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Sun X, Lian Y, Tian T, Cui Z. Advancements in Functional Nanomaterials Inspired by Viral Particles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402980. [PMID: 39058214 DOI: 10.1002/smll.202402980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 06/27/2024] [Indexed: 07/28/2024]
Abstract
Virus-like particles (VLPs) are nanostructures composed of one or more structural proteins, exhibiting stable and symmetrical structures. Their precise compositions and dimensions provide versatile opportunities for modifications, enhancing their functionality. Consequently, VLP-based nanomaterials have gained widespread adoption across diverse domains. This review focuses on three key aspects: the mechanisms of viral capsid protein self-assembly into VLPs, design methods for constructing multifunctional VLPs, and strategies for synthesizing multidimensional nanomaterials using VLPs. It provides a comprehensive overview of the advancements in virus-inspired functional nanomaterials, encompassing VLP assembly, functionalization, and the synthesis of multidimensional nanomaterials. Additionally, this review explores future directions, opportunities, and challenges in the field of VLP-based nanomaterials, aiming to shed light on potential advancements and prospects in this exciting area of research.
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Affiliation(s)
- Xianxun Sun
- College of Life Science, Jiang Han University, Wuhan, 430056, China
| | - Yindong Lian
- College of Life Science, Jiang Han University, Wuhan, 430056, China
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Tao Tian
- College of Life Science, Jiang Han University, Wuhan, 430056, China
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Zongqiang Cui
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China
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2
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Carboni F, Cozzi R, Romagnoli G, Tuscano G, Balocchi C, Buffi G, Bodini M, Brettoni C, Giusti F, Marchi S, Brogioni G, Brogioni B, Cinelli P, Cappelli L, Nocciolini C, Senesi S, Facciotti C, Frigimelica E, Fabbrini M, Stranges D, Savino S, Maione D, Adamo R, Wizel B, Margarit I, Romano MR. Proof of concept for a single-dose Group B Streptococcus vaccine based on capsular polysaccharide conjugated to Qβ virus-like particles. NPJ Vaccines 2023; 8:152. [PMID: 37803013 PMCID: PMC10558462 DOI: 10.1038/s41541-023-00744-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 09/15/2023] [Indexed: 10/08/2023] Open
Abstract
A maternal vaccine to protect neonates against Group B Streptococcus invasive infection is an unmet medical need. Such a vaccine should ideally be offered during the third trimester of pregnancy and induce strong immune responses after a single dose to maximize the time for placental transfer of protective antibodies. A key target antigen is the capsular polysaccharide, an anti-phagocytic virulence factor that elicits protective antibodies when conjugated to carrier proteins. The most prevalent polysaccharide serotypes conjugated to tetanus or diphtheria toxoids have been tested in humans as monovalent and multivalent formulations, showing excellent safety profiles and immunogenicity. However, responses were suboptimal in unprimed individuals after a single shot, the ideal schedule for vaccination during the third trimester of pregnancy. In the present study, we obtained and optimized self-assembling virus-like particles conjugated to Group B Streptococcus capsular polysaccharides. The resulting glyco-nanoparticles elicited strong immune responses in mice already after one immunization, providing pre-clinical proof of concept for a single-dose vaccine.
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3
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Trashi I, Durbacz MZ, Trashi O, Wijesundara YH, Ehrman RN, Chiev AC, Darwin CB, Herbert FC, Gadhvi J, De Nisco NJ, Nielsen SO, Gassensmith JJ. Self-assembly of a fluorescent virus-like particle for imaging in tissues with high autofluorescence. J Mater Chem B 2023; 11:4445-4452. [PMID: 37144595 DOI: 10.1039/d3tb00469d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Virus-like particles (VLPs) are engineered nanoparticles that mimic the properties of viruses-like high tolerance to heat and proteases-but lack a viral genome, making them non-infectious. They are easily modified chemically and genetically, making them useful in drug delivery, enhancing vaccine efficacy, gene delivery, and cancer immunotherapy. One such VLP is Qβ, which has an affinity towards an RNA hairpin structure found in its viral RNA that drives the self-assembly of the capsid. It is possible to usurp the native way infectious Qβ self-assembles to encapsidate its RNA to place enzymes inside the VLP's lumen as a protease-resistant cage. Further, using RNA templates that mimic the natural self-assembly of the native capsid, fluorescent proteins (FPs) have been placed inside VLPs in a "one pot" expression system. Autofluorescence in tissues can lead to misinterpretation of results and unreliable science, so we created a single-pot expression system that uses the fluorescent protein smURFP, which avoids autofluorescence and has spectral properties compatible with standard commercial filter sets on confocal microscopes. In this work, we were able to simplify the existing "one-pot" expression system while creating high-yielding fluorescent VLP nanoparticles that could easily be imaged inside lung epithelial tissue.
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Affiliation(s)
- Ikeda Trashi
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080, USA.
| | - Mateusz Z Durbacz
- Department of Molecular Biology and Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Orikeda Trashi
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080, USA.
| | - Yalini H Wijesundara
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080, USA.
| | - Ryanne N Ehrman
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080, USA.
| | - Alyssa C Chiev
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080, USA.
| | - Cary B Darwin
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080, USA.
| | - Fabian C Herbert
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080, USA.
| | - Jashkaran Gadhvi
- Department of Biological Science, The University of Texas at Dallas, Richardson, Texas 75080, USA
| | - Nicole J De Nisco
- Department of Biological Science, The University of Texas at Dallas, Richardson, Texas 75080, USA
| | - Steven O Nielsen
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080, USA.
| | - Jeremiah J Gassensmith
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080, USA.
- Department of Bioengineering, The University of Texas at Dallas, Richardson, Texas 75080, USA
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4
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Parsamian P, Liu Y, Xie C, Chen Z, Kang P, Wijesundara YH, Al-Kharji NM, Ehrman RN, Trashi O, Randrianalisoa JH, Zhu X, D’Souza M, Wilson LA, Kim MJ, Qin Z, Gassensmith JJ. Enhanced Nanobubble Formation: Gold Nanoparticle Conjugation to Qβ Virus-like Particles. ACS NANO 2023; 17:7797-7805. [PMID: 36884260 PMCID: PMC10461784 DOI: 10.1021/acsnano.3c00638] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Plasmonic gold nanostructures are a prevalent tool in modern hypersensitive analytical techniques such as photoablation, bioimaging, and biosensing. Recent studies have shown that gold nanostructures generate transient nanobubbles through localized heating and have been found in various biomedical applications. However, the current method of plasmonic nanoparticle cavitation events has several disadvantages, specifically including small metal nanostructures (≤10 nm) which lack size control, tuneability, and tissue localization by use of ultrashort pulses (ns, ps) and high-energy lasers which can result in tissue and cellular damage. This research investigates a method to immobilize sub-10 nm AuNPs (3.5 and 5 nm) onto a chemically modified thiol-rich surface of Qβ virus-like particles. These findings demonstrate that the multivalent display of sub-10 nm gold nanoparticles (AuNPs) caused a profound and disproportionate increase in photocavitation by upward of 5-7-fold and significantly lowered the laser fluency by 4-fold when compared to individual sub-10 nm AuNPs. Furthermore, computational modeling showed that the cooling time of QβAuNP scaffolds is significantly extended than that of individual AuNPs, proving greater control of laser fluency and nanobubble generation as seen in the experimental data. Ultimately, these findings showed how QβAuNP composites are more effective at nanobubble generation than current methods of plasmonic nanoparticle cavitation.
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Affiliation(s)
- Perouza Parsamian
- Department of Chemistry and Biochemistry University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Yaning Liu
- Department of Mechanical Engineering University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Chen Xie
- Department of Mechanical Engineering University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Zhuo Chen
- Department of Chemistry and Biochemistry University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Peiyuan Kang
- Department of Mechanical Engineering University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Yalini H. Wijesundara
- Department of Chemistry and Biochemistry University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Noora M. Al-Kharji
- Department of Chemistry and Biochemistry University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Ryanne Nicole Ehrman
- Department of Chemistry and Biochemistry University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Orikeda Trashi
- Department of Chemistry and Biochemistry University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Jaona Harifidy Randrianalisoa
- Institut de Thermique, Mécanique, Matériaux – ITheMM EA 7548 Université de Reims Champagne-Ardenne, Campus Moulin de la Housse, F-51687, Reims, France
| | - Xiangyu Zhu
- Department of Materials Science and Engineering University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Matthew D’Souza
- Department of Chemistry and Biochemistry University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Lucas Anderson Wilson
- Department of Chemistry and Biochemistry University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Moon J. Kim
- Department of Materials Science and Engineering University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Zhenpeng Qin
- Department of Mechanical Engineering University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Jeremiah J. Gassensmith
- Department of Chemistry and Biochemistry University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
- Department of Biomedical Engineering University of Texas at Dallas 800 West Campbell Road, Richardson, Texas 75080-3021, United States
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5
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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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6
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Cao Y, Song W, Chen X. Multivalent sialic acid materials for biomedical applications. Biomater Sci 2023; 11:2620-2638. [PMID: 36661319 DOI: 10.1039/d2bm01595a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Sialic acid is a kind of monosaccharide expressed on the non-reducing end of glycoproteins or glycolipids. It acts as a signal molecule combining with its natural receptors such as selectins and siglecs (sialic acid-binding immunoglobulin-like lectins) in intercellular interactions like immunological surveillance and leukocyte infiltration. The last few decades have witnessed the exploration of the roles that sialic acid plays in different physiological and pathological processes and the use of sialic acid-modified materials as therapeutics for related diseases like immune dysregulation and virus infection. In this review, we will briefly introduce the biomedical function of sialic acids in organisms and the utilization of multivalent sialic acid materials for targeted drug delivery as well as therapeutic applications including anti-inflammation and anti-virus.
