51
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Shuai Y, Lu H, Lv R, Wang J, Wan Q, Mao C, Yang M. Biomineralization Directed by Prenucleated Calcium and Phosphorus Nanoclusters Improving Mechanical Properties and Osteogenic Potential of Antheraea pernyi Silk Fibroin-Based Artificial Periosteum. Adv Healthc Mater 2021; 10:e2001695. [PMID: 33720549 DOI: 10.1002/adhm.202001695] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 01/29/2021] [Indexed: 12/28/2022]
Abstract
The use of biomacromolecules as templates to control the nucleation and growth of hydroxyapatite crystals to prepare bioactive materials is a valuable approach in bone tissue engineering. Here, an artificial periosteum is prepared by biomineralizing Antheraea pernyi fibroin (AF) membrane with prenucleated nanoclusters, which can promote the osteogenic differentiation of mesenchymal stem cells (MSCs) and induce the formation of bone matrix protein in vivo. To achieve this, a biologically inspired prenucleated calcium and phosphorus nanocluster mineralization system is designed to nucleate and generate hydroxyapatite crystals on the surface of the AF membrane. This biomineralization process provides AF membranes with improved elastic modulus and tensile strength. Subsequently, cell viability assay, hemolysis test, and H&E staining show that the mineralized AF (MAF) membranes has good cytocompatibility, hemocompatibility, and histocompatibility in vitro and in vivo. Additionally, the MAF membranes significantly promote osteogenic differentiation of MSCs in the absence of osteogenic inducer in vitro. Experiments in vivo demonstrate that bone-related matrix proteins are highly expressed in MAF groups with or without MSCs seeded. Therefore, the use of bioinspired prenucleated nanoclusters to prepare artificial periosteum based on biomineralized AF membrane is a promising strategy in the field of bone tissue engineering.
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Affiliation(s)
- Yajun Shuai
- Institute of Applied Bioresource Research College of Animal Science Zhejiang University Hangzhou 310058 China
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province College of Animal Science Zhejiang University Hangzhou 310058 China
| | - Huan Lu
- Institute of Applied Bioresource Research College of Animal Science Zhejiang University Hangzhou 310058 China
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province College of Animal Science Zhejiang University Hangzhou 310058 China
| | - Ruyin Lv
- Institute of Applied Bioresource Research College of Animal Science Zhejiang University Hangzhou 310058 China
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province College of Animal Science Zhejiang University Hangzhou 310058 China
| | - Jie Wang
- Institute of Applied Bioresource Research College of Animal Science Zhejiang University Hangzhou 310058 China
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province College of Animal Science Zhejiang University Hangzhou 310058 China
| | - Quan Wan
- Institute of Applied Bioresource Research College of Animal Science Zhejiang University Hangzhou 310058 China
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province College of Animal Science Zhejiang University Hangzhou 310058 China
| | - Chuanbin Mao
- Department of Chemistry and Biochemistry Stephenson Life Sciences Research Center University of Oklahoma Norman OK 73019‐5300 USA
| | - Mingying Yang
- Institute of Applied Bioresource Research College of Animal Science Zhejiang University Hangzhou 310058 China
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation of Zhejiang Province College of Animal Science Zhejiang University Hangzhou 310058 China
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Birjandi AA, Neves VC, Sharpe P. Advances in regenerative dentistry; building with biology. Regen Med 2021; 16:343-345. [PMID: 33759554 DOI: 10.2217/rme-2021-0003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Anahid A Birjandi
- Centre for Craniofacial & Regenerative Biology, Faculty of Dentistry, Oral & Craniofacial Sciences, Kings College London, SE1 9RT, UK
| | - Vitor Cm Neves
- Centre for Craniofacial & Regenerative Biology, Faculty of Dentistry, Oral & Craniofacial Sciences, Kings College London, SE1 9RT, UK.,Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, Kings College London, SE1 9RT, UK
| | - Paul Sharpe
- Centre for Craniofacial & Regenerative Biology, Faculty of Dentistry, Oral & Craniofacial Sciences, Kings College London, SE1 9RT, UK
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Eltantawy MM, Belokon MA, Belogub EV, Ledovich OI, Skorb EV, Ulasevich SA. Self‐Assembled Liesegang Rings of Hydroxyapatite for Cell Culturing. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202000048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Affiliation(s)
- Mervat M. Eltantawy
- Infochemistry Scientific Center ITMO University 9, Lomonosova str. 191002 St. Petersburg Russia
| | - Mikhail A. Belokon
- Infochemistry Scientific Center ITMO University 9, Lomonosova str. 191002 St. Petersburg Russia
| | - Elena V. Belogub
- Federal State Budgetary Institution of Science South Urals Federal Research Center of Mineralogy and Geoecology of the Urals Branch of the Russian Academy of Sciences Chelyabinsk District 456317 Miass Ilmeny Reserve Russia
| | - Olesia I. Ledovich
- Infochemistry Scientific Center ITMO University 9, Lomonosova str. 191002 St. Petersburg Russia
| | - Ekaterina V. Skorb
- Infochemistry Scientific Center ITMO University 9, Lomonosova str. 191002 St. Petersburg Russia
| | - Sviatlana A. Ulasevich
- Infochemistry Scientific Center ITMO University 9, Lomonosova str. 191002 St. Petersburg Russia
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Contessi Negrini N, Angelova Volponi A, Higgins C, Sharpe P, Celiz A. Scaffold-based developmental tissue engineering strategies for ectodermal organ regeneration. Mater Today Bio 2021; 10:100107. [PMID: 33889838 PMCID: PMC8050778 DOI: 10.1016/j.mtbio.2021.100107] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 02/15/2021] [Accepted: 02/27/2021] [Indexed: 12/12/2022] Open
Abstract
Tissue engineering (TE) is a multidisciplinary research field aiming at the regeneration, restoration, or replacement of damaged tissues and organs. Classical TE approaches combine scaffolds, cells and soluble factors to fabricate constructs mimicking the native tissue to be regenerated. However, to date, limited success in clinical translations has been achieved by classical TE approaches, because of the lack of satisfactory biomorphological and biofunctional features of the obtained constructs. Developmental TE has emerged as a novel TE paradigm to obtain tissues and organs with correct biomorphology and biofunctionality by mimicking the morphogenetic processes leading to the tissue/organ generation in the embryo. Ectodermal appendages, for instance, develop in vivo by sequential interactions between epithelium and mesenchyme, in a process known as secondary induction. A fine artificial replication of these complex interactions can potentially lead to the fabrication of the tissues/organs to be regenerated. Successful developmental TE applications have been reported, in vitro and in vivo, for ectodermal appendages such as teeth, hair follicles and glands. Developmental TE strategies require an accurate selection of cell sources, scaffolds and cell culture configurations to allow for the correct replication of the in vivo morphogenetic cues. Herein, we describe and discuss the emergence of this TE paradigm by reviewing the achievements obtained so far in developmental TE 3D scaffolds for teeth, hair follicles, and salivary and lacrimal glands, with particular focus on the selection of biomaterials and cell culture configurations.
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Affiliation(s)
| | - A. Angelova Volponi
- Centre for Craniofacial and Regenerative Biology, King's College London, London, UK
| | - C.A. Higgins
- Department of Bioengineering, Imperial College London, London, UK
| | - P.T. Sharpe
- Centre for Craniofacial and Regenerative Biology, King's College London, London, UK
| | - A.D. Celiz
- Department of Bioengineering, Imperial College London, London, UK
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55
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Saif B, Yang P. Metal-Protein Hybrid Materials with Desired Functions and Potential Applications. ACS APPLIED BIO MATERIALS 2021; 4:1156-1177. [PMID: 35014472 DOI: 10.1021/acsabm.0c01375] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Metal nanohybrids are fast emerging functional nanomaterials with advanced structures, intriguing physicochemical properties, and a broad range of important applications in current nanoscience research. Significant efforts have been devoted toward design and develop versatile metal nanohybrid systems. Among numerous biological components, diverse proteins offer avenues for making advanced multifunctional systems with unusual properties, desired functions, and potential applications. This review discusses the rational design, properties, and applications of metal-protein nanohybrid materials fabricated from proteins and inorganic components. The construction of functional biomimetic nanohybrid materials is first briefly introduced. The properties and functions of these hybrid materials are then discussed. After that, an overview of promising application of biomimetic metal-protein nanohybrid materials is provided. Finally, the key challenges and outlooks related to this fascinating research area are also outlined.
