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Hauser PV, Zhao L, Chang HM, Yanagawa N, Hamon M. In Vivo Vascularization Chamber for the Implantation of Embryonic Kidneys. Tissue Eng Part C Methods 2024; 30:63-72. [PMID: 38062758 DOI: 10.1089/ten.tec.2023.0225] [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: 01/27/2024] Open
Abstract
A major obstacle to the implantation of ex vivo engineered tissues is the incorporation of functional vascular supply to support the growth of new tissue and to minimize ischemic injury. Existing prevascularization systems, such as arteriovenous (AV) loop-based systems, require microsurgery, limiting their use to larger animals. We aimed to develop an implantable device that can be prevascularized to enable vascularization of tissues in small rodents, and test its application on the vascularization of embryonic kidneys. Implanting the chamber between the abdominal aorta and the inferior vena cava, we detected endothelial cells and vascular networks after 48 h of implantation. Loading the chamber with collagen I (C), Matrigel (M), or Matrigel + vascular endothelial growth factor) (MV) had a strong influence on vascularization speed: Chambers loaded with C took 7 days to vascularize, 4 days for chambers with M, and 2 days for chambers with MV. Implantation of E12.5 mouse embryonic kidneys into prevascularized chambers (C, MV) was followed with significant growth and ureteric branching over 22 days. In contrast, the growth of kidneys in non-prevascularized chambers was stunted. We concluded that our prevascularized chamber is a valuable tool for vascularizing implanted tissues and tissue-engineered constructs. Further optimization will be necessary to control the directional growth of vascular endothelial cells within the chamber and the vascularization grade. Impact Statement Vascularization of engineered tissue, or organoids, constructs is a major hurdle in tissue engineering. Failure of vascularization is associated with prolonged ischemia time and potential tissue damage due to hypoxic effects. The method presented, demonstrates the use of a novel chamber that allows rapid vascularization of native and engineered tissues. We hope that this technology helps to stimulate research in the field of tissue vascularization and enables researchers to generate larger engineered vascularized tissues.
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Affiliation(s)
- Peter Viktor Hauser
- Division of Research, Renal Regeneration Laboratory, VAGLAHS at Sepulveda, North Hills, California, USA
- Department of Medicine, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California, USA
| | - Lifu Zhao
- Division of Research, Renal Regeneration Laboratory, VAGLAHS at Sepulveda, North Hills, California, USA
| | - Hsiao-Min Chang
- Division of Research, Renal Regeneration Laboratory, VAGLAHS at Sepulveda, North Hills, California, USA
- Department of Medicine, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California, USA
| | - Norimoto Yanagawa
- Division of Research, Renal Regeneration Laboratory, VAGLAHS at Sepulveda, North Hills, California, USA
- Department of Medicine, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California, USA
| | - Morgan Hamon
- Division of Research, Renal Regeneration Laboratory, VAGLAHS at Sepulveda, North Hills, California, USA
- Department of Medicine, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California, USA
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Redenski I, Guo S, Machour M, Szklanny A, Landau S, Egozi D, Gabet Y, Levenberg S. Microcomputed Tomography-Based Analysis of Neovascularization within Bioengineered Vascularized Tissues. ACS Biomater Sci Eng 2022; 8:232-241. [PMID: 34905338 DOI: 10.1021/acsbiomaterials.1c01401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In the field of tissue engineering, evaluating newly formed vascular networks is considered a fundamental step in deciphering the processes underlying tissue development. Several common modalities exist to study vessel network formation and function. However, a proper methodology that allows through three-dimensional visualization of neovessels in a reproducible manner is required. Here, we describe in-depth exploration, visualization, and analysis of vessels within newly formed tissues by utilizing a contrast agent perfusion protocol and high-resolution microcomputed tomography. Bioengineered constructs consisting of porous, biocompatible, and biodegradable scaffolds are loaded with cocultures of adipose-derived microvascular endothelial cells (HAMECs) and dental pulp stem cells (DPSCs) and implanted in a rat femoral bundle model. After 14 days of in vivo maturation, we performed the optimized perfusion protocol to allow host penetrating vascular visualization and assessment within neotissues. Following high-resolution microCT scanning of DPSC:HAMEC explants, we performed the volumetric and spatial analysis of neovasculature. Eventually, the process was repeated with a previously published coculture system for prevascularization based on adipose-derived mesenchymal stromal cells (MSCs) and HAMECs. Overall, our approach allows a comprehensive understanding of vessel organization during engraftment and development of neotissues.
