1
|
Mendes MC, Pereira JA, Silva AS, Mano JF. Magneto-Enzymatic Microgels for Precise Hydrogel Sculpturing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2402988. [PMID: 39139015 DOI: 10.1002/adma.202402988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 07/15/2024] [Indexed: 08/15/2024]
Abstract
The inclusion of hollow channels in tissue-engineered hydrogels is crucial for mimicking the natural physiological conditions and facilitating the delivery of nutrients and oxygen to cells. Although bio-fabrication techniques provide diverse strategies to create these channels, many require sophisticated equipment and time-consuming protocols. Herein, collagenase, a degrading agent for methacrylated gelatin hydrogels, and magnetic nanoparticles (MNPs) are combined and processed into enzymatically active spherical structures using a straightforward oil bath emulsion methodology. The generated microgels are then used to microfabricate channels within biomimetic hydrogels via a novel sculpturing approach that relied on the precise coupling of protein-enzyme pairs (for controlled local degradation) and magnetic actuation (for directional control). Results show that the sculpting velocity can be tailored by adjusting the magnetic field intensity or concentration of MNPs within the microgels. Additionally, varying the magnetic field position or microgel size generated diverse trajectories and channels of different widths. This innovative technology improves the viability of encapsulated cells through enhanced medium transport, outperforming non-sculpted hydrogels and offering new perspectives for hydrogel vascularization and drug/biomolecule administration. Ultimately, this novel concept can help design fully controlled channels in hydrogels or soft materials, even those with complex tortuosity, in a single wireless top-down biocompatible step.
Collapse
Affiliation(s)
- Maria C Mendes
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, Aveiro, 3810-193, Portugal
| | - João A Pereira
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, Aveiro, 3810-193, Portugal
| | - Ana S Silva
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, Aveiro, 3810-193, Portugal
| | - João F Mano
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, Aveiro, 3810-193, Portugal
| |
Collapse
|
2
|
Ismayilzada N, Tarar C, Dabbagh SR, Tokyay BK, Dilmani SA, Sokullu E, Abaci HE, Tasoglu S. Skin-on-a-chip technologies towards clinical translation and commercialization. Biofabrication 2024; 16:042001. [PMID: 38964314 DOI: 10.1088/1758-5090/ad5f55] [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] [Received: 09/19/2023] [Accepted: 07/04/2024] [Indexed: 07/06/2024]
Abstract
Skin is the largest organ of the human body which plays a critical role in thermoregulation, metabolism (e.g. synthesis of vitamin D), and protection of other organs from environmental threats, such as infections, microorganisms, ultraviolet radiation, and physical damage. Even though skin diseases are considered to be less fatal, the ubiquity of skin diseases and irritation caused by them highlights the importance of skin studies. Furthermore, skin is a promising means for transdermal drug delivery, which requires a thorough understanding of human skin structure. Current animal andin vitrotwo/three-dimensional skin models provide a platform for disease studies and drug testing, whereas they face challenges in the complete recapitulation of the dynamic and complex structure of actual skin tissue. One of the most effective methods for testing pharmaceuticals and modeling skin diseases are skin-on-a-chip (SoC) platforms. SoC technologies provide a non-invasive approach for examining 3D skin layers and artificially creating disease models in order to develop diagnostic or therapeutic methods. In addition, SoC models enable dynamic perfusion of culture medium with nutrients and facilitate the continuous removal of cellular waste to further mimic thein vivocondition. Here, the article reviews the most recent advances in the design and applications of SoC platforms for disease modeling as well as the analysis of drugs and cosmetics. By examining the contributions of different patents to the physiological relevance of skin models, the review underscores the significant shift towards more ethical and efficient alternatives to animal testing. Furthermore, it explores the market dynamics ofin vitroskin models and organ-on-a-chip platforms, discussing the impact of legislative changes and market demand on the development and adoption of these advanced research tools. This article also identifies the existing obstacles that hinder the advancement of SoC platforms, proposing directions for future improvements, particularly focusing on the journey towards clinical adoption.
Collapse
Affiliation(s)
- Nilufar Ismayilzada
- Department of Mechanical Engineering, Koç University, Istanbul 34450, Turkey
| | - Ceren Tarar
- Department of Mechanical Engineering, Koç University, Istanbul 34450, Turkey
| | | | - Begüm Kübra Tokyay
- Koç University Research Center for Translational Medicine, Koç University, Istanbul 34450, Turkey
| | - Sara Asghari Dilmani
- Koç University Research Center for Translational Medicine, Koç University, Istanbul 34450, Turkey
| | - Emel Sokullu
- School of Medicine, Koç University, Istanbul 34450, Turkey
| | - Hasan Erbil Abaci
- Department of Dermatology, Columbia University, New York City, NY, United States of America
| | - Savas Tasoglu
- Department of Mechanical Engineering, Koç University, Istanbul 34450, Turkey
- Boğaziçi Institute of Biomedical Engineering, Boğaziçi University, Istanbul 34684, Turkey
- Koç University Research Center for Translational Medicine, Koç University, Istanbul 34450, Turkey
- Koç University Arçelik Research Center for Creative Industries (KUAR), Koç University, Istanbul 34450, Turkey
| |
Collapse
|
3
|
Crnic A, Rohringer S, Tyschuk T, Holnthoner W. Engineering blood and lymphatic microvascular networks. Atherosclerosis 2024; 393:117458. [PMID: 38320921 DOI: 10.1016/j.atherosclerosis.2024.117458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/18/2023] [Accepted: 01/16/2024] [Indexed: 02/08/2024]
Abstract
The human vasculature plays a crucial role in the blood supply of nearly all organs as well as the drainage of the interstitial fluid. Consequently, if these physiological systems go awry, pathological changes might occur. Hence, the regeneration of existing vessels, as well as approaches to engineer artificial blood and lymphatic structures represent current challenges within the field of vascular research. In this review, we provide an overview of both the vascular blood circulation and the long-time neglected but equally important lymphatic system, with regard to their organotypic vasculature. We summarize the current knowledge within the field of vascular tissue engineering focusing on the design of co-culture systems, thereby mainly discussing suitable cell types, scaffold design and disease models. This review will mainly focus on addressing those subjects concerning atherosclerosis. Moreover, current technological approaches such as vascular organ-on-a-chip models and microfluidic devices will be discussed.
