1
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Hoffmann M, Snyder NL, Hartmann L. Polymers Inspired by Heparin and Heparan Sulfate for Viral Targeting. Macromolecules 2022; 55:7957-7973. [PMID: 36186574 PMCID: PMC9520969 DOI: 10.1021/acs.macromol.2c00675] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 08/12/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Miriam Hoffmann
- Department of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Nicole L. Snyder
- Department of Chemistry, Davidson College, Davidson, North Carolina 28035, United States
| | - Laura Hartmann
- Department of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
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2
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Pereira C, Baumann JS, Humbot V, Falentin-Daudré C. Biological properties of direct grafting by ultraviolet irradiation of vinyl benzyl phosphonic acid onto titanium surfaces. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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3
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Lam M, Migonney V, Falentin-Daudre C. Review of silicone surface modification techniques and coatings for antibacterial/antimicrobial applications to improve breast implant surfaces. Acta Biomater 2021; 121:68-88. [PMID: 33212233 DOI: 10.1016/j.actbio.2020.11.020] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/12/2020] [Accepted: 11/12/2020] [Indexed: 12/19/2022]
Abstract
Silicone implants are widely used in the medical field for plastic or reconstructive surgeries for the purpose of soft tissue issues. However, as with any implanted object, healthcare-associated infections are not completely avoidable. The material suffers from a lack of biocompatibility and is often subject to bacterial/microbial infections characterized by biofilm growth. Numerous strategies have been developed to either prevent, reduce, or fight bacterial adhesion by providing an antibacterial property. The present review summarizes the diverse approaches to deal with bacterial infections on silicone surfaces along with the different methods to activate/oxidize the surface before any surface modifications. It includes antibacterial coatings with antibiotics or nanoparticles, covalent attachment of active bacterial molecules like peptides or polymers. Regarding silicone surfaces, the activation step is essential to render the surface reactive for any further modifications using energy sources (plasma, UV, ozone) or chemicals (acid solutions, sol-gel strategies, chemical vapor deposition). Meanwhile, corresponding work on breast silicone prosthesis is discussed. The latter is currently in the line of sight for causing severe capsular contractures. Specifically, to that end, besides chemical modifications, the antibacterial effect can also be achieved by physical surface modifications by adjusting the surface roughness and topography for instance.
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4
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Pisani S, Dorati R, Genta I, Chiesa E, Modena T, Conti B. High Efficiency Vibrational Technology (HEVT) for Cell Encapsulation in Polymeric Microcapsules. Pharmaceutics 2020; 12:pharmaceutics12050469. [PMID: 32455714 PMCID: PMC7284989 DOI: 10.3390/pharmaceutics12050469] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/15/2020] [Accepted: 05/16/2020] [Indexed: 11/16/2022] Open
Abstract
Poly(methyl-methacrylate) (PMMA) is a biocompatible and non-biodegradable polymer widely used as biomedical material. PMMA microcapsules with suitable dimension and porosity range are proposed to encapsulate live cells useful for tissue regeneration purposes. The aim of this work was to evaluate the feasibility of producing cell-loaded PMMA microcapsules through "high efficiency vibrational technology" (HEVT). Preliminary studies were conducted to set up the process parameters for PMMA microcapsules production and human dermal fibroblast, used as cell model, were encapsulated in shell/core microcapsules. Microcapsules morphometric analysis through optical microscope and scanning electron microscopy highlighted that uniform microcapsules of 1.2 mm with circular surface pores were obtained by HEVT. Best process conditions used were as follows: frequency of 200 Hz, voltage of 750 V, flow rate of core solution of 10 mL/min, and flow rate of shell solution of 0.5 bar. Microcapsule membrane allowed permeation of molecules with low and medium molecular weight up to 5900 Da and prevented diffusion of high molecular weight molecules (11,000 Da). The yield of the process was about 50% and cell encapsulation efficiency was 27% on total amount. The cell survived and growth up to 72 h incubation in simulated physiologic medium was observed.
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Affiliation(s)
- Silvia Pisani
- Immunology and Transplantation Laboratory, Pediatric Hematology Oncology Unit, Department of Maternal and Children’s Health, Fondazione IRCCS Policlinico S. Matteo, 27100 Pavia, Italy;
| | - Rossella Dorati
- Department of Drug Science, University of Pavia, V.le Taramelli 12, 27100 Pavia, Italy; (I.G.); (E.C.); (T.M.); (B.C.)
- Correspondence:
| | - Ida Genta
- Department of Drug Science, University of Pavia, V.le Taramelli 12, 27100 Pavia, Italy; (I.G.); (E.C.); (T.M.); (B.C.)
| | - Enrica Chiesa
- Department of Drug Science, University of Pavia, V.le Taramelli 12, 27100 Pavia, Italy; (I.G.); (E.C.); (T.M.); (B.C.)
| | - Tiziana Modena
- Department of Drug Science, University of Pavia, V.le Taramelli 12, 27100 Pavia, Italy; (I.G.); (E.C.); (T.M.); (B.C.)
| | - Bice Conti
- Department of Drug Science, University of Pavia, V.le Taramelli 12, 27100 Pavia, Italy; (I.G.); (E.C.); (T.M.); (B.C.)
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5
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Amokrane G, Humblot V, Jubeli E, Yagoubi N, Ramtani S, Migonney V, Falentin-Daudré C. Electrospun Poly(ε-caprolactone) Fiber Scaffolds Functionalized by the Covalent Grafting of a Bioactive Polymer: Surface Characterization and Influence on in Vitro Biological Response. ACS OMEGA 2019; 4:17194-17208. [PMID: 31656893 PMCID: PMC6811844 DOI: 10.1021/acsomega.9b01647] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 07/19/2019] [Indexed: 05/10/2023]
Abstract
The purpose of this study is to present the poly(caprolactone) (PCL) functionalization by the covalent grafting of poly(sodium styrene sulfonate) on electrospun scaffolds using the "grafting from" technique and evaluate the effect of the coating and surface wettability on the biological response. The "grafting from" technique required energy (thermal or UV) to induce the decomposition of the PCL (hydro)peroxides and generate radicals able to initiate the polymerization of NaSS. In addition, UV irradiation was used to initiate the radical polymerization of NaSS directly from the surface (UV direct "grafting from"). The interest of these two techniques is their easiness, the reduction of the number of process steps, and its applicability to the industry. The selected parameters allow controlling the grafting rate (i.e., degree of functionalization). The aim of the study was to compare two covalent grafting in terms of surface functionalization and hydrophilicity and their effect on the in vitro biological responses of fibroblasts. The achieved results showed the influence of the sulfonate functional groups on the cell response. In addition, outcomes highlighted that the UV direct "grafting from" method allows to moderate the amount of sulfonate groups and the surface hydrophilicity presents a considerable interest for covalently immobilizing bioactive polymers onto electrospun scaffolds designed for tissue engineering applications using efficient post-electrospinning chemical modification.