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Affiliation(s)
- Yusong Cao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China. .,University of Science and Technology of China, Hefei, 230026, China
| | - Wantong Song
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China. .,University of Science and Technology of China, Hefei, 230026, China.,Jilin Biomedical Polymers Engineering Laboratory, Changchun, 130022, China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China. .,University of Science and Technology of China, Hefei, 230026, China.,Jilin Biomedical Polymers Engineering Laboratory, Changchun, 130022, China
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7
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Wijesundara YH, Herbert FC, Kumari S, Howlett T, Koirala S, Trashi O, Trashi I, Al-Kharji NM, Gassensmith JJ. Rip it, stitch it, click it: A Chemist's guide to VLP manipulation. Virology 2022; 577:105-123. [PMID: 36343470 DOI: 10.1016/j.virol.2022.10.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/09/2022] [Accepted: 10/19/2022] [Indexed: 11/06/2022]
Abstract
Viruses are some of nature's most ubiquitous self-assembled molecular containers. Evolutionary pressures have created some incredibly robust, thermally, and enzymatically resistant carriers to transport delicate genetic information safely. Virus-like particles (VLPs) are human-engineered non-infectious systems that inherit the parent virus' ability to self-assemble under controlled conditions while being non-infectious. VLPs and plant-based viral nanoparticles are becoming increasingly popular in medicine as their self-assembly properties are exploitable for applications ranging from diagnostic tools to targeted drug delivery. Understanding the basic structure and principles underlying the assembly of higher-order structures has allowed researchers to disassemble (rip it), reassemble (stitch it), and functionalize (click it) these systems on demand. This review focuses on the current toolbox of strategies developed to manipulate these systems by ripping, stitching, and clicking to create new technologies in the biomedical space.
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Affiliation(s)
- Yalini H Wijesundara
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Rd. Richardson, TX, 75080, USA
| | - Fabian C Herbert
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Rd. Richardson, TX, 75080, USA
| | - Sneha Kumari
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Rd. Richardson, TX, 75080, USA
| | - Thomas Howlett
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Rd. Richardson, TX, 75080, USA
| | - Shailendra Koirala
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Rd. Richardson, TX, 75080, USA
| | - Orikeda Trashi
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Rd. Richardson, TX, 75080, USA
| | - Ikeda Trashi
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Rd. Richardson, TX, 75080, USA
| | - Noora M Al-Kharji
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Rd. Richardson, TX, 75080, USA
| | - Jeremiah J Gassensmith
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Rd. Richardson, TX, 75080, USA; Department of Biomedical Engineering, The University of Texas at Dallas, 800 West Campbell Rd. Richardson, TX, 75080, USA.
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8
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McNeale D, Dashti N, Cheah LC, Sainsbury F. Protein cargo encapsulation by
virus‐like
particles: Strategies and applications. WIRES NANOMEDICINE AND NANOBIOTECHNOLOGY 2022; 15:e1869. [PMID: 36345849 DOI: 10.1002/wnan.1869] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 11/10/2022]
Abstract
Viruses and the recombinant protein cages assembled from their structural proteins, known as virus-like particles (VLPs), have gained wide interest as tools in biotechnology and nanotechnology. Detailed structural information and their amenability to genetic and chemical modification make them attractive systems for further engineering. This review describes the range of non-enveloped viruses that have been co-opted for heterologous protein cargo encapsulation and the strategies that have been developed to drive encapsulation. Spherical capsids of a range of sizes have been used as platforms for protein cargo encapsulation. Various approaches, based on native and non-native interactions between the cargo proteins and inner surface of VLP capsids, have been devised to drive encapsulation. Here, we outline the evolution of these approaches, discussing their benefits and limitations. Like the viruses from which they are derived, VLPs are of interest in both biomedical and materials applications. The encapsulation of protein cargo inside VLPs leads to numerous uses in both fundamental and applied biocatalysis and biomedicine, some of which are discussed herein. The applied science of protein-encapsulating VLPs is emerging as a research field with great potential. Developments in loading control, higher order assembly, and capsid optimization are poised to realize this potential in the near future. This article is categorized under: Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Biology-Inspired Nanomaterials > Protein and Virus-Based Structures.
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Affiliation(s)
- Donna McNeale
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery Griffith University Nathan Queensland Australia
| | - Noor Dashti
- Australian Institute for Bioengineering and Nanotechnology The University of Queensland St Lucia Queensland Australia
| | - Li Chen Cheah
- Australian Institute for Bioengineering and Nanotechnology The University of Queensland St Lucia Queensland Australia
| | - Frank Sainsbury
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery Griffith University Nathan Queensland Australia
- Australian Institute for Bioengineering and Nanotechnology The University of Queensland St Lucia Queensland Australia
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9
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Tsidilkovski L, Mohajerani F, Hagan MF. Microcompartment assembly around multicomponent fluid cargoes. J Chem Phys 2022; 156:245104. [PMID: 35778087 PMCID: PMC9249432 DOI: 10.1063/5.0089556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This article describes dynamical simulations of the assembly of an icosahedral protein shell around a bicomponent fluid cargo. Our simulations are motivated by bacterial microcompartments, which are protein shells found in bacteria that assemble around a complex of enzymes and other components involved in certain metabolic processes. The simulations demonstrate that the relative interaction strengths among the different cargo species play a key role in determining the amount of each species that is encapsulated, their spatial organization, and the nature of the shell assembly pathways. However, the shell protein–shell protein and shell protein–cargo component interactions that help drive assembly and encapsulation also influence cargo composition within certain parameter regimes. These behaviors are governed by a combination of thermodynamic and kinetic effects. In addition to elucidating how natural microcompartments encapsulate multiple components involved within reaction cascades, these results have implications for efforts in synthetic biology to colocalize alternative sets of molecules within microcompartments to accelerate specific reactions. More broadly, the results suggest that coupling between self-assembly and multicomponent liquid–liquid phase separation may play a role in the organization of the cellular cytoplasm.
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Affiliation(s)
- Lev Tsidilkovski
- Martin A. Fisher School of Physics, Brandeis University, Waltham, Massachusetts 02453, USA
| | - Farzaneh Mohajerani
- Martin A. Fisher School of Physics, Brandeis University, Waltham, Massachusetts 02453, USA
| | - Michael F Hagan
- Martin A. Fisher School of Physics, Brandeis University, Waltham, Massachusetts 02453, USA
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10
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Uchida M, Manzo E, Echeveria D, Jiménez S, Lovell L. Harnessing physicochemical properties of virus capsids for designing enzyme confined nanocompartments. Curr Opin Virol 2022; 52:250-257. [PMID: 34974380 PMCID: PMC8939255 DOI: 10.1016/j.coviro.2021.12.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 12/07/2021] [Accepted: 12/10/2021] [Indexed: 12/13/2022]
Abstract
Viruses have drawn significant scientific interest from a wide variety of disciplines beyond virology because of their elegant architectures and delicately balanced activities. A virus-like particle (VLP), a noninfectious protein cage derived from viruses or other cage-forming proteins, has been exploited as a nano-scale platform for bioinspired engineering and synthetic manipulation with a range of applications. Encapsulation of functional proteins, especially enzymes, is an emerging use of VLPs that is promising not only for developing efficient and robust catalytic materials, but also for providing fundamental insights into the effects of enzyme compartmentalization commonly observed in cells. This review highlights recent advances in employing VLPs as a container for confining enzymes. To accomplish larger and more controlled enzyme loading, various different enzyme encapsulation strategies have been developed; many of these strategies are inspired from assembly and genome loading mechanisms of viral capsids. Characterization of VLPs' physicochemical properties, such as porosity, could lead to rational manipulation and a better understanding of the catalytic behavior of the materials.
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Affiliation(s)
- Masaki Uchida
- Department of Chemistry and Biochemistry, California State University, Fresno, 2555 E. San Ramon Ave., Fresno, CA 93740, USA.
| | - Elia Manzo
- Department of Chemistry and Biochemistry, California State University, Fresno, 2555 E. San Ramon Ave., Fresno, CA 93740, USA
| | - Dustin Echeveria
- Department of Chemistry and Biochemistry, California State University, Fresno, 2555 E. San Ramon Ave., Fresno, CA 93740, USA
| | - Sophie Jiménez
- Department of Chemistry and Biochemistry, California State University, Fresno, 2555 E. San Ramon Ave., Fresno, CA 93740, USA
| | - Logan Lovell
- Department of Chemistry and Biochemistry, California State University, Fresno, 2555 E. San Ramon Ave., Fresno, CA 93740, USA
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11
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Larsen JB, Taebnia N, Dolatshahi-Pirouz A, Eriksen AZ, Hjørringgaard C, Kristensen K, Larsen NW, Larsen NB, Marie R, Mündler AK, Parhamifar L, Urquhart AJ, Weller A, Mortensen KI, Flyvbjerg H, Andresen TL. Imaging therapeutic peptide transport across intestinal barriers. RSC Chem Biol 2021; 2:1115-1143. [PMID: 34458827 PMCID: PMC8341777 DOI: 10.1039/d1cb00024a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 06/09/2021] [Indexed: 12/14/2022] Open
Abstract
Oral delivery is a highly preferred method for drug administration due to high patient compliance. However, oral administration is intrinsically challenging for pharmacologically interesting drug classes, in particular pharmaceutical peptides, due to the biological barriers associated with the gastrointestinal tract. In this review, we start by summarizing the pharmacological performance of several clinically relevant orally administrated therapeutic peptides, highlighting their low bioavailabilities. Thus, there is a strong need to increase the transport of peptide drugs across the intestinal barrier to realize future treatment needs and further development in the field. Currently, progress is hampered by a lack of understanding of transport mechanisms that govern intestinal absorption and transport of peptide drugs, including the effects of the permeability enhancers commonly used to mediate uptake. We describe how, for the past decades, mechanistic insights have predominantly been gained using functional assays with end-point read-out capabilities, which only allow indirect study of peptide transport mechanisms. We then focus on fluorescence imaging that, on the other hand, provides opportunities to directly visualize and thus follow peptide transport at high spatiotemporal resolution. Consequently, it may provide new and detailed mechanistic understanding of the interplay between the physicochemical properties of peptides and cellular processes; an interplay that determines the efficiency of transport. We review current methodology and state of the art in the field of fluorescence imaging to study intestinal barrier transport of peptides, and provide a comprehensive overview of the imaging-compatible in vitro, ex vivo, and in vivo platforms that currently are being developed to accelerate this emerging field of research.
