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Wang C, Fang H, Qi X, Hang C, Sun Y, Peng Z, Wei W, Wang Y. Silk fibroin film-coated MgZnCa alloy with enhanced in vitro and in vivo performance prepared using surface activation. Acta Biomater 2019; 91:99-111. [PMID: 31028907 DOI: 10.1016/j.actbio.2019.04.048] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 04/11/2019] [Accepted: 04/22/2019] [Indexed: 10/26/2022]
Abstract
Magnesium and its alloys have generated considerable interest as one of the most promising biodegradable metals for biomedical bone implants. However, the enormous challenges are to improve their rapid corrosion excessively as well as to endow them with biocompatibility and biosafety. Herein, we introduce a natural silk fibroin protein coating to control the corrosion resistance and enhance the biocompatibility of MgZnCa alloy. To obtain a robust and reliable coated structure, different surface-activation processes are employed to increase the available functional groups on MgZnCa surfaces before coating. Compared to oxygen plasma activation, our unique vacuum ultraviolet-ozone (VUV/O3) activation method is effective in realizing uniform silk fibroin films as a protective barrier on MgZnCa alloy surfaces, and the nanoscratch test verified the superior adhesion strength of the silk fibroin-coated magnesium alloy structure. Long-term immersion results combined with electrochemical tests showed the preferable in vitro anticorrosion behavior and a low degradation rate of coated Mg alloy (1/8 times that of uncoated Mg alloy). Cell adhesion and cytotoxicity tests demonstrated that silk fibroin-coated MgZnCa presented improved biocompatibility with bone marrow mesenchymal stem cells. An animal study involving silk fibroin-coated MgZnCa implanted on one side of a rabbit spine for 180 days showed remarkably improved in vivo corrosion resistance, with 1/18 times the degradation rate of uncoated MgZnCa. These results not only comprehensively confirmed the validity of the VUV/O3-activation method as a coating strategy but also implied the tremendous potential of the modified Mg alloy for application as a degradable biomedical implant material. STATEMENT OF SIGNIFICANCE: MgZnCa alloy is a promising material in clinical implantation. Silk fibroin (SF) is a natural organic material with biocompatibility and biodegradability. To date, the combination of SF and MgZnCa alloy has exhibited considerable prospects for orthopedic applications. The realization of a direct coating is an enormous challenge because strong chemical bonds cannot be easily formed between organic and inorganic materials. To solve this bottleneck, we proposed a unique vacuum ultraviolet-ozone (VUV/O3) surface-activation method for the first time to modify the Mg alloy surface before SF coating, which significantly enhanced both in vitro and in vivo performance, such as superior biocompatibility and remarkably improved corrosion resistance of magnesium alloys (∼1/18 the in vivo degradation rate of uncoated MgZnCa).
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Maruf A, Wang Y, Yin T, Huang J, Wang N, Durkan C, Tan Y, Wu W, Wang G. Atherosclerosis Treatment with Stimuli-Responsive Nanoagents: Recent Advances and Future Perspectives. Adv Healthc Mater 2019; 8:e1900036. [PMID: 30945462 DOI: 10.1002/adhm.201900036] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/06/2019] [Indexed: 01/04/2023]
Abstract
Atherosclerosis is the root of approximately one-third of global mortalities. Nanotechnology exhibits splendid prospects to combat atherosclerosis at the molecular level by engineering smart nanoagents with versatile functionalizations. Significant advances in nanoengineering enable nanoagents to autonomously navigate in the bloodstream, escape from biological barriers, and assemble with their nanocohort at the targeted lesion. The assembly of nanoagents with endogenous and exogenous stimuli breaks down their shells, facilitates intracellular delivery, releases their cargo to kill the corrupt cells, and gives imaging reports. All these improvements pave the way toward personalized medicine for atherosclerosis. This review systematically summarizes the recent advances in stimuli-responsive nanoagents for atherosclerosis management and its progress in clinical trials.
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Affiliation(s)
- Ali Maruf
- Key Laboratory for Biorheological Science and Technology of Ministry of EducationState and Local Joint Engineering Laboratory for Vascular ImplantsBioengineering College of Chongqing University Chongqing 400030 China
| | - Yi Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of EducationState and Local Joint Engineering Laboratory for Vascular ImplantsBioengineering College of Chongqing University Chongqing 400030 China
| | - Tieyin Yin
- Key Laboratory for Biorheological Science and Technology of Ministry of EducationState and Local Joint Engineering Laboratory for Vascular ImplantsBioengineering College of Chongqing University Chongqing 400030 China
| | - Junli Huang
- Key Laboratory for Biorheological Science and Technology of Ministry of EducationState and Local Joint Engineering Laboratory for Vascular ImplantsBioengineering College of Chongqing University Chongqing 400030 China
| | - Nan Wang
- The Nanoscience CentreUniversity of Cambridge Cambridge CB3 0FF UK
| | - Colm Durkan
- The Nanoscience CentreUniversity of Cambridge Cambridge CB3 0FF UK
| | - Youhua Tan
- Department of Biomedical EngineeringThe Hong Kong Polytechnic University Hong Kong SAR 999077 China
| | - Wei Wu
- Key Laboratory for Biorheological Science and Technology of Ministry of EducationState and Local Joint Engineering Laboratory for Vascular ImplantsBioengineering College of Chongqing University Chongqing 400030 China
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of EducationState and Local Joint Engineering Laboratory for Vascular ImplantsBioengineering College of Chongqing University Chongqing 400030 China
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Katagiri Y, Serruys PW, Asano T, Miyazaki Y, Chichareon P, Modolo R, Takahashi K, Kogame N, Wykrzykowska JJ, Piek JJ, Onuma Y. How does the failure of Absorb apply to the other bioresorbable scaffolds? An expert review of first-in-man and pivotal trials. EUROINTERVENTION 2019; 15:116-123. [DOI: 10.4244/eij-d-18-00607] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Delattre C, Velazquez D, Roques C, Pavon-Djavid G, Ollivier V, Lokajczyk A, Avramoglou T, Gueguen V, Louedec L, Caligiuri G, Jandrot-Perrus M, Boisson-Vidal C, Letourneur D, Meddahi-Pelle A. In vitro and in vivo evaluation of a dextran-graft-polybutylmethacrylate copolymer coated on CoCr metallic stent. ACTA ACUST UNITED AC 2019; 9:25-36. [PMID: 30788257 PMCID: PMC6378099 DOI: 10.15171/bi.2019.04] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 09/17/2018] [Accepted: 09/24/2018] [Indexed: 02/06/2023]
Abstract
