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Sagadevan S, Schirhagl R, Rahman MZ, Bin Ismail MF, Lett JA, Fatimah I, Mohd Kaus NH, Oh WC. Recent advancements in polymer matrix nanocomposites for bone tissue engineering applications. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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2
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Barik A, Kirtania MD. In-Vitro and In-Vivo Tracking of Cell-Biomaterial Interaction to Monitor the Process of Bone Regeneration. Regen Med 2023. [DOI: 10.1007/978-981-19-6008-6_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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3
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Hasanzadeh R, Azdast T, Mojaver M, Darvishi MM, Park CB. Cost-effective and reproducible technologies for fabrication of tissue engineered scaffolds: The state-of-the-art and future perspectives. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Kirankumar S, Gurusamy N, Rajasingh S, Sigamani V, Vasanthan J, Perales SG, Rajasingh J. Modern approaches on stem cells and scaffolding technology for osteogenic differentiation and regeneration. Exp Biol Med (Maywood) 2021; 247:433-445. [PMID: 34648374 DOI: 10.1177/15353702211052927] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The process of bone repair has always been a natural mystery. Although bones do repair themselves, supplemental treatment is required for the initiation of the self-regeneration process. Predominantly, surgical procedures are employed for bone regeneration. Recently, cell-based therapy for bone regeneration has proven to be more effective than traditional methods, as it eliminates the immune risk and painful surgeries. In clinical trials, various stem cells, especially mesenchymal stem cells, have shown to be more efficient for the treatment of several bone-related diseases, such as non-union fracture, osteogenesis imperfecta, osteosarcoma, and osteoporosis. Furthermore, the stem cells grown in a suitable three-dimensional scaffold support were found to be more efficient for osteogenesis. It has been shown that the three-dimensional bioscaffolds support and simulate an in vivo environment, which helps in differentiation of stem cells into bone cells. Bone regeneration in patients with bone disorders can be improved through modification of stem cells with several osteogenic factors or using stem cells as carriers for osteogenic factors. In this review, we focused on the various types of stem cells and scaffolds that are being used for bone regeneration. In addition, the molecular mechanisms of various transcription factors, signaling pathways that support bone regeneration and the senescence of the stem cells, which limits bone regeneration, have been discussed.
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Affiliation(s)
- Shivaani Kirankumar
- Department of Bioscience Research, University of Tennessee Health Science Center, Memphis, TN 38163, USA.,Department of Genetic Engineering, 93104SRM Institute of Science and Technology, Chennai 603203, India
| | - Narasimman Gurusamy
- Department of Bioscience Research, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Sheeja Rajasingh
- Department of Bioscience Research, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Vinoth Sigamani
- Department of Bioscience Research, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Jayavardini Vasanthan
- Department of Bioscience Research, University of Tennessee Health Science Center, Memphis, TN 38163, USA.,Department of Genetic Engineering, 93104SRM Institute of Science and Technology, Chennai 603203, India
| | - Selene G Perales
- Department of Bioscience Research, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Johnson Rajasingh
- Department of Bioscience Research, University of Tennessee Health Science Center, Memphis, TN 38163, USA.,Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA.,Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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Janagama D, Hui SK. 3-D Cell Culture Systems in Bone Marrow Tissue and Organoid Engineering, and BM Phantoms as In Vitro Models of Hematological Cancer Therapeutics-A Review. MATERIALS 2020; 13:ma13245609. [PMID: 33316977 PMCID: PMC7763362 DOI: 10.3390/ma13245609] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 10/24/2020] [Accepted: 10/29/2020] [Indexed: 12/15/2022]
Abstract
We review the state-of-the-art in bone and marrow tissue engineering (BMTE) and hematological cancer tissue engineering (HCTE) in light of the recent interest in bone marrow environment and pathophysiology of hematological cancers. This review focuses on engineered BM tissue and organoids as in vitro models of hematological cancer therapeutics, along with identification of BM components and their integration as synthetically engineered BM mimetic scaffolds. In addition, the review details interaction dynamics of various BM and hematologic cancer (HC) cell types in co-culture systems of engineered BM tissues/phantoms as well as their relation to drug resistance and cytotoxicity. Interaction between hematological cancer cells and their niche, and the difference with respect to the healthy niche microenvironment narrated. Future perspectives of BMTE for in vitro disease models, BM regeneration and large scale ex vivo expansion of hematopoietic and mesenchymal stem cells for transplantation and therapy are explained. We conclude by overviewing the clinical application of biomaterials in BM and HC pathophysiology and its challenges and opportunities.
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Zha F, Chen W, Hao L, Wu C, Lu M, Zhang L, Yu D. Electrospun cellulose-based conductive polymer nanofibrous mats: composite scaffolds and their influence on cell behavior with electrical stimulation for nerve tissue engineering. SOFT MATTER 2020; 16:6591-6598. [PMID: 32597437 DOI: 10.1039/d0sm00593b] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The fabrication of scaffolds with suitable chemical, physical, and electrical properties is critical for nerve cell adhesion and proliferation. Recently, electrical stimulation on conductive polymers has been applied to construct functional nerve cell scaffolds. Herein, we prepared natural polymer (cellulose)/conductive polymer nanofibrous mats, i.e., electrospun cellulose (EC)/poly N-vinylpyrrole (PNVPY) and EC/poly(3-hexylthiophene) (P3HT) through an efficient in situ polymerization method. The surface immobilization was characterized by optical microscopy (OM), scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, hydrophilicity, porosity, and cyclic voltammetry. The OM and SEM images showed that PNVPY formed polymer coatings and aggregated nanoparticles on the EC nanofibers, while P3HT only produced polymer coatings. Compared with pure EC mats, both the composite mats had increased thickness, higher porosity, and higher conductivity. Also, an increase in hydrophilicity was found for EC/P3HT. In vivo cytocompatibility of the undifferentiated PC12 cells showed that the EC/PNVPY and EC/P3HT scaffolds exhibited favorable cell activity, adhesion, and proliferation. Furthermore, the results of electrical stimulation experiments indicated that the EC/P3HT mats could effectively promote the proliferation of the PC12 cells more than the EC and EC/PNVPY mats. The findings suggest a positive outcome regarding the conductive polymer-modified EC/PNVPY and EC/P3HT nanofibrous mats in neural tissue engineering.
