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Sen S, Sharma P, Pal VK, Roy S. Designing Cardin-Motif Peptide and Heparin-Based Multicomponent Advanced Bioactive Hydrogel Scaffolds to Control Cellular Behavior. Biomacromolecules 2023; 24:4923-4938. [PMID: 37909341 DOI: 10.1021/acs.biomac.3c00621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Recently, peptide and sugar-based multicomponent systems have gained much interest in attaining the sophisticated structure and biofunctional complexity of the extracellular matrix (ECM). To this direction, we have designed for the first time a biologically relevant minimalist Cardin-motif peptide capable of binding ECM-derived glycosaminoglycans. Herein, we explored Cardin-motif peptide and heparin-based biomolecular matrix by employing simple noncovalent interactions at the molecular level. Interestingly, this peptide was inadequate to induce hydrogelation at ambient pH due to the presence of basic amino acids. However, addition of heparin successfully triggered its gelation at physiological pH following favorable electrostatic interactions with heparin. Importantly, the newly developed scaffolds displayed tunable nanofibrous morphology and superior mechanical properties as controlled simply by the differential mixing ratio of both biomolecular entities. Additionally, these composite scaffolds could closely mimic the complexity of ECM as they demonstrated superior biocompatibility and enhanced growth and proliferation of neural cells as compared to the peptide scaffold.
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Affiliation(s)
- Sourav Sen
- Institute of Nano Science and Technology (INST), Sector 81, Knowledge City, 140306 Mohali, Punjab India
| | - Pooja Sharma
- Institute of Nano Science and Technology (INST), Sector 81, Knowledge City, 140306 Mohali, Punjab India
| | - Vijay Kumar Pal
- Institute of Nano Science and Technology (INST), Sector 81, Knowledge City, 140306 Mohali, Punjab India
| | - Sangita Roy
- Institute of Nano Science and Technology (INST), Sector 81, Knowledge City, 140306 Mohali, Punjab India
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Cai Z, Tan Z, Tian R, Chen X, Miao P, Yao C, Wang C, Yu Z, Gu Y. Acellular Vascular Scaffolds Preloaded With Heparin and Hepatocyte Growth Factor for Small-Diameter Vascular Grafts Might Inhibit Intimal Hyperplasia. Cell Transplant 2022; 31:9636897221134541. [DOI: 10.1177/09636897221134541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
To develop small-diameter (<6 mm) scaffolds capable of accelerating rapid endothelialization and improving long-term patency rate, we created acellular vascular scaffolds preloaded with heparin and hepatocyte growth factor (HGF). Heparin was conjugated to suppress thrombogenic responses, and HGF was immobilized to induce endothelial cells (ECs) proliferation and migration. The scaffolds immobilized with heparin exhibited highly effective localization and sustained release of HGF for 30 days in vitro. We implanted this modified scaffold into the carotid artery of a rabbit model to investigate the efficacy in vivo. The acellular vascular scaffold with heparin only was used as control. After transplantation, the patency of this modified scaffold was 91.67% at 1, 3, 6, and 12 months, while the patency rate in the group with grafted heparin only was 83.33% at 1, 3, 6, and 12 months. This modified scaffold significantly stimulated ECs proliferation and the endothelium aligned in the direction of flow after 12 months. In addition, intimal hyperplasia was significantly reduced in the grafts coated with HGF compared with the control grafts. The small-diameter vascular grafts with an inner diameter of 2.5 mm preloaded with heparin and HGF may be a substitute for autologous blood vessels in clinic.
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Affiliation(s)
- Zhiwen Cai
- Department of Vascular Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Zhengli Tan
- Department of Vascular Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Ran Tian
- Department of Vascular Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Xin Chen
- Department of Vascular Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Peng Miao
- Department of Vascular Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Chenliang Yao
- Department of Vascular Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Cong Wang
- Department of Vascular Surgery, Xuan Wu Hospital, Capital Medical University, Beijing, China
| | - Zhengya Yu
- Department of Vascular Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Yongquan Gu
- Department of Vascular Surgery, Xuan Wu Hospital, Capital Medical University, Beijing, China
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Li J, Cai Z, Cheng J, Wang C, Fang Z, Xiao Y, Feng ZG, Gu Y. Characterization of a heparinized decellularized scaffold and its effects on mechanical and structural properties. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:999-1023. [PMID: 32138617 DOI: 10.1080/09205063.2020.1736741] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Decellularization is a promising approach in tissue engineering to generate small-diameter blood vessels. However, some challenges still exist. We performed two decellularization phases to develop an optimal decellularized scaffold and analyze the relationship between the extracellular matrix (ECM) composition and mechanical properties. In decellularization phase I, we tested sodium dodecylsulfate (SDS), Triton X-100 (TX100) and trypsin at different concentrations and exposure times. In decellularization phase II, we systematically compared five combined decellularization protocols based on the results of phase I to identify the optimal method. These protocols tested cell removal, ECM preservation, mechanical properties, and residual cytotoxicity. We further immobilized heparin to optimal decellularized scaffolds and determined its anticoagulant activity and mechanical properties. The combined decellularization protocol comprising treatment with 0.5% SDS followed by 1% TX100 could completely remove the cellular contents and preserve the mechanical properties and ECM architecture better. In addition, the heparinized decellularized scaffolds not only had sustained anticoagulant activity, but also similar mechanical properties to native vessels. In conclusion, heparinized decellularized scaffolds represent a promising direction for small-diameter vascular grafts, although further in vivo studies are needed.