Introduction: The major complications of stent implantation are restenosis and late stent thrombosis. PBMA polymers are used for stent coating because of their mechanical properties. We previously synthesized and characterized Dextrangraft-polybutylmethacrylate copolymer (Dex-PBMA) as a potential stent coating. In this study, we evaluated the haemocompatibility and biocompatibility properties of Dex-PBMA in vitro and in vivo. Methods: Here, we investigated: (1) the effectiveness of polymer coating under physiological conditions and its ability to release Tacrolimus®, (2) the capacity of Dex-PBMA to inhibit Staphylococcus aureus adhesion, (3) the thrombin generation and the human platelet adhesion in static and dynamic conditions, (4) the biocompatibility properties in vitro on human endothelial colony forming cells ( ECFC) and on mesenchymal stem cells (MSC) and in vivo in rat models, and (5) we implanted Dex-PBMA and Dex-PBMATAC coated stents in neointimal hyperplasia restenosis rabbit model. Results: Dex-PBMA coating efficiently prevented bacterial adhesion and release Tacrolimus®. Dex-PBMA exhibit haemocompatibility properties under flow and ECFC and MSC compatibility. In vivo, no pathological foreign body reaction was observed neither after intramuscular nor intravascular aortic implantation. After Dex-PBMA and Dex-PBMATAC coated stents 30 days implantation in a restenosis rabbit model, an endothelial cell coverage was observed and the lumen patency was preserved. Conclusion: Based on our findings, Dex-PBMA exhibited vascular compatibility and can potentially be used as a coating for metallic coronary stents.
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Affiliation(s)
- Cécilia Delattre
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat
| | - Diego Velazquez
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat
| | - Caroline Roques
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Graciela Pavon-Djavid
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Véronique Ollivier
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Anna Lokajczyk
- Inserm UMR_S1140, Paris France.,Université Paris Descartes, Sorbonne Paris Cité, France
| | - Thierry Avramoglou
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Virginie Gueguen
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Liliane Louedec
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Giuseppina Caligiuri
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Martine Jandrot-Perrus
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | | | - Didier Letourneur
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
| | - Anne Meddahi-Pelle
- INSERM, UMR_S1148, Laboratory for Vascular Translational Sciences, Hôpital Bichat.,Université Paris 13, Sorbonne Paris Cité, France
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Tan KX, Pan S, Jeevanandam J, Danquah MK. Cardiovascular therapies utilizing targeted delivery of nanomedicines and aptamers. Int J Pharm 2019; 558:413-425. [PMID: 30660748 DOI: 10.1016/j.ijpharm.2019.01.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 01/03/2019] [Accepted: 01/05/2019] [Indexed: 01/01/2023]
Abstract
Cardiovascular ailments are the foremost trigger of death in the world today, including myocardial infarction and ischemic heart diseases. To date, extraordinary measures have been prescribed, from the perspectives of both conventional medical therapies and surgeries, to enforce cardiac cell regeneration post cardiac traumas, albeit with limited long-term success. The prospects of successful heart transplants are also grim, considering exorbitant costs and unavailability of suitable donors in most cases. From the perspective of cardiac revascularization, use of nanoparticles and nanoparticle mediated targeted drug delivery have garnered substantial attention, attributing to both active and passive heart targeting, with enhanced target specificity and sensitivity. This review focuses on this aspect, while outlining the progress in targeted delivery of nanomedicines in the prognosis and subsequent therapy of cardiovascular disorders, and recapitulating the benefits and intrinsic challenges associated with the incorporation of nanoparticles. This article categorically provides an overview of nanoparticle-mediated targeted delivery systems and their implications in handling cardiovascular diseases, including their intrinsic benefits and encountered procedural trials and challenges. Additionally, the solicitations of aptamers in targeted drug delivery with identical objectives, are presented. This includes a detailed appraisal on various aptamer-navigated nanoparticle targeted delivery platforms in the diagnosis and treatment of cardiovascular maladies. Despite a few impending challenges, subject to additional investigations, both nanoparticles as well as aptamers show a high degree of promise, and pose as the next generation of drug delivery vehicles, in targeted cardiovascular therapy.
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Affiliation(s)
- Kei Xian Tan
- Department of Chemical Engineering, Curtin University of Technology, 98009 Sarawak, Malaysia.
| | - Sharadwata Pan
- School of Life Sciences Weihenstephan, Technical University of Munich, 85354 Freising, Germany.
| | - Jaison Jeevanandam
- Department of Chemical Engineering, Curtin University of Technology, 98009 Sarawak, Malaysia.
| | - Michael K Danquah
- Department of Chemical Engineering, University of Tennessee, Chattanooga, TN 37403, United States.
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Englert C, Brendel JC, Majdanski TC, Yildirim T, Schubert S, Gottschaldt M, Windhab N, Schubert US. Pharmapolymers in the 21st century: Synthetic polymers in drug delivery applications. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.07.005] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Lin S, Ran X, Yan X, Yan W, Wang Q, Yin T, Zhou JG, Hu T, Wang G. Corrosion behavior and biocompatibility evaluation of a novel zinc-based alloy stent in rabbit carotid artery model. J Biomed Mater Res B Appl Biomater 2018; 107:1814-1823. [PMID: 30408310 DOI: 10.1002/jbm.b.34274] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 08/21/2018] [Accepted: 10/07/2018] [Indexed: 02/06/2023]
Abstract
Zinc (Zn) and its alloys have been proved to be promising candidate materials for biodegradable cardiovascular stents. In this study, a novel extruded Zn-0.02 Mg-0.02Cu alloy was prepared. Compared with pure Zn, the Zn-based alloy showed higher mechanical properties, and the Zn-based alloy could significantly accelerate Zn2+ release, reaching 0.61 ± 0.11 μg/mL at 15 days of immersion. In vitro biocompatibility studies demonstrated that the Zn-based alloy had excellent cytocompatibility and hemocompatibility, including low hemolysis rate (0.63 ± 0.12%) and strong inhibitory effect on platelet adhesion. Subsequently, the Zn-based alloy stent was implanted into the left carotid arteries of New Zealand white rabbits for 12 months. All the rabbits survived without any adverse clinical events, and all the stented arteries were patent during the study period. Rapid endothelialization at 1 week of implantation was observed, suggesting a low cytotoxicity and thrombosis risk. The stent corroded slowly and no obvious intimal hyperplasia was observed for 6 months, after which corrosion accelerated at 12 months. In addition, no obvious thrombosis and systemic toxicity during implantation period were observed, indicating its potential as the backbone of biodegradable cardiovascular stents. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 1814-1823, 2019.
