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Panayotov IV, Végh AG, Martin M, Vladimirov B, Larroque C, Gergely C, Cuisinier FJG, Estephan E. Improving dental epithelial junction on dental implants with bioengineered peptides. Front Bioeng Biotechnol 2023; 11:1165853. [PMID: 37409165 PMCID: PMC10318435 DOI: 10.3389/fbioe.2023.1165853] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 06/12/2023] [Indexed: 07/07/2023] Open
Abstract
Introduction: The functionalization of titanium (Ti) and titanium alloys (Ti6Al4V) implant surfaces via material-specific peptides influence host/biomaterial interaction. The impact of using peptides as molecular linkers between cells and implant material to improve keratinocyte adhesion is reported. Results: The metal binding peptides (MBP-1, MBP-2) SVSVGMKPSPRP and WDPPTLKRPVSP were selected via phage display and combined with laminin-5 or E-cadherin epithelial cell specific peptides (CSP-1, CSP-2) to engineer four metal-cell specific peptides (MCSPs). Single-cell force spectroscopy and cell adhesion experiments were performed to select the most promising candidate. In vivo tests using the dental implant for rats showed that the selected bi functional peptide not only enabled stable cell adhesion on the trans-gingival part of the dental implant but also arrested the unwanted apical migration of epithelial cells. Conclusion: The results demonstrated the outstanding performance of the bioengineered peptide in improving epithelial adhesion to Ti based implants and pointed towards promising new opportunities for applications in clinical practice.
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Affiliation(s)
- Ivan V. Panayotov
- LBN, University Montpellier, Montpellier, France
- CSERD, CHU Montpellier, Montpellier, France
| | - Attila G. Végh
- Biological Research Centre, Institute of Biophysics, Eötvös Lóránd Research Network (ELKH), Szeged, Hungary
| | - Marta Martin
- L2C, University Montpellier, CNRS, Montpellier, France
| | - Boyan Vladimirov
- Department of Maxillofacial Surgery, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Christian Larroque
- Department of Nephrology, CHU Montpellier, Hôpital Lapeyronie, IRMB, University of Montpellier, INSERM U1183, Montpellier, France
| | | | | | - Elias Estephan
- LBN, University Montpellier, Montpellier, France
- Neuroscience Research Center, Faculty of Medical Sciences, Lebanese University, Beirut, Lebanon
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2
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Lenzuni M, Suarato G, Miele D, Carzino R, Ruggeri M, Bertorelli R, Sandri G, Athanassiou A. Development of biodegradable zein-based bilayer coatings for drug-eluting stents. RSC Adv 2021; 11:24345-24358. [PMID: 35479013 PMCID: PMC9036829 DOI: 10.1039/d1ra03748j] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 06/29/2021] [Indexed: 12/25/2022] Open
Abstract
Drug-eluting stents (DES) have been widely used for the treatment of cardiovascular diseases. Nevertheless, chronic inflammation and delayed re-endothelialization still represent challenges for their clinical use. In the present work, we developed novel bilayer coatings for stent applications that could overcome these limitations, exclusively using biodegradable plant-based drugs and polymers. In particular, stainless steel surfaces were coated with rutin-loaded zein (the active layer) and cross-linked alginate (the sacrificial layer) via facile dip and spray coating methods. Various mechanical tests and analysis tools, such as infrared spectroscopy, water contact angle measurements, and scanning electron microscopy were used to characterize the coated surfaces. Degradation and release studies of the films were extensively carried out and compared. The release rate of rutin from the bilayer coating reached 66.1 ± 3.2% within 24 hours of incubation (initial burst period), while the rest of the drug was released over 21 days in a sustained manner. Antioxidant assays confirmed that rutin retained its free radical scavenging ability after being eluted in phosphate buffer at 37 °C. In vitro results with human fibroblasts and endothelial cells suggested that the coating materials and their degradation products are highly biocompatible. In conclusion, our novel drug-eluting coatings, fabricated with natural biodegradable polymers, are promising materials for DES applications, allowing a sustained drug delivery and improving the biocompatibility of cardiovascular implanted devices.
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Affiliation(s)
- Martina Lenzuni
- Smart Materials Group, Istituto Italiano di Tecnologia via Morego 30 16163 Genoa Italy
- DIBRIS, University of Genoa via Opera Pia 13 Genoa Italy
| | - Giulia Suarato
- Smart Materials Group, Istituto Italiano di Tecnologia via Morego 30 16163 Genoa Italy
- Translational Pharmacology, Istituto Italiano di Tecnologia via Morego 30 16163 Genoa Italy
| | - Dalila Miele
- Department of Drug Sciences, University of Pavia viale Taramelli 12 27100 Pavia Italy
| | - Riccardo Carzino
- Smart Materials Group, Istituto Italiano di Tecnologia via Morego 30 16163 Genoa Italy
| | - Marco Ruggeri
- Department of Drug Sciences, University of Pavia viale Taramelli 12 27100 Pavia Italy
| | - Rosalia Bertorelli
- Translational Pharmacology, Istituto Italiano di Tecnologia via Morego 30 16163 Genoa Italy
| | - Giuseppina Sandri
- Department of Drug Sciences, University of Pavia viale Taramelli 12 27100 Pavia Italy
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3
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Davidson TA, McGoldrick SJ, Kohn DH. Phage Display to Augment Biomaterial Function. Int J Mol Sci 2020; 21:ijms21175994. [PMID: 32825391 PMCID: PMC7504225 DOI: 10.3390/ijms21175994] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/11/2020] [Accepted: 08/11/2020] [Indexed: 12/15/2022] Open
Abstract
Biomaterial design relies on controlling interactions between materials and their biological environments to modulate the functions of proteins, cells, and tissues. Phage display is a powerful tool that can be used to discover peptide sequences with high affinity for a desired target. When incorporated into biomaterial design, peptides identified via phage display can functionalize material surfaces to control the interaction between a biomaterial and its local microenvironment. A targeting peptide has high specificity for a given target, allowing for homing a specific protein, cell, tissue, or other material to a biomaterial. A functional peptide has an affinity for a given protein, cell, or tissue, but also modulates its target's activity upon binding. Biomaterials can be further enhanced using a combination of targeting and/or functional peptides to create dual-functional peptides for bridging two targets or modulating the behavior of a specific protein or cell. This review will examine current and future applications of phage display for the augmentation of biomaterials.
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Affiliation(s)
- Thomas A. Davidson
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; (T.A.D.); (S.J.M.)
| | - Samantha J. McGoldrick
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; (T.A.D.); (S.J.M.)
| | - David H. Kohn
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; (T.A.D.); (S.J.M.)
- Department of Biologic and Material Sciences, University of Michigan, Ann Arbor, MI 48109, USA
- Correspondence:
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4
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Schulz C, Krüger-Genge A, Jung F, Lendlein A. Aptamer supported in vitro endothelialization of poly(ether imide) films. Clin Hemorheol Microcirc 2020; 75:201-217. [PMID: 31985458 DOI: 10.3233/ch-190775] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Implantation of synthetic small-diameter vascular bypass grafts is often associated with an increased risk of failure, due to thrombotic events or late intimal hyperplasia. As one of the causes an insufficient hemocompatibility of the artificial surface is discussed. Endothelialization of synthetic grafts is reported to be a promising strategy for creating a self-renewing and regulative anti-thrombotic graft surface. However, the establishment of a shear resistant cell monolayer is still challenging. In our study, cyto- and immuno-compatible poly(ether imide) (PEI) films were explored as potential biomaterial for cardiovascular applications. Recently, we reported that the initial adherence of primary human umbilical vein endothelial cells (HUVEC) was delayed on PEI-films and about 9 days were needed to establish a confluent and almost shear resistant HUVEC monolayer. To accelerate the initial adherence of HUVEC, the PEI-film surface was functionalized with an aptamer-cRGD peptide based endothelialization supporting system. With this functionalization the initial adherence as well as the shear resistance of HUVEC on PEI-films was considerable improved compared to the unmodified polymer surface. The in vitro results confirm the general applicability of aptamers for an efficient functionalization of substrate surfaces.
