1
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Ki MR, Kim SH, Rho S, Kim JK, Min KH, Yeo KB, Lee J, Lee G, Jun SH, Pack SP. Use of biosilica to improve loading and delivery of bone morphogenic protein 2. Int J Biol Macromol 2024; 254:127876. [PMID: 37926322 DOI: 10.1016/j.ijbiomac.2023.127876] [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] [Received: 03/01/2023] [Revised: 10/30/2023] [Accepted: 11/01/2023] [Indexed: 11/07/2023]
Abstract
The clinical utility of bone morphogenetic protein 2 (BMP2) is limited because of the poor attraction between BMP2 and carriers, resulting in low loading efficiency and initial burst release. Here, the high binding affinity of BMP2 to the biosilica surface was utilized to overcome this limitation. Atomic force microscopy revealed that BMP2 bound nearly 8- and 2-fold more strongly to biosilica-coated hydroxyapatite than to uncoated and plain silica-coated hydroxyapatite, respectively. To achieve controlled release, collagen was introduced between the silica layers on hydroxyapatite, which was optimized by adjusting the collagen concentration and number of layers. The optimal biosilica/collagen formulation induced sustained BMP2 release without compromising loading efficiency. BMP2 combined with the mentioned formulation led to an increase in osteogenesis, as compared to the combination of BMP2 with either biosilica-coated or non-coated hydroxyapatite in vitro. In rat calvarial defect models, the biosilica/collagen-coated hydroxyapatite with 1 μg BMP2 showed 26 % more bone regeneration than the same dose of BMP2-loaded hydroxyapatite and 10.6 % more than hydroxyapatite with 2.5-fold dose of BMP2. Using BMP2 affinity carriers coated with biosilica/collagen allows for more efficacious in situ loading and delivery of BMP2, making them suitable for the clinical application of growth factors through a soaking method.
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Affiliation(s)
- Mi-Ran Ki
- Department of Biotechnology and Bioinformatics, Sejong 30019, Republic of Korea; Institute of Industrial Technology, Korea University, Sejong 30019, Republic of Korea
| | - Sung Ho Kim
- Department of Biotechnology and Bioinformatics, Sejong 30019, Republic of Korea
| | - Seokbeom Rho
- Department of Biotechnology and Bioinformatics, Sejong 30019, Republic of Korea; Interdisciplinary Graduate Program for Artificial Intelligence Smart Convergence Technology, Sejong 30019, Republic of Korea
| | - Jong Ki Kim
- Department of Biotechnology and Bioinformatics, Sejong 30019, Republic of Korea
| | - Ki Ha Min
- Department of Biotechnology and Bioinformatics, Sejong 30019, Republic of Korea
| | - Ki Baek Yeo
- Department of Oral and Maxillofacial Surgery, Korea University Anam Hospital, Seoul 02841, Republic of Korea
| | - Jaewook Lee
- Department of Oral and Maxillofacial Surgery, Korea University Anam Hospital, Seoul 02841, Republic of Korea
| | - Gyudo Lee
- Department of Biotechnology and Bioinformatics, Sejong 30019, Republic of Korea; Interdisciplinary Graduate Program for Artificial Intelligence Smart Convergence Technology, Sejong 30019, Republic of Korea
| | - Sang-Ho Jun
- Department of Oral and Maxillofacial Surgery, Korea University Anam Hospital, Seoul 02841, Republic of Korea.
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Sejong 30019, Republic of Korea.
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2
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Trossmann VT, Lentz S, Scheibel T. Factors Influencing Properties of Spider Silk Coatings and Their Interactions within a Biological Environment. J Funct Biomater 2023; 14:434. [PMID: 37623678 PMCID: PMC10455157 DOI: 10.3390/jfb14080434] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/10/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023] Open
Abstract
Biomaterials are an indispensable part of biomedical research. However, although many materials display suitable application-specific properties, they provide only poor biocompatibility when implanted into a human/animal body leading to inflammation and rejection reactions. Coatings made of spider silk proteins are promising alternatives for various applications since they are biocompatible, non-toxic and anti-inflammatory. Nevertheless, the biological response toward a spider silk coating cannot be generalized. The properties of spider silk coatings are influenced by many factors, including silk source, solvent, the substrate to be coated, pre- and post-treatments and the processing technique. All these factors consequently affect the biological response of the environment and the putative application of the appropriate silk coating. Here, we summarize recently identified factors to be considered before spider silk processing as well as physicochemical characterization methods. Furthermore, we highlight important results of biological evaluations to emphasize the importance of adjustability and adaption to a specific application. Finally, we provide an experimental matrix of parameters to be considered for a specific application and a guided biological response as exemplarily tested with two different fibroblast cell lines.
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Affiliation(s)
- Vanessa T. Trossmann
- Chair of Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany; (V.T.T.); (S.L.)
| | - Sarah Lentz
- Chair of Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany; (V.T.T.); (S.L.)
| | - Thomas Scheibel
- Chair of Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany; (V.T.T.); (S.L.)
- Bayreuth Center for Colloids and Interfaces (BZKG), University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bavarian Polymer Institute (BPI), University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayreuth Center for Molecular Biosciences (BZMB), University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayreuth Materials Center (BayMAT), University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Faculty of Medicine, University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
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3
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Biomedical applications of solid-binding peptides and proteins. Mater Today Bio 2023; 19:100580. [PMID: 36846310 PMCID: PMC9950531 DOI: 10.1016/j.mtbio.2023.100580] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/06/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
Over the past decades, solid-binding peptides (SBPs) have found multiple applications in materials science. In non-covalent surface modification strategies, solid-binding peptides are a simple and versatile tool for the immobilization of biomolecules on a vast variety of solid surfaces. Especially in physiological environments, SBPs can increase the biocompatibility of hybrid materials and offer tunable properties for the display of biomolecules with minimal impact on their functionality. All these features make SBPs attractive for the manufacturing of bioinspired materials in diagnostic and therapeutic applications. In particular, biomedical applications such as drug delivery, biosensing, and regenerative therapies have benefited from the introduction of SBPs. Here, we review recent literature on the use of solid-binding peptides and solid-binding proteins in biomedical applications. We focus on applications where modulating the interactions between solid materials and biomolecules is crucial. In this review, we describe solid-binding peptides and proteins, providing background on sequence design and binding mechanism. We then discuss their application on materials relevant for biomedicine (calcium phosphates, silicates, ice crystals, metals, plastics, and graphene). Although the limited characterization of SBPs still represents a challenge for their design and widespread application, our review shows that SBP-mediated bioconjugation can be easily introduced into complex designs and on nanomaterials with very different surface chemistries.
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4
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Kim SH, Ki MR, Park KS, Yeo KB, Pack SP. Chimeric protein-mediated dual mineral formation on biopolymer: Non-segregated and well-distributed deposition of CaCO 3 and silica particles. Colloids Surf B Biointerfaces 2022; 219:112808. [PMID: 36108365 DOI: 10.1016/j.colsurfb.2022.112808] [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] [Received: 05/13/2022] [Revised: 08/13/2022] [Accepted: 08/24/2022] [Indexed: 10/31/2022]
Abstract
Incorporation of biogenic or biocompatible synthetic polymers with inorganic mineral components have been suggested for the preparation of more bioactive materials. However, when two different inorganic minerals such as Ca- and Si-based minerals are introduced onto organic polymers, each mineral is deposited in a segregated form. Here, we presented a biomolecule-mediated preparation method for dual mineral-deposited polymer, in which two inorganic minerals were well-deposited on organic polymer with the aid of biological molecules. A chimeric bio-macromolecules, a fusion protein (CA-SFP) of carbonic anhydrase (CA) and silica-forming peptide (SFP), was designed and used. Surface-immobilized CA-SFP enabled the deposition of CaCO3 and silica nanoparticles on biopolymer without any segregated aggregation. SEM, EDS, FTIR, and swelling ratio analysis indicated that in the developed dual mineral-deposited polymer, each mineral was well-distributed across the polymer surfaces. Investigation by MTS assays, fluorescent imaging, and RT-qPCR revealed that the dual mineral-deposited polymer, when used as bone scaffolds, led to better cell proliferation and differentiation without any significant cytotoxicity compared to the counterparts. These results show that our mineral-deposition method mediated by biomolecules not only overcomes mineral-segregation involving multi-mineral formations, but also facilitates the preparation of highly-bioactive composite materials.
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Affiliation(s)
- Sung Ho Kim
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-Ro, Sejong 30019, Republic of Korea
| | - Mi-Ran Ki
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-Ro, Sejong 30019, Republic of Korea; Institute of Industrial Technology, Korea University, 2511 Sejong-Ro, Sejong 30019, Republic of Korea
| | - Ki Sung Park
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-Ro, Sejong 30019, Republic of Korea
| | - Ki Baek Yeo
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-Ro, Sejong 30019, Republic of Korea
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, 2511 Sejong-Ro, Sejong 30019, Republic of Korea.
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5
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Kırpat Konak BM, Bakar ME, Ahan RE, Özyürek EU, Dökmeci S, Şafak Şeker UÖ. A living material platform for the biomineralization of biosilica. Mater Today Bio 2022; 17:100461. [PMID: 36278145 PMCID: PMC9583595 DOI: 10.1016/j.mtbio.2022.100461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/30/2022] [Accepted: 10/08/2022] [Indexed: 11/09/2022] Open
Abstract
Nature has a vast array of biomineralization mechanisms. The commonly shared mechanism by many living organisms to form hardened tissues is the nucleation of mineral structures via proteins. Living materials, thanks to synthetic biology, are providing many opportunities to program cells for many functionalities. Here we have demonstrated a living material system for biosilicification. Silaffins are utilized to synthesize silicified cell walls by one of the most abundant organism groups called diatoms. The R5 peptide motif of the silaffins is known for its ability to precipitate silica in ambient conditions. Therefore, various studies have been conducted to implement the silicification activity of R5 in different application areas, such as regenerative medicine and tissue engineering. However, laborious protein purification steps are required prior to silica nanoparticle production in recombinant approaches. In this study, we aimed to engineer an alternative bacterial platform to achieve silicification using released and bacteria-intact forms of R5-attached fluorescent proteins (FP). Hence, we displayed R5-FP hybrids on the cell surface of E. coli via antigen 43 (Ag43) autotransporter system and managed to demonstrate heat-controllable release from the surface. We also showed that the bacteria cells displaying R5-FP can be used in silicification reactions. Lastly, considering the stimulating effect of silica on osteogenic differentiation, we treated human dental pulp stem cells (hDPSCs) with the silica aggregates formed via R5-FP hybrids. Earlier calcium crystal deposition around the hDPSCs was observed. We envision that our platform can serve as a faster and more economical alternative for biosilicification applications, including endodontics.
