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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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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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Lee DH, Lee JH, Pyun YC, Shin ME, Shin EY, Been S, Song JE, Migliaresi C, Motta A, Khang G. Impact of Agarose Hydrogels as Cell Vehicles for Neo Retinal Pigment Epithelium Formation: In Vitro Study. Macromol Res 2022. [DOI: 10.1007/s13233-022-0091-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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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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5
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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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Soroushzadeh S, Karamali F, Masaeli E, Atefi A, Nasr Esfahani MH. Scaffold free retinal pigment epithelium sheet engineering using modified alginate-RGD hydrogel. J Biosci Bioeng 2022; 133:579-586. [PMID: 35339352 DOI: 10.1016/j.jbiosc.2022.02.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 01/30/2022] [Accepted: 02/02/2022] [Indexed: 11/16/2022]
Abstract
Tissue-specific extracellular matrix (ECM) plays a critical role in cell survival and homeostasis, which are particularly essential for directing differentiation of different complex tissues such as retina. However, ECM maintenance should be considered to design an effective therapeutic strategy for retina regeneration. To achieve this, cell sheet engineering has emerged as a growing approach to closely reconstruct basal membrane of cells through a scaffold-free manner. Several irreversible sight-threatening diseases are characterized by the dysfunction and lose of retinal pigment epithelium (RPE), leading to vision loss and eventually total blindness in patients. According to impressive developments in achievement of RPE from human embryonic stem cells (hESCs), we obtained RPE cells without any extrinsic factors in a co-culture system, and cultured them on a temporary alginate hydrogel substrate. Subsequently, Arg-Gly-Asp (RGD) peptide was superficially immobilized on the upper layer of hydrogel to improve cell attachment before harvesting sheet layer. RPE cell sheet layer was released by treating pre-seeded hydrogels with sodium citrate as a calcium chelating agent and characterized in both in vitro and in vivo models. RPE sheets formed tight junction and expressed high levels of retina structural markers such as ZO-1, Bestrophin and Collagen type IV. One week after in vivo transplantation of RPE sheet, cells survived in the subretinal space, indicating that our harvesting method is non-invasive. To sum up, we introduced a unique scaffold-free method for RPE cell sheet engineering, which can find potential use for future therapeutic purposes.
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Affiliation(s)
- Sareh Soroushzadeh
- ACECR Institute of Higher Education (Isfahan Branch), P.O. Box: 84175443, Iran; Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, P.O. Box 8159358686, Iran
| | - Fereshteh Karamali
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, P.O. Box 8159358686, Iran
| | - Elahe Masaeli
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, P.O. Box 8159358686, Iran
| | - Atefeh Atefi
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, P.O. Box 8159358686, Iran
| | - Mohammad Hossein Nasr Esfahani
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, P.O. Box 8159358686, Iran.
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Liu Z, Nan H, Jiang Y, Xu T, Gong X, Hu C. Programmable Electrodeposition of Janus Alginate/Poly-L-Lysine/Alginate (APA) Microcapsules for High-Resolution Cell Patterning and Compartmentalization. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2106363. [PMID: 34921585 DOI: 10.1002/smll.202106363] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/21/2021] [Indexed: 06/14/2023]
Abstract
Encapsulation of live cells in protective, semipermeable microcapsules is one of the kernel techniques for in vitro tissue regeneration, cell therapies, and pharmaceutical screening. Advanced fabrication techniques for cell encapsulation have been developed to meet different requirements. Existing cell encapsulation techniques place substantial constraints on the spatial patterning of live cells as well as on the compartmentalization of heterotypic cells. Alginate-Poly-L-lysine-alginate (APA) microcapsules that use sodium alginate as the polyanion and poly-L-lysine (PLL) as the polycation have been extensively employed for cell microencapsulation due to their excellent biocompatibility and biodegradability. This study proposes a novel method for developing programmable Janus APA microcapsules with variable shapes and sizes by using electrodeposition. By the versatile design of the microelectrode device, sequential electrodeposition is triggered to electro-address the cells at specific locations immobilized within a Janus APA microcapsule. The osteogenesis is evaluated by resembling cell compartmentalized and vascularized osteoblast-laden constructs. This technique allows precise spatial patterning of heterotypic cells inside the APA microcapsule, enabling the observation of cellular growth, interactions, and differentiation in a well-controlled chemical and mechanical microenvironment.
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Affiliation(s)
- Zeyang Liu
- Shenzhen Key Laboratory of Biomimetic Robotics and Intelligent Systems, Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
- Stem Cell Therapy and Regenerative Medicine Lab, Tsinghua-Berkeley Shenzhen Institute (TBSI), No.1001 Xueyuan Avenue, Nanshan District, Shenzhen, 518000, China
| | - Haochen Nan
- Shenzhen Key Laboratory of Biomimetic Robotics and Intelligent Systems, Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yike Jiang
- Stem Cell Therapy and Regenerative Medicine Lab, Tsinghua-Berkeley Shenzhen Institute (TBSI), No.1001 Xueyuan Avenue, Nanshan District, Shenzhen, 518000, China
| | - Tao Xu
- Stem Cell Therapy and Regenerative Medicine Lab, Tsinghua-Berkeley Shenzhen Institute (TBSI), No.1001 Xueyuan Avenue, Nanshan District, Shenzhen, 518000, China
| | - Xiaohua Gong
- School of Optometry and Vision Science Program, University of California Berkeley, 380 Minor Ln, Berkeley, San Francisco, CA, 94720, USA
| | - Chengzhi Hu
- Shenzhen Key Laboratory of Biomimetic Robotics and Intelligent Systems, Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
- Guangdong Provincial Key Laboratory of Human-Augmentation and Rehabilitation Robotics in Universities, Southern University of Science and Technology, Shenzhen, 518055, China
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Rohiwal SS, Ellederová Z, Ardan T, Klima J. Advancement in Nanostructure-Based Tissue-Engineered Biomaterials for Retinal Degenerative Diseases. Biomedicines 2021; 9:biomedicines9081005. [PMID: 34440209 PMCID: PMC8393745 DOI: 10.3390/biomedicines9081005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/07/2021] [Accepted: 08/10/2021] [Indexed: 12/20/2022] Open
Abstract
The review intends to overview a wide range of nanostructured natural, synthetic and biological membrane implants for tissue engineering to help in retinal degenerative diseases. Herein, we discuss the transplantation strategies and the new development of material in combination with cells such as induced pluripotent stem cells (iPSC), mature retinal cells, adult stem cells, retinal progenitors, fetal retinal cells, or retinal pigment epithelial (RPE) sheets, etc. to be delivered into the subretinal space. Retinitis pigmentosa and age-related macular degeneration (AMD) are the most common retinal diseases resulting in vision impairment or blindness by permanent loss in photoreceptor cells. Currently, there are no therapies that can repair permanent vision loss, and the available treatments can only delay the advancement of retinal degeneration. The delivery of cell-based nanostructure scaffolds has been presented to enrich cell survival and direct cell differentiation in a range of retinal degenerative models. In this review, we sum up the research findings on different types of nanostructure scaffolds/substrate or material-based implants, with or without cells, used to deliver into the subretinal space for retinal diseases. Though, clinical and pre-clinical trials are still needed for these transplants to be used as a clinical treatment method for retinal degeneration.
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9
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The Evolution of Fabrication Methods in Human Retina Regeneration. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11094102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Optic nerve and retinal diseases such as age-related macular degeneration and inherited retinal dystrophies (IRDs) often cause permanent sight loss. Currently, a limited number of retinal diseases can be treated. Hence, new strategies are needed. Regenerative medicine and especially tissue engineering have recently emerged as promising alternatives to repair retinal degeneration and recover vision. Here, we provide an overview of retinal anatomy and diseases and a comprehensive review of retinal regeneration approaches. In the first part of the review, we present scaffold-free approaches such as gene therapy and cell sheet technology while in the second part, we focus on fabrication techniques to produce a retinal scaffold with a particular emphasis on recent trends and advances in fabrication techniques. To this end, the use of electrospinning, 3D bioprinting and lithography in retinal regeneration was explored.