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Affiliation(s)
- Gana Amokrane
- Université
Paris 13 Sorbonne Paris Cité, Laboratoire CSPBAT, équipe
LBPS, CNRS (UMR 7244), Institut Galilée, 93430 Villetaneuse, France
| | - Vincent Humblot
- Sorbonne Université, Caboratoire
de Réactivité de Surface, UMR CNRS 7197, 4 place Jussieu, 75252 Paris Cedex 05, France
| | - Emile Jubeli
- Laboratoire Matériaux et Santé EA 401,
UFR de Pharmacie, Université Paris-Sud, 92290 Châtenay-Malabry, France
| | - Najet Yagoubi
- Laboratoire Matériaux et Santé EA 401,
UFR de Pharmacie, Université Paris-Sud, 92290 Châtenay-Malabry, France
| | - Salah Ramtani
- Université
Paris 13 Sorbonne Paris Cité, Laboratoire CSPBAT, équipe
LBPS, CNRS (UMR 7244), Institut Galilée, 93430 Villetaneuse, France
| | - Véronique Migonney
- Université
Paris 13 Sorbonne Paris Cité, Laboratoire CSPBAT, équipe
LBPS, CNRS (UMR 7244), Institut Galilée, 93430 Villetaneuse, France
| | - Céline Falentin-Daudré
- Université
Paris 13 Sorbonne Paris Cité, Laboratoire CSPBAT, équipe
LBPS, CNRS (UMR 7244), Institut Galilée, 93430 Villetaneuse, France
- E-mail:
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6
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Analysis of early cellular responses of anterior cruciate ligament fibroblasts seeded on different molecular weight polycaprolactone films functionalized by a bioactive poly(sodium styrene sulfonate) polymer. Biointerphases 2019; 14:041004. [PMID: 31405286 DOI: 10.1116/1.5102150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
With the growing number of anterior cruciate ligament (ACL) ruptures and the increased interest for regenerative medicine procedures, many studies are now concentrated on developing bioactive and biodegradable synthetic ligaments. For this application, the choice of raw materials with appropriate physicochemical characteristics and long-term degradation features is essential. Polycaprolactone (PCL) has the advantage of slow degradation that depends on its molecular weight. This study evaluates two PCL materials: a technical grade (PC60: 60 kDa) versus a medical grade (PC12: 80 kDa), both before and after functionalization with poly(sodium styrene sulfonate) (pNaSS). After determining the grafting process had little to no effect on the PCL physicochemical properties, sheep ACL fibroblast responses were investigated. The PC12 films induced a significantly lower expression of the tumor necrosis factor alpha inflammatory gene compared to the PC60 films. Both film types induced an overproduction of fibroblast growth factor-2 and transforming growth factor beta compared to the controls on day 5 and demonstrated collagen gene expression profiles similar to the controls on day 7. Upon protein adsorption, pNaSS grafting caused a rapid cell adhesion in the first 30 min and an increased adhesion strength (1.5-fold higher). Moreover, after 7 days, an increase in cell density and actin network development were noted on the grafted films.
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7
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Amokrane G, Falentin-Daudré C, Ramtani S, Migonney V. A Simple Method to Functionalize PCL Surface by Grafting Bioactive Polymers Using UV Irradiation. Ing Rech Biomed 2018. [DOI: 10.1016/j.irbm.2018.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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8
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Chouirfa H, Evans MDM, Bean P, Saleh-Mghir A, Crémieux AC, Castner DG, Falentin-Daudré C, Migonney V. Grafting of Bioactive Polymers with Various Architectures: A Versatile Tool for Preparing Antibacterial Infection and Biocompatible Surfaces. ACS APPLIED MATERIALS & INTERFACES 2018; 10:1480-1491. [PMID: 29266919 PMCID: PMC5800312 DOI: 10.1021/acsami.7b14283] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The aim of this Research Article is to present three different techniques of poly(sodium styrene sulfonate) (polyNaSS) covalent grafting onto titanium (Ti) surfaces and study the influence of their architecture on biological response. Two of them are "grafting from" techniques requiring an activation step either by thermal or UV irradiation. The third method is a "grafting to" technique involving an anchorage molecule onto which polyNaSS synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization is clicked. The advantage of the "grafting to" technique when compared to the "grafting from" technique is the ability to control the architecture and length of the grafted polymers on the Ti surface and their influence on the biological responses. This investigation compares the effect of the three different grafting processes on the in vitro biological responses of bacteria and osteoblasts. Overall outcomes of this investigation confirmed the significance of the sulfonate functional groups on the biological responses, regardless of the grafting method. In addition, results showed that the architecture and distribution of grafted polyNaSS on Ti surfaces alter the intensity of the bacteria response mediated by fibronectin.
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Affiliation(s)
- Hamza Chouirfa
- LBPS/CSPBAT, UMR CNRS 7244, Institut Galilée, Université Paris 13, Sorbonne Paris Cité, 99 avenue JB Clément, 93340 Villetaneuse, France
| | - Margaret D. M. Evans
- CSIRO Biomedical Materials Manufacturing Program, 11 Julius Avenue, North Ryde, Sydney, NSW 2113, Australia
| | - Penny Bean
- CSIRO Biomedical Materials Manufacturing Program, 11 Julius Avenue, North Ryde, Sydney, NSW 2113, Australia
| | - Azzam Saleh-Mghir
- Département de Médecine Aigüe Spécialisée, Hôpital Universitaire Raymond-Poincaré, Assistance Publique - Hôpitaux de Paris, Garches, and UMR 1173, Faculté de Médecine Paris-Île-de-France Ouest, Université Versailles-Saint-Quentin, Versailles, France
| | - Anne Claude Crémieux
- Département de Médecine Aigüe Spécialisée, Hôpital Universitaire Raymond-Poincaré, Assistance Publique - Hôpitaux de Paris, Garches, and UMR 1173, Faculté de Médecine Paris-Île-de-France Ouest, Université Versailles-Saint-Quentin, Versailles, France
| | - David G. Castner
- National ESCA and Surface Analysis Center for Biomedical Problems, Departments of Bioengineering and Chemical Engineering, University of Washington, Seattle, Washington 98195-1653
| | - Céline Falentin-Daudré
- LBPS/CSPBAT, UMR CNRS 7244, Institut Galilée, Université Paris 13, Sorbonne Paris Cité, 99 avenue JB Clément, 93340 Villetaneuse, France
| | - Véronique Migonney
- LBPS/CSPBAT, UMR CNRS 7244, Institut Galilée, Université Paris 13, Sorbonne Paris Cité, 99 avenue JB Clément, 93340 Villetaneuse, France
- Corresponding author. , LBPS/CSPBAT, UMR CNRS 7244, Institut Galilée, Université Paris 13 Sorbonne Paris Cité, 99 avenue JB Clément 93340-Villetaneuse, France
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9
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Highly crystalline sphere and rod-shaped TiO 2 nanoparticles: A facile route to bio-polymer grafting. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.flm.2017.12.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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10
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Van De Walle E, Van Nieuwenhove I, De Vos W, Declercq H, Dubruel P, Van Vlierberghe S. Cell response of flexible PMMA-derivatives: supremacy of surface chemistry over substrate stiffness. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:183. [PMID: 29027051 DOI: 10.1007/s10856-017-5994-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 09/21/2017] [Indexed: 06/07/2023]
Abstract
The present work reports on the development of a range of poly(methyl methacrylate)/poly(ethylene glycol) (PMMAPEG)-based materials, characterized by different elasticity moduli in order to study the influence of the substrate's mechanical properties on the response of human umbilical vein endothelial cells (HUVECs). To render the selected materials cell-interactive, a polydopamine (PDA)/gelatin type B (Gel B) coating was applied. Prior to the in vitro assay, the success of the PDA and Gel B immobilization onto the materials was confirmed using X-ray photoelectron spectroscopy (XPS) as reflected by the nitrogen percentages measured for the materials after PDA and Gel B deposition. Tensile tests showed that materials with E-moduli ranging from 37 to 1542 MPa could be obtained by varying the ratio between PMMA and PEG as well as the PEG molecular weight and its functionality (i.e. mono-methacrylate vs. di-methacrylate). The results after 1 day of cell contact suggested a preferred HUVECs cell growth onto more rigid materials. After 1 week, the material with the lowest E-modulus of 37 MPa showed lower cell densities compared to the other materials. No clear correlation could be observed between the number of focal adhesion points and the substrate stiffness. Although minor differences were found, these were not statistically significant. This last conclusion again highlights the universal character of the PDA/Gel B modification. The present work could thus be valuable for the development of a range of cell substrates requiring different mechanical properties in line with the envisaged application while the cell response should ideally remain unaffected.