Collapse
Affiliation(s)
- Aldina Crnic
- Ludwig-Boltzmann-Institute for Traumatology, The Research Centre in Cooperation with AUVA, Donaueschingenstraße 13, 1020 Vienna, Austria; Austrian Cluster for Tissue Regeneration, Donaueschingenstraße 13, 1020 Vienna, Austria
| | - Sabrina Rohringer
- Austrian Cluster for Tissue Regeneration, Donaueschingenstraße 13, 1020 Vienna, Austria; Center for Biomedical Research and Translational Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria; Ludwig Boltzmann Institute for Cardiovascular Research, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Tatiana Tyschuk
- Ludwig-Boltzmann-Institute for Traumatology, The Research Centre in Cooperation with AUVA, Donaueschingenstraße 13, 1020 Vienna, Austria; Austrian Cluster for Tissue Regeneration, Donaueschingenstraße 13, 1020 Vienna, Austria
| | - Wolfgang Holnthoner
- Ludwig-Boltzmann-Institute for Traumatology, The Research Centre in Cooperation with AUVA, Donaueschingenstraße 13, 1020 Vienna, Austria; Austrian Cluster for Tissue Regeneration, Donaueschingenstraße 13, 1020 Vienna, Austria.
| |
Collapse
|
4
|
Leishman DJ, Oppler SH, Stone LLH, O’Brien TD, Ramachandran S, Willenberg BJ, Adams AB, Hering BJ, Graham ML. Targeted mapping and utilization of the perihepatic surface for therapeutic beta cell replacement and retrieval in diabetic non-human primates. FRONTIERS IN TRANSPLANTATION 2024; 3:1352777. [PMID: 38993753 PMCID: PMC11235263 DOI: 10.3389/frtra.2024.1352777] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 01/09/2024] [Indexed: 07/13/2024]
Abstract
Introduction Successful diabetes reversal using pancreatic islet transplantation by various groups illustrates the significant achievements made in cell-based diabetes therapy. While clinically, intraportal islet delivery is almost exclusively used, it is not without obstacles, including instant blood-mediated inflammatory reaction (IBMIR), relative hypoxia, and loss of function over time, therefore hindering long-term success. Here we demonstrate the perihepatic surface of non-human primates (NHPs) as a potential islet delivery site maximizing favorable characteristics, including proximity to a dense vascular network for adequate oxygenation while avoiding IBMIR exposure, maintenance of portal insulin delivery, and relative ease of accessibility through minimally invasive surgery or percutaneous means. In addition, we demonstrate a targeted mapping technique of the perihepatic surface, allowing for the testing of multiple experimental conditions, including a semi-synthetic hydrogel as a possible three-dimensional framework to improve islet viability. Methods Perihepatic allo-islet cell transplants were performed in immunosuppressed cynomolgus macaques using a targeted mapping technique to test multiple conditions for biocompatibility. Transplant conditions included islets or carriers (including hydrogel, autologous plasma, and media) alone or in various combinations. Necropsy was performed at day 30, and histopathology was performed to assess biocompatibility, immune response, and islet viability. Subsequently, single-injection perihepatic allo-islet transplant was performed in immunosuppressed diabetic cynomolgus macaques. Metabolic assessments were measured frequently (i.e., blood glucose, insulin, C-peptide) until final graft retrieval for histopathology. Results Targeted mapping biocompatibility studies demonstrated mild inflammatory changes with islet-plasma constructs; however, significant inflammatory cell infiltration and fibrosis were seen surrounding sites with the hydrogel carrier affecting islet viability. In diabetic NHPs, perihepatic islet transplant using an autologous plasma carrier demonstrated prolonged function up to 6 months with improvements in blood glucose, exogenous insulin requirements, and HbA1c. Histopathology of these islets was associated with mild peri-islet mononuclear cell infiltration without evidence of rejection. Discussion The perihepatic surface serves as a viable site for islet cell transplantation demonstrating sustained islet function through 6 months. The targeted mapping approach allows for the testing of multiple conditions simultaneously to evaluate immune response to biomaterials at this site. Compared to traditional intraportal injection, the perihepatic site is a minimally invasive approach that allows the possibility for graft recovery and avoids IBMIR.
Collapse
Affiliation(s)
- David J. Leishman
- Preclinical Research Center, Department of Surgery, University of Minnesota, Minneapolis, MN, United States
| | - Scott H. Oppler
- Preclinical Research Center, Department of Surgery, University of Minnesota, Minneapolis, MN, United States
| | - Laura L. Hocum Stone
- Preclinical Research Center, Department of Surgery, University of Minnesota, Minneapolis, MN, United States
| | - Timothy D. O’Brien
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN, United States
| | - Sabarinathan Ramachandran
- Preclinical Research Center, Department of Surgery, University of Minnesota, Minneapolis, MN, United States
| | - Bradley J. Willenberg
- Department of Internal Medicine, University of Central Florida College of Medicine, Orlando, FL, United States
| | - Andrew B. Adams
- Division of Transplantation, Department of Surgery, University of Minnesota, Minneapolis, MN, United States
| | - Bernhard J. Hering
- Schulze Diabetes Institute, Department of Surgery, University of Minnesota, Minneapolis, MN, United States
| | - Melanie L. Graham
- Preclinical Research Center, Department of Surgery, University of Minnesota, Minneapolis, MN, United States
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN, United States
| |
Collapse
|
5
|
Recent trends in bioartificial muscle engineering and their applications in cultured meat, biorobotic systems and biohybrid implants. Commun Biol 2022; 5:737. [PMID: 35869250 PMCID: PMC9307618 DOI: 10.1038/s42003-022-03593-5] [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: 07/20/2021] [Accepted: 06/16/2022] [Indexed: 11/09/2022] Open
Abstract
AbstractRecent advances in tissue engineering and biofabrication technology have yielded a plethora of biological tissues. Among these, engineering of bioartificial muscle stands out for its exceptional versatility and its wide range of applications. From the food industry to the technology sector and medicine, the development of this tissue has the potential to affect many different industries at once. However, to date, the biofabrication of cultured meat, biorobotic systems, and bioartificial muscle implants are still considered in isolation by individual peer groups. To establish common ground and share advances, this review outlines application-specific requirements for muscle tissue generation and provides a comprehensive overview of commonly used biofabrication strategies and current application trends. By solving the individual challenges and merging various expertise, synergetic leaps of innovation that inspire each other can be expected in all three industries in the future.
