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Sakamoto K, Yamamoto Y, Inaba H, Matsuura K. Strategy toward In-Cell Self-Assembly of an Artificial Viral Capsid from a Fluorescent Protein-Modified β-Annulus Peptide. ACS Synth Biol 2024; 13:1842-1850. [PMID: 38729919 DOI: 10.1021/acssynbio.4c00135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
In-cell self-assembly of natural viral capsids is an event that can be visualized under transmission electron microscopy (TEM) observations. By mimicking the self-assembly of natural viral capsids, various artificial protein- and peptide-based nanocages were developed; however, few studies have reported the in-cell self-assembly of such nanocages. Our group developed a β-Annulus peptide that can form a nanocage called artificial viral capsid in vitro, but in-cell self-assembly of the capsid has not been achieved. Here, we designed an artificial viral capsid decorated with a fluorescent protein, StayGold, to visualize in-cell self-assembly. Fluorescence anisotropy measurements and fluorescence resonance energy transfer imaging, in addition to TEM observations of the cells and super-resolution microscopy, revealed that StayGold-conjugated β-Annulus peptides self-assembled into the StayGold-decorated artificial viral capsid in a cell. Using these techniques, we achieved the in-cell self-assembly of an artificial viral capsid.
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Affiliation(s)
- Kentarou Sakamoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori 680-8552, Japan
| | - Yuka Yamamoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori 680-8552, Japan
| | - Hiroshi Inaba
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori 680-8552, Japan
- Centre for Research on Green Sustainable Chemistry, Tottori University, Tottori 680-8552, Japan
| | - Kazunori Matsuura
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori 680-8552, Japan
- Centre for Research on Green Sustainable Chemistry, Tottori University, Tottori 680-8552, Japan
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2
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Park J, Champion JA. Development of Self-Assembled Protein Nanocage Spatially Functionalized with HA Stalk as a Broadly Cross-Reactive Influenza Vaccine Platform. ACS NANO 2023; 17:25045-25060. [PMID: 38084728 PMCID: PMC10753887 DOI: 10.1021/acsnano.3c07669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/29/2023] [Accepted: 12/01/2023] [Indexed: 12/27/2023]
Abstract
There remains a need for the development of a universal influenza vaccine, as current seasonal influenza vaccines exhibit limited protection against mismatched, mutated, or pandemic influenza viruses. A desirable approach to developing an effective universal influenza vaccine is the incorporation of highly conserved antigens in a multivalent scaffold that enhances their immunogenicity. Here, we develop a broadly cross-reactive influenza vaccine by functionalizing self-assembled protein nanocages (SAPNs) with multiple copies of the hemagglutinin stalk on the outer surface and matrix protein 2 ectodomain on the inner surface. SAPNs were generated by engineering short coiled coils, and the design was simulated by MD GROMACS. Due to the short sequences, off-target immune responses against empty SAPN scaffolds were not seen in immunized mice. Vaccination with the multivalent SAPNs induces high levels of broadly cross-reactive antibodies of only external antigens, demonstrating tight spatial control over the designed antigen placement. This work demonstrates the use of SAPNs as a potential influenza vaccine.
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Affiliation(s)
- Jaeyoung Park
- School of Chemical and Biomolecular
Engineering, Georgia Institute of Technology, 950 Atlantic Dr. NW, Atlanta, Georgia 30332-2000, United States
| | - Julie A. Champion
- School of Chemical and Biomolecular
Engineering, Georgia Institute of Technology, 950 Atlantic Dr. NW, Atlanta, Georgia 30332-2000, United States
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3
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Ito K, Furukawa H, Inaba H, Ohshima S, Kametani Y, Maeki M, Tokeshi M, Huang X, Kabayama K, Manabe Y, Fukase K, Matsuura K. Antigen/Adjuvant-Displaying Enveloped Viral Replica as a Self-Adjuvanting Anti-Breast-Cancer Vaccine Candidate. J Am Chem Soc 2023; 145:15838-15847. [PMID: 37344812 DOI: 10.1021/jacs.3c02679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/23/2023]
Abstract
We report a promising cancer vaccine candidate comprising antigen/adjuvant-displaying enveloped viral replica as a novel vaccine platform. The artificial viral capsid, which consists of a self-assembled β-annulus peptide conjugated with an HER2-derived antigenic CH401 peptide, was enveloped within a lipid bilayer containing the lipidic adjuvant α-GalCer. The use of an artificial viral capsid as a scaffold enabled precise control of its size to ∼100 nm, which is generally considered to be optimal for delivery to lymph nodes. The encapsulation of the anionically charged capsid by a cationic lipid bilayer dramatically improved its stability and converted its surface charge to cationic, enhancing its uptake by dendritic cells. The developed CH401/α-GalCer-displaying enveloped viral replica exhibited remarkable antibody-production activity. This study represents a pioneering example of precise vaccine design through bottom-up construction and opens new avenues for the development of effective vaccines.
