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Li Q, Chang B, Dong H, Liu X. Functional microspheres for tissue regeneration. Bioact Mater 2022; 25:485-499. [PMID: 37056261 PMCID: PMC10087113 DOI: 10.1016/j.bioactmat.2022.07.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/13/2022] [Accepted: 07/26/2022] [Indexed: 11/02/2022] Open
Abstract
As a new type of injectable biomaterials, functional microspheres have attracted increasing attention in tissue regeneration because they possess some advantageous properties compared to other biomaterials, including hydrogels. A variety of bio-inspired microspheres with unique structures and properties have been developed as cellular carriers and drug delivery vehicles in recent years. In this review, we provide a comprehensive summary of the progress of functional and biodegradable microspheres that have been used for tissue regeneration over the last two decades. First, we briefly introduce the biomaterials and general methods for microsphere fabrication. Next, we focus on the newly developed technologies for preparing functional microspheres, including macroporous microspheres, nanofibrous microspheres, hollow microspheres, core-shell structured microspheres, and surface-modified functional microspheres. After that, we discuss the application of functional microspheres for tissue regeneration, specifically for bone, cartilage, dental, neural, cardiac, and skin tissue regeneration. Last, we present our perspectives and future directions of functional microspheres as injectable carriers for the future advancement of tissue regeneration.
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A Paradigm Shift in Tissue Engineering: From a Top–Down to a Bottom–Up Strategy. Processes (Basel) 2021. [DOI: 10.3390/pr9060935] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Tissue engineering (TE) was initially designed to tackle clinical organ shortage problems. Although some engineered tissues have been successfully used for non-clinical applications, very few (e.g., reconstructed human skin) have been used for clinical purposes. As the current TE approach has not achieved much success regarding more broad and general clinical applications, organ shortage still remains a challenging issue. This very limited clinical application of TE can be attributed to the constraints in manufacturing fully functional tissues via the traditional top–down approach, where very limited cell types are seeded and cultured in scaffolds with equivalent sizes and morphologies as the target tissues. The newly proposed developmental engineering (DE) strategy towards the manufacture of fully functional tissues utilises a bottom–up approach to mimic developmental biology processes by implementing gradual tissue assembly alongside the growth of multiple cell types in modular scaffolds. This approach may overcome the constraints of the traditional top–down strategy as it can imitate in vivo-like tissue development processes. However, several essential issues must be considered, and more mechanistic insights of the fundamental, underpinning biological processes, such as cell–cell and cell–material interactions, are necessary. The aim of this review is to firstly introduce and compare the number of cell types, the size and morphology of the scaffolds, and the generic tissue reconstruction procedures utilised in the top–down and the bottom–up strategies; then, it will analyse their advantages, disadvantages, and challenges; and finally, it will briefly discuss the possible technologies that may overcome some of the inherent limitations of the bottom–up strategy.
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Pedram P, Mazio C, Imparato G, Netti PA, Salerno A. Bioinspired Design of Novel Microscaffolds for Fibroblast Guidance toward In Vitro Tissue Building. ACS APPLIED MATERIALS & INTERFACES 2021; 13:9589-9603. [PMID: 33595284 DOI: 10.1021/acsami.0c20687] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Porous microscaffolds (μ-scaffs) play a crucial role in modular tissue engineering as they control cell functions and guide hierarchical tissue formation toward building new functional tissue analogues. In the present study, we developed a new route to prepare porous polycaprolactone (PCL) μ-scaffs with a bioinspired trabecular structure that supported in vitro adhesion, growth, and biosynthesis of human dermal fibroblasts (HDFs). The method involved the use of poly(ethylene oxide) (PEO) as a biocompatible porogen and a fluidic emulsion/porogen leaching/particle coagulation process to obtain spherical μ-scaffs with controllable diameter and full pore interconnectivity. To achieve this objective, we investigated the effect of PEO concentration and the temperature of the coagulation bath on the μ-scaff architecture, while we modulated the μ-scaff diameter distribution by varying the PCL-PEO amount in the starting solution and changing the flow rate of the continuous phase (QCP). μ-Scaff morphology, pore architecture, and diameter distribution were assessed using scanning electron microscopy (SEM) analysis, microcomputed tomography (microCT), and Image analysis. We reported that the selection of 60 wt % PEO concentration, together with a 4 °C coagulation bath temperature and ultrasound postprocessing, allowed for the design and fabrication of μ-scaff with porosity up to 80% and fully interconnected pores on both the μ-scaff surface and the core. Furthermore, μ-scaff diameter distributions were finely tuned in the 100-600 μm range with the coefficient of variation lower than 5% by selecting the PCL-PEO concentration in the 1-10% w/v range and QCP of either 8 or 18 mL/min. Finally, we investigated the capability of the HDF-seeded PCL μ-scaff to form hybrid (biological/synthetic) tissue in vitro. Cell culture tests demonstrated that PCL μ-scaff enabled HDF adhesion, proliferation, colonization, and collagen biosynthesis within inter- and intraparticle spaces and guided the formation of a large (centimeter-sized) viable tissue construct.
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Affiliation(s)
- Parisa Pedram
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia (IIT@CRIB), Largo Barsanti e Matteucci, 53, Naples 80125, Italy
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples 80125, Italy
| | - Claudia Mazio
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia (IIT@CRIB), Largo Barsanti e Matteucci, 53, Naples 80125, Italy
| | - Giorgia Imparato
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia (IIT@CRIB), Largo Barsanti e Matteucci, 53, Naples 80125, Italy
| | - Paolo A Netti
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia (IIT@CRIB), Largo Barsanti e Matteucci, 53, Naples 80125, Italy
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples 80125, Italy
- Interdisciplinary Research Center on Biomaterials (CRIB), University of Naples Federico II, Naples 80125, Italy
| | - Aurelio Salerno
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia (IIT@CRIB), Largo Barsanti e Matteucci, 53, Naples 80125, Italy
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Porous calcium phosphate-collagen composite microspheres for effective growth factor delivery and bone tissue regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 109:110480. [PMID: 32228926 DOI: 10.1016/j.msec.2019.110480] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 11/18/2019] [Accepted: 11/20/2019] [Indexed: 01/16/2023]
Abstract
Microspheres are beneficial for filling defects of various shapes and provide a large surface area for cell attachment. Porous microspheres have attracted particular attention because they can deliver cells and bioactive molecules such as growth factors. In this study, BCP-collagen composite microspheres were developed for growth factor delivery in bone regeneration. Firstly, porous biphasic calcium phosphate (BCP) microspheres were fabricated by applying a water-in-oil emulsion technique using camphene as a pore generator. Then, porous BCP-collagen composite microspheres were fabricated by repetitively dip coating the microspheres in a collagen solution to effectively deliver growth factor to bone defects. Characterization of the microspheres and in vitro studies were conducted to investigate the effect of collagen infiltration on bone regeneration. In addition, in vitro evaluation demonstrated the sustained bone morphogenetic protein-2 (BMP-2) delivery of the microspheres and the effect of cell differentiation, and in vivo assessment with rabbits revealed that the microspheres filled the defect well and that bone could be regenerated through the microspheres. Moreover, the composite system was more effective for bone regeneration than the bare BCP microspheres because of the drug retention of collagen. These findings indicate that the porous microspheres are effective for tissue regeneration by continuous growth factor delivery.
