1
|
Kim KJ, Kim G, Bae JH, Song JJ, Kim HS. A pH-Responsive Virus-Like Particle as a Protein Cage for a Targeted Delivery. Adv Healthc Mater 2024; 13:e2302656. [PMID: 37966427 DOI: 10.1002/adhm.202302656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 11/05/2023] [Indexed: 11/16/2023]
Abstract
A stimuli-responsive protein self-assembly offers promising utility as a protein nanocage for biotechnological and medical applications. Herein, the development of a virus-like particle (VLP) that undergoes a transition between assembly and disassembly under a neutral and acidic pH, respectively, for a targeted delivery is reported. The structure of the bacteriophage P22 coat protein is used for the computational design of coat subunits that self-assemble into a pH-responsive VLP. Subunit designs are generated through iterative computational cycles of histidine substitutions and evaluation of the interaction energies among the subunits under an acidic and neutral pH. The top subunit designs are tested and one that is assembled into a VLP showing the highest pH-dependent structural transition is selected. The cryo-EM structure of the VLP is determined, and the structural basis of a pH-triggered disassembly is delineated. The utility of the designed VLP is exemplified through the targeted delivery of a cytotoxic protein cargo into tumor cells in a pH-dependent manner. These results provide strategies for the development of self-assembling protein architectures with new functionality for diverse applications.
Collapse
Affiliation(s)
- Kwan-Jip Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejon, 34141, South Korea
| | - Gijeong Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejon, 34141, South Korea
| | - Jin-Ho Bae
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejon, 34141, South Korea
| | - Ji-Joon Song
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejon, 34141, South Korea
| | - Hak-Sung Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejon, 34141, South Korea
| |
Collapse
|
2
|
Hewagama ND, Uchida M, Wang Y, Kraj P, Lee B, Douglas T. Higher-Order VLP-Based Protein Macromolecular Framework Structures Assembled via Coiled-Coil Interactions. Biomacromolecules 2023; 24:3716-3728. [PMID: 37467146 DOI: 10.1021/acs.biomac.3c00410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
Hierarchical organization is one of the fundamental features observed in biological systems that allows for efficient and effective functioning. Virus-like particles (VLPs) are elegant examples of a hierarchically organized supramolecular structure, where many subunits are self-assembled to generate the functional cage-like architecture. Utilizing VLPs as building blocks to construct two- and three-dimensional (3D) higher-order structures is an emerging research area in developing functional biomimetic materials. VLPs derived from P22 bacteriophages can be repurposed as nanoreactors by encapsulating enzymes and modular units to build higher-order catalytic materials via several techniques. In this study, we have used coiled-coil peptide interactions to mediate the P22 interparticle assembly into a highly stable, amorphous protein macromolecular framework (PMF) material, where the assembly does not depend on the VLP morphology, a limitation observed in previously reported P22 PMF assemblies. Many encapsulated enzymes lose their optimum functionalities under the harsh conditions that are required for the P22 VLP morphology transitions. Therefore, the coiled-coil-based PMF provides a fitting and versatile platform for constructing functional higher-order catalytic materials compatible with sensitive enzymes. We have characterized the material properties of the PMF and utilized the disordered PMF to construct a biocatalytic 3D material performing single- and multistep catalysis.
Collapse
Affiliation(s)
- Nathasha D Hewagama
- Department of Chemistry, Indiana University, 800 E Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Masaki Uchida
- Department of Chemistry and Biochemistry, California State University, Fresno, California 93740, United States
| | - Yang Wang
- Department of Chemistry, Indiana University, 800 E Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Pawel Kraj
- Department of Chemistry, Indiana University, 800 E Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Byeongdu Lee
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Trevor Douglas
- Department of Chemistry, Indiana University, 800 E Kirkwood Avenue, Bloomington, Indiana 47405, United States
| |
Collapse
|
3
|
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: 0] [Impact Index Per Article: 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.
Collapse
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
| | | |
Collapse
|
4
|
González-Davis O, Villagrana-Escareño MV, Trujillo MA, Gama P, Chauhan K, Vazquez-Duhalt R. Virus-like nanoparticles as enzyme carriers for Enzyme Replacement Therapy (ERT). Virology 2023; 580:73-87. [PMID: 36791560 DOI: 10.1016/j.virol.2023.01.017] [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: 08/31/2022] [Revised: 01/20/2023] [Accepted: 01/30/2023] [Indexed: 02/09/2023]
Abstract
Enzyme replacement therapy (ERT) has been used to treat a few of the many existing diseases which are originated from the lack of, or low enzymatic activity. Exogenous enzymes are administered to contend with the enzymatic activity deficiency. Enzymatic nanoreactors based on the enzyme encapsulation inside of virus-like particles (VLPs) appear as an interesting alternative for ERT. VLPs are excellent delivery vehicles for therapeutic enzymes as they are biodegradable, uniformly organized, and porous nanostructures that transport and could protect the biocatalyst from the external environment without much affecting the bioactivity. Consequently, significant efforts have been made in the production processes of virus-based enzymatic nanoreactors and their functionalization, which are critically reviewed. The use of virus-based enzymatic nanoreactors for the treatment of lysosomal storage diseases such as Gaucher, Fabry, and Pompe diseases, as well as potential therapies for galactosemia, and Hurler and Hunter syndromes are discussed.
