1
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Sanchez-Martinez ZV, Alpuche-Lazcano SP, Stuible M, Durocher Y. CHO cells for virus-like particle and subunit vaccine manufacturing. Vaccine 2024; 42:2530-2542. [PMID: 38503664 DOI: 10.1016/j.vaccine.2024.03.034] [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: 01/14/2024] [Revised: 02/27/2024] [Accepted: 03/13/2024] [Indexed: 03/21/2024]
Abstract
Chinese Hamster Ovary (CHO) cells, employed primarily for manufacturing monoclonal antibodies and other recombinant protein (r-protein) therapeutics, are emerging as a promising host for vaccine antigen production. This is exemplified by the recently approved CHO cell-derived subunit vaccines (SUV) against respiratory syncytial virus (RSV) and varicella-zoster virus (VZV), as well as the enveloped virus-like particle (eVLP) vaccine against hepatitis B virus (HBV). Here, we summarize the design, production, and immunogenicity features of these vaccine and review the most recent progress of other CHO-derived vaccines in pre-clinical and clinical development. We also discuss the challenges associated with vaccine production in CHO cells, with a focus on ensuring viral clearance for eVLP products.
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Affiliation(s)
- Zalma V Sanchez-Martinez
- Human Health Therapeutics Research Centre, National Research Council of Canada, Montreal, QC H4P 2R2, Canada; Department of Biochemistry and Molecular Medicine, University of Montreal, Montreal, QC H3T 1J4, Canada
| | - Sergio P Alpuche-Lazcano
- Human Health Therapeutics Research Centre, National Research Council of Canada, Montreal, QC H4P 2R2, Canada
| | - Matthew Stuible
- Human Health Therapeutics Research Centre, National Research Council of Canada, Montreal, QC H4P 2R2, Canada
| | - Yves Durocher
- Human Health Therapeutics Research Centre, National Research Council of Canada, Montreal, QC H4P 2R2, Canada; Department of Biochemistry and Molecular Medicine, University of Montreal, Montreal, QC H3T 1J4, Canada; PROTEO: The Quebec Network for Research on Protein Function, Structure, and Engineering, Université du Québec à Montréal, 201 Avenue du Président Kennedy, Montréal, QC H2X 3Y7, Canada.
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2
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Sator C, Lico C, Pannucci E, Marchetti L, Baschieri S, Warzecha H, Santi L. Plant-Produced Viral Nanoparticles as a Functionalized Catalytic Support for Metabolic Engineering. PLANTS (BASEL, SWITZERLAND) 2024; 13:503. [PMID: 38498408 PMCID: PMC10893517 DOI: 10.3390/plants13040503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 03/20/2024]
Abstract
Substrate channeling could be very useful for plant metabolic engineering; hence, we propose that functionalized supramolecular self-assembly scaffolds can act as enzymatic hubs able to perform reactions in close contiguity. Virus nanoparticles (VNPs) offer an opportunity in this context, and we present a functionalization strategy to display different enzymes on the outer surface of three different VNPs produced in plants. Tomato bushy stunt virus (TBSV) and Potato virus X (PVX) plant viruses were functionalized by the genetic fusion of the E-coil peptide coding sequence to their respective coat proteins genes, while the enzyme lichenase was tagged with the K-coil peptide. Immobilized E-coil VNPs were able to interact in vitro with the plant-produced functionalized lichenase, and catalysis was demonstrated by employing a lichenase assay. To prove this concept in planta, the Hepatitis B core (HBc) virus-like particles (VLPs) were similarly functionalized by genetic fusion with the E-coil sequence, while acyl-activating enzyme 1, olivetolic acid synthase, and olivetolic acid cyclase enzymes were tagged with the K-coil. The transient co-expression of the K-coil-enzymes together with E-coil-VLPs allowed the establishment of the heterologous cannabinoid precursor biosynthetic pathway. Noteworthy, a significantly higher yield of olivetolic acid glucoside was achieved when the scaffold E-coil-VLPs were employed.
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Affiliation(s)
- Christian Sator
- Plant Biotechnology and Metabolic Engineering, Technical University of Darmstadt, Schnittspahnstrasse 4, 65287 Darmstadt, Germany
- Centre for Synthetic Biology, Technical University of Darmstadt, Schnittspahnstrasse 4, 65287 Darmstadt, Germany
| | - Chiara Lico
- Laboratory of Biotechnologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, ENEA, Casaccia Research Center, Via Anguillarese 301, 00123 Rome, Italy; (C.L.); (S.B.)
| | - Elisa Pannucci
- Department of Agriculture and Forest Sciences (DAFNE), University of Tuscia, Via S. Camillo De Lellis, 01100 Viterbo, Italy; (E.P.); (L.M.); (L.S.)
| | - Luca Marchetti
- Department of Agriculture and Forest Sciences (DAFNE), University of Tuscia, Via S. Camillo De Lellis, 01100 Viterbo, Italy; (E.P.); (L.M.); (L.S.)
- Laboratory of Biomedical Technologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, ENEA Casaccia Research Center, Via Anguillarese 301, 00123 Rome, Italy
| | - Selene Baschieri
- Laboratory of Biotechnologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, ENEA, Casaccia Research Center, Via Anguillarese 301, 00123 Rome, Italy; (C.L.); (S.B.)
| | - Heribert Warzecha
- Plant Biotechnology and Metabolic Engineering, Technical University of Darmstadt, Schnittspahnstrasse 4, 65287 Darmstadt, Germany
- Centre for Synthetic Biology, Technical University of Darmstadt, Schnittspahnstrasse 4, 65287 Darmstadt, Germany
| | - Luca Santi
- Department of Agriculture and Forest Sciences (DAFNE), University of Tuscia, Via S. Camillo De Lellis, 01100 Viterbo, Italy; (E.P.); (L.M.); (L.S.)
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3
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Liu C, Yu Y, Fang L, Wang J, Sun C, Li H, Zhuang J, Sun C. Plant-derived nanoparticles and plant virus nanoparticles: Bioactivity, health management, and delivery potential. Crit Rev Food Sci Nutr 2023:1-17. [PMID: 37128778 DOI: 10.1080/10408398.2023.2204375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Natural plants have acquired an increasing attention in biomedical research. Recent studies have revealed that plant-derived nanoparticles (PDNPs), which are nano-sized membrane vesicles released by plants, are one of the important material bases for the health promotion of natural plants. A great deal of research in this field has focused on nanoparticles derived from fresh vegetables and fruits. Generally, PDNPs contain lipids, proteins, nucleic acids, and other active small molecules and exhibit unique biological regulatory activity and editability. Specifically, they have emerged as important mediators of intercellular communication, and thus, are potentially suitable for therapeutic purposes. In this review, PDNPs were extensively explored; by evaluating them systematically starting from the origin and isolation, toward their characteristics, including morphological compositions, biological functions, and delivery potentials, as well as distinguishing them from plant-derived exosomes and highlighting the limitations of the current research. Meanwhile, we elucidated the variations in PDNPs infected by pathogenic microorganisms and emphasized on the biological functions and characteristics of plant virus nanoparticles. After clarifying these problems, it is beneficial to further research on PDNPs in the future and develop their clinical application value.
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Affiliation(s)
- Cun Liu
- College of Traditional Chinese Medicine, Weifang Medical University, Weifang, China
| | - Yang Yu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Liguang Fang
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jia Wang
- State Key Laboratory of Quality Research in Chinese Medicines, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Chunjie Sun
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Huayao Li
- College of Traditional Chinese Medicine, Weifang Medical University, Weifang, China
| | - Jing Zhuang
- Department of Oncology, Weifang Traditional Chinese Hospital, Weifang, China
| | - Changgang Sun
- College of Traditional Chinese Medicine, Weifang Medical University, Weifang, China
- Department of Oncology, Weifang Traditional Chinese Hospital, Weifang, China
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4
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Yuan B, Liu Y, Lv M, Sui Y, Hou S, Yang T, Belhadj Z, Zhou Y, Chang N, Ren Y, Sun C. Virus-like particle-based nanocarriers as an emerging platform for drug delivery. J Drug Target 2023; 31:433-455. [PMID: 36940208 DOI: 10.1080/1061186x.2023.2193358] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
New nanocarrier technologies are emerging, and they have great potential for improving drug delivery, targeting efficiency, and bioavailability. Virus-like particles (VLPs) are natural nanoparticles from animal and plant viruses and bacteriophages. Hence, VLPs present several great advantages, such as morphological uniformity, biocompatibility, reduced toxicity, and easy functionalisation. VLPs can deliver many active ingredients to the target tissue and have great potential as a nanocarrier to overcome the limitations associated with other nanoparticles. This review will focus primarily on the construction and applications of VLPs, particularly as a novel nanocarrier to deliver active ingredients. Herein, the main methods for the construction, purification, and characterisation of VLPs, as well as various VLP-based materials used in delivery systems are summarised. The biological distribution of VLPs in drug delivery, phagocyte-mediated clearance, and toxicity are also discussed.
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Affiliation(s)
| | - Yang Liu
- School of Pharmaceutical Sciences, Zhengzhou University, No.100, Kexue Avenue, Zhengzhou 450001, China
| | - Meilin Lv
- Harbin Medical University-Daqing, Daqing 163319, China
| | - Yilei Sui
- Harbin Medical University-Daqing, Daqing 163319, China
| | - Shenghua Hou
- Harbin Medical University-Daqing, Daqing 163319, China
| | - Tinghui Yang
- Harbin Medical University-Daqing, Daqing 163319, China
| | - Zakia Belhadj
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yulong Zhou
- College of Animal Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Naidan Chang
- Harbin Medical University-Daqing, Daqing 163319, China
| | - Yachao Ren
- Harbin Medical University-Daqing, Daqing 163319, China.,School of Chemistry and Chemical Engineering, Tianjin University of Technology, tianjin, 300000, China
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Plug-and-Display Photo-Switchable Systems on Plant Virus Nanoparticles. BIOTECH (BASEL (SWITZERLAND)) 2022; 11:biotech11040049. [PMID: 36278561 PMCID: PMC9589989 DOI: 10.3390/biotech11040049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/09/2022] [Accepted: 10/19/2022] [Indexed: 11/06/2022]
Abstract
Light can be used to regulate protein interactions with a high degree of spatial and temporal precision. Photo-switchable systems therefore allow the development of controllable protein complexes that can influence various cellular and molecular processes. Here, we describe a plant virus-based nanoparticle shuttle for the distribution of proteins that can be released when exposed to light. Potato virus X (PVX) is often used as a presentation system for heterologous proteins and epitopes, and has ideal properties for biomedical applications such as good tissue penetration and the ability to form hydrogels that present signaling molecules and promote cell adhesion. In this study, we describe three different systems attached to the surface of PVX particles: LOVTRAP, BphP1/QPAS1 and Dronpa145N. We demonstrated the functionality of all three photo-switchable protein complexes in vitro and the successful loading and unloading of PVX particles. The new systems provide the basis for promising applications in the biomedical and biomaterial sciences.
