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Galindo-Cabello N, Sobas-Abad EM, Lapresa R, Agulla J, Almeida Á, López A, Pastor JC, Pastor-Idoate S, Usategui-Martín R. The TP53 Arg72Pro polymorphism predicts visual and neurodegenerative outcomes in retinal detachment. Cell Death Dis 2025; 16:415. [PMID: 40419469 DOI: 10.1038/s41419-025-07739-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2025] [Revised: 05/03/2025] [Accepted: 05/15/2025] [Indexed: 05/28/2025]
Abstract
Retinal detachment (RD) separates the retina from the retinal epithelium, causing photoreceptor apoptosis and irreversible vision loss. Even with successful surgical reattachment, complete visual recovery is not guaranteed. The TP53 Arg72Pro polymorphism, implicated in apoptosis, has emerged as a potential predictor of RD outcomes. We investigated the impact of the Arg72Pro polymorphism on retinal neurodegeneration and functional recovery in patients. The underlying mechanisms were analyzed in a humanized TP53 Arg72Pro RD mouse model. In a cohort of 180 patients, carriers of the Pro allele exhibited decreased apoptotic gene expression and improved visual recovery. Complementary findings in mice revealed that the Pro variant preserved photoreceptor integrity and reduced apoptosis rates following RD. Our findings highlight the potential of this TP53 polymorphism as a biomarker for RD outcomes and a tool for tailoring therapies. This study underscores the importance of integrating genetic profiling into personalized medicine approaches to improve recovery of RD patients' visual outcomes.
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Affiliation(s)
- Nadia Galindo-Cabello
- Unit of Excellence Institute of Applied Ophthalmobiology (IOBA), University of Valladolid, Valladolid, Spain
- Department of Cell Biology, Genetics, Histology and Pharmacology, Faculty of Medicine, University of Valladolid, Valladolid, Spain
- Network of Inflammatory Diseases- Networks of Cooperative Research Oriented to Health Results (RICORS), Carlos III National Institute of Health, Madrid, Spain
| | - Eva M Sobas-Abad
- Unit of Excellence Institute of Applied Ophthalmobiology (IOBA), University of Valladolid, Valladolid, Spain
- Network of Inflammatory Diseases- Networks of Cooperative Research Oriented to Health Results (RICORS), Carlos III National Institute of Health, Madrid, Spain
- School of Nursing, University of Valladolid, Valladolid, Spain
| | - Rebeca Lapresa
- Institute of Biomedical Research of Salamanca (IBSAL), University Hospital of Salamanca, University of Salamanca, CSIC, Salamanca, Spain
- Institute of Functional Biology and Genomics, CSIC, University of Salamanca, Salamanca, Spain
| | - Jesús Agulla
- Institute of Biomedical Research of Salamanca (IBSAL), University Hospital of Salamanca, University of Salamanca, CSIC, Salamanca, Spain
- Institute of Functional Biology and Genomics, CSIC, University of Salamanca, Salamanca, Spain
| | - Ángeles Almeida
- Institute of Biomedical Research of Salamanca (IBSAL), University Hospital of Salamanca, University of Salamanca, CSIC, Salamanca, Spain
- Institute of Functional Biology and Genomics, CSIC, University of Salamanca, Salamanca, Spain
| | - Antonio López
- Unit of Excellence Institute of Applied Ophthalmobiology (IOBA), University of Valladolid, Valladolid, Spain
| | - José Carlos Pastor
- Unit of Excellence Institute of Applied Ophthalmobiology (IOBA), University of Valladolid, Valladolid, Spain
| | - Salvador Pastor-Idoate
- Unit of Excellence Institute of Applied Ophthalmobiology (IOBA), University of Valladolid, Valladolid, Spain.
- Network of Inflammatory Diseases- Networks of Cooperative Research Oriented to Health Results (RICORS), Carlos III National Institute of Health, Madrid, Spain.
- Department of Ophthalmology, University Clinical Hospital of Valladolid, Valladolid, Spain.
| | - Ricardo Usategui-Martín
- Unit of Excellence Institute of Applied Ophthalmobiology (IOBA), University of Valladolid, Valladolid, Spain.
- Department of Cell Biology, Genetics, Histology and Pharmacology, Faculty of Medicine, University of Valladolid, Valladolid, Spain.
- Network of Inflammatory Diseases- Networks of Cooperative Research Oriented to Health Results (RICORS), Carlos III National Institute of Health, Madrid, Spain.
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Havlik J, Lada M, Tesar J, Kratky V, Sin M. Vitreous proteomics in rhegmatogenous retinal detachment and proliferative vitreoretinopathy. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2025. [PMID: 40371444 DOI: 10.5507/bp.2025.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2025] Open
Abstract
Rhegmatogenous retinal detachment (RRD) is a serious ophthalmic condition that, if untreated, can result in significant vision loss. Proliferative vitreoretinopathy (PVR) often complicates RRD and is the leading cause of surgical failure. Proteomic analysis of the vitreous has emerged as a powerful tool for elucidating the molecular mechanisms underlying RRD and PVR. This article reviews proteomic findings related to these conditions. A comprehensive literature search on PubMed was conducted, focusing on studies of vitreous proteomics in RRD and PVR published between 1988 and August 2024. Relevant findings on protein expression, metabolic pathways, and therapeutic targets were synthesized. Proteomic studies reveal significant alterations in photoreceptor-specific proteins, such as rhodopsin and Monocyte Chemoattractant Protein-1 (MCP-1), associated with apoptosis and inflammation during RRD. Metabolic dysregulation is evidenced by changes in glycolytic enzymes and antioxidants, including downregulation of peroxiredoxin-2 and ascorbic acid, suggesting impaired energy production and oxidative stress. Elevated cytokines, complement proteins, and matrix metalloproteinases highlight the role of inflammation and extracellular matrix remodelling in disease progression. Cytokine expression in PVR demonstrates distinct temporal patterns, with early stages marked by T-cell activation and mTOR pathway-related cytokines, and advanced stages characterized by monocyte chemoattractants associated with chronic inflammation. Currently, the potential of pharmacologic interventions in RRD and PVR remains limited. In contrast, proteomics offers critical insights into molecular mechanisms, identifying potential biomarkers and therapeutic pathways. The adoption of single-molecule and top-down proteomics, along with the integration of advanced technologies with artificial intelligence and bioinformatics, holds promise for accelerating progress toward precision medicine. These developments represent a promising avenue for future research and clinical application.
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Affiliation(s)
- Jan Havlik
- Department of Ophthalmology, Military University Hospital Prague, Prague, Czech Republic
- 1st Faculty of Medicine of Charles University, Prague, Czech Republic
| | - Martin Lada
- Department of Ophthalmology, Military University Hospital Prague, Prague, Czech Republic
| | - Jan Tesar
- Department of Ophthalmology, Military University Hospital Prague, Prague, Czech Republic
- 1st Faculty of Medicine of Charles University, Prague, Czech Republic
| | - Vladimir Kratky
- Department of Ophthalmology, Military University Hospital Prague, Prague, Czech Republic
- Department of Ophthalmology, School of Medicine, Queen's University, Kingston, Canada
| | - Martin Sin
- Department of Ophthalmology, Military University Hospital Prague, Prague, Czech Republic
- 1st Faculty of Medicine of Charles University, Prague, Czech Republic
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Sun X, Zhou J, Zeng X, Jiang Y. Relationship Between Chemokine in Aqueous Humor and Primary Glaucoma: A Meta-Analysis. Am J Ophthalmol 2025; 273:1-12. [PMID: 39922477 DOI: 10.1016/j.ajo.2025.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2024] [Revised: 01/31/2025] [Accepted: 02/02/2025] [Indexed: 02/10/2025]
Abstract
OBJECTIVE Glaucoma is a group of diseases characterized by optic nerve damage and corresponding visual field loss as clinical changes. A close relationship has been identified between chemokine in aqueous humor and primary glaucoma; however, this association remains controversial. DESIGN Systematic review and meta-analysis. METHODS The Web of Science, Wiley Online Library, PubMed, and Embase databases were searched. The title or abstract search term "glaucoma" was used together with "chemokine". Meta-analysis results were presented as the standardized mean difference (SMD) with a corresponding 95% confidence interval (Cl). RESULTS Twenty studies were included in this meta-analysis, which showed that patients with primary glaucoma had significantly elevated CCL2 (SMD: 0.48, 95% CI [0.11, 0.86]), CCL4 (SMD: 0.74, 95% CI [0.30, 1.17]), CCL5 (SMD: 0.97, 95% CI [0.07, 1.85]), CCL7 (SMD: 2.28, 95% CI [0.86, 3.71]), CXCL8 (SMD: 1.75, 95% CI [1.04, 2.46]), and CXCL10 (SMD: 1.45, 95% CI [0.46, 2.43]) levels in aqueous humor compared to the control group (P < .05). CONCLUSIONS This systematic review is the first to systematically and comprehensively evaluate chemokine levels in aqueous humor of patients with primary glaucoma. Clarifying the role of chemokines will be helpful for the treatment of glaucoma.
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Affiliation(s)
- Xin Sun
- Department of Endocrinology and Metabolism, First Affiliated Hospital of Soochow University (X.S.), Suzhou, Jiangsu, China
| | - Jing Zhou
- Department of Ophthalmology, Fourth People`s Hospital of Shenyang (J.Z, X.Z, Y.J.), Shenyang, Liaoning, China
| | - Xiandong Zeng
- Department of Ophthalmology, Fourth People`s Hospital of Shenyang (J.Z, X.Z, Y.J.), Shenyang, Liaoning, China.
| | - Yanhua Jiang
- Department of Ophthalmology, Fourth People`s Hospital of Shenyang (J.Z, X.Z, Y.J.), Shenyang, Liaoning, China.
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Sugawara R, Usui Y, Saito A, Nezu N, Komatsu H, Tsubota K, Asakage M, Yamakawa N, Wakabayashi Y, Sugimoto M, Kuroda M, Goto H. An Approach to Predict Intraocular Diseases by Machine Learning Based on Vitreous Humor Immune Mediator Profile. Invest Ophthalmol Vis Sci 2025; 66:38. [PMID: 40105820 PMCID: PMC11932427 DOI: 10.1167/iovs.66.3.38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2024] [Accepted: 02/17/2025] [Indexed: 03/20/2025] Open
Abstract
Purpose This study aimed to elucidate whether machine learning algorithms applied to vitreous levels of immune mediators predict the diagnosis of 12 representative intraocular diseases, and identify immune mediators driving the predictive power of machine learning model. Methods Vitreous samples in 522 eyes diagnosed with 12 intraocular diseases were collected, and 28 immune mediators were measured using a cytometric bead array. The significance of each immune mediator was determined by employing five machine learning algorithms. Stratified k-fold cross-validation was performed to divide the dataset into training and test sets. The algorithms were assessed by analyzing precision, recall, accuracy, F-score, area under the receiver operating characteristics curve, area under the precision-recall curve, and feature importance. Results Of the five machine learning models, random forest attained the maximum accuracy in the classification of 12 intraocular diseases in a multi-class setting. The random forest prediction models for vitreoretinal lymphoma, endophthalmitis, uveal melanoma, rhegmatogenous retinal detachment, and acute retinal necrosis demonstrated superior classification accuracy, precision, and recall. The top three important immune mediators for predicting vitreoretinal lymphoma were IL-10, granzyme A, and IL-6; those for endophthalmitis were IL-6, G-CSF, and IL-8; and those for uveal melanoma were RANTES, IL-8 and bFGF. Conclusions The random forest algorithm effectively classified 28 immune mediators in the vitreous to accurately predict the diagnosis of vitreoretinal lymphoma, endophthalmitis, and uveal melanoma among 12 representative intraocular diseases. In summary, the results of this study enhance our understanding of potential new biomarkers that may contribute to elucidating the pathophysiology of intraocular diseases in the future.
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Affiliation(s)
- Risa Sugawara
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
| | - Yoshihiko Usui
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
| | - Akira Saito
- Department of AI Applied Quantitative Clinical Science, Tokyo Medical University, Tokyo, Japan
| | - Naoya Nezu
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
| | - Hiroyuki Komatsu
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
| | - Kinya Tsubota
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
| | - Masaki Asakage
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
| | - Naoyuki Yamakawa
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
| | | | - Masahiro Sugimoto
- Research and Development Center for Minimally Invasive Therapies, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Hiroshi Goto
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
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Campbell GP, Amin D, Hsieh K, Hussey GS, St Leger AJ, Gross JM, Badylak SF, Kuwajima T. Immunomodulation by the combination of statin and matrix-bound nanovesicle enhances optic nerve regeneration. NPJ Regen Med 2024; 9:31. [PMID: 39461953 PMCID: PMC11513974 DOI: 10.1038/s41536-024-00374-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 10/06/2024] [Indexed: 10/28/2024] Open
Abstract
Modulating inflammation is critical to enhance nerve regeneration after injury. However, clinically applicable regenerative therapies that modulate inflammation have not yet been established. Here, we demonstrate synergistic effects of the combination of an HMG-CoA reductase inhibitor, statin/fluvastatin and critical components of the extracellular matrix, Matrix-Bound Nanovesicles (MBV) to enhance axon regeneration and neuroprotection after mouse optic nerve injury. Mechanistically, co-intravitreal injections of fluvastatin and MBV robustly promote infiltration of monocytes and neutrophils, which lead to RGC protection and axon regeneration. Furthermore, monocyte infiltration is triggered by elevated expression of CCL2, a chemokine, in the superficial layer of the retina after treatment with a combination of fluvastatin and MBV or IL-33, a cytokine contained within MBV. Finally, this therapy can be further combined with AAV-based gene therapy blocking anti-regenerative pathways in RGCs to extend regenerated axons. These data highlight novel molecular insights into the development of immunomodulatory regenerative therapy.
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Affiliation(s)
- Gregory P Campbell
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15219, USA
- The Louis J. Fox Center for Vision Restoration, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15219, USA
| | - Dwarkesh Amin
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15219, USA
- The Louis J. Fox Center for Vision Restoration, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15219, USA
| | - Kristin Hsieh
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15219, USA
- The Louis J. Fox Center for Vision Restoration, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15219, USA
| | - George S Hussey
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, 15219, USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, 15219, USA
| | - Anthony J St Leger
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15219, USA
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Jeffrey M Gross
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15219, USA
- The Louis J. Fox Center for Vision Restoration, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15219, USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA
- Department of Developmental Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, 15219, USA
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, 15219, USA
| | - Takaaki Kuwajima
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15219, USA.
- The Louis J. Fox Center for Vision Restoration, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15219, USA.
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6
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Sorrentino FS, Gardini L, Culiersi C, Fontana L, Musa M, D’Esposito F, Surico PL, Gagliano C, Zeppieri M. Nano-Based Drug Approaches to Proliferative Vitreoretinopathy Instead of Standard Vitreoretinal Surgery. Int J Mol Sci 2024; 25:8720. [PMID: 39201407 PMCID: PMC11354910 DOI: 10.3390/ijms25168720] [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] [Received: 07/09/2024] [Revised: 08/02/2024] [Accepted: 08/08/2024] [Indexed: 09/02/2024] Open
Abstract
Proliferative vitreoretinopathy (PVR) has traditionally been managed with vitreoretinal surgery. Although there have been several recent innovations in this surgery to make the retinal approach as uninvasive as possible, the outcomes remain unsatisfactory. Significant complications remain and the complexity of the surgical approach is challenging. The focus of this review was to investigate and discuss the effectiveness of nanomedicine, featuring a wide range of drugs and molecules, as a novel potential treatment for PVR. To date, ocular drug delivery remains a significant issue due to the physiological and anatomical barriers, dynamic or static, which prevent the entry of exogenous molecules. We tried to summarize the nanotechnology-based ophthalmic drugs and new nanoparticles currently under research, with the intention of tackling the onset and development of PVR. The purpose of this review was to thoroughly and analytically examine and assess the potential of nano-based techniques as innovative strategies to treat proliferative vitreoretinopathy (PVR). This study aimed to emphasize the breakthroughs in nanomedicine that provide promising therapeutic options to enhance the results of vitreoretinal surgery and halt disease progression, considering the complexity and difficulty of PVR treatment. The future directions of the nanoparticles and nanotherapies applied to PVR highlight the importance of investing in the development of better designs and novel ophthalmic formulations in order to accomplish a mini-invasive ocular approach, replacing the standard-of-care vitreoretinal surgery.
