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Herzog H, Glöckler S, Flamm J, Ladel S, Maigler F, Pitzer C, Schindowski K. Intranasal Nose-to-Brain Drug Delivery via the Olfactory Region in Mice: Two In-Depth Protocols for Region-Specific Intranasal Application of Antibodies and for Expression Analysis of Fc Receptors via In Situ Hybridization in the Nasal Mucosa. Methods Mol Biol 2024; 2754:387-410. [PMID: 38512678 DOI: 10.1007/978-1-0716-3629-9_21] [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: 03/23/2024]
Abstract
A region-specific catheter-based intranasal administration method was successfully developed, established, and validated as reported previously. By using this method, drugs can be applicated specifically to the olfactory region. Thereby, intranasally administered drugs could be delivered via neuronal connections to the central nervous system. Here, we present a detailed protocol with a step-by-step procedure for nose-to-brain delivery via the olfactory mucosa.Fc receptors such as the neonatal Fc receptor (FcRn) and potentially Fcγ receptor IIb (FcγRIIb) are involved in the uptake and transport of antibodies via the olfactory nasal mucosa. To better characterize their expression levels and their role in CNS drug delivery via the nose, an in situ hybridization (ISH) protocol was adapted for nasal mucosa samples and described in abundant details.
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Affiliation(s)
- Helena Herzog
- Institute of Applied Biotechnology, University of Applied Science Biberach, Biberach, Germany
- Faculty of Natural Science, University of Ulm, Ulm, Germany
| | - Sara Glöckler
- Institute of Applied Biotechnology, University of Applied Science Biberach, Biberach, Germany
- Faculty of Natural Science, University of Ulm, Ulm, Germany
| | - Johannes Flamm
- Institute of Applied Biotechnology, University of Applied Science Biberach, Biberach, Germany
- Faculty of Natural Science, University of Ulm, Ulm, Germany
| | - Simone Ladel
- Institute of Applied Biotechnology, University of Applied Science Biberach, Biberach, Germany
- Faculty of Natural Science, University of Ulm, Ulm, Germany
| | - Frank Maigler
- Institute of Applied Biotechnology, University of Applied Science Biberach, Biberach, Germany
- Faculty of Natural Science, University of Ulm, Ulm, Germany
| | - Claudia Pitzer
- Interdisciplinary Neurobehavioral Core, Heidelberg University, Heidelberg, Germany
| | - Katharina Schindowski
- Institute of Applied Biotechnology, University of Applied Science Biberach, Biberach, Germany.
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Makuloluwa AK, Hamill KJ, Rauz S, Bosworth L, Haneef A, Romano V, Williams RL, Dartt DA, Kaye SB. Biological tissues and components, and synthetic substrates for conjunctival cell transplantation. Ocul Surf 2021; 22:15-26. [PMID: 34119712 DOI: 10.1016/j.jtos.2021.06.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 05/05/2021] [Accepted: 06/02/2021] [Indexed: 12/16/2022]
Abstract
The conjunctiva is the largest component of the ocular surface. It can be damaged by various pathological processes leading to scarring, loss of tissue and dysfunction. Depending on the amount of damage, restoration of function may require a conjunctival graft. Numerous studies have investigated biological and synthetic substrates in the search for optimal conditions for the ex vivo culture of conjunctival epithelial cells that can be used as tissue grafts for transplantation. These substrates have advantages and disadvantages that are specific to the characteristics of each material; the development of an improved material remains a priority. This review is the second of a two-part review in The Ocular Surface. In the first review, the structure and function of the conjunctiva was evaluated with a focus on the extracellular matrix and the basement membrane, and biological and mechanical characteristics of the ideal substrate with recommendations for further studies. In this review the types of biological and synthetic substrates used for conjunctival transplantation are discussed including substrates based on the extracellular matrix. .
