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Rodríguez M, Castro-Acosta RM, Ruiz-Morales ER, Villanueva-Flores F, Ramírez OT, Palomares LA. A novel method for the in vitro assembly of virus-like particles and multimeric proteins. Biotechnol Lett 2021; 43:1155-1161. [PMID: 33638746 DOI: 10.1007/s10529-021-03093-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 02/03/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To develop a method for the efficient assembly of viral or multimeric proteins into virus-like particles (VLP) or other macro structures. RESULTS Protein monomers were assembled by eliminating calcium ions through precipitation. The model protein, rotavirus VP6, assembled into stable, long nanotubes with better quality than the assemblies obtained directly from cell culture. Nanotube length was directly proportional to the initial concentration of VP6 monomers, in accordance with the classic nucleation theory of capsid assembly. The quality of the obtained assemblies was confirmed when the nanotubes were functionalized with metals, yielding unique nanobiomaterials. Assembly efficiency was improved in comparison with other previously proposed methods. CONCLUSIONS The novel method presented here is simpler and faster than other reported methods for the assembly and disassembly of viral proteins, a step needed for most applications.
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Affiliation(s)
- Mabel Rodríguez
- Laboratorio Nacional para la Producción y Análisis de Moléculas y Medicamentos Biotecnológicos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, CP 62210, Cuernavaca, Morelos, Mexico
| | - Ricardo M Castro-Acosta
- Laboratorio Nacional para la Producción y Análisis de Moléculas y Medicamentos Biotecnológicos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, CP 62210, Cuernavaca, Morelos, Mexico
| | - Elias R Ruiz-Morales
- Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, CP 62210, Cuernavaca, Morelos, Mexico
| | - Francisca Villanueva-Flores
- Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, CP 62210, Cuernavaca, Morelos, Mexico
| | - Octavio T Ramírez
- Laboratorio Nacional para la Producción y Análisis de Moléculas y Medicamentos Biotecnológicos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, CP 62210, Cuernavaca, Morelos, Mexico.,Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, CP 62210, Cuernavaca, Morelos, Mexico
| | - Laura A Palomares
- Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, CP 62210, Cuernavaca, Morelos, Mexico.
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Passaretti P, Khan I, Dafforn TR, Goldberg Oppenheimer P. Improvements in the production of purified M13 bacteriophage bio-nanoparticle. Sci Rep 2020; 10:18538. [PMID: 33122639 PMCID: PMC7596064 DOI: 10.1038/s41598-020-75205-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/13/2020] [Indexed: 11/17/2022] Open
Abstract
M13 bacteriophage is a well-established versatile nano-building block, which can be employed to produce novel self-assembled functional materials and devices. Sufficient production and scalability of the M13, often require a large quantity of the virus and thus, improved propagation methods characterised by high capacity and degree of purity are essential. Currently, the 'gold-standard' is represented by infecting Escherichia coli cultures, followed by precipitation with polyethylene glycol (PEG). However, this is considerably flawed by the accumulation of contaminant PEG inside the freshly produced stocks, potentially hampering the reactivity of the individual M13 filaments. Our study demonstrates the effectiveness of implementing an isoelectric precipitation procedure to reduce the residual PEG along with FT-IR spectroscopy as a rapid, convenient and effective analytic validation method to detect the presence of this contaminant in freshly prepared M13 stocks.
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Affiliation(s)
- Paolo Passaretti
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, B15 2TT, UK.
