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Soleimani A, Alizadeh H. Unlocking the potential of Extensin Signal peptide and Elastin-like polypeptide tag fused to Shigella dysenteriae's IpaDSTxB to improve protein expression and purification in Nicotiana tabacum and Medicagosativa. Protein Expr Purif 2024; 222:106521. [PMID: 38852714 DOI: 10.1016/j.pep.2024.106521] [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: 04/29/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 06/11/2024]
Abstract
Plants are often seen as a potent tool in the recombinant protein production industry. However, unlike bacterial expression, it is not a popular method due to the low yield and difficulty of protein extraction and purification. Therefore, developing a new high efficient and easy to purify platform is crucial. One of the best approaches to make extraction easier is to utilize the Extensin Signal peptide (EXT) to translocate the recombinant protein to the outside of the cell, along with incorporating an Elastin-like polypeptide tag (ELP) to enhance purification and accumulation rates. In this research, we transiently expressed Shigella dysenteriae's IpaDSTxB fused to both NtEXT and ELP in both Nicotiana tabacum and Medicago sativa. Our results demonstrated that N. tabacum, with an average yield of 6.39 ng/μg TSP, outperforms M. sativa, which had an average yield of 3.58 ng/μg TSP. On the other hand, analyzing NtEXT signal peptide indicated that merging EXT to the constructs facilitates translocation of IpaDSTxB to the apoplast by 78.4% and 65.9% in N. tabacum and M. sativa, respectively. Conversely, the mean level for constructs without EXT was below 25% for both plants. Furthermore, investigation into the orientation of ELP showed that merging it to the C-terminal of IpaDSTxB leads to a higher accumulation rate in both N. tabacum and M. sativa by 1.39 and 1.28 times, respectively. It also facilitates purification rate by over 70% in comparison to 20% of the 6His tag. The results show a highly efficient and easy to purify platform for the expression of heterologous proteins in plant.
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Affiliation(s)
- AmirMohammad Soleimani
- Department of Agronomy and Plant Breeding, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran.
| | - Houshang Alizadeh
- Department of Agronomy and Plant Breeding, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
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2
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Singh JKD, Mazumdar P, Othman RY, Harikrishna JA. Adding value to banana farming: Antibody production in post-harvest leaves. J Biotechnol 2024; 387:69-78. [PMID: 38582406 DOI: 10.1016/j.jbiotec.2024.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 04/01/2024] [Accepted: 04/03/2024] [Indexed: 04/08/2024]
Abstract
Banana, a globally popular fruit, is widely cultivated in tropical and sub-tropical regions. After fruit harvest, remaining banana plant materials are low-value byproducts, mostly composted or used as fibre or for food packaging. As an aim to potentially increase farmer income, this study explored underutilised banana biomass as a novel plant tissue for production of a high-value product. Protein scFvTG130 used in this study, is an anti-toxoplasma single chain variable fragment antibody that can be used in diagnostics and neutralising the Toxoplasma gondii pathogen. Using detached banana leaves, we investigated the factors influencing the efficacy of a transient expression system using reporter genes and recombinant protein, scFvTG130. Transient expression was optimal at 2 days after detached banana leaves were vacuum infiltrated at 0.08 MPa vacuum pressure for a duration of 3 min with 0.01% (v/v) Tween20 using Agrobacterium strain GV3101 harbouring disarmed virus-based vector pIR-GFPscFvTG130. The highest concentration of anti-toxoplasma scFvTG130 antibody obtained using detached banana leaves was 22.8 µg/g fresh leaf tissue. This first study using detached banana leaf tissue for the transient expression of a recombinant protein, successfully demonstrated anti-toxoplasma scFvTG130 antibody expression, supporting the potential application for other related proteins using an underutilised detached banana leaf tissue.
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Affiliation(s)
- Jasdeep Kaur Darsan Singh
- Centre for Research in Biotechnology for Agriculture (CEBAR), Universiti Malaya, Kuala Lumpur 50603, Malaysia; Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Purabi Mazumdar
- Centre for Research in Biotechnology for Agriculture (CEBAR), Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Rofina Yasmin Othman
- Centre for Research in Biotechnology for Agriculture (CEBAR), Universiti Malaya, Kuala Lumpur 50603, Malaysia; Institute of Advanced Studies, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Jennifer Ann Harikrishna
- Centre for Research in Biotechnology for Agriculture (CEBAR), Universiti Malaya, Kuala Lumpur 50603, Malaysia; Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia.