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Affiliation(s)
- Fangwen Zha
- School of Chemistry, State Key Laboratory of Electrical Insulation and Power Equipments, MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China.
| | - Wei Chen
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P. R. China
| | - Lu Hao
- School of Chemistry, State Key Laboratory of Electrical Insulation and Power Equipments, MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China.
| | - Chunsheng Wu
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P. R. China
| | - Meng Lu
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P. R. China
| | - Lifeng Zhang
- Department of Nanoengineering, Joint School of Nanoscience and Nanoengineering, NC A&T State University, Greensboro, NC, USA
| | - Demei Yu
- School of Chemistry, State Key Laboratory of Electrical Insulation and Power Equipments, MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China.
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Elaboration and Biocompatibility of an Eggshell-Derived Hydroxyapatite Material Modified with Si/PLGA for Bone Regeneration in Dentistry. Int J Dent 2019; 2019:5949232. [PMID: 31885588 PMCID: PMC6915137 DOI: 10.1155/2019/5949232] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 10/07/2019] [Accepted: 11/04/2019] [Indexed: 11/18/2022] Open
Abstract
Hydroxyapatite (HAp) is the most commonly used biomaterial in modern bone regeneration studies because of its chemical similarity to bone, biocompatibility with different polymers, osteoconductivity, low cost, and lack of immune response. However, to overcome the disadvantages of HAp, which include fragility and low mechanical strength, current studies typically focus on property modification through the addition of other materials. Objective. To develop and evaluate the biocompatibility of a HAp material extracted from eggshells and modified with silicon (Si) and poly(lactic-co-glycolic) acid (PLGA). Materials and Methods. An in vitro experimental study in which a HAp material prepared from eggshells was synthesized by wet chemical and conventional chemical precipitation. Subsequently, this material was reinforced with Si/PLGA using the freezing/lyophilization method, and then osteoblast cells were seeded on the experimental material (HAp/Si/PLGA). To analyse the biocompatibility of this composite material, scanning electron microscopy (SEM) and fluorescence confocal microscopy (FCM) techniques were used. PLGA, bovine bone/PLGA (BB/PLGA), and HAp/PLGA were used as controls. Results. A cellular viability of 96% was observed for the experimental HAp/Si/PLGA material as well as for the PLGA. The viability for the BB/PLGA material was 90%, and the viability for the HAp/PLGA was 86%. Cell adhesion was observed on the exterior surface of all materials. However, a continuous monolayer and the presence of filopodia were observed over both external and internal surface of the experimental materials. Conclusions. The HAp/Si/PLGA material is highly biocompatible with osteoblastic cells and can be considered promising for the construction of three-dimensional scaffolds for bone regeneration in dentistry.
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Fabrication of bacterial cellulose-collagen composite scaffolds and their osteogenic effect on human mesenchymal stem cells. Carbohydr Polym 2019; 219:210-218. [DOI: 10.1016/j.carbpol.2019.05.039] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 04/01/2019] [Accepted: 05/10/2019] [Indexed: 11/24/2022]
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Anandan D, Madhumathi G, Nambiraj NA, Jaiswal AK. Gum based 3D composite scaffolds for bone tissue engineering applications. Carbohydr Polym 2019; 214:62-70. [DOI: 10.1016/j.carbpol.2019.03.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 03/04/2019] [Accepted: 03/06/2019] [Indexed: 11/15/2022]
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Kim S, Jang JE, Lee JH, Khang G. Composite scaffold of micronized porcine cartilage/poly(lactic‑co‑glycolic acid) enhances anti-inflammatory effect. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 88:46-52. [DOI: 10.1016/j.msec.2018.02.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 10/16/2017] [Accepted: 02/22/2018] [Indexed: 10/18/2022]
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Palaveniene A, Harkavenko V, Kharchenko V, Daugela P, Pranskunas M, Juodzbalys G, Babenko N, Liesiene J. Cuttlebone as a Marine-Derived Material for Preparing Bone Grafts. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2018; 20:363-374. [PMID: 29616431 DOI: 10.1007/s10126-018-9816-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 12/04/2017] [Indexed: 06/08/2023]
Abstract
The use of synthetic materials for biomedical applications still presents issues owing to the potential for unfavourable safety characteristics. Currently, there is increasing interest in using natural, marine-derived raw materials for bone tissue engineering. In our study, the endoskeleton of the mollusc Sepia, i.e. cuttlebone (CB), was used with regenerated cellulose (RC) to prepare three-dimensional composite bone grafts. CB microparticles were mechanically immobilised within a cellulose gel, resulting in a macroporous structure upon lyophilisation. The interconnected porous structure of the regenerated cellulose/cuttlebone (RC/CB) composite was evaluated by micro-computed tomography. The porosity of the composite was 80%, and the pore size predominantly ranged from 200 to 500 μm. The addition of CB microparticles increased the specific scaffold surface by almost threefold and was found to be approximately 40 mm-1. The modulus of elasticity and compressive strength of the RC/CB composite were 4.0 ± 0.6 and 22.0 ± 0.9 MPa, respectively. The biocompatibility of the prepared RC/CB composite with rat hepatocytes and extensor digitorum longus muscle tissue was evaluated. The obtained data demonstrated that both the composite and cellulose matrix samples were non-cytotoxic and had no damaging effects. These results indicate that this RC/CB composite is a novel material suitable for bone tissue-engineering applications.
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Affiliation(s)
- Alisa Palaveniene
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu str. 19, 50254, Kaunas, Lithuania
| | - Volodymyr Harkavenko
- Department of Ontogenetic Physiology, V. N. Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv, 61022, Ukraine
| | - Vitalina Kharchenko
- Department of Ontogenetic Physiology, V. N. Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv, 61022, Ukraine
| | - Povilas Daugela
- Department of Oral and Maxillofacial Surgery, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009, Kaunas, Lithuania
| | - Mindaugas Pranskunas
- Department of Oral and Maxillofacial Surgery, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009, Kaunas, Lithuania
| | - Gintaras Juodzbalys
- Department of Oral and Maxillofacial Surgery, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009, Kaunas, Lithuania
| | - Nataliya Babenko
- Department of Ontogenetic Physiology, V. N. Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv, 61022, Ukraine
| | - Jolanta Liesiene
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu str. 19, 50254, Kaunas, Lithuania.
