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Weng L, Xie J. Smart electrospun nanofibers for controlled drug release: recent advances and new perspectives. Curr Pharm Des 2015; 21:1944-59. [PMID: 25732665 PMCID: PMC5492677 DOI: 10.2174/1381612821666150302151959] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 02/25/2015] [Indexed: 11/22/2022]
Abstract
In biological systems, chemical molecules or ions often release upon certain conditions, at a specific location, and over a desired period of time. Electrospun nanofibers that undergo alterations in the physicochemical characteristics corresponding to environmental changes have gained considerable interest for various applications. Inspired by biological systems, therapeutic molecules have been integrated with these smart electrospun nanofibers, presenting activation-modulated or feedback-regulated control of drug release. Compared to other materials like smart hydrogels, environment-responsive nanofiber-based drug delivery systems are relatively new but possess incomparable advantages due to their greater permeability, which allows shorter response time and more precise control over the release rate. In this article, we review the mechanisms of various environmental parameters functioning as stimuli to tailor the release rates of smart electrospun nanofibers. We also illustrate several typical examples in specific applications. We conclude this article with a discussion on perspectives and future possibilities in this field.
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Affiliation(s)
| | - Jingwei Xie
- Department of Pharmaceutical Sciences and Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States.
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102
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Makhdom AM, Nayef L, Tabrizian M, Hamdy RC. The potential roles of nanobiomaterials in distraction osteogenesis. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 11:1-18. [DOI: 10.1016/j.nano.2014.05.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Revised: 04/25/2014] [Accepted: 05/16/2014] [Indexed: 10/25/2022]
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103
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Lee C, Horiike M, Masutani K, Kimura Y. Characteristic cell adhesion behaviors on various derivatives of poly(3-hydroxybutyrate) (PHB) and a block copolymer of poly(3-[RS]-hydroxybutyrate) and poly(oxyethylene). Polym Degrad Stab 2015. [DOI: 10.1016/j.polymdegradstab.2014.11.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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104
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Wang S, Zhong S, Lim CT, Nie H. Effects of fiber alignment on stem cells–fibrous scaffold interactions. J Mater Chem B 2015; 3:3358-3366. [DOI: 10.1039/c5tb00026b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fiber alignment-induced enhancement of cell adhesion and scaffold remodelling, and alignment of secreted ECM in differentiation.
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Affiliation(s)
- Shuo Wang
- Department of Biomedical Engineering
- College of Biology
- Hunan University
- Changsha 410082
- China
| | - Shaoping Zhong
- Department of Biomedical Engineering
- Faculty of Engineering
- National University of Singapore
- Singapore 117575
| | - Chwee Teck Lim
- Department of Biomedical Engineering
- Faculty of Engineering
- National University of Singapore
- Singapore 117575
| | - Hemin Nie
- Department of Biomedical Engineering
- College of Biology
- Hunan University
- Changsha 410082
- China
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105
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Electrospinning of Bioinspired Polymer Scaffolds. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 881:33-53. [DOI: 10.1007/978-3-319-22345-2_3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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106
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Jia C, Yu D, Lamarre M, Leopold PL, Teng YD, Wang H. Patterned electrospun nanofiber matrices via localized dissolution: potential for guided tissue formation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:8192-7. [PMID: 25352221 DOI: 10.1002/adma.201403509] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 09/16/2014] [Indexed: 05/13/2023]
Abstract
With the assistance of an ink-jet printer, solvent (the "ink") can be controllably and reproducibly printed onto electrospun nanofiber meshes (the "paper") to generate various micropatterns and subsequently guide distinct cellular organization and phenotype expression. In combination with the nanofiber-assisted layer-by-layer cell assembly, the patterned electrospun meshes will define an instructive microenvironment for guided tissue formation.
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Affiliation(s)
- Chao Jia
- Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, 1 Castle Point on Hudson, Hoboken, NJ, 07030, USA
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107
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Paper-based bioactive scaffolds for stem cell-mediated bone tissue engineering. Biomaterials 2014; 35:9811-9823. [PMID: 25241158 DOI: 10.1016/j.biomaterials.2014.09.002] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 09/01/2014] [Indexed: 12/14/2022]
Abstract
Bioactive, functional scaffolds are required to improve the regenerative potential of stem cells for tissue reconstruction and functional recovery of damaged tissues. Here, we report a paper-based bioactive scaffold platform for stem cell culture and transplantation for bone reconstruction. The paper scaffolds are surface-engineered by an initiated chemical vapor deposition process for serial coating of a water-repellent and cell-adhesive polymer film, which ensures the long-term stability in cell culture medium and induces efficient cell attachment. The prepared paper scaffolds are compatible with general stem cell culture and manipulation techniques. An optimal paper type is found to provide structural, physical, and mechanical cues to enhance the osteogenic differentiation of human adipose-derived stem cells (hADSCs). A bioactive paper scaffold significantly enhances in vivo bone regeneration of hADSCs in a critical-sized calvarial bone defect. Stacking the paper scaffolds with osteogenically differentiated hADSCs and human endothelial cells resulted in vascularized bone formation in vivo. Our study suggests that paper possesses great potential as a bioactive, functional, and cost-effective scaffold platform for stem cell-mediated bone tissue engineering. To the best of our knowledge, this is the first study reporting the feasibility of a paper material for stem cell application to repair tissue defects.
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108
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Tanir TE, Hasirci V, Hasirci N. Electrospinning of chitosan/poly(lactic acid-co-glycolic acid)/hydroxyapatite composite nanofibrous mats for tissue engineering applications. Polym Bull (Berl) 2014. [DOI: 10.1007/s00289-014-1234-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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109
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Zhang CY, Zhang W, Mao LB, Zhao Y, Yu SH. Biomimetic mineralization of zein/calcium phosphate nanocomposite nanofibrous mats for bone tissue scaffolds. CrystEngComm 2014. [DOI: 10.1039/c4ce01287a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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110
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Fu N, Deng S, Fu Y, Li G, Cun X, Hao L, Wei X, Cai X, Peng Q, Lin Y. Electrospun P34HB fibres: a scaffold for tissue engineering. Cell Prolif 2014; 47:465-75. [PMID: 25124858 DOI: 10.1111/cpr.12122] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Accepted: 06/14/2014] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVES Amongst the fourth generation of PHAs is bio-plasticpoly3-hydroxybutyrate4-hydroxybutyrate (P34HB); it is thus appropriate to perform novel research on its uses and applications. The main objective of this study was to determine whether electrospun P34HB fibres would accommodate viability, growth and differentiation of mouse adipose-derived stem cells (mASCs). MATERIALS AND METHODS In the present study, we looked at P34HB in two forms, electrospun P34HB fibres and P34HB film. Morphology of electrospun P34HB fibres and P34HB film were characterized using scanning electron microscopy, fluorescence microscopy and confocal laser scanning microscopy, after cell seeding. Cell adhesion, proliferation and cytotoxicity tests were conducted on both by MTT and CCK-8 assays, respectively. After being cultured with osteogenic induction, expression of adipogenic genes Runx2, OPN and OCN, were examined by real-time PCR. RESULTS By scanning electron microscopy, light microscopy and confocal laser scanning microscopy, we observed that the mASCs grew well associated with the P34HB materials. After MTT and CCK-8 assay, we concluded that P34HB would, indeed, be a material suitable for further cell adhesion and proliferation studies. More importantly, we found that the P34HB matrices promoted expression of Runx2, OPN and OCN with osteogenic induction. CONCLUSIONS In this investigation, we can confirm that the electrospun P34HB fibres accommodated survival, proliferation and differentiation of mASCs, and we have been able to draw the conclusion that fibre scaffolds produced by the electrospinning process are promising for application of bone tissue engineering.
