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Hong J, Sim D, Lee BH, Sarangthem V, Park RW. Multifunctional elastin-like polypeptide nanocarriers for efficient miRNA delivery in cancer therapy. J Nanobiotechnology 2024; 22:293. [PMID: 38802812 PMCID: PMC11131307 DOI: 10.1186/s12951-024-02559-5] [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: 01/27/2024] [Accepted: 05/16/2024] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND The exogenous delivery of miRNA to mimic and restore miRNA-34a activity in various cancer models holds significant promise in cancer treatment. Nevertheless, its effectiveness is often impeded by challenges, including a short half-life, propensity for off-target accumulation, susceptibility to inactivation by blood-based enzymes, concerns regarding patient safety, and the substantial cost associated with scaling up. As a means of overcoming these barriers, we propose the development of miRNA-loaded Tat-A86 nanoparticles by virtue of Tat-A86's ability to shield the loaded agent from external environmental factors, reducing degradation and inactivation, while enhancing circulation time and targeted accumulation. RESULTS Genetically engineered Tat-A86, featuring 16 copies of the interleukin-4 receptor (IL-4R)-binding peptide (AP1), Tat for tumor penetration, and an elastin-like polypeptide (ELP) for presenting target ligands and ensuring stability, served as the basis for this delivery system. Comparative groups, including Tat-E60 and A86, were employed to discern differences in binding and penetration. The designed ELP-based nanoparticle Tat-A86 effectively condensed miRNA, forming stable nanocomplexes under physiological conditions. The miRNA/Tat-A86 formulation bound specifically to tumor cells and facilitated stable miRNA delivery into them, effectively inhibiting tumor growth. The efficacy of miRNA/Tat-A86 was further evaluated using three-dimensional spheroids of lewis lung carcinoma (LLC) as in vitro model and LLC tumor-bearing mice as an in vivo model. It was found that miRNA/Tat-A86 facilitates effective cell killing by markedly improving miRNA penetration, leading to a substantial reduction in the size of LLC spheroids. Compared to other controls, Tat-A86 demonstrated superior efficacy in suppressing the growth of 3D cellular aggregates. Moreover, at equivalent doses, miRNA-34a delivered by Tat-A86 inhibited the growth of LLC cells in allograft mice. CONCLUSIONS Overall, these studies demonstrate that Tat-A86 nanoparticles can deliver miRNA systemically, overcoming the basic hurdles impeding miRNA delivery by facilitating both miRNA uptake and stability, ultimately leading to improved therapeutic effects.
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Affiliation(s)
- Jisan Hong
- Department of Biochemistry and Cell Biology, Cell & Matrix Research Institute, Kyungpook National University, School of Medicine, Daegu, 41944, Republic of Korea
| | - Dahye Sim
- Department of Biochemistry and Cell Biology, Cell & Matrix Research Institute, Kyungpook National University, School of Medicine, Daegu, 41944, Republic of Korea
| | - Byung-Heon Lee
- Department of Biochemistry and Cell Biology, Cell & Matrix Research Institute, Kyungpook National University, School of Medicine, Daegu, 41944, Republic of Korea
| | - Vijaya Sarangthem
- Department of Biochemistry and Cell Biology, Cell & Matrix Research Institute, Kyungpook National University, School of Medicine, Daegu, 41944, Republic of Korea.
| | - Rang-Woon Park
- Department of Biochemistry and Cell Biology, Cell & Matrix Research Institute, Kyungpook National University, School of Medicine, Daegu, 41944, Republic of Korea.
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2
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Eweje F, Walsh ML, Ahmad K, Ibrahim V, Alrefai A, Chen J, Chaikof EL. Protein-based nanoparticles for therapeutic nucleic acid delivery. Biomaterials 2024; 305:122464. [PMID: 38181574 PMCID: PMC10872380 DOI: 10.1016/j.biomaterials.2023.122464] [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: 09/23/2023] [Revised: 12/25/2023] [Accepted: 12/31/2023] [Indexed: 01/07/2024]
Abstract
To realize the full potential of emerging nucleic acid therapies, there is a need for effective delivery agents to transport cargo to cells of interest. Protein materials exhibit several unique properties, including biodegradability, biocompatibility, ease of functionalization via recombinant and chemical modifications, among other features, which establish a promising basis for therapeutic nucleic acid delivery systems. In this review, we highlight progress made in the use of non-viral protein-based nanoparticles for nucleic acid delivery in vitro and in vivo, while elaborating on key physicochemical properties that have enabled the use of these materials for nanoparticle formulation and drug delivery. To conclude, we comment on the prospects and unresolved challenges associated with the translation of protein-based nucleic acid delivery systems for therapeutic applications.
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Affiliation(s)
- Feyisayo Eweje
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA; Harvard and MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA; Harvard/MIT MD-PhD Program, Boston, MA, USA, 02115; Wyss Institute of Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Michelle L Walsh
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA; Harvard and MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA; Harvard/MIT MD-PhD Program, Boston, MA, USA, 02115
| | - Kiran Ahmad
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA
| | - Vanessa Ibrahim
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA
| | - Assma Alrefai
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA
| | - Jiaxuan Chen
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA; Wyss Institute of Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA.
| | - Elliot L Chaikof
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA; Wyss Institute of Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA.
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3
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Stepanova M, Nikiforov A, Tennikova T, Korzhikova-Vlakh E. Polypeptide-Based Systems: From Synthesis to Application in Drug Delivery. Pharmaceutics 2023; 15:2641. [PMID: 38004619 PMCID: PMC10674432 DOI: 10.3390/pharmaceutics15112641] [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: 10/08/2023] [Revised: 11/02/2023] [Accepted: 11/16/2023] [Indexed: 11/26/2023] Open
Abstract
Synthetic polypeptides are biocompatible and biodegradable macromolecules whose composition and architecture can vary over a wide range. Their unique ability to form secondary structures, as well as different pathways of modification and biofunctionalization due to the diversity of amino acids, provide variation in the physicochemical and biological properties of polypeptide-containing materials. In this review article, we summarize the advances in the synthesis of polypeptides and their copolymers and the application of these systems for drug delivery in the form of (nano)particles or hydrogels. The issues, such as the diversity of polypeptide-containing (nano)particle types, the methods for their preparation and drug loading, as well as the influence of physicochemical characteristics on stability, degradability, cellular uptake, cytotoxicity, hemolysis, and immunogenicity of polypeptide-containing nanoparticles and their drug formulations, are comprehensively discussed. Finally, recent advances in the development of certain drug nanoformulations for peptides, proteins, gene delivery, cancer therapy, and antimicrobial and anti-inflammatory systems are summarized.
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Affiliation(s)
- Mariia Stepanova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004 St. Petersburg, Russia; (M.S.); (A.N.)
| | - Alexey Nikiforov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004 St. Petersburg, Russia; (M.S.); (A.N.)
| | - Tatiana Tennikova
- Institute of Chemistry, Saint-Petersburg State University, Universitetskiy pr. 26, Petergof, 198504 St. Petersburg, Russia
| | - Evgenia Korzhikova-Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004 St. Petersburg, Russia; (M.S.); (A.N.)
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4
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Morey M, Larrañaga A, Abbah SA, Bohara R, Aljaabary A, Pandit A. Glucose-Responsive Fibrin Hydrogel-Based Multimodal Nucleic Acid Delivery System. Adv Biol (Weinh) 2023; 7:e2300161. [PMID: 37401646 DOI: 10.1002/adbi.202300161] [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: 04/27/2023] [Indexed: 07/05/2023]
Abstract
Nucleic acid therapy has emerged as a potential alternative for promoting wound healing by gene expression modification. On the other hand, protecting the nucleic acid payload from degradation, efficient bioresponsive delivery and effective transfection into cells remain challenging. A glucose-responsive gene delivery system for treating diabetic wounds would be advantageous as it would be responsive to the underlying pathology giving a regulated payload delivery with fewer side effects. Herein a GOx-based glucose-responsive delivery system is designed based on fibrin-coated polymeric microcapsules (FCPMC) using the layer-by-layer (LbL) approach that simultaneously delivers two nucleic acids in diabetic wounds. The designed FCPMC displays an ability to effectively load many nucleic acids in polyplexes and release it over a prolonged period with no cytotoxic effects seen in in vitro studies. Furthermore, the developed system does not show any undesired effects in vivo. When applied to wounds in genetically diabetic db/db mice, the fabricated system on its own improves reepithelialization and angiogenesis while decreasing inflammation. Also, key proteins involved in the wound healing process, i.e., Actn2, MYBPC1, and desmin, are upregulated in the glucose-responsive fibrin hydrogel (GRFHG) treated group of animals. In conclusion, the fabricated hydrogel promotes wound healing. Furthermore, the system may be encapsulated with various therapeutic nucleic acids that aid wound healing.
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Affiliation(s)
- Mangesh Morey
- CÚRAM, SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland
| | - Aitor Larrañaga
- CÚRAM, SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland
| | - Sunny Akogwu Abbah
- CÚRAM, SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland
| | - Raghvendra Bohara
- CÚRAM, SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland
| | - Amal Aljaabary
- CÚRAM, SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland
| | - Abhay Pandit
- CÚRAM, SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland
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5
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Exploiting the layer-by-layer nanoarchitectonics for the fabrication of polymer capsules: A toolbox to provide multifunctional properties to target complex pathologies. Adv Colloid Interface Sci 2022; 304:102680. [PMID: 35468354 DOI: 10.1016/j.cis.2022.102680] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/12/2022] [Accepted: 04/13/2022] [Indexed: 01/12/2023]
Abstract
Polymer capsules fabricated via the layer-by-layer (LbL) approach have attracted a great deal of attention for biomedical applications thanks to their tunable architecture. Compared to alternative methods, in which the precise control over the final properties of the systems is usually limited, the intrinsic versatility of the LbL approach allows the functionalization of all the constituents of the polymeric capsules following relatively simple protocols. In fact, the final properties of the capsules can be adjusted from the inner cavity to the outer layer through the polymeric shell, resulting in therapeutic, diagnostic, or theranostic (i.e., combination of therapeutic and diagnostic) agents that can be adapted to the particular characteristics of the patient and face the challenges encountered in complex pathologies. The biomedical industry demands novel biomaterials capable of targeting several mechanisms and/or cellular pathways simultaneously while being tracked by minimally invasive techniques, thus highlighting the need to shift from monofunctional to multifunctional polymer capsules. In the present review, those strategies that permit the advanced functionalization of polymer capsules are accordingly introduced. Each of the constituents of the capsule (i.e., cavity, multilayer membrane and outer layer) is thoroughly analyzed and a final overview of the combination of all the strategies toward the fabrication of multifunctional capsules is presented. Special emphasis is given to the potential biomedical applications of these multifunctional capsules, including particular examples of the performed in vitro and in vivo validation studies. Finally, the challenges in the fabrication process and the future perspective for their safe translation into the clinic are summarized.
