1
|
Boscaro D, Sikorski P. Spheroids as a 3D in vitro model to study bone and bone mineralization. BIOMATERIALS ADVANCES 2024; 157:213727. [PMID: 38101067 DOI: 10.1016/j.bioadv.2023.213727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/23/2023] [Accepted: 12/06/2023] [Indexed: 12/17/2023]
Abstract
Traumas, fractures, and diseases can severely influence bone tissue. Insight into bone mineralization is essential for the development of therapies and new strategies to enhance bone regeneration. 3D cell culture systems, in particular cellular spheroids, have gained a lot of interest as they can recapitulate crucial aspects of the in vivo tissue microenvironment, such as the extensive cell-cell and cell-extracellular matrix (ECM) interactions found in tissue. The potential of combining spheroids and various classes of biomaterials opens also new opportunities for research within bone tissue engineering. Characterizing cellular organization, ECM structure, and ECM mineralization is a fundamental step for understanding the biological processes involved in bone tissue formation in a spheroid-based model system. Still, many experimental techniques used in this field of research are optimized for use with monolayer cell cultures. There is thus a need to develop new and improving existing experimental techniques, for applications in 3D cell culture systems. In this review, bone composition and spheroids properties are described. This is followed by an insight into the techniques that are currently used in bone spheroids research and how these can be used to study bone mineralization. We discuss the application of staining techniques used with optical and confocal fluorescence microscopy, molecular biology techniques, second harmonic imaging microscopy, Raman spectroscopy and microscopy, as well as electron microscopy-based techniques, to evaluate osteogenic differentiation, collagen production and mineral deposition. Challenges in the applications of these methods in bone regeneration and bone tissue engineering are described. STATEMENT OF SIGNIFICANCE: 3D cell cultures have gained a lot of interest in the last decades as a possible technique that can be used to recreate in vitro in vivo biological process. The importance of 3D environment during bone mineralization led scientists to use this cell culture to study this biological process, to obtain a better understanding of the events involved. New and improved techniques are also required for a proper analysis of this cell model and the process under investigation. This review summarizes the state of the art of the techniques used to study bone mineralization and how 3D cell cultures, in particular spheroids, are tested and analysed to obtain better resolved results related to this complex biological process.
Collapse
Affiliation(s)
- Diamante Boscaro
- Department of Physics, Norwegian University of Science and Technology (NTNU), Høgskoleringen 5, Trondheim 7034, Norway.
| | - Pawel Sikorski
- Department of Physics, Norwegian University of Science and Technology (NTNU), Høgskoleringen 5, Trondheim 7034, Norway.
| |
Collapse
|
2
|
Peng L, Wu F, Cao M, Li M, Cui J, Liu L, Zhao Y, Yang J. Effects of different physical factors on osteogenic differentiation. Biochimie 2023; 207:62-74. [PMID: 36336107 DOI: 10.1016/j.biochi.2022.10.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 10/11/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
Abstract
Osteoblasts are essential for bone formation and can perceive external mechanical stimuli, which are translated into biochemical responses that ultimately alter cell phenotypes and respond to environmental stimuli, described as mechanical transduction. These cells actively participate in osteogenesis and the formation and mineralisation of the extracellular bone matrix. This review summarises the basic physiological and biological mechanisms of five different physical stimuli, i.e. light, electricity, magnetism, force and sound, to induce osteogenesis; further, it summarises the effects of changing culture conditions on the morphology, structure and function of osteoblasts. These findings may provide a theoretical basis for further studies on bone physiology and pathology at the cytological level and will be useful in the clinical application of bone formation and bone regeneration technology.
Collapse
Affiliation(s)
- Li Peng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Cariology and Endodontics West China Hospital of Stomatology, Sichuan University, China; Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Fanzi Wu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Cariology and Endodontics West China Hospital of Stomatology, Sichuan University, China
| | - Mengjiao Cao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Cariology and Endodontics West China Hospital of Stomatology, Sichuan University, China
| | - Mengxin Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Cariology and Endodontics West China Hospital of Stomatology, Sichuan University, China
| | - Jingyao Cui
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Cariology and Endodontics West China Hospital of Stomatology, Sichuan University, China
| | - Lijia Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Cariology and Endodontics West China Hospital of Stomatology, Sichuan University, China
| | - Yun Zhao
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China.
| | - Jing Yang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Cariology and Endodontics West China Hospital of Stomatology, Sichuan University, China.
| |
Collapse
|
3
|
Crous A, Abrahamse H. The Signalling Effects of Photobiomodulation on Osteoblast Proliferation, Maturation and Differentiation: A Review. Stem Cell Rev Rep 2021; 17:1570-1589. [PMID: 33686595 DOI: 10.1007/s12015-021-10142-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2021] [Indexed: 02/06/2023]
Abstract
Proliferation of osteoblasts is essential for maturation and mineralization of bone matrix. Ossification, the natural phase of bone-forming and hardening is a carefully regulated phase where deregulation of this process may result in insufficient or excessive bone mineralization or ectopic calcification. Osteoblasts can also be differentiated into osteocytes, populating short interconnecting passages within the bone matrix. Over the past few decades, we have seen a significant improvement in awareness and techniques using photobiomodulation (PBM) to stimulate cell function. One of the applications of PBM is the promotion of osteoblast proliferation and maturation. PBM research results on osteoblasts showed increased mitochondrial ATP production, increased osteoblast activity and proliferation, increased and pro-osteoblast expression in the presence of red and NIR radiation. Osteocyte differentiation was also accomplished using blue and green light, showing that different light parameters have various signalling effects. The current review addresses osteoblast function and control, a new understanding of PBM on osteoblasts and its therapeutic impact using various parameters to optimize osteoblast function that may be clinically important. Graphical Abstract.
