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Xu J, Vecstaudza J, Wesdorp MA, Labberté M, Kops N, Salerno M, Kok J, Simon M, Harmand MF, Vancíková K, van Rietbergen B, Misciagna MM, Dolcini L, Filardo G, Farrell E, van Osch GJ, Locs J, Brama PA. Incorporating strontium enriched amorphous calcium phosphate granules in collagen/collagen-magnesium-hydroxyapatite osteochondral scaffolds improves subchondral bone repair. Mater Today Bio 2024; 25:100959. [PMID: 38327976 PMCID: PMC10847994 DOI: 10.1016/j.mtbio.2024.100959] [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: 09/28/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 02/09/2024] Open
Abstract
Osteochondral defect repair with a collagen/collagen-magnesium-hydroxyapatite (Col/Col-Mg-HAp) scaffold has demonstrated good clinical results. However, subchondral bone repair remained suboptimal, potentially leading to damage to the regenerated overlying neocartilage. This study aimed to improve the bone repair potential of this scaffold by incorporating newly developed strontium (Sr) ion enriched amorphous calcium phosphate (Sr-ACP) granules (100-150 μm). Sr concentration of Sr-ACP was determined with ICP-MS at 2.49 ± 0.04 wt%. Then 30 wt% ACP or Sr-ACP granules were integrated into the scaffold prototypes. The ACP or Sr-ACP granules were well embedded and distributed in the collagen matrix demonstrated by micro-CT and scanning electron microscopy/energy dispersive x-ray spectrometry. Good cytocompatibility of ACP/Sr-ACP granules and ACP/Sr-ACP enriched scaffolds was confirmed with in vitro cytotoxicity assays. An overall promising early tissue response and good biocompatibility of ACP and Sr-ACP enriched scaffolds were demonstrated in a subcutaneous mouse model. In a goat osteochondral defect model, significantly more bone was observed at 6 months with the treatment of Sr-ACP enriched scaffolds compared to scaffold-only, in particular in the weight-bearing femoral condyle subchondral bone defect. Overall, the incorporation of osteogenic Sr-ACP granules in Col/Col-Mg-HAp scaffolds showed to be a feasible and promising strategy to improve subchondral bone repair.
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Affiliation(s)
- Jietao Xu
- Department of Orthopedics and Sports Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, 3015 GD, Netherlands
| | - Jana Vecstaudza
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, LV-1007, Riga, Latvia
| | - Marinus A. Wesdorp
- Department of Orthopedics and Sports Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, 3015 GD, Netherlands
| | - Margot Labberté
- School of Veterinary Medicine, University College Dublin, Dublin, D04 W6F6, Ireland
| | - Nicole Kops
- Department of Orthopedics and Sports Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, 3015 GD, Netherlands
| | - Manuela Salerno
- Applied and Translational Research Center, IRCCS Rizzoli Orthopaedic Institute, Bologna, 40136, Italy
| | - Joeri Kok
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, 5612 AZ, Netherlands
| | | | | | - Karin Vancíková
- School of Veterinary Medicine, University College Dublin, Dublin, D04 W6F6, Ireland
| | - Bert van Rietbergen
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, 5612 AZ, Netherlands
| | | | | | - Giuseppe Filardo
- Applied and Translational Research Center, IRCCS Rizzoli Orthopaedic Institute, Bologna, 40136, Italy
| | - Eric Farrell
- Department of Oral and Maxillofacial Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, 3015 GD, Netherlands
| | - Gerjo J.V.M. van Osch
- Department of Orthopedics and Sports Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, 3015 GD, Netherlands
- Department of Otorhinolaryngology, Head and Neck Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, 3015 GD, Netherlands
- Department of Biomechanical Engineering, Delft University of Technology, Delft, 2628 CD, Netherlands
| | - Janis Locs
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, LV-1007, Riga, Latvia
- Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, LV-1048, Riga, Latvia
| | - Pieter A.J. Brama
- School of Veterinary Medicine, University College Dublin, Dublin, D04 W6F6, Ireland
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Banihashemian SA, Zamanlui Benisi S, Hosseinzadeh S, Shojaei S, Abbaszadeh HA. Chitosan/Hyaluronan and Alginate-Nanohydroxyapatite Biphasic Scaffold as a Promising Matrix for Osteoarthritis Disorders. Adv Pharm Bull 2024; 14:176-191. [PMID: 38585453 PMCID: PMC10997938 DOI: 10.34172/apb.2024.005] [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: 11/03/2022] [Revised: 06/24/2023] [Accepted: 07/19/2023] [Indexed: 04/09/2024] Open
Abstract
Purpose Regenerative medicine offers new techniques for osteoarthritis (OA) disorders, especially while considering simultaneous chondral and subchondral regenerations. Methods Chitosan and hyaluronan were chemically bound as the chondral phase and the osteogenic layer was prepared with alginate and nano-hydroxyapatite (nHAP). These scaffolds were fixed by fibrin glue as a biphasic scaffold and then examined. Results Scanning electron microscopy (SEM) confirmed the porosity of 61.45±4.51 and 44.145±2.81 % for the subchondral and chondral layers, respectively. The composition analysis by energy dispersive X-ray (EDAX) indicated the various elements of both hydrogels. Also, their mechanical properties indicated that the highest modulus and resistance values corresponded to the biphasic hydrogel as 108.33±5.56 and 721.135±8.21 kPa, despite the same strain value as other groups. Their individual examinations demonstrated the proteoglycan synthesis of the chondral layer and also, the alkaline phosphatase (ALP) activity of the subchondral layer as 13.3±2.2 ng. After 21 days, the cells showed a mineralized surface and a polygonal phenotype, confirming their commitment to bone and cartilage tissues, respectively. Immunostaining of collagen I and II represented greater extracellular matrix (ECM) secretion in the biphasic composite group due to the paracrine effect of the two cell types on each other. Conclusion For the first time, the ability of this biphasic scaffold to regenerate both tissue types was evaluated and the results showed satisfactory cellular commitment to bone and cartilage tissues. Thus, this scaffold can be considered a new strategy for the preparation of implants for OA.