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Affiliation(s)
- Jannik Bruun Larsen
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
| | - Nayere Taebnia
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
| | - Alireza Dolatshahi-Pirouz
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
| | - Anne Zebitz Eriksen
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
| | - Claudia Hjørringgaard
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
| | - Kasper Kristensen
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
| | - Nanna Wichmann Larsen
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
| | - Niels Bent Larsen
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
| | - Rodolphe Marie
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
| | - Ann-Kathrin Mündler
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
| | - Ladan Parhamifar
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
| | - Andrew James Urquhart
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
| | - Arjen Weller
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
| | - Kim I Mortensen
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
| | - Henrik Flyvbjerg
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
| | - Thomas Lars Andresen
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark DK-2800, Kgs. Lyngby Denmark
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12
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Martino ML, Crooke SN, Manchester M, Finn MG. Single-Point Mutations in Qβ Virus-like Particles Change Binding to Cells. Biomacromolecules 2021; 22:3332-3341. [PMID: 34251176 DOI: 10.1021/acs.biomac.1c00443] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Virus-like particles (VLPs) constitute large, polyvalent platforms onto which a wide variety of functional units can be grafted. Their use in biological settings often depends on their specific binding to cells or receptors of interest; this can be compromised by excessive nonspecific association with other cells. We found that lysine residues mediate such nonspecific interactions, presumably by virtue of protonation and interaction with anionic membrane lipid headgroups and/or complementary residues of cell surface proteins and polysaccharides. Chemical acylation of surface-exposed amines of the Qβ VLP led to a significant reduction in the association of particles with mammalian cells. Single-point mutations of particular lysine residues to either glutamine, glutamic acid, tryptophan, or phenylalanine were mostly well-tolerated and formed intact capsids, but the introduction of double and triple mutants was far less forgiving. Introduction of glutamic acid at position 13 (K13E) led to a dramatic increase in cellular binding, whereas removal of the lysine at position 46 (K46Q) led to an equally striking reduction. Several plasma membrane components were found to specifically interact with the Qβ capsid irrespective of surface charge. These results suggest that specific cellular interactions are engaged or obviated by such mutations and provide us with more "benign" particles to which can be added binding functionality for targeted delivery applications.
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Affiliation(s)
- Marisa L Martino
- Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Stephen N Crooke
- School of Chemistry and Biochemistry, School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Marianne Manchester
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, California 92093, United States
| | - M G Finn
- Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States.,School of Chemistry and Biochemistry, School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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13
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Chen L, Hong W, Ren W, Xu T, Qian Z, He Z. Recent progress in targeted delivery vectors based on biomimetic nanoparticles. Signal Transduct Target Ther 2021; 6:225. [PMID: 34099630 PMCID: PMC8182741 DOI: 10.1038/s41392-021-00631-2] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 04/28/2021] [Accepted: 04/29/2021] [Indexed: 02/05/2023] Open
Abstract
Over the past decades, great interest has been given to biomimetic nanoparticles (BNPs) since the rise of targeted drug delivery systems and biomimetic nanotechnology. Biological vectors including cell membranes, extracellular vesicles (EVs), and viruses are considered promising candidates for targeted delivery owing to their biocompatibility and biodegradability. BNPs, the integration of biological vectors and functional agents, are anticipated to load cargos or camouflage synthetic nanoparticles to achieve targeted delivery. Despite their excellent intrinsic properties, natural vectors are deliberately modified to endow multiple functions such as good permeability, improved loading capability, and high specificity. Through structural modification and transformation of the vectors, they are pervasively utilized as more effective vehicles that can deliver contrast agents, chemotherapy drugs, nucleic acids, and genes to target sites for refractory disease therapy. This review summarizes recent advances in targeted delivery vectors based on cell membranes, EVs, and viruses, highlighting the potential applications of BNPs in the fields of biomedical imaging and therapy industry, as well as discussing the possibility of clinical translation and exploitation trend of these BNPs.
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Affiliation(s)
- Li Chen
- Department of Pharmacy, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Weiqi Hong
- Department of Pharmacy, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Wenyan Ren
- Department of Pharmacy, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ting Xu
- Department of Pharmacy, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China
| | - Zhiyong Qian
- Department of Pharmacy, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zhiyao He
- Department of Pharmacy, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China.
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Wu Y, Li J, Shin HJ. Self-assembled Viral Nanoparticles as Targeted Anticancer Vehicles. BIOTECHNOL BIOPROC E 2021; 26:25-38. [PMID: 33584104 PMCID: PMC7872722 DOI: 10.1007/s12257-020-0383-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/04/2021] [Accepted: 01/06/2021] [Indexed: 12/31/2022]
Abstract
Viral nanoparticles (VNPs) comprise a variety of mammalian viruses, plant viruses, and bacteriophages, that have been adopted as building blocks and supra-molecular templates in nanotechnology. VNPs demonstrate the dynamic, monodisperse, polyvalent, and symmetrical architectures which represent examples of such biological templates. These programmable scaffolds have been exploited for genetic and chemical manipulation for displaying of targeted moieties together with encapsulation of various payloads for diagnosis or therapeutic intervention. The drug delivery system based on VNPs offer diverse advantages over synthetic nanoparticles, including biocompatibility, biodegradability, water solubility, and high uptake capability. Here we summarize the recent progress of VNPs especially as targeted anticancer vehicles from the encapsulation and surface modification mechanisms, involved viruses and VNPs, to their application potentials.
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Affiliation(s)
- Yuanzheng Wu
- Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Shandong Provincial Key Laboratory of Applied Microbiology, Jinan, 250103 China
| | - Jishun Li
- Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Shandong Provincial Key Laboratory of Applied Microbiology, Jinan, 250103 China
| | - Hyun-Jae Shin
- Department of Biochemical and Polymer Engineering, Chosun University, Gwangju, 61452 Korea
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15
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Stupka I, Heddle JG. Artificial protein cages – inspiration, construction, and observation. Curr Opin Struct Biol 2020; 64:66-73. [DOI: 10.1016/j.sbi.2020.05.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 05/05/2020] [Accepted: 05/19/2020] [Indexed: 12/29/2022]
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16
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Das S, Zhao L, Crooke SN, Tran L, Bhattacharya S, Gaucher EA, Finn MG. Stabilization of Near-Infrared Fluorescent Proteins by Packaging in Virus-like Particles. Biomacromolecules 2020; 21:2432-2439. [DOI: 10.1021/acs.biomac.0c00362] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Soumen Das
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30306, United States
| | - Liangjun Zhao
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30306, United States
| | - Stephen N. Crooke
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30306, United States
| | - Lily Tran
- Department of Biology, Georgia State University, Atlanta, Georgia 30303, United States
| | - Sonia Bhattacharya
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30306, United States
| | - Eric A. Gaucher
- Department of Biology, Georgia State University, Atlanta, Georgia 30303, United States
| | - M. G. Finn
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30306, United States
- School of Biological Sciences, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30306, United States
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17
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Herbert FC, Brohlin OR, Galbraith T, Benjamin C, Reyes CA, Luzuriaga MA, Shahrivarkevishahi A, Gassensmith JJ. Supramolecular Encapsulation of Small-Ultrared Fluorescent Proteins in Virus-Like Nanoparticles for Noninvasive In Vivo Imaging Agents. Bioconjug Chem 2020; 31:1529-1536. [PMID: 32343135 DOI: 10.1021/acs.bioconjchem.0c00190] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Icosahedral virus-like particles (VLPs) derived from bacteriophages Qβ and PP7 encapsulating small-ultrared fluorescent protein (smURFP) were produced using a versatile supramolecular capsid disassemble-reassemble approach. The generated fluorescent VLPs display identical structural properties to their nonfluorescent analogs. Encapsulated smURFP shows indistinguishable photochemical properties to its unencapsulated counterpart, exhibits outstanding stability toward pH, and produces bright in vitro images following phagocytosis by macrophages. In vivo imaging allows the biodistribution to be imaged at different time points. Ex vivo imaging of intravenously administered encapsulated smURFP reveals a localization in the liver and kidneys after 2 h blood circulation and substantial elimination after 16 h of imaging, highlighting the potential application of these constructs as noninvasive in vivo imaging agents.
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Abstract
Capsid-based virus particles are widely engineered as viral nanoparticles and virus-like nanoparticles. The highly organized and uniform capsid structures make them ideal candidates for both in vitro and in vivo applications such as therapeutic delivery vehicles or enzymatic nanoreactors. Viruses have adapted to naturally infect a wide variety of organisms making their production achievable in various expression systems from bacterial to plants. Viral capsids can be modified externally and internally to suit the final application. The wide range of possible applications, ease of production in the system of choice, and customizable modification of viral capsids makes them an attractive choice in the field of nanotechnology. In this chapter we aim to provide a generic protocol for the purification and characterization of virus-derived nanoparticles and methodology for chemically labelling them to monitor their uptake in mammalian cells.
