1
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Janssens KLPM, Bovendeerd PHM. Impact of cardiac patch alignment on restoring post-infarct ventricular function. Biomech Model Mechanobiol 2024:10.1007/s10237-024-01877-9. [PMID: 39088120 DOI: 10.1007/s10237-024-01877-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 07/12/2024] [Indexed: 08/02/2024]
Abstract
Acute myocardial infarction (MI) leads to a loss of cardiac function which, following adverse ventricular remodeling (AVR), can ultimately result in heart failure. Tissue-engineered contractile patches placed over the infarct offer potential for restoring cardiac function and reducing AVR. In this computational study, we investigate how improvement of pump function depends on the orientation of the cardiac patch and the fibers therein relative to the left ventricle (LV). Additionally, we examine how model outcome depends on the choice of material properties for healthy and infarct tissue. In a finite element model of LV mechanics, an infarction was induced by eliminating active stress generation and increasing passive tissue stiffness in a region comprising 15% of the LV wall volume. The cardiac patch was modeled as a rectangular piece of healthy myocardium with a volume of 25% of the infarcted tissue. The orientation of the patch was varied from 0 to 150 ∘ relative to the circumferential plane. The infarct reduced stroke work by 34% compared to the healthy heart. Optimal patch support was achieved when the patch was oriented parallel to the subepicardial fiber direction, restoring 9% of lost functionality. Typically, about one-third of the total recovery was attributed to the patch, while the remainder resulted from restored functionality in native myocardium adjacent to the infarct. The patch contributes to cardiac function through two mechanisms. A contribution of tissue in the patch and an increased contribution of native tissue, due to favorable changes in mechanical boundary conditions.
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Affiliation(s)
- Koen L P M Janssens
- Department of Biomedical Engineering, Eindhoven University of Technology, 5600MB, Eindhoven, The Netherlands.
| | - Peter H M Bovendeerd
- Department of Biomedical Engineering, Eindhoven University of Technology, 5600MB, Eindhoven, The Netherlands
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2
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English EJ, Samolyk BL, Gaudette GR, Pins GD. Micropatterned fibrin scaffolds increase cardiomyocyte alignment and contractility for the fabrication of engineered myocardial tissue. J Biomed Mater Res A 2023; 111:1309-1321. [PMID: 36932841 PMCID: PMC11128133 DOI: 10.1002/jbm.a.37530] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 02/09/2023] [Accepted: 03/01/2023] [Indexed: 03/19/2023]
Abstract
Cardiovascular disease is the leading cause of death in the United States, which can result in blockage of a coronary artery, triggering a myocardial infarction (MI), scar tissue formation in the myocardium, and ultimately heart failure. Currently, the gold-standard solution for total heart failure is a heart transplantation. An alternative to total-organ transplantation is surgically remodeling the ventricle with the implantation of a cardiac patch. Acellular cardiac patches have previously been investigated using synthetic or decellularized native materials to improve cardiac function. However, a limitation of this strategy is that acellular cardiac patches only reshape the ventricle and do not increase cardiac contractile function. Toward the development of a cardiac patch, our laboratory previously developed a cell-populated composite fibrin scaffold and aligned microthreads to recapitulate the mechanical properties of native myocardium. In this study, we explore micropatterning the surfaces of fibrin gels to mimic anisotropic native tissue architecture and promote cellular alignment of human induced pluripotent stem cell cardiomyocytes (hiPS-CM), which is crucial for increasing scaffold contractile properties. hiPS-CMs seeded on micropatterned surfaces exhibit cellular elongation, distinct sarcomere alignment, and circumferential connexin-43 staining at 14 days of culture, which are necessary for mature contractile properties. Constructs were also subject to electrical stimulation during culture to promote increased contractile properties. After 7 days of stimulation, contractile strains of micropatterned constructs were significantly higher than unpatterned controls. These results suggest that the use of micropatterned topographic cues on fibrin scaffolds may be a promising strategy for creating engineered cardiac tissue.
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Affiliation(s)
- Elizabeth J. English
- Biomedical Engineering Department, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
- Tessera Therapeutics, Somerville, Massachusetts, USA
| | - Bryanna L. Samolyk
- Biomedical Engineering Department, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
| | - Glenn R. Gaudette
- Biomedical Engineering Department, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
- Department of Engineering, Boston College, Newton, Massachusetts, USA
| | - George D. Pins
- Biomedical Engineering Department, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
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3
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In vitro cell stretching devices and their applications: From cardiomyogenic differentiation to tissue engineering. MEDICINE IN NOVEL TECHNOLOGY AND DEVICES 2023. [DOI: 10.1016/j.medntd.2023.100220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
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4
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Cordoves EM, Vunjak-Novakovic G, Kalfa DM. Designing Biocompatible Tissue Engineered Heart Valves In Situ: JACC Review Topic of the Week. J Am Coll Cardiol 2023; 81:994-1003. [PMID: 36889879 PMCID: PMC10666973 DOI: 10.1016/j.jacc.2022.12.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 12/19/2022] [Indexed: 03/08/2023]
Abstract
Valvular heart disease is a globally prevalent cause of morbidity and mortality, with both congenital and acquired clinical presentations. Tissue engineered heart valves (TEHVs) have the potential to radically shift the treatment landscape for valvular disease by functioning as life-long valve replacements that overcome the current limitations of bioprosthetic and mechanical valves. TEHVs are envisioned to meet these goals by functioning as bioinstructive scaffolds that guide the in situ generation of autologous valves capable of growth, repair, and remodeling within the patient. Despite their promise, clinical translation of in situ TEHVs has proven challenging largely because of the unpredictable and patient-specific nature of the TEHV and host interaction following implantation. In light of this challenge, we propose a framework for the development and clinical translation of biocompatible TEHVs, wherein the native valvular environment actively informs the valve's design parameters and sets the benchmarks by which it is functionally evaluated.
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Affiliation(s)
- Elizabeth M Cordoves
- Vagelos College of Physicians and Surgeons, Columbia University, New York, New York, USA; Department of Biomedical Engineering, Columbia University, New York, New York, USA
| | - Gordana Vunjak-Novakovic
- Department of Biomedical Engineering, Columbia University, New York, New York, USA; Department of Medicine, Columbia University, New York, New York, USA.
| | - David M Kalfa
- Division of Cardiac, Thoracic and Vascular Surgery, Section of Pediatric and Congenital Cardiac Surgery, New-York Presbyterian-Morgan Stanley Children's Hospital, Columbia University Medical Center, New York, New York, USA.
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5
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Singh BN, Yucel D, Garay BI, Tolkacheva EG, Kyba M, Perlingeiro RCR, van Berlo JH, Ogle BM. Proliferation and Maturation: Janus and the Art of Cardiac Tissue Engineering. Circ Res 2023; 132:519-540. [PMID: 36795845 PMCID: PMC9943541 DOI: 10.1161/circresaha.122.321770] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
During cardiac development and morphogenesis, cardiac progenitor cells differentiate into cardiomyocytes that expand in number and size to generate the fully formed heart. Much is known about the factors that regulate initial differentiation of cardiomyocytes, and there is ongoing research to identify how these fetal and immature cardiomyocytes develop into fully functioning, mature cells. Accumulating evidence indicates that maturation limits proliferation and conversely proliferation occurs rarely in cardiomyocytes of the adult myocardium. We term this oppositional interplay the proliferation-maturation dichotomy. Here we review the factors that are involved in this interplay and discuss how a better understanding of the proliferation-maturation dichotomy could advance the utility of human induced pluripotent stem cell-derived cardiomyocytes for modeling in 3-dimensional engineered cardiac tissues to obtain truly adult-level function.
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Affiliation(s)
- Bhairab N. Singh
- Department of Pediatrics, University of Minnesota, MN, USA
- Department of Biomedical Engineering, University of Minnesota, MN, USA
- Stem Cell Institute, University of Minnesota, MN, USA
| | - Dogacan Yucel
- Stem Cell Institute, University of Minnesota, MN, USA
- Department of Medicine, Cardiovascular Division, University of Minnesota, MN, USA
- Lillehei Heart Institute, University of Minnesota, MN, USA
| | - Bayardo I. Garay
- Stem Cell Institute, University of Minnesota, MN, USA
- Department of Medicine, Cardiovascular Division, University of Minnesota, MN, USA
- Lillehei Heart Institute, University of Minnesota, MN, USA
- Medical Scientist Training Program, University of Minnesota Medical School, MN, USA
| | - Elena G. Tolkacheva
- Department of Biomedical Engineering, University of Minnesota, MN, USA
- Lillehei Heart Institute, University of Minnesota, MN, USA
- Institute for Engineering in Medicine, University of Minnesota, MN, USA
| | - Michael Kyba
- Department of Pediatrics, University of Minnesota, MN, USA
- Stem Cell Institute, University of Minnesota, MN, USA
- Lillehei Heart Institute, University of Minnesota, MN, USA
| | - Rita C. R. Perlingeiro
- Stem Cell Institute, University of Minnesota, MN, USA
- Department of Medicine, Cardiovascular Division, University of Minnesota, MN, USA
- Lillehei Heart Institute, University of Minnesota, MN, USA
| | - Jop H. van Berlo
- Stem Cell Institute, University of Minnesota, MN, USA
- Department of Medicine, Cardiovascular Division, University of Minnesota, MN, USA
- Lillehei Heart Institute, University of Minnesota, MN, USA
| | - Brenda M. Ogle
- Department of Pediatrics, University of Minnesota, MN, USA
- Department of Biomedical Engineering, University of Minnesota, MN, USA
- Stem Cell Institute, University of Minnesota, MN, USA
- Lillehei Heart Institute, University of Minnesota, MN, USA
- Institute for Engineering in Medicine, University of Minnesota, MN, USA
- Masonic Cancer Center, University of Minnesota, MN, USA
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6
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Zhang Z, Dalan R, Hu Z, Wang JW, Chew NW, Poh KK, Tan RS, Soong TW, Dai Y, Ye L, Chen X. Reactive Oxygen Species Scavenging Nanomedicine for the Treatment of Ischemic Heart Disease. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2202169. [PMID: 35470476 DOI: 10.1002/adma.202202169] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/08/2022] [Indexed: 06/14/2023]
Abstract
Ischemic heart disease (IHD) is the leading cause of disability and mortality worldwide. Reactive oxygen species (ROS) have been shown to play key roles in the progression of diabetes, hypertension, and hypercholesterolemia, which are independent risk factors that lead to atherosclerosis and the development of IHD. Engineered biomaterial-based nanomedicines are under extensive investigation and exploration, serving as smart and multifunctional nanocarriers for synergistic therapeutic effect. Capitalizing on cell/molecule-targeting drug delivery, nanomedicines present enhanced specificity and safety with favorable pharmacokinetics and pharmacodynamics. Herein, the roles of ROS in both IHD and its risk factors are discussed, highlighting cardiovascular medications that have antioxidant properties, and summarizing the advantages, properties, and recent achievements of nanomedicines that have ROS scavenging capacity for the treatment of diabetes, hypertension, hypercholesterolemia, atherosclerosis, ischemia/reperfusion, and myocardial infarction. Finally, the current challenges of nanomedicines for ROS-scavenging treatment of IHD and possible future directions are discussed from a clinical perspective.
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Affiliation(s)
- Zhan Zhang
- Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, 999078, China
| | - Rinkoo Dalan
- Department of Endocrinology, Tan Tock Seng Hospital, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 408433, Singapore
| | - Zhenyu Hu
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Jiong-Wei Wang
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Department of Diagnostic Radiology and Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Nicholas Ws Chew
- Department of Cardiology, National University Heart Centre, National University Hospital, Singapore, 119074, Singapore
| | - Kian-Keong Poh
- Department of Cardiology, National University Heart Centre, National University Hospital, Singapore, 119074, Singapore
| | - Ru-San Tan
- Department of Cardiology, National Heart Centre Singapore, Singapore, 119609, Singapore
| | - Tuck Wah Soong
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Yunlu Dai
- Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, 999078, China
- MoE Frontiers Science Center for Precision Oncology, University of Macao, Taipa, Macau SAR, 999078, China
| | - Lei Ye
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Xiaoyuan Chen
- Department of Diagnostic Radiology and Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Department of Chemical and Biomolecular Engineering and Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore, 117597, Singapore
- Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
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7
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Bersie-Larson LM, Lai VK, Dhume RY, Provenzano PP, Barocas VH, Tranquillo RT. Elucidating the signal for contact guidance contained in aligned fibrils with a microstructural-mechanical model. J R Soc Interface 2022; 19:20210951. [PMID: 35582810 DOI: 10.1098/rsif.2021.0951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Despite its importance in physiological processes and tissue engineering, the mechanism underlying cell contact guidance in an aligned fibrillar network has defied elucidation due to multiple interdependent signals that such a network presents to cells, namely, anisotropy of adhesion, porosity and mechanical behaviour. A microstructural-mechanical model of fibril networks was used to assess the relative magnitudes of these competing signals in networks of varied alignment strength based on idealized cylindrical pseudopods projected into the aligned and orthogonal directions and computing the anisotropy of metrics chosen for adhesion, porosity and mechanical behaviour: cylinder-fibre contact area for adhesion, persistence length of pores for porosity and total force to displace fibres from the cylindrical volume as well as network stiffness experienced upon cylinder retraction for mechanical behaviour. The signals related to mechanical anisotropy are substantially higher than adhesion and porosity anisotropy, especially at stronger network alignments, although their signal to noise (S/N) values are substantially lower. The former finding is consistent with a recent report that fibroblasts can sense fibril alignment via anisotropy of network mechanical resistance, and the model reveals this can be due to either mechanical resistance to pseudopod protrusion or retraction given their signal and S/N values are similar.
