51
|
Magnetic super-hydrophilic carbon nanotubes/graphene oxide composite as nanocarriers of mesenchymal stem cells: Insights into the time and dose dependences. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:694-701. [DOI: 10.1016/j.msec.2016.05.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Revised: 04/16/2016] [Accepted: 05/10/2016] [Indexed: 12/18/2022]
|
52
|
Kim SE, Yun YP, Shim KS, Kim HJ, Park K, Song HR. 3D printed alendronate-releasing poly(caprolactone) porous scaffolds enhance osteogenic differentiation and bone formation in rat tibial defects. Biomed Mater 2016; 11:055005. [DOI: 10.1088/1748-6041/11/5/055005] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
53
|
Andalib MN, Lee JS, Ha L, Dzenis Y, Lim JY. Focal adhesion kinase regulation in stem cell alignment and spreading on nanofibers. Biochem Biophys Res Commun 2016; 473:920-925. [PMID: 27040763 DOI: 10.1016/j.bbrc.2016.03.151] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 03/30/2016] [Indexed: 10/22/2022]
Abstract
While electrospun nanofibers have demonstrated the potential for novel tissue engineering scaffolds, very little is known about the molecular mechanism of how cells sense and adapt to nanofibers. Here, we revealed the role of focal adhesion kinase (FAK), one of the key molecular sensors in the focal adhesion complex, in regulating mesenchymal stem cell (MSC) shaping on nanofibers. We produced uniaxially aligned and randomly distributed nanofibers from poly(l-lactic acid) to have the same diameters (about 130 nm) and evaluated MSC behavior on these nanofibers comparing with that on flat PLLA control. C3H10T1/2 murine MSCs exhibited upregulations in FAK expression and phosphorylation (pY397) on nanofibrous cultures as assessed by immunoblotting, and this trend was even greater on aligned nanofibers. MSCs showed significantly elongated and well-spread morphologies on aligned and random nanofibers, respectively. In the presence of FAK silencing via small hairpin RNA (shRNA), cell elongation length in the aligned nanofiber direction (cell major axis length) was significantly decreased, while cells still showed preferred orientation along the aligned nanofibers. On random nanofibers, MSCs with FAK-shRNA showed impaired cell spreading resulting in smaller cell area and higher circularity. Our study provides new data on how MSCs shape their morphologies on aligned and random nanofibrous cultures potentially via FAK-mediated mechanism.
Collapse
Affiliation(s)
- Mohammad Nahid Andalib
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Jeong Soon Lee
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Ligyeom Ha
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Yuris Dzenis
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Jung Yul Lim
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA.,The Graduate School of Dentistry, Kyung Hee University, Seoul, Korea
| |
Collapse
|
54
|
Polymeric Electrospinning for Musculoskeletal Regenerative Engineering. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2016. [DOI: 10.1007/s40883-016-0013-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
55
|
Xie L, Yu H, Yang W, Zhu Z, Yue L. Preparation,in vitrodegradability, cytotoxicity, andin vivobiocompatibility of porous hydroxyapatite whisker-reinforced poly(L-lactide) biocomposite scaffolds. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2016; 27:505-28. [DOI: 10.1080/09205063.2016.1140613] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
56
|
Kumar S, Maiti P. Controlled biodegradation of polymers using nanoparticles and its application. RSC Adv 2016. [DOI: 10.1039/c6ra08641a] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Controlled biodegradation mechanism has been revealed using different nanoparticles which eventually regulate pH of media.
Collapse
Affiliation(s)
- Sunil Kumar
- School of Materials Science and Technology
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi 221 005
- India
| | - Pralay Maiti
- School of Materials Science and Technology
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi 221 005
- India
| |
Collapse
|
57
|
Preclinical in vivo Performance of Novel Biodegradable, Electrospun Poly(lactic acid) and Poly(lactic-co-glycolic acid) Nanocomposites: A Review. MATERIALS 2015; 8:4912-4931. [PMID: 28793481 PMCID: PMC5455478 DOI: 10.3390/ma8084912] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 06/26/2015] [Accepted: 07/24/2015] [Indexed: 12/19/2022]
Abstract
Bone substitute materials have witnessed tremendous development over the past decades and autogenous bone may still be considered the gold standard for many clinicians and clinical approaches in order to rebuild and restore bone defects. However, a plethora of novel xenogenic and synthetic bone substitute materials have been introduced in recent years in the field of bone regeneration. As the development of bone is actually a calcification process within a collagen fiber arrangement, the use of scaffolds in the formation of fibers may offer some advantages, along with additional handling characteristics. This review focuses on material characteristics and degradation behavior of electrospun biodegradable polyester scaffolds. Furthermore, we concentrated on the preclinical in vivo performance with regard to bone regeneration in preclinical studies. The major findings are as follows: Scaffold composition and architecture determine its biological behavior and degradation characteristics; The incorporation of inorganic substances and/or organic substances within composite scaffolds enhances new bone formation; L-poly(lactic acid) and poly(lactic-co-glycolic acid) composite scaffolds, especially when combined with basic substances like hydroxyapatite, tricalcium phosphate or demineralized bone powder, seem not to induce inflammatory tissue reactions in vivo.
Collapse
|
58
|
Jiang T, Carbone EJ, Lo KWH, Laurencin CT. Electrospinning of polymer nanofibers for tissue regeneration. Prog Polym Sci 2015. [DOI: 10.1016/j.progpolymsci.2014.12.001] [Citation(s) in RCA: 336] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
59
|
Münchow EA, Albuquerque MTP, Zero B, Kamocki K, Piva E, Gregory RL, Bottino MC. Development and characterization of novel ZnO-loaded electrospun membranes for periodontal regeneration. Dent Mater 2015; 31:1038-51. [PMID: 26116414 DOI: 10.1016/j.dental.2015.06.004] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 04/16/2015] [Accepted: 06/01/2015] [Indexed: 12/29/2022]
Abstract
OBJECTIVES This study reports on the synthesis, materials characterization, antimicrobial capacity, and cytocompatibility of novel ZnO-loaded membranes for guided tissue/bone regeneration (GTR/GBR). METHODS Poly(ɛ-caprolactone) (PCL) and PCL/gelatin (PCL/GEL) were dissolved in hexafluoropropanol and loaded with ZnO at distinct concentrations: 0 (control), 5, 15, and 30wt.%. Electrospinning was performed using optimized parameters and the fibers were characterized via scanning and transmission electron microscopies (SEM/TEM), energy dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR), contact angle (CA), mechanical testing, antimicrobial activity against periodontopathogens, and cytotoxicity test using human dental pulp stem cells (hDPSCs). Data were analyzed using ANOVA and Tukey (α=5%). RESULTS ZnO nanoparticles were successfully incorporated into the overall submicron fibers, which showed fairly good morphology and microstructure. Upon ZnO nanoparticles' incorporation, the PCL and PCL/GEL fibers became thicker and thinner, respectively. All GEL-containing membranes showed lower CA than the PCL-based membranes, which were highly hydrophobic. Overall, the mechanical properties of the membranes were reduced upon ZnO incorporation, except for PCL-based membranes containing ZnO at the 30wt.% concentration. The presence of GEL enhanced the stretching ability of membranes under wet conditions. All ZnO-containing membranes displayed antibacterial activity against the bacteria tested, which was generally more pronounced with increased ZnO content. All membranes synthesized in this study demonstrated satisfactory cytocompatibility, although the presence of 30wt.% ZnO led to decreased viability. SIGNIFICANCE Collectively, this study suggests that PCL- and PCL/GEL-based membranes containing a low content of ZnO nanoparticles can potentially function as a biologically safe antimicrobial GTR/GBR membrane.