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Zapata-Cuellar L, Gaona-Bernal J, Manuel-Cabrera CA, Martínez-Velázquez M, Sánchez-Hernández C, Elizondo-Quiroga D, Camacho-Villegas TA, Gutiérrez-Ortega A. Development of a Platform for Noncovalent Coupling of Full Antigens to Tobacco Etch Virus-Like Particles by Means of Coiled-Coil Oligomerization Motifs. Molecules 2021; 26:molecules26154436. [PMID: 34361589 PMCID: PMC8348948 DOI: 10.3390/molecules26154436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 07/14/2021] [Accepted: 07/15/2021] [Indexed: 11/29/2022] Open
Abstract
Virus-like particles are excellent inducers of the adaptive immune response of humans and are presently being used as scaffolds for the presentation of foreign peptides and antigens derived from infectious microorganisms for subunit vaccine development. The most common approaches for peptide and antigen presentation are translational fusions and chemical coupling, but some alternatives that seek to simplify the coupling process have been reported recently. In this work, an alternative platform for coupling full antigens to virus-like particles is presented. Heterodimerization motifs inserted in both Tobacco etch virus coat protein and green fluorescent protein directed the coupling process by simple mixing, and the obtained complexes were easily taken up by a macrophage cell line.
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Affiliation(s)
- Lorena Zapata-Cuellar
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Unidad de Biotecnología Médica y Farmacéutica, Normalistas 800, Colinas de la Normal, Guadalajara 44270, Mexico; (L.Z.-C.); (C.A.M.-C.); (M.M.-V.); (D.E.-Q.)
| | - Jorge Gaona-Bernal
- Centro Universitario de Ciencias de la Salud, Departamento de Microbiología y Patología, Universidad de Guadalajara, Sierra Mojada 950, Independencia Oriente, Guadalajara 44340, Mexico;
| | - Carlos Alberto Manuel-Cabrera
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Unidad de Biotecnología Médica y Farmacéutica, Normalistas 800, Colinas de la Normal, Guadalajara 44270, Mexico; (L.Z.-C.); (C.A.M.-C.); (M.M.-V.); (D.E.-Q.)
| | - Moisés Martínez-Velázquez
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Unidad de Biotecnología Médica y Farmacéutica, Normalistas 800, Colinas de la Normal, Guadalajara 44270, Mexico; (L.Z.-C.); (C.A.M.-C.); (M.M.-V.); (D.E.-Q.)
| | - Carla Sánchez-Hernández
- Centro Universitario de Ciencias Biológicas y Agropecuarias, Departamento de Producción Agrícola, Universidad de Guadalajara, Carretera Guadalajara-Nogales km 15.5, Zapopan 45510, Mexico;
| | - Darwin Elizondo-Quiroga
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Unidad de Biotecnología Médica y Farmacéutica, Normalistas 800, Colinas de la Normal, Guadalajara 44270, Mexico; (L.Z.-C.); (C.A.M.-C.); (M.M.-V.); (D.E.-Q.)
| | - Tanya Amanda Camacho-Villegas
- CONACYT-CIATEJ, Unidad de Biotecnología Médica y Farmacéutica, Normalistas 800, Colinas de la Normal, Guadalajara 44270, Mexico;
| | - Abel Gutiérrez-Ortega
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Unidad de Biotecnología Médica y Farmacéutica, Normalistas 800, Colinas de la Normal, Guadalajara 44270, Mexico; (L.Z.-C.); (C.A.M.-C.); (M.M.-V.); (D.E.-Q.)
- Correspondence:
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Venkataraman S, Hefferon K, Makhzoum A, Abouhaidar M. Combating Human Viral Diseases: Will Plant-Based Vaccines Be the Answer? Vaccines (Basel) 2021; 9:vaccines9070761. [PMID: 34358177 PMCID: PMC8310141 DOI: 10.3390/vaccines9070761] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/02/2021] [Accepted: 07/04/2021] [Indexed: 12/28/2022] Open
Abstract
Molecular pharming or the technology of application of plants and plant cell culture to manufacture high-value recombinant proteins has progressed a long way over the last three decades. Whether generated in transgenic plants by stable expression or in plant virus-based transient expression systems, biopharmaceuticals have been produced to combat several human viral diseases that have impacted the world in pandemic proportions. Plants have been variously employed in expressing a host of viral antigens as well as monoclonal antibodies. Many of these biopharmaceuticals have shown great promise in animal models and several of them have performed successfully in clinical trials. The current review elaborates the strategies and successes achieved in generating plant-derived vaccines to target several virus-induced health concerns including highly communicable infectious viral diseases. Importantly, plant-made biopharmaceuticals against hepatitis B virus (HBV), hepatitis C virus (HCV), the cancer-causing virus human papillomavirus (HPV), human immunodeficiency virus (HIV), influenza virus, zika virus, and the emerging respiratory virus, severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) have been discussed. The use of plant virus-derived nanoparticles (VNPs) and virus-like particles (VLPs) in generating plant-based vaccines are extensively addressed. The review closes with a critical look at the caveats of plant-based molecular pharming and future prospects towards further advancements in this technology. The use of biopharmed viral vaccines in human medicine and as part of emergency response vaccines and therapeutics in humans looks promising for the near future.
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Affiliation(s)
- Srividhya Venkataraman
- Virology Laboratory, Department of Cell & Systems Biology, University of Toronto, Toronto, ON M5S 3B2, Canada; (K.H.); (M.A.)
- Correspondence:
| | - Kathleen Hefferon
- Virology Laboratory, Department of Cell & Systems Biology, University of Toronto, Toronto, ON M5S 3B2, Canada; (K.H.); (M.A.)
| | - Abdullah Makhzoum
- Department of Biological Sciences & Biotechnology, Botswana International University of Science & Technology, Palapye, Botswana;
| | - Mounir Abouhaidar
- Virology Laboratory, Department of Cell & Systems Biology, University of Toronto, Toronto, ON M5S 3B2, Canada; (K.H.); (M.A.)
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Thuenemann EC, Byrne MJ, Peyret H, Saunders K, Castells-Graells R, Ferriol I, Santoni M, Steele JFC, Ranson NA, Avesani L, Lopez-Moya JJ, Lomonossoff GP. A Replicating Viral Vector Greatly Enhances Accumulation of Helical Virus-Like Particles in Plants. Viruses 2021; 13:885. [PMID: 34064959 PMCID: PMC8150850 DOI: 10.3390/v13050885] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 11/16/2022] Open
Abstract
The production of plant helical virus-like particles (VLPs) via plant-based expression has been problematic with previous studies suggesting that an RNA scaffold may be necessary for their efficient production. To examine this, we compared the accumulation of VLPs from two potexviruses, papaya mosaic virus and alternanthera mosaic virus (AltMV), when the coat proteins were expressed from a replicating potato virus X- based vector (pEff) and a non-replicating vector (pEAQ-HT). Significantly greater quantities of VLPs could be purified when pEff was used. The pEff system was also very efficient at producing VLPs of helical viruses from different virus families. Examination of the RNA content of AltMV and tobacco mosaic virus VLPs produced from pEff revealed the presence of vector-derived RNA sequences, suggesting that the replicating RNA acts as a scaffold for VLP assembly. Cryo-EM analysis of the AltMV VLPs showed they had a structure very similar to that of authentic potexvirus particles. Thus, we conclude that vectors generating replicating forms of RNA, such as pEff, are very efficient for producing helical VLPs.
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Affiliation(s)
- Eva C. Thuenemann
- John Innes Centre, Department of Biochemistry and Metabolism, Norwich Research Park, Norwich NR4 7UH, UK; (H.P.); (K.S.); (R.C.-G.); (J.F.C.S.)
| | - Matthew J. Byrne
- Astbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK; (M.J.B.); (N.A.R.)
| | - Hadrien Peyret
- John Innes Centre, Department of Biochemistry and Metabolism, Norwich Research Park, Norwich NR4 7UH, UK; (H.P.); (K.S.); (R.C.-G.); (J.F.C.S.)
| | - Keith Saunders
- John Innes Centre, Department of Biochemistry and Metabolism, Norwich Research Park, Norwich NR4 7UH, UK; (H.P.); (K.S.); (R.C.-G.); (J.F.C.S.)
| | - Roger Castells-Graells
- John Innes Centre, Department of Biochemistry and Metabolism, Norwich Research Park, Norwich NR4 7UH, UK; (H.P.); (K.S.); (R.C.-G.); (J.F.C.S.)
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
| | - Inmaculada Ferriol
- Centre for Research in Agricultural Genomics (CRAG, CSIC-IRTA-UAB-UB), 08193 Cerdanyola del Vallès, Spain; (I.F.); (J.J.L.-M.)
- Consejo Superior de Investigaciones Científicas (CSIC), 08003 Barcelona, Spain
| | - Mattia Santoni
- Diamante srl. Strada Le Grazie, 15, 37134 Verona, Italy;
| | - John F. C. Steele
- John Innes Centre, Department of Biochemistry and Metabolism, Norwich Research Park, Norwich NR4 7UH, UK; (H.P.); (K.S.); (R.C.-G.); (J.F.C.S.)
- Piramal Healthcare UK Ltd., Piramal Pharma Solutions, Earls Road, Grangemouth, Stirlingshire FK3 8XG, UK
| | - Neil A. Ranson
- Astbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK; (M.J.B.); (N.A.R.)
| | - Linda Avesani
- Department of Biotechnology, University of Verona, Strada Le Grazie, 15, 37134 Verona, Italy;
| | - Juan Jose Lopez-Moya
- Centre for Research in Agricultural Genomics (CRAG, CSIC-IRTA-UAB-UB), 08193 Cerdanyola del Vallès, Spain; (I.F.); (J.J.L.-M.)
- Consejo Superior de Investigaciones Científicas (CSIC), 08003 Barcelona, Spain
| | - George P. Lomonossoff
- John Innes Centre, Department of Biochemistry and Metabolism, Norwich Research Park, Norwich NR4 7UH, UK; (H.P.); (K.S.); (R.C.-G.); (J.F.C.S.)
