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Ghenciu LA, Hațegan OA, Bolintineanu SL, Dănilă AI, Faur AC, Prodan-Bărbulescu C, Stoicescu ER, Iacob R, Șișu AM. Immune-Mediated Ocular Surface Disease in Diabetes Mellitus-Clinical Perspectives and Treatment: A Narrative Review. Biomedicines 2024; 12:1303. [PMID: 38927510 DOI: 10.3390/biomedicines12061303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/06/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
Diabetes mellitus (DM) is a chronic metabolic disorder marked by hyperglycemia due to defects in insulin secretion, action, or both, with a global prevalence that has tripled in recent decades. This condition poses significant public health challenges, affecting individuals, healthcare systems, and economies worldwide. Among its numerous complications, ocular surface disease (OSD) is a significant concern, yet understanding its pathophysiology, diagnosis, and management remains challenging. This review aims to explore the epidemiology, pathophysiology, clinical manifestations, diagnostic approaches, and management strategies of diabetes-related OSD. The ocular surface, including the cornea, conjunctiva, and associated structures, is vital for maintaining eye health, with the lacrimal functional unit (LFU) playing a crucial role in tear film regulation. In DM, changes in glycosaminoglycan metabolism, collagen synthesis, oxygen consumption, and LFU dysfunction contribute to ocular complications. Persistent hyperglycemia leads to the expression of cytokines, chemokines, and cell adhesion molecules, resulting in neuropathy, tear film abnormalities, and epithelial lesions. Recent advances in molecular research and therapeutic modalities, such as gene and stem cell therapies, show promise for managing diabetic ocular complications. Future research should focus on pathogenetically oriented therapies for diabetic neuropathy and keratopathy, transitioning from animal models to clinical trials to improve patient outcomes.
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Affiliation(s)
- Laura Andreea Ghenciu
- Department of Functional Sciences, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
| | - Ovidiu Alin Hațegan
- Discipline of Anatomy and Embriology, Medicine Faculty, 'Vasile Goldis' Western University of Arad, Revolution Boulevard 94, 310025 Arad, Romania
| | - Sorin Lucian Bolintineanu
- Department of Anatomy and Embriology, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
| | - Alexandra-Ioana Dănilă
- Department of Anatomy and Embriology, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
| | - Alexandra Corina Faur
- Department of Anatomy and Embriology, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
| | - Cătălin Prodan-Bărbulescu
- Department of Anatomy and Embriology, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
- Doctoral School, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
- IInd Surgery Clinic, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
| | - Emil Robert Stoicescu
- Field of Applied Engineering Sciences, Specialization Statistical Methods and Techniques in Health and Clinical Research, Faculty of Mechanics, 'Politehnica' University Timisoara, Mihai Viteazul Boulevard No. 1, 300222 Timisoara, Romania
- Department of Radiology and Medical Imaging, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
- Research Center for Pharmaco-Toxicological Evaluations, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
| | - Roxana Iacob
- Department of Anatomy and Embriology, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
- Doctoral School, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
- Field of Applied Engineering Sciences, Specialization Statistical Methods and Techniques in Health and Clinical Research, Faculty of Mechanics, 'Politehnica' University Timisoara, Mihai Viteazul Boulevard No. 1, 300222 Timisoara, Romania
| | - Alina Maria Șișu
- Department of Anatomy and Embriology, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
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Cui Y, Wang L, Liang W, Huang L, Zhuang S, Shi H, Xu N, Hu J. Identification and Validation of the Pyroptosis-Related Hub Gene Signature and the Associated Regulation Axis in Diabetic Keratopathy. J Diabetes Res 2024; 2024:2920694. [PMID: 38529047 PMCID: PMC10963115 DOI: 10.1155/2024/2920694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/26/2024] [Accepted: 02/19/2024] [Indexed: 03/27/2024] Open
Abstract
Background Diabetic keratopathy (DK) poses a significant challenge in diabetes mellitus, yet its molecular pathways and effective treatments remain elusive. The aim of our research was to explore the pyroptosis-related genes in the corneal epithelium of the streptozocin-induced diabetic rats. Methods After sixteen weeks of streptozocin intraperitoneal injection, corneal epithelium from three diabetic rats and three normal groups underwent whole-transcriptome sequencing. An integrated bioinformatics pipeline, including differentially expressed gene (DEG) identification, enrichment analysis, protein-protein interaction (PPI) network, coexpression, drug prediction, and immune deconvolution analyses, identified hub genes and key drivers in DK pathogenesis. These hub genes were subsequently validated in vivo through RT-qPCR. Results A total of 459 DEGs were screened out from the diabetic group and nondiabetic controls. Gene Set Enrichment Analysis highlighted significant enrichment of the NOD-like receptor, Toll-like receptor, and NF-kappa B signaling pathways. Intersection of DEGs and pyroptosis-related datasets showed 33 differentially expressed pyroptosis-related genes (DEPRGs) associated with pathways such as IL-17, NOD-like receptor, TNF, and Toll-like receptor signaling. A competing endogenous RNA network comprising 16 DEPRGs, 22 lncRNAs, 13 miRNAs, and 3 circRNAs was constructed. After PPI network, five hub genes (Nfkb1, Casp8, Traf6, Ptgs2, and Il18) were identified as upregulated in the diabetic group, and their expression was validated by RT-qPCR in streptozocin-induced rats. Immune infiltration characterization showed that diabetic corneas owned a higher proportion of resting mast cells, activated NK cells, and memory-resting CD4 T cells. Finally, several small compounds including all-trans-retinoic acid, Chaihu Shugan San, dexamethasone, and resveratrol were suggested as potential therapies targeting these hub genes for DK. Conclusions The identified and validated hub genes, Nfkb1, Casp8, Traf6, Ptgs2, and Il18, may play crucial roles in DK pathogenesis and serve as therapeutic targets.
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Affiliation(s)
- Yi Cui
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Department of Biochemistry, Wake Forest University School of Medicine, Winston-Salem, North Carolina 27101, USA
| | - Li Wang
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
| | - Wentao Liang
- Department of Biochemistry, Wake Forest University School of Medicine, Winston-Salem, North Carolina 27101, USA
| | - Li Huang
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
| | - Shuting Zhuang
- College of Integrated Traditional Chinese and Western Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Hong Shi
- College of Integrated Traditional Chinese and Western Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Nuo Xu
- Department of Ophthalmology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China
| | - Jianzhang Hu
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
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Zhang X, Zhao S, Zhao X, Yang Z, Wang X. Dang-Gui-Bu-Xue decoction improves wound healing in diabetic rats by the activation of Notch signaling. Heliyon 2024; 10:e26711. [PMID: 38444491 PMCID: PMC10912225 DOI: 10.1016/j.heliyon.2024.e26711] [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: 01/13/2023] [Revised: 02/15/2024] [Accepted: 02/19/2024] [Indexed: 03/07/2024] Open
Abstract
Diabetes serves as a severe chronic disease that severely affects the normal life of human beings. Diabetes causes the complication of diabetic wound dysfunction, which is characterized by sustained inflammation, altered angiogenesis, delayed epithelialization and abnormal secretion of protease. Dang-Gui-Bu-Xue decoction (DBD) is a Chinese traditional medicine that comprises Radix Astragali and Radix Angelicae sinensis and is widely applied in treatment of multiple diseases owing to its functions against inflammation, lipid peroxidation and oxidative stress. Nevertheless, the impact of DBD on diabetic wound healing remains elusive. In this study, we aimed to explore the function of DBD in the regulation of wound healing. We observed that the gavage administration of DBD reduced the wound area, inflammatory infiltration, inflammatory factor levesl, and enhanced granulation tissue formation, wound extracellular matrix (ECM) production, and CD31 accumulation in the diabetic rat wound model, and the co-treatment of gavage administration and the external administration of gauze containing DBD further improved the wound healing effect, while the combination of Notch signaling inhibitor DAPT ((N- [N- (3, 5-difluorophenacetyl)-l-alanyl]-s-phenylglycinet-butyl ester)) could attenuate the improvement. Regarding to the mechanism, the expression levels of Notch1, Delta-like canonical Notch ligand 4 (Dll4), Jagged1, and Hairy Enhancer of Split-1 (Hes1) were increased by DBD, while the treatment of DAPT impaired the effect in the rats. Furthermore, we found that the high glucose (HG)-inhibited viability and tube formation were induced by DBD in human umbilical vein endothelial cells (HUVECs), in which DAPT could reverse this effect. Therefore, we concluded that DBD contributed to wound healing by the activation of Notch signaling. Our finding provides new insight into the potential role of DBD in promoting diabetic wound healing.
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Affiliation(s)
- Xian Zhang
- College of Traditional Chinese Veterinary Medicine of Hebei Agricultural University, 289 Lingyusi Street, Baoding City, Hebei Province, China
| | - Song Zhao
- JINYUBAOLING BIO-PHARMACEUTICAL Co.Ltd, 1 Jinyu Street, Shaerqin Industrial Park, Hohhot Economic and Technological Development Zone, Inner Mongolia Autonomous Region, China
| | - Xiaogui Zhao
- MDL Biotech. Co. Ltd (Beijing, China), 432, Building 4, Block1, 4th Floor, Buildionfg1, NO.19 Xianlongshan Road, Haidian District, Beijing, China
| | - Zhiwei Yang
- MDL Biotech. Co. Ltd (Beijing, China), 432, Building 4, Block1, 4th Floor, Buildionfg1, NO.19 Xianlongshan Road, Haidian District, Beijing, China
| | - Xiaodan Wang
- College of Traditional Chinese Veterinary Medicine of Hebei Agricultural University, 289 Lingyusi Street, Baoding City, Hebei Province, China
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Li M, Zhong X, Xu W. Substance P Increases STAT6-Mediated Transcription Activation of Lymphocyte Cytosolic Protein 2 to Sustain M2 Macrophage Predominance in Pediatric Asthma. THE AMERICAN JOURNAL OF PATHOLOGY 2024; 194:238-252. [PMID: 37995836 DOI: 10.1016/j.ajpath.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 10/13/2023] [Accepted: 11/06/2023] [Indexed: 11/25/2023]
Abstract
Substance P (SP) is a neuropeptide released by neurons and participates in various biological processes, including inflammation. M2 macrophages are major immune cells associated with type 2 inflammation in asthma. This study investigated the effect of SP on macrophage phenotype in pediatric asthma and the underpinning factors. Asthmatic children exhibited an increased level of SP, along with a higher proportion of M2 macrophages in their bronchoalveolar lavage fluid. Flow cytometry revealed that SP treatment enhanced the M2 polarization of 12-O-tetradecanoylphorbol 13-acetate-treated THP-1 cells (macrophages) in vitro. By contrast, the administration of a neutralizing antibody of SP reduced the M2 macrophage population, mitigated inflammatory cell infiltration in mouse lung tissues, and decreased the population of immune cells in the mouse bronchoalveolar lavage fluid. SP up-regulated the expression of STAT6, which, in turn, activated the transcription of lymphocyte cytosolic protein 2 (LCP2). The population of macrophages and allergic inflammatory responses in mice were reduced by STAT6 inhibition but restored by LCP2 overexpression. Collectively, the present study demonstrated that SP sustains M2 macrophage predominance and allergic inflammation in pediatric asthma by enhancing STAT6-dependent transcription activation of LCP2.