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6
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Machado TO, Grabow J, Sayer C, de Araújo PHH, Ehrenhard ML, Wurm FR. Biopolymer-based nanocarriers for sustained release of agrochemicals: A review on materials and social science perspectives for a sustainable future of agri- and horticulture. Adv Colloid Interface Sci 2022; 303:102645. [PMID: 35358807 DOI: 10.1016/j.cis.2022.102645] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/04/2022] [Accepted: 03/17/2022] [Indexed: 11/20/2022]
Abstract
Devastating plant diseases and soil depletion rationalize an extensive use of agrochemicals to secure the food production worldwide. The sustained release of fertilizers and pesticides in agriculture is a promising solution to the eco-toxicological impacts and it might reduce the amount and increase the effectiveness of agrochemicals administration in the field. This review article focusses on carriers with diameters below 1 μm, such as capsules, spheres, tubes and micelles that promote the sustained release of actives. Biopolymer nanocarriers represent a potentially environmentally friendly alternative due to their renewable origin and biodegradability, which prevents the formation of microplastics. The social aspects, economic potential, and success of commercialization of biopolymer based nanocarriers are influenced by the controversial nature of nanotechnology and depend on the use case. Nanotechnology's enormous innovative power is only able to unfold its potential to limit the effects of climate change and to counteract current environmental developments if the perceived risks are understood and mitigated.
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Affiliation(s)
- Thiago O Machado
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, PO Box 476, Florianópolis, SC 88040-900, Brazil
| | - Justin Grabow
- Sustainable Polymer Chemistry Group, MESA+ Institute for Nanotechnology, Faculty of Science and Technology, Universiteit Twente, PO Box 217, 7500 AE Enschede, The Netherlands; Faculty of Behavioural Management and Social Sciences, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands
| | - Claudia Sayer
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, PO Box 476, Florianópolis, SC 88040-900, Brazil
| | - Pedro H H de Araújo
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, PO Box 476, Florianópolis, SC 88040-900, Brazil
| | - Michel L Ehrenhard
- Faculty of Behavioural Management and Social Sciences, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands.
| | - Frederik R Wurm
- Sustainable Polymer Chemistry Group, MESA+ Institute for Nanotechnology, Faculty of Science and Technology, Universiteit Twente, PO Box 217, 7500 AE Enschede, The Netherlands.
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7
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Application of bioengineered elastin-like polypeptide-based system for targeted gene delivery in tumor cells. BIOMATERIALS AND BIOSYSTEMS 2022; 6:100050. [PMID: 36824163 PMCID: PMC9934475 DOI: 10.1016/j.bbiosy.2022.100050] [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: 12/25/2021] [Revised: 03/28/2022] [Accepted: 04/15/2022] [Indexed: 11/20/2022] Open
Abstract
Successful gene delivery depends on the entry of negatively charged DNAs and oligonucleotides across the various barriers of the tumor cells and localization into the nucleus for its transcription and protein translation. Here, we have reported a thermal responsive self-assemble and highly biocompatible, targeted ELP-based gene delivery system. These systems consist of cell-penetrating peptides, Tat and single or multiple repeats of IL-4 receptor targeting peptide AP-1 along the backbone of ELP. Cell-penetrating peptides were introduced for nuclear localization of genes of interest, AP-1 for targeting IL-4R highly expressed tumor cells and ELP for stable condensation favoring protection of nucleic acids. The designed multidomain fusion ELPs referred to as Tat-ELP, Tat-A1E28 and Tat-A4V48 were employed to generate formulation with pEGFP-N1. Profound formulation of stable complexes occurred at different molar ratios owing to electrostatic interactions of positively charged amino acids in polymers with negatively charged nucleic acids. Among the complexes, Tat-A4V48 containing four copies of AP-1 showed maximum complexation with pEGFP-N1 in lower molar ratio. The polymer-pEGFP complexes were further analyzed for its transfection efficiency in different cancer cell lines. Both the targeted polymers, Tat-A4V48 and Tat-A1E28 upon transfection displayed significant EGFP-expression with low toxicity in different cancer cells. Therefore, both Tat-A4V48 and Tat-A1E28 can be considered as novel transfection system for successful gene delivery with therapeutic applications.
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8
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Er S, Laraib U, Arshad R, Sargazi S, Rahdar A, Pandey S, Thakur VK, Díez-Pascual AM. Amino Acids, Peptides, and Proteins: Implications for Nanotechnological Applications in Biosensing and Drug/Gene Delivery. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3002. [PMID: 34835766 PMCID: PMC8622868 DOI: 10.3390/nano11113002] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 10/31/2021] [Accepted: 11/03/2021] [Indexed: 12/14/2022]
Abstract
Over various scientific fields in biochemistry, amino acids have been highlighted in research works. Protein, peptide- and amino acid-based drug delivery systems have proficiently transformed nanotechnology via immense flexibility in their features for attaching various drug molecules and biodegradable polymers. In this regard, novel nanostructures including carbon nanotubes, electrospun carbon nanofibers, gold nanoislands, and metal-based nanoparticles have been introduced as nanosensors for accurate detection of these organic compounds. These nanostructures can bind the biological receptor to the sensor surface and increase the surface area of the working electrode, significantly enhancing the biosensor performance. Interestingly, protein-based nanocarriers have also emerged as useful drug and gene delivery platforms. This is important since, despite recent advancements, there are still biological barriers and other obstacles limiting gene and drug delivery efficacy. Currently available strategies for gene therapy are not cost-effective, and they do not deliver the genetic cargo effectively to target sites. With rapid advancements in nanotechnology, novel gene delivery systems are introduced as nonviral vectors such as protein, peptide, and amino acid-based nanostructures. These nano-based delivery platforms can be tailored into functional transformation using proteins and peptides ligands based nanocarriers, usually overexpressed in the specified diseases. The purpose of this review is to shed light on traditional and nanotechnology-based methods to detect amino acids, peptides, and proteins. Furthermore, new insights into the potential of amino protein-based nanoassemblies for targeted drug delivery or gene transfer are presented.
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Affiliation(s)
- Simge Er
- Biochemistry Department, Faculty of Science, Ege University, Bornova-Izmir 35100, Turkey;
| | - Ushna Laraib
- Department of Pharmacy, College of Pharmacy, University of Sargodha, Sargodha 40100, Pakistan;
| | - Rabia Arshad
- Department of Pharmacy, Quaid-i-Azam University, Islamabad 45320, Pakistan;
| | - Saman Sargazi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan 9816743463, Iran;
| | - Abbas Rahdar
- Department of Physics, Faculty of Science, University of Zabol, Zabol 538-98615, Iran
| | - Sadanand Pandey
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Korea;
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Centre, Scotland’s Rural College (SRUC), Kings Buildings, Edinburgh EH9 3JG, UK;
- School of Engineering, University of Petroleum & Energy Studies (UPES), Dehradun 248007, Uttarakhand, India
| | - Ana M. Díez-Pascual
- Universidad de Alcalá, Facultad de Ciencias, Departamento de Química Analítica, Química Física e Ingeniería Química, Ctra. Madrid-Barcelona, Km. 33.6, 28805 Alcalá de Henares, Madrid, Spain
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9
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Bharadwaz A, Jayasuriya AC. Fabrication of porous chitosan particles using a novel two-step porogen leaching and lyophilization method with the label-free multivariate spectral assessment of live adhered cells. Colloids Surf B Biointerfaces 2021; 208:112094. [PMID: 34500203 DOI: 10.1016/j.colsurfb.2021.112094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/27/2021] [Accepted: 08/31/2021] [Indexed: 01/15/2023]
Abstract
Porous chitosan (CS) particles were fabricated using a novel two-step technique that employed a porogen leaching phase followed by lyophilization or freeze-drying. Poly(ethylene glycol) (PEG) was mixed as a porogen in two different quantities with the CS solution before particle synthesis via coacervation. After the PEG leached out into deionized (DI) water at an elevated constant temperature, the final freeze-dried CS particles revealed surface features that resembled pore pockets. A three-dimensional (3D) culture of murine osteoblast cell line (OB-6) was seeded on these particles to analyze the effect of the porous structure on the cell activity, as compared to a control group with no added porogen. The results highlighted an enhancement in cell adhesion and proliferation on the two porous sample groups. A Raman spectroscopy-based label-free technique for live cell biomarker analysis was applied using multivariate spectral analysis. Results of the spectral analysis in the molecular fingerprint region corresponding to the Raman shift between 900 cm-1 and 1700 cm-1inferred inter-group variations. The bands at 1005 cm-1 and 1375 cm-1 were assigned to the live cell biomarkers phenylalanine and glycosaminoglycan, respectively, and were assessed during the multivariate spectral analysis. The corresponding score plot and loading information generated from the Principal Component Analysis (PCA) of the Raman spectrum at day 7 and day 14, pointed at inter-group spectral variations related to cell adhesion and proliferation between the two porous CS particle groups and the control.
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Affiliation(s)
- Angshuman Bharadwaz
- Biomedical Engineering Program, Department of Bioengineering, College of Engineering, The University of Toledo, Toledo, OH, 43606, USA
| | - Ambalangodage C Jayasuriya
- Biomedical Engineering Program, Department of Bioengineering, College of Engineering, The University of Toledo, Toledo, OH, 43606, USA; Department of Orthopaedic Surgery, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH, 43614, USA.
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Yasun E, Gandhi S, Choudhury S, Mohammadinejad R, Benyettou F, Gozubenli N, Arami H. Hollow micro and nanostructures for therapeutic and imaging applications. J Drug Deliv Sci Technol 2020; 60:102094. [PMID: 34335877 PMCID: PMC8320649 DOI: 10.1016/j.jddst.2020.102094] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Hollow particles have been extensively used in bioanalytical and biomedical applications for almost two decades due to their unique and tunable optoelectronic properties as well as their significantly high loading capacities. These intrinsic properties led them to be used in various bioimaging applications as contrast agents, controlled delivery (i.e. drugs, nucleic acids and other biomolecules) platforms and photon-triggered therapies (e.g. photothermal and photodynamic therapies). Since recent studies showed that imaging-guided targeted therapeutics have higher success rates, multimodal theranostic platforms (combination of one or more therapy and diagnosis modality) have been employed more often and hollow particles (i.e. nanoshells) have been one of the most efficient candidates to be used in multiple-purpose platforms, owing to their intrinsic properties that enable synergistic multimodal performance. In this review, recent advances in the applications of such hollow particles fabricated with various routes (either inorganic or organic based) were summarized to delineate strategies for tuning their properties for more efficient biomedical performance by overcoming common biological barriers. This review will pave the ways for expedited progress in design of next generation of hollow particles for clinical applications.
