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Schneider A, Talon I, Mathieu E, Schaaf P, Becmeur F, Hemmerlé J. New insight in the biological integration of polytetrafluoroethylene from an explant used for diaphragm repair. J Biomater Appl 2016; 31:844-850. [DOI: 10.1177/0885328216676757] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Congenital diaphragmatic hernia is a severe disease requiring diaphragm replacement mostly with expanded polytetrafluoroethylene. Unfortunately, the recurrence rate is high due to prosthesis failure with significant morbidity for the child. To provide a better understanding of the integration and possible failure processes of the biomaterial implanted in humans, we conducted electron microscopical and mechanical assessments on a prosthesis explant from a child with congenital diaphragmatic hernia presenting a recurrence. Our findings show a major penetration of connective tissue into the expanded polytetrafluoroethylene on the rough side, whereas the smooth side presents few tissue colonization. This penetration is more important in the central area (area A) with large collagen bundles and layers, in comparison to the peripheral areas without prosthesis failure (area B), where few extracellular matrix is produced. The connective tissue penetrates the prosthesis in depth. In contrast, the peripheral areas with prosthesis failure (area C) show very few cells and extracellular matrix, with an oriented organization in comparison to areas A and B. Obviously, the forces applied on the implanted material modulate the cellular behavior of the newly developed tissues. Atomic force microscopic measurements of the biomaterials’ surfaces may explain some cellular behaviors according to areas with or without failure.
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Affiliation(s)
- Anne Schneider
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
- Hôpitaux Universitaires de Strasbourg, Service de Chirurgie Pédiatrique, Strasbourg, France
| | - Isabelle Talon
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
- Hôpitaux Universitaires de Strasbourg, Service de Chirurgie Pédiatrique, Strasbourg, France
| | - Eric Mathieu
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
| | - Pierre Schaaf
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
| | - François Becmeur
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
- Hôpitaux Universitaires de Strasbourg, Service de Chirurgie Pédiatrique, Strasbourg, France
| | - Joseph Hemmerlé
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
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Hadler C, Aliuos P, Brandes G, Warnecke A, Bohlmann J, Dempwolf W, Menzel H, Lenarz T, Reuter G, Wissel K. Polymer Coatings of Cochlear Implant Electrode Surface - An Option for Improving Electrode-Nerve-Interface by Blocking Fibroblast Overgrowth. PLoS One 2016; 11:e0157710. [PMID: 27391483 PMCID: PMC4938590 DOI: 10.1371/journal.pone.0157710] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 05/03/2016] [Indexed: 11/18/2022] Open
Abstract
Overgrowth of connective tissue and scar formation induced by the electrode array insertion increase the impedance and, thus, diminish the interactions between neural probes as like cochlear implants (CI) and the target tissue. Therefore, it is of great clinical interest to modify the carrier material of the electrodes to improve the electrode nerve interface for selective cell adhesion. On one side connective tissue growth needs to be reduced to avoid electrode array encapsulation, on the other side the carrier material should not compromise the interaction with neuronal cells. The present in vitro-study qualitatively and quantitatively characterises the interaction of fibroblasts, glial cells and spiral ganglion neurons (SGN) with ultrathin poly(N,N-dimethylacrylamide) (PDMAA), poly(2-ethyloxazoline) (PEtOx) and poly([2-methacryloyloxy)ethyl]trimethylammoniumchlorid) (PMTA) films immobilised onto glass surfaces using a photoreactive anchor layer. The layer thickness and hydrophilicity of the polymer films were characterised by ellipsometric and water contact angle measurement. Moreover the topography of the surfaces was investigated using atomic force microscopy (AFM). The neuronal and non-neuronal cells were dissociated from spiral ganglions of postnatal rats and cultivated for 48 h on top of the polymer coatings. Immunocytochemical staining of neuronal and intermediary filaments revealed that glial cells predominantly attached on PMTA films, but not on PDMAA and PEtOx monolayers. Hereby, strong survival rates and neurite outgrowth were only found on PMTA, whereas PDMAA and PEtOx coatings significantly reduced the SG neuron survival and neuritogenesis. As also shown by scanning electron microscopy (SEM) SGN strongly survived and retained their differentiated phenotype only on PMTA. In conclusion, survival and neuritogenesis of SGN may be associated with the extent of the glial cell growth. Since PMTA was the only of the polar polymers used in this study bearing a cationic charge, it can be assumed that this charge favours adhesion of both glial cells and SG neurons glial cells and SGN.