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Affiliation(s)
- Büşra Merve Kırpat Konak
- UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, 06800, Turkey
| | - Mehmet Emin Bakar
- UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, 06800, Turkey
| | - Recep Erdem Ahan
- UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, 06800, Turkey
| | - Emel Uzunoğlu Özyürek
- Department of Endodontics, Dental Faculty, Hacettepe University, Ankara, 06100, Turkey
| | - Serap Dökmeci
- Department of Medical Biology, Medical Faculty, Hacettepe University, Ankara, 06100, Turkey
| | - Urartu Özgür Şafak Şeker
- UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, 06800, Turkey,Corresponding author.
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6
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Yi J, Liu Q, Zhang Q, Chew TG, Ouyang H. Modular protein engineering-based biomaterials for skeletal tissue engineering. Biomaterials 2022; 282:121414. [DOI: 10.1016/j.biomaterials.2022.121414] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 04/27/2021] [Accepted: 05/19/2021] [Indexed: 12/24/2022]
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7
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Abdelhamid MAA, Pack SP. Biomimetic and bioinspired silicifications: Recent advances for biomaterial design and applications. Acta Biomater 2021; 120:38-56. [PMID: 32447061 DOI: 10.1016/j.actbio.2020.05.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 05/06/2020] [Accepted: 05/13/2020] [Indexed: 12/12/2022]
Abstract
The rational design and controllable synthesis of functional silica-based materials have gained increased interest in a variety of biomedical and biotechnological applications due to their unique properties. The current review shows that marine organisms, such as siliceous sponges and diatoms, could be the inspiration for the fabrication of advanced biohybrid materials. Several biomolecules were involved in the molecular mechanism of biosilicification in vivo. Mimicking their behavior, functional silica-based biomaterials have been generated via biomimetic and bioinspired silicification in vitro. Additionally, several advanced technologies were developed for in vitro and in vivo immobilization of biomolecules with potential applications in biocatalysis, biosensors, bioimaging, and immunoassays. A thin silica layer could coat a single living cell or virus as a protective shell offering new opportunities in biotechnology and nanomedicine fields. Promising nanotechnologies have been developed for drug encapsulation and delivery in a targeted and controlled manner, in particular for poorly soluble hydrophobic drugs. Moreover, biomimetic silica, as a morphogenetically active biocompatible material, has been utilized in the field of bone regeneration and in the development of biomedical implantable devices. STATEMENT OF SIGNIFICANCE: In nature, silica-based biomaterials, such as diatom frustules and sponge spicules, with high mechanical and physical properties were created under biocompatible conditions. The fundamental knowledge underlying the molecular mechanisms of biosilica formation could inspire engineers and chemists to design novel hybrid biomaterials using molecular biomimetic strategies. The production of such biohybrid materials brings the biosilicification field closer to practical applications. This review starts with the biosilicification process of sponges and diatoms with recently updated researches. Then, this article covers recent advances in the design of silica-based biomaterials and their potential applications in the fields of biotechnology and nanomedicine, highlighting several promising technologies for encapsulation of functional proteins and living cells, drug delivery and the preparation of scaffolds for bone regeneration.
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Affiliation(s)
- Mohamed A A Abdelhamid
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea; Department of Botany and Microbiology, Faculty of Science, Minia University, Minia 61519, Egypt
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, Sejong-Ro 2511, Sejong 30019, Republic of Korea.
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8
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Martín-Moldes Z, López Barreiro D, Buehler MJ, Kaplan DL. Effect of the silica nanoparticle size on the osteoinduction of biomineralized silk-silica nanocomposites. Acta Biomater 2021; 120:203-212. [PMID: 33160114 PMCID: PMC7796966 DOI: 10.1016/j.actbio.2020.10.043] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 09/30/2020] [Accepted: 10/28/2020] [Indexed: 12/20/2022]
Abstract
Understanding the properties and behavior of biomineralized protein-based materials at the organic-inorganic interface is critical to optimize the performance of such materials for biomedical applications. To that end, this work investigates biomineralized protein-based films with applications for bone regeneration. These films were generated using a chimeric protein fusing the consensus repeat derived from the spider Nephila clavipes major ampullate dragline silk with the silica-promoting peptide R5 derived from the Cylindrotheca fusiformis silaffin gene. The effect of pH on the size of silica nanoparticles during their biomineralization on silk films was investigated, as well as the potential impact of nanoparticle size on the differentiation of human mesenchymal stem cells (hMSCs) into osteoblasts. To that end, induction of the integrin αV subunit and the osteogenic markers Runx2 transcription factor and Bone Sialoprotein (BSP) was followed. The results indicated that pH values of 7-8 during biomineralization maximized the coverage of the film surface by silica nanoparticles yielding nanoparticles ranging 200-500 nm and showing enhanced osteoinduction in gene expression analysis. Lower (3-5) or high (10) pH values led to lower biomineralization and poor coverage of the protein surfaces, showing reduced osteoinduction. Molecular dynamics simulations confirmed the activation of the integrin αVβ3 in contact with silica nanoparticles, correlating with the experimental data on the induction of osteogenic markers. This work sheds light on the optimal conditions for the development of fit-for-purpose biomaterial designs for bone regeneration, while the agreement between experimental and computational results shows the potential of computational methods to predict the expression of osteogenic markers for biomaterials. STATEMENT OF SIGNIFICANCE: The ability of biomineralized materials to induce hMSCs differentiation for bone tissue regeneration applications was analyzed. Biomaterials were created using a recombinant protein formed by the consensus repeat derived from the spider Nephila clavipes major ampullate dragline silk and the silica-promoting peptide R5 derived from the Cylindrotheca fusiformis silaffin gene. A combination of computational and experimental techniques revealed the optimal conditions for the synthesis of biomineralized silk-silica films with enhanced expression of markers related to bone regeneration.
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Affiliation(s)
- Zaira Martín-Moldes
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA; Laboratory for Atomistic and Molecular Mechanics (LAMM), Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, 1-290, Cambridge, MA 02139, USA
| | - Diego López Barreiro
- Laboratory for Atomistic and Molecular Mechanics (LAMM), Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, 1-290, Cambridge, MA 02139, USA
| | - Markus J Buehler
- Laboratory for Atomistic and Molecular Mechanics (LAMM), Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, 1-290, Cambridge, MA 02139, USA
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA.
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Kiseleva AP, Krivoshapkin PV, Krivoshapkina EF. Recent Advances in Development of Functional Spider Silk-Based Hybrid Materials. Front Chem 2020; 8:554. [PMID: 32695749 PMCID: PMC7338834 DOI: 10.3389/fchem.2020.00554] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 05/29/2020] [Indexed: 01/10/2023] Open
Abstract
Silkworm silk is mainly known as a luxurious textile. Spider silk is an alternative to silkworm silk fibers and has much more outstanding properties. Silk diversity ensures variation in its application in nature and industry. This review aims to provide a critical summary of up-to-date fabrication methods of spider silk-based organic-inorganic hybrid materials. This paper focuses on the relationship between the molecular structure of spider silk and its mechanical properties. Such knowledge is essential for understanding the innate properties of spider silk as it provides insight into the sophisticated assembly processes of silk proteins into the distinct polymers as a basis for novel products. In this context, we describe the development of spider silk-based hybrids using both natural and bioengineered spider silk proteins blended with inorganic nanoparticles. The following topics are also covered: the diversity of spider silk, its composition and architecture, the differences between silkworm silk and spider silk, and the biosynthesis of natural silk. Referencing biochemical data and processes, this paper outlines the existing challenges and future outcomes.
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Affiliation(s)
| | | | - Elena F. Krivoshapkina
- Laboratory of Solution Chemistry of Advanced Materials and Technologies, ITMO University, St. Petersburg, Russia
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10
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Abstract
Spider web proteins are unique materials created by nature that, considering the combination of their properties, do not have analogues among natural or human-created materials. Obtaining significant amounts of these proteins from natural sources is not feasible. Biotechnological manufacturing in heterological systems is complicated by the very high molecular weight of spidroins and their specific amino acid composition. Obtaining recombinant analogues of spidroins in heterological systems, mainly in bacteria and yeast, has become a compromise solution. Because they can self-assemble, these proteins can form various materials, such as fibers, films, 3D-foams, hydrogels, tubes, and microcapsules. The effectiveness of spidroin hydrogels in deep wound healing, as 3D scaffolds for bone tissue regeneration and as oriented fibers for axon growth and nerve tissue regeneration, was demonstrated in animal models. The possibility to use spidroin micro- and nanoparticles for drug delivery was demonstrated, including the use of modified spidroins for virus-free DNA delivery into animal cell nuclei. In the past few years, significant interest has arisen concerning the use of these materials as biocompatible and biodegradable soft optics to construct photonic crystal super lenses and fiber optics and as soft electronics to use in triboelectric nanogenerators. This review summarizes the latest achievements in the field of spidroin production, the creation of materials based on them, the study of these materials as a scaffold for the growth, proliferation, and differentiation of various types of cells, and the prospects for using these materials for medical applications (e.g., tissue engineering, drug delivery, coating medical devices), soft optics, and electronics. Accumulated data suggest the use of recombinant spidroins in medical practice in the near future.