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Affiliation(s)
- Seyed Abdolvahab Banihashemian
- Advanced Medical Sciences and Technologies Department, Faculty of Biomedical Engineering, Central Tehran Branch Islamic Azad University, Tehran, Iran
| | - Soheila Zamanlui Benisi
- Stem Cell Research Center, Tissue Engineering and Regenerative Medicine Institute, Tehran Central Branch, Islamic Azad University, Tehran, Iran
| | - Simzar Hosseinzadeh
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shahrokh Shojaei
- Islamic Azad University Central Tehran Branch, Department of Biomedical Engineering, Tehran, Iran
| | - Hojjat Allah Abbaszadeh
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Hearing Disorders Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Liu M, Shafiq M, Sun B, Wu J, Wang W, El-Newehy M, El-Hamshary H, Morsi Y, Ali O, Khan AUR, Mo X. Composite Superelastic Aerogel Scaffolds Containing Flexible SiO 2 Nanofibers Promote Bone Regeneration. Adv Healthc Mater 2022; 11:e2200499. [PMID: 35670086 DOI: 10.1002/adhm.202200499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/25/2022] [Indexed: 11/08/2022]
Abstract
Repairing irregular-shaped bone defects poses enormous challenges. Scaffolds that can fully fit the defect site and simultaneously induce osteogenesis and angiogenesis hold great promise for bone defect healing. This study aimed to produce superelastic organic/inorganic composite aerogel scaffolds by blending silica nanofibers (SiO2 ) and poly (lactic acid)/gelatin (PLA/gel) nanofibers; the content of SiO2 nanofibers were varied from 0-60 wt% (e.g., PLA/gel, PLA/gel/SiO2 -L, PLA/gel/SiO2 -M, and PLA/gel/SiO2 -H for 0%, 20%, 40%, and 60% of SiO2 nanofibers, respectively) to produce a range of scaffolds. The PLA/gel/SiO2 -M scaffold had excellent elasticity and good mechanical properties. In vitro experiments demonstrated that the silicon ions released from PLA/gel/SiO2 -M scaffolds could promote the differentiation of rat bone marrow-derived mesenchymal stem cells (rBMSCs) into osteoblasts, thereby enhancing alkaline phosphatase activity and bone-related genes expressions. Meanwhile, the released silicon ions also promoted the proliferation of human umbilical vein endothelial cells (HUVECs) and the expression of vascular endothelial growth factors, thereby promoting angiogenesis. The assessment of these scaffolds in a calvarial defect model in rats showed good potential of PLA/gel/SiO2 -M to induce bone regeneration as well as promote osteogenesis and angiogenesis. Overall, these superelastic scaffolds containing flexible SiO2 nanofibers can simultaneously induce osteogenesis and angiogenesis, which may have broad applications for tissue engineering applications. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Mingyue Liu
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Muhammad Shafiq
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Binbin Sun
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Jinglei Wu
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Wei Wang
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Mohamed El-Newehy
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Hany El-Hamshary
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Yosry Morsi
- Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, Boroondara, VIC, 3122, Australia
| | - Onaza Ali
- School of Chemistry and Chemical Engineering, Tiangong University, Tianjin, 300387, China
| | - Atta Ur Rehman Khan
- Department of Biotechnology, The University of Azad Jammu & Kashmir, Muzaffarabad, Pakistan
| | - Xiumei Mo
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
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Silva RCS, Agrelli A, Andrade AN, Mendes-Marques CL, Arruda IRS, Santos LRL, Vasconcelos NF, Machado G. Titanium Dental Implants: An Overview of Applied Nanobiotechnology to Improve Biocompatibility and Prevent Infections. MATERIALS (BASEL, SWITZERLAND) 2022; 15:3150. [PMID: 35591484 PMCID: PMC9104688 DOI: 10.3390/ma15093150] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/20/2022] [Accepted: 04/21/2022] [Indexed: 02/06/2023]
Abstract
This review addresses the different aspects of the use of titanium and its alloys in the production of dental implants, the most common causes of implant failures and the development of improved surfaces capable of stimulating osseointegration and guaranteeing the long-term success of dental implants. Titanium is the main material for the development of dental implants; despite this, different surface modifications are studied aiming to improve the osseointegration process. Nanoscale modifications and the bioactivation of surfaces with biological molecules can promote faster healing when compared to smooth surfaces. Recent studies have also pointed out that gradual changes in the implant, based on the microenvironment of insertion, are factors that may improve the integration of the implant with soft and bone tissues, preventing infections and osseointegration failures. In this context, the understanding that nanobiotechnological surface modifications in titanium dental implants improve the osseointegration process arouses interest in the development of new strategies, which is a highly relevant factor in the production of improved dental materials.
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Affiliation(s)
| | | | | | | | | | | | | | - Giovanna Machado
- Centro de Tecnologias Estratégicas do Nordeste-Cetene, Av. Prof. Luiz Freire, 01, Cidade Universitária, Recife CEP 50740-545, PE, Brazil; (R.C.S.S.); (A.A.); (A.N.A.); (C.L.M.-M.); (I.R.S.A.); (L.R.L.S.); (N.F.V.)
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Hao Z, Li H, Wang Y, Hu Y, Chen T, Zhang S, Guo X, Cai L, Li J. Supramolecular Peptide Nanofiber Hydrogels for Bone Tissue Engineering: From Multihierarchical Fabrications to Comprehensive Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2103820. [PMID: 35128831 PMCID: PMC9008438 DOI: 10.1002/advs.202103820] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 01/02/2022] [Indexed: 05/03/2023]
Abstract
Bone tissue engineering is becoming an ideal strategy to replace autologous bone grafts for surgical bone repair, but the multihierarchical complexity of natural bone is still difficult to emulate due to the lack of suitable biomaterials. Supramolecular peptide nanofiber hydrogels (SPNHs) are emerging biomaterials because of their inherent biocompatibility, satisfied biodegradability, high purity, facile functionalization, and tunable mechanical properties. This review initially focuses on the multihierarchical fabrications by SPNHs to emulate natural bony extracellular matrix. Structurally, supramolecular peptides based on distinctive building blocks can assemble into nanofiber hydrogels, which can be used as nanomorphology-mimetic scaffolds for tissue engineering. Biochemically, bioactive motifs and bioactive factors can be covalently tethered or physically absorbed to SPNHs to endow various functions depending on physiological and pharmacological requirements. Mechanically, four strategies are summarized to optimize the biophysical microenvironment of SPNHs for bone regeneration. Furthermore, comprehensive applications about SPNHs for bone tissue engineering are reviewed. The biomaterials can be directly used in the form of injectable hydrogels or composite nanoscaffolds, or they can be used to construct engineered bone grafts by bioprinting or bioreactors. Finally, continuing challenges and outlook are discussed.