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Nair DSR, Seiler MJ, Patel KH, Thomas V, Camarillo JCM, Humayun MS, Thomas BB. Tissue Engineering Strategies for Retina Regeneration. APPLIED SCIENCES-BASEL 2021; 11. [PMID: 35251703 PMCID: PMC8896578 DOI: 10.3390/app11052154] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The retina is a complex and fragile photosensitive part of the central nervous system which is prone to degenerative diseases leading to permanent vision loss. No proven treatment strategies exist to treat or reverse the degenerative conditions. Recent investigations demonstrate that cell transplantation therapies to replace the dysfunctional retinal pigment epithelial (RPE) cells and or the degenerating photoreceptors (PRs) are viable options to restore vision. Pluripotent stem cells, retinal progenitor cells, and somatic stem cells are the main cell sources used for cell transplantation therapies. The success of retinal transplantation based on cell suspension injection is hindered by limited cell survival and lack of cellular integration. Recent advances in material science helped to develop strategies to grow cells as intact monolayers or as sheets on biomaterial scaffolds for transplantation into the eyes. Such implants are found to be more promising than the bolus injection approach. Tissue engineering techniques are specifically designed to construct biodegradable or non-degradable polymer scaffolds to grow cells as a monolayer and construct implantable grafts. The engineered cell construct along with the extracellular matrix formed, can hold the cells in place to enable easy survival, better integration, and improved visual function. This article reviews the advances in the use of scaffolds for transplantation studies in animal models and their application in current clinical trials.
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Affiliation(s)
- Deepthi S. Rajendran Nair
- Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Magdalene J. Seiler
- Departments of Physical Medicine & Rehabilitation, Ophthalmology, Anatomy & Neurobiology, Sue and Bill Gross Stem Cell Research Centre, University of California, Irvine, CA 92697-1705, USA
| | - Kahini H. Patel
- Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Vinoy Thomas
- Department of Physics, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Juan Carlos Martinez Camarillo
- Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- USC Ginsburg Institute for Biomedical Therapeutics, University of Southern California, Los Angeles, CA 90033, USA
| | - Mark S. Humayun
- Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- USC Ginsburg Institute for Biomedical Therapeutics, University of Southern California, Los Angeles, CA 90033, USA
| | - Biju B. Thomas
- Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- USC Ginsburg Institute for Biomedical Therapeutics, University of Southern California, Los Angeles, CA 90033, USA
- Correspondence:
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Belgio B, Boschetti F, Mantero S. Towards an In Vitro Retinal Model to Study and Develop New Therapies for Age-Related Macular Degeneration. Bioengineering (Basel) 2021; 8:bioengineering8020018. [PMID: 33499168 PMCID: PMC7911334 DOI: 10.3390/bioengineering8020018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/09/2021] [Accepted: 01/20/2021] [Indexed: 12/20/2022] Open
Abstract
Age-related macular degeneration (AMD) is the leading cause of vision loss in the elderly worldwide. So far, the etiology and the progression of AMD are not well known. Animal models have been developed to study the mechanisms involved in AMD; however, according to the "Three Rs" principle, alternative methods have been investigated. Here we present a strategy to develop a "Three Rs" compliant retinal three-dimensional (3D) in vitro model, including a Bruch's membrane model and retina pigment epithelium (RPE) layer. First, tensile testing was performed on porcine retina to set a reference for the in vitro model. The results of tensile testing showed a short linear region followed by a plastic region with peaks. Then, Bruch's membrane (BrM) was fabricated via electrospinning by using Bombyx mori silk fibroin (BMSF) and polycaprolactone (PCL). The BrM properties and ARPE-19 cell responses to BrM substrates were investigated. The BrM model displayed a thickness of 44 µm, with a high porosity and an average fiber diameter of 1217 ± 101 nm. ARPE-19 cells adhered and spread on the BMSF/PCL electrospun membranes. In conclusion, we are developing a novel 3D in vitro retinal model towards the replacement of animal models in AMD studies.
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Bagewadi S, Parameswaran S, Krishnakumar S, Sethuraman S, Subramanian A. Tissue engineering approaches towards the regeneration of biomimetic scaffolds for age-related macular degeneration. J Mater Chem B 2021; 9:5935-5953. [PMID: 34254105 DOI: 10.1039/d1tb00976a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Age-related macular degeneration (AMD) is the third major cause of blindness in people aged above 60 years. It causes dysfunction of the retinal pigment epithelium (RPE) and leads to an irreversible loss of central vision. The present clinical treatment options are more palliative in controlling the progression of the disease and do not functionally restore the degenerated RPE monolayer and photoreceptors. Currently, the clinical transplantation of RPE cells has shown poor engraftment potential due to the absence of an intact Bruch's membrane in AMD patients, thereby the vision is unable to be restored completely. Although tissue engineering strategies target the development of Bruch's membrane-mimetic substrates, the challenge still lies in the development of an ultrathin, biologically and mechanically equivalent membrane to restore visual acuity. Further, existing limitations such as cellular aggregation, surgical complications including retinal tissue damage, tissue rejection, disease transmission, inferior mechanical strength, and the loss of vision over time demand the search for an ideal strategy to restore the functional RPE. Hence, this review aims to provide insights into various approaches, from conventional cell therapy to 3D bioprinting, and their unmet challenges in treating AMD by outlining the pathophysiology of AMD and the host tissue response with respect to injury, treatment and preclinical animal models.
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Affiliation(s)
- Shambhavi Bagewadi
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
| | - Sowmya Parameswaran
- Radheshyam Kanoi Stem Cell Laboratory, Kamalnayan Bajaj Institute for Research in Vision and Ophthalmology Vision Research Foundation, Chennai, India
| | - Subramanian Krishnakumar
- Radheshyam Kanoi Stem Cell Laboratory, Kamalnayan Bajaj Institute for Research in Vision and Ophthalmology Vision Research Foundation, Chennai, India
| | - Swaminathan Sethuraman
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
| | - Anuradha Subramanian
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
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13
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Jemni-Damer N, Guedan-Duran A, Fuentes-Andion M, Serrano-Bengoechea N, Alfageme-Lopez N, Armada-Maresca F, Guinea GV, Perez-Rigueiro J, Rojo F, Gonzalez-Nieto D, Kaplan DL, Panetsos F. Biotechnology and Biomaterial-Based Therapeutic Strategies for Age-Related Macular Degeneration. Part II: Cell and Tissue Engineering Therapies. Front Bioeng Biotechnol 2020; 8:588014. [PMID: 33363125 PMCID: PMC7758210 DOI: 10.3389/fbioe.2020.588014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 11/19/2020] [Indexed: 12/12/2022] Open
Abstract
Age-related Macular Degeneration (AMD) is an up-to-date untreatable chronic neurodegenerative eye disease of multifactorial origin, and the main causes of blindness in over 65 y.o. people. It is characterized by a slow progression and the presence of a multitude of factors, highlighting those related to diet, genetic heritage and environmental conditions, present throughout each of the stages of the illness. Current therapeutic approaches, mainly consisting on intraocular drug delivery, are only used for symptoms relief and/or to decelerate the progression of the disease. Furthermore, they are overly simplistic and ignore the complexity of the disease and the enormous differences in the symptomatology between patients. Due to the wide impact of the AMD and the up-to-date absence of clinical solutions, Due to the wide impact of the AMD and the up-to-date absence of clinical solutions, different treatment options have to be considered. Cell therapy is a very promising alternative to drug-based approaches for AMD treatment. Cells delivered to the affected tissue as a suspension have shown poor retention and low survival rate. A solution to these inconveniences has been the encapsulation of these cells on biomaterials, which contrive to their protection, gives them support, and favor their retention of the desired area. We offer a two-papers critical review of the available and under development AMD therapeutic approaches, from a biomaterials and biotechnological point of view. We highlight benefits and limitations and we forecast forthcoming alternatives based on novel biomaterials and biotechnology methods. In this second part we review the preclinical and clinical cell-replacement approaches aiming at the development of efficient AMD-therapies, the employed cell types, as well as the cell-encapsulation and cell-implant systems. We discuss their advantages and disadvantages and how they could improve the survival and integration of the implanted cells.
