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Zhou W, Chai Y, Lu S, Yang Q, Tang L, Zhou D. Advances in the study of tissue-engineered retinal pigment epithelial cell sheets. Regen Ther 2024; 27:419-433. [PMID: 38694444 PMCID: PMC11062139 DOI: 10.1016/j.reth.2024.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 03/22/2024] [Accepted: 04/11/2024] [Indexed: 05/04/2024] Open
Abstract
Regarded as the most promising treatment modality for retinal degenerative diseases, retinal pigment epithelium cell replacement therapy holds significant potential. Common retinal degenerative diseases, including Age-related Macular Degeneration, are frequently characterized by damage to the unit comprising photoreceptors, retinal pigment epithelium, and Bruch's membrane. The selection of appropriate tissue engineering materials, in conjunction with retinal pigment epithelial cells, for graft preparation, can offer an effective treatment for retinal degenerative diseases. This article presents an overview of the research conducted on retinal pigment epithelial cell tissue engineering, outlining the challenges and future prospects.
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Affiliation(s)
- Wang Zhou
- NHC Key Laboratory of Human Stem and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, China
- National Engineering Research Center of Human Stem Cells, Changsha, China
| | - Yujiao Chai
- NHC Key Laboratory of Human Stem and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, China
- National Engineering Research Center of Human Stem Cells, Changsha, China
| | - Shan Lu
- National Engineering Research Center of Human Stem Cells, Changsha, China
- Hunan Guangxiu Hospital, Hunan Normal University, Changsha, China
| | - Qiaohui Yang
- NHC Key Laboratory of Human Stem and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, China
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - Liying Tang
- NHC Key Laboratory of Human Stem and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, China
- National Engineering Research Center of Human Stem Cells, Changsha, China
| | - Di Zhou
- NHC Key Laboratory of Human Stem and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, China
- National Engineering Research Center of Human Stem Cells, Changsha, China
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
- National Center for Drug Evaluation, National Medical Products Administration, Beijing, China
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2
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Kou H, Han Q, Zhang H, Xu C, Liao L, Hou Y, Wang H, Zhang J. Impact of changes in collagen construction and molecular state on integrin - binding properties. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:1523-1536. [PMID: 38574261 DOI: 10.1080/09205063.2024.2338004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 03/21/2024] [Indexed: 04/06/2024]
Abstract
The interaction between the integrin and collagen is important in cell adhesion and signaling. Collagen, as the main component of extracellular matrix, is a base material for tissue engineering constructs. In tissue engineering, the collagen structure and molecule state may be altered to varying degrees in the process of processing and utilizing, thereby affecting its biological properties. In this work, the impact of changes in collagen structure and molecular state on the binding properties of collagen to integrin α2β1 and integrin specific cell adhesion were explored. The results showed that the molecular structure of collagen is destroyed under the influence of heating, freeze-grinding and irradiation, the triple helix integrity is reduced and molecular breaking degree is increased. The binding ability of collagen to integrin α2β1 is increased with the increase of triple helix integrity and decays exponentially with the increase of molecular breaking degree. The collagen molecular state can also influences the binding ability of collagen to cellular receptor. The collagen fibrils binding to integrin α2β1 and HT1080 cells is stronger than to collagen monomolecule. Meanwhile, the hybrid fibril exhibits a different cellular receptor binding performance from corresponding single species collagen fibril. These findings provide ideas for the design and development of new collagen-based biomaterials and tissue engineering research.
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Affiliation(s)
- Huizhi Kou
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Qingqiu Han
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Huihui Zhang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Chengzhi Xu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Lixia Liao
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Yuanjing Hou
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Haibo Wang
- College of Life Science and Technology, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan, China
| | - Juntao Zhang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
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3
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Puistola P, Kethiri A, Nurminen A, Turkki J, Hopia K, Miettinen S, Mörö A, Skottman H. Cornea-Specific Human Adipose Stem Cell-Derived Extracellular Matrix for Corneal Stroma Tissue Engineering. ACS APPLIED MATERIALS & INTERFACES 2024; 16:15761-15772. [PMID: 38513048 PMCID: PMC10995904 DOI: 10.1021/acsami.3c17803] [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: 11/28/2023] [Revised: 01/23/2024] [Accepted: 01/23/2024] [Indexed: 03/23/2024]
Abstract
Utilizing tissue-specific extracellular matrices (ECMs) is vital for replicating the composition of native tissues and developing biologically relevant biomaterials. Human- or animal-derived donor tissues and organs are the current gold standard for the source of these ECMs. To overcome the several limitations related to these ECM sources, including the highly limited availability of donor tissues, cell-derived ECM offers an alternative approach for engineering tissue-specific biomaterials, such as bioinks for three-dimensional (3D) bioprinting. 3D bioprinting is a state-of-the-art biofabrication technology that addresses the global need for donor tissues and organs. In fact, there is a vast global demand for human donor corneas that are used for treating corneal blindness, often resulting from damage in the corneal stromal microstructure. Human adipose tissue is one of the most abundant tissues and easy to access, and adipose tissue-derived stem cells (hASCs) are a highly advantageous cell type for tissue engineering. Furthermore, hASCs have already been studied in clinical trials for treating corneal stromal pathologies. In this study, a corneal stroma-specific ECM was engineered without the need for donor corneas by differentiating hASCs toward corneal stromal keratocytes (hASC-CSKs). Furthermore, this ECM was utilized as a component for corneal stroma-specific bioink where hASC-CSKs were printed to produce corneal stroma structures. This cost-effective approach combined with a clinically relevant cell type provides valuable information on developing more sustainable tissue-specific solutions and advances the field of corneal tissue engineering.
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Affiliation(s)
- Paula Puistola
- Eye
Regeneration Group, Faculty of Medicine and Health Technology, Tampere University, Tampere 33520, Finland
| | - Abhinav Kethiri
- Eye
Regeneration Group, Faculty of Medicine and Health Technology, Tampere University, Tampere 33520, Finland
| | - Antti Nurminen
- Eye
Regeneration Group, Faculty of Medicine and Health Technology, Tampere University, Tampere 33520, Finland
| | - Johannes Turkki
- Eye
Regeneration Group, Faculty of Medicine and Health Technology, Tampere University, Tampere 33520, Finland
| | - Karoliina Hopia
- Eye
Regeneration Group, Faculty of Medicine and Health Technology, Tampere University, Tampere 33520, Finland
| | - Susanna Miettinen
- Adult
Stem Cell Group, Faculty of Medicine and Health Technology, Tampere University, Tampere 33520, Finland
- Tays
Research Services, Wellbeing Services County of Pirkanmaa, Tampere University Hospital, 33520 Tampere, Finland
| | - Anni Mörö
- Eye
Regeneration Group, Faculty of Medicine and Health Technology, Tampere University, Tampere 33520, Finland
| | - Heli Skottman
- Eye
Regeneration Group, Faculty of Medicine and Health Technology, Tampere University, Tampere 33520, Finland
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4
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Sasseville S, Karami S, Tchatchouang A, Charpentier P, Anney P, Gobert D, Proulx S. Biomaterials used for tissue engineering of barrier-forming cell monolayers in the eye. Front Bioeng Biotechnol 2023; 11:1269385. [PMID: 37840667 PMCID: PMC10569698 DOI: 10.3389/fbioe.2023.1269385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/15/2023] [Indexed: 10/17/2023] Open
Abstract
Cell monolayers that form a barrier between two structures play an important role for the maintenance of tissue functionality. In the anterior portion of the eye, the corneal endothelium forms a barrier that controls fluid exchange between the aqueous humor of the anterior chamber and the corneal stroma. This monolayer is central in the pathogenesis of Fuchs endothelial corneal dystrophy (FECD). FECD is a common corneal disease, in which corneal endothelial cells deposit extracellular matrix that increases the thickness of its basal membrane (Descemet's membrane), and forms excrescences (guttae). With time, there is a decrease in endothelial cell density that generates vision loss. Transplantation of a monolayer of healthy corneal endothelial cells on a Descemet membrane substitute could become an interesting alternative for the treatment of this pathology. In the back of the eye, the retinal pigment epithelium (RPE) forms the blood-retinal barrier, controlling fluid exchange between the choriocapillaris and the photoreceptors of the outer retina. In the retinal disease dry age-related macular degeneration (dry AMD), deposits (drusen) form between the RPE and its basal membrane (Bruch's membrane). These deposits hinder fluid exchange, resulting in progressive RPE cell death, which in turn generates photoreceptor cell death, and vision loss. Transplantation of a RPE monolayer on a Bruch's membrane/choroidal stromal substitute to replace the RPE before photoreceptor cell death could become a treatment alternative for this eye disease. This review will present the different biomaterials that are proposed for the engineering of a monolayer of corneal endothelium for the treatment of FECD, and a RPE monolayer for the treatment of dry AMD.
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Affiliation(s)
- Samantha Sasseville
- Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX; Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, QC, Canada
- Département d’ophtalmologie et d’oto-rhino-laryngologie-chirurgie cervico-faciale, Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Samira Karami
- Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX; Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, QC, Canada
- Département d’ophtalmologie et d’oto-rhino-laryngologie-chirurgie cervico-faciale, Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Ange Tchatchouang
- Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX; Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, QC, Canada
- Département d’ophtalmologie et d’oto-rhino-laryngologie-chirurgie cervico-faciale, Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Pascale Charpentier
- Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX; Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, QC, Canada
- Département d’ophtalmologie et d’oto-rhino-laryngologie-chirurgie cervico-faciale, Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Princia Anney
- Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX; Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, QC, Canada
- Département d’ophtalmologie et d’oto-rhino-laryngologie-chirurgie cervico-faciale, Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Delphine Gobert
- Département d’ophtalmologie et d’oto-rhino-laryngologie-chirurgie cervico-faciale, Faculté de Médecine, Université Laval, Québec, QC, Canada
- Centre universitaire d’ophtalmologie (CUO), Hôpital du Saint-Sacrement, CHU de Québec-Université Laval, Québec, QC, Canada
| | - Stéphanie Proulx
- Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX; Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, QC, Canada
- Département d’ophtalmologie et d’oto-rhino-laryngologie-chirurgie cervico-faciale, Faculté de Médecine, Université Laval, Québec, QC, Canada
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Gupta S, Lytvynchuk L, Ardan T, Studenovska H, Sharma R, Faura G, Eide L, Shanker Verma R, Znaor L, Erceg S, Stieger K, Motlik J, Petrovski G, Bharti K. Progress in Stem Cells-Based Replacement Therapy for Retinal Pigment Epithelium: In Vitro Differentiation to In Vivo Delivery. Stem Cells Transl Med 2023; 12:536-552. [PMID: 37459045 PMCID: PMC10427969 DOI: 10.1093/stcltm/szad039] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 05/14/2023] [Indexed: 08/17/2023] Open
Abstract
Retinal pigment epithelium (RPE) is a critical cell monolayer forming the blood-retina-barrier (BRB) and a permeable bridge between the choriocapillaris and the retina. RPE is also crucial in maintaining photoreceptor function and for completing the visual cycle. Loss of the RPE is associated with the development of degenerative diseases like age-related macular degeneration (AMD). To treat diseases like AMD, pluripotent stem cell-derived RPE (pRPE) has been recently explored extensively as a regenerative module. pRPE like other ectodermal tissues requires specific lineage differentiation and long-term in vitro culturing for maturation. Therefore, understanding the differentiation process of RPE could be useful for stem cell-based RPE derivation. Developing pRPE-based transplants and delivering them into the subretinal space is another aspect that has garnered interest in the last decade. In this review, we discuss the basic strategies currently employed for stem cell-based RPE derivation, their delivery, and recent clinical studies related to pRPE transplantation in patients. We have also discussed a few limitations with in vitro RPE culture and potential solutions to overcome such problems which can be helpful in developing functional RPE tissue.