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9
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Butkovich N, Li E, Ramirez A, Burkhardt AM, Wang SW. Advancements in protein nanoparticle vaccine platforms to combat infectious disease. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2021; 13:e1681. [PMID: 33164326 PMCID: PMC8052270 DOI: 10.1002/wnan.1681] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 10/04/2020] [Accepted: 10/08/2020] [Indexed: 12/14/2022]
Abstract
Infectious diseases are a major threat to global human health, yet prophylactic treatment options can be limited, as safe and efficacious vaccines exist only for a fraction of all diseases. Notably, devastating diseases such as acquired immunodeficiency syndrome (AIDS) and coronavirus disease of 2019 (COVID-19) currently do not have vaccine therapies. Conventional vaccine platforms, such as live attenuated vaccines and whole inactivated vaccines, can be difficult to manufacture, may cause severe side effects, and can potentially induce severe infection. Subunit vaccines carry far fewer safety concerns due to their inability to cause vaccine-based infections. The applicability of protein nanoparticles (NPs) as vaccine scaffolds is promising to prevent infectious diseases, and they have been explored for a number of viral, bacterial, fungal, and parasitic diseases. Many types of protein NPs exist, including self-assembling NPs, bacteriophage-derived NPs, plant virus-derived NPs, and human virus-based vectors, and these particular categories will be covered in this review. These vaccines can elicit strong humoral and cellular immune responses against specific pathogens, as well as provide protection against infection in a number of animal models. Furthermore, published clinical trials demonstrate the promise of applying these NP vaccine platforms, which include bacteriophage-derived NPs, in addition to multiple viral vectors that are currently used in the clinic. The continued investigations of protein NP vaccine platforms are critical to generate safer alternatives to current vaccines, advance vaccines for diseases that currently lack effective prophylactic therapies, and prepare for the rapid development of new vaccines against emerging infectious diseases. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Infectious Disease Biology-Inspired Nanomaterials > Protein and Virus-Based Structures.
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Affiliation(s)
- Nina Butkovich
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA 92697 USA
| | - Enya Li
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA 92697 USA
| | - Aaron Ramirez
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA 92697 USA
| | - Amanda M. Burkhardt
- Department of Clinical Pharmacy, School of Pharmacy, University of Southern California, Los Angeles, CA 90089 USA
| | - Szu-Wen Wang
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA 92697 USA
- Department of Biomedical Engineering, University of California, Irvine, CA 92697 USA
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10
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Lico C, Santi L, Baschieri S, Noris E, Marusic C, Donini M, Pedrazzini E, Maga G, Franconi R, Di Bonito P, Avesani L. Plant Molecular Farming as a Strategy Against COVID-19 - The Italian Perspective. FRONTIERS IN PLANT SCIENCE 2020; 11:609910. [PMID: 33381140 PMCID: PMC7768017 DOI: 10.3389/fpls.2020.609910] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 11/13/2020] [Indexed: 05/05/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has killed more than 37,000 people in Italy and has caused widespread socioeconomic disruption. Urgent measures are needed to contain and control the virus, particularly diagnostic kits for detection and surveillance, therapeutics to reduce mortality among the severely affected, and vaccines to protect the remaining population. Here we discuss the potential role of plant molecular farming in the rapid and scalable supply of protein antigens as reagents and vaccine candidates, antibodies for virus detection and passive immunotherapy, other therapeutic proteins, and virus-like particles as novel vaccine platforms. We calculate the amount of infrastructure and production capacity needed to deal with predictable subsequent waves of COVID-19 in Italy by pooling expertise in plant molecular farming, epidemiology and the Italian health system. We calculate the investment required in molecular farming infrastructure that would enable us to capitalize on this technology, and provide a roadmap for the development of diagnostic reagents and biopharmaceuticals using molecular farming in plants to complement production methods based on the cultivation of microbes and mammalian cells.
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Affiliation(s)
- Chiara Lico
- Laboratory of Biotechnology, Biotechnologies and Agroindustry Division, Department of Sustainability, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy
| | - Luca Santi
- Department of Agriculture and Forest Science, Tuscia University, Viterbo, Italy
| | - Selene Baschieri
- Laboratory of Biotechnology, Biotechnologies and Agroindustry Division, Department of Sustainability, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy
| | - Emanuela Noris
- Institute for Sustainable Plant Protection, National Research Council IPSP-CNR, Turin, Italy
| | - Carla Marusic
- Laboratory of Biotechnology, Biotechnologies and Agroindustry Division, Department of Sustainability, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy
| | - Marcello Donini
- Laboratory of Biotechnology, Biotechnologies and Agroindustry Division, Department of Sustainability, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy
| | - Emanuela Pedrazzini
- Institute for Sustainable Plant Protection, National Research Council IBBA-CNR, Turin, Italy
| | - Giovanni Maga
- Institute of Molecular Genetics IGM-CNR “Luigi Luca Cavalli-Sforza,”Pavia, Italy
| | - Rosella Franconi
- Laboratory of Biomedical Technologies, Health Technologies Division, Department of Sustainability, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy
| | - Paola Di Bonito
- Department of Infectious Diseases, Viral Hepatitis, Oncoviruses and Retroviruses (EVOR) Unit, Istituto Superiore di Sanità, Rome, Italy
| | - Linda Avesani
- Department of Biotechnology, University of Verona, Verona, Italy
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11
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Dickmeis C, Kauth L, Commandeur U. From infection to healing: The use of plant viruses in bioactive hydrogels. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2020; 13:e1662. [PMID: 32677315 DOI: 10.1002/wnan.1662] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 06/08/2020] [Accepted: 06/23/2020] [Indexed: 12/13/2022]
Abstract
Plant viruses show great diversity in shape and size, but each species forms unique nucleoprotein particles that are symmetrical and monodisperse. The genetically programed structure of plant viruses allows them to be modified by genetic engineering, bioconjugation, or encapsulation to form virus nanoparticles (VNPs) that are suitable for a broad range of applications. Plant VNPs can be used to present foreign proteins or epitopes, to construct inorganic hybrid materials, or to carry molecular cargos, allowing their utilization as imaging reagents, immunomodulators, therapeutics, nanoreactors, and biosensors. The medical applications of plant viruses benefit from their inability to infect and replicate in human cells. The structural properties of plant viruses also make them useful as components of hydrogels for tissue engineering. Hydrogels are three-dimensional networks composed of hydrophilic polymers that can absorb large amounts of water. They are used as supports for tissue regeneration, as reservoirs for controlled drug release, and are found in contact lenses, many wound healing materials, and hygiene products. They are also useful in ecological applications such as wastewater treatment. Hydrogel-based matrices are structurally similar to the native extracellular matrix (ECM) and provide a scaffold for the attachment of cells. To fully replicate the functions of the ECM it is necessary to augment hydrogels with biological cues that regulate cellular interactions. This can be achieved by incorporating functionalized VNPs displaying ligands that influence the mechanical characteristics of hydrogels and their biological properties, promoting the survival, proliferation, migration, and differentiation of embedded cells. This article is categorized under: Implantable Materials and Surgical Technologies > Nanomaterials and Implants Biology-Inspired Nanomaterials > Protein and Virus-Based Structures Implantable Materials and Surgical Technologies > Nanotechnology in Tissue Repair and Replacement.
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Affiliation(s)
- Christina Dickmeis
- Institute for Molecular Biotechnology, RWTH Aachen University, Aachen, Germany
| | - Louisa Kauth
- Institute for Molecular Biotechnology, RWTH Aachen University, Aachen, Germany
| | - Ulrich Commandeur
- Institute for Molecular Biotechnology, RWTH Aachen University, Aachen, Germany
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12
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Evtushenko EA, Ryabchevskaya EM, Nikitin NA, Atabekov JG, Karpova OV. Plant virus particles with various shapes as potential adjuvants. Sci Rep 2020; 10:10365. [PMID: 32587281 PMCID: PMC7316779 DOI: 10.1038/s41598-020-67023-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 06/01/2020] [Indexed: 01/15/2023] Open
Abstract
Plant viruses are biologically safe for mammals and can be successfully used as a carrier/platform to present foreign epitopes in the course of creating novel putative vaccines. However, there is mounting evidence that plant viruses, their virus-like and structurally modified particles may also have an immunopotentiating effect on antigens not bound with their surface covalently. Here, we present data on the adjuvant properties of plant viruses with various shapes (Tobacco mosaic virus, TMV; Potato virus X, PVX; Cauliflower mosaic virus, CaMV; Bean mild mosaic virus, BMMV) and structurally modified TMV spherical particles (SPs). We have analysed the effectiveness of immune response to individual model antigens (ovalbumin, OVA/hen egg lysozyme, HEL) and to OVA/HEL in compositions with plant viruses/SPs, and have shown that CaMV, TMV and SPs can effectively induce total IgG titers to model antigen. Some intriguing data were obtained when analysing the immune response to the plant viruses/SPs themselves. Strong immunity was induced to CaMV, BMMV and PVX, whereas TMV and SPs stimulated considerably lower self-IgG titers. Our results provide new insights into the immunopotentiating properties of plant viruses and can be useful in devising adjuvants based on plant viruses.
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Affiliation(s)
- Ekaterina A Evtushenko
- Department of Virology, Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, Moscow, 119234, Russian Federation.
| | - Ekaterina M Ryabchevskaya
- Department of Virology, Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, Moscow, 119234, Russian Federation
| | - Nikolai A Nikitin
- Department of Virology, Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, Moscow, 119234, Russian Federation
| | - Joseph G Atabekov
- Department of Virology, Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, Moscow, 119234, Russian Federation
| | - Olga V Karpova
- Department of Virology, Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, Moscow, 119234, Russian Federation
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13
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Grinzato A, Kandiah E, Lico C, Betti C, Baschieri S, Zanotti G. Atomic structure of potato virus X, the prototype of the Alphaflexiviridae family. Nat Chem Biol 2020; 16:564-569. [DOI: 10.1038/s41589-020-0502-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 02/16/2020] [Indexed: 01/31/2023]
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14
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Santoni M, Zampieri R, Avesani L. Plant Virus Nanoparticles for Vaccine Applications. Curr Protein Pept Sci 2020; 21:344-356. [PMID: 32048964 DOI: 10.2174/1389203721666200212100255] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 09/16/2019] [Accepted: 10/19/2019] [Indexed: 12/29/2022]
Abstract
In the rapidly evolving field of nanotechnology, plant virus nanoparticles (pVNPs) are emerging as powerful tools in diverse applications ranging from biomedicine to materials science. The proteinaceous structure of plant viruses allows the capsid structure to be modified by genetic engineering and/or chemical conjugation with nanoscale precision. This means that pVNPs can be engineered to display peptides and proteins on their external surface, including immunodominant peptides derived from pathogens allowing pVNPs to be used for active immunization. In this context, pVNPs are safer than VNPs derived from mammalian viruses because there is no risk of infection or reversion to pathogenicity. Furthermore, pVNPs can be produced rapidly and inexpensively in natural host plants or heterologous production platforms. In this review, we discuss the use of pVNPs for the delivery of peptide antigens to the host immune in pre-clinical studies with the final aim of promoting systemic immunity against the corresponding pathogens. Furthermore, we described the versatility of plant viruses, with innate immunostimulatory properties, in providing a huge natural resource of carriers that can be used to develop the next generation of sustainable vaccines.
