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Ribeiro S, Pugliese E, Korntner SH, Fernandes EM, Gomes ME, Reis RL, O'Riordan A, Bayon Y, Zeugolis DI. Assessing the combined effect of surface topography and substrate rigidity in human bone marrow stem cell cultures. Eng Life Sci 2022; 22:619-633. [PMID: 36247829 PMCID: PMC9550738 DOI: 10.1002/elsc.202200029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/08/2022] [Accepted: 08/10/2022] [Indexed: 11/11/2022] Open
Affiliation(s)
- Sofia Ribeiro
- Medtronic Sofradim Production Trevoux France
- Regenerative Modular & Developmental Engineering Laboratory (REMODEL) and Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM) National University of Ireland Galway (NUI Galway) Galway Ireland
| | - Eugenia Pugliese
- Regenerative Modular & Developmental Engineering Laboratory (REMODEL) and Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM) National University of Ireland Galway (NUI Galway) Galway Ireland
| | - Stefanie H. Korntner
- Regenerative Modular & Developmental Engineering Laboratory (REMODEL) and Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM) National University of Ireland Galway (NUI Galway) Galway Ireland
| | - Emanuel M. Fernandes
- 3B's Research Group I3Bs – Research Institute on Biomaterials Biodegradables and Biomimetics University of Minho Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine AvePark Parque de Ciência e Tecnologia Zona Industrial da Gandra Barco Guimarães Portugal
- ICVS/3B's – PT Government Associate Laboratory Braga/Guimarães Portugal
| | - Manuela E. Gomes
- 3B's Research Group I3Bs – Research Institute on Biomaterials Biodegradables and Biomimetics University of Minho Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine AvePark Parque de Ciência e Tecnologia Zona Industrial da Gandra Barco Guimarães Portugal
- ICVS/3B's – PT Government Associate Laboratory Braga/Guimarães Portugal
| | - Rui L. Reis
- 3B's Research Group I3Bs – Research Institute on Biomaterials Biodegradables and Biomimetics University of Minho Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine AvePark Parque de Ciência e Tecnologia Zona Industrial da Gandra Barco Guimarães Portugal
- ICVS/3B's – PT Government Associate Laboratory Braga/Guimarães Portugal
| | | | - Yves Bayon
- Medtronic Sofradim Production Trevoux France
| | - Dimitrios I. Zeugolis
- Regenerative Modular & Developmental Engineering Laboratory (REMODEL) and Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM) National University of Ireland Galway (NUI Galway) Galway Ireland
- Regenerative Modular & Developmental Engineering Laboratory (REMODEL) Charles Institute of Dermatology Conway Institute of Biomolecular & Biomedical Research and School of Mechanical & Materials Engineering University College Dublin (UCD) Dublin Ireland
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Casanellas I, Samitier J, Lagunas A. Recent advances in engineering nanotopographic substrates for cell studies. Front Bioeng Biotechnol 2022; 10:1002967. [PMID: 36147534 PMCID: PMC9486185 DOI: 10.3389/fbioe.2022.1002967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 08/16/2022] [Indexed: 11/13/2022] Open
Abstract
Cells sense their environment through the cell membrane receptors. Interaction with extracellular ligands induces receptor clustering at the nanoscale, assembly of the signaling complexes in the cytosol and activation of downstream signaling pathways, regulating cell response. Nanoclusters of receptors can be further organized hierarchically in the cell membrane at the meso- and micro-levels to exert different biological functions. To study and guide cell response, cell culture substrates have been engineered with features that can interact with the cells at different scales, eliciting controlled cell responses. In particular, nanoscale features of 1–100 nm in size allow direct interaction between the material and single cell receptors and their nanoclusters. Since the first “contact guidance” experiments on parallel microstructures, many other studies followed with increasing feature resolution and biological complexity. Here we present an overview of the advances in the field summarizing the biological scenario, substrate fabrication techniques and applications, highlighting the most recent developments.
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Affiliation(s)
- Ignasi Casanellas
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Department of Electronics and Biomedical Engineering, Faculty of Physics, University of Barcelona (UB), Barcelona, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Josep Samitier
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Department of Electronics and Biomedical Engineering, Faculty of Physics, University of Barcelona (UB), Barcelona, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Anna Lagunas
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid, Spain
- *Correspondence: Anna Lagunas,
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3
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Luo J, Walker M, Xiao Y, Donnelly H, Dalby MJ, Salmeron-Sanchez M. The influence of nanotopography on cell behaviour through interactions with the extracellular matrix – A review. Bioact Mater 2022; 15:145-159. [PMID: 35386337 PMCID: PMC8940943 DOI: 10.1016/j.bioactmat.2021.11.024] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/25/2021] [Accepted: 11/25/2021] [Indexed: 12/19/2022] Open
Abstract
Nanotopography presents an effective physical approach for biomaterial cell manipulation mediated through material-extracellular matrix interactions. The extracellular matrix that exists in the cellular microenvironment is crucial for guiding cell behaviours, such as determination of integrin ligation and interaction with growth factors. These interactions with the extracellular matrix regulate downstream mechanotransductive pathways, such as rearrangements in the cytoskeleton and activation of signal cascades. Protein adsorption onto nanotopography strongly influences the conformation and distribution density of extracellular matrix and, therefore, subsequent cell responses. In this review, we first discuss the interactive mechanisms of protein physical adsorption on nanotopography. Secondly, we summarise advances in creating nanotopographical features to instruct desired cell behaviours. Lastly, we focus on the cellular mechanotransductive pathways initiated by nanotopography. This review provides an overview of the current state-of-the-art designs of nanotopography aiming to provide better biomedical materials for the future. A comprehensive overview of nanotopography fabrication, and nanotopography regulates various cell behaviours. The interactive physical adsorption between nanotopography and extracellular matrix. Nanotopography initiates the cellular mechanotransductive pathways and downstream signalling cascades.
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4
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Brennan MÁ, Monahan DS, Brulin B, Gallinetti S, Humbert P, Tringides C, Canal C, Ginebra MP, Layrolle P. Biomimetic versus sintered macroporous calcium phosphate scaffolds enhanced bone regeneration and human mesenchymal stromal cell engraftment in calvarial defects. Acta Biomater 2021; 135:689-704. [PMID: 34520883 DOI: 10.1016/j.actbio.2021.09.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 09/01/2021] [Accepted: 09/06/2021] [Indexed: 01/08/2023]
Abstract
In contrast to sintered calcium phosphates (CaPs) commonly employed as scaffolds to deliver mesenchymal stromal cells (MSCs) targeting bone repair, low temperature setting conditions of calcium deficient hydroxyapatite (CDHA) yield biomimetic topology with high specific surface area. In this study, the healing capacity of CDHA administering MSCs to bone defects is evaluated for the first time and compared with sintered beta-tricalcium phosphate (β-TCP) constructs sharing the same interconnected macroporosity. Xeno-free expanded human bone marrow MSCs attached to the surface of the hydrophobic β-TCP constructs, while infiltrating the pores of the hydrophilic CDHA. Implantation of MSCs on CaPs for 8 weeks in calvaria defects of nude mice exhibited complete healing, with bone formation aligned along the periphery of β-TCP, and conversely distributed within the pores of CDHA. Human monocyte-osteoclast differentiation was inhibited in vitro by direct culture on CDHA compared to β-TCP biomaterials and indirectly by administration of MSC-conditioned media generated on CDHA, while MSCs increased osteoclastogenesis in both CaPs in vivo. MSC engraftment was significantly higher in CDHA constructs, and also correlated positively with bone in-growth in scaffolds. These findings demonstrate that biomimetic CDHA are favorable carriers for MSC therapies and should be explored further towards clinical bone regeneration strategies. STATEMENT OF SIGNIFICANCE: Delivery of mesenchymal stromal cells (MSCs) on calcium phosphate (CaP) biomaterials enhances reconstruction of bone defects. Traditional CaPs are produced at high temperature, but calcium deficient hydroxyapatite (CDHA) prepared at room temperature yields a surface structure more similar to native bone mineral. The objective of this study was to compare the capacity of biomimetic CDHA scaffolds with sintered β-TCP scaffolds for bone repair mediated by MSCs for the first time. In vitro, greater cell infiltration occurred in CDHA scaffolds and following 8 weeks in vivo, MSC engraftment was higher in CDHA compared to β-TCP, as was bone in-growth. These findings demonstrate the impact of material features such as surface structure, and highlight that CDHA should be explored towards clinical bone regeneration strategies.
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Affiliation(s)
- Meadhbh Á Brennan
- INSERM, UMR 1238, PHY-OS, Faculty of Medicine, University of Nantes, 1 Rue Gaston Veil, Nantes 44035, France; Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA; Biomedical Engineering, School of Engineering; and Regenerative Medicine Institute (REMEDI), School of Medicine, National University of Ireland (NUIG), Galway, Ireland
| | - David S Monahan
- Biomedical Engineering, School of Engineering; and Regenerative Medicine Institute (REMEDI), School of Medicine, National University of Ireland (NUIG), Galway, Ireland
| | - Bénédicte Brulin
- INSERM, UMR 1238, PHY-OS, Faculty of Medicine, University of Nantes, 1 Rue Gaston Veil, Nantes 44035, France; INSERM, UMR 1214, ToNIC, CHU Purpan, Université Paul Sabatier, Toulouse 31024, France
| | - Sara Gallinetti
- Biomaterials, Biomechanics and Tissue Engineering Group, Dpt. Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 10-14, Barcelona 08019, Spain; Research Centre in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Barcelona, Spain
| | - Paul Humbert
- INSERM, UMR 1238, PHY-OS, Faculty of Medicine, University of Nantes, 1 Rue Gaston Veil, Nantes 44035, France
| | - Christina Tringides
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA; Harvard Program in Biophysics, Harvard University, Cambridge, MA 02138, USA
| | - Cristina Canal
- Biomaterials, Biomechanics and Tissue Engineering Group, Dpt. Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 10-14, Barcelona 08019, Spain; Research Centre in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Barcelona, Spain
| | - Maria Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Dpt. Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 10-14, Barcelona 08019, Spain; Research Centre in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Barcelona, Spain; Institute of Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology, Baldiri i Reixach 10-12, Barcelona 08028, Spain
| | - Pierre Layrolle
- INSERM, UMR 1238, PHY-OS, Faculty of Medicine, University of Nantes, 1 Rue Gaston Veil, Nantes 44035, France; INSERM, UMR 1214, ToNIC, CHU Purpan, Université Paul Sabatier, Toulouse 31024, France.
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5
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Abdul-Al M, Kyeremeh GK, Saeinasab M, Heidari Keshel S, Sefat F. Stem Cell Niche Microenvironment: Review. Bioengineering (Basel) 2021; 8:bioengineering8080108. [PMID: 34436111 PMCID: PMC8389324 DOI: 10.3390/bioengineering8080108] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/14/2021] [Accepted: 07/16/2021] [Indexed: 12/13/2022] Open
Abstract
The cornea comprises a pool of self-regenerating epithelial cells that are crucial to preserving clarity and visibility. Limbal epithelial stem cells (LESCs), which live in a specialized stem cell niche (SCN), are crucial for the survival of the human corneal epithelium. They live at the bottom of the limbal crypts, in a physically enclosed microenvironment with a number of neighboring niche cells. Scientists also simplified features of these diverse microenvironments for more analysis in situ by designing and recreating features of different SCNs. Recent methods for regenerating the corneal epithelium after serious trauma, including burns and allergic assaults, focus mainly on regenerating the LESCs. Mesenchymal stem cells, which can transform into self-renewing and skeletal tissues, hold immense interest for tissue engineering and innovative medicinal exploration. This review summarizes all types of LESCs, identity and location of the human epithelial stem cells (HESCs), reconstruction of LSCN and artificial stem cells for self-renewal.