| | - Inam Khan
- School of Metallurgy and Materials, University of Birmingham, Birmingham, B15 2TT, UK
| | - Timothy R Dafforn
- School of Biosciences, University of Birmingham, Birmingham, B15 2TT, UK
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Tong Q, Qiu N, Ji J, Ye L, Zhai G. Research Progress in Bioinspired Drug Delivery Systems. Expert Opin Drug Deliv 2020; 17:1269-1288. [PMID: 32543953 DOI: 10.1080/17425247.2020.1783235] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION To tackle challenges associated with traditional drug carriers, investigators have explored cells, cellular membrane, and macromolecular components including proteins and exosomes for the fabrication of delivery vehicles, owing to their excellent biocompatibility, lower toxicity, lower immunogenicity and similarities with the host. Biomacromolecule- and biomimetic nanoparticle (NP)-based drug/gene carriers are drawing immense attention, and biomimetic drug delivery systems (BDDSs) have been conceived and constructed. AREAS COVERED This review focuses on BDDS based on mammalian cells, including blood cells, cancer cells, adult stem cells, endogenous proteins, pathogens and extracellular vesicles (EVs). EXPERT OPINION Compared with traditional drug delivery systems (DDSs), BDDSs are based on biological nanocarriers, exhibiting superior biocompatibility, fewer side effects, natural targeting, and diverse modifications. In addition to directly employing natural biomaterials such as cells, proteins, pathogens and EVs as carriers, BDDSs offer these advantages by mimicking the structure of natural nanocarriers through bioengineering technologies. Furthermore, BDDSs demonstrate fewer limitations and irregularities than natural materials and can overcome several shortcomings associated with natural carriers. Although research remains ongoing to resolve these limitations, it is anticipated that BDDSs possess the potential to overcome challenges associated with traditional DDS, with a promising future in the treatment of human diseases.
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Affiliation(s)
- Qirong Tong
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University , Jinan, PR China
| | - Na Qiu
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University , Jinan, PR China
| | - Jianbo Ji
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University , Jinan, PR China
| | - Lei Ye
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University , Jinan, PR China
| | - Guangxi Zhai
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University , Jinan, PR China
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Nakanishi K, Tomita M, Tsumoto K. Membrane fusion and infection abilities of baculovirus virions are preserved during freezing and thawing in the presence of trehalose. Biosci Biotechnol Biochem 2019; 84:686-694. [PMID: 31852366 DOI: 10.1080/09168451.2019.1704396] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Budded viruses (BVs) of baculovirus such as Autographa californica nucleopolyhedrovirus (AcNPV) have recently been studied as biological nanomaterials, and methods for their longer-term storage without deterioration would be desirable. The cryopreservation of virions with a naturally occurring saccharide like trehalose as a cryoprotectant is known to be useful for maintaining the viral structure and function. In this study, we examined how useful trehalose is as protectant for BV cryopreservation during repeated freeze-thaw cycles: 1) membrane fusion between liposomes (multilamellar vesicles, MLVs) and BVs, 2) infection of insect culture cells (Sf9 cells) by RFP-expressing BVs, and 3) morphologies of these BVs were investigated by fluorescent dequenching assay, fluorescence microscopy, and transmission electron microscopy (TEM), respectively. The results suggest that the BVs deteriorate in quality with each freeze-thaw cycle, and this deterioration can be diminished with the use of trehalose to an extent similar to that seen with storage on ice.
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Affiliation(s)
- Kohei Nakanishi
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Japan
| | - Masahiro Tomita
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Japan
| | - Kanta Tsumoto
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Japan