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Affiliation(s)
- Vladimir G Debabov
- State Research Institute for Genetics and Selection of Industrial Microorganisms of National Research Center "Kurchatov Institute" (NRC "Kurchatov Institute"-GOSNIIGENETIKA), Moscow 117545, Russia
| | - Vladimir G Bogush
- State Research Institute for Genetics and Selection of Industrial Microorganisms of National Research Center "Kurchatov Institute" (NRC "Kurchatov Institute"-GOSNIIGENETIKA), Moscow 117545, Russia
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Zhou H, Jiao G, Dong M, Chi H, Wang H, Wu W, Liu H, Ren S, Kong M, Li C, Zhang L, Chen Y. Orthosilicic Acid Accelerates Bone Formation in Human Osteoblast-Like Cells Through the PI3K-Akt-mTOR Pathway. Biol Trace Elem Res 2019; 190:327-335. [PMID: 30421162 DOI: 10.1007/s12011-018-1574-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 11/07/2018] [Indexed: 12/28/2022]
Abstract
Silicon is one of the essential trace elements in the human body; the deficiency of which may lead to bone diseases. Numerous animal experiments have shown that an appropriate increase in the intake of silicon is beneficial to enhancing bone density and toughness to prevent osteoporosis. However, the molecular mechanisms of the silicon-mediated osteogenesis process have not been sufficiently clarified. In this study, we determined the possible osteogenesis-related mechanisms of orthosilicic acid at a molecular level. We detected the relevant pathway and osteogenic indicators by immunofluorescence (IF), Western blot, alkaline phosphatase (ALP) staining (using 5-bromo-4-chloro-3-indolyl phosphate/nitro blue tetrazolium [BCIP/NBT]), ALP enzyme labeling method, osteocalcin (OCN), and N-terminal propeptide of type 1 procollagen (P1NP) enzyme-linked immunosorbent assay (ELISA). We found that orthosilicic acid is capable of enhancing the expression of phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K), phospho-protein kinase B (P-Akt), phospho-mammalian target of rapamycin (P-mTOR), and related osteogenic markers (runt-related transcription factor 2 [RUNX2], type I collagen [COL1], ALP, OCN, and P1NP). However, with the addition of PI3K-Akt-mTOR pathway-specific inhibitor LY294002, the expression of PI3K, P-Akt, P-mTOR, RUNX2, COL1, ALP, OCN, and P1NP decreased. The results indicated that the PI3K-Akt-mTOR pathway played a positive regulatory role in the process of orthosilicic acid-mediated osteogenesis in vitro.
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Affiliation(s)
- Hongming Zhou
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
- Department of Emergency Trauma Surgery, Linyi Central Hospital, Linyi, Shandong Province, China
| | - Guangjun Jiao
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Meng Dong
- Department of Orthopedics, Zibo Central Hospital, Zibo, Shandong Province, China
| | - Hai Chi
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Hongliang Wang
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Wenliang Wu
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Haichun Liu
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Shanwu Ren
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Meng Kong
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Ci Li
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Lu Zhang
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Yunzhen Chen
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China.
- Department of Orthopedics, Qilu Hospital of Shandong University, No. 107, Wen Hua Xi Road, Ji'nan, 250012, Shandong Province, China.
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12
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Hellner B, Lee SB, Subramaniam A, Subramanian VR, Baneyx F. Modeling the Cooperative Adsorption of Solid-Binding Proteins on Silica: Molecular Insights from Surface Plasmon Resonance Measurements. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:5013-5020. [PMID: 30869906 DOI: 10.1021/acs.langmuir.9b00283] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Combinatorially selected solid-binding peptides (SBPs) provide a versatile route for synthesizing advanced materials and devices, especially when they are installed within structurally or functionally useful protein scaffolds. However, their promise has not been fully realized because we lack a predictive understanding of SBP-material interactions. Thermodynamic and kinetic binding parameters obtained by fitting quartz crystal microbalance and surface plasmon resonance (SPR) data with the Langmuir model whose assumptions are rarely satisfied provide limited information on underpinning molecular interactions. Using SPR, we show here that a technologically useful SBP called Car9 confers proteins to which is fused a sigmoidal adsorption behavior modulated by partner identity, quaternary structure, and ionic strength. We develop a two-step cooperative model that accurately captures the kinetics of silica binding and provides insights into how SBP-SBP interactions, fused scaffold, and solution conditions modulate adsorption. Because cooperative binding can be converted to Langmuir adhesion by mutagenesis, our approach offers a path to identify and to better understand and design practically useful SBPs.
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Affiliation(s)
- Brittney Hellner
- Department of Chemical Engineering , University of Washington , Box 351750 Seattle , 98195 Washington , United States
| | - Seong Beom Lee
- Department of Chemical Engineering , University of Washington , Box 351750 Seattle , 98195 Washington , United States
| | - Akshay Subramaniam
- Department of Chemical Engineering , University of Washington , Box 351750 Seattle , 98195 Washington , United States
| | - Venkat R Subramanian
- Department of Chemical Engineering , University of Washington , Box 351750 Seattle , 98195 Washington , United States
| | - François Baneyx
- Department of Chemical Engineering , University of Washington , Box 351750 Seattle , 98195 Washington , United States
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13
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Mehrotra S, Chouhan D, Konwarh R, Kumar M, Jadi PK, Mandal BB. Comprehensive Review on Silk at Nanoscale for Regenerative Medicine and Allied Applications. ACS Biomater Sci Eng 2019; 5:2054-2078. [PMID: 33405710 DOI: 10.1021/acsbiomaterials.8b01560] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Shreya Mehrotra
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati−781039, Assam, India
| | - Dimple Chouhan
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati−781039, Assam, India
| | - Rocktotpal Konwarh
- Biotechnology Department, Addis Ababa Science and Technology University, Addis Ababa−16417, Ethiopia
| | - Manishekhar Kumar
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati−781039, Assam, India
| | - Praveen Kumar Jadi
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati−781039, Assam, India
| | - Biman B. Mandal
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati−781039, Assam, India
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14
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Nanostructured, Self-Assembled Spider Silk Materials for Biomedical Applications. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1174:187-221. [PMID: 31713200 DOI: 10.1007/978-981-13-9791-2_6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The extraordinary mechanical properties of spider silk fibers result from the interplay of composition, structure and self-assembly of spider silk proteins (spidroins). Genetic approaches enabled the biotechnological production of recombinant spidroins which have been employed to unravel the self-assembly and spinning process. Various processing conditions allowed to explore non-natural morphologies including nanofibrils, particles, capsules, hydrogels, films or foams. Recombinant spider silk proteins and materials made thereof can be utilized for biomedical applications, such as drug delivery, tissue engineering or 3D-biomanufacturing.
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15
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Wang Y, Guo J, Zhou L, Ye C, Omenetto FG, Kaplan DL, Ling S. Design, Fabrication, and Function of Silk-Based Nanomaterials. ADVANCED FUNCTIONAL MATERIALS 2018; 28:1805305. [PMID: 32440262 PMCID: PMC7241600 DOI: 10.1002/adfm.201805305] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Indexed: 05/03/2023]
Abstract
Animal silks are built from pure protein components and their mechanical performance, such as strength and toughness, often exceed most engineered materials. The secret to this success is their unique nanoarchitectures that are formed through the hierarchical self-assembly of silk proteins. This natural material fabrication process in sharp contrast to the production of artificial silk materials, which usually are directly constructed as bulk structures from silk fibroin (SF) molecular. In recent years, with the aim of understanding and building better silk materials, a variety of fabrication strategies have been designed to control nanostructures of silks or to create functional materials from silk nanoscale building blocks. These emerging fabrication strategies offer an opportunity to tailor the structure of SF at the nanoscale and provide a promising route to produce structurally and functionally optimized silk nanomaterials. Here, we review the critical roles of silk nanoarchitectures on property and function of natural silk fibers, outline the strategies of utilization of these silk nanobuilding blocks, and we provide a critical summary of state of the art in the field to create silk nanoarchitectures and to generate silk-based nanocomponents. Further, such insights suggest templates to consider for other materials systems.
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Affiliation(s)
- Yu Wang
- Department of Biomedical Engineering, Tufts University, MA 02155, USA
| | - Jin Guo
- Department of Biomedical Engineering, Tufts University, MA 02155, USA; Department of Chemical and Biological Engineering, Tufts University, MA 02155, USA
| | - Liang Zhou
- Department of Material Science and Engineering, AnHui Agricultural University, Hefei 230036, China
| | - Chao Ye
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | | | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, MA 02155, USA
| | - Shengjie Ling
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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16
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Scholey DV, Belton DJ, Burton EJ, Perry CC. Bioavailability of a novel form of silicon supplement. Sci Rep 2018; 8:17022. [PMID: 30451899 PMCID: PMC6242837 DOI: 10.1038/s41598-018-35292-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 10/30/2018] [Indexed: 11/21/2022] Open
Abstract
In this study, we assessed uptake and potential efficacy of a novel, pH neutral form of silicon supplement in vitro and using broiler chickens as a model species. In vitro bioavailability of this supplement was significantly higher than other commercial supplements tested, all of which claim available silica content. To confirm bioavailability of the new supplement in vivo, a broiler chick feeding trial reported blood uptake that was significantly higher than a Bamboo-derived silicon supplement. We assessed dose response of the novel supplement in a further study with increased dose related levels of silicon being detected in the blood and tibia. We found tibia and foot ash residue as a percentage of dry mass was higher with inclusion of the novel supplement in the diet, particularly in young birds and that this was followed by significant increase in tibia breaking strength. This novel supplement may therefore have applications in the improvement of bone integrity, with implications for the reduction of lameness in broilers. These results indicate the novel silica supplement is readily absorbed in chicks, and transported in the blood supply to sites such as the skeleton due to it being present in a non-condensed, monomeric form. There is potential for wider application of this silica supplement in other species where bone breakages are a problem, including high performance sport.
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Affiliation(s)
- D V Scholey
- School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Brackenhurst Campus, Nottingham, NG25 0QF, UK.
| | - D J Belton
- Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK
| | - E J Burton
- School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Brackenhurst Campus, Nottingham, NG25 0QF, UK
| | - C C Perry
- Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK.
