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Fibronectin-Enriched Biomaterials, Biofunctionalization, and Proactivity: A Review. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app112412111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Modern innovation in reconstructive medicine implies the proposition of material-based strategies suitable for tissue repair and regeneration. The development of such systems necessitates the design of advanced materials and the control of their interactions with their surrounding cellular and molecular microenvironments. Biomaterials must actively engage cellular matter to direct and modulate biological responses at implant sites and beyond. Indeed, it is essential that a true dialogue exists between the implanted device and the cells. Biomaterial engineering implies the knowledge and control of cell fate considering the globality of the adhesion process, from initial cell attachment to differentiation. The extracellular matrix (ECM) represents a complex microenvironment able to meet these essential needs to establish a relationship between the material and the contacting cells. The ECM exhibits specific physical, chemical, and biochemical characteristics. Considering the complexity, heterogeneity, and versatility of ECM actors, fibronectin (Fn) has emerged among the ECM protagonists as the most pertinent representative key actor. The following review focuses on and synthesizes the research supporting the potential to use Fn in biomaterial functionalization to mimic the ECM and enhance cell–material interactions.
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2
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Daum R, Mrsic I, Hutterer J, Junginger A, Hinderer S, Meixner AJ, Gauglitz G, Chassé T, Schenke-Layland K. Fibronectin adsorption on oxygen plasma-treated polyurethane surfaces modulates endothelial cell response. J Mater Chem B 2021; 9:1647-1660. [DOI: 10.1039/d0tb02757j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Fibronectin coating increases implant biocompatibility by enhancing surface endothelialization via integrin-mediated binding.
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Affiliation(s)
- Ruben Daum
- NMI Natural and Medical Sciences
- Institute at the University of Tübingen
- 72770 Reutlingen
- Germany
- Department of Women's Health
| | - Ivana Mrsic
- Institute of Physical and Theoretical Chemistry
- Eberhard Karls University Tübingen
- 72076 Tübingen
- Germany
| | - Johanna Hutterer
- Institute of Physical and Theoretical Chemistry
- Eberhard Karls University Tübingen
- 72076 Tübingen
- Germany
| | - Achim Junginger
- Institute of Physical and Theoretical Chemistry
- Eberhard Karls University Tübingen
- 72076 Tübingen
- Germany
| | - Svenja Hinderer
- NMI Natural and Medical Sciences
- Institute at the University of Tübingen
- 72770 Reutlingen
- Germany
- Department of Women's Health
| | - Alfred J. Meixner
- Institute of Physical and Theoretical Chemistry
- Eberhard Karls University Tübingen
- 72076 Tübingen
- Germany
- Center for Light–Matter Interaction
| | - Günter Gauglitz
- Institute of Physical and Theoretical Chemistry
- Eberhard Karls University Tübingen
- 72076 Tübingen
- Germany
| | - Thomas Chassé
- Institute of Physical and Theoretical Chemistry
- Eberhard Karls University Tübingen
- 72076 Tübingen
- Germany
- Center for Light–Matter Interaction
| | - Katja Schenke-Layland
- NMI Natural and Medical Sciences
- Institute at the University of Tübingen
- 72770 Reutlingen
- Germany
- Department of Women's Health
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3
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Olvera D, Sathy BN, Kelly DJ. Spatial Presentation of Tissue-Specific Extracellular Matrix Components along Electrospun Scaffolds for Tissue Engineering the Bone-Ligament Interface. ACS Biomater Sci Eng 2020; 6:5145-5161. [PMID: 33455265 DOI: 10.1021/acsbiomaterials.0c00337] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The bone-ligament interface transitions from a highly organized type I collagen rich matrix to a nonmineralized fibrocartilage region and finally to a mineralized fibrocartilage region that interfaces with the bone. Therefore, engineering the bone-ligament interface requires a biomaterial substrate capable of maintaining or directing the spatially defined differentiation of multiple cell phenotypes. To date the appropriate combination of biophysical and biochemical factors that can be used to engineer such a biomaterial substrate remain unknown. Here we show that microfiber scaffolds functionalized with tissue-specific extracellular matrix (ECM) components can direct the differentiation of MSCs toward the phenotypes seen at the bone-ligament interface. Ligament-ECM (L-ECM) promoted the expression of the ligament-marker gene tenomodulin (TNMD) and higher levels of type I and III collagen expression compared to functionalization with commercially available type I collagen. Functionalization of microfiber scaffolds with cartilage-ECM (C-ECM) promoted chondrogenesis of MSCs, as evidenced by adoption of a round cell morphology and increased SRY-box 9 (SOX9) expression in the absence of exogenous growth factors. Next, we fabricated a multiphasic scaffold by controlling the spatial presentation of L-ECM and C-ECM along the length of a single electrospun microfiber construct, with the distal region of the C-ECM coated fibers additionally functionalized with an apatite layer (using simulated body fluid) to promote endochondral ossification. These ECM functionalized scaffolds promoted spatially defined differentiation of MSCs, with higher expression of TNMD observed in the region functionalized with L-ECM, and higher expression of type X collagen and osteopontin (markers of endochondral ossification) observed at the end of the scaffold functionalized with C-ECM and the apatite coating. Our results demonstrate the utility of tissue-specific ECM derived components as a cue for directing MSC differentiation when engineering complex multiphasic interfaces such as the bone-ligament enthesis.
