1
|
Dos Santos FV, Siqueira RL, de Morais Ramos L, Yoshioka SA, Branciforti MC, Correa DS. Silk fibroin-derived electrospun materials for biomedical applications: A review. Int J Biol Macromol 2024; 254:127641. [PMID: 37913875 DOI: 10.1016/j.ijbiomac.2023.127641] [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: 07/27/2023] [Revised: 10/14/2023] [Accepted: 10/22/2023] [Indexed: 11/03/2023]
Abstract
Electrospinning is a versatile technique for fabricating polymeric fibers with diameters ranging from micro- to nanoscale, exhibiting multiple morphologies and arrangements. By combining silk fibroin (SF) with synthetic and/or natural polymers, electrospun materials with outstanding biological, chemical, electrical, physical, mechanical, and optical properties can be achieved, fulfilling the evolving biomedical demands. This review highlights the remarkable versatility of SF-derived electrospun materials, specifically focusing on their application in tissue regeneration (including cartilage, cornea, nerves, blood vessels, bones, and skin), disease treatment (such as cancer and diabetes), and the development of controlled drug delivery systems. Additionally, we explore the potential future trends in utilizing these nanofibrous materials for creating intelligent biomaterials, incorporating biosensors and wearable sensors for monitoring human health, and also discuss the bottlenecks for its widespread use. This comprehensive overview illuminates the significant impact and exciting prospects of SF-derived electrospun materials in advancing biomedical research and applications.
Collapse
Affiliation(s)
- Francisco Vieira Dos Santos
- Nanotechnology National Laboratory for Agriculture, Embrapa Instrumentação, 13560-970 São Carlos, SP, Brazil; Materials Engineering Department, São Carlos School of Engineering, University of São Paulo, 13563-120 São Carlos, SP, Brazil
| | - Renato Luiz Siqueira
- Materials Engineering Department, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Lucas de Morais Ramos
- São Carlos Institute of Physics, University of São Paulo, 13560-970 São Carlos, SP, Brazil
| | - Sérgio Akinobu Yoshioka
- Laboratory of Biochemistry and Biomaterials, São Carlos Institute of Chemistry, University of São Paulo, 13560-970 São Carlos, SP, Brazil
| | - Márcia Cristina Branciforti
- Materials Engineering Department, São Carlos School of Engineering, University of São Paulo, 13563-120 São Carlos, SP, Brazil
| | - Daniel Souza Correa
- Nanotechnology National Laboratory for Agriculture, Embrapa Instrumentação, 13560-970 São Carlos, SP, Brazil; Materials Engineering Department, São Carlos School of Engineering, University of São Paulo, 13563-120 São Carlos, SP, Brazil.
| |
Collapse
|
2
|
Cotrim M, Oréfice R. Tailoring polycaprolactone/silk electrospun nanofiber yarns by varying compositional and processing parameters. Polym Bull (Berl) 2023. [DOI: 10.1007/s00289-023-04735-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
|
3
|
Wang J, Chen G, Chen ZM, Wang FP, Xia B. Current strategies in biomaterial-based periosteum scaffolds to promote bone regeneration: A review. J Biomater Appl 2023; 37:1259-1270. [PMID: 36251764 DOI: 10.1177/08853282221135095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The role of periosteum rich in a variety of bone cells and growth factors in the treatment of bone defects has gradually been discovered. However, due to the limited number of healthy transplantable periosteum, there are still major challenges in the clinical treatment of critical-size bone defects. Various techniques for preparing biomimetic periosteal scaffolds that are similar in composition and structure to natural periosteal scaffold have gradually emerged. This article reviews the current preparation methods of biomimetic periosteal scaffolds based on various biomaterials, which are mainly divided into natural periosteal materials and various polymer biomaterials. Several preparation methods of biomimetic periosteal scaffolds with different principles are listed, their strengths and weaknesses are also discussed. It aims to provide a more systematic perspective for the preparation of biomimetic periosteal scaffolds in the future.
Collapse
Affiliation(s)
- Jinsong Wang
- School of Pharmacy and Bioengineering, 232838Chongqing University of Technology, Chongqing, China
| | - Guobao Chen
- School of Pharmacy and Bioengineering, 232838Chongqing University of Technology, Chongqing, China
| | - Zhong M Chen
- School of Pharmacy and Bioengineering, 232838Chongqing University of Technology, Chongqing, China
| | - Fu P Wang
- School of Pharmacy and Bioengineering, 232838Chongqing University of Technology, Chongqing, China
| | - Bin Xia
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, 66530Chongqing Technology and Business University, Chongqing, China
| |
Collapse
|
4
|
Gupta P, Mandal BB. Silk biomaterials for vascular tissue engineering applications. Acta Biomater 2021; 134:79-106. [PMID: 34384912 DOI: 10.1016/j.actbio.2021.08.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 02/07/2023]
Abstract
Vascular tissue engineering is a rapidly growing field of regenerative medicine, which strives to find innovative solutions for vascular reconstruction. Considering the limited success of synthetic grafts, research impetus in the field is now shifted towards finding biologically active vascular substitutes bestowing in situ growth potential. In this regard, silk biomaterials have shown remarkable potential owing to their favorable inherent biological and mechanical properties. This review provides a comprehensive overview of the progressive development of silk-based small diameter (<6 mm) tissue-engineered vascular grafts (TEVGs), emphasizing their pre-clinical implications. Herein, we first discuss the molecular structure of various mulberry and non-mulberry silkworm silk and identify their favorable properties at the onset of vascular regeneration. The emergence of various state-of-the-art fabrication methodologies for the advancement of silk TEVGs is rationally appraised in terms of their in vivo performance considering the following parameters: ease of handling, long-term patency, resistance to acute thrombosis, stenosis and aneurysm formation, immune reaction, neo-tissue formation, and overall remodeling. Finally, we provide an update on the pre-clinical status of silk-based TEVGs, followed by current challenges and future prospects. STATEMENT OF SIGNIFICANCE: Limited availability of healthy autologous blood vessels to replace their diseased counterpart is concerning and demands other artificial substitutes. Currently available synthetic grafts are not suitable for small diameter blood vessels owing to frequent blockage. Tissue-engineered biological grafts tend to integrate well with the native tissue via remodeling and have lately witnessed remarkable success. Silk fibroin is a natural biomaterial, which has long been used as medical sutures. This review aims to identify several favorable properties of silk enabling vascular regeneration. Furthermore, various methodologies to fabricate tubular grafts are discussed and highlight their performance in animal models. An overview of our understanding to rationally improve the biological activity fostering the clinical success of silk-based grafts is finally discussed.
