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Cheng Y, Liu G. Evaluation of the Treatment Effects of Conditioned Medium from Human Orbital Adipose-Derived Stem Cells in a Corneal Alkali Burn Rabbit Model. J Ocul Pharmacol Ther 2024; 40:222-231. [PMID: 38546750 DOI: 10.1089/jop.2023.0154] [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: 05/24/2024] Open
Abstract
Purpose: This study aimed to evaluate the effects of a new treatment-conditioned medium from human orbital adipose-derived stem cells (OASC-CM)-on corneal recovery after alkali burns in a rabbit model. Methods: The corneal alkali burn rabbit model was established and treated with OASC-CM, conditioned medium from human abdominal subcutaneous adipose-derived stem cells (ABASC-CM), and fresh control culture medium (con-CM) three times a day for 7 days, respectively. Subsequently, the treatment effects were evaluated and compared through clinical, histological, immunohistochemical, and cytokine evaluations. Results: Clinically, OASC-CM alleviated corneal opacity and edema and promoted recovery of corneal epithelium defect. Histologically and immunohistochemically, OASC-CM inhibited neovascularization, conjunctivalization, and immuno-inflammatory reaction, while promoting corneal regeneration and rearrangement. Increased secretion of interleukin-10 and inhibited protein levels of cluster of differentiation 45, interferon-γ, and tumor necrosis factor-α were observed in the alkali-burned cornea after OASC-CM treatment, which might be the relevant molecular mechanism. Conclusions: OASC-CM showed significant effects on the recovery of rabbit corneal alkali burns and eliminated immunological and ethical limitations, representing a new option for corneal wound treatment.
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Affiliation(s)
- Yu Cheng
- Department of Plastic and Reconstructive Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Guangpeng Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
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Alió JL, Niazi S, Doroodgar F, Barrio JLAD, Hashemi H, Javadi MA. Main issues in penetrating keratoplasty. Taiwan J Ophthalmol 2024; 14:50-58. [PMID: 38654981 PMCID: PMC11034681 DOI: 10.4103/tjo.tjo-d-24-00001] [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: 12/31/2023] [Accepted: 01/09/2024] [Indexed: 04/26/2024] Open
Abstract
This review explores contemporary challenges in penetrating keratoplasty (PK), focusing on technical intricacies, technological advancements, and strategies for preventing graft rejection. A systematic literature search from January 2018 to July 2023 was conducted across PubMed, Cochrane, Web of Science, Scopus, and EMBASE. The inclusion criteria comprised studies on PK and its comparison with other corneal pathologies, with emphasis on keratoconus (KC). Two independent reviewers screened studies, extracting relevant data. The review covers PK evolution, highlighting infra-red femtosecond lasers' impact on graft shapes, minimizing astigmatism, and enhancing wound healing. Graft rejection, a primary complication, is examined, detailing risk factors and preventive measures. Preoperative considerations, diagnostic techniques for rejection, and PK in KC are discussed. Postoperative care's significance, including intraocular pressure monitoring and steroid administration, is emphasized. The paper concludes with a comprehensive approach to prevent graft rejection, involving topical and systemic medications. An outlook on evolving monoclonal antibody research is presented. As the field progresses, personalized approaches and ongoing therapeutic exploration are expected to refine strategies, enhancing PK outcomes.
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Affiliation(s)
- Jorge L. Alió
- Division of Ophthalmology, Universidad Miguel Hernández, Alicante, Spain
- Vissum Miranza Alicante, Alicante, Spain
| | - Sana Niazi
- Translational Ophthalmology Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Negah Aref Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farideh Doroodgar
- Translational Ophthalmology Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Negah Aref Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Hassan Hashemi
- Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran
| | - Mohammad Ali Javadi
- Ophthalmic Research Center, Labbafinezhad Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Yang Y, Zhong J, Cui D, Jensen LD. Up-to-date molecular medicine strategies for management of ocular surface neovascularization. Adv Drug Deliv Rev 2023; 201:115084. [PMID: 37689278 DOI: 10.1016/j.addr.2023.115084] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/30/2023] [Accepted: 09/04/2023] [Indexed: 09/11/2023]
Abstract
Ocular surface neovascularization and its resulting pathological changes significantly alter corneal refraction and obstruct the light path to the retina, and hence is a major cause of vision loss. Various factors such as infection, irritation, trauma, dry eye, and ocular surface surgery trigger neovascularization via angiogenesis and lymphangiogenesis dependent on VEGF-related and alternative mechanisms. Recent advances in antiangiogenic drugs, nanotechnology, gene therapy, surgical equipment and techniques, animal models, and drug delivery strategies have provided a range of novel therapeutic options for the treatment of ocular surface neovascularization. In this review article, we comprehensively discuss the etiology and mechanisms of corneal neovascularization and other types of ocular surface neovascularization, as well as emerging animal models and drug delivery strategies that facilitate its management.
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Affiliation(s)
- Yunlong Yang
- Department of Cellular and Genetic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China.
| | - Junmu Zhong
- Department of Ophthalmology, Longyan First Hospital Affiliated to Fujian Medical University, Longyan 364000, Fujian Province, China
| | - Dongmei Cui
- Shenzhen Eye Hospital, Jinan University, Shenzhen Eye Institute, Shenzhen 518040, Guangdong Province, China
| | - Lasse D Jensen
- Department of Health, Medicine and Caring Sciences, Division of Diagnostics and Specialist Medicine, Unit of Cardiovascular Medicine, Linköping University, Linköping, Sweden.
