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Feng L, Wang C, Zhang C, Zhang W, Song W. Role of epigenetic regulation in glaucoma. Biomed Pharmacother 2023; 168:115633. [PMID: 37806089 DOI: 10.1016/j.biopha.2023.115633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/23/2023] [Accepted: 10/03/2023] [Indexed: 10/10/2023] Open
Abstract
Glaucoma is the world's leading irreversible blinding eye disease. Lowering intraocular pressure is currently the only effective clinical treatment. However, there is a lack of long-acting IOP-lowering drugs, and some patients still experience retinal ganglion cell loss even with good intraocular pressure control. Currently, there is no effective method for neuroprotection and regeneration in clinical practice for glaucoma. In recent years, epigenetics has been widely researched and reported for its role in glaucoma's neuroprotection and regeneration. This article reviews the changes in histone modifications, DNA methylation, non-coding RNA, and m6A methylation in glaucoma, aiming to provide new perspectives for glaucoma management, protection of retinal ganglion cells, and axon regeneration by understanding epigenetic alterations.
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Affiliation(s)
- Lemeng Feng
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan 410008, PR China; Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China; Hunan Key Laboratory of Ophthalmology, Changsha, Hunan 410008, PR China
| | - Chao Wang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan 410008, PR China; Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China; Hunan Key Laboratory of Ophthalmology, Changsha, Hunan 410008, PR China
| | - Cheng Zhang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan 410008, PR China; Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China; Hunan Key Laboratory of Ophthalmology, Changsha, Hunan 410008, PR China
| | - Wulong Zhang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan 410008, PR China; Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China; Hunan Key Laboratory of Ophthalmology, Changsha, Hunan 410008, PR China
| | - Weitao Song
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan 410008, PR China; Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China; Hunan Key Laboratory of Ophthalmology, Changsha, Hunan 410008, PR China.
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MicroRNA: Crucial modulator in purinergic signalling involved diseases. Purinergic Signal 2023; 19:329-341. [PMID: 35106737 PMCID: PMC9984628 DOI: 10.1007/s11302-022-09840-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 01/03/2022] [Indexed: 12/13/2022] Open
Abstract
Both microRNAs (miRNAs) and purinergic signalling are widely and respectively expressed in various tissues of different organisms and play vital roles in a variety of physiological and pathological processes. Here, we reviewed the current publications contributed to the relationship of miRNAs and purinergic signalling in cardiovascular diseases, gastrointestinal diseases, neurological diseases, and ophthalmic diseases. We tried to decode the miRNAs-purinergic signalling network of purinergic signalling involved diseases. The evidence indicated that more than 30 miRNAs (miR-22, miR-30, miR-146, miR-150, miR-155, miR-187, etc.) directly or indirectly modulate P1 receptors (A1, A2A, A2B, A3), P2 receptors (P2X1, P2X3, P2X4, P2X7, P2Y2, P2Y6, P2Y12), and ecto-enzymes (CD39, CD73, ADA2); P2X7 and CD73 could be modulated by multiple miRNAs (P2X7: miR-21, miR-22, miR-30, miR-135a, miR-150, miR-186, miR-187, miR-216b; CD73: miR-141, miR-101, miR-193b, miR-340, miR-187, miR-30, miR-422a); miR-187 would be the common miRNA to modulate P2X7 and CD73.
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Sanie-Jahromi F, Mahmoudi A, Khalili MR, Nowroozzadeh MH. A Review on the Application of Stem Cell Secretome in the Protection and Regeneration of Retinal Ganglion Cells; a Clinical Prospect in the Treatment of Optic Neuropathies. Curr Eye Res 2022; 47:1463-1471. [PMID: 35876610 DOI: 10.1080/02713683.2022.2103153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
PURPOSE Retinal ganglion cells (RGCs) are one the most specialized neural tissues in the body. They transmit (and further process) chemoelectrical information originating in outer retinal layers to the central nervous system. In fact, the optic nerve is composed of RGC axons. Like other neural cells, RGCs will not completely heal after the injury, leading to irreversible vision loss from disorders such as glaucoma that primarily affect these cells. Several methods have been developed to protect or regenerate RGCs during or after the insult has occurred. This study aims to review the most recent clinical, animal and laboratory experiments designed for the regeneration of RGC that apply the stem cell-derived secretome. METHODS We extracted the studies from Web of Science (ISI), Medline (PubMed), Scopus, Embase, and Google scholar from the first record to the last report registered in 2022, using the following keywords; "secretome" OR "conditioned medium" OR "exosome" OR "extracellular vesicle" AND "stem cell" AND "RGC" OR "optic neuropathy". Any registered clinical trials related to the subject were also extracted from clinicaltrial.gov. All published original studies that express the effect of stem cell secretome on RGC cells in optic neuropathy, whether in vitro, in animal studies, or in clinical trials were included in this survey. RESULTS In this review, we provided an update on the existing reports, and a brief description of the details applied in the procedure. Compared to cell transplant, applying stem cell-derived secretome has the advantage of minimized immunogenicity yet preserving efficacy via its rich content of growth factors. CONCLUSIONS Different sources of stem cell secretomes have distinct implications in the management of RGC injury, which is the main subject of the present article.