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Affiliation(s)
- C. Hadler
- Institute for Technical Chemistry, University of Technology Braunschweig, Braunschweig, Germany
| | - P. Aliuos
- Department of Otorhinolaryngology, Hannover Medical School, Hannover, Germany
- Cluster of Excellence “Hearing 4 All”, Hannover, Germany
| | - G. Brandes
- Institute of Cell Biology, Center of Anatomy, Hannover Medical School, Hannover, Germany
| | - A. Warnecke
- Department of Otorhinolaryngology, Hannover Medical School, Hannover, Germany
- Cluster of Excellence “Hearing 4 All”, Hannover, Germany
| | - J. Bohlmann
- Department of Otorhinolaryngology, Hannover Medical School, Hannover, Germany
| | - W. Dempwolf
- Institute for Technical Chemistry, University of Technology Braunschweig, Braunschweig, Germany
| | - H. Menzel
- Institute for Technical Chemistry, University of Technology Braunschweig, Braunschweig, Germany
| | - T. Lenarz
- Department of Otorhinolaryngology, Hannover Medical School, Hannover, Germany
- Cluster of Excellence “Hearing 4 All”, Hannover, Germany
| | - G. Reuter
- Department of Otorhinolaryngology, Hannover Medical School, Hannover, Germany
| | - K. Wissel
- Department of Otorhinolaryngology, Hannover Medical School, Hannover, Germany
- * E-mail:
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Bouet G, Marchat D, Cruel M, Malaval L, Vico L. In VitroThree-Dimensional Bone Tissue Models: From Cells to Controlled and Dynamic Environment. TISSUE ENGINEERING PART B-REVIEWS 2015; 21:133-56. [DOI: 10.1089/ten.teb.2013.0682] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Guenaelle Bouet
- Laboratoire de Biologie du Tissu Osseux, Institut National de la Santé et de la Recherche Médicale—U1059, Université de Lyon—Université Jean Monnet, Saint-Etienne, France
| | - David Marchat
- Center for Biomedical and Healthcare Engineering, Ecole Nationale Supérieure des Mines, CIS-EMSE, CNRS:UMR 5307, Saint-Etienne, France
| | - Magali Cruel
- University of Lyon, LTDS, UMR CNRS 5513, Ecole Centrale de Lyon, Ecully, France
| | - Luc Malaval
- Laboratoire de Biologie du Tissu Osseux, Institut National de la Santé et de la Recherche Médicale—U1059, Université de Lyon—Université Jean Monnet, Saint-Etienne, France
| | - Laurence Vico
- Laboratoire de Biologie du Tissu Osseux, Institut National de la Santé et de la Recherche Médicale—U1059, Université de Lyon—Université Jean Monnet, Saint-Etienne, France
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Aliuos P, Sen A, Reich U, Dempwolf W, Warnecke A, Hadler C, Lenarz T, Menzel H, Reuter G. Inhibition of fibroblast adhesion by covalently immobilized protein repellent polymer coatings studied by single cell force spectroscopy. J Biomed Mater Res A 2013; 102:117-27. [PMID: 23596088 DOI: 10.1002/jbm.a.34686] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 02/11/2013] [Accepted: 02/19/2013] [Indexed: 01/16/2023]
Abstract
Cochlea implants (CI) restore the hearing in patients with sensorineural hearing loss by electrical stimulation of the auditory nerve via an electrode array. The increase of the impedance at the electrode-tissue interface due to a postoperative connective tissue encapsulation leads to higher power consumption of the implants. Therefore, reduced adhesion and proliferation of connective tissue cells around the CI electrode array is of great clinical interest. The adhesion of cells to substrate surfaces is mediated by extracellular matrix (ECM) proteins. Protein repellent polymers (PRP) are able to inhibit unspecific protein adsorption. Thus, a reduction of cell adhesion might be achieved by coating the electrode carriers with PRPs. The aim of this study was to investigate the effects of two different PRPs, poly(dimethylacrylamide) (PDMAA) and poly(2-ethyloxazoline) (PEtOx), on the strength and the temporal dynamics of the initial adhesion of fibroblasts. Polymers were immobilized onto glass plates by a photochemical grafting onto method. Water contact angle measurements proved hydrophilic surface properties of both PDMAA and PEtOx (45 ± 1° and 44 ± 1°, respectively). The adhesion strength of NIH3T3 fibroblasts after 5, 30, and 180 s of interaction with surfaces was investigated by using single cell force spectroscopy. In comparison to glass surfaces, both polymers reduced the adhesion of fibroblasts significantly at all different interaction times and lower dynamic rates of adhesion were observed. Thus, both PDMAA and PEtOx represented antiadhesive properties and can be used as implant coatings to reduce the unspecific ECM-mediated adhesion of fibroblasts to surfaces.
