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Hussein KH, Ahmadzada B, Correa JC, Sultan A, Wilken S, Amiot B, Nyberg SL. Liver tissue engineering using decellularized scaffolds: Current progress, challenges, and opportunities. Bioact Mater 2024; 40:280-305. [PMID: 38973992 PMCID: PMC11226731 DOI: 10.1016/j.bioactmat.2024.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/30/2024] [Accepted: 06/01/2024] [Indexed: 07/09/2024] Open
Abstract
Liver transplantation represents the only definitive treatment for patients with end-stage liver disease. However, the shortage of liver donors provokes a dramatic gap between available grafts and patients on the waiting list. Whole liver bioengineering, an emerging field of tissue engineering, holds great potential to overcome this gap. This approach involves two main steps; the first is liver decellularization and the second is recellularization. Liver decellularization aims to remove cellular and nuclear materials from the organ, leaving behind extracellular matrices containing different structural proteins and growth factors while retaining both the vascular and biliary networks. Recellularization involves repopulating the decellularized liver with appropriate cells, theoretically from the recipient patient, to reconstruct the parenchyma, vascular tree, and biliary network. The aim of this review is to identify the major advances in decellularization and recellularization strategies and investigate obstacles for the clinical application of bioengineered liver, including immunogenicity of the designed liver extracellular matrices, the need for standardization of scaffold fabrication techniques, selection of suitable cell sources for parenchymal repopulation, vascular, and biliary tree reconstruction. In vivo transplantation models are also summarized for evaluating the functionality of bioengineered livers. Finally, the regulatory measures and future directions for confirming the safety and efficacy of bioengineered liver are also discussed. Addressing these challenges in whole liver bioengineering may offer new solutions to meet the demand for liver transplantation and improve patient outcomes.
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Affiliation(s)
- Kamal H. Hussein
- Department of Surgery, Mayo Clinic, Rochester, MN, United States
- William J. von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, MN, United States
- Department of Surgery, Anesthesiology, and Radiology, College of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Boyukkhanim Ahmadzada
- Department of Surgery, Mayo Clinic, Rochester, MN, United States
- William J. von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, MN, United States
| | - Julio Cisneros Correa
- Department of Surgery, Mayo Clinic, Rochester, MN, United States
- William J. von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, MN, United States
| | - Ahmer Sultan
- Department of Surgery, Mayo Clinic, Rochester, MN, United States
- William J. von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, MN, United States
| | - Silvana Wilken
- Department of Surgery, Mayo Clinic, Rochester, MN, United States
- William J. von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, MN, United States
| | - Bruce Amiot
- Department of Surgery, Mayo Clinic, Rochester, MN, United States
- William J. von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, MN, United States
| | - Scott L. Nyberg
- Department of Surgery, Mayo Clinic, Rochester, MN, United States
- William J. von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, MN, United States
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2
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Asakura T, Shimokawatoko H, Nakazawa Y. Characterization and promotion of endothelialization of Bombyx mori silk fibroin functionalized with REDV peptide. Int J Biol Macromol 2024; 261:129746. [PMID: 38302025 DOI: 10.1016/j.ijbiomac.2024.129746] [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: 10/23/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/03/2024]
Abstract
In the development of small-diameter vascular grafts, it is crucial to achieve early-stage endothelialization to prevent thrombus formation and intimal hyperplasia. Silk fibroin (SF) from Bombyx mori is commonly used for such grafts. However, there is a need to expedite endothelialization post-implantation. In this study, we functionalized SF with Arg-Glu-Asp-Val (REDV) (SF + REDV) using cyanuric chloride to enhance endothelialization. The immobilization of REDV onto SF was confirmed and the amount of immobilized REDV could be calculated by 1H NMR. Furthermore, the conformational changes in Tyr, Ser, and Ala residues in [3-13C]Tyr- and [3-13C]Ser-SF due to REDV immobilization were monitored using 13C solid-state NMR. The REDV immobilized onto the SF film was found to be exposed on the film's surface, as confirmed by biotin-avidin system. Cell culture experiments, including adhesiveness, proliferation, and extensibility, were conducted using normal human umbilical vein endothelial cells (HUVEC) and normal human aortic smooth muscle cells (HAoSMC) on both SF and SF + REDV films to evaluate the impact of REDV on endothelialization. The results indicated a trend towards promoting HUVEC proliferation while inhibiting HAoSMC proliferation. Therefore, these findings suggest that SF + REDV may be more suitable than SF alone for coating small-diameter SF knitted tubes made of SF threads.
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Affiliation(s)
- Tetsuo Asakura
- Department of Biotechnology, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
| | - Haruka Shimokawatoko
- Department of Biotechnology, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Yasumoto Nakazawa
- Department of Biotechnology, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
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3
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Mahara A, Shirai M, Soni R, Le HT, Shimizu K, Hirano Y, Yamaoka T. Vascular tissue reconstruction by monocyte subpopulations on small-diameter acellular grafts via integrin activation. Mater Today Bio 2023; 23:100847. [PMID: 37953756 PMCID: PMC10632538 DOI: 10.1016/j.mtbio.2023.100847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 10/17/2023] [Accepted: 10/26/2023] [Indexed: 11/14/2023] Open
Abstract
Although the clinical application of cell-free tissue-engineered vascular grafts (TEVGs) has been proposed, vascular tissue regeneration mechanisms have not been fully clarified. Here, we report that monocyte subpopulations reconstruct vascular-like tissues through integrin signaling. An Arg-Glu-Asp-Val peptide-modified acellular long-bypass graft was used as the TEVG, and tissue regeneration in the graft was evaluated using a cardiopulmonary pump system and porcine transplantation model. In 1 day, the luminal surface of the graft was covered with cells that expressed CD163, CD14, and CD16, which represented the monocyte subpopulation, and they exhibited proliferative and migratory abilities. RNA sequencing showed that captured cells had an immune-related phenotype similar to that of monocytes and strongly expressed cell adhesion-related genes. In vitro angiogenesis assay showed that tube formation of the captured cells occurred via integrin signal activation. After medium- and long-term graft transplantation, the captured cells infiltrated the tunica media layer and constructed vascular with a CD31/CD105-positive layer and an αSMA-positive structure after 3 months. This finding, including multiple early-time observations provides clear evidence that blood-circulating monocytes are directly involved in vascular remodeling.