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Affiliation(s)
- Mohamed Abdul-Al
- Department of Biomedical and Electronics Engineering, School of Engineering, University of Bradford, Bradford BD71DP, UK; (M.A.-A.); (G.K.K.)
| | - George Kumi Kyeremeh
- Department of Biomedical and Electronics Engineering, School of Engineering, University of Bradford, Bradford BD71DP, UK; (M.A.-A.); (G.K.K.)
| | - Morvarid Saeinasab
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 91779 48974, Iran;
| | - Saeed Heidari Keshel
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran 19839 69411, Iran;
| | - Farshid Sefat
- Department of Biomedical and Electronics Engineering, School of Engineering, University of Bradford, Bradford BD71DP, UK; (M.A.-A.); (G.K.K.)
- Interdisciplinary Research Centre in Polymer Science & Technology (Polymer IRC), University of Bradford, Bradford BD71DP, UK
- Correspondence:
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6
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The Potential of Fibroblast Transdifferentiation to Neuron Using Hydrogels. Processes (Basel) 2021. [DOI: 10.3390/pr9040632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Currently there is a big drive to generate neurons from differentiated cells which would be of great benefit for regenerative medicine, tissue engineering and drug screening. Most studies used transcription factors, epigenetic reprogramming and/or chromatin remodeling drugs which might reflect incomplete reprogramming or progressive deregulation of the new program. In this review, we present a potential different method for cellular reprogramming/transdifferentiation to potentially enhance regeneration of neurons. We focus on the use of biomaterials, specifically hydrogels, to act as non-invasive tools to direct transdifferentiation, and we draw parallel with existing transcriptional and epigenetic methods. Hydrogels are attractive materials because the properties of hydrogels can be modified, and various natural and synthetic substances can be employed. Incorporation of extracellular matrix (ECM) substances and composite materials allows mechanical properties and degradation rate to be controlled. Moreover, hydrogels in combinations with other physical and mechanical stimuli such as electric current, shear stress and tensile force will be mentioned in this review.
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7
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Gavazzo P, Viti F, Donnelly H, Oliva MAG, Salmeron-Sanchez M, Dalby MJ, Vassalli M. Biophysical phenotyping of mesenchymal stem cells along the osteogenic differentiation pathway. Cell Biol Toxicol 2021; 37:915-933. [PMID: 33420657 DOI: 10.1007/s10565-020-09569-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 10/30/2020] [Indexed: 12/22/2022]
Abstract
Mesenchymal stem cells represent an important resource, for bone regenerative medicine and therapeutic applications. This review focuses on new advancements and biophysical tools which exploit different physical and chemical markers of mesenchymal stem cell populations, to finely characterize phenotype changes along their osteogenic differentiation process. Special attention is paid to recently developed label-free methods, which allow monitoring cell populations with minimal invasiveness. Among them, quantitative phase imaging, suitable for single-cell morphometric analysis, and nanoindentation, functional to cellular biomechanics investigation. Moreover, the pool of ion channels expressed in cells during differentiation is discussed, with particular interest for calcium homoeostasis.Altogether, a biophysical perspective of osteogenesis is proposed, offering a valuable tool for the assessment of the cell stage, but also suggesting potential physiological links between apparently independent phenomena.
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Affiliation(s)
- Paola Gavazzo
- Institute of Biophysics, National Research Council, Genoa, Italy
| | - Federica Viti
- Institute of Biophysics, National Research Council, Genoa, Italy.
| | - Hannah Donnelly
- Centre for the Cellular Microenvironment, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Mariana Azevedo Gonzalez Oliva
- Centre for the Cellular Microenvironment, Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow, UK
| | - Manuel Salmeron-Sanchez
- Centre for the Cellular Microenvironment, Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow, UK
| | - Matthew J Dalby
- Centre for the Cellular Microenvironment, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Massimo Vassalli
- Centre for the Cellular Microenvironment, Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow, UK
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8
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Xia Y, Fan X, Yang H, Li L, He C, Cheng C, Haag R. ZnO/Nanocarbons-Modified Fibrous Scaffolds for Stem Cell-Based Osteogenic Differentiation. SMALL 2020; 16:e2003010. [PMID: 32815251 DOI: 10.1002/smll.202003010] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/04/2020] [Indexed: 02/05/2023]
Abstract
Currently, mesenchymal stem cells (MSCs)-based therapies for bone regeneration and treatments have gained significant attention in clinical research. Though many chemical and physical cues which influence the osteogenic differentiation of MSCs have been explored, scaffolds combining the benefits of Zn2+ ions and unique nanostructures may become an ideal interface to enhance osteogenic and anti-infective capabilities simultaneously. In this work, motivated by the enormous advantages of Zn-based metal-organic framework-derived nanocarbons, C-ZnO nanocarbons-modified fibrous scaffolds for stem cell-based osteogenic differentiation are constructed. The modified scaffolds show enhanced expression of alkaline phosphatase, bone sialoprotein, vinculin, and a larger cell spreading area. Meanwhile, the caging of ZnO nanoparticles can allow the slow release of Zn2+ ions, which not only activate various signaling pathways to guide osteogenic differentiation but also prevent the potential bacterial infection of implantable scaffolds. Overall, this study may provide new insight for designing stem cell-based nanostructured fibrous scaffolds with simultaneously enhanced osteogenic and anti-infective capabilities.
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Affiliation(s)
- Yi Xia
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China.,Department of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, Berlin, 14195, Germany
| | - Xin Fan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China.,Department of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, Berlin, 14195, Germany
| | - Hua Yang
- Institute of Mechanics, Chair of Continuum Mechanics and Constitutive Theory, Technische Universität Berlin, Einsteinufer 5, Berlin, 10587, Germany
| | - Ling Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China.,Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610065, China
| | - Chao He
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Chong Cheng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Rainer Haag
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, Berlin, 14195, Germany
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9
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Liu R, Ding J. Chromosomal Repositioning and Gene Regulation of Cells on a Micropillar Array. ACS APPLIED MATERIALS & INTERFACES 2020; 12:35799-35812. [PMID: 32667177 DOI: 10.1021/acsami.0c05883] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
While various cell responses on material surfaces have been examined, relatively few reports are focused on significant self-deformation of cell nuclei and corresponding chromosomal repositioning. Herein, we prepared a micropillar array of poly(lactide-co-glycolide) (PLGA) and observed significant nuclear deformation of HeLa cells on the polymeric micropillars. In particular, we detected the territory positioning of chromosomes 18 and 19 and gene expression profiles of HeLa cells on the micropillar array using fluorescence in situ hybridization and a DNA microarray. Chromosome 18 was found to be translocated closer to the nuclear periphery than chromosome 19 on the micropillar array. With the repositioning of chromosomal territories, HeLa cells changed their gene expressions on the micropillar array with 180 genes upregulated and 255 genes downregulated for all of the 23 pairs of chromosomes under the experimental conditions and the employed Bioinformatics criteria. Hence, this work deepens the understanding on cell-material interactions by revealing that material surface topography can probably influence chromosomal repositioning in the nuclei and gene expressions of cells.
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Affiliation(s)
- Ruili Liu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
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Higgins SG, Becce M, Belessiotis-Richards A, Seong H, Sero JE, Stevens MM. High-Aspect-Ratio Nanostructured Surfaces as Biological Metamaterials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1903862. [PMID: 31944430 PMCID: PMC7610849 DOI: 10.1002/adma.201903862] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 10/02/2019] [Indexed: 04/14/2023]
Abstract
Materials patterned with high-aspect-ratio nanostructures have features on similar length scales to cellular components. These surfaces are an extreme topography on the cellular level and have become useful tools for perturbing and sensing the cellular environment. Motivation comes from the ability of high-aspect-ratio nanostructures to deliver cargoes into cells and tissues, access the intracellular environment, and control cell behavior. These structures directly perturb cells' ability to sense and respond to external forces, influencing cell fate, and enabling new mechanistic studies. Through careful design of their nanoscale structure, these systems act as biological metamaterials, eliciting unusual biological responses. While predominantly used to interface eukaryotic cells, there is growing interest in nonanimal and prokaryotic cell interfacing. Both experimental and theoretical studies have attempted to develop a mechanistic understanding for the observed behaviors, predominantly focusing on the cell-nanostructure interface. This review considers how high-aspect-ratio nanostructured surfaces are used to both stimulate and sense biological systems.
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Affiliation(s)
- Stuart G. Higgins
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | | | | | - Hyejeong Seong
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - Julia E. Sero
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - Molly M. Stevens
- Department of Materials, Imperial College London, London, SW7 2AZ, UK
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
- Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
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11
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Mammino L. Five- and six-member bowl-shaped structures from acylphloroglucinols: an ab initio and DFT study. J Mol Model 2019; 26:13. [PMID: 31838594 DOI: 10.1007/s00894-019-4208-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 09/12/2019] [Indexed: 11/29/2022]
Abstract
Molecular structures containing bowl-shaped cavities are interesting for purposes such as hosting molecules or metal ions. Acylphloroglucinols are derivatives of phloroglucinol (1,3,5-trihydroxybenzene) containing a CRO group. A previous study had considered bowl-shaped structures consisting of 3 or 4 identical acylphloroglucinol units linked by methylene bridges, selecting representative R chains and including also a structure with phloroglucinol units. The presence of three 'binding' levels between neighbouring units (consecutive hydrogen bonds in the lower rim, the methylene bridges at intermediate level, and another set of hydrogen bonds in the upper rim) makes these bowls 'deeper' than bowls from other hydroxybenzenes. The current study considers larger bowls, consisting of 5 and 6 identical units, to investigate how the molecular properties change with the increase in the size of the bowl. The monomeric units are the same as in the previous study, and the levels of theory are the same as in the previous study, to enable meaningful comparisons. Like in the previous study, two conformers are considered for each bowl, differing by the orientation of the OH groups in the lower rim. Calculations were performed at the HF/6-31G(d,p) and DFT/B3LYP/6-31+G(d,p) levels with fully relaxed geometry, complemented by single-point MP2/HF/6-31G(d,p) calculations. The results show that the Cnv symmetry (with n being the number of constituting monomers) is maintained for 5-member bowls, while 6-member bowls do not show C6v symmetry but only C2v symmetry. The molecular properties of the calculated bowls are analysed in detail and also compared with the properties of the previously calculated 4- and 5-member bowls. Graphical abstract Bowls built from acylphloroglucinol units have three levels of intermonomer linkages: hydrogen bonds in the bottom rim, methylene bridges at intermediate level, and other hydrogen bonds in the upper rim. They are the deepest bowls that can be built from hydroxybenzene units.
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Affiliation(s)
- Liliana Mammino
- School of Mathematical and Natural Sciences, University of Venda, Thohoyandou, South Africa.
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12
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Donnelly H, Salmeron-Sanchez M, Dalby MJ. Designing stem cell niches for differentiation and self-renewal. J R Soc Interface 2019; 15:rsif.2018.0388. [PMID: 30158185 PMCID: PMC6127175 DOI: 10.1098/rsif.2018.0388] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Accepted: 08/08/2018] [Indexed: 12/15/2022] Open
Abstract
Mesenchymal stem cells, characterized by their ability to differentiate into skeletal tissues and self-renew, hold great promise for both regenerative medicine and novel therapeutic discovery. However, their regenerative capacity is retained only when in contact with their specialized microenvironment, termed the stem cell niche Niches provide structural and functional cues that are both biochemical and biophysical, stem cells integrate this complex array of signals with intrinsic regulatory networks to meet physiological demands. Although, some of these regulatory mechanisms remain poorly understood or difficult to harness with traditional culture systems. Biomaterial strategies are being developed that aim to recapitulate stem cell niches, by engineering microenvironments with physiological-like niche properties that aim to elucidate stem cell-regulatory mechanisms, and to harness their regenerative capacity in vitro In the future, engineered niches will prove important tools for both regenerative medicine and therapeutic discoveries.