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Affiliation(s)
- Santosh Gupta
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Lyubomyr Lytvynchuk
- Department of Ophthalmology, Justus Liebig University Giessen, University Hospital Giessen and Marburg GmbH, Giessen, Germany
- Department of Ophthalmology, Karl Landsteiner Institute for Retinal Research and Imaging, Vienna, Austria
| | - Taras Ardan
- Laboratory of Cell Regeneration and Cell Plasticity, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Libechov, Czech Republic
| | - Hana Studenovska
- Department of Biomaterials and Bioanalogous Systems, Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Ruchi Sharma
- Ocular and Stem Cell Translational Research, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Georgina Faura
- Department of Medical Biochemistry, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Lars Eide
- Department of Medical Biochemistry, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Rama Shanker Verma
- Stem Cell and Molecular Biology, Laboratory, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences. Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Ljubo Znaor
- Department of Ophthalmology, University of Split School of Medicine and University Hospital Centre, Split, Croatia
| | - Slaven Erceg
- Research Center “Principe Felipe,” Stem Cell Therapies in Neurodegenerative Diseases Laboratory, Valencia, Spain
- Department of Neuroregeneration, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Knut Stieger
- Department of Ophthalmology, Justus Liebig University Giessen, University Hospital Giessen and Marburg GmbH, Giessen, Germany
| | - Jan Motlik
- Laboratory of Cell Regeneration and Cell Plasticity, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Libechov, Czech Republic
| | - Goran Petrovski
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Ophthalmology, University of Split School of Medicine and University Hospital Centre, Split, Croatia
- Department of Ophthalmology, Oslo University Hospital, Oslo, Norway
| | - Kapil Bharti
- Ocular and Stem Cell Translational Research, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
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6
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Gusev AA, Zakharova OV, Vasyukova IA, Osmanov RE, Al-Makhdar YM. [Nanotechnologies in ophthalmology]. Vestn Oftalmol 2023; 139:107-114. [PMID: 37638580 DOI: 10.17116/oftalma2023139041107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
Application of new materials and methods in the diagnosis and treatment of eye diseases is one of the promising research areas in modern ophthalmology. Significant progress has been made in understanding the pathogenesis, diagnosis and treatment of eye diseases using nanotechnologies and nanomaterials. This paper presents the main achievements and results of original research on this issue. It has been shown that nanoparticles are able to overcome biological barriers, deliver drugs to the target site, and provide the required drug release rate. Modern nanotechnological approaches in tissue engineering are also being actively introduced into ophthalmology, making it possible to create nanoframeworks for growing three-dimensional cellular structures, including arrays of pigment epithelium cells and retinal ganglion cells for the treatment of retinal damage caused by degenerative diseases, injuries and infections.
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Affiliation(s)
- A A Gusev
- Tambov State University named after G.R. Derzhavin, Tambov, Russia
- National University of Science and Technology (MISIS), Moscow, Russia
| | - O V Zakharova
- Tambov State University named after G.R. Derzhavin, Tambov, Russia
- National University of Science and Technology (MISIS), Moscow, Russia
- Plekhanov Russian University of Economics, Moscow, Russia
| | - I A Vasyukova
- Tambov State University named after G.R. Derzhavin, Tambov, Russia
| | - R E Osmanov
- Tambov branch of S.N. Fedorov National Medical Research Center "MNTK "Eye Microsurgery", Tambov, Russia
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Mörö A, Samanta S, Honkamäki L, Rangasami VK, Puistola P, Kauppila M, Narkilahti S, Miettinen S, Oommen O, Skottman H. Hyaluronic acid based next generation bioink for 3D bioprinting of human stem cell derived corneal stromal model with innervation. Biofabrication 2022; 15. [PMID: 36579828 DOI: 10.1088/1758-5090/acab34] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 12/13/2022] [Indexed: 12/15/2022]
Abstract
Corneal transplantation remains gold standard for the treatment of severe cornea diseases, however, scarcity of donor cornea is a serious bottleneck. 3D bioprinting holds tremendous potential for cornea tissue engineering (TE). One of the key technological challenges is to design bioink compositions with ideal printability and cytocompatibility. Photo-crosslinking and ionic crosslinking are often used for the stabilization of 3D bioprinted structures, which can possess limitations on biological functionality of the printed cells. Here, we developed a hyaluronic acid-based dopamine containing bioink using hydrazone crosslinking chemistry for the 3D bioprinting of corneal equivalents. First, the shear thinning property, viscosity, and mechanical stability of the bioink were optimized before extrusion-based 3D bioprinting for the shape fidelity and self-healing property characterizations. Subsequently, human adipose stem cells (hASCs) and hASC-derived corneal stromal keratocytes were used for bioprinting corneal stroma structures and their cell viability, proliferation, microstructure and expression of key proteins (lumican, vimentin, connexin 43,α-smooth muscle actin) were evaluated. Moreover, 3D bioprinted stromal structures were implanted intoex vivoporcine cornea to explore tissue integration. Finally, human pluripotent stem cell derived neurons (hPSC-neurons), were 3D bioprinted to the periphery of the corneal structures to analyze innervation. The bioink showed excellent shear thinning property, viscosity, printability, shape fidelity and self-healing properties with high cytocompatibility. Cells in the printed structures displayed good tissue formation and 3D bioprinted cornea structures demonstrated excellentex vivointegration to host tissue as well asin vitroinnervation. The developed bioink and the printed cornea stromal equivalents hold great potential for cornea TE applications.
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Affiliation(s)
- Anni Mörö
- Eye Regeneration Group, Faculty of Medicine and Health Technology, Tampere University, Tampere 33520, Finland
| | - Sumanta Samanta
- Bioengineering and Nanomedicine Lab, Faculty of Medicine and Health Technology, University, Tampere 33720, Finland
| | - Laura Honkamäki
- Neuro Group, Faculty of Medicine and Health Technology, Tampere University, Tampere 33520, Finland
| | - Vignesh K Rangasami
- Bioengineering and Nanomedicine Lab, Faculty of Medicine and Health Technology, University, Tampere 33720, Finland
| | - Paula Puistola
- Eye Regeneration Group, Faculty of Medicine and Health Technology, Tampere University, Tampere 33520, Finland
| | - Maija Kauppila
- Eye Regeneration Group, Faculty of Medicine and Health Technology, Tampere University, Tampere 33520, Finland
| | - Susanna Narkilahti
- Neuro Group, Faculty of Medicine and Health Technology, Tampere University, Tampere 33520, Finland
| | - Susanna Miettinen
- Adult Stem Cell Group, Faculty of Medicine and Health Technology, Tampere University, Tampere 33520, Finland.,Research, Development and Innovation Centre, Tampere University Hospital, Tampere 33520, Finland
| | - Oommen Oommen
- Bioengineering and Nanomedicine Lab, Faculty of Medicine and Health Technology, University, Tampere 33720, Finland
| | - Heli Skottman
- Eye Regeneration Group, Faculty of Medicine and Health Technology, Tampere University, Tampere 33520, Finland
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8
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Li D, Liu Y, Wu N. Application progress of nanotechnology in regenerative medicine of diabetes mellitus. Diabetes Res Clin Pract 2022; 190:109966. [PMID: 35718019 DOI: 10.1016/j.diabres.2022.109966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/20/2022] [Accepted: 06/13/2022] [Indexed: 11/28/2022]
Abstract
In recent years, the development of diabetic regenerative medicine has led to new developments and progress for the clinical treatment of diabetes mellitus and its various complications. Besides, the emergence of nanotechnology has injected new vitality into diabetic regenerative medicine. Nano-stent provides an appropriate direction for the regeneration of islet β cells, retinal tissue, nerve tissue, and wound tissue cells. Conductive nanomaterials promote various tissues' growth. Many nanoparticles also promote wound healing and present other advantages that have solved many potential problems in the practical application of regenerative medicine. In this review, we will summarize the application of nanotechnology in diabetic regenerative medicine.
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Affiliation(s)
- Danyang Li
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang 110004, PR China
| | - Yuxin Liu
- Student Affairs Department, Shengjing Hospital of China Medical University, Shenyang 110004, PR China
| | - Na Wu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang 110004, PR China; Clinical Skills Practice Teaching Center, Shengjing Hospital of China Medical University, Shenyang 110004, PR China.
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9
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Molins B, Mesquida M, Adan A. Bioengineering approaches for modelling retinal pathologies of the outer blood-retinal barrier. Prog Retin Eye Res 2022:101097. [PMID: 35840488 DOI: 10.1016/j.preteyeres.2022.101097] [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] [Received: 09/23/2021] [Revised: 05/31/2022] [Accepted: 06/29/2022] [Indexed: 11/18/2022]
Abstract
Alterations of the junctional complex of the outer blood-retinal barrier (oBRB), which is integrated by the close interaction of the retinal pigment epithelium, the Bruch's membrane, and the choriocapillaris, contribute to the loss of neuronal signalling and subsequent vision impairment in several retinal inflammatory disorders such as age-related macular degeneration and diabetic retinopathy. Reductionist approaches into the mechanisms that underlie such diseases have been hindered by the absence of adequate in vitro models using human cells to provide the 3D dynamic architecture that enables expression of the in vivo phenotype of the oBRB. Conventional in vitro cell models are based on 2D monolayer cellular cultures, unable to properly recapitulate the complexity of living systems. The main drawbacks of conventional oBRB models also emerge from the cell sourcing, the lack of an appropriate Bruch's membrane analogue, and the lack of choroidal microvasculature with flow. In the last years, the advent of organ-on-a-chip, bioengineering, and stem cell technologies is providing more advanced 3D models with flow, multicellularity, and external control over microenvironmental properties. By incorporating additional biological complexity, organ-on-a-chip devices can mirror physiologically relevant properties of the native tissue while offering additional set ups to model and study disease. In this review we first examine the current understanding of oBRB biology as a functional unit, highlighting the coordinated contribution of the different components to barrier function in health and disease. Then we describe recent advances in the use of pluripotent stem cells-derived retinal cells, Bruch's membrane analogues, and co-culture techniques to recapitulate the oBRB. We finally discuss current advances and challenges of oBRB-on-a-chip technologies for disease modelling.
