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Munasinghe E, Athapaththu M, Abeyewickreme W. Immuno-dominant dengue NS1 peptides as antigens for production of monoclonal antibodies. Front Mol Biosci 2022; 9:935456. [PMID: 36339720 PMCID: PMC9635855 DOI: 10.3389/fmolb.2022.935456] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 10/04/2022] [Indexed: 08/23/2023] Open
Abstract
Synthetic peptides have recently become common as antigens for antibody production. Peptides are short chains of amino acids that can be used to elicit an immune response. The immunogenicity of the peptide antigens varies depending on the length, charge, solubility, and amino acids contained in the peptide sequence. Dengue NS1 protein is an important target antigen in the early detection of dengue infection. In this study, peptides corresponding to a highly conserved region from the dengue NS1 region were designed and synthesized. Balb/C mice were immunized against each peptide and spleen cells extracted from the immunized mice were fused with NS0 murine myeloma cells. Hybridoma clones obtained from the fusions were tested against peptides using ELISA. Out of 1,830 growing clones, 28 clones produced antibodies reacting with dengue NS1 peptides. A purified monoclonal antibody reacting with all four peptides was tested for reactivity with dengue NS1 native protein using dengue-confirmed serum and urine samples. The monoclonal antibody shows significant reactivity with both serum and urine. The findings of the current research can be used to detect dengue infection using urine, which ultimately results in the prevention of dengue epidemics through painless diagnosis, following treatment, and patient management to safeguard human and economic wellness.
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Affiliation(s)
| | | | - Wimaladharma Abeyewickreme
- Department of Para Clinical Sciences, Faculty of Medicine, General Sir John Kotelawala Defence University, Ratmalana, Sri Lanka
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2
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Allonso D, Pereira IB, Alves AM, Kurtenbach E, Mohana-Borges R. Expression of soluble, glycosylated and correctly folded dengue virus NS1 protein in Pichia pastoris. Protein Expr Purif 2019; 162:9-17. [PMID: 31077812 DOI: 10.1016/j.pep.2019.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 04/09/2019] [Accepted: 05/07/2019] [Indexed: 10/26/2022]
Abstract
The dengue virus (DENV) non structural protein 1 (NS1) is a 46-55 kDa protein that exists as homodimer inside cells and as hexamer in the extracellular milieu. Several lines of evidence have demonstrated that the biochemical and structural properties of recombinant NS1 (rNS1) vary depending on the protein expression system used. Aiming to improve current tools for studying NS1 multiple roles, a recombinant tag-free NS1 protein was expressed and purified from P. pastoris yeast cells. The best expression condition was achieved using GS115 strain and induction for 72 h with 0.7% methanol addition every 24 h. Total secreted rNS1 reached 2.18 mg in 1 L culture and the final yield of the purified protein was 1 mg per liter of culture (recovery yield of approximately 45.9%). Size-exclusion chromatography and treatment with EndoH and PNGase indicate that it exists as an N-glycosylated homodimer. Moreover, an ELISA assay with specific DENV anti-NS1 antibody that recognizes conformational epitopes revealed that rNS1 has most of its conformational epitopes preserved. The expression of rNS1 in its native conformation is an important tool for further studies of its role in DENV pathogenesis and replication.
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Affiliation(s)
- Diego Allonso
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Federal University of Rio de Janeiro, Brazil; Laboratory of Biotechnology and Structural Bioengineering, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Brazil
| | - Iuri B Pereira
- Laboratory of Biochemistry and Molecular Biology of Proteins, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Brazil
| | - Ada Mb Alves
- Laboratory of Biotechnology and Physiology of Virus Infections, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Eleonora Kurtenbach
- Laboratory of Biochemistry and Molecular Biology of Proteins, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Brazil
| | - Ronaldo Mohana-Borges
- Laboratory of Biotechnology and Structural Bioengineering, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Brazil.
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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.
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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:
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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.
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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.