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Affiliation(s)
- Elke Van De Walle
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-Bis, 9000, Ghent, Belgium
| | - Ine Van Nieuwenhove
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-Bis, 9000, Ghent, Belgium
| | - Winnok De Vos
- Department of Chemistry, University of Antwerp, Universiteitsplein 1, BE-2610, Wilrijk-Antwerp, Belgium
- Department of Molecular Biotechnology, Ghent University, Coupure links 653, 9000, Ghent, Belgium
| | - Heidi Declercq
- Tissue Engineering Group, Department of Basic Medical Sciences, Ghent University, De Pintelaan 185 6B3, Ghent, B-9000, Belgium
| | - Peter Dubruel
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-Bis, 9000, Ghent, Belgium.
| | - Sandra Van Vlierberghe
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-Bis, 9000, Ghent, Belgium.
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11
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Grafting of architecture controlled poly(styrene sodium sulfonate) onto titanium surfaces using bio-adhesive molecules: Surface characterization and biological properties. Biointerphases 2017; 12:02C418. [PMID: 28614950 DOI: 10.1116/1.4985608] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
This contribution reports on grafting of bioactive polymers such as poly(sodium styrene sulfonate) (polyNaSS) onto titanium (Ti) surfaces. This grafting process uses a modified dopamine as an anchor molecule to link polyNaSS to the Ti surface. The grafting process combines reversible addition-fragmentation chain transfer polymerization, postpolymerization modification, and thiol-ene chemistry. The first step in the process is to synthetize architecture controlled polyNaSS with a thiol end group. The second step is the adhesion of the dopamine acrylamide (DA) anchor onto the Ti surfaces. The last step is grafting polyNaSS to the DA-modified Ti surfaces. The modified dopamine anchor group with its bioadhesive properties is essential to link bioactive polymers to the Ti surface. The polymers are characterized by conventional methods (nuclear magnetic resonance, size exclusion chromatography, and attenuated total reflection-Fourier-transformed infrared), and the grafting is characterized by x-ray photoelectron spectroscopy, time-of-flight secondary ion mass spectrometry, and quartz crystal microbalance with dissipation monitoring. To illustrate the biocompatibility of the grafted Ti-DA-polyNaSS surfaces, their interactions with proteins (albumin and fibronectin) and cells are investigated. Both albumin and fibronectin are readily adsorbed onto Ti-DA-polyNaSS surfaces. The biocompatibility of modified Ti-DA-polyNaSS and control ungrafted Ti surfaces is tested using human bone cells (Saos-2) in cell culture for cell adhesion, proliferation, differentiation, and mineralization. This study presents a new, simple way to graft bioactive polymers onto Ti surfaces using a catechol intermediary with the aim of demonstrating the biocompatibility of these size controlled polyNaSS grafted surfaces.
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12
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Zhang CX, Falentin-Daudre C, Migonney V. Titanium alloy surface coatings using poly(sodium styrene sulfonate) and poly(acrylic acid). Biomed Mater Eng 2017; 27:657-668. [DOI: 10.3233/bme-161616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Cong Xiao Zhang
- Department of Stomatology, The First Hospital of JiLin University, 71 XinMin Street, Changchun, JiLin Province, China
| | - Celine Falentin-Daudre
- LBPS, CSPBAT, UMR CNRS 7244, Université Paris 13, 99 Avenue JB Clément, Villetaneuse, France
| | - Veronique Migonney
- LBPS, CSPBAT, UMR CNRS 7244, Université Paris 13, 99 Avenue JB Clément, Villetaneuse, France
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13
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Felgueiras HP, Decambron A, Manassero M, Tulasne L, Evans MDM, Viateau V, Migonney V. Bone tissue response induced by bioactive polymer functionalized Ti6Al4V surfaces: In vitro and in vivo study. J Colloid Interface Sci 2016; 491:44-54. [PMID: 28012912 DOI: 10.1016/j.jcis.2016.12.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/13/2016] [Accepted: 12/14/2016] [Indexed: 11/18/2022]
Abstract
Ti6Al4V is commonly used for orthopedic applications. This study was designed to test the potentially added benefit of Ti6Al4V functionalized with a bioactive polymer poly(sodium styrene sulfonate) both in vitro and in vivo. Cell-based assays with MC3T3-E1 osteoblast-like cells were used to measure the cell adhesion strength, cell spreading, focal contact formation, cell differentiation and the mineralization of extracellular matrix on grafted and ungrafted Ti6Al4V discs in combination with FBS and collagen type I. Bone morphogenetic protein-2 (BMP-2) was also included in the cell differentiation assay. Results showed that the grafted surface combined with collagen I gave superior levels in every parameter tested with cell-based assays and was almost equivalent to BMP-2 for cell differentiation. In vivo testing was conducted in rabbits (n=42) with cylinders of grafted and ungrafted Ti6Al4V implanted in defects made to the femoral and lateral condyles and animals that were maintained to 1, 3 and 12months. Hydroxyapatite coated Ti6Al4V cylinders were included as a clinical reference control. Osseointegration was assessed post-mortem using histomorphometric analysis conducted on resin sections of explanted undecalcified bone. Two histomorphometric parameters, that of bone-to-implant contact and the bone area, were analyzed by a trained observer blinded to sample identity. Results showed osseointegration on grafted Ti6Al4V was marginally better than both ungrafted and hydroxyapatite coated Ti6Al4V. Overall, the study found that the grafted Ti6Al4V significantly promoted all aspects of osteogenesis tested in vitro and, although in vivo outcomes were less compelling, histomorphometry showed osseointegration of grafted Ti6Al4V implants was equivalent or better than controls.
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Affiliation(s)
- Helena P Felgueiras
- Laboratory of Biomaterials and Polymers of Specialty, LBPS-CSPBAT CNRS UMR 7244, Université Paris 13, Sorbonne Paris Cité, 93430 Villetaneuse, France.
| | - Adeline Decambron
- Laboratoire de Bioingénierie et Bioimagerie Ostéo-articulaires (B2OA), UMR 7052, Université Paris Diderot, 75010 Paris, France; École Nationale Vétérinaire d'Alfort, Service de Chirurgie, Université Paris Est, 94700 Maisons-Alfort, France
| | - Mathieu Manassero
- Laboratoire de Bioingénierie et Bioimagerie Ostéo-articulaires (B2OA), UMR 7052, Université Paris Diderot, 75010 Paris, France; École Nationale Vétérinaire d'Alfort, Service de Chirurgie, Université Paris Est, 94700 Maisons-Alfort, France
| | - Louise Tulasne
- École Nationale Vétérinaire d'Alfort, Service de Chirurgie, Université Paris Est, 94700 Maisons-Alfort, France
| | - Margaret D M Evans
- CSIRO Biomedical Materials Program, 11 Julius Avenue, North Ride, Sydney, NSW 2113, Australia
| | - Véronique Viateau
- Laboratoire de Bioingénierie et Bioimagerie Ostéo-articulaires (B2OA), UMR 7052, Université Paris Diderot, 75010 Paris, France; École Nationale Vétérinaire d'Alfort, Service de Chirurgie, Université Paris Est, 94700 Maisons-Alfort, France
| | - Véronique Migonney
- Laboratory of Biomaterials and Polymers of Specialty, LBPS-CSPBAT CNRS UMR 7244, Université Paris 13, Sorbonne Paris Cité, 93430 Villetaneuse, France
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14
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Paluck S, Nguyen TH, Maynard HD. Heparin-Mimicking Polymers: Synthesis and Biological Applications. Biomacromolecules 2016; 17:3417-3440. [PMID: 27739666 PMCID: PMC5111123 DOI: 10.1021/acs.biomac.6b01147] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 09/26/2016] [Indexed: 12/13/2022]
Abstract
Heparin is a naturally occurring, highly sulfated polysaccharide that plays a critical role in a range of different biological processes. Therapeutically, it is mostly commonly used as an injectable solution as an anticoagulant for a variety of indications, although it has also been employed in other forms such as coatings on various biomedical devices. Due to the diverse functions of this polysaccharide in the body, including anticoagulation, tissue regeneration, anti-inflammation, and protein stabilization, and drawbacks of its use, analogous heparin-mimicking materials are also widely studied for therapeutic applications. This review focuses on one type of these materials, namely, synthetic heparin-mimicking polymers. Utilization of these polymers provides significant benefits compared to heparin, including enhancing therapeutic efficacy and reducing side effects as a result of fine-tuning heparin-binding motifs and other molecular characteristics. The major types of the various polymers are summarized, as well as their applications. Because development of a broader range of heparin-mimicking materials would further expand the impact of these polymers in the treatment of various diseases, future directions are also discussed.
