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Selective Activation of the Wnt-Signaling Pathway as a Novel Therapy for the Treatment of Diabetic Retinopathy and Other Retinal Vascular Diseases. Pharmaceutics 2022; 14:pharmaceutics14112476. [PMID: 36432666 PMCID: PMC9697247 DOI: 10.3390/pharmaceutics14112476] [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: 09/28/2022] [Revised: 11/07/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022] Open
Abstract
Retinal ischemia, often associated with various disorders such as diabetic retinopathy (DR), retinal vein occlusion, glaucoma, optic neuropathies, stroke, and other retinopathies, is a major cause of visual impairment and blindness worldwide. As proper blood supply to the retina is critical to maintain its high metabolic demand, any impediment to blood flow can lead to a decrease in oxygen supply, resulting in retinal ischemia. In the pathogenesis of DR, including diabetic macular edema (DME), elevated blood glucose leads to blood-retina barrier (BRB) disruptions, vascular leakage, and capillary occlusion and dropouts, causing insufficient delivery of oxygen to the retina, and ultimately resulting in visual impairment. Other potential causes of DR include neuronal dysfunction in the absence of vascular defect, genetic, and environmental factors. The exact disease progression remains unclear and varies from patient to patient. Vascular leakage leading to edema clearly links to visual impairment and remains an important target for therapy. Despite recent advances in the treatment of DME and DR with anti-VEGFs, effective therapies with new mechanisms of action to address current treatment limitations regarding vessel regeneration and reperfusion of ischemic retinal areas are still needed. The Wnt signaling pathway plays a critical role in proper vascular development and maintenance in the retina, and thus provides a novel therapeutic approach for the treatment of diabetic and other retinopathies. In this review, we summarize the potential of this pathway to address treatment gaps with current therapies, its promise as a novel and potentially disease modifying therapy for patients with DR and opportunities in other retinal vascular diseases.
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Sharma S, Behl T, Sehgal A, Singh S, Sharma N, Bhatia S, Al-Harassi A, Bungau S, Mostafavi E. Possible Role of Wnt Signaling Pathway in Diabetic Retinopathy. Curr Drug Targets 2022; 23:1372-1380. [PMID: 35232336 DOI: 10.2174/1389450123666220301110140] [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: 08/10/2021] [Revised: 12/08/2021] [Accepted: 12/30/2021] [Indexed: 01/25/2023]
Abstract
The core of impaired vision in working people suffering from insulin-dependent and noninsulin- dependent diabetes mellitus is diabetic retinopathy (DR). The Wnt Protein Ligands family influences various processes; this ensures the cells are able to interact and co-ordinate various mobile functions, including cell growth, division, survival, apoptosis, migration, and cell destiny. The extracellular Wnt signal activates other signals. It is seen that Wnt pathways play an important role in inflammation, oxidative stress, and angiogenesis. It has been illustrated that the canonically preserved Wnt signaling system has a vital role in the homeostasis of adulthood. Developmental disorders in each of these stages will lead to serious eye problems and eventually blindness. There is, therefore, a need to specifically organize and regulate the growth of ocular tissues. In tissue specification and polarities, axonal exhaust, and maintenance of cells, especially in the central nervous system, Wnt/frizzled pathways play an important role. Thus, Wnt route antagonists may act as have been possible therapeutic options in DR by inhibiting aberrant Wnt signals. Elaborative and continued research in this area will help in the advancement of current knowledge in the field of DR, and eventually, this can lead to the development of new therapeutic approaches.
