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Latifi T, Jalilvand S, Golsaz-Shirazi F, Arashkia A, Kachooei A, Afchangi A, Zafarian S, Roohvand F, Shoja Z. Characterization and immunogenicity of a novel chimeric hepatitis B core-virus like particles (cVLPs) carrying rotavirus VP8*protein in mice model. Virology 2023; 588:109903. [PMID: 37832344 DOI: 10.1016/j.virol.2023.109903] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/23/2023] [Accepted: 10/02/2023] [Indexed: 10/15/2023]
Abstract
Given the efficacy and safety issues of the WHO for approved/prequalified live attenuated rotavirus (RV) vaccines, studies on alternative non-replicating modals and proper RV antigens are actively undertaken. Herein, we report the novel chimeric hepatitis B core-virus like particles (VLPs) carrying RV VP8*26-231 protein of a P [8] strain (cVLPVP8*), as a parenteral VLP RV vaccine candidate. SDS-PAGE and Western blotting analyses indicated the expected size of the E. coli-derived HBc-VP8* protein that self-assembled to cVLPVP8* particles. Immunization in mice indicated development of higher levels of IgG and IgA as well as higher IgG1/IgG2a ratios by cVLPVP8* vaccination compared to the VP8* alone. Assessment of neutralizing antibodies (nAbs) indicated development of heterotypic nAbs with cross-reactivity to a heterotypic RV strain by cVLPVP8* immunization compared to VP8* alone. The observed anti-VP8* cross-reactivity might indicate the possibility of developing a Pan-genomic RVA vaccine based on the cVLPVP8* formulation that deserves further challenge studies.
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Affiliation(s)
- Tayebeh Latifi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Department of Virology, Pasteur Institute of Iran, Tehran, Iran
| | - Somayeh Jalilvand
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Forough Golsaz-Shirazi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Arash Arashkia
- Department of Virology, Pasteur Institute of Iran, Tehran, Iran; Research Center for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran
| | - Atefeh Kachooei
- Department of Virology, Pasteur Institute of Iran, Tehran, Iran; Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Atefeh Afchangi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Department of Virology, Pasteur Institute of Iran, Tehran, Iran
| | - Saman Zafarian
- Department of Virology, Pasteur Institute of Iran, Tehran, Iran; Department of Microbial Biotechnology, College of Science, University of Tehran, Tehran, Iran
| | - Farzin Roohvand
- Department of Virology, Pasteur Institute of Iran, Tehran, Iran
| | - Zabihollah Shoja
- Department of Virology, Pasteur Institute of Iran, Tehran, Iran; Research Center for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran.
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Abstract
Since the widespread introduction of oral and live attenuated rotavirus vaccines around the world in 2009, the impacts of disease burden and the effects of disease reduction in developing countries have been proven. However, in low and middle-income countries, the vaccine efficacy is somewhat lower than in developed countries due to differences in nutritional conditions, microbial environments of individuals, and other factors. In addition, as oral, live vaccines have been found to be associated with rare but serious side effects, the development of a next-generation vaccine with safety, improved effectiveness, and ease of storage is currently underway. New vaccine strain developed by the Centers for Disease Control and Prevention in the United States are undergoing preclinical testing of efficacy, antigen dose, and administration route in the form of a heat-treated inactive vaccine, and a recombinant protein-based trivalent subunit vaccine developed by the Program for Appropriate Technology in Health is undergoing clinical trial in phase III. Several research groups are also developing non-replicating protein-based rotavirus vaccines using virus-like particles and nanoparticles. This review provides a brief overview of the development status and technology of parenteral, non-live rotavirus vaccines worldwide.
