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Song E, Kwon JW, Park CY, Kang JT, Park K. Alginate Hydrogel Integrated with a Human Fibroblast-Derived Extracellular Matrix Supports Corneal Endothelial Cell Functionality and Suppresses Endothelial-Mesenchymal Transition. ACS Biomater Sci Eng 2024; 10:3855-3867. [PMID: 38780042 DOI: 10.1021/acsbiomaterials.4c00040] [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: 05/25/2024]
Abstract
Human corneal transplantation is still the only option to restore the function of corneal endothelial cells (CECs). Therefore, there is an urgent need for hCEC delivery systems to replace the human donor cornea. Here, we propose an alginate hydrogel (AH)-based delivery system, where a human fibroblast-derived, decellularized extracellular matrix (ECM) was physically integrated with AH. This AH securely combined with the ECM (ECM-AH) was approximately 50 μm thick, transparent, and permeable. The surface roughness and surface potential provided ECM-AH with a favorable microenvironment for CEC adhesion and growth in vitro. More importantly, ECM-AH could support the structural (ZO-1) and functional (Na+/K+-ATPase) markers of hCECs, as assessed via western blotting and quantitative polymerase chain reaction, which were comparable with those of a ferritic nitrocarburizing (FNC)-coated substrate (a positive control). The cell density per unit area was also significantly better with ECM-AH than the FNC substrate at day 7. A simulation test of cell engraftment in vitro showed that hCECs were successfully transferred into the decellularized porcine corneal tissue, where they were mostly alive. Furthermore, we found out that the endothelial-mesenchymal transition (EnMT)-inductive factors (Smad2 and vimentin) were largely declined with the hCECs grown on ECM-AH, whereas the EnMT inhibitory factor (Smad7) was significantly elevated. The difference was statistically significant compared to that of the FNC substrate. Moreover, we also observed that TGF-β1-treated hCECs showed faster recovery of cell phenotype on the ECM. Taken together, our study demonstrates that ECM-AH is a very promising material for hCEC culture and delivery, which endows an excellent microenvironment for cell function and phenotype maintenance.
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Affiliation(s)
- Euisun Song
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Seoul 02792, Republic of Korea
| | - Jae Won Kwon
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Seoul 02792, Republic of Korea
| | - Choul Yong Park
- Department of Ophthalmology, Dongguk University Ilsan Hospital, Goyang 10326, Republic of Korea
| | - Jung-Taek Kang
- Biotechnology Research Institute, Mgenplus Co., Ltd, Seoul 06688, Republic of Korea
| | - Kwideok Park
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Seoul 02792, Republic of Korea
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2
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M Y T, Tellakula SS, Suryavanshi SV, G S K, Vasudev S C, Ranganath SH. Fusogenic liposome-coated nanoparticles for rapid internalization into donor corneal endothelial tissue to enable prophylaxis before transplantation. NANOSCALE ADVANCES 2023; 5:6410-6422. [PMID: 38024318 PMCID: PMC10662038 DOI: 10.1039/d3na00535f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023]
Abstract
Cold stress (hypothermia) during storage and cytokine stress due to acute allograft rejection adversely affect the donor corneal endothelium in the short term. Pharmacological pre-treatment (before transplantation) of the donor corneal endothelium or cells (propagated in vitro for cell injection therapy) with microtubule stabilizers, cold stress protectants, and other molecules is an attractive strategy to tackle damage caused by hypothermia and cytokine stress. These molecules can be delivered intracellularly to the donor corneal endothelium or cells at controlled rates for desired periods and with one-time administration using nanoparticles. However, the death-to-preservation time of donor corneas of more than 4 to 6 h significantly decreases endothelial cell density and increases the risk of microbial contamination. Therefore, we have developed fusogenic liposome-coated nanoparticles for rapid internalization of nanoparticles into cultured corneal endothelial cells and ex vivo corneal endothelial tissue. Here, we have shown that the fusogenic liposome-coated nanoparticles have the intrinsic ability to efficiently and rapidly internalize into cultured corneal endothelial cells and ex vivo corneal tissue within 3 h by possibly fusing with the cell membrane and bypassing the endocytic pathway. Lactate dehydrogenase assay showed that the internalized fusogenic liposome-coated nanoparticles did not cause cytotoxicity in endothelial cells associated with the ex vivo cornea for at least up to 2 days. Thus, fusogenic liposome-coated nanoparticles have great potential as a platform for engineering cells and endothelial tissue of donor corneas to facilitate prophylactic drug delivery during storage and after transplantation.