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Affiliation(s)
- Sheetu Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Tapan Behl
- School of Health Sciences and Technology, University of Petroleum and Energy Studies, Bidholi, Dehradun, India
| | - Aayush Sehgal
- GHG Khalsa College of Pharmacy, Gurusar Sadhar, Ludhiana, Punjab, India
| | - Sukhbir Singh
- Department of Pharmaceutics, MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, Haryana, India
| | - Neelam Sharma
- Department of Pharmaceutics, MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, Haryana, India
| | - Saurabh Bhatia
- Natural & Medical Sciences Research Centre, University of Nizwa, Nizwa, Oman
| | - Ahmed Al-Harassi
- Natural & Medical Sciences Research Centre, University of Nizwa, Nizwa, Oman
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania
| | - Ebrahim Mostafavi
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States.,Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
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Hua Z, Han Y, Liu K, Yang H, Zhou C, Chen F, Nie S, Li M, Yu Q, Wei Y, Wu CCN, Wang X. Antitumor effect and mechanism of FZD7 polypeptide vaccine. Front Oncol 2022; 12:925495. [PMID: 36276155 PMCID: PMC9579692 DOI: 10.3389/fonc.2022.925495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
The resistant cells that proliferate after radiotherapy and chemotherapy are primarily tumor stem cells with high stem marker expression, and their presence is the primary cause of tumor dispersion. The Wnt signaling receptor Frizzled family receptor 7 (FZD7) is linked to the maintenance of stem cell features as well as cancer progression. Frizzled-7 (FZD7), a key receptor for Wnt/-catenin signaling, is overexpressed in TNBC, suggesting that it could be a viable target for cancer therapy. We employed bioinformatics to find the best-scoring peptide, chemically synthesized FZD7 epitope antigen, and binding toll-like receptor 7 agonists (T7). Under GMP conditions, peptides for vaccines were produced and purified (>95%). In vivo and vitro tests were used to assess tumor cell inhibition. In vitro, the FZD7-T7 vaccination can boost the maturity of BMDC cells considerably. In mice, the FZD7 - T7 vaccine elicited the greatest immunological response. Significant tumor development inhibition was seen in BALB/c mice treated with FZD7 - T7 in prevention experiments (P < 0.01). Multiple cytokines that promote cellular immune responses, such as interferon (IFN)-γ (P < 0.05), interleukin (IL)-12 (P < 0.05), and IL-2 (P < 0.01), were shown to be considerably elevated in mice inoculated with FZD7- T7. Furthermore, we evaluated safety concerns in terms of vaccine composition to aid in the creation of successful next-generation vaccines. In conclusion, the FZD7-T7 vaccine can activate the immune response in vivo and in vitro, and play a role in tumor suppression. Our findings reveal a unique tumor-suppressive role for the FZD7 peptide in TNBC.
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Affiliation(s)
- Zhongke Hua
- International Cancer Center, Shenzhen Key Lab of Synthetic Biology, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, China
| | - Yu Han
- International Cancer Center, Shenzhen Key Lab of Synthetic Biology, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, China
| | - Kan Liu
- International Cancer Center, Shenzhen Key Lab of Synthetic Biology, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, China
| | - Hua Yang
- International Cancer Center, Shenzhen Key Lab of Synthetic Biology, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, China
| | - Cai Zhou
- International Cancer Center, Shenzhen Key Lab of Synthetic Biology, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, China
| | - Fengyi Chen
- International Cancer Center, Shenzhen Key Lab of Synthetic Biology, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, China
| | - Shenglan Nie
- International Cancer Center, Shenzhen Key Lab of Synthetic Biology, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, China
| | - Mengqing Li
- International Cancer Center, Shenzhen Key Lab of Synthetic Biology, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, China
| | - Qinyao Yu
- International Cancer Center, Shenzhen Key Lab of Synthetic Biology, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, China
| | - Yunpeng Wei
- International Cancer Center, Shenzhen Key Lab of Synthetic Biology, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, China
| | - Christina C. N. Wu
- Moores Cancer Center, University of California, San Diego, La Jolla, CA, United States