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3
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Jiang MC, Hsu WL, Tseng CY, Lin NS, Hsu YH, Hu CC. Development of a tag-free plant-made interferon gamma production system with improved therapeutic efficacy against viruses. Front Bioeng Biotechnol 2024; 11:1341340. [PMID: 38274005 PMCID: PMC10808299 DOI: 10.3389/fbioe.2023.1341340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 12/21/2023] [Indexed: 01/27/2024] Open
Abstract
Plants offer a promising platform for cost-effective production of biologically active therapeutic glycoproteins. In previous studies, we have developed a plant expression system based on Bamboo mosaic virus (BaMV) by incorporating secretory signals and an affinity tag, which resulted in notably enhanced yields of soluble and secreted fusion glycoproteins (FGs) in Nicotiana benthamiana. However, the presence of fusion tags on recombinant glycoproteins is undesirable for biomedical applications. This study aimed to develop a refined expression system that can efficiently produce tag-free glycoproteins in plants, with enhanced efficacy of mature interferon gamma (mIFNγ) against viruses. To accommodate the specific requirement of different target proteins, three enzymatically or chemically cleavable linkers were provided in this renovated BaMV-based expression system. We demonstrated that Tobacco etch virus (TEV) protease could process the specific cleavage site (LTEV) of the fusion protein, designated as SSExtHis(SP)10LTEV-mIFNγ, with optimal efficiency under biocompatible conditions to generate tag-free mIFNγ glycoproteins. The TEV protease and secretory-affinity tag could be effectively removed from the target mIFNγ glycoproteins through Ni2+-NTA chromatography. In addition, the result of an antiviral assay showed that the tag-free mIFNγ glycoproteins exhibited enhanced biological properties against Sindbis virus, with comparable antiviral activity of the commercialized HEK293-expressed hIFNγ. Thus, the improved BaMV-based expression system developed in this study may provide an alternative strategy for producing tag-free therapeutic glycoproteins intended for biomedical applications.
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Affiliation(s)
- Min-Chao Jiang
- PhD Program in Microbial Genomics, National Chung Hsing University and Academia Sinica, Taichung, Taiwan
| | - Wei-Li Hsu
- Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Ching-Yu Tseng
- Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Na-Sheng Lin
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan
| | - Yau-Heiu Hsu
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, Taiwan
- Advanced Plant Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
| | - Chung-Chi Hu
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, Taiwan
- Advanced Plant Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
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4
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Zahmanova G, Aljabali AAA, Takova K, Minkov G, Tambuwala MM, Minkov I, Lomonossoff GP. Green Biologics: Harnessing the Power of Plants to Produce Pharmaceuticals. Int J Mol Sci 2023; 24:17575. [PMID: 38139405 PMCID: PMC10743837 DOI: 10.3390/ijms242417575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/11/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023] Open
Abstract
Plants are increasingly used for the production of high-quality biological molecules for use as pharmaceuticals and biomaterials in industry. Plants have proved that they can produce life-saving therapeutic proteins (Elelyso™-Gaucher's disease treatment, ZMapp™-anti-Ebola monoclonal antibodies, seasonal flu vaccine, Covifenz™-SARS-CoV-2 virus-like particle vaccine); however, some of these therapeutic proteins are difficult to bring to market, which leads to serious difficulties for the manufacturing companies. The closure of one of the leading companies in the sector (the Canadian biotech company Medicago Inc., producer of Covifenz) as a result of the withdrawal of investments from the parent company has led to the serious question: What is hindering the exploitation of plant-made biologics to improve health outcomes? Exploring the vast potential of plants as biological factories, this review provides an updated perspective on plant-derived biologics (PDB). A key focus is placed on the advancements in plant-based expression systems and highlighting cutting-edge technologies that streamline the production of complex protein-based biologics. The versatility of plant-derived biologics across diverse fields, such as human and animal health, industry, and agriculture, is emphasized. This review also meticulously examines regulatory considerations specific to plant-derived biologics, shedding light on the disparities faced compared to biologics produced in other systems.