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Affiliation(s)
| | - Lorenzo Gardini
- Department of Surgical Sciences, Unit of Ophthalmology, Ospedale Maggiore, 40100 Bologna, Italy; (F.S.S.)
| | - Carola Culiersi
- Department of Surgical Sciences, Unit of Ophthalmology, Ospedale Maggiore, 40100 Bologna, Italy; (F.S.S.)
| | - Luigi Fontana
- Department of Surgical Sciences, Ophthalmology Unit, Alma Mater Studiorum University of Bologna, IRCCS Azienda Ospedaliero-Universitaria Bologna, 40100 Bologna, Italy
| | - Mutali Musa
- Department of Optometry, University of Benin, Benin City 300238, Edo State, Nigeria
- Africa Eye Laser Centre, Km 7, Benin 300105, Nigeria
| | - Fabiana D’Esposito
- Imperial College Ophthalmic Research Group (ICORG) Unit, Imperial College, 153-173 Marylebone Rd., London NW15QH, UK
- Department of Neurosciences, Reproductive Sciences and Dentistry, University of Naples Federico II, Via Pansini 5, 80131 Napoli, Italy
| | - Pier Luigi Surico
- Schepens Eye Research Institute of Mass Eye and Ear, Harvard Medical School, Boston, MA 02114, USA
- Department of Ophthalmology, Campus Bio-Medico University, 00128 Rome, Italy
| | - Caterina Gagliano
- Department of Medicine and Surgery, University of Enna “Kore”, Piazza dell’Università, 94100 Enna, Italy
- Eye Clinic, Catania University, San Marco Hospital, Viale Carlo Azeglio Ciampi, 95121 Catania, Italy
| | - Marco Zeppieri
- Department of Ophthalmology, University Hospital of Udine, 33100 Udine, Italy
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Tachibana T, Notomi S, Funatsu J, Fujiwara K, Nakatake S, Murakami Y, Nakao S, Kanamoto T, Ikeda Y, Ishibashi T, Sonoda KH, Hisatomi T. Intraocular kinetics of pathological ATP after photoreceptor damage in rhegmatogenous retinal detachment. Jpn J Ophthalmol 2024:10.1007/s10384-024-01087-x. [PMID: 39060674 DOI: 10.1007/s10384-024-01087-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 05/29/2024] [Indexed: 07/28/2024]
Abstract
PURPOSE Extracellular Adenosine triphosphate (ATP) released by dying cells may cause a secondary cell death in neighboring cells in retinal degeneration. We investigated intraocular ATP kinetics to gain mechanical insights into the pathology in rhegmatogenous retinal detachment (RRD). STUDY DESIGN Retrospective clinical study. METHODS Vitreous or subretinal fluids (SRF) were obtained from patients with RRD (n=75), macular hole (MH; n=20), and epiretinal membrane (ERM; n=35) during vitrectomy. ATP levels in those samples were measured by luciferase assay. RESULTS Mean ATP levels in the vitreous from RRD patients were significantly higher compared to those from MH and ERM patients (2.3 and 0.3 nM, respectively. P<0.01). Mean ATP levels in the SRF from RRD (11.7 nM) were higher than those in the vitreous from RRD (P<0.01). Mean ATP levels in the vitreous with short durations (1-8 days) of RRD were higher compared to those with long durations (>8 days) (3.2 and 1.4 nM, respectively. P<0.05). Similarly, ATP in SRF with short durations were higher than those with long durations (23.8 and 3.6 nM, respectively. P<0.05). Furthermore, the concentrations of ectonucleoside triphosphate diphosphohydrolase-1 (ENTPD1), a major ATP degradative enzyme, in the vitreous from RRD were higher than those from MH/ERM (1.2 and 0.2 ng/ml, respectively. P<0.01). ENTPD1 expression was localized in the cytoplasm of CD11b-positive infiltrating cells in the vitreous and retinal cells. CONCLUSION ATP increased in the vitreous and SRF in RRD and decreased over time with an upregulation of ENTPD1. The kinetics indicate the pathological mechanism of the excessive extracellular ATP after RRD.
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Affiliation(s)
- Takashi Tachibana
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Ohshima Eye Hospital, Fukuoka, Japan
| | - Shoji Notomi
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Jun Funatsu
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kohta Fujiwara
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shunji Nakatake
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yusuke Murakami
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shintaro Nakao
- Department of Ophthalmology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | | | - Yasuhiro Ikeda
- Department of Ophthalmology, Faculty of Medicine, Miyazaki University, Miyazaki, Japan
| | - Tatsuro Ishibashi
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Koh-Hei Sonoda
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Toshio Hisatomi
- Department of Ophthalmology, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyouin, Chikushino, Fukuoka, 818-8502, Japan.
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8
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Zhu C, Cheng Y, Tang Y, Wu H, Liu Z. Changes of aqueous humor cytokine profiles of patients with high intraocular pressure after PPV for retinal detachment. Sci Rep 2024; 14:13044. [PMID: 38844441 PMCID: PMC11156964 DOI: 10.1038/s41598-024-61913-7] [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] [Received: 08/23/2023] [Accepted: 05/10/2024] [Indexed: 06/09/2024] Open
Abstract
High intraocular pressure (IOP) is one of the early complications after pars plana vitrectomy (PPV), which may cause glaucoma and poor visual prognosis secondary to surgery. Proliferative vitreoretinopathy (PVR) is one of the complications of retinal detachment (RD) and is the main reason for the poor prognosis, which is related to different kinds of cytokines. It's essential for the basic mechanism to analyze the relative aqueous humor cytokine profiles with IOP after PPV for RD. In this study, we have collected the aqueous humor of 16 patients and qualified 27 cytokines using Luminex and compared biomarkers with the high IOP group and the normal group. As a result, the concentrations of VEGF, IL-6, FGF2, and G-CSF upregulated significantly (P < 0.05), while VEGFR2 downregulated significantly (P < 0.05) in the high IOP group. IL-6 was positively correlated with high IOP (r = 0.561, P = 0.041). Meanwhile, the concentrations of IL-6 (r = 0.543, P = 0.03), IL-5 (r = 0.576, P = 0.019), IL-15 (r = 0.614, P = 0.011), IL-4 (r = 0.517, P = 0.04), ICAM-1 (r = 0.611, P = 0.012), and G-CSF (r = 0.636, P = 0.008) were significantly associated with preoperative PVR classification, and the aqueous humor levels of IL-4 (r = 0.567, P = 0.022), HGF (r = 0.701, P = 0.005), and MCP-1 (r = 0.565, P = 0.035) are significant relative to laser points. Hence, cytokines might potentially be the therapeutic target of high IOP after PPV.
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Affiliation(s)
- Chenchen Zhu
- Eye Center of Second Hospital, Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, 130041, China
| | - Yan Cheng
- Eye Center of Second Hospital, Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, 130041, China
| | - Yi Tang
- Eye Center of Second Hospital, Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, 130041, China
| | - Hong Wu
- Eye Center of Second Hospital, Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, 130041, China.
| | - Zaoxia Liu
- Eye Center of Second Hospital, Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, 130041, China.
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9
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Wu LH, Cheng YW, Lin FL, Hsu KC, Wang MH, Yen JL, Wang TJ, Lin TE, Liu YC, Huang WJ, Hsiao G. A novel HDAC8 inhibitor H7E exerts retinoprotective effects against glaucomatous injury via ameliorating aberrant Müller glia activation and oxidative stress. Biomed Pharmacother 2024; 174:116538. [PMID: 38579401 DOI: 10.1016/j.biopha.2024.116538] [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] [Received: 01/05/2024] [Revised: 03/18/2024] [Accepted: 03/29/2024] [Indexed: 04/07/2024] Open
Abstract
Glaucoma is considered a neurodegenerative disease characterized by progressive visual field defects that may lead to blindness. Although controlling intraocular pressure (IOP) is the mainstay of glaucoma treatment, some glaucoma patients have unmet needs due to unclear pathogenic mechanisms. Recently, there has been growing evidence that neuroinflammation is a potential target for the development of novel antiglaucoma agents. In this study, we investigated the protective effects and cellular mechanisms of H7E, a novel small molecule inhibits HDAC8, using in vitro and in vivo glaucoma-like models. Importantly, H7E mitigated extracellular MMP-9 activity and MCP-1 levels in glutamate- or S100B-stimulated reactive Müller glia. In addition, H7E inhibited the upregulation of inflammation- and proliferation-related signaling pathways, particularly the ERK and JNK MAPK pathways. Under conditions of oxidative damage, H7E prevents retinal cell death and reduces extracellular glutamate released from stressed Müller glia. In a mouse model of NMDA-induced retinal degeneration, H7E alleviated functional and structural defects within the inner retina as assessed by electroretinography and optical coherence tomography. Our results demonstrated that the newly identified compound H7E protects against glaucoma damage by specifically targeting HDAC8 activity in the retina. This protective effect is attributed to the inhibition of Müller glial activation and the prevention of retinal cell death caused by oxidative stress.
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Affiliation(s)
- Liang-Huan Wu
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, 250 Wu-Hsing St., Taipei 110, Taiwan.
| | - Yu-Wen Cheng
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, 250 Wu-Hsing St., Taipei 110, Taiwan; Department of Pharmaceutical Sciences, School of Pharmacy, College of Pharmacy, Taipei Medical University, 250 Wu-Hsing St., Taipei 110, Taiwan.
| | - Fan-Li Lin
- Department of Pharmacology, School of Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Rd., Kaohsiung 807, Taiwan.
| | - Kai-Cheng Hsu
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, 250 Wu-Hsing St., Taipei 110, Taiwan; Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, 301 Yuantong Rd., New Taipei 235, Taiwan.
| | - Mong-Heng Wang
- Independent Scholar, 3466 Rhodes Hill Drive, Martinez, GA 30907, USA.
| | - Jing-Lun Yen
- Graduate Institute of Medical Sciences and Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, 250 Wu-Hsing St., Taipei 110, Taiwan.
| | - Tsung-Jen Wang
- Department of Ophthalmology, Taipei Medical University Hospital, 252 Wu-Hsing St., Taipei 110, Taiwan; Department of Ophthalmology, School of Medicine, College of Medicine, Taipei Medical University, 250 Wu-Hsing St., Taipei 110, Taiwan.
| | - Tony Eight Lin
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, 301 Yuantong Rd., New Taipei 235, Taiwan.
| | - Yi-Chien Liu
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, 250 Wu-Hsing St., Taipei 110, Taiwan.
| | - Wei-Jan Huang
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, 250 Wu-Hsing St., Taipei 110, Taiwan; Department of Pharmaceutical Sciences, School of Pharmacy, College of Pharmacy, Taipei Medical University, 250 Wu-Hsing St., Taipei 110, Taiwan.
| | - George Hsiao
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, 250 Wu-Hsing St., Taipei 110, Taiwan; Graduate Institute of Medical Sciences and Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, 250 Wu-Hsing St., Taipei 110, Taiwan; Department of Ophthalmology, School of Medicine, College of Medicine, Taipei Medical University, 250 Wu-Hsing St., Taipei 110, Taiwan.
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10
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Ferro Desideri L, Artemiev D, Zandi S, Zinkernagel MS, Anguita R. Proliferative vitreoretinopathy: an update on the current and emerging treatment options. Graefes Arch Clin Exp Ophthalmol 2024; 262:679-687. [PMID: 37843566 PMCID: PMC10907475 DOI: 10.1007/s00417-023-06264-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 08/07/2023] [Accepted: 09/08/2023] [Indexed: 10/17/2023] Open
Abstract
Proliferative vitreoretinopathy (PVR) remains the main cause of failure in retinal detachment (RD) surgery and a demanding challenge for vitreoretinal surgeons. Despite the large improvements in surgical techniques and a better understanding of PVR pathogenesis in the last years, satisfactory anatomical and visual outcomes have not been provided yet. For this reason, several different adjunctive pharmacological agents have been investigated in combination with surgery. In this review, we analyze the current and emerging adjunctive treatment options for the management of PVR and we discuss their possible clinical application and beneficial role in this subgroup of patients.
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Affiliation(s)
- Lorenzo Ferro Desideri
- Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 15, CH-3010, Bern, Switzerland.
- Department for BioMedical Research, University of Bern, Murtenstrasse 24, CH-3008, Bern, Switzerland.
- Bern Photographic Reading Center, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
| | - Dmitri Artemiev
- Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 15, CH-3010, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Murtenstrasse 24, CH-3008, Bern, Switzerland
| | - Souska Zandi
- Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 15, CH-3010, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Murtenstrasse 24, CH-3008, Bern, Switzerland
- Bern Photographic Reading Center, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Martin S Zinkernagel
- Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 15, CH-3010, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Murtenstrasse 24, CH-3008, Bern, Switzerland
- Bern Photographic Reading Center, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Rodrigo Anguita
- Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 15, CH-3010, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Murtenstrasse 24, CH-3008, Bern, Switzerland
- Moorfields Eye Hospital NHS Foundation Trust, London, UK
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11
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Lee D, Tomita Y, Shinojima A, Ban N, Yamaguchi S, Nishioka K, Negishi K, Yoshino J, Kurihara T. Nicotinamide mononucleotide, a potential future treatment in ocular diseases. Graefes Arch Clin Exp Ophthalmol 2024; 262:689-700. [PMID: 37335334 DOI: 10.1007/s00417-023-06118-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 05/10/2023] [Accepted: 05/12/2023] [Indexed: 06/21/2023] Open
Abstract
PURPOSE The burden of ocular diseases has been gradually increasing worldwide. Various factors are suggested for the development and progression of ocular diseases, such as ocular inflammation, oxidative stress, and complex metabolic dysregulation. Thus, managing ocular diseases requires the modulation of pathologic signaling pathways through many mechanisms. Nicotinamide mononucleotide (NMN) is a bioactive molecule naturally found in life forms. NMN is a direct precursor of the important molecule nicotinamide adenine dinucleotide (NAD+), an essential co-enzyme required for enormous cellular functions in most life forms. While the recent experimental evidence of NMN treatment in various metabolic diseases has been well-reviewed, NMN treatment in ocular diseases has not been comprehensively summarized yet. In this regard, we aimed to focus on the therapeutic roles of NMN treatment in various ocular diseases with recent advances. METHODS How we came to our current opinion with a recent summary was described based on our own recent reports as well as a search of the related literature. RESULTS We found that NMN treatment might be available for the prevention of and protection from various experimental ocular diseases, as NMN treatment modulated ocular inflammation, oxidative stress, and complex metabolic dysregulation in murine models for eye diseases such as ischemic retinopathy, corneal defect, glaucoma, and age-related macular degeneration. CONCLUSION Our current review suggests and discusses new modes of actions of NMN for the prevention of and protection from various ocular diseases and can urge future research to obtain more solid evidence on a potential future NMN treatment in ocular diseases at the preclinical stages.
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Affiliation(s)
- Deokho Lee
- Laboratory of Photobiology, Keio University School of Medicine, Tokyo, 160-8582, Japan
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Yohei Tomita
- Laboratory of Photobiology, Keio University School of Medicine, Tokyo, 160-8582, Japan
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Ari Shinojima
- Laboratory of Photobiology, Keio University School of Medicine, Tokyo, 160-8582, Japan
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Norimitsu Ban
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Shintaro Yamaguchi
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Ken Nishioka
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Kazuno Negishi
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Jun Yoshino
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Toshihide Kurihara
- Laboratory of Photobiology, Keio University School of Medicine, Tokyo, 160-8582, Japan.