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Affiliation(s)
- N Fu
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
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111
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Duan S, Yang X, Mei F, Tang Y, Li X, Shi Y, Mao J, Zhang H, Cai Q. Enhanced osteogenic differentiation of mesenchymal stem cells on poly(l-lactide) nanofibrous scaffolds containing carbon nanomaterials. J Biomed Mater Res A 2014; 103:1424-35. [DOI: 10.1002/jbm.a.35283] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 06/23/2014] [Accepted: 07/18/2014] [Indexed: 12/14/2022]
Affiliation(s)
- Shun Duan
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
- Beijing Laboratory of Biomedical Materials; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Fang Mei
- School of Basic Medical Sciences; Peking University; Beijing 100191 People's Republic of China
| | - Yan Tang
- School of Basic Medical Sciences; Peking University; Beijing 100191 People's Republic of China
| | - Xiaoli Li
- Key Laboratory of Biomedical Materials and Implants; Research Institute of Tsinghua University in Shenzhen; Shenzhen 518057 People's Republic of China
| | - Yuzhou Shi
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Jifu Mao
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Hongquan Zhang
- School of Basic Medical Sciences; Peking University; Beijing 100191 People's Republic of China
| | - Qing Cai
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
- Beijing Laboratory of Biomedical Materials; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
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112
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Shahverdi S, Hajimiri M, Esfandiari MA, Larijani B, Atyabi F, Rajabiani A, Dehpour AR, Gharehaghaji AA, Dinarvand R. Fabrication and structure analysis of poly(lactide-co-glycolic acid)/silk fibroin hybrid scaffold for wound dressing applications. Int J Pharm 2014; 473:345-55. [PMID: 25051110 DOI: 10.1016/j.ijpharm.2014.07.021] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 07/16/2014] [Accepted: 07/16/2014] [Indexed: 11/27/2022]
Abstract
Silk fibroin (SF) and poly(lactide-co-glycolic acid) (PLGA) have been proved to be invaluable polymers in the field wound healing. This study aims at optimizing the electrospinning process of those polymers to make a hybrid membrane as a chronic wounds dressing. After characterizing the scaffolds, PLGA/SF (2:1), and PLGA scaffolds were selected for further study according to their superior tensile mechanical properties. The attachment and proliferation of mouse fibroblasts (L929) on scaffolds were measured using colorimetric assay and scanning electron microscopy. Furthermore, to evaluate the wound healing effect of the scaffolds in comparison with gauze and Comfeel(®) dressings, an excision wound model was conducted on diabetic rats. On the postoperative days of 3, 6, 9, 12, and 15, residual wound area was calculated using macroscopic data. In vitro results showed that the attachment and proliferation of L929 were significantly increased on PLGA/SF (2:1) hybrid scaffold. Animal study and histopathological evaluation outcomes confirmed the in vitro results as well. On day 15, the residual wound area in PLGA/SF (2:1) hybrid membrane group was significantly smaller than PLGA and control groups. This promising scaffold has the potential to be used for the upcoming development of wound dressings with or without biological drugs.
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Affiliation(s)
- Sheida Shahverdi
- Nanomedicine and Biomaterial Lab, Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mirhamed Hajimiri
- Nanomedicine and Biomaterial Lab, Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; Nano Alvand Co., Avicenna Tech Park, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Esfandiari
- Nanomedicine and Biomaterial Lab, Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center (EMRC), Tehran University Medical Sciences, Tehran, Iran
| | - Fatemeh Atyabi
- Nanomedicine and Biomaterial Lab, Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Afsaneh Rajabiani
- Department of Pathology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Reza Dehpour
- Department of Pharmacology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Rassoul Dinarvand
- Nanomedicine and Biomaterial Lab, Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
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113
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Hofmann MC. Stem cells and nanomaterials. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 811:255-75. [PMID: 24683036 DOI: 10.1007/978-94-017-8739-0_13] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Because of their ability to self-renew and differentiate into many cell types, stem cells offer the potential to be used for tissue regeneration and engineering. Much progress has recently been made in our understanding of the biology of stem cells and our ability to manipulate their proliferation and differentiation to obtain functional tissues. Similarly, nanomaterials have been recently developed that will accelerate discovery of mechanisms driving stem cell fate and their utilization in medicine. Nanoparticles have been developed that allow the labeling and tracking of stem cells and their differentiated phenotype within an organism. Nanosurfaces are engineered that mimic the extracellular matrix to which stem cells adhere and migrate. Scaffolds made of functionalized nanofibers can now be used to grow stem cells and regenerate damaged tissues and organs. However, the small scale of nanomaterials induces changes in their chemical and physical properties that might modify their interactions with cells and tissues, and render them toxic to stem cells. Therefore a thorough understanding of stem cell-nanomaterial interactions is still necessary not only to accelerate the success of medical treatments but also to ensure the safety of the tools provided by these novel technologies.
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Affiliation(s)
- Marie-Claude Hofmann
- Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, Houston, TX, USA,
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114
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Ko E, Cho SW. Biomimetic polymer scaffolds to promote stem cell-mediated osteogenesis. Int J Stem Cells 2014; 6:87-91. [PMID: 24386552 DOI: 10.15283/ijsc.2013.6.2.87] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/29/2013] [Indexed: 01/12/2023] Open
Abstract
Bone tissue engineering using stem cells with osteogenic potential is a promising avenue of research for bone defect reconstruction. Organic, inorganic, and composite scaffolds have all been engineered to provide biomimetic microenvironments for stem cells. These scaffolds are designed to promote stem cell osteogenesis. Here, we review current technologies for developing biomimetic, osteoinductive scaffolds for stem cell applications. We summarize the reported in vitro and in vivo osteogenic effects of these scaffolds on stem cells.
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Affiliation(s)
- Eunkyung Ko
- Department of Biotechnology, Yonsei University, Seoul, Korea
| | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University, Seoul, Korea
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115
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Guo P, Yuan Y, Chi F. Biomimetic alginate/polyacrylamide porous scaffold supports human mesenchymal stem cell proliferation and chondrogenesis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 42:622-8. [PMID: 25063162 DOI: 10.1016/j.msec.2014.06.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Revised: 04/21/2014] [Accepted: 06/09/2014] [Indexed: 10/25/2022]
Abstract
We describe the development of alginate/polyacrylamide (ALG/PAAm) porous hydrogels based on interpenetrating polymer network structure for human mesenchymal stem cell proliferation and chondrogenesis. Three ALG/PAAm hydrogels at molar ratios of 10/90, 20/80, and 30/70 were prepared and characterized with enhanced elastic and rubbery mechanical properties, which are similar to native human cartilage tissues. Their elasticity and swelling properties were also studied under different physiological pH conditions. Finally, in vitro tests demonstrated that human mesenchymal stem cells could proliferate on the as-synthesized hydrogels with improved alkaline phosphatase activities. These results suggest that ALG/PAAm hydrogels may be a promising biomaterial for cartilage tissue engineering.
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Affiliation(s)
- Peng Guo
- Department of ENT-Head and Neck Surgery, EENT Hospital, Shanghai 200031, China; Shanghai Medical School, Fudan University, 210029, China
| | - Yasheng Yuan
- Department of ENT-Head and Neck Surgery, EENT Hospital, Shanghai 200031, China; Shanghai Medical School, Fudan University, 210029, China; Eaton-Peabody Laboratory, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA 02114, United States.
| | - Fanglu Chi
- Department of ENT-Head and Neck Surgery, EENT Hospital, Shanghai 200031, China; Shanghai Medical School, Fudan University, 210029, China
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116
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Abstract
Ocular surface defects represent one of the most common causes of impaired vision or even blindness. For treatment, keratoplasty represents the first choice. However, if corneal defects are more extensive and associated with a limbal stem cell (LSC) deficiency, corneal transplantation is not a sufficient therapeutic procedure and only viable approach to treatment is the transplantation of LSCs. When the LSC deficiency is a bilateral disorder, autologous LSCs are not available. The use of allogeneic LSCs requires strong immunosuppression, which leads to side-effects, and the treatment is not always effective. The alternative and perspective approach to the treatment of severe ocular surface injuries and LSC deficiency is offered by the transplantation of autologous mesenchymal stem cells (MSCs). These cells can be obtained from the bone marrow or adipose tissue of the particular patient, grow well in vitro and can be transferred, using an appropriate scaffold, onto the damaged ocular surface. Here they exert beneficial effects by possible direct differentiation into corneal epithelial cells, by immunomodulatory effects and by the production of numerous trophic and growth factors. Recent experiments utilizing the therapeutic properties of MSCs in animal models with a mechanically or chemically injured ocular surface have yielded promising results and demonstrated significant corneal regeneration, improved corneal transparency and a rapid healing process associated with the restoration of vision. The use of autologous MSCs thus represents a promising therapeutic approach and offers hope for patients with severe ocular surface injuries and LSC deficiency.
