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Do AV, Khorsand B, Geary SM, Salem AK. 3D Printing of Scaffolds for Tissue Regeneration Applications. Adv Healthc Mater 2015; 4:1742-62. [PMID: 26097108 PMCID: PMC4597933 DOI: 10.1002/adhm.201500168] [Citation(s) in RCA: 474] [Impact Index Per Article: 52.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 04/26/2015] [Indexed: 12/21/2022]
Abstract
The current need for organ and tissue replacement, repair, and regeneration for patients is continually growing such that supply is not meeting demand primarily due to a paucity of donors as well as biocompatibility issues leading to immune rejection of the transplant. In order to overcome these drawbacks, scientists have investigated the use of scaffolds as an alternative to transplantation. These scaffolds are designed to mimic the extracellular matrix (ECM) by providing structural support as well as promoting attachment, proliferation, and differentiation with the ultimate goal of yielding functional tissues or organs. Initial attempts at developing scaffolds were problematic and subsequently inspired an interest in 3D printing as a mode for generating scaffolds. Utilizing three-dimensional printing (3DP) technologies, ECM-like scaffolds can be produced with a high degree of complexity, where fine details can be included at a micrometer level. In this Review, the criteria for printing viable and functional scaffolds, scaffolding materials, and 3DP technologies used to print scaffolds for tissue engineering are discussed. Creating biofunctional scaffolds could potentially help to meet the demand by patients for tissues and organs without having to wait or rely on donors for transplantation.
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Affiliation(s)
- Anh-Vu Do
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, 52242, USA
| | - Behnoush Khorsand
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, 52242, USA
| | - Sean M Geary
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, 52242, USA
| | - Aliasger K Salem
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, 52242, USA
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Bajpai S, Chand N, Soni S. Controlled release of anti-diabetic drug Gliclazide from poly(caprolactone)/poly(acrylic acid) hydrogels. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2015; 26:947-62. [DOI: 10.1080/09205063.2015.1068547] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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53
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Chitosan surface modification of fully interconnected 3D porous poly(ε-caprolactone) by the LbL approach. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.03.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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54
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Jones D, Park D, Anghelina M, Pécot T, Machiraju R, Xue R, Lannutti JJ, Thomas J, Cole SL, Moldovan L, Moldovan NI. Actin grips: circular actin-rich cytoskeletal structures that mediate the wrapping of polymeric microfibers by endothelial cells. Biomaterials 2015; 52:395-406. [PMID: 25818446 PMCID: PMC4418805 DOI: 10.1016/j.biomaterials.2015.02.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 02/03/2015] [Indexed: 01/13/2023]
Abstract
Interaction of endothelial-lineage cells with three-dimensional substrates was much less studied than that with flat culture surfaces. We investigated the in vitro attachment of both mature endothelial cells (ECs) and of less differentiated EC colony-forming cells to poly-ε-capro-lactone (PCL) fibers with diameters in 5-20 μm range ('scaffold microfibers', SMFs). We found that notwithstanding the poor intrinsic adhesiveness to PCL, both cell types completely wrapped the SMFs after long-term cultivation, thus attaining a cylindrical morphology. In this system, both EC types grew vigorously for more than a week and became increasingly more differentiated, as shown by multiplexed gene expression. Three-dimensional reconstructions from multiphoton confocal microscopy images using custom software showed that the filamentous (F) actin bundles took a conspicuous ring-like organization around the SMFs. Unlike the classical F-actin-containing stress fibers, these rings were not associated with either focal adhesions or intermediate filaments. We also demonstrated that plasma membrane boundaries adjacent to these circular cytoskeletal structures were tightly yet dynamically apposed to the SMFs, for which reason we suggest to call them 'actin grips'. In conclusion, we describe a particular form of F-actin assembly with relevance for cytoskeletal organization in response to biomaterials, for endothelial-specific cell behavior in vitro and in vivo, and for tissue engineering.
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Affiliation(s)
- Desiree Jones
- Department of Internal Medicine, The Ohio State University, Columbus, OH, 43210, USA
| | - DoYoung Park
- Department of Computer Sciences and Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Mirela Anghelina
- Department of Internal Medicine, The Ohio State University, Columbus, OH, 43210, USA
| | - Thierry Pécot
- Department of Internal Medicine, The Ohio State University, Columbus, OH, 43210, USA; Department of Computer Sciences and Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Raghu Machiraju
- Department of Computer Sciences and Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Ruipeng Xue
- Department of Materials Sciences, The Ohio State University, Columbus, OH, 43210, USA
| | - John J Lannutti
- Department of Materials Sciences, The Ohio State University, Columbus, OH, 43210, USA
| | - Jessica Thomas
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Sara L Cole
- Campus Microscopy and Imaging Facility, The Ohio State University, Columbus, OH, 43210, USA
| | - Leni Moldovan
- Department of Internal Medicine, The Ohio State University, Columbus, OH, 43210, USA
| | - Nicanor I Moldovan
- Department of Internal Medicine, The Ohio State University, Columbus, OH, 43210, USA.