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Affiliation(s)
- Ji Li
- Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Zhiwen Cai
- Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jin Cheng
- Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Cong Wang
- Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Zhiping Fang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Yonghao Xiao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Zeng-Guo Feng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Yongquan Gu
- Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
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Lopera Higuita M, Griffiths LG. Small Diameter Xenogeneic Extracellular Matrix Scaffolds for Vascular Applications. TISSUE ENGINEERING PART B-REVIEWS 2019; 26:26-45. [PMID: 31663438 DOI: 10.1089/ten.teb.2019.0229] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Currently, despite the success of percutaneous coronary intervention (PCI), coronary artery bypass graft (CABG) remains among the most commonly performed cardiac surgical procedures in the United States. Unfortunately, the use of autologous grafts in CABG presents a major clinical challenge as complications due to autologous vessel harvest and limited vessel availability pose a significant setback in the success rate of CABG surgeries. Acellular extracellular matrix (ECM) scaffolds derived from xenogeneic vascular tissues have the potential to overcome these challenges, as they offer unlimited availability and sufficient length to serve as "off-the-shelf" CABGs. Unfortunately, regardless of numerous efforts to produce a fully functional small diameter xenogeneic ECM scaffold, the combination of factors required to overcome all failure mechanisms in a single graft remains elusive. This article covers the major failure mechanisms of current xenogeneic small diameter vessel ECM scaffolds, and reviews the recent advances in the field to overcome these failure mechanisms and ultimately develop a small diameter ECM xenogeneic scaffold for CABG. Impact Statement Currently, the use of autologous vessel in coronary artery bypass graft (CABG) is common practice. However, the use of autologous tissue poses significant complications due to tissue harvest and limited availability. Developing an alternative vessel for use in CABG can potentially increase the success rate of CABG surgery by eliminating complications related to the use of autologous vessel. However, this development has been hindered by an array of failure mechanisms that currently have not been overcome. This article describes the currently identified failure mechanisms of small diameter vascular xenogeneic extracellular matrix scaffolds and reviews current research targeted to overcoming these failure mechanisms toward ensuring long-term graft patency.
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Affiliation(s)
| | - Leigh G Griffiths
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota
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Tomášek P, Tonar Z, Grajciarová M, Kural T, Turek D, Horáková J, Pálek R, Eberlová L, Králíčková M, Liška V. Histological mapping of porcine carotid arteries - An animal model for the assessment of artificial conduits suitable for coronary bypass grafting in humans. Ann Anat 2019; 228:151434. [PMID: 31704146 DOI: 10.1016/j.aanat.2019.151434] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 09/12/2019] [Accepted: 10/11/2019] [Indexed: 11/16/2022]
Abstract
BACKGROUND Using animal models in experimental medicine requires mapping of their anatomical variability. Porcine common carotid arteries (CCA) are often preferred for the preclinical testing of vascular grafts due to their anatomical and physiological similarity to human small-diameter arteries. Comparing the microscopic structure of animal model organs to their human counterparts reveals the benefits and limitations of translational medicine. METHODS Using quantitative histology and stereology, we performed an extensive mapping of the regional proximodistal differences in the fractions of elastin, collagen, and smooth muscle actin as well as the intima-media and wall thicknesses among 404 segments (every 1 cm) of porcine CCAs collected from male and female pigs (n = 21). We also compared the microscopic structure of porcine CCAs with segments of human coronary arteries and one of the preferred arterial conduits used for the coronary artery bypass grafting (CABG), namely, the internal thoracic artery (ITA) (n = 21 human cadavers). RESULTS The results showed that the histological structure of left and right porcine CCA can be considered equivalent, provided that gross anatomical variations of the regular branching patterns are excluded. The proximal elastic carotid (51.2% elastin, 4.2% collagen, and 37.2% actin) transitioned to more muscular middle segments (23.5% elastin, 4.9% collagen, 54.3% actin) at the range of 2-3 centimeters and then to even more muscular distal segments (17.2% elastin, 4.9% collagen, 64.0% actin). The resulting morphometric data set shows the biological variability of the artery and is made available for biomechanical modeling and for performing a power analysis and calculating the minimum number of samples per group when planning further experiments with this widely used large animal model. CONCLUSIONS Comparison of porcine carotids with human coronary arteries and ITA revealed the benefits and the limitations of using porcine CCAs as a valid model for testing bioengineered small-diameter CABG vascular conduits. Morphometry of human coronary arteries and ITA provided more realistic data for tailoring multilayered artificial vascular prostheses and the ranges of values within which the conduits should be tested in the future. Despite their limitations, porcine CCAs remain a widely used and well-characterized large animal model that is available for a variety of experiments in vascular surgery.
