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Bandyopadhyay A, Mitra I, Goodman SB, Kumar M, Bose S. Improving Biocompatibility for Next Generation of Metallic Implants. PROGRESS IN MATERIALS SCIENCE 2023; 133:101053. [PMID: 36686623 PMCID: PMC9851385 DOI: 10.1016/j.pmatsci.2022.101053] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The increasing need for joint replacement surgeries, musculoskeletal repairs, and orthodontics worldwide prompts emerging technologies to evolve with healthcare's changing landscape. Metallic orthopaedic materials have a shared application history with the aerospace industry, making them only partly efficient in the biomedical domain. However, suitability of metallic materials in bone tissue replacements and regenerative therapies remains unchallenged due to their superior mechanical properties, eventhough they are not perfectly biocompatible. Therefore, exploring ways to improve biocompatibility is the most critical step toward designing the next generation of metallic biomaterials. This review discusses methods of improving biocompatibility of metals used in biomedical devices using surface modification, bulk modification, and incorporation of biologics. Our investigation spans multiple length scales, from bulk metals to the effect of microporosities, surface nanoarchitecture, and biomolecules such as DNA incorporation for enhanced biological response in metallic materials. We examine recent technologies such as 3D printing in alloy design and storing surface charge on nanoarchitecture surfaces, metal-on-metal, and ceramic-on-metal coatings to present a coherent and comprehensive understanding of the subject. Finally, we consider the advantages and challenges of metallic biomaterials and identify future directions.
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Affiliation(s)
- Amit Bandyopadhyay
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164-2920
| | - Indranath Mitra
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164-2920
| | - Stuart B. Goodman
- Department of Orthopedic Surgery, Stanford University Medical Center, Redwood City, CA 94063
| | | | - Susmita Bose
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164-2920
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Mikulčić M, Tabrizi-Wizsy NG, Bernhart EM, Asslaber M, Trummer C, Windischhofer W, Sattler W, Malle E, Hrzenjak A. 15d-PGJ 2 Promotes ROS-Dependent Activation of MAPK-Induced Early Apoptosis in Osteosarcoma Cell In Vitro and in an Ex Ovo CAM Assay. Int J Mol Sci 2021; 22:ijms222111760. [PMID: 34769194 PMCID: PMC8583949 DOI: 10.3390/ijms222111760] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/21/2021] [Accepted: 10/26/2021] [Indexed: 02/07/2023] Open
Abstract
Osteosarcoma (OS) is the most common type of bone tumor, and has limited therapy options. 15-Deoxy-Δ12,14-prostaglandin J2 (15d-PGJ2) has striking anti-tumor effects in various tumors. Here, we investigated molecular mechanisms that mediate anti-tumor effects of 15d-PGJ2 in different OS cell lines. Human U2-OS and Saos-2 cells were treated with 15d-PGJ2 and cell survival was measured by MTT assay. Cell proliferation and motility were investigated by scratch assay, the tumorigenic capacity by colony forming assay. Intracellular ROS was estimated by H2DCFDA. Activation of MAPKs and cytoprotective proteins was detected by immunoblotting. Apoptosis was detected by immunoblotting and Annexin V/PI staining. The ex ovo CAM model was used to study growth capability of grafted 15d-PGJ2-treated OS cells, followed by immunohistochemistry with hematoxylin/eosin and Ki-67. 15d-PGJ2 substantially decreased cell viability, colony formation and wound closure capability of OS cells. Non-malignant human osteoblast was less affected by 15d-PGJ2. 15d-PGJ2 induced rapid intracellular ROS production and time-dependent activation of MAPKs (pERK1/2, pJNK and pp38). Tempol efficiently inhibited 15d-PGJ2-induced ERK1/2 activation, while N-acetylcystein and pyrrolidine dithiocarbamate were less effective. Early but weak activation of cytoprotective proteins was overrun by induction of apoptosis. A structural analogue, 9,10-dihydro-15d-PGJ2, did not show toxic effects in OS cells. In the CAM model, we grafted OS tumors with U2-OS, Saos-2 and MG-63 cells. 15d-PGJ2 treatment resulted in significant growth inhibition, diminished tumor tissue density, and reduced tumor cell proliferation for all cell lines. Our in vitro and CAM data suggest 15d-PGJ2 as a promising natural compound to interfere with OS tumor growth.
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Affiliation(s)
- Mateja Mikulčić
- Department of Internal Medicine, Division of Pulmonology, Medical University of Graz, 8036 Graz, Austria;
| | - Nassim Ghaffari Tabrizi-Wizsy
- Otto Loewi Research Center, Division of Immunology and Pathophysiology, Medical University of Graz, 8010 Graz, Austria;
| | - Eva M. Bernhart
- Gottfried Schatz Research Center, Division of Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria; (E.M.B.); (C.T.); (W.S.); (E.M.)
| | - Martin Asslaber
- Diagnostic and Research Institute of Pathology, Medical University of Graz, 8010 Graz, Austria;
| | - Christopher Trummer
- Gottfried Schatz Research Center, Division of Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria; (E.M.B.); (C.T.); (W.S.); (E.M.)
- Department of Pediatrics and Adolescence Medicine, Medical University of Graz, 8036 Graz, Austria;
| | - Werner Windischhofer
- Department of Pediatrics and Adolescence Medicine, Medical University of Graz, 8036 Graz, Austria;
| | - Wolfgang Sattler
- Gottfried Schatz Research Center, Division of Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria; (E.M.B.); (C.T.); (W.S.); (E.M.)
| | - Ernst Malle
- Gottfried Schatz Research Center, Division of Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria; (E.M.B.); (C.T.); (W.S.); (E.M.)
| | - Andelko Hrzenjak
- Department of Internal Medicine, Division of Pulmonology, Medical University of Graz, 8036 Graz, Austria;
- Ludwig Boltzmann Institute for Lung Vascular Research, Medical University of Graz, 8010 Graz, Austria
- Correspondence: ; Tel.: +43-316-385-73860
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Jones K, Williams C, Yuan T, Digeorge-Foushee AM, Chambers Wilson R, Burton T, Hamlin CN, Martinez L. Comparative in vitro study of commercially available products for alveolar ridge preservation. J Periodontol 2021; 93:403-411. [PMID: 34114665 DOI: 10.1002/jper.21-0087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 05/10/2021] [Accepted: 05/23/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND Ridge preservation is performed by placing a biocompatible product, following tooth extraction, to maintain bone volume. However, current ridge preservation therapies do not always maintain the volume required for future implant placement. Variations in surgical technique and material selection contribute to determining clinical outcomes. The wide variety of grafting materials available and conflicting efficacy reports make selecting the appropriate graft materials challenging. To investigate how different commercially available ridge preservation products might perform clinically: Helistat (collagen control) (Material 1), OsteoGen Plug (Material 2), Bio-Oss Collagen (Material 3), and J-Bone (native bone) (Material 4) were evaluated. METHODS These products underwent field emission scanning electron microscopy, microcomputed tomography, helium pycnometry, and infrared spectra analysis. Human osteosarcomas were incubated on products and proliferation was monitored with CCK-8 and visualized with confocal microscopy. Scaffold osteoconductivity was evaluated through the cellular production of proteins osteocalcin, osteonectin, and osteopontin. RESULTS Results indicated that products varied in porosity and pore interconnectivity. Although Material 3 was chemically similar to Material 4, Material 2 demonstrated significantly better biocompatibility. Functionally, Material 1 and Material 2 elicited higher osteonectin release than Material 3 and Material 4 which suggests the latter products suppress endogenous osteonectin secretion. Furthermore, osteopontin secretion was minimal for all products, while osteocalcin was elevated. This seems to suggest that high levels of mineralization might be deleterious for bone regeneration. CONCLUSIONS Although all products are marketed as effective preservation products, the results demonstrated high variability in physical, chemical, and biological effects; however, this study suggests a product with higher ratio of collagen to mineral component may have the most desirable effects for the use in alveolar ridge preservation.
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Affiliation(s)
- Kirstin Jones
- Naval Medical Research Unit San Antonio, JBSA, Fort Sam Houston, TX.,University of Texas at San Antonio, San Antonio, TX
| | - Cortes Williams
- Naval Medical Research Unit San Antonio, JBSA, Fort Sam Houston, TX
| | - Tony Yuan
- 59th Medical Wing Science and Technology, JBSA, Lackland, TX
| | - Ann Marie Digeorge-Foushee
- 59th Medical Wing Science and Technology, JBSA, Lackland, TX.,General Dynamics Information Technology, Reston, VA
| | | | - Tarea Burton
- Naval Medical Research Unit San Antonio, JBSA, Fort Sam Houston, TX
| | | | - Luis Martinez
- Naval Medical Research Unit San Antonio, JBSA, Fort Sam Houston, TX
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Choi H, Park KH, Jung N, Shim JS, Moon HS, Kim HJ, Oh SH, Kim YY, Ku SY, Park YB. In Vivo Study for Clinical Application of Dental Stem Cell Therapy Incorporated with Dental Titanium Implants. MATERIALS 2021; 14:ma14020381. [PMID: 33466799 PMCID: PMC7829878 DOI: 10.3390/ma14020381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/06/2021] [Accepted: 01/07/2021] [Indexed: 12/31/2022]
Abstract
The aim of this study was to investigate the behavior of dental-derived human mesenchymal stem cells (d-hMSCs) in response to differently surface-treated implants and to evaluate the effect of d-hMSCs on local osteogenesis around an implant in vivo. d-hMSCs derived from alveolar bone were established and cultured on machined, sandblasted and acid-etched (SLA)-treated titanium discs with and without osteogenic induction medium. Their morphological and osteogenic potential was assessed by scanning electron microscopy (SEM) and real-time polymerase chain reaction (RT-PCR) via mixing of 5 × 106 of d-hMSCs with 1 mL of Metrigel and 20 μL of gel-cell mixture, which was dispensed into the defect followed by the placement of customized mini-implants (machined, SLA-treated implants) in New Zealand white rabbits. Following healing periods of 2 weeks and 12 weeks, the obtained samples in each group were analyzed radiographically, histomorphometrically and immunohistochemically. The quantitative change in osteogenic differentiation of d-hMSCs was identified according to the type of surface treatment. Radiographic analysis revealed that an increase in new bone formation was statistically significant in the d-hMSCs group. Histomorphometric analysis was in accordance with radiographic analysis, showing the significantly increased new bone formation in the d-hMSCs group regardless of time of sacrifice. Human nuclei A was identified near the area where d-hMSCs were implanted but the level of expression was found to be decreased as time passed. Within the limitations of the present study, in this animal model, the transplantation of d-hMSCs enhanced the new bone formation around an implant and the survival and function of the stem cells was experimentally proven up to 12 weeks post-sacrifice.