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Affiliation(s)
- Blanca Molins
- Group of Ocular Inflammation: Clinical and Experimental Studies, Institut d'Investigacions Biomèdiques Agustí Pi I Sunyer (IDIBAPS), C/ Sabino de Arana 1, 08028, Barcelona, Spain.
| | - Marina Mesquida
- Group of Ocular Inflammation: Clinical and Experimental Studies, Institut d'Investigacions Biomèdiques Agustí Pi I Sunyer (IDIBAPS), C/ Sabino de Arana 1, 08028, Barcelona, Spain; Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Alfredo Adan
- Group of Ocular Inflammation: Clinical and Experimental Studies, Institut d'Investigacions Biomèdiques Agustí Pi I Sunyer (IDIBAPS), C/ Sabino de Arana 1, 08028, Barcelona, Spain; Instituto Clínic de Oftalmología, Hospital Clínic Barcelona, C/ Sabino de Arana 1, 08028, Barcelona, Spain
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10
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Gullapalli VK, Zarbin MA. New Prospects for Retinal Pigment Epithelium Transplantation. Asia Pac J Ophthalmol (Phila) 2022; 11:302-313. [PMID: 36041145 DOI: 10.1097/apo.0000000000000521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/28/2022] [Indexed: 11/26/2022] Open
Abstract
ABSTRACT Retinal pigment epithelium (RPE) transplants rescue photoreceptors in selected animal models of retinal degenerative disease. Early clinical studies of RPE transplants as treatment for age-related macular degeneration (AMD) included autologous and allogeneic transplants of RPE suspensions and RPE sheets for atrophic and neovascular complications of AMD. Subsequent studies explored autologous RPE-Bruch membrane-choroid transplants in patients with neovascular AMD with occasional marked visual benefit, which establishes a rationale for RPE transplants in late-stage AMD. More recent work has involved transplantation of autologous and allogeneic stem cell-derived RPE for patients with AMD and those with Stargardt disease. These early-stage clinical trials have employed RPE suspensions and RPE monolayers on biocompatible scaffolds. Safety has been well documented, but evidence of efficacy is variable. Current research involves development of better scaffolds, improved modulation of immune surveillance, and modification of the extracellular milieu to improve RPE survival and integration with host retina.
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Affiliation(s)
| | - Marco A Zarbin
- Iinstitute of Ophthalmology and visual Science, Rutgers-New Jersey Medical School, Rutgers University, Newark, NJ, US
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11
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Bacterial cellulose and its potential for biomedical applications. Biotechnol Adv 2021; 53:107856. [PMID: 34666147 DOI: 10.1016/j.biotechadv.2021.107856] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 10/09/2021] [Accepted: 10/10/2021] [Indexed: 12/11/2022]
Abstract
Bacterial cellulose (BC) is an important polysaccharide synthesized by some bacterial species under specific culture conditions, which presents several remarkable features such as microporosity, high water holding capacity, good mechanical properties and good biocompatibility, making it a potential biomaterial for medical applications. Since its discovery, BC has been used for wound dressing, drug delivery, artificial blood vessels, bone tissue engineering, and so forth. Additionally, BC can be simply manipulated to form its derivatives or composites with enhanced physicochemical and functional properties. Several polymers, carbon-based nanomaterials, and metal nanoparticles (NPs) have been introduced into BC by ex situ and in situ methods to design hybrid materials with enhanced functional properties. This review provides comprehensive knowledge and highlights recent advances in BC production strategies, its structural features, various in situ and ex situ modification techniques, and its potential for biomedical applications.
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Andonegi M, Carranza T, Etxabide A, de la Caba K, Guerrero P. 3D-Printed Mucoadhesive Collagen Scaffolds as a Local Tetrahydrocurcumin Delivery System. Pharmaceutics 2021; 13:pharmaceutics13101697. [PMID: 34683989 PMCID: PMC8540040 DOI: 10.3390/pharmaceutics13101697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 10/11/2021] [Accepted: 10/13/2021] [Indexed: 11/16/2022] Open
Abstract
Native collagen doughs were processed using a syringe-based extrusion 3D printer to obtain collagen scaffolds. Before processing, the rheological properties of the doughs were analyzed to determine the optimal 3D printing conditions. Samples showed a high shear-thinning behavior, reported beneficial in the 3D printing process. In addition, tetrahydrocurcumin (THC) was incorporated into the dough formulation and its effect on collagen structure, as well as the resulting scaffold's suitability for wound healing applications, were assessed. The denaturation peak observed by differential scanning calorimetry (DSC), along with the images of the scaffolds' surfaces assessed using scanning electron microscopy (SEM), showed that the fibrillar structure of collagen was maintained. These outcomes were correlated with X-ray diffraction (XRD) results, which showed an increase of the lateral packaging of collagen chains was observed in the samples with a THC content up to 4%, while a higher content of THC considerably decreased the structural order of collagen. Furthermore, physical interactions between collagen and THC molecules were observed using Fourier transform infrared (FTIR) spectroscopy. Additionally, all samples showed swelling and a controlled release of THC. These results along with the mucoadhesive properties of collagen suggested the potential of these THC-collagen scaffolds as sustained THC delivery systems.
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Affiliation(s)
- Mireia Andonegi
- BIOMAT Research Group, Escuela de Ingeniería de Gipuzkoa, University of the Basque Country (UPV/EHU), Plaza de Europa 1, 20018 Donostia-San Sebastián, Spain; (M.A.); (A.E.)
| | | | - Alaitz Etxabide
- BIOMAT Research Group, Escuela de Ingeniería de Gipuzkoa, University of the Basque Country (UPV/EHU), Plaza de Europa 1, 20018 Donostia-San Sebastián, Spain; (M.A.); (A.E.)
| | - Koro de la Caba
- BIOMAT Research Group, Escuela de Ingeniería de Gipuzkoa, University of the Basque Country (UPV/EHU), Plaza de Europa 1, 20018 Donostia-San Sebastián, Spain; (M.A.); (A.E.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
- Correspondence: (K.d.l.C.); (P.G.)
| | - Pedro Guerrero
- BIOMAT Research Group, Escuela de Ingeniería de Gipuzkoa, University of the Basque Country (UPV/EHU), Plaza de Europa 1, 20018 Donostia-San Sebastián, Spain; (M.A.); (A.E.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
- Proteinmat Materials SL, Avenida de Tolosa 72, 20018 Donostia-San Sebastian, Spain
- Correspondence: (K.d.l.C.); (P.G.)
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13
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Cavallaro G, Micciulla S, Chiappisi L, Lazzara G. Chitosan-based smart hybrid materials: a physico-chemical perspective. J Mater Chem B 2021; 9:594-611. [PMID: 33305783 DOI: 10.1039/d0tb01865a] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Chitosan is one of the most studied cationic polysaccharides. Due to its unique characteristics of being water soluble, biocompatible, biodegradable, and non-toxic, this macromolecule is highly attractive for a broad range of applications. In addition, its complex behavior and the number of ways it interacts with different components in a system result in an astonishing variety of chitosan-based materials. Herein, we present recent advances in the field of chitosan-based materials from a physico-chemical perspective, with focus on aqueous mixtures with oppositely charged colloids, chitosan-based thin films, and nanocomposite systems. In this review, we focus our attention on the physico-chemical properties of chitosan-based materials, including solubility, mechanical resistance, barrier properties, and thermal behaviour, and provide a link to the chemical peculiarities of chitosan, such as its intrinsic low solubility, high rigidity, large charge separation, and strong tendency to form intra- and inter-molecular hydrogen bonds.
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Affiliation(s)
- Giuseppe Cavallaro
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze pad 17, 90128 Palermo, Italy.
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Ruiz-Alonso S, Villate-Beitia I, Gallego I, Lafuente-Merchan M, Puras G, Saenz-del-Burgo L, Pedraz JL. Current Insights Into 3D Bioprinting: An Advanced Approach for Eye Tissue Regeneration. Pharmaceutics 2021; 13:pharmaceutics13030308. [PMID: 33653003 PMCID: PMC7996883 DOI: 10.3390/pharmaceutics13030308] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/17/2021] [Accepted: 02/19/2021] [Indexed: 12/19/2022] Open
Abstract
Three-dimensional (3D) printing is a game changer technology that holds great promise for a wide variety of biomedical applications, including ophthalmology. Through this emerging technique, specific eye tissues can be custom-fabricated in a flexible and automated way, incorporating different cell types and biomaterials in precise anatomical 3D geometries. However, and despite the great progress and possibilities generated in recent years, there are still challenges to overcome that jeopardize its clinical application in regular practice. The main goal of this review is to provide an in-depth understanding of the current status and implementation of 3D bioprinting technology in the ophthalmology field in order to manufacture relevant tissues such as cornea, retina and conjunctiva. Special attention is paid to the description of the most commonly employed bioprinting methods, and the most relevant eye tissue engineering studies performed by 3D bioprinting technology at preclinical level. In addition, other relevant issues related to use of 3D bioprinting for ocular drug delivery, as well as both ethical and regulatory aspects, are analyzed. Through this review, we aim to raise awareness among the research community and report recent advances and future directions in order to apply this advanced therapy in the eye tissue regeneration field.
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Affiliation(s)
- Sandra Ruiz-Alonso
- NanoBioCel Research Group, Laboratory of Pharmacy and Pharmaceutical Technology, Department of Pharmacy and Food Science, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (S.R.-A.); (I.V.-B.); (I.G.); (M.L.-M.); (G.P.)
- Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, 28029 Madrid, Spain
- Bioaraba, NanoBioCel Research Group, 01009 Vitoria-Gasteiz, Spain
| | - Ilia Villate-Beitia
- NanoBioCel Research Group, Laboratory of Pharmacy and Pharmaceutical Technology, Department of Pharmacy and Food Science, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (S.R.-A.); (I.V.-B.); (I.G.); (M.L.-M.); (G.P.)
- Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, 28029 Madrid, Spain
- Bioaraba, NanoBioCel Research Group, 01009 Vitoria-Gasteiz, Spain
| | - Idoia Gallego
- NanoBioCel Research Group, Laboratory of Pharmacy and Pharmaceutical Technology, Department of Pharmacy and Food Science, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (S.R.-A.); (I.V.-B.); (I.G.); (M.L.-M.); (G.P.)
- Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, 28029 Madrid, Spain
- Bioaraba, NanoBioCel Research Group, 01009 Vitoria-Gasteiz, Spain
| | - Markel Lafuente-Merchan
- NanoBioCel Research Group, Laboratory of Pharmacy and Pharmaceutical Technology, Department of Pharmacy and Food Science, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (S.R.-A.); (I.V.-B.); (I.G.); (M.L.-M.); (G.P.)
- Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, 28029 Madrid, Spain
- Bioaraba, NanoBioCel Research Group, 01009 Vitoria-Gasteiz, Spain
| | - Gustavo Puras
- NanoBioCel Research Group, Laboratory of Pharmacy and Pharmaceutical Technology, Department of Pharmacy and Food Science, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (S.R.-A.); (I.V.-B.); (I.G.); (M.L.-M.); (G.P.)
- Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, 28029 Madrid, Spain
- Bioaraba, NanoBioCel Research Group, 01009 Vitoria-Gasteiz, Spain
| | - Laura Saenz-del-Burgo
- NanoBioCel Research Group, Laboratory of Pharmacy and Pharmaceutical Technology, Department of Pharmacy and Food Science, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (S.R.-A.); (I.V.-B.); (I.G.); (M.L.-M.); (G.P.)
- Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, 28029 Madrid, Spain
- Bioaraba, NanoBioCel Research Group, 01009 Vitoria-Gasteiz, Spain
- Correspondence: (L.S.-d.-B.); (J.L.P.); Tel.: +(34)-945014542 (L.S.-d.-B.); +(34)-945013091 (J.L.P.)
| | - José Luis Pedraz
- NanoBioCel Research Group, Laboratory of Pharmacy and Pharmaceutical Technology, Department of Pharmacy and Food Science, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (S.R.-A.); (I.V.-B.); (I.G.); (M.L.-M.); (G.P.)
- Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, 28029 Madrid, Spain
- Bioaraba, NanoBioCel Research Group, 01009 Vitoria-Gasteiz, Spain
- Correspondence: (L.S.-d.-B.); (J.L.P.); Tel.: +(34)-945014542 (L.S.-d.-B.); +(34)-945013091 (J.L.P.)
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Culture surface protein coatings affect the barrier properties and calcium signalling of hESC-RPE. Sci Rep 2021; 11:933. [PMID: 33441679 PMCID: PMC7806758 DOI: 10.1038/s41598-020-79638-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 12/04/2020] [Indexed: 12/29/2022] Open
Abstract
Human pluripotent stem cell-derived retinal pigment epithelium (RPE) transplantation is currently under evaluation as treatment for macular degeneration. For therapeutic applications, cryostorage during cell production is typically needed with potential consequences to cell functionality. We have previously shown that the culture substrate affects human embryonic stem cell-derived RPE (hESC-RPE) properties in fresh cultures. Here, we aimed to further identify the role of RPE basement membrane proteins type IV collagen (Col-IV), laminin (LN), and nidogen-1 in the maturation and functionality of hESC-RPE after cryopreservation. In addition to cell attachment and morphology, transepithelial electrical resistance, expression of key RPE proteins, phagocytosis capacity and Ca2+ signalling were analysed. After cryostorage, attachment of hESC-RPE on culture surfaces coated with Col-IV alone was poor. Combining Col-IV and LN with or without nidogen-1 significantly improved cell attachment and barrier properties of the epithelium. Furthermore, functional homogeneity of the hESC-RPE monolayer was enhanced in the presence of nidogen-1. Our results suggest that the choice of coating proteins for the cell culture may have implications to the functional properties of these cells after cryostorage cell banking.
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16
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Andonegi M, Heras KL, Santos-Vizcaíno E, Igartua M, Hernandez RM, de la Caba K, Guerrero P. Structure-properties relationship of chitosan/collagen films with potential for biomedical applications. Carbohydr Polym 2020; 237:116159. [PMID: 32241409 DOI: 10.1016/j.carbpol.2020.116159] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 03/09/2020] [Accepted: 03/09/2020] [Indexed: 01/22/2023]
Abstract
Chitosan/collagen films were developed and characterized in order to assess the suitability of these films for biomedical applications. Hence, physicochemical, thermal, barrier and mechanical properties were analyzed and related to the film structure, which showed the prevalence of the triple helix of native collagen after the addition of chitosan. Furthermore, collagen fiber diameter changed from 3.9 ± 0.6 μm, for collagen films without chitosan, to 1.8 ± 0.5 μm, for collagen films with low molecular weight chitosan. These results suggested interactions between collagen and chitosan molecules, as observed by Fourier transform infrared (FTIR) analysis. Regarding film barrier properties, chitosan/collagen films showed a water vapor transmission rate around 1174 g m-2 day-1, suitable for biomedical applications such as wound healing. Additionally, biological tests confirmed that the chitosan/collagen films developed are suitable for biomedical applications.
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Affiliation(s)
- Mireia Andonegi
- BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, Plaza de Europa 1, 20018, Donostia-San Sebastián, Spain
| | - Kevin Las Heras
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain
| | - Edorta Santos-Vizcaíno
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz, Spain
| | - Manoli Igartua
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz, Spain
| | - Rosa Maria Hernandez
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz, Spain
| | - Koro de la Caba
- BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, Plaza de Europa 1, 20018, Donostia-San Sebastián, Spain.
| | - Pedro Guerrero
- BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, Plaza de Europa 1, 20018, Donostia-San Sebastián, Spain.
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Murphy AR, Truong YB, O'Brien CM, Glattauer V. Bio-inspired human in vitro outer retinal models: Bruch's membrane and its cellular interactions. Acta Biomater 2020; 104:1-16. [PMID: 31945506 DOI: 10.1016/j.actbio.2020.01.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 01/07/2020] [Accepted: 01/09/2020] [Indexed: 12/17/2022]
Abstract
Retinal degenerative disorders, such as age-related macular degeneration (AMD), are one of the leading causes of blindness worldwide, however, treatments to completely stop the progression of these debilitating conditions are non-existent. Researchers require sophisticated models that can accurately represent the native structure of human retinal tissue to study these disorders. Current in vitro models used to study the retina are limited in their ability to fully recapitulate the structure and function of the retina, Bruch's membrane and the underlying choroid. Recent developments in the field of induced pluripotent stem cell technology has demonstrated the capability of retinal pigment epithelial cells to recapitulate AMD-like pathology. However, such studies utilise unsophisticated, bio-inert membranes to act as Bruch's membrane and support iPSC-derived retinal cells. This review presents a concise summary of the properties and function of the Bruch's membrane-retinal pigment epithelium complex, the initial pathogenic site of AMD as well as the current status for materials and fabrication approaches used to generate in vitro models of this complex tissue. Finally, this review explores required advances in the field of in vitro retinal modelling. STATEMENT OF SIGNIFICANCE: Retinal degenerative disorders such as age-related macular degeneration are worldwide leading causes of blindness. Previous attempts to model the Bruch's membrane-retinal pigment epithelial complex, the initial pathogenic site of age-related macular degeneration, have lacked the sophistication to elucidate valuable insights into disease mechanisms. Here we provide a detailed account of the morphological, physical and chemical properties of Bruch's membrane which may aid the fabrication of more sophisticated and physiologically accurate in vitro models of the retina, as well as various fabrication techniques to recreate this structure. This review also further highlights some recent advances in some additional challenging aspects of retinal tissue modelling including integrated fluid flow and photoreceptor alignment.
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Affiliation(s)
- Ashley R Murphy
- CSIRO Manufacturing, Research Way, Clayton, VIC 3168, Australia.
| | - Yen B Truong
- CSIRO Manufacturing, Research Way, Clayton, VIC 3168, Australia
| | - Carmel M O'Brien
- CSIRO Manufacturing, Research Way, Clayton, VIC 3168, Australia; Australian Regenerative Medicine Institute, Science, Technology, Research and Innovation Precinct (STRIP), Monash University, Clayton Campus, Wellington Road, Clayton, VIC 3800, Australia
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Co-culture of human induced pluripotent stem cell-derived retinal pigment epithelial cells and endothelial cells on double collagen-coated honeycomb films. Acta Biomater 2020; 101:327-343. [PMID: 31711900 DOI: 10.1016/j.actbio.2019.11.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 10/25/2019] [Accepted: 11/01/2019] [Indexed: 12/28/2022]
Abstract
In vitro cell culture models representing the physiological and pathological features of the outer retina are urgently needed. Artificial tissue replacements for patients suffering from degenerative retinal diseases are similarly in great demand. Here, we developed a co-culture system based solely on the use of human induced pluripotent stem cell (hiPSC)-derived cells. For the first time, hiPSC-derived retinal pigment epithelium (RPE) and endothelial cells (EC) were cultured on opposite sides of porous polylactide substrates prepared by breath figures (BF), where both surfaces had been collagen-coated by Langmuir-Schaefer (LS) technology. Small modifications of casting conditions during material preparation allowed the production of free-standing materials with distinct porosity, wettability and ion diffusion capacity. Complete pore coverage was achieved by the collagen coating procedure, resulting in a detectable nanoscale topography. Primary retinal endothelial cells (ACBRI181) and umbilical cord vein endothelial cells (hUVEC) were utilised as EC references. Mono-cultures of all ECs were prepared for comparison. All tested materials supported cell attachment and growth. In mono-culture, properties of the materials had a major effect on the growth of all ECs. In co-culture, the presence of hiPSC-RPE affected the primary ECs more significantly than hiPSC-EC. In consistency, hiPSC-RPE were also less affected by hiPSC-EC than by the primary ECs. Finally, our results show that the modulation of the porosity of the materials can promote or prevent EC migration. In short, we showed that the behaviour of the cells is highly dependent on the three main variables of the study: the presence of a second cell type in co-culture, the source of endothelial cells and the biomaterial properties. The combination of BF and LS methodologies is a powerful strategy to develop thin but stable materials enabling cell growth and modulation of cell-cell contact. STATEMENT OF SIGNIFICANCE: Artificial blood-retinal barriers (BRB), mimicking the interface at the back of the eye, are urgently needed as physiological and disease models, and for tissue transplantation targeting patients suffering from degenerative retinal diseases. Here, we developed a new co-culture model based on thin, biodegradable porous films, coated on both sides with collagen, one of the main components of the natural BRB, and cultivated endothelial and retinal pigment epithelial cells on opposite sides of the films, forming a three-layer structure. Importantly, our hiPSC-EC and hiPSC-RPE co-culture model is the first to exclusively use human induced pluripotent stem cells as cell source, which have been widely regarded as an practical candidate for therapeutic applications in regenerative medicine.
