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Moule MG, Benjamin AB, Burger ML, Herlan C, Lebedev M, Lin JS, Koster KJ, Wavare N, Adams LG, Bräse S, Munoz-Medina R, Cannon CL, Barron AE, Cirillo JD. Peptide-mimetic treatment of Pseudomonas aeruginosa in a mouse model of respiratory infection. Commun Biol 2024; 7:1033. [PMID: 39174819 PMCID: PMC11341572 DOI: 10.1038/s42003-024-06725-1] [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: 02/23/2024] [Accepted: 08/13/2024] [Indexed: 08/24/2024] Open
Abstract
The rise of drug resistance has become a global crisis, with >1 million deaths due to resistant bacterial infections each year. Pseudomonas aeruginosa, in particular, remains a serious problem with limited solutions due to complex resistance mechanisms that now lead to more than 32,000 multidrug-resistant (MDR) infections and over 2000 deaths in the U.S. annually. While the emergence of resistant bacteria has become ominously common, identification of useful new drug classes has been limited over the past over 40 years. We found that a potential novel therapeutic, the peptide-mimetic TM5, is effective at killing P. aeruginosa and displays sufficiently low toxicity in mammalian cells to allow for use in treatment of infections. Interestingly, TM5 kills P. aeruginosa more rapidly than traditional antibiotics, within 30-60 min in vitro, and is effective against a range of clinical isolates, including extensively drug resistant strains. In vivo, TM5 significantly reduced bacterial load in the lungs within 24 h compared to untreated mice and demonstrated few adverse effects. Taken together, these observations suggest that TM5 shows promise as an alternative therapy for MDR P. aeruginosa respiratory infections.
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Affiliation(s)
- Madeleine G Moule
- Department of Microbial Pathogenesis and Immunology, Texas A&M School of Medicine, Bryan, TX, USA
- Institute of Immunology & Infection Research, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Aaron B Benjamin
- Department of Microbial Pathogenesis and Immunology, Texas A&M School of Medicine, Bryan, TX, USA
| | - Melanie L Burger
- Institute of Immunology & Infection Research, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Claudine Herlan
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Maxim Lebedev
- Department of Microbial Pathogenesis and Immunology, Texas A&M School of Medicine, Bryan, TX, USA
| | - Jennifer S Lin
- Department of Bioengineering, Stanford University Schools of Medicine and of Engineering, Stanford, CA, USA
| | - Kent J Koster
- Department of Microbial Pathogenesis and Immunology, Texas A&M School of Medicine, Bryan, TX, USA
| | - Neha Wavare
- Department of Microbial Pathogenesis and Immunology, Texas A&M School of Medicine, Bryan, TX, USA
| | - Leslie G Adams
- Department of Veterinary Pathobiology, Texas A&M School of Veterinary Medicine & Biomedical Sciences, College Station, TX, USA
| | - Stefan Bräse
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Ricardo Munoz-Medina
- Department of Microbial Pathogenesis and Immunology, Texas A&M School of Medicine, Bryan, TX, USA
| | - Carolyn L Cannon
- Department of Microbial Pathogenesis and Immunology, Texas A&M School of Medicine, Bryan, TX, USA
| | - Annelise E Barron
- Department of Bioengineering, Stanford University Schools of Medicine and of Engineering, Stanford, CA, USA.
| | - Jeffrey D Cirillo
- Department of Microbial Pathogenesis and Immunology, Texas A&M School of Medicine, Bryan, TX, USA.
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2
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Grimus S, Sarangova V, Welzel PB, Ludwig B, Seissler J, Kemter E, Wolf E, Ali A. Immunoprotection Strategies in β-Cell Replacement Therapy: A Closer Look at Porcine Islet Xenotransplantation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2401385. [PMID: 38884159 PMCID: PMC11336975 DOI: 10.1002/advs.202401385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 05/28/2024] [Indexed: 06/18/2024]
Abstract
Type 1 diabetes mellitus (T1DM) is characterized by absolute insulin deficiency primarily due to autoimmune destruction of pancreatic β-cells. The prevailing treatment for T1DM involves daily subcutaneous insulin injections, but a substantial proportion of patients face challenges such as severe hypoglycemic episodes and poorly controlled hyperglycemia. For T1DM patients, a more effective therapeutic option involves the replacement of β-cells through allogeneic transplantation of either the entire pancreas or isolated pancreatic islets. Unfortunately, the scarcity of transplantable human organs has led to a growing list of patients waiting for an islet transplant. One potential alternative is xenotransplantation of porcine pancreatic islets. However, due to inter-species molecular incompatibilities, porcine tissues trigger a robust immune response in humans, leading to xenograft rejection. Several promising strategies aim to overcome this challenge and enhance the long-term survival and functionality of xenogeneic islet grafts. These strategies include the use of islets derived from genetically modified pigs, immunoisolation of islets by encapsulation in biocompatible materials, and the creation of an immunomodulatory microenvironment by co-transplanting islets with accessory cells or utilizing immunomodulatory biomaterials. This review concentrates on delineating the primary obstacles in islet xenotransplantation and elucidates the fundamental principles and recent breakthroughs aimed at addressing these challenges.
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Affiliation(s)
- Sarah Grimus
- Chair for Molecular Animal Breeding and BiotechnologyGene Center and Department of Veterinary SciencesLMU MunichD‐81377MunichGermany
- Center for Innovative Medical Models (CiMM)LMU MunichD‐85764OberschleißheimGermany
- Interfaculty Center for Endocrine and Cardiovascular Disease Network Modelling and Clinical Transfer (ICONLMU)LMU MunichD‐81377MunichGermany
| | - Victoria Sarangova
- Leibniz‐Institut für Polymerforschung Dresden e.V.Max Bergmann Center of Biomaterials DresdenD‐01069DresdenGermany
| | - Petra B. Welzel
- Leibniz‐Institut für Polymerforschung Dresden e.V.Max Bergmann Center of Biomaterials DresdenD‐01069DresdenGermany
| | - Barbara Ludwig
- Department of Medicine IIIUniversity Hospital Carl Gustav CarusTechnische Universität DresdenD‐01307DresdenGermany
- Paul Langerhans Institute Dresden of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Faculty of Medicine of the Technische Universität DresdenD‐01307DresdenGermany
- German Center for Diabetes Research (DZD e.V.)D‐85764NeuherbergGermany
- DFG‐Center for Regenerative Therapies DresdenTechnische Universität DresdenD‐01307DresdenGermany
| | - Jochen Seissler
- Medizinische Klinik und Poliklinik IVDiabetes Zentrum – Campus InnenstadtKlinikum der Ludwig‐Maximilians‐Universität MünchenD‐80336MunichGermany
| | - Elisabeth Kemter
- Chair for Molecular Animal Breeding and BiotechnologyGene Center and Department of Veterinary SciencesLMU MunichD‐81377MunichGermany
- Center for Innovative Medical Models (CiMM)LMU MunichD‐85764OberschleißheimGermany
- Interfaculty Center for Endocrine and Cardiovascular Disease Network Modelling and Clinical Transfer (ICONLMU)LMU MunichD‐81377MunichGermany
- German Center for Diabetes Research (DZD e.V.)D‐85764NeuherbergGermany
| | - Eckhard Wolf
- Chair for Molecular Animal Breeding and BiotechnologyGene Center and Department of Veterinary SciencesLMU MunichD‐81377MunichGermany
- Center for Innovative Medical Models (CiMM)LMU MunichD‐85764OberschleißheimGermany
- Interfaculty Center for Endocrine and Cardiovascular Disease Network Modelling and Clinical Transfer (ICONLMU)LMU MunichD‐81377MunichGermany
- German Center for Diabetes Research (DZD e.V.)D‐85764NeuherbergGermany
| | - Asghar Ali
- Chair for Molecular Animal Breeding and BiotechnologyGene Center and Department of Veterinary SciencesLMU MunichD‐81377MunichGermany
- Center for Innovative Medical Models (CiMM)LMU MunichD‐85764OberschleißheimGermany
- Interfaculty Center for Endocrine and Cardiovascular Disease Network Modelling and Clinical Transfer (ICONLMU)LMU MunichD‐81377MunichGermany
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3
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Whitewolf J, Highley CB. Conformal encapsulation of mammalian stem cells using modified hyaluronic acid. J Mater Chem B 2024; 12:7122-7134. [PMID: 38946474 PMCID: PMC11268093 DOI: 10.1039/d4tb00223g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 06/05/2024] [Indexed: 07/02/2024]
Abstract
Micro- and nanoencapsulation of cells has been studied as a strategy to protect cells from environmental stress and promote survival during delivery. Hydrogels used in encapsulation can be modified to influence cell behaviors and direct assembly in their surroundings. Here, we report a system that conformally encapsulated stem cells using hyaluronic acid (HA). We successfully modified HA with lipid, thiol, and maleimide pendant groups to facilitate a hydrogel system in which HA was deposited onto cell plasma membranes and subsequently crosslinked through thiol-maleimide click chemistry. We demonstrated conformal encapsulation of both neural stem cells (NSCs) and mesenchymal stromal cells (MSCs), with viability of both cell types greater than 90% after encapsulation. Additional material could be added to the conformal hydrogel through alternating addition of thiol-modified and maleimide-modified HA in a layering process. After encapsulation, we tracked egress and viability of the cells over days and observed differential responses of cell types to conformal hydrogels both according to cell type and the amount of material deposited on the cell surfaces. Through the design of the conformal hydrogels, we showed that multicellular assembly could be created in suspension and that encapsulated cells could be immobilized on surfaces. In conjunction with photolithography, conformal hydrogels enabled rapid assembly of encapsulated cells on hydrogel substrates with resolution at the scale of 100 μm.
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Affiliation(s)
- Jack Whitewolf
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22903, USA.
| | - Christopher B Highley
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22903, USA.
- Department of Chemical Engineering, University of Virginia, Charlottesville, VA 22903, USA
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4
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Luo HD, Moon H, Siren E, Clark M, Drayton M, Kizhakkedathu JN. Investigation on Adaptability and Applicability of Polymer-Mediated Cell Surface Engineering by Ligation with Transglutaminase. ACS APPLIED MATERIALS & INTERFACES 2024; 16:15893-15906. [PMID: 38512725 DOI: 10.1021/acsami.3c19202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Polymer-mediated cell surface engineering can be a powerful tool to modify the cell's biological behavior, but a simple ligation strategy must be identified. This manuscript assessed the use of transglutamination as a versatile and adaptable approach for cell surface engineering in various cellular models relevant to biomedical applications. This enzymatic approach was evaluated for its feasibility and potential for conjugating polymers to diverse cell surfaces and its biological effects. Transglutaminase-mediated ligation was successfully performed at temperatures ranging from 4 to 37 °C in as quickly as 30 min, while maintaining biocompatibility and preserving cell viability. This approach was successfully applied to nine different cell surfaces (including adherent cells and suspension cells) by optimizing the enzyme source (guinea pig liver vs microbial), buffer compositions, and incubation conditions. Finally, polymer-mediated cell surface engineering using transglutaminase exhibited immunocamouflage abilities for endothelial cells, T cells, and red blood cells by preventing the recognition of cell surface proteins by antibodies. Employing transglutaminase in polymer-mediated cell surface engineering is a promising approach to maximize its application in cell therapy and other biomedical applications.
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Affiliation(s)
- Haiming D Luo
- Centre for Blood Research & Life Sciences Institute, University of British Columbia, Vancouver, B.C. V6T 1Z3, Canada
- Department of Chemistry, University of British Columbia, Vancouver, B.C. V6T 1Z1, Canada
| | - Haisle Moon
- Centre for Blood Research & Life Sciences Institute, University of British Columbia, Vancouver, B.C. V6T 1Z3, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, B.C V6T 1Z7, Canada
| | - Erika Siren
- Centre for Blood Research & Life Sciences Institute, University of British Columbia, Vancouver, B.C. V6T 1Z3, Canada
- Department of Chemistry, University of British Columbia, Vancouver, B.C. V6T 1Z1, Canada
| | - Meredith Clark
- Centre for Blood Research & Life Sciences Institute, University of British Columbia, Vancouver, B.C. V6T 1Z3, Canada
| | - Matthew Drayton
- Centre for Blood Research & Life Sciences Institute, University of British Columbia, Vancouver, B.C. V6T 1Z3, Canada
| | - Jayachandran N Kizhakkedathu
- Centre for Blood Research & Life Sciences Institute, University of British Columbia, Vancouver, B.C. V6T 1Z3, Canada
- Department of Chemistry, University of British Columbia, Vancouver, B.C. V6T 1Z1, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, B.C V6T 1Z7, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, B.C. V6T 2B9, Canada
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5
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Vandishi AK, Esmaeili A, Taghipour N. The promising prospect of human hair follicle regeneration in the shadow of new tissue engineering strategies. Tissue Cell 2024; 87:102338. [PMID: 38428370 DOI: 10.1016/j.tice.2024.102338] [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: 12/05/2023] [Revised: 02/11/2024] [Accepted: 02/22/2024] [Indexed: 03/03/2024]
Abstract
Hair loss disorder (alopecia) affects numerous people around the world. The low effectiveness and numerous side effects of common treatments have prompted researchers to investigate alternative and effective solutions. Hair follicle (HF) bioengineering is the knowledge of using hair-inductive (trichogenic) cells. Most bioengineering-based approaches focus on regenerating folliculogenesis through manipulation of regulators of physical/molecular properties in the HF niche. Despite the high potential of cell therapy, no cell product has been produced for effective treatment in the field of hair regeneration. This problem shows the challenges in the functionality of cultured human hair cells. To achieve this goal, research and development of new and practical approaches, technologies and biomaterials are needed. Based on recent advances in the field, this review evaluates emerging HF bioengineering strategies and the future prospects for the field of tissue engineering and successful HF regeneration.
