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Ni Y, Jiang Y, Wang K, Shao Z, Chen X, Sun S, Yu H, Li W. Chondrocytes cultured in silk-based biomaterials maintain function and cell morphology. Int J Artif Organs 2018; 42:31-41. [PMID: 30376753 DOI: 10.1177/0391398818806156] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE: To characterize the morphology of chondrocytes and the expression and secretion of active collagen II by these cells cultured within a regenerated silk fibroin film. Silk fibroin film cytocompatibility and the effect of silk fibroin on chondrocytes in vitro were also evaluated. METHODS: Chondrocytes were transfected with a lentivirus containing a green fluorescent protein marker and cultured within a regenerated silk fibroin film. Effects on chondrocyte adhesion, growth, and expression of functional collagen II were assessed in vitro by analysis with immunofluorescent histochemistry and laser scanning confocal microscopy. RESULTS: The results of this study showed that the regenerated silk fibroin film had no cytotoxic effect on chondrocytes. The regenerated silk fibroin film facilitated the adhesion of chondrocytes with typical morphology. Chondrocytes cultured within silk fibroin films exhibited the expression of collagen II in vitro. CONCLUSION: Regenerated silk fibroin film was found to be an excellent biomaterial with good cytocompatibility for chondrocytes, because these cells remained functional and maintained normal cell morphology when cultured in silk-based biomaterials. These results suggest that silk-based chondrocyte biomaterial complexes may provide a feasible and functional biomaterial for repairing clinical cartilage defects.
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Affiliation(s)
- Yusu Ni
- 1 Otology and Skull Base Surgery Department, Eye and ENT Hospital of Shanghai Medical School, Fudan University, Shanghai, China.,2 Department of ENT, Kashgar Prefecture Second People's Hospital of Xinjiang Uygur Autonomous Region, Kashgar, China
| | - Yi Jiang
- 3 Department of ophthalmology, Shanghai Xin Shi Jie Eye Hospital, Shanghai, China
| | - Kaishi Wang
- 1 Otology and Skull Base Surgery Department, Eye and ENT Hospital of Shanghai Medical School, Fudan University, Shanghai, China
| | - Zhengzhong Shao
- 4 Department of Macromolecular Science and The Key Laboratory of Molecular Engineering of Polymer of MOE, Fudan University, Shanghai, China
| | - Xin Chen
- 4 Department of Macromolecular Science and The Key Laboratory of Molecular Engineering of Polymer of MOE, Fudan University, Shanghai, China
| | - Shan Sun
- 5 NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai, China
| | - Huiqian Yu
- 1 Otology and Skull Base Surgery Department, Eye and ENT Hospital of Shanghai Medical School, Fudan University, Shanghai, China
| | - Wen Li
- 5 NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai, China
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52
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Biocompatible silk/calcium silicate/sodium alginate composite scaffolds for bone tissue engineering. Carbohydr Polym 2018; 199:244-255. [DOI: 10.1016/j.carbpol.2018.06.093] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 05/29/2018] [Accepted: 06/20/2018] [Indexed: 11/20/2022]
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53
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Scaffolds Fabricated from Natural Polymers/Composites by Electrospinning for Bone Tissue Regeneration. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1078:49-78. [DOI: 10.1007/978-981-13-0950-2_4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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54
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Thai silk fibroin gelation process enhancing by monohydric and polyhydric alcohols. Int J Biol Macromol 2018; 118:1726-1735. [PMID: 30017976 DOI: 10.1016/j.ijbiomac.2018.07.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/04/2018] [Accepted: 07/05/2018] [Indexed: 02/06/2023]
Abstract
Silk fibroin hydrogel is an interesting natural material in various biomedical applications. However, the self-assembled gelation takes a long time. In this work, different alcohol types are used as gelation enhancers for aqueous silk fibroin solution. Monohydric alcohols having carbon chain length from C1 to C4 and polyhydric alcohols with the number of mono- to tri- hydroxyl groups were used as the enhancers which are effective for rapid gelation. The addition of monohydric alcohol distinctively reduced the gelation time, comparing to the polyhydric alcohol. The gelation process is directly dependent on the polarity of alcohol and hydrophobicity. The alcohol mediated gelation imparts strong viscoelastic property and enhanced compressive modulus of resulting hydrogels. This is due to the effective formation of self-assembled beta sheet network of the silk fibroin chains facilitates the gelation process.
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55
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Buitrago JO, Patel KD, El-Fiqi A, Lee JH, Kundu B, Lee HH, Kim HW. Silk fibroin/collagen protein hybrid cell-encapsulating hydrogels with tunable gelation and improved physical and biological properties. Acta Biomater 2018; 69:218-233. [PMID: 29410166 DOI: 10.1016/j.actbio.2017.12.026] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 12/06/2017] [Accepted: 12/19/2017] [Indexed: 12/17/2022]
Abstract
Cell encapsulating hydrogels with tunable mechanical and biological properties are of special importance for cell delivery and tissue engineering. Silk fibroin and collagen, two typical important biological proteins, are considered potential as cell culture hydrogels. However, both have been used individually, with limited properties (e.g., collagen has poor mechanical properties and cell-mediated shrinkage, and silk fibroin from Bombyx mori (mulberry) lacks cell adhesion motifs). Therefore, the combination of them is considered to achieve improved mechanical and biological properties with respect to individual hydrogels. Here, we show that the cell-encapsulating hydrogels of mulberry silk fibroin / collagen are implementable over a wide range of compositions, enabled simply by combining the different gelation mechanisms. Not only the gelation reaction but also the structural characteristics, consequently, the mechanical properties and cellular behaviors are accelerated significantly by the silk fibroin / collagen hybrid hydrogel approach. Of note, the mechanical and biological properties are tunable to represent the combined merits of individual proteins. The shear storage modulus is tailored to range from 0.1 to 20 kPa along the iso-compositional line, which is considered to cover the matrix stiffness of soft-to-hard tissues. In particular, the silk fibroin / collagen hydrogels are highly elastic, exhibiting excellent resistance to permanent deformation under different modes of stress; without being collapsed or water-squeezed out (vs. not possible in individual proteins) - which results from the mechanical synergism of interpenetrating networks of both proteins. Furthermore, the role of collagen protein component in the hybrid hydrogels provides adhesive sites to cells, stimulating anchorage and spreading significantly with respect to mulberry silk fibroin gel, which lacks cell adhesion motifs. The silk fibroin / collagen hydrogels can encapsulate cells while preserving the viability and growth over a long 3D culture period. Our findings demonstrate that the silk / collagen hydrogels possess physical and biological properties tunable and significantly improved (vs. the individual protein gels), implying their potential uses for cell delivery and tissue engineering. STATEMENT OF SIGNIFICANCE Development of cell encapsulating hydrogels with excellent physical and biological properties is important for the cell delivery and cell-based tissue engineering. Here we communicate for the first time the novel protein composite hydrogels comprised of 'Silk' and 'Collagen' and report their outstanding physical, mechanical and biological properties that are not readily achievable with individual protein hydrogels. The properties include i) gelation accelerated over a wide range of compositions, ii) stiffness levels covering 0.1 kPa to 20 kPa that mimic those of soft-to-hard tissues, iii) excellent elastic behaviors under various stress modes (bending, twisting, stretching, and compression), iv) high resistance to cell-mediated gel contraction, v) rapid anchorage and spreading of cells, and vi) cell encapsulation ability with a long-term survivability. These results come from the synergism of individual proteins of alpha-helix and beta-sheet structured networks. We consider the current elastic cell-encapsulating hydrogels of silk-collagen can be potentially useful for the cell delivery and tissue engineering in a wide spectrum of soft-to-hard tissues.
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Affiliation(s)
- Jennifer O Buitrago
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, South Korea; Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, South Korea
| | - Kapil D Patel
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, South Korea; Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, South Korea
| | - Ahmed El-Fiqi
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, South Korea; Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, South Korea; Glass Research Department, National Research Centre, Cairo, 12622, Egypt
| | - Jung-Hwan Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, South Korea
| | - Banani Kundu
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, South Korea; Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, South Korea
| | - Hae-Hyoung Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, South Korea; Department of Biomaterials Science, College of Dentistry, Dankook University, South Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, South Korea; Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, South Korea; Department of Biomaterials Science, College of Dentistry, Dankook University, South Korea.