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Affiliation(s)
- Miao Li
- Department of Pediatrics, Shengjing Hospital of China Medical University, Liaoning, China.
| | - Xiao Zhong
- Department of Pediatrics, Shengjing Hospital of China Medical University, Liaoning, China
| | - Wenting Xu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Liaoning, China
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Azzari NA, Segars KL, Rapaka S, Kushimi L, Rich CB, Trinkaus-Randall V. Aberrations in Cell Signaling Quantified in Diabetic Murine Globes after Injury. Cells 2023; 13:26. [PMID: 38201230 PMCID: PMC10778404 DOI: 10.3390/cells13010026] [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: 11/01/2023] [Revised: 12/12/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
The corneal epithelium is an avascular structure that has a unique wound healing mechanism, which allows for rapid wound closure without compromising vision. This wound healing mechanism is attenuated in diabetic patients, resulting in poor clinical outcomes and recurrent non-healing erosion. We investigated changes in cellular calcium signaling activity during the wound response in murine diabetic tissue using live cell imaging from both ex vivo and in vitro models. The calcium signaling propagation in diabetic cells was significantly decreased and displayed altered patterns compared to non-diabetic controls. Diabetic cells and tissue display distinct expression of the purinergic receptor, P2X7, which mediates the wound healing response. We speculate that alterations in P2X7 expression, interactions with other proteins, and calcium signaling activity significantly impact the wound healing response. This may explain aberrations in the diabetic wound response.
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Affiliation(s)
- Nicholas A. Azzari
- Department of Biochemistry and Cell Biology, Boston University Chobanian and Avedisian School of Medicine, 72 E. Concord St., Boston, MA 02118, USA; (N.A.A.); (C.B.R.)
| | - Kristen L. Segars
- Department of Pharmacology, Physiology and Biophysics, Boston University Chobanian and Avedisian School of Medicine, 72 E. Concord St., Boston, MA 02118, USA;
| | - Srikar Rapaka
- Department of Medicine, Boston University Chobanian and Avedisian School of Medicine, 72 E. Concord St., Boston, MA 02118, USA;
| | - Landon Kushimi
- Department of Computer Science, Center for Computing and Data Sciences, Boston University, 665 Commonwealth Ave, Boston, MA 02115, USA;
| | - Celeste B. Rich
- Department of Biochemistry and Cell Biology, Boston University Chobanian and Avedisian School of Medicine, 72 E. Concord St., Boston, MA 02118, USA; (N.A.A.); (C.B.R.)
| | - Vickery Trinkaus-Randall
- Department of Biochemistry and Cell Biology, Boston University Chobanian and Avedisian School of Medicine, 72 E. Concord St., Boston, MA 02118, USA; (N.A.A.); (C.B.R.)
- Department of Pharmacology, Physiology and Biophysics, Boston University Chobanian and Avedisian School of Medicine, 72 E. Concord St., Boston, MA 02118, USA;
- Department of Ophthalmology, Boston University Chobanian and Avedisian School of Medicine, 72 E. Concord St., Boston, MA 02118, USA
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Zhu Y, Jin X, Fu N, Li J. Medrysone promotes corneal injury repair by promoting M2-like polarization of macrophages. BMC Ophthalmol 2023; 23:503. [PMID: 38082280 PMCID: PMC10712160 DOI: 10.1186/s12886-023-03234-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Accumulated evidence suggests that M2-like polarized macrophages plays an important role in reducing inflammation, promoting and accelerating wound healing process and tissue repair. Thus, M2-like TAMs (Tumour-associated macrophages) was an appealing target for therapy intervention. METHOD Flow cytometry and RT-PCR assay were used to detect the polarization of macrophages induced by Medrysone, and the rat corneal mechanical injury model was established to evaluate the efficacy of Medrysone in cornel repair. RESULTS Here we found that Medrysone enhanced IL-4 induced M2 polarization of macrophages, as illustrated by increased expression of CD206, up-regulation of M2 marker mRNAs. Medrysone promoted VEGF and CCL2 secretion in IL-4 induced M2-like polarization. IL-4 triggered STAT6 activation was further enhanced by Medrysone and silencing of STAT6 partially abrogated the stimulatory effect of Medrysone. Medrysone improved migration-promoting feature of M2-like macrophages, as indicated by increased migration of endothelial cells. Further, Medrysone promoted corneal injury repair by inducing M2 polarization of macrophages in vivo. CONCLUSION Our study suggest that Medrysone promotes corneal injury repair by inducing the M2 polarization of macrophages, providing a theoretical basis for the application of Medrysone in the treatment of corneal injury.
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Affiliation(s)
- Yaqin Zhu
- Hangzhou Aier Eye Hospital, Hangzhou, 310000, Zhejiang, China
| | - Xiaohong Jin
- Hangzhou Aier Eye Hospital, Hangzhou, 310000, Zhejiang, China
| | - Ning Fu
- Sir Run Run Shaw Hospital Hangzhou, Hangzhou, 310000, China
| | - Jiuke Li
- Hangzhou Aier Eye Hospital, Hangzhou, 310000, Zhejiang, China.
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Loiseau A, Raîche-Marcoux G, Maranda C, Bertrand N, Boisselier E. Animal Models in Eye Research: Focus on Corneal Pathologies. Int J Mol Sci 2023; 24:16661. [PMID: 38068983 PMCID: PMC10706114 DOI: 10.3390/ijms242316661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 09/27/2023] [Accepted: 11/19/2023] [Indexed: 12/18/2023] Open
Abstract
The eye is a complex sensory organ that enables visual perception of the world. The dysfunction of any of these tissues can impair vision. Conduction studies on laboratory animals are essential to ensure the safety of therapeutic products directly applied or injected into the eye to treat ocular diseases before eventually proceeding to clinical trials. Among these tissues, the cornea has unique homeostatic and regenerative mechanisms for maintaining transparency and refraction of external light, which are essential for vision. However, being the outermost tissue of the eye and directly exposed to the external environment, the cornea is particularly susceptible to injury and diseases. This review highlights the evidence for selecting appropriate animals to better understand and treat corneal diseases, which rank as the fifth leading cause of blindness worldwide. The development of reliable and human-relevant animal models is, therefore, a valuable research tool for understanding and translating fundamental mechanistic findings, as well as for assessing therapeutic potential in humans. First, this review emphasizes the unique characteristics of animal models used in ocular research. Subsequently, it discusses current animal models associated with human corneal pathologies, their utility in understanding ocular disease mechanisms, and their role as translational models for patients.
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Affiliation(s)
- Alexis Loiseau
- Faculty of Medicine, Department of Ophthalmology and Otolaryngology—Head and Neck Surgery, CHU de Québec Research Center, Université Laval, Québec, QC G1S 4L8, Canada; (G.R.-M.); (C.M.)
| | - Gabrielle Raîche-Marcoux
- Faculty of Medicine, Department of Ophthalmology and Otolaryngology—Head and Neck Surgery, CHU de Québec Research Center, Université Laval, Québec, QC G1S 4L8, Canada; (G.R.-M.); (C.M.)
| | - Cloé Maranda
- Faculty of Medicine, Department of Ophthalmology and Otolaryngology—Head and Neck Surgery, CHU de Québec Research Center, Université Laval, Québec, QC G1S 4L8, Canada; (G.R.-M.); (C.M.)
| | - Nicolas Bertrand
- Faculty of Pharmacy, CHU de Quebec Research Center, Université Laval, Québec, QC G1V 4G2, Canada;
| | - Elodie Boisselier
- Faculty of Medicine, Department of Ophthalmology and Otolaryngology—Head and Neck Surgery, CHU de Québec Research Center, Université Laval, Québec, QC G1S 4L8, Canada; (G.R.-M.); (C.M.)
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Polopalli S, Saha A, Niri P, Kumar M, Das P, Kamboj DV, Chattopadhyay P. ROCK Inhibitors as an Alternative Therapy for Corneal Grafting: A Systematic Review. J Ocul Pharmacol Ther 2023; 39:585-599. [PMID: 37738326 DOI: 10.1089/jop.2023.0040] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/24/2023] Open
Abstract
Currently, corneal blindness is affecting >10 million individuals worldwide, and there is a significant unmet medical need because only 1.5% of transplantation needs are met globally due to a lack of high-quality grafts. In light of this global health disaster, researchers are developing corneal substitutes that can resemble the human cornea in vivo and replace human donor tissue. Thus, this review examines ROCK (Rho-associated coiled-coil containing protein kinases) inhibitors as a potential corneal wound-healing (CWH) therapy by reviewing the existing clinical and nonclinical findings. The systematic review was done from PubMed, Scopus, Web of Science, and Google Scholar for CWH, corneal injury, corneal endothelial wound healing, ROCK inhibitors, Fasudil, Netarsudil, Ripasudil, Y-27632, clinical trial, clinical study, case series, case reports, preclinical study, in vivo, and in vitro studies. After removing duplicates, all downloaded articles were examined. The literature search included the data till January 2023. This review summarized the results of ROCK inhibitors in clinical and preclinical trials. In a clinical trial, various ROCK inhibitors improved CWH in individuals with open-angle glaucoma, cataract, iris cyst, ocular hypertension, and other ocular diseases. ROCK inhibitors also improved ocular wound healing by increasing cell adhesion, migration, and proliferation in vitro and in vivo. ROCK inhibitors have antifibrotic, antiangiogenic, anti-inflammatory, and antiapoptotic characteristics in CWH, according to the existing research. ROCK inhibitors were effective topical treatments for corneal infections. Ripasudil, Y-27632, H-1152, Y-39983, and AMA0526 are a few new ROCK inhibitors that may help CWH and replace human donor tissue.