Collapse
Affiliation(s)
- Oscar González-Davis
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km 107 carretera, Tijuana-Ensenada, Baja California, 22860, Mexico
| | - Maria V Villagrana-Escareño
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km 107 carretera, Tijuana-Ensenada, Baja California, 22860, Mexico
| | - Mario A Trujillo
- School of Medicine, Universidad Xochicalco, Ensenada, Baja California, Mexico
| | - Pedro Gama
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km 107 carretera, Tijuana-Ensenada, Baja California, 22860, Mexico
| | - Kanchan Chauhan
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km 107 carretera, Tijuana-Ensenada, Baja California, 22860, Mexico
| | - Rafael Vazquez-Duhalt
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km 107 carretera, Tijuana-Ensenada, Baja California, 22860, Mexico.
| |
Collapse
|
5
|
Essus VA, Souza Júnior GSE, Nunes GHP, Oliveira JDS, de Faria BM, Romão LF, Cortines JR. Bacteriophage P22 Capsid as a Pluripotent Nanotechnology Tool. Viruses 2023; 15:516. [PMID: 36851730 PMCID: PMC9962691 DOI: 10.3390/v15020516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 02/15/2023] Open
Abstract
The Salmonella enterica bacteriophage P22 is one of the most promising models for the development of virus-like particle (VLP) nanocages. It possesses an icosahedral T = 7 capsid, assembled by the combination of two structural proteins: the coat protein (gp5) and the scaffold protein (gp8). The P22 capsid has the remarkable capability of undergoing structural transition into three morphologies with differing diameters and wall-pore sizes. These varied morphologies can be explored for the design of nanoplatforms, such as for the development of cargo internalization strategies. The capsid proteic nature allows for the extensive modification of its structure, enabling the addition of non-native structures to alter the VLP properties or confer them to diverse ends. Various molecules were added to the P22 VLP through genetic, chemical, and other means to both the capsid and the scaffold protein, permitting the encapsulation or the presentation of cargo. This allows the particle to be exploited for numerous purposes-for example, as a nanocarrier, nanoreactor, and vaccine model, among other applications. Therefore, the present review intends to give an overview of the literature on this amazing particle.
Collapse
Affiliation(s)
- Victor Alejandro Essus
- Laboratório de Virologia e Espectrometria de Massas (LAVEM), Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21590-902, Brazil
| | - Getúlio Silva e Souza Júnior
- Laboratório de Virologia e Espectrometria de Massas (LAVEM), Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21590-902, Brazil
| | - Gabriel Henrique Pereira Nunes
- Laboratório de Virologia e Espectrometria de Massas (LAVEM), Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21590-902, Brazil
| | - Juliana dos Santos Oliveira
- Laboratório de Virologia e Espectrometria de Massas (LAVEM), Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21590-902, Brazil
| | - Bruna Mafra de Faria
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, CCS, Bl. F026, Rio de Janeiro 21941-590, Brazil
| | - Luciana Ferreira Romão
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, CCS, Bl. F026, Rio de Janeiro 21941-590, Brazil
| | - Juliana Reis Cortines
- Laboratório de Virologia e Espectrometria de Massas (LAVEM), Departamento de Virologia, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21590-902, Brazil
| |
Collapse
|
6
|
Pathak AK, Bandyopadhyay T. Heat-induced transitions of an empty minute virus of mice capsid in explicit water: all-atom MD simulation. J Biomol Struct Dyn 2022; 40:11900-11913. [PMID: 34459706 DOI: 10.1080/07391102.2021.1969283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The capsid-like structure of the virus-based protein nanoparticles (NPs) can serve as bionanomaterials, with applications in biomedicines and nanotechnology. Release of packaged material from these nanocontainers is associated with subtle conformational changes of the NP structure, which in vitro, is readily accomplished by heating. Characterizing the structural changes as a function of temperature may provide fresh insights into nanomaterial/antiviral strategies. Here, we have calculated heat induced changes in the properties of an empty minute virus of mice particle using large-scale ≈ 3.0 × 106 all-atom molecular dynamics simulations. We focus on two heat induced structural changes of the NP, namely, dynamical transition (DT) and breathing transition (BT), both characterized by sudden and sharp change of measured parameters at temperatures, TDT and TBT, respectively. While DT is assessed by mean-square fluctuation of hydrogen atoms of the NP, BT is monitored through internal volume and permeation rate of water molecules through the NP. Both the transitions, resulting primarily from collective atomistic motion, are found to occur at temperatures widely separated from one another (TBT>TDT). The breathing motions, responsible for the translocation events of the packaged materials through the NP to kick off, are further probed by computing atomic resolution stresses from NVE simulations. Distribution of equilibrium atomistic stresses on the NP reveals a largely asymmetric nature and suggests structural breathing may actually represent large dynamic changes in the hotspot regions, far from the NP pores, which is in remarkable resemblance with recently conducted hydrogen-deuterium exchange coupled to mass spectrometry experiment. Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Arup Kumar Pathak
- Theoretical Chemistry Section, Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Mumbai, India
| | - Tusar Bandyopadhyay
- Theoretical Chemistry Section, Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Mumbai, India
| |
Collapse
|
7
|
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: 0] [Impact Index Per Article: 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.
Collapse
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.
| |
Collapse
|
8
|
Wu Y, Zhang Z, Wei Y, Qian Z, Wei X. Nanovaccines for cancer immunotherapy: Current knowledge and future perspectives. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.108098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
9
|
Uchida M, Brunk NE, Hewagama ND, Lee B, Prevelige PE, Jadhao V, Douglas T. Multilayered Ordered Protein Arrays Self-Assembled from a Mixed Population of Virus-like Particles. ACS NANO 2022; 16:7662-7673. [PMID: 35549153 DOI: 10.1021/acsnano.1c11272] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Biology shows many examples of spatially controlled assembly of cells and biomacromolecules into hierarchically organized structures, to which many of the complex biological functions are attributed. While such biological structures have inspired the design of synthetic materials, it is still a great challenge to control the spatial arrangement of individual building blocks when assembling multiple types of components into bulk materials. Here, we report self-assembly of multilayered, ordered protein arrays from mixed populations of virus-like particles (VLPs). We systematically tuned the magnitude of the surface charge of the VLPs via mutagenesis to prepare four different types of VLPs for mixing. A mixture of up to four types of VLPs selectively assembled into higher-order structures in the presence of oppositely charged dendrimers during a gradual lowering of the ionic strength of the solution. The assembly resulted in the formation of three-dimensional ordered VLP arrays with up to four distinct layers including a central core, with each layer comprising a single type of VLP. A coarse-grained computational model was developed and simulated using molecular dynamics to probe the formation of the multilayered, core-shell structure. Our findings establish a simple and versatile bottom-up strategy to synthesize multilayered, ordered materials by controlling the spatial arrangement of multiple types of nanoscale building blocks in a one-pot fabrication.