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Affiliation(s)
- Song Lin
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China
| | - Xiaolin Ran
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China
| | - Xinhao Yan
- Xi'an Advanced Medical Technology Co., Ltd, Xi'an, 710000, China
| | - Wenhua Yan
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China
| | - Qilong Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China
| | - Tieying Yin
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China
| | - Jack G Zhou
- Xi'an Advanced Medical Technology Co., Ltd, Xi'an, 710000, China
| | - Tingzhang Hu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China
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Biodegradable stents for coronary artery disease treatment: Recent advances and future perspectives. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:163-178. [DOI: 10.1016/j.msec.2018.04.100] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 04/11/2018] [Accepted: 04/28/2018] [Indexed: 12/24/2022]
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Jelonek K, Jaworska J, Pastusiak M, Sobota M, Włodarczyk J, Karpeta-Jarzabek P, Kaczmarczyk B, Kasperczyk J, Dobrzyński P. Effect of vascular scaffold composition on release of sirolimus. Eur J Pharm Biopharm 2018; 132:41-49. [PMID: 30179737 DOI: 10.1016/j.ejpb.2018.08.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 08/31/2018] [Accepted: 08/31/2018] [Indexed: 11/25/2022]
Abstract
Despite extensive development of bioresorbable drug-eluting vascular scaffolds it is still challenging to achieve controlled drug delivery. The lack of capacity for adjusting the drug dose and inadequate release behavior are one of the main reasons of the side effects. However, so far, mainly biodegradable drug-eluting coatings of metallic stents have been studied in regard to explain drug release mechanisms. The objective of this study was to develop degradable polymer coatings applicable to bioresorbable polymer-based scaffolds. Moreover, a detailed analysis of sirolimus release and scaffold degradation has been conducted. Coating layers of the same composition were applied by the same method on the surface of two different kinds of scaffolds in order to explain the effect of scaffold structure on release process. The developed coatings showed controlled release of antiproliferative agent with elimination of burst effect. However, differences in drug release profile from two kinds of scaffolds were observed. Scaffold composed of polymer with higher lactide content showed slower and bi-phasic, erosion-controlled release of sirolimus. On the contrary, sirolimus release from scaffold composed of polymer with lower content of lactide was mainly controlled by diffusion. These results demonstrate that characteristics of scaffold is another crucial factor that must be considered in further development of bioresorbable vascular scaffolds (BRS) with controlled release of antiproliferative agent.
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Affiliation(s)
- Katarzyna Jelonek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Curie-Sklodowska 34 St., 41-819 Zabrze, Poland.
| | - Joanna Jaworska
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Curie-Sklodowska 34 St., 41-819 Zabrze, Poland
| | - Małgorzata Pastusiak
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Curie-Sklodowska 34 St., 41-819 Zabrze, Poland
| | - Michał Sobota
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Curie-Sklodowska 34 St., 41-819 Zabrze, Poland
| | - Jakub Włodarczyk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Curie-Sklodowska 34 St., 41-819 Zabrze, Poland
| | - Paulina Karpeta-Jarzabek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Curie-Sklodowska 34 St., 41-819 Zabrze, Poland
| | - Bożena Kaczmarczyk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Curie-Sklodowska 34 St., 41-819 Zabrze, Poland
| | - Janusz Kasperczyk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Curie-Sklodowska 34 St., 41-819 Zabrze, Poland; School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland, Chair and Department of Biopharmacy, Jedności 8, Sosnowiec, Poland
| | - Piotr Dobrzyński
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Curie-Sklodowska 34 St., 41-819 Zabrze, Poland; Faculty of Mathematics and Natural Sciences, Jan Dlugosz University, Armii Krajowej 13/15, 42-218 Czestochowa, Poland
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Borhani S, Hassanajili S, Ahmadi Tafti SH, Rabbani S. Cardiovascular stents: overview, evolution, and next generation. Prog Biomater 2018; 7:175-205. [PMID: 30203125 PMCID: PMC6173682 DOI: 10.1007/s40204-018-0097-y] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 08/25/2018] [Indexed: 12/01/2022] Open
Abstract
Compared to bare-metal stents (BMSs), drug-eluting stents (DESs) have been regarded as a revolutionary change in coronary artery diseases (CADs). Releasing pharmaceutical agents from the stent surface was a promising progress in the realm of cardiovascular stents. Despite supreme advantages over BMSs, in-stent restenosis (ISR) and long-term safety of DESs are still deemed ongoing concerns over clinically application of DESs. The failure of DESs for long-term clinical use is associated with following factors including permanent polymeric coating materials, metallic stent platforms, non-optimal drug releasing condition, and factors that have recently been supposed as contributory factors such as degradation products of polymers, metal ions due to erosion and degradation of metals and their alloys utilizing in some stents as metal frameworks. Discovering the direct relation between stent materials and associating adverse effects is a complicated process, and yet it has not been resolved. For clinical success it is of significant importance to optimize DES design and explore novel strategies to overcome all problems including inflammatory response, delay endothelialization, and sub-acute stent thrombosis (ST) simultaneously. In this work, scientific reports are reviewed particularly focusing on recent advancements in DES design which covers both potential improvements of existing and recently novel prototype stent fabrications. Covering a wide range of information from the BMSs to recent advancement, this study mostly sheds light on DES's concepts, namely stent composition, drug release mechanism, and coating techniques. This review further reports different forms of DES including fully biodegradable DESs, shape-memory ones, and polymer-free DESs.