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Affiliation(s)
- Mattia Santoni
- Department of Biotechnology, University of Verona. Strada Le Grazie, 15. 37134 Verona, Italy
| | | | - Linda Avesani
- Department of Biotechnology, University of Verona. Strada Le Grazie, 15. 37134 Verona, Italy
- Diamante srl. Strada Le Grazie, 15. 37134 Verona, Italy
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15
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Venkataraman S, Reddy VS, Khurana SMP. Biomedical Applications of Viral Nanoparticles in Vaccine Therapy. Nanobiomedicine (Rij) 2020. [DOI: 10.1007/978-981-32-9898-9_9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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16
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Balke I, Zeltins A. Use of plant viruses and virus-like particles for the creation of novel vaccines. Adv Drug Deliv Rev 2019; 145:119-129. [PMID: 30172923 DOI: 10.1016/j.addr.2018.08.007] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 07/24/2018] [Accepted: 08/27/2018] [Indexed: 12/15/2022]
Abstract
In recent decades, the development of plant virology and genetic engineering techniques has resulted in the construction of plant virus-based vaccines for protection against different infectious agents, cancers and autoimmune diseases in both humans and animals. Interaction studies between plant viruses and mammalian organisms have suggested that plant viruses and virus-like particles (VLPs) are safe and noninfectious to humans and animals. Plant viruses with introduced antigens are powerful vaccine components due to their strongly organized, repetitive spatial structure; they can elicit strong immune responses similar to those observed with infectious mammalian viruses. The analysis of published data demonstrated that at least 73 experimental vaccines, including 61 prophylactic and 12 therapeutic vaccines, have been constructed using plant viruses as a carrier structure for presentation of different antigens. This information clearly demonstrates that noninfectious viruses are also applicable as vaccine carriers. Moreover, several plant viruses have been used for platform development, and corresponding vaccines are currently being tested in human and veterinary clinical trials. This review therefore discusses the main principles of plant VLP vaccine construction, emphasizing the physical, chemical, genetic and immunological aspects. Results of the latest studies suggest that several plant virus-based vaccines will join the list of approved human and animal vaccines in the near future.
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Affiliation(s)
- Ina Balke
- Latvian Biomedical Research and Study Centre, Ratsupites 1, Riga LV1067, Latvia
| | - Andris Zeltins
- Latvian Biomedical Research and Study Centre, Ratsupites 1, Riga LV1067, Latvia.
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17
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Röder J, Dickmeis C, Commandeur U. Small, Smaller, Nano: New Applications for Potato Virus X in Nanotechnology. FRONTIERS IN PLANT SCIENCE 2019; 10:158. [PMID: 30838013 PMCID: PMC6390637 DOI: 10.3389/fpls.2019.00158] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 01/29/2019] [Indexed: 05/08/2023]
Abstract
Nanotechnology is an expanding interdisciplinary field concerning the development and application of nanostructured materials derived from inorganic compounds or organic polymers and peptides. Among these latter materials, proteinaceous plant virus nanoparticles have emerged as a key platform for the introduction of tailored functionalities by genetic engineering and conjugation chemistry. Tobacco mosaic virus and Cowpea mosaic virus have already been developed for bioimaging, vaccination and electronics applications, but the flexible and filamentous Potato virus X (PVX) has received comparatively little attention. The filamentous structure of PVX particles allows them to carry large payloads, which are advantageous for applications such as biomedical imaging in which multi-functional scaffolds with a high aspect ratio are required. In this context, PVX achieves superior tumor homing and retention properties compared to spherical nanoparticles. Because PVX is a protein-based nanoparticle, its unique functional properties are combined with enhanced biocompatibility, making it much more suitable for biomedical applications than synthetic nanomaterials. Moreover, PVX nanoparticles have very low toxicity in vivo, and superior pharmacokinetic profiles. This review focuses on the production of PVX nanoparticles engineered using chemical and/or biological techniques, and describes current and future opportunities and challenges for the application of PVX nanoparticles in medicine, diagnostics, materials science, and biocatalysis.
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Affiliation(s)
| | | | - Ulrich Commandeur
- Institute for Molecular Biotechnology, RWTH Aachen University, Aachen, Germany
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18
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Ibrahim A, Odon V, Kormelink R. Plant Viruses in Plant Molecular Pharming: Toward the Use of Enveloped Viruses. FRONTIERS IN PLANT SCIENCE 2019; 10:803. [PMID: 31275344 PMCID: PMC6594412 DOI: 10.3389/fpls.2019.00803] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 06/04/2019] [Indexed: 05/03/2023]
Abstract
Plant molecular pharming has emerged as a reliable platform for recombinant protein expression providing a safe and low-cost alternative to bacterial and mammalian cells-based systems. Simultaneously, plant viruses have evolved from pathogens to molecular tools for recombinant protein expression, chimaeric viral vaccine production, and lately, as nanoagents for drug delivery. This review summarizes the genesis of viral vectors and agroinfection, the development of non-enveloped viruses for various biotechnological applications, and the on-going research on enveloped plant viruses.
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19
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Alemzadeh E, Dehshahri A, Izadpanah K, Ahmadi F. Plant virus nanoparticles: Novel and robust nanocarriers for drug delivery and imaging. Colloids Surf B Biointerfaces 2018; 167:20-27. [PMID: 29625419 DOI: 10.1016/j.colsurfb.2018.03.026] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 02/09/2018] [Accepted: 03/19/2018] [Indexed: 12/21/2022]
Abstract
Nanoparticles have been gained much attention for biomedical applications. A promising type of nanocarriers is viral nanoparticles (VNPs) which are natural bio-nanomaterials derived from different type of viruses. Amongst VNPs, plant VNPs present several pros over general nanoparticles such as liposomes, dendrimers or quantum dots. Some of these advantages include: degradability, safety for human, known structures to atomic level, possibility of attaching ligand with vigorous control on structure, availability for genetic and chemical manipulations and very flexible methods to prepare them. Variety of plant viruses have been modified by chemical and genetic modification of their inner cavities and their outer-surfaces. These modifications provide suitable sites for attachment of markers and drug molecules for vascular imaging and tumor targeting. In this review a brief description of plant virus nanoparticles and their biomedical applications especially in drug delivery is provided. The methods of loading cargos in these VNPs and their final biofate are also reviewed.
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Affiliation(s)
- Effat Alemzadeh
- Plant Virology Research Center, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Ali Dehshahri
- Research Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Keramatolah Izadpanah
- Plant Virology Research Center, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Fatemeh Ahmadi
- Research Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, Iran.
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20
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Shukla S, Myers JT, Woods SE, Gong X, Czapar AE, Commandeur U, Huang AY, Levine AD, Steinmetz NF. Plant viral nanoparticles-based HER2 vaccine: Immune response influenced by differential transport, localization and cellular interactions of particulate carriers. Biomaterials 2016; 121:15-27. [PMID: 28063980 DOI: 10.1016/j.biomaterials.2016.12.030] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 12/18/2016] [Accepted: 12/27/2016] [Indexed: 12/13/2022]
Abstract
Cancer vaccines are designed to elicit an endogenous adaptive immune response that can successfully recognize and eliminate residual or recurring tumors. Such approaches can potentially overcome shortcomings of passive immunotherapies by generating long-lived therapeutic effects and immune memory while limiting systemic toxicities. A critical determinant of vaccine efficacy is efficient transport and delivery of tumor-associated antigens to professional antigen presenting cells (APCs). Plant viral nanoparticles (VNPs) with natural tropism for APCs and a high payload carrying capacity may be particularly effective vaccine carriers. The applicability of VNP platform technologies is governed by stringent structure-function relationships. We compare two distinct VNP platforms: icosahedral cowpea mosaic virus (CPMV) and filamentous potato virus X (PVX). Specifically, we evaluate in vivo capabilities of engineered VNPs delivering human epidermal growth factor receptor 2 (HER2) epitopes for therapy and prophylaxis of HER2+ malignancies. Our results corroborate the structure-function relationship where icosahedral CPMV particles showed significantly enhanced lymph node transport and retention, and greater uptake by/activation of APCs compared to filamentous PVX particles. These enhanced immune cell interactions and transport properties resulted in elevated HER2-specific antibody titers raised by CPMV- vs. PVX-based peptide vaccine. The 'synthetic virology' field is rapidly expanding with numerous platforms undergoing development and preclinical testing; our studies highlight the need for systematic studies to define rules guiding the design and rational choice of platform, in the context of peptide-vaccine display technologies.
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Affiliation(s)
- Sourabh Shukla
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA; Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA.
| | - Jay T Myers
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Sarah E Woods
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Xingjian Gong
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Anna E Czapar
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Ulrich Commandeur
- Department of Molecular Biotechnology, RWTH-Aachen University, 52064 Aachen, Germany
| | - Alex Y Huang
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA; Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Alan D Levine
- Molecular Biology and Microbiology, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Nicole F Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA; Department of Radiology, Case Western Reserve University, Cleveland, OH 44106, USA; Department of Materials Science and Engineering, Case Western Reserve University, Cleveland, OH 44106, USA; Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106, USA; Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA; Division of General Medical Sciences-Oncology, Case Western Reserve University, Cleveland, OH 44106, USA.
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21
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Lico C, Giardullo P, Mancuso M, Benvenuto E, Santi L, Baschieri S. A biodistribution study of two differently shaped plant virus nanoparticles reveals new peculiar traits. Colloids Surf B Biointerfaces 2016; 148:431-439. [PMID: 27648774 DOI: 10.1016/j.colsurfb.2016.09.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 09/12/2016] [Accepted: 09/14/2016] [Indexed: 11/20/2022]
Abstract
Self-assembling plant virus nanoparticles (pVNPs) have started to be explored as nanometre-sized objects for biomedical applications, such as vaccine or drug delivery and imaging. Plant VNPs may be ideal tools in terms of biocompatibility and biodegradability endowed with a wide diversity of symmetries and dimensions, easy chemical/biological engineering, and rapid production in plants. Recently, we defined that icosahedral Tomato bushy stunt virus (TBSV) and filamentous Potato virus X (PVX) are neither toxic nor teratogenic. We report here the results of an interdisciplinary study aimed to define for the first time the biodistribution of unlabelled, unpegylated, underivatized TBSV and PVX by proved detecting antibodies. These data add new insights on the in vivo behaviour of these nano-objects and demonstrate that the pVNPs under scrutiny are each intrinsically endowed with peculiar properties foreshadowing different applications in molecular medicine.