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Ergen SK, Subasi S, Rencber SF, Duruksu G, Yazir Y. Evaluation of clinical and histological effects of KGF-2 and NGF on corneal wound healing in an experimental alkali burn rabbit model. Exp Eye Res 2022; 223:109190. [PMID: 35963307 DOI: 10.1016/j.exer.2022.109190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/02/2022] [Accepted: 07/07/2022] [Indexed: 11/04/2022]
Abstract
Endogenously produced peptide growth factors such as keratinocyte growth factor-2 (KGF-2) and nerve growth factor (NGF) play a key role in the natural corneal wound healing process. However, this self-healing ability of the corneal tissue is often impaired in cases of severe corneal damage, as in corneal alkali injuries. In the present study, we investigated the clinical and histopathological effects of topical recombinant human keratinocyte growth factor-2 and nerve growth factor treatments in a rabbit model of corneal alkali burn. After induction of an alkali burn, 24 rabbits were divided equally into three groups: control group, KGF-2 group, and NGF group. Clinical parameters including epithelial healing, opacification, neovascularization and central corneal thickness were evaluated on the first (D1), seventh (D7) and fourteenth (D14) days after injury. Corneal histology was performed using hematoxylin/eosin (H&E) and Masson's Trichrome stains. Immunohistochemical staining for matrix metalloproteinase-2 (MMP-2), MMP-9 and transforming growth factor-β (TGF-β) was performed. On D14, the percentage of epithelial defect and opacity were significantly less in the KGF-2 and NGF groups compared to the control group (p < 0.05). There was no significant difference between the groups in central corneal thickness. In the evaluation of neovascularization on D14, the NGF group was significantly less vascularized than the control group (p = 0.011). Histological examination showed a significant increase in stromal edema and inflammation in the control group compared to both treatment groups (p < 0.05). There was also a significant difference between the NGF and control groups in histological evaluation of epithelial repair and vascularization (p < 0.05). When immunoreactivity of MMP-2, MMP-9 and TGF-β was examined, there was a significant increase in the control group compared to the NGF group (p < 0.05). Taken together, both NGF and KGF-2 treatments were effective for early re-epithelialization and decrease in inflammation, opacity and neovascularization after corneal alkali burn. The inhibitory effect of NGF treatment on chemical-induced neovascularization was found to be superior to KGF-2 treatment.
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Affiliation(s)
- Sebnem Kaya Ergen
- Department of Ophthalmology, Karamürsel State Hospital, Kocaeli, Turkey.
| | - Sevgi Subasi
- Department of Ophthalmology, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Selenay Furat Rencber
- Department of Histology and Embryology, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Gökhan Duruksu
- Stem Cell and Gene Therapies Research and Applied Center, Kocaeli University, Kocaeli, Turkey
| | - Yusufhan Yazir
- Department of Histology and Embryology, Kocaeli University Faculty of Medicine, Kocaeli, Turkey; Stem Cell and Gene Therapies Research and Applied Center, Kocaeli University, Kocaeli, Turkey
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Sampaio LP, Hilgert GSL, Shiju TM, Santhiago MR, Wilson SE. Topical Losartan and Corticosteroid Additively Inhibit Corneal Stromal Myofibroblast Generation and Scarring Fibrosis After Alkali Burn Injury. Transl Vis Sci Technol 2022; 11:9. [PMID: 35819289 PMCID: PMC9287619 DOI: 10.1167/tvst.11.7.9] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 06/19/2022] [Indexed: 12/26/2022] Open
Abstract
Purpose To evaluate the efficacy of losartan and prednisolone acetate in inhibiting corneal scarring fibrosis after alkali burn injury in rabbits. Methods Sixteen New Zealand White rabbits were included. Alkali injuries were produced using 1N sodium hydroxide on a 5-mm diameter Whatman #1 filter paper for 1 minute. Four corneas in each group were treated six times per day for 1 month with 50 µL of (1) 0.8 mg/mL losartan in balanced salt solution (BSS), (2) 1% prednisolone acetate, (3) combined 0.8 mg/mL losartan and 1% prednisolone acetate, or (4) BSS. Area of opacity and total opacity were analyzed in standardized slit-lamp photos with ImageJ. Corneas in both groups were cryofixed in Optimal cutting temperature (OCT) compound at 1 month after surgery, and immunohistochemistry was performed for alpha-smooth muscle actin (α-SMA) and keratocan or transforming growth factor β1 and collagen type IV with ImageJ quantitation. Results Combined topical losartan and prednisolone acetate significantly decreased slit-lamp opacity area and intensity, as well as decreased stromal myofibroblast α-SMA area and intensity of staining per section and confined myofibroblasts to only the posterior stroma with repopulation of the anterior and mid-stroma with keratocan-positive keratocytes after 1 month of treatment. Corneal fibroblasts produced collagen type IV not associated with basement membranes, and this production was decreased by topical losartan. Conclusions Combined topical losartan and prednisolone acetate decreased myofibroblast-associated fibrosis after corneal alkali burns that produced full-thickness injury, including corneal endothelial damage. Increased dosages and duration of treatment may further decrease scarring fibrosis. Translational Relevance Topical losartan and prednisolone acetate decrease myofibroblast-mediated scarring fibrosis after corneal injury.