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Affiliation(s)
- Jae Min Song
- School of Biopharmaceutical and Medical Sciences, Sungshin Women's University, Seoul, Korea
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Li Y, Guan L, Liu X, Liu W, Yang J, Zhang X, Wang F, Guo Y, Li H, Li X. Oral immunization with rotavirus VP7-CTB fusion expressed in transgenic Arabidopsis thaliana induces antigen-specific IgA and IgG and passive protection in mice. Exp Ther Med 2018; 15:4866-4874. [PMID: 29805507 PMCID: PMC5952079 DOI: 10.3892/etm.2018.6003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 01/22/2018] [Indexed: 02/07/2023] Open
Abstract
Human rotavirus (HRV) is the primary cause of severe gastroenteritis in children. However, there is currently no protective virus for rotavirus available. In the present study, an HRVVP7-cholera toxin B subunit (CTB) fusion protein was expressed in Arabidopsis thaliana. To determine the adjuvant effect of HRVVP7-CTB, HRVVP7 without CTB was expressed in the same manner. HRVVP7-CTB accounted for 0.39% of the total soluble protein (TSP) in the transgenic seeds and 52.65 µg/g of HRVVP7 protein was expressed in these seeds. Mice were immunized with TSP from the transformed seeds and produced serum immunoglobulin G (IgG) and mucosal IgA specifically directed against HRVVP7. Antibody titers were highest in mice orally immunized with the plant-expressed HRVVP7-CTB protein, whereas HRVVP7-CTB-specific IgG neutralized the rotavirus. Suckling pups born from dams immunized with the HRVVP7-CTB fusion protein were protected against challenge with virulent rotavirus. The results of the present study suggest that the HRVVP7-CTB fusion protein produced in A. thaliana may be a rotaviral-specific candidate subunit vaccine.
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Affiliation(s)
- Yuxian Li
- Ministry of Education Engineering Research Center of Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, Jilin 130118, P.R. China.,College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun, Jilin 130118, P.R. China.,Traditional Chinese Medicine Department, Jilin Agricultural Science and Technology College, Jilin 132101, P.R. China
| | - Lili Guan
- Ministry of Education Engineering Research Center of Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, Jilin 130118, P.R. China
| | - Xiuming Liu
- Ministry of Education Engineering Research Center of Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, Jilin 130118, P.R. China
| | - Weican Liu
- Ministry of Education Engineering Research Center of Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, Jilin 130118, P.R. China
| | - Jing Yang
- Ministry of Education Engineering Research Center of Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, Jilin 130118, P.R. China
| | - Xiaomei Zhang
- Ministry of Education Engineering Research Center of Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, Jilin 130118, P.R. China
| | - Fawei Wang
- Ministry of Education Engineering Research Center of Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, Jilin 130118, P.R. China
| | - Yongxin Guo
- Ministry of Education Engineering Research Center of Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, Jilin 130118, P.R. China
| | - Haiyan Li
- Ministry of Education Engineering Research Center of Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, Jilin 130118, P.R. China
| | - Xiaokun Li
- Ministry of Education Engineering Research Center of Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun, Jilin 130118, P.R. China.,College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang 325035, P.R. China
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Nasiri K, Nassiri M, Tahmoorespur M, Haghparast A, Zibaee S. Design and Construction of Chimeric VP8-S2 Antigen for Bovine Rotavirus and Bovine Coronavirus. Adv Pharm Bull 2016; 6:91-8. [PMID: 27123423 PMCID: PMC4845540 DOI: 10.15171/apb.2016.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 02/14/2016] [Accepted: 02/16/2016] [Indexed: 11/09/2022] Open
Abstract
PURPOSE Bovine Rotavirus and Bovine Coronavirus are the most important causes of diarrhea in newborn calves and in some other species such as pigs and sheep. Rotavirus VP8 subunit is the major determinant of the viral infectivity and neutralization. Spike glycoprotein of coronavirus is responsible for induction of neutralizing antibody response. METHODS In the present study, several prediction programs were used to predict B and T-cells epitopes, secondary and tertiary structures, antigenicity ability and enzymatic degradation sites. Finally, a chimeric antigen was designed using computational techniques. The chimeric VP8-S2 antigen was constructed. It was cloned and sub-cloned into pGH and pET32a(+) expression vector. The recombinant pET32a(+)-VP8-S2 vector was transferred into E.oli BL21CodonPlus (DE3) as expression host. The recombinant VP8-S2 protein was purified by Ni-NTA chromatography column. RESULTS The results of colony PCR, enzyme digestion and sequencing showed that the VP8-S2 chimeric antigen has been successfully cloned and sub-cloned into pGH and pET32a(+).The results showed that E.coli was able to express VP8-S2 protein appropriately. This protein was expressed by induction of IPTG at concentration of 1mM and it was confirmed by Ni-NTA column, dot-blotting analysis and SDS-PAGE electrophoresis. CONCLUSION The results of this study showed that E.coli can be used as an appropriate host to produce the recombinant VP8-S2 protein. This recombinant protein may be suitable to investigate to produce immunoglobulin, recombinant vaccine and diagnostic kit in future studies after it passes biological activity tests in vivo in animal model and or other suitable procedure.
