s41467-019-09914-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 04/08/2019] [Indexed: 12/21/2022] Open
Abstract
Zika virus (ZIKV) outbreak in Americas led to extensive efforts to develop vaccines and ZIKV-specific diagnostics. In the current study, we use whole genome phage display library spanning the entire ZIKV genome (ZIKV-GFPDL) for in-depth immune profiling of IgG and IgM antibody repertoires in serum and urine longitudinal samples from individuals acutely infected with ZIKV. We observe a very diverse IgM immune repertoire encompassing the entire ZIKV polyprotein on day 0 in both serum and urine. ZIKV-specific IgG antibodies increase 10-fold between day 0 and day 7 in serum, but not in urine; these are highly focused on prM/E, NS1 and NS2B. Differential antibody affinity maturation is observed against ZIKV structural E protein compared with nonstructural protein NS1. Serum antibody affinity to ZIKV-E protein inversely correlates with ZIKV disease symptoms. Our study provides insight into unlinked evolution of immune response to ZIKV infection and identified unique targets for ZIKV serodiagnostics.
Collapse
Affiliation(s)
- Supriya Ravichandran
- Division of Viral Products, Center for Biologics Evaluation and Research (CBER), FDA, Silver Spring, MD, 20993, USA
| | - Megan Hahn
- Division of Viral Products, Center for Biologics Evaluation and Research (CBER), FDA, Silver Spring, MD, 20993, USA
| | - Pablo F Belaunzarán-Zamudio
- Departamento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, 14080, Mexico
| | | | | | - Sandra Caballero-Sosa
- Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Tapachula, 30740, Chiapas, Mexico
| | | | - Guillermo Ruiz-Palacios
- Comisión Coordinadora de los Institutos Nacionales de Salud y Hospitales de Alta Especialidad, Ministry of Health, Mexico City, 14080, Mexico
| | - Hana Golding
- Division of Viral Products, Center for Biologics Evaluation and Research (CBER), FDA, Silver Spring, MD, 20993, USA
| | - John H Beigel
- Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD, 21701, USA
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20852, USA
| | - Surender Khurana
- Division of Viral Products, Center for Biologics Evaluation and Research (CBER), FDA, Silver Spring, MD, 20993, USA.
| |
Collapse
|
205
|
Chao CH, Wu WC, Lai YC, Tsai PJ, Perng GC, Lin YS, Yeh TM. Dengue virus nonstructural protein 1 activates platelets via Toll-like receptor 4, leading to thrombocytopenia and hemorrhage. PLoS Pathog 2019; 15:e1007625. [PMID: 31009511 PMCID: PMC6497319 DOI: 10.1371/journal.ppat.1007625] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 05/02/2019] [Accepted: 02/07/2019] [Indexed: 12/12/2022] Open
Abstract
Dengue virus (DENV) infection, the most common mosquito-transmitted viral infection, can cause a range of diseases from self-limiting dengue fever to life-threatening dengue hemorrhagic fever and shock syndrome. Thrombocytopenia is a major characteristic observed in both mild and severe dengue disease and is significantly correlated with the progression of dengue severity. Previous studies have shown that DENV nonstructural protein 1 (NS1), which can be secreted into patients’ blood, can stimulate immune cells via Toll-like receptor 4 (TLR4) and can cause endothelial leakage. However, it is unclear whether DENV NS1 can directly induce platelet activation or cause thrombocytopenia during DENV infection. In this study, we first demonstrated that DENV but not Zika virus cell culture supernatant could induce P-selectin expression and phosphatidylserine (PS) exposure in human platelets, both of which were abolished when NS1 was depleted from the DENV supernatant. Similar results were found using recombinant NS1 from all four serotypes of DENV, and those effects were blocked in the presence of anti-NS1 F(ab’)2, anti-TLR4 antibody, a TLR4 antagonist (Rhodobacter sphaeroides lipopolysaccharide, LPS-Rs) and a TLR4 signaling inhibitor (TAK242), but not polymyxin B (an LPS inhibitor). Moreover, the activation of platelets by DENV NS1 promoted subthreshold concentrations of adenosine diphosphate (ADP)-induced platelet aggregation and enhanced platelet adhesion to endothelial cells and phagocytosis by macrophages. Finally, we demonstrated that DENV-induced thrombocytopenia and hemorrhage were attenuated in TLR4 knockout and wild-type mice when NS1 was depleted from DENV supernatant. Taken together, these results suggest that the binding of DENV NS1 to TLR4 on platelets can trigger its activation, which may contribute to thrombocytopenia and hemorrhage during dengue infection. Over the past 50 years, dengue has been a continuing global threat, with no effective vaccine or specific antiviral drug. Dengue infection causes a wide range of outcomes, from fever-like symptoms to severe dengue hemorrhagic fever. Thrombocytopenia, a reduction in platelet count, is a common feature observed in both mild and severe dengue and is correlated with disease severity. In this study, we used dengue viral supernatant or DENV recombinant NS1 protein to stimulate human-isolated platelets. We found that DENV NS1 could directly activate platelets through TLR4 and could further enhance platelet aggregation, adhesion to endothelial cells and phagocytosis by macrophages, which could lead to thrombocytopenia. We also proved that both NS1 and TLR4 are critical for DENV-induced thrombocytopenia and hemorrhage using a DENV-induced hemorrhagic mouse model. Our study reveals a new pathogenic role of NS1 during dengue infection and highlights that NS1 should be a topic of attention in the development of therapeutic drugs and vaccines against dengue infection.
Collapse
Affiliation(s)
- Chiao-Hsuan Chao
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wei-Chueh Wu
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yen-Chung Lai
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Pei-Jane Tsai
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Guey-Chuen Perng
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yee-Shin Lin
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Trai-Ming Yeh
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- * E-mail:
| |
Collapse
|
206
|
Zhou D, Pei C, Yang K, Ye J, Wan S, Li Q, Zhang L, Chen H, Cao S, Song Y. Development and application of a monoclonal-antibody-based blocking ELISA for detection of Japanese encephalitis virus NS1 antibodies in swine. Arch Virol 2019; 164:1535-1542. [PMID: 30900070 DOI: 10.1007/s00705-019-04218-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 01/18/2019] [Indexed: 11/24/2022]
Abstract
Japanese encephalitis virus (JEV) is a zoonotic pathogen transmitted by Culex mosquitoes and is the leading cause of viral encephalitis in humans. JEV infection of swine, which are the main amplifying hosts for JEV, can cause reproductive failure in sows; in boars it can cause testitis and infertility. The prevalence of JEV in swine is a continuous threat to human health. A practical diagnostic method for monitoring JEV infection in swine herds is essential for control of the disease in both swine and humans. Here, we have identified a high-affinity anti-JEV NS1 monoclonal antibody (mAb) by indirect ELISA and utilized it for the development of a blocking ELISA (bELISA). The optimal NS1 protein coating concentration (2 μg/mL) and mAb working concentration (1 μg/mL) were determined by checkerboard titration. One hundred ten JEV-antibody-negative serum samples were used to establish 34.03% inhibition as the cutoff value for a negative result. By the bELISA, seroconversion in 80% of newly JEV-vaccinated pigs was detected by 7 days post-immunization, while by the commercial envelope-protein-based iELISA, seroconversion was detected in 20% of the newly vaccinated pigs. We found 98.7% agreement between the bELISA and the commercial iELISA when we tested 157 field samples using both methods. From an epidemiological survey of swine serum collected between 2014 and 2016, we found that the average JEV seropositive rate in unvaccinated commodity pigs was 8.1%, and in vaccinated boars and sows, it was 67.6%.
Collapse
Affiliation(s)
- Dengyuan Zhou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Chao Pei
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Kelu Yang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Jing Ye
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Shengfeng Wan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Qiuyan Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Luping Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Huanchun Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Shengbo Cao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Yunfeng Song
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China. .,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China. .,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China.
| |
Collapse
|
207
|
Multiplex targeted mass spectrometry assay for one-shot flavivirus diagnosis. Proc Natl Acad Sci U S A 2019; 116:6754-6759. [PMID: 30886083 DOI: 10.1073/pnas.1817867116] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Targeted proteomic mass spectrometry is emerging as a salient clinical diagnostic tool to track protein biomarkers. However, its strong analytical properties have not been exploited in the diagnosis and typing of flaviviruses. Here, we report the development of a sensitive and specific single-shot robust assay for flavivirus typing and diagnosis using targeted mass spectrometry technology. Our flavivirus parallel reaction monitoring assay (fvPRM) has the ability to track secreted flaviviral nonstructural protein 1 (NS1) over a broad diagnostic and typing window with high sensitivity, specificity, extendibility, and multiplexing capability. These features, pivotal and pertinent to efficient response toward flavivirus outbreaks, including newly emerging flavivirus strains, circumvent the limitations of current diagnostic assays. fvPRM thus carries high potential in positioning itself as a forerunner in delivering early and accurate diagnosis for disease management.
Collapse
|
208
|
Rosales Ramirez R, Ludert JE. The Dengue Virus Nonstructural Protein 1 (NS1) Is Secreted from Mosquito Cells in Association with the Intracellular Cholesterol Transporter Chaperone Caveolin Complex. J Virol 2019; 93:e01985-18. [PMID: 30463973 PMCID: PMC6364000 DOI: 10.1128/jvi.01985-18] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 11/10/2018] [Indexed: 12/16/2022] Open
Abstract
Dengue virus (DENV) is a mosquito-borne virus of the family Flaviviridae The RNA viral genome encodes three structural and seven nonstructural proteins. Nonstructural protein 1 (NS1) is a multifunctional protein actively secreted in vertebrate and mosquito cells during infection. In mosquito cells, NS1 is secreted in a caveolin-1-dependent manner by an unconventional route. The caveolin chaperone complex (CCC) is a cytoplasmic complex formed by caveolin-1 and the chaperones FKBP52, Cy40, and CyA and is responsible for the cholesterol traffic inside the cell. In this work, we demonstrate that in mosquito cells, but not in vertebrate cells, NS1 associates with and relies on the CCC for secretion. Treatment of mosquito cells with classic secretion inhibitors, such as brefeldin A, Golgicide A, and Fli-06, showed no effect on NS1 secretion but significant reductions in recombinant luciferase secretion and virion release. Silencing the expression of CAV-1 or FKBP52 with short interfering RNAs or the inhibition of CyA by cyclosporine resulted in significant decrease in NS1 secretion, again without affecting virion release. Colocalization, coimmunoprecipitation, and proximity ligation assays indicated that NS1 colocalizes and interacts with all proteins of the CCC. In addition, CAV-1 and FKBP52 expression was found augmented in DENV-infected cells. Results obtained with Zika virus-infected cells suggest that in mosquito cells, ZIKV NS1 follows the same secretory pathway as that observed for DENV NS1. These results uncover important differences in the dengue virus-cell interactions between the vertebrate host and the mosquito vector as well as novel functions for the chaperone caveolin complex.IMPORTANCE The dengue virus protein NS1 is secreted efficiently from both infected vertebrate and mosquito cells. Previously, our group reported that NS1 secretion in mosquito cells follows an unconventional secretion pathway dependent on caveolin-1. In this work, we demonstrate that in mosquito cells, but not in vertebrate cells, NS1 secretion takes place in association with the chaperone caveolin complex, a complex formed by caveolin-1 and the chaperones FKBP52, CyA, and Cy40, which are in charge of cholesterol transport inside the cell. Results obtained with ZIKV-infected mosquito cells suggest that ZIKV NS1 is released following an unconventional secretory route in association with the chaperone caveolin complex. These results uncover important differences in the virus-cell interactions between the vertebrate host and the mosquito vector, as well as novel functions for the chaperone caveolin complex. Moreover, manipulation of the NS1 secretory route may prove a valuable strategy to combat these two mosquito-borne diseases.
Collapse
Affiliation(s)
- Romel Rosales Ramirez
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Juan E Ludert
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| |
Collapse
|
209
|
Redwan EM, AlJaddawi AA, Uversky VN. Structural disorder in the proteome and interactome of Alkhurma virus (ALKV). Cell Mol Life Sci 2019; 76:577-608. [PMID: 30443749 PMCID: PMC7079808 DOI: 10.1007/s00018-018-2968-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/30/2018] [Accepted: 11/05/2018] [Indexed: 12/13/2022]
Abstract
Infection by the Alkhurma virus (ALKV) leading to the Alkhurma hemorrhagic fever is a common thread in Saudi Arabia, with no efficient treatment or prevention available as of yet. Although the rational drug design traditionally uses information on known 3D structures of viral proteins, intrinsically disordered proteins (i.e., functional proteins that do not possess unique 3D structures), with their multitude of disorder-dependent functions, are crucial for the biology of viruses. Here, viruses utilize disordered regions in their invasion of the host organisms and in hijacking and repurposing of different host systems. Furthermore, the ability of viruses to efficiently adjust and accommodate to their hostile habitats is also intrinsic disorder-dependent. However, little is currently known on the level of penetrance and functional utilization of intrinsic disorder in the ALKV proteome. To fill this gap, we used here multiple computational tools to evaluate the abundance of intrinsic disorder in the ALKV genome polyprotein. We also analyzed the peculiarities of intrinsic disorder predisposition of the individual viral proteins, as well as human proteins known to be engaged in interaction with the ALKV proteins. Special attention was paid to finding a correlation between protein functionality and structural disorder. To the best of our knowledge, this work represents the first systematic study of the intrinsic disorder status of ALKV proteome and interactome.