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Affiliation(s)
- Hyunmin Choi
- BK21 Plus Project, Oral Science Research Center, Department of Prosthodontics, Yonsei University College of Dentistry, Seoul 03722, Korea; (H.C.); (K.-H.P.); (N.J.); (J.-S.S.); (H.-S.M.)
| | - Kyu-Hyung Park
- BK21 Plus Project, Oral Science Research Center, Department of Prosthodontics, Yonsei University College of Dentistry, Seoul 03722, Korea; (H.C.); (K.-H.P.); (N.J.); (J.-S.S.); (H.-S.M.)
| | - Narae Jung
- BK21 Plus Project, Oral Science Research Center, Department of Prosthodontics, Yonsei University College of Dentistry, Seoul 03722, Korea; (H.C.); (K.-H.P.); (N.J.); (J.-S.S.); (H.-S.M.)
| | - June-Sung Shim
- BK21 Plus Project, Oral Science Research Center, Department of Prosthodontics, Yonsei University College of Dentistry, Seoul 03722, Korea; (H.C.); (K.-H.P.); (N.J.); (J.-S.S.); (H.-S.M.)
| | - Hong-Seok Moon
- BK21 Plus Project, Oral Science Research Center, Department of Prosthodontics, Yonsei University College of Dentistry, Seoul 03722, Korea; (H.C.); (K.-H.P.); (N.J.); (J.-S.S.); (H.-S.M.)
| | - Hyung-Jun Kim
- Department of Oral & Maxillofacial Surgery, Oral Science Research Institute, Yonsei University College of Dentistry, Seoul 03722, Korea;
| | - Seung-Han Oh
- Department of Dental Biomaterials, Institute of Biomaterials-Implant, Wonkwang University School of Dentistry, Iksan 54538, Korea;
| | - Yoon Young Kim
- Institute of Reproductive Medicine and Population, Medical Research Center, Soul National University, Seoul 03087, Korea; (Y.Y.K.); (S.-Y.K.)
| | - Seung-Yup Ku
- Institute of Reproductive Medicine and Population, Medical Research Center, Soul National University, Seoul 03087, Korea; (Y.Y.K.); (S.-Y.K.)
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Young-Bum Park
- BK21 Plus Project, Oral Science Research Center, Department of Prosthodontics, Yonsei University College of Dentistry, Seoul 03722, Korea; (H.C.); (K.-H.P.); (N.J.); (J.-S.S.); (H.-S.M.)
- Correspondence: ; Tel.: +82-2-2228-3164
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Use of in vitro bone models to screen for altered bone metabolism, osteopathies, and fracture healing: challenges of complex models. Arch Toxicol 2020; 94:3937-3958. [PMID: 32910238 PMCID: PMC7655582 DOI: 10.1007/s00204-020-02906-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 09/03/2020] [Indexed: 02/06/2023]
Abstract
Approx. every third hospitalized patient in Europe suffers from musculoskeletal injuries or diseases. Up to 20% of these patients need costly surgical revisions after delayed or impaired fracture healing. Reasons for this are the severity of the trauma, individual factors, e.g, the patients’ age, individual lifestyle, chronic diseases, medication, and, over 70 diseases that negatively affect the bone quality. To investigate the various disease constellations and/or develop new treatment strategies, many in vivo, ex vivo, and in vitro models can be applied. Analyzing these various models more closely, it is obvious that many of them have limits and/or restrictions. Undoubtedly, in vivo models most completely represent the biological situation. Besides possible species-specific differences, ethical concerns may question the use of in vivo models especially for large screening approaches. Challenging whether ex vivo or in vitro bone models can be used as an adequate replacement for such screenings, we here summarize the advantages and challenges of frequently used ex vivo and in vitro bone models to study disturbed bone metabolism and fracture healing. Using own examples, we discuss the common challenge of cell-specific normalization of data obtained from more complex in vitro models as one example of the analytical limits which lower the full potential of these complex model systems.
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Material-Dependent Formation and Degradation of Bone Matrix-Comparison of Two Cryogels. Bioengineering (Basel) 2020; 7:bioengineering7020052. [PMID: 32517006 PMCID: PMC7378764 DOI: 10.3390/bioengineering7020052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 01/19/2023] Open
Abstract
Cryogels represent ideal carriers for bone tissue engineering. We recently described the osteogenic potential of cryogels with different protein additives, e.g., platelet-rich plasma (PRP). However, these scaffolds raised concerns as different toxic substances are required for their preparation. Therefore, we developed another gelatin (GEL)-based cryogel. This study aimed to compare the two scaffolds regarding their physical characteristics and their influence on osteogenic and osteoclastic cells. Compared to the PRP scaffolds, GEL scaffolds had both larger pores and thicker walls, resulting in a lower connective density. PRP scaffolds, with crystalized calcium phosphates on the surface, were significantly stiffer but less mineralized than GEL scaffolds with hydroxyapatite incorporated within the matrix. The GEL scaffolds favored adherence and proliferation of the osteogenic SCP-1 and SaOS-2 cells. Macrophage colony-stimulating factor (M-CSF) and osteoprotegerin (OPG) levels seemed to be induced by GEL scaffolds. Levels of other osteoblast and osteoclast markers were comparable between the two scaffolds. After 14 days, mineral content and stiffness of the cryogels were increased by SCP-1 and SaOS-2 cells, especially of PRP scaffolds. THP-1 cell-derived osteoclastic cells only reduced mineral content and stiffness of PRP cryogels. In summary, both scaffolds present powerful advantages; however, the possibility to altered mineral content and stiffness may be decisive when it comes to using PRP or GEL scaffolds for bone tissue engineering.
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Wilkesmann S, Fellenberg J, Nawaz Q, Reible B, Moghaddam A, Boccaccini AR, Westhauser F. Primary osteoblasts, osteoblast precursor cells or osteoblast‐like cell lines: Which human cell types are (most) suitable for characterizing 45S5‐bioactive glass? J Biomed Mater Res A 2019; 108:663-674. [DOI: 10.1002/jbm.a.36846] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 11/12/2019] [Accepted: 11/15/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Sebastian Wilkesmann
- Center of Orthopedics, Traumatology, and Spinal Cord Injury Heidelberg University Hospital Heidelberg Germany
| | - Jörg Fellenberg
- Center of Orthopedics, Traumatology, and Spinal Cord Injury Heidelberg University Hospital Heidelberg Germany
| | - Qaisar Nawaz
- Institute of Biomaterials University of Erlangen‐Nuremberg Erlangen Germany
| | - Bruno Reible
- Center of Orthopedics, Traumatology, and Spinal Cord Injury Heidelberg University Hospital Heidelberg Germany
| | - Arash Moghaddam
- ATORG—Aschaffenburg Trauma and Orthopedic Research Group, Center for Trauma Surgery, Orthopedics, and Sports Medicine Klinikum Aschaffenburg‐Alzenau Aschaffenburg Germany
| | - Aldo R. Boccaccini
- Institute of Biomaterials University of Erlangen‐Nuremberg Erlangen Germany
| | - Fabian Westhauser
- Center of Orthopedics, Traumatology, and Spinal Cord Injury Heidelberg University Hospital Heidelberg Germany
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Su Y, Cockerill I, Zheng Y, Tang L, Qin YX, Zhu D. Biofunctionalization of metallic implants by calcium phosphate coatings. Bioact Mater 2019; 4:196-206. [PMID: 31193406 PMCID: PMC6529680 DOI: 10.1016/j.bioactmat.2019.05.001] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/26/2019] [Accepted: 05/14/2019] [Indexed: 01/07/2023] Open
Abstract
Metallic materials have been extensively applied in clinical practice due to their unique mechanical properties and durability. Recent years have witnessed broad interests and advances on surface functionalization of metallic implants for high-performance biofunctions. Calcium phosphates (CaPs) are the major inorganic component of bone tissues, and thus owning inherent biocompatibility and osseointegration properties. As such, they have been widely used in clinical orthopedics and dentistry. The new emergence of surface functionalization on metallic implants with CaP coatings shows promise for a combination of mechanical properties from metals and various biofunctions from CaPs. This review provides a brief summary of state-of-art of surface biofunctionalization on implantable metals by CaP coatings. We first glance over different types of CaPs with their coating methods and in vitro and in vivo performances, and then give insight into the representative biofunctions, i.e. osteointegration, corrosion resistance and biodegradation control, and antibacterial property, provided by CaP coatings for metallic implant materials.