Collapse
Affiliation(s)
- Eliseu A Münchow
- Department of Restorative Dentistry, Division of Dental Biomaterials, Indiana University School of Dentistry (IUSD), Indianapolis, IN 46202, USA; Department of Operative Dentistry, Federal University of Pelotas (UFPEL), School of Dentistry, Pelotas, RS 96015-560, Brazil
| | - Maria Tereza P Albuquerque
- Department of Restorative Dentistry, Division of Dental Biomaterials, Indiana University School of Dentistry (IUSD), Indianapolis, IN 46202, USA; Graduate Program in Restorative Dentistry, Universidade Estadual Paulista, São José dos Campos Dental School, São José dos Campos, São Paulo 12245-000, Brazil
| | - Bianca Zero
- Department of Restorative Dentistry, Division of Dental Biomaterials, Indiana University School of Dentistry (IUSD), Indianapolis, IN 46202, USA
| | - Krzysztof Kamocki
- Department of Restorative Dentistry, Division of Dental Biomaterials, Indiana University School of Dentistry (IUSD), Indianapolis, IN 46202, USA
| | - Evandro Piva
- Department of Operative Dentistry, Federal University of Pelotas (UFPEL), School of Dentistry, Pelotas, RS 96015-560, Brazil
| | | | - Marco C Bottino
- Department of Restorative Dentistry, Division of Dental Biomaterials, Indiana University School of Dentistry (IUSD), Indianapolis, IN 46202, USA.
| |
Collapse
|
60
|
Tunable release of hydrophilic compounds from hydrophobic nanostructured fibers prepared by emulsion electrospinning. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.04.045] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
61
|
Yang X, Li Z. Influence of hydroxyapatite and BMP-2 on bioactivity and bone tissue formation ability of electrospun PLLA nanofibers. J Appl Polym Sci 2015. [DOI: 10.1002/app.42249] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiaozhan Yang
- School of Optoelectronic Information, Chongqing University of Technology; Chongqing 400054 China
| | - Zhensheng Li
- College of Biomedical Engineering, Third Military Medical University; Chongqing 400038 China
| |
Collapse
|
62
|
Nandi SK, Kundu B, Mahato A, Thakur NL, Joardar SN, Mandal BB. In vitro and in vivo evaluation of the marine sponge skeleton as a bone mimicking biomaterial. Integr Biol (Camb) 2015; 7:250-62. [DOI: 10.1039/c4ib00289j] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This investigation was carried out to identify and characterize marine sponges as potential bioscaffolds in bone tissue engineering.
Collapse
Affiliation(s)
- Samit K. Nandi
- Department of Veterinary Surgery and Radiology
- West Bengal University of Animal and Fishery Sciences
- Kolkata
- India
| | - Biswanath Kundu
- Bioceramics and Coating Division
- CSIR-Central Glass and Ceramic Research Institute
- Kolkata
- India
| | - Arnab Mahato
- Bioceramics and Coating Division
- CSIR-Central Glass and Ceramic Research Institute
- Kolkata
- India
| | | | - Siddhartha N. Joardar
- Department of Veterinary Microbiology
- West Bengal University of Animal and Fishery Sciences
- Kolkata
- India
| | - Biman B. Mandal
- Department of Biotechnology
- Indian Institute of Technology
- Guwahati
- India
| |
Collapse
|
63
|
Frohbergh ME, Katsman A, Mondrinos MJ, Stabler CT, Hankenson KD, Oristaglio JT, Lelkes PI. Osseointegrative properties of electrospun hydroxyapatite-containing nanofibrous chitosan scaffolds. Tissue Eng Part A 2014; 21:970-81. [PMID: 25336062 DOI: 10.1089/ten.tea.2013.0789] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Our long-term goal is to develop smart biomaterials that can facilitate regeneration of critical-size craniofacial lesions. In this study, we tested the hypothesis that biomimetic scaffolds electrospun from chitosan (CTS) will promote tissue repair and regeneration in a critical size calvarial defect. To test this hypothesis, we first compared in vitro ability of electrospun CTS scaffolds crosslinked with genipin (CTS-GP) to those of mineralized CTS-GP scaffolds containing hydroxyapatite (CTS-HA-GP), by assessing proliferation/metabolic activity and alkaline phosphatase (ALP) levels of murine mesenchymal stem cells (mMSCs). The cells' metabolic activity exhibited a biphasic behavior, indicative of initial proliferation followed by subsequent differentiation for all scaffolds. ALP activity of mMSCs, a surrogate measure of osteogenic differentiation, increased over time in culture. After 3 weeks in maintenance medium, ALP activity of mMSCs seeded onto CTS-HA-GP scaffolds was approximately two times higher than that of cells cultured on CTS-GP scaffolds. The mineralized CTS-HA-GP scaffolds were also osseointegrative in vivo, as inferred from the enhanced bone regeneration in a murine model of critical size calvarial defects. Tissue regeneration was evaluated over a 3 month period by microCT and histology (Hematoxylin and Eosin and Masson's Trichrome). Treatment of the lesions with CTS-HA-GP scaffolds induced a 38% increase in the area of de novo generated mineralized tissue area after 3 months, whereas CTS-GP scaffolds only led to a 10% increase. Preseeding with mMSCs significantly enhanced the regenerative capacity of CTS-GP scaffolds (by ∼3-fold), to 35% increase in mineralized tissue area after 3 months. CTS-HA-GP scaffolds preseeded with mMSCs yielded 45% new mineralized tissue formation in the defects. We conclude that the presence of HA in the CTS-GP scaffolds significantly enhances their osseointegrative capacity and that mineralized chitosan-based scaffolds crosslinked with genipin may represent a unique biomaterial with possible clinical relevance for the repair of critical calvarial bone defects.
Collapse
Affiliation(s)
- Michael E Frohbergh
- 1 School of Biomedical Engineering, Science and Health Systems, Drexel University , Philadelphia, Pennsylvania
| | | | | | | | | | | | | |
Collapse
|
64
|
Younesi M, Islam A, Kishore V, Anderson JM, Akkus O. Tenogenic Induction of Human MSCs by Anisotropically Aligned Collagen Biotextiles. ADVANCED FUNCTIONAL MATERIALS 2014; 24:5762-5770. [PMID: 25750610 PMCID: PMC4349415 DOI: 10.1002/adfm.201400828] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
A novel biofabrication modality, electrophoretic compaction with macromolecular alignment, was utilized to make collagen threads that mimic the native tendon's structure and mechanical properties. A device with kinematic electrodes was designed to fabricate collagen threads in continuous length. For the first time, a 3D-biotextile was woven purely from collagen. Mechanical properties and load-displacement behavior of the biotextile mimicked those of the native tendon while presenting a porosity of 80%. The open pore network facilitated cell seeding across the continuum of the bioscaffold. Mesenchymal stem cells (MSCs) seeded in the woven scaffold underwent tenogenic differentiation in the absence of growth factors and synthesized a matrix that was positive for tenomodulin, COMP and type I collagen. Up-regulation of tenomodulin, a tendon specific marker, was 11.6 ± 3.5 fold, COMP was up-regulated 16.7 ± 5.5 fold, and Col I was up-regulated 6.9 ± 2.7 fold greater on ELAC threads when compared to randomly oriented collagen gels. These results demonstrate that a bioscaffold woven by using collagen threads with densely compacted and anisotropically aligned substrate texture stimulates tenogenesis topographically, rendering the electrochemically aligned collagen as a promising candidate for functional repair of tendons and ligaments.
Collapse
Affiliation(s)
- Mousa Younesi
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH 44106
| | - Anowarul Islam
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH 44106
| | - Vipuil Kishore
- Department of Chemical Engineering, Florida Institute of Technology, Melbourne, FL 32901
| | - James M. Anderson
- Department of Pathology, Case Western Reserve University, Cleveland, OH 44106
- Department of Macromolecular Sciences, Case Western Reserve University, Cleveland, OH 44106
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106
| | - Ozan Akkus
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH 44106
- Department of Orthopedics, Case Western Reserve University, Cleveland, OH 44106
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106
- Corresponding Author: Professor Ozan Akkus, Departments of Mechanical and Aerospace Engineering, Biomedical Engineering and Orthopaedics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, (Phone): 216-368-4175,
| |
Collapse
|
65
|
Shakib K, Tan A, Soskic V, Seifalian AM. Regenerative nanotechnology in oral and maxillofacial surgery. Br J Oral Maxillofac Surg 2014; 52:884-93. [PMID: 25218313 DOI: 10.1016/j.bjoms.2014.08.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 08/14/2014] [Indexed: 11/15/2022]
Abstract
Regenerative nanotechnology is at the forefront of medical research, and translational medicine is a challenge to both scientists and clinicians. Although there has been an exponential rise in the volume of research generated about it for both medical and surgical uses, key questions remain about its actual benefits. Nevertheless, some people think that therapeutics based on its principles may form the core of applied research for the future. Here we give an account of its current use in oral and maxillofacial surgery, and implications and challenges for the future.