Collapse
|
6
|
Pournemati B, Tabesh H, Jenabi A, Mehdinavaz Aghdam R, Hossein Rezayan A, Poorkhalil A, Ahmadi Tafti SH, Mottaghy K. Injectable conductive nanocomposite hydrogels for cardiac tissue engineering: Focusing on carbon and metal-based nanostructures. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
7
|
Seifert A, Tylek T, Blum C, Hemmelmann N, Böttcher B, Gbureck U, Groll J. Calcium phosphate-based biomaterials trigger human macrophages to release extracellular traps. Biomaterials 2022; 285:121521. [PMID: 35523018 DOI: 10.1016/j.biomaterials.2022.121521] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 04/07/2022] [Accepted: 04/10/2022] [Indexed: 02/07/2023]
Abstract
As central part of the innate immune response, immune cells fight against invaders through various mechanisms, such as the release of extracellular traps (ETs). While this mechanism is mainly known for neutrophils in biomaterial contact, the release of macrophage extracellular traps (METs) in response to biomaterials has not yet been reported. An important application area for biomaterials is bone, where healing of defects of a critical size requires the implantation of grafts, which are often composed of calcium phosphates (CaPs). In this study, the response of human monocyte-derived macrophages in vitro to two different CaPs (α-tricalcium phosphate (α-TCP) and calcium deficient hydroxyapatite (CDHA)) as well as different pore structures was investigated. Scaffolds with anisotropic porosity were prepared by directional freezing, while samples with isotropic pore structure served as reference. It was revealed that ETs are released by human monocyte-derived macrophages in direct or indirect contact with CaP scaffolds. This was caused by mineral nanoparticles formed during incubation of α-TCP samples in culture medium supplemented with human platelet lysate, with an anisotropic pore structure attenuating MET formation. METs were significantly less pronounced or absent in association with CDHA samples. It was furthermore demonstrated that MET formation was accompanied by an increase in pro-inflammatory cytokines. Thus, this study provided the first evidence that macrophages are capable of releasing ETs in response to biomaterials.
Collapse
Affiliation(s)
- Annika Seifert
- Department of Functional Materials in Medicine and Dentistry at the Institute of Functional Materials and Biofabrication (IFB), University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Pleicherwall 2, D-97070, Würzburg, Germany
| | - Tina Tylek
- Department of Functional Materials in Medicine and Dentistry at the Institute of Functional Materials and Biofabrication (IFB), University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Pleicherwall 2, D-97070, Würzburg, Germany
| | - Carina Blum
- Department of Functional Materials in Medicine and Dentistry at the Institute of Functional Materials and Biofabrication (IFB), University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Pleicherwall 2, D-97070, Würzburg, Germany
| | - Naomi Hemmelmann
- Biocenter and Rudolf Virchow Center, University of Würzburg, Josef-Schneider-Straße 2, 97080, Würzburg, Germany
| | - Bettina Böttcher
- Biocenter and Rudolf Virchow Center, University of Würzburg, Josef-Schneider-Straße 2, 97080, Würzburg, Germany
| | - Uwe Gbureck
- Department of Functional Materials in Medicine and Dentistry at the Institute of Functional Materials and Biofabrication (IFB), University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Pleicherwall 2, D-97070, Würzburg, Germany
| | - Jürgen Groll
- Department of Functional Materials in Medicine and Dentistry at the Institute of Functional Materials and Biofabrication (IFB), University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Pleicherwall 2, D-97070, Würzburg, Germany.
| |
Collapse
|
8
|
Siemsen K, Rajput S, Rasch F, Taheri F, Adelung R, Lammerding J, Selhuber-Unkel C. Tunable 3D Hydrogel Microchannel Networks to Study Confined Mammalian Cell Migration. Adv Healthc Mater 2021; 10:e2100625. [PMID: 34668667 PMCID: PMC8743577 DOI: 10.1002/adhm.202100625] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 07/12/2021] [Indexed: 11/12/2022]
Abstract
Cells adapt and move due to chemical, physical, and mechanical cues from their microenvironment. It is therefore important to create materials that mimic human tissue physiology by surface chemistry, architecture, and dimensionality to control cells in biomedical settings. The impact of the environmental architecture is particularly relevant in the context of cancer cell metastasis, where cells migrate through small constrictions in their microenvironment to invade surrounding tissues. Here, a synthetic hydrogel scaffold with an interconnected, random, 3D microchannel network is presented that is functionalized with collagen to promote cell adhesion. It is shown that cancer cells can invade such scaffolds within days, and both the microarchitecture and stiffness of the hydrogel modulate cell invasion and nuclear dynamics of the cells. Specifically, it is found that cell migration through the microchannels is a function of hydrogel stiffness. In addition to this, it is shown that the hydrogel stiffness and confinement, influence the occurrence of nuclear envelope ruptures of cells. The tunable hydrogel microarchitecture and stiffness thus provide a novel tool to investigate cancer cell invasion as a function of the 3D microenvironment. Furthermore, the material provides a promising strategy to control cell positioning, migration, and cellular function in biological applications, such as tissue engineering.