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Porous polybutylene succinate films enabling adhesion of human embryonic stem cell-derived retinal pigment epithelial cells (hESC-RPE). Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.05.041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Controlled degradable chitosan/collagen composite scaffolds for application in nerve tissue regeneration. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.05.023] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ilmarinen T, Thieltges F, Hongisto H, Juuti‐Uusitalo K, Koistinen A, Kaarniranta K, Brinken R, Braun N, Holz FG, Skottman H, Stanzel BV. Survival and functionality of xeno-free human embryonic stem cell-derived retinal pigment epithelial cells on polyester substrate after transplantation in rabbits. Acta Ophthalmol 2019; 97:e688-e699. [PMID: 30593729 DOI: 10.1111/aos.14004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 11/21/2018] [Indexed: 01/08/2023]
Abstract
PURPOSE To study immunogenic properties of human embryonic stem cell-derived retinal pigment epithelium (hESC-RPE) and to evaluate subretinal xenotransplantation of hESC-RPE on porous polyethylene terephthalate (PET) in rabbits. METHODS Human ESC-RPE cells were characterized by morphology, transepithelial electrical resistance (TER), protein expression and photoreceptor outer segment phagocytosis in vitro. Expression of major histocompatibility complex (MHC) proteins was assessed in conventionally or xeno-free produced hESC-RPE ± interferon-gamma (IFN-γ) stimulation (n = 1). Xeno-free hESC-RPE on PET with TER < 200 Ω·cm2 > or PET alone were transplanted into 18 rabbits with short-term triamcinolone ± extended tacrolimus immunosuppression. Rabbits were monitored by spectral domain optical coherence tomography. After 4 weeks, the eyes were processed for histology and transmission electron microscopy. RESULTS Upon in vitro IFN-γ stimulation, xeno-free hESC-RPE expressed lower level of MHC-II proteins compared to the conventional cells. Outer nuclear layer (ONL) atrophy was observed over the graft in most cases 4 weeks post-transplantation. In 3/4 animals with high TER hESC-RPE, but only in 1/3 animals with low TER hESC-RPE, ONL atrophy was observed already within 1 week. Retinal cell infiltrations were more frequent in animals with high TER hESC-RPE. However, the difference was not statistically significant. In three animals, preservation of ONL was observed. Weekly intravitreal tacrolimus did not affect ONL preservation. In all animals, hESC-RPE cells survived for 4 weeks, but without tacrolimus, enlarged vacuoles accumulated in hESC-RPE (n = 1). CONCLUSIONS Xenografted xeno-free hESC-RPE monolayers can survive and retain some functionality for 4 weeks following short-term immunosuppression. The preliminary findings of this study suggest that further investigations to improve transplantation success of hESC-RPE xenografts in rabbits should be addressed especially toward the roles of hESC-RPE maturation stage and extended intravitreal immunosuppression.
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Affiliation(s)
- Tanja Ilmarinen
- BioMediTech Institute Faculty of Medicine and Life Sciences University of Tampere Tampere Finland
| | | | - Heidi Hongisto
- BioMediTech Institute Faculty of Medicine and Life Sciences University of Tampere Tampere Finland
- Department of Ophthalmology Institute of Clinical Medicine University of Eastern Finland Kuopio Finland
| | - Kati Juuti‐Uusitalo
- BioMediTech Institute Faculty of Medicine and Life Sciences University of Tampere Tampere Finland
| | | | - Kai Kaarniranta
- Department of Ophthalmology Institute of Clinical Medicine University of Eastern Finland Kuopio Finland
- Department of Ophthalmology Kuopio University Hospital Kuopio Finland
| | - Ralf Brinken
- Department of Ophthalmology University of Bonn Bonn Germany
| | | | - Frank G. Holz
- Department of Ophthalmology University of Bonn Bonn Germany
| | - Heli Skottman
- BioMediTech Institute Faculty of Medicine and Life Sciences University of Tampere Tampere Finland
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22
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Sahle FF, Kim S, Niloy KK, Tahia F, Fili CV, Cooper E, Hamilton DJ, Lowe TL. Nanotechnology in regenerative ophthalmology. Adv Drug Deliv Rev 2019; 148:290-307. [PMID: 31707052 PMCID: PMC7474549 DOI: 10.1016/j.addr.2019.10.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/29/2019] [Accepted: 10/30/2019] [Indexed: 12/18/2022]
Abstract
In recent years, regenerative medicine is gaining momentum and is giving hopes for restoring function of diseased, damaged, and aged tissues and organs and nanotechnology is serving as a catalyst. In the ophthalmology field, various types of allogenic and autologous stem cells have been investigated to treat some ocular diseases due to age-related macular degeneration, glaucoma, retinitis pigmentosa, diabetic retinopathy, and corneal and lens traumas. Nanomaterials have been utilized directly as nanoscaffolds for these stem cells to promote their adhesion, proliferation and differentiation or indirectly as vectors for various genes, tissue growth factors, cytokines and immunosuppressants to facilitate cell reprogramming or ocular tissue regeneration. In this review, we reviewed various nanomaterials used for retina, cornea, and lens regenerations, and discussed the current status and future perspectives of nanotechnology in tracking cells in the eye and personalized regenerative ophthalmology. The purpose of this review is to provide comprehensive and timely insights on the emerging field of nanotechnology for ocular tissue engineering and regeneration.
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Affiliation(s)
- Fitsum Feleke Sahle
- Department of Pharmaceutical Sciences, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - Sangyoon Kim
- Department of Pharmaceutical Sciences, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - Kumar Kulldeep Niloy
- Department of Pharmaceutical Sciences, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - Faiza Tahia
- Department of Pharmaceutical Sciences, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - Cameron V Fili
- Department of Comparative Medicine, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - Emily Cooper
- Department of Pharmaceutical Sciences, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - David J Hamilton
- Department of Comparative Medicine, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - Tao L Lowe
- Department of Pharmaceutical Sciences, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA.
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Paek J, Park SE, Lu Q, Park KT, Cho M, Oh JM, Kwon KW, Yi YS, Song JW, Edelstein HI, Ishibashi J, Yang W, Myerson JW, Kiseleva RY, Aprelev P, Hood ED, Stambolian D, Seale P, Muzykantov VR, Huh D. Microphysiological Engineering of Self-Assembled and Perfusable Microvascular Beds for the Production of Vascularized Three-Dimensional Human Microtissues. ACS NANO 2019; 13:7627-7643. [PMID: 31194909 DOI: 10.1021/acsnano.9b00686] [Citation(s) in RCA: 119] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The vasculature is an essential component of the circulatory system that plays a vital role in the development, homeostasis, and disease of various organs in the human body. The ability to emulate the architecture and transport function of blood vessels in the integrated context of their associated organs represents an important requirement for studying a wide range of physiological processes. Traditional in vitro models of the vasculature, however, largely fail to offer such capabilities. Here we combine microfluidic three-dimensional (3D) cell culture with the principle of vasculogenic self-assembly to engineer perfusable 3D microvascular beds in vitro. Our system is created in a micropatterned hydrogel construct housed in an elastomeric microdevice that enables coculture of primary human vascular endothelial cells and fibroblasts to achieve de novo formation, anastomosis, and controlled perfusion of 3D vascular networks. An open-top chamber design adopted in this hybrid platform also makes it possible to integrate the microengineered 3D vasculature with other cell types to recapitulate organ-specific cellular heterogeneity and structural organization of vascularized human tissues. Using these capabilities, we developed stem cell-derived microphysiological models of vascularized human adipose tissue and the blood-retinal barrier. Our approach was also leveraged to construct a 3D organotypic model of vascularized human lung adenocarcinoma as a high-content drug screening platform to simulate intravascular delivery, tumor-killing effects, and vascular toxicity of a clinical chemotherapeutic agent. Furthermore, we demonstrated the potential of our platform for applications in nanomedicine by creating microengineered models of vascular inflammation to evaluate a nanoengineered drug delivery system based on active targeting liposomal nanocarriers. These results represent a significant improvement in our ability to model the complexity of native human tissues and may provide a basis for developing predictive preclinical models for biopharmaceutical applications.
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24
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Liaw BS, Xing F, Wang D, Gao F, Lu J, Yu J, Sun X, Wang X, Feng Q, Zhang G, Zhao L. Effect of in vitro collagen fibrillogenesis on Langmuir-Blodgett (LB) deposition for cellular behavior regulation. Colloids Surf B Biointerfaces 2019; 179:48-55. [DOI: 10.1016/j.colsurfb.2019.03.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 03/22/2019] [Accepted: 03/24/2019] [Indexed: 11/29/2022]
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25
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Harjumäki R, Nugroho RWN, Zhang X, Lou YR, Yliperttula M, Valle-Delgado JJ, Österberg M. Quantified forces between HepG2 hepatocarcinoma and WA07 pluripotent stem cells with natural biomaterials correlate with in vitro cell behavior. Sci Rep 2019; 9:7354. [PMID: 31089156 PMCID: PMC6517585 DOI: 10.1038/s41598-019-43669-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 04/16/2019] [Indexed: 12/20/2022] Open
Abstract
In vitro cell culture or tissue models that mimic in vivo cellular response have potential in tissue engineering and regenerative medicine, and are a more economical and accurate option for drug toxicity tests than animal experimentation. The design of in vivo-like cell culture models should take into account how the cells interact with the surrounding materials and how these interactions affect the cell behavior. Cell-material interactions are furthermore important in cancer metastasis and tumor progression, so deeper understanding of them can support the development of new cancer treatments. Herein, the colloidal probe microscopy technique was used to quantify the interactions of two cell lines (human pluripotent stem cell line WA07 and human hepatocellular carcinoma cell line HepG2) with natural, xeno-free biomaterials of different chemistry, morphology, and origin. Key components of extracellular matrices -human collagens I and IV, and human recombinant laminin-521-, as well as wood-derived, cellulose nanofibrils -with evidenced potential for 3D cell culture and tissue engineering- were analysed. Both strength of adhesion and force curve profiles depended on biomaterial nature and cell characteristics. The successful growth of the cells on a particular biomaterial required cell-biomaterial adhesion energies above 0.23 nJ/m. The information obtained in this work supports the development of new materials or hybrid scaffolds with tuned cell adhesion properties for tissue engineering, and provides a better understanding of the interactions of normal and cancerous cells with biomaterials in the human body.
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Affiliation(s)
- Riina Harjumäki
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076, Aalto, Finland
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, FI-00014, Helsinki, Finland
| | - Robertus Wahyu N Nugroho
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076, Aalto, Finland
| | - Xue Zhang
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076, Aalto, Finland
| | - Yan-Ru Lou
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, FI-00014, Helsinki, Finland
| | - Marjo Yliperttula
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, FI-00014, Helsinki, Finland
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, I-35131, Padova, Italy
| | - Juan José Valle-Delgado
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076, Aalto, Finland.
| | - Monika Österberg
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076, Aalto, Finland.
