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Ding C, Lv H, Huang S, Hu M, Liao Y, Meng X, Gao M, Chen H, Feng X, Wu Z. The Application Progress of Nonthermal Plasma Technology in the Modification of Bone Implant Materials. ACS Biomater Sci Eng 2024. [PMID: 39227180 DOI: 10.1021/acsbiomaterials.4c00081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2024]
Abstract
With the accelerating trend of global aging, bone damage caused by orthopedic diseases, such as osteoporosis and fractures, has become a shared international event. Traffic accidents, high-altitude falls, and other incidents are increasing daily, and the demand for bone implant treatment is also growing. Although extensive research has been conducted in the past decade to develop medical implants for bone regeneration and healing of body tissues, due to their low biocompatibility, weak bone integration ability, and high postoperative infection rates, pure titanium alloys, such as Ti-6A1-4V and Ti-6A1-7Nb, although widely used in clinical practice, have poor induction of phosphate deposition and wear resistance, and Ti-Zr alloy exhibits a lack of mechanical stability and processing complexity. In contrast, the Ti-Ni alloy exhibits toxicity and low thermal conductivity. Nonthermal plasma (NTP) has aroused widespread interest in synthesizing and modifying implanted materials. More and more researchers are using plasma to modify target catalysts such as changing the dispersion of active sites, adjusting electronic properties, enhancing metal carrier interactions, and changing their morphology. NTP provides an alternative option for catalysts in the modification processes of oxidation, reduction, etching, coating, and doping, especially for materials that cannot tolerate thermodynamic or thermosensitive reactions. This review will focus on applying NTP technology in bone implant material modification and analyze the overall performance of three common types of bone implant materials, including metals, ceramics, and polymers. The challenges faced by NTP material modification are also discussed.
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Affiliation(s)
- Chengbiao Ding
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China
| | - Hao Lv
- Department of Orthopedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230602, China
| | - Suoni Huang
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China
| | - Mengxuan Hu
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Yanxinyue Liao
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China
| | - Xinyue Meng
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China
| | - Ming Gao
- Department of Emergency Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China
| | - Hemu Chen
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Xiaojun Feng
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China
| | - Zhengwei Wu
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
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2
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Alfonsi S, Karunathasan P, Mamodaly-Samdjee A, Balathandayutham K, Lefevre S, Miranda A, Gallet O, Seyer D, Hindié M. Fibronectin Conformations after Electrodeposition onto 316L Stainless Steel Substrates Enhanced Early-Stage Osteoblasts' Adhesion but Affected Their Behavior. J Funct Biomater 2023; 15:5. [PMID: 38276478 PMCID: PMC10817067 DOI: 10.3390/jfb15010005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/07/2023] [Accepted: 12/19/2023] [Indexed: 01/27/2024] Open
Abstract
The implantation of metallic orthopedic prostheses is increasingly common due to an aging population and accidents. There is a real societal need to implement new metal implants that combine durability, good mechanical properties, excellent biocompatibility, as well as affordable costs. Since the functionalization of low-cost 316L stainless steel substrates through the successive electrodeposition of a polypyrrole film (PPy) and a calcium phosphate deposit doped with silicon was previously carried out by our labs, we have also developed a bio-functional coating by electrodepositing or oxidating of fibronectin (Fn) coating. Fn is an extracellular matrix glycoprotein involved in cell adhesion and differentiation. Impacts of either electrodeposition or oxidation on the structure and functionality of Fn were first studied. Thus, electrodeposition is the technique that permits the highest deposition of fibronectin, compared to adsorption or oxidation. Furthermore, electrodeposition seems to strongly modify Fn conformation by the formation of intermingled long fibers, resulting in changes to the accessibility of the molecular probes tested (antibodies directed against Fn whole molecule and Fn cell-binding domain). Then, the effects of either electrodeposited Fn or oxidized Fn were validated by the resulting pre-osteoblast behavior. Electrodeposition reduced pre-osteoblasts' ability to remodel Fn coating on supports because of a partial modification of Fn conformation, which reduced accessibility to the cell-binding domain. Electrodeposited Fn also diminished α5 integrin secretion and clustering along the plasma membrane. However, the N-terminal extremity of Fn was not modified by electrodeposition as demonstrated by Staphylococcus aureus attachment after 3 h of culture on a specific domain localized in this region. Moreover, the number of pre-osteoblasts remains stable after 3 h culture on either adsorbed, oxidized, or electrodeposited Fn deposits. In contrast, mitochondrial activity and cell proliferation were significantly higher on adsorbed Fn compared with electrodeposited Fn after 48 h culture. Hence, electro-deposited Fn seems more favorable to pre-osteoblast early-stage behavior than during a longer culture of 24 h and 48 h. The electrodeposition of matrix proteins could be improved to maintain their bio-activity and to develop this promising, fast technique to bio-functionalize metallic implants.