Collapse
Affiliation(s)
- Katharina Siemsen
- Institute for Materials Science, Kiel University, Kiel, D-24143, Germany
| | - Sunil Rajput
- Institute for Molecular Systems Engineering (IMSE), Heidelberg University, Heidelberg, 69120, Germany
| | - Florian Rasch
- Institute for Materials Science, Kiel University, Kiel, D-24143, Germany
| | - Fereydoon Taheri
- Institute for Molecular Systems Engineering (IMSE), Heidelberg University, Heidelberg, 69120, Germany
| | - Rainer Adelung
- Institute for Materials Science, Kiel University, Kiel, D-24143, Germany
| | - Jan Lammerding
- Meinig School of Biomedical Engineering & Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Christine Selhuber-Unkel
- Institute for Molecular Systems Engineering (IMSE), Heidelberg University, Heidelberg, 69120, Germany
- Max Planck School Matter to Life, Jahnstraße 29, Heidelberg, 69120, Germany
| |
Collapse
|
9
|
Nguyen N, Thurgood P, Sekar NC, Chen S, Pirogova E, Peter K, Baratchi S, Khoshmanesh K. Microfluidic models of the human circulatory system: versatile platforms for exploring mechanobiology and disease modeling. Biophys Rev 2021; 13:769-786. [PMID: 34777617 DOI: 10.1007/s12551-021-00815-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 06/22/2021] [Indexed: 02/07/2023] Open
Abstract
The human circulatory system is a marvelous fluidic system, which is very sensitive to biophysical and biochemical cues. The current animal and cell culture models do not recapitulate the functional properties of the human circulatory system, limiting our ability to fully understand the complex biological processes underlying the dysfunction of this multifaceted system. In this review, we discuss the unique ability of microfluidic systems to recapitulate the biophysical, biochemical, and functional properties of the human circulatory system. We also describe the remarkable capacity of microfluidic technologies for exploring the complex mechanobiology of the cardiovascular system, mechanistic studying of cardiovascular diseases, and screening cardiovascular drugs with the additional benefit of reducing the need for animal models. We also discuss opportunities for further advancement in this exciting field.
Collapse
Affiliation(s)
- Ngan Nguyen
- School of Engineering, RMIT University, Melbourne, Australia
| | - Peter Thurgood
- School of Engineering, RMIT University, Melbourne, Australia
| | - Nadia Chandra Sekar
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Australia
| | - Sheng Chen
- School of Engineering, RMIT University, Melbourne, Australia
| | - Elena Pirogova
- School of Engineering, RMIT University, Melbourne, Australia
| | - Karlheinz Peter
- Baker Heart and Diabetes Institute, Melbourne, Australia.,Department of Cardiometabolic Health, The University of Melbourne, Parkville, Australia
| | - Sara Baratchi
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Australia
| | | |
Collapse
|
10
|
Hackethal J, Weihs AM, Karner L, Metzger M, Dungel P, Hennerbichler S, Redl H, Teuschl-Woller AH. Novel Human Placenta-Based Extract for Vascularization Strategies in Tissue Engineering. Tissue Eng Part C Methods 2021; 27:616-632. [PMID: 34714165 DOI: 10.1089/ten.tec.2021.0173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
There is critical unmet need for new vascularized tissues to support or replace injured tissues and organs. Various synthetic and natural materials were already established for use of two-dimensional (2D) and three-dimensional (3D) in vitro neovascularization assays, however, they still cannot mimic the complex functions of the sum of the extracellular matrix (ECM) in native intact tissue. Currently, this issue is only addressed by artificial products such as Matrigel™, which comprises a complex mixture of ECM proteins, extracted from animal tumor tissue. Despite its outstanding bioactivity, the isolation from tumor tissue hinders its translation into clinical applications. Since nonhuman ECM proteins may cause immune reactions, as are frequently observed in clinical trials, human ECM proteins represent the best option when aiming for clinical applications. Here, we describe an effective method of isolating a human placenta substrate (hpS) that induces the spontaneous formation of an interconnected network of green fluorescence-labeled human umbilical vein endothelial cells (gfpHUVECs) in vitro. The substrate was biochemically characterized by using a combination of bicinchoninic acid (BCA) assay, DNA, and glycosaminoglycan (GAG) content assays, sodium dodecyl sulfate/polyacrylamide gel electrophoresis (SDS-PAGE) analysis and Western blot, angiogenesis arrays, chromatographic thrombin detection, high performance liquid chromatography (HPLC)-based amino acid quantification analysis, and assessment of antimicrobial properties. 2D in vitro cell culture experiments have been performed to determine the vasculogenic potential of hpS, which demonstrated that cell networks developed on hpS show a significantly higher degree of complexity (number of tubules/junctions; total/mean tube length) when compared with Matrigel. As 3D cell culture techniques represent a more accurate representation of the in vivo condition, the substrate was 3D solidified using various natural polymers. 3D in vitro vasculogenesis assays have been performed by seeding gfpHUVECs in an hpS-fibrinogen clot. In conclusion, hpS provides a potent human/material-based alternative to xenogenic-material-based biomaterials for vascularization strategies in tissue engineering.
