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Development and in vivo validation of tissue-engineered, small-diameter vascular grafts from decellularized aortae of fetal pigs and canine vascular endothelial cells. J Cardiothorac Surg 2017; 12:101. [PMID: 29178903 PMCID: PMC5702065 DOI: 10.1186/s13019-017-0661-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 11/06/2017] [Indexed: 01/08/2023] Open
Abstract
Background Tissue engineering has emerged as a promising alternative for small-diameter vascular grafts. The aim of this study was to determine the feasibility of using decellularized aortae of fetal pigs (DAFPs) to construct tissue-engineered, small-diameter vascular grafts and to test the performance and application of DAFPs as vascular tissue-engineered scaffolds in the canine arterial system. Methods DAFPs were prepared by continuous enzymatic digestion. Canine vascular endothelial cells (ECs) were seeded onto DAFPs in vitro and then the vascular grafts were cultured in a custom-designed vascular bioreactor system for 7 days of dynamic culture following 3 days of static culture. The grafts were then transplanted into the common carotid artery of the same seven dogs from which ECs had been derived (two grafts were prepared for each dog with one as a backup; therefore, a total of 14 tissue-engineered blood vessels were prepared). At 1, 3, and 6 months post-transplantation, ultrasonography and contrast-enhanced computed tomography (CT) were used to check the patency of the grafts. Additionally, vascular grafts were sampled for histological and electron microscopic examination. Results Tissue-engineered, small-diameter vascular grafts can be successfully constructed using DAFPs and canine vascular ECs. Ultrasonographic and CT test results confirmed that implanted vascular grafts displayed good patency with no obvious thrombi. Six months after implantation, the grafts had been remodeled and exhibited a similar structure to normal arteries. Immunohistochemical staining showed that cells had evenly infiltrated the tunica media and were identified as muscular fibroblasts. Scanning electron microscopy showed that the graft possessed a complete cell layer, and the internal cells of the graft were confirmed to be ECs by transmission electron microscopy. Conclusions Tissue-engineered, small-diameter vascular grafts constructed using DAFPs and canine vascular ECs can be successfully transplanted to replace the canine common carotid artery. This investigation potentially paves the way for solving a problem of considerable clinical need, i.e., the requirement for small-diameter vascular grafts.
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Mahmoodi M, Zamanifard M, Safarzadeh M, Bonakdar S. In vitro evaluation of collagen immobilization on polytetrafluoroethylene through NH3 plasma treatment to enhance endothelial cell adhesion and growth. Biomed Mater Eng 2017; 28:489-501. [DOI: 10.3233/bme-171692] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Mahboobeh Mahmoodi
- Department of Biomedical Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran. E-mail:
| | - Mohammad Zamanifard
- Department of Biomedical Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran. E-mail:
| | - Mina Safarzadeh
- Department of Biomedical Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran. E-mail:
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A Novel Three-Dimensional Platform to Investigate Neoangiogenesis, Transendothelial Migration, and Metastasis of MDAMB-231 Breast Cancer Cells. Plast Reconstr Surg 2017; 138:472e-482e. [PMID: 27556622 DOI: 10.1097/prs.0000000000002470] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND A crucial step in the progression of cancer involves the transendothelial migration of tumor cells into the bloodstream and invasion at distant sites. Most in vitro models of malignant cell behavior do not account for the presence of and interaction with vascular cells. Three-dimensional platforms to further explore the factors responsible for metastatic cellular behavior are under intensive investigation. METHODS Hydrogels with encapsulated MDAMB-231 breast cancer cells were fabricated with a central microchannel. The microchannel was lined with a co-culture of human umbilical vein endothelial cells and human aortic smooth muscle cells. For comparison, co-culture-seeded microchannels without breast cancer cells (MDAMB-negative) were fabricated. RESULTS After 7 and 14 days, the endoluminal lining of encapsulated MDAMB-231 co-culture-seeded microchannels demonstrated aberrant endothelial cell and smooth muscle cell organization and breast cancer cell transendothelial migration. MDAMB-231 cells performed matrix remodeling, forming tumor aggregates within the bulk, migrating preferentially toward the hydrogel "neovessel." In contrast, MDAMB-negative constructs demonstrated maintenance of an intact endoluminal lining composed of endothelial cells and smooth muscle cells that organized into discrete layers. Furthermore, the thicknesses of the endoluminal lining of MDAMB-negative constructs were significantly greater than encapsulated MDAMB-231 co-culture-seeded constructs after 7 and 14 days (p = 0.012 and p < 0.001, respectively). CONCLUSION The authors have created a powerful tool that may have tremendous impact on furthering our understanding of cancer recurrence and metastasis, shedding light on these poorly understood phenomena.
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Sekuła M, Domalik-Pyzik P, Morawska-Chochół A, Bobis-Wozowicz S, Karnas E, Noga S, Boruczkowski D, Adamiak M, Madeja Z, Chłopek J, Zuba-Surma EK. Polylactide- and polycaprolactone-based substrates enhance angiogenic potential of human umbilical cord-derived mesenchymal stem cells in vitro - implications for cardiovascular repair. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:521-533. [PMID: 28532062 DOI: 10.1016/j.msec.2017.03.281] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/04/2017] [Accepted: 03/29/2017] [Indexed: 01/06/2023]
Abstract
Recent approaches in tissue regeneration focus on combining innovative achievements of stem cell biology and biomaterial sciences to develop novel therapeutic strategies for patients. Growing recent evidence indicates that mesenchymal stem cells harvested from human umbilical cord Wharton's jelly (hUC-MSCs) are a new valuable source of cells for autologous as well as allogeneic therapies in humans. hUC-MSCs are multipotent, highly proliferating cells with prominent immunoregulatory activity. In this study, we evaluated the impact of widely used FDA approved poly(α-esters) including polylactide (PLA) and polycaprolactone (PCL) on selected biological properties of hUC-MSCs in vitro. We found that both polymers can be used as non-toxic substrates for ex vivo propagation of hUC-MSCs as shown by no major impact on cell proliferation or viability. Moreover, PCL significantly enhanced the migratory capacity of hUC-MSCs. Importantly, genetic analysis indicated that both polymers promoted the angiogenic differentiation potential of hUC-MSCs with no additional chemical stimulation. These results indicate that PLA and PCL enhance selected biological properties of hUC-MSCs essential for their regenerative capacity including migratory and proangiogenic potential, which are required for effective vascular repair in vivo. Thus, PLA and PCL-based scaffolds combined with hUC-MSCs may be potentially employed as future novel grafts in tissue regeneration such as blood vessel reconstruction.
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Affiliation(s)
- Małgorzata Sekuła
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 7 Gronostajowa St., 30-387 Krakow, Poland; Malopolska Centre of Biotechnology, Jagiellonian University, 7A Gronostajowa St., 30-387 Krakow, Poland
| | - Patrycja Domalik-Pyzik
- Department of Biomaterials, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Ave., 30-059 Krakow, Poland
| | - Anna Morawska-Chochół
- Department of Biomaterials, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Ave., 30-059 Krakow, Poland
| | - Sylwia Bobis-Wozowicz
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 7 Gronostajowa St., 30-387 Krakow, Poland
| | - Elżbieta Karnas
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 7 Gronostajowa St., 30-387 Krakow, Poland; Malopolska Centre of Biotechnology, Jagiellonian University, 7A Gronostajowa St., 30-387 Krakow, Poland
| | - Sylwia Noga
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 7 Gronostajowa St., 30-387 Krakow, Poland; Malopolska Centre of Biotechnology, Jagiellonian University, 7A Gronostajowa St., 30-387 Krakow, Poland
| | | | - Marta Adamiak
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 7 Gronostajowa St., 30-387 Krakow, Poland
| | - Zbigniew Madeja
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 7 Gronostajowa St., 30-387 Krakow, Poland
| | - Jan Chłopek
- Department of Biomaterials, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Ave., 30-059 Krakow, Poland.
| | - Ewa K Zuba-Surma
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 7 Gronostajowa St., 30-387 Krakow, Poland.
