51
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Lam P, Steinmetz NF. Plant viral and bacteriophage delivery of nucleic acid therapeutics. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2017; 10. [DOI: 10.1002/wnan.1487] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 05/24/2017] [Accepted: 06/20/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Patricia Lam
- Department of Biomedical EngineeringCase Western Reserve UniversityClevelandOHUSA
| | - Nicole F. Steinmetz
- Department of Biomedical EngineeringCase Western Reserve UniversityClevelandOHUSA
- Department of RadiologyCase Western Reserve UniversityClevelandOHUSA
- Department of Materials Science and EngineeringCase Western Reserve UniversityClevelandOHUSA
- Department of Macromolecular Science and EngineeringCase Western Reserve UniversityClevelandOHUSA
- Division of General Medical Sciences‐Oncology, Case Comprehensive Cancer CenterCase Western Reserve UniversityClevelandOHUSA
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52
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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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53
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Bludau H, Czapar AE, Pitek AS, Shukla S, Jordan R, Steinmetz NF. POxylation as an alternative stealth coating for biomedical applications. Eur Polym J 2017; 88:679-688. [PMID: 28713172 PMCID: PMC5510027 DOI: 10.1016/j.eurpolymj.2016.10.041] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Polyethylene glycol (PEG) polymers are currently used in a variety of medical formulations to reduce toxicity, minimize immune interactions and improve pharmacokinetics. Despite its widespread use however, the presence of anti-PEG antibodies indicates that this polymer has the potential to be immunogenic and antigenic. Here we present an alternative polymer, poly(2-oxazoline) (POx) for stealth applications, specifically shielding of a proteinaceous nanoparticle from recognition by the immune system. Tobacco mosaic virus (TMV) was used as our testbed due to its potential for use as a nanocarrier for drug delivery and molecular imaging applications.
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Affiliation(s)
- Herdis Bludau
- Chair of Macromolecular Chemistry, School of Science, Technische
Unversität Dresden, Mommsenstr. 4, 01069 Dresden, Germany
| | - Anna E. Czapar
- Department of Pathology, Case Western Reserve University, Cleveland,
OH 44106, United States
| | - Andrzej S. Pitek
- Department of Biomedical Engineering, Case Western Reserve
University, Cleveland, OH 44106, United States
| | - Sourabh Shukla
- Department of Biomedical Engineering, Case Western Reserve
University, Cleveland, OH 44106, United States
| | - Rainer Jordan
- Chair of Macromolecular Chemistry, School of Science, Technische
Unversität Dresden, Mommsenstr. 4, 01069 Dresden, Germany
| | - Nicole F. Steinmetz
- Department of Biomedical Engineering, Case Western Reserve
University, Cleveland, OH 44106, United States
- Department of Radiology, Case Western Reserve University, Cleveland,
OH 44106, United States
- Department of Materials Science and Engineering, Case Western
Reserve University, Cleveland, OH 44106, United States
- Department of Macromolecular Science and Engineering, Case Western
Reserve University, Cleveland, OH 44106, United States
- Case Comprehensive Cancer Center, Case Western Reserve University,
Cleveland, OH 44106, United States
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54
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Tiu BDB, Kernan DL, Tiu SB, Wen AM, Zheng Y, Pokorski JK, Advincula RC, Steinmetz NF. Electrostatic layer-by-layer construction of fibrous TMV biofilms. NANOSCALE 2017; 9:1580-1590. [PMID: 28070572 DOI: 10.1039/c6nr06266k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
As nature's choice in designing complex architectures, the bottom-up assembly of nanoscale building blocks offers unique solutions in achieving more complex and smaller morphologies with wide-ranging applications in medicine, energy, and materials science as compared to top-down manufacturing. In this work, we employ charged tobacco mosaic virus (TMV-wt and TMV-lys) nanoparticles in constructing multilayered fibrous networks via electrostatic layer-by-layer (LbL) deposition. In neutral aqueous media, TMV-wt assumes an anionic surface charge. TMV-wt was paired with a genetically engineered TMV-lys variant that displays a corona of lysine side chains on its solvent-exposed surface. The electrostatic interaction between TMV-wt and TMV-lys nanoparticles became the driving force in the highly controlled buildup of the multilayer TMV constructs. Since the resulting morphology closely resembles the 3-dimensional fibrous network of an extracellular matrix (ECM), the capability of the TMV assemblies to support the adhesion of NIH-3T3 fibroblast cells was investigated, demonstrating potential utility in regenerative medicine. Lastly, the layer-by-layer deposition was extended to release the TMV scaffolds as free-standing biomembranes. To demonstrate potential application in drug delivery or vaccine technology, cargo-functionalized TMV biofilms were programmed.