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Affiliation(s)
- Lauren M Bersie-Larson
- Department of Biomedical Engineering, University of Minnesota - Twin Cities, Minneapolis, MN 55455, USA
| | - Victor K Lai
- Department of Chemical Engineering, University of Minnesota - Duluth, Duluth, MN, USA
| | - Rohit Y Dhume
- Department of Mechanical Engineering, University of Minnesota - Twin Cities, Minneapolis, MN 55455, USA
| | - Paolo P Provenzano
- Department of Biomedical Engineering, University of Minnesota - Twin Cities, Minneapolis, MN 55455, USA
| | - Victor H Barocas
- Department of Biomedical Engineering, University of Minnesota - Twin Cities, Minneapolis, MN 55455, USA
| | - Robert T Tranquillo
- Department of Biomedical Engineering, University of Minnesota - Twin Cities, Minneapolis, MN 55455, USA.,Department of Chemical Engineering and Materials Science, University of Minnesota - Twin Cities, Minneapolis, MN 55455, USA
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8
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Béland J, Duverger JE, Comtois P. Novel Analysis Method for Beating Cells Videomicroscopy Data: Functional Characterization of Culture Samples. Front Physiol 2022; 13:733706. [PMID: 35242049 PMCID: PMC8886216 DOI: 10.3389/fphys.2022.733706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 01/06/2022] [Indexed: 11/13/2022] Open
Abstract
Cell culture of cardiac tissue analog is becoming increasingly interesting for regenerative medicine (cell therapy and tissue engineering) and is widely used for high throughput cardiotoxicity. As a cost-effective approach to rapidly discard new compounds with high toxicity risks, cardiotoxicity evaluation is firstly done in vitro requiring cells/tissue with physiological/pathological characteristics (close to in vivo properties). Studying multicellular electrophysiological and contractile properties is needed to assess drug effects. Techniques favoring process automation which could help in simplifying screening drug candidates are thus of central importance. A lot of effort has been made to ameliorate in vitro models including several in vitro platforms for engineering neonatal rat cardiac tissues. However, most of the initial evaluation is done by studying the rate of activity. In this study, we present new approaches that use the videomicroscopy video of monolayer activity to study contractile properties of beating cells in culture. Two new variables are proposed which are linked to the contraction dynamics and are dependent on the rhythm of activity. Methods for evaluation of regional synchronicity within the image field of view are also presented that can rapidly determine regions with abnormal activity or heterogeneity in contraction dynamics.
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Affiliation(s)
- Jonathan Béland
- Research Centre, Montreal Heart Institute, Montreal, QC, Canada
- Department of Pharmacology and Physiology, Université de Montréal, Montreal, QC, Canada
| | - James Elber Duverger
- Research Centre, Montreal Heart Institute, Montreal, QC, Canada
- Institute of Biomedical Engineering, Université de Montréal, Montreal, QC, Canada
| | - Philippe Comtois
- Research Centre, Montreal Heart Institute, Montreal, QC, Canada
- Department of Pharmacology and Physiology, Université de Montréal, Montreal, QC, Canada
- Institute of Biomedical Engineering, Université de Montréal, Montreal, QC, Canada
- *Correspondence: Philippe Comtois,
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9
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Bejleri D, Robeson MJ, Brown ME, Hunter J, Maxwell JT, Streeter BW, Brazhkina O, Park HJ, Christman KL, Davis ME. In vivo evaluation of bioprinted cardiac patches composed of cardiac-specific extracellular matrix and progenitor cells in a model of pediatric heart failure. Biomater Sci 2022; 10:444-456. [PMID: 34878443 PMCID: PMC8772587 DOI: 10.1039/d1bm01539g] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Pediatric patients with congenital heart defects (CHD) often present with heart failure from increased load on the right ventricle (RV) due to both surgical methods to treat CHD and the disease itself. Patients with RV failure often require transplantation, which is limited due to lack of donor availability and rejection. Previous studies investigating the development and in vitro assessment of a bioprinted cardiac patch composed of cardiac extracellular matrix (cECM) and human c-kit + progenitor cells (hCPCs) showed that the construct has promise in treating cardiac dysfunction. The current study investigates in vivo cardiac outcomes of patch implantation in a rat model of RV failure. Patch parameters including cECM-inclusion and hCPC-inclusion are investigated. Assessments include hCPC retention, RV function, and tissue remodeling (vascularization, hypertrophy, and fibrosis). Animal model evaluation shows that both cell-free and neonatal hCPC-laden cECM-gelatin methacrylate (GelMA) patches improve RV function and tissue remodeling compared to other patch groups and controls. Inclusion of cECM is the most influential parameter driving therapeutic improvements, with or without cell inclusion. This study paves the way for clinical translation in treating pediatric heart failure using bioprinted GelMA-cECM and hCPC-GelMA-cECM patches.
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Affiliation(s)
- Donald Bejleri
- Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 1760 Haygood Dr, Atlanta, GA, 30322, USA.
| | - Matthew J Robeson
- Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 1760 Haygood Dr, Atlanta, GA, 30322, USA.
| | - Milton E Brown
- Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 1760 Haygood Dr, Atlanta, GA, 30322, USA.
| | - Jervaughn Hunter
- Department of Bioengineering and Sanford Consortium for Regenerative Medicine, University of California, San Diego, 2880 Torrey Pines Scenic Dr, La Jolla, CA, 92037, USA
| | - Joshua T Maxwell
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine, 2015 Uppergate Dr, Atlanta, GA, 30322, USA
| | - Benjamin W Streeter
- Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 1760 Haygood Dr, Atlanta, GA, 30322, USA.
| | - Olga Brazhkina
- Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 1760 Haygood Dr, Atlanta, GA, 30322, USA.
| | - Hyun-Ji Park
- Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 1760 Haygood Dr, Atlanta, GA, 30322, USA.
| | - Karen L Christman
- Department of Bioengineering and Sanford Consortium for Regenerative Medicine, University of California, San Diego, 2880 Torrey Pines Scenic Dr, La Jolla, CA, 92037, USA
| | - Michael E Davis
- Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 1760 Haygood Dr, Atlanta, GA, 30322, USA.
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine, 2015 Uppergate Dr, Atlanta, GA, 30322, USA
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10
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Cell contact guidance via sensing anisotropy of network mechanical resistance. Proc Natl Acad Sci U S A 2021; 118:2024942118. [PMID: 34266950 DOI: 10.1073/pnas.2024942118] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Despite the ubiquitous importance of cell contact guidance, the signal-inducing contact guidance of mammalian cells in an aligned fibril network has defied elucidation. This is due to multiple interdependent signals that an aligned fibril network presents to cells, including, at least, anisotropy of adhesion, porosity, and mechanical resistance. By forming aligned fibrin gels with the same alignment strength, but cross-linked to different extents, the anisotropic mechanical resistance hypothesis of contact guidance was tested for human dermal fibroblasts. The cross-linking was shown to increase the mechanical resistance anisotropy, without detectable change in network microstructure and without change in cell adhesion to the cross-linked fibrin gel. This methodology thus isolated anisotropic mechanical resistance as a variable for fixed anisotropy of adhesion and porosity. The mechanical resistance anisotropy |Y*| -1 - |X*| -1 increased over fourfold in terms of the Fourier magnitudes of microbead displacement |X*| and |Y*| at the drive frequency with respect to alignment direction Y obtained by optical forces in active microrheology. Cells were found to exhibit stronger contact guidance in the cross-linked gels possessing greater mechanical resistance anisotropy: the cell anisotropy index based on the tensor of cell orientation, which has a range 0 to 1, increased by 18% with the fourfold increase in mechanical resistance anisotropy. We also show that modulation of adhesion via function-blocking antibodies can modulate the guidance response, suggesting a concomitant role of cell adhesion. These results indicate that fibroblasts can exhibit contact guidance in aligned fibril networks by sensing anisotropy of network mechanical resistance.
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11
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Engineered cardiac tissue microsphere production through direct differentiation of hydrogel-encapsulated human pluripotent stem cells. Biomaterials 2021; 274:120818. [PMID: 34023620 DOI: 10.1016/j.biomaterials.2021.120818] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 03/02/2021] [Accepted: 04/07/2021] [Indexed: 02/06/2023]
Abstract
Engineered cardiac tissues that can be directly produced from human induced pluripotent stem cells (hiPSCs) in scalable, suspension culture systems are needed to meet the demands of cardiac regenerative medicine. Here, we demonstrate successful production of functional cardiac tissue microspheres through direct differentiation of hydrogel encapsulated hiPSCs. To form the microspheres, hiPSCs were suspended within the photocrosslinkable biomaterial, PEG-fibrinogen (25 million cells/mL), and encapsulated at a rate of 420,000 cells/minute using a custom microfluidic system. Even at this high cell density and rapid production rate, high intra-batch and batch-to-batch reproducibility was achieved. Following microsphere formation, hiPSCs maintained high cell viability and continued to grow within and beyond the original PEG-fibrinogen matrix. These initially soft microspheres (<250 Pa) supported efficient cardiac differentiation; spontaneous contractions initiated by differentiation day 8, and the microspheres contained >75% cardiomyocytes (CMs). CMs responded appropriately to pharmacological stimuli and exhibited 1:1 capture up to 6.0 Hz when electrically paced. Over time, cells formed cell-cell junctions and aligned myofibril fibers; engineered cardiac microspheres were maintained in culture over 3 years. The capability to rapidly generate uniform cardiac microsphere tissues is critical for advancing downstream applications including biomanufacturing, multi-well plate drug screening, and injection-based regenerative therapies.
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12
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Gähwiler EKN, Motta SE, Martin M, Nugraha B, Hoerstrup SP, Emmert MY. Human iPSCs and Genome Editing Technologies for Precision Cardiovascular Tissue Engineering. Front Cell Dev Biol 2021; 9:639699. [PMID: 34262897 PMCID: PMC8273765 DOI: 10.3389/fcell.2021.639699] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 03/31/2021] [Indexed: 12/12/2022] Open
Abstract
Induced pluripotent stem cells (iPSCs) originate from the reprogramming of adult somatic cells using four Yamanaka transcription factors. Since their discovery, the stem cell (SC) field achieved significant milestones and opened several gateways in the area of disease modeling, drug discovery, and regenerative medicine. In parallel, the emergence of clustered regularly interspaced short palindromic repeats (CRISPR)-associated protein 9 (CRISPR-Cas9) revolutionized the field of genome engineering, allowing the generation of genetically modified cell lines and achieving a precise genome recombination or random insertions/deletions, usefully translated for wider applications. Cardiovascular diseases represent a constantly increasing societal concern, with limited understanding of the underlying cellular and molecular mechanisms. The ability of iPSCs to differentiate into multiple cell types combined with CRISPR-Cas9 technology could enable the systematic investigation of pathophysiological mechanisms or drug screening for potential therapeutics. Furthermore, these technologies can provide a cellular platform for cardiovascular tissue engineering (TE) approaches by modulating the expression or inhibition of targeted proteins, thereby creating the possibility to engineer new cell lines and/or fine-tune biomimetic scaffolds. This review will focus on the application of iPSCs, CRISPR-Cas9, and a combination thereof to the field of cardiovascular TE. In particular, the clinical translatability of such technologies will be discussed ranging from disease modeling to drug screening and TE applications.
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Affiliation(s)
- Eric K. N. Gähwiler
- Institute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland
| | - Sarah E. Motta
- Institute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland
- Wyss Zurich, University and ETH Zurich, Zurich, Switzerland
| | - Marcy Martin
- Division of Pediatric Cardiology, Department of Pediatrics, Stanford School of Medicine, Stanford, CA, United States
- Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford School of Medicine, Stanford, CA, United States
- Stanford Cardiovascular Institute, Stanford School of Medicine, Stanford, CA, United States
| | - Bramasta Nugraha
- Molecular Parasitology Lab, Institute of Parasitology, University of Zurich, Zurich, Switzerland
- Bioscience Cardiovascular, Research and Early Development, Cardiovascular, Renal and Metabolism, R&D BioPharmaceuticals, AstraZeneca, Gothenburg, Sweden
| | - Simon P. Hoerstrup
- Institute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland
- Wyss Zurich, University and ETH Zurich, Zurich, Switzerland
| | - Maximilian Y. Emmert
- Institute for Regenerative Medicine (IREM), University of Zurich, Zurich, Switzerland
- Wyss Zurich, University and ETH Zurich, Zurich, Switzerland
- Department of Cardiovascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany
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13
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A continuum model and simulations for large deformation of anisotropic fiber-matrix composites for cardiac tissue engineering. J Mech Behav Biomed Mater 2021; 121:104627. [PMID: 34130078 DOI: 10.1016/j.jmbbm.2021.104627] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 05/29/2021] [Accepted: 06/01/2021] [Indexed: 11/22/2022]
Abstract
Cardiac patch therapies promise to restore heart function and lower the risk of heart failure after heart attack. Fiber-matrix engineered tissue scaffolds have gained significant attention due to their tunable micro-structures, providing nonlinear mechanical properties similar to native anisotropic heart tissues. Mechanical properties of engineered scaffolds directly affect the stress fields generated inside and around the tissue scaffolds and have significant impact on the tissue functionality. Currently, biomedical cardiac patches are designed through experimentation and there exists a need for an accurate model that will allow micro-structural design optimization and analysis of effectiveness of the implanted patches. We have developed a three-dimensional large strain continuum model that can predict nonlinear, anisotropic mechanical response of engineered tissue scaffolds that have two orientation families of fibers inside a bulk hydrogel matrix. We have validated the predictive capability of our continuum model for the fiber-matrix composite using selected experiments and a suite of detailed finite element analysis that incorporated the micro-structural details of the composites. Comparing the continuum model predictions (1 element) against the representative volume micro-structural geometry finite element simulations (with greater than 4,00,000 elements), we show that the proposed model can accurately predict nonlinear mechanical behavior of highly anisotropic tissue scaffolds in both the longitudinal and transverse directions, as a function of the critical design parameters inter-fiber angle and fiber spacing. We show that the model can also capture native heart tissue's anisotropic large strain mechanical response. We implemented our model in the finite element software Abaqus by writing a user material subroutine UANISOHYPER and demonstrated its predictive abilities by conducting a full three-dimensional analysis of engineered tissue patch application on an infarcted heart.