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Affiliation(s)
- Hannah Donnelly
- The Centre for the Cellular Microenvironment, University of Glasgow, Glasgow G12 8QQ, UK
| | | | - Matthew J Dalby
- The Centre for the Cellular Microenvironment, University of Glasgow, Glasgow G12 8QQ, UK
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13
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Necula MG, Mazare A, Ion RN, Ozkan S, Park J, Schmuki P, Cimpean A. Lateral Spacing of TiO 2 Nanotubes Modulates Osteoblast Behavior. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2956. [PMID: 31547276 PMCID: PMC6766216 DOI: 10.3390/ma12182956] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/05/2019] [Accepted: 09/10/2019] [Indexed: 01/06/2023]
Abstract
Titanium dioxide (TiO2) nanotube coated substrates have revolutionized the concept of implant in a number of ways, being endowed with superior osseointegration properties and local drug delivery capacity. While accumulating reports describe the influence of nanotube diameter on cell behavior, little is known about the effects of nanotube lateral spacing on cells involved in bone regeneration. In this context, in the present study the MC3T3-E1 murine pre-osteoblast cells behavior has been investigated by using TiO2 nanotubes of ~78 nm diameter and lateral spacing of 18 nm and 80 nm, respectively. Both nanostructured surfaces supported cell viability and proliferation in approximately equal extent. However, obvious differences in the cell spreading areas, morphologies, the organization of the actin cytoskeleton and the pattern of the focal adhesions were noticed. Furthermore, investigation of the pre-osteoblast differentiation potential indicated a higher capacity of larger spacing nanostructure to enhance the expression of the alkaline phosphatase, osteopontin and osteocalcin osteoblast specific markers inducing osteogenic differentiation. These findings provide the proof that lateral spacing of the TiO2 nanotube coated titanium (Ti) surfaces has to be considered in designing bone implants with improved biological performance.
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Affiliation(s)
- Madalina Georgiana Necula
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania.
| | - Anca Mazare
- Department of Materials Science WW4-LKO, Friedrich-Alexander University, 91058 Erlangen, Germany.
| | - Raluca Nicoleta Ion
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania.
| | - Selda Ozkan
- Department of Materials Science WW4-LKO, Friedrich-Alexander University, 91058 Erlangen, Germany.
| | - Jung Park
- Division of Molecular Pediatrics, Department of Pediatrics, University Hospital Erlangen, 91054 Erlangen, Germany.
| | - Patrik Schmuki
- Department of Materials Science WW4-LKO, Friedrich-Alexander University, 91058 Erlangen, Germany.
| | - Anisoara Cimpean
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania.
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14
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Campsie P, Childs PG, Robertson SN, Cameron K, Hough J, Salmeron-Sanchez M, Tsimbouri PM, Vichare P, Dalby MJ, Reid S. Design, construction and characterisation of a novel nanovibrational bioreactor and cultureware for osteogenesis. Sci Rep 2019; 9:12944. [PMID: 31506561 PMCID: PMC6736847 DOI: 10.1038/s41598-019-49422-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 08/23/2019] [Indexed: 11/17/2022] Open
Abstract
In regenerative medicine, techniques which control stem cell lineage commitment are a rapidly expanding field of interest. Recently, nanoscale mechanical stimulation of mesenchymal stem cells (MSCs) has been shown to activate mechanotransduction pathways stimulating osteogenesis in 2D and 3D culture. This has the potential to revolutionise bone graft procedures by creating cellular graft material from autologous or allogeneic sources of MSCs without using chemical induction. With the increased interest in mechanical stimulation of cells and huge potential for clinical use, it is apparent that researchers and clinicians require a scalable bioreactor system that provides consistently reproducible results with a simple turnkey approach. A novel bioreactor system is presented that consists of: a bioreactor vibration plate, calibrated and optimised for nanometre vibrations at 1 kHz, a power supply unit, which supplies a 1 kHz sine wave signal necessary to generate approximately 30 nm of vibration amplitude, and custom 6-well cultureware with toroidal shaped magnets incorporated in the base of each well for conformal attachment to the bioreactor’s magnetic vibration plate. The cultureware and vibration plate were designed using finite element analysis to determine the modal and harmonic responses, and validated by interferometric measurement. This helps ensure that the vibration plate and cultureware, and thus collagen and MSCs, all move as a rigid body, avoiding large deformations close to the resonant frequency of the vibration plate and vibration damping beyond the resonance. Assessment of osteogenic protein expression was performed to confirm differentiation of MSCs after initial biological experiments with the system, as well as atomic force microscopy of the 3D gel constructs during vibrational stimulation to verify that strain hardening of the gel did not occur. This shows that cell differentiation was the result of the nanovibrational stimulation provided by the bioreactor alone, and that other cell differentiating factors, such as stiffening of the collagen gel, did not contribute.
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Affiliation(s)
- Paul Campsie
- SUPA Department of Biomedical Engineering, University of Strathclyde, Glasgow, G1 1QE, UK
| | - Peter G Childs
- Centre for the Cellular Microenvironment, Division of Biomedical Engineering, School of Engineering, College of Science and Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Shaun N Robertson
- SUPA Department of Biomedical Engineering, University of Strathclyde, Glasgow, G1 1QE, UK
| | - Kenny Cameron
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - James Hough
- SUPA Institute for Gravitational Research, School of Physics and Astronomy, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Manuel Salmeron-Sanchez
- Centre for the Cellular Microenvironment, Division of Biomedical Engineering, School of Engineering, College of Science and Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Penelope M Tsimbouri
- Centre for the Cellular Microenvironment, Institute for Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Parag Vichare
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - Matthew J Dalby
- Centre for the Cellular Microenvironment, Institute for Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK.
| | - Stuart Reid
- SUPA Department of Biomedical Engineering, University of Strathclyde, Glasgow, G1 1QE, UK.
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15
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Halonen HT, Ihalainen TO, Hyväri L, Miettinen S, Hyttinen JAK. Cell adhesion and culture medium dependent changes in the high frequency mechanical vibration induced proliferation, osteogenesis, and intracellular organization of human adipose stem cells. J Mech Behav Biomed Mater 2019; 101:103419. [PMID: 31518945 DOI: 10.1016/j.jmbbm.2019.103419] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 08/05/2019] [Accepted: 09/03/2019] [Indexed: 01/21/2023]
Abstract
High frequency (HF) mechanical vibration appears beneficial for in vitro osteogenesis of mesenchymal stem cells (MSCs). However, the current mechanobiological understanding of the method remains insufficient. We designed high-throughput stimulators to apply horizontal or vertical high magnitude HF (HMHF; 2.5 Gpeak, 100 Hz) vibration on human adipose stem cells (hASCs). We analyzed proliferation, alkaline phosphatase (ALP) activity, mineralization, and effects on the actin cytoskeleton and nuclei using immunocytochemical stainings. Proliferation was studied on a standard tissue culture plastic (sTCP) surface and on an adhesion supporting tissue culture plastic (asTCP) surface in basal (BM) and osteogenic (OM) culture medium conditions. We discovered that the improved cell adhesion was a prerequisite for vibration induced changes in the proliferation of hASCs. Similarly, the adhesion supporting surface enabled us to observe vibration initiated ALP activity and mineralization changes in OM condition. The horizontal vibration increased ALP activity, while vertical stimulation reduced ALP activity. However, mineralization was not enhanced by the HMHF vibration. We performed image-based analysis of actin and nuclei to obtain novel data of the intracellular-level responses to HF vibration in BM and OM conditions. Our quantitative results suggest that actin organizations were culture medium and stimulation direction dependent. Both stimulation directions decreased OM induced changes in nuclear size and elongation. Consequently, our findings of the nuclear deformations provide supportive evidence for the involvement of the nuclei in the mechanocoupling of HF vibration. Taken together, the results of this study enhanced the knowledge of the intracellular mechanisms of HF vibration induced osteogenesis of MSCs.
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Affiliation(s)
- H T Halonen
- Computational Biophysics and Imaging Group, Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, 33520, Tampere, Finland.
| | - T O Ihalainen
- Cellular Biophysics Group, Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, 33520, Tampere, Finland.
| | - L Hyväri
- Adult Stem Cell Group, Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, 33520, Tampere, Finland; Research, Development and Innovation Centre, Tampere University Hospital, Biokatu 6, 33520, Tampere, Finland.
| | - S Miettinen
- Adult Stem Cell Group, Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, 33520, Tampere, Finland; Research, Development and Innovation Centre, Tampere University Hospital, Biokatu 6, 33520, Tampere, Finland.
| | - J A K Hyttinen
- Computational Biophysics and Imaging Group, Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, 33520, Tampere, Finland.
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16
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d'Angelo M, Benedetti E, Tupone MG, Catanesi M, Castelli V, Antonosante A, Cimini A. The Role of Stiffness in Cell Reprogramming: A Potential Role for Biomaterials in Inducing Tissue Regeneration. Cells 2019; 8:E1036. [PMID: 31491966 PMCID: PMC6770247 DOI: 10.3390/cells8091036] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/30/2019] [Accepted: 09/04/2019] [Indexed: 01/12/2023] Open
Abstract
The mechanotransduction is the process by which cells sense mechanical stimuli such as elasticity, viscosity, and nanotopography of extracellular matrix and translate them into biochemical signals. The mechanotransduction regulates several aspects of the cell behavior, including migration, proliferation, and differentiation in a time-dependent manner. Several reports have indicated that cell behavior and fate are not transmitted by a single signal, but rather by an intricate network of many signals operating on different length and timescales that determine cell fate. Since cell biology and biomaterial technology are fundamentals in cell-based regenerative therapies, comprehending the interaction between cells and biomaterials may allow the design of new biomaterials for clinical therapeutic applications in tissue regeneration. In this work, we present the most relevant mechanism by which the biomechanical properties of extracellular matrix (ECM) influence cell reprogramming, with particular attention on the new technologies and materials engineering, in which are taken into account not only the biochemical and biophysical signals patterns but also the factor time.
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Affiliation(s)
- Michele d'Angelo
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Elisabetta Benedetti
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Maria Grazia Tupone
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Mariano Catanesi
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Vanessa Castelli
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Andrea Antonosante
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Annamaria Cimini
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
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17
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Hansel C, Crowder SW, Cooper S, Gopal S, João Pardelha da Cruz M, de Oliveira Martins L, Keller D, Rothery S, Becce M, Cass AEG, Bakal C, Chiappini C, Stevens MM. Nanoneedle-Mediated Stimulation of Cell Mechanotransduction Machinery. ACS NANO 2019; 13:2913-2926. [PMID: 30829469 PMCID: PMC6439438 DOI: 10.1021/acsnano.8b06998] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 02/21/2019] [Indexed: 05/21/2023]
Abstract
Biomaterial substrates can be engineered to present topographical signals to cells which, through interactions between the material and active components of the cell membrane, regulate key cellular processes and guide cell fate decisions. However, targeting mechanoresponsive elements that reside within the intracellular domain is a concept that has only recently emerged. Here, we show that mesoporous silicon nanoneedle arrays interact simultaneously with the cell membrane, cytoskeleton, and nucleus of primary human cells, generating distinct responses at each of these cellular compartments. Specifically, nanoneedles inhibit focal adhesion maturation at the membrane, reduce tension in the cytoskeleton, and lead to remodeling of the nuclear envelope at sites of impingement. The combined changes in actin cytoskeleton assembly, expression and segregation of the nuclear lamina, and localization of Yes-associated protein (YAP) correlate differently from what is canonically observed upon stimulation at the cell membrane, revealing that biophysical cues directed to the intracellular space can generate heretofore unobserved mechanosensory responses. These findings highlight the ability of nanoneedles to study and direct the phenotype of large cell populations simultaneously, through biophysical interactions with multiple mechanoresponsive components.