Collapse
Affiliation(s)
- Elrashdy M Redwan
- Department of Biological Sciences, Faculty of Sciences, King Abdulaziz University, P.O. Box 80203, Jeddah, Saudi Arabia.
| | - Abdullah A AlJaddawi
- Department of Biological Sciences, Faculty of Sciences, King Abdulaziz University, P.O. Box 80203, Jeddah, Saudi Arabia
| | - Vladimir N Uversky
- Department of Biological Sciences, Faculty of Sciences, King Abdulaziz University, P.O. Box 80203, Jeddah, Saudi Arabia.
- Department of Molecular Medicine and USF Health Byrd Alzheimer's Research Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
- Laboratory of New Methods in Biology, Institute for Biological Instrumentation, Russian Academy of Sciences, Pushchino, 142290, Moscow Region, Russia.
| |
Collapse
|
210
|
Chura-Chambi RM, da Silva CMR, Pereira LR, Bartolini P, Ferreira LCDS, Morganti L. Protein refolding based on high hydrostatic pressure and alkaline pH: Application on a recombinant dengue virus NS1 protein. PLoS One 2019; 14:e0211162. [PMID: 30682103 PMCID: PMC6347194 DOI: 10.1371/journal.pone.0211162] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 01/08/2019] [Indexed: 12/13/2022] Open
Abstract
In this study we evaluated the association of high hydrostatic pressure (HHP) and alkaline pH as a minimally denaturing condition for the solubilization of inclusion bodies (IBs) generated by recombinant proteins expressed by Escherichia coli strains. The method was successfully applied to a recombinant form of the dengue virus (DENV) non-structural protein 1 (NS1). The minimal pH for IBs solubilization at 1 bar was 12 while a pH of 10 was sufficient for solubilization at HHP: 2.4 kbar for 90 min and 0.4 kbar for 14 h 30 min. An optimal refolding condition was achieved by compression of IBs at HHP and pH 10.5 in the presence of arginine, oxidized and reduced glutathiones, providing much higher yields (up to 8-fold) than association of HHP and GdnHCl via an established protocol. The refolded NS1, 109 ± 9.5 mg/L bacterial culture was recovered mainly as monomer and dimer, corresponding up to 90% of the total protein and remaining immunologically active. The proposed conditions represent an alternative for the refolding of immunologically active recombinant proteins expressed as IBs.
Collapse
Affiliation(s)
- Rosa Maria Chura-Chambi
- Centro de Biotecnologia, Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, São Paulo, São Paulo, Brazil
| | - Cleide Mara Rosa da Silva
- Centro de Biotecnologia, Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, São Paulo, São Paulo, Brazil
| | - Lennon Ramos Pereira
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Paolo Bartolini
- Centro de Biotecnologia, Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, São Paulo, São Paulo, Brazil
| | - Luis Carlos de Souza Ferreira
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Ligia Morganti
- Centro de Biotecnologia, Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, São Paulo, São Paulo, Brazil
- * E-mail:
| |
Collapse
|
211
|
Walker CL, Little MTE, Roby JA, Armistead B, Gale M, Rajagopal L, Nelson BR, Ehinger N, Mason B, Nayeri U, Curry CL, Adams Waldorf KM. Zika virus and the nonmicrocephalic fetus: why we should still worry. Am J Obstet Gynecol 2019; 220:45-56. [PMID: 30171843 PMCID: PMC6501788 DOI: 10.1016/j.ajog.2018.08.035] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 08/12/2018] [Accepted: 08/21/2018] [Indexed: 02/06/2023]
Abstract
Zika virus is a mosquito-transmitted flavivirus and was first linked to congenital microcephaly caused by a large outbreak in northeastern Brazil. Although the Zika virus epidemic is now in decline, pregnancies in large parts of the Americas remain at risk because of ongoing transmission and the potential for new outbreaks. This review presents why Zika virus is still a complex and worrisome public health problem with an expanding spectrum of birth defects and how Zika virus and related viruses evade the immune response to injure the fetus. Recent reports indicate that the spectrum of fetal brain and other anomalies associated with Zika virus exposure is broader and more complex than microcephaly alone and includes subtle fetal brain and ocular injuries; thus, the ability to prenatally diagnose fetal injury associated with Zika virus infection remains limited. New studies indicate that Zika virus imparts disproportionate effects on fetal growth with an unusual femur-sparing profile, potentially providing a new approach to identify viral injury to the fetus. Studies to determine the limitations of prenatal and postnatal testing for detection of Zika virus-associated birth defects and long-term neurocognitive deficits are needed to better guide women with a possible infectious exposure. It is also imperative that we investigate why the Zika virus is so adept at infecting the placenta and the fetal brain to better predict other viruses with similar capabilities that may give rise to new epidemics. The efficiency with which the Zika virus evades the early immune response to enable infection of the mother, placenta, and fetus is likely critical for understanding why the infection may either be fulminant or limited. Furthermore, studies suggest that several emerging and related viruses may also cause birth defects, including West Nile virus, which is endemic in many parts of the United States. With mosquito-borne diseases increasing worldwide, there remains an urgent need to better understand the pathogenesis of the Zika virus and related viruses to protect pregnancies and child health.
Collapse
Affiliation(s)
- Christie L Walker
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, University of Washington, Seattle, WA
| | - Marie-Térèse E Little
- Fourth Dimension Biomedical and Research Consulting, Victoria, British Columbia, Canada
| | - Justin A Roby
- Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington, Seattle, WA
| | - Blair Armistead
- Department of Global Health, University of Washington, Seattle, WA; Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA
| | - Michael Gale
- Center for Innate Immunity and Immune Disease, Departments of Immunology, Microbiology, and Global Health, University of Washington, Seattle, WA
| | - Lakshmi Rajagopal
- Center for Innate Immunity and Immune Disease, Department of Pediatrics, University of Washington, Seattle, WA; Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA
| | - Branden R Nelson
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA
| | - Noah Ehinger
- Department of Obstetrics and Gynecology, University of Miami, Miami, FL
| | - Brittney Mason
- Department of Obstetrics and Gynecology, University of Miami, Miami, FL
| | - Unzila Nayeri
- Department of Obstetrics and Gynecology, University of Miami, Miami, FL
| | - Christine L Curry
- Department of Obstetrics and Gynecology, University of Miami, Miami, FL
| | - Kristina M Adams Waldorf
- Department of Obstetrics and Gynecology and Global Health, University of Washington, Seattle, WA; Center for Innate Immunity and Immune Disease, University of Washington, Seattle, WA; Sahlgrenska Academy, Gothenburg University, Gothenburg Sweden.
| |
Collapse
|
212
|
Ahmad Z, Poh CL. The Conserved Molecular Determinants of Virulence in Dengue Virus. Int J Med Sci 2019; 16:355-365. [PMID: 30911269 PMCID: PMC6428985 DOI: 10.7150/ijms.29938] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 12/17/2018] [Indexed: 12/22/2022] Open
Abstract
Dengue virus belongs to the Flaviviridae family which also includes viruses such as the Zika, West Nile and yellow fever virus. Dengue virus generally causes mild disease, however, more severe forms of the dengue virus infection, dengue haemorrhagic fever (DHF) and dengue haemorrhagic fever with shock syndrome (DSS) can also occur, resulting in multiple organ failure and even death, especially in children. The only dengue vaccine available in the market, CYD-TDV offers limited coverage for vaccinees from 9-45 years of age and is only recommended for individuals with prior dengue exposure. A number of mutations that were shown to attenuate virulence of dengue virus in vitro and/or in vivo have been identified in the literature. The mutations which fall within the conserved regions of all four dengue serotypes are discussed. This review hopes to provide information leading to the construction of a live attenuated dengue vaccine that is suitable for all ages, irrespective of the infecting dengue serotype and prior dengue exposure.
Collapse
Affiliation(s)
- Zuleeza Ahmad
- Centre for Virus and Vaccine Research, School of Science and Technology, Sunway University, 47500 Subang Jaya, Selangor, Malaysia
| | - Chit Laa Poh
- Centre for Virus and Vaccine Research, School of Science and Technology, Sunway University, 47500 Subang Jaya, Selangor, Malaysia
| |
Collapse
|
213
|
Marques LÉC, Silva BB, Dutra RF, Florean EOPT, Menassa R, Guedes MIF. Transient Expression of Dengue Virus NS1 Antigen in Nicotiana benthamiana for Use as a Diagnostic Antigen. FRONTIERS IN PLANT SCIENCE 2019; 10:1674. [PMID: 32010161 PMCID: PMC6976532 DOI: 10.3389/fpls.2019.01674] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 11/28/2019] [Indexed: 05/08/2023]
Abstract
Dengue is a viral disease that represents a significant threat to global public health since billions of people are now at risk of infection by this mosquito-borne virus. The implementation of extensive screening tests is indispensable to control this disease, and the Dengue virus non-structural protein 1 (NS1) is a promising antigen for the serological diagnosis of dengue fever. Plant-based systems can be a safe and cost-effective alternative for the production of dengue virus antigens. In this work, two strategies to produce the dengue NS1 protein in Nicotiana benthamiana leaves were evaluated: Targeting NS1 to five different subcellular compartments to assess the best subcellular organelle for the expression and accumulation of NS1, and the addition of elastin-like polypeptide (ELP) or hydrophobin (HFBI) fusion tags to NS1. The transiently expressed proteins in N. benthamiana were quantified by Western blot analysis. The NS1 fused to ELP and targeted to the ER (NS1 ELP-ER) showed the highest yield (445 mg/kg), approximately a forty-fold increase in accumulation levels compared to the non-fused protein (NS1-ER), representing the first example of transient expression of DENV NS1 in plant. We also demonstrated that NS1 ELP-ER was successfully recognized by a monoclonal anti-dengue virus NS1 glycoprotein antibody, and by sera from dengue virus-infected patients. Interestingly, it was found that transient production of NS1-ER and NS1 ELP-ER using vacuum infiltration of whole plants, which is easier to scale up, rather than syringe infiltration of leaves, greatly improved the accumulation of NS1 proteins. The generated plant made NS1, even without extensive purification, showed potential to be used for the development of the NS1 diagnostic tests in resource-limited areas where dengue is endemic.
Collapse
Affiliation(s)
- Lívia É. C. Marques
- Laboratory of Biotechnology and Molecular Biology, Health Sciences Center, State University of Ceara, Fortaleza, Brazil
- *Correspondence: Lívia É. C. Marques,
| | - Bruno B. Silva
- Laboratory of Biotechnology and Molecular Biology, Health Sciences Center, State University of Ceara, Fortaleza, Brazil
| | - Rosa Fireman Dutra
- Department of Biomedical Engineering, Biomedical Engineering Laboratory, Federal University of Pernambuco, Recife, Brazil
| | | | - Rima Menassa
- Agriculture and Agri-Food Canada, London Research and Development Centre, London, ON, Canada
| | - Maria Izabel F. Guedes
- Laboratory of Biotechnology and Molecular Biology, Health Sciences Center, State University of Ceara, Fortaleza, Brazil
| |
Collapse
|
214
|
Shriver-Lake LC, Liu JL, Zabetakis D, Sugiharto VA, Lee CR, Defang GN, Wu SJL, Anderson GP, Goldman ER. Selection and Characterization of Anti-Dengue NS1 Single Domain Antibodies. Sci Rep 2018; 8:18086. [PMID: 30591706 PMCID: PMC6308234 DOI: 10.1038/s41598-018-35923-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 11/13/2018] [Indexed: 01/13/2023] Open
Abstract
Reliable detection and diagnosis of dengue virus (DENV) is important for both patient care and epidemiological control. Starting with a llama immunized with a mixture of recombinant nonstructural protein 1 (NS1) antigen from the four DENV serotypes, a phage display immune library of single domain antibodies was constructed and binders selected which exhibited specificity and affinity for DENV NS1. Each of these single domain antibodies was evaluated for its binding affinity to NS1 from the four serotypes, and incorporated into a sandwich format for NS1 detection. An optimal pair was chosen that provided the best combination of sensitivity for all four DENV NS1 antigens spiked into 50% human serum while showing no cross reactivity to NS1 from Zika virus, yellow fever virus, tick-borne encephalitis virus, and minimal binding to NS1 from Japanese encephalitis virus and West Nile virus. These rugged and robust recombinant binding molecules offer attractive alternatives to conventional antibodies for implementation into immunoassays destined for resource limited locals.