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Affiliation(s)
- Zhuowen Hao
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
| | - Hanke Li
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
| | - Yi Wang
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
| | - Yingkun Hu
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
| | - Tianhong Chen
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
| | - Shuwei Zhang
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
| | - Xiaodong Guo
- Department of OrthopedicsUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Road 1277Wuhan430022China
| | - Lin Cai
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
| | - Jingfeng Li
- Department of OrthopedicsZhongnan Hospital of Wuhan UniversityDonghu Road 169Wuhan430071China
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3D Printing and Bioprinting to Model Bone Cancer: The Role of Materials and Nanoscale Cues in Directing Cell Behavior. Cancers (Basel) 2021; 13:cancers13164065. [PMID: 34439218 PMCID: PMC8391202 DOI: 10.3390/cancers13164065] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/04/2021] [Accepted: 08/06/2021] [Indexed: 12/12/2022] Open
Abstract
Bone cancer, both primary and metastatic, is characterized by a low survival rate. Currently, available models lack in mimicking the complexity of bone, of cancer, and of their microenvironment, leading to poor predictivity. Three-dimensional technologies can help address this need, by developing predictive models that can recapitulate the conditions for cancer development and progression. Among the existing tools to obtain suitable 3D models of bone cancer, 3D printing and bioprinting appear very promising, as they enable combining cells, biomolecules, and biomaterials into organized and complex structures that can reproduce the main characteristic of bone. The challenge is to recapitulate a bone-like microenvironment for analysis of stromal-cancer cell interactions and biological mechanics leading to tumor progression. In this review, existing approaches to obtain in vitro 3D-printed and -bioprinted bone models are discussed, with a focus on the role of biomaterials selection in determining the behavior of the models and its degree of customization. To obtain a reliable 3D bone model, the evaluation of different polymeric matrices and the inclusion of ceramic fillers is of paramount importance, as they help reproduce the behavior of both normal and cancer cells in the bone microenvironment. Open challenges and future perspectives are discussed to solve existing shortcomings and to pave the way for potential development strategies.
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Lee W, Choi JH, Lee S, Song JE, Khang G. Fabrication and Characterization of Silk Fibroin Microfiber-Incorporated Bone Marrow Stem Cell Spheroids to Promote Cell-Cell Interaction and Osteogenesis. ACS OMEGA 2020; 5:18021-18027. [PMID: 32743175 PMCID: PMC7391361 DOI: 10.1021/acsomega.0c01415] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 07/02/2020] [Indexed: 05/04/2023]
Abstract
In this study, silk fibroin microfiber (mSF) was applied to assist spheroid assemblies of rBMSCs (rabbit bone marrow stem cells) (S/B). Alkaline hydrolysis was induced with different times and conditions to manufacture the various sizes of mSF. The mSF was incorporated in the rBMSC with different amounts to optimize proper content for spheroid assembly. The formation of the S/B was confirmed under optical microscopy and SEM. Proliferation and viability were characterized by CCK-8 and live/dead staining. Osteogenesis was analyzed with ALP (alkaline phosphatase) activity studies and real-time polymerase chain reaction. The S/B was successfully produced and displayed uniformly distributed cells and mSF with the presence of a gap in the structure. Proliferation and viability of the S/B significantly increased when compared to rBMSC spheroids (B), which is potentially due to the enhanced transportation of oxygen and nutrients to the cells located in the core region. Additionally, ALP activity and osteogenic markers were significantly upregulated in the optimized S/B under osteogenic media conditions. Overall, a hybrid-spheroid system with a simple 3D cell culture platform provides a potential approach for engineering therapeutic stem cells.
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Kataoka T, Abe S, Tagaya M. Surface-Engineered Design of Efficient Luminescent Europium(III) Complex-Based Hydroxyapatite Nanocrystals for Rapid HeLa Cancer Cell Imaging. ACS APPLIED MATERIALS & INTERFACES 2019; 11:8915-8927. [PMID: 30730134 DOI: 10.1021/acsami.8b22740] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We synthesized hydroxyapatite nanocrystals under the existence of tris(2,2,6,6-tetramethyl-3,5-heptanedionato)europium(III) (EuTH) complex to form inorganic/organic hybrid nanocrystal (EHA). Then, the folic acid derivative (folate N-hydroxysuccinimidyl ester (FA-NHS)) as the targeting ligand for the HeLa cancer cells was immobilized on the EHA by the mediation of both 3-aminopropyltriethoxysilane and methyltriethoxysilane molecules. Here, we investigated the photofunctions based on the interfacial interactions between the FA-NHS and EHA nanohybrids for preparing the novel bioimaging nanomaterials. As a result, the photofunctions could be changed by the FA-NHS molecular occupancy on the EHA. When the molecular occupancy ratio to the EHA surfaces is at around 3-5%, the intense luminescence from the f-f transition of the Eu3+ ions as well as the charge transfer between the EuTH-FA-NHS was observed to exhibit higher quantum efficiency. Moreover, effective dispersibility in phosphate-buffered saline was confirmed with immobilizing the positively charged FA-NHS. The cytotoxicity against the HeLa cells was also evaluated to verify whether the nanohybrids can be the candidate for cell imaging. The affinity and noncytotoxicity between the FA-NHS-immobilized EHA nanohybrids and cells were monitored for 3 days. Red luminescence from the cells could be observed, and the labels with following the cellular shapes were achieved by an additional culture time of 1 h after injecting the FA-NHS-immobilized EHA nanohybrids to the spheres, indicating the rapid bioimaging process. Therefore, this is the first successful report to describe the synthesis of inorganic-organic nanohybrid systems for controlling the EuTH-FA-NHS interactions. The photofunction of the interfacial interactions was successfully designed to provide "efficient luminescent ability" as well as "rapid targeting to the cancer cells" in one particle.