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Affiliation(s)
- Subramanyam Polopalli
- Division of Pharmaceutical Technology, Defence Research Laboratory (DRL), Defence Research and Development Organisation (DRDO), Tezpur, India
- Department of Chemical Technology, University of Calcutta, Kolkata, India
| | - Achintya Saha
- Department of Chemical Technology, University of Calcutta, Kolkata, India
| | - Pakter Niri
- Division of Pharmaceutical Technology, Defence Research Laboratory (DRL), Defence Research and Development Organisation (DRDO), Tezpur, India
- Department of Chemical Technology, University of Calcutta, Kolkata, India
| | - Mohit Kumar
- Division of Pharmaceutical Technology, Defence Research Laboratory (DRL), Defence Research and Development Organisation (DRDO), Tezpur, India
| | - Parikshit Das
- Division of Pharmaceutical Technology, Defence Research Laboratory (DRL), Defence Research and Development Organisation (DRDO), Tezpur, India
| | - Dev Vrat Kamboj
- Division of Pharmaceutical Technology, Defence Research Laboratory (DRL), Defence Research and Development Organisation (DRDO), Tezpur, India
| | - Pronobesh Chattopadhyay
- Division of Pharmaceutical Technology, Defence Research Laboratory (DRL), Defence Research and Development Organisation (DRDO), Tezpur, India
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Rodrigues-Braz D, Zhu L, Gélizé E, Clarin JP, Chatagnon X, Benzine Y, Rampignon P, Thouvenin A, Bourges JL, Behar-Cohen F, Zhao M. Spironolactone Eyedrop Favors Restoration of Corneal Integrity after Wound Healing in the Rat. Pharmaceuticals (Basel) 2023; 16:1446. [PMID: 37895917 PMCID: PMC10609951 DOI: 10.3390/ph16101446] [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: 07/20/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 10/29/2023] Open
Abstract
Abnormal corneal wound healing can compromise corneal transparency and lead to visual impairment. Mineralocorticoid receptor antagonists (MRA) are promising candidates to promote corneal remodeling with anti-inflammatory properties and lack gluococorticoids-associated side effects. In this preclinical study, a new polymer-free hydroxypropyl-gamma-cyclodextrin-based eyedrop containing 0.1% spironolactone (SPL), a potent but non-water-soluble MRA, was investigated for its ocular surface tolerance and efficacy in a rat model of corneal wound healing. SPL eyedrops were stable for up to 9 months at 4 °C. The formulation was well-tolerated since no morphological changes or inflammatory reactions were observed in the rat cornea after multiple daily instillations over 7 days. SPL eyedrops accelerated rat corneal wound healing, reduced corneal edema and inflammation, enhanced epithelial integrity, and improved nerve regeneration, suggesting restoration of corneal homeostasis, while potassium canrenoate, an active and soluble metabolite of SPL, had no effect. SPL eyedrops could benefit patients with impaired corneal wound healing, including that secondary to glucocorticoid therapy. Repurposing known drugs with known excipients will expedite translation to the clinic.
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Affiliation(s)
- Daniela Rodrigues-Braz
- Centre de Recherche des Cordeliers, Inserm, Université Paris Cité, Sorbonne Université, 75006 Paris, France; (D.R.-B.); (L.Z.); (E.G.); (J.-L.B.); (M.Z.)
| | - Linxin Zhu
- Centre de Recherche des Cordeliers, Inserm, Université Paris Cité, Sorbonne Université, 75006 Paris, France; (D.R.-B.); (L.Z.); (E.G.); (J.-L.B.); (M.Z.)
| | - Emmanuelle Gélizé
- Centre de Recherche des Cordeliers, Inserm, Université Paris Cité, Sorbonne Université, 75006 Paris, France; (D.R.-B.); (L.Z.); (E.G.); (J.-L.B.); (M.Z.)
| | | | | | | | | | - Agathe Thouvenin
- CNRS, Inserm, UTCBS, Université Paris Cité, 75006 Paris, France;
- Département Recherche et Développement Pharmaceutique, Agence Générale des Equipements et Produits de Santé (AGEPS), AP-HP, 75005 Paris, France
| | - Jean-Louis Bourges
- Centre de Recherche des Cordeliers, Inserm, Université Paris Cité, Sorbonne Université, 75006 Paris, France; (D.R.-B.); (L.Z.); (E.G.); (J.-L.B.); (M.Z.)
- Ophtalmopole, AP-HP, Cochin Hospital, 75014 Paris, France
| | - Francine Behar-Cohen
- Centre de Recherche des Cordeliers, Inserm, Université Paris Cité, Sorbonne Université, 75006 Paris, France; (D.R.-B.); (L.Z.); (E.G.); (J.-L.B.); (M.Z.)
- Ophtalmopole, AP-HP, Cochin Hospital, 75014 Paris, France
- Hôpital Foch, Service D’ophtalmologie, 92150 Suresnes, France
| | - Min Zhao
- Centre de Recherche des Cordeliers, Inserm, Université Paris Cité, Sorbonne Université, 75006 Paris, France; (D.R.-B.); (L.Z.); (E.G.); (J.-L.B.); (M.Z.)
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Qin L, Li Q, Wang L, Huang Y. Mass cytometry reveals the corneal immune cell changes at single cell level in diabetic mice. Front Endocrinol (Lausanne) 2023; 14:1253188. [PMID: 37732130 PMCID: PMC10507693 DOI: 10.3389/fendo.2023.1253188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 08/17/2023] [Indexed: 09/22/2023] Open
Abstract
Introduction Diabetic ocular complications include sight-threatening consequences and decreased corneal sensitivity, characterized by decreased tear production, corneal sensitivity and delayed corneal epithelial wound healing. The pathogenesis of diabetic corneal disorders remains largely unknown. Growing evidence implies the participation of immune cells in the development of diabetic corneal diseases. Nonetheless, the immunological changes that result in diabetic corneal problems are largely unknown. Methods Mass cytometry by time of flight (CyTOF) was used to investigate immune cell cluster alterations associated with diabetic corneal disorders. CyTOF test was performed on corneal cells at a single level from 21-week-old diabetic (db/db) and non-diabetic (db/m) mice. A panel of 41 immune-related markers monitored different immune cell types in diabetic corneas. To investigate the proportion of each immune cell subpopulation, an unsupervised clustering method was employed, and T-distributed stochastic neighbor embedding was used to visualize the distinctions between different immune cell subsets. Results Through CyTOF test, we identified 10 immune cell subsets in the corneal tissues. In a novel way, we discovered significant immune alterations in diabetic corneas, including pronounced alterations in T cells and myeloid cell subgroups in diabetic corneas linked to potential biomarkers, including CD103, CCR2, SiglecF, Ly6G, and CD172a. Comprehensive immunological profiling indicated remarkable changes in the immune microenvironment in diabetic corneas, characterized by a notable decrease in CD103+CD8+ tissue-resident memory T (TRM) cells and Tregs, as well as a dramatic increase of γδT cells and subsets of CD11b+Ly6G+ myeloid-derived suppressor cells (MDSCs). Conclusion CyTOF analysis revealed significant alterations in the immune microenvironment during the development of diabetic corneal complications. This study mapped the immune microenvironment landscape of type 2 diabetic corneas, providing a fundamental understanding of immune-driven diabetic corneal disorders.
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Affiliation(s)
- Limin Qin
- Department of Ophthalmology, The Third Medical Center, Chinese People's Liberation Army of China General Hospital, Beijing, China
- Department of Ophthalmology, The First Medical Center, Chinese People's Liberation Army of China General Hospital, Beijing, China
- Department of Ophthalmology, Medical School of Chinese People’s Liberation Army (PLA), Beijing, China
| | - Qian Li
- Department of Ophthalmology, The Third Medical Center, Chinese People's Liberation Army of China General Hospital, Beijing, China
- Department of Ophthalmology, The First Medical Center, Chinese People's Liberation Army of China General Hospital, Beijing, China
- Department of Ophthalmology, Medical School of Chinese People’s Liberation Army (PLA), Beijing, China
| | - Liqiang Wang
- Department of Ophthalmology, The Third Medical Center, Chinese People's Liberation Army of China General Hospital, Beijing, China
| | - Yifei Huang
- Department of Ophthalmology, The Third Medical Center, Chinese People's Liberation Army of China General Hospital, Beijing, China
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11
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Lu X, Chen Z, Lu J, Watsky M. Effects of Topical 1,25 and 24,25 Vitamin D on Diabetic, Vitamin D Deficient and Vitamin D Receptor Knockout Mouse Corneal Wound Healing. Biomolecules 2023; 13:1065. [PMID: 37509101 PMCID: PMC10377579 DOI: 10.3390/biom13071065] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/30/2023] Open
Abstract
Delayed or prolonged corneal wound healing and non-healing corneas put patients at risk for ocular surface infections and subsequent stromal opacification, resulting in discomfort or visual loss. It is important to enhance corneal wound healing efficiency and quality. Vitamin D (Vit D) is both a hormone and a vitamin, and its insufficiency has been linked to immune disorders and diabetes. For this study, wound healing and recruitment of CD45+ cells into the wound area of normoglycemic and diabetic mice were examined following corneal epithelial debridement and treatment with 1,25-dihyroxyvitamin D (1,25 Vit D) or 24,25-dihydroxyvitamin D (24,25 Vit D). Treatment with topical 1,25-dihyroxyvitamin D (1,25 Vit D) resulted in significantly increased corneal wound healing rates of normoglycemic, diabetic and diabetic Vit D deficient mice. Furthermore, 24,25-dihydroxyvitamin D (24,25 Vit D) significantly increased corneal wound healing of diabetic Vit D deficient and Vit D receptor knockout (VDR KO) mice. In addition, CD45+ cell numbers were reduced in diabetic and VDR KO mouse corneas compared to normoglycemic mice, and 24,25 Vit D increased the recruitment of CD45+ cells to diabetic mouse corneas after epithelial debridement. CD45+ cells were found to infiltrate into the corneal basal epithelial layer after corneal epithelial debridement. Our data indicate that topical Vit D promotes corneal wound healing and further supports previous work that the Vit D corneal wound healing effect is not totally VDR-dependent.
