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Karan S, Durán-Meza AL, Chapman A, Tanimoto C, Chan SK, Knobler CM, Gelbart WM, Steinmetz NF. In Vivo Delivery of Spherical and Cylindrical In Vitro Reconstituted Virus-like Particles Containing the Same Self-Amplifying mRNA. Mol Pharm 2024; 21:2727-2739. [PMID: 38709860 DOI: 10.1021/acs.molpharmaceut.3c01105] [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: 05/08/2024]
Abstract
The dramatic effectiveness of recent mRNA (mRNA)-based COVID vaccines delivered in lipid nanoparticles has highlighted the promise of mRNA therapeutics in general. In this report, we extend our earlier work on self-amplifying mRNAs delivered in spherical in vitro reconstituted virus-like particles (VLPs), and on drug delivery using cylindrical virus particles. In particular, we carry out separate in vitro assemblies of a self-amplifying mRNA gene in two different virus-like particles: one spherical, formed with the capsid protein of cowpea chlorotic mottle virus (CCMV), and the other cylindrical, formed from the capsid protein of tobacco mosaic virus (TMV). The mRNA gene is rendered self-amplifying by genetically fusing it to the RNA-dependent RNA polymerase (RdRp) of Nodamura virus, and the relative efficacies of cell uptake and downstream protein expression resulting from their CCMV- and TMV-packaged forms are compared directly. This comparison is carried out by their transfections into cells in culture: expressions of two self-amplifying genes, enhanced yellow fluorescent protein (EYFP) and Renilla luciferase (Luc), packaged alternately in CCMV and TMV VLPs, are quantified by fluorescence and chemiluminescence levels, respectively, and relative numbers of the delivered mRNAs are measured by quantitative real-time PCR. The cellular uptake of both forms of these VLPs is further confirmed by confocal microscopy of transfected cells. Finally, VLP-mediated delivery of the self-amplifying-mRNA in mice following footpad injection is shown by in vivo fluorescence imaging to result in robust expression of EYFP in the draining lymph nodes, suggesting the potential of these plant virus-like particles as a promising mRNA gene and vaccine delivery modality. These results establish that both CCMV and TMV VLPs can deliver their in vitro packaged mRNA genes to immune cells and that their self-amplifying forms significantly enhance in situ expression. Choice of one VLP (CCMV or TMV) over the other will depend on which geometry of nucleocapsid is self-assembled more efficiently for a given length and sequence of RNA, and suggests that these plant VLP gene delivery systems will prove useful in a wide variety of medical applications, both preventive and therapeutic.
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Affiliation(s)
- Sweta Karan
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
- Center for Nano-ImmunoEngineering, University of California San Diego, La Jolla, California 92093, United States
- Shu and K. C. Chien and Peter Farrell Collaboratory, University of California San Diego, La Jolla, California 92093, United States
| | - Ana Luisa Durán-Meza
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Abigail Chapman
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Cheylene Tanimoto
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Soo Khim Chan
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
- Center for Nano-ImmunoEngineering, University of California San Diego, La Jolla, California 92093, United States
| | - Charles M Knobler
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - William M Gelbart
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
- UCLA Molecular Biology Institute, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Nicole F Steinmetz
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
- Center for Nano-ImmunoEngineering, University of California San Diego, La Jolla, California 92093, United States
- Institute for Materials Discovery and Design, 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
- Center for Engineering in Cancer, Institute for Engineering in Medicine, University of California, San Diego, La Jolla, California 92093, United States
- Shu and K. C. Chien and Peter Farrell Collaboratory, University of California San Diego, La Jolla, California 92093, United States
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Chung YH, Zhao Z, Jung E, Omole AO, Wang H, Sutorus L, Steinmetz NF. Systemic Administration of Cowpea Mosaic Virus Demonstrates Broad Protection Against Metastatic Cancers. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308237. [PMID: 38430536 PMCID: PMC11095214 DOI: 10.1002/advs.202308237] [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: 10/30/2023] [Revised: 12/21/2023] [Indexed: 03/04/2024]
Abstract
The key challenge in cancer treatment is prevention of metastatic disease which is therapeutically resistant and carries poor prognoses necessitating efficacious prophylactic approaches that prevent metastasis and recurrence. It is previously demonstrated that cowpea mosaic virus (CPMV) induces durable antitumor responses when used in situ, i.e., intratumoral injection. As a new direction, it is showed that CPMV demonstrates widespread effectiveness as an immunoprophylactic agent - potent efficacy is demonstrated in four metastatic models of colon, ovarian, melanoma, and breast cancer. Systemic administration of CPMV stimulates the innate immune system, enabling attack of cancer cells; processing of the cancer cells and associated antigens leads to systemic, durable, and adaptive antitumor immunity. Overall, CPMV demonstrated broad efficacy as an immunoprophylactic agent in the rejection of metastatic cancer.
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Affiliation(s)
- Young Hun Chung
- Department of BioengineeringUniversity of California, San DiegoLa JollaCA92093USA
- Moores Cancer CenterUniversity of California, San DiegoLa JollaCA92093USA
| | - Zhongchao Zhao
- Moores Cancer CenterUniversity of California, San DiegoLa JollaCA92093USA
- Department of NanoEngineeringUniversity of California, San DiegoLa JollaCA92093USA
- Center for Nano‐ImmunoEngineeringUniversity of California, San DiegoLa JollaCA92093USA
| | - Eunkyeong Jung
- Department of NanoEngineeringUniversity of California, San DiegoLa JollaCA92093USA
| | - Anthony O. Omole
- Department of NanoEngineeringUniversity of California, San DiegoLa JollaCA92093USA
| | - Hanyang Wang
- Department of BiologyUniversity of California, San DiegoLa JollaCA92093USA
| | - Lucas Sutorus
- Department of NanoEngineeringUniversity of California, San DiegoLa JollaCA92093USA
| | - Nicole F. Steinmetz
- Department of BioengineeringUniversity of California, San DiegoLa JollaCA92093USA
- Moores Cancer CenterUniversity of California, San DiegoLa JollaCA92093USA
- Department of NanoEngineeringUniversity of California, San DiegoLa JollaCA92093USA
- Center for Nano‐ImmunoEngineeringUniversity of California, San DiegoLa JollaCA92093USA
- Department of RadiologyUniversity of California, San DiegoLa JollaCA92093USA
- Institute for Materials Discovery and DesignUniversity of California, San DiegoLa JollaCA92093USA
- Center for Engineering in CancerUniversity of California, San DiegoLa JollaCA92093USA
- Shu and K.C. Chien and Peter Farrell CollaboratoryUniversity of California, San DiegoLa JollaCA92093USA
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Phiri K, Grill L. Development of a Candidate TMV Epitope Display Vaccine against SARS-CoV-2. Vaccines (Basel) 2024; 12:448. [PMID: 38793699 PMCID: PMC11125883 DOI: 10.3390/vaccines12050448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/16/2024] [Accepted: 04/18/2024] [Indexed: 05/26/2024] Open
Abstract
Essential in halting the COVID-19 pandemic caused by SARS-CoV-2, it is crucial to have stable, effective, and easy-to-manufacture vaccines. We developed a potential vaccine using a tobacco mosaic virus (TMV) epitope display model presenting peptides derived from the SARS-CoV-2 spike protein. The TMV-epitope fusions in laboratory tests demonstrated binding to the SARS-CoV-2 polyclonal antibodies. The fusion constructs maintained critical epitopes of the SARS-CoV-2 spike protein, and two in particular spanned regions of the receptor-binding domain that have mutated in the more recent SARS-CoV-2 variants. This would allow for the rapid modification of vaccines in response to changes in circulating variants. The TMV-peptide fusion constructs also remained stable for over 28 days when stored at temperatures between -20 and 37 °C, an ideal property when targeting developing countries. Immunogenicity studies conducted on BALB/c mice elicited robust antibody responses against SARS-CoV-2. A strong IFNγ response was also observed in immunized mice. Three of the six TMV-peptide fusion constructs produced virus-neutralizing titers, as measured with a pseudovirus neutralization assay. These TMV-peptide fusion constructs can be combined to make a multivalent vaccine that could be adapted to meet changing virus variants. These findings demonstrate the development of a stable COVID-19 vaccine candidate by combining SARS-CoV-2 spike protein-derived peptides presented on the surface of a TMV nanoparticle.
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Affiliation(s)
- Kelvin Phiri
- Henry E. Riggs School of Applied Life Sciences, Keck Graduate Institute, Claremont, CA 91711, USA;
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Li Y, Wang R, Liu X, Li K, Xu Q. Recent advances in MOF-bio-interface: a review. NANOTECHNOLOGY 2023; 34:202002. [PMID: 36796094 DOI: 10.1088/1361-6528/acbc81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Metal-organic frameworks (MOFs), as a class of promising material with adjustable function and controllable structure, have been widely used in the food industry, chemical industry, biological medicine, and sensors. Biomacromolecules and living systems play a critical role in the world. However, the insufficiency in stability, recyclability, and efficiency, significantly impedes their further utilization in slightly harsh conditions. MOF-bio-interface engineering effectively address the above-mentioned shortages of biomacromolecules and living systems, and thereby attracting considerable attentions. Herein, we systematically review the achievements in the area of MOF-bio-interface. In particular, we summarize the interface between MOFs and proteins (enzymes and non-enzymatic proteins), polysaccharides, DNA, cells, microbes, and viruses. Meanwhile, we discuss the limitations of this approach and propose future research directions. We expect that this review could provide new insights and inspire new research efforts towards life science and material science.
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Affiliation(s)
- Yingfeng Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, People's Republic of China
| | - Ru Wang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, People's Republic of China
| | - Xue Liu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, People's Republic of China
| | - Ke Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, People's Republic of China
| | - Qing Xu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, People's Republic of China
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The Plant Viruses and Molecular Farming: How Beneficial They Might Be for Human and Animal Health? Int J Mol Sci 2023; 24:ijms24021533. [PMID: 36675043 PMCID: PMC9863966 DOI: 10.3390/ijms24021533] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 01/04/2023] [Accepted: 01/06/2023] [Indexed: 01/15/2023] Open
Abstract
Plant viruses have traditionally been studied as pathogens in the context of understanding the molecular and cellular mechanisms of a particular disease affecting crops. In recent years, viruses have emerged as a new alternative for producing biological nanomaterials and chimeric vaccines. Plant viruses were also used to generate highly efficient expression vectors, revolutionizing plant molecular farming (PMF). Several biological products, including recombinant vaccines, monoclonal antibodies, diagnostic reagents, and other pharmaceutical products produced in plants, have passed their clinical trials and are in their market implementation stage. PMF offers opportunities for fast, adaptive, and low-cost technology to meet ever-growing and critical global health needs. In this review, we summarized the advancements in the virus-like particles-based (VLPs-based) nanotechnologies and the role they played in the production of advanced vaccines, drugs, diagnostic bio-nanomaterials, and other bioactive cargos. We also highlighted various applications and advantages plant-produced vaccines have and their relevance for treating human and animal illnesses. Furthermore, we summarized the plant-based biologics that have passed through clinical trials, the unique challenges they faced, and the challenges they will face to qualify, become available, and succeed on the market.
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Plug-and-Display Photo-Switchable Systems on Plant Virus Nanoparticles. BIOTECH (BASEL (SWITZERLAND)) 2022; 11:biotech11040049. [PMID: 36278561 PMCID: PMC9589989 DOI: 10.3390/biotech11040049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/09/2022] [Accepted: 10/19/2022] [Indexed: 11/06/2022]
Abstract
Light can be used to regulate protein interactions with a high degree of spatial and temporal precision. Photo-switchable systems therefore allow the development of controllable protein complexes that can influence various cellular and molecular processes. Here, we describe a plant virus-based nanoparticle shuttle for the distribution of proteins that can be released when exposed to light. Potato virus X (PVX) is often used as a presentation system for heterologous proteins and epitopes, and has ideal properties for biomedical applications such as good tissue penetration and the ability to form hydrogels that present signaling molecules and promote cell adhesion. In this study, we describe three different systems attached to the surface of PVX particles: LOVTRAP, BphP1/QPAS1 and Dronpa145N. We demonstrated the functionality of all three photo-switchable protein complexes in vitro and the successful loading and unloading of PVX particles. The new systems provide the basis for promising applications in the biomedical and biomaterial sciences.