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Chingale M, Zhu D, Cheng K, Huang K. Bioengineering Technologies for Cardiac Regenerative Medicine. Front Bioeng Biotechnol 2021; 9:681705. [PMID: 34150737 PMCID: PMC8209515 DOI: 10.3389/fbioe.2021.681705] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 04/12/2021] [Indexed: 12/11/2022] Open
Abstract
Cardiac regenerative medicine faces big challenges such as a lack of adult cardiac stem cells, low turnover of mature cardiomyocytes, and difficulty in therapeutic delivery to the injured heart. The interaction of bioengineering and cardiac regenerative medicine offers innovative solutions to this field. For example, cell reprogramming technology has been applied by both direct and indirect routes to generate patient-specific cardiomyocytes. Various viral and non-viral vectors have been utilized for gene editing to intervene gene expression patterns during the cardiac remodeling process. Cell-derived protein factors, exosomes, and miRNAs have been isolated and delivered through engineered particles to overcome many innate limitations of live cell therapy. Protein decoration, antibody modification, and platelet membranes have been used for targeting and precision medicine. Cardiac patches have been used for transferring therapeutics with better retention and integration. Other technologies such as 3D printing and 3D culture have been used to create replaceable cardiac tissue. In this review, we discuss recent advancements in bioengineering and biotechnologies for cardiac regenerative medicine.
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Affiliation(s)
- Mira Chingale
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC, United States
| | - Dashuai Zhu
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC, United States.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, North Carolina State University, Raleigh, NC, United States
| | - Ke Cheng
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC, United States.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, North Carolina State University, Raleigh, NC, United States
| | - Ke Huang
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC, United States.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, North Carolina State University, Raleigh, NC, United States
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15
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Su H, Cantrell AC, Zeng H, Zhu SH, Chen JX. Emerging Role of Pericytes and Their Secretome in the Heart. Cells 2021; 10:548. [PMID: 33806335 PMCID: PMC8001346 DOI: 10.3390/cells10030548] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/25/2021] [Accepted: 02/27/2021] [Indexed: 12/11/2022] Open
Abstract
Pericytes, as mural cells covering microvascular capillaries, play an essential role in vascular remodeling and maintaining vascular functions and blood flow. Pericytes are crucial participants in the physiological and pathological processes of cardiovascular disease. They actively interact with endothelial cells, vascular smooth muscle cells (VSMCs), fibroblasts, and other cells via the mechanisms involved in the secretome. The secretome of pericytes, along with diverse molecules including proinflammatory cytokines, angiogenic growth factors, and the extracellular matrix (ECM), has great impacts on the formation, stabilization, and remodeling of vasculature, as well as on regenerative processes. Emerging evidence also indicates that pericytes work as mesenchymal cells or progenitor cells in cardiovascular regeneration. Their capacity for differentiation also contributes to vascular remodeling in different ways. Previous studies primarily focused on the roles of pericytes in organs such as the brain, retina, lung, and kidney; very few studies have focused on pericytes in the heart. In this review, following a brief introduction of the origin and fundamental characteristics of pericytes, we focus on pericyte functions and mechanisms with respect to heart disease, ending with the promising use of cardiac pericytes in the treatment of ischemic heart failure.
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Affiliation(s)
- Han Su
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA
- Department of General Surgery, Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Aubrey C Cantrell
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Heng Zeng
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Shai-Hong Zhu
- Department of General Surgery, Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Jian-Xiong Chen
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA
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16
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Hendrickson T, Mancino C, Whitney L, Tsao C, Rahimi M, Taraballi F. Mimicking cardiac tissue complexity through physical cues: A review on cardiac tissue engineering approaches. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2021; 33:102367. [PMID: 33549819 DOI: 10.1016/j.nano.2021.102367] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 01/06/2021] [Accepted: 01/15/2021] [Indexed: 02/08/2023]
Abstract
Cardiovascular diseases are the number one killer in the world.1,2 Currently, there are no clinical treatments to regenerate damaged cardiac tissue, leaving patients to develop further life-threatening cardiac complications. Cardiac tissue has multiple functional demands including vascularization, contraction, and conduction that require many synergic components to properly work. Most of these functions are a direct result of the cardiac tissue structure and composition, and, for this reason, tissue engineering strongly proposed to develop substitute engineered heart tissues (EHTs). EHTs usually have combined pluripotent stem cells and supporting scaffolds with the final aim to repair or replace the damaged native tissue. However, as simple as this idea is, indeed, it resulted, after many attempts in the field, to be very challenging. Without design complexity, EHTs remain unable to mature fully and integrate into surrounding heart tissue resulting in minimal in vivo effects.3 Lately, there has been a growing body of evidence that a complex, multifunctional approach through implementing scaffold designs, cellularization, and molecular release appears to be essential in the development of a functional cardiac EHTs.4-6 This review covers the advancements in EHTs developments focusing on how to integrate contraction, conduction, and vascularization mimics and how combinations have resulted in improved designs thus warranting further investigation to develop a clinically applicable treatment.
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Affiliation(s)
- Troy Hendrickson
- Center for Musculoskeletal Regeneration, Houston Methodist Research Institute, Houston Methodist, Houston, TX, USA; Orthopedics and Sports Medicine, Houston Methodist Hospital, Houston, TX, USA; Texas A&M MD/PhD Program, Texas A&M Health Science Center, College Station, TX, USA
| | - Chiara Mancino
- Center for Musculoskeletal Regeneration, Houston Methodist Research Institute, Houston Methodist, Houston, TX, USA; Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milano, (MI), Italy
| | - Lauren Whitney
- Texas A&M Biomedical Engineering, Texas A&M University, College Station, TX, USA
| | - Chris Tsao
- Center for Musculoskeletal Regeneration, Houston Methodist Research Institute, Houston Methodist, Houston, TX, USA
| | - Maham Rahimi
- Department of Cardiovascular Surgery, Houston Methodist, Houston, TX, USA
| | - Francesca Taraballi
- Center for Musculoskeletal Regeneration, Houston Methodist Research Institute, Houston Methodist, Houston, TX, USA; Orthopedics and Sports Medicine, Houston Methodist Hospital, Houston, TX, USA.
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17
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Mazzola M, Di Pasquale E. Toward Cardiac Regeneration: Combination of Pluripotent Stem Cell-Based Therapies and Bioengineering Strategies. Front Bioeng Biotechnol 2020; 8:455. [PMID: 32528940 PMCID: PMC7266938 DOI: 10.3389/fbioe.2020.00455] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 04/21/2020] [Indexed: 12/12/2022] Open
Abstract
Cardiovascular diseases represent the major cause of morbidity and mortality worldwide. Multiple studies have been conducted so far in order to develop treatments able to prevent the progression of these pathologies. Despite progress made in the last decade, current therapies are still hampered by poor translation into actual clinical applications. The major drawback of such strategies is represented by the limited regenerative capacity of the cardiac tissue. Indeed, after an ischaemic insult, the formation of fibrotic scar takes place, interfering with mechanical and electrical functions of the heart. Hence, the ability of the heart to recover after ischaemic injury depends on several molecular and cellular pathways, and the imbalance between them results into adverse remodeling, culminating in heart failure. In this complex scenario, a new chapter of regenerative medicine has been opened over the past 20 years with the discovery of induced pluripotent stem cells (iPSCs). These cells share the same characteristic of embryonic stem cells (ESCs), but are generated from patient-specific somatic cells, overcoming the ethical limitations related to ESC use and providing an autologous source of human cells. Similarly to ESCs, iPSCs are able to efficiently differentiate into cardiomyocytes (CMs), and thus hold a real regenerative potential for future clinical applications. However, cell-based therapies are subjected to poor grafting and may cause adverse effects in the failing heart. Thus, over the last years, bioengineering technologies focused their attention on the improvement of both survival and functionality of iPSC-derived CMs. The combination of these two fields of study has burst the development of cell-based three-dimensional (3D) structures and organoids which mimic, more realistically, the in vivo cell behavior. Toward the same path, the possibility to directly induce conversion of fibroblasts into CMs has recently emerged as a promising area for in situ cardiac regeneration. In this review we provide an up-to-date overview of the latest advancements in the application of pluripotent stem cells and tissue-engineering for therapeutically relevant cardiac regenerative approaches, aiming to highlight outcomes, limitations and future perspectives for their clinical translation.
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Affiliation(s)
- Marta Mazzola
- Stem Cell Unit, Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy
| | - Elisa Di Pasquale
- Stem Cell Unit, Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy.,Institute of Genetic and Biomedical Research (IRGB) - UOS of Milan, National Research Council (CNR), Milan, Italy
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18
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Toong DWY, Toh HW, Ng JCK, Wong PEH, Leo HL, Venkatraman S, Tan LP, Ang HY, Huang Y. Bioresorbable Polymeric Scaffold in Cardiovascular Applications. Int J Mol Sci 2020; 21:E3444. [PMID: 32414114 PMCID: PMC7279389 DOI: 10.3390/ijms21103444] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/06/2020] [Accepted: 05/08/2020] [Indexed: 12/12/2022] Open
Abstract
Advances in material science and innovative medical technologies have allowed the development of less invasive interventional procedures for deploying implant devices, including scaffolds for cardiac tissue engineering. Biodegradable materials (e.g., resorbable polymers) are employed in devices that are only needed for a transient period. In the case of coronary stents, the device is only required for 6-8 months before positive remodelling takes place. Hence, biodegradable polymeric stents have been considered to promote this positive remodelling and eliminate the issue of permanent caging of the vessel. In tissue engineering, the role of the scaffold is to support favourable cell-scaffold interaction to stimulate formation of functional tissue. The ideal outcome is for the cells to produce their own extracellular matrix over time and eventually replace the implanted scaffold or tissue engineered construct. Synthetic biodegradable polymers are the favoured candidates as scaffolds, because their degradation rates can be manipulated over a broad time scale, and they may be functionalised easily. This review presents an overview of coronary heart disease, the limitations of current interventions and how biomaterials can be used to potentially circumvent these shortcomings in bioresorbable stents, vascular grafts and cardiac patches. The material specifications, type of polymers used, current progress and future challenges for each application will be discussed in this manuscript.
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Affiliation(s)
- Daniel Wee Yee Toong
- School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore; (D.W.Y.T.); (L.P.T.)
| | - Han Wei Toh
- National Heart Centre Singapore, 5 Hospital Drive, Singapore 169609, Singapore; (H.W.T.); (J.C.K.N.); (P.E.H.W.)
- Department of Biomedical Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583, Singapore;
| | - Jaryl Chen Koon Ng
- National Heart Centre Singapore, 5 Hospital Drive, Singapore 169609, Singapore; (H.W.T.); (J.C.K.N.); (P.E.H.W.)
- Department of Biomedical Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583, Singapore;
| | - Philip En Hou Wong
- National Heart Centre Singapore, 5 Hospital Drive, Singapore 169609, Singapore; (H.W.T.); (J.C.K.N.); (P.E.H.W.)
- Duke-NUS Medical School, National University of Singapore, 8 College Road, Singapore 169857, Singapore
| | - Hwa Liang Leo
- Department of Biomedical Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583, Singapore;
| | - Subramanian Venkatraman
- Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore;
| | - Lay Poh Tan
- School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore; (D.W.Y.T.); (L.P.T.)
| | - Hui Ying Ang
- National Heart Centre Singapore, 5 Hospital Drive, Singapore 169609, Singapore; (H.W.T.); (J.C.K.N.); (P.E.H.W.)
- Department of Biomedical Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583, Singapore;
| | - Yingying Huang
- School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore; (D.W.Y.T.); (L.P.T.)
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19
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Xu C, Okpokwasili C, Huang Y, Shi X, Wu J, Liao J, Tang L, Hong Y. Optimizing Anisotropic Polyurethane Scaffolds to Mechanically Match with Native Myocardium. ACS Biomater Sci Eng 2020; 6:2757-2769. [PMID: 33313394 PMCID: PMC7725265 DOI: 10.1021/acsbiomaterials.9b01860] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Biodegradable cardiac patch is desirable to possess mechanical properties mimicking native myocardium for heart infarction treatment. We fabricated a series of anisotropic and biodegradable polyurethane porous scaffolds via thermally induced phase separation (TIPS) and tailored their mechanical properties by using various polyurethanes with different soft segments and varying polymer concentrations. The uniaxial mechanical properties, suture retention strength, ball-burst strength, and biaxial mechanical properties of the anisotropic porous scaffolds were optimized to mechanically match native myocardium. The optimal anisotropic scaffold had a ball burst strength (20.7 ± 1.5 N) comparable to that of native porcine myocardium (20.4 ± 6.0 N) and showed anisotropic behavior close to biaxial stretching behavior of the native porcine myocardium. Furthermore, the optimized porous scaffold was combined with a porcine myocardium-derived hydrogel to form a biohybrid scaffold. The biohybrid scaffold showed morphologies similar to the decellularized porcine myocardial matrix. This combination did not affect the mechanical properties of the synthetic scaffold alone. After in vivo rat subcutaneous implantation, the biohybrid scaffolds showed minimal immune response and exhibited higher cell penetration than the polyurethane scaffold alone. This biohybrid scaffold with biomimetic mechanics and good tissue compatibility would have great potential to be applied as a biodegradable acellular cardiac patch for myocardial infarction treatment.