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Song M, Zhou Y, Liu Y. VEGF heparinized-decellularized adipose tissue scaffolds enhance tissue engineering vascularization in vitro. RSC Adv 2018; 8:33614-33624. [PMID: 35548831 PMCID: PMC9086570 DOI: 10.1039/c7ra13282d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 05/28/2018] [Indexed: 11/21/2022] Open
Abstract
Scaffolds based on decellularized adipose tissue (DAT) are gaining popularity in the adipose tissue engineering field due to their high biocompatibility and vascularizing properties. Previous studies involving decellularized adipose tissue (DAT) scaffolds have not fully demonstrated their ability to induce in vitro vascularization of engineered tissue. With the aim of developing a more effective adipose tissue engineering vascularization technique based on DAT, we investigated the vascularizing potential of a vascular endothelial growth factor (VEGF) delivery system utilizing a heparinized DAT (Hep-DAT) scaffold in vitro. To generate this system, heparins were cross-linked to DATs with 1-ethyl-3-[3-dimethylaminopropyl]carbodiimide and N-hydroxysuccinimide. Encapsulated Hep-DATs were able to control the release of a significantly higher amount of VEGF in vitro than non-heparinized DATs. Human bone marrow stromal cells (hBMSCs), when seeded on these VEGF–Hep-DATs, differentiated into endothelial cells which expressed vascular endothelial markers CD34 and VWF, thus resulting in accelerated vascularization of transplanted tissue as compared to the control DAT-only scaffold. In conclusion, these studies demonstrate that VEGF–Hep-DATs promoted greater tissue vascularization as compared to the DAT control scaffold and that VEGF–Hep-DATs are an effective and biocompatible angiogenesis system. Scaffolds based on decellularized adipose tissue (DAT) are gaining popularity in the adipose tissue engineering field due to their high biocompatibility and vascularizing properties.![]()
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Affiliation(s)
- Mei Song
- Burns and Plastic Surgery Center
- Lanzhou General Hospital of the People's Liberation Army
- Lanzhou
- 730050 P. R. China
| | - Yu Zhou
- Beijing Lu Daopei Institute of Hematology
- 100176 P. R. China
| | - Yi Liu
- Burns and Plastic Surgery Center
- Lanzhou General Hospital of the People's Liberation Army
- Lanzhou
- 730050 P. R. China
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Gentamicin Released from Porous Scaffolds Fabricated by Stereolithography. JOURNAL OF HEALTHCARE ENGINEERING 2017; 2017:9547896. [PMID: 29065670 PMCID: PMC5585561 DOI: 10.1155/2017/9547896] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 07/31/2017] [Indexed: 12/02/2022]
Abstract
Porous oligolactide-hydroxyapatite composite scaffolds were obtained by stereolithographic fabrication. Gentamicin was then coated on the scaffolds afterwards, to achieve antimicrobial delivery ability to treat bone infection. The scaffolds examined by stereomicroscope, SEM, and μCT-scan showed a well-ordered pore structure with uniform pore distribution and pore interconnectivity. The physical and mechanical properties of the scaffolds were investigated. It was shown that not only porosity but also scaffold structure played a critical role in governing the strength of scaffolds. A good scaffold design could create proper orientation of pores in a way to strengthen the scaffold structure. The drug delivery profile of the porous scaffolds was also analyzed using microbiological assay. The release rates of gentamicin from the scaffolds showed prolonged drug release at the levels higher than the minimum inhibitory concentrations for S. aureus and E. coli over a 2-week period. It indicated a potential of the scaffolds to serve as local antibiotic delivery to prevent bacterial infection.
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Modification of electrospun poly(L-lactic acid)/polyethylenimine nanofibrous scaffolds for biomedical application. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1320661] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Bhowmick A, Pramanik N, Mitra T, Gnanamani A, Das M, Kundu PP. Fabrication of porous magnetic nanocomposites for bone tissue engineering. NEW J CHEM 2017. [DOI: 10.1039/c6nj03358j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Porous superparamagnetic chitosan/polyethylene glycol/hydroxyapatite–Fe3O4 nanocomposites were developed for bone tissue engineering.
