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Zhou SY, Li L, Xie E, Li MX, Cao JH, Yang XB, Wu DY. Small-diameter PCL/PU vascular graft modified with heparin-aspirin compound for preventing the occurrence of acute thrombosis. Int J Biol Macromol 2023; 249:126058. [PMID: 37524284 DOI: 10.1016/j.ijbiomac.2023.126058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 07/20/2023] [Accepted: 07/28/2023] [Indexed: 08/02/2023]
Abstract
The occurrence of acute thrombosis, directly related to platelet aggregation and coagulant system, is a considerable reason for the failure of small-diameter vascular grafts. Heparin is commonly used as a functional molecule for graft modification due to the strong anticoagulant effect. Unfortunately, heparin cannot directly resist the adhesion and aggregation of platelets. Therefore, we have prepared a heparin-aspirin compound by coupling heparin with aspirin, an antiplatelet drug, and covalently grafted it onto the surface of polycaprolactone/polyurethane composite tube. In this way, the graft not only showed a dual function of both anticoagulation and antiplatelet, but also effectively avoided the rapid drug release and excessive toxicity to other organs caused by simple blending the medicine with material matrix. The compound retained the original function of heparin, showing good hydrophilicity and biocompatibility, which could promote the adhesion and proliferation of endothelial cells (ECs) and facilitate the process of tissue regeneration. What's more, the compound showed more effective than heparin in reducing platelet activation and preventing thrombosis. The graft modified by this compound maintained completely unobstructed for one month of implantation, while severe obstruction or stenosis occurred in PCL/PU and PCL/PU-Hep lumen at the first week, verifying the effect of the compound on preventing acute thrombosis. In general, this study proposed a designing method for small-diameter vascular graft which could prevent acute thrombosis and promote intimal construction.
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Affiliation(s)
- Si-Yuan Zhou
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Lei Li
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
| | - Enzehua Xie
- Department of Cardiovascular Surgery, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100037, PR China
| | - Mei-Xi Li
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jian-Hua Cao
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Xiu-Bin Yang
- Department of Cardiac Surgery, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, PR China.
| | - Da-Yong Wu
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
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2
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Su H, Liu W, Li X, Li G, Guo S, Liu C, Yang T, Ou C, Liu J, Li Y, Wei C, Huang Q, Xu T, Duan C. Cellular energy supply for promoting vascular remodeling of small-diameter vascular grafts: a preliminary study of a new strategy for vascular graft development. Biomater Sci 2023; 11:3197-3213. [PMID: 36928127 DOI: 10.1039/d2bm01338j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
Rapid endothelialization is extremely essential for the success of small-diameter tissue-engineered vascular graft (TEVG) (<6 mm) transplantation. However, severe inflammation in situ often causes cellular energy decline of endothelial cells. The cellular energy supply involved in vascular graft therapy remains unclear, and whether promoting energy supply would be helpful in the regeneration of vascular grafts needs to be established. In our work, we generated an AMPK activator (5-aminoimidazole-4-carboxamide ribonucleotide, AICAR) immobilized vascular graft. AICAR-modified vascular grafts were successfully generated by the co-electrospinning technique. In vitro results indicated that AICAR could upregulate energy supply in endothelial cells and reprogram macrophages (MΦ) to assume an anti-inflammatory phenotype. Furthermore, endothelial cells (ECs) co-cultured with AICAR achieved higher survival rates, better migration, and angiogenic capacity than the controls. Concurrently, a rabbit carotid artery transplantation model was used to investigate AICAR-modified vascular grafts at different time points. The results showed that AICAR-modified vascular grafts had higher patency rates (92.9% and 85.7% at 6 and 12 weeks, respectively) than those of the untreated group (11.1% and 0%). In conclusion, AICAR strengthened the cellular energy state and attenuated the adverse effects of inflammation. AICAR-modified vascular grafts achieved better vascular remodeling. This study provides a new perspective on promoting the regeneration of small-diameter vascular grafts.