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Affiliation(s)
- Séverine Alfonsi
- Laboratoire de Physicochimie des Polymères et des Interfaces (LPPI Lab), CY Cergy Paris University, F-95000 Cergy, France
| | - Pithursan Karunathasan
- Laboratoire de Physicochimie des Polymères et des Interfaces (LPPI Lab), CY Cergy Paris University, F-95000 Cergy, France
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellule (ERRMECe Lab), CY Cergy Paris University, F-95000 Cergy, France
| | - Ayann Mamodaly-Samdjee
- Laboratoire de Physicochimie des Polymères et des Interfaces (LPPI Lab), CY Cergy Paris University, F-95000 Cergy, France
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellule (ERRMECe Lab), CY Cergy Paris University, F-95000 Cergy, France
| | - Keerthana Balathandayutham
- Laboratoire de Physicochimie des Polymères et des Interfaces (LPPI Lab), CY Cergy Paris University, F-95000 Cergy, France
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellule (ERRMECe Lab), CY Cergy Paris University, F-95000 Cergy, France
| | - Sarah Lefevre
- Laboratoire de Physicochimie des Polymères et des Interfaces (LPPI Lab), CY Cergy Paris University, F-95000 Cergy, France
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellule (ERRMECe Lab), CY Cergy Paris University, F-95000 Cergy, France
| | - Anamar Miranda
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellule (ERRMECe Lab), CY Cergy Paris University, F-95000 Cergy, France
| | - Olivier Gallet
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellule (ERRMECe Lab), CY Cergy Paris University, F-95000 Cergy, France
| | - Damien Seyer
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellule (ERRMECe Lab), CY Cergy Paris University, F-95000 Cergy, France
| | - Mathilde Hindié
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellule (ERRMECe Lab), CY Cergy Paris University, F-95000 Cergy, France
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3
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Erenay B, Sağlam ASY, Garipcan B, Jandt KD, Odabaş S. Bone surface mimicked PDMS membranes stimulate osteoblasts and calcification of bone matrix. BIOMATERIALS ADVANCES 2022; 142:213170. [PMID: 36341745 DOI: 10.1016/j.bioadv.2022.213170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/06/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
Cellular microenvironments play a crucial role in cell behavior. In addition to the biochemical cues present in the microenvironments, biophysical and biomechanical properties on surfaces have an impact on cellular functionality and eventually cellular fate. Effects of surface topography on cell behavior are being studied extensively in the literature. However, these studies often try to replicate topographical features of tissue surfaces by using techniques such as chemical etching, photolithography, and electrospinning, which may result in the loss of crucial micro- and nano- features on the tissue surfaces such as bone. This study investigates the topographical effects of bone surface by transferring its surface features onto polydimethylsiloxane (PDMS) membranes using soft lithography from a bovine femur. Our results have shown that major features on bone surfaces were successfully transferred onto PDMS using soft lithography. Osteoblast proliferation and calcification of bone matrix have significantly increased along with osteoblast-specific differentiation and maturation markers such as osteocalcin (OSC), osterix (OSX), collagen type I alpha 1 chain (COL1A1), and alkaline phosphatase (ALP) on bone surface mimicked (BSM) PDMS membranes in addition to a unidirectional alignment of osteoblast cells compared to plain PDMS surfaces. This presented bone surface mimicking method can provide a versatile native-like platform for further investigation of intracellular pathways regarding osteoblast growth and differentiation.
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Affiliation(s)
- Berkay Erenay
- Biomimetics and Bioinspired Biomaterials Research Laboratory, Institute of Biomedical Engineering, Boğaziçi University, 34684, Turkey
| | - Atiye Seda Yar Sağlam
- Department of Medical Biology and Genetics, Faculty of Medicine, Gazi University, Besevler, Ankara 06500, Turkey
| | - Bora Garipcan
- Biomimetics and Bioinspired Biomaterials Research Laboratory, Institute of Biomedical Engineering, Boğaziçi University, 34684, Turkey
| | - Klaus D Jandt
- Chair of Materials Science, Otto Schott Institute of Materials Research, Friedrich Schiller University, Jena 07743, Germany.
| | - Sedat Odabaş
- Biomaterials and Tissue Engineering Laboratory (BteLAB), Faculty of Science, Department of Chemistry, Ankara University, 06560, Turkey; Interdisciplinary Research Unit for Advanced Materials (INTRAM), Ankara University, Ankara 06560, Turkey.
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Krieghoff J, Gronbach M, Schulz-Siegmund M, Hacker MC. Biodegradable macromers for implant bulk and surface engineering. Biol Chem 2021; 402:1357-1374. [PMID: 34433237 DOI: 10.1515/hsz-2021-0161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 08/09/2021] [Indexed: 11/15/2022]
Abstract
Macromers, polymeric molecules with at least two functional groups for cross-polymerization, are interesting materials to tailor mechanical, biochemical and degradative bulk and surface properties of implants for tissue regeneration. In this review we focus on macromers with at least one biodegradable building block. Manifold design options, such as choice of polymeric block(s), optional core molecule and reactive groups, as well as cross-co-polymerization with suitable anchor or linker molecules, allow the adaptation of macromer-based biomaterials towards specific application requirements in both hard and soft tissue regeneration. Implants can be manufactured from macromers using additive manufacturing as well as molding and templating approaches. This review summarizes and discusses the overall concept of biodegradable macromers and recent approaches for macromer processing into implants as well as techniques for surface modification directed towards bone regeneration. These aspects are reviewed including a focus on the authors' contributions to the field through research within the collaborative research project Transregio 67.