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56
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Baba A, Matsushita S, Kitayama K, Asakura T, Sezutsu H, Tanimoto A, Kanekura T. Silk fibroin produced by transgenic silkworms overexpressing the Arg‐Gly‐Asp motif accelerates cutaneous wound healing in mice. J Biomed Mater Res B Appl Biomater 2018; 107:97-103. [DOI: 10.1002/jbm.b.34098] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 01/10/2018] [Accepted: 02/18/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Atsunori Baba
- Department of DermatologyGraduate School of Medical and Dental Sciences, Kagoshima UniversitySakuragaoka Kagoshima Japan
| | - Shigeto Matsushita
- Department of DermatologyGraduate School of Medical and Dental Sciences, Kagoshima UniversitySakuragaoka Kagoshima Japan
| | - Kasumi Kitayama
- Department of BiotechnologyTokyo University of Agriculture and TechnologyKoganei Tokyo Japan
| | - Tetsuo Asakura
- Department of BiotechnologyTokyo University of Agriculture and TechnologyKoganei Tokyo Japan
| | - Hideki Sezutsu
- Transgenic Silkworm Research Unit, National Institute of Agrobiological SciencesTsukuba Ibaraki Japan
| | - Akihide Tanimoto
- Department of Molecular and Cellular PathologyGraduate School of Medical and Dental Sciences, Kagoshima UniversitySakuragaoka Kagoshima Japan
| | - Takuro Kanekura
- Department of DermatologyGraduate School of Medical and Dental Sciences, Kagoshima UniversitySakuragaoka Kagoshima Japan
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57
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Panico A, Paladini F, Pollini M. Development of regenerative and flexible fibroin‐based wound dressings. J Biomed Mater Res B Appl Biomater 2018; 107:7-18. [DOI: 10.1002/jbm.b.34090] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 12/12/2017] [Accepted: 01/28/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Angelica Panico
- Department of Engineering for InnovationUniversity of SalentoLecce Italy
| | - Federica Paladini
- Department of Engineering for InnovationUniversity of SalentoLecce Italy
- Caresilk S.r.l.s., Via Monteroni c/o Technological District DHITECHLecce, Italy
- CNR NANOTEC‐Institute of Nanotechnology c/o Campus EcotekneLecce Italy
| | - Mauro Pollini
- Department of Engineering for InnovationUniversity of SalentoLecce Italy
- Caresilk S.r.l.s., Via Monteroni c/o Technological District DHITECHLecce, Italy
- CNR NANOTEC‐Institute of Nanotechnology c/o Campus EcotekneLecce Italy
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58
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Maghdouri-White Y, Petrova S, Sori N, Polk S, Wriggers H, Ogle R, Ogle R, Francis M. Electrospun silk–collagen scaffolds and BMP-13 for ligament and tendon repair and regeneration. Biomed Phys Eng Express 2018. [DOI: 10.1088/2057-1976/aa9c6f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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59
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Dadras Chomachayi M, Solouk A, Akbari S, Sadeghi D, Mirahmadi F, Mirzadeh H. Electrospun nanofibers comprising of silk fibroin/gelatin for drug delivery applications: Thyme essential oil and doxycycline monohydrate release study. J Biomed Mater Res A 2018; 106:1092-1103. [PMID: 29210169 DOI: 10.1002/jbm.a.36303] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 11/19/2017] [Accepted: 11/27/2017] [Indexed: 12/29/2022]
Abstract
In this study, a nanofibrous electrospun substrate based on the silk fibroin (SF) and gelatin (GT) polymers were prepared and evaluated. The SF/GT blended solutions were prepared with various ratios of GT in formic acid and electrospun to obtain bead-free fibers. Results showed that addition of GT to SF increased nanofiber's diameter, bulk hydrophilicity, surface wettability, mass loss percentage, but decreased Young's modulus, tensile strength, and porosity of the SF/GT mats. According to the obtained results, the mat containing 10% of GT was selected as the optimized mat for further studies and loaded with thyme essential oil (TEO) and doxycycline monohydrate (DCMH) as the antibacterial agents. Release studies showed a burst release of TEO from the mat within the first 3 h, while the DCMH had a sustained release during 48 h. In comparison to the TEO-loaded mat, the DCMH-loaded one showed larger inhibition zones against Staphylococcus aureus and Klebsiella pneumoniae bacteria. Meanwhile, cellular studies using mouse fibroblast L929 cells showed excellent cell-compatibility of TEO- and DCMH-loaded mats. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1092-1103, 2018.
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Affiliation(s)
- Masoud Dadras Chomachayi
- Polymer Engineering and Color Technology Faculty, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Atefeh Solouk
- Biomedical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Somaye Akbari
- Textile Engineering Faculty, Amirkabir University of Technology, (Tehran Polytechnic), Tehran, Iran
| | - Davoud Sadeghi
- Biomedical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Fereshteh Mirahmadi
- Biomedical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.,Department of Oral Cell Biology and Functional Anatomy, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands
| | - Hamid Mirzadeh
- Polymer Engineering and Color Technology Faculty, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
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60
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Ghosh S, Kumar MS, Bal B, Das AP. Application of Bioengineering in Revamping Human Health. Synth Biol (Oxf) 2018. [DOI: 10.1007/978-981-10-8693-9_2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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61
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Silk Fibroin-Based Scaffold for Bone Tissue Engineering. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1077:371-387. [PMID: 30357699 DOI: 10.1007/978-981-13-0947-2_20] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Regeneration of diseased or damaged skeletal tissues is one of the challenge that needs to be solved. Although there have been many bone tissue engineering developed, scaffold-based tissue engineering complement the conventional treatment for large bone by completing biological and functional environment. Among many materials, silk fibroin (SF) is one of the favorable material for applications in bone tissue engineering scaffolding. SF is a fibrous protein mainly extracted from Bombyx mori. and spiders. SF has been used as a biomaterial for bone graft by its unique mechanical properties, controllable biodegradation rate and high biocompatibility. Moreover, SF can be processed using conventional and advanced biofabrication methods to form various scaffold types such as sponges, mats, hydrogels and films. This review discusses about recent application and advancement of SF as a biomaterial.
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62
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TAJIRI H, KUBO H, MURAKAMI T, YOSHIOKA T, HATA T, KAMEDA T, NAKAZAWA CT, TARA S, NAKAZAWA Y. Evaluation as Biomaterials of Silk Fibroin Degummed by Different Method. KOBUNSHI RONBUNSHU 2018. [DOI: 10.1295/koron.2017-0069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hirokazu TAJIRI
- Division of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology
| | - Honami KUBO
- Division of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology
| | - Tomoaki MURAKAMI
- Cooperative Department of Veterinary Medicine, Tokyo University of Agriculture and Technology
| | - Taiyo YOSHIOKA
- Silk Materials Research Unit, National Agriculture and Food Research Organization (NARO)
| | - Tamako HATA
- Silk Materials Research Unit, National Agriculture and Food Research Organization (NARO)
| | - Tsunenori KAMEDA
- Silk Materials Research Unit, National Agriculture and Food Research Organization (NARO)
| | | | - Shuhei TARA
- Department of Cardiovascular Medicine, Nippon Medical School
| | - Yasumoto NAKAZAWA
- Division of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology
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63
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Tuning the structure and performance of silk biomaterials by combining mulberry and non-mulberry silk fibroin. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2017.11.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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64
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The potential of Antheraea pernyi silk for spinal cord repair. Sci Rep 2017; 7:13790. [PMID: 29062079 PMCID: PMC5653809 DOI: 10.1038/s41598-017-14280-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 10/09/2017] [Indexed: 12/24/2022] Open
Abstract
One of the most challenging applications for tissue regeneration is spinal cord damage. There is no cure for this, partly because cavities and scar tissue formed after injury present formidable barriers that must be crossed by axons to restore function. Natural silks are considered increasingly for medical applications because they are biocompatible, biodegradable and in selected cases promote tissue growth. Filaments from wild Antheraea pernyi silkworms can support axon regeneration in peripheral nerve injury. Here we presented evidence that degummed A. pernyi filaments (DAPF) support excellent outgrowth of CNS neurons in vitro by cell attachment to the high density of arginine-glycine-aspartic acid tripeptide present in DAPF. Importantly, DAPF showed stiffness properties that are well suited to spinal cord repair by supporting cell growth mechano-biology. Furthermore, we demonstrated that DAPF induced no activation of microglia, the CNS resident immune cells, either in vitro when exposed to DAPF or in vivo when DAPF were implanted in the cord. In vitro DAPF degraded gradually with a corresponding decrease in tensile properties. We conclude that A. pernyi silk meets the major biochemical and biomaterial criteria for spinal repair, and may have potential as a key component in combinatorial strategies for spinal repair.
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65
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Aykac A, Karanlik B, Sehirli AO. Protective effect of silk fibroin in burn injury in rat model. Gene 2017; 641:287-291. [PMID: 29037999 DOI: 10.1016/j.gene.2017.10.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 09/12/2017] [Accepted: 10/11/2017] [Indexed: 11/16/2022]
Abstract
Activation of pro-inflamatuar pathways play major role in formation of major complications as a result of burns. This study was planned to investigate the protective effect of Silk Fibroin in lung injury caused by burn in the experimental rat model. After rinsing the skin of rats under ether anesthesia, the exposed back region, covers 30% of the total body, was kept in the 90°C water bath for 10s. The control rats were kept in the 25°C water bath for 10s. Immediately after burning process, silk fibroin was administered orally at a dose of 600mg/kg. After 24h following burning from all groups the levels of TNF-α, IL-1β in blood samples and the MDA, GSH and the activity of MPO were determined from taken lung tissues. Moreover, the expression of Bcl-2/Bax, Caspase-3 and Caspase-9 were determined. Significant increase in TNF-α, IL-1β, Casp-3 and Casp-9 levels were observed in the Silk Fibroin-treated burn group (p<0.05) whereas for ratio of Bcl-2/Bax, a significant reduction was observed compared to control group (p<0.05). Increased levels of TNF-α, IL-1β, Caspase-3 and Caspase-9 in Silk Fibroin-treated burn groups were found to be reversed. Silk fibroin can be an effective biomaterial in diminishing burn injury in tissue and apoptosis.
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Affiliation(s)
- Asli Aykac
- Near East University, Faculty of Medicine, Department of Biophysics, Nicosia, Cyprus
| | - Buse Karanlik
- Near East University, Vocational School of Health Sciences, Nicosia, Cyprus.