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5
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Shi X, Cui L, Sun H, Jiang N, Heng L, Zhuang X, Gan Z, Chen X. Promoting cell growth on porous PLA microspheres through simple degradation methods. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.01.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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6
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Zhou A, Ye Z, Zhou Y, Tan WS. Bioactive poly(ε-caprolactone) microspheres with tunable open pores as microcarriers for tissue regeneration. J Biomater Appl 2019; 33:1242-1251. [PMID: 30782056 DOI: 10.1177/0885328218825371] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Microparticles with porous structure can be applied as microcarriers for both cell culture and tissue regeneration. While well-controlled pore structure represents a critical challenge to be achieved. In the present study, in order to develop microcarriers for cell culture, a series of poly(ε-caprolactone) microspheres were fabricated with varied macroporous structures. Poly(ε-caprolactone) microspheres were prepared via the integration of the emulsion/solvent evaporation and particle leaching mechanisms. Particularly, by adjusting poly(ε-caprolactone) concentration and the ratio between the porogen paraffin and poly(ε-caprolactone), the microspheres with the pore size of 25.6-84.0 μm and the porosity of 57.4-75.5% were obtained. Further, the microspheres were subjected to alkaline hydrolysis, followed by surface coating with hydroxyapatite. These porous poly(ε-caprolactone) microspheres with surface modification well supported the adhesion and growth of human fibroblasts. Together, bioactive poly(ε-caprolactone) microspheres with controlled pore structure are potential to be applied in cell culture and tissue regeneration.
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Affiliation(s)
- Anmin Zhou
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Zhaoyang Ye
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Yan Zhou
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Wen-Song Tan
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
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7
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De Silva Thompson D, Peticone C, Burova I, Shipley RJ, Knowles JC, Kim HW, Micheletti M, Wall IB. Assessing behaviour of osteoblastic cells in dynamic culture conditions using titanium-doped phosphate glass microcarriers. J Tissue Eng 2019; 10:2041731419825772. [PMID: 30800261 PMCID: PMC6378638 DOI: 10.1177/2041731419825772] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 12/17/2018] [Indexed: 11/16/2022] Open
Abstract
Tissue engineering is a promising approach for bone regeneration; yet challenges remain that limit successful translation to patients. It is necessary to understand how real-world manufacturing processes will affect the constituent cells and biomaterials that are needed to create engineered bone. Bioactive phosphate glasses processed into microspheres are an attractive platform for expanding bone-forming cells and also for driving their osteogenic differentiation and maturation. The aim of this study was to assess whether Ti-doped phosphate glass microspheres could support osteoblastic cell responses in dynamic cell culture environments. Dynamic culture conditions were achieved using microwell studies under orbital agitation. Dimensionless parameters such as the Froude number were used to inform the choice of agitation speeds, and the impact on cell proliferation and microunit formation was quantified. We found that phosphate glass microspheres doped with titanium dioxide at both 5 and 7 mol% provided a suitable biomaterial platform for effective culture of MG63 osteoblastic cells and was not cytotoxic. Dynamic culture conditions supported expansion of MG63 cells and both 150 and 300 rpm orbital shake resulted in higher cell yield than static cultures at the end of the culture (day 13). The Froude number analysis provided insight into how the microunit size could be manipulated to enable an appropriate agitation speed to be used, while ensuring buoyancy of the microunits. These small-scale experiments and analyses provide understanding of the impact of fluid flow on cell expansion that will have increasing importance when scaling up to process technologies that can deliver clinical quantities of cell-microsphere units. Such knowledge will enable future engineering of living bone-like material using processing systems such as bioreactors that use mixing and agitation for nutrient transfer, therefore introducing cells to dynamic culture conditions.