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Affiliation(s)
- Emir Yasun
- University of California, Santa Barbara and California NanoSystems Institute (CNSI), Santa Barbara, CA, 93106, USA
| | - Sonu Gandhi
- DBT-National Institute of Animal Biotechnology, Hyderabad, 500032, Telangana, India
| | - Samraggi Choudhury
- DBT-National Institute of Animal Biotechnology, Hyderabad, 500032, Telangana, India
| | - Reza Mohammadinejad
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Farah Benyettou
- New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Numan Gozubenli
- Molecular Biology and Genetics Department, Harran University, Sanliurfa, Turkey
| | - Hamed Arami
- Department of Radiology, Stanford School of Medicine, Stanford, CA, USA
- Molecular Imaging Program at Stanford (MIPS), The James H Clark Center, Stanford University, Stanford, CA, USA
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11
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Sarvari R, Nouri M, Agbolaghi S, Roshangar L, Sadrhaghighi A, Seifalian AM, Keyhanvar P. A summary on non-viral systems for gene delivery based on natural and synthetic polymers. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1825081] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Raana Sarvari
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Stem Cell And Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Nouri
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Samira Agbolaghi
- Chemical Engineering Department, Faculty of Engineering, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Laila Roshangar
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amirhouman Sadrhaghighi
- Department of Orthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alexander M. Seifalian
- Nanotechnology and Regenerative Medicine Commercialization Centre (Ltd), The London Innovation Bio Science Centre, London, UK
| | - Peyman Keyhanvar
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Medical Nanotechnology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Convergence of Knowledge, Technology and Society Network (CKTSN), Universal Scientific Education and Research Network (USERN), Tabriz, Iran
- ARTAN110 Startup Accelerator, Tabriz, Iran
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12
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Peddi S, Roberts SK, MacKay JA. Nanotoxicology of an Elastin-like Polypeptide Rapamycin Formulation for Breast Cancer. Biomacromolecules 2020; 21:1091-1102. [PMID: 31927993 PMCID: PMC7219203 DOI: 10.1021/acs.biomac.9b01431] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The clinical utility of rapamycin (Rapa) is limited by solubility, bioavailability, and side effects. To overcome this, our team recently reported an elastin-like polypeptide (ELP) nanoparticle with high affinity, noncovalent drug binding, and integrin-mediated cellular uptake. Given the scarcity of pharmacology/toxicology studies of ELP-based drug carriers, this article explores safety and efficacy of ELP-Rapa. ELP-Rapa nanoparticles tested negative for hemolysis, did not interfere in plasma coagulation nor in platelet function, and did not activate the complement. Upon incubation with HepG2 cells, ELP-Rapa revealed significant cellular uptake and trafficking to acidic organelles, consistent with lysosomes. Internalized ELP-Rapa nanoparticles increased oxidative stress 4-fold compared to free drug or free ELP controls. However, mice bearing orthotopic hormone receptor positive BT-474 breast tumors, given a high dose (∼10-fold above therapeutic dose) of 1 month administration of ELP-Rapa, did not induce hepatotoxicity. On the other hand, tumor growth and mTOR signaling were suppressed without affecting body weight. Nanoparticles assembled using ELP technology appear to be a safe and efficient strategy for delivering Rapa.
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Affiliation(s)
- Santosh Peddi
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy at the University of Southern California, Los Angeles, California 90033-9121, United States
| | - S Kenny Roberts
- Eunoia Biotech LLC, Wynnewood, Pennsylvania 19096, United States
| | - John Andrew MacKay
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy at the University of Southern California, Los Angeles, California 90033-9121, United States
- Department of Biomedical Engineering, Viterbi School of Engineering at the University of Southern California, Los Angeles, California 90089, United States
- Department of Ophthalmology, Keck School of Medicine at the University of Southern California, Los Angeles, California 90089-9020, United States
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13
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Morales MA, Paiva WA, Marvin L, Balog ERM, Halpern JM. Electrochemical characterization of the stimuli-response of surface-immobilized elastin-like polymers. SOFT MATTER 2019; 15:9640-9646. [PMID: 31670364 DOI: 10.1039/c9sm01681c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Elastin-like polymers (ELPs) are frequently used in a variety of bioengineering applications because of their stimuli-responsive properties. Above their transition temperature, ELPs will adopt different structures that promote intra- and intermolecular hydrophobic contacts to minimize unfavorable interactions with an aqueous environment. We electrochemically characterize the stimuli-responsive behavior of surface-immobilized ELPs corresponding to two proposed states: extended and collapsed. In the extended state the ELPs are more solvated. In the collapsed state, triggered by introducing an environmental stimulus, non-polar intramolecular contacts within ELPs are favored, resulting in quantifiable morphological changes on the surface characterized using electrochemical impedance spectroscopy (EIS). Charge transfer resistance, a component of impedance, was shown to increase after exposing an ELP modified electrode to a high salt concentration environment (3.0 M NaCl). An increase in charge transfer resistance indicates an increase in the insulating layer on the electrode surface consistent with the proposed mechanism of collapse, as the ELPs have undergone morphological changes to hinder the kinetics of the redox couple exchange. Further characterization of the surface-immobilized ELPs showed a reproducible surface modification, as well as reversibility and tunability of the stimuli-response.
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Affiliation(s)
- Marissa A Morales
- Department of Chemical Engineering, University of New Hampshire, Durham, NH, USA.
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14
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Bravo-Anaya L, Garbay B, Nando-Rodríguez J, Carvajal Ramos F, Ibarboure E, Bathany K, Xia Y, Rosselgong J, Joucla G, Garanger E, Lecommandoux S. Nucleic acids complexation with cationic elastin-like polypeptides: Stoichiometry and stability of nano-assemblies. J Colloid Interface Sci 2019; 557:777-792. [DOI: 10.1016/j.jcis.2019.09.054] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 09/13/2019] [Accepted: 09/16/2019] [Indexed: 02/01/2023]
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15
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Quintanilla-Sierra L, García-Arévalo C, Rodriguez-Cabello J. Self-assembly in elastin-like recombinamers: a mechanism to mimic natural complexity. Mater Today Bio 2019; 2:100007. [PMID: 32159144 PMCID: PMC7061623 DOI: 10.1016/j.mtbio.2019.100007] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 05/10/2019] [Accepted: 05/13/2019] [Indexed: 12/19/2022] Open
Abstract
The topic of self-assembled structures based on elastin-like recombinamers (ELRs, i.e., elastin-like polymers recombinantly bio-produced) has released a noticeable amount of references in the last few years. Most of them are intended for biomedical applications. In this review, a complete revision of the bibliography is carried out. Initially, the self-assembly (SA) concept is considered from a general point of view, and then ELRs are described and characterized based on their intrinsic disorder. A classification of the different self-assembled ELR-based structures is proposed based on their morphologies, paying special attention to their tentative modeling. The impact of the mechanism of SA on these biomaterials is analyzed. Finally, the implications of ELR SA in biological systems are considered.
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Affiliation(s)
| | | | - J.C. Rodriguez-Cabello
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology), CIBER-BBN, University of Valladolid, 47011, Valladolid, Spain
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16
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Lee CH, Ingrole RSJ, Gill HS. Generation of induced pluripotent stem cells using elastin like polypeptides as a non-viral gene delivery system. Biochim Biophys Acta Mol Basis Dis 2019; 1866:165405. [PMID: 30753882 DOI: 10.1016/j.bbadis.2019.01.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/29/2019] [Accepted: 01/31/2019] [Indexed: 02/07/2023]
Abstract
Induced pluripotent stem cells (iPSCs) have been generated from various somatic cells using different approaches; however, a major restriction of reprogramming methods is the use of viral vectors, which have the risk of causing genome-integration of viral DNA. Here, without a viral vector, we generated iPSCs from mouse fibroblasts using an elastin-like polypeptide (ELP)-based transfection method. Our findings support the possible use of ELPs for delivery of the reprogramming genes in to somatic cells for generation of iPSCs. Results of gel retardation assay demonstrated efficient complexation of ELPs with a plasmid containing the four Yamanaka stem cell factors, Oct-4, Klf4, c-myc, and Sox2. After transfection, the iPSCs showed embryonic stem cell-like characteristics, including expression of endogenous pluripotency genes, differentiation into three germ layer lineages, and formation of teratomas in vivo. Our results demonstrate that ELP-based gene delivery may provide a safe method for use in generation of virus-free and exogenous DNA-free iPSCs, which will be crucial for future applications in stem cell-based therapies.
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Affiliation(s)
- Chang Hyun Lee
- Department of Chemical Engineering, Texas Tech University, 8th and Canton, Lubbock, TX 79409, United States
| | - Rohan S J Ingrole
- Department of Chemical Engineering, Texas Tech University, 8th and Canton, Lubbock, TX 79409, United States
| | - Harvinder Singh Gill
- Department of Chemical Engineering, Texas Tech University, 8th and Canton, Lubbock, TX 79409, United States.
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17
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Sorushanova A, Delgado LM, Wu Z, Shologu N, Kshirsagar A, Raghunath R, Mullen AM, Bayon Y, Pandit A, Raghunath M, Zeugolis DI. The Collagen Suprafamily: From Biosynthesis to Advanced Biomaterial Development. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1801651. [PMID: 30126066 DOI: 10.1002/adma.201801651] [Citation(s) in RCA: 448] [Impact Index Per Article: 89.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 06/03/2018] [Indexed: 05/20/2023]
Abstract
Collagen is the oldest and most abundant extracellular matrix protein that has found many applications in food, cosmetic, pharmaceutical, and biomedical industries. First, an overview of the family of collagens and their respective structures, conformation, and biosynthesis is provided. The advances and shortfalls of various collagen preparations (e.g., mammalian/marine extracted collagen, cell-produced collagens, recombinant collagens, and collagen-like peptides) and crosslinking technologies (e.g., chemical, physical, and biological) are then critically discussed. Subsequently, an array of structural, thermal, mechanical, biochemical, and biological assays is examined, which are developed to analyze and characterize collagenous structures. Lastly, a comprehensive review is provided on how advances in engineering, chemistry, and biology have enabled the development of bioactive, 3D structures (e.g., tissue grafts, biomaterials, cell-assembled tissue equivalents) that closely imitate native supramolecular assemblies and have the capacity to deliver in a localized and sustained manner viable cell populations and/or bioactive/therapeutic molecules. Clearly, collagens have a long history in both evolution and biotechnology and continue to offer both challenges and exciting opportunities in regenerative medicine as nature's biomaterial of choice.