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Affiliation(s)
- Arezoo Karami Vandishi
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Esmaeili
- Student Research Committee, Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Niloofar Taghipour
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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6
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Kioulaphides S, García AJ. Encapsulation and immune protection for type 1 diabetes cell therapy. Adv Drug Deliv Rev 2024; 207:115205. [PMID: 38360355 PMCID: PMC10948298 DOI: 10.1016/j.addr.2024.115205] [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: 09/30/2023] [Revised: 01/20/2024] [Accepted: 02/07/2024] [Indexed: 02/17/2024]
Abstract
Type 1 Diabetes (T1D) involves the autoimmune destruction of insulin-producing β-cells in the pancreas. Exogenous insulin injections are the current therapy but are user-dependent and cannot fully recapitulate physiological insulin secretion dynamics. Since the emergence of allogeneic cell therapy for T1D, the Edmonton Protocol has been the most promising immunosuppression protocol for cadaveric islet transplantation, but the lack of donor islets, poor cell engraftment, and required chronic immunosuppression have limited its application as a therapy for T1D. Encapsulation in biomaterials on the nano-, micro-, and macro-scale offers the potential to integrate islets with the host and protect them from immune responses. This method can be applied to different cell types, including cadaveric, porcine, and stem cell-derived islets, mitigating the issue of a lack of donor cells. This review covers progress in the efforts to integrate insulin-producing cells from multiple sources to T1D patients as a form of cell therapy.
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Affiliation(s)
- Sophia Kioulaphides
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA 30332, USA
| | - Andrés J García
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
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7
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Borges J, Zeng J, Liu XQ, Chang H, Monge C, Garot C, Ren K, Machillot P, Vrana NE, Lavalle P, Akagi T, Matsusaki M, Ji J, Akashi M, Mano JF, Gribova V, Picart C. Recent Developments in Layer-by-Layer Assembly for Drug Delivery and Tissue Engineering Applications. Adv Healthc Mater 2024; 13:e2302713. [PMID: 38116714 PMCID: PMC11469081 DOI: 10.1002/adhm.202302713] [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: 08/17/2023] [Revised: 11/27/2023] [Indexed: 12/21/2023]
Abstract
Surfaces with biological functionalities are of great interest for biomaterials, tissue engineering, biophysics, and for controlling biological processes. The layer-by-layer (LbL) assembly is a highly versatile methodology introduced 30 years ago, which consists of assembling complementary polyelectrolytes or biomolecules in a stepwise manner to form thin self-assembled films. In view of its simplicity, compatibility with biological molecules, and adaptability to any kind of supporting material carrier, this technology has undergone major developments over the past decades. Specific applications have emerged in different biomedical fields owing to the possibility to load or immobilize biomolecules with preserved bioactivity, to use an extremely broad range of biomolecules and supporting carriers, and to modify the film's mechanical properties via crosslinking. In this review, the focus is on the recent developments regarding LbL films formed as 2D or 3D objects for applications in drug delivery and tissue engineering. Possible applications in the fields of vaccinology, 3D biomimetic tissue models, as well as bone and cardiovascular tissue engineering are highlighted. In addition, the most recent technological developments in the field of film construction, such as high-content liquid handling or machine learning, which are expected to open new perspectives in the future developments of LbL, are presented.
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Grants
- GA259370 ERC "BIOMIM"
- GA692924 ERC "BioactiveCoatings"
- GA790435 ERC "Regenerbone"
- ANR-17-CE13-022 Agence Nationale de la Recherche "CODECIDE", "OBOE", "BuccaVac"
- ANR-18-CE17-0016 Agence Nationale de la Recherche "CODECIDE", "OBOE", "BuccaVac"
- 192974 Agence Nationale de la Recherche "CODECIDE", "OBOE", "BuccaVac"
- ANR-20-CE19-022 BIOFISS Agence Nationale de la Recherche "CODECIDE", "OBOE", "BuccaVac"
- ANR22-CE19-0024 SAFEST Agence Nationale de la Recherche "CODECIDE", "OBOE", "BuccaVac"
- DOS0062033/0 FUI-BPI France
- 883370 European Research Council "REBORN"
- 2020.00758.CEECIND Portuguese Foundation for Science and Technology
- UIDB/50011/2020,UIDP/50011/2020,LA/P/0006/2020 FCT/MCTES (PIDDAC)
- 751061 European Union's Horizon 2020 "PolyVac"
- 11623 Sidaction
- 20H00665 JSPS Grant-in-Aid for Scientific Research
- 3981662 BPI France Aide Deep Tech programme
- ECTZ60600 Agence Nationale de Recherches sur le Sida et les Hépatites Virales
- 101079482 HORIZON EUROPE Framework Programme "SUPRALIFE"
- 101058554 Horizon Europe EIC Accelerator "SPARTHACUS"
- Sidaction
- Agence Nationale de Recherches sur le Sida et les Hépatites Virales
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Affiliation(s)
- João Borges
- CICECO – Aveiro Institute of MaterialsDepartment of ChemistryUniversity of AveiroCampus Universitário de SantiagoAveiro3810‐193Portugal
| | - Jinfeng Zeng
- Division of Applied ChemistryGraduate School of EngineeringOsaka University2‐1 YamadaokaSuitaOsaka565–0871Japan
| | - Xi Qiu Liu
- School of PharmacyTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China
| | - Hao Chang
- Hangzhou Institute of MedicineChinese Academy of SciencesHangzhouZhejiang310022China
| | - Claire Monge
- Laboratory of Tissue Biology and Therapeutic Engineering (LBTI)UMR5305 CNRS/Universite Claude Bernard Lyon 17 Passage du VercorsLyon69367France
| | - Charlotte Garot
- Université de Grenoble AlpesCEAINSERM U1292 BiosantéCNRS EMR 5000 Biomimetism and Regenerative Medicine (BRM)17 avenue des MartyrsGrenobleF‐38054France
| | - Ke‐feng Ren
- Department of Polymer Science and EngineeringZhejiang UniversityHangzhou310027China
| | - Paul Machillot
- Université de Grenoble AlpesCEAINSERM U1292 BiosantéCNRS EMR 5000 Biomimetism and Regenerative Medicine (BRM)17 avenue des MartyrsGrenobleF‐38054France
| | - Nihal E. Vrana
- SPARTHA Medical1 Rue Eugène BoeckelStrasbourg67000France
| | - Philippe Lavalle
- SPARTHA Medical1 Rue Eugène BoeckelStrasbourg67000France
- Institut National de la Santé et de la Recherche MédicaleInserm UMR_S 1121 Biomaterials and BioengineeringCentre de Recherche en Biomédecine de Strasbourg1 rue Eugène BoeckelStrasbourg67000France
- Université de StrasbourgFaculté de Chirurgie Dentaire1 place de l'HôpitalStrasbourg67000France
| | - Takami Akagi
- Building Block Science Joint Research ChairGraduate School of Frontier BiosciencesOsaka University1–3 YamadaokaSuitaOsaka565–0871Japan
| | - Michiya Matsusaki
- Division of Applied ChemistryGraduate School of EngineeringOsaka University2‐1 YamadaokaSuitaOsaka565–0871Japan
| | - Jian Ji
- Department of Polymer Science and EngineeringZhejiang UniversityHangzhou310027China
| | - Mitsuru Akashi
- Building Block Science Joint Research ChairGraduate School of Frontier BiosciencesOsaka University1–3 YamadaokaSuitaOsaka565–0871Japan
| | - João F. Mano
- CICECO – Aveiro Institute of MaterialsDepartment of ChemistryUniversity of AveiroCampus Universitário de SantiagoAveiro3810‐193Portugal
| | - Varvara Gribova
- Institut National de la Santé et de la Recherche MédicaleInserm UMR_S 1121 Biomaterials and BioengineeringCentre de Recherche en Biomédecine de Strasbourg1 rue Eugène BoeckelStrasbourg67000France
- Université de StrasbourgFaculté de Chirurgie Dentaire1 place de l'HôpitalStrasbourg67000France
| | - Catherine Picart
- Université de Grenoble AlpesCEAINSERM U1292 BiosantéCNRS EMR 5000 Biomimetism and Regenerative Medicine (BRM)17 avenue des MartyrsGrenobleF‐38054France
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Yang H, Yao L, Wang Y, Chen G, Chen H. Advancing cell surface modification in mammalian cells with synthetic molecules. Chem Sci 2023; 14:13325-13345. [PMID: 38033886 PMCID: PMC10685406 DOI: 10.1039/d3sc04597h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023] Open
Abstract
Biological cells, being the fundamental entities of life, are widely acknowledged as intricate living machines. The manipulation of cell surfaces has emerged as a progressively significant domain of investigation and advancement in recent times. Particularly, the alteration of cell surfaces using meticulously crafted and thoroughly characterized synthesized molecules has proven to be an efficacious means of introducing innovative functionalities or manipulating cells. Within this realm, a diverse array of elegant and robust strategies have been recently devised, including the bioorthogonal strategy, which enables selective modification. This review offers a comprehensive survey of recent advancements in the modification of mammalian cell surfaces through the use of synthetic molecules. It explores a range of strategies, encompassing chemical covalent modifications, physical alterations, and bioorthogonal approaches. The review concludes by addressing the present challenges and potential future opportunities in this rapidly expanding field.
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Affiliation(s)
- He Yang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University 199 Ren'ai Road Suzhou 215123 Jiangsu P. R. China
| | - Lihua Yao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University 199 Ren'ai Road Suzhou 215123 Jiangsu P. R. China
| | - Yichen Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University 199 Ren'ai Road Suzhou 215123 Jiangsu P. R. China
| | - Gaojian Chen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University 199 Ren'ai Road Suzhou 215123 Jiangsu P. R. China
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University Suzhou 215006 Jiangsu P. R. China
| | - Hong Chen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University 199 Ren'ai Road Suzhou 215123 Jiangsu P. R. China
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9
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Moule MG, Benjamin AB, Buger ML, Herlan C, Lebedev M, Lin JS, Koster KJ, Wavare N, Adams LG, Bräse S, Barron AE, Cirillo JD. Peptide-mimetic treatment of Pseudomonas aeruginosa in a mouse model of respiratory infection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.30.564794. [PMID: 37961726 PMCID: PMC10634950 DOI: 10.1101/2023.10.30.564794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
The rise of drug resistance has become a global crisis, with >1 million deaths due to resistant bacterial infections each year. Pseudomonas aeruginosa, in particular, remains a serious problem with limited solutions due to complex resistance mechanisms that now lead to more than 32,000 multidrug-resistant (MDR) infections and over 2,000 deaths annually. While the emergence of resistant bacteria has become concerningly common, identification of useful new drug classes has been limited over the past 40+ years. We found that a potential novel therapeutic, the peptide-mimetic TM5, is effective at killing P. aeruginosa and displays sufficiently low toxicity for mammalian cells to allow for use in treatment of infections. Interestingly, TM5 kills P. aeruginosa more rapidly than traditional antibiotics, within 30-60 minutes in vitro , and is effective against a range of clinical isolates. In vivo , TM5 significantly reduced bacterial load in the lungs within 24 hours compared to untreated mice and demonstrated few adverse effects. Taken together, these observations suggest that TM5 shows promise as an alternative therapy for MDR P. aeruginosa respiratory infections.