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Affiliation(s)
- Brylee David B Tiu
- Department of Biomedical Engineering, Case Western Reserve University Schools of Medicine and Engineering, Cleveland, OH 44106, USA and Department of Macromolecular Science and Engineering, Case Western Reserve University School of Engineering, Cleveland, OH 44106, USA.
| | - Daniel L Kernan
- Department of Biomedical Engineering, Case Western Reserve University Schools of Medicine and Engineering, Cleveland, OH 44106, USA
| | - Sicily B Tiu
- Department of Macromolecular Science and Engineering, Case Western Reserve University School of Engineering, Cleveland, OH 44106, USA.
| | - Amy M Wen
- Department of Biomedical Engineering, Case Western Reserve University Schools of Medicine and Engineering, Cleveland, OH 44106, USA
| | - Yi Zheng
- Department of Macromolecular Science and Engineering, Case Western Reserve University School of Engineering, Cleveland, OH 44106, USA.
| | - Jonathan K Pokorski
- Department of Macromolecular Science and Engineering, Case Western Reserve University School of Engineering, Cleveland, OH 44106, USA.
| | - Rigoberto C Advincula
- Department of Biomedical Engineering, Case Western Reserve University Schools of Medicine and Engineering, Cleveland, OH 44106, USA and Department of Macromolecular Science and Engineering, Case Western Reserve University School of 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 and Department of Macromolecular Science and Engineering, Case Western Reserve University School of Engineering, Cleveland, OH 44106, USA. and Department of Radiology, Department of Materials Science and Engineering, Case Comprehensive Cancer Center, Case Western Reserve University Schools of Medicine and Engineering, Cleveland, OH 44106, USA.
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55
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Li J, Mao H, Kawazoe N, Chen G. Insight into the interactions between nanoparticles and cells. Biomater Sci 2017; 5:173-189. [DOI: 10.1039/c6bm00714g] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review summarizes the latest advances in nanoparticle (NP)–cell interactions. The influence of NP size, shape, shell structure, surface chemistry and protein corona formation on cellular uptake and cytotoxicity is highlighted in detail. Their impact on other cellular responses such as cell proliferation, differentiation and cellular mechanics is also discussed.
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Affiliation(s)
- Jingchao Li
- International Center for Materials Nanoarchitectonics
- National Institute for Materials Science
- Tsukuba
- Japan
- Department of Materials Science and Engineering
| | - Hongli Mao
- International Center for Materials Nanoarchitectonics
- National Institute for Materials Science
- Tsukuba
- Japan
- Department of Materials Science and Engineering
| | - Naoki Kawazoe
- International Center for Materials Nanoarchitectonics
- National Institute for Materials Science
- Tsukuba
- Japan
| | - Guoping Chen
- International Center for Materials Nanoarchitectonics
- National Institute for Materials Science
- Tsukuba
- Japan
- Department of Materials Science and Engineering
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56
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Wen AM, Steinmetz NF. Design of virus-based nanomaterials for medicine, biotechnology, and energy. Chem Soc Rev 2016; 45:4074-126. [PMID: 27152673 PMCID: PMC5068136 DOI: 10.1039/c5cs00287g] [Citation(s) in RCA: 246] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review provides an overview of recent developments in "chemical virology." Viruses, as materials, provide unique nanoscale scaffolds that have relevance in chemical biology and nanotechnology, with diverse areas of applications. Some fundamental advantages of viruses, compared to synthetically programmed materials, include the highly precise spatial arrangement of their subunits into a diverse array of shapes and sizes and many available avenues for easy and reproducible modification. Here, we will first survey the broad distribution of viruses and various methods for producing virus-based nanoparticles, as well as engineering principles used to impart new functionalities. We will then examine the broad range of applications and implications of virus-based materials, focusing on the medical, biotechnology, and energy sectors. We anticipate that this field will continue to evolve and grow, with exciting new possibilities stemming from advancements in the rational design of virus-based nanomaterials.
