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Liao M, Zhu X, Lu Y, Yi X, Hu Y, Zhao Y, Ye Z, Guo X, Liang M, Jin X, Zhang H, Wang X, Zhao Z, Chen Y, Yan H. Multi-omics profiling of retinal pigment epithelium reveals enhancer-driven activation of RANK-NFATc1 signaling in traumatic proliferative vitreoretinopathy. Nat Commun 2024; 15:7324. [PMID: 39183203 PMCID: PMC11345415 DOI: 10.1038/s41467-024-51624-y] [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: 10/13/2023] [Accepted: 08/13/2024] [Indexed: 08/27/2024] Open
Abstract
During the progression of proliferative vitreoretinopathy (PVR) following ocular trauma, previously quiescent retinal pigment epithelial (RPE) cells transition into a state of rapid proliferation, migration, and secretion. The elusive molecular mechanisms behind these changes have hindered the development of effective pharmacological treatments, presenting a pressing clinical challenge. In this study, by monitoring the dynamic changes in chromatin accessibility and various histone modifications, we chart the comprehensive epigenetic landscape of RPE cells in male mice subjected to traumatic PVR. Coupled with transcriptomic analysis, we reveal a robust correlation between enhancer activation and the upregulation of the PVR-associated gene programs. Furthermore, by constructing transcription factor regulatory networks, we identify the aberrant activation of enhancer-driven RANK-NFATc1 pathway as PVR advanced. Importantly, we demonstrate that intraocular interventions, including nanomedicines inhibiting enhancer activity, gene therapies targeting NFATc1 and antibody therapeutics against RANK pathway, effectively mitigate PVR progression. Together, our findings elucidate the epigenetic basis underlying the activation of PVR-associated genes during RPE cell fate transitions and offer promising therapeutic avenues targeting epigenetic modulation and the RANK-NFATc1 axis for PVR management.
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Affiliation(s)
- Mengyu Liao
- Department of Ophthalmology, Tianjin Medical University General Hospital, International Joint Laboratory of Ocular Diseases (Ministry of Education), Tianjin Key Laboratory of Ocular Trauma, Tianjin Institute of Eye Health and Eye Diseases, China-UK "Belt and Road" Ophthalmology Joint Laboratory, Laboratory of Molecular Ophthalmology, Tianjin Medical University, Tianjin, China
| | - Xu Zhu
- The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), State Key Laboratory of Experimental Hematology, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Yumei Lu
- The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), State Key Laboratory of Experimental Hematology, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Xiaoping Yi
- The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), State Key Laboratory of Experimental Hematology, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Youhui Hu
- Department of Pharmacy, Xuzhou Medical University, Xuzhou, China
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Yumeng Zhao
- Department of Ophthalmology, Tianjin Medical University General Hospital, International Joint Laboratory of Ocular Diseases (Ministry of Education), Tianjin Key Laboratory of Ocular Trauma, Tianjin Institute of Eye Health and Eye Diseases, China-UK "Belt and Road" Ophthalmology Joint Laboratory, Laboratory of Molecular Ophthalmology, Tianjin Medical University, Tianjin, China
| | - Zhisheng Ye
- Department of Ophthalmology, Tianjin Medical University General Hospital, International Joint Laboratory of Ocular Diseases (Ministry of Education), Tianjin Key Laboratory of Ocular Trauma, Tianjin Institute of Eye Health and Eye Diseases, China-UK "Belt and Road" Ophthalmology Joint Laboratory, Laboratory of Molecular Ophthalmology, Tianjin Medical University, Tianjin, China
| | - Xu Guo
- Department of Ophthalmology, Tianjin Medical University General Hospital, International Joint Laboratory of Ocular Diseases (Ministry of Education), Tianjin Key Laboratory of Ocular Trauma, Tianjin Institute of Eye Health and Eye Diseases, China-UK "Belt and Road" Ophthalmology Joint Laboratory, Laboratory of Molecular Ophthalmology, Tianjin Medical University, Tianjin, China
| | - Minghui Liang
- Department of Ophthalmology, Tianjin Medical University General Hospital, International Joint Laboratory of Ocular Diseases (Ministry of Education), Tianjin Key Laboratory of Ocular Trauma, Tianjin Institute of Eye Health and Eye Diseases, China-UK "Belt and Road" Ophthalmology Joint Laboratory, Laboratory of Molecular Ophthalmology, Tianjin Medical University, Tianjin, China
- School of Medicine, Nankai University, Tianjin, China
| | - Xin Jin
- Eye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hong Zhang
- Eye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaohong Wang
- Department of Ophthalmology, Tianjin Medical University General Hospital, International Joint Laboratory of Ocular Diseases (Ministry of Education), Tianjin Key Laboratory of Ocular Trauma, Tianjin Institute of Eye Health and Eye Diseases, China-UK "Belt and Road" Ophthalmology Joint Laboratory, Laboratory of Molecular Ophthalmology, Tianjin Medical University, Tianjin, China
- Department of Pharmacology, Tianjin Key Laboratory of Inflammation Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Ziming Zhao
- Department of Pharmacy, Xuzhou Medical University, Xuzhou, China.
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China.
| | - Yupeng Chen
- The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), State Key Laboratory of Experimental Hematology, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China.
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.
| | - Hua Yan
- Department of Ophthalmology, Tianjin Medical University General Hospital, International Joint Laboratory of Ocular Diseases (Ministry of Education), Tianjin Key Laboratory of Ocular Trauma, Tianjin Institute of Eye Health and Eye Diseases, China-UK "Belt and Road" Ophthalmology Joint Laboratory, Laboratory of Molecular Ophthalmology, Tianjin Medical University, Tianjin, China.
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Fukuda Y, Ishikawa K, Kiyohara K, Maehara Y, Ji R, Mori K, Kobayashi Y, Akiyama M, Nakama T, Notomi S, Shiose S, Takeda A, Sonoda KH. Postoperative Proliferation Detection in Eyes Treated for Rhegmatogenous Retinal Detachment by WideField OCT Angiography. Transl Vis Sci Technol 2024; 13:13. [PMID: 39115838 PMCID: PMC11316450 DOI: 10.1167/tvst.13.8.13] [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: 04/26/2024] [Accepted: 06/29/2024] [Indexed: 08/12/2024] Open
Abstract
Purpose Proliferative retinal changes may occur postsurgery for rhegmatogenous retinal detachment (RRD), possibly preceding recurrent detachment. This study aims to establish the groundwork for an imaging system capable of discerning changes in retinal vessel tortuosity after RRD repair, analyzing widefield optical coherence tomography angiography (WF-OCTA) images. Methods Eighty-eight eyes of 86 patients with RRD who underwent surgical procedures and had repeated imaging with clear widefield optical coherence tomography (WF-OCT) and WF-OCTA on different postoperative days were enrolled in this retrospective study. We compared WF-OCTA images over time to identify alterations in retinal vessel tortuosity and observed regional changes in retinal morphology. Results After image processing, changes in retinal vessel tortuosity were detected in 66 quadrants. These changes, attributed to retinal traction from proliferative membranes, were observed in 56 quadrants, among which retinal thickness remained unchanged in seven sectors (12.5%) according to the WF-OCT map. In nine quadrants, changes in retinal vessel tortuosity were attributed to changes in subretinal fluid, aligning with observable variations in retinal thickness. Conclusions Observation of vessel tortuosity changes using WF-OCTA can help detect early postoperative proliferative changes in eyes with RRD. Translational Relevance Because WF-OCTA can detect minute vessel tortuosity changes, it can offer a noninvasive alternative for the detection of early postoperative proliferative changes.
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Affiliation(s)
- Yosuke Fukuda
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Keijiro Ishikawa
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kohei Kiyohara
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yusuke Maehara
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Rui Ji
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kenichiro Mori
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshiyuki Kobayashi
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masato Akiyama
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takahito Nakama
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Department of Ophthalmology, Aso Iizuka Hospital, Fukuoka, Japan
| | - Shoji Notomi
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Satomi Shiose
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Atsunobu Takeda
- 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
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Zhang J, Wu P, Wen Q. Optimization strategies for mesenchymal stem cell-based analgesia therapy: a promising therapy for pain management. Stem Cell Res Ther 2024; 15:211. [PMID: 39020426 PMCID: PMC11256674 DOI: 10.1186/s13287-024-03828-8] [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: 04/27/2024] [Accepted: 07/02/2024] [Indexed: 07/19/2024] Open
Abstract
Pain is a very common and complex medical problem that has a serious impact on individuals' physical and mental health as well as society. Non-steroidal anti-inflammatory drugs and opioids are currently the main drugs used for pain management, but they are not effective in controlling all types of pain, and their long-term use can cause adverse effects that significantly impair patients' quality of life. Mesenchymal stem cells (MSCs) have shown great potential in pain treatment. However, limitations such as the low proliferation rate of MSCs in vitro and low survival rate in vivo restrict their analgesic efficacy and clinical translation. In recent years, researchers have explored various innovative approaches to improve the therapeutic effectiveness of MSCs in pain treatment. This article reviews the latest research progress of MSCs in pain treatment, with a focus on methods to enhance the analgesic efficacy of MSCs, including engineering strategies to optimize the in vitro culture environment of MSCs and to improve the in vivo delivery efficiency of MSCs. We also discuss the unresolved issues to be explored in future MSCs and pain research and the challenges faced by the clinical translation of MSC therapy, aiming to promote the optimization and clinical translation of MSC-based analgesia therapy.
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Affiliation(s)
- Jing Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116000, China
| | - Ping Wu
- Department of Anesthesiology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116000, China.
| | - Qingping Wen
- Department of Anesthesiology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116000, China.
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4
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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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He Y, Tang H, Wu N, Gu P, Kuhn F, Yan H, Liu Y. Visual outcomes and prognostic factors of early pars plana vitrectomy for open globe injury. Eye (Lond) 2024; 38:1355-1361. [PMID: 38160215 PMCID: PMC11076590 DOI: 10.1038/s41433-023-02903-3] [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: 02/19/2023] [Revised: 11/26/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024] Open
Abstract
OBJECTIVES To identify the clinical features and outcomes of early vitrectomy in patients with open globe injury (OGI) and the prognostic factors for visual outcome. METHODS This retrospective observational case series included 390 eyes in 389 patients diagnosed with OGI receiving vitrectomy within four days after injury. Preoperative parameters included the injury types, wound locations, consequent tissue damages, initial visual acuity (VA), and ocular trauma score. Postoperative outcome measures included surgical procedures, retinal (re)attachment, complications, and final VA. The logistic analysis evaluated the prognostic factors for visual outcome. RESULTS Intraocular foreign bodies (59.2%) and penetrating injuries (28.7%) were the most common injury types. Among the 165 eyes with retinal detachment (RD), 121 (73.3%) had retinal reattachment during early primary vitrectomy, and 32 (19.4%) were repaired during a second or subsequent surgery. Thirteen eyes (3.3%) were enucleated. The final VA improved from the initial level in 207 eyes (55.2%), remained unchanged in 123 (32.8%), and decreased in 45 (12.0%). Multivariable regression revealed that the injury zone, initial VA, RD, and endophthalmitis were associated with poor visual outcomes (P < 0.05). CONCLUSIONS Higher zone injury, low initial VA, RD, and endophthalmitis are predictors of poor visual outcome in eyes undergoing early vitrectomy for OGI.
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Affiliation(s)
- Yan He
- Southwest Hospital, Army Medical University, Chongqing, 400038, China
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Huanyu Tang
- Southwest Hospital, Army Medical University, Chongqing, 400038, China
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Nan Wu
- Southwest Hospital, Army Medical University, Chongqing, 400038, China
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Peng Gu
- Southwest Hospital, Army Medical University, Chongqing, 400038, China
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Ferenc Kuhn
- Helen Keller Foundation for Research and Education, Birmingham, AL, USA
- Department of Ophthalmology, University of Pécs Medical School, Pécs, Hungary
| | - Hua Yan
- Department of Ophthalmology, Tianjin Medical University General Hospital, Tianjin, China
- Medical School of Nankai University, Tianjin, China
| | - Yong Liu
- Southwest Hospital, Army Medical University, Chongqing, 400038, China.
- Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China.
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Santiago CP, Gimmen MY, Lu Y, McNally MM, Duncan LH, Creamer TJ, Orzolek LD, Blackshaw S, Singh MS. Comparative Analysis of Single-cell and Single-nucleus RNA-sequencing in a Rabbit Model of Retinal Detachment-related Proliferative Vitreoretinopathy. OPHTHALMOLOGY SCIENCE 2023; 3:100335. [PMID: 37496518 PMCID: PMC10365955 DOI: 10.1016/j.xops.2023.100335] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 05/16/2023] [Accepted: 05/17/2023] [Indexed: 07/28/2023]
Abstract
Purpose Proliferative vitreoretinopathy (PVR) is the most common cause of failure of retinal reattachment surgery, and the molecular changes leading to this aberrant wound healing process are currently unknown. Our ultimate goal is to study PVR pathogenesis by employing single-cell transcriptomics to dissect cellular heterogeneity. Design Here we aimed to compare single-cell RNA sequencing (scRNA-seq) and single-nucleus RNA-sequencing (snRNA-seq) of retinal PVR samples in the rabbit model. Participants Unilateral induction of PVR lesions in rabbit eyes with contralateral eyes serving as controls. Methods Proliferative vitreoretinopathy was induced unilaterally in Dutch Belted rabbits. At different timepoints after PVR induction, retinas were dissociated into either cells or nuclei suspension and processed for scRNA-seq or snRNA-seq. Main Outcome Measures Single cell and nuclei transcriptomic profiles of retinas after PVR induction. Results Single-cell RNA sequencing and snRNA-seq were conducted on retinas at 4 hours and 14 days after disease induction. Although the capture rate of unique molecular identifiers and genes were greater in scRNA-seq samples, overall gene expression profiles of individual cell types were highly correlated between scRNA-seq and snRNA-seq. A major disparity between the 2 sequencing modalities was the cell type capture rate, however, with glial cell types overrepresented in scRNA-seq, and inner retinal neurons were enriched by snRNA-seq. Furthermore, fibrotic Müller glia were overrepresented in snRNA-seq samples, whereas reactive Müller glia were overrepresented in scRNA-seq samples. Trajectory analyses were similar between the 2 methods, allowing for the combined analysis of the scRNA-seq and snRNA-seq data sets. Conclusions These findings highlight limitations of both scRNA-seq and snRNA-seq analysis and imply that use of both techniques together can more accurately identify transcriptional networks critical for aberrant fibrogenesis in PVR than using either in isolation. Financial Disclosures Proprietary or commercial disclosure may be found after the references.
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Affiliation(s)
- Clayton P. Santiago
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, Baltimore, Maryland
| | - Megan Y. Gimmen
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, Baltimore, Maryland
| | - Yuchen Lu
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Minda M. McNally
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Leighton H. Duncan
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, Baltimore, Maryland
| | - Tyler J. Creamer
- Institute for Basic Biomedical Sciences, Johns Hopkins University, Baltimore, Maryland
| | - Linda D. Orzolek
- Institute for Basic Biomedical Sciences, Johns Hopkins University, Baltimore, Maryland
| | - Seth Blackshaw
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, Baltimore, Maryland
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Institute for Cell Engineering, Johns Hopkins University, Baltimore, Maryland
- Kavli Neuroscience Discovery Institute, Johns Hopkins University, Baltimore, Maryland
| | - Mandeep S. Singh
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
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Ramamurthy SR, Dave VP, Chou HD, Ozdek S, Parolini B, Dhawahir-Scala F, Wu WC, Ribot FMD, Chang A, Ruamviboonsuk P, Pathengay A, Pappuru RR. Retinotomies and retinectomies: A review of indications, techniques, results, and complications. Surv Ophthalmol 2023; 68:1038-1049. [PMID: 37406778 DOI: 10.1016/j.survophthal.2023.06.012] [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: 01/26/2023] [Revised: 06/19/2023] [Accepted: 06/26/2023] [Indexed: 07/07/2023]
Abstract
Retinotomy refers to "cutting" or "incising" the retina, whereas retinectomy denotes "excising" the retina. Retinotomies and retinectomies aid in tackling traction and retinal shortening that persist following membrane dissection and scleral buckling. We performed a literature search using Google Scholar and PubMed, followed by a review of the references procured. All relevant literature was studied in detail and summarized. We discuss the indications of retinotomies and retinectomies for relaxing retinal stiffness, accessing the subretinal space for choroidal neovascular membrane, hemorrhage and abscess clearance, drainage retinotomies to allow retinal flattening, radial retinotomies to release circumferential traction, harvesting free retinal grafts, and prophylactic chorioretinectomies in trauma.