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10
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Farooqi M, Kang CU, Choi KH. Organ-on-Chip: Advancing Nutraceutical Testing for Improved Health Outcomes. ACS OMEGA 2023; 8:31632-31647. [PMID: 37692213 PMCID: PMC10483668 DOI: 10.1021/acsomega.3c03155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 08/08/2023] [Indexed: 09/12/2023]
Abstract
The recent global wave of organic food consumption and the vitality of nutraceuticals for human health benefits has driven the need for applying scientific methods for phytochemical testing. Advanced in vitro models with greater physiological relevance than conventional in vitro models are required to evaluate the potential benefits and toxicity of nutraceuticals. Organ-on-chip (OOC) models have emerged as a promising alternative to traditional in vitro models and animal testing due to their ability to mimic organ pathophysiology. Numerous studies have demonstrated the effectiveness of OOC models in identifying pharmaceutically relevant compounds and accurately assessing compound-induced toxicity. This review examines the utility of traditional in vitro nutraceutical testing models and discusses the potential of OOC technology as a preclinical testing tool to examine the biomedical potential of nutraceuticals by reducing the need for animal testing. Exploring the capabilities of OOC models in carrying out plant-based bioactive compounds can significantly contribute to the authentication of nutraceuticals and drug discovery and validate phytochemicals medicinal characteristics. Overall, OOC models can facilitate a more systematic and efficient assessment of nutraceutical compounds while overcoming the limitations of current traditional in vitro models.
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Affiliation(s)
- Muhammad
Awais Farooqi
- Department of Mechatronics
Engineering, Jeju National University, Jeju, Jeju-do 690756, Republic
of Korea
| | - Chul-Ung Kang
- Department of Mechatronics
Engineering, Jeju National University, Jeju, Jeju-do 690756, Republic
of Korea
| | - Kyung Hyun Choi
- Department of Mechatronics
Engineering, Jeju National University, Jeju, Jeju-do 690756, Republic
of Korea
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Jeong JH, Park KN, Kim JH, Noh K, Hur SS, Kim Y, Hong M, Chung JC, Park JH, Lee J, Son YI, Lee JH, Kim SH, Hwang Y. Self-organized insulin-producing β-cells differentiated from human omentum-derived stem cells and their in vivo therapeutic potential. Biomater Res 2023; 27:82. [PMID: 37644502 PMCID: PMC10466773 DOI: 10.1186/s40824-023-00419-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 08/17/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND Human omentum-derived mesenchymal stem cells (hO-MSCs) possess great potential to differentiate into multiple lineages and have self-renewal capacity, allowing them to be utilized as patient-specific cell-based therapeutics. Although the use of various stem cell-derived β-cells has been proposed as a novel approach for treating diabetes mellitus, developing an efficient method to establish highly functional β-cells remains challenging. METHODS We aimed to develop a novel cell culture platform that utilizes a fibroblast growth factor 2 (FGF2)-immobilized matrix to regulate the adhesion and differentiation of hO-MSCs into insulin-producing β-cells via cell-matrix/cell-cell interactions. In our study, we evaluated the in vitro differentiation potential of hO-MSCs cultured on an FGF2-immobilized matrix and a round-bottom plate (RBP). Further, the in vivo therapeutic efficacy of the β-cells transplanted into kidney capsules was evaluated using animal models with streptozotocin (STZ)-induced diabetes. RESULTS Our findings demonstrated that cells cultured on an FGF2-immobilized matrix could self-organize into insulin-producing β-cell progenitors, as evident from the upregulation of pancreatic β-cell-specific markers (PDX-1, Insulin, and Glut-2). Moreover, we observed significant upregulation of heparan sulfate proteoglycan, gap junction proteins (Cx36 and Cx43), and cell adhesion molecules (E-cadherin and Ncam1) in cells cultured on the FGF2-immobilized matrix. In addition, in vivo transplantation of differentiated β-cells into animal models of STZ-induced diabetes revealed their survival and engraftment as well as glucose-sensitive production of insulin within the host microenvironment, at over 4 weeks after transplantation. CONCLUSIONS Our findings suggest that the FGF2-immobilized matrix can support initial cell adhesion, maturation, and glucose-stimulated insulin secretion within the host microenvironment. Such a cell culture platform can offer novel strategies to obtain functional pancreatic β-cells from patient-specific cell sources, ultimately enabling better treatment for diabetes mellitus.
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Affiliation(s)
- Ji Hoon Jeong
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea
- Department of Integrated Biomedical Science, Soonchunhyang University, Asan, Chungnam-Do, 31538, Republic of Korea
| | - Ki Nam Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, 14584, Republic of Korea
| | - Joo Hyun Kim
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea
- Department of Otorhinolaryngology-Head and Neck Surgery, Soonchunhyang University Cheonan Hospital, Cheonan, 31151, Republic of Korea
| | - KyungMu Noh
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea
- Department of Integrated Biomedical Science, Soonchunhyang University, Asan, Chungnam-Do, 31538, Republic of Korea
| | - Sung Sik Hur
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea
| | - Yunhye Kim
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea
- Department of Integrated Biomedical Science, Soonchunhyang University, Asan, Chungnam-Do, 31538, Republic of Korea
| | - Moonju Hong
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea
| | - Jun Chul Chung
- Department of Surgery, Soonchunhyang University Bucheon Hospital, Bucheon, 14584, Republic of Korea
| | - Jae Hong Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Soonchunhyang University Cheonan Hospital, Cheonan, 31151, Republic of Korea
| | - Jongsoon Lee
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea
- Department of Integrated Biomedical Science, Soonchunhyang University, Asan, Chungnam-Do, 31538, Republic of Korea
| | - Young-Ik Son
- Department of Otorhinolaryngology-Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, Republic of Korea
| | - Ju Hun Lee
- Department of Bionano Engineering, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan, 15588, Republic of Korea.
| | - Sang-Heon Kim
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea.
- Department of Bio-Med Engineering, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea.
| | - Yongsung Hwang
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, Chungnam-Do, 31151, Republic of Korea.
- Department of Integrated Biomedical Science, Soonchunhyang University, Asan, Chungnam-Do, 31538, Republic of Korea.
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Bai X, Wang D, Wang B, Zhang X, Bai Y, Zhang X, Tian R, Li C, Yi Q, Cheng Y, He S. Staphylococcal protein A-modified hydrogel facilitates in situ immunomodulation by capturing anti-HMGB1 for islet grafts. Acta Biomater 2023; 166:95-108. [PMID: 37150280 DOI: 10.1016/j.actbio.2023.05.008] [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: 01/09/2023] [Revised: 04/28/2023] [Accepted: 05/02/2023] [Indexed: 05/09/2023]
Abstract
Islet transplantation is regarded as the most promising therapy for type 1 diabetes. However, both hypoxia and immune attack impair the grafted islets after transplantation, eventually failing the islet graft. Although many studies showed that biomaterials with nanoscale pores, like hydrogels, could protect islets from immune cells, the pores on biomaterials inhibited vascular endothelial cells (VECs) to creep in, which resulted in poor revascularization. Thus, a hydrogel device that can facilitate in situ immune modulations without the cost of poor revascularization should be put forward. Accordingly, we designed a spA-modified hydrogel capturing anti-HMGB1 mAB (mAB-spA Gel): the Staphylococcus aureus protein A (spA) was conjugated on the network of hydrogel to capture anti-HMGB1mAB which can inactivate immune cells, while the pore sizes of the hydrogel were more than 100μm which allows vascular endothelial cells (VECs) to creep in. In this study, we screened the optimal spA concentration in mAB-spA Gel according to the physical properties and antibody binding capability, then demonstrated that it could facilitate in situ immunomodulation without decreasing the vessel reconstruction in vitro. Further, we transplanted islet graft in vivo and showed that the survival of islets was elongated. In conclusion, mAB-spA Gel provided an alternative islet encapsulation strategy for type 1 diabetes. STATEMENT OF SIGNIFICANCE: Although various studies have shown that the backbone of the hydrogels can isolate islets grafts from immune cells and the survival of the islets can be prolonged by this way, it is also reported that when the pore size of the backbone is too small the revascularization will be adversely affected. According to this point, it is hard to adjust hydrogel's pore size to protect the islets from the immune attack while allowing endothelial vascular cells to creep in. To solve this dilemma, we designed an immunomodulatory hydrogel inhibiting the activation of T cells by immunosuppressive IgGs instead of the backbone network, so the hydrogel can prolong the survival of islets without the sacrifice of revascularization.
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Affiliation(s)
- Xue Bai
- Department of Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, P.R. China; Chongqing Key Laboratory of Basic and Translational Research of Tumor Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Dan Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Bin Wang
- Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Xiao Zhang
- Department of Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, P.R. China; Chongqing Key Laboratory of Basic and Translational Research of Tumor Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Yan Bai
- School of Pharmacy, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Xinying Zhang
- Department of Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, P.R. China; Chongqing Key Laboratory of Basic and Translational Research of Tumor Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Ruoyuan Tian
- Department of Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, P.R. China; Chongqing Key Laboratory of Basic and Translational Research of Tumor Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Caihua Li
- Department of Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, P.R. China; Chongqing Key Laboratory of Basic and Translational Research of Tumor Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Qiying Yi
- Laboratory Animal Center, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Yao Cheng
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Sirong He
- Department of Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, P.R. China; Chongqing Key Laboratory of Basic and Translational Research of Tumor Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, P.R. China.
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13
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Qin T, Smink AM, de Vos P. Enhancing longevity of immunoisolated pancreatic islet grafts by modifying both the intracapsular and extracapsular environment. Acta Biomater 2023:S1742-7061(23)00362-8. [PMID: 37392934 DOI: 10.1016/j.actbio.2023.06.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/02/2023] [Accepted: 06/26/2023] [Indexed: 07/03/2023]
Abstract
Type 1 diabetes mellitus (T1DM) is a chronic metabolic disease characterized by autoimmune destruction of pancreatic β cells. Transplantation of immunoisolated pancreatic islets might treat T1DM in the absence of chronic immunosuppression. Important advances have been made in the past decade as capsules can be produced that provoke minimal to no foreign body response after implantation. However, graft survival is still limited as islet dysfunction may occur due to chronic damage to islets during islet isolation, immune responses induced by inflammatory cells, and nutritional issues for encapsulated cells. This review summarizes the current challenges for promoting longevity of grafts. Possible strategies for improving islet graft longevity are also discussed, including supplementation of the intracapsular milieu with essential survival factors, promotion of vascularization and oxygenation near capsules, modulation of biomaterials, and co-transplantation of accessory cells. Current insight is that both the intracapsular as well as the extracapsular properties should be improved to achieve long-term survival of islet-tissue. Some of these approaches reproducibly induce normoglycemia for more than a year in rodents. Further development of the technology requires collective research efforts in material science, immunology, and endocrinology. STATEMENT OF SIGNIFICANCE: Islet immunoisolation allows for transplantation of insulin producing cells in absence of immunosuppression and might facilitate the use of xenogeneic cell sources or grafting of cells obtained from replenishable cell sources. However, a major challenge to date is to create a microenvironment that supports long-term graft survival. This review provides a comprehensive overview of the currently identified factors that have been demonstrated to be involved in either stimulating or reducing islet graft survival in immunoisolating devices and discussed current strategies to enhance the longevity of encapsulated islet grafts as treatment for type 1 diabetes. Although significant challenges remain, interdisciplinary collaboration across fields may overcome obstacles and facilitate the translation of encapsulated cell therapy from the laboratory to clinical application.
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Affiliation(s)
- Tian Qin
- Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen and University Medical Center Groningen, Hanzeplein 1, EA 11, 9713 GZ, Groningen, The Netherlands.
| | - Alexandra M Smink
- Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen and University Medical Center Groningen, Hanzeplein 1, EA 11, 9713 GZ, Groningen, The Netherlands
| | - Paul de Vos
- Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen and University Medical Center Groningen, Hanzeplein 1, EA 11, 9713 GZ, Groningen, The Netherlands
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14
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Tsunoi Y, Takayama I, Kondo N, Nagano Y, Miyazaki H, Kawauchi S, Akashi M, Saitoh D, Terakawa M, Sato S. Cultivation and Transplantation of Three-Dimensional Skins with Laser-Processed Biodegradable Membranes. Tissue Eng Part A 2023; 29:344-353. [PMID: 37053095 DOI: 10.1089/ten.tea.2022.0208] [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] [Indexed: 04/14/2023] Open
Abstract
For the treatment of irreversible, extensive skin damage, artificial skins or cultured skins are useful when allogeneic skins are unavailable. However, most of them lack vasculature, causing delayed perfusion and hence delay or failure in engraftment of the tissues. We previously developed a prevascularized three-dimensional (3D) cultured skin based on the layer-by-layer cell coating technique (LbL-3D skin), in which cells are seeded and laminated on a porous polymer membrane for medium supply to the thick cultured tissue. Recent animal studies have demonstrated that LbL-3D skin can achieve rapid perfusion and high graft survival after transplantation. However, there were practical issues with separating LbL-3D skins from the membranes before transplantation and the handling separated LbL-3D skins for transplantation. To address these problems, in this study, we examined the use of biodegradable porous polymer membranes that enabled the transplantation of LbL-3D skins together with the membranes, which could be decomposed after transplantation. Thin films made from poly (lactic-co-glycolic acid) (PLGA) were irradiated with femtosecond laser pulses to create micro through-holes, producing porous membranes. We designed and fabricated culture inserts with the PLGA membranes and cultivated LbL-3D skins with 2 × 106 neonatal normal human dermal fibroblasts and 1 × 104 human umbilical vein endothelial cells in the dermis of 20 cell layers and 1 × 105 neonatal human epidermal keratinocytes in the epidermis. Histological analyses revealed that the skins cultured on the PLGA membranes had thickness of about 400 μm and that there were no defects in the quality of the skins cultured on the PLGA membranes when compared with those cultured on the conventional (nonbiodegradable) commercial membranes. The cultured LbL-3D skins were then transplanted together with the PLGA membranes onto full-thickness excisional wounds in mice. At 7 days posttransplantation onto a mouse, the tissues above and below the membrane were connected through the holes with collagen-positive fibers that appeared to migrate from both the host and donor sides, and favorable reepithelization was observed throughout the transplanted skin region. However, insufficient engraftment was observed in some cases. Thus, further optimization of the membrane conditions would be needed to improve the transplantation outcome.