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Affiliation(s)
- Keita Ito
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
| | - Hiroto Furukawa
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 680-8552, Japan
| | - Hiroshi Inaba
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 680-8552, Japan
- Center for Research on Green Sustainable Chemistry, Tottori University, 4-101 Koyama-Minami, Tottori 680-8552, Japan
| | - Shino Ohshima
- School of Medicine, Tokai University, Isehara 259-1193, Kanagawa, Japan
| | - Yoshie Kametani
- School of Medicine, Tokai University, Isehara 259-1193, Kanagawa, Japan
| | - Masatoshi Maeki
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Hokkaido, Japan
| | - Manabu Tokeshi
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Hokkaido, Japan
| | - Xuhao Huang
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
| | - Kazuya Kabayama
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
- Forefront Research Center, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
| | - Yoshiyuki Manabe
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
- Forefront Research Center, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
- Forefront Research Center, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
- Center for Advanced Modalities and DDS, Osaka University, 1-1 Yamadaoka, Suita 565-0871, Osaka, Japan
| | - Kazunori Matsuura
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 680-8552, Japan
- Center for Research on Green Sustainable Chemistry, Tottori University, 4-101 Koyama-Minami, Tottori 680-8552, Japan
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4
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Woolfson DN. Understanding a protein fold: the physics, chemistry, and biology of α-helical coiled coils. J Biol Chem 2023; 299:104579. [PMID: 36871758 PMCID: PMC10124910 DOI: 10.1016/j.jbc.2023.104579] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/25/2023] [Accepted: 02/27/2023] [Indexed: 03/07/2023] Open
Abstract
Protein science is being transformed by powerful computational methods for structure prediction and design: AlphaFold2 can predict many natural protein structures from sequence, and other AI methods are enabling the de novo design of new structures. This raises a question: how much do we understand the underlying sequence-to-structure/function relationships being captured by these methods? This perspective presents our current understanding of one class of protein assembly, the α-helical coiled coils. At first sight, these are straightforward: sequence repeats of hydrophobic (h) and polar (p) residues, (hpphppp)n, direct the folding and assembly of amphipathic α helices into bundles. However, many different bundles are possible: they can have two or more helices (different oligomers); the helices can have parallel, antiparallel or mixed arrangements (different topologies); and the helical sequences can be the same (homomers) or different (heteromers). Thus, sequence-to-structure relationships must be present within the hpphppp repeats to distinguish these states. I discuss the current understanding of this problem at three levels: First, physics gives a parametric framework to generate the many possible coiled-coil backbone structures. Second, chemistry provides a means to explore and deliver sequence-to-structure relationships. Third, biology shows how coiled coils are adapted and functionalized in nature, inspiring applications of coiled coils in synthetic biology. I argue that the chemistry is largely understood; the physics is partly solved, though the considerable challenge of predicting even relative stabilities of different coiled-coil states remains; but there is much more to explore in the biology and synthetic biology of coiled coils.
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Affiliation(s)
- Derek N Woolfson
- School of Chemistry, University of Bristol, Bristol, United Kingdom; School of Biochemistry, University of Bristol, Medical Sciences Building, University Walk, Bristol, United Kingdom; BrisEngBio, School of Chemistry, University of Bristol, Bristol, United Kingdom; Max Planck-Bristol Centre for Minimal Biology, University of Bristol, Bristol, United Kingdom.