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Affiliation(s)
- Cancan Xu
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Joint Biomedical Engineering Program, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Chuka Okpokwasili
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Joint Biomedical Engineering Program, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yihui Huang
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Joint Biomedical Engineering Program, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Xiaodan Shi
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Joint Biomedical Engineering Program, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jinglei Wu
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Joint Biomedical Engineering Program, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jun Liao
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Joint Biomedical Engineering Program, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Liping Tang
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Joint Biomedical Engineering Program, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yi Hong
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Joint Biomedical Engineering Program, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
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20
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Abstract
The spectrum of ischemic heart diseases, encompassing acute myocardial infarction to heart failure, represents the leading cause of death worldwide. Although extensive progress in cardiovascular diagnoses and therapy has been made, the prevalence of the disease continues to increase. Cardiac regeneration has a promising perspective for the therapy of heart failure. Recently, extracellular matrix (ECM) has been shown to play an important role in cardiac regeneration and repair after cardiac injury. There is also evidence that the ECM could be directly used as a drug to promote cardiomyocyte proliferation and cardiac regeneration. Increasing evidence supports that applying ECM biomaterials to maintain heart function recovery is an important approach to apply the concept of cardiac regenerative medicine to clinical practice in the future. Here, we will introduce the essential role of cardiac ECM in cardiac regeneration and summarize the approaches of delivering ECM biomaterials to promote cardiac repair in this review.
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Affiliation(s)
- Haotong Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Minghui Bao
- Department of Cardiology, Peking University First Hospital, Beijing, China
| | - Yu Nie
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China.
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21
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Tissue engineered heart repair from preclinical models to first-in-patient studies. CURRENT OPINION IN PHYSIOLOGY 2020. [DOI: 10.1016/j.cophys.2020.02.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Bar A, Cohen S. Inducing Endogenous Cardiac Regeneration: Can Biomaterials Connect the Dots? Front Bioeng Biotechnol 2020; 8:126. [PMID: 32175315 PMCID: PMC7056668 DOI: 10.3389/fbioe.2020.00126] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 02/10/2020] [Indexed: 12/19/2022] Open
Abstract
Heart failure (HF) after myocardial infarction (MI) due to blockage of coronary arteries is a major public health issue. MI results in massive loss of cardiac muscle due to ischemia. Unfortunately, the adult mammalian myocardium presents a low regenerative potential, leading to two main responses to injury: fibrotic scar formation and hypertrophic remodeling. To date, complete heart transplantation remains the only clinical option to restore heart function. In the last two decades, tissue engineering has emerged as a promising approach to promote cardiac regeneration. Tissue engineering aims to target processes associated with MI, including cardiomyogenesis, modulation of extracellular matrix (ECM) remodeling, and fibrosis. Tissue engineering dogmas suggest the utilization and combination of two key components: bioactive molecules and biomaterials. This chapter will present current therapeutic applications of biomaterials in cardiac regeneration and the challenges still faced ahead. The following biomaterial-based approaches will be discussed: Nano-carriers for cardiac regeneration-inducing biomolecules; corresponding matrices for their controlled release; injectable hydrogels for cell delivery and cardiac patches. The concept of combining cardiac patches with controlled release matrices will be introduced, presenting a promising strategy to promote endogenous cardiac regeneration.
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Affiliation(s)
- Assaf Bar
- The Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Faculty of Engineering Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Smadar Cohen
- The Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Faculty of Engineering Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
- Regenerative Medicine and Stem Cell Research Center, Ben-Gurion University of the Negev, Beersheba, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beersheba, Israel
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23
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Song SY, Kim H, Yoo J, Kwon SP, Park BW, Kim JJ, Ban K, Char K, Park HJ, Kim BS. Prevascularized, multiple-layered cell sheets of direct cardiac reprogrammed cells for cardiac repair. Biomater Sci 2020; 8:4508-4520. [DOI: 10.1039/d0bm00701c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We developed cardiac-reprogrammed cell sheets via cardiac-mimetic cell culture system with biodegradable PLGA membrane. The prevascularized, multiple-layered cell sheets prevented heart failure after myocardial infarction.
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Affiliation(s)
- Seuk Young Song
- School of Chemical and Biological Engineering
- Seoul National University
- Seoul
- Republic of Korea
| | - Hyeok Kim
- Department of Medical Life Science
- College of Medicine
- The Catholic University of Korea
- Seoul
- Republic of Korea
| | - Jin Yoo
- School of Chemical and Biological Engineering
- Seoul National University
- Seoul
- Republic of Korea
| | - Sung Pil Kwon
- School of Chemical and Biological Engineering
- Seoul National University
- Seoul
- Republic of Korea
| | - Bong Woo Park
- Department of Medical Life Science
- College of Medicine
- The Catholic University of Korea
- Seoul
- Republic of Korea
| | - Jin-ju Kim
- Department of Medical Life Science
- College of Medicine
- The Catholic University of Korea
- Seoul
- Republic of Korea
| | - Kiwon Ban
- Department of Biomedical Sciences
- City University of Hong Kong
- Kowloon Tong
- Hong Kong
| | - Kookheon Char
- School of Chemical and Biological Engineering
- Seoul National University
- Seoul
- Republic of Korea
| | - Hun-Jun Park
- Department of Medical Life Science
- College of Medicine
- The Catholic University of Korea
- Seoul
- Republic of Korea
| | - Byung-Soo Kim
- School of Chemical and Biological Engineering
- Seoul National University
- Seoul
- Republic of Korea
- Institute of Chemical Processes
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24
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Khorramirouz R, Kameli SM, Fendereski K, Daryabari SS, Kajbafzadeh AM. Evaluating the efficacy of tissue-engineered human amniotic membrane in the treatment of myocardial infarction. Regen Med 2019; 14:113-126. [PMID: 30741604 DOI: 10.2217/rme-2018-0024] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM The aim of this study was to evaluate the efficacy of tissue-engineered amniotic membrane (AM) in the treatment of myocardial infarction lesions. MATERIALS & METHODS 20 rats were subjected to coronary arterial ligation in order to induce myocardial infarction injury. Decellularized human AMs were seeded with 2 × 105 adipose-derived mesenchymal stem cells and were implanted in the infarcted hearts. RESULTS & CONCLUSION Histological and immunohistochemical evaluations indicated the regeneration of cardiomyocytes and reduction of inflammation and fibrosis in the patch-implanted group compared with a control group, 14 days after the surgery. Terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate biotin nick-end labeling assay was suggestive for apoptosis reduction in the patch-implanted specimens. This study suggested that human AM can be developed into a novel treatment for treating postmyocardial infarction.
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Affiliation(s)
- Reza Khorramirouz
- Pediatric Urology & Regenerative Medicine Research Center, Section of Tissue Engineering & Stem Cells Therapy, Pediatric Center of Excellence, Tehran University of Medical Sciences, Children's Hospital Medical Center, Tehran 1419433151, Iran
| | - Seyedeh M Kameli
- Pediatric Urology & Regenerative Medicine Research Center, Section of Tissue Engineering & Stem Cells Therapy, Pediatric Center of Excellence, Tehran University of Medical Sciences, Children's Hospital Medical Center, Tehran 1419433151, Iran
| | - Kiarad Fendereski
- Pediatric Urology & Regenerative Medicine Research Center, Section of Tissue Engineering & Stem Cells Therapy, Pediatric Center of Excellence, Tehran University of Medical Sciences, Children's Hospital Medical Center, Tehran 1419433151, Iran
| | - Seyedeh S Daryabari
- Pediatric Urology & Regenerative Medicine Research Center, Section of Tissue Engineering & Stem Cells Therapy, Pediatric Center of Excellence, Tehran University of Medical Sciences, Children's Hospital Medical Center, Tehran 1419433151, Iran
| | - Abdol-Mohammad Kajbafzadeh
- Pediatric Urology & Regenerative Medicine Research Center, Section of Tissue Engineering & Stem Cells Therapy, Pediatric Center of Excellence, Tehran University of Medical Sciences, Children's Hospital Medical Center, Tehran 1419433151, Iran
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25
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Wang X, Wang L, Wu Q, Bao F, Yang H, Qiu X, Chang J. Chitosan/Calcium Silicate Cardiac Patch Stimulates Cardiomyocyte Activity and Myocardial Performance after Infarction by Synergistic Effect of Bioactive Ions and Aligned Nanostructure. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1449-1468. [PMID: 30543278 DOI: 10.1021/acsami.8b17754] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Cardiac tissue engineering (CTE) remains a great challenge to construct a cell-inductive scaffold that has positive effects on cardiac cell behaviors and cardiac tissue repair. In this study, we for the first time demonstrated that Si ions evidently stimulated the expression of cardiac-specific genes and proliferation of neonatal rat cardiomyocytes (NRCMs) at concentration ranges of 0.13-10.78 ppm. Accordingly, the optimized concentrations of calcium silicate (CS) were incorporated into the controllable aligned chitosan electrospun nanofibers, constructing the composite cardiac patch scaffolds. These scaffolds showed synergistic effect of bioactive chemical and structural signals on both cardiomyocytes and endothelial cells with aligned cell morphology and enhanced viability and function characterized by upregulated expressions of cardiac and angiogenic specific markers, improved myofilament structure, and better Ca2+ transients of NRCMs as compared to the scaffolds free of CS component or with disordered structures. The in vivo studies further demonstrated that the NRCM-seeded aligned CS/chitosan cardiac patch evidently improved cardiac function via limiting the scar area and promoting angiogenesis in postmyocardial infarction rats. Conclusively, our study highlights the potential application of bioactive ions and nanostructured biomaterials in CTE, and the CS/chitosan composite cardiac patch may be a promising scaffold for repair of infarcted myocardium.
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Affiliation(s)
- Xiaotong Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences (CAS) , Shanghai 200050 , P. R. China
- University of Chinese Academy of Sciences (CAS) , Beijing 100049 , P. R. China
| | - Leyu Wang
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Science, School of Biomedical Engineering , Southern Medical University , Guangzhou 510515 , Guangdong , P. R. China
| | - Qiang Wu
- CAS Key Laboratory of Tissue Microenvironment & Tumor, Laboratory of Molecular Cardiology, Shanghai Institute of Nutrition and Health , Shanghai Institutes for Biological Sciences, CAS , Shanghai 200031 , P. R. China
- University of Chinese Academy of Sciences (CAS) , Beijing 100049 , P. R. China
- Institute for Stem Cell and Regeneration , Chinese Academy of Sciences (CAS) , Beijing 100101 , P. R. China
| | - Feng Bao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences (CAS) , Shanghai 200050 , P. R. China
- University of Chinese Academy of Sciences (CAS) , Beijing 100049 , P. R. China
| | - Huangtian Yang
- CAS Key Laboratory of Tissue Microenvironment & Tumor, Laboratory of Molecular Cardiology, Shanghai Institute of Nutrition and Health , Shanghai Institutes for Biological Sciences, CAS , Shanghai 200031 , P. R. China
- University of Chinese Academy of Sciences (CAS) , Beijing 100049 , P. R. China
- Institute for Stem Cell and Regeneration , Chinese Academy of Sciences (CAS) , Beijing 100101 , P. R. China
| | - Xiaozhong Qiu
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Science, School of Biomedical Engineering , Southern Medical University , Guangzhou 510515 , Guangdong , P. R. China
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences (CAS) , Shanghai 200050 , P. R. China
- University of Chinese Academy of Sciences (CAS) , Beijing 100049 , P. R. China
- Institute for Stem Cell and Regeneration , Chinese Academy of Sciences (CAS) , Beijing 100101 , P. R. China
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26
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Sharma D, Ferguson M, Kamp TJ, Zhao F. Constructing Biomimetic Cardiac Tissues: A Review of Scaffold Materials for Engineering Cardiac Patches. EMERGENT MATERIALS 2019; 2:181-191. [PMID: 33225220 PMCID: PMC7678685 DOI: 10.1007/s42247-019-00046-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 07/13/2019] [Indexed: 05/18/2023]
Abstract
Engineered cardiac patches (ECPs) hold great promise to repair ischemia-induced damages to the myocardium. Recent studies have provided robust technological advances in obtaining pure cardiac cell populations as well as various novel scaffold materials to generate engineered cardiac tissues that can significantly improve electrical and contractile functions of damaged myocardium. Given the significance in understanding the cellular and extracellular structural as well as compositional details of native human heart wall, in order to fabricate most suitable scaffold material for cardiac patches, herein, we have reviewed the structure of the human pericardium and heart wall as well as the compositional details of cardiac extracellular matrix (ECM). Moreover, several strategies to obtain cardiac-specific scaffold materials have been reviewed, including natural, synthetic and hybrid hydrogels, electrospun fibers, decellularized native tissues or whole organs, and scaffolds derived from engineered cell sheets. This review provides a comprehensive analysis of different scaffold materials for engineering cardiac tissues.