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Affiliation(s)
- Gergana Zahmanova
- Department of Plant Physiology and Molecular Biology, University of Plovdiv, 4000 Plovdiv, Bulgaria; (K.T.)
- Center of Plant Systems Biology and Biotechnology, 4000 Plovdiv, Bulgaria
| | - Alaa A. A. Aljabali
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Yarmouk University, Irbid 21163, Jordan;
| | - Katerina Takova
- Department of Plant Physiology and Molecular Biology, University of Plovdiv, 4000 Plovdiv, Bulgaria; (K.T.)
| | - George Minkov
- Department of Plant Physiology and Molecular Biology, University of Plovdiv, 4000 Plovdiv, Bulgaria; (K.T.)
| | - Murtaza M. Tambuwala
- Lincoln Medical School, University of Lincoln, Brayford Pool Campus, Lincoln LN6 7TS, UK;
| | - Ivan Minkov
- Center of Plant Systems Biology and Biotechnology, 4000 Plovdiv, Bulgaria
- Institute of Molecular Biology and Biotechnologies, 4108 Markovo, Bulgaria
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Blokhina EA, Mardanova ES, Zykova AA, Stepanova LA, Shuklina MA, Tsybalova LM, Ravin NV. Plant-Produced Nanoparticles Based on Artificial Self-Assembling Peptide Bearing the Influenza M2e Epitope. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12112228. [PMID: 37299207 DOI: 10.3390/plants12112228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 05/23/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023]
Abstract
Despite advances in vaccine development, influenza remains a persistent global health threat and the search for a broad-spectrum recombinant vaccine against influenza continues. The extracellular domain of the transmembrane protein M2 (M2e) of the influenza A virus is highly conserved and can be used to develop a universal vaccine. M2e is a poor immunogen by itself, but it becomes highly immunogenic when linked to an appropriate carrier. Here, we report the transient expression of a recombinant protein comprising four tandem copies of M2e fused to an artificial self-assembling peptide (SAP) in plants. The hybrid protein was efficiently expressed in Nicotiana benthamiana using the self-replicating potato virus X-based vector pEff. The protein was purified using metal affinity chromatography under denaturing conditions. The hybrid protein was capable of self-assembly in vitro into spherical particles 15-30 nm in size. The subcutaneous immunization of mice with M2e-carrying nanoparticles induced high levels of M2e-specific IgG antibodies in serum and mucosal secretions. Immunization provided mice with protection against a lethal influenza A virus challenge. SAP-based nanoparticles displaying M2e peptides can be further used to develop a recombinant "universal" vaccine against influenza A produced in plants.
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Affiliation(s)
- Elena A Blokhina
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia
| | - Eugenia S Mardanova
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia
| | - Anna A Zykova
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia
| | - Liudmila A Stepanova
- Smorodintsev Research Institute of Influenza, Russian Ministry of Health, 197376 St. Petersburg, Russia
| | - Marina A Shuklina
- Smorodintsev Research Institute of Influenza, Russian Ministry of Health, 197376 St. Petersburg, Russia
| | - Liudmila M Tsybalova
- Smorodintsev Research Institute of Influenza, Russian Ministry of Health, 197376 St. Petersburg, Russia
| | - Nikolai V Ravin
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia
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6
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Bravo-Vázquez LA, Mora-Hernández EO, Rodríguez AL, Sahare P, Bandyopadhyay A, Duttaroy AK, Paul S. Current Advances of Plant-Based Vaccines for Neurodegenerative Diseases. Pharmaceutics 2023; 15:pharmaceutics15020711. [PMID: 36840033 PMCID: PMC9963606 DOI: 10.3390/pharmaceutics15020711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/11/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
Neurodegenerative diseases (NDDs) are characterized by the progressive degeneration and/or loss of neurons belonging to the central nervous system, and represent one of the major global health issues. Therefore, a number of immunotherapeutic approaches targeting the non-functional or toxic proteins that induce neurodegeneration in NDDs have been designed in the last decades. In this context, due to unprecedented advances in genetic engineering techniques and molecular farming technology, pioneering plant-based immunogenic antigen expression systems have been developed aiming to offer reliable alternatives to deal with important NDDs, including Alzheimer's disease, Parkinson's disease, and multiple sclerosis. Diverse reports have evidenced that plant-made vaccines trigger significant immune responses in model animals, supported by the production of antibodies against the aberrant proteins expressed in the aforementioned NDDs. Moreover, these immunogenic tools have various advantages that make them a viable alternative for preventing and treating NDDs, such as high scalability, no risk of contamination with human pathogens, cold chain free production, and lower production costs. Hence, this article presents an overview of the current progress on plant-manufactured vaccines for NDDs and discusses its future prospects.