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Affiliation(s)
- Aruni K Makuloluwa
- Department of Eye and Vision Science, University of Liverpool, William Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Kevin J Hamill
- Department of Eye and Vision Science, University of Liverpool, William Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Saaeha Rauz
- Academic Unit of Ophthalmology, Institute of Inflammation and Ageing, University of Birmingham and Birmingham and Midland Eye Centre, Dudley Road, Birmingham, B18 7QU, UK
| | - Lucy Bosworth
- Department of Eye and Vision Science, University of Liverpool, William Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Atikah Haneef
- Department of Eye and Vision Science, University of Liverpool, William Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Vito Romano
- Department of Eye and Vision Science, University of Liverpool, William Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Rachel L Williams
- Department of Eye and Vision Science, University of Liverpool, William Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Darlene A Dartt
- Schepens Eye Research Institute, Mass Eye and Ear Infirmary, Department of Ophthalmology, Harvard Medical School, 20 Staniford St, Boston, MA, 02114, USA
| | - Stephen B Kaye
- Department of Eye and Vision Science, University of Liverpool, William Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK.
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Yan D, Yu F, Chen L, Yao Q, Yan C, Zhang S, Wu N, Gong D, Sun H, Fu Y, Shao C. Subconjunctival Injection of Regulatory T Cells Potentiates Corneal Healing Via Orchestrating Inflammation and Tissue Repair After Acute Alkali Burn. Invest Ophthalmol Vis Sci 2021; 61:22. [PMID: 33326018 PMCID: PMC7745601 DOI: 10.1167/iovs.61.14.22] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Purpose This study aimed to investigate the therapeutic effects and underlying mechanisms of locally delivered regulatory T cells (Tregs) on acute corneal wound healing after alkali burn. Methods After corneal alkali burn, the mice were injected subconjunctivally with regulatory T cells (Tregs) isolated from syngeneic mice. The wound healing process was monitored by clinical manifestation, flow cytometry, and enzyme-linked immunosorbent assay (ELISA). As amphiregulin (Areg) was significantly upregulated, its reparative function in injured corneas was suggested. The hypothesis was further verified via loss- and gain-of-function experiments by administrating the antibody of Areg (anti-Areg) and recombinant Areg (rmAreg). Results Subconjunctivally injected Tregs rapidly migrated to injured corneas. The mice treated with Tregs showed prominently reduced corneal opacity, alleviated edema, and faster re-epithelialization compared with the control group. Mechanistically, Treg treatment led to suppressed infiltration of inflammatory cells, along with improved proliferation and inhibited apoptosis of corneal epithelial cells. Tregs expressed upregulated functional markers, including Areg. Expectantly, the levels of Areg in corneas were dramatically higher in the Treg injection group, in line with better corneal restoration. Additional experiments showed that the administration of anti-Areg blunted the reparative effect of Tregs, while exogenous Areg enhanced it. Treg-treated corneas also exhibited less neovascularization and fibrosis at a later reconstruction stage of corneal repair. Conclusions The findings showed that the subconjunctival injection of Tregs effectively promoted corneal wound healing by inhibiting excessive inflammation and enhancing epithelial regeneration, with an indispensable reparative role of Areg. Subsequent complications of corneal vascularization and fibrosis were therefore reduced.
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Affiliation(s)
- Dan Yan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Fei Yu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Liangbo Chen
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Qinke Yao
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Chenxi Yan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Siyi Zhang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Nianxuan Wu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Danni Gong
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Hao Sun
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Yao Fu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Chunyi Shao
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
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Shetty R, Kumar NR, Subramani M, Krishna L, Murugeswari P, Matalia H, Khamar P, Dadachanji ZV, Mohan RR, Ghosh A, Das D. Safety and efficacy of combination of suberoylamilide hydroxyamic acid and mitomycin C in reducing pro-fibrotic changes in human corneal epithelial cells. Sci Rep 2021; 11:4392. [PMID: 33623133 PMCID: PMC7902619 DOI: 10.1038/s41598-021-83881-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 02/01/2021] [Indexed: 12/14/2022] Open
Abstract
Corneal haze post refractive surgery is prevented by mitomycin c (MMC) treatment though it can lead to corneal endothelial damage, persistent epithelial defects and necrosis of cells. Suberanilohydroxamic acid (SAHA) however has been proposed to prevent corneal haze without any adverse effects. For clinical application we have investigated the short and long term outcome of cells exposed to SAHA. Human donor cornea, cultured limbal epithelial cells, corneal rims and lenticules were incubated with SAHA and MMC. The cells/tissue was then analyzed by RT-qPCR, immunofluorescence and western blot for markers of apoptosis and fibrosis. The results reveal that short term exposure of SAHA and SAHA + MMC reduced apoptosis levels and increased αSMA expression compared to those treated with MMC. Epithelial cells derived from cultured corneal rim that were incubated with the MMC, SAHA or MMC + SAHA revealed enhanced apoptosis, reduced levels of CK3/CK12, ∆NP63 and COL4A compared to other treatments. In SAHA treated lenticules TGFβ induced fibrosis was reduced. The results imply that MMC treatment for corneal haze has both short term and long term adverse effects on cells and the cellular properties. However, a combinatorial treatment of SAHA + MMC prevents expression of corneal fibrotic markers without causing any adverse effect on cellular properties.