Collapse
Affiliation(s)
- Masaki Uchida
- Department of Chemistry and Biochemistry, California State University, Fresno, 2555 E. San Ramon Avenue, Fresno, California 93740, United States
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Nicholas E Brunk
- Intelligent Systems Engineering, Indiana University, 700 N. Woodlawn Avenue, Bloomington, Indiana 47408, United States
- Wolfram Research, 100 Trade Center Drive, Champaign, Illinois 61820, United States
- VeriSIM Life Inc., 1 Sansome Street, Suite 3500, San Francisco, California 94104, United States
| | - Nathasha D Hewagama
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Byeongdu Lee
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Peter E Prevelige
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
| | - Vikram Jadhao
- Intelligent Systems Engineering, Indiana University, 700 N. Woodlawn Avenue, Bloomington, Indiana 47408, United States
| | - Trevor Douglas
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| |
Collapse
|
10
|
Wang Y, Douglas T. Bioinspired Approaches to Self-Assembly of Virus-like Particles: From Molecules to Materials. Acc Chem Res 2022; 55:1349-1359. [PMID: 35507643 DOI: 10.1021/acs.accounts.2c00056] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
ConspectusWhen viewed through the lens of materials science, nature provides a vast library of hierarchically organized structures that serve as inspiration and raw materials for new synthetic materials. The structural organization of complex bioarchitectures with advanced functions arises from the association of building blocks and is strongly supported by ubiquitous mechanisms of self-assembly, where interactions among components result in spontaneous assembly into defined structures. Viruses are exemplary, where a capsid structure, often formed from the self-assembly of many individual protein subunits, serves as a vehicle for the transport and protection of the viral genome. Higher-order assemblies of viral particles are also found in nature with unexpected collective behaviors. When the infectious aspect of viruses is removed, the self-assembly of viral particles and their potential for hierarchical assembly become an inspiration for the design and construction of a new class of functional materials at a range of different length scales.Salmonella typhimurium bacteriophage P22 is a well-studied model for understanding viral self-assembly and the construction of virus-like particle (VLP)-based materials. The formation of cage-like P22 VLP structures results from scaffold protein (SP)-directed self-assembly of coat protein (CP) subunits into icosahedral capsids with encapsulation of SP inside the capsid. Employing the CP-SP interaction during self-assembly, the encapsulation of guest protein cargos inside P22 VLPs can be achieved with control over the composition and the number of guest cargos. The morphology of cargo-loaded VLPs can be altered, along with changes in both the physical properties of the capsid and the cargo-capsid interactions, by mimicking aspects of the infectious P22 viral maturation. The structure of the capsid differentiates the inside cavity from the outside environment and serves as a protecting layer for the encapsulated cargos. Pores in the capsid shell regulate molecular exchange between inside and outside, where small molecules can traverse the capsid freely while the diffusion of larger molecules is limited by the pores. The interior cavity of the P22 capsid can be packed with hundreds of copies of cargo proteins (especially enzymes), enforcing intermolecular proximity, making this an ideal model system in which to study enzymatic catalysis in crowded and confined environments. These aspects highlight the development of functional nanomaterials from individual P22 VLPs, through biomimetic design and self-assembly, resulting in fabrication of nanoreactors with controlled catalytic behaviors.Individual P22 VLPs have been used as building blocks for the self-assembly of higher-order structures. This relies on a balance between the intrinsic interparticle repulsion and a tunable interparticle attraction. The ordering of VLPs within three-dimensional assemblies is dependent on the balance between repulsive and attractive interactions: too strong an attraction results in kinetically trapped disordered structures, while decreasing the attraction can lead to more ordered arrays. These higher-order assemblies display collective behavior of high charge density beyond those of the individual VLPs.The development of synthetic nanomaterials based on P22 VLPs demonstrates how the potential for hierarchical self-assembly can be applied to other self-assembling capsid structures across multiple length scales toward future bioinspired functional materials.
Collapse
Affiliation(s)
- Yang Wang
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Trevor Douglas
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| |
Collapse
|
11
|
Szyszka TN, Jenner EN, Tasneem N, Lau YH. Molecular Display on Protein Nanocompartments: Design Strategies and Systems Applications. CHEMSYSTEMSCHEM 2021. [DOI: 10.1002/syst.202100025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Taylor N. Szyszka
- School of Chemistry The University of Sydney Eastern Ave Camperdown NSW 2006 Australia
- The University of Sydney Nano Institute Camperdown NSW 2006 Australia
| | - Eric N. Jenner
- School of Chemistry The University of Sydney Eastern Ave Camperdown NSW 2006 Australia
| | - Nuren Tasneem
- School of Chemistry The University of Sydney Eastern Ave Camperdown NSW 2006 Australia
| | - Yu Heng Lau
- School of Chemistry The University of Sydney Eastern Ave Camperdown NSW 2006 Australia
- The University of Sydney Nano Institute Camperdown NSW 2006 Australia
| |
Collapse
|
12
|
Li W, Jing Z, Wang S, Li Q, Xing Y, Shi H, Li S, Hong Z. P22 virus-like particles as an effective antigen delivery nanoplatform for cancer immunotherapy. Biomaterials 2021; 271:120726. [PMID: 33636548 DOI: 10.1016/j.biomaterials.2021.120726] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 02/09/2021] [Accepted: 02/15/2021] [Indexed: 12/11/2022]
Abstract
As a new strategy for cancer immunotherapy, therapeutic cancer vaccines have been greatly improved in recent years. However, addressing the needs to quickly and efficiently elicit a high-intensity immune response against neoantigen peptides, especially to induce an effective cytotoxic lymphocyte (CTL) reaction, remain challenges in this field. In this study, virus-like particles (VLPs) derived from the phage P22 were adopted to load peptide antigens on the surface, to test whether VLP technology can be used as a platform for efficient peptide antigen delivery by therapeutic cancer vaccines. The B and T epitopes (OVAB peptide and OVAT peptide) of ovalbumin (OVA) were used here as model antigens and fused individually at the C terminus of the coat protein (CP), which allowed display on the surface of P22 particles to form two types of vaccine particles (VLP-OVAB and VLP-OVAT). Subsequent experiments showed that VLP-OVAB induced an antibody titer against the peptide antigen as high as 5.0 × 105 and that VLP-OVAT induced highly effective cross-presentation and then strongly activated a T epitope-specific CTL response. Mouse tumor model experiments showed that VLP-OVAT could significantly inhibit tumor growth by increasing the proportions of CD4+ T cells, CD8+ T cells and effector memory T cells (TEM cells) and lowering the proportion of myeloid-derived suppressor cells (MDSCs) among tumor-infiltrating lymphocytes and splenocytes. Compared with other chemically synthesized nanomaterials, VLPs have obvious advantages as vaccine carriers due to their clear chemical composition, fixed spatial structure, excellent biocompatibility, and relatively high potential for clinical translation. Therefore, this platform may lay a solid foundation for the design and preparation of personalized therapeutic vaccines based on neoantigen peptides.