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Affiliation(s)
- Fatemeh Sanie-Jahromi
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahmad Mahmoudi
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Khalili
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - M Hossein Nowroozzadeh
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Li H, Su Y, Wang F, Tao F. Exosomes: a new way of protecting and regenerating optic nerve after injury. Hum Cell 2022; 35:771-778. [PMID: 35258808 DOI: 10.1007/s13577-022-00688-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 02/22/2022] [Indexed: 12/29/2022]
Abstract
As an important part of the central nervous system (CNS), the optic nerve usually cannot regenerate directly after injury. Therefore, treating the injury and restoring the function of the optic nerve are a historical problem in the medical field. Due to the special anatomical position of the optic nerve, the microenvironment needed for protection and regeneration after injury is lacking. Therefore, preventing the continued loss of neurons, protecting the functional nerves, and promoting the effective protection of nerves are the main ways to solve the problem. Exosomes are nano-sized vesicles with a diameter of 30-150 nm, composed of lipid bilayers, proteins, and genetic material. They have key functions in cell-to-cell communication, immune regulation, inflammation, and regeneration. More and more shreds of evidence show that exosomes not only play an important role in systemic diseases such as cancer, cardiovascular diseases, and brain diseases; they also play a key role in ophthalmological diseases. This article reviews the role of exosomes in the protection and regeneration of the optic nerve after optic nerve injury in related experimental studies and clinical treatment methods. GRAPHICAL ABSTARCT: .
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Affiliation(s)
- Huazhang Li
- Department of Ophthalmology, The Fourth Affiliated Hospital, Harbin Medical University, Harbin, 150001, China
| | - Ying Su
- Department of Ophthalmology, The First Affiliated Hospital, Harbin Medical University, Harbin, 150001, China.
| | - Feng Wang
- Department of Ophthalmology, The Fourth Affiliated Hospital, Harbin Medical University, Harbin, 150001, China.
| | - Feng Tao
- Department of Neurology, The Hospital of Heilongjiang Province, Harbin, 150001, China.
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Mead B, Tomarev S. The role of miRNA in retinal ganglion cell health and disease. Neural Regen Res 2022; 17:516-522. [PMID: 34380881 PMCID: PMC8504366 DOI: 10.4103/1673-5374.320974] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/19/2021] [Accepted: 04/15/2021] [Indexed: 12/03/2022] Open
Abstract
miRNA are short non-coding RNA responsible for the knockdown of proteins through their targeting and silencing of complimentary mRNA sequences. The miRNA landscape of a cell thus affects the levels of its proteins and has significant consequences to its health. Deviations in this miRNA landscape have been implicated in a variety of neurodegenerative diseases and have also garnered interest as targets for treatment. Retinal ganglion cells are the sole projection neuron of the retina with their axons making up the optic nerve. They are a focus of study not only for their importance in vision and the myriad of blinding diseases characterized by their dysfunction and loss, but also as a model of other central nervous system diseases such as spinal cord injury and traumatic brain injury. This review summarizes current knowledge on the role of miRNA in retinal ganglion cell function, highlighting how perturbations can result in disease, and how modulating their abundance may provide a novel avenue of therapeutic research.
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Affiliation(s)
- Ben Mead
- School of Optometry and Vision Sciences, Cardiff University, Cardiff, UK
| | - Stanislav Tomarev
- Section of Retinal Ganglion Cell Biology, Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
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Ge Y, Zhang R, Feng Y, Lu J, Li H. Mbd2 deficiency alleviates retinal cell apoptosisvia the miR-345-5p/Atf1 axis in high glucoseinjury and streptozotocin-induced diabetic mice. MOLECULAR THERAPY. NUCLEIC ACIDS 2021; 26:1201-1214. [PMID: 34853720 PMCID: PMC8605293 DOI: 10.1016/j.omtn.2021.10.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 08/23/2021] [Accepted: 10/29/2021] [Indexed: 12/21/2022]
Abstract
DNA methylation is considered to play an important role in the development of diabetic retinopathy. Here, our goal was to investigate the precise role of methyl-CpG binding domain protein 2 (Mbd2) in the apoptosis of retinal ganglion cells (RGCs) in the early diabetic retina. Mbd2 was significantly upregulated after high glucose (HG) treatment and played a proapoptotic role in RGCs during HG-induced apoptosis. Combining ChIP and gene microarray datasets, the results showed that Mbd2 possessed potential binding sites for miR-345-5p, thereby elevating the expression levels of miR-345-5p via the enhancement of promoter demethylation. Activating transcription factor 1 (Atf1) played an anti-apoptotic role during the process of apoptosis in RGCs and acted as the target gene for miR-345-5p. Furthermore, the number of surviving RGCs in the diabetic retina was increased in Mbd2-knockout mice when compared with wild-type mice and the visual function became better accordingly. Collectively, our data demonstrated that the HG-induced overexpression of Mbd2 in the retina was partly responsible for the apoptosis of retinal neuronal cells through the miR-345-5p/Atf1 axis. Therefore, the targeting of Mbd2 might represent a novel therapeutic strategy for the treatment of neurodegeneration in the early diabetic retina.