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5
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Wack JS, Brahm K, Babel P, Dalton JAR, Schmitz K. Effect of macrocyclization and tetramethylrhodamine labeling on chemokine binding peptides. J Pept Sci 2023:e3486. [PMID: 36843216 DOI: 10.1002/psc.3486] [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: 12/08/2022] [Revised: 02/05/2023] [Accepted: 02/21/2023] [Indexed: 02/28/2023]
Abstract
Receptor-derived peptides have played an important role in elucidating chemokine-receptor interactions. For the inflammatory chemokine CXC-class chemokine ligand 8 (CXCL8), a site II-mimetic peptide has been derived from parts of extracellular loops 2 and 3 and adjacent transmembrane helices of its receptor CXC-class chemokine receptor 1 (Helmer et al., RSC Adv., 2015, 5, 25657). The peptide sequence with a C-terminal glutamine did not bind to CXCL8, whereas one with a C-terminal glutamate did but with low micromolar affinity. We sought to improve the affinity and protease stability of the latter peptide through cyclization while also cyclizing the former for control purposes. To identify a cyclization strategy that permits a receptor-like interaction, we conducted a molecular dynamics simulation of CXCL8 in complex with full-length CXC-class chemokine receptor 1. We introduced a linker to provide an appropriate spacing between the termini and used an on-resin side-chain-to-tail cyclization strategy. Upon chemokine binding, the fluorescence intensity of the tetramethylrhodamine (TAMRA)-labeled cyclic peptides increased whereas the fluorescence anisotropy decreased. Additional molecular dynamics simulations indicated that the fluorophore interacts with the peptide macrocycle so that chemokine binding leads to its displacement and observed changes in fluorescence. Macrocyclization of both 18-amino acid-long peptides led to the same low micromolar affinity for CXCL8. Likewise, both TAMRA-labeled linear peptides interacted with CXCL8 with similar affinities. Interestingly, the linear TAMRA-labeled peptides were more resistant to tryptic digestion than the unlabeled counterparts, whereas the cyclized peptides were not degraded at all. We conclude that the TAMRA fluorophore tends to interact with peptides altering their protease stability and behavior in fluorescence-based assays.
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Affiliation(s)
- Julia S Wack
- Biological Chemistry, Clemens-Schöpf-Institute for Organic Chemistry and Biochemistry, Technical University of Darmstadt, Darmstadt, Germany
| | - Kevin Brahm
- Biological Chemistry, Clemens-Schöpf-Institute for Organic Chemistry and Biochemistry, Technical University of Darmstadt, Darmstadt, Germany
| | - Philipp Babel
- Computational Biology and Simulation, Technical University of Darmstadt, Darmstadt, Germany
| | - James A R Dalton
- Laboratory of Molecular Neuropharmacology and Bioinformatics, Unitat de Bioestadística, Institut de Neurociències, Universitat Autònoma de Barcelona, Bellaterra, Spain.,Ronin Institute, Montclair, New Jersey, USA
| | - Katja Schmitz
- Biological Chemistry, Clemens-Schöpf-Institute for Organic Chemistry and Biochemistry, Technical University of Darmstadt, Darmstadt, Germany
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6
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PASylation improves pharmacokinetic of liposomes and attenuates anti-PEG IgM production: An alternative to PEGylation. NANOMEDICINE: NANOTECHNOLOGY, BIOLOGY AND MEDICINE 2023; 47:102622. [DOI: 10.1016/j.nano.2022.102622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 08/22/2022] [Accepted: 10/15/2022] [Indexed: 12/12/2022]
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7
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Heide F, Stetefeld J. A Structural Analysis of Proteinaceous Nanotube Cavities and Their Applications in Nanotechnology. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4080. [PMID: 36432365 PMCID: PMC9698212 DOI: 10.3390/nano12224080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
Protein nanotubes offer unique properties to the materials science field that allow them to fulfill various functions in drug delivery, biosensors and energy storage. Protein nanotubes are chemically diverse, modular, biodegradable and nontoxic. Furthermore, although the initial design or repurposing of such nanotubes is highly complex, the field has matured to understand underlying chemical and physical properties to a point where applications are successfully being developed. An important feature of a nanotube is its ability to bind ligands via its internal cavities. As ligands of interest vary in size, shape and chemical properties, cavities have to be able to accommodate very specific features. As such, understanding cavities on a structural level is essential for their effective application. The objective of this review is to present the chemical and physical diversity of protein nanotube cavities and highlight their potential applications in materials science, specifically in biotechnology.