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Affiliation(s)
- Dinorath Olvera
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland.,Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland
| | - Binulal N Sathy
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland.,Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland.,Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682041, India
| | - Daniel J Kelly
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland.,Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland.,Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin 2, Ireland.,Advanced Materials and Bioengineering Research Centre (AMBER), Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin 2, Ireland
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4
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Gao J, Chang Z, Tian R, Li P, Ahmad F, Jia X, Liang Q, Zhao X. Reversible and site-specific immobilization of β 2-adrenergic receptor by aptamer-directed method for receptor-drug interaction analysis. J Chromatogr A 2020; 1622:461091. [PMID: 32376022 DOI: 10.1016/j.chroma.2020.461091] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 03/23/2020] [Accepted: 03/29/2020] [Indexed: 10/24/2022]
Abstract
Immobilized protein makes a profound impact on the development of assays for drug discovery, diagnosis and in vivo biological interaction analysis. Traditional methods are enormously challenged by the G-protein coupled receptor ascribed to the loss of receptor functions. We introduced a β2-adrenergic receptor (β2-AR) aptamer into the immobilization of the receptor. This was achieved by mixing the receptor conjugated silica gel with cell lysates containing the receptor. We found that the aptamer-directed method makes immobilized β2-AR good stability in seven days and high specificity of ligand recognition at the subtype receptor level. Feasibility of the immobilized β2-AR in drug-receptor interaction analysis was evaluated by injection amount-dependent method, nonlinear chromatography, and peak decay analysis. Salbutamol, methoxyphenamine, ephedrine hydrochloride, clorprenaline, tulobuterol, bambuterol, propranolol and ICI 118551 bound to the receptor through one type of binding sites. The association constants presented good agreement within the three methods but exhibited clear differences from the data by radio-ligand binding assay. Regarding these results, we concluded that the aptamer-directed method will probably become an alternative for reversible and site-specific immobilization of GPCRs directly from complex matrices; the immobilized receptor is qualitative for drug-receptor interaction analysis.
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Affiliation(s)
- Juan Gao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Ministry of Life Sciences and Medicine, Northwest University, Xi'an710069, China
| | - Zhongman Chang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Ministry of Life Sciences and Medicine, Northwest University, Xi'an710069, China
| | - Rui Tian
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Ministry of Life Sciences and Medicine, Northwest University, Xi'an710069, China
| | - Ping Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Ministry of Life Sciences and Medicine, Northwest University, Xi'an710069, China
| | - Faizan Ahmad
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Ministry of Life Sciences and Medicine, Northwest University, Xi'an710069, China
| | - Xiaoni Jia
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Ministry of Life Sciences and Medicine, Northwest University, Xi'an710069, China; Department of Pharmacy, Xi'an Mental Health Center, Xi'an 710061, China
| | - Qi Liang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Ministry of Life Sciences and Medicine, Northwest University, Xi'an710069, China; College of Chemistry & Chemical Engineering, Xi'an Shiyou University, Xi'an 710065, China
| | - Xinfeng Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Ministry of Life Sciences and Medicine, Northwest University, Xi'an710069, China.
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5
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Modification of chlorosulfonated polystyrene substrates for bioanalytical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 112:110912. [DOI: 10.1016/j.msec.2020.110912] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/11/2020] [Accepted: 03/31/2020] [Indexed: 12/15/2022]
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6
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Effect of linking arm hydrophilic/hydrophobic nature, length and end-group on the conformation and the RGD accessibility of surface-immobilized fibronectin. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 107:110335. [DOI: 10.1016/j.msec.2019.110335] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 06/03/2019] [Accepted: 10/16/2019] [Indexed: 12/30/2022]
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7
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Ma W, Jin GW, Gehret PM, Chada NC, Suh WH. A Novel Cell Penetrating Peptide for the Differentiation of Human Neural Stem Cells. Biomolecules 2018; 8:biom8030048. [PMID: 29987263 PMCID: PMC6163344 DOI: 10.3390/biom8030048] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 06/22/2018] [Accepted: 06/25/2018] [Indexed: 12/27/2022] Open
Abstract
Retinoic acid (RA) is a bioactive lipid that has been shown to promote neural stem cell differentiation. However, the highly hydrophobic molecule needs to first solubilize and translocate across the cell membrane in order to exert a biological response. The cell entry of RA can be aided by cell penetrating peptides (CPPs), which are short amino acid sequences that are able to carry bioactive cargo past the cell membrane. In this work, a novel cell penetrating peptide was developed to deliver RA to human neural stem cells and, subsequently, promote neuronal differentiation. The novel CPP consists of a repeating sequence, whose number of repeats is proportional to the efficiency of cell penetration. Using fluorescence microscopy, the mode of translocation was determined to be related to an endocytic pathway. The levels of β-III tubulin (Tubb3) and microtubule associated protein 2 (MAP2) expression in neural stem cells treated with RA conjugated to the CPP were assessed by quantitative immunocytochemistry.