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17
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Limo MJ, Sola-Rabada A, Boix E, Thota V, Westcott ZC, Puddu V, Perry CC. Interactions between Metal Oxides and Biomolecules: from Fundamental Understanding to Applications. Chem Rev 2018; 118:11118-11193. [PMID: 30362737 DOI: 10.1021/acs.chemrev.7b00660] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Metallo-oxide (MO)-based bioinorganic nanocomposites promise unique structures, physicochemical properties, and novel biochemical functionalities, and within the past decade, investment in research on materials such as ZnO, TiO2, SiO2, and GeO2 has significantly increased. Besides traditional approaches, the synthesis, shaping, structural patterning, and postprocessing chemical functionalization of the materials surface is inspired by strategies which mimic processes in nature. Would such materials deliver new technologies? Answering this question requires the merging of historical knowledge and current research from different fields of science. Practically, we need an effective defragmentation of the research area. From our perspective, the superficial accounting of material properties, chemistry of the surfaces, and the behavior of biomolecules next to such surfaces is a problem. This is particularly of concern when we wish to bridge between technologies in vitro and biotechnologies in vivo. Further, besides the potential practical technological efficiency and advantages such materials might exhibit, we have to consider the wider long-term implications of material stability and toxicity. In this contribution, we present a critical review of recent advances in the chemistry and engineering of MO-based biocomposites, highlighting the role of interactions at the interface and the techniques by which these can be studied. At the end of the article, we outline the challenges which hamper progress in research and extrapolate to developing and promising directions including additive manufacturing and synthetic biology that could benefit from molecular level understanding of interactions occurring between inanimate (abiotic) and living (biotic) materials.
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Affiliation(s)
- Marion J Limo
- Interdisciplinary Biomedical Research Centre, School of Science and Technology , Nottingham Trent University , Clifton Lane, Nottingham NG11 8NS , United Kingdom.,Interface and Surface Analysis Centre, School of Pharmacy , University of Nottingham , University Park, Nottingham NG7 2RD , United Kingdom
| | - Anna Sola-Rabada
- Interdisciplinary Biomedical Research Centre, School of Science and Technology , Nottingham Trent University , Clifton Lane, Nottingham NG11 8NS , United Kingdom
| | - Estefania Boix
- Interdisciplinary Biomedical Research Centre, School of Science and Technology , Nottingham Trent University , Clifton Lane, Nottingham NG11 8NS , United Kingdom.,Department of Bioproducts and Biosystems , Aalto University , P.O. Box 16100, FI-00076 Aalto , Finland
| | - Veeranjaneyulu Thota
- Interdisciplinary Biomedical Research Centre, School of Science and Technology , Nottingham Trent University , Clifton Lane, Nottingham NG11 8NS , United Kingdom
| | - Zayd C Westcott
- Interdisciplinary Biomedical Research Centre, School of Science and Technology , Nottingham Trent University , Clifton Lane, Nottingham NG11 8NS , United Kingdom
| | - Valeria Puddu
- Interdisciplinary Biomedical Research Centre, School of Science and Technology , Nottingham Trent University , Clifton Lane, Nottingham NG11 8NS , United Kingdom
| | - Carole C Perry
- Interdisciplinary Biomedical Research Centre, School of Science and Technology , Nottingham Trent University , Clifton Lane, Nottingham NG11 8NS , United Kingdom
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18
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Pereira RFP, Zehbe K, Günter C, dos Santos T, Nunes SC, Paz FAA, Silva MM, Granja PL, Taubert A, de Zea Bermudez V. Ionic Liquid-Assisted Synthesis of Mesoporous Silk Fibroin/Silica Hybrids for Biomedical Applications. ACS OMEGA 2018; 3:10811-10822. [PMID: 30320252 PMCID: PMC6173513 DOI: 10.1021/acsomega.8b02051] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Accepted: 08/24/2018] [Indexed: 06/08/2023]
Abstract
New mesoporous silk fibroin (SF)/silica hybrids were processed via a one-pot soft and energy-efficient sol-gel chemistry and self-assembly from a silica precursor, an acidic or basic catalyst, and the ionic liquid 1-butyl-3-methylimidazolium chloride, acting as both solvent and mesoporosity-inducer. The as-prepared materials were obtained as slightly transparent-opaque, amorphous monoliths, easily transformed into powders, and stable up to ca. 300 °C. Structural data suggest the formation of a hexagonal mesostructure with low range order and apparent surface areas, pore volumes, and pore radii of 205-263 m2 g-1, 0.16-0.19 cm3 g-1, and 1.2-1.6 nm, respectively. In all samples, the dominating conformation of the SF chains is the β-sheet. Cytotoxicity/bioactivity resazurin assays and fluorescence microscopy demonstrate the high viability of MC3T3 pre-osteoblasts to indirect (≥99 ± 9%) and direct (78 ± 2 to 99 ± 13%) contact with the SF/silica materials. Considering their properties and further improvements, these systems are promising candidates to be explored in bone tissue engineering. They also offer excellent prospects as electrolytes for solid-state electrochemical devices, in particular for fuel cells.
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Affiliation(s)
- Rui F. P. Pereira
- Chemistry
Center, University of Minho, 4710-057 Braga, Portugal
- CQ-VR and Chemistry Department, University of Trás-os-Montes
e Alto Douro, 5000-801 Vila Real, Portugal
| | - Kerstin Zehbe
- Institute
of Chemistry, University of Potsdam, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam, Germany
| | - Christina Günter
- Institute
of Chemistry, University of Potsdam, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam, Germany
| | - Tiago dos Santos
- i3S—Instituto de Investigação
e Inovação
em Saúde and INEB—Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal
| | - Sílvia C. Nunes
- Chemistry
Department and CICS—Health Sciences Research Centre, University of Beira Interior, 6201-001 Covilhã, Portugal
| | - Filipe A. Almeida Paz
- Chemistry
Department, University of Aveiro, CICECO-Aveiro
Institute of Materials, 3810-193 Aveiro, Portugal
| | - Maria M. Silva
- Chemistry
Center, University of Minho, 4710-057 Braga, Portugal
| | - Pedro L. Granja
- i3S—Instituto de Investigação
e Inovação
em Saúde and INEB—Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal
- Instituto
de Ciências Biomédicas Abel Salazar, Universidade do Porto, 4200-465 Porto, Portugal
- Faculdade
de Engenharia, Universidade
do Porto, 4200-465 Porto, Portugal
| | - Andreas Taubert
- Institute
of Chemistry, University of Potsdam, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam, Germany
| | - Verónica de Zea Bermudez
- CQ-VR and Chemistry Department, University of Trás-os-Montes
e Alto Douro, 5000-801 Vila Real, Portugal
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19
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Hardy JG, Bertin A, Torres‐Rendon JG, Leal‐Egaña A, Humenik M, Bauer F, Walther A, Cölfen H, Schlaad H, Scheibel TR. Facile Photochemical Modification of Silk Protein–Based Biomaterials. Macromol Biosci 2018; 18:e1800216. [DOI: 10.1002/mabi.201800216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 07/25/2018] [Indexed: 12/24/2022]
Affiliation(s)
- John G. Hardy
- Biomaterials, Faculty of Engineering Science, University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
- Department of ChemistryLancaster University Lancaster LA1 4YB UK
- Materials Science InstituteLancaster University Lancaster LA1 4YB UK
| | - Annabelle Bertin
- German Federal Institute for Materials Research and Testing (BAM) Unter den Eichen 87 12205 Berlin Germany
- Institute of Chemistry and BiochemistryFree University of Berlin Takustraße 3 14195 Berlin Germany
| | | | - Aldo Leal‐Egaña
- Biomaterials, Faculty of Engineering Science, University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
- Institute of BiomaterialsUniversity of Erlangen‐Nuremberg Ulrich‐Schalk‐Straße 3 91056 Erlangen Germany
| | - Martin Humenik
- Biomaterials, Faculty of Engineering Science, University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Felix Bauer
- Biomaterials, Faculty of Engineering Science, University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Andreas Walther
- DWI Leibniz Institute for Interactive Materials Forckenbeckstraße 50 52056 Aachen Germany
- Institute for Macromolecular ChemistryUniversity of Freiburg Stefan‐Meier‐Straße 31 79104 Freiburg Germany
- Freiburg Materials Research CenterUniversity of Freiburg Stefan‐Meier‐Straße 21 79104 Freiburg Germany
- Freiburg Center for Interactive Materials and Bioinspired TechnologiesUniversity of Freiburg Georges‐Köhler‐Allee 105 79110 Freiburg Germany
| | - Helmut Cölfen
- Physical Chemistry GroupDepartment of ChemistryUniversity of Konstanz Universitätsstraße 10 78457 Konstanz Germany
| | - Helmut Schlaad
- Institute of ChemistryUniversity of Potsdam Karl‐Liebknecht‐Straße 24‐25 14476 Potsdam Germany
| | - Thomas R. Scheibel
- Biomaterials, Faculty of Engineering Science, University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
- Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG)Universität Bayreuth Universitätsstraße 30 95440 Bayreuth Germany
- Bayerisches Polymerinstitut (BPI)Universität Bayreuth Universitätsstraße 30 95440 Bayreuth Germany
- Bayreuther Zentrum für Bio‐Makromoleküle (Bio‐Mac)Universität Bayreuth Universitätsstraße 30 95440 Bayreuth Germany
- Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB)Universität Bayreuth Universitätsstraße 30 95440 Bayreuth Germany
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20
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郑 直, 宁 美, 李 东. [Silicification of silk fibroin and their application in bone tissue engineering]. SHENG WU YI XUE GONG CHENG XUE ZA ZHI = JOURNAL OF BIOMEDICAL ENGINEERING = SHENGWU YIXUE GONGCHENGXUE ZAZHI 2018; 35:643-646. [PMID: 30124030 PMCID: PMC9935113 DOI: 10.7507/1001-5515.201705029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Indexed: 11/03/2022]
Abstract
In bone tissue engineering, fabrication of scaffold materials that are biodegradable with regenerative functions is one of the most important research fields. Silk fibroin exhibits many favorable characteristics used as scaffold materials. Among them, hybrid silk fibroin/inorganic composites prepared by biomimetic mineralization have better biocompatibility, biomechanical properties, and biodegradability. At the same time, the hybrid silk fibroin/inorganic materials have much better osteoinduction and conduction properties than silk fibroin. Here, the recent advances in the preparation of silk fibroin/silica hybrid materials by combination or biomimetic silicification are reviewed, and the future research prospects of silicification of silk fibroin are discussed.