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Affiliation(s)
- Thanuja M Y
- Bio-INvENT Lab, Department of Chemical Engineering, Siddaganga Institute of Technology B. H. Road Tumakuru 572103 India +91 816 2214038
| | - Suraksha S Tellakula
- Bio-INvENT Lab, Department of Chemical Engineering, Siddaganga Institute of Technology B. H. Road Tumakuru 572103 India +91 816 2214038
| | - Samarth V Suryavanshi
- Bio-INvENT Lab, Department of Chemical Engineering, Siddaganga Institute of Technology B. H. Road Tumakuru 572103 India +91 816 2214038
| | - Keerthana G S
- Bio-INvENT Lab, Department of Chemical Engineering, Siddaganga Institute of Technology B. H. Road Tumakuru 572103 India +91 816 2214038
| | - Chandan Vasudev S
- Bio-INvENT Lab, Department of Chemical Engineering, Siddaganga Institute of Technology B. H. Road Tumakuru 572103 India +91 816 2214038
| | - Sudhir H Ranganath
- Bio-INvENT Lab, Department of Chemical Engineering, Siddaganga Institute of Technology B. H. Road Tumakuru 572103 India +91 816 2214038
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Bandeira F, Grottone GT, Covre JL, Cristovam PC, Loureiro RR, Pinheiro FI, Casaroli-Marano RP, Donato W, Gomes JÁP. A Framework for Human Corneal Endothelial Cell Culture and Preliminary Wound Model Experiments with a New Cell Tracking Approach. Int J Mol Sci 2023; 24:ijms24032982. [PMID: 36769303 PMCID: PMC9917640 DOI: 10.3390/ijms24032982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/21/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
Cell injection therapy is emerging as an alternative to treat corneal endothelial dysfunction (CED) and to avoid corneal scarring due to bullous keratopathy. However, establishing a standardized culture procedure that provides appropriate cell yield while retaining functional features remains a challenge. Here, we describe a detailed framework obtained from in vitro culture of human corneal endothelial cells (HCECs) and comparative in vivo experimental models for CED treatment with a new cell tracking approach. Two digestion methods were compared regarding HCEC morphology and adhesion. The effect of Y-27632 (ROCKi) supplementation on final cell yield was also assessed. Cell adhesion efficacy with two cell delivery systems (superparamagnetic embedding and cell suspension) was evaluated in an ex vivo human cornea model and in an in vivo rabbit CED model. The injection of supplemented culture medium or balanced salt solution (BSS) was used for the positive and negative controls, respectively. HCEC isolation with collagenase resulted in better morphology and adhesion of cultured HCEC when compared to EDTA. Y-27632 supplementation resulted in a 2.6-fold increase in final cell yield compared to the control. Ex vivo and in vivo adhesion with both cell delivery systems was confirmed by cell tracker fluorescence detection. Corneal edema and opacity improved in both animal groups treated with cultured HCEC. The corneas in the control groups remained opaque. Both HCEC delivery systems seemed comparable as treatments for CED and for the prevention of corneal scarring.