Collapse
Affiliation(s)
- Anine Crous
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, PO Box 17011, Johannesburg, 2028, South Africa.
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, PO Box 17011, Johannesburg, 2028, South Africa
| |
Collapse
|
4
|
Hamie L, Abbas O, Kurban M, Bhawan J. Osteoclast-Like Giant Cells: Focus on Entities Relevant to Dermatopathology and Underlying Pathogenesis. Am J Dermatopathol 2021; 43:163-173. [PMID: 33595228 DOI: 10.1097/dad.0000000000001769] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABSTRACT Osteoclast-like giant cells (OLGCs) resemble osteoclasts with their abundant cytoplasm and well-developed organelles. OLGCs are characteristic features of giant cell tumor of the tendon sheath and giant cell tumor of soft tissue but they have also been described in numerous other cutaneous conditions. The diagnostic and prognostic significance of the presence of OLGCs is unknown. Here, we summarize the clinical entities that can exhibit these cells to avoid a histological overlap, affecting diagnosis and management.
Collapse
Affiliation(s)
- Lamiaa Hamie
- Dermatology Resident, Dermatology Department, American University of Beirut, Beirut, Lebanon
| | - Ossama Abbas
- Professor, Dermatology Department, American University of Beirut, Beirut, Lebanon
| | - Mazen Kurban
- Associate Professor, Dermatology Department, American University of Beirut, Beirut, Lebanon ; and
| | - Jag Bhawan
- Professor, Dermatopathology Section, Department of Dermatology, Boston University School of Medicine, Boston, MA
| |
Collapse
|
5
|
Farzam Rad V, Panahi M, Jamali R, Darudi A, Moradi AR. Non-invasive in situ monitoring of bone scaffold activity by speckle pattern analysis. BIOMEDICAL OPTICS EXPRESS 2020; 11:6324-6336. [PMID: 33282493 PMCID: PMC7687950 DOI: 10.1364/boe.401740] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 06/01/2023]
Abstract
Scaffold-based bone tissue engineering aims to develop 3D scaffolds that mimic the extracellular matrix to regenerate bone defects and damages. In this paper, we provide a laser speckle analysis to characterize the highly porous scaffold. The experimental procedure includes in situ acquisition of speckle patterns of the bone scaffold at different times under preserved environmental conditions, and follow-up statistical post-processing toward examining its internal activity. The activity and overall viscoelastic properties of scaffolds are expressed via several statistical parameters, and the variations in the computed parameters are attributed to time-varying activity of the samples during their internal substructure migration.
Collapse
Affiliation(s)
- Vahideh Farzam Rad
- Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Majid Panahi
- Department of Physics, Faculty of Science, University of Zanjan, Zanjan 45371-38791, Iran
| | - Ramin Jamali
- Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Ahmad Darudi
- Department of Physics, Faculty of Science, University of Zanjan, Zanjan 45371-38791, Iran
| | - Ali-Reza Moradi
- Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
- School of Nano Science, Institute for Research in Fundamental Sciences (IPM), Tehran 19395-5531, Iran
| |
Collapse
|
6
|
Cadena EA. In situ SEM/EDS compositional characterization of osteocytes and blood vessels in fossil and extant turtles on untreated bone surfaces; different preservational pathways microns away. PeerJ 2020; 8:e9833. [PMID: 32913685 PMCID: PMC7456530 DOI: 10.7717/peerj.9833] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 08/07/2020] [Indexed: 11/20/2022] Open
Abstract
Osteocytes and blood vessels are the main cellular and tissue components of the bone tissue of vertebrates. Evidence of these soft-tissue microstructures has been widely documented in the fossil record of Mesozoic and Cenozoic turtles. However, all these studies have characterized morphologically and elementally these microstructures via isolation from the fossilized bone matrix where they were preserved or in ground sections, which could raise skepticism about the results due to potential cross-contamination or reagents effects. Fossil turtle bones from three different localities with distinct preservation environments and geological settings, including Mongolemys elegans from the Late Cretaceous of Mongolia, Allaeochelys crassesculpta from the Eocene of Germany, and a podocnemidid indet. from the Miocene of Colombia are studied here. Bone from two extant turtle species, Lepidochelys olivacea, and Podocnemis lewyana, as well as a commercial chicken Gallus gallus were used for comparisons. Scanning Electron Microscopy-Energy Dispersive Spectroscopy analyses performed directly on untreated fresh surfaces show that osteocytes-like in the fossil turtle bone are mostly composed of iron and manganese. In contrast, the in situ blood vessels-like of the fossil turtles, as well as those from the extant taxa are rich in elements typically organic in origin (carbon and nitrogen), which are absent to minimally present in the surrounding bone or rock matrix; this suggests a possible endogenous composition for these fossil structures. Also, the results presented here show that although originally both (osteocytes and blood vessels) are organic soft components of bone as evidenced in the extant turtles and chicken, they can experience completely different preservational pathways only microns away from each other in the same fossil bone.
Collapse
Affiliation(s)
- Edwin-Alberto Cadena
- Facultad de Ciencias Naturales, Grupo de Investigación Paleontología Neotropical Tradicional y Molecular (PaleoNeo), Universidad del Rosario, Bogotá, Colombia
- Smithsonian Tropical Research Institute, Panama City, Panama
| |
Collapse
|
7
|
Tilkin RG, Régibeau N, Lambert SD, Grandfils C. Correlation between Surface Properties of Polystyrene and Polylactide Materials and Fibroblast and Osteoblast Cell Line Behavior: A Critical Overview of the Literature. Biomacromolecules 2020; 21:1995-2013. [PMID: 32181654 DOI: 10.1021/acs.biomac.0c00214] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Bone reconstruction remains an important challenge today in several clinical situations, notably regarding the control of the competition occurring during proliferation of osteoblasts and fibroblasts. Polystyrene and polylactide are reference materials in the biomedical field. Therefore, it could be expected from the literature that clear correlations have been already established between the behavior of fibroblasts or osteoblasts and the surface characteristics of these materials. After an extensive analysis of the literature, although general trends could be established, our critical review has highlighted the need to develop a more in-depth analysis of the surface properties of these materials. Moreover, the large variation noticed in the experimental conditions used for in vitro animal cell studies impairs comparison between studies. From our comprehensive review on this topic, we have suggested several parameters that would be valuable to standardize to integrate the data from the literature and improve our knowledge on the cell-material interactions.
