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Mayer K, Ruhoff A, Chan NJ, Waterhouse A, O'Connor AJ, Scheibel T, Heath DE. REDV-Functionalized Recombinant Spider Silk for Next-Generation Coronary Artery Stent Coatings: Hemocompatible, Drug-Eluting, and Endothelial Cell-Specific Materials. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38470984 DOI: 10.1021/acsami.3c17861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Coronary artery stents are life-saving devices, and millions of these devices are implanted annually to treat coronary heart disease. The current gold standard in treatment is drug-eluting stents, which are coated with a biodegradable polymer layer that elutes antiproliferative drugs to prevent restenosis due to neointimal hyperplasia. Stenting is commonly paired with systemic antiplatelet therapy to prevent stent thrombosis. Despite their clinical success, current stents have significant limitations including inducing local inflammation that drives hyperplasia; a lack of hemocompatibility that promotes thrombosis, increasing need for antiplatelet therapy; and limited endothelialization, which is a critical step in the healing process. In this research, we designed a novel material for use as a next-generation coating for drug-eluting stents that addresses the limitations described above. Specifically, we developed a recombinant spider silk material that is functionalized with an REDV cell-adhesive ligand, a peptide motif that promotes specific adhesion of endothelial cells in the cardiovascular environment. We illustrated that this REDV-modified spider silk variant [eADF4(C16)-REDV] is an endothelial-cell-specific material that can promote the formation of a near-confluent endothelium. We additionally performed hemocompatibility assays using human whole blood and demonstrated that spider silk materials exhibit excellent hemocompatibility under both static and flow conditions. Furthermore, we showed that the material displayed slow enzyme-mediated degradation. Finally, we illustrated the ability to load and release the clinically relevant drug everolimus from recombinant spider silk coatings in a quantity and at a rate similar to that of commercial devices. These results support the use of REDV-functionalized recombinant spider silk as a coating for drug-eluting stents.
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Affiliation(s)
- Kai Mayer
- Department of Biomedical Engineering, Graeme Clark Institute, University of Melbourne, Melbourne, VIC 3010, Australia
- Chair for Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof. Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany
| | - Alexander Ruhoff
- Heart Research Institute, The University of Sydney, Newtown, NSW 2042, Australia
| | - Nicholas J Chan
- Department of Biomedical Engineering, Graeme Clark Institute, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Anna Waterhouse
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Andrea J O'Connor
- Department of Biomedical Engineering, Graeme Clark Institute, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Thomas Scheibel
- Chair for Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof. Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany
- Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayreuther Materialzentrum (BayMat), Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayrisches Polymerinstitut (BPI), Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
| | - Daniel E Heath
- Department of Biomedical Engineering, Graeme Clark Institute, University of Melbourne, Melbourne, VIC 3010, Australia
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2
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Fink TD, Funnell JL, Gilbert RJ, Zha RH. One-Pot Assembly of Drug-Eluting Silk Coatings with Applications for Nerve Regeneration. ACS Biomater Sci Eng 2024; 10:482-496. [PMID: 38109315 DOI: 10.1021/acsbiomaterials.3c01042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Clinical use of polymeric scaffolds for tissue engineering often suffers from their inability to promote strong cellular interactions. Functionalization with biomolecules may improve outcomes; however, current functionalization approaches using covalent chemistry or physical adsorption can lead to loss of biomolecule bioactivity. Here, we demonstrate a novel bottom-up approach for enhancing the bioactivity of poly(l-lactic acid) electrospun scaffolds though interfacial coassembly of protein payloads with silk fibroin into nanothin coatings. In our approach, protein payloads are first added into an aqueous solution with Bombyx mori-derived silk fibroin. Phosphate anions are then added to trigger coassembly of the payload and silk fibroin, as well as noncovalent formation of a payload-silk fibroin coating at poly(l-lactic) acid fiber surfaces. Importantly, the coassembly process results in homogeneous distribution of protein payloads, with the loading quantity depending on payload concentration in solution and coating time. This coassembly process yields greater loading capacity than physical adsorption methods, and the payloads can be released over time in physiologically relevant conditions. We also demonstrate that the coating coassembly process can incorporate nerve growth factor and that coassembled coatings lead to significantly more neurite extension than loading via adsorption in a rat dorsal root ganglia explant culture model.