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Affiliation(s)
- Hengxian Su
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China.
| | - Wenchao Liu
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China.
| | - Xifeng Li
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China.
| | - Guangxu Li
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China.
| | - Shenquan Guo
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China.
| | - Chang Liu
- Department of Orthopedic Surgery, The Lingnan Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Tao Yang
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China.
| | - Chubin Ou
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China.
| | - Jiahui Liu
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China.
| | - Yuanzhi Li
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China.
| | - Chengcong Wei
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China.
| | - Qing Huang
- Department of Neurosurgery, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, China.
| | - Tao Xu
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Department of Mechanical Engineering and Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China. .,East China Institute of Digital Medical Engineering, Shangrao, 334000, China
| | - Chuanzhi Duan
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China.
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3
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Durán-Rey D, Crisóstomo V, Sánchez-Margallo JA, Sánchez-Margallo FM. Systematic Review of Tissue-Engineered Vascular Grafts. Front Bioeng Biotechnol 2021; 9:771400. [PMID: 34805124 PMCID: PMC8595218 DOI: 10.3389/fbioe.2021.771400] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 10/18/2021] [Indexed: 01/01/2023] Open
Abstract
Pathologies related to the cardiovascular system are the leading causes of death worldwide. One of the main treatments is conventional surgery with autologous transplants. Although donor grafts are often unavailable, tissue-engineered vascular grafts (TEVGs) show promise for clinical treatments. A systematic review of the recent scientific literature was performed using PubMed (Medline) and Web of Science databases to provide an overview of the state-of-the-art in TEVG development. The use of TEVG in human patients remains quite restricted owing to the presence of vascular stenosis, existence of thrombi, and poor graft patency. A total of 92 original articles involving human patients and animal models were analyzed. A meta-analysis of the influence of the vascular graft diameter on the occurrence of thrombosis and graft patency was performed for the different models analyzed. Although there is no ideal animal model for TEVG research, the murine model is the most extensively used. Hybrid grafting, electrospinning, and cell seeding are currently the most promising technologies. The results showed that there is a tendency for thrombosis and non-patency in small-diameter grafts. TEVGs are under constant development, and research is oriented towards the search for safe devices.
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Affiliation(s)
- David Durán-Rey
- Laparoscopy Unit, Jesús Usón Minimally Invasive Surgery Centre, Cáceres, Spain
| | - Verónica Crisóstomo
- Cardiovascular Unit, Jesús Usón Minimally Invasive Surgery Centre, Cáceres, Spain.,Centro de Investigacion Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain
| | - Juan A Sánchez-Margallo
- Bioengineering and Health Technologies Unit, Jesús Usón Minimally Invasive Surgery Centre, Cáceres, Spain
| | - Francisco M Sánchez-Margallo
- Centro de Investigacion Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain.,Scientific Direction, Jesús Usón Minimally Invasive Surgery Centre, Cáceres, Spain
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4
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Evans WS, Sapp RM, Kim KI, Heilman JM, Hagberg J, Prior SJ. Effects of Exercise Training on the Paracrine Function of Circulating Angiogenic Cells. Int J Sports Med 2020; 42:1047-1057. [PMID: 33124014 DOI: 10.1055/a-1273-8390] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Exercise training has various benefits on cardiovascular health, and circulating angiogenic cells have been proposed as executing these changes. Work from the late 1990s supported an important role of these circulating post-natal cells in contributing to the maintenance and repair of the endothelium and vasculature. It was later found that circulating angiogenic cells were a heterogenous population of cells and primarily functioned in a paracrine manner by adhering to damaged endothelium and releasing growth factors. Many studies have discovered novel circulating angiogenic cell secreted proteins, microRNA and extracellular vesicles that mediate their angiogenic potential, and some studies have shown that both acute and chronic aerobic exercise training have distinct benefits. This review highlights work establishing an essential role of secreted factors from circulating angiogenic cells and summarizes studies regarding the effects of exercise training on these factors. Finally, we highlight the various gaps in the literature in hopes of guiding future work.