Collapse
|
5
|
Rickel AP, Deng X, Engebretson D, Hong Z. Electrospun nanofiber scaffold for vascular tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112373. [PMID: 34579892 DOI: 10.1016/j.msec.2021.112373] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/28/2021] [Accepted: 08/10/2021] [Indexed: 12/16/2022]
Abstract
Due to the prevalence of cardiovascular diseases, there is a large need for small diameter vascular grafts that cannot be fulfilled using autologous vessels. Although medium to large diameter synthetic vessels are in use, no suitable small diameter vascular graft has been developed due to the unique dynamic environment that exists in small vessels. To achieve long term patency, a successful tissue engineered vascular graft would need to closely match the mechanical properties of native tissue, be non-thrombotic and non-immunogenic, and elicit the proper healing response and undergo remodeling to incorporate into the native vasculature. Electrospinning presents a promising approach to the development of a suitable tissue engineered vascular graft. This review provides a comprehensive overview of the different polymers, techniques, and functionalization approaches that have been used to develop an electrospun tissue engineered vascular graft.
Collapse
Affiliation(s)
- Alex P Rickel
- The Department of Biomedical Engineering, The University of South Dakota, Sioux Falls, SD 57107, United States of America
| | - Xiajun Deng
- The Department of Biomedical Engineering, The University of South Dakota, Sioux Falls, SD 57107, United States of America
| | - Daniel Engebretson
- The Department of Biomedical Engineering, The University of South Dakota, Sioux Falls, SD 57107, United States of America
| | - Zhongkui Hong
- The Department of Biomedical Engineering, The University of South Dakota, Sioux Falls, SD 57107, United States of America.
| |
Collapse
|
6
|
Zamani F, Amani Tehran M, Abbasi A. Fabrication of PCL nanofibrous scaffold with tuned porosity for neural cell culture. Prog Biomater 2021; 10:151-160. [PMID: 34213756 DOI: 10.1007/s40204-021-00159-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 05/24/2021] [Indexed: 11/25/2022] Open
Abstract
In tissue engineering, the structure of nanofibrous scaffolds and optimization of their properties play important role in the enhancement of cell growth and proliferation. Therefore, the basic idea of the current study is to find a proper method for tuning the extent of porosity of the scaffold, study the effect of porosity on the cell growth, and optimize the extent of porosity with the aim of achieving the maximum cell growth. To tune the scaffold's porosity, four types of metal mesh with different mesh sizes were employed as collectors. For this purpose, the structural properties of polycaprolactone nanofibrous layers which were electrospun on collectors, and the level of neural A-172 cell growth on layers were investigated, and the results were compared with the results attained for the fabricated nanofibrous layer on a flat aluminum collector. It was found that upon changing the porosity of the metal mesh as collector, the fibers' diameter would be inevitably changed, albeit insignificantly, and following no specific trends. However, changing the mesh size has shown a significant effect on the thickness and porosity of nanofibrous layer. According to the MTT assay results, the optimum neural cell growth was observed for the electrospun nanofibrous scaffold with the porosity of 96% and pore size of (0.42-23 µm) which has been fabricated on the type-4 collector having a mesh size of 10. The fabricated scaffold using this mesh with the optimum extent of porosity (58%) resulted in 44% enhancement in the cell growth as compared with the fabricated layer on the flat collector.
Collapse
Affiliation(s)
| | - Mohammad Amani Tehran
- Department of Textile Engineering, Amirkabir University of Technology, 15875-4413, Tehran, Iran
| | - Atiyeh Abbasi
- Department of Textile Engineering, Amirkabir University of Technology, 15875-4413, Tehran, Iran
| |
Collapse
|
7
|
Tang H, Yi B, Wang X, Shen Y, Zhang Y. Understanding the cellular responses based on low-density electrospun fiber networks. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 119:111470. [PMID: 33321594 DOI: 10.1016/j.msec.2020.111470] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 08/14/2020] [Accepted: 08/25/2020] [Indexed: 01/12/2023]
Abstract
Fibers produced from electrospinning are well-known to be extremely fine with diameters ranging from tens of nanometers to a few microns. Such ultrafine fibers not only allow for engineering scaffolds resembling the ultrastructure of the native extracellular matrix, but also offer possibility to explore the remodeling behavior of cells in vitro, due to their mechanically 'adequate' softness endowed by their ultrafine fineness. However, the remodeling effect of cells on the biomimicking fibrous substrates remains to be understood, because the crisscrossing and entangling among nanofibers in those tightly packed fibrous mats ultimately lead to merely a topological phenomenon, similar to that of the nanofiber-like topography embossed on the surface of a solid matter. In this study, the effect of nanofiber density on cellular response behavior was investigated by reducing the density of electrospun fiber networks. Using polycaprolactone (PCL) as a model polymer, randomly oriented fiber networks with various densities, namely, 37.7 ± 16.3 μg/cm2 (D1), 103.8 ± 16.3 μg/cm2 (D2), 198.2 ± 40.0 μg/cm2 (D3), and 471.8 ± 32.7 μg/cm2 (D4), were prepared by electrospinning for varied collection durations (10 s, 50 s, 100 s, and 10 min, respectively). By examining the responsive behavior of the human induced pluripotent stem cell-derived mesenchymal stem cells (hiPS-MSCs) cultured on these nanofibrous networks, we showed that the fiber network with a moderate density (D2) is beneficial to the cell attachment, spreading, actin polymerization, contractility and migration. There also showed an increased tendency in nuclear localization of the Yes-associated protein (YAP) and subsequent activation of YAP responsive gene transcription, and cell proliferation and collagen synthesis were also enhanced on the D2. However, further increasing the fiber density (D3, D4) gave rise to weakened induction effect of fibers on the cellular responses. These results enrich our understanding on the effect of fiber density on cell behavior, and disclose the dependence of cellular responses on fiber density. This study paves the way to precisely design biomimetic fibrous scaffolds for achieving enhanced cell-scaffold interactions and tissue regeneration.
