1
|
Wang A, Niu Y, Zhao J, Liu H, Ding P, Chen Y, Zhou J, Zhu X, Zhang Y, Liang C, Zhang G. Rapid detection of varicella-zoster virus based on an immunochromatographic strip. Virology 2023; 586:35-42. [PMID: 37481958 DOI: 10.1016/j.virol.2023.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/26/2023] [Accepted: 07/11/2023] [Indexed: 07/25/2023]
Abstract
Varicella-zoster virus (VZV) is a highly infectious DNA virus that can cause varicella (chickenpox) and herpes zoster (HZ). A simple, sensitive and specific detection method is desirable for the VZV infection. In this study, VZV gE protein, expressed in CHO cells, was used to immunize BALB/c mice for the generation of monoclonal antibodies (mAbs). For the first time, we developed a colloidal gold-based immunochromatographic strip for rapid detection of VZV using a pair of mAbs against gE protein. The limit of detection (LOD) of the strip was 30 ng mL-1 of purified VZV gE antigen, and it could specifically test VZV without cross-reactivity with Enterovirus 71 (EV-71), Herpes simplex virus 1 (HSV-1) and Herpes simplex virus 2 (HSV-2). The coincidence rate between the strip and commercial real-time PCR diagnostic kit was 100% using vesicle as the clinical sample. Our strip provided a technical support for rapid and specific detection of VZV.
Collapse
Affiliation(s)
- Aiping Wang
- Henan Longhu Modern Immunity Laboratory, Zhengzhou, Henan, China; School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Yan Niu
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Jianguo Zhao
- Henan Longhu Modern Immunity Laboratory, Zhengzhou, Henan, China; College of Agriculture, Peking University, Beijing, China
| | - Hongliang Liu
- Henan Longhu Modern Immunity Laboratory, Zhengzhou, Henan, China; School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Peiyang Ding
- Henan Longhu Modern Immunity Laboratory, Zhengzhou, Henan, China; School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Yumei Chen
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Jingming Zhou
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Xifang Zhu
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Ying Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Chao Liang
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Gaiping Zhang
- Henan Longhu Modern Immunity Laboratory, Zhengzhou, Henan, China; School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China; College of Agriculture, Peking University, Beijing, China.
| |
Collapse
|
2
|
Niu Y, Wang A, Zhou J, Liu H, Chen Y, Ding P, Qi Y, Liang C, Zhu X, Zhang G. Development of an Indirect ELISA Kit for Rapid Detection of Varicella-Zoster Virus Antibody by Glycoprotein E. Front Microbiol 2022; 13:897752. [PMID: 35572642 PMCID: PMC9093680 DOI: 10.3389/fmicb.2022.897752] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/07/2022] [Indexed: 12/15/2022] Open
Abstract
Varicella-zoster virus (VZV), a highly infectious agent that causes varicella (chickenpox), can also cause zoster (shingles), a disorder that is frequently associated with severe neuralgia. A reliable serological VZV diagnostic assay would be useful for identifying unprotected individuals and for surveilling post-vaccination immunoprotection status. Toward this goal, VZV membrane glycoprotein E (gE), the immunodominant VZV protein, served as target antigen in an indirect ELISA kit developed here to detect anti-VZV antibodies in clinical samples. For target antigen preparation, Chinese hamster ovary (CHO) cells were modified to express and secrete the VZV gE ectodomain, which was subsequently purified and used as coating antigen in an indirect ELISA. Ultimately, the optimal purified gE coating antigen concentration was determined to be 2 μg.ml−1 and the OD450nm detection cutoff value was 0.286. The coefficient of variation (CV) of intra-assay and inter-assay were <10 and 15%, respectively. A comparative test of 66 clinical samples showed that the coincidence rate was 93.9% between the indirect ELISA and a commercial varicella-zoster virus IgG ELISA kit. Thus, the indirect ELISA kit developed here may be useful for achieving rapid, sensitive, and specific detection of anti-VZV antibodies.