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Affiliation(s)
- Yingchao Su
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA
| | - Irsalan Cockerill
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA
| | - Yufeng Zheng
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, China
| | - Liping Tang
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, USA
| | - Yi-Xian Qin
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA
| | - Donghui Zhu
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA
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Häussling V, Deninger S, Vidoni L, Rinderknecht H, Ruoß M, Arnscheidt C, Athanasopulu K, Kemkemer R, Nussler AK, Ehnert S. Impact of Four Protein Additives in Cryogels on Osteogenic Differentiation of Adipose-Derived Mesenchymal Stem Cells. Bioengineering (Basel) 2019; 6:E67. [PMID: 31394780 PMCID: PMC6784125 DOI: 10.3390/bioengineering6030067] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 07/30/2019] [Accepted: 08/05/2019] [Indexed: 12/21/2022] Open
Abstract
Human adipose-derived mesenchymal stem/stromal cells (Ad-MSCs) have great potential for bone tissue engineering. Cryogels, mimicking the three-dimensional structure of spongy bone, represent ideal carriers for these cells. We developed poly(2-hydroxyethyl methacrylate) cryogels, containing hydroxyapatite to mimic inorganic bone matrix. Cryogels were additionally supplemented with different types of proteins, namely collagen (Coll), platelet-rich plasma (PRP), immune cells-conditioned medium (CM), and RGD peptides (RGD). The different protein components did not affect scaffolds' porosity or water-uptake capacity, but altered pore size and stiffness. Stiffness was highest in scaffolds with PRP (82.3 kPa), followed by Coll (55.3 kPa), CM (45.6 kPa), and RGD (32.8 kPa). Scaffolds with PRP, CM, and Coll had the largest pore diameters (~60 µm). Ad-MSCs were osteogenically differentiated on these scaffolds for 14 days. Cell attachment and survival rates were comparable for all four scaffolds. Runx2 and osteocalcin levels only increased in Ad-MSCs on Coll, PRP and CM cryogels. Osterix levels increased slightly in Ad-MSCs differentiated on Coll and PRP cryogels. With differentiation alkaline phosphatase activity decreased under all four conditions. In summary, besides Coll cryogel our PRP cryogel constitutes as an especially suitable carrier for bone tissue engineering. This is of special interest, as this scaffold can be generated with patients' PRP.
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Affiliation(s)
- Victor Häussling
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany
| | - Sebastian Deninger
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany
| | - Laura Vidoni
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany
| | - Helen Rinderknecht
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany
| | - Marc Ruoß
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany
| | - Christian Arnscheidt
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany
| | - Kiriaki Athanasopulu
- Department of Applied Chemistry Reutlingen University, 72762 Reutlingen, Germany
| | - Ralf Kemkemer
- Department of Applied Chemistry Reutlingen University, 72762 Reutlingen, Germany
| | - Andreas K Nussler
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany.
| | - Sabrina Ehnert
- Siegfried Weller Research Institute, BG Unfallklinik Tuebingen, Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, 72074 Tübingen, Germany
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Fang CH, Lin YW, Sun JS, Lin FH. The chitosan/tri-calcium phosphate bio-composite bone cement promotes better osteo-integration: an in vitro and in vivo study. J Orthop Surg Res 2019; 14:162. [PMID: 31142377 PMCID: PMC6542077 DOI: 10.1186/s13018-019-1201-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 05/15/2019] [Indexed: 12/15/2022] Open
Abstract
Background Polymethylmethacrylate bone cement has a variety of applications in orthopedic surgery, but it also has some shortcomings such as high heat generation during polymerization and poor integration with bone tissue. In this study, a bio-composite bone cement composed of tri-calcium phosphate and chitosan as additives to acrylic bone cement was developed. Our hypothesis is that this new bio-composite bone cement has a better osteo-integration than pure polymethyl methacrylate cement. Methods Physiological composition, i.e., 65 wt% inorganic and 35 wt% organic components, of tri-calcium phosphate and chitosan contents was selected as degradable additives to replace acrylic bone cement. A series of properties such as exothermic temperature changes, setting time, bio-mechanical characteristics, degradation behaviors, and in vitro cytotoxicity were examined. Preliminary in vivo animal study was also performed. Results The results showed that the bio-composite bone cement exhibited lower curing temperature, longer setting time, higher weight loss and porosity after degradation, lower compressive Young’s modulus, and ultimate compressive strength as compared with those of pure polymethyl methacrylate cement. Cell proliferation tests demonstrated that the bio-composite bone cement was non-cytotoxic, and the in vivo tests revealed that was more osteo-conductive. Conclusions The results indicated that the modified chitosan/tri-calcium phosphate/polymethyl methacrylate bio-composites bone cement could be degraded gradually and create rougher surfaces that would be beneficial to cell adherence and growth. This new bio-composite bone cement has potential in clinical application. Our future studies will focus on long-term implantation to investigate the stability of the bio-composite bone cement in long-term implantation.
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Affiliation(s)
- Chih-Hsiang Fang
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd, Taipei, 10617, Taiwan
| | - Yi-Wen Lin
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd, Taipei, 10617, Taiwan
| | - Jui-Sheng Sun
- Department of Orthopedic Surgery, National Taiwan University Hospital, No. 7, Chung-Shan South Road, Taipei, 10002, Taiwan. .,Department of Orthopedic Surgery, College of Medicine, National Taiwan University, No. 1, Sec. 1, Ren-Ai Rd, Taipei, 10051, Taiwan.
| | - Feng-Huei Lin
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd, Taipei, 10617, Taiwan. .,Division of Biomedical Engineering and Nanomedicine Research, National Health Research Institutes, No. 35, Keyan Road, Zhunan, Miaoli County, 35053, Taiwan.
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Baird A, Dominguez Falcon N, Saeed A, Guest DJ. Biocompatible Three-Dimensional Printed Thermoplastic Scaffold for Osteoblast Differentiation of Equine Induced Pluripotent Stem Cells. Tissue Eng Part C Methods 2019; 25:253-261. [DOI: 10.1089/ten.tec.2018.0343] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Arabella Baird
- Centre for Preventive Medicine, Animal Health Trust, Newmarket, United Kingdom
| | | | - Aram Saeed
- School of Pharmacy, University of East Anglia, Norwich, United Kingdom
| | - Deborah Jane Guest
- Centre for Preventive Medicine, Animal Health Trust, Newmarket, United Kingdom
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Cao Q, He Z, Sun WQ, Fan G, Zhao J, Bao N, Ye T. Improvement of calcium phosphate scaffold osteogenesis in vitro via combination of glutamate-modified BMP-2 peptides. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 96:412-418. [PMID: 30606550 DOI: 10.1016/j.msec.2018.11.048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 10/11/2018] [Accepted: 11/27/2018] [Indexed: 01/31/2023]
Abstract
Alpha-tricalcium phosphate (α-TCP) based porous scaffolds have superior osteoconduction and osteoinduction in bone tissue engineering, furthermore, these 3D porous scaffolds can be used as efficient drug delivery carriers. In the concept of tissue engineering, the "drugs" could be defined as drug molecules or biomacromolecules, even cells. These "drugs" have endowed the scaffolds which were laden improved abilities compared with the blank scaffolds. In this study, we anchored osteogenic bone morphogenetic protein-2 (BMP-2) derived peptides to α-TCP 3D porous scaffolds by linking the E7 domain to the target peptides, constructed the modified active peptides (E7BMP-2 peptides) delivery system, which finally achieved the modified peptides sustaining release and enhanced rat bone marrow mesenchymal stem cells (BMSCs) osteogenic differentiation in vitro. The α-TCP 3D porous scaffolds had micropores and interconnected micropores which expanded surface area of the scaffolds. The release test testified the constructed the delivery system had realized long-term release in which the peptides dosage could be detected by the BCA protein assay kit after 10 days compared with BMP-2 proteins which absorbed on the same α-TCP 3D porous scaffolds. The constructed E7BMP-2 peptides delivery system supported rat BMSCs osteogenic differentiation in the form of improving the genes expression levels of Runx2, ALP and OCN. Based on electrostatic interactions, E7 domain fastened combination between the active BMP-2 derived peptides and the α-TCP 3D porous scaffolds, the sustaining E7BMP-2 peptides release promoted the BMSCs osteogenesis as BMP-2 proteins did, which endowed α-TCP 3D porous scaffolds enhanced osteoinductive abilities in vitro.
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Affiliation(s)
- Qinggang Cao
- Department of Orthopaedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing 210002, Jiangsu, PR China; School of Medicine, Nanjing University, Nanjing 210002, Jiangsu, PR China
| | - Zhiwei He
- Department of Orthopaedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing 210002, Jiangsu, PR China
| | - Wendell Q Sun
- Institute of Bio-thermal Science and Technology, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Gentao Fan
- Department of Orthopaedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing 210002, Jiangsu, PR China
| | - Jianning Zhao
- Department of Orthopaedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing 210002, Jiangsu, PR China
| | - Nirong Bao
- Department of Orthopaedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing 210002, Jiangsu, PR China.
| | - Tingjun Ye
- Department of Orthopedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, PR China.