Collapse
Affiliation(s)
- Rémi G Tilkin
- Department of Chemical Engineering-Nanomaterials, Catalysis, and Electrochemistry (NCE), University of Liège, B-4000 Liège, Belgium.,Interfaculty Research Center of Biomaterials (CEIB), University of Liège, B-4000 Liège, Belgium
| | - Nicolas Régibeau
- Department of Chemical Engineering-Nanomaterials, Catalysis, and Electrochemistry (NCE), University of Liège, B-4000 Liège, Belgium.,Interfaculty Research Center of Biomaterials (CEIB), University of Liège, B-4000 Liège, Belgium
| | - Stéphanie D Lambert
- Department of Chemical Engineering-Nanomaterials, Catalysis, and Electrochemistry (NCE), University of Liège, B-4000 Liège, Belgium
| | - Christian Grandfils
- Interfaculty Research Center of Biomaterials (CEIB), University of Liège, B-4000 Liège, Belgium
| |
Collapse
|
8
|
Zarrer J, Haider MT, Smit DJ, Taipaleenmäki H. Pathological Crosstalk between Metastatic Breast Cancer Cells and the Bone Microenvironment. Biomolecules 2020; 10:biom10020337. [PMID: 32092997 PMCID: PMC7072692 DOI: 10.3390/biom10020337] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 02/15/2020] [Accepted: 02/17/2020] [Indexed: 12/12/2022] Open
Abstract
Bone is the most common metastatic site in breast cancer. Upon arrival to the bone, disseminated tumor cells can undergo a period of dormancy but often eventually grow and hijack the bone microenvironment. The bone marrow microenvironment consists of multiple cell types including the bone cells, adipocytes, endothelial cells, and nerve cells that all have crucial functions in the maintenance of bone homeostasis. Tumor cells severely disturb the tightly controlled cellular and molecular interactions in the bone marrow fueling their own survival and growth. While the role of bone resorbing osteoclasts in breast cancer bone metastases is well established, the function of other bone cells, as well as adipocytes, endothelial cells, and nerve cells is less understood. In this review, we discuss the composition of the physiological bone microenvironment and how the presence of tumor cells influences the microenvironment, creating a pathological crosstalk between the cells. A better understanding of the cellular and molecular events that occur in the metastatic bone microenvironment could facilitate the identification of novel cellular targets to treat this devastating disease.
Collapse
Affiliation(s)
- Jennifer Zarrer
- Molecular Skeletal Biology Laboratory, Department of Trauma, Hand and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Marie-Therese Haider
- Molecular Skeletal Biology Laboratory, Department of Trauma, Hand and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Daniel J. Smit
- Institute of Biochemistry and Signal Transduction, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Hanna Taipaleenmäki
- Molecular Skeletal Biology Laboratory, Department of Trauma, Hand and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
- Correspondence:
| |
Collapse
|
9
|
Strecker SE, Unterman S, Charles LF, Pivovarchick D, Maye PF, Edelman ER, Artzi N. Osterix-mCherry Expression Allows for Early Bone Detection in a Calvarial Defect Model. ADVANCED BIOSYSTEMS 2019; 3:e1900184. [PMID: 32648681 PMCID: PMC7393777 DOI: 10.1002/adbi.201900184] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/11/2019] [Indexed: 11/09/2022]
Abstract
The process of new bone formation following trauma requires the temporal recruitment of cells to the site, including mesenchymal stem cells, preosteoblasts, and osteoblasts, the latter of which deposit minerals. Hence, bone repair, a process that is assessed by the extent of mineralization within the defect, can take months before it is possible to determine if a treatment is successful. Here, a fluorescently tagged Osterix, an early key gene in the bone formation cascade, is used as a predictive measure of bone formation. Using a calvarial defect model in mice, the ability to noninvasively track the Osterix transcription factor in an Osterix-mCherry mouse model is evaluated as a measure for bone formation following treatment with recombinant human Bone-Morphogenetic-Protein 2 (rhBMP-2). Two distinct delivery materials are utilized, an injectable nanocomposite hydrogel and a collagen sponge, that afford distinct release kinetics and it is found that cherry-fluorescent protein can be detected as early as 2 weeks following treatment. Osterix intensity correlates with subsequent bone formation and hence can serve as a rapid screening tool for osteogenic drugs or for the evaluation and optimization of delivery platforms.