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Affiliation(s)
- Francisco Bandeira
- Department of Ophthalmology, Federal University of São Paulo, São Paulo 04023-062, Brazil
- Medicine School, Barcelona University, 08007 Barcelona, Spain
- Correspondence: ; Tel.: +55-2197-2355-742
| | | | - Joyce Luciana Covre
- Department of Ophthalmology, Federal University of São Paulo, São Paulo 04023-062, Brazil
| | | | - Renata Ruoco Loureiro
- Department of Ophthalmology, Federal University of São Paulo, São Paulo 04023-062, Brazil
| | - Francisco Irochima Pinheiro
- Biotechnology Post-Graduate Program, Potiguar University, Natal 59082-902, Brazil
- Department of Surgery, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | | | - Waleska Donato
- Department of Ophthalmology, Federal University of São Paulo, São Paulo 04023-062, Brazil
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Abstract
Corneal endothelial cells (CECs) facilitate the function of maintaining the transparency of the cornea. Damage or dysfunction of CECs can lead to blindness, and the primary treatment is corneal transplantation. However, the shortage of cornea donors is a significant problem worldwide. Thus, cultured CEC therapy has been proposed and found to be a promising approach to overcome the lack of tissue supply. Unfortunately, CECs in humans rarely proliferate in vivo and, therefore, can be extremely challenging to culture in vitro. Several promising cell isolation and culture techniques have been proposed. Multiple factors affecting the success of cell expansion including donor characteristics, preservation and isolation methods, plating density, media preparation, transdifferentiation and biomarkers have been evaluated. However, there is no consensus on standard technique for CEC culture. This review aimed to determine the challenges and investigate potential options that would facilitate the standardization of CEC culture for research and therapeutic application.
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Affiliation(s)
- Rintra Wongvisavavit
- Institute of Ophthalmology, University College London, London, UK.,Faculty of Medicine & Public Health, Chulabhorn Royal Academy, Bangkok, Thailand
| | - Mohit Parekh
- Institute of Ophthalmology, University College London, London, UK
| | - Sajjad Ahmad
- Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Julie T Daniels
- Institute of Ophthalmology, University College London, London, UK
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Ting DSJ, Peh GSL, Adnan K, Mehta JS. Translational and Regulatory Challenges of Corneal Endothelial Cell Therapy: A Global Perspective. TISSUE ENGINEERING PART B-REVIEWS 2021; 28:52-62. [PMID: 33267724 DOI: 10.1089/ten.teb.2020.0319] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cell therapies are emerging as a unique class of clinical therapeutics in medicine. In 2015, Holoclar (ex vivo expanded autologous human corneal epithelial cells containing stem cells) gained the regulatory approval for treating limbal stem cell deficiency after chemical eye burn. This has set a precedent in ophthalmology and in medicine, reinforcing the therapeutic promise of cell therapy. However, to generalize and commercialize cell therapies on a global scale, stringent translational and regulatory requirements need to be fulfilled at both local and international levels. Over the past decade, the Singapore group has taken significant steps in developing human corneal endothelial cell (HCEnC) therapy for treating corneal endothelial diseases, which are currently the leading indication for corneal transplantation in many countries. Successful development of HCEnC therapy may serve as a novel solution to the current global shortage of donor corneas. Based on the experience in Singapore, this review aims to provide a global perspective on the translational and regulatory challenges for bench-to-bedside translation of cell therapy. Specifically, we discussed about the characterization of the critical quality attributes (CQA), the challenges that can affect the CQA, and the variations in the regulatory framework embedded within different regions, including Singapore, Europe, and the United States. Impact statement Functional corneal endothelium is critical to normal vision. Corneal endothelial disease-secondary to trauma, surgery, or pathology-represents an important cause of visual impairment and blindness in both developed and developing countries. Currently, corneal transplantation serves as the current gold standard for treating visually significant corneal endothelial diseases, although limited by the shortage of donor corneas. Over the past decade, human corneal endothelial cell therapy has emerged as a promising treatment option for treating corneal endothelial diseases. To allow widespread application of this therapy, significant regulatory challenges will need to be systematically overcome.
