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Brimmer S, Ji P, Heinle JS, Grande-Allen J, Keswani SG. Development of a novel 3D perfusable vascular graft model to elucidate the mechanisms for congenital heart disorders. Artif Organs 2024; 48:821-830. [PMID: 38975726 DOI: 10.1111/aor.14772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 02/22/2024] [Accepted: 03/13/2024] [Indexed: 07/09/2024]
Abstract
Pediatric heart transplantation is hampered by a chronic shortage of donor organs. This problem is further confounded by graft rejection. Identification of earlier indicators of pediatric graft rejection and development of subsequent strategies to counteract these effects will increase the longevity of transplanted pediatric hearts. Heart transplant reject is due to a complex series of events, resulting in CAV, which is thought to be mediated through a host immune response. However, the earlier events leading to CAV are not very well known. We hypothesize that early events related to ischemia reperfusion injury during pediatric heart transplantation are responsible for CAV and subsequent graft rejection. Identification of the molecular markers of ischemia reperfusion injury and development of subsequent therapies to block these pathways can potentially lead to a therapeutic strategy to reduce CAV and increase the longevity of the transplanted heart. To accomplish this goal, we have developed a perfusable vascular graft model populated with endothelial cells and demonstrated the feasibility of this model to understand the early events of ischemia reperfusion injury.
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Affiliation(s)
- Sunita Brimmer
- Laboratory for Regenerative Tissue Repair, Texas Children's Hospital, Houston, Texas, USA
- Center for Congenital Cardiac Research, Texas Children's Hospital, Houston, Texas, USA
- Division of Congenital Heart Surgery, Texas Children's Hospital, Houston, Texas, USA
| | - Pengfei Ji
- Laboratory for Regenerative Tissue Repair, Texas Children's Hospital, Houston, Texas, USA
- Center for Congenital Cardiac Research, Texas Children's Hospital, Houston, Texas, USA
- Division of Congenital Heart Surgery, Texas Children's Hospital, Houston, Texas, USA
| | - Jeffrey S Heinle
- Center for Congenital Cardiac Research, Texas Children's Hospital, Houston, Texas, USA
- Division of Congenital Heart Surgery, Texas Children's Hospital, Houston, Texas, USA
- Department of Surgery, Baylor College of Medicine, Houston, Texas, USA
- Division of Pediatric Surgery, Department of Surgery, Texas Children's Hospital, Houston, Texas, USA
| | | | - Sundeep G Keswani
- Laboratory for Regenerative Tissue Repair, Texas Children's Hospital, Houston, Texas, USA
- Center for Congenital Cardiac Research, Texas Children's Hospital, Houston, Texas, USA
- Department of Surgery, Baylor College of Medicine, Houston, Texas, USA
- Division of Pediatric Surgery, Department of Surgery, Texas Children's Hospital, Houston, Texas, USA
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2
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Kafili G, Kabir H, Jalali Kandeloos A, Golafshan E, Ghasemi S, Mashayekhan S, Taebnia N. Recent advances in soluble decellularized extracellular matrix for heart tissue engineering and organ modeling. J Biomater Appl 2023; 38:577-604. [PMID: 38006224 PMCID: PMC10676626 DOI: 10.1177/08853282231207216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2023]
Abstract
Despite the advent of tissue engineering (TE) for the remodeling, restoring, and replacing damaged cardiovascular tissues, the progress is hindered by the optimal mechanical and chemical properties required to induce cardiac tissue-specific cellular behaviors including migration, adhesion, proliferation, and differentiation. Cardiac extracellular matrix (ECM) consists of numerous structural and functional molecules and tissue-specific cells, therefore it plays an important role in stimulating cell proliferation and differentiation, guiding cell migration, and activating regulatory signaling pathways. With the improvement and modification of cell removal methods, decellularized ECM (dECM) preserves biochemical complexity, and bio-inductive properties of the native matrix and improves the process of generating functional tissue. In this review, we first provide an overview of the latest advancements in the utilization of dECM in in vitro model systems for disease and tissue modeling, as well as drug screening. Then, we explore the role of dECM-based biomaterials in cardiovascular regenerative medicine (RM), including both invasive and non-invasive methods. In the next step, we elucidate the engineering and material considerations in the preparation of dECM-based biomaterials, namely various decellularization techniques, dECM sources, modulation, characterizations, and fabrication approaches. Finally, we discuss the limitations and future directions in fabrication of dECM-based biomaterials for cardiovascular modeling, RM, and clinical translation.