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Shin MD, Ortega-Rivera OA, Steinmetz NF. Multivalent Display of ApoAI Peptides on the Surface of Tobacco Mosaic Virus Nanotubes Improves Cholesterol Efflux. Bioconjug Chem 2022; 33:1922-1933. [PMID: 36191144 PMCID: PMC9772860 DOI: 10.1021/acs.bioconjchem.2c00371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Atherosclerosis is a progressive cardiovascular disease in which cholesterol-rich plaques build up within arteries, increasing the risk of thrombosis, myocardial infarction, and stroke. One promising therapeutic approach is the use of high-density lipoprotein (HDL) biomimetic formulations based on ApoAI peptides that promote cholesterol efflux from plaques, ultimately leading to cholesterol excretion. Here, we describe the multivalent display of ApoAI peptides on the surface of protein nanotubes derived from the plant virus tobacco mosaic virus (TMV) and protein nanoparticles using virus-like particles from bacteriophage Qβ. Bioconjugation yielded ApoAI conjugates varying in size and morphology. We tested ABCA1-mediated cholesterol efflux using macrophage foam cells, the mitigation of reactive oxygen species in endothelial cells, and wound healing in endothelial cells. We found that the multivalent ApoAI platform, in particular the TMV-based nanotube, significantly improved the efficacy of cholesterol efflux compared to free peptides, Qβ nanoparticle formulations, and traditional HDL therapy. Finally, to better understand the mechanistic basis of enhanced cholesterol efflux, we used confocal microscopy to show that while native TMV was taken up by cells, TMV-ApoAI remained at the exterior of foam cell membranes and efflux was documented using fluorescent cholesterol. Together, these data highlight that high aspect ratio materials with multivalent display of ApoAI peptides offer unique capabilities promoting efficient cholesterol efflux and may find applications in cardiovascular therapy.
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Affiliation(s)
- Matthew D. Shin
- Department of NanoEngineering and, Center for Nano-ImmunoEngineering, University of, California San Diego, La Jolla, California 92039, United, States
| | - Oscar A. Ortega-Rivera
- Department of NanoEngineering and Center for Nano-ImmunoEngineering, University of California San Diego, La Jolla, California 92039, United, States
| | - Nicole F. Steinmetz
- Department of NanoEngineering, Center for Nano-ImmunoEngineering, Department of Bioengineering, Department of Radiology, Moores Cancer, Center, and Institute for Materials Discovery and Design, University of California San Diego, La Jolla, California, 92039, United States
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8
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González-Gamboa I, Caparco AA, McCaskill JM, Steinmetz NF. Bioconjugation Strategies for Tobacco Mild Green Mosaic Virus. Chembiochem 2022; 23:e202200323. [PMID: 35835718 PMCID: PMC9624232 DOI: 10.1002/cbic.202200323] [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: 06/07/2022] [Revised: 07/03/2022] [Indexed: 11/06/2022]
Abstract
Tobacco mild green mosaic virus (TMGMV) is a plant virus closely related to Tobacco mosaic virus (TMV), sharing many of its structural and chemical features. These rod-shaped viruses, comprised of 2130 identical coat protein subunits, have been utilized as nanotechnological platforms for a myriad of applications, ranging from drug delivery to precision agriculture. This versatility for functionalization is due to their chemically active external and internal surfaces. While both viruses are similar, they do exhibit some key differences in their surface chemistry, suggesting the reactive residue distribution on TMGMV should not overlap with TMV. In this work, we focused on the establishment and refinement of chemical bioconjugation strategies to load molecules into or onto TMGMV for targeted delivery. A combination of NHS, EDC, and diazo coupling reactions in combination with click chemistry were used to modify the N-terminus, glutamic/aspartic acid residues, and tyrosines in TMGMV. We report loading with over 600 moieties per TMGMV via diazo-coupling, which is a >3-fold increase compared to previous studies. We also report that cargo can be loaded to the solvent-exposed N-terminus and carboxylates on the exterior/interior surfaces. Mass spectrometry revealed the most reactive sites to be Y12 and Y72, both tyrosine side chains are located on the exterior surface. For the carboxylates, interior E106 (66.53 %) was the most reactive for EDC-propargylamine coupled reactions, with the exterior E145 accounting for >15 % reactivity, overturning previous assumptions that only interior glutamic acid residues are accessible. A deeper understanding of the chemical properties of TMGMV further enables its functionalization and use as a multifunctional nanocarrier platform for applications in medicine and precision farming.
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Affiliation(s)
- Ivonne González-Gamboa
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
| | - Adam A Caparco
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
| | - Justin M McCaskill
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
| | - Nicole F Steinmetz
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
- Department of Bioengineering, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
- Department of Radiology, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
- Center for Nano-ImmunoEngineering, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
- Institute for Materials Discovery and Design, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
- Moores Cancer Center, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
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Monroy-Borrego AG, Steinmetz NF. Three methods for inoculation of viral vectors into plants. FRONTIERS IN PLANT SCIENCE 2022; 13:963756. [PMID: 36110356 PMCID: PMC9468707 DOI: 10.3389/fpls.2022.963756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
Agriculture is facing new challenges, with global warming modifying the survival chances for crops, and new pests on the horizon. To keep up with these challenges, gene delivery provides tools to increase crop yields. On the other hand, gene delivery also opens the door for molecular farming of pharmaceuticals in plants. However, towards increased food production and scalable molecular farming, there remain technical difficulties and regulatory hurdles to overcome. The industry-standard is transformation of plants via Agrobacterium tumefaciens, but this method is limited to certain plants, requires set up of plant growth facilities and fermentation of bacteria, and introduces lipopolysaccharides contaminants into the system. Therefore, alternate methods are needed. Mechanical inoculation and spray methods have already been discussed in the literature - and here, we compare these methods with a newly introduced petiole injection technique. Because our interest lies in the development of plant viruses as immunotherapies targeting human health as well as gene delivery vectors for agriculture applications, we turned toward tobacco mosaic virus as a model system. We studied the effectiveness of three inoculation techniques: mechanical inoculation, Silwet-77 foliar spray and petiole injections. The foliar spray method was optimized, and we used 0.03% Silwet L-77 to induce infection using either TMV or a lysine-added mutant TMV-Lys. We developed a method using a needle-laden syringe to target and inject the plant virus directly into the vasculature of the plant - we tested injection into the stem and petiole. Stem inoculation resulted in toxicity, but the petiole injection technique was established as a viable strategy. TMV and TMV-Lys were purified from single plants and pooled leaf samples - overall there was little variation between the techniques, as measured by TMV or TMV-Lys yields, highlighting the feasibility of the syringe injection technique to produce virus nanoparticles. There was variation between yields from preparation to preparation with mechanical, spray and syringe inoculation yielding 40-141 mg, 36-56 mg, 18-56 mg TMV per 100 grams of leaves. Similar yields were obtained using TMV-Lys, with 24-38 mg, 17-28, 7-36 mg TMV-Lys per 100 grams of leaves for mechanical, spray and syringe inoculation, respectively. Each method has its advantages: spray inoculation is highly scalable and therefore may find application for farming, the syringe inoculation could provide a clean, aseptic, and controlled approach for molecular farming of pharmaceuticals under good manufacturing protocols (GMP) and would even be applicable for gene delivery to plants in space.
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Affiliation(s)
- Andrea G. Monroy-Borrego
- Department of NanoEngineering, University of California, San Diego, San Diego, CA, United States
| | - Nicole F. Steinmetz
- Department of NanoEngineering, University of California, San Diego, San Diego, CA, United States
- Department of Bioengineering, University of California, San Diego, San Diego, CA, United States
- Department of Radiology, University of California, San Diego, San Diego, CA, United States
- Center for Nano-ImmunoEngineering, University of California, San Diego, San Diego, CA, United States
- Moores Cancer Center, University of California, San Diego, San Diego, CA, United States
- Institute for Materials Discovery and Design, University of California, San Diego, San Diego, CA, United States
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Biomimetic mineralization: An emerging organism engineering strategy for biomedical applications. J Inorg Biochem 2022; 232:111815. [DOI: 10.1016/j.jinorgbio.2022.111815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/03/2022] [Accepted: 04/02/2022] [Indexed: 11/21/2022]
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Chan SK, Steinmetz NF. Isolation of Tobacco Mosaic Virus-Binding Peptides for Biotechnology Applications. Chembiochem 2022; 23:e202200040. [PMID: 35320626 PMCID: PMC9262120 DOI: 10.1002/cbic.202200040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/17/2022] [Indexed: 11/09/2022]
Abstract
Tobacco mosaic virus (TMV) was the first virus to be discovered and it is now widely used as a tool for biological research and biotechnology applications. TMV particles can be decorated with functional molecules by genetic engineering or bioconjugation. However, this can destabilize the nanoparticles, and/or multiple rounds of modification may be necessary, reducing product yields and preventing the display of certain cargo molecules. To overcome these challenges, we used phage display technology and biopanning to isolate a TMV-binding peptide (TBPT25 ) with strong binding properties (IC50 =0.73 μM, KD =0.16 μM), allowing the display of model cargos via a single mixing step. The TMV-binding peptide is specific for TMV but does not recognize free coat proteins and can therefore be used to decorate intact TMV or detect intact TMV particles in crude plant sap.
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Affiliation(s)
- Soo Khim Chan
- Department of Nanoengineering, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
| | - Nicole F Steinmetz
- Department of NanoEngineering, Department of Bioengineering, Department of Radiology, Center for Nano-ImmunoEngineering, Moores Cancer Center, Institute for Materials Discovery and Design, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
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Kondakova OA, Evtushenko EA, Baranov OA, Nikitin NA, Karpova OV. Structurally Modified Plant Viruses and Bacteriophages with Helical Structure. Properties and Applications. BIOCHEMISTRY (MOSCOW) 2022; 87:548-558. [PMID: 35790410 PMCID: PMC9201271 DOI: 10.1134/s0006297922060062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Structurally modified virus particles can be obtained from the rod-shaped or filamentous virions of plant viruses and bacteriophages by thermal or chemical treatment. They have recently attracted attention of the researchers as promising biogenic platforms for the development of new biotechnologies. This review presents data on preparation, structure, and properties of the structurally modified virus particles. In addition, their biosafety for animals is considered, as well as the areas of application of such particles in biomedicine. A separate section is devoted to one of the most relevant and promising areas for the use of structurally modified plant viruses – design of vaccine candidates based on them.
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Affiliation(s)
- Olga A Kondakova
- Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | | | - Oleg A Baranov
- Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Nikolai A Nikitin
- Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Olga V Karpova
- Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
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Functionalizing silica sol-gel with entrapped plant virus-based immunosorbent nanoparticles. J Nanobiotechnology 2022; 20:105. [PMID: 35246160 PMCID: PMC8895542 DOI: 10.1186/s12951-022-01303-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 02/08/2022] [Indexed: 11/22/2022] Open
Abstract
Advancements in understanding and engineering of virus-based nanomaterials (VBNs) for biomedical applications motivate a need to explore the interfaces between VBNs and other biomedically-relevant chemistries and materials. While several strategies have been used to investigate some of these interfaces with promising initial results, including VBN-containing slow-release implants and VBN-activated bioceramic bone scaffolds, there remains a need to establish VBN-immobilized three dimensional materials that exhibit improved stability and diffusion characteristics for biosensing and other analyte-capture applications. Silica sol–gel chemistries have been researched for biomedical applications over several decades and are well understood; various cellular organisms and biomolecules (e.g., bacteria, algae, enzymes) have been immobilized in silica sol-gels to improve viability, activity, and form factor (i.e., ease of use). Here we present the immobilization of an antibody-binding VBN in silica sol–gel by pore confinement. We have shown that the resulting system is sufficiently diffuse to allow antibodies to migrate in and out of the matrix. We also show that the immobilized VBN is capable of antibody binding and elution functionality under different buffer conditions for multiple use cycles. The promising results of the VBN and silica sol–gel interface indicate a general applicability for VBN-based bioseparations and biosensing applications.