Collapse
Affiliation(s)
- Johannes Hackethal
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in AUVA Trauma Research Center, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Anna Maria Weihs
- Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Department of Life Science Engineering, University of Applied Sciences Technikum Wien, Vienna, Austria
| | - Lisa Karner
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in AUVA Trauma Research Center, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Magdalena Metzger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in AUVA Trauma Research Center, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Peter Dungel
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in AUVA Trauma Research Center, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Simone Hennerbichler
- Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Red Cross Blood Transfusion Service of Upper Austria, Linz, Austria
| | - Heinz Redl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in AUVA Trauma Research Center, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Andreas Herbert Teuschl-Woller
- Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Department of Life Science Engineering, University of Applied Sciences Technikum Wien, Vienna, Austria
| |
Collapse
|
11
|
Jairath G, Mal G, Gopinath D, Singh B. A holistic approach to access the viability of cultured meat: A review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.02.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
12
|
Hong S, Kang EY, Byeon J, Jung SH, Hwang C. Embossed Membranes with Vascular Patterns Guide Vascularization in a 3D Tissue Model. Polymers (Basel) 2019; 11:E792. [PMID: 31052571 PMCID: PMC6572394 DOI: 10.3390/polym11050792] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 04/26/2019] [Accepted: 04/29/2019] [Indexed: 01/12/2023] Open
Abstract
The vascularization of three-dimensional (3D) tissue constructs is necessary for transporting nutrients and oxygen to the component cells. In this study, a vacuum forming method was applied to emboss a vascular pattern on an electrospun membrane so that guided vascular structures could develop within the construct. Two- or six-layer constructs of electrospun membranes seeded with endothelial cells and pericytes were stacked and subcutaneously implanted into mice. Blood vessel formation in the implanted constructs with six alternating layers of flat membranes and membranes embossed with a blood vessel pattern was observed after two weeks of implantation. The formation of blood vessels was observed along the embossed blood vessel pattern in the structure of the embossed membrane laminated at four weeks and eight weeks. Vascular endothelial growth factor (VEGF) and angiopoietin 1 (Ang-1) were highly expressed in the vascularized structures. Therefore, we demonstrated that a structure capable of producing a desired blood vessel shape with electrospun membranes embossed with a blood vessel pattern can be manufactured, and that a variety of structures can be manufactured using electrospun membranes in the tissue engineering era.
Collapse
Affiliation(s)
- Soyoung Hong
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Korea.
| | - Eun Young Kang
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Korea.
| | - Jaehee Byeon
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Korea.
| | - Sung-Ho Jung
- Departments of Thoracic and Cardiovascular Surgery, Asan Medical Center, Seoul 05505, Korea.
| | - Changmo Hwang
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Korea.
- Department of Convergence Medicine, University of Ulsan College of Medicine & Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Korea.
| |
Collapse
|
13
|
Schneider J, Pultar M, Holnthoner W. Ex vivo engineering of blood and lymphatic microvascular networks. VASCULAR BIOLOGY 2019; 1:H17-H22. [PMID: 32923949 PMCID: PMC7439851 DOI: 10.1530/vb-19-0012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 04/08/2019] [Indexed: 12/12/2022]
Abstract
Upon implantation, engineered tissues rely on the supply with oxygen and nutrients as well as the drainage of interstitial fluid. This prerequisite still represents one of the current challenges in the engineering and regeneration of tissues. Recently, different vascularization strategies have been developed. Besides technical approaches like 3D printing or laser processing and de-/recelluarization of natural scaffolds, mainly co-cultures of endothelial cells (ECs) with supporting cell types are being used. This mini-review provides a brief overview of different co-culture systems for the engineering of blood and lymphatic microvascular networks.
Collapse
Affiliation(s)
- Jaana Schneider
- Ludwig-Boltzmann-Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Marianne Pultar
- Ludwig-Boltzmann-Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Wolfgang Holnthoner
- Ludwig-Boltzmann-Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| |
Collapse
|
14
|
Attalla R, Puersten E, Jain N, Selvaganapathy PR. 3D bioprinting of heterogeneous bi- and tri-layered hollow channels within gel scaffolds using scalable multi-axial microfluidic extrusion nozzle. Biofabrication 2018; 11:015012. [PMID: 30537688 DOI: 10.1088/1758-5090/aaf7c7] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
One of the primary focuses in recent years in tissue engineering has been the fabrication and integration of vascular structures into artificial tissue constructs. However, most available methodologies lack the ability to create multi-layered concentric conduits inside natural extracellular matrices (ECMs) and gels that replicate more accurately the hierarchical architecture of biological blood vessels. In this work, we present a new microfluidic nozzle design capable of multi-axial extrusion in order to 3D print and pattern bi- and tri-layered hollow channel structures. This nozzle allows, for the first time, for these structures to be embedded within layers of gels and ECMs in a fast, simple and low-cost manner. By varying flow rates (1-6 ml min-1), printspeeds (1-16 m min-1), and material concentration (25-175 mM and 1.5%-2.5% for calcium chloride and alginate, respectively) we are able to accurately determine the operational printing range as well as achieve a wide range of conduit dimensions (0.69-2.31 mm) that can be printed within a few seconds. Our scalable design allows for multi-axial extrusion and versatility in material incorporation in order to create heterogeneous structures. We demonstrate the ability to print distinct concentric layers of different cell types, namely endothelial cells and fibroblasts. By incorporating various layers of different cell-friendly materials (such as collagen and fibrin) alongside materials with high mechanical strength (i.e. alginate), we were able to increase long-term cell viability and growth without compromising the structural integrity. In this way, we can improve cellular adhesion in our biocompatible constructs as well as allow them to remain structurally sound. We are able to realize complex heterogeneous, hierarchical architectures that have strong potential for use not only in vascular tissue applications, but also in other artificially fabricated tubular or fiber-like structures such as skeletal muscle or nerve conduits.
Collapse
Affiliation(s)
- Rana Attalla
- School of Biomedical Engineering, McMaster University, ON, Canada
| | | | | | | |
Collapse
|
15
|
Lee J, Lee SH, Lee BK, Park SH, Cho YS, Park Y. Fabrication of Microchannels and Evaluation of Guided Vascularization in Biomimetic Hydrogels. Tissue Eng Regen Med 2018; 15:403-413. [PMID: 30603564 PMCID: PMC6171653 DOI: 10.1007/s13770-018-0130-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 05/09/2018] [Accepted: 05/29/2018] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The fabrication of microchannels in hydrogel can facilitate the perfusion of nutrients and oxygen, which leads to guidance cues for vasculogenesis. Microchannel patterning in biomimetic hydrogels is a challenging issue for tissue regeneration because of the inherent low formability of hydrogels in a complex configuration. We fabricated microchannels using wire network molding and immobilized the angiogenic factors in the hydrogel and evaluated the vasculogenesis in vitro and in vivo. METHODS Microchannels were fabricated in a hyaluronic acid-based biomimetic hydrogel by using "wire network molding" technology. Substance P was immobilized in acrylated hyaluronic acid for angiogenic cues using Michael type addition reaction. In vitro and in vivo angiogenic activities of hydrogel with microchannels were evaluated. RESULTS In vitro cell culture experiment shows that cell viability in two experimental biomimetic hydrogels (with microchannels and microchannels + SP) was higher than that of a biomimetic hydrogel without microchannels (bulk group). Evaluation on differentiation of human mesenchymal stem cells (hMSCs) in biomimetic hydrogels with fabricated microchannels shows that the differentiation of hMSC into endothelial cells was significantly increased compared with that of the bulk group. In vivo angiogenesis analysis shows that thin blood vessels of approximately 25-30 μm in diameter were observed in the microchannel group and microchannel + SP group, whereas not seen in the bulk group. CONCLUSION The strategy of fabricating microchannels in a biomimetic hydrogel and simultaneously providing a chemical cue for angiogenesis is a promising formula for large-scale tissue regeneration.