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Affiliation(s)
- Lycia Pedral Sampaio
- Cole Eye Institute, Cleveland Clinic, Cleveland, OH, USA
- Department of Ophthalmology at University of São Paulo, São Paulo, Brazil
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MIC-1 Antlerogenic Stem Cells Homogenate from Cervus elaphus Accelerate Corneal Burn Reepithelization in Rabbits. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12052468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Deer antler is the only mammalian organ that can fully grow back once lost from its pedicle. Antler regeneration is a stem cell-based process. Therefore, antlers probably offer the most pertinent model for studying organ regeneration in mammals. Evaluation of the effect of deer antler stem cells on the healing of superficial and deep rabbit corneal wounds was performed. Thirty-six New Zealeand White rabbits were used in this study in superficial and deep denaturation models, and corneal erosion was performed with n-heptanol placed on the cornea for 30 and NaOH for 90 s. Antler stem cells in drop formulation with hyaluronate was used. As a control, sodium hyaluronate in the superficial model and protein-free calf blood dialysate (Solcoseryl) in the deep model were administered. In superficial corneal damage, a reduction in the area of the damaged cornea was observed from day 3 of the experiment to an adequate level: 45% in the test group and 52% in the control group relative to the baseline damage (100%). Between days 3 and 7, on average, a smaller lesion area was observed in the group receiving antler stem cells. The use of antler stem cells has resulted in a marked improvement in cornea clarity. According to the 5-point scale of corneal opacity evaluation, where 1 is completely clear and 5 is completely opaque, the first statistically significant changes were observed after 4 weeks of treatment: 3.0 in the study group, 4.1 in the control with Solcoseryl, and 4.4 in the control group. After 9 weeks, these values were, 2.5, 3.8, and 4.1, respectively. The present preliminary study shows the promising results of antlerogenic stem cells of Cervus elaphus topically applied for the treatment of corneal injury. A deeper understanding of the developmental mechanisms involved in antler renewal can be useful for controlling regeneration cornea processes.
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Yun HW, Choi BH, Park DY, Jin LH, Min BH. Inhibitory Effect of Topical Cartilage Acellular Matrix Suspension Treatment on Neovascularization in a Rabbit Corneal Model. Tissue Eng Regen Med 2020; 17:625-640. [PMID: 32617955 PMCID: PMC7524995 DOI: 10.1007/s13770-020-00275-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/13/2020] [Accepted: 05/14/2020] [Indexed: 10/23/2022] Open
Abstract
BACKGROUND The extracellular matrix (ECM) of articular cartilage has an inhibitory effect on vascularization, yet clinical utilization has been technically challenging. In this study, we aimed to fabricate a biologically functional ECM powder suspension from porcine articular cartilage that inhibits neovascularization (NV). METHODS The digested-cartilage acellular matrix (dg-CAM) was prepared by sequential processes of decellularization, enzymatic digestion and pulverization. Physicochemical properties of dg-CAM were compared with that of native cartilage tissue (NCT). Cellular interactions between human umbilical vein endothelial cells (HUVECs) and dg-CAM was evaluated with proliferation, migration and tube formation assays compared with that of type I collagen (COL) and bevacizumab, an anti-angiogenic drug. We then investigated the therapeutic potential of topical administration of dg-CAM suspension on the experimentally induced rabbit corneal NV model. RESULTS The dg-CAM released a significantly larger amount of soluble proteins than that of the NCT and showed an improved hydrophilic and dispersion properties. In contrast, the dg-CAM contained a large amount of collagen, glycosaminoglycans and anti-angiogenic molecules as much as the NCT. The inhibitory effect on NV of the dg-CAM was more prominent than that of COL and even comparable to that of bevacizumab in inhibiting the HUVECs. The therapeutic potential of the dg-CAM was comparable to that of bevacizumab in the rabbit corneal NV model by efficiently inhibiting neovessel formation of the injured cornea. CONCLUSION The current study developed a dg-CAM having anti-angiogenic properties, together with water-dispersible properties suitable for topical or minimally invasive application for prevention of vessel invasion.
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Affiliation(s)
- Hee-Woong Yun
- Department of Molecular Science and Technology, Ajou University, San 5, Wonchon-dong, Youngtong-gu, Suwon, 16499, Republic of Korea
- Cell Therapy Center, Ajou University School of Medicine, San 5, Wonchon-dong, Youngtong-gu, Suwon, 16499, Republic of Korea
| | - Byung Hyune Choi
- Department of Biomedical Sciences, Inha University College of Medicine, 100, Inha-ro, Michuhol-gu, Incheon, 22212, Republic of Korea
| | - Do Young Park
- Department of Orthopedic Surgery, Ajou University School of Medicine, San 5, Wonchon-dong, Youngtong-gu, Suwon, 16499, Republic of Korea
| | - Long Hao Jin
- Department of Orthopedic Surgery, Yanbian University Medical School, 977 Gongyuan Rd, Yanji, Yanbian, China
| | - Byoung-Hyun Min
- Department of Molecular Science and Technology, Ajou University, San 5, Wonchon-dong, Youngtong-gu, Suwon, 16499, Republic of Korea.