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Affiliation(s)
- Takuya Kataoka
- Department of Materials Science and Technology , Nagaoka University of Technology , Kamitomioka 1603-1 , Nagaoka , Niigata 940-2188 , Japan
| | - Shigeaki Abe
- Graduate School of Dental Medicine , Hokkaido University , Sapporo 060-8586 , Japan
| | - Motohiro Tagaya
- Department of Materials Science and Technology , Nagaoka University of Technology , Kamitomioka 1603-1 , Nagaoka , Niigata 940-2188 , Japan
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Angiogenic and Osteogenic Synergy of Human Mesenchymal Stem Cells and Human Umbilical Vein Endothelial Cells Cocultured on a Nanomatrix. Sci Rep 2018; 8:15749. [PMID: 30356078 PMCID: PMC6200728 DOI: 10.1038/s41598-018-34033-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 10/08/2018] [Indexed: 11/12/2022] Open
Abstract
To date, bone tissue regeneration strategies lack an approach that effectively provides an osteogenic and angiogenic environment conducive to bone growth. In the current study, we evaluated the osteogenic and angiogenic response of human mesenchymal stem cells (hMSCs) and green fluorescent protein-expressing human umbilical vein endothelial cells (GFP-HUVECs) cocultured on a self-assembled, peptide amphiphile nanomatrix functionalized with the cell adhesive ligand RGDS (PA-RGDS). Analysis of alkaline phosphatase activity, von Kossa staining, Alizarin Red quantification, and osteogenic gene expression, indicates a significant synergistic effect between the PA-RGDS nanomatrix and coculture that promoted hMSC osteogenesis. In addition, coculturing on PA-RGDS resulted in enhanced HUVEC network formation and upregulated vascular endothelial growth factor gene and protein expression. Though PA-RGDS and coculturing hMSCs with HUVECs were each previously reported to individually enhance hMSC osteogenesis, this study is the first to demonstrate a synergistic promotion of HUVEC angiogenesis and hMSC osteogenesis by integrating coculturing with the PA-RGDS nanomatrix. We believe that using the combination of hMSC/HUVEC coculture and PA-RGDS substrate is an efficient method for promoting osteogenesis and angiogenesis, which has immense potential as an efficacious, engineered platform for bone tissue regeneration.
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Bibliography. Stem Cells 2018. [DOI: 10.1016/b978-1-78548-254-0.50011-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bhuiyan DB, Middleton JC, Tannenbaum R, Wick TM. Bone regeneration from human mesenchymal stem cells on porous hydroxyapatite-PLGA-collagen bioactive polymer scaffolds. Biomed Mater Eng 2017; 28:671-685. [DOI: 10.3233/bme-171703] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Didarul B. Bhuiyan
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | | | - Rina Tannenbaum
- Department of Materials Science and Engineering, Program in Chemical and Molecular Engineering, Stony Brook University, Stony Brook, NY 11794, USA
| | - Timothy M. Wick
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
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Chen C, Bang S, Cho Y, Lee S, Lee I, Zhang S, Noh I. Research trends in biomimetic medical materials for tissue engineering: 3D bioprinting, surface modification, nano/micro-technology and clinical aspects in tissue engineering of cartilage and bone. Biomater Res 2016; 20:10. [PMID: 27148455 PMCID: PMC4855474 DOI: 10.1186/s40824-016-0057-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 04/07/2016] [Indexed: 11/13/2022] Open
Abstract
This review discusses about biomimetic medical materials for tissue engineering of bone and cartilage, after previous scientific commentary of the invitation-based, Korea-China joint symposium on biomimetic medical materials, which was held in Seoul, Korea, from October 22 to 26, 2015. The contents of this review were evolved from the presentations of that symposium. Four topics of biomimetic medical materials were discussed from different research groups here: 1) 3D bioprinting medical materials, 2) nano/micro-technology, 3) surface modification of biomaterials for their interactions with cells and 4) clinical aspects of biomaterials for cartilage focusing on cells, scaffolds and cytokines.
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Affiliation(s)
- Cen Chen
- />Bio-X Center, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China
| | - Sumi Bang
- />Seoul National University of Science and Technology, 232 Gongneung-roNowongu, Seoul, 11811 Republic of Korea
| | - Younghak Cho
- />Department of Mechanical System Design Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 11811 Republic of Korea
| | - Sahnghoon Lee
- />Department of Orthopaedic Surgery, Seoul National University College of Medicine/Seoul National University Hospital, Seoul, 110-799 Republic of Korea
| | - Inseop Lee
- />Bio-X Center, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, People’s Republic of China
- />Institute of Natural Sciences, Yonsei University, Seoul, 03722 Korea
| | - ShengMin Zhang
- />Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Insup Noh
- />Seoul National University of Science and Technology, 232 Gongneung-roNowongu, Seoul, 11811 Republic of Korea
- />Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811 Republic of Korea
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A Silk Fibroin and Peptide Amphiphile-Based Co-Culture Model for Osteochondral Tissue Engineering. Macromol Biosci 2016; 16:1212-26. [DOI: 10.1002/mabi.201600013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 04/09/2016] [Indexed: 11/07/2022]
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Lee JB, Kim JE, Balikov DA, Bae MS, Heo DN, Lee D, Rim HJ, Lee DW, Sung HJ, Kwon IK. Poly(l-Lactic Acid)/Gelatin Fibrous Scaffold Loaded with Simvastatin/Beta-Cyclodextrin-Modified Hydroxyapatite Inclusion Complex for Bone Tissue Regeneration. Macromol Biosci 2016; 16:1027-38. [PMID: 26996294 DOI: 10.1002/mabi.201500450] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 01/28/2016] [Indexed: 01/25/2023]
Abstract
Recently, the application of nanostructured materials in the field of tissue engineering has garnered attention to mediate treatment and regeneration of bone defects. In this study, poly(l-lactic acid) (PLLA)/gelatin (PG) fibrous scaffolds are fabricated and β-cyclodextrin (βCD) grafted nano-hydroxyapatite (HAp) is coated onto the fibrous scaffold surface via an interaction between βCD and adamantane. Simvastatin (SIM), which is known to promote osteoblast viability and differentiation, is loaded into the remaining βCD. The specimen morphologies are characterized by scanning electron microscopy. The release profile of SIM from the drug loaded scaffold is also evaluated. In vitro proliferation and osteogenic differentiation of human adipose derived stem cells on SIM/HAp coated PG composite scaffolds is characterized by alkaline phosphatase (ALP) activity, mineralization (Alizarin Red S staining), and real time Polymerase chain reaction (PCR). The scaffolds are then implanted into rabbit calvarial defects and analyzed by microcomputed tomography for bone formation after four and eight weeks. These results demonstrate that SIM loaded PLLA/gelatin/HAp-(βCD) scaffolds promote significantly higher ALP activity, mineralization, osteogenic gene expression, and bone regeneration than control scaffolds. This suggests the potential application of this material toward bone tissue engineering.