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, 160-8582, Japan.
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12
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Xu Q, Luo L, Xiang X, Feng Y, Cao Y, Zeng J, Lv H. Comprehensive exploration of hub genes involved in oxidative stress in rhegmatogenous retinal detachment based on bioinformatics analysis. Exp Eye Res 2024; 240:109810. [PMID: 38296106 DOI: 10.1016/j.exer.2024.109810] [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] [Received: 09/01/2023] [Revised: 12/27/2023] [Accepted: 01/26/2024] [Indexed: 02/13/2024]
Abstract
Rhegmatogenous retinal detachment (RRD) is a type of ophthalmologic emergency, if left untreated, the blindness rate approaches 100 %. The RRD patient postoperative recovery of visual function is unsatisfactory, most notably due to photoreceptor death. We conducted to identify the key genes for oxidative stress (OS) in RRD through bioinformatics analysis and clinical validation, thus providing new ideas for the recovery of visual function in RRD patients after surgery. A gene database for RRD was obtained from the Gene Expression Omnibus (GEO) database (GSE28133). Then we screened differentially expressed OS genes (DEOSGs) from the database and assessed the critical pathways in RRD with Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway. Protein-protein interaction (PPI) networks and hub genes among the common DEOSGs were identified. In addition, we collected general information and vitreous fluid from 42 patients with RRD and 22 controls [11 each of epiretinal membrane (EM) and macular hole (MH)], examined the expression levels of proteins encoded by hub genes in vitreous fluid by enzyme-linked immunosorbent assay (ELISA) to further assess the relationship between the ELISA data and the clinical characteristics of patients with RRD. Ten hub genes (CCL2, ICAM1, STAT3, CD4, ITGAM, PTPRC, CCL5, IL18, TLR2, VCAM1) were finally screened out from the dataset. The ELISA results showed that, compared with the control group, patients with RRD: TLR2 and ICAM-1 were significantly elevated, and CCL2 had a tendency to be elevated, but no statistically significant; RRD patients and MH patients compared with EM patients: STAT3 and VCAM-1 were significantly elevated. We found affected eyes of RRD patients compared with healthy eyes: temporal and nasal retinal nerve fiber layer (RNFL) were significantly thickened. By correlation analysis, we found that: STAT3 was negatively correlated with ocular perfusion pressure (OPP); temporal RNFL was not only significantly positively correlated with CCL2, but also negatively correlated with Scotopic b-wave amplitude. These findings help us to further explore the mechanism of RRD development and provide new ideas for finding postoperative visual function recovery.
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Affiliation(s)
- Qin Xu
- Department of Ophthalmology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Linbi Luo
- Department of Ophthalmology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Xiaohong Xiang
- Department of Ophthalmology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Yalin Feng
- Department of Ophthalmology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Yang Cao
- Department of Ophthalmology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Jun Zeng
- Department of Ophthalmology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Hongbin Lv
- Department of Ophthalmology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China.
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13
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Navneet S, Wilson K, Rohrer B. Müller Glial Cells in the Macula: Their Activation and Cell-Cell Interactions in Age-Related Macular Degeneration. Invest Ophthalmol Vis Sci 2024; 65:42. [PMID: 38416457 PMCID: PMC10910558 DOI: 10.1167/iovs.65.2.42] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 02/10/2024] [Indexed: 02/29/2024] Open
Abstract
Müller glia, the main glial cell of the retina, are critical for neuronal and vascular homeostasis in the retina. During age-related macular degeneration (AMD) pathogenesis, Müller glial activation, remodeling, and migrations are reported in the areas of retinal pigment epithelial (RPE) degeneration, photoreceptor loss, and choroidal neovascularization (CNV) lesions. Despite this evidence indicating glial activation localized to the regions of AMD pathogenesis, it is unclear whether these glial responses contribute to AMD pathology or occur merely as a bystander effect. In this review, we summarize how Müller glia are affected in AMD retinas and share a prospect on how Müller glial stress might directly contribute to the pathogenesis of AMD. The goal of this review is to highlight the need for future studies investigating the Müller cell's role in AMD. This may lead to a better understanding of AMD pathology, including the conversion from dry to wet AMD, which has no effective therapy currently and may shed light on drug intolerance and resistance to current treatments.
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Affiliation(s)
- Soumya Navneet
- Department of Ophthalmology, Medical University of South Carolina, Charleston, South Carolina, United States
| | - Kyrie Wilson
- Department of Ophthalmology, Medical University of South Carolina, Charleston, South Carolina, United States
| | - Bärbel Rohrer
- Department of Ophthalmology, Medical University of South Carolina, Charleston, South Carolina, United States
- Department of Neuroscience, Medical University of South Carolina, Charleston, South Carolina, United States
- Ralph H. Johnson VA Medical Center, Division of Research, Charleston, South Carolina, United States
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14
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Fernández-Albarral JA, Ramírez AI, de Hoz R, Matamoros JA, Salobrar-García E, Elvira-Hurtado L, López-Cuenca I, Sánchez-Puebla L, Salazar JJ, Ramírez JM. Glaucoma: from pathogenic mechanisms to retinal glial cell response to damage. Front Cell Neurosci 2024; 18:1354569. [PMID: 38333055 PMCID: PMC10850296 DOI: 10.3389/fncel.2024.1354569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/10/2024] [Indexed: 02/10/2024] Open
Abstract
Glaucoma is a neurodegenerative disease of the retina characterized by the irreversible loss of retinal ganglion cells (RGCs) leading to visual loss. Degeneration of RGCs and loss of their axons, as well as damage and remodeling of the lamina cribrosa are the main events in the pathogenesis of glaucoma. Different molecular pathways are involved in RGC death, which are triggered and exacerbated as a consequence of a number of risk factors such as elevated intraocular pressure (IOP), age, ocular biomechanics, or low ocular perfusion pressure. Increased IOP is one of the most important risk factors associated with this pathology and the only one for which treatment is currently available, nevertheless, on many cases the progression of the disease continues, despite IOP control. Thus, the IOP elevation is not the only trigger of glaucomatous damage, showing the evidence that other factors can induce RGCs death in this pathology, would be involved in the advance of glaucomatous neurodegeneration. The underlying mechanisms driving the neurodegenerative process in glaucoma include ischemia/hypoxia, mitochondrial dysfunction, oxidative stress and neuroinflammation. In glaucoma, like as other neurodegenerative disorders, the immune system is involved and immunoregulation is conducted mainly by glial cells, microglia, astrocytes, and Müller cells. The increase in IOP produces the activation of glial cells in the retinal tissue. Chronic activation of glial cells in glaucoma may provoke a proinflammatory state at the retinal level inducing blood retinal barrier disruption and RGCs death. The modulation of the immune response in glaucoma as well as the activation of glial cells constitute an interesting new approach in the treatment of glaucoma.
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Affiliation(s)
- Jose A. Fernández-Albarral
- Ramon Castroviejo Ophthalmological Research Institute, Complutense University of Madrid (UCM), Grupo UCM 920105, IdISSC, Madrid, Spain
| | - Ana I. Ramírez
- Ramon Castroviejo Ophthalmological Research Institute, Complutense University of Madrid (UCM), Grupo UCM 920105, IdISSC, Madrid, Spain
- Department of Immunology, Ophthalmology and ENT, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain
| | - Rosa de Hoz
- Ramon Castroviejo Ophthalmological Research Institute, Complutense University of Madrid (UCM), Grupo UCM 920105, IdISSC, Madrid, Spain
- Department of Immunology, Ophthalmology and ENT, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain
| | - José A. Matamoros
- Ramon Castroviejo Ophthalmological Research Institute, Complutense University of Madrid (UCM), Grupo UCM 920105, IdISSC, Madrid, Spain
- Department of Immunology, Ophthalmology and ENT, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain
| | - Elena Salobrar-García
- Ramon Castroviejo Ophthalmological Research Institute, Complutense University of Madrid (UCM), Grupo UCM 920105, IdISSC, Madrid, Spain
- Department of Immunology, Ophthalmology and ENT, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain
| | - Lorena Elvira-Hurtado
- Ramon Castroviejo Ophthalmological Research Institute, Complutense University of Madrid (UCM), Grupo UCM 920105, IdISSC, Madrid, Spain
| | - Inés López-Cuenca
- Ramon Castroviejo Ophthalmological Research Institute, Complutense University of Madrid (UCM), Grupo UCM 920105, IdISSC, Madrid, Spain
- Department of Immunology, Ophthalmology and ENT, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain
| | - Lidia Sánchez-Puebla
- Ramon Castroviejo Ophthalmological Research Institute, Complutense University of Madrid (UCM), Grupo UCM 920105, IdISSC, Madrid, Spain
- Department of Immunology, Ophthalmology and ENT, School of Medicine, Complutense University of Madrid, Madrid, Spain
| | - Juan J. Salazar
- Ramon Castroviejo Ophthalmological Research Institute, Complutense University of Madrid (UCM), Grupo UCM 920105, IdISSC, Madrid, Spain
- Department of Immunology, Ophthalmology and ENT, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain
| | - José M. Ramírez
- Ramon Castroviejo Ophthalmological Research Institute, Complutense University of Madrid (UCM), Grupo UCM 920105, IdISSC, Madrid, Spain
- Department of Immunology, Ophthalmology and ENT, School of Medicine, Complutense University of Madrid, Madrid, Spain
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15
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Li T, Jia Y, Fu J, Fu Z, Qiao Z, Liu X, Lv T, Tang R, Yang G. P53-induced GAP-43 Upregulation in Primary Cortical Neurons of Rats. Protein Pept Lett 2024; 31:229-235. [PMID: 38288820 DOI: 10.2174/0109298665263864231221071712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/17/2023] [Accepted: 12/05/2023] [Indexed: 06/14/2024]
Abstract
OBJECTIVES In this study, we employed an in vitro culturing technique to investigate the impact of p53 on the modulation of growth-associated protein-43 (GAP-43) within the primary cortical neurons of rat specimens. METHODS (1) Within the first 24 hours after birth, the bilateral cortex was extracted from newborn Wistar rats and primary cortical neurons were cultured and identified. (2) The changes in the mRNA and protein expressions of GAP-43 induced by p53 in rat primary cortical neurons cultured in vitro were identified utilizing real-time polymerase chain reaction and western blot techniques. RESULTS (1) Lentiviral transfection of p53 within primary cortical neurons of rats elicited elevated levels of both mRNA and protein expressions of GAP-43, consequently culminating in a noteworthy augmentation of p53 expression. (2) The introduction of a p53 inhibitor in rat primary cortical neurons resulted in a reduction in both mRNA and protein expressions of GAP-43. CONCLUSION Within primary rat cortical neurons, p53 has the potential to prompt an augmentation in both the transcriptional and protein expression levels of the GAP-43 protein.
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Affiliation(s)
- Tianxia Li
- Department of Pediatrics, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010000, China
| | - Yuexin Jia
- Department of Pediatrics, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010000, China
| | - Junxian Fu
- Department of Pediatrics, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010000, China
| | - Zhuo Fu
- Department of Pediatrics, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010000, China
| | - Zhidong Qiao
- Department of Pediatrics, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010000, China
| | - Xiaoyang Liu
- Department of Pediatrics, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010000, China
| | - Ting Lv
- Department of Pediatrics, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010000, China
| | - Rong Tang
- Department of Pediatrics, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010000, China
| | - Guanglu Yang
- Department of Pediatrics, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010000, China
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16
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Maidana DE, Gonzalez-Buendia L, Pastor-Puente S, Naqvi A, Paschalis E, Kazlauskas A, Miller JW, Vavvas DG. Peripheral monocytes and neutrophils promote photoreceptor cell death in an experimental retinal detachment model. Cell Death Dis 2023; 14:834. [PMID: 38102109 PMCID: PMC10724298 DOI: 10.1038/s41419-023-06350-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 10/31/2023] [Accepted: 11/29/2023] [Indexed: 12/17/2023]
Abstract
Photoreceptor cell death and immune cell infiltration are two major events that contribute to retinal degeneration. However, the relationship between these two events has not been well delineated, primarily because of an inadequate understanding of the immunological processes involved in photoreceptor degeneration, especially that of peripheral leukocytes that infiltrate the subretinal space and retinal tissues. In this work, we characterized the role of leukocyte infiltration within the detached retina. We observed that CD45+ CD11b+ Ly6G+ neutrophils and CD45+ CD11b+ Ly6G- Ly6C+ monocytes are the predominant peripheral immune cell populations that infiltrate the retinal and subretinal space after detachment. Selective depletion of monocytes or neutrophils using cell-specific targeting is neuroprotective for photoreceptors. These results indicate that peripheral innate immune cells contribute to photoreceptor degeneration, and targeting these immune cell populations could be therapeutic during retinal detachment.
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Affiliation(s)
- Daniel E Maidana
- Retina Service, Angiogenesis Lab, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, USA
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago, IL, USA
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, IL, USA
| | - Lucia Gonzalez-Buendia
- Retina Service, Angiogenesis Lab, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, USA
| | - Sara Pastor-Puente
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago, IL, USA
| | - Afsar Naqvi
- Mucosal Immunology Lab, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA
| | - Eleftherios Paschalis
- Retina Service, Angiogenesis Lab, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, USA
| | - Andrius Kazlauskas
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago, IL, USA
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, IL, USA
| | - Joan W Miller
- Retina Service, Angiogenesis Lab, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, USA
| | - Demetrios G Vavvas
- Retina Service, Angiogenesis Lab, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, USA.
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17
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Elbaz-Hayoun S, Rinsky B, Hagbi-Levi S, Grunin M, Chowers I. CCR1 mediates Müller cell activation and photoreceptor cell death in macular and retinal degeneration. eLife 2023; 12:e81208. [PMID: 37903056 PMCID: PMC10615370 DOI: 10.7554/elife.81208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 10/04/2023] [Indexed: 11/01/2023] Open
Abstract
Mononuclear cells are involved in the pathogenesis of retinal diseases, including age-related macular degeneration (AMD). Here, we examined the mechanisms that underlie macrophage-driven retinal cell death. Monocytes were extracted from patients with AMD and differentiated into macrophages (hMdɸs), which were characterized based on proteomics, gene expression, and ex vivo and in vivo properties. Using bioinformatics, we identified the signaling pathway involved in macrophage-driven retinal cell death, and we assessed the therapeutic potential of targeting this pathway. We found that M2a hMdɸs were associated with retinal cell death in retinal explants and following adoptive transfer in a photic injury model. Moreover, M2a hMdɸs express several CCRI (C-C chemokine receptor type 1) ligands. Importantly, CCR1 was upregulated in Müller cells in models of retinal injury and aging, and CCR1 expression was correlated with retinal damage. Lastly, inhibiting CCR1 reduced photic-induced retinal damage, photoreceptor cell apoptosis, and retinal inflammation. These data suggest that hMdɸs, CCR1, and Müller cells work together to drive retinal and macular degeneration, suggesting that CCR1 may serve as a target for treating these sight-threatening conditions.