Collapse
Affiliation(s)
- Jaeyeon Lee
- Department of Biomedical Engineering, College of Medicine, Korea University, 73 Inchon-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
| | - Se-Hwan Lee
- Department of Mechanical Design Engineering, College of Engineering, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk, 54538 Republic of Korea
| | - Bu-Kyu Lee
- Department of Biomedical Engineering, Asan Medical Center, College of Medicine, Ulsan University, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505 Republic of Korea
- Department of Oral and Maxillofacial Surgery, Asan Medical Center, College of Medicine, Ulsan University, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505 Republic of Korea
| | - Sang-Hyug Park
- Department of Biomedical Engineering, Pukyong National University, 45 Yongso-ro, Nam-Gu, Busan, 48513 Republic of Korea
| | - Young-Sam Cho
- Department of Mechanical Design Engineering, College of Engineering, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk, 54538 Republic of Korea
| | - Yongdoo Park
- Department of Biomedical Engineering, College of Medicine, Korea University, 73 Inchon-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
| |
Collapse
|
16
|
Stephens N, Di Silvio L, Dunsford I, Ellis M, Glencross A, Sexton A. Bringing cultured meat to market: Technical, socio-political, and regulatory challenges in cellular agriculture. Trends Food Sci Technol 2018; 78:155-166. [PMID: 30100674 PMCID: PMC6078906 DOI: 10.1016/j.tifs.2018.04.010] [Citation(s) in RCA: 250] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 04/24/2018] [Accepted: 04/25/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Cultured meat forms part of the emerging field of cellular agriculture. Still an early stage field it seeks to deliver products traditionally made through livestock rearing in novel forms that require no, or significantly reduced, animal involvement. Key examples include cultured meat, milk, egg white and leather. Here, we focus upon cultured meat and its technical, socio-political and regulatory challenges and opportunities. SCOPE AND APPROACH The paper reports the thinking of an interdisciplinary team, all of whom have been active in the field for a number of years. It draws heavily upon the published literature, as well as our own professional experience. This includes ongoing laboratory work to produce cultured meat and over seventy interviews with experts in the area conducted in the social science work. KEY FINDINGS AND CONCLUSIONS Cultured meat is a promising, but early stage, technology with key technical challenges including cell source, culture media, mimicking the in-vivo myogenesis environment, animal-derived and synthetic materials, and bioprocessing for commercial-scale production. Analysis of the social context has too readily been reduced to ethics and consumer acceptance, and whilst these are key issues, the importance of the political and institutional forms a cultured meat industry might take must also be recognised, and how ambiguities shape any emergent regulatory system.
Collapse
Affiliation(s)
- Neil Stephens
- Social and Political Sciences, Brunel University London, Kingston Lane, Uxbridge, UB8 3PH, United Kingdom
| | - Lucy Di Silvio
- Kings College London, Floor 17, Tower Wing Guy's London, United Kingdom
| | - Illtud Dunsford
- Charcutier Ltd, Felin y Glyn Farm, Pontnewydd, Llanelli, SA15 5TL, United Kingdom
| | - Marianne Ellis
- Dept of Chemical Engineering, Claverton Down, Bath, BA2 7AY, United Kingdom
| | | | - Alexandra Sexton
- Oxford Martin School, University of Oxford, 34 Broad Street, Oxford, OX1 3BD, United Kingdom
| |
Collapse
|
17
|
Attalla R, Ling CSN, Selvaganapathy PR. Silicon Carbide Nanoparticles as an Effective Bioadhesive to Bond Collagen Containing Composite Gel Layers for Tissue Engineering Applications. Adv Healthc Mater 2018; 7. [PMID: 29360239 DOI: 10.1002/adhm.201701385] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Indexed: 01/19/2023]
Abstract
Additive manufacturing via layer-by-layer adhesive bonding holds much promise for scalable manufacturing of tissue-like constructs, specifically scaffolds with integrated vascular networks for tissue engineering applications. However, there remains a lack of effective adhesives capable of composite layer fusion without affecting the integrity of patterned features. Here, the use of silicon carbide is introduced as an effective adhesive to achieve strong bonding (0.39 ± 0.03 kPa) between hybrid hydrogel films composed of alginate and collagen. The techniques have allowed us to fabricate multilayered, heterogeneous constructs with embedded high-resolution microchannels (150 µm-1 mm) that are precisely interspaced (500-600 µm). Hydrogel layers are effectively bonded with silicon carbide nanoparticles without blocking the hollow microchannels and high cell viability (90.61 ± 3.28%) is maintained within the scaffold. Nanosilica is also tested and found to cause clogging of smaller microchannels when used for interlayer bonding, but is successfully used to attach synthetic polymers (e.g., Tygon) to the hydrogels (32.5 ± 2.12 mN bond strength). This allows us to form inlet and outlet interconnections to the gel constructs. This ability to integrate hollow channel networks into bulk soft material structures for perfusion can be useful in 3D tissue engineering applications.