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Affiliation(s)
- Christian Schulz
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Anne Krüger-Genge
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Friedrich Jung
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Helmholtz Virtual Institute - Multifunctional Biomaterials for Medicine, Teltow and Berlin, Germany
| | - Andreas Lendlein
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Helmholtz Virtual Institute - Multifunctional Biomaterials for Medicine, Teltow and Berlin, Germany.,Institute of Chemistry, University of Potsdam, Potsdam, Germany
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5
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Jang TS, Lee JH, Kim S, Park C, Song J, Jae HJ, Kim HE, Chung JW, Jung HD. Ta ion implanted nanoridge-platform for enhanced vascular responses. Biomaterials 2019; 223:119461. [PMID: 31518843 DOI: 10.1016/j.biomaterials.2019.119461] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 08/24/2019] [Accepted: 08/29/2019] [Indexed: 12/26/2022]
Abstract
Bare metal stents are commonly used in interventional cardiology; they provide successful treatment because of their excellent mechanical properties, expandability ratios, and flexibility. However, their insufficient vascular affinity can induce the development of neointimal hyperplasia following arterial injury and subsequent smooth muscle cell overgrowth in the lumen of a stented vessel. Nanoengineering of the bare metal stent surface is a valuable strategy for eliciting favorable vascular responses. In this study, we introduce a target-ion-induced plasma sputtering (TIPS) technique to fabricate a platform with a favorable endothelial environment. This technique enables the simple single-step production of a Ta-implanted nanoridged surface on a stent with a complex 3D geometry that shows a clear tendency to become oriented parallel to the direction of blood flow. Moreover, the nanoridges developed show good structural integrity and mechanical stability, resulting in apparently stable morphologies under high strain rates. In vitro cellular responses to the Co-Cr, such as endothelialization, platelet activation, and blood coagulation, are considerably altered after TIPS treatment; endothelium formation is rapid and surface thrombogenicity is low. An in vivo rabbit iliac artery model is used to confirm that the nanoridged surface facilitates rapid re-endothelialization and limits the formation of neointima compared to the bare stent. These results indicate that the Ta ion implanted nanoridge platform fabricated using the TIPS technique has immense potential as a solution for in-stent restenosis and ensuring the long-term patency of bare metal stents.
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Affiliation(s)
- Tae-Sik Jang
- Research Institute of Advanced Manufacturing Technology, Korea Institute of Industrial Technology, Incheon, 21999, South Korea
| | - Jae Hwan Lee
- Department of Radiology, Seoul National University Bundang Hospital, Seongnam, 13620, South Korea
| | - Sungwon Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, South Korea
| | - Cheonil Park
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, South Korea
| | - Juha Song
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 637457, Singapore
| | - Hwan Jun Jae
- Department of Radiology, Seoul National University College of Medicine, Seoul, 03080, South Korea
| | - Hyoun-Ee Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, South Korea
| | - Jin Wook Chung
- Department of Radiology, Seoul National University College of Medicine, Seoul, 03080, South Korea
| | - Hyun-Do Jung
- Research Institute of Advanced Manufacturing Technology, Korea Institute of Industrial Technology, Incheon, 21999, South Korea.
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6
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Apitius L, Buschmann S, Bergs C, Schönauer D, Jakob F, Pich A, Schwaneberg U. Biadhesive Peptides for Assembling Stainless Steel and Compound Loaded Micro‐Containers. Macromol Biosci 2019; 19:e1900125. [DOI: 10.1002/mabi.201900125] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 06/18/2019] [Indexed: 01/06/2023]
Affiliation(s)
- Lina Apitius
- DWI – Leibniz Institute for Interactive Materials Forckenbeckstrasse 50 52056 Aachen Germany
- Institute of BiotechnologyRWTH Aachen University Worringerweg 3 52074 Aachen Germany
| | - Sven Buschmann
- DWI – Leibniz Institute for Interactive Materials Forckenbeckstrasse 50 52056 Aachen Germany
| | - Christian Bergs
- DWI – Leibniz Institute for Interactive Materials Forckenbeckstrasse 50 52056 Aachen Germany
| | - David Schönauer
- SeSaM‐Biotech GmbH Forckenbeckstrasse 50 52074 Aachen Germany
| | - Felix Jakob
- DWI – Leibniz Institute for Interactive Materials Forckenbeckstrasse 50 52056 Aachen Germany
- Institute of BiotechnologyRWTH Aachen University Worringerweg 3 52074 Aachen Germany
| | - Andrij Pich
- DWI – Leibniz Institute for Interactive Materials Forckenbeckstrasse 50 52056 Aachen Germany
- Functional and Interactive PolymersInstitute of Technical and Macromolecular ChemistryRWTH Aachen University Worringerweg 2 52074 Aachen Germany
| | - Ulrich Schwaneberg
- DWI – Leibniz Institute for Interactive Materials Forckenbeckstrasse 50 52056 Aachen Germany
- Institute of BiotechnologyRWTH Aachen University Worringerweg 3 52074 Aachen Germany
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7
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Li L, Lu H, Zhao Y, Luo J, Yang L, Liu W, He Q. Functionalized cell-free scaffolds for bone defect repair inspired by self-healing of bone fractures: A review and new perspectives. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 98:1241-1251. [PMID: 30813005 DOI: 10.1016/j.msec.2019.01.075] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 12/15/2018] [Accepted: 01/17/2019] [Indexed: 12/20/2022]
Abstract
Studies have demonstrated that scaffolds, a component of bone tissue engineering, play an indispensable role in bone repair. However, these scaffolds involving ex-vivo cultivated cells seeded have disadvantages in clinical practice, such as limited autologous cells, time-consuming cell expansion procedures, low survival rate and immune-rejection issues. To overcome these disadvantages, recent focus has been placed on the design of functionalized cell-free scaffolds, instead of cell-seeded scaffolds, that can reduplicate the natural self-healing events of bone fractures, such as inflammation, cell recruitment, vascularization, and osteogenic differentiation. New approaches and applications in tissue engineering and regenerative medicine continue to drive the development of functionalized cell-free scaffolds for bone repair. In this review, the self-healing processes were highlighted, and approaches for the functionalization were summarized. Also, ongoing efforts and breakthroughs in the field of functionalization for bone defect repair were discussed. Finally, a brief summery and new perspectives for functionalization strategies were presented to provide guidelines for further efforts in the design of bioinspired cell-free scaffolds.
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Affiliation(s)
- Li Li
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China; Orthopedic Department, Southwest Hospital, Army Medical University, Chongqing 400038, PR China; Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China; Orthopedic Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, PR China
| | - Hongwei Lu
- Orthopedic Department, Southwest Hospital, Army Medical University, Chongqing 400038, PR China
| | - Yulan Zhao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China
| | - Jiangming Luo
- Center of Joint Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, PR China
| | - Li Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China
| | - Wanqian Liu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China.
| | - Qingyi He
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, PR China; Orthopedic Department, Southwest Hospital, Army Medical University, Chongqing 400038, PR China; Orthopedic Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, PR China.