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14
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Xie A, Tsvetkova I, Liu Y, Ye X, Hewavitharanage P, Dragnea B, Cadena-Nava RD. Hydrophobic Cargo Encapsulation into Virus Protein Cages by Self-Assembly in an Aprotic Organic Solvent. Bioconjug Chem 2021; 32:2366-2376. [PMID: 34730939 DOI: 10.1021/acs.bioconjchem.1c00420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
While extensive studies of virus capsid assembly in environments mimicking in vivo conditions have led to an understanding of the thermodynamic driving forces at work, applying this knowledge to virus assembly in other solvents than aqueous buffers has not been attempted yet. In this study, Brome mosaic virus (BMV) capsid proteins were shown to preserve their self-assembly abilities in an aprotic polar solvent, dimethyl sulfoxide (DMSO). This facilitated protein cage encapsulation of nanoparticles and dye molecules that favor organic solvents, such as β-NaYF4-based upconversion nanoparticles and BODIPY dye. Assembly was found to be robust relative to a surprisingly broad range of DMSO concentrations. Cargos with poor initial stability in aqueous solutions were readily encapsulated at high DMSO concentrations and then transferred to aqueous solvents, where they remained stable and preserved their function for months.
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Affiliation(s)
- Amberly Xie
- Department of Chemistry, Indiana University, 800 E Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Irina Tsvetkova
- Department of Chemistry, Indiana University, 800 E Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Yang Liu
- Department of Chemistry, Indiana University, 800 E Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Xingchen Ye
- Department of Chemistry, Indiana University, 800 E Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Priyadarshine Hewavitharanage
- Chemistry Department, University of Southern Indiana, 8600 University Boulevard, Evansville, Indiana 47712, United States
| | - Bogdan Dragnea
- Department of Chemistry, Indiana University, 800 E Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Ruben D Cadena-Nava
- Department of Chemistry, Indiana University, 800 E Kirkwood Avenue, Bloomington, Indiana 47405, United States
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15
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Nkanga CI, Chung YH, Shukla S, Zhou J, Jokerst JV, Steinmetz NF. The in vivo fate of tobacco mosaic virus nanoparticle theranostic agents modified by the addition of a polydopamine coat. Biomater Sci 2021; 9:7134-7150. [PMID: 34591046 PMCID: PMC8600448 DOI: 10.1039/d1bm01113h] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Plant virus nanoparticles (VNPs) have multiple advantages over their synthetic counterparts including the cost-effective large-scale manufacturing of uniform particles that are easy to functionalize. Tobacco mosaic virus (TMV) is one of the most promising VNP scaffolds, reflecting its high aspect ratio and ability to carry and/or display multivalent therapeutic ligands and contrast agents. Here we investigated the circulation, protein corona, immunogenicity, and organ distribution/clearance of TMV particles internally co-labeled with cyanine 5 (Cy5) and chelated gadolinium (Gd) for dual tracking by fluorescence imaging and optical emission spectrometry, with or without an external coating of polydopamine (PDA) to confer photothermal and photoacoustic capabilities. The PDA-coated particles (Gd-Cy5-TMV-PDA) showed a shorter plasma circulation time and broader distribution to organs of the reticuloendothelial system (liver, lungs, and spleen) than uncoated Gd-Cy5-TMV particles (liver and spleen only). The Gd-Cy5-TMV-PDA particles were surrounded by 2-10-fold greater protein corona (containing mainly immunoglobulins) compared to Gd-Cy5-TMV particles. However, the enzyme-linked immunosorbent assay (ELISA) revealed that PDA-coated particles bind 2-fold lesser to anti-TMV antibodies elicited by particle injection than uncoated particles, suggesting that the PDA coat enables evasion from systemic antibody surveillance. Gd-Cy5-TMV-PDA particles were cleared from organs after 8 days compared to 5 days for the uncoated particles. The slower tissue clearance of the coated particles makes them ideal for theranostic applications by facilitating sustained local delivery in addition to multimodal imaging and photothermal capabilities. We have demonstrated the potential of PDA-coated proteinaceous nanoparticles for multiple biomedical applications.
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Affiliation(s)
- Christian Isalomboto Nkanga
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92039, USA.
| | - Young Hun Chung
- Department of Bioengineering, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92039, USA
| | - Sourabh Shukla
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92039, USA.
| | - Jingcheng Zhou
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92039, USA.
| | - Jesse V Jokerst
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92039, USA.
- Materials Science and Engineering Program, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92039, USA
- Department of Radiology, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92039, USA
| | - Nicole F Steinmetz
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92039, USA.
- Department of Bioengineering, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92039, USA
- Department of Radiology, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92039, USA
- Center for Nano-ImmunoEngineering, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92039, USA
- Moores Cancer Center, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92039, USA
- Institute for Materials Discovery and Design, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92039, USA
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16
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Aljabali AAA, Hassan S, Pabari RM, Shahcheraghi SH, Mishra V, Charbe NB, Chellappan DK, Dureja H, Gupta G, Almutary AG, Alnuqaydan AM, Verma SK, Panda PK, Mishra YK, Serrano-Aroca Á, Dua K, Uversky VN, Redwan EM, Bahar B, Bhatia A, Negi P, Goyal R, McCarron P, Bakshi HA, Tambuwala MM. The viral capsid as novel nanomaterials for drug delivery. Future Sci OA 2021; 7:FSO744. [PMID: 34737885 PMCID: PMC8558853 DOI: 10.2144/fsoa-2021-0031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 06/14/2021] [Indexed: 12/11/2022] Open
Abstract
The purpose of this review is to highlight recent scientific developments and provide an overview of virus self-assembly and viral particle dynamics. Viruses are organized supramolecular structures with distinct yet related features and functions. Plant viruses are extensively used in biotechnology, and virus-like particulate matter is generated by genetic modification. Both provide a material-based means for selective distribution and delivery of drug molecules. Through surface engineering of their capsids, virus-derived nanomaterials facilitate various potential applications for selective drug delivery. Viruses have significant implications in chemotherapy, gene transfer, vaccine production, immunotherapy and molecular imaging.
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Affiliation(s)
- Alaa AA Aljabali
- Faculty of Pharmacy, Department of Pharmaceutics & Pharmaceutical Technology, Yarmouk University, Irbid, 21163, Jordan
| | - Sk Sarif Hassan
- Department of Mathematics, Pingla Thana Mahavidyalaya, Paschim Medinipur, India
| | - Ritesh M Pabari
- School of Pharmacy, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Seyed H Shahcheraghi
- Infectious Diseases Research Center, Shahid Sadoughi Hospital, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Vijay Mishra
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Nitin B Charbe
- Department of Pharmaceutical Sciences, Rangel College of Pharmacy, Texas A&M University, Kingsville, TX 78363, USA
| | - Dinesh K Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Bukit Jalil, Kuala Lumpur, 57000, Malaysia
| | - Harish Dureja
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, 124001, India
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Mahal Road, Jagatpura, Jaipur, 302017, India
| | - Abdulmajeed G Almutary
- Department of Medical Biotechnology, College of Applied Medical Sciences, Qassim University, Saudi Arabia
| | - Abdullah M Alnuqaydan
- Department of Medical Biotechnology, College of Applied Medical Sciences, Qassim University, Saudi Arabia
| | - Suresh K Verma
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics & Astronomy, Uppsala University, Uppsala, 75120, Sweden
| | - Pritam K Panda
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics & Astronomy, Uppsala University, Uppsala, 75120, Sweden
| | - Yogendra Kumar Mishra
- University of Southern Denmark, Mads Clausen Institute, NanoSYD, Alsion 2, Sønderborg 6400, Denmark
| | - Ángel Serrano-Aroca
- Biomaterials & Bioengineering Lab, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, Valencia, 46001, Spain
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology, Sydney, Australia
| | - Vladimir N Uversky
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Elrashdy M Redwan
- King Abdulazizi University, Faculty of Science, Department of Biological Science, Saudi Arabia
| | - Bojlul Bahar
- International Institute of Nutritional Sciences & Food Safety Studies, School of Sport & Health Sciences, University of Central Lancashire, Preston, Lancashire, PR1 2HE, UK
| | - Amit Bhatia
- Maharaja Ranjit Singh Punjab Technical University Dabwali Road, Bathinda, Punjab, 151001, India
| | - Poonam Negi
- School of Pharmaceutical Sciences, Shoolini University of Biotechnology & Management Sciences, Solan, 173229, India
| | - Rohit Goyal
- School of Pharmaceutical Sciences, Shoolini University of Biotechnology & Management Sciences, Solan, 173229, India
| | - Paul McCarron
- School of Pharmacy & Pharmaceutical Science, Ulster University, Coleraine, County Londonderry, Northern Ireland, BT52 1SA, UK
| | - Hamid A Bakshi
- School of Pharmacy & Pharmaceutical Science, Ulster University, Coleraine, County Londonderry, Northern Ireland, BT52 1SA, UK
| | - Murtaza M Tambuwala
- School of Pharmacy & Pharmaceutical Science, Ulster University, Coleraine, County Londonderry, Northern Ireland, BT52 1SA, UK
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17
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Schuphan J, Commandeur U. Analysis of Engineered Tobacco Mosaic Virus and Potato Virus X Nanoparticles as Carriers for Biocatalysts. FRONTIERS IN PLANT SCIENCE 2021; 12:710869. [PMID: 34421958 PMCID: PMC8377429 DOI: 10.3389/fpls.2021.710869] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 06/24/2021] [Indexed: 06/13/2023]
Abstract
Plant virus nanoparticles are promising candidates for the development of novel materials, including nanocomposites and scaffolds/carriers for functional molecules such as enzymes. Their advantages for enzyme immobilization include a modular organization, a robust and programmable structure, and a simple, cost-effective production. However, the activity of many enzymes relies on posttranslational modification and most plant viruses replicate in the cytoplasm, so functional enzymes cannot be displayed on the virus surface by direct coat protein fusions. An alternative display system to present the Trichoderma reesei endoglucanase Cel12A on potato virus X (PVX) using SpyTag/SpyCatcher (ST/SC) technology was recently developed by the authors, which allows the carrier and enzyme to be produced separately before isopeptide conjugation. Although kinetic analysis clearly indicated efficient biocatalyst activity, the PVX carrier interfered with substrate binding. To overcome this, the suitability of tobacco mosaic virus (TMV) was tested, which can also accommodate a larger number of ST peptides. We produced TMV particles displaying ST as a new platform for the immobilization of enzymes such as Cel12A, and compared its performance to the established PVX-ST platform in terms of catalytic efficiency. Although more enzyme molecules were immobilized on the TMV-ST particles, we found that the rigid scaffold and helical spacing significantly affected enzyme activity.
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18
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Lumata JL, Ball D, Shahrivarkevishahi A, Luzuriaga MA, Herbert FC, Brohlin O, Lee H, Hagge LM, D'Arcy S, Gassensmith JJ. Identification and physical characterization of a spontaneous mutation of the tobacco mosaic virus in the laboratory environment. Sci Rep 2021; 11:15109. [PMID: 34302022 PMCID: PMC8302582 DOI: 10.1038/s41598-021-94561-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 07/09/2021] [Indexed: 11/09/2022] Open
Abstract
Virus-like particles are an emerging class of nano-biotechnology with the Tobacco Mosaic Virus (TMV) having found a wide range of applications in imaging, drug delivery, and vaccine development. TMV is typically produced in planta, and, as an RNA virus, is highly susceptible to natural mutation that may impact its properties. Over the course of 2 years, from 2018 until 2020, our laboratory followed a spontaneous point mutation in the TMV coat protein-first observed as a 30 Da difference in electrospray ionization mass spectrometry (ESI-MS). The mutation would have been difficult to notice by electrophoretic mobility in agarose or SDS-PAGE and does not alter viral morphology as assessed by transmission electron microscopy. The mutation responsible for the 30 Da difference between the wild-type (wTMV) and mutant (mTMV) coat proteins was identified by a bottom-up proteomic approach as a change from glycine to serine at position 155 based on collision-induced dissociation data. Since residue 155 is located on the outer surface of the TMV rod, it is feasible that the mutation alters TMV surface chemistry. However, enzyme-linked immunosorbent assays found no difference in binding between mTMV and wTMV. Functionalization of a nearby residue, tyrosine 139, with diazonium salt, also appears unaffected. Overall, this study highlights the necessity of standard workflows to quality-control viral stocks. We suggest that ESI-MS is a straightforward and low-cost way to identify emerging mutants in coat proteins.