Collapse
Affiliation(s)
- Lisa C Shriver-Lake
- Center for Biomolecular Science and Engineering, US Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC, 20375, USA
| | - Jinny L Liu
- Center for Biomolecular Science and Engineering, US Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC, 20375, USA
| | - Dan Zabetakis
- Center for Biomolecular Science and Engineering, US Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC, 20375, USA
| | - Victor A Sugiharto
- Viral and Rickettsial Diseases Department, Naval Medical Research Center, 503 Robert Grant Avenue, Silver Spring, MD, 20910, USA
| | - Cheng-Rei Lee
- Viral and Rickettsial Diseases Department, Naval Medical Research Center, 503 Robert Grant Avenue, Silver Spring, MD, 20910, USA
| | - Gabriel N Defang
- Viral and Rickettsial Diseases Department, Naval Medical Research Center, 503 Robert Grant Avenue, Silver Spring, MD, 20910, USA
| | - Shuenn-Jue L Wu
- Viral and Rickettsial Diseases Department, Naval Medical Research Center, 503 Robert Grant Avenue, Silver Spring, MD, 20910, USA
| | - George P Anderson
- Center for Biomolecular Science and Engineering, US Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC, 20375, USA
| | - Ellen R Goldman
- Center for Biomolecular Science and Engineering, US Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC, 20375, USA.
| |
Collapse
|
215
|
Gonçalves BDS, Horta MAP, Acero PHC, Bochner R, Queiroz Lima MDR, de Araújo ES, Sampaio SA, Nogueira RMR, de Filippis AMB. Dynamics of nonstructural glycoprotein-1 in dengue patients presenting with different clinical manifestations from 1986 to 2012 in Rio de Janeiro, Brazil. J Med Virol 2018; 91:555-563. [DOI: 10.1002/jmv.25356] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 11/06/2018] [Indexed: 01/12/2023]
Affiliation(s)
| | | | | | - Rosany Bochner
- Laboratory of Scientific and Technological Information in Health; Institute of Communication and Scientific and Technological Information in Health/ FIOCRUZ; Rio de Janeiro Brazil
| | | | | | | | | | | |
Collapse
|
216
|
Japanese Encephalitis Virus NS1' Protein Antagonizes Interferon Beta Production. Virol Sin 2018; 33:515-523. [PMID: 30542978 DOI: 10.1007/s12250-018-0067-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 11/07/2018] [Indexed: 12/13/2022] Open
Abstract
Japanese encephalitis virus (JEV) is a mosquito-borne virus and the major cause of viral encephalitis in Asia. NS1', a 52-amino acid C-terminal extension of NS1, is generated with a -1 programmed ribosomal frameshift and is only present in members of the Japanese encephalitis serogroup of flaviviruses. Previous studies demonstrated that NS1' plays a vital role in virulence, but the mechanism is unclear. In this study, an NS1' defected (rG66A) virus was generated. We found that rG66A virus was less virulent than its parent virus (pSA14) in wild-type mice. However, similar mortality caused by the two viruses was observed in an IFNAR knockout mouse model. Moreover, we found that rG66A virus induced a greater type I interferon (IFN) response than that by pSA14, and JEV NS1' significantly inhibited the production of IFN-β and IFN-stimulated genes. Taken together, our results reveal that NS1' plays a vital role in blocking type I IFN production to help JEV evade antiviral immunity and benefit viral replication.
Collapse
|
217
|
Rosa da Silva CM, Chura-Chambi RM, Ramos Pereira L, Cordeiro Y, de Souza Ferreira LC, Morganti L. Association of high pressure and alkaline condition for solubilization of inclusion bodies and refolding of the NS1 protein from zika virus. BMC Biotechnol 2018; 18:78. [PMID: 30541520 PMCID: PMC6291932 DOI: 10.1186/s12896-018-0486-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 11/23/2018] [Indexed: 11/30/2022] Open
Abstract
Background Proteins in inclusion bodies (IBs) present native-like secondary structures. However, chaotropic agents at denaturing concentrations, which are widely used for IB solubilization and subsequent refolding, unfold these secondary structures. Removal of the chaotropes frequently causes reaggregation and poor recovery of bioactive proteins. High hydrostatic pressure (HHP) and alkaline pH are two conditions that, in the presence of low level of chaotropes, have been described as non-denaturing solubilization agents. In the present study we evaluated the strategy of combination of HHP and alkaline pH on the solubilization of IB using as a model an antigenic form of the zika virus (ZIKV) non-structural 1 (NS1) protein. Results Pressure-treatment (2.4 kbar) of NS1-IBs at a pH of 11.0 induced a low degree of NS1 unfolding and led to solubilization of the IBs, mainly into monomers. After dialysis at pH 8.5, NS1 was refolded and formed soluble oligomers. High (up to 68 mg/liter) NS1 concentrations were obtained by solubilization of NS1-IBs at pH 11 in the presence of arginine (Arg) with a final yield of approximately 80% of total protein content. The process proved to be efficient, quick and did not require further purification steps. Refolded NS1 preserved biological features regarding reactivity with antigen-specific antibodies, including sera of ZIKV-infected patients. The method resulted in an increase of approximately 30-fold over conventional IB solubilization-refolding methods. Conclusions The present results represent an innovative non-denaturing protein refolding process by means of the concomitant use of HHP and alkaline pH. Application of the reported method allowed the recovery of ZIKV NS1 at a condition that maintained the antigenic properties of the protein. Electronic supplementary material The online version of this article (10.1186/s12896-018-0486-2) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Cleide Mara Rosa da Silva
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Centro de Biotecnologia, Av. Prof. Lineu Prestes, 2242, São Paulo, 05508-000, Brazil
| | - Rosa Maria Chura-Chambi
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Centro de Biotecnologia, Av. Prof. Lineu Prestes, 2242, São Paulo, 05508-000, Brazil
| | - Lennon Ramos Pereira
- Departamento de Microbiologia, Universidade de São Paulo, Instituto de Ciências Biomédicas, Av. Prof. Lineu Prestes ,1374, São Paulo, 05508-000, Brazil
| | - Yraima Cordeiro
- Universidade Federal do Rio de Janeiro, Faculdade de Farmácia, Av. Carlos Chagas Filho 373, Rio de Janeiro, 21941-902, Brazil
| | - Luís Carlos de Souza Ferreira
- Departamento de Microbiologia, Universidade de São Paulo, Instituto de Ciências Biomédicas, Av. Prof. Lineu Prestes ,1374, São Paulo, 05508-000, Brazil
| | - Ligia Morganti
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Centro de Biotecnologia, Av. Prof. Lineu Prestes, 2242, São Paulo, 05508-000, Brazil.
| |
Collapse
|
218
|
Role of NS1 antibodies in the pathogenesis of acute secondary dengue infection. Nat Commun 2018; 9:5242. [PMID: 30531923 PMCID: PMC6286345 DOI: 10.1038/s41467-018-07667-z] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 11/13/2018] [Indexed: 12/16/2022] Open
Abstract
The role of NS1-specific antibodies in the pathogenesis of dengue virus infection is poorly understood. Here we investigate the immunoglobulin responses of patients with dengue fever (DF) and dengue hemorrhagic fever (DHF) to NS1. Antibody responses to recombinant-NS1 are assessed in serum samples throughout illness of patients with acute secondary DENV1 and DENV2 infection by ELISA. NS1 antibody titres are significantly higher in patients with DHF compared to those with DF for both serotypes, during the critical phase of illness. Furthermore, during both acute secondary DENV1 and DENV2 infection, the antibody repertoire of DF and DHF patients is directed towards distinct regions of the NS1 protein. In addition, healthy individuals, with past non-severe dengue infection have a similar antibody repertoire as those with mild acute infection (DF). Therefore, antibodies that target specific NS1 epitopes could predict disease severity and be of potential benefit in aiding vaccine and treatment design. The antibody response during infection with dengue virus is a key component involved in the pathogenesis during secondary infection. Here the authors show antibodies targeting NS1 and the epitopes targeted can be associated with disease severity during human infection.
Collapse
|
219
|
Dengue Virus NS1 Exposure Affects von Willebrand Factor Profile and Platelet Adhesion Properties of Cultured Vascular Endothelial Cells. Indian J Hematol Blood Transfus 2018; 35:502-506. [PMID: 31388264 DOI: 10.1007/s12288-018-1058-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 12/03/2018] [Indexed: 10/27/2022] Open
Abstract
Hematological abnormalities and altered vascular permeability are frequently encountered in Dengue virus infected patients, but the mechanisms that alter platelet-endothelium interactions remain incompletely understood. The DENV NS1 protein has been implicated in adverse disease outcomes. In the present study the role of NS1 protein in affecting the expression of vWF and platelet adhesion properties of endothelial cells was studied in vitro. The results suggest that vWF is down regulated in cultured endothelial cells 6 and 24 h after exposure with increase in vWF levels in culture supernatants at corresponding time points. Ultrastructural studies showed distinct evidence of endothelial cell activation morphology and degranulation of Weibel-Palade bodies in NS1 exposed cells that also showed increased platelet activation physiology. The findings suggest that changes in vWF production and secretion may be induced in endothelial cells exposed to DENV NS1 protein; and play a role in bleeding complications of severe DENV disease.
Collapse
|
220
|
Poveda-Cuevas S, Etchebest C, Barroso da Silva FL. Insights into the ZIKV NS1 Virology from Different Strains through a Fine Analysis of Physicochemical Properties. ACS OMEGA 2018; 3:16212-16229. [PMID: 31458257 PMCID: PMC6643396 DOI: 10.1021/acsomega.8b02081] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 11/14/2018] [Indexed: 05/02/2023]
Abstract
The flavivirus genus has several organisms responsible for generating various diseases in humans. Recently, especially in tropical regions, Zika virus (ZIKV) has raised great health concerns due to the high number of cases affecting the area during the last years that has been accompanied by a rise in the cases of the Guillain-Barré syndrome and fetal and neonatal microcephaly. Diagnosis is still difficult since the clinical symptoms between ZIKV and other flaviviruses (e.g., dengue and yellow fever) are highly similar. The understanding of their common physicochemical properties that are pH-dependent and biomolecular interaction features and their differences sheds light on the relation strain-virulence and might suggest alternative strategies toward differential serological diagnostics and therapeutic intervention. Due to their immunogenicity, the primary focus of this study was on the ZIKV nonstructural proteins 1 (NS1). By means of computational studies and semiquantitative theoretical analyses, we calculated the main physicochemical properties of this protein from different strains that are directly responsible for the biomolecular interactions and, therefore, can be related to the differential infectivity of the strains. We also mapped the electrostatic differences at both the sequence and structural levels for the strains from Uganda to Brazil, which could suggest possible molecular mechanisms for the increase of the virulence of ZIKV in Brazil. Exploring the interfaces used by NS1 to self-associate in some different oligomeric states and interact with membranes and the antibody, we could map the strategy used by the ZIKV during its evolutionary process. This indicates possible molecular mechanisms that can be correlated with the different immunological responses. By comparing with the known antibody structure available for the West Nile virus, we demonstrated that this antibody would have difficulties to neutralize the NS1 from the Brazilian strain. The present study also opens up perspectives to computationally design high-specificity antibodies.