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Affiliation(s)
- Anna Sorushanova
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Luis M Delgado
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Zhuning Wu
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Naledi Shologu
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Aniket Kshirsagar
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Rufus Raghunath
- Centre for Cell Biology and Tissue Engineering, Competence Centre Tissue Engineering for Drug Development (TEDD), Department Life Sciences and Facility Management, Institute for Chemistry and Biotechnology (ICBT), Zürich University of Applied Sciences, Wädenswil, Switzerland
| | | | - Yves Bayon
- Sofradim Production-A Medtronic Company, Trevoux, France
| | - Abhay Pandit
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Michael Raghunath
- Centre for Cell Biology and Tissue Engineering, Competence Centre Tissue Engineering for Drug Development (TEDD), Department Life Sciences and Facility Management, Institute for Chemistry and Biotechnology (ICBT), Zürich University of Applied Sciences, Wädenswil, Switzerland
| | - Dimitrios I Zeugolis
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
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18
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Chu G, Shi C, Wang H, Zhang W, Yang H, Li B. Strategies for Annulus Fibrosus Regeneration: From Biological Therapies to Tissue Engineering. Front Bioeng Biotechnol 2018; 6:90. [PMID: 30042942 PMCID: PMC6048238 DOI: 10.3389/fbioe.2018.00090] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 06/18/2018] [Indexed: 12/17/2022] Open
Abstract
Intervertebral disc (IVD) is an avascular tissue which contributes to the weight bearing, motion, and flexibility of spine. However, IVD is susceptible to damage and even failure due to injury, pathology, and aging. Annulus fibrosus (AF), the structural and functional integrity of which is critically essential to confine nucleus pulpous (NP) and maintain physiological intradiscal pressure under mechanical loading, plays a critical role in the biomechanical properties of IVD. AF degeneration commonly results in substantial deterioration of IVD. During this process, the biomechanical properties of AF and the balance between anabolism and catabolism in IVD are progressively disrupted, leading to chronic back pain, and even disability of individuals. Therefore, repairing and regenerating AF are effective treatments to degeneration-associated pains. However, they remain highly challenging due to the complexity of natural AF tissue in the aspects of cell phenotype, biochemical composition, microstructure, and mechanical properties. Tissue engineering (TE), by combining biological science and materials engineering, shed lights on AF regeneration. In this article, we review recent advances in the pro-anabolic approaches in the form of cell delivery, bioactive factors delivery, gene therapy, and TE strategies for achieving AF regeneration.
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Affiliation(s)
- Genglei Chu
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
- Department of Orthopaedic Surgery, First Affiliated Hospital, Soochow University, Suzhou, China
| | - Chen Shi
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Huan Wang
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
- Department of Orthopaedic Surgery, First Affiliated Hospital, Soochow University, Suzhou, China
| | - Weidong Zhang
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
- Department of Orthopaedic Surgery, First Affiliated Hospital, Soochow University, Suzhou, China
| | - Huilin Yang
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
- Department of Orthopaedic Surgery, First Affiliated Hospital, Soochow University, Suzhou, China
| | - Bin Li
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
- Department of Orthopaedic Surgery, First Affiliated Hospital, Soochow University, Suzhou, China
- China Orthopaedic Regenerative Medicine Group, Hangzhou, China
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19
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Larrañaga A, Isa ILM, Patil V, Thamboo S, Lomora M, Fernández-Yague MA, Sarasua JR, Palivan CG, Pandit A. Antioxidant functionalized polymer capsules to prevent oxidative stress. Acta Biomater 2018; 67:21-31. [PMID: 29258803 DOI: 10.1016/j.actbio.2017.12.014] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/18/2017] [Accepted: 12/11/2017] [Indexed: 12/23/2022]
Abstract
Polymeric capsules exhibit significant potential for therapeutic applications as microreactors, where the bio-chemical reactions of interest are efficiently performed in a spatial and time defined manner due to the encapsulation of an active biomolecule (e.g., enzyme) and control over the transfer of reagents and products through the capsular membrane. In this work, catalase loaded polymer capsules functionalized with an external layer of tannic acid (TA) are fabricated via a layer-by-layer approach using calcium carbonate as a sacrificial template. The capsules functionalised with TA exhibit a higher scavenging capacity for hydrogen peroxide and hydroxyl radicals, suggesting that the external layer of TA shows intrinsic antioxidant properties, and represents a valid strategy to increase the overall antioxidant potential of the developed capsules. Additionally, the hydrogen peroxide scavenging capacity of the capsules is enhanced in the presence of the encapsulated catalase. The capsules prevent oxidative stress in an in vitro inflammation model of degenerative disc disease. Moreover, the expression of matrix metalloproteinase-3 (MMP-3), and disintegrin and metalloproteinase with thrombospondin motif-5 (ADAMTS-5), which represents the major proteolytic enzymes in intervertebral disc, are attenuated in the presence of the polymer capsules. This platform technology exhibits potential to reduce oxidative stress, a key modulator in the pathology of a broad range of inflammatory diseases. STATEMENT OF SIGNIFICANCE Oxidative stress damages important cell structures leading to cellular apoptosis and senescence, for numerous disease pathologies including cancer, neurodegeneration or osteoarthritis. Thus, the development of biomaterials-based systems to control oxidative stress has gained an increasing interest. Herein, polymer capsules loaded with catalase and functionalized with an external layer of tannic acid are fabricated, which can efficiently scavenge important reactive oxygen species (i.e., hydroxyl radicals and hydrogen peroxide) and modulate extracellular matrix activity in an in vitro inflammation model of nucleus pulposus. The present work represents accordingly, an important advance in the development and application of polymer capsules with antioxidant properties for the treatment of oxidative stress, which is applicable for multiple inflammatory disease targets.
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Affiliation(s)
- Aitor Larrañaga
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland; Department of Mining-Metallurgy Engineering and Materials Science & POLYMAT, University of the Basque Country, Bilbao, Spain
| | - Isma Liza Mohd Isa
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Vaibhav Patil
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Sagana Thamboo
- Chemistry Department, University of Basel, Basel, Switzerland
| | - Mihai Lomora
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Marc A Fernández-Yague
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Jose-Ramon Sarasua
- Department of Mining-Metallurgy Engineering and Materials Science & POLYMAT, University of the Basque Country, Bilbao, Spain
| | | | - Abhay Pandit
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland.
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20
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Synthetic/ECM-inspired hybrid platform for hollow microcarriers with ROS-triggered nanoporation hallmarks. Sci Rep 2017; 7:13138. [PMID: 29030628 PMCID: PMC5640652 DOI: 10.1038/s41598-017-13744-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 10/02/2017] [Indexed: 02/07/2023] Open
Abstract
Reactive oxygen species (ROS) are key pathological signals expressed in inflammatory diseases such as cancer, ischemic conditions and atherosclerosis. An ideal drug delivery system should not only be responsive to these signals but also should not elicit an unfavourable host response. This study presents an innovative platform for drug delivery where a natural/synthetic composite system composed of collagen type I and a synthesized polythioether, ensures a dual stimuli-responsive behaviour. Collagen type I is an extracellular matrix constituent protein, responsive to matrix metalloproteinases (MMP) cleavage per se. Polythioethers are stable synthetic polymers characterized by the presence of sulphur, which undergoes a ROS-responsive swelling switch. A polythioether was synthesised, functionalized and tested for cytotoxicity. Optimal conditions to fabricate a composite natural/synthetic hollow sphere construct were optimised by a template-based method. Collagen-polythioether hollow spheres were fabricated, revealing uniform size and ROS-triggered nanoporation features. Cellular metabolic activity of H9C2 cardiomyoblasts remained unaffected upon exposure to the spheres. Our natural/synthetic hollow microspheres exhibit the potential for use as a pathological stimuli-responsive reservoir system for applications in inflammatory diseases.
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21
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Jao D, Xue Y, Medina J, Hu X. Protein-Based Drug-Delivery Materials. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E517. [PMID: 28772877 PMCID: PMC5459032 DOI: 10.3390/ma10050517] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 04/18/2017] [Accepted: 05/06/2017] [Indexed: 12/17/2022]
Abstract
There is a pressing need for long-term, controlled drug release for sustained treatment of chronic or persistent medical conditions and diseases. Guided drug delivery is difficult because therapeutic compounds need to survive numerous transport barriers and binding targets throughout the body. Nanoscale protein-based polymers are increasingly used for drug and vaccine delivery to cross these biological barriers and through blood circulation to their molecular site of action. Protein-based polymers compared to synthetic polymers have the advantages of good biocompatibility, biodegradability, environmental sustainability, cost effectiveness and availability. This review addresses the sources of protein-based polymers, compares the similarity and differences, and highlights characteristic properties and functionality of these protein materials for sustained and controlled drug release. Targeted drug delivery using highly functional multicomponent protein composites to guide active drugs to the site of interest will also be discussed. A systematical elucidation of drug-delivery efficiency in the case of molecular weight, particle size, shape, morphology, and porosity of materials will then be demonstrated to achieve increased drug absorption. Finally, several important biomedical applications of protein-based materials with drug-delivery function-including bone healing, antibiotic release, wound healing, and corneal regeneration, as well as diabetes, neuroinflammation and cancer treatments-are summarized at the end of this review.
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Affiliation(s)
- Dave Jao
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA.
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028, USA.
| | - Ye Xue
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA.
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028, USA.
| | - Jethro Medina
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA.
| | - Xiao Hu
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA.
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028, USA.
- Department of Biomedical and Translational Sciences, Rowan University, Glassboro, NJ 08028, USA.
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22
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Riley MK, Vermerris W. Recent Advances in Nanomaterials for Gene Delivery-A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E94. [PMID: 28452950 PMCID: PMC5449975 DOI: 10.3390/nano7050094] [Citation(s) in RCA: 194] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 04/20/2017] [Accepted: 04/24/2017] [Indexed: 01/02/2023]
Abstract
With the rapid development of nanotechnology in the recent decade, novel DNA and RNA delivery systems for gene therapy have become available that can be used instead of viral vectors. These non-viral vectors can be made of a variety of materials, including inorganic nanoparticles, carbon nanotubes, liposomes, protein and peptide-based nanoparticles, as well as nanoscale polymeric materials. They have as advantages over viral vectors a decreased immune response, and additionally offer flexibility in design, allowing them to be functionalized and targeted to specific sites in a biological system with low cytotoxicity. The focus of this review is to provide an overview of novel nanotechnology-based methods to deliver DNA and small interfering RNAs into biological systems.