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55
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Xue J, Shi R, Niu Y, Gong M, Coates P, Crawford A, Chen D, Tian W, Zhang L. Fabrication of drug-loaded anti-infective guided tissue regeneration membrane with adjustable biodegradation property. Colloids Surf B Biointerfaces 2015; 135:846-854. [PMID: 25847456 DOI: 10.1016/j.colsurfb.2015.03.031] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 02/09/2015] [Accepted: 03/10/2015] [Indexed: 12/31/2022]
Abstract
For guided tissue regeneration (GTR) membrane, synchronization of the membrane biodegradation rate and tissue regeneration rate is important. Besides, the major reason for GTR membrane failure in clinical application is infection which can be prevented by loading anti-bacterial drug. To realize the consistency in membrane degradation rate and tissue regeneration rate of the anti-infective membrane, we developed metronidazole-loaded electrospun poly(ɛ-caprolactone)-gelatin nanofiber membranes with different poly(ɛ-caprolactone)/gelatin ratios (95:5, 90:10, 80:20, 70:30, 60:40, and 50:50). Homogeneous nanofibers were successfully fabricated. The mechanical strength of the membranes increased with the poly(ɛ-caprolactone) content, while the hydrophilicity decreased. The controlled and sustained release of metronidazole from all the membranes prevented the colonization of anaerobic bacteria. At all poly(ɛ-caprolactone)/gelatin ratios, all the membranes presented good biocompatibility while the increase of gelatin content resulted in enhanced cell adhesion and proliferation. Subcutaneous implantation in rabbits for 8 months demonstrated that all the membranes showed good biocompatibility without infection. Both in vitro and in vivo results showed that the biodegradation rate of the membranes was accelerated with the increase of gelatin content. The biodegradation rate and biocompatibility of the membranes can be adjusted by changing the PCL/gelatin ratio. The optimal membrane can be chosen based on the patient and tissue type to realize the synchronization of membrane degradation with tissue regeneration for the best treatment effect.
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Affiliation(s)
- Jiajia Xue
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Rui Shi
- Laboratory of Bone Tissue Engineering of Beijing Research Institute of Traumatology and Orthopaedics, Beijing 100035, China
| | - Yuzhao Niu
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Min Gong
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Phil Coates
- School of Engineering, Design & Technology, Bradford University, Bradford, West Yorkshire BD7 1DP, UK
| | - Aileen Crawford
- Centre for Biomaterials and Tissue Engineering, University of Sheffield, Sheffield, South Yorkshire S3 7HQ, UK
| | - Dafu Chen
- Laboratory of Bone Tissue Engineering of Beijing Research Institute of Traumatology and Orthopaedics, Beijing 100035, China
| | - Wei Tian
- Department of Spine Surgery of Beijing Jishuitan Hospital, The Fourth Clinical Medical College of Peking University, Beijing 100035, China.
| | - Liqun Zhang
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China.
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56
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van Uden S, Silva-Correia J, Correlo VM, Oliveira JM, Reis RL. Custom-tailored tissue engineered polycaprolactone scaffolds for total disc replacement. Biofabrication 2015; 7:015008. [DOI: 10.1088/1758-5090/7/1/015008] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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57
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Shi R, Xue J, Wang H, Wang R, Gong M, Chen D, Zhang L, Tian W. Fabrication and evaluation of a homogeneous electrospun PCL–gelatin hybrid membrane as an anti-adhesion barrier for craniectomy. J Mater Chem B 2015; 3:4063-4073. [PMID: 32262628 DOI: 10.1039/c5tb00261c] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
An electrospun PCL–gelatin membrane's excellent anti-adhesive properties, biocompatibility and adjustable biodegradable rate make it compatible for applying as an anti-adhesion barrier for craniotomy.
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Affiliation(s)
- Rui Shi
- Laboratory of Bone Tissue Engineering of Beijing Research Institute of Traumatology and Orthopaedics
- Beijing 100035
- China
| | - Jiajia Xue
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Hanbin Wang
- Department of neurosurgery of Beijing JiShuiTan Hospital
- The Fourth Clinical Medical College of Peking University
- Beijing 100035
- China
| | - Renxian Wang
- Department of Spine Surgery of Beijing JiShuiTan Hospital
- The Fourth Clinical Medical College of Peking University
- Beijing 100035
- China
| | - Min Gong
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Dafu Chen
- Laboratory of Bone Tissue Engineering of Beijing Research Institute of Traumatology and Orthopaedics
- Beijing 100035
- China
| | - Liqun Zhang
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Wei Tian
- Department of Spine Surgery of Beijing JiShuiTan Hospital
- The Fourth Clinical Medical College of Peking University
- Beijing 100035
- China
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58
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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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59
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Jeon HJ, Lee H, Kim GH. Fabrication and characterization of nanoscale-roughened PCL/collagen micro/nanofibers treated with plasma for tissue regeneration. J Mater Chem B 2015; 3:3279-3287. [DOI: 10.1039/c5tb00057b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nanoscale roughened poly(ε-caprolactone)/collagen fibrous mat was fabricated by the selective plasma-treatment method using a template with 800 nm holes.
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Affiliation(s)
- Ho Jun Jeon
- Department of Biomechatronic Engineering
- College of Biotechnology and Bioengineering
- Sungkyunkwan University (SKKU)
- Suwon
- South Korea
| | - Hyeongjin Lee
- Department of Biomechatronic Engineering
- College of Biotechnology and Bioengineering
- Sungkyunkwan University (SKKU)
- Suwon
- South Korea
| | - Geun Hyung Kim
- Department of Biomechatronic Engineering
- College of Biotechnology and Bioengineering
- Sungkyunkwan University (SKKU)
- Suwon
- South Korea
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60
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Xu W, Wei X, Wei K, Cao X, Zhong S. A mesoporous silicon/poly-(dl-lactic-co-glycolic) acid microsphere for long time anti-tuberculosis drug delivery. Int J Pharm 2014; 476:116-23. [DOI: 10.1016/j.ijpharm.2014.09.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 09/15/2014] [Accepted: 09/26/2014] [Indexed: 12/01/2022]
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61
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Li W, Liu Y, Leng J. Shape memory polymer nanocomposite with multi-stimuli response and two-way reversible shape memory behavior. RSC Adv 2014. [DOI: 10.1039/c4ra10716k] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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62
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Kim JH, Linh NTB, Min YK, Lee BT. Surface modification of porous polycaprolactone/biphasic calcium phosphate scaffolds for bone regeneration in rat calvaria defect. J Biomater Appl 2014; 29:624-35. [PMID: 24939961 DOI: 10.1177/0885328214539822] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
In this study, polycaprolactone scaffolds fabricated by a salt-leaching process were loaded with biphasic calcium phosphate successfully to improve the osteoconductivity in bone regeneration. The surface of polycaprolactone/biphasic calcium phosphate scaffolds was aminolyzed by 1,6-hexamethylenediamine to introduce amino groups onto the surface, which was verified qualitatively by ninhyrin staining. Collagen was further immobilized on the aminolyzed porous polycaprolactone via N-ethyl-N'-(3-dimethylaminopropy) carbodiimide hydrochloride/hydroxy-2,5-dioxopyrolidine-3-sulfonic acid sodium cross-linking. The pore size of polycaprolactone/biphasic calcium phosphate-collagen scaffolds was 200-300 µm, which was suitable for bone in-growth. The X-ray photoelectron spectroscopy confirmed the coupling of collagen immobilized on the surface of polycaprolactone/biphasic calcium phosphate. In vitro results demonstrated that the spreading and viability of MC3T3-E1 cells were remarkably improved in the polycaprolactone/biphasic calcium phosphate-collagen scaffolds. The in vivo study was carried out by implanting the porous polycaprolactone, polycaprolactone/biphasic calcium phosphate, and polycaprolactone/biphasic calcium phosphate-collagen to the skulls of rats. Although the addition of biphasic calcium phosphate particles in the polycaprolactone scaffolds does not have a strong effect on the new bone formation, the immobilization of collagen on the polycaprolactone/biphasic calcium phosphate scaffolds significantly improved the bone regeneration even though the implantation time was short, 6 weeks. The present results provide more evidence that functionalizing polycaprolactone with biphasic calcium phosphate and collagen may be a feasible way to improve the osteoconduction in bone regeneration.