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Affiliation(s)
- Arundhati Bhowmick
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata-700009
- India
| | - Nilkamal Pramanik
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata-700009
- India
| | - Tapas Mitra
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata-700009
- India
| | - Arumugam Gnanamani
- Microbiology Division
- CSIR-Central Leather Research Institute
- Chennai-600020
- India
| | - Manas Das
- Department of Chemical Engineering
- University of Calcutta
- Kolkata-700009
- India
| | - Patit Paban Kundu
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata-700009
- India
- Department of Chemical Engineering
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Cecen B, Kozaci LD, Yuksel M, Ustun O, Ergur BU, Havitcioglu H. Biocompatibility and biomechanical characteristics of loofah based scaffolds combined with hydroxyapatite, cellulose, poly- l -lactic acid with chondrocyte-like cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:437-46. [DOI: 10.1016/j.msec.2016.07.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 06/28/2016] [Accepted: 07/04/2016] [Indexed: 10/21/2022]
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Kim W, Lee H, Kim Y, Choi CH, Lee D, Hwang H, Kim G. Versatile design of hydrogel-based scaffolds with manipulated pore structure for hard-tissue regeneration. Biomed Mater 2016; 11:055002. [DOI: 10.1088/1748-6041/11/5/055002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Sionkowska A, Skrzyński S, Śmiechowski K, Kołodziejczak A. The review of versatile application of collagen. POLYM ADVAN TECHNOL 2016. [DOI: 10.1002/pat.3842] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Alina Sionkowska
- Department of Chemistry of Biomaterials and Cosmetics, Faculty of Chemistry; Nicolaus Copernicus University in Toruń; 87-100 Torun Poland
| | - Sławomir Skrzyński
- Department of Neurosurgery, Military Institute of the Health Services; Central Clinical Hospital of the Department of National Defence; Szaserów 128 00-909 Warsaw Poland
| | - Krzysztof Śmiechowski
- Faculty of Materials Science and Design; Kazimierz Pułaski University of Technology and Humanities in Radom; Chrobrego 27 26-600 Radom Poland
| | - Agata Kołodziejczak
- Department of Chemistry of Biomaterials and Cosmetics, Faculty of Chemistry; Nicolaus Copernicus University in Toruń; 87-100 Torun Poland
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Affiliation(s)
- Alina Sionkowska
- Department of Chemistry of Biomaterials and Cosmetics, Faculty of Chemistry; Nicolaus Copernicus University in Toruń; Poland
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Kumar A, Negi YS, Choudhary V, Bhardwaj NK. Fabrication of poly (vinyl alcohol)/ovalbumin/cellulose nanocrystals/nanohydroxyapatite based biocomposite scaffolds. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2015.1099102] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Computational modelling of ovine critical-sized tibial defects with implanted scaffolds and prediction of the safety of fixator removal. J Mech Behav Biomed Mater 2015; 44:133-46. [DOI: 10.1016/j.jmbbm.2015.01.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 01/05/2015] [Accepted: 01/07/2015] [Indexed: 11/23/2022]
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22
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Bhowmick A, Pramanik N, Manna PJ, Mitra T, Raja Selvaraj TK, Gnanamani A, Das M, Kundu PP. Development of porous and antimicrobial CTS–PEG–HAP–ZnO nano-composites for bone tissue engineering. RSC Adv 2015. [DOI: 10.1039/c5ra16755h] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We have developed porous, antimicrobial, biodegradable, and pH and blood compatible CTS–PEG–HAP–ZnO nanocomposites having good mechanical properties and osteoblast cell proliferation abilities to mimic cancellous bone in bone tissue engineering.
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Affiliation(s)
- Arundhati Bhowmick
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata-700009
- India
| | - Nilkamal Pramanik
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata-700009
- India
| | - Piyali Jana Manna
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata-700009
- India
| | - Tapas Mitra
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata-700009
- India
| | | | - Arumugam Gnanamani
- Microbiology Division
- CSIR-Central Leather Research Institute
- Chennai-600020
- India
| | - Manas Das
- Department of Chemical Engineering
- University of Calcutta
- Kolkata-700009
- India
| | - Patit Paban Kundu
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata-700009
- India
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Jing X, Mi HY, Cordie TM, Salick MR, Peng XF, Turng LS. Fabrication of shish–kebab structured poly(ε-caprolactone) electrospun nanofibers that mimic collagen fibrils: Effect of solvents and matrigel functionalization. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.08.061] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lee H, Kim Y, Kim S, Kim G. Mineralized biomimetic collagen/alginate/silica composite scaffolds fabricated by a low-temperature bio-plotting process for hard tissue regeneration: fabrication, characterisation and in vitro cellular activities. J Mater Chem B 2014; 2:5785-5798. [PMID: 32262022 DOI: 10.1039/c4tb00931b] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The natural biopolymers, collagen and alginate, have been widely used in various tissue regeneration procedures. However, their low mechanical and osteoinductive properties represent major limitations of their usage as bone tissue regenerative scaffolds. To overcome these deficiencies, biomimetic composite scaffolds were prepared using a mixture of collagen and alginate as a matrix material, and various silica weight fractions as a coating agent. The composite scaffolds were highly porous (porosity > 78%) and consisted of interconnected pores, with a mesh-like structure (strut diameter: 342-389 μm; average pore size: 468-481 μm). After incubation in a simulated body fluid, various levels of bone-like hydroxyapatite (HA) on the surface of the composite scaffolds developed in proportion to the increase in the silica content coating the scaffolds, indicating that the composite scaffolds have osteoinductive properties. The composite scaffolds were characterised in terms of various physical properties (water absorption, biodegradation and mechanical properties, etc.) and biological activities (cell viability, live/dead cells, DAPI/phalloidin analysis, osteogenic gene expression, etc.) using pre-osteoblasts (MC3T3-E1). The mechanical improvement (compressive modulus) of a composite scaffold in compressive mode was ∼2.4-fold in the dry state compared to the collagen/alginate scaffold. Cell proliferation on the composite scaffold was significantly improved by ∼1.3-fold compared to the mineralised collagen/alginate scaffold (control). Osteocalcin levels of the composite scaffold after 28 days in cell culture were significantly enhanced by 3.2-fold compared with the control scaffold. These results suggest that mineralised biomimetic composite scaffolds have potential for use in hard tissue regeneration.
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Affiliation(s)
- HyeongJin Lee
- Department of Biomechatronic Engineering, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, South Korea.
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Sun Y, Geutjes P, Oosterwijk E, Heerschap A. In vivo magnetic resonance imaging of type I collagen scaffold in rat: improving visualization of bladder and subcutaneous implants. Tissue Eng Part C Methods 2014; 20:964-71. [PMID: 24625324 DOI: 10.1089/ten.tec.2014.0046] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Noninvasive monitoring of implanted scaffolds is important to understand their behavior and role in tissue engineering, in particular to follow their degradation and interaction with host tissue. Magnetic resonance imaging (MRI) is well suited for this goal, but its application is often hampered by the low contrast of scaffolds that are prepared from biomaterials such as type I collagen. The aim of this study was to test iron oxide particles incorporation in improving their MRI contrasts, and to follow their degradation and tissue interactions. Scaffolds with and without iron oxide particles were implanted either subcutaneously or on the bladder of rats. At predetermined time points, in vivo MRI were obtained and tissues were then harvested for histology analysis and transmission electron microscopy. The result showed that the incorporation of iron oxide particles improved MRI contrast of the implants, providing information on their location, shapes, and degradation. Second, the host tissue reaction to the type I collagen implants could be observed in both MRI and histology. Finally, MRI also revealed that the degradation and host tissue reaction of iron particles-loaded scaffolds differed between subcutaneous and bladder implantation, which was substantiated by histology.
