1
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Liu Z, Zhou Y, Kimura R, Tagaya M. Analytical investigation of nano-bio interfacial protein mediation for fibroblast adhesion on hydroxyapatite nanoparticles. Phys Chem Chem Phys 2023; 25:4025-4034. [PMID: 36649129 DOI: 10.1039/d2cp05025k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A quartz crystal microbalance with dissipation (QCM-D) analysis was used to investigate fetal bovine serum (FBS) protein preadsorption on a hydroxyapatite (HAp) surface and the subsequent adhesion process of fibroblasts as compared with the case of oxidized poly(styrene) (PSox). The results showed that the preadsorption of FBS proteins on HAp promoted the subsequent initial cell adhesion ability. Moreover, the measured frequency (Δf) and dissipation shift (ΔD) curves, ΔD-Δf plots and viscoelastic analysis were used to study the initial cell adhesion process in real time. It was suggested that FBS-HAp showed sensitive changes in mass and viscoelasticity as compared with FBS-PSox, which realized the in situ reflection of the cell adhesion state, and the interfacial reactions between the cells and FBS-HAp surfaces such as dehydration and binding occurred to promote the initial cell adhesion and spreading. The viscoelastic analysis of the interface layer showed that the adhered cells on FBS-HAp could secrete some viscous substances such as extracellular matrix (ECM) proteins at the interfaces to provide good adhesion behaviors, and the Voigt-based viscoelastic model could clearly reveal the cellular interfacial viscoelasticity depending on the substrate surface. In addition, the morphology of cells was observed by confocal laser scanning microscopy (CLSM) and atomic force microscopy (AFM), and it was found that the pseudopodia were more uniformly stretched on FBS-HAp than on FBS-PSox. Furthermore, the state of the interfacial protein layer was analyzed by localized Fourier-transform infrared (FT-IR) spectroscopy and fluorescence microscopy (FLM), and it was indicated that the type of substrate affects the formation state of ECM proteins, resulting in changes in cell adhesion properties and morphology. The abundant formation of connective proteins (i.e., collagen type I) on FBS-HAp promoted subsequent pseudopodia formation and cell spreading. Therefore, the initial adhesion properties of fibroblasts on the FBS-HAp surface were systematically studied, which is of great importance for understanding the interfacial interaction between biomaterials and cells, and has great application value in biomedical fields.
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Affiliation(s)
- Zizhen Liu
- Department of Materials Science and Technology, Graduate School of Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan.
| | - Yanni Zhou
- Department of Materials Science and Technology, Graduate School of Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan.
| | - Reo Kimura
- Department of Materials Science and Technology, Graduate School of Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan.
| | - Motohiro Tagaya
- Department of Materials Science and Technology, Graduate School of Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan.
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2
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Selvakumar PP, Rafuse MS, Johnson R, Tan W. Applying Principles of Regenerative Medicine to Vascular Stent Development. Front Bioeng Biotechnol 2022; 10:826807. [PMID: 35321023 PMCID: PMC8936177 DOI: 10.3389/fbioe.2022.826807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/17/2022] [Indexed: 11/16/2022] Open
Abstract
Stents are a widely-used device to treat a variety of cardiovascular diseases. The purpose of this review is to explore the application of regenerative medicine principles into current and future stent designs. This review will cover regeneration-relevant approaches emerging in the current research landscape of stent technology. Regenerative stent technologies include surface engineering of stents with cell secretomes, cell-capture coatings, mimics of endothelial products, surface topography, endothelial growth factors or cell-adhesive peptides, as well as design of bioresorable materials for temporary stent support. These technologies are comparatively analyzed in terms of their regenerative effects, therapeutic effects and challenges faced; their benefits and risks are weighed up for suggestions about future stent developments. This review highlights two unique regenerative features of stent technologies: selective regeneration, which is to selectively grow endothelial cells on a stent but inhibit the proliferation and migration of smooth muscle cells, and stent-assisted regeneration of ischemic tissue injury.
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Affiliation(s)
| | | | | | - Wei Tan
- University of Colorado Boulder, Boulder, CO, United States
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3
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Olgasi C, Borsotti C, Merlin S, Bergmann T, Bittorf P, Adewoye AB, Wragg N, Patterson K, Calabria A, Benedicenti F, Cucci A, Borchiellini A, Pollio B, Montini E, Mazzuca DM, Zierau M, Stolzing A, Toleikis P, Braspenning J, Follenzi A. Efficient and safe correction of hemophilia A by lentiviral vector-transduced BOECs in an implantable device. Mol Ther Methods Clin Dev 2021; 23:551-566. [PMID: 34853801 PMCID: PMC8606349 DOI: 10.1016/j.omtm.2021.10.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/06/2021] [Accepted: 10/29/2021] [Indexed: 11/18/2022]
Abstract
Hemophilia A (HA) is a rare bleeding disorder caused by deficiency/dysfunction of the FVIII protein. As current therapies based on frequent FVIII infusions are not a definitive cure, long-term expression of FVIII in endothelial cells through lentiviral vector (LV)-mediated gene transfer holds the promise of a one-time treatment. Thus, here we sought to determine whether LV-corrected blood outgrowth endothelial cells (BOECs) implanted through a prevascularized medical device (Cell Pouch) would rescue the bleeding phenotype of HA mice. To this end, BOECs from HA patients and healthy donors were isolated, expanded, and transduced with an LV carrying FVIII driven by an endothelial-specific promoter employing GMP-like procedures. FVIII-corrected HA BOECs were either directly transplanted into the peritoneal cavity or injected into a Cell Pouch implanted subcutaneously in NSG-HA mice. In both cases, FVIII secretion was sufficient to improve the mouse bleeding phenotype. Indeed, FVIII-corrected HA BOECs reached a relatively short-term clinically relevant engraftment being detected up to 16 weeks after transplantation, and their genomic integration profile did not show enrichment for oncogenes, confirming the process safety. Overall, this is the first preclinical study showing the safety and feasibility of transplantation of GMP-like produced LV-corrected BOECs within an implantable device for the long-term treatment of HA.