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117
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Liao S, Nguyen LTH, Ngiam M, Wang C, Cheng Z, Chan CK, Ramakrishna S. Biomimetic nanocomposites to control osteogenic differentiation of human mesenchymal stem cells. Adv Healthc Mater 2014; 3:737-51. [PMID: 24574245 DOI: 10.1002/adhm.201300207] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 08/05/2013] [Indexed: 12/31/2022]
Abstract
The design of biomimetic nanomaterials that can directly influence the behavior of cells and facilitate the regeneration of tissues and organs has become an active area of research. Here, the production of materials based on nano-hydroxyapatite composites in scaffolds with nanofibrous and nanoporous topographies, designed to mimic the native bone matrix for applications in bone tissue engineering, is reported. Human mesenchymal stem cells grown on these nanocomposites are stimulated to rapidly produce bone minerals in situ, even in the absence of osteogenic supplements in the cell-culture medium. Nanocomposites comprising type I collagen and nano-hydroxyapatite are found to be especially efficient at inducing mineralization. When subcutaneously implanted into nude mice, this biomimetic nanocomposite is able to form a new bone matrix within only two weeks. Furthermore, when the nanocomposite is enriched with human mesenchymal stem cells before implantation, development of the bone matrix is accelerated to within one week. To the best of the authors' knowledge, this study provides the first clear in vitro and in vivo demonstration of osteoinduction controlled by the material characteristics of a biomimetic nanocomposite. This approach can potentially facilitate the translation of de novo bone-formation technologies to the clinic.
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Affiliation(s)
- Susan Liao
- School of Materials Science and Engineering Nanyang Technological University Singapore 639798
| | - Luong T. H. Nguyen
- Department of Mechanical Engineering National University of Singapore Singapore 117575
| | - Michelle Ngiam
- NUS Graduate School for Integrative Sciences and Engineering National University of Singapore Singapore 117456
| | - Charlene Wang
- Nanoscience and Nanotechnology Institute National University of Singapore Singapore 117581
| | - Ziyuan Cheng
- Department of Biomedical Engineering National University of Singapore Singapore 117576
| | - Casey K. Chan
- Department of Orthopaedic Surgery National University Healthcare System Singapore 119288
| | - Seeram Ramakrishna
- Department of Mechanical Engineering National University of Singapore Singapore 117575
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118
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Rogers CM, Morris GE, Gould TWA, Bail R, Toumpaniari S, Harrington H, Dixon JE, Shakesheff KM, Segal J, Rose FRAJ. A novel technique for the production of electrospun scaffolds with tailored three-dimensional micro-patterns employing additive manufacturing. Biofabrication 2014; 6:035003. [DOI: 10.1088/1758-5082/6/3/035003] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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119
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Park SH, Koh UH, Kim M, Yang DY, Suh KY, Shin JH. Hierarchical multilayer assembly of an ordered nanofibrous scaffold via thermal fusion bonding. Biofabrication 2014; 6:024107. [PMID: 24695440 DOI: 10.1088/1758-5082/6/2/024107] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A major challenge in muscle tissue engineering is mimicking the ordered nanostructure of native collagen fibrils in muscles. Electrospun nanofiber constructs have been proposed as promising candidate alternatives to natural extracellular matrix. Here, we introduce a novel method to fabricate a two-dimension (2D) sheet-type and three-dimensionally integrated nanofibrous scaffolds by combining electrospinning and rapid prototyping. The aligned 2D nanofiber mats can be processed into different configurations by the CAD/CAM-based deposition of thermally extruded microstructures. We demonstrate the feasibility of these microstructures for application in muscle tissue engineering by culturing C2C12 myoblasts and then evaluating their viability and alignment. Highly aligned cellular morphologies were successfully achieved along the direction of the nanofibers in all types of scaffolds. The hybrid scaffolds provided mechanical support and served as a topographical guide at the nanoscale, exhibiting their potential to meet the requirements for practical use in tissue engineering applications.
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Affiliation(s)
- Suk-Hee Park
- Micro Manufacturing System Technology Center, Korea Institute of Industrial Technology, Ansan-si, Gyeonggi-do, 426-910, Korea
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120
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Ma B, Xie J, Jiang J, Shuler FD, Bartlett DE. Rational design of nanofiber scaffolds for orthopedic tissue repair and regeneration. Nanomedicine (Lond) 2014; 8:1459-81. [PMID: 23987110 DOI: 10.2217/nnm.13.132] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
This article reviews recent significant advances in the design of nanofiber scaffolds for orthopedic tissue repair and regeneration. It begins with a brief introduction on the limitations of current approaches for orthopedic tissue repair and regeneration. It then illustrates that rationally designed scaffolds made up of electrospun nanofibers could be a promising solution to overcome the problems that current approaches encounter. The article also discusses the intriguing properties of electrospun nanofibers, including control of composition, structures, orders, alignments and mechanical properties, use as carriers for topical drug and/or gene sustained delivery, and serving as substrates for the regulation of cell behaviors, which could benefit musculoskeletal tissue repair and regeneration. It further highlights a few of the many recent applications of electrospun nanofiber scaffolds in repairing and regenerating various orthopedic tissues. Finally, the article concludes with perspectives on the challenges and future directions for better design, fabrication and utilization of nanofiber scaffolds for orthopedic tissue engineering.
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Affiliation(s)
- Bing Ma
- Marshall Institute for Interdisciplinary Research & Center for Diagnostic Nanosystems, Marshall University, Huntington, WV 25755, USA
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121
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Shao Y, Fu J. Integrated micro/nanoengineered functional biomaterials for cell mechanics and mechanobiology: a materials perspective. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:1494-533. [PMID: 24339188 PMCID: PMC4076293 DOI: 10.1002/adma.201304431] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Revised: 10/11/2013] [Indexed: 04/14/2023]
Abstract
The rapid development of micro/nanoengineered functional biomaterials in the last two decades has empowered materials scientists and bioengineers to precisely control different aspects of the in vitro cell microenvironment. Following a philosophy of reductionism, many studies using synthetic functional biomaterials have revealed instructive roles of individual extracellular biophysical and biochemical cues in regulating cellular behaviors. Development of integrated micro/nanoengineered functional biomaterials to study complex and emergent biological phenomena has also thrived rapidly in recent years, revealing adaptive and integrated cellular behaviors closely relevant to human physiological and pathological conditions. Working at the interface between materials science and engineering, biology, and medicine, we are now at the beginning of a great exploration using micro/nanoengineered functional biomaterials for both fundamental biology study and clinical and biomedical applications such as regenerative medicine and drug screening. In this review, an overview of state of the art micro/nanoengineered functional biomaterials that can control precisely individual aspects of cell-microenvironment interactions is presented and they are highlighted them as well-controlled platforms for mechanistic studies of mechano-sensitive and -responsive cellular behaviors and integrative biology research. The recent exciting trend where micro/nanoengineered biomaterials are integrated into miniaturized biological and biomimetic systems for dynamic multiparametric microenvironmental control of emergent and integrated cellular behaviors is also discussed. The impact of integrated micro/nanoengineered functional biomaterials for future in vitro studies of regenerative medicine, cell biology, as well as human development and disease models are discussed.
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Affiliation(s)
- Yue Shao
- Integrated Biosystems and Biomechanics Laboratory, Department of Mechanical Engineering, University of Michigan, Ann Arbor, 48109 (USA)
| | - Jianping Fu
- Integrated Biosystems and Biomechanics Laboratory, Department of Mechanical Engineering, University of Michigan, Ann Arbor, 48109 (USA). Department of Biomedical Engineering, University of Michigan, Ann Arbor, 48109 (USA)
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122
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Abstract
With the high occurrence of cardiovascular disease and increasing numbers of patients requiring vascular access, there is a significant need for small-diameter (<6 mm inner diameter) vascular graft that can provide long-term patency. Despite the technological improvements, restenosis and graft thrombosis continue to hamper the success of the implants. Vascular tissue engineering is a new field that has undergone enormous growth over the last decade and has proposed valid solutions for blood vessels repair. The goal of vascular tissue engineering is to produce neovessels and neoorgan tissue from autologous cells using a biodegradable polymer as a scaffold. The most important advantage of tissue-engineered implants is that these tissues can grow, remodel, rebuild, and respond to injury. This review describes the development of polymeric materials over the years and current tissue engineering strategies for the improvement of vascular conduits.
