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Zhang S, Yang W, Gong W, Lu Y, Yu DG, Liu P. Recent progress of electrospun nanofibers as burning dressings. RSC Adv 2024; 14:14374-14391. [PMID: 38694552 PMCID: PMC11061782 DOI: 10.1039/d4ra01514b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/25/2024] [Indexed: 05/04/2024] Open
Abstract
Burns are a global public health problem, which brings great challenges to public health and the economy. Severe burns often lead to systemic infection, shock, multiple organ failure, and even death. With the increasing demand for the therapeutic effect of burn wounds, traditional dressings have been unable to meet people's needs due to their single function and many side effects. In this context, electrospinning shows a great prospect on the way to open up advanced wound dressings that promote wound repairing and prevent infection. With its large specific surface area, high porosity, and similar to natural extracellular matrix (ECM), electrospun nanofibers can load drugs and accelerate wound healing. It provides a promising solution for the treatment and management of burn wounds. This review article introduces the concept of burn and the types of electrospun nanofibers, then summarizes the polymers used in electrospun nanofiber dressings. Finally, the drugs (plant extracts, small molecule drugs and nanoparticles) loaded with electrospun burn dressings are summarized. Some promising aspects for developing commercial electrospun burn dressings are proposed.
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Affiliation(s)
- Shengwei Zhang
- School of Health Science and Engineering, University of Shanghai for Science and Technology Shanghai 200093 China
| | - Wei Yang
- The Base of Achievement Transformation, Shidong Hospital Affiliated to University of Shanghai for Science and Technology Shanghai 200443 China
| | - Wenjian Gong
- School of Materials and Chemistry, University of Shanghai for Science and Technology Shanghai 200093 China
| | - Yuhang Lu
- School of Materials and Chemistry, University of Shanghai for Science and Technology Shanghai 200093 China
| | - Deng-Guang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology Shanghai 200093 China
| | - Ping Liu
- The Base of Achievement Transformation, Shidong Hospital Affiliated to University of Shanghai for Science and Technology Shanghai 200443 China
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2
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Zhou S, Wang Q, Yang W, Wang L, Wang J, You R, Luo Z, Zhang Q, Yan S. Development of a bioactive silk fibroin bilayer scaffold for wound healing and scar inhibition. Int J Biol Macromol 2024; 255:128350. [PMID: 37995792 DOI: 10.1016/j.ijbiomac.2023.128350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 11/25/2023]
Abstract
In cases of deep skin defects, spontaneous tissue regeneration and excessive collagen deposition lead to hyperplastic scars. Conventional remedial action after scar formation is limited with a high recurrence rate. In this study, we designed a new artificial skin bilayer using silk fibroin nanofibers films (SNF) as the epidermis, and silk fibroin (SF) / hyaluronic acid (HA) scaffold as the dermal layer. The regenerated SF film was used as a binder to form a functional SNF-SF-HA bilayer scaffold. The bilayer scaffold showed high porosity, hydrophilicity, and strength, and retained its shape over 30 days in PBS. In vitro, human umbilical vein endothelial cells were seeded into the bilayer scaffold and showed superior cell viability. In vivo analyses using the rabbit ear hypertrophic scar (HS) model indicated that the bilayer scaffold not only supported the reconstruction of new tissue, but also inhibited scar formation. The scaffold possibly achieved scar inhabitation by reducing wound contraction, weakening inflammatory reactions, and regulating collagen deposition and type conversion, which was partly observed through the downregulation of type I collagen, transforming growth factor-β, and α-smooth muscle actin. This study describes a new strategy to expand the application of silk-based biomaterials for the treatment of hyperplastic skin scars.
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Affiliation(s)
- Shuiqing Zhou
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China
| | - Qiusheng Wang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China
| | - Wenjing Yang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China
| | - Lu Wang
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, School and Hospital of Stomatology, Shanxi Medical University, Taiyuan 030001, China
| | - Jiangnan Wang
- Key Laboratory of Textile Industry for Silk Products in Medical and Health Use, Soochow University, Suzhou 215123, China
| | - Renchuan You
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China
| | - Zuwei Luo
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China.
| | - Qiang Zhang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China.
| | - Shuqin Yan
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China; Key Laboratory of Textile Industry for Silk Products in Medical and Health Use, Soochow University, Suzhou 215123, China.
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3
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Pan P, Hu C, Liang A, Liu X, Fang M, Yang S, Zhang Y, Li M. Preparation and Properties of Antibacterial Silk Fibroin Scaffolds. Polymers (Basel) 2023; 15:4581. [PMID: 38231982 PMCID: PMC10708750 DOI: 10.3390/polym15234581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 11/25/2023] [Accepted: 11/28/2023] [Indexed: 01/19/2024] Open
Abstract
The development of a wound dressing with both antibacterial and healing-guiding functions is a major concern in the treatment of open and infected wounds. In this study, poly(hexamethylene biguanide) hydrochloride (PHMB) was loaded into a 3D silk fibroin (SF) scaffold based on electrostatic interactions between PHMB and SF, and PHMB/SF hybrid scaffolds were prepared via freeze-drying. The effects of the PHMB/SF ratio on the antibacterial activity and cytocompatibility of the hybrid scaffold were investigated. The results of an agar disc diffusion test and a bacteriostasis rate examination showed that when the mass ratio of PHMB/SF was greater than 1/100, the scaffold exhibited obvious antibacterial activity against E. coli and S. aureus. L-929 cells were encapsulated in the PHMB/SF scaffolds and cultured in vitro. SEM, laser scanning confocal microscopy, and CCK-8 assay results demonstrated that hybrid scaffolds with a PHMB/SF ratio of less than 2/100 significantly promoted cell adhesion, spreading, and proliferation. In conclusion, a hybrid scaffold with a PHMB/SF ratio of approximately 2/100 not only effectively inhibited bacterial reproduction but also showed good cytocompatibility and is expected to be usable as a functional antibacterial dressing for wound repair.
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Affiliation(s)
| | | | | | | | | | | | | | - Mingzhong Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China; (P.P.); (C.H.); (A.L.); (X.L.); (M.F.); (S.Y.); (Y.Z.)
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4
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Martelli A, Bellucci D, Cannillo V. Additive Manufacturing of Polymer/Bioactive Glass Scaffolds for Regenerative Medicine: A Review. Polymers (Basel) 2023; 15:polym15112473. [PMID: 37299270 DOI: 10.3390/polym15112473] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/19/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
Tissue engineering (TE) is a branch of regenerative medicine with enormous potential to regenerate damaged tissues using synthetic grafts such as scaffolds. Polymers and bioactive glasses (BGs) are popular materials for scaffold production because of their tunable properties and ability to interact with the body for effective tissue regeneration. Due to their composition and amorphous structure, BGs possess a significant affinity with the recipient's tissue. Additive manufacturing (AM), a method that allows the creation of complex shapes and internal structures, is a promising approach for scaffold production. However, despite the promising results obtained so far, several challenges remain in the field of TE. One critical area for improvement is tailoring the mechanical properties of scaffolds to meet specific tissue requirements. In addition, achieving improved cell viability and controlled degradation of scaffolds is necessary to ensure successful tissue regeneration. This review provides a critical summary of the potential and limitations of polymer/BG scaffold production via AM covering extrusion-, lithography-, and laser-based 3D-printing techniques. The review highlights the importance of addressing the current challenges in TE to develop effective and reliable strategies for tissue regeneration.
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Affiliation(s)
- Andrea Martelli
- Dipartimento di Ingegneria Enzo Ferrari, Università degli Studi di Modena e Reggio Emilia, Via. P. Vivarelli 10, 41125 Modena, Italy
| | - Devis Bellucci
- Dipartimento di Ingegneria Enzo Ferrari, Università degli Studi di Modena e Reggio Emilia, Via. P. Vivarelli 10, 41125 Modena, Italy
| | - Valeria Cannillo
- Dipartimento di Ingegneria Enzo Ferrari, Università degli Studi di Modena e Reggio Emilia, Via. P. Vivarelli 10, 41125 Modena, Italy
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5
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Ruggeri M, Lenzuni M, Suarato G, Vigani B, Boselli C, Icaro Cornaglia A, Colombo D, Grisoli P, Ricci C, Del Favero E, Rossi S, Athanassiou A, Sandri G. Polysaccharide-protein microparticles based-scaffolds to recover soft tissue loss in mild periodontitis. Int J Pharm 2023; 640:123015. [PMID: 37156308 DOI: 10.1016/j.ijpharm.2023.123015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 04/28/2023] [Accepted: 04/29/2023] [Indexed: 05/10/2023]
Abstract
Periodontal regeneration is extremely limited and unpredictable due to structural complications, as it requires the simultaneous restoration of different tissues, including cementum, gingiva, bone, and periodontal ligament. In this work, spray-dried microparticles based on green materials (polysaccharides - gums - and a protein - silk fibroin) are proposed to be implanted in the periodontal pocket as 3D scaffolds during non-surgical treatments, to prevent the progression of periodontal disease and to promote the healing in mild periodontitis. Arabic or xanthan gum have been associated to silk fibroin, extracted from Bombyx mori cocoons, and loaded with lysozyme due to its antibacterial properties. The microparticles were prepared by spray-drying and cross-linked by water vapor annealing, inducing the amorphous to semi-crystalline transition of the protein component. The microparticles were characterized in terms of their chemico-physical features (SEM, size distribution, structural characterization - FTIR and SAXS, hydration and degradation properties) and preclinical properties (lysozyme release, antibacterial properties, mucoadhesion, in vitro cells adhesion and proliferation and in vivo safety on a murine incisional wound model). The encouraging preclinical results highlighted that these three-dimensional (3D) microparticles could provide a biocompatible platform able to prevent periodontitis progression and to promote the healing of soft tissues in mild periodontitis.
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Affiliation(s)
- Marco Ruggeri
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Martina Lenzuni
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Giulia Suarato
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Barbara Vigani
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Cinzia Boselli
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Antonia Icaro Cornaglia
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia, via Forlanini 2, 27100 Pavia, Italy
| | - Daniele Colombo
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Pietro Grisoli
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Caterina Ricci
- Department of Medical Biotechnology and Translational Medicine, University of Milan, LITA Viale Fratelli Cervi 93, 20090 Segrate, Italy
| | - Elena Del Favero
- Department of Medical Biotechnology and Translational Medicine, University of Milan, LITA Viale Fratelli Cervi 93, 20090 Segrate, Italy
| | - Silvia Rossi
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | | | - Giuseppina Sandri
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
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6
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Chen Z, Cheng Q, Wang L, Mo Y, Li K, Mo J. Optical coherence tomography for in vivo longitudinal monitoring of artificial dermal scaffold. Lasers Surg Med 2023; 55:316-326. [PMID: 36806261 DOI: 10.1002/lsm.23645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 01/26/2023] [Accepted: 01/28/2023] [Indexed: 02/21/2023]
Abstract
OBJECTIVES Artificial dermal scaffold (ADS) has undergone rapid development and been increasingly used for treating skin wound in clinics due to its good biocompatibility, controllable degradation, and low risk of disease infection. To obtain good treatment efficacy, ADS needs to be monitored longitudinally during the treatment process. For example, scaffold-tissue fit, cell in-growth, vascular regeneration, and scaffold degradation are the key properties to be inspected. However, to date, there are no effective, real-time, and noninvasive techniques to meet the requirement of the scaffold monitoring above. MATERIALS AND METHODS In this study, we propose to use optical coherence tomography (OCT) to monitor ADS in vivo through three-dimensional imaging. A swept source OCT system with a handheld probe was developed for in vivo skin imaging. Moreover, a cell in-growth, vascular regeneration, and scaffold degradation rate (IRDR) was defined with the volume reduction rate of the scaffold's collagen sponge layer. To measure the IRDR, a semiautomatic image segmentation algorithm was designed based on U-Net to segment the collagen sponge layer of the scaffold from OCT images. RESULTS The results show that the scaffold-tissue fit can be clearly visualized under OCT imaging. The IRDR can be computed based on the volume of the segmented collagen sponge layer. It is observed that the IRDR appeared to a linear function of the time and in addition, the IRDR varied among different skin parts. CONCLUSION Overall, it can be concluded that OCT has a good potential to monitor ADS in vivo. This can help guide the clinicians to control the treatment with ADS to improve the therapy.