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Affiliation(s)
- Cristina Olgasi
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
| | - Chiara Borsotti
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
| | - Simone Merlin
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
| | - Thorsten Bergmann
- Department of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97082 Würzburg, Germany
| | - Patrick Bittorf
- Department of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97082 Würzburg, Germany
| | - Adeolu Badi Adewoye
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, B15 2TT Birmingham, UK
| | - Nicholas Wragg
- Guy Hilton Research Centre, School of Pharmacy and Bioengineering, Keele University, Staffordshire, ST47QB Stoke-on-Trent, UK
| | | | | | | | - Alessia Cucci
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
| | - Alessandra Borchiellini
- Haematology Unit Regional Center for Hemorrhagic and Thrombotic Diseases, City of Health and Science University Hospital of Molinette, 10126 Turin, Italy
| | - Berardino Pollio
- Immune-Haematology and Transfusion Medicine, Regina Margherita Children Hospital, City of Health and Science University Hospital of Molinette, 10126 Turin, Italy
| | | | | | - Martin Zierau
- IMS Integrierte Management Systeme e. K., 64646 Heppenheim, Germany
| | - Alexandra Stolzing
- Centre for Biological Engineering, School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, LE113TU Loughborough, UK
- SENS Research Foundation, Mountain View, CA 94041, USA
| | | | - Joris Braspenning
- Department of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97082 Würzburg, Germany
| | - Antonia Follenzi
- Department of Health Sciences, University of Piemonte Orientale, 28100 Novara, Italy
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4
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Liao L, Zhou M, Wang J, Xue X, Deng Y, Zhao X, Peng C, Li Y. Identification of the Antithrombotic Mechanism of Leonurine in Adrenalin Hydrochloride-Induced Thrombosis in Zebrafish via Regulating Oxidative Stress and Coagulation Cascade. Front Pharmacol 2021; 12:742954. [PMID: 34803688 PMCID: PMC8600049 DOI: 10.3389/fphar.2021.742954] [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: 07/17/2021] [Accepted: 10/20/2021] [Indexed: 01/11/2023] Open
Abstract
Thrombosis is a general pathological phenomenon during severe disturbances to homeostasis, which plays an essential role in cardiovascular and cerebrovascular diseases. Leonurine (LEO), isolated from Leonurus japonicus Houtt, showes a crucial role in anticoagulation and vasodilatation. However, the properties and therapeutic mechanisms of this effect have not yet been systematically elucidated. Therefore, the antithrombotic effect of LEO was investigated in this study. Hematoxylin-Eosin staining was used to detect the thrombosis of zebrafish tail. Fluorescence probe was used to detect the reactive oxygen species. The biochemical indexes related to oxidative stress (lactate dehydrogenase, malondialdehyde, superoxide dismutase and glutathione) and vasodilator factor (endothelin-1 and nitric oxide) were analyzed by specific commercial assay kits. Besides, we detected the expression of related genes (fga, fgb, fgg, pkcα, pkcβ, vwf, f2) and proteins (PI3K, phospho-PI3K, Akt, phospho-Akt, ERK, phospho-ERK FIB) related to the anticoagulation and fibrinolytic system by quantitative reverse transcription and western blot. Beyond that, metabolomic analyses were carried out to identify the expressions of metabolites associated with the anti-thrombosis mechanism of LEO. Our in vivo experimental results showed that LEO could improve the oxidative stress injury, abnormal platelet aggregation and coagulation dysfunction induced by adrenalin hydrochloride. Moreover, LEO restored the modulation of amino acids and inositol metabolites which are reported to alleviate the thrombus formation. Collectively, LEO attenuates adrenalin hydrochloride-induced thrombosis partly via modulating oxidative stress, coagulation cascade and platelet activation and amino acid and inositol metabolites.
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Affiliation(s)
- Li Liao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, China
| | - Mengting Zhou
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, China
| | - Jing Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, China
| | - Xinyan Xue
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, China
| | - Ying Deng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, China
| | - Xingtao Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, China
| | - Yunxia Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, China
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5
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Tsukada J, Mela P, Jinzaki M, Tsukada H, Schmitz-Rode T, Vogt F. Development of In Vitro Endothelialised Stents - Review. Stem Cell Rev Rep 2021; 18:179-197. [PMID: 34403073 DOI: 10.1007/s12015-021-10238-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/06/2021] [Indexed: 01/12/2023]
Abstract
Endovascular treatment is prevalent as a primary treatment for coronary and peripheral arterial diseases. Although the introduction of drug-eluting stents (DES) dramatically reduced the risk of in-stent restenosis, stent thrombosis persists as an issue. Notwithstanding improvements in newer generation DES, they are yet to address the urgent clinical need to abolish the late stent complications that result from in-stent restenosis and are associated with late thrombus formation. These often lead to acute coronary syndromes with high mortality in coronary artery disease and acute limb ischemia with a high risk of limb amputation in peripheral arterial disease. Recently, a significant amount of research has focused on alternative solutions to improve stent biocompatibility by using tissue engineering. There are two types of tissue engineering endothelialisation methods: in vitro and in vivo. To date, commercially available in vivo endothelialised stents have failed to demonstrate antithrombotic or anti-stenosis efficacy in clinical trials. In contrast, the in vitro endothelialisation methods exhibit the advantage of monitoring cell type and growth prior to implantation, enabling better quality control. The present review discusses tissue-engineered candidate stents constructed by distinct in vitro endothelialisation approaches, with a particular focus on fabrication processes, including cell source selection, stent material composition, stent surface modifications, efficacy and safety evidence from in vitro and in vivo studies, and future directions.
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Affiliation(s)
- Jitsuro Tsukada
- Department of Diagnostic Radiology, Nihon University School of Medicine, 30-1, Oyaguchikamicho, Itabashi-ku, Tokyo, 173-8610, Japan. .,Department of Diagnostic Radiology, Keio University School of Medicine, 35, Shinanomachi, Shinjyuku-ku, Tokyo, 160-8582, Japan.