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Affiliation(s)
- Atsushi Mahara
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Kishibe Shimmachi, Suita Osaka, 564-8565, Japan
| | - Manabu Shirai
- Omics Research Center, National Cerebral and Cardiovascular Center Research Institute, Kishibe Shimmachi, Suita Osaka, 564-8565, Japan
| | - Raghav Soni
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Kishibe Shimmachi, Suita Osaka, 564-8565, Japan
| | - Hue Thi Le
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Kishibe Shimmachi, Suita Osaka, 564-8565, Japan
| | - Kaito Shimizu
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamatecho, Suita, Osaka, 565-8680, Japan
| | - Yoshiaki Hirano
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamatecho, Suita, Osaka, 565-8680, Japan
| | - Tetsuji Yamaoka
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Kishibe Shimmachi, Suita Osaka, 564-8565, Japan
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4
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Biomimetic and Bioactive Small Diameter Tubular Scaffolds for Vascular Tissue Engineering. Biomimetics (Basel) 2022; 7:biomimetics7040199. [PMID: 36412727 PMCID: PMC9680506 DOI: 10.3390/biomimetics7040199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/03/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
Abstract
The present work aimed at the production and characterization of small caliber biomimetic and bioactive tubular scaffolds, which are able to favor the endothelialization process, and therefore potentially be suitable for vascular tissue engineering. The tubular scaffolds were produced using a specially designed mold, starting from a gelatin/gellan/elastin (GGE) blend, selected to mimic the composition of the extracellular matrix of native blood vessels. GGE scaffolds were obtained through freeze-drying and subsequent cross-linking. To obtain systems capable of promoting endothelization, the scaffolds were functionalized using two different bioactive peptides, Gly-Arg-Gly-Asp-Ser-Pro (GRGSDP) and Arg-Glu-Asp-Val (REDV). A complete physicochemical, mechanical, functional, and biological characterization of the developed scaffolds was performed. GGE scaffolds showed a good porosity, which could promote cell infiltration and proliferation and a dense external surface, which could avoid bleeding. Moreover, developed scaffolds showed good hydrophilicity, an elastic behavior similar to natural vessels, suitability for sterilization by an ISO accepted treatment, and an adequate suture retention strength. In vitro cell culture tests showed no cytotoxic activity against 3T3 fibroblasts. The functionalization with the REDV peptide favored the adhesion and growth of endothelial cells, while GRGDSP-modified scaffolds represented a better substrate for fibroblasts.
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Shan Y, Chen G, Shi Q, Huang J, Mi Y, Zhang W, Zhang H, Jia B. Heparin/Collagen-REDV Modification of Expanded Polytetrafluoroethylene Improves Regional Anti-thrombosis and Reduces Foreign Body Reactions in Local Tissues. Front Bioeng Biotechnol 2022; 10:916931. [PMID: 35992343 PMCID: PMC9386153 DOI: 10.3389/fbioe.2022.916931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 06/07/2022] [Indexed: 11/29/2022] Open
Abstract
Prosthetic implants of expanded polytetrafluoroethylene (ePTFE) in the cardiovascular system have a high failure rate over the long term because of thrombosis and intimal hyperplasia. Although multiple surface modification methods have been applied to improve the anti-thrombotic and in situ endothelialization abilities of ePTFE, none have delivered outstanding results in vivo. Our previous study combined heparin/collagen multilayers and REDV peptides to modify ePTFE, and the in-vitro results showed that modification ePTFE with heparin/collagen-REDV can promote the cytocompatibility and antiplatelet property. This study illustrated the physical change, selective endothelial cells capture ability, and in vivo performance in further. The physical test demonstrated that this modification improved the hydrophilicity, flexibility and strength of ePTFE. A competition experiment of co-cultured endothelial cells and vascular smooth muscle cells verified that the heparin/collagen-REDV modification had high specificity for endothelial cell capture. A rabbit animal model was constructed to evaluate the in vivo performance of modified ePTFE implanted in the right ventricular outflow tract. The results showed that heparin/collagen-REDV modification was safe, promoted endothelialization, and successfully achieved regional anti-thrombosis without influencing body-wide coagulation function. The pathologic manifestations and mRNA expression pattern in tissues in contact with modified ePTFE indicated that this modification method may reduce M2-type macrophage infiltration and the expression of genes related to immune and inflammatory responses. The heparin/collagen-REDV modification may lower the incidence of complications related to ePTFE implantation and has good prospects for clinical use.