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Crooke SN, Schimer J, Raji I, Wu B, Oyelere AK, Finn MG. Lung Tissue Delivery of Virus-Like Particles Mediated by Macrolide Antibiotics. Mol Pharm 2019; 16:2947-2955. [DOI: 10.1021/acs.molpharmaceut.9b00180] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Stephen N. Crooke
- School of Chemistry and Biochemistry, ∥School of Biological Sciences, and §Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Jiri Schimer
- School of Chemistry and Biochemistry, ∥School of Biological Sciences, and §Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Institute of Organic Chemistry and Biochemistry of the CAS, 16610 Prague, Czech Republic
| | - Idris Raji
- School of Chemistry and Biochemistry, ∥School of Biological Sciences, and §Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Bocheng Wu
- School of Chemistry and Biochemistry, ∥School of Biological Sciences, and §Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Adegboyega K. Oyelere
- School of Chemistry and Biochemistry, ∥School of Biological Sciences, and §Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - M. G. Finn
- School of Chemistry and Biochemistry, ∥School of Biological Sciences, and §Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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20
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Pang HH, Chen PY, Wei KC, Huang CW, Shiue YL, Huang CY, Yang HW. Convection-Enhanced Delivery of a Virus-Like Nanotherapeutic Agent with Dual-Modal Imaging for Besiegement and Eradication of Brain Tumors. Theranostics 2019; 9:1752-1763. [PMID: 31037136 PMCID: PMC6485197 DOI: 10.7150/thno.30977] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 01/06/2019] [Indexed: 12/21/2022] Open
Abstract
Convection-enhanced delivery (CED) is a promising technique for infusing a therapeutic agent directly into the brain, bypassing the blood-brain barrier (BBB) with a pressure gradient to increase drug concentration specifically around the brain tumor, thereby enhancing tumor inhibition and limiting the systemic toxicity of chemotherapeutic agents. Herein, we developed a dual-imaging monitored virus-like nanotherapeutic agent as an ideal CED infusate, which can be delivered to specifically besiege and eradicate brain tumors. Methods: We report one-pot fabrication of green-fluorescence virus-like particles (gVLPs) in Escherichia coli (E. coli) for epirubicin (EPI) loading, cell-penetrating peptide (CPP) modification, and 68Ga-DOTA labeling to form a positron emission tomography (PET)-fluorescence dual-imaging monitored virus-like nanotherapeutic agent (68Ga-DOTA labeled EPI@CPP-gVLPs) combined with CED for brain tumor therapy and image tracking. The drug delivery, cytotoxicity, cell uptake, biodistribution, PET-fluorescence imaging and anti-tumor efficacy of the 68Ga-DOTA labeled EPI@CPP-gVLPs were investigated in vitro and in vivo by using U87-MG glioma cell line and U87-MG tumor model. Results: The 68Ga-DOTA-labeled EPI@CPP-gVLPs showed excellent serum stability as an ideal CED infusate (30-40 nm in size), and can be disassembled through proteolytic degradation of the coat protein shell to enable drug release and clearance to minimize long-term accumulation. The present results indicated that 68Ga-DOTA-labeled EPI@CPP-gVLPs can provide a sufficiently high drug payload (39.2 wt% for EPI) and excellent detectability through fluorescence and PET imaging to accurately represent drug distribution during CED infusion. In vivo delivery of the 68Ga-DOTA-labeled EPI@CPP-gVLPs through CED demonstrated that the median survival was prolonged to over 50 days when the mice received two administrations (once per week) compared with the control group (median survival: 26 days). Conclusion: The results clearly indicated that a combination of 68Ga-DOTA-labeled EPI@CPP-gVLPs and CED can serve as a flexible and powerful synergistic treatment in brain tumors without evidence of systemic toxicity.
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Affiliation(s)
- Hao-Han Pang
- Institute of Medical Science and Technology, National Sun Yat-sen University, 70 Lienhai Rd., Kaohsiung 80424, Taiwan
- Institute of Biomedical Sciences, National Sun Yat-sen University, 70 Lienhai Rd., Kaohsiung 80424, Taiwan
| | - Pin-Yuan Chen
- Department of Neurosurgery, Chang Gung Memorial Hospital, Keelung, 222 Maijin Rd., Keelung 20401, Taiwan
- Community Medicine Research Center and Laboratory Animal Center, Chang Gung Memorial Hospital, Keelung, 222 Maijin Rd., Keelung 20401, Taiwan
- School of Medicine, Chang Gung University, 259 Wenhua 1st Rd., Guishan Dist., Taoyuan 33302, Taiwan
| | - Kuo-Chen Wei
- School of Medicine, Chang Gung University, 259 Wenhua 1st Rd., Guishan Dist., Taoyuan 33302, Taiwan
- Department of Neurosurgery, Chang Gung Memorial Hospital, Linkou, 5 Fuxing St., Guishan Dist., Taoyuan 33305, Taiwan
| | - Chiun-Wei Huang
- Center for Advanced Molecular Imaging and Translation, Chang Gung Memorial Hospital, Linkou, 5 Fuxing St., Guishan Dist., Taoyuan 33305, Taiwan
| | - Yow-Ling Shiue
- Institute of Biomedical Sciences, National Sun Yat-sen University, 70 Lienhai Rd., Kaohsiung 80424, Taiwan
| | - Chiung-Yin Huang
- School of Medicine, Chang Gung University, 259 Wenhua 1st Rd., Guishan Dist., Taoyuan 33302, Taiwan
- Department of Neurosurgery, Chang Gung Memorial Hospital, Linkou, 5 Fuxing St., Guishan Dist., Taoyuan 33305, Taiwan
| | - Hung-Wei Yang
- Institute of Medical Science and Technology, National Sun Yat-sen University, 70 Lienhai Rd., Kaohsiung 80424, Taiwan
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21
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Wilson CJ, Bommarius AS, Champion JA, Chernoff YO, Lynn DG, Paravastu AK, Liang C, Hsieh MC, Heemstra JM. Biomolecular Assemblies: Moving from Observation to Predictive Design. Chem Rev 2018; 118:11519-11574. [PMID: 30281290 PMCID: PMC6650774 DOI: 10.1021/acs.chemrev.8b00038] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Biomolecular assembly is a key driving force in nearly all life processes, providing structure, information storage, and communication within cells and at the whole organism level. These assembly processes rely on precise interactions between functional groups on nucleic acids, proteins, carbohydrates, and small molecules, and can be fine-tuned to span a range of time, length, and complexity scales. Recognizing the power of these motifs, researchers have sought to emulate and engineer biomolecular assemblies in the laboratory, with goals ranging from modulating cellular function to the creation of new polymeric materials. In most cases, engineering efforts are inspired or informed by understanding the structure and properties of naturally occurring assemblies, which has in turn fueled the development of predictive models that enable computational design of novel assemblies. This Review will focus on selected examples of protein assemblies, highlighting the story arc from initial discovery of an assembly, through initial engineering attempts, toward the ultimate goal of predictive design. The aim of this Review is to highlight areas where significant progress has been made, as well as to outline remaining challenges, as solving these challenges will be the key that unlocks the full power of biomolecules for advances in technology and medicine.
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Affiliation(s)
- Corey J. Wilson
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Andreas S. Bommarius
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Julie A. Champion
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Yury O. Chernoff
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Laboratory of Amyloid Biology & Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg 199034, Russia
| | - David G. Lynn
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Anant K. Paravastu
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Chen Liang
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Ming-Chien Hsieh
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Jennifer M. Heemstra
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
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22
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Fiedler JD, Fishman MR, Brown SD, Lau J, Finn MG. Multifunctional Enzyme Packaging and Catalysis in the Qβ Protein Nanoparticle. Biomacromolecules 2018; 19:3945-3957. [DOI: 10.1021/acs.biomac.8b00885] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jason D. Fiedler
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Maxwell R. Fishman
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Steven D. Brown
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Jolene Lau
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - M. G. Finn
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
- School of Chemistry and Biochemistry, School of Biological Sciences, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332, United States
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23
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Rampoldi A, Crooke SN, Preininger MK, Jha R, Maxwell J, Ding L, Spearman P, Finn MG, Xu C. Targeted Elimination of Tumorigenic Human Pluripotent Stem Cells Using Suicide-Inducing Virus-like Particles. ACS Chem Biol 2018; 13:2329-2338. [PMID: 29979576 DOI: 10.1021/acschembio.8b00490] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Sensitization to prodrugs via transgenic expression of suicide genes is a leading strategy for the selective elimination of potentially tumorigenic human pluripotent stem cells (hPSCs) in regenerative medicine, but transgenic modification poses safety risks such as deleterious mutagenesis. We describe here an alternative method of delivering suicide-inducing molecules explicitly to hPSCs using virus-like particles (VLPs) and demonstrate its use in eliminating undifferentiated hPSCs in vitro. VLPs were engineered from Qβ bacteriophage capsids to contain enhanced green fluorescent protein (EGFP) or cytosine deaminase (CD) and to simultaneously display multiple IgG-binding ZZ domains. After labeling with antibodies against the hPSC-specific surface glycan SSEA-5, EGFP-containing particles were shown to specifically bind undifferentiated cells in culture, and CD-containing particles were able to eliminate undifferentiated hPSCs with virtually no cytotoxicity to differentiated cells upon treatment with the prodrug 5-fluorocytosine.