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8
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Liu J, Jiang C, Ma X, Feng L, Wang J. Notoginsenoside Fc Accelerates Reendothelialization following Vascular Injury in Diabetic Rats by Promoting Endothelial Cell Autophagy. J Diabetes Res 2019; 2019:9696521. [PMID: 31565658 PMCID: PMC6745117 DOI: 10.1155/2019/9696521] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 05/15/2019] [Accepted: 07/29/2019] [Indexed: 12/11/2022] Open
Abstract
Interventional therapies, such as percutaneous transluminal angioplasty and endovascular stent implantation, are used widely for the treatment of diabetic peripheral vascular complications. Reendothelialization is an essential process in vascular injury following interventional therapy, and hyperglycemia in diabetes mellitus (DM) plays an important role in damaging endothelial layer integrity, leading to the retardance of reendothelialization and excessive neointimal formation. Notoginsenoside Fc (Fc), a novel saponin isolated from Panax notoginseng, effectively counteracts platelet aggregation. Nevertheless, the potential effects and molecular mechanisms of Fc on reendothelialization have yet to be explored. In this study, we present novel findings that show the benefit of Fc in accelerating reendothelialization and alleviating excessive neointimal formation following carotid artery injury in diabetic Sprague-Dawley rats in vivo. Simultaneously, the decreased autophagy of the injured carotid artery in diabetic rats was restored by Fc treatment. Our in vitro results also demonstrated that Fc promoted endothelial cell proliferation and migration under high-glucose treatment by increasing autophagy. In summary, this study supported the notion that Fc could accelerate reendothelialization following vascular injury in diabetic rats by promoting autophagy, suggesting that Fc may exert therapeutic benefits for early endothelial injury and restenosis following intervention in diabetes-associated vascular diseases.
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Affiliation(s)
- Jingjing Liu
- Department of Interventional Radiology, The Sixth People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai 200233, China
| | - Chunyu Jiang
- Department of Interventional Radiology, The Sixth People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai 200233, China
| | - Xu Ma
- Department of Interventional Radiology, The Sixth People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai 200233, China
| | - Lishuai Feng
- Department of Interventional Radiology, The Sixth People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai 200233, China
| | - Jianbo Wang
- Department of Interventional Radiology, The Sixth People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai 200233, China
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9
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Hoesli CA, Tremblay C, Juneau PM, Boulanger MD, Beland AV, Ling SD, Gaillet B, Duchesne C, Ruel J, Laroche G, Garnier A. Dynamics of Endothelial Cell Responses to Laminar Shear Stress on Surfaces Functionalized with Fibronectin-Derived Peptides. ACS Biomater Sci Eng 2018; 4:3779-3791. [DOI: 10.1021/acsbiomaterials.8b00774] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Corinne A. Hoesli
- Department of Chemical Engineering, Faculty of Engineering, McGill University, Wong Building, 3610 University Street, Montréal, Québec H3A 0C5, Canada
- PROTEO Research Center, Québec, Canada
| | - Catherine Tremblay
- Département de Génie Mécanique, Faculté des Sciences et de Génie, Université Laval, Pavillon Adrien-Pouliot, 1065 Avenue de la Médecine, Québec, Québec, G1V 0A6, Canada
| | - Pierre-Marc Juneau
- Département de Génie Chimique, Faculté des Sciences et de Génie, Université Laval, Pavillon Adrien-Pouliot, 1065 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
- PROTEO Research Center, Québec, Canada
| | - Mariève D. Boulanger
- Department of Chemical Engineering, Faculty of Engineering, McGill University, Wong Building, 3610 University Street, Montréal, Québec H3A 0C5, Canada
- Département de Génie Chimique, Faculté des Sciences et de Génie, Université Laval, Pavillon Adrien-Pouliot, 1065 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
- Centre de Recherche sur les Matériaux Avancés, Département de Génie des Mines, De la Métallurgie et des Matériaux, Université Laval, Québec G1V 0A6,Canada
| | - Ariane V. Beland
- Department of Chemical Engineering, Faculty of Engineering, McGill University, Wong Building, 3610 University Street, Montréal, Québec H3A 0C5, Canada
| | - Si Da Ling
- Department of Chemical Engineering, Faculty of Engineering, McGill University, Wong Building, 3610 University Street, Montréal, Québec H3A 0C5, Canada
| | - Bruno Gaillet
- Département de Génie Chimique, Faculté des Sciences et de Génie, Université Laval, Pavillon Adrien-Pouliot, 1065 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
- PROTEO Research Center, Québec, Canada
| | - Carl Duchesne
- Département de Génie Chimique, Faculté des Sciences et de Génie, Université Laval, Pavillon Adrien-Pouliot, 1065 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
| | - Jean Ruel
- Département de Génie Mécanique, Faculté des Sciences et de Génie, Université Laval, Pavillon Adrien-Pouliot, 1065 Avenue de la Médecine, Québec, Québec, G1V 0A6, Canada
| | - Gaétan Laroche
- Centre de Recherche sur les Matériaux Avancés, Département de Génie des Mines, De la Métallurgie et des Matériaux, Université Laval, Québec G1V 0A6,Canada
- Centre de Recherche du CHU de Québec, Hôpital Saint-François d’Assise, 10 rue de l’Espinay, Bureau E0-165Québec, Québec G1L 3L5, Canada
| | - Alain Garnier
- Département de Génie Chimique, Faculté des Sciences et de Génie, Université Laval, Pavillon Adrien-Pouliot, 1065 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
- PROTEO Research Center, Québec, Canada
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10
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Bagheri M, Mohammadi M, Steele TW, Ramezani M. Nanomaterial coatings applied on stent surfaces. Nanomedicine (Lond) 2017; 11:1309-26. [PMID: 27111467 DOI: 10.2217/nnm-2015-0007] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The advent of percutaneous coronary intervention and intravascular stents has revolutionized the field of interventional cardiology. Nonetheless, in-stent restenosis, inflammation and late-stent thrombosis are the major obstacles with currently available stents. In order to enhance the hemocompatibility of stents, advances in the field of nanotechnology allow novel designs of nanoparticles and biomaterials toward localized drug/gene carriers or stent scaffolds. The current review focuses on promising polymers used in the fabrication of newer generations of stents with a short synopsis on atherosclerosis and current commercialized stents, nanotechnology's impact on stent development and recent advancements in stent biomaterials is discussed in context.