Collapse
Affiliation(s)
- Kaveh Shakib
- Department of Oral and Maxillofacial Surgery, Royal Free London NHS Foundation Trust, London, UK; UCL Centre for Nanotechnology & Regenerative Medicine, Division of Surgery & Interventional Science, University College London (UCL), London, UK.
| | - Aaron Tan
- UCL Centre for Nanotechnology & Regenerative Medicine, Division of Surgery & Interventional Science, University College London (UCL), London, UK; UCL Medical School, University College London (UCL), London, UK
| | | | - Alexander M Seifalian
- UCL Centre for Nanotechnology & Regenerative Medicine, Division of Surgery & Interventional Science, University College London (UCL), London, UK; Royal Free London NHS Foundation Trust, London, UK.
| |
Collapse
|
66
|
Sullivan MP, McHale KJ, Parvizi J, Mehta S. Nanotechnology: current concepts in orthopaedic surgery and future directions. Bone Joint J 2014; 96-B:569-73. [PMID: 24788488 DOI: 10.1302/0301-620x.96b5.33606] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Nanotechnology is the study, production and controlled manipulation of materials with a grain size < 100 nm. At this level, the laws of classical mechanics fall away and those of quantum mechanics take over, resulting in unique behaviour of matter in terms of melting point, conductivity and reactivity. Additionally, and likely more significant, as grain size decreases, the ratio of surface area to volume drastically increases, allowing for greater interaction between implants and the surrounding cellular environment. This favourable increase in surface area plays an important role in mesenchymal cell differentiation and ultimately bone-implant interactions. Basic science and translational research have revealed important potential applications for nanotechnology in orthopaedic surgery, particularly with regard to improving the interaction between implants and host bone. Nanophase materials more closely match the architecture of native trabecular bone, thereby greatly improving the osseo-integration of orthopaedic implants. Nanophase-coated prostheses can also reduce bacterial adhesion more than conventionally surfaced prostheses. Nanophase selenium has shown great promise when used for tumour reconstructions, as has nanophase silver in the management of traumatic wounds. Nanophase silver may significantly improve healing of peripheral nerve injuries, and nanophase gold has powerful anti-inflammatory effects on tendon inflammation. Considerable advances must be made in our understanding of the potential health risks of production, implantation and wear patterns of nanophase devices before they are approved for clinical use. Their potential, however, is considerable, and is likely to benefit us all in the future.
Collapse
Affiliation(s)
- M P Sullivan
- Hospital of the University of Pennsylvania, Department of Orthopaedic Surgery, 2 Silverstein, 3400 Spruce St, Philadelphia, USA
| | | | | | | |
Collapse
|
67
|
Huang CL, Lee WL, Loo JS. Drug-eluting scaffolds for bone and cartilage regeneration. Drug Discov Today 2014; 19:714-24. [DOI: 10.1016/j.drudis.2013.11.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 10/16/2013] [Accepted: 11/06/2013] [Indexed: 12/19/2022]
|
68
|
Lee JH, Park JH, El-Fiqi A, Kim JH, Yun YR, Jang JH, Han CM, Lee EJ, Kim HW. Biointerface control of electrospun fiber scaffolds for bone regeneration: engineered protein link to mineralized surface. Acta Biomater 2014; 10:2750-61. [PMID: 24468581 DOI: 10.1016/j.actbio.2014.01.021] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Revised: 01/11/2014] [Accepted: 01/16/2014] [Indexed: 12/12/2022]
Abstract
Control over the interface of biomaterials that favors the initial adhesion and subsequent differentiation of stem cells is one of the key strategies in bone tissue engineering. Here we engineer the interface of biopolymer electrospun fiber matrices with a fusion protein of fibronectin 9-10 domain (FNIII9-10) and osteocalcin (OCN), aiming to stimulate mesenchymal stem cell (MSC) functions, including initial adhesion, growth and osteogenic differentiation. In particular, a specific tethering of FNIII9-10-OCN protein was facilitated by the hydroxyapatite (HA) mineralization of the biopolymer surface through a molecular recognition of OCN to the HA crystal lattice. The FNIII9-10-OCN anchorage to the HA-mineralized fiber was observed to be highly specific and tightly bound to preserve stability over a long period. Initial cell adhesion levels, as well as the spreading shape and process, of MSCs within 24h were strikingly different between the fibers linked with and without fusion protein. Significant up-regulations in the mRNA expression of adhesion signaling molecules occurred with the fusion protein link, as analyzed by the reverse transcriptase polymerase chain reaction. The expression of a series of osteogenic-related genes at later stages, over 2-3weeks, was significantly improved in the fusion protein-tailored fiber, and the osteogenic protein levels were highly stimulated, as confirmed by immunofluorescence imaging and fluorescence-activated cell sorting analyses. In vivo study in a rat calvarium model confirmed a higher quantity of new bone formation in the fiber linked with fusion protein, and a further increase was noticed when the MSCs were tissue-engineered with the fusion protein-linked fiber. Collectively, these results indicate that FN-OCN fusion protein links via HA mineralization is a facile tool to generate a biointerface with cell-attractive and osteogenic potential, and that the engineered fibrous matrix is a potential bone regenerative scaffold.
Collapse
Affiliation(s)
- Jae Ho Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Republic of Korea
| | - Jeong-Hui Park
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Republic of Korea
| | - Ahmed El-Fiqi
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Republic of Korea
| | - Joong-Hyun Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Republic of Korea
| | - Ye-Rang Yun
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Republic of Korea
| | - Jun-Hyeog Jang
- Department of Biochemistry, Medical College, Inha University, Republic of Korea
| | - Cheol-Min Han
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Republic of Korea; Department of Biomaterials Science, College of Dentistry, Dankook University, Republic of Korea
| | - Eun-Jung Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University Graduate School, Republic of Korea; Department of Biochemistry, Medical College, Inha University, Republic of Korea.
| |
Collapse
|
69
|
Veleirinho B, Coelho DS, Dias PF, Maraschin M, Pinto R, Cargnin-Ferreira E, Peixoto A, Souza JA, Ribeiro-do-Valle RM, Lopes-da-Silva JA. Foreign body reaction associated with PET and PET/chitosan electrospun nanofibrous abdominal meshes. PLoS One 2014; 9:e95293. [PMID: 24740104 PMCID: PMC3989343 DOI: 10.1371/journal.pone.0095293] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Accepted: 03/26/2014] [Indexed: 02/07/2023] Open
Abstract
Electrospun materials have been widely explored for biomedical applications because of their advantageous characteristics, i.e., tridimensional nanofibrous structure with high surface-to-volume ratio, high porosity, and pore interconnectivity. Furthermore, considering the similarities between the nanofiber networks and the extracellular matrix (ECM), as well as the accepted role of changes in ECM for hernia repair, electrospun polymer fiber assemblies have emerged as potential materials for incisional hernia repair. In this work, we describe the application of electrospun non-absorbable mats based on poly(ethylene terephthalate) (PET) in the repair of abdominal defects, comparing the performance of these meshes with that of a commercial polypropylene mesh and a multifilament PET mesh. PET and PET/chitosan electrospun meshes revealed good performance during incisional hernia surgery, post-operative period, and no evidence of intestinal adhesion was found. The electrospun meshes were flexible with high suture retention, showing tensile strengths of 3 MPa and breaking strains of 8-33%. Nevertheless, a significant foreign body reaction (FBR) was observed in animals treated with the nanofibrous materials. Animals implanted with PET and PET/chitosan electrospun meshes (fiber diameter of 0.71 ± 0.28 µm and 3.01 ± 0.72 µm, respectively) showed, respectively, foreign body granuloma formation, averaging 4.2-fold and 7.4-fold greater than the control commercial mesh group (Marlex). Many foreign body giant cells (FBGC) involving nanofiber pieces were also found in the PET and PET/chitosan groups (11.9 and 19.3 times more FBGC than control, respectively). In contrast, no important FBR was observed for PET microfibers (fiber diameter = 18.9 ± 0.21 µm). Therefore, we suggest that the reduced dimension and the high surface-to-volume ratio of the electrospun fibers caused the FBR reaction, pointing out the need for further studies to elucidate the mechanisms underlying interactions between cells/tissues and nanofibrous materials in order to gain a better understanding of the implantation risks associated with nanostructured biomaterials.
Collapse
Affiliation(s)
- Beatriz Veleirinho
- QOPNA Research Unit, Department of Chemistry, University of Aveiro, Aveiro, Portugal
- Biotechnology and Biosciences Post-Graduation Program, Federal University of Santa Catarina, Florianópolis, Brazil
- * E-mail:
| | - Daniela S. Coelho
- Department of Cell Biology, Embryology, and Genetics, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Paulo F. Dias
- Department of Cell Biology, Embryology, and Genetics, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Marcelo Maraschin
- Plant Morphogenesis and Biochemistry Laboratory, Federal University of Santa Catarina, Florianópolis, Brazil
| | | | | | - Ana Peixoto
- Department of Pediatrics, Federal University of Santa Catarina, Florianópolis, Brazil
| | - José A. Souza
- Department of Pediatrics, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Rosa M. Ribeiro-do-Valle
- Biotechnology and Biosciences Post-Graduation Program, Federal University of Santa Catarina, Florianópolis, Brazil
| | | |
Collapse
|
70
|
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.