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Affiliation(s)
| | | | | | - Mitchell Watsky
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA
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12
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Wu J, Gao J, Yi L, Gao N, Wang L, Zhu J, Dai C, Sun L, Guo H, Yu FSX, Wu X. Protective effects of resolvin D1 in Pseudomonas aeruginosa keratitis. Mol Immunol 2023; 158:35-42. [PMID: 37104999 DOI: 10.1016/j.molimm.2023.04.007] [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: 08/06/2022] [Revised: 03/31/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023]
Abstract
PURPOSE Here, we explored the protective effects of resolvin D1 (RvD1) in Pseudomonas aeruginosa (PA) keratitis. METHODS C57BL/6 (B6) mice were used as an animal model of PA keratitis. Plate counting and clinical scores were used to assess the severity of the infection and the therapeutic effects of RvD1 in the model. Myeloperoxidase assay was used to detect neutrophil infiltration and activity. Quantitative PCR (qPCR) was used to examine the expression of proflammatory and anti-inflammatory mediators. Immunofluorescence staining and qPCR were performed to identify macrophage polarization. RESULTS RvD1 treatment alleviated PA keratitis severity by decreasing corneal bacterial load and inhibiting neutrophil infiltration in the mouse model. Furthermore, RvD1 treatment decreased mRNA levels of TNF-α, IFN-γ, IL-1β, CXCL1, and S100A8/9 while increasing those of IL-1RA, IL-10, and TGF-β1. RvD1 treatment also reduced the aggregation of M1 macrophages and increased that of M2 macrophages. RvD1 provided an auxiliary effect in gatifloxacin-treated mice with PA keratitis. CONCLUSION Based on these findings, RvD1 may improve the prognosis of PA keratitis by inhibiting neutrophil recruitment and activity, dampening the inflammatory response, and promoting M2 macrophage polarization. Thus, RvD1 may be a potential complementary therapy for PA keratitis.
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Affiliation(s)
- Jiayin Wu
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, Shandong 250014, China; Department of Ophthalmology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, China
| | - Jianlu Gao
- Department of Ophthalmology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, China
| | - Lili Yi
- Joint Laboratory for Translational Medicine Research, Liaocheng People's Hospital, Liaocheng 252000, China
| | - Nan Gao
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Leyi Wang
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, Shandong 250014, China
| | - Jing Zhu
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, Shandong 250014, China
| | - Chenyang Dai
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, Shandong 250014, China
| | - Lin Sun
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, Shandong 250014, China
| | - Hui Guo
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, Shandong 250014, China
| | - Fu-Shin X Yu
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Xinyi Wu
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, Shandong 250014, China.
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13
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Liu F, Liu C, Lee IXY, Lin MTY, Liu YC. Corneal dendritic cells in diabetes mellitus: A narrative review. Front Endocrinol (Lausanne) 2023; 14:1078660. [PMID: 36777336 PMCID: PMC9911453 DOI: 10.3389/fendo.2023.1078660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 01/12/2023] [Indexed: 01/28/2023] Open
Abstract
Diabetes mellitus is a global public health problem with both macrovascular and microvascular complications, such as diabetic corneal neuropathy (DCN). Using in-vivo confocal microscopy, corneal nerve changes in DCN patients can be examined. Additionally, changes in the morphology and quantity of corneal dendritic cells (DCs) in diabetic corneas have also been observed. DCs are bone marrow-derived antigen-presenting cells that serve both immunological and non-immunological roles in human corneas. However, the role and pathogenesis of corneal DC in diabetic corneas have not been well understood. In this article, we provide a comprehensive review of both animal and clinical studies that report changes in DCs, including the DC density, maturation stages, as well as relationships between the corneal DCs, corneal nerves, and corneal epithelium, in diabetic corneas. We have also discussed the associations between the changes in corneal DCs and various clinical or imaging parameters, including age, corneal nerve status, and blood metabolic parameters. Such information would provide valuable insight into the development of diagnostic, preventive, and therapeutic strategies for DM-associated ocular surface complications.
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Affiliation(s)
- Fengyi Liu
- University of Cambridge, Girton College, Cambridgeshire, United Kingdom
| | - Chang Liu
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Tissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, Singapore, Singapore
| | - Isabelle Xin Yu Lee
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Tissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, Singapore, Singapore
| | - Molly Tzu Yu Lin
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Tissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, Singapore, Singapore
| | - Yu-Chi Liu
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Tissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, Singapore, Singapore
- Cornea and Refractive Surgery Group, Singapore Eye Research Institute, Singapore, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore, Singapore
- Department of Ophthalmology, National Taiwan University, Taipei, Taiwan
- *Correspondence: Yu-Chi Liu,
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Mussi N, Stuard WL, Sanches JM, Robertson DM. Chronic Hyperglycemia Compromises Mitochondrial Function in Corneal Epithelial Cells: Implications for the Diabetic Cornea. Cells 2022; 11:cells11162567. [PMID: 36010643 PMCID: PMC9406817 DOI: 10.3390/cells11162567] [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: 06/14/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
Mitochondrial dysfunction is a major pathophysiological event leading to the onset of diabetic complications. This study investigated the temporal effects of hyperglycemia on mitochondrial metabolism in corneal epithelial cells. To accomplish this, human telomerase-immortalized corneal epithelial cells were cultured in a defined growth medium containing 6 mM glucose. To simulate hyperglycemia, cells were cultured in a medium containing 25 mM D-glucose, and control cells were cultured in mannitol. Using metabolic flux analysis, there was a hyperosmolar-mediated increase in mitochondrial respiration after 24 h. By day 5, there was a decrease in spare respiratory capacity in cells subject to high glucose that remained suppressed throughout the 14-day period. Although respiration remained high through day 9, glycolysis was decreased. Mitochondrial respiration was decreased by day 14. This was accompanied by the restoration of glycolysis to normoglycemic levels. These changes paralleled a decrease in mitochondrial polarization and cell cycle arrest. Together, these data show that chronic but not acute hyperglycemic stress leads to mitochondrial dysfunction. Moreover, the hyperglycemia-induced loss of spare respiratory capacity reduces the ability of corneal epithelial cells to respond to subsequent stress. Compromised mitochondrial function represents a previously unexplored mechanism that likely contributes to corneal complications in diabetes.
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15
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Poe AJ, Shah R, Khare D, Kulkarni M, Phan H, Ghiam S, Punj V, Ljubimov AV, Saghizadeh M. Regulatory role of miR-146a in corneal epithelial wound healing via its inflammatory targets in human diabetic cornea. Ocul Surf 2022; 25:92-100. [PMID: 35690236 DOI: 10.1016/j.jtos.2022.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 06/03/2022] [Accepted: 06/06/2022] [Indexed: 12/11/2022]
Abstract
PURPOSE MiR-146a upregulated in limbus vs. central cornea and in diabetic vs. non-diabetic limbus has emerged as an important immune and inflammatory signaling mediator in corneal epithelial wound healing. Our aim was to investigate the potential inflammation-related miR-146a target genes and their roles in normal and impaired diabetic corneal epithelial wound healing. METHODS Our previous data from RNA-seq combined with quantitative proteomics of limbal epithelial cells (LECs) transfected with miR-146a mimic vs. mimic control were analyzed. Western blot and immunostaining were used to confirm the expression of miR-146a inflammatory target proteins in LECs and organ-cultured corneas. Luminex assay was performed on conditioned media at 6- and 20-h post-wounding in miR-146a mimic/inhibitor transfected normal and diabetic cultured LECs. RESULTS Overexpression of miR-146a decreased the expression of pro-inflammatory TRAF6 and IRAK1 and downstream target NF-κB after challenge with lipopolysaccharide (LPS) or wounding. Additionally, miR-146a overexpression suppressed the production of downstream inflammatory mediators including secreted cytokines IL-1α, IL-1β, IL-6 and IL-8, and chemokines CXCL1, CXCL2 and CXCL5. These cytokines and chemokines were upregulated in normal but not in diabetic LEC during wounding. Furthermore, we achieved normalized levels of altered secreted cytokines and chemokines in diabetic wounded LEC via specific inhibition of miR-146a. CONCLUSION Our study documented significant impact of miR-146a on the expression of inflammatory mediators at the mRNA and protein levels during acute inflammatory responses and wound healing, providing insights into the regulatory role of miR-146a in corneal epithelial homeostasis in normal and diabetic conditions.
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Affiliation(s)
- Adam J Poe
- Eye Program, Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Ruchi Shah
- Eye Program, Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Drirh Khare
- Eye Program, Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Mangesh Kulkarni
- Eye Program, Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Hong Phan
- Eye Program, Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA; David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Sean Ghiam
- Eye Program, Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA; David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Vasu Punj
- Department of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Alexander V Ljubimov
- Eye Program, Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA; David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Mehrnoosh Saghizadeh
- Eye Program, Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA; David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.