Collapse
Affiliation(s)
- Sara E Strecker
- Massachusetts Institute of Technology, Institute for Medical Engineering and Science, 45 Carleton Street, E25-438, Cambridge, MA, 02139, USA
| | - Shimon Unterman
- Massachusetts Institute of Technology, Institute for Medical Engineering and Science, 45 Carleton Street, E25-438, Cambridge, MA, 02139, USA
| | - Lyndon F Charles
- Massachusetts Institute of Technology, Institute for Medical Engineering and Science, 45 Carleton Street, E25-438, Cambridge, MA, 02139, USA
| | - Dmitry Pivovarchick
- Department of Reconstructive Sciences, University of Connecticut, Farmington, CT, 06032, USA
| | - Peter F Maye
- Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Elazer R Edelman
- Massachusetts Institute of Technology, Institute for Medical Engineering and Science, 45 Carleton Street, E25-438, Cambridge, MA, 02139, USA
- Ort Braude College, 51 Swallow Street, Karmiel, 2161002, Haifa, Israel
| | - Natalie Artzi
- Massachusetts Institute of Technology, Institute for Medical Engineering and Science, 45 Carleton Street, E25-438, Cambridge, MA, 02139, USA
- Department of Medicine, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| |
Collapse
|
10
|
Highly porous PHB-based bioactive scaffolds for bone tissue engineering by in situ synthesis of hydroxyapatite. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 100:286-296. [DOI: 10.1016/j.msec.2019.03.014] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 02/15/2019] [Accepted: 03/04/2019] [Indexed: 01/27/2023]
|
11
|
Electrospin-Coating of Paper: A Natural Extracellular Matrix Inspired Design of Scaffold. Polymers (Basel) 2019; 11:polym11040650. [PMID: 30970647 PMCID: PMC6523310 DOI: 10.3390/polym11040650] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 03/29/2019] [Accepted: 04/02/2019] [Indexed: 12/12/2022] Open
Abstract
Paper has recently found widespread applications in biomedical fields, especially as an alternative scaffolding material for cell cultures, owing to properties such as its fibrous nature, porosity and flexibility. However, paper on its own is not an optimal material for cell cultures as it lacks adhesion moieties specific to mammalian cells, and modifications such as hydrogel integration and chemical vapor deposition are necessary to make it a favorable scaffolding material. The present study focuses on modification of filter paper through electrospin-coating and dip-coating with polycaprolactone (PCL), a promising biomaterial in tissue engineering. Morphological analysis, evaluation of cell viability, alkaline phosphatase (ALP) activity and live/dead assays were conducted to study the potential of the modified paper-based scaffold. The results were compared to filter paper (FP) and electrospun PCL (ES-PCL) as reference samples. The results indicate that electrospin-coating paper is a simple and efficient way of modifying FP. It not only improves the morphology of the deposited electrospun layer through reduction of the fiber diameter by nearly 75%, but also greatly reduces the scaffold fabrication time compared to ES-PCL. The biochemical assays (Resazurin and ALP) indicate that electrospin-coated filter paper (ES-PCL/FP) provides significantly higher readings compared to all other groups. The live/dead results also show improved cell-distribution and cell-scaffold attachment all over the ES-PCL/FP.
Collapse
|
12
|
Bhattarai DP, Aguilar LE, Park CH, Kim CS. A Review on Properties of Natural and Synthetic Based Electrospun Fibrous Materials for Bone Tissue Engineering. MEMBRANES 2018; 8:E62. [PMID: 30110968 PMCID: PMC6160934 DOI: 10.3390/membranes8030062] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/27/2018] [Accepted: 08/09/2018] [Indexed: 12/17/2022]
Abstract
Bone tissue engineering is an interdisciplinary field where the principles of engineering are applied on bone-related biochemical reactions. Scaffolds, cells, growth factors, and their interrelation in microenvironment are the major concerns in bone tissue engineering. Among many alternatives, electrospinning is a promising and versatile technique that is used to fabricate polymer fibrous scaffolds for bone tissue engineering applications. Copolymerization and polymer blending is a promising strategic way in purpose of getting synergistic and additive effect achieved from either polymer. In this review, we summarize the basic chemistry of bone, principle of electrospinning, and polymers that are used in bone tissue engineering. Particular attention will be given on biomechanical properties and biological activities of these electrospun fibers. This review will cover the fundamental basis of cell adhesion, differentiation, and proliferation of the electrospun fibers in bone tissue scaffolds. In the last section, we offer the current development and future perspectives on the use of electrospun mats in bone tissue engineering.
Collapse
Affiliation(s)
- Deval Prasad Bhattarai
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University, Jeonju 561-756, Korea.
- Department of Chemistry, Amrit Campus, Tribhuvan University, Kathmandu 44613, Nepal.
| | - Ludwig Erik Aguilar
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University, Jeonju 561-756, Korea.
| | - Chan Hee Park
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University, Jeonju 561-756, Korea.
- Division of Mechanical Design Engineering, Chonbuk National University, Jeonju 561-756, Korea.
| | - Cheol Sang Kim
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University, Jeonju 561-756, Korea.
- Division of Mechanical Design Engineering, Chonbuk National University, Jeonju 561-756, Korea.
| |
Collapse
|
13
|
Tiludronate and clodronate do not affect bone structure or remodeling kinetics over a 60 day randomized trial. BMC Vet Res 2018; 14:105. [PMID: 29554967 PMCID: PMC5859757 DOI: 10.1186/s12917-018-1423-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 03/13/2018] [Indexed: 11/30/2022] Open
Abstract
Background Tiludronate and clodronate are FDA-approved bisphosphonate drug therapies for navicular disease in horses. Although clinical studies have determined their ability to reduce lameness associated with skeletal disorders in horses, data regarding the effect on bone structure and remodeling is lacking. Additionally, due to off-label use of these drugs in young performance horses, effects on bone in young horses need to be investigated. Therefore, the purpose of this randomized, experimental pilot study was to determine the effect of tiludronate and clodronate on normal bone cells, structure and remodeling after 60 days in clinically normal, young horses. Additionally, the effect of clodronate on bone healing 60 days after an induced defect was investigated. Results All horses tolerated surgery well, with no post-surgery lameness and all acquired biopsies being adequate for analyses. Overall, tiludronate and clodronate did not significantly alter any bone structure or remodeling parameters, as evaluated by microCT and dynamic histomorphometry. Tiludronate did not extensively impact bone formation or resorption parameters as evaluated by static histomorphometry. Similarly, clodronate did not affect bone formation or resorption after 60 days. Sixty days post-defect, healing was minimally affected by clodronate. Conclusions Tiludronate and clodronate do not appear to significantly impact bone tissue on a structural or cellular level using standard dose and administration schedules.