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Affiliation(s)
- Nahla Jemni-Damer
- Neuro-computing and Neuro-robotics Research Group, Complutense University of Madrid, Madrid, Spain
- Innovation Group, Institute for Health Research San Carlos Clinical Hospital, Madrid, Spain
| | - Atocha Guedan-Duran
- Neuro-computing and Neuro-robotics Research Group, Complutense University of Madrid, Madrid, Spain
- Innovation Group, Institute for Health Research San Carlos Clinical Hospital, Madrid, Spain
- Department of Biomedical Engineering, Tufts University, Medford, MA, United States
| | - María Fuentes-Andion
- Neuro-computing and Neuro-robotics Research Group, Complutense University of Madrid, Madrid, Spain
- Innovation Group, Institute for Health Research San Carlos Clinical Hospital, Madrid, Spain
| | - Nora Serrano-Bengoechea
- Neuro-computing and Neuro-robotics Research Group, Complutense University of Madrid, Madrid, Spain
- Innovation Group, Institute for Health Research San Carlos Clinical Hospital, Madrid, Spain
- Silk Biomed SL, Madrid, Spain
| | - Nuria Alfageme-Lopez
- Neuro-computing and Neuro-robotics Research Group, Complutense University of Madrid, Madrid, Spain
- Innovation Group, Institute for Health Research San Carlos Clinical Hospital, Madrid, Spain
- Silk Biomed SL, Madrid, Spain
| | | | - Gustavo V. Guinea
- Silk Biomed SL, Madrid, Spain
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcon, Spain
- Department of Material Science, Civil Engineering Superior School, Universidad Politécnica de Madrid, Madrid, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine, Madrid, Spain
| | - José Perez-Rigueiro
- Silk Biomed SL, Madrid, Spain
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcon, Spain
- Department of Material Science, Civil Engineering Superior School, Universidad Politécnica de Madrid, Madrid, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine, Madrid, Spain
| | - Francisco Rojo
- Silk Biomed SL, Madrid, Spain
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcon, Spain
- Department of Material Science, Civil Engineering Superior School, Universidad Politécnica de Madrid, Madrid, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine, Madrid, Spain
| | - Daniel Gonzalez-Nieto
- Silk Biomed SL, Madrid, Spain
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcon, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine, Madrid, Spain
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA, United States
| | - Fivos Panetsos
- Neuro-computing and Neuro-robotics Research Group, Complutense University of Madrid, Madrid, Spain
- Innovation Group, Institute for Health Research San Carlos Clinical Hospital, Madrid, Spain
- Silk Biomed SL, Madrid, Spain
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14
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Jemni-Damer N, Guedan-Duran A, Cichy J, Lozano-Picazo P, Gonzalez-Nieto D, Perez-Rigueiro J, Rojo F, V Guinea G, Virtuoso A, Cirillo G, Papa M, Armada-Maresca F, Largo-Aramburu C, Aznar-Cervantes SD, Cenis JL, Panetsos F. First steps for the development of silk fibroin-based 3D biohybrid retina for age-related macular degeneration (AMD). J Neural Eng 2020; 17:055003. [PMID: 32947273 DOI: 10.1088/1741-2552/abb9c0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Age-related macular degeneration is an incurable chronic neurodegenerative disease, causing progressive loss of the central vision and even blindness. Up-to-date therapeutic approaches can only slow down he progression of the disease. OBJECTIVE Feasibility study for a multilayered, silk fibroin-based, 3D biohybrid retina. APPROACH Fabrication of silk fibroin-based biofilms; culture of different types of cells: retinal pigment epithelium, retinal neurons, Müller and mesenchymal stem cells ; creation of a layered structure glued with silk fibroin hydrogel. MAIN RESULTS In vitro evidence for the feasibility of layered 3D biohybrid retinas; primary culture neurons grow and develop neurites on silk fibroin biofilms, either alone or in presence of other cells cultivated on the same biomaterial; cell organization and cellular phenotypes are maintained in vitro for the seven days of the experiment. SIGNIFICANCE 3D biohybrid retina can be built using silk silkworm fibroin films and hydrogels to be used in cell replacement therapy for AMD and similar retinal neurodegenerative diseases.
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Affiliation(s)
- Nahla Jemni-Damer
- Neuro-computing & Neuro-robotics Research Group, Complutense University of Madrid, Spain. Innovation Research Group, Institute for Health Research San Carlos Clinical Hospital (IdISSC), Madrid, Spain. These authors equally contributed to this article
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15
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Ying B, Park S, Chen L, Dong X, Young EWK, Liu X. NanoPADs and nanoFACEs: an optically transparent nanopaper-based device for biomedical applications. LAB ON A CHIP 2020; 20:3322-3333. [PMID: 32766659 DOI: 10.1039/d0lc00226g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Paper has been a popular material of choice for biomedical applications including for bioanalysis and cell biology studies. Regular cellulose paper-based devices, however, have several key limitations including slow fluid flow; large sample retention in the paper matrix for microfluidic paper-based analytical device (μPAD) application; serious solvent evaporation issues, and contamination and poor control of experimental conditions for cell culture. Here, we describe the development of two novel platforms, nanopaper-based analytical devices (nanoPADs) and nanofibrillated adherent cell-culture platforms (nanoFACEs), that use nanofibrillated cellulose (NFC) paper, simply called nanopaper, as the substrate material to create transparent, pump-free and hollow-channel paper-based microfluidic devices. Due to the natural hydrophilicity and nanoscale pore size of nanopaper, the hollow-channel microfluidic devices can realize a totally pump-free flow without any complicated surface chemical functionalization on the nanopaper. Experimental results showed that within a certain range, larger hollow channel size leads to faster pump-free flows. Different from previous designs of paper-based hollow-channel microfluidic devices, the high transparency of the nanopaper substrate enabled the integration of various optical sensing and imaging technologies together with the nanoPADs and nanoFACEs. As proof-of-concept demonstrations, we demonstrated the use of nanoPADs for colorimetric sensing of glucose and surface-enhanced Raman spectroscopy (SERS)-based detection of environmental pollutants and applied the nanoFACEs to the culture of human umbilical vein endothelial cells (HUVECs). These demonstrations show the great promise of nanoPADs and nanoFACEs for biomedical applications such as chemical/bioanalysis and cell biology studies.
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Affiliation(s)
- Binbin Ying
- Department of Mechanical & Industrial Engineering, University of Toronto, 5 King's College Road Toronto, ON M5S 3G8, Canada.
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16
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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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17
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Oliveira AV, Sarmento B. Establishment of a multilayered 3D cellular model of the retinal-blood barrier. Int J Pharm 2019; 572:118811. [PMID: 31678524 DOI: 10.1016/j.ijpharm.2019.118811] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/13/2019] [Accepted: 10/16/2019] [Indexed: 11/19/2022]
Abstract
Retinal disorders are leading causes of blindness. Still, treatment strategies are limited and the challenging anatomical barriers of the eye limit the evaluation and development of new therapeutics. Among these layers of barriers is the blood-retinal barrier, which separates the retina from the choroid by the Bruch's membrane. This work aimed to establish a 3D cellular model that recapitulates barrier properties of the BRB and diffusion through the vitreous, the main barriers encountered upon intravitreal injection. Several parameters were evaluated namely co-culture time of ARPE-19 and HUVECs and different biomaterial compositions of hydrogels to better mimic the human vitreous. The developed vitreous mimic has viscoelastic properties similar to human vitreous. Co-culture of human retinal and endothelial cells showed increased transepithelial resistance with longer co-culture times concomitant with reduced permeability to FITC-dextran 40 kDa. The proposed models lay the foundation of a platform for faster assessment of a large number of samples and without the use of animals.
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Affiliation(s)
- Ana V Oliveira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
| | - Bruno Sarmento
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal; CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde & Instituto Universitário de Ciências da Saúde, Rua Central de Gandra 1317, 4585-116 Gandra, Portugal.
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18
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Tavakoli Z, Yazdian F, Tabandeh F, Sheikhpour M. Regenerative medicine as a novel strategy for AMD treatment: a review. Biomed Phys Eng Express 2019; 6:012001. [PMID: 33438587 DOI: 10.1088/2057-1976/ab269a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Age-related macular degeneration (AMD) is known as a major cause of irreversible blindness in elderly adults. The segment of the retina responsible for central vision damages in the disease process. Degeneration of retinal pigmented epithelium (RPE) cells, photoreceptors, and choriocapillaris associated with aging participate for visual loss. In 2010, AMD involved 6.6% of all blindness cases around the world. Some of the researches have evaluated the replacing of damaged RPE in AMD patients by using the cells from various sources. Today, the advancement of RPE differentiation or generation from stem cells has been gained, and currently, clinical trials are testing the efficiency and safety of replacing degenerated RPE with healthy RPE. However, the therapeutic success of RPE transplantation may be restricted unless the transplanted cells can be adhered, distributed and survive for long-term in the transplanted site without any infections. In recent years a variety of scaffold types were used as a carrier for RPE transplantation and AMD treatment. In this review, we have discussed types of scaffolds; natural or synthetic, solid or hydrogel and their results in RPE replacement. Eventually, our aim is highlighting the novel and best scaffold carriers that may have potentially promoting the efficacy of RPE transplantation.