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Affiliation(s)
- Jan Krieghoff
- Medical Faculty, Pharmaceutical Technology, Leipzig University, Eilenburger Str. 15A, D-04317 Leipzig, Germany.,Collaborative Research Center (SFB-TRR67) "Functional Biomaterials for Controlling Healing Processes in Bone and Skin - From Material Science to Clinical Application", Leipzig and Dresden, Germany
| | - Mathis Gronbach
- Medical Faculty, Pharmaceutical Technology, Leipzig University, Eilenburger Str. 15A, D-04317 Leipzig, Germany.,Collaborative Research Center (SFB-TRR67) "Functional Biomaterials for Controlling Healing Processes in Bone and Skin - From Material Science to Clinical Application", Leipzig and Dresden, Germany
| | - Michaela Schulz-Siegmund
- Medical Faculty, Pharmaceutical Technology, Leipzig University, Eilenburger Str. 15A, D-04317 Leipzig, Germany.,Collaborative Research Center (SFB-TRR67) "Functional Biomaterials for Controlling Healing Processes in Bone and Skin - From Material Science to Clinical Application", Leipzig and Dresden, Germany
| | - Michael C Hacker
- Medical Faculty, Pharmaceutical Technology, Leipzig University, Eilenburger Str. 15A, D-04317 Leipzig, Germany.,Collaborative Research Center (SFB-TRR67) "Functional Biomaterials for Controlling Healing Processes in Bone and Skin - From Material Science to Clinical Application", Leipzig and Dresden, Germany.,Institute of Pharmaceutics and Biopharmaceutics, Heinrich Heine University, Universitätsstrasse 1, D-40225 Düsseldorf, Germany
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5
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Palkowitz AL, Tuna T, Bishti S, Böke F, Steinke N, Müller‐Newen G, Wolfart S, Fischer H. Biofunctionalization of Dental Abutment Surfaces by Crosslinked ECM Proteins Strongly Enhances Adhesion and Proliferation of Gingival Fibroblasts. Adv Healthc Mater 2021; 10:e2100132. [PMID: 33694324 DOI: 10.1002/adhm.202100132] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Indexed: 12/14/2022]
Abstract
To ensure the long-term success of dental implants, a functional attachment of the soft tissue to the surface of the implant abutment is decisively important in order to prevent the penetration of bacteria into the implant-bone interface, which can trigger peri-implant disease. Here a surface modification approach is described that includes the covalent immobilization of the extracellular matrix (ECM) proteins fibronectin and laminin via a crosslinker to silanized Ti6Al4V and Y-TZP surfaces. The surface properties are evaluated using static contact angle, X-ray photoelectron spectroscopy (XPS), and atomic force microscopy (AFM). The interaction of human gingival fibroblasts (HGFs) with the immobilized ECM proteins is verified by analyzing the localization of focal contacts, cell area, cell morphology, proliferation rate, and integrin expression. It is observed in the presence of fibronectin and laminin an increased cellular attachment, proliferation, and integrin expression of HGFs accompanied by a significantly higher number of focal adhesions. The presented approach holds great potential to enable a stronger bond between soft tissue and implant abutment surface. This could potentially help to prevent the penetration of bacteria in an in vivo application and thus reduce the risk of periimplant disease.
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Affiliation(s)
- Alena L. Palkowitz
- Department of Dental Materials and Biomaterials Research RWTH Aachen University Hospital Pauwelsstrasse 30 Aachen 52074 Germany
| | - Taskin Tuna
- Department of Prosthodontics and Biomaterials RWTH Aachen University Hospital Pauwelsstrasse 30 Aachen 52074 Germany
| | - Shaza Bishti
- Department of Prosthodontics and Biomaterials RWTH Aachen University Hospital Pauwelsstrasse 30 Aachen 52074 Germany
| | - Frederik Böke
- Department of Dental Materials and Biomaterials Research RWTH Aachen University Hospital Pauwelsstrasse 30 Aachen 52074 Germany
| | - Nathalie Steinke
- Flow Cytometry Facility Faculty of Medicine of RWTH Aachen University Hospital Pauwelsstrasse 30 Aachen 52074 Germany
| | - Gerhard Müller‐Newen
- Institute of Biochemistry and Molecular Biology Confocal Microscopy Facility RWTH Aachen University Hospital Pauwelsstrasse 30 Aachen 52074 Germany
| | - Stefan Wolfart
- Department of Prosthodontics and Biomaterials RWTH Aachen University Hospital Pauwelsstrasse 30 Aachen 52074 Germany
| | - Horst Fischer
- Department of Dental Materials and Biomaterials Research RWTH Aachen University Hospital Pauwelsstrasse 30 Aachen 52074 Germany
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6
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Bekmurzayeva A, Dukenbayev K, Azevedo HS, Marsili E, Tosi D, Kanayeva D. Optimizing Silanization to Functionalize Stainless Steel Wire: Towards Breast Cancer Stem Cell Isolation. MATERIALS 2020; 13:ma13173693. [PMID: 32825531 PMCID: PMC7504676 DOI: 10.3390/ma13173693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/09/2020] [Accepted: 08/11/2020] [Indexed: 12/03/2022]
Abstract
Chemically modified metal surfaces have been used to recognize and capture specific cell types and biomolecules. In this work, stainless steel wires were functionalized with aptamers against breast cancer stem cell markers. Stainless steel wires were first electropolished and silanized via electrodeposition. Aptamers were then attached to the silanized surface through a cross-linker. The functionalized wires were able to capture the target cells in an in vitro test. During surface modification steps, wires were analyzed by atomic force microscopy, cyclic voltammetry, scanning electron and fluorescence microscopy to determine their surface composition and morphology. Optimized conditions of silanization (applied potential, solution pH, heat treatment temperature) for obtaining an aptamer-functionalized wire were determined in this work together with the use of several surface characterization techniques suitable for small-sized and circular wires. These modified wires have potential applications for the in vivo capture of target cells in blood flow, since their small size allows their insertion as standard guidewires in biomedical devices.
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Affiliation(s)
- Aliya Bekmurzayeva
- Science, Engineering and Technology Program, Nazarbayev University, Nur-Sultan 010000, Kazakhstan;
- National Laboratory Astana, Nazarbayev University, Nur-Sultan 010000, Kazakhstan;
| | - Kanat Dukenbayev
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (K.D.); (E.M.)
| | - Helena S. Azevedo
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK;
| | - Enrico Marsili
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (K.D.); (E.M.)
| | - Daniele Tosi
- National Laboratory Astana, Nazarbayev University, Nur-Sultan 010000, Kazakhstan;
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (K.D.); (E.M.)