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Affiliation(s)
- Yi Sun
- 1 Department of Radiology, Radboud University Nijmegen Medical Centre , Nijmegen, The Netherlands
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Lee SJ, Yoo JJ, Atala A. Recent Applications of Polymeric Biomaterials and Stem Cells in Tissue Engineering and Regenerative Medicine. POLYMER-KOREA 2014. [DOI: 10.7317/pk.2014.38.2.113] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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27
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Chaisri P, Chingsungnoen A, Siri S. Repetitive Arg-Gly-Asp peptide as a cell-stimulating agent on electrospun poly(ϵ-caprolactone) scaffold for tissue engineering. Biotechnol J 2013; 8:1323-31. [DOI: 10.1002/biot.201300191] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 07/25/2013] [Accepted: 08/29/2013] [Indexed: 01/19/2023]
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Doyle H, Lohfeld S, McHugh P. Predicting the elastic properties of selective laser sintered PCL/β-TCP bone scaffold materials using computational modelling. Ann Biomed Eng 2013; 42:661-77. [PMID: 24057867 DOI: 10.1007/s10439-013-0913-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Accepted: 09/12/2013] [Indexed: 11/26/2022]
Abstract
This study assesses the ability of finite element (FE) models to capture the mechanical behaviour of sintered orthopaedic scaffold materials. Individual scaffold struts were fabricated from a 50:50 wt% poly-ε-caprolactone (PCL)/β-tricalcium phosphate (β-TCP) blend, using selective laser sintering. The tensile elastic modulus of single struts was determined experimentally. High resolution FE models of single struts were generated from micro-CT scans (28.8 μm resolution) and an effective strut elastic modulus was calculated from tensile loading simulations. Three material assignment methods were employed: (1) homogeneous PCL elastic constants, (2) composite PCL/β-TCP elastic constants based on rule of mixtures, and (3) heterogeneous distribution of micromechanically-determined elastic constants. In comparison with experimental results, the use of homogeneous PCL properties gave a good estimate of strut modulus; however it is not sufficiently representative of the real material as it neglects the β-TCP phase. The rule of mixtures method significantly overestimated strut modulus, while there was no significant difference between strut modulus evaluated using the micromechanically-determined elastic constants and experimentally evaluated strut modulus. These results indicate that the multi-scale approach of linking micromechanical modelling of the sintered scaffold material with macroscale modelling gives an accurate prediction of the mechanical behaviour of the sintered structure.
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Affiliation(s)
- Heather Doyle
- Biomechanics Research Centre (BMEC), Mechanical and Biomedical Engineering, College of Engineering and Informatics, National University of Ireland Galway, Galway, Ireland,
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Kim YH, Kim DH, Hwang J, Kim HS, Lim GY, Ryoo ZY, Choi SU, Lee S. The inclusion of fetal bovine serum in gelatin/PCL electrospun scaffolds reduces short-term osmotic stress in HEK 293 cells caused by scaffold components. J Appl Polym Sci 2013. [DOI: 10.1002/app.39052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Chen W, Zhou H, Weir MD, Tang M, Bao C, Xu HHK. Human embryonic stem cell-derived mesenchymal stem cell seeding on calcium phosphate cement-chitosan-RGD scaffold for bone repair. Tissue Eng Part A 2013; 19:915-27. [PMID: 23092172 DOI: 10.1089/ten.tea.2012.0172] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Calcium phosphate cement (CPC) has in situ-setting ability and excellent osteoconductivity. Human embryonic stem cells (hESCs) are exciting for regenerative medicine due to their strong proliferative ability and multilineage differentiation capability. However, there has been no report on hESC seeding with CPC. The objectives of this study were to obtain hESC-derived mesenchymal stem cells (hESCd-MSCs), and to investigate hESCd-MSC proliferation and osteogenic differentiation on novel CPC with chitosan immobilized with RGD (CPC-chitosan-RGD). RGD was covalently bonded with chitosan, which was then incorporated into CPC. The CPC-chitosan-RGD scaffold had higher strength and toughness than CPC-chitosan control without RGD (p<0.05). hESCs were cultured to form embryoid bodies (EBs), and the MSCs were then migrated out of the EBs. Flow cytometry indicated that the hESCd-MSCs expressed typical surface antigen profile of MSCs. hESCd-MSCs had good viability when seeded on CPC scaffolds. The percentage of live cells and the cell density were significantly higher on CPC-chitosan-RGD than CPC-chitosan control. Scanning electron microscope examination showed hESCd-MSCs with a healthy spreading morphology adherent to CPC. hESCd-MSCs expressed high levels of osteogenic markers, including alkaline phosphatase, osteocalcin, collagen I, and Runx2. The mineral synthesis by the hESCd-MSCs on the CPC-chitosan-RGD scaffold was twice that for CPC-chitosan control. In conclusion, hESCs were successfully seeded on CPC scaffolds for bone tissue engineering. The hESCd-MSCs had good viability and osteogenic differentiation on the novel CPC-chitosan-RGD scaffold. RGD incorporation improved the strength and toughness of CPC, and greatly enhanced the hESCd-MSC attachment, proliferation, and bone mineral synthesis. Therefore, the hESCd-MSC-seeded CPC-chitosan-RGD construct is promising to improve bone regeneration in orthopedic and craniofacial applications.