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Affiliation(s)
- Zahra Tavakoli
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
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19
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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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20
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Harris TI, Paterson CA, Farjood F, Wadsworth ID, Caldwell L, Lewis RV, Jones JA, Vargis E. Utilizing Recombinant Spider Silk Proteins To Develop a Synthetic Bruch's Membrane for Modeling the Retinal Pigment Epithelium. ACS Biomater Sci Eng 2019; 5:4023-4036. [PMID: 33448804 DOI: 10.1021/acsbiomaterials.9b00183] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Spider silks are intriguing biomaterials that have a high potential as innovative biomedical processes and devices. The intent of this study was to evaluate the capacity of recombinant spider silk proteins (rSSps) as a synthetic Bruch's membrane. Nonporous silk membranes were prepared with comparable thicknesses (<10 μm) to that of native Bruch's membrane. Biomechanical characterization was performed prior to seeding cells. The ability of RPE cells (ARPE-19) to attach and grow on the membranes was then evaluated with bright-field and electron microscopy, intracellular DNA quantification, and immunocytochemical staining (ZO-1 and F-actin). Controls were cultured on permeable Transwell support membranes and characterized with the same methods. A size-dependent permeability assay, using FITC-dextran, was used to determine cell-membrane barrier function. Compared to Transwell controls, RPE cells cultured on rSSps membranes developed more native-like "cobblestone" morphologies, exhibited higher intracellular DNA content, and expressed key organizational proteins more consistently. Comparisons of the membranes to native structures revealed that the silk membranes exhibited equivalent thicknesses, biomechanical properties, and barrier functions. These findings support the use of recombinant spider silk proteins to model Bruch's membrane and develop more biomimetic retinal models.
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21
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Park SM, Lee KP, Huh MI, Eom S, Park BU, Kim KH, Park DH, Kim DS, Kim HK. Development of an in vitro 3D choroidal neovascularization model using chemically induced hypoxia through an ultra-thin, free-standing nanofiber membrane. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109964. [PMID: 31499990 DOI: 10.1016/j.msec.2019.109964] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 07/05/2019] [Accepted: 07/08/2019] [Indexed: 12/18/2022]
Abstract
Choroidal neovascularization (CNV) is the pathological growth of new blood vessels in the sub-retinal pigment epithelial (RPE) space from the choroid through a break in the Bruch's membrane (BM). Despite its importance in studying biological processes and drug discovery, the development of an in vitro CNV model that achieves the physiological structures of native RPE-BM-choroidal capillaries (CC) is still challenging. Here, we develop a novel 3D RPE-BM-CC complex biomimetic system on an ultra-thin, free-standing nanofiber membrane. The thickness of the pristine nanofiber membrane is 2.17 ± 0.81 μm, and the Matrigel-coated nanofiber membrane attains a permeability coefficient of 2.95 ± 0.25 × 10-6 cm/s by 40 kDa FITC-dextran, which is similar to the physiological value of the native BM. On the in vitro 3D RPE-BM-CC complex system, we demonstrate endothelial cell invasion across the 3D RPE-BM-CC complex and the mechanism of the invasion by imposing a hypoxic condition, which is thought to be the major pathological cause of CNV. Furthermore, alleviation of the invasion is achieved by treating with chrysin and anti-VEGF antibody. Thus, the in vitro 3D RPE-BM-CC complex biomimetic system can recapitulate essential features of the pathophysiological environment and be employed for the screening of drug candidates to reduce the number of costly and time-consuming in vivo tests or clinical trials.
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Affiliation(s)
- Sang Min Park
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea
| | - Kyoung-Pil Lee
- Bio-Medical Institute, Kyungpook National University Hospital, 807 Hoguk-ro, Buk-gu, Daegu 41404, South Korea; Department of Ophthalmology, School of Medicine, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, South Korea
| | - Man-Il Huh
- Bio-Medical Institute, Kyungpook National University Hospital, 807 Hoguk-ro, Buk-gu, Daegu 41404, South Korea; Department of Ophthalmology, School of Medicine, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, South Korea
| | - Seongsu Eom
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea
| | - Byeong-Ung Park
- Bio-Medical Institute, Kyungpook National University Hospital, 807 Hoguk-ro, Buk-gu, Daegu 41404, South Korea; Department of Ophthalmology, School of Medicine, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, South Korea
| | - Ki Hean Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea
| | - Dong Ho Park
- Department of Ophthalmology, School of Medicine, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, South Korea
| | - Dong Sung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea.
| | - Hong Kyun Kim
- Bio-Medical Institute, Kyungpook National University Hospital, 807 Hoguk-ro, Buk-gu, Daegu 41404, South Korea; Department of Ophthalmology, School of Medicine, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, South Korea.
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22
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Abedin Zadeh M, Khoder M, Al-Kinani AA, Younes HM, Alany RG. Retinal cell regeneration using tissue engineered polymeric scaffolds. Drug Discov Today 2019; 24:1669-1678. [PMID: 31051266 DOI: 10.1016/j.drudis.2019.04.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 04/06/2019] [Accepted: 04/25/2019] [Indexed: 12/24/2022]
Abstract
Degenerative retinal diseases, such as age-related macular degeneration (AMD), can lead to permanent sight loss. Although intravitreal anti-vascular endothelial growth factor (VEGF) and steroid injections are effective for the management of early stages of wet and/or neovascular AMD (nAMD), no proven treatments currently exist for dry AMD or for the advanced geographic atrophy of the retina that follows. Tissue engineering (TE) has recently emerged as a promising alternative to repair retinal damaged and restore its functions. Here, we review recent advances in TE, with a particular emphasis on retinal regeneration. We provide an overview of retinal diseases, followed by a comprehensive review of TE techniques, cells, and polymers used in the fabrication of scaffolds for retinal cell regenerations, in particular the retinal pigment epithelium (RPE).
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Affiliation(s)
- Maria Abedin Zadeh
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston upon Thames, London, United Kingdom; Pharmaceutics & Polymeric Drug Delivery Research Laboratory, College of Pharmacy, Qatar University, Doha, Qatar
| | - Mouhamad Khoder
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston upon Thames, London, United Kingdom; Pharmaceutics & Polymeric Drug Delivery Research Laboratory, College of Pharmacy, Qatar University, Doha, Qatar.
| | - Ali A Al-Kinani
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston upon Thames, London, United Kingdom; Pharmaceutics & Polymeric Drug Delivery Research Laboratory, College of Pharmacy, Qatar University, Doha, Qatar
| | - Husam M Younes
- Pharmaceutics & Polymeric Drug Delivery Research Laboratory, College of Pharmacy, Qatar University, Doha, Qatar; Office of Vice President for Research & Graduate Studies, Qatar University, Doha, Qatar
| | - Raid G Alany
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston upon Thames, London, United Kingdom; Pharmaceutics & Polymeric Drug Delivery Research Laboratory, College of Pharmacy, Qatar University, Doha, Qatar; School of Pharmacy, The University of Auckland, Auckland, New Zealand.
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23
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Sorushanova A, Delgado LM, Wu Z, Shologu N, Kshirsagar A, Raghunath R, Mullen AM, Bayon Y, Pandit A, Raghunath M, Zeugolis DI. The Collagen Suprafamily: From Biosynthesis to Advanced Biomaterial Development. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1801651. [PMID: 30126066 DOI: 10.1002/adma.201801651] [Citation(s) in RCA: 465] [Impact Index Per Article: 93.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 06/03/2018] [Indexed: 05/20/2023]
Abstract
Collagen is the oldest and most abundant extracellular matrix protein that has found many applications in food, cosmetic, pharmaceutical, and biomedical industries. First, an overview of the family of collagens and their respective structures, conformation, and biosynthesis is provided. The advances and shortfalls of various collagen preparations (e.g., mammalian/marine extracted collagen, cell-produced collagens, recombinant collagens, and collagen-like peptides) and crosslinking technologies (e.g., chemical, physical, and biological) are then critically discussed. Subsequently, an array of structural, thermal, mechanical, biochemical, and biological assays is examined, which are developed to analyze and characterize collagenous structures. Lastly, a comprehensive review is provided on how advances in engineering, chemistry, and biology have enabled the development of bioactive, 3D structures (e.g., tissue grafts, biomaterials, cell-assembled tissue equivalents) that closely imitate native supramolecular assemblies and have the capacity to deliver in a localized and sustained manner viable cell populations and/or bioactive/therapeutic molecules. Clearly, collagens have a long history in both evolution and biotechnology and continue to offer both challenges and exciting opportunities in regenerative medicine as nature's biomaterial of choice.