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Affiliation(s)
- Catherine
S. Hansel
- Department
of Materials, Department of Chemistry, Department of Bioengineering, Institute for Biomedical
Engineering, Department of Surgery and Cancer, Department of Medicine, and Facility for Imaging by Light Microscopy, Imperial College London, London SW7 2AZ, United Kingdom
| | - Spencer W. Crowder
- Department
of Materials, Department of Chemistry, Department of Bioengineering, Institute for Biomedical
Engineering, Department of Surgery and Cancer, Department of Medicine, and Facility for Imaging by Light Microscopy, Imperial College London, London SW7 2AZ, United Kingdom
| | - Samuel Cooper
- Department
of Materials, Department of Chemistry, Department of Bioengineering, Institute for Biomedical
Engineering, Department of Surgery and Cancer, Department of Medicine, and Facility for Imaging by Light Microscopy, Imperial College London, London SW7 2AZ, United Kingdom
- Chester Beatty
Laboratories, Institute for Cancer Research, London SW3 6JB, U.K.
| | - Sahana Gopal
- Department
of Materials, Department of Chemistry, Department of Bioengineering, Institute for Biomedical
Engineering, Department of Surgery and Cancer, Department of Medicine, and Facility for Imaging by Light Microscopy, Imperial College London, London SW7 2AZ, United Kingdom
| | - Maria João Pardelha da Cruz
- Department
of Materials, Department of Chemistry, Department of Bioengineering, Institute for Biomedical
Engineering, Department of Surgery and Cancer, Department of Medicine, and Facility for Imaging by Light Microscopy, Imperial College London, London SW7 2AZ, United Kingdom
- Department
of Bioengineering and Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de
Lisboa, 1649-004 Lisbon, Portugal
| | - Leonardo de Oliveira Martins
- Department
of Materials, Department of Chemistry, Department of Bioengineering, Institute for Biomedical
Engineering, Department of Surgery and Cancer, Department of Medicine, and Facility for Imaging by Light Microscopy, Imperial College London, London SW7 2AZ, United Kingdom
| | - Debora Keller
- Department
of Materials, Department of Chemistry, Department of Bioengineering, Institute for Biomedical
Engineering, Department of Surgery and Cancer, Department of Medicine, and Facility for Imaging by Light Microscopy, Imperial College London, London SW7 2AZ, United Kingdom
| | - Stephen Rothery
- Department
of Materials, Department of Chemistry, Department of Bioengineering, Institute for Biomedical
Engineering, Department of Surgery and Cancer, Department of Medicine, and Facility for Imaging by Light Microscopy, Imperial College London, London SW7 2AZ, United Kingdom
| | - Michele Becce
- Department
of Materials, Department of Chemistry, Department of Bioengineering, Institute for Biomedical
Engineering, Department of Surgery and Cancer, Department of Medicine, and Facility for Imaging by Light Microscopy, Imperial College London, London SW7 2AZ, United Kingdom
| | - Anthony E. G. Cass
- Department
of Materials, Department of Chemistry, Department of Bioengineering, Institute for Biomedical
Engineering, Department of Surgery and Cancer, Department of Medicine, and Facility for Imaging by Light Microscopy, Imperial College London, London SW7 2AZ, United Kingdom
| | - Chris Bakal
- Chester Beatty
Laboratories, Institute for Cancer Research, London SW3 6JB, U.K.
| | - Ciro Chiappini
- Department
of Materials, Department of Chemistry, Department of Bioengineering, Institute for Biomedical
Engineering, Department of Surgery and Cancer, Department of Medicine, and Facility for Imaging by Light Microscopy, Imperial College London, London SW7 2AZ, United Kingdom
| | - Molly M. Stevens
- Department
of Materials, Department of Chemistry, Department of Bioengineering, Institute for Biomedical
Engineering, Department of Surgery and Cancer, Department of Medicine, and Facility for Imaging by Light Microscopy, Imperial College London, London SW7 2AZ, United Kingdom
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18
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Cimmino C, Rossano L, Netti PA, Ventre M. Spatio-Temporal Control of Cell Adhesion: Toward Programmable Platforms to Manipulate Cell Functions and Fate. Front Bioeng Biotechnol 2018; 6:190. [PMID: 30564573 PMCID: PMC6288377 DOI: 10.3389/fbioe.2018.00190] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 11/21/2018] [Indexed: 01/06/2023] Open
Abstract
Biophysical and biochemical signals of material surfaces potently regulate cell functions and fate. In particular, micro- and nano-scale patterns of adhesion signals can finely elicit and affect a plethora of signaling pathways ultimately affecting gene expression, in a process known as mechanotransduction. Our fundamental understanding of cell-material signals interaction and reaction is based on static culturing platforms, i.e., substrates exhibiting signals whose configuration is time-invariant. However, cells in-vivo are exposed to arrays of biophysical and biochemical signals that change in time and space and the way cells integrate these might eventually dictate their behavior. Advancements in fabrication technologies and materials engineering, have recently enabled the development of culturing platforms able to display patterns of biochemical and biophysical signals whose features change in time and space in response to external stimuli and according to selected programmes. These dynamic devices proved to be particularly helpful in shedding light on how cells adapt to a dynamic microenvironment or integrate spatio-temporal variations of signals. In this work, we present the most relevant findings in the context of dynamic platforms for controlling cell functions and fate in vitro. We place emphasis on the technological aspects concerning the fabrication of platforms displaying micro- and nano-scale dynamic signals and on the physical-chemical stimuli necessary to actuate the spatio-temporal changes of the signal patterns. In particular, we illustrate strategies to encode material surfaces with dynamic ligands and patterns thereof, topographic relieves and mechanical properties. Additionally, we present the most effective, yet cytocompatible methods to actuate the spatio-temporal changes of the signals. We focus on cell reaction and response to dynamic changes of signal presentation. Finally, potential applications of this new generation of culturing systems for in vitro and in vivo applications, including regenerative medicine and cell conditioning are presented.
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Affiliation(s)
- Chiara Cimmino
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy
- Center for Advanced Biomaterials for Healthcare@CRIB, Fondazione Istituto Italiano di Tecnologia, Naples, Italy
| | - Lucia Rossano
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy
- Center for Advanced Biomaterials for Healthcare@CRIB, Fondazione Istituto Italiano di Tecnologia, Naples, Italy
| | - Paolo Antonio Netti
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy
- Center for Advanced Biomaterials for Healthcare@CRIB, Fondazione Istituto Italiano di Tecnologia, Naples, Italy
| | - Maurizio Ventre
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy
- Center for Advanced Biomaterials for Healthcare@CRIB, Fondazione Istituto Italiano di Tecnologia, Naples, Italy
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19
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Lin Y, Shao Y, Li J, Zhang W, Zheng K, Zheng X, Huang X, Liao Z, Xie Y, He J. The hierarchical micro-/nanotextured topographies promote the proliferation and angiogenesis-related genes expression in human umbilical vein endothelial cells by initiation of Hedgehog-Gli1 signaling. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:S1141-S1151. [PMID: 30453796 DOI: 10.1080/21691401.2018.1533845] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yao Lin
- The Department of Stomatology, Jieyang Affiliated Hospital, SunYat-sen University, Jieyang, Guangdong, China
| | - Yiming Shao
- The Intensive Care Unit, Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Jieyin Li
- The Department of Stomatology, Jieyang Affiliated Hospital, SunYat-sen University, Jieyang, Guangdong, China
| | - Wenying Zhang
- The Intensive Care Unit, Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Kaibin Zheng
- The Department of Stomatology, Jieyang Affiliated Hospital, SunYat-sen University, Jieyang, Guangdong, China
| | - Xuying Zheng
- The Department of Stomatology, Jieyang Affiliated Hospital, SunYat-sen University, Jieyang, Guangdong, China
| | - Xiaoman Huang
- The Department of Stomatology, Jieyang Affiliated Hospital, SunYat-sen University, Jieyang, Guangdong, China
| | - Zipeng Liao
- The Department of Stomatology, Jieyang Affiliated Hospital, SunYat-sen University, Jieyang, Guangdong, China
| | - Yirui Xie
- The Department of Stomatology, Jieyang Affiliated Hospital, SunYat-sen University, Jieyang, Guangdong, China
| | - Junbing He
- The Intensive Care Unit, Jieyang Affiliated Hospital, SunYat-sen University, Jieyang, Guangdong, China
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20
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Kim Y, Meade SM, Chen K, Feng H, Rayyan J, Hess-Dunning A, Ereifej ES. Nano-Architectural Approaches for Improved Intracortical Interface Technologies. Front Neurosci 2018; 12:456. [PMID: 30065623 PMCID: PMC6056633 DOI: 10.3389/fnins.2018.00456] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 06/14/2018] [Indexed: 12/19/2022] Open
Abstract
Intracortical microelectrodes (IME) are neural devices that initially were designed to function as neuroscience tools to enable researchers to understand the nervous system. Over the years, technology that aids interfacing with the nervous system has allowed the ability to treat patients with a wide range of neurological injuries and diseases. Despite the substantial success that has been demonstrated using IME in neural interface applications, these implants eventually fail due to loss of quality recording signals. Recent strategies to improve interfacing with the nervous system have been inspired by methods that mimic the native tissue. This review focusses on one strategy in particular, nano-architecture, a term we introduce that encompasses the approach of roughening the surface of the implant. Various nano-architecture approaches have been hypothesized to improve the biocompatibility of IMEs, enhance the recording quality, and increase the longevity of the implant. This review will begin by introducing IME technology and discuss the challenges facing the clinical deployment of IME technology. The biological inspiration of nano-architecture approaches will be explained as well as leading fabrication methods used to create nano-architecture and their limitations. A review of the effects of nano-architecture surfaces on neural cells will be examined, depicting the various cellular responses to these modified surfaces in both in vitro and pre-clinical models. The proposed mechanism elucidating the ability of nano-architectures to influence cellular phenotype will be considered. Finally, the frontiers of next generation nano-architecture IMEs will be identified, with perspective given on the future impact of this interfacing approach.
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Affiliation(s)
- Youjoung Kim
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, United States
| | - Seth M. Meade
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, United States
| | - Keying Chen
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, United States
| | - He Feng
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, United States
| | - Jacob Rayyan
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, United States
| | - Allison Hess-Dunning
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, United States
| | - Evon S. Ereifej
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, United States
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21
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Ankam S, Teo BKK, Pohan G, Ho SWL, Lim CK, Yim EKF. Temporal Changes in Nucleus Morphology, Lamin A/C and Histone Methylation During Nanotopography-Induced Neuronal Differentiation of Stem Cells. Front Bioeng Biotechnol 2018; 6:69. [PMID: 29904629 PMCID: PMC5990852 DOI: 10.3389/fbioe.2018.00069] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 05/09/2018] [Indexed: 01/14/2023] Open
Abstract
Stem cell differentiation can be regulated by biophysical cues such as nanotopography. It involves sensing and integration of these biophysical cues into their transcriptome with a mechanism that is yet to be discovered. In addition to the cytoskeletal and focal adhesion remodeling, nanotopography has also been shown to modulate nucleus morphology. Here, we studied the effect of nanotopography on the temporal changes in nuclei of human embryonic stem cells (hESCs) and human mesenchymal stem cells (hMSCs). Using a high throughput Multi-architecture (MARC) chip analysis, the circularity of the stem cell nuclei changed significantly on different patterns. Human ESCs and MSCs showed different temporal changes in nucleus morphology, lamin A/C expression and histone methylation during topography-induced neuronal differentiation. In hESCs, the expression of nuclear matrix protein, lamin A/C during neuronal differentiation of hESCs on PDMS samples were weakly detected in the first 7 days of differentiation. The histone 3 trimethylation on Lysine 9 (H3K9me3) decreased after differentiation initiated and showed temporal changes in their expression and organization during neuronal differentiation. In hMSCs, the expression of lamin A/C was significantly increased after the first 24 h of cell culture. The quantitative analysis of histone methylation also showed a significant increase in hMSCs histone methylation on 250 nm anisotropic nanogratings within the first 24 h of seeding. This reiterates the importance of cell-substrate sensing within the first 24 h for adult stem cells. The lamin A/C expression and histone methylation shows a correlation of epigenetic changes in early events of differentiation, giving an insight on how extracellular nanotopographical cues are transduced into nuclear biochemical signals. Collectively, these results provide more understanding into the nuclear regulation of the mechanotransduction of nanotopographical cues in stem cell differentiation.