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Affiliation(s)
- William S Evans
- Department of Kinesiology, University of Maryland School of Public Health, College Park
| | - Ryan M Sapp
- Department of Kinesiology, University of Maryland School of Public Health, College Park
| | - Katherine I Kim
- Department of Kinesiology, University of Maryland School of Public Health, College Park
| | - James M Heilman
- Department of Kinesiology, University of Maryland School of Public Health, College Park
| | - James Hagberg
- Department of Kinesiology, University of Maryland School of Public Health, College Park
| | - Steven J Prior
- Department of Kinesiology, University of Maryland School of Public Health, College Park.,Baltimore Veterans Affairs Geriatric Research, Education and Clinical Center, Department of Veterans Affairs, Baltimore
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5
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Weber C, Reinhardt S, Eghbalzadeh K, Wacker M, Guschlbauer M, Maul A, Sterner-Kock A, Wahlers T, Wippermann J, Scherner M. Patency and in vivo compatibility of bacterial nanocellulose grafts as small-diameter vascular substitute. J Vasc Surg 2018; 68:177S-187S.e1. [DOI: 10.1016/j.jvs.2017.09.038] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 09/17/2017] [Indexed: 10/18/2022]
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6
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Yang J, Wei K, Wang Y, Li Y, Ding N, Huo D, Wang T, Yang G, Yang M, Ju T, Zeng W, Zhu C. Construction of a small-caliber tissue-engineered blood vessel using icariin-loaded β-cyclodextrin sulfate for in situ anticoagulation and endothelialization. SCIENCE CHINA-LIFE SCIENCES 2018; 61:1178-1188. [PMID: 30159681 DOI: 10.1007/s11427-018-9348-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 06/07/2018] [Indexed: 02/06/2023]
Abstract
The rapid endothelialization of tissue-engineered blood vessels (TEBVs) can effectively prevent thrombosis and inhibit intimal hyperplasia. The traditional Chinese medicine ingredient icariin is highly promising for the treatment of cardiovascular diseases. β-cyclodextrin sulfate is a type of hollow molecule that has good biocompatibility and anticoagulation properties and exhibits a sustained release of icariin. We studied whether icariin-loaded β-cyclodextrin sulfate can promote the endothelialization of TEBVs. The experimental results showed that icariin could significantly promote the proliferation and migration of endothelial progenitor cells; at the same time, icariin could promote the migration of rat vascular endothelial cells (RAVECs). Subsequently, we used an electrostatic force to modify the surface of the TEBVs with icariin-loaded β-cyclodextrin sulfate, and these vessels were implanted into the rat common carotid artery. After 3 months, micro-CT results showed that the TEBVs modified using icariin-loaded β-cyclodextrin sulfate had a greater patency rate. Scanning electron microscopy (SEM) and CD31 immunofluorescence results showed a better degree of endothelialization. Taken together, icariin-loaded β-cyclodextrin sulfate can achieve anticoagulation and rapid endothelialization of TEBVs to ensure their long-term patency.
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Affiliation(s)
- Jingyuan Yang
- Department of Anatomy, State Key Laboratory of Trauma, Burn and Combined Injury, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University, Chongqing, 400038, China
| | - Keyu Wei
- Department of Anatomy, State Key Laboratory of Trauma, Burn and Combined Injury, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University, Chongqing, 400038, China
| | - Yeqin Wang
- Department of Anatomy, State Key Laboratory of Trauma, Burn and Combined Injury, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University, Chongqing, 400038, China
| | - Yanzhao Li
- Department of Anatomy, State Key Laboratory of Trauma, Burn and Combined Injury, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University, Chongqing, 400038, China
| | - Ning Ding
- Department of Anatomy, State Key Laboratory of Trauma, Burn and Combined Injury, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University, Chongqing, 400038, China
| | - Da Huo
- Department of Anatomy, State Key Laboratory of Trauma, Burn and Combined Injury, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University, Chongqing, 400038, China
| | - Tianran Wang
- Department of Anatomy, State Key Laboratory of Trauma, Burn and Combined Injury, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University, Chongqing, 400038, China
| | - Guanyuan Yang
- Department of Anatomy, State Key Laboratory of Trauma, Burn and Combined Injury, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University, Chongqing, 400038, China
| | - Mingcan Yang
- Department of Anatomy, State Key Laboratory of Trauma, Burn and Combined Injury, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University, Chongqing, 400038, China
| | - Tan Ju
- Department of Anatomy, State Key Laboratory of Trauma, Burn and Combined Injury, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University, Chongqing, 400038, China
| | - Weng Zeng
- Department of Anatomy, State Key Laboratory of Trauma, Burn and Combined Injury, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University, Chongqing, 400038, China.