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Affiliation(s)
- Yanni Ge
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan 410011, China
| | - Ran Zhang
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan 410011, China
| | - Yuqing Feng
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan 410011, China
| | - Jinfang Lu
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan 410011, China
| | - Huiling Li
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan 410011, China
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Xu K, Li S, Yang Q, Zhou Z, Fu M, Yang X, Hao K, Liu Y, Ji H. MicroRNA-145-5p targeting of TRIM2 mediates the apoptosis of retinal ganglion cells via the PI3K/AKT signaling pathway in glaucoma. J Gene Med 2021; 23:e3378. [PMID: 34291866 DOI: 10.1002/jgm.3378] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/07/2021] [Accepted: 07/15/2021] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND There is accumulating evidence to suggest that microRNAs (miRNAs) are associated with the progressive optic neuropathy including glaucoma. Apoptosis of retinal ganglion cells (RGCs) is a hallmark of glaucoma. The present study focused on the effects of miR-145-5p on RGC apoptosis in glaucoma. METHODS We established a glaucoma rat model by intraocular injection of N-methyl-d-aspartic acid (NMDA). RGCs were isolated from newborn rats and treated with NMDA. Hematoxylin and eosin staining was performed to detect morphological changes in the retinas of rats. The expression of miR-145-5p and tripartite motif-containing 2 (TRIM2) in RGCs was measured by RT-qPCR. The viability of RGCs was measured by MTT assay. Flow cytometry analysis and TUNEL assays were conducted to assess the apoptosis of RGCs. The interaction between miR-145-5p and TRIM2 was investigated using a luciferase reporter assay. RESULTS Rats injected with NMDA showed a thinner ganglion cell layer (GCL) and inner plexiform layer (IPL) as well as increased expression of miR-145-5p. Silencing of miR-145-5p significantly increased the GCL and IPL in the glaucoma rat model. Moreover, miR-145-5p expression was upregulated in RGCs ex vivo in response to NMDA. Silencing of miR-145-5p promoted cell viability and suppressed apoptosis in NMDA-treated RGCs. Mechanistically, miR-145-5p targeted the TRIM2 3' untranslated region to suppress its expression. TRIM2 was upregulated in NMDA-treated RGCs and protected RGCs against NMDA-induced apoptosis. Furthermore, miR-145-5p suppressed the PI3K/AKT pathway by downregulating TRIM2 in NMDA-treated RGCs. CONCLUSIONS Suppression of miR-145-5p inhibited the apoptosis of RGCs via TRIM2-mediated activation of the PI3K/AKT signaling pathway in NMDA-induced glaucoma.
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Affiliation(s)
- Kai Xu
- Department of Ophthalmology, Taizhou Second People's Hospital Affiliated to Yangzhou University, Taizhou, Jiangsu, China
| | - Sizhen Li
- Department of Nanjing Tongren Eye Center, Nanjing Tongren Hospital, Nanjing, Jiangsu, China
| | - Qingsong Yang
- Department of Nanjing Tongren Eye Center, Nanjing Tongren Hospital, Nanjing, Jiangsu, China
| | - Zixiu Zhou
- Department of Nanjing Tongren Eye Center, Nanjing Tongren Hospital, Nanjing, Jiangsu, China
| | - Min Fu
- Department of Nanjing Tongren Eye Center, Nanjing Tongren Hospital, Nanjing, Jiangsu, China
| | - Xiaodong Yang
- Department of Nanjing Tongren Eye Center, Nanjing Tongren Hospital, Nanjing, Jiangsu, China
| | - Kuanxiao Hao
- Department of Nanjing Tongren Eye Center, Nanjing Tongren Hospital, Nanjing, Jiangsu, China
| | - Yating Liu
- Department of Nanjing Tongren Eye Center, Nanjing Tongren Hospital, Nanjing, Jiangsu, China
| | - Heqing Ji
- Department of Ophthalmology, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, China
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Geng J, Yang K. circCCND1 Regulates Oxidative Stress and FGF9 to Enhance Chemoresistance of Non-Small Cell Lung Cancer via Sponging miR-187-3p. DNA Cell Biol 2021; 40:675-682. [PMID: 33733860 DOI: 10.1089/dna.2020.6412] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Circular RNAs have been shown to regulate cancer tumorigenesis and drug resistance. Recently, circCCND1 is reported to promote laryngeal squamous cell carcinoma; however, whether circCCND1 is implicated in non-small cell lung cancer (NSCLC) remains unclear. In this research, The Cancer Genome Atlas data of lung adenocarcinoma were analyzed to show gene expression and overall survival. 3-(4,5)-dimethylthiahiazo (-z-y1)-3,5-di- phenytetrazoliumromide assay and cell colony formation assay were utilized to measure cell viability and proliferation of A549 and HCC827. Apoptosis was detected by TdT-mediated dUTP Nick-End Labeling assay. Besides, reverse transcription-quantitative PCR was used to examine gene expression. We observed that circCCND1 was significantly upregulated in lung cancer cells and patients. circCCND1 knockdown attenuated cell proliferation and induced apoptosis under cisplatin treatment. Mechanistically, circCCND1 interacted with miR-187-3p to regulate reactive oxygen species and FGF9 in NSCLC cells. Finally, miR-187-3p was demonstrated to rescue circCCND1 knockdown-modulated chemoresistance of NSCLC cells. In this study, our conclusions facilitate the understanding of NSCLC drug resistance to cisplatin.
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Affiliation(s)
- Jiqun Geng
- Department of Thoracic Surgery, and Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Kaihua Yang
- Department of Radiotherapy, Affiliated Hospital of Jiangnan University, Wuxi, China
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Yin Z, Xu X, Tan Y, Cao H, Zhou W, Dong X, Mao H. Expression analysis of microRNAs and their target mRNAs of testes with high and low sperm motility in domestic pigeons (Columba livia). Genomics 2020; 113:257-264. [PMID: 33338630 DOI: 10.1016/j.ygeno.2020.12.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 11/09/2020] [Accepted: 12/13/2020] [Indexed: 11/24/2022]
Abstract
Sperm motility is one of the most important indicators to evaluate poultry fertility. In order to explore key molecular regulation roles related to sperm motility, we employed testicular RNA sequencing of pigeon. A total of 705 known and 385 novel microRNAs were identified. Compared with the low sperm motility group, four upregulated and two downregulated miRNAs in the high sperm motility group were identified. A total of 3567 target mRNAs were predicted and four target mRNAs were selected to validate by qPCR. The miRNA-mRNA interaction network analysis, indicated that mmu-miR-183-5p /FOXO1 and PC-3p-244994_31/CHDH pairs might affect sperm motility. GO and KEGG annotation analysis showed that target genes of differentially expressed miRNAs were related to serine/threonine kinase activity, ATP binding, Wnt and MAPK signaling pathway. The study provided a global miRNAs transcriptome of pigeon and a novel insight into the expression of the miRNAs in testes that associated with sperm motility.