Collapse
Affiliation(s)
- Wenjing Li
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, PR China
| | - Zhe Jing
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, PR China
| | - Shuqing Wang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, PR China
| | - Qiyu Li
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, PR China
| | - Yutong Xing
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, PR China
| | - Haobo Shi
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, PR China
| | - Shuang Li
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, PR China.
| | - Zhangyong Hong
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, PR China.
| |
Collapse
|
13
|
Sharma J, Purohit R, Hallan V. Conformational behavior of coat protein in plants and association with coat protein-mediated resistance against TMV. Braz J Microbiol 2020; 51:893-908. [PMID: 31933177 PMCID: PMC7455624 DOI: 10.1007/s42770-020-00225-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 01/07/2020] [Indexed: 12/16/2022] Open
Abstract
Tobacco mosaic virus (TMV) coat protein (CP) self assembles in viral RNA deprived transgenic plants to form aggregates based on the physical conditions of the environment. Transgenic plants in which these aggregates are developed show resistance toward infection by TMV referred to as CP-MR. This phenomenon has been extensively used to protect transgenic plants against viral diseases. The mutants T42W and E50Q CP confer enhanced CP-MR as compared to the WT CP. The aggregates, when examined, show the presence of helical discs in the case of WT CP; on the other hand, mutants show the presence of highly stable non-helical long rods. These aggregates interfere with the accumulation of MP as well as with the disassembly of TMV in plant cells. Here, we explored an atomic level insight to the process of CP-MR through MD simulations. The subunit-subunit interactions were assessed with the help of MM-PBSA calculations. Moreover, classification of secondary structure elements of the protein also provided unambiguous information about the conformational changes occurring in the two chains, which indicated toward increased flexibility of the mutant protein and seconded the other results of simulations. Our finding indicates the essential structural changes caused by the mutation in CP subunits, which are critically responsible for CP-MR and provides an in silico insight into the effects of these transitions over CP-MR. These results could further be utilized to design TMV-CP-based small peptides that would be able to provide appropriate protection against TMV infection.
Collapse
Affiliation(s)
- Jatin Sharma
- Structural Bioinformatics Lab, CSIR-Institute of Himalayan Bioresource Technology (CSIR-IHBT), Palampur, HP, 176061, India
- Biotechnology division, CSIR-IHBT, Palampur, HP, 176061, India
| | - Rituraj Purohit
- Structural Bioinformatics Lab, CSIR-Institute of Himalayan Bioresource Technology (CSIR-IHBT), Palampur, HP, 176061, India.
- Biotechnology division, CSIR-IHBT, Palampur, HP, 176061, India.
- Academy of Scientific & Innovative Research (AcSIR), CSIR-IHBT Campus, Palampur, HP, 176061, India.
| | - Vipin Hallan
- Biotechnology division, CSIR-IHBT, Palampur, HP, 176061, India
- Academy of Scientific & Innovative Research (AcSIR), CSIR-IHBT Campus, Palampur, HP, 176061, India
| |
Collapse
|
14
|
Sharma J, Shepardson K, Johns LL, Wellham J, Avera J, Schwarz B, Rynda-Apple A, Douglas T. A Self-Adjuvanted, Modular, Antigenic VLP for Rapid Response to Influenza Virus Variability. ACS APPLIED MATERIALS & INTERFACES 2020; 12:18211-18224. [PMID: 32233444 DOI: 10.1021/acsami.9b21776] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The continuous evolution of influenza A virus (IAV) requires the influenza vaccine formulations to be updated annually to provide adequate protection. Recombinant protein-based vaccines provide safer, faster, and a more scalable alternative to the conventional embryonated egg approach for developing vaccines. However, these vaccines are typically poorer in immunogenicity than the vaccines containing inactivated or attenuated influenza viruses and require administration of a large antigen dosage together with potent adjuvants. The presentation of protein antigens on the surface of virus-like particles (VLP) provides an attractive strategy to rapidly induce stronger antigen-specific immune responses. Here we have examined the immunogenic potential and protective efficacy of P22 VLPs conjugated with multiple copies of the globular head domain of the hemagglutinin (HA) protein from the PR8 strain of IAV in a murine model of influenza pathogenesis. Using a covalent attachment strategy (SpyTag/SpyCatcher), we conjugated the HA globular head, which was recombinantly expressed in a genetically modified E. coli strain and found to refold as a monomer, to preassembled P22 VLPs. Immunization of mice with this P22-HAhead conjugate provided full protection from morbidity and mortality following infection with a homologous IAV strain. Moreover, the P22-HAhead conjugate also elicited an accelerated and enhanced HA head specific IgG response, which was significantly higher than the soluble HA head, or the admixture of P22 and HA head without the need for adjuvants. Thus, our results show that the HA head can be easily prepared by in vitro refolding in a modified E. coli strain, maintaining its intact structure and enabling the induction of a strong immune response when conjugated to P22 VLPs, even when presented as a monomer. These results also demonstrate that the P22 VLPs can be rapidly modified in a modular fashion, resulting in an effective vaccine construct that can generate protective immunity without the need for additional adjuvants.