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26
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Bhuvanesh T, Machatschek R, Lysyakova L, Kratz K, Schulz B, Ma N, Lendlein A. Collagen type-IV Langmuir and Langmuir-Schäfer layers as model biointerfaces to direct stem cell adhesion. ACTA ACUST UNITED AC 2019; 14:024101. [PMID: 30524033 DOI: 10.1088/1748-605x/aaf464] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In biomaterial development, the design of material surfaces that mimic the extra-cellular matrix (ECM) in order to achieve favorable cellular instruction is rather challenging. Collagen-type IV (Col-IV), the major scaffolding component of Basement Membranes (BM), a specialized ECM with multiple biological functions, has the propensity to form networks by self-assembly and supports adhesion of cells such as endothelial cells or stem cells. The preparation of biomimetic Col-IV network-like layers to direct cell responses is difficult. We hypothesize that the morphology of the layer, and especially the density of the available adhesion sites, regulates the cellular adhesion to the layer. The Langmuir monolayer technique allows for preparation of thin layers with precisely controlled packing density at the air-water (A-W) interface. Transferring these layers onto cell culture substrates using the Langmuir-Schäfer (LS) technique should therefore provide a pathway for preparation of BM mimicking layers with controlled cell adherence properties. In situ characterization using ellipsometry and polarization modulation-infrared reflection absorption spectroscopy of Col-IV layer during compression at the A-W interface reveal that there is linear increase of surface molecule concentration with negligible orientational changes up to a surface pressure of 25 mN m-1. Smooth and homogeneous Col-IV network-like layers are successfully transferred by LS method at 15 mN m-1 onto poly(ethylene terephthalate) (PET), which is a common substrate for cell culture. In contrast, the organization of Col-IV on PET prepared by the traditionally employed solution deposition method results in rather inhomogeneous layers with the appearance of aggregates and multilayers. Progressive increase in the number of early adherent mesenchymal stem cells (MSCs) after 24 h by controlling the areal Col-IV density by LS transfer at 10, 15 and 20 mN m-1 on PET is shown. The LS method offers the possibility to control protein characteristics on biomaterial surfaces such as molecular density and thereby, modulate cell responses.
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Affiliation(s)
- Thanga Bhuvanesh
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, D-14513, Teltow, Germany. Institute of Chemistry, University of Potsdam, D-14476, Potsdam, Germany. Helmholtz Virtual Institute-Multifunctional Biomaterials for Medicine, D-14513, Teltow, Germany
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27
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Nugroho RWN, Harjumäki R, Zhang X, Lou YR, Yliperttula M, Valle-Delgado JJ, Österberg M. Quantifying the interactions between biomimetic biomaterials - collagen I, collagen IV, laminin 521 and cellulose nanofibrils - by colloidal probe microscopy. Colloids Surf B Biointerfaces 2018; 173:571-580. [PMID: 30347384 DOI: 10.1016/j.colsurfb.2018.09.073] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 09/12/2018] [Accepted: 09/28/2018] [Indexed: 12/16/2022]
Abstract
Biomaterials of different nature have been and are widely studied for various biomedical applications. In many cases, biomaterial assemblies are designed to mimic biological systems. Although biomaterials have been thoroughly characterized in many aspects, not much quantitative information on the molecular level interactions between different biomaterials is available. That information is very important, on the one hand, to understand the properties of biological systems and, on the other hand, to develop new composite biomaterials for special applications. This work presents a systematic, quantitative analysis of self- and cross-interactions between films of collagen I (Col I), collagen IV (Col IV), laminin (LN-521), and cellulose nanofibrils (CNF), that is, biomaterials of different nature and structure that either exist in biological systems (e.g., extracellular matrices) or have shown potential for 3D cell culture and tissue engineering. Direct surface forces and adhesion between biomaterials-coated spherical microparticles and flat substrates were measured in phosphate-buffered saline using an atomic force microscope and the colloidal probe technique. Different methods (Langmuir-Schaefer deposition, spin-coating, or adsorption) were applied to completely coat the flat substrates and the spherical microparticles with homogeneous biomaterial films. The adhesion between biomaterials films increased with the time that the films were kept in contact. The strongest adhesion was observed between Col IV films, and between Col IV and LN-521 films after 30 s contact time. In contrast, low adhesion was measured between CNF films, as well as between CNF and LN-521 films. Nevertheless, a good adhesion between CNF and collagen films (especially Col I) was observed. These results increase our understanding of the structure of biological systems and can support the design of new matrices or scaffolds where different biomaterials are combined for diverse biological or medical applications.
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Affiliation(s)
- Robertus Wahyu N Nugroho
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland
| | - Riina Harjumäki
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland; Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Xue Zhang
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland
| | - Yan-Ru Lou
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Marjo Yliperttula
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland; Department of Pharmaceutical and Pharmacological Sciences, University of Padova, I-35131 Padova, Italy
| | - Juan José Valle-Delgado
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland.
| | - Monika Österberg
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland.
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28
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Wang P, Li X, Zhu W, Zhong Z, Moran A, Wang W, Zhang K. 3D bioprinting of hydrogels for retina cell culturing. ACTA ACUST UNITED AC 2018; 11. [PMID: 31903439 DOI: 10.1016/j.bprint.2018.e00029] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Recapitulating native retina environment is crucial in isolation and culturing of retina photoreceptors (PRs). To date, maturation of PRs remains incomprehensible in vitro. Here we present a strategy of integrating the physical and chemical signals through 3D-bioprinting of hyaluronic acid (HA) hydrogels and co-differentiation of retinal progenitor cells (RPCs) into PRs with the support of retinal-pigment epithelium (RPEs). To mimic the native environment during retinal development, we chemically altered the functionalization of HA hydrogels to match the compressive modulus of HA hydrogels with native retina. RPEs were incorporated in the culturing system to support the differentiation due to their regeneration capabilities. We found that HA with a specific functionalization can yield hydrogels with compressive modulus similar to native retina. This hydrogel is also suitable for 3D bioprinting of retina structure. The results from cell study indicated that derivation of PRs from RPCs was improved in the presence of RPEs.
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Affiliation(s)
- Pengrui Wang
- Materials Science and Engineering Program, University of California San Diego, La Jolla, CA 92093, USA
| | - Xin Li
- Shiley Eye Institute and Department of Ophthalmology, University of California San Diego, La Jolla, CA 92093, USA
| | - Wei Zhu
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Zheng Zhong
- Shiley Eye Institute and Department of Ophthalmology, University of California San Diego, La Jolla, CA 92093, USA
| | - Amy Moran
- Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Wenqiu Wang
- Shiley Eye Institute and Department of Ophthalmology, University of California San Diego, La Jolla, CA 92093, USA
| | - Kang Zhang
- Shiley Eye Institute and Department of Ophthalmology, University of California San Diego, La Jolla, CA 92093, USA
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29
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Sorkio A, Koch L, Koivusalo L, Deiwick A, Miettinen S, Chichkov B, Skottman H. Human stem cell based corneal tissue mimicking structures using laser-assisted 3D bioprinting and functional bioinks. Biomaterials 2018; 171:57-71. [PMID: 29684677 DOI: 10.1016/j.biomaterials.2018.04.034] [Citation(s) in RCA: 154] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 04/11/2018] [Accepted: 04/14/2018] [Indexed: 12/11/2022]
Abstract
There is a high demand for developing methods to produce more native-like 3D corneal structures. In the present study, we produced 3D cornea-mimicking tissues using human stem cells and laser-assisted bioprinting (LaBP). Human embryonic stem cell derived limbal epithelial stem cells (hESC-LESC) were used as a cell source for printing epithelium-mimicking structures, whereas human adipose tissue derived stem cells (hASCs) were used for constructing layered stroma-mimicking structures. The development and optimization of functional bioinks was a crucial step towards successful bioprinting of 3D corneal structures. Recombinant human laminin and human sourced collagen I served as the bases for the functional bioinks. We used two previously established LaBP setups based on laser induced forward transfer, with different laser wavelengths and appropriate absorption layers. We bioprinted three types of corneal structures: stratified corneal epithelium using hESC-LESCs, lamellar corneal stroma using alternating acellular layers of bioink and layers with hASCs, and finally structures with both a stromal and epithelial part. The printed constructs were evaluated for their microstructure, cell viability and proliferation, and key protein expression (Ki67, p63α, p40, CK3, CK15, collagen type I, VWF). The 3D printed stromal constructs were also implanted into porcine corneal organ cultures. Both cell types maintained good viability after printing. Laser-printed hESC-LESCs showed epithelial cell morphology, expression of Ki67 proliferation marker and co-expression of corneal progenitor markers p63α and p40. Importantly, the printed hESC-LESCs formed a stratified epithelium with apical expression of CK3 and basal expression of the progenitor markers. The structure of the 3D bioprinted stroma demonstrated that the hASCs had organized horizontally as in the native corneal stroma and showed positive labeling for collagen I. After 7 days in porcine organ cultures, the 3D bioprinted stromal structures attached to the host tissue with signs of hASCs migration from the printed structure. This is the first study to demonstrate the feasibility of 3D LaBP for corneal applications using human stem cells and successful fabrication of layered 3D bioprinted tissues mimicking the structure of the native corneal tissue.
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Affiliation(s)
- Anni Sorkio
- BioMediTech Institute and Faculty of Medicine and Life Sciences, University of Tampere, Arvo Ylpön katu 34, FI-33520 Tampere, Finland; Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany
| | - Lothar Koch
- Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany
| | - Laura Koivusalo
- BioMediTech Institute and Faculty of Medicine and Life Sciences, University of Tampere, Arvo Ylpön katu 34, FI-33520 Tampere, Finland
| | - Andrea Deiwick
- Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany
| | - Susanna Miettinen
- BioMediTech Institute and Faculty of Medicine and Life Sciences, University of Tampere, Arvo Ylpön katu 34, FI-33520 Tampere, Finland; Science Center, Tampere University Hospital, P.O. BOX 2000, FI-33521 Tampere, Finland
| | - Boris Chichkov
- Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany; Institute for Quantum Optics, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany
| | - Heli Skottman
- BioMediTech Institute and Faculty of Medicine and Life Sciences, University of Tampere, Arvo Ylpön katu 34, FI-33520 Tampere, Finland.
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30
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Calejo MT, Ilmarinen T, Skottman H, Kellomäki M. Breath figures in tissue engineering and drug delivery: State-of-the-art and future perspectives. Acta Biomater 2018; 66:44-66. [PMID: 29183847 DOI: 10.1016/j.actbio.2017.11.043] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 11/09/2017] [Accepted: 11/22/2017] [Indexed: 12/11/2022]
Abstract
The breath figure (BF) method is an easy, low-cost method to prepare films with a highly organized honeycomb-like porous surface. The particular surface topography and porous nature of these materials makes them valuable substrates for studying the complex effects of topography on cell fate, and to produce biomimetic materials with high performance in tissue engineering. Numerous researchers over the last two decades have studied the effects of the honeycomb topography on a variety of primary and immortalized cell lines, and drew important conclusions that can be translated to the construction of optimal biomaterials for cell culture. The literature also encouragingly shows the potential of honeycomb films to induce differentiation of stem cells down a specific lineage without the need for biochemical stimuli. Here, we review the main studies where BF honeycomb films are used as substrates for tissue engineering applications. Furthermore, we highlight the numerous advantages of the porous nature of the films, such as the enhanced, spatially controlled adsorption of proteins, the topographical cues influencing cellular behavior, and the enhanced permeability which is essential both in vitro and in vivo. Finally, this review highlights the elegant use of honeycomb films as drug-eluting biomaterials or as reservoirs for distinct drug delivery systems. STATEMENT OF SIGNIFICANCE Combining biocompatible surfaces and 3D nano/microscale topographies, such as pores or grooves, is an effective strategy for manufacturing tissue engineering scaffolds. The breath figure (BF) method is an easy technique to prepare cell culture substrates with an organized, honeycomb-like porous surface. These surface features make these scaffolds valuable for studying how the cells interact with the biomaterials. Their unique surface topography can also resemble the natural environment of the tissues in the human body. For that reason, numerous studies, using different cell types, have shown that honeycomb films can constitute high performance substrates for cell culture. Here, we review those studies, we highlight the advantages of honeycomb films in tissue engineering and we discuss their potential as unique drug-eluting systems.