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Affiliation(s)
- Rohit Shetty
- Department of Cornea and Refractive Surgery, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India
| | - Nimisha Rajiv Kumar
- GROW Laboratory, Narayana Nethralaya Post Graduate Institute of Ophthalmology, Narayana Nethralaya Foundation, Narayana Nethralaya, Narayana Health City, Bommasandra, , Bangalore, Karnataka, 560 099, India
| | - Murali Subramani
- Stem Cell Research Lab, GROW Laboratory, Narayana Nethralaya Foundation, Narayana Nethralaya, Bangalore, Karnataka, India
| | - Lekshmi Krishna
- Stem Cell Research Lab, GROW Laboratory, Narayana Nethralaya Foundation, Narayana Nethralaya, Bangalore, Karnataka, India
| | - Ponnalagu Murugeswari
- Stem Cell Research Lab, GROW Laboratory, Narayana Nethralaya Foundation, Narayana Nethralaya, Bangalore, Karnataka, India
| | - Himanshu Matalia
- Department of Cornea and Refractive Surgery, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India
| | - Pooja Khamar
- Department of Cornea and Refractive Surgery, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India
| | - Zelda V Dadachanji
- Department of Cornea and Refractive Surgery, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India
| | - Rajiv R Mohan
- Department of Veterinary Medicine and Surgery, University of Missouri, Columbia, MO, 65211, USA. .,Mason Eye Institute, School of Medicine, University of Missouri, Columbia, MO, 65212, USA. .,Harry S Truman Veterans' Memorial Hospital, Columbia, MO, 65201, USA.
| | - Arkasubhra Ghosh
- GROW Laboratory, Narayana Nethralaya Post Graduate Institute of Ophthalmology, Narayana Nethralaya Foundation, Narayana Nethralaya, Narayana Health City, Bommasandra, , Bangalore, Karnataka, 560 099, India.
| | - Debashish Das
- Stem Cell Research Lab, GROW Laboratory, Narayana Nethralaya Foundation, Narayana Nethralaya, Bangalore, Karnataka, India.
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Xiao YT, Xie HT, Liu X, Duan CY, Qu JY, Zhang MC, Zhao XY. Subconjunctival Injection of Transdifferentiated Oral Mucosal Epithelial Cells for Limbal Stem Cell Deficiency in Rats. J Histochem Cytochem 2020; 69:177-190. [PMID: 33345682 DOI: 10.1369/0022155420980071] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Rat limbal niche cells (LNCs) have been proven to induce transdifferentiation of oral mucosal epithelial cells (OMECs) into corneal epithelial-like cells termed transdifferentiated oral mucosal epithelial cells (T-OMECs). This investigation aimed to evaluate the effect of subconjunctival T-OMEC injections on alkali-induced limbal stem cell deficiency (LSCD) in rats. LNCs were cocultured with OMECs in the Transwell system to obtain T-OMECs, with NIH-3T3 cells serving as a control. Subconjunctival injection of single T-OMEC or OMEC suspension was performed immediately after corneal alkali injury. T-OMECs were prelabeled with the fluorescent dye CM-DiI in vitro and tracked in vivo. Corneal epithelial defect, opacity, and neovascularization were quantitatively analyzed. The degree of corneal epithelial defect (from day 1 onward), opacity (from day 5 onward), and neovascularization (from day 2 onward) was significantly less in the T-OMEC group than in the OMEC group. Cytokeratin 12 (CK12), pigment epithelium-derived factor, and soluble fms-like tyrosine kinase-1 were expressed at a higher rate following T-OMEC injection. Some CM-DiI-labeled cells were found to be coexpressed with CK12, Pax6, and ΔNp63α in the corneal epithelium after subconjunctival injection. Subconjunctival injection of T-OMECs prevents conjunctival invasion and maintains a normal corneal phenotype, which might be a novel strategy in the treatment of LSCD.