Collapse
Affiliation(s)
- Bing Ma
- Marshall Institute for Interdisciplinary Research & Center for Diagnostic Nanosystems, Marshall University, Huntington, WV 25755, USA
| | | | | | | | | |
Collapse
|
71
|
Rodríguez-Évora M, García-Pizarro E, del Rosario C, Pérez-López J, Reyes R, Delgado A, Rodríguez-Rey JC, Évora C. Smurf1 Knocked-Down, Mesenchymal Stem Cells and BMP-2 in an Electrospun System for Bone Regeneration. Biomacromolecules 2014; 15:1311-22. [DOI: 10.1021/bm401854d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - Javier Pérez-López
- Department
of Molecular Biology, University of Cantabria, IFIMAV, Santander, Spain
| | | | | | - José C Rodríguez-Rey
- Department
of Molecular Biology, University of Cantabria, IFIMAV, Santander, Spain
| | | |
Collapse
|
72
|
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.
Collapse
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
| |
Collapse
|
73
|
Monteiro N, Martins A, Pires R, Faria S, Fonseca NA, Moreira JN, Reis RL, Neves NM. Immobilization of bioactive factor-loaded liposomes on the surface of electrospun nanofibers targeting tissue engineering. Biomater Sci 2014; 2:1195-1209. [DOI: 10.1039/c4bm00069b] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Dexamethasone-loaded liposomes immobilized at the surface of electrospun polycaprolactone nanofiber meshes successfully promoted the osteogenic differentiation of human bone marrow-derived mesenchymal stem cells.
Collapse
Affiliation(s)
- Nelson Monteiro
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- Department of Polymer Engineering
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
| | - Albino Martins
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- Department of Polymer Engineering
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
| | - Ricardo Pires
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- Department of Polymer Engineering
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
| | - Susana Faria
- Department of Mathematics for Science and Technology
- Research CMAT
- University of Minho
- 4800-058 Guimarães, Portugal
| | - Nuno A. Fonseca
- CNC – Center for Neurosciences and Cell Biology
- FFUC – Faculty of Pharmacy of the University of Coimbra
- 3000 Coimbra, Portugal
| | - João N. Moreira
- CNC – Center for Neurosciences and Cell Biology
- FFUC – Faculty of Pharmacy of the University of Coimbra
- 3000 Coimbra, Portugal
| | - Rui L. Reis
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- Department of Polymer Engineering
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
| | - Nuno M. Neves
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- Department of Polymer Engineering
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
| |
Collapse
|
74
|
Chatakun P, Núñez-Toldrà R, Díaz López EJ, Gil-Recio C, Martínez-Sarrà E, Hernández-Alfaro F, Ferrés-Padró E, Giner-Tarrida L, Atari M. The effect of five proteins on stem cells used for osteoblast differentiation and proliferation: a current review of the literature. Cell Mol Life Sci 2014; 71:113-42. [PMID: 23568025 PMCID: PMC11113514 DOI: 10.1007/s00018-013-1326-0] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 03/13/2013] [Accepted: 03/14/2013] [Indexed: 01/04/2023]
Abstract
Bone-tissue engineering is a therapeutic target in the field of dental implant and orthopedic surgery. It is therefore essential to find a microenvironment that enhances the growth and differentiation of osteoblasts both from mesenchymal stem cells (MSCs) and those derived from dental pulp. The aim of this review is to determine the relationship among the proteins fibronectin (FN), osteopontin (OPN), tenascin (TN), bone sialoprotein (BSP), and bone morphogenetic protein (BMP2) and their ability to coat different types of biomaterials and surfaces to enhance osteoblast differentiation. Pre-treatment of biomaterials with FN during the initial phase of osteogenic differentiation on all types of surfaces, including slotted titanium and polymers, provides an ideal microenvironment that enhances adhesion, morphology, and proliferation of pluripotent and multipotent cells. Likewise, in the second stage of differentiation, surface coating with BMP2 decreases the diameter and the pore size of the scaffold, causing better adhesion and reduced proliferation of BMP-MSCs. Coating oligomerization surfaces with OPN and BSP promotes cell adhesion, but it is clear that the polymeric coating material BSP alone is insufficient to induce priming of MSCs and functional osteoblastic differentiation in vivo. Finally, TN is involved in mineralization and can accelerate new bone formation in a multicellular environment but has no effect on the initial stage of osteogenesis.
Collapse
Affiliation(s)
- P. Chatakun
- Laboratory for Regenerative Medicine, College of Dentistry, Universitat Internacional de Catalunya, C/Josep Trueta s/n, Sant Cugat del Vallès, 08195 Barcelona, Spain
- Police General Hospital, Bangkok, Thailand
| | - R. Núñez-Toldrà
- Laboratory for Regenerative Medicine, College of Dentistry, Universitat Internacional de Catalunya, C/Josep Trueta s/n, Sant Cugat del Vallès, 08195 Barcelona, Spain
- Chair of Regenerative Implantology MIS-UIC, Universitat Internacional de Catalunya, Barcelona, Spain
| | - E. J. Díaz López
- Laboratory for Regenerative Medicine, College of Dentistry, Universitat Internacional de Catalunya, C/Josep Trueta s/n, Sant Cugat del Vallès, 08195 Barcelona, Spain
| | - C. Gil-Recio
- Laboratory for Regenerative Medicine, College of Dentistry, Universitat Internacional de Catalunya, C/Josep Trueta s/n, Sant Cugat del Vallès, 08195 Barcelona, Spain
- Chair of Regenerative Implantology MIS-UIC, Universitat Internacional de Catalunya, Barcelona, Spain
| | - E. Martínez-Sarrà
- Laboratory for Regenerative Medicine, College of Dentistry, Universitat Internacional de Catalunya, C/Josep Trueta s/n, Sant Cugat del Vallès, 08195 Barcelona, Spain
- Chair of Regenerative Implantology MIS-UIC, Universitat Internacional de Catalunya, Barcelona, Spain
| | - F. Hernández-Alfaro
- Surgery and Oral Implantology Department, College of Dentistry, Universitat Internacional de Catalunya, Barcelona, Spain
| | - E. Ferrés-Padró
- Surgery and Oral Implantology Department, College of Dentistry, Universitat Internacional de Catalunya, Barcelona, Spain
- Oral and Maxillofacial Surgery Department, Fundacio Hospital de Nens de Barcelona, Barcelona, Spain
| | - L. Giner-Tarrida
- Laboratory for Regenerative Medicine, College of Dentistry, Universitat Internacional de Catalunya, C/Josep Trueta s/n, Sant Cugat del Vallès, 08195 Barcelona, Spain
- Chair of Regenerative Implantology MIS-UIC, Universitat Internacional de Catalunya, Barcelona, Spain
| | - M. Atari
- Laboratory for Regenerative Medicine, College of Dentistry, Universitat Internacional de Catalunya, C/Josep Trueta s/n, Sant Cugat del Vallès, 08195 Barcelona, Spain
- Chair of Regenerative Implantology MIS-UIC, Universitat Internacional de Catalunya, Barcelona, Spain
- Surgery and Oral Implantology Department, College of Dentistry, Universitat Internacional de Catalunya, Barcelona, Spain
| |
Collapse
|
75
|
Chen Y, Sun Z, Li Y, Hong Y. Rapid osteogenic differentiation of mesenchymal stem cells on hydroxyapatite nanocrystal clusters-oriented nanotopography. RSC Adv 2014. [DOI: 10.1039/c4ra10027a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The randomly-oriented HAP nanocrystal clusters-constructed nanotopography, prepared via a nucleation-oriented aggregation–recrystallization process from the HAP slices, can dictate BM-MSCs to differentiate into osteogenic lineages rapidly.