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Affiliation(s)
- Bassam Saif
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P.R. China
| | - Peng Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P.R. China
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56
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Bazina F, Brouxhon SM, Graham UM, Kyrkanides S. Serotonin contributes to the in vitro production of a biomimetic enamel-like material from reprogrammed oral epithelial keratinocytes. Orthod Craniofac Res 2021; 24:494-501. [PMID: 33540478 DOI: 10.1111/ocr.12475] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/08/2021] [Accepted: 01/28/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To evaluate the role of serotonin in the development of a biomimetic enamel-like material in vitro. SETTING AND SAMPLE POPULATION Immortalized murine oral keratinocytes raised from adult mouse mucosa were cultured in vitro. In addition, specimens incorporating molar tooth buds harvested from mice were included in our studies. MATERIALS AND METHODS We used cell-based scaffold-free tissue engineering to assemble three-dimensional (3D) organoids into complex tissue constructs that closely emulate the complexity of adult enamel. We also analysed mouse molar specimens using immunohistochemistry for serotonin expression as well as its cognate receptor. RESULTS TGF-β1-reprogrammed murine oral keratinocytes formed organoids that laid down an amelogenin-rich protein matrix when grown as three-dimensional (3D) cultures in the presence of serotonin. Following mineralization, the newly formed crystals were densified under pressure and vacuum to produce a biomimetic enamel-like material that demonstrated parallel alignment of hydroxyapatite crystals with some interspaced residual organoid matter into enamel prism-like structures conferring size, mechanical properties comparable to tooth enamel, including light translucency. Serotonin expression was localized by immunohistochemistry proximal to the enamel organ of developing molar buds. Moreover, serotonin HTRb2 receptor expression was localized on ameloblasts within the enamel organ proximal to the area where serotonin was immunolocalized. CONCLUSIONS Our results demonstrate that serotonin is inductive in the development of a biomimetic enamel-like material from reprogrammed oral epithelial keratinocytes in vitro. The facileness of harvesting adult somatic cells together with the versatility of our approach offers exciting opportunities to address regenerative challenges linked to lost enamel.
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Affiliation(s)
- Fayrouz Bazina
- Ph.D. Program in Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Sabine M Brouxhon
- Department of Physiology, School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | | | - Stephanos Kyrkanides
- Department of Oral Health Science, College of Dentistry, University of Kentucky, Lexington, KY, USA
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57
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Athanasiadou D, Carneiro KMM. DNA nanostructures as templates for biomineralization. Nat Rev Chem 2021; 5:93-108. [PMID: 37117611 DOI: 10.1038/s41570-020-00242-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/26/2020] [Indexed: 12/22/2022]
Abstract
Nature uses extracellular matrix scaffolds to organize biominerals into hierarchical structures over various length scales. This has inspired the design of biomimetic mineralization scaffolds, with DNA nanostructures being among the most promising. DNA nanotechnology makes use of molecular recognition to controllably give 1D, 2D and 3D nanostructures. The control we have over these structures makes them attractive templates for the synthesis of mineralized tissues, such as bones and teeth. In this Review, we first summarize recent work on the crystallization processes and structural features of biominerals on the nanoscale. We then describe self-assembled DNA nanostructures and come to the intersection of these two themes: recent applications of DNA templates in nanoscale biomineralization, a crucial process to regenerate mineralized tissues.
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58
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González-Obeso C, González-Pérez M, Mano JF, Alonso M, Rodríguez-Cabello JC. Complex Morphogenesis by a Model Intrinsically Disordered Protein. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2005191. [PMID: 33216415 DOI: 10.1002/smll.202005191] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/14/2020] [Indexed: 05/13/2023]
Abstract
The development of intricate and complex self-assembling structures in the micrometer range, such as biomorphs, is a major challenge in materials science. Although complex structures can be obtained from self-assembling materials as they segregate from solution, their size is usually in the nanometer range or requires accessory techniques. Previous studies with intrinsically disordered proteins (IDPs) have shown that the active interplay of different molecular interactions provides access to new and more complex nanostructures. As such, it is hypothesized that enriching the variety of intra- and intermolecular interactions in a model IDP will widen the landscape of sophisticated intermediate structures that can be accessed. In this study, a model silk-elastin-like recombinamer capable of interacting via three non-covalent interactions, namely hydrophobic, ion-pairing, and H-bonding is built. This model material is shown to self-assemble into complex stable micrometer-sized biomorphs. Variation of the block composition, pH, and temperature demonstrates the necessary interplay of all three interactions for the formation of such complex structures.
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Affiliation(s)
- Constancio González-Obeso
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology), University of Valladolid-CIBER-BBN, Paseo de Belén 19, Valladolid, 47011, Spain
- Department of Biomedical Engineering, Tufts University, 4 Colby St., Medford, MA, 02155, USA
| | - Miguel González-Pérez
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology), University of Valladolid-CIBER-BBN, Paseo de Belén 19, Valladolid, 47011, Spain
| | - João F Mano
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Matilde Alonso
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology), University of Valladolid-CIBER-BBN, Paseo de Belén 19, Valladolid, 47011, Spain
| | - José Carlos Rodríguez-Cabello
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology), University of Valladolid-CIBER-BBN, Paseo de Belén 19, Valladolid, 47011, Spain
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59
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Jamal H, Elhussein M. Integration of Regenerative Dentistry Into the Dental Undergraduate Curriculum. FRONTIERS IN DENTAL MEDICINE 2020. [DOI: 10.3389/fdmed.2020.596189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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60
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Fischer NG, Münchow EA, Tamerler C, Bottino MC, Aparicio C. Harnessing biomolecules for bioinspired dental biomaterials. J Mater Chem B 2020; 8:8713-8747. [PMID: 32747882 PMCID: PMC7544669 DOI: 10.1039/d0tb01456g] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Dental clinicians have relied for centuries on traditional dental materials (polymers, ceramics, metals, and composites) to restore oral health and function to patients. Clinical outcomes for many crucial dental therapies remain poor despite many decades of intense research on these materials. Recent attention has been paid to biomolecules as a chassis for engineered preventive, restorative, and regenerative approaches in dentistry. Indeed, biomolecules represent a uniquely versatile and precise tool to enable the design and development of bioinspired multifunctional dental materials to spur advancements in dentistry. In this review, we survey the range of biomolecules that have been used across dental biomaterials. Our particular focus is on the key biological activity imparted by each biomolecule toward prevention of dental and oral diseases as well as restoration of oral health. Additional emphasis is placed on the structure-function relationships between biomolecules and their biological activity, the unique challenges of each clinical condition, limitations of conventional therapies, and the advantages of each class of biomolecule for said challenge. Biomaterials for bone regeneration are not reviewed as numerous existing reviews on the topic have been recently published. We conclude our narrative review with an outlook on the future of biomolecules in dental biomaterials and potential avenues of innovation for biomaterial-based patient oral care.
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Affiliation(s)
- Nicholas G Fischer
- Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, 16-250A Moos Tower, 515 Delaware St. SE, Minneapolis, Minnesota 55455, USA.
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Hedegaard CL, Redondo-Gómez C, Tan BY, Ng KW, Loessner D, Mata A. Peptide-protein coassembling matrices as a biomimetic 3D model of ovarian cancer. SCIENCE ADVANCES 2020; 6:eabb3298. [PMID: 33008910 PMCID: PMC7852381 DOI: 10.1126/sciadv.abb3298] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 08/20/2020] [Indexed: 05/04/2023]
Abstract
Bioengineered three-dimensional (3D) matrices expand our experimental repertoire to study tumor growth and progression in a biologically relevant, yet controlled, manner. Here, we used peptide amphiphiles (PAs) to coassemble with and organize extracellular matrix (ECM) proteins producing tunable 3D models of the tumor microenvironment. The matrix was designed to mimic physical and biomolecular features of tumors present in patients. We included specific epitopes, PA nanofibers, and ECM macromolecules for the 3D culture of human ovarian cancer, endothelial, and mesenchymal stem cells. The multicellular constructs supported the formation of tumor spheroids with extensive F-actin networks surrounding the spheroids, enabling cell-cell communication, and comparative cell-matrix interactions and encapsulation response to those observed in Matrigel. We conducted a proof-of-concept study with clinically used chemotherapeutics to validate the functionality of the multicellular constructs. Our study demonstrates that peptide-protein coassembling matrices serve as a defined model of the multicellular tumor microenvironment of primary ovarian tumors.
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Affiliation(s)
- Clara Louise Hedegaard
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, E1 4NS London, UK
- Institute of Bioengineering, Queen Mary University of London, Mile End Road, E1 4NS London, UK
| | - Carlos Redondo-Gómez
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, E1 4NS London, UK
- Institute of Bioengineering, Queen Mary University of London, Mile End Road, E1 4NS London, UK
| | - Bee Yi Tan
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Kee Woei Ng
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
- Environmental Chemistry and Materials Centre, Nanyang Environment & Water Research Institute, Singapore 637141, Singapore
- Skin Research Institute of Singapore, Singapore 138648, Singapore
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Harvard University, Boston, MA 02115, USA
| | - Daniela Loessner
- Centre for Tumour Microenvironment, Barts Cancer Institute, Queen Mary University of London, EC1M 6BQ London, UK
- Department of Chemical Engineering and Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Melbourne, VIC 3800, Australia
- Department of Anatomy and Developmental Biology, Faculty of Medicine, Monash University, Melbourne, VIC 3800, Australia
| | - Alvaro Mata
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, E1 4NS London, UK.