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16
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Bu Y, Shih KC, Tong L. The ocular surface and diabetes, the other 21st Century epidemic. Exp Eye Res 2022; 220:109099. [DOI: 10.1016/j.exer.2022.109099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 11/25/2022]
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17
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Kotlyarov S, Kotlyarova A. Molecular Pharmacology of Inflammation Resolution in Atherosclerosis. Int J Mol Sci 2022; 23:ijms23094808. [PMID: 35563200 PMCID: PMC9104781 DOI: 10.3390/ijms23094808] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/18/2022] [Accepted: 04/25/2022] [Indexed: 02/01/2023] Open
Abstract
Atherosclerosis is one of the most important problems of modern medicine as it is the leading cause of hospitalizations, disability, and mortality. The key role in the development and progression of atherosclerosis is the imbalance between the activation of inflammation in the vascular wall and the mechanisms of its control. The resolution of inflammation is the most important physiological mechanism that is impaired in atherosclerosis. The resolution of inflammation has complex, not fully known mechanisms, in which lipid mediators derived from polyunsaturated fatty acids (PUFAs) play an important role. Specialized pro-resolving mediators (SPMs) represent a group of substances that carry out inflammation resolution and may play an important role in the pathogenesis of atherosclerosis. SPMs include lipoxins, resolvins, maresins, and protectins, which are formed from PUFAs and regulate many processes related to the active resolution of inflammation. Given the physiological importance of these substances, studies examining the possibility of pharmacological effects on inflammation resolution are of interest.
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Affiliation(s)
- Stanislav Kotlyarov
- Department of Nursing, Ryazan State Medical University, 390026 Ryazan, Russia
- Correspondence:
| | - Anna Kotlyarova
- Department of Pharmacology and Pharmacy, Ryazan State Medical University, 390026 Ryazan, Russia;
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18
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Liang W, Huang L, Ma X, Dong L, Cheng R, Dehdarani M, Karamichos D, Ma JX. Pathogenic Role of Diabetes-Induced Overexpression of Kallistatin in Corneal Wound Healing Deficiency Through Inhibition of Canonical Wnt Signaling. Diabetes 2022; 71:747-761. [PMID: 35044447 PMCID: PMC8965664 DOI: 10.2337/db21-0740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 12/27/2021] [Indexed: 01/21/2023]
Abstract
It was reported previously that circulation levels of kallistatin, an endogenous Wnt signaling inhibitor, are increased in patients with diabetes. The current study was conducted to determine the role of kallistatin in delayed wound healing in diabetic corneas. Immunostaining and Western blot analysis showed kallistatin levels were upregulated in corneas from humans and rodents with diabetes. In murine corneal wound healing models, the canonical Wnt signaling was activated in nondiabetic corneas and suppressed in diabetic corneas, correlating with delayed wound healing. Transgenic expression of kallistatin suppressed the activation of Wnt signaling in the cornea and delayed wound healing. Local inhibition of Wnt signaling in the cornea by kallistatin, an LRP6-blocking antibody, or the soluble VLDL receptor ectodomain (an endogenous Wnt signaling inhibitor) delayed wound healing. In contrast, ablation of the VLDL receptor resulted in overactivation of Wnt/β-catenin signaling and accelerated corneal wound healing. Activation of Wnt signaling in the cornea accelerated wound healing. Activation of Wnt signaling promoted human corneal epithelial cell migration and proliferation, which was attenuated by kallistatin. Our findings suggested that diabetes-induced overexpression of kallistatin contributes to delayed corneal wound healing by inhibiting the canonical Wnt signaling. Thus, kallistatin and Wnt/β-catenin signaling in the cornea could be potential therapeutic targets for diabetic corneal complications.
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Affiliation(s)
- Wentao Liang
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Li Huang
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Xiang Ma
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Lijie Dong
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
- Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Rui Cheng
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Marcus Dehdarani
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Dimitrios Karamichos
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX
- Department of Pharmaceutical Sciences, University of North Texas Health Science Center, Fort Worth, TX
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX
| | - Jian-xing Ma
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
- Corresponding author: Jian-xing Ma,
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Zhou Q, Yang L, Wang Q, Li Y, Wei C, Xie L. Mechanistic investigations of diabetic ocular surface diseases. Front Endocrinol (Lausanne) 2022; 13:1079541. [PMID: 36589805 PMCID: PMC9800783 DOI: 10.3389/fendo.2022.1079541] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 12/02/2022] [Indexed: 12/23/2022] Open
Abstract
With the global prevalence of diabetes mellitus over recent decades, more patients suffered from various diabetic complications, including diabetic ocular surface diseases that may seriously affect the quality of life and even vision sight. The major diabetic ocular surface diseases include diabetic keratopathy and dry eye. Diabetic keratopathy is characterized with the delayed corneal epithelial wound healing, reduced corneal nerve density, decreased corneal sensation and feeling of burning or dryness. Diabetic dry eye is manifested as the reduction of tear secretion accompanied with the ocular discomfort. The early clinical symptoms include dry eye and corneal nerve degeneration, suggesting the early diagnosis should be focused on the examination of confocal microscopy and dry eye symptoms. The pathogenesis of diabetic keratopathy involves the accumulation of advanced glycation end-products, impaired neurotrophic innervations and limbal stem cell function, and dysregulated growth factor signaling, and inflammation alterations. Diabetic dry eye may be associated with the abnormal mitochondrial metabolism of lacrimal gland caused by the overactivation of sympathetic nervous system. Considering the important roles of the dense innervations in the homeostatic maintenance of cornea and lacrimal gland, further studies on the neuroepithelial and neuroimmune interactions will reveal the predominant pathogenic mechanisms and develop the targeting intervention strategies of diabetic ocular surface complications.
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Affiliation(s)
- Qingjun Zhou
- State Key Laboratory Cultivation Base, Eye Institute of Shandong First Medical University, Qingdao, China
- Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Lingling Yang
- State Key Laboratory Cultivation Base, Eye Institute of Shandong First Medical University, Qingdao, China
- Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Qun Wang
- State Key Laboratory Cultivation Base, Eye Institute of Shandong First Medical University, Qingdao, China
- Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Ya Li
- State Key Laboratory Cultivation Base, Eye Institute of Shandong First Medical University, Qingdao, China
- Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Chao Wei
- State Key Laboratory Cultivation Base, Eye Institute of Shandong First Medical University, Qingdao, China
- Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Lixin Xie
- State Key Laboratory Cultivation Base, Eye Institute of Shandong First Medical University, Qingdao, China
- Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
- *Correspondence: Lixin Xie,
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20
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Hwang SB, Park JH, Park JY, Kang SS, Chung HS, Lee H, Kim JY, Tchah H. Anti-inflammatory and anti-apoptotic effects of N-acetylcysteine in diabetic rat corneal epithelium. Int J Ophthalmol 2021; 14:1805-1812. [PMID: 34926192 DOI: 10.18240/ijo.2021.12.01] [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: 01/25/2021] [Accepted: 05/27/2021] [Indexed: 11/23/2022] Open
Abstract
AIM To characterize the anti-inflammatory and anti-apoptotic effects of N-acetylcysteine (NAC) in streptozotocin (STZ)-induced diabetic rat corneal epithelium and human corneal epithelial cells (HCECs) exposed to a high-glucose environment. METHODS HCECs were incubated in 0, 5, 50 mmol/L glucose medium, or 50 mmol/L glucose medium with NAC for 24h. Diabetes was induced in rats by intraperitoneal injection of 65 mg/kg STZ and some of these rats were topically administered NAC to corneas with 3 mice per group. We characterized receptor for advanced glycation end-products (RAGE) expression using immunofluorescence, and interleukin (IL)-1β and cleaved caspase-3 (CCAP-3) expression using immunohistochemistry. Circulating tumor necrosis factor (TNF)-α concentration was measured by ELISA and cleaved poly-ADP ribose polymerase (PARP) concentration was quantified by Western blotting. Apoptotic cells were detected using TUNEL assay and annexin V and propidium iodide staining. RESULTS Diabetic rats had higher expression of RAGE (2.46±0.13 fold), IL-1β, and CCAP-3 in apoptotic cells of their corneas than control rats. The expression of RAGE (1.83±0.11 fold), IL-1β, and CCAP-3, and the number of apoptotic cells, were reduced by topical NAC treatment. HCECs incubated in 50 mmol/L glucose medium showed high concentrations of TNF-α (310±2.00 pg/mL) and cleaved PARP (7.43±0.56 fold), and more extensive apoptosis than cells in 50 mmol/L glucose medium. However, the addition of NAC reduced the concentrations of TNF-α (153.67±2.31 pg/mL) and cleaved PARP (5.55±0.31 fold) and the number of apoptotic cells. CONCLUSION NAC inhibits inflammation and apoptosis in the corneas of diabetic rats and HCECs maintained in a high-glucose environment.