Collapse
Affiliation(s)
- Sergio
A. Poveda-Cuevas
- Programa
Interunidades em Bioinformática, Universidade de São Paulo, São Paulo 05508-090, Brazil
- Departamento
de Física e Química, Faculdade de Ciências Farmacêuticas
de Ribeirão Preto, Universidade de
São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil
- University
of São Paulo and Université Sorbonne Paris Cité
Joint International Laboratory in Structural Bioinformatics
| | - Catherine Etchebest
- Institut
National de la Transfusion Sanguine, Paris 75015, France
- Biologie
Intégrée du Globule Rouge, Equipe 2, Dynamique des Structures
et des Interactions Moléculaires, Institut National de la Santé et de la Recherche Médicale,
UMR_S 1134, Paris 75015, France
- Université
Sorbonne Paris Cité and Université Paris Diderot, 75013 Paris, France
- University
of São Paulo and Université Sorbonne Paris Cité
Joint International Laboratory in Structural Bioinformatics
| | - Fernando L. Barroso da Silva
- Programa
Interunidades em Bioinformática, Universidade de São Paulo, São Paulo 05508-090, Brazil
- Departamento
de Física e Química, Faculdade de Ciências Farmacêuticas
de Ribeirão Preto, Universidade de
São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil
- University
of São Paulo and Université Sorbonne Paris Cité
Joint International Laboratory in Structural Bioinformatics
- Department
of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27606, United States
- E-mail: and
| |
Collapse
|
221
|
Saribas AS, Coric P, Bouaziz S, Safak M. Expression of novel proteins by polyomaviruses and recent advances in the structural and functional features of agnoprotein of JC virus, BK virus, and simian virus 40. J Cell Physiol 2018; 234:8295-8315. [PMID: 30390301 DOI: 10.1002/jcp.27715] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 10/18/2018] [Indexed: 12/30/2022]
Abstract
Polyomavirus family consists of a highly diverse group of small DNA viruses. The founding family member (MPyV) was first discovered in the newborn mouse in the late 1950s, which induces solid tumors in a wide variety of tissue types that are the epithelial and mesenchymal origin. Later, other family members were also isolated from a number of mammalian, avian and fish species. Some of these viruses significantly contributed to our current understanding of the fundamentals of modern biology such as transcription, replication, splicing, RNA editing, and cell transformation. After the discovery of first two human polyomaviruses (JC virus [JCV] and BK virus [BKV]) in the early 1970s, there has been a rapid expansion in the number of human polyomaviruses in recent years due to the availability of the new technologies and brought the present number to 14. Some of the human polyomaviruses cause considerably serious human diseases, including progressive multifocal leukoencephalopathy, polyomavirus-associated nephropathy, Merkel cell carcinoma, and trichodysplasia spinulosa. Emerging evidence suggests that the expression of the polyomavirus genome is more complex than previously thought. In addition to encoding universally expressed regulatory and structural proteins (LT-Ag, Sm t-Ag, VP1, VP2, and VP3), some polyomaviruses express additional virus-specific regulatory proteins and microRNAs. This review summarizes the recent advances in polyomavirus genome expression with respect to the new viral proteins and microRNAs other than the universally expressed ones. In addition, a special emphasis is devoted to the recent structural and functional discoveries in the field of polyomavirus agnoprotein which is expressed only by JCV, BKV, and simian virus 40 genomes.
Collapse
Affiliation(s)
- A Sami Saribas
- Laboratory of Molecular Neurovirology, Department of Neuroscience, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Pascale Coric
- Laboratoire de Cristallographie et RMN Biologiques, Université Paris Descartes, Sorbonne Paris Cité, UMR 8015 CNRS, Paris, France
| | - Serge Bouaziz
- Laboratoire de Cristallographie et RMN Biologiques, Université Paris Descartes, Sorbonne Paris Cité, UMR 8015 CNRS, Paris, France
| | - Mahmut Safak
- Laboratory of Molecular Neurovirology, Department of Neuroscience, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| |
Collapse
|
222
|
Norazharuddin H, Lai NS. Roles and Prospects of Dengue Virus Non-structural Proteins as Antiviral Targets: An Easy Digest. Malays J Med Sci 2018; 25:6-15. [PMID: 30914859 PMCID: PMC6419879 DOI: 10.21315/mjms2018.25.5.2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Accepted: 03/21/2018] [Indexed: 12/13/2022] Open
Abstract
Dengue is a neglected disease caused by the infection of dengue virus which is transmitted by Aedes mosquitoes and to some, it could be fatal. Regardless of the enormous work devoted to research for the treatment of dengue, to this day there is no cure, and treatment is solely limited to supportive care by treating the symptoms. The inhibition of the viral RNA non-structural enzymes has been the most popular approach amongst the strategies applied to the search and development of dengue antivirals. This review is a compact digest of what is already known of the roles and the prospects of the dengue virus non-structural proteins NS1, NS2BNS3, NS4A, NS4B and NS5 as the targets for antiviral studies including the recent progress that has been published regarding their roles.
Collapse
Affiliation(s)
- Hannah Norazharuddin
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia
| | - Ngit Shin Lai
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia
| |
Collapse
|
223
|
Yu G, Lin Y, Tang Y, Diao Y. Evolution of Tembusu Virus in Ducks, Chickens, Geese, Sparrows, and Mosquitoes in Northern China. Viruses 2018; 10:v10090485. [PMID: 30201873 PMCID: PMC6164154 DOI: 10.3390/v10090485] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 09/05/2018] [Accepted: 09/06/2018] [Indexed: 12/26/2022] Open
Abstract
Tembusu virus (TMUV) is a contagious pathogen from fowl that mainly infects ducks and geese, causing symptoms of high fever, loss of appetite, retarded growth, neurological symptoms, severe duck-drop syndrome, and even death. During an epidemiological investigation of TMUV in Northern China, we isolated 11 TMUV strains from ducks, chickens, geese, sparrows, and mosquitoes (2011–2017). Phylogenetic analysis of the open-reading frames of genes revealed that these strains clustered into Chinese strains II. The nucleotide and amino acid homologies of NS1 of the strains ranged between 85.8–99.8% and 92.5–99.68%, respectively, which were lower than those of E (86.7–99.9% and 96.5–99.9%, respectively), NS3 (87.6–99.9% and 98.2–99.8%, respectively), and NS5 (86.5–99.9% and 97.8–99.9%, respectively). Predictions of the tertiary structure of the viral proteins indicated that NS1 in 4 of 11 strains had a protein structure mutation at 180TAV182 that changed a random crimp into an alpha helix. The protein of 6 of 11 strains had a glycosylation site mutation from NTTD to NITD. Furthermore, epidemiological data suggested that TMUV has been circulating in half of China’s provinces (17 of 34). Our findings, for the first time, have identified the NS1 protein as a potential hypervariable region for genetic evolution. Additionally, the territorial scope of the virus has expanded, requiring strict bio-security measures or a multivalent vaccine to control its spread.
Collapse
Affiliation(s)
- Guanliu Yu
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong Province, China.
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong Province, China.
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong Province, China.
| | - Yun Lin
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong Province, China.
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong Province, China.
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong Province, China.
| | - Yi Tang
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong Province, China.
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong Province, China.
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong Province, China.
| | - Youxiang Diao
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong Province, China.
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong Province, China.
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Road, Tai'an 271018, Shandong Province, China.
| |
Collapse
|
224
|
Songprakhon P, Limjindaporn T, Perng GC, Puttikhunt C, Thaingtamtanha T, Dechtawewat T, Saitornuang S, Uthaipibull C, Thongsima S, Yenchitsomanus PT, Malasit P, Noisakran S. Human glucose-regulated protein 78 modulates intracellular production and secretion of nonstructural protein 1 of dengue virus. J Gen Virol 2018; 99:1391-1406. [PMID: 30102148 DOI: 10.1099/jgv.0.001134] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Virus-host interactions play important roles in virus infection and host cellular response. Several viruses, including dengue virus (DENV), usurp host chaperones to support their amplification and survival in the host cell. We investigated the interaction of nonstructural protein 1 (NS1) of DENV with three endoplasmic reticulum-resident chaperones (i.e. GRP78, calnexin and calreticulin) to delineate their functional roles and potential binding sites for protein complex formation. GRP78 protein showed prominent association with DENV NS1 in virus-infected Huh7 cells as evidenced by co-localization and co-immunoprecipitation assays. Further studies on the functional interaction of GRP78 protein were performed by using siRNA-mediated gene knockdown in a DENV replicon transfection system. GRP78 knockdown significantly decreased intracellular NS1 production and delayed NS1 secretion but had no effect on viral RNA replication. Dissecting the important domain of GRP78 required for DENV NS1 interaction showed co-immunoprecipitation of DENV NS1 with a full-length and substrate-binding domain (SBD), but not an ATPase domain, of GRP78, confirming their interaction through SBD binding. Molecular dynamics simulations of DENV NS1 and human GRP78 complex revealed their potential binding sites through hydrogen and hydrophobic bonding. The majority of GRP78-binding sites were located in a β-roll domain and connector subdomains on the DENV NS1 structure involved in hydrophobic surface formation. Taken together, our findings demonstrated the roles of human GRP78 in facilitating the intracellular production and secretion of DENV NS1 as well as predicted potential binding sites between the DENV NS1 and GRP78 complex, which could have implications in the future development of target-based antiviral drugs.
Collapse
Affiliation(s)
- Pucharee Songprakhon
- 1Division of Molecular Medicine, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Thawornchai Limjindaporn
- 2Department of Anatomy, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Guey Chuen Perng
- 3Department of Microbiology and Immunology, College of Medicine, and Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan 70101, Taiwan, ROC
| | - Chunya Puttikhunt
- 4Medical Biotechnology Research Unit, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Bangkok 10700, Thailand.,5Division of Dengue Hemorrhagic Fever Research, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | | | - Thanyaporn Dechtawewat
- 1Division of Molecular Medicine, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Sawanan Saitornuang
- 4Medical Biotechnology Research Unit, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Bangkok 10700, Thailand
| | - Chairat Uthaipibull
- 7Protein-Ligand Engineering and Molecular Biology Laboratory, Medical Molecular Biology Research Unit, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Sissades Thongsima
- 8Biostatistics and Informatic Laboratory, Genome Institute, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Pa-Thai Yenchitsomanus
- 1Division of Molecular Medicine, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Prida Malasit
- 4Medical Biotechnology Research Unit, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Bangkok 10700, Thailand.,5Division of Dengue Hemorrhagic Fever Research, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Sansanee Noisakran
- 5Division of Dengue Hemorrhagic Fever Research, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.,4Medical Biotechnology Research Unit, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Bangkok 10700, Thailand
| |
Collapse
|
225
|
Molecular Recognition Features in Zika Virus Proteome. J Mol Biol 2018; 430:2372-2388. [DOI: 10.1016/j.jmb.2017.10.018] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 10/18/2017] [Accepted: 10/18/2017] [Indexed: 12/23/2022]
|
226
|
Chen HR, Lai YC, Yeh TM. Dengue virus non-structural protein 1: a pathogenic factor, therapeutic target, and vaccine candidate. J Biomed Sci 2018; 25:58. [PMID: 30037331 PMCID: PMC6057007 DOI: 10.1186/s12929-018-0462-0] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 07/13/2018] [Indexed: 02/05/2023] Open
Abstract
Dengue virus (DENV) infection is the most common mosquito-transmitted viral infection. DENV infection can cause mild dengue fever or severe dengue hemorrhagic fever (DHF)/dengue shock syndrome (DSS). Hemorrhage and vascular leakage are two characteristic symptoms of DHF/DSS. However, due to the limited understanding of dengue pathogenesis, no satisfactory therapies to treat nor vaccine to prevent dengue infection are available, and the mortality of DHF/DSS is still high. DENV nonstructural protein 1 (NS1), which can be secreted in patients’ sera, has been used as an early diagnostic marker for dengue infection for many years. However, the roles of NS1 in dengue-induced vascular leakage were described only recently. In this article, the pathogenic roles of DENV NS1 in hemorrhage and vascular leakage are reviewed, and the possibility of using NS1 as a therapeutic target and vaccine candidate is discussed.
Collapse
Affiliation(s)
- Hong-Ru Chen
- The Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yen-Chung Lai
- The Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Trai-Ming Yeh
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| |
Collapse
|
227
|
Hage DS. Development of Immunochromatographic Assays for the Selective Detection of Zika Virus or Dengue Virus Serotypes in Serum. Clin Chem 2018; 64:991-993. [DOI: 10.1373/clinchem.2017.282699] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 03/15/2018] [Indexed: 11/06/2022]
Affiliation(s)
- David S Hage
- Department of Chemistry, University of Nebraska, Lincoln, NE
| |
Collapse
|
228
|
Secretion of Nonstructural Protein 1 of Dengue Virus from Infected Mosquito Cells: Facts and Speculations. J Virol 2018; 92:JVI.00275-18. [PMID: 29720514 DOI: 10.1128/jvi.00275-18] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Dengue virus nonstructural protein 1 (NS1) is a multifunctional glycoprotein. For decades, the notion in the field was that NS1 is secreted exclusively from vertebrate cells and not from mosquito cells. However, recent evidence shows that mosquito cells also secrete NS1 efficiently. In this review, we discuss the evidence for secretion of NS1 of dengue virus, and of other flaviviruses, from mosquito cells, differences between NS1 secreted from mosquito and NS1 secreted from vertebrate cells, and possible roles of soluble NS1 in the insect flavivirus vector.