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Affiliation(s)
- Srishti Raksheeth Ramamurthy
- Anant Bajaj Retina Institute, Kallam Anji Reddy Campus, LV Prasad Eye Institute, Hyderabad, India; Standard Chartered-LVPEI Academy for Eye Care Education, Kallam Anji Reddy Campus, LV Prasad Eye Institute, Hyderabad, India
| | - Vivek Pravin Dave
- Anant Bajaj Retina Institute, Kallam Anji Reddy Campus, LV Prasad Eye Institute, Hyderabad, India.
| | - Hung-Da Chou
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou Main Branch, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Sengul Ozdek
- Department of Ophthalmology, Gazi University School of Medicine, Ankara, Turkey
| | | | | | - Wei-Chi Wu
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou Main Branch, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | | | - Andrew Chang
- Sydney Retina Clinic & Sydney Eye Hospital, Sydney, NSW, Australia; The University of Sydney, Camperdown, NSW, Australia
| | - Paisan Ruamviboonsuk
- College of Medicine, Rangsit University, Lak Hok, Thailand; Center of Excellence for Vitreous and Retinal Disease, Rajavithi Hospital, Bangkok, Thailand
| | - Avinash Pathengay
- GMR Varalakshmi Campus, Retina and Uveitis Service, Anant Bajaj Retina Institute, Visakhapatnam, Andhra Pradesh, India
| | - Rajeev Reddy Pappuru
- Anant Bajaj Retina Institute, Kallam Anji Reddy Campus, LV Prasad Eye Institute, Hyderabad, India
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Koçak N, Erduran B, Yeter V. Predictive values of systemic inflammation biomarkers in proliferative vitreoretinopathy associated with primary rhegmatogenous retinal detachment. Clin Exp Optom 2023; 106:852-858. [PMID: 36375137 DOI: 10.1080/08164622.2022.2133596] [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: 02/20/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
CLINICAL RELEVANCE Proliferative vitreoretinopathy (PVR) is still the leading cause of surgical failure after rhegmatogenous retinal detachment (RRD) repair. The factors that can predict the development of PVR remain to be elucidated. BACKGROUND This study evaluates the predictive values of the systemic immune-inflammation index, neutrophil-to-lymphocyte ratio, and platelet-to-lymphocyte ratio in patients with primary RRD with and without PVR. METHODS A total of 150 patients with RRD and 51 age- and sex-matched healthy participants were included in the study. Patients who developed PVR within three months after surgery were enrolled as PVR cases (n = 75, Group 1), and those who did not develop PVR were enrolled in RRD without the PVR group (n = 75, Group 2). Ocular examination findings and medical records of all participants were analysed retrospectively. Peripheral blood samples were collected, and systemic immune-inflammation index, neutrophil-to-lymphocyte ratio, and platelet-to-lymphocyte ratios were calculated. The systemic immune-inflammation index calculation formula is: (Neutrophil/lymphocyte) × Platelet. RESULTS The median neutrophil-to-lymphocyte ratio and systemic immune-inflammation index levels were significantly higher in Group 1 patients compared to Group 2 and the control groups (p = 0.01, for both). However, the groups were similar regarding median platelet-to-lymphocyte ratio (p = 0.917). The optimal cut-off values of neutrophil-to-lymphocyte ratio and systemic immune-inflammation index were calculated as 1.72 (with 72% sensitivity and 48% specificity) and 407.9 (with 72% sensitivity and 49.3% specificity), respectively, for predicting PVR development in patients with RRD. CONCLUSION Neutrophil-to-lymphocyte ratio and systemic immune-inflammation index may be useful biomarkers for predicting the risk of PVR development in RRD patients.
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Affiliation(s)
- Nurullah Koçak
- Department of Ophthalmology, Ondokuzmayıs University Hospital, Samsun, Turkey
| | - Bilgehan Erduran
- Department of Ophthalmology, Ondokuzmayıs University Hospital, Samsun, Turkey
| | - Volkan Yeter
- Department of Ophthalmology, Ondokuzmayıs University Hospital, Samsun, Turkey
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Nasrolahi A, Khojasteh Pour F, Mousavi Salehi A, Kempisty B, Hajizadeh M, Feghhi M, Azizidoost S, Farzaneh M. Potential roles of lncRNA MALAT1-miRNA interactions in ocular diseases. J Cell Commun Signal 2023:10.1007/s12079-023-00787-2. [PMID: 37870615 DOI: 10.1007/s12079-023-00787-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 10/09/2023] [Indexed: 10/24/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are non-protein coding transcripts that are longer than 200 nucleotides in length. LncRNAs are implicated in gene expression at the transcriptional, translational, and epigenetic levels, and thereby impact different cellular processes including cell proliferation, migration, apoptosis, angiogenesis, and immune response. In recent years, numerous studies have demonstrated the significant contribution of lncRNAs to the pathogenesis and progression of various diseases, such as stroke, heart disease, and cancer. Further investigations have shown that lncRNAs have altered expression patterns in ocular tissues and cell lines during pathological conditions. The pathogenesis of various ocular diseases, including glaucoma, cataract, corneal diseases, proliferative vitreoretinopathy, diabetic retinopathy, and retinoblastoma, is influenced by the involvement of specific lncRNAs which play a critical role in the development and progression of these diseases. Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is a well-researched lncRNA in the context of ocular diseases, which has been shown to exert its biological effects through several signaling pathways and downstream targets. The present review provides a comprehensive summary of the molecular mechanisms underlying the biological functions and roles of MALAT1 in ocular diseases.
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Affiliation(s)
- Ava Nasrolahi
- Infectious Ophthalmologic Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Fatemeh Khojasteh Pour
- Department of Obstetrics and Gynecology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Abdolah Mousavi Salehi
- Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Bartosz Kempisty
- Department of Human Morphology and Embryology, Division of Anatomy, Wroclaw Medical University, Wrocław, Poland
- Institute of Veterinary Medicine, Department of Veterinary Surgery, Nicolaus Copernicus University, Torun, Poland
- North Carolina State University College of Agriculture and Life Sciences, Raleigh, NC, 27695, USA
| | - Maryam Hajizadeh
- Infectious Ophthalmologic Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Ophthalmology, Imam Khomeini Hospital, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mostafa Feghhi
- Infectious Ophthalmologic Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Ophthalmology, Imam Khomeini Hospital, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Shirin Azizidoost
- Atherosclerosis Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Maryam Farzaneh
- Fertility, Infertility and Perinatology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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10
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Yin Y, Liu S, Liu H, Wu W. Nintedanib inhibits normal human vitreous-induced epithelial-mesenchymal transition in human retinal pigment epithelial cells. Biomed Pharmacother 2023; 166:115403. [PMID: 37659204 DOI: 10.1016/j.biopha.2023.115403] [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: 06/20/2023] [Revised: 08/18/2023] [Accepted: 08/28/2023] [Indexed: 09/04/2023] Open
Abstract
PURPOSE In this study, we aim to investigate the potential of nintedanib as a therapeutic approach to proliferative vitreoretinopathy (PVR), which is the leading cause of failure in retinal detachment repair. PVR is characterized by the epithelial-mesenchymal transition (EMT) of retinal pigment epithelial (RPE) cells, and understanding the effects of nintedanib on EMT in the normal human vitreous (HV)-induced RPE cells is crucial. METHODS Our research focuses on assessing the impact of nintedanib on HV-induced EMT in human retinal pigment epithelial (ARPE-19) cells in vitro. We employed various techniques, including quantitative real-time PCR (qPCR), western blot analysis, and immunofluorescence staining, to evaluate the mRNA and protein expression of EMT biomarkers in HV-induced ARPE-19 cells. Additionally, we measured the proliferation of RPE cells using cell counting, CCK-8, and Ki-67 assays. Migration was assessed through wound healing and transwell migration assays, while contraction was determined using a collagen gel contraction assay. Morphological changes were examined using phase-contrast microscopy. RESULTS Our results demonstrate that nintedanib selectively attenuates the upregulation of mesenchymal markers in HV-induced ARPE-19 cells, at both the mRNA and protein levels. Furthermore, nintedanib effectively suppresses the HV-induced proliferation, migration, and contraction of ARPE-19 cells, while maintaining the cells' basal activity. These findings strongly suggest that nintedanib exhibits protective effects against EMT in ARPE-19 cells and could be a promising therapeutic option for PVR. CONCLUSIONS By elucidating the anti-EMT effects of nintedanib in HV-induced RPE cells, our study highlights the potential of this oral triple tyrosine kinase inhibitor in the treatment of PVR. These findings contribute to the growing body of research aimed at developing novel strategies to prevent and manage PVR, ultimately improving the success rates of retinal detachment repair.
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Affiliation(s)
- Yiwei Yin
- Department of Ophthalmology, Hunan Key Laboratory of Ophthalmology, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China; Department of Pharmacy, Third Xiangya Hospital, Central South University, Changsha, China
| | - Shikun Liu
- Department of Pharmacy, Third Xiangya Hospital, Central South University, Changsha, China
| | - Hanhan Liu
- Department of Ophthalmology, Third Xiangya Hospital, Central South University, Changsha, China.
| | - Wenyi Wu
- Department of Ophthalmology, Hunan Key Laboratory of Ophthalmology, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China.
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11
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Gahon M, Luc A, Zessler A, Pastor G, Angioi-Duprez K, Thilly N, Berrod JP, Conart JB. Intravitreal Injection of Bevacizumab for the Prevention of Postoperative Proliferative Vitreoretinopathy in High-Risk Patients Selected by Laser Flare Photometry. Ophthalmologica 2023; 246:306-313. [PMID: 37769629 DOI: 10.1159/000533750] [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: 03/30/2023] [Accepted: 08/05/2023] [Indexed: 10/03/2023]
Abstract
INTRODUCTION To evaluate the effect of an intravitreal injection of bevacizumab at the time of rhegmatogenous retinal detachment (RRD) surgery, on postoperative proliferative vitreoretinopathy (PVR) in high-risk patients selected by laser flare photometry. METHODS This single-center observational retrospective cohort study included 137 consecutive patients who underwent pars plana vitrectomy and gas tamponade for primary RRD with increased aqueous flare between July 2016 and June 2021. From June 2019, an intravitreal injection of bevacizumab was administered as an adjunct to RRD repair. Patients who underwent surgery before this time and who did not receive intravitreal bevacizumab served as controls. The main outcome was the rate of retinal redetachment due to PVR. RESULTS The median flare value was 22.0 (16.5-36.5) pc/ms in the control group and 28.2 (19.7-41.0) pc/ms in the bevacizumab group (p = 0.063). Eyes treated with bevacizumab were more likely to have macula-off RRD (p = 0.003), grade B PVR (p = 0.038), and worse visual acuity (p = 0.004) than controls. The rate of PVR redetachment was significantly lower in the bevacizumab group (11.1%) than in the control (30.1%) (p = 0.012). This difference was more pronounced after adjusting for potential confounding factors (p = 0.005); the risk of developing PVR was 4.5-fold higher in controls (95% CI, 1.6-12.8). After adjustment, the final median visual acuity was also significantly higher in eyes treated with bevacizumab (p = 0.025). CONCLUSION This pilot study provides preliminary evidence that bevacizumab may reduce the risk of PVR-related recurrent RRD and improve visual outcomes in high-risk patients selected by laser flare photometry.
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Affiliation(s)
- Marie Gahon
- Department of Ophthalmology, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France
| | - Amandine Luc
- Methodology, Promotion and Investigation Department, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France
| | | | - Geoffrey Pastor
- Department of Ophthalmology, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France
| | - Karine Angioi-Duprez
- Department of Ophthalmology, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France
| | - Nathalie Thilly
- Methodology, Promotion and Investigation Department, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France
| | - Jean-Paul Berrod
- Department of Ophthalmology, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France
| | - Jean-Baptiste Conart
- Department of Ophthalmology, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France
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12
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Duan Y, Wu W, Cui J, Matsubara JA, Kazlauskas A, Ma G, Li X, Lei H. Ligand-independent activation of platelet-derived growth factor receptor β promotes vitreous-induced contraction of retinal pigment epithelial cells. BMC Ophthalmol 2023; 23:344. [PMID: 37537538 PMCID: PMC10401781 DOI: 10.1186/s12886-023-03089-8] [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: 12/27/2022] [Accepted: 07/17/2023] [Indexed: 08/05/2023] Open
Abstract
BACKGROUND Epiretinal membranes in patients with proliferative vitreoretinopathy (PVR) consist of extracellular matrix and a number of cell types including retinal pigment epithelial (RPE) cells and fibroblasts, whose contraction causes retinal detachment. In RPE cells depletion of platelet-derived growth factor (PDGF) receptor (PDGFR)β suppresses vitreous-induced Akt activation, whereas in fibroblasts Akt activation through indirect activation of PDGFRα by growth factors outside the PDGF family (non-PDGFs) plays an essential role in experimental PVR. Whether non-PDGFs in the vitreous, however, were also able to activate PDGFRβ in RPE cells remained elusive. METHODS The CRISPR/Cas9 technology was utilized to edit a genomic PDGFRB locus in RPE cells derived from an epiretinal membrane (RPEM) from a patient with PVR, and a retroviral vector was used to express a truncated PDGFRβ short of a PDGF-binding domain in the RPEM cells lacking PDGFRβ. Western blot was employed to analyze expression of PDGFRβ and α-smooth muscle actin, and signaling events (p-PDGFRβ and p-Akt). Cellular assays (proliferation, migration and contraction) were also applied in this study. RESULTS Expression of a truncated PDGFRβ lacking a PDGF-binding domain in the RPEM cells whose PDGFRB gene has been silent using the CRISPR/Cas9 technology restores vitreous-induced Akt activation as well as cell proliferation, epithelial-mesenchymal transition, migration and contraction. In addition, we show that scavenging reactive oxygen species (ROS) with N-acetyl-cysteine and inhibiting Src family kinases (SFKs) with their specific inhibitor SU6656 blunt the vitreous-induced activation of the truncated PDGFRβ and Akt as well as the cellular events related to the PVR pathogenesis. These discoveries suggest that in RPE cells PDGFRβ can be activated indirectly by non-PDGFs in the vitreous via an intracellular pathway of ROS/SFKs to facilitate the development of PVR, thereby providing novel opportunities for PVR therapeutics. CONCLUSION The data shown here will improve our understanding of the mechanism by which PDGFRβ can be activated by non-PDGFs in the vitreous via an intracellular route of ROS/SFKs and provide a conceptual foundation for preventing PVR by inhibiting PDGFRβ transactivation (ligand-independent activation).
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Affiliation(s)
- Yajian Duan
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wenyi Wu
- Department of Ophthalmology, Hunan Key Laboratory of Ophthalmology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South, Changsha, China
| | - Jing Cui
- Department of Ophthalmology and Visual Sciences, The University of British Columbia, Vancouver, Canada
| | - Joanne Aiko Matsubara
- Department of Ophthalmology and Visual Sciences, The University of British Columbia, Vancouver, Canada
| | - Andrius Kazlauskas
- Department of Ophthalmology, University of Illinois at Chicago, Chicago, USA
| | - Gaoen Ma
- Department of Ophthalmology, the Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453000, China
| | - Xiaorong Li
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China.
| | - Hetian Lei
- Department of Ophthalmology, the Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453000, China.
