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Zoppo CT, Mocco J, Manning NW, Bogdanov AA, Gounis MJ. Surface modification of neurovascular stents: from bench to patient. J Neurointerv Surg 2024; 16:908-913. [PMID: 37793794 DOI: 10.1136/jnis-2023-020620] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 09/19/2023] [Indexed: 10/06/2023]
Abstract
Flow-diverting stents (FDs) for the treatment of cerebrovascular aneurysms are revolutionary. However, these devices require systemic dual antiplatelet therapy (DAPT) to reduce thromboembolic complications. Given the risk of ischemic complications as well as morbidity and contraindications associated with DAPT, demonstrating safety and efficacy for FDs either without DAPT or reducing the duration of DAPT is a priority. The former may be achieved by surface modifications that decrease device thrombogenicity, and the latter by using coatings that expedite endothelial growth. Biomimetics, commonly achieved by grafting hydrophilic and non-interacting polymers to surfaces, can mask the device surface with nature-derived coatings from circulating factors that normally activate coagulation and inflammation. One strategy is to mimic the surfaces of innocuous circulatory system components. Phosphorylcholine and glycan coatings are naturally inspired and present on the surface of all eukaryotic cell membranes. Another strategy involves linking synthetic biocompatible polymer brushes to the surface of a device that disrupts normal interaction with circulating proteins and cells. Finally, drug immobilization can also impart antithrombotic effects that counteract normal foreign body reactions in the circulatory system without systemic effects. Heparin coatings have been explored since the 1960s and used on a variety of blood contacting surfaces. This concept is now being explored for neurovascular devices. Coatings that improve endothelialization are not as clinically mature as anti-thrombogenic coatings. Coronary stents have used an anti-CD34 antibody coating to capture circulating endothelial progenitor cells on the surface, potentially accelerating endothelial integration. Similarly, coatings with CD31 analogs are being explored for neurovascular implants.
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Affiliation(s)
- Christopher T Zoppo
- New England Center for Stroke Research, Department of Radiology, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - J Mocco
- Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Nathan W Manning
- The MIRI Centre, Ingham Institute for Applied Medical Science, Sydney, New South Wales, Australia
- Department of Interventional Radiology, Liverpool Hospital, Sydney, New South Wales, Australia
| | - Alexei A Bogdanov
- New England Center for Stroke Research, Department of Radiology, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - Matthew J Gounis
- New England Center for Stroke Research, Department of Radiology, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
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2
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Hassan S, Bilal N, Khan TJ, Ali MN, Ghafoor B, Saif KU. Bioinspired chitosan based functionalization of biomedical implant surfaces for enhanced hemocompatibility, antioxidation and anticoagulation potential: an in silico and in vitro study. RSC Adv 2024; 14:20691-20713. [PMID: 38952927 PMCID: PMC11215499 DOI: 10.1039/d4ra00796d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 06/17/2024] [Indexed: 07/03/2024] Open
Abstract
Endowing implanted biomaterials with better hemocompatibility, anticoagulation, antioxidant and antiplatelet adhesion is necessary because of their potential to trigger activation of multiple reactive mechanisms including coagulation cascade and potentially causing serious adverse clinical events like late thrombosis. Active ingredients from natural sources including Foeniculum vulgare, Angelica sinensis, and Cinnamomum verum have the ability to inhibit the coagulation cascade and thrombus formation around biomedical implants. These properties are of interest for the development of a novel drug for biomedical implants to potentially solve the current blood clotting and coagulation problems which lead to stent thrombosis. The objective of this study was to incorporate different anticoagulants from natural sources into a degradable matrix of chitosan with varying concentrations ranging from 5% to 15% and a composite containing all three drugs. The presence of anticoagulant constituents was identified using GC-MS. Subsequently, all the compositions were characterized principally by using Fourier transform infrared spectroscopy and scanning electron microscopy while the drug release profile was determined using UV-spectrometry for a 30 days immersion period. The results indicated an initial burst release which was subsequently followed by the sustained release pattern. Compared to heparin loaded chitosan, DPPH and hemolysis tests revealed better blood compatibility of natural drug loaded films. Moreover, the anticoagulation activity of natural drugs was equivalent to the heparin loaded film; however, through docking, the mechanism of inhibition of the coagulation cascade of the novel drug was found to be through blocking the extrinsic pathway. The study suggested that the proposed drug composite expresses an optimum composition which may be a practicable and appropriate candidate for biomedical implant coatings.