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Affiliation(s)
- Khadijeh Nasiri
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran
| | - Mohammadreza Nassiri
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran. ; Institute of Biotechnology, Ferdowsi University of Mashhad, Iran
| | - Mojtaba Tahmoorespur
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran
| | - Alireza Haghparast
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Iran
| | - Saeed Zibaee
- Razi Vaccine and Serum Research Institute, Mashhad, Iran
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Peréz Aguirreburualde MS, Gómez MC, Ostachuk A, Wolman F, Albanesi G, Pecora A, Odeon A, Ardila F, Escribano JM, Dus Santos MJ, Wigdorovitz A. Efficacy of a BVDV subunit vaccine produced in alfalfa transgenic plants. Vet Immunol Immunopathol 2012; 151:315-24. [PMID: 23291101 DOI: 10.1016/j.vetimm.2012.12.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 11/08/2012] [Accepted: 12/07/2012] [Indexed: 01/16/2023]
Abstract
Bovine viral diarrhea virus (BVDV) is considered an important cause of economic loss within bovine herds worldwide. In Argentina, only the use of inactivated vaccines is allowed, however, the efficacy of inactivated BVDV vaccines is variable due to its low immunogenicity. The use of recombinant subunit vaccines has been proposed as an alternative to overcome this difficulty. Different studies on protection against BVDV infection have focused the E2 protein, supporting its putative use in subunit vaccines. Utilization of transgenic plants expressing recombinant antigens for the formulation of experimental vaccines represents an innovative and cost effective alternative to the classical fermentation systems. The aim of this work was to develop transgenic alfalfa plants (Medicago sativa, L.) expressing a truncated version of the structural protein E2 from BVDV fused to a molecule named APCH, that target to antigen presenting cells (APCH-tE2). The concentration of recombinant APCH-tE2 in alfalfa leaves was 1 μg/g at fresh weight and its expression remained stable after vegetative propagation. A methodology based an aqueous two phases system was standardized for concentration and partial purification of APCH-tE2 from alfalfa. Guinea pigs parentally immunized with leaf extracts developed high titers of neutralizing antibodies. In bovine, the APCH-tE2 subunit vaccine was able to induce BVDV-specific neutralizing antibodies. After challenge, bovines inoculated with 3 μg of APCH-tE2 produced in alfalfa transgenic plants showed complete virological protection.
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Miller T, Fanton M, Nickelson S, Mason H, Webb S. Safety and immunogenicity of bacterial and tobacco plant cell line derived recombinant native and mutant Escherichia coli heat-labile toxin in chickens. Avian Pathol 2012; 41:441-9. [PMID: 22928883 DOI: 10.1080/03079457.2012.709606] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The safety and immunogenicity of the mammalian mucosal adjuvants, Escherichia coli wild-type heat-labile holotoxin (LT) and E. coli mutant LT (LTA-K63/LTB), were examined in 1-day-old chicks and 10-day-old to 21-day-old broilers. Biologically active, E. coli recombinant wild-type LT and recombinant LTA-K63/LTB produced in a transgenic Nicotiana tabacum (NT-1) tobacco cell line (SLT102) were tested for safety and antigenicity following various routes of administration. Safety was assessed by clinical signs, body weight gain, gross organ pathology and wet organ weight, and histopathology. Antigenicity was assessed using LT-B-specific serum IgG enzyme-linked immunosorbent assay. Parenteral administration of E. coli recombinant wild-type LT did not have any discernible effect on bird health and was well tolerated at levels up to 400 µg per dose. Recombinant, SLT102-derived mutant LT derived from SLT102 cells retained in vitro ganglioside binding and was safe and antigenic following repeated mucosal administration to birds. The highest systemic LT-B-specific IgG titres were detected in birds that received three on-feed doses of SLT102-derived mutant LT. Among the various SLT102-derived mutant LT preparations tested, whole, wet cells or whole cell lysates were the most antigenic. These results demonstrate for the first time that E. coli-derived recombinant, wild-type LT holotoxin is well tolerated following multiple administrations to young birds at body weight doses previously reported to be enteropathogenic and toxic in mammalian species. Moreover, these data also demonstrate the feasibility of using recombinant wild-type and mutant LT produced in transgenic NT-1 tobacco cells as safe and potent vaccine adjuvants in poultry.
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Affiliation(s)
- Tim Miller
- Benchmark BioLabs, Inc., Lincoln, NE 68528-1574, USA.