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Affiliation(s)
- Soneela Ankam
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Benjamin K K Teo
- Mechanobiology Institute Singapore, National University of Singapore, Singapore, Singapore
| | - Grace Pohan
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON, Canada
| | - Shawn W L Ho
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - Choon K Lim
- Mechanobiology Institute Singapore, National University of Singapore, Singapore, Singapore
| | - Evelyn K F Yim
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore.,Mechanobiology Institute Singapore, National University of Singapore, Singapore, Singapore.,Department of Chemical Engineering, University of Waterloo, Waterloo, ON, Canada.,Department of Surgery, National University of Singapore, Singapore, Singapore
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22
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Messina GML, Bocchinfuso G, Giamblanco N, Mazzuca C, Palleschi A, Marletta G. Orienting proteins by nanostructured surfaces: evidence of a curvature-driven geometrical resonance. NANOSCALE 2018; 10:7544-7555. [PMID: 29637964 DOI: 10.1039/c8nr00037a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Experimental and theoretical reports have shown that nanostructured surfaces have a dramatic effect on the amount of protein adsorbed and the conformational state and, in turn, on the performances of the related devices in tissue engineering strategies. Here we report an innovative method to prepare silica-based nanostructured surfaces with a reproducible, well-defined local curvature, consisting of ordered hexagonally packed arrays of curved hemispheres, from nanoparticles of different diameters (respectively 147 nm, 235 nm and 403 nm). The nanostructured surfaces have been made chemically homogeneous by partially embedding silica nanoparticles in poly(hydroxymethylsiloxane) films, further modified by means of UV-O3 treatments. This paper has been focused on the experimental and theoretical study of laminin, taken as a model protein, to study the nanocurvature effects on the protein configuration at nanostructured surfaces. A simple model, based on the interplay of electrostatic interactions between the charged terminal domains of laminin and the nanocurved charged surfaces, closely reproduces the experimental findings. In particular, the model suggests that nanocurvature drives the orientation of rigid proteins by means of a "geometrical resonance" effect, involving the matching of dimensions, charge distribution and spatial arrangement of both adsorbed molecules and adsorbent nanostructures. Overall, the results pave the way to unravel the nanostructured surface effects on the intra- and inter-molecular organization processes of proteins.
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Affiliation(s)
- Grazia M L Messina
- Laboratory for Molecular Surfaces and Nanotechnology (LAMSUN), Department of Chemical Sciences, University of Catania, Viale A.Doria 6, 95125 Catania, Italy.
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Anselme K, Wakhloo NT, Rougerie P, Pieuchot L. Role of the Nucleus as a Sensor of Cell Environment Topography. Adv Healthc Mater 2018; 7:e1701154. [PMID: 29283219 DOI: 10.1002/adhm.201701154] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 11/06/2017] [Indexed: 12/25/2022]
Abstract
The proper integration of biophysical cues from the cell vicinity is crucial for cells to maintain homeostasis, cooperate with other cells within the tissues, and properly fulfill their biological function. It is therefore crucial to fully understand how cells integrate these extracellular signals for tissue engineering and regenerative medicine. Topography has emerged as a prominent component of the cellular microenvironment that has pleiotropic effects on cell behavior. This progress report focuses on the recent advances in the understanding of the topography sensing mechanism with a special emphasis on the role of the nucleus. Here, recent techniques developed for monitoring the nuclear mechanics are reviewed and the impact of various topographies and their consequences on nuclear organization, gene regulation, and stem cell fate is summarized. The role of the cell nucleus as a sensor of cell-scale topography is further discussed.
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Affiliation(s)
- Karine Anselme
- University of Haute‐AlsaceUniversity of Strasbourg CNRS UMR7361, IS2M 68057 Mulhouse France
| | - Nayana Tusamda Wakhloo
- University of Haute‐AlsaceUniversity of Strasbourg CNRS UMR7361, IS2M 68057 Mulhouse France
| | - Pablo Rougerie
- Institute of Biomedical SciencesFederal University of Rio de Janeiro Rio de Janeiro RJ 21941‐902 Brazil
| | - Laurent Pieuchot
- University of Haute‐AlsaceUniversity of Strasbourg CNRS UMR7361, IS2M 68057 Mulhouse France
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24
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Future Challenges in the Generation of Hepatocyte-Like Cells From Human Pluripotent Stem Cells. CURRENT PATHOBIOLOGY REPORTS 2017. [DOI: 10.1007/s40139-017-0150-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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25
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Donnelly H, Smith CA, Sweeten PE, Gadegaard N, Meek RD, D'Este M, Mata A, Eglin D, Dalby MJ. Bone and cartilage differentiation of a single stem cell population driven by material interface. J Tissue Eng 2017; 8:2041731417705615. [PMID: 28567273 PMCID: PMC5438107 DOI: 10.1177/2041731417705615] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 03/29/2017] [Indexed: 01/26/2023] Open
Abstract
Adult stem cells, such as mesenchymal stem cells, are a multipotent cell source able to differentiate towards multiple cell types. While used widely in tissue engineering and biomaterials research, they present inherent donor variability and functionalities. In addition, their potential to form multiple tissues is rarely exploited. Here, we combine an osteogenic nanotopography and a chondrogenic hyaluronan hydrogel with the hypothesis that we can make a complex tissue from a single multipotent cell source with the exemplar of creating a three-dimensional bone–cartilage boundary environment. Marrow stromal cells were seeded onto the topographical surface and the temperature gelling hydrogel laid on top. Cells that remained on the nanotopography spread and formed osteoblast-like cells, while those that were seeded into or migrated into the gel remained rounded and expressed chondrogenic markers. This novel, simple interfacial environment provides a platform for anisotropic differentiation of cells from a single source, which could ultimately be exploited to sort osteogenic and chondrogenic progenitor cells from a marrow stromal cell population and to develop a tissue engineered interface.
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Affiliation(s)
- Hannah Donnelly
- Centre for Cell Engineering, University of Glasgow, Glasgow, UK
| | | | - Paula E Sweeten
- Centre for Cell Engineering, University of Glasgow, Glasgow, UK
| | - Nikolaj Gadegaard
- Division of Biomedical Engineering, University of Glasgow, Glasgow, UK
| | - Rm Dominic Meek
- Department of Orthopaedics, Southern General Hospital, Glasgow, UK
| | | | - Alvaro Mata
- Institute of Bioengineering, Queen Mary University of London, London, UK.,School of Engineering and Materials Science, Queen Mary University of London, London, UK
| | - David Eglin
- AO Research Institute Davos, Davos, Switzerland
| | - Matthew J Dalby
- Centre for Cell Engineering, University of Glasgow, Glasgow, UK
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26
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Lin Y, Huang Y, He J, Chen F, He Y, Zhang W. Role of Hedgehog-Gli1 signaling in the enhanced proliferation and differentiation of MG63 cells enabled by hierarchical micro-/nanotextured topography. Int J Nanomedicine 2017; 12:3267-3280. [PMID: 28458545 PMCID: PMC5404496 DOI: 10.2147/ijn.s135045] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Hedgehog–Gli1 signaling is evolutionarily conserved and plays an essential role in osteoblast proliferation and differentiation as well as bone formation. To evaluate the role of the Hedgehog–Gli1 pathway in the response of osteoblasts to hierarchical biomaterial topographies, human MG63 osteoblasts were seeded onto smooth, microstructured, and micro-/nanotextured topography (MNT) titanium to assess osteoblast proliferation and differentiation in terms of proliferative activity, alkaline phosphatase (ALP) production, and osteogenesis-related gene expression. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to detect the mRNA expression of Sonic hedgehog (Shh), Smoothened (Smo), and Gli1, and the protein levels were assayed by Western blotting. MG63 cells treated with the Smo inhibitor cyclopamine were seeded onto the titanium specimens, and the cell proliferation and differentiation were studied in the presence or absence of cyclopamine. Our results showed that compared to the smooth and microstructured surfaces, the MNTs induced a higher gene expression and protein production of Shh, Smo, and Gli1 as well as the activation of Hedgehog signaling. The enhanced proliferative activity, ALP production, and expression of the osteogenesis-related genes (bone morphogenetic protein-2, ALP, and runt-related transcription factor 2) enabled by the MNTs were significantly downregulated by the presence of cyclopamine to a similar level as those on the smooth and acid-etched microstructured surfaces in the absence of cyclopamine. This evidence explicitly demonstrates pivotal roles of Hedgehog–Gli1 signaling pathway in mediating the enhanced effect of MNTs on MG63 proliferation and differentiation, which greatly advances our understanding of the mechanism involved in the biological responsiveness of biomaterial topographies. These findings may aid in the optimization of hierarchical biomaterial topographies targeting Hedgehog–Gli1 signaling.
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Affiliation(s)
- Yao Lin
- Department of Stomatology, Taishan People's Hospital, Affiliated to Guangdong Medical University, Taishan
| | - Yinghe Huang
- Department of Stomatology, Taishan People's Hospital, Affiliated to Guangdong Medical University, Taishan
| | - Junbing He
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Institute of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, People's Republic of China
| | - Feng Chen
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Institute of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, People's Republic of China
| | - Yanfang He
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Institute of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, People's Republic of China
| | - Wenying Zhang
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Institute of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, People's Republic of China
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Macrotopographic closure promotes tissue growth and osteogenesis in vitro. Acta Biomater 2017; 53:536-548. [PMID: 28254365 DOI: 10.1016/j.actbio.2017.02.037] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 01/23/2017] [Accepted: 02/20/2017] [Indexed: 12/18/2022]
Abstract
While the impact of substrate topographies at nano- and microscale on bone cell behavior has been particularly well documented, very few studies have analyzed the role of substrate closure at a tissular level. Moreover, these have focused on matrix deposition rather than on osteoblastic differentiation. In the present work, mouse calvaria cells were grown for 15days on hydroxyapatite (HA) ceramics textured with three different macrogrooves shapes (**100µm): 1 sine and 2 triangle waveforms. We found that macrotopography favors cell attachment, and that bone-like tissue growth and organization are promoted by a tight "closure angle" of the substrate geometry. Interestingly, while Flat HA controls showed little marker expression at the end of the culture, cells grown on macrogrooves, and in particular the most closed (triangle waveform with a 517µm spatial period) showed a fast time-course of osteoblast differentiation, reaching high levels of gene and protein expression of osteocalcin and sclerostin, a marker of osteocytes. STATEMENT OF SIGNIFICANCE Many in vitro studies have been conducted on topography at nano and microscale, fewer have focused on the influence of macrotopography on osteoblasts. Ceramics with a controlled architecture were obtained throught a 3D printing process and used to assess osteoblast behavior. Biocompatible, they allowed the long-terme survival of osteoblast cells and the laying of an important bone matrix. V-shaped grooves were found to accelerates osteoblast differentiation and promote bone-like tissue deposition and maturation (osteocyte formation), proportionately to angle closure. Such macrostructures are attractive for the design of innovative implants for bone tissue engineering and in vitro models of osteogenesis.