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Affiliation(s)
- Sadia Hassan
- School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology Islamabad Pakistan
| | - Namra Bilal
- Nencki Institute of Experimental Biology Poland
| | - Tooba Javaid Khan
- School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology Islamabad Pakistan
| | - Murtaza Najabat Ali
- School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology Islamabad Pakistan
| | - Bakhtawar Ghafoor
- School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology Islamabad Pakistan
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3
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Cheng J, Huang H, Chen Y, Wu R. Nanomedicine for Diagnosis and Treatment of Atherosclerosis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2304294. [PMID: 37897322 PMCID: PMC10754137 DOI: 10.1002/advs.202304294] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 09/11/2023] [Indexed: 10/30/2023]
Abstract
With the changing disease spectrum, atherosclerosis has become increasingly prevalent worldwide and the associated diseases have emerged as the leading cause of death. Due to their fascinating physical, chemical, and biological characteristics, nanomaterials are regarded as a promising tool to tackle enormous challenges in medicine. The emerging discipline of nanomedicine has filled a huge application gap in the atherosclerotic field, ushering a new generation of diagnosis and treatment strategies. Herein, based on the essential pathogenic contributors of atherogenesis, as well as the distinct composition/structural characteristics, synthesis strategies, and surface design of nanoplatforms, the three major application branches (nanodiagnosis, nanotherapy, and nanotheranostic) of nanomedicine in atherosclerosis are elaborated. Then, state-of-art studies containing a sequence of representative and significant achievements are summarized in detail with an emphasis on the intrinsic interaction/relationship between nanomedicines and atherosclerosis. Particularly, attention is paid to the biosafety of nanomedicines, which aims to pave the way for future clinical translation of this burgeoning field. Finally, this comprehensive review is concluded by proposing unresolved key scientific issues and sharing the vision and expectation for the future, fully elucidating the closed loop from atherogenesis to the application paradigm of nanomedicines for advancing the early achievement of clinical applications.
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Affiliation(s)
- Jingyun Cheng
- Department of UltrasoundShanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai200080P. R. China
| | - Hui Huang
- Materdicine LabSchool of Life SciencesShanghai UniversityShanghai200444P. R. China
| | - Yu Chen
- Materdicine LabSchool of Life SciencesShanghai UniversityShanghai200444P. R. China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health)Wenzhou Institute of Shanghai UniversityWenzhouZhejiang325088P. R. China
| | - Rong Wu
- Department of UltrasoundShanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai200080P. R. China
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4
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Phan T, Jones JE, Chen M, Strawn T, Khoukaz HB, Ji Y, Kumar A, Bowles DK, Fay WP, Yu Q. In vitro biological responses of plasma nanocoatings for coronary stent applications. J Biomed Mater Res A 2023; 111:1768-1780. [PMID: 37465994 PMCID: PMC10529135 DOI: 10.1002/jbm.a.37587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 06/15/2023] [Accepted: 06/20/2023] [Indexed: 07/20/2023]
Abstract
In-stent restenosis and thrombosis remain to be long-term challenges in coronary stenting procedures. The objective of this study was to evaluate the in vitro biological responses of trimethylsilane (TMS) plasma nanocoatings modified with NH3 /O2 (2:1 molar ratio) plasma post-treatment (TMS + NH3 /O2 nanocoatings) on cobalt chromium (CoCr) alloy L605 coupons, L605 stents, and 316L stainless steel (SS) stents. Surface properties of the plasma nanocoatings with up to 2-year aging time were characterized by wettability assessment and x-ray photoelectron spectroscopy (XPS). It was found that TMS + NH3 /O2 nanocoatings had a surface composition of 41.21 ± 1.06 at% oxygen, 31.90 ± 1.08 at% silicon, and 24.12 ± 1.7 at% carbon, and very small but essential amount of 2.77 ± 0.18 at% nitrogen. Surface chemical stability of the plasma coatings was noted with persistent O/Si atomic ratio of 1.292-1.413 and N/Si atomic ratio of ~0.087 through 2 years. The in vitro biological responses of plasma nanocoatings were studied by evaluating the cell proliferation and migration of porcine coronary artery endothelial cells (PCAECs) and smooth muscle cells (PCASMCs). 