Collapse
Affiliation(s)
- Ying Chen
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu, P. R. China
| | - Zhihui Sun
- Department of Pharmacy of the First Hospital
- Jilin University
- Changchun 130012, P. R. China
| | - Yanyan Li
- Department of Pharmacy of the First Hospital
- Jilin University
- Changchun 130012, P. R. China
| | - Youliang Hong
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu, P. R. China
| |
Collapse
|
76
|
Eslahi N, Hadjighassem MR, Joghataei MT, Mirzapour T, Bakhtiyari M, Shakeri M, Pirhajati V, Shirinbayan P, Koruji M. The effects of poly L-lactic acid nanofiber scaffold on mouse spermatogonial stem cell culture. Int J Nanomedicine 2013; 8:4563-76. [PMID: 24348035 PMCID: PMC3848747 DOI: 10.2147/ijn.s45535] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
INTRODUCTION A 3D-nanofiber scaffold acts in a similar way to the extracellular matrix (ECM)/basement membrane that enhances the proliferation and self-renewal of stem cells. The goal of the present study was to investigate the effects of a poly L-lactic acid (PLLA) nanofiber scaffold on frozen-thawed neonate mouse spermatogonial stem cells (SSCs) and testis tissues. METHODS The isolated spermatogonial cells were divided into six culture groups: (1) fresh spermatogonial cells, (2) fresh spermatogonial cells seeded onto PLLA, (3) frozen-thawed spermatogonial cells, (4) frozen-thawed spermatogonial cells seeded onto PLLA, (5) spermatogonial cells obtained from frozen-thawed testis tissue, and (6) spermatogonial cells obtained from frozen-thawed testis tissue seeded onto PLLA. Spermatogonial cells and testis fragments were cryopreserved and cultured for 3 weeks. Cluster assay was performed during the culture. The presence of spermatogonial cells in the culture was determined by a reverse transcriptase polymerase chain reaction for spermatogonial markers (Oct4, GFRα-1, PLZF, Mvh(VASA), Itgα6, and Itgβ1), as well as the ultrastructural study of cell clusters and SSCs transplantation to a recipient azoospermic mouse. The significance of the data was analyzed using the repeated measures and analysis of variance. RESULTS The findings indicated that the spermatogonial cells seeded on PLLA significantly increased in vitro spermatogonial cell cluster formations in comparison with the control groups (culture of SSCs not seeded on PLLA) (P≤0.001). The viability rate for the frozen cells after thawing was 63.00% ± 3.56%. This number decreased significantly (40.00% ± 0.82%) in spermatogonial cells obtained from the frozen-thawed testis tissue. Both groups, however, showed in vitro cluster formation. Although the expression of spermatogonial markers was maintained after 3 weeks of culture, there was a significant downregulation for some spermatogonial genes in the experimental groups compared with those of the control groups. Furthermore, transplantation assay and transmission electron microscopy studies suggested the presence of SSCs among the cultured cells. CONCLUSION Although PLLA can increase the in vitro cluster formation of neonate fresh and frozen-thawed spermatogonial cells, it may also cause them to differentiate during cultivation. The study therefore has implications for SSCs proliferation and germ cell differentiation in vitro.
Collapse
Affiliation(s)
- Neda Eslahi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran ; Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Reza Hadjighassem
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran ; Department of Neurosciences, School of Advanced Medical Technologies, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Taghi Joghataei
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran ; Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Tooba Mirzapour
- Department of Biology, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Mehrdad Bakhtiyari
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran ; Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Malak Shakeri
- Department of Animal Science, Agricultural Campus, University of Tehran, Tehran, Iran
| | - Vahid Pirhajati
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran ; Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Peymaneh Shirinbayan
- Pediatric Neuro-Rehabilitation Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Morteza Koruji
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran ; Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
77
|
Bressan E, Carraro A, Ferroni L, Gardin C, Sbricoli L, Guazzo R, Stellini E, Roman M, Pinton P, Sivolella S, Zavan B. Nanotechnology to drive stem cell commitment. Nanomedicine (Lond) 2013; 8:469-86. [PMID: 23477337 DOI: 10.2217/nnm.13.12] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Stem cells (SCs) are undifferentiated cells responsible for the growth, homeostasis and repair of many tissues. The maintenance and survival of SCs is strongly influenced by several stimuli from the local microenvironment. The majority of signaling molecules interact with SCs at the nanoscale level. Therefore, scaffolds with surface nanostructures have potential applications for SCs and in the field of regenerative medicine. Although some strategies have already reached the field of cell biology, strategies based on modification at nanoscale level are new players in the fields of SCs and tissue regeneration. The introduction of the possibility to perform such modifications to these fields is probably due to increasing improvements in nanomaterials for biomedical applications, as well as new insights into SC biology. The aim of the present review is to exhibit the most recent applications of nanostructured materials that drive the commitment of adult SCs for potential clinical applications.
Collapse
Affiliation(s)
- Eriberto Bressan
- Department of Neurosciences, University of Padova, Via Venezia 90, 35100 Padova, Italy
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
78
|
The seed and the soil: optimizing stem cells and their environment for tissue regeneration. Ann Plast Surg 2013; 70:235-9. [PMID: 23295233 DOI: 10.1097/sap.0b013e31826a18fb] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The potential for stem cells to serve as cellular building blocks for reconstruction of complex defects has prompted significant enthusiasm in the field of regenerative medicine. Clinical application, however, is still limited, as implantation of cells into hostile wound environments may greatly hinder their tissue forming capacity. To circumvent this obstacle, novel approaches have been developed to manipulate both the stem cell itself and its surrounding environmental niche. By understanding this paradigm of seed and soil optimization, innovative strategies may thus be developed to harness the true promise of stem cells for tissue regeneration.
Collapse
|
79
|
Electrospun adherent-antiadherent bilayered membranes based on cross-linked hyaluronic acid for advanced tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:4086-93. [PMID: 23910318 DOI: 10.1016/j.msec.2013.05.058] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 05/10/2013] [Accepted: 05/30/2013] [Indexed: 11/21/2022]
Abstract
A procedure to obtain electrospun mats of hyaluronic acid (HA) stable in aqueous media in one single step has been developed. It consists in combining an HA solution with a divinyl sulfone one as cross-linker in a three-way valve to immediately electroblow their mixture. Membranes obtained with this method, after sterilization and conditioning, are ready to use in cell culture without need of any additional post-treatment. HA nanofibers are deposited onto previously electrospun poly(l-lactic acid) (PLLA) mats in order to obtain stably joined bilayered membranes with an adherent face and the opposite face non-adherent, despite their different hydrophilicity and mechanical properties. These bilayered HA/PLLA membranes may be of use, for example, in applications seeking to transplant cells on a tissue surface and keep them protected from the environment: the PLLA nanofiber face is cell friendly and promotes cell attachment and spreading and can thus be used as a cell supply vehicle, while the HA face hinders cell adhesion and thus may prevent post-surgical adherences, a major issue in many surgeries.
Collapse
|
80
|
Vajgel A, Mardas N, Farias BC, Petrie A, Cimões R, Donos N. A systematic review on the critical size defect model. Clin Oral Implants Res 2013; 25:879-93. [DOI: 10.1111/clr.12194] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2013] [Indexed: 01/01/2023]
Affiliation(s)
- André Vajgel
- Oral and Maxillofacial Department; University of Pernambuco (FOP/UPE); Recife Brazil
- CAPES Foundation; Ministry of Education of Brazil; Brasília Brazil
- Periodontology Unit; UCL Eastman Dental Institute; London UK
| | - Nikos Mardas
- Periodontology Unit; UCL Eastman Dental Institute; London UK
| | - Bruna Carvalho Farias
- CAPES Foundation; Ministry of Education of Brazil; Brasília Brazil
- Periodontology Unit; UCL Eastman Dental Institute; London UK
- Postgraduate Department; Federal University of Pernambuco (UFPE); Recife Brazil
| | - Aviva Petrie
- Biostatistics Unit; UCL Eastman Dental Institute; London UK
| | - Renata Cimões
- Department of Prosthesis and Oral and Facial Surgery; Federal University of Pernambuco (UFPE); Recife Brazil
| | - Nikolaos Donos
- Periodontology Unit; UCL Eastman Dental Institute; London UK
| |
Collapse
|
81
|
Perán M, García MA, Lopez-Ruiz E, Jiménez G, Marchal JA. How Can Nanotechnology Help to Repair the Body? Advances in Cardiac, Skin, Bone, Cartilage and Nerve Tissue Regeneration. MATERIALS 2013; 6:1333-1359. [PMID: 28809213 PMCID: PMC5452318 DOI: 10.3390/ma6041333] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2013] [Revised: 03/20/2013] [Accepted: 03/20/2013] [Indexed: 12/15/2022]
Abstract
Nanotechnologists have become involved in regenerative medicine via creation of biomaterials and nanostructures with potential clinical implications. Their aim is to develop systems that can mimic, reinforce or even create in vivo tissue repair strategies. In fact, in the last decade, important advances in the field of tissue engineering, cell therapy and cell delivery have already been achieved. In this review, we will delve into the latest research advances and discuss whether cell and/or tissue repair devices are a possibility. Focusing on the application of nanotechnology in tissue engineering research, this review highlights recent advances in the application of nano-engineered scaffolds designed to replace or restore the followed tissues: (i) skin; (ii) cartilage; (iii) bone; (iv) nerve; and (v) cardiac.