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Affiliation(s)
- Luis Alberto Bravo-Vázquez
- School of Engineering and Sciences, Campus Querétaro, Tecnologico de Monterrey, Av. Epigmenio González, No. 500 Fracc. San Pablo, Querétaro 76130, Mexico
| | - Erick Octavio Mora-Hernández
- School of Engineering and Sciences, Campus Mexico City, Tecnologico de Monterrey, Calle del Puente, No. 222 Col. Ejidos de Huipulco, Tlalpan, Mexico City 14380, Mexico
| | - Alma L. Rodríguez
- School of Engineering and Sciences, Campus Querétaro, Tecnologico de Monterrey, Av. Epigmenio González, No. 500 Fracc. San Pablo, Querétaro 76130, Mexico
| | - Padmavati Sahare
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, Campus UNAM 3001, Juriquilla, Querétaro 76230, Mexico
| | - Anindya Bandyopadhyay
- International Rice Research Institute, Manila 4031, Philippines
- Reliance Industries Ltd., Navi Mumbai 400701, India
| | - Asim K. Duttaroy
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, P.O. Box 1046 Blindern, 0317 Oslo, Norway
| | - Sujay Paul
- School of Engineering and Sciences, Campus Querétaro, Tecnologico de Monterrey, Av. Epigmenio González, No. 500 Fracc. San Pablo, Querétaro 76130, Mexico
- Correspondence:
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Ghasemian K, Broer I, Schön J, Killisch R, Kolp N, Springer A, Huckauf J. Oral and Subcutaneous Immunization with a Plant-Produced Mouse-Specific Zona Pellucida 3 Peptide Presented on Hepatitis B Core Antigen Virus-like Particles. Vaccines (Basel) 2023; 11:vaccines11020462. [PMID: 36851339 PMCID: PMC9963689 DOI: 10.3390/vaccines11020462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 02/19/2023] Open
Abstract
A short mouse-specific peptide from zona pellucida 3 (mZP3, amino acids 328-342) has been shown to be associated with antibody-mediated contraception. In this study, we investigated the production of mZP3 in the plant, as an orally applicable host, and examined the immunogenicity of this small peptide in the BALB/c mouse model. The mZP3 peptide was inserted into the major immunodominant region of the hepatitis B core antigen and was produced in Nicotiana benthamiana plants via Agrobacterium-mediated transient expression. Soluble HBcAg-mZP3 accumulated at levels up to 2.63 mg/g leaf dry weight (LDW) containing ~172 µg/mg LDW mZP3 peptide. Sucrose gradient analysis and electron microscopy indicated the assembly of the HBcAg-mZP3 virus-like particles (VLPs) in the soluble protein fraction. Subcutaneously administered mZP3 peptide displayed on HBcAg VLPs was immunogenic in BALB/c mice at a relatively low dosage (5.5 µg mZP3 per dose) and led to the generation of mZP3-specific antibodies that bound to the native zona pellucida of wild mice. Oral delivery of dried leaves expressing HBcAg-mZP3 also elicited mZP3-specific serum IgG and mucosal IgA that cross-reacted with the zona pellucida of wild mice. According to these results, it is worthwhile to investigate the efficiency of plants producing HBcAg-mZP3 VLPs as immunogenic edible baits in reducing the fertility of wild mice through inducing antibodies that cross-react to the zona pellucida.