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Affiliation(s)
- Yasuyuki Tsunoi
- Division of Bioinformation and Therapeutic Systems, National Defense Medical College Research Institute, Tokorozawa, Japan
| | - Izumi Takayama
- Center for Electronics and Electrical Engineering, School of Integrated Design Engineering, Keio University, Yokohama, Japan
| | - Naonari Kondo
- Center for Electronics and Electrical Engineering, School of Integrated Design Engineering, Keio University, Yokohama, Japan
| | - Yo Nagano
- Center for Electronics and Electrical Engineering, School of Integrated Design Engineering, Keio University, Yokohama, Japan
| | - Hiromi Miyazaki
- Division of Biomedical Engineering, National Defense Medical College Research Institute, Tokorozawa, Japan
| | - Satoko Kawauchi
- Division of Bioinformation and Therapeutic Systems, National Defense Medical College Research Institute, Tokorozawa, Japan
| | - Mitsuru Akashi
- Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
| | - Daizoh Saitoh
- Division of Basic Traumatology, National Defense Medical College Research Institute, Tokorozawa, Japan
| | - Mitsuhiro Terakawa
- Center for Electronics and Electrical Engineering, School of Integrated Design Engineering, Keio University, Yokohama, Japan
- Department of Electronics and Electrical Engineering, Keio University, Yokohama, Japan
| | - Shunichi Sato
- Division of Bioinformation and Therapeutic Systems, National Defense Medical College Research Institute, Tokorozawa, Japan
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15
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Abstract
Pathological hair loss (also known as alopecia) and shortage of hair follicle (HF) donors have posed an urgent requirement for HF regeneration. With the revelation of mechanisms in tissue engineering, the proliferation of HFs in vitro has achieved more promising trust for the treatments of alopecia and other skin impairments. Theoretically, HF organoids have great potential to develop into native HFs and attachments such as sweat glands after transplantation. However, since the rich extracellular matrix (ECM) deficiency, the induction characteristics of skin-derived cells gradually fade away along with their trichogenic capacity after continuous cell passaging in vitro. Therefore, ECM-mimicking support is an essential prelude before HF transplantation is implemented. This review summarizes the status of providing various epidermal and dermal cells with a three-dimensional (3D) scaffold to support the cell homeostasis and better mimic in vivo environments for the sake of HF regeneration. HF-relevant cells including dermal papilla cells (DPCs), hair follicle stem cells (HFSCs), and mesenchymal stem cells (MSCs) are able to be induced to form HF organoids in the vitro culture system. The niche microenvironment simulated by different forms of biomaterial scaffold can offer the cells a network of ordered growth environment to alleviate inductivity loss and promote the expression of functional proteins. The scaffolds often play the role of ECM substrates and bring about epithelial-mesenchymal interaction (EMI) through coculture to ensure the functional preservation of HF cells during in vitro passage. Functional HF organoids can be formed either before or after transplantation into the dermis layer. Here, we review and emphasize the importance of 3D culture in HF regeneration in vitro. Finally, the latest progress in treatment trials and critical analysis of the properties and benefits of different emerging biomaterials for HF regeneration along with the main challenges and prospects of HF regenerative approaches are discussed.
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Affiliation(s)
- Wei Zheng
- College of Food Science & Technology, Shanghai Ocean University, Shanghai 201306, P.R. China
| | - Chang-Hua Xu
- College of Food Science & Technology, Shanghai Ocean University, Shanghai 201306, P.R. China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai 201306, China
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai 201306, China
- National R&D Branch Center for Freshwater Aquatic Products Processing Technology (Shanghai), Shanghai 201306, China
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16
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Akamatsu Y, Akagi T, Sumitomo T, Takahara Y, Akiyama S, Kawabata S, Akashi M. Construction of Human Three-Dimensional Lung Model Using Layer-by-Layer Method. Tissue Eng Part C Methods 2023; 29:95-102. [PMID: 36721369 DOI: 10.1089/ten.tec.2022.0184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The respiratory tract is one of the frontline barriers for biological defense. Lung epithelial intercellular adhesions provide protection from bacterial and viral infections and prevent invasion into deep tissues by pathogens. Dysfunction of lung epithelial intercellular adhesion caused by pathogens is associated with development of several diseases, such as acute respiratory distress syndrome, pneumonia, and asthma. To elucidate the pathological mechanism of respiratory infections, two-dimensional cell cultures and animal models are commonly used, although are not useful for evaluating host specificity or human biological response. With the rapid progression and worldwide spread of severe acute respiratory syndrome coronavirus-2, there is increasing interest in the development of a three-dimensional (3D) in vitro lung model for analyzing interactions between pathogens and hosts. However, some models possess unclear epithelial polarity or insufficient barrier functions and need the use of complex technologies, have high cost, and long cultivation terms. We previously reported about the fabrication of 3D cellular multilayers using a layer-by-layer (LbL) cell coating technique with extracellular matrix protein, fibronectin (FN), and gelatin (G). In the present study, such a LbL cell coating technique was utilized to construct a human 3D lung model in which a monolayer of the human lower airway epithelial adenocarcinoma cell line Calu-3 cells was placed on 3D-cellular multilayers composed of FN-G-coated human primary pulmonary fibroblast cells. The 3D lung model thus constructed demonstrated an epithelial-fibroblast layer that maintained uniform thickness until 7 days of incubation. Moreover, expressions of E-cadherin, ZO-1, and mucin in the epithelial layer were observed by immunohistochemical staining. Epithelial barrier integrity was evaluated using transepithelial electrical resistance values. The results indicate that the present constructed human 3D lung model is similar to human lung tissues and also features epithelial polarity and a barrier function, thus is considered useful for evaluating infection and pathological mechanisms related to pneumonia and several pathogens. Impact statement A novel in vitro model of lung tissue was established. Using a layer-by-layer cell coating technique, a three-dimensional cultured lung model was constructed. The present novel model was shown to have epithelial polarity and chemical barrier functions. This model may be useful for investigating interaction pathogens and human biology.
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Affiliation(s)
- Yukako Akamatsu
- Department of Oral and Molecular Microbiology, Osaka University Graduate School of Dentistry, Osaka, Japan.,Division of Special Care Dentistry, Osaka University Dental Hospital, Osaka, Japan
| | - Takami Akagi
- Building Block Science Joint Research Chair, Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
| | - Tomoko Sumitomo
- Department of Oral and Molecular Microbiology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Yuki Takahara
- Department of Oral and Molecular Microbiology, Osaka University Graduate School of Dentistry, Osaka, Japan.,Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Shigehisa Akiyama
- Division of Special Care Dentistry, Osaka University Dental Hospital, Osaka, Japan
| | - Shigetada Kawabata
- Department of Oral and Molecular Microbiology, Osaka University Graduate School of Dentistry, Osaka, Japan.,Center for Infectious Disease Education and Research, Osaka University, Osaka, Japan
| | - Mitsuru Akashi
- Building Block Science Joint Research Chair, Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
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17
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Banerjee D, Singh YP, Datta P, Ozbolat V, O'Donnell A, Yeo M, Ozbolat IT. Strategies for 3D bioprinting of spheroids: A comprehensive review. Biomaterials 2022; 291:121881. [DOI: 10.1016/j.biomaterials.2022.121881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 10/04/2022] [Accepted: 10/23/2022] [Indexed: 11/17/2022]
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18
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Cini N, Calisir F. Layer-by-layer self-assembled emerging systems for nanosized drug delivery. Nanomedicine (Lond) 2022; 17:1961-1980. [PMID: 36645082 DOI: 10.2217/nnm-2022-0254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
New frontiers in the development of stimuli-responsive surfaces that offer switchable properties according to the end-use application have added a new dimension to the design of drug-delivery systems (DDS). In this respect, layer-by-layer (LbL) self-assembled technologies have attracted interest in nano-DDS (NDDS) design due to the advantage of encapsulating different drug types either individually or in multiple formulations as an easy-to-apply and cost-effective strategy. LbL-based microcapsules and core-shell structures in the form of polyelectrolyte multilayers (PEMs) have been proposed as versatile vehicles for NDDS over the last quarter. This review aims to provide a global view of LbL-PEMs used as templates in NDDS for the last 5 years with an emphasis on emerging drug loading and release strategies.
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Affiliation(s)
- Nejla Cini
- Istanbul Technical University, Science and Letters Faculty, Chemistry Department, Maslak, Istanbul, 34469, Turkiye
| | - Ferah Calisir
- Istanbul Technical University, Science and Letters Faculty, Chemistry Department, Maslak, Istanbul, 34469, Turkiye
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Zhang Q, Gonelle-Gispert C, Li Y, Geng Z, Gerber-Lemaire S, Wang Y, Buhler L. Islet Encapsulation: New Developments for the Treatment of Type 1 Diabetes. Front Immunol 2022; 13:869984. [PMID: 35493496 PMCID: PMC9046662 DOI: 10.3389/fimmu.2022.869984] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 03/16/2022] [Indexed: 12/21/2022] Open
Abstract
Islet transplantation is a promising approach for the treatment of type 1 diabetes (T1D). Currently, clinical islet transplantation is limited by allo - and autoimmunity that may cause partial or complete loss of islet function within a short period of time, and long-term immunosuppression is required to prevent rejection. Encapsulation into semipermeable biomaterials provides a strategy that allows nutrients, oxygen and secreted hormones to diffuse through the membrane while blocking immune cells and the like out of the capsule, allowing long-term graft survival and avoiding long-term use of immunosuppression. In recent years, a variety of engineering strategies have been developed to improve the composition and properties of encapsulation materials and to explore the clinical practicality of islet cell transplantation from different sources. In particular, the encapsulation of porcine islet and the co-encapsulation of islet cells with other by-standing cells or active ingredients for promoting long-term functionality, attracted significant research efforts. Hydrogels have been widely used for cell encapsulation as well as other therapeutic applications including tissue engineering, cell carriers or drug delivery. Here, we review the current status of various hydrogel biomaterials, natural and synthetic, with particular focus on islet transplantation applications. Natural hydrophilic polymers include polysaccharides (starch, cellulose, alginic acid, hyaluronic acid, chitosan) and peptides (collagen, poly-L-lysine, poly-L-glutamic acid). Synthetic hydrophilic polymers include alcohol, acrylic acid and their derivatives [poly (acrylic acid), poly (methacrylic acid), poly(acrylamide)]. By understanding the advantages and disadvantages of materials from different sources and types, appropriate materials and encapsuling methods can be designed and selected as needed to improve the efficacy and duration of islet. Islet capsule transplantation is emerging as a promising future treatment for T1D.