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Affiliation(s)
- Darren Shu Jeng Ting
- Academic Ophthalmology, Division of Clinical Neuroscience, School of Medicine, University of Nottingham, Nottingham, United Kingdom.,Department of Ophthalmology, Queen's Medical Centre, Nottingham, United Kingdom.,Singapore Eye Research Institute, Singapore, Singapore
| | - Gary S L Peh
- Singapore Eye Research Institute, Singapore, Singapore.,Duke-NUS Graduate Medical School, Singapore, Singapore
| | | | - Jodhbir S Mehta
- Singapore Eye Research Institute, Singapore, Singapore.,Duke-NUS Graduate Medical School, Singapore, Singapore.,Schools of Material Science and Engineering, Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, Singapore
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6
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Regenerative capacity of the corneal transition zone for endothelial cell therapy. Stem Cell Res Ther 2020; 11:523. [PMID: 33276809 PMCID: PMC7716425 DOI: 10.1186/s13287-020-02046-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 11/23/2020] [Indexed: 12/13/2022] Open
Abstract
The corneal endothelium located on the posterior corneal surface is responsible for regulating stromal hydration. This is contributed by a monolayer of corneal endothelial cells (CECs), which are metabolically active in a continuous fluid-coupled efflux of ions from the corneal stroma into the aqueous humor, preventing stromal over-hydration and preserving the orderly arrangement of stromal collagen fibrils, which is essential for corneal transparency. Mature CECs do not have regenerative capacity and cell loss due to aging and diseases results in irreversible stromal edema and a loss of corneal clarity. The current gold standard of treatment for this worldwide blindness caused by corneal endothelial failure is the corneal transplantation using cadaveric donor corneas. The top indication is Fuchs corneal endothelial dystrophy/degeneration, which represents 39% of all corneal transplants performed. However, the global shortage of transplantable donor corneas has restricted the treatment outcomes, hence instigating a need to research for alternative therapies. One such avenue is the CEC regeneration from endothelial progenitors, which have been identified in the peripheral endothelium and the adjacent transition zone. This review examines the evidence supporting the existence of endothelial progenitors in the posterior limbus and summarizes the existing knowledge on the microanatomy of the transitional zone. We give an overview of the isolation and ex vivo propagation of human endothelial progenitors in the transition zone, and their growth and differentiation capacity to the corneal endothelium. Transplanting these bioengineered constructs into in vivo models of corneal endothelial degeneration will prove the efficacy and viability, and the long-term maintenance of functional endothelium. This will develop a novel regenerative therapy for the management of corneal endothelial diseases.
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7
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White IA, Sabater AL. Current strategies for human corneal endothelial regeneration. Regen Med 2019; 14:257-261. [PMID: 31070511 DOI: 10.2217/rme-2018-0105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Ian A White
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Alfonso L Sabater
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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Chen S, Zhu Q, Sun H, Zhang Y, Tighe S, Xu L, Zhu Y. Advances in culture, expansion and mechanistic studies of corneal endothelial cells: a systematic review. J Biomed Sci 2019; 26:2. [PMID: 30609919 PMCID: PMC6320592 DOI: 10.1186/s12929-018-0492-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 11/28/2018] [Indexed: 12/13/2022] Open
Abstract
Human corneal endothelial cells are notorious for their restricted proliferative ability in vivo and in vitro. Hence, injury or dysfunction of these cells may easily result in blindness. Currently, the only treatment is to transplant a donor cornea that contains a healthy corneal endothelium. However there is a severe global shortage of donor corneas and there remains an unmet clinical need to engineer human corneal grafts with healthy corneal endothelium. In this review, we present current advances in the culture, expansion, and molecular understandings of corneal endothelial cells in vitro in order to help establish methods of engineering human corneal endothelial grafts.
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Affiliation(s)
- Shuangling Chen
- Tissue Tech, Inc., 7235 Corporate Center Drive, Suite B, Miami, Florida, 33126, USA
| | - Qin Zhu
- Department of Ophthalmology, Fourth Affiliated Hospital of Kunming Medical University (the Second People's Hospital of Yunnan Province), Key Laboratory of Yunnan Province for the Prevention and Treatment of Ophthalmology, Provincial Innovation Team for Cataract and Ocular Fundus Disease, The Second People's Hospital of Yunnan Province, Expert Workstation of Yao Ke, Yunnan Eye Institute, Kunming, 650021, China
| | - Hong Sun
- Department of Ophthalmology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Yuan Zhang
- Tissue Tech, Inc., 7235 Corporate Center Drive, Suite B, Miami, Florida, 33126, USA
| | - Sean Tighe
- Tissue Tech, Inc., 7235 Corporate Center Drive, Suite B, Miami, Florida, 33126, USA
| | - Li Xu
- The Department of Ophthalmology, The Affiliated Hospital of Inner Mongolia Medical University, Tongdao North Rd, Hohhot, Inner Mongolia, China
| | - Yingting Zhu
- Tissue Tech, Inc., 7235 Corporate Center Drive, Suite B, Miami, Florida, 33126, USA.