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Affiliation(s)
- Ji-Hyun Kim
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, South Korea
| | - Nguyen T B Linh
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, South Korea Institute of Tissue Regeneration, Soonchunhyang University, Cheonan, South Korea
| | - Young K Min
- Department of Physiology, College of Medicine, Soonchunhyang University, Cheonan, South Korea
| | - Byong-Taek Lee
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, South Korea Institute of Tissue Regeneration, Soonchunhyang University, Cheonan, South Korea
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63
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64
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Zheng W, Guan D, Teng Y, Wang Z, Zhang S, Wang L, Kong D, Zhang J. Functionalization of PCL fibrous membrane with RGD peptide by a naturally occurring condensation reaction. ACTA ACUST UNITED AC 2014. [DOI: 10.1007/s11434-014-0336-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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65
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Wang L, Sun Y, Wang J, Li Z. Assembly of Gold Nanoparticles on Electrospun Polymer Nanofiber Film for SERS Applications. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.1.30] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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66
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Li Y, Ceylan M, Shrestha B, Wang H, Lu QR, Asmatulu R, Yao L. Nanofibers support oligodendrocyte precursor cell growth and function as a neuron-free model for myelination study. Biomacromolecules 2013; 15:319-26. [PMID: 24304204 DOI: 10.1021/bm401558c] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Nanofiber-based scaffolds may simultaneously provide immediate contact guidance for neural regeneration and act as a vehicle for therapeutic cell delivery to enhance axonal myelination. Additionally, nanofibers can serve as a neuron-free model to study myelination of oligodendrocytes. In this study, we fabricated nanofibers using a polycaprolactone and gelatin copolymer. The ratio of the gelatin component in the fibers was confirmed by energy dispersive X-ray spectroscopy. The addition of gelatin to the polycaprolactone (PCL) for nanofiber fabrication decreased the contact angle of the electrospun fibers. We showed that both polycaprolactone nanofibers as well as polycaprolactone and gelatin copolymer nanofibers can support oligodendrocyte precursor cell (OPC) growth and differentiation. OPCs maintained their phenotype and viability on nanofibers and were induced to differentiate into oligodendrocytes. The differentiated oligodendrocytes extend their processes along the nanofibers and ensheathed the nanofibers. Oligodendrocytes formed significantly more myelinated segments on the PCL and gelatin copolymer nanofibers than those on PCL nanofibers alone.
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Affiliation(s)
- Yongchao Li
- Departments of †Biological Sciences and §Mechanical Engineering, Wichita State University , Wichita, Kansas, United States
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67
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Regis S, Youssefian S, Jassal M, Phaneuf M, Rahbar N, Bhowmick S. Integrin α5β1-mediated attachment of NIH/3T3 fibroblasts to fibronectin adsorbed onto electrospun polymer scaffolds. POLYM ENG SCI 2013. [DOI: 10.1002/pen.23809] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Shawn Regis
- Biomedical Engineering and Biotechnology program; University of Massachusetts Dartmouth; 285 Old Westport Road North Dartmouth Massachusetts 02747
| | - Sina Youssefian
- Department of Mechanical Engineering; Worcester Polytechnic Institute; 100 Institute Road Worcester Massachusetts 01609
| | - Manisha Jassal
- Biomedical Engineering and Biotechnology program; University of Massachusetts Dartmouth; 285 Old Westport Road North Dartmouth Massachusetts 02747
| | - Matthew Phaneuf
- BioSurfaces; Inc. 200 Homer Avenue, Unit 1P Ashland Massachusetts 01721
| | - Nima Rahbar
- Department of Civil and Environmental Engineering; Worcester Polytechnic Institute; 100 Institute Road Worcester Massachusetts 01609
| | - Sankha Bhowmick
- Biomedical Engineering and Biotechnology program; University of Massachusetts Dartmouth; 285 Old Westport Road North Dartmouth Massachusetts 02747
- Department of Mechanical Engineering; University of Massachusetts Dartmouth; 285 Old Westport Road North Dartmouth Massachusetts 02747
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68
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Billiet T, Van Gasse B, Gevaert E, Cornelissen M, Martins JC, Dubruel P. Quantitative contrasts in the photopolymerization of acrylamide and methacrylamide-functionalized gelatin hydrogel building blocks. Macromol Biosci 2013; 13:1531-45. [PMID: 24000135 DOI: 10.1002/mabi.201300143] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Revised: 06/16/2013] [Indexed: 11/09/2022]
Abstract
The synthesis and evaluation of gelatin acrylamide as an alternative to the well-established gelatin methacrylamide are reported. High-resolution magic angle spinning NMR is used for the quantitative determination of the chemical cross-linking density. The gelatin acrylamide precursors reveal enhanced cross-linking in terms of reactivity and double bond conversion, resulting in stronger networks. Remarkably, even at very low double bond conversions, ≈5%, gel fractions of ≈40% are obtained. The cross-linked networks are also reviewed in the framework of the rubber elasticity and thermodynamic swelling theories to estimate important nanostructural properties. Preliminary cell tests revealed that highly viable (>90%) cell-laden constructs are obtained.