Collapse
Affiliation(s)
- Han Tang
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
| | - Bingcheng Yi
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
| | - Xianliu Wang
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
| | - Yanbing Shen
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
| | - Yanzhong Zhang
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China; Key Lab of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, Shanghai 201620, China; Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China; China Orthopaedic Regenerative Medicine Group (CORMed), Hangzhou 310058, China.
| |
Collapse
|
8
|
Characterization of Bone Marrow and Wharton's Jelly Mesenchymal Stromal Cells Response on Multilayer Braided Silk and Silk/PLCL Scaffolds for Ligament Tissue Engineering. Polymers (Basel) 2020; 12:polym12092163. [PMID: 32971891 PMCID: PMC7569883 DOI: 10.3390/polym12092163] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/18/2020] [Accepted: 09/18/2020] [Indexed: 12/29/2022] Open
Abstract
(1) Background: A suitable scaffold with adapted mechanical and biological properties for ligament tissue engineering is still missing. (2) Methods: Different scaffold configurations were characterized in terms of morphology and a mechanical response, and their interactions with two types of stem cells (Wharton's jelly mesenchymal stromal cells (WJ-MSCs) and bone marrow mesenchymal stromal cells (BM-MSCs)) were assessed. The scaffold configurations consisted of multilayer braids with various number of silk layers (n = 1, 2, 3), and a novel composite scaffold made of a layer of copoly(lactic acid-co-(e-caprolactone)) (PLCL) embedded between two layers of silk. (3) Results: The insertion of a PLCL layer resulted in a higher porosity and better mechanical behavior compared with pure silk scaffold. The metabolic activities of both WJ-MSCs and BM-MSCs increased from day 1 to day 7 except for the three-layer silk scaffold (S3), probably due to its lower porosity. Collagen I (Col I), collagen III (Col III) and tenascin-c (TNC) were expressed by both MSCs on all scaffolds, and expression of Col I was higher than Col III and TNC. (4) Conclusions: the silk/PLCL composite scaffolds constituted the most suitable tested configuration to support MSCs migration, proliferation and tissue synthesis towards ligament tissue engineering.
Collapse
|
9
|
Performance of PEGylated chitosan and poly (L-lactic acid-co-ε-caprolactone) bilayer vascular grafts in a canine femoral artery model. Colloids Surf B Biointerfaces 2020; 188:110806. [PMID: 31978698 DOI: 10.1016/j.colsurfb.2020.110806] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 01/15/2020] [Accepted: 01/16/2020] [Indexed: 01/22/2023]
Abstract
The fabrication of a functional small-diameter vascular graft with good biocompatibility, in particular hemocompatibility, has become an urgent clinical necessity. We fabricated a native bilayer, small-diameter vascular graft using PEGylated chitosan (PEG-CS) and poly (L-lactic acid-co-ε-caprolactone; PLCL). To stabilize the inner layer, a PEG-CS blend with PLCL at ratio of 1:6 was casted on a round metal bar by a drip feed, and the outer layer, a PLCL blend with water-soluble PEG that acted as a sacrificial part to enhance pore size, was fabricated by electrospinning. The results showed excellent hemocompatibility and strong mechanical properties. In vitro, the degradation of the graft was evaluated by measuring the graft structure, mass loss rate, and changes in molecular weight. The results indicated that the graft had adequate support for the regeneration of blood vessels before collapse. An in vivo study was performed in a canine femoral artery model for up to 24 weeks, which demonstrated that the PEGylated bilayer grafts possessed excellent structural integrity, high compatibility with blood, good endothelial cell (EC) and smooth muscle cell (SMC) growth, and high expression levels of angiogenesis-related proteins, features that are highly similar to autologous blood vessels. Moreover, the results showed almost negligible calcification within 24 weeks. These findings confirm that the bilayer graft mimics native cells, thereby effectively improving vascular remodeling.
Collapse
|
10
|
Wang Y, He C, Feng Y, Yang Y, Wei Z, Zhao W, Zhao C. A chitosan modified asymmetric small-diameter vascular graft with anti-thrombotic and anti-bacterial functions for vascular tissue engineering. J Mater Chem B 2020; 8:568-577. [DOI: 10.1039/c9tb01755k] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Rapid endothelialization and prevention of restenosis are two vital challenges for the preparation of a small-diameter vascular graft (SDVG), while postoperative infection after implantation is often neglected.