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Affiliation(s)
- Anna Sorushanova
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Luis M Delgado
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Zhuning Wu
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Naledi Shologu
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Aniket Kshirsagar
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Rufus Raghunath
- Centre for Cell Biology and Tissue Engineering, Competence Centre Tissue Engineering for Drug Development (TEDD), Department Life Sciences and Facility Management, Institute for Chemistry and Biotechnology (ICBT), Zürich University of Applied Sciences, Wädenswil, Switzerland
| | | | - Yves Bayon
- Sofradim Production-A Medtronic Company, Trevoux, France
| | - Abhay Pandit
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Michael Raghunath
- Centre for Cell Biology and Tissue Engineering, Competence Centre Tissue Engineering for Drug Development (TEDD), Department Life Sciences and Facility Management, Institute for Chemistry and Biotechnology (ICBT), Zürich University of Applied Sciences, Wädenswil, Switzerland
| | - Dimitrios I Zeugolis
- Regenerative, Modular and Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
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24
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Takiuti JT, Takahashi VKL, Apatoff MBL, Tsang SH. Stem cell therapy and regenerative medicine in RPE degenerative disease: advances and challenges. EXPERT REVIEW OF OPHTHALMOLOGY 2018. [DOI: 10.1080/17469899.2018.1555034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Júlia T. Takiuti
- Department of Ophthalmology, Columbia University, New York, NY, USA
- Jonas Children’s Vision Care and Bernard & Shirlee Brown Glaucoma Laboratory, Columbia University, New York, USA
- Division of Ophthalmology, University of São Paulo Medical School, São Paulo, Brazil
| | - Vitor K. L. Takahashi
- Department of Ophthalmology, Columbia University, New York, NY, USA
- Jonas Children’s Vision Care and Bernard & Shirlee Brown Glaucoma Laboratory, Columbia University, New York, USA
- Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil
| | - Mary Ben L. Apatoff
- Department of Ophthalmology, Columbia University, New York, NY, USA
- Jonas Children’s Vision Care and Bernard & Shirlee Brown Glaucoma Laboratory, Columbia University, New York, USA
- Weill Cornell Medical College, Cornell University, NewYork, NY, USA
| | - Stephen H. Tsang
- Department of Ophthalmology, Columbia University, New York, NY, USA
- Jonas Children’s Vision Care and Bernard & Shirlee Brown Glaucoma Laboratory, Columbia University, New York, USA
- Department of Pathology & Cell Biology, Stem Cell Initiative (CSCI), Institute of Human Nutrition, College of Physicians and Surgeons, Columbia University, New York, NY, USA
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25
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Balagholi S, Rezaei Kanavi M, Alizadeh S, Dabbaghi R, Karami S, Kheiri B, Daftarian N. Effects of fibrin glue as a three-dimensional scaffold in cultivated adult human retinal pigment epithelial cells. J Biomater Appl 2018; 33:514-526. [DOI: 10.1177/0885328218799506] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study was conducted to examine morphological, genotypic, and phenotypic alterations occurring in cultured adult human retinal pigment epithelial cells when encapsulated with different concentrations of fibrin glue. Cultivated adult human retinal pigment epithelial cells were encapsulated with different concentrations of fibrin glue, namely FG1 (42 mg/dl), FG2 (84 mg/dl), FG3 (124 mg/dl), FG4 (210 mg/dl), followed by the evaluation of genetic and cytomorphological changes and protein expression. Cultured adult human retinal pigment epithelial cells showed dendritiform morphology during the early days of encapsulation with fibrin glue. Moreover, an increasing inhibitory effect on cell growth was observed with increasing concentrations of fibrin glue. At the transcriptional level, the expression of MMP2, PAX6, and ITGB1 in FG1-encapsulated cells was significantly higher than that in other treated groups; however, the expression of ACTA2 was lower in all fibrin glue-encapsulated groups compared to that in the controls. Immunocytochemistry showed that FG2-encapsulated cells expressed cytokeratin 8/18, RPE65, and ZO-1 proteins, but not PAX6. In conclusion, fibrin glue at a concentration of 84 mg/dl allows proper encapsulation of adult human retinal pigment epithelial cells, while preserving the morphometric, genotypic, and phenotypic features of the cells. This three-dimensional biopolymer can be considered a reliable vehicle for retinal pigment epithelium cell transplantation in cell-based therapies.
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Affiliation(s)
- Sahar Balagholi
- Ocular Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mozhgan Rezaei Kanavi
- Ocular Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shaban Alizadeh
- Department of Hematology, School of Allied Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Rasul Dabbaghi
- Department of Hematology, Faculty of Medical sciences, Tarbiat Modares University, Tehran, Iran
| | - Samira Karami
- Department of Hematology, School of Allied Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Bahareh Kheiri
- Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Narsis Daftarian
- Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Shi P, Tan YSE, Yeong WY, Li HY, Laude A. A bilayer photoreceptor-retinal tissue model with gradient cell density design: A study of microvalve-based bioprinting. J Tissue Eng Regen Med 2018; 12:1297-1306. [DOI: 10.1002/term.2661] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 01/11/2018] [Accepted: 02/17/2018] [Indexed: 01/09/2023]
Affiliation(s)
- Pujiang Shi
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering; Nanyang Technological University; Singapore
| | - Yong Sheng Edgar Tan
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering; Nanyang Technological University; Singapore
| | - Wai Yee Yeong
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering; Nanyang Technological University; Singapore
| | - Hoi Yeung Li
- School of Biological Sciences; Nanyang Technological University; Singapore
| | - Augustinus Laude
- National Healthcare Group Eye Institute; Tan Tock Seng Hospital; Singapore
- School of Materials Science and Engineering and Lee Kong Chian School of Medicine; Nanyang Technological University; Singapore
- Singapore Eye Research Institute; Singapore
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Tan YSE, Shi PJ, Choo CJ, Laude A, Yeong WY. Tissue engineering of retina and Bruch’s membrane: a review of cells, materials and processes. Br J Ophthalmol 2018; 102:1182-1187. [DOI: 10.1136/bjophthalmol-2017-311390] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 01/07/2018] [Accepted: 02/03/2018] [Indexed: 11/04/2022]
Abstract
The biological, structural and functional configuration of Bruch’s membrane (BM) is significantly relevant to age-related macular degeneration (AMD) and other chorioretinal diseases, and AMD is one of the leading causes of blindness in the elderly worldwide. The configuration may worsen along with the ageing of retinal pigment epithelium and BM that finally leads to AMD. Thus, the scaffold-based tissue-engineered retina provides an innovative alternative for retinal tissue repair. The cell and material requirements for retinal repair are discussed including cell sheet engineering, decellularised membrane and tissue-engineered membranes. Further, the challenges and potential in realising a whole tissue model construct for retinal regeneration are highlighted herein. This review article provides a framework for future development of tissue-engineered retina as a preclinical model and possible treatments for AMD.
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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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Noorani B, Tabandeh F, Yazdian F, Soheili ZS, Shakibaie M, Rahmani S. Thin natural gelatin/chitosan nanofibrous scaffolds for retinal pigment epithelium cells. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1362639] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Behnam Noorani
- Industrial and Environmental Biotechnology Department, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
- Department of Biomedical Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Fatemeh Tabandeh
- Industrial and Environmental Biotechnology Department, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Fatemeh Yazdian
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Tehran, Iran
| | - Zahra-Soheila Soheili
- Department of Molecular Medicine, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Mehdi Shakibaie
- Industrial and Environmental Biotechnology Department, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Shiva Rahmani
- Industrial and Environmental Biotechnology Department, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
- Department of Biomedical Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
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White CE, Olabisi RM. Scaffolds for retinal pigment epithelial cell transplantation in age-related macular degeneration. J Tissue Eng 2017; 8:2041731417720841. [PMID: 28794849 PMCID: PMC5524239 DOI: 10.1177/2041731417720841] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 06/22/2017] [Indexed: 01/18/2023] Open
Abstract
In several retinal degenerative diseases, including age-related macular degeneration, the retinal pigment epithelium, a highly functionalized cell monolayer, becomes dysfunctional. These retinal diseases are marked by early retinal pigment epithelium dysfunction reducing its ability to maintain a healthy retina, hence making the retinal pigment epithelium an attractive target for treatment. Cell therapies, including bolus cell injections, have been investigated with mixed results. Since bolus cell injection does not promote the proper monolayer architecture, scaffolds seeded with retinal pigment epithelium cells and then implanted have been increasingly investigated. Such cell-seeded scaffolds address both the dysfunction of the retinal pigment epithelium cells and age-related retinal changes that inhibit the efficacy of cell-only therapies. Currently, several groups are investigating retinal therapies using seeded cells from a number of cell sources on a variety of scaffolds, such as degradable, non-degradable, natural, and artificial substrates. This review describes the variety of scaffolds that have been developed for the implantation of retinal pigment epithelium cells.