Collapse
|
14
|
Staphylococcal Osteomyelitis: Disease Progression, Treatment Challenges, and Future Directions. Clin Microbiol Rev 2018; 31:31/2/e00084-17. [PMID: 29444953 DOI: 10.1128/cmr.00084-17] [Citation(s) in RCA: 211] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Osteomyelitis is an inflammatory bone disease that is caused by an infecting microorganism and leads to progressive bone destruction and loss. The most common causative species are the usually commensal staphylococci, with Staphylococcus aureus and Staphylococcus epidermidis responsible for the majority of cases. Staphylococcal infections are becoming an increasing global concern, partially due to the resistance mechanisms developed by staphylococci to evade the host immune system and antibiotic treatment. In addition to the ability of staphylococci to withstand treatment, surgical intervention in an effort to remove necrotic and infected bone further exacerbates patient impairment. Despite the advances in current health care, osteomyelitis is now a major clinical challenge, with recurrent and persistent infections occurring in approximately 40% of patients. This review aims to provide information about staphylococcus-induced bone infection, covering the clinical presentation and diagnosis of osteomyelitis, pathophysiology and complications of osteomyelitis, and future avenues that are being explored to treat osteomyelitis.
Collapse
|
15
|
Kamadjaja MJK, Salim S, Rantam FA, Sumarta NPM. Osteogenic Differentiation of Human Amniotic Mesenchymal Stem Cells in Chitosan-Carbonate Apatite Scaffold ( In Vivo Study). Contemp Clin Dent 2018; 9:592-596. [PMID: 31772469 PMCID: PMC6868619 DOI: 10.4103/ccd.ccd_627_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background: Studies of bone tissue engineering as a viable alternative to autogenous bone graft show promising results, although its mechanism and effectiveness remain only partially understood. Purpose: To explain the osteogenic differentiation of scaffold chitosan (Ch)–carbonate apatite (CA) in seeding with human amniotic mesenchymal stem cells (hAMSCs) on the regeneration of calvarial bone defects in rats. Materials and Methods: Shitosan-Carbonate Apatite (Ch-CA) scaffold was created by means of a freeze-drying method. Twenty Wistar rats were randomly divided into two groups: control and treatment. Defects were created in the calvarial bone of each treatment group with a scaffold subsequently implanted. After 8 weeks, the rats were terminated for histology and immunohistochemistry examination. Results: Expressions of vascular endothelial growth factor, bone morphogenetic protein2, Runt-related transcription factor 2 (RUNX2), and angiogenesis occurred earlier in the tissue-engineered group than that in the control group. An 8-week analysis also showed that the expression of RUNX2, alkaline phosphatase, osteocalcin, and collagen type 1 was at more elevated levels in the treatment group than that in the control group. Conclusion: These results showed that the combination of hAMSCs and Ch-CA scaffold may become one of the candidates for bone tissue engineering.
Collapse
Affiliation(s)
- Michael Josef Kridanto Kamadjaja
- Department of Prosthodontic, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia.,Stem Cell Research and Development Center, Universitas Airlangga, Surabaya, Indonesia
| | - Sherman Salim
- Department of Prosthodontic, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Fedik Abdul Rantam
- Stem Cell Research and Development Center, Universitas Airlangga, Surabaya, Indonesia.,Regenerative Medicine and Stem Cell Center, Dr. Soetomo National Hospital, Surabaya, Indonesia.,Department of Virology, Immunology and Microbiology, Faculty of Veterinary - Universitas Airlangga, Surabaya, Indonesia
| | - Ni Putu Mira Sumarta
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| |
Collapse
|
16
|
|
17
|
Kaur T, Thirugnanam A, Pramanik K. Tailoring the in vitro characteristics of poly(vinyl alcohol)-nanohydroxyapatite composite scaffolds for bone tissue engineering. JOURNAL OF POLYMER ENGINEERING 2016. [DOI: 10.1515/polyeng-2015-0252] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Poly(vinyl alcohol) reinforced with nanohydroxyapatite (PVA-nHA) composite scaffolds were developed by varying the nHA (1%, 2%, 3%, 4%, and 5%, w/v) composition in the PVA matrix by solvent casting technique. The developed composite scaffolds were characterized using scanning electron microscopy (SEM), X-ray powder diffraction (XRD), attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy, and contact angle measurement. The stability of the composite scaffolds in physiological environment was evaluated by swelling and degradation studies. Further, these composite scaffolds were tested for in vitro bioactivity, hemolysis, biocompatibility, and mechanical strength. SEM micrographs showed a homogenous distribution of nHA (3%, w/v) in the PVA matrix. XRD and ATR-FTIR analysis confirmed no phase contamination and the existence of the chemical bond between PVA-nHA at approximately 2474 cm-1. PVA-nHA composite scaffolds with 3% (w/v) concentration of nHA showed nominal swelling and degradation behavior with good mechanical strength. The mechanical strength and degradation properties of the scaffold above 3% (w/v) of nHA was found to deteriorate, which is due to the agglomeration of nHA. The in vitro bioactivity and hemolysis studies showed improved apatite formation and hemocompatibility of the developed scaffolds. In vitro cell adhesion, proliferation, alkaline phosphatase activity, and Alizarin red S staining confirmed the biocompatibility of the composite scaffolds.