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Affiliation(s)
- Khadijeh Ghasemian
- Department of Agrobiotechnology and Risk Assessment for Bio and Gene Technology, Faculty of Agricultural and Environmental Sciences, University of Rostock, 18059 Rostock, Germany
| | - Inge Broer
- Department of Agrobiotechnology and Risk Assessment for Bio and Gene Technology, Faculty of Agricultural and Environmental Sciences, University of Rostock, 18059 Rostock, Germany
| | - Jennifer Schön
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research (IZW), 10315 Berlin, Germany
| | - Richard Killisch
- BIOSERV, Analytik und Medizinprodukte GmbH, 18059 Rostock, Germany
| | - Nadine Kolp
- BIOSERV, Analytik und Medizinprodukte GmbH, 18059 Rostock, Germany
| | - Armin Springer
- Medical Biology and Electron Microscopy Center, Rostock University Medical Center, 18057 Rostock, Germany
| | - Jana Huckauf
- Department of Agrobiotechnology and Risk Assessment for Bio and Gene Technology, Faculty of Agricultural and Environmental Sciences, University of Rostock, 18059 Rostock, Germany
- Correspondence:
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Pirkalkhoran S, Grabowska WR, Kashkoli HH, Mirhassani R, Guiliano D, Dolphin C, Khalili H. Bioengineering of Antibody Fragments: Challenges and Opportunities. Bioengineering (Basel) 2023; 10:bioengineering10020122. [PMID: 36829616 PMCID: PMC9952581 DOI: 10.3390/bioengineering10020122] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
Antibody fragments are used in the clinic as important therapeutic proteins for treatment of indications where better tissue penetration and less immunogenic molecules are needed. Several expression platforms have been employed for the production of these recombinant proteins, from which E. coli and CHO cell-based systems have emerged as the most promising hosts for higher expression. Because antibody fragments such as Fabs and scFvs are smaller than traditional antibody structures and do not require specific patterns of glycosylation decoration for therapeutic efficacy, it is possible to express them in systems with reduced post-translational modification capacity and high expression yield, for example, in plant and insect cell-based systems. In this review, we describe different bioengineering technologies along with their opportunities and difficulties to manufacture antibody fragments with consideration of stability, efficacy and safety for humans. There is still potential for a new production technology with a view of being simple, fast and cost-effective while maintaining the stability and efficacy of biotherapeutic fragments.
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Affiliation(s)
- Sama Pirkalkhoran
- School of Biomedical Science, University of West London, London W5 5RF, UK
| | | | | | | | - David Guiliano
- School of Life Science, College of Liberal Arts and Sciences, University of Westminster, London W1W 6UW, UK
| | - Colin Dolphin
- School of Biomedical Science, University of West London, London W5 5RF, UK
| | - Hanieh Khalili
- School of Biomedical Science, University of West London, London W5 5RF, UK
- School of Pharmacy, University College London, London WC1N 1AX, UK
- Correspondence:
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Wang Y, Fan J, Wei Z, Xing S. Efficient expression of fusion human epidermal growth factor in tobacco chloroplasts. BMC Biotechnol 2023; 23:1. [PMID: 36611158 PMCID: PMC9824920 DOI: 10.1186/s12896-022-00771-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 12/27/2022] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Chloroplast transformation is a robust technology for the expression of recombinant proteins. Various types of pharmaceutical proteins including growth factors have been reported in chloroplasts via chloroplast transformation approach at high expression levels. However, high expression of epidermal growth factor (EGF) in chloroplasts with the technology is still unavailable. RESULTS The present work explored the high-level expression of recombinant EGF, a protein widely applied in many clinical therapies, in tobacco chloroplasts. In this work, homoplastic transgenic plants expressing fusion protein GFP-EGF, which was composed of GFP and EGF via a linker, were generated. The expression of GFP-EGF was confirmed by the combination of green fluorescent observation and Western blotting. The achieved accumulation of the recombinant fusion GFP-EGF was 10.21 ± 0.27% of total soluble proteins (1.57 ± 0.05 g kg- 1 of fresh leaf). The chloroplast-derived GFP-EGF was capable of increasing the cell viability of the NSLC cell line A549 and enhancing the phosphorylation level of the EGF receptor in the A549 cells. CONCLUSION The expression of recombinant EGF in tobacco chloroplasts via chloroplast transformation method was achieved at considerable accumulation level. The attempt gives a good example for the application of chloroplast transformation technology in recombinant pharmaceutical protein production.