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Goonoo N, Bhaw-Luximon A, Jhurry D. In vitro and in vivo cytocompatibility of electrospun nanofiber scaffolds for tissue engineering applications. RSC Adv 2014. [DOI: 10.1039/c4ra05218h] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An electrospun polymeric-based nanofibrous scaffold mimicking the extracellular matrix and serving as a temporary support for cell growth, adhesion, migration and proliferation.
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Affiliation(s)
- N. Goonoo
- ANDI Centre of Excellence for Biomedical and Biomaterials Research
- University of Mauritius
- Réduit, Mauritius
| | - A. Bhaw-Luximon
- ANDI Centre of Excellence for Biomedical and Biomaterials Research
- University of Mauritius
- Réduit, Mauritius
| | - D. Jhurry
- ANDI Centre of Excellence for Biomedical and Biomaterials Research
- University of Mauritius
- Réduit, Mauritius
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Matlock-Colangelo L, Baeumner AJ. Biologically inspired nanofibers for use in translational bioanalytical systems. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2014; 7:23-42. [PMID: 25014340 DOI: 10.1146/annurev-anchem-071213-020035] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Electrospun nanofiber mats are characterized by large surface-area-to-volume ratios, high porosities, and a diverse range of chemical functionalities. Although electrospun nanofibers have been used successfully to increase the immobilization efficiency of biorecognition elements and improve the sensitivity of biosensors, the full potential of nanofiber-based biosensing has not yet been realized. Therefore, this review presents novel electrospun nanofiber chemistries developed in fields such as tissue engineering and drug delivery that have direct application within the field of biosensing. Specifically, this review focuses on fibers that directly encapsulate biological additives that serve as immobilization matrices for biological species and that are used to create biomimetic scaffolds. Biosensors that incorporate these nanofibers are presented, along with potential future biosensing applications such as the development of cell culture and in vivo sensors.
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Affiliation(s)
- Lauren Matlock-Colangelo
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853; ,
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125
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Cao Y, Xiong D, Niu Y, Mei Y, Yin Z, Gui J. Compressive properties and creep resistance of a novel, porous, semidegradable poly(vinyl alcohol)/poly(lactic-co-glycolic acid) scaffold for articular cartilage repair. J Appl Polym Sci 2013. [DOI: 10.1002/app.40311] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yi Cao
- College of Materials Science and Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Dangsheng Xiong
- College of Materials Science and Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Yuxiang Niu
- College of Materials Science and Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Yi Mei
- College of Materials Science and Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Zhaowei Yin
- Orthopedic Department; Nanjing First Hospital, Nanjing Medical University; Nanjing 210006 China
| | - Jianchao Gui
- Orthopedic Department; Nanjing First Hospital, Nanjing Medical University; Nanjing 210006 China
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126
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Lee SU, Chung YG, Kim SJ, Oh IH, Kim YS, Ju SH. Does size difference in allogeneic cancellous bone granules loaded with differentiated autologous cultured osteoblasts affect osteogenic potential? Cell Tissue Res 2013; 355:337-44. [PMID: 24346683 DOI: 10.1007/s00441-013-1760-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2013] [Accepted: 10/30/2013] [Indexed: 11/27/2022]
Abstract
We study the efficacy of bone regeneration by using two differently sized allogeneic cancellous bone granules loaded with autologous cultured osteoblasts in a rabbit model. Critical-sized bone defects of the radial shaft were made in 40 New Zealand White rabbits. Small allogeneic bone granules (150-300 μm in diameter) loaded with cultured differentiated autologous osteoblasts were implanted into one forearm (SBG group) and large bone granules (500-710 μm) loaded with osteoblasts were implanted into the forearm of the other side (LBG group). Radiographic evaluations were performed at 3, 6, 9 and 12 weeks and histology and micro-CT image analysis were carried out at 6 and 12 weeks post-implantation. On radiographic evaluation, the LBG group showed a higher bone quantity index at 3 and 6 weeks post-implantation (P < 0.05) but statistical significance was lost at 9 and 12 weeks. The progression of biological processes of the SBG group was faster than that of the LBG group. On micro-CT image analysis, the LBG group revealed a higher total bone volume and surface area than the SBG group at 6 weeks (P < 0.05) but the difference decreased at 12 weeks and was without statistical significance. Histological evaluation also revealed faster progression of new bone formation and maturation in the SBG group. Thus, the two differently sized allogeneic bone granules loaded with co-cultured autologous osteoblasts show no differences in the amount of bone regeneration, although the SBG group exhibits faster progression of bone regeneration and remodeling. This method might therefore provide benefits, such as a short healing time and easy application in an injectable form, in a clinical setting.
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Affiliation(s)
- Sang-Uk Lee
- Department of Orthopedic Surgery, Incheon St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 137-701, Korea
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127
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Fabrication and characteristics of anti-inflammatory magnesium hydroxide incorporated PLGA scaffolds formed with various porogen materials. Macromol Res 2013. [DOI: 10.1007/s13233-014-2040-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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128
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Xia Y, Zhou P, Cheng X, Xie Y, Liang C, Li C, Xu S. Selective laser sintering fabrication of nano-hydroxyapatite/poly-ε-caprolactone scaffolds for bone tissue engineering applications. Int J Nanomedicine 2013; 8:4197-213. [PMID: 24204147 PMCID: PMC3818022 DOI: 10.2147/ijn.s50685] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The regeneration of functional tissue in osseous defects is a formidable challenge in orthopedic surgery. In the present study, a novel biomimetic composite scaffold, here called nano-hydroxyapatite (HA)/poly-ε-caprolactone (PCL) was fabricated using a selective laser sintering technique. The macrostructure, morphology, and mechanical strength of the scaffolds were characterized. Scanning electronic microscopy (SEM) showed that the nano-HA/PCL scaffolds exhibited predesigned, well-ordered macropores and interconnected micropores. The scaffolds have a range of porosity from 78.54% to 70.31%, and a corresponding compressive strength of 1.38 MPa to 3.17 MPa. Human bone marrow stromal cells were seeded onto the nano-HA/PCL or PCL scaffolds and cultured for 28 days in vitro. As indicated by the level of cell attachment and proliferation, the nano-HA/PCL showed excellent biocompatibility, comparable to that of PCL scaffolds. The hydrophilicity, mineralization, alkaline phosphatase activity, and Alizarin Red S staining indicated that the nano-HA/PCL scaffolds are more bioactive than the PCL scaffolds in vitro. Measurements of recombinant human bone morphogenetic protein-2 (rhBMP-2) release kinetics showed that after nano-HA was added, the material increased the rate of rhBMP-2 release. To investigate the in vivo biocompatibility and osteogenesis of the composite scaffolds, both nano-HA/PCL scaffolds and PCL scaffolds were implanted in rabbit femur defects for 3, 6, and 9 weeks. The wounds were studied radiographically and histologically. The in vivo results showed that both nano-HA/PCL composite scaffolds and PCL scaffolds exhibited good biocompatibility. However, the nano-HA/PCL scaffolds enhanced the efficiency of new bone formation more than PCL scaffolds and fulfilled all the basic requirements of bone tissue engineering scaffolds. Thus, they show large potential for use in orthopedic and reconstructive surgery.