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Genchi GG, Sinibaldi E, Ceseracciu L, Labardi M, Marino A, Marras S, De Simoni G, Mattoli V, Ciofani G. Ultrasound-activated piezoelectric P(VDF-TrFE)/boron nitride nanotube composite films promote differentiation of human SaOS-2 osteoblast-like cells. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:2421-2432. [DOI: 10.1016/j.nano.2017.05.006] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/10/2017] [Accepted: 05/10/2017] [Indexed: 01/20/2023]
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Metabolomic response of osteosarcoma cells to nanographene oxide-mediated hyperthermia. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:340-348. [PMID: 30033263 DOI: 10.1016/j.msec.2018.05.057] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 04/11/2018] [Accepted: 05/17/2018] [Indexed: 01/26/2023]
Abstract
Nanographene oxide (nGO)-mediated hyperthermia has been increasingly investigated as a localized, minimally invasive anticancer therapeutic approach. Near InfraRed (NIR) light irradiation for inducing hyperthermia is particularly attractive, because biological systems mostly lack chromophores that absorb in this spectral window, facilitating the selective heating and destruction of cells which have internalized the NIR absorbing-nanomaterials. However, little is known about biological effects accompanying nGO-mediated hyperthermia at cellular and molecular levels. In this work, well-characterized pegylated nGO sheets with a hydrodynamic size of 300 nm were incubated with human Saos-2 osteosarcoma cells for 24 h and their internalization verified by flow cytometry and confocal microscopy. No effect on cell viability was observed after nGO uptake by Saos-2 cells. However, a proliferation delay was observed due to the presence of nGO sheets in the cytoplasm. 1H NMR metabolomics was employed to screen for changes in the metabolic profile of cells, as this could help to improve understanding of cellular responses to nanomaterials and provide new endpoint markers of effect. Cells internalizing nGO sheets showed noticeable changes in several metabolites compared to control cells, including decreased levels of several amino acids, taurine and creatine and increased levels of phosphocholine and uridine/adenosine nucleotides. After NIR irradiation, cells showed decreases in glutamate and uridine nucleotides, together with increases in glycerophosphocholine and adenosine monophosphate. Overall, this study has shown that the cellular metabolome sensitively responded to nGO exposure and nGO-mediated hyperthermia and that NMR metabolomics is a powerful tool to investigate treatment responses.
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Biomimetic fabrication of antibacterial calcium phosphates mediated by polydopamine. J Inorg Biochem 2018; 178:43-53. [DOI: 10.1016/j.jinorgbio.2017.10.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 09/20/2017] [Accepted: 10/08/2017] [Indexed: 12/17/2022]
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Fontes-Pereira AJ, Amorim M, Catelani F, Matusin DP, Rosa P, Guimarães DM, von Krüger MA, Pereira WCDA. The influence of low-intensity physiotherapeutic ultrasound on the initial stage of bone healing in rats: an experimental and simulation study. J Ther Ultrasound 2016; 4:24. [PMID: 27729978 PMCID: PMC5047053 DOI: 10.1186/s40349-016-0068-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 09/10/2016] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Low-intensity physiotherapeutic ultrasound has been used in physical therapy clinics; however, there remain some scientific issues regarding the bone-healing process. The objective of this study was to investigate the influence of low-intensity physiotherapeutic ultrasound on the initial stage of bone healing in rats. METHODS Twenty-two male adult rats were assessed quantitatively and qualitatively using radiographic, biochemical, and histological analyses. Numerical simulations were also performed. Fractures in animals in the ultrasound group (n = 11) were treated with low-intensity ultrasound (pulsed mode, duty cycle 20 %) for 10 min daily at an intensity of 40 mW/cm2 SATA (1.0 MHz) for 10 days. Fractures in animals in the control group (n = 11) were not treated. RESULTS Alkaline phosphatase levels were non-significantly higher in the ultrasound group than in the control group in the time intervals considered (t(13) = 0.440; 95 % confidence interval (CI) -13.79 to 20.82; p = 0.67). Between-group serum calcium levels were also not significantly different (t(13) = -0.842; 95 % CI -0.48 to 0.21; p = 0.42). Finally, there were no significant differences in radiological scores between the two groups (U = 118; 95 % CI -1.99 to 1.99; p = 0.72). However, the diameter of the newly formed bone tissue was greater and more evident in the ultrasound group. CONCLUSIONS Thirteen days after fracture, there was no significant between-group differences in bone-healing processes, although the increased alkaline phosphatase levels and diameter of new bone tissue need to be further investigated.
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Affiliation(s)
- Aldo José Fontes-Pereira
- Ultrasound Laboratory, Biomedical Engineering Program/COPPE/Federal University of Rio de Janeiro - UFRJ, Rio de Janeiro, Rio de Janeiro Brazil
| | - Marcio Amorim
- Laboratory of Morpho-physiopathology, State University of Pará, Belém, Pará Brazil
| | - Fernanda Catelani
- Ultrasound Laboratory, Biomedical Engineering Program/COPPE/Federal University of Rio de Janeiro - UFRJ, Rio de Janeiro, Rio de Janeiro Brazil
| | | | - Paulo Rosa
- Ultrasound Laboratory, Biomedical Engineering Program/COPPE/Federal University of Rio de Janeiro - UFRJ, Rio de Janeiro, Rio de Janeiro Brazil
| | - Douglas Magno Guimarães
- Laboratory of Epithelial Biology, Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI USA
| | - Marco Antônio von Krüger
- Ultrasound Laboratory, Biomedical Engineering Program/COPPE/Federal University of Rio de Janeiro - UFRJ, Rio de Janeiro, Rio de Janeiro Brazil
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Atila D, Keskin D, Tezcaner A. Crosslinked pullulan/cellulose acetate fibrous scaffolds for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:1103-15. [PMID: 27612808 DOI: 10.1016/j.msec.2016.08.015] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 07/23/2016] [Accepted: 08/07/2016] [Indexed: 11/25/2022]
Abstract
Natural polymer based fibrous scaffolds have been explored for bone tissue engineering applications; however, their inadequate 3-dimensionality and poor mechanical properties are among the concerns for their use as bone substitutes. In this study, pullulan (P) and cellulose acetate (CA), two polysaccharides, were electrospun at various P/CA ratios (P80/CA20, P50/CA50, and P20/CA80%) to develop 3D fibrous network. The scaffolds were then crosslinked with trisodium trimetaphosphate (STMP) to improve the mechanical properties and to delay fast weight loss. The lowest weight loss was observed for the groups that were crosslinked with P/STMP 2/1 for 10min. Fiber morphologies of P50/CA50 were more uniform without phase separation and this group was crosslinked most efficiently among groups. It was found that mechanical properties of P20/CA80 and P50/CA50 were higher than that of P80/CA20. After crosslinking strain values of P50/CA50 scaffolds were improved and these scaffolds became more stable. Unlike P80/CA20, uncrosslinked P50/CA50 and P20/CA80 were not lost in PBS. Among all groups, crosslinked P50/CA50 scaffolds had more uniform pores; therefore this group was used for bioactivity and cell culture studies. Apatite-like structures were observed on fibers after SBF incubation. Human Osteogenic Sarcoma Cell Line (Saos-2) seeded onto crosslinked P50/CA50 scaffolds adhered and proliferated. The functionality of cells was tested by measuring ALP activity of the cells and the results indicated their osteoblastic differentiation. In vitro tests showed that scaffolds were cytocompatible. To sum up, crosslinked P50/CA50 scaffolds were proposed as candidate cell carriers for bone tissue engineering applications.
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Affiliation(s)
- Deniz Atila
- Department of Engineering Sciences, Middle East Technical University, Turkey
| | - Dilek Keskin
- Department of Engineering Sciences, Middle East Technical University, Turkey; Biomaterials and Tissue Engineering Center of Excellence, Middle East Technical University, Turkey
| | - Ayşen Tezcaner
- Department of Engineering Sciences, Middle East Technical University, Turkey; Biomaterials and Tissue Engineering Center of Excellence, Middle East Technical University, Turkey.
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18
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Liu G, Pastakia M, Fenn MB, Kishore V. Saos-2 cell-mediated mineralization on collagen gels: Effect of densification and bioglass incorporation. J Biomed Mater Res A 2016; 104:1121-34. [DOI: 10.1002/jbm.a.35651] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 11/21/2015] [Accepted: 01/08/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Gengbo Liu
- Department of Biomedical Engineering; Florida Institute of Technology; Melbourne Florida 32901
| | - Meet Pastakia
- Department of Biomedical Engineering; Florida Institute of Technology; Melbourne Florida 32901
| | - Michael B. Fenn
- Department of Biomedical Engineering; Florida Institute of Technology; Melbourne Florida 32901
| | - Vipuil Kishore
- Department of Biomedical Engineering; Florida Institute of Technology; Melbourne Florida 32901
- Department of Chemical Engineering; Florida Institute of Technology; Melbourne Florida 32901
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Sung NY, Choi JI. Enhanced release of bone morphogenetic proteins from demineralized bone matrix by gamma irradiation. Radiat Phys Chem Oxf Engl 1993 2015. [DOI: 10.1016/j.radphyschem.2015.02.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Hirota M, Hayakawa T, Shima T, Ametani A, Tohnai I. High porous titanium scaffolds showed higher compatibility than lower porous beta-tricalcium phosphate scaffolds for regulating human osteoblast and osteoclast differentiation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 49:623-631. [PMID: 25686991 DOI: 10.1016/j.msec.2015.01.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 11/30/2014] [Accepted: 01/04/2015] [Indexed: 11/17/2022]
Abstract
We compared osteoblast and osteoclast differentiation when using beta-tricalcium phosphate (βTCP) and titanium scaffolds by investigating human mesenchymal stem cells (hMSCs) and osteoclast progenitor cell activities. hMSCs were cultured for 7, 14, and 21days on titanium scaffolds with 60%, 73%, and 87% porosity and on βTCP scaffolds with 60% and 75% porosity. Human osteoclast progenitor cells were cultured with osteoblast for 14 and 21days on 87% titanium and 75% βTCP scaffolds. Viable cell numbers with 60% and 73% titanium were higher than with 87% titanium and βTCP scaffolds (P<0.05). An 87% titanium scaffold resulted in the highest osteocalcin production with calcification on day 14 (P<0.01) in titanium scaffolds. All titanium scaffolds resulted in higher osteocalcin production on days 7 and 14 compared to βTCP scaffolds (P<0.01). Osteoblasts cultured on 87% titanium scaffolds suppressed osteoclast differentiation on day 7 but enhanced osteoclast differentiation on day 14 compared to 75% βTCP scaffolds (P<0.01). These findings concluded that high porosity titanium scaffolds could enhance progression of hMSC/osteoblast differentiation and regulated osteoclast differentiation cooperating with osteoblast differentiation for calcification as compared with lower porous βTCP.