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Affiliation(s)
- Idan Redenski
- Department of Biomedical Engineering, Technion─Israel Institute of Technology, Haifa 3200003, Israel
| | - Shaowei Guo
- Department of Biomedical Engineering, Technion─Israel Institute of Technology, Haifa 3200003, Israel
- The First Affiliated Hospital, Shantou University Medical College, Shantou 515000, China
| | - Majd Machour
- Department of Biomedical Engineering, Technion─Israel Institute of Technology, Haifa 3200003, Israel
| | - Ariel Szklanny
- Department of Biomedical Engineering, Technion─Israel Institute of Technology, Haifa 3200003, Israel
| | - Shira Landau
- Department of Biomedical Engineering, Technion─Israel Institute of Technology, Haifa 3200003, Israel
| | - Dana Egozi
- Department of Plastic and Reconstructive Surgery, Kaplan Hospital, Rehovot and the Hebrew University, Jerusalem 9190401, Israel
| | - Yankel Gabet
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Shulamit Levenberg
- Department of Biomedical Engineering, Technion─Israel Institute of Technology, Haifa 3200003, Israel
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Wang J, Wang X, Zhen P, Fan B. [Research progress of in vivo bioreactor for bone tissue engineering]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2021; 35:627-635. [PMID: 33998218 DOI: 10.7507/1002-1892.202012083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objective To review the research progress of in vivo bioreactor (IVB) for bone tissue engineering in order to provide reference for its future research direction. Methods The literature related to IVB used in bone tissue engineering in recent years was reviewed, and the principles of IVB construction, tissue types, sites, and methods of IVB construction, as well as the advantages of IVB used in bone tissue engineering were summarized. Results IVB takes advantage of the body's ability to regenerate itself, using the body as a bioreactor to regenerate new tissues or organs at injured sites or at ectopic sites that can support the regeneration of new tissues. IVB can be constructed by tissue flap (subcutaneous pocket, muscle flap/pocket, fascia flap, periosteum flap, omentum flap/abdominal cavity) and axial vascular pedicle (axial vascular bundle, arteriovenous loop) alone or jointly. IVB is used to prefabricate vascularized tissue engineered bone that matched the shape and size of the defect. The prefabricated vascularized tissue engineered bone can be used as bone graft, pedicled bone flap, or free bone flap to repair bone defect. IVB solves the problem of insufficient vascularization in traditional bone tissue engineering to a certain extent. Conclusion IVB is a promising method for vascularized tissue engineered bone prefabrication and subsequent bone defect reconstruction, with unique advantages in the repair of large complex bone defects. However, the complexity of IVB construction and surgical complications hinder the clinical application of IVB. Researchers should aim to develop a simple, safe, and efficient IVB.