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Affiliation(s)
- Jenica L Lumata
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA
| | - Darby Ball
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA
| | - Arezoo Shahrivarkevishahi
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA
| | - Michael A Luzuriaga
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA
| | - Fabian C Herbert
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA
| | - Olivia Brohlin
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA
| | - Hamilton Lee
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA
| | - Laurel M Hagge
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA
| | - Sheena D'Arcy
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA. .,Department of Bioengineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA.
| | - Jeremiah J Gassensmith
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA. .,Department of Bioengineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA.
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19
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Shukla S, Marks I, Church D, Chan SK, Pokorski JK, Steinmetz NF. Tobacco mosaic virus for the targeted delivery of drugs to cells expressing prostate-specific membrane antigen. RSC Adv 2021; 11:20101-20108. [PMID: 34178308 PMCID: PMC8180379 DOI: 10.1039/d1ra03166j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Prostate-specific membrane antigen (PSMA) is a membrane-bound protein that is preferentially expressed in the prostate gland and induced in many prostate cancers, making it an important target for new diagnostics and therapeutics. To improve the efficacy of nanoparticle formulations for the imaging and/or eradication of prostate cancer, we synthesized the PSMA-binding glutamic acid derivative DUPA and conjugated it to the external surface of tobacco mosaic virus (TMV) particles. DUPA-targeted TMV was subsequently loaded with the antineoplastic agent mitoxantrone (MTO) or conjugated internally with the fluorescent dye cyanine 5 (Cy5). We found that TMV particles could be efficiently decorated with DUPA and loaded with MTO or Cy5 while maintaining structural integrity. DUPA-targeted TMV particles were able to bind more efficiently to the surface of PSMA+ LNCaP cells compared to non-targeted TMV; but there was little difference in binding efficiency between targeted and untargeted TMV when we tested PSMA− PC3 cells (both cell lines are prostate cancer cell lines). DUPA-targeted TMV particles were internalized by LNCaP cells enabling drug delivery. Finally, we loaded the DUPA-targeted TMV particles and untargeted control particles with MTO to test their cytotoxicity against LNCaP cells in vitro. The cytotoxicity of the TMV-MTO particles (IC50 = 10.2 nM) did not differ significantly from that of soluble MTO at an equivalent dose (IC50 = 12.5 nM) but the targeted particles (TMV-DUPA-MTO) were much more potent (IC50 = 2.80 nM). The threefold increase in cytotoxicity conferred by the DUPA ligand suggests that MTO-loaded, DUPA-coated TMV particles are promising as a therapeutic strategy for PSMA+ prostate cancer and should be advanced to preclinical testing in mouse models of prostate cancer. Prostate-specific membrane antigen (PSMA) is a membrane-bound protein that is preferentially expressed in the prostate gland and induced in many prostate cancers, making it an important target for new diagnostics and therapeutics.![]()
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Affiliation(s)
- Sourabh Shukla
- Department of NanoEngineering, University of California San Diego La Jolla CA 92093 USA
| | - Isaac Marks
- Department of NanoEngineering, University of California San Diego La Jolla CA 92093 USA
| | - Derek Church
- Department of NanoEngineering, University of California San Diego La Jolla CA 92093 USA
| | - Soo-Khim Chan
- Department of NanoEngineering, University of California San Diego La Jolla CA 92093 USA
| | - Jonathan K Pokorski
- Department of NanoEngineering, University of California San Diego La Jolla CA 92093 USA .,Center for Nano-ImmunoEngineering, University of California San Diego La Jolla CA 92093 USA.,Institute for Materials Discovery and Design, University of California San Diego La Jolla CA 92093 USA
| | - Nicole F Steinmetz
- Department of NanoEngineering, University of California San Diego La Jolla CA 92093 USA .,Department of Bioengineering, University of California San Diego La Jolla CA 92093 USA.,Department of Radiology, University of California San Diego La Jolla CA 92093 USA.,Moores Cancer Center, University of California San Diego La Jolla CA 92093 USA.,Center for Nano-ImmunoEngineering, University of California San Diego La Jolla CA 92093 USA.,Institute for Materials Discovery and Design, University of California San Diego La Jolla CA 92093 USA
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20
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Park J, Wen AM, Gao H, Shin MD, Simon DI, Wang Y, Steinmetz NF. Designing S100A9-Targeted Plant Virus Nanoparticles to Target Deep Vein Thrombosis. Biomacromolecules 2021; 22:2582-2594. [PMID: 34060817 DOI: 10.1021/acs.biomac.1c00303] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Thromboembolic conditions are a leading cause of death worldwide, and deep vein thrombosis (DVT), or occlusive venous clot formation, is a critical and rising problem that contributes to damage of vital organs, long-term complications, and life-threatening conditions such as pulmonary embolism. Early diagnosis and treatment are correlated to better prognosis. However, current technologies in these areas, such as ultrasonography for diagnostics and anticoagulants for treatment, are limited in terms of their accuracy and therapeutic windows. In this work, we investigated targeting myeloid related protein 14 (MRP-14, also known as S100A9) using plant virus-based nanoparticle carriers as a means to achieve tissue specificity aiding prognosis and therapeutic intervention. We used a combinatorial peptide library screen to identify peptide ligands that bind MRP-14. Candidates were selected and formulated as nanoparticles by using cowpea mosaic virus (CPMV) and tobacco mosaic virus (TMV). Intravascular delivery of our MRP-14-targeted nanoparticles in a murine model of DVT resulted in enhanced accumulation in the thrombi and reduced thrombus size, suggesting application of nanoparticles for molecular targeting of MRP-14 could be a promising direction for improving DVT diagnostics, therapeutics, and therefore prognosis.
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Affiliation(s)
- Jooneon Park
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Amy M Wen
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Huiyun Gao
- Department of Medicine, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Matthew D Shin
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Daniel I Simon
- Department of Medicine, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Yunmei Wang
- Department 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.,Center for Nano-ImmunoEngineering, 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.,Institute for Materials Discovery and Design, University of California, San Diego, La Jolla, California 92093, United States
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21
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Synthesis and cytotoxicity evaluation of gemcitabine-tobacco mosaic virus conjugates. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Aljabali AA, Obeid MA. Inorganic-organic Nanomaterials for Therapeutics and Molecular Imaging Applications. ACTA ACUST UNITED AC 2020. [DOI: 10.2174/2210681209666190807145229] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background::
Surface modification of nanoparticles with targeting moieties can be
achieved through bioconjugation chemistries to impart new Functionalities. Various polymeric
nanoparticles have been used for the formulation of nanoparticles such as naturally-occurring
protein cages, virus-like particles, polymeric saccharides, and liposomes. These polymers have
been proven to be biocompatible, side effects free and degradable with no toxicity.
Objectives::
This paper reviews available literature on the nanoparticles pharmaceutical and medical
applications. The review highlights and updates the customized solutions for selective drug
delivery systems that allow high-affinity binding between nanoparticles and the target receptors.
Methods::
Bibliographic databases and web-search engines were used to retrieve studies that assessed
the usability of nanoparticles in the pharmaceutical and medical fields. Data were extracted
on each system in vivo and in vitro applications, its advantages and disadvantages, and its ability to
be chemically and genetically modified to impart new functionalities. Finally, a comparison
between naturally occurring and their synthetic counterparts was carried out.
Results::
The results showed that nanoparticles-based systems could have promising applications in
diagnostics, cell labeling, contrast agents (Magnetic Resonance Imaging and Computed Tomography),
antimicrobial agents, and as drug delivery systems. However, precautions should be taken
to avoid or minimize toxic effect or incompatibility of nanoparticles-based systems with the biological
systems in case of pharmaceutical or medical applications.
Conclusion::
This review presented a summary of recent developments in the field of pharmaceutical
nanotechnology and highlighted the challenges and the merits that some of the nanoparticles-
based systems both in vivo and in vitro systems.
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Affiliation(s)
- Alaa A.A. Aljabali
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Yarmouk University, P.O. BOX 566, Irbid 21163, Jordan
| | - Mohammad A. Obeid
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Yarmouk University, P.O. BOX 566, Irbid 21163, Jordan
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23
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Li L, Steinmetz NF, Eppell SJ, Zypman FR. Charge Calibration Standard for Atomic Force Microscope Tips in Liquids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:13621-13632. [PMID: 33155810 DOI: 10.1021/acs.langmuir.0c02455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
An electric charge standard with nanoscale resolution is created using the known charge distribution of a single tobacco mosaic virus coat protein combined with the known packing of these proteins in the virus capsid. This advances the ability to measure charge on nanometric samples. Experimental atomic force microscope (AFM) force-distance curves are collected under aqueous conditions with controlled pH and ion concentration. A mathematical model that considers a polarizable dielectric tip immersed in an electrolyte is used to obtain charge density from the AFM measurements. Interactions between the tip and the sample are modeled using theory that includes monopolar electrostatic interactions, dipolar interactions, screening from both the dielectric nature of ambient water and solvated ions as described by the linear Poisson-Boltzmann equation, and hard-core repulsion. It is found that the tip charge density changes on a timescale of hours requiring recalibration of the tip for experiments lasting more than an hour. As an example of how a charge-calibrated tip may be used, the surface charge densities on 20 individual carboxylate-modified polystyrene (PS) beads are measured. The average of these AFM-measured bead charge densities is compared with the value obtained from conventional titration combined with electron microscopy. The two values are found to agree within 20%. While the comparison demonstrates similarity of the two charge measurements, hypotheses are put forward as to why the two techniques might be expected not to provide identical mean charge densities. The considerations used to build these hypotheses thus underscore the relevance of the method performed here if charge information is required on individual nanoparticles.
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Affiliation(s)
- Li Li
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Nicole F Steinmetz
- Departments of NanoEngineering, Bioengineering, and Radiology, Moores Cancer Center, Center for Nano-ImmunoEngineering, University of California-San Diego, La Jolla, California 92039, United States
| | - Steven J Eppell
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Fredy R Zypman
- Department of Physics, Yeshiva University, Manhattan, New York 10033, United States
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24
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Qin W, Wang CY, Ma YX, Shen MJ, Li J, Jiao K, Tay FR, Niu LN. Microbe-Mediated Extracellular and Intracellular Mineralization: Environmental, Industrial, and Biotechnological Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907833. [PMID: 32270552 DOI: 10.1002/adma.201907833] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/09/2020] [Indexed: 06/11/2023]
Abstract
Microbe-mediated mineralization is ubiquitous in nature, involving bacteria, fungi, viruses, and algae. These mineralization processes comprise calcification, silicification, and iron mineralization. The mechanisms for mineral formation include extracellular and intracellular biomineralization. The mineral precipitating capability of microbes is often harnessed for green synthesis of metal nanoparticles, which are relatively less toxic compared with those synthesized through physical or chemical methods. Microbe-mediated mineralization has important applications ranging from pollutant removal and nonreactive carriers, to other industrial and biomedical applications. Herein, the different types of microbe-mediated biomineralization that occur in nature, their mechanisms, as well as their applications are elucidated to create a backdrop for future research.