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Affiliation(s)
- Mahsa Bagheri
- Shariati Hospital, Mashhad University of Medical Sciences, Mashhad, PO Box 935189-9983, Iran.,Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, PO Box 91775-1365, Iran
| | - Marzieh Mohammadi
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, PO Box 91775-1365, Iran
| | - Terry Wj Steele
- Division of Materials Technology, Materials & Science Engineering, Nanyang Technological University, Singapore
| | - Mohammad Ramezani
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, PO Box 91775-1365, Iran
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11
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Walsh TR, Knecht MR. Biointerface Structural Effects on the Properties and Applications of Bioinspired Peptide-Based Nanomaterials. Chem Rev 2017; 117:12641-12704. [DOI: 10.1021/acs.chemrev.7b00139] [Citation(s) in RCA: 132] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Tiffany R. Walsh
- Institute
for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia
| | - Marc R. Knecht
- Department
of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
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12
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Chen S, Bai B, Lee DJ, Diachina S, Li Y, Wong SW, Wang Z, Tseng HC, Ko CC. Dopaminergic enhancement of cellular adhesion in bone marrow derived mesenchymal stem cells (MSCs). ACTA ACUST UNITED AC 2017; 7. [PMID: 29354319 DOI: 10.4172/2157-7633.1000395] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Dopamine (DA) is a well-known neurotransmitter and critical element in the mussel adhesive protein that has gained increasing attention for its role in cellular growth enhancement in biomaterials, including cellular adhesion improvement. As the mechanism underlying this remains unclear, the objective of this study was to explore the effects of DA on the adhesion properties of bone marrow derived rat mesenchymal stem cells (rMSCs) using an hydroxyapatite gelatin nanocomposite biomaterial and to test whether the effects are mediated through various endogenously expressed DA receptors. Primary rMSCs were pretreated with D1-like antagonist, D2-like antagonist, or a combination of these antagonists followed by treatment with 50 μM DA and cellular adhesion quantification at 0.5, 1, 2 and 4 hours post DA addition. DA was found to increase rMSC adhesion and spreading at the 0.5 hour time-point and the dopaminergic effect on cell adhesion was partially blocked by DA antagonists. In addition, the D1-like and D2-like antagonists appeared to have a similar effect on rMSCs. Immunofluorescent staining indicated that the rMSC spreading area was significantly increased in the DA treated group versus the control group. Treatment of the D1-like DA antagonists with DA revealed that the actin filaments of rMSCs could not connect the membrane with the nucleus. In summary, DA was found to enhance early rMSC adhesion partially via DA receptor activation.
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Affiliation(s)
- Si Chen
- Oral and Craniofacial Health Sciences Research, School of Dentistry, University of North Carolina, CB #7455, Chapel Hill, NC 27599, USA.,Department of Orthodontics, Peking University School and Hospital of Stomatology, PRC
| | - Bing Bai
- Oral and Craniofacial Health Sciences Research, School of Dentistry, University of North Carolina, CB #7455, Chapel Hill, NC 27599, USA.,Department of Prosthodontics, China Medical University School of Stomatology, PRC
| | - Dong Joon Lee
- Oral and Craniofacial Health Sciences Research, School of Dentistry, University of North Carolina, CB #7455, Chapel Hill, NC 27599, USA
| | - Shannon Diachina
- Oral and Craniofacial Health Sciences Research, School of Dentistry, University of North Carolina, CB #7455, Chapel Hill, NC 27599, USA
| | - Yina Li
- Oral and Craniofacial Health Sciences Research, School of Dentistry, University of North Carolina, CB #7455, Chapel Hill, NC 27599, USA
| | - Sing Wai Wong
- Oral and Craniofacial Health Sciences Research, School of Dentistry, University of North Carolina, CB #7455, Chapel Hill, NC 27599, USA
| | - Zhengyan Wang
- Department of Pediatric Dentistry, University of North Carolina at Chapel Hill, NC, USA
| | - Henry C Tseng
- Duke Eye Center and Department of Ophthalmology, Duke University Medical Center, Durham, NC 27710, USA
| | - Ching-Chang Ko
- Oral and Craniofacial Health Sciences Research, School of Dentistry, University of North Carolina, CB #7455, Chapel Hill, NC 27599, USA.,Department of Orthodontics, School of Dentistry, University of North Carolina, CB #7454, Chapel Hill, NC 27599, USA
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13
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Pagel M, Beck-Sickinger AG. Multifunctional biomaterial coatings: synthetic challenges and biological activity. Biol Chem 2017; 398:3-22. [DOI: 10.1515/hsz-2016-0204] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 07/29/2016] [Indexed: 12/19/2022]
Abstract
Abstract
A controlled interaction of materials with their surrounding biological environment is of great interest in many fields. Multifunctional coatings aim to provide simultaneous modulation of several biological signals. They can consist of various combinations of bioactive, and bioinert components as well as of reporter molecules to improve cell-material contacts, prevent infections or to analyze biochemical events on the surface. However, specific immobilization and particular assembly of various active molecules are challenging. Herein, an overview of multifunctional coatings for biomaterials is given, focusing on synthetic strategies and the biological benefits by displaying several motifs.
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14
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Zhang H, Xie L, Deng J, Zhuang W, Luo R, Wang J, Huang N, Wang Y. Stability research on polydopamine and immobilized albumin on 316L stainless steel. Regen Biomater 2016; 3:277-284. [PMID: 27699058 PMCID: PMC5043154 DOI: 10.1093/rb/rbw030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 08/07/2016] [Accepted: 08/08/2016] [Indexed: 12/12/2022] Open
Abstract
In this study, the polydopamine (PDA) film was coated on polished 316Lss and then thermally treated at 150 °C (labeled as PDA-Th150), and the stability of coatings was also investigated. Straining test indicated that PDA-Th150 coating performed better in affording sufficient adherence to 316 L SS substrate. Moreover, both PDA and PDA-Th150 coating suffered slight swelling during immersion in deionized water (pH = 6.5). X-ray photoelectron spectroscopy results showed that during immersion, latent nucleophilic reaction via amines inside PDA coating occurred. This led to an enhanced cross-linking and thus gradually promoted the coating stability. Moreover, larger amount of bovine serum albumin (BSA) was immobilized onto PDA-Th150 coating and performed well in anti-platelet adhesion. A high retention of immobilized BSA was observed even after immersion for 30 days. These tests suggested that PDA was stable enough and performed well in surface functionalization, which might enrich the research and application of PDA.
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Affiliation(s)
- Hao Zhang
- School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Lingxia Xie
- School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Jinchuan Deng
- School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Weihua Zhuang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Rifang Luo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Jin Wang
- School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Nan Huang
- School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
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Colak B, Da Silva JCS, Soares TA, Gautrot JE. Impact of the Molecular Environment on Thiol–Ene Coupling For Biofunctionalization and Conjugation. Bioconjug Chem 2016; 27:2111-23. [DOI: 10.1021/acs.bioconjchem.6b00349] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Julio C. S. Da Silva
- Departament
of Fundamental Chemistry, CCEN, Federal University of Pernambuco, Cidade Universitária, 50670-901, Recife, PE, Brazil
| | - Thereza A. Soares
- Departament
of Fundamental Chemistry, CCEN, Federal University of Pernambuco, Cidade Universitária, 50670-901, Recife, PE, Brazil
- Department
of Chemistry, Umeå University, 90187 Umeå, Sweden
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16
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Yu Y, Wise SG, Celermajer DS, Bilek MMM, Ng MKC. Bioengineering stents with proactive biocompatibility. Interv Cardiol 2015. [DOI: 10.2217/ica.15.46] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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17
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Pacelli S, Manoharan V, Desalvo A, Lomis N, Jodha KS, Prakash S, Paul A. Tailoring biomaterial surface properties to modulate host-implant interactions: implication in cardiovascular and bone therapy. J Mater Chem B 2015; 4:1586-1599. [PMID: 27630769 PMCID: PMC5019489 DOI: 10.1039/c5tb01686j] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Host body response to a foreign medical device plays a critical role in defining its fate post implantation. It is thus important to control host-material interactions by designing innovative implant surfaces. In the recent years, biochemical and topographical features have been explored as main target to produce this new type of bioinert or bioresponsive implants. The review discusses specific biofunctional materials and strategies to achieve a precise control over implant surface properties and presents possible solutions to develop next generation of implants, particularly in the fields of bone and cardiovascular therapy.