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Affiliation(s)
- Sarah Elbaz-Hayoun
- Department of Ophthalmology, Hadassah Medical Center, Faculty of Medicine, The Hebrew University of JerusalemJerusalemIsrael
| | - Batya Rinsky
- Department of Ophthalmology, Hadassah Medical Center, Faculty of Medicine, The Hebrew University of JerusalemJerusalemIsrael
| | - Shira Hagbi-Levi
- Department of Ophthalmology, Hadassah Medical Center, Faculty of Medicine, The Hebrew University of JerusalemJerusalemIsrael
| | - Michelle Grunin
- Department of Ophthalmology, Hadassah Medical Center, Faculty of Medicine, The Hebrew University of JerusalemJerusalemIsrael
| | - Itay Chowers
- Department of Ophthalmology, Hadassah Medical Center, Faculty of Medicine, The Hebrew University of JerusalemJerusalemIsrael
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18
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Seo H, Chung WG, Kwon YW, Kim S, Hong YM, Park W, Kim E, Lee J, Lee S, Kim M, Lim K, Jeong I, Song H, Park JU. Smart Contact Lenses as Wearable Ophthalmic Devices for Disease Monitoring and Health Management. Chem Rev 2023; 123:11488-11558. [PMID: 37748126 PMCID: PMC10571045 DOI: 10.1021/acs.chemrev.3c00290] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Indexed: 09/27/2023]
Abstract
The eye contains a complex network of physiological information and biomarkers for monitoring disease and managing health, and ocular devices can be used to effectively perform point-of-care diagnosis and disease management. This comprehensive review describes the target biomarkers and various diseases, including ophthalmic diseases, metabolic diseases, and neurological diseases, based on the physiological and anatomical background of the eye. This review also includes the recent technologies utilized in eye-wearable medical devices and the latest trends in wearable ophthalmic devices, specifically smart contact lenses for the purpose of disease management. After introducing other ocular devices such as the retinal prosthesis, we further discuss the current challenges and potential possibilities of smart contact lenses.
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Affiliation(s)
- Hunkyu Seo
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Won Gi Chung
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Yong Won Kwon
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Sumin Kim
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Yeon-Mi Hong
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Wonjung Park
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Enji Kim
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Jakyoung Lee
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Sanghoon Lee
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Moohyun Kim
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Kyeonghee Lim
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Inhea Jeong
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Hayoung Song
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
| | - Jang-Ung Park
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Republic
of Korea
- Department
of Neurosurgery, Yonsei University College
of Medicine, Seoul 03722, Republic of Korea
- Center
for Nanomedicine, Institute for Basic Science (IBS), Yonsei University, Seoul 03722, Republic
of Korea
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19
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Wang X, Wang T, Lam E, Alvarez D, Sun Y. Ocular Vascular Diseases: From Retinal Immune Privilege to Inflammation. Int J Mol Sci 2023; 24:12090. [PMID: 37569464 PMCID: PMC10418793 DOI: 10.3390/ijms241512090] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/21/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
The eye is an immune privileged tissue that insulates the visual system from local and systemic immune provocation to preserve homeostatic functions of highly specialized retinal neural cells. If immune privilege is breached, immune stimuli will invade the eye and subsequently trigger acute inflammatory responses. Local resident microglia become active and release numerous immunological factors to protect the integrity of retinal neural cells. Although acute inflammatory responses are necessary to control and eradicate insults to the eye, chronic inflammation can cause retinal tissue damage and cell dysfunction, leading to ocular disease and vision loss. In this review, we summarized features of immune privilege in the retina and the key inflammatory responses, factors, and intracellular pathways activated when retinal immune privilege fails, as well as a highlight of the recent clinical and research advances in ocular immunity and ocular vascular diseases including retinopathy of prematurity, age-related macular degeneration, and diabetic retinopathy.
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Affiliation(s)
- Xudong Wang
- Department of Ophthalmology, Harvard Medical School, Boston Children’s Hospital, Boston, MA 02115, USA; (X.W.)
| | - Tianxi Wang
- Department of Ophthalmology, Harvard Medical School, Boston Children’s Hospital, Boston, MA 02115, USA; (X.W.)
| | - Enton Lam
- Department of Ophthalmology, Harvard Medical School, Boston Children’s Hospital, Boston, MA 02115, USA; (X.W.)
| | - David Alvarez
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - Ye Sun
- Department of Ophthalmology, Harvard Medical School, Boston Children’s Hospital, Boston, MA 02115, USA; (X.W.)
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20
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Maidana DE, Gonzalez-Buendia L, Miller JW, Vavvas DG. RIPK necrotic cell death pathway in both donor photoreceptor and host immune cells synergize to affect photoreceptor graft survival. FASEB J 2023; 37:e22847. [PMID: 36862516 PMCID: PMC10590064 DOI: 10.1096/fj.202201137r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 11/29/2022] [Accepted: 02/15/2023] [Indexed: 03/03/2023]
Abstract
Photoreceptor transplant has been put forward as a repair strategy to tackle degenerated retinas. Nonetheless, cell death and immune rejection seriously limit the success of this strategy, with only a small fraction of transplanted cells surviving. Improving the survival of transplanted cells is of critical importance. Recent evidence has identified receptor-interacting protein kinase 3 (RIPK3) as a molecular trigger controlling necroptotic cell death and inflammation. However, its role in photoreceptor transplantation and regenerative medicine has not been studied. We hypothesized that modulation of RIPK3 to address both cell death and immunity could have advantageous effects on photoreceptor survival. In a model of inherited retinal degeneration, deletion of RIPK3 in donor photoreceptor precursors significantly increases the survival of transplanted cells. Simultaneous RIPK3 deletion in donor photoreceptors and recipients maximizes graft survival. Lastly, to discern the role of RIPK3 in the host immune response, bone marrow transplant experiments demonstrated that peripheral immune cell RIPK3 deficiency is protective for both donor and host photoreceptor survival. Interestingly, this finding is independent of photoreceptor transplantation, as the peripheral protective effect is also observed in an additional retinal detachment photoreceptor degeneration model. Altogether, these results indicate that immunomodulatory and neuroprotective strategies targeting the RIPK3 pathway can aid regenerative therapies of photoreceptor transplantation.
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Affiliation(s)
- Daniel E. Maidana
- Retina Service, Angiogenesis Laboratory, Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA 02114, USA
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Lucia Gonzalez-Buendia
- Retina Service, Angiogenesis Laboratory, Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA 02114, USA
| | - Joan W. Miller
- Retina Service, Angiogenesis Laboratory, Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA 02114, USA
| | - Demetrios G. Vavvas
- Retina Service, Angiogenesis Laboratory, Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA 02114, USA
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21
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Zhou W, Zhou Y, He J, Rao Y, Fei P, Li J. TREM2 deficiency in microglia accelerates photoreceptor cell death and immune cell infiltration following retinal detachment. Cell Death Dis 2023; 14:219. [PMID: 36977680 PMCID: PMC10050330 DOI: 10.1038/s41419-023-05735-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 03/03/2023] [Accepted: 03/13/2023] [Indexed: 03/30/2023]
Abstract
Retinal detachment (RD) occurs in several major retinal conditions and often causes irreversible vision loss due to photoreceptor cell death. Retinal residential microglial cells are activated following RD and participate in photoreceptor cell death via direct phagocytosis and the regulation of inflammatory responses. Triggering receptor expressed on myeloid cells 2 (TREM2) is an innate immune receptor exclusively expressed on microglial cells in the retina, and has been reported to affect microglial cell homeostasis, phagocytosis and inflammatory responses in the brain. In this study, increased expression of multiple cytokines and chemokines in the neural retina was observed starting at 3 h following RD. Trem2 knockout (Trem2-/-) mice exhibited significantly more photoreceptor cell death than wild-type controls at 3 days after RD, and the number of TUNEL positive photoreceptor cells progressively decreased from day 3 to day 7 post-RD. A significant thinning of the outer nuclear layer (ONL), with multiple folds was observed in the Trem2-/- mice at 3 days post-RD. Trem2 deficiency reduced microglial cell infiltration and phagocytosis of stressed photoreceptors. There were more neutrophils in Trem2-/- retina following RD than in controls. Using purified microglial cells, we found Trem2 knockout is associated with increased CXCL12 expression. The aggravated photoreceptor cell death was largely reversed by blocking the CXCL12-CXCR4 mediated chemotaxis in Trem2-/- mice after RD. Our findings suggested that retinal microglia are protective in preventing further photoreceptor cell death following RD by phagocytosing presumably stressed photoreceptor cells and by regulating inflammatory responses. TREM2 is largely responsible for such protective effect and CXCL12 plays an important role in regulating neutrophil infiltration after RD. Collectively, our study pinpointed TREM2 as a potential target of microglial cells to ameliorate RD-induced photoreceptor cell death.
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Affiliation(s)
- Wenchuan Zhou
- Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Yutong Zhou
- Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Jincan He
- Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Yuqing Rao
- Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Ping Fei
- Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
| | - Jing Li
- Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
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22
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Arndt C, Hubault B, Hayate F, Barbe C, Afriat M, Gillery P, Ramont L, Henry A, Boulagnon-Rombi C. Increased intravitreal glucose in rhegmatogenous retinal detachment. Eye (Lond) 2023; 37:638-643. [PMID: 35273350 PMCID: PMC9998851 DOI: 10.1038/s41433-022-01968-w] [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] [Received: 08/19/2021] [Revised: 01/22/2022] [Accepted: 02/02/2022] [Indexed: 11/09/2022] Open
Abstract
PURPOSE Altered glucose metabolism, along with low-grade inflammation, has been proposed to be involved in retinal detachment (RD)-induced cone loss. Here, we assessed intravitreal glucose and cytological profile in patients with macula-off RD. METHODS Glucose concentration was analysed in vitreous samples from 137 non-diabetic patients undergoing vitrectomy for either primary macula-off RD (n = 73) or epiretinal membrane (ERM; n = 64). Cellularity was assessed in vitreous cytospin preparations by a semi-quantitative immunostaining approach. RESULTS Intravitreal glucose concentration was higher in the RD group (2.28 mmol.L-1 n =73 vs 1.6 mmol.L-1 n = 64; p < 0.0001). Overall cellularity and density of macrophages were significantly higher in the vitreous of RD patients (respectively p = 0.003 and p < 0.0001). Among the RD patients, intravitreal glucose concentration correlated with macrophages density (p = 0.002): its levels remained significantly higher in eyes in which macrophages were innumerable compared to lower macrophages densities RD eyes (p = 0.0095). CONCLUSIONS We observed a strong relationship between intravitreal glucose concentration and vitreous macrophage density. Additional indicators for vitreous glycation and low-grade inflammation should be further studied.
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Affiliation(s)
- Carl Arndt
- Department of Ophthalmology, Hôpital Robert Debré, Reims, France.
| | - Béatrice Hubault
- Department of Ophthalmology, Hôpital Robert Debré, Reims, France
| | - Fabien Hayate
- Department of Ophthalmology, Hôpital Robert Debré, Reims, France
- Department of Pathology, Hôpital Robert Debré, Reims, France
| | - Coralie Barbe
- Department of Clinical Research, Hôpital Robert Debré, Reims, France
| | - Mickaël Afriat
- Department of Ophthalmology, Hôpital Robert Debré, Reims, France
| | - Philippe Gillery
- Department of Biochemistry, Hôpital Robert Debré, Reims, France
- Research Unit CNRS UMR n°7369 MEDyC, Université de Reims Champagne-Ardenne, Faculté de Médecine de Reims, Reims, France
| | - Laurent Ramont
- Department of Biochemistry, Hôpital Robert Debré, Reims, France
- Research Unit CNRS UMR n°7369 MEDyC, Université de Reims Champagne-Ardenne, Faculté de Médecine de Reims, Reims, France
| | - Adrien Henry
- Department of Ophthalmology, Hôpital Robert Debré, Reims, France
- Research Unit CNRS UMR n°7369 MEDyC, Université de Reims Champagne-Ardenne, Faculté de Médecine de Reims, Reims, France
| | - Camille Boulagnon-Rombi
- Department of Pathology, Hôpital Robert Debré, Reims, France
- Research Unit CNRS UMR n°7369 MEDyC, Université de Reims Champagne-Ardenne, Faculté de Médecine de Reims, Reims, France
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23
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Nguyen T, Urrutia-Cabrera D, Wang L, Lees JG, Wang JH, Hung SS, Hewitt AW, Edwards TL, McLenachan S, Chen FK, Lim SY, Luu CD, Guymer R, Wong RC. Knockout of AMD-associated gene POLDIP2 reduces mitochondrial superoxide in human retinal pigment epithelial cells. Aging (Albany NY) 2023; 15:1713-1733. [PMID: 36795578 PMCID: PMC10085620 DOI: 10.18632/aging.204522] [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] [Received: 07/16/2022] [Accepted: 02/01/2023] [Indexed: 02/17/2023]
Abstract
Genetic and epidemiologic studies have significantly advanced our understanding of the genetic factors contributing to age-related macular degeneration (AMD). In particular, recent expression quantitative trait loci (eQTL) studies have highlighted POLDIP2 as a significant gene that confers risk of developing AMD. However, the role of POLDIP2 in retinal cells such as retinal pigment epithelium (RPE) and how it contributes to AMD pathology are unknown. Here we report the generation of a stable human RPE cell line ARPE-19 with POLDIP2 knockout using CRISPR/Cas, providing an in vitro model to investigate the functions of POLDIP2. We conducted functional studies on the POLDIP2 knockout cell line and showed that it retained normal levels of cell proliferation, cell viability, phagocytosis and autophagy. Also, we performed RNA sequencing to profile the transcriptome of POLDIP2 knockout cells. Our results highlighted significant changes in genes involved in immune response, complement activation, oxidative damage and vascular development. We showed that loss of POLDIP2 caused a reduction in mitochondrial superoxide levels, which is consistent with the upregulation of the mitochondrial superoxide dismutase SOD2. In conclusion, this study demonstrates a novel link between POLDIP2 and SOD2 in ARPE-19, which supports a potential role of POLDIP2 in regulating oxidative stress in AMD pathology.
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Affiliation(s)
- Tu Nguyen
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
- Ophthalmology, Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia
| | - Daniel Urrutia-Cabrera
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
- Ophthalmology, Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia
| | - Luozixian Wang
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
- Ophthalmology, Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia
| | - Jarmon G. Lees
- O’Brien Institute Department, St Vincent’s Institute of Medical Research, Melbourne, Victoria, Australia
- Departments of Surgery and Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | - Jiang-Hui Wang
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
- Ophthalmology, Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia
| | - Sandy S.C. Hung
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
- Ophthalmology, Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia
| | - Alex W. Hewitt
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
- Ophthalmology, Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia
- Menzies Institute for Medical Research, School of Medicine, University of Tasmania, Hobart, Tasmania, Australia
| | - Thomas L. Edwards
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
- Ophthalmology, Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia
| | - Sam McLenachan
- Centre for Ophthalmology and Visual Science (Incorporating Lions Eye Institute), The University of Western Australia, Department of Ophthalmology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Fred K. Chen
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
- Ophthalmology, Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia
- Centre for Ophthalmology and Visual Science (Incorporating Lions Eye Institute), The University of Western Australia, Department of Ophthalmology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Shiang Y. Lim
- O’Brien Institute Department, St Vincent’s Institute of Medical Research, Melbourne, Victoria, Australia
- Departments of Surgery and Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | - Chi D. Luu
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
- Ophthalmology, Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia
| | - Robyn Guymer
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
- Ophthalmology, Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia
| | - Raymond C.B. Wong
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
- Ophthalmology, Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia
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24
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Rasoulinejad SA, Kiyamehr P. The Determinative Role of Cytokines in Retinopathy of Prematurity. Curr Mol Med 2023; 23:36-43. [PMID: 35078395 DOI: 10.2174/1566524022666220117114920] [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] [Received: 04/03/2021] [Revised: 11/25/2021] [Accepted: 11/30/2021] [Indexed: 12/16/2022]
Abstract
Retinopathy of prematurity (ROP) is a neonatal disease corresponding to vision impairment and blindness. Utilizing the pathogenesis of ROP and the risk factors affecting its progression can help prevent and reduce its incidence and lead to the emergence and development of new treatment strategies. Factors influencing retinopathy include growth and inflammatory factors that play an essential role in the pathogenesis of the ROP. This review summarizes the most critical factors in the pathogenesis of ROP.