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Affiliation(s)
- Yu-Ting Xiao
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hua-Tao Xie
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xin Liu
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chao-Ye Duan
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jing-Yu Qu
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ming-Chang Zhang
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xin-Yue Zhao
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Dhamodaran K, Subramani M, Krishna L, Matalia H, Jayadev C, Chinnappaiah N, Shetty R, Das D. Temporal Regulation of Notch Signaling and Its Influence on the Differentiation of Ex Vivo Cultured Limbal Epithelial Cells. Curr Eye Res 2019; 45:459-470. [PMID: 31558050 DOI: 10.1080/02713683.2019.1673436] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Purpose: Notch signaling plays a vital role in the differentiation and proliferation of corneal epithelial cells from limbal stem cells. The temporal regulation of Notch signaling during this differentiation remains unknown. Hence, we investigated the importance of temporal activation/blockage of Notch signaling during corneal differentiation.Methods: Human limbal epithelial cultures were established with and without Notch activators (rec-Human Jagged1 Fc chimera) and pharmacological blockers (LY-411575). The modulation of Notch signaling was done at different time points during cell differentiation, which were collected on Day 14 for further analysis of differentiation, proliferation, maturation and apoptosis using RT-qPCR and immunofluorescence staining.Results: The activation of Notch signaling at Day 8 resulted in the highest number of mature corneal epithelial cells (p = .008) and pro-apoptosis marker BAX (p = .0001) with no increase in the number of corneal progenitors, and proliferation marker Ki67 compared to untreated controls. Cultures grown in the presence of Notch signaling blockers showed a significantly higher number of corneal progenitors (p = .0001) and proliferation marker Ki67 (p = .02) but lower corneal epithelial marker CK3/CK12 (p = .0007) and no difference in the pro-apoptotic marker BAX compared to untreated controls.Conclusion: During the differentiation of limbal epithelial cells to the corneal epithelial cell type, Day 8 seems to be a crucial window to modulate Notch signaling for a customized outcome.
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Affiliation(s)
- Kamesh Dhamodaran
- Stem Cell Research Lab, GROW Laboratory, Narayana Nethralaya Foundation, Bangalore, Karnataka, India
| | - Murali Subramani
- Stem Cell Research Lab, GROW Laboratory, Narayana Nethralaya Foundation, Bangalore, Karnataka, India
| | - Lekshmi Krishna
- Stem Cell Research Lab, GROW Laboratory, Narayana Nethralaya Foundation, Bangalore, Karnataka, India
| | - Himanshu Matalia
- Department of Cornea and Refractive Surgery, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India
| | - Chaitra Jayadev
- Department of Vitreo-retinal services, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India
| | - Nandini Chinnappaiah
- Department of Cornea and Refractive Surgery, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India
| | - Rohit Shetty
- Department of Cornea and Refractive Surgery, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India
| | - Debashish Das
- Stem Cell Research Lab, GROW Laboratory, Narayana Nethralaya Foundation, Bangalore, Karnataka, India
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Comparison of the efficacy of different cell sources for transplantation in total limbal stem cell deficiency. Graefes Arch Clin Exp Ophthalmol 2019; 257:1253-1263. [PMID: 31004182 DOI: 10.1007/s00417-019-04316-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 02/12/2019] [Accepted: 04/01/2019] [Indexed: 02/04/2023] Open
Abstract
PURPOSE The purpose of this study was to compare the efficacy of allogeneic cultured limbal epithelial transplantation (ACLET) and cultivated oral mucosal epithelial transplantation (COMET) in treating total limbal stem cell deficiency (LSCD). METHODS In this retrospective cohort study, 73 patients (76 eyes) with total LSCD, including 41 patients (42 eyes) treated with ACLET and 32 patients (34 eyes) receiving COMET, were evaluated. The age, gender and injury cause of all patients were recorded. RESULTS The mean follow-up was 23.3 ± 9.9 months in the ACLET group and 16.1 ± 5.8 months in the COMET group. A higher incidence of persistent epithelial defect was observed after COMET (P = 0.023). The overall ocular surface grading scores were all lower in the ACLET group than in the COMET group at 3, 6, and 12 months after surgery and the last follow-up. Kaplan-Meier survival curve analysis demonstrated a significantly higher success rate of ACLET (71.4%), compared with that of COMET (52.9%; P = 0.043). The risk of graft failure was higher in patients with entropion and trichiasis, incomplete eyelid closure and treated with COMET. The graft failure risk rate after COMET was 3.5 times higher than that of ACLET. CONCLUSIONS For total LSCD patients, ACLET should be prioritized, since limbal epithelial cells have better ability to maintain corneal epithelial integrity and ocular surface stability and benefit the ocular surface when compared with oral mucosal epithelial cells. Preoperative and postoperative eyelid abnormalities should be corrected as early as possible.