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Affiliation(s)
- Ziye Chen
- Department of Electronic Information, Engineering School of Electronics and Information Engineering, Soochow University, Suzhou, China
| | - Qiong Cheng
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Lingyun Wang
- Department of Electronic Information, Engineering School of Electronics and Information Engineering, Soochow University, Suzhou, China
| | - Yunfeng Mo
- Department of Electronic Information, Engineering School of Electronics and Information Engineering, Soochow University, Suzhou, China
| | - Ke Li
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jianhua Mo
- Department of Electronic Information, Engineering School of Electronics and Information Engineering, Soochow University, Suzhou, China
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7
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Shadman-Manesh V, Gholipour-Kanani A, Najmoddin N, Rabbani S. Preclinical evaluation of the polycaprolactone-polyethylene glycol electrospun nanofibers containing egg-yolk oil for acceleration of full thickness burns healing. Sci Rep 2023; 13:919. [PMID: 36650249 PMCID: PMC9845205 DOI: 10.1038/s41598-023-28065-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 01/12/2023] [Indexed: 01/19/2023] Open
Abstract
Considering the great potential of egg yolk oil (EYO) in management of burn wounds and superb biological properties of polycaprolactone (PCL) and polyethylene glycol (PEG), hereby, a PCL-PEG-EYO scaffold was developed by electrospinning method for burn healing. The physico-chemical characterizations were performed using SEM, FTIR and contact angle tests. The biological properties of the fabricated scaffolds were evaluated by antibacterial test, in vitro cell culturing, MTT assay and in vivo experiments. The SEM images of PCL-PEG-EYO nanofibers demonstrated a uniform bead-free morphology with 191 ± 61 nm diameter. The fabricated scaffold revealed hydrophilicity with the water contact angel of 77°. No cytotoxicity was observed up to 7 days after cell culturing onto the PCL-PEG-EYO nanofibrous surface. The presence of EYO in the PCL-PEG-EYO scaffold meaningfully improved the cell viability, proliferation and attachment compared to PCL-PEG scaffold. Moreover, the PCL-PEG-EYO scaffolds demonstrated antibacterial activity against Staphylococcus aureus and Pseudomonas aeruginosa bacteria strain. Finally, a statistically significant enhancement in wound closure, re-epithelialization, angiogenesis and collagen synthesis was observed at the end of 21-day treatment period using PCL-PEG-EYO nanofibrous scaffold. Overall, the PCL-PEG-EYO nanofibrous scaffolds demonstrated a great potential in management of full thickness burn wounds in vivo.
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Affiliation(s)
- Vida Shadman-Manesh
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Adeleh Gholipour-Kanani
- Department of Textile Engineering, Science and Research Branch, Islamic Azad University, Tehran, 1477893855, Iran.
| | - Najmeh Najmoddin
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shahram Rabbani
- Research Center of Advanced Technologies in Cardiovascular Medicine, Cardiovascular Diseases Research Institute, Tehran University of Medical Science, Tehran, Iran
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8
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Li XF, Lu P, Jia HR, Li G, Zhu B, Wang X, Wu FG. Emerging materials for hemostasis. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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9
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Yang M, Yu S, Zhao P, Shi G, Guo Y, Xie L, Lyu G, Yu J. Fabrication of biologically inspired electrospun collagen/silk fibroin/bioactive glass composited nanofibrous to accelerate the treatment efficiency of wound repair. Int Wound J 2022; 20:687-698. [PMID: 36480641 PMCID: PMC9927904 DOI: 10.1111/iwj.13910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 07/02/2022] [Accepted: 07/19/2022] [Indexed: 12/13/2022] Open
Abstract
A triple-layer matrix Collagen/Silk fibroin/Bioactive glass composited Nanofibrous was fabricated by linking electrospinning and freeze-drying systems, this typical three layered composite with a nanofibrous fragment as the key (top) layer, middle portion as inferior, and a spongy porous fragment as the third (bottom) deposit to develop the synergistic effect of composite materials resultant to physical and biological performances. Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy were used to assess the final material's physicochemical properties (SEM). The triple-layer matrix had a nanofibrous and porous structure, which has qualities including high porosity, swelling, and stability, which are important in soft-tissue engineering. NIH 3 T3 fibroblast and humanoid keratinocyte (HaCaT) cell lines were also used to investigate the matrix's in vitro biological and fluorescent capabilities, which showed excellent cell adherence and proliferation across the composite layers. The synergistic arrangement of nanofibrous substantial deposition onto collagenous with silk fibroin candidates has therefore proven effective in the construction of a tri-layer matrix for skin-tissue-engineering applications.
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Affiliation(s)
- Minlie Yang
- Department of Burn and Plastic SurgeryAffiliated Hospital of Jiangnan UniversityWuxiPeople's Republic of China
| | - Shun Yu
- Department of Burn and Plastic SurgeryAffiliated Hospital of Jiangnan UniversityWuxiPeople's Republic of China
| | - Peng Zhao
- Department of Burn and Plastic SurgeryAffiliated Hospital of Jiangnan UniversityWuxiPeople's Republic of China
| | - Gaofeng Shi
- Department of Burn and Plastic SurgeryAffiliated Hospital of Jiangnan UniversityWuxiPeople's Republic of China
| | - Yun Guo
- Department of Burn and Plastic SurgeryAffiliated Hospital of Jiangnan UniversityWuxiPeople's Republic of China
| | - Longwei Xie
- Department of Burn and Plastic SurgeryAffiliated Hospital of Jiangnan UniversityWuxiPeople's Republic of China
| | - Guozhong Lyu
- Department of Burn and Plastic SurgeryAffiliated Hospital of Jiangnan UniversityWuxiPeople's Republic of China
| | - Junjie Yu
- Department of Burn and Plastic SurgeryAffiliated Hospital of Jiangnan UniversityWuxiPeople's Republic of China
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10
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Characteristics of Marine Biomaterials and Their Applications in Biomedicine. Mar Drugs 2022; 20:md20060372. [PMID: 35736175 PMCID: PMC9228671 DOI: 10.3390/md20060372] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 05/21/2022] [Accepted: 05/27/2022] [Indexed: 02/04/2023] Open
Abstract
Oceans have vast potential to develop high-value bioactive substances and biomaterials. In the past decades, many biomaterials have come from marine organisms, but due to the wide variety of organisms living in the oceans, the great diversity of marine-derived materials remains explored. The marine biomaterials that have been found and studied have excellent biological activity, unique chemical structure, good biocompatibility, low toxicity, and suitable degradation, and can be used as attractive tissue material engineering and regenerative medicine applications. In this review, we give an overview of the extraction and processing methods and chemical and biological characteristics of common marine polysaccharides and proteins. This review also briefly explains their important applications in anticancer, antiviral, drug delivery, tissue engineering, and other fields.
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11
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Kaur G, Narayanan G, Garg D, Sachdev A, Matai I. Biomaterials-Based Regenerative Strategies for Skin Tissue Wound Healing. ACS APPLIED BIO MATERIALS 2022; 5:2069-2106. [PMID: 35451829 DOI: 10.1021/acsabm.2c00035] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Skin tissue wound healing proceeds through four major stages, including hematoma formation, inflammation, and neo-tissue formation, and culminates with tissue remodeling. These four steps significantly overlap with each other and are aided by various factors such as cells, cytokines (both anti- and pro-inflammatory), and growth factors that aid in the neo-tissue formation. In all these stages, advanced biomaterials provide several functional advantages, such as removing wound exudates, providing cover, transporting oxygen to the wound site, and preventing infection from microbes. In addition, advanced biomaterials serve as vehicles to carry proteins/drug molecules/growth factors and/or antimicrobial agents to the target wound site. In this review, we report recent advancements in biomaterials-based regenerative strategies that augment the skin tissue wound healing process. In conjunction with other medical sciences, designing nanoengineered biomaterials is gaining significant attention for providing numerous functionalities to trigger wound repair. In this regard, we highlight the advent of nanomaterial-based constructs for wound healing, especially those that are being evaluated in clinical settings. Herein, we also emphasize the competence and versatility of the three-dimensional (3D) bioprinting technique for advanced wound management. Finally, we discuss the challenges and clinical perspective of various biomaterial-based wound dressings, along with prospective future directions. With regenerative strategies that utilize a cocktail of cell sources, antimicrobial agents, drugs, and/or growth factors, it is expected that significant patient-specific strategies will be developed in the near future, resulting in complete wound healing with no scar tissue formation.
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Affiliation(s)
- Gurvinder Kaur
- Materials Science and Sensor Applications, Central Scientific Instruments Organization, Chandigarh 160030, India
| | - Ganesh Narayanan
- Fiber and Polymer Science Program, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Deepa Garg
- Materials Science and Sensor Applications, Central Scientific Instruments Organization, Chandigarh 160030, India
| | - Abhay Sachdev
- Materials Science and Sensor Applications, Central Scientific Instruments Organization, Chandigarh 160030, India
| | - Ishita Matai
- Department of Biotechnology, School of Biological Sciences, Amity University Punjab, Mohali 140306, India
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12
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Wang J, He W, Tan WS, Cai H. The chitosan/carboxymethyl cellulose/montmorillonite scaffolds incorporated with epigallocatechin-3-gallate-loaded chitosan microspheres for promoting osteogenesis of human umbilical cord-derived mesenchymal stem cell. BIORESOUR BIOPROCESS 2022; 9:36. [PMID: 38647806 PMCID: PMC10991275 DOI: 10.1186/s40643-022-00513-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 02/27/2022] [Indexed: 12/23/2022] Open
Abstract
Epigallocatechin-3-gallate (EGCG) is a plant-derived flavonoid compound with the ability to promote the differentiation of human bone marrow-derived mesenchymal stem cells (MSCs) into osteoblasts. However, the effect of EGCG on the osteogenic differentiation of the human umbilical cord-derived mesenchymal stem cells (HUMSCs) is rarely studied. Therefore, in this study, the osteogenic effects of EGCG are studied in the HUMSCs by detecting cell proliferation, alkaline phosphatase (ALP) activity, calcium deposition and the expression of relevant osteogenic markers. The results showed that EGCG can promote the proliferation and osteogenic differentiation of the HUMSCs in vitro at a concentration of 2.5-5.0 μM. Unfortunately, the EGCG is easily metabolized by cells during cell culture, which reduces its bioavailability. Therefore, in this paper, EGCG-loaded microspheres (ECM) were prepared and embedded in chitosan/carboxymethyl cellulose/montmorillonite (CS/CMC/MMT) scaffolds to form CS/CMC/MMT-ECM scaffolds for improving the bioavailability of EGCG. The HUMSCs were cultured on CS/CMC/MMT-ECM scaffolds to induce osteogenic differentiation. The results showed that the CS/CMC/MMT-ECM scaffold continuously released EGCG for up to 22 days. In addition, CS/CMC/MMT-ECM scaffolds can promote osteoblast differentiation. Taken together, the present study suggested that entrainment of ECM into CS/CMC/MMT scaffolds was a prospective scheme for promotion osteogenic differentiation of the HUMSCs.
