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Dujardin C, Habeler W, Monville C, Letourneur D, Simon-Yarza T. Advances in the engineering of the outer blood-retina barrier: From in-vitro modelling to cellular therapy. Bioact Mater 2024; 31:151-177. [PMID: 37637086 PMCID: PMC10448242 DOI: 10.1016/j.bioactmat.2023.08.003] [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: 06/05/2023] [Revised: 07/13/2023] [Accepted: 08/06/2023] [Indexed: 08/29/2023] Open
Abstract
The outer blood-retina barrier (oBRB), crucial for the survival and the proper functioning of the overlying retinal layers, is disrupted in numerous diseases affecting the retina, leading to the loss of the photoreceptors and ultimately of vision. To study the oBRB and/or its degeneration, many in vitro oBRB models have been developed, notably to investigate potential therapeutic strategies against retinal diseases. Indeed, to this day, most of these pathologies are untreatable, especially once the first signs of degeneration are observed. To cure those patients, a current strategy is to cultivate in vitro a mature oBRB epithelium on a custom membrane that is further implanted to replace the damaged native tissue. After a description of the oBRB and the related diseases, this review presents an overview of the oBRB models, from the simplest to the most complex. Then, we propose a discussion over the used cell types, for their relevance to study or treat the oBRB. Models designed for in vitro applications are then examined, by paying particular attention to the design evolution in the last years, the development of pathological models and the benefits of co-culture models, including both the retinal pigment epithelium and the choroid. Lastly, this review focuses on the models developed for in vivo implantation, with special emphasis on the choice of the material, its processing and its characterization, before discussing the reported pre-clinical and clinical trials.
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Affiliation(s)
- Chloé Dujardin
- Université Paris Cité, Université Sorbonne Paris Nord, Laboratory for Vascular Translational Science (LVTS) INSERM-U1148, 75018 Paris, France
| | - Walter Habeler
- INSERM U861, I-Stem, AFM, Institute for Stem Cell Therapy and Exploration of Monogenic Diseases, 91100, Corbeil-Essonnes, France
- U861, I-Stem, AFM, Université Paris-Saclay, Université D’Evry, 91100, Corbeil-Essonnes, France
- CECS, Centre D’étude des Cellules Souches, 91100, Corbeil-Essonnes, France
| | - Christelle Monville
- INSERM U861, I-Stem, AFM, Institute for Stem Cell Therapy and Exploration of Monogenic Diseases, 91100, Corbeil-Essonnes, France
- U861, I-Stem, AFM, Université Paris-Saclay, Université D’Evry, 91100, Corbeil-Essonnes, France
| | - Didier Letourneur
- Université Paris Cité, Université Sorbonne Paris Nord, Laboratory for Vascular Translational Science (LVTS) INSERM-U1148, 75018 Paris, France
| | - Teresa Simon-Yarza
- Université Paris Cité, Université Sorbonne Paris Nord, Laboratory for Vascular Translational Science (LVTS) INSERM-U1148, 75018 Paris, France
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Sasseville S, Karami S, Tchatchouang A, Charpentier P, Anney P, Gobert D, Proulx S. Biomaterials used for tissue engineering of barrier-forming cell monolayers in the eye. Front Bioeng Biotechnol 2023; 11:1269385. [PMID: 37840667 PMCID: PMC10569698 DOI: 10.3389/fbioe.2023.1269385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/15/2023] [Indexed: 10/17/2023] Open
Abstract
Cell monolayers that form a barrier between two structures play an important role for the maintenance of tissue functionality. In the anterior portion of the eye, the corneal endothelium forms a barrier that controls fluid exchange between the aqueous humor of the anterior chamber and the corneal stroma. This monolayer is central in the pathogenesis of Fuchs endothelial corneal dystrophy (FECD). FECD is a common corneal disease, in which corneal endothelial cells deposit extracellular matrix that increases the thickness of its basal membrane (Descemet's membrane), and forms excrescences (guttae). With time, there is a decrease in endothelial cell density that generates vision loss. Transplantation of a monolayer of healthy corneal endothelial cells on a Descemet membrane substitute could become an interesting alternative for the treatment of this pathology. In the back of the eye, the retinal pigment epithelium (RPE) forms the blood-retinal barrier, controlling fluid exchange between the choriocapillaris and the photoreceptors of the outer retina. In the retinal disease dry age-related macular degeneration (dry AMD), deposits (drusen) form between the RPE and its basal membrane (Bruch's membrane). These deposits hinder fluid exchange, resulting in progressive RPE cell death, which in turn generates photoreceptor cell death, and vision loss. Transplantation of a RPE monolayer on a Bruch's membrane/choroidal stromal substitute to replace the RPE before photoreceptor cell death could become a treatment alternative for this eye disease. This review will present the different biomaterials that are proposed for the engineering of a monolayer of corneal endothelium for the treatment of FECD, and a RPE monolayer for the treatment of dry AMD.