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Affiliation(s)
| | - Carlotta Peticone
- Department of Biochemical Engineering, University College London, London, UK
| | - Iva Burova
- Department of Mechanical Engineering, University College London, London, UK
| | - Rebecca J Shipley
- Department of Mechanical Engineering, University College London, London, UK
| | - Jonathan C Knowles
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, UK.,The Discoveries Centre for Regenerative and Precision Medicine, University College London, London, UK.,Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Republic of Korea.,UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, Republic of Korea
| | - Hae-Won Kim
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Republic of Korea.,UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, Republic of Korea.,Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
| | - Martina Micheletti
- Department of Biochemical Engineering, University College London, London, UK
| | - Ivan B Wall
- Department of Biochemical Engineering, University College London, London, UK.,Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea.,Aston Medical Research Institute and School of Life & Health Sciences, Aston University, Birmingham, UK
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8
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He Y, Yu X, Chen Z, Li L. Stromal vascular fraction cells plus sustained release VEGF/Ang-1-PLGA microspheres improve fat graft survival in mice. J Cell Physiol 2018; 234:6136-6146. [PMID: 30238985 DOI: 10.1002/jcp.27368] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 08/16/2018] [Indexed: 01/17/2023]
Abstract
Autologous fat transplantation is increasingly applied in plastic and reconstructive surgery. Stromal vascular fraction cells (SVFs) combined with angiogenic factors, such as VEGF (vascular endothelial growth factor A) and Ang-1 (angiogenin-1), can improve angiogenesis, which is a critical factor for graft survival. However, direct transplant with such a mixture is insufficient owing to the short half-life of angiogenic factors. In this study, we evaluated whether a double sustained release system of VEGF/ANG-1-PLGA (poly (lactic-co-glycolic acid)) microspheres plus SVFs can improve angiogenesis and graft survival after autologous fat transplantation. VEGF/ANG-1-PLGA-sustained release microspheres were fabricated by a modified double emulsion-solvent evaporation technique. Human aspirated fat was mixed with SVF suspension plus VEGF/ANG-1 sustained release microspheres (Group C), SVF suspension (Group B) alone, or Dulbecco's modified Eagle's medium as the control (Group A). Eighteen immunocompromised nude mice were injected with these three mixtures subcutaneously at random positions. After 8 weeks, the mean volume of grafts was greater in the SVFs plus VEGF/ANG-1-PLGA group than in the control and SVFs groups (1.08 ± 0.069 ml vs. 0.62 ± 0.036 ml, and 0.83 ± 0.059 ml, respectively). Histological assessments showed that lower fibrosis, but greater microvascular density in the SVFs plus VEGF/ANG-1-PLGA group than in the other groups, though the SVFs group also had an appropriate capillary density and reduced fibrosis. Our findings indicate that SVFs plus VEGF/ANG-1-PLGA-sustained release microspheres can improve angiogenesis and graft survival after autologous fat transplantation.
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Affiliation(s)
- Yucang He
- First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiaofang Yu
- First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhuojie Chen
- First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Liqun Li
- First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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9
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Gupta V, Khan Y, Berkland CJ, Laurencin CT, Detamore MS. Microsphere-Based Scaffolds in Regenerative Engineering. Annu Rev Biomed Eng 2018. [PMID: 28633566 DOI: 10.1146/annurev-bioeng-071516-044712] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Microspheres have long been used in drug delivery applications because of their controlled release capabilities. They have increasingly served as the fundamental building block for fabricating scaffolds for regenerative engineering because of their ability to provide a porous network, offer high-resolution control over spatial organization, and deliver growth factors/drugs and/or nanophase materials. Because they provide physicochemical gradients via spatiotemporal release of bioactive factors and nanophase ceramics, microspheres are a desirable tool for engineering complex tissues and biological interfaces. In this review we describe various methods for microsphere fabrication and sintering, and elucidate how these methods influence both micro- and macroscopic scaffold properties, with a special focus on the nature of sintering. Furthermore, we review key applications of microsphere-based scaffolds in regenerating various tissues. We hope to inspire researchers to join a growing community of investigators using microspheres as tissue engineering scaffolds so that their full potential in regenerative engineering may be realized.
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Affiliation(s)
- Vineet Gupta
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66045;
| | - Yusuf Khan
- Department of Orthopaedic Surgery, University of Connecticut Health Campus, Farmington, Connecticut 06030; , .,Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut 06269.,Institute for Regenerative Engineering, University of Connecticut Health Campus, Farmington, Connecticut 06030
| | - Cory J Berkland
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66045; .,Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045;
| | - Cato T Laurencin
- Department of Orthopaedic Surgery, University of Connecticut Health Campus, Farmington, Connecticut 06030; , .,Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut 06269.,Institute for Regenerative Engineering, University of Connecticut Health Campus, Farmington, Connecticut 06030
| | - Michael S Detamore
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma 73019;
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10
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Preparation of Porous Polylactide Microspheres and Their Application in Tissue Engineering. CHINESE JOURNAL OF POLYMER SCIENCE 2018. [DOI: 10.1007/s10118-018-2079-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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11
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Gupta D, Grant DM, Zakir Hossain KM, Ahmed I, Sottile V. Role of geometrical cues in bone marrow-derived mesenchymal stem cell survival, growth and osteogenic differentiation. J Biomater Appl 2017; 32:906-919. [DOI: 10.1177/0885328217745699] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Dhanak Gupta
- Wolfson Centre for Stem Cells, Tissue Engineering and Modelling (STEM), School of Medicine, University of Nottingham, Nottingham, UK
- Advanced Materials Research Group, Faculty of Engineering, University of Nottingham, UK
| | - David M Grant
- Advanced Materials Research Group, Faculty of Engineering, University of Nottingham, UK
| | - Kazi M Zakir Hossain
- Advanced Materials Research Group, Faculty of Engineering, University of Nottingham, UK
| | - Ifty Ahmed
- Advanced Materials Research Group, Faculty of Engineering, University of Nottingham, UK
| | - Virginie Sottile
- Wolfson Centre for Stem Cells, Tissue Engineering and Modelling (STEM), School of Medicine, University of Nottingham, Nottingham, UK
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12
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Jin GZ, Kim HW. Co-culture of Human Dental Pulp Stem Cells and Endothelial Cells Using Porous Biopolymer Microcarriers: A Feasibility Study for Bone Tissue Engineering. Tissue Eng Regen Med 2017; 14:393-401. [PMID: 30603495 PMCID: PMC6171605 DOI: 10.1007/s13770-017-0061-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 05/18/2017] [Accepted: 06/01/2017] [Indexed: 01/20/2023] Open
Abstract
Delivery of stem cells with osteogenesis while enabling angiogenesis is important for vascularized bone tissue engineering. Here a three-dimensional (3D) co-culture system of dental pulp stem cells (DPSCs) and endothelial cells (ECs) was designed using porous microcarriers, and the feasibility of applying to bone tissue engineering was investigated in vitro. Highly porous spherical microcarriers made of degradable biopolymers were prepared with sizes of hundreds of micrometers. The microcarriers loaded with DPSCs were co-cultured with ECs embedded in a hydrogel of type I collagen. An optimal co-culture medium that preserves the viability of ECs while stimulating the osteogenic differentiation of DPSCs was found to be a 10:1 of osteogenic medium:endothelial medium. The co-cultured constructs of DPSCs/ECs showed significantly higher level of alkaline phosphatase activity than the mono-cultured cells. Moreover, the expressions of genes related with osteogenesis and angiogenesis were significantly up-regulated by the co-cultures with respect to the mono-cultures. Results imply the interplay between ECs and DPSCs through the designed 3D co-culture models. The microcarrier-enabled co-cultured cell system is considered to be useful as an alternative tool for future vascularized bone tissue engineering.