Collapse
Affiliation(s)
- Yilin Wang
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Chao He
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Yunbo Feng
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Ye Yang
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Zhiwei Wei
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Weifeng Zhao
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Changsheng Zhao
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| |
Collapse
|
11
|
Yin A, Lan X, Zhuang W, Tang Z, Li Y, Wang Y. PEGylated chitosan and PEGylated PLCL for blood vessel repair: An in vitro study. J Biomater Appl 2019; 34:778-789. [DOI: 10.1177/0885328219875937] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Anlin Yin
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
- College of Materials and Textile Engineering, Jiaxing University, Jiaxing, China
| | - Xiaorong Lan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Weihua Zhuang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Zhonglan Tang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Yan Li
- College of Architecture and Environment, Sichuan University, Chengdu, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| |
Collapse
|
12
|
Ameer JM, Pr AK, Kasoju N. Strategies to Tune Electrospun Scaffold Porosity for Effective Cell Response in Tissue Engineering. J Funct Biomater 2019; 10:E30. [PMID: 31324062 PMCID: PMC6787600 DOI: 10.3390/jfb10030030] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/05/2019] [Accepted: 07/08/2019] [Indexed: 12/20/2022] Open
Abstract
Tissue engineering aims to develop artificial human tissues by culturing cells on a scaffold in the presence of biochemical cues. Properties of scaffold such as architecture and composition highly influence the overall cell response. Electrospinning has emerged as one of the most affordable, versatile, and successful approaches to develop nonwoven nano/microscale fibrous scaffolds whose structural features resemble that of the native extracellular matrix. However, dense packing of the fibers leads to small-sized pores which obstruct cell infiltration and therefore is a major limitation for their use in tissue engineering applications. To this end, a variety of approaches have been investigated to enhance the pore properties of the electrospun scaffolds. In this review, we collect state-of-the-art modification methods and summarize them into six classes as follows: approaches focused on optimization of packing density by (a) conventional setup, (b) sequential or co-electrospinning setups, (c) involving sacrificial elements, (d) using special collectors, (e) post-production processing, and (f) other specialized methods. Overall, this review covers historical as well as latest methodologies in the field and therefore acts as a quick reference for those interested in electrospinning matrices for tissue engineering and beyond.
Collapse
Affiliation(s)
- Jimna Mohamed Ameer
- Division of Tissue Culture, Department of Applied Biology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram 695012, Kerala, India
| | - Anil Kumar Pr
- Division of Tissue Culture, Department of Applied Biology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram 695012, Kerala, India
| | - Naresh Kasoju
- Division of Tissue Culture, Department of Applied Biology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram 695012, Kerala, India.
| |
Collapse
|
13
|
Patel KH, Dunn AJ, Talovic M, Haas GJ, Marcinczyk M, Elmashhady H, Kalaf EG, Sell SA, Garg K. Aligned nanofibers of decellularized muscle ECM support myogenic activity in primary satellite cells in vitro. ACTA ACUST UNITED AC 2019; 14:035010. [PMID: 30812025 DOI: 10.1088/1748-605x/ab0b06] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Volumetric muscle loss (VML) is a loss of over ∼10% of muscle mass that results in functional impairment. Although skeletal muscle possesses the ability to repair and regenerate itself following minor injuries, VML injuries are irrecoverable. Currently, there are no successful clinical therapies for the treatment of VML. Previous studies have treated VML defects with decellularized extracellular matrix (D-ECM) scaffolds derived from either pig urinary bladder or small intestinal submucosa. These therapies were unsuccessful due to the poor mechanical stability of D-ECM leading to quick degradation in vivo. To circumvent these issues, in this manuscript aligned nanofibers of D-ECM were created using electrospinning that mimicked native muscle architecture and provided topographical cues to primary satellite cells. Additionally, combining D-ECM with polycaprolactone (PCL) improved the tensile mechanical properties of the electrospun scaffold. In vitro testing shows that the electrospun scaffold with aligned nanofibers of PCL and D-ECM supports satellite cell growth, myogenic protein expression, and myokine production.
Collapse
|
14
|
Angioplasty Using 4-Hexylresorcinol-Incorporated Silk Vascular Patch in Rat Carotid Defect Model. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8122388] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The aim of this study was to evaluate and compare the efficacy of 4-hexylresorcinol (4-HR)-incorporated silk as a vascular patch scaffold to that of the commercial polytetrafluoroethylene (PTFE) vascular patch (GORE® ACUSEAL). The expression of the vascular endothelial cell growth factor-A (VEGF-A) after application of 4-HR was studied in RAW264.7 and HUVEC cells. In the animal study, a carotid artery defect was modeled in Sprague Dawley rats (n = 30). The defect was directly closed in the control group (n = 10), or repaired with the PTFE or 4-HR silk patch in the experimental groups (n = 10 per group). Following patch angioplasty, angiography was performed and the peak systolic velocity (PSV) was measured to evaluate the artery patency. The application of 4-HR was shown to increase the expression of VEGF-A in RAW264.7 and HUVEC cells. The successful artery patency rate was 80% for the 4-HR silk group, 30% for the PTFE group, and 60% for the control group. The PSV of the 4-HR silk group was significantly different from that of the control group at one week and three weeks post-angioplasty (p = 0.005 and 0.024). Histological examination revealed new regeneration of the arterial wall, and that the arterial diameter was well maintained in the 4-HR silk group in the absence of an immune reaction. In contrast, an overgrowth of endothelium was observed in the PTFE group. In this study, the 4-HR silk patch was successfully used as a vascular patch, and achieved a higher vessel patency rate and lower PSV than the PTFE patch.