| | - Damira Kanayeva
- School of Sciences and Humanities, Nazarbayev University, Nur-Sultan 010000, Kazakhstan
- Correspondence:
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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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8
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Kämmerer PW, Pabst AM, Dau M, Staedt H, Al-Nawas B, Heller M. Immobilization of BMP-2, BMP-7 and alendronic acid on titanium surfaces: Adhesion, proliferation and differentiation of bone marrow-derived stem cells. J Biomed Mater Res A 2019; 108:212-220. [PMID: 31587476 DOI: 10.1002/jbm.a.36805] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 08/28/2019] [Accepted: 09/03/2019] [Indexed: 12/11/2022]
Abstract
This study analyzed the influence of titanium (TiO2 ) surface modifications with two osteogenic proteins (BMP-2, BMP-7) and an anti-osteoclastic drug (alendronic acid [AA]) on sandblasted/acid-etched (SLA) and plain TiO2 (PT) on cell adhesion, proliferation and differentiation (alkaline phosphatase [AP] and osteocalcin [OC]) of bone-marrow derived stem cells (BMSCs) after 1, 3 and 7 days in-vitro. Initially, AA surfaces showed the highest cell number and surface coverage. At day 3 and 7, BMP and AA-modified surfaces exhibited a significantly enhanced cell growth. For proliferation, at days 3 and 7, an enhancement on BMP-2, BMP-7 and AA-surfaces was seen. At day 7, SLA also showed a higher proliferation when compared to PT. Initially, AP expression was elevated on SLA and AA surfaces. At days 3 and 7, a significant increased AP expression was seen for SLA, BMP-2, BMP-7 and AA discs. For OC, SLA and AA surfaces had the highest expression after 1 day whereas after 3 and 7 days a significant difference was recorded for SLA, BMP-2, BMP-7 and AA. In conclusion, a beneficial biological effect of a chemical immobilization method of BMP-2, BMP-7 and alendronate onto titanium surfaces on BMSCs was proven.
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Affiliation(s)
- Peer W Kämmerer
- Department of Oral- and Maxillofacial Surgery, University Medical Center Mainz, Mainz, Germany
| | - Andreas M Pabst
- Department of Oral- and Maxillofacial Surgery, Federal Armed Forces Hospital, Koblenz, Germany
| | - Michael Dau
- Department of Oral- and Maxillofacial Surgery, University Medical Center Rostock, Rostock, Germany
| | - Henning Staedt
- Private Practice and Department of Prosthodontics and Materials Science, University Medical Center Rostock, Rostock, Germany
| | - Bilal Al-Nawas
- Department of Oral- and Maxillofacial Surgery, University Medical Center Mainz, Mainz, Germany
| | - Martin Heller
- Department of Gynecology, Johannes Gutenberg University Medical Center, Mainz, Germany
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9
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Jeong YW, Jung S, Han JJ, Park HJ, Kim RY, Kim BH, Kook MS. Effectiveness of Surface Treatment with Amine Plasma for Improving the Biocompatibility of Maxillofacial Plates. MATERIALS 2019; 12:ma12162581. [PMID: 31412641 PMCID: PMC6719966 DOI: 10.3390/ma12162581] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 08/09/2019] [Accepted: 08/12/2019] [Indexed: 11/16/2022]
Abstract
To date, no products have been presented for the surface treatment of metal plates used for repairing maxillofacial defects caused by trauma. Plasma surface treatment is a useful technique for chemically modifying the surfaces of biomaterials. Amine plasma-polymerization is an efficient way to prepare bioactive thin film polymers terminated with nitrogen-containing functional groups. The purpose of this study was to investigate the improvement in biocompatibility of titanium (Ti) plates treated with amine plasma-polymerization, and analyze their surfaces characteristics. To compare biocompatibility levels, in vitro test and animal study were performed using an amine plasma-polymerized Ti plate and an untreated Ti plate. After amine plasma-polymerization, the hydrophilicity of the Ti surface was remarkably improved. Biocompatibility was also improved for the Ti plates treated with amine plasma. The clinical application of this technique will not only shorten the time required for osseointegration, but will also improve the regeneration of bone.
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Affiliation(s)
- Yeon-Woo Jeong
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, Gwangju 61186, Korea
| | - Seunggon Jung
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, Gwangju 61186, Korea
| | - Jeong Joon Han
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, Gwangju 61186, Korea
| | - Hong-Ju Park
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, Gwangju 61186, Korea
| | | | - Byung-Hoon Kim
- Department of Dental Materials, College of Dentistry, Chosun University, Gwangju 61452, Korea
| | - Min-Suk Kook
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, Gwangju 61186, Korea.
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10
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Jäger M, Jennissen HP, Haversath M, Busch A, Grupp T, Sowislok A, Herten M. Intrasurgical Protein Layer on Titanium Arthroplasty Explants: From the Big Twelve to the Implant Proteome. Proteomics Clin Appl 2019; 13:e1800168. [PMID: 30770655 DOI: 10.1002/prca.201800168] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 02/08/2019] [Indexed: 12/26/2022]
Abstract
PURPOSE Aseptic loosening in total joint replacement due to insufficient osteointegration is an unsolved problem in orthopaedics. The purpose of the study is to obtain a picture of the initial protein adsorption layer on femoral endoprosthetic surfaces as the key to the initiation of osseointegration. EXPERIMENTAL DESIGN The paper describes the first study of femoral stem explants from patients for proteome analysis of the primary protein layer. After 2 min in situ, the stems are explanted and frozen in liquid nitrogen. Proteins are eluted under reducing conditions and analyzed by LC-MS/MS. RESULTS After exclusion of proteins identified by a single peptide, the implant proteome is found to consist of 2802 unique proteins. Of these, 77% are of intracellular origin, 9% are derived from the plasma proteome, 8% from the bone proteome, and four proteins with highest specificity score could be assigned to the bone marrow proteome (transcriptome). The most abundant protein in the adsorbed total protein layer is hemoglobin (8-11%) followed by serum albumin (3.6-6%). CONCLUSIONS A detailed knowledge of the initial protein film deposited onto the implants, as demonstrated here for the first time, may help to understand and predict the response of the osseous microenvironment to implant surfaces.