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Affiliation(s)
- Makoto Hirota
- Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, 3-9 Fuku-ura, Kanazawa-ku, Yokohama 236-004, Japan.
| | - Tohru Hayakawa
- Department of Dental Engineering, Tsurumi University School of Dental Medicine, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama, 230-8501, Japan
| | - Takaki Shima
- Medical Device Department, HI-LEX Corporation, Inc., 1-12-28 Sakae-cho, Takaraduka 665-0845, Japan
| | - Akihiro Ametani
- Medical Device Department, HI-LEX Corporation, Inc., 1-12-28 Sakae-cho, Takaraduka 665-0845, Japan
| | - Iwai Tohnai
- Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, 3-9 Fuku-ura, Kanazawa-ku, Yokohama 236-004, Japan
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Lin HH, Hwang SM, Wu SJ, Hsu LF, Liao YH, Sheen YS, Chuang WH, Huang SY. The osteoblastogenesis potential of adipose mesenchymal stem cells in myeloma patients who had received intensive therapy. PLoS One 2014; 9:e94395. [PMID: 24722177 PMCID: PMC3983165 DOI: 10.1371/journal.pone.0094395] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 03/14/2014] [Indexed: 11/19/2022] Open
Abstract
Multiple myeloma (MM) is characterized by advanced osteolytic lesions resulting from the activation of osteoclasts (OCs) and inhibition of osteoblasts (OBs). OBs are derived from mesenchymal stem cells (MSCs) from the bone marrow (BM), however the pool and function of BMMSCs in MM patients (MM-BMMSCs) are reduced by myeloma cells (MCs) and cytokines secreted from MCs and related anti-MM treatment. Such reduction in MM-BMMSCs currently cannot be restored by any means. Recently, genetic aberrations of MM-BMMSCs have been noted, which further impaired their differentiation toward OBs. We hypothesize that the MSCs derived from adipose tissue (ADMSCs) can be used as alternative MSC sources to enhance the pool and function of OBs. Therefore, the purpose of this study was to compare the osteogenesis ability of paired ADMSCs and BMMSCs in MM patients who had completed intensive therapy. Fifteen MM patients who had received bortezomib-based induction and autologous transplantation were enrolled. At the third month after the transplant, the paired ADMSCs and BMMSCs were obtained and cultured. Compared with the BMMSCs, the ADMSCs exhibited a significantly higher expansion capacity (100% vs 13%, respectively; P = .001) and shorter doubling time (28 hours vs 115 hours, respectively; P = .019). After inducing osteogenic differentiation, although the ALP activity did not differ between the ADMSCs and BMMSCs (0.78 U/µg vs 0.74±0.14 U/µg, respectively; P = .834), the ADMSCs still exhibited higher calcium mineralization, which was determined using Alizarin red S (1029 nmole vs 341 nmole, respectively; P = .001) and von Kossa staining (2.6 E+05 µm2 vs 5 E+04 µm2, respectively; P = .042), than the BMMSCs did. Our results suggested that ADMSCs are a feasible MSC source for enhancing the pool and function of OBs in MM patients who have received intensive therapy.
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Affiliation(s)
- Hsiu-Hsia Lin
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Shiaw-Min Hwang
- Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu, Taiwan
| | - Shang-Ju Wu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Lee-Feng Hsu
- Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu, Taiwan
| | - Yi-Hua Liao
- Department of Dermatology, National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Shuan Sheen
- Department of Dermatology, National Taiwan University Hospital, Taipei, Taiwan
| | - Wen-Hui Chuang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Shang-Yi Huang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
- * E-mail:
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Cellular Response of Calcium Phosphate Bone Substitute Containing Hydroxyapatite and Tricalcium Phosphate. IMPLANT DENT 2014; 23:74-8. [DOI: 10.1097/id.0000000000000025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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de Aza PN, Luklinska ZB, Mate-Sanchez de Val JE, Calvo-Guirado JL. Biodegradation process of α-tricalcium phosphate and α-tricalcium phosphate solid solution bioceramics in vivo: a comparative study. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2013; 19:1350-1357. [PMID: 23823628 DOI: 10.1017/s1431927613001864] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This article reports the structure and morphology of the in vivo interface between implants composed of either a tricalcium phosphate (αTCP) or αTCP doped with 3.0 wt% dicalcium silicate (αTCP(ss)) ceramic, and natural bone of rabbit tibias. Both interfaces developed a new bone layer in direct contact with the implants after 4 and 8 weeks of implantation. The specimens were examined using analytical scanning and transmission electron microscopy, up to the lattice plane resolution level. Degradation processes of the implants developed at the interfaces encouraged osseous tissue ingrowth into the periphery of the material, changing the microstructure of the implants. The ionic exchange initiated at the implant interface with the environment was essential in the integration process of the implant, through a dissolution–precipitation–transformation mechanism. The interfaces developed normal biological and chemical activities and remained reactive over the 8-week period. Organized collagen fibrils were found at the αTCP(ss)/bone interface after 4 weeks, whereas a collagen-free layer was present around the Si-free αTCP implants. These findings suggest that the incorporation of silicate ions into αTCP ceramic promotes processes of the bone remodeling at the bone/αTCP(ss) interface, hence the solubility rate of the aTCP(ss) material decreased.
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Affiliation(s)
- Piedad N de Aza
- Instituto de Bioingeniería, Universidad Miguel Hernández, Avda . Universidad s/n, 03202 Elche (Alicante), Spain
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Troiano NW, Kacena MA. Bone Implants: Processing, Embedding, Cutting, and Histopathology. J Histotechnol 2013. [DOI: 10.1179/his.2006.29.4.253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Torres A, Santos S, Oliveira M, Barbosa M. Fibrinogen promotes resorption of chitosan by human osteoclasts. Acta Biomater 2013; 9:6553-62. [PMID: 23376128 DOI: 10.1016/j.actbio.2013.01.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 01/12/2013] [Accepted: 01/18/2013] [Indexed: 02/07/2023]
Abstract
The osteoconductive and osteoinductive properties of materials intended for bone regeneration have been extensively tested, but the resorbability of these materials is often overlooked. Osteoclasts are responsible for bone resorption and play a crucial role in bone remodeling, which is essential for complete regeneration of bone tissue following injury. In this study we compare, for the first time, the ability of unmodified and fibrinogen (Fg)-modified chitosan (Ch) substrates to support the formation of multinucleated osteoclasts, and the potential of these cells to resorb the two substrates in vitro. Osteoclasts were differentiated from primary human peripheral blood monocytes directly on the substrates being investigated. Our results showed similar cell adhesion to unmodified and Fg-modified Ch substrates. Although the number of multinucleated osteoclasts on both Ch substrates increased throughout the culture period, by 21 days of culture significantly more highly multinucleated osteoclasts (>10 nuclei per cell) were observed on Fg-modified Ch, when compared to Ch alone. In addition, cells were tartrate-resistant acid phosphatase positive and secreted significantly more enzyme on Ch-based substrates than in control conditions. Unmodified and Fg-modified Ch resorption was investigated by fluorescence microscopy and confirmed by electron microscopy. Quantification of results obtained by fluorescence microscopy shows that Fg modification led to significantly higher substrate resorption by 17 days of culture. Our results show that osteoclasts, beyond resorbing mineralized substrates, successfully resorb a polymeric substrate (Ch), with Fg accelerating this process. Thus, in bone tissue regeneration strategies employing polymeric biomaterials, resorption may depend not only on macrophages, but also on osteoclasts.