Collapse
|
18
|
Vladescu A, Padmanabhan SC, Ak Azem F, Braic M, Titorencu I, Birlik I, Morris MA, Braic V. Mechanical properties and biocompatibility of the sputtered Ti doped hydroxyapatite. J Mech Behav Biomed Mater 2016; 63:314-325. [PMID: 27450034 DOI: 10.1016/j.jmbbm.2016.06.025] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 06/21/2016] [Accepted: 06/26/2016] [Indexed: 11/27/2022]
Abstract
The hydroxyapatite enriched with Ti were prepared as possible candidates for biomedical applications especially for implantable devices that are in direct contact to the bone. The hydroxyapatites with different Ti content were prepared by RF magnetron sputtering on Ti-6Al-4V alloy using pure hydroxyapatite and TiO2 targets. The content of Ti was modified by changing the RF power fed on TiO2 target. The XPS and FTIR analyses revealed the presence of hydroxyapatite structure. The hardness and elastic modulus of the hydroxyapatite were increased by Ti addition. After 5 days of culture, the cell viability of the Ti-6Al-4V was enhanced by depositing with undoped or doped hydroxyapatite. The Ti additions led to an increase in cell viability of hydroxyapatite, after 5 days of culture. The electron microscopy showed the presence of more cells on the surface of Ti-enriched hydroxyapatite than those observed on the surface of the uncoated alloys or undoped hydroxyapatite.
Collapse
Affiliation(s)
- A Vladescu
- National Institute for Optoelectronics (INOE2000), 409 Atomistilor St., Magurele, Romania.
| | - S C Padmanabhan
- Department of Chemistry, University College Cork, College Road, Cork, Ireland; Advanced Materials and BioEngineering Research (AMBER) and School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland.
| | - F Ak Azem
- Dokuz Eylul University, Engineering Faculty, Metallurgical and Materials Engineering Department, Tinaztepe Campus, Izmir, Turkey
| | - M Braic
- National Institute for Optoelectronics (INOE2000), 409 Atomistilor St., Magurele, Romania
| | - I Titorencu
- Institute of Cellular Biology and Pathology Nicolae Simionescu of the Romanian Academy, 8 B.P. Hasdeu, Bucharest, Romania
| | - I Birlik
- Dokuz Eylul University, Engineering Faculty, Metallurgical and Materials Engineering Department, Tinaztepe Campus, Izmir, Turkey
| | - M A Morris
- Department of Chemistry, University College Cork, College Road, Cork, Ireland; Advanced Materials and BioEngineering Research (AMBER) and School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland
| | - V Braic
- National Institute for Optoelectronics (INOE2000), 409 Atomistilor St., Magurele, Romania
| |
Collapse
|
19
|
In Vitro Evaluation of ProRoot MTA, Biodentine, and MM-MTA on Human Alveolar Bone Marrow Stem Cells in Terms of Biocompatibility and Mineralization. J Endod 2015; 41:1646-52. [DOI: 10.1016/j.joen.2015.05.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 05/05/2015] [Accepted: 05/21/2015] [Indexed: 01/17/2023]
|
20
|
Das B, Chattopadhyay P, Maji S, Upadhyay A, Purkayastha MD, Mohanta CL, Maity TK, Karak N. Bio-functionalized MWCNT/hyperbranched polyurethane bionanocomposite for bone regeneration. Biomed Mater 2015; 10:025011. [DOI: 10.1088/1748-6041/10/2/025011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
21
|
Hu LF, Li JB, Qian AR, Wang F, Shang P. Mineralization initiation of MC3T3-E1 preosteoblast is suppressed under simulated microgravity condition. Cell Biol Int 2014; 39:364-72. [PMID: 25318973 DOI: 10.1002/cbin.10391] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 09/17/2014] [Indexed: 01/29/2023]
Abstract
Microgravity decreases the differentiation of osteoblast. However, as this process is multistage and complex, the mechanism by which microgravity inhibits osteoblast differentiation is still unclear. We have previously found that 24 h acute treatment of simulated microgravity (SM) with a random positioning machine (RPM) significantly inhibited the differentiation of preosteoblasts and have explored whether osteoblasts show different response to microgravity condition at other stages, such as the mineralizing-stage. Murine MC3T3-E1 preosteoblasts induced for osteogenic differentiation for seven days were cultured either under normal gravity or SM conditions for 24 h. SM treatment significantly suppressed mineralized nodule formation. Alkaline phosphatase (ALP) activity was dramatically decreased, and the expression of ALP gene was downregulated. Expression of well-known markers and regulators for osteoblasts differentiation, including osteocalcin (OC), type I collagen α1 (Col Iα1), dentin matrix protein 1 (DMP1) and runt-related transcription factor 2 (Runx2), were downregulated. Western blot analysis showed that the phosphorylated extracellular signal-regulated kinase (p-ERK) level was lower under SM condition. Thus, the initiation of osteoblast mineralization is suppressed by SM condition, and the suppression may be through the regulation of ALP activity and the osteogenic gene expression. ERK signaling might be involved in this process. These results are relevant to the decrease of osteoblast maturation and bone formation under microgravity condition.
Collapse
Affiliation(s)
- Li-fang Hu
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi'an, 710072, China
| | | | | | | | | |
Collapse
|
22
|
Kim HK, Kim MG, Leem KH. Collagen hydrolysates increased osteogenic gene expressions via a MAPK signaling pathway in MG-63 human osteoblasts. Food Funct 2014; 5:573-8. [PMID: 24496382 DOI: 10.1039/c3fo60509d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present study investigated the effects of CHs on osteogenic activities and MAPK-regulation on bone matrix gene expressions. The effects of CHs on cell proliferation, alkaline phosphatase (ALP) activity, collagen synthesis, and mineralization were measured in human osteoblastic MG-63 cells. Activation of MAPKs and downstream transcription factors such as extracellular-signal-regulated kinase 1/2 (ERK1/2), c-Jun N-terminal kinase 1/2 (JNK1/2), p38, ELK1, and cJUN was examined using Western blot analysis. The expressions of osteogenic genes were measured by quantitative real-time PCR. CHs dose-dependently increased MG-63 cell proliferation, ALP activity, collagen synthesis, and calcium deposition. CHs activated ERK1/2, JNK1/2, p38, and ELK1 phosphorylation except cJUN. The COL1A1 (collagen, type I, alpha 1), ALPL (alkaline phosphatase), BGLAP (osteocalcin), and SPP1 (secreted phosphoprotein 1, osteopontin) gene expressions were increased by CH treatment. The ERK1/2 inhibitor (PD98509) blocked the CH-induced COL1A1 and ALPL gene expression, as well as ELK1 phosphorylation. The JNK1/2 inhibitor (SP600125) abolished CH-induced COL1A1 expression. The p38 inhibitor (SB203580) blocked CH-induced COL1A1 and SPP1 gene expression. In conclusion, CH treatment stimulates the osteogenic activities and increases bone matrix gene expressions via the MAPK/ELK1 signaling pathway. These results could provide a mechanistic explanation for the bone-strengthening effects of CHs.