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Affiliation(s)
- 直 郑
- 国家卫生计生委科学技术研究所 药物与医用材料研究中心(北京 100081)Drug and Medical Materials Research Center, National Research Institute for Family Planning, Beijing 100081, P.R.China
| | - 美英 宁
- 国家卫生计生委科学技术研究所 药物与医用材料研究中心(北京 100081)Drug and Medical Materials Research Center, National Research Institute for Family Planning, Beijing 100081, P.R.China
| | - 东 李
- 国家卫生计生委科学技术研究所 药物与医用材料研究中心(北京 100081)Drug and Medical Materials Research Center, National Research Institute for Family Planning, Beijing 100081, P.R.China
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21
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Aigner TB, DeSimone E, Scheibel T. Biomedical Applications of Recombinant Silk-Based Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704636. [PMID: 29436028 DOI: 10.1002/adma.201704636] [Citation(s) in RCA: 156] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/26/2017] [Indexed: 05/18/2023]
Abstract
Silk is mostly known as a luxurious textile, which originates from silkworms first cultivated in China. A deeper look into the variety of silk reveals that it can be used for much more, in nature and by humanity. For medical purposes, natural silks were recognized early as a potential biomaterial for surgical threads or wound dressings; however, as biomedical engineering advances, the demand for high-performance, naturally derived biomaterials becomes more pressing and stringent. A common problem of natural materials is their large batch-to-batch variation, the quantity available, their potentially high immunogenicity, and their fast biodegradation. Some of these common problems also apply to silk; therefore, recombinant approaches for producing silk proteins have been developed. There are several research groups which study and utilize various recombinantly produced silk proteins, and many of these have also investigated their products for biomedical applications. This review gives a critical overview over of the results for applications of recombinant silk proteins in biomedical engineering.
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Affiliation(s)
| | - Elise DeSimone
- University Bayreuth, Lehrstuhl Biomaterialien, Universitätsstr. 30, 95447, Bayreuth, Germany
| | - Thomas Scheibel
- Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), Bayreuther Zentrum für Bio-Makromoleküle (bio-mac), Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), Bayreuther Materialzentrum (BayMAT), Bayerisches Polymerinstitut (BPI), University Bayreuth, Universitätsstr. 30, 95447, Bayreuth, Germany
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22
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Humenik M, Lang G, Scheibel T. Silk nanofibril self-assembly versus electrospinning. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2018; 10:e1509. [PMID: 29393590 DOI: 10.1002/wnan.1509] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 10/18/2017] [Accepted: 12/19/2017] [Indexed: 01/16/2023]
Abstract
Natural silk fibers represent one of the most advanced blueprints for (bio)polymer scientists, displaying highly optimized mechanical properties due to their hierarchical structures. Biotechnological production of silk proteins and implementation of advanced processing methods enabled harnessing the potential of these biopolymer not just based on the mechanical properties. In addition to fibers, diverse morphologies can be produced, such as nonwoven meshes, films, hydrogels, foams, capsules and particles. Among them, nanoscale fibrils and fibers are particularly interesting concerning medical and technical applications due to their biocompatibility, environmental and mechanical robustness as well as high surface-to-volume ratio. Therefore, we introduce here self-assembly of silk proteins into hierarchically organized structures such as supramolecular nanofibrils and fabricated materials based thereon. As an alternative to self-assembly, we also present electrospinning a technique to produce nanofibers and nanofibrous mats. Accordingly, we introduce a broad range of silk-based dopes, used in self-assembly and electrospinning: natural silk proteins originating from natural spinning glands, natural silk protein solutions reconstituted from fibers, engineered recombinant silk proteins designed from natural blueprints, genetic fusions of recombinant silk proteins with other structural or functional peptides and moieties, as well as hybrids of recombinant silk proteins chemically conjugated with nonproteinaceous biotic or abiotic molecules. We highlight the advantages but also point out drawbacks of each particular production route. The scope includes studies of the natural self-assembly mechanism during natural silk spinning, production of silk fibrils as new nanostructured non-native scaffolds allowing dynamic morphological switches, as well as studying potential applications. This article is categorized under: Biology-Inspired Nanomaterials > Peptide-Based Structures Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Biology-Inspired Nanomaterials > Protein and Virus-Based Structures.
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Affiliation(s)
- Martin Humenik
- Biomaterials, Faculty of Engineering Science, University of Bayreuth, Bayreuth, Germany
| | - Gregor Lang
- Biomaterials, Faculty of Engineering Science, University of Bayreuth, Bayreuth, Germany
| | - Thomas Scheibel
- Biomaterials, Faculty of Engineering Science, University of Bayreuth, Bayreuth, Germany.,Bayreuth Center for Colloids and Interfaces (BZKG), Research Center Bio-Macromolecules (BIOmac), Bayreuth Center for Molecular Biosciences (BZMB), Bayreuth Center for Material Science (BayMAT), Bavarian Polymer Institute (BPI), Universität Bayreuth, Bayreuth, Germany
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23
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Deptuch T, Dams-Kozlowska H. Silk Materials Functionalized via Genetic Engineering for Biomedical Applications. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E1417. [PMID: 29231863 PMCID: PMC5744352 DOI: 10.3390/ma10121417] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 12/04/2017] [Accepted: 12/06/2017] [Indexed: 12/21/2022]
Abstract
The great mechanical properties, biocompatibility and biodegradability of silk-based materials make them applicable to the biomedical field. Genetic engineering enables the construction of synthetic equivalents of natural silks. Knowledge about the relationship between the structure and function of silk proteins enables the design of bioengineered silks that can serve as the foundation of new biomaterials. Furthermore, in order to better address the needs of modern biomedicine, genetic engineering can be used to obtain silk-based materials with new functionalities. Sequences encoding new peptides or domains can be added to the sequences encoding the silk proteins. The expression of one cDNA fragment indicates that each silk molecule is related to a functional fragment. This review summarizes the proposed genetic functionalization of silk-based materials that can be potentially useful for biomedical applications.
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Affiliation(s)
- Tomasz Deptuch
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61-688 Poznan, Poland.
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-688 Poznan, Poland.
| | - Hanna Dams-Kozlowska
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61-688 Poznan, Poland.
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-688 Poznan, Poland.
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24
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Bhattacharjee P, Kundu B, Naskar D, Kim HW, Maiti TK, Bhattacharya D, Kundu SC. Silk scaffolds in bone tissue engineering: An overview. Acta Biomater 2017; 63:1-17. [PMID: 28941652 DOI: 10.1016/j.actbio.2017.09.027] [Citation(s) in RCA: 173] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 08/26/2017] [Accepted: 09/19/2017] [Indexed: 12/17/2022]
Abstract
Bone tissue plays multiple roles in our day-to-day functionality. The frequency of accidental bone damage and disorder is increasing worldwide. Moreover, as the world population continues to grow, the percentage of the elderly population continues to grow, which results in an increased number of bone degenerative diseases. This increased elderly population pushes the need for artificial bone implants that specifically employ biocompatible materials. A vast body of literature is available on the use of silk in bone tissue engineering. The current work presents an overview of this literature from materials and fabrication perspective. As silk is an easy-to-process biopolymer; this allows silk-based biomaterials to be molded into diverse forms and architectures, which further affects the degradability. This makes silk-based scaffolds suitable for treating a variety of bone reconstruction and regeneration objectives. Silk surfaces offer active sites that aid the mineralization and/or bonding of bioactive molecules that facilitate bone regeneration. Silk has also been blended with a variety of polymers and minerals to enhance its advantageous properties or introduce new ones. Several successful works, both in vitro and in vivo, have been reported using silk-based scaffolds to regenerate bone tissues or other parts of the skeletal system such as cartilage and ligament. A growing trend is observed toward the use of mineralized and nanofibrous scaffolds along with the development of technology that allows to control scaffold architecture, its biodegradability and the sustained releasing property of scaffolds. Further development of silk-based scaffolds for bone tissue engineering, taking them up to and beyond the stage of human trials, is hoped to be achieved in the near future through a cross-disciplinary coalition of tissue engineers, material scientists and manufacturing engineers. STATEMENT OF SIGNIFICANCE The state-of-art of silk biomaterials in bone tissue engineering, covering their wide applications as cell scaffolding matrices to micro-nano carriers for delivering bone growth factors and therapeutic molecules to diseased or damaged sites to facilitate bone regeneration, is emphasized here. The review rationalizes that the choice of silk protein as a biomaterial is not only because of its natural polymeric nature, mechanical robustness, flexibility and wide range of cell compatibility but also because of its ability to template the growth of hydroxyapatite, the chief inorganic component of bone mineral matrix, resulting in improved osteointegration. The discussion extends to the role of inorganic ions such as Si and Ca as matrix components in combination with silk to influence bone regrowth. The effect of ions or growth factor-loaded vehicle incorporation into regenerative matrix, nanotopography is also considered.
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25
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Guo J, Li C, Ling S, Huang W, Chen Y, Kaplan DL. Multiscale design and synthesis of biomimetic gradient protein/biosilica composites for interfacial tissue engineering. Biomaterials 2017; 145:44-55. [PMID: 28843732 PMCID: PMC5610098 DOI: 10.1016/j.biomaterials.2017.08.025] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 07/16/2017] [Accepted: 08/14/2017] [Indexed: 01/13/2023]
Abstract
Continuous gradients present at tissue interfaces such as osteochondral systems, reflect complex tissue functions and involve changes in extracellular matrix compositions, cell types and mechanical properties. New and versatile biomaterial strategies are needed to create suitable biomimetic engineered grafts for interfacial tissue engineering. Silk protein-based composites, coupled with selective peptides with mineralization domains, were utilized to mimic the soft-to-hard transition in osteochondral interfaces. The gradient composites supported tunable mineralization and mechanical properties corresponding to the spatial concentration gradient of the mineralization domains (R5 peptide). The composite system exhibited continuous transitions in terms of composition, structure and mechanical properties, as well as cytocompatibility and biodegradability. The gradient silicified silk/R5 composites promoted and regulated osteogenic differentiation of human mesenchymal stem cells in an osteoinductive environment in vitro. The cells differentiated along the composites in a manner consistent with the R5-gradient profile. This novel biomimetic gradient biomaterial design offers a useful approach to meet a broad range of needs in regenerative medicine.