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Le Q, Deng SX. The application of human amniotic membrane in the surgical management of limbal stem cell deficiency. Ocul Surf 2019; 17:221-229. [PMID: 30633967 DOI: 10.1016/j.jtos.2019.01.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 11/12/2018] [Accepted: 01/07/2019] [Indexed: 12/31/2022]
Abstract
The application of human amniotic membrane (AM) has a wide spectrum of indications in the treatment of ocular surface disorders. Transplantation of AM has been incorporated routinely as a component of ocular surface reconstruction in a variety of ocular pathologies. The application of human AM can be combined with nearly all types of limbal transplantation in treating limbal stem cell deficiency (LSCD). AM provides support and possible protection to the transplanted limbal tissues and limbal stem cells owing to its mechanical and biological properties, and these properties are thought to enhance the success rate of LSC transplantation. This paper reviews the current literature on the applications of AM in the surgical management of LSCD and summarizes the outcome of different surgical approaches. The current literature contains mostly low-level evidences in supporting the role of AM. The efficacy of AM in LSC transplantation needs to be confirmed by randomized controlled clinical trials.
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Affiliation(s)
- Qihua Le
- Stein Eye Institute, Cornea Division, David Geffen School of Medicine, University of California, Los Angeles, USA; Department of Ophthalmology, Eye & ENT Hospital of Fudan University, Shanghai 200031, China
| | - Sophie X Deng
- Stein Eye Institute, Cornea Division, David Geffen School of Medicine, University of California, Los Angeles, USA.
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DERELI CAN GAMZE, AKDERE ÖZGEEKIN, CAN MEHMETEROL, GÜMÜŞDERELIOĞLU MENEMŞE. A simple and efficient method for cultivation of limbal explant stem cells with clinically safe potential. Cytotherapy 2019; 21:83-95. [DOI: 10.1016/j.jcyt.2018.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 11/04/2018] [Accepted: 11/08/2018] [Indexed: 11/26/2022]
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Krishna L, Dhamodaran K, Subramani M, Ponnulagu M, Jeyabalan N, Krishna Meka SR, Jayadev C, Shetty R, Chatterjee K, Khora SS, Das D. Protective Role of Decellularized Human Amniotic Membrane from Oxidative Stress-Induced Damage on Retinal Pigment Epithelial Cells. ACS Biomater Sci Eng 2018; 5:357-372. [DOI: 10.1021/acsbiomaterials.8b00769] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Lekshmi Krishna
- Stem Cell Research Lab, GROW Laboratories, Narayana Nethralaya Foundation, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
- School of Bioscience and Technology, VIT University, Vellore, Tamil Nadu, India
| | - Kamesh Dhamodaran
- Stem Cell Research Lab, GROW Laboratories, Narayana Nethralaya Foundation, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
| | - Murali Subramani
- Stem Cell Research Lab, GROW Laboratories, Narayana Nethralaya Foundation, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
| | - Murugeswari Ponnulagu
- Stem Cell Research Lab, GROW Laboratories, Narayana Nethralaya Foundation, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
| | - Nallathambi Jeyabalan
- Grow Laboratories, Narayana Nethralaya Foundation, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
| | - Sai Rama Krishna Meka
- Department of Materials Engineering, Indian Institute of Science, Bangalore, Karnataka, India
| | - Chaitra Jayadev
- Department of Vitreo-retinal Services, Narayana Nethralaya Eye Institute, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
| | - Rohit Shetty
- Department of Cornea and Refractive Surgery, Narayana Nethralaya Eye Institute, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
| | - Kaushik Chatterjee
- Department of Materials Engineering, Indian Institute of Science, Bangalore, Karnataka, India
| | | | - Debashish Das
- Stem Cell Research Lab, GROW Laboratories, Narayana Nethralaya Foundation, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
