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Brauer E, Herrera A, Fritsche-Guenther R, Görlitz S, Leemhuis H, Knaus P, Kirwan JA, Duda GN, Petersen A. Mechanical heterogeneity in a soft biomaterial niche controls BMP2 signaling. Biomaterials 2024; 309:122614. [PMID: 38788455 DOI: 10.1016/j.biomaterials.2024.122614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 05/08/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024]
Abstract
The extracellular matrix is known to impact cell function during regeneration by modulating growth factor signaling. However, how the mechanical properties and structure of biomaterials can be used to optimize the cellular response to growth factors is widely neglected. Here, we engineered a macroporous biomaterial to study cellular signaling in environments that mimic the mechanical stiffness but also the mechanical heterogeneity of native extracellular matrix. We found that the mechanical interaction of cells with the heterogeneous and non-linear deformation properties of soft matrices (E < 5 kPa) enhances BMP-2 growth factor signaling with high relevance for tissue regeneration. In contrast, this effect is absent in homogeneous hydrogels that are often used to study cell responses to mechanical cues. Live cell imaging and in silico finite element modeling further revealed that a subpopulation of highly active, fast migrating cells is responsible for most of the material deformation, while a second, less active population experiences this deformation as an extrinsic mechanical stimulation. At an overall low cell density, the active cell population dominates the process, suggesting that it plays a particularly important role in early tissue healing scenarios where cells invade tissue defects or implanted biomaterials. Taken together, our findings demonstrate that the mechanical heterogeneity of the natural extracellular matrix environment plays an important role in triggering regeneration by endogenously acting growth factors. This suggests the inclusion of such mechanical complexity as a design parameter in future biomaterials, in addition to established parameters such as mechanical stiffness and stress relaxation.
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Affiliation(s)
- Erik Brauer
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Germany; Berlin School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Germany; BIH Center for Regenerative Therapies, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Germany
| | - Aaron Herrera
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Germany; Berlin School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Germany; BIH Center for Regenerative Therapies, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Germany
| | - Raphaela Fritsche-Guenther
- BIH Metabolomics Platform, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Sophie Görlitz
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Germany; Berlin School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Germany; BIH Center for Regenerative Therapies, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Germany
| | | | - Petra Knaus
- Berlin School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Germany; Freie Universität Berlin, Institute for Chemistry and Biochemistry, Berlin, Germany
| | - Jennifer A Kirwan
- BIH Metabolomics Platform, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Georg N Duda
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Germany; Berlin School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Germany; BIH Center for Regenerative Therapies, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Germany
| | - Ansgar Petersen
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Germany; Berlin School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Germany; BIH Center for Regenerative Therapies, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Germany.
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Zhang Q, Chen J, Zhang T, Liu D, Long X, Li J, Jiang L, Wang Y, Tan H. A Bilayer Polyurethane Patch with Sustained Growth Factor Release and Antibacteria for Re-epithelization of Large-Scale Oral Mucosal Defects. ACS APPLIED MATERIALS & INTERFACES 2024; 16:44561-44574. [PMID: 39152904 DOI: 10.1021/acsami.4c09841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/19/2024]
Abstract
In the field of oral and maxillofacial surgery, extensive oral soft-tissue injuries occur repeatedly in clinical practice; however, effective restorative materials are lacking. In this study, a biodegradable waterborne polyurethane patch featuring a mucosa bionic bilayer structure is presented. This patch consists of a porous scaffold layer that faces the lesion, incorporating a polydopamine coating to achieve sustained release of epidermal growth factors (EGFs) for mucosal defect reconstruction. Additionally, there is a dense barrier layer toward the oral cavity loaded with silver nanoparticles, which prevents bacteria from entering the wound and simultaneously acts as a physical barrier. This patch can sustainably release EGF in vitro for 2 weeks, thereby facilitating the proliferation and migration of HaCaT and L929 cells, while effectively killing common oral cavity bacteria. In a rabbit buccal mucosal full-thickness defect model, the patch demonstrates better efficacy than the clinical benchmark, decellularized extracellular matrix (dECM). It effectively reduces wound inflammation and significantly upregulates gene expression associated with epithelialization by activating the EGF/epidermal growth factor receptor (EGFR) pathway. These mechanisms promote the proliferation, differentiation, and migration of epithelial/keratinocyte cells, ultimately expediting mucosal defect healing and wound closure.
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Affiliation(s)
- Qiao Zhang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610000, China
| | - Jinlin Chen
- Yu-Yue Pathology Scientific Research Center, Jinfeng Laboratory, Chongqing 401329, China
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X center of materials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Tianyu Zhang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Dan Liu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xirui Long
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X center of materials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Jiehua Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X center of materials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Lu Jiang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yanchao Wang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610000, China
| | - Hong Tan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X center of materials, Sichuan University, Chengdu, Sichuan 610065, China
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Development and Characterization of Functional Polylactic Acid/Chitosan Porous Scaffolds for Bone Tissue Engineering. Polymers (Basel) 2022; 14:polym14235079. [PMID: 36501473 PMCID: PMC9739485 DOI: 10.3390/polym14235079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022] Open
Abstract
In this study, we developed and characterized various open-cell composite scaffolds for bone regeneration. These scaffolds were made from Polylactic acid (PLA) as the scaffold matrix biopolymeric phase, and chitosan (CS) and chitosan-grafted-PLA (CS-g-PLA) copolymer as the dispersed biopolymeric phase. As a first step, successful grafting of PLA onto CS backbone was executed and confirmed by both FTIR and XPS. Mechanical characterization confirmed that adding CS or CS-g-PLA to the intrinsically rigid PLA made their corresponding PLA/CS and PLA/CS-g-PLA composite scaffolds more flexible under compression. This flexibility was higher for the latter due to the improved compatibility between PLA and CS-g-PLA copolymer. The hydrolytic stability of both PLA/CS and PLA/CS-g-PLA composite scaffolds inside phosphate-buffered saline (PBS) solution, as well as MG-63 osteoblast cell adhesion and proliferation inside both scaffolds, were characterized. The corresponding results revealed that PLA/CS composite scaffolds showed hydrolytic degradation due to the cationic properties of CS. However, modified PLA/CS-g-PLA scaffolds were hydrolytically stable due to the improved interfacial adhesion between the PLA matrix and CS-g-PLA copolymer. Finally, biological characterization was done for both PLA/CS and PLA/CS-g-PLA composite scaffolds. Contrarily to what was observed for uncompatibilized PLA/CS scaffolds, compatibilized PLA/CS-g-PLA scaffolds showed a high MG-63 osteoblast cell proliferation after three and five days of cell culture. Moreover, it was observed that cell proliferation increased with CS-g-PLA content. This suggests that the PLA/CS-g-PLA composite scaffolds could be a potential solution for bone regeneration.
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Shen H, Hu X. Growth factor loading on aliphatic polyester scaffolds. RSC Adv 2021; 11:6735-6747. [PMID: 35423177 PMCID: PMC8694921 DOI: 10.1039/d0ra10232f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 02/01/2021] [Indexed: 12/20/2022] Open
Abstract
Cells, scaffolds and growth factors are three elements of tissue engineering. The success of tissue engineering methods relies on precise and dynamic interactions between cells, scaffolds and growth factors. Aliphatic polyester scaffolds are promising tissue engineering scaffolds that possess good mechanical properties, low immunogenicity, non-toxicity, and adjustable degradation rates. How growth factors can be loaded onto/into aliphatic polyester scaffolds and be constantly released with the required bioactivity to regulate cell growth and promote defect tissue repair and regeneration has become the main concern of tissue engineering researchers. In this review, the existing main methods of loading growth factors on aliphatic polyester scaffolds, the release behavior of loaded growth factors and their positive effects on cell, tissue repair and regeneration are introduced. Advantages and shortcomings of each method also are mentioned. It is still a great challenge to control the release of loaded growth factors at a certain time and at a concentration simulating the biological environment of native tissue.