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Affiliation(s)
- Samantha
J. Paluck
- Department of Chemistry and
Biochemistry and the California NanoSystems Institute, University of California−Los Angeles, 607 Charles E. Young Dr East, Los Angeles, California 90095, United States
| | - Thi H. Nguyen
- Department of Chemistry and
Biochemistry and the California NanoSystems Institute, University of California−Los Angeles, 607 Charles E. Young Dr East, Los Angeles, California 90095, United States
| | - Heather D. Maynard
- Department of Chemistry and
Biochemistry and the California NanoSystems Institute, University of California−Los Angeles, 607 Charles E. Young Dr East, Los Angeles, California 90095, United States
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15
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Felgueiras H, Migonney V. Cell Spreading and Morphology Variations as a Result of Protein Adsorption and Bioactive Coating on Ti6Al4V Surfaces. Ing Rech Biomed 2016. [DOI: 10.1016/j.irbm.2016.03.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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16
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Chouirfa H, Migonney V, Falentin-Daudré C. Grafting bioactive polymers onto titanium implants by UV irradiation. RSC Adv 2016. [DOI: 10.1039/c5ra24497h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new method to graft bioactive polymers by UV irradiation in a record time.
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Affiliation(s)
- H. Chouirfa
- LBPS/CSPBAT
- UMR CNRS 7244
- Institut Galilée
- Université Paris 13 Sorbonne Paris Cité
- 93340-Villetaneuse
| | - V. Migonney
- LBPS/CSPBAT
- UMR CNRS 7244
- Institut Galilée
- Université Paris 13 Sorbonne Paris Cité
- 93340-Villetaneuse
| | - C. Falentin-Daudré
- LBPS/CSPBAT
- UMR CNRS 7244
- Institut Galilée
- Université Paris 13 Sorbonne Paris Cité
- 93340-Villetaneuse
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17
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Felgueiras HP, Evans MD, Migonney V. Contribution of fibronectin and vitronectin to the adhesion and morphology of MC3T3-E1 osteoblastic cells to poly(NaSS) grafted Ti6Al4V. Acta Biomater 2015; 28:225-233. [PMID: 26415777 DOI: 10.1016/j.actbio.2015.09.030] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 08/27/2015] [Accepted: 09/25/2015] [Indexed: 10/23/2022]
Abstract
This study is focused on understanding the underlying mechanisms involved in the improved in vitro and in vivo responses of osteoblasts on poly(sodium styrene sulfonate) (poly(NaSS)) functionalized Ti6Al4V surfaces. We probed the contribution of cell-adhesive glycoproteins fibronectin (Fn) and vitronectin (Vn) in the initial adhesion of MC3T3-E1 osteoblastic cells to poly(NaSS) functionalized and control Ti6Al4V surfaces. Firstly, culture media containing serum depleted of Fn and Vn (DD) were used to establish the contribution of Fn and Vn in the adhesion and spreading of cells on poly(NaSS) grafted and control surfaces. Compared to ungrafted surfaces, poly(NaSS) grafted surfaces enhanced the levels of cell adhesion, cell spreading and the formation of intracellular actin cytoskeleton and focal contacts in serum treatments where Fn or Vn were present (FBS, DD+Fn, DD+Vn). Cell responses to Fn were more significant than to Vn. Secondly, blocking Fn and Vn integrin receptors using antibodies to α5β1 (Fn) and αvβ1 (Vn) showed that adhesion of cells to poly(NaSS) grafted surfaces principally involved the Fn integrin receptor α5β1. Thirdly, blocking of the heparin and cell-binding regions of Fn molecule (RGD, C-HB, N-HB) showed that grafting with poly(NaSS) altered the conformation of Fn. Together these outcomes explained why the presence of sulfonate (SO3(-)) groups grafted on the Ti6Al4V surface enhanced the early cell adhesion and spreading processes which determine clinical success for applications that require osseointegration. STATEMENT OF SIGNIFICANCE This study is devoted to the basic analysis of the mechanism at the origin of the improved in vitro and in vivo osteoblast cell responses exhibited by poly(sodium styrene sulfonate) (poly(NaSS)) functionalized Ti6Al4V surfaces. The aim was to probe the contribution of cell adhesive glycoproteins fibronectin and vitronectin in the initial adhesion of MC3T3-E1 osteoblastic cells to poly(NaSS) functionalized Ti6Al4V surfaces. The outcomes of this research explained why the presence of SO3(-) (sulfonate) groups grafted on the Ti6Al4V surface enhanced the early cell adhesion and spreading processes which determine clinical success for applications that require osseointegration. This work is a step further in the research of poly(NaSS), a very promising bioactive polymer with potential to the orthopedic and dental fields.
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18
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Felgueiras HP, Aissa IB, Evans MDM, Migonney V. Contributions of adhesive proteins to the cellular and bacterial response to surfaces treated with bioactive polymers: case of poly(sodium styrene sulfonate) grafted titanium surfaces. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:261. [PMID: 26449451 DOI: 10.1007/s10856-015-5596-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 10/01/2015] [Indexed: 05/25/2023]
Abstract
The research developed on functionalized model or prosthetic surfaces with bioactive polymers has raised the possibility to modulate and/or control the biological in vitro and in vivo responses to synthetic biomaterials. The mechanisms underlying the bioactivity exhibited by sulfonated groups on surfaces involves both selective adsorption and conformational changes of adsorbed proteins. Indeed, surfaces functionalized by grafting poly(sodium styrene sulfonate) [poly(NaSS)] modulate the cellular and bacterial response by inducing specific interactions with fibronectin (Fn). Once implanted, a biomaterial surface is exposed to a milieu of many proteins that compete for the surface which dictates the subsequent biological response. Once understood, this can be controlled by dictating exposure of active binding sites. In this in vitro study, we report the influence of binary mixtures of proteins [albumin (BSA), Fn and collagen type I (Col I)] adsorbed on poly(NaSS) grafted Ti6Al4V on the adhesion and differentiation of MC3T3-E1 osteoblast-like cells and the adhesion and proliferation of Staphylococcus aureus (S. aureus). Outcomes showed that poly(NaSS) stimulated cell spreading, attachment strength, differentiation and mineralization, whatever the nature of protein provided at the interface compared with ungrafted Ti6Al4V (control). While in competition, Fn and Col I were capable of prevailing over BSA. Fn played an important role in the early interactions of the cells with the surface, while Col I was responsible for increased alkaline phosphatase, calcium and phosphate productions associated with differentiation. Poly(NaSS) grafted surfaces decreased the adhesion of S. aureus and the presence of Fn on these chemically altered surfaces increased bacterial resistance ≈70% compared to the ungrafted Ti6Al4V. Overall, our study showed that poly(NaSS) grafted Ti6Al4V selectively adsorbed proteins (particularly Fn) promoting the adhesion and differentiation of osteoblast-like cells while reducing bacterial adhesion to create a bioactive surface with potential for orthopaedic applications.