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Affiliation(s)
- Wenchuan Chen
- Biomaterials & Tissue Engineering Division, Department of Endodontics, Prosthodontics and Operative Dentistry, University of Maryland Dental School, Baltimore, MD 21201, USA
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Kim J, Jeong SY, Ju YM, Yoo JJ, Smith TL, Khang G, Lee SJ, Atala A. In vitro osteogenic differentiation of human amniotic fluid-derived stem cells on a poly(lactide-co-glycolide) (PLGA)-bladder submucosa matrix (BSM) composite scaffold for bone tissue engineering. Biomed Mater 2013; 8:014107. [PMID: 23353783 DOI: 10.1088/1748-6041/8/1/014107] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Stem cells have become an important component of tissue regeneration, as they are able to differentiate into various cell types if guided appropriately. It is well known that cellular differentiation is greatly influenced by the surrounding microenvironment. We have developed a composite scaffold system using a collagen matrix derived from porcine bladder submucosa matrix (BSM) and poly(lactide-co-glycolide) (PLGA). In this study, we investigated whether a composite scaffold composed of naturally derived matrix combined with synthetic polymers would provide a microenvironment to facilitate the induction of osteogenic differentiation. We first showed that human amniotic fluid-derived stem cells (hAFSCs) adhered to the composite scaffolds and proliferated over time. We also showed that the composite scaffolds facilitated the differentiation of hAFSCs into an osteogenic lineage. The expression of osteogenic genes, including RUNX2, osteopontin (OPN) and osteocalcin (OCN) was upregulated in cells cultured on the composite scaffolds incubated in the osteogenic medium compared with ones without. Increased alkaline phosphatase (ALP) activity and calcium content indicates that hAFSCs seeded on 3D porous BSM-PLGA composite scaffolds resulted in higher mineralization rates as the duration of induction increased. This was also evidenced by the mineralized matrix within the scaffolds. The composite scaffold system provides a proper microenvironment that can facilitate osteogenic differentiation of AFSCs. This scaffold system may be a good candidate material for bone tissue engineering.
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Affiliation(s)
- Jaehyun Kim
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
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Oh SH, Lee JH. Hydrophilization of synthetic biodegradable polymer scaffolds for improved cell/tissue compatibility. Biomed Mater 2013; 8:014101. [DOI: 10.1088/1748-6041/8/1/014101] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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El Fray M, Wagner H. Influence of PEG molecular masses on electrospinning of new multiblock terpoly(ester-ether-ester)s. Des Monomers Polym 2012. [DOI: 10.1080/1385772x.2012.688338] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Affiliation(s)
- M. El Fray
- a West Pomeranian University of Technology Szczecin, Polymer Institute, Division of Biomaterials and Microbiological Technologies , ul. Pulaskiego, 10 70-322 , Szczecin , Poland
| | - H.D. Wagner
- b Department of Materials & Interfaces , Weizmann Institute of Science , Rehovot , 76 100 , Israel
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Appel AA, Larson JC, Somo S, Zhong Z, Spicer PP, Kasper FK, Garson AB, Zysk AM, Mikos AG, Anastasio MA, Brey EM. Imaging of poly(α-hydroxy-ester) scaffolds with X-ray phase-contrast microcomputed tomography. Tissue Eng Part C Methods 2012; 18:859-65. [PMID: 22607529 DOI: 10.1089/ten.tec.2012.0123] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Porous scaffolds based on poly(α-hydroxy-esters) are under investigation in many tissue engineering applications. A biological response to these materials is driven, in part, by their three-dimensional (3D) structure. The ability to evaluate quantitatively the material structure in tissue-engineering applications is important for the continued development of these polymer-based approaches. X-ray imaging techniques based on phase contrast (PC) have shown a tremendous promise for a number of biomedical applications owing to their ability to provide a contrast based on alternative X-ray properties (refraction and scatter) in addition to X-ray absorption. In this research, poly(α-hydroxy-ester) scaffolds were synthesized and imaged by X-ray PC microcomputed tomography. The 3D images depicting the X-ray attenuation and phase-shifting properties were reconstructed from the measurement data. The scaffold structure could be imaged by X-ray PC in both cell culture conditions and within the tissue. The 3D images allowed for quantification of scaffold properties and automatic segmentation of scaffolds from the surrounding hard and soft tissues. These results provide evidence of the significant potential of techniques based on X-ray PC for imaging polymer scaffolds.
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Affiliation(s)
- Alyssa A Appel
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL 60616, USA
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Nemati Hayati A, Hosseinalipour S, Rezaie H, Shokrgozar M. Characterization of poly(3-hydroxybutyrate)/nano-hydroxyapatite composite scaffolds fabricated without the use of organic solvents for bone tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2011.11.013] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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37
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Chen H, Fan X, Xia J, Chen P, Zhou X, Huang J, Yu J, Gu P. Electrospun chitosan-graft-poly (ɛ-caprolactone)/poly (ɛ-caprolactone) nanofibrous scaffolds for retinal tissue engineering. Int J Nanomedicine 2011; 6:453-61. [PMID: 21499434 PMCID: PMC3075910 DOI: 10.2147/ijn.s17057] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Indexed: 11/23/2022] Open
Abstract
A promising therapy for retinal diseases is to employ biodegradable scaffolds to deliver retinal progenitor cells (RPCs) for repairing damaged or diseased retinal tissue. In the present study, cationic chitosan-graft-poly(ɛ-caprolactone)/polycaprolactone (CS-PCL/PCL) hybrid scaffolds were successfully prepared by electrospinning. Characterization of the obtained nanofibrous scaffolds indicated that zeta-potential, fiber diameter, and the content of amino groups on their surface were closely correlated with the amount of CS-PCL in CS-PCL/PCL scaffolds. To assess the cell-scaffold interaction, mice RPCs (mRPCs) were cultured on the electrospun scaffolds for 7 days. In-vitro proliferation assays revealed that mRPCs proliferated faster on the CS-PCL/PCL (20/80) scaffolds than the other electrospun scaffolds. Scanning electron microscopy and the real-time quantitative polymerase chain reaction results showed that mRPCs grown on CS-PCL/PCL (20/80) scaffolds were more likely to differentiate towards retinal neurons than those on PCL scaffolds. Taken together, these results suggest that CS-PCL/PCL(20/80) scaffolds have potential application in retinal tissue engineering.
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Affiliation(s)
- Honglin Chen
- Department of Ophthalmology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
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Abstract
Current orthopedic practice to treat osteo-degenerative diseases, such as osteoporosis, calls for antiresorptive therapies and anabolic bone medications. In some cases, surgery, in which metal rods are inserted into the bones, brings symptomatic relief. As these treatments may ameliorate the symptoms, but cannot cure the underlying dysregulation of the bone, the orthopedic field seems ripe for regenerative therapies using transplantation of stem cells. Stem cells bring with them the promise of completely curing a disease state, as these are the cells that normally regenerate tissues in a healthy organism. This chapter assembles reports that have successfully used stem cells to generate osteoblasts, osteoclasts, and chondrocytes - the cells that can be found in healthy bone tissue - in culture, and review and collate studies about animal models that were employed to test the function of these in vitro "made" cells. A particular emphasis is placed on embryonic stem cells, the most versatile of all stem cells. Due to their pluripotency, embryonic stem cells represent the probably most challenging stem cells to bring into the clinic, and therefore, the associated problems are discussed to put into perspective where the field currently is and what we can expect for the future.