Collapse
|
15
|
Feltz KP, Growney Kalaf EA, Chen C, Martin RS, Sell SA. A review of electrospinning manipulation techniques to direct fiber deposition and maximize pore size. ACTA ACUST UNITED AC 2017. [DOI: 10.1515/esp-2017-0002] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Abstract Electrospinning has been widely accepted for several decades by the tissue engineering and regenerative medicine community as a technique for nanofiber production. Owing to the inherent flexibility of the electrospinning process, a number of techniques can be easily implemented to control fiber deposition (i.e. electric/ magnetic field manipulation, use of alternating current, or air-based fiber focusing) and/or porosity (i.e. air impedance, sacrificial porogen/sacrificial fiber incorporation, cryo-electrospinning, or alternative techniques). The purpose of this review is to highlight some of the recent work using these techniques to create electrospun scaffolds appropriate for mimicking the structure of the native extracellular matrix, and to enhance the applicability of advanced electrospinning techniques in the field of tissue engineering.
Collapse
Affiliation(s)
- Kevin P. Feltz
- 1Department of Biomedical Engineering, Saint Louis University, United States of America
| | | | - Chengpeng Chen
- 2Department of Chemistry, Saint Louis University, United States of America
| | - R. Scott Martin
- 2Department of Chemistry, Saint Louis University, United States of America
| | - Scott A. Sell
- 3Department of Biomedical Engineering, Saint Louis University; United States of America
| |
Collapse
|
16
|
Aghajanpoor M, Hashemi-Najafabadi S, Baghaban-Eslaminejad M, Bagheri F, Mohammad Mousavi S, Azam Sayyahpour F. The effect of increasing the pore size of nanofibrous scaffolds on the osteogenic cell culture using a combination of sacrificial agent electrospinning and ultrasonication. J Biomed Mater Res A 2017; 105:1887-1899. [PMID: 28256792 DOI: 10.1002/jbm.a.36052] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 02/27/2017] [Accepted: 02/28/2017] [Indexed: 12/31/2022]
Abstract
One of the major problems associated with the electrospun scaffolds is their small pore size, which limits the cellular infiltration for bone tissue engineering. In this study, the effect of increasing the pore size on cellular infiltration was studied in poly/nanohydroxyapatite electrospun scaffolds, which were modified using ultrasonication, co-electrospinning with poly (ethylene oxide), and a combination of both. Ultrasonic process was optimized by central composite design. The ultrasonic output power and time of the process were considered as the effective parameters. The pore size of the scaffolds was evaluated by scanning electron microscope. The optimum conditions, according to the pore area and mechanical properties of the scaffolds were selected, and finally the groups that had the highest pore size and mechanical strength were selected for the combined method. Increasing the pore size enhanced the cellular proliferation, extension and infiltration, as well as the osteodifferentiation of stem cells. At the optimum condition, the average cellular infiltration was 36.51 µm compared to the control group with no cellular infiltration. In addition, alkaline phosphatase activity and the expression of osteocalcin and collagen I (COL I) were, respectively, 1.86, 2.54, and 2.16 fold compared to the control group on day 14. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 1887-1899, 2017.
Collapse
Affiliation(s)
- Mahdiyeh Aghajanpoor
- Department of Biomedical Engineering, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Sameereh Hashemi-Najafabadi
- Department of Biomedical Engineering, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Mohamadreza Baghaban-Eslaminejad
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Fatemeh Bagheri
- Department of Biotechnology, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Seyyed Mohammad Mousavi
- Department of Biotechnology, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Foruogh Azam Sayyahpour
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| |
Collapse
|
17
|
Yin A, Luo R, Li J, Mo X, Wang Y, Zhang X. Coaxial electrospinning multicomponent functional controlled-release vascular graft: Optimization of graft properties. Colloids Surf B Biointerfaces 2017; 152:432-439. [DOI: 10.1016/j.colsurfb.2017.01.045] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 01/20/2017] [Accepted: 01/24/2017] [Indexed: 11/29/2022]
|
18
|
Wu J, Hong Y. Enhancing cell infiltration of electrospun fibrous scaffolds in tissue regeneration. Bioact Mater 2016; 1:56-64. [PMID: 29744395 PMCID: PMC5883964 DOI: 10.1016/j.bioactmat.2016.07.001] [Citation(s) in RCA: 136] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 07/02/2016] [Accepted: 07/13/2016] [Indexed: 12/30/2022] Open
Abstract
Electrospinning is one of the most effective approaches to fabricate tissue-engineered scaffolds composed of nano-to sub-microscale fibers that simulate a native extracellular matrix. However, one major concern about electrospun scaffolds for tissue repair and regeneration is that their small pores defined by densely compacted fibers markedly hinder cell infiltration and tissue ingrowth. To address this problem, researchers have developed and investigated various methods of manipulating scaffold structures to increase pore size or loosen the scaffold. These methods involve the use of physical treatments, such as salt leaching, gas foaming and custom-made collectors, and combined techniques to obtain electrospun scaffolds with loose fibrous structures and large pores. This article provides a summary of these motivating electrospinning techniques to enhance cell infiltration of electrospun scaffolds, which may inspire new electrospinning techniques and their new biomedical applications. Electrospinning is a popular and attractive technique to produce fibrous scaffolds for tissue regeneration. One limitation for electrospun scaffolds is low cell infiltration. This article summarizes innovative techniques to improve cell infiltration of electrospun scaffolds.