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Affiliation(s)
- Chiara Lico
- Laboratory of Biotechnology, Agenzia Nazionale per le Nuove Tecnologie, l'Energia e lo Sviluppo Economico Sostenibile (ENEA), Rome, Italy
| | - Paola Giardullo
- Department of Radiation Physics, Guglielmo Marconi University, Rome, Italy; Department of Sciences, University of Roma Tre, Rome, Italy
| | - Mariateresa Mancuso
- Laboratory of Biomedical technologies, Agenzia Nazionale per le Nuove Tecnologie, l'Energia e lo Sviluppo Economico Sostenibile (ENEA), Rome, Italy
| | - Eugenio Benvenuto
- Laboratory of Biotechnology, Agenzia Nazionale per le Nuove Tecnologie, l'Energia e lo Sviluppo Economico Sostenibile (ENEA), Rome, Italy
| | - Luca Santi
- Department of Agricultural and Forestry Sciences (DAFNE), University of Tuscia, Viterbo, Italy
| | - Selene Baschieri
- Laboratory of Biotechnology, Agenzia Nazionale per le Nuove Tecnologie, l'Energia e lo Sviluppo Economico Sostenibile (ENEA), Rome, Italy.
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22
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Nikitin NA, Trifonova EA, Karpova OV, Atabekov JG. Biosafety of plant viruses for human and animals. ACTA ACUST UNITED AC 2016. [DOI: 10.3103/s0096392516030081] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Lee KL, Twyman RM, Fiering S, Steinmetz N. Virus-based nanoparticles as platform technologies for modern vaccines. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2016; 8:554-78. [PMID: 26782096 PMCID: PMC5638654 DOI: 10.1002/wnan.1383] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 11/11/2015] [Indexed: 12/25/2022]
Abstract
Nanoscale engineering is revolutionizing the development of vaccines and immunotherapies. Viruses have played a key role in this field because they can function as prefabricated nanoscaffolds with unique properties that are easy to modify. Viruses are immunogenic via multiple pathways, and antigens displayed naturally or by engineering on the surface can be used to create vaccines against the cognate virus, other pathogens, specific molecules or cellular targets such as tumors. This review focuses on the development of virus-based nanoparticle systems as vaccines indicated for the prevention or treatment of infectious diseases, chronic diseases, cancer, and addiction. WIREs Nanomed Nanobiotechnol 2016, 8:554-578. doi: 10.1002/wnan.1383 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
- Karin L. Lee
- Department of Biomedical Engineering, Case Western Reserve University Schools of Engineering and Medicine, Cleveland, OH 44106
| | | | - Steven Fiering
- Department of Microbiology and Immunology and Norris Cotton Cancer Center, The Geisel School of Medicine at Dartmouth, Lebanon, NH 03756
| | - Nicole Steinmetz
- Departments of Biomedical Engineering, Radiology, Materials Science and Engineering, and Macromolecular Science and Engineering, Case Western Reserve University and Medicine, Cleveland, OH 44106;
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24
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Shukla S, Dorand RD, Myers JT, Woods SE, Gulati NM, Stewart PL, Commandeur U, Huang AY, Steinmetz NF. Multiple Administrations of Viral Nanoparticles Alter in Vivo Behavior-Insights from Intravital Microscopy. ACS Biomater Sci Eng 2016; 2:829-837. [PMID: 28752131 PMCID: PMC5526635 DOI: 10.1021/acsbiomaterials.6b00060] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Multiple administrations of nanoparticle-based formulations are often a clinical requirement for drug delivery and diagnostic imaging applications. Steady pharmacokinetics of nanoparticles is desirable to achieve efficient therapeutic or diagnostic outcomes over such repeat administrations. While clearance through mononuclear phagocytic system is a key determinant of nanoparticle persistence in vivo, multiple administrations could potentially result in altered pharmacokinetics by evoking innate or adaptive immune responses. Plant viral nanoparticles (VNPs) represent an emerging class of programmable nanoparticle platform technologies that offer a highly organized proteinaceous architecture and multivalency for delivery of large payloads of drugs and molecular contrast agents. These very structural features also render them susceptible to immune recognition and subsequent accelerated systemic clearance that could potentially affect overall efficiency. While the biodistribution and pharmacokinetics of VNPs have been reported, the biological response following repeat administrations remains an understudied area of investigation. Here, we demonstrate that weekly administration of filamentous plant viruses results in the generation of increasing levels of circulating, carrier-specific IgM and IgG antibodies. Furthermore, PVX specific immunoglobulins from the serum of immunized animals quickly form aggregates when incubated with PVX in vitro. Such aggregates of VNP-immune complexes are also observed in the mouse vasculature in vivo following repeat injections when imaged in real time using intravital two-photon laser scanning microscopy (2P-LSM). The size of aggregates diminishes at later time points, coinciding with antibody class switching from IgM to IgG. Together, our results highlight the need for careful in vivo assessment of (viral) nanoparticle-based platform technologies, especially in studying their performance after repeat administration. We also demonstrate the utility of intravital microscopy to aid in this evaluation.
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Affiliation(s)
- Sourabh Shukla
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
- Department of Case Comprehensive Cancer Center, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - R Dixon Dorand
- Department of Pathology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Jay T Myers
- Department of Pediatrics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Sarah E Woods
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Neetu M Gulati
- Department of Pharmacology, and Cleveland Center for Membrane and Structural Biology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Phoebe L Stewart
- Department of Pharmacology, and Cleveland Center for Membrane and Structural Biology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Ulrich Commandeur
- Institute for Molecular Biotechnology, RWTH Aachen University, Worringer Weg 1, 52074 Aachen, Germany
| | - Alex Y Huang
- Department of Case Comprehensive Cancer Center, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
- Department of Pathology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
- Department of Pediatrics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Nicole F Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
- Department of Case Comprehensive Cancer Center, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
- Department of Radiology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
- Department of Macromolecular Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
- Department of Materials Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
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25
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Shirbaghaee Z, Bolhassani A. Different applications of virus-like particles in biology and medicine: Vaccination and delivery systems. Biopolymers 2016; 105:113-32. [PMID: 26509554 PMCID: PMC7161881 DOI: 10.1002/bip.22759] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 10/25/2015] [Accepted: 10/25/2015] [Indexed: 12/17/2022]
Abstract
Virus-like particles (VLPs) mimic the whole construct of virus particles devoid of viral genome as used in subunit vaccine design. VLPs can elicit efficient protective immunity as direct immunogens compared to soluble antigens co-administered with adjuvants in several booster injections. Up to now, several prokaryotic and eukaryotic systems such as insect, yeast, plant, and E. coli were used to express recombinant proteins, especially for VLP production. Recent studies are also generating VLPs in plants using different transient expression vectors for edible vaccines. VLPs and viral particles have been applied for different functions such as gene therapy, vaccination, nanotechnology, and diagnostics. Herein, we describe VLP production in different systems as well as its applications in biology and medicine.
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Affiliation(s)
- Zeinab Shirbaghaee
- Department of Hepatitis and AIDSPasteur Institute of IranTehranIran
- Department of Immunology, School of Public HealthTehran University of Medical SciencesTehranIran
| | - Azam Bolhassani
- Department of Hepatitis and AIDSPasteur Institute of IranTehranIran
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26
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Atabekov JG, Nikitin NA, Karpova OV. New type platforms for in vitro vaccine assembly. ACTA ACUST UNITED AC 2016. [DOI: 10.3103/s0096392515040045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Tinazzi E, Merlin M, Bason C, Beri R, Zampieri R, Lico C, Bartoloni E, Puccetti A, Lunardi C, Pezzotti M, Avesani L. Plant-Derived Chimeric Virus Particles for the Diagnosis of Primary Sjögren Syndrome. FRONTIERS IN PLANT SCIENCE 2015; 6:1080. [PMID: 26648961 PMCID: PMC4664701 DOI: 10.3389/fpls.2015.01080] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 11/18/2015] [Indexed: 05/23/2023]
Abstract
Plants are ideal for the production of protein-based nanomaterials because they synthesize and assemble complex multimeric proteins that cannot be expressed efficiently using other platforms. Plant viruses can be thought of as self-replicating proteinaceous nanomaterials generally stable and easily produced in high titers. We used Potato virus X (PVX), chimeric virus particles, and Cowpea mosaic virus, empty virus-like particles to display a linear peptide (lipo) derived from human lipocalin, which is immunodominant in Sjögren's syndrome (SjS) and is thus recognized by autoantibodies in SjS patient serum. These virus-derived nanoparticles were thus used to develop a diagnostic assay for SjS based on a direct enzyme linked immunosorbent assay format. We found that PVX-lipo formulations were more sensitive than the chemically synthesized immunodominant peptide and equally specific when used to distinguish between healthy individuals and SjS patients. Our novel assay therefore allows the diagnosis of SjS using a simple, low-invasive serum test, contrasting with the invasive labial biopsy required for current tests. Our results demonstrate that nanomaterials based on plant viruses can be used as diagnostic reagents for SjS, and could also be developed for the diagnosis of other diseases.