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Affiliation(s)
- Golara Kafili
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, Iran
| | - Hannaneh Kabir
- Molecular Cell Biomechanics Laboratory, Departments of Bioengineering and Mechanical Engineering, University of California, Berkeley, CA, USA
| | | | - Elham Golafshan
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, Iran
| | - Sara Ghasemi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Shohreh Mashayekhan
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, Iran
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Nayere Taebnia
- Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden
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3
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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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4
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Brimmer S, Ji P, Birla AK, Keswani SG, Caldarone CA, Birla RK. Recent advances in biological pumps as a building block for bioartificial hearts. Front Bioeng Biotechnol 2023; 11:1061622. [PMID: 36741765 PMCID: PMC9895798 DOI: 10.3389/fbioe.2023.1061622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 01/04/2023] [Indexed: 01/22/2023] Open
Abstract
The field of biological pumps is a subset of cardiac tissue engineering and focused on the development of tubular grafts that are designed generate intraluminal pressure. In the simplest embodiment, biological pumps are tubular grafts with contractile cardiomyocytes on the external surface. The rationale for biological pumps is a transition from planar 3D cardiac patches to functional biological pumps, on the way to complete bioartificial hearts. Biological pumps also have applications as a standalone device, for example, to support the Fontan circulation in pediatric patients. In recent years, there has been a lot of progress in the field of biological pumps, with innovative fabrication technologies. Examples include the use of cell sheet engineering, self-organized heart muscle, bioprinting and in vivo bio chambers for vascularization. Several materials have been tested for biological pumps and included resected aortic segments from rodents, type I collagen, and fibrin hydrogel, to name a few. Multiple bioreactors have been tested to condition biological pumps and replicate the complex in vivo environment during controlled in vitro culture. The purpose of this article is to provide an overview of the field of the biological pumps, outlining progress in the field over the past several years. In particular, different fabrication methods, biomaterial platforms for tubular grafts and examples of bioreactors will be presented. In addition, we present an overview of some of the challenges that need to be overcome for the field of biological pumps to move forward.
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Affiliation(s)
- Sunita Brimmer
- Laboratory for Regenerative Tissue Repair, Texas Children’s Hospital, Houston, TX, United States,Center for Congenital Cardiac Research, Texas Children’s Hospital, Houston, TX, United States,Division of Congenital Heart Surgery, Texas Children’s Hospital, Houston, TX, United States
| | - Pengfei Ji
- Laboratory for Regenerative Tissue Repair, Texas Children’s Hospital, Houston, TX, United States,Center for Congenital Cardiac Research, Texas Children’s Hospital, Houston, TX, United States,Division of Congenital Heart Surgery, Texas Children’s Hospital, Houston, TX, United States
| | - Aditya K. Birla
- Laboratory for Regenerative Tissue Repair, Texas Children’s Hospital, Houston, TX, United States,Center for Congenital Cardiac Research, Texas Children’s Hospital, Houston, TX, United States
| | - Sundeep G. Keswani
- Laboratory for Regenerative Tissue Repair, Texas Children’s Hospital, Houston, TX, United States,Center for Congenital Cardiac Research, Texas Children’s Hospital, Houston, TX, United States,Department of Surgery, Baylor College of Medicine, Houston, TX, United States,Division of Pediatric Surgery, Department of Surgery, Texas Children’s Hospital, Houston, TX, United States
| | - Christopher A. Caldarone
- Center for Congenital Cardiac Research, Texas Children’s Hospital, Houston, TX, United States,Division of Congenital Heart Surgery, Texas Children’s Hospital, Houston, TX, United States,Department of Surgery, Baylor College of Medicine, Houston, TX, United States,Division of Pediatric Surgery, Department of Surgery, Texas Children’s Hospital, Houston, TX, United States
| | - Ravi K. Birla
- Laboratory for Regenerative Tissue Repair, Texas Children’s Hospital, Houston, TX, United States,Center for Congenital Cardiac Research, Texas Children’s Hospital, Houston, TX, United States,Division of Congenital Heart Surgery, Texas Children’s Hospital, Houston, TX, United States,Department of Surgery, Baylor College of Medicine, Houston, TX, United States,Division of Pediatric Surgery, Department of Surgery, Texas Children’s Hospital, Houston, TX, United States,*Correspondence: Ravi K. Birla,
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5
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Lijten OW, Rosero Salazar DH, van Erp M, Bronkhorst E, Von den Hoff JW. Effect of niche components on masseter satellite cell differentiation on fibrin coatings. Eur J Oral Sci 2022; 130:e12849. [PMID: 35020959 PMCID: PMC9303748 DOI: 10.1111/eos.12849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 12/07/2021] [Indexed: 11/29/2022]
Abstract
In skeletal muscles, niche factors stimulate satellite cells to activate and induce muscle regeneration after injury. In vitro, matrigel is widely used for myoblast differentiation, however, is unsuitable for clinical applications. Therefore, this study aimed to analyze attachment and differentiation of satellite cells into myotubes on fibrin coatings with selected niche components. The attachment of satellite cells to fibrin alone and fibrin with niche components (laminin, collagen‐IV, laminin‐entactin complex [LEC]) were compared to matrigel. Only on matrigel and fibrin with LEC, Pax7‐positive cells attached well. Then, LEC was selected to analyze proliferation, differentiation, and fusion indices. The proliferation index at day 1 on fibrin‐LEC (22.5%, SD 9.1%) was similar to that on matrigel (30.8% [SD 11.1%]). The differentiation index on fibrin‐LEC (28.7% [SD 6.1%] at day 5 and 32.8% [SD 6.7%] at day 7) was similar to that on matrigel (40.1% [5.1%] at day 5 and 27.1% [SD 4.3%] at day 7). On fibrin‐LEC, the fusion index at day 9 (26.9% [SD 11.5%]) was similar to that on matrigel (25.5% [SD 4.7%]). Our results showed that the addition of LEC enhances the formation of myotubes on fibrin. Fibrin with LEC might be suitable to enhance muscle regeneration after surgery such as cleft palate repair and other muscle defects.