Collapse
Affiliation(s)
- Hye Kyung Kim
- Department of Food & Biotechnology, Hanseo University, Seosan, Chungnam 356-706, South Korea
| | | | | |
Collapse
|
23
|
Sefat F, Denyer MC, Youseffi M. Effects of different transforming growth factor beta (TGF-β) isomers on wound closure of bone cell monolayers. Cytokine 2014; 69:75-86. [DOI: 10.1016/j.cyto.2014.05.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 02/24/2014] [Accepted: 05/12/2014] [Indexed: 12/14/2022]
|
24
|
Effects of egg yolk-derived peptide on osteogenic gene expression and MAPK activation. Molecules 2014; 19:12909-24. [PMID: 25157462 PMCID: PMC6271094 DOI: 10.3390/molecules190912909] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 08/07/2014] [Accepted: 08/12/2014] [Indexed: 01/01/2023] Open
Abstract
The present study investigated the effects of egg yolk-derived peptide (YPEP) on osteogenic activities and MAPK-regulation of osteogenic gene expressions. The effects of YPEP on cell proliferation, alkaline phosphatase activity, collagen synthesis, and mineralization were measured in human osteoblastic MG-63 cells. Activation of MAPKs and downstream transcription factors such as extracellular-signal-regulated kinase 1/2 (ERK1/2), c-Jun N-terminal kinase 1/2 (JNK1/2), p38, ELK1, and cJUN were examined using western blot analysis. YPEP dose-dependently increased MG-63 cell proliferation, ALP activity, collagen synthesis, and calcium deposition. YPEP activated ERK1/2, p38, and ELK1 phosphorylation whereas JNK and cJUN were not affected by YPEP. The COL1A1 (collagen, type I, alpha 1), ALPL (alkaline phosphatase), and SPP1 (secreted phosphoprotein 1, osteopontin) gene expressions were increased while BGLAP (osteocalcin) was not affected by YPEP. The ERK1/2 inhibitor (PD98509) blocked the YPEP-induced COL1A1 and ALPL gene expressions as well as ELK1 phosphorylation. The p38 inhibitor (SB203580) blocked YPEP-induced COL1A1 and ALPL gene expressions. SPP1 gene expression was not affected by these MAPK inhibitors. In conclusion, YPEP treatment stimulates the osteogenic differentiation via the MAPK/ELK1 signaling pathway. These results could provide a mechanistic explanation for the bone-strengthening effects of YPEP.
Collapse
|
25
|
Castillo Diaz LA, Saiani A, Gough JE, Miller AF. Human osteoblasts within soft peptide hydrogels promote mineralisation in vitro. J Tissue Eng 2014; 5:2041731414539344. [PMID: 25383164 PMCID: PMC4221980 DOI: 10.1177/2041731414539344] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Accepted: 05/02/2014] [Indexed: 12/05/2022] Open
Abstract
Biomaterials that provide three-dimensional support networks for the culture of cells are being developed for a wide range of tissue engineering applications including the regeneration of bone. This study explores the potential of the versatile ionic-complementary peptide, FEFEFKFK, for such a purpose as this peptide spontaneously self-assembles into β-sheet-rich fibres that subsequently self-associate to form self-supporting hydrogels. Via simple live/dead cell assays, we demonstrated that 3 wt% hydrogels were optimal for the support of osteoblast cells. We went on to show that these cells are not only viable within the three-dimensional hydrogel but they also proliferate and produce osteogenic key proteins, that is, they behave like in vivo bone cells, over the 14-day period explored here. The gel elasticity increased over time when cells were present – in comparison to a decrease in control samples – indicating the deposition of matrix throughout the peptide scaffold. Moreover, significant quantities of calcium phosphate were deposited. Collectively, these data demonstrate that ionic-complementary octapeptides offer a suitable three-dimensional environment for osteoblastic cell function.