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Affiliation(s)
- Setareh Borhani
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran
| | - Shadi Hassanajili
- Department of Nanochemical Engineering, School of New Science and Technology, Shiraz University, Shiraz, Iran.
| | - Seyed Hossein Ahmadi Tafti
- Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, Tehran University of Medical Sciences, North Kargar, Tehran, Iran
| | - Shahram Rabbani
- Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, Tehran University of Medical Sciences, North Kargar, Tehran, Iran
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Zhao Y, Du R, Zhou T, Yang D, Huang Y, Wang Y, Huang J, Ma X, He F, Qiu J, Wang G. Arsenic Trioxide-Coated Stent Is an Endothelium-Friendly Drug Eluting Stent. Adv Healthc Mater 2018; 7:e1800207. [PMID: 29770610 DOI: 10.1002/adhm.201800207] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 03/29/2018] [Indexed: 12/14/2022]
Abstract
An ideal vascular stent would both inhibit in-stent restenosis (ISR) and promote rapid re-endothelialization. In the current study, the performance of arsenic trioxide (ATO)-drug eluting stent (AES) is compared with the bare metal stent, poly-lactic-co-glycolic acid-coating metal stent, and rapamycin-drug eluting stent (RES). In vivo AES is shown to prevent neointimal hyperplasia more efficiently than the others when implanted into the carotid arteries of rabbits. Moreover, AES promotes endothelial cells proliferation and re-endothelialization more quickly than RES. In vitro ATO exposure significantly increases the viability, proliferation, adhesion, and spreading of primary porcine coronary artery endothelial cells (PCAECs), which are critical for endothelialization. However, ATO exposure reduces the viability of porcine coronary artery smooth muscle cells (PCASMCs). The evaluation of mitochondrial morphology, membrane potential, and function demonstrates that ATO at 2 µmol L-1 causes enlargement of the mitochondrion, enhancement of mitochondrial membrane potential, and adenosine triphosphate (ATP) production in PCAECs but not in PCASMCs. Thus, both in vivo and in vitro studies demonstrate that AES is an effective strategy for rapid re-endothelialization and inhibition of ISR.
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Affiliation(s)
- Yinping Zhao
- Key Laboratory for Biorheological Science and Technology of Ministry of Education; State and Local Joint Engineering Laboratory for Vascular Implants; Bioengineering College of Chongqing University; Chongqing 400030 China
| | - Ruolin Du
- Key Laboratory for Biorheological Science and Technology of Ministry of Education; State and Local Joint Engineering Laboratory for Vascular Implants; Bioengineering College of Chongqing University; Chongqing 400030 China
| | - Tian Zhou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education; State and Local Joint Engineering Laboratory for Vascular Implants; Bioengineering College of Chongqing University; Chongqing 400030 China
| | - Dongchuan Yang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education; State and Local Joint Engineering Laboratory for Vascular Implants; Bioengineering College of Chongqing University; Chongqing 400030 China
| | - Yuhua Huang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education; State and Local Joint Engineering Laboratory for Vascular Implants; Bioengineering College of Chongqing University; Chongqing 400030 China
| | - Yi Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education; State and Local Joint Engineering Laboratory for Vascular Implants; Bioengineering College of Chongqing University; Chongqing 400030 China
| | - Junli Huang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education; State and Local Joint Engineering Laboratory for Vascular Implants; Bioengineering College of Chongqing University; Chongqing 400030 China
| | - Xiaoyi Ma
- Beijing Amsinomed Medical Co., Ltd; Beijing 100021 China
| | - Fugui He
- Beijing Amsinomed Medical Co., Ltd; Beijing 100021 China
| | - Juhui Qiu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education; State and Local Joint Engineering Laboratory for Vascular Implants; Bioengineering College of Chongqing University; Chongqing 400030 China
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education; State and Local Joint Engineering Laboratory for Vascular Implants; Bioengineering College of Chongqing University; Chongqing 400030 China
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62
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Hu T, Lin S, Du R, Fu M, Rao Q, Yin T, Huang Y, Wang G. Design, preparation and performance of a novel drug-eluting stent with multiple layer coatings. Biomater Sci 2018; 5:1845-1857. [PMID: 28676873 DOI: 10.1039/c7bm00417f] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Drug-eluting stents (DESs) can effectively control the harmful effects of coronary artery disease, because of their excellent ability to reduce in-stent restenosis. However, delayed re-endothelialization and late stent thrombosis have caused concern over the safety of DESs. In this study, according to time-ordered pathological responses after stent implantation, a hierarchical multiple drug-eluting stent was designed and prepared to overcome the existing DES limitations. A platelet membrane glycoprotein IIIa monoclonal antibody (SZ-21) and a vascular endothelial growth factor (VEGF121) were loaded into the inner coating of 316L stainless steel (316L SS) stents to inhibit thrombosis and promote re-endothelialization; rapamycin (RAPA) was loaded into the third layer to inhibit intima hyperplasia; a drug-free poly-l-lactic acid coating was located on the second and fourth layers and used as sustained release layers. The results showed that the three drugs exhibited sequential release kinetics without significant burst release. RAPA released quickly at the early stage, while SZ-21 and VEGF121 achieved a slow and prolonged release. In vitro experiments showed that the stents had excellent hemocompatibility and anti-inflammatory properties, and promoted the proliferation and migration of endothelial cells while inhibiting the proliferation and migration of smooth muscle cells. Finally the stents were implanted in the carotid arteries of New Zealand white rabbits. In vivo results showed that compared to 316L SS stents, the multiple drug-eluting stents could accelerate re-endothelialization and inhibit thrombosis, inflammation and in-stent restenosis after 4 weeks (12.79 ± 2.45% vs. 25.27 ± 4.81%) and 12 weeks (15.87 ± 3.62% vs. 58.84 ± 6.87%). These results indicate that the novel drug-eluting stent with multiple layer coatings will have a highly potential clinical application.