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Affiliation(s)
- Seyed Ahmad Rasoulinejad
- Department of Ophthalmology, Ayatollah Rouhani Hospital, Babol University of Medical Sciences, Babol, Iran
| | - Pegah Kiyamehr
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
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25
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Park B, Sardar Pasha SPB, Sishtla KL, Hartman GD, Qi X, Boulton ME, Corson TW. Decreased Expression of Soluble Epoxide Hydrolase Suppresses Murine Choroidal Neovascularization. Int J Mol Sci 2022; 23:ijms232415595. [PMID: 36555236 PMCID: PMC9779010 DOI: 10.3390/ijms232415595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 12/02/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
Neovascular or "wet" age-related macular degeneration (nAMD) is a leading cause of blindness among older adults. Choroidal neovascularization (CNV) is a major pathological feature of nAMD, in which abnormal new blood vessel growth from the choroid leads to irreversible vision loss. There is a critical need to develop novel therapeutic strategies to address limitations of the current anti-vascular endothelial growth factor biologics. Previously, we identified soluble epoxide hydrolase (sEH) as a possible therapeutic target for CNV through a forward chemical genetic approach. The purpose of this study was to validate sEH as a target by examining retinal expression of sEH protein and mRNA by immunohistochemistry and RNAscope in situ hybridization, respectively, and to assess the efficacy of an adeno-associated virus (AAV) vector designed to knock down the sEH gene, Ephx2, in the murine laser-induced (L-) CNV model. nAMD patient postmortem eye tissue and murine L-CNV showed overexpression of sEH in photoreceptors and retinal pigment epithelial cells. Ephx2 knockdown significantly reduced CNV and normalized mRNA expression levels of CNV-related inflammatory markers. Thus, this study further establishes sEH as a promising therapeutic target against CNV associated with nAMD.
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Affiliation(s)
- Bomina Park
- Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Sheik Pran Babu Sardar Pasha
- Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Kamakshi L. Sishtla
- Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Gabriella D. Hartman
- Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Xiaoping Qi
- Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Michael E. Boulton
- Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Timothy W. Corson
- Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Correspondence: ; Tel.: +1-317-274-3305
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26
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Wang S, Bai J, Zhang YL, Lin QY, Han X, Qu WK, Zhang PF, Ge YS, Zhao Q, Li HH. CXCL1-CXCR2 signalling mediates hypertensive retinopathy by inducing macrophage infiltration. Redox Biol 2022; 56:102438. [PMID: 35981418 PMCID: PMC9418605 DOI: 10.1016/j.redox.2022.102438] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/26/2022] [Accepted: 08/09/2022] [Indexed: 11/04/2022] Open
Abstract
Inflammation plays an important role in hypertensive retinal vascular injury and subsequent retinopathy. Monocyte chemotaxis via CXCL1-CXCR2 binding has been implicated in various cardiovascular diseases, but the function of CXCL1-CXCR2 signalling involved in retinopathy, which was investigated as angiotensin II (Ang II)-induced retinopathy, is unclear. In our study, we established a hypertensive retinopathy (HR) model by Ang II infusion (3000 ng/min/kg) for 3 weeks. To determine the involvement of CXCR2 signalling, we used CXCR2 knockout (KO) mice or C57BL/6J wild-type (WT) mice as experimental subjects. The mice were treated with a CXCL1 neutralizing antibody or SB225002 (the specific CXCR2 inhibitor). Our results showed that after Ang II treatment, the mRNA levels of CXCL1 and CXCR2 and the number of CXCR2+ inflammatory cells were significantly elevated. Conversely, unlike in the IgG control group, the CXCL1 neutralizing antibody greatly reduced the increase in central retinal thickness induced by Ang II infusion, arteriolar remodelling, superoxide production, and retinal dysfunction in WT mice. Furthermore, Ang II infusion induced arteriolar remodelling, infiltration of Iba1+ macrophages, the production of oxidative stress, and retinal dysfunction, but the symptoms were ameliorated in CXCR2 KO mice and SB225002-treated mice. These protective effects were related to the reduction in the number of CXCR2+ immune cells, particularly macrophages, and the decrease in proinflammatory cytokine (IL-1β, IL-6, TNF-ɑ, and MCP-1) expression in Ang II-treated retinas. Notably, serum CXCL1 levels and the number of CXCR2+ monocytes/neutrophils were higher in HR patients than in healthy controls. In conclusion, this study provides new evidence that the CXCL1-CXCR2 axis plays a vital role in the pathogenesis of hypertensive retinopathy, and selective blockade of CXCL1-CXCR2 activation may be a potential treatment for HR.
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Affiliation(s)
- Shuai Wang
- Department of Ophthalmology, Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China.
| | - Jie Bai
- Department of Nutrition and Food Hygiene, School of Public Health, Dalian Medical University, Dalian, 116004, China
| | - Yun-Long Zhang
- Department of Emergency Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Qiu-Yue Lin
- Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, 116000, China
| | - Xiao Han
- Department of Emergency Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Wei-Kun Qu
- Department of Ophthalmology, Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China
| | - Peng-Fei Zhang
- School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian, 116024, China
| | - Yu-Song Ge
- Department of Ophthalmology, Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China
| | - Qi Zhao
- Department of Ophthalmology, Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China.
| | - Hui-Hua Li
- Department of Emergency Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China.
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27
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Changes in Tears Monocyte Chemoattractant Protein-1 Level After External Dacryocystorhinostomy in Primary Acquired Nasolacrimal Duct Obstruction. J Craniofac Surg 2022; 33:e776-e779. [PMID: 35882040 DOI: 10.1097/scs.0000000000008723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 03/22/2022] [Indexed: 10/16/2022] Open
Abstract
BACKGROUND The authors aimed to define tears monocyte chemoattractant protein-1 (MCP-1) changes after external dacryocystorhinostomy surgery. MATERIALS AND METHODS Tears samples were collected with a Schirmer strip and stored in Eppendorf tubes at -80°C. At the end of the study, the papers were cut into small pieces and incubated with phosphate-buffered saline solution. Monocyte chemoattractant protein-1 levels were determined by using an enzyme-linked immunosorbent assays kit. RESULTS The MCP-1 levels were 498.66±101.35, 576.40±149.78, 422.53±85.94, and 436.96±81.38 ng/L before surgery, in the first week, the first, and third months after surgery, respectively. Its level significantly increased in the first week compared with the preoperative level ( P <0.001). There was a prominent decrease in the postoperative first month ( P <0.001). In the third postoperative month, the mean MCP-1 level was not significantly increased compared with the postoperative first month ( P =0.196). CONCLUSION The tears MCP-1 level was significantly decreased after external dacryocystorhinostomy surgery.
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28
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Tao Y, Murakami Y, Vavvas DG, Sonoda KH. Necroptosis and Neuroinflammation in Retinal Degeneration. Front Neurosci 2022; 16:911430. [PMID: 35844208 PMCID: PMC9277228 DOI: 10.3389/fnins.2022.911430] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 05/23/2022] [Indexed: 11/27/2022] Open
Abstract
Necroptosis mediates the chronic inflammatory phenotype in neurodegeneration. Receptor-interacting protein kinase (RIPK) plays a pivotal role in the induction of necroptosis in various cell types, including microglia, and it is implicated in diverse neurodegenerative diseases in the central nervous system and the retina. Targeting RIPK has been proven beneficial for alleviating both neuroinflammation and degeneration in basic/preclinical studies. In this review, we discuss the role of necroptosis in retinal degeneration, including (1) the molecular pathways involving RIPK, (2) RIPK-dependent microglial activation and necroptosis, and (3) the interactions between necroptosis and retinal neuroinflammation/degeneration. This review will contribute to a renewed focus on neuroinflammation induced by necroptosis and to the development of anti-RIPK drugs against retinal degeneration.
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Affiliation(s)
- Yan Tao
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yusuke Murakami
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Demetrios G Vavvas
- Ines and Frederick Yeatts Retinal Research Laboratory, Retina Service, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, United States
| | - Koh-Hei Sonoda
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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29
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Ando Y, Keino H, Inoue M, Hirota K, Takahashi H, Sano K, Koto T, Sato T, Takeuchi M, Hirakata A. Circulating Vitreous microRNA as Possible Biomarker in High Myopic Eyes with Macular Hole. Int J Mol Sci 2022; 23:ijms23073647. [PMID: 35409006 PMCID: PMC8998168 DOI: 10.3390/ijms23073647] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 01/27/2023] Open
Abstract
High myopia is a major cause of irreversible visual impairment globally. In the present study, we investigated the microRNA (miRNA) profile in the vitreous of macular hole (MH) and high myopic MH. We performed miRNA analysis using TaqMan® Low Density Arrays (Thermo Fisher Scientific, Waltham, MA, USA) to investigate the circulating vitreous miRNA profile from patients with MH (axial length < 26.5 mm, n = 11) and high myopic MH (axial length ≥ 26.5 mm, n = 11) who underwent pars plana vitrectomy. The vitreous inflammatory cytokine signature was examined in high myopic MH eyes using a multiplex assay. A miRNA-Array analysis revealed that let-7c was significantly up-regulated and miR-200a was significantly down-regulated in high myopic MH eyes compared to those in MH eyes. The bioinformatics analysis for up-regulated miRNA targeted gene identified 23 pathways including mitogen-activated protein kinase (MAPK) and several inflammatory signaling pathways, whereas the bioinformatics analysis for down-regulated miRNA targeted genes showed 32 enriched pathways including phosphoinositide 3-kinase/protein kinase B (PI3K/AKT). The levels of inflammatory cytokines including IP-10, IFN-γ, and MCP-1 were significantly higher in the vitreous of high myopic MH eyes. These results suggest that specific miRNAs expressed in the vitreous may be associated with the pathological condition of high myopic MH and the above mentioned miRNAs may contribute to the development of inflammatory status in the vitreous of high myopic eyes.
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Affiliation(s)
- Yoshimasa Ando
- Department of Ophthalmology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo 181-8611, Japan; (Y.A.); (M.I.); (K.H.); (H.T.); (K.S.); (T.K.); (A.H.)
| | - Hiroshi Keino
- Department of Ophthalmology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo 181-8611, Japan; (Y.A.); (M.I.); (K.H.); (H.T.); (K.S.); (T.K.); (A.H.)
- Correspondence: ; Tel.: +81-422-47-5511
| | - Makoto Inoue
- Department of Ophthalmology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo 181-8611, Japan; (Y.A.); (M.I.); (K.H.); (H.T.); (K.S.); (T.K.); (A.H.)
| | - Kazunari Hirota
- Department of Ophthalmology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo 181-8611, Japan; (Y.A.); (M.I.); (K.H.); (H.T.); (K.S.); (T.K.); (A.H.)
| | - Hiroyuki Takahashi
- Department of Ophthalmology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo 181-8611, Japan; (Y.A.); (M.I.); (K.H.); (H.T.); (K.S.); (T.K.); (A.H.)
- Department of Ophthalmology and Visual Science, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Kimihiko Sano
- Department of Ophthalmology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo 181-8611, Japan; (Y.A.); (M.I.); (K.H.); (H.T.); (K.S.); (T.K.); (A.H.)
| | - Takashi Koto
- Department of Ophthalmology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo 181-8611, Japan; (Y.A.); (M.I.); (K.H.); (H.T.); (K.S.); (T.K.); (A.H.)
| | - Tomohito Sato
- Department of Ophthalmology, National Defense Medical College, 3-2, Namiki, Tokorozawa 359-8513, Japan; (T.S.); (M.T.)
| | - Masaru Takeuchi
- Department of Ophthalmology, National Defense Medical College, 3-2, Namiki, Tokorozawa 359-8513, Japan; (T.S.); (M.T.)
| | - Akito Hirakata
- Department of Ophthalmology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo 181-8611, Japan; (Y.A.); (M.I.); (K.H.); (H.T.); (K.S.); (T.K.); (A.H.)
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Postoperative proliferative vitreoretinopathy development is linked to vitreal CXCL5 concentrations. Sci Rep 2021; 11:23989. [PMID: 34907233 PMCID: PMC8671512 DOI: 10.1038/s41598-021-03294-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 11/30/2021] [Indexed: 11/11/2022] Open
Abstract
The specific changes linked to de novo development of postoperative PVR have remained elusive and were the object of the underlying study. Vitreous fluid (VF) was obtained at the beginning of vitrectomy from 65 eyes that underwent vitrectomy for primary rhegmatogenous retinal detachment (RRD) without preoperative PVR. Eyes developing postoperative PVR within 6 months after re-attachment surgery were compared to those which did not regarding the preoperative concentrations of 43 cytokines and chemokines in the VF, using multiplex beads analysis. For all comparisons Holm’s correction was applied in order to control for multiple comparisons. Twelve out of 65 eyes (18.5%) developed PVR postoperatively. While 12 of the chemokines and cytokines presented concentration differences on a statistical level of p < 0.05 (CXCL5, CCL11, CCL24, CCL26, GM-CSF, IFN-γ, CCL8, CCL7, MIF, MIG/CXCL9, CCL19, and CCL25), CXCL5 was the only cytokine with sufficiently robust difference in its VF concentrations to achieve significance in eyes developing postoperative PVR compared to eyes without PVR. CXCL5 may represent a potent biomarker for the de novo development of postoperative PVR. In line with its pathophysiological role in the development of PVR, it might serve as a basis for the development of urgently needed preventive options.
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Conart JB, Augustin S, Remen T, Sahel JA, Guillonneau X, Delarasse C, Sennlaub F, Berrod JP. Vitreous cytokine expression profiles in patients with retinal detachment. J Fr Ophtalmol 2021; 44:1349-1357. [PMID: 34544594 DOI: 10.1016/j.jfo.2021.04.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 03/29/2021] [Accepted: 04/01/2021] [Indexed: 01/21/2023]
Abstract
PURPOSE To compare the expression profiles of various cytokines and chemokines in vitreous samples from patients with retinal detachment (RD) to those from controls and to analyze their association with various clinical features. METHODS In this prospective study, undiluted vitreous fluid was obtained from 41 patients with primary RD and 33 controls with macular hole or vitreomacular traction. A multiplex bead immunoassay was performed to determine the expression of 27 inflammatory mediators. RESULTS Eleven mediators were significantly upregulated in the vitreous of RD patients compared with controls, including the following: cytokines IL-1ra, IL-6, IL-7, IL-8, IFN-γ; chemokines CCL2, CCL3, CCL4, CXCL10 and CCL11 and growth factor G-CSF. Correlation analyses showed that levels of IL-1ra, CXCL10, CCL11 and G-CSF were positively correlated to the extent of detachment, while those of IL-1ra and CXCL10 were associated with the duration of detachment. There was also a positive association between the concentrations of CXCL10 and CCL11 and preoperative flare values. Additional analysis revealed that flare values and both CXCL10 and CCL11 levels were significantly higher in eyes with grade B or C proliferative vitreoretinopathy (PVR). CONCLUSION Our results confirm that RD induces a marked inflammatory response with a complex cytokine network. We identified proteins specifically linked to several clinical features that might contribute to photoreceptor degeneration and PVR-related redetachment. These proteins may represent potential therapeutic targets for improving the anatomical and functional outcomes of RD surgery.