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Datta P, Ayan B, Ozbolat IT. Bioprinting for vascular and vascularized tissue biofabrication. Acta Biomater 2017; 51:1-20. [PMID: 28087487 DOI: 10.1016/j.actbio.2017.01.035] [Citation(s) in RCA: 237] [Impact Index Per Article: 33.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 12/14/2016] [Accepted: 01/10/2017] [Indexed: 12/14/2022]
Abstract
Bioprinting is a promising technology to fabricate design-specific tissue constructs due to its ability to create complex, heterocellular structures with anatomical precision. Bioprinting enables the deposition of various biologics including growth factors, cells, genes, neo-tissues and extra-cellular matrix-like hydrogels. Benefits of bioprinting have started to make a mark in the fields of tissue engineering, regenerative medicine and pharmaceutics. Specifically, in the field of tissue engineering, the creation of vascularized tissue constructs has remained a principal challenge till date. However, given the myriad advantages over other biofabrication methods, it becomes organic to expect that bioprinting can provide a viable solution for the vascularization problem, and facilitate the clinical translation of tissue engineered constructs. This article provides a comprehensive account of bioprinting of vascular and vascularized tissue constructs. The review is structured as introducing the scope of bioprinting in tissue engineering applications, key vascular anatomical features and then a thorough coverage of 3D bioprinting using extrusion-, droplet- and laser-based bioprinting for fabrication of vascular tissue constructs. The review then provides the reader with the use of bioprinting for obtaining thick vascularized tissues using sacrificial bioink materials. Current challenges are discussed, a comparative evaluation of different bioprinting modalities is presented and future prospects are provided to the reader. STATEMENT OF SIGNIFICANCE Biofabrication of living tissues and organs at the clinically-relevant volumes vitally depends on the integration of vascular network. Despite the great progress in traditional biofabrication approaches, building perfusable hierarchical vascular network is a major challenge. Bioprinting is an emerging technology to fabricate design-specific tissue constructs due to its ability to create complex, heterocellular structures with anatomical precision, which holds a great promise in fabrication of vascular or vascularized tissues for transplantation use. Although a great progress has recently been made on building perfusable tissues and branched vascular network, a comprehensive review on the state-of-the-art in vascular and vascularized tissue bioprinting has not reported so far. This contribution is thus significant because it discusses the use of three major bioprinting modalities in vascular tissue biofabrication for the first time in the literature and compares their strengths and limitations in details. Moreover, the use of scaffold-based and scaffold-free bioprinting is expounded within the domain of vascular tissue fabrication.
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Zakharova IS, Zhiven' MK, Saaya SB, Shevchenko AI, Smirnova AM, Strunov A, Karpenko AA, Pokushalov EA, Ivanova LN, Makarevich PI, Parfyonova YV, Aboian E, Zakian SM. Endothelial and smooth muscle cells derived from human cardiac explants demonstrate angiogenic potential and suitable for design of cell-containing vascular grafts. J Transl Med 2017; 15:54. [PMID: 28257636 PMCID: PMC5336693 DOI: 10.1186/s12967-017-1156-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 02/22/2017] [Indexed: 01/25/2023] Open
Abstract
Background Endothelial and smooth muscle cells are considered promising resources for regenerative medicine and cell replacement therapy. It has been shown that both types of cells are heterogeneous depending on the type of vessels and organs in which they are located. Therefore, isolation of endothelial and smooth muscle cells from tissues relevant to the area of research is necessary for the adequate study of specific pathologies. However, sources of specialized human endothelial and smooth muscle cells are limited, and the search for new sources is still relevant. The main goal of our study is to demonstrate that functional endothelial and smooth muscle cells can be obtained from an available source—post-surgically discarded cardiac tissue from the right atrial appendage and right ventricular myocardium. Methods Heterogeneous primary cell cultures were enzymatically isolated from cardiac explants and then grown in specific endothelial and smooth muscle growth media on collagen IV-coated surfaces. The population of endothelial cells was further enriched by immunomagnetic sorting for CD31, and the culture thus obtained was characterized by immunocytochemistry, ultrastructural analysis and in vitro functional tests. The angiogenic potency of the cells was examined by injecting them, along with Matrigel, into immunodeficient mice. Cells were also seeded on characterized polycaprolactone/chitosan membranes with subsequent analysis of cell proliferation and function. Results Endothelial cells isolated from cardiac explants expressed CD31, VE-cadherin and VEGFR2 and showed typical properties, namely, cytoplasmic Weibel-Palade bodies, metabolism of acetylated low-density lipoproteins, formation of capillary-like structures in Matrigel, and production of extracellular matrix and angiogenic cytokines. Isolated smooth muscle cells expressed extracellular matrix components as well as α-actin and myosin heavy chain. Vascular cells derived from cardiac explants demonstrated the ability to stimulate angiogenesis in vivo. Endothelial cells proliferated most effectively on membranes made of polycaprolactone and chitosan blended in a 25:75 ratio, neutralized by a mixture of alkaline and ethanol. Endothelial and smooth muscle cells retained their functional properties when seeded on the blended membranes. Conclusions We established endothelial and smooth muscle cell cultures from human right atrial appendage and right ventricle post-operative explants. The isolated cells revealed angiogenic potential and may be a promising source of patient-specific cells for regenerative medicine. Electronic supplementary material The online version of this article (doi:10.1186/s12967-017-1156-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- I S Zakharova
- The Federal Research Center Institute of Cytology And Genetics, The Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation. .,Institute of Chemical Biology and Fundamental Medicine, The Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation. .,Siberian Federal Biomedical Research Center, Ministry of Health Care of Russian Federation, Novosibirsk, Russian Federation.
| | - M K Zhiven'
- The Federal Research Center Institute of Cytology And Genetics, The Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation.,Institute of Chemical Biology and Fundamental Medicine, The Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation.,Siberian Federal Biomedical Research Center, Ministry of Health Care of Russian Federation, Novosibirsk, Russian Federation
| | - Sh B Saaya
- Siberian Federal Biomedical Research Center, Ministry of Health Care of Russian Federation, Novosibirsk, Russian Federation
| | - A I Shevchenko
- The Federal Research Center Institute of Cytology And Genetics, The Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation.,Institute of Chemical Biology and Fundamental Medicine, The Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation.,Siberian Federal Biomedical Research Center, Ministry of Health Care of Russian Federation, Novosibirsk, Russian Federation.,Novosibirsk State University, Novosibirsk, Russian Federation
| | - A M Smirnova
- The Federal Research Center Institute of Cytology And Genetics, The Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation.,Siberian Federal Biomedical Research Center, Ministry of Health Care of Russian Federation, Novosibirsk, Russian Federation.,Novosibirsk State University, Novosibirsk, Russian Federation
| | - A Strunov
- The Federal Research Center Institute of Cytology And Genetics, The Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation
| | - A A Karpenko
- Siberian Federal Biomedical Research Center, Ministry of Health Care of Russian Federation, Novosibirsk, Russian Federation
| | - E A Pokushalov
- Siberian Federal Biomedical Research Center, Ministry of Health Care of Russian Federation, Novosibirsk, Russian Federation
| | - L N Ivanova
- The Federal Research Center Institute of Cytology And Genetics, The Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation.,Novosibirsk State University, Novosibirsk, Russian Federation
| | - P I Makarevich
- Laboratory of Angiogenesis, Russian Cardiology Research and Production Complex, Moscow, Russian Federation.,Laboratory of gene and cell therapy, Institute of regenerative medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Y V Parfyonova
- Laboratory of Angiogenesis, Russian Cardiology Research and Production Complex, Moscow, Russian Federation.,Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - E Aboian
- Division of Vascular Surgery, Palo Alto Medical Foundation, Burlingame, USA
| | - S M Zakian
- The Federal Research Center Institute of Cytology And Genetics, The Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation.,Institute of Chemical Biology and Fundamental Medicine, The Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation.,Siberian Federal Biomedical Research Center, Ministry of Health Care of Russian Federation, Novosibirsk, Russian Federation.,Novosibirsk State University, Novosibirsk, Russian Federation
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Geelhoed WJ, Moroni L, Rotmans JI. Utilizing the Foreign Body Response to Grow Tissue Engineered Blood Vessels in Vivo. J Cardiovasc Transl Res 2017; 10:167-179. [PMID: 28205013 PMCID: PMC5437130 DOI: 10.1007/s12265-017-9731-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 01/23/2017] [Indexed: 12/21/2022]
Abstract
It is well known that the number of patients requiring a vascular grafts for use as vessel replacement in cardiovascular diseases, or as vascular access site for hemodialysis is ever increasing. The development of tissue engineered blood vessels (TEBV's) is a promising method to meet this increasing demand vascular grafts, without having to rely on poorly performing synthetic options such as polytetrafluoroethylene (PTFE) or Dacron. The generation of in vivo TEBV's involves utilizing the host reaction to an implanted biomaterial for the generation of completely autologous tissues. Essentially this approach to the development of TEBV's makes use of the foreign body response to biomaterials for the construction of the entire vascular replacement tissue within the patient's own body. In this review we will discuss the method of developing in vivo TEBV's, and debate the approaches of several research groups that have implemented this method.
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Affiliation(s)
- Wouter J Geelhoed
- Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands.,Eindhoven Laboratory of Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Lorenzo Moroni
- MERLN Institute for Technology Inspired Regenerative Medicine, Complex Tissue Regeneration, Maastricht University, Maastricht, The Netherlands
| | - Joris I Rotmans
- Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands. .,Eindhoven Laboratory of Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands.