Collapse
Affiliation(s)
- Macarena Perán
- Department of Health Sciences, University of Jaén, Campus Las Lagunillas, S/N, Jaén 23071, Spain.
| | - María Angel García
- Research Unit, University Hospital "Virgen de las Nieves", Avda. de las Fuerzas Armadas, 2, Granada 18014, Spain.
| | - Elena Lopez-Ruiz
- Department of Health Sciences, University of Jaén, Campus Las Lagunillas, S/N, Jaén 23071, Spain.
| | - Gema Jiménez
- Biopathology and Regenerative Medicine Institute (IBIMER), University of Granada, Avda. del Conocimiento S/N. CP Armilla, Granada 18100, Spain.
| | - Juan Antonio Marchal
- Biopathology and Regenerative Medicine Institute (IBIMER), University of Granada, Avda. del Conocimiento S/N. CP Armilla, Granada 18100, Spain.
- Department of Human Anatomy and Embryology, University of Granada, Avda. De Madrid, 11, Granada 18012, Spain.
| |
Collapse
|
82
|
Brock RS, Viterbo F, Capel G, Domingues MAC, Paschoalinotte EE, Labbé D. Galea and periosteum flap filled with bone fragments in rabbits. Acta Cir Bras 2013; 28:195-201. [PMID: 23503861 DOI: 10.1590/s0102-86502013000300007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Accepted: 01/16/2013] [Indexed: 01/14/2023] Open
Abstract
PURPOSE To study the bone viability of a vascularized galea and periosteum flap filled with bone fragments, as a substitute of the bone graft in facial reconstructive surgery. METHODS Forty rabbits were studied, and divided in two groups. One had a simple galea and periosteum flap done and the other had the same flap done and filled with bone fragments of the calvaria. The bone formation was evaluated by radiographies, macroscopic and microscopic analysis. RESULTS The bone neoformation in both groups with differences in bone morphology and structure especially at histological analysis. CONCLUSION This study demonstrated osseous formation in both groups of galea and periosteum flaps, with and without bone fragments.
Collapse
|
83
|
Farré-Guasch E, Prins HJ, Overman JR, ten Bruggenkate CM, Schulten EA, Helder MN, Klein-Nulend J. Human Maxillary Sinus Floor Elevation as a Model for Bone Regeneration Enabling the Application of One-Step Surgical Procedures. TISSUE ENGINEERING PART B-REVIEWS 2013; 19:69-82. [DOI: 10.1089/ten.teb.2012.0404] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Elisabet Farré-Guasch
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam, Research Institute MOVE, University of Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands
| | - Henk-Jan Prins
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam, Research Institute MOVE, University of Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands
- Department of Oral and Maxillofacial Surgery, Research Institute MOVE, VU University Medical Center/Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands
| | - Janice R. Overman
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam, Research Institute MOVE, University of Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands
- Department of Oral and Maxillofacial Surgery, Research Institute MOVE, VU University Medical Center/Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands
| | - Christiaan M. ten Bruggenkate
- Department of Oral and Maxillofacial Surgery, Research Institute MOVE, VU University Medical Center/Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands
| | - Engelbert A.J.M. Schulten
- Department of Oral and Maxillofacial Surgery, Research Institute MOVE, VU University Medical Center/Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands
| | - Marco N. Helder
- Department of Orthopaedics, Research Institute MOVE, VU University Medical Center, Amsterdam, The Netherlands
| | - Jenneke Klein-Nulend
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam, Research Institute MOVE, University of Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands
| |
Collapse
|
84
|
Khojasteh A, Behnia H, Hosseini FS, Dehghan MM, Abbasnia P, Abbas FM. The effect of PCL-TCP scaffold loaded with mesenchymal stem cells on vertical bone augmentation in dog mandible: a preliminary report. J Biomed Mater Res B Appl Biomater 2013; 101:848-54. [PMID: 23359464 DOI: 10.1002/jbm.b.32889] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Revised: 11/20/2012] [Accepted: 11/29/2012] [Indexed: 12/23/2022]
Abstract
Polycaprolactone-tricalcium phosphate (PCL-TCP), a new composite scaffold, has been shown to facilitate early revascularization and speed up bone regeneration process. The objective of this study was to evaluate the effect of PCL-TCP seeded with mesenchymal stem cells (MSCs) on healing of the vertical bone critical sized defect in dog's mandible. Bone marrow aspirate from dog humerous was cultured and the stemness of the cells was examined by differentiation staining methods and flow cytometric analysis. Third passage subculture cells (5 × 10⁵ cells) were loaded on 20 × 10 × 10 mm³ and incubated for 48 h. The presence of MSCs in the pores was evaluated by scanning electron microscope. Bilateral mandibular premolar teeth were extracted in four dogs and the buccal and lingual bone plates were reduced to make a vertical defect. Cell-loaded scaffolds were fixed in right side and left side received pure PCL-TCP scaffolds as a control side defects. Histomorphometric analysis after 8 weeks of the scaffold implantation showed higher amount of lamellar bone in the test side (48.63%) than control side (17.27%) (p < 0.05).The results suggest that PCL-TCP may be an appropriate scaffold for loading MSCs in bone regeneration.
Collapse
Affiliation(s)
- Arash Khojasteh
- Department of Oral and Maxillofacial Surgery, Dental Research Center, Research Institute of Dental Sciences, Dental Faculty, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | | | | | | | | | | |
Collapse
|
85
|
Rim NG, Shin CS, Shin H. Current approaches to electrospun nanofibers for tissue engineering. Biomed Mater 2013; 8:014102. [DOI: 10.1088/1748-6041/8/1/014102] [Citation(s) in RCA: 184] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
86
|
Holmes B, Castro NJ, Zhang LG, Zussman E. Electrospun Fibrous Scaffolds for Bone and Cartilage Tissue Generation: Recent Progress and Future Developments. TISSUE ENGINEERING PART B-REVIEWS 2012; 18:478-86. [DOI: 10.1089/ten.teb.2012.0096] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Benjamin Holmes
- School of Engineering and Applied Science, The George Washington University, Washington, District of Columbia
| | - Nathan J. Castro
- School of Engineering and Applied Science, The George Washington University, Washington, District of Columbia
| | - Lijie Grace Zhang
- Department of Mechanical and Aerospace Engineering, School of Engineering and Applied Science, Institute for Biomedical Engineering and Institute for Nanotechnology, The George Washington University, Washington, District of Columbia
| | - Eyal Zussman
- Faculty of Mechanical Engineering, Technion—Israel Institute of Technology, Technion City, Haifa, Israel
| |
Collapse
|
87
|
Cao L, Duan PG, Wang HR, Li XL, Yuan FL, Fan ZY, Li SM, Dong J. Degradation and osteogenic potential of a novel poly(lactic acid)/nano-sized β-tricalcium phosphate scaffold. Int J Nanomedicine 2012; 7:5881-8. [PMID: 23226019 PMCID: PMC3513910 DOI: 10.2147/ijn.s38127] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The purpose of this study was to investigate the influence of nano-sized β-tricalcium phosphate (β-TCP) on the biological performance of poly (lactic acid) (PLA) composite scaffolds by using in vitro degradation and an in vivo model of heterotopic bone formation. Nano-sized β-TCP (nβ-TCP) was prepared with a wet grinding method from micro-sized β-TCP (mβ-TCP), and composite scaffolds containing 0, 10, 30, or 50 wt% nβ-TCP or 30 wt% mβ-TCP were generated using a freeze-drying method. Degradation was assessed by monitoring changes in microstructure, pH, weight, and compressive strength over a 26-week period of hydrolysis. Composite scaffolds were processed into blocks, and implanted into muscular pockets of rabbits after loading with recombinant human bone morphogenetic protein-2 (rhBMP-2). New bone formation was evaluated based on histological and immunohistochemical analysis 2, 4, and 8 weeks after implantation. The in vitro results indicated that the buffering effect of nβ-TCP was stronger than mβ-TCP, which was positively correlated with the content of nβ-TCP. The in vivo findings demonstrated that nβ-TCP enhanced the osteoconductivity of the scaffolds. Although composite scaffolds containing 30% nβ-TCP exhibited similar osteoconductivity to 50% nβ-TCP, they had better mechanical properties than the 50% nβ-TCP scaffolds. This study supports the potential application of a composite scaffold containing 30% nβ-TCP as a promising scaffold for bone regeneration.