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Affiliation(s)
- Sae-Byeok Hwang
- Research Institute of Miso Eye Clinic, Gyeonggi-do 13640, Republic of Korea.,Biomedical Research Center, Asan Institute for Life Science, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Jin Hyoung Park
- Research Institute of Miso Eye Clinic, Gyeonggi-do 13640, Republic of Korea.,Biomedical Research Center, Asan Institute for Life Science, Asan Medical Center, Seoul 05505, Republic of Korea.,Miso Eye Clinic, Gyeonggi-do 13640, Republic of Korea
| | - Ji-Yun Park
- Department of Ophthalmology, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Soon-Suk Kang
- Biomedical Research Center, Asan Institute for Life Science, Asan Medical Center, Seoul 05505, Republic of Korea.,Research Institute for Biomacromolecules, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Ho Seok Chung
- Department of Ophthalmology, Dankook University Hospital, Dankook University College of Medicine, Cheonan 31116, Republic of Korea
| | - Hun Lee
- Biomedical Research Center, Asan Institute for Life Science, Asan Medical Center, Seoul 05505, Republic of Korea.,Department of Ophthalmology, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Jae Yong Kim
- Biomedical Research Center, Asan Institute for Life Science, Asan Medical Center, Seoul 05505, Republic of Korea.,Department of Ophthalmology, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Hungwon Tchah
- Biomedical Research Center, Asan Institute for Life Science, Asan Medical Center, Seoul 05505, Republic of Korea.,Department of Ophthalmology, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
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21
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Sinha NR, Balne PK, Bunyak F, Hofmann AC, Lim RR, Mohan RR, Chaurasia SS. Collagen matrix perturbations in corneal stroma of Ossabaw mini pigs with type 2 diabetes. Mol Vis 2021; 27:666-678. [PMID: 35002212 PMCID: PMC8684810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 12/05/2021] [Indexed: 11/17/2022] Open
Abstract
Purpose Diabetes mellitus (DM) is a metabolic disorder that affects over 450 million people worldwide. DM is characterized by hyperglycemia, causing severe systemic damage to the heart, kidneys, skin, vasculature, nerves, and eye. Type 2 diabetes (T2DM) constitutes 90% of clinical cases and is the most common cause of blindness in working adults. Also, about 70% of T2DM patients show corneal complications including delayed wound healing, often described as diabetic keratopathy (DK). Despite the increasing severity of DM, the research on DK is bleak. This study investigated cellular morphology and collagen matrix alterations of the diabetic and non-diabetic corneas collected from Ossabaw mini pigs, a T2DM animal model with a "thrifty genotype." Methods Pig corneas were collected from six-month-old Ossabaw miniature pigs fed on a western diet (WD) for ten weeks. The tissues were processed for immunohistochemistry and analyzed using hematoxylin and eosin staining, Mason Trichrome staining, Picrosirus Red staining, Collage I staining, and TUNEL assay. mRNA was prepared to quantify fibrotic gene expression using quantitative reverse-transcriptase PCR (qRT-PCR). Transmission electron microscopy (TEM) was performed to evaluate stromal fibril arrangements to compare collagen dynamics in WD vs. standard diet (SD) fed Ossabaw pig corneas. Results Ossabaw mini pigs fed on a WD for 10 weeks exhibit classic symptoms of metabolic syndrome and hyperglycemia seen in T2DM patients. We observed significant disarray in cornea stromal collagen matrix in Ossabaw mini pigs fed on WD compared to the age-matched mini pigs fed on a standard chow diet using Masson Trichome and Picrosirius Red staining. Furthermore, ultrastructure evaluation using TEM showed alterations in stromal collagen fibril size and organization in diabetic corneas compared to healthy age-matched corneas. These changes were accompanied by significantly decreased levels of Collagen IV and increased expression of matrix metallopeptidase 9 in WD-fed pigs. Conclusions This pilot study indicates that Ossabaw mini pigs fed on WD showed collagen disarray and altered gene expression involved in wound healing, suggesting that corneal stromal collagens are vulnerable to diabetic conditions.
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Affiliation(s)
- Nishant R. Sinha
- Harry S. Truman Memorial Veterans’ Hospital, Columbia, MO
- One-Health Vision Research Program, Departments of Ophthalmology and Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO
| | - Praveen K. Balne
- Harry S. Truman Memorial Veterans’ Hospital, Columbia, MO
- One-Health Vision Research Program, Departments of Ophthalmology and Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO
| | - Filiz Bunyak
- Department of Computer Science, University of Missouri, Columbia, MO
| | - Alexandria C. Hofmann
- One-Health Vision Research Program, Departments of Ophthalmology and Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO
| | - Rayne R. Lim
- Department of Ophthalmology, University of Washington, Seattle, WA
| | - Rajiv R. Mohan
- Harry S. Truman Memorial Veterans’ Hospital, Columbia, MO
- One-Health Vision Research Program, Departments of Ophthalmology and Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO
- Mason Eye Institute, School of Medicine, University of Missouri, Columbia, MO
| | - Shyam S. Chaurasia
- One-Health Vision Research Program, Departments of Ophthalmology and Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO
- Department of Ophthalmology and Visual Sciences, The Eye Institute, Medical College of Wisconsin, Milwaukee, WI
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22
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Resolvin D1, therapeutic target in acute respiratory distress syndrome. Eur J Pharmacol 2021; 911:174527. [PMID: 34582846 PMCID: PMC8464084 DOI: 10.1016/j.ejphar.2021.174527] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 09/09/2021] [Accepted: 09/23/2021] [Indexed: 12/25/2022]
Abstract
Acute lung injury (ALI), or its more severe form, acute respiratory distress syndrome (ARDS), is a disease with high mortality and is a serious challenge facing the World Health Organization because there is no specific treatment. The excessive and prolonged immune response is the hallmark of this disorder, so modulating and regulating inflammation plays an important role in its prevention and treatment. Resolvin D1 (RvD1) as a specialized pro-resolving mediator has the potential to suppress the expression of inflammatory cytokines and to facilitate the production of antioxidant proteins by stimulating lipoxin A4 receptor/formyl peptide receptor 2 (ALX/FPR2). These changes limit the invasion of immune cells into the lung tissue, inhibit coagulation, and enhance cell protection against oxidative stress (OS). In particular, this biomolecule reduces the generation of reactive oxygen species (ROS) by blocking the activation of inflammatory transcription factors, especially nuclear factor-κB (NF-κB), and accelerating the synthesis of antioxidant compounds such as heme oxygenase 1 (HO-1) and superoxide dismutase (SOD). Therefore, the destruction and dysfunction of important cell components such as cytoplasmic membrane, mitochondria, Na+/k + adenosine triphosphatase (ATPase) and proteins involved in the phagocytic activity of scavenger macrophages are attenuated. Numerous studies on the effect of RvD1 over inflammation using animal models revealed that Rvs have both anti-inflammatory and pro-resolving capabilities and therefore, might have potential therapeutic value in treating ALI. Here, we review the current knowledge on the classification, biosynthesis, receptors, mechanisms of action, and role of Rvs in ALI/ARDS.
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23
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Kaushik M, Nawaz S, Qureshi TS. Profile of sight-threatening diabetic retinopathy and its awareness among patients with diabetes mellitus attending a tertiary care center in Kashmir, India. Indian J Ophthalmol 2021; 69:3123-3130. [PMID: 34708753 PMCID: PMC8725088 DOI: 10.4103/ijo.ijo_831_21] [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: 11/16/2022] Open
Abstract
Purpose: To study the profile of sight-threatening diabetic retinopathy (STDR), its association with various factors affecting it, and awareness of diabetic retinopathy (DR) among patients with diabetes mellitus (DM) attending a tertiary care center in Kashmir. Methods: In this prospective cross-sectional study, 625 consecutive patients with DM were assessed for STDR. Demographic/clinical data were obtained. Early treatment diabetic retinopathy study (ETDRS) criteria were used to grade fundus photographs. Severe nonproliferative DR, proliferative DR, and/or macular edema were classified as STDR. Optical coherence tomography was used to confirm the diagnosis of macular edema. Results: The mean age of patients was 56.36 ± 9.29 years. The male-to-female ratio was 0.92:1. The majority (99.36%) of patients had type 2 DM. STDR was seen in 208 (33.28%) patients. Non-sight-threatening diabetic retinopathy (NSTDR) was seen in 173 (27.68%) patients. Eye care was sought by 313 (50.08%) patients for the first time. STDR had a significant association with difficulty in accessing the health care facilities, duration of diabetes, uncontrolled diabetes, presence of other diabetes complications, use of insulin, and hypertension (P < 0.05 for all). Awareness that diabetes can affect eyes showed a significant association with age, gender, educational status, duration of diabetes, glycemic status, DR, and STDR (P < 0.001 for all). Conclusion: STDR is a common complication in diabetes and is duration- and glycemic control-dependent. Understanding the factors associated with STDR can help in making strategies for its prevention. Spreading awareness regarding STDR at the community level in the Kashmir valley is crucial in this regard.
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Affiliation(s)
- Madhurima Kaushik
- Department of Ophthalmology, Govt. Medical College, Srinagar, Jammu and Kashmir, India
| | - Shah Nawaz
- Department of Ophthalmology, Govt. Medical College, Srinagar, Jammu and Kashmir, India
| | - Tariq Syed Qureshi
- Department of Ophthalmology, Govt. Medical College, Srinagar, Jammu and Kashmir, India
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24
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Kang WS, Choi H, Lee KH, Kim E, Kim KJ, Kim JS, Na CS, Kim S. Peucedanum japonicum Thunberg and Its Active Components Mitigate Oxidative Stress, Inflammation and Apoptosis after Urban Particulate Matter-Induced Ocular Surface Damage. Antioxidants (Basel) 2021; 10:1717. [PMID: 34829588 PMCID: PMC8614870 DOI: 10.3390/antiox10111717] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 11/16/2022] Open
Abstract
We previously demonstrated that urban particulate matter (UPM) exposure decreases the migration activity and survival of human corneal epithelial cells (HCECs). Herein, we investigated the potential to improve the corneal wound-healing ability of Peucedanum japonicum Thunb. leaf extract (PJE) and its active components on UPM-induced ocular surface damage in vitro and in vivo. PJE effectively assisted wound healing without altering HCEC survival and enhanced catalase (CAT), heme oxygenase 1 (HO1) and glutathione peroxidase 1 (GPX1) antioxidant gene expression. A corneal wound was uniformly induced on the right eye in all experimental animals and divided into eight groups such as two control groups (wounded right eye group-NR and non-wounded left eye group-NL), UPM treated group and PJEs (25, 50, 100, 200, 400 mg/kg) treated groups. Corneal abrasion model rats exposed to UPM showed delayed wound healing compared to unexposed rats, but wound healing was dose-dependently enhanced by PJE oral administration. Seventy-two hours after wound generation, inflammatory cells, apoptotic cells and interleukin-6 (IL-6) expression were increased substantially after UPM exposure, but PJE treatment significantly reduced the wound to an almost normal level while enhancing re-epithelialization without changing corneal thickness. Next, we tried to identify the key molecules for enhancing wound healing through fractionation. The major compounds in the fraction, confirmed by high-performance liquid chromatography (HPLC), were chlorogenic acid (CA), neochlorogenic acid (NCA) and cryptochlorogenic acid (CCA). Each type of CA isomers showed slightly different half maximal effective (EC50) and maximal effective (ECmax) concentrations, and their mixtures synergistically enhanced HCEC migration. Thus, corneal abrasion wound recovery after UPM exposure improved after PJE treatment, and the active PJE components were identified, providing an important basis to develop therapeutics for ocular surface damage using PJE.