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Wang J, Zhao P, Chen Z, Wang H, Wang Y, Lin Q. Non-viral gene therapy using RNA interference with PDGFR-α mediated epithelial-mesenchymal transformation for proliferative vitreoretinopathy. Mater Today Bio 2023; 20:100632. [PMID: 37122836 PMCID: PMC10130499 DOI: 10.1016/j.mtbio.2023.100632] [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: 03/03/2023] [Revised: 04/07/2023] [Accepted: 04/09/2023] [Indexed: 05/02/2023] Open
Abstract
Fibrotic eye diseases, a series of severe oculopathy, that will destroy normal ocular refractive media and imaging structures. It is characterized by the transformation of the epithelial cells into mesenchyme cells. Proliferative vitreoretinopathy (PVR) is one of these representative diseases. In this investigation, polyethylene glycol grafted branched Polyethyleneimine (PEI-g-PEG) was used as a non-viral gene vector in gene therapy of PVR to achieve anti-fibroblastic effects in vitro and in vivo by interfering with platelet-derived growth factor alpha receptor (PDGFR-α) in the epithelial-mesenchymal transition (EMT) of retinal pigment epithelium (RPE) cells. The plasmid was wrapped by electrostatic conjugation. Physical characterization of the complexes indicated that the gene complexes were successfully prepared. In vitro, cellular experiments showed excellent biocompatibility of PEI-g-PEG, efficient cellular uptake of the gene complexes, and successful expression of the corresponding fragments. Through gene silencing technique, PEI-g-PEG/PDGFR-α shRNA successfully inhibited the process of EMT in vitro. Furthermore, in vivo animal experiments suggested that this method could effectively inhibit the progression of fibroproliferative membranes of PVR. Herein, a feasible and promising clinical idea was provided for developing non-viral gene vectors and preventing fibroblastic eye diseases by RNA interference (RNAi) technology.
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14
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Mete M, Parolini B, Maggio E, Airaghi G, De Santis N, Guerriero M, Pertile G. Use of Heavy Silicon Oil as Intraocular Tamponade for Inferior Retinal Detachment Complicated by Proliferative Vitreoretinopathy: A Multicentric Experience. Ophthalmologica 2023; 246:209-218. [PMID: 37245503 DOI: 10.1159/000531141] [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: 01/23/2023] [Accepted: 05/12/2023] [Indexed: 05/30/2023]
Abstract
INTRODUCTION This is a multicentric study on the use of heavy silicon oil (HSO) as an intraocular tamponade for inferior retinal detachment (RD) complicated by proliferative vitreoretinopathy (PVR). METHODS 139 eyes treated for RD with PVR were included in the study. 10 (7.2%) were affected by primary RD with inferior PVR, while 129 (92.8%) were affected by recurrent RD with inferior PVR. 102 eyes (73.9%) had received a silicon oil (SO) tamponade in a previous intervention prior to receiving HSO. Mean follow-up was 36.5 (standard deviation = 32.3) months. RESULTS The median interval between HSO injection and removal was 4 months (interquartile range: 3). At the time of HSO removal, the retina was attached in 120 eyes (87.6%), whereas in 17 eyes (12.4%), it had re-detached while the HSO was in situ. 32 eyes (23.2%) showed recurrent RD. A subsequent RD relapse was observed in 14.2% of cases with no RD at the time of HSO removal, and in 88.2% if an RD was present at the time of HSO removal. Advancing age showed a positive association with retinal attachment at the end of follow-up, while the risk of RD relapse at the end of the follow-up showed a significant negative association with HSO tamponade duration and with the use of SO rather than air or gas as post-HSO tamponade materials. Mean best corrected visual acuity was 1.1 logarithm of minimum angle of resolution at all follow-up time points. 56 cases (40.3%) needed treatment for elevated intraocular pressure (IOP), with which no clinically relevant variables were associated during follow-up. CONCLUSION HSO represents a safe and effective tamponade in cases of inferior RD with PVR. The presence of RD at the time of HSO removal is a negative prognostic factor for the development of a subsequent RD relapse. According to our findings, in cases of RD at the time of HSO removal, a short-term tamponade should definitely be avoided, in favor of SO. Special attention must be paid to the risk of IOP elevation, and patients should be closely monitored.
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Affiliation(s)
- Maurizio Mete
- Department of Ophthalmology, IRRCS Sacro Cuore-Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | | | - Emilia Maggio
- Department of Ophthalmology, IRRCS Sacro Cuore-Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Giulia Airaghi
- Department of Ophthalmology, ASST Valle Olona, Varese, Italy
| | - Nicoletta De Santis
- Clinic Research Unit, URC, IRRCS Sacro Cuore-Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Massimo Guerriero
- Clinic Research Unit, URC, IRRCS Sacro Cuore-Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Grazia Pertile
- Department of Ophthalmology, IRRCS Sacro Cuore-Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
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15
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Nowroozzadeh MH, Ghazanfari S, Sanie-Jahromi F. Human Wharton's Jelly Mesenchymal Stem Cell Secretome Modifies the Processes of Neuroprotection and Epithelial-Mesenchymal Transition in Retinal Pigment Epithelium at Transcriptional Level. Mol Biol Rep 2023:10.1007/s11033-023-08496-0. [PMID: 37217618 DOI: 10.1007/s11033-023-08496-0] [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: 01/25/2023] [Accepted: 04/28/2023] [Indexed: 05/24/2023]
Abstract
BACKGROUND Retinal pigment epithelium (RPE) cells are potential targets for treating retinal detachment (RD) and proliferative vitreoretinopathy (PVR), considering the importance of neuroprotection and epithelial-mesenchymal transition (EMT) of RPE in these conditions. This study investigated the effect of human Wharton's jelly mesenchymal stem cell secretome (WJMSC-S) on the expression of genes involved in both neuroprotection and EMT in RPE cells in vitro (TRKB, MAPK, PI3K, BDNF, and NGF). METHODS RPE cells from passages 5-7 were treated with WJMSC-S (or the vehicle culture medium as control) for 24 h at 37◦C and subsequently subjected to RNA extraction and cDNA synthesis. Gene expression level was evaluated using real-time PCR in the treated versus control cells. RESULTS The results of our study showed that WJMSC-S led to a significant downregulation in three out of five studied gene expression (MAPK, TRKB, and NGF), and simultaneously, remarkably upregulated the expression of the BDNF gene. CONCLUSIONS According to the present data, WJMSC-S can affect the EMT and neuroprotection processes at the mRNA level by suppressing EMT and promoting neuroprotection in RPE cells. This finding may have positive clinical implications in the context of RD and PVR.
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Affiliation(s)
- M Hossein Nowroozzadeh
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Zand Boulevard, Poostchi Street, Shiraz, Iran
| | - Shiva Ghazanfari
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Zand Boulevard, Poostchi Street, Shiraz, Iran
| | - Fatemeh Sanie-Jahromi
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Zand Boulevard, Poostchi Street, Shiraz, Iran.
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16
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Sharma A, Singh NK. Long Non-Coding RNAs and Proliferative Retinal Diseases. Pharmaceutics 2023; 15:pharmaceutics15051454. [PMID: 37242701 DOI: 10.3390/pharmaceutics15051454] [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: 03/14/2023] [Revised: 04/21/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Retinopathy refers to disorders that affect the retina of the eye, which are frequently caused by damage to the retina's vascular system. This causes leakage, proliferation, or overgrowth of blood vessels through the retina, which can lead to retinal detachment or breakdown, resulting in vision loss and, in rare cases, blindness. In recent years, high-throughput sequencing has significantly hastened the discovery of new long non-coding RNAs (lncRNAs) and their biological functions. LncRNAs are rapidly becoming recognized as critical regulators of several key biological processes. Current breakthroughs in bioinformatics have resulted in the identification of several lncRNAs that may have a role in retinal disorders. Nevertheless, mechanistic investigations have yet to reveal the relevance of these lncRNAs in retinal disorders. Using lncRNA transcripts for diagnostic and/or therapeutic purposes may aid in the development of appropriate treatment regimens and long-term benefits for patients, as traditional medicines and antibody therapy only provide temporary benefits that must be repeated. In contrast, gene-based therapies can provide tailored, long-term treatment solutions. Here, we will discuss how different lncRNAs affect different retinopathies, including age-related macular degeneration (AMD), diabetic retinopathy (DR), central retinal vein occlusion (CRVO), proliferative vitreoretinopathy (PVR), and retinopathy of prematurity (ROP), which can cause visual impairment and blindness, and how these retinopathies can be identified and treated using lncRNAs.
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Affiliation(s)
- Anamika Sharma
- Integrative Biosciences Center, Wayne State University, Detroit, MI 48202, USA
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, MI 48202, USA
| | - Nikhlesh K Singh
- Integrative Biosciences Center, Wayne State University, Detroit, MI 48202, USA
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, MI 48202, USA
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17
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Lumi X, Confalonieri F, Ravnik-Glavač M, Goričar K, Blagus T, Dolžan V, Petrovski G, Hawlina M, Glavač D. Inflammation and Oxidative Stress Gene Variability in Retinal Detachment Patients with and without Proliferative Vitreoretinopathy. Genes (Basel) 2023; 14:genes14040804. [PMID: 37107562 PMCID: PMC10137369 DOI: 10.3390/genes14040804] [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: 02/28/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023] Open
Abstract
This study investigated the association between certain genetic variations and the risk of developing proliferative vitreoretinopathy (PVR) after surgery. The study was conducted on 192 patients with primary rhegmatogenous retinal detachment (RRD) who underwent 3-port pars plana vitrectomy (PPV). The distribution of single nucleotide polymorphisms (SNPs) located in genes involved in inflammation and oxidative stress associated with PVR pathways were analyzed among patients with and without postoperative PVR grade C1 or higher. A total of 7 defined SNPs of 5 genes were selected for genotyping: rs4880 (SOD2); rs1001179 (CAT); rs1050450 (GPX1); rs1143623, rs16944, rs1071676 (IL1B); rs2910164 (MIR146A) using competitive allele-specific polymerase chain reaction. The association of SNPs with PVR risk was evaluated using logistic regression. Furthermore, the possible association of SNPs with postoperative clinical parameters was evaluated using non-parametric tests. The difference between two genotype frequencies between patients with or without PVR grade C1 or higher was found to be statistically significant: SOD2 rs4880 and IL1B rs1071676. Carriers of at least one polymorphic IL1B rs1071676 GG allele appeared to have better postoperative best-corrected visual acuity only in patients without PVR (p = 0.070). Our study suggests that certain genetic variations may play a role in the development of PVR after surgery. These findings may have important implications for identifying patients at higher risk for PVR and developing new treatments.
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Affiliation(s)
- Xhevat Lumi
- Eye Hospital, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia; (X.L.); (M.H.)
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Oslo University Hospital, 0450 Oslo, Norway; (F.C.); (G.P.)
- Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, 0315 Oslo, Norway
| | - Filippo Confalonieri
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Oslo University Hospital, 0450 Oslo, Norway; (F.C.); (G.P.)
- Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, 0315 Oslo, Norway
- Department of Biomedical Sciences, Humanitas University, 20090 Milan, Italy
| | - Metka Ravnik-Glavač
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia; (M.R.-G.); (K.G.); (T.B.); (V.D.)
| | - Katja Goričar
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia; (M.R.-G.); (K.G.); (T.B.); (V.D.)
| | - Tanja Blagus
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia; (M.R.-G.); (K.G.); (T.B.); (V.D.)
| | - Vita Dolžan
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia; (M.R.-G.); (K.G.); (T.B.); (V.D.)
| | - Goran Petrovski
- Center for Eye Research and Innovative Diagnostics, Department of Ophthalmology, Oslo University Hospital, 0450 Oslo, Norway; (F.C.); (G.P.)
- Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, 0315 Oslo, Norway
- Department of Ophthalmology, School of Medicine, University of Split, University Hospital Centre, 21 000 Split, Croatia
| | - Marko Hawlina
- Eye Hospital, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia; (X.L.); (M.H.)
| | - Damjan Glavač
- Department of Molecular Genetics, Institute of Pathology, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
- Center for Human Genetics & Pharmacogenomics, Faculty of Medicine, University of Maribor, 2000 Maribor, Slovenia
- Correspondence:
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18
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Yin Y, Liu S, Pu L, Luo J, Liu H, Wu W. Nintedanib prevents TGF-β2-induced epithelial-mesenchymal transition in retinal pigment epithelial cells. Biomed Pharmacother 2023; 161:114543. [PMID: 36933383 DOI: 10.1016/j.biopha.2023.114543] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/04/2023] [Accepted: 03/14/2023] [Indexed: 03/18/2023] Open
Abstract
Epithelial-mesenchymal transition (EMT) of retinal pigment epithelial (RPE) cells is a key fibrosis pathogenesis in proliferative vitreoretinopathy (PVR). However, few medicines can prevent proliferative membranes and cell proliferation in the clinic. Nintedanib, a tyrosine kinase inhibitor, has been shown to prevent fibrosis and be anti-inflammatory in multiple organ fibrosis. In our study, 0.1, 1, 10 μM nintedanib was added to 20 ng/mL transforming growth factor beta 2 (TGF-β2)-induced EMT in ARPE-19 cells. Western blot and immunofluorescence assay showed that 1 μM nintedanib suppressed TGF-β2-induced E-cadherin expression decreased and Fibronectin, N-cadherin, Vimentin, and α-SMA expression increased. Quantitative real-time PCR results showed that 1 μM nintedanib decreased TGF-β2-induced increase in SNAI1, Vimentin, and Fibronectin expression and increased TGF-β2-induced decrease in E-cadherin expression. In addition, the CCK-8 assay, wound healing assay, and collagen gel contraction assay also showed that 1 μM nintedanib ameliorated TGF-β2-induced cell proliferation, migration, and contraction, respectively. These results suggested that nintedanib inhibits TGF-β2-induced EMT in ARPE-19 cells, which may be a potential pharmacological treatment for PVR.
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Affiliation(s)
- Yiwei Yin
- Department of Pharmacy, Third Xiangya Hospital, Central South University, Changsha, China; Department of Ophthalmology, Hunan Key Laboratory of Ophthalmology, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China
| | - Shikun Liu
- Department of Pharmacy, Third Xiangya Hospital, Central South University, Changsha, China
| | - Li Pu
- Department of Ophthalmology, Hunan Key Laboratory of Ophthalmology, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China
| | - Jing Luo
- Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha, China
| | - Hanhan Liu
- Department of Ophthalmology, Third Xiangya Hospital, Central South University, Changsha, China.
| | - Wenyi Wu
- Department of Ophthalmology, Hunan Key Laboratory of Ophthalmology, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China.
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19
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Hasanpour H, Kenney MC, Kuppermann BD, Esfahani MR, Kanavi MR, Singh MK, Soheilian M. Vitreal Concentrations of Vascular Endothelial Growth Factor in Patients with Rhegmatogenous Retinal Detachment. J Clin Med 2023; 12:jcm12041259. [PMID: 36835796 PMCID: PMC9961416 DOI: 10.3390/jcm12041259] [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: 12/28/2022] [Revised: 01/24/2023] [Accepted: 02/03/2023] [Indexed: 02/08/2023] Open
Abstract
The purpose of this study is to evaluate the concentration of vascular endothelial growth factor (VEGF) in the vitreous humor of patients with primary rhegmatogenous retinal detachment (RRD). This is a prospective case control study. Eighteen patients with primary RRD without proliferative vitreoretinopathy C (PVR C) were enrolled as cases, and twenty-two non-diabetic retinopathy patients who were candidates for complete pars plana vitrectomy due to Macular Hole or Epiretinal Membrane were included as the control group. Undiluted vitreal samples were collected during the initiation of Pars Plana Vitrectomy (PPV) prior to any infusion into the posterior cavity. Vitreous samples were also collected from 21 fresh cadaveric globes. The vitreous concentration of VEGF was measured by enzyme-linked immunosorbent assay (ELISA) technique and compared between these two groups. The vitreal concentration of VEGF was 0.643 ± 0.088 ng/mL in the RRD group. Measured concentrations of VEGF in controls were 0.043 ± 0.104 ng/mL, and in cadaveric eyes they were 0.033 ± 0.058 ng/mL. The mean VEGF concentration in the RRD group was statistically higher than in the control group (p < 0.0001) and cadaveric eyes (p < 0.0001). Our study shows that vitreal VEGF concentrations significantly increase in patients with RRD.