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Affiliation(s)
- Tingzhang Hu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education (Chongqing University), State and Local Joint Engineering Laboratory for Vascular Implants (Chongqing), Bioengineering College of Chongqing University, Chongqing 400044, China.
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63
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Lin MC, Lou CW, Lin JY, Lin TA, Chou SY, Chen YS, Lin JH. Using spray-coating method to form PVA coronary artery stents: structure and property evaluations. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1497-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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64
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Farah S. Protective Layer Development for Enhancing Stability and Drug-Delivery Capabilities of DES Surface-Crystallized Coatings. ACS APPLIED MATERIALS & INTERFACES 2018; 10:9010-9022. [PMID: 29436817 DOI: 10.1021/acsami.7b18733] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Carrier-free drug-eluting stents (DES)-based crystalline coatings are gaining prominence because of their function, skipping many limitations and clinical complications of the currently marketed DES. However, their usage has been humbled by inflexibility of the crystalline coating and limited mechanical and physical properties. This study reports for the first time the development of a protective top coating for enhancing the merits and delivery capabilities of the crystalline coating. Flexible and water-soluble polysaccharide top coating was developed and applied onto rapamycin (RM) crystalline carpet. The top coating prevented crystalline coating delamination during stent crimping and expansion without affecting its release profile. Crystalline coating strata and its interfaces with the metallic substrate and top coating were fully studied and characterized. The crystalline top-coated stents showed significant physical, mechanical, and chemical stability enhancement with ∼2% RM degradation after 1 year under different storage conditions. Biocompatibility study of the top-coated stents implanted subcutaneously for 1 month into SD rats did not provoke any safety concerns. Incorporating RM into the top coating to develop a bioactive protective coating for multilayer release purposes was also investigated. The developed protective coating had wide applicability and may be further implemented for various drugs and implantable medical devices.
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Affiliation(s)
- Shady Farah
- Institute of Drug Research, School of Pharmacy-Faculty of Medicine, Center for Nanoscience and Nanotechnology and The Alex Grass Center for Drug Design and Synthesis , The Hebrew University of Jerusalem , Jerusalem 91120 , Israel
- David H. Koch Institute for Integrative Cancer Research , Massachusetts Institute of Technology , 500 Main Street , Cambridge , Massachusetts 02139 , United States
- Department of Chemical Engineering , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States
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65
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Bao S, Kang J, Tu C, Xu C, Ye L, Zhang H, Zhao H, Zhang A, Feng Z, Zhang F. Chemical coatings relying on the self-polymerization of catechol for retrievable vena cava filters. NEW J CHEM 2018. [DOI: 10.1039/c7nj04138a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
After covalent conjugation with catechol, heparin and paclitaxel can be chemically coated on a Ti–Ni alloy to endow anti-thrombosis and anti-intimal hyperplasia properties, respectively.
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Affiliation(s)
- Songhao Bao
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Jialin Kang
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Chengzhao Tu
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Chengfeng Xu
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Lin Ye
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications
| | - Huan Zhang
- Shijitan Hospital
- Capital Medical University
- Beijing 100038
- China
| | - Hui Zhao
- Luhe Hospital
- Capital Medical University
- Beijing 101149
- China
| | - Aiying Zhang
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications
| | - Zengguo Feng
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications
| | - Fuxian Zhang
- Shijitan Hospital
- Capital Medical University
- Beijing 100038
- China
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66
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Recent developments in drug eluting devices with tailored interfacial properties. Adv Colloid Interface Sci 2017; 249:181-191. [PMID: 28532663 DOI: 10.1016/j.cis.2017.05.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 05/02/2017] [Accepted: 05/02/2017] [Indexed: 11/23/2022]
Abstract
Drug eluting devices have greatly evolved during past years to become fundamental products of great marketing importance in the biomedical field. There is currently a large diversity of highly specialized devices for specific applications, making the development of these devices an exciting field of research. The replacement of the former bare metal devices by devices loaded with drugs allowed the sustained and controlled release of drugs, to achieve the desired local therapeutic concentration of drug. The newer devices have been "engineered" with surfaces containing micro- and nanoscale features in a well-controlled manner, that have shown to significantly affect cellular and subcellular function of various biological systems. For example, the topography can be structured to form an antifouling surface mimicking the defense mechanisms found in nature, like the skin of the shark. In the case of bone implants, well-controlled nanostructured interfaces can promote osteoblast differentiation and matrix production, and enhance short-term and long-term osteointegration. In any case, the goal of current research is to design implants that induce controlled, guided, and rapid healing. This article reviews recent trends in the development of drug eluting devices, as well as recent developments on the micro/nanotechnology scales, and their future challenges. For this purpose medical devices have been divided according to the different systems of the body they are focused to: orthopedic devices, breathing stents, gastrointestinal and urinary systems, devices for cardiovascular diseases, neuronal implants, and wound dressings.
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67
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Liu J, Wang P, Chu CC, Xi T. Arginine-leucine based poly (ester urea urethane) coating for Mg-Zn-Y-Nd alloy in cardiovascular stent applications. Colloids Surf B Biointerfaces 2017; 159:78-88. [PMID: 28780463 DOI: 10.1016/j.colsurfb.2017.07.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 06/09/2017] [Accepted: 07/10/2017] [Indexed: 12/11/2022]
Abstract
Selected from the family of self-designed biodegradable amino acid-based poly (ester urea urethane) (AA-PEUU) pseudo-protein biomaterials, arginine-leucine based poly (ester urea urethane)s (Arg-Leu-PEUUs) were used as protective and bio-functional coatings for bio-absorbable magnesium alloy MgZnYNd in cardiovascular stent applications. Comparing with poly (glycolide-co-lactide) (PLGA) coating, the Arg-Leu-PEUU coating had stronger bonding strength with the substrate; in vitro electrochemical and long-term immersion results verified a significantly better corrosion resistance. Acute blood contact tests proved a better hemocompatibility of Arg-Leu-PEUU coating. The immunofluorescent staining and cell proliferation test indicated that Arg-Leu-PEUU coating had a far better cytocompatibility. The Arg-Leu-PEUU coating stimulated human umbilical vein endothelial cells (HUVEC) to release reasonably increased amount of nitric oxide (NO), suggesting its potential in retarding thrombosis and restenosis. The superior corrosion resistance and biocompatibility as well as the indigenous NO production bio-functionality of the Arg-Leu-PEUU copolymer family indicate their capability to offer a far better protection of the magnesium-based implantable cardiovascular stent and bring their application closer to clinical reality.