- Institute of Bioengineering, Queen Mary University of London, Mile End Road, E1 4NS London, UK
- School of Pharmacy, University of Nottingham, NG7 2RD Nottingham, UK
- Department of Chemical and Environmental Engineering, University of Nottingham, NG7 2RD Nottingham, UK
- Biodiscovery Institute, University of Nottingham, NG7 2RD Nottingham, UK
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Structural Biology of Calcium Phosphate Nanoclusters Sequestered by Phosphoproteins. CRYSTALS 2020. [DOI: 10.3390/cryst10090755] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Biofluids that contain stable calcium phosphate nanoclusters sequestered by phosphopeptides make it possible for soft and hard tissues to co-exist in the same organism with relative ease. The stability diagram of a solution of nanocluster complexes shows how the minimum concentration of phosphopeptide needed for stability increases with pH. In the stable region, amorphous calcium phosphate cannot precipitate. Nevertheless, if the solution is brought into contact with hydroxyapatite, the crystalline phase will grow at the expense of the nanocluster complexes. The physico-chemical principles governing the formation, composition, size, structure, and stability of the complexes are described. Examples are given of complexes formed by casein, osteopontin, and recombinant phosphopeptides. Application of these principles and properties to blood serum, milk, urine, and resting saliva is described to show that under physiological conditions they are in the stable region of their stability diagram and so cannot cause soft tissue calcification. Stimulated saliva, however, is in the metastable region, consistent with its role in tooth remineralization. Destabilization of biofluids, with consequential ill-effects, can occur when there is a failure of homeostasis, such as an increase in pH without a balancing increase in the concentration of sequestering phosphopeptides.
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63
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Bijle MN, Ekambaram M, Lo ECM, Yiu CKY. The enamel remineralization potential of fluoride varnishes containing arginine. J Dent 2020; 99:103411. [DOI: 10.1016/j.jdent.2020.103411] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/14/2020] [Accepted: 06/18/2020] [Indexed: 10/24/2022] Open
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64
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Wang D, Deng J, Deng X, Fang C, Zhang X, Yang P. Controlling Enamel Remineralization by Amyloid-Like Amelogenin Mimics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2002080. [PMID: 32583928 DOI: 10.1002/adma.202002080] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/16/2020] [Indexed: 06/11/2023]
Abstract
In situ regeneration of the enamel-like structure of hydroxyapatite (HAp) crystals under oral conditions is significant for dental caries treatment. However, it is still a challenge for dentists to duplicate the elegant and well-aligned apatite structure bonding to the surface of demineralized enamel. A biocompatible amelogenin-inspired matrix, a phase-transited lysozyme (PTL) film mimicking an N-terminal amelogenin with central domain (N-Ame) combined with synthetic peptide (C-AMG) based on the functional domains of C-terminal telopeptide (C-Ame) is shown here, which is formed by amyloid-like lysozyme aggregation at the enamel interface through a rapid one-step aqueous coating process. In the PTL/C-AMG matrix, C-AMG facilitated the oriented arrangement of amorphous calcium phosphate (ACP) nanoparticles and their transformation to ordered enamel-like HAp crystals, while PTL served as a strong interfacial anchor to immobilize the C-AMG peptide and PTL/C-AMG matrix on versatile substrate surfaces. PTL/C-AMG film-coated enamel induced both of the in vivo and in vitro synthesis of HAp crystals, facilitated epitaxial growth of HAp crystals and recovered the highly oriented structure and mechanical properties to levels nearly identical to those of natural enamel. This work underlines the importance of amyloid-like protein aggregates in the biomineralization of enamel, providing a promising strategy for treating dental caries.
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Affiliation(s)
- Dong Wang
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an, 710048, China
| | - Jingjing Deng
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, Tianjin, 30070, China
| | - Xuliang Deng
- Department of Geriatric Dentistry, School and Hospital of Stomatology, Peking University, 22 Zhongguancun South Street, Beijing, 100081, China
| | - Changqing Fang
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an, 710048, China
- The Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an, 710048, China
| | - Xu Zhang
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, Tianjin, 30070, China
| | - Peng Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
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65
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Von Euw S, Azaïs T, Manichev V, Laurent G, Pehau-Arnaudet G, Rivers M, Murali N, Kelly DJ, Falkowski PG. Solid-State Phase Transformation and Self-Assembly of Amorphous Nanoparticles into Higher-Order Mineral Structures. J Am Chem Soc 2020; 142:12811-12825. [PMID: 32568532 DOI: 10.1021/jacs.0c05591] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Materials science has been informed by nonclassical pathways to crystallization, based on biological processes, about the fabrication of damage-tolerant composite materials. Various biomineralizing taxa, such as stony corals, deposit metastable, magnesium-rich, amorphous calcium carbonate nanoparticles that further assemble and transform into higher-order mineral structures. Here, we examine a similar process in abiogenic conditions using synthetic, amorphous calcium magnesium carbonate nanoparticles. Applying a combination of high-resolution imaging and in situ solid-state nuclear magnetic resonance spectroscopy, we reveal the underlying mechanism of the solid-state phase transformation of these amorphous nanoparticles into crystals under aqueous conditions. These amorphous nanoparticles are covered by a hydration shell of bound water molecules. Fast chemical exchanges occur: the hydrogens present within the nanoparticles exchange with the hydrogens from the surface-bound H2O molecules which, in turn, exchange with the hydrogens of the free H2O molecule of the surrounding aqueous medium. This cascade of chemical exchanges is associated with an enhanced mobility of the ions/molecules that compose the nanoparticles which, in turn, allow for their rearrangement into crystalline domains via solid-state transformation. Concurrently, the starting amorphous nanoparticles aggregate and form ordered mineral structures through crystal growth by particle attachment. Sphere-like aggregates and spindle-shaped structures were, respectively, formed from relatively high or low weights per volume of the same starting amorphous nanoparticles. These results offer promising prospects for exerting control over such a nonclassical pathway to crystallization to design mineral structures that could not be achieved through classical ion-by-ion growth.
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Affiliation(s)
- Stanislas Von Euw
- Environmental Biophysics and Molecular Ecology Program, Department of Marine and Coastal Sciences, Rutgers University, 71 Dudley Road, New Brunswick, New Jersey 08901, United States.,Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, D02 R590, Ireland
| | - Thierry Azaïs
- Laboratoire de Chimie de la Matière Condensée de Paris, Sorbonne Université, CNRS, 4 place Jussieu, F-75005, Paris, France
| | - Viacheslav Manichev
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Road, Piscataway, New Jersey 08854, United States.,Institute of Advanced Materials, Devices, and Nanotechnology, Rutgers University, 607 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Guillaume Laurent
- Laboratoire de Chimie de la Matière Condensée de Paris, Sorbonne Université, CNRS, 4 place Jussieu, F-75005, Paris, France
| | - Gérard Pehau-Arnaudet
- UMR 3528 and UTech UBI, Institut Pasteur, 28 rue du Docteur Roux, F-75015 Paris, France
| | - Margarita Rivers
- Institute of Advanced Materials, Devices, and Nanotechnology, Rutgers University, 607 Taylor Road, Piscataway, New Jersey 08854, United States.,Department of Physics, Wellesley College, 106 Central Street, Wellesley, Massachusetts 02481, United States
| | - Nagarajan Murali
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Daniel J Kelly
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, D02 R590, Ireland
| | - Paul G Falkowski
- Environmental Biophysics and Molecular Ecology Program, Department of Marine and Coastal Sciences, Rutgers University, 71 Dudley Road, New Brunswick, New Jersey 08901, United States.,Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Road, Piscataway, New Jersey 08854, United States
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66
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Hedegaard CL, Mata A. Integrating self-assembly and biofabrication for the development of structures with enhanced complexity and hierarchical control. Biofabrication 2020; 12:032002. [DOI: 10.1088/1758-5090/ab84cb] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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67
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68
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Qiu Y, Lin Y, Zhang G. Unique silica biomimetic mineralization of acidic elastin-like polypeptides without hydroxyl and charged residues. Int J Biol Macromol 2020; 153:224-231. [PMID: 32142846 DOI: 10.1016/j.ijbiomac.2020.03.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 02/18/2020] [Accepted: 03/02/2020] [Indexed: 11/26/2022]
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69
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Isaacson KJ, Jensen MM, Steinhauff DB, Kirklow JE, Mohammadpour R, Grunberger JW, Cappello J, Ghandehari H. Location of stimuli-responsive peptide sequences within silk-elastinlike protein-based polymers affects nanostructure assembly and drug-polymer interactions. J Drug Target 2020; 28:766-779. [PMID: 32306773 DOI: 10.1080/1061186x.2020.1757099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Silk-elastinlike protein polymers (SELPs) self-assemble into nanostructures when designed with appropriate silk-to-elastin ratios. Here, we investigate the effect of insertion of a matrix metalloproteinase-responsive peptide sequence, GPQGIFGQ, into various locations within the SELP backbone on supramolecular self-assembly. Insertion of the hydrophilic, enzyme-degradable sequence into the elastin repeats allows the formation of dilution-stable nanostructures, while insertion into the hydrophobic silk motifs inhibited self-assembly. The SELP assemblies retained their lower critical solution temperature (LCST) thermal response, allowing up to eightfold volumetric changes due to temperature-induced size change. A model hydrophobic drug was incorporated into SELP nanoassemblies utilising a combination of precipitation, incubation and tangential flow filtration. While the nanoconstructs degraded in response to MMP activity, drug release kinetics was independent of MMP concentration. Drug release modelling suggests that release is driven by rates of water penetration into the SELP nanostructures and drug dissolution. In vitro testing revealed that SELP nanoassemblies reduced the immunotoxic and haemolytic side effects of doxorubicin in human blood while maintaining its cytotoxic activity.
