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Nguyen HT, Falzarano D, Gerdts V, Liu Q. Construction and immunogenicity of SARS-CoV-2 virus-like particle expressed by recombinant baculovirus BacMam. Microbiol Spectr 2024:e0095924. [PMID: 38916311 DOI: 10.1128/spectrum.00959-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 05/13/2024] [Indexed: 06/26/2024] Open
Abstract
The pandemic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) continues to evolve to give rise to variants of concern that can escape vaccine-induced immunity. As such, more effective vaccines are urgently needed. In this study, we evaluated virus-like particle (VLP) as a vaccine platform for SARS-CoV-2. The spike, envelope, and membrane proteins of the SARS-CoV-2 Wuhan strain were expressed by a single recombinant baculovirus BacMam and assembled into VLPs in cell culture. The morphology and size of the SARS-CoV-2 VLP as shown by transmission electron microscopy were similar to the authentic SARS-CoV-2 virus particle. In a mouse trial, two intramuscular immunizations of the VLP BacMam with no adjuvant elicited spike-specific binding antibodies in both sera and bronchoalveolar lavage fluids. Importantly, BacMam VLP-vaccinated mouse sera showed neutralization activity against SARS-CoV-2 spike pseudotyped lentivirus. Our results indicated that the SARS-CoV-2 VLP BacMam stimulated spike-specific immune responses with neutralization activity. IMPORTANCE Although existing vaccines have significantly mitigated the impact of the COVID-19 pandemic, none of the vaccines can induce sterilizing immunity. The spike protein is the main component of all approved vaccines for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) due primarily to its ability to induce neutralizing antibodies. The conformation of the spike protein in the vaccine formulation should be critical for the efficacy of a vaccine. By way of closely resembling the authentic virions, virus-like particles (VLPs) should render the spike protein in its natural conformation. To this end, we utilized the baculovirus vector, BacMam, to express virus-like particles consisting of the spike, membrane, and envelope proteins of SARS-CoV-2. We demonstrated the immunogenicity of our VLP vaccine with neutralizing activity. Our data warrant further evaluation of the virus-like particles as a vaccine candidate in protecting against virus challenges.
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Affiliation(s)
- Hai Trong Nguyen
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Darryl Falzarano
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, Saskatchewan, Canada
- Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Volker Gerdts
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, Saskatchewan, Canada
- Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Qiang Liu
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, Saskatchewan, Canada
- Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
- Vaccinology and Immunotherapeutics, School of Public Health, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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2
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Baculovirus Display of Peptides and Proteins for Medical Applications. Viruses 2023; 15:v15020411. [PMID: 36851625 PMCID: PMC9962271 DOI: 10.3390/v15020411] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 01/27/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023] Open
Abstract
Baculoviridae is a large family of arthropod-infective viruses. Recombinant baculoviruses have many applications, the best known is as a system for large scale protein production in combination with insect cell cultures. More recently recombinant baculoviruses have been utilized for the display of proteins of interest with applications in medicine. In the present review we analyze the different strategies for the display of proteins and peptides on the surface of recombinant baculoviruses and provide some examples of the different proteins displayed. We analyze briefly the commercially available systems for recombinant baculovirus production and display and discuss the future of this emerging and powerful technology.
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3
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Kord E, Roohvand F, Dubuisson J, Vausselin T, Nasr Azadani H, Keshavarz A, Nejati A, Samimi-Rad K. BacMam virus-based surface display for HCV E2 glycoprotein induces strong cross-neutralizing antibodies and cellular immune responses in vaccinated mice. Infect Agent Cancer 2021; 16:69. [PMID: 34922563 PMCID: PMC8684228 DOI: 10.1186/s13027-021-00407-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 11/18/2021] [Indexed: 12/01/2022] Open
Abstract
Background Despite recent advancements, limitations in the treatment and control of hepatitis C virus (HCV) infection reprioritized the studies for invention of an efficient HCV vaccine to elicit strong neutralizing antibodies (NAbs) and cellular responses. Methods Herein, we report molecular construction of a BacMam virus-based surface display for a subtype-1a HCV gpE2 (Bac-CMV-E2-gp64; Bac) that both expressed and displayed gpE2 in mammalian cells and bacouloviral envelope, respectively. Results Assessments by western blotting, Immunofluorescence and Immunogold-electron microscopy indicated the proper expression and incorporation in insect cell and baculovirus envelope, respectively. Mice immunized in three different prime-boost immunization groups of: Bac/Bac, Bac/Pro (bacoulovirus-derived gpE2) and Bac/DNA (plasmid DNA (pCDNA)-encoding gpE2) developed high levels of IgG and IFN-γ (highest for Bac/Bac group) indicating the induction of both humeral and cellular immune responses. Calculation of the IgG2a/IgG1 and IFN-γ/IL-4 ratios indicated a Th1 polarization of immune responses in the Bac/Bac and Bac/DNA groups but a balanced Th1-Th2 phenotype in the Bac/Pro group. Sera of the mice in the Bac/Bac group provided the highest percentage of cross-NAbs against a subtype-2a HCVcc (JFH1) compared to Bac/Pro and Bac/DNA groups (62% versus 41% and 6%). Conclusions Results indicated that BacMam virus-based surface display for gpE2 might act as both subunit and DNA vaccine and offers a promising strategy for development of HCV vaccine for concurrent induction of strong humoral and cellular immune responses. Supplementary Information The online version contains supplementary material available at 10.1186/s13027-021-00407-x.
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Affiliation(s)
- Ebrahim Kord
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Enqelab Square, P.O. Box 1417613151, Tehran, Iran.,Infectious Diseases and Tropical Medicine Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Farzin Roohvand
- Department of Virology, Pasteur Institute of Iran (IPI), No. 69, Pasteur Ave, P.O. Box 1316943551, Tehran, Iran
| | - Jean Dubuisson
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, Batiment, IBL, CS50477, Molecular & Cellular Virology, U1019 - UMR 8204 - CIIL- Center for Infection and Immunity of Lille, University Lille, 59021, Lille Cedex, France
| | - Thibaut Vausselin
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, Batiment, IBL, CS50477, Molecular & Cellular Virology, U1019 - UMR 8204 - CIIL- Center for Infection and Immunity of Lille, University Lille, 59021, Lille Cedex, France
| | - Hosein Nasr Azadani
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Enqelab Square, P.O. Box 1417613151, Tehran, Iran
| | - Abolfazl Keshavarz
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Enqelab Square, P.O. Box 1417613151, Tehran, Iran
| | - Ahmad Nejati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Enqelab Square, P.O. Box 1417613151, Tehran, Iran
| | - Katayoun Samimi-Rad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Enqelab Square, P.O. Box 1417613151, Tehran, Iran.