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Affiliation(s)
- Wen Qin
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Chen-Yu Wang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Yu-Xuan Ma
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Min-Juan Shen
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Jing Li
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Kai Jiao
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Franklin R Tay
- College of Graduate Studies, Augusta University, Augusta, GA, 30912, USA
| | - Li-Na Niu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
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Henderson EA, Tam CC, Cheng LW, Ngono AE, Nguyen AV, Shresta S, McGee M, Padgett H, Grill LK, Martchenko Shilman M. Investigation of the immunogenicity of Zika glycan loop. Virol J 2020; 17:43. [PMID: 32234060 PMCID: PMC7110905 DOI: 10.1186/s12985-020-01313-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 03/06/2020] [Indexed: 12/30/2022] Open
Abstract
Background Zika virus (ZIKV) is a major human pathogen and member of the Flavivirus genus. Previous studies have identified neutralizing antibodies from Zika patients that bind to quaternary epitopes across neighboring envelope (E) proteins, called E dimer epitopes (EDE). An asparagine-linked glycan on the “glycan loop” (GL) of the ZIKV envelope protein protects the functionally important “fusion loop” on the opposite E subunit in the dimer, and EDE antibodies have been shown to bind to both of these loops. Human EDE antibodies have been divided into two subclasses based on how they bind to the glycan loop region: EDE1 antibodies do not require glycosylation for binding, while EDE2 antibodies strongly rely on the glycan for binding. Methods ZIKV GL was expressed on tobacco mosaic virus nanoparticles. Mice were immunized with GL or full-length monomeric E and the immune response was analyzed by testing the ability of sera and monoclonal antibodies to bind to GL and to neutralize ZIKV in in vitro cellular assay. Results We report here the existence of ZIKV moderately neutralizing antibodies that bind to E monomers through epitopes that include the glycan loop. We show that sera from human Zika patients contain antibodies capable of binding to the unglycosylated glycan loop in the absence of the rest of the envelope protein. Furthermore, mice were inoculated with recombinant E monomers and produced neutralizing antibodies that either recognize unglycosylated glycan loop or require glycan for their binding to monomeric E. We demonstrate that both types of antibodies neutralize ZIKV to some extent in a cellular virus neutralization assay. Conclusions Analogous to the existing EDE antibody nomenclature, we propose a new classification for antibodies that bind to E monomer epitopes (EME): EME1 and EME2 for those that do not require and those that do require glycan for binding to E, respectively.
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Affiliation(s)
- Elizabeth A Henderson
- Henry E. Riggs School of Applied Life Sciences, Keck Graduate Institute, Claremont, CA, 91711, USA
| | - Christina C Tam
- Foodborne Toxin Detection and Prevention Research Unit, Western Regional Research Center, United States Department of Agriculture (USDA), Albany, CA, 94710, USA
| | - Luisa W Cheng
- Foodborne Toxin Detection and Prevention Research Unit, Western Regional Research Center, United States Department of Agriculture (USDA), Albany, CA, 94710, USA
| | - Annie Elong Ngono
- Division of Inflammation Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, 92037, USA
| | - Anh-Viet Nguyen
- Division of Inflammation Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, 92037, USA
| | - Sujan Shresta
- Division of Inflammation Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, 92037, USA
| | - Matt McGee
- Novici Biotech LLC, Vacaville, CA, 95688, USA
| | - Hal Padgett
- Novici Biotech LLC, Vacaville, CA, 95688, USA
| | - Laurence K Grill
- Henry E. Riggs School of Applied Life Sciences, Keck Graduate Institute, Claremont, CA, 91711, USA.
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Single-wavelength Excited Ratiometric Fluorescence pH Probe to Image Intracellular Trafficking of Tobacco Mosaic Virus. CHINESE JOURNAL OF POLYMER SCIENCE 2019. [DOI: 10.1007/s10118-020-2365-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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27
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Rybicki EP. Plant molecular farming of virus‐like nanoparticles as vaccines and reagents. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2019; 12:e1587. [DOI: 10.1002/wnan.1587] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/23/2019] [Accepted: 07/31/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Edward P. Rybicki
- Biopharming Research Unit, Department of Molecular & Cell Biology University of Cape Town Cape Town South Africa
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28
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Hu H, Yang Q, Baroni S, Yang H, Aime S, Steinmetz NF. Polydopamine-decorated tobacco mosaic virus for photoacoustic/magnetic resonance bimodal imaging and photothermal cancer therapy. NANOSCALE 2019; 11:9760-9768. [PMID: 31066418 PMCID: PMC6679940 DOI: 10.1039/c9nr02065a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Nanotheranostic reagents that integrate magnetic resonance imaging (MRI) and photothermal therapy (PTT) offer a promising strategy for the treatment of human disease. However, classic gadolinium (Gd)-based T1-MRI contrast agents are limited by their low relaxivity. To address this, we produced Gd-loaded Tobacco mosaic virus (TMV) particles coated with the mussel-inspired biopolymer polydopamine (PDA). Such biocompatible nanotheranostic reagents can be used to facilitate PTT, guided by multimodal magnetic resonance/photoacoustic imaging. The r1-relaxivity of the Gd-TMV-PDA particles at 60 MHz was ∼80 mM-1 s-1, compared to 13.63 mM-1 s-1 for the uncoated Gd-TMV particles. The Gd-TMV-PDA particles also promoted strong near-infrared absorption with high photothermal conversion efficiency (28.9%) and demonstrated excellent photoacoustic contrast. Multimodal imaging and PTT resulted in the effective killing of PC-3 prostate cancer cells. Gd-TMV-PDA nanoparticles therefore offer a promising theranostic approach that can now be tested in vivo in cancer models.
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Affiliation(s)
- He Hu
- Department of NanoEngineering, University of California-San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
- Department of Biomedical Engineering, Case Western Reserve University Schools of Medicine and Engineering, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Corresponding authors: Prof. Nicole F. Steinmetz: , Dr. He Hu:
| | - Qi Yang
- Department of Chemistry, Shanghai Normal University, 100 Guilin Rd., Shanghai, China
| | - Simona Baroni
- Department of Molecular Biotechnologies and Health Sciences, University of Torino, Via Nizza, 52, Torino, 10126, Italy
| | - Hong Yang
- Department of Chemistry, Shanghai Normal University, 100 Guilin Rd., Shanghai, China
| | - Silvio Aime
- Department of Molecular Biotechnologies and Health Sciences, University of Torino, Via Nizza, 52, Torino, 10126, Italy
| | - Nicole F. Steinmetz
- Department of NanoEngineering, University of California-San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
- Department of Radiology, University of California-San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
- Department of Bioengineering, University of California-San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
- Moores Cancer Center, University of California-San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
- Department of Biomedical Engineering, Case Western Reserve University Schools of Medicine and Engineering, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Corresponding authors: Prof. Nicole F. Steinmetz: , Dr. He Hu:
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29
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Design and synthesis of a highly efficient labelling reagent for incorporation of tetrafluorinated aromatic azide into proteins. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.01.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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Vignali V, S. Miranda B, Lodoso-Torrecilla I, van Nisselroy CAJ, Hoogenberg BJ, Dantuma S, Hollmann F, de Vries JW, Warszawik EM, Fischer R, Commandeur U, van Rijn P. Biocatalytically induced surface modification of the tobacco mosaic virus and the bacteriophage M13. Chem Commun (Camb) 2019; 55:51-54. [DOI: 10.1039/c8cc08042a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A one-step laccase induced free radical oxidation of the tobacco mosaic virus and bacteriophage M13 led to acrylate-functionalized viruses with customizable properties.
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31
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Tian Y, Zhou M, Shi H, Gao S, Xie G, Zhu M, Wu M, Chen J, Niu Z. Integration of Cell-Penetrating Peptides with Rod-like Bionanoparticles: Virus-Inspired Gene-Silencing Technology. NANO LETTERS 2018; 18:5453-5460. [PMID: 30091612 DOI: 10.1021/acs.nanolett.8b01805] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Inspired by the high gene transfer efficiency of viral vectors and to avoid side effects, we present here a 1D rod-like gene-silencing vector based on a plant virus. By decorating the transacting activator of transduction (TAT) peptide on the exterior surface, the TAT-modified tobacco mosaic virus (TMV) achieves a tunable isoelectric point (from ∼3.5 to ∼9.6) depending on the TAT dose. In addition to enhanced cell internalization, this plant virus-based vector (TMV-TAT) acquired endo/lysosomal escape capacity without inducing lysosomal damage, resulting in both high efficiency and low cytotoxicity. By loading silencer green fluorescent protein (GFP) siRNA onto the TMV-TAT vector (siRNA@TMV-TAT) and interfering with GFP-expressing mouse epidermal stem cells (ESCs/GFP) in vitro, the proportion of GFP-positive cells could be knocked down to levels even lower than 15% at a concentration of ∼100% cell viability. Moreover, by interfering with GFP-expressing highly metastatic hepatocellular carcinoma (MHCC97-H/GFP) tumors in vivo, treatment with siRNA@TMV-TAT complexes for 10 days achieved a GFP-negative rate as high as 80.8%. This work combines the high efficiency of viral vectors and the safety of nonviral vectors and may provide a promising strategy for gene-silencing technology.
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Affiliation(s)
- Ye Tian
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , 29 Zhongguancun East Road , Beijing 100190 , P. R. China
| | - Mengxue Zhou
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety , Institute of High Energy Physics, Chinese Academy of Sciences , No. 19(B) Yuquan Road , Beijing 100049 , P. R. China
| | - Haigang Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , 29 Zhongguancun East Road , Beijing 100190 , P. R. China
| | - Sijia Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , 29 Zhongguancun East Road , Beijing 100190 , P. R. China
| | - Guocheng Xie
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , 29 Zhongguancun East Road , Beijing 100190 , P. R. China
| | - Meng Zhu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , 29 Zhongguancun East Road , Beijing 100190 , P. R. China
| | - Man Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , 29 Zhongguancun East Road , Beijing 100190 , P. R. China
| | - Jun Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety , Institute of High Energy Physics, Chinese Academy of Sciences , No. 19(B) Yuquan Road , Beijing 100049 , P. R. China
| | - Zhongwei Niu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , 29 Zhongguancun East Road , Beijing 100190 , P. R. China
- School of Future Technology , University of Chinese Academy of Sciences , No.19(A) Yuquan Road , Beijing 100049 , P. R. China
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Abstract
Cancer immunotherapy approaches have emerged as novel treatment regimens against cancer. A particularly interesting avenue is the concept of in situ vaccination, where immunostimulatory agents are introduced into an identified tumor to overcome local immunosuppression and, if successful, mount systemic antitumor immunity. We had previously shown that nanoparticles from cowpea mosaic virus (CPMV) are highly potent in inducing long-lasting antitumor immunity when used as an in situ vaccine in various tumor mouse models. Here we asked whether the nanoparticles from tobacco mosaic virus (TMV) could also be applied as an in situ vaccine and, if so, whether efficacy or mechanism of immune-activation would be affected by the nanoparticle size (300 × 18 nm native TMV vs 50 × 18 nm short TMV nanorods), shape (nanorods vs spherical TMV, termed SNP), or state of assembly (assembled TMV rod vs free coat protein, CP). Our studies indicate that CPMV, but less so TMV, elicits potent antitumor immunity after intratumoral treatment of dermal melanoma (B16F10 using C57BL/6 mice). TMV and TMVshort slowed tumor growth and increased survival time, however, at significantly lower potency compared to that of CPMV. There were no apparent differences between TMV, TMVshort, or the SNP indicating that the aspect ratio does not necessarily play a role in plant viral in situ vaccines. The free CPs did not elicit an antitumor response or immunostimulation, which may indicate that a multivalent assembly is required to trigger an innate immune recognition and activation. Differential potency of CPMV vs TMV can be explained with differences in immune-activation: data indicate that CPMV stimulates an antitumor response through recruitment of monocytes into the tumor microenvironment (TME), establishing signaling through the IFN-γ pathway, which also leads to recruitment of tumor-infiltrated neutrophils (TINs) and natural killer (NK) cells. Furthermore, the priming of the innate immune system also mounts an adaptive response with CD4+ and CD8+ T cell recruitment and establishment of effector memory cells. While the TMV treatment also lead to the recruitment of innate immune cells as well as T cells (although to a lesser degree), key differences were noted in cyto/chemokine profiling with TMV inducing a potent immune response early on characterized by strong pro-inflammatory cytokines, primarily IL-6. Together, data indicate that some plant viral nanotechnology platforms are more suitable for application as in situ vaccines than others; understanding the intricate differences and underlying mechanism of immune-activation may set the stage for clinical development of these technologies.