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Affiliation(s)
- Fabian Heide
- Correspondence: (F.H.); (J.S.); Tel.: +1-(204)-332-0853 (F.H.); +1-(204)-474-9731 (J.S.)
| | - Jörg Stetefeld
- Correspondence: (F.H.); (J.S.); Tel.: +1-(204)-332-0853 (F.H.); +1-(204)-474-9731 (J.S.)
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8
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Li Y, Champion JA. Self-assembling nanocarriers from engineered proteins: Design, functionalization, and application for drug delivery. Adv Drug Deliv Rev 2022; 189:114462. [PMID: 35934126 DOI: 10.1016/j.addr.2022.114462] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/09/2022] [Accepted: 07/15/2022] [Indexed: 01/24/2023]
Abstract
Self-assembling proteins are valuable building blocks for constructing drug nanocarriers due to their self-assembly behavior, monodispersity, biocompatibility, and biodegradability. Genetic and chemical modifications allow for modular design of protein nanocarriers with effective drug encapsulation, targetability, stimuli responsiveness, and in vivo half-life. Protein nanocarriers have been developed to deliver various therapeutic molecules including small molecules, proteins, and nucleic acids with proven in vitro and in vivo efficacy. This article reviews recent advances in protein nanocarriers that are not derived from natural protein nanostructures, such as protein cages or virus like particles. The protein nanocarriers described here are self-assembled from rationally or de novo designed recombinant proteins, as well as recombinant proteins complexed with other biomolecules, presenting properties that are unique from those of natural protein carriers. Design, functionalization, and therapeutic application of protein nanocarriers will be discussed.
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Affiliation(s)
- Yirui Li
- BioEngineering Program, Georgia Institute of Technology, United States
| | - Julie A Champion
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 950 Atlantic Drive NW, Atlanta, GA 30332, United States; BioEngineering Program, Georgia Institute of Technology, United States.
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9
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Janković P, Šantek I, Pina AS, Kalafatovic D. Exploiting Peptide Self-Assembly for the Development of Minimalistic Viral Mimetics. Front Chem 2021; 9:723473. [PMID: 34395387 PMCID: PMC8355586 DOI: 10.3389/fchem.2021.723473] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 07/15/2021] [Indexed: 12/03/2022] Open
Abstract
Viruses are natural supramolecular nanostructures that form spontaneously by molecular self-assembly of complex biomolecules. Peptide self-assembly is a versatile tool that allows mimicking viruses by creating their simplified versions through the design of functional, supramolecular materials with modularity, tunability, and responsiveness to chemical and physical stimuli. The main challenge in the design and fabrication of peptide materials is related to the precise control between the peptide sequence and its resulting supramolecular morphology. We provide an overview of existing sequence patterns employed for the development of spherical and fibrillar peptide assemblies that can act as viral mimetics, offering the opportunity to tackle the challenges of viral infections.
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Affiliation(s)
| | - Iva Šantek
- Department of Biotechnology, University of Rijeka, Rijeka, Croatia
| | - Ana Sofia Pina
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University Lisbon, Caparica, Portugal
- UCIBIO – Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, NOVA University Lisbon, Caparica, Portugal
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10
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Kobayashi R, Inaba H, Matsuura K. Fluorescence Correlation Spectroscopy Analysis of Effect of Molecular Crowding on Self-Assembly of β-Annulus Peptide into Artificial Viral Capsid. Int J Mol Sci 2021; 22:ijms22094754. [PMID: 33946174 PMCID: PMC8125178 DOI: 10.3390/ijms22094754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 04/26/2021] [Accepted: 04/29/2021] [Indexed: 12/11/2022] Open
Abstract
Recent progress in the de novo design of self-assembling peptides has enabled the construction of peptide-based viral capsids. Previously, we demonstrated that 24-mer β-annulus peptides from tomato bushy stunt virus spontaneously self-assemble into an artificial viral capsid. Here we propose to use the artificial viral capsid through the self-assembly of β-annulus peptide as a simple model to analyze the effect of molecular crowding environment on the formation process of viral capsid. Artificial viral capsids formed by co-assembly of fluorescent-labelled and unmodified β-annulus peptides in dilute aqueous solutions and under molecular crowding conditions were analyzed using fluorescence correlation spectroscopy (FCS). The apparent particle size and the dissociation constant (Kd) of the assemblies decreased with increasing concentration of the molecular crowding agent, i.e., polyethylene glycol (PEG). This is the first successful in situ analysis of self-assembling process of artificial viral capsid under molecular crowding conditions.