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Affiliation(s)
- Kyle J Isaacson
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA.,Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA
| | - M Martin Jensen
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA.,Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA
| | - Douglas B Steinhauff
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA.,Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA
| | - James E Kirklow
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA
| | - Raziye Mohammadpour
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA
| | - Jason W Grunberger
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA.,Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA
| | - Joseph Cappello
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA
| | - Hamidreza Ghandehari
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA.,Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA.,Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA
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70
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Wu Y, Okesola BO, Xu J, Korotkin I, Berardo A, Corridori I, di Brocchetti FLP, Kanczler J, Feng J, Li W, Shi Y, Farafonov V, Wang Y, Thompson RF, Titirici MM, Nerukh D, Karabasov S, Oreffo ROC, Carlos Rodriguez-Cabello J, Vozzi G, Azevedo HS, Pugno NM, Wang W, Mata A. Disordered protein-graphene oxide co-assembly and supramolecular biofabrication of functional fluidic devices. Nat Commun 2020; 11:1182. [PMID: 32132534 PMCID: PMC7055247 DOI: 10.1038/s41467-020-14716-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 01/24/2020] [Indexed: 12/12/2022] Open
Abstract
Supramolecular chemistry offers an exciting opportunity to assemble materials with molecular precision. However, there remains an unmet need to turn molecular self-assembly into functional materials and devices. Harnessing the inherent properties of both disordered proteins and graphene oxide (GO), we report a disordered protein-GO co-assembling system that through a diffusion-reaction process and disorder-to-order transitions generates hierarchically organized materials that exhibit high stability and access to non-equilibrium on demand. We use experimental approaches and molecular dynamics simulations to describe the underlying molecular mechanism of formation and establish key rules for its design and regulation. Through rapid prototyping techniques, we demonstrate the system's capacity to be controlled with spatio-temporal precision into well-defined capillary-like fluidic microstructures with a high level of biocompatibility and, importantly, the capacity to withstand flow. Our study presents an innovative approach to transform rational supramolecular design into functional engineering with potential widespread use in microfluidic systems and organ-on-a-chip platforms.
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Affiliation(s)
- Yuanhao Wu
- Institute of Bioengineering, Queen Mary University of London, London, E1 4NS, UK
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
- School of Pharmacy, University of Nottingham, NG7 2RD, Nottingham, UK
- Department of Chemical and Environmental Engineering, University of Nottingham, NG7 2RD, Nottingham, UK
- Biodiscovery Institute, University of Nottingham, NG7 2RD, Nottingham, UK
| | - Babatunde O Okesola
- Institute of Bioengineering, Queen Mary University of London, London, E1 4NS, UK
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Jing Xu
- Institute of Bioengineering, Queen Mary University of London, London, E1 4NS, UK
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Ivan Korotkin
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
- Mathematical Sciences, University of Southampton, Southampton SO17 1BJ, UK
| | - Alice Berardo
- Laboratory of Bio-inspired, Bionic, Nano, Meta Materials & Mechanics, Università di Trento, via Mesiano, 77, I-38123, Trento, Italy
- C3A - Center Agriculture Food Environment, University of Trento/Fondazione Edmund Mach, Via Edmund Mach, 1 - 38010, San Michele all'Adige (TN), Italy
| | - Ilaria Corridori
- Laboratory of Bio-inspired, Bionic, Nano, Meta Materials & Mechanics, Università di Trento, via Mesiano, 77, I-38123, Trento, Italy
| | | | - Janos Kanczler
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton, SO16 6YD, UK
| | - Jingyu Feng
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Weiqi Li
- Institute of Bioengineering, Queen Mary University of London, London, E1 4NS, UK
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Yejiao Shi
- Institute of Bioengineering, Queen Mary University of London, London, E1 4NS, UK
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Vladimir Farafonov
- Department of Physical Chemistry, V. N. Karazin Kharkiv National University, Svobody Sq. 4, Kharkiv, 61022, Ukraine
| | - Yiqiang Wang
- United Kingdom Atomic Energy Authority, Culham Science Centre, Abingdon, OX14 3DB, UK
| | - Rebecca F Thompson
- The Astbury Biostructure Laboratory, Astbury Centre for Structural Molecular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Maria-Magdalena Titirici
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Dmitry Nerukh
- Systems Analytics Research Institute, Department of Mathematics, Aston University, Birmingham, B4 7ET, UK
| | - Sergey Karabasov
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Richard O C Oreffo
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton, SO16 6YD, UK
| | | | - Giovanni Vozzi
- Research Center'E. Piaggio' & Dipartimento di Ingegneria dell'Informazione, University of Pisa, Largo Lucio Lazzarino, 256126, Pisa, Italy
| | - Helena S Azevedo
- Institute of Bioengineering, Queen Mary University of London, London, E1 4NS, UK
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Nicola M Pugno
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
- Laboratory of Bio-inspired, Bionic, Nano, Meta Materials & Mechanics, Università di Trento, via Mesiano, 77, I-38123, Trento, Italy
- KET Labs, Edoardo Amaldi Foundation, Via del Politecnico snc, 00133, Rome, Italy
| | - Wen Wang
- Institute of Bioengineering, Queen Mary University of London, London, E1 4NS, UK
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - Alvaro Mata
- Institute of Bioengineering, Queen Mary University of London, London, E1 4NS, UK.
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK.
- School of Pharmacy, University of Nottingham, NG7 2RD, Nottingham, UK.
- Department of Chemical and Environmental Engineering, University of Nottingham, NG7 2RD, Nottingham, UK.
- Biodiscovery Institute, University of Nottingham, NG7 2RD, Nottingham, UK.
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71
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Wei Y, Liu S, Xiao Z, Zhao H, Luo J, Deng X, Guo L. Enamel Repair with Amorphous Ceramics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907067. [PMID: 31930630 DOI: 10.1002/adma.201907067] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/09/2019] [Indexed: 06/10/2023]
Abstract
Developing high-performance materials in physiological conditions to clinically repair stiff tissue for long lifespan remains a great challenge. Here, an enamel repair strategy is reported by efficiently growing a biocompatible ZrO2 ceramic layer on defective enamel through controllable hydrolysis of Zr4+ in oral-tolerable conditions. Detailed analysis of the grown layer indicates that the grown ZrO2 ceramic is amorphous without grain boundary and dislocation, which endows the repaired enamel with natural enamel comparable mechanical performance (modulus ≈82.5 GPa and hardness ≈5.2 GPa). Besides, the strong chemical connection between unsaturated coordinated Zr4+ in amorphous structure and PO4 3- greatly strengthen the crystalline-amorphous interface of the repaired enamel to endure the long-time mastication damage. Moreover, these ZrO2 ceramics provide hydrophilic, electronegative, and smooth surfaces to resist the adhesion and proliferation of cariogenic bacteria. The hybrid amorphous-crystalline interface design with advantages in biomechanical compatibility would promote the evolution of a variety of cutting-edge functional materials for medical and engineering application.
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Affiliation(s)
- Yan Wei
- Department of Geriatric Dentistry, NMPA Key Laboratory for Dental Materials, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Shaojia Liu
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Zuohui Xiao
- Department of Geriatric Dentistry, NMPA Key Laboratory for Dental Materials, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Hewei Zhao
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Jun Luo
- Center for Electron Microscopy, Institute for New Energy Materials & Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, P. R. China
| | - Xuliang Deng
- Department of Geriatric Dentistry, NMPA Key Laboratory for Dental Materials, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Lin Guo
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
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72
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Hansel CS, Holme MN, Gopal S, Stevens MM. Advances in high-resolution microscopy for the study of intracellular interactions with biomaterials. Biomaterials 2020; 226:119406. [DOI: 10.1016/j.biomaterials.2019.119406] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 07/16/2019] [Accepted: 08/01/2019] [Indexed: 12/15/2022]
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73
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Xu X, Chen X, Li J. Natural protein bioinspired materials for regeneration of hard tissues. J Mater Chem B 2020; 8:2199-2215. [DOI: 10.1039/d0tb00139b] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This review describes the protein bioinspired materials for the repair of hard tissues such as enamel, dentin and bone.