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Affiliation(s)
- Amy M Wen
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
| | - Nicole F Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA. and Department of Radiology, Case Western Reserve University, Cleveland, OH 44106, USA and Department of Materials Science and Engineering, Case Western Reserve University, Cleveland, OH 44106, USA and Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106, USA and Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA
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57
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Uskoković V, Wu VM. Calcium Phosphate as a Key Material for Socially Responsible Tissue Engineering. MATERIALS 2016; 9. [PMID: 27347359 PMCID: PMC4917371 DOI: 10.3390/ma9060434] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Socially responsible technologies are designed while taking into consideration the socioeconomic, geopolitical and environmental limitations of regions in which they will be implemented. In the medical context, this involves making therapeutic platforms more accessible and affordable to patients in poor regions of the world wherein a given disease is endemic. This often necessitates going against the reigning trend of making therapeutic nanoparticles ever more structurally complex and expensive. However, studies aimed at simplifying materials and formulations while maintaining the functionality and therapeutic response of their more complex counterparts seldom provoke a significant interest in the scientific community. In this review we demonstrate that such compositional simplifications are meaningful when it comes to the design of a solution for osteomyelitis, a disease that is in its natural, non-postoperative form particularly prevalent in the underdeveloped parts of the world wherein poverty, poor sanitary conditions, and chronically compromised defense lines of the immune system are the norm. We show that calcium phosphate nanoparticles, which are inexpensive to make, could be chemically designed to possess the same functionality as a hypothetic mixture additionally composed of: (a) a bone growth factor; (b) an antibiotic for prophylactic or anti-infective purposes; (c) a bisphosphonate as an antiresorptive compound; (d) a viral vector to enable the intracellular delivery of therapeutics; (e) a luminescent dye; (f) a radiographic component; (g) an imaging contrast agent; (h) a magnetic domain; and (i) polymers as viscous components enabling the injectability of the material and acting as carriers for the sustained release of a drug. In particular, calcium phosphates could: (a) produce tunable drug release profiles; (b) take the form of viscous and injectable, self-setting pastes; (c) be naturally osteo-inductive and inhibitory for osteoclastogenesis; (d) intracellularly deliver bioactive compounds; (e) accommodate an array of functional ions; (f) be processed into macroporous constructs for tissue engineering; and (g) be naturally antimicrobial. All in all, we see in calcium phosphates the presence of a protean nature whose therapeutic potentials have been barely tapped into.
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Affiliation(s)
- Vuk Uskoković
- Department of Bioengineering, University of Illinois, Chicago, IL 60607-7052, USA;
- Department of Biomedical and Pharmaceutical Sciences, Chapman University, Irvine, CA 92618-1908, USA
- Correspondence: or ; Tel.: +1-415-412-0233
| | - Victoria M. Wu
- Department of Bioengineering, University of Illinois, Chicago, IL 60607-7052, USA;
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58
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Shukla S, Dorand RD, Myers JT, Woods SE, Gulati NM, Stewart PL, Commandeur U, Huang AY, Steinmetz NF. Multiple Administrations of Viral Nanoparticles Alter in Vivo Behavior-Insights from Intravital Microscopy. ACS Biomater Sci Eng 2016; 2:829-837. [PMID: 28752131 PMCID: PMC5526635 DOI: 10.1021/acsbiomaterials.6b00060] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Multiple administrations of nanoparticle-based formulations are often a clinical requirement for drug delivery and diagnostic imaging applications. Steady pharmacokinetics of nanoparticles is desirable to achieve efficient therapeutic or diagnostic outcomes over such repeat administrations. While clearance through mononuclear phagocytic system is a key determinant of nanoparticle persistence in vivo, multiple administrations could potentially result in altered pharmacokinetics by evoking innate or adaptive immune responses. Plant viral nanoparticles (VNPs) represent an emerging class of programmable nanoparticle platform technologies that offer a highly organized proteinaceous architecture and multivalency for delivery of large payloads of drugs and molecular contrast agents. These very structural features also render them susceptible to immune recognition and subsequent accelerated systemic clearance that could potentially affect overall efficiency. While the biodistribution and pharmacokinetics of VNPs have been reported, the biological response following repeat administrations remains an understudied area of investigation. Here, we demonstrate that weekly administration of filamentous plant viruses results in the generation of increasing levels of circulating, carrier-specific IgM and IgG antibodies. Furthermore, PVX specific immunoglobulins from the serum of immunized animals quickly form aggregates when incubated with PVX in vitro. Such aggregates of VNP-immune complexes are also observed in the mouse vasculature in vivo following repeat injections when imaged in real time using intravital two-photon laser scanning microscopy (2P-LSM). The size of aggregates diminishes at later time points, coinciding with antibody class switching from IgM to IgG. Together, our results highlight the need for careful in vivo assessment of (viral) nanoparticle-based platform technologies, especially in studying their performance after repeat administration. We also demonstrate the utility of intravital microscopy to aid in this evaluation.