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Affiliation(s)
- Jin Wang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Wubo He
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Wen-Song Tan
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Haibo Cai
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
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13
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Elimination of Induced Hypoxic Regions in Depth of 3D Porous Silk Scaffolds by the Introduction of Channel Configuration. BIOMED RESEARCH INTERNATIONAL 2022; 2022:9767687. [PMID: 35342757 PMCID: PMC8942621 DOI: 10.1155/2022/9767687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 02/22/2022] [Indexed: 11/17/2022]
Abstract
Development of large, clinically sized tissue constructs with efficient mass transport is a tremendous need in tissue engineering. One major challenge in large tissue-engineered constructs is to support homogeneous delivery of oxygen and nutrients throughout the tissue scaffold while eliminating induced hypoxic regions in depth. To address this goal, we introduced an especial channeled architecture on porous silk-based tissue scaffolds to improve supplying of oxygen to the cells in central regions of the scaffolds. Oxygen gradients were measured and evaluated in three scaffold prototypes, namely, one unchanneled and two channeled scaffolds with different channel diameters (500 μm and 1000 μm). The channels were introduced into the constructs using stainless-steel rods arranged uniformly in stainless-steel mold, a fabrication method that enables precise control over channel diameter and the distance between channels. During 2-week culture of G292 cells, the 1000 μm channeled scaffolds demonstrated higher oxygen concentration at the center compared to 500 μm channeled prototype; however, the oxygen concentration approached the same level around the last days of culture. Nevertheless, homogenous oxygen distribution throughout the 1000 μm channeled constructs and the consequence of higher cell proliferation at day 14 postseeding corroborate the efficient elimination of induced hypoxic regions; and therefore, it holds promise for clinically relevant sized scaffold especially in bone tissue engineering.
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14
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Silk fibroin nanofibers containing chondroitin sulfate and silver sulfadiazine for wound healing treatment. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Stie MB, Kalouta K, Vetri V, Foderà V. Protein materials as sustainable non- and minimally invasive strategies for biomedical applications. J Control Release 2022; 344:12-25. [PMID: 35182614 DOI: 10.1016/j.jconrel.2022.02.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 02/10/2022] [Accepted: 02/12/2022] [Indexed: 01/17/2023]
Abstract
Protein-based materials have found applications in a wide range of biomedical fields because of their biocompatibility, biodegradability and great versatility. Materials of different physical forms including particles, hydrogels, films, fibers and microneedles have been fabricated e.g. as carriers for drug delivery, factors to promote wound healing and as structural support for the generation of new tissue. This review aims at providing an overview of the current scientific knowledge on protein-based materials, and selected preclinical and clinical studies will be reviewed in depth as examples of the latest progress within the field of protein-based materials, specifically focusing on non- and minimally invasive strategies mainly for topical application.
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Affiliation(s)
- Mai Bay Stie
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark; Center for Biopharmaceuticals and Biobarriers in Drug Delivery, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark.
| | - Kleopatra Kalouta
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark; Center for Biopharmaceuticals and Biobarriers in Drug Delivery, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark; Dipartimento di Fisica e Chimica, Università Degli Studi di Palermo, Viale delle Scienze ed. 18, 90128 Palermo, Italy
| | - Valeria Vetri
- Dipartimento di Fisica e Chimica, Università Degli Studi di Palermo, Viale delle Scienze ed. 18, 90128 Palermo, Italy
| | - Vito Foderà
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark; Center for Biopharmaceuticals and Biobarriers in Drug Delivery, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark.
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16
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Chondroitin sulfate cross-linked three-dimensional tailored electrospun scaffolds for cartilage regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2022; 134:112643. [DOI: 10.1016/j.msec.2022.112643] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 12/09/2021] [Accepted: 01/02/2022] [Indexed: 01/11/2023]
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17
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Yuan S, Sun X, Shen Y, Li Z. Bioabsorbable poly(4-hydroxybutyrate) (P4HB) fibrous membranes as a potential dermal substitute. J Mater Chem B 2021; 9:8074-8080. [PMID: 34490430 DOI: 10.1039/d1tb01271a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Dermal substitutes are indispensable for repairing large full-thickness skin defects. Only a few biomaterials for dermal substitution have been put into clinical practice. Therefore, novel artificial dermal substitutes that can meet clinical requirements are in urgent need. Biodegradable poly(4-hydroxybutyrate) (P4HB), which has been approved by the U.S. FDA, can be considered as a possible alternative biomaterial to construct dermal substitutes. In this work, three-dimensional P4HB fibrous membranes were constructed by an electrospinning technique. These P4HB fibrous membranes showed excellent air-permeability, and better water uptake capacity compared to P4HB strip and polycaprolactone (PCL) fibrous membrane controls. The in vitro hemocompatibility and cytotoxicity of P4HB fibrous membranes were investigated. In vivo Sprague-Dawley (SD) rat model studies revealed that P4HB fibrous membranes can be used as artificial dermis to improve wound healing for full-thickness skin defects.
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Affiliation(s)
- Shuaishuai Yuan
- Key Lab of Biobased Polymer Materials of Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China. .,National Engineering Laboratory of Medical Implantable Devices & Key Laboratory for Medical Implantable Devices of Shandong Province, WEGO Holding Company Limited, Weihai 264210, P. R. China
| | - Xiuxia Sun
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Yong Shen
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Zhibo Li
- Key Lab of Biobased Polymer Materials of Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China. .,College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
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18
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Lee S, Choi J, Youn J, Lee Y, Kim W, Choe S, Song J, Reis RL, Khang G. Development and Evaluation of Gellan Gum/Silk Fibroin/Chondroitin Sulfate Ternary Injectable Hydrogel for Cartilage Tissue Engineering. Biomolecules 2021; 11:1184. [PMID: 34439850 PMCID: PMC8394129 DOI: 10.3390/biom11081184] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/23/2021] [Accepted: 08/06/2021] [Indexed: 12/27/2022] Open
Abstract
Hydrogel is in the spotlight as a useful biomaterial in the field of drug delivery and tissue engineering due to its similar biological properties to a native extracellular matrix (ECM). Herein, we proposed a ternary hydrogel of gellan gum (GG), silk fibroin (SF), and chondroitin sulfate (CS) as a biomaterial for cartilage tissue engineering. The hydrogels were fabricated with a facile combination of the physical and chemical crosslinking method. The purpose of this study was to find the proper content of SF and GG for the ternary matrix and confirm the applicability of the hydrogel in vitro and in vivo. The chemical and mechanical properties were measured to confirm the suitability of the hydrogel for cartilage tissue engineering. The biocompatibility of the hydrogels was investigated by analyzing the cell morphology, adhesion, proliferation, migration, and growth of articular chondrocytes-laden hydrogels. The results showed that the higher proportion of GG enhanced the mechanical properties of the hydrogel but the groups with over 0.75% of GG exhibited gelling temperatures over 40 °C, which was a harsh condition for cell encapsulation. The 0.3% GG/3.7% SF/CS and 0.5% GG/3.5% SF/CS hydrogels were chosen for the in vitro study. The cells that were encapsulated in the hydrogels did not show any abnormalities and exhibited low cytotoxicity. The biochemical properties and gene expression of the encapsulated cells exhibited positive cell growth and expression of cartilage-specific ECM and genes in the 0.5% GG/3.5% SF/CS hydrogel. Overall, the study of the GG/SF/CS ternary hydrogel with an appropriate content showed that the combination of GG, SF, and CS can synergistically promote articular cartilage defect repair and has considerable potential for application as a biomaterial in cartilage tissue engineering.
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Affiliation(s)
- Seongwon Lee
- Department of Bionanotechnology and Bio-Convergence Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Korea; (S.L.); (J.C.); (J.Y.); (Y.L.); (W.K.); (S.C.); (J.S.)
| | - Joohee Choi
- Department of Bionanotechnology and Bio-Convergence Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Korea; (S.L.); (J.C.); (J.Y.); (Y.L.); (W.K.); (S.C.); (J.S.)
| | - Jina Youn
- Department of Bionanotechnology and Bio-Convergence Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Korea; (S.L.); (J.C.); (J.Y.); (Y.L.); (W.K.); (S.C.); (J.S.)
| | - Younghun Lee
- Department of Bionanotechnology and Bio-Convergence Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Korea; (S.L.); (J.C.); (J.Y.); (Y.L.); (W.K.); (S.C.); (J.S.)
| | - Wooyoup Kim
- Department of Bionanotechnology and Bio-Convergence Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Korea; (S.L.); (J.C.); (J.Y.); (Y.L.); (W.K.); (S.C.); (J.S.)
| | - Seungho Choe
- Department of Bionanotechnology and Bio-Convergence Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Korea; (S.L.); (J.C.); (J.Y.); (Y.L.); (W.K.); (S.C.); (J.S.)
| | - Jeongeun Song
- Department of Bionanotechnology and Bio-Convergence Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Korea; (S.L.); (J.C.); (J.Y.); (Y.L.); (W.K.); (S.C.); (J.S.)
| | - Rui L. Reis
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Guimarães, Portugal;
| | - Gilson Khang
- Department of Bionanotechnology and Bio-Convergence Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Korea; (S.L.); (J.C.); (J.Y.); (Y.L.); (W.K.); (S.C.); (J.S.)
- Department of PolymerNano Science & Technology and Polymer Materials Fusion Research Center, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Korea
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19
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Valachová K, Šoltés L. Hyaluronan as a Prominent Biomolecule with Numerous Applications in Medicine. Int J Mol Sci 2021; 22:7077. [PMID: 34209222 PMCID: PMC8269271 DOI: 10.3390/ijms22137077] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 12/16/2022] Open
Abstract
Hyaluronan (HA) is a natural glycosaminoglycan present in many tissues of all vertebrates. HA has various biological functions, which are dependent on its molar mass. High-molar-mass HA has anti-angiogenic, immunosuppressive and anti-inflammatory properties, while low-molar-mass HA has opposite effects. HA has also antioxidative properties, however on the other hand it can be readily degraded by reactive oxygen species. For many years it has been used in treatment of osteoarthritis, cosmetics and in ophthalmology. In the last years there has been a growing interest of HA to also be applied in other fields of medicine such as skin wound healing, tissue engineering, dentistry and gene delivery. In this review we summarize information on modes of HA administration, properties and effects of HA in various fields of medicine including recent progress in the investigation of HA.