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Affiliation(s)
- Samantha Sasseville
- Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX; Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, QC, Canada
- Département d’ophtalmologie et d’oto-rhino-laryngologie-chirurgie cervico-faciale, Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Samira Karami
- Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX; Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, QC, Canada
- Département d’ophtalmologie et d’oto-rhino-laryngologie-chirurgie cervico-faciale, Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Ange Tchatchouang
- Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX; Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, QC, Canada
- Département d’ophtalmologie et d’oto-rhino-laryngologie-chirurgie cervico-faciale, Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Pascale Charpentier
- Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX; Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, QC, Canada
- Département d’ophtalmologie et d’oto-rhino-laryngologie-chirurgie cervico-faciale, Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Princia Anney
- Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX; Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, QC, Canada
- Département d’ophtalmologie et d’oto-rhino-laryngologie-chirurgie cervico-faciale, Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Delphine Gobert
- Département d’ophtalmologie et d’oto-rhino-laryngologie-chirurgie cervico-faciale, Faculté de Médecine, Université Laval, Québec, QC, Canada
- Centre universitaire d’ophtalmologie (CUO), Hôpital du Saint-Sacrement, CHU de Québec-Université Laval, Québec, QC, Canada
| | - Stéphanie Proulx
- Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX; Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, QC, Canada
- Département d’ophtalmologie et d’oto-rhino-laryngologie-chirurgie cervico-faciale, Faculté de Médecine, Université Laval, Québec, QC, Canada
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Jaya Prakash N, Wang X, Kandasubramanian B. Regenerated silk fibroin loaded with natural additives: a sustainable approach towards health care. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2023:1-38. [PMID: 36648394 DOI: 10.1080/09205063.2023.2170137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
According to World Health Organization (WHO), on average, 0.5 Kg of hazardous waste is generated per bed every day in high-income countries. The adverse effects imposed by synthetic materials and chemicals on the environment and humankind have urged researchers to explore greener technologies and materials. Amidst of all the natural fibers, silk fibroin (SF), by virtue of its superior toughness (6 × 104∼16 × 104 J/kg), tensile strength (47.2-67.7 MPa), tunable biodegradability, excellent Young's modulus (1.9-3.9 GPa), presence of functional groups, ease of processing, and biocompatibility has garnered an enormous amount of scientific interests. The use of silk fibroin conjoint with purely natural materials can be an excellent solution for the adverse effects of chemical-based treatment techniques. Considering this noteworthiness, vigorous research is going on in silk-based biomaterials, and it is opening up new vistas of opportunities. This review enswathes the structural aspects of silk fibroin along with its potency to form composites with other natural materials, such as curcumin, keratin, alginate, hydroxyapatite, hyaluronic acid, and cellulose, that can replace the conventionally used synthetic materials, providing a sustainable pathway to biomedical engineering. It was observed that a large amount of polar functional moieties present on the silk fibroin surface enables them to compatibilize easily with the natural additives. The conjunction of silk with natural additives initiates synergistic interactions that mitigate the limitations offered by individual units as well as enhance the applicability of materials. Further the current status and challenges in the commercialization of silk-based biomedical devices are discussed.