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Affiliation(s)
| | | | | | | | | | | | | | - Bing Jia
- *Correspondence: Huifeng Zhang, ; Bing Jia,
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6
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Vascular Polyurethane Prostheses Modified with a Bioactive Coating-Physicochemical, Mechanical and Biological Properties. Int J Mol Sci 2021; 22:ijms222212183. [PMID: 34830063 PMCID: PMC8623365 DOI: 10.3390/ijms222212183] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/06/2021] [Accepted: 11/08/2021] [Indexed: 12/29/2022] Open
Abstract
This study describes a method for the modification of polyurethane small-diameter (5 mm) vascular prostheses obtained with the phase inversion method. The modification process involves two steps: the introduction of a linker (acrylic acid) and a peptide (REDV and YIGSR). FTIR and XPS analysis confirmed the process of chemical modification. The obtained prostheses had a porosity of approx. 60%, Young's Modulus in the range of 9-11 MPa, and a water contact angle around 40°. Endothelial (EC) and smooth muscle (SMC) cell co-culture showed that the surfaces modified with peptides increase the adhesion of ECs. At the same time, SMCs adhesion was low both on unmodified and peptide-modified surfaces. Analysis of blood-materials interaction showed high hemocompatibility of obtained materials. The whole blood clotting time assay showed differences in the amount of free hemoglobin present in blood contacted with different materials. It can be concluded that the peptide coating increased the hemocompatibility of the surface by increasing ECs adhesion and, at the same time, decreasing platelet adhesion. When comparing both types of peptide coatings, more promising results were obtained for the surfaces coated with the YISGR than REDV-coated prostheses.
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7
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Xing Z, Wu S, Zhao C, Bai Y, Jin D, Yin M, Liu H, Fan Y. Vascular transplantation with dual-biofunctional ePTFE vascular grafts in a porcine model. J Mater Chem B 2021; 9:7409-7422. [PMID: 34551061 DOI: 10.1039/d1tb01398j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cardiovascular disease (CVD) poses serious health concerns worldwide. The lack of transplantable vascular grafts is an unmet clinical need in the surgical treatment of CVD. Although expanded polytetrafluoroethylene (ePTFE) vascular grafts have been used in clinical practice, a low long-term patency rate in small-diameter transplantation application is still the biggest challenge. Thus, surface modification of ePTFE is sought after. In this study, polydopamine (PDA) was used to improve the hydrophilia and provide immobilization sites in ePTFE. Bivalirudin (BVLD), a direct thrombin inhibitor, was used to enhance the anti-thrombotic activity of ePTFE. The peptides derived from extracellular matrix proteins were used to elevate the bioactivity of ePTFE. The morphology, chemical composition, peptide modified strength, wettability, and hemocompatibility of modified ePTFE vascular grafts were investigated. Then, an endothelial cell proliferation assay was used to evaluate the best co-modification strategy of the ePTFE vascular graft in vitro. Since a large animal could relatively better mimic human physiology, we chose a porcine carotid artery replacement model in the current study. The results showed that the BVLD/REDV co-modified ePTFE vascular grafts had a satisfactory patency rate (66.7%) and a higher endothelial cell coverage ratio (70%) at 12 weeks after implantation. This may offer an opportunity to produce a multi-biofunctional ePTFE vascular graft, thereby yielding a potent product to meet the clinical needs.
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Affiliation(s)
- Zheng Xing
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University) of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, P. R. China.
| | - Shuting Wu
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P. R. China.
| | - Chen Zhao
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, P. R. China
| | - Yating Bai
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University) of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, P. R. China.
| | - Dawei Jin
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P. R. China.
| | - Meng Yin
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P. R. China.
| | - Haifeng Liu
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University) of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, P. R. China.
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology (Beihang University) of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, P. R. China.
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8
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Dal Sasso E, Zamuner A, Filippi A, Romanato F, Palmosi T, Vedovelli L, Gregori D, Gómez Ribelles JL, Russo T, Gloria A, Iop L, Gerosa G, Dettin M. Covalent functionalization of decellularized tissues accelerates endothelialization. Bioact Mater 2021; 6:3851-3864. [PMID: 33937589 PMCID: PMC8065253 DOI: 10.1016/j.bioactmat.2021.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 03/31/2021] [Accepted: 04/01/2021] [Indexed: 12/17/2022] Open
Abstract
In the field of tissue regeneration, the lack of a stable endothelial lining may affect the hemocompatibility of both synthetic and biological replacements. These drawbacks might be prevented by specific biomaterial functionalization to induce selective endothelial cell (EC) adhesion. Decellularized bovine pericardia and porcine aortas were selectively functionalized with a REDV tetrapeptide at 10−5 M and 10−6 M working concentrations. The scaffold-bound peptide was quantified and REDV potential EC adhesion enhancement was evaluated in vitro by static seeding of human umbilical vein ECs. The viable cells and MTS production were statistically higher in functionalized tissues than in control. Scaffold histoarchitecture, geometrical features, and mechanical properties were unaffected by peptide anchoring. The selective immobilization of REDV was effective in accelerating ECs adhesion while promoting proliferation in functionalized decellularized tissues intended for blood-contacting applications. Covalent functionalization of the decellularized tissues with REDV peptide accelerates endothelialization. New covalent grafting method not inducing collagen cross-linking. Measurements through two photon miscroscopy allow the quantification of biological matrix bound peptide. The decellularized tissues can be changed by chemical procedures to promote specific cellular behaviour with ECM preservation.