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Affiliation(s)
- Zhaozheng Yin
- Animal Science College, Zhejiang University, Zijingang Campus, Hangzhou 310058, China
| | - Xiuli Xu
- Animal Science College, Zhejiang University, Zijingang Campus, Hangzhou 310058, China
| | - Yuge Tan
- Animal Science College, Zhejiang University, Zijingang Campus, Hangzhou 310058, China
| | - Haiyue Cao
- Animal Science College, Zhejiang University, Zijingang Campus, Hangzhou 310058, China
| | - Wei Zhou
- Animal Science College, Zhejiang University, Zijingang Campus, Hangzhou 310058, China
| | - Xinyang Dong
- Animal Science College, Zhejiang University, Zijingang Campus, Hangzhou 310058, China
| | - Haiguang Mao
- Animal Science College, Zhejiang University, Zijingang Campus, Hangzhou 310058, China.
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de Ceuninck van Capelle C, Spit M, Ten Dijke P. Current perspectives on inhibitory SMAD7 in health and disease. Crit Rev Biochem Mol Biol 2020; 55:691-715. [PMID: 33081543 DOI: 10.1080/10409238.2020.1828260] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Transforming growth factor β (TGF-β) family members play an extensive role in cellular communication that orchestrates both early development and adult tissue homeostasis. Aberrant TGF-β family signaling is associated with a pathological outcome in numerous diseases, and in-depth understanding of molecular and cellular processes could result in therapeutic benefit for patients. Canonical TGF-β signaling is mediated by receptor-regulated SMADs (R-SMADs), a single co-mediator SMAD (Co-SMAD), and inhibitory SMADs (I-SMADs). SMAD7, one of the I-SMADs, is an essential negative regulator of the pleiotropic TGF-β and bone morphogenetic protein (BMP) signaling pathways. In a negative feedback loop, SMAD7 inhibits TGF-β signaling by providing competition for TGF-β type-1 receptor (TβRI), blocking phosphorylation and activation of SMAD2. Moreover, SMAD7 recruits E3 ubiquitin SMURF ligases to the type I receptor to promote ubiquitin-mediated proteasomal degradation. In addition to its role in TGF-β and BMP signaling, SMAD7 is regulated by and implicated in a variety of other signaling pathways and functions as a mediator of crosstalk. This review is focused on SMAD7, its function in TGF-β and BMP signaling, and its role as a downstream integrator and crosstalk mediator. This crucial signaling molecule is tightly regulated by various mechanisms. We provide an overview of the ways by which SMAD7 is regulated, including noncoding RNAs (ncRNAs) and post-translational modifications (PTMs). Finally, we discuss its role in diseases, such as cancer, fibrosis, and inflammatory bowel disease (IBD).
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Affiliation(s)
| | - Maureen Spit
- Oncode Institute and Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - Peter Ten Dijke
- Oncode Institute and Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, the Netherlands
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Moschos MM, Dettoraki M, Karekla A, Lamprinakis I, Damaskos C, Gouliopoulos N, Tibilis M, Gazouli M. Polymorphism analysis of miR182 and CDKN2B genes in Greek patients with primary open angle glaucoma. PLoS One 2020; 15:e0233692. [PMID: 32492046 PMCID: PMC7269255 DOI: 10.1371/journal.pone.0233692] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 05/10/2020] [Indexed: 12/28/2022] Open
Abstract
Glaucoma is a progressive optic neuropathy resulting from retinal ganglion cells death; it represents one of the leading causes of irreversible blindness worldwide. Although, primary open angle glaucoma (POAG) is the most common type of the disease, the pathogenesis of POAG and the genetic factors contributing to disease development remain poorly understood. The aim of this study was to investigate whether the polymorphisms rs76481776 in miR182 gene and rs3217992 in cyclin-dependent kinase inhibitor-2B (CDKN2B) gene are risk factors for POAG in a series of patients of Greek origin. A case-control study was conducted including 120 patients with POAG and 113 unaffected healthy controls of Greek origin, surveyed for polymorphisms with potential correlation to POAG. DNA from each individual was tested for the miR182 rs76481776 and CDKN2B rs3217992 polymorphisms. Regarding the miR182 rs76481776 polymorphism, the T allele occurred with significantly higher frequency in POAG patients compared to controls (OR: 2.62, 95% CI: 1.56-4.39; p = 0.0002). The CDKN2B rs3217992 A allele frequency was found significantly increased in POAG patients compared to healthy individuals (OR: 1.72, 95% CI: 1.18-2.49; p = 0.005). Therefore, both rs76481776 polymorphism in miR182 gene and rs3217992 polymorphism in CDKN2B gene seem to be associated with the development of POAG in a Greek population. The carriers of the T allele of rs76481776 in miR182 and the carriers of the A allele of rs3217992 in CDKN2B have an increased risk of developing POAG.