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9
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Zhu Q, Sun H, Yang D, Tighe S, Liu Y, Zhu Y, Hu M. Cellular Substrates for Cell-Based Tissue Engineering of Human Corneal Endothelial Cells. Int J Med Sci 2019; 16:1072-1077. [PMID: 31523168 PMCID: PMC6743271 DOI: 10.7150/ijms.34440] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 05/21/2019] [Indexed: 12/15/2022] Open
Abstract
Corneal endothelial tissue engineering aims to find solutions for blindness due to endothelial dysfunction. A suitable combination of endothelial cells, substrates and environmental cues should be deployed for engineering functional endothelial tissues. This manuscript reviews up-to-date topics of corneal endothelial tissue engineering with special emphasis on biomaterial substrates and their properties, efficacy, and mechanisms of supporting functional endothelial cells in vitro.
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Affiliation(s)
- Qin Zhu
- Department of Ophthalmology, The Second People's Hospital of Yunnan Province (Fourth Affiliated Hospital of Kunming Medical University); Yunnan Eye Institute; Key Laboratory of Yunnan Province for the Prevention and Treatment of ophthalmology (2017DG008); Provincial Innovation Team for Cataract and Ocular Fundus Disease (2017HC010); Expert Workstation of Yao Ke (2017IC064), Kunming 650021, China
| | - Hong Sun
- Department of Ophthalmology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Dongmei Yang
- Department of Ophthalmology, The Second People's Hospital of Yunnan Province (Fourth Affiliated Hospital of Kunming Medical University); Yunnan Eye Institute; Key Laboratory of Yunnan Province for the Prevention and Treatment of ophthalmology (2017DG008); Provincial Innovation Team for Cataract and Ocular Fundus Disease (2017HC010); Expert Workstation of Yao Ke (2017IC064), Kunming 650021, China
| | - Sean Tighe
- Tissue Tech, Inc., Ocular Surface Center, and Ocular Surface Research & Education Foundation, Miami, FL, 33173 USA
| | - Yongsong Liu
- Department of Ophthalmology, Yan' An Hospital of Kunming City, Kunming, 650051, China
| | - Yingting Zhu
- Tissue Tech, Inc., Ocular Surface Center, and Ocular Surface Research & Education Foundation, Miami, FL, 33173 USA
| | - Min Hu
- Department of Ophthalmology, The Second People's Hospital of Yunnan Province (Fourth Affiliated Hospital of Kunming Medical University); Yunnan Eye Institute; Key Laboratory of Yunnan Province for the Prevention and Treatment of ophthalmology (2017DG008); Provincial Innovation Team for Cataract and Ocular Fundus Disease (2017HC010); Expert Workstation of Yao Ke (2017IC064), Kunming 650021, China
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10
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Zhu Q, Zhang Y, Tighe S, Liu Y, Zhu Y, Hu M. Human Trabecular Meshwork Progenitors. Int J Med Sci 2019; 16:704-710. [PMID: 31217738 PMCID: PMC6566744 DOI: 10.7150/ijms.32089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 03/04/2019] [Indexed: 12/25/2022] Open
Abstract
Trabecular meshwork (TM) cells are a group of progenitors that have the ability to become adipocytes, chondrocytes and endothelial cells. Therefore, those adult corneal progenitors may be used as an effective therapy for trabecular meshwork diseases such as glaucoma, corneal endothelial dysfunctions such as blindness due to corneal endothelial dysfunction, and similar diseases. In order to promote the understanding of human trabecular meshwork progenitors, this article reviews human trabecular meshwork progenitor therapy and discusses its potential applications for curing human eye blindness.