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Affiliation(s)
- Risako Kobayashi
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori 680-8552, Japan; (R.K.); (H.I.)
| | - Hiroshi Inaba
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori 680-8552, Japan; (R.K.); (H.I.)
- Centre for Research on Green Sustainable Chemistry, Tottori University, Tottori 680-8552, Japan
| | - Kazunori Matsuura
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori 680-8552, Japan; (R.K.); (H.I.)
- Centre for Research on Green Sustainable Chemistry, Tottori University, Tottori 680-8552, Japan
- Correspondence: ; Tel.: +81-857-31-5262
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11
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Matsuura K, Fujita S. A Photoresponsive Artificial Viral Capsid Self-Assembled from an Azobenzene-Containing β-Annulus Peptide. Int J Mol Sci 2021; 22:ijms22084028. [PMID: 33919771 PMCID: PMC8070682 DOI: 10.3390/ijms22084028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/11/2021] [Accepted: 04/12/2021] [Indexed: 12/25/2022] Open
Abstract
Photoinduced structural changes in peptides can dynamically control the formation and dissociation of supramolecular peptide materials. However, the existence of photoresponsive viral capsids in nature remains unknown. In this study, we constructed an artificial viral capsid possessing a photochromic azobenzene moiety on the peptide backbone. An azobenzene-containing β-annulus peptide derived from the tomato bushy stunt virus was prepared through solid-phase synthesis using Fmoc-3-[(3-aminomethyl)-phenylazo]phenylacetic acid. The azobenzene-containing β-annulus (β-Annulus-Azo) peptide showed a reversible trans/cis isomerization property. The β-annulus-azo peptide self-assembled at 25 μM into capsids with the diameters of 30–50 nm before UV irradiation (trans-form rich), whereas micrometer-sized aggregates were formed after UV irradiation (cis-form rich). The artificial viral capsid possessing azobenzene facilitated the encapsulation of fluorescent-labeled dextrans and their photoinduced release from the capsid.
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Affiliation(s)
- Kazunori Matsuura
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori 680-8552, Japan;
- Centre for Research on Green Sustainable Chemistry, Tottori University, Tottori 680-8552, Japan
- Correspondence: ; Tel.: +81-857-31-5262
| | - Seiya Fujita
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori 680-8552, Japan;
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12
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Inaba H, Matsuura K. Functional Peptide Nanocapsules Self-Assembled from β-Annulus Peptides. Methods Mol Biol 2021; 2208:101-121. [PMID: 32856258 DOI: 10.1007/978-1-0716-0928-6_7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Spherical viruses are unique nanocapsules formed by self-assembly of coat proteins (capsids). By mimicking natural spherical capsids, various artificial viral capsids are developed by using self-assembled proteins and peptides as building blocks. We developed an artificial viral capsid consisting of a β-annulus peptide designed from natural viruses. The "β-annulus capsid" can be functionalized by encapsulating guest molecules to the inside and decoration of exogenous molecules on the outside. Here, we describe the encapsulation and decoration on the β-annulus capsids by connecting additional sequences to the β-annulus peptide, conjugation with objective molecules, and subsequent self-assembly in aqueous solutions.
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Affiliation(s)
- Hiroshi Inaba
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori, Japan.,Centre for Research on Green Sustainable Chemistry, Tottori University, Tottori, Japan
| | - Kazunori Matsuura
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori, Japan. .,Centre for Research on Green Sustainable Chemistry, Tottori University, Tottori, Japan.