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Affiliation(s)
- Guang-Zhen Jin
- Institute of Tissue Regeneration Engineering (ITREN), School of Dentistry, Dankook University, Cheonan, 31116 Republic of Korea
- Department of Nanobiomedical Science & BK21 Plus NBM Global Research Center for Regenerative Medicine, School of Dentistry, Dankook University, Cheonan, 31116 Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), School of Dentistry, Dankook University, Cheonan, 31116 Republic of Korea
- Department of Nanobiomedical Science & BK21 Plus NBM Global Research Center for Regenerative Medicine, School of Dentistry, Dankook University, Cheonan, 31116 Republic of Korea
- Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan, 31116 Republic of Korea
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13
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Carbon dioxide-assisted bioassembly of cell-loaded scaffolds from polymeric porous microspheres. J Supercrit Fluids 2017. [DOI: 10.1016/j.supflu.2016.10.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Shekaran A, Lam A, Sim E, Jialing L, Jian L, Wen JTP, Chan JKY, Choolani M, Reuveny S, Birch W, Oh S. Biodegradable ECM-coated PCL microcarriers support scalable human early MSC expansion and in vivo bone formation. Cytotherapy 2016; 18:1332-44. [DOI: 10.1016/j.jcyt.2016.06.016] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 06/06/2016] [Accepted: 06/27/2016] [Indexed: 10/21/2022]
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16
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Fabrication of uniform-sized poly-ɛ-caprolactone microspheres and their applications in human embryonic stem cell culture. Biomed Microdevices 2016; 17:105. [PMID: 26458560 DOI: 10.1007/s10544-015-0010-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The generation of liquefied poly-ɛ-caprolactone (PCL) droplets by means of a microfluidic device results in uniform-sized microspheres, which are validated as microcarriers for human embryonic stem cell culture. Formed droplet size and size distribution, as well as the resulting PCL microsphere size, are correlated with the viscosity and flow rate ratio of the dispersed (Q d) and continuous (Q c) phases. PCL in dichloromethane increases its viscosity with concentration and molecular weight. Higher viscosity and Q d/Q c lead to the formation of larger droplets, within two observed formation modes: dripping and jetting. At low viscosity of dispersed phase and Q d/Q c, the microfluidic device is operated in dripping mode, which generates droplets and microspheres with greater size uniformity. Solutions with lower molecular weight PCL have lower viscosity, resulting in a wider concentration range for the dripping mode. When coated with extracellular matrix (ECM) proteins, the fabricated PCL microspheres are demonstrated capable of supporting the expansion of human embryonic stem cells.
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17
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Jin GZ, Park JH, Wall I, Kim HW. Isolation and culture of primary rat adipose derived stem cells using porous biopolymer microcarriers. Tissue Eng Regen Med 2016; 13:242-250. [PMID: 30603405 DOI: 10.1007/s13770-016-0040-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 03/22/2016] [Accepted: 03/28/2016] [Indexed: 01/16/2023] Open
Abstract
Adipose-derived stem cells (ADSCs) are an attractive source of material for mesenchymal stem cell research due to the abundance of adipose and relative ease of access compared with bone marrow. A key consideration for research is whether cell isolation methods can be improved, to reduce the process steps needed to isolate and expand cell material. In the current study, we used macroporous biopolymer microcarriers to isolate primary ADSCs. We found that the method was capable of isolating ADSCs that were subsequently capable of being transferred to culture dishes and expanded in vitro. Moreover, flow cytometry revealed that they expressed typical stem cell markers and were capable of undergoing tri-lineage differentiation. In summary, it is feasible to use biopolymer microcarriers for retrieval of viable ADSCs that retain identity markers of stem cell function.
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Affiliation(s)
- Guang-Zhen Jin
- 1Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan, 31116 Korea.,2Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Korea
| | - Jeong-Hui Park
- 1Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan, 31116 Korea.,2Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Korea
| | - Ivan Wall
- 1Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan, 31116 Korea.,3Department of Biochemical Engineering, University College London, Gordon Street, London, WC1H 0AH UK
| | - Hae-Won Kim
- 1Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan, 31116 Korea.,2Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Korea.,4Department of Biomaterials Science, Dankook University Dental College, Cheonan, Korea
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18
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Yang L, Zhang J, He J, Zhang J, Gan Z. Fabrication, hydrolysis and cell cultivation of microspheres from cellulose-graft-poly(l-lactide) copolymers. RSC Adv 2016. [DOI: 10.1039/c5ra25993b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cellulose-g-PLLA microspheres were fabricated for cell cultivation by a facile solvent evaporation method.
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Affiliation(s)
- Lili Yang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Jinming Zhang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Jiasong He
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Jun Zhang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Zhihua Gan
- State Key Laboratory of Organic–Inorganic Composites
- Beijing Laboratory of Biomaterials
- College of Life Science and Technology
- Beijing University of Chemical Technology
- Beijing 100029
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19
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Zhou X, Du Y, Wang X. Azo Polymer Microspheres with Photo-Manipulated Surface and Topographic Structure. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500435] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xinran Zhou
- Department of Chemical Engineering; Laboratory of Advanced Materials (MOE); Tsinghua University; Beijing 100084 P. R. China
| | - Yi Du
- Department of Chemical Engineering; Laboratory of Advanced Materials (MOE); Tsinghua University; Beijing 100084 P. R. China
| | - Xiaogong Wang
- Department of Chemical Engineering; Laboratory of Advanced Materials (MOE); Tsinghua University; Beijing 100084 P. R. China
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20
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Tuning Microparticle Porosity during Single Needle Electrospraying Synthesis via a Non-Solvent-Based Physicochemical Approach. Polymers (Basel) 2015. [DOI: 10.3390/polym7121531] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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21
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Preparation of nano/macroporous polycaprolactone microspheres for an injectable cell delivery system using room temperature ionic liquid and camphene. J Colloid Interface Sci 2015; 465:18-25. [PMID: 26641560 DOI: 10.1016/j.jcis.2015.11.055] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 11/20/2015] [Accepted: 11/20/2015] [Indexed: 01/06/2023]
Abstract
The nano/macroporous polycaprolactone (PCL) microspheres with cell active surfaces were developed as an injectable cell delivery system. Room temperature ionic liquid (RTIL) and camphene were used as a liquid mold and a porogen, respectively. Various-sized spheres of 244-601μm with pores of various size and shape of 0.02-100μm, were formed depending on the camphene/RTIL ratio (0.8-2.6). To give cell activity, the surface of porous microspheres were further modified with nerve growth factors (NGF) containing gelatin to give a thin NGF/gelatin layer, to which the neural progenitor cells (PC-12) attached and extended their neurites on to the surface layers of the microspheres. The developed microspheres may be potentially applicable as a neuronal cell delivery scaffold for neuron tissue engineering.