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Affiliation(s)
- Qi Zhang
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | | | - Yanjiao Li
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Zhen Geng
- Clinical Immunology Translational Medicine Key Laboratory of Sichuan Province, Center of Organ Transplantation, Sichuan Academy of Medical Science and Sichuan Provincial People’s Hospital, Chengdu, China
- Institute of Organ Transplantation, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chinese Academy of Sciences, Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Sandrine Gerber-Lemaire
- Group for Functionalized Biomaterials, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), EPFL SB ISIC SCI-SB-SG, Lausanne, Switzerland
- *Correspondence: Leo Buhler, ; Yi Wang, ; Sandrine Gerber-Lemaire,
| | - Yi Wang
- Clinical Immunology Translational Medicine Key Laboratory of Sichuan Province, Center of Organ Transplantation, Sichuan Academy of Medical Science and Sichuan Provincial People’s Hospital, Chengdu, China
- Institute of Organ Transplantation, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chinese Academy of Sciences, Sichuan Translational Medicine Research Hospital, Chengdu, China
- *Correspondence: Leo Buhler, ; Yi Wang, ; Sandrine Gerber-Lemaire,
| | - Leo Buhler
- Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
- Clinical Immunology Translational Medicine Key Laboratory of Sichuan Province, Center of Organ Transplantation, Sichuan Academy of Medical Science and Sichuan Provincial People’s Hospital, Chengdu, China
- Institute of Organ Transplantation, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chinese Academy of Sciences, Sichuan Translational Medicine Research Hospital, Chengdu, China
- *Correspondence: Leo Buhler, ; Yi Wang, ; Sandrine Gerber-Lemaire,
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20
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Three-dimensional Vascularized β-cell Spheroid Tissue Derived From Human Induced Pluripotent Stem Cells for Subcutaneous Islet Transplantation in a Mouse Model of Type 1 Diabetes. Transplantation 2022; 106:48-59. [PMID: 34905762 DOI: 10.1097/tp.0000000000003745] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Islet transplantation is an effective replacement therapy for type 1 diabetes (T1D) patients. However, shortage of donor organ for allograft is obstacle for further development of the treatment. Subcutaneous transplantation with stem cell-derived β-cells might overcome this, but poor vascularity in the site is burden for success in the transplantation. We investigated the effect of subcutaneous transplantation of vascularized β-cell spheroid tissue constructed 3-dimensionally using a layer-by-layer (LbL) cell-coating technique in a T1D model mouse. METHODS We used MIN6 cells to determine optimal conditions for the coculture of β-cell spheroids, normal human dermal fibroblasts, and human umbilical vein endothelial cells, and then, under those conditions, we constructed vascularized spheroid tissue using human induced pluripotent stem cell-derived β-cells (hiPS β cells). The function of insulin secretion of the vascularized hiPS β-cell spheroid tissue was evaluated in vitro. Furthermore, the function was investigated in T1D model NOD/SCID mice subcutaneously transplanted with the tissue. RESULTS In vitro, the vascularized hiPS β-cell spheroid tissue exhibited enhanced insulin secretion. The vascularized hiPS β-cell spheroid tissue also significantly decreased blood glucose levels in diabetic immunodeficient mice when transplanted subcutaneously. Furthermore, host mouse vessels were observed in the explanted vascularized hiPS β-cell spheroid tissue. CONCLUSIONS Vascularized hiPS β-cell spheroid tissue decreased blood glucose levels in the diabetic mice. This therapeutic effect was suggested due to host angiogenesis in the graft. This method could lead to a promising regenerative treatment for T1D patients.
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Kami D, Suzuki Y, Yamanami M, Tsukimura T, Togawa T, Sakuraba H, Gojo S. Genetically Modified Cell Transplantation Through Macroencapsulated Spheroids with Scaffolds to Treat Fabry Disease. Cell Transplant 2021; 30:9636897211060269. [PMID: 34931534 PMCID: PMC8842475 DOI: 10.1177/09636897211060269] [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] [Indexed: 11/16/2022] Open
Abstract
Cell transplantation is expected to be another strategy to treat lysosomal diseases, having several advantages compared to enzyme replacement therapy, such as continuous enzyme secretion and one-time treatment to cure diseases. However, cell transplantation for lysosomal diseases holds issues to be resolved for the clinical field. In this study, we developed a new ex vivo gene therapy platform using a transplant pack, which consists of a porous membrane made of ethylene-vinyl alcohol in the pack-type and spheroids with scaffolds. These membranes have countless pores of less than 0.1 µm2 capable of secreting proteins, including alpha-galactosidase enzyme, and segregating the contents from the host immune system. When the packs were subcutaneously transplanted into the backs of green fluorescent protein (GFP) mice, no GFP-positive cells migrated to the transplanted pack in either autogenic or allogenic mice. The transplanted cells in the pack survived for 28 days after transplantation. When cells overexpressing alpha-galactosidase were used as donor cells for the packs and implanted into Fabry disease model mice, the accumulation of the alpha-galactosidase enzyme was also observed in the livers. In this study, we reported a new ex vivo therapeutic strategy combining macroencapsulation and cellular spheroids with scaffolds. This pack, macroencapsulated spheroids with scaffolds, can also be applied to other types of lysosomal diseases by modifying genes of interest.
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Affiliation(s)
- Daisuke Kami
- Department of Regenerative Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yosuke Suzuki
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masashi Yamanami
- Department of Cardiovascular Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takahiro Tsukimura
- Department of Functional Bioanalysis, Meiji Pharmaceutical University, Tokyo, Japan
| | - Tadayasu Togawa
- Department of Functional Bioanalysis, Meiji Pharmaceutical University, Tokyo, Japan
| | - Hitoshi Sakuraba
- Department of Clinical Genetics, Meiji Pharmaceutical University, Tokyo, Japan
| | - Satoshi Gojo
- Department of Regenerative Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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22
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Tissue engineering ECM-enriched controllable vascularized human microtissue for hair regenerative medicine using a biomimetic developmental approach. J Adv Res 2021; 38:77-89. [PMID: 35572404 PMCID: PMC9091751 DOI: 10.1016/j.jare.2021.09.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 12/26/2022] Open
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Employing Extracellular Matrix-Based Tissue Engineering Strategies for Age-Dependent Tissue Degenerations. Int J Mol Sci 2021; 22:ijms22179367. [PMID: 34502277 PMCID: PMC8431718 DOI: 10.3390/ijms22179367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 01/10/2023] Open
Abstract
Tissues and organs are not composed of solely cellular components; instead, they converge with an extracellular matrix (ECM). The composition and function of the ECM differ depending on tissue types. The ECM provides a microenvironment that is essential for cellular functionality and regulation. However, during aging, the ECM undergoes significant changes along with the cellular components. The ECM constituents are over- or down-expressed, degraded, and deformed in senescence cells. ECM aging contributes to tissue dysfunction and failure of stem cell maintenance. Aging is the primary risk factor for prevalent diseases, and ECM aging is directly or indirectly correlated to it. Hence, rejuvenation strategies are necessitated to treat various age-associated symptoms. Recent rejuvenation strategies focus on the ECM as the basic biomaterial for regenerative therapies, such as tissue engineering. Modified and decellularized ECMs can be used to substitute aged ECMs and cell niches for culturing engineered tissues. Various tissue engineering approaches, including three-dimensional bioprinting, enable cell delivery and the fabrication of transplantable engineered tissues by employing ECM-based biomaterials.
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Murakami M, Akagi T, Sasano Y, Akashi M. Effect of 3D-Fibroblast Dermis Constructed by Layer-by-Layer Cell Coating Technique on Tight Junction Formation and Function in Full-Thickness Skin Equivalent. ACS Biomater Sci Eng 2021; 7:3835-3844. [PMID: 34286576 DOI: 10.1021/acsbiomaterials.1c00375] [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: 11/30/2022]
Abstract
Human skin equivalents (HSEs) consisting of an epidermis and dermis have been used as promising tools for drug evaluation and for clinical applications in regenerative medicine. Normal human dermal fibroblasts (NHDFs) are essential for the fabrication of HSEs because they play an important role in the maturation of the epidermis. Recently, epidermal tight junctions (TJs), which are complex cell-cell junctions, have attracted much attention as a second barrier and regulator for other barrier functions. In a previous study, we revealed the expression of TJ-related proteins and the time course of formation of TJ structure in the HSE (layer-by-layer (LbL)-three-dimensional (3D) Skin) constructed by layer-by-layer (LbL) cell coating technique that have a unique dermis consisting of NHDFs only (3D-fibroblast dermis). However, the effect of the 3D-fibroblast dermis on the formation of functional epidermal TJs is unknown. In this study, we investigated the effect of the 3D-fibroblast dermis on the expression of TJ-related proteins and TJ function in LbL-3D Skin. We demonstrated that the 3D-fibroblast dermis affects the long-term expression of TJ-related proteins and the formation of TJ with barrier function in the epidermis. These results show that the 3D-fibroblast dermis in LbL-3D Skin contributes to the formation and maintenance of functional TJs as in native human skin by direct contact with KCs.
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Affiliation(s)
- Masato Murakami
- Department of Frontier Biosciences, Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Takami Akagi
- Department of Frontier Biosciences, Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yumi Sasano
- Department of Frontier Biosciences, Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan.,Pharma-Medicals Division, Life & Healthcare Products Department, Nagase & Co., Ltd., 2-2-3 Murotani, Nishi-ku, Kobe, Hyogo 651-2241, Japan
| | - Mitsuru Akashi
- Department of Frontier Biosciences, Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
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Akashi M, Akagi T. Composite Materials by Building Block Chemistry Using Weak Interaction. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210089] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mitsuru Akashi
- Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Takami Akagi
- Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
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26
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Murakami M, Akagi T, Sasano Y, Chiba T, Narita H, Shimoda H, Akashi M. Observation of a tight junction structure generated in LbL-3D skin reconstructed by layer-by-layer cell coating technique. J Tissue Eng Regen Med 2021; 15:798-803. [PMID: 34028181 DOI: 10.1002/term.3221] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 12/12/2022]
Abstract
Tissue-engineered skin equivalents are reconstructed the functions of human skin and can be used as an alternative to animal experiments in basic study or as cultured skin for regenerative medicine. Recent studies confirmed that epidermal tight junctions (TJs), which are complex intercellular junctions formed in the stratum granulosum of human skin, play an important part in the formation of the skin barrier function. In well-formed reconstructed human skin models, there are several reports on the expression of TJ proteins and their localization in epidermal layer, however, the morphological features of TJ, showing tight junctional contacts and the process of TJ formation have yet to be investigated. In this study, we systematically examined and identified TJ-related proteins and TJ structure in three-dimensional (3D) human skin equivalents reconstructed by layer-by-layer (LbL) cell coating technique (LbL-3D Skin). We demonstrate localization of TJ-related proteins and time course of formation of TJ structure with typical junctional morphology in LbL-3D Skin. These data provide evidence that the LbL-3D Skin is an in vitro model with structure and function extremely similar to living skin.
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Affiliation(s)
- Masato Murakami
- Department of Frontier Biosciences, Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
| | - Takami Akagi
- Department of Frontier Biosciences, Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
| | - Yumi Sasano
- Department of Frontier Biosciences, Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan.,Life & Healthcare Products Department, Pharma-Medicals Division, Nagase & Co., Ltd., Kobe, Japan
| | - Tomohiro Chiba
- Department of Anatomical Science, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Hirokazu Narita
- Department of Anatomical Science, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Hiroshi Shimoda
- Department of Anatomical Science, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Mitsuru Akashi
- Department of Frontier Biosciences, Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
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27
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Kuno H, Akagi T, Fukui E, Yamato H, Akashi M, Shintani Y. Three-Dimensional Idiopathic Pulmonary Fibrosis Model Using a Layer-by-Layer Cell Coating Technique. Tissue Eng Part C Methods 2021; 27:378-390. [PMID: 34074128 DOI: 10.1089/ten.tec.2020.0365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a severe health problem characterized by progressive fibroblast proliferation and aberrant vascular remodeling. However, the lack of a suitable in vitro model that replicates cell-specific changes in IPF tissue is a crucial issue. Three-dimensional (3D) cell cultures allow the mimicking of cell-specific functions, facilitating development of novel antifibrosis drugs. We have established a layer-by-layer (LbL) cell coating technique that enables the construction of 3D tissue and also vascularized 3D tissue. This study evaluated whether this technique is beneficial for constructing an in vitro IPF-3D model using human lung fibroblasts and microvascular endothelial cells. We fabricated an in vitro IPF-3D model to provide IPF-derived fibroblasts-specific function and aberrant microvascular structure using the LbL cell coating technique. We also found that this in vitro IPF-3D model showed drug responsiveness to two antifibrosis drugs that have recently been approved worldwide. This in vitro IPF-3D model constructed by a LbL cell coating technique would help in the understanding of fibroblast function and the microvascular environment in IPF and could also be used to predict the efficacy of novel antifibrosis drugs. Impact statement We established a novel in vitro model mimicking idiopathic pulmonary fibrosis. Three-dimensional culture was constructed by layer-by-layer cell coating technique. This novel model provides a visualization of fibroblast-specific function. This assay allows for the assessment of pulmonary microvascular environment. Our model may be useful for predicting the efficacy of novel antifibrosis drugs.