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Affiliation(s)
- Settimio Pacelli
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, School of Engineering, University of Kansas, Lawrence, KS, USA
| | - Vijayan Manoharan
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, School of Engineering, University of Kansas, Lawrence, KS, USA
| | - Anna Desalvo
- University of Southampton, School of Medicine, University Road, Southampton SO17 1BJ, United Kingdom
| | - Nikita Lomis
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine, Duff Medical Building, 3775 University Street, McGill University, QC, Canada H3A 2B4
| | - Kartikeya Singh Jodha
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, School of Engineering, University of Kansas, Lawrence, KS, USA
| | - Satya Prakash
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine, Duff Medical Building, 3775 University Street, McGill University, QC, Canada H3A 2B4
| | - Arghya Paul
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, School of Engineering, University of Kansas, Lawrence, KS, USA
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18
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Jang EJ, Bae IH, Park DS, Lee SY, Lim KS, Park JK, Shim JW, Sim DS, Jeong MH. Effect of a novel peptide, WKYMVm- and sirolimus-coated stent on re-endothelialization and anti-restenosis. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:251. [PMID: 26438653 DOI: 10.1007/s10856-015-5585-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Accepted: 09/25/2015] [Indexed: 06/05/2023]
Abstract
The drug-eluting stent still has limitations such as thrombosis and inflammation. These limitations often occur in the absence of endothelialization. This study investigated the effects of WKYMVm- and sirolimus-coated stents on re-endothelialization and anti-restenosis. The WKYMVm peptide, specially synthesized for homing endothelial colony-forming cells, was coated onto a bare-metal stent with hyaluronic acid through a simple dip-coating method (designated HA-Pep). Thereafter, sirolimus was consecutively coated to onto the HA-Pep (designated Pep/SRL). The cellular response to stents by human umbilical-vein endothelial cells and vascular smooth-muscle cells was examined by XTT assay. Stents were implanted into rabbit iliac arteries, isolated 6 weeks post-implantation, and then subjected to histological analysis. The peptide was well attached to the surface of the stents and the sirolimus coating made the surface smooth. The release pattern for sirolimus was similar to that of commercial sirolimus-coated stents (57.2% within 7 days, with further release for up to 28 days). Endothelial-cell proliferation was enhanced in the HA-Pep group after 7 days of culture (38.2 ± 7.62%, compared with controls). On the other hand, the proliferation of smooth-muscle cells was inhibited in the Pep/SRL group after 7 days of culture (40.7 ± 6.71%, compared with controls). In an animal study, the restenosis rates for the Pep/SRL group (13.5 ± 4.50%) and commercial drug-eluting stents (Xience Prime™; 9.2 ± 7.20%) were lower than those for bare-metal stents (25.2 ± 4.52%) and HA-Pep stents (26.9 ± 3.88%). CD31 staining was incomplete for the bare-metal and Xience Prime™ groups. On the other hand, CD31 staining showed a consecutive linear pattern in the HA-Pep and Pep/SRL groups, suggesting that WKYMVm promotes endothelialization. These results indicate that the WKYMVm coating could promote endothelial healing, and consecutive coatings of WKYMVm and sirolimus onto bare-metal stents have a potential role in re-endothelialization and neointimal suppression.
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Affiliation(s)
- Eun-Jae Jang
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, 501-757, Republic of Korea
- Korea Cardiovascular Stent Research Institute, Jangsung, 501-893, Republic of Korea
| | - In-Ho Bae
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, 501-757, Republic of Korea
- Korea Cardiovascular Stent Research Institute, Jangsung, 501-893, Republic of Korea
| | - Dae Sung Park
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, 501-757, Republic of Korea
- Korea Cardiovascular Stent Research Institute, Jangsung, 501-893, Republic of Korea
| | - So-Youn Lee
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, 501-757, Republic of Korea
- Korea Cardiovascular Stent Research Institute, Jangsung, 501-893, Republic of Korea
| | - Kyung Seob Lim
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, 501-757, Republic of Korea
| | - Jun-Kyu Park
- Department of Polymer Science and Engineering, Sunchon National University, Suncheon, 540-950, Republic of Korea
| | - Jae-Won Shim
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, 501-757, Republic of Korea
- Korea Cardiovascular Stent Research Institute, Jangsung, 501-893, Republic of Korea
| | - Doo Sun Sim
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, 501-757, Republic of Korea
- Korea Cardiovascular Stent Research Institute, Jangsung, 501-893, Republic of Korea
- Department of Cardiology, Chonnam National University Hospital, Gwangju, 501-757, Republic of Korea
| | - Myung Ho Jeong
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, 501-757, Republic of Korea.
- Korea Cardiovascular Stent Research Institute, Jangsung, 501-893, Republic of Korea.
- Department of Cardiology, Chonnam National University Hospital, Gwangju, 501-757, Republic of Korea.
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19
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Bastijanic JM, Kligman FL, Marchant RE, Kottke-Marchant K. Dual biofunctional polymer modifications to address endothelialization and smooth muscle cell integration of ePTFE vascular grafts. J Biomed Mater Res A 2015; 104:71-81. [DOI: 10.1002/jbm.a.35541] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 07/10/2015] [Accepted: 07/14/2015] [Indexed: 01/02/2023]
Affiliation(s)
| | - Faina L. Kligman
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic; Cleveland Ohio
| | - Roger E. Marchant
- Department of Biomedical Engineering; Case Western Reserve University; Cleveland Ohio
| | - Kandice Kottke-Marchant
- Department of Biomedical Engineering; Case Western Reserve University; Cleveland Ohio
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic; Cleveland Ohio
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20
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Qi P, Yang Y, Xiong K, Wang J, Tu Q, Yang Z, Wang J, Chen J, Huang N. Multifunctional Plasma-Polymerized Film: Toward Better Anticorrosion Property, Enhanced Cellular Growth Ability, and Attenuated Inflammatory and Histological Responses. ACS Biomater Sci Eng 2015; 1:513-524. [DOI: 10.1021/ab5001595] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Pengkai Qi
- Key Laboratory of Advanced Technology for Materials of Education
Ministry, ‡The Institute of Biomaterials and Surface Engineering, School of
Materials Science and Engineering, and §Laboratory of Biosensing and MicroMechatronics, Southwest Jiaotong University, Chengdu 610031, China
| | - Ying Yang
- Key Laboratory of Advanced Technology for Materials of Education
Ministry, ‡The Institute of Biomaterials and Surface Engineering, School of
Materials Science and Engineering, and §Laboratory of Biosensing and MicroMechatronics, Southwest Jiaotong University, Chengdu 610031, China
| | - Kaiqin Xiong
- Key Laboratory of Advanced Technology for Materials of Education
Ministry, ‡The Institute of Biomaterials and Surface Engineering, School of
Materials Science and Engineering, and §Laboratory of Biosensing and MicroMechatronics, Southwest Jiaotong University, Chengdu 610031, China
| | - Juan Wang
- Key Laboratory of Advanced Technology for Materials of Education
Ministry, ‡The Institute of Biomaterials and Surface Engineering, School of
Materials Science and Engineering, and §Laboratory of Biosensing and MicroMechatronics, Southwest Jiaotong University, Chengdu 610031, China
| | - Qiufen Tu
- Key Laboratory of Advanced Technology for Materials of Education
Ministry, ‡The Institute of Biomaterials and Surface Engineering, School of
Materials Science and Engineering, and §Laboratory of Biosensing and MicroMechatronics, Southwest Jiaotong University, Chengdu 610031, China
| | - Zhilu Yang
- Key Laboratory of Advanced Technology for Materials of Education
Ministry, ‡The Institute of Biomaterials and Surface Engineering, School of
Materials Science and Engineering, and §Laboratory of Biosensing and MicroMechatronics, Southwest Jiaotong University, Chengdu 610031, China
| | - Jin Wang
- Key Laboratory of Advanced Technology for Materials of Education
Ministry, ‡The Institute of Biomaterials and Surface Engineering, School of
Materials Science and Engineering, and §Laboratory of Biosensing and MicroMechatronics, Southwest Jiaotong University, Chengdu 610031, China
| | - Junying Chen
- Key Laboratory of Advanced Technology for Materials of Education