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Affiliation(s)
- Thomas Billiet
- Polymer Chemistry & Biomaterials Research Group, Ghent University, Krijgslaan 281 S4 Bis, Ghent, 9000, Belgium
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69
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Sisson AL, Ekinci D, Lendlein A. The contemporary role of ε-caprolactone chemistry to create advanced polymer architectures. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.04.045] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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70
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Van Bael S, Desmet T, Chai YC, Pyka G, Dubruel P, Kruth JP, Schrooten J. In vitro cell-biological performance and structural characterization of selective laser sintered and plasma surface functionalized polycaprolactone scaffolds for bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:3404-12. [DOI: 10.1016/j.msec.2013.04.024] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Revised: 03/02/2013] [Accepted: 04/10/2013] [Indexed: 01/04/2023]
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71
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Selcan Gungor-Ozkerim P, Balkan T, Kose GT, Sezai Sarac A, Kok FN. Incorporation of growth factor loaded microspheres into polymeric electrospun nanofibers for tissue engineering applications. J Biomed Mater Res A 2013; 102:1897-908. [DOI: 10.1002/jbm.a.34857] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 05/31/2013] [Accepted: 06/25/2013] [Indexed: 11/09/2022]
Affiliation(s)
- P. Selcan Gungor-Ozkerim
- Molecular Biology-Genetics and Biotechnology Program; Istanbul Technical University; MOBGAM Istanbul 34469 Turkey
| | - Timucin Balkan
- Istanbul Technical University; Department of Chemistry & Polymer Science and Technology; Istanbul 34469 Turkey
| | - Gamze T. Kose
- Yeditepe University; Department of Genetics and Bioengineering; Istanbul 34755 Turkey
- BIOMATEN Center of Excellence in Biomaterials and Tissue Engineering; Middle East Technical University; Ankara Turkey
| | - A. Sezai Sarac
- Istanbul Technical University; Department of Chemistry & Polymer Science and Technology; Istanbul 34469 Turkey
| | - Fatma N. Kok
- Molecular Biology-Genetics and Biotechnology Program; Istanbul Technical University; MOBGAM Istanbul 34469 Turkey
- BIOMATEN Center of Excellence in Biomaterials and Tissue Engineering; Middle East Technical University; Ankara Turkey
- Istanbul Technical University; Molecular Biology and Genetics Department; Istanbul 34469 Turkey
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72
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Kanitkar M, Jaiswal A, Deshpande R, Bellare J, Kale VP. Enhanced growth of endothelial precursor cells on PCG-matrix facilitates accelerated, fibrosis-free, wound healing: a diabetic mouse model. PLoS One 2013; 8:e69960. [PMID: 23922871 PMCID: PMC3724903 DOI: 10.1371/journal.pone.0069960] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Accepted: 06/13/2013] [Indexed: 11/19/2022] Open
Abstract
Diabetes mellitus (DM)-induced endothelial progenitor cell (EPC) dysfunction causes impaired wound healing, which can be rescued by delivery of large numbers of 'normal' EPCs onto such wounds. The principal challenges herein are (a) the high number of EPCs required and (b) their sustained delivery onto the wounds. Most of the currently available scaffolds either serve as passive devices for cellular delivery or allow adherence and proliferation, but not both. This clearly indicates that matrices possessing both attributes are 'the need of the day' for efficient healing of diabetic wounds. Therefore, we developed a system that not only allows selective enrichment and expansion of EPCs, but also efficiently delivers them onto the wounds. Murine bone marrow-derived mononuclear cells (MNCs) were seeded onto a PolyCaprolactone-Gelatin (PCG) nano-fiber matrix that offers a combined advantage of strength, biocompatibility wettability; and cultured them in EGM2 to allow EPC growth. The efficacy of the PCG matrix in supporting the EPC growth and delivery was assessed by various in vitro parameters. Its efficacy in diabetic wound healing was assessed by a topical application of the PCG-EPCs onto diabetic wounds. The PCG matrix promoted a high-level attachment of EPCs and enhanced their growth, colony formation, and proliferation without compromising their viability as compared to Poly L-lactic acid (PLLA) and Vitronectin (VN), the matrix and non-matrix controls respectively. The PCG-matrix also allowed a sustained chemotactic migration of EPCs in vitro. The matrix-effected sustained delivery of EPCs onto the diabetic wounds resulted in an enhanced fibrosis-free wound healing as compared to the controls. Our data, thus, highlight the novel therapeutic potential of PCG-EPCs as a combined 'growth and delivery system' to achieve an accelerated fibrosis-free healing of dermal lesions, including diabetic wounds.