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Affiliation(s)
- Michael K Riley
- Graduate Program in Plant Cellular and Molecular Biology, University of Florida, Gainesville, FL 32611, USA.
- UF Genetics Institute, University of Florida, Gainesville, FL 32611, USA.
| | - Wilfred Vermerris
- Graduate Program in Plant Cellular and Molecular Biology, University of Florida, Gainesville, FL 32611, USA.
- UF Genetics Institute, University of Florida, Gainesville, FL 32611, USA.
- Department of Microbiology & Cell Science, University of Florida, Cancer/Genetics Research Complex 302, 2033 Mowry Road, Gainesville, FL 32610, USA.
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23
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Bohr A, Boetker J, Wang Y, Jensen H, Rantanen J, Beck-Broichsitter M. High-Throughput Fabrication of Nanocomplexes Using 3D-Printed Micromixers. J Pharm Sci 2016; 106:835-842. [PMID: 27938892 DOI: 10.1016/j.xphs.2016.10.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 09/18/2016] [Accepted: 10/27/2016] [Indexed: 10/20/2022]
Abstract
3D printing allows a rapid and inexpensive manufacturing of custom made and prototype devices. Micromixers are used for rapid and controlled production of nanoparticles intended for therapeutic delivery. In this study, we demonstrate the fabrication of micromixers using computational design and 3D printing, which enable a continuous and industrial scale production of nanocomplexes formed by electrostatic complexation, using the polymers poly(diallyldimethylammonium chloride) and poly(sodium 4-styrenesulfonate). Several parameters including polymer concentration, flow rate, and flow ratio were systematically varied and their effect on the properties of nanocomplexes was studied and compared with nanocomplexes prepared by bulk mixing. Particles fabricated using this cost effective device were equally small and homogenous but more consistent and controllable in size compared with those prepared manually via bulk mixing. Moreover, each micromixer could process more than 2 liters per hour with unaffected performance and the setup could easily be scaled-up by aligning several micromixers in parallel. This demonstrates that 3D printing can be used to prepare disposable high-throughput micromixers for production of therapeutic nanoparticles.
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Affiliation(s)
- Adam Bohr
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Johan Boetker
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Yingya Wang
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Henrik Jensen
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jukka Rantanen
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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24
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Despanie J, Dhandhukia JP, Hamm-Alvarez SF, MacKay JA. Elastin-like polypeptides: Therapeutic applications for an emerging class of nanomedicines. J Control Release 2016; 240:93-108. [PMID: 26578439 PMCID: PMC5767577 DOI: 10.1016/j.jconrel.2015.11.010] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 11/06/2015] [Accepted: 11/09/2015] [Indexed: 02/06/2023]
Abstract
Elastin-like polypeptides (ELPs) constitute a genetically engineered class of 'protein polymers' derived from human tropoelastin. They exhibit a reversible phase separation whereby samples remain soluble below a transition temperature (Tt) but form amorphous coacervates above Tt. Their phase behavior has many possible applications in purification, sensing, activation, and nanoassembly. As humanized polypeptides, they are non-immunogenic, substrates for proteolytic biodegradation, and can be decorated with pharmacologically active peptides, proteins, and small molecules. Recombinant synthesis additionally allows precise control over ELP architecture and molecular weight, resulting in protein polymers with uniform physicochemical properties suited to the design of multifunctional biologics. As such, ELPs have been employed for various uses including as anti-cancer agents, ocular drug delivery vehicles, and protein trafficking modulators. This review aims to offer the reader a catalogue of ELPs, their various applications, and potential for commercialization across a broad spectrum of fields.
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Affiliation(s)
- Jordan Despanie
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90033-9121, USA
| | - Jugal P Dhandhukia
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90033-9121, USA
| | - Sarah F Hamm-Alvarez
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90033-9121, USA; Department of Ophthalmology, University of Southern California, Los Angeles, CA, 90033, USA
| | - J Andrew MacKay
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90033-9121, USA; Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA.
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25
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Jang Y, Champion JA. Self-Assembled Materials Made from Functional Recombinant Proteins. Acc Chem Res 2016; 49:2188-2198. [PMID: 27677734 DOI: 10.1021/acs.accounts.6b00337] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Proteins are potent molecules that can be used as therapeutics, sensors, and biocatalysts with many advantages over small-molecule counterparts due to the specificity of their activity based on their amino acid sequence and folded three-dimensional structure. However, they also have significant limitations in their stability, localization, and recovery when used in soluble form. These opportunities and challenges have motivated the creation of materials from such functional proteins in order to protect and present them in a way that enhances their function. We have designed functional recombinant fusion proteins capable of self-assembling into materials with unique structures that maintain or improve the functionality of the protein. Fusion of either a functional protein or an assembly domain to a leucine zipper domain makes the materials design strategy modular, based on the high affinity between leucine zippers. The self-assembly domains, including elastin-like polypeptides (ELPs) and defined-sequence random coil polypeptides, can be fused with a leucine zipper motif in order to promote assembly of the fusion proteins into larger structures upon specific stimuli such as temperature and ionic strength. Fusion of other functional domains with the counterpart leucine zipper motif endows the self-assembled materials with protein-specific functions such as fluorescence or catalytic activity. In this Account, we describe several examples of materials assembled from functional fusion proteins as well as the structural characterization, functionality, and understanding of the assembly mechanism. The first example is zipper fusion proteins containing ELPs that assemble into particles when introduced to a model extracellular matrix and subsequently disassemble over time to release the functional protein for drug delivery applications. Under different conditions, the same fusion proteins can self-assemble into hollow vesicles. The vesicles display a functional protein on the surface and can also carry protein, small-molecule, or nanoparticle cargo in the vesicle lumen. To create a material with a more complex hierarchical structure, we combined calcium phosphate with zipper fusion proteins containing random coil polypeptides to produce hybrid protein-inorganic supraparticles with high surface area and porous structure. The use of a functional enzyme created supraparticles with the ability to degrade inflammatory cytokines. Our characterization of these protein materials revealed that the molecular interactions are complex because of the large size of the protein building blocks, their folded structures, and the number of potential interactions including hydrophobic interactions, electrostatic interactions, van der Waals forces, and specific affinity-based interactions. It is difficult or even impossible to predict the structures a priori. However, once the basic assembly principles are understood, there is opportunity to tune the material properties, such as size, through control of the self-assembly conditions. Our future efforts on the fundamental side will focus on identifying the phase space of self-assembly of these fusion proteins and additional experimental levers with which to control and tune the resulting materials. On the application side, we are investigating an array of different functional proteins to expand the use of these structures in both therapeutic protein delivery and biocatalysis.
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Affiliation(s)
- Yeongseon Jang
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 950 Atlantic Drive NW, Atlanta, Georgia 30332, United States
| | - Julie A. Champion
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 950 Atlantic Drive NW, Atlanta, Georgia 30332, United States
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26
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Piña MJ, Girotti A, Santos M, Rodríguez-Cabello JC, Arias FJ. Biocompatible ELR-Based Polyplexes Coated with MUC1 Specific Aptamers and Targeted for Breast Cancer Gene Therapy. Mol Pharm 2016; 13:795-808. [PMID: 26815223 DOI: 10.1021/acs.molpharmaceut.5b00712] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The search for new and biocompatible materials with high potential for improvement is a challenge in gene delivery applications. A cell type specific vector made of elastin-like recombinamer (ELR) and aptamers has been specifically designed for the intracellular delivery of therapeutic material for breast cancer therapy. A lysine-enriched ELR was constructed and complexed with plasmid DNA to give positively charged and stable polyplexes. Physical characterization of these polyplexes showed a particle size of around 140 nm and a zeta potential of approximately +40 mV. The incorporation of MUC1-specific aptamers into the polyplexes resulted in a slight decrease in zeta potential but increased cell transfection specificity for MCF-7 breast cancer cells with respect to a MUC1-negative tumor line. After showing the transfection ability of this aptamer-ELR vector which is facilitated mainly by macropinocytosis uptake, we demonstrated its application for suicide gene therapy using a plasmid containing the gene of the toxin PAP-S. The strategy developed in this work about using ELR as polymeric vector and aptamers as supplier of specificity to deliver therapeutic material into MUC1-positive breast cancer cells shows promising potential and continues paving the way for ELRs in the biomedical field.
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Affiliation(s)
- Maria J Piña
- Bioforge Research Group, CIBER-BBN, University of Valladolid , LUCIA, Paseo de Belén 19, 47011 Valladolid, Spain
| | - Alessandra Girotti
- Bioforge Research Group, CIBER-BBN, University of Valladolid , LUCIA, Paseo de Belén 19, 47011 Valladolid, Spain
| | - Mercedes Santos
- Bioforge Research Group, CIBER-BBN, University of Valladolid , LUCIA, Paseo de Belén 19, 47011 Valladolid, Spain
| | - J Carlos Rodríguez-Cabello
- Bioforge Research Group, CIBER-BBN, University of Valladolid , LUCIA, Paseo de Belén 19, 47011 Valladolid, Spain
| | - F Javier Arias
- Bioforge Research Group, CIBER-BBN, University of Valladolid , LUCIA, Paseo de Belén 19, 47011 Valladolid, Spain
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27
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Luo T, Kiick KL. Noncovalent Modulation of the Inverse Temperature Transition and Self-Assembly of Elastin-b-Collagen-like Peptide Bioconjugates. J Am Chem Soc 2015; 137:15362-5. [PMID: 26633746 PMCID: PMC4930074 DOI: 10.1021/jacs.5b09941] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Stimuli-responsive nanostructures produced with peptide domains from the extracellular matrix offer great opportunities for imaging and drug delivery. Although the individual utility of elastin-like (poly)peptides and collagen-like peptides in such applications has been demonstrated, the synergistic advantages of combining these motifs in short peptide conjugates have surprisingly not been reported. Here, we introduce the conjugation of a thermoresponsive elastin-like peptide (ELP) with a triple-helix-forming collagen-like peptide (CLP) to yield ELP-CLP conjugates that show a remarkable reduction in the inverse transition temperature of the ELP domain upon formation of the CLP triple helix. The lower transition temperature of the conjugate enables the facile formation of well-defined vesicles at physiological temperature and the unexpected resolubilization of the vesicles at elevated temperatures upon unfolding of the CLP domain. Given the demonstrated ability of CLPs to modify collagens, our results not only provide a simple and versatile avenue for controlling the inverse transition behavior of ELPs, but also suggest future opportunities for these thermoresponsive nanostructures in biologically relevant environments.