Collapse
Affiliation(s)
- Yan Niu
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Aiping Wang
- School of Life Sciences, Zhengzhou University, Zhengzhou, China.,Henan Longhu Modern Immunity Laboratory, Zhengzhou University, Zhengzhou, China
| | - Jingming Zhou
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Hongliang Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou, China.,Henan Longhu Modern Immunity Laboratory, Zhengzhou University, Zhengzhou, China
| | - Yumei Chen
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Peiyang Ding
- School of Life Sciences, Zhengzhou University, Zhengzhou, China.,Henan Longhu Modern Immunity Laboratory, Zhengzhou University, Zhengzhou, China
| | - Yanhua Qi
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Chao Liang
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Xifang Zhu
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Gaiping Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou, China.,Henan Longhu Modern Immunity Laboratory, Zhengzhou University, Zhengzhou, China.,College of Agriculture, Peking University, Beijing, China
| |
Collapse
|
3
|
Al-Sulaiman AM, Vallely PJ, Klapper PE, Al Baradie R, Almatrrouk SA, Alharbi KK. Expression of variable viruses as herpes simplex glycoprotein D and varicella zoster gE glycoprotein using a novel plasmid based expression system in insect cell. Saudi J Biol Sci 2018; 24:1497-1504. [PMID: 30294218 PMCID: PMC6169504 DOI: 10.1016/j.sjbs.2016.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Revised: 05/01/2016] [Accepted: 05/03/2016] [Indexed: 12/23/2022] Open
Abstract
Several prokaryotic and eukaryotic expression systems have been used for in vitro production of viruses’ proteins. However eukaryotic expression system was always the first choice for production of proteins that undergo post-translational modification such as glycosylation. Recombinant baculoviruses have been widely used as safe vectors to express heterologous genes in the culture of insect cells, but the manipulation involved in creating, titrating, and amplifying viral stocks make it time consuming and laborious. Therefore, to facilitate rapid expression in insect cell, a plasmid based expression system was used to express herpes simplex type 1 glycoprotein D (HSV-1 gD) and varicella zoster glycoprotein E (VZV gE). Recombinant plasmids were generated, transfected into insect cells (SF9), and both glycoproteins were expressed 48 h post-infection. A protein with approximately molecular weight of 64-kDa and 98-kDa for HSV-1 gD and VZV gE respectively was expressed and confirmed by SDS. Proteins were detected in insect cells cytoplasm and outer membrane by immunofluorescence. The antigenicity and immunoreactivity of each protein were confirmed by immunoblot and ELISA. Results suggest that this system can be an alternative to the traditional baculovirus expression for small scale expression system in insect cells.
Collapse
Affiliation(s)
- A M Al-Sulaiman
- Department of Medical and Molecular Virology, PSMMC, Riyadh, Saudi Arabia
| | - P J Vallely
- Virology, Genomic Epidemiology Research Group, School of Translational Medicine, University of Manchester, Manchester, United Kingdom
| | - P E Klapper
- Clinical Virology, Manchester Medical Microbiology Partnership, Manchester Royal Infirmary, Manchester, United Kingdom
| | - Raid Al Baradie
- Medical Laboratory Department, CAMS, Majmaah University, Saudi Arabia
| | | | - Khalid K Alharbi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| |
Collapse
|
4
|
Liu J, Zhu R, Ye X, Yang L, Wang Y, Huang Y, Wu J, Wang W, Ye J, Li Y, Zhao Q, Zhu H, Cheng T, Xia N. A monoclonal antibody-based VZV glycoprotein E quantitative assay and its application on antigen quantitation in VZV vaccine. Appl Microbiol Biotechnol 2015; 99:4845-53. [PMID: 25935343 DOI: 10.1007/s00253-015-6602-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 04/07/2015] [Accepted: 04/20/2015] [Indexed: 02/05/2023]
Abstract
Varicella-zoster virus (VZV) is a highly infectious agent that causes varicella and herpes zoster (HZ), which may be associated with severe neuralgia. Vaccination is the most effective way to reduce the burden of the diseases. VZV glycoprotein E (gE) is the major and most immunogenic membrane protein that plays important roles in vaccine efficacy. A quantitative assay for gE content is desirable for the VZV vaccine process monitoring and product analysis. In this study, 70 monoclonal antibodies (mAbs) were obtained after immunizing mice with purified recombinant gE (rgE). The collection of mAbs was well-characterized, and a pair of high-affinity neutralization antibodies (capture mAb 4A2 and detection mAb 4H10) was selected to establish a specific and sensitive sandwich enzyme-linked immunosorbent assay (ELISA) to quantify the native and recombinant gE. The detection limit of this assay was found to be 1.95 ng/mL. Furthermore, a reasonably good correlation between the gE content (as measured by the mAb-based quantitative ELISA) and the virus titer (as measured by the "gold standard" plaque assay) was observed when both assays were performed for tracking the kinetics of virus growth during cell culture. A total of 16 batches of lyophilized VZV vaccine were tested using the newly developed quantitative ELISA and classical plaque assay, demonstrating reasonably good correlation between gE content and virus titer. Therefore, this mAb-based gE quantitative assay serves as a rapid, stable, and sensitive method for monitoring viral antigen content, one additional quantitative method for VZV vaccine process and product characterization. This quantitative ELISA may also serve as a complementary method for virus titering.