| | - P Mela
- Department of Mechanical Engineering and Munich School of BioEngineering, Technical University of Munich, Boltzmannstr. 15, Garching, Munich, 85748, Germany
| | - M Jinzaki
- Department of Diagnostic Radiology, Keio University School of Medicine, 35, Shinanomachi, Shinjyuku-ku, Tokyo, 160-8582, Japan
| | - H Tsukada
- Department of Surgery II, Tokyo Women's Medical University, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - T Schmitz-Rode
- AME - Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Pauwelsstrasse 30, Aachen, 52074, Germany
| | - F Vogt
- Department of Cardiology, University Hospital RWTH Aachen, Pauwelsstrasse 30, Aachen, 52074, Germany
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6
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Tsukada J, Wolf F, Vogt F, Schaaps N, Thoröe-Boveleth S, Keijdener H, Jankowski J, Tsukada H, Jockenhövel S, Jinzaki M, Schmitz-Rode T, Mela P. Development of in vitro endothelialized drug-eluting stent using human peripheral blood-derived endothelial progenitor cells. J Tissue Eng Regen Med 2020; 14:1415-1427. [PMID: 32668066 DOI: 10.1002/term.3107] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 06/05/2020] [Accepted: 07/09/2020] [Indexed: 11/05/2022]
Abstract
We propose in vitro endothelialization of drug-eluting stents (DES) to overcome late stent thrombosis by directly introducing late-outgrowth human endothelial progenitor cells (EPCs) at the target site utilizing abluminal DES. Isolated EPCs were confirmed as late-outgrowth EPCs by flow cytometric analysis. Abluminally paclitaxel-loaded stents were seeded with different cell concentrations and durations to determine optimal seeding conditions, in both uncrimped and crimped configurations. The seeding yield was determined by evaluating the percent coverage of the stent struts' area. The EPC-seeded DES were exposed to arterial shear stress to evaluate the effect of high shear stress on EPCs. To investigate how much paclitaxel elutes during the seeding procedure, a pharmacokinetic analysis was performed. Finally, to validate the proof of concept, EPC-seeded DES were placed on a fibrin matrix with and without smooth muscle cells (SMCs) and cultured for 3 days under perfusion. The seeding procedure resulted in 47% and 26% coverage of the stent surface in uncrimped and crimped conditions, respectively. After the optimal seeding, almost 99% of drug was still available. When EPC-seeded DES were placed on a fibrin matrix and cultured for 3 days, the EPCs confluently covered the stent surface and spread to the surrounding fibrin gel. When EPC-seeded DES were placed on SMC-containing fibrin layers, cells in contact with the struts died. EPCs can be successfully seeded onto DES without losing drug-eluting capability, and EPCs exhibit sufficient proliferative ability. EPC-seeded DES may combine early re-endothelialization ability with the antirestenotic effectiveness of DES.
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Affiliation(s)
- Jitsuro Tsukada
- Department of Diagnostic Radiology, Keio University School of Medicine, Tokyo, Japan.,Department of Radiology, Nihon University School of Medicine, Tokyo, Japan
| | - Frederic Wolf
- Department of Biohybrid & Medical Textiles (Biotex), AME - Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Aachen, Germany
| | - Felix Vogt
- Department of Cardiology, Pneumology, Angiology and Intensive Care, University Hospital RWTH Aachen, Aachen, Germany
| | - Nicole Schaaps
- Department of Cardiology, Pneumology, Angiology and Intensive Care, University Hospital RWTH Aachen, Aachen, Germany
| | - Sven Thoröe-Boveleth
- Institute for Molecular Cardiovascular Research, University Hospital Aachen, RWTH Aachen University, Aachen, Germany
| | - Hans Keijdener
- Department of Biohybrid & Medical Textiles (Biotex), AME - Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Aachen, Germany
| | - Joachim Jankowski
- Institute for Molecular Cardiovascular Research, University Hospital Aachen, RWTH Aachen University, Aachen, Germany
| | - Hiroko Tsukada
- Department of Surgery II, School of Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Stefan Jockenhövel
- Department of Biohybrid & Medical Textiles (Biotex), AME - Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Aachen, Germany
| | - Masahiro Jinzaki
- Department of Diagnostic Radiology, Keio University School of Medicine, Tokyo, Japan
| | - Thomas Schmitz-Rode
- AME - Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Aachen, Germany
| | - Petra Mela
- Department of Biohybrid & Medical Textiles (Biotex), AME - Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Aachen, Germany.,Medical Materials and Implants, Department of Mechanical Engineering and Munich School of BioEngineering, Technical University of Munich, Munich, Germany
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7
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Yuan Y, Khan S, Stewart DJ, Courtman DW. Engineering blood outgrowth endothelial cells to optimize endothelial nitric oxide synthase and extracellular matrix production for coating of blood contacting surfaces. Acta Biomater 2020; 109:109-120. [PMID: 32302726 DOI: 10.1016/j.actbio.2020.04.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 04/06/2020] [Accepted: 04/08/2020] [Indexed: 12/26/2022]
Abstract
Coverage of blood contacting surfaces by a functional endothelial layer is likely required to induce and maintain homeostasis. Blood outgrowth endothelial cells (BOECs), cultured from human peripheral blood monocytes, are readily available and functional autologous endothelial source that may represent a reasonable alternative to vascular derived cells. Endothelial nitric oxide synthase (eNOS) produces NO, an important factor that regulates homeostasis at the blood-contacting surface. We found that BOECs express markedly lower levels of eNOS protein (34% ± 13%, Western blot) and mRNA (29% ± 17%, qRT-PCR), as well as exhibiting reduced activity (49% ± 18%, Nitrite analysis) when compared to human umbilical vein endothelial cells (HUVECs) and human aortic endothelial cells. HUVECs grown on fibronectin, type I collagen, or laminin -coated surfaces exhibited significant reduction of eNOS mRNA and protein expression. However, no decrease in eNOS levels was observed in BOECs. Interestingly BOECs expressed significantly higher Collagen (Col) I compared to HUVECs, and blocking Col I synthesis significantly enhanced eNOS expression in BOECs. Inhibition of β1 integrin, focal adhesion kinase (FAK), or actin polymerization increased eNOS in both BOECs and HUVECs suggesting involvement of a signaling pathway culminating in stabilization of the cytoskeleton. Finally, we demonstrated that a Rho-associated protein kinases (ROCK) inhibitor, as a disruptor of actin stabilization, enhanced both eNOS expression and bioactivity. Taken together, our findings demonstrate that cell-ECM interactions are fundamental to the regulation of eNOS in BOECs and suggest that disruption of key intracellular pathways (such as ROCK) may be necessary to enhance functional activity of an endothelialized surface. STATEMENT OF SIGNIFICANCE: Development of biocompatible blood-contacting biomaterial surfaces has not been possible to date, leading many investigators to believe that a complete autologous endothelial layer will be necessary. Blood outgrowth endothelial cells (BOECs), cultured from human peripheral blood monocytes, are readily available and functional autologous endothelial source. Endothelial nitric oxide synthase (eNOS) produces NO, an important factor that regulates homeostasis at the blood-contacting surface. In this study, we show that eNOS displays limited expression in cultured BOECs. We further demonstrate that a strong negative regulation of eNOS is mediated by collagen substrates and that treatment with ROCK inhibitor could enhance both eNOS expression and activity in BOECs and help to rapidly establish a functional autologous endothelial layer on cardiovascular biomaterials.