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66
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Raveendran S, Rochani AK, Maekawa T, Kumar DS. Smart Carriers and Nanohealers: A Nanomedical Insight on Natural Polymers. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E929. [PMID: 28796191 PMCID: PMC5578295 DOI: 10.3390/ma10080929] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 07/24/2017] [Accepted: 07/31/2017] [Indexed: 02/07/2023]
Abstract
Biodegradable polymers are popularly being used in an increasing number of fields in the past few decades. The popularity and favorability of these materials are due to their remarkable properties, enabling a wide range of applications and market requirements to be met. Polymer biodegradable systems are a promising arena of research for targeted and site-specific controlled drug delivery, for developing artificial limbs, 3D porous scaffolds for cellular regeneration or tissue engineering and biosensing applications. Several natural polymers have been identified, blended, functionalized and applied for designing nanoscaffolds and drug carriers as a prerequisite for enumerable bionano technological applications. Apart from these, natural polymers have been well studied and are widely used in material science and industrial fields. The present review explains the prominent features of commonly used natural polymers (polysaccharides and proteins) in various nanomedical applications and reveals the current status of the polymer research in bionanotechnology and science sectors.
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Affiliation(s)
- Sreejith Raveendran
- Bio Nano Electronics Research Centre, Graduate School of Interdisciplinary New Science, Toyo University, Saitama 350-8585, Japan.
| | - Ankit K Rochani
- Bio Nano Electronics Research Centre, Graduate School of Interdisciplinary New Science, Toyo University, Saitama 350-8585, Japan.
| | - Toru Maekawa
- Bio Nano Electronics Research Centre, Graduate School of Interdisciplinary New Science, Toyo University, Saitama 350-8585, Japan.
| | - D Sakthi Kumar
- Bio Nano Electronics Research Centre, Graduate School of Interdisciplinary New Science, Toyo University, Saitama 350-8585, Japan.
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67
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Abdel-Naby W, Cole B, Liu A, Liu J, Wan P, Guaiquil VH, Schreiner R, Infanger D, Lawrence BD, Rosenblatt MI. Silk-Derived Protein Enhances Corneal Epithelial Migration, Adhesion, and Proliferation. Invest Ophthalmol Vis Sci 2017; 58:1425-1433. [PMID: 28257533 PMCID: PMC6022413 DOI: 10.1167/iovs.16-19957] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Purpose The corneal surface is vulnerable to a myriad of traumatic insults including mechanical, chemical, and thermal injuries. The resulting trauma may render the naturally occurring regenerative properties of the cornea incapable of restoring a healthy epithelial surface, and may result in the loss of corneal transparency and vision. Healing of the corneal epithelium requires a complex cascade of biological processes that work to restore the tissue after injury. New therapeutic agents that act on the multiple steps of the corneal wound-healing process would offer a potential for improving patient outcomes. Here, a novel silk fibroin–derived protein (SDP) was studied for potential impacts on wound healing through studying an in vitro model. Methods Solubilized SDP, produced from the Bombyx mori silkworm cocoon, was added to human corneal limbal-epithelial (hCLE) cultures to evaluate the material's effects on epithelial cell migration, proliferation, and adhesion through the use of various scratch wound assays and flow chamber studies. Results Results indicated that the addition of SDP to culture increased hCLE migration rate by over 50%, and produced an approximate 60% increase in cell proliferation. This resulted in a nearly 30% enhancement of in vitro scratch wound closure time. In addition, cultures treated with SDP experienced increased cell-matrix focal adhesion formation by over 95% when compared to controls. Conclusions The addition of SDP to culture media significantly enhanced hCLE cell sheet migration, proliferation, and attachment when compared to untreated controls, and indicates SDP's potential utility as an ophthalmic therapeutic agent.
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Affiliation(s)
- Waleed Abdel-Naby
- Department of Biomedical Engineering, Cornell University, Ithaca, New York, United States 2Department of Ophthalmology, Weill Cornell Medical College, New York, New York, United States
| | - Brigette Cole
- Department of Ophthalmology, Weill Cornell Medical College, New York, New York, United States
| | - Aihong Liu
- Department of Ophthalmology, Weill Cornell Medical College, New York, New York, United States
| | - Jingbo Liu
- Department of Ophthalmology, Weill Cornell Medical College, New York, New York, United States
| | - Pengxia Wan
- Department of Ophthalmology, Weill Cornell Medical College, New York, New York, United States
| | - Victor H Guaiquil
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois, United States
| | - Ryan Schreiner
- Department of Ophthalmology, Weill Cornell Medical College, New York, New York, United States
| | - David Infanger
- Silk Technologies, Ltd., Plymouth, Minnesota, United States
| | | | - Mark I Rosenblatt
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois, United States
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68
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Ding X, Yang G, Zhang W, Li G, Lin S, Kaplan DL, Jiang X. Increased stem cells delivered using a silk gel/scaffold complex for enhanced bone regeneration. Sci Rep 2017; 7:2175. [PMID: 28526887 PMCID: PMC5438390 DOI: 10.1038/s41598-017-02053-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 04/03/2017] [Indexed: 12/20/2022] Open
Abstract
The low in vivo survival rate of scaffold-seeded cells is still a challenge in stem cell-based bone regeneration. This study seeks to use a silk hydrogel to deliver more stem cells into a bone defect area and prolong the viability of these cells after implantation. Rat bone marrow stem cells were mingled with silk hydrogels at the concentrations of 1.0 × 105/mL, 1.0 × 106/mL and 1.0 × 107/mL before gelation, added dropwise to a silk scaffold and applied to a rat calvarial defect. A cell tracing experiment was included to observe the preservation of cell viability and function. The results show that the hydrogel with 1.0 × 107/mL stem cells exhibited the best osteogenic effect both in vitro and in vivo. The cell-tracing experiment shows that cells in the 1.0 × 107 group still survive and actively participate in new bone formation 8 weeks after implantation. The strategy of pre-mingling stem cells with the hydrogel had the effect of delivering more stem cells for bone engineering while preserving the viability and functions of these cells in vivo.
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Affiliation(s)
- Xun Ding
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.,Oral Bioengineering and regenerative medicine Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Guangzheng Yang
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Wenjie Zhang
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.,Oral Bioengineering and regenerative medicine Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Guanglong Li
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.,Oral Bioengineering and regenerative medicine Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Shuxian Lin
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.,Oral Bioengineering and regenerative medicine Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
| | - David L Kaplan
- Department of Biomedical Engineering, School of Engineering, Tufts University, 4 Colby St, Medford, MA, 02155, USA
| | - Xinquan Jiang
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China. .,Oral Bioengineering and regenerative medicine Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China.
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69
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Zhang W, Chen L, Chen J, Wang L, Gui X, Ran J, Xu G, Zhao H, Zeng M, Ji J, Qian L, Zhou J, Ouyang H, Zou X. Silk Fibroin Biomaterial Shows Safe and Effective Wound Healing in Animal Models and a Randomized Controlled Clinical Trial. Adv Healthc Mater 2017; 6. [PMID: 28337854 DOI: 10.1002/adhm.201700121] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 02/20/2017] [Indexed: 01/07/2023]
Abstract
Due to its excellent biological and mechanical properties, silk fibroin has been intensively explored for tissue engineering and regenerative medicine applications. However, lack of translational evidence has hampered its clinical application for tissue repair. Here a silk fibroin film is developed and its translational potential is investigated for skin repair by performing comprehensive preclinical and clinical studies to fully evaluate its safety and effectiveness. The silk fibroin film fabricated using all green chemistry approaches demonstrates remarkable characteristics, including transmittance, fluid handling capacity, moisture vapor permeability, waterproofness, bacterial barrier properties, and biocompatibility. In vivo rabbit full-thickness skin defect study shows that the silk fibroin film effectively reduces the average wound healing time with better skin regeneration compared with the commercial wound dressings. Subsequent assessment in porcine model confirms its long-term safety and effectiveness for full-thickness skin defects. Finally, a randomized single-blind parallel controlled clinical trial with 71 patients shows that the silk fibroin film significantly reduces the time to wound healing and incidence of adverse events compared to commercial dressing. Therefore, the study provides systematic preclinical and clinical evidence that the silk fibroin film promotes wound healing thereby establishing a foundation towards its application for skin repair and regeneration in the clinic.
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Affiliation(s)
- Wei Zhang
- Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine; School of Medicine; Zhejiang University; Hangzhou 310058 China
| | - Longkun Chen
- Zhejiang Provincial Key Research Institute of Medical Materials and Tissue Engineering; Hangzhou 310000 China
| | - Jialin Chen
- Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine; School of Medicine; Zhejiang University; Hangzhou 310058 China
| | - Lingshuang Wang
- Zhejiang Provincial Key Research Institute of Medical Materials and Tissue Engineering; Hangzhou 310000 China
| | - Xuexian Gui
- Zhejiang Provincial Key Research Institute of Medical Materials and Tissue Engineering; Hangzhou 310000 China
| | - Jisheng Ran
- Department of Orthopaedics; The Second Affiliated Hospital; Zhejiang University; Hangzhou 310052 China
| | - Guowei Xu
- Zhejiang Provincial Key Research Institute of Medical Materials and Tissue Engineering; Hangzhou 310000 China
| | - Hongshi Zhao
- Zhejiang Provincial Key Research Institute of Medical Materials and Tissue Engineering; Hangzhou 310000 China
| | - Mengfeng Zeng
- Zhejiang Provincial Key Research Institute of Medical Materials and Tissue Engineering; Hangzhou 310000 China
| | - Junfeng Ji
- Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine; School of Medicine; Zhejiang University; Hangzhou 310058 China
| | - Li Qian
- Department of Burn and Plastic Surgery; The Second Xiangya Hospital; Central South University; Changsha 410011 China
| | - Jianda Zhou
- Department of Burn and Plastic Surgery; The Third Xiangya Hospital; Central South University; Changsha 410083 China
| | - Hongwei Ouyang
- Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine; School of Medicine; Zhejiang University; Hangzhou 310058 China
| | - Xiaohui Zou
- Clinical Research Center; The First Affiliated Hospital; School of Medicine; Zhejiang University; Hangzhou 310003 China
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70
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Celikkin N, Rinoldi C, Costantini M, Trombetta M, Rainer A, Święszkowski W. Naturally derived proteins and glycosaminoglycan scaffolds for tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:1277-1299. [PMID: 28575966 DOI: 10.1016/j.msec.2017.04.016] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 04/02/2017] [Accepted: 04/03/2017] [Indexed: 12/25/2022]
Abstract
Tissue engineering (TE) aims to mimic the complex environment where organogenesis takes place using advanced materials to recapitulate the tissue niche. Cells, three-dimensional scaffolds and signaling factors are the three main and essential components of TE. Over the years, materials and processes have become more and more sophisticated, allowing researchers to precisely tailor the final chemical, mechanical, structural and biological features of the designed scaffolds. In this review, we will pose the attention on two specific classes of naturally derived polymers: fibrous proteins and glycosaminoglycans (GAGs). These materials hold great promise for advances in the field of regenerative medicine as i) they generally undergo a fast remodeling in vivo favoring neovascularization and functional cells organization and ii) they elicit a negligible immune reaction preventing severe inflammatory response, both representing critical requirements for a successful integration of engineered scaffolds with the host tissue. We will discuss the recent achievements attained in the field of regenerative medicine by using proteins and GAGs, their merits and disadvantages and the ongoing challenges to move the current concepts to practical clinical application.