Collapse
|
229
|
Gao X, Wen Y, Wang J, Hong W, Li C, Zhao L, Yin C, Jin X, Zhang F, Yu L. Delayed and highly specific antibody response to nonstructural protein 1 (NS1) revealed during natural human ZIKV infection by NS1-based capture ELISA. BMC Infect Dis 2018; 18:275. [PMID: 29898684 PMCID: PMC6000977 DOI: 10.1186/s12879-018-3173-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 05/30/2018] [Indexed: 01/22/2023] Open
Abstract
Background Zika virus (ZIKV) had spread rapidly in the past few years in southern hemisphere where dengue virus (DENV) had caused epidemic problems for over half a century. The high degree of cross-reactivity of Envelope (E) protein specific antibody responses between ZIKV and DENV made it challenging to perform differential diagnosis between the two infections using standard ELISA method for E protein. Methods Using an IgG capture ELISA, we investigated the kinetics of nonstructural protein 1 (NS1) antibody response during natural ZIKV infection and the cross-reactivity to NS1 proteins using convalescent sera obtained from patients infected by either DENV or ZIKV. Results The analyses of the sequential serum samples from ZIKV infected individuals showed NS1 specific Abs appeared 2 weeks later than E specific Abs. Notably, human sera from ZIKV infected individuals did not contain cross-reactivity to NS1 proteins of any of the four DENV serotypes. Furthermore, four out of five NS1-specific monoclonal antibodies (mAbs) isolated from ZIKV infected individuals did not bind to DENV NS1 proteins. Only limited amount of cross-reactivity to ZIKV NS1 was displayed in 108 DENV1 immune sera at 1:100 dilution. Conclusions The high degree of NS1-specific Abs in both ZIKV and DENV infection revealed here suggest that NS1-based diagnostics would significantly improve the differential diagnosis between DENV and ZIKV infections. Electronic supplementary material The online version of this article (10.1186/s12879-018-3173-y) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Xiujie Gao
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, 627 Dongfeng Rd. East, Guangzhou, 510060, China
| | - Yingfen Wen
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, 627 Dongfeng Rd. East, Guangzhou, 510060, China
| | - Jian Wang
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, 627 Dongfeng Rd. East, Guangzhou, 510060, China
| | - Wenxin Hong
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, 627 Dongfeng Rd. East, Guangzhou, 510060, China
| | - Chunlin Li
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, 627 Dongfeng Rd. East, Guangzhou, 510060, China
| | - Lingzhai Zhao
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, 627 Dongfeng Rd. East, Guangzhou, 510060, China
| | - Chibiao Yin
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, 627 Dongfeng Rd. East, Guangzhou, 510060, China
| | - Xia Jin
- Viral Disease and Vaccine Translational Research Unit, CAS Key Lab of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences (CAS), Shanghai, 200025, China
| | - Fuchun Zhang
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, 627 Dongfeng Rd. East, Guangzhou, 510060, China.
| | - Lei Yu
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, 627 Dongfeng Rd. East, Guangzhou, 510060, China.
| |
Collapse
|
230
|
Bosch I, de Puig H, Hiley M, Carré-Camps M, Perdomo-Celis F, Narváez CF, Salgado DM, Senthoor D, O'Grady M, Phillips E, Durbin A, Fandos D, Miyazaki H, Yen CW, Gélvez-Ramírez M, Warke RV, Ribeiro LS, Teixeira MM, Almeida RP, Muñóz-Medina JE, Ludert JE, Nogueira ML, Colombo TE, Terzian ACB, Bozza PT, Calheiros AS, Vieira YR, Barbosa-Lima G, Vizzoni A, Cerbino-Neto J, Bozza FA, Souza TML, Trugilho MRO, de Filippis AMB, de Sequeira PC, Marques ETA, Magalhaes T, Díaz FJ, Restrepo BN, Marín K, Mattar S, Olson D, Asturias EJ, Lucera M, Singla M, Medigeshi GR, de Bosch N, Tam J, Gómez-Márquez J, Clavet C, Villar L, Hamad-Schifferli K, Gehrke L. Rapid antigen tests for dengue virus serotypes and Zika virus in patient serum. Sci Transl Med 2018; 9:9/409/eaan1589. [PMID: 28954927 DOI: 10.1126/scitranslmed.aan1589] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 06/02/2017] [Accepted: 09/08/2017] [Indexed: 12/16/2022]
Abstract
The recent Zika virus (ZIKV) outbreak demonstrates that cost-effective clinical diagnostics are urgently needed to detect and distinguish viral infections to improve patient care. Unlike dengue virus (DENV), ZIKV infections during pregnancy correlate with severe birth defects, including microcephaly and neurological disorders. Because ZIKV and DENV are related flaviviruses, their homologous proteins and nucleic acids can cause cross-reactions and false-positive results in molecular, antigenic, and serologic diagnostics. We report the characterization of monoclonal antibody pairs that have been translated into rapid immunochromatography tests to specifically detect the viral nonstructural 1 (NS1) protein antigen and distinguish the four DENV serotypes (DENV1-4) and ZIKV without cross-reaction. To complement visual test analysis and remove user subjectivity in reading test results, we used image processing and data analysis for data capture and test result quantification. Using a 30-μl serum sample, the sensitivity and specificity values of the DENV1-4 tests and the pan-DENV test, which detects all four dengue serotypes, ranged from 0.76 to 1.00. Sensitivity/specificity for the ZIKV rapid test was 0.81/0.86, respectively, using a 150-μl serum input. Serum ZIKV NS1 protein concentrations were about 10-fold lower than corresponding DENV NS1 concentrations in infected patients; moreover, ZIKV NS1 protein was not detected in polymerase chain reaction-positive patient urine samples. Our rapid immunochromatography approach and reagents have immediate application in differential clinical diagnosis of acute ZIKV and DENV cases, and the platform can be applied toward developing rapid antigen diagnostics for emerging viruses.
Collapse
Affiliation(s)
- Irene Bosch
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Department of Medicine, Mount Sinai School of Medicine, New York, NY 10029, USA
| | - Helena de Puig
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Megan Hiley
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Marc Carré-Camps
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Institut Químic de Sarrià, Universitat Ramon Llull, Barcelona, Spain
| | | | - Carlos F Narváez
- Programa de Medicina, Facultad de Salud, Universidad Surcolombiana, Neiva, Colombia
| | - Doris M Salgado
- Programa de Medicina, Facultad de Salud, Universidad Surcolombiana, Neiva, Colombia
| | - Dewahar Senthoor
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Madeline O'Grady
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Elizabeth Phillips
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Ann Durbin
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Program in Virology, Division of Medical Sciences, Harvard Medical School, Boston, MA 02115, USA
| | - Diana Fandos
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Institut Químic de Sarrià, Universitat Ramon Llull, Barcelona, Spain
| | - Hikaru Miyazaki
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Chun-Wan Yen
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Margarita Gélvez-Ramírez
- Universidad Industrial de Santander and AEDES Program (Alianza para el desarrollo de estrategias que disminuyan el impacto de enfermedades transmitidas por Aedes como resultado del estudio de sus endemias y epidemias), Bucaramanga, Santander, Colombia
| | | | - Lucas S Ribeiro
- Immunopharmacology Group, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos 6627, Belo Horizonte, Brazil
| | - Mauro M Teixeira
- Immunopharmacology Group, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos 6627, Belo Horizonte, Brazil
| | - Roque P Almeida
- Departamento de Medicina Interna e Patologia, Hospital Universitário/Empresa Brasileira de Serviços Hospitalares (EBSERH), Universidade Federal de Sergipe, Aracaju, Brazil
| | - José E Muñóz-Medina
- Laboratorio Central de Epidemiología, Instituto Mexicano del Seguro Social, Avenida Jacarandas S/N, Esquina Circuito Interior, Colonia La Raza Del Azcapotzalco, Código Postal 02990 México D.F., México
| | - Juan E Ludert
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de México, México
| | - Mauricio L Nogueira
- Faculdade de Medicina de São José do Rio Preto (FAMERP), São José do Rio Preto, Brazil
| | - Tatiana E Colombo
- Faculdade de Medicina de São José do Rio Preto (FAMERP), São José do Rio Preto, Brazil
| | - Ana C B Terzian
- Faculdade de Medicina de São José do Rio Preto (FAMERP), São José do Rio Preto, Brazil
| | - Patricia T Bozza
- Immunopharmacology Laboratory, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Andrea S Calheiros
- Immunopharmacology Laboratory, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Yasmine R Vieira
- National Institute of Infectious Disease Evandro Chagas, FIOCRUZ, Rio de Janeiro, Brazil
| | - Giselle Barbosa-Lima
- National Institute of Infectious Disease Evandro Chagas, FIOCRUZ, Rio de Janeiro, Brazil
| | - Alexandre Vizzoni
- National Institute of Infectious Disease Evandro Chagas, FIOCRUZ, Rio de Janeiro, Brazil
| | - José Cerbino-Neto
- National Institute of Infectious Disease Evandro Chagas, FIOCRUZ, Rio de Janeiro, Brazil
| | - Fernando A Bozza
- National Institute of Infectious Disease Evandro Chagas, FIOCRUZ, Rio de Janeiro, Brazil.,D'Or Institute of Research and Education (IDOR), Rio de Janeiro, Brazil
| | - Thiago M L Souza
- Immunopharmacology Laboratory, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil.,National Institute for Science and Technology on Innovation on Neglected Diseases (INCT/IDN), Center for Technological Development in Health (CDTS), FIOCRUZ, Rio de Janeiro, Brazil
| | - Monique R O Trugilho
- Toxinology Laboratory and Center for Technological Development in Health (CDTS), FIOCRUZ, Rio de Janeiro, Brazil
| | | | | | - Ernesto T A Marques
- Aggeu Magalhães Research Center, FIOCRUZ, Pernambuco, Recife, Brazil.,Department of Infectious Disease and Microbiology, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Tereza Magalhaes
- Aggeu Magalhães Research Center, FIOCRUZ, Pernambuco, Recife, Brazil.,Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, CO 80523, USA
| | - Francisco J Díaz
- Immunovirology Group, School of Medicine, University of Antioquia, Medellín, Colombia
| | - Berta N Restrepo
- Instituto Colombiano de Medicina Tropical (ICMT), Universidad CES, Sabaneta, Antioquia, Colombia
| | - Katerine Marín
- Instituto Colombiano de Medicina Tropical (ICMT), Universidad CES, Sabaneta, Antioquia, Colombia
| | - Salim Mattar
- Universidad de Córdoba, Montería, Córdoba, Colombia
| | - Daniel Olson
- Division of Infectious Diseases, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Edwin J Asturias
- Division of Infectious Diseases, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Mark Lucera
- Division of Infectious Diseases, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Mohit Singla
- Department of Paediatrics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | | | | | - Justina Tam
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Winchester Engineering Analytical Center (WEAC), Winchester, MA 01890, USA
| | - Jose Gómez-Márquez
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Charles Clavet
- Winchester Engineering Analytical Center (WEAC), Winchester, MA 01890, USA
| | - Luis Villar
- Universidad Industrial de Santander and AEDES Program (Alianza para el desarrollo de estrategias que disminuyan el impacto de enfermedades transmitidas por Aedes como resultado del estudio de sus endemias y epidemias), Bucaramanga, Santander, Colombia
| | - Kimberly Hamad-Schifferli
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. .,Department of Engineering, University of Massachusetts Boston, Boston, MA 02125, USA
| | - Lee Gehrke
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. .,Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| |
Collapse
|
231
|
Freire CCDM, Palmisano G, Braconi CT, Cugola FR, Russo FB, Beltrão-Braga PC, Iamarino A, Lima Neto DFD, Sall AA, Rosa-Fernandes L, Larsen MR, Zanotto PMDA. NS1 codon usage adaptation to humans in pandemic Zika virus. Mem Inst Oswaldo Cruz 2018; 113:e170385. [PMID: 29768530 PMCID: PMC5942634 DOI: 10.1590/0074-02760170385] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 02/20/2018] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Zika virus (ZIKV) was recognised as a zoonotic pathogen in Africa and southeastern Asia. Human infections were infrequently reported until 2007, when the first known epidemic occurred in Micronesia. After 2013, the Asian lineage of ZIKV spread along the Pacific Islands and Americas, causing severe outbreaks with millions of human infections. The recent human infections of ZIKV were also associated with severe complications, such as an increase in cases of Guillain-Barre syndrome and the emergence of congenital Zika syndrome. OBJECTIVES To better understand the recent and rapid expansion of ZIKV, as well as the presentation of novel complications, we compared the genetic differences between the African sylvatic lineage and the Asian epidemic lineage that caused the recent massive outbreaks. FINDINGS The epidemic lineages have significant codon adaptation in NS1 gene to translate these proteins in human and Aedes aegypti mosquito cells compared to the African zoonotic lineage. Accordingly, a Brazilian epidemic isolate (ZBR) produced more NS1 protein than the MR766 African lineage (ZAF) did, as indicated by proteomic data from infections of neuron progenitor cells-derived neurospheres. Although ZBR replicated more efficiently in these cells, the differences observed in the stoichiometry of ZIKV proteins were not exclusively explained by the differences in viral replication between the lineages. MAIN CONCLUSIONS Our findings suggest that natural, silent translational selection in the second half of 20th century could have improved the fitness of Asian ZIKV lineage in human and mosquito cells.