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Affiliation(s)
- Olivier Willem Lijten
- Department of Orthodontics and Craniofacial Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Doris Haydee Rosero Salazar
- Department of Orthodontics and Craniofacial Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.,Department of Medical Basic Sciences, Faculty of Health, Universidad Icesi, Cali, Colombia
| | - Merijn van Erp
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ewald Bronkhorst
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Johannes W Von den Hoff
- Department of Orthodontics and Craniofacial Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
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6
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McCrary MW, Bousalis D, Mobini S, Song YH, Schmidt CE. Decellularized tissues as platforms for in vitro modeling of healthy and diseased tissues. Acta Biomater 2020; 111:1-19. [PMID: 32464269 DOI: 10.1016/j.actbio.2020.05.031] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/15/2020] [Accepted: 05/19/2020] [Indexed: 12/13/2022]
Abstract
Biomedical engineers are at the forefront of developing novel treatments to improve human health, however, many products fail to translate to clinical implementation. In vivo pre-clinical animal models, although the current best approximation of complex disease conditions, are limited by reproducibility, ethical concerns, and poor accurate prediction of human response. Hence, there is a need to develop physiologically relevant, low cost, scalable, and reproducible in vitro platforms to provide reliable means for testing drugs, biomaterials, and tissue engineered products for successful clinical translation. One emerging approach of developing physiologically relevant in vitro models utilizes decellularized tissues/organs as biomaterial platforms for 2D and 3D models of healthy and diseased tissue. Decellularization is a process that removes cellular content and produces tissue-specific extracellular matrix scaffolds that can more accurately recapitulate an organ/tissue's native microenvironment compared to other natural or synthetic materials. Decellularized tissues hold enormous potential for in vitro modeling of various disease phenotypes and tissue responses to drugs or external conditions such as aging, toxin exposure, or even implantation. In this review, we highlight the need for in vitro models, the advantages and limitations of implementing decellularized tissues, and considerations of the decellularization process. We discuss current research efforts towards applying decellularized tissues as platforms to generate in vitro models of healthy and diseased tissues, and where we foresee the field progressing. A variety of organs/tissues are discussed, including brain, heart, kidney, large intestine, liver, lung, skeletal muscle, skin, and tongue. STATEMENT OF SIGNIFICANCE: Many biomedical products fail to reach clinical translation due to animal model limitations. Development of physiologically relevant in vitro models can provide a more economic, scalable, and reproducible means of testing drugs/therapeutics for successful clinical translation. The use of decellularized tissues as platforms for in vitro models holds promise, as these scaffolds can effectively replicate native tissue complexity, but is not widely explored. This review discusses the need for in vitro models, the promise of decellularized tissues as biomaterial substrates, and the current research applying decellularized tissues towards the creation of in vitro models. Further, this review provides insights into the current limitations and future of such in vitro models.
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Affiliation(s)
- Michaela W McCrary
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Dr. BMS J257, Gainesville, FL 32611, United States.
| | - Deanna Bousalis
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Dr. BMS J257, Gainesville, FL 32611, United States.
| | - Sahba Mobini
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Dr. BMS J257, Gainesville, FL 32611, United States; Instituto de Micro y Nanotechnología, IMN-CNM, CSIC (CEI UAM+CSIC), Calle Isaac Newton 8, 28760 Madrid, Tres Cantos, Spain; Departamento de Biología Molecular and Centro de Biología Molecular, Universidad Autónoma de Madrid, Calle Nicolás Cabrera, 28049 Madrid, Spain.
| | - Young Hye Song
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Dr. BMS J257, Gainesville, FL 32611, United States; Department of Biomedical Engineering, University of Arkansas, 134 White Hall, Fayetteville, AR 72701, United States.
| | - Christine E Schmidt
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Dr. BMS J257, Gainesville, FL 32611, United States.
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7
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Birla RK, Williams SK. 3D bioprinting and its potential impact on cardiac failure treatment: An industry perspective. APL Bioeng 2020; 4:010903. [PMID: 32095736 PMCID: PMC7028435 DOI: 10.1063/1.5128371] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 01/13/2020] [Indexed: 12/23/2022] Open
Abstract
3D printing technologies are emerging as a disruptive innovation for the treatment of patients in cardiac failure. The ability to create custom devices, at the point of care, will affect both the diagnosis and treatment of cardiac diseases. The introduction of bioinks containing cells and biomaterials and the development of new computer assisted design and computer assisted manufacturing systems have ushered in a new technology known as 3D bioprinting. Small scale 3D bioprinting has successfully created cardiac tissue microphysiological systems. 3D bioprinting provides an opportunity to evaluate the assembly of specific parts of the heart and most notably heart valves. With the continuous development of instrumentation and bioinks and a complete understanding of cardiac tissue development, it is proposed that 3D bioprinting may permit the assembly of a heart described as a total biofabricated heart.