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Affiliation(s)
- Meghana Kanitkar
- National Centre for Cell Science, NCCS Complex, University of Pune Campus, Ganeshkhind, Pune, Maharashtra, India
| | - Amit Jaiswal
- Department of Chemical Engineering, Indian Institute of Technology-Bombay, Powai, Mumbai, Maharashtra, India
| | - Rucha Deshpande
- National Centre for Cell Science, NCCS Complex, University of Pune Campus, Ganeshkhind, Pune, Maharashtra, India
| | - Jayesh Bellare
- Department of Chemical Engineering, Indian Institute of Technology-Bombay, Powai, Mumbai, Maharashtra, India
| | - Vaijayanti P. Kale
- National Centre for Cell Science, NCCS Complex, University of Pune Campus, Ganeshkhind, Pune, Maharashtra, India
- * E-mail:
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73
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Regis S, Youssefian S, Jassal M, Phaneuf MD, Rahbar N, Bhowmick S. Fibronectin adsorption on functionalized electrospun polycaprolactone scaffolds: Experimental and molecular dynamics studies. J Biomed Mater Res A 2013; 102:1697-706. [DOI: 10.1002/jbm.a.34843] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 06/04/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Shawn Regis
- Biomedical Engineering and Biotechnology Program; University of Massachusetts Dartmouth; North Dartmouth Massachusetts 02747
| | - Sina Youssefian
- Department of Mechanical Engineering; Worcester Polytechnic Institute; Worcester Massachusetts 01609
| | - Manisha Jassal
- Biomedical Engineering and Biotechnology Program; University of Massachusetts Dartmouth; North Dartmouth Massachusetts 02747
| | | | - Nima Rahbar
- Department of Civil and Environmental Engineering; Worcester Polytechnic Institute; Worcester Massachusetts 01609
| | - Sankha Bhowmick
- Biomedical Engineering and Biotechnology Program; University of Massachusetts Dartmouth; North Dartmouth Massachusetts 02747
- Department of Mechanical Engineering; University of Massachusetts Dartmouth; North Dartmouth Massachusetts 02747
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74
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Shen Q, Shi P, Gao M, Yu X, Liu Y, Luo L, Zhu Y. Progress on materials and scaffold fabrications applied to esophageal tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:1860-6. [DOI: 10.1016/j.msec.2013.01.064] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 01/01/2013] [Accepted: 01/26/2013] [Indexed: 12/29/2022]
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75
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Yang P, Yang W. Surface Chemoselective Phototransformation of C–H Bonds on Organic Polymeric Materials and Related High-Tech Applications. Chem Rev 2013; 113:5547-94. [PMID: 23614481 DOI: 10.1021/cr300246p] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Peng Yang
- Key Laboratory
of Applied Surface
and Colloid Chemistry, Ministry of Education, College of Chemistry
and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Wantai Yang
- The State Key Laboratory of
Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing
100029, China
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76
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Li Q, Wang Z, Zhang S, Zheng W, Zhao Q, Zhang J, Wang L, Wang S, Kong D. Functionalization of the surface of electrospun poly(epsilon-caprolactone) mats using zwitterionic poly(carboxybetaine methacrylate) and cell-specific peptide for endothelial progenitor cells capture. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:1646-53. [DOI: 10.1016/j.msec.2012.12.074] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 12/18/2012] [Accepted: 12/20/2012] [Indexed: 12/16/2022]
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77
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Jiang CP, Chen YY, Hsieh MF, Lee HM. Solid freeform fabrication and in-vitro response of osteoblast cells of mPEG-PCL-mPEG bone scaffolds. Biomed Microdevices 2013; 15:369-79. [DOI: 10.1007/s10544-013-9740-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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78
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Liu P, Song J. Sulfobetaine as a zwitterionic mediator for 3D hydroxyapatite mineralization. Biomaterials 2013; 34:2442-54. [PMID: 23332320 DOI: 10.1016/j.biomaterials.2012.12.029] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Accepted: 12/22/2012] [Indexed: 11/17/2022]
Abstract
Both positively and negatively charged residues play pivotal roles in recruiting precursor ions or ion clusters, and lowering interfacial energy in natural biomineralization process. Synergistic utilization of opposite charges, however, has rarely been implemented in the design of cytocompatible synthetic scaffolds promoting hydroxyapatite (HA)-mineralization and osteointegration. We report the use of cytocompatible zwitterionic sulfobetaine ligands to enable 3-dimensional in vitro mineralization of HA across covalently crosslinked hydrogels. The overall charge-neutral zwitterionic hydrogel effectively recruited oppositely charged precursor ions while overcame excessive swelling exhibited by anionic and cationic hydrogels under physiological conditions, resulting in denser and structurally well-integrated mineralized composites. Further controls over the size, content, and spatial distribution of the mineral domains within the zwitterionic hydrogel are accomplished by facile adjustments of hydrogel crosslinking densities and the supersaturation rate governing heterogeneous mineral nucleation and growth. These findings should inspire many creative uses of zwitterionic polymers and polymer coatings for skeletal tissue repair and regeneration.