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Affiliation(s)
- Helena P Felgueiras
- Laboratoire de "Chimie, Structures et Propriétés de Biomatériaux et d'Agents Thérapeutiques" (CSPBAT) - UMR CNRS 7244, Institut Galilée, Université Paris 13, Sorbonne Paris Cité, 99 avenue JB Clément, 93430, Villetaneuse, France
| | - Ines Ben Aissa
- Laboratoire de "Chimie, Structures et Propriétés de Biomatériaux et d'Agents Thérapeutiques" (CSPBAT) - UMR CNRS 7244, Institut Galilée, Université Paris 13, Sorbonne Paris Cité, 99 avenue JB Clément, 93430, Villetaneuse, France
| | - Margaret D M Evans
- CSIRO Biomedical Materials Program, 11 Julius Avenue, North Ride, Sydney, NSW, 2113, Australia
| | - Véronique Migonney
- Laboratoire de "Chimie, Structures et Propriétés de Biomatériaux et d'Agents Thérapeutiques" (CSPBAT) - UMR CNRS 7244, Institut Galilée, Université Paris 13, Sorbonne Paris Cité, 99 avenue JB Clément, 93430, Villetaneuse, France.
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19
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Role of protein environment and bioactive polymer grafting in the S. epidermidis response to titanium alloy for biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 45:176-83. [DOI: 10.1016/j.msec.2014.08.054] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 07/15/2014] [Accepted: 08/29/2014] [Indexed: 11/22/2022]
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20
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Falentin-Daudre C. Functionalization of Biomaterials and Applications. Biomaterials 2014. [DOI: 10.1002/9781119043553.ch6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Migonney V. Bioactive Polymers and Surfaces: A Solution for Implant Devices. Biomaterials 2014. [DOI: 10.1002/9781119043553.ch5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Felgueiras H, Migonney V. Sulfonate groups grafted on Ti6Al4V favor MC3T3-E1 cell performance in serum free medium conditions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 39:196-202. [DOI: 10.1016/j.msec.2014.03.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 01/30/2014] [Accepted: 03/01/2014] [Indexed: 01/22/2023]
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23
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Djaker N, Brustlein S, Rohman G, Huot S, de la Chapelle ML, Migonney V. Characterization of a synthetic bioactive polymer by nonlinear optical microscopy. BIOMEDICAL OPTICS EXPRESS 2013; 5:149-57. [PMID: 24466483 PMCID: PMC3891327 DOI: 10.1364/boe.5.000149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 11/08/2013] [Accepted: 11/14/2013] [Indexed: 05/11/2023]
Abstract
Tissue Engineering is a new emerging field that offers many possibilities to produce three-dimensional and functional tissues like ligaments or scaffolds. The biocompatibility of these materials is crucial in tissue engineering, since they should be integrated in situ and should induce a good cell adhesion and proliferation. One of the most promising materials used for tissue engineering are polyesters such as Poly-ε-caprolactone (PCL), which is used in this work. In our case, the bio-integration is reached by grafting a bioactive polymer (pNaSS) on a PCL surface. Using nonlinear microscopy, PCL structure is visualized by SHG and proteins and cells by two-photon excitation autofluorescence generation. A comparative study between grafted and nongrafted polymer films is provided. We demonstrate that the polymer grafting improves the protein adsorption by a factor of 75% and increase the cell spreading onto the polymer surface. Since the spreading is directly related to cell adhesion and proliferation, we demonstrate that the pNaSS grafting promotes PCL biocompatibility.
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Affiliation(s)
- N. Djaker
- Université Paris 13, Sorbonne Paris Cité, Laboratoire CSPBAT, CNRS (UMR 7244), 74 rue Marcel Cachin, 93017, Bobigny,
France
| | - S. Brustlein
- Institut Fresnel, MOSAIC, CNRS, Aix-Marseille Université, Ecole Centrale Marseille, Domaine Universitaire St Jérôme,
France
| | - G. Rohman
- Université Paris 13, Sorbonne Paris Cité, Laboratoire CSPBAT, CNRS (UMR 7244), 99 avenue JB Clément, 93430, Villetaneuse,
France
| | - S. Huot
- Université Paris 13, Sorbonne Paris Cité, Laboratoire CSPBAT, CNRS (UMR 7244), 99 avenue JB Clément, 93430, Villetaneuse,
France
| | - M. Lamy de la Chapelle
- Université Paris 13, Sorbonne Paris Cité, Laboratoire CSPBAT, CNRS (UMR 7244), 74 rue Marcel Cachin, 93017, Bobigny,
France
| | - V. Migonney
- Université Paris 13, Sorbonne Paris Cité, Laboratoire CSPBAT, CNRS (UMR 7244), 99 avenue JB Clément, 93430, Villetaneuse,
France
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24
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Alcheikh A, Pavon-Djavid G, Helary G, Petite H, Migonney V, Anagnostou F. PolyNaSS grafting on titanium surfaces enhances osteoblast differentiation and inhibits Staphylococcus aureus adhesion. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:1745-1754. [PMID: 23625318 DOI: 10.1007/s10856-013-4932-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Accepted: 04/15/2013] [Indexed: 06/02/2023]
Abstract
Titanium surface modifications to simultaneously prevent bacterial adhesion but promote bone-cell functions could be highly beneficial for improving implant osseointegration. In the present in vitro study, the effect of sulfonate groups on titanium surfaces was investigated with respect to both S. aureus adhesion and osteoblast functions pertinent to new bone formation. Commercial pure titanium (cpTi) squares were oxydized (Tiox), grafted with poly(sodium styrene sulfonate) groups (Tigraft) by covalent bonding using radical polymerization, and were characterized by infrared spectroscopy (HATR-FTIR) and colorimetry. Bacterial adhesion study showed that Tigraft exhibited high inhibition of S. aureus adhesion S at levels >90 %, when compared to cpTi (P < 0.05). In contrast osteoblasts adhesion was similar on all three titanium surfaces. While the kinetics of cell proliferation were similar on the three titanium surfaces, Alkaline phosphatase-specific activity of osteoblasts cultured on Tigraft surfaces was twofold higher than that observed on either on Tiox or cpTi surfaces (P < 0.01). More importantly, the amount and the distribution of calcium-containing nodules was different. The total area covered by calcium-containing nodules was 2.2-fold higher on the Tigraft as compared to either Tiox or cpTi surfaces (P < 0.01). These results provide evidence that poly(sodium styrene sulfonate) groups grafting on cpTi simultaneously inhibits bacteria adhesion but promote osteoblast function pertinent to new bone formation. Such modified titanium surfaces offer a promising strategy for preventing biofilm-related infections and enhancing osteointegration of implants in orthopaedic and dental applications.