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Affiliation(s)
- Hong Shen
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China +86-10-62581241
| | - Xixue Hu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology Beijing 100190 China +86-10-82545676
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Dorcemus DL, Kim HS, Nukavarapu SP. Gradient scaffold with spatial growth factor profile for osteochondral interface engineering. Biomed Mater 2020; 16. [PMID: 33291092 DOI: 10.1088/1748-605x/abd1ba] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 12/08/2020] [Indexed: 11/11/2022]
Abstract
Osteochondral (OC) matrix design poses a significant engineering challenge due to the complexity involved with bone-cartilage interfaces. To better facilitate the regeneration of OC tissue, we developed and evaluated a biodegradable matrix with uniquely arranged bone and cartilage supporting phases: a poly(lactic-co-glycolic) acid (PLGA) template structure with a porosity gradient along its longitudinal axis uniquely integrated with hyaluronic acid hydrogel. Micro-CT scanning and imaging confirmed the formation of an inverse gradient matrix. Hydroxyapatite was added to the PLGA template which was then plasma-treated to increase hydrophilicity and growth factor affinity. An osteogenic growth factor (bone morphogenetic protein 2; BMP-2) was loaded onto the template scaffold via adsorption, while a chondrogenic growth factor (transforming growth factor beta 1; TGF-β1) was incorporated into the hydrogel phase. Confocal microscopy of the growth factor loaded matrix confirmed the spatial distribution of the two growth factors, with chondrogenic factor confined to the cartilaginous portion and osteogenic factor present throughout the scaffold. We observed spatial differentiation of human mesenchymal stem cells (hMSCs) into cartilage and bone cells in the scaffolds in vitro: cartilaginous regions were marked by increased glycosaminoglycan production, and osteogenesis was seen throughout the graft by alizarin red staining. In a dose-dependent study of BMP-2, hMSC pellet cultures with TGF-β1 and BMP-2 showed synergistic effects on chondrogenesis. These results indicate that development of an inverse gradient matrix can spatially distribute two different growth factors to facilitate chondrogenesis and osteogenesis along different portions of a scaffold, which are key steps needed for formation of an osteochondral interface.
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Affiliation(s)
- Deborah Leonie Dorcemus
- Department of Biomedical Engineering, University of Connecticut, 260 Glenbrook Road, Unit 3247, Storrs, Connecticut, 06269, UNITED STATES
| | - Hyun Sung Kim
- Department of Biomedical Engineering, University of Connecticut, 260 Glenbrook Road, Unit 3247, Storrs, Connecticut, 06269, UNITED STATES
| | - Syam Prasad Nukavarapu
- Department of Biomedical Engineering, University of Connecticut, 260 Glenbrook Road, Unit 3247, Storrs, Connecticut, 06269, UNITED STATES
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Chen YF, Goodheart C, Rua D. The Body's Cellular and Molecular Response to Protein-Coated Medical Device Implants: A Review Focused on Fibronectin and BMP Proteins. Int J Mol Sci 2020; 21:ijms21228853. [PMID: 33238458 PMCID: PMC7700595 DOI: 10.3390/ijms21228853] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 12/24/2022] Open
Abstract
Recent years have seen a marked rise in implantation into the body of a great variety of devices: hip, knee, and shoulder replacements, pacemakers, meshes, glucose sensors, and many others. Cochlear and retinal implants are being developed to restore hearing and sight. After surgery to implant a device, adjacent cells interact with the implant and release molecular signals that result in attraction, infiltration of the tissue, and attachment to the implant of various cell types including monocytes, macrophages, and platelets. These cells release additional signaling molecules (chemokines and cytokines) that recruit tissue repair cells to the device site. Some implants fail and require additional revision surgery that is traumatic for the patient and expensive for the payer. This review examines the literature for evidence to support the possibility that fibronectins and BMPs could be coated on the implants as part of the manufacturing process so that the proteins could be released into the tissue surrounding the implant and improve the rate of successful implantation.
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Affiliation(s)
- Yi-Fan Chen
- Center for Devices and Radiological Health, Food and Drug Administration, Silver Spring, MD 20993, USA;
| | | | - Diego Rua
- Center for Devices and Radiological Health, Food and Drug Administration, Silver Spring, MD 20993, USA;
- Correspondence:
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7
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Enriquez-Ochoa D, Robles-Ovalle P, Mayolo-Deloisa K, Brunck MEG. Immobilization of Growth Factors for Cell Therapy Manufacturing. Front Bioeng Biotechnol 2020; 8:620. [PMID: 32637403 PMCID: PMC7317031 DOI: 10.3389/fbioe.2020.00620] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 05/20/2020] [Indexed: 12/21/2022] Open
Abstract
Cell therapy products exhibit great therapeutic potential but come with a deterring price tag partly caused by their costly manufacturing processes. The development of strategies that lead to cost-effective cell production is key to expand the reach of cell therapies. Growth factors are critical culture media components required for the maintenance and differentiation of cells in culture and are widely employed in cell therapy manufacturing. However, they are expensive, and their common use in soluble form is often associated with decreased stability and bioactivity. Immobilization has emerged as a possible strategy to optimize growth factor use in cell culture. To date, several immobilization techniques have been reported for attaching growth factors onto a variety of biomaterials, but these have been focused on tissue engineering. This review briefly summarizes the current landscape of cell therapy manufacturing, before describing the types of chemistry that can be used to immobilize growth factors for cell culture. Emphasis is placed to identify strategies that could reduce growth factor usage and enhance bioactivity. Finally, we describe a case study for stem cell factor.
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Affiliation(s)
| | | | - Karla Mayolo-Deloisa
- Tecnologico de Monterrey, School of Engineering and Science, FEMSA Biotechnology Center, Monterrey, Mexico
| | - Marion E. G. Brunck
- Tecnologico de Monterrey, School of Engineering and Science, FEMSA Biotechnology Center, Monterrey, Mexico
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8
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Han L, Jiang Y, Lv C, Gan D, Wang K, Ge X, Lu X. Mussel-inspired hybrid coating functionalized porous hydroxyapatite scaffolds for bone tissue regeneration. Colloids Surf B Biointerfaces 2019; 179:470-478. [DOI: 10.1016/j.colsurfb.2019.04.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 03/20/2019] [Accepted: 04/10/2019] [Indexed: 02/06/2023]
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9
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Synthesis and characterization of a novel freeze‐dried silanated chitosan bone tissue engineering scaffold reinforced with electrospun hydroxyapatite nanofiber. POLYM INT 2019. [DOI: 10.1002/pi.5833] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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10
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Bu Y, Ma J, Bei J, Wang S. Surface Modification of Aliphatic Polyester to Enhance Biocompatibility. Front Bioeng Biotechnol 2019; 7:98. [PMID: 31131273 PMCID: PMC6509149 DOI: 10.3389/fbioe.2019.00098] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 04/16/2019] [Indexed: 11/16/2022] Open
Abstract
Aliphatic polyester is a kind of biodegradable implantable polymers, which shows promise as scaffolds in tissue engineering, drug carrier, medical device, and so on. To further improve its biocompatibility and cell affinity, many techniques have been used to modify the surface of the polyester. In the present paper, the key factors of influencing biocompatibility of aliphatic polyester were illuminated, and the different surface modification methods such as physical, chemical, and plasma processing methods were also demonstrated. The advantages and disadvantages of each method were also discussed with the hope that this review can serve as a resource for selection of surface modification of aliphatic products.