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Affiliation(s)
- Elisa Tinazzi
- Department of Medicine, University of VeronaVerona, Italy
| | - Matilde Merlin
- Department of Biotechnology, University of VeronaVerona, Italy
| | - Caterina Bason
- Department of Medicine, University of VeronaVerona, Italy
| | - Ruggero Beri
- Department of Medicine, University of VeronaVerona, Italy
| | | | - Chiara Lico
- UTBIORAD-FARM, Laboratory of Biotechnology, ENEARome, Italy
| | - Elena Bartoloni
- Rheumatology Unit, Department of Medicine, University of PerugiaPerugia, Italy
| | | | | | - Mario Pezzotti
- Department of Biotechnology, University of VeronaVerona, Italy
| | - Linda Avesani
- Department of Biotechnology, University of VeronaVerona, Italy
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Dickmeis C, Honickel MMA, Fischer R, Commandeur U. Production of Hybrid Chimeric PVX Particles Using a Combination of TMV and PVX-Based Expression Vectors. Front Bioeng Biotechnol 2015; 3:189. [PMID: 26636076 PMCID: PMC4653303 DOI: 10.3389/fbioe.2015.00189] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 11/04/2015] [Indexed: 12/30/2022] Open
Abstract
We have generated hybrid chimeric potato virus X (PVX) particles by coexpression of different PVX coat protein fusions utilizing tobacco mosaic virus (TMV) and PVX-based expression vectors. Coinfection was achieved with a modified PVX overcoat vector displaying a fluorescent protein and a TMV vector expressing another PVX fluorescent overcoat fusion protein. Coexpression of the PVX-CP fusions in the same cells was confirmed by epifluorescence microscopy. Labeling with specific antibodies and transmission electron microscopy revealed chimeric particles displaying green fluorescent protein and mCherry on the surface. These data were corroborated by bimolecular fluorescence complementation. We used split-mCherry fragments as PVX coat fusions and confirmed an interaction between the split-mCherry fragments in coinfected cells. The presence of assembled split-mCherry on the surface confirmed the hybrid character of the chimeric particles.
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Affiliation(s)
- Christina Dickmeis
- Institute for Molecular Biotechnology, RWTH Aachen University , Aachen , Germany
| | | | - Rainer Fischer
- Institute for Molecular Biotechnology, RWTH Aachen University , Aachen , Germany ; Fraunhofer Institute for Molecular Biology and Applied Ecology , Aachen , Germany
| | - Ulrich Commandeur
- Institute for Molecular Biotechnology, RWTH Aachen University , Aachen , Germany
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Lico C, Benvenuto E, Baschieri S. The Two-Faced Potato Virus X: From Plant Pathogen to Smart Nanoparticle. FRONTIERS IN PLANT SCIENCE 2015; 6:1009. [PMID: 26635836 PMCID: PMC4646960 DOI: 10.3389/fpls.2015.01009] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 10/30/2015] [Indexed: 05/24/2023]
Abstract
Potato virus X (PVX) is a single-stranded RNA plant virus, historically investigated in light of the detrimental effects on potato, the world's fourth most important food commodity. The study of the interactions with cells, and more generally with the plant, both locally and systemically, significantly contributed to unveil the mechanisms underlying gene silencing, fundamental not only in plant virology but also in the study of gene expression regulation. Unraveling the molecular events of PVX infection paved the way for the development of different viral expression vectors and consequential applications in functional genomics and in the biosynthesis of heterologous proteins in plants. Apart from that, the ease of manipulation and the knowledge of the virus structure (particle dimensions, shape and physicochemical features) are inspiring novel applications, mainly focused on nanobiotechnology. This review will lead the reader in this area, spanning from fundamental to applied research, embracing fields from plant pathology to vaccine and drug-targeted delivery, imaging and material sciences. Due to the versatile moods, PVX holds promise to become an interesting nanomaterial, in view to create the widest possible arsenal of new "bio-inspired" devices to face evolving issues in biomedicine and beyond.
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Affiliation(s)
- Chiara Lico
- Laboratory of Biotechnology , ENEA, Rome, Italy
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Uhde‐Holzem K, McBurney M, Tiu BDB, Advincula RC, Fischer R, Commandeur U, Steinmetz NF. Production of Immunoabsorbent Nanoparticles by Displaying Single‐Domain Protein A on Potato Virus X. Macromol Biosci 2015; 16:231-41. [DOI: 10.1002/mabi.201500280] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Revised: 08/30/2015] [Indexed: 01/25/2023]
Affiliation(s)
- Kerstin Uhde‐Holzem
- Institute for Molecular BiotechnologyRWTH Aachen University, Worringer Weg 152074 AachenGermany
| | - Michael McBurney
- Department of Biomedical EngineeringCase Western Reserve University Schools of Medicine and EngineeringClevelandOhio 44106USA
| | - Brylee David B. Tiu
- Department of Macromolecular Science and EngineeringCase Western Reserve University Schools of Medicine and EngineeringClevelandOhio 44106USA
| | - Rigoberto C. Advincula
- Department of Macromolecular Science and EngineeringCase Western Reserve University Schools of Medicine and EngineeringClevelandOhio 44106USA
| | - Rainer Fischer
- Fraunhofer Institute for Molecular Biology and Applied Ecology IMEForckenbeckstraße 652074AachenGermany
| | - Ulrich Commandeur
- Institute for Molecular BiotechnologyRWTH Aachen University, Worringer Weg 152074 AachenGermany
| | - Nicole F. Steinmetz
- Department of Biomedical EngineeringCase Western Reserve University Schools of Medicine and EngineeringClevelandOhio 44106USA
- Department of Macromolecular Science and EngineeringCase Western Reserve University Schools of Medicine and EngineeringClevelandOhio 44106USA
- Department of RadiologyCase Western Reserve University Schools of Medicine and EngineeringClevelandOhio 44106USA
- Department of Materials Science and EngineeringCase Western Reserve University Schools of Medicine and EngineeringClevelandOhio 44106USA
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Streatfield SJ, Kushnir N, Yusibov V. Plant-produced candidate countermeasures against emerging and reemerging infections and bioterror agents. PLANT BIOTECHNOLOGY JOURNAL 2015; 13:1136-59. [PMID: 26387510 PMCID: PMC7167919 DOI: 10.1111/pbi.12475] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 08/06/2015] [Accepted: 08/19/2015] [Indexed: 05/20/2023]
Abstract
Despite progress in the prevention and treatment of infectious diseases, they continue to present a major threat to public health. The frequency of emerging and reemerging infections and the risk of bioterrorism warrant significant efforts towards the development of prophylactic and therapeutic countermeasures. Vaccines are the mainstay of infectious disease prophylaxis. Traditional vaccines, however, are failing to satisfy the global demand because of limited scalability of production systems, long production timelines and product safety concerns. Subunit vaccines are a highly promising alternative to traditional vaccines. Subunit vaccines, as well as monoclonal antibodies and other therapeutic proteins, can be produced in heterologous expression systems based on bacteria, yeast, insect cells or mammalian cells, in shorter times and at higher quantities, and are efficacious and safe. However, current recombinant systems have certain limitations associated with production capacity and cost. Plants are emerging as a promising platform for recombinant protein production due to time and cost efficiency, scalability, lack of harboured mammalian pathogens and possession of the machinery for eukaryotic post-translational protein modification. So far, a variety of subunit vaccines, monoclonal antibodies and therapeutic proteins (antivirals) have been produced in plants as candidate countermeasures against emerging, reemerging and bioterrorism-related infections. Many of these have been extensively evaluated in animal models and some have shown safety and immunogenicity in clinical trials. Here, we overview ongoing efforts to producing such plant-based countermeasures.
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Affiliation(s)
| | - Natasha Kushnir
- Fraunhofer USA Center for Molecular Biotechnology, Newark, DE, USA
| | - Vidadi Yusibov
- Fraunhofer USA Center for Molecular Biotechnology, Newark, DE, USA
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Plant Viruses as Nanoparticle-Based Vaccines and Adjuvants. Vaccines (Basel) 2015; 3:620-37. [PMID: 26350598 PMCID: PMC4586470 DOI: 10.3390/vaccines3030620] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 07/22/2015] [Accepted: 07/29/2015] [Indexed: 12/11/2022] Open
Abstract
Vaccines are considered one of the greatest medical achievements in the battle against infectious diseases. However, the intractability of various diseases such as hepatitis C, HIV/AIDS, malaria, tuberculosis, and cancer poses persistent hurdles given that traditional vaccine-development methods have proven to be ineffective; as such, these challenges have driven the emergence of novel vaccine design approaches. In this regard, much effort has been put into the development of new safe adjuvants and vaccine platforms. Of particular interest, the utilization of plant virus-like nanoparticles and recombinant plant viruses has gained increasing significance as an effective tool in the development of novel vaccines against infectious diseases and cancer. The present review summarizes recent advances in the use of plant viruses as nanoparticle-based vaccines and adjuvants and their mechanism of action. Harnessing plant-virus immunogenic properties will enable the design of novel, safe, and efficacious prophylactic and therapeutic vaccines against disease.
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Blandino A, Lico C, Baschieri S, Barberini L, Cirotto C, Blasi P, Santi L. In vitro and in vivo toxicity evaluation of plant virus nanocarriers. Colloids Surf B Biointerfaces 2015; 129:130-6. [PMID: 25847457 DOI: 10.1016/j.colsurfb.2015.03.039] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 03/15/2015] [Accepted: 03/16/2015] [Indexed: 10/23/2022]
Abstract
The use of biological self-assembling materials, plant virus nanoparticles in particular, appears very intriguing as it allows a great choice of symmetries and dimensions, easy chemical and biological engineering of both surface and/or internal cavity as well as safe and rapid production in plants. In this perspective, we present an initial evaluation of the safety profile of two structurally different plant viruses produced in Nicotiana benthamiana L. plants: the filamentous Potato virus X and the icosahedral Tomato bushy stunt virus. In vitro haemolysis assay was used to test the cytotoxic effects, which could arise by pVNPs interaction with cellular membranes, while early embryo assay was used to evaluate toxicity and teratogenicity in vivo. Data indicates that these structurally robust particles, still able to infect plants after incubation in serum up to 24h, have neither toxic nor teratogenic effects in vitro and in vivo. This work represents the first safety-focused characterization of pVNPs in view of their possible use as drug delivery carriers.