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Affiliation(s)
- Weili Ma
- Department of Bioengineering, College of Engineering, Temple University, Philadelphia, PA 19122, USA.
| | - Geun-Woo Jin
- Department of Bioengineering, College of Engineering, Temple University, Philadelphia, PA 19122, USA.
| | - Paul M Gehret
- Department of Bioengineering, College of Engineering, Temple University, Philadelphia, PA 19122, USA.
| | - Neil C Chada
- Department of Bioengineering, College of Engineering, Temple University, Philadelphia, PA 19122, USA.
| | - Won Hyuk Suh
- Department of Bioengineering, College of Engineering, Temple University, Philadelphia, PA 19122, USA.
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8
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Totti S, Allenby MC, Dos Santos SB, Mantalaris A, Velliou EG. A 3D bioinspired highly porous polymeric scaffolding system for in vitro simulation of pancreatic ductal adenocarcinoma. RSC Adv 2018; 8:20928-20940. [PMID: 35542351 PMCID: PMC9080900 DOI: 10.1039/c8ra02633e] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 05/20/2018] [Indexed: 12/21/2022] Open
Abstract
Pancreatic ductal adenocarcinoma is an aggressive disease with an extremely low survival rate. This is due to the (i) poor prognosis and (ii) high resistance of the disease to current treatment options. The latter is partly due to the very complex and dense tissue/tumour microenvironment of pancreatic cancer, which contributes to the disease's progression and the inhibition of apoptotic pathways. Over the last years, advances in tissue engineering and the development of three-dimensional (3D) culture systems have shed more light into cancer research by enabling a more realistic recapitulation of the niches and structure of the tumour microenvironment. Herein, for the first time, 3D porous polyurethane scaffolds were fabricated and coated with fibronectin to mimic features of the structure and extracellular matrix present in the pancreatic cancer tumour microenvironment. The developed 3D scaffold could support the proliferation of the pancreatic tumour cells, which was enhanced with the presence of fibronectin, for a month, which is a significantly prolonged in vitro culturing duration. Furthermore, in situ imaging of cellular and biomarker distribution showed the formation of dense cellular masses, the production of collagen-I by the cells and the formation of environmental stress gradients (e.g. HIF-1α) with similar heterogeneity trends to the ones reported in in vivo studies. The results obtained in this study suggest that this bioinspired porous polyurethane based scaffold has great potential for in vitro high throughput studies of pancreatic cancer including drug and treatment screening.
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Affiliation(s)
- Stella Totti
- Bioprocess and Biochemical Engineering Group (BioProChem), Department of Chemical and Process Engineering, University of Surrey Guildford GU2 7XH UK 0044-(0)-1483686577
| | - Mark C Allenby
- Biological Systems Engineering Laboratory (BSEL), Department of Chemical Engineering, Imperial College London London SW7 2AZ UK
| | - Susana Brito Dos Santos
- Biological Systems Engineering Laboratory (BSEL), Department of Chemical Engineering, Imperial College London London SW7 2AZ UK
| | - Athanasios Mantalaris
- Biological Systems Engineering Laboratory (BSEL), Department of Chemical Engineering, Imperial College London London SW7 2AZ UK
| | - Eirini G Velliou
- Bioprocess and Biochemical Engineering Group (BioProChem), Department of Chemical and Process Engineering, University of Surrey Guildford GU2 7XH UK 0044-(0)-1483686577
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9
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Ba OM, Marmey P, Anselme K, Duncan AC, Ponche A. Surface composition XPS analysis of a plasma treated polystyrene: Evolution over long storage periods. Colloids Surf B Biointerfaces 2016; 145:1-7. [DOI: 10.1016/j.colsurfb.2016.04.026] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 04/07/2016] [Accepted: 04/12/2016] [Indexed: 11/26/2022]
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10
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Luo R, Wang X, Deng J, Zhang H, Maitz MF, Yang L, Wang J, Huang N, Wang Y. Dopamine-assisted deposition of poly (ethylene imine) for efficient heparinization. Colloids Surf B Biointerfaces 2016; 144:90-98. [DOI: 10.1016/j.colsurfb.2016.03.080] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 03/26/2016] [Accepted: 03/28/2016] [Indexed: 01/23/2023]
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11
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Wronska MA, O'Connor IB, Tilbury MA, Srivastava A, Wall JG. Adding Functions to Biomaterial Surfaces through Protein Incorporation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:5485-5508. [PMID: 27164952 DOI: 10.1002/adma.201504310] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 03/16/2016] [Indexed: 06/05/2023]
Abstract
The concept of biomaterials has evolved from one of inert mechanical supports with a long-term, biologically inactive role in the body into complex matrices that exhibit selective cell binding, promote proliferation and matrix production, and may ultimately become replaced by newly generated tissues in vivo. Functionalization of material surfaces with biomolecules is critical to their ability to evade immunorecognition, interact productively with surrounding tissues and extracellular matrix, and avoid bacterial colonization. Antibody molecules and their derived fragments are commonly immobilized on materials to mediate coating with specific cell types in fields such as stent endothelialization and drug delivery. The incorporation of growth factors into biomaterials has found application in promoting and accelerating bone formation in osteogenerative and related applications. Peptides and extracellular matrix proteins can impart biomolecule- and cell-specificities to materials while antimicrobial peptides have found roles in preventing biofilm formation on devices and implants. In this progress report, we detail developments in the use of diverse proteins and peptides to modify the surfaces of hard biomaterials in vivo and in vitro. Chemical approaches to immobilizing active biomolecules are presented, as well as platform technologies for isolation or generation of natural or synthetic molecules suitable for biomaterial functionalization.