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Affiliation(s)
- Hossein Hasanpour
- Gavin Herbert Eye Institute, Department of Ophthalmology, University of California Irvine, Irvine, CA 92697, USA
- Mitochondrial Research, Gavin Herbert Eye Institute Ophthalmology, University of California Irvine, Irvine, CA 92697, USA
- Correspondence: (H.H.); (M.C.K.)
| | - Maria Cristina Kenney
- Gavin Herbert Eye Institute, Department of Ophthalmology, University of California Irvine, Irvine, CA 92697, USA
- Mitochondrial Research, Gavin Herbert Eye Institute Ophthalmology, University of California Irvine, Irvine, CA 92697, USA
- Correspondence: (H.H.); (M.C.K.)
| | - Baruch D. Kuppermann
- Gavin Herbert Eye Institute, Department of Ophthalmology, University of California Irvine, Irvine, CA 92697, USA
| | - Mohammad Riazi Esfahani
- Gavin Herbert Eye Institute, Department of Ophthalmology, University of California Irvine, Irvine, CA 92697, USA
| | - Mozhgan Rezaei Kanavi
- Ocular Tissue Engineering Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran 15167-45811, Iran
| | - Mithalesh Kumar Singh
- Gavin Herbert Eye Institute, Department of Ophthalmology, University of California Irvine, Irvine, CA 92697, USA
- Mitochondrial Research, Gavin Herbert Eye Institute Ophthalmology, University of California Irvine, Irvine, CA 92697, USA
| | - Masoud Soheilian
- Ophthalmic Research Center, Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran 15167-45811, Iran
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20
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NFκB-Mediated Expression of Phosphoinositide 3-Kinase δ Is Critical for Mesenchymal Transition in Retinal Pigment Epithelial Cells. Cells 2023; 12:cells12020207. [PMID: 36672142 PMCID: PMC9857235 DOI: 10.3390/cells12020207] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/11/2022] [Accepted: 12/12/2022] [Indexed: 01/05/2023] Open
Abstract
Epithelial mesenchymal transition (EMT) plays a vital role in a variety of human diseases including proliferative vitreoretinopathy (PVR), in which retinal pigment epithelial (RPE) cells play a key part. Transcriptomic analysis showed that the phosphoinositide 3-kinase (PI3K)/Akt signaling pathway was up-regulated in human RPE cells upon treatment with transforming growth factor (TGF)-β2, a multifunctional cytokine associated with clinical PVR. Stimulation of human RPE cells with TGF-β2 induced expression of p110δ (the catalytic subunit of PI3Kδ) and activation of NFκB/p65. CRISPR-Cas9-mediated depletion of p110δ or NFκB/p65 suppressed TGF-β2-induced fibronectin expression and activation of Akt as well as migration of these cells. Intriguingly, abrogating expression of NFκB/p65 also blocked TGF-β2-induced expression of p110δ, and luciferase reporter assay indicated that TGF-β2 induced NFκB/p65 binding to the promoter of the PIK3CD that encodes p110δ. These data reveal that NFκB/p65-mediated expression of PI3Kδ is essential in human RPE cells for TGF-β2-induced EMT, uncovering hindrance of TGF-β2-induced expression of p110δ as a novel approach to inhibit PVR.
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21
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Dong L, Han H, Huang X, Ma G, Fang D, Qi H, Han Z, Wang L, Tian J, Vanhaesebroeck B, Zhang G, Zhang S, Lei H. Idelalisib inhibits experimental proliferative vitroretinopathy. J Transl Med 2022; 102:1296-1303. [PMID: 35854067 DOI: 10.1038/s41374-022-00822-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/16/2022] [Accepted: 06/21/2022] [Indexed: 11/09/2022] Open
Abstract
Proliferative vitreoretinopathy (PVR) is a fibrotic eye disease that develops after rhegmatogenous retinal detachment surgery and open-globe traumatic injury. Idelalisib is a specific inhibitor of phosphoinositide 3-kinase (PI3K) δ. While PI3Kδ is primarily expressed in leukocytes, its expression is also considerably high in retinal pigment epithelial (RPE) cells, which play a crucial part in the PVR pathogenesis. Herein we show that GeoMx Digital Spatial Profiling uncovered strong expression of fibronectin in RPE cells within epiretinal membranes from patients with PVR, and that idelalisib (10 μM) inhibited Akt activation, fibronectin expression and collagen gel contraction induced by transforming growth factor (TGF)-β2 in human RPE cells. Furthermore, we discovered that idelalisib at a vitreal concentration of 10 μM, a non-toxic dose to the retina, prevented experimental PVR induced by intravitreally injected RPE cells in rabbits assessed by experienced ophthalmologists using an indirect ophthalmoscope plus a + 30 D fundus lens, electroretinography, optical coherence tomography and histological analysis. These data suggested idelalisib could be harnessed for preventing patients from PVR.
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Affiliation(s)
- Lijun Dong
- Shenzhen Eye Hospital, Jinan University, Shenzhen Eye Institute, Shenzhen, China
| | - Haote Han
- Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Cancer Hospital of the University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China.,Schepens Eye Research Institute of Massachusetts Eye and Ear, Boston, MA, USA.,Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Xionggao Huang
- Department of Ophthalmology, the First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Gaoen Ma
- Department of Ophthalmology, the third Hospital of Xinxiang Medical University, Xinxiang, China
| | - Dong Fang
- Shenzhen Eye Hospital, Jinan University, Shenzhen Eye Institute, Shenzhen, China
| | - Hui Qi
- Shenzhen Eye Hospital, Jinan University, Shenzhen Eye Institute, Shenzhen, China
| | - Zhuo Han
- Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Cancer Hospital of the University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Luping Wang
- Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Cancer Hospital of the University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Jingkui Tian
- Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Cancer Hospital of the University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | | | - Guoming Zhang
- Shenzhen Eye Hospital, Jinan University, Shenzhen Eye Institute, Shenzhen, China
| | - Shaochong Zhang
- Shenzhen Eye Hospital, Jinan University, Shenzhen Eye Institute, Shenzhen, China.
| | - Hetian Lei
- Shenzhen Eye Hospital, Jinan University, Shenzhen Eye Institute, Shenzhen, China.
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22
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Wang V, Heffer A, Roztocil E, Feldon SE, Libby RT, Woeller CF, Kuriyan AE. TNF-α and NF-κB signaling play a critical role in cigarette smoke-induced epithelial-mesenchymal transition of retinal pigment epithelial cells in proliferative vitreoretinopathy. PLoS One 2022; 17:e0271950. [PMID: 36048826 PMCID: PMC9436090 DOI: 10.1371/journal.pone.0271950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 07/11/2022] [Indexed: 11/18/2022] Open
Abstract
Proliferative vitreoretinopathy (PVR) is characterized by the growth and contraction of cellular membranes within the vitreous cavity and on both surfaces of the retina, resulting in recurrent retinal detachments and poor visual outcomes. Proinflammatory cytokines like tumor necrosis factor alpha (TNFα) have been associated with PVR and the epithelial-mesenchymal transition (EMT) of retinal pigment epithelial (RPE) cells. Cigarette smoke is the only known modifiable risk factor for PVR, but the mechanisms are unclear. The purpose of this study was to examine the impact of cigarette smoke on the proinflammatory TNFα/NF-κB/Snail pathway in RPE cells to better understand the mechanisms through which cigarette smoke increases the risk of PVR. Human ARPE-19 cells were exposed to cigarette smoke extract (CSE), for 4 to 24-hours and TNFα, Snail, IL-6, IL-8, and α-SMA levels were analyzed by qPCR and/or Western blot. The severity of PVR formation was assessed in a murine model of PVR after intravitreal injection of ARPE-19 cells pre-treated with CSE or not. Fundus imaging, OCT imaging, and histologic analysis 4 weeks after injection were used to examine PVR severity. ARPE-19 cells exposed to CSE expressed higher levels of TNFα, SNAIL, IL6 and IL8 mRNA as well as SNAIL, Vimentin and α-SMA protein. Inhibition of TNFα and NF-κB pathways blocked the effect of CSE. In vivo, intravitreal injection of ARPE-19 cells treated with CSE resulted in more severe PVR compared to mice injected with untreated RPE cells. These studies suggest that the TNFα pathway is involved in the mechanism whereby cigarette smoke increases PVR. Further investigation into the role of TNFα/NF-κB/Snail in driving PVR and pharmacological targeting of these pathways in disease are warranted.
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Affiliation(s)
- Victor Wang
- Flaum Eye Institute, University of Rochester Medical Center, Rochester, NY, United States of America
| | - Alison Heffer
- Flaum Eye Institute, University of Rochester Medical Center, Rochester, NY, United States of America
| | - Elisa Roztocil
- Flaum Eye Institute, University of Rochester Medical Center, Rochester, NY, United States of America
| | - Steven E. Feldon
- Flaum Eye Institute, University of Rochester Medical Center, Rochester, NY, United States of America
- Center for Visual Sciences, University of Rochester, Rochester, NY, United States of America
| | - Richard T. Libby
- Flaum Eye Institute, University of Rochester Medical Center, Rochester, NY, United States of America
| | - Collynn F. Woeller
- Flaum Eye Institute, University of Rochester Medical Center, Rochester, NY, United States of America
- Department of Environmental Medicine, School of Medicine and Dentistry, University of Rochester, Rochester, New York, United States of America
| | - Ajay E. Kuriyan
- Flaum Eye Institute, University of Rochester Medical Center, Rochester, NY, United States of America
- Center for Visual Sciences, University of Rochester, Rochester, NY, United States of America
- Retina Service/Mid Atlantic Retina, Wills Eye Hospital, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States of America
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23
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Sonmez K, Hekimsoy HK. Outcomes and predictors of vitrectomy and silicone oil tamponade in retinal detachments complicated by proliferative vitreoretinopathy. Int J Ophthalmol 2022; 15:1279-1289. [PMID: 36017034 DOI: 10.18240/ijo.2022.08.09] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 06/13/2022] [Indexed: 11/23/2022] Open
Abstract
AIM To evaluate outcomes and determine factors influencing the outcomes of vitrectomy with silicone oil (SO) endotamponade for the management of rhegmatogenous retinal detachment (RRD) complicated by advanced proliferative vitreoretinopathy (PVR). METHODS This is a retrospective, interventional case series of eyes with PVR grade C associated RRD with or without prior surgery that underwent vitreoretinal surgery and SO tamponade. Eyes with a minimum follow-up of 6mo after SO extraction were included. Eyes were classified into three PVR subgroups according to severity and extension of proliferation. The influence of several preoperative, intraoperative and postoperative factors upon the functional and anatomical outcomes was assessed using multivariate logistic regression analysis. RESULTS A hundred and one eyes of 101 patients that met the inclusion criteria were studied. Seventy-five of 101 eyes (74.3%) had successful retinal reattachment after one operation. Increased aqueous cell and flare at the first week exam had a statistically significant association with redetachment, recurrent membrane proliferation and keratopathy. Visual acuity improvement was significantly associated with faint postoperative aqueous inflammation values, primary vitrectomy and PVR outside of the posterior pole. CONCLUSION Although encouraging anatomical and functional outcomes are achieved after vitrectomy and SO tamponade in eyes with RRD complicated by PVR, an increase in aqueous flare or cells at the first week follow-up is most likely to result in postoperative late complications. Primary vitrectomy, PVR associated with minimal posterior pole extension and absent to mild postoperative aqueous inflammation are associated with improved post-operative final visual acuity.
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Affiliation(s)
- Kenan Sonmez
- University of Health Sciences, Ulucanlar Eye Education and Research Hospital, Ankara 06240, Turkey
| | - Hilal Kilinc Hekimsoy
- University of Health Sciences, Ulucanlar Eye Education and Research Hospital, Ankara 06240, Turkey
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24
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Pao SI, Lin LT, Chen YH, Chen CL, Chen JT. MicroRNA-4516 suppresses proliferative vitreoretinopathy development via negatively regulating OTX1. PLoS One 2022; 17:e0270526. [PMID: 35771766 PMCID: PMC9246108 DOI: 10.1371/journal.pone.0270526] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 06/11/2022] [Indexed: 11/18/2022] Open
Abstract
Proliferative vitreoretinopathy (PVR) progression is associated with TGF-β2-induced epithelial–mesenchymal transition (EMT) in retinal pigment epithelial (RPE) cells. In cancer cells, miR-4516 downregulates orthodenticle homeobox 1 (OTX1)-mediated cell invasion. Moreover, OTX1 is shown to be involved in invasion and EMT. The purpose of this study was to assess whether microRNA (miR-4516) suppresses EMT in RPE cells. EMT features were assessed using Western blotting, immunocytochemical staining, scratch-wound healing, modified Boyden chamber assay, and collagen gel contraction assay. For in vivo testing, a rabbit model was used, which involved induction of PVR by injection of transfected spontaneously arising RPE (ARPE) cells into the vitreous chamber. The putative target of miR-4516 was identified by luciferase reporter assay. Results showed that TGF-β2-induced transdifferentiation and migration of RPE cells was inhibited by miR-4516 delivery. Overexpression of miR-4516 led to upregulation of zonula occludens-1, downregulation of α-smooth muscle actin and vimentin, and cell contractility—all EMT features—in the TGF-β2-treated ARPE-19 cells. MiR-4516 regulated OTX1 expression negatively by binding to its 3’-UTR. TGF-β2-induced phosphorylated ERK was inhibited in miR-4516-overexpressing ARPE-19 cells. MiR-4516 suppressed experimental PVR in vitro and in vivo. In conclusion, the overexpression of miR-4516 suppresses TGF-β2-induced EMT in a PVR model, and its role in PVR depends on OTX1/ERK. Further research is needed to develop a feasible treatment method to prevent and treat PVR.
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Affiliation(s)
- Shu-I Pao
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Le-Tien Lin
- Department of Ophthalmology, Tri-Service General Hospital Songshan Branch, National Defense Medical Center, Taipei, Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Yi-Hao Chen
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Ching-Long Chen
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Jiann-Torng Chen
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
- * E-mail:
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25
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Qi H, Dong L, Fang D, Chen L, Wang Y, Fan N, Mao X, Wu W, Yan X, Zhang G, Zhang S, Lei H. A Novel Role of IL13Rα2 in the Pathogenesis of Proliferative Vitreoretinopathy. Front Med (Lausanne) 2022; 9:831436. [PMID: 35770008 PMCID: PMC9234175 DOI: 10.3389/fmed.2022.831436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 04/28/2022] [Indexed: 11/13/2022] Open
Abstract
Proliferative vitreoretinopathy (PVR), an inflammatory and fibrotic blinding disease, is still a therapeutic challenge. Retinal pigment epithelial (RPE) cells dislodged in the vitreous play a central role in the PVR pathogenesis. To identify potential novel contributors to the pathogenesis of PVR, we investigated a profile of vitreous-induced changes in ARPE-19 cells by RNA sequencing. Bioinformatics analysis of the sequencing data showed that there were 258 genes up-regulated and 835 genes down-regulated in the ARPE-19 cells treated with human vitreous. Among these genes, there were three genes related to eye disease with more than threefold changes. In particular, quantitative PCR and western blot results showed that interleukin 13 receptor (IL13R)α2 that is over-expressed in a variety of cancers was up-regulated more than three times in the vitreous-treated ARPE-19 cells. Immunofluorescence analysis indicated that interleukin-13 receptor subunit α2 (IL13Rα2) was highly expressed in ARPE-19 cells within epiretinal membranes from patients with PVR. Importantly, blocking IL13Rα2 with its neutralizing antibody significantly inhibited vitreous-induced contraction of ARPE-19 cells, suggesting a novel role of IL13Rα2 in the PVR pathogenesis. These findings will improve our understanding of the molecular mechanisms by which PVR develops and provides potential targets for PVR therapeutics.