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Affiliation(s)
- Marilita M. Moschos
- 1st Department of Ophthalmology, "G. Gennimatas" General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
- * E-mail:
| | - Maria Dettoraki
- 1st Department of Ophthalmology, "G. Gennimatas" General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Aggela Karekla
- Department of Ophthalmology, “Evangelismos” General Hospital, Athens, Greece
| | - Ioannis Lamprinakis
- Department of Ophthalmology, “Evangelismos” General Hospital, Athens, Greece
| | - Christos Damaskos
- Second Department of Propedeutic Surgery, “Laiko” General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Nikolaos Gouliopoulos
- 1st Department of Ophthalmology, "G. Gennimatas" General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Marios Tibilis
- 1st Department of Ophthalmology, "G. Gennimatas" General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Maria Gazouli
- Department of Basic Medical Sciences, Laboratory of Biology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
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Wu Y, Tao L, Liang J, Qiao Y, Liu W, Yu H, Yu X, Liu L. miR-187-3p increases gemcitabine sensitivity in breast cancer cells by targeting FGF9 expression. Exp Ther Med 2020; 20:952-960. [PMID: 32765654 PMCID: PMC7388565 DOI: 10.3892/etm.2020.8770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 01/10/2020] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is the most common type of malignancy in women, which remains a significant health concern worldwide. Gemcitabine is a frequently applied anticancer pharmacological agent. However, the efficacy of gemcitabine is limited by chemoresistance. In the present study, a combination of reverse transcription quantitative-PCR, cell viability, flow cytometry, luciferase reporter assay and western blot analysis were performed to elucidate the potential effects of miR-187-3p on gemcitabine sensitivity in the breast cancer cell line, MDA-MB-231. The results revealed that miR-187-3p was significantly decreased in the breast cancer tumor tissues. Moreover, the overexpression of miR-187-3p significantly inhibited cell viability and promoted apoptosis in MDA-MB-231 cells. In addition, miR-187-3p overexpression enhanced the anti-proliferative and pro-apoptotic effects of gemcitabine, indicating that miR-187-3p regulated gemcitabine sensitivity in breast cancer cells. Mechanistically, miR-187-3p negatively regulated the expression of fibroblast growth factor 9 (FGF9) by binding to its 3'-untranslated region. Overexpression of FGF9 reversed the aforementioned effects of miR-187-3p overexpression on cell viability and apoptosis in the presence of gemcitabine. In conclusion, the present study indicated that miR-187-3p increased gemcitabine sensitivity in breast cancer cells by targeting FGF9 expression.
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Affiliation(s)
- Yingqi Wu
- Breast Surgery Department, Chifeng Municipal Hospital, Chifeng, Inner Mongolia 024000, P.R. China
| | - Li Tao
- Breast Surgery Department, Chifeng Municipal Hospital, Chifeng, Inner Mongolia 024000, P.R. China
| | - Junwei Liang
- Oncology Department, Affiliated Hospital of Chengde Medical College, Chengde, Hebei 067000, P.R. China
| | - Yashun Qiao
- Breast Surgery Department, Chifeng Municipal Hospital, Chifeng, Inner Mongolia 024000, P.R. China
| | - Weiwei Liu
- Oncology Department, Affiliated Hospital of Chengde Medical College, Chengde, Hebei 067000, P.R. China
| | - Haina Yu
- Breast Surgery Department, Chifeng Municipal Hospital, Chifeng, Inner Mongolia 024000, P.R. China
| | - Xinghui Yu
- Breast Surgery Department, Chifeng Municipal Hospital, Chifeng, Inner Mongolia 024000, P.R. China
| | - Lanfang Liu
- Oncology Department, Affiliated Hospital of Chengde Medical College, Chengde, Hebei 067000, P.R. China
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13
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Identification of differentially expressed microRNAs in the skin of experimentally sensitized naturally affected atopic beagles by next-generation sequencing. Immunogenetics 2020; 72:241-250. [PMID: 32219493 DOI: 10.1007/s00251-020-01162-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 03/11/2020] [Indexed: 12/18/2022]
Abstract
Canine atopic dermatitis (AD) is a very common inflammatory skin disease, but limited data are available on the genetic characterization (somatic mutations, microarrays, and genome-wide association study (GWAS)) of skin lesions in affected dogs. microRNAs are good biomarkers in inflammatory and neoplastic diseases in people. The aim of this study was to evaluate microRNA expression in the skin of atopic beagles, before and after exposure to Dermatophagoides farinae. Four atopic and four unrelated age-matched healthy beagle dogs were enrolled. Total RNA was extracted from flash-frozen skin biopsies of healthy and atopic dogs. For the atopic dogs, skin biopsies were taken from non-lesional (day 0) and lesional skin (day 28 of weekly environmental challenge with Dermatophagoides farinae). Small RNA libraries were constructed and sequenced. The microRNA sequences were aligned to CanFam3.1 genome. Differential expressed microRNAs were selected on the basis of fold-change and statistical significance (fold-change ≥ 1.5 and p ≤ 0.05 as thresholds. A total of 277 microRNAs were sequenced. One hundred and twenty-one differentially regulated microRNAs were identified between non-lesional and healthy skin. Among these, two were increased amount and 119 were decreased amount. A total of 45 differentially regulated microRNAs between lesional and healthy skin were identified, 44 were decreased amount and one was increased amount. Finally, only two increased amount microRNAs were present in lesional skin when compared with that of non-lesional skin. This is the first study in which dysregulation of microRNAs has been associated with lesional and non-lesional canine AD. Larger studies are needed to understand the role of microRNA in canine AD.
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14
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Retinal miRNA Functions in Health and Disease. Genes (Basel) 2019; 10:genes10050377. [PMID: 31108959 PMCID: PMC6562649 DOI: 10.3390/genes10050377] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/15/2019] [Accepted: 05/15/2019] [Indexed: 01/12/2023] Open
Abstract
The health and function of our visual system relies on accurate gene expression. While many genetic mutations are associated with visual impairment and blindness, we are just beginning to understand the complex interplay between gene regulation and retinal pathologies. MicroRNAs (miRNAs), a class of non-coding RNAs, are important regulators of gene expression that exert their function through post-transcriptional silencing of complementary mRNA targets. According to recent transcriptomic analyses, certain miRNA species are expressed in all retinal cell types, while others are cell type-specific. As miRNAs play important roles in homeostasis, cellular function, and survival of differentiated retinal cell types, their dysregulation is associated with retinal degenerative diseases. Thus, advancing our understanding of the genetic networks modulated by miRNAs is central to harnessing their potential as therapeutic agents to overcome visual impairment. In this review, we summarize the role of distinct miRNAs in specific retinal cell types, the current knowledge on their implication in inherited retinal disorders, and their potential as therapeutic agents.