Collapse
Affiliation(s)
| | - Giuseppe Palmisano
- Universidade de São Paulo, Instituto de Ciências Biomédicas, Departamento de Parasitologia, São Paulo, SP, Brasil
| | - Carla T Braconi
- Universidade de São Paulo, Instituto de Ciências Biomédicas, Departamento de Microbiologia, Laboratório de Evolução Molecular e Bioinformática, São Paulo, SP, Brasil
| | - Fernanda R Cugola
- Universidade de São Paulo, Laboratório de Células-Tronco, Departamento de Cirurgia, São Paulo, SP, Brasil
| | - Fabiele B Russo
- Universidade de São Paulo, Laboratório de Células-Tronco, Departamento de Cirurgia, São Paulo, SP, Brasil
| | - Patricia Cb Beltrão-Braga
- Universidade de São Paulo, Laboratório de Células-Tronco, Departamento de Cirurgia, São Paulo, SP, Brasil.,Universidade de São Paulo, Escola de Artes, Ciências e Humanidades, Departamento de Obstetrícia, São Paulo, SP, Brasil
| | - Atila Iamarino
- Universidade de São Paulo, Instituto de Ciências Biomédicas, Departamento de Microbiologia, Laboratório de Evolução Molecular e Bioinformática, São Paulo, SP, Brasil
| | - Daniel Ferreira de Lima Neto
- Universidade de São Paulo, Instituto de Ciências Biomédicas, Departamento de Microbiologia, Laboratório de Evolução Molecular e Bioinformática, São Paulo, SP, Brasil
| | | | - Livia Rosa-Fernandes
- University of Southern Denmark, Department of Biochemistry and Molecular Biology, Odense, Denmark
| | - Martin R Larsen
- University of Southern Denmark, Department of Biochemistry and Molecular Biology, Odense, Denmark
| | - Paolo Marinho de Andrade Zanotto
- Universidade de São Paulo, Instituto de Ciências Biomédicas, Departamento de Microbiologia, Laboratório de Evolução Molecular e Bioinformática, São Paulo, SP, Brasil
| |
Collapse
|
232
|
Dwivedi VD, Tripathi IP, Tripathi RC, Bharadwaj S, Mishra SK. Genomics, proteomics and evolution of dengue virus. Brief Funct Genomics 2018; 16:217-227. [PMID: 28073742 DOI: 10.1093/bfgp/elw040] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The genome of a pathogenic organism possesses a specific order of nucleotides that contains not only information about the synthesis and expression of proteomes, which are required for its growth and survival, but also about its evolution. Inhibition of any particular protein, which is required for the survival of that pathogenic organism, can be used as a potential therapeutic target for the development of effective drugs to treat its infections. In this review, the genomics, proteomics and evolution of dengue virus have been discussed, which will be helpful in better understanding of its origin, growth, survival and evolution, and may contribute toward development of new efficient anti-dengue drugs.
Collapse
|
233
|
Matsuyama T, Sano N, Takano T, Sakai T, Yasuike M, Fujiwara A, Kawato Y, Kurita J, Yoshida K, Shimada Y, Nakayasu C. Antibody profiling using a recombinant protein–based multiplex ELISA array accelerates recombinant vaccine development: Case study on red sea bream iridovirus as a reverse vaccinology model. Vaccine 2018; 36:2643-2649. [DOI: 10.1016/j.vaccine.2018.03.059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 02/14/2018] [Accepted: 03/22/2018] [Indexed: 01/10/2023]
|
234
|
Hepatitis C Virus core+1/ARF Protein Modulates the Cyclin D1/pRb Pathway and Promotes Carcinogenesis. J Virol 2018; 92:JVI.02036-17. [PMID: 29444947 DOI: 10.1128/jvi.02036-17] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 02/06/2018] [Indexed: 02/06/2023] Open
Abstract
Viruses often encompass overlapping reading frames and unconventional translation mechanisms in order to maximize the output from a minimum genome and to orchestrate their timely gene expression. Hepatitis C virus (HCV) possesses such an unconventional open reading frame (ORF) within the core-coding region, encoding an additional protein, initially designated ARFP, F, or core+1. Two predominant isoforms of core+1/ARFP have been reported, core+1/L, initiating from codon 26, and core+1/S, initiating from codons 85/87 of the polyprotein coding region. The biological significance of core+1/ARFP expression remains elusive. The aim of the present study was to gain insight into the functional and pathological properties of core+1/ARFP through its interaction with the host cell, combining in vitro and in vivo approaches. Our data provide strong evidence that the core+1/ARFP of HCV-1a stimulates cell proliferation in Huh7-based cell lines expressing either core+1/S or core+1/L isoforms and in transgenic liver disease mouse models expressing core+1/S protein in a liver-specific manner. Both isoforms of core+1/ARFP increase the levels of cyclin D1 and phosphorylated Rb, thus promoting the cell cycle. In addition, core+1/S was found to enhance liver regeneration and oncogenesis in transgenic mice. The induction of the cell cycle together with increased mRNA levels of cell proliferation-related oncogenes in cells expressing the core+1/ARFP proteins argue for an oncogenic potential of these proteins and an important role in HCV-associated pathogenesis.IMPORTANCE This study sheds light on the biological importance of a unique HCV protein. We show here that core+1/ARFP of HCV-1a interacts with the host machinery, leading to acceleration of the cell cycle and enhancement of liver carcinogenesis. This pathological mechanism(s) may complement the action of other viral proteins with oncogenic properties, leading to the development of hepatocellular carcinoma. In addition, given that immunological responses to core+1/ARFP have been correlated with liver disease severity in chronic HCV patients, we expect that the present work will assist in clarifying the pathophysiological relevance of this protein as a biomarker of disease progression.
Collapse
|
235
|
Poonsiri T, Wright GSA, Diamond MS, Turtle L, Solomon T, Antonyuk SV. Structural Study of the C-Terminal Domain of Nonstructural Protein 1 from Japanese Encephalitis Virus. J Virol 2018; 92:e01868-17. [PMID: 29343583 PMCID: PMC5972899 DOI: 10.1128/jvi.01868-17] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 01/12/2018] [Indexed: 01/01/2023] Open
Abstract
Japanese encephalitis virus (JEV) is a mosquito-transmitted flavivirus that is closely related to other emerging viral pathogens, including dengue virus (DENV), West Nile virus (WNV), and Zika virus (ZIKV). JEV infection can result in meningitis and encephalitis, which in severe cases cause permanent brain damage and death. JEV occurs predominantly in rural areas throughout Southeast Asia, the Pacific Islands, and the Far East, causing around 68,000 cases of infection worldwide each year. In this report, we present a 2.1-Å-resolution crystal structure of the C-terminal β-ladder domain of JEV nonstructural protein 1 (NS1-C). The surface charge distribution of JEV NS1-C is similar to those of WNV and ZIKV but differs from that of DENV. Analysis of the JEV NS1-C structure, with in silico molecular dynamics simulation and experimental solution small-angle X-ray scattering, indicates extensive loop flexibility on the exterior of the protein. This, together with the surface charge distribution, indicates that flexibility influences the protein-protein interactions that govern pathogenicity. These factors also affect the interaction of NS1 with the 22NS1 monoclonal antibody, which is protective against West Nile virus infection. Liposome and heparin binding assays indicate that only the N-terminal region of NS1 mediates interaction with membranes and that sulfate binding sites common to NS1 structures are not glycosaminoglycan binding interfaces. This report highlights several differences between flavivirus NS1 proteins and contributes to our understanding of their structure-pathogenic function relationships.IMPORTANCE JEV is a major cause of viral encephalitis in Asia. Despite extensive vaccination, epidemics still occur. Nonstructural protein 1 (NS1) plays a role in viral replication, and, because it is secreted, it can exhibit a wide range of interactions with host proteins. NS1 sequence and protein folds are conserved within the Flavivirus genus, but variations in NS1 protein-protein interactions among viruses likely contribute to differences in pathogenesis. Here, we compared characteristics of the C-terminal β-ladder domain of NS1 between flaviviruses, including surface charge, loop flexibility, epitope cross-reactivity, membrane adherence, and glycosaminoglycan binding. These structural features are central to NS1 functionality and may provide insight into the development of diagnostic tests and therapeutics.
Collapse
Affiliation(s)
- Thanalai Poonsiri
- Molecular Biophysics Group, Institute of Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, United Kingdom
- Health Protection Research Unit on Emerging and Zoonotic Infections, Institute of Infection and Global Health, University of Liverpool, Liverpool, United Kingdom
| | - Gareth S A Wright
- Molecular Biophysics Group, Institute of Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Michael S Diamond
- Department of Medicine, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA
- Department of Molecular Microbiology, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA
- Department of Pathology & Immunology, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA
| | - Lance Turtle
- Centre for Global Vaccine Research, Institute of Infection and Global Health, University of Liverpool, Liverpool, United Kingdom
- Health Protection Research Unit on Emerging and Zoonotic Infections, Institute of Infection and Global Health, University of Liverpool, Liverpool, United Kingdom
| | - Tom Solomon
- Health Protection Research Unit on Emerging and Zoonotic Infections, Institute of Infection and Global Health, University of Liverpool, Liverpool, United Kingdom
| | - Svetlana V Antonyuk
- Molecular Biophysics Group, Institute of Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, United Kingdom
| |
Collapse
|
236
|
Kim YH, Lee J, Kim YE, Chong CK, Pinchemel Y, Reisdörfer F, Coelho JB, Dias RF, Bae PK, Gusmão ZPM, Ahn HJ, Nam HW. Development of a Rapid Diagnostic Test Kit to Detect IgG/IgM Antibody against Zika Virus Using Monoclonal Antibodies to the Envelope and Non-structural Protein 1 of the Virus. THE KOREAN JOURNAL OF PARASITOLOGY 2018. [PMID: 29529852 PMCID: PMC5858665 DOI: 10.3347/kjp.2018.56.1.61] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We developed a Rapid Diagnostic Test (RDT) kit for detecting IgG/IgM antibodies against Zika virus (ZIKV) using monoclonal antibodies to the envelope (E) and non-structural protein 1 (NS1) of ZIKV. These proteins were produced using baculovirus expression vector with Sf9 cells. Monoclonal antibodies J2G7 to NS1 and J5E1 to E protein were selected and conjugated with colloidal gold to produce the Zika IgG/IgM RDT kit (Zika RDT). Comparisons with ELISA, plaque reduction neutralization test (PRNT), and PCR were done to investigate the analytical sensitivity of Zika RDT, which resulted in 100% identical results. Sensitivity and specificity of Zika RDT in a field test was determined using positive and negative samples from Brazil and Korea. The diagnostic accuracy of Zika RDT was fairly high; sensitivity and specificity for IgG was 99.0 and 99.3%, respectively, while for IgM it was 96.7 and 98.7%, respectively. Cross reaction with dengue virus was evaluated using anti-Dengue Mixed Titer Performance Panel (PVD201), in which the Zika RDT showed cross-reactions with DENV in 16.7% and 5.6% in IgG and IgM, respectively. Cross reactions were not observed with West Nile, yellow fever, and hepatitis C virus infected sera. Zika RDT kit is very simple to use, rapid to assay, and very sensitive, and highly specific. Therefore, it would serve as a choice of method for point-of-care diagnosis and large scale surveys of ZIKV infection under clinical or field conditions worldwide in endemic areas.
Collapse
Affiliation(s)
- Yeong Hoon Kim
- Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | | | | | | | | | | | | | | | - Pan Kee Bae
- BioNano Health Guard Research Center, Daejeon 34141, Korea
| | | | - Hye-Jin Ahn
- Department of Parasitology, College of Medicine, Catholic University of Korea, Seoul 06591, Korea
| | - Ho-Woo Nam
- Department of Parasitology, College of Medicine, Catholic University of Korea, Seoul 06591, Korea
| |
Collapse
|
237
|
Abstract
Zika virus (ZIKV) was initially thought to cause only mild, self-limiting symptoms. However, recent outbreaks have been associated with the autoimmune disease Guillain-Barré syndrome and causally linked to a congenital malformation known as microcephaly. This has led to an urgent need for a safe and effective vaccine. A comprehensive understanding of the immunology of ZIKV infection is required to aid in the design of such a vaccine. Whilst details of both innate and adaptive immune responses to ZIKV are emerging, further research is needed. As immunopathogenesis has been implicated in poor outcomes following infection with the related dengue virus, identification of cross-reactive immune responses between flaviviruses and the impact they may have on disease progression is also of high importance.