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Affiliation(s)
- Hui Qi
- Shenzhen Eye Hospital, Shenzhen Eye Institute, Jinan University, Shenzhen, China
| | - Lijun Dong
- Shenzhen Eye Hospital, Shenzhen Eye Institute, Jinan University, Shenzhen, China
| | - Dong Fang
- Shenzhen Eye Hospital, Shenzhen Eye Institute, Jinan University, Shenzhen, China
| | - Lu Chen
- Shenzhen Eye Hospital, Shenzhen Eye Institute, Jinan University, Shenzhen, China
| | - Yun Wang
- Shenzhen Eye Hospital, Shenzhen Eye Institute, Jinan University, Shenzhen, China
| | - Ning Fan
- Shenzhen Eye Hospital, Shenzhen Eye Institute, Jinan University, Shenzhen, China
| | - Xingxing Mao
- Shenzhen Eye Hospital, Shenzhen Eye Institute, Jinan University, Shenzhen, China
| | - Wenyi Wu
- Department of Ophthalmology, Hunan Key Laboratory, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaohe Yan
- Shenzhen Eye Hospital, Shenzhen Eye Institute, Jinan University, Shenzhen, China
| | - Guoming Zhang
- Shenzhen Eye Hospital, Shenzhen Eye Institute, Jinan University, Shenzhen, China
| | - Shaochong Zhang
- Shenzhen Eye Hospital, Shenzhen Eye Institute, Jinan University, Shenzhen, China
- *Correspondence: Shaochong Zhang,
| | - Hetian Lei
- Shenzhen Eye Hospital, Shenzhen Eye Institute, Jinan University, Shenzhen, China
- Hetian Lei,
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26
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van Overdam KA, van den Bosch TPP, van Etten PG, Uppal GS, Veckeneer M, Verdijk RM. Novel insights into the pathophysiology of proliferative vitreoretinopathy: The role of vitreoschisis-induced vitreous cortex remnants. Acta Ophthalmol 2022; 100:e1749-e1759. [PMID: 35673878 DOI: 10.1111/aos.15197] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 05/22/2022] [Indexed: 12/15/2022]
Abstract
PURPOSE We previously hypothesized a causal relationship between vitreoschisis-induced vitreous cortex remnants (VCR) and the development of proliferative vitreoretinopathy (PVR). This study aims to substantiate this association through histopathological analysis of surgical specimens in support of strategies to improve therapeutic outcomes. METHODS A descriptive, prospective, non-consecutive case series. Histopathological and immunohistochemical analyses were performed on membranes removed from the peripheral retinal surface during initial vitrectomy for primary rhegmatogenous retinal detachment (RRD) (n = 11) or recurrent retinal detachment (n = 12). The clinical aspect of the membranes ranged from loose-meshed membranes visualized with triamcinolone to more fibrotic membranes stained with trypan blue. RESULTS Consistent with the clinical presentation, histopathological analysis revealed membranes with different area characteristics. Paucicellular lamellar collagen-rich areas, suggestive of VCR, appeared to transition to areas of increased cellularity and eventually more fibrotic areas of low cellularity. Five different area characteristics could be identified that seemed to correspond to five histopathological stages in PVR formation, with lamellar VCR collagen acting as an essential precondition: 1. Lamellar collagen, low cellularity (hyalocytes). 2. Lamellar collagen, increased cellularity (hyalocytes, glial cells). 3. Lamellar collagen, high cellularity (macrophages, glial cells, RPE-cells). 4. Early fibrosis, decreased cellularity (myofibroblasts). 5. Fibrosis, low cellularity (myofibroblasts). CONCLUSION These findings confirm the role of VCR in preretinal PVR formation posterior to the vitreous base. We propose that the presence of VCR over the retinal surface should be qualified as a risk factor for PVR formation. Detection and adequate removal of VCR may improve the success rate of vitreoretinal surgeries.
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Affiliation(s)
- Koen A van Overdam
- Department of Vitreoretinal Surgery, the Rotterdam Eye Hospital, Rotterdam, The Netherlands
| | - Thierry P P van den Bosch
- Department of Pathology, Section Ophthalmic Pathology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Peter G van Etten
- Department of Vitreoretinal Surgery, the Rotterdam Eye Hospital, Rotterdam, The Netherlands
| | - Gurmit S Uppal
- Department of Vitreoretinal Surgery, Moreton Eye Group, Brisbane, Queensland, Australia
| | - Marc Veckeneer
- Department of Vitreoretinal Surgery, ZNA Middelheim, Antwerp, Belgium
| | - Robert M Verdijk
- Department of Vitreoretinal Surgery, the Rotterdam Eye Hospital, Rotterdam, The Netherlands.,Department of Pathology, Section Ophthalmic Pathology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
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27
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Solinc J, Ribot J, Soubrier F, Pavoine C, Dierick F, Nadaud S. The Platelet-Derived Growth Factor Pathway in Pulmonary Arterial Hypertension: Still an Interesting Target? Life (Basel) 2022; 12:life12050658. [PMID: 35629326 PMCID: PMC9143262 DOI: 10.3390/life12050658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 04/22/2022] [Accepted: 04/25/2022] [Indexed: 12/03/2022] Open
Abstract
The lack of curative options for pulmonary arterial hypertension drives important research to understand the mechanisms underlying this devastating disease. Among the main identified pathways, the platelet-derived growth factor (PDGF) pathway was established to control vascular remodeling and anti-PDGF receptor (PDGFR) drugs were shown to reverse the disease in experimental models. Four different isoforms of PDGF are produced by various cell types in the lung. PDGFs control vascular cells migration, proliferation and survival through binding to their receptors PDGFRα and β. They elicit multiple intracellular signaling pathways which have been particularly studied in pulmonary smooth muscle cells. Activation of the PDGF pathway has been demonstrated both in patients and in pulmonary hypertension (PH) experimental models. Tyrosine kinase inhibitors (TKI) are numerous but without real specificity and Imatinib, one of the most specific, resulted in beneficial effects. However, adverse events and treatment discontinuation discouraged to pursue this therapy. Novel therapeutic strategies are currently under experimental evaluation. For TKI, they include intratracheal drug administration, low dosage or nanoparticles delivery. Specific anti-PDGF and anti-PDGFR molecules can also be designed such as new TKI, soluble receptors, aptamers or oligonucleotides.
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Affiliation(s)
- Julien Solinc
- INSERM, Institute of Cardiometabolism and Nutrition (ICAN), Sorbonne Université, UMR_S1166, F-75013 Paris, France; (J.S.); (J.R.); (F.S.); (C.P.)
| | - Jonathan Ribot
- INSERM, Institute of Cardiometabolism and Nutrition (ICAN), Sorbonne Université, UMR_S1166, F-75013 Paris, France; (J.S.); (J.R.); (F.S.); (C.P.)
| | - Florent Soubrier
- INSERM, Institute of Cardiometabolism and Nutrition (ICAN), Sorbonne Université, UMR_S1166, F-75013 Paris, France; (J.S.); (J.R.); (F.S.); (C.P.)
| | - Catherine Pavoine
- INSERM, Institute of Cardiometabolism and Nutrition (ICAN), Sorbonne Université, UMR_S1166, F-75013 Paris, France; (J.S.); (J.R.); (F.S.); (C.P.)
| | - France Dierick
- Lady Davis Institute for Medical Research, McGill University, Montreal, QC H3T 1E2, Canada;
| | - Sophie Nadaud
- INSERM, Institute of Cardiometabolism and Nutrition (ICAN), Sorbonne Université, UMR_S1166, F-75013 Paris, France; (J.S.); (J.R.); (F.S.); (C.P.)
- Correspondence: ; Tel.: +33-14077-9681
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28
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The roles of mouse double minute 2 (MDM2) oncoprotein in ocular diseases: A review. Exp Eye Res 2022; 217:108910. [PMID: 34998788 DOI: 10.1016/j.exer.2021.108910] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 12/03/2021] [Accepted: 12/21/2021] [Indexed: 12/19/2022]
Abstract
Mouse double minute 2 (MDM2), an E3 ubiquitin ligase and the primary negative regulator of the tumor suppressor p53, cooperates with its structural homolog MDM4/MDMX to control intracellular p53 level. In turn, overexpression of p53 upregulates and forms an autoregulatory feedback loop with MDM2. The MDM2-p53 axis plays a pivotal role in modulating cell cycle control and apoptosis. MDM2 itself is regulated by the PI3K-AKT and RB-E2F-ARF pathways. While amplification of the MDM2 gene or overexpression of MDM2 (due to MDM2 SNP T309G, for instance) is associated with various malignancies, numerous studies have shown that MDM2/p53 alterations may also play a part in the pathogenetic process of certain ocular disorders (Fig. 1). These include cancers (retinoblastoma, uveal melanoma), fibrocellular proliferative diseases (proliferative vitreoretinopathy, pterygium), neovascular diseases, degenerative diseases (cataract, primary open-angle glaucoma, age-related macular degeneration) and infectious/inflammatory diseases (trachoma, uveitis). In addition, MDM2 is implicated in retinogenesis and regeneration after optic nerve injury. Anti-MDM2 therapy has shown potential as a novel approach to treating these diseases. Despite major safety concerns, there are high expectations for the clinical value of reformative MDM2 inhibitors. This review summarizes important findings about the role of MDM2 in ocular pathologies and provides an overview of recent advances in treating these diseases with anti-MDM2 therapies.
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BOYCE TIMOTHYM, WHITMORE SSCOTT, VARZAVAND KATAYOUN, RUSSELL STEPHENR, SOHN ELLIOTTH, FOLK JAMESC, STONE EDWINM, HAN IANC. Long-Term Outcomes and Risk Factors for Severe Vision Loss in Autosomal Dominant Neovascular Inflammatory Vitreoretinopathy (ADNIV). Am J Ophthalmol 2022; 233:144-152. [PMID: 34302771 PMCID: PMC9177238 DOI: 10.1016/j.ajo.2021.07.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 07/13/2021] [Accepted: 07/14/2021] [Indexed: 01/03/2023]
Abstract
Autosomal dominant neovascular inflammatory vitreoretinopathy (ADNIV) is a rare disorder characterized by uveitis, retinal neovascularization, and retinal degeneration. We sought to describe the course of treated and untreated ADNIV and to identify risk factors for severe vision loss. DESIGN Observational case series. METHODS Clinical data from ADNIV patients from 4 families seen from 1967 through 2019 at a single academic, tertiary referral center were reviewed. The main outcome measures were visual acuity at baseline and follow-up, as well as risk factors for vision loss. RESULTS A total of 130 eyes from 65 ADNIV patients (45 female, 20 male; mean age 40.8 years, range 6-77 years) were included. Mean best corrected visual acuity (BCVA) at presentation was LogMAR 0.59 (about Snellen 20/80). Longitudinal analysis included 84 eyes from 42 patients (31 female, 11 male), with mean follow-up of 17.3 years (range 2-43.6 years). Mean BCVA at last follow-up was LogMAR 1.48 (about Snellen 20/600). The disease accelerated in the fifth decade of life, during which the majority of eyes went from normal vision or mild vision loss to at least moderate vision loss (20/70 Snellen equivalent); 25 eyes from 16 patients (29.8%;) showed a steep trajectory of vision loss to no light perception. Tractional retinal detachment was the greatest risk factor for severe vision loss (BCVA <20/200) on multivariable analysis (P < .05). CONCLUSIONS Patients with ADNIV have a high lifetime risk of severe vision loss. Tractional retinal detachment is an important risk factor for poor vision.
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Rickmann A, Schulz A, Bohrer B, Waizel M, Bisorca-Gassendorf L, Al-Nawaiseh S, Wakili P, Januschowski K. Systemic Curcumin-Human Serum Albumin in Proliferative Vitreoretinal Retinopathy: A Pilot Study. Cureus 2021; 13:e18645. [PMID: 34786240 PMCID: PMC8577792 DOI: 10.7759/cureus.18645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2021] [Indexed: 11/05/2022] Open
Abstract
Objectives The purpose of this study is to compare the risks of novel postoperative curcumin infusion in patients with increased proliferative vitreoretinal retinopathy (PVR) after retinal detachment with steroid infusion or no treatment. Methods This was a prospective, non-randomized pilot study of 15 eyes of 15 patients (mean age 68 ± 7 years) with retinal detachment, macula off, and flare >15 pc/ms. Postoperatively, the patients received either curcumin-HSA (human serum albumin) infusion (C, n=5), prednisolone infusion (P, n=5), or no therapy (N, n=5) for three days. The outcome measures included postoperative PVR rate, the number of vitreoretinal surgeries (VRS) required, epiretinal membrane development, and visual acuity (VA). Results All patients had a preoperative VA of hand movements, macula-off detachment situation, and two quadrants rhegmatogenous retinal detachment. Patients underwent VRS at a mean time of 5.6 ± 1.5 (C), 4.9 ± 2.0 (P), 4.7 ± 1.2 (N) days after first recognized symptoms. Postoperative PVR developed just in one eye (P) after 16 days and required VRS due to PVR retinal detachment. The remaining 14 patients of group C and N did not develop PVR. BCVA improved six months post surgery to 0.56 ± 0.31 (P), 0.53 ± 0.19 (D), 0.53 ± 0.17 (N) logMAR. There were no side effects nor complications related to the postoperative infusions. Conclusions In this pilot study, we demonstrated that a postoperative application of curcumin infusion is a safe option in patients with an increased risk of PVR. Whether or not PVR can be reduced by curcumin infusion would require to be investigated in larger, randomized clinical trials.
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Affiliation(s)
| | - Andre Schulz
- Ophthalmology, Eye Clinic, Knappschaft Hospital Saar, Sulzbach, DEU
| | | | | | | | - Sami Al-Nawaiseh
- Ophthalmology, Eye Clinic, Knappschaft Hospital Saar, Sulzbach, DEU
| | - Phillip Wakili
- Ophthalmology, Eye Clinic, Knappschaft Hospital Saar, Sulzbach, DEU
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Igarashi K, Sugimoto K, Hirano E. Placental extract suppresses the formation of fibrotic deposits by tumor necrosis factor alpha and transforming growth factor beta-induced epithelial-mesenchymal transition in ARPE-19 cells. BMC Res Notes 2021; 14:407. [PMID: 34727968 PMCID: PMC8561846 DOI: 10.1186/s13104-021-05824-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 10/26/2021] [Indexed: 11/10/2022] Open
Abstract
Objective Epithelial–mesenchymal transition (EMT) is involved in the development of proliferative vitreoretinopathy (PVR) and subsequent fibrosis. Previously, we demonstrated that placental extract ameliorates fibrosis in a mouse model of non-alcoholic steatohepatitis. In this study, we evaluated whether placental extract influences EMT and fibrosis through cytokine-induced EMT in the retinal pigment epithelial cells, in vitro. Results Placental extract did not inhibit EMT, but it suppressed excessive mesenchymal reactions and the subsequent fibrosis. These results suggest that placental extract effectively ameliorates EMT-associated fibrosis in PVR. This beneficial effect could be partially attributed to the suppression of excessive mesenchymal reactions. Supplementary Information The online version contains supplementary material available at 10.1186/s13104-021-05824-0.
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Affiliation(s)
- Kyoko Igarashi
- Research Institute, Japan Bio Products Co., Ltd., 1-1 Kurume Research Center bldg. 2F, Hyakunenkoen, Kurume, 839-0864, Japan
| | - Koji Sugimoto
- Research Institute, Japan Bio Products Co., Ltd., 1-1 Kurume Research Center bldg. 2F, Hyakunenkoen, Kurume, 839-0864, Japan
| | - Eiichi Hirano
- Research Institute, Japan Bio Products Co., Ltd., 1-1 Kurume Research Center bldg. 2F, Hyakunenkoen, Kurume, 839-0864, Japan.