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58
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Cui H, Nowicki M, Fisher JP, Zhang LG. 3D Bioprinting for Organ Regeneration. Adv Healthc Mater 2017; 6:10.1002/adhm.201601118. [PMID: 27995751 PMCID: PMC5313259 DOI: 10.1002/adhm.201601118] [Citation(s) in RCA: 277] [Impact Index Per Article: 39.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 10/26/2016] [Indexed: 12/19/2022]
Abstract
Regenerative medicine holds the promise of engineering functional tissues or organs to heal or replace abnormal and necrotic tissues/organs, offering hope for filling the gap between organ shortage and transplantation needs. Three-dimensional (3D) bioprinting is evolving into an unparalleled biomanufacturing technology due to its high-integration potential for patient-specific designs, precise and rapid manufacturing capabilities with high resolution, and unprecedented versatility. It enables precise control over multiple compositions, spatial distributions, and architectural accuracy/complexity, therefore achieving effective recapitulation of microstructure, architecture, mechanical properties, and biological functions of target tissues and organs. Here we provide an overview of recent advances in 3D bioprinting technology, as well as design concepts of bioinks suitable for the bioprinting process. We focus on the applications of this technology for engineering living organs, focusing more specifically on vasculature, neural networks, the heart and liver. We conclude with current challenges and the technical perspective for further development of 3D organ bioprinting.
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Affiliation(s)
- Haitao Cui
- Department of Mechanical and Aerospace Engineering, The George Washington University, 3590 Science and Engineering Hall, 800 22nd Street NW, Washington, DC 20052, USA
| | - Margaret Nowicki
- Department of Biomedical Engineering, The George Washington University, 3590 Science and Engineering Hall, 800 22nd Street NW, Washington, DC 20052, USA
| | - John P. Fisher
- Department of Bioengineering University of Maryland 3238 Jeong H. Kim Engineering Building College Park, MD 20742, USA
| | - Lijie Grace Zhang
- Department of Medicine, The George Washington University, 3590 Science and Engineering Hall, 800 22nd Street NW, Washington, DC 20052, USA
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59
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Xu ZC, Zhang Q, Li H. Engineering of the human vessel wall with hair follicle stem cells in vitro. Mol Med Rep 2016; 15:417-422. [PMID: 27959397 DOI: 10.3892/mmr.2016.6013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 10/11/2016] [Indexed: 11/05/2022] Open
Abstract
Hair follicle stem cells (HFSCs) are increasingly used as a stem cell paradigm in vascular tissue engineering due to the fact that they are a rich source of easily accessible multipotent adult stem cells. Promising results have been demonstrated with small diameter (less than 6 mm) tissue engineered blood vessels under low blood pressure, however engineering large vessels (>6 mm in diameter) remains a challenge due to the fact it demands a higher number of seed cells and higher quality biomechanical properties. The aim of the current study was to engineer a large vessel (6 mm in diameter) with differentiated smooth muscle cells (SMCs) induced from human (h)HFSCs using transforming growth factor‑β1 and platelet‑derived growth factor BB in combination with low‑serum culture medium. The cells were seeded onto polyglycolic acid and then wrapped around a silicone tube and further cultured in vitro. A round vessel wall was formed subsequent to 8 weeks of culture. Histological examination indicated that layers of smooth muscle‑like cells and collagenous fibres were oriented in the induced group. In contrast, disorganised cells and collagenous fibres were apparent in the undifferentiated group. The approach developed in the current study demonstrated potential for constructing large muscular vessels with differentiated SMCs induced from hHFSCs.
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Affiliation(s)
- Zhi-Cheng Xu
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, P.R. China
| | - Qun Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, P.R. China
| | - Hong Li
- Department of Life Information and Instrument Engineering, Hangzhou Electronic Science and Technology University, Hangzhou, Zhejiang 310058, P.R. China
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Badhe RV, Bijukumar D, Chejara DR, Mabrouk M, Choonara YE, Kumar P, du Toit LC, Kondiah PPD, Pillay V. A composite chitosan-gelatin bi-layered, biomimetic macroporous scaffold for blood vessel tissue engineering. Carbohydr Polym 2016; 157:1215-1225. [PMID: 27987825 DOI: 10.1016/j.carbpol.2016.09.095] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 09/19/2016] [Accepted: 09/20/2016] [Indexed: 10/20/2022]
Abstract
A composite chitosan-gelatin macroporous hydrogel-based scaffold with bi-layered tubular architecture was engineered by solvent casting-co-particulate leaching. The scaffold constituted an inner macroporous layer concealed by a non-porous outer layer mimicking the 3D matrix of blood vessels with cellular adhesion and proliferation. The scaffold was evaluated for its morphological, physicochemical, physicomechanical and biodurability properties employing SEM, FTIR, DSC, XRD, porositometry, rheology and texture analysis. The fluid uptake and biodegradation in the presence of lysozymes was also investigated. Cellular attachment and proliferation was analysed using human dermal fibroblasts (HDF-a) seeded onto the scaffold and evaluated by MTT assay, SEM, and confocal microscopy. Results demonstrated that the scaffold had a desirable tensile strength=95.81±11kPa, elongation at break 112.5±13%, porosity 82% and pores between 100 and 230μm, 50% in vitro biodegradation at day 16 and proliferated fibroblasts over 20 days. These results demonstrate that scaffold may be an excellent tubular archetype for blood vessel tissue engineering.
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Affiliation(s)
- Ravindra V Badhe
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Divya Bijukumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Dharmesh R Chejara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Mostafa Mabrouk
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa; Refractories, Ceramics and Building Materials Department, National Research Centre, 33 El-Bohouth St. (former El-Tahrir St.), Dokki, Giza, P.O. 12622, Egypt
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Lisa C du Toit
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Pierre P D Kondiah
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa.
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Merfeld-Clauss S, Lease BR, Lu H, March KL, Traktuev DO. Adipose stromal cells differentiation toward smooth muscle cell phenotype diminishes their vasculogenic activity due to induction of activin A secretion. J Tissue Eng Regen Med 2016; 11:3145-3156. [DOI: 10.1002/term.2223] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 03/17/2016] [Accepted: 04/19/2016] [Indexed: 01/14/2023]
Affiliation(s)
- Stephanie Merfeld-Clauss
- Department of Medicine; Indiana Center for Vascular Biology and Medicine
- Krannert Institute of Cardiology; Indiana University School of Medicine; Indianapolis IN 46202 USA
- VA Center for Regenerative Medicine; R.L. Roudebush VA Medical Center; Indianapolis IN 46202 USA
| | - Benjamin R. Lease
- VA Center for Regenerative Medicine; R.L. Roudebush VA Medical Center; Indianapolis IN 46202 USA
| | - Hongyan Lu
- Department of Medicine; Indiana Center for Vascular Biology and Medicine
- Krannert Institute of Cardiology; Indiana University School of Medicine; Indianapolis IN 46202 USA
- VA Center for Regenerative Medicine; R.L. Roudebush VA Medical Center; Indianapolis IN 46202 USA
| | - Keith L. March
- Department of Medicine; Indiana Center for Vascular Biology and Medicine
- Krannert Institute of Cardiology; Indiana University School of Medicine; Indianapolis IN 46202 USA
- VA Center for Regenerative Medicine; R.L. Roudebush VA Medical Center; Indianapolis IN 46202 USA
- Department of Cellular and Integrative Physiology; Indiana University School of Medicine; Indianapolis IN 46202 USA
| | - Dmitry O. Traktuev
- Department of Medicine; Indiana Center for Vascular Biology and Medicine
- Krannert Institute of Cardiology; Indiana University School of Medicine; Indianapolis IN 46202 USA
- VA Center for Regenerative Medicine; R.L. Roudebush VA Medical Center; Indianapolis IN 46202 USA
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62
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Schaupper M, Jeltsch M, Rohringer S, Redl H, Holnthoner W. Lymphatic Vessels in Regenerative Medicine and Tissue Engineering. TISSUE ENGINEERING PART B-REVIEWS 2016; 22:395-407. [DOI: 10.1089/ten.teb.2016.0034] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Mira Schaupper
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Michael Jeltsch
- Wihuri Research Institute and Translational Cancer Biology Program, University of Helsinki, Helsinki, Finland
| | | | - Heinz Redl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Wolfgang Holnthoner
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
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63
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Ozler SB, Bakirci E, Kucukgul C, Koc B. Three-dimensional direct cell bioprinting for tissue engineering. J Biomed Mater Res B Appl Biomater 2016; 105:2530-2544. [PMID: 27689939 DOI: 10.1002/jbm.b.33768] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 06/03/2016] [Accepted: 07/23/2016] [Indexed: 02/02/2023]
Abstract
Bioprinting is a relatively new technology where living cells with or without biomaterials are printed layer-by-layer in order to create three-dimensional (3D) living structures. In this article, novel bioprinting methodologies are developed to fabricate 3D biological structures directly from computer models using live multicellular aggregates. Multicellular aggregates made out of at least two cell types from fibroblast, endothelial and smooth muscle cells are prepared and optimized. A novel bioprinting approach is proposed in order to continuously extrude cylindrical multicellular aggregates through the bioprinter's glass microcapillaries. The multicellular aggregates are first aspirated into a capillary and then compressed to form a continuous cylindrical multicellular bioink. To overcome surface tension-driven droplet formation, the required compression ratio is calculated. Based on the developed bioprinting strategies, multicellular aggregates and their support structures are bioprinted to form 3D tissue constructs with predefined shapes. The effect of the bioprinting process was examined for fusion, cell viability at different compression ratios, and f-actin cytoskeletal organization. The results show that the bioprinted 3D constructs fuse rapidly and have high cell viability after printing. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 2530-2544, 2017.