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Affiliation(s)
- Maria Teresa Calejo
- BioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Tampere University of Technology, Tampere, Finland.
| | - Tanja Ilmarinen
- BioMediTech Institute and Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Heli Skottman
- BioMediTech Institute and Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Minna Kellomäki
- BioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Tampere University of Technology, Tampere, Finland; BioMediTech Institute and Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
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31
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Wang X, Maruotti J, Majumdar S, Roman J, Mao H, Zack DJ, Elisseeff JH. Collagen vitrigels with low‐fibril density enhance human embryonic stem cell‐derived retinal pigment epithelial cell maturation. J Tissue Eng Regen Med 2017; 12:821-829. [DOI: 10.1002/term.2598] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 10/09/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaokun Wang
- Wilmer Eye Institute, School of MedicineJohns Hopkins University Baltimore MD USA
| | - Julien Maruotti
- Wilmer Eye Institute, School of MedicineJohns Hopkins University Baltimore MD USA
- Phenocell SAS Evry France
| | - Shoumyo Majumdar
- Department of Materials Science and EngineeringJohns Hopkins University Baltimore MD USA
| | - Jose Roman
- Department of Biomedical EngineeringJohns Hopkins University Baltimore MD USA
| | - Hai‐Quan Mao
- Wilmer Eye Institute, School of MedicineJohns Hopkins University Baltimore MD USA
- Department of Materials Science and EngineeringJohns Hopkins University Baltimore MD USA
- Department of Biomedical EngineeringJohns Hopkins University Baltimore MD USA
| | - Donald J. Zack
- Wilmer Eye Institute, School of MedicineJohns Hopkins University Baltimore MD USA
| | - Jennifer H. Elisseeff
- Wilmer Eye Institute, School of MedicineJohns Hopkins University Baltimore MD USA
- Department of Materials Science and EngineeringJohns Hopkins University Baltimore MD USA
- Department of Biomedical EngineeringJohns Hopkins University Baltimore MD USA
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32
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Calejo MT, Ilmarinen T, Vuorimaa-Laukkanen E, Talvitie E, Hakola HM, Skottman H, Kellomäki M. Langmuir-Schaefer film deposition onto honeycomb porous films for retinal tissue engineering. Acta Biomater 2017; 54:138-149. [PMID: 28223209 DOI: 10.1016/j.actbio.2017.02.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 01/31/2017] [Accepted: 02/16/2017] [Indexed: 12/15/2022]
Abstract
Age-related macular degeneration (AMD) is the leading cause of vision loss in senior citizens in the developed world. The disease is characterised by the degeneration of a specific cell layer at the back of the eye - the retinal pigment epithelium (RPE), which is essential in retinal function. The most promising therapeutic option to restore the lost vision is considered to be RPE cell transplantation. This work focuses on the development of biodegradable biomaterials with similar properties to the native Bruch's membrane as carriers for RPE cells. In particular, the breath figure (BF) method was used to create semi-permeable microporous films, which were thereafter used as the substrate for the consecutive Langmuir-Schaefer (LS) deposition of highly organised layers of collagen type I and collagen type IV. The newly developed biomaterials were further characterised in terms of surface porosity, roughness, hydrophilicity, collagen distribution, diffusion properties and hydrolytic stability. Human embryonic stem cell-derived RPE cells (hESC-RPE) cultured on the biomaterials showed good adhesion, spreading and morphology, as well as the expression of specific protein markers. Cell function was additionally confirmed by the assessment of the phagocytic capacity of hESC-RPE. Throughout the study, microporous films consistently showed better results as cell culture materials for hESC-RPE than dip-coated controls. This work demonstrates the potential of the BF-LS combined technologies to create biomimetic prosthetic Bruch's membranes for hESC-RPE transplantation. STATEMENT OF SIGNIFICANCE Age-related macular degeneration (AMD) is a leading cause of central blindness in developed countries, associated with the degeneration of the retinal pigment epithelium (RPE), a specific cell layer at the back of the eye. Transplantation of RPE cells derived from stem cells is considered the best option to treat these patients. In this work, we developed a cell carrier for human embryonic stem cell-derived RPE that resembled the upper layers of the membrane that naturally supports the RPE cells in the retina. The new combination of technologies employed in this study resulted in very promising materials as confirmed by our studies on cell proliferation, morphology and function.
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Affiliation(s)
- Maria Teresa Calejo
- Faculty of Biomedical Sciences and Engineering, and BioMediTech Institute, Tampere University of Technology, Tampere, Finland.
| | - Tanja Ilmarinen
- Faculty of Medicine and Life Sciences, and BioMediTech Institute, University of Tampere, Tampere, Finland
| | | | - Elina Talvitie
- Faculty of Biomedical Sciences and Engineering, and BioMediTech Institute, Tampere University of Technology, Tampere, Finland
| | - Hanna M Hakola
- Laboratory of Chemistry and Bioengineering, Tampere University of Technology, Tampere, Finland
| | - Heli Skottman
- Faculty of Medicine and Life Sciences, and BioMediTech Institute, University of Tampere, Tampere, Finland
| | - Minna Kellomäki
- Faculty of Biomedical Sciences and Engineering, and BioMediTech Institute, Tampere University of Technology, Tampere, Finland
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33
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Tian Y, Zonca MR, Imbrogno J, Unser AM, Sfakis L, Temple S, Belfort G, Xie Y. Polarized, Cobblestone, Human Retinal Pigment Epithelial Cell Maturation on a Synthetic PEG Matrix. ACS Biomater Sci Eng 2017; 3:890-902. [PMID: 33429561 DOI: 10.1021/acsbiomaterials.6b00757] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Cell attachment is essential for the growth and polarization of retinal pigment epithelial (RPE) cells. Currently, surface coatings derived from biological proteins are used as the gold standard for cell culture. However, downstream processing and purification of these biological products can be cumbersome and expensive. In this study, we constructed a library of chemically modified nanofibers to mimic the Bruch's membrane of the retinal pigment epithelium. Using atmospheric-pressure plasma-induced graft polymerization with a high-throughput screening platform to modify the nanofibers, we identified three polyethylene glycol (PEG)-grafted nanofiber surfaces (PEG methyl ether methacrylate, n = 4, 8, and 45) from a library of 62 different surfaces as favorable for RPE cell attachment, proliferation, and maturation in vitro with cobblestone morphology. Compared with the biologically derived culture matrices such as vitronectin-based peptide Synthemax, our newly discovered synthetic PEG surfaces exhibit similar growth and polarization of retinal pigment epithelial (RPE) cells. However, they are chemically defined, are easy to synthesize on a large scale, are cost-effective, are stable with long-term storage capability, and provide a more physiologically accurate environment for RPE cell culture. To our knowledge, no one has reported that PEG derivatives directly support attachment and growth of RPE cells with cobblestone morphology. This study offers a unique PEG-modified 3D cell culture system that supports RPE proliferation, differentiation, and maturation with cobblestone morphology, providing a new avenue for RPE cell culture, disease modeling, and cell replacement therapy.
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Affiliation(s)
- Yangzi Tian
- Colleges of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, United States
| | - Michael R Zonca
- Colleges of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, United States
| | - Joseph Imbrogno
- Howard P. Isermann Department of Chemical and Biological Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute (RPI), Troy, New York 12180, United States
| | - Andrea M Unser
- Colleges of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, United States
| | - Lauren Sfakis
- Colleges of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, United States
| | - Sally Temple
- Neural Stem Cell Institute, One Discovery Drive, Rensselaer, New York 12144, United States
| | - Georges Belfort
- Howard P. Isermann Department of Chemical and Biological Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute (RPI), Troy, New York 12180, United States
| | - Yubing Xie
- Colleges of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, United States
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Koivisto JT, Joki T, Parraga JE, Pääkkönen R, Ylä-Outinen L, Salonen L, Jönkkäri I, Peltola M, Ihalainen TO, Narkilahti S, Kellomäki M. Bioamine-crosslinked gellan gum hydrogel for neural tissue engineering. Biomed Mater 2017; 12:025014. [DOI: 10.1088/1748-605x/aa62b0] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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35
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Ao H, Lin C, Nie B, Yang S, Xie Y, Wan Y, Zheng X. The synergistic effect of type I collagen and hyaluronic acid on the biological properties of Col/HA-multilayer-modified titanium coatings: an in vitro and in vivo study. RSC Adv 2017. [DOI: 10.1039/c6ra27364e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The synergistic effect on osseointegration is existed between Type I collagen (ColI) and hyaluronic acid (HA), and the early osseogenetic activity of ColI/HA multilayer modified titanium coatings (TC) is higher than that ColI modified TC and HA modified TC.
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Affiliation(s)
- Haiyong Ao
- School of Materials Science and Engineering
- East China Jiaotong University
- Nanchang
- China 330013
- Key Laboratory of Inorganic Coating Materials
| | - Chucheng Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai
- China 200050
| | - Binen Nie
- Shanghai Key Laboratory of Orthopedic Implants
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai
- China 200011
| | - Shengbing Yang
- Shanghai Key Laboratory of Orthopedic Implants
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai
- China 200011
| | - Youtao Xie
- Key Laboratory of Inorganic Coating Materials
- Shanghai Institute of Ceramics
- Chinese Academy of Science
- Shanghai
- China 200050
| | - Yizao Wan
- School of Materials Science and Engineering
- East China Jiaotong University
- Nanchang
- China 330013
| | - Xuebin Zheng
- Key Laboratory of Inorganic Coating Materials
- Shanghai Institute of Ceramics
- Chinese Academy of Science
- Shanghai
- China 200050
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36
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Feng J, Zhang D, Zhu M, Gao C. Poly(l-lactide) melt spun fiber-aligned scaffolds coated with collagen or chitosan for guiding the directional migration of osteoblasts in vitro. J Mater Chem B 2017; 5:5176-5188. [DOI: 10.1039/c7tb00601b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PLLA melt spun fiber-aligned scaffolds coated with collagen or chitosan enhance the viability, spreading, alignment and mobility of osteoblasts.