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Affiliation(s)
- Antonio Rampoldi
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Georgia 30322, United States
| | - Stephen N. Crooke
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30318, United States
| | - Marcela K. Preininger
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Georgia 30322, United States
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
| | - Rajneesh Jha
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Georgia 30322, United States
| | - Joshua Maxwell
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Georgia 30322, United States
| | - Lingmei Ding
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Georgia 30322, United States
| | - Paul Spearman
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Georgia 30322, United States
| | - M. G. Finn
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30318, United States
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Chunhui Xu
- Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Georgia 30322, United States
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
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24
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Diaz D, Care A, Sunna A. Bioengineering Strategies for Protein-Based Nanoparticles. Genes (Basel) 2018; 9:E370. [PMID: 30041491 PMCID: PMC6071185 DOI: 10.3390/genes9070370] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 07/16/2018] [Accepted: 07/17/2018] [Indexed: 12/16/2022] Open
Abstract
In recent years, the practical application of protein-based nanoparticles (PNPs) has expanded rapidly into areas like drug delivery, vaccine development, and biocatalysis. PNPs possess unique features that make them attractive as potential platforms for a variety of nanobiotechnological applications. They self-assemble from multiple protein subunits into hollow monodisperse structures; they are highly stable, biocompatible, and biodegradable; and their external components and encapsulation properties can be readily manipulated by chemical or genetic strategies. Moreover, their complex and perfect symmetry have motivated researchers to mimic their properties in order to create de novo protein assemblies. This review focuses on recent advances in the bioengineering and bioconjugation of PNPs and the implementation of synthetic biology concepts to exploit and enhance PNP's intrinsic properties and to impart them with novel functionalities.
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Affiliation(s)
- Dennis Diaz
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia.
| | - Andrew Care
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia.
- Australian Research Council Centre of Excellence for Nanoscale BioPhotonics, Macquarie University, Sydney, NSW 2109, Australia.
| | - Anwar Sunna
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia.
- Australian Research Council Centre of Excellence for Nanoscale BioPhotonics, Macquarie University, Sydney, NSW 2109, Australia.
- Biomolecular Discovery and Design Research Centre, Macquarie University, Sydney, NSW 2109, Australia.
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26
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Empty Turnip yellow mosaic virus capsids as delivery vehicles to mammalian cells. Virus Res 2018; 252:13-21. [DOI: 10.1016/j.virusres.2018.05.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/26/2018] [Accepted: 05/02/2018] [Indexed: 11/19/2022]
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27
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Lee H, Benjamin CE, Nowak CM, Tuong LH, Welch RP, Chen Z, Dharmarwardana M, Murray KW, Bleris L, D'Arcy S, Gassensmith JJ. Regulating the Uptake of Viral Nanoparticles in Macrophage and Cancer Cells via a pH Switch. Mol Pharm 2018; 15:2984-2990. [PMID: 29787282 DOI: 10.1021/acs.molpharmaceut.8b00348] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Controlling the uptake of nanomaterials into phagocytes is a challenging problem. We describe an approach to inhibit the cellular uptake by macrophages and HeLa cells of nanoparticles derived from bacteriophage Qβ by conjugating negatively charged terminal hexanoic acid moieties onto its surface. Additionally, we show hydrazone linkers can be installed between the surface of Qβ and the terminal hexanoic acid moieties, resulting in a pH-responsive conjugate that, in acidic conditions, can release the terminal hexanoic acid moiety and allow for the uptake of the Qβ nanoparticle. The installation of the "pH switch" did not change the structure-function properties of the hexanoic acid moiety and the uptake of the Qβ conjugates by macrophages.
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Abstract
Within the materials science community, proteins with cage-like architectures are being developed as versatile nanoscale platforms for use in protein nanotechnology. Much effort has been focused on the functionalization of protein cages with biological and non-biological moieties to bring about new properties of not only individual protein cages, but collective bulk-scale assemblies of protein cages. In this review, we report on the current understanding of protein cage assembly, both of the cages themselves from individual subunits, and the assembly of the individual protein cages into higher order structures. We start by discussing the key properties of natural protein cages (for example: size, shape and structure) followed by a review of some of the mechanisms of protein cage assembly and the factors that influence it. We then explore the current approaches for functionalizing protein cages, on the interior or exterior surfaces of the capsids. Lastly, we explore the emerging area of higher order assemblies created from individual protein cages and their potential for new and exciting collective properties.
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Affiliation(s)
- William M Aumiller
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, USA.
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Petrescu DS, Blum AS. Viral-based nanomaterials for plasmonic and photonic materials and devices. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2018; 10:e1508. [PMID: 29418076 DOI: 10.1002/wnan.1508] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 10/18/2017] [Accepted: 12/19/2017] [Indexed: 11/09/2022]
Abstract
Over the last decade, viruses have established themselves as a powerful tool in nanotechnology. Their proteinaceous capsids benefit from biocompatibility, chemical addressability, and a variety of sizes and geometries, while their ability to encapsulate, scaffold, and self-assemble enables their use for a wide array of purposes. Moreover, the scaling up of viral-based nanotechnologies is facilitated by high capsid production yield and speed, which is particularly advantageous when compared with slower and costlier lithographic techniques. These features enable the bottom-up fabrication of photonic and plasmonic materials, which relies on the precise arrangement of photoactive material at the nanoscale to control phenomena such as electromagnetic wave propagation and energy transfer. The interdisciplinary approach required for the fabrication of such materials combines techniques from the life sciences and device engineering, thus promoting innovative research. Materials with applications spanning the fields of sensing (biological, chemical, and physical sensors), nanomedicine (cellular imaging, drug delivery, phototherapy), energy transfer and conversion (solar cells, light harvesting, photocatalysis), metamaterials (negative refraction, artificial magnetism, near-field amplification), and nanoparticle synthesis are considered with exclusive emphasis on viral capsids and protein cages. This article is categorized under: Biology-Inspired Nanomaterials > Protein and Virus-Based Structures.
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Matsuura K. Synthetic approaches to construct viral capsid-like spherical nanomaterials. Chem Commun (Camb) 2018; 54:8944-8959. [DOI: 10.1039/c8cc03844a] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This feature article describes recent progress in synthetic strategies to construct viral capsid-like spherical nanomaterials using the self-assembly of peptides and/or proteins.
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Affiliation(s)
- Kazunori Matsuura
- Department of Chemistry and Biotechnology
- Graduate School of Engineering
- Tottori University
- Tottori 680-8552
- Japan
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Chen Z, Boyd SD, Calvo JS, Murray KW, Mejia GL, Benjamin CE, Welch RP, Winkler DD, Meloni G, D'Arcy S, Gassensmith JJ. Fluorescent Functionalization across Quaternary Structure in a Virus-like Particle. Bioconjug Chem 2017; 28:2277-2283. [PMID: 28787574 DOI: 10.1021/acs.bioconjchem.7b00305] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Proteinaceous nanomaterials and, in particular, virus-like particles (VLPs) have emerged as robust and uniform platforms that are seeing wider use in biomedical research. However, there are a limited number of bioconjugation reactions for functionalizing the capsids, and very few of those involve functionalization across the supramolecular quaternary structure of protein assemblies. In this work, we exploit the recently described dibromomaleimide moiety as part of a bioconjugation strategy on VLP Qβ to break and rebridge the exposed and structurally important disulfides in good yields. Not only was the stability of the quaternary structure retained after the reaction, but the newly functionalized particles also became brightly fluorescent and could be tracked in vitro using a commercially available filter set. Consequently, we show that this highly efficient bioconjugation reaction not only introduces a new functional handle "between" the disulfides of VLPs without compromising their thermal stability but also can be used to create a fluorescent probe.