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Affiliation(s)
- Wan Seok Kang
- Central R&D Center, B&Tech Co., Ltd., Gwangju 61239, Korea; (W.S.K.); (H.C.); (K.H.L.); (E.K.); (K.J.K.); (J.S.K.)
| | - Hakjoon Choi
- Central R&D Center, B&Tech Co., Ltd., Gwangju 61239, Korea; (W.S.K.); (H.C.); (K.H.L.); (E.K.); (K.J.K.); (J.S.K.)
| | - Ki Hoon Lee
- Central R&D Center, B&Tech Co., Ltd., Gwangju 61239, Korea; (W.S.K.); (H.C.); (K.H.L.); (E.K.); (K.J.K.); (J.S.K.)
| | - Eun Kim
- Central R&D Center, B&Tech Co., Ltd., Gwangju 61239, Korea; (W.S.K.); (H.C.); (K.H.L.); (E.K.); (K.J.K.); (J.S.K.)
| | - Kyeong Jo Kim
- Central R&D Center, B&Tech Co., Ltd., Gwangju 61239, Korea; (W.S.K.); (H.C.); (K.H.L.); (E.K.); (K.J.K.); (J.S.K.)
| | - Jin Seok Kim
- Central R&D Center, B&Tech Co., Ltd., Gwangju 61239, Korea; (W.S.K.); (H.C.); (K.H.L.); (E.K.); (K.J.K.); (J.S.K.)
| | - Chang-Su Na
- College of Korean Medicine, Dongshin University, Naju-si 58245, Korea;
| | - Sunoh Kim
- Central R&D Center, B&Tech Co., Ltd., Gwangju 61239, Korea; (W.S.K.); (H.C.); (K.H.L.); (E.K.); (K.J.K.); (J.S.K.)
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25
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Wang Y, Fu H, Lin Y. Alginate/Gelatin Sponges Composited with ZnO Sponge Effective Extensibility and Compressibility as a Wound Dressing for the Care of Fracture Surgery. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We designed and synthesized highly porous alginate and gelatin hydrogels with zinc oxide nanoparticles (AGZNPs) as dressings using sol–gel methods. The presence of functional groups and the surface characteristics of the as-synthesised dressings were analyzed via Fourier transforminfrared
(FT-IR) spectroscopy, while their morphology was studied via scanning electron microscopy (SEM). Additionally, the mechanical, inflammatory, and antibacterial properties and biocompatibility of the AGZNPs were evaluated to determine the efficiency of these bandages for wound healing applications.
The AGZNPs demonstrated enhanced inflammatory and antibacterial properties. The biocompatibility of the nanocomposites was investigated in noncancerous NIH3T3 human fibroblasts. Furthermore, in-vivo examinations showed that the composition of the synthesized AGZNPs enhanced wound healing
and promoted rapid cell construction and growth. Therefore, the AGZNP strategy promotes the future application of these nanoformulation hydrogels for wound bandaging in fracture surgeries.
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Affiliation(s)
- Yumei Wang
- Department of Orthopaedics Trauma, South Hospital of the First People’s Hospital Affiliated to Shanghai Jiaotong University, 201600, China
| | - Huichao Fu
- Department of Orthopaedics Trauma, South Hospital of the First People’s Hospital Affiliated to Shanghai Jiaotong University, 201600, China
| | - Ying Lin
- Department of Orthopaedics Trauma, South Hospital of the First People’s Hospital Affiliated to Shanghai Jiaotong University, 201600, China
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26
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Zhang Y, Dou S, Qi X, Zhang Z, Qiao Y, Wang Y, Xie J, Jiang H, Zhang B, Zhou Q, Wang Q, Xie L. Transcriptional Network Analysis Reveals the Role of miR-223-5p During Diabetic Corneal Epithelial Regeneration. Front Mol Biosci 2021; 8:737472. [PMID: 34513931 PMCID: PMC8427436 DOI: 10.3389/fmolb.2021.737472] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 08/10/2021] [Indexed: 01/10/2023] Open
Abstract
Diabetes mellitus (DM) is a complex metabolic disorder. Long-term hyperglycemia may induce diabetic keratopathy (DK), which is mainly characterized by delayed corneal epithelial regeneration. MicroRNAs (miRNAs) have been reported to play regulatory roles during tissue regeneration. However, the molecular mechanism by which miRNAs influence epithelial regeneration in DK is largely unknown. In this study, we performed miRNA and mRNA sequencing of regenerative corneal epithelium tissue from streptozotocin-induced type 1 diabetic (T1DM) and wild-type mice to screen for differentially expressed miRNAs and mRNAs. Based on regulatory network analysis, miR-223-5p was selected for subsequent experiments and Hpgds was then identified as a direct target gene. MiR-223-5p downregulation significantly promoted diabetic corneal epithelial wound healing and nerve regeneration. However, the beneficial effects of miR-223-5p inhibition were abolished by an Hpgds inhibitor. Furthermore, mechanistic studies demonstrated that miR-223-5p suppression ameliorated inflammation and enhanced cell proliferation signaling in DK. Taken together, our findings revealed that the regulatory role of miR-223-5p in diabetic corneal epithelial and nerve regeneration by mediating inflammatory processes and cell proliferation signaling. And silencing miR-223-5p may contribute to the development of potential therapeutic strategies for DK.
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Affiliation(s)
- Yuan Zhang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, China.,Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Eye Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Shengqian Dou
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, China.,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China
| | - Xia Qi
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, China.,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China
| | - Zhenzhen Zhang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, China.,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China.,Medical College, Qingdao University, Qingdao, China
| | - Yujie Qiao
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, China.,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China
| | - Yani Wang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, China.,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China.,Medical College, Qingdao University, Qingdao, China
| | - Jin Xie
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, China.,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China
| | - Hui Jiang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, China.,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China
| | - Bin Zhang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, China.,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China
| | - Qingjun Zhou
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, China.,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China
| | - Qun Wang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, China.,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China
| | - Lixin Xie
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, China.,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China
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27
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Zhang J, Xu J, Lim J, Nolan JK, Lee H, Lee CH. Wearable Glucose Monitoring and Implantable Drug Delivery Systems for Diabetes Management. Adv Healthc Mater 2021; 10:e2100194. [PMID: 33930258 DOI: 10.1002/adhm.202100194] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/12/2021] [Indexed: 12/11/2022]
Abstract
The global cost of diabetes care exceeds $1 trillion each year with more than $327 billion being spent in the United States alone. Despite some of the advances in diabetes care including continuous glucose monitoring systems and insulin pumps, the technology associated with managing diabetes has largely remained unchanged over the past several decades. With the rise of wearable electronics and novel functional materials, the field is well-poised for the next generation of closed-loop diabetes care. Wearable glucose sensors implanted within diverse platforms including skin or on-tooth tattoos, skin-mounted patches, eyeglasses, contact lenses, fabrics, mouthguards, and pacifiers have enabled noninvasive, unobtrusive, and real-time analysis of glucose excursions in ambulatory care settings. These wearable glucose sensors can be integrated with implantable drug delivery systems, including an insulin pump, glucose responsive insulin release implant, and islets transplantation, to form self-regulating closed-loop systems. This review article encompasses the emerging trends and latest innovations of wearable glucose monitoring and implantable insulin delivery technologies for diabetes management with a focus on their advanced materials and construction. Perspectives on the current unmet challenges of these strategies are also discussed to motivate future technological development toward improved patient care in diabetes management.
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Affiliation(s)
- Jinyuan Zhang
- Weldon School of Biomedical Engineering Purdue University West Lafayette IN 47907 USA
| | - Jian Xu
- Weldon School of Biomedical Engineering Purdue University West Lafayette IN 47907 USA
| | - Jongcheon Lim
- Weldon School of Biomedical Engineering Purdue University West Lafayette IN 47907 USA
| | - James K. Nolan
- Weldon School of Biomedical Engineering Purdue University West Lafayette IN 47907 USA
| | - Hyowon Lee
- Weldon School of Biomedical Engineering Purdue University West Lafayette IN 47907 USA
| | - Chi Hwan Lee
- Weldon School of Biomedical Engineering Purdue University West Lafayette IN 47907 USA
- School of Mechanical Engineering School of Materials Engineering Purdue University West Lafayette IN 47907 USA
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28
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Challenges and strategies for the delivery of biologics to the cornea. J Control Release 2021; 333:560-578. [PMID: 33857565 DOI: 10.1016/j.jconrel.2021.04.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 04/05/2021] [Accepted: 04/10/2021] [Indexed: 02/07/2023]
Abstract
Biologics, like peptides, proteins and nucleic acids, have proven to be promising drugs for the treatment of numerous diseases. However, besides the off label use of the monoclonal antibody bevacizumab for the treatment of corneal neovascularization, to date no other biologics for corneal diseases have reached the market. Indeed, delivering biologics in the eye remains a challenge, especially at the level of the cornea. While it appears to be a rather accessible tissue for the administration of drugs, the cornea in fact presents several anatomical barriers to delivery. In addition, also intracellular delivery barriers need to be overcome to achieve a promising therapeutic outcome with biologics. This review outlines efforts that have been reported to successfully deliver biologics into the cornea. Biochemical and physical methods for achieving delivery of biologics in the cornea are discussed, with a critical view on their efficacy in overcoming corneal barriers.