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Affiliation(s)
- Saime Burce Ozler
- Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul, Turkey.,3D Bioprinting Lab, Sabanci University Nanotechnology Research and Application Center, Istanbul, Turkey
| | - Ezgi Bakirci
- Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul, Turkey.,3D Bioprinting Lab, Sabanci University Nanotechnology Research and Application Center, Istanbul, Turkey
| | - Can Kucukgul
- Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul, Turkey.,3D Bioprinting Lab, Sabanci University Nanotechnology Research and Application Center, Istanbul, Turkey
| | - Bahattin Koc
- Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul, Turkey.,3D Bioprinting Lab, Sabanci University Nanotechnology Research and Application Center, Istanbul, Turkey
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64
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Tamimi E, Ardila DC, Haskett DG, Doetschman T, Slepian MJ, Kellar RS, Vande Geest JP. Biomechanical Comparison of Glutaraldehyde-Crosslinked Gelatin Fibrinogen Electrospun Scaffolds to Porcine Coronary Arteries. J Biomech Eng 2016; 138:2466198. [PMID: 26501189 DOI: 10.1115/1.4031847] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Indexed: 12/17/2022]
Abstract
Cardiovascular disease (CVD) is the leading cause of death for Americans. As coronary artery bypass graft surgery (CABG) remains a mainstay of therapy for CVD and native vein grafts are limited by issues of supply and lifespan, an effective readily available tissue-engineered vascular graft (TEVG) for use in CABG would provide drastic improvements in patient care. Biomechanical mismatch between vascular grafts and native vasculature has been shown to be the major cause of graft failure, and therefore, there is need for compliance-matched biocompatible TEVGs for clinical implantation. The current study investigates the biaxial mechanical characterization of acellular electrospun glutaraldehyde (GLUT) vapor-crosslinked gelatin/fibrinogen cylindrical constructs, using a custom-made microbiaxial optomechanical device (MOD). Constructs crosslinked for 2, 8, and 24 hrs are compared to mechanically characterized porcine left anterior descending coronary (LADC) artery. The mechanical response data were used for constitutive modeling using a modified Fung strain energy equation. The results showed that constructs crosslinked for 2 and 8 hrs exhibited circumferential and axial tangential moduli (ATM) similar to that of the LADC. Furthermore, the 8-hrs experimental group was the only one to compliance-match the LADC, with compliance values of 0.0006±0.00018 mm Hg-1 and 0.00071±0.00027 mm Hg-1, respectively. The results of this study show the feasibility of meeting mechanical specifications expected of native arteries through manipulating GLUT vapor crosslinking time. The comprehensive mechanical characterization of cylindrical biopolymer constructs in this study is an important first step to successfully develop a biopolymer compliance-matched TEVG.
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65
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Lee S, Nemeño JGE, Lee JI. Repositioning Bevacizumab: A Promising Therapeutic Strategy for Cartilage Regeneration. TISSUE ENGINEERING PART B-REVIEWS 2016; 22:341-357. [PMID: 26905221 DOI: 10.1089/ten.teb.2015.0300] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Drug discovery and development has been garnering an increasing trend of research due to the growing incidence of the diverse types of diseases. Recently, drug repositioning, also known as drug repurposing, has been emerging parallel to cancer and tissue engineering studies. Drug repositioning involves the application of currently approved or even abandoned drugs as alternative treatments to other diseases or as biomaterials in other fields including cell therapy and tissue engineering. In this review, the advancement of the antiangiogenesis drugs that were used as treatment for cancer and other diseases, with particular focus on bevacizumab, will be described. This will include an overview of the nature and progression of osteoarthritis (OA), one of the leading global degenerative diseases that cause morbidity, and the development of its therapeutic strategies. In addition, this will also feature the nonsteroidal anti-inflammatory drugs that are commonly prescribed for OA and the benefits of repositioning bevacizumab as alternative treatments for other diseases and as biomaterials for cartilage regeneration. To date, a few number of studies, employing different modes of administration and varying dosages in diverse animal models, have shown that bevacizumab can be used as a signal and can promote both in vitro and in vivo cartilage regeneration. However, other antiangiogenesis drugs and their effects in chondrogenesis and cartilage regeneration are also worth investigating.
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Affiliation(s)
- Soojung Lee
- 1 Regenerative Medicine Laboratory, Department of Biomedical Science and Technology, Center for Stem Cell Research, Institute of Biomedical Science & Technology, Konkuk University , Seoul, Republic of Korea
| | - Judee Grace E Nemeño
- 1 Regenerative Medicine Laboratory, Department of Biomedical Science and Technology, Center for Stem Cell Research, Institute of Biomedical Science & Technology, Konkuk University , Seoul, Republic of Korea
| | - Jeong Ik Lee
- 1 Regenerative Medicine Laboratory, Department of Biomedical Science and Technology, Center for Stem Cell Research, Institute of Biomedical Science & Technology, Konkuk University , Seoul, Republic of Korea.,2 Deparment of Veterinary Medicine, College of Veterinary Medicine, Konkuk University , Seoul, Republic of Korea
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66
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Hendow EK, Guhmann P, Wright B, Sofokleous P, Parmar N, Day RM. Biomaterials for hollow organ tissue engineering. FIBROGENESIS & TISSUE REPAIR 2016; 9:3. [PMID: 27014369 PMCID: PMC4806416 DOI: 10.1186/s13069-016-0040-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 03/15/2016] [Indexed: 12/14/2022]
Abstract
Tissue engineering is a rapidly advancing field that is likely to transform how medicine is practised in the near future. For hollow organs such as those found in the cardiovascular and respiratory systems or gastrointestinal tract, tissue engineering can provide replacement of the entire organ or provide restoration of function to specific regions. Larger tissue-engineered constructs often require biomaterial-based scaffold structures to provide support and structure for new tissue growth. Consideration must be given to the choice of material and manufacturing process to ensure the de novo tissue closely matches the mechanical and physiological properties of the native tissue. This review will discuss some of the approaches taken to date for fabricating hollow organ scaffolds and the selection of appropriate biomaterials.
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Affiliation(s)
- Eseelle K. Hendow
- Applied Biomedical Engineering Group, Division of Medicine, University College London, 21 University Street, London, UK
| | - Pauline Guhmann
- Applied Biomedical Engineering Group, Division of Medicine, University College London, 21 University Street, London, UK
| | - Bernice Wright
- Applied Biomedical Engineering Group, Division of Medicine, University College London, 21 University Street, London, UK
| | - Panagiotis Sofokleous
- Applied Biomedical Engineering Group, Division of Medicine, University College London, 21 University Street, London, UK
| | - Nina Parmar
- Applied Biomedical Engineering Group, Division of Medicine, University College London, 21 University Street, London, UK
| | - Richard M. Day
- Applied Biomedical Engineering Group, Division of Medicine, University College London, 21 University Street, London, UK
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67
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Siemionow M. Vascularized composite allotransplantation: a new concept in musculoskeletal regeneration. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:266. [PMID: 26507199 DOI: 10.1007/s10856-015-5601-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 10/05/2015] [Indexed: 06/05/2023]
Abstract
Over the past 20 years, the fields of biomaterial sciences and tissue engineering have evolved into new clinically relevant applications including regenerative medicine and cell based therapies. Tissue engineering therapies are based on different types of materials and scaffolds combined with cells and submitted to engineering processes in order to create bio-scaffolds which will improve or replace biological functions. Despite the effort, only a few therapies, such as bone, cartilage and nerve, succeeded in clinical applications. Furthermore, the major drawback in standard application of these therapies was the critical size defects which could be covered with engineered materials, as well as inability to provide sustainable vascular supply to the created bio-scaffolds. In 1998, the first successful hand transplantation was performed in France, and the field of vascularized composite allotransplantation (VCA) was introduced into the armamentarium of reconstructive surgery (Dubernard in Am J Transplant 5(6):1580-1, 2005; Petruzzo et al. in Am J Transplant 6(7):1718-24, 2006; Lanzetta et al. in Transplantation 79(9):1210-4, 2005). As a result, a new generation of transplants including hand, face, larynx abdominal wall, lower extremities and penile transplantation became available to patients who had lost these unique organs and were previously unable to achieve restored function using standard reconstructive procedures. Ethical debate on the need for life-long immunosuppressive therapy to prevent rejection of the VCA overshadowed the success of face and hand transplants. Thus, a new, challenging opportunity developed to combine approaches of tissue engineering and regenerative medicine and ultimately restore the framework, function, aesthetics and survival of the VSA transplants. This overview presents the unique opportunities of merging established and new technologies into the burgeoning field of reconstructive transplantation.
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Affiliation(s)
- Maria Siemionow
- University of Illinois at Chicago, 900 South Ashland, MC 944, Chicago, IL, 60640, USA.