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Affiliation(s)
- Jung Bok Lee
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Ji Eun Kim
- Department of Maxillofacial Biomedical Engineering and Institute of Oral Biology, School of Dentistry, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Daniel A Balikov
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Min Soo Bae
- Department of Maxillofacial Biomedical Engineering and Institute of Oral Biology, School of Dentistry, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Dong Nyoung Heo
- Department of Maxillofacial Biomedical Engineering and Institute of Oral Biology, School of Dentistry, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Donghyun Lee
- Department of Maxillofacial Biomedical Engineering and Institute of Oral Biology, School of Dentistry, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Hyun Joon Rim
- Department of Maxillofacial Biomedical Engineering and Institute of Oral Biology, School of Dentistry, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Deok-Won Lee
- Department of Oral and Maxillofacial Surgery, Kyung Hee University Dental Hospital at Gang-dong, Seoul, 05278, Republic of Korea
| | - Hak-Joon Sung
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Il Keun Kwon
- Department of Maxillofacial Biomedical Engineering and Institute of Oral Biology, School of Dentistry, Kyung Hee University, Seoul, 02447, Republic of Korea
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Multi-layered collagen-based scaffolds for osteochondral defect repair in rabbits. Acta Biomater 2016; 32:149-160. [PMID: 26724503 DOI: 10.1016/j.actbio.2015.12.034] [Citation(s) in RCA: 136] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 12/15/2015] [Accepted: 12/23/2015] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Identification of a suitable treatment for osteochondral repair presents a major challenge due to existing limitations and an urgent clinical need remains for an off-the-shelf, low cost, one-step approach. A biomimetic approach, where the biomaterial itself encourages cellular infiltration from the underlying bone marrow and provides physical and chemical cues to direct these cells to regenerate the damaged tissue, provides a potential solution. To meet this need, a multi-layer collagen-based osteochondral defect repair scaffold has been developed in our group. AIM The objective of this study was to assess the in vivo response to this scaffold and determine its ability to direct regenerative responses in each layer in order to repair osteochondral tissue in a critical-sized defect in a rabbit knee. METHODS Multi-layer scaffolds, consisting of a bone layer composed of type I collagen (bovine source) and hydroxyapatite (HA), an intermediate layer composed of type I and type II collagen and HA; and a superficial layer composed of type I and type II collagen (porcine source) and hyaluronic acid (HyA), were implanted into critical size (3 × 5 mm) osteochondral defects created in the medial femoral condyle of the knee joint of New Zealand white rabbits and compared to an empty control group. Repair was assessed macroscopically, histologically and using micro-CT analysis at 12 weeks post implantation. RESULTS Analysis of repair tissue demonstrated an enhanced macroscopic appearance in the multi-layer scaffold group compared to the empty group. In addition, diffuse host cellular infiltration in the scaffold group resulted in tissue regeneration with a zonal organisation, with repair of the subchondral bone, formation of an overlying cartilaginous layer and evidence of an intermediate tidemark. CONCLUSION These results demonstrate the potential of this biomimetic multi-layered scaffold to support and guide the host reparative response in the treatment of osteochondral defects. STATEMENT OF SIGNIFICANCE Osteochondral defects, involving cartilage and the underlying subchondral bone, frequently occur in young active patients due to disease or injury. While some treatment options are available, success is limited and patients often eventually require joint replacement. To address this clinical need, a multi-layer collagen-based osteochondral defect repair scaffold designed to direct host-stem cell mediated tissue formation within each region, has been developed in our group. The present study investigates the in vivo response to this scaffold in a critical-sized defect in a rabbit knee. Results shows the scaffolds ability to guide the host reparative response leading to tissue regeneration with a zonal organisation, repair of the subchondral bone, formation of an overlying cartilaginous layer and evidence of an intermediate tidemark.