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22
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Shekaran A, Sim E, Tan KY, Chan JKY, Choolani M, Reuveny S, Oh S. Enhanced in vitro osteogenic differentiation of human fetal MSCs attached to 3D microcarriers versus harvested from 2D monolayers. BMC Biotechnol 2015; 15:102. [PMID: 26520400 PMCID: PMC4628389 DOI: 10.1186/s12896-015-0219-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 10/20/2015] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) are of great interest in bone regenerative medicine due to their osteogenic potential and trophic effects. However, challenges to large-scale production of MSCs can hinder the translation of MSC therapies. 3D Microcarrier (MC)-based MSC culture presents a scalable and cost-effective alternative to conventional methods of expansion in 2D monolayers. Furthermore, biodegradable MCs may allow for MC-bound MSC delivery without enzymatic harvest for selected applications such as bone healing. However, the effects of cell expansion on microcarriers and enzymatic cell harvest on MSC phenotype and osteogenic differential potential are not well understood. In this study, we characterized human fetal MSCs (hfMSCs) after expansion in 3D microcarrier spinner or 2D monolayer cultures. Following expansion, we compared osteogenic differentiation of cultures seeded with 3D MC-harvested, 3D MC-bound and conventional 2D monolayer (MNL)-harvested cells when cultured in osteogenic induction media on collagen-coated plates. RESULTS Fetal MSCs expanded on both 3D agitated Microcarriers (MC) and 2D Plastic static monolayer (MNL) cultures express high levels of MSC surface markers. MC-harvested hfMSCs displayed higher expression of early osteogenic genes but slower mineralization kinetics compared to MNL-harvested MSCs during osteogenic induction. However, in the comparison between MC-bound and MC-harvested hfMSCs, osteogenic genes were upregulated and mineralization kinetics was accelerated in the former condition. Importantly, 3D MC-bound hfMSCs expressed higher levels of osteogenic genes and displayed either higher or equivalent levels of mineralization, depending on the cell line, compared to the classical monolayer cultures use in the literature (MNL-harvested hfMSCs). CONCLUSION Beyond the processing and scalability advantages of the microcarrier culture, hfMSCs attached to MCs undergo robust osteogenic differentiation and mineralization compared to enzymatically harvested cells. Thus biodegradable/biocompatible MCs which can potentially be used for cell expansion as well as a scaffold for direct in vivo delivery of cells may have advantages over the current methods of monolayer-expansion and delivery post-harvest for bone regeneration applications.
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Affiliation(s)
- Asha Shekaran
- Stem Cell Group, Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, #06-01 Centros, Singapore, 138668, Singapore
| | - Eileen Sim
- Stem Cell Group, Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, #06-01 Centros, Singapore, 138668, Singapore
| | - Kah Yong Tan
- Stem Cell Group, Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, #06-01 Centros, Singapore, 138668, Singapore
| | - Jerry Kok Yen Chan
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119228, Singapore.,Cancer & Stem Cell Biology Program, Duke-NUS Graduate Medical School, Singapore, 169857, Singapore.,Department of Reproductive Medicine, KK Women's and Children's Hospital, Singapore, 229899, Singapore
| | - Mahesh Choolani
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119228, Singapore
| | - Shaul Reuveny
- Stem Cell Group, Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, #06-01 Centros, Singapore, 138668, Singapore
| | - Steve Oh
- Stem Cell Group, Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, #06-01 Centros, Singapore, 138668, Singapore.
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23
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Totaro A, Salerno A, Imparato G, Domingo C, Urciuolo F, Netti PA. PCL-HA microscaffolds for in vitro
modular bone tissue engineering. J Tissue Eng Regen Med 2015; 11:1865-1875. [DOI: 10.1002/term.2084] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 06/22/2015] [Accepted: 07/08/2015] [Indexed: 12/30/2022]
Affiliation(s)
- Alessandra Totaro
- Centre for Advanced Biomaterials for Health Care, CRIB Istituto Italiano di Tecnologia; Naples Italy
- Department of Chemical, Materials and Industrial Production (DICMAPI) and Interdisciplinary Research Centre on Biomaterials (CRIB); University of Naples Federico II; Italy
| | - Aurelio Salerno
- Institut de Ciència de Materials de Barcelona (ICMAB); Bellaterra Spain
| | - Giorgia Imparato
- Centre for Advanced Biomaterials for Health Care, CRIB Istituto Italiano di Tecnologia; Naples Italy
| | | | - Francesco Urciuolo
- Centre for Advanced Biomaterials for Health Care, CRIB Istituto Italiano di Tecnologia; Naples Italy
| | - Paolo Antonio Netti
- Centre for Advanced Biomaterials for Health Care, CRIB Istituto Italiano di Tecnologia; Naples Italy
- Department of Chemical, Materials and Industrial Production (DICMAPI) and Interdisciplinary Research Centre on Biomaterials (CRIB); University of Naples Federico II; Italy
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24
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Singh RK, Jin GZ, Mahapatra C, Patel KD, Chrzanowski W, Kim HW. Mesoporous silica-layered biopolymer hybrid nanofibrous scaffold: a novel nanobiomatrix platform for therapeutics delivery and bone regeneration. ACS APPLIED MATERIALS & INTERFACES 2015; 7:8088-8098. [PMID: 25768431 DOI: 10.1021/acsami.5b00692] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nanoscale scaffolds that characterize high bioactivity and the ability to deliver biomolecules provide a 3D microenvironment that controls and stimulates desired cellular responses and subsequent tissue reaction. Herein novel nanofibrous hybrid scaffolds of polycaprolactone shelled with mesoporous silica (PCL@MS) were developed. In this hybrid system, the silica shell provides an active biointerface, while the 3D nanoscale fibrous structure provides cell-stimulating matrix cues suitable for bone regeneration. The electrospun PCL nanofibers were coated with MS at controlled thicknesses via a sol-gel approach. The MS shell improved surface wettability and ionic reactions, involving substantial formation of bone-like mineral apatite in body-simulated medium. The MS-layered hybrid nanofibers showed a significant improvement in mechanical properties, in terms of both tensile strength and elastic modulus, as well as in nanomechanical surface behavior, which is favorable for hard tissue repair. Attachment, growth, and proliferation of rat mesenchymal stem cells were significantly improved on the hybrid scaffolds, and their osteogenic differentiation and subsequent mineralization were highly up-regulated by the hybrid scaffolds. Furthermore, the mesoporous surface of the hybrid scaffolds enabled the loading of a series of bioactive molecules, including small drugs and proteins at high levels. The release of these molecules was sustainable over a long-term period, indicating the capability of the hybrid scaffolds to deliver therapeutic molecules. Taken together, the multifunctional hybrid nanofibrous scaffolds are considered to be promising therapeutic platforms for stimulating stem cells and for the repair and regeneration of bone.