Collapse
Affiliation(s)
- Jinglei Wu
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA.,Joint Graduate Program in Biomedical Engineering, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yi Hong
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA.,Joint Graduate Program in Biomedical Engineering, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| |
Collapse
|
19
|
Yin A, Bowlin GL, Luo R, Zhang X, Wang Y, Mo X. Electrospun silk fibroin/poly (L-lactide-ε-caplacton) graft with platelet-rich growth factor for inducing smooth muscle cell growth and infiltration. Regen Biomater 2016; 3:239-45. [PMID: 27482466 PMCID: PMC4966297 DOI: 10.1093/rb/rbw026] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 06/16/2016] [Accepted: 06/20/2016] [Indexed: 12/13/2022] Open
Abstract
The construction of a smooth muscle layer for blood vessel through electrospinning method plays a key role in vascular tissue engineering. However, smooth muscle cells (SMCs) penetration into the electrospun graft to form a smooth muscle layer is limited due to the dense packing of fibers and lack of inducing factors. In this paper, silk fibroin/poly (L-lactide-ε-caplacton) (SF/PLLA-CL) vascular graft loaded with platelet-rich growth factor (PRGF) was fabricated by electrospinning. The in vitro results showed that SMCs cultured in the graft grew fast, and the incorporation of PRGF could induce deeper SMCs infiltrating compared to the SF/PLLA-CL graft alone. Mechanical properties measurement showed that PRGF-incorporated graft had proper tensile stress, suture retention strength, burst pressure and compliance which could match the demand of native blood vessel. The success in the fabrication of PRGF-incorporated SF/PLLA-CL graft to induce fast SMCs growth and their strong penetration into graft has important application for tissue-engineered blood vessels.
Collapse
Affiliation(s)
- Anlin Yin
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Gary L Bowlin
- Department of Biomedical Engineering, University of Memphis, Memphis, TN 38152, USA
| | - Rifang Luo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Xiumei Mo
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| |
Collapse
|
20
|
Voorneveld J, Oosthuysen A, Franz T, Zilla P, Bezuidenhout D. Dual electrospinning with sacrificial fibers for engineered porosity and enhancement of tissue ingrowth. J Biomed Mater Res B Appl Biomater 2016; 105:1559-1572. [DOI: 10.1002/jbm.b.33695] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 03/24/2016] [Accepted: 04/06/2016] [Indexed: 01/19/2023]
Affiliation(s)
- Jason Voorneveld
- Cardiovascular Research Unit; Division of Cardiothoracic Surgery; MRC IUCHRU, University of Cape Town; Cape Town 7925 South Africa
| | - Anel Oosthuysen
- Cardiovascular Research Unit; Division of Cardiothoracic Surgery; MRC IUCHRU, University of Cape Town; Cape Town 7925 South Africa
| | - Thomas Franz
- Division of Biomedical Engineering; Department of Human Biology; University of Cape Town; Cape Town 7925 South Africa
| | - Peter Zilla
- Cardiovascular Research Unit; Division of Cardiothoracic Surgery; MRC IUCHRU, University of Cape Town; Cape Town 7925 South Africa
| | - Deon Bezuidenhout
- Cardiovascular Research Unit; Division of Cardiothoracic Surgery; MRC IUCHRU, University of Cape Town; Cape Town 7925 South Africa
| |
Collapse
|
21
|
Kim JI, Hwang TI, Aguilar LE, Park CH, Kim CS. A Controlled Design of Aligned and Random Nanofibers for 3D Bi-functionalized Nerve Conduits Fabricated via a Novel Electrospinning Set-up. Sci Rep 2016; 6:23761. [PMID: 27021221 PMCID: PMC4810461 DOI: 10.1038/srep23761] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 03/10/2016] [Indexed: 01/22/2023] Open
Abstract
Scaffolds made of aligned nanofibers are favorable for nerve regeneration due to their superior nerve cell attachment and proliferation. However, it is challenging not only to produce a neat mat or a conduit form with aligned nanofibers but also to use these for surgical applications as a nerve guide conduit due to their insufficient mechanical strength. Furthermore, no studies have been reported on the fabrication of aligned nanofibers and randomly-oriented nanofibers on the same mat. In this study, we have successfully produced a mat with both aligned and randomly-oriented nanofibers by using a novel electrospinning set up. A new conduit with a highly-aligned electrospun mat is produced with this modified electrospinning method, and this proposed conduit with favorable features, such as selective permeability, hydrophilicity and nerve growth directional steering, were fabricated as nerve guide conduits (NGCs). The inner surface of the nerve conduit is covered with highly aligned electrospun nanofibers and is able to enhance the proliferation of neural cells. The central part of the tube is double-coated with randomly-oriented nanofibers over the aligned nanofibers, strengthening the weak mechanical strength of the aligned nanofibers.
Collapse
Affiliation(s)
- Jeong In Kim
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University, Baekjaedae-ro, Dukjin-gu, Jeonju 561-756, Republic of Korea
| | - Tae In Hwang
- Department of Medical Practicing, Woori Convalescent Hospital, Andukwon-ro, Dukjin-gu, Jeonju 54914, Republic of Korea
| | - Ludwig Erik Aguilar
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University, Baekjaedae-ro, Dukjin-gu, Jeonju 561-756, Republic of Korea
| | - Chan Hee Park
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University, Baekjaedae-ro, Dukjin-gu, Jeonju 561-756, Republic of Korea.,Division of Mechanical Design Engineering, College of Engineering, Graduate School, Chonbuk National University, Baekjaedae-ro, Dukjin-gu, Jeonju 561-756, Republic of Korea
| | - Cheol Sang Kim
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University, Baekjaedae-ro, Dukjin-gu, Jeonju 561-756, Republic of Korea.,Division of Mechanical Design Engineering, College of Engineering, Graduate School, Chonbuk National University, Baekjaedae-ro, Dukjin-gu, Jeonju 561-756, Republic of Korea
| |
Collapse
|
22
|
Lin WH, Yu J, Chen G, Tsai WB. Fabrication of multi-biofunctional gelatin-based electrospun fibrous scaffolds for enhancement of osteogenesis of mesenchymal stem cells. Colloids Surf B Biointerfaces 2016; 138:26-31. [DOI: 10.1016/j.colsurfb.2015.11.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Revised: 10/12/2015] [Accepted: 11/09/2015] [Indexed: 01/14/2023]
|
23
|
Mi HY, Jing X, McNulty J, Salick MR, Peng XF, Turng LS. Approaches to Fabricating Multiple-Layered Vascular Scaffolds Using Hybrid Electrospinning and Thermally Induced Phase Separation Methods. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.5b03462] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hao-Yang Mi
- The
Key Laboratory for Polymer Processing Engineering of Ministry of Education, South China University of Technology, Guangzhou, China
| | - Xin Jing
- The
Key Laboratory for Polymer Processing Engineering of Ministry of Education, South China University of Technology, Guangzhou, China
| | | | | | - Xiang-Fang Peng
- The