Collapse
Affiliation(s)
- Abigail Culshaw
- Department of Medicine, Imperial College London, Hammersmith Campus, Du Cane Road, London, W12 0NN, UK
| | - Juthathip Mongkolsapaya
- Department of Medicine, Imperial College London, Hammersmith Campus, Du Cane Road, London, W12 0NN, UK.,Dengue Hemorrhagic Fever Research Unit, Office for Research and Development, Siriraj Hospital, Faculty of Medicine, Mahidol University, Bangkok, Thailand
| | - Gavin Screaton
- Medical Sciences Division, University of Oxford, Level 3, John Radcliffe Hospital, Oxford, OX3 9DU, UK
| |
Collapse
|
238
|
Xia H, Luo H, Shan C, Muruato AE, Nunes BTD, Medeiros DBA, Zou J, Xie X, Giraldo MI, Vasconcelos PFC, Weaver SC, Wang T, Rajsbaum R, Shi PY. An evolutionary NS1 mutation enhances Zika virus evasion of host interferon induction. Nat Commun 2018; 9:414. [PMID: 29379028 PMCID: PMC5788864 DOI: 10.1038/s41467-017-02816-2] [Citation(s) in RCA: 212] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 12/29/2017] [Indexed: 12/12/2022] Open
Abstract
Virus-host interactions determine an infection outcome. The Asian lineage of Zika virus (ZIKV), responsible for the recent epidemics, has fixed a mutation in the NS1 gene after 2012 that enhances mosquito infection. Here we report that the same mutation confers NS1 to inhibit interferon-β induction. This mutation enables NS1 binding to TBK1 and reduces TBK1 phosphorylation. Engineering the mutation into a pre-epidemic ZIKV strain debilitates the virus for interferon-β induction; reversing the mutation in an epidemic ZIKV strain invigorates the virus for interferon-β induction; these mutational effects are lost in IRF3-knockout cells. Additionally, ZIKV NS2A, NS2B, NS4A, NS4B, and NS5 can also suppress interferon-β production through targeting distinct components of the RIG-I pathway; however, for these proteins, no antagonistic difference is observed among various ZIKV strains. Our results support the mechanism that ZIKV has accumulated mutation(s) that increases the ability to evade immune response and potentiates infection and epidemics.
Collapse
Affiliation(s)
- Hongjie Xia
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Huanle Luo
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Chao Shan
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Antonio E Muruato
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, TX, 77555, USA
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Bruno T D Nunes
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, TX, 77555, USA
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua, Pará State, Brazil
| | - Daniele B A Medeiros
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, TX, 77555, USA
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua, Pará State, Brazil
| | - Jing Zou
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Xuping Xie
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Maria Isabel Giraldo
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Pedro F C Vasconcelos
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua, Pará State, Brazil
- Department of Pathology, Pará State University, Belém, Brazil
| | - Scott C Weaver
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
- Institute for Human Infections & Immunity, University of Texas Medical Branch, Galveston, TX, 77555, USA
- Institute for Translational Science, University of Texas Medical Branch, Galveston, TX, 77555, USA
- Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX, 77555, USA
- Sealy Center for Structural Biology & Molecular Biophysics, University of Texas Medical Branch, Galveston, TX, USA
| | - Tian Wang
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
- Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX, 77555, USA
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Ricardo Rajsbaum
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
- Institute for Human Infections & Immunity, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Pei-Yong Shi
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, TX, 77555, USA.
- Institute for Human Infections & Immunity, University of Texas Medical Branch, Galveston, TX, 77555, USA.
- Institute for Translational Science, University of Texas Medical Branch, Galveston, TX, 77555, USA.
- Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX, 77555, USA.
- Sealy Center for Structural Biology & Molecular Biophysics, University of Texas Medical Branch, Galveston, TX, USA.
- Department of Phamarcology & Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA.
| |
Collapse
|
239
|
Watterson D, Modhiran N, Muller DA, Stacey KJ, Young PR. Plugging the Leak in Dengue Shock. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1062:89-106. [PMID: 29845527 DOI: 10.1007/978-981-10-8727-1_7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recent structural and functional advances provide fresh insight into the biology of the dengue virus non-structural protein, NS1 and suggest new avenues of research. The work of our lab and others have shown that the secreted, hexameric form of NS1 has a systemic toxic effect, inducing inflammatory cytokines and acting directly on endothelial cells to produce the hallmark of dengue disease, vascular leak. We also demonstrated that NS1 exerts its toxic activity through recognition by the innate immune receptor TLR4, mimicking the bacterial endotoxin LPS. This monograph covers the background underpinning these new findings and discusses new avenues for antiviral and vaccine intervention.
Collapse
Affiliation(s)
- Daniel Watterson
- Australian Infectious Diseases Research Centre, School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Australia.
| | - Naphak Modhiran
- Australian Infectious Diseases Research Centre, School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - David A Muller
- Australian Infectious Diseases Research Centre, School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - Katryn J Stacey
- Australian Infectious Diseases Research Centre, School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | - Paul R Young
- Australian Infectious Diseases Research Centre, School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Australia.
| |
Collapse
|
240
|
Dengue Antiviral Development: A Continuing Journey. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1062:319-332. [PMID: 29845542 DOI: 10.1007/978-981-10-8727-1_22] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Dengue fever is a leading cause of illness and mortality in the tropics and subtropics. There are no therapeutics currently available and a recently approved vaccine is not very efficacious demanding an urgent need to develop an effective antiviral. The path to successful dengue drug development depends on availability of relevant preclinical testing models and better understanding of dengue pathogenesis. In recent years, efforts to develop dengue therapeutics have focused on both repurposing approved drugs as well as discovery of new chemical entities that act via virus or host targeted mechanisms. Here, we discuss the various innovative approaches, their outcome, and the lessons gleaned from the development efforts.
Collapse
|
241
|
The Transactions of NS3 and NS5 in Flaviviral RNA Replication. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1062:147-163. [PMID: 29845531 DOI: 10.1007/978-981-10-8727-1_11] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Dengue virus (DENV) replication occurs in virus-induced vesicles that contain the replication complex (RC) where viral RNA, viral proteins and host proteins participate in RNA-RNA, RNA-protein and protein-protein interactions to ensure viral genome synthesis. However, the details of the multitude of interactions involved in the biogenesis of the infectious virion are not fully understood. In this review, we will focus on the interaction between non-structural (NS) proteins NS3 and NS5, as well as their interactions with viral RNA and briefly also the interaction of NS5 with the host nuclear transport receptor protein importin-α. The multifunctional NS3 protease/helicase and NS5 methyltransferase (MTase)/RNA-dependent RNA polymerase (RdRp) contain all the enzymatic activities required to synthesize the viral RNA genome. The success stories of drug discovery and development with Hepatitis C virus (HCV), a member of the Flaviviridae family, has led to the view that DENV NS3 and NS5 may be attractive antiviral drug targets. However, more than 10 years of intensive research effort by Novatis has revealed that they are not "low hanging fruits" and therefore, the search for potent directly acting antivirals (DAAs) remains a pipeline goal for several medium to large drug discovery enterprises. The effort to discover DAAs for DENV has been boosted by the epidemic outbreak of the closely related flavivirus member - Zika virus (ZIKV). Because the viral RNA replication occurs within a molecular machine that is composed several viral and host proteins, much interest has turned to characterising functionally essential protein-protein interactions in order to identify potential allosteric inhibitor binding sites within the RC.
Collapse
|
242
|
Cedillo-Barrón L, García-Cordero J, Shrivastava G, Carrillo-Halfon S, León-Juárez M, Bustos Arriaga J, León Valenzuela P, Gutiérrez Castañeda B. The Role of Flaviviral Proteins in the Induction of Innate Immunity. Subcell Biochem 2018; 88:407-442. [PMID: 29900506 DOI: 10.1007/978-981-10-8456-0_17] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Flaviviruses are positive, single-stranded, enveloped cytoplasmic sense RNA viruses that cause a variety of important diseases worldwide. Among them, Zika virus, West Nile virus, Japanese encephalitis virus, and Dengue virus have the potential to cause severe disease. Extensive studies have been performed to elucidate the structure and replication strategies of flaviviruses, and current studies are aiming to unravel the complex molecular interactions between the virus and host during the very early stages of infection. The outcomes of viral infection and rapid establishment of the antiviral state, depends on viral detection by pathogen recognition receptors and rapid initiation of signalling cascades to induce an effective innate immune response. Extracellular and intracellular pathogen recognition receptors play a crucial role in detecting flavivirus infection and inducing a robust antiviral response. One of the main hallmarks of flaviviral nonstructural proteins is their multiple strategies to antagonise the interferon system. In this chapter, we summarize the molecular characteristics of flaviviral proteins and discuss how viral proteins target different components of the interferon signalling pathway by blocking phosphorylation, enhancing degradation, and downregulating the expression of major components of the Janus kinase/signal transducer and activator of transcription pathway. We also discuss how the interactions of viral proteins with host proteins facilitate viral pathogenesis. Due to the lack of antivirals or prophylactic treatments for many flaviviral infections, it is necessary to fully elucidate how these viruses disrupt cellular processes to influence pathogenesis and disease outcomes.
Collapse
Affiliation(s)
- L Cedillo-Barrón
- Departamento de Biomedicina Molecular, CINVESTAV IPN, México, D.F, Mexico.
| | - J García-Cordero
- Departamento de Biomedicina Molecular, CINVESTAV IPN, México, D.F, Mexico
| | - G Shrivastava
- Departamento de Biomedicina Molecular, CINVESTAV IPN, México, D.F, Mexico
| | - S Carrillo-Halfon
- Departamento de Biomedicina Molecular, CINVESTAV IPN, México, D.F, Mexico
| | - M León-Juárez
- Department of Immunobiochemistry, National Institute of Perinatology, México City, Mexico
| | - J Bustos Arriaga
- Unidad de Biomedicina. Facultad de Estudios Superiores-Iztacala, Universidad Nacional Autonoma de México, Edo. de México, Mexico
| | - Pc León Valenzuela
- Departamento de Biomedicina Molecular, CINVESTAV IPN, México, D.F, Mexico
| | - B Gutiérrez Castañeda
- Immunology Department UMF Facultad de Estudios Superiores-Iztacala, Universidad Nacional Autonoma de México, Edo. de México, Mexico
| |
Collapse
|
243
|
The Molecular Specificity of the Human Antibody Response to Dengue Virus Infections. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1062:63-76. [DOI: 10.1007/978-981-10-8727-1_5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
244
|
Giraldo MI, Vargas-Cuartas O, Gallego-Gomez JC, Shi PY, Padilla-Sanabria L, Castaño-Osorio JC, Rajsbaum R. K48-linked polyubiquitination of dengue virus NS1 protein inhibits its interaction with the viral partner NS4B. Virus Res 2017; 246:1-11. [PMID: 29294313 DOI: 10.1016/j.virusres.2017.12.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 12/22/2017] [Accepted: 12/29/2017] [Indexed: 01/08/2023]
Abstract
Dengue virus (DENV) is a member of the Flaviviridae family, which is transmitted to mammalian species through arthropods, and causes dengue fever or severe dengue fever in humans. The DENV genome encodes for multiple nonstructural (NS) proteins including NS1. NS1 plays an essential role in replication by interacting with other viral proteins including NS4B, however how these interactions are regulated during virus infection is not known. By using bioinformatics, mass spectrometry analysis, and co-immunoprecipitation assays, here we show that DENV-NS1 is ubiquitinated on multiples lysine residues during DENV infection, including K189, a lysine residue previously shown to be important for efficient DENV replication. Data from in vitro and cell culture experiments indicate that dengue NS1 undergoes modification with K48-linked polyubiquitin chains, which usually target proteins to the proteasome for degradation. Furthermore, ubiquitinated NS1 was detected in lysates as well as in supernatants of human and mosquito infected cells. Ubiquitin deconjugation of NS1 using the deubiquitinase OTU resulted in increased interaction with the viral protein NS4B suggesting that ubiquitinated NS1 has reduced affinity for NS4B. In support of these data, a K189R mutation on NS1, which abrogates ubiquitination on amino acid residue 189 of NS1, also increased NS1-NS4B interactions. Our work describes a new mechanism of regulation of NS1-NS4B interactions and suggests that ubiquitination of NS1 may affect DENV replication.