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Affiliation(s)
- Xinyuan Xu
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Xingyu Chen
- College of Medicine
- Southwest Jiaotong University
- Chengdu 610003
- China
| | - Jianshu Li
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
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74
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Hossain MS, Liu X, Maynard TI, Mozhdehi D. Genetically Encoded Inverse Bolaamphiphiles. Biomacromolecules 2019; 21:660-669. [DOI: 10.1021/acs.biomac.9b01380] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Md Shahadat Hossain
- Department of Chemistry, 1-014 Center for Science and Technology, 111 College Place, Syracuse University, Syracuse, New York 13244, United States
| | - Xin Liu
- Department of Chemistry, 1-014 Center for Science and Technology, 111 College Place, Syracuse University, Syracuse, New York 13244, United States
| | - Timothy I. Maynard
- Department of Chemistry, 1-014 Center for Science and Technology, 111 College Place, Syracuse University, Syracuse, New York 13244, United States
| | - Davoud Mozhdehi
- Department of Chemistry, 1-014 Center for Science and Technology, 111 College Place, Syracuse University, Syracuse, New York 13244, United States
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75
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Perale G, Monjo M, Ramis JM, Øvrebø Ø, Betge F, Lyngstadaas P, Haugen HJ. Biomimetic Biomolecules in Next Generation Xeno-Hybrid Bone Graft Material Show Enhanced In Vitro Bone Cells Response. J Clin Med 2019; 8:jcm8122159. [PMID: 31817744 PMCID: PMC6947180 DOI: 10.3390/jcm8122159] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 11/27/2019] [Accepted: 12/04/2019] [Indexed: 12/18/2022] Open
Abstract
Bone defects resulting from trauma, disease, surgery or congenital malformations are a significant health problem worldwide. Consequently, bone is the second most transplanted tissue just after blood. Although bone grafts (BGs) have been used for decades to improve bone repairs, none of the currently available BGs possesses all the desirable characteristics. One way to overcome such limitations is to introduce the feature of controlled release of active bone-promoting biomolecules: however, the administration of, e.g., recombinant Bone morphogenetic proteins (BMPs) have been used in concentrations overshooting physiologically occurring concentrations and has thus raised concerns as documented side effects were recorded. Secondly, most such biomolecules are very sensitive to organic solvents and this hinders their use. Here, we present a novel xeno-hybrid bone graft, SmartBonePep®, with a new type of biomolecule (i.e., intrinsically disordered proteins, IDPs) that is both resistant to processing with organic solvent and both triggers bone cells proliferation and differentiation. SmartBonePep® is an advanced and improved modification of SmartBone®, which is a bone substitute produced by combining naturally-derived mineral bone structures with resorbable polymers and collagen fragments. Not only have we demonstrated that Intrinsically Disordered Proteins (IDPs) can be successfully and safely loaded onto a SmartBonePep®, withstanding the hefty manufacturing processes, but also made them bioavailable in a tuneable manner and proved that these biomolecules are a robust and resilient biomolecule family, being a better candidate with respect to other biomolecules for effectively producing the next generation bone grafts. Most other biomolecules which enhances bone formation, e.g., BMP, would not have tolerated the organic solvent used to produce SmartBonePep®.
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Affiliation(s)
- Giuseppe Perale
- Industrie Biomediche Insubri SA, Via Cantonale 67, 6805 Mezzovico-Vira, Switzerland; (Ø.Ø.); (F.B.)
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstrasse 13, 1200 Vienna, Austria
- Correspondence:
| | - Marta Monjo
- Cell Therapy and Tissue Engineering Group, Research Institute on Health Sciences (IUNICS), University of the Balearic Islands. Ctra. Valldemossa km 7.5, 07122 Palma de Mallorca, Spain; (M.M.); (J.M.R.)
- Balearic Islands Health Research Institute (IdISBa), 07010 Palma de Mallorca, Spain
| | - Joana M. Ramis
- Cell Therapy and Tissue Engineering Group, Research Institute on Health Sciences (IUNICS), University of the Balearic Islands. Ctra. Valldemossa km 7.5, 07122 Palma de Mallorca, Spain; (M.M.); (J.M.R.)
- Balearic Islands Health Research Institute (IdISBa), 07010 Palma de Mallorca, Spain
| | - Øystein Øvrebø
- Industrie Biomediche Insubri SA, Via Cantonale 67, 6805 Mezzovico-Vira, Switzerland; (Ø.Ø.); (F.B.)
- Corticalis AS, Oslo Sciencepark, Gaustadallen 21, 0349 Oslo, Norway; (P.L.); (H.J.H.)
| | - Felice Betge
- Industrie Biomediche Insubri SA, Via Cantonale 67, 6805 Mezzovico-Vira, Switzerland; (Ø.Ø.); (F.B.)
| | - Petter Lyngstadaas
- Corticalis AS, Oslo Sciencepark, Gaustadallen 21, 0349 Oslo, Norway; (P.L.); (H.J.H.)
| | - Håvard J. Haugen
- Corticalis AS, Oslo Sciencepark, Gaustadallen 21, 0349 Oslo, Norway; (P.L.); (H.J.H.)
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76
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Abstract
Natural ivory is no longer readily or legally available, as it is obtained primarily from elephant tusks, which now enjoy international protection. Ivory, however, is the best material known for piano keys. We present a hydroxylapatite–gelatin biocomposite that is chemically identical to natural ivory but with functional properties optimized to replace it. As this biocomposite is fabricated from abundant materials in an environmentally friendly process and is furthermore biodegradable, it is a sustainable solution for piano keys with the ideal functional properties of natural ivory.
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77
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Li C, Lu D, Deng J, Zhang X, Yang P. Amyloid-Like Rapid Surface Modification for Antifouling and In-Depth Remineralization of Dentine Tubules to Treat Dental Hypersensitivity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1903973. [PMID: 31559667 DOI: 10.1002/adma.201903973] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 08/01/2019] [Indexed: 06/10/2023]
Abstract
Exposure of dentinal tubules (DTs) leads to the transmission of external stimuli within the DTs, causing dental hypersensitivity (DH). To treat DH, various desensitizers have been developed for occluding DTs. However, most desensitizers commercially available or in development are only able to seal the orifices, rather than the deep regions of the DTs, thus lacking long-term stability. Herein, it is shown that the fast amyloid-like aggregation of lysozyme (lyso) conjugated with poly(ethylene glycol) (PEG) (lyso-PEG) can afford a robust ultrathin nanofilm on the deep walls of DTs through a rapid one-step aqueous coating process (in 2 min). The resultant nanofilm provides a highly effective antifouling platform for resisting the attachment of oral bacteria such as Streptococcus mutans and induces remineralization in the DTs to seal both the orifices and depths of the DTs by forming hydroxyapatite (HAp) minerals in situ. Both in vitro and in vivo animal experiments prove that the nanofilm-coated DTs are occluded with a depth of over 60 ± 5 µ m, which is at least 6 times deeper than that reported in the literature. This approach thus demonstrates the concept that an amyloid-like proteinaceous nanofilm can offer an inexpensive, rapid, and efficient therapy for treating DH with long-term effect.
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Affiliation(s)
- Chen Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Danyang Lu
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, Tianjin, 30070, China
| | - Jingjing Deng
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, Tianjin, 30070, China
| | - Xu Zhang
- School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, Tianjin, 30070, China
| | - Peng Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
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78
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Affiliation(s)
- Rein V. Ulijn
- Advanced Science Research Center (ASRC) at the Graduate Center City University of New York (CUNY) 10017 New York, NY, USA
- Department of Chemistry Hunter College, CUNY 10065 New York, NY USA
- Biochemistry and Chemistry Ph.D. Programs The Graduate Center of the CUNY 10016 New York, NY USA
| | - Ayala Lampel
- School of Molecular Cell Biology and Biotechnology Tel Aviv University 6997801 Tel Aviv Israel
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79
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Skeletal development in the sea urchin relies upon protein families that contain intrinsic disorder, aggregation-prone, and conserved globular interactive domains. PLoS One 2019; 14:e0222068. [PMID: 31574084 PMCID: PMC6771980 DOI: 10.1371/journal.pone.0222068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 08/21/2019] [Indexed: 12/02/2022] Open
Abstract
The formation of the sea urchin spicule skeleton requires the participation of hydrogel-forming protein families that regulate mineral nucleation and nanoparticle assembly processes that give rise to the spicule. However, the structure and molecular behavior of these proteins is not well established, and thus our ability to understand this process is hampered. We embarked on a study of sea urchin spicule proteins using a combination of biophysical and bioinformatics techniques. Our biophysical findings indicate that recombinant variants of the two most studied spicule matrix proteins, SpSM50 and SpSM30B/C (S. purpuratus) have a conformational landscape that include a C-terminal random coil/intrinsically disordered MAPQG sequence coupled to a conserved, folded N-terminal C-type lectin-like (CTLL) domain, with SpSM50 > SpSM30B/C with regard to intrinsic disorder. Both proteins possess solvent-accessible unfolded MAQPG sequence regions where Asn, Gln, and Arg residues may be accessible for protein hydrogel interactions with water molecules. Our bioinformatics study included seven other spicule matrix proteins where we note similarities between these proteins and rare, unusual proteins that possess folded and unfolded traits. Moreover, spicule matrix proteins possess three types of sequences: intrinsically disordered, amyloid-like, and folded protein-protein interactive. Collectively these reactive domains would be capable of driving protein assembly and hydrogel formation. Interestingly, three types of global conformations are predicted for the nine member protein set, wherein we note variations in the arrangement of intrinsically disordered and interactive globular domains. These variations may reflect species-specific requirements for spiculogenesis. We conclude that the molecular landscape of spicule matrix protein families enables them to function as hydrogelators, nucleators, and assemblers of mineral nanoparticles.