- Cell Therapy Center, Ajou University School of Medicine, San 5, Wonchon-dong, Youngtong-gu, Suwon, 16499, Republic of Korea.
- Department of Orthopedic Surgery, Ajou University School of Medicine, San 5, Wonchon-dong, Youngtong-gu, Suwon, 16499, Republic of Korea.
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Yuvashree M, Ganesh RN, Viswanathan P. Potential application of nanoemulsified garlic oil blend in mitigating the progression of type 2 diabetes-mediated nephropathy in Wistar rats. 3 Biotech 2020; 10:272. [PMID: 32523866 PMCID: PMC7260324 DOI: 10.1007/s13205-020-02262-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 05/14/2020] [Indexed: 02/05/2023] Open
Abstract
The renoprotective potential of nanoemulsified garlic oil blend (GNE) in alleviating the progressive stages of hyperlipidemia-mediated diabetic nephropathy was examined. The study was carried out in high fat-fed, streptozotocin-induced type 2 diabetic Wistar rats for five months. The diabetic rats showed a significant increase of area under the curve in OGTT (p < 0.01) and IPITT (p < 0.01), increased urinary albumin (p < 0.01), urinary microprotein (p < 0.001), total cholesterol (p < 0.01), triglycerides (p < 0.001) and LDL cholesterol (p < 0.001), with decreased serum albumin (p < 0.01), serum protein (p < 0.001) and HDL-cholesterol levels (p < 0.05) than the control rats. The histopathological analysis evidenced mesangial expansion and hypercellularity at the end of the first and third month, and glomerulosclerosis and tubular atrophy at the end of the fifth month in diabetic rats. Moreover, on disease progression, increase in urinary podocalyxin, NGAL and CD36 was observed, and the renal mRNA and protein expression of podocalyxin decreased significantly with a concomitant increase in NGAL and CD36 expression from first till fifth month end. The treatment with GNE (20 mg/kg) significantly ameliorated the serum albumin (p < 0.001) and urine albumin (p < 0.01) from the end of the third month with significant attenuation in the lipid profile than GO (20 mg/kg) or Ator (8 mg/kg). Moreover, GNE reverted the histopathological alterations and attenuated the aberrant mRNA, protein expression and urinary excretion level of renal CD36, podocalyxin and NGAL in diabetic rats from an early stage of disease till the end of the study period. This study demonstrated the enhanced efficacy of GO in nanoemulsified form in mitigating the progression of nephropathy in type 2 diabetic rats.
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Affiliation(s)
- Muralidaran Yuvashree
- Renal Research Lab, Centre for Biomedical Research, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu 632 014 India
| | - Rajesh Nachiappa Ganesh
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Dhanvantrinagar, Puducherry India
| | - Pragasam Viswanathan
- Renal Research Lab, Centre for Biomedical Research, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu 632 014 India
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Yuvashree M, Ganesh RN, Viswanathan P. Potential application of nanoemulsified garlic oil blend in mitigating the progression of type 2 diabetes-mediated nephropathy in Wistar rats. 3 Biotech 2020. [DOI: https://doi.org/10.1007/s13205-020-02262-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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10
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Moghadam MR, Jafarinasab MR, Yousefi Z, Moghaddam AS, Memarzadeh H, Kanavi MR. Aloe Vera Gel-derived Eye Drops for Alkaline Corneal Injury in a Rabbit Model. J Ophthalmic Vis Res 2020; 15:7-15. [PMID: 32095203 PMCID: PMC7001018 DOI: 10.18502/jovr.v15i1.5932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 05/14/2019] [Indexed: 11/24/2022] Open
Abstract
Purpose To investigate the efficacy of topical Aloe Vera (AV) gel-derived eye drops on the healing of alkali-burned corneas in rabbits. Methods Thirty alkali-burned corneas of 30 New Zealand albino rabbits were categorized into three groups: AV treatment group that received AV gel-derived eye drops four times a day; medical therapy (MT) group that received conventional treatment; and the control group. Clinical examinations together with digital imaging of the corneas were performed on days 0, 1, 2, 4, and 7. The area of the corneal epithelial defect (CED) was measured using ImageJ software. After euthanizing the rabbits, the affected corneas were evaluated by histopathological examination. Finally, the clinical and histopathological results were compared among the groups. Results The CED area on days 2 and 7 was significantly less in the AV group than that in the MT group (P = 0.007 and P = 0.024, respectively) and the control group (P = 0.003 and P = 0.037, respectively). None of the cases developed hypersensitivity reactions, limbal ischemia, descemetocele, or corneal perforation during the study period. Based on histopathology, the AV group had notably less keratocyte loss than the MT group (P = 0.001) and the control group (P = 0.022). The inflammatory response after the alkali burn was higher in the AV group than that in the controls (P = 0.028). Conclusion Short-term topical AV treatment was effective in healing alkali-burned corneas and hastened corneal re-epithelialization as compared to MT; however, AV gel-derived eye drops did not reduce the inflammatory response.