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Affiliation(s)
- Małgorzata A Wronska
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Iain B O'Connor
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Maura A Tilbury
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Akshay Srivastava
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - J Gerard Wall
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
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12
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Sun CC, Chou SF, Lai JY, Cho CH, Lee CH. Dependence of corneal keratocyte adhesion, spreading, and integrin β1 expression on deacetylated chitosan coating. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 63:222-30. [DOI: 10.1016/j.msec.2016.02.069] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Revised: 02/13/2016] [Accepted: 02/23/2016] [Indexed: 12/26/2022]
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13
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Valencia-Serna J, Chevallier P, KC RB, Laroche G, Uludağ H. Fibronectin-modified surfaces for evaluating the influence of cell adhesion on sensitivity of leukemic cells to siRNA nanoparticles. Nanomedicine (Lond) 2016; 11:1123-38. [DOI: 10.2217/nnm.16.32] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Aim: This study aimed to create fibronectin (FN)-grafted polymeric surfaces to investigate the influence of leukemic cell adhesion on siRNA treatment. Materials & methods: FN was grafted on plasma-treated PTFE surfaces using chemical crosslinkers. Adhesion and growth of chronic myeloid leukemia K562 cells on modified surfaces were investigated. The silencing effect of siRNA/lipid-polymers nanoparticles on cells grown on FN-grafted surfaces was evaluated. Results: Crosslinker-mediated immobilization showed significant FN grafting on surfaces, which provided K562 cell adhesion and growth advantage. siRNA nanoparticle silencing was similarly effective on FN-adhered and suspension-growing K562 cells. Conclusion: This study provided initial data to develop a cell-adhesive system to investigate therapeutic effects on leukemic cells. The response of chronic myeloid leukemia cells to siRNA nanoparticles was independent on cell attachment.
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Affiliation(s)
- Juliana Valencia-Serna
- Department of Biomedical Engineering, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta T6G 2V2, Canada
| | - Pascale Chevallier
- Département de génie des mines, de la métallurgie et des Matériaux & Centre de recherche du CHU de Québec, Université Laval, Québec, Québec G1L 3L5, Canada
| | - Remant Bahadur KC
- Department of Chemical & Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 2G6, Canada
| | - Gaétan Laroche
- Département de génie des mines, de la métallurgie et des Matériaux & Centre de recherche du CHU de Québec, Université Laval, Québec, Québec G1L 3L5, Canada
| | - Hasan Uludağ
- Department of Biomedical Engineering, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta T6G 2V2, Canada
- Department of Chemical & Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 2G6, Canada
- Faculty of Pharmacy & Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta T6G 2G6, Canada
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14
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Butruk-Raszeja BA, Dresler MS, Kuźmińska A, Ciach T. Endothelialization of polyurethanes: Surface silanization and immobilization of REDV peptide. Colloids Surf B Biointerfaces 2016; 144:335-343. [PMID: 27110909 DOI: 10.1016/j.colsurfb.2016.04.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 04/05/2016] [Accepted: 04/07/2016] [Indexed: 01/19/2023]
Abstract
The paper presents method for chemical immobilization of arginine-glutamic acid-aspartic acid-valine (REDV) peptide on polyurethane surface. The peptide has been covalently bonded using silanes as a spacer molecules. The aim of this work was to investigate the proposed modification process and assess its biological effectiveness, especially in contact with blood and endothelial cells. Physicochemical properties were examined in terms of wettability, atomic composition and density of introduced functional groups and peptide molecules. Experiments with blood showed that material coating reduced number of surface-adhered platelets and fibrinogen molecules. In contrast to polyurethane (PU), there were no blood components deposited on REDV-modified materials (PU-REDV); fibrinogen adsorption on PU-REDV surface has been strongly reduced compared to PU. Analysis of cell adhesion after 1, 2, 3, 4, and 5 days of culture showed a significant increase of the cell-coated area on PU-REDV compared to PU. However, an intense cell growth appeared also on the control surface modified without the addition of REDV. Thus, the positive effect of REDV peptide on the adhesion of HUVEC could not be unequivocally confirmed.