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4
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Zhang Y, Yuan Y, Zhang LH, Zhu D, Wang L, Wei LP, Fan WS, Zhao CR, Su YJ, Liao JQ, Yong L, Wei TC, Wei P, Mo ML. Construction and Immunogenicity Comparison of Three Virus-Like Particles Carrying Different Combinations of Structural Proteins of Avian Coronavirus Infectious Bronchitis Virus. Vaccines (Basel) 2021; 9:vaccines9020146. [PMID: 33670249 PMCID: PMC7918244 DOI: 10.3390/vaccines9020146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/27/2021] [Accepted: 02/09/2021] [Indexed: 12/15/2022] Open
Abstract
Infectious bronchitis virus (IBV) poses massive economic losses in the global poultry industry. Here, we firstly report the construction and immunogenicity comparison of virus-like particles (VLPs) carrying the S, M and E proteins (SME-VLPs); VLPs carrying the S and M proteins (SM-VLPs); and VLPs carrying the M and E proteins (ME-VLPs) from the dominant serotype representative strain GX-YL5 in China. The neutralizing antibody response induced by the SME-VLPs was similar to that induced by the inactivated oil vaccine (OEV) of GX-YL5, and higher than those induced by the SM-VLPs, ME-VLPs and commercial live vaccine H120. More importantly, the SME-VLPs elicited higher percentages of CD4+ and CD8+ T lymphocytes than the SM-VLPs, ME-VLPs and OEV of GX-YL5. Compared with the OEV of GX-YL5, higher levels of IL-4 and IFN-γ were also induced by the SME-VLPs. Moreover, the mucosal immune response (sIgA) induced by the SME-VLPs in the tear and oral swabs was comparable to that induced by the H120 vaccine and higher than that induced by the OEV of GX-YL5. In the challenge experiment, the SME-VLPs resulted in significantly lower viral RNA levels in the trachea and higher protection scores than the OEV of GX-YL5 and H120 vaccines, and induced comparable viral RNA levels in the kidneys, and tear and oral swabs to the OEV of GX-YL5. In summary, among the three VLPs, the SME-VLPs carrying the S, M and E proteins of IBV could stimulate the strongest humoral, cellular and mucosal immune responses and provide effective protection, indicating that it would be an attractive vaccine candidate for IB.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Ping Wei
- Correspondence: (P.W.); (M.-L.M.); Tel.: +86-771-323-5638 (P.W.); +86-771-323-5635 (M.-L.M.)
| | - Mei-Lan Mo
- Correspondence: (P.W.); (M.-L.M.); Tel.: +86-771-323-5638 (P.W.); +86-771-323-5635 (M.-L.M.)
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5
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Wu Q, Lin Z, Wu J, Qian K, Shao H, Ye J, Qin A. Peptide enzyme-linked immunosorbent assay (pELISA) as a possible alternative to the neutralization test for evaluating the immune response to IBV vaccine. BMC Vet Res 2021; 17:51. [PMID: 33494765 PMCID: PMC7830047 DOI: 10.1186/s12917-021-02757-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 01/12/2021] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Infectious bronchitis virus (IBV), a coronavirus, is one of the most important poultry pathogens worldwide due to its multiple serotypes and poor cross-protection. Vaccination plays a vital role in controlling the disease. The efficacy of vaccination in chicken flocks can be evaluated by detecting neutralizing antibodies with the neutralization test. However there are no simple and rapid methods for detecting the neutralizing antibodies. RESULTS In this study, a peptide enzyme-linked immunosorbent assay (pELISA) as a possible alternative to the neutralization test for evaluating the immune response to IBV vaccine was developed. The pELISA could indirect evaluate neutralizing antibody titers against different types of IBV in all tested sera. The titers measured with the pELISA had a coefficient of 0.83 for neutralizing antibody titers. CONCLUSIONS The pELISA could detect antibodies against different types of IBV in all tested sera. The pELISA has the potential to evaluate samples for IBV-specific neutralizing antibodies and surveillance the infection of IBV.
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Affiliation(s)
- Qi Wu
- Key Laboratory of Avian Preventive Medicine, Ministry of Education, Yangzhou University, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China.,Jiangsu Key Lab of Zoonosis, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China
| | - Zhixian Lin
- Key Laboratory of Avian Preventive Medicine, Ministry of Education, Yangzhou University, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China.,Jiangsu Key Lab of Zoonosis, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China
| | - Jinsen Wu
- Key Laboratory of Avian Preventive Medicine, Ministry of Education, Yangzhou University, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China.,Jiangsu Key Lab of Zoonosis, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China
| | - Kun Qian
- Key Laboratory of Avian Preventive Medicine, Ministry of Education, Yangzhou University, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China.,Jiangsu Key Lab of Zoonosis, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China.,The International Joint Laboratory for Cooperation in Agriculture and Agricultural Product Safety, Ministry of Education, Yangzhou University, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China
| | - Hongxia Shao
- Key Laboratory of Avian Preventive Medicine, Ministry of Education, Yangzhou University, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China.,Jiangsu Key Lab of Zoonosis, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China.,The International Joint Laboratory for Cooperation in Agriculture and Agricultural Product Safety, Ministry of Education, Yangzhou University, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China
| | - Jianqiang Ye
- Key Laboratory of Avian Preventive Medicine, Ministry of Education, Yangzhou University, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China. .,Jiangsu Key Lab of Zoonosis, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China. .,The International Joint Laboratory for Cooperation in Agriculture and Agricultural Product Safety, Ministry of Education, Yangzhou University, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China. .,Ministry of Education Key Lab for Avian Preventive Medicine, Yangzhou University, No. 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China.
| | - Aijian Qin
- Key Laboratory of Avian Preventive Medicine, Ministry of Education, Yangzhou University, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China. .,Jiangsu Key Lab of Zoonosis, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China. .,The International Joint Laboratory for Cooperation in Agriculture and Agricultural Product Safety, Ministry of Education, Yangzhou University, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China. .,Ministry of Education Key Lab for Avian Preventive Medicine, Yangzhou University, No. 12 East Wenhui Road, 225009, Yangzhou, Jiangsu, P.R. China.