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68
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Asano Y, Shimoda H, Okano D, Matsusaki M, Akashi M. Transplantation of three-dimensional artificial human vascular tissues fabricated using an extracellular matrix nanofilm-based cell-accumulation technique. J Tissue Eng Regen Med 2015; 11:1303-1307. [DOI: 10.1002/term.2108] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 09/30/2015] [Accepted: 10/15/2015] [Indexed: 12/14/2022]
Affiliation(s)
- Yoshiya Asano
- Department of Neuroanatomy, Cell Biology and Histology; Hirosaki University Graduate School of Medicine; Japan
| | - Hiroshi Shimoda
- Department of Neuroanatomy, Cell Biology and Histology; Hirosaki University Graduate School of Medicine; Japan
- Department of Anatomical Science; Hirosaki University Graduate School of Medicine; Japan
| | - Daisuke Okano
- Department of Neuroanatomy, Cell Biology and Histology; Hirosaki University Graduate School of Medicine; Japan
| | - Michiya Matsusaki
- Department of Applied Chemistry, Graduate School of Engineering; Osaka University; Japan
| | - Mitsuru Akashi
- Department of Applied Chemistry, Graduate School of Engineering; Osaka University; Japan
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Campbell J, McGuinness I, Wirz H, Sharon A, Sauer-Budge AF. Multimaterial and Multiscale Three-Dimensional Bioprinter. J Nanotechnol Eng Med 2015. [DOI: 10.1115/1.4031230] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We have developed a three-dimensional (3D) bioprinting system capable of multimaterial and multiscale deposition to enable the next generation of “bottom-up” tissue engineering. This area of research resides at the interface of engineering and life sciences. As such, it entails the design and implementation of diverse elements: a novel hydrogel-based bioink, a 3D bioprinter, automation software, and mammalian cell culture. Our bioprinter has three components uniquely combined into a comprehensive tool: syringe pumps connected to a selector valve that allow precise application of up to five different materials with varying viscosities and chemistries, a high velocity/high-precision x–y–z stage to accommodate the most rapid speeds allowable by the printed materials, and temperature control of the bioink reservoirs, lines, and printing environment. Our custom-designed bioprinter is able to print multiple materials (or multiple cell types in the same material) concurrently with various feature sizes (100 μm–1 mm wide; 100 μm–1 cm high). One of these materials is a biocompatible, printable bioink that has been used to test for cell survival within the hydrogel following printing. Hand-printed (HP) controls show that our bioprinter does not adversely affect the viability of the printed cells. Here, we report the design and build of the 3D bioprinter, the optimization of the bioink, and the stability and viability of our printed constructs.
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Affiliation(s)
- Jennifer Campbell
- Center for Manufacturing Innovation, Fraunhofer USA, Brookline, MA 02446 e-mail:
| | - Ian McGuinness
- Center for Manufacturing Innovation, Fraunhofer USA, Brookline, MA 02446 e-mail:
| | - Holger Wirz
- Center for Manufacturing Innovation, Fraunhofer USA, Brookline, MA 02446 e-mail:
| | - Andre Sharon
- Mem. ASME Center for Manufacturing Innovation, Fraunhofer USA, Brookline, MA 02446
- Mechanical Engineering Department, Boston University, Boston, MA 02215 e-mail:
| | - Alexis F. Sauer-Budge
- Center for Manufacturing Innovation, Fraunhofer USA, Brookline, MA 02446
- Biomedical Engineering Department, Boston University, Boston, MA 02215 e-mail:
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70
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Leitão AF, Faria MA, Faustino AMR, Moreira R, Mela P, Loureiro L, Silva I, Gama M. A Novel Small-Caliber Bacterial Cellulose Vascular Prosthesis: Production, Characterization, and Preliminary In Vivo Testing. Macromol Biosci 2015; 16:139-50. [DOI: 10.1002/mabi.201500251] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 08/20/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Alexandre F. Leitão
- CEB-Centre of Biological Engineering; University of Minho; Braga 4710-057 Portugal
| | - Miguel A. Faria
- Departamento de Clínicas Veterinárias; Laboratório de Farmacologia e Neurobiologia; Unidade Multidisciplinar de Investigação Biomédica (UMIB); ICBAS- Biomedical Sciences Institute Abel Salazar; University of Porto; Oporto 4050-313 Portugal
| | - Augusto M. R. Faustino
- ICBAS- Biomedical Sciences Institute Abel Salazar; University of Porto; Oporto 4050-313 Portugal
| | - Ricardo Moreira
- Department of Tissue Engineering & Textile Implants; AME-Helmholtz Institute for Biomedical Engineering; D-52074 Aachen Germany
| | - Petra Mela
- Department of Tissue Engineering & Textile Implants; AME-Helmholtz Institute for Biomedical Engineering; D-52074 Aachen Germany
| | - Luís Loureiro
- Serviço de Angiologia e Cirurgia Vascular; Centro Hospitalar do Porto; Oporto 4050-313 Portugal
| | - Ivone Silva
- Serviço de Angiologia e Cirurgia Vascular; Centro Hospitalar do Porto; Oporto 4050-313 Portugal
| | - Miguel Gama
- CEB-Centre of Biological Engineering; University of Minho; Braga 4710-057 Portugal
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71
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Dettin M, Zamuner A, Roso M, Iucci G, Samouillan V, Danesin R, Modesti M, Conconi MT. Facile and selective covalent grafting of an RGD-peptide to electrospun scaffolds improves HUVEC adhesion. J Pept Sci 2015; 21:786-95. [DOI: 10.1002/psc.2808] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 07/31/2015] [Accepted: 08/10/2015] [Indexed: 12/18/2022]
Affiliation(s)
- Monica Dettin
- Department of Industrial Engineering; University of Padova; Padova Italy
| | - Annj Zamuner
- Department of Industrial Engineering; University of Padova; Padova Italy
| | - Martina Roso
- Department of Industrial Engineering; University of Padova; Padova Italy
| | | | - Valerie Samouillan
- Inter-university Centre for Materials Research and Engineering; University Toulouse-Paul Sabatier; Toulouse France
| | - Roberta Danesin
- Department of Industrial Engineering; University of Padova; Padova Italy
| | - Michele Modesti
- Department of Industrial Engineering; University of Padova; Padova Italy
| | - Maria Teresa Conconi
- Department of Pharmaceutical and Pharmacological Sciences; University of Padova; Padova Italy
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72
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Itoh M, Nakayama K, Noguchi R, Kamohara K, Furukawa K, Uchihashi K, Toda S, Oyama JI, Node K, Morita S. Scaffold-Free Tubular Tissues Created by a Bio-3D Printer Undergo Remodeling and Endothelialization when Implanted in Rat Aortae. PLoS One 2015; 10:e0136681. [PMID: 26325298 PMCID: PMC4556622 DOI: 10.1371/journal.pone.0136681] [Citation(s) in RCA: 150] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 08/06/2015] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Small caliber vascular prostheses are not clinically available because synthetic vascular prostheses lack endothelial cells which modulate platelet activation, leukocyte adhesion, thrombosis, and the regulation of vasomotor tone by the production of vasoactive substances. We developed a novel method to create scaffold-free tubular tissue from multicellular spheroids (MCS) using a "Bio-3D printer"-based system. This system enables the creation of pre-designed three-dimensional structures using a computer controlled robotics system. With this system, we created a tubular structure and studied its biological features. METHODS AND RESULTS Using a "Bio-3D printer," we made scaffold-free tubular tissues (inner diameter of 1.5 mm) from a total of 500 MCSs (2.5× 104 cells per one MCS) composed of human umbilical vein endothelial cells (40%), human aortic smooth muscle cells (10%), and normal human dermal fibroblasts (50%). The tubular tissues were cultured in a perfusion system and implanted into the abdominal aortas of F344 nude rats. We assessed the flow by ultrasonography and performed histological examinations on the second (n = 5) and fifth (n = 5) day after implantation. All grafts were patent and remodeling of the tubular tissues (enlargement of the lumen area and thinning of the wall) was observed. A layer of endothelial cells was confirmed five days after implantation. CONCLUSIONS The scaffold-free tubular tissues made of MCS using a Bio-3D printer underwent remodeling and endothelialization. Further studies are warranted to elucidate the underlying mechanism of endothelialization and its function, as well as the long-term results.