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Affiliation(s)
- Yazhong Bu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
| | - Junxuan Ma
- Orthopedic Research Institute, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, China
| | - Jianzhong Bei
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
| | - Shenguo Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
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11
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Wu J, Li L, Fu C, Yang F, Jiao Z, Shi X, Ito Y, Wang Z, Liu Q, Zhang P. Micro-porous polyetheretherketone implants decorated with BMP-2 via phosphorylated gelatin coating for enhancing cell adhesion and osteogenic differentiation. Colloids Surf B Biointerfaces 2018; 169:233-241. [DOI: 10.1016/j.colsurfb.2018.05.027] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 03/20/2018] [Accepted: 05/13/2018] [Indexed: 11/26/2022]
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12
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Kowalczewski CJ, Saul JM. Biomaterials for the Delivery of Growth Factors and Other Therapeutic Agents in Tissue Engineering Approaches to Bone Regeneration. Front Pharmacol 2018; 9:513. [PMID: 29896102 PMCID: PMC5986909 DOI: 10.3389/fphar.2018.00513] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 04/27/2018] [Indexed: 12/14/2022] Open
Abstract
Bone fracture followed by delayed or non-union typically requires bone graft intervention. Autologous bone grafts remain the clinical "gold standard". Recently, synthetic bone grafts such as Medtronic's Infuse Bone Graft have opened the possibility to pharmacological and tissue engineering strategies to bone repair following fracture. This clinically-available strategy uses an absorbable collagen sponge as a carrier material for recombinant human bone morphogenetic protein 2 (rhBMP-2) and a similar strategy has been employed by Stryker with BMP-7, also known as osteogenic protein-1 (OP-1). A key advantage to this approach is its "off-the-shelf" nature, but there are clear drawbacks to these products such as edema, inflammation, and ectopic bone growth. While there are clinical challenges associated with a lack of controlled release of rhBMP-2 and OP-1, these are among the first clinical examples to wed understanding of biological principles with biochemical production of proteins and pharmacological principles to promote tissue regeneration (known as regenerative pharmacology). After considering the clinical challenges with such synthetic bone grafts, this review considers the various biomaterial carriers under investigation to promote bone regeneration. This is followed by a survey of the literature where various pharmacological approaches and molecular targets are considered as future strategies to promote more rapid and mature bone regeneration. From the review, it should be clear that pharmacological understanding is a key aspect to developing these strategies.
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Affiliation(s)
| | - Justin M Saul
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, United States
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13
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Liu P, Sun L, Liu P, Yu W, Zhang Q, Zhang W, Ma J, Liu P, Shen J. Surface modification of porous PLGA scaffolds with plasma for preventing dimensional shrinkage and promoting scaffold–cell/tissue interactions. J Mater Chem B 2018; 6:7605-7613. [DOI: 10.1039/c8tb02374c] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An effective strategy for simultaneously tackling the dimensional shrinkage of a highly porous PLGA scaffold and improving the scaffold–tissue integration.
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Affiliation(s)
- Peiming Liu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Bio-functional Materials
- School of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
| | - Lian Sun
- Jiangsu Key Laboratory of Oral Diseases
- Nanjing Medical University
- Nanjing 210029
- P. R. China
| | - Pingying Liu
- School of Materials Science and Engineering
- Jingdezhen Ceramic Institute
- Jingdezhen 333403
- P. R. China
- School of Chemistry and Chemical Engineering
| | - Wenqian Yu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Bio-functional Materials
- School of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
| | - Qianhui Zhang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Bio-functional Materials
- School of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
| | - Weibing Zhang
- Jiangsu Key Laboratory of Oral Diseases
- Nanjing Medical University
- Nanjing 210029
- P. R. China
| | - Jing Ma
- School of Chemistry and Chemical Engineering
- Key Laboratory of Mesoscopic Chemistry of MOE
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Pingsheng Liu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Bio-functional Materials
- School of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
| | - Jian Shen
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Bio-functional Materials
- School of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
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14
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Pot MW, de Kroon LMG, van der Kraan PM, van Kuppevelt TH, Daamen WF. Unidirectional BMP2-loaded collagen scaffolds induce chondrogenic differentiation. ACTA ACUST UNITED AC 2017; 13:015007. [PMID: 29165318 DOI: 10.1088/1748-605x/aa8960] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Microfracture surgery may be improved by the implantation of unidirectional collagen scaffolds that provide a template for mesenchymal stem cells to regenerate cartilage. Incorporation of growth factors in unidirectional scaffolds may further enhance cartilage regeneration. In scaffolds, immobilization of growth factors is required to prolong in vivo activity, to limit diffusion and to reduce the amount of growth factor needed for safe clinical application. We investigated the immobilization of bone morphogenetic protein 2 (BMP2) to unidirectional collagen scaffolds and the effect on in vitro chondrogenesis. C3H10T1/2 cells were seeded on unidirectional collagen scaffolds with and without covalently attached heparin, and with and without incubation with BMP2 (1 and 10 μg), or with BMP2 present in the culture medium (10-200 ng ml-1). Culturing was for 2 weeks and readout parameters included histology, immunohistochemistry, biochemical analysis and molecular biological analysis. The unidirectional pores facilitated the distribution of C3H10T1/2 cells and matrix formation throughout scaffolds. The effective dose of medium supplementation with BMP2 was 100 ng ml-1 (total exposure 1 μg BMP2), and similar production of cartilage-specific molecules chondroitin sulfate (CS) and type II collagen was found for scaffolds pre-incubated with 10 μg BMP2. Pre-incubation with 1 μg BMP2 resulted in less cartilage matrix formation. The conjugation of heparin to the scaffolds resulted in more CS and less type II collagen deposition compared to scaffolds without heparin. In conclusion, unidirectional collagen scaffolds pre-incubated with 10 μg BMP2 supported chondrogenesis in vitro and may be suitable for prolonged cartilage matrix synthesis in vivo.
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Affiliation(s)
- Michiel W Pot
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, PO Box 9101, 6500 HB Nijmegen, The Netherlands
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Keller L, Regiel-Futyra A, Gimeno M, Eap S, Mendoza G, Andreu V, Wagner Q, Kyzioł A, Sebastian V, Stochel G, Arruebo M, Benkirane-Jessel N. Chitosan-based nanocomposites for the repair of bone defects. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017. [PMID: 28647591 DOI: 10.1016/j.nano.2017.06.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Chitosan scaffolds of different deacetylation degrees, average molecular weights and concentrations reinforced with silica nanoparticles were prepared for bone tissue regeneration. The resulting nanocomposites showed similar pore sizes (<300 μm) regardless the deacetylation degree and concentration used in their formulation. Their mechanical compression resistance was increased by a 30% with the addition of silica nanoparticles as nanofillers. The biocompatibility of the three-dimensional chitosan scaffolds was confirmed by the Alamar Blue assay in human primary osteoblasts as well as the formation of cell spheroids indicative of their great potential for bone regeneration. In vivo implantation of the scaffolds in a mice calvaria defect model provided substantial evidences of the suitability of these nanocomposites for bone tissue engineering showing a mature and dense collagenous tissue with small foci of mineralization, vascularized areas and the infiltration of osteoblasts and osteoclasts. Nevertheless, mature bone tissue formation was not observed after eight weeks of implantation.
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Affiliation(s)
- L Keller
- INSERM, Unité Mixte de Recherche UMR 1109, Team "Osteoarticular and Dental Regenerative NanoMedicine," Fédération de Médecine Translationnelle de Strasbourg, Faculté de Chirurgie Dentaire, UDS, Strasbourg, France
| | - A Regiel-Futyra
- Faculty of Chemistry, Jagiellonian University, Kraków, Poland
| | - M Gimeno
- Faculty of Veterinary, Department of Animal Pathology, University of Zaragoza, Spain
| | - S Eap
- INSERM, Unité Mixte de Recherche UMR 1109, Team "Osteoarticular and Dental Regenerative NanoMedicine," Fédération de Médecine Translationnelle de Strasbourg, Faculté de Chirurgie Dentaire, UDS, Strasbourg, France
| | - G Mendoza
- Department of Chemical Engineering, Aragon Institute of Nanoscience (INA), University of Zaragoza, Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029, Madrid, Spain; Aragon Health Research Institute (IIS Aragón), 50009, Zaragoza, Spain.
| | - V Andreu
- Department of Chemical Engineering, Aragon Institute of Nanoscience (INA), University of Zaragoza, Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029, Madrid, Spain; Aragon Health Research Institute (IIS Aragón), 50009, Zaragoza, Spain.