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van Overdam KA, Busch EM, Verdijk RM, Pennekamp CWA. The role of vitreous cortex remnants in proliferative vitreoretinopathy formation demonstrated by histopathology: A case report. Am J Ophthalmol Case Rep 2021; 24:101219. [PMID: 34646961 PMCID: PMC8501493 DOI: 10.1016/j.ajoc.2021.101219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 06/30/2021] [Accepted: 10/04/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose The pathogenesis of proliferative vitreoretinopathy (PVR), the most important cause of retinal detachment surgery failure, is still not fully understood. We previously hypothesized a causal link between vitreoschisis-induced vitreous cortex remnants (VCR) and PVR formation. The purpose of this case report is to demonstrate this association by showing the clinical occurrence of PVR in the presence of VCR across the retinal surface, illustrated by histopathological analysis. Observations A 69-year-old male was referred because of widespread epiretinal membrane formation after treatment of recurrent retinal detachments. During surgery with extensive membrane peeling, a large continuous membrane was peeled from the superior arcade towards the inferior temporal mid-periphery. Histopathological analysis of this membrane revealed areas with different characteristics: paucicellular laminar collagen-rich areas, suggestive for VCR, areas with increased cellularity, and more fibrotic areas with low cellularity. The immunohistochemical analysis identified cell type variety in these areas: collagen-rich areas showed glial cells and hyalocytes, while in areas with high cellularity fibroblasts, macrophages and retinal pigment epithelial cells were found, which have previously been shown to play an important role in the development of PVR as they can transdifferentiate into myofibroblasts, which were seen in the more fibrotic areas. Conclusions and importance These findings support the theory that VCR have a role in PVR development, where VCR can act as a scaffold for fibrocellular proliferation. We suggest that the presence of VCR over the retinal surface should be qualified as a risk factor for PVR formation. Detection and adequate removal of VCR may improve the success rate of retinal detachment surgery.
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Affiliation(s)
- Koen A van Overdam
- Department of Vitreoretinal Surgery, The Rotterdam Eye Hospital, Rotterdam, the Netherlands
| | - Eelco M Busch
- Department of Ophthalmology, Noordwest Ziekenhuisgroep, Alkmaar, the Netherlands
| | - Robert M Verdijk
- Department of Pathology, Section Ophthalmic Pathology, Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Claire W A Pennekamp
- Department of Vitreoretinal Surgery, The Rotterdam Eye Hospital, Rotterdam, the Netherlands
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Jahangir S, Jahangir T, Ali MH, Lateef Q, Hamza U, Tayyab H. Use of Intravitreal Methotrexate Infusion in Complicated Retinal Detachment for Prevention of Proliferative Vitreoretinopathy in a Pilot Study. Cureus 2021; 13:e17439. [PMID: 34462712 PMCID: PMC8389863 DOI: 10.7759/cureus.17439] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/25/2021] [Indexed: 11/29/2022] Open
Abstract
Objective The objective of this pilot study was to evaluate the efficacy and safety of per-operative intravitreal methotrexate (MTX) infusion during vitrectomy in patients of retinal detachment (RD) with advanced grade proliferative vitreoretinopathy (PVR). Methods In this prospective interventional case series, we included patients with Grade C PVR, recurrent RD, and open globe trauma. All patients underwent standard single surgeon operated 23-gauge pars plana vitrectomy (PPV) with 80mg of MTX in 1000mL of irrigation fluid. All patients were followed up after four months to assess the final status of retinal attachment and visual acuity. Ethical review board permission was sought for this off-label use of MTX and all patients signed an informed consent form before this intervention. Results Thirty eyes of 30 patients with recurrent retinal detachment, open globe trauma, or grade C PVR at initial presentation were included in this study. After PPV, these patients were followed up after four months. A total of 24 (80%) patients maintained retinal attachment at four months. Mean preoperative best-corrected visual acuity (BCVA) was 1.35 logarithm of the minimum angle of resolution (logMAR) (range 0.5-3) and mean four months postoperative BCVA was 1.01 logMAR (range 0.3-3) (Student’s t-test; P-value <0.05). Seventeen (56.6%) eyes had pre-operative BCVA of 1.0 whereas 25 (83.3%) had BCVA of 1.0 at the end of the follow-up period. Six (20%) patients had preoperative BCVA of 0.7 whereas 12 (40%) patients had BCVA of 0.7 at four months postoperatively. Out of six (20%) eyes developing RD after this intervention, four eyes achieved retinal reattachment after a second surgery. We did not observe any MTX-related complications during the follow-up period of this study. Conclusion Intravitreal MTX infusion during PPV for complicated RD as an adjunctive therapy showed encouraging results and was found to be safe in its use. We need more rigorous and controlled studies to confirm the possible advantages of MTX and its role in the prevention of PVR.
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Affiliation(s)
- Sana Jahangir
- Ophthalmology, Vitreoretinal Surgery, Allama Iqbal Medical College/Jinnah Hospital, Lahore, PAK
| | - Tehmina Jahangir
- Ophthalmology, Vitreoretinal Surgery, Lahore General Hospital, Lahore, PAK
| | - Muhammad H Ali
- Ophthalmology, Vitreoretinal Surgery, Allama Iqbal Medical College/Jinnah Hospital, Lahore, PAK
| | - Qasim Lateef
- Ophthalmology, Vitreoretinal Surgery, Allama Iqbal Medical College/Jinnah Hospital, Lahore, PAK
| | - Uzma Hamza
- Ophthalmology, Vitreoretinal Surgery, Allama Iqbal Medical College/Jinnah Hospital, Lahore, PAK
| | - Haroon Tayyab
- Surgery, Ophthalmology, The Aga Khan University Hospital, Karachi, PAK
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Han H, Yang Y, Liu B, Tian J, Dong L, Qi H, Zhu W, Wang J, Lei H. Chalcomoracin prevents vitreous-induced activation of AKT and migration of retinal pigment epithelial cells. J Cell Mol Med 2021; 25:9102-9111. [PMID: 34432370 PMCID: PMC8500972 DOI: 10.1111/jcmm.16590] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 02/19/2021] [Accepted: 04/15/2021] [Indexed: 01/17/2023] Open
Abstract
Retinal pigment epithelial (RPE) cells are the major cell type in the epi‐ or sub‐retinal membranes in the pathogenesis of proliferative vitreoretinopathy (PVR), which is a blinding fibrotic eye disease and still short of effective medicine. The purpose of this study is to demonstrate whether Chalocomoracin (CMR), a novel purified compound from fungus‐infected mulberry leaves, is able to inhibit vitreous‐induced signalling events and cellular responses intrinsic to PVR. Our studies have revealed that the CMR IC50 for ARPE‐19 cells is 35.5 μmol/L at 72 hours, and that 5 μmol/L CMR inhibits vitreous‐induced Akt activation and p53 suppression; in addition, we have discovered that this chemical effectively blocks vitreous‐stimulated proliferation, migration and contraction of ARPE‐19 cells, suggesting that CMR is a promising PVR prophylactic.
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Affiliation(s)
- Haote Han
- Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, China.,College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, China.,Schepens Eye Research Institute of Massachusetts Eye and Ear, Boston, MA, USA.,Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Yanhui Yang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Bing Liu
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jingkui Tian
- Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, China.,College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, China
| | - Lijun Dong
- Shenzhen Eye Hospital, Shenzhen Eye Institute, Jinan University, Shenzhen, China
| | - Hui Qi
- Shenzhen Eye Hospital, Shenzhen Eye Institute, Jinan University, Shenzhen, China
| | - Wei Zhu
- Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, China.,College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, China
| | - Jiantao Wang
- Shenzhen Eye Hospital, Shenzhen Eye Institute, Jinan University, Shenzhen, China
| | - Hetian Lei
- Shenzhen Eye Hospital, Shenzhen Eye Institute, Jinan University, Shenzhen, China
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Xiao Y, Choi KS, Warther D, Huffman K, Landeros S, Freeman WR, Sailor MJ, Cheng L. A sustained dual drug delivery system for proliferative vitreoretinopathy. Drug Deliv 2021; 27:1461-1473. [PMID: 33100053 PMCID: PMC7594716 DOI: 10.1080/10717544.2020.1833382] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Proliferative vitreoretinopathy (PVR) is a significant threat for vision recovery from retinal detachment or ocular trauma. Currently, no approved pharmacological intervention to prevent PVR. Daunorubicin (DNR) and dexamethasone (DEX) were sequentially loaded into oxidized porous silicon (pSiO2) particles by covalent conjugation. The DNR + DEX-loaded particles, and control particles loaded with DNR only and DEX only were incubated with RPE-populated collagen for daily gel surface quantitation. Toxicity was monitored by ophthalmic examinations and histological evaluation 21 days after injection. At 3rd week following intravitreal injection, a localized retinal detachment (RD) was created by subretinal injection of Healon in all pretreated eyes in addition to 3 non-interventional control eyes. 10 µg of bromodeoxyuridine (BrdU) was injected into the vitreous 4 h before sacrifice on day 3 after RD induction. Retinal sections were stained for glial fibrillary green protein (GFAP) and BrdU to identify activated glial cells and retinal cell proliferation. The studies demonstrated that all three pSiO2 particle types were well tolerated in vivo. DNR alone and DNR + DEX combination formulations demonstrated equally strong suppression on gel contraction (least square mean area of the gel: control = 1.71 vs. 30DNR = 1.85 or 30/40Dual = 1.83, p < .05). Eyes pretreated with pSiO2−DNR + DEX exhibited the least GFAP activation (least square mean intensity mm−2: Dual = 4.03, DNR = 7.76, Dex = 16.23, control = 29.11, p < .05) and BrdU expression (Mean number of BrdU positive cells per mm of retina: Dual = 2.77, DNR = 4.58, Dex = 4.01, control = 6.16, p < .05). The synergistic effect of a sustained release pSiO2−DNR/DEX showed promise for the prevention of PVR development while reducing the necessary therapeutic concentration of each drug.
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Affiliation(s)
- Ying Xiao
- Department of Ophthalmology, Jacobs Retina Center at Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA
| | - Kyung Seek Choi
- Department of Ophthalmology, Jacobs Retina Center at Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA
| | - David Warther
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA
| | - Kristyn Huffman
- Department of Ophthalmology, Jacobs Retina Center at Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA
| | - Stephanie Landeros
- Department of Ophthalmology, Jacobs Retina Center at Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA
| | - William R Freeman
- Department of Ophthalmology, Jacobs Retina Center at Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA
| | - Michael J Sailor
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA
| | - Lingyun Cheng
- Department of Ophthalmology, Jacobs Retina Center at Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA
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Anatomical and Functional Outcomes of Vitrectomy with/without Intravitreal Methotrexate Infusion for Management of Proliferative Vitreoretinopathy Secondary to Rhegmatogenous Retinal Detachment. J Ophthalmol 2021; 2021:3648134. [PMID: 34336257 PMCID: PMC8315874 DOI: 10.1155/2021/3648134] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 06/03/2021] [Accepted: 06/29/2021] [Indexed: 11/18/2022] Open
Abstract
Purpose To assess the anatomical and functional outcomes of intravitreal infusion of methotrexate (MTX) during pars plana vitrectomy (PPV) for proliferative vitreoretinopathy (PVR) associated with rhegmatogenous retinal detachment (RRD). Methods Comparative interventional nonrandomized study including consecutive patients who had vitrectomy for RRD. The study included six groups. Groups I (established PVR), II (high risk of PVR), and III (no risk of PVR) comprised prospectively recruited study eyes, which received PPV and adjuvant intravitreal MTX infusion equivalent to 400 μg/0.1 mL. Groups IA, IIA, and IIIA comprised retrospectively recruited control groups. Main outcome measures were retinal reattachment at the end of 6 months, visual outcome, and complications. Chi-square test or Fisher's exact test analyzed categorical variables. ANOVA test and Kruskal-Wallis test analyzed quantitative variables. Mann-Whitney U-test and independent t-test evaluated the difference between each group and its control. Comparison between two paired groups was done by Wilcoxon Rank test. The Kaplan-Meier method was used for survival analysis and the log-rank test estimated differences in event-free survival across the groups. P was significant at <0.05. Results The study included 190 eyes of 188 patients. Study Groups I, II, and III included 42, 35, and 24 eyes, respectively. Mean age was 45 years. Male gender constituted 70% of patients. Mean follow-up period was 6 months. Control Groups IA, IIA, and IIIA included 30, 30, and 29 eyes, respectively. Mean age was 50 years. Male gender constituted 50%. Mean follow-up period was 7 months. Median rate of retinal reattachment was 82% in the study eyes versus 86% in the control eyes. The difference in the retinal reattachment rates between each study group and its respective control was not statistically significant, Group I-IA (p= 0.2), Group II-IIA (p=0.07), and Group III-IIIA (p=0.07). BCVA improved by a mean of 4 lines in the study eyes versus 3 lines in the control eyes. The difference in visual outcome between each study group and its respective control was statistically significant between Groups II-IIA and III-IIIA, p=0.03, but not between Groups I-IA, p=0.07. We did not detect complications attributed to MTX use in the study eyes. Conclusion Intravitreal infusion of MTX during PPV is a safe adjuvant therapy in RRD patients with and without PVR. MTX yields superior functional outcomes in patients at high risk of PVR and in patients with no risk of PVR compared to PPV without MTX, but not in cases with established PVR. MTX did not confer an additional advantage in terms of retinal reattachment rate. Summary. Proliferative vitreoretinopathy is a major cause of failure in surgery for rhegmatogenous retinal detachment. Methotrexate as an adjuvant therapy blocks essential drivers in the pathogenetic cascade leading to PVR. Intravitreal infusion has the advantage of blocking the pathology in its nascence and obviates the need for repeated intravitreal injections of the drug.
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Daftarian N, Baigy O, Suri F, Kanavi MR, Balagholi S, Afsar Aski S, Moghaddasi A, Nourinia R, Abtahi SH, Ahmadieh H. Intravitreal connective tissue growth factor neutralizing antibody or bevacizumab alone or in combination for prevention of proliferative vitreoretinopathy in an experimental model. Exp Eye Res 2021; 208:108622. [PMID: 34022176 DOI: 10.1016/j.exer.2021.108622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 04/07/2021] [Accepted: 05/11/2021] [Indexed: 10/21/2022]
Abstract
Connective tissue growth factor (CTGF) is released by retinal pigment epithelial (RPE) cells and detectable in proliferative membranes (PrMs). This experimental study was performed to investigate the mRNA and protein levels of both CTGF and vascular endothelial growth factor A (VEGF-A) in a rabbit model of proliferative vitreoretinopathy (PVR). In addition, the effects of a single intravitreal injection of the safe dose of anti-CTGF or bevacizumab as monotherapy and in combination were evaluated. PVR was induced in the right eye of albino rabbits by intravitreal injection of cultured adult human RPE cells. Quantitative real-time reverse transcription PCR (qRT-PCR) and Western blot analysis of CTGF and VEGF-A were performed on whole eye tissue in the PVR model versus controls at different time points. In the next step, the PVR models were assigned to five groups. The monotherapy groups received a single intravitreal injection of 0.1 ml of anti-CTGF 100 μg/ml (final concentration of 6.6 μg/ml in the vitreous) or 0.03 ml of 25 mg/ml bevacizumab. In the combined group, the abovementioned amounts of anti-CTGF and bevacizumab were injected intravitreally from separate sites in one session. No antibody injection was performed in the control group. Intravitreal injection of 0.1 ml of control IgG (1 mg/ml of isotype matched) antibody was performed in the placebo group. After 2 weeks, histologic evaluation including, trichrome staining for collagen, immunostaining by anti-alpha-smooth muscle actin for myofibroblasts, and anti-collagen type-1 antibody on paraffin embedded anterior-posterior sections was done. In addition, fundus photography was performed for clinically equivalent PVR staging. Twenty-four hours following PVR induction, CTGF mRNA and protein levels increased five- and- three-fold compared to controls, respectively (P < 0.001). VEGF-A mRNA and protein levels decreased significantly after 72 h of PVR induction compared to controls (P < 0.05). Means of PrM thickness and myofibroblast cell counts significantly decreased in the anti-CTGF group (P < 0.001 and P < 0.05, respectively). The mean area of collagen type-1 fibers of PrM in the mono- and combination therapy groups that received intravitreal anti-CTGF was significantly reduced (P < 0.001); in addition, mild PVR (stage-1 and 2) formation occurred in comparison with moderate to severe PVR (stage-4 and higher) in other groups. In conclusion, we found that intravitreal injection of CTGF neutralizing antibody resulted in a reduction in PrM thickness, collagen fibers and myofibroblast density in the PVR model. CTGF inhibition may represent a potential therapeutic target for PVR.