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Affiliation(s)
- Jin Guo
- Department of Chemical and Biological Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA; Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Chunmei Li
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Shengjie Ling
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA; Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Wenwen Huang
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Ying Chen
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA.
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Sutherland TD, Huson MG, Rapson TD. Rational design of new materials using recombinant structural proteins: Current state and future challenges. J Struct Biol 2017; 201:76-83. [PMID: 29097186 DOI: 10.1016/j.jsb.2017.10.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/26/2017] [Accepted: 10/28/2017] [Indexed: 11/27/2022]
Abstract
Sequence-definable polymers are seen as a prerequisite for design of future materials, with many polymer scientists regarding such polymers as the holy grail of polymer science. Recombinant proteins are sequence-defined polymers. Proteins are dictated by DNA templates and therefore the sequence of amino acids in a protein is defined, and molecular biology provides tools that allow redesign of the DNA as required. Despite this advantage, proteins are underrepresented in materials science. In this publication we investigate the advantages and limitations of using proteins as templates for rational design of new materials.
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Affiliation(s)
| | - Mickey G Huson
- CSIRO, Black Mountain, GPO Box 1700, Acton, ACT 2601, Australia
| | - Trevor D Rapson
- CSIRO, Black Mountain, GPO Box 1700, Acton, ACT 2601, Australia
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Walsh TR, Knecht MR. Biointerface Structural Effects on the Properties and Applications of Bioinspired Peptide-Based Nanomaterials. Chem Rev 2017; 117:12641-12704. [DOI: 10.1021/acs.chemrev.7b00139] [Citation(s) in RCA: 132] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Tiffany R. Walsh
- Institute
for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia
| | - Marc R. Knecht
- Department
of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
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Lutz H, Jaeger V, Schmüser L, Bonn M, Pfaendtner J, Weidner T. The Structure of the Diatom Silaffin Peptide R5 within Freestanding Two-Dimensional Biosilica Sheets. Angew Chem Int Ed Engl 2017; 56:8277-8280. [DOI: 10.1002/anie.201702707] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Helmut Lutz
- Department of Molecular Spectroscopy; Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Vance Jaeger
- Department of Chemical Engineering; University of Washington; 105 Benson Hall Seattle WA 98195-1750 USA
| | - Lars Schmüser
- Department of Molecular Spectroscopy; Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Mischa Bonn
- Department of Molecular Spectroscopy; Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Jim Pfaendtner
- Department of Chemical Engineering; University of Washington; 105 Benson Hall Seattle WA 98195-1750 USA
| | - Tobias Weidner
- Department of Molecular Spectroscopy; Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
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Lutz H, Jaeger V, Schmüser L, Bonn M, Pfaendtner J, Weidner T. Die Struktur des Silaffin-Peptids R5 aus Diatomeen in freistehenden zweidimensionalen Biosilikatwänden. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Helmut Lutz
- Arbeitskreis Molekulare Spektroskopie; Max-Planck-Institut für Polymerforschung; Ackermannweg 10 55128 Mainz Deutschland
| | - Vance Jaeger
- Department of Chemical Engineering; University of Washington; 105 Benson Hall Seattle WA 98195-1750 USA
| | - Lars Schmüser
- Arbeitskreis Molekulare Spektroskopie; Max-Planck-Institut für Polymerforschung; Ackermannweg 10 55128 Mainz Deutschland
| | - Mischa Bonn
- Arbeitskreis Molekulare Spektroskopie; Max-Planck-Institut für Polymerforschung; Ackermannweg 10 55128 Mainz Deutschland
| | - Jim Pfaendtner
- Department of Chemical Engineering; University of Washington; 105 Benson Hall Seattle WA 98195-1750 USA
| | - Tobias Weidner
- Arbeitskreis Molekulare Spektroskopie; Max-Planck-Institut für Polymerforschung; Ackermannweg 10 55128 Mainz Deutschland
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Dänemark
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30
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Sutherland TD, Rapson TD, Huson MG, Church JS. Recombinant Structural Proteins and Their Use in Future Materials. Subcell Biochem 2017; 82:491-526. [PMID: 28101871 DOI: 10.1007/978-3-319-49674-0_15] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Recombinant proteins are polymers that offer the materials engineer absolute control over chain length and composition: key attributes required for design of advanced polymeric materials. Through this control, these polymers can be encoded to contain information that enables them to respond as the environment changes. However, despite their promise, protein-based materials are under-represented in materials science. In this chapter we investigate why this is and describe recent efforts to address this. We discuss constraints limiting rational design of structural proteins for advanced materials; advantages and disadvantages of different recombinant expression platforms; and, methods to fabricate proteins into solid-state materials. Finally, we describe the silk proteins used in our laboratory as templates for information-containing polymers.
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31
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Ravera E, Martelli T, Geiger Y, Fragai M, Goobes G, Luchinat C. Biosilica and bioinspired silica studied by solid-state NMR. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.06.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Wibowo D, Yang GZ, Middelberg APJ, Zhao CX. Non-chromatographic bioprocess engineering of a recombinant mineralizing protein for the synthesis of silica nanocapsules. Biotechnol Bioeng 2016; 114:335-343. [PMID: 27543861 DOI: 10.1002/bit.26079] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 07/19/2016] [Accepted: 08/17/2016] [Indexed: 11/06/2022]
Abstract
Inspired by nature, synthetic mineralizing proteins have been developed to synthesize various structures of silica-based nanomaterials under environmentally friendly conditions. However, the development of bioprocesses able to assist in the translation of these new materials has lagged the development of the materials themselves. The development of cost-effective and scalable bioprocesses which minimize reliance on chromatography to recover biomolecules from microbial cell factories remains a significant challenge. This paper reports a simplified purification process for a recently reported recombinant catalytic modular (D4S2) protein (M(DPSMKQLADS-LHQLARQ-VSRLEHA)4 EPSRKKRKKRKKRKKGGGY; M 13.3 kDa; pI 10.9), which combines a variant of the established designer biosurfactant protein DAMP4 with a new biomimetic sequence (RKKRKKRKKRKKGGGY), providing for a bi-modular functionality (emulsification and biosilicification). The four-helix bundle structure of the protein has been demonstrated to remain stable and soluble under high temperature and high salt conditions, which confers simplified bioprocessing character. However, the high positive charge on the biosilification sequence necessitates removal of DNA contaminants from crude cell-extract at an early stage in the process by adding poly(ethyleneimine) (PEI). In this process, cellular protein contaminants were selectively precipitated by adding Na2 SO4 to the protein mixture up to a high concentration (1 M) and mixed at high temperature (90°C, 5 min) where D4S2 remained stable and soluble due to its four-helix bundle structure. Further increase of the Na2 SO4 concentration to 1.8 M precipitated, thus separated, D4S2 from residual PEI. The overall yield of the protein D4S2 was 28.8 mg per 800 mL cells (final cultivation OD600 ∼2) which gives an approximate 79% D4S2-protein yield. In comparison with the previously reported chromatographic purification of D4S2 protein (Wibowo et al., 2015), the final yield of D4S2 protein is increased fourfold in this study. The bio-produced protein D4S2 was proved to retain it emulsification and biosilicification functionalities enabling the formation of oil-core silica-shell nanocapsules at near-neutral pH and room temperature without the use of any toxic organic solvents, confirming no adverse effects due to bioprocess simplification. This work demonstrates that, through proper bioprocess engineering including the removal of critical contaminants such as DNA, a more efficient, simple, and scalable purification process can be used for the high-yield bio-production of a recombinant templating protein useful in the synthesis of bio-inspired nanomaterials. This simplified process is expected to be easily adapted to recover other mineralizing helix bundle-based functional proteins from microbial cell factories. Biotechnol. Bioeng. 2017;114: 335-343. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- David Wibowo
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Guang-Ze Yang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Anton P J Middelberg
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Chun-Xia Zhao
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
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33
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Dinjaski N, Ebrahimi D, Ling S, Shah S, Buehler MJ, Kaplan DL. Integrated Modeling and Experimental Approaches to Control Silica Modification of Design Silk-Based Biomaterials. ACS Biomater Sci Eng 2016; 3:2877-2888. [PMID: 33418709 DOI: 10.1021/acsbiomaterials.6b00236] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mineralized polymeric biomaterials provide useful options toward mechanically robust systems for some tissue repairs. Silks as a mechanically robust protein-based material provide a starting point for biomaterial options, particularly when combined with silica toward organic-inorganic hybrid systems. To further understand the interplay between silk proteins and silica related to material properties, we systematically study the role of three key domains in bioengineered spider silk fusion proteins with respect to β-sheet formation and mineralization: (i) a core silk domain for materials assembly, (ii) a histidine tag for purification, and (iii) a silicification domain for mineralization. Computational simulations are used to identify the effect of each domain on the protein folding and accessibility of positively charged amino acids for silicification and predictions are then compared with experimental data. The results show that the addition of the silica and histidine domains reduces β-sheet structure in the materials, and increases solvent-accessible surface area to the positive charged amino acids, leading to higher levels of silica precipitation. Moreover, the simulations show that the location of the charged biomineralization domain has small effect on the protein folding and consequently surface exposure of charged amino acids. Those surfaces display correlation with the amount of silicification in experiments. The results demonstrate that the exposure of the positively charged amino acids impacts protein function related to mineralization. In addition, processing parameters (solvating agent, the method of β-sheet induction and temperature) affect protein secondary structure, folding and function. This integrated modeling and experimental approach provides insight into sequence-structure-function relationships for control of mineralized protein biomaterial structures.