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Affiliation(s)
- Yan Xia
- Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
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Girard YK, Wang C, Ravi S, Howell MC, Mallela J, Alibrahim M, Green R, Hellermann G, Mohapatra SS, Mohapatra S. A 3D fibrous scaffold inducing tumoroids: a platform for anticancer drug development. PLoS One 2013; 8:e75345. [PMID: 24146752 PMCID: PMC3797770 DOI: 10.1371/journal.pone.0075345] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Accepted: 08/12/2013] [Indexed: 01/18/2023] Open
Abstract
The development of a suitable three dimensional (3D) culture system for anticancer drug development remains an unmet need. Despite progress, a simple, rapid, scalable and inexpensive 3D-tumor model that recapitulates in vivo tumorigenesis is lacking. Herein, we report on the development and characterization of a 3D nanofibrous scaffold produced by electrospinning a mixture of poly(lactic-co-glycolic acid) (PLGA) and a block copolymer of polylactic acid (PLA) and mono-methoxypolyethylene glycol (mPEG) designated as 3P. Cancer cells cultured on the 3P scaffold formed tight irregular aggregates similar to in vivo tumors, referred to as tumoroids that depended on the topography and net charge of the scaffold. 3P scaffolds induced tumor cells to undergo the epithelial-to-mesenchymal transition (EMT) as demonstrated by up-regulation of vimentin and loss of E-cadherin expression. 3P tumoroids showed higher resistance to anticancer drugs than the same tumor cells grown as monolayers. Inhibition of ERK and PI3K signal pathways prevented EMT and reduced tumoroid formation, diameter and number. Fine needle aspirates, collected from tumor cells implanted in mice when cultured on 3P scaffolds formed tumoroids, but showed decreased sensitivity to anticancer drugs, compared to tumoroids formed by direct seeding. These results show that 3P scaffolds provide an excellent platform for producing tumoroids from tumor cell lines and from biopsies and that the platform can be used to culture patient biopsies, test for anticancer compounds and tailor a personalized cancer treatment.
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Affiliation(s)
- Yvonne K. Girard
- Department of Molecular Medicine, University of South Florida, Tampa, Florida, United States of America
- USF Nanomedicine Research Center, Morsani College of Medicine, University of South Florida, Tampa, Florida, United States of America
| | - Chunyan Wang
- Department of Molecular Medicine, University of South Florida, Tampa, Florida, United States of America
- USF Nanomedicine Research Center, Morsani College of Medicine, University of South Florida, Tampa, Florida, United States of America
| | - Sowndharya Ravi
- Department of Molecular Medicine, University of South Florida, Tampa, Florida, United States of America
- USF Nanomedicine Research Center, Morsani College of Medicine, University of South Florida, Tampa, Florida, United States of America
| | - Mark C. Howell
- Department of Molecular Medicine, University of South Florida, Tampa, Florida, United States of America
- USF Nanomedicine Research Center, Morsani College of Medicine, University of South Florida, Tampa, Florida, United States of America
| | - Jaya Mallela
- Department of Molecular Medicine, University of South Florida, Tampa, Florida, United States of America
- USF Nanomedicine Research Center, Morsani College of Medicine, University of South Florida, Tampa, Florida, United States of America
| | - Mahmoud Alibrahim
- Chemical and Biomedical Engineering Department, University of South Florida, Tampa, Florida, United States of America
| | - Ryan Green
- Department of Molecular Medicine, University of South Florida, Tampa, Florida, United States of America
- USF Nanomedicine Research Center, Morsani College of Medicine, University of South Florida, Tampa, Florida, United States of America
| | - Gary Hellermann
- USF Nanomedicine Research Center, Morsani College of Medicine, University of South Florida, Tampa, Florida, United States of America
| | - Shyam S. Mohapatra
- USF Nanomedicine Research Center, Morsani College of Medicine, University of South Florida, Tampa, Florida, United States of America
| | - Subhra Mohapatra
- Department of Molecular Medicine, University of South Florida, Tampa, Florida, United States of America
- USF Nanomedicine Research Center, Morsani College of Medicine, University of South Florida, Tampa, Florida, United States of America
- * E-mail:
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Kolambkar YM, Bajin M, Wojtowicz A, Hutmacher DW, García AJ, Guldberg RE. Nanofiber orientation and surface functionalization modulate human mesenchymal stem cell behavior in vitro. Tissue Eng Part A 2013; 20:398-409. [PMID: 24020454 DOI: 10.1089/ten.tea.2012.0426] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Electrospun nanofiber meshes have emerged as a new generation of scaffold membranes possessing a number of features suitable for tissue regeneration. One of these features is the flexibility to modify their structure and composition to orchestrate specific cellular responses. In this study, we investigated the effects of nanofiber orientation and surface functionalization on human mesenchymal stem cell (hMSC) migration and osteogenic differentiation. We used an in vitro model to examine hMSC migration into a cell-free zone on nanofiber meshes and mitomycin C treatment to assess the contribution of proliferation to the observed migration. Poly (ε-caprolactone) meshes with oriented topography were created by electrospinning aligned nanofibers on a rotating mandrel, while randomly oriented controls were collected on a stationary collector. Both aligned and random meshes were coated with a triple-helical, type I collagen-mimetic peptide, containing the glycine-phenylalanine-hydroxyproline-glycine-glutamate-arginine (GFOGER) motif. Our results indicate that nanofiber GFOGER peptide functionalization and orientation modulate cellular behavior, individually, and in combination. GFOGER significantly enhanced the migration, proliferation, and osteogenic differentiation of hMSCs on nanofiber meshes. Aligned nanofiber meshes displayed increased cell migration along the direction of fiber orientation compared to random meshes; however, fiber alignment did not influence osteogenic differentiation. Compared to each other, GFOGER coating resulted in a higher proliferation-driven cell migration, whereas fiber orientation appeared to generate a larger direct migratory effect. This study demonstrates that peptide surface modification and topographical cues associated with fiber alignment can be used to direct cellular behavior on nanofiber mesh scaffolds, which may be exploited for tissue regeneration.
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Affiliation(s)
- Yash M Kolambkar
- 1 Wallace H. Coulter Department of Biomedical Engineering, Parker H. Petit Institute for Bioengineering and Bioscience , Georgia Institute of Technology, Atlanta, Georgia
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131
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Microscale diffusion measurements and simulation of a scaffold with a permeable strut. Int J Mol Sci 2013; 14:20157-70. [PMID: 24152434 PMCID: PMC3821608 DOI: 10.3390/ijms141020157] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 09/06/2013] [Accepted: 09/10/2013] [Indexed: 12/18/2022] Open
Abstract
Electrospun nanofibrous structures provide good performance to scaffolds in tissue engineering. We measured the local diffusion coefficients of 3-kDa FITC-dextran in line patterns of electrospun nanofibrous structures fabricated by the direct-write electrospinning (DWES) technique using the fluorescence recovery after photobleaching (FRAP) method. No significant differences were detected between DWES line patterns fabricated with polymer supplied at flow rates of 0.1 and 0.5 mL/h. The oxygen diffusion coefficients of samples were estimated to be ~92%–94% of the oxygen diffusion coefficient in water based on the measured diffusion coefficient of 3-kDa FITC-dextran. We also simulated cell growth and distribution within spatially patterned scaffolds with struts consisting of either oxygen-permeable or non-permeable material. The permeable strut scaffolds exhibited enhanced cell growth. Saturated depths at which cells could grow to confluence were 15% deeper for the permeable strut scaffolds than for the non-permeable strut scaffold.
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132
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Yao X, Peng R, Ding J. Cell-material interactions revealed via material techniques of surface patterning. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:5257-5286. [PMID: 24038153 DOI: 10.1002/adma.201301762] [Citation(s) in RCA: 358] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 07/15/2013] [Indexed: 06/02/2023]
Abstract
Cell-material interactions constitute a key fundamental topic in biomaterials study. Various cell cues and matrix cues as well as soluble factors regulate cell behaviors on materials. These factors are coupled with each other as usual, and thus it is very difficult to unambiguously elucidate the role of each regulator. The recently developed material techniques of surface patterning afford unique ways to reveal the underlying science. This paper reviews the pertinent material techniques to fabricate patterns of microscale and nanoscale resolutions, and corresponding cell studies. Some issues are emphasized, such as cell localization on patterned surfaces of chemical contrast, and effects of cell shape, cell size, cell-cell contact, and seeding density on differentiation of stem cells. Material cues to regulate cell adhesion, cell differentiation and other cell events are further summed up. Effects of some physical properties, such as surface topography and matrix stiffness, on cell behaviors are also discussed; nanoscaled features of substrate surfaces to regulate cell fate are summarized as well. The pertinent work sheds new insight into the cell-material interactions, and is stimulating for biomaterial design in regenerative medicine, tissue engineering, and high-throughput detection, diagnosis, and drug screening.