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Affiliation(s)
- Hidenori Kuno
- Department of General Thoracic Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Takami Akagi
- Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
| | - Eriko Fukui
- Department of General Thoracic Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Hiroyuki Yamato
- Department of General Thoracic Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Mitsuru Akashi
- Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
| | - Yasushi Shintani
- Department of General Thoracic Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
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Polyelectrolyte Multilayers on Soft Colloidal Nanosurfaces: A New Life for the Layer-By-Layer Method. Polymers (Basel) 2021; 13:polym13081221. [PMID: 33918844 PMCID: PMC8069484 DOI: 10.3390/polym13081221] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/04/2021] [Accepted: 04/05/2021] [Indexed: 02/07/2023] Open
Abstract
The Layer-by-Layer (LbL) method is a well-established method for the assembly of nanomaterials with controlled structure and functionality through the alternate deposition onto a template of two mutual interacting molecules, e.g., polyelectrolytes bearing opposite charge. The current development of this methodology has allowed the fabrication of a broad range of systems by assembling different types of molecules onto substrates with different chemical nature, size, or shape, resulting in numerous applications for LbL systems. In particular, the use of soft colloidal nanosurfaces, including nanogels, vesicles, liposomes, micelles, and emulsion droplets as a template for the assembly of LbL materials has undergone a significant growth in recent years due to their potential impact on the design of platforms for the encapsulation and controlled release of active molecules. This review proposes an analysis of some of the current trends on the fabrication of LbL materials using soft colloidal nanosurfaces, including liposomes, emulsion droplets, or even cells, as templates. Furthermore, some fundamental aspects related to deposition methodologies commonly used for fabricating LbL materials on colloidal templates together with the most fundamental physicochemical aspects involved in the assembly of LbL materials will also be discussed.
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Chen P, Zhang F, Fan Z, Shen T, Liu B, Chen R, Qu Q, Wang J, Miao Y, Hu Z. Nanoscale microenvironment engineering for expanding human hair follicle stem cell and revealing their plasticity. J Nanobiotechnology 2021; 19:94. [PMID: 33789665 PMCID: PMC8010974 DOI: 10.1186/s12951-021-00840-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 03/23/2021] [Indexed: 11/17/2022] Open
Abstract
Background Periodically regenerated hair follicles provide an excellent research model for studying tissue regeneration and stem cell homeostasis. Periodic activation and differentiation of hair follicle stem cells (HFSCs) fuel cyclical bouts of hair regeneration. HFSCs represent an excellent paradigm for studying tissue regeneration and somatic stem cell homeostasis. However, these crucial studies are hampered by the lack of a culture system able to stably expand human HFSCs and regulate their fate. Results Here, we use layer-by-layer (LbL) self-assembly with gelatin/alginate to construct a nanoscale biomimetic extracellular matrix (ECM) for an HFSC population. The LbL coating provides ECM and mechanical support for individual cells, which helps to maintain the CD200+α6+ HFSC population to a certain extent. Addition of key signal molecules (FGF-7 and VEGF-A) simulates the minimum essential components of the stem cell microenvironment, thereby effectively and stably expanding HFSCs and maintaining the CD200+α6+ HFSC population. Subsequently, BMP2 loaded to the nanocoated layer, as a slow-release signal molecule, activates BMP signaling to regulate HFSCs’ fate in order to obtain a purified CD200+α6+ HFSC population. Conclusion This system can minimize the microenvironment of HFSCs; thus, stably amplifying HFSCs and revealing their plasticity. Our study thus provides a new tool for studies of hair follicle reconstruction and stem cell homeostasis. ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-00840-5.
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Affiliation(s)
- Peng Chen
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, Guangdong, China
| | - Feifei Zhang
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, Guangdong, China
| | - Zhexiang Fan
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, Guangdong, China
| | - Tianding Shen
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, Guangdong, China
| | - Bingcheng Liu
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, Guangdong, China
| | - Ruosi Chen
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, Guangdong, China
| | - Qian Qu
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, Guangdong, China
| | - Jin Wang
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, Guangdong, China.
| | - Yong Miao
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, Guangdong, China.
| | - Zhiqi Hu
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, Guangdong, China.
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Noninvasive Tracking of mPEG-poly(Ala) Hydrogel-Embedded MIN6 Cells after Subcutaneous Transplantation in Mice. Polymers (Basel) 2021; 13:polym13060885. [PMID: 33805723 PMCID: PMC7998640 DOI: 10.3390/polym13060885] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/11/2021] [Accepted: 03/11/2021] [Indexed: 01/10/2023] Open
Abstract
Recently, we demonstrated the feasibility of subcutaneous transplantation of MIN6 cells embedded in a scaffold with poly(ethylene glycol) methyl ether (mPEG)-poly(Ala) hydrogels. In this study, we further tracked these grafts using magnetic resonance (MR) and bioluminescence imaging. After being incubated overnight with chitosan-coated superparamagnetic iron oxide (CSPIO) nanoparticles and then mixed with mPEG-poly(Ala) hydrogels, MIN6 cells appeared as dark spots on MR scans. For in vivo experiments, we transfected MIN6 cells with luciferase and/or incubated them overnight with CSPIO overnight; 5 × 106 MIN6 cells embedded in mPEG-poly(Ala) hydrogels were transplanted into the subcutaneous space of each nude mouse. The graft of CSPIO-labeled MIN6 cells was visualized as a distinct hypointense area on MR images located at the implantation site before day 21. However, this area became hyperintense on MR scans for up to 64 days. In addition, positive bioluminescence images were also observed for up to 64 days after transplantation. The histology of removed grafts showed positive insulin and iron staining. These results indicate mPEG-poly(Ala) is a suitable scaffold for β-cell encapsulation and transplantation. Moreover, MR and bioluminescence imaging are useful noninvasive tools for detecting and monitoring mPEG-poly(Ala) hydrogel-embedded MIN6 cells at a subcutaneous site.
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Advanced Multi-Dimensional Cellular Models as Emerging Reality to Reproduce In Vitro the Human Body Complexity. Int J Mol Sci 2021; 22:ijms22031195. [PMID: 33530487 PMCID: PMC7865724 DOI: 10.3390/ijms22031195] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/19/2021] [Accepted: 01/22/2021] [Indexed: 02/07/2023] Open
Abstract
A hot topic in biomedical science is the implementation of more predictive in vitro models of human tissues to significantly improve the knowledge of physiological or pathological process, drugs discovery and screening. Bidimensional (2D) culture systems still represent good high-throughput options for basic research. Unfortunately, these systems are not able to recapitulate the in vivo three-dimensional (3D) environment of native tissues, resulting in a poor in vitro–in vivo translation. In addition, intra-species differences limited the use of animal data for predicting human responses, increasing in vivo preclinical failures and ethical concerns. Dealing with these challenges, in vitro 3D technological approaches were recently bioengineered as promising platforms able to closely capture the complexity of in vivo normal/pathological tissues. Potentially, such systems could resemble tissue-specific extracellular matrix (ECM), cell–cell and cell–ECM interactions and specific cell biological responses to mechanical and physical/chemical properties of the matrix. In this context, this review presents the state of the art of the most advanced progresses of the last years. A special attention to the emerging technologies for the development of human 3D disease-relevant and physiological models, varying from cell self-assembly (i.e., multicellular spheroids and organoids) to the use of biomaterials and microfluidic devices has been given.
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Castilla-Casadiego DA, Timsina H, Haseli M, Pinzon-Herrera L, Chiao YH, Wickramasinghe SR, Almodovar J. Methods for the Assembly and Characterization of Polyelectrolyte Multilayers as Microenvironments to Modulate Human Mesenchymal Stromal Cell Response. ACS Biomater Sci Eng 2020; 6:6626-6651. [PMID: 33320619 DOI: 10.1021/acsbiomaterials.0c01397] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Thin films are of interest in materials design because they allow for the modification of surface properties of materials while the bulk properties of the material are largely unaffected. In this work, we outline methods for the assembly of thin films using a technique known as layer-by-layer (LbL). Furthermore, their interactions with human mesenchymal stromal cells (hMSCs) are discussed. hMSCs are a subject of growing interest because of their potential to treat or cure diseases, given their immunosuppressive properties, multipotent differentiation capabilities, and tissue regeneration capabilities. Numerous improvements and modifications have been suggested for the harvesting, treatment, and culture of hMSCs prior to their administration in human subjects. Here, we discuss methods to assess the interactions of hMSCs with thin LbL-assembled films of heparin and collagen. Three different methods are discussed. The first details the preparation of heparin/collagen multilayers on different surfaces and the seeding of cells on these multilayers. The second method details the characterization of multilayers, including techniques to assess the thickness, roughness, and surface charge of the multilayers, as well as in situ deposition of multilayers. The third method details the analysis of cell interactions with the multilayers, including techniques to assess proliferation, viability, real-time monitoring of hMSC behavior, analysis of hMSC-adhesive proteins on the multilayers, immunomodulatory factor expression of hMSCs, and cytokine expression on heparin/collagen multilayers. We propose that the methods described in this work will assist in the design and characterization of LbL-assembled thin films and the analysis of hMSCs cultured on these thin films.
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Affiliation(s)
- David A Castilla-Casadiego
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, Arkansas 72701, United States
| | - Hemanta Timsina
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, Arkansas 72701, United States
| | - Mahsa Haseli
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, Arkansas 72701, United States
| | - Luis Pinzon-Herrera
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, Arkansas 72701, United States
| | - Yu-Hsuan Chiao
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, Arkansas 72701, United States
| | - S Ranil Wickramasinghe
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, Arkansas 72701, United States
| | - Jorge Almodovar
- Ralph E. Martin Department of Chemical Engineering, University of Arkansas, 3202 Bell Engineering Center, Fayetteville, Arkansas 72701, United States
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Kim SJ, Kim EM, Yamamoto M, Park H, Shin H. Engineering Multi-Cellular Spheroids for Tissue Engineering and Regenerative Medicine. Adv Healthc Mater 2020; 9:e2000608. [PMID: 32734719 DOI: 10.1002/adhm.202000608] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 07/09/2020] [Indexed: 02/06/2023]
Abstract
Multi-cellular spheroids are formed as a 3D structure with dense cell-cell/cell-extracellular matrix interactions, and thus, have been widely utilized as implantable therapeutics and various ex vivo tissue models in tissue engineering. In principle, spheroid culture methods maximize cell-cell cohesion and induce spontaneous cellular assembly while minimizing cellular interactions with substrates by using physical forces such as gravitational or centrifugal forces, protein-repellant biomaterials, and micro-structured surfaces. In addition, biofunctional materials including magnetic nanoparticles, polymer microspheres, and nanofiber particles are combined with cells to harvest composite spheroids, to accelerate spheroid formation, to increase the mechanical properties and viability of spheroids, and to direct differentiation of stem cells into desirable cell types. Biocompatible hydrogels are developed to produce microgels for the fabrication of size-controlled spheroids with high efficiency. Recently, spheroids have been further engineered to fabricate structurally and functionally reliable in vitro artificial 3D tissues of the desired shape with enhanced specific biological functions. This paper reviews the overall characteristics of spheroids and general/advanced spheroid culture techniques. Significant roles of functional biomaterials in advanced spheroid engineering with emphasis on the use of spheroids in the reconstruction of artificial 3D tissue for tissue engineering are also thoroughly discussed.
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Affiliation(s)
- Se-Jeong Kim
- Department of Bioengineering, Hanyang University, 222 Wangsimri-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team, Hanyang University, 222 Wangsimri-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Eun Mi Kim
- Department of Bioengineering, Hanyang University, 222 Wangsimri-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team, Hanyang University, 222 Wangsimri-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Masaya Yamamoto
- Department of Materials Processing, Graduate School of Engineering, Tohoku University, 6-6-02 Aramaki-aza Aoba, Aoba-ku, Sendai, 980-8579, Japan
- Biomedical Engineering for Diagnosis and Treatment, Graduate School of Biomedical Engineering, Tohoku University, 6-6-02 Aramaki-aza Aoba, Aoba-ku, Sendai, 980-8579, Japan
| | - Hansoo Park
- School of Integrative Engineering, College of Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, 06974, Republic of Korea
| | - Heungsoo Shin
- Department of Bioengineering, Hanyang University, 222 Wangsimri-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team, Hanyang University, 222 Wangsimri-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
- Institute of Nano Science & Technology (INST), Hanyang University, 222 Wangsimri-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
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Chen P, Miao Y, Zhang F, Huang J, Chen Y, Fan Z, Yang L, Wang J, Hu Z. Nanoscale microenvironment engineering based on layer-by-layer self-assembly to regulate hair follicle stem cell fate for regenerative medicine. Am J Cancer Res 2020; 10:11673-11689. [PMID: 33052240 PMCID: PMC7545990 DOI: 10.7150/thno.48723] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 09/09/2020] [Indexed: 01/27/2023] Open
Abstract
Hair regenerative medicine, a promising strategy for the treatment of hair loss, will likely involve the transplantation of autologous hair follicular stem cells (HFSCs) and dermal papilla cells (DPCs) into regions of hair loss. Cyclic hair regeneration results from the periodic partial activation of HFSCs. However, previous studies have not successfully achieved large-scale HFSC expansion in vitro without the use of feeder cells, with a lack of research focused on regulating HFSC fate for hair follicular (HF) regeneration. Hence, an emerging focus in regenerative medicine is the reconstruction of natural extracellular matrix (ECM) regulatory characteristics using biomaterials to generate cellular microenvironments for expanding stem cells and directing their fate for tissue regeneration. Methods: HFSCs were coated with gelatin and alginate using layer-by-layer (LbL) self-assembly technology to construct biomimetic ECM for HFSCs; after which transforming growth factor (TGF)-β2 was loaded into the coating layer, which served as a sustained-release signal molecule to regulate the fate of HFSCs both in vitro and in vivo. In vitro experiments (cell culture and siRNA) were employed to investigate the molecular mechanisms involved and in vivo implantation was carried out to evaluate hair induction efficiency. Results: Nanoscale biomimetic ECM was constructed for individual HFSCs, which allowed for the stable amplification of HFSCs and maintenance of their stem cell properties. TGF-β2 loading into the coating layer induced transformation of CD34+ stem cells into highly proliferating Lgr5+ stem cells, similar to the partial activation of HFSCs in HF regeneration. Thus, LbL coating and TGF-β2 loading partially reconstructed the quiescent and activated states, respectively, of stem cells during HF regeneration, thereby mimicking the microenvironment that regulates stem cell fate for tissue regeneration during HF cycling. Improved HF regeneration was achieved when the two HFSC states were co-transplanted with neonatal mouse dermal cells into nude mice. Conclusion: This study provides novel methods for the construction of stem cell microenvironments and experimental models of HF regeneration for the treatment of hair loss.