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Affiliation(s)
| | | | | | | | - Wojciech Chrzanowski
- §The Faculty of Pharmacy, The University of Sydney, Sydney, New South Wales 2006, Australia
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25
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Yuan S, Xiong G, He F, Jiang W, Liang B, Pehkonen S, Choong C. PCL microspheres tailored with carboxylated poly(glycidyl methacrylate)–REDV conjugates as conducive microcarriers for endothelial cell expansion. J Mater Chem B 2015; 3:8670-8683. [DOI: 10.1039/c5tb01836f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
PCL microspheres were functionalized with carboxylated PGMA-REDV conjugates by a combination of surface-initiated ATRP and click reaction.
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Affiliation(s)
- Shaojun Yuan
- Multiphase Mass Transfer & Reaction Engineering Lab
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China 610065
| | - Gordon Xiong
- Division of Materials Technology
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
- Singapore
| | - Fei He
- Multiphase Mass Transfer & Reaction Engineering Lab
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China 610065
| | - Wei Jiang
- Multiphase Mass Transfer & Reaction Engineering Lab
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China 610065
| | - Bin Liang
- Multiphase Mass Transfer & Reaction Engineering Lab
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China 610065
| | - Simo Pehkonen
- Department of Environmental Sciences
- University of Eastern Finland
- 70211 Kuopio
- Finland
| | - Cleo Choong
- Division of Materials Technology
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
- Singapore
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26
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Jin GZ, Park JH, Lee EJ, Wall IB, Kim HW. Utilizing PCL microcarriers for high-purity isolation of primary endothelial cells for tissue engineering. Tissue Eng Part C Methods 2014; 20:761-8. [PMID: 24552418 DOI: 10.1089/ten.tec.2013.0348] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Endothelial cells (ECs) are widely used in research, both for fundamental vascular biology research and for exploring strategies to create engineered vascularized tissues. Primary isolation often results in contamination from fibroblasts and vascular smooth muscle cells that can potentially affect function, particularly during the initial expansion period needed to establish the cell culture. In the current study, we explored the use of microcarriers to selectively isolate ECs from the lumen of intact vessels to enhance the purity during the isolation procedure. First, rat aortic explant culture was performed and after 2 weeks of culture, flow cytometry revealed that only 60% of the expanded cell population was positive for the endothelial marker CD31. Then, we employed a strategy to selectively isolate ECs and improve their purity by introducing microcarriers to the lumen of intact aorta. After 10 days, microcarriers were carefully removed and placed in cell culture dishes and at 15 days, a large near confluent layer of primary ECs populated the dish. Flow cytometry revealed that >90% of the expanded cells expressed CD31. Moreover, the cells were capable of forming tubule-like structures when plated onto Matrigel, confirming their function also. The highly modular and transportable nature of microcarriers has significant potential for isolating ECs at high purity, with minimal contamination.
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Affiliation(s)
- Guang-Zhen Jin
- 1 Institute of Tissue Regeneration Engineering (ITREN), Dankook University , Cheonan, Republic of Korea
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27
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A novel bio-safe phase separation process for preparing open-pore biodegradable polycaprolactone microparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 42:102-10. [PMID: 25063098 DOI: 10.1016/j.msec.2014.05.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 04/22/2014] [Accepted: 05/07/2014] [Indexed: 11/23/2022]
Abstract
Open-pore biodegradable microparticles are object of considerable interest for biomedical applications, particularly as cell and drug delivery carriers in tissue engineering and health care treatments. Furthermore, the engineering of microparticles with well definite size distribution and pore architecture by bio-safe fabrication routes is crucial to avoid the use of toxic compounds potentially harmful to cells and biological tissues. To achieve this important issue, in the present study a straightforward and bio-safe approach for fabricating porous biodegradable microparticles with controlled morphological and structural features down to the nanometer scale is developed. In particular, ethyl lactate is used as a non-toxic solvent for polycaprolactone particles fabrication via a thermal induced phase separation technique. The used approach allows achieving open-pore particles with mean particle size in the 150-250 μm range and a 3.5-7.9 m(2)/g specific surface area. Finally, the combination of thermal induced phase separation and porogen leaching techniques is employed for the first time to obtain multi-scaled porous microparticles with large external and internal pore sizes and potential improved characteristics for cell culture and tissue engineering. Samples were characterized to assess their thermal properties, morphology and crystalline structure features and textural properties.