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Affiliation(s)
- Katarína Valachová
- Centre of Experimental Medicine, Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Dúbravská cesta 9, 84104 Bratislava, Slovakia;
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20
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Wang L, Nan X, Hou J, Xia Y, Guo Y, Meng K, Xu C, Lian J, Zhang Y, Wang X, Zhao B. Preparation and biological properties of silk fibroin/nano-hydroxyapatite/hyaluronic acid composite scaffold. Biomed Mater 2021; 16. [PMID: 34098538 DOI: 10.1088/1748-605x/ac08aa] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 06/07/2021] [Indexed: 02/06/2023]
Abstract
In this study, the silk fibroin/nano-hydroxyapatite/hyaluronic acid (SF/nHAp/HA) composite scaffolds with different HA contents were developed by blending, cross-linking and freeze-drying, and their physicochemical properties and cell biocompatibilityin vitrowere subsequently studied. It was observed that the molecular conformation of the composite scaffolds was mainly composed of silk I and a small amount of theβ-sheets structure. On enhancing the HA content, the pore size of the scaffold decreased, while the porosity, water absorption, swelling ratio and mechanical properties were observed to increase. In particular, the SF/nHAp/HA scaffold with a 5.0 wt% ratio exhibited the highest water absorption and mechanical properties among the developed materials. In addition, thein vitrocytocompatibility analysis showed that the bone marrow mesenchymal stem cells exhibited excellent cell proliferation and osteogenic differentiation ability on the SF/nHAp/5.0 wt%HA scaffolds, as compared with the other scaffolds. It can be concluded that the developed composite scaffolds represent a promising class of materials for the bone tissue repair and regeneration.
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Affiliation(s)
- Lu Wang
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials,Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, People's Republic of China
| | - Xiaoru Nan
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials,Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, People's Republic of China
| | - Jiaxin Hou
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials,Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, People's Republic of China
| | - Yijing Xia
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials,Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, People's Republic of China
| | - Yanqin Guo
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials,Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, People's Republic of China
| | - Kejing Meng
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials,Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, People's Republic of China
| | - Changzhen Xu
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials,Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, People's Republic of China
| | - Jing Lian
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials,Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, People's Republic of China
| | - Yufang Zhang
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials,Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, People's Republic of China
| | - Xiangyu Wang
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials,Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, People's Republic of China
| | - Bin Zhao
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials,Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, People's Republic of China
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21
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Hu Z, Yan S, Li X, You R, Zhang Q, Kaplan DL. Natural Silk Nanofibril Aerogels with Distinctive Filtration Capacity and Heat-Retention Performance. ACS NANO 2021; 15:8171-8183. [PMID: 33848124 DOI: 10.1021/acsnano.1c00346] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Nanofibrous aerogels have been extensively developed as multifunctional substrates in a wide range of fields. Natural silk nanofibrils (SNFs) are an appealing biopolymer due to their natural abundance, mechanical toughness, biodegradability, and excellent biocompatibility. However, fabricating 3D SNF materials with mechanical flexibility remains a challenge. Herein, SNF-based aerogels with controlled structures and well mechanical resilience were prepared. SNFs were extracted from silkworm silks by mechanical disintegration based on an all-aqueous system. The nanofibrils network and hierarchical cellular structure of the aerogels were tuned by the assembly of SNFs and foreign poly(vinyl alcohol) (PVA). The SNF aerogels exhibited an ultralow density (as low as 2.0 mg·cm-3) and well mechanical properties with a structure allowing for large deformations. These SNF aerogels demonstrated a reversible compression and stress retention after 100 cycles of compression. Furthermore, the resulting aerogels were used for air filtration and showed efficient filtration performance with a high dust-holding capacity and low resistance. Moreover, an extremely low thermal conductivity of 0.028 W·(m·K)-1 was achieved by the aerogel, showing its potential for use in heat-retention applications. This study provides a useful strategy for exploring the use of natural silks in 3D aerogels and offers options for developing filtration materials and ultralight heat-retention materials.
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Affiliation(s)
- Zhanao Hu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China
| | - Shuqin Yan
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China
| | - Xiufang Li
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China
| | - Renchuan You
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China
| | - Qiang Zhang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
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22
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Hu B, Gao M, Boakye-Yiadom KO, Ho W, Yu W, Xu X, Zhang XQ. An intrinsically bioactive hydrogel with on-demand drug release behaviors for diabetic wound healing. Bioact Mater 2021; 6:4592-4606. [PMID: 34095619 PMCID: PMC8141414 DOI: 10.1016/j.bioactmat.2021.04.040] [Citation(s) in RCA: 114] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/20/2021] [Accepted: 04/24/2021] [Indexed: 12/14/2022] Open
Abstract
Prolonged, intense inflammation and excessive oxidative stress hinder diabetic wounds from healing normally, leading to disorders downstream including the postponement of re-epithelialization and extracellular matrix (ECM) formation. Herein, we report a hyaluronic acid (HA) and chitosan based hydrogel (OHA-CMC) with inherent antibacterial and hemostatic activities fabricated via Schiff base reaction. By encapsulating nanotechnologically-modified curcumin (CNP) and epidermal growth factor (EGF) into the hydrogel, OHA-CMC/CNP/EGF exhibited extraordinary antioxidant, anti-inflammatory, and migration-promoting effects in vitro. Meanwhile, OHA-CMC/CNP/EGF presented on-demand drug release in synchrony with the phases of the wound healing process. Specifically, curcumin was rapidly and constantly released to alleviate inflammation and oxidative stress in the early phase of wound healing, while a more gradual and sustained release of EGF supported late proliferation and ECM remodeling. In a diabetic full-thickness skin defect model, OHA-CMC/CNP/EGF dramatically improved wound healing with ideal re-epithelialization, granulation tissue formation, and skin appendage regeneration, highlighting the enormous therapeutic potential this biomaterial holds as a diabetic wound dressing. OHA-CMC hydrogel showed excellent inherent antibacterial and hemostatic activities. OHA-CMC co-delivered curcumin and EGF with on-demand drug release that met the repair requirements of each healing stage. OHA-CMC/CNP/EGF showed potent antioxidant and anti-inflammation activities, and was capable of promoting cell migration. OHA-CMC/CNP/EGF significantly accelerated diabetic wound healing.
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Affiliation(s)
- Bin Hu
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
| | - Mingzhu Gao
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
| | - Kofi Oti Boakye-Yiadom
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
| | - William Ho
- Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Wei Yu
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
| | - Xiaoyang Xu
- Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Xue-Qing Zhang
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
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23
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Wen DL, Sun DH, Huang P, Huang W, Su M, Wang Y, Han MD, Kim B, Brugger J, Zhang HX, Zhang XS. Recent progress in silk fibroin-based flexible electronics. MICROSYSTEMS & NANOENGINEERING 2021; 7:35. [PMID: 34567749 PMCID: PMC8433308 DOI: 10.1038/s41378-021-00261-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 02/16/2021] [Indexed: 05/04/2023]
Abstract
With the rapid development of the Internet of Things (IoT) and the emergence of 5G, traditional silicon-based electronics no longer fully meet market demands such as nonplanar application scenarios due to mechanical mismatch. This provides unprecedented opportunities for flexible electronics that bypass the physical rigidity through the introduction of flexible materials. In recent decades, biological materials with outstanding biocompatibility and biodegradability, which are considered some of the most promising candidates for next-generation flexible electronics, have received increasing attention, e.g., silk fibroin, cellulose, pectin, chitosan, and melanin. Among them, silk fibroin presents greater superiorities in biocompatibility and biodegradability, and moreover, it also possesses a variety of attractive properties, such as adjustable water solubility, remarkable optical transmittance, high mechanical robustness, light weight, and ease of processing, which are partially or even completely lacking in other biological materials. Therefore, silk fibroin has been widely used as fundamental components for the construction of biocompatible flexible electronics, particularly for wearable and implantable devices. Furthermore, in recent years, more attention has been paid to the investigation of the functional characteristics of silk fibroin, such as the dielectric properties, piezoelectric properties, strong ability to lose electrons, and sensitivity to environmental variables. Here, this paper not only reviews the preparation technologies for various forms of silk fibroin and the recent progress in the use of silk fibroin as a fundamental material but also focuses on the recent advanced works in which silk fibroin serves as functional components. Additionally, the challenges and future development of silk fibroin-based flexible electronics are summarized. (1) This review focuses on silk fibroin serving as active functional components to construct flexible electronics. (2) Recent representative reports on flexible electronic devices that applied silk fibroin as fundamental supporting components are summarized. (3) This review summarizes the current typical silk fibroin-based materials and the corresponding advanced preparation technologies. (4) The current challenges and future development of silk fibroin-based flexible electronic devices are analyzed.
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Affiliation(s)
- Dan-Liang Wen
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731 China
| | - De-Heng Sun
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731 China
| | - Peng Huang
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731 China
| | - Wen Huang
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731 China
| | - Meng Su
- CIRMM, Institute of Industrial Science, The University of Tokyo, Tokyo, 153-8505 Japan
| | - Ya Wang
- Microsystems Laboratory, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Meng-Di Han
- Institute of Microelectronics, Peking University, 100087 Beijing, China
| | - Beomjoon Kim
- CIRMM, Institute of Industrial Science, The University of Tokyo, Tokyo, 153-8505 Japan
| | - Juergen Brugger
- Microsystems Laboratory, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Hai-Xia Zhang
- Institute of Microelectronics, Peking University, 100087 Beijing, China
| | - Xiao-Sheng Zhang
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731 China
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24
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Ornell KJ, Mistretta KS, Ralston CQ, Coburn JM. Development of a stacked, porous silk scaffold neuroblastoma model for investigating spatial differences in cell and drug responsiveness. Biomater Sci 2021; 9:1272-1290. [PMID: 33336667 DOI: 10.1039/d0bm01153c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Development of in vitro, preclinical cancer models that contain cell-driven microenvironments remains a challenge. Engineering of millimeter-scale, in vitro tumor models with spatially distinct regions that can be independently assessed to study tumor microenvironments has been limited. Here, we report the use of porous silk scaffolds to generate a high cell density neuroblastoma (NB) model that can spatially recapitulate changes resulting from cell and diffusion driven changes. Using COMSOL modeling, a scaffold holder design that facilitates stacking of thin, 200 μm silk scaffolds into a thick, bulk millimeter-scale tumor model (2, 4, 6, and 8 stacked scaffolds) and supports cell-driven oxygen gradients was developed. Cell-driven oxygen gradients were confirmed through pimonidazole staining. Post-culture, the stacked scaffolds were separated for analysis on a layer-by-layer basis. The analysis of each scaffold layer demonstrated decreasing DNA and increasing expression of hypoxia related genes (VEGF, CAIX, and GLUT1) from the exterior scaffolds to the interior scaffolds. Furthermore, the expression of hypoxia related genes at the interior of the stacks was comparable to that of a single scaffold cultured under 1% O2 and at the exterior of the stacks was comparable to that of a single scaffold cultured under 21% O2. The four-stack scaffold model underwent further evaluation to determine if a hypoxia activated drug, tirapazamine, induced reduced cell viability within the internal stacks (region of reduced oxygen) as compared with the external stacks. Decreased DNA content was observed in the internal stacks as compared to the external stacks when treated with tirapazamine, which suggests the internal scaffold stacks had higher levels of hypoxia than the external scaffolds. This stacked silk scaffold system presents a method for creating a single culture model capable of generating controllable cell-driven microenvironments through different stacks that can be individually assessed and used for drug screening.
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Affiliation(s)
- Kimberly J Ornell
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, USA.
| | - Katelyn S Mistretta
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, USA.
| | - Coulter Q Ralston
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, USA.
| | - Jeannine M Coburn
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, USA.