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Paiva JS, Jorge PAS, Ribeiro RSR, Sampaio P, Rosa CC, Cunha JPS. Optical fiber-based sensing method for nanoparticle detection through supervised back-scattering analysis: a potential contributor for biomedicine. Int J Nanomedicine 2019; 14:2349-2369. [PMID: 31040661 PMCID: PMC6452810 DOI: 10.2147/ijn.s174358] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Background In view of the growing importance of nanotechnologies, the detection/identification of nanoparticles type has been considered of utmost importance. Although the characterization of synthetic/organic nanoparticles is currently considered a priority (eg, drug delivery devices, nanotextiles, theranostic nanoparticles), there are many examples of “naturally” generated nanostructures – for example, extracellular vesicles (EVs), lipoproteins, and virus – that provide useful information about human physiology or clinical conditions. For example, the detection of tumor-related exosomes, a specific type of EVs, in circulating fluids has been contributing to the diagnosis of cancer in an early stage. However, scientists have struggled to find a simple, fast, and low-cost method to accurately detect/identify these nanoparticles, since the majority of them have diameters between 100 and 150 nm, thus being far below the diffraction limit. Methods This study investigated if, by projecting the information provided from short-term portions of the back-scattered laser light signal collected by a polymeric lensed optical fiber tip dipped into a solution of synthetic nanoparticles into a lower features dimensional space, a discriminant function is able to correctly detect the presence of 100 nm synthetic nanoparticles in distilled water, in different concentration values. Results and discussion This technique ensured an optimal performance (100% accuracy) in detecting nanoparticles for a concentration above or equal to 3.89 µg/mL (8.74E+10 particles/mL), and a performance of 90% for concentrations below this value and higher than 1.22E−03 µg/mL (2.74E+07 particles/mL), values that are compatible with human plasmatic levels of tumor-derived and other types of EVs, as well as lipoproteins currently used as potential biomarkers of cardiovascular diseases. Conclusion The proposed technique is able to detect synthetic nanoparticles whose dimensions are similar to EVs and other “clinically” relevant nanostructures, and in concentrations equivalent to the majority of cell-derived, platelet-derived EVs and lipoproteins physiological levels. This study can, therefore, provide valuable insights towards the future development of a device for EVs and other biological nanoparticles detection with innovative characteristics.
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Affiliation(s)
- Joana S Paiva
- INESC Technology and Science, Porto, Portugal, .,Physics and Astronomy Department, Faculty of Sciences, University of Porto, Porto, Portugal, .,Faculty of Engineering, University of Porto, Porto, Portugal,
| | - Pedro A S Jorge
- INESC Technology and Science, Porto, Portugal, .,Physics and Astronomy Department, Faculty of Sciences, University of Porto, Porto, Portugal,
| | | | - Paula Sampaio
- Institute for Molecular and Cell Biology, i3S - Institute for Innovation and Research in Health, Porto, Portugal
| | - Carla C Rosa
- INESC Technology and Science, Porto, Portugal, .,Physics and Astronomy Department, Faculty of Sciences, University of Porto, Porto, Portugal,
| | - João P S Cunha
- INESC Technology and Science, Porto, Portugal, .,Faculty of Engineering, University of Porto, Porto, Portugal,
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Pang HH, Huang CY, Chou YW, Lin CJ, Zhou ZL, Shiue YL, Wei KC, Yang HW. Bioengineering fluorescent virus-like particle/RNAi nanocomplexes act synergistically with temozolomide to eradicate brain tumors. NANOSCALE 2019; 11:8102-8109. [PMID: 30982841 DOI: 10.1039/c9nr01247h] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The proof-of-concept strategy in this study based on biodegradable and biocompatible self-assembling fluorescent virus-like particle/RNAi nanocomplexes (VLP/RNAi) produced in Escherichia coli (E. coli) followed by surface modification with a cell-penetrating peptide (CPP) and an apolipoprotein E peptide (ApoEP) (dP@VLP/RNAi), which can cross the blood-brain barrier (BBB) to inhibit the DNA repair mechanism and act synergistically with temozolomide (TMZ) for promoting clinical chemotherapy has achieved good therapeutic effects towards malignant brain tumors. The synergistic value of this study's design was verified in intracranial mouse models of glioblastomas (GBMs). Intravenous administration of this formulation enhanced the curative efficacy of TMZ by downregulating the hepatocyte growth factor receptor (c-MET) gene in GBM U87 cells. Furthermore, upon gene-chemotherapy, the methylated DNA in GBM U87 cells was significantly enhanced by inhibiting the DNA repair mechanism, leading to significant brain tumor suppression. The results of this study could be critical for the design of RNAi-based genetic therapeutics for promoting chemotherapy against brain tumors.
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Affiliation(s)
- Hao-Han Pang
- Institute of Medical Science and Technology, National Sun Yat-sen University, 70 Lienhai Rd., Kaohsiung 80424, Taiwan.