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Affiliation(s)
- Eleonora Dal Sasso
- Department of Cardiac, Thoracic and Vascular Sciences and Venetian Institute of Molecular Medicine, Padua, Italy
| | - Annj Zamuner
- Department of Industrial Engineering, University of Padua, Padua, Italy.,LIFELAB Program, Consorzio per la Ricerca Sanitaria, CORIS, Veneto Region, Italy
| | - Andrea Filippi
- LIFELAB Program, Consorzio per la Ricerca Sanitaria, CORIS, Veneto Region, Italy.,Department of Physics and Astronomy "G. Galilei", University of Padua, Padua, Italy.,Fondazione Bruno Kessler, Trento, Italy.,Institute of Pediatric Research Città della Speranza, Padua, Italy
| | - Filippo Romanato
- LIFELAB Program, Consorzio per la Ricerca Sanitaria, CORIS, Veneto Region, Italy.,Department of Physics and Astronomy "G. Galilei", University of Padua, Padua, Italy.,Institute of Pediatric Research Città della Speranza, Padua, Italy
| | - Tiziana Palmosi
- Department of Cardiac, Thoracic and Vascular Sciences and Venetian Institute of Molecular Medicine, Padua, Italy
| | - Luca Vedovelli
- Department of Cardiac, Thoracic and Vascular Sciences and Venetian Institute of Molecular Medicine, Padua, Italy
| | - Dario Gregori
- Department of Cardiac, Thoracic and Vascular Sciences and Venetian Institute of Molecular Medicine, Padua, Italy
| | - José Luís Gómez Ribelles
- Center for Biomaterials and Tissue Engineering, CBIT, Universitat Politècnica de València, València, Spain.,Biomedical Research Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valencia, Spain
| | - Teresa Russo
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
| | - Antonio Gloria
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
| | - Laura Iop
- Department of Cardiac, Thoracic and Vascular Sciences and Venetian Institute of Molecular Medicine, Padua, Italy.,LIFELAB Program, Consorzio per la Ricerca Sanitaria, CORIS, Veneto Region, Italy
| | - Gino Gerosa
- Department of Cardiac, Thoracic and Vascular Sciences and Venetian Institute of Molecular Medicine, Padua, Italy.,LIFELAB Program, Consorzio per la Ricerca Sanitaria, CORIS, Veneto Region, Italy
| | - Monica Dettin
- Department of Industrial Engineering, University of Padua, Padua, Italy.,LIFELAB Program, Consorzio per la Ricerca Sanitaria, CORIS, Veneto Region, Italy
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9
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Endothelial progenitor cells as the target for cardiovascular disease prediction, personalized prevention, and treatments: progressing beyond the state-of-the-art. EPMA J 2020; 11:629-643. [PMID: 33240451 DOI: 10.1007/s13167-020-00223-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 09/11/2020] [Indexed: 02/06/2023]
Abstract
Stimulated by the leading mortalities of cardiovascular diseases (CVDs), various types of cardiovascular biomaterials have been widely investigated in the past few decades. Although great therapeutic effects can be achieved by bare metal stents (BMS) and drug-eluting stents (DES) within months or years, the long-term complications such as late thrombosis and restenosis have limited their further applications. It is well accepted that rapid endothelialization is a promising approach to eliminate these complications. Convincing evidence has shown that endothelial progenitor cells (EPCs) could be mobilized into the damaged vascular sites systemically and achieve endothelial repair in situ, which significantly contributes to the re-endothelialization process. Therefore, how to effectively capture EPCs via specific molecules immobilized on biomaterials is an important point to achieve rapid endothelialization. Further, in the context of predictive, preventive, personalized medicine (PPPM), the abnormal number alteration of EPCs in circulating blood and certain inflammation responses can also serve as important indicators for predicting and preventing early cardiovascular disease. In this contribution, we mainly focused on the following sections: the definition and classification of EPCs, the mechanisms of EPCs in treating CVDs, the potential diagnostic role of EPCs in predicting CVDs, as well as the main strategies for cardiovascular biomaterials to capture EPCs.
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10
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Zhao J, Feng Y. Surface Engineering of Cardiovascular Devices for Improved Hemocompatibility and Rapid Endothelialization. Adv Healthc Mater 2020; 9:e2000920. [PMID: 32833323 DOI: 10.1002/adhm.202000920] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/18/2020] [Indexed: 12/13/2022]
Abstract
Cardiovascular devices have been widely applied in the clinical treatment of cardiovascular diseases. However, poor hemocompatibility and slow endothelialization on their surface still exist. Numerous surface engineering strategies have mainly sought to modify the device surface through physical, chemical, and biological approaches to improve surface hemocompatibility and endothelialization. The alteration of physical characteristics and pattern topographies brings some hopeful outcomes and plays a notable role in this respect. The chemical and biological approaches can provide potential signs of success in the endothelialization of vascular device surfaces. They usually involve therapeutic drugs, specific peptides, adhesive proteins, antibodies, growth factors and nitric oxide (NO) donors. The gene engineering can enhance the proliferation, growth, and migration of vascular cells, thus boosting the endothelialization. In this review, the surface engineering strategies are highlighted and summarized to improve hemocompatibility and rapid endothelialization on the cardiovascular devices. The potential outlook is also briefly discussed to help guide endothelialization strategies and inspire further innovations. It is hoped that this review can assist with the surface engineering of cardiovascular devices and promote future advancements in this emerging research field.