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Affiliation(s)
- A Alcheikh
- Laboratoire de Bio ingénierie et Biomécanique Ostéoarticulaires, UMR CNRS 7052, 10, Avenue de Verdun, 75010, Paris, France
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25
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Oughlis S, Lessim S, Changotade S, Poirier F, Bollotte F, Peltzer J, Felgueiras H, Migonney V, Lataillade JJ, Lutomski D. The osteogenic differentiation improvement of human mesenchymal stem cells on titanium grafted with polyNaSS bioactive polymer. J Biomed Mater Res A 2012; 101:582-9. [PMID: 22961843 DOI: 10.1002/jbm.a.34336] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 05/25/2012] [Accepted: 06/21/2012] [Indexed: 12/27/2022]
Abstract
Osseointegration of metallic implants used in orthopedic surgery requires that osteoprogenitor cells attach and adhere to the surface, then proliferate, differentiate into osteoblasts, and finally produce mineralized matrix. Because the ability of progenitor cells to attach to a scaffold surface during early stages is important in the development of new tissue structures, we developed in our laboratory, a strategy involving grafting of implants with a polymer of sodium styrene sulfonate (polyNaSS) used as a scaffold which enables human mesenchymal stem cells (hMSCs) interactions. In the present study, we investigated the cellular response of hMSCs to polyNaSS surfaces of titanium (Ti). In particular, cell proliferation, cell viability, cell differentiation, and cell spreading were evaluated. Results showed that cell proliferation and cell viability did not differ with any statistical significance between modified and unmodified Ti surfaces. Interestingly, culture of MSCs on polyNaSS surfaces resulted in a significant increase of cell spreading and cell differentiation compared with the other tested surfaces. These results suggest that titanium surface grafted with polyNaSS is a suitable scaffold for bone tissue engineering.
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Affiliation(s)
- S Oughlis
- Université Paris 13, Sorbonne Paris Cité, UMR CNRS 7244, CSPBAT-LBPS, UFR SMBH, Bobigny, France
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26
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Inhibition of angiogenesis in vitro with soluble copolymers monitored with a quartz crystal resonator. Ing Rech Biomed 2010. [DOI: 10.1016/j.irbm.2010.10.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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Bhattacharyya D, Xu H, Deshmukh RR, Timmons RB, Nguyen KT. Surface chemistry and polymer film thickness effects on endothelial cell adhesion and proliferation. J Biomed Mater Res A 2010; 94:640-8. [PMID: 20213813 PMCID: PMC2892191 DOI: 10.1002/jbm.a.32713] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Adherence and growth rates of human aortic endothelial cells (HAEC) on plasma polymerized poly(vinylacetic acid) films were measured as functions of the surface density of --COOH groups and plasma deposited film thickness. Pulsed plasma polymerization was employed to produce films containing 3.6 to 9% --COOH groups, expressed as a percent of total carbon content. Endothelial cells exhibited increased cell adherence and proliferation with increasing --COOH surface densities. Additionally, and unexpectedly, cell growth was also dependent on the film thicknesses, which ranged from 25 to 200 nm. The results indicate that optimization of the functional group surface density and film thickness could produce significant enhancements in initial adhesion and subsequent growth of the HAEC cells.
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Affiliation(s)
- Dhiman Bhattacharyya
- Department of Chemistry and Biochemistry, University of Texas at Arlington, PO Box 19065, Arlington, Texas 76019-0065, USA
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28
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Fujii Y, Nagamura T, Tanaka K. Relaxation Behavior of Poly(methyl methacrylate) at a Water Interface. J Phys Chem B 2010; 114:3457-60. [DOI: 10.1021/jp909373g] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yoshihisa Fujii
- Department of Applied Chemistry, Kyushu University, Fukuoka 819-0395, Japan
| | - Toshihiko Nagamura
- Department of Applied Chemistry, Kyushu University, Fukuoka 819-0395, Japan
| | - Keiji Tanaka
- Department of Applied Chemistry, Kyushu University, Fukuoka 819-0395, Japan
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29
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Hélary G, Noirclère F, Mayingi J, Bacroix B, Migonney V. A bioactive polymer grafted on titanium oxide layer obtained by electrochemical oxidation. Improvement of cell response. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:655-63. [PMID: 19842019 DOI: 10.1007/s10856-009-3892-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2009] [Accepted: 10/02/2009] [Indexed: 05/25/2023]
Abstract
The anchorage failure of titanium implants in human body is mainly due to biointegration problem. The proposed solution is to graft a bioactive polymer at the surface of the implant in order to improve and control the interactions with the living system. In this paper, we describe the grafting of poly sodium styrene sulfonate on titanium surface by using a silanization reaction. The key point is to increase the TiOH content at the surface of the implant which can react with methoxy silane groups of 3-methacryloxypropyltrimethoxysilane (MPS). Two procedures were used: chemical oxidation and electrochemical oxidation. The last oxidation procedure was carried out in two different electrolytes: oxalic acid and methanol. These different oxidation methods allow controlling the roughness and the depth of the oxide layer. The methacryloyl group of MPS grafted at the titanium surface by silanization reaction is copolymerized with sodium styrene sulfonate using a thermal initiator able to produce radicals by heating. Colorimetric method, ATR-FTIR, XPS techniques and contact angle measurements were applied to characterize the surfaces. MG63 osteoblastic cell response was studied on polished, oxidized and grafted titanium samples. Cell adhesion, Alkaline Phosphatase activity and calcium nodules formation were significantly enhanced on grafted titanium surfaces compared to un-modified surfaces.
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Affiliation(s)
- Gérard Hélary
- Laboratoire des Biomatériaux et Polymères de Spécialité, CSPBAT FRE CNRS 3043, Université Paris 13, Avenue Jean Baptiste Clément, 93430, Villetaneuse, France.
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30
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Kerner S, Migonney V, Pavon-Djavid G, Helary G, Sedel L, Anagnostou F. Bone tissue response to titanium implant surfaces modified with carboxylate and sulfonate groups. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:707-715. [PMID: 19902334 DOI: 10.1007/s10856-009-3928-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2009] [Accepted: 10/26/2009] [Indexed: 05/28/2023]
Abstract
The present study assessed in vivo new bone formation around titanium alloy implants chemically grafted with macromolecules bearing ionic sulfonate and/or carboxylate groups. Unmodified and grafted Ti-6Al-4V exhibiting either 100% carboxylate, or 100% sulfonate, or both carboxylate and sulfonate groups in the percent of 50/50 and 80/20 were bilaterally implanted into rabbit femoral condyle. Neither toxicity nor inflammation were observed for all implants tested. After 4 weeks, peri-implant new bone formation varied as a function of the chemical composition of the titanium surfaces. The percent bone-implant contact (BIC) was the lowest (13.4 +/- 6.3%) for the implants modified with grafted carboxylate only. The value of BIC on the implants with 20% sulfonate (24.6 +/- 5.2%) was significantly (P < 0.05) lower than that observed on 100% sulfonate (38.2 +/- 13.2%) surfaces. After both 4 and 12 weeks post-implantation, the BIC value for implants with more than 50% sulfonate was similar to that obtained with the unmodified Ti-6Al-4V. The grafted titanium alloy exhibiting either 100% sulfonate or carboxylate and sulfonate (50% each) groups promoted bone formation. Such materials are of clinical interest because, they do not promote bacteria adhesion but, they support new bone formation, a condition which can lead to osseointegration of bone implants while preventing peri-implant infections.