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Affiliation(s)
- Tanner D Fink
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Shirley Ann Jackson, Ph. D. Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
| | - Jessica L Funnell
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180, United States
- Shirley Ann Jackson, Ph. D. Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Ryan J Gilbert
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180, United States
- Shirley Ann Jackson, Ph. D. Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - R Helen Zha
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Shirley Ann Jackson, Ph. D. Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
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3
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Neubauer VJ, Hüter F, Wittmann J, Trossmann VT, Kleinschrodt C, Alber-Laukant B, Rieg F, Scheibel T. Flow Simulation and Gradient Printing of Fluorapatite- and Cell-Loaded Recombinant Spider Silk Hydrogels. Biomolecules 2022; 12:biom12101413. [PMID: 36291622 PMCID: PMC9599405 DOI: 10.3390/biom12101413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 11/16/2022] Open
Abstract
Hierarchical structures are abundant in almost all tissues of the human body. Therefore, it is highly important for tissue engineering approaches to mimic such structures if a gain of function of the new tissue is intended. Here, the hierarchical structures of the so-called enthesis, a gradient tissue located between tendon and bone, were in focus. Bridging the mechanical properties from soft to hard secures a perfect force transmission from the muscle to the skeleton upon locomotion. This study aimed at a novel method of bioprinting to generate gradient biomaterial constructs with a focus on the evaluation of the gradient printing process. First, a numerical approach was used to simulate gradient formation by computational flow as a prerequisite for experimental bioprinting of gradients. Then, hydrogels were printed in a single cartridge printing set-up to transfer the findings to biomedically relevant materials. First, composites of recombinant spider silk hydrogels with fluorapatite rods were used to generate mineralized gradients. Then, fibroblasts were encapsulated in the recombinant spider silk-fluorapatite hydrogels and gradually printed using unloaded spider silk hydrogels as the second component. Thereby, adjustable gradient features were achieved, and multimaterial constructs were generated. The process is suitable for the generation of gradient materials, e.g., for tissue engineering applications such as at the tendon/bone interface.
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Affiliation(s)
- Vanessa J. Neubauer
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany
| | - Florian Hüter
- Lehrstuhl Konstruktionslehre und CAD, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
| | - Johannes Wittmann
- Lehrstuhl Konstruktionslehre und CAD, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
| | - Vanessa T. Trossmann
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany
| | - Claudia Kleinschrodt
- Lehrstuhl Konstruktionslehre und CAD, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
| | - Bettina Alber-Laukant
- Lehrstuhl Konstruktionslehre und CAD, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
| | - Frank Rieg
- Lehrstuhl Konstruktionslehre und CAD, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayreuth Engine Research Center (BERC), Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Zentrum für Energietechnik (ZET), Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
| | - Thomas Scheibel
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany
- Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayerisches Polymerinstitut (BPI), Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayreuther Materialzentrum (BayMAT), Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Correspondence:
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4
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Trossmann VT, Heltmann-Meyer S, Amouei H, Wajant H, Horch RE, Steiner D, Scheibel T. Recombinant Spider Silk Bioinks for Continuous Protein Release by Encapsulated Producer Cells. Biomacromolecules 2022; 23:4427-4437. [PMID: 36067476 DOI: 10.1021/acs.biomac.2c00971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Targeted therapies using biopharmaceuticals are of growing clinical importance in disease treatment. Currently, there are several limitations of protein-based therapeutics (biologicals), including suboptimal biodistribution, lack of stability, and systemic side effects. A promising approach to overcoming these limitations could be a therapeutic cell-loaded 3D construct consisting of a suitable matrix component that harbors producer cells continuously secreting the biological of interest. Here, the recombinant spider silk proteins eADF4(C16), eADF4(C16)-RGD, and eADF4(C16)-RGE have been processed together with HEK293 producer cells stably secreting the highly traceable reporter biological TNFR2-Fc-GpL, a fusion protein consisting of the extracellular domain of TNFR2, the Fc domain of human IgG1, and the luciferase of Gaussia princeps as a reporter domain. eADF4(C16) and eADF4(C16)-RGD hydrogels provide structural and mechanical support, promote HEK293 cell growth, and allow fusion protein production by the latter. Bioink-captured HEK293 producer cells continuously release functional TNFR2-Fc-GpL over 14 days. Thus, the combination of biocompatible, printable spider silk bioinks with drug-producing cells is promising for generating implantable 3D constructs for continuous targeted therapy.