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Affiliation(s)
| | - Chao Wang
- Department of Biomedical Engineering
| | - Steven Fiering
- Department of Microbiology and Immunology
- Norris Cotton Cancer Center, Dartmouth University, Lebanon, New Hampshire 03756, United States
| | - Nicole F. Steinmetz
- Department of Biomedical Engineering
- Department of Radiology
- Department of Materials Science and Engineering
- Macromolecular Science and Engineering
- Division of General Medical Sciences-Oncology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
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Lin RD, Steinmetz NF. Tobacco mosaic virus delivery of mitoxantrone for cancer therapy. NANOSCALE 2018; 10:16307-16313. [PMID: 30129956 PMCID: PMC6145845 DOI: 10.1039/c8nr04142c] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Mitoxantrone (MTO) is a topoisomerase II inhibitor which has been used to treat various forms of cancer either as a solo chemotherapy regimen or as a component in cocktail treatments. However, as with other anti-neoplastic agents, MTO has severe cardiac side effects. Therefore, a drug delivery approach holds promise to improve the safety and applicability of this chemotherapy. Here, we report the application of a plant virus-based nanotechnology derived from tobacco mosaic virus (TMV) as a delivery vehicle for MTO towards cancer therapy. TMV is a high aspect-ratio, soft-matter nanotube with dimensions of 300 × 18 nm and a 4 nm wide channel. The surface chemistry of the interior and exterior TMV surfaces is distinct and we established charge-driven drug loading strategies to encapsulate therapeutics for drug delivery. We demonstrate effective MTO loading into TMV yielding ∼1000 MTO per TMV carrier. The treatment efficacy of MTO-loaded TMV (MTOTMV) was assessed in in vitro and in vivo models. In vitro testing confirmed that MTO maintained its efficacy when delivered by TMV in a panel of cancer cell lines. Drug delivery in vivo using a mouse model of triple negative breast cancer demonstrated the superior efficacy of TMV-delivered MTO vs. free MTO. This study demonstrates the potential of plant virus-based nanotechnology for cancer therapy and drug delivery.
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Affiliation(s)
- Richard D. Lin
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland OH 44106
| | - Nicole F. Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland OH 44106
- Department of NanoEngineering, Moores Cancer Center, University of California-San Diego, CA 92039
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Dharmarwardana M, Martins AF, Chen Z, Palacios PM, Nowak CM, Welch RP, Li S, Luzuriaga MA, Bleris L, Pierce BS, Sherry AD, Gassensmith JJ. Nitroxyl Modified Tobacco Mosaic Virus as a Metal-Free High-Relaxivity MRI and EPR Active Superoxide Sensor. Mol Pharm 2018; 15:2973-2983. [PMID: 29771534 PMCID: PMC6078806 DOI: 10.1021/acs.molpharmaceut.8b00262] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Superoxide overproduction is known to occur in multiple disease states requiring critical care; yet, noninvasive detection of superoxide in deep tissue remains a challenge. Herein, we report a metal-free magnetic resonance imaging (MRI) and electron paramagnetic resonance (EPR) active contrast agent prepared by "click conjugating" paramagnetic organic radical contrast agents (ORCAs) to the surface of tobacco mosaic virus (TMV). While ORCAs are known to be reduced in vivo to an MRI/EPR silent state, their oxidation is facilitated specifically by reactive oxygen species-in particular, superoxide-and are largely unaffected by peroxides and molecular oxygen. Unfortunately, single molecule ORCAs typically offer weak MRI contrast. In contrast, our data confirm that the macromolecular ORCA-TMV conjugates show marked enhancement for T1 contrast at low field (<3.0 T) and T2 contrast at high field (9.4 T). Additionally, we demonstrated that the unique topology of TMV allows for a "quenchless fluorescent" bimodal probe for concurrent fluorescence and MRI/EPR imaging, which was made possible by exploiting the unique inner and outer surface of the TMV nanoparticle. Finally, we show TMV-ORCAs do not respond to normal cellular respiration, minimizing the likelihood for background, yet still respond to enzymatically produced superoxide in complicated biological fluids like serum.
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Affiliation(s)
- Madushani Dharmarwardana
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080-3021, USA
| | - André F. Martins
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080-3021, USA
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390, USA
| | - Zhuo Chen
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080-3021, USA
| | - Philip M. Palacios
- Department of Chemistry and Biochemistry, College of Sciences, The University of Texas at Arlington, Arlington, Texas 76019, USA
| | - Chance M. Nowak
- Department of Biological Sciences, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080-3021, USA
| | - Raymond P. Welch
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080-3021, USA
| | - Shaobo Li
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080-3021, USA
| | - Michael A. Luzuriaga
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080-3021, USA
| | - Leonidas Bleris
- Department of Biological Sciences, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080-3021, USA
| | - Brad S. Pierce
- Department of Chemistry and Biochemistry, College of Sciences, The University of Texas at Arlington, Arlington, Texas 76019, USA
| | - A. Dean Sherry
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080-3021, USA
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390, USA
| | - Jeremiah J. Gassensmith
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080-3021, USA
- Department of Bioengineering, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080-3021, USA
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Li S, Dharmarwardana M, Welch RP, Benjamin CE, Shamir AM, Nielsen SO, Gassensmith JJ. Investigation of Controlled Growth of Metal-Organic Frameworks on Anisotropic Virus Particles. ACS APPLIED MATERIALS & INTERFACES 2018; 10:18161-18169. [PMID: 29553703 DOI: 10.1021/acsami.8b01369] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Biomimetic mineralization with metal-organic frameworks (MOF), typically zeolitic imidazolate framework-8 (ZIF-8), is an emerging strategy to protect sensitive biological substances against denaturing environmental stressors such as heat and proteolytic agents. Additionally, this same biomimetic mineralization process has the potential of being used to create distinct core-shell architectures using genetically or chemically modified viral nanoparticles. Despite the proliferation of examples for ZIF-8 growth on biological or proteinaceous substrates, systematic studies of these processes are few and far between. Herein, we employed the tobacco mosaic virus (TMV) as a model biological template to investigate the biomimetic mineralization of ZIF-8, which has been proven to be a robust MOF for encasing and protecting inlaid biological substances. Our study shows a systematic dependence upon ZIF-8 crystallization parameters, e.g., ligand to metal molar ratio and metal concentration, which can yield several distinct morphologies of TMV@ZIF-8 composites and phases of ZIF-8. Further investigation using charged synthetic conjugates, time dependent growth analysis, and calorimetric analysis has shown that the TMV-Zn interaction plays a pivotal role in the final morphology of the TMV@ZIF-8, which can take the form of either core-shell bionanoparticles or large crystals of ZIF-8 with entrapped TMV located exclusively on the outer facets. The design rules outlined here, it is hoped, will provide guidance in biomimetic mineralization of MOFs on proteinaceous materials using ZIF-8.
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Gulati NM, Pitek AS, Czapar AE, Stewart PL, Steinmetz NF. The in vivo fates of plant viral nanoparticles camouflaged using self-proteins: overcoming immune recognition. J Mater Chem B 2018; 6:2204-2216. [PMID: 30294445 PMCID: PMC6171361 DOI: 10.1039/c7tb03106h] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Nanoparticles offer a promising avenue for targeted delivery of therapies. To slow clearance, nanoparticles are frequently stealth-coated to prevent opsonization and immune recognition. Serum albumin (SA) has been used as a bio-inspired stealth coating. To develop this shielding strategy for clinical applications, it is critical to understand the interactions between the immune system and SA-camouflaged nanoparticles. This work investigates the in vivo processing of SA-coated nanoparticles using tobacco mosaic virus (TMV) as a model system. In comparing four different SA-formulations, the particles with high SA coverage conjugated to TMV via a short linker performed the best at preventing antibody recognition. Irrelevant of the coating chemistry, all formulations led to similar levels of TMV-specific antibodies after repeat administration in mice; importantly though, SA-specific antibodies were not detected and the TMV-specific antibodies were unable to recognize shielded SA-coated TMV. Upon uptake in macrophages, the shielding agent and nanoparticle separate, where TMV trafficked to the lysosome and SA appears to recycle. The distinct intracellular fates of the TMV carrier and SA shielding agent explain why anti-TMV but not SA-specific antibodies are generated. This work characterizes the outcomes of SA-camouflaged TMV after immune recognition, and highlights the effectiveness of SA as a nanoparticle shielding agent.
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Affiliation(s)
- N. M. Gulati
- Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio
- Cleveland Center for Membrane and Structural Biology, Case Western Reserve University, Cleveland, Ohio
| | - A. S. Pitek
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio
| | - A. E. Czapar
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio
| | - P. L. Stewart
- Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio
- Cleveland Center for Membrane and Structural Biology, Case Western Reserve University, Cleveland, Ohio
| | - N. F. Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio
- Department of Radiology, Case Western Reserve University, Cleveland, Ohio
- Department of Materials Science and Engineering, Case Western Reserve University, Cleveland, Ohio
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio
- Case Comprehensive Cancer Center, Division of General Medical Sciences-Oncology, Case Western Reserve University, Cleveland, Ohio
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Vernekar AA, Berger G, Czapar AE, Veliz FA, Wang DI, Steinmetz NF, Lippard SJ. Speciation of Phenanthriplatin and Its Analogs in the Core of Tobacco Mosaic Virus. J Am Chem Soc 2018; 140:4279-4287. [PMID: 29553267 DOI: 10.1021/jacs.7b12697] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Efficient loading of drugs in novel delivery agents has the potential to substantially improve therapy by targeting the diseased tissue while avoiding unwanted side effects. Here we report the first systematic study of the loading mechanism of phenanthriplatin and its analogs into tobacco mosaic virus (TMV), previously used by our group as an efficient carrier for anticancer drug delivery. A detailed investigation of the preferential uptake of phenanthriplatin in its aquated form (∼2000 molecules per TMV particle versus ∼1000 for the chlorido form) is provided. Whereas the net charge of phenanthriplatin analogs and their ionic mobilities have no effect on loading, the reactivity of aqua phenanthriplatin with the glutamates, lining the interior walls of the channel of TMV, has a pronounced effect on its loading. MALDI-MS analysis along with NMR spectroscopic studies of a model reaction of hydroxy-phenanthriplatin with acetate establish the formation of stable covalent adducts. The increased number of heteroaromatic rings on the platinum ligand appears to enhance loading, possibly by stabilizing hydrophobic stacking interactions with TMV core components, specifically Pro102 and Thr103 residues neighboring Glu97 and Glu106 in the channel. Electron transfer dissociation MS/MS fragmentation, a technique that can prevent mass-condition-vulnerable modification of proteins, reveals that Glu97 preferentially participates over Glu106 in covalent bond formation to the platinum center.
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Affiliation(s)
- Amit A Vernekar
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Gilles Berger
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | | | | | - David I Wang
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | | | - Stephen J Lippard
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
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Interactions Between Plant Viral Nanoparticles (VNPs) and Blood Plasma Proteins, and Their Impact on the VNP In Vivo Fates. Methods Mol Biol 2018; 1776:591-608. [PMID: 29869268 DOI: 10.1007/978-1-4939-7808-3_38] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Plant viral nanoparticles (VNPs) are currently being developed as novel vessels for delivery of diagnostic and therapeutic cargos to sites of disease. With a rapid increase in the number of VNP variants and their potential applications in nanomedicine, the properties they acquire in the bloodstream need to be investigated. Biomolecules present in plasma are known to adsorb onto the surface of nanomaterials (including VNPs), forming a biointerface called the protein corona, which is capable of reprogramming the properties of VNPs. Here we describe a few general methods to isolate and study the VNP-protein corona complexes, in order to evaluate the impact of protein corona on molecular recognition of VNPs by target cells, and clearance by phagocytes. We outline procedures for in vivo screening of VNP fates in a mouse model, which may be useful for evaluation of efficacy and biocompatibility of different VNP based formulations.