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7
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Zheng Y, Lee PW, Wang C, Thomas LD, Stewart PL, Steinmetz NF, Pokorski JK. Freeze-Drying To Produce Efficacious CPMV Virus-like Particles. NANO LETTERS 2019; 19:2099-2105. [PMID: 30801195 PMCID: PMC7272238 DOI: 10.1021/acs.nanolett.9b00300] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In situ cancer vaccination that uses immune stimulating agents is revolutionizing the way that cancer is treated. In this realm, viruses and noninfectious virus-like particles have gained significant traction in reprogramming the immune system to recognize and eliminate malignancies. Recently, cowpea mosaic virus-like particles (VLPs) have shown exceptional promise in their ability to fight a variety of cancers. However, the current methods used to produce CPMV VLPs rely on agroinfiltration in plants. These protocols remain complicated and labor intensive and have the potential to introduce unwanted immunostimulatory agents, like lipopolysaccharides. This Letter describes a simple "post-processing" method to remove RNA from wild-type CPMV, while retaining the structure and function of the capsid. Lyophilization was able to eject encapsulated RNA to form lyo-eCPMV and, when purified, eliminated nearly all traces of encapsulated RNA. Lyo-eCPMV was characterized by cryo-electron microscopy single particle reconstruction to confirm the structural integrity of the viral capsid. Finally, lyo-eCPMV showed equivalent anticancer efficacy as eCPMV, produced by agroinfiltration, when using an invasive melanoma model. These results describe a straightforward method to prepare CPMV VLPs from infectious virions.
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Affiliation(s)
- Yi Zheng
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
| | - Parker W. Lee
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Chao Wang
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
| | - Linda D. Thomas
- Department of Pharmacology and Cleveland Center for Membrane and Structural Biology, Case Western Reserve University, Cleveland, Ohio 44106, United States
- School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Phoebe L. Stewart
- Department of Pharmacology and Cleveland Center for Membrane and Structural Biology, Case Western Reserve University, Cleveland, Ohio 44106, United States
- School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Nicole F. Steinmetz
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
- Department of Bioengineering, University of California San Diego, La Jolla, California 92093, United States
- Department of Radiology, University of California San Diego, La Jolla, California 92093, United States
- Moores Cancer Center, University of California San Diego, La Jolla, California 92093, United States
- School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Jonathan K. Pokorski
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
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8
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Panthu B, Ohlmann T, Perrier J, Schlattner U, Jalinot P, Elena-Herrmann B, Rautureau GJP. Cell-Free Protein Synthesis Enhancement from Real-Time NMR Metabolite Kinetics: Redirecting Energy Fluxes in Hybrid RRL Systems. ACS Synth Biol 2018; 7:218-226. [PMID: 28915016 DOI: 10.1021/acssynbio.7b00280] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A counterintuitive cell-free protein synthesis (CFPS) strategy, based on reducing the ribosomal fraction in rabbit reticulocyte lysate (RRL), triggers the development of hybrid systems composed of RRL ribosome-free supernatant complemented with ribosomes from different mammalian cell-types. Hybrid RRL systems maintain translational properties of the original ribosome cell types, and deliver protein expression levels similar to RRL. Here, we show that persistent ribosome-associated metabolic activity consuming ATP is a major obstacle for maximal protein yield. We provide a detailed picture of hybrid CFPS systems energetic metabolism based on real-time nuclear magnetic resonance (NMR) investigation of metabolites kinetics. We demonstrate that protein synthesis capacity has an upper limit at native ribosome concentration and that lower amounts of the ribosomal fraction optimize energy fluxes toward protein translation, consequently increasing CFPS yield. These results provide a rationalized strategy for further mammalian CFPS developments and reveal the potential of real-time NMR metabolism phenotyping for optimization of cell-free protein expression systems.