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Affiliation(s)
- Petr Tomášek
- Department of Histology and Embryology and Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Karlovarska 48, 301 66 Pilsen, Czech Republic; Department of Forensic Medicine, Second Faculty of Medicine, Charles University and Na Bulovce Hospital, Budinova 2, 180 81 Prague, Czech Republic
| | - Zbyněk Tonar
- Department of Histology and Embryology and Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Karlovarska 48, 301 66 Pilsen, Czech Republic.
| | - Martina Grajciarová
- Department of Histology and Embryology and Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Karlovarska 48, 301 66 Pilsen, Czech Republic
| | - Tomáš Kural
- Department of Histology and Embryology and Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Karlovarska 48, 301 66 Pilsen, Czech Republic
| | - Daniel Turek
- First Faculty of Medicine, Charles University in Prague, Katerinska 32, 121 08 Prague 2, Czech Republic; Department of Cardiac Surgery, Institute for Clinical and Experimental Medicine, Videnska 1958/9, 140 21 Prague, Czech Republic
| | - Jana Horáková
- Department of Nonwovens and Nanofibrous Materials, Faculty of Textile Engineering, Technical University of Liberec, Studentska 2, 461 17 Liberec, Czech Republic
| | - Richard Pálek
- Department of Surgery and Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Husova 3, 306 05 Pilsen, Czech Republic
| | - Lada Eberlová
- Department of Anatomy, Faculty of Medicine in Pilsen, Charles University, Karlovarska 48, 301 66 Pilsen, Czech Republic
| | - Milena Králíčková
- Department of Histology and Embryology and Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Karlovarska 48, 301 66 Pilsen, Czech Republic
| | - Václav Liška
- Department of Surgery and Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Husova 3, 306 05 Pilsen, Czech Republic
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Ilanlou S, Khakbiz M, Amoabediny G, Mohammadi J, Rabbani H. Carboxymethyl kappa carrageenan-modified decellularized small-diameter vascular grafts improving thromboresistance properties. J Biomed Mater Res A 2019; 107:1690-1701. [PMID: 30920157 DOI: 10.1002/jbm.a.36684] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/05/2018] [Accepted: 02/21/2019] [Indexed: 11/10/2022]
Abstract
The development of decellularized small-diameter vascular grafts is a potential solution for patients requiring vascular reconstructive procedures. However, there is a limitation for acellular scaffolds due to incomplete recellularization and exposure of extracellular matrix components to whole blood resulting in platelet adhesion. To address this issue, a perfusion decellularization method was developed using a custom-designed set up which completely removed cell nuclei and preserved three-dimensional structure and mechanical properties of native tissue (sheep carotid arteries). Afterwards, carboxymethyl kappa carrageenan (CKC) was introduced as a novel anticoagulant in vascular tissue engineering which can inhibit thrombosis formation. The method enabled uniform immobilization of CKC on decellularized arteries as a result of interaction between amine functional groups of decellularized arteries and carboxyl groups of CKC. The CKC modified graft significantly reduced platelet adhesion from 44.53 ± 2.05% (control) to 19.57 ± 1.37% (modified) and supported endothelial cells viability, proliferation, and nitric oxide production. Overall, the novel CKC modified scaffold provides a promising solution for thrombosis formation of small-diameter vessels and could be a potent graft for future in vivo applications in vascular bypass procedures. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 1690-1701, 2019.
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Affiliation(s)
- Shervin Ilanlou
- Division of Biomedical Engineering, Faculty of New Sciences and Technologies, University of Tehran, North Karegar Ave., PO Box 14395-1561, Tehran, Iran
| | - Mehrdad Khakbiz
- Division of Biomedical Engineering, Faculty of New Sciences and Technologies, University of Tehran, North Karegar Ave., PO Box 14395-1561, Tehran, Iran
| | - Ghasem Amoabediny
- Division of Biomedical Engineering, Faculty of New Sciences and Technologies, University of Tehran, North Karegar Ave., PO Box 14395-1561, Tehran, Iran.,Research Center for New Technologies in Life Science Engineering, University of Tehran, Tehran, Iran.,Faculty of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Javad Mohammadi
- Division of Biomedical Engineering, Faculty of New Sciences and Technologies, University of Tehran, North Karegar Ave., PO Box 14395-1561, Tehran, Iran
| | - Hodjattallah Rabbani
- Monoclonal Antibody Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
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7
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Radke D, Jia W, Sharma D, Fena K, Wang G, Goldman J, Zhao F. Tissue Engineering at the Blood-Contacting Surface: A Review of Challenges and Strategies in Vascular Graft Development. Adv Healthc Mater 2018; 7:e1701461. [PMID: 29732735 PMCID: PMC6105365 DOI: 10.1002/adhm.201701461] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/09/2018] [Indexed: 12/14/2022]
Abstract
Tissue engineered vascular grafts (TEVGs) are beginning to achieve clinical success and hold promise as a source of grafting material when donor grafts are unsuitable or unavailable. Significant technological advances have generated small-diameter TEVGs that are mechanically stable and promote functional remodeling by regenerating host cells. However, developing a biocompatible blood-contacting surface remains a major challenge. The TEVG luminal surface must avoid negative inflammatory responses and thrombogenesis immediately upon implantation and promote endothelialization. The surface has therefore become a primary focus for research and development efforts. The current state of TEVGs is herein reviewed with an emphasis on the blood-contacting surface. General vascular physiology and developmental challenges and strategies are briefly described, followed by an overview of the materials currently employed in TEVGs. The use of biodegradable materials and stem cells requires careful control of graft composition, degradation behavior, and cell recruitment ability to ensure that a physiologically relevant vessel structure is ultimately achieved. The establishment of a stable monolayer of endothelial cells and the quiescence of smooth muscle cells are critical to the maintenance of patency. Several strategies to modify blood-contacting surfaces to resist thrombosis and control cellular recruitment are reviewed, including coatings of biomimetic peptides and heparin.