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Affiliation(s)
- Nicole I zur Nieden
- Department of Cell Therapy, Applied Stem Cell Technology Unit, Fraunhofer Institute for Cell Therapy and Immunology, Leipzig, Germany.
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Huang Y, Ren J, Ren T, Gu S, Tan Q, Zhang L, Lv K, Pan K, Jiang X. Bone marrow stromal cells cultured on poly (lactide-co-glycolide)/nano-hydroxyapatite composites with chemical immobilization of Arg-Gly-Asp peptide and preliminary bone regeneration of mandibular defect thereof. J Biomed Mater Res A 2010; 95:993-1003. [PMID: 20872750 DOI: 10.1002/jbm.a.32922] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2007] [Revised: 05/20/2010] [Accepted: 05/21/2010] [Indexed: 11/10/2022]
Abstract
Polyethyleneimine (PEI) was used to create active groups on the poly (lactide-co-glycolide)/nano-hydroxyapatite (PLGA/NHA) surface and Arg-Gly-Asp (RGD) was grafted on the active groups and novel PLGA/NHA 2-D membranes and 3D scaffolds modified with RGD were obtained. X-ray photoelectron spectrum (XPS) results show that sulfur displays only on the modified surface. The RGD-modified PLGA/NHA materials also have much lower static water contact angle and much higher water-absorption ability, which shows that after chemical treatment, the modified materials show better hydrophilic properties. Atomic force microscope (AFM) shows that after surface modification, the surface morphology of PLGA is greatly changed. All these results indicate that RGD peptide has successfully grafted on the surface of PLGA. Rabbit bone marrow stromal cells (MSCs) were seeded in the 2D membranes and 3D scaffolds materials. The influences of the RGD on the cell attachment, growth and differentiation, and proliferation on the different materials were studied. The modified scaffolds were implanted into rabbits to observe preliminary application in regeneration of mandibular defect. The PLGA/NHA-RGD presents better results in bone regeneration in rabbit mandibular defect.
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Affiliation(s)
- Yanxia Huang
- Institute of Nano- and Biopolymeric Materials, School of Material Science and Engineering, Tongji University, Shanghai, People's Republic of China
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40
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Jin HH, Min SH, Song YK, Park HC, Yoon SY. Degradation behavior of poly(lactide-co-glycolide)/β-TCP composites prepared using microwave energy. Polym Degrad Stab 2010. [DOI: 10.1016/j.polymdegradstab.2010.04.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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41
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Yang B, Zhou L, Sun Z, Yang R, Chen Y, Dai Y. In vitro evaluation of the bioactive factors preserved in porcine small intestinal submucosa through cellular biological approaches. J Biomed Mater Res A 2010; 93:1100-9. [PMID: 19768788 DOI: 10.1002/jbm.a.32534] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The objective of this study was to develop cellular biological approaches to evaluate the potential effect of bioactive factors in porcine small intestinal submucosa (SIS) on bladder regeneration and angiogenesis. For this purpose, we cultured human bladder smooth muscle cell (HBSMC) and human umbilical vein endothelial cell (HUVEC), and then used cellular biological techniques to characterize in vitro biological effect of SIS components on HBSMC and HUVEC. Our results indicated that the SIS components had stimulated the attachment, proliferation, and migration of HBSMC and HUVEC, as well as tube formation by HUVEC on Matrigel. These results implied that the SIS might have preserved a mixture of bioactive factors including cell adhesion factors, mitogenic factors, chemotactic cytokines, and angiogenic factors, and these bioactive factors would have the potential of promoting bladder regeneration and angiogenesis. In conclusion, these cellular biological approaches might be helpful and effective for evaluation of the bioactive factors preserved in porcine SIS before it is used for bladder augmentation in humans.
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Affiliation(s)
- Bin Yang
- Department of Urology, Affiliated Drum Tower Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu 210008, People's Republic of China
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Martel-Estrada SA, Martínez-Pérez CA, Chacón-Nava JG, García-Casillas PE, Olivas-Armendariz I. Synthesis and thermo-physical properties of chitosan/poly(dl-lactide-co-glycolide) composites prepared by thermally induced phase separation. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2010.03.032] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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43
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Aboudzadeh N, Imani M, Shokrgozar MA, Khavandi A, Javadpour J, Shafieyan Y, Farokhi M. Fabrication and characterization of poly(D,L-lactide-co-glycolide)/hydroxyapatite nanocomposite scaffolds for bone tissue regeneration. J Biomed Mater Res A 2010; 94:137-45. [DOI: 10.1002/jbm.a.32673] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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44
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Castellani C, Zanoni G, Tangl S, van Griensven M, Redl H. Biphasic calcium phosphate ceramics in small bone defects: potential influence of carrier substances and bone marrow on bone regeneration. Clin Oral Implants Res 2009; 20:1367-74. [DOI: 10.1111/j.1600-0501.2009.01760.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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45
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Song C, Huang YD, Wei Z, Hou Y, Xie WJ, Huang RP, Song YM, Lv HG, Song CF. Polyglycolic Acid-islet grafts improve blood glucose and insulin concentrations in rats with induced diabetes. Transplant Proc 2009; 41:1789-93. [PMID: 19545729 DOI: 10.1016/j.transproceed.2009.01.079] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2008] [Revised: 10/25/2008] [Accepted: 01/08/2009] [Indexed: 12/01/2022]
Abstract
Pancreatic islet transplantation is a promising therapeutic treatment for type 1 diabetes mellitus. In the present study, we cocultured islets with or without a polyglycolic acid (PGA) fibrous scaffold for 5 days and transplanted the PGA-islet grafts into the leg muscles of Wistar rats with streptozotocin-induced diabetes; controls were injected with saline. The results showed that the blood glucose concentrations of the group given islets embedded with the PGA scaffold were lower than those without the scaffold or controls. On the other hand, the insulin content of the PGA-islet group was higher at all 5 time points compared with the insulin contents of the other 2 groups. After transplantation, many islets in the PGA-islet grafts showed normal morphology (as seen under the scanning electron microscope) and were surrounded by red blood cells. A fibrous extracellular matrix was visible around the PGA-islet grafts. These results demonstrated that PGA-islet grafts improved blood glucose and insulin concentrations in rats with induced diabetes.