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Affiliation(s)
- Nina Dinjaski
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States.,Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Davoud Ebrahimi
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Shengjie Ling
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States.,Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Suraj Shah
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Markus J Buehler
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
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34
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Hardy JG, Torres-Rendon JG, Leal-Egaña A, Walther A, Schlaad H, Cölfen H, Scheibel TR. Biomineralization of Engineered Spider Silk Protein-Based Composite Materials for Bone Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2016; 9:E560. [PMID: 28773681 PMCID: PMC5456849 DOI: 10.3390/ma9070560] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 06/06/2016] [Accepted: 06/24/2016] [Indexed: 01/26/2023]
Abstract
Materials based on biodegradable polyesters, such as poly(butylene terephthalate) (PBT) or poly(butylene terephthalate-co-poly(alkylene glycol) terephthalate) (PBTAT), have potential application as pro-regenerative scaffolds for bone tissue engineering. Herein, the preparation of films composed of PBT or PBTAT and an engineered spider silk protein, (eADF4(C16)), that displays multiple carboxylic acid moieties capable of binding calcium ions and facilitating their biomineralization with calcium carbonate or calcium phosphate is reported. Human mesenchymal stem cells cultured on films mineralized with calcium phosphate show enhanced levels of alkaline phosphatase activity suggesting that such composites have potential use for bone tissue engineering.
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Affiliation(s)
- John G Hardy
- Lehrstuhl Biomaterialien, Universität Bayreuth, Universitätsstraße 30, Bayreuth 95447, Germany.
| | | | - Aldo Leal-Egaña
- Lehrstuhl Biomaterialien, Universität Bayreuth, Universitätsstraße 30, Bayreuth 95447, Germany.
| | - Andreas Walther
- DWI Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, Aachen 52056, Germany.
| | - Helmut Schlaad
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam 14476, Germany.
| | - Helmut Cölfen
- Physical Chemistry, Department of Chemistry, University of Konstanz, Universitätsstr. 10, Konstanz D-78457, Germany.
| | - Thomas R Scheibel
- Lehrstuhl Biomaterialien, Universität Bayreuth, Universitätsstraße 30, Bayreuth 95447, Germany.
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35
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Ravera E, Cerofolini L, Martelli T, Louka A, Fragai M, Luchinat C. (1)H-detected solid-state NMR of proteins entrapped in bioinspired silica: a new tool for biomaterials characterization. Sci Rep 2016; 6:27851. [PMID: 27279168 PMCID: PMC4899708 DOI: 10.1038/srep27851] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 05/24/2016] [Indexed: 01/16/2023] Open
Abstract
Proton-detection in solid-state NMR, enabled by high magnetic fields (>18 T) and fast magic angle spinning (>50 kHz), allows for the acquisition of traditional (1)H-(15)N experiments on systems that are too big to be observed in solution. Among those, proteins entrapped in a bioinspired silica matrix are an attractive target that is receiving a large share of attention. We demonstrate that (1)H-detected SSNMR provides a novel approach to the rapid assessment of structural integrity in proteins entrapped in bioinspired silica.
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Affiliation(s)
- Enrico Ravera
- Magnetic Resonance Center (CERM), University of Florence, and Interuniversity Consortium for Magnetic Resonance of Metalloproteins (CIRMMP), Via L. Sacconi 6, 50019 Sesto Fiorentino (FI), Italy
| | - Linda Cerofolini
- Magnetic Resonance Center (CERM), University of Florence, and Interuniversity Consortium for Magnetic Resonance of Metalloproteins (CIRMMP), Via L. Sacconi 6, 50019 Sesto Fiorentino (FI), Italy
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy
| | - Tommaso Martelli
- Giotto Biotech S.R.L., Via Madonna del Piano 6, 50019 Sesto Fiorentino (FI), Italy
| | - Alexandra Louka
- Magnetic Resonance Center (CERM), University of Florence, and Interuniversity Consortium for Magnetic Resonance of Metalloproteins (CIRMMP), Via L. Sacconi 6, 50019 Sesto Fiorentino (FI), Italy
| | - Marco Fragai
- Magnetic Resonance Center (CERM), University of Florence, and Interuniversity Consortium for Magnetic Resonance of Metalloproteins (CIRMMP), Via L. Sacconi 6, 50019 Sesto Fiorentino (FI), Italy
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy
| | - Claudio Luchinat
- Magnetic Resonance Center (CERM), University of Florence, and Interuniversity Consortium for Magnetic Resonance of Metalloproteins (CIRMMP), Via L. Sacconi 6, 50019 Sesto Fiorentino (FI), Italy
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy
- Giotto Biotech S.R.L., Via Madonna del Piano 6, 50019 Sesto Fiorentino (FI), Italy
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37
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Martelli T, Ravera E, Louka A, Cerofolini L, Hafner M, Fragai M, Becker CFW, Luchinat C. Atomic-Level Quality Assessment of Enzymes Encapsulated in Bioinspired Silica. Chemistry 2015; 22:425-32. [DOI: 10.1002/chem.201503613] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Indexed: 12/23/2022]
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Yu HS, Lee EJ, Seo SJ, Knowles JC, Kim HW. Feasibility of silica-hybridized collagen hydrogels as three-dimensional cell matrices for hard tissue engineering. J Biomater Appl 2015; 30:338-50. [PMID: 26079389 DOI: 10.1177/0885328215590108] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Exploiting hydrogels for the cultivation of stem cells, aiming to provide them with physico-chemical cues suitable for osteogenesis, is a critical demand for bone engineering. Here, we developed hybrid compositions of collagen and silica into hydrogels via a simple sol-gel process. The physico-chemical and mechanical properties, degradation behavior, and bone-bioactivity were characterized in-depth; furthermore, the in vitro mesenchymal stem cell growth and osteogenic differentiation behaviors within the 3D hybrid gel matrices were communicated for the first time. The hydrolyzed and condensed silica phase enabled chemical links with the collagen fibrils to form networked hybrid gels. The hybrid gels showed improved chemical stability and greater resistance to enzymatic degradation. The in vitro apatite-forming ability was enhanced by the hybrid composition. The viscoelastic mechanical properties of the hybrid gels were significantly improved in terms of the deformation resistance to an applied load and the modulus values under a dynamic oscillation. Mesenchymal stem cells adhered well to the hybrid networks and proliferated actively with substantial cytoskeletal extensions within the gel matrices. Of note, the hybrid gels substantially reduced the cell-mediated gel contraction behaviors, possibly due to the stiffer networks and higher resistance to cell-mediated degradation. Furthermore, the osteogenic differentiation of cells, including the expression of bone-associated genes and protein, was significantly upregulated within the hybrid gel matrices. Together with the physico-chemical and mechanical properties, the cellular behaviors observed within 3D gel matrices, being different from the previous approaches reported on 2D substrates, provide new information on the feasibility and usefulness of the silica-collagen system for stem cell culture and tissue engineering of hard tissues.
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Affiliation(s)
- Hye-Sun Yu
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Cheonan, Republic of Korea
| | - Eun-Jung Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Cheonan, Republic of Korea
| | - Seog-Jin Seo
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Cheonan, Republic of Korea
| | - Jonathan C Knowles
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Cheonan, Republic of Korea Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, UK
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Cheonan, Republic of Korea Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, Republic of Korea
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Zhou S, Huang W, Belton DJ, Simmons LO, Perry CC, Wang X, Kaplan DL. Control of silicification by genetically engineered fusion proteins: silk-silica binding peptides. Acta Biomater 2015; 15:173-80. [PMID: 25462851 DOI: 10.1016/j.actbio.2014.10.040] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 10/26/2014] [Accepted: 10/29/2014] [Indexed: 11/18/2022]
Abstract
In the present study, an artificial spider silk gene, 6mer, derived from the consensus sequence of Nephila clavipes dragline silk gene, was fused with different silica-binding peptides (SiBPs), A1, A3 and R5, to study the impact of the fusion protein sequence chemistry on silica formation and the ability to generate a silk-silica composite in two different bioinspired silicification systems: solution-solution and solution-solid. Condensed silica nanoscale particles (600-800 nm) were formed in the presence of the recombinant silk and chimeras, which were smaller than those formed by 15mer-SiBP chimeras, revealing that the molecular weight of the silk domain correlated to the sizes of the condensed silica particles in the solution system. In addition, the chimeras (6mer-A1/A3/R5) produced smaller condensed silica particles than the control (6mer), revealing that the silica particle size formed in the solution system is controlled by the size of protein assemblies in solution. In the solution-solid interface system, silicification reactions were performed on the surface of films fabricated from the recombinant silk proteins and chimeras and then treated to induce β-sheet formation. A higher density of condensed silica formed on the films containing the lowest β-sheet content while the films with the highest β-sheet content precipitated the lowest density of silica, revealing an inverse correlation between the β-sheet secondary structure and the silica content formed on the films. Intriguingly, the 6mer-A3 showed the highest rate of silica condensation but the lowest density of silica deposition on the films, compared with 6mer-A1 and -R5, revealing antagonistic crosstalk between the silk and the SiBP domains in terms of protein assembly. These findings offer a path forward in the tailoring of biopolymer-silica composites for biomaterial related needs.
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Affiliation(s)
- Shun Zhou
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, PR China; Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Wenwen Huang
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - David J Belton
- Biomolecular and Materials Interface Research Group, Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| | - Leo O Simmons
- Department of Biochemistry and Molecular Biology, University of Massachusetts, Amherst, MA 01003, USA
| | - Carole C Perry
- Biomolecular and Materials Interface Research Group, Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| | - Xiaoqin Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, PR China; Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - David L Kaplan
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, PR China; Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA.
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40
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Senior L, Crump MP, Williams C, Booth PJ, Mann S, Perriman AW, Curnow P. Structure and function of the silicifying peptide R5. J Mater Chem B 2015; 3:2607-2614. [DOI: 10.1039/c4tb01679c] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first detailed description of the structure and function of the silicifying peptide R5.
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Affiliation(s)
- Laura Senior
- School of Biochemistry
- University of Bristol
- UK
- Bristol Centre for Functional Nanomaterials
- University of Bristol
| | | | | | | | | | - Adam W. Perriman
- School of Cellular and Molecular Medicine
- University of Bristol
- UK
| | - Paul Curnow
- School of Biochemistry
- University of Bristol
- UK
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Borkner CB, Elsner MB, Scheibel T. Coatings and films made of silk proteins. ACS APPLIED MATERIALS & INTERFACES 2014; 6:15611-15625. [PMID: 25004395 DOI: 10.1021/am5008479] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Silks are a class of proteinaceous materials produced by arthropods for various purposes. Spider dragline silk is known for its outstanding mechanical properties, and it shows high biocompatibility, good biodegradability, and a lack of immunogenicity and allergenicity. The silk produced by the mulberry silkworm B. mori has been used as a textile fiber and in medical devices for a long time. Here, recent progress in the processing of different silk materials into highly tailored isotropic and anisotropic coatings for biomedical applications such as tissue engineering, cell adhesion, and implant coatings as well as for optics and biosensors is reviewed.