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Affiliation(s)
- Yifan Yuan
- Ottawa Hospital Research Institute, General Campus, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada; Department of Anaesthesiology, Yale University, 10 Amistad Rd, New Haven, CT 06519, United States
| | - Saad Khan
- Ottawa Hospital Research Institute, General Campus, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada
| | - Duncan J Stewart
- Ottawa Hospital Research Institute, General Campus, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada; Department of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada
| | - David W Courtman
- Ottawa Hospital Research Institute, General Campus, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada; Department of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada.
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8
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Zhou DM, Sun LL, Zhu J, Chen B, Li XQ, Li WD. MiR-9 promotes angiogenesis of endothelial progenitor cell to facilitate thrombi recanalization via targeting TRPM7 through PI3K/Akt/autophagy pathway. J Cell Mol Med 2020; 24:4624-4632. [PMID: 32147957 PMCID: PMC7176881 DOI: 10.1111/jcmm.15124] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 12/11/2019] [Accepted: 01/06/2020] [Indexed: 12/13/2022] Open
Abstract
Endothelial progenitor cells (EPCs) have emerged as a promising therapeutic choice for thrombi recanalization. However, this role of EPCs is confined by some detrimental factors. The aim of this study was to explore the role of the miR‐9‐5p in regulation of the proliferation, migration and angiogenesis of EPCs and the subsequent therapeutic role in thrombosis event. Wound healing, transwell assay, tube formation assay and in vivo angiogenesis assay were carried out to measure cell migration, invasion and angiogenic abilities, respectively. Western blot was performed to elucidate the relationship between miR‐9‐5p and TRPM7 in the autophagy pathway. It was found that miR‐9‐5p could promote migration, invasion and angiogenesis of EPCs by attenuating TRPM7 expression via activating PI3K/Akt/autophagy pathway. In conclusion, miR‐9‐5p, targets TRPM7 via the PI3K/Ak/autophagy pathway, thereby mediating cell proliferation, migration and angiogenesis in EPCs. Acting as a potential therapeutic target, miR‐9‐5p may play an important role in the prognosis of DVT.
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Affiliation(s)
- Dong-Ming Zhou
- Department of Hematology, The Affiliated Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - Li-Li Sun
- Department of Vascular Surgery, The Affiliated Drum Tower Hospital, Nanjing University Medical School, Nanjing, China.,Department of Vascular Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Jian Zhu
- Department of Vascular Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Bing Chen
- Department of Hematology, The Affiliated Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - Xiao-Qiang Li
- Department of Vascular Surgery, The Affiliated Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - Wen-Dong Li
- Department of Vascular Surgery, The Affiliated Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
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9
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Dal Sasso E, Bagno A, Scuri STG, Gerosa G, Iop L. The Biocompatibility Challenges in the Total Artificial Heart Evolution. Annu Rev Biomed Eng 2019; 21:85-110. [PMID: 30795701 DOI: 10.1146/annurev-bioeng-060418-052432] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
There are limited therapeutic options for final treatment of end-stage heart failure. Among them, implantation of a total artificial heart (TAH) is an acceptable strategy when suitable donors are not available. TAH development began in the 1930s, followed by a dramatic evolution of the actuation mechanisms operating the mechanical pumps. Nevertheless, the performance of TAHs has not yet been optimized, mainly because of the low biocompatibility of the blood-contacting surfaces. Low hemocompatibility, calcification, and sensitivity to infections seriously affect the success of TAHs. These unsolved issues have led to the withdrawal of many prototypes during preclinical phases of testing. This review offers a comprehensive analysis of the pathophysiological events that may occur in the materials that compose TAHs developed to date. In addition, this review illustrates bioengineering strategies to prevent these events and describes the most significant steps toward the achievement of a fully biocompatible TAH.
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Affiliation(s)
- Eleonora Dal Sasso
- Cardiovascular Regenerative Medicine Group, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua and Veneto Institute of Molecular Medicine, 35128 Padua, Italy; , , .,Padua Heart Project, Division of Cardiac Surgery, University Hospital of Padua, 35128 Padua, Italy;
| | - Andrea Bagno
- Department of Industrial Engineering, University of Padua, 35128 Padua, Italy;
| | - Silvia T G Scuri
- Padua Heart Project, Division of Cardiac Surgery, University Hospital of Padua, 35128 Padua, Italy;
| | - Gino Gerosa
- Cardiovascular Regenerative Medicine Group, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua and Veneto Institute of Molecular Medicine, 35128 Padua, Italy; , , .,Padua Heart Project, Division of Cardiac Surgery, University Hospital of Padua, 35128 Padua, Italy;
| | - Laura Iop
- Cardiovascular Regenerative Medicine Group, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua and Veneto Institute of Molecular Medicine, 35128 Padua, Italy; , , .,Padua Heart Project, Division of Cardiac Surgery, University Hospital of Padua, 35128 Padua, Italy;
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10
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Tefft BJ, Uthamaraj S, Harbuzariu A, Harburn JJ, Witt TA, Newman B, Psaltis PJ, Hlinomaz O, Holmes DR, Gulati R, Simari RD, Dragomir-Daescu D, Sandhu GS. Nanoparticle-Mediated Cell Capture Enables Rapid Endothelialization of a Novel Bare Metal Stent. Tissue Eng Part A 2018; 24:1157-1166. [PMID: 29431053 DOI: 10.1089/ten.tea.2017.0404] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Incomplete endothelialization of intracoronary stents has been associated with stent thrombosis and recurrent symptoms, whereas prolonged use of dual antiplatelet therapy increases bleeding-related adverse events. Facilitated endothelialization has the potential to improve clinical outcomes in patients who are unable to tolerate dual antiplatelet therapy. The objective of this study was to demonstrate the feasibility of magnetic cell capture to rapidly endothelialize intracoronary stents in a large animal model. A novel stent was developed from a magnetizable duplex stainless steel (2205 SS). Polylactic-co-glycolic acid and magnetite (Fe3O4) were used to synthesize biodegradable superparamagnetic iron oxide nanoparticles, and these were used to label autologous blood outgrowth endothelial cells. Magnetic 2205 SS and nonmagnetic 316L SS control stents were implanted in the coronary arteries of pigs (n = 11), followed by intracoronary delivery of magnetically labeled cells to 2205 SS stents. In this study, we show extensive endothelialization of magnetic 2205 SS stents (median 98.4% cell coverage) within 3 days, whereas the control 316L SS stents exhibited significantly less coverage (median 48.9% cell coverage, p < 0.0001). This demonstrates the ability of intracoronary delivery of magnetic nanoparticle labeled autologous endothelial cells to improve endothelialization of magnetized coronary stents within 3 days of implantation.
