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Kopf BS, Ruch S, Berner S, Spencer ND, Maniura-Weber K. The role of nanostructures and hydrophilicity in osseointegration:In-vitroprotein-adsorption and blood-interaction studies. J Biomed Mater Res A 2015; 103:2661-72. [DOI: 10.1002/jbm.a.35401] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 12/11/2014] [Accepted: 01/20/2015] [Indexed: 01/15/2023]
Affiliation(s)
- Brigitte S. Kopf
- Department Materials meet Life; Laboratory for Materials Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology; St. Gallen Switzerland
| | - Sylvie Ruch
- Institut Straumann AG; Basel Switzerland
- Department of Materials; Laboratory for Surface Science and Technology; ETH Zurich Switzerland
| | | | - Nicholas D. Spencer
- Department of Materials; Laboratory for Surface Science and Technology; ETH Zurich Switzerland
| | - Katharina Maniura-Weber
- Department Materials meet Life; Laboratory for Materials Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology; St. Gallen Switzerland
- Department Materials meet Life; Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology; St. Gallen Switzerland
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2
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Xing J, Li Y, Lin M, Wang J, Wu J, Ma Y, Wang Y, Yang L, Luo Y. Surface chemistry modulates osteoblasts sensitivity to low fluid shear stress. J Biomed Mater Res A 2014; 102:4151-60. [DOI: 10.1002/jbm.a.35087] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 12/19/2013] [Accepted: 01/17/2014] [Indexed: 12/12/2022]
Affiliation(s)
- Juan Xing
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
| | - Yan Li
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
| | - Manping Lin
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
| | - Jinfeng Wang
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
| | - Jinchuan Wu
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
| | - Yufei Ma
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
| | - Yuanliang Wang
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
| | - Li Yang
- Key Laboratory of Biorheological Science and Technology; Ministry of Education, Chongqing University; Chongqing 400030 China
| | - Yanfeng Luo
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
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Saldaña L, Crespo L, Bensiamar F, Arruebo M, Vilaboa N. Mechanical forces regulate stem cell response to surface topography. J Biomed Mater Res A 2013; 102:128-40. [PMID: 23613185 DOI: 10.1002/jbm.a.34674] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Accepted: 02/21/2013] [Indexed: 12/21/2022]
Abstract
The interactions between bone tissue and orthopedic implants are strongly affected by mechanical forces at the bone-implant interface, but the interplay between surface topographies, mechanical stimuli, and cell behavior is complex and not well understood yet. This study reports on the influence of mechanical stretch on human mesenchymal stem cells (hMSCs) attached to metallic substrates with different roughness. Controlled forces were applied to plasma membrane of hMSCs cultured on smooth and rough stainless steel surfaces using magnetic collagen-coated particles and an electromagnet system. Degree of phosphorylation of focal adhesion kinase (p-FAK) on the active form (Tyr-397), prostaglandin E2 (PGE2) and vascular endothelial growth factor (VEGF) levels increased on rough samples under static conditions. Cell viability and fibronectin production decreased on rough substrates, while hMSCs maturated to the osteoblastic lineage to a similar extent on both surfaces. PGE2 production and osteoprotegerin/receptor activator of nuclear factor kappa-B ligand ratio increased after force application on both surfaces, although to a greater extent on smooth substrates. p-FAK on Tyr-397 was induced fairly rapidly by mechanical stimulation on rough surfaces while cells cultured on smooth samples failed to activate this kinase in response to tensile forces. Mechanical forces enhanced VEGF secretion and reduced cell viability, fibronetin levels and osteoblastic maturation on smooth surfaces but not on rough samples. The magnetite beads model used in this study is well suited to characterize the response of hMSCs cultured on metallic surfaces to tensile forces and collected data suggest a mechanism whereby mechanotransduction driven by FAK is essential for stem cell growth and functioning on metallic substrates.