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Affiliation(s)
- Niranjana Jaya Prakash
- Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Structural Composites Laboratory, Girinagar, Pune, Maharashtra, India
| | - Xungai Wang
- Fiber Science and Technology, School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Balasubramanian Kandasubramanian
- Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Structural Composites Laboratory, Girinagar, Pune, Maharashtra, India
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Alula K, Adali T, Han Ebedal O. Preparation characterization and blood compatibility studies of silk fibroin/gelatin/curcumin injectable hydrogels. Biomed Mater Eng 2023; 34:77-93. [PMID: 35988211 DOI: 10.3233/bme-221407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND Hydrogel is a three-dimensional structure that has the potential to absorb and retain water within the mesh of its porous network structure. Currently hydrogels made from natural biopolymers are preferred in the discipline of biomedical applications because of their blood compatibility, adhesion of platelets and protein binding, ease of administration and delivery of ingredients to the place of action. OBJECTIVE The aim of this work was to prepare a hydrogel from natural biopolymers and evaluate its blood compatibility, swelling nature, prolonged degradation and morphological features in order to further recommend its clinical use. METHODS To prepare hydrogels, different combinations of gelatin, dialyzed SF, curcumin and N, N methylene bisacrylamide (MBA) were evenly mixed on a magnetic stirrer. After an hour of the gelation process it was kept in a refrigerator at 4 °C. For the characterization and biocompatibility studies of hydrogel, the swelling test and biodegradation analysis, SEM, FTIR, in vitro coagulation tests, total serum albumin and cholesterol level analysis were applied. RESULTS Injectable hydrogels were successfully made with significantly correlated combinations of polymers. The analysis of physiochemical biocompatibility studies and morphological characterization were done effectively. CONCLUSION The results of the study indicate that hydrogels made from natural biopolymers are a potential source and suitable matrices with excellent biocompatible nature acting as a useful device in delivering drugs.
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Affiliation(s)
- Kassahun Alula
- Department of Biomedical Engineering, Faculty of Engineering, Near East University, Mersin, Turkey.,Tissue Engineering and Biomaterials Research Center, Near East University, Mersin, Turkey.,College of Natural and Computational Science, Mizan-Tepi University, Tepi, Ethiopia
| | - Terin Adali
- Department of Biomedical Engineering, Faculty of Engineering, Near East University, Mersin, Turkey.,Tissue Engineering and Biomaterials Research Center, Near East University, Mersin, Turkey.,SUNUM Nanotechnology Research Center, Sabanci University, Istanbul, Turkey
| | - Oğuz Han Ebedal
- Clinical Biochemistry Laboratory, Near East University Hospital, Mersin, Turkey
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Akulo KA, Adali T, Moyo MTG, Bodamyali T. Intravitreal Injectable Hydrogels for Sustained Drug Delivery in Glaucoma Treatment and Therapy. Polymers (Basel) 2022; 14:polym14122359. [PMID: 35745935 PMCID: PMC9230531 DOI: 10.3390/polym14122359] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 05/30/2022] [Accepted: 06/02/2022] [Indexed: 12/11/2022] Open
Abstract
Glaucoma is extensively treated with topical eye drops containing drugs. However, the retention time of the loaded drugs and the in vivo bioavailability of the drugs are highly influenced before reaching the targeted area sufficiently, due to physiological and anatomical barriers of the eye, such as rapid nasolacrimal drainage. Poor intraocular penetration and frequent administration may also cause ocular cytotoxicity. A novel approach to overcome these drawbacks is the use of injectable hydrogels administered intravitreously for sustained drug delivery to the target site. These injectable hydrogels are used as nanocarriers to intimately interact with specific diseased ocular tissues to increase the therapeutic efficacy and drug bioavailability of the anti-glaucomic drugs. The human eye is very delicate, and is sensitive to contact with any foreign body material. However, natural biopolymers are non-reactive, biocompatible, biodegradable, and lack immunogenic and inflammatory responses to the host whenever they are incorporated in drug delivery systems. These favorable biomaterial properties have made them widely applicable in biomedical applications, with minimal adversity. This review highlights the importance of using natural biopolymer-based intravitreal hydrogel drug delivery systems for glaucoma treatment over conventional methods.