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Affiliation(s)
- J-B Conart
- Department of Ophthalmology, Nancy University Hospital, Vandœuvre-lès-Nancy, France; Institut de la Vision, Sorbonne Universités, UPMC Univ Paris 06, Inserm, CNRS, 17, rue Moreau, 75012 Paris, France.
| | - S Augustin
- Institut de la Vision, Sorbonne Universités, UPMC Univ Paris 06, Inserm, CNRS, 17, rue Moreau, 75012 Paris, France
| | - T Remen
- ESPRI-BioBase Unit, Platform of PARC, Nancy University Hospital, Vandœuvre-lès-Nancy, France
| | - J-A Sahel
- Institut de la Vision, Sorbonne Universités, UPMC Univ Paris 06, Inserm, CNRS, 17, rue Moreau, 75012 Paris, France
| | - X Guillonneau
- Institut de la Vision, Sorbonne Universités, UPMC Univ Paris 06, Inserm, CNRS, 17, rue Moreau, 75012 Paris, France
| | - C Delarasse
- Institut de la Vision, Sorbonne Universités, UPMC Univ Paris 06, Inserm, CNRS, 17, rue Moreau, 75012 Paris, France
| | - F Sennlaub
- Institut de la Vision, Sorbonne Universités, UPMC Univ Paris 06, Inserm, CNRS, 17, rue Moreau, 75012 Paris, France
| | - J-P Berrod
- Department of Ophthalmology, Nancy University Hospital, Vandœuvre-lès-Nancy, France
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Wang Y, Zhang Q, Yang G, Wei Y, Li M, Du E, Li H, Song Z, Tao Y. RPE-derived exosomes rescue the photoreceptors during retina degeneration: an intraocular approach to deliver exosomes into the subretinal space. Drug Deliv 2021; 28:218-228. [PMID: 33501868 PMCID: PMC7850421 DOI: 10.1080/10717544.2020.1870584] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Retinal degeneration (RD) refers to a group of blinding retinopathies leading to the progressive photoreceptor demise and vision loss. Treatments against this debilitating disease are urgently needed. Intraocular delivery of exosomes represents an innovative therapeutic strategy against RD. In this study, we aimed to determine whether the subretinal delivery of RPE-derived exosomes (RPE-Exos) can prevent the photoreceptor death in RD. RD was induced in C57BL6 mice by MNU administration. These MNU administered mice received a single subretinal injection of RPE-Exos. Two weeks later, the RPE-Exos induced effects were evaluated via functional, morphological, and behavior examinations. Subretinal delivery of RPE-Exos efficiently ameliorates the visual function impairments, and alleviated the structural damages in the retina of MNU administered mice. Moreover, RPE-Exos exert beneficial effects on the electrical response of the inner retinal circuits. Treatment with RPE-Exos suppressed the expression levels of inflammatory factors, and mitigated the oxidative damage, indicating that subretinal delivery of RPE-Exos constructed a cytoprotective microenvironment in the retina of MNU administered mice. Our data suggest that RPE-Exos have therapeutic effects against the visual impairments and photoreceptor death. These findings will enrich our knowledge of RPE-Exos, and highlight the discovery of a promising medication for RD.
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Affiliation(s)
- Yange Wang
- Department of Ophthalmology, People's Hospital of Zhengzhou University; Department of Physiology, Basic College of Medicine, Zhengzhou University, Zhengzhou, China
| | - Qian Zhang
- Department of Clinical Aerospace Medicine, Fourth Military Medical University, Xi'an, China
| | - Guoqing Yang
- Department of Clinical Aerospace Medicine, Fourth Military Medical University, Xi'an, China
| | - Yuanmeng Wei
- Department of Ophthalmology, People's Hospital of Zhengzhou University; Department of Physiology, Basic College of Medicine, Zhengzhou University, Zhengzhou, China
| | - Miao Li
- Department of Ophthalmology, People's Hospital of Zhengzhou University; Department of Physiology, Basic College of Medicine, Zhengzhou University, Zhengzhou, China
| | - Enming Du
- Department of Ophthalmology, People's Hospital of Zhengzhou University; Department of Physiology, Basic College of Medicine, Zhengzhou University, Zhengzhou, China
| | - Haijun Li
- Department of Ophthalmology, People's Hospital of Zhengzhou University; Department of Physiology, Basic College of Medicine, Zhengzhou University, Zhengzhou, China
| | - Zongming Song
- Department of Ophthalmology, People's Hospital of Zhengzhou University; Department of Physiology, Basic College of Medicine, Zhengzhou University, Zhengzhou, China
| | - Ye Tao
- Department of Ophthalmology, People's Hospital of Zhengzhou University; Department of Physiology, Basic College of Medicine, Zhengzhou University, Zhengzhou, China
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Yokota H, Nagaoka T, Noma H, Ofusa A, Kanemaki T, Aso H, Hanazaki H, Yamagami S, Shimura M. Role of ICAM-1 in impaired retinal circulation in rhegmatogenous retinal detachment. Sci Rep 2021; 11:15393. [PMID: 34321574 PMCID: PMC8319174 DOI: 10.1038/s41598-021-94993-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 07/13/2021] [Indexed: 11/28/2022] Open
Abstract
Many studies have demonstrated that rhegmatogenous retinal detachment (RRD) leads to impaired retinal circulation. However, the involvement of inflammation in the RRD-induced worsening of retinal circulation was obscure. This retrospective observational study included 150 patients with primary RRD (macula-on, n = 63; macula-off, n = 87) who underwent 25-gauge microincision vitrectomy surgery (25G MIVS). Total retinal blood flow was represented by the mean blur rate (MBR) of the optic nerve head vessel, measured by laser speckle flowgraphy preoperatively and until 6 months postoperatively. Aqueous humor samples were obtained during surgery to determine cytokine concentrations by enzyme-linked immunosorbent assay. At 3 and 6 months postoperatively, there were no significant differences between eyes with macula-on RRD and fellow eyes. However, in macula-off RRD, MBR remained significantly lower in RRD eyes 6 months postoperatively (P < 0.05). Log-transformed levels of soluble intercellular adhesion molecule-1 (sICAM-1) were negatively correlated with relative MBR (r-MBR, RRD eye/fellow eye) before surgery (r = − 0.47, P = 0.01) in macula-on, but not macula-off, RRD. Six months postoperatively, r-MBR correlated significantly with sICAM-1 levels (r = − 0.36, P = 0.02) in macula-off RRD. ICAM-1 may play a role in RRD-induced deterioration of retinal circulation.
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Affiliation(s)
- Harumasa Yokota
- Division of Ophthalmology, Department of Visual Sciences, Nihon University School of Medicine, 30-1 Oyaguchi-Kamicho, Itabashi-ku, Tokyo, 173-8610, Japan.
| | - Taiji Nagaoka
- Division of Ophthalmology, Department of Visual Sciences, Nihon University School of Medicine, 30-1 Oyaguchi-Kamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Hidetaka Noma
- Department of Ophthalmology, Hachioji Medical Center, Tokyo Medical University, Tokyo, Japan
| | - Akemi Ofusa
- Department of Ophthalmology, Hachioji Medical Center, Tokyo Medical University, Tokyo, Japan
| | - Tomoe Kanemaki
- Department of Ophthalmology, Hachioji Medical Center, Tokyo Medical University, Tokyo, Japan
| | - Hiroshi Aso
- Division of Ophthalmology, Department of Visual Sciences, Nihon University School of Medicine, 30-1 Oyaguchi-Kamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Hirotsugu Hanazaki
- Division of Ophthalmology, Department of Visual Sciences, Nihon University School of Medicine, 30-1 Oyaguchi-Kamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Satoru Yamagami
- Division of Ophthalmology, Department of Visual Sciences, Nihon University School of Medicine, 30-1 Oyaguchi-Kamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Masahiko Shimura
- Department of Ophthalmology, Hachioji Medical Center, Tokyo Medical University, Tokyo, Japan
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Huang HW, Yang CM, Yang CH. Fibroblast Growth Factor Type 1 Ameliorates High-Glucose-Induced Oxidative Stress and Neuroinflammation in Retinal Pigment Epithelial Cells and a Streptozotocin-Induced Diabetic Rat Model. Int J Mol Sci 2021; 22:ijms22137233. [PMID: 34281287 PMCID: PMC8267624 DOI: 10.3390/ijms22137233] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/26/2021] [Accepted: 06/30/2021] [Indexed: 01/20/2023] Open
Abstract
Diabetic retinopathy (DR) is a common complication of diabetes that causes severe visual impairment globally. The pathogenesis of DR is related to oxidative stress and chronic inflammation. The fibroblast growth factor type 1 (FGF-1) mitogen plays crucial roles in cell function, development, and metabolism. FGF-1 is involved in blood sugar regulation and exerts beneficial antioxidative and anti-inflammatory effects on various organ systems. This study investigated the antioxidative and anti-inflammatory neuroprotective effects of FGF-1 on high-glucose-induced retinal damage. The results revealed that FGF-1 treatment significantly reversed the harmful effects of oxidative stress and inflammatory mediators in retinal tissue in a streptozotocin-induced diabetic rat model. These protective effects were also observed in the in vitro model of retinal ARPE-19 cells exposed to a high-glucose condition. We demonstrated that FGF-1 attenuated p38 mitogen-activated protein kinase and nuclear factor-κB pathway activation under the high-glucose condition. Our results indicated that FGF-1 could effectively prevent retinal injury in diabetes. The findings of this study could be used to develop novel treatments for DR that aim to reduce the cascade of oxidative stress and inflammatory signals in neuroretinal tissue.
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Affiliation(s)
- Hsin-Wei Huang
- Department of Ophthalmology, Wan Fang Hospital, Taipei Medical University, No. 111, Sec. 3, Xinglong Rd., Taipei 11696, Taiwan;
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, No. 1, Jen Ai Road Sec. 1, Taipei 100, Taiwan
| | - Chung-May Yang
- Department of Ophthalmology, National Taiwan University Hospital, No. 7, Zhongshan South Road, Taipei 100, Taiwan;
- Department of Ophthalmology, College of Medicine, National Taiwan University, No. 1, Jen Ai Road, Sec. 1, Taipei 100, Taiwan
| | - Chang-Hao Yang
- Department of Ophthalmology, National Taiwan University Hospital, No. 7, Zhongshan South Road, Taipei 100, Taiwan;
- Department of Ophthalmology, College of Medicine, National Taiwan University, No. 1, Jen Ai Road, Sec. 1, Taipei 100, Taiwan
- Correspondence: ; Tel.: +886-2-2312-3456 (ext. 62131); Fax: +886-2-2393-4420
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Grzybowski A, Shtayer C, Schwartz SG, Moisseiev E. The 100 most cited papers on retinal detachment: a bibliographic perspective. Br J Ophthalmol 2021; 106:305-311. [PMID: 33785506 DOI: 10.1136/bjophthalmol-2020-318015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 02/27/2021] [Accepted: 03/12/2021] [Indexed: 11/04/2022]
Abstract
The 100 most cited papers on retinal detachment (RD) were analysed using a bibliographic study. The bibliographic databases of the ISI Web of Knowledge were searched, limited to research articles published between 1965 and 2020 in peer-reviewed journals. The papers were ranked in order of number of citations since publication. Ninety of the 100 most cited papers on RD were published in 12 ophthalmology journals, with 74 of them published in American Journal of Ophthalmology (n=31), Ophthalmology (n=23), Archives of Ophthalmology (n=10) and Investigative Ophthalmology and Visual Science (n=10); the remaining 10 papers were published in 8 journals from other fields of medical research. All papers in the top 100 were published in English. The 100 most cited papers on RD originated from 12 different countries, with the majority (72 papers) originating from the USA. The 100 identified papers represent a mix of clinical trials and animal/laboratory studies. This bibliographic study provides a unique perspective and insight into some of the most influential contributions in RD understanding and management over the last 55 years.
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Affiliation(s)
- Andrzej Grzybowski
- Department of Ophthalmology, University of Warmia and Mazury in Olsztyn School of Medicine, Olsztyn, Poland
| | - Chen Shtayer
- Ophthalmology, Meir Medical Center, Kfar Saba, Israel
| | - Stephen G Schwartz
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, USA .,Institute for Research in Ophthalmology, Poznan, Poland
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Micera A, Balzamino BO, Di Zazzo A, Dinice L, Bonini S, Coassin M. Biomarkers of Neurodegeneration and Precision Therapy in Retinal Disease. Front Pharmacol 2021; 11:601647. [PMID: 33584278 PMCID: PMC7873955 DOI: 10.3389/fphar.2020.601647] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 11/09/2020] [Indexed: 12/11/2022] Open
Abstract
Vision-threatening retinal diseases affect millions of people worldwide, representing an important public health issue (high social cost) for both technologically advanced and new-industrialized countries. Overall RD group comprises the retinitis pigmentosa, the age-related macular degeneration (AMD), the diabetic retinopathy (DR), and idiopathic epiretinal membrane formation. Endocrine, metabolic, and even lifestyles risk factors have been reported for these age-linked conditions that represent a "public priority" also in this COVID-19 emergency. Chronic inflammation and neurodegeneration characterize the disease evolution, with a consistent vitreoretinal interface impairment. As the vitreous chamber is significantly involved, the latest diagnostic technologies of imaging (retina) and biomarker detection (vitreous) have provided a huge input at both medical and surgical levels. Complement activation and immune cell recruitment/infiltration as well as detrimental intra/extracellular deposits occur in association with a reactive gliosis. The cell/tissue aging route shows a specific signal path and biomolecular profile characterized by the increased expression of several glial-derived mediators, including angiogenic/angiostatic, neurogenic, and stress-related factors (oxidative stress metabolites, inflammation, and even amyloid formation). The possibility to access vitreous chamber by collecting vitreous reflux during intravitreal injection or obtaining vitreous biopsy during a vitrectomy represents a step forward for an individualized therapy. As drug response and protein signature appear unique in each single patient, therapies should be individualized. This review addresses the current knowledge about biomarkers and pharmacological targets in these vitreoretinal diseases. As vitreous fluids might reflect the early stages of retinal sufferance and/or late stages of neurodegeneration, the possibility to modulate intravitreal levels of growth factors, in combination to anti-VEGF therapy, would open to a personalized therapy of retinal diseases.
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Affiliation(s)
- Alessandra Micera
- Research and Development Laboratory for Biochemical, Molecular and Cellular Applications in Ophthalmological Sciences, IRCCS - Fondazione Bietti, Rome, Italy
| | - Bijorn Omar Balzamino
- Research and Development Laboratory for Biochemical, Molecular and Cellular Applications in Ophthalmological Sciences, IRCCS - Fondazione Bietti, Rome, Italy
| | - Antonio Di Zazzo
- Ophthalmology Operative Complex Unit, University Campus Bio-Medico, Rome, Italy
| | - Lucia Dinice
- Research and Development Laboratory for Biochemical, Molecular and Cellular Applications in Ophthalmological Sciences, IRCCS - Fondazione Bietti, Rome, Italy
| | - Stefano Bonini
- Ophthalmology Operative Complex Unit, University Campus Bio-Medico, Rome, Italy
| | - Marco Coassin
- Ophthalmology Operative Complex Unit, University Campus Bio-Medico, Rome, Italy
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Innate Immunity in Age-Related Macular Degeneration. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1256:121-141. [PMID: 33848000 DOI: 10.1007/978-3-030-66014-7_5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Multiple lines of investigation have demonstrated that inflammation plays significant roles in etiology of age-related macular degeneration (AMD). Although interventional trials in AMD therapy targeting inflammatory pathways have been conducted, they have not yet been successful and a detailed understanding as to why some have failed is still elusive. One limitation is the relative dearth of information on how immune cells interact with retinal cells to generate AMD phenotypes at each disease stage. Here, we summarize current research evidence and hypotheses regarding potential pathogenic roles of innate immune cells in the eye, which include resident retinal microglia, macrophages derived from infiltrating systemic monocytes, and macrophages resident in the choroid. We relate recent findings regarding the physiology, function, and cellular interactions involving innate immune cells in the retina and choroid to AMD-related processes, including: (1) drusen formation and regression, (2) the onset and spread of degeneration in late atrophic AMD, and (3) the initiation, growth, and exudation of neovascular vessels in late "wet" AMD. Understanding how innate immune cells contribute to specific AMD phenotypes can assist in generating a comprehensive view on the inflammatory etiology of AMD and aid in identifying anti-inflammatory therapeutic strategies and selecting appropriate clinical outcomes for the planned interventions.