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Affiliation(s)
- Beata A Butruk-Raszeja
- Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland.
| | - Magdalena S Dresler
- Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland
| | - Aleksandra Kuźmińska
- Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland
| | - Tomasz Ciach
- Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland; CEZAMAT PW, Polna 50, 00-644 Warsaw, Poland
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15
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Ba O, Hindie M, Marmey P, Gallet O, Anselme K, Ponche A, Duncan A. Protein covalent immobilization via its scarce thiol versus abundant amine groups: Effect on orientation, cell binding domain exposure and conformational lability. Colloids Surf B Biointerfaces 2015; 134:73-80. [DOI: 10.1016/j.colsurfb.2015.06.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 06/01/2015] [Accepted: 06/03/2015] [Indexed: 01/08/2023]
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16
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Balaji A, Jaganathan SK, Vellayappan MV, John AA, Subramanian AP, SelvaKumar M, Mohandas H, M SR, Supriyanto E. Prospects of common biomolecules as coating substances for polymeric biomaterials. RSC Adv 2015. [DOI: 10.1039/c5ra12693b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The concept of using common biomolecules like proteins, carbohydrates,etc., for improving the biocompatibility seems rational and effective because of the bio-friendly surface that they present, remains closer in mimicking the innate environment.
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Affiliation(s)
- A. Balaji
- IJN-UTM Cardiovascular Engineering Centre
- Faculty of Biosciences and Medical Engineering
- Universiti Teknologi Malaysia
- Johor Bahru 81310
- Malaysia
| | - S. K. Jaganathan
- IJN-UTM Cardiovascular Engineering Centre
- Faculty of Biosciences and Medical Engineering
- Universiti Teknologi Malaysia
- Johor Bahru 81310
- Malaysia
| | - M. V. Vellayappan
- IJN-UTM Cardiovascular Engineering Centre
- Faculty of Biosciences and Medical Engineering
- Universiti Teknologi Malaysia
- Johor Bahru 81310
- Malaysia
| | - A. A. John
- IJN-UTM Cardiovascular Engineering Centre
- Faculty of Biosciences and Medical Engineering
- Universiti Teknologi Malaysia
- Johor Bahru 81310
- Malaysia
| | - A. P. Subramanian
- IJN-UTM Cardiovascular Engineering Centre
- Faculty of Biosciences and Medical Engineering
- Universiti Teknologi Malaysia
- Johor Bahru 81310
- Malaysia
| | - M. SelvaKumar
- Rubber Technology Centre
- Indian Institute of Technology
- Kharagpur-721302
- India
| | - H. Mohandas
- Department of Biomedical Engineering
- University of Texas Arlington
- USA-TX 76019
| | - Sundar Raj M
- Department of Biomedical Engineering
- Bharath University
- Chennai-600073
- India
| | - Eko Supriyanto
- IJN-UTM Cardiovascular Engineering Centre
- Faculty of Biosciences and Medical Engineering
- Universiti Teknologi Malaysia
- Johor Bahru 81310
- Malaysia
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17
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Silverman BR, Champion JA. Presentation of fibronectin fragments using affinity protein interactions for enhanced retention and function. Acta Biomater 2014; 10:4956-4960. [PMID: 25173838 DOI: 10.1016/j.actbio.2014.08.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 06/25/2014] [Accepted: 08/22/2014] [Indexed: 10/24/2022]
Abstract
We present a protein immobilization system, based on the Src Homology 3 (SH3) affinity domain, allowing for a transient interaction between a fibronectin ligand and a biomaterial surface. This strategy leads to enhanced retention of the fibronectin fragment over adsorbed fibronectin, and increased cellular proliferation and motility over either covalently immobilized or adsorbed fibronectin. The results indicate that intermediate affinity protein immobilization could provide benefits for tissue engineering beyond the traditional immobilization techniques, adsorption or covalent attachment.
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18
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Lee EA, Jung G, Im SG, Hwang NS. Extracellular matrix-immobilized nanotopographical substrates for enhanced myogenic differentiation. J Biomed Mater Res B Appl Biomater 2014; 103:1258-66. [DOI: 10.1002/jbm.b.33308] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 09/01/2014] [Accepted: 10/01/2014] [Indexed: 01/26/2023]
Affiliation(s)
- Eunjee A. Lee
- School of Chemical and Biological Engineering; Seoul National University; Seoul 151-744 Republic of Korea
| | - Giyoung Jung
- School of Chemical and Biological Engineering; Seoul National University; Seoul 151-744 Republic of Korea
| | - Sung Gap Im
- Department of Chemical and Biomolecular Engineering and KI for the NanoCentury; Korea Advanced Institute of Science and Technology; Daejeon 305-701 Republic of Korea
| | - Nathaniel S. Hwang
- School of Chemical and Biological Engineering; Seoul National University; Seoul 151-744 Republic of Korea
- The BioMAX Institute of Seoul National University; Seoul National University; Seoul Republic of Korea
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Zander NE, Dong H, Steele J, Grant JT. Metal cation cross-linked nanocellulose hydrogels as tissue engineering substrates. ACS APPLIED MATERIALS & INTERFACES 2014; 6:18502-18510. [PMID: 25295848 DOI: 10.1021/am506007z] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The use of cellulose materials for biomedical applications is attractive due to their low cost, biocompatibility, and biodegradability. Specific processing of cellulose to yield nanofibrils further improves mechanical properties and suitability as a tissue engineering substrate due to the similarity to the fibrous structure, porosity, and size-scale of the native extracellular matrix. In order to generate the substrate, nanocellulose hydrogels were fabricated from carboxylated cellulose nanofibrils via hydrogelation using metal salts. Hydrogels cross-linked with Ca(2+) and Fe(3+) were investigated as tissue culture substrates for C3H10T1/2 fibroblast cells. Control substrates as well as those with physically adsorbed and covalently attached fibronectin protein were evaluated with X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR), and enzyme linked immunosorbent assay (ELISA). Significantly more cells were attached to surfaces modified with protein, with the highest number of cells adhered to the calcium cross-linked hydrogels with covalently attached protein.