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Wen X, Cao D, Jones RW, Li J, Szu S, Hoshino Y. Construction and characterization of human rotavirus recombinant VP8* subunit parenteral vaccine candidates. Vaccine 2012; 30:6121-6. [PMID: 22885016 DOI: 10.1016/j.vaccine.2012.07.078] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Revised: 05/14/2012] [Accepted: 07/30/2012] [Indexed: 11/16/2022]
Abstract
Two currently licensed live oral rotavirus vaccines (Rotarix® and RotaTeq®) are highly efficacious against severe rotavirus diarrhea. However, the efficacy of such vaccines in selected low-income African and Asian countries is much lower than that in middle or high-income countries. Additionally, these two vaccines have recently been associated with rare case of intussusception in vaccinated infants. We developed a novel recombinant subunit parenteral rotavirus vaccine which may be more effective in low-income countries and also avert the potential problem of intussusception. Truncated recombinant VP8* (ΔVP8*) protein of human rotavirus strain Wa P[8], DS-1 P[4] or 1076 P[6] expressed in Escherichia coli was highly soluble and was generated in high yield. Guinea pigs hyperimmunized intramuscularly with each of the ΔVP8* proteins (i.e., P[8], P[4] or P[6]) developed high levels of homotypic as well as variable levels of heterotypic neutralizing antibodies. Moreover, the selected ΔVP8* proteins when administered to mice at a clinically relevant dosage, route and schedule, elicited high levels of serum anti-VP8* IgG and/or neutralizing antibodies. Our data indicated that the ΔVP8* proteins may be a plausible additional candidate as new parenteral rotavirus vaccines.
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Affiliation(s)
- Xiaobo Wen
- Rotavirus Vaccine Development Section, Laboratory of Infectious Diseases, NIAID, National Institutes of Health, Bethesda, MD 20892, USA
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Lentz EM, Mozgovoj MV, Bellido D, Dus Santos MJ, Wigdorovitz A, Bravo-Almonacid FF. VP8* antigen produced in tobacco transplastomic plants confers protection against bovine rotavirus infection in a suckling mouse model. J Biotechnol 2011; 156:100-7. [PMID: 21893114 DOI: 10.1016/j.jbiotec.2011.08.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Revised: 07/26/2011] [Accepted: 08/14/2011] [Indexed: 10/17/2022]
Abstract
Group A rotavirus is a major leading cause of diarrhea in mammalian species worldwide. In Argentina, bovine rotavirus (BRV) is the main cause of neonatal diarrhea in calves. VP4, one of the outermost capsid proteins, is involved in various virus functions. Rotavirus infectivity requires proteolytic cleavage of VP4, giving an N-terminal non-glycosilated sialic acid-recognizing domain (VP8*), and a C-terminal fragment (VP5*) that remains associated with the virion. VP8* subunit is the major determinant of the viral infectivity and one of the neutralizing antigens. In this work, the C486 BRV VP8* protein was produced in tobacco chloroplasts. Transplastomic plants were obtained and characterized by Southern blot, northern blot and western blot. VP8* was highly stable in the transplastomic leaves, and formed insoluble aggregates that were partially solubilized by sonication. The recombinant protein yield was 600 μg/g of fresh tissue (FT). Both the soluble and insoluble fractions of the VP8* plant extracts were able to induce a strong immune response in female mice as measured by ELISA and virus neutralization test. Most important, suckling mice born to immunized dams were protected against oral challenge with virulent rotavirus. Results presented here contribute to demonstrate the feasibility of using antigens expressed in transplastomic plants for the development of subunit vaccines.
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Affiliation(s)
- E M Lentz
- Laboratorio de Virología y Biotecnología Vegetal, INGEBI-CONICET, Ciudad Autónoma de Buenos Aires, Argentina
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Bergeron-Sandoval LP, Girard A, Ouellet F, Archambault D, Sarhan F. Production of human rotavirus and Salmonella antigens in plants and elicitation of fljB-specific humoral responses in mice. Mol Biotechnol 2011; 47:157-68. [PMID: 20725806 DOI: 10.1007/s12033-010-9324-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A Nicotiana benthamiana transient expression system was used to express single antigen and dimeric combinations of the human rotavirus (HRV) VP7 and a truncated VP4 (VP4Δ) proteins fused with Salmonella typhimurium's flagellin fljB subunit. Immunoblot analyses using rabbit antibodies generated against these proteins demonstrated that the constructs were successfully expressed with yields ranging from 0.85 to 31.97 μg of recombinant protein per gram of fresh leaf tissue. Expressing the single and dimeric antigens has no effect on plant growth and development except for VP7 and VP4Δ::VP7, which show mild necrotic lesions. Immunization of mice with proteins from leaves transformed with constructs bearing the fljB moiety elicited an fljB-specific humoral response. The Nicotiana benthamiana transient system is efficient to express multiple combinations of pathogen proteins and demonstrates the potential of generating a Salmonella typhimurium subunit vaccine in plants.