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Zhao XY, Xie HT, Duan CY, Li J, Zhang MC. Rat limbal niche cells can induce transdifferentiation of oral mucosal epithelial cells into corneal epithelial-like cells in vitro. Stem Cell Res Ther 2018; 9:256. [PMID: 30257715 PMCID: PMC6158850 DOI: 10.1186/s13287-018-0996-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Cultivated oral mucosal epithelial cells (OMECs) are widely used in the treatment of limbal stem cell deficiency (LSCD) for their ocular reconstruction capability. As the most important component of the limbal microenvironment, limbal niche cells (LNCs) play a key role in the direction of stem cell differentiation. In this study, we investigated whether LNCs can induce the transdifferentiation of rat OMECs to corneal epithelial-like cells. METHODS We isolated OMECs and LNCs from rats by dispase and collagenase, respectively, to establish a three-dimensional or Transwell coculturing system. NIH-3T3 cells and renewed LNCs were also used as feeder layers in the Transwell system to compare their ability to support the OMECs. The airlift method was used for the culture of OMECs to obtain a stratified epithelial sheet. Cocultured OMECs were characterized by reverse-transcription polymerase chain reaction, Western blotting, hematoxylin and eosin staining, and immunohistochemistry. RESULTS The cocultured OMECs showed corneal epithelial-like morphology and expressed the corneal epithelial markers CK12 and Pax6 in most cocultured systems. Furthermore, we found that the expression level of CK12, Pax6, and proliferation marker Ki67 was upregulated when compared with that of other groups by renewing the LNCs in the Transwell system (p < 0.05, n = 3), suggesting that this might be a potential method for improving the efficiency of transdifferentiation. The obtained stratified epithelial sheet expressed CK3 and CK12. CONCLUSION Through coculturing OMECs and LNCs in vitro, we successfully cultivated corneal epithelial-like OMECs. This investigation is of great significance for the treatment of LSCD and ocular surface reconstruction.
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Affiliation(s)
- Xin-Yue Zhao
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Hua-Tao Xie
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chao-Ye Duan
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jing Li
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ming-Chang Zhang
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Emerging Therapeutic Strategies for Limbal Stem Cell Deficiency. J Ophthalmol 2018; 2018:7894647. [PMID: 30050691 PMCID: PMC6040301 DOI: 10.1155/2018/7894647] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 04/19/2018] [Indexed: 12/12/2022] Open
Abstract
Identification and characterization of the limbal epithelial stem cells (LESCs) has proven to be a major accomplishment in anterior ocular surface biology. These cells have been shown to be a subpopulation of limbal epithelial basal cells, which serve as the progenitor population of the corneal epithelium. LESCs have been demonstrated to play an important role in maintaining corneal epithelium homeostasis. Many ocular surface diseases, including intrinsic (e.g., Sjogren's syndrome) or extrinsic (e.g., alkali or thermal burns) insults, which impair LESCs, can lead to limbal stem cell deficiency (LSCD). LSCD is characterized by an overgrowth of conjunctival-derived epithelial cells, corneal neovascularization, and chronic inflammation, eventually leading to blindness. Treatment of LSCD has been challenging, especially in bilateral total LSCD. Recently, advances in LESC research have led to novel therapeutic approaches for treating LSCD, such as transplantation of the cultured limbal epithelium. These novel therapeutic approaches have demonstrated efficacy for ocular surface reconstruction and restoration of vision in patients with LSCD. However, they all have their own limitations. Here, we describe the current status of LSCD treatment and discuss the advantages and disadvantages of the available therapeutic modalities.