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Ozdemir E, Sendemir-Urkmez A, Yesil-Celiktas O. Supercritical CO2 processing of a chitosan-based scaffold: Can implantation of osteoblastic cells be enhanced? J Supercrit Fluids 2013. [DOI: 10.1016/j.supflu.2012.12.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Matesanz MC, Vila M, Feito MJ, Linares J, Gonçalves G, Vallet-Regi M, Marques PAA, Portolés MT. The effects of graphene oxide nanosheets localized on F-actin filaments on cell-cycle alterations. Biomaterials 2013. [DOI: 10.1016/j.biomaterials.2012.11.001] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Cunha FVM, Moura Filho OFD, Moura FS, Martins MDCDCE. Efeito do exercício físico e da administração de testosterona na consolidação de fraturas de tíbia em ratos. FISIOTERAPIA EM MOVIMENTO 2012. [DOI: 10.1590/s0103-51502012000400010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
INTRODUÇÃO: Vários estudos têm sido realizados visando identificar um medicamento que acelere a consolidação de fraturas. OBJETIVO: Avaliar o efeito do exercício físico e da administração de testosterona no processo de consolidação de fratura de tíbia e fíbula de ratos. MATERIAIS E MÉTODOS: Rattus norvegicus (250 a 300 g) foram distribuídos aleatoriamente em quatro grupos de oito animais: Controle- fratura e imobilização; G1- fratura, imobilização e propionato de testosterona; G2- fratura, imobilização e treinamento físico de natação; G3- fratura, imobilização, treinamento físico de natação e propionato de testosterona. Os tratamentos foram iniciados imediatamente após a realização de fraturas fechadas no terço médio da tíbia direita. O programa de treinamento físico consistiu em 50 minutos de natação durante quatro semanas, cinco vezes por semana. O propionato de testosterona 3 mg/kg foi administrado por via subcutânea cinco vezes na semana durante quatro semanas. As variáveis analisadas incluíram evolução ponderal, tamanho do calo ósseo, níveis séricos de fósforo, cálcio, albumina, proteínas totais e atividade da fosfatase alcalina. RESULTADOS: O tamanho do calo ósseo foi maior no grupo submetido a tratamento combinando imobilização, exercício físico e testosterona. Os grupos tratados com testosterona combinada ou não a programa de natação apresentaram maiores níveis de fósforo e de fosfatase alcalina, além de menores níveis de proteínas totais e albumina. CONCLUSÃO: O grupo submetido ao programa de treinamento físico de natação combinado com a administração de testosterona obteve melhor consolidação óssea evidenciada pelo maior calo ósseo e atividade aumentada da fosfatase alcalina, sugerindo maior rapidez no processo de consolidação óssea.
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Ayobian-Markazi N, Fourootan T, Kharazifar MJ. Comparison of cell viability and morphology of a human osteoblast-like cell line (SaOS-2) seeded on various bone substitute materials: An in vitro study. Dent Res J (Isfahan) 2012; 9:86-92. [PMID: 22363369 PMCID: PMC3283985 DOI: 10.4103/1735-3327.92959] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Many studies have shown favorable results following the use of different bone graft materials. The aim of the present study was to evaluate the biocompatibility of four different bone graft materials regarding cell viability and morphology of Human osteoblast-like cells (SaOS-2) in vitro. MATERIALS AND METHODS The effects of Bio-Oss(®), Tutodent(®), Osteon(®), and Cerasorb(®) were studied on the human osteoblast-like cell line to evaluate various parameters. Human osteoblast-like cells were seeded onto the mentioned bone substitute materials (BSMs). Cell differentiation; cell viability and alkaline phosphatase (ALP) activity of the seeded cells were evaluated by means of scanning electron microscopy, cell viability test and phase contrast microscopy Analysis of variance (ANOVA). Tamhane's post-hoc, Kruskal-Wallis Test, and Dunn's Test were used. The results were considered to be statistically significant at P<0.05. RESULTS The control group (SaOS-2 cells which were incubated in Dulbecco Modified Eagle Medium without any kind of bone graft materials) had the highest level of cell viability (P<0.001), followed by Tutodent(®), Osteon(®), Cerasorb(®), and Bio-Oss(®). There was no significant difference in MTT assay results between Tutodent(®) and the control group (P=0.032). All tested bone graft materials showed significantly higher ALP activity than the control (P<0.001). The Tutodent(®) group showed the best cell growth among all experimental groups, followed by the Osteon(®) group. The former had a higher spindle-like morphology with good attachment to the surface. Cells cultivated on the surfaces of the Cerasorb(®) and Bio-Oss(®) granules had more round morphologies. CONCLUSION This in vitro study demonstrated that all tested BSMs can provide good cell differentiation but a lower rate of proliferation.
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Hirota M, Hayakawa T, Yoshinari M, Ametani A, Shima T, Monden Y, Ozawa T, Sato M, Koyama C, Tamai N, Iwai T, Tohnai I. Hydroxyapatite coating for titanium fibre mesh scaffold enhances osteoblast activity and bone tissue formation. Int J Oral Maxillofac Surg 2012; 41:1304-9. [DOI: 10.1016/j.ijom.2011.12.035] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2011] [Revised: 11/05/2011] [Accepted: 12/22/2011] [Indexed: 11/28/2022]
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Vozzi G, Corallo C, Daraio C. Pressure-activated microsyringe composite scaffold of poly(L-lactic acid) and carbon nanotubes for bone tissue engineering. J Appl Polym Sci 2012. [DOI: 10.1002/app.38235] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Paskalev M, Goranov N, Sotirov L, Krastev S, Roydev R. Effect of therapeutic ultrasound on bone healing and blood bone markers in dogs with experimental tibial osteotomies. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/s00580-011-1333-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Carrodeguas R, De Aza S. α-Tricalcium phosphate: synthesis, properties and biomedical applications. Acta Biomater 2011; 7:3536-46. [PMID: 21712105 DOI: 10.1016/j.actbio.2011.06.019] [Citation(s) in RCA: 209] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 06/10/2011] [Accepted: 06/10/2011] [Indexed: 11/25/2022]
Abstract
Nowadays, α-tricalcium phosphate (α-TCP, α-Ca(3)(PO(4))(2)) is receiving growing attention as a raw material for several injectable hydraulic bone cements, biodegradable bioceramics and composites for bone repair. In the phase equilibrium diagram of the CaO-P(2)O(5) system, three polymorphs corresponding to the composition Ca(3)(PO(4))(2) are recognized: β-TCP, α-TCP and α'-TCP. α-TCP is formed by heating the low-temperature polymorph β-TCP or by thermal crystallization of amorphous precursors with the proper composition above the transformation temperature. The α-TCP phase may be retained at room temperature in a metastable state, and its range of stability is strongly influenced by ionic substitutions. It is as biocompatible as β-TCP, but more soluble, and hydrolyses rapidly to calcium-deficient hydroxyapatite, which makes α-TCP a useful component for preparing self-setting osteotransductive bone cements and biodegradable bioceramics and composites for bone repairing. The literature published on the synthesis and properties of α-TCP is sometimes contradictory, and therefore this article focuses on reviewing and critically discussing the synthetic methods and physicochemical and biological properties of α-TCP-based biomaterials (excluding α-TCP-based bone cements).
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Boanini E, Torricelli P, Fini M, Bigi A. Osteopenic bone cell response to strontium-substituted hydroxyapatite. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:2079-2088. [PMID: 21691830 DOI: 10.1007/s10856-011-4379-3] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Accepted: 06/09/2011] [Indexed: 05/30/2023]
Abstract
Ionic substitution is a powerful tool to improve the biological performance of calcium phosphate based materials. In this work, we investigated the response of primary cultures of rat osteoblasts derived from osteopenic (O-OB) bone to strontium substituted hydroxyapatite (SrHA), and to hydroxyapatite (HA) as reference material, compared to normal (N-OB) bone cells. Strontium (Sr) and calcium (Ca) cumulative releases in physiological solution are in agreement with the greater solubility of SrHA than HA, whereas the differences between the two materials are levelled off in DMEM, which significantly reduced ion release. O-OB cells grown on SrHA exhibited higher proliferation and increased values of the differentiation parameters. In particular, Sr substitution increased the levels of proliferation, alkaline phosphatase, and collagen type I, and down-regulated the production of interleukin-6 of O-OB cells, demonstrating a promising future of SrHA in the treatment of bone lesions and defects in the presence of osteoporotic bone.
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Affiliation(s)
- E Boanini
- Department of Chemistry G. Ciamician, University of Bologna, Bologna, Italy
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Erdoğan M, Öktem B, Kalaycıoğlu H, Yavaş S, Mukhopadhyay PK, Eken K, Ozgören K, Aykaç Y, Tazebay UH, Ilday FÖ. Texturing of titanium (Ti6Al4V) medical implant surfaces with MHz-repetition-rate femtosecond and picosecond Yb-doped fiber lasers. OPTICS EXPRESS 2011; 19:10986-10996. [PMID: 21643360 DOI: 10.1364/oe.19.010986] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We propose and demonstrate the use of short pulsed fiber lasers in surface texturing using MHz-repetition-rate, microjoule- and sub-microjoule-energy pulses. Texturing of titanium-based (Ti6Al4V) dental implant surfaces is achieved using femtosecond, picosecond and (for comparison) nanosecond pulses with the aim of controlling attachment of human cells onto the surface. Femtosecond and picosecond pulses yield similar results in the creation of micron-scale textures with greatly reduced or no thermal heat effects, whereas nanosecond pulses result in strong thermal effects. Various surface textures are created with excellent uniformity and repeatability on a desired portion of the surface. The effects of the surface texturing on the attachment and proliferation of cells are characterized under cell culture conditions. Our data indicate that picosecond-pulsed laser modification can be utilized effectively in low-cost laser surface engineering of medical implants, where different areas on the surface can be made cell-attachment friendly or hostile through the use of different patterns.
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Affiliation(s)
- Mutlu Erdoğan
- Materials Science and Nanotechnology Graduate Program, Bilkent University, Ankara 06800, Turkey.