Collapse
Affiliation(s)
- Lu Cao
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | | | | | | | | | | | | | | |
Collapse
|
88
|
Feng YF, Wang L, Li X, Ma ZS, Zhang Y, Zhang ZY, Lei W. Influence of architecture of β-tricalcium phosphate scaffolds on biological performance in repairing segmental bone defects. PLoS One 2012. [PMID: 23185494 PMCID: PMC3503864 DOI: 10.1371/journal.pone.0049955] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Although three-dimensional (3D) β-tricalcium phosphate (β-TCP) scaffolds serve as promising bone graft substitutes for the segmental bone defect treatment, no consensus has been achieved regarding their optimal 3D architecture. METHODS In this study, we has systematically compared four types of β-TCP bone graft substitutes with different 3D architectures, including two types of porous scaffolds, one type of tubular scaffolds and one type of solid scaffolds, for their efficacy in treating segmental bone defect in a rabbit model. RESULTS Our study has demonstrated that when compared to the traditional porous and solid scaffolds, tubular scaffolds promoted significantly higher amount of new bone formation in the defect regions as shown by X-ray, micro CT examinations and histological analysis, restored much greater mechanical properties of the damaged bone evidenced by the biomechanical testing, and eventually achieved the complete union of segmental defect. Moreover, the implantation of tubular scaffolds enhanced the neo-vascularization at the defect region with higher bone metabolic activities than others, as indicated by the bone scintigraphy assay. CONCLUSIONS This study has further the current knowledge regarding the profound influence of overall 3D architecture of β-TCP scaffolds on their in vivo defect healing performance and illuminated the promising potential use of tubular scaffolds as effective bone graft substitute in treating large segmental bone defects.
Collapse
Affiliation(s)
- Ya-Fei Feng
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi’an, China
| | - Lin Wang
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi’an, China
| | - Xiang Li
- School of Mechanical Engineering, Shanghai Jiao Tong University, State Key Laboratory of Mechanical System and Vibration, Shanghai, China
| | - Zhen-Sheng Ma
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi’an, China
| | - Yang Zhang
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi’an, China
| | - Zhi-Yong Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People’s Hospital, Shanghai Key Laboratory of Tissue Engineering, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- National Tissue Engineering Center of China, Shanghai, China
- * E-mail: (WL); (ZYZ)
| | - Wei Lei
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi’an, China
- * E-mail: (WL); (ZYZ)
| |
Collapse
|
89
|
Kim BS, Kim JS, Chung YS, Sin YW, Ryu KH, Lee J, You HK. Growth and osteogenic differentiation of alveolar human bone marrow-derived mesenchymal stem cells on chitosan/hydroxyapatite composite fabric. J Biomed Mater Res A 2012; 101:1550-8. [PMID: 23135904 DOI: 10.1002/jbm.a.34456] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Revised: 08/30/2012] [Accepted: 09/13/2012] [Indexed: 11/05/2022]
Abstract
Scaffolds can be used for tissue engineering because they can serve as templates for cell adhesion and proliferation for tissue repair. In this study, chitosan/hydroxyapatite (CS/HAp) composites were prepared by coprecipitation synthesis. Then, CS and CS/HAp fabrics were prepared by wet spinning. CS fibers with a diameter of 15 ± 1.3 μm and CS/HAp fibers with a diameter of 22 ± 1.2 μm were successfully produced; incorporation of HAp into the CS/HAp fibers was confirmed by X-ray diffraction analysis. Biological in vitro evaluations showed that human mesenchymal stem cells (hMSCs) cultured on CS/HAp fabric showed increased proliferation compared to those cultured on pure CS fabric, which was observed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, DNA content assay, and [(3) H] thymidine incorporation assay. Neither the CS nor CS/HAp scaffold exhibited any cytotoxicity to hMSCs, as shown by viability staining and cytotoxicity fluorescence image assays. After 10 days of culturing, the attachment of cells onto the scaffold was observed by scanning electron microscopy. Furthermore, under osteogenic differentiation conditions, alkaline phosphatase (ALP) activity and calcium accumulation was higher in cells cultured on the CS/HAp scaffold than in cells cultured on the CS scaffold. The mRNA expression of osteoblast markers, including ALP, osteocalcin, Co1Ia1, and runt-related transcription factor 2, was higher in cells cultured on CS/HAp than in cells cultured on the CS fabric. The results of this study indicate that the CS/HAp composite fabric may serve as a good scaffold for bone tissue engineering applications.
Collapse
Affiliation(s)
- Beom-Su Kim
- Department of Periodontology, School of Dentistry, Wonkwang University, Iksan, Jeonbuk 570-749, Korea
| | | | | | | | | | | | | |
Collapse
|
90
|
Nguyen TH, Lee BT. In vitroandin vivostudies of rhBMP2-coated PS/PCL fibrous scaffolds for bone regeneration. J Biomed Mater Res A 2012; 101:797-808. [DOI: 10.1002/jbm.a.34382] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 07/17/2012] [Accepted: 07/23/2012] [Indexed: 12/31/2022]
|
91
|
Schofer MD, Tünnermann L, Kaiser H, Roessler PP, Theisen C, Heverhagen JT, Hering J, Voelker M, Agarwal S, Efe T, Fuchs-Winkelmann S, Paletta JRJ. Functionalisation of PLLA nanofiber scaffolds using a possible cooperative effect between collagen type I and BMP-2: impact on colonization and bone formation in vivo. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:2227-33. [PMID: 22718044 PMCID: PMC3431465 DOI: 10.1007/s10856-012-4697-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2011] [Accepted: 05/27/2012] [Indexed: 06/01/2023]
Abstract
The reconstruction of large bone defects after injury or tumor resection often requires the use of bone substitution. Artificial scaffolds based on synthetic biomaterials can overcome disadvantages of autologous bone grafts, like limited availability and donor side morbidity. Among them, scaffolds based on nanofibers offer great advantages. They mimic the extracellular matrix, can be used as a carrier for growth factors and allow the differentiation of human mesenchymal stem cells. Differentiation is triggered by a series of signaling processes, including integrin and bone morphogenetic protein (BMP), which act in a cooperative manner. The aim of this study was to analyze whether these processes can be remodeled in artificial poly-(l)-lactide acid (PLLA) based nanofiber scaffolds in vivo. Electrospun matrices composed of PLLA-collagen type I or BMP-2 incorporated PLLA-collagen type I were implanted in calvarial critical size defects in rats. Cranial CT-scans were taken 4, 8 and 12 weeks after implantation. Specimens obtained after euthanasia were processed for histology and immunostainings on osteocalcin, BMP-2 and Smad5. After implantation the scaffolds were inhomogeneously colonized and cells were only present in wrinkle- or channel-like structures. Ossification was detected only in focal areas of the scaffold. This was independent of whether BMP-2 was incorporated in the scaffold. However, cells that migrated into the scaffold showed an increased ratio of osteocalcin and Smad5 positive cells compared to empty defects. Furthermore, in case of BMP-2 incorporated PLLA-collagen type I scaffolds, 4 weeks after implantation approximately 40 % of the cells stained positive for BMP-2 indicating an autocrine process of the ingrown cells. These findings indicate that a cooperative effect between BMP-2 and collagen type I can be transferred to PLLA nanofibers and furthermore, that this effect is active in vivo. However, this had no effect on bone formation. The reason for this seems to be an unbalanced colonization of the scaffolds with cells, due to insufficient pore size.
Collapse
Affiliation(s)
- Markus D. Schofer
- Department of Orthopedics and Rheumatology, University Hospital Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - Lisa Tünnermann
- Department of Orthopedics and Rheumatology, University Hospital Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - Hendric Kaiser
- Department of Orthopedics and Rheumatology, University Hospital Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - Philip P. Roessler
- Department of Orthopedics and Rheumatology, University Hospital Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - Christina Theisen
- Department of Orthopedics and Rheumatology, University Hospital Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - Johannes T. Heverhagen
- Department of Radiology, University Hospital Marburg, Baldingerstraße, 35033 Marburg, Germany
| | - Jacqueline Hering
- Department of Radiology, University Hospital Marburg, Baldingerstraße, 35033 Marburg, Germany
| | - Maximilian Voelker
- Department of Radiology, University Hospital Marburg, Baldingerstraße, 35033 Marburg, Germany
| | - Seema Agarwal
- Department of Macromolecular Chemistry, Philipps-University Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
| | - Turgay Efe
- Department of Orthopedics and Rheumatology, University Hospital Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - Susanne Fuchs-Winkelmann
- Department of Orthopedics and Rheumatology, University Hospital Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - Jürgen R. J. Paletta
- Department of Orthopedics and Rheumatology, Philipps-University, Baldingerstraße, 35043 Marburg, Germany
| |
Collapse
|
92
|
Bae SE, Bhang SH, Kim BS, Park K. Self-assembled extracellular macromolecular matrices and their different osteogenic potential with preosteoblasts and rat bone marrow mesenchymal stromal cells. Biomacromolecules 2012; 13:2811-20. [PMID: 22813212 DOI: 10.1021/bm300791h] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Extracellular environment is a physical support that is critical to cell adhesion, migration, and differentiation. In this work, cell-derived matrices (CDMs) were obtained by separately culturing fibroblasts, preosteoblasts, and chondrocytes. The cells were grown on a coverslip and subjected to decellularization using detergents and enzymes. The resulting matrices were named fibroblast-derived matrix (FDM), preosteoblast-derived matrix (PDM), and chondrocyte-derived matrix (CHDM). We hypothesize that the unique compositional and structural feature of each CDM provides cells with a distinct microenvironment capable of functioning as a different signaling cue in the regulation of preosteoblast and rat bone marrow mesenchymal stromal cell (BMSC) osteogenic differentiation. SEM images show that each cell type creates its unique surface texture in a fibrillar structure. Three major macromolecules, fibronectin, type I collagen, and laminin, were clearly identified using both immunofluorescence and Western blot, in which FDM exhibited a much stronger signal of each ECM component than that of PDM or CHDM. For early cell morphology, BMSCs on the CDMs were highly elongated in a spindle-like shape. Both preosteoblasts and BMSCs proliferated well on CDMs comparable to the control. Once preosteoblasts were cultured for 2 weeks, their osteogenic activity was significantly different depending on the type of CDM. Using Alizarin red and von Kossa staining, we found that the cells on the FDM were much more osteogenic than the other groups. Furthermore, FDM was the most effective in upregulating the osteogenic markers, such as alkaline phosphatase (ALP), osteopontin, osteocalcin, and type I collagen. In particular, we observed a 2.5-fold increase in ALP activity with FDM compared to that of control and CHDM. In stark contrast, CHDM was very poor in stimulating osteogenic differentiation of preosteoblasts. Interestingly, these results were reproducible with the use of BMSCs, which are much more heterogeneous in cell populations than preosteoblasts. CHDM was still very weak in triggering the osteogenesis of BMSCs, whereas both FDM and PDM were equally competitive. This study demonstrates that a combination of factors (surface texture and composition) shape a unique cellular microenvironment, which serves as a physical cue toward the osteogenic differentiation of preosteoblasts and BMSCs.