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Affiliation(s)
- Nicole E Zander
- United States Army Research Laboratory, Weapons and Materials Research Directorate, Aberdeen Proving Ground, Maryland 21005, United States
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Campos DM, Gritsch K, Salles V, Attik GN, Grosgogeat B. Surface Entrapment of Fibronectin on Electrospun PLGA Scaffolds for Periodontal Tissue Engineering. Biores Open Access 2014; 3:117-26. [PMID: 24940563 PMCID: PMC4048976 DOI: 10.1089/biores.2014.0015] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Nowadays, the challenge in the tissue engineering field consists in the development of biomaterials designed to regenerate ad integrum damaged tissues. Despite the current use of bioresorbable polyesters such as poly(l-lactide) (PLA), poly(d,l-lactide-co-glycolide) (PLGA), and poly-ɛ-caprolactone in soft tissue regeneration researches, their hydrophobic properties negatively influence the cell adhesion. Here, to overcome it, we have developed a fibronectin (FN)-functionalized electrospun PLGA scaffold for periodontal ligament regeneration. Functionalization of electrospun PLGA scaffolds was performed by alkaline hydrolysis (0.1 or 0.01 M NaOH). Then, hydrolyzed scaffolds were coated by simple deposition of an FN layer (10 μg/mL). FN coating was evidenced by X-ray photoelectron analysis. A decrease of contact angle and greater cell adhesion to hydrolyzed, FN-coated PLGA scaffolds were noticed. Suitable degradation behavior without pH variations was observed for all samples up to 28 days. All treated materials presented strong shrinkage, fiber orientation loss, and collapsed fibers. However, functionalization process using 0.01 M NaOH concentration resulted in unchanged scaffold porosity, preserved chemical composition, and similar mechanical properties compared with untreated scaffolds. The proposed simplified method to functionalize electrospun PLGA fibers is an efficient route to make polyester scaffolds more biocompatible and shows potential for tissue engineering.
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Affiliation(s)
- Doris M Campos
- Laboratoire des Multimatériaux et Interfaces CNRS UMR 5615, Université Lyon 1 , Villeurbanne, France . ; UFR d'odontologie, Université Lyon 1 , Villeurbanne, France
| | - Kerstin Gritsch
- Laboratoire des Multimatériaux et Interfaces CNRS UMR 5615, Université Lyon 1 , Villeurbanne, France . ; UFR d'odontologie, Université Lyon 1 , Villeurbanne, France . ; Centre de Soins, d'Enseignement et de Recherche Dentaires (Département de Parodontologie), Université Lyon 1 , Villeurbanne, France
| | - Vincent Salles
- Laboratoire des Multimatériaux et Interfaces CNRS UMR 5615, Université Lyon 1 , Villeurbanne, France
| | - Ghania N Attik
- Laboratoire des Multimatériaux et Interfaces CNRS UMR 5615, Université Lyon 1 , Villeurbanne, France
| | - Brigitte Grosgogeat
- Laboratoire des Multimatériaux et Interfaces CNRS UMR 5615, Université Lyon 1 , Villeurbanne, France . ; UFR d'odontologie, Université Lyon 1 , Villeurbanne, France . ; Centre de Soins, d'Enseignement et de Recherche Dentaires (Département de Santé Publique), Université Lyon 1 , Villeurbanne, France
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21
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Chemical modification and characterization of poly(ethylene terephthalate) surfaces for collagen immobilization. OPEN CHEM 2013. [DOI: 10.2478/s11532-013-0319-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AbstractThe functionalization of poly(ethylene terephthalate) (PET) surface films by reactions with multifunctional amines such as triethylenetetramine (TETA), and tetraethylenepentamine (TEPA) was investigated. For the functionalization of PET films surface we used a new way of treatment, a “sandwich model”. Physical-chemical properties of functionalized PET films were analysed. Qualitative and quantitative determination of the introduced amine groups were examined by means of Fourier Transform Infrared Attenuated Total Reflexion (FTIR — ATR), X-ray photoelectron spectroscopy (XPS), and potentiometric titration. Gained wetting properties were determined by using contact angle measurements and thoroughly analysed by acid-base approach. In addition, surface topography was investigated by atomic force microscopy (AFM). The amount of the introduced amino groups after TETA incorporation has been found to be two times higher as compared to TEPA. Wetting properties were significantly improved after aminolysis. Surface free energy was higher for PET — TETA treated film than that observed for PET — TEPA treated which is in accordance with titration results. The collagen immobilization onto PET treated films was evidenced by using AFM and subsequently by using XPS.