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Design and Characterization of a DNA Vaccine Based on Spike with Consensus Nucleotide Sequence against Infectious Bronchitis Virus. Vaccines (Basel) 2021; 9:vaccines9010050. [PMID: 33466810 PMCID: PMC7830736 DOI: 10.3390/vaccines9010050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/10/2021] [Accepted: 01/11/2021] [Indexed: 11/18/2022] Open
Abstract
Avian coronavirus infectious bronchitis virus (IBV) causes severe economic losses in the poultry industry, but its control is hampered by the continuous emergence of new genotypes and the lack of cross-protection among different IBV genotypes. We designed a new immunogen based on a spike with the consensus nucleotide sequence (S_con) that may overcome the extraordinary genetic diversity of IBV. S_con was cloned into a pVAX1 vector to form a new IBV DNA vaccine, pV-S_con. pV-S_con could be correctly expressed in HD11 cells with corresponding post-translational modification, and induced a neutralizing antibody response to the Vero-cell-adapted IBV strain Beaudette (p65) in mice. To further evaluate its immunogenicity, specific-pathogen-free (SPF) chickens were immunized with the pV-S_con plasmid and compared with the control pVAX1 vector and the H120 vaccine. Detection of IBV-specific antibodies and cell cytokines (IL-4 and IFN-γ) indicated that vaccination with pV-S_con efficiently induced both humoral and cellular immune responses. After challenge with the heterologous strain M41, virus shedding and virus loading in tissues was significantly reduced both by pV-S_con and its homologous vaccine H120. Thus, pV-S_con is a promising vaccine candidate for IBV, and the consensus approach is an appealing method for vaccine design in viruses with high variability.
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7
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Fragoso-Saavedra M, Vega-López MA. Induction of mucosal immunity against pathogens by using recombinant baculoviral vectors: Mechanisms, advantages, and limitations. J Leukoc Biol 2020; 108:835-850. [PMID: 32392638 DOI: 10.1002/jlb.4mr0320-488r] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/19/2020] [Accepted: 04/09/2020] [Indexed: 12/13/2022] Open
Abstract
Over 90% of pathogens of medical importance invade the organism through mucosal surfaces, which makes it urgent to develop safe and effective mucosal vaccines and mucosal immunization protocols. Besides, parenteral immunization does not provide adequate protective immunity in mucosal surfaces. Effective mucosal vaccination could protect local and systemic compartments and favor herd immunity. Although various mucosal adjuvants and Ag-delivery systems have been developed, none has filled the gap to control diseases caused by complex mucosal pathogens. Among the strategies to counteract them, recombinant virions from the baculovirus Autographa californica multiple nucleopolyhedrovirus (rAcMNPV) are useful vectors, given their safety and efficacy to produce mucosal and systemic immunity in animal infection models. Here, we review the immunogenic properties of rAcMNPV virions from the perspectives of mucosal immunology and vaccinology. Some features, which are analyzed and extrapolated from studies with different particulate antigens, include size, shape, surface molecule organization, and danger signals, all needed to break the tolerogenic responses of the mucosal immune tissues. Also, we present a condensed discussion on the immunity provided by rAcMNPV virions against influenza virus and human papillomavirus in animal models. Through the text, we highlight the advantages and limitations of this experimental immunization platform.
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Affiliation(s)
- Mario Fragoso-Saavedra
- Laboratorio de Inmunobiología de las Mucosas, Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Colonia Zacatenco, Ciudad de México, México
| | - Marco A Vega-López
- Laboratorio de Inmunobiología de las Mucosas, Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Colonia Zacatenco, Ciudad de México, México
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8
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Expression and immunoreactivity of a recombinant multi-epitope antigen designed based on four major structural proteins of avian infectious bronchitis virus. 3 Biotech 2020; 10:86. [PMID: 32089981 DOI: 10.1007/s13205-020-2079-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 01/20/2020] [Indexed: 10/25/2022] Open
Abstract
The development of rapid, simple, and sensitive diagnostic methods for identification of avian infectious bronchitis virus (IBV) is crucial for the effective control of avian infectious bronchitis. In the present study, a tandemly arranged multiepitope peptide (named SEMN) was designed with four antigenic regions derived from four major structural proteins of IBV. Then, we performed codon optimization of SEMN gene by changing the codon-adaptation index from 0.45 to 0.94 and expressed the optimized gene in codon bias-adjusted Escherichia coli Rosetta (DE3), followed by determination of the immunoreactivity of the purified protein. Bioinformatics analysis of SEMN showed a high antigenicity, surface probability and hydrophilicity. The recombinant protein rSEMN was expressed both in soluble forms and as inclusion bodies, and the molecular weight of rSEMN was about 39 kDa. The preliminary diagnostic performance of rSEMN was confirmed by Western blotting analysis using chicken anti-IBV polyclonal antibodies. Further studies are needed to evaluate the immunogenicity in animal models and to give a final assessment of the diagnostic utility of this recombinant multi-epitope antigen.
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9
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Kato A, Oguro S, Kurihara Y, Kojima H, Inayoshi Y, Lin Z, Sasakawa C, Shibuya K. Repeated avian infectious bronchitis virus infections within a single chicken farm. J Vet Med Sci 2019; 81:636-640. [PMID: 30828040 PMCID: PMC6483923 DOI: 10.1292/jvms.18-0722] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Genotyping of avian infectious bronchitis virus (IBV) was performed on trachea and kidney
samples of six chickens obtained from a single farm in Japan. Using two primer sets
targeting the spike (S) protein gene, the S1 and S2 regions of DNA fragments were
amplified. Sequences of amplified S1 fragments extracted from both organs were identical
among the six chickens, showing a JP-I genotype. Sequences of amplified S2 fragments
differed between trachea and kidney samples. The kidney profile showed a group IV
genotype, whereas the trachea profile showed an unclassified group. This result showed
that two different IBVs infected the six chickens. The first IBV infection induced poor
protective immunity in this farm, permitting a second IBV infection to occur.