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Affiliation(s)
- Laura Saldaña
- Unidad de Investigación, Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
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4
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Macro and microfluidic flows for skeletal regenerative medicine. Cells 2012; 1:1225-45. [PMID: 24710552 PMCID: PMC3901127 DOI: 10.3390/cells1041225] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 11/07/2012] [Accepted: 12/04/2012] [Indexed: 11/16/2022] Open
Abstract
Fluid flow has a great potential as a cell stimulatory tool for skeletal regenerative medicine, because fluid flow-induced bone cell mechanotransduction in vivo plays a critical role in maintaining healthy bone homeostasis. Applications of fluid flow for skeletal regenerative medicine are reviewed at macro and microscale. Macroflow in two dimensions (2D), in which flow velocity varies along the normal direction to the flow, has explored molecular mechanisms of bone forming cell mechanotransduction responsible for flow-regulated differentiation, mineralized matrix deposition, and stem cell osteogenesis. Though 2D flow set-ups are useful for mechanistic studies due to easiness in in situ and post-flow assays, engineering skeletal tissue constructs should involve three dimensional (3D) flows, e.g., flow through porous scaffolds. Skeletal tissue engineering using 3D flows has produced promising outcomes, but 3D flow conditions (e.g., shear stress vs. chemotransport) and scaffold characteristics should further be tailored. Ideally, data gained from 2D flows may be utilized to engineer improved 3D bone tissue constructs. Recent microfluidics approaches suggest a strong potential to mimic in vivo microscale interstitial flows in bone. Though there have been few microfluidics studies on bone cells, it was demonstrated that microfluidic platform can be used to conduct high throughput screening of bone cell mechanotransduction behavior under biomimicking flow conditions.
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Lim JY, Loiselle AE, Lee JS, Zhang Y, Salvi JD, Donahue HJ. Optimizing the osteogenic potential of adult stem cells for skeletal regeneration. J Orthop Res 2011; 29:1627-33. [PMID: 21509820 PMCID: PMC3263698 DOI: 10.1002/jor.21441] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Accepted: 03/31/2011] [Indexed: 02/04/2023]
Abstract
Adult stem cells, including mesenchymal stem cells, display plasticity in that they can differentiate toward various lineages including bone cells, cartilage cells, fat cells, and other types of connective tissue cells. However, it is not clear what factors direct adult stem cell lineage commitment and terminal differentiation. Emerging evidence suggests that extracellular physical cues have the potential to control stem cell lineage specification. In this perspective article, we review recent findings on biomaterial surface and mechanical signal regulation of stem cell differentiation. Specifically, we focus on stem cell response to substrate nanoscale topography and fluid flow induced shear stress and how these physical factors may regulate stem cell osteoblastic differentiation in vitro.
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Affiliation(s)
- Jung Yul Lim
- Department of Engineering Mechanics, University of Nebraska, Lincoln, Nebraska 68588
,The Graduate School of Dentistry, Kyung Hee University, Seoul, Korea
| | - Alayna E. Loiselle
- Division of Musculoskeletal Sciences, Department of Orthopaedics and Rehabilitation, Center for Biomedical Devices and Functional Tissue Engineering, College of Medicine, Pennsylvania State University, Hershey, Pennsylvania 17033
| | - Jeong Soon Lee
- Department of Engineering Mechanics, University of Nebraska, Lincoln, Nebraska 68588
| | - Yue Zhang
- Division of Musculoskeletal Sciences, Department of Orthopaedics and Rehabilitation, Center for Biomedical Devices and Functional Tissue Engineering, College of Medicine, Pennsylvania State University, Hershey, Pennsylvania 17033
| | - Joshua D. Salvi
- Weill Cornell Medical College, Cornell University, New York, New York 10021
| | - Henry J. Donahue
- Division of Musculoskeletal Sciences, Department of Orthopaedics and Rehabilitation, Center for Biomedical Devices and Functional Tissue Engineering, College of Medicine, Pennsylvania State University, Hershey, Pennsylvania 17033
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Zhu B, Bailey SR, Agrawal CM. Calcification of primary human osteoblast cultures under flow conditions using polycaprolactone scaffolds for intravascular applications. J Tissue Eng Regen Med 2011; 6:687-95. [PMID: 21932279 DOI: 10.1002/term.472] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2010] [Revised: 05/30/2011] [Accepted: 07/05/2011] [Indexed: 11/10/2022]
Abstract
Total atherosclerotic occlusion is a leading cause of death. Recent animal models of this disease are devoid of cell-mediated calcification and arteries are often not occluded gradually. This study is part of a project with the objective of developing a new model featuring the above two characteristics, using a tissue-engineering scaffold. The amount and distribution of calcium deposits in primary human osteoblast (HOB) cultures on polycaprolactone (PCL) scaffolds under flow conditions were investigated. HOBs were cultured on PCL scaffolds with TGF-β1 loadings of 0 (control), 5 and 50 ng. HOB-PCL constructs were cultured in spinner flasks. Under flow conditions, cell numbers present in HOB cultures on PCL scaffolds increased from day 7 to day 14, and most calcification was induced at day 21. TGF-β1 loadings of 5 and 50 ng did not show a significant difference in ALP activity, cell numbers and amount of calcium deposited in HOB cultures, but calcium staining showed that 50 ng TGF-β1 had higher calcium deposited on both days 21 and 28 under flow conditions compared with 5 ng of loading. Amount of calcium deposited by HOBs on day 28 showed a decrease from their levels on day 21. PCL degradation may be a factor contributing to this loss. The results indicate that cell-induced calcification can be achieved on PCL scaffolds under flow conditions. In conclusion, TGFβ1-HOB loaded PCL can be applied to create a model for total atherosclerotic occlusion with cell-deposited calcium in animal arteries.