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80
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Gonzalez-Fernandez T, Sikorski P, Leach JK. Bio-instructive materials for musculoskeletal regeneration. Acta Biomater 2019; 96:20-34. [PMID: 31302298 PMCID: PMC6717669 DOI: 10.1016/j.actbio.2019.07.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 06/26/2019] [Accepted: 07/09/2019] [Indexed: 02/06/2023]
Abstract
The prevalence and cost of disorders affecting the musculoskeletal system are predicted to rise significantly in the coming years due to the aging global population and the increase of associated risk factors. Despite being the second largest cause of disability, the clinical options for therapeutic intervention remain limited. The clinical translation of cell-based therapies for the treatment of musculoskeletal disorders faces many challenges including maintenance of cell survival in the harsh in vivo environment and the lack of control over regulating cell phenotype upon implantation. In order to address these challenges, the development of bio-instructive materials to modulate cell behavior has taken center stage as a strategy to increase the therapeutic potential of various cell populations. However, the determination of the necessary cues for a specific application and how these signals should be presented from a biomaterial remains elusive. This review highlights recent biochemical and physical strategies used to engineer bio-instructive materials for the repair of musculoskeletal tissues. There is a particular emphasis on emerging efforts such as the engineering of immunomodulatory and antibacterial materials, as well as the incorporation of these strategies into biofabrication and organ-on-a-chip approaches. STATEMENT OF SIGNIFICANCE: Disorders affecting the musculoskeletal system affect individuals across the lifespan and have a profound effect on mobility and quality of life. While small defects in many tissues can heal successfully, larger defects are often unable to heal or instead heal with inferior quality fibrous tissue and require clinical intervention. Cell-based therapies are a promising option for clinical translation, yet challenges related to maintaining cell survival and instructing cell phenotype upon implantation have limited the success of this approach. Bio-instructive materials provide an exciting opportunity to modulate cell behavior and enhance the efficacy of cell-based approaches for musculoskeletal repair. However, the identification of critical instructive cues and how to present these stimuli is a focus of intense investigation. This review highlights recent biochemical and physical strategies used to engineer bio-instructive materials for the repair of musculoskeletal tissues, while also considering exciting progress in the engineering of immunomodulatory and antibacterial materials.
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Affiliation(s)
| | - Pawel Sikorski
- Department of Biomedical Engineering, University of California, Davis, Davis, CA, USA; Department of Physics, Norwegian University of Science and Technology, NTNU, Trondheim, Norway
| | - J Kent Leach
- Department of Biomedical Engineering, University of California, Davis, Davis, CA, USA; Department of Orthopaedic Surgery, School of Medicine, UC Davis Health, Sacramento, CA, USA.
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81
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El Gezawi M, Wölfle UC, Haridy R, Fliefel R, Kaisarly D. Remineralization, Regeneration, and Repair of Natural Tooth Structure: Influences on the Future of Restorative Dentistry Practice. ACS Biomater Sci Eng 2019; 5:4899-4919. [PMID: 33455239 DOI: 10.1021/acsbiomaterials.9b00591] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Currently, the principal strategy for the treatment of carious defects involves cavity preparations followed by the restoration of natural tooth structure with a synthetic material of inferior biomechanical and esthetic qualities and with questionable long-term clinical reliability of the interfacial bonds. Consequently, prevention and minimally invasive dentistry are considered basic approaches for the preservation of sound tooth structure. Moreover, conventional periodontal therapies do not always ensure predictable outcomes or completely restore the integrity of the periodontal ligament complex that has been lost due to periodontitis. Much effort and comprehensive research have been undertaken to mimic the natural development and biomineralization of teeth to regenerate and repair natural hard dental tissues and restore the integrity of the periodontium. Regeneration of the dentin-pulp tissue has faced several challenges, starting with the basic concerns of clinical applicability. Recent technologies and multidisciplinary approaches in tissue engineering and nanotechnology, as well as the use of modern strategies for stem cell recruitment, synthesis of effective biodegradable scaffolds, molecular signaling, gene therapy, and 3D bioprinting, have resulted in impressive outcomes that may revolutionize the practice of restorative dentistry. This Review covers the current approaches and technologies for remineralization, regeneration, and repair of natural tooth structure.
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Affiliation(s)
- Moataz El Gezawi
- Department of Restorative Dental Sciences, Imam Abdulrahman Bin Faisal University, Dammam 34221, Saudi Arabia
| | - Uta Christine Wölfle
- Department of Conservative Dentistry and Periodontology, University Hospital, LMU Munich, 80336 Munich, Germany
| | - Rasha Haridy
- Department of Clinical Dental Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia.,Department of Conservative Dentistry, Faculty of Oral and Dental Medicine, Cairo University, Cairo 11553, Egypt
| | - Riham Fliefel
- Experimental Surgery and Regenerative Medicine (ExperiMed), University Hospital, LMU Munich, 80336 Munich, Germany.,Department of Oral and Maxillofacial Surgery, University Hospital, LMU Munich, 80337 Munich, Germany.,Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Alexandria University, Alexandria 21526, Egypt
| | - Dalia Kaisarly
- Department of Conservative Dentistry and Periodontology, University Hospital, LMU Munich, 80336 Munich, Germany.,Biomaterials Department, Faculty of Oral and Dental Medicine, Cairo University, Cairo 11553, Egypt
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82
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Thrivikraman G, Athirasala A, Gordon R, Zhang L, Bergan R, Keene DR, Jones JM, Xie H, Chen Z, Tao J, Wingender B, Gower L, Ferracane JL, Bertassoni LE. Rapid fabrication of vascularized and innervated cell-laden bone models with biomimetic intrafibrillar collagen mineralization. Nat Commun 2019; 10:3520. [PMID: 31388010 PMCID: PMC6684598 DOI: 10.1038/s41467-019-11455-8] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 07/16/2019] [Indexed: 11/12/2022] Open
Abstract
Bone tissue, by definition, is an organic–inorganic nanocomposite, where metabolically active cells are embedded within a matrix that is heavily calcified on the nanoscale. Currently, there are no strategies that replicate these definitive characteristics of bone tissue. Here we describe a biomimetic approach where a supersaturated calcium and phosphate medium is used in combination with a non-collagenous protein analog to direct the deposition of nanoscale apatite, both in the intra- and extrafibrillar spaces of collagen embedded with osteoprogenitor, vascular, and neural cells. This process enables engineering of bone models replicating the key hallmarks of the bone cellular and extracellular microenvironment, including its protein-guided biomineralization, nanostructure, vasculature, innervation, inherent osteoinductive properties (without exogenous supplements), and cell-homing effects on bone-targeting diseases, such as prostate cancer. Ultimately, this approach enables fabrication of bone-like tissue models with high levels of biomimicry that may have broad implications for disease modeling, drug discovery, and regenerative engineering. Bone tissue is a complex organic-inorganic nanocomposite and strategies that replicate the characteristics of bone tissue are scarce. Here the authors demonstrate the deposition of nanoscale apatite in collagen embedded with mesenchymal, vascular and nerve cells, using a protein-guided biomineralization approach.