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Affiliation(s)
- Jing Liu
- Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin 300192, China; Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China; Department of Fiber Science and Apparel Design, and Biomedical Engineering Field, Cornell University, Ithaca, NY, 14853-4401, USA.
| | - Pei Wang
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Chih-Chang Chu
- Department of Fiber Science and Apparel Design, and Biomedical Engineering Field, Cornell University, Ithaca, NY, 14853-4401, USA
| | - Tingfei Xi
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China; Shenzhen Research Institute, Peking University, Shenzhen 518055, China.
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68
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Hu T, Yang C, Fu M, Yang J, Du R, Ran X, Yin T, Wang G. Cytotoxic effects of docetaxel as a candidate drug of drug-eluting stent on human umbilical vein endothelial cells and the signaling pathway of cell migration inhibition, adhesion delay and shape change. Regen Biomater 2017; 4:167-178. [PMID: 28596914 PMCID: PMC5458539 DOI: 10.1093/rb/rbx010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/12/2017] [Accepted: 03/14/2017] [Indexed: 01/03/2023] Open
Abstract
Docetaxel (DTX), a paclitaxel analogue, can efficiently inhibit proliferation of vascular smooth muscle cells and has broadly been used as an antiangiogenesis drug. However, as a candidate drug of drug-eluting stent, the effects of DTX on human umbilical vein endothelial cells (HUVECs) are still not well understood. Herein, we investigated the effects of DTX on proliferation, apoptosis, adhesion, migration and morphology of HUVECs in vitro. We found that DTX had the cytostatic and cytotoxic effects at low and high concentrations, respectively. DTX could inhibit the proliferation and migration of HUVECs, induce HUVECs apoptosis, delay HUVECs adhesion and decrease spreading area and aspect ratio of individual cells. The signaling pathway that DTX led to the migration inhibition, adhesion delay and shape change of HUVECs is the VE-cadherin mediated integrin β1/FAK/ROCK signaling pathway. The study will provide a theoretical basis for the clinical application of DTX.
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Affiliation(s)
- Tingzhang Hu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Chun Yang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Meiling Fu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Jiali Yang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Rolin Du
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Xiaolin Ran
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Tieying Yin
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
- Correspondence address. Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China. Tel: +86(0)23-65112675; Fax: +86(0)23-65112507; E-mail:
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69
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Chen W, Clauser J, Thiebes AL, McGrath DJ, Kelly N, van Steenbergen MJ, Jockenhoevel S, Steinseifer U, McHugh PE, Hennink WE, Kok RJ. Gefitinib/gefitinib microspheres loaded polyurethane constructs as drug-eluting stent coating. Eur J Pharm Sci 2017; 103:94-103. [PMID: 28179132 DOI: 10.1016/j.ejps.2017.02.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 01/28/2017] [Accepted: 02/02/2017] [Indexed: 12/16/2022]
Abstract
One of the complications of bronchotracheal cancer is obstruction of the upper airways. Local tumor resection in combination with an airway stent can suppress intraluminal tumor (re)growth. We have investigated a novel drug-eluting stent coating for local release of the anticancer drug gefitinib. A polyurethane (PU) sandwich construct was prepared by a spray coating method in which gefitinib was embedded between a PU support layer of 200μm and a PU top layer of 50-200μm. Gefitinib was either embedded in the construct as small crystals or as gefitinib-loaded poly(lactic-co-glycolic acid) (PLGA) microspheres (MSP). The drug was incorporated in the PU constructs with high recovery (83-93%), and the spray coating procedure did not affect the morphologies of the embedded microspheres as demonstrated by scanning electron microscopy (SEM), confocal laser scanning microscopy and fluorescence microscopy analysis. PU constructs loaded with gefitinib crystals released the drug for 7-21days and showed diffusion based release kinetics. Importantly, directional release of the drug towards the top layer, which is supposed to face the tumor mass, was controlled by the thicknesses of the PU top layer. PU constructs loaded with gefitinib microspheres released the drug in a sustained manner for >6months indicating that drug release from the microspheres became the rate limiting step. In conclusion, the sandwich structure of drug-loaded PLGA microspheres in PU coating is a promising coating for airway stents that release anticancer drugs locally for a prolonged time.
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Affiliation(s)
- Weiluan Chen
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Johanna Clauser
- Department of Cardiovascular Engineering, Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Pauwelsstraße 20, 52074, Germany
| | - Anja Lena Thiebes
- Department of Biohybrid & Medical Textiles (BioTex), AME-Helmholtz Institute for Biomedical Engineering, ITA-Institut für Textiltechnik, RWTH Aachen University, Aachen, Germany
| | - Donnacha J McGrath
- Biomechanics Research Centre, Biomedical Engineering, College of Engineering and Informatics, National University of Ireland, University Road, Galway, Ireland
| | - Nicola Kelly
- Biomechanics Research Centre, Biomedical Engineering, College of Engineering and Informatics, National University of Ireland, University Road, Galway, Ireland
| | - Mies J van Steenbergen
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Stefan Jockenhoevel
- Department of Biohybrid & Medical Textiles (BioTex), AME-Helmholtz Institute for Biomedical Engineering, ITA-Institut für Textiltechnik, RWTH Aachen University, Aachen, Germany
| | - Ulrich Steinseifer
- Department of Cardiovascular Engineering, Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Pauwelsstraße 20, 52074, Germany
| | - Peter E McHugh
- Biomechanics Research Centre, Biomedical Engineering, College of Engineering and Informatics, National University of Ireland, University Road, Galway, Ireland
| | - Wim E Hennink
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Robbert J Kok
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.