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Affiliation(s)
- Jing Zhao
- School of Chemical Engineering and Technology Tianjin University Yaguan Road 135 Tianjin 300350 P. R. China
| | - Yakai Feng
- School of Chemical Engineering and Technology Tianjin University Yaguan Road 135 Tianjin 300350 P. R. China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin) Yaguan Road 135 Tianjin 300350 P. R. China
- Key Laboratory of Systems Bioengineering (Ministry of Education) Tianjin University Tianjin 300072 P. R. China
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11
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Li P, Li X, Cai W, Chen H, Chen H, Wang R, Zhao Y, Wang J, Huang N. Phospholipid-based multifunctional coating via layer-by-layer self-assembly for biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 116:111237. [PMID: 32806322 DOI: 10.1016/j.msec.2020.111237] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/29/2020] [Accepted: 06/23/2020] [Indexed: 11/28/2022]
Abstract
As an important class of biomaterials,bionics inspired materials has been widely used in creating extracorporeal and implantable medical devices. However, specific service environment is often faced with multiple requirements rather than single function. Herein, we designed a phospholipid-based multifunctional coating with phospholipids-based polymers, type I collagen (Col-I) and Arg-Glu-Asp-Val (REDV) peptide, via layer-by-layer assembly. The successful synthesis of the polymers and the coating is proved by a series of characterization methods including Fourier transforming infrared spectra (FTIR), proton nuclear magnetic resonance (1H NMR), ultraviolet-visible spectra (UV) and X-ray photoelectron spectroscopy (XPS), while the assembly process and quality change of the coating were monitored via quartz crystal microbalance (QCM). Besides, hydrophilicity and roughness of this coating was analyzed via water contact angle (WCA) and atomic force microscope (AFM), respectively. Finally, results from platelet adhesion, activation assay, smooth muscle cells (SMCs) and endothelial cells (ECs) cultures indicated that the multifunctional coating could strongly inhibit platelet adhesion and SMCs proliferation, hence provide practical application of the coating with good biocompatibility, especially the anticoagulant property and cell compatibility. It is expected that this coating may be used in blood-contacting fields such as cardiovascular stent or other devices in the future.
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Affiliation(s)
- Peichuang Li
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Xiaojing Li
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Wanhao Cai
- Institute of Physical Chemistry, Albert-Ludwigs-Universität Freiburg, Albertstraße 23a, 79104 Freiburg, Germany
| | - Huiqing Chen
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Hang Chen
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Rui Wang
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Yuancong Zhao
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Jin Wang
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Nan Huang
- Key Lab. of Advanced Technology for Materials of Education Ministry, Southwest Jiaotong University, Chengdu 610031, China; School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
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12
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Research on alginate-polyacrylamide enhanced amnion hydrogel, a potential vascular substitute material. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 115:111145. [PMID: 32600732 DOI: 10.1016/j.msec.2020.111145] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 05/14/2020] [Accepted: 05/31/2020] [Indexed: 01/07/2023]
Abstract
Although traditional synthetic vascular grafts have good mechanical stability, stenosis and even thrombus can be easily caused at the beginning of transplantation due to the material's procoagulant and low cell adhesion rate. In order to address these problems, by combining acellular amnion gel and polyacrylamide-alginate gel, we gained a composite hydrogel with high elasticity, mechanical stability, high bioactivity and low swelling ratio. The results showed that the composite gel had excellent mechanical strength, resistance to enzymatic degradation and anti-calcification ability. Also, it could significantly inhibit the adhesion, aggregation and activation of platelet and hemolysis. What is more, this composite hydrogel could significantly promote the adhesion and proliferation of ECs, as well as inducing the migration of ECs to the surface of the hydrogel. It could also stimulate the secretion of NO and PGI2 from seeded HUVECs, which were important factors involved in vascular remodelling and repair. All the results indicated that prepared AlgSr/PAM-AM hydrogel was an excellent biomaterial with properties for potential use in vascular repair.
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13
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Peng X, Wang X, Cheng C, Zhou X, Gu Z, Li L, Liu J, Yu X. Bioinspired, Artificial, Small-Diameter Vascular Grafts with Selective and Rapid Endothelialization Based on an Amniotic Membrane-Derived Hydrogel. ACS Biomater Sci Eng 2020; 6:1603-1613. [PMID: 33455393 DOI: 10.1021/acsbiomaterials.9b01493] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Clinical application of the amniotic membrane (AM) in vascular reconstruction was limited by poor processability, rapid biodegradation, and insufficient hemocompatibility. In this work, decellularized AM was digested to a thermosensitive hydrogel and densely cross-linked in the nanoscale as "enhanced" collagenous fibers. Via N-(3-dimehylaminopropyl)-N'-ethylcarbodiimide and N-hydroxysuccinimide (EDC/NHS) catalysis, REDV was further grafted to simulate anticoagulant substances on naturally derived blood vessels. This modification approach endowed AM with rapid endothelialization and rare vascular restenosis. Through adjusting the fixation condition, the pore size and mechanical stability of the fiber network were approximate to those of natural tissues and precisely designed to fit for cell adhesion. AM was synchronously fixed by alginate dialdehyde (ADA) and EDC/NHS, forming a "double-cross-linked" stable structure with significantly improved mechanical strength and resistance against enzymic degradation. The hemolytic and platelet adhesion test indicated that ADA/REDV-AM could inhibit hemolysis and coagulation. It also exhibited excellent cytocompatibility. It selectively accelerated adsorption and migration of endothelial cells (ECs) while impeding adhesion and proliferation of smooth muscle cells (SMCs). It maintained EC superiority in competitive growth and avoided thrombosis in vivo. Furthermore, its property of promoting reconstruction and repair of blood vessels was proved in an animal experiment. Overall, the present study demonstrates that ADA/REDV-AM has potential application as a small-diameter artificial vascular intima with rapid endothelialization and reduced SMC/platelet adhesion.