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Affiliation(s)
- Mohsen Rezaei Moghadam
- Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Zahra Yousefi
- Torfeh Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Sanjari Moghaddam
- Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hajar Memarzadeh
- School of Traditional Medicine, Shahid Sadoughi University of Medical Sciences, Ardakan, Iran
| | - Mozhgan Rezaei Kanavi
- Ocular Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Therapeutic Strategies for Corneal Wound Angiogenesis. CURRENT PATHOBIOLOGY REPORTS 2020. [DOI: 10.1007/s40139-020-00206-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Tang KC, Yang KC, Lin CW, Chen YK, Lu TY, Chen HY, Cheng NC, Yu J. Human Adipose-Derived Stem Cell Secreted Extracellular Matrix Incorporated into Electrospun Poly(Lactic- co-Glycolic Acid) Nanofibrous Dressing for Enhancing Wound Healing. Polymers (Basel) 2019; 11:E1609. [PMID: 31623334 PMCID: PMC6835469 DOI: 10.3390/polym11101609] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/26/2019] [Accepted: 09/29/2019] [Indexed: 12/23/2022] Open
Abstract
Wound dressing, which prevents dehydration and provides a physical barrier against infection to wound beds, can improve wound healing. The interactions between extracellular matrix (ECM) and growth factors is critical to the healing process. Electrospun nanofibers are promising templates for wound dressings due to the structure similarity to ECM of skin. Otherwise, the ECM secreted by human adipose-derived stem cells (hASCs) is rich in growth factors known to enhance wound healing. Accordingly, we propose that the PLGA nanofibrous template incorporated with hASCs-secreted ECM may enhance wound healing. In this study, PLGA nanofibrous matrixes with an aligned or a random structure were prepared by electrospinning. Human ASCs cultured on the aligned matrix had a better viability and produced a larger amount of ECM relative to that of random one. After 7 days' cultivation, the hASCs on aligned PLGA substrates underwent decellularization to fabricate cECM/PLGA dressings. By using immunohistochemical staining against F-actin and cell nucleus, the removal of cellular components was verified. However, the type I collagen and laminin were well preserved on the cECM/PLGA nanofibrous matrixes. In addition, this substrate was hydrophilic, with appropriate mechanical strength to act as a wound dressing. The L929 fibroblasts had good activity, survival and proliferation on the cECM/PLGA meshes. In addition, the cECM/PLGA nanofibrous dressings improved the wound healing of surgically created full-thickness skin excision in a mouse model. This hASCs-secreted ECM incorporated into electrospun PLGA nanofibrous could be a promising dressing for enhancing wound healing.
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Affiliation(s)
- Kao-Chun Tang
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Kai-Chiang Yang
- School of Dental Technology, Taipei Medical University, Taipei 106, Taiwan.
| | - Che-Wei Lin
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Yi-Kai Chen
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Ting-Yu Lu
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Hsien-Yeh Chen
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Nai-Chen Cheng
- Department of Surgery, National Taiwan University Hospital, Taipei 100, Taiwan.
| | - Jiashing Yu
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
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Roshandel D, Eslani M, Baradaran-Rafii A, Cheung AY, Kurji K, Jabbehdari S, Maiz A, Jalali S, Djalilian AR, Holland EJ. Current and emerging therapies for corneal neovascularization. Ocul Surf 2018; 16:398-414. [PMID: 29908870 DOI: 10.1016/j.jtos.2018.06.004] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 06/10/2018] [Accepted: 06/12/2018] [Indexed: 02/08/2023]
Abstract
The cornea is unique because of its complete avascularity. Corneal neovascularization (CNV) can result from a variety of etiologies including contact lens wear; corneal infections; and ocular surface diseases due to inflammation, chemical injury, and limbal stem cell deficiency. Management is focused primarily on the etiology and pathophysiology causing the CNV and involves medical and surgical options. Because inflammation is a key factor in the pathophysiology of CNV, corticosteroids and other anti-inflammatory medications remain the mainstay of treatment. Anti-VEGF therapies are gaining popularity to prevent CNV in a number of etiologies. Surgical options including vessel occlusion and ocular surface reconstruction are other options depending on etiology and response to medical therapy. Future therapies should provide more effective treatment options for the management of CNV.
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Affiliation(s)
- Danial Roshandel
- Ocular Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Medi Eslani
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA; Cincinnati Eye Institute, Edgewood, KY/ University of Cincinnati, Department of Ophthalmology, Cincinnati, OH, USA
| | - Alireza Baradaran-Rafii
- Ocular Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Albert Y Cheung
- Cincinnati Eye Institute, Edgewood, KY/ University of Cincinnati, Department of Ophthalmology, Cincinnati, OH, USA
| | - Khaliq Kurji
- Cincinnati Eye Institute, Edgewood, KY/ University of Cincinnati, Department of Ophthalmology, Cincinnati, OH, USA
| | - Sayena Jabbehdari
- Ocular Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Alejandra Maiz
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Setareh Jalali
- Ocular Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali R Djalilian
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA.
| | - Edward J Holland
- Cincinnati Eye Institute, Edgewood, KY/ University of Cincinnati, Department of Ophthalmology, Cincinnati, OH, USA.