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Li J, Du R, Bian Q, Zhang D, Gao S, Yuan A, Ying X, Shen Y, Gao J. Topical application of HA-g-TEMPO accelerates the acute wound healing via reducing reactive oxygen species (ROS) and promoting angiogenesis. Int J Pharm 2021; 597:120328. [PMID: 33540013 DOI: 10.1016/j.ijpharm.2021.120328] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/16/2020] [Accepted: 01/27/2021] [Indexed: 02/07/2023]
Abstract
During the occurring of cutaneous trauma, increasing oxidative stress response in wound site retards the progress of proliferation phase, impeding sequent efficient wound repair. At the same time, high-quality healing also requires adequate new blood vessels in order to furnish the wound site with a nutrient and oxygen-sufficient environment. Here we synthesized a novel hyaluronic acid (HA) material modified with a peroxidation inhibitor 2,2,6,6-tetramethylpiperidinyloxy (ATEMPO) for prevention of excessive reactive oxygen species (ROS) and promotion of angiogenesis after full-thickness skin excision in rats. Amines in ATEMPO attaching with carbonyls in HA chains was fabricated through N-acylation. The HA-g-TEMPO exerted a ROS-scavenging and angiogenesis-promoting function in vitro. In acute wound rat model, the wound closure efficacy was significantly improved to almost 55% at day 6 in comparison to 49% of HA, and wound sites in initial wound phase was also narrowed down sharply. Moreover, initially formed blood vessels were found in wound sites, further proved the angiogenesis-promoting function of HA-g-TEMPO. More interestingly, wound sites demonstrated an exciting regenerative healing effect which was characterized by marked skin appendages as well as reduced scarring. Therefore, this strategy showed a promising future that could be considered as a reliable and effective method to cutaneous wound healing.
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Affiliation(s)
- Junjun Li
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Rong Du
- Zhejiang Key Laboratory of Smart Biomaterials, Zhejiang University, Hangzhou 310027, PR China
| | - Qiong Bian
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Danping Zhang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Siqian Gao
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Anran Yuan
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Xiaoying Ying
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Youqing Shen
- Zhejiang Key Laboratory of Smart Biomaterials, Zhejiang University, Hangzhou 310027, PR China.
| | - Jianqing Gao
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China; Jiangsu Engineering Research Center for New-Type External and Transdermal Preparations, PR China.
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Bioactive multi-engineered hydrogel offers simultaneous promise against antibiotic resistance and wound damage. Int J Biol Macromol 2020; 164:4466-4474. [DOI: 10.1016/j.ijbiomac.2020.08.247] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/15/2020] [Accepted: 08/31/2020] [Indexed: 12/21/2022]
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Zhao X, Wang L, Gao J, Chen X, Wang K. Hyaluronic acid/lysozyme self-assembled coacervate to promote cutaneous wound healing. Biomater Sci 2020; 8:1702-1710. [PMID: 31994544 DOI: 10.1039/c9bm01886g] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Traditional hydrogel dressings are limited in practical applications due to the complexity of the preparation and low biocompatibility. So, there is an urgent need to design wound dressing with simple preparation method, higher biocompatibility, and superior therapeutic effect. Additionally, using a polysaccharide/protein mixture system is an attractive method to prepare the gel. In this study, a simple mixture of hyaluronic acid/lysozyme (HL) was used to obtain the HL coacervate gel. HL coacervate has suitable viscoelasticity and excellent adhesion on the skin tissue. We demonstrated its highly efficient self-healing property to overcome fracture or deformation. HL coacervate showed a significant effect on promoting wound healing in a full-thickness skin defect model. Compared to the commercial 3M dressing, it has faster epithelial tissue regeneration and stronger collagen deposition. In addition, cytotoxicity and organ toxicity tests indicated its high safety. In summary, HL coacervate has broad clinical application prospects as a wound dressing material.
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Affiliation(s)
- Xiaoye Zhao
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Lin Wang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jushan Gao
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Xi Chen
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi'an, 710032, China
| | - Ke Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
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Guo X, Liu Y, Bera H, Zhang H, Chen Y, Cun D, Foderà V, Yang M. α-Lactalbumin-Based Nanofiber Dressings Improve Burn Wound Healing and Reduce Scarring. ACS APPLIED MATERIALS & INTERFACES 2020; 12:45702-45713. [PMID: 32667794 DOI: 10.1021/acsami.0c05175] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Skin wound especially burn injury is a major threat for public health. One of the pursuits in the current wound healing research is to identify new promising biological materials, which can not only promote tissue repair but also reduce scar formation. In this current study, the potentials of α-lactalbumin (ALA), a tryptophan-rich dietary protein acting as a precursor of neurotransmitter serotonin, to promote the burn wound healing and reduce the scar formation were investigated. The ALA was initially electrospun with polycaprolactone (PCL) to accomplish electrospun nanofibrous mats (ENMs), subsequently assessed for their physicochemical attributes and wound healing efficiency on a burn rat model, and then their healing mechanisms at cellular and molecular levels were explored. The results showed that ALA and PCL were physicochemically compatible in ENMs. The average diameter of various nanofibers was within 183-344 nm. Their wettability and mechanical properties could be readily modulated by adjusting the mass ratios of ALA and PCL from 1/9 to 1/2. The selected ENMs exhibited negligible cytotoxicity and satisfactory adhesion to fibroblasts and promoting the proliferation of the fibroblasts. As compared to pristine PCL based ENMs, the composite scaffolds could accelerate the wound healing process and exhibit effects comparable to a marketed wound dressing over 16 days. Moreover, the ALA/PCL based ENMs could increase the synthesis of type I collagen and decrease the expression of α-smooth muscle actin, conferring that the novel wound dressings could reduce the formation of scars. Collectively, this study demonstrates that the ALA is a promising biological material and could promote the regeneration of burn skins with reduced scar formation, when being loaded on ultrafine fibrous scaffolds, mimicking the structure of the natural extra cellular matrix.
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Affiliation(s)
- Xiong Guo
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road No. 103, 110016 Shenyang, China
| | - Yunen Liu
- Department of Emergency Medicine, General Hospital of Northern Theater Command, Laboratory of Rescue Center of Severe Trauma PLA, No. 83 Road, Shenhe District, 110016 Shenyang, China
| | - Hriday Bera
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road No. 103, 110016 Shenyang, China
| | - Haotian Zhang
- Department of Pharmacology, Shenyang Pharmaceutical University, Wenhua Road No. 103, 110016 Shenyang, China
| | - Yang Chen
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road No. 103, 110016 Shenyang, China
| | - Dongmei Cun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road No. 103, 110016 Shenyang, China
| | - Vito Foderà
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Mingshi Yang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road No. 103, 110016 Shenyang, China
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
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Rim MA, Choi JH, Park A, Youn J, Lee S, Kim NE, Song JE, Khang G. Characterization of Gelatin/Gellan Gum/Glycol Chitosan Ternary Hydrogel for Retinal Pigment Epithelial Tissue Reconstruction Materials. ACS APPLIED BIO MATERIALS 2020; 3:6079-6087. [PMID: 35021836 DOI: 10.1021/acsabm.0c00672] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The cellular transplantation approach to treat damaged or diseased retina is limited because of poor survival, distribution, and integration of cells after implantation to the sub-retinal space. To overcome this, it is important to develop a cell delivery system. In this study, a ternary hydrogel of gelatin (Ge)/gellan gum (GG)/glycol chitosan (CS) is suggested as a cell carrier for retinal tissue engineering (TE). Physicochemical properties such as porosity, swelling, sol fraction, and weight loss were measured. The mechanical study was performed with compressive strength and viscosity to confirm applicability in retinal TE. An in vitro experiment was carried out by encapsulating ARPE-19 in the designed hydrogel to measure viability and expression of retinal pigment epithelium-specific proteins and genes. The results showed that the ternary hydrogel system improves the mechanical properties and stability of the composite. Cell growth, survival, adhesion, and migration were enhanced as the CS was incorporated into the matrix. In particular, real-time polymerase chain reaction analysis showed a markedly improved specific gene expression rate in the Ge/GG/CS. Therefore, it is expected that the ternary system suggested in this study can be used as a promising material for retinal TE.
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Affiliation(s)
- Min A Rim
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Joo Hee Choi
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Ain Park
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Jina Youn
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Sumi Lee
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Na Eun Kim
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Jeong Eun Song
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Gilson Khang
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
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30
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Min D, Park S, Kim H, Lee SH, Ahn Y, Jung W, Kim HJ, Cho YW. Potential anti-ageing effect of chondroitin sulphate through skin regeneration. Int J Cosmet Sci 2020; 42:520-527. [PMID: 32583476 DOI: 10.1111/ics.12645] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 05/03/2020] [Accepted: 06/16/2020] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Skin ageing is inevitably exposed through its typical features such as wrinkles and sagging. Therefore, skin anti-ageing is a major issue in cosmetic research to prevent and improve ageing symptoms using effective ingredients. Chondroitin sulphate (CS), a type of glycosaminoglycan, is an important structural component of the extracellular matrix (ECM) and is involved in various biological processes, such as cell proliferation, differentiation and migration. Here, we aimed to investigate the effects of CS on skin regeneration and examine its efficacy as a potential safe and effective skin anti-ageing ingredient. METHODS We investigated the effects of CS on cell proliferation in normal human keratinocytes and fibroblasts. Then, cell migration, ECM synthesis and related signalling pathways were examined in fibroblasts through gene and protein expression analysis. Finally, the effect on skin wound healing and regeneration was validated using a full-thickness skin wound model and an aged skin model. RESULTS Chondroitin sulphate treatment increased the proliferation of keratinocytes and fibroblasts. It also stimulated the migration and synthesis of ECM components of fibroblasts. Further analysis revealed that CS induced the expression of type I procollagen by activating the extracellular signal-regulated kinase pathway. Using a full-thickness skin wound model and an aged skin model, we confirmed that CS treatment promoted skin wound healing and regeneration. CONCLUSION Together, our results indicated that CS has the potential to facilitate skin regeneration, implying that CS could be clinically applied to improve skin ageing.
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Affiliation(s)
- D Min
- Basic Research & Innovation Division, AMOREPACIFIC R&D Unit, Yongin, Republic of Korea.,Department of Chemical Engineering, Hanyang University, Ansan, Republic of Korea
| | - S Park
- Basic Research & Innovation Division, AMOREPACIFIC R&D Unit, Yongin, Republic of Korea
| | - H Kim
- AMOREPACIFIC R&D Unit, Yongin, Republic of Korea
| | - S H Lee
- Basic Research & Innovation Division, AMOREPACIFIC R&D Unit, Yongin, Republic of Korea
| | - Y Ahn
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - W Jung
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - H-J Kim
- Basic Research & Innovation Division, AMOREPACIFIC R&D Unit, Yongin, Republic of Korea
| | - Y W Cho
- Department of Chemical Engineering, Hanyang University, Ansan, Republic of Korea
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Cassimjee H, Kumar P, Choonara YE, Pillay V. Proteosaccharide combinations for tissue engineering applications. Carbohydr Polym 2020; 235:115932. [DOI: 10.1016/j.carbpol.2020.115932] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/21/2020] [Accepted: 01/28/2020] [Indexed: 12/14/2022]
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Rameshbabu AP, Bankoti K, Datta S, Subramani E, Apoorva A, Ghosh P, Jana S, Manchikanti P, Roy S, Chaudhury K, Dhara S. Bioinspired 3D porous human placental derived extracellular matrix/silk fibroin sponges for accelerated bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 113:110990. [PMID: 32487403 DOI: 10.1016/j.msec.2020.110990] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 04/06/2020] [Accepted: 04/18/2020] [Indexed: 12/16/2022]
Abstract
Critical bone defects arising from traumatic injury and diseases are of major health concern since they are unable to heal spontaneously without clinical intervention. In this context, bone tissue engineering provides an attractive approach to treat bone defects by providing a bioactive template which has the potential to guide osseous tissue regeneration. In this study, porous hybrid placental extracellular matrix sponge (PIMS) was fabricated by a combinatorial method using silk fibroin (SF)/placental derived extracellular matrix and subsequently evaluated its efficacy towards bone tissue regeneration. The presence of intrinsic growth factors was evidenced by immunoblotting of the extracted proteins derived from the placental derived extracellular matrix. This growth factor rich PIMS lends a unique bioactive scaffolding to human amniotic mesenchymal stem cells (HAMSCs) which supported enhanced proliferation as well as superior osteogenic differentiation. Gene expression studies demonstrated significant up-regulation of osteogenic related genes in the PIMS group. PIMS when implanted in the chick chorioallantoic membrane, significantly attracted allantoic vessels revealing its potential to stimulate angiogenesis ex vivo. Furthermore, no severe immune response to the host was observed on subcutaneous implantation of PIMS in vivo. Instead, it supported the formation of blood vessels, revealing its outstanding biocompatibility. Additionally, critical tibial defects treated with PIMS demonstrated higher bone volume after six weeks when analyzed by micro-CT, which was accompanied by high mineral density. Histological and immunofluorescence studies validated the results and revealed enhanced osseous tissue regeneration after six weeks of surgery. All these findings recapitulated that the growth factors incorporated bioactive PIMS could perform as an appropriate matrix for osteogenic differentiation and efficient bone regeneration.