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Affiliation(s)
- Manabu Itoh
- Department of Thoracic and Cardiovascular Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Koichi Nakayama
- Biomedical Engineering Course Advanced Technology, Fusion Graduate School of Science and Engineering, Saga University, Saga, Japan
| | - Ryo Noguchi
- Department of Thoracic and Cardiovascular Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Keiji Kamohara
- Department of Thoracic and Cardiovascular Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Kojirou Furukawa
- Department of Thoracic and Cardiovascular Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Kazuyoshi Uchihashi
- Department of Pathology & Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Shuji Toda
- Department of Pathology & Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Jun-ichi Oyama
- Department of Cardiovascular Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Koichi Node
- Department of Cardiovascular Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Shigeki Morita
- Department of Thoracic and Cardiovascular Surgery, Faculty of Medicine, Saga University, Saga, Japan
- * E-mail:
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73
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Vascularisation in regenerative therapeutics and surgery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 54:225-38. [DOI: 10.1016/j.msec.2015.05.045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 05/13/2015] [Indexed: 01/20/2023]
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74
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Fernández-Muiños T, Recha-Sancho L, López-Chicón P, Castells-Sala C, Mata A, Semino CE. Bimolecular based heparin and self-assembling hydrogel for tissue engineering applications. Acta Biomater 2015; 16:35-48. [PMID: 25595471 DOI: 10.1016/j.actbio.2015.01.008] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2014] [Revised: 12/05/2014] [Accepted: 01/07/2015] [Indexed: 10/24/2022]
Abstract
One major goal of tissue engineering is to develop new biomaterials that are similar structurally and functionally to the extracellular matrix (ECM) to mimic natural cell environments. Recently, different types of biomaterials have been developed for tissue engineering applications. Among them, self-assembling peptides are attractive candidates to create artificial cellular niches, because their nanoscale network and biomechanical properties are similar to those of the natural ECM. Here, we describe the development of a new biomaterial for tissue engineering composed by a simple combination of the self-assembling peptide RAD16-I and heparin sodium salt. As a consequence of the presence of heparin moieties the material acquired enhances the capacity of specific binding and release of growth factors (GFs) with heparin binding affinity such as VEGF165. Promising results were obtained in the vascular tissue engineering area, where the new composite material supported the development of tubular-like structures within a three dimensional (3D) culture model. Moreover, the new scaffold enhances the cell survival and chondrogenic commitment of adipose-derived stem cells (ADSC). Interestingly, the expression of specific markers of mature cartilage tissue including collagen type II was confirmed by western blot and real-time PCR. Furthermore, positive staining for proteoglycans (PGs) indicated the synthesis of cartilage tissue ECM components. Finally, the constructs did not mineralize and exhibited mechanical properties of a tissue undergoing chondrogenesis. Altogether, these results suggest that the new composite is a promising "easy to prepare" material for different reparative and regenerative applications.
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75
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Kucukgul C, Ozler SB, Inci I, Karakas E, Irmak S, Gozuacik D, Taralp A, Koc B. 3D bioprinting of biomimetic aortic vascular constructs with self-supporting cells. Biotechnol Bioeng 2015; 112:811-21. [DOI: 10.1002/bit.25493] [Citation(s) in RCA: 117] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 09/29/2014] [Accepted: 11/03/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Can Kucukgul
- Industrial and Manufacturing System Engineering; Faculty of Engineering and Natural Sciences; Sabanci University; Istanbul 34956 Turkey
| | - S. Burce Ozler
- Industrial and Manufacturing System Engineering; Faculty of Engineering and Natural Sciences; Sabanci University; Istanbul 34956 Turkey
| | - Ilyas Inci
- Biological Sciences & Bioengineering; Faculty of Engineering and Natural Sciences; Sabanci University; Istanbul Turkey
| | - Ezgi Karakas
- Biological Sciences & Bioengineering; Faculty of Engineering and Natural Sciences; Sabanci University; Istanbul Turkey
| | - Ster Irmak
- Biological Sciences & Bioengineering; Faculty of Engineering and Natural Sciences; Sabanci University; Istanbul Turkey
| | - Devrim Gozuacik
- Biological Sciences & Bioengineering; Faculty of Engineering and Natural Sciences; Sabanci University; Istanbul Turkey
| | - Alpay Taralp
- Material Science and Engineering; Faculty of Engineering and Natural Sciences; Sabanci University; Istanbul Turkey
| | - Bahattin Koc
- Industrial and Manufacturing System Engineering; Faculty of Engineering and Natural Sciences; Sabanci University; Istanbul 34956 Turkey
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76
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Wang XY, Pei Y, Xie M, Jin ZH, Xiao YS, Wang Y, Zhang LN, Li Y, Huang WH. An artificial blood vessel implanted three-dimensional microsystem for modeling transvascular migration of tumor cells. LAB ON A CHIP 2015; 15:1178-87. [PMID: 25565271 DOI: 10.1039/c4lc00973h] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Reproducing a tumor microenvironment consisting of blood vessels and tumor cells for modeling tumor invasion in vitro is particularly challenging. Here, we report an artificial blood vessel implanted 3D microfluidic system for reproducing transvascular migration of tumor cells. The transparent, porous and elastic artificial blood vessels are obtained by constructing polysaccharide cellulose-based microtubes using a chitosan sacrificial template, and possess excellent cytocompatibility, permeability, and mechanical characteristics. The artificial blood vessels are then fully implanted into the collagen matrix to reconstruct the 3D microsystem for modeling transvascular migration of tumor cells. Well-defined simulated vascular lumens were obtained by proliferation of the human umbilical vein endothelial cells (HUVECs) lining the artificial blood vessels, which enables us to reproduce structures and functions of blood vessels and replicate various hemodynamic parameters. Based on this model, the adhesion and transvascular migration of tumor cells across the artificial blood vessel have been well reproduced.
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Affiliation(s)
- Xue-Ying Wang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
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77
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Zhang H, Wang X, Lyu K, Gao S, Wang G, Fan C, Zhang XA, Yan J. Time Point-Based Integrative Analyses of Deep-Transcriptome Identify Four Signal Pathways in Blastemal Regeneration of Zebrafish Lower Jaw. Stem Cells 2015; 33:806-18. [DOI: 10.1002/stem.1899] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Revised: 10/09/2014] [Accepted: 10/30/2014] [Indexed: 01/24/2023]
Affiliation(s)
- Hui Zhang
- Department of Biology; Institute for Marine Biosystem and Neurosciences, College of Fisheries and Life Sciences; Shanghai Ocean University Shanghai People's Republic of China
| | - Xuelong Wang
- Department of Biology; Institute for Marine Biosystem and Neurosciences, College of Fisheries and Life Sciences; Shanghai Ocean University Shanghai People's Republic of China
| | - Kailun Lyu
- Department of Biology; Institute for Marine Biosystem and Neurosciences, College of Fisheries and Life Sciences; Shanghai Ocean University Shanghai People's Republic of China
| | - Siqi Gao
- Department of Biology; Institute for Marine Biosystem and Neurosciences, College of Fisheries and Life Sciences; Shanghai Ocean University Shanghai People's Republic of China
| | - Guan Wang
- Genergy Biotechnology (Shanghai) Co., Ltd.; Shanghai People's Republic of China
| | - Chunxin Fan
- Department of Biology; Institute for Marine Biosystem and Neurosciences, College of Fisheries and Life Sciences; Shanghai Ocean University Shanghai People's Republic of China
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources; Ministry of Education, Shanghai Ocean University; Shanghai People's Republic of China
| | - Xin A. Zhang
- Stephenson Cancer Center and Department of Physiology; The University of Oklahoma Health Sciences Center; Oklahoma City Oklahoma USA
| | - Jizhou Yan
- Department of Biology; Institute for Marine Biosystem and Neurosciences, College of Fisheries and Life Sciences; Shanghai Ocean University Shanghai People's Republic of China
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources; Ministry of Education, Shanghai Ocean University; Shanghai People's Republic of China
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78
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Kaebisch C, Schipper D, Babczyk P, Tobiasch E. The role of purinergic receptors in stem cell differentiation. Comput Struct Biotechnol J 2014; 13:75-84. [PMID: 26900431 PMCID: PMC4720018 DOI: 10.1016/j.csbj.2014.11.003] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Revised: 10/31/2014] [Accepted: 11/03/2014] [Indexed: 12/20/2022] Open
Abstract
A major challenge modern society has to face is the increasing need for tissue regeneration due to degenerative diseases or tumors, but also accidents or warlike conflicts. There is great hope that stem cell-based therapies might improve current treatments of cardiovascular diseases, osteochondral defects or nerve injury due to the unique properties of stem cells such as their self-renewal and differentiation potential. Since embryonic stem cells raise severe ethical concerns and are prone to teratoma formation, adult stem cells are still in the focus of research. Emphasis is placed on cellular signaling within these cells and in between them for a better understanding of the complex processes regulating stem cell fate. One of the oldest signaling systems is based on nucleotides as ligands for purinergic receptors playing an important role in a huge variety of cellular processes such as proliferation, migration and differentiation. Besides their natural ligands, several artificial agonists and antagonists have been identified for P1 and P2 receptors and are already used as drugs. This review outlines purinergic receptor expression and signaling in stem cells metabolism. We will briefly describe current findings in embryonic and induced pluripotent stem cells as well as in cancer-, hematopoietic-, and neural crest-derived stem cells. The major focus will be placed on recent findings of purinergic signaling in mesenchymal stem cells addressed in in vitro and in vivo studies, since stem cell fate might be manipulated by this system guiding differentiation towards the desired lineage in the future.