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Affiliation(s)
| | - Stuart K. Williams
- Bioficial Organs Program, University of
Louisville, Louisville, Kentucky 40202, USA
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8
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Islas JF, Abbasgholizadeh R, Dacso C, Potaman VN, Navran S, Bond RA, Iyer D, Birla R, Schwartz RJ. β-Adrenergic stimuli and rotating suspension culture enhance conversion of human adipogenic mesenchymal stem cells into highly conductive cardiac progenitors. J Tissue Eng Regen Med 2020; 14:306-318. [PMID: 31821703 DOI: 10.1002/term.2994] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 11/08/2019] [Accepted: 11/19/2019] [Indexed: 12/26/2022]
Abstract
Clinical trials using human adipogenic mesenchymal stem cells (hAdMSCs) for the treatment of cardiac diseases have shown improvement in cardiac function and were proven safe. However, hAdMSCs do not convert efficiently into cardiomyocytes (CMs) or vasculature. Thus, reprogramming hAdMSCs into myocyte progenitors may fare better in future investigations. To reprogramme hAdMSCs into electrically conductive cardiac progenitor cells, we pioneered a three-step reprogramming strategy that uses proven MESP1/ETS2 transcription factors, β-adrenergic and hypoxic signalling induced in three-dimensional (3D) cardiospheres. In Stage 1, ETS2 and MESP1 activated NNKX2.5, TBX5, MEF2C, dHAND, and GATA4 during the conversion of hAdMSCs into cardiac progenitor cells. Next, in Stage 2, β2AR activation repositioned cardiac progenitors into de novo immature conductive cardiac cells, along with the appearance of RYR2, CAV2.1, CAV3.1, NAV1.5, SERCA2, and CX45 gene transcripts and displayed action potentials. In Stage 3, electrical conduction that was fostered by 3D cardiospheres formed in a Synthecon®, Inc. rotating bioreactor induced the appearance of hypoxic genes: HIF-1α/β, PCG 1α/β, and NOS2, which coincided with the robust activation of adult contractile genes including MLC2v, TNNT2, and TNNI3, ion channel genes, and the appearance of hyperpolarization-activated and cyclic nucleotide-gated channels (HCN1-4). Conduction velocities doubled to ~200 mm/s after hypoxia and doubled yet again after dissociation of the 3D cell clusters to ~400 mm/s. By comparison, normal conduction velocities within working ventricular myocytes in the whole heart range from 0.5 to 1 m/s. Epinephrine stimulation of stage 3 cardiac cells in patches resulted in an increase in amplitude of the electrical wave, indicative of conductive cardiac cells. Our efficient protocol that converted hAdMSCs into highly conductive cardiac progenitors demonstrated the potential utilization of stage 3 cells for tissue engineering applications for cardiac repair.
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Affiliation(s)
- Jose Francisco Islas
- Texas Heart Institute, Texas Medical Center, Houston, TX.,Departamento de Bioquímica y Medicina Molecular, Faculta de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Mexico
| | | | - Clifford Dacso
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Texas Medical Center, Houston, TX
| | | | | | - Richard A Bond
- College of Pharmacy, Science and Engineering Research Center, University of Houston, Houston, TX
| | - Dinakar Iyer
- Department of Biology and Biochemistry, University of Houston, Houston, TX
| | - Ravi Birla
- Department of Biomedical Engineering, University of Houston, Houston, TX
| | - Robert J Schwartz
- Texas Heart Institute, Texas Medical Center, Houston, TX.,Department of Biology and Biochemistry, University of Houston, Houston, TX
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9
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Abbasgholizadeh R, Islas JF, Navran S, Potaman VN, Schwartz RJ, Birla RK. A Highly Conductive 3D Cardiac Patch Fabricated Using Cardiac Myocytes Reprogrammed from Human Adipogenic Mesenchymal Stem Cells. Cardiovasc Eng Technol 2020; 11:205-218. [PMID: 31916039 DOI: 10.1007/s13239-019-00451-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 12/18/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE The objective of this study was to bioengineer 3D patches from cardiac myocytes that have been reprogrammed from human adipogenic mesenchymal stem cells (hADMSCs). METHODS Human adipogenic mesenchymal stem cells (hADMSCs) were reprogrammed to form cardiac myocytes using transcription factors ETS2 and MESP1. Reprogrammed cardiac myocytes were cultured in a fibrin gel to bioengineer 3D patch patches. The effect of initial plating density (1-25 million cells per patch), time (28-day culture period) and treatment with 1 μM isoproterenol and 1 μM epinephrine were evaluated. RESULTS 3D patches were fabricated using cardiac myocytes that have been reprogrammed from hADMSCs. Based on optimization studies, it was determined that 10 million cells were needed to bioengineer a single patch, that measured 2 × 2 cm2. Furthermore, 3D patches fabricated 10 million cells were stable in culture for up to 28 days. Treatment of 3D patches with 1 μM isoproterenol and 1 μM epinephrine resulted in an increase in the electrical properties, as measured by electrical impulse amplitude and frequency. An increase in the expression of mTOR, KCNV1, GJA5, KCNJ16, CTNNT2, KCNV2, MYO3, FOXO1 and KCND2 was noted in response to treatment of 3D patches with isoproterenol and epinephrine. CONCLUSION Based on the results of this study, there is evidence to support the successful fabrication of a highly functional 3D patches with measurable electrical activity using cardiac myocytes reprogrammed from hADMSCs. 3D patches fabricated using optimal conductions described in this study can be used to improve the functional properties of failing hearts. Predominantly, in case of the infarcted hearts with partial loss of electrical activity, the electrical properties of the 3D patches may restore the electrical activity of the heart.