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Affiliation(s)
- Atsushi Kato
- Nippon Institute for Biological Science, 9-2221-1 Shin-machi, Ome, Tokyo 198-0024, Japan
| | - Shiori Oguro
- Nippon Institute for Biological Science, 9-2221-1 Shin-machi, Ome, Tokyo 198-0024, Japan
| | - Yukino Kurihara
- Nippon Institute for Biological Science, 9-2221-1 Shin-machi, Ome, Tokyo 198-0024, Japan
| | - Hiroe Kojima
- Nippon Institute for Biological Science, 9-2221-1 Shin-machi, Ome, Tokyo 198-0024, Japan
| | - Yujin Inayoshi
- Nippon Institute for Biological Science, 9-2221-1 Shin-machi, Ome, Tokyo 198-0024, Japan
| | - Zhifeng Lin
- Nippon Institute for Biological Science, 9-2221-1 Shin-machi, Ome, Tokyo 198-0024, Japan
| | - Chihiro Sasakawa
- Nippon Institute for Biological Science, 9-2221-1 Shin-machi, Ome, Tokyo 198-0024, Japan.,Medical Mycology Research Center, Chiba University, 1-8-1 Inohana, Chiba 260-8673, Japan
| | - Kazumoto Shibuya
- Nippon Institute for Biological Science, 9-2221-1 Shin-machi, Ome, Tokyo 198-0024, Japan
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10
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Li J, Helal ZH, Karch CP, Mishra N, Girshick T, Garmendia A, Burkhard P, Khan MI. A self-adjuvanted nanoparticle based vaccine against infectious bronchitis virus. PLoS One 2018; 13:e0203771. [PMID: 30216376 PMCID: PMC6138407 DOI: 10.1371/journal.pone.0203771] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 08/27/2018] [Indexed: 12/21/2022] Open
Abstract
Infectious bronchitis virus (IBV) affects poultry respiratory, renal and reproductive systems. Currently the efficacy of available live attenuated or killed vaccines against IBV has been challenged. We designed a novel IBV vaccine alternative using a highly innovative platform called Self-Assembling Protein Nanoparticle (SAPN). In this vaccine, B cell epitopes derived from the second heptad repeat (HR2) region of IBV spike proteins were repetitively presented in its native trimeric conformation. In addition, flagellin was co-displayed in the SAPN to achieve a self-adjuvanted effect. Three groups of chickens were immunized at four weeks of age with the vaccine prototype, IBV-Flagellin-SAPN, a negative-control construct Flagellin-SAPN or a buffer control. The immunized chickens were challenged with 5x104.7 EID50 IBV M41 strain. High antibody responses were detected in chickens immunized with IBV-Flagellin-SAPN. In ex vivo proliferation tests, peripheral mononuclear cells (PBMCs) derived from IBV-Flagellin-SAPN immunized chickens had a significantly higher stimulation index than that of PBMCs from chickens receiving Flagellin-SAPN. Chickens immunized with IBV-Flagellin-SAPN had a significant reduction of tracheal virus shedding and lesser tracheal lesion scores than did negative control chickens. The data demonstrated that the IBV-Flagellin-SAPN holds promise as a vaccine for IBV.
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Affiliation(s)
- Jianping Li
- Department of Pathobiology and Veterinary Science University of Connecticut, Storrs, CT, United States of America
| | - Zeinab H. Helal
- Department of Pathobiology and Veterinary Science University of Connecticut, Storrs, CT, United States of America
- Department of Microbiology and Immunology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Christopher P. Karch
- The Institute of Material Sciences, University of Connecticut, Storrs, CT, United States of America
| | - Neha Mishra
- Department of Pathobiology and Veterinary Science University of Connecticut, Storrs, CT, United States of America
| | - Theodore Girshick
- Charles River Laboratories, Avian vaccine services, North Franklin, CT, United States of America
| | - Antonio Garmendia
- Department of Pathobiology and Veterinary Science University of Connecticut, Storrs, CT, United States of America
| | - Peter Burkhard
- The Institute of Material Sciences, University of Connecticut, Storrs, CT, United States of America
- Department of Molecular Cell Biology, University of Connecticut, Storrs, CT, United States of America
- Alpha-O-Peptides AG, Riehen, Switzerland
| | - Mazhar I. Khan
- Department of Pathobiology and Veterinary Science University of Connecticut, Storrs, CT, United States of America
- * E-mail:
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11
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Chang CY, Hsu WT, Chao YC, Chang HW. Display of Porcine Epidemic Diarrhea Virus Spike Protein on Baculovirus to Improve Immunogenicity and Protective Efficacy. Viruses 2018; 10:v10070346. [PMID: 29954081 PMCID: PMC6071207 DOI: 10.3390/v10070346] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 06/15/2018] [Accepted: 06/15/2018] [Indexed: 01/23/2023] Open
Abstract
A new variant of the porcine epidemic diarrhea virus (PEDV) is an emerging swine disease, killing considerable numbers of neonatal piglets in North America and Asia in recent years. To generate immunogens mimicking the complex spike (S) protein folding with proper posttranslational modification to mount a robust immune response against the highly virulent PEDV, two baculoviruses displaying the full-length S protein (S-Bac) and the S1 protein (S1-Bac) of the virulent Taiwan genotype 2b (G2b) PEDV Pintung 52 (PEDV-PT) strain were constructed. Intramuscular immunizations of mice and piglets with the S-Bac and S1-Bac demonstrated significantly higher levels of systemic anti-PEDV S-specific IgG, as compared with control group. Our results also showed that piglets in the S-Bac group elicited superior PEDV-specific neutralizing antibodies than those of the S1-Bac and control groups. The highly virulent PEDV-PT strain challenge experiment showed that piglets immunized with S-Bac and S1-Bac showed milder clinical symptoms with significantly less fecal viral shedding as compared with non-immunized control piglets. More importantly, piglets immunized with the S-Bac exhibited no to mild clinical signs, with a delayed, minimal viral shedding. Our results demonstrated that the S-Bac could serve as a safe, easy to manipulate, and effective vaccine candidate against the PEDV infection.