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39
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Abstract
Plant viruses are emerging as versatile tools for nanotechnology applications since it is possible to modify their multivalent protein surfaces and thereby introduce and display new functionalities. In this chapter, we describe a tobacco mosaic virus (TMV) variant that exposes two selectively addressable amino acid moieties on each of its 2130 coat protein (CP) subunits. A lysine as well as a cysteine introduced at accessible sites of every CP can be modified with amino- and/or thiol-reactive chemistry such as N-hydroxysuccinimide esters (NHS ester) and maleimide containing reagents alone or simultaneously. This enables the pairwise immobilization of distinct molecules in close vicinity to each other on the TMV surface by simple standard conjugation protocols. We describe the generation of the mutations, the virus propagation and isolation as well as the dual functionalization of the TMV variant with two fluorescent dyes. The labeling is evaluated by SDS-PAGE and spectrophotometry and the degree of labeling (DOL) calculated.
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Affiliation(s)
- Christina Wege
- Department of Molecular Biology and Plant Virology, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Stuttgart, Germany
| | - Fania Geiger
- Department of Cellular Biophysics, Max Planck Institute for Medical Research, Heidelberg, Germany.
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40
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Bruckman MA, Czapar AE, Steinmetz NF. Drug-Loaded Plant-Virus Based Nanoparticles for Cancer Drug Delivery. Methods Mol Biol 2018; 1776:425-436. [PMID: 29869258 DOI: 10.1007/978-1-4939-7808-3_28] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Nature has designed nanosized particles, specifically viruses, equipped to deliver cargo to cells. We report the chemical bioconjugation and shape shifting of a hollow, rod-shaped tobacco mosaic virus (TMV) to dense spherical nanoparticles (SNPs). We describe methods to transform TMV rods to spheres, load TMV rods and spheres with the chemotherapeutic drug, doxorubicin (DOX), to deliver modified particles to breast cancer cells, and to determine the IC50 values of the plant virus-based drug delivery system.
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Affiliation(s)
- Michael A Bruckman
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA.
- NanoBio Systems, Elyria, OH, USA.
| | - Anna E Czapar
- Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
| | - Nicole F Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA.
- Department of Radiology, Case Western Reserve University, Cleveland, OH, USA.
- Department of Materials Science and Engineering, Case Western Reserve University, Cleveland, OH, USA.
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH, USA.
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA.
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41
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Röder J, Fischer R, Commandeur U. Engineering Potato Virus X Particles for a Covalent Protein Based Attachment of Enzymes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1702151. [PMID: 29125698 DOI: 10.1002/smll.201702151] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 08/25/2017] [Indexed: 05/23/2023]
Abstract
Plant virus nanoparticles are often used to display functional amino acids or small peptides, thus serving as building blocks in application areas as diverse as nanoelectronics, bioimaging, vaccination, drug delivery, and bone differentiation. This is most easily achieved by expressing coat protein fusions, but the assembly of the corresponding virus particles can be hampered by factors such as the fusion protein size, amino acid composition, and post-translational modifications. Size constraints can be overcome by using the Foot and mouth disease virus 2A sequence, but the compositional limitations cannot be avoided without the introduction of time-consuming chemical modifications. SpyTag/SpyCatcher technology is used in the present study to covalently attach the Trichoderma reesei endoglucanase Cel12A to Potato virus X (PVX) nanoparticles. The formation of PVX particles is confirmed by western blot, and the ability of the particles to display Cel12A is demonstrated by enzyme-linked immunosorbent assays and transmission electron microscopy. Enzymatic assays show optimal reaction conditions of 50 °C and pH 6.5, and an increased substrate conversion rate compared to free enzymes. It is concluded that PVX displaying the SpyTag can serve as new scaffold for protein display, most notably for proteins with post-translational modifications.
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Affiliation(s)
- Juliane Röder
- Institute for Molecular Biotechnology, RWTH Aachen University, Worringerweg 1, 52074, Aachen, Germany
| | - Rainer Fischer
- Institute for Molecular Biotechnology, RWTH Aachen University, Worringerweg 1, 52074, Aachen, Germany
| | - Ulrich Commandeur
- Institute for Molecular Biotechnology, RWTH Aachen University, Worringerweg 1, 52074, Aachen, Germany
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42
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Pitek AS, Wang Y, Gulati S, Gao H, Stewart PL, Simon DI, Steinmetz NF. Elongated Plant Virus-Based Nanoparticles for Enhanced Delivery of Thrombolytic Therapies. Mol Pharm 2017; 14:3815-3823. [PMID: 28881141 DOI: 10.1021/acs.molpharmaceut.7b00559] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Thrombotic cardiovascular disease, including acute myocardial infarction, ischemic stroke, and venous thromboembolic disease, is the leading cause of morbidity and mortality worldwide. While reperfusion therapy with thrombolytic agents reduces mortality from acute myocardial infarction and disability from stroke, thrombolysis is generally less effective than mechanical reperfusion and is associated with fatal intracerebral hemorrhage in up to 2-5% of patients. To address these limitations, we propose the tobacco mosaic virus (TMV)-based platform technology for targeted delivery of thrombolytic therapies. TMV is a plant virus-based nanoparticle with a high aspect ratio shape measuring 300 × 18 nm. These soft matter nanorods have favorable flow and margination properties allowing the targeting of the diseased vessel wall. We have previously shown that TMV homes to thrombi in a photochemical mouse model of arterial thrombosis. Here we report the synthesis of TMV conjugates loaded with streptokinase (STK). Various TMV-STK formulations were produced through bioconjugation of STK to TMV via intervening PEG linkers. TMV-STK was characterized using SDS-PAGE and Western blot, transmission electron microscopy, cryo-electron microscopy, and cryo-electron tomography. We investigated the thrombolytic activity of TMV-STK in vitro using static phantom clots, and in a physiologically relevant hydrodynamic model of shear-induced thrombosis. Our findings demonstrate that conjugation of STK to the TMV surface does not compromise the activity of STK. Moreover, the nanoparticle conjugate significantly enhances thrombolysis under flow conditions, which can likely be attributed to TMV's shape-mediated flow properties resulting in enhanced thrombus accumulation and dissolution. Together, these data suggest TMV to be a promising platform for the delivery of thrombolytics to enhance clot localization and potentially minimize bleeding risk.
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Affiliation(s)
- Andrzej S Pitek
- Department of Biomedical Engineering, Case Western Reserve University , Cleveland, Ohio 44106, United States
| | - Yunmei Wang
- Harrington Heart and Vascular Institute, Case Cardiovascular Research Institute, Department of Medicine, University Hospitals Case Medical Center and Case Western Reserve University School of Medicine , Cleveland, Ohio 44106, United States
| | - Sahil Gulati
- Department of Pharmacology, Case Western Reserve University , Cleveland, Ohio 44106, United States.,Cleveland Center for Membrane and Structural Biology, Case Western Reserve University , Cleveland, Ohio 44106, United States
| | - Huiyun Gao
- Harrington Heart and Vascular Institute, Case Cardiovascular Research Institute, Department of Medicine, University Hospitals Case Medical Center and Case Western Reserve University School of Medicine , Cleveland, Ohio 44106, United States
| | - Phoebe L Stewart
- Department of Pharmacology, Case Western Reserve University , Cleveland, Ohio 44106, United States.,Cleveland Center for Membrane and Structural Biology, Case Western Reserve University , Cleveland, Ohio 44106, United States
| | - Daniel I Simon
- Harrington Heart and Vascular Institute, Case Cardiovascular Research Institute, Department of Medicine, University Hospitals Case Medical Center and Case Western Reserve University School of Medicine , Cleveland, Ohio 44106, United States
| | - Nicole F Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University , Cleveland, Ohio 44106, United States.,Department of Radiology, Case Western Reserve University , Cleveland, Ohio 44106, United States.,Department of Materials Science and Engineering, Case Western Reserve University , Cleveland, Ohio 44106, United States.,Department of Macromolecular Science and Engineering, Case Western Reserve University , Cleveland, Ohio 44106, United States.,Case Comprehensive Cancer Center, Division of General Medical Sciences-Oncology, Case Western Reserve University , Cleveland, Ohio 44106, United States
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43
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Liljeström V, Ora A, Hassinen J, Rekola HT, Nonappa, Heilala M, Hynninen V, Joensuu JJ, Ras RHA, Törmä P, Ikkala O, Kostiainen MA. Cooperative colloidal self-assembly of metal-protein superlattice wires. Nat Commun 2017; 8:671. [PMID: 28939801 PMCID: PMC5610313 DOI: 10.1038/s41467-017-00697-z] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 07/21/2017] [Indexed: 01/12/2023] Open
Abstract
Material properties depend critically on the packing and order of constituent units throughout length scales. Beyond classically explored molecular self-assembly, structure formation in the nanoparticle and colloidal length scales have recently been actively explored for new functions. Structure of colloidal assemblies depends strongly on the assembly process, and higher structural control can be reliably achieved only if the process is deterministic. Here we show that self-assembly of cationic spherical metal nanoparticles and anionic rod-like viruses yields well-defined binary superlattice wires. The superlattice structures are explained by a cooperative assembly pathway that proceeds in a zipper-like manner after nucleation. Curiously, the formed superstructure shows right-handed helical twisting due to the right-handed structure of the virus. This leads to structure-dependent chiral plasmonic function of the material. The work highlights the importance of well-defined colloidal units when pursuing unforeseen and complex assemblies.Colloidal self-assembly is a unique method to produce three-dimensional materials with well-defined hierarchical structures and functionalities. Liljeström et al. show controlled preparation of macroscopic chiral wires with helical plasmonic superlattice structure composed of metal nanoparticles and viruses.
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Affiliation(s)
- Ville Liljeström
- HYBER Centre of Excellence, Department of Applied Physics, Aalto University, FI-00076, Aalto, Finland
- HYBER Centre of Excellence, Department of Bioproducts and Biosystems, Aalto University, FI-00076, Aalto, Finland
| | - Ari Ora
- HYBER Centre of Excellence, Department of Bioproducts and Biosystems, Aalto University, FI-00076, Aalto, Finland
| | - Jukka Hassinen
- HYBER Centre of Excellence, Department of Applied Physics, Aalto University, FI-00076, Aalto, Finland
| | - Heikki T Rekola
- COMP Centre of Excellence, Department of Applied Physics, Aalto University, FI-00076, Aalto, Finland
| | - Nonappa
- HYBER Centre of Excellence, Department of Applied Physics, Aalto University, FI-00076, Aalto, Finland
| | - Maria Heilala
- HYBER Centre of Excellence, Department of Applied Physics, Aalto University, FI-00076, Aalto, Finland
| | - Ville Hynninen
- HYBER Centre of Excellence, Department of Applied Physics, Aalto University, FI-00076, Aalto, Finland
| | - Jussi J Joensuu
- HYBER Centre of Excellence, VTT Technical Research Centre of Finland Ltd, 02150, Espoo, Finland
| | - Robin H A Ras
- HYBER Centre of Excellence, Department of Applied Physics, Aalto University, FI-00076, Aalto, Finland
- HYBER Centre of Excellence, Department of Bioproducts and Biosystems, Aalto University, FI-00076, Aalto, Finland
| | - Päivi Törmä
- COMP Centre of Excellence, Department of Applied Physics, Aalto University, FI-00076, Aalto, Finland
| | - Olli Ikkala
- HYBER Centre of Excellence, Department of Applied Physics, Aalto University, FI-00076, Aalto, Finland
| | - Mauri A Kostiainen
- HYBER Centre of Excellence, Department of Applied Physics, Aalto University, FI-00076, Aalto, Finland.
- HYBER Centre of Excellence, Department of Bioproducts and Biosystems, Aalto University, FI-00076, Aalto, Finland.