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Affiliation(s)
- Arun Prabhu Rameshbabu
- Biomaterials and Tissue Engineering Laboratory, School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Kamakshi Bankoti
- Biomaterials and Tissue Engineering Laboratory, School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Sayanti Datta
- Biomaterials and Tissue Engineering Laboratory, School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Elavarasan Subramani
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Anupam Apoorva
- School of Bio Science, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Paulomi Ghosh
- CSIR-Indian Institute of Chemical Biology, Kolkata, West Bengal 700032, India
| | - Subhodeep Jana
- Biomaterials and Tissue Engineering Laboratory, School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Padmavati Manchikanti
- School of Energy Science & Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Sabyasachi Roy
- Department of Gynaecology, Midnapore Medical College, Paschim Medinipur 721101, India
| | - Koel Chaudhury
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Santanu Dhara
- Biomaterials and Tissue Engineering Laboratory, School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
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Azimzadeh Asiabi P, Ramazani A, Khoobi M, Amin M, Shakoori M, Mirmohammad Sadegh N, Farhadi R. Regenerated silk fibroin-based dressing modified with carnosine-bentonite nanosheets accelerates healing of second-degree burn wound. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01155-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Guan Y, You H, Cai J, Zhang Q, Yan S, You R. Physically crosslinked silk fibroin/hyaluronic acid scaffolds. Carbohydr Polym 2020; 239:116232. [PMID: 32414432 DOI: 10.1016/j.carbpol.2020.116232] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/12/2020] [Accepted: 03/27/2020] [Indexed: 12/29/2022]
Abstract
Combining the properties of natural protein and polysaccharide is a promising strategy to generate bioactive biomaterials with controlled structure. Here, a new method of preparing water-insoluble silk fibroin/hyaluronic acid (SF/HA) scaffolds with tunable performances using an all-aqueous process is reported. Freezing-induced assembly was used to form silk I crystallization in the SF/HA blends. Silk I crystallization enhanced the stability of SF/HA scaffolds in water by forming silk I crystal networks to entrap blended HA without chemical cross-linking. Increasing HA content significantly enhanced the flexibility and water binding capacity of porous scaffolds, but high amount of HA reduced the water-stability of porous scaffolds due to insufficient silk I crystal cross-links. The enzymatic degradation behavior of the SF/HA scaffolds was investigated, revealing that the regulation ability of HA in the SF scaffolds. This novel nonchemically cross-linked protein/polysaccharide scaffold may be useful for soft tissue engineering due to excellent biocompatibility and tunable performances.
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Affiliation(s)
- Yupin Guan
- State Key Laboratory for Hubei New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan, 430200, China
| | - Haining You
- State Key Laboratory for Hubei New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan, 430200, China
| | - Junyi Cai
- State Key Laboratory for Hubei New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan, 430200, China
| | - Qiang Zhang
- State Key Laboratory for Hubei New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan, 430200, China
| | - Shuqin Yan
- State Key Laboratory for Hubei New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan, 430200, China
| | - Renchuan You
- State Key Laboratory for Hubei New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan, 430200, China.
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Elahi M, Ali S, Tahir HM, Mushtaq R, Bhatti MF. Sericin and fibroin nanoparticles—natural product for cancer therapy: a comprehensive review. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2019.1706515] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Mehreen Elahi
- Department of Zoology, Government College University, Lahore, Pakistan
| | - Shaukat Ali
- Department of Zoology, Government College University, Lahore, Pakistan
| | | | - Rabia Mushtaq
- Department of Zoology, Government College University, Lahore, Pakistan
| | - Muhammad Farooq Bhatti
- Department of Zoology, Government College University, Lahore, Pakistan
- Sericulture Wing, Forest Department, Lahore, Pakistan
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Chouhan D, Mandal BB. Silk biomaterials in wound healing and skin regeneration therapeutics: From bench to bedside. Acta Biomater 2020; 103:24-51. [PMID: 31805409 DOI: 10.1016/j.actbio.2019.11.050] [Citation(s) in RCA: 151] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 11/25/2019] [Accepted: 11/26/2019] [Indexed: 02/08/2023]
Abstract
Silk biomaterials are known for biomedical and tissue engineering applications including drug delivery and implantable devices owing to their biocompatible and a wide range of ideal physico-chemical properties. Herein, we present a critical overview of the progress of silk-based matrices in skin regeneration therapeutics with an emphasis on recent innovations and scientific findings. Beginning with a brief description of numerous varieties of silks, the review summarizes our current understanding of the biological properties of silk that help in the wound healing process. Various silk varieties such as silkworm silk fibroin, silk sericin, native spider silk and recombinant silk materials have been explored for cutaneous wound healing applications from the past few decades. With an aim to harness the regenerative properties of silk, numerous strategies have been applied to develop functional bioactive wound dressings and viable bio-artificial skin grafts in recent times. The review examines multiple inherent properties of silk that aid in the critical events of the healing process such as cell migration, cell proliferation, angiogenesis, and re-epithelialization. A detailed insight into the progress of silk-based cellular skin grafts is also provided that discusses various co-culture strategies and development of bilayer and tri-layer human skin equivalent under in vitro conditions. In addition, functionalized silk matrices loaded with bioactive molecules and antibacterial compounds are discussed, which have shown great potential in treating hard-to-heal wounds. Finally, clinical studies performed using silk-based translational products are reviewed that validate their regenerative properties and future applications in this area. STATEMENT OF SIGNIFICANCE: The review article discusses the recent advances in silk-based technologies for wound healing applications, covering various types of silk biomaterials and their properties suitable for wound repair and regeneration. The article demonstrates the progress of silk-based matrices with an update on the patented technologies and clinical advancements over the years. The rationale behind this review is to highlight numerous properties of silk biomaterials that aid in all the critical events of the wound healing process towards skin regeneration. Functionalization strategies to fabricate silk dressings containing bioactive molecules and antimicrobial compounds for drug delivery to the wound bed are discussed. In addition, a separate section describes the approaches taken to generate living human skin equivalent that have recently contributed in the field of skin tissue engineering.
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Bharadwaz A, Jayasuriya AC. Recent trends in the application of widely used natural and synthetic polymer nanocomposites in bone tissue regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 110:110698. [PMID: 32204012 DOI: 10.1016/j.msec.2020.110698] [Citation(s) in RCA: 296] [Impact Index Per Article: 74.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 01/02/2020] [Accepted: 01/25/2020] [Indexed: 12/16/2022]
Abstract
The goal of a biomaterial is to support the bone tissue regeneration process at the defect site and eventually degrade in situ and get replaced with the newly generated bone tissue. Nanocomposite biomaterials are a relatively new class of materials that incorporate a biopolymeric and biodegradable matrix structure with bioactive and easily resorbable fillers which are nano-sized. This article is a review of a few polymeric nanocomposite biomaterials which are potential candidates for bone tissue regeneration. These nanocomposites have been broadly classified into two groups viz. natural and synthetic polymer based. Natural polymer-based nanocomposites include materials fabricated through reinforcement of nanoparticles and/or nanofibers in a natural polymer matrix. Several widely used natural biopolymers, such as chitosan (CS), collagen (Col), cellulose, silk fibroin (SF), alginate, and fucoidan, have been reviewed regarding their present investigation on the incorporation of nanomaterial, biocompatibility, and tissue regeneration. Synthetic polymer-based nanocomposites that have been covered in this review include polycaprolactone (PCL), poly (lactic-co-glycolic) acid (PLGA), polyethylene glycol (PEG), poly (lactic acid) (PLA), and polyurethane (PU) based nanocomposites. An array of nanofillers, such as nano hydroxyapatite (nHA), nano zirconia (nZr), nano silica (nSi), silver nano particles (AgNPs), nano titanium dioxide (nTiO2), graphene oxide (GO), that is used widely across the bone tissue regeneration research platform are included in this review with respect to their incorporation into a natural and/or synthetic polymer matrix. The influence of nanofillers on cell viability, both in vitro and in vivo, along with cytocompatibility and new tissue generation has been encompassed in this review. Moreover, nanocomposite material characterization using some commonly used analytical techniques, such as electron microscopy, spectroscopy, diffraction patterns etc., has been highlighted in this review. Biomaterial physical properties, such as pore size, porosity, particle size, and mechanical strength which strongly influences cell attachment, proliferation, and subsequent tissue growth has been covered in this review. This review has been sculptured around a case by case basis of current research that is being undertaken in the field of bone regeneration engineering. The nanofillers induced into the polymeric matrix render important properties, such as large surface area, improved mechanical strength as well as stability, improved cell adhesion, proliferation, and cell differentiation. The selection of nanocomposites is thus crucial in the analysis of viable treatment strategies for bone tissue regeneration for specific bone defects such as craniofacial defects. The effects of growth factor incorporation on the nanocomposite for controlling new bone generation are also important during the biomaterial design phase.
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Affiliation(s)
- Angshuman Bharadwaz
- Biomedical Engineering Program, Department of Bioengineering, College of Engineering, The University of Toledo, Toledo, OH, USA
| | - Ambalangodage C Jayasuriya
- Biomedical Engineering Program, Department of Bioengineering, College of Engineering, The University of Toledo, Toledo, OH, USA; Department of Orthopaedic Surgery, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH, USA.
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Gisbert Roca F, Lozano Picazo P, Pérez-Rigueiro J, Guinea Tortuero GV, Monleón Pradas M, Martínez-Ramos C. Conduits based on the combination of hyaluronic acid and silk fibroin: Characterization, in vitro studies and in vivo biocompatibility. Int J Biol Macromol 2020; 148:378-390. [PMID: 31954793 DOI: 10.1016/j.ijbiomac.2020.01.149] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/27/2019] [Accepted: 01/15/2020] [Indexed: 12/11/2022]
Abstract
We address the production of structures intended as conduits made from natural biopolymers, capable of promoting the regeneration of axonal tracts. We combine hyaluronic acid (HA) and silk fibroin (SF) with the aim of improving mechanical and biological properties of HA. The results show that SF can be efficiently incorporated into the production process, obtaining conduits with tubular structure with a matrix of HA-SF blend. HA-SF has better mechanical properties than sole HA, which is a very soft hydrogel, facilitating manipulation. Culture of rat Schwann cells shows that cell adhesion and proliferation are higher than in pure HA, maybe due to the binding motifs contributed by the SF protein. This increased proliferation accelerates the formation of a tight cell layer, which covers the inner channel surface of the HA-SF tubes. Biocompatibility of the scaffolds was studied in immunocompetent mice. Both HA and HA-SF scaffolds were accepted by the host with no residual immune response at 8 weeks. New collagen extracellular matrix and new blood vessels were visible and they were present earlier when SF was present. The results show that incorporation of SF enhances the mechanical properties of the materials and results in promising biocompatible conduits for tubulization strategies.