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Affiliation(s)
- Christian B Borkner
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, ‡Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), §Institut für Bio-Makromoleküle (bio-mac), ∥Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), and ⊥Bayreuther Materialzentrum (BayMAT), Universität Bayreuth , Universitätsstrasse 30, 95440 Bayreuth, Germany
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42
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Sayin E, Baran ET, Hasirci V. Protein-based materials in load-bearing tissue-engineering applications. Regen Med 2014; 9:687-701. [DOI: 10.2217/rme.14.52] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Proteins such as collagen and elastin are robust molecules that constitute nanocomponents in the hierarchically organized ultrastructures of bone and tendon as well as in some of the soft tissues that have load-bearing functions. In the present paper, the macromolecular structure and function of the proteins are reviewed and the potential of mammalian and non-mammalian proteins in the engineering of load-bearing tissue substitutes are discussed. Chimeric proteins have become an important structural biomaterial source and their potential in tissue engineering is highlighted. Processing of proteins challenge investigators and in this review rapid prototyping and microfabrication are proposed as methods for obtaining precisely defined custom-built tissue engineered structures with intrinsic microarchitecture.
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Affiliation(s)
- Esen Sayin
- METU, Department of Biotechnology, Ankara, Turkey
- BIOMATEN, METU Center of Excellence in Biomaterials & Tissue Engineering, Ankara 06800, Turkey
| | - Erkan Türker Baran
- BIOMATEN, METU Center of Excellence in Biomaterials & Tissue Engineering, Ankara 06800, Turkey
| | - Vasif Hasirci
- METU, Department of Biotechnology, Ankara, Turkey
- BIOMATEN, METU Center of Excellence in Biomaterials & Tissue Engineering, Ankara 06800, Turkey
- METU, Departments of Biological Sciences, Ankara, Turkey
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43
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Jansson R, Thatikonda N, Lindberg D, Rising A, Johansson J, Nygren PÅ, Hedhammar M. Recombinant Spider Silk Genetically Functionalized with Affinity Domains. Biomacromolecules 2014; 15:1696-706. [DOI: 10.1021/bm500114e] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Ronnie Jansson
- Department
of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Biomedical Center, SE-751 23 Uppsala, Sweden
| | - Naresh Thatikonda
- Department
of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Biomedical Center, SE-751 23 Uppsala, Sweden
| | - Diana Lindberg
- Department
of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Biomedical Center, SE-751 23 Uppsala, Sweden
| | - Anna Rising
- Department
of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Biomedical Center, SE-751 23 Uppsala, Sweden
- Department
of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet, Novum, fifth floor, SE-141 86 Stockholm, Sweden
| | - Jan Johansson
- Department
of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Biomedical Center, SE-751 23 Uppsala, Sweden
- Department
of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet, Novum, fifth floor, SE-141 86 Stockholm, Sweden
- Institute
of Mathematics and Natural Sciences, Tallinn University, Narva mnt
25, 101 20 Tallinn, Estonia
| | - Per-Åke Nygren
- Division
of Protein Technology, School of Biotechnology, KTH Royal Institute of Technology, SE-106 91 Stockholm, Sweden
| | - My Hedhammar
- Department
of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Biomedical Center, SE-751 23 Uppsala, Sweden
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44
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Cai L, Heilshorn SC. Designing ECM-mimetic materials using protein engineering. Acta Biomater 2014; 10:1751-60. [PMID: 24365704 DOI: 10.1016/j.actbio.2013.12.028] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 12/13/2013] [Accepted: 12/16/2013] [Indexed: 11/26/2022]
Abstract
The natural extracellular matrix (ECM), with its multitude of evolved cell-instructive and cell-responsive properties, provides inspiration and guidelines for the design of engineered biomaterials. One strategy to create ECM-mimetic materials is the modular design of protein-based engineered ECM (eECM) scaffolds. This modular design strategy involves combining multiple protein domains with different functionalities into a single, modular polymer sequence, resulting in a multifunctional matrix with independent tunability of the individual domain functions. These eECMs often enable decoupled control over multiple material properties for fundamental studies of cell-matrix interactions. In addition, since the eECMs are frequently composed entirely of bioresorbable amino acids, these matrices have immense clinical potential for a variety of regenerative medicine applications. This brief review demonstrates how fundamental knowledge gained from structure-function studies of native proteins can be exploited in the design of novel protein-engineered biomaterials. While the field of protein-engineered biomaterials has existed for over 20years, the community is only now beginning to fully explore the diversity of functional peptide modules that can be incorporated into these materials. We have chosen to highlight recent examples that either (i) demonstrate exemplary use as matrices with cell-instructive and cell-responsive properties or (ii) demonstrate outstanding creativity in terms of novel molecular-level design and macro-level functionality.
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45
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Resilin: protein-based elastomeric biomaterials. Acta Biomater 2014; 10:1601-11. [PMID: 23831198 DOI: 10.1016/j.actbio.2013.06.038] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 06/14/2013] [Accepted: 06/21/2013] [Indexed: 12/20/2022]
Abstract
Resilin is an elastomeric protein found in insect cuticles and is remarkable for its high strain, low stiffness, and high resilience. Since the first resilin sequence was identified in Drosophilia melanogaster (fruit fly), researchers have utilized molecular cloning techniques to construct resilin-based proteins for a number of different applications. In addition to exhibiting the superior mechanical properties of resilin, resilin-based proteins are autofluorescent, display self-assembly properties, and undergo phase transitions in response to temperature. These properties have potential application in designing biosensors or environmentally responsive materials for use in tissue engineering or drug delivery. Furthermore, the capability of resilin-based biomaterials has been expanded by designing proteins that include both resilin-based sequences and bioactive domains such as cell-adhesion or matrix metalloproteinase sequences. These new materials maintain the superior mechanical and physical properties of resilin and also have the added benefit of controlling cell response. Because the mechanical and biological properties can be tuned through protein engineering, a wide range of properties can be achieved for tissue engineering applications including muscles, vocal folds, cardiovascular tissues, and cartilage.
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46
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Farr R, Choi DS, Lee SW. Phage-based nanomaterials for biomedical applications. Acta Biomater 2014; 10:1741-50. [PMID: 23823252 DOI: 10.1016/j.actbio.2013.06.037] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 06/11/2013] [Accepted: 06/21/2013] [Indexed: 12/13/2022]
Abstract
Recent advances in nanotechnology enable us to manipulate and produce materials with molecular level control. In the newly emerging field of bionanomedicine, it is essential to precisely control the physical, chemical and biological properties of materials. Among other biological building blocks, viruses are a promising nanomaterial that can be functionalized with great precision. Since the production of viral particles is directed by the genetic information encapsulated in their protein shells, the viral particles create precisely defined sizes and shapes. In addition, the composition and surface properties of the particles can be controlled through genetic engineering and chemical modification. In this manuscript, we review the advances of virus-based nanomaterials for biomedical applications in three different areas: phage therapy, drug delivery and tissue engineering. By exploiting and manipulating the original functions of viruses, viral particles hold great possibilities in these biomedical applications to improve human health.
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47
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48
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Kim Y, Renner JN, Liu JC. Incorporating the BMP-2 peptide in genetically-engineered biomaterials accelerates osteogenic differentiation. Biomater Sci 2014; 2:1110-1119. [DOI: 10.1039/c3bm60333d] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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49
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Boix E, Puddu V, Perry CC. Preparation of hexagonal GeO2 particles with particle size and crystallinity controlled by peptides, silk and silk-peptide chimeras. Dalton Trans 2014; 43:16902-10. [DOI: 10.1039/c4dt01974a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of α-quartz like (hexagonal) GeO2 by a biomimetic approach using peptides, silk and silk-peptide chimeras to control precipitation yield, particle morphology, size and crystallinity of the mineral.
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Affiliation(s)
- Estefania Boix
- Interdisciplinary Biomedical Research Centre
- School of Science and Technology
- Nottingham Trent University
- Clifton Lane, UK
| | - Valeria Puddu
- Interdisciplinary Biomedical Research Centre
- School of Science and Technology
- Nottingham Trent University
- Clifton Lane, UK
| | - Carole C. Perry
- Interdisciplinary Biomedical Research Centre
- School of Science and Technology
- Nottingham Trent University
- Clifton Lane, UK
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50
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Pamirsky IE, Golokhvast KS. Silaffins of diatoms: from applied biotechnology to biomedicine. Mar Drugs 2013; 11:3155-67. [PMID: 24065158 PMCID: PMC3806462 DOI: 10.3390/md11093155] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 07/29/2013] [Accepted: 08/12/2013] [Indexed: 11/24/2022] Open
Abstract
Silaffins are involved in the formation of the cell walls of diatoms. It is known that silaffins can precipitate silica in vitro, forming nano- and micro-particles in the shape of spheres and plates containing many pores. It is important to note that the deposition of silica and the particle morphology in the presence of silaffins affects chemical and physical agents (e.g., peptides, polyamines, phosphate, nitrogen, and the mechanical changes of the reaction mixture). It is believed that silaffins act as an organic matrix for silica-genesis and that silica pore size should reflect the pattern of a matrix. Here, biotechnology related to silaffins is discussed in the context of “a hypothesis of silaffin matrix” and “the LCPA-phosphate model”. We discuss the most promising area of silaffin biotechnology—the development of production methods for silicon structures with desired shapes and nanostructural properties that can be used to create biocompatible materials.
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Affiliation(s)
- Igor E Pamirsky
- Analytical Center of Mineralogical and Geochemical Studies, Institute of Geology and Nature Management Far Eastern Branch, Russian Academy of Sciences, 1 Relochny Lane, Blagoveshchensk 675000, Russian Federation
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