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Affiliation(s)
- Brandon J Tefft
- 1 Department of Cardiovascular Medicine, Mayo Clinic , Rochester, Minnesota
| | | | - Adriana Harbuzariu
- 1 Department of Cardiovascular Medicine, Mayo Clinic , Rochester, Minnesota
| | - J Jonathan Harburn
- 3 School of Pharmacy & Institute of Cellular Medicine, Newcastle University , Newcastle-upon-Tyne, United Kingdom
| | - Tyra A Witt
- 1 Department of Cardiovascular Medicine, Mayo Clinic , Rochester, Minnesota
| | - Brant Newman
- 2 Division of Engineering, Mayo Clinic , Rochester, Minnesota
| | - Peter J Psaltis
- 4 Vascular Research Centre, South Australian Health and Medical Research Institute , Adelaide, Australia .,5 School of Medicine, University of Adelaide , Adelaide, Australia
| | - Ota Hlinomaz
- 6 Department of Cardioangiology, St. Anne's University Hospital , Brno, Czech Republic
| | - David R Holmes
- 1 Department of Cardiovascular Medicine, Mayo Clinic , Rochester, Minnesota
| | - Rajiv Gulati
- 1 Department of Cardiovascular Medicine, Mayo Clinic , Rochester, Minnesota
| | - Robert D Simari
- 1 Department of Cardiovascular Medicine, Mayo Clinic , Rochester, Minnesota
| | - Dan Dragomir-Daescu
- 7 Department of Physiology and Biomedical Engineering, Mayo Clinic , Rochester, Minnesota
| | - Gurpreet S Sandhu
- 1 Department of Cardiovascular Medicine, Mayo Clinic , Rochester, Minnesota
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11
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Shear stress: An essential driver of endothelial progenitor cells. J Mol Cell Cardiol 2018; 118:46-69. [PMID: 29549046 DOI: 10.1016/j.yjmcc.2018.03.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 03/08/2018] [Accepted: 03/09/2018] [Indexed: 02/06/2023]
Abstract
The blood flow through vessels produces a tangential, or shear, stress sensed by their innermost layer (i.e., endothelium) and representing a major hemodynamic force. In humans, endothelial repair and blood vessel formation are mainly performed by circulating endothelial progenitor cells (EPCs) characterized by a considerable expression of vascular endothelial growth factor receptor 2 (VEGFR2), CD34, and CD133, pronounced tube formation activity in vitro, and strong reendothelialization or neovascularization capacity in vivo. EPCs have been proposed as a promising agent to induce reendothelialization of injured arteries, neovascularization of ischemic tissues, and endothelialization or vascularization of bioartificial constructs. A number of preconditioning approaches have been suggested to improve the regenerative potential of EPCs, including the use of biophysical stimuli such as shear stress. However, in spite of well-defined influence of shear stress on mature endothelial cells (ECs), articles summarizing how it affects EPCs are lacking. Here we discuss the impact of shear stress on homing, paracrine effects, and differentiation of EPCs. Unidirectional laminar shear stress significantly promotes homing of circulating EPCs to endothelial injury sites, induces anti-thrombotic and anti-atherosclerotic phenotype of EPCs, increases their capability to form capillary-like tubes in vitro, and enhances differentiation of EPCs into mature ECs in a dose-dependent manner. These effects are mediated by VEGFR2, Tie2, Notch, and β1/3 integrin signaling and can be abrogated by means of complementary siRNA/shRNA or selective pharmacological inhibitors of the respective proteins. Although the testing of sheared EPCs for vascular tissue engineering or regenerative medicine applications is still an unaccomplished task, favorable effects of unidirectional laminar shear stress on EPCs suggest its usefulness for their preconditioning.
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12
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Point-of-Care Rapid-Seeding Ventricular Assist Device with Blood-Derived Endothelial Cells to Create a Living Antithrombotic Coating. ASAIO J 2017; 62:447-53. [PMID: 26809085 DOI: 10.1097/mat.0000000000000351] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The most promising alternatives to heart transplantation are left ventricular assist devices and artificial hearts; however, their use has been limited by thrombotic complications. To reduce these, sintered titanium (Ti) surfaces were developed, but thrombosis still occurs in approximately 7.5% of patients. We have invented a rapid-seeding technology to minimize the risk of thrombosis by rapid endothelialization of sintered Ti with human cord blood-derived endothelial cells (hCB-ECs). Human cord blood-derived endothelial cells were seeded within minutes onto sintered Ti and exposed to thrombosis-prone low fluid flow shear stresses. The hCB-ECs adhered and formed a confluent endothelial monolayer on sintered Ti. The exposure of sintered Ti to 4.4 dynes/cm for 20 hr immediately after rapid seeding resulted in approximately 70% cell adherence. The cell adherence was not significantly increased by additional ex vivo static culture of rapid-seeded sintered Ti before flow exposure. In addition, adherent hCB-ECs remained functional on sintered Ti, as indicated by flow-induced increase in nitric oxide secretion and reduction in platelet adhesion. After 15 day ex vivo static culture, the adherent hCB-ECs remained metabolically active, expressed endothelial cell functional marker thrombomodulin, and reduced platelet adhesion. In conclusion, our results demonstrate the feasibility of rapid-seeding sintered Ti with blood-derived hCB-ECs to generate a living antithrombotic surface.