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Affiliation(s)
- Marcus Jäger
- Department of Orthopedics and Trauma Surgery, University of Duisburg-Essen, 45147 Essen, Germany
| | - Herbert P Jennissen
- Department of Orthopedics and Trauma Surgery, University of Duisburg-Essen, 45147 Essen, Germany.,Institute of Physiological Chemistry, Work Group Biochemical Endocrinology, University of Duisburg-Essen, 45147 Essen, Germany
| | - Marcel Haversath
- Department of Orthopedics and Trauma Surgery, University of Duisburg-Essen, 45147 Essen, Germany
| | - André Busch
- Department of Orthopedics and Trauma Surgery, University of Duisburg-Essen, 45147 Essen, Germany
| | - Thomas Grupp
- Aesculap AG, Research & Development, 78532 Tuttlingen, Germany
| | - Andrea Sowislok
- Department of Orthopedics and Trauma Surgery, University of Duisburg-Essen, 45147 Essen, Germany.,Institute of Physiological Chemistry, Work Group Biochemical Endocrinology, University of Duisburg-Essen, 45147 Essen, Germany
| | - Monika Herten
- Department of Orthopedics and Trauma Surgery, University of Duisburg-Essen, 45147 Essen, Germany
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11
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Surface-attached dual-functional hydrogel for controlled cell adhesion based on poly(N,N-dimethylacrylamide). JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1728-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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12
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Stewart CAC, Akhavan B, Hung J, Bao S, Jang JH, Wise SG, Bilek MMM. Multifunctional Protein-Immobilized Plasma Polymer Films for Orthopedic Applications. ACS Biomater Sci Eng 2018; 4:4084-4094. [DOI: 10.1021/acsbiomaterials.8b00954] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Callum A. C. Stewart
- School of Physics, University of Sydney, Physics Road, Camperdown, NSW 2006, Australia
- Heart Research Institute, 7 Eliza Street, Newtown, New South Wales 2042, Australia
- Charles Perkins Centre, University of Sydney, Camperdown NSW 2006, Australia
| | - Behnam Akhavan
- School of Physics, University of Sydney, Physics Road, Camperdown, NSW 2006, Australia
- Heart Research Institute, 7 Eliza Street, Newtown, New South Wales 2042, Australia
- School of Aerospace Mechanical and Mechatronic Engineering, University of Sydney, Camperdown, NSW 2006, Australia
| | - Juichien Hung
- Heart Research Institute, 7 Eliza Street, Newtown, New South Wales 2042, Australia
| | - Shisan Bao
- Charles Perkins Centre, University of Sydney, Camperdown NSW 2006, Australia
- Sydney Medical School, University of Sydney, Camperdown, NSW 2006, Australia
| | - Jun-Hyeog Jang
- School of Medicine, Inha University, Incheon 400−712, Korea
| | - Steven G. Wise
- Heart Research Institute, 7 Eliza Street, Newtown, New South Wales 2042, Australia
- Sydney Medical School, University of Sydney, Camperdown, NSW 2006, Australia
| | - Marcela M. M. Bilek
- School of Physics, University of Sydney, Physics Road, Camperdown, NSW 2006, Australia
- Charles Perkins Centre, University of Sydney, Camperdown NSW 2006, Australia
- School of Aerospace Mechanical and Mechatronic Engineering, University of Sydney, Camperdown, NSW 2006, Australia
- Sydney Nano Institute, The University of Sydney, Camperdown, NSW 2006, Australia
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Antimicrobial and Osseointegration Properties of Nanostructured Titanium Orthopaedic Implants. MATERIALS 2017; 10:ma10111302. [PMID: 29137166 PMCID: PMC5706249 DOI: 10.3390/ma10111302] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 11/01/2017] [Accepted: 11/08/2017] [Indexed: 02/06/2023]
Abstract
The surface design of titanium implants influences not only the local biological reactions but also affects at least the clinical result in orthopaedic application. During the last decades, strong efforts have been made to improve osteointegration and prevent bacterial adhesion to these surfaces. Following the rule of “smaller, faster, cheaper”, nanotechnology has encountered clinical application. It is evident that the hierarchical implant surface micro- and nanotopography orchestrate the biological cascades of early peri-implant endosseous healing or implant loosening. This review of the literature gives a brief overview of nanostructured titanium-base biomaterials designed to improve osteointegration and prevent from bacterial infection.
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Mu C, Hu Y, Huang L, Shen X, Li M, Li L, Gu H, Yu Y, Xia Z, Cai K. Sustained raloxifene release from hyaluronan-alendronate-functionalized titanium nanotube arrays capable of enhancing osseointegration in osteoporotic rabbits. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 82:345-353. [PMID: 29025668 DOI: 10.1016/j.msec.2017.08.056] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Revised: 07/25/2017] [Accepted: 08/10/2017] [Indexed: 02/05/2023]
Abstract
To enhance the localized bone remodeling at titanium-based implants under osteoporotic conditions, TiO2 nanotube arrays (TNT) were used as nanoreserviors for raloxifene (Ral) and then covered with the hybrid multilayered coating of chitosan and alendronate grafted hyaluronic acid (HA-Aln) via a spin-assisted layer-by-layer technique. The fabrication of this system (TNT/Ral/LBL-Aln) was characterized by field emission scanning electron microscopy (SEM), atomic force microscope (AFM) and X-ray photoelectron spectroscopy (XPS), respectively. The release test showed that the composited multilayers onto Ral-loaded TiO2 nanotube substrate (TNT/Ral) could prevent the burst release of Ral from TiO2 nanotube arrays and maintain stable Ral concentration at the implant site even after 192h. The TNT/Ral/LBL-Aln system demonstrated higher alkaline phosphatase (ALP) activity, mineralization capability in osteoblasts as well as lower tartrate-resistant acid phosphatase (TRAP) activity in osteoclasts compared to both bare TiO2 nanotube and TNT/Ral substrate, respectively. Moreover, the in vivo tests of micro-CT, histological staining and push-out testing showed that TNT/Ral/LBL-Aln implant could efficiently enhance the formation of new bone around the implant and promote bone binding in osteoporotic rabbits. The study indicated the potential application of TNT/Ral/LBL-Aln system for bone remodeling under osteoporotic condition.