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Puspasari F, Putri RD, Aisyah, Damayanti RRR, Yuwita A, Alisjahbana B, Handali S, Ihsanawati, Natalia D. Construction and expression of a synthetic gene encoding nonstructural glycoprotein NS1 of dengue 2 virus in Pichia pastoris. Asian Pac J Trop Biomed 2017. [DOI: 10.1016/j.apjtb.2017.07.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Bian X, Wiktor P, Kahn P, Brunner A, Khela A, Karthikeyan K, Barker K, Yu X, Magee M, Wasserfall CH, Gibson D, Rooney ME, Qiu J, LaBaer J. Antiviral antibody profiling by high-density protein arrays. Proteomics 2015; 15:2136-45. [PMID: 25758251 PMCID: PMC4545592 DOI: 10.1002/pmic.201400612] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 02/12/2015] [Accepted: 03/07/2015] [Indexed: 12/14/2022]
Abstract
Viral infections elicit antiviral antibodies and have been associated with various chronic diseases. Detection of these antibodies can facilitate diagnosis, treatment of infection, and understanding of the mechanisms of virus-associated diseases. In this work, we assayed antiviral antibodies using a novel high-density nucleic acid programmable protein array (HD-NAPPA) platform. Individual viral proteins were expressed in situ directly from plasmids encoding proteins in an array of microscopic reaction chambers. Quality of protein display and serum response was assured by comparing intra- and inter-array correlation within or between printing batches with average correlation coefficients of 0.91 and 0.96, respectively. HD-NAPPA showed higher signal-to-background ratio compared with standard NAPPA on planar glass slides and ELISA. Antibody responses to 761 antigens from 25 different viruses were profiled among patients with juvenile idiopathic arthritis and type 1 diabetes. Common and unique antibody reactivity patterns were detected between patients and healthy controls. We believe HD-viral-NAPPA will enable the study of host-pathogen interactions at unprecedented dimensions and elucidate the role of pathogen infections in disease development.
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Affiliation(s)
- Xiaofang Bian
- The Virginia G. Piper Center for Personalized Diagnostics, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Peter Wiktor
- Center for Bioelectronics and Biosensors, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Peter Kahn
- Engineering Arts LLC, Tempe, AZ, 85281, USA
| | - Al Brunner
- Engineering Arts LLC, Tempe, AZ, 85281, USA
| | - Amritpal Khela
- The Virginia G. Piper Center for Personalized Diagnostics, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Kailash Karthikeyan
- The Virginia G. Piper Center for Personalized Diagnostics, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Kristi Barker
- The Virginia G. Piper Center for Personalized Diagnostics, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Xiaobo Yu
- The Virginia G. Piper Center for Personalized Diagnostics, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Mitch Magee
- The Virginia G. Piper Center for Personalized Diagnostics, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Clive H. Wasserfall
- Department of Pathology, Immunology and Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FL 32603, USA
| | - David Gibson
- Northern Ireland Centre for Stratified Medicine, Ulster University, C-TRIC, Glenshane Road, Londonderry, BT47 6SB, UK
| | - Madeleine E Rooney
- Arthritis Research Group, Centre for Infection and Immunity, Health Science Building, Queen’s University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Ji Qiu
- The Virginia G. Piper Center for Personalized Diagnostics, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
| | - Joshua LaBaer
- The Virginia G. Piper Center for Personalized Diagnostics, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA
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Dengue patients exhibit higher levels of PrM and E antibodies than their asymptomatic counterparts. BIOMED RESEARCH INTERNATIONAL 2015; 2015:420867. [PMID: 25815314 PMCID: PMC4359815 DOI: 10.1155/2015/420867] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 02/09/2015] [Accepted: 02/12/2015] [Indexed: 12/21/2022]
Abstract
Dengue virus infection is a common tropical disease which often occurs without being detected. These asymptomatic cases provide information in relation to the manifestation of immunological aspects. In this study, we developed an ELISA method to compare neutralizing effects of dengue prM and E antibodies between dengue patients and their asymptomatic household members. Recombinant D2 premembrane (prM) was constructed, cloned, and tested for antigenicity. The recombinant protein was purified and tested with controls by using an indirect ELISA method. Positive dengue serum samples with their asymptomatic pair were then carried out onto the developed ELISA. In addition, commercially available recombinant envelope (E) protein was used to develop an ELISA which was tested with the same set of serum samples in the prM ELISA. Asymptomatic individuals showed preexisting heterotypic neutralizing antibodies. The recombinant prM was antigenically reactive in the developed ELISA. Dengue patients had higher prM and E antibodies compared to their household members. Our study highlights the neutralizing antibodies levels with respect to dengue prM and E between dengue patients and asymptomatic individuals.