Key Laboratory for Polymer Processing Engineering of Ministry of Education, South China University of Technology, Guangzhou, China
| | | |
Collapse
|
24
|
Singh BK, Dutta PK. Chitin, Chitosan, and Silk Fibroin Electrospun Nanofibrous Scaffolds: A Prospective Approach for Regenerative Medicine. SPRINGER SERIES ON POLYMER AND COMPOSITE MATERIALS 2016. [DOI: 10.1007/978-81-322-2511-9_7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
25
|
Zhang H, Fu QW, Sun TW, Chen F, Qi C, Wu J, Cai ZY, Qian QR, Zhu YJ. Amorphous calcium phosphate, hydroxyapatite and poly(d,l-lactic acid) composite nanofibers: Electrospinning preparation, mineralization and in vivo bone defect repair. Colloids Surf B Biointerfaces 2015; 136:27-36. [PMID: 26350803 DOI: 10.1016/j.colsurfb.2015.08.015] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Revised: 07/20/2015] [Accepted: 08/17/2015] [Indexed: 12/23/2022]
Abstract
Due to the outstanding bioactivity and biocompatibility, calcium phosphate (CaP) based materials have been widely investigated for applications in the biomedical fields. In this study, amorphous calcium phosphate (ACP) nanospheres and hydroxyapatite (HA) nanorods have been prepared and hybridized with poly(d,l-lactic acid) (PLA) to fabricate the composite nanofibers through electrospinning. The as-prepared ACP-PLA and HA-PLA composite nanofibers exhibit favorable mineralization behaviors in simulated body fluid (SBF). In the mineralization process, the ACP nanospheres and HA nanorods play an important role in the formation of HA nanosheets on the surface of composite nanofibers. The ACP-PLA and HA-PLA composite nanofibers show a high biocompatibility. The in vivo bone defect repair properties of the ACP-PLA and HA-PLA composite nanofibers are preliminarily investigated. The as-prepared ACP-PLA and HA-PLA composite nanofibers have promising applications in the biomedical fields.
Collapse
Affiliation(s)
- Hao Zhang
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai 200003, PR China
| | - Qi-Wei Fu
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai 200003, PR China
| | - Tuan-Wei Sun
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China
| | - Feng Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China.
| | - Chao Qi
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China
| | - Jin Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China
| | - Zhu-Yun Cai
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai 200003, PR China
| | - Qi-Rong Qian
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai 200003, PR China.
| | - Ying-Jie Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China.
| |
Collapse
|
26
|
Wang D, Liu H, Fan Y. Silk fibroin for vascular regeneration. Microsc Res Tech 2015; 80:280-290. [PMID: 26097014 DOI: 10.1002/jemt.22532] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 05/18/2015] [Accepted: 05/22/2015] [Indexed: 11/11/2022]
Abstract
Cardiovascular disease is the primary cause of morbidity and mortality in today's world. Due to the lack of healthy autologous vessels, more tissue-engineered blood vessels are needed to repair or replace the damaged arteries. Biomaterials play an indispensable role in creating a living neovessel with biological responses. Silk fibroin produced by silkworms possesses good cytocompatibility, tailorable biodegradability, suitable mechanical properties, and minimal inflammatory reactions. In addition, regenerated silk fibroin solutions can be processed into various forms of scaffolds such as films, fibers, tubes, and porous sponges. These features make silk fibroin a promising biomaterial for small-diameter vascular grafts. The present article focuses on the applications of silk fibroin for vascular regeneration. A brief overview of the properties of silk fibroin is provided, following which the current research status and future directions of the main types of silk fibroin scaffolds for vascular regeneration are reviewed and discussed. Microsc. Res. Tech. 80:280-290, 2017. © 2015 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Danyan Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, People's Republic of China
| | - Haifeng Liu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, People's Republic of China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, People's Republic of China.,National Research Center for Rehabilitation Technical Aids, Beijing, 100176, People's Republic of China
| |
Collapse
|
27
|
Chen J, Yan C, Zhu M, Yao Q, Shao C, Lu W, Wang J, Mo X, Gu P, Fu Y, Fan X. Electrospun nanofibrous SF/P(LLA-CL) membrane: a potential substratum for endothelial keratoplasty. Int J Nanomedicine 2015; 10:3337-50. [PMID: 26005345 PMCID: PMC4427599 DOI: 10.2147/ijn.s77706] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background Cornea transplant technology has progressed markedly in recent decades, allowing surgeons to replace diseased corneal endothelium by a thin lamellar structure. A thin, transparent, biocompatible, tissue-engineered substratum with corneal endothelial cells for endothelial keratoplasty is currently of interest. Electrospinning a nanofibrous structure can simulate the extracellular matrix and have beneficial effects for cell culture. Silk fibroin (SF) has good biocompatibility but poor mechanical properties, while poly(l-lactic acid-co-ε-caprolactone) (P(LLA-CL)) has good mechanical properties but poor biocompatibility. Blending SF with P(LLA-CL) can maintain the advantages of both these materials and overcome their disadvantages. Blended electrospun nanofibrous membranes may be suitable for regeneration of the corneal endothelium. The aim of this study was to produce a tissue-engineered construct suitable for endothelial keratoplasty. Methods Five scaffolds containing different SF:P(LLA-CL) blended ratios (100:0, 75:25, 50:50, 25:75, 0:100) were manufactured. A human corneal endothelial (B4G12) cell line was cultured on the membranes. Light transmission, speed of cell adherence, cell viability (live-dead test), cell proliferation (Ki-67, BrdU staining), and cell monolayer formation were detected on membranes with the different blended ratios, and expression of some functional genes was also detected by real-time polymerase chain reaction. Results Different blended ratios of scaffolds had different light transmittance properties. The 25:75 blended ratio membrane had the best transmittance among these scaffolds. All electrospun nanofibrous membranes showed improved speed of cell adherence when compared with the control group, especially when the P(LLA-CL) ratio increased. The 25:75 blended ratio membranes also had the highest cell proliferation. B4G12 cells could form a monolayer on all scaffolds, and most functional genes were also stably expressed on all scaffolds. Only two genes showed changes in expression. Conclusion All blended ratios of SF:P(LLA-CL) scaffolds were evaluated and showed good biocompatibility for cell adherence and monolayer formation. Among them, the 25:75 blended ratio SF:P(LLA-CL) scaffold had the best transmittance and the highest cell proliferation. These attributes further the potential application of the SF:P(LLA-CL) scaffold for corneal endothelial transplantation.