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Affiliation(s)
- Pingsheng Liu
- Department of Orthopedics & Physical Rehabilitation, University of Massachusetts Medical School, Worcester, MA 01655, USA
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79
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Zhu Y, Mao Z, Gao C. Control over the Gradient Differentiation of Rat BMSCs on a PCL Membrane with Surface-Immobilized Alendronate Gradient. Biomacromolecules 2013; 14:342-9. [DOI: 10.1021/bm301523p] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yang Zhu
- MOE of Key
Laboratory of Macromolecular
Synthesis and Functionalization, Department of Polymer Science and
Engineering, Zhejiang University, Hangzhou
310027, China
| | - Zhengwei Mao
- MOE of Key
Laboratory of Macromolecular
Synthesis and Functionalization, Department of Polymer Science and
Engineering, Zhejiang University, Hangzhou
310027, China
| | - Changyou Gao
- MOE of Key
Laboratory of Macromolecular
Synthesis and Functionalization, Department of Polymer Science and
Engineering, Zhejiang University, Hangzhou
310027, China
- State Key
Laboratory of Diagnosis
and Treatment for Infectious Diseases, First Affiliated Hospital,
College of Medicine, Zhejiang University, Hangzhou 310003, China
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80
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Exploring the Future of Hydrogels in Rapid Prototyping: A Review on Current Trends and Limitations. SPRINGER SERIES IN BIOMATERIALS SCIENCE AND ENGINEERING 2013. [DOI: 10.1007/978-1-4614-4328-5_9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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81
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Chhaya MP, Melchels FP, Wiggenhauser PS, Schantz JT, Hutmacher DW. Breast Reconstruction Using Biofabrication-Based Tissue Engineering Strategies. Biofabrication 2013. [DOI: 10.1016/b978-1-4557-2852-7.00010-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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82
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Luk JZ, Cooper-White J, Rintoul L, Taran E, Grøndahl L. Functionalised polycaprolactone films and 3D scaffolds via gamma irradiation-induced grafting. J Mater Chem B 2013; 1:4171-4181. [DOI: 10.1039/c3tb20267d] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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83
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Zhang Y, Li M, Zhao M, Li D. Influence of polar functional groups introduced by COOH+ implantation on cell growth and anticoagulation of MWCNTs. J Mater Chem B 2013; 1:5543-5549. [DOI: 10.1039/c3tb21011a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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84
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85
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The survival and proliferation of fibroblasts on biocomposites containing genetically modified flax fibers: An in vitro study. Ann Anat 2012; 194:513-7. [DOI: 10.1016/j.aanat.2011.12.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Revised: 11/29/2011] [Accepted: 12/13/2011] [Indexed: 11/23/2022]
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86
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Yang Z, Tu Q, Wang J, Huang N. The role of heparin binding surfaces in the direction of endothelial and smooth muscle cell fate and re-endothelialization. Biomaterials 2012; 33:6615-25. [DOI: 10.1016/j.biomaterials.2012.06.055] [Citation(s) in RCA: 103] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Accepted: 06/22/2012] [Indexed: 11/25/2022]
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87
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Dash TK, Konkimalla VB. Polymeric Modification and Its Implication in Drug Delivery: Poly-ε-caprolactone (PCL) as a Model Polymer. Mol Pharm 2012; 9:2365-79. [DOI: 10.1021/mp3001952] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Tapan K. Dash
- School of Biological Sciences,
National Institute of
Science Education and Research, Institute of Physics Campus, Sainik
School, Sachivalaya marg, Bhubaneswar-751005, India
| | - V. Badireenath Konkimalla
- School of Biological Sciences,
National Institute of
Science Education and Research, Institute of Physics Campus, Sainik
School, Sachivalaya marg, Bhubaneswar-751005, India
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88
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Kersemans K, Desmet T, Vanhove C, Dubruel P, De Vos F. Radiolabeled gelatin type B analogues can be used for non-invasive visualisation and quantification of protein coatings on 3D porous implants. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:1961-1969. [PMID: 22569737 DOI: 10.1007/s10856-012-4668-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Accepted: 04/27/2012] [Indexed: 05/31/2023]
Abstract
This study covers the quantification of the covalent attachment of gelatin type B (GelB) and the subsequent adsorption of Fibronectin (Fn) on poly-ε-caprolactone (PCL) surfaces, functionalised with 2-aminoethyl methacrylate (AEMA) by means of post-plasma UV-irradiation grafting. As typical surface characterisation tools do not allow quantification of deposited amounts of GelB or Fn, radiolabeled analogues were used for direct measurement of the amount of immobilized material. Bolton-Hunter GelB (BHG) and Fn were radioiodinated with (131)I and (125)I respectively and S-Hynic GelB (SHG) was labeled with (99m)Tc. Immobilisation of (131)I-BHG or (99m)Tc-SHG on both PCL and PCL-AEMA scaffolds was performed in analogy with earlier work. SPECT images on scaffolds coated with (99m)Tc-SHG conjugates were acquired on a U-SPECT II camera. There was a clear difference in the amount of deposited (131)I-BHG between blanco and AEMA-grafted PCL on 2D samples. No significant differences in immobilization behaviour were observed between (99m)Tc-SHG and (131)I-BHG. Subsequent immobilisation of Fn was successful and depended on the amounts of deposited GelB. SPECT imaging on cylindrical 3D scaffolds confirmed these findings and showed that the amount of immobilized (99m)Tc-SHG was depth dependant. The architecture of the scaffolds strongly influences the distribution of GelB within these structures. Furthermore, there is a clear difference in the homogeneity of the protein coating when different GelB immobilization protocols were applied. This study shows that radiolabeled compounds are a rapid and accurate tool in the quantitative and qualitative evaluation of the biofunctionalisation of AEMA grafted PCL scaffolds.
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Affiliation(s)
- Ken Kersemans
- Laboratory for Radiopharmacy, Gent University, Ghent, Belgium.
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89
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Han N, Johnson JK, Bradley PA, Parikh KS, Lannutti JJ, Winter JO. Cell attachment to hydrogel-electrospun fiber mat composite materials. J Funct Biomater 2012; 3:497-513. [PMID: 24955629 PMCID: PMC4031005 DOI: 10.3390/jfb3030497] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Revised: 07/19/2012] [Accepted: 07/20/2012] [Indexed: 02/06/2023] Open
Abstract
Hydrogels, electrospun fiber mats (EFMs), and their composites have been extensively studied for tissue engineering because of their physical and chemical similarity to native biological systems. However, while chemically similar, hydrogels and electrospun fiber mats display very different topographical features. Here, we examine the influence of surface topography and composition of hydrogels, EFMs, and hydrogel-EFM composites on cell behavior. Materials studied were composed of synthetic poly(ethylene glycol) (PEG) and poly(ethylene glycol)-poly(ε-caprolactone) (PEGPCL) hydrogels and electrospun poly(caprolactone) (PCL) and core/shell PCL/PEGPCL constituent materials. The number of adherent cells and cell circularity were most strongly influenced by the fibrous nature of materials (e.g., topography), whereas cell spreading was more strongly influenced by material composition (e.g., chemistry). These results suggest that cell attachment and proliferation to hydrogel-EFM composites can be tuned by varying these properties to provide important insights for the future design of such composite materials.