Ministry, ‡The Institute of Biomaterials and Surface Engineering, School of
Materials Science and Engineering, and §Laboratory of Biosensing and MicroMechatronics, Southwest Jiaotong University, Chengdu 610031, China
| | - Nan Huang
- Key Laboratory of Advanced Technology for Materials of Education
Ministry, ‡The Institute of Biomaterials and Surface Engineering, School of
Materials Science and Engineering, and §Laboratory of Biosensing and MicroMechatronics, Southwest Jiaotong University, Chengdu 610031, China
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21
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Nie C, Ma L, Cheng C, Deng J, Zhao C. Nanofibrous heparin and heparin-mimicking multilayers as highly effective endothelialization and antithrombogenic coatings. Biomacromolecules 2015; 16:992-1001. [PMID: 25668587 DOI: 10.1021/bm501882b] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Combining the advantages of the fibrous nanostructure of carbon nanotubes (CNTs) and the bioactivities of heparin/heparin-mimicking polyanions, functional nanofibrous heparin or heparin-mimicking multilayers were constructed on PVDF membrane with highly promoted endothelialization and antithrombogenic activities. Oxidized CNT (oCNT) was first functionalized with water-soluble chitosan (polycation), then enwrapped with heparin or a typical sulfonated heparin-mimicking polymers (poly(sodium 4-styrenesulfonate-co-sodium methacrylate)) to construct the multilayers. Then, the surface-deposited multilayers were constructed via electrostatic layer-by-layer assembly of the functionalized oCNTs. The scanning electron microscope and atom force microscope images confirmed that the coated multilayers exhibited nanofibrous and porous structure. The live/dead cell staining and cell viability assay results indicated that the coated nanofibrous multilayers had excellent compatibility with endothelial cells. The cell morphology observation further confirmed the promotion ability of surface endothelialization due to the coated heparin/heparin-mimicking multilayers. Further systematical evaluation on blood compatibility revealed that the surface heparin/heparin-mimicking multilayer-coated membranes also had significantly improved blood compatibility including restrained platelet adhesion and activation, prolonged blood clotting times, and inhibited activation of coagulation and complement factors. In summary, the proposed nanofibrous multilayers integrated endothelialization and antithrombogenic properties; meanwhile, the heparin-mimicking coating validated comparable performances as heparin coating. Herein, it is expected that the surface coating of nanofibrous multilayers, especially the facilely constructed heparin-mimicking coating, may have great application potential in biomedical fields.
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Affiliation(s)
- Chuanxiong Nie
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University , No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
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22
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Rodda AE, Meagher L, Nisbet DR, Forsythe JS. Specific control of cell–material interactions: Targeting cell receptors using ligand-functionalized polymer substrates. Prog Polym Sci 2014. [DOI: 10.1016/j.progpolymsci.2013.11.006] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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23
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Frendl CM, Tucker SM, Khan NA, Esch MB, Kanduru S, Cao TM, García AJ, King MR, Butcher JT. Endothelial retention and phenotype on carbonized cardiovascular implant surfaces. Biomaterials 2014; 35:7714-23. [PMID: 24952977 DOI: 10.1016/j.biomaterials.2014.05.075] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 05/26/2014] [Indexed: 12/14/2022]
Abstract
Heart valve disease is an increasing clinical burden for which there is no effective treatment outside of prosthetic replacement. Over the last 20 years, clinicians have increasingly preferred the use of biological prosthetics to mechanical valves despite their superior durability because of the lifelong anticoagulation therapy that is required. Mechanical valve surface engineering has largely focused on being as non-thrombogenic as possible, but despite decades of iteration has had insufficient impact on the anticoagulation burden. In this study, we systematically evaluate the potential for endothelialization of the pyrolytic carbon surface used in mechanical valves. We compared adsorbed adhesion ligand type (collagen I, fibronectin, laminin, and purified adhesion domain fragments GFOGER and FN7-10) and concentration on endothelial adhesion rates and adhesion strength on Medtronic-Hall prosthetic valve surfaces. Regardless of ligand type or concentration, endothelial adhesion strengthening was insufficient for their intended ultra-high shear stress environment. We then hypothesized that microfabricated trenches would reduce shear stress to tolerable levels while maintaining endothelial access to the flow stream, thereby promoting a confluent and anticoagulant endothelial monolayer. Computational fluid dynamics simulations predicted an empirical relationship of channel width, depth, and spacing that would maintain interior surface shear stress within tolerable levels. Endothelial cells seeded to confluence in these channels retained a confluent monolayer when exposed to 600 dyn/cm(2) shear stress for 48 h regardless of applied adhesive ligand. Furthermore, sheared EC expressed a mature anti-coagulant profile, including endothelial nitric oxide synthase (eNOS), VE-cadherin, and significantly downregulated plasminogen activator inhibitor-1 (PAI-1). As a final test, channeled pyrolytic carbon surfaces with confluent EC reduced human platelet adhesion 1000-fold over pyrolytic carbon alone. These results advance a promising biohybrid approach to enable active moderation of local coagulative response in mechanical heart valves, which could significantly extend the utility of this important treatment for heart valve disease.
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Affiliation(s)
| | - Scott M Tucker
- Department of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Nadeem A Khan
- Department of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Mandy B Esch
- Department of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Shrinidhi Kanduru
- Department of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Thong M Cao
- Department of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Andrés J García
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Michael R King
- Department of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Jonathan T Butcher
- Department of Biomedical Engineering, Cornell University, Ithaca, NY, USA.
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Kalmar PI, Portugaller RH, Schedlbauer P, Bohlsen D, Deutschmann HA. Placement of hemoparin-coated stents in the iliac arteries: early experience and midterm results in 28 patients. Eur J Radiol 2014; 83:1205-1208. [PMID: 24815747 DOI: 10.1016/j.ejrad.2014.04.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 03/17/2014] [Accepted: 04/01/2014] [Indexed: 11/17/2022]
Abstract
PURPOSE Aim was to determine immediate results and mid-term outcome of the hemoparin-coated (HC) stainless-steel stent (camouflage coating) in the treatment of occlusive lesions of the iliac arteries. MATERIALS AND METHODS Twenty-eight patients were prospectively treated with the use of a HC stent between January 2007 and March 2010. Clinical examination and color-doppler ultrasound were performed at 1, 3, 6 and 12 months, CT angiography (CTA) or MR angiography (MRA) at 12 months. Indication for treatment was a high-grade stenosis of the common iliac and/or external iliac artery. RESULTS Successful placement was achieved in all patients. Significant decrease in translesional pressure gradient (>10 mm Hg) was measured in 27 patients (96%). In one patient, proximal dissection occurred without flow limitation. A minor complication (small access site hematoma) occurred in one patient (4%). Two patients (7%) were lost to follow-up. After 12 months, stent patency in CTA, MRA and ultrasound was 100%. 20 patients (77%) experienced an initial improvement of at least one clinical stage. In one patient (4%), mild intimal hyperplasia without significant stenosis was observed. In three patients (12%), proximal or distal stenosis occurred. A non-significant increase of mean ankle-brachial index (ABI) after treatment was measured (0.85 ± 0.27 vs. 0.75 ± 0.22, respectively; p=0.328). CONCLUSIONS The use of HC stents in patients with iliac artery occlusive disease may lead to a lower rate of intimal hyperplasia and thus to increased patency rates even in heavily calcified vessels. However, large-scale prospective trials have to be performed to evaluate the long-term patency rates of the HC coated stents.