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Affiliation(s)
- Qin Zhu
- Department of Ophthalmology, Fourth Affiliated Hospital of Kunming Medical University (the Second People's Hospital of Yunnan Province); Yunnan Eye Institute; Key Laboratory of Yunnan Province for the Prevention and Treatment of ophthalmology (2017DG008); Provincial Innovation Team for Cataract and Ocular Fundus Disease, The Second People's Hospital of Yunnan Province (2017HC010); Expert Workstation of Yao Ke (2017IC064), Kunming 650021, China
| | - Yuan Zhang
- Tissue Tech, Inc., Ocular Surface Center, and Ocular Surface Research & Education Foundation, Miami, FL, 33173 USA
| | - Sean Tighe
- Tissue Tech, Inc., Ocular Surface Center, and Ocular Surface Research & Education Foundation, Miami, FL, 33173 USA
| | - Yongsong Liu
- Department of Ophthalmology, Yan' An Hospital of Kunming City, Kunming, 650051, China
| | - Yingting Zhu
- Tissue Tech, Inc., Ocular Surface Center, and Ocular Surface Research & Education Foundation, Miami, FL, 33173 USA
| | - Min Hu
- Department of Ophthalmology, Fourth Affiliated Hospital of Kunming Medical University (the Second People's Hospital of Yunnan Province); Yunnan Eye Institute; Key Laboratory of Yunnan Province for the Prevention and Treatment of ophthalmology (2017DG008); Provincial Innovation Team for Cataract and Ocular Fundus Disease, The Second People's Hospital of Yunnan Province (2017HC010); Expert Workstation of Yao Ke (2017IC064), Kunming 650021, China
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11
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Nagymihály R, Veréb Z, Albert R, Sidney L, Dua H, Hopkinson A, Petrovski G. Cultivation and characterisation of the surface markers and carbohydrate profile of human corneal endothelial cells. Clin Exp Ophthalmol 2017; 45:509-519. [PMID: 28032398 DOI: 10.1111/ceo.12903] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 11/16/2016] [Accepted: 12/08/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND The study aims to characterise human corneal endothelial cell (HCEnC) cultures generated by the peel-and-digest method based on their surface protein/carbohydrate expression pattern. METHODS Quantitative polymerase chain reaction was used to compare expression of vimentin, CD90, Cytokeratin-19, ZO-1 and Claudin 14 in cultured HCEnC and cell line B4G12 versus stromal cells. Fluorescence-activated cell sorting was used to assess surface protein distribution of cultured and uncultured HCEnC. Distribution of surface proteins/carbohydrates was visualised by immunofluorescent and lectin staining. RESULTS Human corneal endothelial cell and B4G12 showed lower expression level for vimentin, CD90, Cytokeratin-19 compared with stromal cells; while ZO-1 was expressed in endothelial cells, Claudin 14 was detected in B4G12 only. Fluorescence-activated cell sorting analyses revealed CD166, CD47, CD44, CD54, CD73, CD90, CD105, CD106, CD112, CD146 and CD325 to be present, with CD34 to be absent from cultured HCEnC. Freshly isolated, non-cultivated HCEnCs were CD90, CD73, CD146 and CD325 positive. Carbohydrates were detected by lectins LCA, PHA E, PHA L, PSA, sWGA, Con A, RCA 120 and WGA, but cultured HCEnC showed negative for GSL I, SBA, DBA, PNA and UEA I. CONCLUSION Cultures established by the peel-and-digest method are probably not prone to stromal contamination, but the cells are likely to undergo endothelial-to mesenchymal transition as suggested by apparent morphological changes.