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Affiliation(s)
- Greeshma Thrivikraman
- Division of Biomaterials and Biomechanics, Department of Restorative Dentistry, School of Dentistry, Oregon Health and Science University, Portland, OR, 97201, USA
| | - Avathamsa Athirasala
- Department of Biomedical Engineering, School of Medicine, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Ryan Gordon
- Division of Hematology/Oncology, Knight Cancer Institute, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Limin Zhang
- Division of Hematology/Oncology, Knight Cancer Institute, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Raymond Bergan
- Division of Hematology/Oncology, Knight Cancer Institute, Oregon Health and Science University, Portland, OR, 97239, USA
| | | | - James M Jones
- Center for Regenerative Medicine, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Hua Xie
- Center for Regenerative Medicine, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Zhiqiang Chen
- Center for Electron Microscopy and Nanofabrication, Portland State University, Portland, OR, 97201, USA
| | - Jinhui Tao
- Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Brian Wingender
- Department of Materials Science and Engineering, University of Florida, Gainesville, FL, 32603, USA
| | - Laurie Gower
- Department of Materials Science and Engineering, University of Florida, Gainesville, FL, 32603, USA
| | - Jack L Ferracane
- Division of Biomaterials and Biomechanics, Department of Restorative Dentistry, School of Dentistry, Oregon Health and Science University, Portland, OR, 97201, USA
| | - Luiz E Bertassoni
- Division of Biomaterials and Biomechanics, Department of Restorative Dentistry, School of Dentistry, Oregon Health and Science University, Portland, OR, 97201, USA. .,Department of Biomedical Engineering, School of Medicine, Oregon Health and Science University, Portland, OR, 97239, USA. .,Center for Regenerative Medicine, Oregon Health and Science University, Portland, OR, 97239, USA. .,Cancer Early Detection Advanced Research (CEDAR), Knight Cancer Institute, Oregon Health and Science University, Portland, OR, 97239, USA.
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83
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Ibáñez-Fonseca A, Flora T, Acosta S, Rodríguez-Cabello JC. Trends in the design and use of elastin-like recombinamers as biomaterials. Matrix Biol 2019; 84:111-126. [PMID: 31288085 DOI: 10.1016/j.matbio.2019.07.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 06/23/2019] [Accepted: 07/05/2019] [Indexed: 12/16/2022]
Abstract
Elastin-like recombinamers (ELRs), which derive from one of the repetitive domains found in natural elastin, have been intensively studied in the last few years from several points of view. In this mini review, we discuss all the recent works related to the investigation of ELRs, starting with those that define these polypeptides as model intrinsically disordered proteins or regions (IDPs or IDRs) and its relevance for some biomedical applications. Furthermore, we summarize the current knowledge on the development of drug, vaccine and gene delivery systems based on ELRs, while also emphasizing the use of ELR-based hydrogels in tissue engineering and regenerative medicine (TERM). Finally, we show different studies that explore applications in other fields, and several examples that describe biomaterial blends in which ELRs have a key role. This review aims to give an overview of the recent advances regarding ELRs and to encourage further investigation of their properties and applications.
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Affiliation(s)
- Arturo Ibáñez-Fonseca
- BIOFORGE Lab, CIBER-BBN, University of Valladolid, Paseo de Belén 19, 47011 Valladolid, Spain
| | - Tatjana Flora
- BIOFORGE Lab, CIBER-BBN, University of Valladolid, Paseo de Belén 19, 47011 Valladolid, Spain
| | - Sergio Acosta
- BIOFORGE Lab, CIBER-BBN, University of Valladolid, Paseo de Belén 19, 47011 Valladolid, Spain
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84
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Gourgas O, Muiznieks LD, Bello DG, Nanci A, Sharpe S, Cerruti M. Cross-Linked Elastin-like Polypeptide Membranes as a Model for Medial Arterial Calcification. Biomacromolecules 2019; 20:2625-2636. [DOI: 10.1021/acs.biomac.9b00417] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Ophélie Gourgas
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
| | - Lisa D. Muiznieks
- Molecular Medicine, Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada
| | - Dainelys Guadarrama Bello
- Department of Stomatology, Faculty of Dental Medicine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
| | - Antonio Nanci
- Department of Stomatology, Faculty of Dental Medicine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
| | - Simon Sharpe
- Molecular Medicine, Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada
- Department of Biochemistry, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
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85
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Liang K, Wang S, Tao S, Xiao S, Zhou H, Wang P, Cheng L, Zhou X, Weir MD, Oates TW, Li J, Xu HHK. Dental remineralization via poly(amido amine) and restorative materials containing calcium phosphate nanoparticles. Int J Oral Sci 2019; 11:15. [PMID: 31068570 PMCID: PMC6506538 DOI: 10.1038/s41368-019-0048-z] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 03/23/2019] [Accepted: 03/25/2019] [Indexed: 02/05/2023] Open
Abstract
Tooth decay is prevalent, and secondary caries causes restoration failures, both of which are related to demineralization. There is an urgent need to develop new therapeutic materials with remineralization functions. This article represents the first review on the cutting edge research of poly(amido amine) (PAMAM) in combination with nanoparticles of amorphous calcium phosphate (NACP). PAMAM was excellent nucleation template, and could absorb calcium (Ca) and phosphate (P) ions via its functional groups to activate remineralization. NACP composite and adhesive showed acid-neutralization and Ca and P ion release capabilities. PAMAM+NACP together showed synergistic effects and produced triple benefits: excellent nucleation templates, superior acid-neutralization, and ions release. Therefore, the PAMAM+NACP strategy possessed much greater remineralization capacity than using PAMAM or NACP alone. PAMAM+NACP achieved dentin remineralization even in an acidic solution without any initial Ca and P ions. Besides, the long-term remineralization capability of PAMAM+NACP was established. After prolonged fluid challenge, the immersed PAMAM with the recharged NACP still induced effective dentin mineral regeneration. Furthermore, the hardness of pre-demineralized dentin was increased back to that of healthy dentin, indicating a complete remineralization. Therefore, the novel PAMAM+NACP approach is promising to provide long-term therapeutic effects including tooth remineralization, hardness increase, and caries-inhibition capabilities.
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Affiliation(s)
- Kunneng Liang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - Suping Wang
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD, USA.,Department of Operative Dentistry and Endodontics & Stomatology Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Siying Tao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shimeng Xiao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - Han Zhou
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - Ping Wang
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - Lei Cheng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Michael D Weir
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - Thomas W Oates
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD, USA
| | - Jiyao Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
| | - Hockin H K Xu
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD, USA. .,Center for Stem Cell Biology & Regenerative Medicine, University of Maryland School of Medicine, Baltimore, MD, USA. .,Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA.
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86
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Medina-Fernandez I, Celiz AD. Acellular biomaterial strategies for endodontic regeneration. Biomater Sci 2019; 7:506-519. [PMID: 30569918 DOI: 10.1039/c8bm01296b] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Dental decay is treated by removing infected dental tissues such as dentine and restoring the tooth with a material. However, the vast majority of these materials have been designed to be mechanically robust and bioinert, whereas the potential regenerative properties of a biomaterial have not been considered. In endodontics for example, materials are used to seal the pulp cavity to avoid bacterial colonisation of the tooth and prevent further infection. While these treatments are effective in the short term, many of these materials have not been designed to interface with the pulp tissue in a biocompatible manner and are often cytotoxic. This can lead to less favourable long-term outcomes such as devitalisation of the tooth via root-canal therapy or extraction of the tooth. Clinical outcomes could be improved if regenerative approaches were followed whereby the biology of the tooth is engineered for repair and regeneration often with the support of a biomaterial. Within these, acellular or cell homing approaches are particularly interesting, as some regulatory hurdles associated with cellular therapies could be circumvented which may aid their clinical translation. In this review, we highlight progress in regenerative dentistry and focus on exciting developments using acellular biomaterials for regenerating dental tissues.
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87
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Meindlhumer M, Zalesak J, Pitonak R, Todt J, Sartory B, Burghammer M, Stark A, Schell N, Daniel R, Keckes JF, Lessiak M, Köpf A, Weißenbacher R, Keckes J. Biomimetic hard and tough nanoceramic Ti-Al-N film with self-assembled six-level hierarchy. NANOSCALE 2019; 11:7986-7995. [PMID: 30969286 DOI: 10.1039/c8nr10339a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Nature uses self-assembly of a fairly limited selection of components to build hard and tough protective tissues like nacre and enamel. The resulting hierarchical micro/nanostructures provide decisive toughening mechanisms while preserving strength. However, to mimic microstructural and mechanical characteristics of natural materials in application-relevant synthetic nanostructures has proven to be difficult. Here, we demonstrate a biomimetic synthesis strategy, based on chemical vapour deposition technology, employed to fabricate a protective high-temperature resistant nanostructured ceramic TiAlN thin film with six levels of hierarchy. By using just two variants of gaseous precursors and through bottom-up self-assembly, an irregularly arranged hard and tough multilayer stack was formed, consisting of hard sublayers with herringbone micrograins, separated by tough interlayers with spherical nanograins, respectively composed of lamellar nanostructures of alternating coherent/incoherent, hard/tough, single-/poly-crystalline platelets. Micro- and nanomechanical testing, performed in situ in scanning and transmission electron microscopes, manifests intrinsic toughening mechanisms mediated by five types of interfaces resulting in intergranular, transgranular and cleavage fracture modes with zigzag-like crack patterns at multiple length-scales. The hierarchical 2.7 μm thick film self-assembled during ∼15 minutes of deposition time shows hardness, fracture stress and toughness of ∼31 GPa, ∼7.9 GPa and ∼4.7 MPa m0.5, respectively, as well as phase/microstructural thermal stability up to ∼950/900 °C. The film's microstructural and mechanical characteristics represent a milestone in the production of protective and wear-resistant thin films.