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Affiliation(s)
- Corina E White
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Ronke M Olabisi
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
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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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A Reversibly Sealed, Easy Access, Modular (SEAM) Microfluidic Architecture to Establish In Vitro Tissue Interfaces. PLoS One 2016; 11:e0156341. [PMID: 27227828 PMCID: PMC4881956 DOI: 10.1371/journal.pone.0156341] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 05/12/2016] [Indexed: 11/19/2022] Open
Abstract
Microfluidic barrier tissue models have emerged as advanced in vitro tools to explore interactions with external stimuli such as drug candidates, pathogens, or toxins. However, the procedures required to establish and maintain these systems can be challenging to implement for end users, particularly those without significant in-house engineering expertise. Here we present a module-based approach that provides an easy-to-use workflow to establish, maintain, and analyze microscale tissue constructs. Our approach begins with a removable culture insert that is magnetically coupled, decoupled, and transferred between standalone, prefabricated microfluidic modules for simplified cell seeding, culture, and downstream analysis. The modular approach allows several options for perfusion including standard syringe pumps or integration with a self-contained gravity-fed module for simple cell maintenance. As proof of concept, we establish a culture of primary human microvascular endothelial cells (HMVEC) and report combined surface protein imaging and gene expression after controlled apical stimulation with the bacterial endotoxin lipopolysaccharide (LPS). We also demonstrate the feasibility of incorporating hydrated biomaterial interfaces into the microfluidic architecture by integrating an ultra-thin (< 1 μm), self-assembled hyaluronic acid/peptide amphiphile culture membrane with brain-specific Young’s modulus (~ 1kPa). To highlight the importance of including biomimetic interfaces into microscale models we report multi-tiered readouts from primary rat cortical cells cultured on the self-assembled membrane and compare a panel of mRNA targets with primary brain tissue signatures. We anticipate that the modular approach and simplified operational workflows presented here will enable a wide range of research groups to incorporate microfluidic barrier tissue models into their work.
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Komez A, Baran ET, Erdem U, Hasirci N, Hasirci V. Construction of a patterned hydrogel-fibrous mat bilayer structure to mimic choroid and Bruch's membrane layers of retina. J Biomed Mater Res A 2016; 104:2166-77. [DOI: 10.1002/jbm.a.35756] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 04/19/2016] [Accepted: 04/20/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Aylin Komez
- Middle East Technical University (METU) Graduate Department of Biotechnology; Ankara 06800 Turkey
- BIOMATEN, METU Center of Excellence in Biomaterials & Tissue Engineering; Ankara 06800 Turkey
| | - Erkan T. Baran
- BIOMATEN, METU Center of Excellence in Biomaterials & Tissue Engineering; Ankara 06800 Turkey
| | - Uzeyir Erdem
- Department of Ophthalmology; Gulhane Military Medical Faculty; Etlik Ankara 06018 Turkey
| | - Nesrin Hasirci
- Middle East Technical University (METU) Graduate Department of Biotechnology; Ankara 06800 Turkey
- BIOMATEN, METU Center of Excellence in Biomaterials & Tissue Engineering; Ankara 06800 Turkey
- METU, Department of Chemistry; Ankara 06800 Turkey
| | - Vasif Hasirci
- Middle East Technical University (METU) Graduate Department of Biotechnology; Ankara 06800 Turkey
- BIOMATEN, METU Center of Excellence in Biomaterials & Tissue Engineering; Ankara 06800 Turkey
- Department of Biological Sciences; Ankara 06800 Turkey
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Worthington KS, Green BJ, Rethwisch M, Wiley LA, Tucker BA, Guymon CA, Salem AK. Neuronal Differentiation of Induced Pluripotent Stem Cells on Surfactant Templated Chitosan Hydrogels. Biomacromolecules 2016; 17:1684-95. [PMID: 27008004 DOI: 10.1021/acs.biomac.6b00098] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The development of effective tissue engineering materials requires careful consideration of several properties beyond biocompatibility, including permeability and mechanical stiffness. While surfactant templating has been used for over a decade to control the physical properties of photopolymer materials, the potential benefit of this technique with regard to biomaterials has yet to be fully explored. Herein we demonstrate that surfactant templating can be used to tune the water uptake and compressive modulus of photo-cross-linked chitosan hydrogels. Interestingly, templating with quaternary ammonium surfactants also hedges against property fluctuations that occur with changing pH. Further, we demonstrate that, after adequate surfactant removal, these materials are nontoxic, support the attachment of induced pluripotent stem cells and facilitate stem cell differentiation to neuronal phenotypes. These results demonstrate the utility of surfactant templating for optimizing the properties of biomaterials intended for a variety of applications, including retinal regeneration.
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Affiliation(s)
- Kristan S Worthington
- Department of Chemical and Biochemical Engineering, ‡Wynn Institute for Vision Research, Department of Ophthalmology and Visual Sciences, and §Division of Pharmaceutics and Translational Therapeutics, Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa , Iowa City, Iowa 52242, United States
| | - Brian J Green
- Department of Chemical and Biochemical Engineering, ‡Wynn Institute for Vision Research, Department of Ophthalmology and Visual Sciences, and §Division of Pharmaceutics and Translational Therapeutics, Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa , Iowa City, Iowa 52242, United States
| | - Mary Rethwisch
- Department of Chemical and Biochemical Engineering, ‡Wynn Institute for Vision Research, Department of Ophthalmology and Visual Sciences, and §Division of Pharmaceutics and Translational Therapeutics, Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa , Iowa City, Iowa 52242, United States
| | - Luke A Wiley
- Department of Chemical and Biochemical Engineering, ‡Wynn Institute for Vision Research, Department of Ophthalmology and Visual Sciences, and §Division of Pharmaceutics and Translational Therapeutics, Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa , Iowa City, Iowa 52242, United States
| | - Budd A Tucker
- Department of Chemical and Biochemical Engineering, ‡Wynn Institute for Vision Research, Department of Ophthalmology and Visual Sciences, and §Division of Pharmaceutics and Translational Therapeutics, Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa , Iowa City, Iowa 52242, United States
| | - C Allan Guymon
- Department of Chemical and Biochemical Engineering, ‡Wynn Institute for Vision Research, Department of Ophthalmology and Visual Sciences, and §Division of Pharmaceutics and Translational Therapeutics, Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa , Iowa City, Iowa 52242, United States
| | - Aliasger K Salem
- Department of Chemical and Biochemical Engineering, ‡Wynn Institute for Vision Research, Department of Ophthalmology and Visual Sciences, and §Division of Pharmaceutics and Translational Therapeutics, Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa , Iowa City, Iowa 52242, United States
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Sharma KP, Harniman R, Farrugia T, Briscoe WH, Perriman AW, Mann S. Dynamic Behavior in Enzyme-Polymer Surfactant Hydrogel Films. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:1597-1602. [PMID: 26676924 DOI: 10.1002/adma.201504740] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 10/15/2015] [Indexed: 06/05/2023]
Abstract
Dynamic protein-polymer surfactant films are highly hydrophilic and show a soft solid to hydrogel transition upon hydration to produce a swollen hydrogel. An unusual reversible autospreading/self-folding response is observed when the water-saturated films are transferred from water into air.
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Affiliation(s)
- Kamendra P Sharma
- Centre for Organized Matter Chemistry and Centre for Protolife Research, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Robert Harniman
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Thomas Farrugia
- Centre for Organized Matter Chemistry and Centre for Protolife Research, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Wuge H Briscoe
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Adam W Perriman
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, UK
| | - Stephen Mann
- Centre for Organized Matter Chemistry and Centre for Protolife Research, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
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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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Hahner J, Hoyer M, Hillig S, Schulze-Tanzil G, Meyer M, Schröpfer M, Lohan A, Garbe LA, Heinrich G, Breier A. Diffusion chamber system for testing of collagen-based cell migration barriers for separation of ligament enthesis zones in tissue-engineered ACL constructs. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2015; 26:1085-99. [PMID: 26300365 DOI: 10.1080/09205063.2015.1076714] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A temporary barrier separating scaffold zones seeded with different cell types prevents faster growing cells from overgrowing co-cultured cells within the same construct. This barrier should allow sufficient nutrient diffusion through the scaffold. The aim of this study was to test the effect of two variants of collagen-based barriers on macromolecule diffusion, viability, and the spreading efficiency of primary ligament cells on embroidered scaffolds. Two collagen barriers, a thread consisting of a twisted film tape and a sponge, were integrated into embroidered poly(lactic-co-caprolactone) and polypropylene scaffolds, which had the dimension of lapine anterior cruciate ligaments (ACL). A diffusion chamber system was designed and established to monitor nutrient diffusion using fluorescein isothiocyanate-labeled dextran of different molecular weights (20, 40, 150, 500 kDa). Vitality of primary lapine ACL cells was tested at days 7 and 14 after seeding using fluorescein diacetate and ethidium bromide staining. Cell spreading on the scaffold surface was measured using histomorphometry. Nuclei staining of the cross-sectioned scaffolds revealed the penetration of ligament cells through both barrier types. The diffusion chamber was suitable to characterize the diffusivity of dextran molecules through embroidered scaffolds with or without integrated collagen barriers. The diffusion coefficients were generally significantly lower in scaffolds with barriers compared to those without barriers. No significant differences between diffusion coefficients of both barrier types were detected. Both barriers were cyto-compatible and prevented most of the ACL cells from crossing the barrier, whereby the collagen thread was easier to handle and allowed a higher rate of cell spreading.