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Affiliation(s)
- Reza Abbasgholizadeh
- Stem Cell Engineering, Texas Heart Institute, 6770 Bertner Avenue, Houston, TX, 77225-0345, USA
| | - Jose Francisco Islas
- Stem Cell Engineering, Texas Heart Institute, 6770 Bertner Avenue, Houston, TX, 77225-0345, USA
| | - Stephen Navran
- Synthecon, Inc., 8977 Interchange Drive, Houston, Texas, 77054, USA
| | - Vladimir N Potaman
- Stem Cell Engineering, Texas Heart Institute, 6770 Bertner Avenue, Houston, TX, 77225-0345, USA
| | - Robert J Schwartz
- Stem Cell Engineering, Texas Heart Institute, 6770 Bertner Avenue, Houston, TX, 77225-0345, USA.,Department of Biology and Biochemistry, Science and Engineering Research Center (SERC-Building 445), 3605 Cullen Blvd, Room 5004, Houston, TX, 77204-5060, USA
| | - Ravi K Birla
- Stem Cell Engineering, Texas Heart Institute, 6770 Bertner Avenue, Houston, TX, 77225-0345, USA.
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10
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Loforte A. Heart Replacement Therapy: Biological, Mechanical or Regenerative? Artif Organs 2018; 42:681-685. [DOI: 10.1111/aor.13299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Antonio Loforte
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Via Massarenti n.9, S. Orsola Hospital; Bologna University; Bologna 40138 Italy
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11
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Shafei AES, Ali MA, Ghanem HG, Shehata AI, Abdelgawad AA, Handal HR, ElSayed AS, Ashaal AE, Ali MM, El-Shal AS. Mechanistic effects of mesenchymal and hematopoietic stem cells: New therapeutic targets in myocardial infarction. J Cell Biochem 2018; 119:5274-5286. [PMID: 29266431 DOI: 10.1002/jcb.26637] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 12/19/2017] [Indexed: 12/16/2022]
Abstract
Myocardial infarction (MI) results in dysfunction and irreversible loss of cardiomyocytes and is of the most serious health threats today. Mesenchymal stem cells (MSCs) and hematopoietic stem cells (HSCs) have been explored as promising cell therapy in MI and regenerative therapy. Recently, reports investigated the potential therapeutic effects of MSCs or HSCs transplantation after MI in numerous experimental and clinical studies; however, their results are controversy and needs more explorations. The current review is an attempt to clarify the therapeutic potentials of MSCs and HSCs in MI therapy, as well as their possible effects; especially the paracrine one and the exosome-derived stem cell among animal models as well as clinical trials conducted within the last 10 years. In this context, various sources of MSCs and HSCs have been addressed in helping cardiac regeneration by either revitalizing the cardiac stem cells niche or revascularizing the arteries and veins of the heart. In addition, both MSCs and HSCs could produce paracrine mediators and growth factors which led to cardiomyocytes protection, angiogenesis, immunemodulation, antioxidants, anti-apoptotic, anti-inflammatory, antifibrotic, as well as increasing cardiac contractility. Recently, microRNAs (miRNAs), post-transcriptional regulators of gene expression, and long non-coding RNA (lncRNA), a miRNA sponge, are recent stem cell-derived mediators can be promising targets of MSCs and HSCs through their paracrine effects. Although MSCs and HSCs have achieved considerable achievements, however, some challenges still remain that need to be overcome in order to establish it as a successful technique. The present review clarified the mechanistic potentials of MSCs and HSCs especially paracrine effects involved in MI including human and animal studies and the challenges challenges regarding type, differentiation, route, and number of injections.
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Affiliation(s)
- Ayman El-Sayed Shafei
- Biomedical Research Department, Military Armed Forces College of Medicine (AFCM), Cairo, Egypt
| | - Mahmoud A Ali
- Biomedical Research Department, Military Armed Forces College of Medicine (AFCM), Cairo, Egypt
| | - Hazem G Ghanem
- Undergraduate Student, Armed Forces College of Medicine, Cairo, Egypt
| | - Ahmed I Shehata
- Undergraduate Student, Armed Forces College of Medicine, Cairo, Egypt
| | | | - Hossam R Handal
- Undergraduate Student, Armed Forces College of Medicine, Cairo, Egypt
| | | | - Ahmed E Ashaal
- Undergraduate Student, Armed Forces College of Medicine, Cairo, Egypt
| | - Mazen M Ali
- Undergraduate Student, Armed Forces College of Medicine, Cairo, Egypt
| | - Amal S El-Shal
- Department of Medical Biochemistry and Molecular biology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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12
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Shafei AES, Ali MA, Ghanem HG, Shehata AI, Abdelgawad AA, Handal HR, Talaat KA, Ashaal AE, El-Shal AS. Mesenchymal stem cell therapy: A promising cell-based therapy for treatment of myocardial infarction. J Gene Med 2017; 19. [PMID: 29044850 DOI: 10.1002/jgm.2995] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 10/07/2017] [Accepted: 10/07/2017] [Indexed: 12/12/2022] Open
Abstract
For decades, mesenchymal stem (MSCs) cells have been used for cardiovascular diseases as regenerative therapy. This review is an attempt to summarize the types of MSCs involved in myocardial infarction (MI) therapy, as well as its possible mechanisms effects, especially the paracrine one in MI focusing on the studies (human and animal) conducted within the last 10 years. Recently, reports showed that MSC therapy could have infarct-limiting effects after MI in both experimental and clinical trials. In this context, various types of MSCs can help cardiac regeneration by either revitalizing the cardiac stem cells or revascularizing the arteries and veins of the heart. Furthermore, MSCs could produce paracrine growth factors that increase the survival of nearby cardiomyocytes, as well as increase angiogenesis through recruitment of stem cell from bone marrow or inducing vessel growth from existing capillaries. Recent research suggests that the paracrine effects of MSCs could be mediated by extracellular vesicles including exosomes. Exosomal microRNAs (miRNAs) released by MSCs are promising therapeutic hotspot target for MI. This could be attributed to the role of miRNA in cardiac biology, including cardiac regeneration, stem cell differentiation, apoptosis, neovascularization, cardiac contractility and cardiac remodeling. Furthermore, gene-modified MSCs could be a recent promising therapy for MI to enhance the paracrine effects of MSCs, including better homing and effective cell targeted tissue regeneration. Although MSC therapy has achieved considerable attention and progress, there are critical challenges that remains to be overcome to achieve the most effective successful cell-based therapy in MI.