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Affiliation(s)
- Caiyun Mu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Yan Hu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Ling Huang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Xinkun Shen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Menghuan Li
- School of Life Science, Chongqing University, Chongqing 400044, China
| | - Liqi Li
- Department of General Surgery, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Hao Gu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Yonglin Yu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Zhining Xia
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
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15
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Ao H, Lin C, Nie B, Yang S, Xie Y, Wan Y, Zheng X. The synergistic effect of type I collagen and hyaluronic acid on the biological properties of Col/HA-multilayer-modified titanium coatings: an in vitro and in vivo study. RSC Adv 2017. [DOI: 10.1039/c6ra27364e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The synergistic effect on osseointegration is existed between Type I collagen (ColI) and hyaluronic acid (HA), and the early osseogenetic activity of ColI/HA multilayer modified titanium coatings (TC) is higher than that ColI modified TC and HA modified TC.
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Affiliation(s)
- Haiyong Ao
- School of Materials Science and Engineering
- East China Jiaotong University
- Nanchang
- China 330013
- Key Laboratory of Inorganic Coating Materials
| | - Chucheng Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai
- China 200050
| | - Binen Nie
- Shanghai Key Laboratory of Orthopedic Implants
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai
- China 200011
| | - Shengbing Yang
- Shanghai Key Laboratory of Orthopedic Implants
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai
- China 200011
| | - Youtao Xie
- Key Laboratory of Inorganic Coating Materials
- Shanghai Institute of Ceramics
- Chinese Academy of Science
- Shanghai
- China 200050
| | - Yizao Wan
- School of Materials Science and Engineering
- East China Jiaotong University
- Nanchang
- China 330013
| | - Xuebin Zheng
- Key Laboratory of Inorganic Coating Materials
- Shanghai Institute of Ceramics
- Chinese Academy of Science
- Shanghai
- China 200050
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16
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Krüger-Genge A, Fuhrmann R, Jung F, Franke RP. Effects of different components of the extracellular matrix on endothelialization. Clin Hemorheol Microcirc 2016; 64:867-874. [PMID: 27935545 DOI: 10.3233/ch-168051] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The endothelialization of cardiovascular prostheses is known to improve their haemocompatibility. As such body-foreign materials often do not endothelialize spontaneously. A lot of in vitro studies are ongoing how endothelialization of biomaterials can be improved. In this study the influence of different components of a tissue-typical extracellular matrix (ECM) like laminin, fibronectin or gelatin on the formation of an endothelial cell monolayer and on the shear resistance of adherent cells on these substrates was studied.The study revealed that the density of human venous endothelial cells (HUVEC) monolayers differed markedly between cells grown on a natural ECM and cells grown on singularized components of an ECM (p < 0.001). Only HUVEC grown on laminin showed similar densities and a stress fiber pattern comparable to HUVEC grown on the ECM. HUVEC grown on gelatin- or fibronectin-coated coverslips were less firmly attached to the substrate; frequently individual HUVEC and even groups of cells detached.Concluding it seems that coating of implants with laminin supports the formation of shear resistant endothelial cell (EC) monolayer - superior to other ECM components.
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Affiliation(s)
- A Krüger-Genge
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - R Fuhrmann
- Abteilung Biomaterialien, Zentralinstitut für Biomedizinische Technik, Universität Ulm, Ulm, Germany
| | - F Jung
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - R P Franke
- Abteilung Biomaterialien, Zentralinstitut für Biomedizinische Technik, Universität Ulm, Ulm, Germany
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17
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Van Nieuwenhove I, Salamon A, Peters K, Graulus GJ, Martins JC, Frankel D, Kersemans K, De Vos F, Van Vlierberghe S, Dubruel P. Gelatin- and starch-based hydrogels. Part A: Hydrogel development, characterization and coating. Carbohydr Polym 2016; 152:129-139. [PMID: 27516257 DOI: 10.1016/j.carbpol.2016.06.098] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 06/17/2016] [Accepted: 06/26/2016] [Indexed: 11/17/2022]
Abstract
The present work aims at constructing the ideal scaffold matrix of which the physico-chemical properties can be altered according to the targeted tissue regeneration application. Ideally, this scaffold should resemble the natural extracellular matrix (ECM) as close as possible both in terms of chemical composition and mechanical properties. Therefore, hydrogel films were developed consisting of methacrylamide-modified gelatin and starch-pentenoate building blocks because the ECM can be considered as a crosslinked hydrogel network consisting of both polysaccharides and structural, signaling and cell-adhesive proteins. For the gelatin hydrogels, three different substitution degrees were evaluated including 31%, 72% and 95%. A substitution degree of 32% was applied for the starch-pentenoate building block. Pure gelatin hydrogels films as well as interpenetrating networks with gelatin and starch were developed. Subsequently, these films were characterized using gel fraction and swelling experiments, high resolution-magic angle spinning (1)H NMR spectroscopy, rheology, infrared mapping and atomic force microscopy. The results indicate that both the mechanical properties and the swelling extent of the developed hydrogel films can be controlled by varying the chemical composition and the degree of substitution of the methacrylamide-modified gelatin applied. The storage moduli of the developed materials ranged between 14 and 63kPa. Phase separation was observed for the IPNs for which separated starch domains could be distinguished located in the surrounding gelatin matrix. Furthermore, we evaluated the affinity of aggrecan for gelatin by atomic force microscopy and radiolabeling experiments. We found that aggrecan can be applied as a bioactive coating for gelatin hydrogels by a straightforward physisorption procedure. Thus, we achieved distinct fine-tuning of the physico-chemical properties of these hydrogels which render them promising candidates for tissue engineering approaches.