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Affiliation(s)
- Jian Wang
- First School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou Gansu, 730000, P.R.China.,Orthopaedic Center, the 940th Hospital of PLA Joint Logistics Support Force, Lanzhou Gansu, 730000, P.R.China
| | - Xiao Wang
- School of Design and Art, Lanzhou University of Technology, Lanzhou Gansu, 730000, P.R.China
| | - Ping Zhen
- Orthopaedic Center, the 940th Hospital of PLA Joint Logistics Support Force, Lanzhou Gansu, 730000, P.R.China
| | - Bo Fan
- Orthopaedic Center, the 940th Hospital of PLA Joint Logistics Support Force, Lanzhou Gansu, 730000, P.R.China
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Später T, Ampofo E, Menger MD, Laschke MW. Combining Vascularization Strategies in Tissue Engineering: The Faster Road to Success? Front Bioeng Biotechnol 2020; 8:592095. [PMID: 33364230 PMCID: PMC7752995 DOI: 10.3389/fbioe.2020.592095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 11/20/2020] [Indexed: 01/08/2023] Open
Affiliation(s)
- Thomas Später
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Emmanuel Ampofo
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Michael D Menger
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Matthias W Laschke
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
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Hernández D, Millard R, Kong AM, Burns O, Sivakumaran P, Shepherd RK, Dusting GJ, Lim SY. A Tissue Engineering Chamber for Continuous Pulsatile Electrical Stimulation of Vascularized Cardiac Tissues In Vivo. Bioelectricity 2020; 2:391-398. [PMID: 34476368 DOI: 10.1089/bioe.2020.0035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background: Cardiomyocytes derived from pluripotent stem cells are immature. Maturation of cardiomyocytes is a multifactorial dynamic process that involves various factors in vivo that cannot be fully recapitulated in vitro. Here, we report a novel tissue engineering chamber with an integrated electrical stimulator and electrodes that will allow wireless electrical stimulation of cardiac tissue in vivo. Materials and Methods: Immunocompromised rats were implanted with tissue engineering chambers containing the stimulator and electrodes, and control chambers (chambers with electrical stimulator but without the electrodes) in the contralateral limb. Each chamber contained cardiomyocytes derived from human induced pluripotent stem cells (iPSCs). After 7 days of chamber implantation, the electrical stimulators were activated for 4 h per day, for 21 consecutive days. Results: At 4 weeks postimplantation, cardiomyocytes derived from human iPSCs survived, were assembled into compact cardiac tissue, and were perfused and vascularized by the host neovessels. Conclusion: This proof-of-principle study demonstrates the biocompatibility of the tissue engineering chamber with integrated electrical stimulator and electrodes. This could be utilized to study the influence of continuous electrical stimulation on vascularized cardiac or other tissues in vivo.
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Affiliation(s)
- Damián Hernández
- O'Brien Institute Department, St Vincent's Institute of Medical Research, Fitzroy, Australia.,Department of Anatomy and Neuroscience, University of Melbourne, Melbourne, Australia
| | - Rodney Millard
- Bionics Institute, East Melbourne, Australia.,Medical Bionics Department, University of Melbourne, Melbourne, Australia
| | - Anne M Kong
- O'Brien Institute Department, St Vincent's Institute of Medical Research, Fitzroy, Australia
| | - Owen Burns
- Bionics Institute, East Melbourne, Australia
| | | | - Robert K Shepherd
- Bionics Institute, East Melbourne, Australia.,Medical Bionics Department, University of Melbourne, Melbourne, Australia
| | - Gregory J Dusting
- O'Brien Institute Department, St Vincent's Institute of Medical Research, Fitzroy, Australia
| | - Shiang Y Lim
- O'Brien Institute Department, St Vincent's Institute of Medical Research, Fitzroy, Australia.,Department of Surgery, University of Melbourne, Melbourne, Australia
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Karkan SF, Davaran S, Rahbarghazi R, Salehi R, Akbarzadeh A. Electrospun nanofibers for the fabrication of engineered vascular grafts. J Biol Eng 2019; 13:83. [PMID: 31737091 PMCID: PMC6844033 DOI: 10.1186/s13036-019-0199-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 07/28/2019] [Indexed: 12/11/2022] Open
Abstract
Attention has recently increased in the application of electrospun fibers because of their putative capability to create nanoscale platforms toward tissue engineering. To some extent, electrospun fibers are applicable to the extracellular matrix by providing a three-dimensional microenvironment in which cells could easily acquire definite functional shape and maintain the cell-to-cell connection. It is noteworthy to declare that placement in different electrospun substrates with appropriate physicochemical properties enables cells to promote their bioactivities, dynamics growth and differentiation, leading to suitable restorative effects. This review paper aims to highlight the application of biomaterials in engineered vascular grafts by using electrospun nanofibers to promote angiogenesis and neovascularization.
