Nano-topography sensing by osteoclasts.

doi:10.1242/JCS.060954

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Nano-topography sensing by osteoclasts.

Journal Article•DOI•

Nano-topography sensing by osteoclasts.

Dafna Geblinger¹, Lia Addadi¹, Benjamin Geiger¹•Institutions (1)

Weizmann Institute of Science¹

01 May 2010-Journal of Cell Science (The Company of Biologists Ltd)-Vol. 123, Iss: 10, pp 1503-1510

TL;DR: It was observed that steps or sub-micrometer cracks on the smooth surface stimulate local ring formation, raising the possibility that similar imperfections on bone surfaces may stimulate local osteoclast resorptive activity.

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Abstract: Bone resorption by osteoclasts depends on the assembly of a specialized, actin-rich adhesive ‘sealing zone’ that delimits the area designed for degradation. In this study, we show that the level of roughness of the underlying adhesive surface has a profound effect on the formation and stability of the sealing zone and the associated F-actin. As our primary model substrate, we use ‘smooth’ and ‘rough’ calcite crystals with average topography values of 12 nm and 530 nm, respectively. We show that the smooth surfaces induce the formation of small and unstable actin rings with a typical lifespan of ~8 minutes, whereas the sealing zones formed on the rough calcite surfaces are considerably larger, and remain stable for more than 6 hours. It was further observed that steps or sub-micrometer cracks on the smooth surface stimulate local ring formation, raising the possibility that similar imperfections on bone surfaces may stimulate local osteoclast resorptive activity. The mechanisms whereby the physical properties of the substrate influence osteoclast behavior and their involvement in osteoclast function are discussed.

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Journal Article•DOI•

Nanoporous titanium implant surface promotes osteogenesis by suppressing osteoclastogenesis via integrin β1/FAKpY397/MAPK pathway.

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Yide He¹, Zhe Li¹, Xin Ding¹, Boya Xu¹, Jinjin Wang¹, Yi Li¹, Fanghao Chen¹, Fanhui Meng¹, Wen Song¹, Yumei Zhang¹ - Show less +6 more•Institutions (1)

Fourth Military Medical University¹

01 Feb 2022-Bioactive Materials

TL;DR: Data indicate that physical topography of implant surface is a critical factor modulating monocyte/macrophage lineage commitment, which provides theoretical guidance and mechanism basis for promoting osseointegration by coupling the osteogenesis and osteoclastogenesis.

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28 citations

Cites background from "Nano-topography sensing by osteocla..."

...resorptive units, which is regulated at multiple levels in time and space [11]....
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...The same tendency was also demonstrated on the surface of glass substrate [11]....
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Journal Article•DOI•

Osteoclastogenic differentiation of human precursor cells over micro- and nanostructured hydroxyapatite topography.

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João Costa-Rodrigues¹, João Costa-Rodrigues², S. C. Carmo¹, I.P. Perpétuo³, Fernando J. Monteiro¹, Maria Helena Fernandes¹ - Show less +2 more•Institutions (3)

University of Porto¹, Instituto Politécnico Nacional², Instituto de Medicina Molecular³

01 Apr 2016-Biochimica et Biophysica Acta

TL;DR: The decrease on the average grain diameter to the nanoscale range (HA3) was accompanied by an increase in surface area, porosity and hydrophilicity and a decrease in roughness, indicating a lower osteoclastic adhesion, differentiation and function.

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27 citations

Journal Article•DOI•

Nanoporous titanium implant surface promotes osteogenesis by suppressing osteoclastogenesis via integrin β1/FAKpY397/MAPK pathway

[...]

01 Feb 2022-Bioactive Materials

TL;DR: In this paper , the effect of implant surface topography on monocyte/macrophage lineage osteoclastogenesis and the subsequent effect on osteogenesis are systematically investigated, where the nanoporous surface is fabricated on titanium implant by etching and anodizing to get the nanotubes structure.

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27 citations

Journal Article•DOI•

β3 integrin expression is required for invadopodia-mediated ECM degradation in lung carcinoma cells.

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Rafael Peláez¹, Xabier Morales¹, Elizabeth Salvo¹, Saray Garasa¹, Carlos Solorzano, Alfredo Martínez, Ignacio M. Larrayoz, Ana Rouzaut², Ana Rouzaut¹ - Show less +5 more•Institutions (2)

Chartered Institute of Management Accountants¹, University of Navarra²

02 Aug 2017-PLOS ONE

TL;DR: The results suggest that β3 integrin function, and location, in lung cancer cells are essential for invadopodia formation, and this integrin regulates the activation of different signal pathways necessary for the invasive structure.