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Affiliation(s)
- Kassahun Alula Akulo
- Department of Biomedical Engineering, Faculty of Engineering, Near East University, Mersin 10, Lefkoşa 99138, Turkey; (K.A.A.); (M.T.G.M.)
- Tissue Engineering and Biomaterials Research Center, Near East University, Mersin 10, Lefkoşa 99138, Turkey
| | - Terin Adali
- Department of Biomedical Engineering, Faculty of Engineering, Near East University, Mersin 10, Lefkoşa 99138, Turkey; (K.A.A.); (M.T.G.M.)
- Tissue Engineering and Biomaterials Research Center, Near East University, Mersin 10, Lefkoşa 99138, Turkey
- Nanotechnology Research Center, Sabanci University SUNUM, Istanbul 34956, Turkey
- Correspondence:
| | - Mthabisi Talent George Moyo
- Department of Biomedical Engineering, Faculty of Engineering, Near East University, Mersin 10, Lefkoşa 99138, Turkey; (K.A.A.); (M.T.G.M.)
- Tissue Engineering and Biomaterials Research Center, Near East University, Mersin 10, Lefkoşa 99138, Turkey
| | - Tulin Bodamyali
- Department of Pathology, Faculty of Medicine, Girne American University, Mersin 10, Girne 99428, Turkey;
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Palladium and silk fibroin-containing magnetic nano-biocomposite: a highly efficient heterogeneous nanocatalyst in Heck coupling reactions. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04462-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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7
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Mann A, Lydon F, Tighe BJ, Suzuki S, Chirila TV. A study of the permeation and water-structuring behavioural properties of PEG modified hydrated silk fibroin membranes. Biomed Phys Eng Express 2021; 7. [PMID: 33930887 DOI: 10.1088/2057-1976/abfd82] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 04/30/2021] [Indexed: 12/19/2022]
Abstract
The potential of naturally occurring substances as a source of biomedical materials is well-recognised and is being increasingly exploited. Silk fibroin membranes derived fromBombyx morisilk cocoons exemplify this, for example as substrata for the growth of ocular cells with the aim of generating biomaterial-cell constructs for tissue engineering. This study investigated the transport properties of selected silk fibroin membranes under conditions that allowed equilibrium hydration of the membranes to be maintained. The behaviour of natural fibroin membranes was compared with fibroin membranes that have been chemically modified with poly(ethylene glycol). The permeation of the smaller hydrated sodium ion was higher than that of the hydrated calcium ion for all three ethanol treated membranes investigated. The PEG and HRP-modified C membrane, which had the highest water content at 59.6 ± 1.5% exhibited the highest permeation of the three membranes at 95.7 ± 2.8 × 10-8cm2s-1compared with 17.9 ± 0.9 × 10-8cm2s-1and 8.7 ± 1.7 × 10-8cm2s-1for membranes A and B respectively for the NaCl permeant. Poly(ethylene glycol) was used to increase permeability while exploiting the crosslinking capabilities of horseradish peroxidase to increase the compressive strength of the membrane. Importantly, we have established that the permeation behaviour of water-soluble permeants with hydrated radii in the sub-nanometer range is analogous to that of conventional hydrogel polymers.