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Affiliation(s)
- Sourabh Shukla
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
- Department of Case Comprehensive Cancer Center, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - R Dixon Dorand
- Department of Pathology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Jay T Myers
- Department of Pediatrics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Sarah E Woods
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Neetu M Gulati
- Department of Pharmacology, and Cleveland Center for Membrane and Structural Biology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Phoebe L Stewart
- Department of Pharmacology, and Cleveland Center for Membrane and Structural Biology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Ulrich Commandeur
- Institute for Molecular Biotechnology, RWTH Aachen University, Worringer Weg 1, 52074 Aachen, Germany
| | - Alex Y Huang
- Department of Case Comprehensive Cancer Center, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
- Department of Pathology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
- Department of Pediatrics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Nicole F Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
- Department of Case Comprehensive Cancer Center, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
- Department of Radiology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
- Department of Macromolecular Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
- Department of Materials Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
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59
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Nekolla K, Kick K, Sellner S, Mildner K, Zahler S, Zeuschner D, Krombach F, Rehberg M. Influence of Surface Modifications on the Spatiotemporal Microdistribution of Quantum Dots In Vivo. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:2641-2651. [PMID: 27028603 DOI: 10.1002/smll.201600071] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 02/20/2016] [Indexed: 06/05/2023]
Abstract
For biomedical applications of nanoconstructs, it is a general prerequisite to efficiently reach the desired target site. In this regard, it is crucial to determine the spatiotemporal distribution of nanomaterials at the microscopic tissue level. Therefore, the effect of different surface modifications on the distribution of microinjected quantum dots (QDs) in mouse skeletal muscle tissue has been investigated. In vivo real-time fluorescence microscopy and particle tracking reveal that carboxyl QDs preferentially attach to components of the extracellular matrix (ECM), whereas QDs coated with polyethylene glycol (PEG) show little interaction with tissue constituents. Transmission electron microscopy elucidates that carboxyl QDs adhere to collagen fibers as well as basement membranes, a type of ECM located on the basolateral side of blood vessel walls. Moreover, carboxyl QDs have been found in endothelial junctions as well as in caveolae of endothelial cells, enabling them to translocate into the vessel lumen. The in vivo QD distribution is confirmed by in vitro experiments. The data suggest that ECM components act as a selective barrier depending on QD surface modification. For future biomedical applications, such as targeting of blood vessel walls, the findings of this study offer design criteria for nanoconstructs that meet the requirements of the respective application.