Collapse
Affiliation(s)
- Junzhao Chen
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Chenxi Yan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Mengyu Zhu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Qinke Yao
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Chunyi Shao
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Wenjuan Lu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Jing Wang
- Biomaterials and Tissue Engineering Laboratory, College of Chemistry and Chemical Engineering and Biotechnology, Donghua University, Shanghai, People's Republic of China
| | - Xiumei Mo
- Biomaterials and Tissue Engineering Laboratory, College of Chemistry and Chemical Engineering and Biotechnology, Donghua University, Shanghai, People's Republic of China
| | - Ping Gu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Yao Fu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Xianqun Fan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| |
Collapse
|
28
|
Liu B, Song YW, Jin L, Wang ZJ, Pu DY, Lin SQ, Zhou C, You HJ, Ma Y, Li JM, Yang L, Sung KLP, Zhang YG. Silk structure and degradation. Colloids Surf B Biointerfaces 2015; 131:122-8. [PMID: 25982316 DOI: 10.1016/j.colsurfb.2015.04.040] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 04/13/2015] [Accepted: 04/16/2015] [Indexed: 10/23/2022]
Abstract
To investigate the structure of silk and its degradation properties, we have monitored the structure of silk using scanning electron microscopy and frozen sections. Raw silk and degummed raw silk were immersed in four types of degradation solutions for 156 d to observe their degradation properties. The subcutaneous implants in rats were removed after 7, 14, 56, 84, 129, and 145 d for frozen sectioning and subsequent staining with hematoxylin and eosin (H.E.), DAPI, Beta-actin and Collagen I immunofluorescence staining. The in vitro weight loss ratio of raw silk and degummed raw silk in water, PBS, DMEM and DMEM containing 10% FBS (F-DMEM) were, respectively, 14%/11%, 12.5%/12.9%, 11.1%/14.3%, 8.8%/11.6%. Silk began to degrade after 7 d subcutaneous implantation and after 145 d non-degraded silk was still observed. These findings suggest the immunogenicity of fibroin and sericin had no essential difference. In the process of in vitro degradation of silk, the role of the enzyme is not significant. The in vivo degradation of silk is related to phagocytotic activity and fibroblasts may be involved in this process to secrete collagen. This study also shows the developing process of cocoons and raw silk.
Collapse
Affiliation(s)
- Bin Liu
- Key Laboratory of Freshwater Fish Reproduction and Development (Southwest University), Ministry of Education, Chongqing 400715, China; School of Life Science, Southwest University, Chongqing 400715, China
| | - Yu-wei Song
- Key Laboratory of Freshwater Fish Reproduction and Development (Southwest University), Ministry of Education, Chongqing 400715, China; School of Life Science, Southwest University, Chongqing 400715, China
| | - Li Jin
- Key Laboratory of Freshwater Fish Reproduction and Development (Southwest University), Ministry of Education, Chongqing 400715, China; School of Life Science, Southwest University, Chongqing 400715, China
| | - Zhi-jian Wang
- Key Laboratory of Freshwater Fish Reproduction and Development (Southwest University), Ministry of Education, Chongqing 400715, China; School of Life Science, Southwest University, Chongqing 400715, China
| | - De-yong Pu
- Key Laboratory of Freshwater Fish Reproduction and Development (Southwest University), Ministry of Education, Chongqing 400715, China; School of Life Science, Southwest University, Chongqing 400715, China
| | - Shao-qiang Lin
- Core Laboratory of the First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Chan Zhou
- Chongqing Academy of Animal Science, Chongqing 400015, China
| | - Hua-jian You
- Key Laboratory of Freshwater Fish Reproduction and Development (Southwest University), Ministry of Education, Chongqing 400715, China; School of Life Science, Southwest University, Chongqing 400715, China
| | - Yan Ma
- Key Laboratory of Freshwater Fish Reproduction and Development (Southwest University), Ministry of Education, Chongqing 400715, China; School of Life Science, Southwest University, Chongqing 400715, China
| | - Jin-min Li
- Department of Obstetrics, the Ninth People's Hospital of Chongqing, 400700, China
| | - Li Yang
- College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - K L Paul Sung
- College of Bioengineering, Chongqing University, Chongqing 400044, China; Department of Orthopaedics, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0412, USA; Department of Bioengineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0412, USA
| | - Yao-guang Zhang
- Key Laboratory of Freshwater Fish Reproduction and Development (Southwest University), Ministry of Education, Chongqing 400715, China; School of Life Science, Southwest University, Chongqing 400715, China.
| |
Collapse
|