Collapse
Affiliation(s)
- Jian Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, 361102, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Wang ZH, Gershon MD, Lungu O, Zhu Z, Mallory S, Arvin AM, Gershon AA. Essential role played by the C-terminal domain of glycoprotein I in envelopment of varicella-zoster virus in the trans-Golgi network: interactions of glycoproteins with tegument. J Virol 2001; 75:323-40. [PMID: 11119602 PMCID: PMC113926 DOI: 10.1128/jvi.75.1.323-340.2001] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2000] [Accepted: 09/28/2000] [Indexed: 11/20/2022] Open
Abstract
Varicella-zoster virus (VZV) is enveloped in the trans-Golgi network (TGN). Here we report that glycoprotein I (gI) is required within the TGN for VZV envelopment. Enveloping membranous TGN cisternae were microscopically identified in cells infected with intact VZV. These sacs curved around, and ultimately enclosed, nucleocapsids. Tegument coated the concave face of these sacs, which formed the viral envelope, but the convex surface was tegument-free. TGN cisternae of cells infected with VZV mutants lacking gI (gI(Delta)) or its C (gI(DeltaC))- or N-terminal (gI(DeltaN))-terminal domains were uniformly tegument coated and adhered to one another, forming bizarre membranous stacks. Viral envelopment was compromised, and no virions were delivered to post-Golgi structures. The TGN was not gI-immunoreactive in cells infected with the gI(Delta) or gI(DeltaN) mutants, but it was in cells infected with gI(DeltaC) (because the ectodomains of gI and gE interact). The presence in the TGN of gI lacking a C-terminal domain, therefore, was not sufficient to maintain enveloping cisternae. In cells infected with intact VZV or with gI(Delta), gI(DeltaN), or gI(DeltaC) mutants, ORF10p immunoreactivity was concentrated on the cytosolic face of TGN membranes, suggesting that it interacts with the cytosolic domains of glycoproteins. Because of the gE-gI interaction, cotransfected cells that expressed gE or gI were able to target truncated forms of the other to the TGN. Our data suggest that the C-terminal domain of gI is required to segregate viral and cellular proteins in enveloping TGN cisternae.
Collapse
Affiliation(s)
- Z H Wang
- Institute of Human Nutrition, Columbia University, New York, New York 10032, USA
| | | | | | | | | | | | | |
Collapse
|
6
|
Wang ZH, Gershon MD, Lungu O, Zhu Z, Gershon AA. Trafficking of varicella-zoster virus glycoprotein gI: T(338)-dependent retention in the trans-Golgi network, secretion, and mannose 6-phosphate-inhibitable uptake of the ectodomain. J Virol 2000; 74:6600-13. [PMID: 10864674 PMCID: PMC112170 DOI: 10.1128/jvi.74.14.6600-6613.2000] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The trans-Golgi network (TGN) is putatively the site where varicella-zoster virus is enveloped. gE is targeted to the TGN by selective retrieval from the plasmalemma in response to signaling sequences in its endodomain. gI lacks these sequences but forms a complex with gE. We now find that gI is targeted to the TGN and plasma membrane when expressed in Cos-7 cells; nevertheless, surface labeling revealed that gI is not retrieved from the plasma membrane. TGN targeting of gI depended on the T(338) of its endodomain and was lost when T(338) was deleted or mutated to A, S, or D. The endodomain of gI was sufficient, if it contained T(338), to target a fusion protein containing the ectodomain of the human interleukin-2 receptor to the TGN. A truncated protein consisting only of the gI ectodomain was secreted and taken up by nontransfected cells. This uptake of the secreted gI ectodomain was blocked by mannose 6-phosphate. Following cotransfection, both gI and gE were retrieved to the TGN from the plasma membrane in 26.7% of cells, neither gI nor gE was internalized in 18.3%, and gE was retrieved to the TGN while gI remained at the plasma membrane in 55%. We suggest that the T(338) of its endodomain is necessary to retain gI in the TGN; moreover, because gI and gE interact, the signaling sequences of each glycoprotein reinforce one another in ensuring that both glycoproteins are concentrated in the TGN yet remain on the cell surface.
Collapse
Affiliation(s)
- Z H Wang
- Institute of Human Nutrition, Columbia University College of Physicians and Surgeons, New York, New York 10032, USA
| | | | | | | | | |
Collapse
|