Collapse
Affiliation(s)
- Jhanvi Sharma
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Kelly Shepardson
- Department of Microbiology and Immunology, Montana State University, Bozeman, Montana 59717, United States
| | - Laura L Johns
- Department of Microbiology and Immunology, Montana State University, Bozeman, Montana 59717, United States
| | - Julia Wellham
- Department of Microbiology and Immunology, Montana State University, Bozeman, Montana 59717, United States
| | - John Avera
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
- Matrivax Research and Development Corporation, Boston, Massachusetts 02118, United Sates
| | - Benjamin Schwarz
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
- Immunity to Pulmonary Pathogens section, Laboratory of Bacteriology, Rocky Mountain Laboratories, NIAID, NIH, Hamilton, Montana 59840, United States
| | - Agnieszka Rynda-Apple
- Department of Microbiology and Immunology, Montana State University, Bozeman, Montana 59717, United States
| | - Trevor Douglas
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| |
Collapse
|
15
|
Wu J, Wu H, Nakagawa S, Gao J. Virus-derived materials: bury the hatchet with old foes. Biomater Sci 2020; 8:1058-1072. [DOI: 10.1039/c9bm01383k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Viruses, with special architecture and unique biological nature, can be utilized for various biomedical applications.
Collapse
Affiliation(s)
- Jiahe Wu
- Institute of Pharmaceutics
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- China
| | - Honghui Wu
- Institute of Pharmaceutics
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- China
| | - Shinsaku Nakagawa
- Department of Pharmaceutics
- Graduate School of Pharmaceutical Sciences
- Osaka University
- Suita
- Japan
| | - Jianqing Gao
- Institute of Pharmaceutics
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- China
| |
Collapse
|
16
|
Kim H, Choi H, Bae Y, Kang S. Development of target‐tunable P22 VLP‐based delivery nanoplatforms using bacterial superglue. Biotechnol Bioeng 2019; 116:2843-2851. [DOI: 10.1002/bit.27129] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/12/2019] [Accepted: 07/14/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Hansol Kim
- Department of Biological Sciences, School of Life SciencesUlsan National Institute of Science and Technology (UNIST) Ulsan Korea
| | - Hyukjun Choi
- Department of Biological Sciences, School of Life SciencesUlsan National Institute of Science and Technology (UNIST) Ulsan Korea
| | - Yoonji Bae
- Department of Biological Sciences, School of Life SciencesUlsan National Institute of Science and Technology (UNIST) Ulsan Korea
| | - Sebyung Kang
- Department of Biological Sciences, School of Life SciencesUlsan National Institute of Science and Technology (UNIST) Ulsan Korea
| |
Collapse
|
17
|
Choi H, Choi B, Kim GJ, Kim HU, Kim H, Jung HS, Kang S. Fabrication of Nanoreaction Clusters with Dual-Functionalized Protein Cage Nanobuilding Blocks. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1801488. [PMID: 30066359 DOI: 10.1002/smll.201801488] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 06/08/2018] [Indexed: 06/08/2023]
Abstract
Fabrication of functional nanostructures is a prominent issue in nanotechnology, because they often exhibit unique properties that are different from the individual building blocks. Protein cage nanoparticles are attractive nanobuilding blocks for constructing nanostructures due to their well-defined symmetric spherical structures, polyvalent nature, and functional plasticity. Here, a lumazine synthase protein cage nanoparticle is genetically modified to be used as a template to generate functional nanobuilding blocks and covalently display enzymes (β-lactamase) and protein ligands (FKBP12/FRB) on its surface, making dual-functional nanobuilding blocks. Nanoreaction clusters are subsequently created by ligand-mediated alternate deposition of two complementary building blocks using layer-by-layer (LbL) assemblies. 3D nanoreaction clusters provide enhanced enzymatic activity compared with monolayered building block arrays. The approaches described here may provide new opportunities for fabricating functional nanostructures and nanoreaction clusters, leading to the development of new protein nanoparticle-based nanostructured biosensor devices.
Collapse
Affiliation(s)
- Hyukjun Choi
- Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Bongseo Choi
- Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Gwang Joong Kim
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, 1, Kangwondaehak-gil, Chuncheon-si, Gangwon-do, 24341, South Korea
| | - Han-Ul Kim
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, 1, Kangwondaehak-gil, Chuncheon-si, Gangwon-do, 24341, South Korea
| | - Hansol Kim
- Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Hyun Suk Jung
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, 1, Kangwondaehak-gil, Chuncheon-si, Gangwon-do, 24341, South Korea
| | - Sebyung Kang
- Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
| |
Collapse
|
18
|
Miettinen HM, Gripentrog JM, Lord CI, Nagy JO. CD177-mediated nanoparticle targeting of human and mouse neutrophils. PLoS One 2018; 13:e0200444. [PMID: 29990379 PMCID: PMC6039027 DOI: 10.1371/journal.pone.0200444] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Accepted: 06/26/2018] [Indexed: 12/23/2022] Open
Abstract
Neutrophils are the most abundant white blood cells, with a vital role in innate immune defense against bacterial and fungal pathogens. Although mostly associated with pathological processes directly related to immune defense, they can also play a detrimental role in inflammatory conditions and have been found to have a pro-metastatic role in the spread of cancer cells. Here, we explore ways to temporarily suppress these detrimental activities. We first examined the possibility of using siRNA and antisense oligonucleotides (ASOs) for transient knockdown of the human and mouse C5a receptor, an important chemoattractant receptor involved in neutrophil-mediated injury that is associated with myocardial infarction, sepsis, and neurodegenerative diseases. We found that siRNAs and ASOs transfected into cultured cell lines can eliminate 70–90% of C5a receptor mRNA and protein within 72 h of administration, a clinically relevant time frame after a cardiovascular event. Targeted drug delivery to specific cells or tissues of interest in a mammalian host, however, remains a major challenge. Here, using phage display technology, we have identified peptides that bind specifically to CD177, a neutrophil-specific surface molecule. We have attached these peptides to fluorescent, lipid-based nanoparticles and confirmed targeting and delivery to cultured cells ectopically presenting either human or mouse CD177. In addition, we have shown peptide-nanoparticle binding specifically to neutrophils in human and mouse blood. We anticipate that these or related tagged nanoparticles may be therapeutically useful for delivery of siRNAs or ASOs to neutrophils for transient knockdown of pro-inflammatory proteins such as the C5a receptor.