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Affiliation(s)
- Tianzhi Luo
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Kristi L. Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
- Department of Biomedical Engineering, University of Delaware, Newark, Delaware 19716, United States
- Delaware Biotechnology Institute, Newark, Delaware 19711, United States
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28
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Taniguchi S, Watanabe N, Nose T, Maeda I. Development of short and highly potent self-assembling elastin-derived pentapeptide repeats containing aromatic amino acid residues. J Pept Sci 2015; 22:36-42. [PMID: 26662843 DOI: 10.1002/psc.2837] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 10/11/2015] [Accepted: 10/21/2015] [Indexed: 11/07/2022]
Abstract
Tropoelastin is the primary component of elastin, which forms the elastic fibers that make up connective tissues. The hydrophobic domains of tropoelastin are thought to mediate the self-assembly of elastin into fibers, and the temperature-mediated self-assembly (coacervation) of one such repetitive peptide sequence (VPGVG) has been utilized in various bio-applications. To elucidate a mechanism for coacervation activity enhancement and to develop more potent coacervatable elastin-derived peptides, we synthesized two series of peptide analogs containing an aromatic amino acid, Trp or Tyr, in addition to Phe-containing analogs and tested their functional characteristics. Thus, position 1 of the hydrophobic pentapeptide repeat of elastin (X(1)P(2)G(3)V(4)G(5)) was substituted by Trp or Tyr. Eventually, we acquired a novel, short Trp-containing elastin-derived peptide analog (WPGVG)3 with potent coacervation ability. From the results obtained during this process, we determined the importance of aromaticity and hydrophobicity for the coacervation potency of elastin-derived peptide analogs. Generally, however, the production of long-chain synthetic polypeptides in quantities sufficient for commercial use remain cost-prohibitive. Therefore, the identification of (WPGVG)3, which is a 15-mer short peptide consisting simply of five natural amino acids and shows temperature-dependent self-assembly activity, might serve as a foundation for the development of various kinds of biomaterials.
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Affiliation(s)
- Suguru Taniguchi
- Department of Bioscience and Bioinformatics, Kyushu Institute of Technology, Iizuka, Fukuoka, 820-8502, Japan
| | - Noriko Watanabe
- Department of Bioscience and Bioinformatics, Kyushu Institute of Technology, Iizuka, Fukuoka, 820-8502, Japan
| | - Takeru Nose
- Faculty of Arts and Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Iori Maeda
- Department of Bioscience and Bioinformatics, Kyushu Institute of Technology, Iizuka, Fukuoka, 820-8502, Japan
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29
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Yigit S, Dinjaski N, Kaplan DL. Fibrous proteins: At the crossroads of genetic engineering and biotechnological applications. Biotechnol Bioeng 2015; 113:913-29. [PMID: 26332660 DOI: 10.1002/bit.25820] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Revised: 07/27/2015] [Accepted: 08/25/2015] [Indexed: 12/30/2022]
Abstract
Fibrous proteins, such as silk, elastin and collagen are finding broad impact in biomaterial systems for a range of biomedical and industrial applications. Some of the key advantages of biosynthetic fibrous proteins compared to synthetic polymers include the tailorability of sequence, protein size, degradation pattern, and mechanical properties. Recombinant DNA production and precise control over genetic sequence of these proteins allows expansion and fine tuning of material properties to meet the needs for specific applications. We review current approaches in the design, cloning, and expression of fibrous proteins, with a focus on strategies utilized to meet the challenges of repetitive fibrous protein production. We discuss recent advances in understanding the fundamental basis of structure-function relationships and the designs that foster fibrous protein self-assembly towards predictable architectures and properties for a range of applications. We highlight the potential of functionalization through genetic engineering to design fibrous protein systems for biotechnological and biomedical applications.
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Affiliation(s)
- Sezin Yigit
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155.,Department of Chemistry, Tufts University, Somerville, Massachusetts, 02145
| | - Nina Dinjaski
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155.,Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155.
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Dash BC, Thomas D, Monaghan M, Carroll O, Chen X, Woodhouse K, O'Brien T, Pandit A. An injectable elastin-based gene delivery platform for dose-dependent modulation of angiogenesis and inflammation for critical limb ischemia. Biomaterials 2015; 65:126-39. [PMID: 26151745 DOI: 10.1016/j.biomaterials.2015.06.037] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 06/15/2015] [Accepted: 06/18/2015] [Indexed: 11/25/2022]
Abstract
Critical limb ischemia is a major clinical problem. Despite rigorous treatment regimes, there has been only modest success in reducing the rate of amputations in affected patients. Reduced level of blood flow and enhanced inflammation are the two major pathophysiological changes that occur in the ischemic tissue. The objective of this study was to develop a controlled dual gene delivery system capable of delivering therapeutic plasmid eNOS and IL-10 in a temporal manner. In order to deliver multiple therapeutic genes, an elastin-like polypeptide (ELP) based injectable system was designed. The injectable system was comprised of hollow spheres and an in situ-forming gel scaffold of elastin-like polypeptide capable of carrying gene complexes, with an extended manner release profile. In addition, the ELP based injectable system was used to deliver human eNOS and IL-10 therapeutic genes in vivo. A subcutaneous dose response study showed enhanced blood vessel density in the treatment groups of eNOS (20 μg) and IL-10 (10 μg)/eNOS (20 μg) and reduced inflammation with IL-10 (10 μg) alone. Next, we carried out a hind-limb ischemia model comparing the efficacy of the following interventions; Saline; IL-10, eNOS and IL-10/eNOS. The selected dose of eNOS, exhibited enhanced angiogenesis. IL-10 treatment groups showed reduction in the level of inflammatory cells. Furthermore, we demonstrated that eNOS up-regulated major proangiogenic growth factors such as vascular endothelial growth factors, platelet derived growth factor B, and fibroblast growth factor 1, which may explain the mechanism of this approach. These factors help in formation of a stable vascular network. Thus, ELP injectable system mediating non-viral delivery of human IL10-eNOS is a promising therapy towards treating limb ischemia.
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Affiliation(s)
- Biraja C Dash
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510, USA
| | - Dilip Thomas
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland; Regenerative Medicine Institute, National Centre for Biomedical Engineering Science, National University of Ireland, Galway, Ireland
| | - Michael Monaghan
- Department of Cell and Tissue Engineering, Fraunhofer Institute for Interfacial Engineering and Biotechnology (IGB), 70569 Stuttgart, Germany
| | - Oliver Carroll
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Xizhe Chen
- Regenerative Medicine Institute, National Centre for Biomedical Engineering Science, National University of Ireland, Galway, Ireland
| | - Kimberly Woodhouse
- Department of Chemical Engineering, Queen's University, Kingston, ON, Canada
| | - Timothy O'Brien
- Regenerative Medicine Institute, National Centre for Biomedical Engineering Science, National University of Ireland, Galway, Ireland
| | - Abhay Pandit
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland.
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31
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Glucosamine loaded injectable silk-in-silk integrated system modulate mechanical properties in bovine ex-vivo degenerated intervertebral disc model. Biomaterials 2015; 55:64-83. [PMID: 25934453 DOI: 10.1016/j.biomaterials.2015.03.032] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 03/18/2015] [Accepted: 03/20/2015] [Indexed: 01/08/2023]
Abstract
Injectable hydrogels offer a tremendous potential for treatment of degenerated intervertebral disc due to their ability to withstand complex loading, conforming precisely to the defect spaces and eliminating the need for invasive surgical procedures. We have developed an injectable hydrogel platform of N-acetyl-glucosamine (GlcNAc) loaded silk hollow spheres embedded in silk hydrogel for in situ therapeutic release and enhanced mechanical strength. The assembled silk hydrogel provided adequate structural support to the ex vivo degenerated disc model in a cyclic compression test at par with the native tissue. Spatiotemporal release of GlcNAc in a controlled manner from the silk hollow microspheres trigger enhanced proteoglycan production from ADSCs embedded in the composite system. Role of MAPK and SMAD pathways in increasing proteoglycan production have been explored by immunohistological analysis as a result of the action of GlcNAc on the cells, elucidating the potential of injectable silk microsphere-in-silk hydrogel for the regeneration of degenerated disc tissue.
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32
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Sakai D, Grad S. Advancing the cellular and molecular therapy for intervertebral disc disease. Adv Drug Deliv Rev 2015; 84:159-71. [PMID: 24993611 DOI: 10.1016/j.addr.2014.06.009] [Citation(s) in RCA: 199] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 05/07/2014] [Accepted: 06/24/2014] [Indexed: 12/19/2022]
Abstract
The healthy intervertebral disc (IVD) fulfils the essential function of load absorption, while maintaining multi-axial flexibility of the spine. The interrelated tissues of the IVD, the annulus fibrosus, the nucleus pulposus, and the cartilaginous endplate, are characterised by their specific niche, implying avascularity, hypoxia, acidic environment, low nutrition, and low cellularity. Anabolic and catabolic factors balance a slow physiological turnover of extracellular matrix synthesis and breakdown. Deviations in mechanical load, nutrient supply, cellular activity, matrix composition and metabolism may initiate a cascade ultimately leading to tissue dehydration, fibrosis, nerve and vessel ingrowth, disc height loss and disc herniation. Spinal instability, inflammation and neural sensitisation are sources of back pain, a worldwide leading burden that is challenging to cure. In this review, advances in cell and molecular therapy, including mobilisation and activation of endogenous progenitor cells, progenitor cell homing, and targeted delivery of cells, genes, or bioactive factors are discussed.
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Affiliation(s)
- Daisuke Sakai
- Department of Orthopaedic Surgery, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan; Collaborative Research Partner Annulus Fibrosus Repair Program, AO Foundation, Davos, Switzerland.
| | - Sibylle Grad
- AO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos, Switzerland; Collaborative Research Partner Annulus Fibrosus Repair Program, AO Foundation, Davos, Switzerland.