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Abstract: Cancer related deaths are primarily due to tumor metastasis. To facilitate their dissemination to distant sites, cancer cells develop invadopodia, actin-rich protrusions capable of degrading the surrounding extracellular matrix (ECM). We aimed to determine whether β3 integrin participates in invadopodia formed by lung carcinoma cells, based on our previous findings of specific TGF-β induction of β3 integrin dependent metastasis in animal models of lung carcinoma. In this study, we demonstrate that lung carcinoma cells form invadopodia in response to TGF-β exposure. Invadopodia formation and degradation activity is dependent on β3 integrin expression since β3 integrin deficient cells are not able to degrade gelatin-coated surfaces. Even more, transient over-expression of SRC did not restore invadopodia formation in β3 integrin deficient cells. Finally, we observed that blockade of PLC-dependent signaling leads to more intense labeling for β3 integrin in invadopodia. Our results suggest that β3 integrin function, and location, in lung cancer cells are essential for invadopodia formation, and this integrin regulates the activation of different signal pathways necessary for the invasive structure. β3 integrin has been associated with poor prognosis and increased metastasis in several carcinoma types, including lung cancer. Our findings provide new evidence to support the use of targeted therapies against this integrin to combat the onset of metastases.

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24 citations

Journal Article•DOI•

Micro- and Nanoscale Topographies on Silk Regulate Gene Expression of Human Corneal Epithelial Cells

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Kai B. Kang¹, Brian D. Lawrence², X. Raymond Gao¹, Yuncin Luo¹, Qiang Zhou¹, Aihong Liu², Victor H. Guaiquil¹, Mark I. Rosenblatt¹ - Show less +4 more•Institutions (2)

University of Illinois at Chicago¹, Cornell University²

01 Dec 2017-Investigative Ophthalmology & Visual Science

TL;DR: Patterned silk film substrates may serve as a scaffold and provide biophysical cues to corneal epithelial cells that change their gene expression, alter cellular adherence, morphology, and may offer a promising customizable material for use in ocular surface repair.

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Abstract: Purpose Corneal basement membrane has topographical features that provide biophysical cues to direct cell adherence, migration, and proliferation. In this study, we hypothesize that varying topographic pitch created on silk films can alter epithelial cell morphology, adhesion, and the genetic expression involved in cytoskeletal dynamics-related pathways. Methods Silicon wafers with parallel ridge widths of 2000, 1000, and 800 nm were produced and used to pattern silk films via soft lithography. Human corneal epithelial cells were cultured onto silk. After 72 hours of incubation, images were taken to study cell morphology and alignment. Cytoskeletal structures were studied by immunofluorescent staining. RNA was collected from cultured cells to perform RNA-Seq transcriptome analysis using the Illumina Hiseq 2500 sequencing system. Differentially expressed genes were identified using DNAstar Qseq then verified using quantitative real-time PCR. These genes were used to perform pathway analyses using Ingenuity Pathways Analysis. Results Primary human corneal epithelial cell alignment to the surface pattern was the greatest on 1000-nm features. Fluorescent microscopy of f-actin staining showed cell cytoskeleton alignment either in parallel (2000 nm) or perpendicular (1000 and 800 nm) to the long feature axis. Z-stack projection of vinculin staining indicated increased focal adhesion formation localized on the cellular basal surface. RNA-seq analysis revealed differentially expressed genes involved in actin organization, integrin signaling, and focal adhesion kinase signaling (-log (P)>5). Conclusions Patterned silk film substrates may serve as a scaffold and provide biophysical cues to corneal epithelial cells that change their gene expression, alter cellular adherence, morphology, and may offer a promising customizable material for use in ocular surface repair.

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23 citations

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Journal Article•DOI•

Matrix elasticity directs stem cell lineage specification.

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Adam J. Engler¹, Shamik Sen¹, H. Lee Sweeney¹, Dennis E. Discher•Institutions (1)

University of Pennsylvania¹

25 Aug 2006-Cell

TL;DR: Naive mesenchymal stem cells are shown here to specify lineage and commit to phenotypes with extreme sensitivity to tissue-level elasticity, consistent with the elasticity-insensitive commitment of differentiated cell types.