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Affiliation(s)
- S Kerner
- Laboratoire de Bioingénierie et Biomécanique Ostéoarticulaire, U.M.R.-C.N.R.S. 7052, 10, avenue de Verdun, 75010, Paris, France
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31
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Zhou J, Manassero M, Migonney V, Viateau V. Évaluation clinique et biologique d’un ligament synthétique bioactif chez la brebis. Ing Rech Biomed 2009. [DOI: 10.1016/j.irbm.2009.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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32
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Silk-functionalized titanium surfaces for enhancing osteoblast functions and reducing bacterial adhesion. Biomaterials 2008; 29:4751-9. [PMID: 18829101 DOI: 10.1016/j.biomaterials.2008.08.043] [Citation(s) in RCA: 133] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2008] [Accepted: 08/28/2008] [Indexed: 12/14/2022]
Abstract
It would be ideal to have implants which can simultaneously inhibit bacterial adhesion and promote osteoblast functions. In this work, titanium surfaces were modified with poly(methacrylic acid) (P(MAA)) followed by immobilization of silk sericin. Firstly a trichlorosilane coupling agent, which is an atom transfer radical polymerization (ATRP) initiator, was immobilized on the oxidized titanium surface to facilitate the surface-initiated ATRP of methacrylic acid sodium salt (MAAS). The pendant carboxyl end groups of the grafted and partially protonated MAA chains were subsequently coupled with silk sericin via carbodiimide chemistry. The functionalized Ti surfaces were characterized by X-ray photoelectron spectroscopy, and assayed for osteoblast cell functions and bacterial adhesion. The covalently immobilized MAA brushes significantly reduce the adhesion of the two bacterial strains (Staphylococcus aureus and Staphylococcus epidermidis) tested. The silk sericin-immobilized surfaces, at the same time, promote osteoblast cells' adhesion, proliferation, and alkaline phosphatase activity. Thus, the P(MAA) and silk sericin functionalized Ti surfaces have potential applications combating biomaterial-centered infection and promoting osseointegration.
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33
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Kim G, Ree M, Kim H, Kim IJ, Kim JR, Lee JI. Biological affinity and biodegradability of poly(propylene carbonate) prepared from copolymerization of carbon dioxide with propylene oxide. Macromol Res 2008. [DOI: 10.1007/bf03218547] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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34
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Mayingi J, Hélary G, Noirclere F, Bacroix B, Migonney V. Synthèse et greffage de polymères bioactifs sur des surfaces en titane pour favoriser l’ostéointégration. Ing Rech Biomed 2008. [DOI: 10.1016/j.rbmret.2007.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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35
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Tanaka K, Fujii Y, Atarashi H, Akabori KI, Hino M, Nagamura T. Nonsolvents cause swelling at the interface with poly(methyl methacrylate) films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:296-301. [PMID: 18052221 DOI: 10.1021/la702132t] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Density profiles of a perdeuterated poly(methyl methacrylate) (dPMMA) film spin-coated on a substrate in water, hexane, and methanol, which are "nonsolvents" for dPMMA, were examined along the direction normal to the interface by specular neutron reflectivity (NR). The interfaces of dPMMA with the liquids were diffuse in comparison with the pristine interface with air; the interfacial width with water was thicker than that with hexane. Interestingly, in water, the dPMMA film was composed of a swollen layer and the interior region, which also contained water, in addition to the diffused layer. The interface of dPMMA with hexane was sharper than that with water. Although there were slight indications of a swollen layer for the dPMMA in hexane, the solvent molecules did not penetrate significantly into the film. On the other hand, in methanol, the whole region of the dPMMA film was strikingly swollen. To conserve mass, the swelling of the film by the nonsolvents is accompanied by an increase in the film thickness. The change in the film thickness estimated by NR was in excellent accord with the results of direct observations using atomic force microscopy (AFM). The modulus of dPMMA in the vicinity of the interfaces with liquids was also examined on the basis of force-distance curves measured by AFM. The modulus decreased closer to the outermost region of the film. The extent to which the modulus decreased in the interfacial region was consistent with the amount of liquid sorbed into the film.
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Affiliation(s)
- Keiji Tanaka
- Department of Applied Chemistry, Kyushu University, Fukuoka, Japan.
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36
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Pavon-Djavid G, Gamble LJ, Ciobanu M, Gueguen V, Castner DG, Migonney V. Bioactive Poly(ethylene terephthalate) Fibers and Fabrics: Grafting, Chemical Characterization, and Biological Assessment. Biomacromolecules 2007; 8:3317-25. [DOI: 10.1021/bm070344i] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- G. Pavon-Djavid
- Laboratoire de Biomatériaux et Polymères de Spécialité (LBPS/B2OA−UMR 7052) Institut Galilée, Université Paris 13, 99 Avenue Jean-Baptiste Clément, 93430 Villetaneuse, France, and National Electron Spectroscopy for Chemical Analysis and Surface Analysis Center for Biomedical Problems, Departments of Bioengineering and Chemical Engineering, Box 351750, University of Washington, Seattle, Washington 98195-1750
| | - L. J. Gamble
- Laboratoire de Biomatériaux et Polymères de Spécialité (LBPS/B2OA−UMR 7052) Institut Galilée, Université Paris 13, 99 Avenue Jean-Baptiste Clément, 93430 Villetaneuse, France, and National Electron Spectroscopy for Chemical Analysis and Surface Analysis Center for Biomedical Problems, Departments of Bioengineering and Chemical Engineering, Box 351750, University of Washington, Seattle, Washington 98195-1750
| | - M. Ciobanu
- Laboratoire de Biomatériaux et Polymères de Spécialité (LBPS/B2OA−UMR 7052) Institut Galilée, Université Paris 13, 99 Avenue Jean-Baptiste Clément, 93430 Villetaneuse, France, and National Electron Spectroscopy for Chemical Analysis and Surface Analysis Center for Biomedical Problems, Departments of Bioengineering and Chemical Engineering, Box 351750, University of Washington, Seattle, Washington 98195-1750
| | - V. Gueguen
- Laboratoire de Biomatériaux et Polymères de Spécialité (LBPS/B2OA−UMR 7052) Institut Galilée, Université Paris 13, 99 Avenue Jean-Baptiste Clément, 93430 Villetaneuse, France, and National Electron Spectroscopy for Chemical Analysis and Surface Analysis Center for Biomedical Problems, Departments of Bioengineering and Chemical Engineering, Box 351750, University of Washington, Seattle, Washington 98195-1750
| | - D. G. Castner
- Laboratoire de Biomatériaux et Polymères de Spécialité (LBPS/B2OA−UMR 7052) Institut Galilée, Université Paris 13, 99 Avenue Jean-Baptiste Clément, 93430 Villetaneuse, France, and National Electron Spectroscopy for Chemical Analysis and Surface Analysis Center for Biomedical Problems, Departments of Bioengineering and Chemical Engineering, Box 351750, University of Washington, Seattle, Washington 98195-1750
| | - V. Migonney
- Laboratoire de Biomatériaux et Polymères de Spécialité (LBPS/B2OA−UMR 7052) Institut Galilée, Université Paris 13, 99 Avenue Jean-Baptiste Clément, 93430 Villetaneuse, France, and National Electron Spectroscopy for Chemical Analysis and Surface Analysis Center for Biomedical Problems, Departments of Bioengineering and Chemical Engineering, Box 351750, University of Washington, Seattle, Washington 98195-1750
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Ciobanu M, Siove A, Gueguen V, Gamble LJ, Castner DG, Migonney V. Radical graft polymerization of styrene sulfonate on poly(ethylene terephthalate) films for ACL applications: "grafting from" and chemical characterization. Biomacromolecules 2006; 7:755-60. [PMID: 16529411 DOI: 10.1021/bm050694+] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The purpose of this study is to develop a reliable method of functionalizing poly(ethylene terephthalate) with bioactive polymers to produce a "biointegrable" artificial anterior cruciate ligament. Radical graft polymerization of the sodium salt of styrene sulfonate (NaSS) onto poly(ethylene terephthalate) (PET) films was performed using the "grafting from" technique. Prior to the grafting, the surfaces of poly(ethylene terephthalate) films were activated by ozonation to generate peroxide and hydroperoxide reactive species on the PET film surfaces. The radical polymerization of NaSS was initiated by thermal decomposition of the hydroperoxides. The grafted PET surfaces were characterized by a toluidin blue colorimetric method, X-ray photoelectron spectroscopy, contact angle measurements, and atomic force microscopy. The influence of ozonation time, monomer concentration, and temperature on NaSS grafting ratios was examined. A total of 30 min of ozonation followed by grafting from a 15% NaSS solution at 70 degrees C for 90 min or more resulted in attachment of poly(NaSS) chains to the PET film surfaces.