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Affiliation(s)
- Chia-Yu Chang
- School of Veterinary Medicine, National Taiwan University, Taipei 106, Taiwan.
| | - Wei-Ting Hsu
- Institute of Molecular Biology, Academia Sinica, Nankang, Taipei 115, Taiwan.
| | - Yu-Chan Chao
- Institute of Molecular Biology, Academia Sinica, Nankang, Taipei 115, Taiwan.
| | - Hui-Wen Chang
- School of Veterinary Medicine, National Taiwan University, Taipei 106, Taiwan.
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, Taipei 106, Taiwan.
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Yuan Y, Zhang ZP, He YN, Fan WS, Dong ZH, Zhang LH, Sun XK, Song LL, Wei TC, Mo ML, Wei P. Protection against Virulent Infectious Bronchitis Virus Challenge Conferred by a Recombinant Baculovirus Co-Expressing S1 and N Proteins. Viruses 2018; 10:v10070347. [PMID: 29954092 PMCID: PMC6071288 DOI: 10.3390/v10070347] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 06/06/2018] [Accepted: 06/22/2018] [Indexed: 01/31/2023] Open
Abstract
Avian infectious bronchitis virus (IBV) is the causative agent of infectious bronchitis, which results in considerable economic losses. It is imperative to develop safe and efficient candidate vaccines to control IBV infection. In the current study, recombinant baculoviruses co-expressing the S1 and N proteins and mono-expressing S1 or N proteins of the GX-YL5 strain of IBV were constructed and prepared into subunit vaccines rHBM-S1-N, rHBM-S1 and rHBM-N. The levels of immune protection of these subunit vaccines were evaluated by inoculating specific pathogen-free (SPF) chickens at 14 days of age, giving them a booster with the same dose 14 days later and challenging them with a virulent GX-YL5 strain of IBV 14 days post-booster (dpb). The commercial vaccine strain H120 was used as a control. The IBV-specific antibody levels, as well as the percentages of CD4+ and CD8+ T lymphocytes, were detected within 28 days post-vaccination (dpv). The morbidity, mortality and re-isolation of the virus from the tracheas and kidneys of challenged birds were evaluated at five days post-challenge (dpc). The results showed that the IBV-specific antibody levels and the percentages of CD4+ and CD8+ T lymphocytes were higher in the rHBM-S1-N vaccinated birds compared to birds vaccinated with the rHBM-S1 and rHBM-N vaccines. At 5 dpc, the mortality, morbidity and virus re-isolation rate of the birds vaccinated with the rHBM-S1-N vaccine were slightly higher than those vaccinated with the H120 control vaccine but were lower than those vaccinated with the rHBM-S1 and rHBM-N vaccines. The present study demonstrated that the protection of the recombinant baculovirus co-expressing S1 and N proteins was better than that of recombinant baculoviruses mono-expressing the S1 or N protein. Thus, the recombinant baculovirus co-expressing S1 and N proteins could serve as a potential IBV vaccine and this demonstrates that the bivalent subunit vaccine including the S1 and N proteins might be a strategy for the development of an IBV subunit vaccine.
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Affiliation(s)
- Yuan Yuan
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Zhi-Peng Zhang
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Yi-Ning He
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Wen-Sheng Fan
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Zhi-Hua Dong
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Li-Hua Zhang
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Xin-Kuan Sun
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Li-Li Song
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Tian-Chao Wei
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Mei-Lan Mo
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Ping Wei
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
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Premanand B, Zhong Wee P, Prabakaran M. Baculovirus Surface Display of Immunogenic Proteins for Vaccine Development. Viruses 2018; 10:E298. [PMID: 29857561 PMCID: PMC6024371 DOI: 10.3390/v10060298] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 05/22/2018] [Accepted: 05/28/2018] [Indexed: 12/25/2022] Open
Abstract
Vaccination is an efficient way to prevent the occurrence of many infectious diseases in humans. To date, several viral vectors have been utilized for the generation of vaccines. Among them, baculovirus-categorized as a nonhuman viral vector-has been used in wider applications. Its versatile features, like large cloning capacity, nonreplicative nature in mammalian cells, and broad tissue tropism, hold it at an excellent position among vaccine vectors. In addition to ease and safety during swift production, recent key improvements to existing baculovirus vectors (such as inclusion of hybrid promoters, immunostimulatory elements, etc.) have led to significant improvements in immunogenicity and efficacy of surface-displayed antigens. Furthermore, some promising preclinical results have been reported that mirror the scope and practicality of baculovirus as a vaccine vector for human applications in the near future. Herein, this review provides an overview of the induced immune responses by baculovirus surface-displayed vaccines against influenza and other infectious diseases in animal models, and highlights the strategies applied to enhance the protective immune responses against the displayed antigens.
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Affiliation(s)
- Balraj Premanand
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore 117604, Singapore.
| | - Poh Zhong Wee
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore 117604, Singapore.
| | - Mookkan Prabakaran
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore 117604, Singapore.
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Bayry J. Coronaviridae: Infectious Bronchitis Virus. EMERGING AND RE-EMERGING INFECTIOUS DISEASES OF LIVESTOCK 2017. [PMCID: PMC7122401 DOI: 10.1007/978-3-319-47426-7_5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Yin L, Zeng Y, Wang W, Wei Y, Xue C, Cao Y. Immunogenicity and protective efficacy of recombinant fusion proteins containing spike protein of infectious bronchitis virus and hemagglutinin of H3N2 influenza virus in chickens. Virus Res 2016; 223:206-12. [PMID: 27497621 PMCID: PMC7114550 DOI: 10.1016/j.virusres.2016.07.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 07/09/2016] [Accepted: 07/29/2016] [Indexed: 02/03/2023]
Abstract
We generate fused S1 proteins with HA2 (rS1-HA2) or HA transmembrane domain and cytoplasmic tail (rS1-H3(TM)) of H3N2 influenza virus. The two recombinant fusion proteins rS1-HA2 and rS1-H3(TM) are superior to rS1 protein in terms of immunogenicity and protective efficacy. The strategy of fusing TMs or HA2 of HA proteins may provide a new strategy for development of high efficacy recombinant vaccine against IBV.