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Affiliation(s)
- Xu Peng
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China.,Laboratory Animal Center, Sichuan University, Chengdu 610065, China
| | - Xu Wang
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China.,College of Acupuncture and Massage College, Chengdu University of TCM, Chengdu 610065, China
| | - Can Cheng
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Xiong Zhou
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Zhipeng Gu
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Li Li
- Department of Oncology, The 452 Hospital of Chinese PLA, Chengdu, Sichuan 610021, China
| | - Jun Liu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xixun Yu
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
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14
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Ippel BD, Arts B, Keizer HM, Dankers PYW. Combinatorial functionalization with bisurea-peptides and antifouling bisurea additives of a supramolecular elastomeric biomaterial. JOURNAL OF POLYMER SCIENCE. PART B, POLYMER PHYSICS 2019; 57:1725-1735. [PMID: 32025088 PMCID: PMC6988465 DOI: 10.1002/polb.24907] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 11/08/2019] [Accepted: 11/08/2019] [Indexed: 12/13/2022]
Abstract
The bioactive additive toolbox to functionalize supramolecular elastomeric materials expands rapidly. Here we have set an explorative step toward screening of complex combinatorial functionalization with antifouling and three peptide-containing additives in a bisurea-based supramolecular system. Thorough investigation of surface properties of thin films with contact angle measurements, X-ray photoelectron spectroscopy and atomic force microscopy, was correlated to cell-adhesion of endothelial and smooth muscle cells to apprehend their respective predictive values for functional biomaterial development. Peptides were presented at the surface alone, and in combinatorial functionalization with the oligo(ethylene glycol)-based non-cell adhesive additive. The bisurea-RGD additive was cell-adhesive in all conditions, whereas the endothelial cell-specific bisurea-REDV showed limited bioactive properties in all chemical nano-environments. Also, aspecific functionality was observed for a bisurea-SDF1α peptide. These results emphasize that special care should be taken in changing the chemical nano-environment with peptide functionalization. © 2019 The Authors. Journal of Polymer Science Part B: Polymer Physics published by Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2019, 57, 1725-1735.
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Affiliation(s)
- Bastiaan D. Ippel
- Institute for Complex Molecular SystemsEindhoven University of TechnologyPO Box 513 5600EindhovenManitobaThe Netherlands
- Department of Biomedical Engineering, Laboratory for Cell and Tissue EngineeringEindhoven University of TechnologyPO Box 513 5600EindhovenManitobaThe Netherlands
| | - Boris Arts
- Institute for Complex Molecular SystemsEindhoven University of TechnologyPO Box 513 5600EindhovenManitobaThe Netherlands
- Department of Biomedical Engineering, Laboratory of Chemical BiologyEindhoven University of TechnologyPO Box 513, 5600EindhovenManitobaThe Netherlands
| | - Henk M. Keizer
- SyMO‐Chem B.VDen Dolech 2, 5612EindhovenArizonaThe Netherlands
| | - Patricia Y. W. Dankers
- Institute for Complex Molecular SystemsEindhoven University of TechnologyPO Box 513 5600EindhovenManitobaThe Netherlands
- Department of Biomedical Engineering, Laboratory for Cell and Tissue EngineeringEindhoven University of TechnologyPO Box 513 5600EindhovenManitobaThe Netherlands
- Department of Biomedical Engineering, Laboratory of Chemical BiologyEindhoven University of TechnologyPO Box 513, 5600EindhovenManitobaThe Netherlands
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15
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Wang P, Liu J, Shen S, Li Q, Luo X, Xiong P, Gao S, Yan J, Cheng Y, Xi T. In Vitro and in Vivo Studies on Two-Step Alkali-Fluoride-Treated Mg-Zn-Y-Nd Alloy for Vascular Stent Application: Enhancement in Corrosion Resistance and Biocompatibility. ACS Biomater Sci Eng 2019; 5:3279-3292. [PMID: 33405571 DOI: 10.1021/acsbiomaterials.9b00140] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Bioabsorbable magnesium alloys are becoming prominent materials for cardiovascular stents, as their desirable mechanical properties and favorable biosafety. However, the rapid corrosion of magnesium alloys under physiological conditions hinders their wider application as medical implant materials. Fluoride chemical conversion treatment is an effective and simple technique to improve the corrosion resistance for magnesium alloys. Despite previous literature reporting on fluoride chemical conversion treatment with hydrofluoric acid (HF) in different conditions, some defects are still present on the surface of the coating. In this study, we report on a two-step alkali-fluoride treatment of magnesium alloy by effectively removing the second phase in the substrate surface and form a dense and flawless magnesium fluoride (MgF2) coating to endow the magnesium alloy greater corrosion resistance. The results showed that the serious pitting corrosion caused by galvanic corrosion could be effectively prevented after removing of the second phase of the surface. In vivo tests in a rat subcutaneous implantation model showed that two-step alkali-fluoride-treated MgZnYNd alloy (MgZnYNd-A-F) uniformly corroded with a low corrosion rate. No subcutaneous gas cavities or significant inflammatory cell infiltration were observed for MgZnYNd-A-F in in vivo tests. The two-step alkali-fluoride treatment can significantly improve the corrosion resistance and biocompatibility of magnesium alloy, which has great potential in the application of vascular stents because of its simplicity and effectiveness.