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Affiliation(s)
- Agnese Blandino
- Department of Pharmaceutical Sciences, University of Perugia, via del Liceo 1, 06123 Perugia, Italy
| | - Chiara Lico
- Laboratory of Biotechnology, Technical Unit Radiation Biology and Human Health, ENEA Casaccia Research Center, Via Anguillarese 301, 00123 S. Maria di Galeria, Rome, Italy
| | - Selene Baschieri
- Laboratory of Biotechnology, Technical Unit Radiation Biology and Human Health, ENEA Casaccia Research Center, Via Anguillarese 301, 00123 S. Maria di Galeria, Rome, Italy
| | - Lanfranco Barberini
- Department of Chemistry, Biology, and Biotechnology, University of Perugia, via elce di sotto, 06123 Perugia, Italy
| | - Carlo Cirotto
- Department of Chemistry, Biology, and Biotechnology, University of Perugia, via elce di sotto, 06123 Perugia, Italy
| | - Paolo Blasi
- School of Pharmacy, University of Camerino, Via Sant'Agostino 1, 62032 Camerino, Italy.
| | - Luca Santi
- Department of Agriculture, Forests, Nature and Energy (DAFNE), University of Tuscia, Via San Camillo de Lellis snc, 01100 Viterbo, Italy
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Yusibov V, Kushnir N, Streatfield SJ. Advances and challenges in the development and production of effective plant-based influenza vaccines. Expert Rev Vaccines 2014; 14:519-35. [PMID: 25487788 DOI: 10.1586/14760584.2015.989988] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Influenza infections continue to present a major threat to public health. Traditional modes of influenza vaccine manufacturing are failing to satisfy the global demand because of limited scalability and long production timelines. In contrast, subunit vaccines (SUVs) can be produced in heterologous expression systems in shorter times and at higher quantities. Plants are emerging as a promising platform for SUV production due to time efficiency, scalability, lack of harbored mammalian pathogens and possession of the machinery for eukaryotic post-translational protein modifications. So far, several organizations have utilized plant-based transient expression systems to produce SUVs against influenza, including vaccines based on virus-like particles. Plant-produced influenza SUV candidates have been extensively evaluated in animal models and some have shown safety and immunogenicity in clinical trials. Here, the authors review ongoing efforts and challenges to producing influenza SUV candidates in plants and discuss the likelihood of bringing these products to the market.
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Affiliation(s)
- Vidadi Yusibov
- Fraunhofer USA Center for Molecular Biotechnology, 9 Innovation Way, Suite 200, Newark, DE 19711, USA
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35
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Shukla S, Wen AM, Commandeur U, Steinmetz NF. Presentation of HER2 epitopes using a filamentous plant virus-based vaccination platform. J Mater Chem B 2014; 2:6249-6258. [DOI: 10.1039/c4tb00749b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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36
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Shukla S, Wen AM, Ayat NR, Commandeur U, Gopalkrishnan R, Broome AM, Lozada KW, Keri RA, Steinmetz NF. Biodistribution and clearance of a filamentous plant virus in healthy and tumor-bearing mice. Nanomedicine (Lond) 2014. [DOI: 10.2217/nnm.13.75] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Aim: Nanoparticles based on plant viruses are emerging biomaterials for medical applications such as drug delivery and imaging. Their regular structures can undergo genetic and chemical modifications to carry large payloads of cargos, as well as targeting ligands. Of several such platforms under development, only few have been characterized in vivo. We recently introduced the filamentous plant virus, potato virus X (PVX), as a new platform. PVX presents with a unique nanoarchitecture and is difficult to synthesize chemically. Methods: Here, we present a detailed analysis of PVX biodistribution and clearance in healthy mice and mouse tumor xenograft models using a combination of ex vivo whole-organ imaging, quantitative fluorescence assays and immunofluorescence microscopy. Results & conclusion: While up to 30% of the PVX signal was from the colon, mammary and brain tumor tissues, remaining particles were cleared by the reticuloendothelial system organs (the spleen and liver), followed by slower processing and clearance through the kidneys and bile. Original submitted 7 November 2012; Revised submitted 19 January 2013; Published online 9 July 2013
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Affiliation(s)
- Sourabh Shukla
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Amy M Wen
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Nadia R Ayat
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Ulrich Commandeur
- Institute for Molecular Biotechnology, RWTH Aachen University, Worringer Weg 1, 52074 Aachen, Germany
| | - Ramamurthy Gopalkrishnan
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Ann-Marie Broome
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, Current address: Center for Biomedical Imaging, Department of Radiology & Radiological Sciences, Medical University of South Carolina, 68 President Street, Charleston, SC 29425, USA
| | - Kristen W Lozada
- Department of Pharmacology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Ruth A Keri
- Department of Pharmacology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA and Department of Genetics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA and Division of General Medical Sciences-Oncology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Nicole F Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA and Department of Radiology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA and Department of Materials Science & Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
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37
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Paul M, Ma JKC. Plant-made immunogens and effective delivery strategies. Expert Rev Vaccines 2014; 9:821-33. [DOI: 10.1586/erv.10.88] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Grasso S, Lico C, Imperatori F, Santi L. A plant derived multifunctional tool for nanobiotechnology based on Tomato bushy stunt virus. Transgenic Res 2013; 22:519-35. [PMID: 23108557 DOI: 10.1007/s11248-012-9663-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Accepted: 09/24/2012] [Indexed: 10/27/2022]
Abstract
Structure, size, physicochemical properties and production strategies make many plant viruses ideal protein based nanoscaffolds, nanocontainers and nano-building blocks expected to deliver a multitude of applications in different fields such as biomedicine, pharmaceutical chemistry, separation science, catalytic chemistry, crop pest control and biomaterials science. Functionalization of viral nanoparticles through modification by design of their external and internal surfaces is essential to fully exploit the potentiality of these objects. In the present paper we describe the development of a plant derived multifunctional tool for nanobiotechnology based on Tomato bushy stunt virus. We demonstrate the ability of this system to remarkably sustain genetic modifications and in vitro chemical derivatizations of its outer surface, which resulted in the successful display of large chimeric peptides fusions and small chemical molecules, respectively. Moreover, we have defined physicochemical conditions for viral swelling and reversible viral pore gating that we have successfully employed for foreign molecules loading and retention in the inner cavity of this plant virus nanoparticles system. Finally, a production and purification strategy from Nicotiana benthamiana plants has been addressed and optimized.
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Affiliation(s)
- Simone Grasso
- University Campus Bio-Medico, Via Alvaro del Portillo 21, 00128 Rome, Italy
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Babin C, Majeau N, Leclerc D. Engineering of papaya mosaic virus (PapMV) nanoparticles with a CTL epitope derived from influenza NP. J Nanobiotechnology 2013; 11:10. [PMID: 23556511 PMCID: PMC3621093 DOI: 10.1186/1477-3155-11-10] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Accepted: 03/25/2013] [Indexed: 11/29/2022] Open
Abstract
Background The ever-present threat of infectious disease, e.g. influenza pandemics, and the increasing need for new and effective treatments in immunotherapy are the driving forces that motivate research into new and innovative vaccine platforms. Ideally, such platforms should trigger an efficient CTL response, be safe, and easy to manufacture. We recently developed a novel nanoparticle adjuvant comprised of papaya mosaic virus (PapMV) coat protein (CP) assembled around an RNA. The PapMV nanoparticle is an efficient vaccine platform in which the peptide antigen is fused to the C-terminus of the PapMV CP, leading to nanoparticles presenting surface-exposed epitope. The fusion stabilizes the epitope and improves its immunogenicity. We found recently that C-terminal fusions are not always efficient, depending on the nature of the peptide fused to the platform. Results We chose a CTL epitope derived from the nucleocapsid (NP) of influenza virus (NP147-155) for this proof-of-concept demonstration. Recombinant nanoparticles harbouring a fusion at the N-terminus were more efficient in triggering a CTL response. Efficacy appeared to be linked to the stability of the nanoparticles at 37°C. We also showed that discs—smaller than nanoparticles—made of 20 subunits of PapMV CP are less efficient for induction of a CTL response in mice, revealing that assembly of the recombinant PapMV CP into nanoparticles is crucial to triggering an efficient CTL response. Conclusion The point of fusion on the PapMV vaccine platform is critical to triggering an efficient CTL response. Efficacy is linked to nanoparticle stability; nanoparticles must be stable at 37°C but remain susceptible to cellular proteases to ensure efficient processing of the CTL epitope by cells of the immune system. The results of this study improve our understanding of the PapMV vaccine platform, which will facilitate the design of efficient vaccines to various infectious threats.
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Affiliation(s)
- Cindy Babin
- Department of Microbiology, Infectiology and Immunology, Infectious Disease Research Center, Laval University, 2705 boul. Laurier, Quebec city, PQ G1V 4G2, Canada
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Pushko P, Pumpens P, Grens E. Development of Virus-Like Particle Technology from Small Highly Symmetric to Large Complex Virus-Like Particle Structures. Intervirology 2013; 56:141-65. [DOI: 10.1159/000346773] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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41
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Chen Q, Lai H. Plant-derived virus-like particles as vaccines. Hum Vaccin Immunother 2013; 9:26-49. [PMID: 22995837 PMCID: PMC3667944 DOI: 10.4161/hv.22218] [Citation(s) in RCA: 105] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Revised: 09/06/2012] [Accepted: 09/13/2012] [Indexed: 02/07/2023] Open
Abstract
Virus-like particles (VLPs) are self-assembled structures derived from viral antigens that mimic the native architecture of viruses but lack the viral genome. VLPs have emerged as a premier vaccine platform due to their advantages in safety, immunogenicity, and manufacturing. The particulate nature and high-density presentation of viral structure proteins on their surface also render VLPs as attractive carriers for displaying foreign epitopes. Consequently, several VLP-based vaccines have been licensed for human use and achieved significant clinical and economical success. The major challenge, however, is to develop novel production platforms that can deliver VLP-based vaccines while significantly reducing production times and costs. Therefore, this review focuses on the essential role of plants as a novel, speedy and economical production platform for VLP-based vaccines. The advantages of plant expression systems are discussed in light of their distinctive posttranslational modifications, cost-effectiveness, production speed, and scalability. Recent achievements in the expression and assembly of VLPs and their chimeric derivatives in plant systems as well as their immunogenicity in animal models are presented. Results of human clinical trials demonstrating the safety and efficacy of plant-derived VLPs are also detailed. Moreover, the promising implications of the recent creation of "humanized" glycosylation plant lines as well as the very recent approval of the first plant-made biologics by the U. S. Food and Drug Administration (FDA) for plant production and commercialization of VLP-based vaccines are discussed. It is speculated that the combined potential of plant expression systems and VLP technology will lead to the emergence of successful vaccines and novel applications of VLPs in the near future.
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Affiliation(s)
- Qiang Chen
- Center for Infectious Diseases and Vaccinology, Biodesign Institute at Arizona State University, Tempe, AZ USA.
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42
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Kushnir N, Streatfield SJ, Yusibov V. Virus-like particles as a highly efficient vaccine platform: diversity of targets and production systems and advances in clinical development. Vaccine 2012; 31:58-83. [PMID: 23142589 PMCID: PMC7115575 DOI: 10.1016/j.vaccine.2012.10.083] [Citation(s) in RCA: 401] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 10/13/2012] [Accepted: 10/25/2012] [Indexed: 12/16/2022]
Abstract
Virus-like particles (VLPs) are a class of subunit vaccines that differentiate themselves from soluble recombinant antigens by stronger protective immunogenicity associated with the VLP structure. Like parental viruses, VLPs can be either non-enveloped or enveloped, and they can form following expression of one or several viral structural proteins in a recombinant heterologous system. Depending on the complexity of the VLP, it can be produced in either a prokaryotic or eukaryotic expression system using target-encoding recombinant vectors, or in some cases can be assembled in cell-free conditions. To date, a wide variety of VLP-based candidate vaccines targeting various viral, bacterial, parasitic and fungal pathogens, as well as non-infectious diseases, have been produced in different expression systems. Some VLPs have entered clinical development and a few have been licensed and commercialized. This article reviews VLP-based vaccines produced in different systems, their immunogenicity in animal models and their status in clinical development.