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Zhuang X, Ma J, Xu S, Sun Z, Zhang R, Zhang M, Xu G. SHP-1 suppresses endotoxin-induced uveitis by inhibiting the TAK1/JNK pathway. J Cell Mol Med 2021; 25:147-160. [PMID: 33207073 PMCID: PMC7810969 DOI: 10.1111/jcmm.15888] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 08/14/2020] [Accepted: 08/21/2020] [Indexed: 12/14/2022] Open
Abstract
We investigated how Src-homology 2-domain phosphatase-1 (SHP-1) regulates the inflammatory response in endotoxin-induced uveitis (EIU), and the signalling pathways involved. One week after intravitreal injection of short hairpin RNA targeting SHP-1 or SHP-1 overexpression lentivirus in rats, we induced ocular inflammation with an intravitreal injection of lipopolysaccharide (LPS). We then assessed the extent of inflammation and performed full-field electroretinography. The concentrations and retinal expression of various inflammatory mediators were examined with enzyme-linked immunosorbent assays and Western blotting, respectively. SHP-1 overexpression and knockdown were induced in Müller cells to study the role of SHP-1 in the LPS-induced inflammatory response in vitro. Retinal SHP-1 expression was up-regulated by LPS. SHP-1 knockdown exacerbated LPS-induced retinal dysfunction and increased the levels of proinflammatory mediators in the retina, which was abrogated by a c-Jun N-terminal kinase (JNK) inhibitor (SP600125). SHP-1 overexpression had the opposite effects. In Müller cells, the LPS-induced inflammatory response was enhanced by SHP-1 knockdown and suppressed by SHP-1 overexpression. SHP-1 negatively regulated the activation of the transforming growth factor-β-activated kinase-1 (TAK1)/JNK pathway, but not the nuclear factor-κB pathway. These results indicate that SHP-1 represses EIU, at least in part, by inhibiting the TAK1/JNK pathway and suggest that SHP-1 is a potential therapeutic target for uveitis.
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Affiliation(s)
- Xiaonan Zhuang
- Department of OphthalmologyEye & ENT HospitalFudan UniversityShanghaiChina
| | - Jun Ma
- Eye InstituteEye & ENT HospitalFudan UniversityShanghaiChina
| | - Sisi Xu
- Department of OphthalmologyEye & ENT HospitalFudan UniversityShanghaiChina
| | - Zhongcui Sun
- Department of OphthalmologyEye & ENT HospitalFudan UniversityShanghaiChina
| | - Rong Zhang
- Eye InstituteEye & ENT HospitalFudan UniversityShanghaiChina
| | - Meng Zhang
- Department of OphthalmologyEye & ENT HospitalFudan UniversityShanghaiChina
| | - Gezhi Xu
- Department of OphthalmologyEye & ENT HospitalFudan UniversityShanghaiChina
- Shanghai Key Laboratory of Visual Impairment and RestorationFudan UniversityShanghaiChina
- NHC Key Laboratory of MyopiaFudan UniversityShanghaiChina
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Neuroprotective effects and mechanisms of action of nicotinamide mononucleotide (NMN) in a photoreceptor degenerative model of retinal detachment. Aging (Albany NY) 2020; 12:24504-24521. [PMID: 33373320 PMCID: PMC7803565 DOI: 10.18632/aging.202453] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 11/21/2020] [Indexed: 01/17/2023]
Abstract
Currently, no pharmacotherapy has been proven effective in treating photoreceptor degeneration in patients. Discovering readily available and safe neuroprotectants is therefore highly sought after. Here, we investigated nicotinamide mononucleotide (NMN), a precursor of nicotinamide adenine dinucleotide (NAD+), in a retinal detachment (RD) induced photoreceptor degeneration. NMN administration after RD resulted in a significant reduction of TUNEL+ photoreceptors, CD11b+ macrophages, and GFAP labeled glial activation; a normalization of protein carbonyl content (PCC), and a preservation of the outer nuclear layer (ONL) thickness. NMN administration significantly increased NAD+ levels, SIRT1 protein expression, and heme oxygenase-1 (HO-1) expression. Delayed NMN administration still exerted protective effects after RD. Mechanistic in vitro studies using 661W cells revealed a SIRT1/HO-1 signaling as a downstream effector of NMN-mediated protection under oxidative stress and LPS stimulation. In conclusion, NMN administration exerts neuroprotective effects on photoreceptors after RD and oxidative injury, suggesting a therapeutic avenue to treating photoreceptor degeneration.
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Conart JB, Blot G, Augustin S, Millet-Puel G, Roubeix C, Beguier F, Charles-Messance H, Touhami S, Sahel JA, Berrod JP, Léveillard T, Guillonneau X, Delarasse C, Sennlaub F. Insulin inhibits inflammation-induced cone death in retinal detachment. J Neuroinflammation 2020; 17:358. [PMID: 33243251 PMCID: PMC7694924 DOI: 10.1186/s12974-020-02039-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 11/17/2020] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Rhegmatogenous retinal detachment (RD) involving the macula is a major cause of visual impairment despite high surgical success rate, mainly because of cone death. RD causes the infiltration of activated immune cells, but it is not clear whether and how infiltrating inflammatory cells contribute to cone cell loss. METHODS Vitreous samples from patients with RD and from control patients with macular hole were analyzed to characterize the inflammatory response to RD. A mouse model of RD and retinal explants culture were then used to explore the mechanisms leading to cone death. RESULTS Analysis of vitreous samples confirms that RD induces a marked inflammatory response with increased cytokine and chemokine expression in humans, which is closely mimicked by experimental murine RD. In this model, we corroborate that myeloid cells and T-lymphocytes contribute to cone loss, as the inhibition of their accumulation by Thrombospondin 1 (TSP1) increased cone survival. Using monocyte/retinal co-cultures and TSP1 treatment in RD, we demonstrate that immune cell infiltration downregulates rod-derived cone viability factor (RdCVF), which physiologically regulates glucose uptake in cones. Insulin and the insulin sensitizers rosiglitazone and metformin prevent in part the RD-induced cone loss in vivo, despite the persistence of inflammation CONCLUSION: Our results describe a new mechanism by which inflammation induces cone death in RD, likely through cone starvation due to the downregulation of RdCVF that could be reversed by insulin. Therapeutic inhibition of inflammation and stimulation of glucose availability in cones by insulin signaling might prevent RD-associated cone death until the RD can be surgically repaired and improve visual outcome after RD. TRIAL REGISTRATION ClinicalTrials.gov NCT03318588.
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Affiliation(s)
- Jean-Baptiste Conart
- Institut de la Vision, INSERM, UMR_S 968, CNRS, Sorbonne Université, 17 rue Moreau, F-75012, Paris, France.,Département d'Ophtalmologie, CHRU Nancy, Allée du Morvan, Vandoeuvre-lès-Nancy, France
| | - Guillaume Blot
- Institut de la Vision, INSERM, UMR_S 968, CNRS, Sorbonne Université, 17 rue Moreau, F-75012, Paris, France
| | - Sébastien Augustin
- Institut de la Vision, INSERM, UMR_S 968, CNRS, Sorbonne Université, 17 rue Moreau, F-75012, Paris, France
| | - Géraldine Millet-Puel
- Institut de la Vision, INSERM, UMR_S 968, CNRS, Sorbonne Université, 17 rue Moreau, F-75012, Paris, France
| | - Christophe Roubeix
- Institut de la Vision, INSERM, UMR_S 968, CNRS, Sorbonne Université, 17 rue Moreau, F-75012, Paris, France
| | - Fanny Beguier
- Institut de la Vision, INSERM, UMR_S 968, CNRS, Sorbonne Université, 17 rue Moreau, F-75012, Paris, France
| | - Hugo Charles-Messance
- Institut de la Vision, INSERM, UMR_S 968, CNRS, Sorbonne Université, 17 rue Moreau, F-75012, Paris, France
| | - Sara Touhami
- Institut de la Vision, INSERM, UMR_S 968, CNRS, Sorbonne Université, 17 rue Moreau, F-75012, Paris, France
| | - José-Alain Sahel
- Institut de la Vision, INSERM, UMR_S 968, CNRS, Sorbonne Université, 17 rue Moreau, F-75012, Paris, France
| | - Jean-Paul Berrod
- Département d'Ophtalmologie, CHRU Nancy, Allée du Morvan, Vandoeuvre-lès-Nancy, France
| | - Thierry Léveillard
- Institut de la Vision, INSERM, UMR_S 968, CNRS, Sorbonne Université, 17 rue Moreau, F-75012, Paris, France
| | - Xavier Guillonneau
- Institut de la Vision, INSERM, UMR_S 968, CNRS, Sorbonne Université, 17 rue Moreau, F-75012, Paris, France.
| | - Cécile Delarasse
- Institut de la Vision, INSERM, UMR_S 968, CNRS, Sorbonne Université, 17 rue Moreau, F-75012, Paris, France.
| | - Florian Sennlaub
- Institut de la Vision, INSERM, UMR_S 968, CNRS, Sorbonne Université, 17 rue Moreau, F-75012, Paris, France.
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Jiang Q, Maresch CC, Petry SF, Paradowska-Dogan A, Bhushan S, Chang Y, Wrenzycki C, Schuppe HC, Houska P, Hartmann MF, Wudy SA, Shi L, Linn T. Elevated CCL2 causes Leydig cell malfunction in metabolic syndrome. JCI Insight 2020; 5:134882. [PMID: 33148888 PMCID: PMC7710294 DOI: 10.1172/jci.insight.134882] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 09/30/2020] [Indexed: 01/22/2023] Open
Abstract
Metabolic syndrome (MetS), which is associated with chronic inflammation, predisposes males to hypogonadism and subfertility. The underlying mechanism of these pathologies remains poorly understood. Homozygous leptin-resistant obese db/db mice are characterized by small testes, low testicular testosterone, and a reduced number of Leydig cells. Here we report that IL-1β, CCL2 (also known as MCP-1), and corticosterone concentrations were increased in the testes of db/db mice relative to those in WT controls. Cultured murine and human Leydig cells responded to cytokine stress with increased CCL2 release and apoptotic signals. Chemical inhibition of CCL2 rescued Leydig cell function in vitro and in db/db mice. Consistently, we found that Ccl2-deficient mice fed with a high-energy diet were protected from testicular dysfunction compared with similarly fed WT mice. Finally, a cohort of infertile men with a history of MetS showed that reduction of CCL2 plasma levels could be achieved by weight loss and was clearly associated with recovery from hypogonadism. Taken together, we conclude that CCL2-mediated chronic inflammation is, to a large extent, responsible for the subfertility in MetS by causing damage to Leydig cells. MCP-1/CCL2 upregulation associates with metabolic syndrome–induced male subfertility in both mice and men.
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Affiliation(s)
- Qingkui Jiang
- Clinical Research Unit, Centre of Internal Medicine, Justus-Liebig-University (JLU), Giessen, Germany
| | - Constanze C Maresch
- Clinical Research Unit, Centre of Internal Medicine, Justus-Liebig-University (JLU), Giessen, Germany
| | - Sebastian Friedrich Petry
- Clinical Research Unit, Centre of Internal Medicine, Justus-Liebig-University (JLU), Giessen, Germany
| | - Agnieszka Paradowska-Dogan
- Department of Gynecological Endocrinology and Reproductive Medicine, University Clinic Bonn, Bonn, Germany
| | - Sudhanshu Bhushan
- Institute of Anatomy and Cell Biology, Department of Reproductive Biology, JLU, Giessen, Germany
| | - Yongsheng Chang
- Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China
| | - Christine Wrenzycki
- Department of Molecular Reproductive Medicine, Clinic for Veterinary Obstetrics, Gynecology and Andrology, and
| | | | - Petr Houska
- Clinical Research Unit, Centre of Internal Medicine, Justus-Liebig-University (JLU), Giessen, Germany.,ANOVA, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Michaela F Hartmann
- Steroid Research and Mass Spectrometry Unit, Division of Pediatric Endocrinology and Diabetology, Center of Child and Adolescent Medicine, JLU, Giessen, Germany
| | - Stefan A Wudy
- Steroid Research and Mass Spectrometry Unit, Division of Pediatric Endocrinology and Diabetology, Center of Child and Adolescent Medicine, JLU, Giessen, Germany
| | - Lanbo Shi
- Public Health Research Institute, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
| | - Thomas Linn
- Clinical Research Unit, Centre of Internal Medicine, Justus-Liebig-University (JLU), Giessen, Germany
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Zaletel Benda P, Vratanar B, Petrovski G, Gavrić AU, Matović K, Gornik A, Vergot K, Lumi A, Lumi X. Prognostic Factor Analysis of Visual Outcome after Vitrectomy for Rhegmatogenous Retinal Detachment. J Clin Med 2020; 9:jcm9103251. [PMID: 33053642 PMCID: PMC7601405 DOI: 10.3390/jcm9103251] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 10/06/2020] [Accepted: 10/10/2020] [Indexed: 11/16/2022] Open
Abstract
Pars plana vitrectomy (PPV) is a surgical approach mainly chosen for complex rhegmatogenous retinal detachment (RRD) repair with highly variable functional results. The aim of this analysis was to evaluate the impact of preoperative factors and postoperative optical coherence tomography (OCT) macular findings on the functional outcome of patients undergoing primary PPV for RRD. A retrospective analysis was performed on 88 eyes of 88 patients with complex RRD managed by PPV. A swept source OCT was used to obtain images at the postoperative visit at least 6 months after PPV. Hierarchical linear regression model was used to evaluate the influence of preoperative factors related to patient, ocular clinical and postoperative OCT macular findings on functional outcomes of PPV for RRD. Duration of symptoms (p = 0.031) and discontinuity of the ellipsoid zone (EZ) on OCT (p = 0.024) showed statistically significant negative correlation, while preoperative best-corrected visual acuity (BCVA; p < 0.001) showed statistically significant positive correlation to postoperative BCVA. Preoperative BCVA and duration of symptoms can be used as prognostic factors for visual outcome in patients undergoing PPV for RRD. Discontinuity of the EZ was the only postoperative OCT variable related to worse postoperative visual outcome.
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Affiliation(s)
- Polona Zaletel Benda
- Eye Hospital, University Medical Centre Ljubljana, Grablovičeva 46, 1000 Ljubljana, Slovenia; (P.Z.B.); (A.U.G.); (K.M.); (A.G.); (K.V.); (A.L.)
| | - Bor Vratanar
- Institute for Biostatistics and Medical Informatics, Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia;
| | - Goran Petrovski
- Center for Eye Research, Department of Ophthalmology, Oslo University Hospital and Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0450 Oslo, Norway;
| | - Ana Uršula Gavrić
- Eye Hospital, University Medical Centre Ljubljana, Grablovičeva 46, 1000 Ljubljana, Slovenia; (P.Z.B.); (A.U.G.); (K.M.); (A.G.); (K.V.); (A.L.)
| | - Katja Matović
- Eye Hospital, University Medical Centre Ljubljana, Grablovičeva 46, 1000 Ljubljana, Slovenia; (P.Z.B.); (A.U.G.); (K.M.); (A.G.); (K.V.); (A.L.)
| | - Ana Gornik
- Eye Hospital, University Medical Centre Ljubljana, Grablovičeva 46, 1000 Ljubljana, Slovenia; (P.Z.B.); (A.U.G.); (K.M.); (A.G.); (K.V.); (A.L.)
| | - Katarina Vergot
- Eye Hospital, University Medical Centre Ljubljana, Grablovičeva 46, 1000 Ljubljana, Slovenia; (P.Z.B.); (A.U.G.); (K.M.); (A.G.); (K.V.); (A.L.)
| | - Anila Lumi
- Eye Hospital, University Medical Centre Ljubljana, Grablovičeva 46, 1000 Ljubljana, Slovenia; (P.Z.B.); (A.U.G.); (K.M.); (A.G.); (K.V.); (A.L.)
| | - Xhevat Lumi
- Eye Hospital, University Medical Centre Ljubljana, Grablovičeva 46, 1000 Ljubljana, Slovenia; (P.Z.B.); (A.U.G.); (K.M.); (A.G.); (K.V.); (A.L.)