| | - Q Wagner
- INSERM, Unité Mixte de Recherche UMR 1109, Team "Osteoarticular and Dental Regenerative NanoMedicine," Fédération de Médecine Translationnelle de Strasbourg, Faculté de Chirurgie Dentaire, UDS, Strasbourg, France
| | - A Kyzioł
- Faculty of Chemistry, Jagiellonian University, Kraków, Poland
| | - V Sebastian
- Department of Chemical Engineering, Aragon Institute of Nanoscience (INA), University of Zaragoza, Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029, Madrid, Spain; Aragon Health Research Institute (IIS Aragón), 50009, Zaragoza, Spain
| | - G Stochel
- Faculty of Chemistry, Jagiellonian University, Kraków, Poland
| | - M Arruebo
- Department of Chemical Engineering, Aragon Institute of Nanoscience (INA), University of Zaragoza, Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029, Madrid, Spain; Aragon Health Research Institute (IIS Aragón), 50009, Zaragoza, Spain
| | - N Benkirane-Jessel
- INSERM, Unité Mixte de Recherche UMR 1109, Team "Osteoarticular and Dental Regenerative NanoMedicine," Fédération de Médecine Translationnelle de Strasbourg, Faculté de Chirurgie Dentaire, UDS, Strasbourg, France
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16
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Guler Z, Silva JC, Sarac AS. Enhanced osteogenesis on biofunctionalized poly(ɛ-caprolactone)/poly(m-anthranilic acid) nanofibers. J Biomater Appl 2016; 31:743-754. [PMID: 27440863 DOI: 10.1177/0885328216660379] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Biofunctionalized nanofibers with a desired biological function can be used as a tissue engineering scaffold due to their small fiber diameters and porous structure. In the present study, poly(ɛ-caprolactone)/poly(m-anthranilic acid) nanofibers were biofunctionalized with covalent immobilization of bone morphogenetic protein-2 (BMP-2) through 1-ethyl-3-(dimethyl-aminopropyl) carbodiimide hydrochloride/N-hydroxysuccinimide activation. Fourier transform infrared analysis of the nanofiber surfaces confirmed the successful immobilization. The amount of immobilized BMP-2 was determined with bicinchoninic acid protein assay. The nanofibers before and after BMP-2 immobilization were non-cytotoxic and enhanced the attachment and proliferation of Saos-2 cells. Biofunctionalization of nanofibers with BMP-2 promoted in vitro osteogenic activity. The alkaline phosphatase activity and calcium mineralizatio of cells after 14 days of in vitro culture were enhanced on nanofibers with immobilized BMP-2.
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Affiliation(s)
- Zeliha Guler
- Nanoscience and Nanoengineering, Istanbul Technical University, Istanbul, Turkey I3N/Cenimat and Physics Department, Faculty of Science and Technology, Nova University of Lisbon, Caparica, Portugal
| | - Jorge C Silva
- I3N/Cenimat and Physics Department, Faculty of Science and Technology, Nova University of Lisbon, Caparica, Portugal
| | - Abdulkadir S Sarac
- Nanoscience and Nanoengineering, Istanbul Technical University, Istanbul, Turkey Department of Chemistry, Istanbul Technical University, Istanbul, Turkey Department of Polymer Science and Technology, Istanbul Technical University, Istanbul, Turkey
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17
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A Long-Acting BMP-2 Release System Based on Poly(3-hydroxybutyrate) Nanoparticles Modified by Amphiphilic Phospholipid for Osteogenic Differentiation. BIOMED RESEARCH INTERNATIONAL 2016; 2016:5878645. [PMID: 27379249 PMCID: PMC4917749 DOI: 10.1155/2016/5878645] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 05/17/2016] [Indexed: 12/31/2022]
Abstract
We explored a novel poly(3-hydroxybutyrate) (PHB) nanoparticle loaded with hydrophilic recombinant human BMP-2 with amphiphilic phospholipid (BPC-PHB NP) for a rapid-acting and long-acting delivery system of BMP-2 for osteogenic differentiation. The BPC-PHB NPs were prepared by a solvent evaporation method and showed a spherical particle with a mean particle size of 253.4 nm, mean zeta potential of −22.42 mV, and high entrapment efficiency of 77.18%, respectively. For BPC-PHB NPs, a short initial burst release of BMP-2 from NPs in 24 h was found and it has steadily risen to reach about 80% in 20 days for in vitro test. BPC-PHB NPs significantly reduced the burst release of BMP-2, as compared to that of PHB NPs loading BMP-2 without PL (B-PHB NPs). BPC-PHB NPs maintained the content of BMP-2 for a long-term osteogenic differentiation. The OCT-1 cells with BPC-PHB NPs have high ALP activity in comparison with others. The gene markers for osteogenic differentiation were significantly upregulated for sample with BPC-PHB NPs, implying that BPC-PHB NPs can be used as a rapid-acting and long-acting BMP-2 delivery system for osteogenic differentiation.
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18
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Shen H, Hu X, Cui H, Zhuang Y, Huang D, Yang F, Wang X, Wang S, Wu D. Fabrication and effect on regulating vSMC phenotype of a biomimetic tunica media scaffold. J Mater Chem B 2016; 4:7689-7696. [DOI: 10.1039/c6tb02437h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We constructed a bFGF@TGF-β1 loaded porous film-like PLGA scaffold with dual surface topography of nanofiber and micro-orientation structures for regulating the phenotype of vascular smooth muscle cell (vSMC).
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Affiliation(s)
- Hong Shen
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Xixue Hu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology
- Beijing 100190
- China
| | - Haiyan Cui
- Ninth People's Hospital
- School of Medicine
- Shanghai Jiao Tong University
- Shanghai 200011
- China
| | - Yaping Zhuang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Da Huang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Fei Yang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Shenguo Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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19
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Chen C, Kong X, Lee IS. Modification of surface/neuron interfaces for neural cell-type specific responses: a review. ACTA ACUST UNITED AC 2015; 11:014108. [PMID: 26694886 DOI: 10.1088/1748-6041/11/1/014108] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Surface/neuron interfaces have played an important role in neural repair including neural prostheses and tissue engineered scaffolds. This comprehensive literature review covers recent studies on the modification of surface/neuron interfaces. These interfaces are identified in cases both where the surfaces of substrates or scaffolds were in direct contact with cells and where the surfaces were modified to facilitate cell adhesion and controlling cell-type specific responses. Different sources of cells for neural repair are described, such as pheochromocytoma neuronal-like cell, neural stem cell (NSC), embryonic stem cell (ESC), mesenchymal stem cell (MSC) and induced pluripotent stem cell (iPS). Commonly modified methods are discussed including patterned surfaces at micro- or nano-scale, surface modification with conducting coatings, and functionalized surfaces with immobilized bioactive molecules. These approaches to control cell-type specific responses have enormous potential implications in neural repair.
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Affiliation(s)
- Cen Chen
- Bio-X Center, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
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20
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Chang CH, Yeh SY, Lee BH, Chen CJ, Su CT, Lin YT, Liu CL, Chen HY. Osteogenic Surface Modification Based on Functionalized Poly-P-Xylylene Coating. PLoS One 2015; 10:e0137017. [PMID: 26379273 PMCID: PMC4574780 DOI: 10.1371/journal.pone.0137017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 08/10/2015] [Indexed: 11/22/2022] Open
Abstract
The biotechnology to immobilize biomolecules on material surfaces has been developed vigorously due to its high potentials in medical applications. In this study, a simple and effective method was designed to immobilize biomolecules via amine-N-hydroxysuccinimide (NHS) ester conjugation reaction using functionalized poly-p-xylylene coating on material surfaces. The NHS ester functionalized coating is synthesized via chemical vapor deposition, a facile and solvent-less method, creating a surface which is ready to perform a one-step conjugation reaction. Bone morphogenetic protein 2 (BMP-2) is immobilized onto material surfaces by this coating method, forming an osteogenic environment. The immobilization process is controlled at a low temperature which does not damage proteins. This modified surface induces differentiation of preosteoblast into osteoblast, manifested by alkaline phosphatase (ALP) activity assay, Alizarin Red S (ARS) staining and the expression of osteogenic gene markers, Alpl and Bglap3. With this coating technology, immobilization of growth factors onto material surface can be achieved more simply and more effectively.