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12,204 citations

"Nano-topography sensing by osteocla..." refers background in this paper

...…cell proliferation, gene expression and cell viability (Bershadsky et al., 2006a; Chen et al., 1997; Diener et al., 2005; Discher et al., 2005; Engler et al., 2006; Geiger et al., 2009; Kunzler et al., 2007; Lo et al., 2000; Roach et al., 2007; Saltel et al., 2004; Vogel and Sheetz, 2006)....
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...…et al., 1999; Roach et al., 2007; Shimizu et al., 1989), local density of the adhesive ligands (Arnold et al., 2004; Arnold et al., 2008; Hirschfeld-Warneken et al., 2008), and physical properties (Bershadsky et al., 2006a; Bershadsky et al., 2006b; Engler et al., 2006; Vogel and Sheetz, 2006)....
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...…a widespread cellular phenomenon, whereby cells collect information on the substrate on which they grow, integrate it, and develop a response (Bershadsky et al., 2006a; Chen et al., 1997; Diener et al., 2005; Discher et al., 2005; Engler et al., 2006; Geiger et al., 2009; Vogel and Sheetz, 2006)....
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...…respond to chemical and physical properties of the underlying matrix, such as rigidity, mechanical activity, ligand density and dimensionality (Bershadsky et al., 2006a; Chen et al., 1997; Diener et al., 2005; Discher et al., 2005; Engler et al., 2006; Geiger et al., 2009; Vogel and Sheetz, 2006)....
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Journal Article•DOI•

Tissue Cells Feel and Respond to the Stiffness of Their Substrate

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Dennis E. Discher¹, Paul A. Janmey¹, Yu-li Wang²•Institutions (2)

University of Pennsylvania¹, University of Massachusetts Medical School²

18 Nov 2005-Science

TL;DR: An understanding of how tissue cells—including fibroblasts, myocytes, neurons, and other cell types—sense matrix stiffness is just emerging with quantitative studies of cells adhering to gels with which elasticity can be tuned to approximate that of tissues.

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Abstract: Normal tissue cells are generally not viable when suspended in a fluid and are therefore said to be anchorage dependent. Such cells must adhere to a solid, but a solid can be as rigid as glass or softer than a baby's skin. The behavior of some cells on soft materials is characteristic of important phenotypes; for example, cell growth on soft agar gels is used to identify cancer cells. However, an understanding of how tissue cells-including fibroblasts, myocytes, neurons, and other cell types-sense matrix stiffness is just emerging with quantitative studies of cells adhering to gels (or to other cells) with which elasticity can be tuned to approximate that of tissues. Key roles in molecular pathways are played by adhesion complexes and the actinmyosin cytoskeleton, whose contractile forces are transmitted through transcellular structures. The feedback of local matrix stiffness on cell state likely has important implications for development, differentiation, disease, and regeneration.

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5,889 citations

"Nano-topography sensing by osteocla..." refers background in this paper

...…a widespread cellular phenomenon, whereby cells collect information on the substrate on which they grow, integrate it, and develop a response (Bershadsky et al., 2006a; Chen et al., 1997; Diener et al., 2005; Discher et al., 2005; Engler et al., 2006; Geiger et al., 2009; Vogel and Sheetz, 2006)....
[...]
...…migration, ECM remodeling, cell proliferation, gene expression and cell viability (Bershadsky et al., 2006a; Chen et al., 1997; Diener et al., 2005; Discher et al., 2005; Engler et al., 2006; Geiger et al., 2009; Kunzler et al., 2007; Lo et al., 2000; Roach et al., 2007; Saltel et al., 2004; Vogel…...
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...…respond to chemical and physical properties of the underlying matrix, such as rigidity, mechanical activity, ligand density and dimensionality (Bershadsky et al., 2006a; Chen et al., 1997; Diener et al., 2005; Discher et al., 2005; Engler et al., 2006; Geiger et al., 2009; Vogel and Sheetz, 2006)....
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Journal Article•DOI•

Geometric control of cell life and death.

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Christopher S. Chen¹, Milan Mrksich¹, Sui Huang¹, George M. Whitesides¹, Donald E. Ingber¹ - Show less +1 more•Institutions (1)

Harvard University¹

30 May 1997-Science

TL;DR: Human and bovine capillary endothelial cells were switched from growth to apoptosis by using micropatterned substrates that contained extracellular matrix-coated adhesive islands of decreasing size to progressively restrict cell extension.