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Affiliation(s)
- Xiang Yao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Advanced Materials Laboratory, Fudan University, 200433, Shanghai, China
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133
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Abstract
INTRODUCTION Organ/tissue replacement therapy is inherently difficult for application in the tissue engineering field due to immune rejection that limits the long-term efficacy of implanted devices. As the application of tissue engineering in the biomedical field has steadily expanded, stem cells have emerged as a viable option to promote the immune acceptance of implantable devices and to expedite alleviation of the pathological conditions. With various novel scaffolds being introduced, nanofibers which have a three-dimensional architecture can be considered as an efficient carrier for stem cells. AREAS COVERED This article reviews the novel tissue engineering processes involved with nanofiber and stem cells. Topics such as the fabrication of nanofiber via electrospinning techniques, the interaction between nanofiber scaffold and specific cell and advanced techniques to enhance the stability of stem cells are delineated in detail. In addition, cardiovascular applications of nanofiber scaffolds loaded with stem cells are examined from a clinical perspective. EXPERT OPINION Electrospun nanofibers have been intensively explored as a tool for the architecture control of cardiovascular tissue engineering due to their tunable physicochemical properties. The modification of nanofiber with biological cues, which provide rapid differentiation of stem cells into a specific lineage and protect stem cells under the harsh conditions (i.e., hypoxia), will significantly enhance therapeutic efficacies of transplanted cells. A combination of nanofiber carriers and stem cell therapy for tissue regeneration seems to pose enormous potential for the treatment of cardiac diseases including atherosclerosis and myocardial infarction.
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Affiliation(s)
- Byeongtaek Oh
- University of Missouri-Kansas, School of Pharmacy, Division of Pharmaceutical Sciences , Kansas City, MO 64108 , USA
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134
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Soscia DA, Sequeira SJ, Schramm RA, Jayarathanam K, Cantara SI, Larsen M, Castracane J. Salivary gland cell differentiation and organization on micropatterned PLGA nanofiber craters. Biomaterials 2013; 34:6773-84. [PMID: 23777914 PMCID: PMC3755621 DOI: 10.1016/j.biomaterials.2013.05.061] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 05/24/2013] [Indexed: 12/20/2022]
Abstract
There is a need for an artificial salivary gland as a long-term remedy for patients suffering from salivary hypofunction, a leading cause of chronic xerostomia (dry mouth). Current salivary gland tissue engineering approaches are limited in that they either lack sufficient physical cues and surface area needed to facilitate epithelial cell differentiation, or they fail to provide a mechanism for assembling an interconnected branched network of cells. We have developed highly-ordered arrays of curved hemispherical "craters" in polydimethylsiloxane (PDMS) using wafer-level integrated circuit (IC) fabrication processes, and lined them with electrospun poly-lactic-co-glycolic acid (PLGA) nanofibers, designed to mimic the three-dimensional (3-D) in vivo architecture of the basement membrane surrounding spherical acini of salivary gland epithelial cells. These micropatterned scaffolds provide a method for engineering increased surface area and were additionally investigated for their ability to promote cell polarization. Two immortalized salivary gland cell lines (SIMS, ductal and Par-C10, acinar) were cultured on fibrous crater arrays of various radii and compared with those grown on flat PLGA nanofiber substrates, and in 3-D Matrigel. It was found that by increasing crater curvature, the average height of the cell monolayer of SIMS cells and to a lesser extent, Par-C10 cells, increased to a maximum similar to that seen in cells grown in 3-D Matrigel. Increasing curvature resulted in higher expression levels of tight junction protein occludin in both cell lines, but did not induce a change in expression of adherens junction protein E-cadherin. Additionally, increasing curvature promoted polarity of both cell lines, as a greater apical localization of occludin was seen in cells on substrates of higher curvature. Lastly, substrate curvature increased expression of the water channel protein aquaporin-5 (Aqp-5) in Par-C10 cells, suggesting that curved nanofiber substrates are more suitable for promoting differentiation of salivary gland cells.
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Affiliation(s)
- David A. Soscia
- College of Nanoscale Science and Engineering, University at Albany, State University of New York, 257 Fuller Road, Albany, NY 12203, USA
| | - Sharon J. Sequeira
- Dept. of Biological Sciences, University at Albany, State University of New York, 1400 Washington Avenue, Life Sciences Bldg., Albany, NY 12222, USA
| | - Robert A. Schramm
- College of Nanoscale Science and Engineering, University at Albany, State University of New York, 257 Fuller Road, Albany, NY 12203, USA
| | - Kavitha Jayarathanam
- College of Nanoscale Science and Engineering, University at Albany, State University of New York, 257 Fuller Road, Albany, NY 12203, USA
| | - Shraddha I. Cantara
- Dept. of Biological Sciences, University at Albany, State University of New York, 1400 Washington Avenue, Life Sciences Bldg., Albany, NY 12222, USA
| | - Melinda Larsen
- Dept. of Biological Sciences, University at Albany, State University of New York, 1400 Washington Avenue, Life Sciences Bldg., Albany, NY 12222, USA
| | - James Castracane
- College of Nanoscale Science and Engineering, University at Albany, State University of New York, 257 Fuller Road, Albany, NY 12203, USA
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135
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Ramalingam N, Natarajan TS, Rajiv S. Development and Characterization of Electrospun Poly(2-hydroxy ethyl methacrylate) for Tissue Engineering Applications. ADVANCES IN POLYMER TECHNOLOGY 2013. [DOI: 10.1002/adv.21348] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Sheeja Rajiv
- Department of Chemistry; Anna University; Chennai; 600 025; India
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136
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Kane RJ, Ma PX. Biomimetic Nanofibrous Scaffolds for Bone Tissue Engineering Applications. Biomimetics (Basel) 2013. [DOI: 10.1002/9781118810408.ch4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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137
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Jia L, Prabhakaran MP, Qin X, Ramakrishna S. Stem cell differentiation on electrospun nanofibrous substrates for vascular tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:4640-50. [PMID: 24094171 DOI: 10.1016/j.msec.2013.07.021] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 06/01/2013] [Accepted: 07/17/2013] [Indexed: 12/16/2022]
Abstract
Nanotechnology has enabled the engineering of a variety of materials to meet the current challenges and requirements in vascular tissue regeneration. In our study, poly-L-lactide (PLLA) and hybrid PLLA/collagen (PLLA/Coll) nanofibers (3:1 and 1:1) with fiber diameters of 210 to 430 nm were fabricated by electrospinning. Their morphological, chemical and mechanical characterizations were carried out using scanning electron microscopy (SEM), attenuated total reflectance Fourier transform infrared (ATR-FTIR), and tensile instrument, respectively. Bone marrow derived mesenchymal stem cells (MSCs) seeded on electrospun nanofibers that are capable of differentiating into vascular cells have great potential for repair of the vascular system. We investigated the potential of MSCs for vascular cell differentiation in vitro on electrospun PLLA/Coll nanofibrous scaffolds using endothelial differentiation media. After 20 days of culture, MSC proliferation on PLLA/Coll(1:1) scaffolds was found 256% higher than the cell proliferation on PLLA scaffolds. SEM images showed that the MSC differentiated endothelial cells on PLLA/Coll scaffolds showed cobblestone morphology in comparison to the fibroblastic type of undifferentiated MSCs. The functionality of the cells in the presence of 'endothelial induction media', was further demonstrated from the immunocytochemical analysis, where the MSCs on PLLA/Coll (1:1) scaffolds differentiated to endothelial cells and expressed the endothelial cell specific proteins such as platelet endothelial cell adhesion molecule-1 (PECAM-1 or CD31) and Von Willebrand factor (vWF). From the results of the SEM analysis and protein expression studies, we concluded that the electrospun PLLA/Coll nanofibers could mimic the native vascular ECM environment and might be promising substrates for potential application towards vascular regeneration.