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Feito MJ, Lozano RM, Alcaide M, Ramírez-Santillán C, Arcos D, Vallet-Regí M, Portolés MT. Immobilization and bioactivity evaluation of FGF-1 and FGF-2 on powdered silicon-doped hydroxyapatite and their scaffolds for bone tissue engineering. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:405-416. [PMID: 21132351 DOI: 10.1007/s10856-010-4193-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Accepted: 11/19/2010] [Indexed: 05/30/2023]
Abstract
Fibroblast growth factors (FGFs) are polypeptides that control the proliferation and differentiation of various cell types including osteoblasts. FGFs are also strong inducers of angiogenesis, necessary to obtain oxygen and nutrients during tissue repair. With the aim to incorporate these desirable FGF biological properties into bioceramics for bone repair, silicon substituted hydroxyapatites (Si-HA) were used as materials to immobilize bioactive FGF-1 and FGF-2. Thus, the binding of these growth factors to powdered Si-HA and Si-HA scaffolds was carried out efficiently in the present study and both FGFs maintained its biological activity on osteoblasts after its immobilization. The improvement of cell adhesion and proliferation onto Si-HA scaffolds suggests the potential utility of these FGF/scaffolds for bone tissue engineering.
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Affiliation(s)
- María José Feito
- Department of Biochemistry and Molecular Biology I, Faculty of Chemistry, Universidad Complutense, 28040, Madrid, Spain.
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Lee JTY, Tsang WH, Chow KL. Simple Modifications to Standard TRIzol® Protocol Allow High-Yield RNA Extraction from Cells on Resorbable Materials. ACTA ACUST UNITED AC 2011. [DOI: 10.4236/jbnb.2011.21006] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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A novel method for assessing adherent single-cell stiffness in tension: design and testing of a substrate-based live cell functional imaging device. Biomed Microdevices 2010; 13:291-301. [DOI: 10.1007/s10544-010-9493-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Prè D, Ceccarelli G, Benedetti L, Magenes G, De Angelis MGC. Effects of low-amplitude, high-frequency vibrations on proliferation and differentiation of SAOS-2 human osteogenic cell line. Tissue Eng Part C Methods 2010; 15:669-79. [PMID: 19257810 DOI: 10.1089/ten.tec.2008.0599] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The aim of the work was to understand the consequences of low-amplitude, high-frequency vibrations on proliferation and differentiation of SAOS-2 cells (sarcoma osteogenetic), an osteoblastic and tumorigenic cell line. We realized a bioreactor composed of an eccentric motor that produces a displacement of 11 mm at frequencies between 1 and 120 Hz on a plate connected to the motor. The cultures of SAOS-2 cells were fixed on the plate, and the linear acceleration provoked by the motor to the cultures was measured. We used 30 Hz as stimulating frequency after a preliminary test on the effect of different frequencies on differentiation of cells. Afterward, SAOS-2 cells were stimulated with 30 Hz for different durations, every day for 4 days. The expression of some genes involved in the differentiation process was analyzed first with a reverse transcriptase-polymerase chain reaction and afterward with a real-time polymerase chain reaction on the most expressed genes. Moreover, the proliferation of cells was evaluated. The results suggest a strong increase in the expression of the genes involved in tissue differentiation in the treated groups with respect to the controls. On the other hand, the proliferation seems to be slowed down, so probably the acceleration perceived by the mechanosensors of the cells changes the cellular cycle by blocking the duplication to early differentiate toward bone tissue.
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Affiliation(s)
- Deborah Prè
- Dipartimento di Informatica e Sistemistica, University of Pavia , Pavia, Italy.
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Micromachined Si channel width and tortuosity on human osteoblast cell attachment and proliferation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2010. [DOI: 10.1016/j.msec.2009.08.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Lu X, Leng Y. Comparison of the osteoblast and myoblast behavior on hydroxyapatite microgrooves. J Biomed Mater Res B Appl Biomater 2009; 90:438-45. [PMID: 19107805 DOI: 10.1002/jbm.b.31304] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Surface topography is one of the most important surface properties of biomaterials and microfabrication techniques provide new routes to produce precisely controlled surface topographies for investigating the topographic effects on cell behavior. In this study, hydroxyapatite (HA) microgrooved surfaces were used to study the osteoblast and myoblast response to the surface micro-features. The microgrooves were first produced on silicon wafers by photolithography, and then coated with HA using sputtering technique. Orientation angle (OA) was used to evaluate the contact guidance introduced by microgrooves and form index (FI) was introduced to describe the cell morphology change. The results show that the microgroove effects on myoblasts are more obvious than those on osteoblasts, and the two types of cells are sensitive to different sizes of microgrooves. The microgrooves with 8 microm width strongly affect both osteoblasts and myoblasts, while the microgrooves with 24 microm width strongly affect myoblasts only. These results confirm that the surface topographic effect is of cell specific, and therefore, design of surface topographic features must be different for myoblasts and osteoblasts.
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Affiliation(s)
- Xiong Lu
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
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Haimi S, Suuriniemi N, Haaparanta AM, Ellä V, Lindroos B, Huhtala H, Räty S, Kuokkanen H, Sándor GK, Kellomäki M, Miettinen S, Suuronen R. Growth and osteogenic differentiation of adipose stem cells on PLA/bioactive glass and PLA/beta-TCP scaffolds. Tissue Eng Part A 2009; 15:1473-80. [PMID: 19072198 DOI: 10.1089/ten.tea.2008.0241] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The aim of this study was to compare the effects of novel three-dimensional composite scaffolds consisting of a bioactive phase (bioactive glass or beta-tricalcium phosphate [beta-TCP] 10 and 20 wt%) incorporated within a polylactic acid (PLA) matrix on viability, distribution, proliferation, and osteogenic differentiation of human adipose stem cells (ASCs). The viability and distribution of ASCs on the bioactive composite scaffolds was evaluated using Live/Dead fluorescence staining, environmental scanning electron microscopy, and scanning electron microscopy. There were no differences between the two concentrations of bioactive glass and beta-TCP in PLA scaffolds on proliferation and osteogenic differentiation of ASCs. After 2 weeks of culture, DNA content and alkaline phosphatase (ALP) activity of ASCs cultured on PLA/beta-TCP composite scaffolds were higher relative to other scaffold types. Interestingly, the cell number was significantly lower, but the relative ALP/DNA ratio of ASCs was significantly higher in PLA/bioactive glass scaffolds than in other three scaffold types. These results indicate that the PLA/beta-TCP composite scaffolds significantly enhance ASC proliferation and total ALP activity compared to other scaffold types. This supports the potential future use of PLA/beta-TCP composites as effective scaffolds for tissue engineering and as bone replacement materials.
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Affiliation(s)
- Suvi Haimi
- Regea Institute for Regenerative Medicine, University of Tampere, Tampere, Finland.
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Nyan M, Sato D, Kihara H, Machida T, Ohya K, Kasugai S. Effects of the combination with alpha-tricalcium phosphate and simvastatin on bone regeneration. Clin Oral Implants Res 2009; 20:280-7. [PMID: 19397639 DOI: 10.1111/j.1600-0501.2008.01639.x] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Although local application of statins stimulates bone formation, high dose of simvastatin induces inflammation. OBJECTIVE A study was conducted to test the hypothesis that maximum bone regeneration with less inflammation would be achieved by combining an optimal dose of simvastatin with alpha-tricalcium phosphate (alpha-TCP), which is an osteoconductive biomaterial capable of releasing the drug gradually. MATERIAL AND METHODS Bilateral 5-mm-diameter calvarial defects were created in adult Wistar rats and filled with preparations of different doses of simvastatin (0, 0.01, 0.1, 0.25 and 0.5 mg) combined with alpha-TCP particles or left empty. The animals were sacrificed at 2, 4 and 8 weeks and analyzed radiologically and histologically. Half of the animals of 4 and 8 weeks were labeled with fluorescence dyes and histomorphometrically analyzed. RESULTS Simvastatin doses of 0.25 and 0.5 mg caused inflammation of the soft tissue at the graft site whereas control and other doses did not. The micro-CT analysis revealed that the alpha-TCP with 0.1 mg simvastatin (TCP-0.1) group yielded significantly higher bone volumes than untreated control group at all three time points (249%, 227% and 266% at 2, 4 and 8 weeks, respectively). The percentage of defect closure, bone mineral content and bone mineral density were also higher in the TCP-0.1 group than in the other groups. CONCLUSION When combined with alpha-TCP particles, 0.1 mg simvastatin is the optimal dose for stimulation of the maximum bone regeneration in rat calvarial defects without inducing inflammation and it could be applied as an effective bone graft material.
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Affiliation(s)
- Myat Nyan
- Oral Implantology and Regenerative Dental Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan.
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Sun B, Tran KK, Shen H. Enabling customization of non-viral gene delivery systems for individual cell types by surface-induced mineralization. Biomaterials 2009; 30:6386-93. [PMID: 19695695 DOI: 10.1016/j.biomaterials.2009.08.006] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2009] [Accepted: 08/01/2009] [Indexed: 11/26/2022]
Abstract
Delivering genes to mediate functions of cells is a crucial technology for both basic science and clinical applications. Though numerous non-viral gene delivery systems have been developed, the diversity of mammalian cells poses a great challenge to the material design. Here, we demonstrate that surface-induced mineralization represents a promising approach to systematically customize DNA delivery with respect to the characteristics of cells. We initially examined gene transfer in nine cell types derived from different tissues and organisms by surface-induced DNA-doped calcium carbonate nanocomposites derived from a library of mineral solutions. Subsequently, we correlated gene transfer efficiency with cellular uptake, pH responsiveness of nanocomposites, and phagosomal pH of individual cell types. Based on the correlation, we were able to optimize the DNA delivery to the cell types of interest. Surface-induced mineralization possesses great potential for customizing gene transfer in realizing gene- and cell-based therapy and probing functions of genes.