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Affiliation(s)
- Dhavan Sharma
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931, USA
| | - Morgan Ferguson
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931, USA
| | - Timothy J Kamp
- Stem Cell and Regenerative Medicine Center, University of Wisconsin, Madison, WI 53705, USA
| | - Feng Zhao
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931, USA
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27
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Kaiser NJ, Kant RJ, Minor AJ, Coulombe KLK. Optimizing Blended Collagen-Fibrin Hydrogels for Cardiac Tissue Engineering with Human iPSC-derived Cardiomyocytes. ACS Biomater Sci Eng 2018; 5:887-899. [PMID: 30775432 PMCID: PMC6372981 DOI: 10.1021/acsbiomaterials.8b01112] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 12/10/2018] [Indexed: 01/08/2023]
Abstract
![]()
Natural
polymer hydrogels are used ubiquitously as scaffold materials
for cardiac tissue engineering as well as for soft tissue engineering
more broadly because of FDA approval, minimal immunogenicity, and
well-defined physiological clearance pathways. However, the relationships
between natural polymer hydrogels and resident cell populations in
directing the development of engineered tissues are poorly defined.
This interaction is of particular concern for tissues prepared
with iPSC-derived cell populations, in which population purity and
batch-to-batch variability become additional critical factors to consider.
Herein, the design space for a blended fibrin and collagen scaffold
is characterized for applications in creating engineered myocardium
with human iPSC-derived cardiomyocytes. Stiffness values of the acellular
hydrogel formulations approach those of native myocardium in compression,
but deviate significantly in tension when compared to rat myocardium
in both transverse and longitudinal fiber orientations. A response
surface methodology approach to understanding the relationship between
collagen concentration, fibrin concentration, seeding density, and
cardiac purity found a statistically significant predictive model
across three repeated studies that confirms that all of these factors
contribute to tissue compaction. In these constructs, increased fibrin
concentration and seeding density were each associated with increased
compaction, while increased collagen concentration was associated
with decreased compaction. Both the lowest (24.4% cTnT+) and highest (60.2% cTnT+) cardiomyocyte purities evaluated
were associated with decreased compaction, whereas the greatest compaction
was predicted to occur in constructs prepared with a 40–50%
cTnT+ population. Constructs prepared with purified cardiomyocytes
(≥75.5% cTnT+) compacted and formed syncytia well,
although increased fibrin concentration in these groups was associated
with decreased compaction, a reversal of the trend observed in unpurified
cardiomyocytes. This study demonstrates an analytical approach to
understanding cell–scaffold interactions in engineered tissues
and provides a foundation for the development of more sophisticated
and customized scaffold platforms for human cardiac tissue engineering.
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Affiliation(s)
- Nicholas J Kaiser
- Center for Biomedical Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Rajeev J Kant
- Center for Biomedical Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Alicia J Minor
- Center for Biomedical Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Kareen L K Coulombe
- Center for Biomedical Engineering, Brown University, Providence, Rhode Island 02912, United States
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28
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Tsui JH, Ostrovsky-Snider NA, Yama DMP, Donohue JD, Choi JS, Chavanachat R, Larson JD, Murphy AR, Kim DH. Conductive Silk-Polypyrrole Composite Scaffolds with Bioinspired Nanotopographic Cues for Cardiac Tissue Engineering. J Mater Chem B 2018; 6:7185-7196. [PMID: 31448124 PMCID: PMC6708520 DOI: 10.1039/c8tb01116h] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We report on the development of bioinspired cardiac scaffolds made from electroconductive acid-modified silk fibroin-poly(pyrrole) (AMSF+PPy) substrates patterned with nanoscale ridges and grooves reminiscent of native myocardial extracellular matrix (ECM) topography to enhance the structural and functional properties of cultured human pluripotent stem cells (hPSC)-derived cardiomyocytes. Nanopattern fidelity was maintained throughout the fabrication and functionalization processes, and no loss in conductive behavior occurred due to the presence of the nanotopographical features. AMSF+PPy substrates were biocompatible and stable, maintaining high cell viability over a 21-day culture period while displaying no signs of PPy delamination. The presence of anisotropic topographical cues led to increased cellular organization and sarcomere development, and electroconductive cues promoted a significant improvement in the expression and polarization of connexin 43 (Cx43), a critical regulator of cell-cell electrical coupling. The combination of biomimetic topography and electroconductivity also increased the expression of genes that encode key proteins involved in regulating the contractile and electrophysiological function of mature human cardiac tissue.
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Affiliation(s)
- Jonathan H. Tsui
- Department of Bioengineering, University of Washington, Seattle, WA, USA
| | | | - David M. P. Yama
- Department of Bioengineering, University of Washington, Seattle, WA, USA
| | - Jordan D. Donohue
- Department of Chemistry, Western Washington University, Bellingham, WA, USA
| | - Jong Seob Choi
- Department of Bioengineering, University of Washington, Seattle, WA, USA
| | | | - Jesse D. Larson
- Department of Chemistry, Western Washington University, Bellingham, WA, USA
| | - Amanda R. Murphy
- Department of Chemistry, Western Washington University, Bellingham, WA, USA
| | - Deok-Ho Kim
- Department of Bioengineering, University of Washington, Seattle, WA, USA
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, USA
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29
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Abstract
Some of the most significant leaps in the history of modern civilization-the development of article in China, the steam engine, which led to the European industrial revolution, and the era of computers-have occurred when science converged with engineering. Recently, the convergence of human pluripotent stem cell technology with biomaterials and bioengineering have launched a new medical innovation: functional human engineered tissue, which promises to revolutionize the treatment of failing organs including most critically, the heart. This compendium covers recent, state-of-the-art developments in the fields of cardiovascular tissue engineering, as well as the needs and challenges associated with the clinical use of these technologies. We have not attempted to provide an exhaustive review in stem cell biology and cardiac cell therapy; many other important and influential reports are certainly merit but already been discussed in several recent reviews. Our scope is limited to the engineered tissues that have been fabricated to repair or replace components of the heart (eg, valves, vessels, contractile tissue) that have been functionally compromised by diseases or developmental abnormalities. In particular, we have focused on using an engineered myocardial tissue to mitigate deficiencies in contractile function.
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Affiliation(s)
- Jianyi Zhang
- From the Department of Biomedical Engineering, School of Medicine and School of Engineering, The University of Alabama at Birmingham (J.Z., W.Z.)
| | - Wuqiang Zhu
- From the Department of Biomedical Engineering, School of Medicine and School of Engineering, The University of Alabama at Birmingham (J.Z., W.Z.)
| | - Milica Radisic
- Department of Chemical Engineering and Applied Chemistry, Institute of Biomaterials and Biomedical Engineering, University of Toronto, Canada (M.R.)
| | - Gordana Vunjak-Novakovic
- Department of Biomedical Engineering and Department of Medicine, Columbia University, New York, NY (G.V.-N.)
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30
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Geng X, Liu B, Liu J, Liu D, Lu Y, Sun X, Liang K, Kong B. Interfacial tissue engineering of heart regenerative medicine based on soft cell-porous scaffolds. J Thorac Dis 2018; 10:S2333-S2345. [PMID: 30123574 DOI: 10.21037/jtd.2018.01.117] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Myocardial infarction (MI), occurs when the coronary artery is occluded resulting in the hypoxia of areas in heart tissue, is increasing in recent years because of the population ageing and lifestyle changes. Currently, there is no ideal therapeutic scheme because of the limitation of MI therapeutic strategies due to the lack of regenerative ability of the heart cells in adult humans. Recent advances in tissue engineering and regenerative medicine brings hope to the MI therapy and current studies are focusing on restoring the function and structure of damaged tissue by delivering exogenous cells or stimulating endogenous heart cells. However, attempts to directly inject stem cells or cardiomyocytes to the infract zone often lead to rapid cell death and abundant cell loss. To address this challenge, various soft repair cells and porous scaffold materials have been integrated to improve cell retention and engraftment and preventing left ventricle (LV) dilatation. In this article, we will review the current method for heart regeneration based on soft cell-porous scaffold interfacial tissue engineering including common stem cell types, biomaterials, and cardiac patch and will discuss potential future directions in this area.
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Affiliation(s)
- Xiwen Geng
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200433, China.,National Supercomputer Research Center of Advanced Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Bing Liu
- National Supercomputer Research Center of Advanced Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China.,Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250014, China
| | - Jiaqing Liu
- National Supercomputer Research Center of Advanced Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Dong Liu
- National Supercomputer Research Center of Advanced Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Yupeng Lu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250014, China.,School of Materials Science and Engineering, Shandong University, Jinan 250014, China
| | - Xiaotian Sun
- Department of Cardiothoracic Surgery, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Kang Liang
- School of Chemical Engineering, and Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Biao Kong
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200433, China
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31
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Munarin F, Kaiser NJ, Kim TY, Choi BR, Coulombe KLK. Laser-Etched Designs for Molding Hydrogel-Based Engineered Tissues. Tissue Eng Part C Methods 2018; 23:311-321. [PMID: 28457187 DOI: 10.1089/ten.tec.2017.0068] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Rapid prototyping and fabrication of elastomeric molds for sterile culture of engineered tissues allow for the development of tissue geometries that can be tailored to different in vitro applications and customized as implantable scaffolds for regenerative medicine. Commercially available molds offer minimal capabilities for adaptation to unique conditions or applications versus those for which they are specifically designed. Here we describe a replica molding method for the design and fabrication of poly(dimethylsiloxane) (PDMS) molds from laser-etched acrylic negative masters with ∼0.2 mm resolution. Examples of the variety of mold shapes, sizes, and patterns obtained from laser-etched designs are provided. We use the patterned PDMS molds for producing and culturing engineered cardiac tissues with cardiomyocytes derived from human-induced pluripotent stem cells. We demonstrate that tight control over tissue morphology and anisotropy results in modulation of cell alignment and tissue-level conduction properties, including the appearance and elimination of reentrant arrhythmias, or circular electrical activation patterns. Techniques for handling engineered cardiac tissues during implantation in vivo in a rat model of myocardial infarction have been developed and are presented herein to facilitate development and adoption of surgical techniques for use with hydrogel-based engineered tissues. In summary, the method presented herein for engineered tissue mold generation is straightforward and low cost, enabling rapid design iteration and adaptation to a variety of applications in tissue engineering. Furthermore, the burden of equipment and expertise is low, allowing the technique to be accessible to all.
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Affiliation(s)
- Fabiola Munarin
- 1 School of Engineering, Brown University , Providence, Rhode Island
| | - Nicholas J Kaiser
- 1 School of Engineering, Brown University , Providence, Rhode Island
| | - Tae Yun Kim
- 2 Department of Medicine, Rhode Island Hospital and Alpert Medical School of Brown University , Providence, Rhode Island
| | - Bum-Rak Choi
- 2 Department of Medicine, Rhode Island Hospital and Alpert Medical School of Brown University , Providence, Rhode Island
| | - Kareen L K Coulombe
- 1 School of Engineering, Brown University , Providence, Rhode Island.,3 Department of Molecular Pharmacology, Physiology, and Biotechnology, Brown University , Providence, Rhode Island
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32
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Jackman CP, Ganapathi AM, Asfour H, Qian Y, Allen BW, Li Y, Bursac N. Engineered cardiac tissue patch maintains structural and electrical properties after epicardial implantation. Biomaterials 2018; 159:48-58. [PMID: 29309993 DOI: 10.1016/j.biomaterials.2018.01.002] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 12/17/2017] [Accepted: 01/01/2018] [Indexed: 12/22/2022]
Abstract
Functional cardiac tissue engineering holds promise as a candidate therapy for myocardial infarction and heart failure. Generation of "strong-contracting and fast-conducting" cardiac tissue patches capable of electromechanical coupling with host myocardium could allow efficient improvement of heart function without increased arrhythmogenic risks. Towards that goal, we engineered highly functional 1 cm × 1 cm cardiac tissue patches made of neonatal rat ventricular cells which after 2 weeks of culture exhibited force of contraction of 18.0 ± 1.4 mN, conduction velocity (CV) of 32.3 ± 1.8 cm/s, and sustained chronic activation when paced at rates as high as 8.7 ± 0.8 Hz. Patches transduced with genetically-encoded calcium indicator (GCaMP6) were implanted onto adult rat ventricles and after 4-6 weeks assessed for action potential conduction and electrical integration by two-camera optical mapping of GCaMP6-reported Ca2+ transients in the patch and RH237-reported action potentials in the recipient heart. Of the 13 implanted patches, 11 (85%) engrafted, maintained structural integrity, and conducted action potentials with average CVs and Ca2+ transient durations comparable to those before implantation. Despite preserved graft electrical properties, no anterograde or retrograde conduction could be induced between the patch and host cardiomyocytes, indicating lack of electrical integration. Electrical properties of the underlying myocardium were not changed by the engrafted patch. From immunostaining analyses, implanted patches were highly vascularized and expressed abundant electromechanical junctions, but remained separated from the epicardium by a non-myocyte layer. In summary, our studies demonstrate generation of highly functional cardiac tissue patches that can robustly engraft on the epicardial surface, vascularize, and maintain electrical function, but do not couple with host tissue. The lack of graft-host electrical integration is therefore a critical obstacle to development of efficient tissue engineering therapies for heart repair.
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Affiliation(s)
| | - Asvin M Ganapathi
- Duke University Medical Center, Department of General Surgery, Durham, NC, USA
| | - Huda Asfour
- Duke University, Department of Biomedical Engineering, Durham, NC, USA
| | - Ying Qian
- Duke University, Department of Biomedical Engineering, Durham, NC, USA
| | - Brian W Allen
- Duke University, Department of Biomedical Engineering, Durham, NC, USA
| | - Yanzhen Li
- Duke University, Department of Biomedical Engineering, Durham, NC, USA
| | - Nenad Bursac
- Duke University, Department of Biomedical Engineering, Durham, NC, USA.