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Affiliation(s)
- Pei Wang
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Jing Liu
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Shi Shen
- Department of Orthopedics, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China.,Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Qiyao Li
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, Pennsylvania 16801, United States
| | - Xujiang Luo
- Department of Orthopedics, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China.,Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Pan Xiong
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Shuang Gao
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Jianglong Yan
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Yan Cheng
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Tingfei Xi
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China.,Shenzhen Institute, Peking University, Shenzhen 518055, China
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16
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Goins A, Webb AR, Allen JB. Multi-layer approaches to scaffold-based small diameter vessel engineering: A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 97:896-912. [DOI: 10.1016/j.msec.2018.12.067] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 12/11/2018] [Accepted: 12/20/2018] [Indexed: 12/28/2022]
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17
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Chernonosova VS, Gostev AA, Chesalov YA, Karpenko AA, Karaskov AM, Laktionov PP. Study of hemocompatibility and endothelial cell interaction of tecoflex-based electrospun vascular grafts. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2018.1525721] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Vera S. Chernonosova
- Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, Novosibirsk, Russia
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
| | - Alexander A. Gostev
- Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, Novosibirsk, Russia
| | - Yuriy A. Chesalov
- Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
| | - Andrey A. Karpenko
- Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, Novosibirsk, Russia
| | - Alexander M. Karaskov
- Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, Novosibirsk, Russia
| | - Pavel P. Laktionov
- Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, Novosibirsk, Russia
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
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18
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Trzaskowska PA, Kuźmińska A, Butruk-Raszeja B, Rybak E, Ciach T. Electropolymerized hydrophilic coating on stainless steel for biomedical applications. Colloids Surf B Biointerfaces 2018; 167:499-508. [PMID: 29729627 DOI: 10.1016/j.colsurfb.2018.04.052] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 03/23/2018] [Accepted: 04/25/2018] [Indexed: 01/22/2023]
Abstract
Current metal implants (e.g. stents) covered with drug-eluting coatings are not robust for long-term usage. Other types and methods of coatings are needed, especially ones that are not prone to activity loss in vivo. In this paper, the method of stainless steel (SS) coating with poly(ethylene glycol) dimethacrylate (PEGDMA) with the use of electropolymerization (EP) is presented. The application of a specific and simple reaction mixture enabled the production of SS-PEGDMA materials that possessed a homogenous surface. The polymer coating was durable for 28 days of constant washing. The resulting materials were non-toxic and haemolysis did not occur after incubation with blood. Moreover, because the coating filled up scratches present on bare SS and hydrophilized the SS surface, it reduced fibrinogen adsorption five times in comparison to SS and, unlike on SS, no platelet activation was detected. The presented method is a very promising candidate for scale up due to its simplicity and low cost.
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Affiliation(s)
- Paulina A Trzaskowska
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland; CEZAMAT PW, Poleczki 19, 02-822 Warsaw, Poland.
| | - Aleksandra Kuźmińska
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland.
| | - Beata Butruk-Raszeja
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland.
| | - Ewa Rybak
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland
| | - Tomasz Ciach
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland; CEZAMAT PW, Poleczki 19, 02-822 Warsaw, Poland.
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19
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Shan Y, Jia B, Ye M, Shen H, Chen W, Zhang H. Application of Heparin/Collagen-REDV Selective Active Interface on ePTFE Films to Enhance Endothelialization and Anticoagulation. Artif Organs 2018; 42:824-834. [PMID: 29667205 DOI: 10.1111/aor.13131] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 12/12/2017] [Accepted: 01/25/2018] [Indexed: 12/12/2022]
Abstract
Expanded polytetrafluoroethylene (ePTFE) prosthetic valves have been widely used in clinical applications in Asian countries. However, these valves still have limits with regard to thrombosis, neointimal hyperplasia, restenosis, and valvar vegetation. The achievement of in situ endothelialization on implant materials is a promising way to overcome those limits. Here, heparin/collagen multilayers were fabricated on ePTFE films via a layer-by-layer (LBL) self-assembly technique, and then, the endothelial cell (EC) adhesive peptide sequence Arg-Glu-Asp-Val (REDV) was immobilized on the multilayers. After modification with the heparin/collagen multilayers with or without REDV peptide, less platelet activation and aggregation were observed, the blood coagulation time was increased, and the hemolysis rate was decreased compared to that on pristine ePTFE films. The REDV-functionalized ePTFE films positively impacted early EC adhesion, later cell proliferation and cell activity. The EC barrier was confirmed to be successfully achieved on the functionalized ePTFE film surface in vitro. The successful assembly of the REDV-functionalized heparin/collagen multilayer on ePTFE films improved the blood compatibility, anticoagulant properties, and cell compatibility of the films in vitro, and thus, represents a candidate approach for applications requiring quick in situ endothelialization in vivo.