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Affiliation(s)
- Ine Van Nieuwenhove
- Polymer Chemistry & Biomaterials Group, Ghent University, Krijgslaan 281, Building S4-Bis, BE-9000 Ghent, Belgium
| | - Achim Salamon
- Department of Cell Biology, Rostock University Medical Center, Schillingallee 69, D-18057 Rostock, Germany
| | - Kirsten Peters
- Department of Cell Biology, Rostock University Medical Center, Schillingallee 69, D-18057 Rostock, Germany
| | - Geert-Jan Graulus
- Polymer Chemistry & Biomaterials Group, Ghent University, Krijgslaan 281, Building S4-Bis, BE-9000 Ghent, Belgium
| | - José C Martins
- NMR and Structure Analysis Research Group, Ghent University, Krijgslaan 281, Building S4, BE-9000 Ghent, Belgium
| | - Daniel Frankel
- School of Chemical Engineering and Advanced Materials, University of Newcastle, Mertz Court, Claremont Road, NE1 7RU Newcastle Upon Tyne, United Kingdom
| | - Ken Kersemans
- Laboratory of Radiopharmacy, Ghent University, Ottergemsesteenweg 460, BE-9000 Ghent, Belgium
| | - Filip De Vos
- Laboratory of Radiopharmacy, Ghent University, Ottergemsesteenweg 460, BE-9000 Ghent, Belgium
| | - Sandra Van Vlierberghe
- Polymer Chemistry & Biomaterials Group, Ghent University, Krijgslaan 281, Building S4-Bis, BE-9000 Ghent, Belgium; Brussels Photonics Team, Vrije Universiteit Brussel, Pleinlaan 2, BE-1050 Brussels, Belgium.
| | - Peter Dubruel
- Polymer Chemistry & Biomaterials Group, Ghent University, Krijgslaan 281, Building S4-Bis, BE-9000 Ghent, Belgium.
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Pillitteri LJ, Guo X, Dong J. Asymmetric cell division in plants: mechanisms of symmetry breaking and cell fate determination. Cell Mol Life Sci 2016; 73:4213-4229. [PMID: 27286799 PMCID: PMC5522748 DOI: 10.1007/s00018-016-2290-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 06/02/2016] [Accepted: 06/02/2016] [Indexed: 02/07/2023]
Abstract
Asymmetric cell division is a fundamental mechanism that generates cell diversity while maintaining self-renewing stem cell populations in multicellular organisms. Both intrinsic and extrinsic mechanisms underpin symmetry breaking and differential daughter cell fate determination in animals and plants. The emerging picture suggests that plants deal with the problem of symmetry breaking using unique cell polarity proteins, mobile transcription factors, and cell wall components to influence asymmetric divisions and cell fate. There is a clear role for altered auxin distribution and signaling in distinguishing two daughter cells and an emerging role for epigenetic modifications through chromatin remodelers and DNA methylation in plant cell differentiation. The importance of asymmetric cell division in determining final plant form provides the impetus for its study in the areas of both basic and applied science.
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Affiliation(s)
- Lynn Jo Pillitteri
- Department of Biology, Western Washington University, Bellingham, WA, 98225, USA
| | - Xiaoyu Guo
- Waksman Institute of Microbiology, Rutgers the State University of New Jersey, Piscataway, NJ, 08854, USA
| | - Juan Dong
- Waksman Institute of Microbiology, Rutgers the State University of New Jersey, Piscataway, NJ, 08854, USA.
- Department of Plant Biology and Pathology, Rutgers the State University of New Jersey, New Brunswick, NJ, 08901, USA.
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19
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Kämmerer TA, Palarie V, Schiegnitz E, Topalo V, Schröter A, Al-Nawas B, Kämmerer PW. A biphasic calcium phosphate coating for potential drug delivery affects early osseointegration of titanium implants. J Oral Pathol Med 2016; 46:61-66. [PMID: 27272434 DOI: 10.1111/jop.12464] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/10/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Calcium phosphate (CaP) surface coatings may accelerate osseointegration and serve as a drug delivery system for mineral-binding biomolecules. In a pilot study, the impact of a commercially available, thin CaP coating on early osseous bone remodeling was compared with a modern, subtractive-treated rough surface (SLA-like) in an animal trial. METHODS In 16 rabbits, 32 endosseous implants (CaP; n = 16, SLA-like; n = 16) were bilaterally inserted in the proximal tibia after randomization. After 2 and 4 weeks, bone-implant contact (BIC;%) in the cortical (cBIC) and the trabecular bone (sBIC) as well as volume of bone within the screw thread with the highest amount of new-formed bone (area;%) were analyzed. RESULTS After 2 weeks, cBIC was significantly higher for CaP when compared with SLA-like (58 ± 7% versus 40.4 ± 18%; P = 0.021). sBIC for CaP was 14.7 ± 8% and for SLA-like 7.2 ± 7.8% (P = 0.081). For area, the mean volumes were 82.8 ± 10.8% for CaP and 73.6 ± 22% for SLA-like (P = 0.311). After 4 weeks, cBIC was 42.9 ± 13% for the CaP and 46.5 ± 29.1% for the SLA-like group (P = 0.775). An sBIC of 6.9 ± 9.3% was calculated for CaP and of 12.3 ± 4.8% for SLA-like (P = 0.202). The values for area were 62.3 ± 24.1% for CaP and 50.1 ± 25.9% for SLA-like (P = 0.379). CONCLUSIONS The CaP coating has putative additional advantages in the early osseoconduction phases. It seems suitable for a feasible and clinical applicable bioactivation.