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Affiliation(s)
- Ayman El-Sayed Shafei
- Biomedical Research Department, Military Armed Forces College of Medicine, Cairo, Egypt
| | - Mahmoud Ahmed Ali
- Biomedical Research Department, Military Armed Forces College of Medicine, Cairo, Egypt
| | | | | | | | | | | | | | - Amal S El-Shal
- Medical Biochemistry & Molecular Biology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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13
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Salazar BH, Hoffman KA, Reddy AK, Madala S, Birla RK. 16-Channel Flexible System to Measure Electrophysiological Properties of Bioengineered Hearts. Cardiovasc Eng Technol 2017; 9:94-104. [PMID: 29150791 DOI: 10.1007/s13239-017-0336-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 11/13/2017] [Indexed: 11/30/2022]
Abstract
As tissue engineering continues to mature, it is necessary to develop new technologies that bring insight into current paradigms and guide improvements for future experiments. To this end, we have developed a system to characterize our bioartificial heart model and compare them to functional native structures. In the present study, the hearts of adult Sprague-Dawley were decellularized resulting in a natural three-dimensional cardiac scaffold. Neonatal rat primary cardiac cells were then cultured within a complex 3D fibrin gel, forming a 3-dimensional cardiac construct, which was sutured to the acellular scaffold and suspended in media for 24-48 h. The resulting bioartificial hearts (BAHs) were then affixed with 16 electrodes, in different configurations to evaluate not only the electrocardiographic characteristics of the cultured tissues, but to also test the system's consistency. Histological evaluation showed cellularization and cardiac tissue formation. The BAHs and native hearts were then evaluated with our 16-channel flexible system to acquire the metrics associated with their respective electrophysiological properties. Time delays between the native signals were in the range of 0-95 ms. As well, color maps revealed a trend in impulse propagation throughout the native hearts. After evaluation of the normal rat QRS complex we found the average amplitude of the R-wave to be 5351.48 ± 44.92 μV and the average QRS duration was found to be 10.61 ± 0.18 ms. In contrast, BAHs exhibited more erratic and non-uniform activity that garnered no appreciable quantification. The data collected in this study proves our system's efficacy for EKG data procurement.
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Affiliation(s)
- Betsy H Salazar
- Biomedical Engineering Department, University of Houston, Houston, TX, 77204, USA.
| | | | - Anilkumar K Reddy
- Baylor College of Medicine, Houston, TX, 77030, USA.,Indus Instruments, Webster, TX, 77598, USA
| | | | - Ravi K Birla
- Biomedical Engineering Department, University of Houston, Houston, TX, 77204, USA
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14
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Blondiaux E, Pidial L, Autret G, Rahmi G, Balvay D, Audureau E, Wilhelm C, Guerin CL, Bruneval P, Silvestre JS, Menasché P, Clément O. Bone marrow-derived mesenchymal stem cell-loaded fibrin patches act as a reservoir of paracrine factors in chronic myocardial infarction. J Tissue Eng Regen Med 2017; 11:3417-3427. [DOI: 10.1002/term.2255] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 04/25/2016] [Accepted: 07/03/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Eléonore Blondiaux
- Paris Cardiovascular Research Center, INSERM U970; Université Paris Descartes, Sorbonne Paris Cité; Paris
- Radiology Department; Assistance Publique - Hôpitaux de Paris, Hôpital Trousseau, Université Pierre et Marie Curie; Paris
| | - Laetitia Pidial
- Paris Cardiovascular Research Center, INSERM U970; Université Paris Descartes, Sorbonne Paris Cité; Paris
| | - Gwennhael Autret
- Paris Cardiovascular Research Center, INSERM U970; Université Paris Descartes, Sorbonne Paris Cité; Paris
- Plateforme d'imagerie du petit animal, Université Paris Descartes, Sorbonne Paris Cité; Paris
| | - Gabriel Rahmi
- Paris Cardiovascular Research Center, INSERM U970; Université Paris Descartes, Sorbonne Paris Cité; Paris
| | - Daniel Balvay
- Paris Cardiovascular Research Center, INSERM U970; Université Paris Descartes, Sorbonne Paris Cité; Paris
- Plateforme d'imagerie du petit animal, Université Paris Descartes, Sorbonne Paris Cité; Paris
| | - Etienne Audureau
- Public Health Department; Hôpital Henri Mondor, Créteil, LIC EA4393, Assistance Publique - Hôpitaux de Paris, Université Paris Est; Créteil
| | - Claire Wilhelm
- Laboratoire matières et systèmes complexes (MSC), UMR 7057 CNRS, Université Paris-Diderot; Paris
| | - Coralie L. Guerin
- Paris Cardiovascular Research Center, INSERM U970; Université Paris Descartes, Sorbonne Paris Cité; Paris
| | - Patrick Bruneval
- Department of Pathology; Hôpital Européen Georges Pompidou, Assistance Publique - Hôpitaux de Paris; Paris
| | - Jean-Sébastien Silvestre
- Paris Cardiovascular Research Center, INSERM U970; Université Paris Descartes, Sorbonne Paris Cité; Paris
| | - Philippe Menasché
- Paris Cardiovascular Research Center, INSERM U970; Université Paris Descartes, Sorbonne Paris Cité; Paris
- Department of Cardiovascular Surgery; Assistance Publique - Hôpitaux de Paris, Hôpital Européen Georges Pompidou; Paris
| | - Olivier Clément
- Paris Cardiovascular Research Center, INSERM U970; Université Paris Descartes, Sorbonne Paris Cité; Paris
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15
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Abstract