Collapse
Affiliation(s)
- Heini M. Miettinen
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, United States of America
- * E-mail:
| | - Jeannie M. Gripentrog
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, United States of America
| | - Connie I. Lord
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, United States of America
| | - Jon O. Nagy
- NanoValent Pharmaceuticals, Inc., Bozeman, MT, United States of America
| |
Collapse
|
19
|
Choi JM, Bourassa V, Hong K, Shoga M, Lim EY, Park A, Apaydin K, Udit AK. Polyvalent Hybrid Virus-Like Nanoparticles with Displayed Heparin Antagonist Peptides. Mol Pharm 2018; 15:2997-3004. [DOI: 10.1021/acs.molpharmaceut.8b00135] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Justin M. Choi
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Valerie Bourassa
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Kevin Hong
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Michael Shoga
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Elizabeth Y. Lim
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Andrew Park
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Kazim Apaydin
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Andrew K. Udit
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| |
Collapse
|
20
|
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.
Collapse
Affiliation(s)
- William M Aumiller
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, USA.
| | | | | |
Collapse
|
21
|
McCoy K, Uchida M, Lee B, Douglas T. Templated Assembly of a Functional Ordered Protein Macromolecular Framework from P22 Virus-like Particles. ACS NANO 2018; 12:3541-3550. [PMID: 29558117 DOI: 10.1021/acsnano.8b00528] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Bottom-up construction of mesoscale materials using biologically derived nanoscale building blocks enables engineering of desired physical properties using green production methods. Virus-like particles (VLPs) are exceptional building blocks due to their monodispersed sizes, geometric shapes, production ease, proteinaceous composition, and our ability to independently functionalize the interior and exterior interfaces. Here a VLP, derived from bacteriophage P22, is used as a building block for the fabrication of a protein macromolecular framework (PMF), a tightly linked 3D network of functional protein cages that exhibit long-range order and catalytic activity. Assembly of PMFs was electrostatically templated, using amine-terminated dendrimers, then locked into place with a ditopic cementing protein that binds to P22. Long-range order is preserved on removal of the dendrimer, leaving a framework material composed completely of protein. Encapsulation of β-glucosidase enzymes inside of P22 VLPs results in formation of stable, condensed-phase materials with high local concentration of enzymes generating catalytically active PMFs.
Collapse
Affiliation(s)
- Kimberly McCoy
- Department of Chemistry , Indiana University , 800 East Kirkwood Avenue , Bloomington , Indiana 47405 , United States
| | - Masaki Uchida
- Department of Chemistry , Indiana University , 800 East Kirkwood Avenue , Bloomington , Indiana 47405 , United States
| | - Byeongdu Lee
- X-ray Science Division, Advanced Photon Source , Argonne National Laboratory , 9700 South Cass Avenue , Argonne , Illinois 60439 , United States
| | - Trevor Douglas
- Department of Chemistry , Indiana University , 800 East Kirkwood Avenue , Bloomington , Indiana 47405 , United States
| |
Collapse
|
22
|
Catalano CE. Bacteriophage lambda: The path from biology to theranostic agent. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2018. [DOI: 10.1002/wnan.1517] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Carlos E. Catalano
- Department of Pharmaceutical Chemistry, Skaggs School of Pharmacy and Pharmaceutical ScienceUniversity of ColoradoAuroraColorado
| |
Collapse
|
23
|
Uchida M, McCoy K, Fukuto M, Yang L, Yoshimura H, Miettinen HM, LaFrance B, Patterson DP, Schwarz B, Karty JA, Prevelige PE, Lee B, Douglas T. Modular Self-Assembly of Protein Cage Lattices for Multistep Catalysis. ACS NANO 2018; 12:942-953. [PMID: 29131580 PMCID: PMC5870838 DOI: 10.1021/acsnano.7b06049] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The assembly of individual molecules into hierarchical structures is a promising strategy for developing three-dimensional materials with properties arising from interaction between the individual building blocks. Virus capsids are elegant examples of biomolecular nanostructures, which are themselves hierarchically assembled from a limited number of protein subunits. Here, we demonstrate the bio-inspired modular construction of materials with two levels of hierarchy: the formation of catalytically active individual virus-like particles (VLPs) through directed self-assembly of capsid subunits with enzyme encapsulation, and the assembly of these VLP building blocks into three-dimensional arrays. The structure of the assembled arrays was successfully altered from an amorphous aggregate to an ordered structure, with a face-centered cubic lattice, by modifying the exterior surface of the VLP without changing its overall morphology, to modulate interparticle interactions. The assembly behavior and resultant lattice structure was a consequence of interparticle interaction between exterior surfaces of individual particles and thus independent of the enzyme cargos encapsulated within the VLPs. These superlattice materials, composed of two populations of enzyme-packaged VLP modules, retained the coupled catalytic activity in a two-step reaction for isobutanol synthesis. This study demonstrates a significant step toward the bottom-up fabrication of functional superlattice materials using a self-assembly process across multiple length scales and exhibits properties and function that arise from the interaction between individual building blocks.