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33
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Schaefer JA, Guzman PA, Riemenschneider SB, Kamp TJ, Tranquillo RT. A cardiac patch from aligned microvessel and cardiomyocyte patches. J Tissue Eng Regen Med 2017; 12:546-556. [PMID: 28875579 DOI: 10.1002/term.2568] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Revised: 08/28/2017] [Accepted: 09/01/2017] [Indexed: 12/18/2022]
Abstract
Cardiac tissue engineering aims to produce replacement tissue patches in the lab to replace or treat infarcted myocardium. However, current patches lack preformed microvascularization and are therefore limited in thickness and force production. In this study, we sought to assess whether a bilayer patch composed of a layer made from human induced pluripotent stem cell-derived cardiomyocytes and a microvessel layer composed of self-assembled human blood outgrowth endothelial cells and pericytes was capable of engrafting on the epicardial surface of a nude rat infarct model and becoming perfused by the host 4 weeks after acute implantation. The bilayer configuration was found to increase the twitch force production, improve human induced pluripotent stem cell-derived cardiomyocyte survival and maturation, and increase patent microvessel lumens compared with time-matched single layer controls after 2 weeks of in vitro culture. Upon implantation, the patch microvessels sprouted into the cardiomyocyte layer of the patch and inosculated with the host vasculature as evidenced by species-specific perfusion labels and erythrocyte staining. Our results demonstrate that the added microvessel layer of a bilayer patch substantially improves in vitro functionality and that the bilayer patch is capable of engraftment with rapid microvessel inosculation on injured myocardium. The bilayer format will allow for scaling up in size through the addition of layers to obtain thicker tissues generating greater force in the future.
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Affiliation(s)
- Jeremy A Schaefer
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, USA
| | - Pilar A Guzman
- Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN, USA
| | - Sonja B Riemenschneider
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, USA
| | - Timothy J Kamp
- Department of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - Robert T Tranquillo
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, USA.,Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, USA
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34
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Fong AH, Romero-López M, Heylman CM, Keating M, Tran D, Sobrino A, Tran AQ, Pham HH, Fimbres C, Gershon PD, Botvinick EL, George SC, Hughes CCW. Three-Dimensional Adult Cardiac Extracellular Matrix Promotes Maturation of Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes. Tissue Eng Part A 2017; 22:1016-25. [PMID: 27392582 DOI: 10.1089/ten.tea.2016.0027] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Pluripotent stem cell-derived cardiomyocytes (CMs) have great potential in the development of new therapies for cardiovascular disease. In particular, human induced pluripotent stem cells (iPSCs) may prove especially advantageous due to their pluripotency, their self-renewal potential, and their ability to create patient-specific cell lines. Unfortunately, pluripotent stem cell-derived CMs are immature, with characteristics more closely resembling fetal CMs than adult CMs, and this immaturity has limited their use in drug screening and cell-based therapies. Extracellular matrix (ECM) influences cellular behavior and maturation, as does the geometry of the environment-two-dimensional (2D) versus three-dimensional (3D). We therefore tested the hypothesis that native cardiac ECM and 3D cultures might enhance the maturation of iPSC-derived CMs in vitro. We demonstrate that maturation of iPSC-derived CMs was enhanced when cells were seeded into a 3D cardiac ECM scaffold, compared with 2D culture. 3D cardiac ECM promoted increased expression of calcium-handling genes, Junctin, CaV1.2, NCX1, HCN4, SERCA2a, Triadin, and CASQ2. Consistent with this, we find that iPSC-derived CMs in 3D adult cardiac ECM show increased calcium signaling (amplitude) and kinetics (maximum upstroke and downstroke) compared with cells in 2D. Cells in 3D culture were also more responsive to caffeine, likely reflecting an increased availability of calcium in the sarcoplasmic reticulum. Taken together, these studies provide novel strategies for maturing iPSC-derived CMs that may have applications in drug screening and transplantation therapies to treat heart disease.
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Affiliation(s)
- Ashley H Fong
- 1 Department of Molecular Biology and Biochemistry, School of Biological Sciences , UC Irvine, Irvine, California
| | - Mónica Romero-López
- 2 Department of Biomedical Engineering, The Henry Samueli School of Engineering , UC Irvine, Irvine, California
| | - Christopher M Heylman
- 2 Department of Biomedical Engineering, The Henry Samueli School of Engineering , UC Irvine, Irvine, California
| | - Mark Keating
- 2 Department of Biomedical Engineering, The Henry Samueli School of Engineering , UC Irvine, Irvine, California
| | - David Tran
- 3 Department of Chemical Engineering and Material Science, The Henry Samueli School of Engineering , UC Irvine, Irvine, California
| | - Agua Sobrino
- 1 Department of Molecular Biology and Biochemistry, School of Biological Sciences , UC Irvine, Irvine, California
| | - Anh Q Tran
- 1 Department of Molecular Biology and Biochemistry, School of Biological Sciences , UC Irvine, Irvine, California
| | - Hiep H Pham
- 1 Department of Molecular Biology and Biochemistry, School of Biological Sciences , UC Irvine, Irvine, California
| | - Cristhian Fimbres
- 1 Department of Molecular Biology and Biochemistry, School of Biological Sciences , UC Irvine, Irvine, California
| | - Paul D Gershon
- 1 Department of Molecular Biology and Biochemistry, School of Biological Sciences , UC Irvine, Irvine, California
| | - Elliot L Botvinick
- 2 Department of Biomedical Engineering, The Henry Samueli School of Engineering , UC Irvine, Irvine, California.,4 The Edwards Lifesciences Center for Advanced Cardiovascular Technology , UC Irvine, Irvine, California
| | - Steven C George
- 5 Department of Biomedical Engineering, School of Engineering and Applied Science, Washington University in St. Louis , St. Louis, Missouri
| | - Christopher C W Hughes
- 1 Department of Molecular Biology and Biochemistry, School of Biological Sciences , UC Irvine, Irvine, California.,2 Department of Biomedical Engineering, The Henry Samueli School of Engineering , UC Irvine, Irvine, California.,4 The Edwards Lifesciences Center for Advanced Cardiovascular Technology , UC Irvine, Irvine, California
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35
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Yanamandala M, Zhu W, Garry DJ, Kamp TJ, Hare JM, Jun HW, Yoon YS, Bursac N, Prabhu SD, Dorn GW, Bolli R, Kitsis RN, Zhang J. Overcoming the Roadblocks to Cardiac Cell Therapy Using Tissue Engineering. J Am Coll Cardiol 2017; 70:766-775. [PMID: 28774384 PMCID: PMC5553556 DOI: 10.1016/j.jacc.2017.06.012] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 06/05/2017] [Accepted: 06/05/2017] [Indexed: 12/20/2022]
Abstract
Transplantations of various stem cells or their progeny have repeatedly improved cardiac performance in animal models of myocardial injury; however, the benefits observed in clinical trials have been generally less consistent. Some of the recognized challenges are poor engraftment of implanted cells and, in the case of human cardiomyocytes, functional immaturity and lack of electrical integration, leading to limited contribution to the heart's contractile activity and increased arrhythmogenic risks. Advances in tissue and genetic engineering techniques are expected to improve the survival and integration of transplanted cells, and to support structural, functional, and bioenergetic recovery of the recipient hearts. Specifically, application of a prefabricated cardiac tissue patch to prevent dilation and to improve pumping efficiency of the infarcted heart offers a promising strategy for making stem cell therapy a clinical reality.
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Affiliation(s)
- Mounica Yanamandala
- Department of Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, New York
| | - Wuqiang Zhu
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, Alabama
| | - Daniel J Garry
- Lillehei Heart Institute, University of Minnesota, Minneapolis, Minnesota
| | - Timothy J Kamp
- Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin
| | - Joshua M Hare
- Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida
| | - Ho-Wook Jun
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, Alabama
| | - Young-Sup Yoon
- Department of Medicine, Emory University, and Severance Biomedical Science Institute, Yonsei University College of Medicine, Atlanta, Georgia
| | - Nenad Bursac
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
| | - Sumanth D Prabhu
- Department of Medicine, Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, Alabama
| | - Gerald W Dorn
- Center for Pharmacogenomics, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Roberto Bolli
- Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky
| | - Richard N Kitsis
- Department of Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, New York
| | - Jianyi Zhang
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, Alabama.
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36
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Qin X, Riegler J, Tiburcy M, Zhao X, Chour T, Ndoye B, Nguyen M, Adams J, Ameen M, Denney TS, Yang PC, Nguyen P, Zimmermann WH, Wu JC. Magnetic Resonance Imaging of Cardiac Strain Pattern Following Transplantation of Human Tissue Engineered Heart Muscles. Circ Cardiovasc Imaging 2017; 9:CIRCIMAGING.116.004731. [PMID: 27903535 DOI: 10.1161/circimaging.116.004731] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 09/16/2016] [Indexed: 12/18/2022]
Abstract
BACKGROUND The use of tissue engineering approaches in combination with exogenously produced cardiomyocytes offers the potential to restore contractile function after myocardial injury. However, current techniques assessing changes in global cardiac performance after such treatments are plagued by relatively low detection ability. Since the treatment is locally performed, this detection could be improved by myocardial strain imaging that measures regional contractility. METHODS AND RESULTS Tissue engineered heart muscles (EHMs) were generated by casting human embryonic stem cell-derived cardiomyocytes with collagen in preformed molds. EHMs were transplanted (n=12) to cover infarct and border zones of recipient rat hearts 1 month after ischemia reperfusion injury. A control group (n=10) received only sham placement of sutures without EHMs. To assess the efficacy of EHMs, magnetic resonance imaging and ultrasound-based strain imaging were performed before and 4 weeks after transplantation. In addition to strain imaging, global cardiac performance was estimated from cardiac magnetic resonance imaging. Although no significant differences were found for global changes in left ventricular ejection fraction (control -9.6±1.3% versus EHM -6.2±1.9%; P=0.17), regional myocardial strain from tagged magnetic resonance imaging was able to detect preserved systolic function in EHM-treated animals compared with control (control 4.4±1.0% versus EHM 1.0±0.6%; P=0.04). However, ultrasound-based strain failed to detect any significant change (control 2.1±3.0% versus EHM 6.3±2.9%; P=0.46). CONCLUSIONS This study highlights the feasibility of using cardiac strain from tagged magnetic resonance imaging to assess functional changes in rat models following localized regenerative therapies, which may not be detected by conventional measures of global systolic performance.
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Affiliation(s)
- Xulei Qin
- From the Stanford Cardiovascular Institute and Department of Medicine, Division of Cardiology, CA (X.Q., J.R., X.Z., T.C., B.N., M.N., J.A., M.A., P.C.Y., P.N., J.C.W.); Auburn University MRI Research Center, Department of Electrical and Computer Engineering, AL (T.S.D.); Institute of Pharmacology, Heart Research Center, University Medical Center, Georg-August-University and German Center for Cardiovascular Research, Göttingen, Germany (M.T., W.H.Z.)
| | - Johannes Riegler
- From the Stanford Cardiovascular Institute and Department of Medicine, Division of Cardiology, CA (X.Q., J.R., X.Z., T.C., B.N., M.N., J.A., M.A., P.C.Y., P.N., J.C.W.); Auburn University MRI Research Center, Department of Electrical and Computer Engineering, AL (T.S.D.); Institute of Pharmacology, Heart Research Center, University Medical Center, Georg-August-University and German Center for Cardiovascular Research, Göttingen, Germany (M.T., W.H.Z.)
| | - Malte Tiburcy
- From the Stanford Cardiovascular Institute and Department of Medicine, Division of Cardiology, CA (X.Q., J.R., X.Z., T.C., B.N., M.N., J.A., M.A., P.C.Y., P.N., J.C.W.); Auburn University MRI Research Center, Department of Electrical and Computer Engineering, AL (T.S.D.); Institute of Pharmacology, Heart Research Center, University Medical Center, Georg-August-University and German Center for Cardiovascular Research, Göttingen, Germany (M.T., W.H.Z.)
| | - Xin Zhao
- From the Stanford Cardiovascular Institute and Department of Medicine, Division of Cardiology, CA (X.Q., J.R., X.Z., T.C., B.N., M.N., J.A., M.A., P.C.Y., P.N., J.C.W.); Auburn University MRI Research Center, Department of Electrical and Computer Engineering, AL (T.S.D.); Institute of Pharmacology, Heart Research Center, University Medical Center, Georg-August-University and German Center for Cardiovascular Research, Göttingen, Germany (M.T., W.H.Z.)
| | - Tony Chour
- From the Stanford Cardiovascular Institute and Department of Medicine, Division of Cardiology, CA (X.Q., J.R., X.Z., T.C., B.N., M.N., J.A., M.A., P.C.Y., P.N., J.C.W.); Auburn University MRI Research Center, Department of Electrical and Computer Engineering, AL (T.S.D.); Institute of Pharmacology, Heart Research Center, University Medical Center, Georg-August-University and German Center for Cardiovascular Research, Göttingen, Germany (M.T., W.H.Z.)
| | - Babacar Ndoye
- From the Stanford Cardiovascular Institute and Department of Medicine, Division of Cardiology, CA (X.Q., J.R., X.Z., T.C., B.N., M.N., J.A., M.A., P.C.Y., P.N., J.C.W.); Auburn University MRI Research Center, Department of Electrical and Computer Engineering, AL (T.S.D.); Institute of Pharmacology, Heart Research Center, University Medical Center, Georg-August-University and German Center for Cardiovascular Research, Göttingen, Germany (M.T., W.H.Z.)
