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Abdallah D, Skafi N, Hamade E, Borel M, Reibel S, Vitale N, El Jamal A, Bougault C, Laroche N, Vico L, Badran B, Hussein N, Magne D, Buchet R, Brizuela L, Mebarek S. Effects of phospholipase D during cultured osteoblast mineralization and bone formation. J Cell Biochem 2018; 120:5923-5935. [DOI: 10.1002/jcb.27881] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 09/20/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Dina Abdallah
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
- Lebanese University, Faculty of Sciences, Campus Rafic Hariri‐Hadath‐Beirut‐Liban Genomic and Health Laboratory/PRASE‐EDST Beirut Lebanon
| | - Najwa Skafi
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
- Lebanese University, Faculty of Sciences, Campus Rafic Hariri‐Hadath‐Beirut‐Liban Genomic and Health Laboratory/PRASE‐EDST Beirut Lebanon
| | - Eva Hamade
- Lebanese University, Faculty of Sciences, Campus Rafic Hariri‐Hadath‐Beirut‐Liban Genomic and Health Laboratory/PRASE‐EDST Beirut Lebanon
| | - Mathieu Borel
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
| | | | - Nicolas Vitale
- Centre National de la Recherche Scientifique (CNRS) UPR‐3212 and Université de Strasbourg Strasbourg France
| | - Alaeddine El Jamal
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
| | - Carole Bougault
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
| | - Norbert Laroche
- Univ Lyon, Université Jean Monnet, Faculté de Médecine, Campus Santé Innovation, INSERM UMR 1059, Sainbiose, LBTO Saint‐Etienne France
| | - Laurence Vico
- Univ Lyon, Université Jean Monnet, Faculté de Médecine, Campus Santé Innovation, INSERM UMR 1059, Sainbiose, LBTO Saint‐Etienne France
| | - Bassam Badran
- Lebanese University, Faculty of Sciences, Campus Rafic Hariri‐Hadath‐Beirut‐Liban Genomic and Health Laboratory/PRASE‐EDST Beirut Lebanon
| | - Nader Hussein
- Lebanese University, Faculty of Sciences, Campus Rafic Hariri‐Hadath‐Beirut‐Liban Genomic and Health Laboratory/PRASE‐EDST Beirut Lebanon
| | - David Magne
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
| | - Rene Buchet
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
| | - Leyre Brizuela
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
| | - Saida Mebarek
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5246, ICBMS Lyon France
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Zhang K, Fan Y, Dunne N, Li X. Effect of microporosity on scaffolds for bone tissue engineering. Regen Biomater 2018; 5:115-124. [PMID: 29644093 PMCID: PMC5887944 DOI: 10.1093/rb/rby001] [Citation(s) in RCA: 161] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 01/15/2018] [Indexed: 01/08/2023] Open
Abstract
Microporosity has a critical role in improving the osteogenesis of scaffolds for bone tissue engineering. Although the exact mechanism, by which it promotes new bone formation, is not well recognized yet, the related hypothesis can be found in many previous studies. This review presents those possible mechanisms about how the microporosity enhances the osteogenic-related functions of cells in vitro and the osteogenic activity of scaffolds in vivo. In summary, the increased specific surface areas by microporosity can offer more protein adsorption sites and accelerate the release of degradation products, which facilitate the interactions between scaffolds and cells. Meanwhile, the unique surface properties of microporous scaffolds have a considerable effect on the protein adsorption. Moreover, capillary force generated by the microporosity can improve the attachment of bone-related cells on the scaffolds surface, and even make the cells achieve penetration into the micropores smaller than them. This review also pays attention to the relationship between the biological and mechanical properties of microporous scaffolds. Although lots of achievements have been obtained, there is still a lot of work to do, some of which has been proposed in the conclusions and perspectives part.
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Affiliation(s)
- Ke Zhang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.,Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 102402, China
| | - Nicholas Dunne
- Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Stokes Building, Collins Avenue, Dublin 9, Ireland
| | - Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.,Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 102402, China.,State Key Laboratory of New Ceramic and Fine Processing, Tsinghua University, Beijing 100084, China
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Wennerberg A, Galli S, Albrektsson T. Current knowledge about the hydrophilic and nanostructured SLActive surface. Clin Cosmet Investig Dent 2011; 3:59-67. [PMID: 23674916 PMCID: PMC3652359 DOI: 10.2147/cciden.s15949] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
This review summarizes the present documentation for the SLActive surface, a hydrophilic and nanostructured surface produced by Straumann Company in Switzerland, and covers the results from 15 in vitro, 17 in vivo, and 16 clinical studies. The SLActive surface is a development of the large grit-blasted and acid-etched SLA surface, and is further processed to a high degree of hydrophilicity. In general, the in vitro and in vivo studies of the SLActive surface demonstrate a stronger cell and bone tissue response than for the predecessor, the SLA surface, produced by the same company. However, in most studies, this difference disappears after 6-8 weeks. In the clinical studies, a stronger bone response was reported for the SLActive surface during the early healing phase when compared with the SLA surface. However, the later biological response was quite similar for the two surfaces and both demonstrated very good clinical results.