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33
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Piña MJ, Alex SM, Arias FJ, Santos M, Rodriguez-Cabello JC, Ramesan RM, Sharma CP. Elastin-like recombinamers with acquired functionalities for gene-delivery applications. J Biomed Mater Res A 2015; 103:3166-78. [DOI: 10.1002/jbm.a.35455] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 02/26/2015] [Accepted: 03/10/2015] [Indexed: 01/08/2023]
Affiliation(s)
- Maria J. Piña
- Bioforge Research Group, University of Valladolid, CIBER-BBN; Valladolid 47011 Spain
| | - Susan M. Alex
- Biosurface Technology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Poojappura; Thiruvananthapuram Kerala 695 012 India
| | - Francisco J. Arias
- Bioforge Research Group, University of Valladolid, CIBER-BBN; Valladolid 47011 Spain
| | - Mercedes Santos
- Bioforge Research Group, University of Valladolid, CIBER-BBN; Valladolid 47011 Spain
| | | | - Rekha M. Ramesan
- Biosurface Technology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Poojappura; Thiruvananthapuram Kerala 695 012 India
| | - Chandra P. Sharma
- Biosurface Technology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Poojappura; Thiruvananthapuram Kerala 695 012 India
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34
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Samal J, Hoban DB, Naughton C, Concannon R, Dowd E, Pandit A. Fibrin-based microsphere reservoirs for delivery of neurotrophic factors to the brain. Nanomedicine (Lond) 2015; 10:765-83. [DOI: 10.2217/nnm.14.221] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Aim: The in vivo therapeutic potential of neurotrophic factors to modify neuronal dysfunctions is limited by their short half-life. A biomaterials-based intervention, which protects these factors and allows a controlled release, is required. Materials & methods: Hollow fibrin microspheres were fabricated by charge manipulation using polystyrene templates and were loaded with NGF. Bioactivity of released NGF was demonstrated by neuronal outgrowth assay in PC-12 cells followed by in vivo assessment for NGF release and host response. Results: Fibrin-based hollow spheres showed high loading efficiency (>80%). Neurotrophin encapsulation into the microspheres did not alter its bioactivity and controlled release of NGF was observed in the in vivo study. Conclusion: Fibrin hollow microspheres act as a suitable delivery platform for neurotrophic factors with tunable loading efficiency and maintaining their bioactive form after release in vivo.
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Affiliation(s)
- Juhi Samal
- Network of Excellence for Functional Biomaterials
| | - Deirdre B Hoban
- Pharmacology & Therapeutics, National University of Ireland, Galway, Ireland
| | - Carol Naughton
- Pharmacology & Therapeutics, National University of Ireland, Galway, Ireland
| | - Ruth Concannon
- Pharmacology & Therapeutics, National University of Ireland, Galway, Ireland
| | - Eilis Dowd
- Network of Excellence for Functional Biomaterials
- Pharmacology & Therapeutics, National University of Ireland, Galway, Ireland
| | - Abhay Pandit
- Network of Excellence for Functional Biomaterials
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35
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Huber MC, Schreiber A, von Olshausen P, Varga BR, Kretz O, Joch B, Barnert S, Schubert R, Eimer S, Kele P, Schiller SM. Designer amphiphilic proteins as building blocks for the intracellular formation of organelle-like compartments. NATURE MATERIALS 2015; 14:125-32. [PMID: 25362355 DOI: 10.1038/nmat4118] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 09/22/2014] [Indexed: 05/24/2023]
Abstract
Nanoscale biological materials formed by the assembly of defined block-domain proteins control the formation of cellular compartments such as organelles. Here, we introduce an approach to intentionally 'program' the de novo synthesis and self-assembly of genetically encoded amphiphilic proteins to form cellular compartments, or organelles, in Escherichia coli. These proteins serve as building blocks for the formation of artificial compartments in vivo in a similar way to lipid-based organelles. We investigated the formation of these organelles using epifluorescence microscopy, total internal reflection fluorescence microscopy and transmission electron microscopy. The in vivo modification of these protein-based de novo organelles, by means of site-specific incorporation of unnatural amino acids, allows the introduction of artificial chemical functionalities. Co-localization of membrane proteins results in the formation of functionalized artificial organelles combining artificial and natural cellular function. Adding these protein structures to the cellular machinery may have consequences in nanobiotechnology, synthetic biology and materials science, including the constitution of artificial cells and bio-based metamaterials.
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Affiliation(s)
- Matthias C Huber
- 1] Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31 D-79104 Freiburg, Germany [2] Institute for Pharmaceutical Sciences, University of Freiburg, Albertstr. 25 D-79104 Freiburg, Germany [3] Freiburg Institute for Advanced Studies (FRIAS), School of Soft Matter Research, University of Freiburg, Albertstr. 19 D-79104 Freiburg, Germany [4] Faculty of Chemistry and Pharmacy, University of Freiburg, Fahnenbergplatz D-79104 Freiburg, Germany
| | - Andreas Schreiber
- 1] Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31 D-79104 Freiburg, Germany [2] Institute for Pharmaceutical Sciences, University of Freiburg, Albertstr. 25 D-79104 Freiburg, Germany [3] Freiburg Institute for Advanced Studies (FRIAS), School of Soft Matter Research, University of Freiburg, Albertstr. 19 D-79104 Freiburg, Germany [4] Faculty of Biology, University of Freiburg, Schänzlestrasse 1 D-79085 Freiburg, Germany
| | - Philipp von Olshausen
- 1] Bio- and Nano-Photonics, Department of Microsystems Engineering, University of Freiburg, Georges-Köhler-Allee 102 D-79110 Freiburg, Germany [2] BIOSS Centre for Biological Signalling Studies, University of Freiburg, Schänzlestrasse 18 D-79104 Freiburg, Germany
| | - Balázs R Varga
- Chemical Biology Research Group, Hungarian Academy of Sciences, CNS, IOC, Magyar tudósok krt. 2 H-1117 Budapest, Hungary
| | - Oliver Kretz
- BIOSS Centre for Biological Signalling Studies, University of Freiburg, Schänzlestrasse 18 D-79104 Freiburg, Germany
| | - Barbara Joch
- Institute for Neuroanatomy University of Freiburg, Albertstr. 17 D-79104 Freiburg, Germany
| | - Sabine Barnert
- 1] Faculty of Chemistry and Pharmacy, University of Freiburg, Fahnenbergplatz D-79104 Freiburg, Germany [2] Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology and Biopharmacy, University of Freiburg, Hermann-Herder-Str. 9 D-79104 Freiburg, Germany
| | - Rolf Schubert
- 1] Faculty of Chemistry and Pharmacy, University of Freiburg, Fahnenbergplatz D-79104 Freiburg, Germany [2] BIOSS Centre for Biological Signalling Studies, University of Freiburg, Schänzlestrasse 18 D-79104 Freiburg, Germany [3] Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology and Biopharmacy, University of Freiburg, Hermann-Herder-Str. 9 D-79104 Freiburg, Germany
| | - Stefan Eimer
- BIOSS Centre for Biological Signalling Studies, University of Freiburg, Schänzlestrasse 18 D-79104 Freiburg, Germany
| | - Péter Kele
- Chemical Biology Research Group, Hungarian Academy of Sciences, CNS, IOC, Magyar tudósok krt. 2 H-1117 Budapest, Hungary
| | - Stefan M Schiller
- 1] Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31 D-79104 Freiburg, Germany [2] Institute for Pharmaceutical Sciences, University of Freiburg, Albertstr. 25 D-79104 Freiburg, Germany [3] Freiburg Institute for Advanced Studies (FRIAS), School of Soft Matter Research, University of Freiburg, Albertstr. 19 D-79104 Freiburg, Germany [4] Faculty of Chemistry and Pharmacy, University of Freiburg, Fahnenbergplatz D-79104 Freiburg, Germany [5] Faculty of Biology, University of Freiburg, Schänzlestrasse 1 D-79085 Freiburg, Germany [6] BIOSS Centre for Biological Signalling Studies, University of Freiburg, Schänzlestrasse 18 D-79104 Freiburg, Germany [7] IMTEK Department of Microsystems Engineering, University of Freiburg, Georges-Köhler-Allee 103 D-79110 Freiburg, Germany [8] Center for Biosystems Analysis (ZBSA), University of Freiburg, Habsburger Str. 49 D-79104 Freiburg, Germany
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36
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Desai MS, Lee SW. Protein-based functional nanomaterial design for bioengineering applications. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2014; 7:69-97. [DOI: 10.1002/wnan.1303] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 08/12/2014] [Accepted: 09/02/2014] [Indexed: 01/01/2023]
Affiliation(s)
- Malav S. Desai
- Department of Bioengineering; University of California, Berkeley; Berkeley CA USA
- Physical Biosciences Division; Lawrence Berkeley National Laboratory; Berkeley CA USA
| | - Seung-Wuk Lee
- Department of Bioengineering; University of California, Berkeley; Berkeley CA USA
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37
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38
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Fontana G, Srivastava A, Thomas D, Lalor P, Dockery P, Pandit A. Three-Dimensional Microgel Platform for the Production of Cell Factories Tailored for the Nucleus Pulposus. Bioconjug Chem 2014; 26:1297-306. [DOI: 10.1021/bc5004247] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Gianluca Fontana
- Network of Excellence for Functional
Biomaterials and ‡Anatomy, National University of Ireland, Galway, Ireland
| | - Akshay Srivastava
- Network of Excellence for Functional
Biomaterials and ‡Anatomy, National University of Ireland, Galway, Ireland
| | - Dilip Thomas
- Network of Excellence for Functional
Biomaterials and ‡Anatomy, National University of Ireland, Galway, Ireland
| | - Pierce Lalor
- Network of Excellence for Functional
Biomaterials and ‡Anatomy, National University of Ireland, Galway, Ireland
| | - Peter Dockery
- Network of Excellence for Functional
Biomaterials and ‡Anatomy, National University of Ireland, Galway, Ireland
| | - Abhay Pandit
- Network of Excellence for Functional
Biomaterials and ‡Anatomy, National University of Ireland, Galway, Ireland
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39
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Pinedo-Martín G, Santos M, Testera AM, Alonso M, Rodríguez-Cabello JC. The effect of NaCl on the self-assembly of elastin-like block co-recombinamers: Tuning the size of micelles and vesicles. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.08.053] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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40
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Silk fibroin layer-by-layer microcapsules for localized gene delivery. Biomaterials 2014; 35:7929-39. [DOI: 10.1016/j.biomaterials.2014.05.062] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 05/21/2014] [Indexed: 12/23/2022]
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41
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MacEwan SR, Chilkoti A. Applications of elastin-like polypeptides in drug delivery. J Control Release 2014; 190:314-30. [PMID: 24979207 DOI: 10.1016/j.jconrel.2014.06.028] [Citation(s) in RCA: 176] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 06/17/2014] [Accepted: 06/18/2014] [Indexed: 01/08/2023]
Abstract
Elastin-like polypeptides (ELPs) are biopolymers inspired by human elastin. Their lower critical solution temperature phase transition behavior and biocompatibility make them useful materials for stimulus-responsive applications in biological environments. Due to their genetically encoded design and recombinant synthesis, the sequence and size of ELPs can be exactly defined. These design parameters control the structure and function of the ELP with a precision that is unmatched by synthetic polymers. Due to these attributes, ELPs have been used extensively for drug delivery in a variety of different embodiments-as soluble macromolecular carriers, self-assembled nanoparticles, cross-linked microparticles, or thermally coacervated depots. These ELP systems have been used to deliver biologic therapeutics, radionuclides, and small molecule drugs to a variety of anatomical sites for the treatment of diseases including cancer, type 2 diabetes, osteoarthritis, and neuroinflammation.