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28
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Jin GZ, Park JH, Seo SJ, Kim HW. Dynamic cell culture on porous biopolymer microcarriers in a spinner flask for bone tissue engineering: a feasibility study. Biotechnol Lett 2014; 36:1539-48. [PMID: 24652549 DOI: 10.1007/s10529-014-1513-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Accepted: 02/27/2014] [Indexed: 11/28/2022]
Abstract
Porous microspherical carriers have great promise for cell culture and tissue engineering. Dynamic cultures enable more uniform cell population and effective differentiation than static cultures. Here we applied dynamic spinner flask culture for the loading and multiplication of cells onto porous biopolymer microcarriers. The abilities of the microcarriers to populate cells and to induce osteogenic differentiation were examined and the feasibility of in vivo delivery of the constructs was addressed. Over time, the porous microcarriers enabled cell adhesion and expansion under proper dynamic culture conditions. Osteogenic markers were substantially expressed by the dynamic cell cultures. The cell-cultured microcarriers implanted in the mouse subcutaneous tissue for 4 weeks showed excellent tissue compatibility, with minimal inflammatory signs and significant induction of bone tissues. This first report on dynamic culture of porous biopolymer microcarriers providing an effective tool for bone tissue engineering.
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Affiliation(s)
- Guang-Zhen Jin
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 330-714, Republic of Korea,
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29
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Park JH, Kim MK, El-Fiqi A, Seo SJ, Lee EJ, Kim JH, Kim HW. Bioactive and porous-structured nanocomposite microspheres effective for cell delivery: a feasibility study for bone tissue engineering. RSC Adv 2014. [DOI: 10.1039/c4ra02199a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
A novel nanocomposite microspherical cell-carrier system was developed to populate stem cells and to stimulate their osteogenesis for bone tissue engineering.
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Affiliation(s)
- Jeong-Hui Park
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Cheonan, Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
| | - Mi-Kyung Kim
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Cheonan, Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
| | - Ahmed El-Fiqi
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Cheonan, Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
| | - Seog-Jin Seo
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Cheonan, Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
| | - Eun-Jung Lee
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Cheonan, Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
| | - Joong-Hyun Kim
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Cheonan, Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
| | - Hae-Won Kim
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Cheonan, Republic of Korea
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
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30
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Kim MJ, Koh YH. Synthesis of aligned porous poly(ε-caprolactone) (PCL)/hydroxyapatite (HA) composite microspheres. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:2266-72. [DOI: 10.1016/j.msec.2013.01.051] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 12/28/2012] [Accepted: 01/22/2013] [Indexed: 11/16/2022]
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31
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Corrin AA, Ngai M, Walthers CM, Dunn JCY, Wu BM. Injectable macroporous microparticles for soft tissue augmentation. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2013; 2012:2428-31. [PMID: 23366415 DOI: 10.1109/embc.2012.6346454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Macroporous polymeric microparticles have been fabricated using a combination of particulate leaching and gas foaming techniques. Controlling the concentration of ammonium bicarbonate particles and the spin speed of the microemulsion in poly (ε-caprolactone) (PCL) yields a range of macroporous microparticles with interconnected pores (10-50 µm) that may promote cell and tissue ingrowth in vivo when implanted subcutaneously. This fabrication technique introduces a novel template which can be modified to meet a diverse set of material and biological specifications.
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Affiliation(s)
- Abigail A Corrin
- Bioengineering Department, University of California Los Angeles. Los Angeles, CA 90095, USA.
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32
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Park JH, Pérez RA, Jin GZ, Choi SJ, Kim HW, Wall IB. Microcarriers designed for cell culture and tissue engineering of bone. TISSUE ENGINEERING PART B-REVIEWS 2013; 19:172-90. [PMID: 23126371 DOI: 10.1089/ten.teb.2012.0432] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Microspherical particulates have been an attractive form of biomaterials that find usefulness in cell delivery and tissue engineering. A variety of compositions, including bioactive ceramics, degradable polymers, and their composites, have been developed into a microsphere form and have demonstrated the potential to fill defective bone and to populate tissue cells on curved matrices. To enhance the capacity of cell delivery, the conventional solid form of spheres is engineered to have either a porous structure to hold cells or a thin shell to in-situ encapsulate cells within the structure. Microcarriers can also be a potential reservoir system of bioactive molecules that have therapeutic effects in regulating cell behaviors. Due to their specific form, advanced technologies to culture cell-loaded microcarriers are required, such as simple agitation or shaking, spinner flask, and rotating chamber system. Here, we review systematically, from material design to culture technology, the microspherical carriers used for the delivery of cells and tissue engineering, particularly of bone.
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Affiliation(s)
- Jeong-Hui Park
- Biomaterials and Tissue Engineering Lab, Department of Nanobiomedical Science & WCU Research Center, Dankook University, Cheonan, South Korea
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33
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Preparation of open porous polycaprolactone microspheres and their applications as effective cell carriers in hydrogel system. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.07.045] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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34
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Zhang Q, Zhang Y, Lang M. Mild method for the agglomeration of dispersed polycaprolactone microspheres via a genipin-crosslinked gelatin hydrogel. J Appl Polym Sci 2012. [DOI: 10.1002/app.38563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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35
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Cryogenic grinding of electrospun poly-ε-caprolactone mesh submerged in liquid media. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012; 32:1366-74. [DOI: 10.1016/j.msec.2012.04.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Revised: 02/17/2012] [Accepted: 04/11/2012] [Indexed: 11/22/2022]
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36
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Jin GZ, Kim JH, Park JH, Choi SJ, Kim HW, Wall I. Performance of evacuated calcium phosphate microcarriers loaded with mesenchymal stem cells within a rat calvarium defect. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:1739-1748. [PMID: 22538727 DOI: 10.1007/s10856-012-4646-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2011] [Accepted: 04/10/2012] [Indexed: 05/31/2023]
Abstract
Tissue engineering of stem cells in concert with 3-dimensional (3D) scaffolds is a promising approach for regeneration of bone tissues. Bioactive ceramic microspheres are considered effective 3D stem cell carriers for bone tissue engineering. Here we used evacuated calcium phosphate (CaP) microspheres as the carrier of mesenchymal stem cells (MSCs) derived from rat bone marrow. The performance of the CaP-MSCs construct in bone formation within a rat calvarium defect was evaluated. MSCs were first cultured in combination with the evacuated microcarriers for 7 days in an osteogenic medium, which was then implanted in the 6 mm-diameter calvarium defect for 12 weeks. For comparison purposes, a control defect and cell-free CaP microspheres were also evaluated. The osteogenic differentiation of MSCs cultivated in the evacuated CaP microcarriers was confirmed by alkaline phosphatase staining and real time polymerase chain reaction. The in vivo results confirmed the highest bone formation was attained in the CaP microcarriers combined with MSCs, based on microcomputed tomography and histological assays. The results suggest that evacuated CaP microspheres have the potential to be useful as stem cell carriers for bone tissue engineering.