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Affiliation(s)
- Fernando Gisbert Roca
- Center for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Cno. de Vera s/n, 46022 Valencia, Spain
| | - Paloma Lozano Picazo
- Centro de Tecnología Biomédica, Universidad Politécnica de Madrid, 28223 Pozuelo de Alarcón, Madrid, Spain; Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - José Pérez-Rigueiro
- CIBER-BBN, Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine, Spain; Centro de Tecnología Biomédica, Universidad Politécnica de Madrid, 28223 Pozuelo de Alarcón, Madrid, Spain; Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - Gustavo Victor Guinea Tortuero
- CIBER-BBN, Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine, Spain; Centro de Tecnología Biomédica, Universidad Politécnica de Madrid, 28223 Pozuelo de Alarcón, Madrid, Spain; Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - Manuel Monleón Pradas
- Center for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Cno. de Vera s/n, 46022 Valencia, Spain; CIBER-BBN, Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine, Spain
| | - Cristina Martínez-Ramos
- Center for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Cno. de Vera s/n, 46022 Valencia, Spain; Department of Medicine, Universitat Jaume I, Av. Vicent-Sos Baynat s/n, Castellón 12071, Spain..
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Liang A, Zhang M, Luo H, Niu L, Feng Y, Li M. Porous Poly(Hexamethylene Biguanide) Hydrochloride Loaded Silk Fibroin Sponges with Antibacterial Function. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E285. [PMID: 31936365 PMCID: PMC7013801 DOI: 10.3390/ma13020285] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 01/03/2020] [Accepted: 01/06/2020] [Indexed: 11/17/2022]
Abstract
In order to endue silk fibroin (SF) sponges with antibacterial function, positively charged poly(hexamethylene biguanide) hydrochloride (PHMB) was incorporated in SF through electrostatic interaction and by freeze-drying technique. The influence of PHMB on the structure and antibacterial activities of SF sponges was investigated. The zeta potential of SF was increased significantly when PHMB was incorporated in SF. The pores with size from 80 to 300 µm and the microscale holes in the pore walls within PHMB-loaded SF sponges provided the channels of PHMB release. The PHMB loaded in the porous sponges showed continuous and slow release for up to 20 days. Effective growth inhibition of both Escherichia coli and Staphylococcus aureus was achieved when the mass ratio of PHMB/SF was higher than 2/100. These results suggest that the porous PHMB/SF sponges have the potential to be used as a novel wound dressing for open skin wounds.
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Affiliation(s)
| | | | | | | | | | - Mingzhong Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China; (A.L.); (M.Z.); (H.L.); (L.N.); (Y.F.)
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Silk fibroin for skin injury repair: Where do things stand? Adv Drug Deliv Rev 2020; 153:28-53. [PMID: 31678360 DOI: 10.1016/j.addr.2019.09.003] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 09/12/2019] [Accepted: 09/26/2019] [Indexed: 12/29/2022]
Abstract
Several synthetic and natural materials are used in soft tissue engineering and regenerative medicine with varying degrees of success. Among them, silkworm silk protein fibroin, a naturally occurring protein-based biomaterial, exhibits many promising characteristics such as biocompatibility, controllable biodegradability, tunable mechanical properties, aqueous preparation, minimal inflammation in host tissue, low cost and ease of use. Silk fibroin is often used alone or in combination with other materials in various formats and is also a promising delivery system for bioactive compounds as part of such repair scenarios. These properties make silk fibroin an excellent biomaterial for skin tissue engineering and repair applications. This review focuses on the promising characteristics and recent advances in the use of silk fibroin for skin wound healing and/or soft-tissue repair applications. The benefits and limitations of silk fibroin as a scaffolding biomaterial in this context are also discussed. STATEMENT OF SIGNIFICANCE: Silk protein fibroin is a natural biomaterial with important biological and mechanical properties for soft tissue engineering applications. Silk fibroin is obtained from silkworms and can be purified using alkali or enzyme based degumming (removal of glue protein sericin) procedures. Fibroin is used alone or in combination with other materials in different scaffold forms, such as nanofibrous mats, hydrogels, sponges or films tailored for specific applications. The investigations carried out using silk fibroin or its blends in skin tissue engineering have increased dramatically in recent years due to the advantages of this unique biomaterial. This review focuses on the promising characteristics of silk fibroin for skin wound healing and/or soft-tissue repair applications.
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Bi X, Li L, Mao Z, Liu B, Yang L, He W, Fan Y, Li X. The effects of silk layer-by-layer surface modification on the mechanical and structural retention of extracellular matrix scaffolds. Biomater Sci 2020; 8:4026-4038. [DOI: 10.1039/d0bm00448k] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The SF layer-by-layer surface functionalized SIS membrane exhibits tunable mechanical properties and degradation rate, satisfactory biocompatibility and good bioactivity.
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Affiliation(s)
- Xuewei Bi
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Linhao Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Zhinan Mao
- International Research Center for Advanced Structural and Biomaterials
- School of Materials Science & Engineering
- Beihang University
- Beijing 100191
- China
| | - Bo Liu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Lingbing Yang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Wei He
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
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Wang L, Fang M, Xia Y, Hou J, Nan X, Zhao B, Wang X. Preparation and biological properties of silk fibroin/nano-hydroxyapatite/graphene oxide scaffolds with an oriented channel-like structure. RSC Adv 2020; 10:10118-10128. [PMID: 35498577 PMCID: PMC9050210 DOI: 10.1039/c9ra09710d] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 02/24/2020] [Indexed: 11/21/2022] Open
Abstract
A novel SF/nHAp/GO hybrid scaffold with oriented channel-like structure in bone tissue engineering.
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Affiliation(s)
- Lu Wang
- School and Hospital of Stomatology
- Shanxi Medical University
- Taiyuan 030001
- China
| | - Min Fang
- School and Hospital of Stomatology
- Shanxi Medical University
- Taiyuan 030001
- China
| | - Yijing Xia
- School and Hospital of Stomatology
- Shanxi Medical University
- Taiyuan 030001
- China
| | - Jiaxin Hou
- School and Hospital of Stomatology
- Shanxi Medical University
- Taiyuan 030001
- China
| | - Xiaoru Nan
- School and Hospital of Stomatology
- Shanxi Medical University
- Taiyuan 030001
- China
| | - Bin Zhao
- School and Hospital of Stomatology
- Shanxi Medical University
- Taiyuan 030001
- China
| | - Xiangyu Wang
- School and Hospital of Stomatology
- Shanxi Medical University
- Taiyuan 030001
- China
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Arasteh S, Katebifar S, Shirazi R, Kazemnejad S. Differentiation of Menstrual Blood Stem Cells into Keratinocyte-Like Cells on Bilayer Nanofibrous Scaffold. Methods Mol Biol 2020; 2125:129-156. [PMID: 30187401 DOI: 10.1007/7651_2018_193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Skin tissue engineering is a high-throughput technology to heal the wounds. Already, considerable advances have been achieved using stem cells for wound healing applications. Menstrual blood stem cell (MenSC) is an available and accessible source of stem cells that have differentiation potential into a wide range of lineages like keratinocytes. Extracellular matrix like substratum plays an impressive role in skin regeneration as an attachment site for stem cells by transmitting the bioactive signals and provoking stem cells to differentiate into keratinocyte lineage. The biomimetic nanofibrous scaffold especially in bilayer format has been extensively utilized to develop skin equivalents. This chapter explains detailed protocols of keratinocyte differentiation of MenSCs on bilayer scaffold comprising amniotic membrane and fibroin nanofibers. The isolated MenSCs are seeded on the nanofibers and subsequently differentiated into keratinocyte lineage in co-culture with foreskin-derived keratinocytes. Immunofluorescence staining is used to evaluate the development of seeded MenSCs in bilayer scaffold into keratinocyte-like cells.
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Affiliation(s)
- Shaghayegh Arasteh
- Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Sara Katebifar
- Biomedical Engineering Department, University of Connecticut, Hartford, CT, USA
| | - Reza Shirazi
- Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Somaieh Kazemnejad
- Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.
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Leung CM, Dhand C, Mayandi V, Ramalingam R, Lim FP, Barathi VA, Dwivedi N, Orive G, Beuerman RW, Ramakrishna S, Toh YC, Loh XJ, Verma NK, Chua AWC, Lakshminarayanan R. Wound healing properties of magnesium mineralized antimicrobial nanofibre dressings containing chondroitin sulphate – a comparison between blend and core–shell nanofibres. Biomater Sci 2020; 8:3454-3471. [DOI: 10.1039/d0bm00530d] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Effect of chondroitin sulphate incorporated PCL/gelatin as blends or core–shell composite nanofibres are compared in terms of their biocompatibility for skin cells and wound healing in porcine model of partial thickness burns.
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45
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Luetchford KA, Chaudhuri JB, De Bank PA. Silk fibroin/gelatin microcarriers as scaffolds for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 106:110116. [PMID: 31753329 PMCID: PMC6891254 DOI: 10.1016/j.msec.2019.110116] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 06/06/2019] [Accepted: 08/22/2019] [Indexed: 01/26/2023]
Abstract
Microcarrier cell scaffolds have potential as injectable cell delivery vehicles or as building blocks for tissue engineering. The use of small cell carriers allows for a 'bottom up' approach to tissue assembly when moulding microparticles into larger structures, which can facilitate the introduction of hierarchy by layering different matrices and cell types, while evenly distributing cells through the structure. In this work, silk fibroin (SF), purified from Bombyx mori cocoons, was blended with gelatin (G) to produce materials composed of varying ratios of the two components (SF: G 25:75, 50:50, and 75:25). Cell compatibility to these materials was first confirmed in two-dimensional culture and found to be equivalent to standard tissue culture plastic, and better than SF or G alone. The mechanical properties of the blends were investigated and the blended materials were found to have increased Young's moduli over SF alone. Microcarriers of SF/G blends with defined diameters were generated in a reproducible manner through the use of an axisymmetric flow focussing device, constructed from off-the-shelf parts and fittings. These SF/G microcarriers supported adhesion of rat mesenchymal stem cells with high degrees of efficiency under dynamic culture conditions and, after culturing in osteogenic differentiation medium, cells were shown to have characteristics typical of osteoblasts. This work illustrates that microcarriers composed of SF/G blends are promising building blocks for osteogenic tissue engineering.
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Affiliation(s)
- Kim A Luetchford
- Department of Pharmacy & Pharmacology, University of Bath, Bath, BA2 7AY, UK
| | - Julian B Chaudhuri
- Department of Chemical Engineering, University of Bath, Bath, BA2 7AY, UK
| | - Paul A De Bank
- Department of Pharmacy & Pharmacology, University of Bath, Bath, BA2 7AY, UK.