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Affiliation(s)
- J Hahner
- a Leibniz-Institut für Polymerforschung, Institute of Polymer Materials , Hohe Straße 6, 01069 Dresden , Germany
| | - M Hoyer
- b Central Laboratory , DRK Manniske-Hospital , An der Wipper 2, 06567 Bad Frankenhausen , Germany.,c Department of Bioanalytics , Technical University , Seestraße 13, 13353 Berlin , Germany
| | - S Hillig
- a Leibniz-Institut für Polymerforschung, Institute of Polymer Materials , Hohe Straße 6, 01069 Dresden , Germany
| | - G Schulze-Tanzil
- d Institute of Anatomy , Paracelsus Medical University , Salzburg and Nuremberg, Prof. Ernst Nathan Straße 1, 90340 Nuremberg , Germany.,e Department of Trauma and Reconstructive Surgery , Charité-Universitätsmedizin Berlin , Campus Benjamin Franklin, Garystrasse 5, 14195 Berlin , Germany
| | - M Meyer
- f Research Institute of Leather and Plastic Sheeting - FILK , Meißner Ring 1-5, 09599 Freiberg , Germany
| | - M Schröpfer
- f Research Institute of Leather and Plastic Sheeting - FILK , Meißner Ring 1-5, 09599 Freiberg , Germany
| | - A Lohan
- g Forschungseinrichtungen für Experimentelle Medizin, Charité-Universitätsmedizin Berlin , Campus Benjamin Franklin, Kramerstr.6-10, 12207 Berlin , Germany
| | - L-A Garbe
- c Department of Bioanalytics , Technical University , Seestraße 13, 13353 Berlin , Germany
| | - G Heinrich
- a Leibniz-Institut für Polymerforschung, Institute of Polymer Materials , Hohe Straße 6, 01069 Dresden , Germany.,h Institute of Materials Science , Technische Universität Dresden , Helmholtzstraße 10, 01062 Dresden , Germany
| | - A Breier
- a Leibniz-Institut für Polymerforschung, Institute of Polymer Materials , Hohe Straße 6, 01069 Dresden , Germany
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In vitro and in vivo ocular biocompatibility of electrospun poly(ɛ-caprolactone) nanofibers. Eur J Pharm Sci 2015; 73:9-19. [DOI: 10.1016/j.ejps.2015.03.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 01/21/2015] [Accepted: 03/03/2015] [Indexed: 11/23/2022]
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Regenerating Retinal Pigment Epithelial Cells to Cure Blindness: A Road Towards Personalized Artificial Tissue. CURRENT STEM CELL REPORTS 2015; 1:79-91. [PMID: 26146605 DOI: 10.1007/s40778-015-0014-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Retinal pigment epithelium (RPE) is a polarized monolayer tissue that functions to support the health and integrity of retinal photoreceptors (PRs). RPE atrophy has been linked to pathogenesis of age-related macular degeneration (AMD), a leading cause of blindness in elderly in the USA. RPE atrophy in AMD leads to the PR cell death and vision loss. It is thought that replacing diseased RPE with healthy RPE tissue can prevent PR cell death. Retinal surgical innovations have provided proof-of-principle data that autologous RPE tissue can replace diseased macular RPE and provide visual rescue in AMD patients. Current efforts are focused on developing an in vitro tissue using natural and synthetic scaffolds to generate a polarized functional RPE monolayer. In the future, these tissue-engineering approaches combined with pluripotent stem cell technology will lead to the development of personalized and "off-the-shelf" cell therapies for AMD patients. This review summarizes the historical development and ongoing efforts in surgical and in vitro tissue engineering techniques to develop a three-dimensional therapeutic native RPE tissue substitute.
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Gonçalves S, Padrão J, Rodrigues IP, Silva JP, Sencadas V, Lanceros-Mendez S, Girão H, Dourado F, Rodrigues LR. Bacterial Cellulose As a Support for the Growth of Retinal Pigment Epithelium. Biomacromolecules 2015; 16:1341-51. [DOI: 10.1021/acs.biomac.5b00129] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Inês Patrício Rodrigues
- Centre
of Ophthalmology and Vision Sciences, IBILI-Faculty of Medicine, University of Coimbra, 3000-354, Coimbra, Portugal
- CNC
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517, Coimbra, Portugal
| | | | | | | | - Henrique Girão
- Centre
of Ophthalmology and Vision Sciences, IBILI-Faculty of Medicine, University of Coimbra, 3000-354, Coimbra, Portugal
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41
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Sorkio AE, Vuorimaa-Laukkanen EP, Hakola HM, Liang H, Ujula TA, Valle-Delgado JJ, Österberg M, Yliperttula ML, Skottman H. Biomimetic collagen I and IV double layer Langmuir-Schaefer films as microenvironment for human pluripotent stem cell derived retinal pigment epithelial cells. Biomaterials 2015; 51:257-269. [PMID: 25771016 DOI: 10.1016/j.biomaterials.2015.02.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 01/26/2015] [Accepted: 02/01/2015] [Indexed: 12/11/2022]
Abstract
The environmental cues received by the cells from synthetic substrates in vitro are very different from those they receive in vivo. In this study, we applied the Langmuir-Schaefer (LS) deposition, a variant of Langmuir-Blodgett technique, to fabricate a biomimetic microenvironment mimicking the structure and organization of native Bruch's membrane for the production of the functional human embryonic stem cell derived retinal pigment epithelial (hESC-RPE) cells. Surface pressure-area isotherms were measured simultaneously with Brewster angle microscopy to investigate the self-assembly of human collagens type I and IV on air-subphase interface. Furthermore, the structure of the prepared collagen LS films was characterized with scanning electron microscopy, atomic force microscopy, surface plasmon resonance measurements and immunofluorescent staining. The integrity of hESC-RPE on double layer LS films was investigated by measuring transepithelial resistance and permeability of small molecular weight substance. Maturation and functionality of hESC-RPE cells on double layer collagen LS films was further assessed by RPE-specific gene and protein expression, growth factor secretion, and phagocytic activity. Here, we demonstrated that the prepared collagen LS films have layered structure with oriented fibers corresponding to architecture of the uppermost layers of Bruch's membrane and result in increased barrier properties and functionality of hESC-RPE cells as compared to the commonly used dip-coated controls.
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Affiliation(s)
- Anni E Sorkio
- BioMediTech, University of Tampere FM5/BMT, 33014 University of Tampere, Finland.