Collapse
Affiliation(s)
- Masaki Uchida
- Department of Chemistry, Indiana University, 800 East Kirkwood Ave., Bloomington, IN 47405, USA
| | - Kimberly McCoy
- Department of Chemistry, Indiana University, 800 East Kirkwood Ave., Bloomington, IN 47405, USA
| | - Masafumi Fukuto
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973, USA
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Lin Yang
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Hideyuki Yoshimura
- Department of Chemistry, Indiana University, 800 East Kirkwood Ave., Bloomington, IN 47405, USA
- Department of Physics, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, 214-8571, Japan
| | - Heini M. Miettinen
- Department of Microbiology and Immunology, Montana State University, Bozeman, Montana 59717, USA
| | - Ben LaFrance
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, USA
| | - Dustin P. Patterson
- Department of Chemistry and Biochemistry, University of Texas at Tyler, Tyler, Texas 75799, USA
| | - Benjamin Schwarz
- Department of Chemistry, Indiana University, 800 East Kirkwood Ave., Bloomington, IN 47405, USA
| | - Jonathan A. Karty
- Department of Chemistry, Indiana University, 800 East Kirkwood Ave., Bloomington, IN 47405, USA
| | - Peter E. Prevelige
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA
| | - Byeongdu Lee
- X-ray science division, Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Ave., Argonne, IL 60439, USA
| | - Trevor Douglas
- Department of Chemistry, Indiana University, 800 East Kirkwood Ave., Bloomington, IN 47405, USA
| |
Collapse
|
24
|
Patterson D, Schwarz B, Avera J, Western B, Hicks M, Krugler P, Terra M, Uchida M, McCoy K, Douglas T. Sortase-Mediated Ligation as a Modular Approach for the Covalent Attachment of Proteins to the Exterior of the Bacteriophage P22 Virus-like Particle. Bioconjug Chem 2017; 28:2114-2124. [PMID: 28612603 PMCID: PMC6708598 DOI: 10.1021/acs.bioconjchem.7b00296] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Virus-like particles are unique platforms well suited for the construction of nanomaterials with broad-range applications. The research presented here describes the development of a modular approach for the covalent attachment of protein domains to the exterior of the versatile bacteriophage P22 virus-like particle (VLP) via a sortase-mediated ligation strategy. The bacteriophage P22 coat protein was genetically engineered to incorporate an LPETG amino acid sequence on the C-terminus, providing the peptide recognition sequence utilized by the sortase enzyme to catalyze peptide bond formation between the LPETG-tagged protein and a protein containing a polyglycine sequence on the N-terminus. Here we evaluate attachment of green fluorescent protein (GFP) and the head domain of the influenza hemagglutinin (HA) protein by genetically producing polyglycine tagged proteins. Attachment of both proteins to the exterior of the P22 VLP was found to be highly efficient as judged by SDS-PAGE densitometry. These results enlarge the tool kit for modifying the P22 VLP system and provide new insights for other VLPs that have an externally displayed C-terminus that can use the described strategy for the modular modification of their external surface for various applications.
Collapse
Affiliation(s)
- Dustin Patterson
- Department of Chemistry & Biochemistry, University of Texas at Tyler, Tyler, Texas 75799, United States
| | - Benjamin Schwarz
- Department of Chemistry, Indiana University, Bloomington, Indiana 47407, United States
| | - John Avera
- Department of Chemistry, Indiana University, Bloomington, Indiana 47407, United States
| | - Brian Western
- Department of Chemistry & Biochemistry, University of Texas at Tyler, Tyler, Texas 75799, United States
| | - Matthew Hicks
- Department of Chemistry & Biochemistry, University of Texas at Tyler, Tyler, Texas 75799, United States
| | - Paul Krugler
- Department of Chemistry & Biochemistry, University of Texas at Tyler, Tyler, Texas 75799, United States
| | - Matthew Terra
- Department of Chemistry & Biochemistry, University of Texas at Tyler, Tyler, Texas 75799, United States
| | - Masaki Uchida
- Department of Chemistry, Indiana University, Bloomington, Indiana 47407, United States
| | - Kimberly McCoy
- Department of Chemistry, Indiana University, Bloomington, Indiana 47407, United States
| | - Trevor Douglas
- Department of Chemistry, Indiana University, Bloomington, Indiana 47407, United States
| |
Collapse
|
25
|
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: 208] [Impact Index Per Article: 29.7] [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.
Collapse
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
| |
Collapse
|
26
|
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.
Collapse
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
| |
Collapse
|
27
|
Engineering virus-like particles as vaccine platforms. Curr Opin Virol 2016; 18:44-9. [PMID: 27039982 DOI: 10.1016/j.coviro.2016.03.001] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 02/11/2016] [Accepted: 03/08/2016] [Indexed: 02/03/2023]
Abstract
Virus-like particles (VLPs) have been utilized as vaccine platforms to increase the immunogenicity of heterologous antigens. A variety of diverse VLP types can serve as vaccine platforms, and research has focused on engineering VLPs to improve their efficacy as vaccines, enhance their stability, and allow for more versatile display of antigens. Here, we review selected VLP vaccine platforms, highlight efforts to improve these platforms through structure-informed rational design, and point to areas of future research that will assist in these efforts.
Collapse
|
28
|
Schwarz B, Madden P, Avera J, Gordon B, Larson K, Miettinen HM, Uchida M, LaFrance B, Basu G, Rynda-Apple A, Douglas T. Symmetry Controlled, Genetic Presentation of Bioactive Proteins on the P22 Virus-like Particle Using an External Decoration Protein. ACS NANO 2015; 9:9134-47. [PMID: 26266824 PMCID: PMC4863989 DOI: 10.1021/acsnano.5b03360] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Viruses use spatial control of constituent proteins as a means of manipulating and evading host immune systems. Similarly, precise spatial control of proteins encapsulated or presented on designed nanoparticles has the potential to biomimetically amplify or shield biological interactions. Previously, we have shown the ability to encapsulate a wide range of guest proteins within the virus-like particle (VLP) from Salmonella typhimurium bacteriophage P22, including antigenic proteins from human pathogens such as influenza. Expanding on this robust encapsulation strategy, we have used the trimeric decoration protein (Dec) from bacteriophage L as a means of controlled exterior presentation on the mature P22 VLP, to which it binds with high affinity. Through genetic fusion to the C-terminus of the Dec protein, either the 17 kDa soluble region of murine CD40L or a minimal peptide designed from the binding region of the "self-marker" CD47 was independently presented on the P22 VLP capsid exterior. Both candidates retained function when presented as a Dec-fusion. Binding of the Dec domain to the P22 capsid was minimally changed across designed constructs, as measured by surface plasmon resonance, demonstrating the broad utility of this presentation strategy. Dec-mediated presentation offers a robust, modular means of decorating the exposed exterior of the P22 capsid in order to further orchestrate responses to internally functionalized VLPs within biological systems.