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Tsukamoto Y, Akagi T, Akashi M. Supersensitive Layer-by-Layer 3D Cardiac Tissues Fabricated on a Collagen Culture Vessel Using Human-Induced Pluripotent Stem Cells. Tissue Eng Part C Methods 2020; 26:493-502. [PMID: 32873187 DOI: 10.1089/ten.tec.2020.0195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background: The fabrication of artificial cardiac tissue is an active area of research due to the shortage of donors for heart transplantation and for drug development. In our previous study, we fabricated vascularized three-dimensional (3D) cardiac tissue by layer-by-layer (LbL) and cell accumulation technique. However, it was not able to develop sufficient function because it was cultured on a hard plastic substrate. Experiment: Herein, we report the fabrication of high-performance 3D cardiac tissue by LbL and cell accumulation technique using a collagen culture vessel. Results: By using a collagen culture vessel, 3D cardiac tissue could be fabricated on a collagen culture vessel and this tissue showed high functionality due to improved interaction with the vessel. In the case of the plastic culture insert, 3D cardiac tissue was found to be peeled off, but this did not occur on the collagen culture vessel. In addition, the 3D cardiac tissue fabricated on a collagen culture vessel showed contraction that was 20 times larger than the tissue fabricated on a plastic culture insert. As a result of evaluation of cardiotoxicity using E-4031, the sensitivity of arrhythmia detection was increased by using collagen culture vessel. Conclusions: These results are expected to contribute to transplantation and drug discovery research as a 3D cardiac tissue model with a function similar to that of the living heart.
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Affiliation(s)
- Yoshinari Tsukamoto
- Building Block Science Joint Research Chair, Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
| | - Takami Akagi
- Building Block Science Joint Research Chair, Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
| | - Mitsuru Akashi
- Building Block Science Joint Research Chair, Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
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Ruhela A, Kasinathan GN, Rath SN, Sasikala M, Sharma CS. Electrospun freestanding hydrophobic fabric as a potential polymer semi-permeable membrane for islet encapsulation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111409. [PMID: 33255012 DOI: 10.1016/j.msec.2020.111409] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/04/2020] [Accepted: 08/11/2020] [Indexed: 01/13/2023]
Abstract
One of the significant problems associated with islet encapsulation for type 1 diabetes treatment is the loss of islet functionality or cell death after transplantation because of the unfavorable environment for the cells. In this work, we propose a simple strategy to fabricate electrospun membranes that will provide a favorable environment for proper islet function and also a desirable pore size to cease cellular infiltration, protecting the encapsulated islet from immune cells. By electrospinning the wettability of three different biocompatible polymers: cellulose acetate (CA), polyethersulfone (PES), and polytetrafluoroethylene (PTFE) was greatly modified. The contact angle of electrospun CA, PES, and PTFE increased to 136°, 126°, and 155° as compared to 55°, 71°, and 128° respectively as a thin film, making the electrospun membranes hydrophobic. Commercial porous membranes of PES and PTFE show a contact angle of 30° and 118°, respectively, confirming the hydrophobicity of electrospun membranes is due to the surface morphology induced by electrospinning. In- vivo results confirm that the induced hydrophobicity and surface morphology of electrospun membranes impede cell attachment, which would help in maintaining the 3D circular morphology of islet cell. More importantly, the pore size of 0.3-0.6 μm obtained due to the densely packed structure of nanofibers, will be able to restrict immune cells but would allow free movement of molecules like insulin and glucose. Therefore, electrospun polymer fibrous membranes as fabricated in this work, with hydrophobic and porous properties, make a strong case for successful islet encapsulation.
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Affiliation(s)
- Aakanksha Ruhela
- Creative & Advanced Research Based On Nanomaterials (CARBON) Laboratory, Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, Telangana, India
| | - Gokula Nathan Kasinathan
- Regenerative Medicine and Stem Cell Laboratory (RMS), Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, Telangana, India
| | - Subha N Rath
- Regenerative Medicine and Stem Cell Laboratory (RMS), Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, Telangana, India
| | - M Sasikala
- Asian Healthcare Foundation, Gachibowli, Hyderabad 500032, Telangana, India
| | - Chandra S Sharma
- Creative & Advanced Research Based On Nanomaterials (CARBON) Laboratory, Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, Telangana, India.
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Nishiyama K, Akagi T, Iwai S, Akashi M. Construction of Vascularized Oral Mucosa Equivalents Using a Layer-by-Layer Cell Coating Technology. Tissue Eng Part C Methods 2020; 25:262-275. [PMID: 30838934 DOI: 10.1089/ten.tec.2018.0337] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
There have been many advances in tissue engineering with respect to in vitro and in vivo models of oral mucosa equivalents (OMEs). To apply in vitro reconstructed oral mucosa models to regenerative medicine and alternatives to animal testing, it is necessary to develop the technology of reconstructing different types of oral tissues, such as control of epithelial differentiation and introduction of appendages. We previously reported that functional three-dimensional (3D) tissue models could be quickly constructed by using a layer-by-layer (LbL) cell coating technique that assembles extracellular matrix (ECM) nanofilms to a cell surface. In this study, 3D human OMEs composed of lamina-propria, keratinized or non-keratinized epithelium, and blood capillaries were constructed by using the LbL cell coating technology. Human oral mucosal fibroblasts (HOMFs) were coated with ECM nanofilms and accumulated for the construction of oral mucosal lamina-propria. To construct OMEs with keratinized or non-keratinized epithelium, human oral keratinocytes isolated from gingiva (human oral gingival keratinocytes: HOGKs) or human oral keratinocytes isolated from oral mucosa (human oral mucosal keratinocytes: HOMKs) were used in this study. We further studied the construction of epithelialized OMEs with density- and size-controlled blood capillary networks by using human umbilical vein endothelial cells (HUVECs). It was revealed that these constructions had barrier functions in accordance with their histological characterization. The OMEs with keratinization (K-OMEs) showed higher transepithelial electrical resistance (TEER) values compared with OMEs with non-keratinization (N-OMEs). The constructed epithelialized OMEs with blood capillaries are useful for in vitro/ex vivo research models and regenerative medicine as in oral tissue regeneration. The results suggest that OMEs with oral tissue appendages are more promising alternatives to animal testing and can be applied to the design of in vitro oral models that mimic human tissue organs.
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Affiliation(s)
- Kyoko Nishiyama
- 1 Department of Oral and Maxillofacial Surgery II, Graduate School of Dentistry, Osaka University, Osaka, Japan
| | - Takami Akagi
- 2 Building Block Science Joint Research Chair, Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
| | - Soichi Iwai
- 1 Department of Oral and Maxillofacial Surgery II, Graduate School of Dentistry, Osaka University, Osaka, Japan
| | - Mitsuru Akashi
- 2 Building Block Science Joint Research Chair, Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
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Miyaoka A, Tsukamoto Y, Takagi D, Seo M, Miyagawa S, Akashi M. Noninvasive optical coherence tomography imaging of three-dimensional cardiac tissues derived from human induced pluripotent stem cells. J Tissue Eng Regen Med 2020; 14:1384-1393. [PMID: 32593199 DOI: 10.1002/term.3092] [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] [Received: 06/27/2019] [Revised: 05/19/2020] [Accepted: 06/15/2020] [Indexed: 01/06/2023]
Abstract
Artificial three-dimensional (3D) tissues have the potential to be used in regenerative medicine or in vitro screening. In particular, the fabrication of 3-D cardiac tissues is greatly anticipated. However, hierarchical organization of 3-D tissues is still unknown. In regenerative medicine and drug discovery, noninvasive evaluation methods of 3-D tissues including inside of it play a key role. In this study, we report on noninvasive methods of analyzing bio-fabricated 3-D cardiac tissues using optical coherence tomography (OCT) and image analysis. Three-dimensional cardiac tissues were fabricated by coating of extracellular matrix nanofilms onto a cell surface using a layer-by-layer (LbL) technique. At first, we investigated the relationship between surface beating and its thickness to assess the value of internal analysis. The results showed that the surface beating was influenced by the thickness. Next, we tried to quantitatively evaluate the internal beating of 3-D cardiac tissues. We also confirmed the methods by changing the beating properties through the administration of isoproterenol. Our results demonstrated that the beating properties of 3-D cardiac tissues differed by depth. The results of this study suggest that information on the internal properties of 3-D cardiac tissue was necessary to understand how it functions. The combination of OCT and image analysis can be used to evaluate the internal beating properties, including changes in beating induced by a drug. It is suggested that OCT and image analysis have the potential to be used as noninvasive methods in regenerative medicine and pharmaceutical applications.
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Affiliation(s)
- Atsushi Miyaoka
- Biomedical Research Department, Healthcare Research & Development Center, Ricoh Institute of Future Technology, RICOH COMPANY, LTD., Kawasaki, Japan
| | - Yoshinari Tsukamoto
- Building Block Science Joint Research Chair, Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
| | - Daisuke Takagi
- Biomedical Research Department, Healthcare Research & Development Center, Ricoh Institute of Future Technology, RICOH COMPANY, LTD., Kawasaki, Japan
| | - Manabu Seo
- Biomedical Research Department, Healthcare Research & Development Center, Ricoh Institute of Future Technology, RICOH COMPANY, LTD., Kawasaki, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Mitsuru Akashi
- Building Block Science Joint Research Chair, Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
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Abstract
Controlled drug delivery formulations have revolutionized treatments for a range of health conditions. Over decades of innovation, layer-by-layer (LbL) self-assembly has emerged as one of the most versatile fabrication methods used to develop multifunctional controlled drug release coatings. The numerous advantages of LbL include its ability to incorporate and preserve biological activity of therapeutic agents; coat multiple substrates of all scales (e.g., nanoparticles to implants); and exhibit tuned, targeted, and/or responsive drug release behavior. The functional behavior of LbL films can be related to their physicochemical properties. In this review, we highlight recent advances in the development of LbL-engineered biomaterials for drug delivery, demonstrating their potential in the fields of cancer therapy, microbial infection prevention and treatment, and directing cellular responses. We discuss the various advantages of LbL biomaterial design for a given application as demonstrated through in vitro and in vivo studies.
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Affiliation(s)
- Dahlia Alkekhia
- School of Engineering and Center for Biomedical Engineering, Brown University, Providence, Rhode Island 02912, USA
| | - Paula T. Hammond
- Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Anita Shukla
- School of Engineering and Center for Biomedical Engineering, Brown University, Providence, Rhode Island 02912, USA
- Institute for Molecular and Nanoscale Innovation, Brown University, Providence, Rhode Island 02912, USA
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40
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Vascularized cardiac tissue construction with orientation by layer-by-layer method and 3D printer. Sci Rep 2020; 10:5484. [PMID: 32218447 PMCID: PMC7098983 DOI: 10.1038/s41598-020-59371-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 11/06/2019] [Indexed: 02/04/2023] Open
Abstract
Herein, we report the fabrication of native organ-like three-dimensional (3D) cardiac tissue with an oriented structure and vascular network using a layer-by-layer (LbL), cell accumulation and 3D printing technique for regenerative medicine and pharmaceutical applications. We firstly evaluated the 3D shaping ability of hydroxybutyl chitosan (HBC), a thermoresponsive polymer, by using a robotic dispensing 3D printer. Next, we tried to fabricate orientation-controlled 3D cardiac tissue using human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CM) and normal human cardiac fibroblasts (NHCF) coated with extracellular matrix (ECM) nanofilms by layer-by-layer technique. These cells were seeded in the fabricated rectangular shape HBC gel frame. After cultivation of the fabricated tissue, fluorescence staining of the cytoskeleton revealed that hiPSC-CM and NHCF were aligned in one direction. Moreover, we were able to measure its contractile behavior using a video image analysis system. These results indicate that orientation-controlled cardiac tissue has more remarkable contractile function than uncontrolled cardiac tissue. Finally, co-culture with human cardiac microvascular endothelial cells (HMVEC) successfully provided a vascular network in orientation-controlled 3D cardiac tissue. The constructed 3D cardiac tissue with an oriented structure and vascular network would be a useful tool for regenerative medicine and pharmaceutical applications.