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Li Y, Xiao Y, Liu C. The Horizon of Materiobiology: A Perspective on Material-Guided Cell Behaviors and Tissue Engineering. Chem Rev 2017; 117:4376-4421. [PMID: 28221776 DOI: 10.1021/acs.chemrev.6b00654] [Citation(s) in RCA: 345] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Although the biological functions of cell and tissue can be regulated by biochemical factors (e.g., growth factors, hormones), the biophysical effects of materials on the regulation of biological activity are receiving more attention. In this Review, we systematically summarize the recent progress on how biomaterials with controllable properties (e.g., compositional/degradable dynamics, mechanical properties, 2D topography, and 3D geometry) can regulate cell behaviors (e.g., cell adhesion, spreading, proliferation, cell alignment, and the differentiation or self-maintenance of stem cells) and tissue/organ functions. How the biophysical features of materials influence tissue/organ regeneration have been elucidated. Current challenges and a perspective on the development of novel materials that can modulate specific biological functions are discussed. The interdependent relationship between biomaterials and biology leads us to propose the concept of "materiobiology", which is a scientific discipline that studies the biological effects of the properties of biomaterials on biological functions at cell, tissue, organ, and the whole organism levels. This Review highlights that it is more important to develop ECM-mimicking biomaterials having a self-regenerative capacity to stimulate tissue regeneration, instead of attempting to recreate the complexity of living tissues or tissue constructs ex vivo. The principles of materiobiology may benefit the development of novel biomaterials providing combinative bioactive cues to activate the migration of stem cells from endogenous reservoirs (i.e., cell niches), stimulate robust and scalable self-healing mechanisms, and unlock the body's innate powers of regeneration.
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Affiliation(s)
- Yulin Li
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology , Meilong Road 130, Shanghai 200237, People's Republic of China
| | - Yin Xiao
- Institute of Health and Biomedical Innovation, Queensland University of Technology , Kelvin Grove, Brisbane, Queensland 4059, Australia
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology , Meilong Road 130, Shanghai 200237, People's Republic of China
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Yang Y, Wang K, Gu X, Leong KW. Biophysical Regulation of Cell Behavior-Cross Talk between Substrate Stiffness and Nanotopography. ENGINEERING (BEIJING, CHINA) 2017; 3:36-54. [PMID: 29071164 PMCID: PMC5653318 DOI: 10.1016/j.eng.2017.01.014] [Citation(s) in RCA: 150] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The stiffness and nanotopographical characteristics of the extracellular matrix (ECM) influence numerous developmental, physiological, and pathological processes in vivo. These biophysical cues have therefore been applied to modulate almost all aspects of cell behavior, from cell adhesion and spreading to proliferation and differentiation. Delineation of the biophysical modulation of cell behavior is critical to the rational design of new biomaterials, implants, and medical devices. The effects of stiffness and topographical cues on cell behavior have previously been reviewed, respectively; however, the interwoven effects of stiffness and nanotopographical cues on cell behavior have not been well described, despite similarities in phenotypic manifestations. Herein, we first review the effects of substrate stiffness and nanotopography on cell behavior, and then focus on intracellular transmission of the biophysical signals from integrins to nucleus. Attempts are made to connect extracellular regulation of cell behavior with the biophysical cues. We then discuss the challenges in dissecting the biophysical regulation of cell behavior and in translating the mechanistic understanding of these cues to tissue engineering and regenerative medicine.
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Affiliation(s)
- Yong Yang
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Kai Wang
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Xiaosong Gu
- Key Laboratory of Neuroregeneration of Jiangsu and the Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, China
| | - Kam W. Leong
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
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Li Z, Wang W, Kratz K, Küchler J, Xu X, Zou J, Deng Z, Sun X, Gossen M, Ma N, Lendlein A. Influence of surface roughness on neural differentiation of human induced pluripotent stem cells. Clin Hemorheol Microcirc 2017; 64:355-366. [DOI: 10.3233/ch-168121] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zhengdong Li
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Weiwei Wang
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Karl Kratz
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Helmholtz Virtual Institute - Multifunctional Materials in Medicine, Teltow, Germany
| | - Judit Küchler
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Xun Xu
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Jie Zou
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Zijun Deng
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Xianlei Sun
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Manfred Gossen
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Helmholtz Virtual Institute - Multifunctional Materials in Medicine, Teltow, Germany
| | - Nan Ma
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
- Helmholtz Virtual Institute - Multifunctional Materials in Medicine, Teltow, Germany
| | - Andreas Lendlein
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
- Helmholtz Virtual Institute - Multifunctional Materials in Medicine, Teltow, Germany
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Dobbenga S, Fratila-Apachitei LE, Zadpoor AA. Nanopattern-induced osteogenic differentiation of stem cells - A systematic review. Acta Biomater 2016; 46:3-14. [PMID: 27667018 DOI: 10.1016/j.actbio.2016.09.031] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 09/07/2016] [Accepted: 09/22/2016] [Indexed: 01/16/2023]
Abstract
It is well known that biomaterials topography can influence the behavior of stem cells. Nevertheless, the fundamentals and the impact of nanoscale topography are just emerging. The main objective of this review has been to reveal the state-of-the-art on the effects of controlled nanoscale topographies (nanopatterns) on in vitro osteogenic differentiation of mesenchymal stem cells (MSCs) in the absence of osteogenic supplements. The findings indicate that nanopatterns with specific feature sizes, spatial arrangements, or shapes may induce osteogenic differentiation of MSCs. Regardless of substrate chemistry, nanopattern-induced osteogenic differentiation is associated with large focal adhesions, enhanced cell areas, and well organized cytoskeleton. These results suggest that earlier interactions between nanopattern features and cell receptors are involved, with effects on the entire cell structure and subsequent differentiation. Such events are possibly mediated by nanotopography-induced mechanotransduction pathways. The findings so far reveal that nanoscale topography has potential for directing differentiation of MSCs towards the osteogenic lineage in non-osteogenic media and should be harnessed for possible synergistic effects in bone regenerative therapies. STATEMENT OF SIGNIFICANCE The use of nanotopography to induce cellular responses represents a novel and rapidly growing area of research. Nevertheless, the findings and trends so far are difficult to identify and discuss mostly due to a non-systematic research approach. The present manuscript is providing a systematic review focused on nanopattern-induced osteogenic differentiation of mesenchymal stem cells. The coverage of the most relevant aspects including nanopatterns fabrication methods, their effects on osteogenic differentiation of mesenchymal stem cells as well as the related effects on adhesion and cell morphology has enabled an integrated discussion including the potential mechanotransduction mechanisms involved. Furthermore, a clear distinction between the studies that use only surface nanotopographies and the ones that mix nanotopographical features with osteogenic supplements has been made. This delineation is essential for revealing and understanding the role of biomaterial's nanotopography per se on stem cells differentiation based on which novel osteoinductive biomaterials can be developed.
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Ngandu Mpoyi E, Cantini M, Reynolds PM, Gadegaard N, Dalby M, Salmerón-Sánchez M. Protein Adsorption as a Key Mediator in the Nanotopographical Control of Cell Behavior. ACS NANO 2016; 10:6638-47. [PMID: 27391047 PMCID: PMC4980054 DOI: 10.1021/acsnano.6b01649] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Surface nanotopography is widely employed to control cell behavior and in particular controlled disorder has been shown to be important in cell differentiation/maturation. However, extracellular matrix proteins, such as fibronectin (FN), initially adsorbed on a biomaterial surface are known to mediate the interaction of synthetic materials with cells. In this work, we examine the effect of nanotopography on cell behavior through this adsorbed layer of adhesive proteins using a nanostructured polycarbonate surface comprising 150 nm-diameter pits originally defined using electron beam lithography. We address the effect of this nanopitted surface on FN adsorption and subsequently on cell morphology and behavior using C2C12 myoblasts. Wettability measurements and atomic force microscopy imaging showed that protein is adsorbed both within the interpits spaces and inside the nanopits. Cells responded to this coated nanotopography with the formation of fewer but larger focal adhesions and by mimicking the pit patterns within their cytoskeleton, nanoimprinting, ultimately achieving higher levels of myogenic differentiation compared to a flat control. Both focal adhesion assembly and nanoimprinting were found to be dependent on cell contractility and are adversely affected by the use of blebbistatin. Our results demonstrate the central role of the nanoscale protein interface in mediating cell-nanotopographical interactions and implicate this interface as helping control the mechanotransductive cascade.
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Affiliation(s)
- Elie Ngandu Mpoyi
- Division
of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, United Kingdom
| | - Marco Cantini
- Division
of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, United Kingdom
| | - Paul M. Reynolds
- Division
of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, United Kingdom
| | - Nikolaj Gadegaard
- Division
of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, United Kingdom
| | - Matthew
J. Dalby
- Center
for Cell Engineering, Institute of Molecular Cell and Systems Biology, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Manuel Salmerón-Sánchez
- Division
of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, United Kingdom
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de Vicente G, Lensen MC. Topographically and elastically micropatterned PEG-based hydrogels to control cell adhesion and migration. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.03.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Azeem A, English A, Kumar P, Satyam A, Biggs M, Jones E, Tripathi B, Basu N, Henkel J, Vaquette C, Rooney N, Riley G, O'Riordan A, Cross G, Ivanovski S, Hutmacher D, Pandit A, Zeugolis D. The influence of anisotropic nano- to micro-topography on in vitro and in vivo osteogenesis. Nanomedicine (Lond) 2016; 10:693-711. [PMID: 25816874 DOI: 10.2217/nnm.14.218] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AIM Topographically modified substrates are increasingly used in tissue engineering to enhance biomimicry. The overarching hypothesis is that topographical cues will control cellular response at the cell-substrate interface. MATERIALS & METHODS The influence of anisotropically ordered poly(lactic-co-glycolic acid) substrates (constant groove width of ~1860 nm; constant line width of ~2220 nm; variable groove depth of ~35, 306 and 2046 nm) on in vitro and in vivo osteogenesis were assessed. RESULTS & DISCUSSION We demonstrate that substrates with groove depths of approximately 306 and 2046 nm promote osteoblast alignment parallel to underlined topography in vitro. However, none of the topographies assessed promoted directional osteogenesis in vivo. CONCLUSION 2D imprinting technologies are useful tools for in vitro cell phenotype maintenance.
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Affiliation(s)
- Ayesha Azeem
- Network of Excellence for Functional Biomaterials (NFB), Biosciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
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Jung AR, Kim RY, Kim HW, Shrestha KR, Jeon SH, Cha KJ, Park YH, Kim DS, Lee JY. Nanoengineered Polystyrene Surfaces with Nanopore Array Pattern Alters Cytoskeleton Organization and Enhances Induction of Neural Differentiation of Human Adipose-Derived Stem Cells. Tissue Eng Part A 2016; 21:2115-24. [PMID: 25919423 DOI: 10.1089/ten.tea.2014.0346] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Human adipose-derived stem cells (hADSCs) can differentiate into various cell types depending on chemical and topographical cues. One topographical cue recently noted to be successful in inducing differentiation is the nanoengineered polystyrene surface containing nanopore array-patterned substrate (NP substrate), which is designed to mimic the nanoscale topographical features of the extracellular matrix. In this study, efficacies of NP and flat substrates in inducing neural differentiation of hADSCs were examined by comparing their substrate-cell adhesion rates, filopodia growth, nuclei elongation, and expression of neural-specific markers. The polystyrene nano Petri dishes containing NP substrates were fabricated by a nano injection molding process using a nickel electroformed nano-mold insert (Diameter: 200 nm. Depth of pore: 500 nm. Center-to-center distance: 500 nm). Cytoskeleton and filopodia structures were observed by scanning electron microscopy and F-actin staining, while cell adhesion was tested by vinculin staining after 24 and 48 h of seeding. Expression of neural specific markers was examined by real-time quantitative polymerase chain reaction and immunocytochemistry. Results showed that NP substrates lead to greater substrate-cell adhesion, filopodia growth, nuclei elongation, and expression of neural specific markers compared to flat substrates. These results not only show the advantages of NP substrates, but they also suggest that further study into cell-substrate interactions may yield great benefits for biomaterial engineering.