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13
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Li J, Zhang K, Huang N. Engineering Cardiovascular Implant Surfaces to Create a Vascular Endothelial Growth Microenvironment. Biotechnol J 2017; 12. [PMID: 28941232 DOI: 10.1002/biot.201600401] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 09/14/2017] [Indexed: 12/16/2022]
Abstract
Cardiovascular disease (CVD) is generally accepted as the leading cause of morbidity and mortality worldwide, and an increasing number of patients suffer from atherosclerosis and thrombosis annually. To treat these disorders and prolong the sufferers' life, several cardiovascular implants have been developed and applied clinically. Nevertheless, thrombosis and hyperplasia at the site of cardiovascular implants are recognized as long-term problems in the practice of interventional cardiology. Here, we start this review from the clinical requirement of the implants, such as anti-hyperplasia, anti-thrombosis, and pro-endothelialization, wherein particularly focus on the natural factors which influence functional endothelialization in situ, including the healthy smooth muscle cells (SMCs) environment, blood flow shear stress (BFSS), and the extracellular matrix (ECM) microenvironment. Then, the currently available strategies on surface modification of cardiovascular biomaterials to create vascular endothelial growth microenvironment are introduced as the main topic, e.g., BFSS effect simulation by surface micro-patterning, ECM rational construction and SMCs phenotype maintain. Finally, the prospects for extending use of the in situ construction of endothelial cells growth microenvironment are discussed and summarized in designing the next generation of vascular implants.
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Affiliation(s)
- Jingan Li
- School of Materials Science and Engineering, Zhengzhou University, 100 Science Road, Zhengzhou 450001, PR China.,Key Lab. for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Kun Zhang
- Key Lab. for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China.,School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou 450001, PR China
| | - Nan Huang
- Key Lab. for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
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14
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Ter Meer M, Daamen WF, Hoogeveen YL, van Son GJF, Schaffer JE, van der Vliet JA, Kool LJS, van den Heuvel LP. Continuously Grooved Stent Struts for Enhanced Endothelial Cell Seeding. Cardiovasc Intervent Radiol 2017; 40:1237-1245. [PMID: 28470391 PMCID: PMC5489614 DOI: 10.1007/s00270-017-1659-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Accepted: 04/21/2017] [Indexed: 02/04/2023]
Abstract
Purpose Implantation of pre-endothelialized stents could enhance cellular recovery of a damaged vessel wall provided attached cells remain viable, functional and are present in sufficient numbers after deployment. The purpose of this study was to evaluate the feasibility of grooved stainless steel (SS) stents as a primary endothelial cell (EC) carrier with potentially enhanced EC protection upon stent deployment. Materials and Methods Attachment and behavior of enzymatically harvested human adult venous ECs seeded onto gelatin-coated vascular stents were evaluated in an in vitro setting. Smooth and grooved SS stents and smooth nitinol stents were studied. Results All cells expressed EC markers vWF and CD31. Using rotational seeding for a period of 16–24 h, ECs attached firmly to the stents with sufficient coverage to form a confluent EC monolayer. The grooved SS wire design was found to enable attachment of three times the number of cells compared to smooth wires. This also resulted in an increased number of cells remaining on the stent after deployment and after pulsatile flow of 180 ml/min for 24 h, which did not result in additional EC detachment. Conclusions The grooved stent provides a potential percutaneous means to deliver sufficient numbers of viable and functional cells to a vessel segment during vascular intervention. The grooves were found to offer a favorable surface for EC attachment and protection during stent deployment in an in vitro setting. Electronic supplementary material The online version of this article (doi:10.1007/s00270-017-1659-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Marja Ter Meer
- Department of Radiology and Nuclear Medicine (766), Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands.
| | - Willeke F Daamen
- Department of Biochemistry 280, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Yvonne L Hoogeveen
- Department of Radiology and Nuclear Medicine (766), Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Gijs J F van Son
- Department of Radiology and Nuclear Medicine (766), Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Jeremy E Schaffer
- Fort Wayne Metals, Research and Development, 9609 Ardmore Avenue, Fort Wayne, IN, 46809, USA
| | - J Adam van der Vliet
- Department of Surgery 618, Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Leo J Schultze Kool
- Department of Radiology and Nuclear Medicine (766), Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Lambertus P van den Heuvel
- Department of Pediatrics/Pediatric Nephrology 774, Radboud University Medical Center, PO Box 9101, 6500 HB, Nijmegen, The Netherlands.,Department of Development and Regeneration/Pediatrics, Catholic University Leuven, PO Box 7003, 3000, Leuven, Belgium
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15
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Tasev D, Koolwijk P, van Hinsbergh VWM. Therapeutic Potential of Human-Derived Endothelial Colony-Forming Cells in Animal Models. TISSUE ENGINEERING PART B-REVIEWS 2016; 22:371-382. [PMID: 27032435 DOI: 10.1089/ten.teb.2016.0050] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE OF REVIEW Tissue regeneration requires proper vascularization. In vivo studies identified that the endothelial colony-forming cells (ECFCs), a subtype of endothelial progenitor cells that can be isolated from umbilical cord or peripheral blood, represent a promising cell source for therapeutic neovascularization. ECFCs not only are able to initiate and facilitate neovascularization in diseased tissue but also can, by acting in a paracrine manner, contribute to the creation of favorable conditions for efficient and appropriate differentiation of tissue-resident stem or progenitor cells. This review outlines the progress in the field of in vivo regenerative and tissue engineering studies and surveys why, when, and how ECFCs can be used for tissue regeneration. RECENT FINDINGS Reviewed literature that regard human-derived ECFCs in xenogeneic animal models implicates that ECFCs should be considered as an endothelial cell source of preference for induction of neovascularization. Their neovascularization and regenerative potential is augmented in combination with other types of stem or progenitor cells. Biocompatible scaffolds prevascularized with ECFCs interconnect faster and better with the host vasculature. The physical incorporation of ECFCs in newly formed blood vessels grants prolonged release of trophic factors of interest, which also makes ECFCs an interesting cell source candidate for gene therapy and delivery of bioactive compounds in targeted area. SUMMARY ECFCs possess all biological features to be considered as a cell source of preference for tissue engineering and repair of blood supply. Investigation of regenerative potential of ECFCs in autologous settings in large animal models before clinical application is the next step to clearly outline the most efficient strategy for using ECFCs as treatment.