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70
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Haeri A, Sadeghian S, Rabbani S, Anvari MS, Ghassemi S, Radfar F, Dadashzadeh S. Effective attenuation of vascular restenosis following local delivery of chitosan decorated sirolimus liposomes. Carbohydr Polym 2017; 157:1461-1469. [DOI: 10.1016/j.carbpol.2016.11.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 10/27/2016] [Accepted: 11/07/2016] [Indexed: 12/11/2022]
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71
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Liu J, Wang P, Chu CC, Xi T. A novel biodegradable and biologically functional arginine-based poly(ester urea urethane) coating for Mg–Zn–Y–Nd alloy: enhancement in corrosion resistance and biocompatibility. J Mater Chem B 2017; 5:1787-1802. [DOI: 10.1039/c6tb03147a] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel biodegradable and functional Arg-PEUU coating materials for MgZnYNd alloy stents may make drugs like sirolimus or paclitaxel unnecessary.
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Affiliation(s)
- Jing Liu
- Center for Biomedical Materials and Tissue Engineering
- Academy for Advanced Interdisciplinary Studies
- Peking University
- Beijing 100871
- China
| | - Pei Wang
- Center for Biomedical Materials and Tissue Engineering
- Academy for Advanced Interdisciplinary Studies
- Peking University
- Beijing 100871
- China
| | - Chih-Chang Chu
- Department of Fiber Science and Apparel Design, and Biomedical Engineering Field
- Cornell University
- Ithaca
- USA
| | - Tingfei Xi
- Center for Biomedical Materials and Tissue Engineering
- Academy for Advanced Interdisciplinary Studies
- Peking University
- Beijing 100871
- China
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72
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Haeri A, Sadeghian S, Rabbani S, Shirani S, Anvari MS, Dadashzadeh S. Physicochemical characteristics of liposomes are decisive for their antirestenosis efficacy following local delivery. Nanomedicine (Lond) 2016; 12:131-145. [PMID: 27876438 DOI: 10.2217/nnm-2016-0294] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
AIM To develop an ameliorated sirolimus (SIR) liposome for intramural delivery, the effects of various carrier physicochemical parameters on the antirestenosis efficacy were evaluated. MATERIALS & METHODS Different liposomes were prepared, characterized and administered to balloon injured rats (12 animal groups). Their efficacies were investigated using morphometric, immunohistochemical and in vivo computed tomography imaging analyses. RESULTS The antirestenosis efficacy of SIR liposomes decreased in the following order: cationic 100 nm vesicles ≥ cationic 60 nm vesicles > neutral 100 nm vesicles ≥ stealth 100 nm vesicles > anionic 100 nm vesicles. The 100 µg SIR loaded in cationic liposomes showed almost no artery stenosis. CONCLUSION Appropriate modulation of physicochemical characteristics makes it possible to optimize the liposomes for local delivery.
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Affiliation(s)
- Azadeh Haeri
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeed Sadeghian
- Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahram Rabbani
- Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Shapour Shirani
- Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Simin Dadashzadeh
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Pharmaceutical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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73
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Development of a novel dual PLGA and alginate coated drug-eluting stent for enhanced blood compatibility. Macromol Res 2016. [DOI: 10.1007/s13233-016-4130-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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74
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Liu J, Zheng B, Wang P, Wang X, Zhang B, Shi Q, Xi T, Chen M, Guan S. Enhanced in Vitro and in Vivo Performance of Mg-Zn-Y-Nd Alloy Achieved with APTES Pretreatment for Drug-Eluting Vascular Stent Application. ACS APPLIED MATERIALS & INTERFACES 2016; 8:17842-17858. [PMID: 27331417 DOI: 10.1021/acsami.6b05038] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Bioabsorbable magnesium alloys are becoming prominent as temporary functional implants, as they avoid the risks generated by permanent metallic implants such as persistent inflammation and late restenosis. Nevertheless, the overfast corrosion of Mg alloys under physiological conditions hinders their wider application as medical implant materials. Here we investigate a simple one-step process to introduce a cross-linked 3-amino-propyltrimethoxysilane (APTES) silane physical barrier layer on the surface of Mg-Zn-Y-Nd alloys prior to electrostatic spraying with rapamycin-eluting poly(lactic-co-glycolic acid) (PLGA) layer. Surface microstructure was characterized by scanning electron microscope and Fourier transform infrared spectroscopy. Nanoscratch test verified the superior adhesion strength of PLGA coating in the group pretreated with APTES. Electrochemical tests combined with long-term immersion results suggested that the preferable in vitro anticorrosion behavior could be achieved by dense APTES barrier. Cell morphology and proliferation data demonstrated that APTES pretreated group resulted in remarkably preferable compatibility for both human umbilical vein endothelial cells and vascular smooth muscle cells. On the basis of excellent in vitro mechenical property, the animal study on the APTES pretreated Mg-Zn-Y-Nd stent implanted into porcine coronary arteries confirmed benign tissue compatibility as well as re-endothelialization without thrombogenesis or in-stent restenosis at six-month followup.