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Affiliation(s)
- Sonia Fathi Karkan
- Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Golgasht St, Tabriz, Iran
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Soodabeh Davaran
- Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Golgasht St, Tabriz, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Golgasht St., Tabriz, Iran
| | - Roya Salehi
- Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Golgasht St, Tabriz, Iran
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abolfazl Akbarzadeh
- Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Biocompatible Interface-Modified Tissue Engineering Chamber Reduces Capsular Contracture and Enlarges Regenerated Adipose Tissue. ACS Biomater Sci Eng 2019; 5:3440-3447. [PMID: 33405728 DOI: 10.1021/acsbiomaterials.8b00930] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Wang JH, Chen J, Kuo SM, Mitchell GM, Lim SY, Liu GS. Methods for Assessing Scaffold Vascularization In Vivo. Methods Mol Biol 2019; 1993:217-226. [PMID: 31148090 DOI: 10.1007/978-1-4939-9473-1_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The success of tissue engineering hinges on the rapid and sufficient vascularization of the neotissue. For efficient vascular network formation within three-dimensional (3D) constructs, biomaterial scaffolds that can support survival of endothelial cells as well as formation and maturation of a capillary network in vivo are highly sought after. Here, we outline a method to biofabricate 3D porous collagen scaffolds that can support extrinsic and intrinsic vascularization using two different in vivo animal models-the mouse subcutaneous implant model (extrinsic vascularization, capillary growth within the scaffold originating from host tissues outside the scaffold) and the rat tissue engineering chamber model (intrinsic vascularization, capillary growth within the scaffold derived from a centrally positioned vascular pedicle). These in vivo vascular tissue engineering approaches hold a great promise for the generation of clinically viable vascularized constructs. Moreover, the 3D collagen scaffolds can also be employed for 3D cell culture and for in vivo delivery of growth factors and cells.
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Affiliation(s)
- Jiang-Hui Wang
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, East Melbourne, VIC, Australia
- Department of Medicine, Surgery and Ophthalmology, University of Melbourne, East Melbourne, VIC, Australia
| | - Jinying Chen
- Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Shyh-Ming Kuo
- Department of Biomedical Engineering, I-Shou University, Kaohsiung, Taiwan
| | - Geraldine M Mitchell
- Department of Medicine, Surgery and Ophthalmology, University of Melbourne, East Melbourne, VIC, Australia
- O'Brien Institute Department, St Vincent's Institute of Medical Research, Fitzroy, VIC, Australia
- Faculty of Health Sciences, Australian Catholic University, Melbourne, VIC, Australia
| | - Shiang Y Lim
- Department of Medicine, Surgery and Ophthalmology, University of Melbourne, East Melbourne, VIC, Australia
- O'Brien Institute Department, St Vincent's Institute of Medical Research, Fitzroy, VIC, Australia
| | - Guei-Sheung Liu
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, East Melbourne, VIC, Australia
- Department of Medicine, Surgery and Ophthalmology, University of Melbourne, East Melbourne, VIC, Australia
- Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
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Kottamasu P, Herman I. Engineering a microcirculation for perfusion control of ex vivo-assembled organ systems: Challenges and opportunities. J Tissue Eng 2018; 9:2041731418772949. [PMID: 29780570 PMCID: PMC5952288 DOI: 10.1177/2041731418772949] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 04/04/2018] [Indexed: 01/03/2023] Open
Abstract
Donor organ shortage remains a clear problem for many end-stage organ patients around the world. The number of available donor organs pales in comparison with the number of patients in need of these organs. The field of tissue engineering proposes a plausible solution. Using stem cells, a patient's autologous cells, or allografted cells to seed-engineered scaffolds, tissue-engineered constructs can effectively supplement the donor pool and bypass other problems that arise when using donor organs, such as who receives the organ first and whether donor organ rejection may occur. However, current research methods and technologies have been unable to successfully engineer and vascularize large volume tissue constructs. This review examines the current perfusion methods for ex vivo organ systems, defines the different types of vascularization in organs, explores various strategies to vascularize ex vivo organ systems, and discusses challenges and opportunities for the field of tissue engineering.
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Affiliation(s)
| | - Ira Herman
- Tufts University School of Medicine, Boston, MA, USA
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