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Affiliation(s)
- Dimitar Tasev
- 1 Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center Amsterdam , Amsterdam, The Netherlands .,2 A-Skin Nederland BV , Amsterdam, The Netherlands
| | - Pieter Koolwijk
- 1 Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center Amsterdam , Amsterdam, The Netherlands
| | - Victor W M van Hinsbergh
- 1 Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center Amsterdam , Amsterdam, The Netherlands
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16
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Jamiolkowski RM, Kang SD, Rodriguez AK, Haseltine JM, Galinat LJ, Jantzen AE, Carlon TA, Darrabie MD, Arciniegas AJ, Mantilla JG, Haley NR, Noviani M, Allen JD, Stabler TV, Frederiksen JW, Alzate O, Keil LG, Liu S, Lin FH, Truskey GA, Achneck HE. Increased yield of endothelial cells from peripheral blood for cell therapies and tissue engineering. Regen Med 2016; 10:447-60. [PMID: 26022764 DOI: 10.2217/rme.15.2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
AIM Peripheral blood-derived endothelial cells (pBD-ECs) are an attractive tool for cell therapies and tissue engineering, but have been limited by their low isolation yield. We increase pBD-EC yield via administration of the chemokine receptor type 4 antagonist AMD3100, as well as via a diluted whole blood incubation (DWBI). MATERIALS & METHODS Porcine pBD-ECs were isolated using AMD3100 and DWBI and tested for EC markers, acetylated LDL uptake, growth kinetics, metabolic activity, flow-mediated nitric oxide production and seeded onto titanium tubes implanted into vessels of pigs. RESULTS DWBI increased the yield of porcine pBD-ECs 6.6-fold, and AMD3100 increased the yield 4.5-fold. AMD3100-mobilized ECs were phenotypically indistinguishable from nonmobilized ECs. In porcine implants, the cells expressed endothelial nitric oxide synthase, reduced thrombin-antithrombin complex systemically and prevented thrombosis. CONCLUSION Administration of AMD3100 and the DWBI method both increase pBD-EC yield.
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Affiliation(s)
| | - Sa Do Kang
- 1Department of Surgery, Duke University Medical Center, NC, USA
| | | | - Justin M Haseltine
- 1Department of Surgery, Duke University Medical Center, NC, USA.,2Department of Biomedical Engineering, Duke University, NC, USA
| | - Lauren J Galinat
- 1Department of Surgery, Duke University Medical Center, NC, USA.,2Department of Biomedical Engineering, Duke University, NC, USA
| | | | - Tim A Carlon
- 1Department of Surgery, Duke University Medical Center, NC, USA.,2Department of Biomedical Engineering, Duke University, NC, USA
| | | | | | - Jose G Mantilla
- 1Department of Surgery, Duke University Medical Center, NC, USA
| | | | - Maria Noviani
- 1Department of Surgery, Duke University Medical Center, NC, USA.,4Duke-National University of Singapore Graduate Medical School, Singapore
| | - Jason D Allen
- 5Department of Community and Family Medicine, Duke University Medical Center, NC, USA.,6Duke Molecular Physiology Institute, Duke University Medical Center, NC, USA
| | - Thomas V Stabler
- 6Duke Molecular Physiology Institute, Duke University Medical Center, NC, USA
| | | | - Oscar Alzate
- 8University of North Carolina, School of Medicine, NC, USA
| | - Lukas G Keil
- 8University of North Carolina, School of Medicine, NC, USA
| | - Siyao Liu
- 8University of North Carolina, School of Medicine, NC, USA
| | - Fu-Hsiung Lin
- 1Department of Surgery, Duke University Medical Center, NC, USA
| | | | - Hardean E Achneck
- 1Department of Surgery, Duke University Medical Center, NC, USA.,9Department of Pathology, Duke University Medical Center, NC, USA
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17
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Jantzen AE, Noviani M, Mills JS, Baker KM, Lin FH, Truskey GA, Achneck HE. Point-of-care seeding of nitinol stents with blood-derived endothelial cells. J Biomed Mater Res B Appl Biomater 2015; 104:1658-1665. [PMID: 26340233 DOI: 10.1002/jbm.b.33510] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 07/09/2015] [Accepted: 08/14/2015] [Indexed: 01/21/2023]
Abstract
Nitinol-based vascular devices, for example, peripheral and intracranial stents, are limited by thrombosis and restenosis. To ameliorate these complications, we developed a technology to promote vessel healing by rapidly seeding (QuickSeeding) autologous blood-derived endothelial cells (ECs) onto modified self-expanding nitinol stent delivery systems immediately before implantation. Several thousand micropores were laser-drilled into a delivery system sheath surrounding a commercial nitinol stent to allow for exit of an infused cell suspension. As suspension medium flowed outward through the micropores, ECs flowed through the delivery system attaching to the stent surface. The QuickSeeded ECs adhered to and spread on the stent surface following 24-h in vitro culture under static or flow conditions. Further, QuickSeeded ECs on stents that were deployed into porcine carotid arteries spread to endothelialize stent struts within 48 h (n = 4). The QuickSeeded stent struts produced significantly more nitric oxide in ex vivo flow circuits after 24 h, as compared to static conditions (n = 5). In conclusion, ECs QuickSeeded onto commercial nitinol stents within minutes of implantation spread to form a functional layer in vitro and in vivo, providing proof of concept that the novel QuickSeeding method with modified delivery systems can be used to seed functional autologous endothelium at the point of care. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 104B: 1658-1665, 2016.
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Affiliation(s)
- Alexandra E Jantzen
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
| | - Maria Noviani
- Department of Surgery, Duke University Medical Center, Durham, North Carolina.,Duke-National University of Singapore Graduate Medical School Singapore Cardiovascular & Metabolic Disorders Program, Singapore
| | - James S Mills
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, North Carolina
| | | | - Fu-Hsiung Lin
- Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - George A Truskey
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
| | - Hardean E Achneck
- Department of Surgery, Duke University Medical Center, Durham, North Carolina. .,Duke-National University of Singapore Graduate Medical School Singapore Cardiovascular & Metabolic Disorders Program, Singapore. .,Department of Pathology, Duke University Medical Center, Durham, North Carolina. .,Hemostemix Inc., Ness Ziona, Israel, Calgary, Alberta, Canada.