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Affiliation(s)
- C Song
- Department of Applied Chemistry, Harbin Institute of Technology, Harbin, China
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46
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Liuyun J, Yubao L, Chengdong X. Preparation and biological properties of a novel composite scaffold of nano-hydroxyapatite/chitosan/carboxymethyl cellulose for bone tissue engineering. J Biomed Sci 2009; 16:65. [PMID: 19594953 PMCID: PMC2720940 DOI: 10.1186/1423-0127-16-65] [Citation(s) in RCA: 127] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Accepted: 07/14/2009] [Indexed: 11/10/2022] Open
Abstract
In this study, we report the physico-chemical and biological properties of a novel biodegradable composite scaffold made of nano-hydroxyapatite and natural derived polymers of chitosan and carboxymethyl cellulose, namely, n-HA/CS/CMC, which was prepared by freeze-drying method. The physico-chemical properties of n-HA/CS/CMC scaffold were tested by infrared absorption spectra (IR), transmission electron microscope(TEM), scanning electron microscope(SEM), universal material testing machine and phosphate buffer solution (PBS) soaking experiment. Besides, the biological properties were evaluated by MG63 cells and Mesenchymal stem cells (MSCs) culture experiment in vitro and a short period implantation study in vivo. The results show that the composite scaffold is mainly formed through the ionic crossing-linking of the two polyions between CS and CMC, and n-HA is incorporated into the polyelectrolyte matrix of CS-CMC without agglomeration, which endows the scaffold with good physico-chemical properties such as highly interconnected porous structure, high compressive strength and good structural stability and degradation. More important, the results of cells attached, proliferated on the scaffold indicate that the scaffold is non-toxic and has good cell biocompatibility, and the results of implantation experiment in vivo further confirm that the scaffold has good tissue biocompatibility. All the above results suggest that the novel degradable n-HA/CS/CMC composite scaffold has a great potential to be used as bone tissue engineering material.
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Affiliation(s)
- Jiang Liuyun
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, PR China.
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Electrospun nanofibers composed of poly(ε-caprolactone) and polyethylenimine for tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2009.01.023] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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48
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Liu L, Xiong Z, Yan Y, Zhang R, Wang X, Jin L. Multinozzle low-temperature deposition system for construction of gradient tissue engineering scaffolds. J Biomed Mater Res B Appl Biomater 2009; 88:254-63. [PMID: 18698625 DOI: 10.1002/jbm.b.31176] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Tissue engineering is a technology that enables us to construct complicated hominine organs composed of many different types of cells. One of the key points to achieve this goal is to control the material composition and porous structure of the scaffold accurately. A disposable syringe based volume-driven injecting (VDI) nozzle was proposed and designed to extrude both natural derived and synthetic polymers. A multinozzle low-temperature deposition and manufacturing (M-LDM) system is proposed to fabricate scaffolds with heterogeneous materials and gradient hierarchical porous structures. PLGA, collagen, gelatin, chitosan can be extruded without leaking to form hierarchical porous scaffolds for primary study. Composite scaffolds with two kinds of materials were fabricated via two different nozzles to get both hydrophilic and mechanical properties. The results from scanning electron microscopy (SEM) demonstrated that the natural-derived biomaterials were strongly absorbed onto the synthetic biomaterials to form a stable network. Several gradient PLGA/TCP scaffolds were also fabricated to supply several samples.
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Affiliation(s)
- Li Liu
- Laboratory for Advanced Materials Processing Technology, Ministry of Education, People's Republic of China
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Oxygen generating scaffolds for enhancing engineered tissue survival. Biomaterials 2009; 30:757-62. [DOI: 10.1016/j.biomaterials.2008.09.065] [Citation(s) in RCA: 204] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2008] [Accepted: 09/29/2008] [Indexed: 11/21/2022]
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50
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Eberli D, Freitas Filho L, Atala A, Yoo JJ. Composite scaffolds for the engineering of hollow organs and tissues. Methods 2008; 47:109-15. [PMID: 18952175 DOI: 10.1016/j.ymeth.2008.10.014] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2008] [Revised: 10/05/2008] [Accepted: 10/16/2008] [Indexed: 11/24/2022] Open
Abstract
Several types of synthetic and naturally derived biomaterials have been used for augmenting hollow organs and tissues. However, each has desirable traits which were exclusive of the other. We fabricated a composite scaffold and tested its potential for the engineering of hollow organs in a bladder tissue model. The composite scaffolds were configured to accommodate a large number of cells on one side and were designed to serve as a barrier on the opposite side. The scaffolds were fabricated by bonding a collagen matrix to PGA polymers with threaded collagen fiber stitches. Urothelial and bladder smooth muscle cells were seeded on the composite scaffolds, and implanted in mice for up to 4 weeks and analyzed. Both cell types readily attached and proliferated on the scaffolds and formed bladder tissue-like structures in vivo. These structures consisted of a luminal urothelial layer, a collagen rich compartment and a peripheral smooth muscle layer. Biomechanical studies demonstrated that the tissues were readily elastic while maintaining their pre-configured structures. This study demonstrates that a composite scaffold can be fabricated with two completely different polymer systems for the engineering of hollow organs. The composite scaffolds are biocompatible, possess adequate physical and structural characteristics for bladder tissue engineering, and are able to form tissues in vivo. This scaffold system may be useful in patients requiring hollow organ replacement.
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Affiliation(s)
- Daniel Eberli
- Wake Forest Institute for Regenerative Medicine, Medical Center Boulevard, Winston Salem, NC 27154-1094, USA.
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