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Affiliation(s)
- Zhuo Chen
- Department of Chemistry and Biochemistry, ‡Department of Biological Sciences, and §School of Behavioral and Brain Sciences, University of Texas at Dallas , Richardson, Texas 75080, United States
| | - Stefanie D Boyd
- Department of Chemistry and Biochemistry, ‡Department of Biological Sciences, and §School of Behavioral and Brain Sciences, University of Texas at Dallas , Richardson, Texas 75080, United States
| | - Jenifer S Calvo
- Department of Chemistry and Biochemistry, ‡Department of Biological Sciences, and §School of Behavioral and Brain Sciences, University of Texas at Dallas , Richardson, Texas 75080, United States
| | - Kyle W Murray
- Department of Chemistry and Biochemistry, ‡Department of Biological Sciences, and §School of Behavioral and Brain Sciences, University of Texas at Dallas , Richardson, Texas 75080, United States
| | - Galo L Mejia
- Department of Chemistry and Biochemistry, ‡Department of Biological Sciences, and §School of Behavioral and Brain Sciences, University of Texas at Dallas , Richardson, Texas 75080, United States
| | - Candace E Benjamin
- Department of Chemistry and Biochemistry, ‡Department of Biological Sciences, and §School of Behavioral and Brain Sciences, University of Texas at Dallas , Richardson, Texas 75080, United States
| | - Raymond P Welch
- Department of Chemistry and Biochemistry, ‡Department of Biological Sciences, and §School of Behavioral and Brain Sciences, University of Texas at Dallas , Richardson, Texas 75080, United States
| | - Duane D Winkler
- Department of Chemistry and Biochemistry, ‡Department of Biological Sciences, and §School of Behavioral and Brain Sciences, University of Texas at Dallas , Richardson, Texas 75080, United States
| | - Gabriele Meloni
- Department of Chemistry and Biochemistry, ‡Department of Biological Sciences, and §School of Behavioral and Brain Sciences, University of Texas at Dallas , Richardson, Texas 75080, United States
| | - Sheena D'Arcy
- Department of Chemistry and Biochemistry, ‡Department of Biological Sciences, and §School of Behavioral and Brain Sciences, University of Texas at Dallas , Richardson, Texas 75080, United States
| | - Jeremiah J Gassensmith
- Department of Chemistry and Biochemistry, ‡Department of Biological Sciences, and §School of Behavioral and Brain Sciences, University of Texas at Dallas , Richardson, Texas 75080, United States
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Sharma J, Uchida M, Miettinen HM, Douglas T. Modular interior loading and exterior decoration of a virus-like particle. NANOSCALE 2017; 9:10420-10430. [PMID: 28702648 PMCID: PMC6482854 DOI: 10.1039/c7nr03018e] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Virus-like particles (VLPs) derived from the bacteriophage P22 offer an interesting and malleable platform for encapsulation and multivalent presentation of cargo molecules. The packaging of cargo in P22 VLP is typically achieved through genetically enabled directed in vivo encapsulation. However, this approach does not allow control over the packing density and composition of the encapsulated cargos. Here, we have adopted an in vitro assembly approach to gain control over cargo packaging in P22. The packaging was controlled by closely regulating the stoichiometric ratio of cargo-fused-scaffold protein and wild-type scaffold protein during the in vitro assembly. In a "one-pot assembly reaction" coat protein subunits were incubated with varied ratios of wild-type scaffold protein and cargo-fused-scaffold protein, which resulted in the encapsulation of both components in a co-assembled capsid. These experiments demonstrate that an input stoichiometry can be used to achieve controlled packaging of multiple cargos within the VLP. The porous nature of P22 allows the escape and re-entry of wild-type scaffold protein from the assembled capsid but scaffold protein fused to a protein-cargo cannot traverse the capsid shell due to the size of the cargo. This has allowed us to control and alter the packing density by selectively releasing wild-type scaffold protein from the co-assembled capsids. We have demonstrated these concepts in the P22 system using an encapsulated streptavidin protein and have shown its highly selective interaction with biotin or biotin derivatives. Additionally, this system can be used to encapsulate small molecules coupled to biotin, or display large proteins, that cannot enter the capsid and thus remain available for the multivalent display on the exterior of the capsid when attached to a flexible biotinylated linker. Thus, we have developed a P22 system with controlled protein cargo composition and packing density, to which both small and large molecules can be attached at high copy number on the interior or exterior of the capsid.
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Affiliation(s)
- Jhanvi Sharma
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, USA.
| | - Masaki Uchida
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, USA.
| | - Heini M Miettinen
- Department of Microbiology & Immunology, Montana State University, PO Box 173520, Bozeman, Montana 59717, USA
| | - Trevor Douglas
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, USA.
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Nolles A, Westphal AH, Kleijn JM, van Berkel WJH, Borst JW. Colorful Packages: Encapsulation of Fluorescent Proteins in Complex Coacervate Core Micelles. Int J Mol Sci 2017; 18:ijms18071557. [PMID: 28753915 PMCID: PMC5536045 DOI: 10.3390/ijms18071557] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 06/30/2017] [Accepted: 07/13/2017] [Indexed: 12/02/2022] Open
Abstract
Encapsulation of proteins can be beneficial for food and biomedical applications. To study their biophysical properties in complex coacervate core micelles (C3Ms), we previously encapsulated enhanced green fluorescent protein (EGFP) and its monomeric variant, mEGFP, with the cationic-neutral diblock copolymer poly(2-methyl-vinyl-pyridinium)n-b-poly(ethylene-oxide)m (P2MVPn-b-PEOm) as enveloping material. C3Ms with high packaging densities of fluorescent proteins (FPs) were obtained, resulting in a restricted orientational freedom of the protein molecules, influencing their structural and spectral properties. To address the generality of this behavior, we encapsulated seven FPs with P2MVP41-b-PEO205 and P2MVP128-b-PEO477. Dynamic light scattering and fluorescence correlation spectroscopy showed lower encapsulation efficiencies for members of the Anthozoa class (anFPs) than for Hydrozoa FPs derived from Aequorea victoria (avFPs). Far-UV CD spectra of the free FPs showed remarkable differences between avFPs and anFPs, caused by rounder barrel structures for avFPs and more elliptic ones for anFPs. These structural differences, along with the differences in charge distribution, might explain the variations in encapsulation efficiency between avFPs and anFPs. Furthermore, the avFPs remain monomeric in C3Ms with minor spectral and structural changes. In contrast, the encapsulation of anFPs gives rise to decreased quantum yields (monomeric Kusabira Orange 2 (mKO2) and Tag red fluorescent protein (TagRFP)) or to a pKa shift of the chromophore (FP variant mCherry).
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Affiliation(s)
- Antsje Nolles
- Laboratory of Biochemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands.
- Physical Chemistry and Soft Matter, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands.
| | - Adrie H Westphal
- Laboratory of Biochemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands.
- MicroSpectroscopy Centre Wageningen, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands.
| | - J Mieke Kleijn
- Physical Chemistry and Soft Matter, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands.
| | - Willem J H van Berkel
- Laboratory of Biochemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands.
| | - Jan Willem Borst
- Laboratory of Biochemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands.
- MicroSpectroscopy Centre Wageningen, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands.
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Brillault L, Jutras PV, Dashti N, Thuenemann EC, Morgan G, Lomonossoff GP, Landsberg MJ, Sainsbury F. Engineering Recombinant Virus-like Nanoparticles from Plants for Cellular Delivery. ACS NANO 2017; 11:3476-3484. [PMID: 28198180 DOI: 10.1021/acsnano.6b07747] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Understanding capsid assembly following recombinant expression of viral structural proteins is critical to the design and modification of virus-like nanoparticles for biomedical and nanotechnology applications. Here, we use plant-based transient expression of the Bluetongue virus (BTV) structural proteins, VP3 and VP7, to obtain high yields of empty and green fluorescent protein (GFP)-encapsidating core-like particles (CLPs) from leaves. Single-particle cryo-electron microscopy of both types of particles revealed considerable differences in CLP structure compared to the crystal structure of infection-derived CLPs; in contrast, the two recombinant CLPs have an identical external structure. Using this insight, we exploited the unencumbered pore at the 5-fold axis of symmetry and the absence of encapsidated RNA to label the interior of empty CLPs with a fluorescent bioconjugate. CLPs containing 120 GFP molecules and those containing approximately 150 dye molecules were both shown to bind human integrin via a naturally occurring Arg-Gly-Asp motif found on an exposed loop of the VP7 trimeric spike. Furthermore, fluorescently labeled CLPs were shown to interact with a cell line overexpressing the surface receptor. Thus, BTV CLPs present themselves as a useful tool in targeted cargo delivery. These results highlight the importance of detailed structural analysis of VNPs in validating their molecular organization and the value of such analyses in aiding their design and further modification.
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Affiliation(s)
| | | | | | - Eva C Thuenemann
- Department of Biological Chemistry, John Innes Centre , Norwich Research Park, Colney, Norfolk NR4 7UH, United Kingdom
| | | | - George P Lomonossoff
- Department of Biological Chemistry, John Innes Centre , Norwich Research Park, Colney, Norfolk NR4 7UH, United Kingdom
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Rohovie MJ, Nagasawa M, Swartz JR. Virus-like particles: Next-generation nanoparticles for targeted therapeutic delivery. Bioeng Transl Med 2017; 2:43-57. [PMID: 29313023 PMCID: PMC5689521 DOI: 10.1002/btm2.10049] [Citation(s) in RCA: 213] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 11/23/2016] [Accepted: 11/30/2016] [Indexed: 12/12/2022] Open
Abstract
Most drug therapies distribute the agents throughout the entire body, even though the drugs are typically only needed at specific tissues. This often limits dosage and causes discomfort and harmful side‐effects. Significant research has examined nanoparticles (NPs) for use as targeted delivery vehicles for therapeutic cargo, however, major clinical success has been limited. Current work focuses mainly on liposomal and polymer‐based NPs, but emerging research is exploring the engineering of viral capsids as noninfectious protein‐based NPs—termed virus‐like particles (VLPs). This review covers the research that has been performed thus far and outlines the potential for these VLPs to become highly effective delivery vehicles that overcome the many challenges encountered for targeted delivery of therapeutic cargo.
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Affiliation(s)
- Marcus J Rohovie
- Dept. of Chemical Engineering Stanford University Stanford CA 94305
| | - Maya Nagasawa
- Dept. of Bioengineering Stanford University Stanford CA 94305
| | - James R Swartz
- Dept. of Chemical Engineering Stanford University Stanford CA 94305.,Dept. of Bioengineering Stanford University Stanford CA 94305
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36
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Belval L, Hemmer C, Sauter C, Reinbold C, Fauny J, Berthold F, Ackerer L, Schmitt‐Keichinger C, Lemaire O, Demangeat G, Ritzenthaler C. Display of whole proteins on inner and outer surfaces of grapevine fanleaf virus-like particles. PLANT BIOTECHNOLOGY JOURNAL 2016; 14:2288-2299. [PMID: 27178344 PMCID: PMC5103221 DOI: 10.1111/pbi.12582] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 05/02/2016] [Accepted: 05/10/2016] [Indexed: 06/05/2023]
Abstract
Virus-like particles (VLPs) derived from nonenveloped viruses result from the self-assembly of capsid proteins (CPs). They generally show similar structural features to viral particles but are noninfectious and their inner cavity and outer surface can potentially be adapted to serve as nanocarriers of great biotechnological interest. While a VLP outer surface is generally amenable to chemical or genetic modifications, encaging a cargo within particles can be more complex and is often limited to small molecules or peptides. Examples where both inner cavity and outer surface have been used to simultaneously encapsulate and expose entire proteins remain scarce. Here, we describe the production of spherical VLPs exposing fluorescent proteins at either their outer surface or inner cavity as a result of the self-assembly of a single genetically modified viral structural protein, the CP of grapevine fanleaf virus (GFLV). We found that the N- and C-terminal ends of the GFLV CP allow the genetic fusion of proteins as large as 27 kDa and the plant-based production of nucleic acid-free VLPs. Remarkably, expression of N- or C-terminal CP fusions resulted in the production of VLPs with recombinant proteins exposed to either the inner cavity or the outer surface, respectively, while coexpression of both fusion proteins led to the formation hybrid VLP, although rather inefficiently. Such properties are rather unique for a single viral structural protein and open new potential avenues for the design of safe and versatile nanocarriers, particularly for the targeted delivery of bioactive molecules.