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Affiliation(s)
- Aisling Mann
- Biomaterials Research Unit, Chemical Engineering and Applied Chemistry, College of Engineering and Physical Sciences, Aston University, Birmingham, B4 7ET, United Kingdom
| | - Fiona Lydon
- Biomaterials Research Unit, Chemical Engineering and Applied Chemistry, College of Engineering and Physical Sciences, Aston University, Birmingham, B4 7ET, United Kingdom
| | - Brian J Tighe
- Biomaterials Research Unit, Chemical Engineering and Applied Chemistry, College of Engineering and Physical Sciences, Aston University, Birmingham, B4 7ET, United Kingdom
| | - Shuko Suzuki
- Queensland Eye Institute, South Brisbane, Queensland 4101, Australia
| | - Traian V Chirila
- Queensland Eye Institute, South Brisbane, Queensland 4101, Australia.,Science & Engineering Faculty, Queensland University of Technology, Brisbane, Queensland 4001, Australia.,Faculty of Medicine, University of Queensland, Herston, Queensland 4029, Australia.,Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St Lucia, Queensland 4072, Australia.,Faculty of Science, University of Western Australia, Crawley, Western Australia 6009, Australia
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Sta. Agueda JRH, Chen Q, Maalihan RD, Ren J, da Silva ÍGM, Dugos NP, Caldona EB, Advincula RC. 3D printing of biomedically relevant polymer materials and biocompatibility. MRS COMMUNICATIONS 2021; 11:197-212. [PMID: 33936866 PMCID: PMC8075026 DOI: 10.1557/s43579-021-00038-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 04/08/2021] [Indexed: 05/06/2023]
Abstract
ABSTRACT Research on polymer materials for additive manufacturing technology in biomedical applications is as promising as it is numerous, but biocompatibility of printable materials still remains a big challenge. Changes occurring during the 3D-printing processes itself may have adverse effects on the compatibility of the completed print. This prospective will put emphasis on the different additives and processes that can have a direct impact on biocompatibility during and after 3D printing of polymer materials.
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Affiliation(s)
- Joseph Rey H. Sta. Agueda
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106 USA
- Department of Manufacturing Engineering and Management, De La Salle University, 1004 Manila, Philippines
- Department of Chemical Engineering, De La Salle University, 1004 Manila, Philippines
| | - Qiyi Chen
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106 USA
- Center for Nanophase Materials and Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37830 USA
| | - Reymark D. Maalihan
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106 USA
- Department of Chemical and Food Engineering and Material Testing and Calibration Center, Batangas State University, 4200 Batangas City, Philippines
| | - Jingbo Ren
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106 USA
| | - Ítalo G. M. da Silva
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106 USA
- Escola de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-909 Brazil
| | - Nathaniel P. Dugos
- Department of Chemical Engineering, De La Salle University, 1004 Manila, Philippines
| | - Eugene B. Caldona
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106 USA
- Department of Chemical and Biomolecular Engineering and Joint Institute for Advanced Materials, University of Tennessee, Knoxville, TN 37996 USA
| | - Rigoberto C. Advincula
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106 USA
- Department of Chemical and Biomolecular Engineering and Joint Institute for Advanced Materials, University of Tennessee, Knoxville, TN 37996 USA
- Center for Nanophase Materials and Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37830 USA
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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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Rim MA, Choi JH, Park A, Youn J, Lee S, Kim NE, Song JE, Khang G. Characterization of Gelatin/Gellan Gum/Glycol Chitosan Ternary Hydrogel for Retinal Pigment Epithelial Tissue Reconstruction Materials. ACS APPLIED BIO MATERIALS 2020; 3:6079-6087. [PMID: 35021836 DOI: 10.1021/acsabm.0c00672] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The cellular transplantation approach to treat damaged or diseased retina is limited because of poor survival, distribution, and integration of cells after implantation to the sub-retinal space. To overcome this, it is important to develop a cell delivery system. In this study, a ternary hydrogel of gelatin (Ge)/gellan gum (GG)/glycol chitosan (CS) is suggested as a cell carrier for retinal tissue engineering (TE). Physicochemical properties such as porosity, swelling, sol fraction, and weight loss were measured. The mechanical study was performed with compressive strength and viscosity to confirm applicability in retinal TE. An in vitro experiment was carried out by encapsulating ARPE-19 in the designed hydrogel to measure viability and expression of retinal pigment epithelium-specific proteins and genes. The results showed that the ternary hydrogel system improves the mechanical properties and stability of the composite. Cell growth, survival, adhesion, and migration were enhanced as the CS was incorporated into the matrix. In particular, real-time polymerase chain reaction analysis showed a markedly improved specific gene expression rate in the Ge/GG/CS. Therefore, it is expected that the ternary system suggested in this study can be used as a promising material for retinal TE.