- *Correspondence: Xiaomei Wang, ; Christina C. N. Wu,
| | - Xiaomei Wang
- International Cancer Center, Shenzhen Key Lab of Synthetic Biology, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, China
- *Correspondence: Xiaomei Wang, ; Christina C. N. Wu,
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Zheng Y, Qi B, Gao W, Qi Z, Liu Y, Wang Y, Feng J, Cheng X, Luo Z, Li T. Macrophages-Related Genes Biomarkers in the Deterioration of Atherosclerosis. Front Cardiovasc Med 2022; 9:890321. [PMID: 35845072 PMCID: PMC9282674 DOI: 10.3389/fcvm.2022.890321] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 05/26/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundThe macrophages are involved in all stages of cardiovascular diseases, demonstrating the correlation between inflammation, atherosclerosis, and myocardial infarction (MI). Here, we aim to investigate macrophages-related genes in the deterioration of atherosclerosis.MethodsGSE41571 was downloaded and the abundance of immune cells was estimated by utilizing the xCell. By utilizing the limma test and correlation analysis, differentially expressed macrophages-related genes (DEMRGs) were documented. The functional pathways and the protein–protein interaction (PPI) network were analyzed and the hub DEMRGs were obtained. The hub DEMRGs and their interactions were analyzed using NetworkAnalyst 3.0 and for validation, the expressions of hub DEMRGs were analyzed using the GSE135055 and GSE116250 datasets as well as atherosclerosis and MI mice model.ResultsA total of 509 differentially expressed genes (DEGs) were correlated with the abundance of macrophages and were identified as DEMRGs (Pearson correlation coefficients (PCC) > 0.6), which were mainly enriched in extracellular structure organization, lysosomal membrane, MHC protein complex binding, and so on. After screening out, 28 hub DEMRGs were obtained with degrees ≥20, including GNAI1 (degree = 113), MRPS2 (degree = 56), HCK (degree = 45), SOCS3 (degree = 40), NET1 (degree = 28), and so on. After validating using Gene Expression Omnibus (GEO) datasets and the atherosclerosis and MI mice model, eight proteins were validated using ApoE-/- and C57 mice. The expression levels of proteins, including SYNJ2, NET1, FZD7, LCP2, HCK, GNB2, and PPP4C were positively correlated to left ventricular ejection fraction (LVEF), while that of EIF4EBP1 was negatively correlated to LVEF.ConclusionThe screened hub DEMRGs, SYNJ2, NET1, FZD7, LCP2, HCK, GNB2, EIF4EBP1, and PPP4C, may be therapeutic targets for treatment and prediction in the patients with plaque progression and MI recurrent events. The kit of the eight hub DEMRGs may test plaque progression and MI recurrent events and help in the diagnosis and treatment of MI-induced heart failure (HF), thus decreasing mortality and morbidity.
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Affiliation(s)
- Yue Zheng
- School of Medicine, Nankai University, Tianjin, China
- Department of Heart Center, The Third Central Hospital of Tianjin, Tianjin, China
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
| | - Bingcai Qi
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Wenqing Gao
- Department of Heart Center, The Third Central Hospital of Tianjin, Tianjin, China
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Zhenchang Qi
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Yanwu Liu
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Yuchao Wang
- School of Medicine, Nankai University, Tianjin, China
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Jianyu Feng
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Xian Cheng
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Zhiqiang Luo
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
- Zhiqiang Luo
| | - Tong Li
- School of Medicine, Nankai University, Tianjin, China
- Department of Heart Center, The Third Central Hospital of Tianjin, Tianjin, China
- Nankai University Affiliated Third Center Hospital, Tianjin, China
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
- *Correspondence: Tong Li
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Tan W, Xu H, Chen B, Duan T, Liu K, Zou J. Wnt inhibitory 1 ameliorates neovascularization and attenuates photoreceptor injury in an oxygen-induced retinopathy mouse model. Biofactors 2022; 48:683-698. [PMID: 35080047 DOI: 10.1002/biof.1824] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 12/23/2021] [Indexed: 01/04/2023]
Abstract