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Zhou B, Zhang Y, Wang X, Dong J, Wang B, Han C, Yu J, Li D. Oral administration of plant-based rotavirus VP6 induces antigen-specific IgAs, IgGs and passive protection in mice. Vaccine 2010; 28:6021-7. [DOI: 10.1016/j.vaccine.2010.06.094] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2009] [Revised: 06/24/2010] [Accepted: 06/29/2010] [Indexed: 02/03/2023]
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Abstract
The concept of using plants to produce high-value pharmaceuticals such as vaccines is 20 years old this year and is only now on the brink of realisation as an established technology. The original reliance on transgenic plants has largely given way to transient expression; proofs of concept for human and animal vaccines and of efficacy for animal vaccines have been established; several plant-produced vaccines have been through Phase I clinical trials in humans and more are scheduled; regulatory requirements are more clear than ever, and more facilities exist for manufacture of clinic-grade materials. The original concept of cheap edible vaccines has given way to a realisation that formulated products are required, which may well be injectable. The technology has proven its worth as a means of cheap, easily scalable production of materials: it now needs to find its niche in competition with established technologies. The realised achievements in the field as well as promising new developments will be reviewed, such as rapid-response vaccines for emerging viruses with pandemic potential and bioterror agents.
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Affiliation(s)
- Edward P Rybicki
- Department of Molecular and Cell Biology, University of Cape Town, Rondebosch, South Africa. ed.rybicki@ uct.ac.za
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Bellido D, Craig PO, Mozgovoj MV, Gonzalez DD, Wigdorovitz A, Goldbaum FA, Dus Santos MJ. Brucella spp. lumazine synthase as a bovine rotavirus antigen delivery system. Vaccine 2009; 27:136-45. [DOI: 10.1016/j.vaccine.2008.10.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2008] [Revised: 09/30/2008] [Accepted: 10/02/2008] [Indexed: 11/29/2022]
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Joensuu JJ, Niklander-Teeri V, Brandle JE. Transgenic plants for animal health: plant-made vaccine antigens for animal infectious disease control. Phytochem Rev 2008; 7:553-577. [PMID: 32214922 PMCID: PMC7089046 DOI: 10.1007/s11101-008-9088-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2007] [Accepted: 02/05/2008] [Indexed: 05/19/2023]
Abstract
A variety of plant species have been genetically modified to accumulate vaccine antigens for human and animal health and the first vaccine candidates are approaching the market. The regulatory burden for animal vaccines is less than that for human use and this has attracted the attention of researchers and companies, and investment in plant-made vaccines for animal infectious disease control is increasing. The dosage cost of vaccines for animal infectious diseases must be kept to a minimum, especially for non-lethal diseases that diminish animal welfare and growth, so efficient and economic production, storage and delivery are critical for commercialization. It has become clear that transgenic plants are an economic and efficient alternative to fermentation for large-scale production of vaccine antigens. The oral delivery of plant-made vaccines is particularly attractive since the expensive purification step can be avoided further reducing the cost per dose. This review covers the current status of plant-produced vaccines for the prevention of disease in animals and focuses on barriers to the development of such products and methods to overcome them.
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Affiliation(s)
- J. J. Joensuu
- Department of Applied Biology, University of Helsinki, P.O. Box 27, 00014 Helsinki, Finland
- Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON Canada N5V 4T3
| | - V. Niklander-Teeri
- Department of Applied Biology, University of Helsinki, P.O. Box 27, 00014 Helsinki, Finland
| | - J. E. Brandle
- Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON Canada N5V 4T3
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Floss DM, Falkenburg D, Conrad U. Production of vaccines and therapeutic antibodies for veterinary applications in transgenic plants: an overview. Transgenic Res 2007; 16:315-32. [PMID: 17436059 PMCID: PMC7089296 DOI: 10.1007/s11248-007-9095-x] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2007] [Accepted: 03/19/2007] [Indexed: 11/29/2022]
Abstract
During the past two decades, antibodies, antibody derivatives and vaccines have been developed for therapeutic and diagnostic applications in human and veterinary medicine. Numerous species of dicot and monocot plants have been genetically modified to produce antibodies or vaccines, and a number of diverse transformation methods and strategies to enhance the accumulation of the pharmaceutical proteins are now available. Veterinary applications are the specific focus of this article, in particular for pathogenic viruses, bacteria and eukaryotic parasites. We focus on the advantages and remaining challenges of plant-based therapeutic proteins for veterinary applications with emphasis on expression platforms, technologies and economic considerations.