| | - Michael Nguyen
- From the Stanford Cardiovascular Institute and Department of Medicine, Division of Cardiology, CA (X.Q., J.R., X.Z., T.C., B.N., M.N., J.A., M.A., P.C.Y., P.N., J.C.W.); Auburn University MRI Research Center, Department of Electrical and Computer Engineering, AL (T.S.D.); Institute of Pharmacology, Heart Research Center, University Medical Center, Georg-August-University and German Center for Cardiovascular Research, Göttingen, Germany (M.T., W.H.Z.)
| | - Jackson Adams
- From the Stanford Cardiovascular Institute and Department of Medicine, Division of Cardiology, CA (X.Q., J.R., X.Z., T.C., B.N., M.N., J.A., M.A., P.C.Y., P.N., J.C.W.); Auburn University MRI Research Center, Department of Electrical and Computer Engineering, AL (T.S.D.); Institute of Pharmacology, Heart Research Center, University Medical Center, Georg-August-University and German Center for Cardiovascular Research, Göttingen, Germany (M.T., W.H.Z.)
| | - Mohamed Ameen
- From the Stanford Cardiovascular Institute and Department of Medicine, Division of Cardiology, CA (X.Q., J.R., X.Z., T.C., B.N., M.N., J.A., M.A., P.C.Y., P.N., J.C.W.); Auburn University MRI Research Center, Department of Electrical and Computer Engineering, AL (T.S.D.); Institute of Pharmacology, Heart Research Center, University Medical Center, Georg-August-University and German Center for Cardiovascular Research, Göttingen, Germany (M.T., W.H.Z.)
| | - Thomas S Denney
- From the Stanford Cardiovascular Institute and Department of Medicine, Division of Cardiology, CA (X.Q., J.R., X.Z., T.C., B.N., M.N., J.A., M.A., P.C.Y., P.N., J.C.W.); Auburn University MRI Research Center, Department of Electrical and Computer Engineering, AL (T.S.D.); Institute of Pharmacology, Heart Research Center, University Medical Center, Georg-August-University and German Center for Cardiovascular Research, Göttingen, Germany (M.T., W.H.Z.)
| | - Phillip C Yang
- From the Stanford Cardiovascular Institute and Department of Medicine, Division of Cardiology, CA (X.Q., J.R., X.Z., T.C., B.N., M.N., J.A., M.A., P.C.Y., P.N., J.C.W.); Auburn University MRI Research Center, Department of Electrical and Computer Engineering, AL (T.S.D.); Institute of Pharmacology, Heart Research Center, University Medical Center, Georg-August-University and German Center for Cardiovascular Research, Göttingen, Germany (M.T., W.H.Z.)
| | - Patricia Nguyen
- From the Stanford Cardiovascular Institute and Department of Medicine, Division of Cardiology, CA (X.Q., J.R., X.Z., T.C., B.N., M.N., J.A., M.A., P.C.Y., P.N., J.C.W.); Auburn University MRI Research Center, Department of Electrical and Computer Engineering, AL (T.S.D.); Institute of Pharmacology, Heart Research Center, University Medical Center, Georg-August-University and German Center for Cardiovascular Research, Göttingen, Germany (M.T., W.H.Z.)
| | - Wolfram H Zimmermann
- From the Stanford Cardiovascular Institute and Department of Medicine, Division of Cardiology, CA (X.Q., J.R., X.Z., T.C., B.N., M.N., J.A., M.A., P.C.Y., P.N., J.C.W.); Auburn University MRI Research Center, Department of Electrical and Computer Engineering, AL (T.S.D.); Institute of Pharmacology, Heart Research Center, University Medical Center, Georg-August-University and German Center for Cardiovascular Research, Göttingen, Germany (M.T., W.H.Z.)
| | - Joseph C Wu
- From the Stanford Cardiovascular Institute and Department of Medicine, Division of Cardiology, CA (X.Q., J.R., X.Z., T.C., B.N., M.N., J.A., M.A., P.C.Y., P.N., J.C.W.); Auburn University MRI Research Center, Department of Electrical and Computer Engineering, AL (T.S.D.); Institute of Pharmacology, Heart Research Center, University Medical Center, Georg-August-University and German Center for Cardiovascular Research, Göttingen, Germany (M.T., W.H.Z.).
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Wanjare M, Huang NF. Regulation of the microenvironment for cardiac tissue engineering. Regen Med 2017; 12:187-201. [PMID: 28244821 DOI: 10.2217/rme-2016-0132] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The microenvironment of myocardium plays an important role in the fate and function of cardiomyocytes (CMs). Cardiovascular tissue engineering strategies commonly utilize stem cell sources in conjunction with microenvironmental cues that often include biochemical, electrical, spatial and biomechanical factors. Microenvironmental stimulation of CMs, in addition to the incorporation of intercellular interactions from non-CMs, results in the generation of engineered cardiac constructs. Current studies suggest that use of these factors when engineering cardiac constructs improve cardiac function when implanted in vivo. In this review, we summarize the approaches to modulate biochemical, electrical, biomechanical and spatial factors to induce CM differentiation and their subsequent organization for cardiac tissue engineering application.
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Affiliation(s)
- Maureen Wanjare
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA.,Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Ngan F Huang
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA.,Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA.,Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
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Chrobak MO, Hansen KJ, Gershlak JR, Vratsanos M, Kanellias M, Gaudette GR, Pins GD. Design of a Fibrin Microthread-Based Composite Layer for Use in a Cardiac Patch. ACS Biomater Sci Eng 2017; 3:1394-1403. [DOI: 10.1021/acsbiomaterials.6b00547] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Megan O. Chrobak
- Department
of Biomedical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, Massachusetts 01609, United States
| | - Katrina J. Hansen
- Department
of Biomedical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, Massachusetts 01609, United States
| | - Joshua R. Gershlak
- Department
of Biomedical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, Massachusetts 01609, United States
| | - Maria Vratsanos
- Department
of Biomedical Engineering, Case Western Reserve University, 10900
Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Marianne Kanellias
- Department
of Biomedical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, Massachusetts 01609, United States
| | - Glenn R. Gaudette
- Department
of Biomedical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, Massachusetts 01609, United States
| | - George D. Pins
- Department
of Biomedical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, Massachusetts 01609, United States
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39
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Borovjagin AV, Ogle BM, Berry JL, Zhang J. From Microscale Devices to 3D Printing: Advances in Fabrication of 3D Cardiovascular Tissues. Circ Res 2017; 120:150-165. [PMID: 28057791 PMCID: PMC5224928 DOI: 10.1161/circresaha.116.308538] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 10/03/2016] [Accepted: 10/19/2016] [Indexed: 01/14/2023]
Abstract
Current strategies for engineering cardiovascular cells and tissues have yielded a variety of sophisticated tools for studying disease mechanisms, for development of drug therapies, and for fabrication of tissue equivalents that may have application in future clinical use. These efforts are motivated by the need to extend traditional 2-dimensional (2D) cell culture systems into 3D to more accurately replicate in vivo cell and tissue function of cardiovascular structures. Developments in microscale devices and bioprinted 3D tissues are beginning to supplant traditional 2D cell cultures and preclinical animal studies that have historically been the standard for drug and tissue development. These new approaches lend themselves to patient-specific diagnostics, therapeutics, and tissue regeneration. The emergence of these technologies also carries technical challenges to be met before traditional cell culture and animal testing become obsolete. Successful development and validation of 3D human tissue constructs will provide powerful new paradigms for more cost effective and timely translation of cardiovascular tissue equivalents.
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Affiliation(s)
- Anton V Borovjagin
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, The University of Alabama at Birmingham (A.V.B., J.L.B., J.Z.); and Department of Biomedical Engineering, College of Science and Engineering, The University of Minnesota, Minneapolis (B.M.O.)
| | - Brenda M Ogle
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, The University of Alabama at Birmingham (A.V.B., J.L.B., J.Z.); and Department of Biomedical Engineering, College of Science and Engineering, The University of Minnesota, Minneapolis (B.M.O.)
| | - Joel L Berry
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, The University of Alabama at Birmingham (A.V.B., J.L.B., J.Z.); and Department of Biomedical Engineering, College of Science and Engineering, The University of Minnesota, Minneapolis (B.M.O.)
| | - Jianyi Zhang
- From the Department of Biomedical Engineering, School of Medicine, School of Engineering, The University of Alabama at Birmingham (A.V.B., J.L.B., J.Z.); and Department of Biomedical Engineering, College of Science and Engineering, The University of Minnesota, Minneapolis (B.M.O.).
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40
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Jang J, Park HJ, Kim SW, Kim H, Park JY, Na SJ, Kim HJ, Park MN, Choi SH, Park SH, Kim SW, Kwon SM, Kim PJ, Cho DW. 3D printed complex tissue construct using stem cell-laden decellularized extracellular matrix bioinks for cardiac repair. Biomaterials 2017; 112:264-274. [DOI: 10.1016/j.biomaterials.2016.10.026] [Citation(s) in RCA: 315] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 10/12/2016] [Accepted: 10/12/2016] [Indexed: 12/13/2022]
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Domenech M, Polo-Corrales L, Ramirez-Vick JE, Freytes DO. Tissue Engineering Strategies for Myocardial Regeneration: Acellular Versus Cellular Scaffolds? TISSUE ENGINEERING. PART B, REVIEWS 2016; 22:438-458. [PMID: 27269388 PMCID: PMC5124749 DOI: 10.1089/ten.teb.2015.0523] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 05/24/2016] [Indexed: 01/03/2023]
Abstract
Heart disease remains one of the leading causes of death in industrialized nations with myocardial infarction (MI) contributing to at least one fifth of the reported deaths. The hypoxic environment eventually leads to cellular death and scar tissue formation. The scar tissue that forms is not mechanically functional and often leads to myocardial remodeling and eventual heart failure. Tissue engineering and regenerative medicine principles provide an alternative approach to restoring myocardial function by designing constructs that will restore the mechanical function of the heart. In this review, we will describe the cellular events that take place after an MI and describe current treatments. We will also describe how biomaterials, alone or in combination with a cellular component, have been used to engineer suitable myocardium replacement constructs and how new advanced culture systems will be required to achieve clinical success.
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Affiliation(s)
- Maribella Domenech
- Department of Chemical Engineering, Universidad de Puerto Rico, Mayagüez, Puerto Rico
| | - Lilliana Polo-Corrales
- Department of Chemical Engineering, Universidad de Puerto Rico, Mayagüez, Puerto Rico
- Department of Agroindustrial Engineering, Universidad de Sucre, Sucre, Colombia
| | - Jaime E. Ramirez-Vick
- Department of Chemical Engineering, Universidad de Puerto Rico, Mayagüez, Puerto Rico
- Department of Biomedical, Industrial & Human Factors Engineering, Wright State University, Dayton, Ohio
| | - Donald O. Freytes
- The New York Stem Cell Foundation Research Institute, New York, New York
- Joint Department of Biomedical Engineering, NC State/UNC-Chapel Hill, Raleigh, North Carolina
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43
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Shadrin IY, Khodabukus A, Bursac N. Striated muscle function, regeneration, and repair. Cell Mol Life Sci 2016; 73:4175-4202. [PMID: 27271751 PMCID: PMC5056123 DOI: 10.1007/s00018-016-2285-z] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 05/20/2016] [Accepted: 05/26/2016] [Indexed: 12/18/2022]
Abstract
As the only striated muscle tissues in the body, skeletal and cardiac muscle share numerous structural and functional characteristics, while exhibiting vastly different size and regenerative potential. Healthy skeletal muscle harbors a robust regenerative response that becomes inadequate after large muscle loss or in degenerative pathologies and aging. In contrast, the mammalian heart loses its regenerative capacity shortly after birth, leaving it susceptible to permanent damage by acute injury or chronic disease. In this review, we compare and contrast the physiology and regenerative potential of native skeletal and cardiac muscles, mechanisms underlying striated muscle dysfunction, and bioengineering strategies to treat muscle disorders. We focus on different sources for cellular therapy, biomaterials to augment the endogenous regenerative response, and progress in engineering and application of mature striated muscle tissues in vitro and in vivo. Finally, we discuss the challenges and perspectives in translating muscle bioengineering strategies to clinical practice.
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Affiliation(s)
- I Y Shadrin
- Department of Biomedical Engineering, Duke University, 3000 Science Drive, Hudson Hall 136, Durham, NC, 27708-90281, USA
| | - A Khodabukus
- Department of Biomedical Engineering, Duke University, 3000 Science Drive, Hudson Hall 136, Durham, NC, 27708-90281, USA
| | - N Bursac
- Department of Biomedical Engineering, Duke University, 3000 Science Drive, Hudson Hall 136, Durham, NC, 27708-90281, USA.
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Abstract
The goal of tissue engineering is to mitigate the critical shortage of donor organs via in vitro fabrication of functional biological structures. Tissue engineering is one of the most prominent examples of interdisciplinary fields, where scientists with different backgrounds work together to boost the quality of life by addressing critical health issues. Many different fields, such as developmental and molecular biology, as well as technologies, such as micro- and nanotechnologies and additive manufacturing, have been integral for advancing the field of tissue engineering. Over the past 20 years, spectacular advancements have been achieved to harness nature's ability to cure diseased tissues and organs. Patients have received laboratory-grown tissues and organs made out of their own cells, thus eliminating the risk of rejection. However, challenges remain when addressing more complex solid organs such as the heart, liver, and kidney. Herein, we review recent accomplishments as well as challenges that must be addressed in the field of tissue engineering and provide a perspective regarding strategies in further development.