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Affiliation(s)
- Nehar Celikkin
- Warsaw University of Technology, Faculty of Material Science and Engineering, 141 Woloska str., 02-507 Warsaw, Poland
| | - Chiara Rinoldi
- Warsaw University of Technology, Faculty of Material Science and Engineering, 141 Woloska str., 02-507 Warsaw, Poland
| | - Marco Costantini
- Tissue Engineering Unit, Department of Engineering, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy
| | - Marcella Trombetta
- Tissue Engineering Unit, Department of Engineering, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy
| | - Alberto Rainer
- Tissue Engineering Unit, Department of Engineering, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 21, 00128 Rome, Italy
| | - Wojciech Święszkowski
- Warsaw University of Technology, Faculty of Material Science and Engineering, 141 Woloska str., 02-507 Warsaw, Poland.
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71
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Tseng P, Zhao S, Golding A, Applegate MB, Mitropoulos AN, Kaplan DL, Omenetto FG. Evaluation of Silk Inverse Opals for "Smart" Tissue Culture. ACS OMEGA 2017; 2:470-477. [PMID: 30023608 PMCID: PMC6044746 DOI: 10.1021/acsomega.6b00320] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 12/27/2016] [Indexed: 05/20/2023]
Abstract
Visually tracking the subtle aspects of biological systems in real time during tissue culture remains challenging. Herein, we demonstrate the use of bioactive, cytocompatible, and biodegradable inverse opals from silk as a multifunctional substrate to transduce both the optical information and cells during tissue culture. We show that these substrates can visually track substrate degradation in various proteases during tissue digestion and protein deposition during the growth of mesenchymal stem cells. Uniquely, these substrates can be integrated in multiple steps of tissue culture for simple-to-use, visual, and quantitative detectors of bioactivity. These substrates can also be doped, demonstrated here with gold nanoparticles, to allow additional control of cell functions.
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Affiliation(s)
- Peter Tseng
- Silklab, Tufts University, 200 Boston Avenue, Suite 4875, Medford, Massachusetts 02155, United States
| | - Siwei Zhao
- Department of Biomedical Engineering, Department of Electrical and Computer
Engineering, Department of Physics, and Department of Chemical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Annie Golding
- Department of Biomedical Engineering, Department of Electrical and Computer
Engineering, Department of Physics, and Department of Chemical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Matthew B. Applegate
- Silklab, Tufts University, 200 Boston Avenue, Suite 4875, Medford, Massachusetts 02155, United States
| | - Alexander N. Mitropoulos
- Department of Biomedical Engineering, Department of Electrical and Computer
Engineering, Department of Physics, and Department of Chemical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - David L. Kaplan
- Silklab, Tufts University, 200 Boston Avenue, Suite 4875, Medford, Massachusetts 02155, United States
- Department of Biomedical Engineering, Department of Electrical and Computer
Engineering, Department of Physics, and Department of Chemical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Fiorenzo G. Omenetto
- Silklab, Tufts University, 200 Boston Avenue, Suite 4875, Medford, Massachusetts 02155, United States
- Department of Biomedical Engineering, Department of Electrical and Computer
Engineering, Department of Physics, and Department of Chemical Engineering, Tufts University, Medford, Massachusetts 02155, United States
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72
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Wang J, Yin Z, Xue X, Kundu SC, Mo X, Lu S. Natural Non-Mulberry Silk Nanoparticles for Potential-Controlled Drug Release. Int J Mol Sci 2016; 17:ijms17122012. [PMID: 27916946 PMCID: PMC5187812 DOI: 10.3390/ijms17122012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 11/25/2016] [Accepted: 11/26/2016] [Indexed: 01/31/2023] Open
Abstract
Natural silk protein nanoparticles are a promising biomaterial for drug delivery due to their pleiotropic properties, including biocompatibility, high bioavailability, and biodegradability. Chinese oak tasar Antheraea pernyi silk fibroin (ApF) nanoparticles are easily obtained using cations as reagents under mild conditions. The mild conditions are potentially advantageous for the encapsulation of sensitive drugs and therapeutic molecules. In the present study, silk fibroin protein nanoparticles are loaded with differently-charged small-molecule drugs, such as doxorubicin hydrochloride, ibuprofen, and ibuprofen-Na, by simple absorption based on electrostatic interactions. The structure, morphology and biocompatibility of the silk nanoparticles in vitro are investigated. In vitro release of the drugs from the nanoparticles depends on charge-charge interactions between the drugs and the nanoparticles. The release behavior of the compounds from the nanoparticles demonstrates that positively-charged molecules are released in a more prolonged or sustained manner. Cell viability studies with L929 demonstrated that the ApF nanoparticles significantly promoted cell growth. The results suggest that Chinese oak tasar Antheraea pernyi silk fibroin nanoparticles can be used as an alternative matrix for drug carrying and controlled release in diverse biomedical applications.
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Affiliation(s)
- Juan Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
- College of Chemistry and Chemical Engineering and Biological Engineering, Donghua University, Shanghai 201620, China.
| | - Zhuping Yin
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| | - Xiang Xue
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| | - Subhas C Kundu
- Department of Biotechnology, Indian Institute of Technology Kharagpur, West Bengal 721302, India.
| | - Xiumei Mo
- College of Chemistry and Chemical Engineering and Biological Engineering, Donghua University, Shanghai 201620, China.
| | - Shenzhou Lu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
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73
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Shao W, He J, Wang Q, Cui S, Ding B. Biomineralized Poly(l-lactic-co-glycolic acid)/Graphene Oxide/Tussah Silk Fibroin Nanofiber Scaffolds with Multiple Orthogonal Layers Enhance Osteoblastic Differentiation of Mesenchymal Stem Cells. ACS Biomater Sci Eng 2016; 3:1370-1380. [DOI: 10.1021/acsbiomaterials.6b00533] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Weili Shao
- Henan
Provincial Key Laboratory of Functional Textile Materials, Zhongyuan University of Technology, 450007 Zhengzhou, China
- Collaborative Innovation Center of Textile and Garment Industry, Henan Province, Zhengzhou 450007, China
| | - Jianxin He
- Henan
Provincial Key Laboratory of Functional Textile Materials, Zhongyuan University of Technology, 450007 Zhengzhou, China
- Collaborative Innovation Center of Textile and Garment Industry, Henan Province, Zhengzhou 450007, China
| | - Qian Wang
- Henan
Provincial Key Laboratory of Functional Textile Materials, Zhongyuan University of Technology, 450007 Zhengzhou, China
- Collaborative Innovation Center of Textile and Garment Industry, Henan Province, Zhengzhou 450007, China
| | - Shizhong Cui
- Henan
Provincial Key Laboratory of Functional Textile Materials, Zhongyuan University of Technology, 450007 Zhengzhou, China
- Collaborative Innovation Center of Textile and Garment Industry, Henan Province, Zhengzhou 450007, China
| | - Bin Ding
- Henan
Provincial Key Laboratory of Functional Textile Materials, Zhongyuan University of Technology, 450007 Zhengzhou, China
- Collaborative Innovation Center of Textile and Garment Industry, Henan Province, Zhengzhou 450007, China
- Nanomaterials
Research Center, Modern Textile Institute, Donghua University, Shanghai 200051, China
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74
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Compaan AM, Christensen K, Huang Y. Inkjet Bioprinting of 3D Silk Fibroin Cellular Constructs Using Sacrificial Alginate. ACS Biomater Sci Eng 2016; 3:1519-1526. [DOI: 10.1021/acsbiomaterials.6b00432] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Ashley M. Compaan
- Department
of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Kyle Christensen
- Department of
Mechanical and Aerospace
Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Yong Huang
- Department
of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
- Department of
Mechanical and Aerospace
Engineering, University of Florida, Gainesville, Florida 32611, United States
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75
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Suzuki S, Chirila TV, Edwards GA. Characterization of Bombyx mori and Antheraea pernyi silk fibroins and their blends as potential biomaterials. Prog Biomater 2016; 5:193-198. [PMID: 27995586 PMCID: PMC5301461 DOI: 10.1007/s40204-016-0057-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 10/17/2016] [Indexed: 01/26/2023] Open
Abstract
Fibroin proteins isolated from the cocoons of certain silk-producing insects have been widely investigated as biomaterials for tissue engineering applications. In this study, fibroins were isolated from cocoons of domesticated Bombyx mori (BM) and wild Antheraea pernyi (AP) silkworms following a degumming process. The object of this study was to obtain an assessment on certain properties of these fibroins in order that a concept might be had regarding the feasibility of using their blends as biomaterials. Membranes, 10–20 μm thick, which are water-insoluble, flexible and transparent, were prepared from pure fibroins and from their blends, and subjected to water vapor annealing in vacuum, with the aim of providing materials sufficiently strong for manipulation. The resulting materials were characterized by electrophoretic analysis and infrared spectrometry. The tensile properties of the membranes were measured and correlated with the results of infrared analysis. At low concentrations of any of the two fibroins, the mechanical characteristics of the membranes appeared to be adequate for surgical manipulation, as the modulus and strength surpassed those of BM silk fibroin alone. It was noticed that high concentrations of AP silk fibroin led to a significant reduction in the elasticity of membranes.