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Affiliation(s)
- Doreen Manuela Floss
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstrasse 3, Gatersleben, 06466 Germany
| | | | - Udo Conrad
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstrasse 3, Gatersleben, 06466 Germany
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Li Q, Jiang L, Li M, Li P, Zhang Q, Song R, Xu Z. Morphology and stability changes of recombinant TMV particles caused by a cysteine residue in the foreign peptide fused to the coat protein. J Virol Methods 2007; 140:212-7. [PMID: 17140672 DOI: 10.1016/j.jviromet.2006.10.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2006] [Revised: 10/15/2006] [Accepted: 10/25/2006] [Indexed: 11/26/2022]
Abstract
In the studies of expressing various foreign peptides using a TMV-based vector, a portion of morphologically altered progeny viral particles from some recombinant TMV constructs were detected by transmission electron microscopy in the first systematically infected upper leaves, but not in the fully expanded inoculated leaves, from infected tobacco plants. Furthermore, in vitro stability of such recombinant TMV constructs were lower than those of the wild type and other recombinant TMV constructs able to form regular rod-shape virions, hence causing the lower yields of recombinant viral particles purified from the infected tobacco plants. Our studies revealed that the presence of a cysteine residue in the foreign peptides, regardless of its position and the peptide sequence, was directly related to changes in the morphology and stability of these TMV recombinants.
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Affiliation(s)
- Qiaoli Li
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, 99 Shangda Road, Shanghai 200444, P.R. China
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McCormick AA, Corbo TA, Wykoff-Clary S, Nguyen LV, Smith ML, Palmer KE, Pogue GP. TMV-peptide fusion vaccines induce cell-mediated immune responses and tumor protection in two murine models. Vaccine 2006; 24:6414-23. [PMID: 16860441 DOI: 10.1016/j.vaccine.2006.06.003] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2006] [Revised: 06/01/2006] [Accepted: 06/07/2006] [Indexed: 11/23/2022]
Abstract
Fusion of peptides to viral carriers has proven an effective method for improving cellular immunity. In this study we explore the ability of a plant virus, Tobacco mosaic virus (TMV), to stimulate cellular immunity by interacting directly with immune cells. Fluorescently labeled TMV was incubated in vitro with murine spleen or lymph node cells, and near quantitative labeling of lymphocytes was achieved after 2 h, which persisted for up to 48 h. Direct TMV uptake and upregulation of the CD86 activation marker was measured in nearly all dendritic cells (DCs) by flow cytometry. To demonstrate that TMV can also provide functional antigen delivery and immune stimulation in vivo, two well-characterized T-cell epitopes that provide protection against tumor challenge in mice were fused to TMV coat protein by genetic manipulation, or by chemical conjugation. Vaccination of C57BL/6 mice elicited measurable cellular responses by interferon gamma (IFN gamma) ELISpot and resulted in significantly improved protection from tumor challenge in both the EG.7-Ova and B16 melanoma models. From these results we conclude that TMV was an effective antigen carrier for inducing cellular immune responses to less than 1 microg of peptide.
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Affiliation(s)
- Alison A McCormick
- Large Scale Biology Corporation, Vaccine Development, Vacaville, CA 95688, USA.