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Affiliation(s)
- Jing Liu
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University , Beijing 100871, China
| | - Bo Zheng
- Department of cardiology, Peking University First Hospital , Beijing 100034, China
| | - Pei Wang
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University , Beijing 100871, China
| | - Xingang Wang
- Department of cardiology, Peking University First Hospital , Beijing 100034, China
| | - Bin Zhang
- Department of cardiology, Peking University First Hospital , Beijing 100034, China
| | - Qiuping Shi
- Department of cardiology, Peking University First Hospital , Beijing 100034, China
| | - Tingfei Xi
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University , Beijing 100871, China
- Shenzhen Research Institute, Peking University , Shenzhen 518055, China
| | - Ming Chen
- Department of cardiology, Peking University First Hospital , Beijing 100034, China
| | - Shaokang Guan
- School of Materials Science and Engineering, Zhengzhou University , Zhengzhou 450002, China
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75
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Trant JF, Abd Rabo Moustafa MM, Sran I, Gillies ER. Polyisobutylene-paclitaxel conjugates with pendant carboxylic acids and polystyrene chains: Towards multifunctional stent coatings with slow drug release. JOURNAL OF POLYMER SCIENCE PART A: POLYMER CHEMISTRY 2016; 54:2209-2219. [DOI: 10.1002/pola.28094] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Affiliation(s)
- John F. Trant
- Department of Chemistry; The University of Western Ontario; 1151 Richmond St London Canada N6A 5B7
| | | | - Inderpreet Sran
- Department of Chemistry; The University of Western Ontario; 1151 Richmond St London Canada N6A 5B7
| | - Elizabeth R. Gillies
- Department of Chemistry; The University of Western Ontario; 1151 Richmond St London Canada N6A 5B7
- Department of Chemical and Biochemical Engineering; The University of Western Ontario; 1151 Richmond St London Canada N6A 5B9
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76
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Chen N, Yang X, Wang Q, Jian L, Shi H, Qin S, Wang K, Huang J, Liu W. Proof of concept for inhibiting metastasis: circulating tumor cell-triggered localized release of anticancer agent via a structure-switching aptamer. Chem Commun (Camb) 2016; 52:6789-92. [PMID: 27121864 DOI: 10.1039/c6cc02374f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Existing drug delivery systems were not suitable for killing cells in the circulatory system specifically. Herein, we developed a novel localized drug delivery strategy, in which the release of anticancer agents was specifically triggered by circulating tumor cells. Meanwhile, damage to non-target cells was avoided.
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Affiliation(s)
- Nandi Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, P. R. China.
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77
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Ma X, Xiao Y, Xu H, Lei K, Lang M. Preparation, degradation and in vitro release of ciprofloxacin-eluting ureteral stents for potential antibacterial application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 66:92-99. [PMID: 27207042 DOI: 10.1016/j.msec.2016.04.072] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 04/18/2016] [Accepted: 04/21/2016] [Indexed: 01/13/2023]
Abstract
Drug-eluting stents with biodegradable polymers as reservoirs have shown great potential in the application of interventional therapy due to their capability of local drug delivery. Herein, poly(l-lactide-co-ε-caprolactone) (PLCL) with three different compositions as carriers for ciprofloxacin lactate (CIP) was coated on ureteral stents by the dipping method. To simulate a body environment, degradation behavior of PLCL as both the bulk film and the stent coating was evaluated in artificial urine (AU, pH6.20) respectively at 37°C for 120days by tracing their weight/Mn loss, water absorption and surface morphologies. Furthermore, the release profile of the eluting drug CIP on each stent exhibited a three-stage pattern, which was greatly affected by the degradation behavior of PLCL except for the burst stage. Interestingly, the degradation results on both macroscopic and molecular level indicated that the release mechanism at stage I was mainly controlled by chain scission instead of the weight loss or morphological changes of the coatings. While for stage II, the release profile was dominated by erosion resulting from the hydrolysis reaction autocatalyzed by acidic degradation residues. In addition, ciprofloxacin-loaded coatings displayed a significant bacterial resistance against E. coli and S. aureus without obvious cytotoxicity to Human foreskin fibroblasts (HFFs). Our results suggested that PLCL copolymers with tunable degradation rate as carriers for ciprofloxacin lactate could be used as a promising long-term antibacterial coating for ureteral stents.
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Affiliation(s)
- Xiaofei Ma
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials and Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yan Xiao
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials and Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Heng Xu
- Collaborative Innovation Center for Petrochemical New Materials, Anqing, Anhui 246011, China
| | - Kun Lei
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials and Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Meidong Lang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials and Science and Engineering, East China University of Science and Technology, Shanghai 200237, China; Shanghai Collaborative Innovation Center for Biomanufacturing, 130 Meilong Road, Shanghai 200237, China.
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78
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Hao W, Xia T, Shang Y, Xu S, Liu H. Characterization and release kinetics of liposomes inserted by pH-responsive bola-polymer. Colloid Polym Sci 2016. [DOI: 10.1007/s00396-016-3871-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Wu X, Zhao Y, Tang C, Yin T, Du R, Tian J, Huang J, Gregersen H, Wang G. Re-Endothelialization Study on Endovascular Stents Seeded by Endothelial Cells through Up- or Downregulation of VEGF. ACS APPLIED MATERIALS & INTERFACES 2016; 8:7578-7589. [PMID: 26925508 DOI: 10.1021/acsami.6b00152] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We studied the effects of gene transfection of endothelial cells with vascular endothelial growth factor (VEGF) on re-endothelialization and inhibition of in-stent restenosis. Transfected endothelial cells (ECs) exposed to different VEGF levels were seeded on a stent surface for evaluation in vitro. VEGF121(++) ECs and VEGF121(--) ECs were established using lentiviral-mediated HUVECs transfection. VEGF RNA transcription level and VEGF protein expression were detected by qPCR, Western blot, and ELISA. Methyl thiazolyl tetrazolium (MTT) assay, wound healing assay, and in vitro HUVEC tube formation assay showed that VEGF overexpression promoted cell proliferation, migration, and endothelial capillary-like tube formation. Downregulation of VEGF expression inhibited these activities. Using a rotational culturing system, cells tightly adhered on the stent surface. Stents seeded with transfected ECs at different VEGF levels were implanted in abdominal aortas of New Zealand white rabbits to study re-endothelialization and inhibition of in-stent restenosis. Stents with cells exposed to excess VEGF expression were almost completely covered with cells after stent implantation for 1 week (w). In the VEGF interference group this process was delayed over 4 w due to RNAi-mediated silencing of VEGF. Cryosectioning after 12 w showed that stents seeded with HUVECs exposed to excess VEGF expression significantly reduced the neointima area and stenosis when compared with bare metal stents and stents from the VEGF interference group. Transgenic HUVECs were not found in tissues of experimental animals. Furthermore, cells from these tissues were similar to those from normal tissue. In conclusion, VEGF-mediated endothelialization was found. Furthermore, ECs exposed to VEGF overexpression reduced neointimal hyperplasia, promoted endothelialization, and reduced in-stent restenosis.
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Trant JF, Sran I, de Bruyn JR, Ingratta M, Borecki A, Gillies ER. Synthesis and properties of arborescent polyisobutylene derivatives and a paclitaxel conjugate: Towards stent coatings with prolonged drug release. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.09.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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