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Affiliation(s)
- Richárd Nagymihály
- Stem Cells and Eye Research Laboratory, Department of Ophthalmology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Zoltán Veréb
- Stem Cells and Eye Research Laboratory, Department of Ophthalmology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Réka Albert
- Stem Cells and Eye Research Laboratory, Department of Ophthalmology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Laura Sidney
- Academic Department of Ophthalmology, Division of Clinical Neuroscience, University of Nottingham, Nottingham, UK
| | - Harminder Dua
- Academic Department of Ophthalmology, Division of Clinical Neuroscience, University of Nottingham, Nottingham, UK
| | - Andrew Hopkinson
- Academic Department of Ophthalmology, Division of Clinical Neuroscience, University of Nottingham, Nottingham, UK
| | - Goran Petrovski
- Stem Cells and Eye Research Laboratory, Department of Ophthalmology, Faculty of Medicine, University of Szeged, Szeged, Hungary.,Center for Eye Research, Department of Ophthalmology, Oslo University Hospital and University of Oslo, Oslo, Norway
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12
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Liu Y, Sun H, Hu M, Zhu M, Tighe S, Chen S, Zhang Y, Su C, Cai S, Guo P. Human Corneal Endothelial Cells Expanded In Vitro Are a Powerful Resource for Tissue Engineering. Int J Med Sci 2017; 14:128-135. [PMID: 28260988 PMCID: PMC5332841 DOI: 10.7150/ijms.17624] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Accepted: 12/28/2016] [Indexed: 12/13/2022] Open
Abstract
Human corneal endothelial cells have two major functions: barrier function mediated by proteins such as ZO-1 and pump function mediated by Na-K-ATPase which help to maintain visual function. However, human corneal endothelial cells are notorious for their limited proliferative capability in vivo and are therefore prone to corneal endothelial dysfunction that eventually may lead to blindness. At present, the only method to cure corneal endothelial dysfunction is by transplantation of a cadaver donor cornea with normal corneal endothelial cells. Due to the global shortage of donor corneas, it is vital to engineer corneal tissue in vitro that could potentially be transplanted clinically. In this review, we summarize the advances in understanding the behavior of human corneal endothelial cells, their current engineering strategy in vitro and their potential applications.
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Affiliation(s)
- Yongsong Liu
- Department of Ophthalmology, Yan' An Hospital of Kunming City, Kunming, 650051, China
| | - Hong Sun
- Department of Ophthalmology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Min Hu
- Department of Ophthalmology, the Second People's Hospital of Yunnan Province, Kunming, 650021, China
| | - Min Zhu
- Public Health, the University of Arizona, Tucson, Arizona, 85709, USA
| | - Sean Tighe
- Research and Development Department, TissueTech, Inc., 7000 SW 97th Avenue, Suite 212, Miami, FL 33173, USA
| | - Shuangling Chen
- Research and Development Department, TissueTech, Inc., 7000 SW 97th Avenue, Suite 212, Miami, FL 33173, USA
| | - Yuan Zhang
- Research and Development Department, TissueTech, Inc., 7000 SW 97th Avenue, Suite 212, Miami, FL 33173, USA
| | - Chenwei Su
- Research and Development Department, TissueTech, Inc., 7000 SW 97th Avenue, Suite 212, Miami, FL 33173, USA
| | - Subo Cai
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Ping Guo
- Shenzhen Eye Hospital, School of Optometry & Ophthalmology of Shenzhen University, Shenzhen Key Laboratory of Department of Ophthalmology, Shenzhen, 518000, China
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13
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Abstract
Fuchs endothelial dystrophy is a severe disease characterized by slowly progressing bilateral asymmetric corneal edema usually seen in elderly patients. The primary purpose of treatment is to minimize edema-related symptoms, such as ocular discomfort and visual acuity loss. Conservative therapy is symptomatic and has a short-term positive effect that does not lead to full functional rehabilitation of the patient, while endothelial keratoplasty is pathogenetically oriented. Intentional replacement of pathologically altered corneal layers has several advantages: preservation of corneal architectonics, rapid recovery of visual function, 'closed eye' surgery with corneal tunnel approach, and independence from expensive equipment. However, principle indications and contraindications for various modifications of endothelial keratoplasty in the presence of comorbidity are still to be defined. Further improvement of the methods and their broader implementation into clinical practice are the most pressing and promising issues of corneal transplantation.