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Affiliation(s)
- Baptiste Panthu
- Univ. Lyon, ENS de Lyon, Univ. Claude Bernard, CNRS UMR 5239, INSERM U1210, Laboratory of Biology and Modelling of the Cell, 46 allée d’Italie Site Jacques Monod, F-69007 Lyon, France
| | - Théophile Ohlmann
- CIRI, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, Univ. Lyon, F-69007 Lyon, France
| | - Johan Perrier
- Univ. Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, F-69100 Villeurbanne, France
| | - Uwe Schlattner
- Univ. Grenoble Alpes, Laboratory of Fundamental and Applied Bioenergetics (LBFA), 38058 Grenoble cedex, France
| | - Pierre Jalinot
- Univ. Lyon, ENS de Lyon, Univ. Claude Bernard, CNRS UMR 5239, INSERM U1210, Laboratory of Biology and Modelling of the Cell, 46 allée d’Italie Site Jacques Monod, F-69007 Lyon, France
| | - Bénédicte Elena-Herrmann
- Univ. Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, F-69100 Villeurbanne, France
| | - Gilles J. P. Rautureau
- Univ. Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, F-69100 Villeurbanne, France
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9
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Fang PY, Bowman JC, Gómez Ramos L, Hsiao C, Williams LD. RNA: packaged and protected by VLPs. RSC Adv 2018; 8:21399-21406. [PMID: 35539947 PMCID: PMC9080931 DOI: 10.1039/c8ra02084a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 06/04/2018] [Indexed: 01/16/2023] Open
Abstract
VLP packaging is most efficient for compact RNA, and protects RNA against assault by small diffusible damaging agents.
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Affiliation(s)
- Po-Yu Fang
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
| | - Jessica C. Bowman
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
| | - Lizzette M. Gómez Ramos
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
- School of Chemical and Biomolecular Engineering
| | - Chiaolong Hsiao
- Institute of Biochemical Sciences
- National Taiwan University
- Taipei 10617
- Republic of China
| | - Loren Dean Williams
- School of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
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10
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Fang PY, Gómez Ramos L, Holguin SY, Hsiao C, Bowman JC, Yang HW, Williams LD. Functional RNAs: combined assembly and packaging in VLPs. Nucleic Acids Res 2017; 45:3519-3527. [PMID: 27903913 PMCID: PMC5399791 DOI: 10.1093/nar/gkw1154] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 10/24/2016] [Accepted: 11/21/2016] [Indexed: 01/09/2023] Open
Abstract
We describe here a one pot RNA production, packaging and delivery system based on bacteriophage Qβ. We demonstrate a method for production of a novel RNAi scaffold, packaged within Qβ virus-like particles (VLPs). The RNAi scaffold is a general utility chimera that contains a functional RNA duplex with paired silencing and carrier sequences stabilized by a miR-30 stem-loop. The Qβ hairpin on the 5΄ end confers affinity for the Qβ coat protein (CP). Silencing sequences can include mature miRNAs and siRNAs, and can target essentially any desired mRNA. The VLP-RNAi assembles upon co-expression of CP and the RNAi scaffold in E. coli. The annealing of the scaffold to form functional RNAs is intramolecular and is therefore robust and concentration independent. We demonstrate dose- and time-dependent inhibition of GFP expression in human cells with VLP-RNAi. In addition, we target the 3΄UTR of oncogenic Ras mRNA and suppress Pan-Ras expression, which attenuates cell proliferation and promotes mortality of brain tumor cells. This combination of RNAi scaffold design with Qβ VLP packaging is demonstrated to be target-specific and efficient.