Collapse
Affiliation(s)
- Benjamin Schwarz
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Patrick Madden
- Department of Chemistry and Biochemistry, Montana State University, PO Box 173400, Bozeman, Montana 59717, United States
| | - John Avera
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Bridget Gordon
- BiOptix Inc., 1775 38th Street, Boulder, Colorado 80301, United States
| | - Kyle Larson
- Department of Microbiology and Immunology, Montana State University, PO Box 173520, Bozeman, Montana 59717, United States
| | - Heini M. Miettinen
- Department of Microbiology and Immunology, Montana State University, PO Box 173520, Bozeman, Montana 59717, United States
| | - Masaki Uchida
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Ben LaFrance
- Department of Chemistry and Biochemistry, Montana State University, PO Box 173400, Bozeman, Montana 59717, United States
| | - Gautam Basu
- Department of Biophysics, Bose Institute, Kolkata 700054, India
| | - Agnieszka Rynda-Apple
- Department of Microbiology and Immunology, Montana State University, PO Box 173520, Bozeman, Montana 59717, United States
| | - Trevor Douglas
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| |
Collapse
|
29
|
Casjens SR, Hendrix RW. Bacteriophage lambda: Early pioneer and still relevant. Virology 2015; 479-480:310-30. [PMID: 25742714 PMCID: PMC4424060 DOI: 10.1016/j.virol.2015.02.010] [Citation(s) in RCA: 173] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 01/13/2015] [Accepted: 02/05/2015] [Indexed: 12/14/2022]
Abstract
Molecular genetic research on bacteriophage lambda carried out during its golden age from the mid-1950s to mid-1980s was critically important in the attainment of our current understanding of the sophisticated and complex mechanisms by which the expression of genes is controlled, of DNA virus assembly and of the molecular nature of lysogeny. The development of molecular cloning techniques, ironically instigated largely by phage lambda researchers, allowed many phage workers to switch their efforts to other biological systems. Nonetheless, since that time the ongoing study of lambda and its relatives has continued to give important new insights. In this review we give some relevant early history and describe recent developments in understanding the molecular biology of lambda's life cycle.
Collapse
Affiliation(s)
- Sherwood R Casjens
- Division of Microbiology and Immunology, Pathology Department, University of Utah School of Medicine, Emma Eccles Jones Medical Research Building, 15 North Medical Drive East, Salt Lake City, UT 84112, USA; Biology Department, University of Utah, Salt Lake City, UT 84112, USA.
| | - Roger W Hendrix
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA
| |
Collapse
|
30
|
Jiang J, Yang J, Sereda YV, Ortoleva PJ. Early stage P22 viral capsid self-assembly mediated by scaffolding protein: atom-resolved model and molecular dynamics simulation. J Phys Chem B 2015; 119:5156-62. [PMID: 25815608 DOI: 10.1021/acs.jpcb.5b00303] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Molecular dynamics simulation of an atom-resolved bacteriophage P22 capsid model is used to delineate the underlying mechanism of early stage P22 self-assembly. A dimer formed by the C-terminal fragment of scaffolding protein with a new conformation is demonstrated to catalyze capsomer (hexamer and pentamer) aggregation efficiently. Effects of scaffolding protein/coat protein binding patterns and scaffolding protein concentration on efficiency, fidelity, and capsid curvature of P22 self-assembly are identified.
Collapse
Affiliation(s)
- Jiajian Jiang
- Center for Theoretical and Computational Nanoscience, Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Jing Yang
- Center for Theoretical and Computational Nanoscience, Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Yuriy V Sereda
- Center for Theoretical and Computational Nanoscience, Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Peter J Ortoleva
- Center for Theoretical and Computational Nanoscience, Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| |
Collapse
|
31
|
Chang JR, Song EH, Nakatani-Webster E, Monkkonen L, Ratner DM, Catalano CE. Phage Lambda Capsids as Tunable Display Nanoparticles. Biomacromolecules 2014; 15:4410-9. [DOI: 10.1021/bm5011646] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jenny R. Chang
- Department
of Medicinal Chemistry, School of Pharmacy, University of Washington H-172, Health Sciences Building, Box 357610, Seattle, Washington 98195-7610, United States
| | - Eun-Ho Song
- Department
of Bioengineering, University of Washington, William H. Foege Building, Room
N210D, Box 355061, Seattle, Washington 98195-5061, United States
| | - Eri Nakatani-Webster
- Department
of Medicinal Chemistry, School of Pharmacy, University of Washington H-172, Health Sciences Building, Box 357610, Seattle, Washington 98195-7610, United States
| | - Lucas Monkkonen
- Department
of Medicinal Chemistry, School of Pharmacy, University of Washington H-172, Health Sciences Building, Box 357610, Seattle, Washington 98195-7610, United States
| | - Daniel M. Ratner
- Department
of Bioengineering, University of Washington, William H. Foege Building, Room
N210D, Box 355061, Seattle, Washington 98195-5061, United States
| | - Carlos E. Catalano
- Department
of Medicinal Chemistry, School of Pharmacy, University of Washington H-172, Health Sciences Building, Box 357610, Seattle, Washington 98195-7610, United States
| |
Collapse
|
32
|
Schoonen L, van Hest JCM. Functionalization of protein-based nanocages for drug delivery applications. NANOSCALE 2014; 6:7124-41. [PMID: 24860847 DOI: 10.1039/c4nr00915k] [Citation(s) in RCA: 128] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Traditional drug delivery strategies involve drugs which are not targeted towards the desired tissue. This can lead to undesired side effects, as normal cells are affected by the drugs as well. Therefore, new systems are now being developed which combine targeting functionalities with encapsulation of drug cargo. Protein nanocages are highly promising drug delivery platforms due to their perfectly defined structures, biocompatibility, biodegradability and low toxicity. A variety of protein nanocages have been modified and functionalized for these types of applications. In this review, we aim to give an overview of different types of modifications of protein-based nanocontainers for drug delivery applications.
Collapse
Affiliation(s)
- Lise Schoonen
- Institute of Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.
| | | |
Collapse
|