Infectious bronchitis (IB) is an acute and highly contagious viral respiratory disease of chickens and vaccination is the main method for disease control. The S1 protein, which contains several virus neutralization epitopes, is considered to be a target site of vaccine development. However, although protective immune responses could be induced by recombinant S1 protein, the protection rate in chickens was still low (<50%). Here, we generated fused S1 proteins with HA2 protein (rS1-HA2) or transmembrane domain and cytoplasmic tail (rS1-H3(TM)) from hemagglutinin of H3N2 influenza virus. After immunization, animals vaccinated with fusion proteins rS1-HA2 and rS1-H3(TM) demonstrated stronger robust humoral and cellular immune responses than that of rS1 and inactivated M41 vaccine. The protection rates of groups immunized with rS1-HA2 (87%) were significantly higher than the groups inoculated with rS1 (47%) and inactivated M41 vaccine (53%). And chickens injected with rS1-H3(TM) had similar level of protection (73%) comparing to chickens vaccinated with rS1 (47%) (P = 0.07). Our data suggest that S1 protein fused to the HA2 or TM proteins from hemagglutinin of H3N2 influenza virus may provide a new strategy for high efficacy recombinant vaccine development against IBV.
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Affiliation(s)
- Lijuan Yin
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Yuyao Zeng
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Wei Wang
- Linyi Institute for Food and Drug Control, Linyi, Shandong Province, PR China
| | - Ying Wei
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Chunyi Xue
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Yongchang Cao
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, PR China.
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16
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Li H, Wang Y, Han Z, Wang Y, Liang S, Jiang L, Hu Y, Kong X, Liu S. Recombinant duck enteritis viruses expressing major structural proteins of the infectious bronchitis virus provide protection against infectious bronchitis in chickens. Antiviral Res 2016; 130:19-26. [PMID: 26946113 PMCID: PMC7172294 DOI: 10.1016/j.antiviral.2016.03.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Revised: 12/20/2015] [Accepted: 03/01/2016] [Indexed: 01/04/2023]
Abstract
To design an alternative vaccine for control of infectious bronchitis in chickens, three recombinant duck enteritis viruses (rDEVs) expressing the N, S, or S1 protein of infectious bronchitis virus (IBV) were constructed using conventional homologous recombination methods, and were designated as rDEV-N, rDEV-S, and rDEV-S1, respectively. Chickens were divided into five vaccinated groups, which were each immunized with one of the rDEVs, covalent vaccination with rDEV-N & rDEV-S, or covalent vaccination with rDEV-N & rDEV-S1, and a control group. An antibody response against IBV was detectable and the ratio of CD4+/CD8+ T-lymphocytes decreased at 7 days post-vaccination in each vaccinated group, suggesting that humoral and cellular responses were elicited in each group as early as 7 days post-immunization. After challenge with a homologous virulent IBV strain at 21 days post-immunization, vaccinated groups showed significant differences in the percentage of birds with clinical signs, as compared to the control group (p < 0.01), as the two covalent-vaccination groups and the rDEV-S group provided better protection than the rDEV-N- or rDEV-S1-vaccinated group. There was less viral shedding in the rDEV-N & rDEV-S- (2/10) and rDEV-N & rDEV-S1- (2/10) vaccinated groups than the other three vaccinated groups. Based on the clinical signs, viral shedding, and mortality rates, rDEV-N & rDEV-S1 covalent vaccination conferred better protection than use of any of the single rDEVs. Infectious bronchitis virus (IBV) causes a respiratory disease in domestic chickens worldwide. Duck enteritis virus (DEV) was used as viral vaccine vector in chickens. Recombinant DEV (rDEV) expressing IBV N, S, or S1 conferred protection against IBV. Covalent vaccination with rDEV-N & rDEV-S1 conferred higher level of protection against IBV.
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Affiliation(s)
- Huixin Li
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, PR China
| | - Yulong Wang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, PR China; College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, PR China
| | - Zongxi Han
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, PR China
| | - Yu Wang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, PR China
| | - Shulin Liang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, PR China
| | - Lu Jiang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, PR China
| | - Yonghao Hu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, PR China
| | - Xiangang Kong
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, PR China
| | - Shengwang Liu
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, PR China.
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17
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Keil GM, Pollin R, Müller C, Giesow K, Schirrmeier H. BacMam Platform for Vaccine Antigen Delivery. Methods Mol Biol 2016; 1349:105-119. [PMID: 26458832 DOI: 10.1007/978-1-4939-3008-1_7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Recombinant baculo viruses based on Autographa californica multiple nuclear polyhedrosis virus carrying vertebrate cell active expression cassettes, so-called BacMam viruses, are increasingly used as gene delivery vectors for vaccination of animals against pathogens. Different approaches for generation of BacMams exist and a variety of transfer vectors to improve target protein expression in vivo have been constructed. Here we describe a use of transfer vector which contains an insect cell-restricted expression cassette for the green fluorescent protein and thus enables easy monitoring of BacMam virus rescue, fast plaque purification of recombinants and their convenient titer determination and which has been proven to be efficacious for gene delivery in vaccination/challenge experiments.
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Affiliation(s)
- Günther M Keil
- Institut für molekulare Virologie und Zellbiologie, Friedrich-Loeffler-Instiut, Südufer 10, Greifswald, 17493, Insel Riems, Germany.
- Institut für Virusdiagnostik, Friedrich-Loeffler-Instiut, Südufer 10, Greifswald, 17493, Insel Riems, Germany.