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Affiliation(s)
- Lorène Belval
- SVQVINRAUniversité de StrasbourgColmarFrance
- Institut de Biologie Moléculaire des Plantes CNRS‐UPR 2357associée à l'Université de StrasbourgCNRSStrasbourgFrance
| | - Caroline Hemmer
- SVQVINRAUniversité de StrasbourgColmarFrance
- Institut de Biologie Moléculaire des Plantes CNRS‐UPR 2357associée à l'Université de StrasbourgCNRSStrasbourgFrance
| | - Claude Sauter
- Institut de Biologie Moléculaire et Cellulaire du CNRSUPR 9002Architecture et Réactivité de l'ARNUniversité de StrasbourgStrasbourgFrance
| | | | - Jean‐Daniel Fauny
- Institut de Biologie Moléculaire et Cellulaire du CNRSUPR 9002Architecture et Réactivité de l'ARNUniversité de StrasbourgStrasbourgFrance
| | - François Berthold
- Institut de Biologie Moléculaire des Plantes CNRS‐UPR 2357associée à l'Université de StrasbourgCNRSStrasbourgFrance
| | - Léa Ackerer
- SVQVINRAUniversité de StrasbourgColmarFrance
- Institut de Biologie Moléculaire des Plantes CNRS‐UPR 2357associée à l'Université de StrasbourgCNRSStrasbourgFrance
- Institut Français de la Vigne et du VinDomaine de l'EspiguetteLe Grau‐du‐RoiFrance
| | - Corinne Schmitt‐Keichinger
- Institut de Biologie Moléculaire des Plantes CNRS‐UPR 2357associée à l'Université de StrasbourgCNRSStrasbourgFrance
| | | | | | - Christophe Ritzenthaler
- Institut de Biologie Moléculaire des Plantes CNRS‐UPR 2357associée à l'Université de StrasbourgCNRSStrasbourgFrance
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Bioengineered protein-based nanocage for drug delivery. Adv Drug Deliv Rev 2016; 106:157-171. [PMID: 26994591 DOI: 10.1016/j.addr.2016.03.002] [Citation(s) in RCA: 163] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 03/01/2016] [Accepted: 03/08/2016] [Indexed: 01/01/2023]
Abstract
Nature, in its wonders, presents and assembles the most intricate and delicate protein structures and this remarkable phenomenon occurs in all kingdom and phyla of life. Of these proteins, cage-like multimeric proteins provide spatial control to biological processes and also compartmentalizes compounds that may be toxic or unstable and avoids their contact with the environment. Protein-based nanocages are of particular interest because of their potential applicability as drug delivery carriers and their perfect and complex symmetry and ideal physical properties, which have stimulated researchers to engineer, modify or mimic these qualities. This article reviews various existing types of protein-based nanocages that are used for therapeutic purposes, and outlines their drug-loading mechanisms and bioengineering strategies via genetic and chemical functionalization. Through a critical evaluation of recent advances in protein nanocage-based drug delivery in vitro and in vivo, an outlook for de novo and in silico nanocage design, and also protein-based nanocage preclinical and future clinical applications will be presented.
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38
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Pumpens P, Renhofa R, Dishlers A, Kozlovska T, Ose V, Pushko P, Tars K, Grens E, Bachmann MF. The True Story and Advantages of RNA Phage Capsids as Nanotools. Intervirology 2016; 59:74-110. [DOI: 10.1159/000449503] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 08/30/2016] [Indexed: 11/19/2022] Open
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Protein Nanoparticles as Multifunctional Biocatalysts and Health Assessment Sensors. Curr Opin Chem Eng 2016; 13:109-118. [PMID: 30370212 DOI: 10.1016/j.coche.2016.08.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The use of protein nanoparticles for biosensing, biocatalysis and drug delivery has exploded in the last few years. The ability of protein nanoparticles to self-assemble into predictable, monodisperse structures is of tremendous value. The unique properties of protein nanoparticles such as high stability, and biocompatibility, along with the potential to modify them led to development of novel bioengineering tools. Together, the ability to control the interior loading and external functionalities of protein nanoparticles makes them intriguing nanodevices. This review will focus on a number of recent examples of protein nanoparticles that have been engineered towards imparting the particles with biocatalytic or biosensing functionality.
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40
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Perlmutter JD, Mohajerani F, Hagan MF. Many-molecule encapsulation by an icosahedral shell. eLife 2016; 5. [PMID: 27166515 PMCID: PMC4947392 DOI: 10.7554/elife.14078] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Accepted: 05/10/2016] [Indexed: 12/31/2022] Open
Abstract
We computationally study how an icosahedral shell assembles around hundreds of molecules. Such a process occurs during the formation of the carboxysome, a bacterial microcompartment that assembles around many copies of the enzymes ribulose 1,5-bisphosphate carboxylase/ oxygenase and carbonic anhydrase to facilitate carbon fixation in cyanobacteria. Our simulations identify two classes of assembly pathways leading to encapsulation of many-molecule cargoes. In one, shell assembly proceeds concomitantly with cargo condensation. In the other, the cargo first forms a dense globule; then, shell proteins assemble around and bud from the condensed cargo complex. Although the model is simplified, the simulations predict intermediates and closure mechanisms not accessible in experiments, and show how assembly can be tuned between these two pathways by modulating protein interactions. In addition to elucidating assembly pathways and critical control parameters for microcompartment assembly, our results may guide the reengineering of viruses as nanoreactors that self-assemble around their reactants. DOI:http://dx.doi.org/10.7554/eLife.14078.001 Bacterial microcompartments are protein shells that are found inside bacteria and enclose enzymes and other chemicals required for certain biological reactions. For example, the carboxysome is a type of microcompartment that enables the bacteria to convert the products of photosynthesis into sugars. During the formation of a microcompartment, the outer protein shell assembles around hundreds of enzymes and chemicals. This formation process is tightly controlled and involves multiple interactions between the shell proteins and the cargo – the enzymes and other reaction ingredients – they will enclose. Understanding how to control which enzymes are encapsulated within microcompartments could help researchers to re-engineer the microcompartments so that they contain drugs or other useful products. Recent studies have used microscopy to visualize how microcompartments are assembled. However, most of the intermediate structures that form during assembly are too small and short-lived to be seen. It has therefore not been possible to explore in detail how shell proteins collect the necessary cargo and then assemble into an ordered shell with the cargo on the inside. Experiments alone are probably not enough to understand the process, especially since microcompartment assembly can currently only be studied within live cells or cellular extract. Within these complex environments it is difficult to determine the effect of any individual factor on the overall assembly process. Perlmutter, Mohajerani and Hagan have now taken a different approach by developing computational and theoretical models to explore how microcompartments assemble. Computer simulations showed that microcompartments could assemble by two pathways. In one pathway, the protein shell and cargo coalesce at the same time. In the other pathway, the cargo molecules first assemble into a large disordered complex, with the shell proteins attached on the outside. The shell proteins then assemble, carving out a piece of the cargo complex. The simulations showed that many factors affect how the shell assembles, such as the strengths of the interactions between the shell proteins and the cargo. They also identified a factor that controls how much cargo ends up inside the assembled shell. Perlmutter, Mohajerani and Hagan found that, in addition to revealing how microcompartments may assemble within their natural setting, the simulations provided guidance on how to re-engineer microcompartments to assemble around other components. This would enable researchers to create customizable compartments that self-assemble within bacteria or other host organisms, for example to carry out carbon fixation or make biofuels. A future challenge will be to investigate other aspects of microcompartment assembly, such as the factors that control the size of these compartments. DOI:http://dx.doi.org/10.7554/eLife.14078.002
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Affiliation(s)
- Jason D Perlmutter
- Martin Fisher School of Physics, Brandeis University, Waltham, United States
| | - Farzaneh Mohajerani
- Martin Fisher School of Physics, Brandeis University, Waltham, United States
| | - Michael F Hagan
- Martin Fisher School of Physics, Brandeis University, Waltham, United States
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41
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Synthetic scaffolds for pathway enhancement. Curr Opin Biotechnol 2015; 36:98-106. [DOI: 10.1016/j.copbio.2015.08.009] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 07/31/2015] [Accepted: 08/09/2015] [Indexed: 12/11/2022]
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42
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Encapsulation as a Strategy for the Design of Biological Compartmentalization. J Mol Biol 2015; 428:916-27. [PMID: 26403362 DOI: 10.1016/j.jmb.2015.09.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 08/16/2015] [Accepted: 09/03/2015] [Indexed: 02/06/2023]
Abstract
Compartmentalization is one of the defining features of life. Through intracellular spatial control, cells are able to organize and regulate their metabolism. One of the most broadly used organizational principles in nature is encapsulation. Cellular processes can be encapsulated within either membrane-bound organelles or proteinaceous compartments that create distinct microenvironments optimized for a given task. Further challenges addressed through intracellular compartmentalization are toxic or volatile pathway intermediates, slow turnover rates and competing side reactions. This review highlights a selection of naturally occurring membrane- and protein-based encapsulation systems in microbes and their recent applications and emerging opportunities in synthetic biology. We focus on examples that use engineered cellular organization to control metabolic pathway flux for the production of useful compounds and materials.