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Resveratrol reverses the adverse effects of bevacizumab on cultured ARPE-19 cells. Sci Rep 2017; 7:12242. [PMID: 28947815 PMCID: PMC5612947 DOI: 10.1038/s41598-017-12496-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 09/11/2017] [Indexed: 01/03/2023] Open
Abstract
Age-related macular degeneration (AMD) and proliferative diabetic retinopathy (PDR) are one of the major causes of blindness caused by neo-vascular changes in the retina. Intravitreal anti-VEGF injections are widely used in the treatment of wet-AMD and PDR. A significant percentage of treated patients have complications of repeated injections. Resveratrol (RES) is a polyphenol phytoalexin with anti-oxidative, anti-inflammatory and anti-proliferative properties. Hence, we hypothesized that if RES is used in combination with bevacizumab (BEV, anti-VEGF), it could reverse the adverse effects that precipitate fibrotic changes, drusen formation, tractional retinal detachment and so on. Human retinal pigment epithelial cells were treated with various combinations of BEV and RES. There was partial reduction in secreted VEGF levels compared to untreated controls. Epithelial-mesenchymal transition was lower in BEV + RES treated cultures compared to BEV treated cultures. The proliferation status was similar in BEV + RES as well as BEV treated cultures both groups. Phagocytosis was enhanced in the presence of BEV + RES compared to BEV. Furthermore, we observed that notch signaling was involved in reversing the adverse effects of BEV. This study paves way for a combinatorial strategy to treat as well as prevent adverse effects of therapy in patients with wet AMD and PDR.
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Gokuladhas K, Sivapriya N, Barath M, NewComer CH. Ocular progenitor cells and current applications in regenerative medicines - Review. Genes Dis 2017; 4:88-99. [PMID: 30258910 PMCID: PMC6136601 DOI: 10.1016/j.gendis.2017.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 01/31/2017] [Indexed: 12/31/2022] Open
Abstract
The recent emerging field of regenerative medicine is to present solutions for chronic diseases which cannot be sufficiently repaired by the body's own mechanisms. Stem cells are undifferentiated biological cells and have the potential to develop into many different cell types in the body during early life and growth. Self renewal and totipotency are the characteristic features of stem cells and it holds a promising result for treating various diseases like diabetic foot ulcer, heart diseases, lung diseases, Autism, Skin diseases, arthritis including eye disease. Failure of complete recovery of eye diseases and complications that follow conventional treatments have shifted search to a new form of regenerative medicine using Stem cells. The ocular progenitor cells are remarkable in stem cell biology and replenishing degenerated cells despite being present in low quantity and quiescence in our body has a high therapeutic value. In this paper we have review the applications on ocular progenitor stem cells in treatment of human eye diseases and address the strategies that have been exploited in an effort to regain visual function in the advance treatment of stem cells without any side effects and also present the significance in advance stem cell research.
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Affiliation(s)
- K Gokuladhas
- World Stem Cell Clinic India LLP (ISO 9001:2015 Certified Clinic), #6, 9th Cross Street, Kapaleeshwar Nagar, Neelankarai, Chennai 600115, India
| | - N Sivapriya
- World Stem Cell Clinic India LLP (ISO 9001:2015 Certified Clinic), #6, 9th Cross Street, Kapaleeshwar Nagar, Neelankarai, Chennai 600115, India
| | - M Barath
- World Stem Cell Clinic India LLP (ISO 9001:2015 Certified Clinic), #6, 9th Cross Street, Kapaleeshwar Nagar, Neelankarai, Chennai 600115, India
| | - Charles H NewComer
- World Stem Cell Clinic India LLP (ISO 9001:2015 Certified Clinic), #6, 9th Cross Street, Kapaleeshwar Nagar, Neelankarai, Chennai 600115, India
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Down-regulated notch signaling in arpe-19 cells Cultured on denuded human Amniotic membrane. ACTA ACUST UNITED AC 2017. [DOI: 10.22376/ijpbs.2017.8.1.b316-323] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Stem Cell Therapy for Treatment of Ocular Disorders. Stem Cells Int 2016; 2016:8304879. [PMID: 27293447 PMCID: PMC4884591 DOI: 10.1155/2016/8304879] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 04/10/2016] [Indexed: 12/30/2022] Open
Abstract
Sustenance of visual function is the ultimate focus of ophthalmologists. Failure of complete recovery of visual function and complications that follow conventional treatments have shifted search to a new form of therapy using stem cells. Stem cell progenitors play a major role in replenishing degenerated cells despite being present in low quantity and quiescence in our body. Unlike other tissues and cells, regeneration of new optic cells responsible for visual function is rarely observed. Understanding the transcription factors and genes responsible for optic cells development will assist scientists in formulating a strategy to activate and direct stem cells renewal and differentiation. We review the processes of human eye development and address the strategies that have been exploited in an effort to regain visual function in the preclinical and clinical state. The update of clinical findings of patients receiving stem cell treatment is also presented.
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