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Affiliation(s)
- Daniel Radke
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Wenkai Jia
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Dhavan Sharma
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Kemin Fena
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Guifang Wang
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Jeremy Goldman
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Feng Zhao
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
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Gonzalez D, Ragusa J, Angeletti PC, Larsen G. Preparation and characterization of functionalized heparin-loaded poly-Ɛ-caprolactone fibrous mats to prevent infection with human papillomaviruses. PLoS One 2018; 13:e0199925. [PMID: 29966006 PMCID: PMC6028096 DOI: 10.1371/journal.pone.0199925] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 06/15/2018] [Indexed: 12/18/2022] Open
Abstract
In this study, heparin-loaded poly-ɛ-caprolactone (PCL) fibrous mats were prepared and characterized based on their physical, cytotoxic, thermal, and biological properties. The main objective of the work described here was to test the hypothesis that incorporation of heparin into a PCL carrier could serve as bio-compatible material capable of inhibiting Human Papillomavirus (HPV) infection. The idea of firmly anchoring heparin to capture soluble virus, vs. a slow heparin release to inhibit a virus in solution was tested. Thus, one material was produced via conventional heparin matrix encapsulation and electrohydrodynamic fiber processing in one step. A second type of material was obtained via heparin crosslinking. This was achieved by running a carbodiimide/N-hydroxysuccinimide (EDC/NHS) coupling reaction on preformed PCL fibers. In vitro HPV16 L1 protein binding capacity studies were performed. Infectivity assays were done using HPV16 pseudoviruses (PsVs) carrying a GFP plasmid to directly test the ability of the fibrous mats to prevent internalization of HPV PsVs. The crosslinked heparin material presented a dissociation constant (Kd) value comparable to those found in the literature for different heparin-protein L1 peptide interactions. Both materials significantly reduced internalization of HPV PsVs, with a reduction of 94% of PsVs internalization when matrix encapsulated heparin-loaded material was present. Differences in performance between the two proposed structures are discussed.
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Affiliation(s)
- Daniela Gonzalez
- Department of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | - Jorge Ragusa
- Department of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | - Peter C. Angeletti
- Nebraska Center for Virology, School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
- * E-mail: (PCA); (GL)
| | - Gustavo Larsen
- Department of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
- * E-mail: (PCA); (GL)
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NAKAMURA N, KIMURA T, KISHIDA A. Medical Application of Decellularized Tissue-Polymer Complex. KOBUNSHI RONBUNSHU 2018. [DOI: 10.1295/koron.2017-0071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Naoko NAKAMURA
- College of Systems Engineering and Science, Shibaura Institute of Technology
| | - Tsuyoshi KIMURA
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
| | - Akio KISHIDA
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
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Nakamura N, Kimura T, Kishida A. Overview of the Development, Applications, and Future Perspectives of Decellularized Tissues and Organs. ACS Biomater Sci Eng 2016; 3:1236-1244. [DOI: 10.1021/acsbiomaterials.6b00506] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Naoko Nakamura
- Institute of Biomaterials
and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062 Japan
| | - Tsuyoshi Kimura
- Institute of Biomaterials
and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062 Japan
| | - Akio Kishida
- Institute of Biomaterials
and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062 Japan
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11
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Zhang GW, Gu TX, Guan XY, Sun XJ, Qi X, Li XY, Wang XB, Yu L, Jiang DQ, Tang R, Li-Ling J. bFGF binding cardiac extracellular matrix promotes the repair potential of bone marrow mesenchymal stem cells in a rabbit model for acute myocardial infarction. ACTA ACUST UNITED AC 2015; 10:065018. [PMID: 26657457 DOI: 10.1088/1748-6041/10/6/065018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