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Affiliation(s)
- Shuko Suzuki
- Queensland Eye Institute, South Brisbane, QLD, 4101, Australia
| | - Traian V Chirila
- Queensland Eye Institute, South Brisbane, QLD, 4101, Australia. .,Science and Engineering Faculty, Queensland University of Technology (QUT), Brisbane, QLD, 4001, Australia. .,Faculty of Medicine and Biomedical Sciences, The University of Queensland (UQ), Herston, QLD, 4029, Australia. .,Australian Institute of Bioengineering and Nanotechnology (AIBN), The University of Queensland (UQ), St Lucia, QLD, 4072, Australia. .,Faculty of Science, The University of Western Australia (UWA), Crawley, WA, 6009, Australia.
| | - Grant A Edwards
- Australian Institute of Bioengineering and Nanotechnology (AIBN), The University of Queensland (UQ), St Lucia, QLD, 4072, Australia
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76
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Shivananda CS, Rao BL, Pasha A, Sangappa Y. Synthesis of Silver Nanoparticles UsingBombyxmoriSilk Fibroin and Their Antibacterial Activity. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1757-899x/149/1/012175] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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77
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Li X, Zhang Q, Ye D, Zhang J, Guo Y, You R, Yan S, Li M, Qu J. Fabrication and characterization of electrospun PCL/Antheraea pernyisilk fibroin nanofibrous scaffolds. POLYM ENG SCI 2016. [DOI: 10.1002/pen.24402] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Xiufang Li
- National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, College of Textile Science and Engineering; Wuhan Textile University; Wuhan 430200 China
| | - Qiang Zhang
- National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, College of Textile Science and Engineering; Wuhan Textile University; Wuhan 430200 China
| | - Dezhan Ye
- National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, College of Textile Science and Engineering; Wuhan Textile University; Wuhan 430200 China
| | - Jie Zhang
- National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, College of Textile Science and Engineering; Wuhan Textile University; Wuhan 430200 China
| | - Yuhang Guo
- National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, College of Textile Science and Engineering; Wuhan Textile University; Wuhan 430200 China
| | - Renchuan You
- National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, College of Textile Science and Engineering; Wuhan Textile University; Wuhan 430200 China
| | - Shuqin Yan
- National Engineering Laboratory for Advanced Yarn and Fabric Formation and Clean Production, College of Textile Science and Engineering; Wuhan Textile University; Wuhan 430200 China
| | - Mingzhong Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering; Soochow University; No. 199 Ren'ai Road, Industrial Park Suzhou 215123 China
| | - Jing Qu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering; Soochow University; No. 199 Ren'ai Road, Industrial Park Suzhou 215123 China
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78
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Ren Y, Sun X, Cui F, Wei Y, Cheng Z, Kong X. Preparation and Characterization of Antheraea pernyi Silk Fibroin Based Nanohydroxyapatite Composites. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911507082407] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In the present study, Antheraea pernyi silk fibroin (Ap-SF) is employed to regulate the mineralization of hydroxyapatite (HAp) nanocrystals. Calcium phosphate crystals precipitate in the aqueous solution of regenerated Ap-SF at pH 7.4 and room temperature. The samples are charaterized with X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). Based on the XRD results, the inorganic phase in the mineralized Ap-SF composites is HAp as small particles with low crystallinity. The FTIR analysis reveals that the HAp crystals are carbonate-substituted HAp and compounded with Ap-SF. The TEM images show mineralized nanofibrils in the composites as rod-like shapes 4—5 nm in diameter. Electron diffraction (SAED) patterns of selected areas of the composites exhibit polycrystalline rings that are ascribed to HAp. SEM images show mineralized Ap-SF composites with several mineralized rods 49—74 nm in diameter.
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Affiliation(s)
- Y.J. Ren
- Biomaterials Laboratory, Department of Material Science and Engineering Tsinghua University, Beijing 100084, China
| | - X.D. Sun
- Biomaterials Laboratory, Department of Material Science and Engineering Tsinghua University, Beijing 100084, China
| | - F.Z. Cui
- Biomaterials Laboratory, Department of Material Science and Engineering Tsinghua University, Beijing 100084, China,
| | - Y.T. Wei
- Biomaterials Laboratory, Department of Material Science and Engineering Tsinghua University, Beijing 100084, China
| | - Z.J. Cheng
- Biomaterials Laboratory, Department of Material Science and Engineering Tsinghua University, Beijing 100084, China
| | - X.D. Kong
- Biomaterials Laboratory, Department of Material Science and Engineering Tsinghua University, Beijing 100084, China
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79
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Fabrication and characterization of hydrocolloid dressing with silk fibroin nanoparticles for wound healing. Tissue Eng Regen Med 2016; 13:218-226. [PMID: 30603402 DOI: 10.1007/s13770-016-9058-5] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 09/29/2015] [Accepted: 10/08/2015] [Indexed: 10/21/2022] Open
Abstract
Hydrocolloid dressings have been developed for many types of wound healing. In particular, dressing is a critical component in the successful recover of burn injuries, which causes a great number of people to not only suffer from physical but also psychological and economic anguish each year. Additionally, silk fibroin is the safest material for tissue engineering due to biocompatibility. In this study, we fabricated hydrocolloid dressings incorporating silk fibroin nanoparticles to enhance the efficacy of hydrocolloid dressing and then use this silk fibroin nanoparticle hydrocolloid dressing (SFNHD) in animal models to treat burn wounds. The structures and properties of SFNHD were characterized using tensile strength and Cell Counting Kit-8 assay. The results indicated the structural stability and the cellular biocompatibility of the hydrocolloid dressing suggesting that SFNHD can be applied to the treatment of wounds. To demonstrate the capacity of a silk fibroin hydrocolloid dressing to treat burn wounds, we compared SFNHD to gauze and Neoderm®, a commercially available dressing. This study clearly demonstrated accelerated wound healing with greater wound structural integrity and minimal wound size after treatment with SFNHD. These observations indicate that SFNHD may be an improvement upon current standard dressings such as Gauze and Neoderm® for burn wounds.
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80
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Shao W, He J, Sang F, Wang Q, Chen L, Cui S, Ding B. Enhanced bone formation in electrospun poly(l-lactic-co-glycolic acid)–tussah silk fibroin ultrafine nanofiber scaffolds incorporated with graphene oxide. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 62:823-34. [DOI: 10.1016/j.msec.2016.01.078] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 01/22/2016] [Accepted: 01/27/2016] [Indexed: 11/25/2022]
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81
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Yu Y, Hu Y, Li X, Liu Y, Li M, Yang J, Sheng W. Spermine-modified Antheraea pernyi silk fibroin as a gene delivery carrier. Int J Nanomedicine 2016; 11:1013-23. [PMID: 27042056 PMCID: PMC4798211 DOI: 10.2147/ijn.s82023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The development of a novel cationized polymer used as a gene delivery carrier that can conveniently and effectively transfect cells resulting in a stably expressed target gene remains a challenge. Antheraea pernyi silk fibroin (ASF) is a cytocompatible and biodegradable natural polymer, and it possesses Arg-Gly-Asp sequences but a negative charge. In order to render ASF amenable to packaging plasmid DNA (pDNA), spermine was used to modify ASF to synthesize cationized ASF (CASF), which was used as a gene delivery carrier. CASF was characterized using trinitrobenzene sulfonic acid assay, the zeta potential determination, and a Fourier transform infrared analysis, and the results of these characterizations indicated that the -NH2 in spermine effectively reacts with the -COOH in the side chains of ASF. Spermine grafted to the side chains of ASF resulted in the conversion of the negative charge of ASF to a positive charge. CASF packaged pDNA and formed CASF/pDNA complexes, which exhibited spherical morphology with average particle sizes of 215-281 nm and zeta potential of approximately +3.0 mV to +3.2 mV. The results of the MTT assay, confocal laser scanning microscopy, and flow cytometry analysis in a human endothelial cell line revealed that CASF/pDNA complexes exhibited lower cytotoxicity and higher transfection efficiency compared to the pDNA complexes of polyethyleneimine. These results indicate that our synthesized CASF, a cationized polymer, is a potential gene delivery carrier with the advantages of biodegradability and low cytotoxicity.