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Affiliation(s)
- Chih-Hao Chang
- Department of Orthopedics, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Shu-Yun Yeh
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan
| | - Bing-Heng Lee
- Department of Orthopedics, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chia-Jie Chen
- Department of Orthopedics, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chiao-Tzu Su
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan
| | - Yen-Ting Lin
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan
| | - Chien-Lin Liu
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan and School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hsien-Yeh Chen
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan
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21
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Zhang W, He H, Tian Y, Gan Q, Zhang J, Yuan Y, Liu C. Calcium ion-induced formation of β-sheet/-turn structure leading to alteration of osteogenic activity of bone morphogenetic protein-2. Sci Rep 2015. [PMID: 26212061 PMCID: PMC4515877 DOI: 10.1038/srep12694] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Preserving bioactivity of bone morphogenetic protein 2 (BMP-2) still remains a challenge in protein-based therapy. It is not known how Ca2+ released from extracellular matrix or existing in physiological environment influences bioactivity in situ till now. Here, effects of extracellular Ca2+ on conformation and osteogenic bioactivity of recombinant human BMP-2 (rhBMP-2) were investigated systematically. In vitro results indicated that Ca2+ could bind rhBMP-2 rapidly and had no obvious effect on cell behaviors. Low concentration of Ca2+ (0.18 mM) enhanced rhBMP-2-induced osteogenic differentiation, while high Ca2+ concentration (>1.80 mM) exerted negative effect. In vivo ectopic bone formation exhibited similar trend. Further studies by circular dichroism spectroscopy, fluorescence spectroscopy, together with cell culture experiments revealed at low concentration, weak interaction of Ca2+ and rhBMP-2 slightly increased β-sheet/-turn content and facilitated recognition of BMP-2 and BMPRIA. But, high Ca2+ concentration (>1.8 mM) induced formation of Ca-rhBMP-2 complex and markedly increased content of β-sheet/-turn, which led to inhibition binding of rhBMP-2 and BMPRIA and thus suppression of downstream Smad1/5/8, ERK1/2 and p38 mitogen-associated protein kinase signaling pathways. Our work suggests osteogenic bioactivity of BMP-2 can be adjusted via extracellular Ca2+, which should provide guide and assist for development of BMP-2-based materials for bone regeneration.
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Affiliation(s)
- Wenjing Zhang
- 1] The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China [2] Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China
| | - Hongyan He
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China
| | - Yu Tian
- 1] The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China [2] Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China
| | - Qi Gan
- 1] Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China [2] Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China
| | - Jing Zhang
- Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China
| | - Yuan Yuan
- 1] The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China [2] Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China
| | - Changsheng Liu
- 1] The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China [2] Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China [3] Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR China
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22
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Gao T, Zhang N, Wang Z, Wang Y, Liu Y, Ito Y, Zhang P. Biodegradable Microcarriers of Poly(Lactide-co-Glycolide) and Nano-Hydroxyapatite Decorated with IGF-1 via Polydopamine Coating for Enhancing Cell Proliferation and Osteogenic Differentiation. Macromol Biosci 2015; 15:1070-80. [PMID: 25950171 DOI: 10.1002/mabi.201500069] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 04/16/2015] [Indexed: 11/08/2022]
Abstract
In this study, insulin-like growth factor 1 (IGF-1) was successfully immobilized on the poly(lactide-co-glycolide)/hydroxyapatite (PLGA/HA) and pure PLGA microcarriers via polydopamine (pDA). The results demonstrated that the pDA layer facilitated simple and highly efficient immobilization of peptides on the microcarriers within 20 min. Mouse adipose-derived stem cells (ADSCs) attachment and proliferation on IGF-1-immobilized microcarriers were much higher than non-immobilized ones. More importantly, the IGF-1-immobilized PLGA/HA microcarriers significantly increased alkaline phosphatase (ALP) activity and expression of osteogenesis-related genes of ADSCs. Therefore, it is considered that the IGF-1-decorated PLGA/HA microcarriers will be of great value in the bone tissue engineering.
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Affiliation(s)
- Tianlin Gao
- School of Public Health, Jilin University, Changchun, 130021, P. R. China.,Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Ning Zhang
- Department of Foot and Ankle Surgery, The Second Hospital of Shandong University, Jinan, 250000, P. R. China
| | - Zongliang Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Yu Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Ya Liu
- School of Public Health, Jilin University, Changchun, 130021, P. R. China.
| | - Yoshihiro Ito
- Nano Medical Engineering Laboratory, RIKEN, 2-1-Hirosawa, Wako, Saitama, 351-0198, Japan.,Emergent Bioengineering Materials Research Team, RIKEN Center for Emergent Materials Science, 2-1-Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Peibiao Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.
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23
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Shen H, Niu Y, Hu X, Yang F, Wang S, Wu D. A biomimetic 3D microtubule-orientated poly(lactide-co-glycolide) scaffold with interconnected pores for tissue engineering. J Mater Chem B 2015; 3:4417-4425. [PMID: 32262785 DOI: 10.1039/c5tb00167f] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
An ideal tissue engineering scaffold should imitate physical and biochemical cues of natural extracellular matrix and have interconnected porous structures with high porosity to provide adequate space for cell seeding, growth and proliferation, as well as nutrient delivery and metabolized product elimination. In this study, we examined the feasibility of fabricating microtubule-orientated poly(lactide-co-glycolide) (PLGA) scaffolds with interconnected pores (denoted as MOIP-PLGA) by an improved thermal-induced phase separation technique. We successfully constructed MOIP-PLGA using 1,4-dioxane as the first solvent and benzene or water with lower freezing point as the second solvent. Especially, when water was used, the MOIP-PLGA had higher porosity and it could guide rabbit aortic smooth muscle cells (SMCs) to better grow along the microtubule direction of the scaffold. Comparing with microtubule-orientated scaffold without interconnected pores (denoted as MONIP-PLGA), the proliferation and viability of SMCs cultured on MOIP-PLGA were higher. Moreover, basic fibroblast growth factor could be effectively bound on MOIP-PLGA by a plasma treatment technique and the growth factor could be slowly released in vitro, maintaining bioactivity.
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Affiliation(s)
- Hong Shen
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
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24
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Qu X, Cao Y, Chen C, Die X, Kang Q. A poly(lactide-co-glycolide) film loaded with abundant bone morphogenetic protein-2: A substrate-promoting osteoblast attachment, proliferation, and differentiation in bone tissue engineering. J Biomed Mater Res A 2015; 103:2786-96. [PMID: 25847124 DOI: 10.1002/jbm.a.35379] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 11/11/2014] [Accepted: 12/01/2014] [Indexed: 12/25/2022]
Affiliation(s)
- Xiangyang Qu
- Ministry of Education Key Laboratory of Child Development and Disorders; The Children's Hospital of Chongqing Medical University; Chongqing 400014 China
- Key Laboratory of Pediatrics in Chongqing; Chongqing 400014 China
- Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Chongqing 400014 China
| | - Yujiang Cao
- Ministry of Education Key Laboratory of Child Development and Disorders; The Children's Hospital of Chongqing Medical University; Chongqing 400014 China
- Key Laboratory of Pediatrics in Chongqing; Chongqing 400014 China
- Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Chongqing 400014 China
| | - Cong Chen
- Ministry of Education Key Laboratory of Child Development and Disorders; The Children's Hospital of Chongqing Medical University; Chongqing 400014 China
- Key Laboratory of Pediatrics in Chongqing; Chongqing 400014 China
- Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Chongqing 400014 China
- Chongqing Stem Cell Therapy Engineering Technical Center; Chongqing 400014 China
| | - Xiaohong Die
- Ministry of Education Key Laboratory of Child Development and Disorders; The Children's Hospital of Chongqing Medical University; Chongqing 400014 China
- Key Laboratory of Pediatrics in Chongqing; Chongqing 400014 China
- Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Chongqing 400014 China
- Chongqing Stem Cell Therapy Engineering Technical Center; Chongqing 400014 China
| | - Quan Kang
- Ministry of Education Key Laboratory of Child Development and Disorders; The Children's Hospital of Chongqing Medical University; Chongqing 400014 China