| | - Reiko Pollin
- Institut für molekulare Virologie und Zellbiologie, Friedrich-Loeffler-Instiut, Südufer 10, Greifswald, 17493, Insel Riems, Germany
- Institut für Virusdiagnostik, Friedrich-Loeffler-Instiut, Südufer 10, Greifswald, 17493, Insel Riems, Germany
| | - Claudia Müller
- Institut für molekulare Virologie und Zellbiologie, Friedrich-Loeffler-Instiut, Südufer 10, Greifswald, 17493, Insel Riems, Germany
- Institut für Virusdiagnostik, Friedrich-Loeffler-Instiut, Südufer 10, Greifswald, 17493, Insel Riems, Germany
| | - Katrin Giesow
- Institut für molekulare Virologie und Zellbiologie, Friedrich-Loeffler-Instiut, Südufer 10, Greifswald, 17493, Insel Riems, Germany
- Institut für Virusdiagnostik, Friedrich-Loeffler-Instiut, Südufer 10, Greifswald, 17493, Insel Riems, Germany
| | - Horst Schirrmeier
- Institut für molekulare Virologie und Zellbiologie, Friedrich-Loeffler-Instiut, Südufer 10, Greifswald, 17493, Insel Riems, Germany
- Institut für Virusdiagnostik, Friedrich-Loeffler-Instiut, Südufer 10, Greifswald, 17493, Insel Riems, Germany
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18
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Zhang J, Fan HY, Zhang Z, Zhang J, Zhang J, Huang JN, Ye Y, Liao M. Recombinant baculovirus vaccine containing multiple M2e and adjuvant LTB induces T cell dependent, cross-clade protection against H5N1 influenza virus in mice. Vaccine 2016; 34:622-629. [DOI: 10.1016/j.vaccine.2015.12.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 10/19/2015] [Accepted: 12/15/2015] [Indexed: 12/01/2022]
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19
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Tan L, Liao Y, Fan J, Zhang Y, Mao X, Sun Y, Song C, Qiu X, Meng C, Ding C. Prediction and identification of novel IBV S1 protein derived CTL epitopes in chicken. Vaccine 2015; 34:380-6. [PMID: 26620841 DOI: 10.1016/j.vaccine.2015.11.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 10/30/2015] [Accepted: 11/12/2015] [Indexed: 01/22/2023]
Abstract
Infectious bronchitis virus (IBV) is a major pathogen common in the poultry industry. Broad cytotoxic T lymphocyte (CTL) response against IBV is one of the crucial factors that help to control viral replication. Spike glycoproteins on the surface of the IBV virion harbor major T cell epitopes. In this study, based on the peptide-binding motifs of chicken MHC I molecules for the BF2*4, BF2*12, BF2*15, and BF2*19 haplotypes, potential CTL epitopes were predicted using S1 proteins from different IBV strains. Twenty-one peptides were predicted to be potential CTL epitopes; they were manually synthesized and the CTL responses to them tested in vitro. Spleen lymphocytes were collected from specific-pathogen free (SPF) chicken that had been immunized with the S1 protein expression plasmid, pV-S1, and were stimulated by the synthesized peptides. IFN-γ secretion and CD8(+) T cell proliferation in chickens were tested by ELISpot array and flow cytometry, respectively. Four epitopes (P8SRIQTATDP, P9SRNATGSQP, P18GAYAVVNV, and P19SRIQTATQP) were identified to stimulate CD8(+) T cell proliferation and IFN-γ secretion, indicating their efficacy as CTL epitopes in chicken. Poly-CTL-epitope DNA vaccine (pV-S1T) was constructed by inserting nucleotide sequences encoding the P8, P9, P18, and P19 CTL epitopes into the pVAX1 vector. Chickens were vaccinated with either pV-S1, pV-S1T, or pVAX1 and the protection efficacy was analyzed, revealing that ninety percent of chickens immunized with pV-S1T were protected after challenge with 10(6) ELD50 of IBV, demonstrating that these novel CTL epitopes were effective against IBV challenge. This study provides a new method to screen virus CTL epitopes in chicken and to develop poly-CTL-epitope DNA vaccines.
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Affiliation(s)
- Lei Tan
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Ying Liao
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Jin Fan
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Yuqiang Zhang
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Xiang Mao
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Yingjie Sun
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Cuiping Song
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Xusheng Qiu
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Chunchun Meng
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China
| | - Chan Ding
- Department of Avian Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China.
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20
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Zou N, Wang F, Duan Z, Xia J, Wen X, Yan Q, Liu P, Cao S, Huang Y. Development and characterization of neutralizing monoclonal antibodies against the S1 subunit protein of QX-like avian infectious bronchitis virus strain Sczy3. Monoclon Antib Immunodiagn Immunother 2015; 34:17-24. [PMID: 25723279 DOI: 10.1089/mab.2014.0081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Infectious bronchitis (IB) is a highly contagious disease in chickens caused by infectious bronchitis virus (IBV). The present study was carried out with the aim to develop anti-spike 1 (S1) subunit monoclonal antibodies (MAbs) that could react with IBV strains of different genotypes. The high antigenicity region of S1 gene of an QX-like IBV strain Sczy3 was amplified and ligated into the prokaryotic expression vector pET-32a(+), and the recombinant His-S1 fusion proteins were expressed and purified. The purified whole viral antigen of Sczy3 strain was used to immunize BALB/c mice to produce hybridoma-secreting anti-IBV MAbs. Eleven anti-IBV MAbs were generated, and two MAbs 1C8 and 2C10 were positive in indirect ELISA against both His-S1 protein and the purified whole viral antigen. These two MAbs showed positive reaction with IBV in Western blot, and the isotype were both IgM. These two MAbs react specifically with IBV but not with Newcastle disease virus (NDV) or avian influenza virus (AIV) subtype H9 or H5, and could cross-react with other 10 IBV strains in five different genotypes. End-point neutralizing assay performed in chicken embro kidney (CEK) cells revealed that the neutralization titer of 1C8 and 2C10 against Sczy3 reached 1:2.82 and 1:4.70, respectively. The anti-S1 MAbs produced in the present work may be valuable in developing an antigen-capture ELISA test for antigen detection or a competitive ELISA test for antibody detection or therapeutic medicine for IB in poultry.