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Zhou X, Feng W, Qiu K, Chen L, Wang W, Nie W, Mo X, He C. BMP-2 Derived Peptide and Dexamethasone Incorporated Mesoporous Silica Nanoparticles for Enhanced Osteogenic Differentiation of Bone Mesenchymal Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2015; 7:15777-15789. [PMID: 26133753 DOI: 10.1021/acsami.5b02636] [Citation(s) in RCA: 143] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Bone morphogenetic protein-2 (BMP-2), a growth factor that induces osteoblast differentiation and promotes bone regeneration, has been extensively investigated in bone tissue engineering. The peptides of bioactive domains, corresponding to residues 73-92 of BMP-2 become an alternative to reduce adverse side effects caused by the use of high doses of BMP-2 protein. In this study, BMP-2 peptide functionalized mesoporous silica nanoparticles (MSNs-pep) were synthesized by covalently grafting BMP-2 peptide on the surface of nanoparticles via an aminosilane linker, and dexamethasone (DEX) was then loaded into the channel of MSNs to construct nanoparticulate osteogenic delivery systems (DEX@MSNs-pep). The in vitro cell viability of MSNs-pep was tested with bone mesenchymal stem cells (BMSCs) exposure to different particle concentrations, revealing that the functionalized MSNs had better cytocompatibility than their bare counterparts, and the cellular uptake efficiency of MSNs-pep was remarkably larger than that of bare MSNs. The in vitro results also show that the MSNs-pep promoted osteogenic differentiation of BMSCs in terms of the levels of alkaline phosphatase (ALP) activity, calcium deposition, and expression of bone-related protein. Moreover, the osteogenic differentiation of BMSCs can be further enhanced by incorporating of DEX into MSNs-pep. After intramuscular implantation in rats for 3 weeks, the computed tomography (CT) images and histological examination indicate that this nanoparticulate osteogenic delivery system induces effective osteoblast differentiation and bone regeneration in vivo. Collectively, the BMP-2 peptide and DEX incorporated MSNs can act synergistically to enhance osteogenic differentiation of BMSCs, which have potential applications in bone tissue engineering.
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Affiliation(s)
- Xiaojun Zhou
- †College of Chemistry, Chemical Engineering and Biotechnology; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China
- ‡College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Wei Feng
- ‡College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Kexin Qiu
- †College of Chemistry, Chemical Engineering and Biotechnology; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China
- ‡College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Liang Chen
- ‡College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Weizhong Wang
- ‡College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Wei Nie
- ‡College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Xiumei Mo
- †College of Chemistry, Chemical Engineering and Biotechnology; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China
- ‡College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Chuanglong He
- †College of Chemistry, Chemical Engineering and Biotechnology; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China
- ‡College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
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Patil S, Paul S. A comprehensive review on the role of various materials in the osteogenic differentiation of mesenchymal stem cells with a special focus on the association of heat shock proteins and nanoparticles. Cells Tissues Organs 2014; 199:81-102. [PMID: 25401759 DOI: 10.1159/000362226] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2014] [Indexed: 11/19/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have important roles in the area of regenerative medicine and clinical applications due to their pluripotent nature. Osteogenic differentiation of MSCs has been studied extensively using various stimulants to develop models of bone repair. There are several factors that enhance the differentiation of MSCs into bone tissues. This review focuses on the effects of various inducers on the osteoblast differentiation of MSCs at different stages of cellular development. We discuss the various growth factors, hormones, vitamins, cytokines, chemical stimulants, and mechanical forces applied in bioreactors that play an essential role in the proliferation, differentiation, and matrix mineralization of stem cells during osteogenesis. Various nanoparticles have also been used recently for the same purpose and the results are promising. Moreover, we review the role of various stresses, including thermal stress, and the subsequent involvement of heat shock proteins as inducers of the proliferation and differentiation of osteoblasts. We also report how various proteasome inhibitors have been shown to induce proliferation and osteogenic differentiation of MSCs in a number of cases. In this communication, the role of peptide-based scaffolds in osteoblast proliferation and differentiation is also reviewed. Based on the reviewed information, this article proposes novel possibilities for the enhancement of proliferation, differentiation, and migration of osteoblasts from MSCs. © 2014 S. Karger AG, Basel.
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Affiliation(s)
- Supriya Patil
- Structural Biology and Nanomedicine Laboratory, Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, India
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18
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Ban K, Park HJ, Kim S, Andukuri A, Cho KW, Hwang JW, Cha HJ, Kim SY, Kim WS, Jun HW, Yoon YS. Cell therapy with embryonic stem cell-derived cardiomyocytes encapsulated in injectable nanomatrix gel enhances cell engraftment and promotes cardiac repair. ACS NANO 2014; 8:10815-25. [PMID: 25210842 PMCID: PMC4212793 DOI: 10.1021/nn504617g] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 09/11/2014] [Indexed: 05/25/2023]
Abstract
A significant barrier to the therapeutic use of stem cells is poor cell retention in vivo. Here, we evaluate the therapeutic potential and long-term engraftment of cardiomyocytes (CMs) derived from mouse embryonic stem cells (mESCs) encapsulated in an injectable nanomatrix gel consisting of peptide amphiphiles incorporating cell adhesive ligand Arg-Gly-Asp-Ser (PA-RGDS) in experimental myocardial infarction (MI). We cultured rat neonatal CMs in PA-RGDS for 7 days and found that more than 90% of the CMs survived. Next, we intramyocardially injected mouse CM cell line HL-1 CMs with or without PA-RGDS into uninjured hearts. Histologic examination and flow cytometry analysis of digested heart tissues showed approximately 3-fold higher engraftment in the mice that received CMs with PA-RGDS compared to those without PA-RGDS. We further investigated the therapeutic effects and long-term engraftment of mESC-CMs with PA-RGDS on MI in comparison with PBS control, CM-only, and PA-RGDS only. Echocardiography demonstrated that the CM-only and CM+PA-RGDS groups showed higher cardiac function at week 2 compared to other groups. However, from 3 weeks, higher cardiac function was maintained only in the CM+PA-RGDS group; this was sustained for 12 weeks. Confocal microscopic examination of the cardiac tissues harvested at 14 weeks demonstrated sustained engraftment and integration of mESC-CMs into host myocardium in the CM+PA-RGDS group only. This study for the first time demonstrated that PA-RGDS encapsulation can enhance survival of mESC-derived CMs and improve cardiac function post-MI. This nanomatrix gel-mediated stem cell therapy can be a promising option for treating MI.