Collapse
Affiliation(s)
- Luis A Castillo Diaz
- School of Chemical Engineering and Analytical Science, The University of Manchester, Manchester, UK ; Manchester Institute of Biotechnology, The University of Manchester, Manchester, UK
| | - Alberto Saiani
- Manchester Institute of Biotechnology, The University of Manchester, Manchester, UK ; School of Materials, The University of Manchester, Manchester, UK
| | - Julie E Gough
- School of Materials, The University of Manchester, Manchester, UK
| | - Aline F Miller
- School of Chemical Engineering and Analytical Science, The University of Manchester, Manchester, UK ; Manchester Institute of Biotechnology, The University of Manchester, Manchester, UK
| |
Collapse
|
26
|
Titorencu I, Pruna V, Jinga VV, Simionescu M. Osteoblast ontogeny and implications for bone pathology: an overview. Cell Tissue Res 2013; 355:23-33. [PMID: 24292720 DOI: 10.1007/s00441-013-1750-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 10/04/2013] [Indexed: 01/06/2023]
Abstract
Osteoblasts are specialized mesenchyme-derived cells accountable for bone synthesis, remodelling and healing. Differentiation of osteoblasts from mesenchymal stem cells (MSC) towards osteocytes is a multi-step process strictly controlled by various genes, transcription factors and signalling proteins. The aim of this review is to provide an update on the nature of bone-forming osteoblastic cells, highlighting recent data on MSC-osteoblast-osteocyte transformation from a molecular perspective and to discuss osteoblast malfunctions in various bone diseases. We present here the consecutive stages occurring in the differentiation of osteoblasts from MSC, the transcription factors involved and the role of miRNAs in the process. Recent data concerning the pathogenic mechanisms underlying the loss of bone mass and architecture caused by malfunctions in the synthetic activity and metabolism of osteoblasts in osteoporosis, osteogenesis imperfecta, osteoarthritis and rheumatoid arthritis are discussed. The newly acquired knowledge of the ontogeny of osteoblasts will assist in unravelling the abnormalities taking place during their differentiation and will facilitate the prevention and/or treatment of bone diseases by therapy directed against altered molecules and mechanisms.
Collapse
Affiliation(s)
- Irina Titorencu
- Regenerative Medicine Department, Institute of Cellular Biology and Pathology "Nicolae Simionescu" of the Romanian Academy, Bucharest, Romania
| | | | | | | |
Collapse
|
27
|
Despang F, Bernhardt A, Lode A, Dittrich R, Hanke T, Shenoy SJ, Mani S, John A, Gelinsky M. Synthesis and physicochemical,in vitroandin vivoevaluation of an anisotropic, nanocrystalline hydroxyapatite bisque scaffold with parallel-aligned pores mimicking the microstructure of cortical bone. J Tissue Eng Regen Med 2013; 9:E152-66. [DOI: 10.1002/term.1729] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 12/12/2012] [Accepted: 01/28/2013] [Indexed: 02/06/2023]
Affiliation(s)
- F. Despang
- Technische Universität Dresden; Medical Faculty and University Hospital, Centre for Translational Bone, Joint and Soft Tissue Research; Dresden Germany
- Technische Universität Dresden; Institute for Materials Science, Max Bergmann Centre of Biomaterials; Dresden Germany
| | - A. Bernhardt
- Technische Universität Dresden; Medical Faculty and University Hospital, Centre for Translational Bone, Joint and Soft Tissue Research; Dresden Germany
- Technische Universität Dresden; Institute for Materials Science, Max Bergmann Centre of Biomaterials; Dresden Germany
| | - A. Lode
- Technische Universität Dresden; Medical Faculty and University Hospital, Centre for Translational Bone, Joint and Soft Tissue Research; Dresden Germany
- Technische Universität Dresden; Institute for Materials Science, Max Bergmann Centre of Biomaterials; Dresden Germany
| | - R. Dittrich
- TU Bergakademie Freiberg; Institute of Electronic und Sensor Materials; Freiberg Germany
| | - T. Hanke
- Technische Universität Dresden; Institute for Materials Science, Max Bergmann Centre of Biomaterials; Dresden Germany
| | - S. J. Shenoy
- Sree Chitra Tirunal Institute for Medical Sciences and Technology; Thiruvananthapuram Kerala India
| | - S. Mani
- Sree Chitra Tirunal Institute for Medical Sciences and Technology; Thiruvananthapuram Kerala India
| | - A. John
- Sree Chitra Tirunal Institute for Medical Sciences and Technology; Thiruvananthapuram Kerala India
| | - M. Gelinsky
- Technische Universität Dresden; Medical Faculty and University Hospital, Centre for Translational Bone, Joint and Soft Tissue Research; Dresden Germany
- Technische Universität Dresden; Institute for Materials Science, Max Bergmann Centre of Biomaterials; Dresden Germany
| |
Collapse
|
28
|
Solid-supported lipid bilayers to drive stem cell fate and tissue architecture using periosteum derived progenitor cells. Biomaterials 2013; 34:1878-87. [DOI: 10.1016/j.biomaterials.2012.09.024] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Accepted: 09/13/2012] [Indexed: 12/25/2022]
|
29
|
McManus LL, Bonnier F, Burke GA, Meenan BJ, Boyd AR, Byrne HJ. Assessment of an osteoblast-like cell line as a model for human primary osteoblasts using Raman spectroscopy. Analyst 2012; 137:1559-69. [DOI: 10.1039/c2an16209a] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
30
|
Yao F, LeGeros JP, LeGeros RZ. Simultaneous incorporation of carbonate and fluoride in synthetic apatites: Effect on crystallographic and physico-chemical properties. Acta Biomater 2009; 5:2169-77. [PMID: 19269268 DOI: 10.1016/j.actbio.2009.02.007] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2008] [Revised: 01/31/2009] [Accepted: 02/03/2009] [Indexed: 10/21/2022]
Abstract
The mineral in bone is an impure hydroxyapatite, with carbonate as the chief minor substituent. Fluoride has been shown to stimulate osteoblastic activity and inhibit osteoclastic resorption in vitro. CO(3)- and F-substituted apatite (CFA) has been considered as potential bone graft material for orthopedic and dental applications. The objective of this study was to determine the effects of simultaneously incorporated CO(3) and F on the crystallographic physico-chemical properties of apatite. The results showed that increasing CO(3) and Na content in apatites with relatively constant F concentration caused a decrease in crystallite size and an increase in the extent of calcium release; increasing F content in apatites with relatively constant CO(3) concentration caused an increase in crystallite size and a decrease in the extent of Ca release. These findings suggest that CFAs as bone graft materials of desired solubility can be prepared by manipulating the relative concentrations of CO(3) and F incorporated in the apatite.
Collapse
|