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Affiliation(s)
- Vanessa T Trossmann
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurswissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, Bayreuth 95447, Germany
| | - Stefanie Heltmann-Meyer
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg (FAU), Krankenhaus-Str. 12, Erlangen 91054, Germany
| | - Hanna Amouei
- Division of Molecular Internal Medicine, Department of Internal Medicine II, University Hospital of Würzburg, Grombühl-Str. 12, Würzburg 97080, Germany
| | - Harald Wajant
- Division of Molecular Internal Medicine, Department of Internal Medicine II, University Hospital of Würzburg, Grombühl-Str. 12, Würzburg 97080, Germany
| | - Raymund E Horch
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg (FAU), Krankenhaus-Str. 12, Erlangen 91054, Germany
| | - Dominik Steiner
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg (FAU), Krankenhaus-Str. 12, Erlangen 91054, Germany
| | - Thomas Scheibel
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurswissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Str. 1, Bayreuth 95447, Germany.,Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), Bayerisches Polymerinstitut (BPI), Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), Bayreuther Materialzentrum (BayMAT), Universität Bayreuth, Universitäts-Str. 30, Bayreuth 95447, Germany
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5
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Bittencourt DMDC, Oliveira P, Michalczechen-Lacerda VA, Rosinha GMS, Jones JA, Rech EL. Bioengineering of spider silks for the production of biomedical materials. Front Bioeng Biotechnol 2022; 10:958486. [PMID: 36017345 PMCID: PMC9397580 DOI: 10.3389/fbioe.2022.958486] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/14/2022] [Indexed: 11/13/2022] Open
Abstract
Spider silks are well known for their extraordinary mechanical properties. This characteristic is a result of the interplay of composition, structure and self-assembly of spider silk proteins (spidroins). Advances in synthetic biology have enabled the design and production of spidroins with the aim of biomimicking the structure-property-function relationships of spider silks. Although in nature only fibers are formed from spidroins, in vitro, scientists can explore non-natural morphologies including nanofibrils, particles, capsules, hydrogels, films or foams. The versatility of spidroins, along with their biocompatible and biodegradable nature, also placed them as leading-edge biological macromolecules for improved drug delivery and various biomedical applications. Accordingly, in this review, we highlight the relationship between the molecular structure of spider silk and its mechanical properties and aims to provide a critical summary of recent progress in research employing recombinantly produced bioengineered spidroins for the production of innovative bio-derived structural materials.
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Affiliation(s)
- Daniela Matias de C. Bittencourt
- Embrapa Genetic Resources and Biotechnology, National Institute of Science and Technology—Synthetic Biology, Brasília, DF, Brazil
- *Correspondence: Elibio L. Rech, ; Daniela Matias de C. Bittencourt,
| | - Paula Oliveira
- Department of Biology, Utah State University, Logan, UT, United States
| | | | - Grácia Maria Soares Rosinha
- Embrapa Genetic Resources and Biotechnology, National Institute of Science and Technology—Synthetic Biology, Brasília, DF, Brazil
| | - Justin A. Jones
- Department of Biology, Utah State University, Logan, UT, United States
| | - Elibio L. Rech
- Embrapa Genetic Resources and Biotechnology, National Institute of Science and Technology—Synthetic Biology, Brasília, DF, Brazil
- *Correspondence: Elibio L. Rech, ; Daniela Matias de C. Bittencourt,
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6
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In vitro‐studies of adenosine‐ β‐cyclodextrin inclusion complexes loaded into chitosan, sodium alginate and bentonite‐based nanocomposite optimized by RSM as a sustained release system. J Appl Polym Sci 2022. [DOI: 10.1002/app.52706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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7
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Neubauer VJ, Trossmann VT, Jacobi S, Döbl A, Scheibel T. Recombinant Spider Silk Gels Derived from Aqueous-Organic Solvents as Depots for Drugs. Angew Chem Int Ed Engl 2021; 60:11847-11851. [PMID: 33769676 PMCID: PMC8251796 DOI: 10.1002/anie.202103147] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Indexed: 11/09/2022]
Abstract
Hydrogels are widely used in various biomedical applications, as they cannot only serve as materials for biofabrication but also as depots for the administration of drugs. However, the possibilities of formulation of water-insoluble drugs in hydrogels are rather limited. Herein, we assembled recombinant spider silk gels using a new processing route with aqueous-organic co-solvents, and the properties of these gels could be controlled by the choice of the co-solvent. The presence of the organic co-solvent further enabled the incorporation of hydrophobic drugs as exemplarily shown for 6-mercaptopurine. The developed gels showed shear-thinning behaviour and could be easily injected to serve, for example, as drug depots, and they could even be 3D printed to serve as scaffolds for biofabrication. With this new processing route, the formulation of water-insoluble drugs in spider silk-based depots is possible, circumventing common pharmaceutical solubility issues.