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Affiliation(s)
- Ning Han
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA.
| | - Jed K Johnson
- Department of Materials and Science Engineering, The Ohio State University, Columbus, OH 43210, USA.
| | - Patrick A Bradley
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, USA.
| | - Kunal S Parikh
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA.
| | - John J Lannutti
- Department of Materials and Science Engineering, The Ohio State University, Columbus, OH 43210, USA.
| | - Jessica O Winter
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA.
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90
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Billiet T, Vandenhaute M, Schelfhout J, Van Vlierberghe S, Dubruel P. A review of trends and limitations in hydrogel-rapid prototyping for tissue engineering. Biomaterials 2012; 33:6020-41. [PMID: 22681979 DOI: 10.1016/j.biomaterials.2012.04.050] [Citation(s) in RCA: 680] [Impact Index Per Article: 56.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Accepted: 04/21/2012] [Indexed: 12/12/2022]
Abstract
The combined potential of hydrogels and rapid prototyping technologies has been an exciting route in developing tissue engineering scaffolds for the past decade. Hydrogels represent to be an interesting starting material for soft, and lately also for hard tissue regeneration. Their application enables the encapsulation of cells and therefore an increase of the seeding efficiency of the fabricated structures. Rapid prototyping techniques on the other hand, have become an elegant tool for the production of scaffolds with the purpose of cell seeding and/or cell encapsulation. By means of rapid prototyping, one can design a fully interconnected 3-dimensional structure with pre-determined dimensions and porosity. Despite this benefit, some of the rapid prototyping techniques are not or less suitable for the generation of hydrogel scaffolds. In this review, we therefore give an overview on the different rapid prototyping techniques suitable for the processing of hydrogel materials. A primary distinction will be made between (i) laser-based, (ii) nozzle-based, and (iii) printer-based systems. Special attention will be addressed to current trends and limitations regarding the respective techniques. Each of these techniques will be further discussed in terms of the different hydrogel materials used so far. One major drawback when working with hydrogels is the lack of mechanical strength. Therefore, maintaining and improving the mechanical integrity of the processed scaffolds has become a key issue regarding 3-dimensional hydrogel structures. This limitation can either be overcome during or after processing the scaffolds, depending on the applied technology and materials.
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Affiliation(s)
- Thomas Billiet
- Polymer Chemistry & Biomaterials Research Group, Ghent University, Krijgslaan 281 S4 Bis, Ghent 9000, Belgium
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91
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Gupta B, Krishnanand K, Deopura BL, Atthoff B. Surface modification of polycaprolactone monofilament by low pressure oxygen plasma. J Appl Polym Sci 2012. [DOI: 10.1002/app.37760] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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92
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Immobilization of gelatin onto poly(glycidyl methacrylate)-grafted polycaprolactone substrates for improved cell-material interactions. Biointerphases 2012; 7:30. [PMID: 22589073 DOI: 10.1007/s13758-012-0030-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Accepted: 04/05/2012] [Indexed: 10/28/2022] Open
Abstract
To enhance the cytocompatibility of polycaprolactone (PCL), cell-adhesive gelatin is covalently immobilized onto the PCL film surface via two surface-modified approaches: a conventional chemical immobilization process and a surface-initiated atom transfer radical polymerization (ATRP) process. Kinetics studies reveal that the polymer chain growth from the PCL film using the ATRP process is formed in a controlled manner, and that the amount of immobilized gelatin increases with an increasing concentration of epoxide groups on the grafted P(GMA) brushes. In vitro cell adhesion and proliferation studies demonstrate that cell affinity and growth are significantly improved by the immobilization of gelatin on PCL film surfaces, and that this improvement is positively correlated to the amount of covalently immobilized gelatin. With the versatility of the ATRP process and tunable grafting efficacy of gelatin, this study offers a suitable methodology for the functionalization of biodegradable polyesters scaffolds to improve cell-material interactions.
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93
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Liu Z, Deng X, Wang M, Chen J, Zhang A, Gu Z, Zhao C. BSA-Modified Polyethersulfone Membrane: Preparation, Characterization and Biocompatibility. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 20:377-97. [DOI: 10.1163/156856209x412227] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Zongbin Liu
- a College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
| | - Xiaopei Deng
- b College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
| | - Meng Wang
- c College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
| | - Jingxia Chen
- d College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
| | - Aimin Zhang
- e College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
| | - Zhongwei Gu
- f National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, People's Republic of China
| | - Changsheng Zhao
- g College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China; National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, People's Republic of China
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94
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Tığlı RS, Kazaroğlu NM, Mavış B, Gümüşderelioğlu M. Cellular Behavior on Epidermal Growth Factor (EGF)-Immobilized PCL/Gelatin Nanofibrous Scaffolds. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:207-23. [DOI: 10.1163/092050609x12591500475424] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- R. Seda Tığlı
- a Hacettepe University, Chemical Engineering Department, 06800, Beytepe, Ankara, Turkey
| | - N. Merve Kazaroğlu
- b Başkent University, Biomedical Engineering Department, 06810, Bağlıca, Ankara, Turkey
| | - Bora Mavış
- c Hacetepe University, Mechanical Engineering Department, 06800, Beytepe, Ankara, Turkey
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95
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Zhu Y, Mao Z, Shi H, Gao C. In-depth study on aminolysis of poly(ɛ-caprolactone): Back to the fundamentals. Sci China Chem 2012. [DOI: 10.1007/s11426-012-4540-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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96
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Regis S, Jassal M, Mukherjee N, Bayon Y, Scarborough N, Bhowmick S. Altering surface characteristics of polypropylene mesh via sodium hydroxide treatment. J Biomed Mater Res A 2012; 100:1160-7. [PMID: 22337661 DOI: 10.1002/jbm.a.34057] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Revised: 12/01/2011] [Accepted: 12/06/2011] [Indexed: 11/07/2022]
Abstract
Incisional hernias represent a serious and common complication following laparotomy. The use of synthetic (e.g. polypropylene) meshes to aid repair of these hernias has considerably reduced recurrence rates. While polypropylene is biocompatible and has a long successful clinical history in treating hernias and preventing reherniation, this material may suffer some limitations, particularly in challenging patients at risk of wound failure due to, for example, an exaggerated inflammation reaction, delayed wound healing, and infection. Surface modification of the polypropylene mesh without sacrificing its mechanical properties, critical for hernia repair, represents one way to begin to address these clinical complications. Our hypothesis is treatment of a proprietary polypropylene mesh with sodium hydroxide (NaOH) will increase in vitro NIH/3T3 cell attachment, predictive of earlier and improved cell colonization and tissue integration of polypropylene materials. Our goal is to achieve this altered surface functionality via enhanced removal of chemicals/oils used during material synthesis without compromising the mechanical properties of the mesh. We found that NaOH treatment does not appear to compromise the mechanical strength of the material, despite roughly a 10% decrease in fiber diameter. The treatment increases in vitro NIH/3T3 cell attachment within the first 72 h and this effect is sustained up to 7 days in vitro. This research demonstrates that sodium hydroxide treatment is an efficient way to modify the surface of polypropylene hernia meshes without losing the mechanical integrity of the material. This simple procedure could also allow the attachment of a variety of biomolecules to the polypropylene mesh that may aid in reducing the complications associated with polypropylene meshes today.