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13
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Distaffen HE, Jones CW, Abraham BL, Nilsson BL. Multivalent display of chemical signals on
self‐assembled
peptide scaffolds. Pept Sci (Hoboken) 2021. [DOI: 10.1002/pep2.24224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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14
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Horseradish Peroxidase-Decorated Artificial Viral Capsid Constructed from β-Annulus Peptide via Interaction between His-Tag and Ni-NTA. Processes (Basel) 2020. [DOI: 10.3390/pr8111455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Artificial construction of spherical protein assemblies has attracted considerable attention due to its potential use in nanocontainers, nanocarriers, and nanoreactors. In this work, we demonstrate a novel strategy to construct peptide nanocapsules (artificial viral capsids) decorated with enzymes via interactions between His-tag and Ni-NTA. A β-annulus peptide derived from the tomato bushy stunt virus was modified with Ni-NTA at the C-terminus, which is directed toward the exterior surface of the artificial viral capsid. The β-annulus peptide bearing Ni-NTA at the C-terminus self-assembled into capsids of about 50 nm in diameter. The Ni-NTA-displayed capsids were complexed with recombinant horseradish peroxidase (HRP) with a C-terminal His-tag which was expressed in Escherichia coli. The β-annulus peptide-HRP complex formed spherical assemblies whose sizes were 30–90 nm, with the ζ-potential revealing that the HRP was decorated on the outer surface of the capsid.
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15
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Encapsulation of mRNA into Artificial Viral Capsids via Hybridization of a β-Annulus-dT20 Conjugate and the Poly(A) Tail of mRNA. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10228004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Messenger RNA (mRNA) drugs have attracted considerable attention as promising tools with many therapeutic applications. The efficient delivery of mRNA drugs using non-viral materials is currently being explored. We demonstrate a novel concept where mCherry mRNA bearing a poly(A) tail is encapsulated into capsids co-assembled from viral β-annulus peptides bearing a 20-mer oligothymine (dT20) at the N-terminus and unmodified peptides via hybridization of dT20 and poly(A). Dynamic light scattering measurements and transmission electron microscopy images of the mRNA-encapsulated capsids show the formation of spherical assemblies of approximately 50 nm. The encapsulated mRNA shows remarkable ribonuclease resistance. Further, modification by a cell-penetrating peptide (His16) on the capsid enables the intracellular expression of mCherry of encapsulated mRNA.
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16
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Samal S, Shrivastava T, Sonkusre P, Rizvi ZA, Kumar R, Ahmed S, Vishwakarma P, Yadav N, Bansal M, Chauhan K, Pokhrel S, Das S, Tambare P, Awasthi A. Tetramerizing tGCN4 domain facilitates production of Influenza A H1N1 M2e higher order soluble oligomers that show enhanced immunogenicity in vivo. J Biol Chem 2020; 295:14352-14366. [PMID: 32817314 DOI: 10.1074/jbc.ra120.013233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 08/11/2020] [Indexed: 12/25/2022] Open
Abstract
One strategy for the development of a next generation influenza vaccine centers upon using conserved domains of the virus to induce broader and long-lasting immune responses. The production of artificial proteins by mimicking native-like structures has shown to be a promising approach for vaccine design against diverse enveloped viruses. The amino terminus of influenza A virus matrix 2 ectodomain (M2e) is highly conserved among influenza subtypes, and previous studies have shown M2e-based vaccines are strongly immunogenic, making it an attractive target for further exploration. We hypothesized that stabilizing M2e protein in the mammalian system might influence the immunogenicity of M2e with the added advantage to robustly produce the large scale of proteins with native-like fold and hence can act as an efficient vaccine candidate. In this study, we created an engineered construct in which the amino terminus of M2e is linked to the tetramerizing domain tGCN4, expressed the construct in a mammalian system, and tested for immunogenicity in BALB/c mice. We have also constructed a stand-alone M2e construct (without tGCN4) and compared the protein expressed in mammalian cells and in Escherichia coli using in vitro and in vivo methods. The mammalian-expressed protein was found to be more stable, more antigenic than the E. coli protein, and form higher-order oligomers. In an intramuscular protein priming and boosting regimen in mice, these proteins induced high titers of antibodies and elicited a mixed Th1/Th2 response. These results highlight the mammalian-expressed M2e soluble proteins as a promising vaccine development platform.