| | - Chuhong Zhu
- Department of Anatomy, State Key Laboratory of Trauma, Burn and Combined Injury, National & Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University, Chongqing, 400038, China.
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7
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Huo D, Liu G, Li Y, Wang Y, Guan G, Yang M, Wei K, Yang J, Zeng L, Li G, Zeng W, Zhu C. Construction of Antithrombotic Tissue-Engineered Blood Vessel via Reduced Graphene Oxide Based Dual-Enzyme Biomimetic Cascade. ACS NANO 2017; 11:10964-10973. [PMID: 29035553 DOI: 10.1021/acsnano.7b04836] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Thrombosis is one of the biggest obstacles in the clinical application of small-diameter tissue-engineered blood vessels (TEBVs). The implantation of an unmodified TEBV will lead to platelet aggregation and further activation of the coagulation cascade, in which the high concentration of adenosine diphosphate (ADP) that is released by platelets plays an important role. Inspired by the phenomenon that endothelial cells continuously generate endogenous antiplatelet substances via enzymatic reactions, we designed a reduced graphene oxide (RGO) based dual-enzyme biomimetic cascade to successively convert ADP into adenosine monophosphate (AMP) and AMP into adenosine. We used RGO as a support and bound apyrase and 5'-nucleotidase (5'-NT) on the surface of RGO through covalent bonds, and then, we modified the surface of the collagen-coated decellularized vascular matrix with the RGO-enzyme complexes, in which RGO functions as a platform with a large open surface area and minimal diffusion barriers for substrates/products to integrate two catalytic systems for cascading reactions. The experimental results demonstrate that the two enzymes can synergistically catalyze procoagulant ADP into anticoagulant AMP and adenosine successively under physiological conditions, thus reducing the concentration of ADP. AMP and adenosine can weaken or even reverse the platelet aggregation induced by ADP, thereby inhibiting thrombosis. Adenosine can also accelerate the endothelialization of TEBVs by regulating cellular energy metabolism and optimizing the microenvironment, thus ensuring the antithrombotic function and patency of TEBVs even after the RGO-enzyme complex loses its activity.
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Affiliation(s)
- Da Huo
- Department of Anatomy, State Key Laboratory of Trauma, Burns, and Combined Injury, National and Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University , Chongqing 400038, China
| | - Ge Liu
- Department of Anatomy, State Key Laboratory of Trauma, Burns, and Combined Injury, National and Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University , Chongqing 400038, China
| | - Yanzhao Li
- Department of Anatomy, State Key Laboratory of Trauma, Burns, and Combined Injury, National and Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University , Chongqing 400038, China
| | - Yuxin Wang
- Department of Anatomy, State Key Laboratory of Trauma, Burns, and Combined Injury, National and Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University , Chongqing 400038, China
| | - Ge Guan
- Department of Anatomy, State Key Laboratory of Trauma, Burns, and Combined Injury, National and Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University , Chongqing 400038, China
| | - Mingcan Yang
- Department of Anatomy, State Key Laboratory of Trauma, Burns, and Combined Injury, National and Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University , Chongqing 400038, China
| | - Keyu Wei
- Department of Anatomy, State Key Laboratory of Trauma, Burns, and Combined Injury, National and Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University , Chongqing 400038, China
| | - Jingyuan Yang
- Department of Anatomy, State Key Laboratory of Trauma, Burns, and Combined Injury, National and Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University , Chongqing 400038, China
| | - Lingqin Zeng
- Department of Anatomy, State Key Laboratory of Trauma, Burns, and Combined Injury, National and Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University , Chongqing 400038, China
| | - Gang Li