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium (MTT) assay results revealed that, after 7-day incubation, TMS + NH3 /O2 nanocoatings maintained a similar level of PCAEC proliferation while showing a decrease in the viability of PCASMCs by 73 ± 19% as compared with uncoated L605 surfaces. Cell co-culture of PCAECs and PCASMCs results showed that, the cell ratio of PCAEC/PCASMC on TMS + NH3 /O2 nanocoating surfaces was 1.5-fold higher than that on uncoated L605 surfaces, indicating enhanced selectivity for promoting PCAEC growth. Migration test showed comparable PCAEC migration distance for uncoated L605 and TMS + NH3 /O2 nanocoatings. In contrast, PCASMC migration distance was reduced nearly 8.5-fold on TMS + NH3 /O2 nanocoating surfaces as compared to the uncoated L605 surfaces. Platelet adhesion test using porcine whole blood showed lower adhered platelets distribution (by 70 ± 16%), reduced clotting attachment (by 54 ± 12%), and less platelet activation on TMS + NH3 /O2 nanocoating surfaces as compared with the uncoated L605 controls. It was further found that, under shear stress conditions of simulated blood flow, TMS + NH3 /O2 nanocoating significantly inhibited platelet adhesion compared to the uncoated 316L SS stents and TMS nanocoated 316L SS stents. These results indicate that TMS + NH3 /O2 nanocoatings are very promising in preventing both restenosis and thrombosis for coronary stent applications.
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Affiliation(s)
- ThiThuHa Phan
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211
| | - John E. Jones
- Nanova, Inc., 1601 S Providence Rd, Columbia, MO 65211
| | - Meng Chen
- Nanova, Inc., 1601 S Providence Rd, Columbia, MO 65211
| | - T.L. Strawn
- Department of Medicine, Division of Cardiovascular Medicine, School of Medicine, University of Missouri, Columbia, MO 65212
| | - Hekmat B. Khoukaz
- Department of Medicine, Division of Cardiovascular Medicine, School of Medicine, University of Missouri, Columbia, MO 65212
| | - Yan Ji
- Department of Medicine, Division of Cardiovascular Medicine, School of Medicine, University of Missouri, Columbia, MO 65212
| | - Arun Kumar
- Department of Medicine, Division of Cardiovascular Medicine, School of Medicine, University of Missouri, Columbia, MO 65212
| | - Douglas K. Bowles
- Department of Biomedical Sciences, University of Missouri, Columbia, MO 65211
| | - William P. Fay
- Department of Medicine, Division of Cardiovascular Medicine, School of Medicine, University of Missouri, Columbia, MO 65212
| | - Qingsong Yu
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211
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Zhou SY, Li L, Xie E, Li MX, Cao JH, Yang XB, Wu DY. Small-diameter PCL/PU vascular graft modified with heparin-aspirin compound for preventing the occurrence of acute thrombosis. Int J Biol Macromol 2023; 249:126058. [PMID: 37524284 DOI: 10.1016/j.ijbiomac.2023.126058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 07/20/2023] [Accepted: 07/28/2023] [Indexed: 08/02/2023]
Abstract
The occurrence of acute thrombosis, directly related to platelet aggregation and coagulant system, is a considerable reason for the failure of small-diameter vascular grafts. Heparin is commonly used as a functional molecule for graft modification due to the strong anticoagulant effect. Unfortunately, heparin cannot directly resist the adhesion and aggregation of platelets. Therefore, we have prepared a heparin-aspirin compound by coupling heparin with aspirin, an antiplatelet drug, and covalently grafted it onto the surface of polycaprolactone/polyurethane composite tube. In this way, the graft not only showed a dual function of both anticoagulation and antiplatelet, but also effectively avoided the rapid drug release and excessive toxicity to other organs caused by simple blending the medicine with material matrix. The compound retained the original function of heparin, showing good hydrophilicity and biocompatibility, which could promote the adhesion and proliferation of endothelial cells (ECs) and facilitate the process of tissue regeneration. What's more, the compound showed more effective than heparin in reducing platelet activation and preventing thrombosis. The graft modified by this compound maintained completely unobstructed for one month of implantation, while severe obstruction or stenosis occurred in PCL/PU and PCL/PU-Hep lumen at the first week, verifying the effect of the compound on preventing acute thrombosis. In general, this study proposed a designing method for small-diameter vascular graft which could prevent acute thrombosis and promote intimal construction.