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Affiliation(s)
- Vanessa J. Neubauer
- Lehrstuhl BiomaterialienUniversität BayreuthProf.-Rüdiger-Bormann Strasse 195447BayreuthGermany
| | - Vanessa T. Trossmann
- Lehrstuhl BiomaterialienUniversität BayreuthProf.-Rüdiger-Bormann Strasse 195447BayreuthGermany
| | - Sofia Jacobi
- Lehrstuhl BiomaterialienUniversität BayreuthProf.-Rüdiger-Bormann Strasse 195447BayreuthGermany
| | - Annika Döbl
- Lehrstuhl BiomaterialienUniversität BayreuthProf.-Rüdiger-Bormann Strasse 195447BayreuthGermany
| | - Thomas Scheibel
- Lehrstuhl BiomaterialienUniversität BayreuthProf.-Rüdiger-Bormann Strasse 195447BayreuthGermany
- Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG)Universität BayreuthUniversitätsstrasse 3095440BayreuthGermany
- Bayerisches Polymerinstitut (BPI)Universität BayreuthUniversitätsstrasse 3095440BayreuthGermany
- Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB)Universität BayreuthUniversitätsstrasse 3095440BayreuthGermany
- Bayreuther Materialzentrum (BayMAT)Universität BayreuthUniversitätsstrasse 3095440BayreuthGermany
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8
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Neubauer VJ, Döbl A, Scheibel T. Silk-Based Materials for Hard Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2021; 14:674. [PMID: 33535662 PMCID: PMC7867174 DOI: 10.3390/ma14030674] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/25/2021] [Accepted: 01/26/2021] [Indexed: 02/07/2023]
Abstract
Hard tissues, e.g., bone, are mechanically stiff and, most typically, mineralized. To design scaffolds for hard tissue regeneration, mechanical, physico-chemical and biological cues must align with those found in the natural tissue. Combining these aspects poses challenges for material and construct design. Silk-based materials are promising for bone tissue regeneration as they fulfill several of such necessary requirements, and they are non-toxic and biodegradable. They can be processed into a variety of morphologies such as hydrogels, particles and fibers and can be mineralized. Therefore, silk-based materials are versatile candidates for biomedical applications in the field of hard tissue engineering. This review summarizes silk-based approaches for mineralized tissue replacements, and how to find the balance between sufficient material stiffness upon mineralization and cell survival upon attachment as well as nutrient supply.
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Affiliation(s)
- Vanessa J. Neubauer
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany; (V.J.N.); (A.D.)
| | - Annika Döbl
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany; (V.J.N.); (A.D.)
| | - Thomas Scheibel
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany; (V.J.N.); (A.D.)
- Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayerisches Polymerinstitut (BPI), Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayreuther Materialzentrum (BayMAT), Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
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9
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Zhang X, Xiao Y, Huang Z, Chen J, Cui Y, Niu B, Huang Y, Pan X, Wu C. Smart phase transformation system based on lyotropic liquid crystalline@hard capsules for sustained release of hydrophilic and hydrophobic drugs. Drug Deliv 2020; 27:449-459. [PMID: 32157918 PMCID: PMC7144316 DOI: 10.1080/10717544.2020.1736210] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/18/2020] [Accepted: 02/25/2020] [Indexed: 12/21/2022] Open
Abstract
Smart phase transformation systems@hard capsule (SPTS@hard capsule) based on lyotropic liquid crystalline (LLC) were developed for oral sustained release in this study. Doxycycline hydrochloride (DOXY) and meloxicam (MLX) were used as hydrophilic and hydrophobic model drug, respectively. Two systems were added with different additives, that is, gelucire 39/01, PEG 1000 and Tween 80 to adjust their melting point and release profiles. The phase transformation of these systems could be triggered by water as well as temperature. They could spontaneously transform into cubic phase or hexagonal phase when coming across with water, to achieve the 24 h sustained release profile. In addition, the obtained systems could switch between semisolid state and liquid state when temperature changed within room temperature and body temperature, which facilitated the phase transformation in gastrointestinal tract and during their encapsulation into hard capsules. LLC-based SPTS@hard capsule revealed potential for the industrialization of its oral administration on account of its drugs accommodation with different solubility, controllable release profile and simple preparation process.