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Affiliation(s)
- Min A Rim
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Joo Hee Choi
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Ain Park
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Jina Youn
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Sumi Lee
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Na Eun Kim
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Jeong Eun Song
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Gilson Khang
- Department of BIN Convergence Technology, Department of Polymer Nano Science & Technology and Polymer BIN Research Center, Jeonbuk National University, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
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Tullii G, Donini S, Bossio C, Lodola F, Pasini M, Parisini E, Galeotti F, Antognazza MR. Micro- and Nanopatterned Silk Substrates for Antifouling Applications. ACS APPLIED MATERIALS & INTERFACES 2020; 12:5437-5446. [PMID: 31917532 DOI: 10.1021/acsami.9b18187] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A major problem of current biomedical implants is the bacterial colonization and subsequent biofilm formation, which seriously affects their functioning and can lead to serious post-surgical complications. Intensive efforts have been directed toward the development of novel technologies that can prevent bacterial colonization while requiring minimal antibiotics doses. To this end, biocompatible materials with intrinsic antifouling capabilities are in high demand. Silk fibroin, widely employed in biotechnology, represents an interesting candidate. Here, we employ a soft-lithography approach to realize micro- and nanostructured silk fibroin substrates, with different geometries. We show that patterned silk film substrates support mammal cells (HEK-293) adhesion and proliferation, and at the same time, they intrinsically display remarkable antifouling properties. We employ Escherichia coli as representative Gram-negative bacteria, and we observe an up to 66% decrease in the number of bacteria that adhere to patterned silk surfaces as compared to control, flat silk samples. The mechanism leading to the inhibition of biofilm formation critically depends on the microstructure geometry, involving both a steric and a hydrophobic effect. We also couple silk fibroin patterned films to a biocompatible, optically responsive organic semiconductor, and we verify that the antifouling properties are very well preserved. The technology described here is of interest for the next generation of biomedical implants, involving the use of materials with enhanced antibacterial capability, easy processability, high biocompatibility, and prompt availability for coupling with photoimaging and photodetection techniques.
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Affiliation(s)
- G Tullii
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia , via Pascoli 70/3 , 20133 , Milano , Italy
- Department of Physics , Politecnico di Milano , Piazza L. Da Vinci 32 , 20133 , Milano , Italy
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Consiglio Nazionale delle Ricerche (SCITEC-CNR) , Via Alfonso Corti 12 , 20133 , Milano , Italy
| | - S Donini
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia , via Pascoli 70/3 , 20133 , Milano , Italy
| | - C Bossio
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia , via Pascoli 70/3 , 20133 , Milano , Italy
| | - F Lodola
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia , via Pascoli 70/3 , 20133 , Milano , Italy
| | - M Pasini
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Consiglio Nazionale delle Ricerche (SCITEC-CNR) , Via Alfonso Corti 12 , 20133 , Milano , Italy
| | - E Parisini
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia , via Pascoli 70/3 , 20133 , Milano , Italy
| | - F Galeotti
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Consiglio Nazionale delle Ricerche (SCITEC-CNR) , Via Alfonso Corti 12 , 20133 , Milano , Italy
| | - M R Antognazza
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia , via Pascoli 70/3 , 20133 , Milano , Italy
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