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Affiliation(s)
- Pooyan Aliuos
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, Hannover, Germany
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Shih CH, Chiang TB, Wang WJ. Inhibition of integrins αv/α5-dependent functions in melanoma cells by an ECD-disintegrin acurhagin-C. Matrix Biol 2013; 32:152-9. [PMID: 23333557 DOI: 10.1016/j.matbio.2013.01.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Revised: 12/23/2012] [Accepted: 01/02/2013] [Indexed: 11/19/2022]
Abstract
Acurhagin-C, a Glu-Cys-Asp (ECD)-disintegrin from Agkistrodon acutus venom, has been reported as an endothelial apoptosis inducer, previously. Here we further evaluate its potential applications in cancer therapy. In vitro assays indicated that acurhagin-C not only may influence the cell viability at higher concentration, but also can potently and dose-dependently decrease cell proliferation in murine B16-F10 melanoma. Otherwise, it also had a dose-dependent inhibition on B16-F10 cell adhesion to extracellular matrices, collagen VI, gelatin B and fibronectin, as well as disturbed transendothelial migration of B16-F10 cell. Morphological study found that acurhagin-C dramatically affected B16-F10 cell adhesion to immobilized fibronectin, leading to the formation of multicellular aggregates with rounded shape. Detected by flow cytometry, acurhagin-C was able to induce B16-F10 cell apoptosis and alter cell cycle distribution through its interactions with integrins αv/α5, and thereafter initiation the apoptotic pathways of caspase-8/-9. Furthermore, acurhagin-C could synergistically enhance the anti-proliferative activity of methotrexate in B16-F10 cells and human melanoma SK-MEL-1 cells, without diminishing the growth of human epidermal melanocytes. Taken together, acurhagin-C proved to be a potent inhibitor of integrin-based functions in melanoma cells by activating the complex apoptotic pathways.
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Affiliation(s)
- Chun-Ho Shih
- Chang Gung University of Science and Technology, Kwei-Shan, Tao-Yuan, Taiwan
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Im DD, Kruger EA, Huang WR, Sayer G, Rudkin GH, Yamaguchi DT, Jarrahy R, Miller TA. Extracellular-Signal-Related Kinase 1/2 Is Responsible for Inhibition of Osteogenesis in Three-Dimensional Cultured MC3T3-E1 Cells. Tissue Eng Part A 2010; 16:3485-94. [DOI: 10.1089/ten.tea.2010.0222] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Daniel D. Im
- Plastic Surgery Laboratory, Veteran Affairs Greater Los Angeles Healthcare System, Los Angeles, California
- Division of Plastic Surgery, Department of Surgery, UCLA, Los Angeles, California
- Albert Einstein College of Medicine, Bronx, New York
| | - Erwin A. Kruger
- Plastic Surgery Laboratory, Veteran Affairs Greater Los Angeles Healthcare System, Los Angeles, California
- Division of Plastic Surgery, Department of Surgery, UCLA, Los Angeles, California
| | - Weibiao R. Huang
- Plastic Surgery Laboratory, Veteran Affairs Greater Los Angeles Healthcare System, Los Angeles, California
- Division of Plastic Surgery, Department of Surgery, UCLA, Los Angeles, California
| | - Gregory Sayer
- Plastic Surgery Laboratory, Veteran Affairs Greater Los Angeles Healthcare System, Los Angeles, California
- Division of Plastic Surgery, Department of Surgery, UCLA, Los Angeles, California
- David Geffen School of Medicine, UCLA, Los Angeles, California
| | - George H. Rudkin
- Plastic Surgery Laboratory, Veteran Affairs Greater Los Angeles Healthcare System, Los Angeles, California
- Division of Plastic Surgery, Department of Surgery, UCLA, Los Angeles, California
| | - Dean T. Yamaguchi