- Department of Anatomy, State Key Laboratory of Trauma, Burns, and Combined Injury, National and Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University , Chongqing 400038, China
| | - Wen Zeng
- Department of Anatomy, State Key Laboratory of Trauma, Burns, and Combined Injury, National and Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University , Chongqing 400038, China
| | - Chuhong Zhu
- Department of Anatomy, State Key Laboratory of Trauma, Burns, and Combined Injury, National and Regional Engineering Laboratory of Tissue Engineering, State and Local Joint Engineering Laboratory for Vascular Implants, Key Lab for Biomechanics and Tissue Engineering of Chongqing, Third Military Medical University , Chongqing 400038, China
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8
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Li Q, Mu L, Zhang F, Mo Z, Jin C, Qi W. Manufacture and property research of heparin grafted electrospinning PCU artificial vascular scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:854-861. [PMID: 28576059 DOI: 10.1016/j.msec.2017.04.148] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/27/2017] [Accepted: 04/23/2017] [Indexed: 10/19/2022]
Abstract
PCU (polycarbonate polyurethane) is supposed to be an ideal elastomer for manufacturing artificial vessel scaffold with perfect mechanical strength and biocompatibility. Surface grafting by heparin sodium can increase its anticoagulant hemorrhagic, achieving a better application in artificial vessels. Artificial vessels were preliminarily prepared by electrostatic spinning, treated by NH3 plasma and cross-linked with the anticoagulant heparin sodium chemically. Performances of the PCU-Hep (heparin sodium grafted purethane artificial vessels) artificial vessel were calculated through the physical and chemical property tests, evaluation of blood and biocompatibility. Results manifested that heparin sodium was successfully grafted to the vascular surface, porosity, pore diameter and water permeability of the vascular prosthesis fitted the requirements of artificial vessels, the blood test results demonstrated that the vascular material had a low hemolysis, in vitro cytotoxicity experiment and animal experiments proved an excellent biocompatibility. Thus the heparin sodium grafted electrospinning vessels could reduce intravascular thrombus and had potential clinical application.
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Affiliation(s)
- Qing Li
- Qingdao Chunghao Tissue Engineering Co., Ltd., Qingdao 266003, Shangdong Province, China
| | - Lanlan Mu
- Qingdao Chunghao Tissue Engineering Co., Ltd., Qingdao 266003, Shangdong Province, China.
| | - Fenghua Zhang
- Qingdao Chunghao Tissue Engineering Co., Ltd., Qingdao 266003, Shangdong Province, China
| | - Zhichao Mo
- Qingdao Chunghao Tissue Engineering Co., Ltd., Qingdao 266003, Shangdong Province, China
| | - Chuanyu Jin
- Qingdao Chunghao Tissue Engineering Co., Ltd., Qingdao 266003, Shangdong Province, China
| | - Weiguo Qi
- The medical school affiliated hospital of Qingdao University, Qingdao 266003, Shangdong Province, China
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9
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Uzarski JS, Cores J, McFetridge PS. Physiologically Modeled Pulse Dynamics to Improve Function in In Vitro-Endothelialized Small-Diameter Vascular Grafts. Tissue Eng Part C Methods 2015; 21:1125-34. [PMID: 25996580 PMCID: PMC4638211 DOI: 10.1089/ten.tec.2015.0110] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 05/18/2015] [Indexed: 01/01/2023] Open
Abstract
The lack of a functional endothelium on small-diameter vascular grafts leads to intimal hyperplasia and thrombotic occlusion. Shear stress conditioning through controlled hydrodynamics within in vitro perfusion bioreactors has shown promise as a mechanism to drive endothelial cell (EC) phenotype from an activated, pro-inflammatory wound state toward a quiescent functional state that inhibits responses that lead to occlusive failure. As part of an overall design strategy to engineer functional vascular grafts, we present a novel two-phase shear conditioning approach to improve graft endothelialization. Axial rotation was first used to seed uniform EC monolayers onto the lumenal surface of decellularized scaffolds derived from the human umbilical