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Affiliation(s)
- Nianli Zou
- 1 College of Veterinary Medicine, Sichuan Agricultural University , Ya'an, Sichuan, People's Republic of China
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21
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Zou N, Xia J, Wang F, Duan Z, Miao D, Yan Q, Cao S, Wen X, Liu P, Huang Y. Two novel neutralizing antigenic epitopes of the s1 subunit protein of a QX-like avian infectious bronchitis virus strain Sczy3 as revealed using a phage display peptide library. Vet Immunol Immunopathol 2015; 168:49-55. [PMID: 26315775 PMCID: PMC7127571 DOI: 10.1016/j.vetimm.2015.08.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 08/02/2015] [Accepted: 08/13/2015] [Indexed: 12/26/2022]
Abstract
The spike (S) protein of the infectious bronchitis virus (IBV) plays a central role in the pathogenicity, the immune antibody production, serotype and the tissue tropism. In this study, we generate 11 monoclonal antibodies (mAbs) against S1 subunit of IBV Sczy3 strain, and two mAbs 1D5 and 6A12 were positive in indirect ELISA against both His-S1 protein and the purified whole viral antigen. MAb 6A12 and 1D5 could recognized by other 10 IBV strains (IBVs) from five different genotypes, except that 1D5 had a relatively low reaction with two of the 10 tested IBVs. End-point neutralizing assay performed in chicken embro kidney (CEK) cells revealed that the neutralization titer of 6A12 and 1D5 against Sczy3 reached 1:44.7 and 1:40.6, respectively. After screening a phage display peptide library and peptide scanning, we identified two linear B-cell epitopes that were recognized by the mAbs 1D5 and 6A12, which corresponded to the amino acid sequences (87)PPQGMAW(93) and (412)IQTRTEP(418), respectively, in the IBV S1 subunit. Sequences comparison revealed that epitope (412)IQTRTEP(418) was conserved among IBVs, while the epitope (87)PPQGMAW(93) was relatively variable among IBVs. The novel mAbs and the epitopes identified will be useful for developing diagnostic assays for IBV infections.
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Affiliation(s)
- Nianli Zou
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, 625014, P. R. China; Zigong Center For Disease Control and Prevention, Zi'gong, Sichuan, 643000, P. R. China
| | - Jing Xia
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, 625014, P. R. China
| | - Fuyan Wang
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, 625014, P. R. China
| | - Zhenzhen Duan
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, 625014, P. R. China
| | - Dan Miao
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, 625014, P. R. China
| | - Qigui Yan
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, 625014, P. R. China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Ya'an, Sichuan, 625014, P. R. China
| | - Sanjie Cao
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, 625014, P. R. China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Ya'an, Sichuan, 625014, P. R. China
| | - Xintian Wen
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, 625014, P. R. China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Ya'an, Sichuan, 625014, P. R. China
| | - Ping Liu
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, 625014, P. R. China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Ya'an, Sichuan, 625014, P. R. China
| | - Yong Huang
- College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, 625014, P. R. China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Ya'an, Sichuan, 625014, P. R. China.
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Bande F, Arshad SS, Hair Bejo M, Moeini H, Omar AR. Progress and challenges toward the development of vaccines against avian infectious bronchitis. J Immunol Res 2015; 2015:424860. [PMID: 25954763 PMCID: PMC4411447 DOI: 10.1155/2015/424860] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Revised: 03/20/2015] [Accepted: 03/23/2015] [Indexed: 12/03/2022] Open
Abstract
Avian infectious bronchitis (IB) is a widely distributed poultry disease that has huge economic impact on poultry industry. The continuous emergence of new IBV genotypes and lack of cross protection among different IBV genotypes have been an important challenge. Although live attenuated IB vaccines remarkably induce potent immune response, the potential risk of reversion to virulence, neutralization by the maternal antibodies, and recombination and mutation events are important concern on their usage. On the other hand, inactivated vaccines induce a weaker immune response and may require multiple dosing and/or the use of adjuvants that probably have potential safety risks and increased economic burdens. Consequently, alternative IB vaccines are widely sought. Recent advances in recombinant DNA technology have resulted in experimental IB vaccines that show promise in antibody and T-cells responses, comparable to live attenuated vaccines. Recombinant DNA vaccines have also been enhanced to target multiple serotypes and their efficacy has been improved using delivery vectors, nanoadjuvants, and in ovo vaccination approaches. Although most recombinant IB DNA vaccines are yet to be licensed, it is expected that these types of vaccines may hold sway as future vaccines for inducing a cross protection against multiple IBV serotypes.
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Affiliation(s)
- Faruku Bande
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
- Department of Veterinary Services, Ministry of Animal Health and Fisheries Development, PMB 2109, Usman Faruk Secretariat, Sokoto 840221, Sokoto State, Nigeria
| | - Siti Suri Arshad
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
| | - Mohd Hair Bejo
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
- Laboratory of Vaccine and Immunotherapeutics, Institute of Bioscience, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
| | - Hassan Moeini
- Department of Virus-Associated Tumours (F100), German Cancer Research Centre, Im Neuenheimer Feld 242, 69120 Heidelberg, Germany
| | - Abdul Rahman Omar
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
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Wickramasinghe INA, van Beurden SJ, Weerts EAWS, Verheije MH. The avian coronavirus spike protein. Virus Res 2014; 194:37-48. [PMID: 25451062 PMCID: PMC7114429 DOI: 10.1016/j.virusres.2014.10.009] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 10/06/2014] [Accepted: 10/07/2014] [Indexed: 02/07/2023]
Abstract
Avian coronaviruses of the genus Gammacoronavirus are represented by infectious bronchitis virus (IBV), the coronavirus of chicken. IBV causes a highly contagious disease affecting the respiratory tract and, depending on the strain, other tissues including the reproductive and urogenital tract. The control of IBV in the field is hampered by the many different strains circulating worldwide and the limited protection across strains due to serotype diversity. This diversity is believed to be due to the amino acid variation in the S1 domain of the major viral attachment protein spike. In the last years, much effort has been undertaken to address the role of the avian coronavirus spike protein in the various steps of the virus' live cycle. Various models have successfully been developed to elucidate the contribution of the spike in binding of the virus to cells, entry of cell culture cells and organ explants, and the in vivo tropism and pathogenesis. This review will give an overview of the literature on avian coronavirus spike proteins with particular focus on our recent studies on binding of recombinant soluble spike protein to chicken tissues. With this, we aim to summarize the current understanding on the avian coronavirus spike's contribution to host and tissue predilections, pathogenesis, as well as its role in therapeutic and protective interventions.
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Affiliation(s)
- I N Ambepitiya Wickramasinghe
- Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584CL Utrecht, The Netherlands
| | - S J van Beurden
- Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584CL Utrecht, The Netherlands
| | - E A W S Weerts
- Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584CL Utrecht, The Netherlands
| | - M H Verheije
- Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584CL Utrecht, The Netherlands.
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Lin SY, Chung YC, Hu YC. Update on baculovirus as an expression and/or delivery vehicle for vaccine antigens. Expert Rev Vaccines 2014; 13:1501-21. [DOI: 10.1586/14760584.2014.951637] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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