Collapse
Affiliation(s)
- Maria Isabel Giraldo
- Centro de Investigaciones Biomédicas, Universidad del Quindío, Cra 15 Cl 12N, Armenia, Colombia; Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA.
| | - Oscar Vargas-Cuartas
- Centro de Investigaciones Biomédicas, Universidad del Quindío, Cra 15 Cl 12N, Armenia, Colombia.
| | - Juan Carlos Gallego-Gomez
- Grupo de Medicina Molecular y de Traslación, Universidad de Antioquia, Cra. 51 D No. 62-29, Medellin, Colombia.
| | - Pei-Yong Shi
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX, USA.
| | | | | | - Ricardo Rajsbaum
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA.
| |
Collapse
|
245
|
Abstract
Tick-borne encephalitis virus (TBEV) belongs to the Flaviviridae family and Flavivirus genus. TBEV is maintained in transmission cycles between Ixodid ticks and wild mammalian hosts, particularly rodents. A wide range of animal species are also infected with TBEV by the bite of infected ticks, and TBEV infection causes fatal encephalitis in humans. TBEV is endemic widely in the Eurasian continent, and more than 10,000 cases of the disease are reported annually. In Japan, the 1st confirmed case of TBE was reported in the southern area of Hokkaido in 1993, and after 20 years, the 2nd to 4th cases were reported in Hokkaido in 2016 and 2017. Our sero-epizootiological survey indicated endemic foci of TBEV are widely distributed in Hokkaido and that those of TBEV or tick-borne flavivirus outside Hokkaido. In this review, I introduced recent topics of TBEV including newly developed diagnostic methods, epidemiology and pathogenesis of TBEV.
Collapse
|
246
|
Recombinant Zika NS1 Protein Secreted from Vero Cells Is Efficient for Inducing Production of Immune Serum Directed against NS1 Dimer. Int J Mol Sci 2017; 19:ijms19010038. [PMID: 29295477 PMCID: PMC5795988 DOI: 10.3390/ijms19010038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 12/19/2017] [Accepted: 12/21/2017] [Indexed: 02/04/2023] Open
Abstract
Zika virus (ZIKV) is a mosquito-borne flavivirus that recently emerged in the South Pacific, Americas, and Caribbean islands, where the larger epidemics were documented. ZIKV infection in humans is responsible for neurological disorders and microcephaly. Flavivirus NS1 is a non-structural glycoprotein that is expressed on the cell surface and secreted as a hexameric lipoprotein particle. Intracellular NS1 exists as a dimer that is required for viral replication, whereas the secreted NS1 hexamer interacts with host factors, leading to pathophysiological conditions. In an effort to dispose of specific anti-ZIKV NS1 immune serum, Vero cells were transduced with a lentiviral vector containing the NS1 gene from an epidemic strain of ZIKV. We showed that stably transduced Vero/ZIKV NS1 cell clone was efficient in the secretion of recombinant NS1 oligomer. Immunization of adult rat with purified extracellular NS1 developed anti-ZIKV antibodies that specifically react with the NS1 dimer produced in human cells infected with African and Asian strains of ZIKV. The rat antibody against ZIKV NS1 dimer is a reliable biological tool that enables the immunological detection of secreted NS1 from host-cells infected with ZIKV.
Collapse
|
247
|
New Targets for Zika Virus Determined by Human-Viral Interactomic: A Bioinformatics Approach. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1734151. [PMID: 29379794 PMCID: PMC5742907 DOI: 10.1155/2017/1734151] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 10/06/2017] [Accepted: 10/11/2017] [Indexed: 02/08/2023]
Abstract
Identifying ZIKV factors interfering with human host pathways represents a major challenge in understanding ZIKV tropism and pathogenesis. The integration of proteomic, gene expression and Protein-Protein Interactions (PPIs) established between ZIKV and human host proteins predicted by the OralInt algorithm identified 1898 interactions with medium or high score (≥0.7). Targets implicated in vesicular traffic and docking were identified. New receptors involved in endocytosis pathways as ZIKV entry targets, using both clathrin-dependent (17 receptors) and independent (10 receptors) pathways, are described. New targets used by the ZIKV to undermine the host's antiviral immune response are proposed based on predicted interactions established between the virus and host cell receptors and/or proteins with an effector or signaling role in the immune response such as IFN receptors and TLR. Complement and cytokines are proposed as extracellular potential interacting partners of the secreted form of NS1 ZIKV protein. Altogether, in this article, 18 new human targets for structural and nonstructural ZIKV proteins are proposed. These results are of great relevance for the understanding of viral pathogenesis and consequently the development of preventive (vaccines) and therapeutic targets for ZIKV infection management.
Collapse
|
248
|
Brault AC, Domi A, McDonald EM, Talmi-Frank D, McCurley N, Basu R, Robinson HL, Hellerstein M, Duggal NK, Bowen RA, Guirakhoo F. A Zika Vaccine Targeting NS1 Protein Protects Immunocompetent Adult Mice in a Lethal Challenge Model. Sci Rep 2017; 7:14769. [PMID: 29116169 PMCID: PMC5677088 DOI: 10.1038/s41598-017-15039-8] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 10/19/2017] [Indexed: 11/14/2022] Open
Abstract
Zika virus (ZIKV) is a mosquito-borne flavivirus that has rapidly extended its geographic range around the world. Its association with abnormal fetal brain development, sexual transmission, and lack of a preventive vaccine have constituted a global health concern. Designing a safe and effective vaccine requires significant caution due to overlapping geographical distribution of ZIKV with dengue virus (DENV) and other flaviviruses, possibly resulting in more severe disease manifestations in flavivirus immune vaccinees such as Antibody-Dependent Enhancement (ADE, a phenomenon involved in pathogenesis of DENV, and a risk associated with ZIKV vaccines using the envelope proteins as immunogens). Here, we describe the development of an alternative vaccine strategy encompassing the expression of ZIKV non-structural-1 (NS1) protein from a clinically proven safe, Modified Vaccinia Ankara (MVA) vector, thus averting the potential risk of ADE associated with structural protein-based ZIKV vaccines. A single intramuscular immunization of immunocompetent mice with the MVA-ZIKV-NS1 vaccine candidate provided robust humoral and cellular responses, and afforded 100% protection against a lethal intracerebral dose of ZIKV (strain MR766). This is the first report of (i) a ZIKV vaccine based on the NS1 protein and (ii) single dose protection against ZIKV using an immunocompetent lethal mouse challenge model.
Collapse
Affiliation(s)
- Aaron C Brault
- Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, CO, United States
| | | | - Erin M McDonald
- Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, CO, United States
| | - Dalit Talmi-Frank
- Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, CO, United States
| | | | | | | | | | - Nisha K Duggal
- Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, CO, United States
| | - Richard A Bowen
- Department of Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | | |
Collapse
|
249
|
Bordi L, Avsic-Zupanc T, Lalle E, Vairo F, Capobianchi MR, da Costa Vasconcelos PF. Emerging Zika Virus Infection: A Rapidly Evolving Situation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 972:61-86. [PMID: 28032327 DOI: 10.1007/5584_2016_187] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Zika virus is a mosquito-borne flavivirus, firstly identified in Uganda and responsible for sporadic human cases in Africa and Asia until recently, when large outbreak occurred in Pacific Ocean and the Americas. Since the main vectors during its spread outside of Africa have been Ae. albopictus and Ae. aegypti mosquitoes, which are widely distributed all over the world, there is urgent need for a coordinated response for prevention and spread of ZIKV epidemics.Despite clinical manifestation of Zika virus infection are usually mild and self limiting, there are reports suggesting, during the recent epidemic, an association of ZIKV infection with severe consequences, including fetal/newborn microcephaly, due to vertical in utero transmission, autoimmune-neurological presentations including cranial nerve dysfunction, and Guillain-Barré Syndrome in adults. The primary mode of transmission of Zika virus between humans is through the bite of an infected female mosquito of the Aedes genus, but also sexual and blood transfusion transmission may occur. Moreover, a case of non-sexual spread from one person to another has been described, indicating that we still have more to learn about Zika transmission.Biological basis for pathogenetic effects are under investigation. Laboratory diagnosis is challenging since, so far, there are no "gold standard" diagnostic tools, and the low and short viremia in the acute phase, and together with the high cross-reactivity among the members of flavivirus genus are the most challenging aspects to be overcome.
Collapse
Affiliation(s)
- Licia Bordi
- Laboratory of virology, National Institute for Infectious Diseases "Lazzaro Spallanzani", IRCCS, Via Portuense 292, 00149, Rome, Italy
| | - Tatjana Avsic-Zupanc
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Eleonora Lalle
- Laboratory of virology, National Institute for Infectious Diseases "Lazzaro Spallanzani", IRCCS, Via Portuense 292, 00149, Rome, Italy
| | - Francesco Vairo
- Emerging and Reemerging Infectious Disease Unit, National Institute for Infectious Diseases "Lazzaro Spallanzani", IRCCS, Rome, Italy
| | - Maria Rosaria Capobianchi
- Laboratory of virology, National Institute for Infectious Diseases "Lazzaro Spallanzani", IRCCS, Via Portuense 292, 00149, Rome, Italy.
| | | |
Collapse
|
250
|
Rocha LB, Alves RPDS, Caetano BA, Pereira LR, Mitsunari T, Amorim JH, Polatto JM, Botosso VF, Gallina NMF, Palacios R, Precioso AR, Granato CFH, Oliveira DBL, Silveira VBD, Luz D, Ferreira LCDS, Piazza RMF. Epitope Sequences in Dengue Virus NS1 Protein Identified by Monoclonal Antibodies. Antibodies (Basel) 2017; 6:antib6040014. [PMID: 31548529 PMCID: PMC6698852 DOI: 10.3390/antib6040014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 09/22/2017] [Accepted: 09/22/2017] [Indexed: 11/17/2022] Open
Abstract
Dengue nonstructural protein 1 (NS1) is a multi-functional glycoprotein with essential functions both in viral replication and modulation of host innate immune responses. NS1 has been established as a good surrogate marker for infection. In the present study, we generated four anti-NS1 monoclonal antibodies against recombinant NS1 protein from dengue virus serotype 2 (DENV2), which were used to map three NS1 epitopes. The sequence 193AVHADMGYWIESALNDT209 was recognized by monoclonal antibodies 2H5 and 4H1BC, which also cross-reacted with Zika virus (ZIKV) protein. On the other hand, the sequence 25VHTWTEQYKFQPES38 was recognized by mAb 4F6 that did not cross react with ZIKV. Lastly, a previously unidentified DENV2 NS1-specific epitope, represented by the sequence 127ELHNQTFLIDGPETAEC143, is described in the present study after reaction with mAb 4H2, which also did not cross react with ZIKV. The selection and characterization of the epitope, specificity of anti-NS1 mAbs, may contribute to the development of diagnostic tools able to differentiate DENV and ZIKV infections.
Collapse
Affiliation(s)
| | - Rubens Prince Dos Santos Alves
- Laboratório de Desenvolvimento de Vacinas, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, 05508-000, SP, Brazil.
| | - Bruna Alves Caetano
- Laboratório de Bacteriologia, Instituto Butantan, São Paulo, 05503-900 SP, Brazil.
| | - Lennon Ramos Pereira
- Laboratório de Desenvolvimento de Vacinas, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, 05508-000, SP, Brazil.
| | - Thais Mitsunari
- Laboratório de Bacteriologia, Instituto Butantan, São Paulo, 05503-900 SP, Brazil.
| | - Jaime Henrique Amorim
- Laboratório de Desenvolvimento de Vacinas, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, 05508-000, SP, Brazil.
| | | | | | | | - Ricardo Palacios
- Divisão de Ensaios Clínicos e Farmacovigilância, Instituto Butantan, São Paulo, 05503-900, SP, Brazil.
| | | | - Celso Francisco Hernandes Granato
- Departamento de Medicina, Disciplina de Doenças Infecciosas e Parasitárias, Universidade Federal de São Paulo, São Paulo, 04023-062, SP, Brazil.
| | - Danielle Bruna Leal Oliveira
- Laboratório de Virologia Molecular e Clínica, Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, 05508-000, SP, Brazil.
| | - Vanessa Barbosa da Silveira
- Laboratório de Virologia Molecular e Clínica, Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, 05508-000, SP, Brazil.
| | - Daniela Luz
- Laboratório de Bacteriologia, Instituto Butantan, São Paulo, 05503-900 SP, Brazil.
| | - Luís Carlos de Souza Ferreira
- Laboratório de Desenvolvimento de Vacinas, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, 05508-000, SP, Brazil.
| | | |
Collapse
|