In this Editor's Review, articles published in 2015 are organized by category and briefly summarized. We aim to provide a brief reflection of the currently available worldwide knowledge that is intended to advance and better human life while providing insight for continued application of technologies and methods of organ Replacement, Recovery, and Regeneration. As the official journal of The International Federation for Artificial Organs, The International Faculty for Artificial Organs, the International Society for Rotary Blood Pumps, the International Society for Pediatric Mechanical Cardiopulmonary Support, and the Vienna International Workshop on Functional Electrical Stimulation, Artificial Organs continues in the original mission of its founders "to foster communications in the field of artificial organs on an international level." Artificial Organs continues to publish developments and clinical applications of artificial organ technologies in this broad and expanding field of organ Replacement, Recovery, and Regeneration from all over the world. We take this time also to express our gratitude to our authors for providing their work to this journal. We offer our very special thanks to our reviewers who give so generously of their time and expertise to review, critique, and especially provide meaningful suggestions to the author's work whether eventually accepted or rejected. Without these excellent and dedicated reviewers, the quality expected from such a journal could not be possible. We also express our special thanks to our Publisher, John Wiley & Sons for their expert attention and support in the production and marketing of Artificial Organs. We look forward to reporting further advances in the coming years.
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Hogan M, Chen YT, Kolhatkar AG, Candelari CJ, Madala S, Lee TR, Birla R. Conditioning of Cardiovascular Tissue Using a Noncontact Magnetic Stretch Bioreactor with Embedded Magnetic Nanoparticles. ACS Biomater Sci Eng 2016; 2:1619-1629. [DOI: 10.1021/acsbiomaterials.6b00375] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Matthew Hogan
- Department of Biomedical
Engineering, Science and Engineering Research Center (SERC-Building
545), University of Houston, 3605 Cullen Boulevard, Room 2027, Houston, Texas 77204-5060, United States
| | - Yi-Ting Chen
- Department
of Chemistry, Science and Engineering Research Center (SERC-Building
545), University of Houston, 3605 Cullen Boulevard, Room 5004, Houston, Texas 77204-5060, United States
| | - Arati G. Kolhatkar
- Department
of Chemistry, Science and Engineering Research Center (SERC-Building
545), University of Houston, 3605 Cullen Boulevard, Room 5004, Houston, Texas 77204-5060, United States
| | - Christopher J. Candelari
- Department of Biomedical
Engineering, Science and Engineering Research Center (SERC-Building
545), University of Houston, 3605 Cullen Boulevard, Room 2027, Houston, Texas 77204-5060, United States
| | - Sridhar Madala
- Indus Instruments, 721 Tristar Drive, Webster, Texas 77598, United States
| | - T. Randall Lee
- Department
of Chemistry, Science and Engineering Research Center (SERC-Building
545), University of Houston, 3605 Cullen Boulevard, Room 5004, Houston, Texas 77204-5060, United States
| | - Ravi Birla
- Department of Biomedical
Engineering, Science and Engineering Research Center (SERC-Building
545), University of Houston, 3605 Cullen Boulevard, Room 2027, Houston, Texas 77204-5060, United States
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17
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Patel NM, Yazdi IK, Tasciotti E, Birla RK. Optimizing cell seeding and retention in a three-dimensional bioengineered cardiac ventricle: The two-stage cellularization model. Biotechnol Bioeng 2016; 113:2275-85. [PMID: 27071026 DOI: 10.1002/bit.25992] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 04/03/2016] [Accepted: 04/05/2016] [Indexed: 11/11/2022]
Abstract
Current cell seeding techniques focus on passively directing cells to a scaffold surface with the addition of dynamic culture to encourage cell permeation. In 3D tissue engineered constructs, cell retention efficiency is dependent on the cell delivery method, and biomaterial properties. Passive cell delivery relies on cell migration to the scaffold surface; biomaterial surface properties and porosity determine cell infiltration capacity. As a result, cell retention efficiencies remain low. The development of an effective two-stage cell seeding technique, coupled with perfusion culture, provides the potential to improve cellularization efficiency, and retention. This study, uses a chitosan bioengineered open ventricle (BEOV) scaffold to produce a two-stage perfusion cultured ventricle (TPCV). TPCV were fabricated by direct injection of 10 million primary rat neonatal cardiac cells, followed by wrapping of the outer scaffold surface with a 3D fibrin gel artificial heart muscle patch; TPCV were perfusion cultured for 3 days. The average biopotential output was 1.731 mV. TPCV cell retention following culture was approximately 5%. Cardiac cells were deposited on the scaffold surface and formed intercellular connections. Histological assessment displayed localized cell clusters, with some dissemination, and validated the observed presence of intercellular and gap-junction interactions. The study demonstrates initial effectiveness of our two-stage cell delivery concept, based on function and biological metrics. Biotechnol. Bioeng. 2016;113: 2275-2285. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Nikita M Patel
- Department of Biomedical Engineering, University of Houston, Houston, Texas, 77204
| | - Iman K Yazdi
- Department of Biomedical Engineering, University of Houston, Houston, Texas, 77204.,Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas, 77030
| | - Ennio Tasciotti
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas, 77030
| | - Ravi K Birla
- Department of Biomedical Engineering, University of Houston, Houston, Texas, 77204.