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15
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Yin R, Chen X. Regulatory effect of miR-144-3p on the function of human trabecular meshwork cells and fibronectin-1. Exp Ther Med 2019; 18:647-653. [PMID: 31258702 PMCID: PMC6566054 DOI: 10.3892/etm.2019.7584] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 04/23/2019] [Indexed: 12/23/2022] Open
Abstract
Role of microRNA (miR)-144-3p in regulating the function of human trabecular meshwork cells (HTMCs) and fibronectin-1 (FN-1) was investigated. HTM cell lines were divided into five groups, of which four groups established oxidative stress HTMC models and one served as a control group. The four model groups were transfected with miR-144-3p independent sequence, inhibitory sequence, over-expression sequence, and the blank group received no transfection. In addition, 40 primary open angle glaucoma patients treated in Xuzhou No. 1 People's Hospital were included in the observation group, and 40 healthy individuals were enrolled as a normal group. RT-qPCR was used for the detection of miR-144-3p expression in serum and cells of patients and healthy people in each group, western blot analysis for FN-1 expression in cells, CCK-8 kit for cell proliferation, and Transwell for cell invasion. The expression of serum miR-144-3p in the observation group was significantly lower than that in the normal group (P<0.05). The cell optical density value in the over-expression group was significantly higher than that in the other groups (P<0.05), and in the inhibition group was significantly lower than that in the other groups (P<0.05). The number of cell-penetration in the over-expression group was significantly higher than that in the other groups (P<0.05). The expression of FN-1 protein in the over-expression group was significantly lower than that in the other four groups (P<0.05), and the expression in the inhibition group was significantly higher than that in the other four groups (P<0.05). The over-expression of miR-144-3p promotes proliferation and invasion of HTMCs by inhibiting the expression of FN-1 in inoxidative stress HTMCs, and is a potential target for glaucoma treatment.
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Affiliation(s)
- Ruoxi Yin
- Postgraduate School, Xuzhou Medical University, Xuzhou Eye Hospital, Xuzhou, Jiangsu 221000, P.R. China
| | - Xiaoya Chen
- Department of Ophthalmology, Xuzhou No. 1 People's Hospital, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University, Xuzhou Eye Hospital, Xuzhou, Jiangsu 221000, P.R. China
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16
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Tang L, He S, Zhu Y, Feng B, Su Z, Liu B, Xu F, Wang X, Liu H, Li C, Zhao J, Zheng X, Li C, Sun C, Lu C, Zheng G. Downregulated miR-187 contributes to the keratinocytes hyperproliferation in psoriasis. J Cell Physiol 2018; 234:3661-3674. [PMID: 30607907 DOI: 10.1002/jcp.27135] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 07/05/2018] [Indexed: 01/08/2023]
Abstract
Psoriasis is a common chronic skin disease characterized by epidermal hyperplasia and inflammation. However, the pathogenesis of psoriasis is multifactorial and is not fully understood. MicroRNAs (miRNAs) represent a promising class of small, noncoding RNA molecules that have a large impact on cellular functions by regulating gene expression. Here we reported that microRNA-187 (miR-187), which is one of the most dynamic microRNAs identified in the deep screening miRNAs profile, is downregulated in inflammatory cytokines-stimulated keratinocytes and psoriatic skins. By luciferase activity assay and gain-of-function studies, we showed that miR-187 inhibits keratinocytes hyperproliferation by targeting CD276. Moreover, overexpression of miR-187 decreases acanthosis and reduces the disease severity in psoriasis mouse models. Taken together, the results of our study implies miR-187 as a critical factor in psoriasis pathogenesis, which could be a potent target for psoriasis treatment.
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Affiliation(s)
- Lipeng Tang
- Deparment of Pharmacology of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.,The Postdoctoral Research Station, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Songmin He
- Deparment of Pharmacology of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Ying Zhu
- Deparment of Pharmacology of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Bing Feng
- Deparment of Pharmacology of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Zuqing Su
- Deparment of Pharmacology of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Bo Liu
- Department of Chemical Research and Structural Optimization based on Chinese Material Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Fangfang Xu
- Department of Chemical Research and Structural Optimization based on Chinese Material Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Xieqi Wang
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Hongying Liu
- Department of Pathology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Chutian Li
- Department of Pathology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Jie Zhao
- Department of Pathology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Xirun Zheng
- Department of Pathology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Caiyun Li
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Chaoyue Sun
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Chuanjian Lu
- Department of Dermatology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Guangjuan Zheng
- Deparment of Pharmacology of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.,Department of Pathology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
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17
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Zhang QL, Wang W, Alatantuya, Dongmei, Lu ZJ, Li LL, Zhang TZ. Down-regulated miR-187 promotes oxidative stress-induced retinal cell apoptosis through P2X7 receptor. Int J Biol Macromol 2018; 120:801-810. [PMID: 30170060 DOI: 10.1016/j.ijbiomac.2018.08.166] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 12/18/2022]
Abstract
Several microRNAs (miRNAs) expressed in the retina were confirmed to involve in retinal cell apoptosis, which was closely linked with the development of retinal diseases. Our previous studies have confirmed a vital role of miR-187 in retinal cells apoptosis. The aim of this study was to further elucidate the precise role of miR-187 and its probable mechanisms in RGC-5 cells apoptosis. The cellular oxidative stress status was assessed by reactive oxygen species (ROS) production and malondialdehyde (MDA) level. Our results showed that the elevated pressure, glutamate and H2O2-induced oxidative stress in RGC-5 cells was accompanied by a decrease in miR-187 expression and an increase in P2X7R expression. However, overexpression of miR-187 reversed this activation of oxidative stress in RGC-5 cells. Moreover, we also revealed that miR-187 inhibited the oxidative stress-induced apoptosis of RGC-5 cells through negative regulating P2X7R, probably through interacting with the 3'UTR of P2X7R. Finally, we confirmed that the forced miR-187 expression alleviated oxidative stress injury in retina tissues of rat models with chronic ocular hypertension. Our data demonstrated that miR-187/P2X7R signaling was involved in retinal cell apoptosis, at least in part, through activating oxidative stress.