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Gleaton J, Chmielewski J. Thermally Controlled Collagen Peptide Cages for Biopolymer Delivery. ACS Biomater Sci Eng 2015; 1:1002-1008. [PMID: 33429531 DOI: 10.1021/acsbiomaterials.5b00241] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jeremy Gleaton
- Department of Chemistry, Purdue University, 560 Oval
Drive, West Lafayette, Indiana 47907, United States
| | - Jean Chmielewski
- Department of Chemistry, Purdue University, 560 Oval
Drive, West Lafayette, Indiana 47907, United States
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Young KR, Arthus-Cartier G, Yam KK, Lavoie PO, Landry N, D'Aoust MA, Vézina LP, Couture MMJ, Ward BJ. Generation and characterization of a trackable plant-made influenza H5 virus-like particle (VLP) containing enhanced green fluorescent protein (eGFP). FASEB J 2015; 29:3817-27. [PMID: 26038124 DOI: 10.1096/fj.15-270421] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 05/18/2015] [Indexed: 12/17/2022]
Abstract
Medicago, Inc. has developed an efficient virus-like particle (VLP) vaccine production platform using the Nicotiana benthamiana expression system, and currently has influenza-based products targeting seasonal/pandemic hemagglutinin (HA) proteins in advanced clinical trials. We wished to generate a trackable HA-based VLP that would allow us to study both particle assembly in plants and VLP interactions within the mammalian immune system. To this end, a fusion protein was designed, composed of H5 (from influenza A/Indonesia/05/2005 [H5N1]) with enhanced green fluorescent protein (eGFP). Expression of H5-eGFP in N. benthamiana produced brightly fluorescent ∼160 nm particles resembling H5-VLPs. H5-eGFP-VLPs elicited anti-H5 serologic responses in mice comparable to those elicited by H5-VLPs in almost all assays tested (hemagglutination inhibition/IgG(total)/IgG1/IgG2b/IgG2a:IgG1 ratio), as well as a superior anti-GFP IgG response (mean optical density = 2.52 ± 0.16 sem) to that elicited by soluble GFP (mean optical density = 0.12 ± 0.06 sem). Confocal imaging of N. benthamiana cells expressing H5-eGFP displayed large fluorescent accumulations at the cell periphery, and draining lymph nodes from mice given H5-eGFP-VLPs via footpad injection demonstrated bright fluorescence shortly after administration (10 min), providing proof of concept that the H5-eGFP-protein/VLPs could be used to monitor both VLP assembly and immune trafficking. Given these findings, this novel fluorescent reagent will be a powerful tool to gain further fundamental insight into the biology of influenza VLP vaccines.
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Affiliation(s)
- Katie R Young
- *Research Institute of McGill University Health Centre and Department of Experimental Medicine, McGill University, Montréal, Québec, Canada; and Medicago, Incorporated, Québec, Québec, Canada
| | - Guillaume Arthus-Cartier
- *Research Institute of McGill University Health Centre and Department of Experimental Medicine, McGill University, Montréal, Québec, Canada; and Medicago, Incorporated, Québec, Québec, Canada
| | - Karen K Yam
- *Research Institute of McGill University Health Centre and Department of Experimental Medicine, McGill University, Montréal, Québec, Canada; and Medicago, Incorporated, Québec, Québec, Canada
| | - Pierre-Olivier Lavoie
- *Research Institute of McGill University Health Centre and Department of Experimental Medicine, McGill University, Montréal, Québec, Canada; and Medicago, Incorporated, Québec, Québec, Canada
| | - Nathalie Landry
- *Research Institute of McGill University Health Centre and Department of Experimental Medicine, McGill University, Montréal, Québec, Canada; and Medicago, Incorporated, Québec, Québec, Canada
| | - Marc-André D'Aoust
- *Research Institute of McGill University Health Centre and Department of Experimental Medicine, McGill University, Montréal, Québec, Canada; and Medicago, Incorporated, Québec, Québec, Canada
| | - Louis-Philippe Vézina
- *Research Institute of McGill University Health Centre and Department of Experimental Medicine, McGill University, Montréal, Québec, Canada; and Medicago, Incorporated, Québec, Québec, Canada
| | - Manon M-J Couture
- *Research Institute of McGill University Health Centre and Department of Experimental Medicine, McGill University, Montréal, Québec, Canada; and Medicago, Incorporated, Québec, Québec, Canada
| | - Brian J Ward
- *Research Institute of McGill University Health Centre and Department of Experimental Medicine, McGill University, Montréal, Québec, Canada; and Medicago, Incorporated, Québec, Québec, Canada
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Abstract
This review describes nanoparticles made from protein by self-assembly or desolvation as carriers for the delivery of therapeutic proteins.
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Affiliation(s)
- L. P. Herrera Estrada
- School of Chemical & Biomolecular Engineering. Georgia Institute of Technology
- Atlanta
- USA
| | - J. A. Champion
- School of Chemical & Biomolecular Engineering. Georgia Institute of Technology
- Atlanta
- USA
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46
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Machida K, Imataka H. Production methods for viral particles. Biotechnol Lett 2014; 37:753-60. [DOI: 10.1007/s10529-014-1741-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 11/20/2014] [Indexed: 12/11/2022]
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Patterson D, Edwards E, Douglas T. Hybrid Nanoreactors: Coupling Enzymes and Small-Molecule Catalysts within Virus-Like Particles. Isr J Chem 2014. [DOI: 10.1002/ijch.201400092] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Hovlid ML, Lau JL, Breitenkamp K, Higginson CJ, Laufer B, Manchester M, Finn MG. Encapsidated atom-transfer radical polymerization in Qβ virus-like nanoparticles. ACS NANO 2014; 8:8003-14. [PMID: 25073013 PMCID: PMC4148144 DOI: 10.1021/nn502043d] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Accepted: 07/16/2014] [Indexed: 04/14/2023]
Abstract
Virus-like particles (VLPs) are unique macromolecular structures that hold great promise in biomedical and biomaterial applications. The interior of the 30 nm-diameter Qβ VLP was functionalized by a three-step process: (1) hydrolytic removal of endogenously packaged RNA, (2) covalent attachment of initiator molecules to unnatural amino acid residues located on the interior capsid surface, and (3) atom-transfer radical polymerization of tertiary amine-bearing methacrylate monomers. The resulting polymer-containing particles were moderately expanded in size; however, biotin-derivatized polymer strands were only very weakly accessible to avidin, suggesting that most of the polymer was confined within the protein shell. The polymer-containing particles were also found to exhibit physical and chemical properties characteristic of positively charged nanostructures, including the ability to easily enter mammalian cells and deliver functional small interfering RNA.
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Affiliation(s)
- Marisa L. Hovlid
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Jolene L. Lau
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Kurt Breitenkamp
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Cody J. Higginson
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Burkhardt Laufer
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Marianne Manchester
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, California 92093, United States
| | - M. G. Finn
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, United States
- School of Chemistry and Biochemistry, School of Biology, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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Patterson DP, LaFrance B, Douglas T. Rescuing recombinant proteins by sequestration into the P22 VLP. Chem Commun (Camb) 2014; 49:10412-4. [PMID: 24079011 DOI: 10.1039/c3cc46517a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Here we report the use of a self-assembling protein cage to sequester and solubilize recombinant proteins which are usually trafficked to insoluble inclusion bodies. Our results suggest that protein cages can be used as novel vehicles to rescue and produce soluble proteins that are otherwise difficult to obtain using conventional methods.
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Affiliation(s)
- Dustin P Patterson
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717, USA
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50
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Tso DJ, Hendrix RW, Duda RL. Transient contacts on the exterior of the HK97 procapsid that are essential for capsid assembly. J Mol Biol 2014; 426:2112-29. [PMID: 24657766 DOI: 10.1016/j.jmb.2014.03.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 03/13/2014] [Accepted: 03/17/2014] [Indexed: 01/13/2023]
Abstract
The G-loop is a 10-residue glycine-rich loop that protrudes from the surface of the mature bacteriophage HK97 capsid at the C-terminal end of the long backbone helix of major capsid protein subunits. The G-loop is essential for assembly, is conserved in related capsid and encapsulin proteins, and plays its role during HK97 capsid assembly by making crucial contacts between the hill-like hexamers and pentamers in precursor proheads. These contacts are not preserved in the flattened capsomers of the mature capsid. Aspartate 231 in each of the ~400 G-loops interacts with lysine 178 of the E-loop (extended loop) of a subunit on an adjacent capsomer. Mutations disrupting this interaction prevented correct assembly and, in some cases, induced abnormal assembly into tubes, or small, incomplete capsids. Assembly remained defective when D231 and K178 were replaced with larger charged residues or when their positions were exchanged. Second-site suppressors of lethal mutants containing substitution D231L replaced the ionic interaction with new interactions between neutral and hydrophobic residues of about the same size: D231L/K178V, D231L/K178I, and D231L/K178N. We conclude that it is not the charge but the size and shape of the side chains of residues 178 and 231 that are important. These two residues control the geometry of contacts between the E-loop and the G-loop, which apparently must be precisely spaced and oriented for correct assembly to occur. We present a model for how the G-loop could control HK97 assembly and identify G-loop-like protrusions in other capsid proteins that may play analogous roles.
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Affiliation(s)
- Dan-ju Tso
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Roger W Hendrix
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Robert L Duda
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA.
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