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Affiliation(s)
- Kiwon Ban
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Hun-Jun Park
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia 30322, United States
- Division of Cardiology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sangsung Kim
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Adinarayana Andukuri
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Kyu-Won Cho
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Jung Wook Hwang
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Ho Jin Cha
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Sang Yoon Kim
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Woan-Sang Kim
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Ho-Wook Jun
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, Alabama 35203, United States
| | - Young-Sup Yoon
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia 30322, United States
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Park SA, Lee JB, Kim YE, Kim JE, Lee JH, Shin JW, Kwon IK, Kim W. Fabrication of biomimetic PCL scaffold using rapid prototyping for bone tissue engineering. Macromol Res 2014. [DOI: 10.1007/s13233-014-2119-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Lyons FG, Gleeson JP, Partap S, Coghlan K, O’Brien FJ. Novel microhydroxyapatite particles in a collagen scaffold: a bioactive bone void filler? Clin Orthop Relat Res 2014; 472:1318-28. [PMID: 24385037 PMCID: PMC3940764 DOI: 10.1007/s11999-013-3438-0] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 12/16/2013] [Indexed: 01/31/2023]
Abstract
BACKGROUND Treatment of segmental bone loss remains a major challenge in orthopaedic surgery. Traditional techniques (eg, autograft) and newer techniques (eg, recombinant human bone morphogenetic protein-2 [rhBMP-2]) have well-established performance limitations and safety concerns respectively. Consequently there is an unmet need for osteoinductive bone graft substitutes that may eliminate or reduce the use of rhBMP-2. QUESTIONS/PURPOSES Using an established rabbit radius osteotomy defect model with positive (autogenous bone graft) and negative (empty sham) control groups, we asked: (1) whether a collagen-glycosaminoglycan scaffold alone can heal the defect, (2) whether the addition of hydroxyapatite particles to the collagen scaffold promote faster healing, and (3) whether the collagen-glycosaminoglycan and collagen-hydroxyapatite scaffolds are able to promote faster healing (by carrying a low dose rhBMP-2). METHODS A 15-mm transosseous radius defect in 4-month-old skeletally mature New Zealand White rabbits were treated with either collagen-hydroxyapatite or collagen-glycosaminoglycan scaffolds with and without rhBMP-2. Autogenous bone graft served as a positive control. Time-series radiographs at four intervals and postmortem micro-CT and histological analysis at 16 weeks were performed. Qualitative histological analysis of postmortem explants, and qualitative and volumetric 3-D analysis of standard radiographs and micro-CT scans enabled direct comparison of healing between test groups. RESULTS Six weeks after implantation the collagen-glycosaminoglycan group had callus occupying greater than ½ the defect, whereas the sham (empty) control defect was still empty and the autogenous bone graft defect was completely filled with unremodeled bone. At 6 weeks, the collagen-hydroxyapatite scaffold groups showed greater defect filling with dense callus compared with the collagen-glycosaminoglycan controls. At 16 weeks, the autogenous bone graft groups showed evidence of early-stage medullary canal formation beginning at the proximal and distal defect borders. The collagen-glycosaminoglycan and collagen-glycosaminoglycan-rhBMP-2 groups had nearly complete medullary canal formation and anatomic healing at 16 weeks. However, collagen-hydroxyapatite-rhBMP-2 scaffolds showed the best levels of healing, exhibiting a dense callus which completely filled the defect. CONCLUSIONS The collagen-hydroxyapatite scaffold showed comparable healing to the current gold standard of autogenous bone graft. It also performed comparably to collagen-glycosaminoglycan-rhBMP-2, a representative commercial device in current clinical use, but without the cost and safety concerns. CLINICAL RELEVANCE The collagen-glycosaminoglycan scaffold may be suitable for a low load-bearing defect. The collagen-hydroxyapatite scaffold may be suitable for a load-bearing defect. The rhBMP-2 containing collagen-glycosaminoglycan and collagen-hydroxyapatite scaffolds may be suitable for established nonunion defects.
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Affiliation(s)
- Frank G. Lyons
- />Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
- />Trinity Centre for Bioengineering, Trinity College Dublin, Dublin 2, Ireland
- />Cappagh National Orthopaedic Hospital, Dublin, Ireland
- />Mater Misericordiae University Hospital, Dublin, Ireland
| | - John P. Gleeson
- />Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
- />Trinity Centre for Bioengineering, Trinity College Dublin, Dublin 2, Ireland
| | - Sonia Partap
- />Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
- />Trinity Centre for Bioengineering, Trinity College Dublin, Dublin 2, Ireland
| | - Karen Coghlan
- />Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
- />Trinity Centre for Bioengineering, Trinity College Dublin, Dublin 2, Ireland
- />Advanced Materials and Bioengineering Research (AMBER) Centre, Royal College of Surgeons in Ireland, Trinity College Dublin, Dublin, Ireland
| | - Fergal J. O’Brien
- />Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
- />Trinity Centre for Bioengineering, Trinity College Dublin, Dublin 2, Ireland
- />Advanced Materials and Bioengineering Research (AMBER) Centre, Royal College of Surgeons in Ireland, Trinity College Dublin, Dublin, Ireland
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Kim H, Kim HM, Jang JE, Kim CM, Kim EY, Lee D, Khang G. Osteogenic Differentiation of Bone Marrow Stem Cell in Poly(Lactic-co-Glycolic Acid) Scaffold Loaded Various Ratio of Hydroxyapatite. Int J Stem Cells 2013; 6:67-74. [PMID: 24298375 DOI: 10.15283/ijsc.2013.6.1.67] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/30/2013] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Hydroxyapatite has biocompatibility and bioactivity and similar to bone of in human body. The purpose of this study is to evaluate osteogenic differentiation of bone marrow stem cell (BMSC) in PLGA Scaffold added various ratio of hydroxyapatite (HAp). METHODS AND RESULTS PLGA and PLGA/HAp scaffold were prepared using solvent casting/salt-leaching method. BMSC was seeded on the PLGA and PLGA/HAp scaffold and the samples were cultured in 37℃ incubator with 5% CO2 for 28 days. Alkaline phosphatase (ALP) was carried out to evaluate alkaline phosphatase activity at 1, 3, 7, 10 and 14 days. Alizarin Red S stating was performed to identify calcium in scaffold at 1, 7, 14, 21 and 28 days. Compressive strength was measured to evaluate mechanical property of scaffold. To confirm cell viability, MTT was carried out at 1, 3, 7, 14 and 28 days. RT-PCR was performed to verify specific marker expression of osteoblast and stem cell at 7, 14, 21 and 28 days. CONCLUSIONS Osteogenic differentiation of BMSC was confirmed through ALP, RT-PCR, and alizarin red S staining in this study. These results suggest that HAp helps osteogenic differentiation of BMSC.