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Affiliation(s)
- Till A Kämmerer
- Department of Oral, Maxillofacial and Plastic Surgery, University Medical Center Mainz, Mainz, Germany
| | - Victor Palarie
- Laboratory of Tissue Engineering, State University of Medicine and Pharmacy "N. Testemitanu", Chisinau, Moldova
| | - Eik Schiegnitz
- Department of Oral, Maxillofacial and Plastic Surgery, University Medical Center Mainz, Mainz, Germany
| | - Valentin Topalo
- Clinic for Oral & Maxillofacial Surgery, State University of Medicine and Pharmacy "N. Testemitanu", Chisinau, Moldova
| | | | - Bilal Al-Nawas
- Department of Oral, Maxillofacial and Plastic Surgery, University Medical Center Mainz, Mainz, Germany
| | - Peer W Kämmerer
- Department of Oral, Maxillofacial and Plastic Surgery, University Medical Center Rostock, Rostock, Germany
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20
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Kumar VV, Heller M, Götz H, Schiegnitz E, Al-Nawas B, Kämmerer PW. Comparison of growth & function of endothelial progenitor cells cultured on deproteinized bovine bone modified with covalently bound fibronectin and bound vascular endothelial growth factor. Clin Oral Implants Res 2016; 28:543-550. [PMID: 26992449 DOI: 10.1111/clr.12832] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2016] [Indexed: 01/07/2023]
Abstract
OBJECTIVES The objective of this study was to assess and compare the growth and function of Endothelial Progenitor Cells (EPCs) cultured on covalently bonded Vascular Endothelial Growth Factor (VEGF) and covalently bonded Fibronectin (FN) coating on deproteinized bovine bone (DBB) (test samples), compared to non-modified DBB blocks (control sample). MATERIALS AND METHODS The test samples were prepared by plasma polymerization of allylamine onto DBB blocks. Group1 of test samples were prepared with VEGF coating (VEGF-DBB) where as the Group2 test samples were coated with FN (FN-DBB). Non-modified DBB blocks served as a Control. EPCs were isolated and cultivated from buffy coats of peripheral blood of healthy volunteers and cultivated in the different samples and examined at time intervals of 24 h, 3 days, and 7 days. Evaluation of growth by cell count and cell morphology was done using Confocal Laser Scanning Electron Microscopy; vitality and function of cells was assessed using MTT assay and RT-PCR and ELISA for eNOS and iNOS respectively. RESULTS The results of the study show that both VEGF and FN could be successfully immobilized by plasma polymerization onto a complex, porous, three-dimensional structure of DBB. When comparing vital cell coverage, proliferation and function of EPCs, FN-DBB provided more positive values followed by VEGF-DBB as compared to DBB samples. eNOS level were significant higher in VEGF-DBB and FN-DBB when compared to DBB (P = 0.019 and P = 0.002). The difference between VEGF-DBB and FN-DBB was not significant. CONCLUSIONS Biomimetic coatings of Fibronectin may clinically relate to faster angiogenesis and earlier healing potential.
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Affiliation(s)
- Vinay V Kumar
- Department of Oral and Maxillofacial Surgery, University Medical Center of Johannes Gutenberg University, Mainz, Germany.,Department of Oral and Maxillofacial Surgery, University Medical Center of Rostock University, Rostock, Germany.,Head and Neck Institute, Mazumdar Shaw Medical Center and Center for Translational Research, Narayana Health, Bangalore, India
| | - Martin Heller
- Max Plank Institute for Polymer Research, Mainz, Germany
| | - Hermann Götz
- Department of Applied Structure and Microanalysis, University Medical Center of Johannes Gutenberg University, Mainz, Germany
| | - Eik Schiegnitz
- Department of Oral and Maxillofacial Surgery, University Medical Center of Johannes Gutenberg University, Mainz, Germany
| | - Bilal Al-Nawas
- Department of Oral and Maxillofacial Surgery, University Medical Center of Johannes Gutenberg University, Mainz, Germany
| | - Peer W Kämmerer
- Department of Oral and Maxillofacial Surgery, University Medical Center of Rostock University, Rostock, Germany
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21
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Surface Treatments and Functional Coatings for Biocompatibility Improvement and Bacterial Adhesion Reduction in Dental Implantology. COATINGS 2016. [DOI: 10.3390/coatings6010007] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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22
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Lukas K, Thomas U, Gessner A, Wehner D, Schmid T, Schmid C, Lehle K. Plasma functionalization of polycarbonaturethane to improve endothelialization—Effect of shear stress as a critical factor for biocompatibility control. J Biomater Appl 2016; 30:1417-28. [DOI: 10.1177/0885328215626072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Medical devices made of polycarbonaturethane (PCU) combine excellent mechanical properties and little biological degradation, but restricted hemocompatibility. Modifications of PCU might reduce platelet adhesion and promote stable endothelialization. PCU was modified using gas plasma treatment, binding of hydrogels, and coupling of cell-active molecules (modified heparin, anti-thrombin III (ATIII), argatroban, fibronectin, laminin-nonapeptide, peptides with integrin-binding arginine-glycine-aspartic acid (RGD) motif). Biocompatibility was verified with static and dynamic cell culture techniques. Blinded analysis focused on improvement in endothelial cell (EC) adhesion/proliferation, anti-thrombogenicity, reproducible manufacturing process, and shear stress tolerance of ECs. EC adhesion and antithrombogenicity were achieved with 9/35 modifications. Additionally, 6/9 stimulated EC proliferation and 3/6 modification processes were highly reproducible for endothelialization. The latter modifications comprised immobilization of ATIII (A), polyethyleneglycole-diamine-hydrogel (E) and polyethylenimine-hydrogel connected with modified heparin (IH). Under sheer stress, only the IH modification improved EC adhesion within the graft. However, ECs did not arrange in flow direction and cell anchorage was restricted. Despite large variation in surface modification chemistry and improved EC adhesion under static culture conditions, additional introduction of shear stress foiled promising preliminary data. Therefore, biocompatibility testing required not only static tests but also usage of physiological conditions such as shear stress in the case of vascular grafts.
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Affiliation(s)
- Karin Lukas
- IMHR, Institute for Medical Microbiology and Hygiene, University of Regensburg, Regensburg, Germany
| | | | - André Gessner
- IMHR, Institute for Medical Microbiology and Hygiene, University of Regensburg, Regensburg, Germany
| | | | | | - Christof Schmid
- Department of Cardiothoracic Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Karla Lehle
- Department of Cardiothoracic Surgery, University Hospital Regensburg, Regensburg, Germany
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