- Correspondence: ; Tel.: +38-615-221-900
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43
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Newton F, Megaw R. Mechanisms of Photoreceptor Death in Retinitis Pigmentosa. Genes (Basel) 2020; 11:genes11101120. [PMID: 32987769 PMCID: PMC7598671 DOI: 10.3390/genes11101120] [Citation(s) in RCA: 119] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/15/2020] [Accepted: 09/22/2020] [Indexed: 02/08/2023] Open
Abstract
Retinitis pigmentosa (RP) is the most common cause of inherited blindness and is characterised by the progressive loss of retinal photoreceptors. However, RP is a highly heterogeneous disease and, while much progress has been made in developing gene replacement and gene editing treatments for RP, it is also necessary to develop treatments that are applicable to all causative mutations. Further understanding of the mechanisms leading to photoreceptor death is essential for the development of these treatments. Recent work has therefore focused on the role of apoptotic and non-apoptotic cell death pathways in RP and the various mechanisms that trigger these pathways in degenerating photoreceptors. In particular, several recent studies have begun to elucidate the role of microglia and innate immune response in the progression of RP. Here, we discuss some of the recent progress in understanding mechanisms of rod and cone photoreceptor death in RP and summarise recent clinical trials targeting these pathways.
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Affiliation(s)
- Fay Newton
- MRC Human Genetics Unit, University of Edinburgh, South Bridge, Edinburgh EH8 9YL, UK;
- Correspondence:
| | - Roly Megaw
- MRC Human Genetics Unit, University of Edinburgh, South Bridge, Edinburgh EH8 9YL, UK;
- Princess Alexandra Eye Pavilion, NHS Lothian, Edinburgh EH3 9HA, UK
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44
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Casey GA, Papp KM, MacDonald IM. Ocular Gene Therapy with Adeno-associated Virus Vectors: Current Outlook for Patients and Researchers. J Ophthalmic Vis Res 2020; 15:396-399. [PMID: 32864069 PMCID: PMC7431728 DOI: 10.18502/jovr.v15i3.7457] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
In this "Perspective", we discuss ocular gene therapy - the patient's perspective, the various strategies of gene replacement and gene editing, the place of adeno-associated virus vectors, routes of delivery to the eye and the remaining question - "why does immunity continue to limit efficacy?" Through the coordinated efforts of patients, researchers, granting agencies and industry, and after many years of pre-clinical studies, biochemical, cellular, and animal models, we are seeing clinical trials emerge for many previously untreatable heritable ocular disorders. The pathway to therapies has been led by the successful treatment of the RPE65 form of Leber congenital amaurosis with LUXTURNA TM . In some cases, immune reactions to the vectors continue to occur, limiting efficacy. The underlying mechanisms of inflammation require further study, and new vectors need to be designed that limit the triggers of immunity. Researchers studying ocular gene therapies and clinicians enrolling patients in clinical trials must recognize the current limitations of these therapies to properly manage expectations and avoid disappointment, but we believe that gene therapies are well on their way to successful, widespread utilization to treat heritable ocular disorders.
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Affiliation(s)
- Geoffrey A Casey
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Canada
| | | | - Ian M MacDonald
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Canada.,Department of Ophthalmology, Faculty of Medicine and Dentistry, University of Alberta, Canada
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45
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Blockade of Adenosine A 2A Receptor Protects Photoreceptors after Retinal Detachment by Inhibiting Inflammation and Oxidative Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:7649080. [PMID: 32714489 PMCID: PMC7354651 DOI: 10.1155/2020/7649080] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 05/19/2020] [Accepted: 06/03/2020] [Indexed: 12/20/2022]
Abstract
Purpose Adenosine A2A receptor (A2AR) signaling is neuroprotective in some retinal damage models, but its role in neuronal survival during retinal detachment (RD) is unclear. We tested the hypothesis that A2AR antagonist ZM241385 would prevent photoreceptor apoptosis by inhibiting retinal inflammation and oxidative stress after RD. Methods The A2AR antagonist ZM241385 was delivered daily to C57BL/6J mice for three days at a dose (3 mg/kg, i.p.) starting 2 hours prior to creating RD. A2AR expression, microglia proliferation and reactivity, glial fibrillary acidic protein (GFAP) accumulation, IL-1β expression, and reactive oxygen species (ROS) production were evaluated with immunofluorescence. Photoreceptor TUNEL was analyzed. Results A2AR expression obviously increased and accumulated in microglia and Müller cells in the retinas after RD. The A2AR antagonist ZM241385 effectively inhibited retinal microglia proliferation and reactivity, decreased GFAP upregulation and proinflammatory cytokine IL-1β expression of Müller cells, and suppressed ROS overproduction, resulting in attenuation of photoreceptor apoptosis after RD. Conclusions The A2AR antagonist ZM241385 is an effective suppressor of microglia proliferation and reactivity, gliosis, neuroinflammation, oxidative stress, and photoreceptor apoptosis in a mouse model of RD. This suggests that A2AR blockade may be an important therapeutic strategy to protect photoreceptors in RD and other CNS diseases that share a common etiology.
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46
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McKay KM, Vingopoulos F, Wang JC, Papakostas TD, Silverman RF, Marmalidou A, Lains I, Eliott D, Vavvas DG, Kim LA, Wu DM, Miller JB. Retinal Microvasculature Changes After Repair of Macula-off Retinal Detachment Assessed with Optical Coherence Tomography Angiography. Clin Ophthalmol 2020; 14:1759-1767. [PMID: 32616995 PMCID: PMC7326212 DOI: 10.2147/opth.s214623] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 05/12/2020] [Indexed: 11/23/2022] Open
Abstract
Objective To characterize the microvascular retinal changes after repair of macula-off rhegmatogenous retinal detachment (RRD) using optical coherence tomography angiography (OCT-A). Patients and Methods A retrospective review of patients who underwent repair of macula-off RRD. Fellow unaffected eyes were used as controls. Post-operative OCT-A allowed comparison of vessel density (VD) and foveal avascular zone (FAZ) area in the superficial and deep retinal capillary plexus (DCP) as well as VD in the choriocapillaris layer. Results Seventeen eyes of 17 RRD patients were included in the final analysis. There was a reduction in VD of the deep retinal capillary plexus in affected eyes compared to fellow eyes (p = 0.046). RRD eyes with reduced VD in DCP compared with their fellow control eyes had worse visual acuity after repair compared to those without (p = 0.032). No significant microvasculature changes were detected in the FAZ area and VD in the superficial capillary plexus and choriocapillaris compared to fellow eyes. Conclusion In macula-off RRD eyes, significant microvascular changes were detected in the DCP using OCT-A even after successful anatomical repair. Decreased VD in the DCP compared to the fellow healthy eyes was correlated with worse visual acuity.
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Affiliation(s)
- K Matthew McKay
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Filippos Vingopoulos
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Jay C Wang
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Thanos D Papakostas
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA.,Retina Service, Weill Cornell Medical College, New York, NY, USA
| | - Rebecca F Silverman
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Anna Marmalidou
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Inês Lains
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Dean Eliott
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Demetrios G Vavvas
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Leo A Kim
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - David M Wu
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - John B Miller
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
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Ross BX, Choi J, Yao J, Hager HM, Abcouwer SF, Zacks DN. Loss of High-Mobility Group Box 1 (HMGB1) Protein in Rods Accelerates Rod Photoreceptor Degeneration After Retinal Detachment. Invest Ophthalmol Vis Sci 2020; 61:50. [PMID: 32460314 PMCID: PMC7405795 DOI: 10.1167/iovs.61.5.50] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/13/2020] [Indexed: 02/07/2023] Open
Abstract
Purpose Retinal detachment (RD) disrupts the nutritional support and oxygen delivery to photoreceptors (PRs), ultimately causing cell death. High-mobility group box 1 (HMGB1) can serve as an extracellular alarmin when released from stressed cells. PRs release HMGB1 after RD. The purpose of this study was to investigate the relationship between HMGB1 and PR survival after RD. Methods Acute RD was created by injection of hyaluronic acid (1%) into the subretinal space in C57BL/6 mice and mice with a rhodopsin-Cre-mediated conditional knockout (cKO) of HMGB1 in rods (HMGB1ΔRod). Immunofluorescence (IF) in retinal sections was used to localize HMGB1, rhodopsin, and Iba-1 proteins. Optical coherence tomography and electroretinography were used to quantify retinal thickness and function, respectively. The morphology of the retina was assessed by hematoxylin and eosin. Results HMGB1 protein was localized to the nuclei of all retinal neurons, including PRs, with cones staining more intensely than rods. HMGB1 protein was also found in the inner and outer segments of cones but not rods. Creation of RD caused a dramatic increase of HMGB1 protein IF in rods. cKO of HMGB1 in rods did not affect retinal structure or function. However, after RD, loss of rods and reduction in the thickness of the outer nuclear layer were significantly increased in the HMGB1ΔRod retinas as compared to the control. Interestingly, depletion of HMGB1 in rods did not affect the activation and mobilization of microglia/macrophages normally seen after RD. Conclusions Increased HMGB1 expression in stressed rods may represent an intrinsic mechanism regulating their survival after RD.
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Affiliation(s)
- Bing X. Ross
- Kellogg Eye Center, University of Michigan Medical School, Ann Arbor, Michigan, United States
| | - Joanne Choi
- Kellogg Eye Center, University of Michigan Medical School, Ann Arbor, Michigan, United States
| | - Jingyu Yao
- Kellogg Eye Center, University of Michigan Medical School, Ann Arbor, Michigan, United States
| | - Heather M. Hager
- Kellogg Eye Center, University of Michigan Medical School, Ann Arbor, Michigan, United States
| | - Steven F. Abcouwer
- Kellogg Eye Center, University of Michigan Medical School, Ann Arbor, Michigan, United States
| | - David N. Zacks
- Kellogg Eye Center, University of Michigan Medical School, Ann Arbor, Michigan, United States
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Sato K, Mochida S, Tomimoto D, Konuma T, Kiyota N, Tsuda S, Shiga Y, Omodaka K, Nakazawa T. A pyruvate dehydrogenase kinase inhibitor prevents retinal cell death and improves energy metabolism in rat retinas after ischemia/reperfusion injury. Exp Eye Res 2020; 193:107997. [PMID: 32165157 DOI: 10.1016/j.exer.2020.107997] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 03/06/2020] [Accepted: 03/06/2020] [Indexed: 12/19/2022]
Abstract
We aimed to assess the neuroprotective effect of a pyruvate dehydrogenase kinase (PDK) inhibitor, Nov3r after ischemia/reperfusion (IR) injury in rats. IR injury was induced by applying 150 mmHg of intraocular pressure for 50 min. Nov3r was orally administered (100 mg/kg) 3 h before and 24 h after IR injury. TUNEL-positive cells increased and immunoreactive RBPMS-positive cells decreased in the rat retinas after IR injury. Administration of Nov3r significantly ameliorated the increase in TUNEL-positive cells and prevented the RBPMS-positive cell decrease. Similarly, the number of IR-induced Iba1-positive microglial cells was significantly reduced with Nov3r treatment. Among metabolic parameters, IR damage induced the elevation of lactate and pyruvate, and the reduction of ATP. Oral administration of Nov3r ameliorated these changes. Our data suggest that the Nov3r had a retinal neuroprotective effect in IR injury in rats. This finding suggests that the regulation of pyruvate dehydrogenase (PDH) activity has potential therapeutic value by enabling metabolic reprograming in diseases associated with ischemic retinal damage, such as diabetic retinopathy, retinopathy of prematurity, retinal vein occlusion, ischemic optic neuropathy and glaucoma.
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Affiliation(s)
- Kota Sato
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan; Collaborative Program for Ophthalmic Drug Discovery, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Seiya Mochida
- Biological/Pharmacological Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 1-1 Murasaki-cho, Takatsuki, Osaka, Japan
| | - Daisuke Tomimoto
- Biological/Pharmacological Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 1-1 Murasaki-cho, Takatsuki, Osaka, Japan
| | - Takahiro Konuma
- Biological/Pharmacological Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., 1-1 Murasaki-cho, Takatsuki, Osaka, Japan
| | - Naoki Kiyota
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Satoru Tsuda
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Yukihiro Shiga
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Kazuko Omodaka
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Toru Nakazawa
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Miyagi, Japan; Collaborative Program for Ophthalmic Drug Discovery, Tohoku University Graduate School of Medicine, Miyagi, Japan; Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Miyagi, Japan; Department of Advanced Ophthalmic Medicine, Tohoku University Graduate School of Medicine, Miyagi, Japan; Department of Ophthalmic Imaging and Information Analytics, Tohoku University Graduate School of Medicine, Miyagi, Japan.
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Chaudhary R, Scott RAH, Wallace G, Berry M, Logan A, Blanch RJ. Inflammatory and Fibrogenic Factors in Proliferative Vitreoretinopathy Development. Transl Vis Sci Technol 2020; 9:23. [PMID: 32742753 PMCID: PMC7357815 DOI: 10.1167/tvst.9.3.23] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Purpose Proliferative vitreoretinopathy (PVR) occurs in 5%-10% of rhegmatogenous retinal detachment cases and is the principle cause for failure of retinal reattachment surgery. Although there are a number of surgical adjunctive agents available for preventing the development of PVR, all have limited efficacy. Discovering predictive molecular biomarkers to determine the probability of PVR development after retinal reattachment surgery will allow better patient stratification for more targeted drug evaluations. Methods Narrative literature review. Results We provide a summary of the inflammatory and fibrogenic factors found in ocular fluid samples during the development of retinal detachment and PVR and discuss their possible use as molecular PVR predictive biomarkers. Conclusions Studies monitoring the levels of the above factors have found that few if any have predictive biomarker value, suggesting that widening the phenotype of potential factors and a combinatorial approach are required to determine predictive biomarkers for PVR. Translational Relevance The identification of relevant biomarkers relies on an understanding of disease signaling pathways derived from basic science research. We discuss the extent to which those molecules identified as biomarkers and predictors of PVR relate to disease pathogenesis and could function as useful disease predictors. (http://www.umin.ac.jp/ctr/ number, UMIN000005604).
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Affiliation(s)
- Rishika Chaudhary
- Academic Unit of Ophthalmology, Birmingham and Midland Eye Centre, Birmingham, UK.,Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.,NIHR Surgical Reconstruction and Microbiology Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | | | - Graham Wallace
- Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Martin Berry
- Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Ann Logan
- Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.,NIHR Surgical Reconstruction and Microbiology Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Richard J Blanch
- Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.,NIHR Surgical Reconstruction and Microbiology Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.,Department of Ophthalmology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.,Academic Unit of Military Surgery and Trauma, Royal Centre for Defence Medicine, Birmingham, UK
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Gui F, You Z, Fu S, Wu H, Zhang Y. Endothelial Dysfunction in Diabetic Retinopathy. Front Endocrinol (Lausanne) 2020; 11:591. [PMID: 33013692 PMCID: PMC7499433 DOI: 10.3389/fendo.2020.00591] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 07/20/2020] [Indexed: 12/21/2022] Open
Abstract
Diabetic retinopathy (DR) is a diabetic complication which affects retinal function and results in severe loss of vision and relevant retinal diseases. Retinal vascular dysfunction caused by multifactors, such as advanced glycosylation end products and receptors, pro-inflammatory cytokines and chemokines, proliferator-activated receptor-γ disruption, growth factors, oxidative stress, and microRNA. These factors promote retinal endothelial dysfunction, which results in the development of DR. In this review, we summarize the contributors in the pathophysiology of DR for a better understanding of the molecular and cellular mechanism in the development of DR with a special emphasis on retinal endothelial dysfunction.
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