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18
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Abstract
There is a chronic shortage of donor hearts. The ability to fabricate complete bioartificial hearts (BAHs) may be an alternative solution. The current study describes a method to support the fabrication and culture of BAHs. Rat hearts were isolated and subjected to a detergent based decellularization protocol to remove all cellular components, leaving behind an intact extracellular matrix. Primary cardiac cells were isolated from neonatal rat hearts, and direct cell transplantation was used to populate the acellular scaffolds. Bioartificial hearts were maintained in a custom fabrication gravity fed perfusion culture system to support media delivery. The functional performance of BAHs was assessed based on left ventricle pressure and on electrocardiogram. Furthermore, BAHs were sectioned and stained for the whole heart cardiac tissue distribution and for cardiac molecules, such as α-actinin, cardiac troponin I, collagen type I, connexin 43, von Willebrand factor, and ki67. Bioartificial hearts replicated a partial subset of properties of natural rat hearts. The current study provided a method for fabrication of a BAH and revealed challenges toward BAH fabrication with functional performance metrics of natural mammalian hearts.
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19
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Kolhatkar AG, Jamison AC, Nekrashevich I, Kourentzi K, Litvinov D, Brazdeikis A, Willson RC, Randall Lee T. Enzymatic conversion of magnetic nanoparticles to a non-magnetic precipitate: a new approach to magnetic sensing. Analyst 2016; 141:5246-51. [DOI: 10.1039/c6an00709k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Magnetic sensing utilizes loss of signal via enzymatic transformation of magnetic nanoparticles (MNPs).
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Affiliation(s)
- Arati G. Kolhatkar
- Department of Chemistry and Texas Center for Superconductivity
- University of Houston
- Houston
- USA
| | - Andrew C. Jamison
- Department of Chemistry and Texas Center for Superconductivity
- University of Houston
- Houston
- USA
| | - Ivan Nekrashevich
- Department of Electrical and Computer Engineering
- University of Houston
- Houston
- USA
| | - Katerina Kourentzi
- Department of Chemical and Biomolecular Engineering
- University of Houston
- Houston
- USA
| | - Dmitri Litvinov
- Department of Chemistry and Texas Center for Superconductivity
- University of Houston
- Houston
- USA
- Department of Electrical and Computer Engineering
| | - Audrius Brazdeikis
- Department of Physics and Texas Center for Superconductivity
- University of Houston
- Houston
- USA
| | - Richard C. Willson
- Department of Chemical and Biomolecular Engineering
- University of Houston
- Houston
- USA
- Department of Biology and Biochemistry
| | - T. Randall Lee
- Department of Chemistry and Texas Center for Superconductivity
- University of Houston
- Houston
- USA
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20
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Li Y, Meng H, Liu Y, Lee BP. Fibrin gel as an injectable biodegradable scaffold and cell carrier for tissue engineering. ScientificWorldJournal 2015; 2015:685690. [PMID: 25853146 PMCID: PMC4380102 DOI: 10.1155/2015/685690] [Citation(s) in RCA: 157] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Accepted: 02/27/2015] [Indexed: 12/28/2022] Open
Abstract
Due to the increasing needs for organ transplantation and a universal shortage of donated tissues, tissue engineering emerges as a useful approach to engineer functional tissues. Although different synthetic materials have been used to fabricate tissue engineering scaffolds, they have many limitations such as the biocompatibility concerns, the inability to support cell attachment, and undesirable degradation rate. Fibrin gel, a biopolymeric material, provides numerous advantages over synthetic materials in functioning as a tissue engineering scaffold and a cell carrier. Fibrin gel exhibits excellent biocompatibility, promotes cell attachment, and can degrade in a controllable manner. Additionally, fibrin gel mimics the natural blood-clotting process and self-assembles into a polymer network. The ability for fibrin to cure in situ has been exploited to develop injectable scaffolds for the repair of damaged cardiac and cartilage tissues. Additionally, fibrin gel has been utilized as a cell carrier to protect cells from the forces during the application and cell delivery processes while enhancing the cell viability and tissue regeneration. Here, we review the recent advancement in developing fibrin-based biomaterials for the development of injectable tissue engineering scaffold and cell carriers.
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Affiliation(s)
- Yuting Li
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931, USA
| | - Hao Meng
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931, USA
| | - Yuan Liu
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931, USA
| | - Bruce P. Lee
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931, USA
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