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Affiliation(s)
- Ann Wennerberg
- Department of Prosthodontics, Malmö University, Malmö, Sweden ; Department of Biomaterials, Gothenburg University, Gothenburg, Sweden
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Olivares-Navarrete R, Hyzy SL, Hutton DL, Dunn GR, Appert C, Boyan BD, Schwartz Z. Role of non-canonical Wnt signaling in osteoblast maturation on microstructured titanium surfaces. Acta Biomater 2011; 7:2740-50. [PMID: 21352958 DOI: 10.1016/j.actbio.2011.02.030] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Revised: 01/18/2011] [Accepted: 02/16/2011] [Indexed: 12/22/2022]
Abstract
The Wnt signaling pathway inhibitor Dickkopf-2 (Dkk2) regulates osteoblast differentiation on microstructured titanium (Ti) surfaces, suggesting involvement of Wnt signaling in this process. To test this, human osteoblast-like MG63 cells were cultured on tissue culture polystyrene or Ti (smooth PT (Ra=0.2 μm), sand-blasted and acid-etched SLA (Ra=3.22 μm), modSLA (hydrophilic SLA)). Expression of Wnt pathway receptors, activators and inhibitors was measured by qPCR. Non-canonical pathway ligands, receptors and intracellular signaling molecules, as well as bone morphogenetic proteins BMP2 and BMP4, were upregulated on SLA and modSLA, whereas canonical pathway members were downregulated. To confirm that non-canonical signaling was involved, cells were cultured daily with exogenous Wnt3a (canonical pathway) or Wnt5a (non-canonical pathway). Alternatively, cells were cultured with antibodies to Wnt3a or Wnt5a to validate that Wnt proteins secreted by the cells were mediating cell responses to the surface. Wnt5a, but not Wnt3a, increased MG63 cell differentiation and BMP2 and BMP4 proteins, suggesting Wnt5a promotes osteogenic differentiation through production of BMPs. Effects of exogenous and endogenous Wnt5a were synergistic with surface microstructure, suggesting the response also depends on cell maturation state. These results indicate a major role for the non-canonical, calcium-dependent Wnt pathway in differentiation of osteoblasts on microstructured titanium surfaces during implant osseointegration.
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Affiliation(s)
- Rene Olivares-Navarrete
- Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech, Georgia Institute of Technology, 315 Ferst Drive NW, Atlanta, GA 30332-0363, USA
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Role of non-canonical Wnt signaling in osteoblast maturation on microstructured titanium surfaces. Acta Biomater 2011. [PMID: 21352958 DOI: 10.1016/j.actbio.2011.02.03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The Wnt signaling pathway inhibitor Dickkopf-2 (Dkk2) regulates osteoblast differentiation on microstructured titanium (Ti) surfaces, suggesting involvement of Wnt signaling in this process. To test this, human osteoblast-like MG63 cells were cultured on tissue culture polystyrene or Ti (smooth PT (Ra=0.2 μm), sand-blasted and acid-etched SLA (Ra=3.22 μm), modSLA (hydrophilic SLA)). Expression of Wnt pathway receptors, activators and inhibitors was measured by qPCR. Non-canonical pathway ligands, receptors and intracellular signaling molecules, as well as bone morphogenetic proteins BMP2 and BMP4, were upregulated on SLA and modSLA, whereas canonical pathway members were downregulated. To confirm that non-canonical signaling was involved, cells were cultured daily with exogenous Wnt3a (canonical pathway) or Wnt5a (non-canonical pathway). Alternatively, cells were cultured with antibodies to Wnt3a or Wnt5a to validate that Wnt proteins secreted by the cells were mediating cell responses to the surface. Wnt5a, but not Wnt3a, increased MG63 cell differentiation and BMP2 and BMP4 proteins, suggesting Wnt5a promotes osteogenic differentiation through production of BMPs. Effects of exogenous and endogenous Wnt5a were synergistic with surface microstructure, suggesting the response also depends on cell maturation state. These results indicate a major role for the non-canonical, calcium-dependent Wnt pathway in differentiation of osteoblasts on microstructured titanium surfaces during implant osseointegration.
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