Retinal neovascularization (RNV) associated diseases typically exhibit pathological neovascularization and neurodegeneration. Wnt inhibitor factor 1 (WIF1) is a secreted Wnt antagonist that regulates angiogenesis. However, the significance of WIF1 in RNV associated disease has not been explicitly tested. In our study, we found that the WIF1 expressions were strongly downregulated in the vitreous of proliferative diabetic retinopathy (PDR) and retinopathy of prematurity (ROP). Similarly, retinal WIF1 expression was significantly downregulated in OIR mice, relative to normal mice at P17. After injection of WIF1 overexpression lentivirus into the vitreous of OIR mice, overexpressing WIF1 in OIR mice vitreous strongly reduced avascular areas and neovascular tufts, increased vessel branches, raised a-, b-waves and oscillatory potentials amplitudes on ERG, increased retinal thickness and the number of synapses in retina, normalized the Golgi, mitochondria, and outer segments of photoreceptors. Furthermore, overexpression WIF1 suppressed expressions of β-catenin, vascular endothelial growth factor (VEGF), p-AKT and p-ERK, reduced retinal reactive oxygen species (ROS) and 4-HNE levels, improved autophagic flux, and mitigated apoptosis. In summary, WIF1 plays a key role in alleviating angiogenesis and in improving visual function in OIR mice by suppressing the Wnt/β-catenin-VEGF signaling pathway and ROS levels. WIF1 is an excellent candidate for targeted therapy against RNV associated diseases.
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Affiliation(s)
- Wei Tan
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
- Department of Ophthalmology, Central Hospital of Xiangtan, Xiangtan, Hunan Province, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Huizhuo Xu
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Bolin Chen
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
| | - Tianqi Duan
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
| | - Kangcheng Liu
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
| | - Jing Zou
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
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Pöstyéni E, Ganczer A, Kovács-Valasek A, Gabriel R. Relevance of Peptide Homeostasis in Metabolic Retinal Degenerative Disorders: Curative Potential in Genetically Modified Mice. Front Pharmacol 2022; 12:808315. [PMID: 35095518 PMCID: PMC8793341 DOI: 10.3389/fphar.2021.808315] [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: 11/03/2021] [Accepted: 12/20/2021] [Indexed: 11/19/2022] Open
Abstract
The mammalian retina contains approximately 30 neuropeptides that are synthetized by different neuronal cell populations, glia, and the pigmented epithelium. The presence of these neuropeptides leaves a mark on normal retinal molecular processes and physiology, and they are also crucial in fighting various pathologies (e.g., diabetic retinopathy, ischemia, age-related pathologies, glaucoma) because of their protective abilities. Retinal pathologies of different origin (metabolic, genetic) are extensively investigated by genetically manipulated in vivo mouse models that help us gain a better understanding of the molecular background of these pathomechanisms. These models offer opportunities to manipulate gene expression in different cell types to help reveal their roles in the preservation of retinal health or identify malfunction during diseases. In order to assess the current status of transgenic technologies available, we have conducted a literature survey focused on retinal disorders of metabolic origin, zooming in on the role of retinal neuropeptides in diabetic retinopathy and ischemia. First, we identified those neuropeptides that are most relevant to retinal pathologies in humans and the two clinically most relevant models, mice and rats. Then we continued our analysis with metabolic disorders, examining neuropeptide-related pathways leading to systemic or cellular damage and rescue. Last but not least, we reviewed the available literature on genetically modified mouse strains to understand how the manipulation of a single element of any given pathway (e.g., signal molecules, receptors, intracellular signaling pathways) could lead either to the worsening of disease conditions or, more frequently, to substantial improvements in retinal health. Most attention was given to studies which reported successful intervention against specific disorders. For these experiments, a detailed evaluation will be given and the possible role of converging intracellular pathways will be discussed. Using these converging intracellular pathways, curative effects of peptides could potentially be utilized in fighting metabolic retinal disorders.