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Affiliation(s)
- Narsis Daftarian
- Ocular Tissue Engineering Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Omolbanin Baigy
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Suri
- Ocular Tissue Engineering Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mozhgan Rezaei Kanavi
- Ocular Tissue Engineering Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sahar Balagholi
- Ocular Tissue Engineering Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sasha Afsar Aski
- Ocular Tissue Engineering Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Afrooz Moghaddasi
- Ocular Tissue Engineering Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ramin Nourinia
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed-Hossein Abtahi
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Ahmadieh
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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SINGLE NUCLEOTIDE POLYMORPHISMS IN RETINAL DETACHMENT PATIENTS WITH AND WITHOUT PROLIFERATIVE VITREORETINOPATHY. Retina 2021; 40:811-818. [PMID: 30807515 DOI: 10.1097/iae.0000000000002477] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE To investigate differences in genotype distributions of single nucleotide polymorphisms within genes, encoding inflammatory mediators, among patients with rhegmatogenous retinal detachment (RRD) and patients with proliferative vitreoretinopathy (PVR). METHODS A genetic association study was performed on 191 Slovenian patients, divided into 2 groups: 113 RRD patients with PVR and 78 RRD patients without PVR. Genotype distributions were investigated within the following 13 single nucleotide polymorphisms: rs3760396 (CCL2), rs9990554 (FGF2), rs17561 (IL1A), rs2069763 (IL2), rs1800795 (IL6), rs1800871 (IL10), rs3008 (JAK3), rs2229094 (LTA), rs1042522 (TP53), rs7656613 (PDGFRA), rs7226855 (SMAD7), rs1800471 (TGFB1), and rs1800629 (TNF). RESULTS Differences in genotype distributions between patients with RRD with or without PVR were detected in rs1800795 (IL6) (P = 0.04), rs1800871 (in the vicinity of the IL10) (P = 0.034), and rs1800471 (TGFB1) (P = 0.032). After adjustment none of the 13 analyzed single nucleotide polymorphisms showed statistically significant associations in single nucleotide polymorphism genotype distributions between patients with RRD with and without PVR. CONCLUSION Further research is needed, particularly expanded multicentric population-based studies, to clarify the issue of genetic contribution to PVR from different genetic, clinical, and population-based aspects.
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Plumbagin Inhibits Proliferation, Migration, and Invasion of Retinal Pigment Epithelial Cells Induced by FGF-2. Tissue Cell 2021; 72:101547. [PMID: 33964605 DOI: 10.1016/j.tice.2021.101547] [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: 11/04/2020] [Revised: 04/07/2021] [Accepted: 04/17/2021] [Indexed: 11/22/2022]
Abstract
Proliferative vitreoretinopathy (PVR) is a serious ophthalmic disease and characterized by the formation of proliferative membranes by retinal pigment epithelial (RPE) cells. In PVR, the contraction and traction of the fibrocellular membranes cause retinal detachment, which can cause reduction surgery for retinal detachment to fail. Fibroblast growth factor-2 (FGF-2) causes RPE cells to form extracellular matrix (ECM), promotes chemotaxis, mitosis, and positively promotes the disease process of PVR. Plumbagin (PLB) is a plant small molecule naphthoquinone compound. It has the functions in anti-tumor, anti-inflammatory, inhibit proliferation. We tried to investigate the possible effects of PLB on the biological behavior of ARPE-19 cells induced by FGF-2 and its underlying mechanisms. Our study confirmed that proliferation, migration, and invasion of ARPE-19 cells induced by FGF-2 (10 ng/ml) were significantly inhibited by PLB. PLB also significantly inhibits the expression of MMP-2/-9, collagen I Alpha 1 (Col1A1), collagen IV Alpha 1 (Col4A1), collagen VI Alpha 1 (Col6A1), and the phosphorylation of FGF receptor (FGFR)-1, FGFR-2, ERK, p38, JNK of FGF-2-induced ARPE-19 cells. In summary, PLB inhibits FGF-2-stimulated proliferation, migration, and invasion of ARPE-19 cells, which may take place through inhibiting the expression of MMP-2/-9, Col1A1, Col4A1, Col6A1, and the mitogen-activated protein kinase (MAPK) pathway. PLB may have a preventive effect on proliferation, migration, and invasion of FGF-2-induced ARPE-19 cells.
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Ni Y, Liu F, Hu X, Qin Y, Zhang Z. Coding and non-coding RNA interactions reveal immune-related pathways in peripheral blood mononuclear cells derived from patients with proliferative vitreoretinopathy. BMC Med Genomics 2021; 14:30. [PMID: 33509158 PMCID: PMC7842006 DOI: 10.1186/s12920-021-00875-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 01/13/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Peripheral immune response has been revealed to play a critical role in proliferative vitreoretinopathy (PVR). However, the reliable immune-related factors that are acting as prognostic indicators or therapeutic targets for PVR remain to explore further. METHODS In the current study, we applied whole-transcriptome sequencing to profile peripheral blood mononuclear cells from PVR patients and also analyzed lncRNA-mRNA interactions in peripheral immune cells to explore the pathways that might mediate immunopathology and resultant retinal damage in PVR. Gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses and Ingenuity Pathway Analysis (IPA) were employed to classify the function of these differentially expressed genes. RESULTS Compared to the controls, there were 319 genes upregulated, and 191 genes downregulated in PVR patients. GO, and KEGG enrichment analyses as well as IPA showed that these upregulated genes were significantly enriched in immune-related and infection-relate terms. Immune-related gene NFKBIA, CXCL2, and CXCL8 were detected as hub-genes in the co-expression network, while lncRNAs such as AC007032.1, AC037198.2, AL929472.2, and SLED1 were highly co-expressed with them. lncRNA-mRNA interactions analysis also showed that putative targeted genes of these differentially expressed lncRNAs were also significantly enriched in immune-related or infection-relate pathways. CONCLUSION Our study highlights the transformation of immune-related genes/pathways in PVR by comparing controls, and validates several critical genes and lncRNAs, which are serving as potential diagnostic markers for PVR patients.
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Affiliation(s)
- Yao Ni
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, 54S Xianlie Road, Guangzhou, 510060, China
| | - Fangyuan Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, 54S Xianlie Road, Guangzhou, 510060, China
| | - Xiao Hu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, 54S Xianlie Road, Guangzhou, 510060, China
| | - Yingyan Qin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, 54S Xianlie Road, Guangzhou, 510060, China
| | - Zhaotian Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, 54S Xianlie Road, Guangzhou, 510060, China.
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Vilela CAP, Messias A, Calado RT, Siqueira RC, Silva MJL, Covas DT, Paula JS. Retinal function after intravitreal injection of autologous bone marrow-derived mesenchymal stromal cells in advanced glaucoma. Doc Ophthalmol 2021; 143:33-38. [PMID: 33469852 DOI: 10.1007/s10633-021-09817-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 01/05/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE To report electroretinographic (ERG) findings in advanced glaucoma treated with a single intravitreal injection of bone marrow-derived mesenchymal stem cells (MSCs). METHODS Intravitreal injection of autologous MSCs (1 × 106 cells) was performed in 2 eyes from 2 patients with open-angle glaucoma in advanced stage of optic neuropathy (ClinicalTrials.gov, NCT02330978, 01.05.2015): cup/disk ratio worse than 0.9, visual field mean deviation index lower than - 15 dB, visual acuity of light perception, but controlled intraocular pressure. ERG tests were recorded at baseline and week 1, 4 and 48 after injection, using DTL electrodes following the ISCEV standard: After dark adaptation, ERG was elicited using white flashes of 0.01 cd.s/m2 and 3.0 cd.s/m2, followed by 10-min light adaptation (30 cd/m2) and stimuli of 3.0 cd.s/m2 and 30 Hz flicker. RESULTS Patients did not show improvement on visual acuity or visual field after treatment. At baseline, ERG responses showed typical findings for advanced glaucoma, with a- and b-wave amplitude and latency within normative range, but reduced photopic negative responses. No noteworthy changes were observed on ERG responses for both cases up to 1 week after treatment, but at day 15, one patient showed retinal detachment with proliferative vitreoretinopathy and was removed from the trial. The other patient kept ERG responses stable throughout study period. CONCLUSION Although no ERG response changes were observed after MSCs injection in one case, the complication observed on the second one, along with the lack of visual function improvement, warrants further studies involving modified MSCs to treat ocular disorders, including glaucoma. TRIAL REGISTRATION ClinicalTrials.gov, NCT02330978- missed in pdf.
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Affiliation(s)
- Carolina Assis P Vilela
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900 - 12º. Andar, Ribeirão Preto, São Paulo, 14049 - 900, Brazil
| | - Andre Messias
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900 - 12º. Andar, Ribeirão Preto, São Paulo, 14049 - 900, Brazil.
| | - Rodrigo T Calado
- Department of Medical Images, Hematology and Clinical Oncology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Rubens C Siqueira
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900 - 12º. Andar, Ribeirão Preto, São Paulo, 14049 - 900, Brazil
| | - Marcelo Jordão L Silva
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900 - 12º. Andar, Ribeirão Preto, São Paulo, 14049 - 900, Brazil
| | - Dimas T Covas
- Department of Medical Images, Hematology and Clinical Oncology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Jayter S Paula
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900 - 12º. Andar, Ribeirão Preto, São Paulo, 14049 - 900, Brazil
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Mysore Y, Del Amo EM, Loukovaara S, Hagström M, Urtti A, Kauppinen A. Statins for the prevention of proliferative vitreoretinopathy: cellular responses in cultured cells and clinical statin concentrations in the vitreous. Sci Rep 2021; 11:980. [PMID: 33441813 PMCID: PMC7806714 DOI: 10.1038/s41598-020-80127-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 12/15/2020] [Indexed: 02/06/2023] Open
Abstract
Proliferative vitreoretinopathy (PVR) with rhegmatogenous retinal detachment (RRD) is a complex inflammatory ocular disease. Statins are widely used cholesterol-lowering drugs with putative anti-inflammatory properties. In this study, we have explored their efficacy in controlling post-surgical PVR formation. Simvastatin (SIM), atorvastatin (ATV), or rosuvastatin (RSV) were added to cultures of human retinal pigment epithelial cells (ARPE-19) prior to exposure with the bacterial lipopolysaccharide (LPS), and the production of pro-inflammatory cytokines (IL-6, IL-8, MCP-1) was examined using an enzyme-linked immunosorbent assay. In addition, the concentrations of simvastatin, atorvastatin, rosuvastatin, and their metabolites were measured from the vitreal samples of 20 patients undergoing vitrectomy (16 of them receiving oral statin therapy) using an ultra-performance liquid chromatography-tandem mass spectrometer technique. All statins alleviated LPS-induced inflammation at 5 µM concentration in the ARPE-19 cell cultures. Statin levels in the vitreous samples ranged from 6 to 316 pg/mL (ca. 0.1-7 M-10). Vitreal statin concentrations were similar to the typical steady-state unbound statin concentrations in plasma, indicating that only the unbound drug distributes from the blood circulation into the vitreous. Pharmacokinetic simulations of the intravitreal delivery of statins indicate that the measured clinical statin concentrations could be maintained with existing drug delivery technologies for months. Our results suggest that intravitreal statin therapy may have the potential in alleviating the risk of post-surgical PVR.
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Affiliation(s)
- Yashavanthi Mysore
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1C, P.O.B. 1627, 70211, Kuopio, Finland.
| | - Eva M Del Amo
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1C, P.O.B. 1627, 70211, Kuopio, Finland
| | - Sirpa Loukovaara
- Department of Ophthalmology, Unit of Vitreoretinal Surgery, Helsinki University Central Hospital, and Individualized Drug Therapy Research Program, University of Helsinki, Helsinki, Finland
| | - Marja Hagström
- School of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Arto Urtti
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1C, P.O.B. 1627, 70211, Kuopio, Finland.,School of Pharmacy, University of Helsinki, Helsinki, Finland.,Institute of Chemistry, St. Petersburg State University, Petergof, Russian Federation
| | - Anu Kauppinen
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1C, P.O.B. 1627, 70211, Kuopio, Finland
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Öhman T, Gawriyski L, Miettinen S, Varjosalo M, Loukovaara S. Molecular pathogenesis of rhegmatogenous retinal detachment. Sci Rep 2021; 11:966. [PMID: 33441730 PMCID: PMC7806834 DOI: 10.1038/s41598-020-80005-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 12/16/2020] [Indexed: 02/08/2023] Open
Abstract
Rhegmatogenous retinal detachment (RRD) is an ophthalmic emergency, which usually requires prompt surgery to prevent further detachment and restore sensory function. Although several individual factors have been suggested, a systems level understanding of molecular pathomechanisms underlying this severe eye disorder is lacking. To address this gap in knowledge we performed the molecular level systems pathology analysis of the vitreous from 127 patients with RRD using state-of-the art quantitative mass spectrometry to identify the individual key proteins, as well as the biochemical pathways contributing to the development of the disease. RRD patients have specific vitreous proteome profiles compared to other diseases such as macular hole, pucker, or proliferative diabetic retinopathy eyes. Our data indicate that various mechanisms, including glycolysis, photoreceptor death, and Wnt and MAPK signaling, are activated during or after the RRD to promote retinal cell survival. In addition, platelet-mediated wound healing processes, cell adhesion molecules reorganization and apoptotic processes were detected during RRD progression or proliferative vitreoretinopathy formation. These findings improve the understanding of RRD pathogenesis, identify novel targets for treatment of this ophthalmic disease, and possibly affect the prognosis of eyes treated or operated upon due to RRD.
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Affiliation(s)
- Tiina Öhman
- Institute of Biotechnology and Helsinki Institute of Life Science, University of Helsinki, Viikinkaari 1, P.O. Box 65, 00014, Helsinki, Finland
| | - Lisa Gawriyski
- Institute of Biotechnology and Helsinki Institute of Life Science, University of Helsinki, Viikinkaari 1, P.O. Box 65, 00014, Helsinki, Finland
| | - Sini Miettinen
- Institute of Biotechnology and Helsinki Institute of Life Science, University of Helsinki, Viikinkaari 1, P.O. Box 65, 00014, Helsinki, Finland
| | - Markku Varjosalo
- Institute of Biotechnology and Helsinki Institute of Life Science, University of Helsinki, Viikinkaari 1, P.O. Box 65, 00014, Helsinki, Finland.
| | - Sirpa Loukovaara
- Department of Ophthalmology, Unit of Vitreoretinal Surgery, Helsinki University Hospital, Haartmaninkatu 4 C, 00290, Helsinki, Finland. .,Individualized Drug Therapy Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
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Uslubas I, Kanli A, Kasap M, Akpinar G, Karabas L. Effect of aflibercept on proliferative vitreoretinopathy: Proteomic analysis in an experimental animal model. Exp Eye Res 2021; 203:108425. [PMID: 33417914 DOI: 10.1016/j.exer.2020.108425] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 12/03/2020] [Accepted: 12/21/2020] [Indexed: 11/17/2022]
Abstract
PURPOSE The aim of this study was to monitor inflammatory, proliferative and progressive effects of proliferative vitreoretinopathy (PVR) and aflibercept treatment in dispase induced PVR rat model by proteomic analysis. MATERIAL AND METHODS A total of 35 male Long Evans pigmented rats were divided into three groups, namely, PVR (dispase+saline), PVR+aflibercept (dispase+aflibercept) and control. The PVR group received 2 μl of 0.03 IU/μl dispase and 2 μl saline, the PVR+aflibercept group received 2 μl of 0.03 IU/μl and 2 μl of 40 mg/ml aflibercept at the first day of the experiment. At the end of the 6th week all retina and vitreous specimens were collected by evisceration and transferred to the proteomics laboratory for analysis. Proteomic analysis by 2D gel electrophoresis coupled with MALDI-TOF/TOF was performed. RESULTS In the PVR and PVR+aflibercept group 16 different proteins that were identified to be differentially regulated in comparison to the control group. In the PVR+aflibercept group, ENO1, ENO2, LDH-B, PEBP-1 and GS levels were higher than the PVR group. In addition, the association of proteins such as UCHL, PEBP1, PDHB and ENO1 with PVR has been demonstrated for the first time. CONCLUSION STRING analysis elucidated the functional protein-protein interaction among the differentially regulated proteins and highlighted that those proteins mainly played roles in carbon and nucleotide metabolisms. Functional analysis of the differentially regulated proteins indicated the presence of inflammation, gliosis and retinal damage in the PVR group. Aflibercept treatment had pronounced effect on prevention of inflammation and retinal damage while causing a slight increase in gliosis. However, aflibercept treatment was not effective enough to normalize the levels of differentially regulated proteins of the PVR group. Therefore, we predict that the treatment dose of aflibercept used in this study was below of its ideal concentration and should be increased in the future studies. The differential regulation of these structural proteins in this study should shed some light to the mechanism of glial wound formation in the retina and guide future treatment modalities.