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Affiliation(s)
- Guang-Zhen Jin
- Institute of Tissue Regeneration Engineering, Dankook University, Cheonan, 330-714, Korea
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37
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Yang JH, Kim KH, You CK, Rautray TR, Kwon TY. Synthesis of spherical hydroxyapatite granules with interconnected pore channels using camphene emulsion. J Biomed Mater Res B Appl Biomater 2011; 99:150-7. [PMID: 21714080 DOI: 10.1002/jbm.b.31882] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Revised: 04/25/2011] [Accepted: 04/26/2011] [Indexed: 11/05/2022]
Abstract
The aim of this study was to fabricate porous spherical hydroxyapatite (HA) granules with interconnected pore channels for use as a bone graft substitute. Various weights of camphene porogen were mixed with nano-sized HA powder (camphene/HA = 0, 10, 30, 50, 70, and 90% w/w) and 10% gelatin aqueous solution then added to the mixture. The water-in-oil emulsion method was employed to obtain spherical-shaped granules, of which those 1000-2000 μm in diameter were selectively classified using a standard sieve set. Thermogravimetric analysis and X-ray diffraction were used to determine optimal sintering conditions. The sintered granules were characterized using field emission-scanning electron microscopy (FE-SEM), microcomputed tomography, and porosimetry. The pore size and porosity of spherical HA granules increased with the addition of camphene. Granules with a HA/camphene ratio of 90% (HG90) demonstrated macropores (>50 μm) with interconnected pore channels (porosity: 58.49%). In addition, FE-SEM examination of HG90 coated with polycaprolactone showed that the granule may hold promise as a drug delivery carrier. We concluded that these HG90 granules merit consideration as a bone graft substitute or drug delivery carrier in bone tissue engineering.
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Affiliation(s)
- Jung-Ho Yang
- Department of Medical and Biological Engineering, Graduate School, Kyungpook National University, Jung-gu, Daegu 700-412, Korea
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38
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Shi X, Jiang J, Sun L, Gan Z. Hydrolysis and biomineralization of porous PLA microspheres and their influence on cell growth. Colloids Surf B Biointerfaces 2011; 85:73-80. [DOI: 10.1016/j.colsurfb.2010.11.016] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Revised: 11/08/2010] [Accepted: 11/08/2010] [Indexed: 11/16/2022]
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39
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Martin Y, Eldardiri M, Lawrence-Watt DJ, Sharpe JR. Microcarriers and Their Potential in Tissue Regeneration. TISSUE ENGINEERING PART B-REVIEWS 2011; 17:71-80. [PMID: 21083436 DOI: 10.1089/ten.teb.2010.0559] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Yella Martin
- Blond McIndoe Research Foundation, Queen Victoria Hospital, East Grinstead, West Sussex, United kingdom
| | - Mohamed Eldardiri
- Blond McIndoe Research Foundation, Queen Victoria Hospital, East Grinstead, West Sussex, United kingdom
| | - Diana J. Lawrence-Watt
- Blond McIndoe Research Foundation, Queen Victoria Hospital, East Grinstead, West Sussex, United kingdom
| | - Justin R. Sharpe
- Blond McIndoe Research Foundation, Queen Victoria Hospital, East Grinstead, West Sussex, United kingdom
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Bang SH, Kim TH, Lee HY, Shin US, Kim HW. Nanofibrous-structured biopolymer scaffolds obtained by a phase separation with camphene and initial cellular events. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm03108a] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhang Y, Sun L, Jiang J, Zhang X, Ding W, Gan Z. Biodegradation-induced surface change of polymer microspheres and its influence on cell growth. Polym Degrad Stab 2010. [DOI: 10.1016/j.polymdegradstab.2010.01.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Vaida C, Mela P, Kunna K, Sternberg K, Keul H, Möller M. Microparticles for Drug Delivery Based on Functional Polycaprolactones with Enhanced Degradability: Loading of Hydrophilic and Hydrophobic Active Compounds. Macromol Biosci 2010; 10:925-33. [DOI: 10.1002/mabi.201000023] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Park JS, Hong SJ, Kim HY, Yu HS, Lee YI, Kim CH, Kwak SJ, Jang JH, Hyun JK, Kim HW. Evacuated Calcium Phosphate Spherical Microcarriers for Bone Regeneration. Tissue Eng Part A 2010; 16:1681-91. [DOI: 10.1089/ten.tea.2009.0624] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Jeong-Soo Park
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, South Korea
- Department of Biochemistry, College of Medicine, Dankook University, Cheonan, South Korea
| | - Seok-Jung Hong
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, South Korea
- Department of Nanobiomedical Science & WCU Research Center, Dankook University Graduate School, Cheonan, South Korea
| | - Hee-Young Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, South Korea
| | - Hye-Sun Yu
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, South Korea
- Department of Nanobiomedical Science & WCU Research Center, Dankook University Graduate School, Cheonan, South Korea
| | - Young Il Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, South Korea
- Department of Anatomy, College of Medicine, Dankook University, Cheonan, South Korea
| | - Chul-Hwan Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, South Korea
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Dankook University, Cheonan, South Korea
| | - Sahng-June Kwak
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, South Korea
- Department of Biochemistry, College of Medicine, Dankook University, Cheonan, South Korea
| | - Jun-Hyeog Jang
- Department of Biochemistry, College of Medicine, Inha University, Incheon, South Korea
| | - Jung Keun Hyun
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, South Korea
- Department of Nanobiomedical Science & WCU Research Center, Dankook University Graduate School, Cheonan, South Korea
- Department of Rehabilitation Medicine, College of Medicine, Dankook University, Cheonan, South Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, South Korea
- Department of Nanobiomedical Science & WCU Research Center, Dankook University Graduate School, Cheonan, South Korea
- Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan, South Korea
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Shi X, Sun L, Jiang J, Zhang X, Ding W, Gan Z. Biodegradable Polymeric Microcarriers with Controllable Porous Structure for Tissue Engineering. Macromol Biosci 2009; 9:1211-8. [DOI: 10.1002/mabi.200900224] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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