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Extracellular matrix and fibroblast injection produces pterygium-like lesion in rabbits. Biol Res 2018; 51:15. [PMID: 29866159 PMCID: PMC5987467 DOI: 10.1186/s40659-018-0165-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 05/24/2018] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Translational research to develop pharmaceutical and surgical treatments for pterygium requires a reliable and easy to produce animal model. Extracellular matrix and fibroblast are important components of pterygium. The aim of this study was to analyze the effect of the subconjunctival injection of fibroblast cells (NIH3T3 cell line) and exogenous extracellular matrix in rabbits in producing a pterygium-like lesion. METHODS Six 3-month-old white New Zealand rabbits were injected with 20,000 NIH3T3 cells and 5 µL of Matrigel in the right conjunctiva, and with only 5 µL of Matrigel in the left conjunctiva. The eyes were photographed under a magnification of 16× using a 12-megapixel digital camera attached to the microscope on day 1, 3 and 7. Conjunctival vascularization was measured by analyzing images to measure red pixel saturation. Area of corneal and conjunctival fibrovascular tissue formation on the site of injection was assessed by analyzing the images on day 3 and 7 using area measurement software. Histopathologic characteristics were determined in the rabbit tissues and compared with a human primary pterygium. RESULTS The two treatments promoted growth of conjunctival fibrovascular tissue at day 7. The red pixel saturation and area of fibrovascular tissue developed was significantly higher in right eyes (p < 0.05). Tissues from both treatments showed neovascularization in lesser extent to that observed in human pterygium. Acanthosis, stromal inflammation, and edema were found in tissues of both treatments. No elastosis was found in either treatment. CONCLUSIONS Matrigel alone or in combination with NIH3T3 cells injected into the rabbits' conjunctiva can promote tissue growth with characteristics of human pterygium, including neovascularization, acanthosis, stromal inflammation, and edema. The combination of Matrigel with NIH3T3 cells seems to have an additive effect on the size and redness of the pterygium-like tissue developed.
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15
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Microplasma Jet Arrays as a Therapeutic Choice for Fungal Keratitis. Sci Rep 2018; 8:2422. [PMID: 29403058 PMCID: PMC5799211 DOI: 10.1038/s41598-018-20854-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 01/24/2018] [Indexed: 11/08/2022] Open
Abstract
The clinical impact of microplasma jets on rabbit eyes infected by Candida albicans has been investigated. Arrays of such jets produce low-temperature plasma micro-columns suitable for ophthalmic therapeutics and fungal infections, in particular, and the technology is capable of being scaled to surface areas of at least 10 cm2. Keratitis was induced in the right central corneas of rabbits, whereas the left eyes served as a normal group. The rabbits were divided into the plasma non-treated group (control) and plasma treatment group. Histologic analyses of both groups showed marked reductions in the thickness, angiogenesis, and opacity of all rabbit corneas following plasma treatment. Indeed, for treatment times beyond 14 days, infected eyes exhibited no significant differences from the normal group. Healing of rabbit eyes infected by Candida albicans apparently proceeds by disrupting corneal epithelial proliferation, and by reducing fibrotic changes in the stroma. This study demonstrates that low-temperature plasma jets are remarkably effective in healing Candida albicans-infected corneas, thereby providing a promising medical treatment option for keratitis.
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16
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Treatment of acute ocular chemical burns. Surv Ophthalmol 2017; 63:214-235. [PMID: 28935121 DOI: 10.1016/j.survophthal.2017.09.005] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 09/08/2017] [Accepted: 09/11/2017] [Indexed: 01/15/2023]
Abstract
Ocular chemical burns are an ophthalmic emergency and are responsible for 11.5%-22.1% of ocular injuries. Immediate copious irrigation is universally recommended in acute ocular burns to remove the offending agent and minimize damage. Conventional medical therapy consists of the use of agents that promote epithelialization, minimize inflammation, and prevent cicatricial complications. Biological fluids such as autologous serum, umbilical cord blood serum, platelet-rich plasma, and amniotic membrane suspension are a rich source of growth factors and promote healing when used as adjuncts to conventional therapy. Surgical treatment of acute ocular burns includes the debridement of the necrotic tissue, application of tissue adhesives, tenoplasty, and tectonic keratoplasty. Amniotic membrane transplantation is a novel surgical treatment that is increasingly being used as an adjunct to conventional treatment to promote epithelial healing, minimize pain, and restore visual acuity. Various experimental treatments that aim to promote wound healing and minimize inflammation are being evaluated such as human mesenchymal and adipose stem cells, beta-1,3 glucan, angiotensin-converting enzyme inhibitors, cultivated fibroblasts, zinc desferrioxamine, antifibrinolytic agents, antioxidants, collagen cross-linking, and inhibitors of corneal neovascularization.
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Lee H, Kim CE, Ahn BN, Yang J. Anti-inflammatory effect of hydroxyproline-GQDGLAGPK in desiccation stress-induced experimental dry eye mouse. Sci Rep 2017; 7:7413. [PMID: 28785037 PMCID: PMC5547052 DOI: 10.1038/s41598-017-07965-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 07/03/2017] [Indexed: 01/07/2023] Open
Abstract
The purpose of this study has been the investigation of the effect of novel peptide hydroxyproline-GQDGLAGPK (Hyp-GQDGLAGPK) in desiccation stress-induced dry eye mouse model and compared medicines for dry eye disease including cyclosporine, diquafosol and sodium hyaluronate. Seventy eight NOD.B10.H2b mice were injected with scopolamine and exposed to an air draft for 10 days, and then the mice were treated with normal saline (n = 13), 1% Hyp-GQDGLAGPK (n = 13), 0.05% cyclosporine (n = 13), 3% diquafosol (n = 13), and 0.1% hyaluronate (n = 13) for 10 days. Thirteen mice were used for histopathologic analysis at DS 10d. The desiccation stress significantly decreased tear production, but the topical treatment of Hyp-GQDGLAGPK recovered to the baseline levels, which was similar to cyclosporine and diquafosol. In addition, Hyp-GQDGLAGPK improved facilitating epithelium stabilization including the corneal irregularity score, fluorescein score and detachment of the corneal epithelium. These improvements in stabilization of the corneal epithelium was superior to that in the cyclosporine and sodium hyaluronate groups. Furthermore, desiccation stress markedly induced expression of autoimmune inflammation-related factors in the lacrimal glands, but it was significantly suppressed by Hyp-GQDGLAGPK treatment. Overall, we found that novel peptide Hyp-GQDGLAGPK has multi-functional effects such as stabilizing the tear film and inhibiting inflammation.