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Affiliation(s)
- Ashkan Shafiee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157; ,
| | - Anthony Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157; ,
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45
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D'Amore A, Yoshizumi T, Luketich SK, Wolf MT, Gu X, Cammarata M, Hoff R, Badylak SF, Wagner WR. Bi-layered polyurethane - Extracellular matrix cardiac patch improves ischemic ventricular wall remodeling in a rat model. Biomaterials 2016; 107:1-14. [PMID: 27579776 DOI: 10.1016/j.biomaterials.2016.07.039] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 07/28/2016] [Accepted: 07/31/2016] [Indexed: 01/28/2023]
Abstract
As an intervention to abrogate ischemic cardiomyopathy, the concept of applying a temporary, local patch to the surface of the recently infarcted ventricle has been explored from a number of design perspectives. Two important features considered for such a cardiac patch include the provision of appropriate mechanical support and the capacity to influence the remodeling pathway by providing cellular or biomolecule delivery. The objective of this report was to focus on these two features by first evaluating the incorporation of a cardiac extracellular matrix (ECM) component, and second by evaluating the impact of patch anisotropy on the pathological remodeling process initiated by myocardial infarction. The functional outcomes of microfibrous, elastomeric, biodegradable cardiac patches have been evaluated in a rat chronic infarction model. Ten weeks after infarction and 8 wk after patch epicardial placement, echocardiographic function, tissue-level structural remodeling (e.g., biaxial mechanical response and microstructural analysis), and cellular level remodeling were assessed. The results showed that the incorporation of a cardiac ECM altered the progression of several keys aspects of maladaptive remodeling following myocardial infarction. This included decreasing LV global mechanical compliance, inhibiting echocardiographically-measured functional deterioration, mitigating scar formation and LV wall thinning, and promoting angiogenesis. In evaluating the impact of patch anisotropy, no effects from the altered patch mechanics were detected after 8 wk, possibly due to patch fibrous encapsulation. Overall, this study demonstrates the benefit of a cardiac patch design that combines both ventricle mechanical support, through a biodegradable, fibrillary elastomeric component, and the incorporation of ECM-based hydrogel components.
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Affiliation(s)
- Antonio D'Amore
- Department of Bioengineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Chemical Engineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Fondazione RiMED, Italy; DICGIM, Università di Palermo, Italy
| | - Tomo Yoshizumi
- Department of Bioengineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Chemical Engineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Samuel K Luketich
- Department of Bioengineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Chemical Engineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Matthew T Wolf
- Department of Bioengineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Chemical Engineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Xinzhu Gu
- Department of Bioengineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Chemical Engineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Richard Hoff
- Department of Bioengineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Chemical Engineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Stephen F Badylak
- Department of Bioengineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Chemical Engineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - William R Wagner
- Department of Bioengineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Chemical Engineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Surgery, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
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46
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Riemenschneider SB, Mattia DJ, Wendel JS, Schaefer JA, Ye L, Guzman PA, Tranquillo RT. Inosculation and perfusion of pre-vascularized tissue patches containing aligned human microvessels after myocardial infarction. Biomaterials 2016; 97:51-61. [PMID: 27162074 PMCID: PMC4891978 DOI: 10.1016/j.biomaterials.2016.04.031] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/15/2016] [Accepted: 04/20/2016] [Indexed: 12/18/2022]
Abstract
A major goal of tissue engineering is the creation of pre-vascularized tissues that have a high density of organized microvessels that can be rapidly perfused following implantation. This is especially critical for highly metabolic tissues like myocardium, where a thick myocardial engineered tissue would require rapid perfusion within the first several days to survive transplantation. In the present work, tissue patches containing human microvessels that were either randomly oriented or aligned were placed acutely on rat hearts post-infarction and for each case it was determined whether rapid inosculation could occur and perfusion of the patch could be maintained for 6 days in an infarct environment. Patches containing self-assembled microvessels were formed by co-entrapment of human blood outgrowth endothelial cells and human pericytes in fibrin gel. Cell-induced gel contraction was mechanically-constrained resulting in samples with high densities of microvessels that were either randomly oriented (with 420 ± 140 lumens/mm(2)) or uniaxially aligned (with 940 ± 240 lumens/mm(2)) at the time of implantation. These patches were sutured onto the epicardial surface of the hearts of athymic rats following permanent ligation of the left anterior descending artery. In both aligned and randomly oriented microvessel patches, inosculation occurred and perfusion of the transplanted human microvessels was maintained, proving the in vivo vascularization potential of these engineered tissues. No difference was found in the number of human microvessels that were perfused in the randomly oriented (111 ± 75 perfused lumens/mm(2)) and aligned (173 ± 97 perfused lumens/mm(2)) patches. Our results demonstrate that tissue patches containing a high density of either aligned or randomly oriented human pre-formed microvessels achieve rapid perfusion in the myocardial infarct environment - a necessary first-step toward the creation of a thick, perfusable heart patch.
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Affiliation(s)
- Sonja B Riemenschneider
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, USA
| | - Donald J Mattia
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, USA
| | - Jacqueline S Wendel
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, USA
| | - Jeremy A Schaefer
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, USA
| | - Lei Ye
- Department of Medicine, University of Minnesota, Minneapolis, MN, USA; National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore
| | - Pilar A Guzman
- Integrative Biology and Physiology Phenotyping Core, University of Minnesota, Minneapolis, MN, USA
| | - Robert T Tranquillo
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, USA; Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, USA.
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Grasman JM, O’Brien MP, Ackerman K, Gagnon KA, Wong GM, Pins GD. The Effect of Sterilization Methods on the Structural and Chemical Properties of Fibrin Microthread Scaffolds. Macromol Biosci 2016; 16:836-46. [PMID: 26847494 PMCID: PMC4902748 DOI: 10.1002/mabi.201500410] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 01/02/2016] [Indexed: 01/13/2023]
Abstract
A challenge for the design of scaffolds in tissue engineering is to determine a terminal sterilization method that will retain the structural and biochemical properties of the materials. Since commonly used heat and ionizing energy-based sterilization methods have been shown to alter the material properties of protein-based scaffolds, the effects of ethanol and ethylene oxide (EtO) sterilization on the cellular compatibility and the structural, chemical, and mechanical properties of uncrosslinked, UV crosslinked, or 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) crosslinked fibrin microthreads in neutral (EDCn) or acidic (EDCa) buffers are evaluated. EtO sterilization significantly reduces the tensile strength of uncrosslinked microthreads. Surface chemistry analyses show that EtO sterilization induces alkylation of EDCa microthreads leading to a significant reduction in myoblast attachment. The material properties of EDCn microthreads do not appear to be affected by the sterilization method. These results significantly enhance the understanding of how sterilization or crosslinking techniques affect the material properties of protein scaffolds.
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Affiliation(s)
- Jonathan M. Grasman
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, 01609, USA. Bioengineering Institute, Worcester Polytechnic Institute, Worcester, MA, 01609, USA. Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
| | - Megan P. O’Brien
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, 01609, USA
| | - Kevin Ackerman
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, 01609, USA
| | - Keith A. Gagnon
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, 01609, USA. Boston University School of Medicine, Boston, MA, 02119, USA. Department of Biomedical Engineering, Boston University, Boston, MA, 02215, USA
| | - Gregory M. Wong
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, 01609, USA. Department of Geosciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - George D. Pins
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, 01609, USA. Bioengineering Institute, Worcester Polytechnic Institute, Worcester, MA, 01609, USA
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48
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Roura S, Gálvez-Montón C, Bayes-Genis A. Fibrin, the preferred scaffold for cell transplantation after myocardial infarction? An old molecule with a new life. J Tissue Eng Regen Med 2016; 11:2304-2313. [PMID: 27061269 DOI: 10.1002/term.2129] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 11/13/2015] [Accepted: 12/10/2015] [Indexed: 12/12/2022]
Abstract
Fibrin is a topical haemostat, sealant and tissue glue, which consists of concentrated fibrinogen and thrombin. It has broad medical and research uses. Recently, several studies have shown that engineered patches comprising mixtures of biological or synthetic materials and progenitor cells showed therapeutic promise for regenerating damaged tissues. In that context, fibrin maintains cell adherence at the site of injury, where cells are required for tissue repair, and offers a nurturing environment that protects implanted cells without interfering with their expected benefit. Here we review the past, present and future uses of fibrin, with a focus on its use as a scaffold material for cardiac repair. Fibrin patches filled with regenerative cells can be placed over the scarring myocardium; this methodology avoids many of the drawbacks of conventional cell-infusion systems. Advantages of using fibrin also include extraction from the patient's blood, an easy readjustment and implantation procedure, increase in viability and early proliferation of delivered cells, and benefits even with the patch alone. In line with this, we discuss the numerous preclinical studies that have used fibrin-cell patches, the practical issues inherent in their generation, and the necessary process of scaling-up from animal models to patients. In the light of the data presented, fibrin stands out as a valuable biomaterial for delivering cells to damaged tissue and for promoting beneficial effects. However, before the fibrin scaffold can be translated from bench to bedside, many issues must be explored further, including suboptimal survival and limited migration of the implanted cells to underlying ischaemic myocardium. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Santiago Roura
- Heart Failure and Cardiac Regeneration (ICREC) Research Programme, Germans Trias i Pujol Health Science Research Institute, Badalona, Barcelona, Spain.,Center of Regenerative Medicine in Barcelona, Barcelona, Spain
| | - Carolina Gálvez-Montón
- Heart Failure and Cardiac Regeneration (ICREC) Research Programme, Germans Trias i Pujol Health Science Research Institute, Badalona, Barcelona, Spain
| | - Antoni Bayes-Genis
- Heart Failure and Cardiac Regeneration (ICREC) Research Programme, Germans Trias i Pujol Health Science Research Institute, Badalona, Barcelona, Spain.,Cardiology Service, Germans Trias i Pujol University Hospital, Badalona, Barcelona, Spain.,Department of Medicine, Universitat Autònoma de Barcelona, Spain
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49
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Parsa H, Ronaldson K, Vunjak-Novakovic G. Bioengineering methods for myocardial regeneration. Adv Drug Deliv Rev 2016; 96:195-202. [PMID: 26150344 PMCID: PMC4698189 DOI: 10.1016/j.addr.2015.06.012] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Revised: 06/16/2015] [Accepted: 06/30/2015] [Indexed: 12/20/2022]
Abstract
The challenging task of heart regeneration is being pursued in three related directions: derivation of cardiomyocytes from human stem cells, in vitro engineering and maturation of cardiac tissues, and development of methods for controllable cell delivery into the heart. In this review, we focus on tissue engineering methods that recapitulate biophysical signaling found during normal heart development and maturation. We discuss the use of scaffold-bioreactor systems for engineering functional human cardiac tissues, and the methods for delivering stem cells, cardiomyocytes and engineered tissues into the heart.
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Affiliation(s)
- Hesam Parsa
- Department of Biomedical Engineering, Columbia University, New York, NY, United States
| | - Kacey Ronaldson
- Department of Biomedical Engineering, Columbia University, New York, NY, United States
| | - Gordana Vunjak-Novakovic
- Department of Biomedical Engineering, Columbia University, New York, NY, United States; Department of Medicine, Columbia University, New York, NY, United States.
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50
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Perea-Gil I, Prat-Vidal C, Bayes-Genis A. In vivo experience with natural scaffolds for myocardial infarction: the times they are a-changin'. Stem Cell Res Ther 2015; 6:248. [PMID: 26670389 PMCID: PMC4681026 DOI: 10.1186/s13287-015-0237-4] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Treating a myocardial infarction (MI), the most frequent cause of death worldwide, remains one of the most exciting medical challenges in the 21st century. Cardiac tissue engineering, a novel emerging treatment, involves the use of therapeutic cells supported by a scaffold for regenerating the infarcted area. It is essential to select the appropriate scaffold material; the ideal one should provide a suitable cellular microenvironment, mimic the native myocardium, and allow mechanical and electrical coupling with host tissues. Among available scaffold materials, natural scaffolds are preferable for achieving these purposes because they possess myocardial extracellular matrix properties and structures. Here, we review several natural scaffolds for applications in MI management, with a focus on pre-clinical studies and clinical trials performed to date. We also evaluate scaffolds combined with different cell types and proteins for their ability to promote improved heart function, contractility and neovascularization, and attenuate adverse ventricular remodeling. Although further refinement is necessary in the coming years, promising results indicate that natural scaffolds may be a valuable translational therapeutic option with clinical impact in MI repair.
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Affiliation(s)
- Isaac Perea-Gil
- ICREC (Heart Failure and Cardiac Regeneration) Research Lab, Health Sciences Research Institute Germans Trias i Pujol (IGTP). Cardiology Service, Hospital Universitari Germans Trias i Pujol, 08916, Badalona, Barcelona, Spain
| | - Cristina Prat-Vidal
- ICREC (Heart Failure and Cardiac Regeneration) Research Lab, Health Sciences Research Institute Germans Trias i Pujol (IGTP). Cardiology Service, Hospital Universitari Germans Trias i Pujol, 08916, Badalona, Barcelona, Spain.
| | - Antoni Bayes-Genis
- ICREC (Heart Failure and Cardiac Regeneration) Research Lab, Health Sciences Research Institute Germans Trias i Pujol (IGTP). Cardiology Service, Hospital Universitari Germans Trias i Pujol, 08916, Badalona, Barcelona, Spain.,Department of Medicine, Autonomous University of Barcelona (UAB), Barcelona, Spain
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