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Affiliation(s)
- M Ciobanu
- Laboratoire de Biomatériaux et Polymères de Spécialité, LBPS/B2OA - UMR 7052, Institut Galilée, Université Paris 13, 93430 Villetaneuse, France
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38
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Le Guillou-Buffello D, Hélary G, Gindre M, Pavon-Djavid G, Laugier P, Migonney V. Monitoring cell adhesion processes on bioactive polymers with the quartz crystal resonator technique. Biomaterials 2005; 26:4197-205. [PMID: 15664647 DOI: 10.1016/j.biomaterials.2004.10.024] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2004] [Accepted: 10/19/2004] [Indexed: 11/19/2022]
Abstract
The Thickness Shear Mode (TSM) quartz crystal resonator has been extensively used as sensitive sensor in various electrochemical and biological applications. This technique based on the propagation of an ultrasonic shear wave generated by a sinusoidal electric field through a piezoelectric quartz resonator, provides a non-destructive and powerful means to probe changes at solid-solid or solid-liquid interfaces. In this study, TSM was used to characterize cell-polymer interactions developing during the cell adhesion process. TSM sensing was used to monitor the inhibiting properties of bioactive polymers towards fibroblast McCoy adhesion processes. For this purpose, thin films of various bioactive polymers exhibiting either carboxylate or/and sulfonate functional groups were deposited onto the TSM. Measurements of the time variation of the electrical motional resistance in the vicinity of the mechanical sensor resonant frequency were performed as the quartz crystal resonator was either coated with the continuous polymer phase or polymer plus cell suspensions. Cell adhesion processes on these surfaces was investigated by cell counting and the quartz resonator-based technique. Inhibition of fibroblast McCoy adhesion onto thin polymer films of various chemical compositions was analyzed and discussed in the perspective of a possible application of these bioactive polymers to fabricate intraocular lenses able to prevent secondary cataract phenomena.
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Affiliation(s)
- Delphine Le Guillou-Buffello
- Laboratoire d'Imagerie Paramétrique, UMR 7623 CNRS, Université Pierre et Marie Curie, 15 rue de l'école de Médecine, 75006 Paris, France
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Pavon-Djavid G, Hélary G, Migonney V. « Les biomatériaux inhibiteurs de l'adhérence et de la prolifération bactérienne : un enjeu pour la prévention des infections sur matériel prothétique ». ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.rbmret.2005.04.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Evans MDM, Pavon-Djavid G, Hélary G, Legeais JM, Migonney V. Vitronectin is significant in the adhesion of lens epithelial cells to PMMA polymers. J Biomed Mater Res A 2004; 69:469-76. [PMID: 15127394 DOI: 10.1002/jbm.a.30017] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A major complication of intraocular lens surgery is diminished visual acuity caused by the regrowth of lens epithelial cells (secondary cataract). Polymethylmethacrylate (PMMA) is a commonly used intraocular lens material. This study addresses the mechanisms underlying the initial adhesion of lens epithelial cells to PMMA and a functionalized PMMA-based terpolymer known to inhibit cell proliferation. Rabbit lens epithelial cells were cultured on the test polymer surfaces in medium containing serum depleted of either fibronectin or vitronectin (or both) to identify the role of these proteins in the initial process of cell adhesion. Adherent cells were quantitated after 60 min, and the actin cytoskeleton and focal contact formation were compared in each serum treatment on both polymers. Vitronectin was significantly more effective for initial cell attachment to both polymers than fibronectin. Normal cell spreading on PMMA required vitronectin and was independent of fibronectin, whereas cell spreading on the terpolymer was abnormal and required the presence of fibronectin and vitronectin together. Together, these results help to explain the inhibition of cell proliferation previously shown on the functionalized PMMA. This work contributes to the design of a polymer for use in intraocular lenses that inhibits proliferation of the target cells.
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Affiliation(s)
- Margaret D M Evans
- CSIRO Molecular Science, 11 Julius Avenue, North Ryde, Sydney, NSW, Australia 2113.
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41
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Estimation de l'inhibition de l'adhésion cellulaire sur des films de polymère par la technique du résonateur à quartz. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.rbmret.2004.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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42
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Latz C, Pavon-Djavid G, Hélary G, Evans MDM, Migonney V. Alternative intracellular signaling mechanism involved in the inhibitory biological response of functionalized PMMA-based polymers. Biomacromolecules 2003; 4:766-71. [PMID: 12741796 DOI: 10.1021/bm025764g] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A PMMA-based polymer previously shown to inhibit cell proliferation was compared to untreated PMMA. Conformation of adsorbed proteins, cell adhesion, cytoskeleton formation, and integrin activation were examined. Fibronectin adsorbed in a different conformation on the PMMA-based polymer exposing a different balance of the heparin-binding domains. Fibroblasts attached in equal numbers to both surfaces over a 4-h period, but the integrins involved in the adhesion process elicited different intracellular signaling pathways. Cells attached to PMMA showed activation of FAK and MAP as they spread using an assembled actin cytoskeleton. Cells attached to the polymer showed early and strong MAP activity that resulted in nonassembly of the actin cytoskeleton and sub-optimal cell spreading. We conclude that the chemistry of the polymer surface dictated a different conformation of the adsorbed proteins that resulted in alternative cell signaling and diminished cell spreading. This accounted for the biological inhibition previously reported on the PMMA-based polymer.
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Affiliation(s)
- Catharina Latz
- Laboratoire de Biomatériaux et Polymères de Spécialité, Institut Galilée, Université Paris 13, 99 Avenue Jean Baptiste Clément, 93430 Villetaneuse, France
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Berlot S, Aissaoui Z, Pavon-Djavid G, Belleney J, Jozefowicz M, Hélary G, Migonney V. Biomimetic poly(methyl methacrylate)-based terpolymers: modulation of bacterial adhesion effect. Biomacromolecules 2002; 3:63-8. [PMID: 11866557 DOI: 10.1021/bm015580m] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Adherence of Staphylococcus aureus, responsible for major foreign body infections, was assessed onto functionalized poly(methyl methacrylate)-based terpolymers bearing sulfonate and carboxylate groups and onto poly(methyl methacrylate) as control. These terpolymers, have been synthesized by radical copolymerization of methyl methacrylate, methacrylic acid, and sodium styrene sulfonate by varying the ratio R = [COO(-)]/[COO(-) + SO(3)(-)] from 0 to 1 and keeping ionic monomer content between 7 and 18%. Adsorption of fibronectin onto poly(methyl methacrylate) was shown to dramatically promote bacterial adherence, whereas a strong inhibition of bacteria adherence was observed onto functionalized terpolymers containing both carboxylate and sulfonate groups. When terpolymers were predominantly functionalized by carboxylate groups, bacteria adherence was favored and reached values close to those obtained for poly(methyl methacrylate). These results have been related to the distribution of the anionic groups along the macromolecular chains, creating active sites responsible for specific interactions with fibronectin and inducing modifications of its conformation. The conformation of the adsorbed adhesive protein was then suggested to have an influence on the availability of its interaction sites to bacteria adhesins and therefore on modulation of bacteria adherence. Inhibition of Staphylococcus aureus adherence by functionalized poly(methyl methacrylate)-based terpolymers is of great interest in the field of biomedical implants and especially in the case of ophthalmic applications.
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Affiliation(s)
- Sandrine Berlot
- Laboratoire de Recherches sur les Macromolécules, FRE 2314, Université Paris 13, 99 Avenue J-B Clément, 93430, Villetaneuse, France
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