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Affiliation(s)
- Yanni Yu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, People’s Republic of China
| | - Yongpei Hu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, People’s Republic of China
| | - Xiufang Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, People’s Republic of China
| | - Yu Liu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, People’s Republic of China
| | - Mingzhong Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, People’s Republic of China
| | - Jicheng Yang
- Cell and Molecular Biology Institute, College of Medicine, Soochow University, Suzhou, People’s Republic of China
| | - Weihua Sheng
- Cell and Molecular Biology Institute, College of Medicine, Soochow University, Suzhou, People’s Republic of China
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82
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Comparison of eri and tasar silk fibroin scaffolds for biomedical applications. Prog Biomater 2016; 5:81-91. [PMID: 27525199 PMCID: PMC4965488 DOI: 10.1007/s40204-016-0047-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 02/19/2016] [Indexed: 02/01/2023] Open
Abstract
The cultivated silk, mulberry, is being used as biomaterial in different forms. Eri, tasar and muga are some of the known wild silk varieties. The studies on biomedical applications of electrospun mats produced from these wild silks are limited though few studies on eri silk are available. In this work, comparison was made between eri and tasar silk fibroin scaffolds for biomedical application. The scaffolds were produced from eri silk fibroin (ESF) and tasar silk fibroin (TSF) by electrospinning method and they were treated with ethanol to improve dimensional stability. Ethanol treatment increased the crystallinity% of both ESF and TSF scaffolds. The crystallinity percentage of the ESF and TSF scaffolds was found to be 46.7 and 42.8 % respectively. Thermal stability was higher for ESF than that of TSF scaffold. The hemolytic % of ESF and TSF scaffolds was found to be 1.3 and 7.7 % respectively. The platelet adhesion on the surface of ESF scaffold was lower than that found on TSF scaffold. Better fibroblast cell attachment, binding and spreading was found on the ESF scaffold. The cell viability on ESF scaffold was 83.78 % and in TSF was 78.01 % for 48 h. The results showed that ESF electrospun scaffold can be considered as a better biomaterial for biomedical applications compared to that of TSF scaffold.
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83
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Plowright R, Dinjaski N, Zhou S, Belton DJ, Kaplan DL, Perry CC. Influence of silk-silica fusion protein design on silica condensation in vitro and cellular calcification. RSC Adv 2016; 6:21776-21788. [PMID: 26989487 DOI: 10.1039/c6ra03706b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Biomaterial design via genetic engineering can be utilized for the rational functionalization of proteins to promote biomaterial integration and tissue regeneration. Spider silk has been extensively studied for its biocompatibility, biodegradability and extraordinary material properties. As a protein-based biomaterial, recombinant DNA derived derivatives of spider silks have been modified with biomineralization domains which lead to silica deposition and potentially accelerated bone regeneration. However, the influence of the location of the R5 (SSKKSGSYSGSKGSKRRIL) silicifying domain fused with the spider silk protein sequence on the biosilicification process remains to be determined. Here we designed two silk-R5 fusion proteins that differed in the location of the R5 peptide, C- vs. N-terminus, where the spider silk domain consisted of a 15mer repeat of a 33 amino acid consensus sequence of the major ampullate dragline Spidroin 1 from Nephila clavipes (SGRGGLGGQG AGAAAAAGGA GQGGYGGLGSQGT). The chemical, physical and silica deposition properties of these recombinant proteins were assessed and compared to a silk 15mer control without the R5 present. The location of the R5 peptide did not have a significant effect on wettability and surface energies, while the C-terminal location of the R5 promoted more controlled silica precipitation, suggesting differences in protein folding and possibly different access to charged amino acids that drive the silicification process. Further, cell compatibility in vitro, as well as the ability to promote human bone marrow derived mesenchymal stem cell (hMSC) differentiation were demonstrated for both variants of the fusion proteins.
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Affiliation(s)
- Robyn Plowright
- Biomolecular and Materials Interface Research Group, Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham, UK NG11 8NS
| | - Nina Dinjaski
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, Massachusetts, 02155, United States
| | - Shun Zhou
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, Massachusetts, 02155, United States
| | - David J Belton
- Biomolecular and Materials Interface Research Group, Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham, UK NG11 8NS
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, Massachusetts, 02155, United States
| | - Carole C Perry
- Biomolecular and Materials Interface Research Group, Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham, UK NG11 8NS
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84
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Bioengineered silk scaffolds in 3D tissue modeling with focus on mammary tissues. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:1168-1180. [DOI: 10.1016/j.msec.2015.10.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 09/04/2015] [Accepted: 10/02/2015] [Indexed: 02/07/2023]
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85
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Kapoor S, Kundu SC. Silk protein-based hydrogels: Promising advanced materials for biomedical applications. Acta Biomater 2016; 31:17-32. [PMID: 26602821 DOI: 10.1016/j.actbio.2015.11.034] [Citation(s) in RCA: 274] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 11/08/2015] [Accepted: 11/17/2015] [Indexed: 01/20/2023]
Abstract
Hydrogels are a class of advanced material forms that closely mimic properties of the soft biological tissues. Several polymers have been explored for preparing hydrogels with structural and functional features resembling that of the extracellular matrix. Favourable material properties, biocompatibility and easy processing of silk protein fibers into several forms make it a suitable material for biomedical applications. Hydrogels made from silk proteins have shown a potential in overcoming limitations of hydrogels prepared from conventional polymers. A great deal of effort has been made to control the properties and to integrate novel topographical and functional characteristics in the hydrogel composed from silk proteins. This review provides overview of the advances in silk protein-based hydrogels with a primary emphasis on hydrogels of fibroin. It describes the approaches used to fabricate fibroin hydrogels. Attempts to improve the existing properties or to incorporate new features in the hydrogels by making composites and by improving fibroin properties by genetic engineering approaches are also described. Applications of the fibroin hydrogels in the realms of tissue engineering and controlled release are reviewed and their future potentials are discussed. STATEMENT OF SIGNIFICANCE This review describes the potentiality of silk fibroin hydrogel. Silk Fibroin has been widely recognized as an interesting biomaterial. Due to its properties including high mechanical strength and excellent biocompatibility, it has gained wide attention. Several groups are exploring silk-based materials including films, hydrogels, nanofibers and nanoparticles for different biomedical applications. Although there is a good amount of literature available on general properties and applications of silk based biomaterials, there is an inadequacy of extensive review articles that specifically focus on silk based hydrogels. Silk-based hydrogels have a strong potential to be utilized in biomedical applications. Our work is an effort to highlight the research that has been done in the area of silk-based hydrogels. It aims to provide an overview of the advances that have been made and the future course available. It will provide an overview of the silk-based hydrogels as well as may direct the readers to the specific areas of application.
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86
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Melke J, Midha S, Ghosh S, Ito K, Hofmann S. Silk fibroin as biomaterial for bone tissue engineering. Acta Biomater 2016; 31:1-16. [PMID: 26360593 DOI: 10.1016/j.actbio.2015.09.005] [Citation(s) in RCA: 456] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 08/24/2015] [Accepted: 09/06/2015] [Indexed: 01/08/2023]
Abstract
Silk fibroin (SF) is a fibrous protein which is produced mainly by silkworms and spiders. Its unique mechanical properties, tunable biodegradation rate and the ability to support the differentiation of mesenchymal stem cells along the osteogenic lineage, have made SF a favorable scaffold material for bone tissue engineering. SF can be processed into various scaffold forms, combined synergistically with other biomaterials to form composites and chemically modified, which provides an impressive toolbox and allows SF scaffolds to be tailored to specific applications. This review discusses and summarizes recent advancements in processing SF, focusing on different fabrication and functionalization methods and their application to grow bone tissue in vitro and in vivo. Potential areas for future research, current challenges, uncertainties and gaps in knowledge are highlighted. STATEMENT OF SIGNIFICANCE Silk fibroin is a natural biomaterial with remarkable biomedical and mechanical properties which make it favorable for a broad range of bone tissue engineering applications. It can be processed into different scaffold forms, combined synergistically with other biomaterials to form composites and chemically modified which provides a unique toolbox and allows silk fibroin scaffolds to be tailored to specific applications. This review discusses and summarizes recent advancements in processing silk fibroin, focusing on different fabrication and functionalization methods and their application to grow bone tissue in vitro and in vivo. Potential areas for future research, current challenges, uncertainties and gaps in knowledge are highlighted.
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87
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Shao W, He J, Sang F, Ding B, Chen L, Cui S, Li K, Han Q, Tan W. Coaxial electrospun aligned tussah silk fibroin nanostructured fiber scaffolds embedded with hydroxyapatite–tussah silk fibroin nanoparticles for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:342-51. [DOI: 10.1016/j.msec.2015.08.046] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 07/23/2015] [Accepted: 08/25/2015] [Indexed: 01/13/2023]
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88
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Wu Z, Huang Z, Yin G, Wang L, Gao F. Fabrication of Gd/Eu-codoped SmPO4 nanorods for dual-modal magnetic resonance and bio-optical imaging. J Colloid Interface Sci 2015; 466:1-11. [PMID: 26692538 DOI: 10.1016/j.jcis.2015.10.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 10/18/2015] [Accepted: 10/20/2015] [Indexed: 02/05/2023]
Abstract
Ln-based complexes can be used as T1-enhanced contrast agents of magnetic resonance (MR) imaging in clinical field. Herein, we present a facile and feasible biomineralization process to fabricate Gd/Eu-codoped SmPO4 nanorods (NRs) with silk fibroin (SF) peptides (codoped SF-NRs) as T1-enhanced contrast agents, which possess paramagnetic property, photoluminescence (PL), better cyto-/tissue-compatibility and longer half-life in blood due to SF coating on their surface. Their bio-distributions in TB-N mice via tail-vein injection indicated that, although SF-NRs could be safely cleared away through renal and fecal excretion, SF-NRs easily permeated and aggregated in tumors. The results of in vitro MR imaging demonstrate that the longitudinal relaxivity r1 value of codoped SF-NRs (0.31 Sm-Gd mM(-1) s(-1)) is not only significantly higher than those of Gd-doped and Eu-doped SmPO4 SF-NRs, but also higher than those of codoped pure NRs. The tests of in vivo T1 weighted MR imaging via intro-tumor injection and tail-vein injection confirm that, compared to the pure NRs, the codoped SF-NRs exhibited higher positive signal-enhancement ability. Furthermore, the better luminescence imaging of living cells under the fluorescence microscope (94% stronger than that of the NRs without SF). A formation mechanism of codoped SF-NRs is proposed, to explain the synergistic effect of Gd/Eu codoping and SF coating on their enhanced bio-compatibility, half-life in blood, T1-weighted MR imaging and PL imaging.