Collapse
Affiliation(s)
- Rana Attalla
- School of Biomedical Engineering; McMaster University; Hamilton ON L8S 4K1 Canada
| | - Celine S. N. Ling
- School of Biomedical Engineering; McMaster University; Hamilton ON L8S 4K1 Canada
| | - Ponnambalam Ravi Selvaganapathy
- School of Biomedical Engineering; McMaster University; Hamilton ON L8S 4K1 Canada
- Department of Mechanical Engineering; McMaster University; Hamilton ON L8S 4L8 Canada
| |
Collapse
|
18
|
Abstract
Three-dimensional (3D) bioprinting enables the creation of tissue constructs with heterogeneous compositions and complex architectures. It was initially used for preparing scaffolds for bone tissue engineering. It has recently been adopted to create living tissues, such as cartilage, skin, and heart valve. To facilitate vascularization, hollow channels have been created in the hydrogels by 3D bioprinting. This review discusses the state of the art of the technology, along with a broad range of biomaterials used for 3D bioprinting. It provides an update on recent developments in bioprinting and its applications. 3D bioprinting has profound impacts on biomedical research and industry. It offers a new way to industrialize tissue biofabrication. It has great potential for regenerating tissues and organs to overcome the shortage of organ transplantation.
Collapse
Affiliation(s)
- Zengmin Xia
- 1 Department of Biomedical Engineering, Center of Biomanufacturing for Regenerative Medicine, Watson School of Engineering and Applied Science, Binghamton University, State University of New York (SUNY), Binghamton, NY, USA
| | - Sha Jin
- 1 Department of Biomedical Engineering, Center of Biomanufacturing for Regenerative Medicine, Watson School of Engineering and Applied Science, Binghamton University, State University of New York (SUNY), Binghamton, NY, USA
| | - Kaiming Ye
- 1 Department of Biomedical Engineering, Center of Biomanufacturing for Regenerative Medicine, Watson School of Engineering and Applied Science, Binghamton University, State University of New York (SUNY), Binghamton, NY, USA
| |
Collapse
|
19
|
The role of fibrinolysis inhibition in engineered vascular networks derived from endothelial cells and adipose-derived stem cells. Stem Cell Res Ther 2018; 9:35. [PMID: 29433579 PMCID: PMC5809876 DOI: 10.1186/s13287-017-0764-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 11/22/2017] [Accepted: 12/26/2017] [Indexed: 01/05/2023] Open
Abstract
Background Co-cultures of endothelial cells with mesenchymal stem cells currently represent one of the most promising approaches in providing oxygen and nutrient supply for microvascular tissue engineering. Still, to translate this model into clinics several in vitro parameters including growth medium and scaffold degradation need to be fine-tuned. Methods We recently described the co-culture of adipose-derived stem cells with endothelial cells in fibrin, resulting in capillary formation in vitro as well as their perfusion in vivo. Here, we aimed to further characterise microvascular tube formation in fibrin by determining the role of scaffold degradation, thrombin concentration and culture conditions on vascularisation. Results We observed that inhibition of cell-mediated fibrin degradation by the commonly used inhibitor aprotinin resulted in impaired vascular network formation. Aprotinin had no effect on laminin and collagen type IV deposition or formation of tube-like structures in scaffold-free co-culture, indicating that poor vascularisation of fibrin clots is primarily caused by inhibition of plasminogen-driven fibrinolysis. Co-culture in plasminogen- and factor XIII-depleted fibrin did not result in different vascular network density compared to controls. Furthermore, we demonstrate that thrombin negatively affects vascular network density at high concentrations. However, only transient activation of incorporated endothelial cells by thrombin could be observed, thus excluding a long-term inflammatory response in tissue-engineered micro-capillaries. Finally, we show that vascularisation of fibrin scaffolds in basal medium is undermined because of increased fibrinolytic activity leading to scaffold destabilisation without aprotinin. Conclusions Taken together, our data reveal a critical role of fibrinolysis inhibition in in vitro cell-mediated vascularisation of fibrin scaffolds. Electronic supplementary material The online version of this article (10.1186/s13287-017-0764-2) contains supplementary material, which is available to authorized users.
Collapse
|
20
|
Free-standing hydrogel-particle composite membrane with dynamically controlled permeability. Biointerphases 2017; 12:051002. [PMID: 29212329 DOI: 10.1116/1.4996952] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The preparation and investigation of a free-standing membrane made from a composite of thermoresponsive poly(N-isopropylacrylamide) (pNIPAAm) and polystyrene nanoparticles (PS NP) with temperature-controlled permeability is reported. The method exploits the light-induced crosslinking of the photo-reactive pNIPAAm-based polymer and mechanical reinforcement of the membrane structure by the polystyrene nanoparticles. About micrometer thick layers were either directly attached to a gold surface or prepared as free-standing layers spanning over arrays of microfluidic channels with a width of about hundred microns by using template stripping. Diffusion of liquid medium, low molecular weight molecules, and large molecular weight proteins contained in blood through the composite membrane was observed with combined surface plasmon resonance (SPR) and optical waveguide spectroscopy (OWS). The swelling ratio, permeability, and nonspecific sorption to these composite membranes were investigated by SPR and OWS as a function of molecular weight of analyte, loading of PS NP in the composite film, and temperature. The authors show successful preparation of a defect-free membrane structure that acts as a thermoresponsive filter with nanoscale pores spanning over an area of several square millimeters. This membrane can be reversibly switched to block or allow the diffusion of low mass molecules to the sensor surface by temperature-triggered swelling and collapsing of the hydrogel component. Blocking of diffusion and low unspecific sorption of proteins contained in blood serum is observed. These features make this platform interesting for potential future applications in continuous monitoring biosensors for the analysis of low molecular weight drug analytes or for advanced cell-on-chip microfluidic studies.