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Wang Y, Fan S, Li Y, Niu C, Li X, Guo Y, Zhang J, Shi J, Wang X. Silk fibroin/sodium alginate composite porous materials with controllable degradation. Int J Biol Macromol 2019; 150:1314-1322. [PMID: 31747567 DOI: 10.1016/j.ijbiomac.2019.10.141] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 10/15/2019] [Accepted: 10/15/2019] [Indexed: 01/13/2023]
Abstract
In this study, silk fibroin (SF)/sodium alginate (SA) porous materials (PMs) with different blend ratios were generated using 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) as crosslinking agent by a simple freeze-dried method. Degradation experiment of SF/SA PMs have been systematically investigated up to 18 days in Collagenase IA solution at 37 °C, Phosphate buffer saline (PBS) solution without enzyme was used as a control. The results showed SF/SA 50/50 PMs exhibited a lowest rate of weight loss, about 68% of the weight retained within 18 d in Collagenase IA solution. SEM images indicated Collagenase IA can degrade fibroin leading to collapse of the pure SF PMs, while SF/SA 50/50 PMs still possessed integrity of pore structure during enzyme degradation with increasing exposure time. The crystalline structure of the SF in the SF/SA PMs changed to silk II after degradation for 18 d. Furthermore, the results of the in vivo degradation by subcutaneous implantation in rats showed that all PMs can be degraded at different levels, and exhibited good subcutaneous histocompatibility to the host animals. The degradability was strongly correlated to the blend ratios in a series of SF/SA composite PMs, and insights gained in this study can serve as a guide to match desired degradation behavior with specific applications for the SF/SA composite PMs.
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Affiliation(s)
- Yiyu Wang
- Hubei Province Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hubei Engineering University, Xiaogan 432000, People's Republic of China
| | - Sisi Fan
- Hubei Province Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hubei Engineering University, Xiaogan 432000, People's Republic of China
| | - Yuwei Li
- Hubei Province Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hubei Engineering University, Xiaogan 432000, People's Republic of China
| | - Chunqing Niu
- Hubei Province Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hubei Engineering University, Xiaogan 432000, People's Republic of China
| | - Xiang Li
- Hubei Province Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hubei Engineering University, Xiaogan 432000, People's Republic of China
| | - Yajin Guo
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, People's Republic of China; Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, People's Republic of China
| | - Junhua Zhang
- Hubei Province Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hubei Engineering University, Xiaogan 432000, People's Republic of China
| | - Jian Shi
- Department of Machine Intelligence and Systems Engineering, Faculty of Systems Science and Technology, Akita Prefectural University, Akita 015-0055, Japan
| | - Xinyu Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, People's Republic of China; Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, People's Republic of China.
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Cai H, Wu B, Li Y, Liu Y, Shi L, Gong L, Xia Y, Heng BC, Wu H, Ouyang H, Zhu Z, Zou X. Local Delivery of Silk-Cellulose Incorporated with Stromal Cell-Derived Factor-1α Functionally Improves the Uterus Repair. Tissue Eng Part A 2019; 25:1514-1526. [PMID: 30838933 DOI: 10.1089/ten.tea.2018.0283] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Severe infection and mechanical injury of the uterus may lead to infertility and miscarriage. Currently, there is a lack of effective treatment modality for functional repair of uterine injury. To address this clinical challenge, this study aimed to develop a chemotactic composite scaffold by incorporating recombinant human stromal cell-derived factor-1α (rhSDF-1α) into a silk fibroin-bacterial cellulose (SF-BC) membrane carrier. A rat model of uterine injury was utilized for this study, which was composed of three groups as follows: blank control, implantation with SF-BC only, or SF-BC loaded with rhSDF-1α. The tissue regeneration efficacy of the three groups was analyzed and compared. The results showed that SF-BC loaded with rhSDF-1α significantly enhanced endometrial regeneration and arteriogenesis of the injured rat uterus, which led to improved pregnancy outcomes, thus indicating much promise for functional uterine repair and regeneration. Impact Statement In this study, we demonstrated that the silk fibroin-bacterial cellulose (SF-BC) membrane possessed good physical, chemical, and biocompatibility properties in vitro. The in vivo study showed that the incorporation of recombinant human stromal cell-derived factor-1α (rhSDF-1α) within the SF-BC membrane promoted regeneration of full-thickness uterine injury and also improved the pregnancy outcome of the damaged uterus. The results thus suggest that SF-BC loaded with rhSDF-1α has good potential in future clinical applications for the repair of uterine injury.
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Affiliation(s)
- Hongxia Cai
- Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, P.R. China
- Zhejiang Provincial Key Laboratory of Tissue Engineering and Regenerative Medicine, Hangzhou, P.R. China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regeneration Medicine, Zhejiang University, Hangzhou, P.R. China
| | - Bingbing Wu
- Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, P.R. China
- Zhejiang Provincial Key Laboratory of Tissue Engineering and Regenerative Medicine, Hangzhou, P.R. China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regeneration Medicine, Zhejiang University, Hangzhou, P.R. China
| | - Yu Li
- Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, P.R. China
- Zhejiang Provincial Key Laboratory of Tissue Engineering and Regenerative Medicine, Hangzhou, P.R. China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regeneration Medicine, Zhejiang University, Hangzhou, P.R. China
| | - Yixiao Liu
- Zhejiang Provincial Key Laboratory of Tissue Engineering and Regenerative Medicine, Hangzhou, P.R. China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regeneration Medicine, Zhejiang University, Hangzhou, P.R. China
| | - Libing Shi
- Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, P.R. China
- Zhejiang Provincial Key Laboratory of Tissue Engineering and Regenerative Medicine, Hangzhou, P.R. China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regeneration Medicine, Zhejiang University, Hangzhou, P.R. China
| | - Lin Gong
- Zhejiang Provincial Key Laboratory of Tissue Engineering and Regenerative Medicine, Hangzhou, P.R. China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regeneration Medicine, Zhejiang University, Hangzhou, P.R. China
| | - Yaxian Xia
- Department of Gynecology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, P.R. China
| | - Boon Chin Heng
- Department of Endodontology, Faculty of Dentistry, The University of Hong Kong, Pokfulam, P.R. China
| | - Huiling Wu
- Department of Aesthetic Plastic Surgery Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, P.R. China
| | - Hongwei Ouyang
- Zhejiang Provincial Key Laboratory of Tissue Engineering and Regenerative Medicine, Hangzhou, P.R. China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regeneration Medicine, Zhejiang University, Hangzhou, P.R. China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, P.R. China
| | - Zhenghua Zhu
- Department of Application Engineering, Zhejiang Institute of Economics and Trade, Hangzhou, P.R. China
| | - Xiaohui Zou
- Clinical Research Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, P.R. China
- Zhejiang Provincial Key Laboratory of Tissue Engineering and Regenerative Medicine, Hangzhou, P.R. China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regeneration Medicine, Zhejiang University, Hangzhou, P.R. China
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Li X, Li A, Feng F, Jiang Q, Sun H, Chai Y, Yang R, Wang Z, Hou J, Li R. Effect of the hyaluronic acid-poloxamer hydrogel on skin-wound healing: in vitro and in vivo studies. Animal Model Exp Med 2019; 2:107-113. [PMID: 31392303 PMCID: PMC6600631 DOI: 10.1002/ame2.12067] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 03/05/2019] [Accepted: 03/20/2019] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Recent research into skin injury and wound healing has focused mainly on post-trauma hemostasis, infection prevention, dermal regeneration and angiogenesis. However, less attention has been paid to air permeability and moisture loss prevention which also play important roles in injury healing. METHODS In the present work, we prepared a hyaluronic acid-poloxamer (HA-POL) hydrogel and tested the therapeutic effect of the hydrogel on skin-wound healing. RESULTS The HA-POL hydrogel transformed from sol to gel at 30°C, close to body temperature, and had stable moisturizing properties. HA-POL hydrogel promoted skin-wound healing and increased protein accumulation in the wound area. HA-POL hydrogel allowed greater air permeability than Band-aid, a typical wound covering. Results from transwell assays showed that the HA-POL hydrogel effectively isolated skin-wounds from bacterial invasion. CONCLUSION This work demonstrates the advantages of using HA-POL gel materials in the treatment of cutaneous wounds.
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Affiliation(s)
- Xiaojuan Li
- Research Center for Clinical and Translational MedicineFifth Medical CenterGeneral Hospital of Chinese PLABeijingPeople's Republic of China
| | - Aimin Li
- Department of Rheumatology and ImmunologyFifth Hospital of Qingdao CityQingdaoShandong ProvincePeople's Republic of China
| | - Fan Feng
- Research Center for Clinical and Translational MedicineFifth Medical CenterGeneral Hospital of Chinese PLABeijingPeople's Republic of China
- Center for Clinical LaboratoryFifth Medical CenterGeneral Hospital of Chinese PLABeijingPeople's Republic of China
| | - Qiyu Jiang
- Center for Clinical LaboratoryFifth Medical CenterGeneral Hospital of Chinese PLABeijingPeople's Republic of China
| | - Huiwei Sun
- Research Center for Clinical and Translational MedicineFifth Medical CenterGeneral Hospital of Chinese PLABeijingPeople's Republic of China
| | - Yantao Chai
- Research Center for Clinical and Translational MedicineFifth Medical CenterGeneral Hospital of Chinese PLABeijingPeople's Republic of China
| | - Ruichuang Yang
- Research Center for Clinical and Translational MedicineFifth Medical CenterGeneral Hospital of Chinese PLABeijingPeople's Republic of China
| | - Zhijie Wang
- Research Center for Clinical and Translational MedicineFifth Medical CenterGeneral Hospital of Chinese PLABeijingPeople's Republic of China
| | - Jun Hou
- Research Center for Clinical and Translational MedicineFifth Medical CenterGeneral Hospital of Chinese PLABeijingPeople's Republic of China
| | - Ruisheng Li
- Research Center for Clinical and Translational MedicineFifth Medical CenterGeneral Hospital of Chinese PLABeijingPeople's Republic of China
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50
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Du X, Wei D, Huang L, Zhu M, Zhang Y, Zhu Y. 3D printing of mesoporous bioactive glass/silk fibroin composite scaffolds for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109731. [PMID: 31349472 DOI: 10.1016/j.msec.2019.05.016] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 05/08/2019] [Accepted: 05/08/2019] [Indexed: 12/26/2022]
Abstract
The fabrication of bone tissue engineering scaffolds with high osteogenic ability and favorable mechanical properties is of huge interest. In this study, a silk fibroin (SF) solution of 30 wt% was extracted from cocoons and combined with mesoporous bioactive glass (MBG) to fabricate MBG/SF composite scaffolds by 3D printing. The porosity, compressive strength, degradation and apatite forming ability were evaluated. The results illustrated that MBG/SF scaffolds had superior compressive strength (ca. 20 MPa) and good biocompatibility, and stimulated bone formation ability compared to mesoporous bioactive glass/polycaprolactone (MBG/PCL) scaffolds. We subcutaneously transplanted hBMSCs-loaded MBG/SF and MBG/PCL scaffolds into the back of nude mice to evaluate heterotopic bone formation assay in vivo, and the results revealed that the gene expression levels of common osteogenic biomarkers on MBG/SF scaffolds were significantly better than MBG/PCL scaffolds. These results showed that 3D-printed MBG/SF composite scaffolds are great promising for bone tissue engineering.
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Affiliation(s)
- Xiaoyu Du
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory for Advanced Fiber and Low-Dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China
| | - Daixu Wei
- College of Life Sciences and Medicine, Northwest University, Xi'an, Shanxi 710069, PR China
| | - Li Huang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory for Advanced Fiber and Low-Dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China
| | - Min Zhu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Yaopeng Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory for Advanced Fiber and Low-Dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China.
| | - Yufang Zhu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory for Advanced Fiber and Low-Dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, PR China.
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