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41
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Wiggins SC, Abuid NJ, Gattás-Asfura KM, Kar S, Stabler CL. Nanotechnology Approaches to Modulate Immune Responses to Cell-based Therapies for Type 1 Diabetes. J Diabetes Sci Technol 2020; 14:212-225. [PMID: 32116026 PMCID: PMC7196865 DOI: 10.1177/1932296819871947] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Islet transplantation is a promising curative treatment option for type 1 diabetes (T1D) as it can provide physiological blood glucose control. The widespread utilization of islet transplantation is limited due to systemic immunosuppression requirements, persisting graft immunodestruction, and poor islet engraftment. Traditional macro- and micropolymeric encapsulation strategies can alleviate the need for antirejection immunosuppression, yet the increased graft volume and diffusional distances imparted by these coatings can be detrimental to graft viability and glucose control. Additionally, systemic administration of pro-engraftment and antirejection therapeutics leaves patients vulnerable to adverse off-target side effects. Nanoscale engineering techniques can be used to immunocamouflage islets, modulate the transplant microenvironment, and provide localized pro-engraftment cues. In this review, we discuss the applications of nanotechnology to advance the clinical potential of islet transplantation, with a focus on cell surface engineering, bioactive functionalization, and use of nanoparticles in T1D cell-based treatments.
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Affiliation(s)
- Sydney C. Wiggins
- J. Crayton Pruitt Family Department of
Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Nicholas J. Abuid
- J. Crayton Pruitt Family Department of
Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Kerim M. Gattás-Asfura
- J. Crayton Pruitt Family Department of
Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Saumadritaa Kar
- J. Crayton Pruitt Family Department of
Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Cherie L. Stabler
- J. Crayton Pruitt Family Department of
Biomedical Engineering, University of Florida, Gainesville, FL, USA
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42
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Lin HC, Chen CY, Kao CW, Wu ST, Chen CL, Shen CR, Juang JH, Chu IM. In situ gelling-polypeptide hydrogel systems for the subcutaneous transplantation of MIN6 cells. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-2032-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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43
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Koh I, Yong I, Kim B, Choi D, Hong J, Han YM, Kim P. Tris(2-carboxyethyl)phosphine-Mediated Nanometric Extracellular Matrix-Coating Method of Mesenchymal Stem Cells. ACS Biomater Sci Eng 2020; 6:813-821. [DOI: 10.1021/acsbiomaterials.9b01480] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- IlKyoo Koh
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Insung Yong
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Bumsoo Kim
- Department of Biological Science, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Daheui Choi
- Department of Chemical & Biomolecular Engineering, Yonsei University, Seodaemun-gu, Seoul 038722, Republic of Korea
| | - Jinkee Hong
- Department of Chemical & Biomolecular Engineering, Yonsei University, Seodaemun-gu, Seoul 038722, Republic of Korea
| | - Yong-Mahn Han
- Department of Biological Science, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Pilnam Kim
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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44
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Ratner BD, Hoffman AS, McArthur SL. Physicochemical Surface Modification of Materials Used in Medicine. Biomater Sci 2020. [DOI: 10.1016/b978-0-12-816137-1.00033-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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45
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White AM, Shamul JG, Xu J, Stewart S, Bromberg JS, He X. Engineering Strategies to Improve Islet Transplantation for Type 1 Diabetes Therapy. ACS Biomater Sci Eng 2019; 6:2543-2562. [PMID: 33299929 DOI: 10.1021/acsbiomaterials.9b01406] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Type 1 diabetes is an autoimmune disease in which the immune system attacks insulin-producing beta cells of pancreatic islets. Type 1 diabetes can be treated with islet transplantation; however, patients must be administered immunosuppressants to prevent immune rejection of the transplanted islets if they are not autologous or not engineered with immune protection/isolation. To overcome biological barriers of islet transplantation, encapsulation strategies have been developed and robustly investigated. While islet encapsulation can prevent the need for immunosuppressants, these approaches have not shown much success in clinical trials due to a lack of long-term insulin production. Multiple engineering strategies have been used to improve encapsulation and post-transplantation islet survival. In addition, more efficient islet cryopreservation methods have been designed to facilitate the scaling-up of islet transplantation. Other islet sources have been identified including porcine islets and stem cell-derived islet-like aggregates. Overall, islet-laden capsule transplantation has greatly improved over the past 30 years and is moving towards becoming a clinically feasible treatment for type 1 diabetes.
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Affiliation(s)
- Alisa M White
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
| | - James G Shamul
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
| | - Jiangsheng Xu
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
| | - Samantha Stewart
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
| | - Jonathan S Bromberg
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD 21201.,Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201.,Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201.,Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201
| | - Xiaoming He
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA.,Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201.,Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD 20742, USA, Baltimore, MD 21201, USA
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46
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Guerzoni LPB, Tsukamoto Y, Gehlen DB, Rommel D, Haraszti T, Akashi M, De Laporte L. A Layer-by-Layer Single-Cell Coating Technique To Produce Injectable Beating Mini Heart Tissues via Microfluidics. Biomacromolecules 2019; 20:3746-3754. [PMID: 31433624 DOI: 10.1021/acs.biomac.9b00786] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Human induced pluripotent stem cells (hiPSCs) are used as an alternative for human embryonic stem cells. Cardiomyocytes derived from hiPSCs are employed in cardiac tissue regeneration constructs due to the heart's low regeneration capacity after infarction. A coculture of hiPSC-CM and primary dermal fibroblasts is encapsulated in injectable poly(ethylene glycol)-based microgels via microfluidics to enhance the efficiency of regenerative cell transplantations. The microgels are prepared via Michael-type addition of multi-arm PEG-based molecules with an enzymatically degradable peptide as a cross-linker and modified with a cell-adhesive peptide. Cell-cell interactions and, consequently, cell viability are improved by a thin extracellular matrix (ECM) coating formed on the cell surfaces via layer-by-layer (LbL) deposition. The beating strength of encapsulated cardiomyocytes (∼60 BPM) increases by 2-fold compared to noncoated cells. The combination of microfluidics with the LbL technique offers a new technology to fabricate functional cardiac mini tissues for cell transplantation therapies.
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Affiliation(s)
- Luis P B Guerzoni
- DWI Leibniz Institute for Interactive Materials , Forckenbeckstrasse 50 , 52074 Aachen , Germany
| | - Yoshinari Tsukamoto
- Graduate School of Frontier Biosciences , Osaka University , 1-3 Yamadaoka , Suita , Osaka 565-0871 , Japan
| | - David B Gehlen
- DWI Leibniz Institute for Interactive Materials , Forckenbeckstrasse 50 , 52074 Aachen , Germany
| | - Dirk Rommel
- DWI Leibniz Institute for Interactive Materials , Forckenbeckstrasse 50 , 52074 Aachen , Germany
| | - Tamás Haraszti
- DWI Leibniz Institute for Interactive Materials , Forckenbeckstrasse 50 , 52074 Aachen , Germany
| | - Mitsuru Akashi
- Graduate School of Frontier Biosciences , Osaka University , 1-3 Yamadaoka , Suita , Osaka 565-0871 , Japan
| | - Laura De Laporte
- DWI Leibniz Institute for Interactive Materials , Forckenbeckstrasse 50 , 52074 Aachen , Germany.,Institute for Technical and Macromolecular Chemistry , RWTH Aachen , Worringerweg 1-2 , 52074 Aachen , Germany
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47
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Han U, Kim YJ, Kim W, Park JH, Hong J. Construction of nano-scale cellular environments by coating a multilayer nanofilm on the surface of human induced pluripotent stem cells. NANOSCALE 2019; 11:13541-13551. [PMID: 31290516 DOI: 10.1039/c9nr02375e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Interactions with peripheral environments, such as extracellular matrix (ECM) and other cells, and their balance play a crucial role in the maintenance of pluripotency and self-renewal of human pluripotent stem cells. In this study, we focused on a nano-sized artificial cellular environment that is directly attached to the cytoplasmic membrane as a facile method that can effect intercellular interactions at the single-cell level. We designed multilayered nanofilms that are self-assembled on the surface of human induced pluripotent stem cells (iPSCs), by repetitive adsorption of fibronectin and heparin or chondroitin sulfate. However, the surface modification process could also lead to the loss of cell-cell adhesion, which may result in apoptotic cell death. We investigated the proliferation and pluripotency of the iPSCs coated with the nanofilm in order to establish the suitable nanofilm structure and coating conditions. As a result, the cell viability reduced with the increase in the duration of the coating process, but the undifferentiated state and proliferation of the cells were maintained until 2 bilayers were coated. To suppress the dissociation-induced apoptosis, Y-27632, the Rho-associated kinase inhibitor (ROCKi), was added to the coating solution; this allowed the coating of up to 4 bilayers of the nanofilm onto the iPSCs. These results are expected to accelerate the pace of iPSC studies on 3-dimensional cultures and naïve pluripotency, in which the regulation of cellular interactions plays a critical role.
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Affiliation(s)
- Uiyoung Han
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Yu Jin Kim
- Department of Medical Biomaterials Engineering, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea.
| | - Wijin Kim
- Department of Medical Biomaterials Engineering, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea.
| | - Ju Hyun Park
- Department of Medical Biomaterials Engineering, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea.
| | - Jinkee Hong
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
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48
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Cell membrane engineering with synthetic materials: Applications in cell spheroids, cellular glues and microtissue formation. Acta Biomater 2019; 90:21-36. [PMID: 30986529 DOI: 10.1016/j.actbio.2019.04.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 03/26/2019] [Accepted: 04/03/2019] [Indexed: 12/16/2022]
Abstract
Biologically inspired materials with tunable bio- and physicochemical properties provide an essential framework to actively control and support cellular behavior. Cell membrane remodeling approaches benefit from the advances in polymer science and bioconjugation methods, which allow for the installation of un-/natural molecules and particles on the cells' surface. Synthetically remodeled cells have superior properties and are under intense investigation in various therapeutic scenarios as cell delivery systems, bio-sensing platforms, injectable biomaterials and bioinks for 3D bioprinting applications. In this review article, recent advances in the field of cell surface remodeling via bio-chemical means and the potential biomedical applications of these emerging cell hybrids are discussed. STATEMENT OF SIGNIFICANCE: Recent advances in bioconjugation methods, controlled/living polymerizations, microfabrication techniques and 3D printing technologies have enabled researchers to probe specific cellular functions and cues for therapeutic and research purposes through the formation of cell spheroids and polymer-cell chimeras. This review article highlights recent non-genetic cell membrane engineering strategies towards the fabrication of cellular ensembles and microtissues with interest in 3D in vitro modeling, cell therapeutics and tissue engineering. From a wider perspective, these approaches may provide a roadmap for future advances in cell therapies which will expedite the clinical use of cells, thereby improving the quality and accessibility of disease treatments.
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Liu R, Dai J, Ma L, Chen J, Shi X, Du Y, Li Z, Deng H. Low-temperature plasma treatment-assisted layer-by-layer self-assembly for the modification of nanofibrous mats. J Colloid Interface Sci 2019; 540:535-543. [DOI: 10.1016/j.jcis.2019.01.054] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 01/13/2019] [Accepted: 01/14/2019] [Indexed: 01/09/2023]
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Paving the way for successful islet encapsulation. Drug Discov Today 2019; 24:737-748. [PMID: 30738185 DOI: 10.1016/j.drudis.2019.01.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/13/2018] [Accepted: 01/29/2019] [Indexed: 01/02/2023]
Abstract
Type 1 diabetes mellitus (T1DM) is a disorder that decimates pancreatic β-cells which produce insulin. Direct pancreatic islet transplantation cannot serve as a widespread therapeutic modality owing to the need for lifelong immunosuppression and donor shortage. Therefore, several encapsulation techniques have been developed to enclose the islets in semipermeable vehicles that will allow oxygen and nutrient input as well as insulin, other metabolites and waste output, while accomplishing immunoisolation. Although encapsulation technology continues to face significant obstacles, recent advances in material science, stem cell biology and immunology potentially serve as pathways to success. This review summarizes the accomplishments of the past 5 years.
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