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Affiliation(s)
| | | | | | - Edda Tobiasch
- Department of Natural Sciences, Bonn-Rhine-Sieg University of Applied Sciences, Von-Liebig-Str. 20, 53359 Rheinbach, Germany
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79
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Arslan E, Garip IC, Gulseren G, Tekinay AB, Guler MO. Bioactive supramolecular peptide nanofibers for regenerative medicine. Adv Healthc Mater 2014; 3:1357-76. [PMID: 24574311 DOI: 10.1002/adhm.201300491] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 11/19/2013] [Indexed: 11/09/2022]
Abstract
Recent advances in understanding of cell-matrix interactions and the role of the extracellular matrix (ECM) in regulation of cellular behavior have created new perspectives for regenerative medicine. Supramolecular peptide nanofiber systems have been used as synthetic scaffolds in regenerative medicine applications due to their tailorable properties and ability to mimic ECM proteins. Through designed bioactive epitopes, peptide nanofiber systems provide biomolecular recognition sites that can trigger specific interactions with cell surface receptors. The present Review covers structural and biochemical properties of the self-assembled peptide nanofibers for tissue regeneration, and highlights studies that investigate the ability of ECM mimetic peptides to alter cellular behavior including cell adhesion, proliferation, and/or differentiation.
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Affiliation(s)
- Elif Arslan
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM); Bilkent University; Ankara 06800 Turkey
| | - I. Ceren Garip
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM); Bilkent University; Ankara 06800 Turkey
| | - Gulcihan Gulseren
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM); Bilkent University; Ankara 06800 Turkey
| | - Ayse B. Tekinay
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM); Bilkent University; Ankara 06800 Turkey
| | - Mustafa O. Guler
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM); Bilkent University; Ankara 06800 Turkey
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80
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Bertanha M, Moroz A, Jaldin RG, Silva RA, Rinaldi JC, Golim MA, Felisbino SL, Domingues MA, Sobreira ML, Reis PP, Deffune E. Morphofunctional characterization of decellularized vena cava as tissue engineering scaffolds. Exp Cell Res 2014; 326:103-11. [DOI: 10.1016/j.yexcr.2014.05.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 05/24/2014] [Accepted: 05/26/2014] [Indexed: 11/28/2022]
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81
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Blood vessel-derived acellular matrix for vascular graft application. BIOMED RESEARCH INTERNATIONAL 2014; 2014:685426. [PMID: 25136610 PMCID: PMC4124812 DOI: 10.1155/2014/685426] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 06/12/2014] [Accepted: 07/07/2014] [Indexed: 01/22/2023]
Abstract
To overcome the issues connected to the use of autologous vascular grafts and artificial materials for reconstruction of small diameter (<6 mm) blood vessels, this study aimed to develop acellular matrix- (AM-) based vascular grafts. Rat iliac arteries were decellularized by a detergent-enzymatic treatment, whereas endothelial cells (ECs) were obtained through enzymatic digestion of rat skin followed by immunomagnetic separation of CD31-positive cells. Sixteen female Lewis rats (8 weeks old) received only AM or previously in vitro reendothelialized AM as abdominal aorta interposition grafts (about 1 cm). The detergent-enzymatic treatment completely removed the cellular part of vessels and both MHC class I and class II antigens. One month after surgery, the luminal surface of implanted AMs was partially covered by ECs and several platelets adhered in the areas lacking cell coverage. Intimal hyperplasia, already detected after 1 month, increased at 3 months. On the contrary, all grafts composed by AM and ECs were completely covered at 1 month and their structure was similar to that of native vessels at 3 months. Taken together, our findings show that prostheses composed of AM preseeded with ECs could be a promising approach for the replacement of blood vessels.
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82
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Conconi MT, Borgio L, Di Liddo R, Sartore L, Dalzoppo D, Amistà P, Lora S, Parnigotto PP, Grandi C. Evaluation of vascular grafts based on polyvinyl alcohol cryogels. Mol Med Rep 2014; 10:1329-34. [PMID: 24969541 DOI: 10.3892/mmr.2014.2348] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 02/27/2014] [Indexed: 11/06/2022] Open
Abstract
The present study designed and developed blood vessel substitutes (BVSs) composed of polyvinyl alcohol (PVA) cryogels. The in vitro results demonstrated that the coating of the polymer with lyophilized decellularized vascular matrix (DVM) greatly enhanced the adhesion of human umbilical vein endothelial cells (HUVECs). However, when PVA̸DVM BVSs were implanted into the abdominal aorta of Sprague‑Dawley rats, DVM was identified as a highly thrombogenic surface resulting in the mortality of all animals 3‑4 days after surgery. By contrast, all rats implanted with PVA survived and were sacrificed after 12 months. The luminal surface of the explanted grafts was completely covered by endothelial cells and the inner diameter was similar to that of the original vessel. In conclusion, the present study indicated that PVA may be considered as a promising biomaterial for the fabrication of artificial vessels.
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Affiliation(s)
- Maria Teresa Conconi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Padua 35131, Italy
| | - Luca Borgio
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Padua 35131, Italy
| | - Rosa Di Liddo
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Padua 35131, Italy
| | - Leonardo Sartore
- Department of Plastic and Reconstructive Surgery, University of Padua, Padua 35131, Italy
| | - Daniele Dalzoppo
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Padua 35131, Italy
| | - Pietro Amistà
- Department of Neuroradiology, Hospital of Rovigo, Rovigo 45100, Italy
| | - Silvano Lora
- Foundation for Biology and Regenerative Medicine, TES‑Tissue Engineering and Signaling (ONLUS), Padua 35131, Italy
| | - Pier Paolo Parnigotto
- Foundation for Biology and Regenerative Medicine, TES‑Tissue Engineering and Signaling (ONLUS), Padua 35131, Italy
| | - Claudio Grandi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Padua 35131, Italy
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83
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Hooper RC, Hernandez KA, Boyko T, Harper A, Joyce J, Golas AR, Spector JA. Fabrication and in vivo microanastomosis of vascularized tissue-engineered constructs. Tissue Eng Part A 2014; 20:2711-9. [PMID: 24712390 DOI: 10.1089/ten.tea.2013.0583] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Tissue engineering endeavors to create replacement tissues and restore function that may be lost through infection, trauma, and cancer. However, wide clinical application of engineered scaffolds has yet to come to fruition due to inadequate vascularization. Here, we fabricate hydrogel constructs using Pluronic(®) F127 as a sacrificial microfiber, creating microchannels within biocompatible, biodegradable type I collagen matrices. Microchannels were seeded with human umbilical vein endothelial cells (HUVEC) or HUVEC and human aortic smooth muscle cells (HASMC) in co-culture, generating constructs with an internal endothelialized microchannel. Histological analysis demonstrated HASMC/HUVEC-seeded constructs with a confluent lining after 7 days with preservation and further maturation of the lining after 14 days. Immunohistochemical staining demonstrated von Willebrand factor and CD31(+) endothelial cells along the luminal surface (neointima) and alpha-smooth muscle actin expressing smooth muscle cells in the subendothelial plane (neomedia). Additionally, the deposition of extracellular matrix (ECM) components, heparan sulfate and basal lamina collagen IV were detected after 14 days of culture. HUVEC-only- and HASMC/HUVEC-seeded microchannel-containing constructs were microsurgically anastomosed to rat femoral artery and vein and perfused, in vivo. Both HUVEC only and HUVEC/HAMSC-seeded constructs withstood physiologic perfusion pressures while their channels maintained their internal infrastructure. In conclusion, we have synthesized and performed microvascular anastomosis of tissue-engineered hydrogel constructs. This represents a significant advancement toward the generation of vascularized tissues and brings us closer to the fabrication of more complex tissues and solid organs for clinical application.
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Affiliation(s)
- Rachel Campbell Hooper
- Laboratory for Bioregenerative Medicine and Surgery, Division of Plastic Surgery, Weill Cornell Medical College , New York, New York
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84
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Dautriche CN, Xie Y, Sharfstein ST. Walking through trabecular meshwork biology: Toward engineering design of outflow physiology. Biotechnol Adv 2014; 32:971-83. [PMID: 24806891 DOI: 10.1016/j.biotechadv.2014.04.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 04/22/2014] [Accepted: 04/29/2014] [Indexed: 01/23/2023]
Abstract
According to the World Health Organization, glaucoma remains the second leading cause of blindness in the world. Glaucoma belongs to a group of optic neuropathies that is characterized by chronic degeneration of the optic nerve along with its supporting glia and vasculature. Despite significant advances in the field, there is no available cure for glaucoma. The trabecular meshwork has been implicated as the primary site for regulation of intraocular pressure, the only known modifiable factor in glaucoma development. In this review, we describe the current models for glaucoma studies, primary culture, anterior eye segments, and animal studies and their limitations. These models, especially anterior eye segments and animal tissues, often require careful interpretation given the inter-species variation and are cumbersome and expensive. The lack of an available in vitro 3D model to study trabecular meshwork cells and detailed mechanisms of their regulation of intraocular pressure has limited progress in the field of glaucoma research. In this paper, we review the current status of knowledge of the trabecular meshwork and how the current advances in tissue engineering techniques might be applied in an effort to engineer a synthetic trabecular meshwork as a 3D in vitro model to further advance glaucoma research. In addition, we describe strategies for selection and design of biomaterials for scaffold fabrication as well as extracellular matrix components to mimic and support the trabecular architecture. We also discuss possible uses for a bioengineered trabecular meshwork for both developing a fundamental understanding of trabecular meshwork biology as well as high-throughput screening of glaucoma drugs.