Collapse
|
21
|
Knezevic L, Schaupper M, Mühleder S, Schimek K, Hasenberg T, Marx U, Priglinger E, Redl H, Holnthoner W. Engineering Blood and Lymphatic Microvascular Networks in Fibrin Matrices. Front Bioeng Biotechnol 2017; 5:25. [PMID: 28459049 PMCID: PMC5394507 DOI: 10.3389/fbioe.2017.00025] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 03/28/2017] [Indexed: 01/20/2023] Open
Abstract
Vascular network engineering is essential for nutrient delivery to tissue-engineered constructs and, consequently, their survival. In addition, the functionality of tissues also depends on tissue drainage and immune cell accessibility, which are the main functions of the lymphatic system. Engineering both the blood and lymphatic microvasculature would advance the survival and functionality of tissue-engineered constructs. The aim of this study was to isolate pure populations of lymphatic endothelial cells (LEC) and blood vascular endothelial cells (BEC) from human dermal microvascular endothelial cells and to study their network formation in our previously described coculture model with adipose-derived stromal cells (ASC) in fibrin scaffolds. We could follow the network development over a period of 4 weeks by fluorescently labeling the cells. We show that LEC and BEC form separate networks, which are morphologically distinguishable and sustainable over several weeks. In addition, lymphatic network development was dependent on vascular endothelial growth factor (VEGF)-C, resulting in denser networks with increasing VEGF-C concentration. Finally, we confirm the necessity of cell–cell contact between endothelial cells and ASC for the formation of both blood and lymphatic microvascular networks. This model represents a valuable platform for in vitro drug testing and for the future in vivo studies on lymphatic and blood microvascularization.
Collapse
Affiliation(s)
- Lea Knezevic
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Department of Cardiology, Division of Heart and Lungs, University Medical Center Utrecht, Utrecht, Netherlands
| | - Mira Schaupper
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Severin Mühleder
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Katharina Schimek
- Technische Universität Berlin, Medical Biotechnology, Berlin, Germany.,TissUse GmbH, Berlin, Germany
| | | | | | - Eleni Priglinger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Heinz Redl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Wolfgang Holnthoner
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| |
Collapse
|
22
|
Komeri R, Thankam FG, Muthu J. Free radical scavenging injectable hydrogels for regenerative therapy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:100-110. [DOI: 10.1016/j.msec.2016.09.087] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 08/31/2016] [Accepted: 09/29/2016] [Indexed: 12/29/2022]
|
23
|
Strandman S, Zhu XX. Self-Healing Supramolecular Hydrogels Based on Reversible Physical Interactions. Gels 2016; 2:E16. [PMID: 30674148 PMCID: PMC6318650 DOI: 10.3390/gels2020016] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 03/23/2016] [Accepted: 03/28/2016] [Indexed: 12/26/2022] Open
Abstract
Dynamic and reversible polymer networks capable of self-healing, i.e., restoring their mechanical properties after deformation and failure, are gaining increasing research interest, as there is a continuous need towards extending the lifetime and improving the safety and performance of materials particularly in biomedical applications. Hydrogels are versatile materials that may allow self-healing through a variety of covalent and non-covalent bonding strategies. The structural recovery of physical gels has long been a topic of interest in soft materials physics and various supramolecular interactions can induce this kind of recovery. This review highlights the non-covalent strategies of building self-repairing hydrogels and the characterization of their mechanical properties. Potential applications and future prospects of these materials are also discussed.
Collapse
Affiliation(s)
- Satu Strandman
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montreal, QC H3C 3J7, Canada.
| | - X X Zhu
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montreal, QC H3C 3J7, Canada.
| |
Collapse
|
24
|
Pandolfi L, Minardi S, Taraballi F, Liu X, Ferrari M, Tasciotti E. Composite microsphere-functionalized scaffold for the controlled release of small molecules in tissue engineering. J Tissue Eng 2016; 7:2041731415624668. [PMID: 26977286 PMCID: PMC4765809 DOI: 10.1177/2041731415624668] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 11/20/2015] [Indexed: 12/17/2022] Open
Abstract
Current tissue engineering strategies focus on restoring damaged tissue architectures using biologically active scaffolds. The ideal scaffold would mimic the extracellular matrix of any tissue of interest, promoting cell proliferation and de novo extracellular matrix deposition. A plethora of techniques have been evaluated to engineer scaffolds for the controlled and targeted release of bioactive molecules to provide a functional structure for tissue growth and remodeling, as well as enhance recruitment and proliferation of autologous cells within the implant. Recently, novel approaches using small molecules, instead of growth factors, have been exploited to regulate tissue regeneration. The use of small synthetic molecules could be very advantageous because of their stability, tunability, and low cost. Herein, we propose a chitosan-gelatin scaffold functionalized with composite microspheres consisting of mesoporous silicon microparticles and poly(dl-lactic-co-glycolic acid) for the controlled release of sphingosine-1-phospate, a small molecule of interest. We characterized the platform with scanning electron microscopy, Fourier transform infrared spectroscopy, and confocal microscopy. Finally, the biocompatibility of this multiscale system was analyzed by culturing human mesenchymal stem cells onto the scaffold. The presented strategy establishes the basis of a versatile scaffold for the controlled release of small molecules and for culturing mesenchymal stem cells for regenerative medicine applications.
Collapse
Affiliation(s)
- Laura Pandolfi
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
- College of Materials Science and Engineering, University of Chinese Academy of Science, Beijing, China
| | - Silvia Minardi
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Francesca Taraballi
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Xeuwu Liu
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Mauro Ferrari
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Ennio Tasciotti
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
| |
Collapse
|
25
|
Arora A, Kothari A, Katti DS. Pore orientation mediated control of mechanical behavior of scaffolds and its application in cartilage-mimetic scaffold design. J Mech Behav Biomed Mater 2015; 51:169-83. [DOI: 10.1016/j.jmbbm.2015.06.033] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Revised: 06/25/2015] [Accepted: 06/27/2015] [Indexed: 01/30/2023]
|
26
|
Sarker M, Chen X, Schreyer D. Experimental approaches to vascularisation within tissue engineering constructs. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2015; 26:683-734. [DOI: 10.1080/09205063.2015.1059018] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|