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Abstract: Human and bovine capillary endothelial cells were switched from growth to apoptosis by using micropatterned substrates that contained extracellular matrix-coated adhesive islands of decreasing size to progressively restrict cell extension. Cell spreading also was varied while maintaining the total cell-matrix contact area constant by changing the spacing between multiple focal adhesion-sized islands. Cell shape was found to govern whether individual cells grow or die, regardless of the type of matrix protein or antibody to integrin used to mediate adhesion. Local geometric control of cell growth and viability may therefore represent a fundamental mechanism for developmental regulation within the tissue microenvironment.

...read moreread less

4,641 citations

"Nano-topography sensing by osteocla..." refers background in this paper

...…a widespread cellular phenomenon, whereby cells collect information on the substrate on which they grow, integrate it, and develop a response (Bershadsky et al., 2006a; Chen et al., 1997; Diener et al., 2005; Discher et al., 2005; Engler et al., 2006; Geiger et al., 2009; Vogel and Sheetz, 2006)....
[...]
...…respond to chemical and physical properties of the underlying matrix, such as rigidity, mechanical activity, ligand density and dimensionality (Bershadsky et al., 2006a; Chen et al., 1997; Diener et al., 2005; Discher et al., 2005; Engler et al., 2006; Geiger et al., 2009; Vogel and Sheetz, 2006)....
[...]
...…cellular processes, including adhesion, migration, ECM remodeling, cell proliferation, gene expression and cell viability (Bershadsky et al., 2006a; Chen et al., 1997; Diener et al., 2005; Discher et al., 2005; Engler et al., 2006; Geiger et al., 2009; Kunzler et al., 2007; Lo et al., 2000; Roach…...
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Journal Article•DOI•

Cell Movement Is Guided by the Rigidity of the Substrate

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Chun Min Lo¹, Hong Bei Wang¹, Micah Dembo², Yu-li Wang¹•Institutions (2)

University of Massachusetts Medical School¹, Boston University²

01 Jul 2000-Biophysical Journal

TL;DR: It is discovered that changes in tissue rigidity and strain could play an important controlling role in a number of normal and pathological processes involving cell locomotion, including morphogenesis, the immune response, and wound healing.

...read moreread less

3,189 citations

"Nano-topography sensing by osteocla..." refers background in this paper

...…cell proliferation, gene expression and cell viability (Bershadsky et al., 2006a; Chen et al., 1997; Diener et al., 2005; Discher et al., 2005; Engler et al., 2006; Geiger et al., 2009; Kunzler et al., 2007; Lo et al., 2000; Roach et al., 2007; Saltel et al., 2004; Vogel and Sheetz, 2006)....
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Journal Article•DOI•

Taking Cell-Matrix Adhesions to the Third Dimension

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Edna Cukierman¹, Roumen Pankov¹, Daron R. Stevens¹, Kenneth M. Yamada¹•Institutions (1)

National Institutes of Health¹

23 Nov 2001-Science

TL;DR: These distinctive in vivo 3D-matrix adhesions differ in structure, localization, and function from classically described in vitro adhesion, and as such they may be more biologically relevant to living organisms.

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Abstract: Adhesions between fibroblastic cells and extracellular matrix have been studied extensively in vitro, but little is known about their in vivo counterparts. Here, we characterized the composition and function of adhesions in three-dimensional (3D) matrices derived from tissues or cell culture. "3D-matrix adhesions" differ from focal and fibrillar adhesions characterized on 2D substrates in their content of alpha5beta1 and alphavbeta3 integrins, paxillin, other cytoskeletal components, and tyrosine phosphorylation of focal adhesion kinase (FAK). Relative to 2D substrates, 3D-matrix interactions also display enhanced cell biological activities and narrowed integrin usage. These distinctive in vivo 3D-matrix adhesions differ in structure, localization, and function from classically described in vitro adhesions, and as such they may be more biologically relevant to living organisms.

...read moreread less

3,000 citations

"Nano-topography sensing by osteocla..." refers background in this paper

...Many cell types react to changes in the threedimensional texture of the substrate at the nanometer- and micrometer scales, by altering their adhesion, motility and orientation (Cukierman et al., 2001; Curtis and Wilkinson, 1997; Geiger, 2001; Vogel and Sheetz, 2006)....
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...The interplay between topography, force and adhesion dynamics might also affect other, mechanosensitive adhesions such as focal adhesions, possibly accounting for changes in their stability, signaling activity and dynamics, when plated on a rough threedimensional matrix (Cukierman et al., 2001)....
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