- Key Laboratory of Pediatrics in Chongqing; Chongqing 400014 China
- Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Chongqing 400014 China
- Chongqing Stem Cell Therapy Engineering Technical Center; Chongqing 400014 China
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25
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Zhu T, Chen S, Li W, Lou J, Wang J. Flurbiprofen axetil loaded coaxial electrospun poly(vinyl pyrrolidone)-nanopoly(lactic-co-glycolic acid) core-shell composite nanofibers: Preparation, characterization, and anti-adhesion activity. J Appl Polym Sci 2015. [DOI: 10.1002/app.41982] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Tonghe Zhu
- School of Fashion Design; Shanghai University of Engineering Science; Shanghai 201620 People's Republic of China
- Multidisciplinary Center for Advanced Materials; Shanghai University of Engineering Science; Shanghai 201620 People's Republic of China
| | - Sihao Chen
- Multidisciplinary Center for Advanced Materials; Shanghai University of Engineering Science; Shanghai 201620 People's Republic of China
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; Shanghai 201620 People's Republic of China
| | - Wenyao Li
- School of Materials Engineering; Shanghai University of Engineering Science; Shanghai 201620 People's Republic of China
| | - Jianzhong Lou
- Multidisciplinary Center for Advanced Materials; Shanghai University of Engineering Science; Shanghai 201620 People's Republic of China
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; Shanghai 201620 People's Republic of China
- Department of Chemical Engineering and Biomedical Engineering; North Carolina A&T State University; 1601 East Market Street Greensboro North Carolina 27411
| | - Jihu Wang
- Multidisciplinary Center for Advanced Materials; Shanghai University of Engineering Science; Shanghai 201620 People's Republic of China
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; Shanghai 201620 People's Republic of China
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26
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Subramanian G, Bialorucki C, Yildirim-Ayan E. Nanofibrous yet injectable polycaprolactone-collagen bone tissue scaffold with osteoprogenitor cells and controlled release of bone morphogenetic protein-2. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 51:16-27. [PMID: 25842103 DOI: 10.1016/j.msec.2015.02.030] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 01/21/2015] [Accepted: 02/23/2015] [Indexed: 01/01/2023]
Abstract
In this work, we developed a nanofibrous, yet injectable orthobiologic tissue scaffold that is capable of hosting osteoprogenitor cells and controlling kinetic release profile of the encapsulated pro-osteogenic factor without diminishing its bioactivity over 21days. This innovative injectable scaffold was synthesized by incorporating electrospun and subsequently O2 plasma-functionalized polycaprolactone (PCL) nanofibers within the collagen type-I solution along with MC3T3-E1 cells (pre-osteoblasts) and bone morphogenetic protein-2 (BMP2). Through changing the PCL nanofiber concentration within the injectable scaffolds, we were able to tailor the mechanical strength, protein retention capacity, bioactivity preservation, and osteoinductive potential of the scaffolds. The nanofibrous internal structure of the scaffold allowed us to use a low dose of BMP2 (200ng/ml) to achieve osteoblastic differentiation in in vitro culture. The osteogenesis capacity of the injectable scaffolds were evaluated though measuring MC3T3-E1 cell proliferation, ALP activity, matrix mineralization, and early- and late-osteoblast specific gene expression profiles over 21days. The results demonstrated that the nanofibrous injectable scaffold provides not only an osteoinductive environment for osteoprogenitor cells to differentiate, but also a suitable biomechanical and biochemical environment to act as a reservoir for osteogenic factors with controlled release profile.
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Affiliation(s)
- Gayathri Subramanian
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA
| | - Callan Bialorucki
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA
| | - Eda Yildirim-Ayan
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; Department of Orthopaedic Surgery, University of Toledo Medical Center, Toledo, OH 43614, USA.
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27
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Jo YK, Choi BH, Zhou C, Ahn JS, Jun SH, Cha HJ. Bioengineered mussel glue incorporated with a cell recognition motif as an osteostimulating bone adhesive for titanium implants. J Mater Chem B 2015; 3:8102-8114. [DOI: 10.1039/c5tb01230a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An engineered mussel glue MAP-RGD can be successfully used as a novel functional osteostimulating bone adhesive for titanium implants through improved osteoblastic cell behaviors, blood responses, and eventually enhanced bone regeneration.
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Affiliation(s)
- Yun Kee Jo
- Department of Chemical Engineering
- Pohang University of Science and Technology
- Pohang 790-784
- Korea
| | - Bong-Hyuk Choi
- Department of Chemical Engineering
- Pohang University of Science and Technology
- Pohang 790-784
- Korea
| | - Cong Zhou
- Department of Medicine
- Korea University Graduate School
- Seoul 136-705
- Korea
| | - Jin-Soo Ahn
- Dental Research Institute and Department of Dental Biomaterials Science
- Seoul National University
- Seoul 110-749
- Korea
| | - Sang Ho Jun
- Department of Dentistry, Anam Hospital
- Korea University Medical Center
- Seoul 136-705
- Korea
| | - Hyung Joon Cha
- Department of Chemical Engineering
- Pohang University of Science and Technology
- Pohang 790-784
- Korea
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28
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Enhanced healing of rabbit segmental radius defects with surface-coated calcium phosphate cement/bone morphogenetic protein-2 scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 44:326-35. [DOI: 10.1016/j.msec.2014.08.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 06/23/2014] [Accepted: 08/02/2014] [Indexed: 02/07/2023]
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29
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Abstract
Bone defects requiring grafts to promote healing are frequently occurring and costly problems in health care. Chitosan, a biodegradable, naturally occurring polymer, has drawn considerable attention in recent years as scaffolding material in tissue engineering and regenerative medicine. Chitosan is especially attractive as a bone scaffold material because it supports the attachment and proliferation of osteoblast cells as well as formation of mineralized bone matrix. In this review, we discuss the fundamentals of bone tissue engineering and the unique properties of chitosan as a scaffolding material to treat bone defects for hard tissue regeneration. We present the common methods for fabrication and characterization of chitosan scaffolds, and discuss the influence of material preparation and addition of polymeric or ceramic components or biomolecules on chitosan scaffold properties such as mechanical strength, structural integrity, and functional bone regeneration. Finally, we highlight recent advances in development of chitosan-based scaffolds with enhanced bone regeneration capability.
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Affiliation(s)
- Sheeny Lan Levengood
- Department of Materials Science & Engineering, University of Washington, Seattle, WA 98195 USA
| | - Miqin Zhang
- Department of Materials Science & Engineering, University of Washington, Seattle, WA 98195 USA
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30
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Kim SE, Yun YP, Han YK, Lee DW, Ohe JY, Lee BS, Song HR, Park K, Choi BJ. Osteogenesis induction of periodontal ligament cells onto bone morphogenic protein-2 immobilized PCL fibers. Carbohydr Polym 2014; 99:700-9. [DOI: 10.1016/j.carbpol.2013.08.053] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 07/28/2013] [Accepted: 08/20/2013] [Indexed: 12/21/2022]
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Immobilization of bone morphogenetic protein on DOPA- or dopamine-treated titanium surfaces to enhance osseointegration. BIOMED RESEARCH INTERNATIONAL 2013; 2013:265980. [PMID: 24459666 PMCID: PMC3888698 DOI: 10.1155/2013/265980] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 11/16/2013] [Accepted: 11/25/2013] [Indexed: 01/31/2023]
Abstract
Titanium was treated with 3,4-dihydroxy-L-phenylalanine (DOPA) or dopamine to immobilize bone morphogenetic protein-2 (BMP2), a biomolecule. DOPA and dopamine solutions turned into suspensions, and precipitates were produced at high pH. Both treatments produced a brown surface on titanium that was thicker at high pH than low pH. Dopamine produced a thicker layer than DOPA. The hydrophobicity of the surfaces increased after treatment with dopamine independent of pH. Furthermore, there were more amino groups in the layers formed at pH 8.5 than pH 4.5 in both treatments. Dopamine treatment produced more amino groups in the layer than DOPA. BMP2 was immobilized on the treated surfaces via a coupling reaction using carbodiimide. More BMP2 was immobilized on surfaces treated at pH 8.5 than pH 4.5 in both treatments. The immobilized BMP induced specific signal transduction and alkali phosphatase, a differentiation marker. Thus, the present study demonstrates that titanium treated with DOPA or dopamine can become bioactive via the surface immobilization of BMP2, which induces specific signal transduction.