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Affiliation(s)
- Si-Yuan Zhou
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Lei Li
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
| | - Enzehua Xie
- Department of Cardiovascular Surgery, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100037, PR China
| | - Mei-Xi Li
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jian-Hua Cao
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Xiu-Bin Yang
- Department of Cardiac Surgery, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, PR China.
| | - Da-Yong Wu
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
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6
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Barros NR, Chen Y, Hosseini V, Wang W, Nasiri R, Mahmoodi M, Yalcintas EP, Haghniaz R, Mecwan MM, Karamikamkar S, Dai W, Sarabi SA, Falcone N, Young P, Zhu Y, Sun W, Zhang S, Lee J, Lee K, Ahadian S, Dokmeci MR, Khademhosseini A, Kim HJ. Recent developments in mussel-inspired materials for biomedical applications. Biomater Sci 2021; 9:6653-6672. [PMID: 34550125 DOI: 10.1039/d1bm01126j] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Over the decades, researchers have strived to synthesize and modify nature-inspired biomaterials, with the primary aim to address the challenges of designing functional biomaterials for regenerative medicine and tissue engineering. Among these challenges, biocompatibility and cellular interactions have been extensively investigated. Some of the most desirable characteristics for biomaterials in these applications are the loading of bioactive molecules, strong adhesion to moist areas, improvement of cellular adhesion, and self-healing properties. Mussel-inspired biomaterials have received growing interest mainly due to the changes in mechanical and biological functions of the scaffold due to catechol modification. Here, we summarize the chemical and biological principles and the latest advancements in production, as well as the use of mussel-inspired biomaterials. Our main focus is the polydopamine coating, the conjugation of catechol with other polymers, and the biomedical applications that polydopamine moieties are used for, such as matrices for drug delivery, tissue regeneration, and hemostatic control. We also present a critical conclusion and an inspired view on the prospects for the development and application of mussel-inspired materials.
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Affiliation(s)
| | - Yi Chen
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA. .,School of Materials Science and Engineering, South China University of Technology, Guangzhou 510006, P. R. China.,Guangzhou Redsun Gas Appliance CO., Ltd, Guangzhou 510460, P. R. China
| | - Vahid Hosseini
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | - Weiyue Wang
- Guangdong Engineering & Technology Research Center for Quality and Efficacy Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Rohollah Nasiri
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | - Mahboobeh Mahmoodi
- Department of Biomedical Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran
| | | | - Reihaneh Haghniaz
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | | | | | - Wei Dai
- Department of Research and Design, Beijing Biosis Healing Biological Technology Co., Ltd, Daxing District, Biomedical Base, Beijing 102600, P. R. China
| | - Shima A Sarabi
- Department of Mechanical and Aerospace Engineering, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Natashya Falcone
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | - Patric Young
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | - Yangzhi Zhu
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | - Wujin Sun
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | - Shiming Zhang
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA. .,Department of Electrical and Electronic Engineering, The University of Hong Kong, China
| | - Junmin Lee
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | - Kangju Lee
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA. .,Department of Healthcare and Biomedical Engineering, Chonnam National University, Yeosu 59626, South Korea
| | - Samad Ahadian
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | | | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
| | - Han-Jun Kim
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA.