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Affiliation(s)
- Peter I Kalmar
- Medical University of Graz, Department of Radiology, Univ. Hospital Graz, Auenbruggerplatz 9, A-8036 Graz, Austria.
| | - Rupert H Portugaller
- Medical University of Graz, Department of Radiology, Univ. Hospital Graz, Auenbruggerplatz 9, A-8036 Graz, Austria.
| | - Peter Schedlbauer
- Medical University of Graz, Department of Radiology, Univ. Hospital Graz, Auenbruggerplatz 9, A-8036 Graz, Austria.
| | - Dennis Bohlsen
- Medical University of Graz, Department of Radiology, Univ. Hospital Graz, Auenbruggerplatz 9, A-8036 Graz, Austria.
| | - Hannes A Deutschmann
- Medical University of Graz, Department of Radiology, Univ. Hospital Graz, Auenbruggerplatz 9, A-8036 Graz, Austria.
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25
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Kim P, Yuan A, Nam KH, Jiao A, Kim DH. Fabrication of poly(ethylene glycol): gelatin methacrylate composite nanostructures with tunable stiffness and degradation for vascular tissue engineering. Biofabrication 2014; 6:024112. [PMID: 24717683 DOI: 10.1088/1758-5082/6/2/024112] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Although synthetic polymers are desirable in tissue engineering applications for the reproducibility and tunability of their properties, synthetic small diameter vascular grafts lack the capability to endothelialize in vivo. Thus, synthetically fabricated biodegradable tissue scaffolds that reproduce important aspects of the extracellular environment are required to meet the urgent need for improved vascular grafting materials. In this study, we have successfully fabricated well-defined nanopatterned cell culture substrates made of a biodegradable composite hydrogel consisting of poly(ethylene glycol) dimethacrylate (PEGDMA) and gelatin methacrylate (GelMA) by using UV-assisted capillary force lithography. The elasticity and degradation rate of the composite PEG-GelMA nanostructures were tuned by varying the ratios of PEGDMA and GelMA. Human umbilical vein endothelial cells (HUVECs) cultured on nanopatterned PEG-GelMA substrates exhibited enhanced cell attachment compared with those cultured on unpatterned PEG-GelMA substrates. Additionally, HUVECs cultured on nanopatterned PEG-GelM substrates displayed well-aligned, elongated morphology similar to that of native vascular endothelial cells and demonstrated rapid and directionally persistent migration. The ability to alter both substrate stiffness and degradation rate and culture endothelial cells with increased elongation and alignment is a promising next step in recapitulating the properties of native human vascular tissue for tissue engineering applications.
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Affiliation(s)
- Peter Kim
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
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26
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Rechenmacher F, Steigerwald K, Laufer B, Neubauer S, Kapp TG, Li L, Mas-Moruno C, Joner M, Kessler H. The Integrin Ligandc(RGDf(NMe)Nal) Reduces Neointimal Hyperplasia in a Polymer-Free Drug-Eluting Stent System. ChemMedChem 2014; 9:1413-8. [DOI: 10.1002/cmdc.201400078] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Indexed: 01/28/2023]
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27
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D'Onofrio N, Caraglia M, Grimaldi A, Marfella R, Servillo L, Paolisso G, Balestrieri ML. Vascular-homing peptides for targeted drug delivery and molecular imaging: meeting the clinical challenges. Biochim Biophys Acta Rev Cancer 2014; 1846:1-12. [PMID: 24704283 DOI: 10.1016/j.bbcan.2014.03.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 03/20/2014] [Accepted: 03/22/2014] [Indexed: 12/12/2022]
Abstract
The vasculature of each organ expresses distinct molecular signatures critically influenced by the pathological status. The heterogeneous profile of the vascular beds has been successfully unveiled by the in vivo phage display, a high-throughput tool for mapping normal, diseased, and tumor vasculature. Specific challenges of this growing field are targeted therapies against cancer and cardiovascular diseases, as well as novel bioimaging diagnostic tools. Tumor vasculature-homing peptides have been extensively evaluated in several preclinical and clinical studies both as targeted-therapy and diagnosis. To date, results from several Phase I and II trials have been reported and many other trials are currently ongoing or recruiting patients. In this review, advances in the identification of novel peptide ligands and their corresponding receptors on tumor endothelium through the in vivo phage display technology are discussed. Emphasis is given to recent findings in the clinical setting of vascular-homing peptides selected by in vivo phage display for the treatment of advanced malignancies and their altered vascular beds.
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Affiliation(s)
- Nunzia D'Onofrio
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, via L. de Crecchio 7, 80138 Naples, Italy
| | - Michele Caraglia
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, via L. de Crecchio 7, 80138 Naples, Italy
| | - Anna Grimaldi
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, via L. de Crecchio 7, 80138 Naples, Italy
| | - Raffaele Marfella
- Department of Geriatrics and Metabolic Diseases, Second University of Naples, Piazza Miraglia 2, 80138 Naples, Italy
| | - Luigi Servillo
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, via L. de Crecchio 7, 80138 Naples, Italy
| | - Giuseppe Paolisso
- Department of Geriatrics and Metabolic Diseases, Second University of Naples, Piazza Miraglia 2, 80138 Naples, Italy
| | - Maria Luisa Balestrieri
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, via L. de Crecchio 7, 80138 Naples, Italy.
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28
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Effects of polydopamine functionalized titanium dioxide nanotubes on endothelial cell and smooth muscle cell. Colloids Surf B Biointerfaces 2014; 116:553-60. [PMID: 24637093 DOI: 10.1016/j.colsurfb.2014.01.030] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 12/04/2013] [Accepted: 01/21/2014] [Indexed: 11/21/2022]
Abstract
Previous investigations have demonstrated that TiO2 nanotubes (NTs) with particular structure cues could control the behavior of different types of cells, including endothelial cells (ECs) and smooth muscle cells (SMCs). Besides, polydopamine (PDA) modified surfaces were reported to be beneficial to increase the proliferation and viability of ECs and meanwhile could inhibit the proliferation of SMCs. The TiO2 nanotubes (NTs) were functionalized with polydopamine (PDA) (PDA/NTs) to study the synergetic effect of both nanotopography (NTs) and chemical cues (PDA) of TiO2 nanotubes on the regulation of cellular behavior of ECs and SMCs. The PDA-modified TiO2 nanotubes were subjected to field-emission scanning electron microscopy (FE-SEM), X-ray photoelectron spectroscopy (XPS), and water contact angle (WCA) analysis. In vitro cell culture tests confirmed that, comparing with flat titanium (Ti) and TiO2 nanotubes, PDA/NTs surface synergistically promoted ECs attachment, proliferation, migration and release of nitric oxide (NO). Meanwhile, the PDA/NTs performed well in reducing SMCs adhesion and proliferation. This novel approach might provide a new platform to investigate the synergistic effect of local chemistry and topography, as well as the applications for the development of titanium-based implants for enhanced endothelialization.