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Ko E, Yang K, Shin J, Cho SW. Polydopamine-assisted osteoinductive peptide immobilization of polymer scaffolds for enhanced bone regeneration by human adipose-derived stem cells. Biomacromolecules 2013; 14:3202-13. [PMID: 23941596 DOI: 10.1021/bm4008343] [Citation(s) in RCA: 174] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Immobilization of osteoinductive molecules, including growth factors or peptides, on polymer scaffolds is critical for improving stem cell-mediated bone tissue engineering. Such molecules provide osteogenesis-stimulating signals for stem cells. Typical methods used for polymeric scaffold modification (e.g., chemical conjugation or physical adsorption), however, have limitations (e.g., multistep, complicated procedures, material denaturation, batch-to-batch inconsistency, and inadequate conjugation) that diminish the overall efficiency of the process. Therefore, in this study, we report a biologically inspired strategy to prepare functional polymer scaffolds that efficiently regulate the osteogenic differentiation of human adipose-derived stem cells (hADSCs). Polymerization of dopamine (DA), a repeated motif observed in mussel adhesive protein, under alkaline pH conditions, allows for coating of a polydopamine (pDA) layer onto polymer scaffolds. Our study demonstrates that predeposition of a pDA layer facilitates highly efficient, simple immobilization of peptides derived from osteogenic growth factor (bone morphogenetic protein-2; BMP-2) on poly(lactic-co-glycolic acid) (PLGA) scaffolds via catechol chemistry. The BMP-2 peptide-immobilized PLGA scaffolds greatly enhanced in vitro osteogenic differentiation and calcium mineralization of hADSCs using either osteogenic medium or nonosteogenic medium. Furthermore, transplantation of hADSCs using pDA-BMP-2-PLGA scaffolds significantly promoted in vivo bone formation in critical-sized calvarial bone defects. Therefore, pDA-mediated catechol functionalization would be a simple and effective method for developing tissue engineering scaffolds exhibiting enhanced osteoinductivity. To the best of our knowledge, this is the first study demonstrating that pDA-mediated surface modification of polymer scaffolds potentiates the regenerative capacity of human stem cells for healing tissue defect in vivo.
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Affiliation(s)
- Eunkyung Ko
- Department of Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
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Lee C, Shin J, Lee JS, Byun E, Ryu JH, Um SH, Kim DI, Lee H, Cho SW. Bioinspired, Calcium-Free Alginate Hydrogels with Tunable Physical and Mechanical Properties and Improved Biocompatibility. Biomacromolecules 2013; 14:2004-13. [DOI: 10.1021/bm400352d] [Citation(s) in RCA: 204] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Changhyun Lee
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic
of Korea
| | - Jisoo Shin
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic
of Korea
| | - Jung Seung Lee
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic
of Korea
| | | | | | - Soong Ho Um
- School of Chemical
Engineering and SKKU Advanced Institute of
Nanotechnology (SAINT), Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Dong-Ik Kim
- Division of Vascular
Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 135-710, Republic
of Korea
| | | | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic
of Korea
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He F, Li J, Ye J. Improvement of cell response of the poly(lactic-co-glycolic acid)/calcium phosphate cement composite scaffold with unidirectional pore structure by the surface immobilization of collagen via plasma treatment. Colloids Surf B Biointerfaces 2013. [DOI: 10.1016/j.colsurfb.2012.10.018] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Santo VE, Gomes ME, Mano JF, Reis RL. Controlled release strategies for bone, cartilage, and osteochondral engineering--Part II: challenges on the evolution from single to multiple bioactive factor delivery. TISSUE ENGINEERING PART B-REVIEWS 2013; 19:327-52. [PMID: 23249320 DOI: 10.1089/ten.teb.2012.0727] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The development of controlled release systems for the regeneration of bone, cartilage, and osteochondral interface is one of the hot topics in the field of tissue engineering and regenerative medicine. However, the majority of the developed systems consider only the release of a single growth factor, which is a limiting step for the success of the therapy. More recent studies have been focused on the design and tailoring of appropriate combinations of bioactive factors to match the desired goals regarding tissue regeneration. In fact, considering the complexity of extracellular matrix and the diversity of growth factors and cytokines involved in each biological response, it is expected that an appropriate combination of bioactive factors could lead to more successful outcomes in tissue regeneration. In this review, the evolution on the development of dual and multiple bioactive factor release systems for bone, cartilage, and osteochondral interface is overviewed, specifically the relevance of parameters such as dosage and spatiotemporal distribution of bioactive factors. A comprehensive collection of studies focused on the delivery of bioactive factors is also presented while highlighting the increasing impact of platelet-rich plasma as an autologous source of multiple growth factors.
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Affiliation(s)
- Vítor E Santo
- 3Bs Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal
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Nijhuis AWG, van den Beucken JJJP, Boerman OC, Jansen JA, Leeuwenburgh SCG. 1-step versus 2-step immobilization of alkaline phosphatase and bone morphogenetic protein-2 onto implant surfaces using polydopamine. Tissue Eng Part C Methods 2013; 19:610-9. [PMID: 23231507 DOI: 10.1089/ten.tec.2012.0313] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Immobilization of biomolecules onto implant surfaces is highly relevant in many areas of biomaterial research. Recently, a 2-step immobilization procedure was developed for the facile conjugation of biomolecules onto various surfaces using self-polymerization of dopamine into polydopamine. In the current study, a 1-step polydopamine-based approach was applied for alkaline phosphatase (ALP) and bone morphogenetic protein-2 (BMP-2) immobilization, and compared to the conventional 2-step polydopamine-based immobilization and plain adsorption. To this end, ALP and BMP-2 were immobilized onto titanium and polytetrafluoroethylene (PTFE) substrates. The absolute quantity and biological activity of immobilized ALP were assessed quantitatively to compare the three types of immobilization. Plain adsorption of both ALP and BMP-2 was inferior to both polydopamine-based immobilization approaches. ALP was successfully immobilized onto titanium and PTFE surfaces via the 1-step approach, and the immobilized ALP retained its enzymatic activity. Using the 1-step approach, the amount of immobilized ALP was increased twofold to threefold compared to the conventional 2-step immobilization process. In contrast, more BMP-2 was immobilized using the conventional 2-step immobilization approach. Retention of ALP and BMP-2 was measured over a period of 4 weeks and was found to be similar for the 1-step and 2-step methods and far superior to the retention of adsorbed biomolecules due to the formation of covalent linkages between catechol moieties and immobilized proteins. The biological behavior of ALP and BMP-2 coatings immobilized using polydopamine (1- and 2-step) as well as adsorption was assessed by culturing rat bone marrow cells, which revealed that the cell responses to the various experimental groups were not statistically different. In conclusion, the 1-step polydopamine-based immobilization method was shown to be more efficient for immobilization of ALP, whereas the conventional 2-step method was shown to be more efficient for attachment of BMP-2 onto implant surfaces.
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Affiliation(s)
- Arnold W G Nijhuis
- Department of Biomaterials, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
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37
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Surface Modification of Biodegradable Polyesters for Soft and Hard Tissue Regeneration. THIN FILMS AND COATINGS IN BIOLOGY 2013. [DOI: 10.1007/978-94-007-2592-8_7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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38
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Neumann A, Christel A, Kasper C, Behrens P. BMP2-loaded nanoporous silica nanoparticles promote osteogenic differentiation of human mesenchymal stem cells. RSC Adv 2013. [DOI: 10.1039/c3ra44734k] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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39
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Culpepper BK, Bonvallet PP, Reddy MS, Ponnazhagan S, Bellis SL. Polyglutamate directed coupling of bioactive peptides for the delivery of osteoinductive signals on allograft bone. Biomaterials 2012. [PMID: 23182349 DOI: 10.1016/j.biomaterials.2012.10.046] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Allograft bone is commonly used as an alternative to autograft, however allograft lacks many osteoinductive factors present in autologous bone due to processing. In this study, we investigated a method to reconstitute allograft with osteoregenerative factors. Specifically, an osteoinductive peptide from collagen I, DGEA, was engineered to express a heptaglutamate (E7) domain, which binds the hydroxyapatite within bone mineral. Addition of E7 to DGEA resulted in 9× greater peptide loading on allograft, and significantly greater retention after a 5-day interval with extensive washing. When factoring together greater initial loading and retention, the E7 domain directed a 45-fold enhancement of peptide density on the allograft surface. Peptide-coated allograft was also implanted subcutaneously into rats and it was found that E7DGEA was retained in vivo for at least 3 months. Interestingly, E7DGEA peptides injected intravenously accumulated within bone tissue, implicating a potential role for E7 domains in drug delivery to bone. Finally, we determined that, as with DGEA, the E7 modification enhanced coupling of a bioactive BMP2-derived peptide on allograft. These results suggest that E7 domains are useful for coupling many types of bone-regenerative molecules to the surface of allograft to reintroduce osteoinductive signals and potentially advance allograft treatments.