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MESH Headings
- Angiogenesis Inhibitors/therapeutic use
- Animals
- Disease Models, Animal
- Electrophoresis, Gel, Two-Dimensional
- Electrophoresis, Polyacrylamide Gel
- Endopeptidases/toxicity
- Eye Proteins/metabolism
- Male
- Proteome/metabolism
- Proteomics
- Rats
- Rats, Long-Evans
- Receptors, Vascular Endothelial Growth Factor/therapeutic use
- Recombinant Fusion Proteins/therapeutic use
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
- Vascular Endothelial Growth Factor A/antagonists & inhibitors
- Vitreoretinopathy, Proliferative/chemically induced
- Vitreoretinopathy, Proliferative/drug therapy
- Vitreoretinopathy, Proliferative/metabolism
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Affiliation(s)
- Isil Uslubas
- Kocaeli University School of Medicine, Department of Ophthalmology, Turkey.
| | - Aylin Kanli
- Kocaeli University School of Medicine, Department of Medical Biology, Turkey
| | - Murat Kasap
- Kocaeli University School of Medicine, Department of Medical Biology, Turkey
| | - Gurler Akpinar
- Kocaeli University School of Medicine, Department of Medical Biology, Turkey
| | - Levent Karabas
- Kocaeli University School of Medicine, Department of Ophthalmology, Turkey
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Heffer AM, Wang V, Libby RT, Feldon SE, Woeller CF, Kuriyan AE. Salinomycin inhibits proliferative vitreoretinopathy formation in a mouse model. PLoS One 2020; 15:e0243626. [PMID: 33347461 PMCID: PMC7751870 DOI: 10.1371/journal.pone.0243626] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 11/24/2020] [Indexed: 01/22/2023] Open
Abstract
Proliferative vitreoretinopathy (PVR) is a progressive disease that develops in a subset of patients who undergo surgery for retinal detachment repair, and results in significant vision loss. PVR is characterized by the migration of retinal pigment epithelial (RPE) cells into the vitreous cavity, where they undergo epithelial-to-mesenchymal transition and form contractile membranes within the vitreous and along the retina, resulting in recurrent retinal detachments. Currently, surgical intervention is the only treatment for PVR and there are no pharmacological agents that effectively inhibit or prevent PVR formation. Here, we show that a single intravitreal injection of the polyether ionophore salinomycin (SNC) effectively inhibits the formation of PVR in a mouse model with no evidence of retinal toxicity. After 4 weeks, fundus photography and optical coherence tomography (OCT) demonstrated development of mean PVR grade of 3.5 (SD: 1.3) in mouse eyes injected with RPE cells/DMSO (vehicle), compared to mean PVR grade of 1.6 (SD: 1.3) in eyes injected with RPE cells/SNC (p = 0.001). Additionally, immunohistochemistry analysis showed RPE cells/SNC treatment reduced both fibrotic (αSMA, FN1, Vim) and inflammatory (GFAP, CD3, CD20) markers compared to control RPE cells/DMSO treatment. Finally, qPCR analysis confirmed that Tgfβ, Tnfα, Mcp1 (inflammatory/cytokine markers), and Fn1, Col1a1 and Acta2 (fibrotic markers) were significantly attenuated in the RPE cells/SNC group compared to RPE/DMSO control. These results suggest that SNC is a potential pharmacologic agent for the prevention of PVR in humans and warrants further investigation.
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Affiliation(s)
- Alison M. Heffer
- Flaum Eye Institute, University of Rochester, Rochester, NY, United States of America
| | - Victor Wang
- Flaum Eye Institute, University of Rochester, Rochester, NY, United States of America
| | - Richard T. Libby
- Flaum Eye Institute, University of Rochester, Rochester, NY, United States of America
- Center for Visual Sciences, University of Rochester, Rochester, NY, United States of America
| | - Steven E. Feldon
- Flaum Eye Institute, University of Rochester, Rochester, NY, United States of America
- Center for Visual Sciences, University of Rochester, Rochester, NY, United States of America
| | - Collynn F. Woeller
- Flaum Eye Institute, University of Rochester, Rochester, NY, United States of America
| | - Ajay E. Kuriyan
- Flaum Eye Institute, University of Rochester, Rochester, NY, United States of America
- Center for Visual Sciences, University of Rochester, Rochester, NY, United States of America
- Retina Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, PA, United States of America
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Delgado-Tirado S, Amarnani D, Zhao G, Rossin EJ, Eliott D, Miller JB, Greene WA, Ramos L, Arevalo-Alquichire S, Leyton-Cifuentes D, Gonzalez-Buendia L, Isaacs-Bernal D, Whitmore HAB, Chmielewska N, Duffy BV, Kim E, Wang HC, Ruiz-Moreno JM, Kim LA, Arboleda-Velasquez JF. Topical delivery of a small molecule RUNX1 transcription factor inhibitor for the treatment of proliferative vitreoretinopathy. Sci Rep 2020; 10:20554. [PMID: 33257736 PMCID: PMC7705016 DOI: 10.1038/s41598-020-77254-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 11/09/2020] [Indexed: 12/21/2022] Open
Abstract
Proliferative vitreoretinopathy (PVR) is the leading cause of retinal detachment surgery failure. Despite significant advances in vitreoretinal surgery, it still remains without an effective prophylactic or therapeutic medical treatment. After ocular injury or retinal detachment, misplaced retinal cells undergo epithelial to mesenchymal transition (EMT) to form contractile membranes within the eye. We identified Runt-related transcription factor 1 (RUNX1) as a gene highly expressed in surgically-removed human PVR specimens. RUNX1 upregulation was a hallmark of EMT in primary cultures derived from human PVR membranes (C-PVR). The inhibition of RUNX1 reduced proliferation of human C-PVR cells in vitro, and curbed growth of freshly isolated human PVR membranes in an explant assay. We formulated Ro5-3335, a lipophilic small molecule RUNX1 inhibitor, into a nanoemulsion that when administered topically curbed the progression of disease in a novel rabbit model of mild PVR developed using C-PVR cells. Mass spectrometry analysis detected 2.67 ng/mL of Ro5-3335 within the vitreous cavity after treatment. This work shows a critical role for RUNX1 in PVR and supports the feasibility of targeting RUNX1 within the eye for the treatment of an EMT-mediated condition using a topical ophthalmic agent.
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Affiliation(s)
- Santiago Delgado-Tirado
- Schepens Eye Research Institute of Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA
| | - Dhanesh Amarnani
- Schepens Eye Research Institute of Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA
| | - Guannan Zhao
- Schepens Eye Research Institute of Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA
| | - Elizabeth J Rossin
- Retina Service, Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA
| | - Dean Eliott
- Retina Service, Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA
| | - John B Miller
- Retina Service, Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA
| | - Whitney A Greene
- Sensory Trauma Task Area, United States Army Institute of Surgical Research, Fort Sam Houston, San Antonio, USA
| | - Leslie Ramos
- Schepens Eye Research Institute of Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA
| | - Said Arevalo-Alquichire
- Schepens Eye Research Institute of Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA
- Energy, Materials and Environment Group, Faculty of Engineering, Universidad de La Sabana, Chia, Colombia
| | - David Leyton-Cifuentes
- Schepens Eye Research Institute of Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA
- Universidad EIA, Envigado, Colombia
| | - Lucia Gonzalez-Buendia
- Schepens Eye Research Institute of Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA
| | - Daniela Isaacs-Bernal
- Schepens Eye Research Institute of Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA
- Energy, Materials and Environment Group, Faculty of Engineering, Universidad de La Sabana, Chia, Colombia
| | - Hannah A B Whitmore
- Schepens Eye Research Institute of Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA
| | - Natalia Chmielewska
- Schepens Eye Research Institute of Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA
- Boston College, Boston, USA
| | - Brandon V Duffy
- Schepens Eye Research Institute of Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA
- Harvard College, Cambridge, USA
| | - Eric Kim
- Schepens Eye Research Institute of Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA
| | - Heuy-Ching Wang
- Sensory Trauma Task Area, United States Army Institute of Surgical Research, Fort Sam Houston, San Antonio, USA
| | - Jose M Ruiz-Moreno
- Department of Ophthalmology, Castilla La Mancha University, Puerta de Hierro-Majadahonda University Hospital, Madrid, Spain
- Vissum Corporation, Alicante, Spain
| | - Leo A Kim
- Schepens Eye Research Institute of Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA.
- Retina Service, Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA.
| | - Joseph F Arboleda-Velasquez
- Schepens Eye Research Institute of Massachusetts Eye and Ear and the Department of Ophthalmology at Harvard Medical School, Boston, USA.
- Universidad EIA, Envigado, Colombia.
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Lu K, Du HT, Lian AL, Su Y, Wang F. Effect of purine-rich box1 on proliferation of fibroblasts. Int J Ophthalmol 2020; 13:1827-1832. [PMID: 33215017 DOI: 10.18240/ijo.2020.11.22] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 05/27/2020] [Indexed: 12/30/2022] Open
Abstract
Fibroblasts are pleomorphic cells that have a multi-directional effect on organ morphogenesis, tissue homeostasis, and immune response. In fibrotic diseases, fibroblasts synthesize large amounts of extracellular matrix (ECM), leading to scarring and organ failure. Purine-rich box1 (PU.1) is a specific transcription factor of hematopoietic cell and belongs to the E26 transformation specificity (ETS) family. Recently, it was found that the transcription factor PU.1 is an important regulatory factor of the profibrotic gene expression program. TGF-β had been proved to play an important role in many ocular tissue fibrosis diseases, and up-regulated the expression of PU.1 in fibroblasts producing ECM in a Smad-3 dependent manner. We explore the effect of PU.1 on fibrosis of different ocular tissues from this perspective. This article reviews the role of PU.1 and its effects on fibrosis of ocular tissue and other tissues.
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Affiliation(s)
- Ke Lu
- Department of Ophthalmology, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Hai-Tao Du
- Department of Ophthalmology, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Ai-Ling Lian
- Department of Centric Operating Room, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Ying Su
- Department of Ophthalmology, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Feng Wang
- Department of Ophthalmology, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
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Zou H, Shan C, Ma L, Liu J, Yang N, Zhao J. Polarity and epithelial-mesenchymal transition of retinal pigment epithelial cells in proliferative vitreoretinopathy. PeerJ 2020; 8:e10136. [PMID: 33150072 PMCID: PMC7583629 DOI: 10.7717/peerj.10136] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/18/2020] [Indexed: 12/11/2022] Open
Abstract
Under physiological conditions, retinal pigment epithelium (RPE) is a cellular monolayer composed of mitotically quiescent cells. Tight junctions and adherens junctions maintain the polarity of RPE cells, and are required for cellular functions. In proliferative vitreoretinopathy (PVR), upon retinal tear, RPE cells lose cell-cell contact, undergo epithelial-mesenchymal transition (EMT), and ultimately transform into myofibroblasts, leading to the formation of fibrocellular membranes on both surfaces of the detached retina and on the posterior hyaloids, which causes tractional retinal detachment. In PVR, RPE cells are crucial contributors, and multiple signaling pathways, including the SMAD-dependent pathway, Rho pathway, MAPK pathways, Jagged/Notch pathway, and the Wnt/β-catenin pathway are activated. These pathways mediate the EMT of RPE cells, which play a key role in the pathogenesis of PVR. This review summarizes the current body of knowledge on the polarized phenotype of RPE, the role of cell-cell contact, and the molecular mechanisms underlying the RPE EMT in PVR, emphasizing key insights into potential approaches to prevent PVR.
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Affiliation(s)
- Hui Zou
- Eye Center, The Second Hospital of Jilin University, Changchun, China
| | - Chenli Shan
- Eye Center, The Second Hospital of Jilin University, Changchun, China
| | - Linlin Ma
- Eye Center, The Second Hospital of Jilin University, Changchun, China
| | - Jia Liu
- Eye Center, The Second Hospital of Jilin University, Changchun, China
| | - Ning Yang
- Eye Center, The Second Hospital of Jilin University, Changchun, China
| | - Jinsong Zhao
- Eye Center, The Second Hospital of Jilin University, Changchun, China
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Qi T, Jing R, Wen C, Hu C, Wang Y, Pei C, Ma B. Interleukin-6 promotes migration and extracellular matrix synthesis in retinal pigment epithelial cells. Histochem Cell Biol 2020; 154:629-638. [PMID: 32997263 DOI: 10.1007/s00418-020-01923-4] [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] [Accepted: 09/17/2020] [Indexed: 01/05/2023]
Abstract
Proliferative vitreoretinopathy (PVR) is the most common cause of surgical failure in the rhegmatogenous retinal detachment (RD) treatment. Retinal pigment epithelial (RPE) cell proliferation, migration, and the synthesis of extracellular matrix (ECM) are intrinsic to the formation of a PVR membrane. High level of interleukin-6 (IL-6) has been found in the vitreous of PVR patients, while the role of IL-6 in RPE cells remaining further characterized. In the present study, we evaluated the potential regulatory effects of IL-6 on cell migration, ECM components, and transforming growth factor β2 (TGF-β2) expression in RPE cells. Furthermore, cell counting kit-8 (CCK‑8) assay was used to investigate cell proliferation activity. We found that IL-6 promoted fibronectin (Fn) and type I collagen (COL-1), TGF-β2 expression in RPE cells, also stimulate RPE cell migration effectively. Moreover, the induction of IL-6 activated the Janus kinase/signal transducers and activators of transcription (JAK/STAT3) and the nuclear factor kappa-B (NF-κB) signaling pathways significantly. Simultaneously, both JAK/STAT3 and NF-κB pathways inhibitors, WP1066 and BAY11-7082, alleviated IL-6-induced biological effects, respectively. However, it was noted that IL-6 had little effect on α-smooth muscle actin (α-SMA) expression. Collectively, our results reveal that IL-6 promotes RPE cell migration and ECM synthesis via activating JAK/STAT3 and NF-κB signaling pathways, which may play a crucial role in PVR formation.
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Affiliation(s)
- Tiantian Qi
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Ruihua Jing
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Chan Wen
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Conghui Hu
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Yunqing Wang
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Cheng Pei
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
| | - Bo Ma
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
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Elevated vitreous αB-crystallin in patients with rhegmatogenous retinal detachment and association with proliferative vitreoretinopathy and retinal detachment area. Int Ophthalmol 2020; 40:2461-2467. [DOI: 10.1007/s10792-020-01425-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 05/12/2020] [Indexed: 10/24/2022]
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