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Affiliation(s)
- Hyesook Lee
- T2B infrastructure center for ocular diseases, Inje University Busan Paik Hospital, 75 Bokji-ro, Busanjin-gu, Busan, 47392, Republic of Korea
| | - Chae Eun Kim
- T2B infrastructure center for ocular diseases, Inje University Busan Paik Hospital, 75 Bokji-ro, Busanjin-gu, Busan, 47392, Republic of Korea.,Department of Ophthalmology, Inje University College of Medicine, 75 Bokji-ro, Busanjin-gu, Busan, 47392, Republic of Korea
| | - Byul-Nim Ahn
- T2B infrastructure center for ocular diseases, Inje University Busan Paik Hospital, 75 Bokji-ro, Busanjin-gu, Busan, 47392, Republic of Korea
| | - Jaewook Yang
- T2B infrastructure center for ocular diseases, Inje University Busan Paik Hospital, 75 Bokji-ro, Busanjin-gu, Busan, 47392, Republic of Korea. .,Department of Ophthalmology, Inje University College of Medicine, 75 Bokji-ro, Busanjin-gu, Busan, 47392, Republic of Korea. .,Eyebio Korea, F 1010, 197 inje-ro, Gimhae-si, Gyeongsangnam-do, 50834, Republic of Korea.
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18
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Abstract
Epidemiological studies have indicated that smoking is a pivotal risk factor for the progression of several chronic diseases. Nicotine, the addictive component of cigarettes, has powerful pathophysiological properties in the body. Although the effects of cigarette smoking on corneal re-epithelialization have been studied, the effects of nicotine on corneal wound healing-related neovascularization and fibrosis have not been fully demonstrated. The aim of this study was to evaluate the effects of chronic administration of nicotine on corneal wound healing following acute insult induced by an alkali burn. BALB/C female mice randomly received either vehicle (2% saccharin) or nicotine (100 or 200 μg/ml in 2% saccharin) in drinking water ad libitum. After 1 week, animals were re-randomized and the experimental group was subjected to a corneal alkali burn, and then nicotine was administered until day 14 after the alkali burn. A corneal alkali burn model was generated by placing a piece of 2 mm-diameter filter paper soaked in 1N NaOH on the right eye. Histopathological analysis and the expression level of the pro-angiogenic genes vascular endothelial growth factor (VEGF) and matrix metalloproteinase-9 (MMP9) revealed that chronic nicotine administration enhanced alkali burn-induced corneal neovascularization. Furthermore, the mRNA expression of the pro-fibrogenic factors α-smooth muscle actin (αSMA), transforming growth factor-β (TGF-β), and collagen α1 (Col1) was enhanced in the high-concentration nicotine-treated group compared with the vehicle group after corneal injury. Immunohistochemical analysis also showed that the αSMA-positive area was increased in chronic nicotine-treated mice after corneal alkali burn. An in vitro assay found that expression of the α3, α7, and β1 nicotinic acetylcholine receptor (nAChR) subunits was significantly increased by chemical injury in human corneal fibroblast cells. Moreover, alkali-induced fibrogenic gene expression and proliferation of fibroblast cells were further increased by treatment with nicotine and cotinine. The proliferation of such cells induced by treatment of nicotine and cotinine was reduced by inhibition of the PI3K and PKC pathways using specific inhibitors. In conclusion, chronic administration of nicotine accelerated the angiogenic and fibrogenic healing processes in alkali-burned corneal tissue.