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Affiliation(s)
- Qiu-Li Zhang
- Department of Ophthalmology, Affiliated Hospital of Inner Mongolia University for the Nationalities, No. 1742, HuoLinHe Street, Tongliao, Neimenggu 028050, China.
| | - Wei Wang
- Department of Ophthalmology, Tongliao Hospital, No. 668, KeErQin Street, Tongliao, Neimenggu 028000, China
| | - Alatantuya
- Department of Ophthalmology, Affiliated Hospital of Inner Mongolia University for the Nationalities, No. 1742, HuoLinHe Street, Tongliao, Neimenggu 028050, China
| | - Dongmei
- Department of Ophthalmology, Affiliated Hospital of Inner Mongolia University for the Nationalities, No. 1742, HuoLinHe Street, Tongliao, Neimenggu 028050, China
| | - Zhan-Jun Lu
- Department of Ophthalmology, Affiliated Hospital of Inner Mongolia University for the Nationalities, No. 1742, HuoLinHe Street, Tongliao, Neimenggu 028050, China
| | - Lan-Lan Li
- Department of Ophthalmology, Affiliated Hospital of Inner Mongolia University for the Nationalities, No. 1742, HuoLinHe Street, Tongliao, Neimenggu 028050, China
| | - Tian-Zi Zhang
- Department of Ophthalmology, Affiliated Hospital of Inner Mongolia University for the Nationalities, No. 1742, HuoLinHe Street, Tongliao, Neimenggu 028050, China
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18
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Dai M, Zhang Q, Zheng Z, Wang J. Retinal ganglion cell-conditioned medium and surrounding pressure alters gene expression and differentiation of rat retinal progenitor cells. Mol Med Rep 2018; 17:7177-7183. [PMID: 29568879 PMCID: PMC5928676 DOI: 10.3892/mmr.2018.8738] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 12/04/2017] [Indexed: 12/13/2022] Open
Abstract
Loss of retinal ganglion cells is implicated in glaucoma and high intraocular pressure. Factors that affect the differentiation of retinal progenitor cells into retinal ganglion cells remain unclear. The present study aimed to investigate the effects of retinal ganglion cell‑conditioned medium on gene expression and differentiation in retinal progenitor cells, and the effects of surrounding pressure on the survival and differentiation of retinal progenitor cells. Retinal progenitor cells and retinal ganglion cells were isolated from rats. Immunofluorescence staining of Nestin and Thy1 was performed to identify rat retinal progenitor cells and retinal ganglion cells, respectively. Retinal progenitor cells and ganglion cells were cultured for 48 h under surrounding pressure of 0, 20, 40, 60 and 80 mmHg. Cellular apoptosis was detected using a caspase‑3 assay kit. In addition, the culture supernatant of rat retinal ganglion cells was collected. Retinal progenitor cells were cultured in the presence or absence of retinal ganglion‑conditioned medium for 72 h under normal pressure. Gene expression of Nestin, paired box protein 6 (PAX6), Thy1 and brain‑specific homeobox/POU domain protein 3 (Brn‑3) in retinal progenitor cells was detected by reverse transcription‑quantitative polymerase chain reaction. Retinal progenitor cells were cultured in retinal ganglion‑conditioned medium for 72 h under surrounding pressure of 0 and 40 mmHg, respectively, and flow cytometry was utilized to evaluate the effects of pressure on the differentiation of retinal progenitor cells into retinal ganglion cells. The results demonstrated that isolated retinal progenitor cells were Nestin‑positive and retinal ganglion cells were Thy1‑positive, suggesting successful isolation. The activity of caspase‑3 increased in retinal progenitor cells and retinal ganglion cells in a pressure‑dependent manner. When the surrounding pressure reached 40, 60 and 80 mmHg, the activity of caspase‑3 in retinal progenitor cells and ganglion cells increased significantly compared with cells that were not under pressure. Compared with retinal progenitor cells cultured without ganglion‑conditioned medium, those cultured with ganglion‑conditioned medium had significantly decreased expression levels of Nestin and PAX6, and increased expression levels of Thy1 and Brn3. Compared with 0 mmHg pressure, retinal progenitor cells cultured in ganglion‑conditioned medium under 40 mmHg pressure had increased percentages of Thy1‑positive cells. In conclusion, the apoptosis of rat retinal progenitor cells and retinal ganglion cells was pressure‑dependent. Retinal ganglion cell‑conditioned medium increased the differentiation of retinal progenitor cells into retinal ganglion‑like cells, and the differentiation increased as surrounding pressure increased. Current study provides insights that may contribute to the efforts of developing a treatment for glaucoma.