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Affiliation(s)
- Katharina Nekolla
- Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-Universität München, Marchioninistr, 15, 81377, Munich, Germany
| | - Kerstin Kick
- Department of Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, Munich, Germany
| | - Sabine Sellner
- Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-Universität München, Marchioninistr, 15, 81377, Munich, Germany
| | - Karina Mildner
- Max Planck Institute for Molecular Biomedicine, Röntgenstr. 20, 48149, Münster, Germany
| | - Stefan Zahler
- Department of Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, Munich, Germany
| | - Dagmar Zeuschner
- Max Planck Institute for Molecular Biomedicine, Röntgenstr. 20, 48149, Münster, Germany
| | - Fritz Krombach
- Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-Universität München, Marchioninistr, 15, 81377, Munich, Germany
| | - Markus Rehberg
- Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-Universität München, Marchioninistr, 15, 81377, Munich, Germany
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60
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Pitek AS, Jameson SA, Veliz FA, Shukla S, Steinmetz NF. Serum albumin 'camouflage' of plant virus based nanoparticles prevents their antibody recognition and enhances pharmacokinetics. Biomaterials 2016; 89:89-97. [PMID: 26950168 PMCID: PMC5127400 DOI: 10.1016/j.biomaterials.2016.02.032] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Revised: 02/16/2016] [Accepted: 02/22/2016] [Indexed: 10/22/2022]
Abstract
Plant virus-based nanoparticles (VNPs) are a novel class of nanocarriers with unique potential for biomedical applications. VNPs have many advantageous properties such as ease of manufacture and high degree of quality control. Their biocompatibility and biodegradability make them an attractive alternative to synthetic nanoparticles (NPs). Nevertheless, as with synthetic NPs, to be successful in drug delivery or imaging, the carriers need to overcome several biological barriers including innate immune recognition. Plasma opsonization can tag (V)NPs for clearance by the mononuclear phagocyte system (MPS), resulting in shortened circulation half lives and non-specific sequestration in non-targeted organs. PEG coatings have been traditionally used to 'shield' nanocarriers from immune surveillance. However, due to broad use of PEG in cosmetics and other industries, the prevalence of anti-PEG antibodies has been reported, which may limit the utility of PEGylation in nanomedicine. Alternative strategies are needed to tailor the in vivo properties of (plant virus-based) nanocarriers. We demonstrate the use of serum albumin (SA) as a viable alternative. SA conjugation to tobacco mosaic virus (TMV)-based nanocarriers results in a 'camouflage' effect more effective than PEG coatings. SA-'camouflaged' TMV particles exhibit decreased antibody recognition, as well as enhanced pharmacokinetics in a Balb/C mouse model. Therefore, SA-coatings may provide an alternative and improved coating technique to yield (plant virus-based) NPs with improved in vivo properties enhancing drug delivery and molecular imaging.
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Affiliation(s)
- Andrzej S Pitek
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Slater A Jameson
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Frank A Veliz
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Sourabh Shukla
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Nicole F Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA; Department of Radiology, Case Western Reserve University, Cleveland, OH 44106, USA; Department of Materials Science and Engineering, Case Western Reserve University, Cleveland, OH 44106, USA; Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106, USA; Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA.
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61
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Wen AM, Lee KL, Cao P, Pangilinan K, Carpenter BL, Lam P, Veliz FA, Ghiladi RA, Advincula RC, Steinmetz NF. Utilizing Viral Nanoparticle/Dendron Hybrid Conjugates in Photodynamic Therapy for Dual Delivery to Macrophages and Cancer Cells. Bioconjug Chem 2016; 27:1227-35. [PMID: 27077475 DOI: 10.1021/acs.bioconjchem.6b00075] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Photodynamic therapy (PDT) is a promising avenue for greater treatment efficacy of highly resistant and aggressive melanoma. Through photosensitizer attachment to nanoparticles, specificity of delivery can be conferred to further reduce potential side effects. While the main focus of PDT is the destruction of cancer cells, additional targeting of tumor-associated macrophages also present in the tumor microenvironment could further enhance treatment by eliminating their role in processes such as invasion, metastasis, and immunosuppression. In this study, we investigated PDT of macrophages and tumor cells through delivery using the natural noninfectious nanoparticle cowpea mosaic virus (CPMV), which has been shown to have specificity for the immunosuppressive subpopulation of macrophages and also targets cancer cells. We further explored conjugation of CPMV/dendron hybrids in order to improve the drug loading capacity of the nanocarrier. Overall, we demonstrated effective elimination of both macrophage and tumor cells at low micromolar concentrations of the photosensitizer when delivered with the CPMV bioconjugate, thereby potentially improving melanoma treatment.