To assess the effect of basic fibroblast growth factor-binding extracellular matrix (bFGF-ECM) combined with bone marrow mesenchymal stem cells (BMSCs) transplantation on acute myocardial infarction (AMI) and explore the underlying mechenisms. Rabbit hearts were processed by decellularization with sodium dodecyl sulfate (SDS) perfusion, heparin immobilization, bFGF-binding and homogenization, for preparation of bFGF-binding cardiac ECM suspension (bFGF-ECM). Thereafter, the characteristics of bFGF release were analyzed in vitro. Following ligation of the mid-third of the left anterior descending artery, the rabbits were divided into a control group (no treatment), BMSCs group (BMSCs transplantation), bFGF-ECM group (bFGF-ECM implantation), and BMSCs + bFGF-ECM group (BMSCs and bFGF-ECM implantation). Apoptosis and differentiation of implanted BMSCs, and the left ventricular (LV) remodeling and function were assessed. The ex vivo proliferation, apoptosis, migration and differentiation of BMSCs were determined after exposure to bFGF and/or ECM. The ECM could sustainably release bFGF. 24 h and 6 weeks after the operation, improved viability and differentiation of the implanted BMSCs, as well as inhibited dilatation and preserved function of the left ventricle (LV), were significant in the BMSCs + bFGF-ECM group compared with other groups (P < 0.05), although BMSCs and ECM-bFGF groups also showed better results than control group (P < 0.05). Additionally, ECM and bFGF showed a synergistic effect on BMSCs proliferation, viability, migration and differentiation. The combination of bFGF-binding ECM and BMSCs implantation may promote myocardial regeneration and LV function, and become a new strategy for the treatment of AMI.
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Affiliation(s)
- Guang-Wei Zhang
- Department of Cardiac Surgery, The First Affiliated Hospital of China Medical University, Shenyang 110001, People's Republic of China
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12
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Jiang B, Akgun B, Lam RC, Ameer GA, Wertheim JA. A polymer-extracellular matrix composite with improved thromboresistance and recellularization properties. Acta Biomater 2015; 18:50-8. [PMID: 25712388 DOI: 10.1016/j.actbio.2015.02.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 01/30/2015] [Accepted: 02/13/2015] [Indexed: 01/21/2023]
Abstract
Organ engineering using decellularized scaffolds is a potential long-term solution to donor organ shortage. However, this technology is severely limited by small vessel thrombosis due to incompletely recellularized vessels, resulting in exposure of extracellular matrix (ECM) components to platelets and clotting factors in flowing blood. To address this limitation, we designed a polymer-ECM composite and demonstrated its potential to reduce thrombosis and facilitate re-endothelialization in a vascular graft model. Rat aortas were decellularized using a sequential combination of weak detergents followed by a nuclease treatment that resulted in 96.5±1.3% DNA removal, while ECM components and mechanical properties were well maintained. A biodegradable and biocompatible elastomer poly(1,8 octanediol citrate) (POC, 1wt.%) was infused throughout the ECM at mild conditions (37°C and 45°C) and was functionalized with heparin using carbodiimide chemistry. The polymer-ECM composite significantly reduced platelet adhesion (67.4±8.2% and 82.7±9.6% reduction relative to untreated ECM using one of two processing temperatures, 37°C or 45°C, respectively); inhibited whole blood clotting (85.9±4.3% and 87.0±11.9% reduction relative to untreated ECM at 37°C or 45°C processing temperature, respectively); and supported endothelial cell-and to a lesser extent smooth muscle cell-adhesion in vitro. Taken together, this novel POC composite may provide a solution for thrombosis of small vessel conduits commonly seen in decellularized scaffolds used in tissue engineering applications.
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Affiliation(s)
- Bin Jiang
- Biomedical Engineering Department, Northwestern University, Evanston, IL 60201, United States; Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States; Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, United States
| | - Berke Akgun
- Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States; Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, United States
| | - Ryan C Lam
- Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States; Weinberg College of Arts and Sciences, Northwestern University, Evanston, IL, United States
| | - Guillermo A Ameer
- Biomedical Engineering Department, Northwestern University, Evanston, IL 60201, United States; Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, United States; Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60201, United States; Simpson Querrey Institute for BioNanotechnology in Medicine, Northwestern University, Chicago, IL 60611, United States.
| | - Jason A Wertheim
- Biomedical Engineering Department, Northwestern University, Evanston, IL 60201, United States; Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States; Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, United States; Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60201, United States; Simpson Querrey Institute for BioNanotechnology in Medicine, Northwestern University, Chicago, IL 60611, United States; Department of Surgery, Jesse Brown VA Medical Center, Chicago, IL 60612, United States.