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Improved immobilization of biomolecules to quinone-rich polydopamine for efficient surface functionalization. Colloids Surf B Biointerfaces 2013; 106:66-73. [DOI: 10.1016/j.colsurfb.2013.01.033] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 12/30/2012] [Accepted: 01/10/2013] [Indexed: 01/13/2023]
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He T, Yang Z, Chen R, Wang J, Leng Y, Sun H, Huang N. Enhanced endothelialization guided by fibronectin functionalized plasma polymerized acrylic acid film. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.02.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Dubiel EA, Vermette P. Solution composition impacts fibronectin immobilization on carboxymethyl-dextran surfaces and INS-1 insulin secretion. Colloids Surf B Biointerfaces 2012; 95:266-73. [DOI: 10.1016/j.colsurfb.2012.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 02/20/2012] [Accepted: 03/12/2012] [Indexed: 12/19/2022]
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Weng Y, Chen J, Tu Q, Li Q, Maitz MF, Huang N. Biomimetic modification of metallic cardiovascular biomaterials: from function mimicking to endothelialization in vivo. Interface Focus 2012; 2:356-65. [PMID: 23741611 DOI: 10.1098/rsfs.2011.0126] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2011] [Accepted: 03/04/2012] [Indexed: 12/28/2022] Open
Abstract
Biosystem-surface interactions play an important role in various biological events and determine the ultimate functionality of implanted devices. Endothelialization or mimicking of endothelium on the surface of cardiovascular materials is a promising way to solve the problems of material-induced thrombosis and restenosis. Meanwhile, a multifunctional surface design is needed as antithrombotic properties should be considered in the period when the implants are not yet completely endothelialized. In this article, we summarize some successful approaches used in our laboratory for constructing multifunctional endothelium-like surfaces on metallic cardiovascular biomaterials through chemical modification of the surface or by the introduction of specific biological molecules to induce self-endothelialization in vivo. Some directions on future research in these areas are also presented.
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Affiliation(s)
- Yajun Weng
- Key Lab for Advanced Technologies of Materials , Ministry of Education , People's Republic of China
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Sun P, Lu H, Yao X, Tu X, Zheng Z, Wang X. Facile and universal immobilization of l-lysine inspired by mussels. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm16598h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Lai JY, Wang TP, Li YT, Tu IH. Synthesis, characterization and ocular biocompatibility of potential keratoprosthetic hydrogels based on photopolymerized poly(2-hydroxyethyl methacrylate)-co-poly(acrylic acid). ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c1jm14211a] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Sima F, Davidson P, Pauthe E, Sima L, Gallet O, Mihailescu I, Anselme K. Fibronectin layers by matrix-assisted pulsed laser evaporation from saline buffer-based cryogenic targets. Acta Biomater 2011; 7:3780-8. [PMID: 21704740 DOI: 10.1016/j.actbio.2011.06.016] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2011] [Revised: 06/09/2011] [Accepted: 06/10/2011] [Indexed: 11/26/2022]
Abstract
The deposition of fibronectin (FN) from saline buffer-based cryogenic targets by matrix-assisted pulsed laser evaporation (MAPLE) onto silicon substrates is reported. A uniform distribution of FN was revealed by Ponceau staining after control experiments on nitrocellulose paper. Well-organized particulates with heights from hundreds of nanometers up to more than 1 μm packed in homogeneous layers were evidenced by optical microscopy and profilometry on Si substrates. Atomic force microscopy images showed regions composed of buffer and FN aggregates forming a compact film. Comparison of infrared spectra of drop-cast and MAPLE-deposited FN confirmed the preservation of composition and showed no degradation of the protein. The protein deposition on Si was confirmed by antibody staining. Small aggregates and fluorescent fibrils were visualized by fluorescence microscopy. Superior attachment of human osteoprogenitor cells cultivated for 3 h proved the presence of stable and intact FN molecules after transfer.
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29
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Joddar B, Ito Y. Biological modifications of materials surfaces with proteins for regenerative medicine. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10984g] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Bush KA, Pins GD. Carbodiimide conjugation of fibronectin on collagen basal lamina analogs enhances cellular binding domains and epithelialization. Tissue Eng Part A 2010; 16:829-38. [PMID: 19778179 DOI: 10.1089/ten.tea.2009.0514] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
To improve the regenerative potential of biomaterials used as bioengineered scaffolds, it is necessary to strategically incorporate biologically active molecules that promote in vivo cellular processes that lead to a fully functional tissue. This work evaluates the effects of strategically binding fibronectin (FN) to collagen basal lamina analogs to enhance keratinocyte functions necessary for complete skin regeneration. We found that FN that was passively adsorbed to collagen-glycosaminoglycan basal lamina analogs enhanced epithelial thickness and keratinocyte proliferation compared with nontreated basal lamina analogs at 3 days of air/liquid (A/L) interface culture. Additionally, we evaluated the availability of FN cellular binding site domains when FN was either passively adsorbed or [1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride] conjugated to basal lamina analogs fabricated from collagen-glycosaminoglycan coprecipitate or self-assembled type I collagen. It was found that 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride conjugation of FN significantly enhanced FN binding site presentation as well as epithelial thickness. Overall, the results gained from this study will be used to improve the regenerative capacity of basal lamina analogs for bioengineered skin substitutes as well as the development of bioengineered scaffolds for other tissue engineering applications.