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29
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Petrillo F, Trotta MC, Bucolo C, Hermenean A, Petrillo A, Maisto R, Pieretti G, Pietropaolo M, Ferraraccio F, Gagliano C, Galdiero M, D'Amico M. Resolvin D1 attenuates the inflammatory process in mouse model of LPS-induced keratitis. J Cell Mol Med 2020; 24:12298-12307. [PMID: 33058526 PMCID: PMC7686975 DOI: 10.1111/jcmm.15633] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 05/20/2020] [Accepted: 05/29/2020] [Indexed: 01/29/2023] Open
Abstract
The aim of this study was to investigate the effects of the lipid mediator Resolvin D1 in experimental keratitis. C57BL/6J mice were injected with lipopolysaccharide (2 µg/eye), and after 24 hours, the corneal damage was assessed. Clinical score was quantified, and corneal inflammatory biomarkers were detected by immunohistochemistry. A robust accumulation of sub‐epithelial macrophages and polymorphonuclear leucocytes, chemokine (C‐X‐C motif) ligand 1 (also known as keratinocyte‐derived chemokine), interleukin‐10 and promoters of apoptosis was also observed in lipopolysaccharide‐treated mice. Formyl peptide receptor 2 corneal expression was also assessed. The corneal stroma treated with lipopolysaccharide was characterized by presence of macrophages of M1‐like subtype and immature fibroblastic cells, marked with Ki67, not fully differentiated in fibroblasts. Indeed, the staining of the cornea with anti‐vimentin antibodies, a marker of differentiated myofibroblasts, was very faint. Resolvin D1 attenuated all the inflammatory parameters assessed in the present study, except for IL‐10. In conclusion, the data presented here seem to be consistent with the hypothesis that Resolvin D1 protected the cornea from the lipopolysaccharide‐induced keratitis by acting on several inflammatory components of this damage, pivoted by Formyl peptide receptor 2 (FPR2) activation and macrophages‐leucocytes activity.
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Affiliation(s)
| | - Maria Consiglia Trotta
- Department of Experimental Medicine, University of Campania 'L.Vanvitelli', Naples, Italy
| | - Claudio Bucolo
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy
| | - Anca Hermenean
- Institute of Life Science, Vasile Goldis Western University, Arad, Romania
| | - Arianna Petrillo
- Department of Experimental Medicine, University of Campania 'L.Vanvitelli', Naples, Italy
| | - Rosa Maisto
- Department of Experimental Medicine, University of Campania 'L.Vanvitelli', Naples, Italy
| | - Gorizio Pieretti
- Multidisciplinary Department of Surgical and Dental Specialties, University of Campania'L. Vanvitelli', Naples, Italy
| | - Michela Pietropaolo
- General Directorate of the University Polyclinic 'L. Vanvitelli', Naples, Italy
| | - Franca Ferraraccio
- Department of Clinical, Public and Preventive Medicine, University of Campania 'L. Vanvitelli', Naples, Italy
| | - Caterina Gagliano
- Eye Clinic, University of Catania and Santa Marta Hospital, Catania, Italy
| | - Marilena Galdiero
- Department of Experimental Medicine, University of Campania 'L.Vanvitelli', Naples, Italy
| | - Michele D'Amico
- Department of Experimental Medicine, University of Campania 'L.Vanvitelli', Naples, Italy
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30
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Zhang Y, Jiang H, Dou S, Zhang B, Qi X, Li J, Zhou Q, Li W, Chen C, Wang Q, Xie L. Comprehensive analysis of differentially expressed microRNAs and mRNAs involved in diabetic corneal neuropathy. Life Sci 2020; 261:118456. [PMID: 32956661 DOI: 10.1016/j.lfs.2020.118456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/08/2020] [Accepted: 09/14/2020] [Indexed: 11/26/2022]
Abstract
AIMS Corneal nerve fibers are derived from the ophthalmic division of the trigeminal ganglion (TG). Here, by sequencing of microRNAs (miRNAs) and messenger RNAs (mRNAs) from diabetic and normal TG tissues, we aimed to uncover potential miRNAs, mRNAs, and the network of their interactions involved in the pathogenesis of diabetic corneal neuropathy. MAIN METHODS We performed RNA sequencing to systematically screen out differentially expressed miRNAs and mRNAs in TG tissues from diabetic and normal mice. Functional enrichment analyses were performed to illustrate the biological functions of differentially expressed mRNAs (DEmRNAs). Following this, miRNA-mRNA regulatory networks were built by means of bioinformatics methods to suggest regulatory role for miRNAs in the pathogenesis of diabetic corneal neuropathy. Finally, the credibility of the sequencing-based results was validated using qRT-PCR. KEY FINDINGS Sequencing analyses disclosed that 68 miRNAs and 114 mRNAs were differentially expressed in diabetic TG tissues compared with normal TG samples. The functional analyses showed that DEmRNAs participated in diabetes-related biological processes. After applying an optimized approach to predict miRNA-mRNA pairs, a miRNA-mRNA interacting network was inferred. Subsequently, the expression and correlation of miR-350-5p and Mup20, miR-592-5p and Angptl7 as well as miR-351-5p and Elovl6 were preliminarily validated. SIGNIFICANCE Our study provides a systematic characterization of miRNA and mRNA expression in the TG during diabetic corneal neuropathy and will contribute to the development of clinical diagnostic and therapeutic strategies for diabetic corneal neuropathy.
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Affiliation(s)
- Yuan Zhang
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan 430060, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao 266071, China
| | - Hui Jiang
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao 266071, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao 266071, China
| | - Shengqian Dou
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao 266071, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao 266071, China
| | - Bin Zhang
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao 266071, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao 266071, China
| | - Xia Qi
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao 266071, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao 266071, China
| | - Jing Li
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao 266071, China
| | - Qingjun Zhou
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao 266071, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao 266071, China
| | - Weina Li
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan 430060, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao 266071, China
| | - Chen Chen
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao 266071, China
| | - Qun Wang
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao 266071, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao 266071, China.
| | - Lixin Xie
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao 266071, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao 266071, China.
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Priyadarsini S, Whelchel A, Nicholas S, Sharif R, Riaz K, Karamichos D. Diabetic keratopathy: Insights and challenges. Surv Ophthalmol 2020; 65:513-529. [PMID: 32092364 PMCID: PMC8116932 DOI: 10.1016/j.survophthal.2020.02.005] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 02/10/2020] [Accepted: 02/11/2020] [Indexed: 12/11/2022]
Abstract
Ocular complications from diabetes mellitus are common. Diabetic keratopathy, the most frequent clinical condition affecting the human cornea, is a potentially sight-threatening condition caused mostly by epithelial disturbances that are of clinical and research attention because of their severity. Diabetic keratopathy exhibits several clinical manifestations, including persistent corneal epithelial erosion, superficial punctate keratopathy, delayed epithelial regeneration, and decreased corneal sensitivity, that may lead to compromised visual acuity or permanent vision loss. The limited amount of clinical studies makes it difficult to fully understand the pathobiology of diabetic keratopathy. Effective therapeutic approaches are elusive. We summarize the clinical manifestations of diabetic keratopathy and discuss available treatments and up-to-date research studies in an attempt to provide a thorough overview of the disorder.
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Affiliation(s)
- S Priyadarsini
- Department of Ophthalmology, Dean McGee Eye Institute, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - A Whelchel
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - S Nicholas
- Department of Ophthalmology, Dean McGee Eye Institute, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - R Sharif
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - K Riaz
- Department of Ophthalmology, Dean McGee Eye Institute, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - D Karamichos
- Department of Ophthalmology, Dean McGee Eye Institute, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA; Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA.
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Li W, Wang X, Cheng J, Li J, Wang Q, Zhou Q, Li H, Xue J, Zhang Y, Yang L, Xie L. Leucine-rich α-2-glycoprotein-1 promotes diabetic corneal epithelial wound healing and nerve regeneration via regulation of matrix metalloproteinases. Exp Eye Res 2020; 196:108060. [DOI: 10.1016/j.exer.2020.108060] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 04/23/2020] [Accepted: 04/28/2020] [Indexed: 12/17/2022]
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33
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Perioperative Management of Diabetic Macular Edema. Int Ophthalmol Clin 2020; 60:41-50. [PMID: 32576722 DOI: 10.1097/iio.0000000000000320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Wang X, Li W, Zhou Q, Li J, Wang X, Zhang J, Li D, Qi X, Liu T, Zhao X, Li S, Yang L, Xie L. MANF Promotes Diabetic Corneal Epithelial Wound Healing and Nerve Regeneration by Attenuating Hyperglycemia-Induced Endoplasmic Reticulum Stress. Diabetes 2020; 69:1264-1278. [PMID: 32312869 DOI: 10.2337/db19-0835] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 03/15/2020] [Indexed: 11/13/2022]
Abstract
Mesencephalic astrocyte-derived neurotrophic factor (MANF) is a neurotrophic factor widely expressed in mammalian tissues, and it exerts critical protective effects on neurons and other cell types in various disease models, such as those for diabetes. However, to date, the expression and roles of MANF in the cornea, with or without diabetic keratopathy (DK), remain unclear. Here, we demonstrate that MANF is abundantly expressed in normal corneal epithelial cells; however, MANF expression was significantly reduced in both unwounded and wounded corneal epithelium in streptozotocin-induced type 1 diabetic C57BL/6 mice. Recombinant human MANF significantly promoted normal and diabetic corneal epithelial wound healing and nerve regeneration. Furthermore, MANF inhibited hyperglycemia-induced endoplasmic reticulum (ER) stress and ER stress-mediated apoptosis. Attenuation of ER stress with 4-phenylbutyric acid (4-PBA) also ameliorated corneal epithelial closure and nerve regeneration. However, the beneficial effects of MANF and 4-PBA were abolished by an Akt inhibitor and Akt-specific small interfering RNA (siRNA). Finally, we reveal that the subconjunctival injection of MANF-specific siRNA prevents corneal epithelial wound healing and nerve regeneration. Our results provide important evidence that hyperglycemia-suppressed MANF expression may contribute to delayed corneal epithelial wound healing and impaired nerve regeneration by increasing ER stress, and MANF may be a useful therapeutic modality for treating DK.
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Affiliation(s)
- Xiaochuan Wang
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, Shandong, China
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, Shandong, China
| | - Weina Li
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, Shandong, China
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Qingjun Zhou
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, Shandong, China
| | - Jing Li
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, Shandong, China
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, Shandong, China
| | - Xiaolei Wang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, Shandong, China
| | - Jing Zhang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, Shandong, China
| | - Dewei Li
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, Shandong, China
| | - Xia Qi
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, Shandong, China
| | - Ting Liu
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, Shandong, China
| | - Xiaowen Zhao
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, Shandong, China
| | - Suxia Li
- Shandong Eye Hospital, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Lingling Yang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, Shandong, China
| | - Lixin Xie
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Qingdao, Shandong, China
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