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29
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Dudash LA, Kligman FL, Bastijanic JM, Kottke-Marchant K, Marchant RE. Cross-reactivity of cell-selective CRRETAWAC peptide with human and porcine endothelial cells. J Biomed Mater Res A 2013; 102:2857-63. [PMID: 24123752 DOI: 10.1002/jbm.a.34960] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 08/21/2013] [Accepted: 09/11/2013] [Indexed: 11/07/2022]
Abstract
We report on the cross-reactivity of the cell adhesive peptide CRRETAWAC between human and porcine endothelial cells (ECs). CRRETAWAC is a phage display derived peptide which has been shown to bind the α5 β1 receptor on human ECs, but does not bind platelets and thus could be incorporated into a coating for cardiovascular biomaterials that resists platelet adhesion and thrombosis, while allowing for endothelialization. To determine the cross-reactivity of the peptide, attachment and growth of human and porcine ECs on CRRETAWAC fluorosurfactant polymer (FSP) coated surfaces was explored. CRRETAWAC FSP was synthesized and characterized by mass spectrometry, NMR, and IR spectroscopy. pEC attachment and growth on CRRETAWAC FSP was similar to the positive controls, human fibronectin and RGD FSP, achieving confluence in 72 h. Initial adhesion on CRRETAWAC FSP was also similar for porcine and human ECs. Blocking with soluble CRRETAWAC peptide reduced adhesion to CRRETAWAC coated surfaces by over 50%, indicating that the pECs specifically bind CRRETAWAC peptide. With this study, we have demonstrated that CRRETAWAC peptide coated surfaces are capable of binding porcine ECs in a specific manner and supporting a confluent layer of pECs. In vitro validation of the porcine model was critical for ensuring the best chance of success for the in vivo testing of CRRETAWAC coated ePTFE vascular grafts.
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Affiliation(s)
- Lynn A Dudash
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, 44106
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30
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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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31
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Surface engineering of cardiovascular stent with endothelial cell selectivity for in vivo re-endothelialisation. Biomaterials 2013; 34:2588-99. [DOI: 10.1016/j.biomaterials.2012.12.036] [Citation(s) in RCA: 157] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Accepted: 12/29/2012] [Indexed: 01/26/2023]
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32
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Luo R, Tang L, Zhong S, Yang Z, Wang J, Weng Y, Tu Q, Jiang C, Huang N. In vitro investigation of enhanced hemocompatibility and endothelial cell proliferation associated with quinone-rich polydopamine coating. ACS APPLIED MATERIALS & INTERFACES 2013; 5:1704-1714. [PMID: 23384031 DOI: 10.1021/am3027635] [Citation(s) in RCA: 136] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Recent investigations have demonstrated that polydopamine (PDA)-modified surfaces were beneficial to the proliferation of endothelial cells (ECs). In this work, PDA coated 316L stainless steels (316L SS) were thermally treated at 50, 100, and 150 °C respectively (hereafter designated as Th50, Th100, and Th150) and consequently produced diverse surface chemical components. In vitro hemocompatibility and vascular cell-material interactions with ECs and smooth muscle cells (SMCs) affected by surface characteristics have been investigated. The Th150, rich in quinone, showed the best hemocompatibility and could effectively inhibit platelet adhesion, activation, and fibrinogen conformation transition. The polydopamine-modified surfaces were found to induce dramatic cell-material interaction with enhanced ECs proliferation, viability and migration, release of nitric oxide (NO), and reduced SMCs proliferation. The inhibitory effect of SMCs proliferation might be associated with the surface catechol content. The coating on Th150 showed a good resistance to the deformation of compression and expansion of vascular stents. These results effectively suggested that the Th150 coating might be promising when served as a stent coating platform.
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Affiliation(s)
- Rifang Luo
- Key Lab of Advanced Technology of Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China
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Wang JL, Ren KF, Chang H, Jia F, Li BC, Ji Y, Ji J. Direct Adhesion of Endothelial Cells to Bioinspired Poly(dopamine) Coating Through Endogenous Fibronectin and Integrin α5
β1. Macromol Biosci 2013; 13:483-93. [DOI: 10.1002/mabi.201200390] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Revised: 11/21/2012] [Indexed: 11/09/2022]
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34
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Tan A, Farhatnia Y, de Mel A, Rajadas J, Alavijeh MS, Seifalian AM. Inception to actualization: Next generation coronary stent coatings incorporating nanotechnology. J Biotechnol 2013; 164:151-70. [DOI: 10.1016/j.jbiotec.2013.01.020] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2012] [Revised: 01/09/2013] [Accepted: 01/11/2013] [Indexed: 02/07/2023]
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35
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Kang CK, Lim WH, Kyeong S, Choe WS, Kim HS, Jun BH, Lee YS. Fabrication of biofunctional stents with endothelial progenitor cell specificity for vascular re-endothelialization. Colloids Surf B Biointerfaces 2013; 102:744-51. [DOI: 10.1016/j.colsurfb.2012.09.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Accepted: 09/05/2012] [Indexed: 02/01/2023]
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36
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Nie N, Tu Q, Wang JC, Chao F, Liu R, Zhang Y, Liu W, Wang J. Synthesis of copolymers using dendronized polyethylene glycol and assay of their blood compatibility and antibacterial adhesion activity. Colloids Surf B Biointerfaces 2012; 97:226-35. [DOI: 10.1016/j.colsurfb.2012.04.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Revised: 03/30/2012] [Accepted: 04/06/2012] [Indexed: 11/26/2022]
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37
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Tan A, Alavijeh MS, Seifalian AM. Next generation stent coatings: convergence of biotechnology and nanotechnology. Trends Biotechnol 2012; 30:406-9. [PMID: 22762967 DOI: 10.1016/j.tibtech.2012.05.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Revised: 05/05/2012] [Accepted: 05/08/2012] [Indexed: 11/28/2022]
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Endothelialization and patency of RGD-functionalized vascular grafts in a rabbit carotid artery model. Biomaterials 2012; 33:2880-91. [DOI: 10.1016/j.biomaterials.2011.12.047] [Citation(s) in RCA: 236] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Accepted: 12/26/2011] [Indexed: 01/22/2023]
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39
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Meyers SR, Grinstaff MW. Biocompatible and bioactive surface modifications for prolonged in vivo efficacy. Chem Rev 2012; 112:1615-32. [PMID: 22007787 PMCID: PMC3878818 DOI: 10.1021/cr2000916] [Citation(s) in RCA: 165] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Steven R. Meyers
- Departments of Biomedical Engineering and Chemistry, Boston University, Boston, MA 02215, USA
| | - Mark W. Grinstaff
- Departments of Biomedical Engineering and Chemistry, Boston University, Boston, MA 02215, USA
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Abstract
The techniques and materials used during percutaneous coronary intervention have advanced considerably over the past 3 decades, yet restenosis remains one of the major drawbacks of this procedure. Many innovative technologies, including drug-eluting stents, with or without specific polymers, and fully biodegradable stents have been and continue to be developed in the search for a safe and effective antirestenosis therapy. Remarkable advances in stent design and nanoparticle delivery systems ('nanovehicles') have already fueled revolutionary changes in the prevention and treatment of in-stent restenosis. In this Review we provide an overview of the latest innovations for optimizing outcomes of coronary stenting, and up-to-date information about prevention and treatment of in-stent restenosis.
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