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Affiliation(s)
- S V Trufanov
- Research Institute of Eye Diseases, 11 A, B, Rossolimo St., Moscow, Russian Federation, 119021
| | - E P Salovarova
- Research Institute of Eye Diseases, 11 A, B, Rossolimo St., Moscow, Russian Federation, 119021
| | - S A Malozhen
- Research Institute of Eye Diseases, 11 A, B, Rossolimo St., Moscow, Russian Federation, 119021
| | - R Z Bagh
- Research Institute of Eye Diseases, 11 A, B, Rossolimo St., Moscow, Russian Federation, 119021
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14
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Liu Y, Sun H, Guo P, Hu M, Zhang Y, Tighe S, Chen S, Zhu Y. Characterization and Prospective of Human Corneal Endothelial Progenitors. Int J Med Sci 2017; 14:705-710. [PMID: 28824304 PMCID: PMC5562123 DOI: 10.7150/ijms.19018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 04/21/2017] [Indexed: 12/15/2022] Open
Abstract
Corneal endothelial cells play a critical role in maintaining corneal transparency and dysfunction of these cells caused by aging, diseases (such as Fuch's dystrophy), injury or surgical trauma, which can lead to corneal edema and blindness. Due to their limited proliferative capacity in vivo, the only treatment method is via transplantation of a cadaver donor cornea. However, there is a severe global shortage of donor corneas. To circumvent such issues, tissue engineering of corneal tissue is a viable option thanks to the recent discoveries in this field. In this review, we summarize the recent advances in reprogramming adult human corneal endothelial cells into their progenitor status, the expansion methods and characteristics of human corneal endothelial progenitors, and their potential clinical applications as corneal endothelial cell grafts.
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Affiliation(s)
- Yongsong Liu
- Department of Ophthalmology, Yan' An Hospital of Kunming City, Kunming, 650051, China
| | - Hong Sun
- Department of Ophthalmology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Ping Guo
- Shenzhen Eye Hospital, School of Optometry & Ophthalmology of Shenzhen University, Shenzhen Key Laboratory of Department of Ophthalmology, Shenzhen, 518000, China
| | - Min Hu
- Department of Ophthalmology, the Second People's Hospital of Yunnan Province, Kunming, 650021, China
| | - Yuan Zhang
- Research and Development Department, TissueTech, Inc., 7000 SW 97th Avenue, Suite 212, Miami, FL 33173, USA
| | - Sean Tighe
- Research and Development Department, TissueTech, Inc., 7000 SW 97th Avenue, Suite 212, Miami, FL 33173, USA
| | - Shuangling Chen
- Research and Development Department, TissueTech, Inc., 7000 SW 97th Avenue, Suite 212, Miami, FL 33173, USA
| | - Yingting Zhu
- Research and Development Department, TissueTech, Inc., 7000 SW 97th Avenue, Suite 212, Miami, FL 33173, USA
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15
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Senescence Mediated by p16 INK4a Impedes Reprogramming of Human Corneal Endothelial Cells into Neural Crest Progenitors. Sci Rep 2016; 6:35166. [PMID: 27739458 PMCID: PMC5064359 DOI: 10.1038/srep35166] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 09/26/2016] [Indexed: 12/13/2022] Open
Abstract
Human corneal endothelial cells (HCECs) have limited proliferative capacity due to “contact-inhibition” at G1 phase. Such contact-inhibition can be delayed from Day 21 to Day 42 by switching EGF-containing SHEM to LIF/bFGF-containing MESCM through transient activation of LIF-JAK1-STAT3 signaling that delays eventual nuclear translocation of p16INK4a. Using the latter system, we have reported a novel tissue engineering technique by implementing 5 weekly knockdowns with p120 catenin (p120) and Kaiso siRNAs since Day 7 to achieve effective expansion of HCEC monolayers to a transplantable size with a normal HCEC density, through reprogramming of HCECs into neural crest progenitors by activating p120-Kaiso-RhoA-ROCK-canonical BMP signaling. Herein, we noted that a single knockdown with p120-Kaiso siRNAs at Day 42 failed to achieve such reprogramming when contact inhibition transitioned to senescence with nuclear translocation of p16INK4a. In contrast, 5 weekly knockdowns with p120-Kaiso siRNAs since Day 7 precluded senescence mediated by p16INK4a by inducing nuclear translocation of Bmi1 because of sustained activation of JAK2-STAT3 signaling downstream of p120-Kaiso-RhoA-ROCK signaling. STAT3 or Bmi1 siRNA impeded nuclear exclusion of p16INK4a and suppressed the reprogramming induced by p120-Kaiso siRNAs, suggesting that another important engineering strategy of HCEC lies in prevention of senescence mediated by nuclear translocation of p16INK4a.
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