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Affiliation(s)
- Etelka Pöstyéni
- Department of Experimental Zoology and Neurobiology, University of Pécs, Pécs, Hungary
| | - Alma Ganczer
- Department of Experimental Zoology and Neurobiology, University of Pécs, Pécs, Hungary.,János Szentágothai Research Centre, University of Pécs, Pécs, Hungary
| | - Andrea Kovács-Valasek
- Department of Experimental Zoology and Neurobiology, University of Pécs, Pécs, Hungary
| | - Robert Gabriel
- Department of Experimental Zoology and Neurobiology, University of Pécs, Pécs, Hungary.,János Szentágothai Research Centre, University of Pécs, Pécs, Hungary
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Yu Y, Xue S, Chen K, Le Y, Zhu R, Wang S, Liu S, Cheng X, Guan H, Wang JM, Chen H. The G-protein-coupled chemoattractant receptor Fpr2 exacerbates neuroglial dysfunction and angiogenesis in diabetic retinopathy. FASEB Bioadv 2020; 2:613-623. [PMID: 33089077 PMCID: PMC7566047 DOI: 10.1096/fba.2020-00034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 08/02/2020] [Accepted: 08/04/2020] [Indexed: 01/22/2023] Open
Abstract
Diabetic retinopathy (DR) as a retinal neovascularization‐related disease is one of the leading causes of irreversible blindness in patients. The goal of this study is to determine the role of a G‐protein‐coupled chemoattractant receptor (GPCR) FPR2 (mouse Fpr2) in the progression of DR, in order to identify novel therapeutic targets. We report that Fpr2 was markedly upregulated in mouse diabetic retinas, especially in retinal vascular endothelial cells, in associated with increased number of activated microglia and Müller glial cells. In contrast, in the retina of diabetic Fpr2−/− mice, the activation of vascular endothelial cells and glia was attenuated with reduced production of proinflammatory cytokines. Fpr2 deficiency also prevented the formation of acellular capillary during diabetic progression. Furthermore, in oxygen‐induced retinopathy (OIR) mice, the absence of Fpr2 was associated with diminished neovasculature formation and pathological vaso‐obliteration region in the retina. These results highlight the importance of Fpr2 in exacerbating the progression of neuroglial degeneration and angiogenesis in DR and its potential as a therapeutic target.
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Affiliation(s)
- Ying Yu
- Eye Institute Affiliated Hospital of Nantong University Nantong China.,Cancer and Inflammation Program Center for Cancer Research National Cancer Institute at Frederick Frederick MD USA
| | - Shengding Xue
- Eye Institute Affiliated Hospital of Nantong University Nantong China
| | - Keqiang Chen
- Cancer and Inflammation Program Center for Cancer Research National Cancer Institute at Frederick Frederick MD USA
| | - Yingying Le
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety Shanghai Institute of Nutrition and Health Chinese Academy of Sciences Shanghai China
| | - Rongrong Zhu
- Eye Institute Affiliated Hospital of Nantong University Nantong China
| | - Shiyi Wang
- Eye Institute Affiliated Hospital of Nantong University Nantong China
| | - Shuang Liu
- Eye Institute Affiliated Hospital of Nantong University Nantong China
| | - Xinliang Cheng
- Eye Institute Affiliated Hospital of Nantong University Nantong China
| | - Huaijin Guan
- Eye Institute Affiliated Hospital of Nantong University Nantong China
| | - Ji Ming Wang
- Cancer and Inflammation Program Center for Cancer Research National Cancer Institute at Frederick Frederick MD USA
| | - Hui Chen
- Eye Institute Affiliated Hospital of Nantong University Nantong China
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Covello G, Rossello FJ, Filosi M, Gajardo F, Duchemin A, Tremonti BF, Eichenlaub M, Polo JM, Powell D, Ngai J, Allende ML, Domenici E, Ramialison M, Poggi L. Transcriptome analysis of the zebrafish atoh7-/- Mutant, lakritz, highlights Atoh7-dependent genetic networks with potential implications for human eye diseases. FASEB Bioadv 2020; 2:434-448. [PMID: 32676583 PMCID: PMC7354691 DOI: 10.1096/fba.2020-00030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/02/2020] [Accepted: 04/28/2020] [Indexed: 12/21/2022] Open