vein. Using computer-controlled perfusion circuits, a flow-ramping paradigm was applied to adapt endothelia to arterial levels of fluid shear stress and pressure without graft denudation. The effects of constant pulse frequencies (CF) on EC quiescence were then compared with pulse frequencies modeled from temporal fluctuations in blood flow observed in vivo, termed physiologically modeled pulse dynamics (PMPD). Constructs exposed to PMPD for 72 h expressed a more functional transcriptional profile, lower metabolic activity (39.8% ± 8.4% vs. 62.5% ± 11.5% reduction, p = 0.012), and higher nitric oxide production (80.42 ± 23.93 vs. 48.75 ± 6.93 nmol/10(5) cells, p = 0.028) than those exposed to CF. By manipulating in vitro flow conditions to mimic natural physiology, endothelialized vascular grafts can be stimulated to express a nonactivated phenotype that would better inhibit peripheral cell adhesion and smooth muscle cell hyperplasia, conditions that typically lead to occlusive failure. Development of robust, functional endothelia on vascular grafts by modulation of environmental conditions within perfusion bioreactors may ultimately improve clinical outcomes in vascular bypass grafting.
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Affiliation(s)
- Joseph S Uzarski
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida , Gainesville, Florida
| | - Jhon Cores
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida , Gainesville, Florida
| | - Peter S McFetridge
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida , Gainesville, Florida
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Chen R, Chen S, Liao J, Chen X, Xu X. MiR-145 facilitates proliferation and migration of endothelial progenitor cells and recanalization of arterial thrombosis in cerebral infarction mice via JNK signal pathway. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:13770-6. [PMID: 26722607 PMCID: PMC4680552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 09/28/2015] [Indexed: 02/05/2023]
Abstract
Arterial thrombosis in cerebral infarction severely affects patients' lives. Classical treatment including surgery and medication both had significantly adverse effects, making it necessary to find novel strategy. Endothelial progenitor cells (EPCs) have been shown to enhance the recanalization of thrombosis, while leaving its molecular mechanism unclear. EPCs were separated from peripheral blood, and were transfected by microRNA (miR)-145. The growth, proliferation and migration abilities were quantified by MTT, clone formation and Transwell assays, respectively. Cell apoptosis was evaluated by flow cytometry. The activation of JNK signaling pathway was measured by Western blotting, followed by JNK inhibitor SP600125. In a mouse cerebral infarction model, miR-145 transfected EPCs were injected to observe the condition of arterial thrombosis. MiR-145 transfection enhanced growth, migration and proliferation of EPCs without induction of apoptosis. MiR-145 exerts its effects via JNK signaling pathway, as the blocking inhibited cell migration/proliferation. In vivo injection of miR-145 transfected EPCs also potentiated cell proliferation and migration, in addition to the recanalization of arterial thrombosis. MiR-145 facilitates proliferation and migration of EPCs and recanalization of arterial thrombosis in cerebral infarction mice via JNK signal pathway. This study provided new insights regarding infarction treatment.
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Affiliation(s)
- Rongbo Chen
- Department of Neurology, The First Affiliated Hospital of Shantou University Medical CollegeShantou 515041, Guangdong, China
| | - Siqia Chen
- Department of Neurology, The First Affiliated Hospital of Shantou University Medical CollegeShantou 515041, Guangdong, China
| | - Juan Liao
- Department of Neurology, The First Affiliated Hospital of Shantou University Medical CollegeShantou 515041, Guangdong, China
| | - Xiaopu Chen
- Department of Neurology, The First Affiliated Hospital of Shantou University Medical CollegeShantou 515041, Guangdong, China
| | - Xiaoling Xu
- Department of Nursing, The First Affiliated Hospital of Shantou University Medical CollegeShantou 515041, Guangdong, China
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