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Affiliation(s)
- Sweety Samal
- Infection and Immunology, Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, Faridabad, India
| | - Tripti Shrivastava
- Infection and Immunology, Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, Faridabad, India
| | - Praveen Sonkusre
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Zaigham Abbas Rizvi
- Infection and Immunology, Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, Faridabad, India
| | - Rajesh Kumar
- Infection and Immunology, Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, Faridabad, India
| | - Shubbir Ahmed
- Infection and Immunology, Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, Faridabad, India
| | - Preeti Vishwakarma
- Infection and Immunology, Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, Faridabad, India
| | - Naveen Yadav
- Infection and Immunology, Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, Faridabad, India
| | - Manish Bansal
- Infection and Immunology, Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, Faridabad, India
| | - Kanchana Chauhan
- Infection and Immunology, Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, Faridabad, India
| | - Sebanta Pokhrel
- Infection and Immunology, Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, Faridabad, India
| | - Supratik Das
- Infection and Immunology, Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, Faridabad, India
| | - Padmakar Tambare
- Infection and Immunology, Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, Faridabad, India
| | - Amit Awasthi
- Infection and Immunology, Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, Faridabad, India
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Furukawa H, Inaba H, Inoue F, Sasaki Y, Akiyoshi K, Matsuura K. Enveloped artificial viral capsids self-assembled from anionic β-annulus peptide and cationic lipid bilayer. Chem Commun (Camb) 2020; 56:7092-7095. [PMID: 32490862 DOI: 10.1039/d0cc02622k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Anionic artificial viral capsids were self-assembled from β-annulus-EE peptide, then complexed with lipid-bilayer-containing cationic lipids via electrostatic interaction to form enveloped artificial viral capsids. The critical aggregation concentration of the enveloped artificial viral capsid was significantly lower than that of the uncomplexed artificial viral capsid, indicating that the lipid bilayer stabilised the capsid structure.
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Affiliation(s)
- Hiroto Furukawa
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Koyama-Minami 4-101, Tottori 680-8552, Japan.
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19
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Matsuura K, Ota J, Fujita S, Shiomi Y, Inaba H. Construction of Ribonuclease-Decorated Artificial Virus-like Capsid by Peptide Self-assembly. J Org Chem 2020; 85:1668-1673. [PMID: 31875395 DOI: 10.1021/acs.joc.9b02295] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Artificial virus-like capsids decorated with ribonuclease S (RNase S) on their exterior were constructed by the self-assembly of β-annulus-S-peptide and the interaction between S-peptide moiety and S-protein. The β-annulus-S-peptide was synthesized by native chemical ligation of β-annulus-SBz peptide with Cys-containing S-peptide that self-assembled into artificial virus-like capsids of approximately 47 nm in size. Reconstruction of RNase S on the artificial virus-like capsids afforded spherical assembly attached small spheres on the surface, which retained ribonuclease activity.
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20
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Liang J, Mazur F, Tang C, Ning X, Chandrawati R, Liang K. Peptide-induced super-assembly of biocatalytic metal-organic frameworks for programmed enzyme cascades. Chem Sci 2019; 10:7852-7858. [PMID: 31853344 PMCID: PMC6839597 DOI: 10.1039/c9sc02021g] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 07/20/2019] [Indexed: 01/03/2023] Open
Abstract
Despite the promise of metal-organic frameworks (MOFs) as functional matrices for enzyme stabilization, the development of a stimulus-responsive approach to induce a multi-enzyme cascade reaction in MOFs remains a critical challenge. Here, a novel method using peptide-induced super-assembly of MOFs is developed for programmed enzyme cascade reactions on demand. The super-assembled MOF particles containing different enzymes show remarkable 7.3-fold and 4.4-fold catalytic activity enhancements for the two-enzyme and three-enzyme cascade reactions, respectively, as compared with the unassembled MOF nanoparticles. Further digestion of the coiled-coil forming peptides on the MOF surfaces leads to the MOF superstructure disassembly and the programmed enzyme cascade reaction being "switched-off". Research on these stimuli-responsive materials with controllable and predictable biocatalytic functions/properties provide a concept to facilitate the fabrication of next-generation smart materials based on precision chemistry.