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Affiliation(s)
- Katie A Bush
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA 01606, USA
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Kowalczyńska HM, Kołos R, Nowak-Wyrzykowska M, Dobkowski J, Elbaum D, Szczepankiewicz A, Kamiński J. Atomic force microscopy evidence for conformational changes of fibronectin adsorbed on unmodified and sulfonated polystyrene surfaces. J Biomed Mater Res A 2010; 91:1239-51. [PMID: 19358257 DOI: 10.1002/jbm.a.32473] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The effect of polystyrene surface polarity on the conformation of adsorbed fibronectin (FN) has been studied with atomic force microscopy. We demonstrated that bare sulfonated and nonsulfonated polystyrene surfaces featured similar topographies. After the FN adsorption, direct comparison of both types of substrata revealed drastically different topographies, roughness values, and also cell-adhesive properties. This was interpreted in terms of FN conformational changes induced by the surface polarity. At high-solute FN concentrations the multilayer FN adsorption took place resulting, for the sulfonated substratum, in an increase of surface roughness, whereas for the nonsulfonated one the roughness was approximately stable. Conversely, the FN conformation characteristic for the first saturative layer tended to be conserved in the consecutive layers, as evidenced by height histograms. The height of individual FN molecules indicated, consonantly with the derived thickness of the adsorbed protein layer (the latter value being 1.4 nm and 0.6 nm, respectively, for an unmodified and sulfonated polystyrene surface), that molecules are flattened on polar surfaces and more compact on nonsulfonated ones. It was also demonstrated that the FN adsorption and conformation on polymeric substrata, and hence the resultant cell-adhesive properties, depended on the chemistry of the original surface rather than on its topography. Our results also demonstrated the ability of surface polarity to influence the protein conformation and its associated biological activity.
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Affiliation(s)
- Hanna M Kowalczyńska
- Department of Biophysics, Medical Centre for Postgraduate Education, ul Marymoncka 99, 01-813 Warszawa, Poland
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Gupta B, Grover N, Mohanty S, Jain KG, Singh H. Radiation grafting of acrylic acid/N-vinyl pyrrolidone binary mixture onto poly(ethylene terephthalate) fabric and growth of human mesenchymal stem cell. J Appl Polym Sci 2010. [DOI: 10.1002/app.30915] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Bayramoğlu G, Yakup Arıca M. Immobilization of laccase onto poly(glycidylmethacrylate) brush grafted poly(hydroxyethylmethacrylate) films: Enzymatic oxidation of phenolic compounds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2009.03.011] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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34
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Chen H, Song W, Zhou F, Wu Z, Huang H, Zhang J, Lin Q, Yang B. The effect of surface microtopography of poly(dimethylsiloxane) on protein adsorption, platelet and cell adhesion. Colloids Surf B Biointerfaces 2009; 71:275-81. [DOI: 10.1016/j.colsurfb.2009.02.018] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2008] [Revised: 02/16/2009] [Accepted: 02/19/2009] [Indexed: 11/26/2022]
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Mendonça RH, Thiré RMSM, Costa MFD, S. Filho FC. Adsorção de fibronectina a arcabouços de polihidroxibutirato aplicáveis à engenharia óssea. POLIMEROS 2009. [DOI: 10.1590/s0104-14282009000200012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Fibronectina sérica humana foi adicionada à superfície de arcabouços de polihidroxibutirato (PHB) a fim de otimizar a adesão de osteoblastos humanos (HOB). Visando a criar sítios para a imobilização de fibronectina (FN), os arcabouços foram previamente tratados por meio de reação com etilenodiamina. O tratamento modificou a morfologia e a composição química dos arcabouços, possibilitando um aumento no teor de FN adsorvido à superfície. Imagens de AFM mostraram que as moléculas de FN assumiram conformações distintas, de acordo com a superfície na qual foi imobilizada. A FN adicionada aos arcabouços não modificados possivelmente assumiu uma conformação estendida, expondo os grupamentos RGD. Com isso, houve um aumento na adesão de HOB a estes materiais. Por outro lado, a FN na superfície dos arcabouços previamente tratados possivelmente apresentou-se na forma compacta, suprimindo a adesão de HOB.
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36
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Gupta B, Grover N, Singh H. Radiation grafting of acrylic acid onto poly(ethylene terephthalate) fabric. J Appl Polym Sci 2009. [DOI: 10.1002/app.29546] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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37
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Chen H, Yuan L, Song W, Wu Z, Li D. Biocompatible polymer materials: Role of protein–surface interactions. Prog Polym Sci 2008. [DOI: 10.1016/j.progpolymsci.2008.07.006] [Citation(s) in RCA: 452] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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38
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Incubation type Si-based planar ion channel biosensor. Anal Bioanal Chem 2008; 391:2703-9. [DOI: 10.1007/s00216-008-1994-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2007] [Revised: 02/13/2008] [Accepted: 02/18/2008] [Indexed: 01/30/2023]
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