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Affiliation(s)
- Natasha Kushnir
- Fraunhofer USA Center for Molecular Biotechnology, Newark, DE 19711, USA
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43
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44
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Buriani G, Mancini C, Benvenuto E, Baschieri S. Heat-shock protein 70 from plant biofactories of recombinant antigens activate multiepitope-targeted immune responses. PLANT BIOTECHNOLOGY JOURNAL 2012; 10:363-71. [PMID: 22221920 DOI: 10.1111/j.1467-7652.2011.00673.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Although a physiological role of heat-shock proteins (HSP) in antigen presentation and immune response activation has not been directly demonstrated, their use as vaccine components is under clinical trial. We have previously demonstrated that the structure of plant-derived HSP70 (pHSP70) can be superimposed to the mammalian homologue and similarly to the mammalian counterpart, pHSP70-polypeptide complexes can activate the immune system. It is here shown that pHSP70 purified from plant tissues transiently expressing the influenza virus nucleoprotein are able to induce both the activation of major histocompatibility complex class I-restricted polyclonal T-cell responses and antibody production in mice of different haplotypes without the need of adjuvant co-delivery. These results indicate that pHSP70 derived from plants producing recombinant antigens may be used to formulate multiepitope vaccines.
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Affiliation(s)
- Giampaolo Buriani
- Laboratorio Biotecnologie Unità Tecnica BIORAD, ENEA C.R. Casaccia, Roma, Italy
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Lico C, Santi L, Twyman RM, Pezzotti M, Avesani L. The use of plants for the production of therapeutic human peptides. PLANT CELL REPORTS 2012; 31:439-51. [PMID: 22218674 DOI: 10.1007/s00299-011-1215-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 12/13/2011] [Accepted: 12/13/2011] [Indexed: 05/17/2023]
Abstract
Peptides have unique properties that make them useful drug candidates for diverse indications, including allergy, infectious disease and cancer. Some peptides are intrinsically bioactive, while others can be used to induce precise immune responses by defining a minimal immunogenic region. The limitations of peptides, such as metabolic instability, short half-life and low immunogenicity, can be addressed by strategies such as multimerization or fusion to carriers, to improve their pharmacological properties. The remaining major drawback is the cost of production using conventional chemical synthesis, which is also difficult to scale-up. Over the last 15 years, plants have been shown to produce bioactive and immunogenic peptides economically and with the potential for large-scale synthesis. The production of peptides in plants is usually achieved by the genetic fusion of the corresponding nucleotide sequence to that of a carrier protein, followed by stable nuclear or plastid transformation or transient expression using bacterial or viral vectors. Chimeric plant viruses or virus-like particles can also be used to display peptide antigens, allowing the production of polyvalent vaccine candidates. Here we review progress in the field of plant-derived peptides over the last 5 years, addressing new challenges for diverse pathologies.
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Affiliation(s)
- Chiara Lico
- Laboratorio di Biotecnologie, Unità Tecnica BIORAD, ENEA CR Casaccia, 00123 Rome, Italy
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Betti C, Lico C, Maffi D, D'Angeli S, Altamura MM, Benvenuto E, Faoro F, Baschieri S. Potato virus X movement in Nicotiana benthamiana: new details revealed by chimeric coat protein variants. MOLECULAR PLANT PATHOLOGY 2012; 13:198-203. [PMID: 21851552 PMCID: PMC6638808 DOI: 10.1111/j.1364-3703.2011.00739.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Potato virus X coat protein is necessary for both cell-to-cell and phloem transfer, but it has not been clarified definitively whether it is needed in both movement phases solely as a component of the assembled particles or also of differently structured ribonucleoprotein complexes. To clarify this issue, we studied the infection progression of a mutant carrying an N-terminal deletion of the coat protein, which was used to construct chimeric virus particles displaying peptides selectively affecting phloem transfer or cell-to-cell movement. Nicotiana benthamiana plants inoculated with expression vectors encoding the wild-type, mutant and chimeric viral genomes were examined by microscopy techniques. These experiments showed that coat protein-peptide fusions promoting cell-to-cell transfer only were not competent for virion assembly, whereas long-distance movement was possible only for coat proteins compatible with virus particle formation. Moreover, the ability of the assembled PVX to enter and persist into developing xylem elements was revealed here for the first time.
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Affiliation(s)
- Camilla Betti
- Unità Tecnica Biologia delle Radiazioni e Salute dell'Uomo, Laboratorio di Biotecnologie, ENEA CR Casaccia, Via Anguillarese 301, 00123, Rome, Italy
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Abstract
The capsids of most plant viruses are simple and robust structures consisting of multiple copies of one or a few types of protein subunit arranged with either icosahedral or helical symmetry. In many cases, capsids can be produced in large quantities either by the infection of plants or by the expression of the subunit(s) in a variety of heterologous systems. In view of their relative simplicity, stability and ease of production, plant virus particles or virus-like particles (VLPs) have attracted attention as potential reagents for applications in bionanotechnology. As a result, plant virus particles have been subjected to both genetic and chemical modification, have been used to encapsulate foreign material and have, themselves, been incorporated into supramolecular structures.
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Plchova H, Moravec T, Hoffmeisterova H, Folwarczna J, Cerovska N. Expression of Human papillomavirus 16 E7ggg oncoprotein on N- and C-terminus of Potato virus X coat protein in bacterial and plant cells. Protein Expr Purif 2011; 77:146-52. [PMID: 21266198 DOI: 10.1016/j.pep.2011.01.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2010] [Revised: 01/18/2011] [Accepted: 01/18/2011] [Indexed: 11/21/2022]
Abstract
The E7 oncoprotein from Human papillomavirus type 16 (HPV16) is an attractive candidate for anti-cancer therapeutical vaccine development. In this study, we engineered different fusions of mutagenized coding sequence of E7 oncoprotein (E7ggg) with coat protein of Potato virus X (PVX CP) both on 5'- and 3'-terminus of PVX CP and evaluated the influence of the length of linker (no linker, 4, 15aa) connecting PVX CP and E7ggg on their production. At first the expression in Escherichia coli was conducted to assess the characteristics of the recombinant protein prior to be further produced in plants, that is, resultant proteins were used for screening of their immunological reactivity with antibodies against PVX CP and E7. Fusion proteins successfully expressed in bacteria and plants were partially purified and their reactivity and ability to form virus-like particles were evaluated with anti-E7 antibodies.
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Affiliation(s)
- Helena Plchova
- Academy of Sciences of the Czech Republic, 160 00 Prague 6, Czech Republic
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Buriani G, Mancini C, Benvenuto E, Baschieri S. Plant heat shock protein 70 as carrier for immunization against a plant-expressed reporter antigen. Transgenic Res 2011; 20:331-44. [PMID: 20559870 DOI: 10.1007/s11248-010-9418-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2010] [Accepted: 06/04/2010] [Indexed: 01/18/2023]
Abstract
Mammalian Heat Shock Proteins (HSP), have potent immune-stimulatory properties due to the natural capability to associate with polypeptides and bind receptors on antigen presenting cells. The present study was aimed to explore whether plant HSP, and in particular HSP70, share similar properties. We wanted in particular to evaluate if HSP70 extracted in association to naturally bound polypeptides from plant tissues expressing a recombinant "reporter" antigen, carry antigen-derived polypeptides and can be used to activate antigen-specific immune responses. This application of HSP70 has been very poorly investigated so far. The analysis started by structurally modeling the plant protein and defining the conditions that ensure maximal expression levels and optimal recovery from plant tissues. Afterwards, HSP70 was purified from Nicotiana benthamiana leaves transiently expressing a heterologous "reporter" protein. The purification was carried out taking care to avoid the release from HSP70 of the polypeptides chaperoned within plant cells. The evaluation of antibody titers in mice sera subsequent to the subcutaneous delivery of the purified HSP70 demonstrated that it is highly effective in priming humoral immune responses specific to the plant expressed "reporter" protein. Overall results indicated that plant-derived HSP70 shares structural and functional properties with the mammalian homologue. This study paves the way to further investigations targeted at determining the properties of HSP70 extracted from plants expressing foreign recombinant antigens as a readily available immunological carrier for the efficient delivery of polypeptides derived from these antigens.
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MESH Headings
- Amino Acid Sequence
- Animals
- Antibodies, Viral/blood
- Antibody Specificity
- Antigens, Viral/genetics
- Antigens, Viral/immunology
- Antigens, Viral/metabolism
- Capsid Proteins/genetics
- Capsid Proteins/immunology
- Capsid Proteins/metabolism
- Drug Delivery Systems
- Female
- Genes, Reporter/genetics
- Genes, Reporter/physiology
- HSP70 Heat-Shock Proteins/chemistry
- HSP70 Heat-Shock Proteins/genetics
- HSP70 Heat-Shock Proteins/immunology
- HSP70 Heat-Shock Proteins/metabolism
- Immunization
- Immunoglobulin G/blood
- Mice
- Mice, Inbred C57BL
- Mice, Transgenic
- Models, Molecular
- Molecular Sequence Data
- Recombinant Fusion Proteins/genetics
- Recombinant Fusion Proteins/immunology
- Recombinant Fusion Proteins/metabolism
- Nicotiana/genetics
- Nicotiana/metabolism
- Vaccines, Subunit
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Affiliation(s)
- Giampaolo Buriani
- Technical Unit Radiation Biology and Human Health, Biotechnologies Laboratory, ENEA C.R. Casaccia, Via Anguillarese 301, 00123, Rome, Italy
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Abstract
The 'easiest' vaccines, base on production of neutralizing antibodies, have been made. With the emergence of chronic diseases, vaccine developers have understood the importance to trigger an efficient cellular mediated immune response (CTL response) to respond to this medical need. Several options are currently in development and the utilization of plant virus as vaccine platform for the trigger of a CTL response is considered as an interesting avenue. The highly ordered structures of plant viruses are good triggers of the innate immune system, which in turn, is used to initiate an immune response to a vaccine target. It is likely that plant viruses will play an important role in the development of the vaccine of the futures even if there is still several challenges to face.
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