| | - Elina P Vuorimaa-Laukkanen
- Department of Chemistry and Bioengineering, Tampere University of Technology, Korkeakoulunkatu 8, 33720 Tampere, Finland
| | - Hanna M Hakola
- Department of Chemistry and Bioengineering, Tampere University of Technology, Korkeakoulunkatu 8, 33720 Tampere, Finland
| | - Huamin Liang
- Department of Chemistry and Bioengineering, Tampere University of Technology, Korkeakoulunkatu 8, 33720 Tampere, Finland
| | - Tiina A Ujula
- Department of Forest Products Technology, School of Chemical Technology, Aalto University, P.O. Box 16300, 00076 Aalto, Finland
| | - Juan José Valle-Delgado
- Department of Forest Products Technology, School of Chemical Technology, Aalto University, P.O. Box 16300, 00076 Aalto, Finland
| | - Monika Österberg
- Department of Forest Products Technology, School of Chemical Technology, Aalto University, P.O. Box 16300, 00076 Aalto, Finland
| | - Marjo L Yliperttula
- Division of Biopharmaceutical Sciences, Centre for Drug Research, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5, 00790 Helsinki, Finland
| | - Heli Skottman
- BioMediTech, University of Tampere FM5/BMT, 33014 University of Tampere, Finland
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42
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Yeelack W, Benjakul S, Meesane J. A mimicked collagen layer/silk fibroin film as a cardio patch scaffold. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2014. [DOI: 10.1680/bbn.14.00027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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43
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Xiang P, Wu KC, Zhu Y, Xiang L, Li C, Chen DL, Chen F, Xu G, Wang A, Li M, Jin ZB. A novel Bruch's membrane-mimetic electrospun substrate scaffold for human retinal pigment epithelium cells. Biomaterials 2014; 35:9777-9788. [DOI: 10.1016/j.biomaterials.2014.08.040] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 08/24/2014] [Indexed: 12/28/2022]
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44
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Sahiner M, Alpaslan D, Bitlisli BO. Collagen-based hydrogel films as drug-delivery devices with antimicrobial properties. Polym Bull (Berl) 2014. [DOI: 10.1007/s00289-014-1235-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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45
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Lee GY, Kang SJ, Lee SJ, Song JE, Joo CK, Lee D, Khang G. Effects of small intestinal submucosa content on the adhesion and proliferation of retinal pigment epithelial cells on SIS-PLGA films. J Tissue Eng Regen Med 2014; 11:99-108. [DOI: 10.1002/term.1882] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Revised: 02/28/2013] [Accepted: 01/31/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Ga Young Lee
- Department of BIN Fusion Technology, Department of Polymer Nano Science and Technology and Polymer Fusion Research Centre; Chonbuk National University; Jeonju Korea
| | - Su Ji Kang
- Department of BIN Fusion Technology, Department of Polymer Nano Science and Technology and Polymer Fusion Research Centre; Chonbuk National University; Jeonju Korea
| | - So Jin Lee
- Department of BIN Fusion Technology, Department of Polymer Nano Science and Technology and Polymer Fusion Research Centre; Chonbuk National University; Jeonju Korea
| | - Jeong Eun Song
- Department of BIN Fusion Technology, Department of Polymer Nano Science and Technology and Polymer Fusion Research Centre; Chonbuk National University; Jeonju Korea
| | - Choun-Ki Joo
- Department of Ophthalmology and Visual Science, College of Medicine; Catholic University; Seoul Korea
| | - Dongwon Lee
- Department of BIN Fusion Technology, Department of Polymer Nano Science and Technology and Polymer Fusion Research Centre; Chonbuk National University; Jeonju Korea
| | - Gilson Khang
- Department of BIN Fusion Technology, Department of Polymer Nano Science and Technology and Polymer Fusion Research Centre; Chonbuk National University; Jeonju Korea
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46
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Pitt DW, Treharne AJ, Thomson HA, Scott JA, Lotery AJ, Grossel MC. Improving cellular adhesion on scaffolds for transplantation: synthesising a poly(MMA-co-PEGM) network. J Mater Chem B 2013; 1:6627-6633. [PMID: 32261271 DOI: 10.1039/c3tb21248c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrospun fibrous matrices prepared from methacrylate-based copolymers are investigated as a tool for retinal pigment epithelium (RPE) transplantation in the treatment of degenerative retinal diseases. Human RPE cells were used to probe the cell-surface interactions on these copolymer matrices. For the first time, simple changes in chemical functionality have been found to induce gel formation of these methacrylate backbone copolymers in vitro. This effect is shown to significantly improve RPE cell adhesion and survival.
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Affiliation(s)
- Darren W Pitt
- Faculty of Natural and Environmental Sciences, University of Southampton, Highfield, Southampton, SO17 1BJ, UK.
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47
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Primordium of an artificial Bruch's membrane made of nanofibers for engineering of retinal pigment epithelium cell monolayers. Acta Biomater 2013; 9:9414-22. [PMID: 23917149 DOI: 10.1016/j.actbio.2013.07.029] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 07/22/2013] [Accepted: 07/24/2013] [Indexed: 01/24/2023]
Abstract
Transplanted retinal pigment epithelium (RPE) cells hold promise for treatment of age-related macular degeneration (AMD) and Stargardt disease (SD), but it is conceivable that the degenerated host Bruch's membrane (BM) as a natural substrate for RPE might not optimally support transplanted cell survival with correct cellular organization. We fabricated novel ultrathin three-dimensional (3-D) nanofibrous membranes from collagen type I and poly(lactic-co-glycolic acid) (PLGA) by an advanced clinical-grade needle-free electrospinning process. The nanofibrillar 3-D networks closely mimicked the fibrillar architecture of the native inner collagenous layer of human BM. Human RPE cells grown on our nanofibrous membranes bore a striking resemblance to native human RPE. They exhibited a correctly orientated monolayer with a polygonal cell shape and abundant sheet-like microvilli on their apical surfaces. RPE cells built tight junctions and expressed RPE65 protein. Flat 2-D PLGA film and cover glass as controls delivered inferior RPE layers. Our nanofibrous membranes may imitate the natural BM to such extent that they allow for the engineering of an in vivo-like human RPE monolayer that maintains the natural biofunctional characteristics. Such ultrathin membranes may provide a promising vehicle for a functional RPE cell monolayer implantation in the subretinal space in patients with AMD or SD.
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48
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Chen YM, Liu ZQ, Feng ZH, Xu F, Liu JK. Adhesive protein-free synthetic hydrogels for retinal pigment epithelium cell culture with low ROS level. J Biomed Mater Res A 2013; 102:2258-67. [DOI: 10.1002/jbm.a.34904] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Accepted: 07/24/2013] [Indexed: 01/02/2023]
Affiliation(s)
- Yong Mei Chen
- Department of Chemistry; School of Science; MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter; Xi'an Jiaotong University; Xi'an 710049 People's Republic of China
- Biomedical Engineering and Biomechanics Center; Xi'an Jiaotong University; Xi'an 710049 People's Republic of China
| | - Zhen Qi Liu
- Department of Chemistry; School of Science; MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter; Xi'an Jiaotong University; Xi'an 710049 People's Republic of China
- Biomedical Engineering and Biomechanics Center; Xi'an Jiaotong University; Xi'an 710049 People's Republic of China
| | - Zhi Hui Feng
- Center for Mitochondrial Biology and Medicine; The Key Laboratory of Biomedical Information Engineering of Ministry of Education; School of Life Science and Technology and Frontier Institute of Life Science, FIST, Xi'an Jiaotong University; Xi'an 710049 People's Republic of China
| | - Feng Xu
- Biomedical Engineering and Biomechanics Center; Xi'an Jiaotong University; Xi'an 710049 People's Republic of China
- Center for Mitochondrial Biology and Medicine; The Key Laboratory of Biomedical Information Engineering of Ministry of Education; School of Life Science and Technology and Frontier Institute of Life Science, FIST, Xi'an Jiaotong University; Xi'an 710049 People's Republic of China
| | - Jian Kang Liu
- Center for Mitochondrial Biology and Medicine; The Key Laboratory of Biomedical Information Engineering of Ministry of Education; School of Life Science and Technology and Frontier Institute of Life Science, FIST, Xi'an Jiaotong University; Xi'an 710049 People's Republic of China
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49
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50
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Da Silva GR, Da Silva-Cunha A, Vieira LC, Silva LM, Ayres E, Oréfice RL, Fialho SL, Saliba JB, Behar-Cohen F. Montmorillonite clay based polyurethane nanocomposite as substrate for retinal pigment epithelial cell growth. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:1309-1317. [PMID: 23430334 DOI: 10.1007/s10856-013-4885-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 02/04/2013] [Indexed: 06/01/2023]
Abstract
The subretinal transplantation of retinal pigment epithelial cells (RPE cells) grown on polymeric supports may have interest in retinal diseases affecting RPE cells. In this study, montmorillonite based polyurethane nanocomposite (PU-NC) was investigated as substrate for human RPE cell growth (ARPE-19 cells). The ARPE-19 cells were seeded on the PU-NC, and cell viability, proliferation and differentiation were investigated. The results indicated that ARPE-19 cells attached, proliferated onto the PU-NC, and expressed occludin. The in vivo ocular biocompatibility of the PU-NC was assessed by using the HET-CAM; and through its implantation under the retina. The direct application of the nanocomposite onto the CAM did not compromise the vascular tissue in the CAM surface, suggesting no ocular irritancy of the PU-NC film. The nanocomposite did not elicit any inflammatory response when implanted into the eye of rats. The PU-NC may have potential application as a substrate for RPE cell transplantation.
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Affiliation(s)
- Gisele Rodrigues Da Silva
- School of Pharmacy, Federal University of São João Del Rei, Av. Sebastião Gonçalves Coelho 400, Chanadour, Divinópolis, Minas Gerais 35500-296, Brazil.
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