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Favacho ARM, Kurtenbach E, Sardi SI, Gouvea VS. Cloning, expression, and purification of recombinant bovine rotavirus hemagglutinin, VP8*, in Escherichia coli. Protein Expr Purif 2006; 46:196-203. [PMID: 16275130 DOI: 10.1016/j.pep.2005.09.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2005] [Revised: 09/14/2005] [Accepted: 09/17/2005] [Indexed: 11/26/2022]
Abstract
Rotavirus VP8* subunit is the minor trypsin cleavage product of the spike protein VP4, which is the major determinant of the viral infectivity and neutralization. To study the structure-function relationship of this fragment and to obtain type-specific reagents, substantial amounts of this protein are needed. Thus, full-length VP8* cDNA, including the entire trypsin cleavage-encoding region in gene 4, was synthesized and amplified by RT-PCR from total RNA purified from bovine rotavirus strain C486 propagated in MA104 cell culture. The extended VP8* cDNA (VP8ext) was cloned into the pGEM-T Easy plasmid and subcloned into the Escherichia coli expression plasmid pET28a(+). The correspondent 30 kDa protein was overexpressed in E. coli BL21(DE3)pLysS cells under the control of the T7 promoter. The identity and the antigenicity of VP8ext were confirmed on Western blots using anti-His and anti-rotavirus antibodies. Immobilized Ni-ion affinity chromatography was used to purify the expressed protein resulting in a yield of 4 mg of VP8ext per liter of induced E. coli culture. Our results indicate that VP8ext maintained its native antigenicity and specificity, providing a good source of antigen for the production of P type-specific immune reagents. Detailed structural analysis of pure recombinant VP8 subunit should allow a better understanding of its role in cell attachment and rotavirus tropism. Application of similar procedure to distinct rotavirus P serotypes should provide valuable P serotype-specific immune reagents for rotavirus diagnostics and epidemiologic surveys.
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Affiliation(s)
- Alexsandra R M Favacho
- Departamento de Virologia, Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-590, Brazil
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Abstract
Plants viruses are versatile vectors that allow the rapid and convenient production of recombinant proteins in plants. Compared with production systems based on transgenic plants, viral vectors are easier to manipulate and recombinant proteins can be produced more quickly and in greater yields. Over the last few years, there has been much interest in the development of plant viruses as vectors for the production of vaccines, either as whole polypeptides or epitopes displayed on the surface of chimeric viral particles. Several viruses have been extensively developed for vaccine production, including tobacco mosaic virus, potato virus X and cowpea mosaic virus. Vaccine candidates have been produced against a range of human and animal diseases, and in many cases have shown immunogenic activity and protection in the face of disease challenge. In this review, we discuss the advantages of plant virus vectors, the development of different viruses as vector systems, and the immunological experiments that have demonstrated the principle of plant virus-derived vaccines.
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Affiliation(s)
- Vidadi Yusibov
- Fraunhofer USA Center for Molecular Biotechnology, Newark, Delaware 19711, USA.
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Andrés I, Rodríguez-Díaz J, Buesa J, Zueco J. Yeast expression of the VP8* fragment of the rotavirus spike protein and its use as immunogen in mice. Biotechnol Bioeng 2005; 93:89-98. [PMID: 16193515 DOI: 10.1002/bit.20696] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The VP8* fragment from the rotavirus spike protein was expressed as a fusion protein with two different cell wall proteins of Saccharomyces cerevisiae, Icwp (Ssr1p) and Pir4, to achieve cell wall targeting or secretion to the growth medium of the fusion proteins. Two different host strains were used for the expression of the fusion proteins, a standard S. cerevisiae strain and a mnn9 glycosylation deficient strain, the later to reduce hyper-glycosylation. The Icwp-VP8* fusion could only be detected in the growth medium, indicating that the presence of the VP8* moiety interferes with the anchorage of Icwp to the cell wall. In the case of the Pir4-VP8* fusion proteins, we achieved cell wall targeting or secretion depending on how the gene fusion had been performed. In all cases, the fusion proteins expressed in the mnn9 strain showed a reduced level of glycosylation. Mice were inoculated intraperitoneally either with Pir4-VP8* or Icwp-VP8* fusion proteins purified from the growth medium of mnn9 strains expressing them or with whole cells of an mnn9 strain expressing a Pir4-VP8 fusion protein on its cell walls. Hundred percent of mice inoculated with the Pir4-VP8* fusion protein and 25% of those inoculated with the Icwp-VP8* fusion protein showed high titers of anti-VP8* antibodies. No specific immune response was detected in those mice inoculated with whole cells. Finally, susceptibility to rotavirus infection of the offspring of immunized dams was determined and protection was found in a percentage of approximately 60% with respect to the control group.
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Affiliation(s)
- Isabel Andrés
- Unidad de Microbiología, Facultad de Farmacia, Univ de Valencia, Avda, Vicente Andrés Estelles s/n. 46100-Burjassot, Spain
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