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18
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Uthamaraj S, Tefft BJ, Klabusay M, Hlinomaz O, Sandhu GS, Dragomir-Daescu D. Design and validation of a novel ferromagnetic bare metal stent capable of capturing and retaining endothelial cells. Ann Biomed Eng 2014; 42:2416-24. [PMID: 25138164 DOI: 10.1007/s10439-014-1088-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 08/04/2014] [Indexed: 11/25/2022]
Abstract
Rapid healing of vascular stents is important for avoiding complications associated with stent thrombosis, restenosis, and bleeding related to antiplatelet drugs. Magnetic forces can be used to capture iron-labeled endothelial cells immediately following stent implantation, thereby promoting healing. This strategy requires the development of a magnetic stent that is biocompatible and functional. We designed a stent from the weakly ferromagnetic 2205 stainless steel using finite element analysis. The final design exhibited a principal strain below the fracture limit of 30% during crimping and expansion. Ten stents were fabricated and validated experimentally for fracture resistance. Another 10 stents magnetized with a neodymium magnet showed a magnetic field in the range of 100-750 mG. The retained magnetism was sufficiently strong to capture magnetically-labeled endothelial cells on the stent surfaces during in vitro studies. Magnetically-labeled endothelial cell capture was also verified in vivo after 7 days following coronary implantation in 4 pigs using histological analysis. Images of the stented blood vessels showed uniform endothelium formation on the stent surfaces. In conclusion, we have designed a ferromagnetic bare metal stent from 2205 stainless steel that is functional, biocompatible, and able to capture and retain magnetically-labeled endothelial cells in order to promote rapid stent healing.
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Affiliation(s)
- Susheil Uthamaraj
- Division of Engineering, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
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19
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Fernandez CE, Achneck HE, Reichert WM, Truskey GA. Biological and engineering design considerations for vascular tissue engineered blood vessels (TEBVs). Curr Opin Chem Eng 2014; 3:83-90. [PMID: 24511460 DOI: 10.1016/j.coche.2013.12.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Considerable advances have occurred in the development of tissue-engineered blood vessels (TEBVs) to repair or replace injured blood vessels, or as in vitro systems for drug toxicity testing. Here we summarize approaches to produce TEBVs and review current efforts to (1) identify suitable cell sources for the endothelium and vascular smooth muscle cells, (2) design the scaffold to mimic the arterial mechanical properties and (3) regulate the functional state of the cells of the vessel wall. Initial clinical studies have established the feasibility of this approach and challenges that make TEBVs a viable alternative for vessel replacement are identified.
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Affiliation(s)
| | - Hardean E Achneck
- Departments of Surgery and Pathology, Duke University Medical Center
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20
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Zhang K, Liu T, Li JA, Chen JY, Wang J, Huang N. Surface modification of implanted cardiovascular metal stents: From antithrombosis and antirestenosis to endothelialization. J Biomed Mater Res A 2013; 102:588-609. [PMID: 23520056 DOI: 10.1002/jbm.a.34714] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2012] [Revised: 03/08/2013] [Accepted: 03/11/2013] [Indexed: 12/31/2022]
Affiliation(s)
- Kun Zhang
- Key Laboratory of Advanced Technology for Materials of Chinese Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, People's Republic of China
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21
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Jantzen AE, Achneck HE, Truskey GA. Surface projections of titanium substrates increase antithrombotic endothelial function in response to shear stress. J Biomed Mater Res A 2013; 101:3181-91. [PMID: 23554161 DOI: 10.1002/jbm.a.34613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Revised: 12/21/2012] [Accepted: 01/22/2013] [Indexed: 11/06/2022]
Abstract
Despite the therapeutic benefits of both mechanical circulatory assist devices and nitinol stents with titanium (Ti) outer surfaces, problems remain with thrombosis at the blood-contacting surface. Covering these surfaces with a layer of endothelium would mimic the native lining of the cardiovascular system, potentially decreasing thrombotic complications. Since surface topography is known to affect the phenotype of a seeded cell layer and since stents and ventricular assist devices exhibit surface protrusions, we tested the hypothesis that endothelial cells (ECs) have altered function on Ti surfaces with protrusions of 1.25, 3, and 5 μm height, compared with smooth Ti surfaces. ECs and nuclei were more aligned and ECs were more elongated on all patterned surfaces. Cell area was reduced on the 3 and 5 μm features. Expression of eNOS and COX2 was not altered by patterned surfaces, but expression of KLF-2 was higher on 1.25 and 5 μm features. Nitric oxide production following exposure to flow was higher on the 5 μm features. These results show that some antithrombogenic functions of ECs are significantly enhanced for ECs cultured on surface protrusions, and no functions are diminished, informing the future design of implant surfaces for endothelialization.
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Affiliation(s)
- Alexandra E Jantzen
- Department of Biomedical Engineering, Duke University, Durham, North Carolina, 27708
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22
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Hoshi RA, Van Lith R, Jen MC, Allen JB, Lapidos KA, Ameer G. The blood and vascular cell compatibility of heparin-modified ePTFE vascular grafts. Biomaterials 2012; 34:30-41. [PMID: 23069711 DOI: 10.1016/j.biomaterials.2012.09.046] [Citation(s) in RCA: 194] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Accepted: 09/21/2012] [Indexed: 12/21/2022]
Abstract
Prosthetic vascular grafts do not mimic the antithrombogenic properties of native blood vessels and therefore have higher rates of complications that involve thrombosis and restenosis. We developed an approach for grafting bioactive heparin, a potent anticoagulant glycosaminoglycan, to the lumen of ePTFE vascular grafts to improve their interactions with blood and vascular cells. Heparin was bound to aminated poly(1,8-octanediol-co-citrate) (POC) via its carboxyl functional groups onto POC-modified ePTFE grafts. The bioactivity and stability of the POC-immobilized heparin (POC-Heparin) were characterized via platelet adhesion and clotting assays. The effects of POC-Heparin on the adhesion, viability and phenotype of primary endothelial cells (EC), blood outgrowth endothelial cells (BOECs) obtained from endothelial progenitor cells (EPCs) isolated from human peripheral blood, and smooth muscle cells were also investigated. POC-Heparin grafts maintained bioactivity under physiologically relevant conditions in vitro for at least one month. Specifically, POC-Heparin-coated ePTFE grafts significantly reduced platelet adhesion and inhibited whole blood clotting kinetics. POC-Heparin supported EC and BOEC adhesion, viability, proliferation, NO production, and expression of endothelial cell-specific markers von Willebrand factor (vWF) and vascular endothelial-cadherin (VE-cadherin). Smooth muscle cells cultured on POC-Heparin showed increased expression of α-actin and decreased cell proliferation. This approach can be easily adapted to modify other blood contacting devices such as stents where antithrombogenicity and improved endothelialization are desirable properties.
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Affiliation(s)
- Ryan A Hoshi
- Biomedical Engineering Department, Northwestern University, Evanston, IL 60208, USA
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