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13
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Jo JY, Jeong SI, Shin YM, Kang SS, Kim SE, Jeong CM, Huh JB. Sequential delivery of BMP-2 and BMP-7 for bone regeneration using a heparinized collagen membrane. Int J Oral Maxillofac Surg 2015; 44:921-8. [PMID: 25769221 DOI: 10.1016/j.ijom.2015.02.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 12/31/2014] [Accepted: 02/12/2015] [Indexed: 11/24/2022]
Abstract
To investigate the effect of the sequential delivery of bone morphogenetic proteins BMP-2 and BMP-7 on bone regeneration in rat calvarial defects (40 Sprague-Dawley rats, 8mm defect size), all animals were treated with a hydroxyapatite (HA)/tricalcium phosphate (TCP) bone graft covered with a collagen membrane. The experimental groups were as follows: (1) control group: unmodified collagen (no treatment); (2) BMP-2 group: 5 μg of BMP-2; (3) hep-BMP-7 group: 5 μg BMP-7 chemically bound to heparinized collagen; and (4) BMP-2/hep-BMP-7 group: 2.5 μg BMP-7 bound to heparinized collagen and subsequently treated with 2.5 μg BMP-2. Defect healing was examined at 2 and 8 weeks after surgery. The BMP-2 group showed the largest new bone area at week 2 (29.3 ± 7.3%; P = 0.009); new bone areas in the hep-BMP-7 and BMP-2/hep-BMP-7 groups were similar (11.8 ± 3.4% and 12.9 ± 5.71%, respectively; P = 0.917). After 8 weeks, the BMP-2/hep-BMP-7 group showed the largest new bone area (43.3 ± 6.2%), followed by the BMP-2 and hep-BMP-7 groups (P = 0.013). Accordingly, in comparison with single deliveries of BMP-2 and BMP-7, sequential delivery of BMP-2 and BMP-7 using a heparinized collagen membrane significantly induced new bone formation with a smaller quantity of BMP-2 in rat calvarial defects.
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Affiliation(s)
- J-Y Jo
- Department of Prosthodontics, Dental Research Institute, Biomedical Research Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
| | - S-I Jeong
- Research Division for Industry and Environment, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea
| | - Y-M Shin
- Research Division for Industry and Environment, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea
| | - S-S Kang
- Department of Veterinary Surgery, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - S-E Kim
- Department of Veterinary Surgery, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - C-M Jeong
- Department of Prosthodontics, Dental Research Institute, Biomedical Research Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
| | - J-B Huh
- Department of Prosthodontics, Dental Research Institute, Biomedical Research Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea.
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14
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Dimitrievska S, Cai C, Weyers A, Balestrini JL, Lin T, Sundaram S, Hatachi G, Spiegel DA, Kyriakides TR, Miao J, Li G, Niklason LE, Linhardt RJ. Click-coated, heparinized, decellularized vascular grafts. Acta Biomater 2015; 13:177-87. [PMID: 25463496 DOI: 10.1016/j.actbio.2014.11.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 10/31/2014] [Accepted: 11/07/2014] [Indexed: 10/24/2022]
Abstract
A novel method enabling the engineering of a dense and appropriately oriented heparin-containing layer on decellularized aortas has been developed. Amino groups of decellularized aortas were first modified to azido groups using 3-azidobenzoic acid. Azide-clickable dendrons were attached onto the azido groups through "alkyne-azide" click chemistry, affording a tenfold amplification of adhesions sites. Dendron end groups were finally decorated with end-on modified heparin chains. Heparin chains were oriented like heparan sulfate groups on native endothelial cells surface. X-ray photoelectron spectroscopy, nuclear magnetic resonance imaging, mass spectrometry and Fourier transform infrared FTIR spectroscopy were used to characterize the synthesis steps, building the final heparin layered coatings. The continuity of the heparin coating was verified using fluorescent microscopy and histological analysis. The efficacy of heparin linkage was demonstrated with factor Xa anti-thrombogenic assay and platelet adhesion studies. The results suggest that oriented heparin immobilization to decellularized aortas may improve the in vivo blood compatibility of decellularized aortas and vessels.
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15
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Yin A, Li J, Bowlin GL, Li D, Rodriguez IA, Wang J, Wu T, EI-Hamshary HA, Al-Deyab SS, Mo X. Fabrication of cell penetration enhanced poly (l-lactic acid-co-ɛ-caprolactone)/silk vascular scaffolds utilizing air-impedance electrospinning. Colloids Surf B Biointerfaces 2014; 120:47-54. [DOI: 10.1016/j.colsurfb.2014.04.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 03/13/2014] [Accepted: 04/17/2014] [Indexed: 01/11/2023]
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16
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Wang L, Zhao M, Li S, Erasquin UJ, Wang H, Ren L, Chen C, Wang Y, Cai C. "Click" immobilization of a VEGF-mimetic peptide on decellularized endothelial extracellular matrix to enhance angiogenesis. ACS APPLIED MATERIALS & INTERFACES 2014; 6:8401-8406. [PMID: 24749832 PMCID: PMC4059262 DOI: 10.1021/am501309d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 04/21/2014] [Indexed: 05/29/2023]
Abstract
We show that coating of decellularized extracellular matrix (DC-ECM) on substrate surfaces is an efficient way to generate a platform mimicking the native ECM environment. Moreover, the DC-ECM can be modified with a peptide (QK) mimicking vascular endothelial growth factor without apparently compromising its integrity. The modification was achieved through metabolic incorporation of a "clickable" handle to DC-ECM followed by rapid attachment of the QK peptide with an azido tag using copper-catalyzed click reaction. The attachment of the QK peptide on to DC-ECM in this way further enhanced the angiogenic responses (formation of branched tubular networks) of endothelial cells.