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Affiliation(s)
- Po-Yu Fang
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Lizzette M. Gómez Ramos
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Stefany Y. Holguin
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Chiaolong Hsiao
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, Republic of China
| | - Jessica C. Bowman
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Hung-Wei Yang
- Institute of Biochemical Sciences, National Taiwan University, Taipei 10617, Taiwan, Republic of China
| | - Loren Dean Williams
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA
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Valkonen S, van der Pol E, Böing A, Yuana Y, Yliperttula M, Nieuwland R, Laitinen S, Siljander P. Biological reference materials for extracellular vesicle studies. Eur J Pharm Sci 2017; 98:4-16. [DOI: 10.1016/j.ejps.2016.09.008] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 09/06/2016] [Accepted: 09/06/2016] [Indexed: 01/05/2023]
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12
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Kim HJ, Kwag HL, Kim DG, Kang BK, Han SY, Moon H, Hwang JY, Kwon MG, Kang HA, Kim HJ. Assembly of the capsid protein of red-spotted grouper nervous necrosis virus during purification, and role of calcium ions in chromatography. BIOTECHNOL BIOPROC E 2016. [DOI: 10.1007/s12257-016-0256-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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13
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A novel chimeric influenza virosome containing Vesicular stomatitis G protein as a more efficient gene delivery system. Biotechnol Lett 2016; 38:1321-9. [PMID: 27169781 DOI: 10.1007/s10529-016-2108-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 04/27/2016] [Indexed: 02/04/2023]
Abstract
OBJECTIVES To enhance the efficiency of influenza virosome-mediated gene delivery by engineering this virosome. RESULTS A novel chimeric influenza virosome was constructed containing the glycoprotein of Vesicular stomatitis virus (VSV-G), along with its own hemagglutinin protein. To optimize the transfection efficiency of both chimeric and influenza cationic virosomes, HEK cells were transfected with plasmid DNA and virosomes and the transfection efficiency was assessed by FACS analysis. The chimeric virosome was significantly more efficient in mediating transfection for all amounts of DNA and virosomes compared to the influenza virosome. CONCLUSIONS Chimeric influenza virosome, including VSV-G, is superior to the conventional influenza virosome for gene delivery.
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14
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Punter MTJJM, Hernandez-Garcia A, Kraft DJ, de Vries R, van der Schoot P. Self-Assembly Dynamics of Linear Virus-Like Particles: Theory and Experiment. J Phys Chem B 2016; 120:6286-97. [DOI: 10.1021/acs.jpcb.6b02680] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | - Armando Hernandez-Garcia
- Laboratory
of Physical Chemistry and Colloid Science, Wageningen University and Research Centre, Dreijenplein 6, 6703
HB Wageningen, The Netherlands
| | - Daniela J. Kraft
- Soft
Matter Physics, Huygens-Kamerlingh Onnes Laboratory, Leiden University, PO Box 9504, 2300 RA Leiden, The Netherlands
| | - Renko de Vries
- Laboratory
of Physical Chemistry and Colloid Science, Wageningen University and Research Centre, Dreijenplein 6, 6703
HB Wageningen, The Netherlands
| | - Paul van der Schoot
- Theory
of Polymers and Soft Matter, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Theoretical Physics, Utrecht University, Leuvenlaan 4, 3584 CE Utrecht, The Netherlands
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15
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Hattori T, Nakanishi K, Mori T, Tomita M, Tsumoto K. The method used to culture host cells (Sf9 cells) can affect the qualities of baculovirus budding particles expressing recombinant proteins. Biosci Biotechnol Biochem 2016; 80:445-51. [DOI: 10.1080/09168451.2015.1101331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Abstract
Budded virus (BV) particles of baculovirus (Autographa californica nucleopolyhedrovirus, AcNPV) are harvested from the supernatant of liquid culture of Sf9 host cells by ultracentrifugation. Using polyacrylamide gel electrophoresis, Western blot and transmission electron microscopy (TEM) of BV samples fractionated closely by sucrose density gradient centrifugation, we observed that BVs exhibited different qualities depending on whether they had been harvested from the supernatant from a standing (static), shaking (suspension), or standing/shaking (pre-/post-infection) culture of Sf9 cells. The amount of BV protein apparently increased in the order of standing, standing/shaking, and shaking procedure, and the yield of intact particles showed an opposite trend. TEM observation clearly showed that appropriate fractions of the standing and standing/shaking cultures contained more intact BV particles than those from the shaking culture. These results suggest that the qualities of recombinant BV particles may be related to the culture conditions of the host cells.
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Affiliation(s)
- Tomomi Hattori
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Japan
| | - Kohei Nakanishi
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Japan
| | - Takaaki Mori
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Japan
| | - Masahiro Tomita
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Japan
| | - Kanta Tsumoto
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Japan
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