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Affiliation(s)
- Lin Jia
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, No. 2999 North Renmin Road, Songjiang, Shanghai 201620, China; Center for Nanofibers and Nanotechnology, E3-05-14, Nanoscience and Nanotechnology Initiative, Faculty of Engineering, National University of Singapore, 2 Engineering Drive 3, Singapore 117576, Singapore
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Zhang S, Chen L, Jiang Y, Cai Y, Xu G, Tong T, Zhang W, Wang L, Ji J, Shi P, Ouyang HW. Bi-layer collagen/microporous electrospun nanofiber scaffold improves the osteochondral regeneration. Acta Biomater 2013; 9:7236-47. [PMID: 23567945 DOI: 10.1016/j.actbio.2013.04.003] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Revised: 03/20/2013] [Accepted: 04/01/2013] [Indexed: 02/08/2023]
Abstract
An optimal scaffold is crucial for osteochondral regeneration. Collagen and electrospun nanofibers have been demonstrated to facilitate cartilage and bone regeneration, respectively. However, the effect of combining collagen and electrospun nanofibers on osteochondral regeneration has yet to be evaluated. Here, we report that the combination of collagen and electrospun poly-l-lactic acid nanofibers synergistically promotes osteochondral regeneration. We first fabricated bi-layer microporous scaffold with collagen and electrospun poly-l-lactic acid nanofibers (COL-nanofiber). Mesenchymal stem cells were cultured on the bi-layer scaffold and their adhesion, proliferation and differentiation were examined. Moreover, osteochondral defects were created in rabbits and implanted with COL-nanofiber scaffold. Cartilage and subchondral bone regeneration were evaluated at 6 and 12weeks after surgery. Compared with COL scaffold, cells on COL-nanofiber scaffold exhibited more robust osteogenic differentiation, indicated by higher expression levels of OCN and runx2 genes as well as the accumulation of calcium nodules. Furthermore, implantation of COL-nanofiber scaffold seeded with cells induced more rapid subchondral bone emergence, and better cartilage formation, which led to better functional repair of osteochondral defects as manifested by histological staining, biomechanical test and micro-computed tomography data. Our study underscores the potential of using the bi-layer microporous COL-nanofiber scaffold for the treatment of deep osteochondral defects.
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139
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Kim IL, Khetan S, Baker BM, Chen CS, Burdick JA. Fibrous hyaluronic acid hydrogels that direct MSC chondrogenesis through mechanical and adhesive cues. Biomaterials 2013; 34:5571-80. [PMID: 23623322 PMCID: PMC3652578 DOI: 10.1016/j.biomaterials.2013.04.004] [Citation(s) in RCA: 170] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Accepted: 04/03/2013] [Indexed: 12/15/2022]
Abstract
Electrospinning has recently gained much interest due to its ability to form scaffolds that mimic the nanofibrous nature of the extracellular matrix, such as the size and depth-dependent alignment of collagen fibers within hyaline cartilage. While much progress has been made in developing bulk, isotropic hydrogels for tissue engineering and understanding how the microenvironment of such scaffolds affects cell response, these effects have not been extensively studied in a nanofibrous system. Here, we show that the mechanics (through intrafiber crosslink density) and adhesivity (through RGD density) of electrospun hyaluronic acid (HA) fibers significantly affect human mesenchymal stem cell (hMSC) interactions and gene expression. Specifically, hMSC spreading, proliferation, and focal adhesion formation were dependent on RGD density, but not on the range of fiber mechanics investigated. Moreover, traction-mediated fiber displacements generally increased with more adhesive fibers. The expression of chondrogenic markers, unlike trends in cell spreading and cytoskeletal organization, was influenced by both fiber mechanics and adhesivity, in which softer fibers and lower RGD densities generally enhanced chondrogenesis. This work not only reveals concurrent effects of mechanics and adhesivity in a fibrous context, but also highlights fibrous HA hydrogels as a promising scaffold for future cartilage repair strategies.
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Affiliation(s)
- Iris L. Kim
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA [Tel: 215-898-8537; Fax: 215-573-2071]
| | - Sudhir Khetan
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA [Tel: 215-898-8537; Fax: 215-573-2071]
| | - Brendon M. Baker
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA [Tel: 215-898-8537; Fax: 215-573-2071]
| | - Christopher S. Chen
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA [Tel: 215-898-8537; Fax: 215-573-2071]
| | - Jason A. Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA [Tel: 215-898-8537; Fax: 215-573-2071]
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140
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Obata A, Ozasa H, Kasuga T, Jones JR. Cotton wool-like poly(lactic acid)/vaterite composite scaffolds releasing soluble silica for bone tissue engineering. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:1649-1658. [PMID: 23606191 DOI: 10.1007/s10856-013-4930-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Accepted: 04/13/2013] [Indexed: 06/02/2023]
Abstract
Cotton wool-like poly(L-lactic acid) and siloxane-doped vaterite (SiV) composite scaffolds were prepared with a modified electrospinning system for bone tissue engineering applications. The effects of changing the SiV content in the materials from 10 to 30 wt% on elasticity and the ability to release calcium ions and soluble silica were evaluated. The elasticity of the cotton wool-like composites was almost the same as that of the PLLA from the results of compressibility and recovery tests. The materials released calcium ions for more than 56 days and soluble silica for 28-56 days in a tris buffer solution (pH 7.4). Mouse osteoblast-like cells (MC3T3-E1 cells) were cultured on/in the cotton wool-like materials or the fibremats out of the same composite materials as that used for the cotton wool-like materials. The cells penetrated into and proliferated inside the cotton wool-like materials, although they mainly adhered on the fibremat surface.
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Affiliation(s)
- Akiko Obata
- Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, 466-8555, Japan.
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141
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Miceli M, Franci G, Dell'Aversana C, Ricciardiello F, Petraglia F, Carissimo A, Perone L, Maruotti GM, Savarese M, Martinelli P, Cancemi M, Altucci L. MePR: a novel human mesenchymal progenitor model with characteristics of pluripotency. Stem Cells Dev 2013; 22:2368-83. [PMID: 23597129 DOI: 10.1089/scd.2012.0498] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Human embryo stem cells or adult tissues are excellent models for discovery and characterization of differentiation processes. The aims of regenerative medicine are to define the molecular and physiological mechanisms that govern stem cells and differentiation. Human mesenchymal stem cells (hMSCs) are multipotent adult stem cells that are able to differentiate into a variety of cell types under controlled conditions both in vivo and in vitro, and they have the remarkable ability of self-renewal. hMSCs derived from amniotic fluid and characterized by the expression of Oct-4 and Nanog, typical markers of pluripotent cells, represent an excellent model for studies on stemness. Unfortunately, the limited amount of cells available from each donation and, above all, the limited number of replications do not allow for detailed studies. Here, we report on the immortalization and characterization of novel mesenchymal progenitor (MePR) cell lines from amniotic fluid-derived hMSCs, whose biological properties are similar to primary amniocytes. Our data indicate that MePR cells display the multipotency potential and differentiation rates of hMSCs, thus representing a useful model to study both mechanisms of differentiation and pharmacological approaches to induce selective differentiation. In particular, MePR-2B cells, which carry a bona fide normal karyotype, might be used in basic stem cell research, leading to the development of new approaches for stem cell therapy and tissue engineering.