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Affiliation(s)
- Zhi Wu
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, People's Republic of China
| | - Zhongbing Huang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, People's Republic of China.
| | - Guangfu Yin
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, People's Republic of China
| | - Lei Wang
- Molecular Imaging Center, Department of Radiology, West China Hospital of Sichuan University, No. 2, 4th Keyuan Road, Chengdu 610093, China
| | - Fabao Gao
- Molecular Imaging Center, Department of Radiology, West China Hospital of Sichuan University, No. 2, 4th Keyuan Road, Chengdu 610093, China.
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89
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Yigit S, Dinjaski N, Kaplan DL. Fibrous proteins: At the crossroads of genetic engineering and biotechnological applications. Biotechnol Bioeng 2015; 113:913-29. [PMID: 26332660 DOI: 10.1002/bit.25820] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Revised: 07/27/2015] [Accepted: 08/25/2015] [Indexed: 12/30/2022]
Abstract
Fibrous proteins, such as silk, elastin and collagen are finding broad impact in biomaterial systems for a range of biomedical and industrial applications. Some of the key advantages of biosynthetic fibrous proteins compared to synthetic polymers include the tailorability of sequence, protein size, degradation pattern, and mechanical properties. Recombinant DNA production and precise control over genetic sequence of these proteins allows expansion and fine tuning of material properties to meet the needs for specific applications. We review current approaches in the design, cloning, and expression of fibrous proteins, with a focus on strategies utilized to meet the challenges of repetitive fibrous protein production. We discuss recent advances in understanding the fundamental basis of structure-function relationships and the designs that foster fibrous protein self-assembly towards predictable architectures and properties for a range of applications. We highlight the potential of functionalization through genetic engineering to design fibrous protein systems for biotechnological and biomedical applications.
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Affiliation(s)
- Sezin Yigit
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155.,Department of Chemistry, Tufts University, Somerville, Massachusetts, 02145
| | - Nina Dinjaski
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155.,Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155.
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90
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Numata K, Sato R, Yazawa K, Hikima T, Masunaga H. Crystal structure and physical properties of Antheraea yamamai silk fibers: Long poly(alanine) sequences are partially in the crystalline region. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.09.025] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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91
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Kazemimostaghim M, Rajkhowa R, Wang X. Drug loading and release studies for milled silk particles of different sizes. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2015.05.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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92
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Zheng Z, Liu M, Guo S, Wu J, Lu D, Li G, Liu S, Wang X, Kaplan DL. Incorporation of quantum dots in silk biomaterials for fluorescence imaging. J Mater Chem B 2015; 3:6509-6519. [PMID: 26257913 PMCID: PMC4527682 DOI: 10.1039/c5tb00326a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Tracking the distribution and degradation of biomaterials after in vivo implantation or injection is important for tissue engineering and drug delivery. Intrinsic and externally labeled fluorescence has been widely used for these purposes. In the present study, 3-mercaptopropionic acid (MPA)-coated CdTe quantum dots (QDs) were incorporated into silk materials via strong interactions between QDs and silk, likely involving the hydrophobic beta-sheet structures in silk. MPA-QDs were pre-mixed with silk solution, followed by ultrasonication to induce silk gelation or by blending with polyvinyl alcohol (PVA) to generate silk microspheres. Silk structural changes and hydrogel/microsphere morphologies were examined by ATR-FTIR and SEM, respectively. The fluorescence of QDs-incorporated silk hydrogels and microspheres remained stable in PBS pH 7.4 for more than 4 days. The amount of QDs released from the materials during the incubation was dependent on loading; no QDs were released when loading was below 0.026 nmol/mg silk. After subcutaneous injection in mice, the fluorescence of QDs-incorporated silk microspheres was quenched within 24 h, similar to that of free QDs. In contrast, the QDs-incorporated silk hydrogels fluoresced for more than 4 days in vivo.
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Affiliation(s)
- Z.Z. Zheng
- National Engineering Laboratory for Modern Silk, Soochow University, Suzhou, China 215123
| | - M. Liu
- The Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, Soochow University, Suzhou, China 215123
| | - S.Z. Guo
- National Engineering Laboratory for Modern Silk, Soochow University, Suzhou, China 215123
| | - J.B. Wu
- National Engineering Laboratory for Modern Silk, Soochow University, Suzhou, China 215123
| | - D.S. Lu
- College of Chemical Engineering and Material Chemistry, Heilong jiang University, Harbin, China 150086
| | - G. Li
- National Engineering Laboratory for Modern Silk, Soochow University, Suzhou, China 215123
| | - S.S. Liu
- National Engineering Laboratory for Modern Silk, Soochow University, Suzhou, China 215123
| | - X.Q. Wang
- National Engineering Laboratory for Modern Silk, Soochow University, Suzhou, China 215123
| | - D. L. Kaplan
- National Engineering Laboratory for Modern Silk, Soochow University, Suzhou, China 215123
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, USA 02155
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93
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Buga MR, Zaharia C, Bălan M, Bressy C, Ziarelli F, Margaillan A. Surface modification of silk fibroin fibers with poly(methyl methacrylate) and poly(tributylsilyl methacrylate) via RAFT polymerization for marine antifouling applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 51:233-41. [DOI: 10.1016/j.msec.2015.03.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 02/25/2015] [Accepted: 03/09/2015] [Indexed: 11/16/2022]
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94
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Suzuki S, Dawson RA, Chirila TV, Shadforth AMA, Hogerheyde TA, Edwards GA, Harkin DG. Treatment of Silk Fibroin with Poly(ethylene glycol) for the Enhancement of Corneal Epithelial Cell Growth. J Funct Biomater 2015; 6:345-66. [PMID: 26034883 PMCID: PMC4493516 DOI: 10.3390/jfb6020345] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 05/26/2015] [Accepted: 05/26/2015] [Indexed: 12/14/2022] Open
Abstract
A silk protein, fibroin, was isolated from the cocoons of the domesticated silkworm (Bombyx mori) and cast into membranes to serve as freestanding templates for tissue-engineered corneal cell constructs to be used in ocular surface reconstruction. In this study, we sought to enhance the attachment and proliferation of corneal epithelial cells by increasing the permeability of the fibroin membranes and the topographic roughness of their surface. By mixing the fibroin solution with poly(ethylene glycol) (PEG) of molecular weight 300 Da, membranes were produced with increased permeability and with topographic patterns generated on their surface. In order to enhance their mechanical stability, some PEG-treated membranes were also crosslinked with genipin. The resulting membranes were thoroughly characterized and compared to the non-treated membranes. The PEG-treated membranes were similar in tensile strength to the non-treated ones, but their elastic modulus was higher and elongation lower, indicating enhanced rigidity. The crosslinking with genipin did not induce a significant improvement in mechanical properties. In cultures of a human-derived corneal epithelial cell line (HCE-T), the PEG treatment of the substratum did not improve the attachment of cells and it enhanced only slightly the cell proliferation in the longer term. Likewise, primary cultures of human limbal epithelial cells grew equally well on both non-treated and PEG-treated membranes, and the stratification of cultures was consistently improved in the presence of an underlying culture of irradiated 3T3 feeder cells, irrespectively of PEG-treatment. Nevertheless, the cultures grown on the PEG-treated membranes in the presence of feeder cells did display a higher nuclear-to-cytoplasmic ratio suggesting a more proliferative phenotype. We concluded that while the treatment with PEG had a significant effect on some structural properties of the B. mori silk fibroin (BMSF) membranes, there were minimal gains in the performance of these materials as a substratum for corneal epithelial cell growth. The reduced mechanical stability of freestanding PEG-treated membranes makes them a less viable choice than the non-treated membranes.
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Affiliation(s)
- Shuko Suzuki
- Queensland Eye Institute, South Brisbane, Queensland 4101, Australia.
| | - Rebecca A Dawson
- Queensland Eye Institute, South Brisbane, Queensland 4101, Australia.
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland 4001, Australia.
| | - Traian V Chirila
- Queensland Eye Institute, South Brisbane, Queensland 4101, Australia.
- Science and Engineering Faculty, Queensland University of Technology, Brisbane, Queensland 4001, Australia.
- Faculty of Medicine and Biomedical Sciences, University of Queensland, Herston, Queensland 4029, Australia.
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St Lucia, Queensland 4072, Australia.
- Faculty of Science, University of Western Australia, Crawley, Western Australia 6009, Australia.
| | - Audra M A Shadforth
- Queensland Eye Institute, South Brisbane, Queensland 4101, Australia.
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland 4001, Australia.
| | - Thomas A Hogerheyde
- Queensland Eye Institute, South Brisbane, Queensland 4101, Australia.
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland 4001, Australia.
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Queensland 4059, Australia.
| | - Grant A Edwards
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St Lucia, Queensland 4072, Australia.
| | - Damien G Harkin
- Queensland Eye Institute, South Brisbane, Queensland 4101, Australia.
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland 4001, Australia.
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Queensland 4059, Australia.