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Affiliation(s)
- Yaping Shan
- Department of Cardiovascular Center, Children's Hospital of Fudan University, Shanghai, China
| | - Bing Jia
- Department of Cardiovascular Center, Children's Hospital of Fudan University, Shanghai, China
| | - Ming Ye
- Department of Cardiovascular Center, Children's Hospital of Fudan University, Shanghai, China
| | - Hua Shen
- Department of Cardiovascular Center, Children's Hospital of Fudan University, Shanghai, China
| | - Weicheng Chen
- Department of Cardiovascular Center, Children's Hospital of Fudan University, Shanghai, China
| | - Huifeng Zhang
- Department of Cardiovascular Center, Children's Hospital of Fudan University, Shanghai, China
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20
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Wang P, Xiong P, Liu J, Gao S, Xi T, Cheng Y. A silk-based coating containing GREDVY peptide and heparin on Mg-Zn-Y-Nd alloy: improved corrosion resistance, hemocompatibility and endothelialization. J Mater Chem B 2018; 6:966-978. [PMID: 32254377 DOI: 10.1039/c7tb02784b] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Magnesium (Mg) alloys have been intensively investigated as potential absorbable coronary stent materials as their use avoids risks such as late inflammation and restenosis generated by permanent metallic implants. Besides that, clinical trials on coronary stents fabricated from Mg alloys have made great progress recently. However, the over-rapid corrosion rate, magnesium corrosion-induced thrombosis formation and delayed endothelium regeneration continue to be problematic for coronary artery stent therapy. In this study, silk fibroin blended with heparin and GREDVY (Gly-Arg-Glu-Asp-Val-Tyr) peptide was immobilized on a HF-pretreated MgZnYNd alloy surface via a polydopamine layer to improve its corrosion resistance, blood compatibility and endothelialization. Standard electrochemical measurements along with the long-term immersion results indicated that the functionalized MgZnYNd alloy had preferable anti-corrosion abilities compared with the bare MgZnYNd alloy. The modified surface exhibited outstanding hemocompatibility with reduced platelet adhesion, hemolysis rate and prolonged blood coagulation time. Human umbilical vein endothelial cell (HUVEC) and vascular smooth muscle cell (VSMC) co-culture results revealed more attached HUVECs on the functionalized samples than on the MgZnYNd alloy surfaces. The excellent corrosion retardation, hemocompatibility and re-endothelialization of the multi-functional coating indicate a promising method in the field of biodegradable magnesium-based implantable cardiovascular stents.
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Affiliation(s)
- Pei Wang
- Academy for Advanced Interdisciplinary Studies, Peking University, Yi He Yuan Road No. 5, HaiDian District, Beijing 100871, China.
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21
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Ma W, Liu L, Chen H, Zhao Y, Yang P, Huang N. Micropatterned immobilization of membrane-mimicking polymer and peptides for regulation of cell behaviors in vitro. RSC Adv 2018; 8:20836-20850. [PMID: 35542362 PMCID: PMC9080867 DOI: 10.1039/c8ra02607f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 05/28/2018] [Indexed: 11/21/2022] Open
Abstract
The Ti-PDA-M/R(P) biomimetic micropattern was successfully fabricated with PMMPC-HD and GREDVY. The Ti-PDA-M/R(P) micropattern can regulate EC morphology, orientation and functions, and inhibit platelet adhesion and proliferation of SMCs.
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Affiliation(s)
- Wenyong Ma
- Key Laboratory of Advanced Technology of Materials
- Ministry of Education
- School of Material Science and Technology of Southwest Jiaotong University
- Chengdu 610031
- PR China
| | - Luying Liu
- Key Laboratory of Advanced Technology of Materials
- Ministry of Education
- School of Material Science and Technology of Southwest Jiaotong University
- Chengdu 610031
- PR China
| | - Huiqing Chen
- Key Laboratory of Advanced Technology of Materials
- Ministry of Education
- School of Material Science and Technology of Southwest Jiaotong University
- Chengdu 610031
- PR China
| | - Yuancong Zhao
- Key Laboratory of Advanced Technology of Materials
- Ministry of Education
- School of Material Science and Technology of Southwest Jiaotong University
- Chengdu 610031
- PR China
| | - Ping Yang
- Key Laboratory of Advanced Technology of Materials
- Ministry of Education
- School of Material Science and Technology of Southwest Jiaotong University
- Chengdu 610031
- PR China
| | - Nan Huang
- Key Laboratory of Advanced Technology of Materials
- Ministry of Education
- School of Material Science and Technology of Southwest Jiaotong University
- Chengdu 610031
- PR China
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22
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Butruk-Raszeja BA, Trzaskowska PA, Kuźminska A, Ciach T. Polyurethane modification with acrylic acid by Ce(IV)-initiated graft polymerization. OPEN CHEM 2016. [DOI: 10.1515/chem-2016-0020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThis paper presents a method for polyurethane surface functionalization for tissue engineering applications. Functionalization has been carried out by grafting acrylic acid to the polyurethane surface with the use of radical polymerization with a Ce4+ initiator. Contrary to other papers suggesting that the presence of hydroxyl groups are essential for successful grafting via ceric ions, we propose a method with the omission of the surface hydroxylation step. The influence of reaction conditions: reaction time, reaction temperature and monomer concentration on carboxyl groups surface density has been analyzed and described. The quantity of carboxyl groups on the surface was determined with the use of the TBO method. Materials grafted with acrylic acid have been subjected to conjugation with a peptide using sulfoNHS/ EDC chemistry. Successful incorporation of the peptide has been confirmed by an ELISA assay. Additionally, for better characterization, after each step of modification materials were subjected to SEM, FTIR-ATR, XPS and contact angle measurement analysis.
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Affiliation(s)
- Beata A. Butruk-Raszeja
- 1Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
| | - Paulina A. Trzaskowska
- 1Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
| | - Aleksandra Kuźminska
- 1Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
| | - Tomasz Ciach
- 1Laboratory of Biomedical Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
- 2CEZAMAT PW, Polna 50, 00-644 Warsaw, Poland
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23
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Wang C, Zheng Y, Sun Y, Fan J, Qin Q, Zhao Z. A novel biodegradable polyurethane based on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and poly(ethylene glycol) as promising biomaterials with the improvement of mechanical properties and hemocompatibility. Polym Chem 2016. [DOI: 10.1039/c6py01131d] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel biodegradable PHBV-based polyurethane was designed and synthesized by using PHBV, MDI and PEG.
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Affiliation(s)
- Cai Wang
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- PR China
| | - Yudong Zheng
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- PR China
| | - Yi Sun
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- PR China
| | - Jinsheng Fan
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- PR China
| | - Qiujing Qin
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- PR China
| | - Zhenjiang Zhao
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- PR China
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