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Affiliation(s)
- Shawn Regis
- Biomedical Engineering and Biotechnology Program, University of Massachusetts Dartmouth, North Dartmouth, Massachusetts 02747, USA.
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97
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Desmet T, Poleunis C, Delcorte A, Dubruel P. Double protein functionalized poly-ε-caprolactone surfaces: in depth ToF-SIMS and XPS characterization. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:293-305. [PMID: 22203514 DOI: 10.1007/s10856-011-4527-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Accepted: 12/09/2011] [Indexed: 05/31/2023]
Abstract
In biomaterial research, great attention has focussed on the immobilization of biomolecules with the aim to increase cell-adhesive properties of materials. Many different strategies can be applied. In previously published work, our group focussed on the treatment of poly-ε-caprolactone (PCL) films by an Ar-plasma, followed by the grafting of 2-aminoethyl methacrylate (AEMA) under UV-irradiation. The functional groups introduced, enabled the subsequent covalent immobilisation of gelatin. The obtained coating was finally applied for the physisorption of fibronectin. The successful PCL surface functionalization was preliminary confirmed using XPS, wettability studies, AFM and SEM. In the present article, we report on an in-depth characterization of the materials developed using ToF-SIMS and XPS analysis. The homogeneous AEMA grafting and the subsequent protein coating steps could be confirmed by both XPS and ToF-SIMS. Using ToF-SIMS, it was possible to demonstrate the presence of polymethacrylates on the surface. From peak deconvoluted XPS results (C- and N-peak), the presence of proteins could be confirmed. Using ToF-SIMS, different positive ions, correlating to specific amino-acids could be identified. Importantly, the gelatin and the fibronectin coatings could be qualitatively distinguished. Interestingly for biomedical applications, ethylene oxide sterilization did not affect the surface chemical composition. This research clearly demonstrates the complementarities of XPS and ToF-SIMS in biomedical surface modification research.
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Affiliation(s)
- T Desmet
- Polymer Chemistry & Biomaterials Research Group, Ghent University, Ghent, Belgium
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98
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Yuan S, Xiong G, Wang X, Zhang S, Choong C. Surface modification of polycaprolactone substrates using collagen-conjugated poly(methacrylic acid) brushes for the regulation of cell proliferation and endothelialisation. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31213a] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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99
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Hu Y, Zhao NN, Li JS, Yang WT, Xu FJ. Temperature-responsive porous polycaprolactone-based films via surface-initiated ATRP for protein delivery. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm34919a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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100
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Hepatic differentiation from human mesenchymal stem cells on a novel nanofiber scaffold. Cell Mol Biol Lett 2011; 17:89-106. [PMID: 22207333 PMCID: PMC6275739 DOI: 10.2478/s11658-011-0040-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Accepted: 12/15/2011] [Indexed: 12/26/2022] Open
Abstract
The emerging fields of tissue engineering and biomaterials have begun to provide potential treatment options for liver failure. The goal of the present study is to investigate the ability of a poly L-lactic acid (PLLA) nanofiber scaffold to support and enhance hepatic differentiation of human bone marrow-derived mesenchymal stem cells (hMSCs). A scaffold composed of poly L-lactic acid and collagen was fabricated by the electrospinning technique. After characterizing isolated hMSCs, they were seeded onto PLLA nanofiber scaffolds and induced to differentiate into a hepatocyte lineage. The mRNA levels and protein expression of several important hepatic genes were determined using RT-PCR, immunocytochemistry and ELISA. Flow cytometry revealed that the isolated bone marrow-derived stem cells were positive for hMSC-specific markers CD73, CD44, CD105 and CD166 and negative for hematopoietic markers CD34 and CD45. The differentiation of these stem cells into adipocytes and osteoblasts demonstrated their multipotency. Scanning electron microscopy showed adherence of cells in the nanofiber scaffold during differentiation towards hepatocytes. Our results showed that expression levels of liver-specific markers such as albumin, α-fetoprotein, and cytokeratins 8 and 18 were higher in differentiated cells on the nanofibers than when cultured on plates. Importantly, liver functioning serum proteins, albumin and α-1 antitrypsin were secreted into the culture medium at higher levels by the differentiated cells on the nanofibers than on the plates, demonstrating that our nanofibrous scaffolds promoted and enhanced hepatic differentiation under our culture conditions. Our results show that the engineered PLLA nanofibrous scaffold is a conducive matrix for the differentiation of MSCs into functional hepatocyte-like cells. This represents the first step for the use of this nanofibrous scaffold for culture and differentiation of stem cells that may be employed for tissue engineering and cell-based therapy applications.
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