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Affiliation(s)
- Ae Ryang Jung
- 1 Department of Urology, Seoul St. Mary's Hospital, The Catholic University of Korea , Seoul, Korea
| | - Richard Y Kim
- 1 Department of Urology, Seoul St. Mary's Hospital, The Catholic University of Korea , Seoul, Korea
| | - Hyung Woo Kim
- 2 Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH) , Pohang, Korea
| | - Kshitiz Raj Shrestha
- 1 Department of Urology, Seoul St. Mary's Hospital, The Catholic University of Korea , Seoul, Korea
| | - Seung Hwan Jeon
- 1 Department of Urology, Seoul St. Mary's Hospital, The Catholic University of Korea , Seoul, Korea
| | - Kyoung Je Cha
- 2 Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH) , Pohang, Korea
| | - Yong Hyun Park
- 1 Department of Urology, Seoul St. Mary's Hospital, The Catholic University of Korea , Seoul, Korea
| | - Dong Sung Kim
- 2 Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH) , Pohang, Korea
| | - Ji Youl Lee
- 1 Department of Urology, Seoul St. Mary's Hospital, The Catholic University of Korea , Seoul, Korea
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Viswanathan P, Guvendiren M, Chua W, Telerman SB, Liakath-Ali K, Burdick JA, Watt FM. Mimicking the topography of the epidermal-dermal interface with elastomer substrates. Integr Biol (Camb) 2016; 8:21-9. [PMID: 26658424 DOI: 10.1039/c5ib00238a] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
In human skin the interface between the epidermis and dermis is not flat, but undulates. The dimensions of the undulations change as a function of age and disease. Epidermal stem cell clusters lie in specific locations relative to the undulations; however, whether their location affects their properties is unknown. To explore this, we developed a two-step protocol to create patterned substrates that mimic the topographical features of the human epidermal-dermal interface. Substrates with negative patterns were first fabricated by exposing a photocurable formulation to light, controlling the topographical features (such as diameter, height and center-to-center distance) by the photomask pattern dimensions and UV crosslinking time. The negative pattern was then translated to PDMS elastomer to fabricate substrates with 8 unique surface topographies on which primary human keratinocytes were cultured. We found that cells were patterned according to topography, and that separate cues determined the locations of stem cells, differentiated cells and proliferating cells. The biomimetic platform we have developed will be useful for probing the effect of topography on stem cell behaviour.
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Affiliation(s)
- Priyalakshmi Viswanathan
- Centre for Stem Cells and Regenerative Medicine, King's College London, 28th Floor, Tower Wing, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK.
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Ding X, Zhou L, Wang J, Zhao Q, Lin X, Gao Y, Li S, Wu J, Rong M, Guo Z, Lai C, Lu H, Jia F. The effects of hierarchical micro/nanosurfaces decorated with TiO2 nanotubes on the bioactivity of titanium implants in vitro and in vivo. Int J Nanomedicine 2015; 10:6955-73. [PMID: 26635472 PMCID: PMC4646597 DOI: 10.2147/ijn.s87347] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
In the present work, a hierarchical hybrid micro/nanostructured titanium surface was obtained by sandblasting with large grit and acid etching (SLA), and nanotubes of different diameters (30 nm, 50 nm, and 80 nm) were superimposed by anodization. The effect of each SLA-treated surface decorated with nanotubes (SLA + 30 nm, SLA + 50 nm, and SLA + 80 nm) on osteogenesis was studied in vitro and in vivo. The human MG63 osteosarcoma cell line was used for cytocompatibility evaluation, which showed that cell adhesion and proliferation were dramatically enhanced on SLA + 30 nm. In comparison with cells grown on the other tested surfaces, those grown on SLA + 80 nm showed an enhanced expression of osteogenesis-related genes. Cell spread was also enhanced on SLA + 80 nm. A canine model was used for in vivo evaluation of bone bonding. Histological examination demonstrated that new bone was formed more rapidly on SLA-treated surfaces with nanotubes (especially SLA + 80 nm) than on those without nanotubes. All of these results indicate that SLA + 80 nm is favorable for promoting the activity of osteoblasts and early bone bonding.
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Affiliation(s)
- Xianglong Ding
- Center of Oral Implantology, Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Lei Zhou
- Center of Oral Implantology, Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Jingxu Wang
- Department of Stomatology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Qingxia Zhao
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Xi Lin
- Center of Oral Implantology, Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Yan Gao
- Center of Oral Implantology, Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Shaobing Li
- Department of Periodontics and Implantology, Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Jingyi Wu
- Center of Oral Implantology, Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Mingdeng Rong
- Department of Periodontics and Implantology, Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Zehong Guo
- Center of Oral Implantology, Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Chunhua Lai
- Center of Oral Implantology, Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Haibin Lu
- Department of Periodontics and Implantology, Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Fang Jia
- Center of Oral Implantology, Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
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English A, Azeem A, Spanoudes K, Jones E, Tripathi B, Basu N, McNamara K, Tofail SAM, Rooney N, Riley G, O'Riordan A, Cross G, Hutmacher D, Biggs M, Pandit A, Zeugolis DI. Substrate topography: A valuable in vitro tool, but a clinical red herring for in vivo tenogenesis. Acta Biomater 2015; 27:3-12. [PMID: 26318365 DOI: 10.1016/j.actbio.2015.08.035] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Revised: 08/22/2015] [Accepted: 08/25/2015] [Indexed: 01/22/2023]
Abstract
Controlling the cell-substrate interactions at the bio-interface is becoming an inherent element in the design of implantable devices. Modulation of cellular adhesion in vitro, through topographical cues, is a well-documented process that offers control over subsequent cellular functions. However, it is still unclear whether surface topography can be translated into a clinically functional response in vivo at the tissue/device interface. Herein, we demonstrated that anisotropic substrates with a groove depth of ∼317nm and ∼1988nm promoted human tenocyte alignment parallel to the underlying topography in vitro. However, the rigid poly(lactic-co-glycolic acid) substrates used in this study upregulated the expression of chondrogenic and osteogenic genes, indicating possible tenocyte trans-differentiation. Of significant importance is that none of the topographies assessed (∼37nm, ∼317nm and ∼1988nm groove depth) induced extracellular matrix orientation parallel to the substrate orientation in a rat patellar tendon model. These data indicate that two-dimensional imprinting technologies are useful tools for in vitro cell phenotype maintenance, rather than for organised neotissue formation in vivo, should multifactorial approaches that consider both surface topography and substrate rigidity be established. STATEMENT OF SIGNIFICANCE Herein, we ventured to assess the influence of parallel groves, ranging from nano- to micro-level, on tenocytes response in vitro and on host response using a tendon and a subcutaneous model. In vitro analysis indicates that anisotropically ordered micro-scale grooves, as opposed to nano-scale grooves, maintain physiological cell morphology. The rather rigid PLGA substrates appeared to induce trans-differentiation towards chondrogenic and/or steogenic lineage, as evidence by TILDA gene analysis. In vivo data in both tendon and subcutaneous models indicate that none of the substrates induced bidirectional host cell and tissue growth. Collective, these observations indicate that two-dimensional imprinting technologies are useful tools for in vitro cell phenotype maintenance, rather than for directional neotissue formation, should multifactorial approaches that consider both surface topography and substrate rigidity be established.
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Affiliation(s)
- Andrew English
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biosciences Research Building (BRB), National University of Ireland Galway (NUI Galway), Galway, Ireland; Network of Excellence for Functional Biomaterials (NFB), BRB, NUI Galway, Galway, Ireland; Centre for Research in Medical Devices (CÚRAM), BRB, NUI Galway, Galway, Ireland
| | - Ayesha Azeem
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biosciences Research Building (BRB), National University of Ireland Galway (NUI Galway), Galway, Ireland; Network of Excellence for Functional Biomaterials (NFB), BRB, NUI Galway, Galway, Ireland; Centre for Research in Medical Devices (CÚRAM), BRB, NUI Galway, Galway, Ireland
| | - Kyriakos Spanoudes
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biosciences Research Building (BRB), National University of Ireland Galway (NUI Galway), Galway, Ireland; Network of Excellence for Functional Biomaterials (NFB), BRB, NUI Galway, Galway, Ireland; Centre for Research in Medical Devices (CÚRAM), BRB, NUI Galway, Galway, Ireland
| | - Eleanor Jones
- School of Biological Sciences, University of East Anglia, Norwich, UK
| | - Bhawana Tripathi
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland
| | - Nandita Basu
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland
| | - Karrina McNamara
- Materials and Surface Science Institute (MSSI), Department of Physics and Energy, University of Limerick, Limerick, Ireland
| | - Syed A M Tofail
- Materials and Surface Science Institute (MSSI), Department of Physics and Energy, University of Limerick, Limerick, Ireland
| | | | - Graham Riley
- School of Biological Sciences, University of East Anglia, Norwich, UK
| | | | - Graham Cross
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland
| | - Dietmar Hutmacher
- Institute of Health & Biomedical Innovation, Queensland University of Technology, Australia
| | - Manus Biggs
- Network of Excellence for Functional Biomaterials (NFB), BRB, NUI Galway, Galway, Ireland; Centre for Research in Medical Devices (CÚRAM), BRB, NUI Galway, Galway, Ireland
| | - Abhay Pandit
- Network of Excellence for Functional Biomaterials (NFB), BRB, NUI Galway, Galway, Ireland; Centre for Research in Medical Devices (CÚRAM), BRB, NUI Galway, Galway, Ireland
| | - Dimitrios I Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biosciences Research Building (BRB), National University of Ireland Galway (NUI Galway), Galway, Ireland; Network of Excellence for Functional Biomaterials (NFB), BRB, NUI Galway, Galway, Ireland; Centre for Research in Medical Devices (CÚRAM), BRB, NUI Galway, Galway, Ireland.
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Tatman PD, Gerull W, Sweeney-Easter S, Davis JI, Gee AO, Kim DH. Multiscale Biofabrication of Articular Cartilage: Bioinspired and Biomimetic Approaches. TISSUE ENGINEERING PART B-REVIEWS 2015. [PMID: 26200439 DOI: 10.1089/ten.teb.2015.0142] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Articular cartilage is the load-bearing tissue found inside all articulating joints of the body. It vastly reduces friction and allows for smooth gliding between contacting surfaces. The structure of articular cartilage matrix and cellular composition is zonal and is important for its mechanical properties. When cartilage becomes injured through trauma or disease, it has poor intrinsic healing capabilities. The spectrum of cartilage injury ranges from isolated areas of the joint to diffuse breakdown and the clinical appearance of osteoarthritis. Current clinical treatment options remain limited in their ability to restore cartilage to its normal functional state. This review focuses on the evolution of biomaterial scaffolds that have been used for functional cartilage tissue engineering. In particular, we highlight recent developments in multiscale biofabrication approaches attempting to recapitulate the complex 3D matrix of native articular cartilage tissue. Additionally, we focus on the application of these methods to engineering each zone of cartilage and engineering full-thickness osteochondral tissues for improved clinical implantation. These methods have shown the potential to control individual cell-to-scaffold interactions and drive progenitor cell differentiation into a chondrocyte lineage. The use of these bioinspired nanoengineered scaffolds hold promise for recreation of structure and function on the whole tissue level and may represent exciting new developments for future clinical applications for cartilage injury and restoration.