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Affiliation(s)
- Marco Miceli
- Dipartimento di Biochimica, Biofisica e Patologia Generale, Seconda Università di Napoli , Napoli, Italy
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142
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Bosworth LA, Turner LA, Cartmell SH. State of the art composites comprising electrospun fibres coupled with hydrogels: a review. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2013. [DOI: 10.1016/j.nano.2012.10.008] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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143
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Hou S, Zhao L, Shen Q, Yu J, Ng C, Kong X, Wu D, Song M, Shi X, Xu X, OuYang WH, He R, Zhao XZ, Lee T, Brunicardi FC, Garcia MA, Ribas A, Lo RS, Tseng HR. Polymer nanofiber-embedded microchips for detection, isolation, and molecular analysis of single circulating melanoma cells. Angew Chem Int Ed Engl 2013; 52:3379-83. [PMID: 23436302 PMCID: PMC3807678 DOI: 10.1002/anie.201208452] [Citation(s) in RCA: 181] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Revised: 12/20/2012] [Indexed: 12/19/2022]
Affiliation(s)
- Shuang Hou
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA, Web: http://www.tseng-lab.com
| | - Libo Zhao
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA
| | - Qinglin Shen
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA
- Department of Applied Physics and Department of Oncology Surgery,
Wuhan University, Wuhan, PRC
| | - Juehua Yu
- Department of Surgery, University of California, Los Angeles
| | - Charles Ng
- Division of Hematology and Oncology, Department of Medicine,
Department of Surgery, and Department of Molecular and Medical Pharmacology,
University of California, Los Angeles
| | - Xiangju Kong
- Division of Dermatology, Department of Medicine, University of
California, Los Angeles
| | - Dongxia Wu
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA
| | - Min Song
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA
| | - Xiaohong Shi
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA
| | - Xiaochun Xu
- CytoLumina Technologies Corp., 21038 Commerce Point Dr., Walnut,
CA 91789, USA
| | - Wei-Han OuYang
- CytoLumina Technologies Corp., 21038 Commerce Point Dr., Walnut,
CA 91789, USA
| | - Rongxian He
- Department of Applied Physics and Department of Oncology Surgery,
Wuhan University, Wuhan, PRC
| | - Xing-Zhong Zhao
- Department of Applied Physics and Department of Oncology Surgery,
Wuhan University, Wuhan, PRC
| | - Tom Lee
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA
| | | | - Mitch André Garcia
- CytoLumina Technologies Corp., 21038 Commerce Point Dr., Walnut,
CA 91789, USA
| | - Antoni Ribas
- Division of Hematology and Oncology, Department of Medicine,
Department of Surgery, and Department of Molecular and Medical Pharmacology,
University of California, Los Angeles
| | - Roger S. Lo
- Division of Dermatology, Department of Medicine, University of
California, Los Angeles
| | - Hsian-Rong Tseng
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA
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144
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Meng Z, Li H, Sun Z, Zheng W, Zheng Y. Fabrication of mineralized electrospun PLGA and PLGA/gelatin nanofibers and their potential in bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:699-706. [DOI: 10.1016/j.msec.2012.10.021] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Revised: 09/18/2012] [Accepted: 10/28/2012] [Indexed: 01/10/2023]
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145
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Hou S, Zhao L, Shen Q, Yu J, Ng C, Kong X, Wu D, Song M, Shi X, Xu X, OuYang WH, He R, Zhao XZ, Lee T, Brunicardi FC, Garcia MA, Ribas A, Lo RS, Tseng HR. Polymer Nanofiber-Embedded Microchips for Detection, Isolation, and Molecular Analysis of Single Circulating Melanoma Cells. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201208452] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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146
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Higuchi A, Ling QD, Chang Y, Hsu ST, Umezawa A. Physical Cues of Biomaterials Guide Stem Cell Differentiation Fate. Chem Rev 2013; 113:3297-328. [DOI: 10.1021/cr300426x] [Citation(s) in RCA: 335] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Akon Higuchi
- Department of Chemical and Materials
Engineering, National Central University, Jhongli, Taoyuan 32001, Taiwan
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura,
Setagaya-ku, Tokyo 157-8535, Japan
- Cathay Medical Research Institute, Cathay General Hospital, No. 32, Ln 160, Jian-Cheng Road, Hsi-Chi City, Taipei 221, Taiwan
| | - Qing-Dong Ling
- Cathay Medical Research Institute, Cathay General Hospital, No. 32, Ln 160, Jian-Cheng Road, Hsi-Chi City, Taipei 221, Taiwan
- Institute of Systems Biology
and Bioinformatics, National Central University, No. 300 Jhongda Rd., Jhongli, Taoyuan 32001, Taiwan
| | - Yung Chang
- Department of Chemical Engineering, R&D Center for Membrane Technology, Chung Yuan Christian University, 200 Chung-Bei Rd., Jhongli, Taoyuan 320, Taiwan
| | - Shih-Tien Hsu
- Taiwan Landseed Hospital, 77 Kuangtai Road, Pingjen City, Tao-Yuan
County 32405, Taiwan
| | - Akihiro Umezawa
- Department of Reproductive Biology, National Research Institute for Child Health and Development, 2-10-1 Okura,
Setagaya-ku, Tokyo 157-8535, Japan
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147
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La WG, Shin JY, Bhang SH, Jin M, Yoon HH, Noh SS, Im GI, Kim CS, Kim BS. Culture on a 3,4-dihydroxy-l-phenylalanine-coated surface promotes the osteogenic differentiation of human mesenchymal stem cells. Tissue Eng Part A 2013; 19:1255-63. [PMID: 23237247 DOI: 10.1089/ten.tea.2012.0165] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The culture surface can affect the in vitro differentiation of stem cells. In this study, we investigated whether modifying the culture surface with 3,4-dihydroxy-l-phenylalanine (DOPA), an element of mussel adhesion protein, could enhance the in vitro osteogenic differentiation of human bone marrow-derived mesenchymal stem cells (hBMMSCs). hBMMSCs cultured on DOPA-coated plates exhibited better cell adhesion and spreading compared with noncoated conventional tissue culture plates. The DOPA coated did not affect the apoptosis or viability of the cultured hBMMSCs. Also, hBMMSCs cultured on DOPA-coated plates exhibited a higher degree of osteogenic differentiation than did hBMMSCs cultured on noncoated plates, as evaluated with alkaline phosphate (ALP) activity, calcium content, and the mRNA expression of runt-related transcription factor 2, ALP, and osteocalcin. Further, hBMMSCs cultured on DOPA-coated plates demonstrated a higher capability of ectopic bone formation in vivo following implantation in the subcutaneous space of athymic mice compared with hBMMSCs cultured on noncoated plates, as evaluated with microcomputer topography analysis and histomorphometry. These results indicate that modifying the culture surface with DOPA can enhance the in vitro osteogenic differentiation of hBMMSCs.
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Affiliation(s)
- Wan-Geun La
- School of Chemical and Biological Engineering, Seoul National University, Seoul 151-744, Republic of Korea
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148
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Holan V, Javorkova E, Trosan P. The growth and delivery of mesenchymal and limbal stem cells using copolymer polyamide 6/12 nanofiber scaffolds. Methods Mol Biol 2013; 1014:187-99. [PMID: 23690014 DOI: 10.1007/978-1-62703-432-6_13] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2022]
Abstract
The injured or otherwise damaged cornea is healed by limbal stem cells (LSC). If the limbus where LSC reside is also damaged or nonfunctional, the cornea cannot heal properly and this defect leads to impaired vision that can result in blindness. The only way to treat total LSC deficiency is by transplantation of limbal tissue or a transfer of LSC. Recently, mesenchymal stem cells (MSC) have been shown as another promising source of stem cells for corneal healing and regeneration. Here, we describe a protocol for the use of polyamide 6/12 nanofiber scaffolds for the growth of MSC and LSC, and for their transfer onto a mechanically damaged ocular surface in the experimental mouse model.
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Affiliation(s)
- Vladimir Holan
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic
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149
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Bye FJ, Bissoli J, Black L, Bullock AJ, Puwanun S, Moharamzadeh K, Reilly GC, Ryan AJ, MacNeil S. Development of bilayer and trilayer nanofibrous/microfibrous scaffolds for regenerative medicine. Biomater Sci 2013; 1:942-951. [DOI: 10.1039/c3bm60074b] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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150
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Abstract
Mesenchymal stem cells (MSCs) are multipotent adult stem cells which have self-renewal capacity and differentiation potential into several mesenchymal lineages including bones, cartilages, adipose tissues and tendons. MSCs may repair tissue injuries and prevent immune cell activation and proliferation. Immunomodulation and secretion of growth factors by MSCs have led to realizing the true potential of MSC-based cell therapy. The use of MSCs as immunomodulators has been explored in cell/organ transplant, tissue repair, autoimmune diseases, and prevention of graft vs host disease (GVHD). This review focuses on the clinical applications of MSC-based cell therapy, with particular emphasis on islet transplantation for treating type I diabetes.
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Affiliation(s)
- Vaibhav Mundra
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, Tennessee 38103, United States
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