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Affiliation(s)
- Lin Wang
- Department
of Chemistry, University of Houston, Houston, Texas 77204, United States
- Biomaterials
Research Center, South China University
of Technology, Guangzhou 510640, China
| | - Meirong Zhao
- Department
of Chemistry, University of Houston, Houston, Texas 77204, United States
| | - Siheng Li
- Department
of Chemistry, University of Houston, Houston, Texas 77204, United States
| | - Uriel J. Erasquin
- Department
of Chemistry, University of Houston, Houston, Texas 77204, United States
| | - Hao Wang
- Molecular
Surgeon Research Center, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Li Ren
- Biomaterials
Research Center, South China University
of Technology, Guangzhou 510640, China
| | - Changyi Chen
- Molecular
Surgeon Research Center, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Yingjun Wang
- Biomaterials
Research Center, South China University
of Technology, Guangzhou 510640, China
| | - Chengzhi Cai
- Department
of Chemistry, University of Houston, Houston, Texas 77204, United States
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17
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Zheng Y, Chen J, López JA. Microvascular platforms for the study of platelet-vessel wall interactions. Thromb Res 2014; 133:525-31. [PMID: 24438943 DOI: 10.1016/j.thromres.2013.12.039] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 12/30/2013] [Accepted: 12/30/2013] [Indexed: 01/08/2023]
Abstract
Platelets interact with the endothelium to regulate vascular integrity and barrier function, mediate inflammation and immune response, and prevent and arrest hemorrhage. In this review, we describe existing tools to study the flow-dependent interactions of platelets with the vessel wall. We also discuss our work on building engineered microvessels to study the roles of platelets on endothelial barrier function, endothelial sprouting, and thrombus formation on both quiescent and stimulated endothelium. In particular, we will show the advantage of using a cell-remodelable system in the studies of platelet-vessel wall interactions.
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Affiliation(s)
- Ying Zheng
- Department of Bioengineering, University of Washington, Seattle, WA, USA; Center for Cardiovascular Biology, University of Washington, Seattle, WA, USA; Institute of Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA.
| | - Junmei Chen
- Puget Sound Blood Center Research Institute, Seattle, WA, USA
| | - José A López
- Puget Sound Blood Center Research Institute, Seattle, WA, USA; Department of Medicine, University of Washington, Seattle, WA, USA; Department of Biochemistry, University of Washington, Seattle, WA, USA
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18
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Tao Y, Hu T, Wu Z, Tang H, Hu Y, Tan Q, Wu C. Heparin nanomodification improves biocompatibility and biomechanical stability of decellularized vascular scaffolds. Int J Nanomedicine 2012; 7:5847-58. [PMID: 23226016 PMCID: PMC3512543 DOI: 10.2147/ijn.s37113] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Biocompatibility and biomechanical stability are two of the main obstacles limiting the effectiveness of vascular scaffolds. To improve the biomechanical stability and biocompatibility of these scaffolds, we created a heparin-nanomodified acellular bovine jugular vein scaffold by alternating linkage of heparin and dihydroxy-iron via self-assembly. Features of the scaffold were evaluated in vitro and in vivo. Heparin was firmly linked to and formed nanoscale coatings around the fibers of the scaffold, and the amount of heparin linked was about 808 ± 86 μg/cm2 (101 ± 11 USP/cm2) per assembly cycle. The scaffolds showed significantly strengthened biomechanical stability with sustained release of heparin for several weeks in vitro. Importantly, the modified scaffolds showed significantly reduced platelet adhesion, stimulated proliferation of endothelial cells in vitro, and reduced calcification in a subcutaneous implantation rat model in vivo. Heparin nanomodification improves the biocompatibility and biomechanical stability of vascular scaffolds.