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Affiliation(s)
- Xuejuan Zhang
- School of Pharmaceutical Science, Jinan University, Guangzhou, PR China
- School of Pharmaceutical Science, Sun Yat-Sen University, Guangzhou, PR China
- Institute for Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, PR China
| | - Yujun Xiao
- Zhuhai Food and Drug (Medical Equipment) Administration Center for Evaluation and Certification, Zhuhai, PR China
| | - Zhengwei Huang
- School of Pharmaceutical Science, Sun Yat-Sen University, Guangzhou, PR China
| | - Jintian Chen
- School of Pharmaceutical Science, Sun Yat-Sen University, Guangzhou, PR China
| | - Yingtong Cui
- School of Pharmaceutical Science, Sun Yat-Sen University, Guangzhou, PR China
| | - Boyi Niu
- School of Pharmaceutical Science, Sun Yat-Sen University, Guangzhou, PR China
| | - Ying Huang
- School of Pharmaceutical Science, Jinan University, Guangzhou, PR China
- School of Pharmaceutical Science, Sun Yat-Sen University, Guangzhou, PR China
| | - Xin Pan
- School of Pharmaceutical Science, Sun Yat-Sen University, Guangzhou, PR China
| | - Chuanbin Wu
- School of Pharmaceutical Science, Jinan University, Guangzhou, PR China
- School of Pharmaceutical Science, Sun Yat-Sen University, Guangzhou, PR China
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10
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Weiss ACG, Herold HM, Lentz S, Faria M, Besford QA, Ang CS, Caruso F, Scheibel T. Surface Modification of Spider Silk Particles to Direct Biomolecular Corona Formation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:24635-24643. [PMID: 32369330 DOI: 10.1021/acsami.0c06344] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In recent years, spider silk-based materials have attracted attention because of their biocompatibility, processability, and biodegradability. For their potential use in biomaterial applications, i.e., as drug delivery systems and implant coatings for tissue regeneration, it is vital to understand the interactions between the silk biomaterial surface and the biological environment. Like most polymeric carrier systems, spider silk material surfaces can adsorb proteins when in contact with blood, resulting in the formation of a biomolecular corona. Here, we assessed the effect of surface net charge of materials made of recombinant spider silk on the biomolecular corona composition. In-depth proteomic analysis of the biomolecular corona revealed that positively charged spider silk materials surfaces interacted predominantly with fibrinogen-based proteins. This fibrinogen enrichment correlated with blood clotting observed for both positively charged spider silk films and particles. In contrast, negative surface charges prevented blood clotting. Genetic engineering allows the fine-tuning of surface properties of the spider silk particles providing a whole set of recombinant spider silk proteins with different charges or peptide tags to be used for, for example, drug delivery or cell docking, and several of these were analyzed concerning the composition of their biomolecular corona. Taken together this study demonstrates how the surface net charge of recombinant spider silk surfaces affects the composition of the biomolecular corona, which in turn affects macroscopic effects such as fibrin formation and blood clotting.
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Affiliation(s)
- Alessia C G Weiss
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the Department of Chemical Engineering, The University of Melbourne, Victoria 3010, Australia
| | - Heike M Herold
- Lehrstuhl für Biomaterialien, Universität Bayreuth, Prof. Rüdiger-Bormann-Strasse 1, Bayreuth 95447, Germany
| | - Sarah Lentz
- Lehrstuhl für Biomaterialien, Universität Bayreuth, Prof. Rüdiger-Bormann-Strasse 1, Bayreuth 95447, Germany
| | - Matthew Faria
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne, Parkville, Victoria 3052, Australia
- Systems Biology Laboratory, School of Mathematics and Statistics, and the Department of Biomedical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Quinn A Besford
- Leibniz-Institute für Polymerforschung, Hohe Straβe 6, Dresden 01069 , Germany
| | - Ching-Seng Ang
- Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the Department of Chemical Engineering, The University of Melbourne, Victoria 3010, Australia
| | - Thomas Scheibel
- Lehrstuhl für Biomaterialien, Universität Bayreuth, Prof. Rüdiger-Bormann-Strasse 1, Bayreuth 95447, Germany
- Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), Universität Bayreuth, Bayreuth 95440, Germany
- Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), Universität Bayreuth, Bayreuth 95440, Germany
- Bayreuther Materialzentrum (BayMAT), Universität Bayreuth, Bayreuth 95440, Germany
- Bayerisches Polymerinstitut (BPI), Universität Bayreuth, Bayreuth 95440, Germany
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