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44
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Franke CE, Czapar AE, Patel RB, Steinmetz NF. Tobacco Mosaic Virus-Delivered Cisplatin Restores Efficacy in Platinum-Resistant Ovarian Cancer Cells. Mol Pharm 2017; 15:2922-2931. [PMID: 28926265 DOI: 10.1021/acs.molpharmaceut.7b00466] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Platinum resistance in ovarian cancer is the major determinant of disease prognosis. Resistance can first appear at the onset of disease or develop in response to platinum-based chemotherapy. Due to poor response to alternate chemotherapies and lack of targeted therapies, there is an urgent clinical need for a new avenue toward treatment of platinum-resistant (PR) ovarian cancer. Nanoscale delivery systems hold potential to overcome resistance mechanisms. In this work, we present tobacco mosaic virus (TMV) as a nanocarrier for cisplatin for treatment of PR ovarian cancer cells. The TMV-cisplatin conjugate (TMV-cisPt) was synthesized using a charge-driven reaction that, like a classic click reaction, is simple and reliable for large-scale production. Up to ∼1900 cisPt were loaded per TMV-cisPt with biphasic release profiles characterized by a fast half-life ( t1) of ∼1 h and slow half-life ( t2) of ∼12 h independent of pH. Efficient cell uptake of TMV was observed when incubated with ovarian cancer cells, and TMV-cisPt demonstrated superior cytotoxicity and DNA double strand breakage (DSB) in platinum-sensitive (PS) and PR cancer cells when compared to free cisplatin. The cytotoxicity in PR ovarian cancer cells and overall lower effective dosage requirement makes TMV-cisPt a powerful candidate for improved ovarian cancer treatment strategies.
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45
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Röder J, Fischer R, Commandeur U. Adoption of the 2A Ribosomal Skip Principle to Tobacco Mosaic Virus for Peptide Display. FRONTIERS IN PLANT SCIENCE 2017; 8:1125. [PMID: 28702043 PMCID: PMC5487473 DOI: 10.3389/fpls.2017.01125] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 06/12/2017] [Indexed: 05/20/2023]
Abstract
Plant viruses are suitable as building blocks for nanomaterials and nanoparticles because they are easy to modify and can be expressed and purified using plants or heterologous expression systems. Plant virus nanoparticles have been utilized for epitope presentation in vaccines, for drug delivery, as nanospheres and nanowires, and for biomedical imaging applications. Fluorescent protein fusions have been instrumental for the tagging of plant virus particles. The monomeric non-oxygen-dependent fluorescent protein iLOV can be used as an alternative to green fluorescent protein. In this study, the iLOV sequence was genetically fused either directly or via a glycine-serine linker to the C-terminus of the Tobacco mosaic virus (TMV) coat protein (CP) and also carried an N-terminal Foot-and-mouth disease virus (FMDV) 2A sequence. Nicotiana benthamiana plants were inoculated with recombinant viral vectors and a systemic infection was achieved. The presence of iLOV fusion proteins and hybrid particles was confirmed by western blot analysis and transmission electron microscopy. Our data suggest that TMV-based vectors are suitable for the production of proteins at least as large as iLOV when combined with the FMDV 2A sequence. This approach allowed the simultaneous production of foreign proteins fused to the CP as well as free CP subunits.
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Affiliation(s)
| | | | - Ulrich Commandeur
- Institute for Molecular Biotechnology, RWTH Aachen UniversityAachen, Germany
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46
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Chariou PL, Steinmetz NF. Delivery of Pesticides to Plant Parasitic Nematodes Using Tobacco Mild Green Mosaic Virus as a Nanocarrier. ACS NANO 2017; 11:4719-4730. [PMID: 28345874 DOI: 10.1021/acsnano.7b00823] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Plant parasitic nematodes are a major burden to the global agricultural industry, causing a $157 billion loss each year in crop production worldwide. Effective treatment requires large doses of nematicides to be applied, putting the environment and human health at risk. Challenges are to treat nematodes that are located deep within the soil, feeding on the roots of plants. To attack the problem at its roots, we propose the use of tobacco mild green mosaic virus (TMGMV), an EPA-approved herbicide as a carrier to deliver nematicides. TMGMV self-assembles into a 300 × 18 nm soft matter nanorod with a 4 nm-wide hollow channel. This plant virus is comprised of 2130 identical coat protein subunits, each of which displays solvent-exposed carboxylate groups from Glu/Asp as well as Tyr side chains, enabling the functionalization of the carrier with cargo. We report (1) the successful formulation and characterization of TMGMV loaded with ∼1500 copies of the anthelmintic drug crystal violet (CV), (2) the bioavailability and treatment efficacy of CVTMGMV vs CV to nematodes in liquid cultures, and (3) the superior soil mobility of CVTMGMV compared to free CV.
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Affiliation(s)
- Paul L Chariou
- Departments of Biomedical Engineering, ‡Radiology, §Materials Science and Engineering, ∥Macromolecular Science and Engineering, and ⊥Division of General Medical Sciences-Oncology, Case Comprehensive Cancer Center, Case Western Reserve University Schools of Medicine and Engineering , Cleveland, Ohio 44106, United States
| | - Nicole F Steinmetz
- Departments of Biomedical Engineering, ‡Radiology, §Materials Science and Engineering, ∥Macromolecular Science and Engineering, and ⊥Division of General Medical Sciences-Oncology, Case Comprehensive Cancer Center, Case Western Reserve University Schools of Medicine and Engineering , Cleveland, Ohio 44106, United States
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47
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Czapar AE, Steinmetz NF. Plant viruses and bacteriophages for drug delivery in medicine and biotechnology. Curr Opin Chem Biol 2017; 38:108-116. [PMID: 28426952 DOI: 10.1016/j.cbpa.2017.03.013] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 02/21/2017] [Accepted: 03/21/2017] [Indexed: 10/19/2022]
Abstract
There are a wide variety of synthetic and naturally occurring nanomaterials under development for nanoscale cargo-delivery applications. Viruses play a special role in these developments, because they can be regarded as naturally occurring nanomaterials evolved to package and deliver cargos. While any nanomaterial has its advantage and disadvantages, viral nanoparticles (VNPs), in particular the ones derived from plant viruses and bacteriophages, are attractive options for cargo-delivery as they are biocompatible, biodegradable, and non-infectious to mammals. Their protein-based structures are often understood at atomic resolution and are amenable to modification with atomic-level precision through chemical and genetic engineering. Here we present a focused review of the emerging technology development of plant viruses and bacteriophages targeting human health and agricultural applications. Key target areas of development are their use in chemotherapy, photodynamic therapy, pesticide-delivery, gene therapy, vaccine carriers, and immunotherapy.
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Affiliation(s)
- Anna E Czapar
- Department of Pathology, Case Western Reserve University, Schools of Medicine and Engineering, Cleveland, OH 44106, USA
| | - Nicole F Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University, Schools of Medicine and Engineering, Cleveland, OH 44106, USA; Department of Radiology, Case Western Reserve University, Schools of Medicine and Engineering, Cleveland, OH 44106, USA; Department of Materials Science and Engineering, Case Western Reserve University, Schools of Medicine and Engineering, Cleveland, OH 44106, USA; Department of Macromolecular Science and Engineering, Case Western Reserve University, Schools of Medicine and Engineering, Cleveland, OH 44106, USA; Division of General Medical Sciences-Oncology, Case Western Reserve University, Schools of Medicine and Engineering, Cleveland, OH 44106, USA.
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48
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Gulati NM, Pitek AS, Steinmetz NF, Stewart PL. Cryo-electron tomography investigation of serum albumin-camouflaged tobacco mosaic virus nanoparticles. NANOSCALE 2017; 9:3408-3415. [PMID: 28112764 PMCID: PMC5507697 DOI: 10.1039/c6nr06948g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Nanoparticles offer great potential in drug delivery and imaging, but shielding strategies are necessary to increase circulation time and performance. Structure-function studies are required to define the design rules to achieve effective shielding. With several formulations reaching clinical testing and approval, the ability to assess and detail nanoparticle formulations at the single particle level is becoming increasingly important. To address this need, we use cryo-electron tomography (cryo-ET) to investigate stealth-coated nanoparticles. As a model system, we studied the soft matter nanotubes formed by tobacco mosaic virus (TMV) coated with human serum albumin (SA) stealth proteins. Cryo-ET and subtomogram averaging allow for visualization of individual SA molecules and determination of their orientations relative to the TMV surface, and also for measurement of the surface coverage provided by added stealth proteins. This information fills a critical gap in the understanding of the structural morphology of stealth-coated nanoparticles, and therefore cryo-ET may play an important role in guiding the development of future nanoparticle-based therapeutics.
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Affiliation(s)
- Neetu M Gulati
- Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio, USA. and Cleveland Center for Membrane and Structural Biology, Case Western Reserve University, Cleveland, Ohio, USA
| | - Andrzej S Pitek
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, USA
| | - Nicole F Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, USA and Department of Radiology, Case Western Reserve University, Cleveland, Ohio, USA and Department of Materials Science and Engineering, Case Western Reserve University, Cleveland, Ohio, USA and Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio, USA and Case Comprehensive Cancer Center, Division of General Medical Sciences-Oncology, Case Western Reserve University, Cleveland, Ohio, USA.
| | - Phoebe L Stewart
- Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio, USA. and Cleveland Center for Membrane and Structural Biology, Case Western Reserve University, Cleveland, Ohio, USA
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49
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Liu X, Liu B, Gao S, Wang Z, Tian Y, Wu M, Jiang S, Niu Z. Glyco-decorated tobacco mosaic virus as a vector for cisplatin delivery. J Mater Chem B 2017; 5:2078-2085. [PMID: 32263681 DOI: 10.1039/c7tb00100b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Plant viruses have been applied broadly in nanomedical applications profiting from their monodisperse structure, biocompatibility, easy modification, and non-pathogenicity in animals. Here we report a tobacco mosaic virus (TMV) based drug delivery system bearing carbohydrates as targeting ligands. Mannose (Man) and lactose (Lac) moieties were separately conjugated to the exterior surface of TMV (TMV-Man and TMV-Lac) through an efficient copper(i)-catalyzed azide-alkyne cycloaddition. Cisplatin (CDDP), an anticancer drug, was directly loaded into the TMV cavity (CDDP@TMV, CDDP@TMV-Man and CDDP@TMV-Lac) via a metal coordination bond. Through the specific recognition between carbohydrates and glycoproteins in cell membranes, these TMV based vectors show specificity in different cell lines: in the galectin-rich MCF-7 cell line, CDDP@TMV-Man shows enhanced endocytosis and apoptosis efficiency; in the asialoglycoprotein receptor (ASGPR)-overexpressing HepG2 cell line, CDDP@TMV-Lac shows superiority in endocytosis and apoptosis. This research provides a new strategy for tumor-targeted cisplatin delivery.
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Affiliation(s)
- Xiangxiang Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
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50
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Lam P, Keri RA, Steinmetz NF. A Bioengineered Positive Control for Rapid Detection of the Ebola Virus by Reverse Transcription Loop-Mediated Isothermal Amplification (RT-LAMP). ACS Biomater Sci Eng 2017; 3:452-459. [DOI: 10.1021/acsbiomaterials.6b00769] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Patricia Lam
- Department of Biomedical Engineering, ‡Department of Pharmacology, §Department of Genetics, ⊥Case Comprehensive
Cancer Center, Division of General Medical Sciences-Oncology,
- Department of Radiology, #Department of Materials
Science and Engineering, and △Department of Macromolecular Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Ruth A. Keri
- Department of Biomedical Engineering, ‡Department of Pharmacology, §Department of Genetics, ⊥Case Comprehensive
Cancer Center, Division of General Medical Sciences-Oncology,
- Department of Radiology, #Department of Materials
Science and Engineering, and △Department of Macromolecular Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Nicole F. Steinmetz
- Department of Biomedical Engineering, ‡Department of Pharmacology, §Department of Genetics, ⊥Case Comprehensive
Cancer Center, Division of General Medical Sciences-Oncology,
- Department of Radiology, #Department of Materials
Science and Engineering, and △Department of Macromolecular Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
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