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Affiliation(s)
- Bingbing Sun
- Department of Chemical Engineering, University of Washington, 353 Benson Hall, Box 351750, Seattle, WA 98195, USA
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Capuccini C, Torricelli P, Boanini E, Gazzano M, Giardino R, Bigi A. Interaction of Sr-doped hydroxyapatite nanocrystals with osteoclast and osteoblast-like cells. J Biomed Mater Res A 2009; 89:594-600. [DOI: 10.1002/jbm.a.31975] [Citation(s) in RCA: 152] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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López-Alvarez M, Solla EL, González P, Serra J, León B, Marques AP, Reis RL. Silicon-hydroxyapatite bioactive coatings (Si-HA) from diatomaceous earth and silica. Study of adhesion and proliferation of osteoblast-like cells. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2009; 20:1131-1136. [PMID: 19089599 DOI: 10.1007/s10856-008-3658-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2008] [Accepted: 12/01/2008] [Indexed: 05/27/2023]
Abstract
The aim of this study consisted on investigating the influence of silicon substituted hydroxyapatite (Si-HA) coatings over the human osteoblast-like cell line (SaOS-2) behaviour. Diatomaceous earth and silica, together with commercial hydroxyapatite were respectively the silicon and HA sources used to produce the Si-HA coatings. HA coatings with 0 wt% of silicon were used as control of the experiment. Pulsed laser deposition (PLD) was the selected technique to deposit the coatings. The Si-HA thin films were characterized by Fourier Transformed Infrared Spectroscopy (FTIR) demonstrating the efficient transfer of Si to the HA structure. The in vitro cell culture was established to assess the cell attachment, proliferation and osteoblastic activity respectively by, Scanning Electron Microscopy (SEM), DNA and alkaline phosphatase (ALP) quantification. The SEM analysis demonstrated a similar adhesion behaviour of the cells on the tested materials and the maintenance of the typical osteoblastic morphology along the time of culture. The Si-HA coatings did not evidence any type of cytotoxic behaviour when compared with HA coatings. Moreover, both the proliferation rate and osteoblastic activity results showed a slightly better performance on the Si-HA coatings from diatoms than on the Si-HA from silica.
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Affiliation(s)
- M López-Alvarez
- Department of Applied Physics, ETSI Industriales, University of Vigo, Vigo, Spain.
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Li Y, Bäckesjö CM, Haldosén LA, Lindgren U. Resveratrol inhibits proliferation and promotes apoptosis of osteosarcoma cells. Eur J Pharmacol 2009; 609:13-8. [PMID: 19285066 DOI: 10.1016/j.ejphar.2009.03.004] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2008] [Revised: 02/24/2009] [Accepted: 03/03/2009] [Indexed: 11/16/2022]
Abstract
The phytoalexin resveratrol has been described to have chemopreventive and chemotherapeutic effects in several tumor models while its effects on osteosarcoma have not been extensively studied. Additionally, resveratrol is a potent activator of the Sirt1/Sir2 (silent information regulator 2) family of NAD-dependent deacetylases which plays a role in calorie restriction-mediated tumor suppression. In the present study, we evaluated the effect of resveratrol on growth and apoptosis in four osteosarcoma cell lines (HOS, Saos-2, U-2 OS and MG-63) and a normal human osteoblast cell line (NHOst). We found that Sirt1 protein was relatively higher expressed in the tumor cells than normal osteoblasts. Consistently, resveratrol induced apoptosis in a dose-dependent fashion in the osteosarcoma cells but had minor effect on normal osteoblasts. Also, a similar effect could be elicited by another Sirt1 activator, isonicotinamide. In addition, the pro-apoptotic effect of resveratrol could be enhanced by nutrition restriction elicited by l-asparaginase. We postulate that these effects by resveratrol are mediated via Sirt1 but further studies are needed to confirm or refute this theory.
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Affiliation(s)
- Yan Li
- Department for Clinical Science, Intervention and Technology (CLINTEC), Division of Orthopedics, Karolinska Institutet, Huddinge, 14186 Huddinge, Sweden.
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Bombonato-Prado KF, Bellesini LS, Junta CM, Marques MM, Passos GA, Rosa AL. Microarray-based gene expression analysis of human osteoblasts in response to different biomaterials. J Biomed Mater Res A 2009; 88:401-8. [PMID: 18306281 DOI: 10.1002/jbm.a.31701] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Several biomaterials have been widely used in bone regeneration/substitution procedures in orthopedic and oral surgery. However, how these biomaterials alter osteoblast gene expression is poorly understood. We therefore attempted to address this question by using cDNA microarray technique to identify genes that are differentially regulated in osteoblasts exposed to biomaterials comprehending the biocompatibility spectrum of bioactive (bioglass and hydroxyapatite), bioinert (Ti and stainless steel), and biotolerant (polymethylmethacrylate). By using a cDNA microarray containing 687 human IMAGE sequences, we identified in primary cultures of osteoblastic cells differentiated from the human bone marrow and exposed to these biomaterials, genes whose expression was significantly upregulated or downregulated. Among the differentially expressed genes we have found those involved with cell cycle regulation, cell differentiation and proliferation, apoptosis, cell adhesion, bone mineralization and skeletal development. These results can be relevant to a better understanding of the molecular mechanism underlying the behavior of osteoblasts in bone regenerative procedures.
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Affiliation(s)
- Karina F Bombonato-Prado
- Department of Morphology, Stomatology and Physiology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
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Capuccini C, Torricelli P, Sima F, Boanini E, Ristoscu C, Bracci B, Socol G, Fini M, Mihailescu IN, Bigi A. Strontium-substituted hydroxyapatite coatings synthesized by pulsed-laser deposition: in vitro osteoblast and osteoclast response. Acta Biomater 2008; 4:1885-93. [PMID: 18554996 DOI: 10.1016/j.actbio.2008.05.005] [Citation(s) in RCA: 186] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2007] [Revised: 04/30/2008] [Accepted: 05/09/2008] [Indexed: 11/28/2022]
Abstract
The increasing interest in strontium incorporation into biomaterials for hard tissue repair is justified by the growing evidence of its beneficial effect on bone. We successfully synthesized hydroxyapatite (HA) thin films with different extents of strontium substitution for calcium (0, 1, 3 or 7 at.%) by pulsed-laser deposition. The coatings displayed a granular surface and a good degree of crystallinity, which slightly diminished as strontium content increased. Osteoblast-like MG63 cells and human osteoclasts were cultured on the thin films up to 21 days. MG63 cells grown on the strontium-doped HA coatings displayed normal morphology, good proliferation and increased values of the differentiation parameters, whereas the number of osteoclasts was negatively influenced by the presence of strontium. The positive effect of the ion on bone cells was particularly evident in the case of coatings deposited from HA at relatively high strontium contents (3-7%), where significantly increased values of alkaline phosphatase activity, osteocalcin, type I collagen and osteoprotegerin/TNF-related activation-induced cytokine receptor ratio, and considerably reduced values of osteoclast proliferation, were observed.
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Affiliation(s)
- C Capuccini
- Department of Chemistry G. Ciamician, University of Bologna, 40126 Bologna, Italy
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Ziegler J, Anger D, Krummenauer F, Breitig D, Fickert S, Guenther KP. Biological activity of recombinant human growth factors released from biocompatible bone implants. J Biomed Mater Res A 2008; 86:89-97. [PMID: 17941024 DOI: 10.1002/jbm.a.31625] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The present investigation was performed to study the bioactivity of osteoinductive and osteoproliferative growth factors after release from biocompatible bone implants. Three types of porous carriers were used in this study: hydroxyapatite, alpha tricalcium phosphate, and a neutralized glass ceramic. Implants were loaded with recombinant human bone morphogenetic protein 2 (rh-BMP-2) and recombinant human basic fibroblast growth factor (rh-bFGF) in a concentration of 2 microg/150 microL PBS each. The released growth factors were then applicated into SAOS-2-cell cultures. After 3, 5, and 7 days cell differentiation was measured by the activity of alkaline phosphatase (ALP), cell proliferation by using a MTT assay as well as a cell counter. Rh-BMP-2 released during the first hour from the scaffolds led to a significant increase of the activity of ALP in the incubated SAOS-2-cell culture after 3, 5, and 7 days. However, the incubation with rh-BMP-2 released after 24 h was not found to increase the expression of ALP. The incubation of cell cultures with rh-bFGF released during the first hour led to a significant increase of cell number and of extinction in the MTT assay, whereas this increase was not observed after incubation with rh-bFGF released after 24 h. The in vitro measured biological activity of released growth factors from the surface of synthetic implants is time-depending. If prolonged osteoinductive and osteoproliferative potency of growth factors is desired, a modified application technique should be chosen to stabilize those proteins.
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Affiliation(s)
- Joerg Ziegler
- Department of Orthopaedic Surgery, University Hospital Carl Gustav Carus Dresden, Medical Faculty, Technical University of Dresden, Germany.
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