Collapse
Affiliation(s)
- Soon Eon Bae
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea
| | | | | | | |
Collapse
|
93
|
He Q, Chen H, Huang L, Dong J, Guo D, Mao M, Kong L, Li Y, Wu Z, Lei W. Porous surface modified bioactive bone cement for enhanced bone bonding. PLoS One 2012; 7:e42525. [PMID: 22905143 PMCID: PMC3414445 DOI: 10.1371/journal.pone.0042525] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2012] [Accepted: 07/09/2012] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Polymethylmethacrylate bone cement cannot provide an adhesive chemical bonding to form a stable cement-bone interface. Bioactive bone cements show bone bonding ability, but their clinical application is limited because bone resorption is observed after implantation. Porous polymethylmethacrylate can be achieved with the addition of carboxymethylcellulose, alginate and gelatin microparticles to promote bone ingrowth, but the mechanical properties are too low to be used in orthopedic applications. Bone ingrowth into cement could decrease the possibility of bone resorption and promote the formation of a stable interface. However, scarce literature is reported on bioactive bone cements that allow bone ingrowth. In this paper, we reported a porous surface modified bioactive bone cement with desired mechanical properties, which could allow for bone ingrowth. MATERIALS AND METHODS The porous surface modified bioactive bone cement was evaluated to determine its handling characteristics, mechanical properties and behavior in a simulated body fluid. The in vitro cellular responses of the samples were also investigated in terms of cell attachment, proliferation, and osteoblastic differentiation. Furthermore, bone ingrowth was examined in a rabbit femoral condyle defect model by using micro-CT imaging and histological analysis. The strength of the implant-bone interface was also investigated by push-out tests. RESULTS The modified bone cement with a low content of bioactive fillers resulted in proper handling characteristics and adequate mechanical properties, but slightly affected its bioactivity. Moreover, the degree of attachment, proliferation and osteogenic differentiation of preosteoblast cells was also increased. The results of the push-out test revealed that higher interfacial bonding strength was achieved with the modified bone cement because of the formation of the apatite layer and the osseointegration after implantation in the bony defect. CONCLUSIONS Our findings suggested a new bioactive bone cement for prosthetic fixation in total joint replacement.
Collapse
Affiliation(s)
- Qiang He
- Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Huiling Chen
- Department of Health Service, School of Public Health and Military Preventive, Fourth Military Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Li Huang
- Department of General Dentistry, School of Stomatology, Fourth Military Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Jingjing Dong
- Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Dagang Guo
- State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Mengmeng Mao
- State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Liang Kong
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Yang Li
- Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Zixiang Wu
- Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Wei Lei
- Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, People’s Republic of China
| |
Collapse
|
94
|
Park GR, Lee JG, Chun HJ, Han DK, Park K. Characterization of naturally derived macromolecular matrix and its osteogenic activity with preosteoblasts. Macromol Res 2012. [DOI: 10.1007/s13233-012-0119-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
95
|
Tsai SW, Liou HM, Lin CJ, Kuo KL, Hung YS, Weng RC, Hsu FY. MG63 osteoblast-like cells exhibit different behavior when grown on electrospun collagen matrix versus electrospun gelatin matrix. PLoS One 2012; 7:e31200. [PMID: 22319618 PMCID: PMC3271086 DOI: 10.1371/journal.pone.0031200] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Accepted: 01/04/2012] [Indexed: 11/18/2022] Open
Abstract
Electrospinning is a simple and efficient method of fabricating a non-woven polymeric nanofiber matrix. However, using fluorinated alcohols as a solvent for the electrospinning of proteins often results in protein denaturation. TEM and circular dichroism analysis indicated a massive loss of triple-helical collagen from an electrospun collagen (EC) matrix, and the random coils were similar to those found in gelatin. Nevertheless, from mechanical testing we found the Young's modulus and ultimate tensile stresses of EC matrices were significantly higher than electrospun gelatin (EG) matrices because matrix stiffness can affect many cell behaviors such as cell adhesion, proliferation and differentiation. We hypothesize that the difference of matrix stiffness between EC and EG will affect intracellular signaling through the mechano-transducers Rho kinase (ROCK) and focal adhesion kinase (FAK) and subsequently regulates the osteogenic phenotype of MG63 osteoblast-like cells. From the results, we found there was no significant difference between the EC and EG matrices with respect to either cell attachment or proliferation rate. However, the gene expression levels of OPN, type I collagen, ALP, and OCN were significantly higher in MG63 osteoblast-like cells grown on the EC than in those grown on the EG. In addition, the phosphorylation levels of Y397-FAK, ERK1/2, BSP, and OPN proteins, as well as ALP activity, were also higher on the EC than on the EG. We further inhibited ROCK activation with Y27632 during differentiation to investigate its effects on matrix-mediated osteogenic differentiation. Results showed the extent of mineralization was decreased with inhibition after induction. Moreover, there is no significant difference between EC and EG. From the results of the protein levels of phosphorylated Y397-FAK, ERK1/2, BSP and OPN, ALP activity and mineral deposition, we speculate that the mechanism that influences the osteogenic differentiation of MG63 osteoblast-like cells on EC and EG is matrix stiffness and via ROCK-FAK-ERK1/2.
Collapse
Affiliation(s)
- Shiao-Wen Tsai
- Institute of Biochemical and Biomedical Engineering, Chang-Gung University, Tao-Yuan, Taiwan
| | - Hau-Min Liou
- Institute of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan
| | - Cheng-Jie Lin
- Institute of Biochemical and Biomedical Engineering, Chang-Gung University, Tao-Yuan, Taiwan
| | - Ko-Liang Kuo
- Institute of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan
| | - Yi-Sheng Hung
- Institute of Biochemical and Biomedical Engineering, Chang-Gung University, Tao-Yuan, Taiwan
- Institute of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan
| | - Ru-Chun Weng
- Institute of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan
| | - Fu-Yin Hsu
- Institute of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan
- Department of Life Sciences, National Taiwan Ocean University, Keelung, Taiwan,
| |
Collapse
|
96
|
Abstract
There remains a substantial shortfall in the treatment of severe skeletal injuries. The current gold standard of autologous bone grafting from the same patient has many undesirable side effects associated such as donor site morbidity. Tissue engineering seeks to offer a solution to this problem. The primary requirements for tissue-engineered scaffolds have already been well established, and many materials, such as polyesters, present themselves as potential candidates for bone defects; they have comparable structural features, but they often lack the required osteoconductivity to promote adequate bone regeneration. By combining these materials with biological growth factors, which promote the infiltration of cells into the scaffold as well as the differentiation into the specific cell and tissue type, it is possible to increase the formation of new bone. However due to the cost and potential complications associated with growth factors, controlling the rate of release is an important design consideration when developing new bone tissue engineering strategies. This paper will cover recent research in the area of encapsulation and release of growth factors within a variety of different polymeric scaffolds.
Collapse
|