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Affiliation(s)
- Hyeongseok Kim
- Departments of BIN Fusion Technology ; Polymer-Nano Science & Technology, Chonbuk National University, Jeonju, Korea
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Wu KC, Tseng CL, Wu CC, Kao FC, Tu YK, C So E, Wang YK. Nanotechnology in the regulation of stem cell behavior. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2013; 14:054401. [PMID: 27877605 PMCID: PMC5090368 DOI: 10.1088/1468-6996/14/5/054401] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 09/16/2013] [Indexed: 05/19/2023]
Abstract
Stem cells are known for their potential to repair damaged tissues. The adhesion, growth and differentiation of stem cells are likely controlled by the surrounding microenvironment which contains both chemical and physical cues. Physical cues in the microenvironment, for example, nanotopography, were shown to play important roles in stem cell fate decisions. Thus, controlling stem cell behavior by nanoscale topography has become an important issue in stem cell biology. Nanotechnology has emerged as a new exciting field and research from this field has greatly advanced. Nanotechnology allows the manipulation of sophisticated surfaces/scaffolds which can mimic the cellular environment for regulating cellular behaviors. Thus, we summarize recent studies on nanotechnology with applications to stem cell biology, including the regulation of stem cell adhesion, growth, differentiation, tracking and imaging. Understanding the interactions of nanomaterials with stem cells may provide the knowledge to apply to cell-scaffold combinations in tissue engineering and regenerative medicine.
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Affiliation(s)
- King-Chuen Wu
- Department of Anesthesiology, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Ching-Li Tseng
- Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, Taipei, Taiwan
| | - Chi-Chang Wu
- Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, Taipei, Taiwan
| | - Feng-Chen Kao
- Department of Orthopedics, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Yuan-Kun Tu
- Department of Orthopedics, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Edmund C So
- Department of Anesthesiology, Tainan Municipal An Nan Hospital, China Medical University, Tainan, Taiwan
| | - Yang-Kao Wang
- Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, Taipei, Taiwan
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan
- Medical Device Innovation Center, National Cheng-Kung University, Tainan, Taiwan
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Lim DJ, Antipenko SV, Vines JB, Andukuri A, Hwang PTJ, Hadley NT, Rahman SM, Corbett JA, Jun HW. Improved MIN6 β-cell function on self-assembled peptide amphiphile nanomatrix inscribed with extracellular matrix-derived cell adhesive ligands. Macromol Biosci 2013; 13:1404-12. [PMID: 23966265 DOI: 10.1002/mabi.201300155] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 06/03/2013] [Indexed: 02/02/2023]
Abstract
Understanding the role of the pancreatic extracellular matrix (ECM) in supporting islet survival and function drives the pursuit to create biomaterials that imitate and restore the pancreatic ECM microenvironment. To create an ECM mimic holding bioinductive cues for β-cells, self-assembled peptide amphiphiles (PAs) inscribed with four selected ECM-derived cell adhesive ligands are synthesized. After 7 days, compared to control groups cultured on biologically inert substrates, MIN6 β-cells cultured on PAs functionalized with YIGSR and RGDS cell adhesive ligands exhibit elevated insulin secretion in responses to glucose and also form β-cell clusters. These findings suggest that the self-assembled PA nanomatrix may be utilized to improve pancreatic islet transplantation for treating type 1 diabetes.
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Affiliation(s)
- Dong-Jin Lim
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, Alabama 35233, USA
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Çakmak S, Çakmak AS, Gümüşderelioğlu M. RGD-bearing peptide-amphiphile-hydroxyapatite nanocomposite bone scaffold: an in vitro study. Biomed Mater 2013; 8:045014. [PMID: 23860136 DOI: 10.1088/1748-6041/8/4/045014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In this study, a fibrous nanocomposite scaffold was developed by combining hydroxyapatite (HA) fibers produced by electrospinning method and arginine-glycine-aspartic acid (RGD)-bearing peptide-amphiphile (PA) gel (PA-RGD) produced by self-assembly and gelation induced by calcium ions. Scanning electron microscope, transmission electron microscope and atomic force microscopy imaging confirmed the successful production of inorganic and organic components of this nanocomposite material. Within the HA, the presence of a CaCO3 phase, improving biodegradation, was shown by x-ray diffraction analysis. The in vitro effectiveness of the PA-RGD/HA scaffold was determined on MC3T3-E1 preosteoblast cultures in comparison with HA matrix and PA-RGD gel. The highest cellular proliferation was obtained on PA-RGD gel, however, alkaline phosphatase activity results denoted that osteogenic differentiation of the cells is more favorable on HA containing matrices with respect to PA-RGD itself. Microscopic observations revealed that all three matrices support cell attachment and proliferation. Moreover, cells form bridges between the HA and PA-RGD components of the nanocomposite scaffold, indicating the integrity of the biphasic components. According to the real time-polymerase chain reaction (RT-PCR) analyses, MC3T3-E1 cells expressed significantly higher osteocalcin on all matrices. Bone sialoprotein (BSP) expression level is ten-fold higher on PA-RGD/HA nanocomposite scaffolds than that of HA and PA-RGD scaffolds and the elevated expression of BSP on PA-RGD/HA nanocomposite scaffolds suggested higher mineralized matrix on this novel scaffold. Based on the results obtained in this study, the combination of HA nanofibers and PA-RGD gel takes advantage of good structural integrity during the cell culture, besides the osteoinductive and osteoconductive properties of the nanofibrous scaffold.
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Affiliation(s)
- Soner Çakmak
- Nanotechnology and Nanomedicine Department, Hacettepe University, Ankara, Turkey
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