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Affiliation(s)
- Jong Won Kim
- Biosafety Research Institute and Laboratory of Pathology (BK21 Plus Program), College of Veterinary Medicine, Chonbuk National University, Iksan, Republic of Korea
| | - Chae Woong Lim
- Biosafety Research Institute and Laboratory of Pathology (BK21 Plus Program), College of Veterinary Medicine, Chonbuk National University, Iksan, Republic of Korea
| | - Bumseok Kim
- Biosafety Research Institute and Laboratory of Pathology (BK21 Plus Program), College of Veterinary Medicine, Chonbuk National University, Iksan, Republic of Korea
- * E-mail:
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Liu X, Wang S, Wang X, Liang J, Zhang Y. Recent drug therapies for corneal neovascularization. Chem Biol Drug Des 2017; 90:653-664. [PMID: 28489275 DOI: 10.1111/cbdd.13018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 04/17/2017] [Accepted: 04/25/2017] [Indexed: 12/18/2022]
Affiliation(s)
- Xinyao Liu
- Department of Ophthalmology; The 2nd Teaching Hospital of Jilin University; Changchun Jilin China
| | - Shurong Wang
- Department of Ophthalmology; The 2nd Teaching Hospital of Jilin University; Changchun Jilin China
| | - Xuanzhong Wang
- Department of Ophthalmology; The 2nd Teaching Hospital of Jilin University; Changchun Jilin China
| | - Jiaming Liang
- Department of Ophthalmology; The 2nd Teaching Hospital of Jilin University; Changchun Jilin China
| | - Yan Zhang
- Department of Ophthalmology; The 2nd Teaching Hospital of Jilin University; Changchun Jilin China
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Nass N, Trau S, Paulsen F, Kaiser D, Kalinski T, Sel S. The receptor for advanced glycation end products RAGE is involved in corneal healing. Ann Anat 2017; 211:13-20. [DOI: 10.1016/j.aanat.2017.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 01/09/2017] [Accepted: 01/12/2017] [Indexed: 01/11/2023]
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Abstract
The study aimed to investigate the effects of silk fibroin in a mouse model of dry eye. The experimental dry eye mouse model was developed using more than twelve-weeks-old NOD.B10.H2b mice exposing them to 30–40% ambient humidity and injecting them with scopolamine hydrobromide for 10 days. Tear production and corneal irregularity score were measured by the instillation of phosphate buffered saline or silk fibroin. Corneal detachment and conjunctival goblet cell density were observed by hematoxylin and eosin or periodic acid Schiff staining in the cornea or conjunctiva. The expression of inflammatory markers was detected by immunohistochemistry in the lacrimal gland. The silk group tear production was increased, and corneal smoothness was improved. The corneal epithelial cells and conjunctival goblet cells were recovered in the silk groups. The expression of inflammatory factors was inhibited in the lacrimal gland of the silk group. These results show that silk fibroin improved the cornea, conjunctiva, and lacrimal gland in the mouse model of dry eye. These findings suggest that silk fibroin has anti-inflammatory effects in the experimental models of dry eye.
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Kim JL, Lee HS, Lee Y, Kang MS, Lee SJ, Yang JW. Effect of Porcine Chondrocyte-Derived Extracellular Membrane (CDECM) on Postoperative Wound Healing in an Experimental Rabbit Model of Glaucoma Filtration Surgery. Curr Eye Res 2017; 42:897-907. [PMID: 28085505 DOI: 10.1080/02713683.2016.1257727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
PURPOSE We investigated whether a chondrocyte-derived extracellular membrane (CDECM) could reduce postoperative scar formation in an experimental rabbit model of glaucoma filtration surgery. METHODS Thirty-six male New Zealand white rabbits underwent experimental glaucoma filtration surgeries on the right eye and were randomly divided into the following two treatment groups: the CDECM group was treated with subconjunctival injections of 0.1ml CDECM (25 mg/ml; n = 18 eyes), and the operation (OP) group was treated with subconjunctival injections of 0.1 ml balanced salt solution (n = 18 eyes). The left eyes were used as controls (n = 36 eyes). The effects of the CDECM on the experimental rabbit model were investigated using histopathological, immunochemical analyses and Western blotting analyses of the inflammation, fibrosis and angiogenesis. RESULTS On the 14th postoperative day, the eyes of the CDECM group displayed reduced vascularity and fibrosis compared with the OP group. The vascular endothelial growth factor (VEGF), CD31 and TNFβ immunostaining were also reduced in the CDECM group. The level of TNFα mRNA was increased in the OP group. On the 28th postoperative day, the eyes of the CDECM group also exhibited reduced vascularity and less inflammation and fibrosis than those of the OP group. The expressions of VEGF, CD31, macrophage, TNFβ and NF-κB p65 were also decreased in the CDECM group. The levels of TNFα mRNA significantly differ, and the level of matrix metallopeptidase 9 (MMP9) was increased in the OP group. To determine the specific upstream pathway that was associated with NF-κB activation due to glaucoma filtration surgery, we measured Akt, PKCs and MAPKs signaling. The phosphorylation of p38 MAPK was increased in the OP group, whereas this expression was decreased by CDECM treatment. CONCLUSIONS CDECM seems to suppress angiogenesis, inflammation and fibrosis, which were related to wound healing in the experimental rabbit model of glaucoma filtration surgery. This effect, resulting from the inhibition of NF-κB expression, may be the blocking of the p38 MAPK signaling pathway.
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Affiliation(s)
- Jung Lim Kim
- a Department of Ophthalmology , Inje University College of Medicine , Busan , Republic of Korea.,b Ocular Neovascular Disease Research Center, Inje University Busan Paik Hospital , Busan , Republic of Korea
| | - Hye Sook Lee
- b Ocular Neovascular Disease Research Center, Inje University Busan Paik Hospital , Busan , Republic of Korea
| | - Yoonjin Lee
- b Ocular Neovascular Disease Research Center, Inje University Busan Paik Hospital , Busan , Republic of Korea
| | - Mi Seon Kang
- c Department of Pathology , Inje University College of Medicine , Busan , Republic of Korea
| | - Sang Joon Lee
- d Department of Ophthalmology , Kosin University College of Medicine , Busan , Republic of Korea
| | - Jae Wook Yang
- a Department of Ophthalmology , Inje University College of Medicine , Busan , Republic of Korea.,b Ocular Neovascular Disease Research Center, Inje University Busan Paik Hospital , Busan , Republic of Korea
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