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Parbat D, Bhunia BK, Mandal BB, Manna U. Bio-inspired Underwater Super-Oil-Wettability for Controlling Platelet Adhesion. Chem Asian J 2021; 16:1081-1085. [PMID: 33742553 DOI: 10.1002/asia.202100143] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/18/2021] [Indexed: 01/07/2023]
Abstract
Control promotion and prevention of platelet adhesion are important for various biomedical applications. In the past, surface topography and chemical modifications have been commonly utilized for tailoring the promotion and prevention of platelet adhesion. Recently, lotus-leaf-inspired superhydrophobicity has appeared as an efficient avenue to prevent platelet adhesion. However, such extreme water repellent interfaces fail to perform upon prolonged and continuous exposure to aqueous phase. In this communication, the strategic use of a catalyst-free 1,4-conjugate addition reaction between amine and acrylate allowed us to investigate the impact of two distinct underwater oil-wettability on platelet adhesion activity. While underwater superoleophobicity inhibited platelet-adhesion, a highly aggregated fibrous network of adhered platelets was observed on underwater superoleophilic coating. Further, this biocompatible and haemocompatible underwater superoleophobic multilayer coating was deposited on a commercially available catheter tube to examine its potential towards the prevention of platelet attachment.
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Affiliation(s)
- Dibyangana Parbat
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Bibhas K Bhunia
- Biomaterial and Tissue Engineering laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Biman B Mandal
- Biomaterial and Tissue Engineering laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India.,Centre for Nanotechnology, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Uttam Manna
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India.,Centre for Nanotechnology, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
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8
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Chen J, Zhang X, Millican R, Sherwood J, Martin S, Jo H, Yoon YS, Brott BC, Jun HW. Recent advances in nanomaterials for therapy and diagnosis for atherosclerosis. Adv Drug Deliv Rev 2021; 170:142-199. [PMID: 33428994 PMCID: PMC7981266 DOI: 10.1016/j.addr.2021.01.005] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/02/2021] [Accepted: 01/03/2021] [Indexed: 12/18/2022]
Abstract
Atherosclerosis is a chronic inflammatory disease driven by lipid accumulation in arteries, leading to narrowing and thrombosis. It affects the heart, brain, and peripheral vessels and is the leading cause of mortality in the United States. Researchers have strived to design nanomaterials of various functions, ranging from non-invasive imaging contrast agents, targeted therapeutic delivery systems to multifunctional nanoagents able to target, diagnose, and treat atherosclerosis. Therefore, this review aims to summarize recent progress (2017-now) in the development of nanomaterials and their applications to improve atherosclerosis diagnosis and therapy during the preclinical and clinical stages of the disease.
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Affiliation(s)
- Jun Chen
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Xixi Zhang
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL, United States
| | | | | | - Sean Martin
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Hanjoong Jo
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, United States; Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA, United States
| | - Young-Sup Yoon
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea; Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Brigitta C Brott
- Division of Cardiovascular Disease, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Ho-Wook Jun
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL, United States.
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9
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Hertault A, Chai F, Maton M, Sobocinski J, Woisel P, Maurel B, Lyskawa J, Blanchemain N. In vivo evaluation of a pro-healing polydopamine coated stent through an in-stent restenosis rat model. Biomater Sci 2021; 9:212-220. [PMID: 33179639 DOI: 10.1039/d0bm01204a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Drug-eluting stents have demonstrated efficiency in in-stent restenosis (ISR) but induced a risk of late acute thrombosis by delaying strut re-endothelialization. Polydopamine (PDA), a biocompatible polymer inspired from adhesive proteins of mussels, has been reported to promote endothelial cell (EC) proliferation while limiting SMC proliferation in vitro, thus suggesting the pro-healing potential. This study aimed at evaluating in vivo the impact of the pro-healing PDA-coated stent on ISR and on the quality of the strut re-endothelialization in a rat model. PDA-coated stents demonstrated a significant reduction in ISR in vivo compared to bare metal stents (ratio neointima/media = 0.48 (±0.26) versus 0.83 (±0.42), p < 0.001). Western blot analyses identified a trend towards an increased activation of p38 MAPK phosphorylation and its anti-proliferative effects on vascular SMC that could explain the results observed in morphological analyses. This bioinspired and biocompatible polydopamine layer could intrinsically limit ISR. In addition, according to its latent reactivity, PDA offers the possibility to immobilize some relevant drugs on the PDA-functionalized stent to provide potential synergistic effects.
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Affiliation(s)
- Adrien Hertault
- Univ. Lille, INSERM, CHU Lille, U1008 - Controlled Drug Delivery Systems and Biomaterials, F-59000 Lille, France.
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