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Affiliation(s)
- Beili Zhu
- Department of Biomedical Engineering, College of Engineering, University of Texas at San Antonio, TX, USA
| | - Steven R Bailey
- Department of Biomedical Engineering, College of Engineering, University of Texas at San Antonio, TX, USA.,Janey Briscoe Center for Cardiovascular Research, Janey and Dolph Briscoe Division of Cardiology, Department of Medicine, University of Texas Health Science Center at San Antonio, TX, USA
| | - C Mauli Agrawal
- Department of Biomedical Engineering, College of Engineering, University of Texas at San Antonio, TX, USA
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Jeon OH, Yoo YM, Kim KH, Jacobs CR, Kim CH. Primary Cilia-Mediated Osteogenic Response to Fluid Flow Occurs via Increases in Focal Adhesion and Akt Signaling Pathway in MC3T3-E1 Osteoblastic Cells. Cell Mol Bioeng 2011. [DOI: 10.1007/s12195-011-0191-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Bodle JC, Hanson AD, Loboa EG. Adipose-derived stem cells in functional bone tissue engineering: lessons from bone mechanobiology. TISSUE ENGINEERING PART B-REVIEWS 2011; 17:195-211. [PMID: 21338267 DOI: 10.1089/ten.teb.2010.0738] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
This review aims to highlight the current and significant work in the use of adipose-derived stem cells (ASC) in functional bone tissue engineering framed through the bone mechanobiology perspective. Over a century of work on the principles of bone mechanosensitivity is now being applied to our understanding of bone development. We are just beginning to harness that potential using stem cells in bone tissue engineering. ASC are the primary focus of this review due to their abundance and relative ease of accessibility for autologous procedures. This article outlines the current knowledge base in bone mechanobiology to investigate how the knowledge from this area has been applied to the various stem cell-based approaches to engineering bone tissue constructs. Specific emphasis is placed on the use of human ASC for this application.
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Affiliation(s)
- Josephine C Bodle
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695-7115, USA
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Association of collagen with calcium phosphate promoted osteogenic responses of osteoblast-like MG63 cells. Colloids Surf B Biointerfaces 2010; 83:245-53. [PMID: 21177080 DOI: 10.1016/j.colsurfb.2010.11.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2010] [Revised: 10/12/2010] [Accepted: 11/18/2010] [Indexed: 11/22/2022]
Abstract
In this investigation, the effects of the association of the collagen (COLL) molecules with the calcium phosphate (CaP) film were examined with respect to both the physicochemical properties of the CaP films and the osteoblast responses, such as the adhesion, proliferation, differentiation, and mineralization. The COLL pre-adsorbed CaP film (CaPA) exhibited significant changes in the surface morphology compared to the COLL incorporated CaP film (CaPC). The adhesions of the osteoblast-like MG63 cells were similar on the CaPC or CaPA films. However, the proliferation of the MG63 cells on CaPC was comparable to CaP but considerably different than CaPA. The differentiation of the MG63 cells was greatly improved on CaPC and CaPA compared to CaP and more pronounced on CaPA. The presence of COLL within or on the CaP films significantly modulated the expression of the phenotypic genes, including osteopontin (OPN), alkaline phosphatase (ALP), and the transforming growth factor-β (TGF-β). The expression patterns of these genes elucidated that COLL that was present within or on the CaP film supported the osteoblast proliferation and differentiation. These positive effects were stronger for CaPA than CaPC. The bone-like nodules formed on all of the specimens. However, the mineralization of CaPC and CaPA was significantly higher than CaP, indicating that the association of CaP with COLL promoted the mineral deposition. Therefore, the association of the COLL molecules with the CaP film induced positive effects on the biomineralization. Overall, the incorporation of COLL efficiently enhanced the osteoblast responses of CaP. This system can be utilized in a drug delivery system using calcium phosphate. Although the incorporation effects were slightly higher for the osteoblast responses of CaPA than CaPC, CaPC can be used when the longer drug release times are desirable.