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Affiliation(s)
- Philip David Tatman
- 1 Department of Bioengineering, University of Washington , Seattle, Washington
| | - William Gerull
- 1 Department of Bioengineering, University of Washington , Seattle, Washington
| | - Sean Sweeney-Easter
- 1 Department of Bioengineering, University of Washington , Seattle, Washington
| | - Jeffrey Isaac Davis
- 1 Department of Bioengineering, University of Washington , Seattle, Washington
| | - Albert O Gee
- 2 Department of Orthopedics and Sports Medicine, University of Washington , Seattle, Washington
| | - Deok-Ho Kim
- 1 Department of Bioengineering, University of Washington , Seattle, Washington.,3 Institute for Stem Cell and Regenerative Medicine, University of Washington , Seattle, Washington
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Tsimbouri PM. Adult Stem Cell Responses to Nanostimuli. J Funct Biomater 2015; 6:598-622. [PMID: 26193326 PMCID: PMC4598673 DOI: 10.3390/jfb6030598] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 06/29/2015] [Accepted: 07/08/2015] [Indexed: 12/31/2022] Open
Abstract
Adult or mesenchymal stem cells (MSCs) have been found in different tissues in the body, residing in stem cell microenvironments called "stem cell niches". They play different roles but their main activity is to maintain tissue homeostasis and repair throughout the lifetime of an organism. Their ability to differentiate into different cell types makes them an ideal tool to study tissue development and to use them in cell-based therapies. This differentiation process is subject to both internal and external forces at the nanoscale level and this response of stem cells to nanostimuli is the focus of this review.
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Affiliation(s)
- Penelope M Tsimbouri
- Centre for Cell Engineering, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK.
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Lobo J, See EYS, Biggs M, Pandit A. An insight into morphometric descriptors of cell shape that pertain to regenerative medicine. J Tissue Eng Regen Med 2015; 10:539-53. [DOI: 10.1002/term.1994] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 08/25/2014] [Accepted: 12/09/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Joana Lobo
- Network of Excellence for Functional Biomaterials (NFB); National University of Ireland; Galway Ireland
| | - Eugene Yong-Shun See
- Network of Excellence for Functional Biomaterials (NFB); National University of Ireland; Galway Ireland
| | - Manus Biggs
- Network of Excellence for Functional Biomaterials (NFB); National University of Ireland; Galway Ireland
| | - Abhay Pandit
- Network of Excellence for Functional Biomaterials (NFB); National University of Ireland; Galway Ireland
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Pemberton GD, Childs P, Reid S, Nikukar H, Tsimbouri PM, Gadegaard N, Curtis ASG, Dalby MJ. Nanoscale stimulation of osteoblastogenesis from mesenchymal stem cells: nanotopography and nanokicking. Nanomedicine (Lond) 2015; 10:547-60. [PMID: 25723089 DOI: 10.2217/nnm.14.134] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
AIM Mesenchymal stem cells (MSCs) have large regenerative potential to replace damaged cells from several tissues along the mesodermal lineage. The potency of these cells promises to change the longer term prognosis for many degenerative conditions currently suffered by our aging population. We have endeavored to demonstrate our ability to induce osteoblatogenesis in MSCs using high-frequency (1000-5000 Hz) piezo-driven nanodisplacements (16-30 nm displacements) in a vertical direction. MATERIALS & METHODS Osteoblastogenesis has been determined by the upregulation of osteoblasic genes such as osteonectin (ONN), RUNX2 and Osterix, assessed via quantitative real-time PCR; the increase of osteocalcin (OCN) and osteopontin (OPN) at the protein level and the deposition of calcium phosphate determined by histological staining. RESULTS Intriguingly, we have observed a relationship between nanotopography and piezo-stimulated mechanotransduction and possibly see evidence of two differing osteogenic mechanisms at work. These data provide confidence in nanomechanotransduction for stem cell differentiation without dependence on soluble factors and complex chemistries. CONCLUSION In the future it is envisaged that this technology may have beneficial therapeutic applications in the healthcare industry, for conditions whose overall phenotype maybe characterized by weak or damaged bones (e.g., osteoporosis and bone fractures), and which can benefit from having an increased number of osteoblastic cells in vivo.
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Affiliation(s)
- Gabriel D Pemberton
- Centre for cell Engineering, Institute for Molecular, Cell & Systems Biology, College of Medical, Veterinary & Life Sciencies, University of Glasgow, Glasgow, G12 8QQ, UK
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Nanogrooved substrate promotes direct lineage reprogramming of fibroblasts to functional induced dopaminergic neurons. Biomaterials 2015; 45:36-45. [DOI: 10.1016/j.biomaterials.2014.12.049] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 12/10/2014] [Accepted: 12/20/2014] [Indexed: 01/14/2023]
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McMurray RJ, Dalby MJ, Tsimbouri PM. Using biomaterials to study stem cell mechanotransduction, growth and differentiation. J Tissue Eng Regen Med 2014; 9:528-39. [DOI: 10.1002/term.1957] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 06/11/2014] [Accepted: 08/28/2014] [Indexed: 12/22/2022]
Affiliation(s)
- Rebecca J. McMurray
- Mrksich Research Group, Department of Biomedical Engineering; Northwestern University; Evanston IL USA
| | - Matthew J. Dalby
- Centre for Cell Engineering, Institute of Molecular, Cell and Systems Biology; University of Glasgow; UK
| | - P. Monica Tsimbouri
- Centre for Cell Engineering, Institute of Molecular, Cell and Systems Biology; University of Glasgow; UK
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Abstract
With advancements in biological and engineering sciences, the definition of an ideal biomaterial has evolved over the past 50 years from a substance that is inert to one that has select bioinductive properties and integrates well with adjacent host tissue. Biomaterials are a fundamental component of tissue engineering, which aims to replace diseased, damaged, or missing tissue with reconstructed functional tissue. Most biomaterials are less than satisfactory for pediatric patients because the scaffold must adapt to the growth and development of the surrounding tissues and organs over time. The pediatric community, therefore, provides a distinct challenge for the tissue engineering community.
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Affiliation(s)
- Timothy J Keane
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, Bridgeside Point 2, 450 Technology Drive, Pittsburgh, Pennsylvania 15219; Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, Bridgeside Point 2, 450 Technology Drive, Pittsburgh, Pennsylvania 15219; Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania.
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Dalby MJ, Gadegaard N, Oreffo ROC. Harnessing nanotopography and integrin-matrix interactions to influence stem cell fate. NATURE MATERIALS 2014; 13:558-69. [PMID: 24845995 DOI: 10.1038/nmat3980] [Citation(s) in RCA: 702] [Impact Index Per Article: 70.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Accepted: 04/09/2014] [Indexed: 05/19/2023]
Abstract
Stem cells respond to nanoscale surface features, with changes in cell growth and differentiation mediated by alterations in cell adhesion. The interaction of nanotopographical features with integrin receptors in the cells' focal adhesions alters how the cells adhere to materials surfaces, and defines cell fate through changes in both cell biochemistry and cell morphology. In this Review, we discuss how cell adhesions interact with nanotopography, and we provide insight as to how materials scientists can exploit these interactions to direct stem cell fate and to understand how the behaviour of stem cells in their niche can be controlled. We expect knowledge gained from the study of cell-nanotopography interactions to accelerate the development of next-generation stem cell culture materials and implant interfaces, and to fuel discovery of stem cell therapeutics to support regenerative therapies.
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Affiliation(s)
- Matthew J Dalby
- Centre for Cell Engineering, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, Scotland, UK
| | - Nikolaj Gadegaard
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, Scotland, UK
| | - Richard O C Oreffo
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton SO16 6YD, UK
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Curtis AS, Tsimbouri PM. Epigenesis: roles of nanotopography, nanoforces and nanovibration. Expert Rev Med Devices 2014; 11:417-23. [DOI: 10.1586/17434440.2014.916205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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48
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Sundaramurthi D, Krishnan UM, Sethuraman S. Electrospun Nanofibers as Scaffolds for Skin Tissue Engineering. POLYM REV 2014. [DOI: 10.1080/15583724.2014.881374] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Gasiorowski JZ, Murphy CJ, Nealey PF. Biophysical cues and cell behavior: the big impact of little things. Annu Rev Biomed Eng 2014; 15:155-76. [PMID: 23862676 DOI: 10.1146/annurev-bioeng-071811-150021] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The extracellular matrix is composed of a variety of proteins, polysaccharides, and glycosaminoglycans that self-assemble into a hierarchical order of nanometer- to micrometer-scale fibrils and fibers. The shapes, sizes, and elasticity present within this highly ordered meshwork regulate behaviors in most cell types. It has been well documented that cellular migration, proliferation, differentiation, and tissue development are all influenced by matrix geometries and compliance, but how these external biophysical cues are translated into activated intracellular signaling cascades remains poorly understood. Fortunately, technological improvements in artificial substrate fabrication have provided biologists with tools to test cellular interactions within controlled three-dimensional environments. Here, we review cellular responses to biophysical cues and discuss their clinical relevancy and application. We focus especially on integrative approaches that aim to first characterize the properties of specific extracellular matrices and then precisely fabricate biomimetic materials to elucidate how relevant cells respond to the individual biophysical cues present in their native tissues. Through these types of comprehensive studies, biologists have begun to understand and appreciate how exceedingly small features can have a significant impact on the regulation, development, and homeostasis of cells and tissues.
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Affiliation(s)
- Joshua Z Gasiorowski
- Department of Biomedical Sciences, Midwestern University, Downers Grove, IL 60515, USA
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Kolind K, Kraft D, Bøggild T, Duch M, Lovmand J, Pedersen FS, Bindslev DA, Bünger CE, Foss M, Besenbacher F. Control of proliferation and osteogenic differentiation of human dental-pulp-derived stem cells by distinct surface structures. Acta Biomater 2014; 10:641-50. [PMID: 24252446 DOI: 10.1016/j.actbio.2013.11.006] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 11/09/2013] [Accepted: 11/11/2013] [Indexed: 01/07/2023]
Abstract
The ability to control the behavior of stem cells provides crucial benefits, for example, in tissue engineering and toxicity/drug screening, which utilize the stem cell's capacity to engineer new tissues for regenerative purposes and the testing of new drugs in vitro. Recently, surface topography has been shown to influence stem cell differentiation; however, general trends are often difficult to establish due to differences in length scales, surface chemistries and detailed surface topographies. Here we apply a highly versatile screening approach to analyze the interplay of surface topographical parameters on cell attachment, morphology, proliferation and osteogenic differentiation of human mesenchymal dental-pulp-derived stem cells (DPSCs) cultured with and without osteogenic differentiation factors in the medium (ODM). Increasing the inter-pillar gap size from 1 to 6 μm for surfaces with small pillar sizes of 1 and 2 μm resulted in decreased proliferation and in more elongated cells with long pseudopodial protrusions. The same alterations of pillar topography, up to an inter-pillar gap size of 4 μm, also resulted in enhanced mineralization of DPSCs cultured without ODM, while no significant trend was observed for DPSCs cultured with ODM. Generally, cells cultured without ODM had a larger deposition of osteogenic markers on structured surfaces relative to the unstructured surfaces than what was found when culturing with ODM. We conclude that the topographical design of biomaterials can be optimized for the regulation of DPSC differentiation and speculate that the inclusion of ODM alters the ability of the cells to sense surface topographical cues. These results are essential in order to transfer the use of this highly proliferative, easily accessible stem cell into the clinic for use in cell therapy and regenerative medicine.
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Affiliation(s)
- K Kolind
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000 Aarhus C, Denmark
| | - D Kraft
- Department of Orthodontics, School of Dentistry, Aarhus University, DK-8000 Aarhus C, Denmark
| | - T Bøggild
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000 Aarhus C, Denmark
| | - M Duch
- Department of Molecular Biology, Aarhus University, DK-8000 Aarhus C, Denmark
| | - J Lovmand
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000 Aarhus C, Denmark
| | - F S Pedersen
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000 Aarhus C, Denmark; Department of Molecular Biology, Aarhus University, DK-8000 Aarhus C, Denmark
| | - D A Bindslev
- Department of Orthodontics, School of Dentistry, Aarhus University, DK-8000 Aarhus C, Denmark
| | - C E Bünger
- Department of Orthopaedic Surgery, Aarhus University Hospital, DK-8000 Aarhus C, Denmark
| | - M Foss
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000 Aarhus C, Denmark.
| | - F Besenbacher
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000 Aarhus C, Denmark; Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
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