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Affiliation(s)
- Michael Meindlhumer
- Department of Materials Physics, Montanuniversität Leoben and Erich Schmid Institute for Materials Science, Austrian Academy of Sciences, 8700 Leoben, Austria.
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88
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Mozaffari MS, Emami G, Khodadadi H, Baban B. Stem cells and tooth regeneration: prospects for personalized dentistry. EPMA J 2019; 10:31-42. [PMID: 30984312 PMCID: PMC6459449 DOI: 10.1007/s13167-018-0156-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 12/18/2018] [Indexed: 12/21/2022]
Abstract
Over the last several decades, a wealth of information has become available regarding various sources of stem cells and their potential use for regenerative purposes. Given the intense debate regarding embryonic stem cells, much of the focus has centered around application of adult stem cells for regenerative engineering along with other relevant aspects including use of growth factors and scaffolding materials. The more recent discovery of tooth-derived stem cells has sparked much interest in their application to regenerative dentistry to treat and alleviate the most prevalent oral diseases-i.e., dental caries and periodontal diseases. Also exciting is the advent of induced pluripotent stem cells, which provides the means of using patient-derived somatic cells for their creation, and their eventual application for generation of the dental complex. Thus, evolving developments in the field of regenerative dentistry indicate the prospect of constructing "custom-made" tooth and supporting structures thereby fostering the realization of "personalized dentistry." On the other hand, others have explored the possibility of augmenting endogenous regenerative capacity through utilization of small molecules to regulate molecular signaling mechanisms that mediate regeneration of tooth structure. This review is focused on these aspects of regenerative dentistry in view of their relevance to personalized dentistry.
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Affiliation(s)
- Mahmood S. Mozaffari
- Department of Oral Biology and Diagnostic Sciences; CL-2134, Dental College of Georgia, Augusta University, Augusta, GA 30912-1128 USA
| | - Golnaz Emami
- Department of Oral Biology and Diagnostic Sciences; CL-2134, Dental College of Georgia, Augusta University, Augusta, GA 30912-1128 USA
| | - Hesam Khodadadi
- Department of Oral Biology and Diagnostic Sciences; CL-2134, Dental College of Georgia, Augusta University, Augusta, GA 30912-1128 USA
| | - Babak Baban
- Department of Oral Biology and Diagnostic Sciences; CL-2134, Dental College of Georgia, Augusta University, Augusta, GA 30912-1128 USA
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89
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Quintanilla-Sierra L, García-Arévalo C, Rodriguez-Cabello J. Self-assembly in elastin-like recombinamers: a mechanism to mimic natural complexity. Mater Today Bio 2019; 2:100007. [PMID: 32159144 PMCID: PMC7061623 DOI: 10.1016/j.mtbio.2019.100007] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 05/10/2019] [Accepted: 05/13/2019] [Indexed: 12/19/2022] Open
Abstract
The topic of self-assembled structures based on elastin-like recombinamers (ELRs, i.e., elastin-like polymers recombinantly bio-produced) has released a noticeable amount of references in the last few years. Most of them are intended for biomedical applications. In this review, a complete revision of the bibliography is carried out. Initially, the self-assembly (SA) concept is considered from a general point of view, and then ELRs are described and characterized based on their intrinsic disorder. A classification of the different self-assembled ELR-based structures is proposed based on their morphologies, paying special attention to their tentative modeling. The impact of the mechanism of SA on these biomaterials is analyzed. Finally, the implications of ELR SA in biological systems are considered.
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Affiliation(s)
| | | | - J.C. Rodriguez-Cabello
- BIOFORGE (Group for Advanced Materials and Nanobiotechnology), CIBER-BBN, University of Valladolid, 47011, Valladolid, Spain
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90
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Yang X, Wang M, Yang Y, Cui B, Xu Z, Yang X. Physical origin underlying the prenucleation-cluster-mediated nonclassical nucleation pathways for calcium phosphate. Phys Chem Chem Phys 2019; 21:14530-14540. [PMID: 30984939 DOI: 10.1039/c9cp00919a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The involvement of prenucleation clusters (PNCs) in crystallization from a supersaturated solution has been recently admitted within the framework of nonclassical nucleation theory; however, little is known about PNCs, at the quantitative level, for their formation mechanism and stability, the new phase formed by them, as well as their impact on nucleation barriers. Herein, using the sophisticated free energy calculations with a cumulative simulation time of over 5 μs, we identify a thermodynamically favored pathway of the PNC-mediated nucleation for calcium phosphate, starting with the ion pair association in solution. We demonstrate that such an ion association occurs not only between cations and anions, but also for the polyatomic species with charges of the same sign, which, in fact, leads to PNC formation via the consecutive coordination of the phosphate ions to calcium. The free energy decomposition calculations illustrate that the water phase is capable to either hinder or promote ion association for the abovementioned processes, and its specific role is intricately related to the characteristics of the hydration shell around calcium ions. The favorable interactions between the highly charged species play a crucial role in stabilizing the PNC complexes and the aggregates formed by PNCs. Furthermore, our present work reveals that the uptake of an extra calcium ion is the first and mandatory step to trigger PNC aggregation into amorphous calcium phosphate (ACP) by eliminating the related free energy barriers. Our theoretical study successfully provides quantitative explanations to a large set of experimental data in the field, which is currently under intense discussions associated with the nonclassical nucleation mechanism. The combination of computational methods developed in our present work offers a feasible and general solution to quantitatively and systematically study ion associations and crystal nucleation/growth in an aqueous solution at the atomic level, which are normally inaccessible to most of the existing experimental acquisitions.
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Affiliation(s)
- Xiao Yang
- College of Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, China.
| | - Mingzhu Wang
- College of Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, China.
| | - Yang Yang
- Department of Chemistry, Lehigh University, 6 East Packer Avenue, Bethlehem, PA 18015, USA
| | - Beiliang Cui
- Network Information Center, Nanjing Tech University, Nanjing 210009, China
| | - Zhijun Xu
- College of Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, China.
| | - Xiaoning Yang
- College of Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, China.
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91
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Chen Z, Miao Z, Zhang P, Xiao H, Liu H, Ding C, Tan H, Li J. Bioinspired enamel-like oriented minerals on general surfaces: towards improved mechanical properties. J Mater Chem B 2019; 7:5237-5244. [PMID: 31380880 DOI: 10.1039/c9tb00676a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Enamel-like oriented hydroxyapatite minerals were obtained on general surfaces by a biomimetic, anodic alumina oxide (AAO)-assisted, double-layered gel system.
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Affiliation(s)
- Zhuoxin Chen
- College of Polymer Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Zhangshu Miao
- College of Polymer Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Pan Zhang
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Hong Xiao
- Department of Pain Management
- West China Hospital
- Sichuan University
- Chengdu 610041
- China
| | - Huan Liu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry
- Beijing Advanced Innovation Center for Biomedical Engineering
- Beihang University
- 100191 Beijing
| | - Chunmei Ding
- College of Polymer Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Hong Tan
- College of Polymer Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Jianshu Li
- College of Polymer Science and Engineering
- Sichuan University
- Chengdu 610065
- China
- State Key Laboratory of Polymer Materials Engineering
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92
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Elsharkawy S, Mata A. Hierarchical Biomineralization: from Nature's Designs to Synthetic Materials for Regenerative Medicine and Dentistry. Adv Healthc Mater 2018; 7:e1800178. [PMID: 29943412 DOI: 10.1002/adhm.201800178] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 04/08/2018] [Indexed: 12/28/2022]
Abstract
Biomineralization is a highly dynamic, yet controlled, process that many living creatures employ to develop functional tissues such as tooth enamel, bone, and others. A major goal in materials science is to create bioinspired functional structures based on the precise organization of building blocks across multiple length scales. Therefore, learning how nature has evolved to use biomineralization could inspire new ways to design and develop synthetic hierarchical materials with enhanced functionality. Toward this goal, this review dissects the current understanding of structure-function relationships of dental enamel and bone using a materials science perspective and discusses a wide range of synthetic technologies that aim to recreate their hierarchical organization and functionality. Insights into how these strategies could be applied for regenerative medicine and dentistry are also provided.
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Affiliation(s)
- Sherif Elsharkawy
- Institute of Bioengineering; Queen Mary University of London; London E1 4NS UK
- School of Engineering and Materials Science; Queen Mary University of London; London E1 4NS UK
- Institute of Dentistry; Barts and The London School of Medicine and Dentistry; Queen Mary University of London; London E1 4NS UK
| | - Alvaro Mata
- Institute of Bioengineering; Queen Mary University of London; London E1 4NS UK
- School of Engineering and Materials Science; Queen Mary University of London; London E1 4NS UK
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