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Affiliation(s)
- Cula N Dautriche
- SUNY College of Nanoscale Science and Engineering, 257 Fuller Road, Albany, NY 12203, USA
| | - Yubing Xie
- SUNY College of Nanoscale Science and Engineering, 257 Fuller Road, Albany, NY 12203, USA
| | - Susan T Sharfstein
- SUNY College of Nanoscale Science and Engineering, 257 Fuller Road, Albany, NY 12203, USA.
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85
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Colton CK. Oxygen supply to encapsulated therapeutic cells. Adv Drug Deliv Rev 2014; 67-68:93-110. [PMID: 24582600 DOI: 10.1016/j.addr.2014.02.007] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 01/06/2014] [Accepted: 02/19/2014] [Indexed: 02/07/2023]
Abstract
Therapeutic cells encapsulated in immunobarrier devices have promise for treatment of a variety of human diseases without immunosuppression. The absence of sufficient oxygen supply to maintain viability and function of encapsulated tissue has been the most critical impediment to progress. Within the framework of oxygen supply limitations, we review the major issues related to development of these devices, primarily in the context of encapsulated islets of Langerhans for treating diabetes, including device designs and materials, supply of tissue, protection from immune rejection, and maintenance of cell viability and function. We describe various defensive measures investigated to enhance survival of transplanted tissue, and we review the diverse approaches to enhancement of oxygen transport to encapsulated tissue, including manipulation of diffusion distances and oxygen permeability of materials, induction of neovascularization with angiogenic factors and vascularizing membranes, and methods for increasing the oxygen concentration adjacent to encapsulated tissue so as to exceed that in the microvasculature. Recent developments, particularly in this latter area, suggest that the field is ready for clinical trials of encapsulated therapeutic cells to treat diabetes.
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86
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Abstract
With the high occurrence of cardiovascular disease and increasing numbers of patients requiring vascular access, there is a significant need for small-diameter (<6 mm inner diameter) vascular graft that can provide long-term patency. Despite the technological improvements, restenosis and graft thrombosis continue to hamper the success of the implants. Vascular tissue engineering is a new field that has undergone enormous growth over the last decade and has proposed valid solutions for blood vessels repair. The goal of vascular tissue engineering is to produce neovessels and neoorgan tissue from autologous cells using a biodegradable polymer as a scaffold. The most important advantage of tissue-engineered implants is that these tissues can grow, remodel, rebuild, and respond to injury. This review describes the development of polymeric materials over the years and current tissue engineering strategies for the improvement of vascular conduits.
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87
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Udan RS, Vadakkan TJ, Dickinson ME. Dynamic responses of endothelial cells to changes in blood flow during vascular remodeling of the mouse yolk sac. Development 2013; 140:4041-50. [PMID: 24004946 DOI: 10.1242/dev.096255] [Citation(s) in RCA: 125] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Despite extensive work showing the importance of blood flow in angiogenesis and vessel remodeling, very little is known about how changes in vessel diameter are orchestrated at the cellular level in response to mechanical forces. To define the cellular changes necessary for remodeling, we performed live confocal imaging of cultured mouse embryos during vessel remodeling. Our data revealed that vessel diameter increase occurs via two distinct processes that are dependent on normal blood flow: vessel fusions and directed endothelial cell migrations. Vessel fusions resulted in a rapid change in vessel diameter and were restricted to regions that experience the highest flow near the vitelline artery and vein. Directed cell migrations induced by blood flow resulted in the recruitment of endothelial cells to larger vessels from smaller capillaries and were observed in larger artery segments as they expanded. The dynamic and specific endothelial cell behaviors captured in this study reveal how sensitive endothelial cells are to changes in blood flow and how such responses drive vascular remodeling.
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Affiliation(s)
- Ryan S Udan
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX 77030, USA
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88
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Wang L, Li C, Chen Y, Dong S, Chen X, Zhou Y. Poly(lactic-co-glycolic) acid/nanohydroxyapatite scaffold containing chitosan microspheres with adrenomedullin delivery for modulation activity of osteoblasts and vascular endothelial cells. BIOMED RESEARCH INTERNATIONAL 2013; 2013:530712. [PMID: 23841075 PMCID: PMC3693124 DOI: 10.1155/2013/530712] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Revised: 05/07/2013] [Accepted: 05/17/2013] [Indexed: 11/29/2022]
Abstract
Adrenomedullin (ADM) is a bioactive regulatory peptide that affects migration and proliferation of diverse cell types, including endothelial cells, smooth muscle cells, and osteoblast-like cells. This study investigated the effects of sustained release of ADM on the modulation activity of osteoblasts and vascular endothelial cells in vitro. Chitosan microspheres (CMs) were developed for ADM delivery. Poly(lactic-co-glycolic) acid and nano-hydroxyapatite were used to prepare scaffolds containing microspheres with ADM. The CMs showed rough surface morphology and high porosity, and they were well-distributed. The scaffolds exhibited relatively uniform pore sizes with interconnected pores. The addition of CMs improved the mechanical properties of the scaffolds without affecting their high porosity. In vitro degradation tests indicated that the addition of CMs increased the water absorption of the scaffolds and inhibited pH decline of phosphate-buffered saline medium. The expression levels of osteogenic-related and angiogenic-related genes were determined in MG63 cells and in human umbilical vein endothelial cells cultured on the scaffolds, respectively. The expression levels of osteogenic-related and angiogenic-related proteins were also detected by western blot analysis. Their expression levels in cells were improved on the ADM delivery scaffolds at a certain time point. The in vitro evaluation suggests that the microsphere-scaffold system is suitable as a model for bone tissue engineering.
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Affiliation(s)
- Lin Wang
- VIP Integrated Department, School of Stomatology, Jilin University, 1500 Qinghua Road, Changchun 130021, China
| | - Chunyan Li
- Implant Center, School of Stomatology, Jilin University, Changchun 130021, China
| | - Yingxin Chen
- VIP Integrated Department, School of Stomatology, Jilin University, 1500 Qinghua Road, Changchun 130021, China
| | - Shujun Dong
- VIP Integrated Department, School of Stomatology, Jilin University, 1500 Qinghua Road, Changchun 130021, China
| | - Xuesi Chen
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Avenue, Changchun 130022, China
| | - Yanmin Zhou
- Implant Center, School of Stomatology, Jilin University, Changchun 130021, China
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Oh J, Kim K, Won SW, Cha C, Gaharwar A, Selimović Š, Bae H, Lee KH, Lee DH, Lee SH, Khademhosseini A. Microfluidic fabrication of cell adhesive chitosan microtubes. Biomed Microdevices 2013; 15:465-72. [PMID: 23355068 PMCID: PMC3651799 DOI: 10.1007/s10544-013-9746-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Chitosan has been used as a scaffolding material in tissue engineering due to its mechanical properties and biocompatibility. With increased appreciation of the effect of micro- and nanoscale environments on cellular behavior, there is increased emphasis on generating microfabricated chitosan structures. Here we employed a microfluidic coaxial flow-focusing system to generate cell adhesive chitosan microtubes of controlled sizes by modifying the flow rates of a chitosan pre-polymer solution and phosphate buffered saline (PBS). The microtubes were extruded from a glass capillary with a 300 μm inner diameter. After ionic crosslinking with sodium tripolyphosphate (TPP), fabricated microtubes had inner and outer diameter ranges of 70-150 μm and 120-185 μm. Computational simulation validated the controlled size of microtubes and cell attachment. To enhance cell adhesiveness on the microtubes, we mixed gelatin with the chitosan pre-polymer solution. During the fabrication of microtubes, fibroblasts suspended in core PBS flow adhered to the inner surface of chitosan-gelatin microtubes. To achieve physiological pH values, we adjusted pH values of chiotsan pre-polymer solution and TPP. In particular, we were able to improve cell viability to 92 % with pH values of 5.8 and 7.4 for chitosan and TPP solution respectively. Cell culturing for three days showed that the addition of the gelatin enhanced cell spreading and proliferation inside the chitosan-gelatin microtubes. The microfluidic fabrication method for ionically crosslinked chitosan microtubes at physiological pH can be compatible with a variety of cells and used as a versatile platform for microengineered tissue engineering.
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Affiliation(s)
- Jonghyun Oh
- Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Keekyoung Kim
- Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA 02115, USA
| | - Sung Wook Won
- Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Chaenyung Cha
- Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Akhilesh Gaharwar
- Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA 02115, USA
| | - Šeila Selimović
- Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Hojae Bae
- Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Kwang Ho Lee
- Department of Advanced Materials Science and Engineering, Kangwon National University, Chuncheon 200-701, South Korea
| | - Dong Hwan Lee
- Department of Mechanical Design Engineering, Chonbuk National University, Jeonju 664-14, South Korea
| | - Sang-Hoon Lee
- Department of Biomedical Engineering, College of Health Science, Korea University, Seoul 136-703, South Korea
| | - Ali Khademhosseini
- Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA 02115, USA
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90
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