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Affiliation(s)
- Bonnie K Culpepper
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
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40
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Korzhikov VA, Vlakh EG, Tennikova TB. Polymers in orthopedic surgery and tissue engineering: From engineering materials to smart biofunctionalization of a surface. POLYMER SCIENCE SERIES A 2012. [DOI: 10.1134/s0965545x12070036] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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41
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Recombinant human bone morphogenic protein-2 (Rhbmp-2) immobilization onto the surface of apatite-coated titanium significantly promotes osteoblast function and mineralization. Tissue Eng Regen Med 2012. [DOI: 10.1007/s13770-012-0335-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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42
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Yang K, Lee JS, Kim J, Lee YB, Shin H, Um SH, Kim JB, Park KI, Lee H, Cho SW. Polydopamine-mediated surface modification of scaffold materials for human neural stem cell engineering. Biomaterials 2012; 33:6952-64. [PMID: 22809643 DOI: 10.1016/j.biomaterials.2012.06.067] [Citation(s) in RCA: 249] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Accepted: 06/25/2012] [Indexed: 10/28/2022]
Abstract
Surface modification of tissue engineering scaffolds and substrates is required for improving the efficacy of stem cell therapy by generating physicochemical stimulation promoting proliferation and differentiation of stem cells. However, typical surface modification methods including chemical conjugation or physical absorption have several limitations such as multistep, complicated procedures, surface denaturation, batch-to-batch inconsistencies, and low surface conjugation efficiency. In this study, we report a mussel-inspired, biomimetic approach to surface modification for efficient and reliable manipulation of human neural stem cell (NSC) differentiation and proliferation. Our study demonstrates that polydopamine coating facilitates highly efficient, simple immobilization of neurotrophic growth factors and adhesion peptides onto polymer substrates. The growth factor or peptide-immobilized substrates greatly enhance differentiation and proliferation of human NSCs (human fetal brain-derived NSCs and human induced pluripotent stem cell-derived NSCs) at a level comparable or greater than currently available animal-derived coating materials (Matrigel) with safety issues. Therefore, polydopamine-mediated surface modification can provide a versatile platform technology for developing chemically defined, safe, functional substrates and scaffolds for therapeutic applications of human NSCs.
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Affiliation(s)
- Kisuk Yang
- Department of Biotechnology, Yonsei University, Seodaemun-gu, Seoul, Republic of Korea
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43
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Ma C, Pang D, Xiong Z, Bai W, Xiong C. Cellular responses to electrospun membranes made from blends of PLLGA with PEG and PLLGA-b-PEG. J Biomed Mater Res A 2012; 100:2897-904. [PMID: 22696182 DOI: 10.1002/jbm.a.34226] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2011] [Revised: 04/02/2012] [Accepted: 04/23/2012] [Indexed: 01/13/2023]
Abstract
Control of cellular responses is crucial for the use of electrospun membranes in biomedical applications, including tissue engineering or biomedical devices. However, it is still unclear whether adhesion and proliferation of fibroblasts is stimulated or inhibited on polyethylene glycol (PEG)-modified electrospun membranes. In this study, poly(L-lactide-co-glycolide) (PLLGA)-PEG copolymer and pure PEG were blended with PLLGA, and then electrospun onto nonwoven membranes. The effects of blending of PLLGA-PEG or pure PEG on the adsorption of proteins, and further on the adhesion and proliferation of L929 fibroblasts on the electrospun membranes were investigated. Addition of PLLGA-PEG or PEG significantly improved the hydrophilicity of the electrospun membranes. Pure PEG had no obvious effects on the growth of L929 fibroblasts; in contrast, PLLGA-PEG significantly inhibited the adsorption of proteins and the proliferations of the cells on the electrospun membranes. In response to diminished protein adsorption, mRNA expression of genes related to cell adhesion and migration was up-regulated. The limited effects of pure PEG were probably caused by its preferential dissolution, whereas membrane-confined PLLGA-PEG displayed excellent performance on the inhibition of protein adsorption and cell proliferation.
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Affiliation(s)
- Chi Ma
- Polymer Department, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, China
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44
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Lu H, Kawazoe N, Kitajima T, Myoken Y, Tomita M, Umezawa A, Chen G, Ito Y. Spatial immobilization of bone morphogenetic protein-4 in a collagen-PLGA hybrid scaffold for enhanced osteoinductivity. Biomaterials 2012; 33:6140-6. [PMID: 22698726 DOI: 10.1016/j.biomaterials.2012.05.038] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Accepted: 05/17/2012] [Indexed: 02/09/2023]
Abstract
The introduction of bioactive molecules into three-dimensional porous scaffolds to mimic the in vivo microenvironment is a promising strategy for tissue engineering and stem cell research. In this study, bone morphogenetic protein-4 (BMP4) was spatially immobilized in a collagen-PLGA hybrid scaffold with a fusion BMP4 composed of an additional collagen-binding domain derived from fibronectin (CBD-BMP4). CBD-BMP4 bound to the collagen-PLGA hybrid scaffold and the BMP4-immobilized hybrid scaffold supported cell adhesion and proliferation. The osteogenic induction effect of the immobilized CBD-BMP4 was investigated with three-dimensional culture of human bone marrow-derived mesenchymal stem cells in the BMP4-immobilized collagen-PLGA hybrid scaffold. The in vivo implantation experiment demonstrated that the immobilized CBD-BMP4 maintained its osteoinductive activity, being capable of up-regulating osteogenic gene expression and biomineralization. The strong osteoinductivity of the BMP4-immobilized scaffold suggests it should be useful for bone tissue engineering, stem cell function manipulation and bone substitutes.
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Affiliation(s)
- Hongxu Lu
- Tissue Regeneration Materials Unit, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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45
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Ye L, Wu X, Mu Q, Chen B, Duan Y, Geng X, Gu Y, Zhang A, Zhang J, Feng ZG. Heparin-Conjugated PCL Scaffolds Fabricated by Electrospinning and Loaded with Fibroblast Growth Factor 2. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:389-406. [PMID: 20566037 DOI: 10.1163/092050610x487710] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Lin Ye
- a School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Xin Wu
- b Xuanwu Hospital, Capital Medical University, Beijing 100053, P. R. China
| | - Qian Mu
- c School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Bing Chen
- d Xuanwu Hospital, Capital Medical University, Beijing 100053, P. R. China
| | - Yonghong Duan
- e Xuanwu Hospital, Capital Medical University, Beijing 100053, P. R. China
| | - Xue Geng
- f School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Yongquan Gu
- g Xuanwu Hospital, Capital Medical University, Beijing 100053, P. R. China
| | - Aiying Zhang
- h School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Jian Zhang
- i Xuanwu Hospital, Capital Medical University, Beijing 100053, P. R. China
| | - Zeng-guo Feng
- j School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
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46
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Guan YQ, Zheng Z, Liang L, Li Z, Zhang L, Du J, Liu JM. The apoptosis of OVCAR-3 induced by TNF-α plus IFN-γ co-immobilized polylactic acid copolymers. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31972a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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47
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Masters KS. Covalent Growth Factor Immobilization Strategies for Tissue Repair and Regeneration. Macromol Biosci 2011; 11:1149-63. [DOI: 10.1002/mabi.201000505] [Citation(s) in RCA: 141] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 02/28/2011] [Indexed: 12/23/2022]
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48
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Kim BS, Park IK, Hoshiba T, Jiang HL, Choi YJ, Akaike T, Cho CS. Design of artificial extracellular matrices for tissue engineering. Prog Polym Sci 2011. [DOI: 10.1016/j.progpolymsci.2010.10.001] [Citation(s) in RCA: 207] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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49
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Blit PH, Battiston KG, Woodhouse KA, Santerre JP. Surface immobilization of elastin-like polypeptides using fluorinated surface modifying additives. J Biomed Mater Res A 2011; 96:648-62. [DOI: 10.1002/jbm.a.33022] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2010] [Revised: 11/08/2010] [Accepted: 12/01/2010] [Indexed: 11/09/2022]
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50
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Joddar B, Ito Y. Biological modifications of materials surfaces with proteins for regenerative medicine. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10984g] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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