Abstract
Expression of the bHLH transcription protein Atoh7 is a crucial factor conferring competence to retinal progenitor cells for the development of retinal ganglion cells. Several studies have emerged establishing ATOH7 as a retinal disease gene. Remarkably, such studies uncovered ATOH7 variants associated with global eye defects including optic nerve hypoplasia, microphthalmia, retinal vascular disorders, and glaucoma. The complex genetic networks and cellular decisions arising downstream of atoh7 expression, and how their dysregulation cause development of such disease traits remains unknown. To begin to understand such Atoh7-dependent events in vivo, we performed transcriptome analysis of wild-type and atoh7 mutant (lakritz) zebrafish embryos at the onset of retinal ganglion cell differentiation. We investigated in silico interplays of atoh7 and other disease-related genes and pathways. By network reconstruction analysis of differentially expressed genes, we identified gene clusters enriched in retinal development, cell cycle, chromatin remodeling, stress response, and Wnt pathways. By weighted gene coexpression network, we identified coexpression modules affected by the mutation and enriched in retina development genes tightly connected to atoh7. We established the groundwork whereby Atoh7-linked cellular and molecular processes can be investigated in the dynamic multi-tissue environment of the developing normal and diseased vertebrate eye.
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Affiliation(s)
- Giuseppina Covello
- Department of Cellular, Computational and Integrative Biology ‐ CIBIOUniversity of TrentoTrentoItaly
- Present address:
Department of BiologyUniversity of PadovaPadovaItaly
| | - Fernando J. Rossello
- Australian Regenerative Medicine InstituteMonash University Clayton VICClaytonAustralia
- Present address:
University of Melbourne Centre for Cancer ResearchUniversity of MelbourneMelbourneVictoriaAustralia
| | - Michele Filosi
- Department of Cellular, Computational and Integrative Biology ‐ CIBIOUniversity of TrentoTrentoItaly
| | - Felipe Gajardo
- Center for Genome RegulationFacultad de Ciencias, SantiagoUniversidad de ChileSantiagoChile
| | | | - Beatrice F. Tremonti
- Department of Cellular, Computational and Integrative Biology ‐ CIBIOUniversity of TrentoTrentoItaly
| | - Michael Eichenlaub
- Australian Regenerative Medicine InstituteMonash University Clayton VICClaytonAustralia
| | - Jose M. Polo
- Australian Regenerative Medicine InstituteMonash University Clayton VICClaytonAustralia
- BDIMonash University Clayton VICClaytonAustralia
| | - David Powell
- Monash Bioinformatics PlatformMonash University Clayton VICClaytonAustralia
| | - John Ngai
- Department of Molecular and Cell Biology & Helen Wills Neuroscience InstituteUniversity of CaliforniaBerkeleyCAUSA
| | - Miguel L. Allende
- Center for Genome RegulationFacultad de Ciencias, SantiagoUniversidad de ChileSantiagoChile
| | - Enrico Domenici
- Department of Cellular, Computational and Integrative Biology ‐ CIBIOUniversity of TrentoTrentoItaly
- Fondazione The Microsoft Research ‐ University of Trento Centre for Computational and Systems BiologyTrentoItaly
| | - Mirana Ramialison
- Australian Regenerative Medicine InstituteMonash University Clayton VICClaytonAustralia
| | - Lucia Poggi
- Department of Cellular, Computational and Integrative Biology ‐ CIBIOUniversity of TrentoTrentoItaly
- Centre for Organismal StudyHeidelberg UniversityHeidelbergGermany
- Department of PhysiologyDevelopment and NeuroscienceUniversity of CambridgeCambridgeUnited Kingdom
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