- Research Service, Veteran Affairs Greater Los Angeles Healthcare System, Los Angeles, California
| | - Reza Jarrahy
- Plastic Surgery Laboratory, Veteran Affairs Greater Los Angeles Healthcare System, Los Angeles, California
- Division of Plastic Surgery, Department of Surgery, UCLA, Los Angeles, California
| | - Timothy A. Miller
- Plastic Surgery Laboratory, Veteran Affairs Greater Los Angeles Healthcare System, Los Angeles, California
- Division of Plastic Surgery, Department of Surgery, UCLA, Los Angeles, California
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Fischer AH, Zhao C, Li QK, Gustafson KS, Eltoum IE, Tambouret R, Benstein B, Savaloja LC, Kulesza P. The cytologic criteria of malignancy. J Cell Biochem 2010; 110:795-811. [DOI: 10.1002/jcb.22585] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Heydarkhan-Hagvall S, Choi CH, Dunn J, Heydarkhan S, Schenke-Layland K, MacLellan WR, Beygui RE. Influence of Systematically Varied Nano-Scale Topography on Cell Morphology and Adhesion. ACTA ACUST UNITED AC 2009; 14:181-94. [DOI: 10.1080/15419060701755594] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Gagné L, Rivera G, Laroche G. Micropatterning with aerosols: Application for biomaterials. Biomaterials 2006; 27:5430-9. [PMID: 16824592 DOI: 10.1016/j.biomaterials.2006.06.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2006] [Accepted: 06/07/2006] [Indexed: 10/24/2022]
Abstract
Adhesion and proliferation behaviors of bovine aortic endothelial cells (BAECs) were investigated on surfaces micropatterned with peptides using a novel approach. This micropatterning technique allows modification of macroscopic three-dimensional (3D) biomaterials surfaces and exploits the semi-random properties of aerosols and the principles of liquid atomization. The possibility to control cell behaviors on polytetrafluoroethylene (PTFE) surfaces tailored with this micropatterning approach was evaluated. CGRGDS and CWQPPRARI peptides were selected for their adhesive, migration and spreading properties. Culture of BAECs on patterned PTFE showed the possibility of modulating cell behaviors. The study showed that CGRGDS spots with a diameter of 10+/-2 microm over a background of CWQPPRARI peptides was the most effective combination to enhance endothelialization of PTFE. This micropatterning technique is innovative, easily adaptable, simple, and rapid for covering large 3D areas.
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Affiliation(s)
- Louis Gagné
- Unité de biotechnologie et de bioingénierie, Centre de recherche du CHUQ, Hôpital Saint-François d'Assise, and Département de génie des mines, de la métallurgie et des matériaux, Faculté des sciences et de génie, Université Laval, Qué., Canada
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Osteoblasts attachment and adhesion: how bone cells fit fibronectin-coated surfaces. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2004. [DOI: 10.1016/j.msec.2004.08.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Abstract
Signaling and other cellular functions differ in three-dimensional compared with two-dimensional systems. Cell adhesion structures can evolve in vitro towards in-vivo-like adhesions with distinct biological activities. In this review, we examine recent advances in studies of interactions of fibroblasts with collagen gels and fibronectin-containing matrices that mimic in vivo three-dimensional microenvironments. These three-dimensional systems are illuminating mechanisms of cell-matrix interactions in living organisms.
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Affiliation(s)
- Edna Cukierman
- Craniofacial Developmental Biology and Regeneration Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892-4370, USA.
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