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Affiliation(s)
| | | | | | | | - Bradley L Carpenter
- Department of Chemistry, North Carolina State University , Raleigh, North Carolina 27695, United States
| | | | | | - Reza A Ghiladi
- Department of Chemistry, North Carolina State University , Raleigh, North Carolina 27695, United States
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62
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Chariou PL, Lee KL, Pokorski JK, Saidel GM, Steinmetz NF. Diffusion and Uptake of Tobacco Mosaic Virus as Therapeutic Carrier in Tumor Tissue: Effect of Nanoparticle Aspect Ratio. J Phys Chem B 2016; 120:6120-9. [PMID: 27045770 DOI: 10.1021/acs.jpcb.6b02163] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nanoparticle-based technologies, including platforms derived from plant viruses, hold great promise for targeting and delivering cancer therapeutics to solid tumors by overcoming dose-limiting toxicities associated with chemotherapies. A growing body of data indicates advantageous margination and penetration properties of high aspect-ratio nanoparticles, which enhance payload delivery, resulting in increased efficacy. Our lab has demonstrated that elongated rod-shaped and filamentous macromolecular nucleoprotein assemblies from plant viruses have higher tissue diffusion rates than spherical particles. In this study, we developed a mathematical model to quantify diffusion and uptake of tobacco mosaic virus (TMV) in a spheroid system approximating a capillary-free segment of a solid tumor. Model simulations predict TMV concentration distribution with time in a tumor spheroid for different sizes and cell densities. From simulations of TMV concentration distribution, we can quantify the effect of TMV aspect ratio (e.g., nanorod length-to-width) with and without cellular uptake by modulated surface chemistry. This theoretical analysis can be applied to other viral or nonviral delivery systems to complement the experimental development of the next generation of nanotherapeutics.
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Affiliation(s)
- Paul L Chariou
- Department of Biomedical Engineering, Case Western Reserve University Schools of Medicine and Engineering , Cleveland, Ohio 44106, United States
| | - Karin L Lee
- Department of Biomedical Engineering, Case Western Reserve University Schools of Medicine and Engineering , Cleveland, Ohio 44106, United States
| | - Jonathan K Pokorski
- Department of Radiology, Case Western Reserve University School of Engineering , Cleveland, Ohio 44106, United States
| | - Gerald M Saidel
- Department of Biomedical Engineering, Case Western Reserve University Schools of Medicine and Engineering , Cleveland, Ohio 44106, United States
| | - Nicole F Steinmetz
- Department of Biomedical Engineering, Case Western Reserve University Schools of Medicine and Engineering , Cleveland, Ohio 44106, United States.,Department of Radiology, Case Western Reserve University School of Engineering , Cleveland, Ohio 44106, United States.,Department of Materials Science and Engineering, Case Western Reserve University School of Engineering , Cleveland, Ohio 44106, United States.,Department of Macromolecular Science and Engineering, Case Western Reserve University School of Engineering , Cleveland, Ohio 44106, United States.,Department of Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine , Cleveland, Ohio 44106, United States
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63
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Palchetti S, Pozzi D, Mahmoudi M, Caracciolo G. Exploitation of nanoparticle–protein corona for emerging therapeutic and diagnostic applications. J Mater Chem B 2016; 4:4376-4381. [DOI: 10.1039/c6tb01095d] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Exposure of nanoparticles (NPs) to biological fluids (e.g., plasma, interstitial fluid, and cytoplasm) leads to the absorption of proteins on the NP surface, forming a protein corona (PC) that drastically influences the NP physicochemical properties.
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Affiliation(s)
- S. Palchetti
- Department of Molecular Medicine
- Rome
- Italy
- Istituti Fisioterapici Ospitalieri
- Istituto Regina Elena
| | - D. Pozzi
- Department of Molecular Medicine
- Rome
- Italy
- Istituti Fisioterapici Ospitalieri
- Istituto Regina Elena
| | - M. Mahmoudi
- Department of Nanotechnology and Nanotechnology Research Center
- Faculty of Pharmacy
- Tehran University of Medical Sciences
- Tehran 13169-43551
- Iran
| | - G. Caracciolo
- Department of Molecular Medicine
- Rome
- Italy
- Istituti Fisioterapici Ospitalieri
- Istituto Regina Elena
| |
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