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95
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Lee KG, Chung DE, Kim KY, Jo YY, Kim HB, Kim SK, Kweon H. General characteristics of Antheraea yamamai silkworm cocoon cultured in Korea. ACTA ACUST UNITED AC 2015. [DOI: 10.7852/jses.2015.53.1.6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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96
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Yang L, Yaseen M, Zhao X, Coffey P, Pan F, Wang Y, Xu H, Webster J, Lu JR. Gelatin modified ultrathin silk fibroin films for enhanced proliferation of cells. ACTA ACUST UNITED AC 2015; 10:025003. [PMID: 25784671 DOI: 10.1088/1748-6041/10/2/025003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Silk fibroin (SF) films were modified with gelatin (G) to explore if such SF/G films could enhance the surface biocompatibility of silk as cell growth biomaterials. Ultrathin films were coated from aqueous SF solutions pre-mixed with different amounts of G. It was found that the SF/G blended films after methanol treatment were highly stable in physiological conditions. The incorporation of G smoothed the surface morphology of the SF/G films formed. Surface-exposed RGD sequences were successfully identified on the SF/G films through specific recognition of an integrin-mimicking peptide (bearing the sequence of CWDDGWLC). Cell culture experiments with 3T3 fibroblasts demonstrated that SF/G films with 1.2-20% (w/w) G gave clear improvement in promoting cell attachment and proliferation over pure SF films. Films containing 10-20% (w/w) of G showed cell attachment and growth even superior to the pure G films. The differences as observed from this study suggest that due to the lack of mechanical strength associated with its high solubility, G could not work alone as a cell growth scaffold. The enhanced cellular responses from the blended SF/G films must result from improvement in film stability arising from SF and in cytocompatibility arising from G. The results thus indicate the potential of the SF/G blends in tissue engineering and biomedical engineering where physical and biological properties could be manipulated via mixing either as bulk biomaterials or for coating purposes.
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Affiliation(s)
- Luyuan Yang
- Biological Physics Laboratory, School of Physics and Astronomy, University of Manchester, Schuster Building, Manchester M13 9PL, UK
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97
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Musson DS, Naot D, Chhana A, Matthews BG, McIntosh JD, Lin STC, Choi AJ, Callon KE, Dunbar PR, Lesage S, Coleman B, Cornish J. In vitro evaluation of a novel non-mulberry silk scaffold for use in tendon regeneration. Tissue Eng Part A 2015; 21:1539-51. [PMID: 25604072 DOI: 10.1089/ten.tea.2014.0128] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Tearing of the rotator cuff tendon in the shoulder is a significant clinical problem, with large/full-thickness tears present in ∼22% of the general population and recurrent tear rates postarthroscopic repair being quoted as high as 94%. Tissue-engineered biomaterials are increasingly being investigated as a means to augment rotator cuff repairs, with the aim of inducing host cell responses to increase tendon tissue regeneration. Silk-derived materials are of particular interest due to the high availability, mechanical strength, and biocompatibility of silks. In this study, Spidrex(®), a novel knitted, non-mulberry silk fibroin scaffold was evaluated in vitro for its potential to improve tendon regeneration. Spidrex was compared with a knitted Bombyx mori silk scaffold, a 3D collagen gel and Fiberwire(®) suture material. Primary human and rat tenocytes successfully adhered to Spidrex and significantly increased in number over a 14 day period (p<0.05), as demonstrated by fluorescent calcein-AM staining and alamarBlue(®) assays. A similar growth pattern was observed with human tenocytes cultured on the B. mori scaffold. Morphologically, human tenocytes elongated along the silk fibers of Spidrex, assuming a tenocytic cell shape, and were less circular with a higher aspect ratio compared with human tenocytes cultured on the B. mori silk scaffold and within the collagen gel (p<0.05). Gene expression analysis by real-time PCR showed that rat tenocytes cultured on Spidrex had increased expression of tenocyte-related genes such as fibromodullin, scleraxis, and tenomodulin (p<0.05). Expression of genes that indicate transdifferentiation toward a chondrocytic or osteoblastic lineage were significantly lower in tenocytes cultured on Spidrex in comparison to the collagen gel (p<0.05). Immunogenicity assessment by the maturation of and cytokine release from primary human dendritic cells demonstrated that Spidrex enhanced dendritic cell maturation in a similar manner to the clinically used suture material Fiberwire, and significantly upregulated the release of proinflammatory cytokines (p<0.05). This suggests that Spidrex may induce an early immune response postimplantation. While further work is required to determine what effect this immune response has on the tendon healing process, our in vitro data suggests that Spidrex may have the cytocompatibility and bioactivity required to support tendon regeneration in vivo.
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Affiliation(s)
- David S Musson
- 1 Department of Medicine, The University of Auckland , Auckland, New Zealand
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Nanoscale analysis of unstained biological specimens in water without radiation damage using high-resolution frequency transmission electric-field system based on FE-SEM. Biochem Biophys Res Commun 2015; 459:521-8. [PMID: 25747717 DOI: 10.1016/j.bbrc.2015.02.140] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 02/24/2015] [Indexed: 12/11/2022]
Abstract
Scanning electron microscopy (SEM) has been widely used to examine biological specimens of bacteria, viruses and proteins. Until now, atmospheric and/or wet biological specimens have been examined using various atmospheric holders or special equipment involving SEM. Unfortunately, they undergo heavy radiation damage by the direct electron beam. In addition, images of unstained biological samples in water yield poor contrast. We recently developed a new analytical technology involving a frequency transmission electric-field (FTE) method based on thermionic SEM. This method is suitable for high-contrast imaging of unstained biological specimens. Our aim was to optimise the method. Here we describe a high-resolution FTE system based on field-emission SEM; it allows for imaging and nanoscale examination of various biological specimens in water without radiation damage. The spatial resolution is 8 nm, which is higher than 41 nm of the existing FTE system. Our new method can be easily utilised for examination of unstained biological specimens including bacteria, viruses and protein complexes. Furthermore, our high-resolution FTE system can be used for diverse liquid samples across a broad range of scientific fields, e.g. nanoparticles, nanotubes and organic and catalytic materials.
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99
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Du Q, Huang Z, Wu Z, Meng X, Yin G, Gao F, Wang L. Facile preparation and bifunctional imaging of Eu-doped GdPO4 nanorods with MRI and cellular luminescence. Dalton Trans 2015; 44:3934-40. [PMID: 25630852 DOI: 10.1039/c4dt03444a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Eu-doped GdPO4 NRs coated by silk fibroin have been prepared in a template of silk fibroin (SF) peptides via a mineralization process. A growth mechanism of SF-NRs is proposed to explain their stronger luminescence, better cyto-compatibility and higher longitudinal relaxivity r1.
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Affiliation(s)
- Qijun Du
- College of Materials Science and Engineering
- Sichuan University
- Chengdu
- People's Republic of China
| | - Zhongbing Huang
- College of Materials Science and Engineering
- Sichuan University
- Chengdu
- People's Republic of China
| | - Zhi Wu
- College of Materials Science and Engineering
- Sichuan University
- Chengdu
- People's Republic of China
| | - Xianwei Meng
- Laboratory of Controllable Preparation and Application of Nanomaterials
- Research Center for Micro & Nano Materials and Technology
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Guangfu Yin
- College of Materials Science and Engineering
- Sichuan University
- Chengdu
- People's Republic of China
| | - Fabao Gao
- Molecular Imaging Center
- Department of Radiology
- West China Hospital of Sichuan University
- Chengdu
- China
| | - Lei Wang
- Molecular Imaging Center
- Department of Radiology
- West China Hospital of Sichuan University
- Chengdu
- China
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100
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Lee WY, Um IC, Kim MK, Kwon KJ, Kim SG, Park YW. Effectiveness of Woven Silk Dressing Materials on Full-skin Thickness Burn Wounds in Rat Model. Maxillofac Plast Reconstr Surg 2014; 36:280-4. [PMID: 27489847 PMCID: PMC4283539 DOI: 10.14402/jkamprs.2014.36.6.280] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 10/13/2014] [Accepted: 11/04/2014] [Indexed: 11/17/2022] Open
Abstract
Purpose: This study evaluated woven silk textile for burn wound dressing materials in an animal model. Methods: Ten rats were used in this experiment. Full-thickness 2×2 cm burn wounds were created on the back of the rats under anesthesia. In the experimental group, the wounds were treated with three different dressing materials from woven silk textile. In the control group, natural healing without any dressing material was set as control. The wound surface area was measured at five days, seven days, and 14 days. Wound healing was evaluated by histologic analysis. Results: There were no statistically significant differences among groups at five days post injury. The mean defect size at seven days was largest in Group 3 (462.87 mm2), and smallest in Group 1 (410.89 mm2), not a significant difference (P =0.341). The mean defect size at 14 days was smallest at the Group 3 (308.28 mm2) and largest in the control group (388.18 mm2), not a significant difference (P =0.190). The denuded area was smaller in Group 1 (84.57 mm2) and Group 2 (82.50 mm2) compared with the control group (195.93 mm2), not statistically significant differences (P =0.066, 0.062). The difference between Group 3 and control was also not statistically significant (P =0.136). In histologic analysis, the experimental groups re-epithelialized more than control groups. No evidence was found of severe inflammation. Conclusion: The healing of burn wounds was faster with silk weave textile more than the control group. There was no atypical inflammation with silk dressing materials. In conclusion, silk dressing materials could be used to treat burn wounds.
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Affiliation(s)
- Woo-Young Lee
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University
| | | | - Min-Keun Kim
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University
| | - Kwang-Jun Kwon
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University
| | - Seong-Gon Kim
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University
| | - Young-Wook Park
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University
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