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Affiliation(s)
- Yunpeng Wang
- grid.464388.50000 0004 1756 0215Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, 130033 China
| | - Jieying Fan
- grid.464388.50000 0004 1756 0215Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, 130033 China
| | - Zhengyi Wei
- grid.464388.50000 0004 1756 0215Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, 130033 China ,grid.452720.60000 0004 0415 7259Maize Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007 China
| | - Shaochen Xing
- grid.464388.50000 0004 1756 0215Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, 130033 China
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High-Yield Production of Chimeric Hepatitis E Virus-Like Particles Bearing the M2e Influenza Epitope and Receptor Binding Domain of SARS-CoV-2 in Plants Using Viral Vectors. Int J Mol Sci 2022; 23:ijms232415684. [PMID: 36555326 PMCID: PMC9779006 DOI: 10.3390/ijms232415684] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/02/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022] Open
Abstract
Capsid protein of Hepatitis E virus (HEV) is capable of self-assembly into virus-like particles (VLPs) when expressed in Nicotiana benthamiana plants. Such VLPs could be used as carriers of antigens for vaccine development. In this study, we obtained VLPs based on truncated coat protein of HEV bearing the M2e peptide of Influenza A virus or receptor-binding domain of SARS-CoV-2 spike glycoprotein (RBD). We optimized the immunogenic epitopes' presentation by inserting them into the protruding domain of HEV ORF2 at position Tyr485. The fusion proteins were expressed in Nicotiana benthamiana plants using self-replicating potato virus X (PVX)-based vector. The fusion protein HEV/M2, targeted to the cytosol, was expressed at the level of about 300-400 μg per gram of fresh leaf tissue and appeared to be soluble. The fusion protein was purified using metal affinity chromatography under native conditions with the final yield about 200 μg per gram of fresh leaf tissue. The fusion protein HEV/RBD, targeted to the endoplasmic reticulum, was expressed at about 80-100 μg per gram of fresh leaf tissue; the yield after purification was up to 20 μg per gram of fresh leaf tissue. The recombinant proteins HEV/M2 and HEV/RBD formed nanosized virus-like particles that could be recognized by antibodies against inserted epitopes. The ELISA assay showed that antibodies of COVID-19 patients can bind plant-produced HEV/RBD virus-like particles. This study shows that HEV capsid protein is a promising carrier for presentation of foreign antigen.
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Modulation of the Translation Efficiency of Heterologous mRNA and Target Protein Stability in a Plant System: The Case Study of Interferon-αA. PLANTS 2022; 11:plants11192450. [PMID: 36235315 PMCID: PMC9573741 DOI: 10.3390/plants11192450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 11/17/2022]
Abstract
A broad and amazingly intricate network of mechanisms underlying the decoding of a plant genome into the proteome forces the researcher to design new strategies to enhance both the accumulation of recombinant proteins and their purification from plants and to improve the available relevant strategies. In this paper, we propose new approaches to optimize a codon composition of target genes (case study of interferon-αA) and to search for regulatory sequences (case study of 5′UTR), and we demonstrated their effectiveness in increasing the synthesis of recombinant proteins in plant systems. In addition, we convincingly show that the approach utilizing stabilization of the protein product according to the N-end rule or a new protein-stabilizing partner (thermostable lichenase) is sufficiently effective and results in a significant increase in the protein yield manufactured in a plant system. Moreover, it is validly demonstrated that thermostable lichenase as a protein-stabilizing partner not only has no negative effect on the target protein activity (interferon-αA) integrated in its sequence, but rather enhances the accumulation of the target protein product in plant cells. In addition, the retention of lichenase enzyme activity and interferon biological activity after the incubation of plant protein lysates at 65 °C and precipitation of nontarget proteins with ethanol is applicable to a rapid and inexpensive purification of fusion proteins, thereby confirming the utility of thermostable lichenase as a protein-stabilizing partner for plant systems.
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12
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dos Santos C, Franco OL. Advances in the use of plants as potential biofactories in the production of antimicrobial peptides. Pept Sci (Hoboken) 2022. [DOI: 10.1002/pep2.24290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Cristiane dos Santos
- S‐Inova Biotech, Pós‐Graduação em Biotecnologia Universidade Católica Dom Bosco Campo Grande Brazil
| | - Octávio Luiz Franco
- S‐Inova Biotech, Pós‐Graduação em Biotecnologia Universidade Católica Dom Bosco Campo Grande Brazil
- Centro de Análises Proteômicas e Bioquímica, Pós‐Graduação em Ciências Genômicas e Biotecnologia Universidade Católica de Brasília Brasília Brazil
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