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Bragança CRS, Colombo LT, Roberti AS, Alvim MCT, Cardoso SA, Reis KCP, de Paula SO, da Silveira WB, Passos FML. Construction of recombinant Kluyveromyces marxianus UFV-3 to express dengue virus type 1 nonstructural protein 1 (NS1). Appl Microbiol Biotechnol 2014; 99:1191-203. [PMID: 25085614 DOI: 10.1007/s00253-014-5963-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 07/15/2014] [Accepted: 07/16/2014] [Indexed: 10/25/2022]
Abstract
The yeast Kluyveromyces marxianus is a convenient host for industrial synthesis of biomolecules. However, despite its potential, there are few studies reporting the expression of heterologous proteins using this yeast. Here, we report expression of a dengue virus protein in K. marxianus for the first time. The dengue virus type 1 nonstructural protein 1 (NS1) was integrated into the K. marxianus UFV-3 genome at the LAC4 locus using an adapted integrative vector designed for high-level expression of recombinant protein in Kluyveromyces lactis. The NS1 gene sequence was codon-optimized to increase the level of protein expression in yeast. The synthetic gene was cloned in frame with K. lactis α-mating factor signal peptide, and the recombinant plasmid obtained was used to transform K. marxianus UFV-3 by electroporation. The transformed cells, selected in yeast extract peptone dextrose containing 200 μg mL(-1) Geneticin, were mitotically stable. Analysis of recombinant strains by RT-PCR and protein detection using blot analysis confirmed both transcription and expression of extracellular NS1 polypeptide. After induction with galactose, the NS1 protein was analyzed by sodium dodecyl sulfate-PAGE and immunogenic detection. Protein production was investigated under two conditions: with galactose and biotin pulses at 24-h intervals during 96 h of induction and without galactose and biotin supplementation. Protease activity was not detected in post-growth medium. Our results indicate that recombinant K. marxianus is a good host for the production of dengue virus NS1 protein, which has potential for diagnostic applications.
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Affiliation(s)
- Caio Roberto Soares Bragança
- Laboratório de Fisiologia de Micro-organismos, Departamento de Microbiologia, BIOAGRO, Universidade Federal de Viçosa, Viçosa, MG, Brazil
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Fermentation and downstream process for high yield production of Plasmodium falciparum recombinant HRP II protein and its application in diagnosis. J Ind Microbiol Biotechnol 2013; 40:687-95. [PMID: 23608778 DOI: 10.1007/s10295-013-1270-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Accepted: 04/01/2013] [Indexed: 10/26/2022]
Abstract
Malaria represents the world's greatest public health problem in terms of number of people affected, levels of morbidity and mortality in tropical and subtropical countries. Malaria parasites are members of the Apicomplexa, family of Plasmodiidae. Histidine-rich protein-II secreted by Plasmodium falciparum is known to be a compelling marker in malaria diagnosis and follow-up. In our present study, we have optimized the batch fermentation and downstream process for large scale production of recombinant P. falciparum HRP-II 62 kDa protein for diagnostic application. The culture broth was effectively induced with IPTG twice at different time intervals to sustain induction for a long period. Batch fermentation resulted in a wet weight of 61.34 g/L and dry cell biomass 12.81 g/L. With the improved downstream process, purified recombinant protein had a yield of 304.60 mg/L. The authenticity of the purified recombinant protein was confirmed via western blotting using indigenously developed HRP-II specific monoclonal antibodies and known positive human clinical sera samples. Further, the reactivity of recombinant HRP-II protein was validated using commercially available immuno chromatographic strips. Indirect ELISA using recombinant purified protein recognized the P. falciparum specific antibodies in suspected human sera samples. Our results clearly suggest that the recombinant HRP-II protein produced via batch fermentation has immense potential for routine diagnostic application.
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