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Affiliation(s)
- Yunming Tao
- Department of Thoracic and Cardiovascular Surgery, Second Xiangya Hospital of Central South University, Changsha, People's Republic of China
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19
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Zhou M, Liu Z, Liu C, Jiang X, Wei Z, Qiao W, Ran F, Wang W, Qiao T, Liu C. Tissue engineering of small-diameter vascular grafts by endothelial progenitor cells seeding heparin-coated decellularized scaffolds. J Biomed Mater Res B Appl Biomater 2011; 100:111-20. [PMID: 22113845 DOI: 10.1002/jbm.b.31928] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Revised: 05/22/2011] [Accepted: 06/25/2011] [Indexed: 01/06/2023]
Abstract
Successful construction of a small-diameter bioartificial vascular graft remains a great challenge. This study reports on novel tissue engineering vascular grafts (TEVGs) constructed by endothelial progenitor cells and heparin-coated decellularized vessels (DV). The DVs were fabricated from canine carotid arteries with observable depletion of cellular components. After heparin coating, the scaffolds possessed excellent antithrombogeneity. Canine endothelial progenitor cells harvested from peripheral blood were expanded and seeded onto heparin-coated DVs and cocultured in a custom-made bioreactor to construct TEVGs. Thereafter, the TEVGs were implanted into the carotid arteries of cell-donor dogs. After 3 months of implantation, the luminal surfaces of TEVGs exhibited complete endothelium regeneration, however, only a few disorderly cells and thrombosis overlaid the luminal surfaces of control DVs grafts, and immunofluorescent staining showed that the seeded cells existed in the luminal sides and the medial parts of the explanted TEVGs and partially contributed to the endothelium formation. Specifically, TEVGs exhibited significantly smaller hyperplastic neointima area compared with the DVs, not only at midportion (0.64 ± 0.08 vs. 2.13 ± 0.12 mm(2) , p < 0.001), but also at anastomotic sites (proximal sites, 1.03 ± 0.09 vs. 3.02 ± 0.16 mm(2), p < 0.001; distal sites, 1.84 ± 0.15 vs. 3.35 ± 0.21 mm(2), p < 0.001). Moreover, TEVGs had a significantly higher patency rate than the DVs after 3 months of implantation (19/20 vs. 12/20, p < 0.01). Overall, this study provided a new strategy to develop small-diameter TEVGs with excellent biocompatibility and high patency rate.
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Affiliation(s)
- Min Zhou
- Department of Vascular Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, People's Republic of China
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20
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Stroncek JD, Xue Y, Haque N, Lawson JH, Reichert WM. In vitro functional testing of endothelial progenitor cells that overexpress thrombomodulin. Tissue Eng Part A 2011; 17:2091-100. [PMID: 21466416 DOI: 10.1089/ten.tea.2010.0631] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study investigated the augmentation of endothelial progenitor cell (EPC) thromboresistance by using gene therapy to overexpress thrombomodulin (TM), an endothelial cell membrane glycoprotein that has potent anti-coagulant properties. Late outgrowth EPCs were isolated from peripheral blood of patients with documented coronary artery disease and transfected with an adenoviral vector containing human TM. EPC transfection conditions for maximizing TM expression, transfection efficiency, and cell viability were employed. TM-overexpressing EPCs had a fivefold increase in the rate of activated protein C production over native EPCs and EPCs transfected with an adenoviral control vector expressing β-galactosidase (p<0.05). TM upregulation caused a significant threefold reduction in platelet adhesion compared to native EPCs, and a 12-fold reduction compared to collagen I-coated wells. Additionally, the clotting time of TM-transfected EPCs incubated with whole blood was significantly extended by 19% over native cells (p<0.05). These data indicate that TM-overexpression has the potential to improve the antithrombotic performance of patient-derived EPCs for endothelialization applications.
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Affiliation(s)
- John D Stroncek
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708-0281, USA
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21
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Zhou M, Liu Z, Li K, Qiao W, Jiang X, Ran F, Qiao T, Liu C. Beneficial effects of granulocyte-colony stimulating factor on small-diameter heparin immobilized decellularized vascular graft. J Biomed Mater Res A 2011; 95:600-10. [PMID: 20725964 DOI: 10.1002/jbm.a.32864] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Autologous recellularization of decellularized scaffolds is a promising challenge in the field of tissue-engineered vascular graft and could be boosted by endothelial progenitor cells (EPCs). The purpose of this study was to examine the effects of granulocyte-colony stimulating factor (G-CSF) treatment on this process. Heparin immobilized decellularized grafts were fabricated and implanted into 48 rats, of which 25 rats received G-CSF (50 ug/kg/day) for 14 days after operation (G-CSF group) and other 23 received saline serving as control. Five animals of each group were euthanized at 2 weeks for analysis of early graft endothelialization; whereas the rest were investigated by Doppler ultrasound to monitor the graft patency rate up to 6 months. After 14 days of G-CSF administration, the number of CD(34) (+)/CD(133) (+) progenitor cells was increased by 16.2 folds, and endothelial cell-specific immunostaining revealed an enhancement of early endothelialization in G-CSF group. After 6 months of implantation, the G-CSF treated grafts exhibited a significantly smaller hyperplastic neointima area compared with the controls, not only at midportion (0.38 ± 0.02 vs. 0.47 ± 0.07 mm(2), p < 0.0001), but also at distal anastomosis (0.42 ± 0.04 vs. 0.70 ± 0.13 mm(2), p < 0.0001). Moreover, G-CSF treated grafts had a higher patency rate compared with the control animals (19/20 vs. 12/18, p = 0.005). In conclusion, G-CSF-induced mobilization of circulating EPCs regenerated endothelium and inhibited neointimal hyperplasia of small-diameter heparinized decellularized vascular graft. This cytokine therapy may be a feasible strategy for the improvement of patency rate of the novel allogeneic graft.
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Affiliation(s)
- Min Zhou
- Department of Vascular Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China
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