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Thompson MS, Epari DR, Bieler F, Duda GN. In vitro models for bone mechanobiology: Applications in bone regeneration and tissue engineering. Proc Inst Mech Eng H 2010; 224:1533-41. [DOI: 10.1243/09544119jeim807] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Healthy bone healing is a remarkable, mechanically sensitive, scar-free process that leads rapidly to repair tissue of high mechanical quality and functionality, and knowledge of this process is essential for driving advances in bone tissue engineering and regeneration. Gaining this knowledge requires the use of models to probe and understand the detailed mechanisms of healing, and the tight coupling of biology and mechanics make it essential that both of these aspects are controlled and analysed together, using a mechanobiological approach. This article reviews the literature on in vitro models used for this purpose, beginning with two-dimensional (2D) cell culture models used for applying controlled mechanical stimuli to relevant cells, and detailing the analysis techniques required for understanding both substrate strain and fluid flow stimuli in sufficient detail to relate them to biological response. The additional complexity of three-dimensional (3D) models, enabling more faithful representation of the healing situation, can require correspondingly more sophisticated tools for mechanical and biological analysis, but has recently uncovered exciting evidence for the mechanical sensitivity of angiogenesis, essential for successful healing. Studies using explanted tissue continue to be vital in informing these approaches, providing additional evidence for the relevance of effects in biological and mechanical environments close to those in the living organism. Mechanobiology is essential for the proper analysis of models for bone regeneration, and has an exciting integrative role to play not only in advancing knowledge in this area, but also in ensuring successful translation of new tissue engineering and regenerative therapies to the clinic.
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Affiliation(s)
- M S Thompson
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK
- Biomedical Research Unit, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - D R Epari
- Institute for Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - F Bieler
- Julius Wolff Institut and Center for Musculoskeletal Surgery, Berlin/Brandenburg Center for Regenerative Therapies, Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - G N Duda
- Julius Wolff Institut and Center for Musculoskeletal Surgery, Berlin/Brandenburg Center for Regenerative Therapies, Charité – Universitätsmedizin Berlin, Berlin, Germany
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11
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Plunkett NA, Partap S, O'Brien FJ. Osteoblast Response to Rest Periods During Bioreactor Culture of Collagen–Glycosaminoglycan Scaffolds. Tissue Eng Part A 2010; 16:943-51. [DOI: 10.1089/ten.tea.2009.0345] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Niamh A. Plunkett
- Department of Anatomy, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Department of Mechanical Engineering, Centre for Bioengineering, Trinity College, Dublin 2, Ireland
| | - Sonia Partap
- Department of Anatomy, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Department of Mechanical Engineering, Centre for Bioengineering, Trinity College, Dublin 2, Ireland
| | - Fergal J. O'Brien
- Department of Anatomy, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Department of Mechanical Engineering, Centre for Bioengineering, Trinity College, Dublin 2, Ireland
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12
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Brown A, Meenan BJ. Investigating the Effects of Fluid Shear Forces on Cellular Responses to Profiled Surfaces in-Vitro: A Computational and Experimental Investigation. ACTA ACUST UNITED AC 2007; 2007:5387-90. [DOI: 10.1109/iembs.2007.4353560] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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