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Affiliation(s)
- Jianyong Feng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Deteng Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Meifang Zhu
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
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37
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Hotaling NA, Khristov V, Wan Q, Sharma R, Jha BS, Lotfi M, Maminishkis A, Simon CG, Bharti K. Nanofiber Scaffold-Based Tissue-Engineered Retinal Pigment Epithelium to Treat Degenerative Eye Diseases. J Ocul Pharmacol Ther 2016; 32:272-85. [PMID: 27110730 PMCID: PMC4904235 DOI: 10.1089/jop.2015.0157] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 03/24/2016] [Indexed: 12/16/2022] Open
Abstract
Clinical-grade manufacturing of a functional retinal pigment epithelium (RPE) monolayer requires reproducing, as closely as possible, the natural environment in which RPE grows. In vitro, this can be achieved by a tissue engineering approach, in which the RPE is grown on a nanofibrous biological or synthetic scaffold. Recent research has shown that nanofiber scaffolds perform better for cell growth and transplantability compared with their membrane counterparts and that the success of the scaffold in promoting cell growth/function is not heavily material dependent. With these strides, the field has advanced enough to begin to consider implementation of one, or a combination, of the tissue engineering strategies discussed herein. In this study, we review the current state of tissue engineering research for in vitro culture of RPE/scaffolds and the parameters for optimal scaffold design that have been uncovered during this research. Next, we discuss production methods and manufacturers that are capable of producing the nanofiber scaffolds in such a way that would be biologically, regulatory, clinically, and commercially viable. Then, a discussion of how the scaffolds could be characterized, both morphologically and mechanically, to develop a testing process that is viable for regulatory screening is performed. Finally, an example of a tissue-engineered RPE/scaffold construct is given to provide the reader a framework for understanding how these pieces could fit together to develop a tissue-engineered RPE/scaffold construct that could pass regulatory scrutiny and can be commercially successful.
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Affiliation(s)
- Nathan A. Hotaling
- Biosystems and Biomaterials Division, National Institute of Standards and Technology, Gaithersburg, Maryland
- Unit on Ocular and Stem Cell Translational Research, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Vladimir Khristov
- Section of Epithelial and Retinal Physiology and Disease, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Qin Wan
- Section of Epithelial and Retinal Physiology and Disease, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Ruchi Sharma
- Unit on Ocular and Stem Cell Translational Research, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Balendu Shekhar Jha
- Unit on Ocular and Stem Cell Translational Research, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Mostafa Lotfi
- Section of Epithelial and Retinal Physiology and Disease, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Arvydas Maminishkis
- Section of Epithelial and Retinal Physiology and Disease, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Carl G. Simon
- Biosystems and Biomaterials Division, National Institute of Standards and Technology, Gaithersburg, Maryland
| | - Kapil Bharti
- Unit on Ocular and Stem Cell Translational Research, National Eye Institute, National Institutes of Health, Bethesda, Maryland
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Calejo MT, Ilmarinen T, Jongprasitkul H, Skottman H, Kellomäki M. Honeycomb porous films as permeable scaffold materials for human embryonic stem cell-derived retinal pigment epithelium. J Biomed Mater Res A 2016; 104:1646-56. [PMID: 26914698 DOI: 10.1002/jbm.a.35690] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 01/29/2016] [Accepted: 02/16/2016] [Indexed: 01/29/2023]
Abstract
Age-related macular degeneration (AMD) is a leading cause of blindness in developed countries, characterised by the degeneration of the retinal pigment epithelium (RPE), a pigmented cell monolayer that closely interacts with the photoreceptors. RPE transplantation is thus considered a very promising therapeutic option to treat this disease. In this work, porous honeycomb-like films are for the first time investigated as scaffold materials for human embryonic stem cell-derived retinal pigment epithelium (hESC-RPE). By changing the conditions during film preparation, it was possible to produce films with homogeneous pore distribution and adequate pore size (∼3-5 µm), that is large enough to ensure high permeability but small enough to enable cell adherence and spreading. A brief dip-coating procedure with collagen type IV enabled the homogeneous adsorption of the protein to the walls and bottom of pores, increasing the hydrophilicity of the surface. hESC-RPE adhered and proliferated on all the collagen-coated materials, regardless of small differences in pore size. The differentiation of hESC-RPE was confirmed by the detection of specific RPE protein markers. These results suggest that the porous honeycomb films can be promising candidates for hESC-RPE tissue engineering, importantly enabling the free flow of ions and molecules across the material. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 1646-1656, 2016.
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Affiliation(s)
- Maria Teresa Calejo
- BioMediTech, Department of Electronics and Communications Engineering, Tampere University of Technology, Tampere, Finland
| | | | - Hatai Jongprasitkul
- BioMediTech, Department of Electronics and Communications Engineering, Tampere University of Technology, Tampere, Finland
| | - Heli Skottman
- BioMediTech, University of Tampere, Tampere, Finland
| | - Minna Kellomäki
- BioMediTech, Department of Electronics and Communications Engineering, Tampere University of Technology, Tampere, Finland
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Kök FN. Bionanotechnology: Lessons from Nature for Better Material Properties. LOW-DIMENSIONAL AND NANOSTRUCTURED MATERIALS AND DEVICES 2016. [DOI: 10.1007/978-3-319-25340-4_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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41
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Ilmarinen T, Hiidenmaa H, Kööbi P, Nymark S, Sorkio A, Wang JH, Stanzel BV, Thieltges F, Alajuuma P, Oksala O, Kataja M, Uusitalo H, Skottman H. Ultrathin Polyimide Membrane as Cell Carrier for Subretinal Transplantation of Human Embryonic Stem Cell Derived Retinal Pigment Epithelium. PLoS One 2015; 10:e0143669. [PMID: 26606532 PMCID: PMC4659637 DOI: 10.1371/journal.pone.0143669] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 11/06/2015] [Indexed: 12/11/2022] Open
Abstract
In this study, we investigated the suitability of ultrathin and porous polyimide (PI) membrane as a carrier for subretinal transplantation of human embryonic stem cell (hESC) -derived retinal pigment epithelial (RPE) cells in rabbits. The in vivo effects of hESC-RPE cells were analyzed by subretinal suspension injection into Royal College of Surgeons (RCS) rats. Rat eyes were analyzed with electroretinography (ERG) and histology. After analyzing the surface and permeability properties of PI, subretinal PI membrane transplantations with and without hESC-RPE were performed in rabbits. The rabbits were followed for three months and eyes analyzed with fundus photography, ERG, optical coherence tomography (OCT), and histology. Animals were immunosuppressed with cyclosporine the entire follow-up time. In dystrophic RCS rats, ERG and outer nuclear layer (ONL) thickness showed some rescue after hESC-RPE injection. Cells positive for human antigen were found in clusters under the retina 41 days post-injection but not anymore after 105 days. In rabbits, OCT showed good placement of the PI. However, there was loss of pigmentation on the hESC-RPE-PI over time. In the eyes with PI alone, no obvious signs of inflammation or retinal atrophy were observed. In the presence of hESC-RPE, mononuclear cell infiltration and retinal atrophy were observed around the membranes. The porous ultrathin PI membrane was well-tolerated in the subretinal space and is a promising scaffold for RPE transplantation. However, the rejection of the transplanted cells seems to be a major problem and the given immunosuppression was insufficient for reduction of xenograft induced inflammation.
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Affiliation(s)
- Tanja Ilmarinen
- BioMediTech, University of Tampere, Tampere, Finland
- * E-mail:
| | | | - Peeter Kööbi
- Department of Ophthalmology, SILK, University of Tampere and Tays Eye Center, Tampere, Finland
| | - Soile Nymark
- Department of Electronics and Communications Engineering and BioMediTech, Tampere University of Technology, Tampere, Finland
| | - Anni Sorkio
- BioMediTech, University of Tampere, Tampere, Finland
| | - Jing-Huan Wang
- Department of Ophthalmology, SILK, University of Tampere and Tays Eye Center, Tampere, Finland
| | | | | | | | | | | | - Hannu Uusitalo
- Department of Ophthalmology, SILK, University of Tampere and Tays Eye Center, Tampere, Finland
| | - Heli Skottman
- BioMediTech, University of Tampere, Tampere, Finland
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42
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Delplace V, Payne S, Shoichet M. Delivery strategies for treatment of age-related ocular diseases: From a biological understanding to biomaterial solutions. J Control Release 2015; 219:652-668. [PMID: 26435454 DOI: 10.1016/j.jconrel.2015.09.065] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 09/28/2015] [Accepted: 09/29/2015] [Indexed: 12/24/2022]
Abstract
Age-related ocular diseases, such as age-related macular degeneration (AMD), diabetic retinopathy, and glaucoma, result in life-long functional deficits and enormous global health care costs. As the worldwide population ages, vision loss has become a major concern for both economic and human health reasons. Due to recent research into biomaterials and nanotechnology major advances have been gained in the field of ocular delivery. This review provides a summary and discussion of the most recent strategies employed for the delivery of both drugs and cells to the eye to treat a variety of age-related diseases. It emphasizes the current challenges and limitations to ocular delivery and how the use of innovative materials can overcome these issues and ultimately provide treatment for age-related degeneration and regeneration of lost tissues. This review also provides critical considerations and an outlook for future studies in the field of ophthalmic delivery.
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Affiliation(s)
- Vianney Delplace
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada; Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, ON M5S 3G9, Canada
| | - Samantha Payne
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada; Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, ON M5S 3G9, Canada
| | - Molly Shoichet
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada; Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, ON M5S 3G9, Canada.
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Higuchi A, Ling QD, Kumar SS, Chang Y, Alarfaj AA, Munusamy MA, Murugan K, Hsu ST, Umezawa A. Physical cues of cell culture materials lead the direction of differentiation lineages of pluripotent stem cells. J Mater Chem B 2015; 3:8032-8058. [DOI: 10.1039/c5tb01276g] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Differentiation methods of hPSCs into specific cell lineages. Differentiation of hPSCsviaEB formation (types AB, A–D) or without EB formation (types E–H).
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Affiliation(s)
- Akon Higuchi
- Department of Chemical and Materials Engineering, National Central University
- Taoyuan 32001
- Taiwan
- National Research Institute for Child Health and Development
- Center for Regenerative Medicine
| | - Qing-Dong Ling
- Cathay Medical Research Institute
- Cathay General Hospital
- Taipei
- Taiwan
- Graduate Institute of Systems Biology and Bioinformatics
| | - S. Suresh Kumar
- Department of Medical Microbiology and Parasitology
- Universiti Putra Malaysia
- Selangor
- Malaysia
| | - Yung Chang
- Department of Chemical Engineering
- R&D Center for Membrane Technology
- Chung Yuan Christian University
- Taoyuan
- Taiwan
| | - Abdullah A. Alarfaj
- Department of Botany and Microbiology
- College of Science
- King Saud University
- Riyadh
- Saudi Arabia
| | - Murugan A. Munusamy
- Department of Botany and Microbiology
- College of Science
- King Saud University
- Riyadh
- Saudi Arabia
| | - Kadarkarai Murugan
- Division of Entomology
- Department of Zoology
- School of Life Sciences
- Bharathiar University
- Coimbatore 641046
| | - Shih-Tien Hsu
- Department of Internal Medicine
- Taiwan Landseed Hospital
- Taoyuan
- Taiwan
| | - Akihiro Umezawa
- National Research Institute for Child Health and Development
- Center for Regenerative Medicine
- Tokyo 157-8535
- Japan
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