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Affiliation(s)
- Sarah R MacEwan
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA; Research Triangle MRSEC, Duke University, Durham, NC 27708, USA
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA; Research Triangle MRSEC, Duke University, Durham, NC 27708, USA.
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Ciofani G, Genchi GG, Mattoli V, Mazzolai B, Bandiera A. The potential of recombinant human elastin-like polypeptides for drug delivery. Expert Opin Drug Deliv 2014; 11:1507-12. [PMID: 24909705 DOI: 10.1517/17425247.2014.926885] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Mimicking the structure of natural proteins by recombinant biopolymers is a useful approach for the development of novel bioactive biomaterials with desired properties, that help elucidate molecular interactions in biological systems and elaborate strategies for tissue engineering and drug delivery purposes. Structurally based on elastin repeated motifs, recombinant human elastin-like polypeptides (HELPs) represent excellent examples of bio-inspired polymers proposed for tissue engineering, and recently exploited also for drug delivery applications. This Editorial reports on the latest advances in the research on HELP biopolymers for drug delivery and targeting applications. The main findings will be summarized with emphasis on the 'smart' properties of HELPs, which render this class of biopolymers particularly interesting in the whole biomedicine field. Considerations about further improvements of the current HELP-based systems will be provided, and a demonstration of the huge potential of HELPs in becoming leading material for drug delivery will be attempted.
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Affiliation(s)
- Gianni Ciofani
- Istituto Italiano di Tecnologia, Center for Micro-BioRobotics @SSSA , Viale Rinaldo Piaggio 34, 56025 Pontedera (Pisa) , Italy +39050883019 ; +39050883497 ;
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Costa RR, Girotti A, Santos M, Arias FJ, Mano JF, Rodríguez-Cabello JC. Cellular uptake of multilayered capsules produced with natural and genetically engineered biomimetic macromolecules. Acta Biomater 2014; 10:2653-62. [PMID: 24561713 DOI: 10.1016/j.actbio.2014.02.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Revised: 01/17/2014] [Accepted: 02/12/2014] [Indexed: 02/06/2023]
Abstract
Multilayered microcapsules of chitosan and biomimetic elastin-like recombinamers (ELRs) were prepared envisaging the intracellular delivery of active agents. Two ELRs containing either a bioactive RGD sequence or a scrambled non-functional RDG were used to construct two types of functionalized polymeric microcapsules, both of spherical shape ∼4μm in diameter. Cell viability studies with human mesenchymal stem cells (hMSCs) were performed using microcapsule/cell ratios between 5:1 and 100:1. After 3 and 72h of co-incubation, no signs of cytotoxicity were found, but cells incubated with RGD-functionalized microcapsules exhibited higher viability values than RDG cells. The internalization efficacy and bioavailability of encapsulated DQ-ovalbumin were assessed by monitoring the fluorescence changes in the cargo. The data show that surface functionalization did not significantly influence internalization by hMSCs, but the bioavailability of DQ-ovalbumin degraded faster when encapsulated within RGD-functionalized microcapsules. The microcapsules developed show promise for intracellular drug delivery with increased drug efficacy.
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Delgado LM, Pandit A, Zeugolis DI. Influence of sterilisation methods on collagen-based devices stability and properties. Expert Rev Med Devices 2014; 11:305-14. [PMID: 24654928 DOI: 10.1586/17434440.2014.900436] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Sterilisation is essential for any implantable medical device in order to prevent infection in patients. The selection of the most appropriate sterilisation method depends on the nature and the physical state of the material to be sterilised; the influence of the sterilisation method on the properties of the device; and the type of the potential contaminant. In this context, herein we review the influence of ethylene oxide, γ-irradiation, e-beam irradiation, gas plasma, peracetic acid and ethanol on structural, biomechanical, biochemical and biological properties of collagen-based devices. Data to-date demonstrate that chemical approaches are associated with cytotoxicity, whilst physical methods are associated with degradation, subject to the device physical characteristics. Thus, the sterilisation method of choice is device dependent.
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Affiliation(s)
- Luis M Delgado
- Network of Excellence for Functional Biomaterials (NFB), National University of Ireland Galway (NUI Galway), Galway, Ireland
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TURNER PAULA, JOSHI GAURAVV, WEEKS CANDREW, WILLIAMSON RSCOTT, PUCKETT AAROND, JANORKAR AMOLV. NANO AND MICRO-STRUCTURES OF ELASTIN-LIKE POLYPEPTIDE-BASED MATERIALS AND THEIR APPLICATIONS: RECENT DEVELOPMENTS. ACTA ACUST UNITED AC 2014. [DOI: 10.1142/s1793984413430022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Elastin-like polypeptide (ELP) containing materials have spurred significant research interest for biomedical applications exploiting their biocompatible, biodegradable and nonimmunogenic nature while maintaining precise control over their chemical structure and functionality through genetic engineering. Physical, mechanical and biological properties of ELPs could be further manipulated using genetic engineering or through conjugation with a variety of chemical moieties. These chemical and physical modifications also achieve interesting micro- and nanostructured ELP-based materials. Here, we review the recent developments during the past decade in the methods to engineer elastin-like materials, available genetic and chemical modification methods and applications of ELP micro and nanostructures in tissue engineering and drug delivery.
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Affiliation(s)
- PAUL A. TURNER
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216, USA
| | - GAURAV V. JOSHI
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216, USA
| | - C. ANDREW WEEKS
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216, USA
| | - R. SCOTT WILLIAMSON
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216, USA
| | - AARON D. PUCKETT
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216, USA
| | - AMOL V. JANORKAR
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216, USA
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46
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Browne S, Pandit A. Multi-modal delivery of therapeutics using biomaterial scaffolds. J Mater Chem B 2014; 2:6692-6707. [DOI: 10.1039/c4tb00863d] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Functionalisation of biomaterials with therapeutic moieties (proteins, drugs, genes) is a pre-requisite to tissue regeneration and restoration of function following injury or disease.
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Affiliation(s)
- S. Browne
- Network of Excellence for Functional Biomaterials
- National University of Ireland
- Galway, Ireland
| | - A. Pandit
- Network of Excellence for Functional Biomaterials
- National University of Ireland
- Galway, Ireland
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Ciofani G, Genchi GG, Guardia P, Mazzolai B, Mattoli V, Bandiera A. Recombinant human elastin-like magnetic microparticles for drug delivery and targeting. Macromol Biosci 2013; 14:632-42. [PMID: 24318291 DOI: 10.1002/mabi.201300361] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 11/12/2013] [Indexed: 11/10/2022]
Abstract
Bioinspired recombinant polypeptides represent a highly promising tool in biomedical research, being protein intrinsic constituents of both cells and their natural matrices. In this regard, a very interesting model is represented by polypeptides inspired by elastin, which naturally confers rubber-like elasticity to tissues, and is able to undergo wide deformations without rupture. In this paper, a microparticle system based on a recombinant human elastin-like polypeptide (HELP) is reported for drug delivery applications. HELP microparticles are prepared through a water-in-oil emulsion of an aqueous solution of recombinant polypeptide in isoctane, followed by enzymatic cross-linking. Superparamagnetic iron oxide nanoparticles are introduced in this system with the purpose of conferring magnetic properties to the microspheres, and thus controlling their targeting and tracking as drug vectors. The obtained microparticles are characterized in terms of morphology, structure, magnetic properties, drug release, and magnetic drivability, showing interesting and promising results for further biomedical applications.
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Affiliation(s)
- Gianni Ciofani
- Istituto Italiano di Tecnologia, Center for Micro-BioRobotics @SSSA, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy
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Kraskiewicz H, Breen B, Sargeant T, McMahon S, Pandit A. Assembly of protein-based hollow spheres encapsulating a therapeutic factor. ACS Chem Neurosci 2013; 4:1297-304. [PMID: 23763540 DOI: 10.1021/cn400080h] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Neurotrophins, as important regulators of neural development, function, and survival, have a therapeutic potential to repair damaged neurons. However, a controlled delivery of therapeutic molecules to injured tissue remains one of the greatest challenges facing the translation of novel drug therapeutics field. This study presents the development of an innovative protein-protein delivery technology of nerve growth factor (NGF) by an electrostatically assembled protein-based (collagen) reservoir system that can be directly injected into the injury site and provide long-term release of the therapeutic. A protein-based biomimetic hollow reservoir system was fabricated using a template method. The capability of neurotrophins to localize in these reservoir systems was confirmed by confocal images of fluorescently labeled collagen and NGF. In addition, high loading efficiency of the reservoir system was proven using ELISA. By comparing release profile from microspheres with varying cross-linking, highly cross-linked collagen spheres were chosen as they have the slowest release rate. Finally, biological activity of released NGF was assessed using rat pheochromocytoma (PC12) cell line and primary rat dorsal root ganglion (DRG) cell bioassay where cell treatment with NGF-loaded reservoirs induced significant neuronal outgrowth, similar to that seen in NGF treated controls. Data presented here highlights the potential of a high capacity reservoir-growth factor technology as a promising therapeutic treatment for neuroregenerative applications and other neurodegenerative diseases.
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Affiliation(s)
| | | | - Timothy Sargeant
- Covidien, 60 Middletown Avenue, North Haven, Connecticut 06473, United States
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Patel NU, Purser CA, Baker RC, Janorkar AV. Effect of Processing Temperature on the Morphology and Drug-Release Characteristics of Elastin-Like Polypeptide–Collagen Composite Coatings. Biomacromolecules 2013; 14:2891-9. [DOI: 10.1021/bm4007425] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Neha U. Patel
- Department
of Biomedical Materials Science, School of Dentistry,
and ‡Department of Pharmacology
and Toxicology, School of Medicine, University of Mississippi Medical Center, 2500 North State Street,
Jackson, Mississippi 39216, United States
| | - Christine A. Purser
- Department
of Biomedical Materials Science, School of Dentistry,
and ‡Department of Pharmacology
and Toxicology, School of Medicine, University of Mississippi Medical Center, 2500 North State Street,
Jackson, Mississippi 39216, United States
| | - Rodney C. Baker
- Department
of Biomedical Materials Science, School of Dentistry,
and ‡Department of Pharmacology
and Toxicology, School of Medicine, University of Mississippi Medical Center, 2500 North State Street,
Jackson, Mississippi 39216, United States
| | - Amol V. Janorkar
- Department
of Biomedical Materials Science, School of Dentistry,
and ‡Department of Pharmacology
and Toxicology, School of Medicine, University of Mississippi Medical Center, 2500 North State Street,
Jackson, Mississippi 39216, United States
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