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Affiliation(s)
- Jieying Liang
- School of Chemical Engineering , The University of New South Wales , Sydney , NSW 2052 , Australia . ;
- School of Environmental Science and Engineering , Guangdong University of Technology , Guangzhou 510006 , China .
| | - Federico Mazur
- School of Chemical Engineering , The University of New South Wales , Sydney , NSW 2052 , Australia . ;
| | - Chuyang Tang
- School of Chemical Engineering , The University of New South Wales , Sydney , NSW 2052 , Australia . ;
| | - Xunan Ning
- School of Environmental Science and Engineering , Guangdong University of Technology , Guangzhou 510006 , China .
| | - Rona Chandrawati
- School of Chemical Engineering , The University of New South Wales , Sydney , NSW 2052 , Australia . ;
| | - Kang Liang
- School of Chemical Engineering , The University of New South Wales , Sydney , NSW 2052 , Australia . ;
- Graduate School of Biomedical Engineering , The University of New South Wales , Sydney , NSW 2052 , Australia
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Abstract
Capsid of tomato bushy stunt virus consists of an outer coat protein shell decorated on an internal skeleton comprising a β-annulus motif. We mimicked this capsid structure with our artificial viral capsid dressed up with protein. We synthesized the β-annulus peptide bearing a Cys at the C-terminal side and linked it with Cys34 of the human serum albumin (HSA) via a bismaleimide linker. The β-annulus peptide-HSA conjugate self-assembled into spherical structures of a 50-70 nm size range in the Tris-HCl buffer, with the ζ-potential of assemblies of such conjugate revealing that HSA proteins were displayed on the outer surface of the artificial viral capsid. Interestingly, the critical aggregation concentration (CAC) of the conjugate in the Tris-HCl buffer at 25 °C was approximately 0.01 μM, or 1/2500 lower than that of the unmodified β-annulus peptides, suggesting that the artificial viral capsids were stabilized via HSA modification. The present strategy of constructing protein nanocapsule by self-assembly of a β-annulus peptide-protein conjugate is simpler than that of previously reported protein nanocapsules.
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Nakamura Y, Inaba H, Matsuura K. Construction of Artificial Viral Capsids Encapsulating Short DNAs via Disulfide Bonds and Controlled Release of DNAs by Reduction. CHEM LETT 2019. [DOI: 10.1246/cl.190091] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yoko Nakamura
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552, Japan
| | - Hiroshi Inaba
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552, Japan
- Center for Research on Green Sustainable Chemistry, Tottori University, 4-101 Koyama-minami, Tottori 680-8552, Japan
| | - Kazunori Matsuura
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552, Japan
- Center for Research on Green Sustainable Chemistry, Tottori University, 4-101 Koyama-minami, Tottori 680-8552, Japan
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23
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Inaba H, Matsuura K. Peptide Nanomaterials Designed from Natural Supramolecular Systems. CHEM REC 2018; 19:843-858. [PMID: 30375148 DOI: 10.1002/tcr.201800149] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 10/07/2018] [Indexed: 12/22/2022]
Abstract
Natural supramolecular assemblies exhibit unique structural and functional properties that have been optimized over the course of evolution. Inspired by these natural systems, various bio-nanomaterials have been developed using peptides, proteins, and nucleic acids as components. Peptides are attractive building blocks because they enable the important domains of natural protein assemblies to be isolated and optimized while retaining the original structures and functions. Furthermore, the peptide subunits can be conjugated with exogenous molecules such as peptides, proteins, nucleic acids, and metal nanoparticles to generate advanced functions. In this personal account, we summarize recent progress in the construction of peptide-based nanomaterial designed from natural supramolecular systems, including (1) artificial viral capsids, (2) self-assembled nanofibers, and (3) protein-binding motifs. The peptides inspired by nature should provide new design principles for bio-nanomaterials.
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Affiliation(s)
- Hiroshi Inaba
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Koyama-Minami 4-101, Tottori, 680-8552, Japan.,Centre for Research on Green Sustainable Chemistry, Tottori University, Koyama-Minami 4-101, Tottori, 680-8552, Japan
| | - Kazunori Matsuura
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Koyama-Minami 4-101, Tottori, 680-8552, Japan.,Centre for Research on Green Sustainable Chemistry, Tottori University, Koyama-Minami 4-101, Tottori, 680-8552, Japan
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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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