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Affiliation(s)
- Min Dai
- Department of Ophthalmology, Second People's Hospital of Yunnan Province, Kunming, Yunan 650021, P.R. China
| | - Qing Zhang
- Department of Ophthalmology, Second People's Hospital of Yunnan Province, Kunming, Yunan 650021, P.R. China
| | - Zhikun Zheng
- Department of Ophthalmology, Second People's Hospital of Yunnan Province, Kunming, Yunan 650021, P.R. China
| | - Jianzhou Wang
- Department of Ophthalmology, Yan'an Hospital, Kunming, Yunan 650051, P.R. China
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19
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Li R, Jin Y, Li Q, Sun X, Zhu H, Cui H. MiR-93-5p targeting PTEN regulates the NMDA-induced autophagy of retinal ganglion cells via AKT/mTOR pathway in glaucoma. Biomed Pharmacother 2018; 100:1-7. [PMID: 29421576 DOI: 10.1016/j.biopha.2018.01.044] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 12/15/2017] [Accepted: 01/05/2018] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Glaucoma is hallmarked with the death of retinal neurons in the ganglion cell layer, which results in irreversible vision loss. The abnormal levels of miRNA have been associated with glaucoma. Our study purposed to explore the underlying molecule mechanism of miR-93-5p in NMDA-induced glaucoma. METHODS The Sprague-Dawley (SD) rats were used for the establishment of glaucoma model with the injection of NMDA. Vision behavior test were performed on the glaucoma rats. MiR-93-5p expression was determined by real-time PCR. The levels of autophagy-related protein and PTEN were assessed by Western blot assays. TUNEL assay and flow cytometry were performed to analyze cell apoptosis in vivo and in vitro, respectively. And cell viability was examined by CKK-8 assay. The relationship between miR-93-5p and PTEN was confirmed by Dual-Luciferase reporter gene system. RESULTS NMDA-induced glaucoma rats exhibited less time in the dark box, suggesting the recession of their vision. Moreover, the retinal ganglion cell (RGC) viability was reduced not only in the glaucoma rat models but also in the glaucoma RGC models. The autophagy-related protein was obviously increased in the NMDA-treated rats or RGCs. PTEN regulated the autophagy of RGCs through AKT/mTOR pathway in NMDA-treated RGCs. MiR-93-5p could target regulate PTEN negatively, and exhibit the similar effect of 3-MA on the survival of RGCs. CONCLUSION Up-regulation of miR-93-5p binding with PTEN suppressed the autophagy of RGCs through AKT/mTOR pathway in NMDA-induced glaucoma.
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Affiliation(s)
- Rui Li
- Department of Ophthalmology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, 200240, China
| | - Yiping Jin
- Department of Ophthalmology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, 200240, China
| | - Qian Li
- Department of Ophthalmology, Shanghai East Hospital, Tongji University, Shanghai, 200120, China
| | - Xinghuai Sun
- Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, 200031, China
| | - Haohao Zhu
- Department of Ophthalmology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, 200240, China.
| | - Hongping Cui
- Department of Ophthalmology, Shanghai East Hospital, Tongji University, Shanghai, 200120, China.
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20
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Ghanbari M, Iglesias AI, Springelkamp H, van Duijn CM, Ikram MA, Dehghan A, Erkeland SJ, Klaver CCW, Meester-Smoor MA. A Genome-Wide Scan for MicroRNA-Related Genetic Variants Associated With Primary Open-Angle Glaucoma. Invest Ophthalmol Vis Sci 2017; 58:5368-5377. [PMID: 29049738 PMCID: PMC6110129 DOI: 10.1167/iovs.17-22410] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose To identify microRNAs (miRNAs) involved in primary open-angle glaucoma (POAG), using genetic data. MiRNAs are small noncoding RNAs that posttranscriptionally regulate gene expression. Genetic variants in miRNAs or miRNA-binding sites within gene 3'-untranslated regions (3'UTRs) are expected to affect miRNA function and contribute to disease risk. Methods Data from the recent genome-wide association studies on intraocular pressure, vertical cup-to-disc ratio (VCDR), cupa area and disc area were used to investigate the association of miRNAs with POAG endophenotypes. Putative targets of the associated miRNAs were studied according to their association with POAG and tested in cell line by transfection experiments for regulation by the miRNAs. Results Of 411 miRNA variants, rs12803915:A/G in the terminal loop of pre-miR-612 and rs2273626:A/C in the seed sequence of miR-4707 were significantly associated with VCDR and cup area (P values < 1.2 × 10-4). The first variant is demonstrated to increase the miR-612 expression. We showed that the second variant does not affect the miR-4707 biogenesis, but reduces the binding of miR-4707-3p to CARD10, a gene known to be involved in glaucoma. Moreover, of 72,052 miRNA-binding-site variants, 47 were significantly associated with four POAG endophenotypes (P value < 6.9 × 10-6). Of these, we highlighted 10 variants that are more likely to affect miRNA-mediated gene regulation in POAG. These include rs3217992 and rs1063192, which have been shown experimentally to affect miR-138-3p- and miR-323b-5p-mediated regulation of CDKN2B. Conclusions We identified a number of miRNAs that are associated with POAG endophenotypes. The identified miRNAs and their target genes are candidates for future studies on miRNA-related therapies for POAG.
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Affiliation(s)
- Mohsen Ghanbari
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands.,Department of Genetics, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Adriana I Iglesias
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands.,Department of Ophthalmology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Henriët Springelkamp
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands.,Department of Ophthalmology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Cornelia M van Duijn
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - M Arfan Ikram
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands.,Department of Neurology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Abbas Dehghan
- Department of Epidemiology & Biostatistics, Imperial College London, London, United Kingdom
| | - Stefan J Erkeland
- Department of Immunology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Caroline C W Klaver
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands.,Department of Ophthalmology, Erasmus University Medical Center, Rotterdam, The Netherlands.,Department of Ophthalmology, Radbound University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Magda A Meester-Smoor
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands.,Department of Ophthalmology, Erasmus University Medical Center, Rotterdam, The Netherlands
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Abstract
This study aimed to explore the role of aberrant miRNA expression in epilepsy and to identify more potential genes associated with epileptogenesis.The miRNA expression profile of GSE49850, which included 20 samples from the rat epileptic dentate gyrus at 7, 14, 30, and 90 days after electrical stimulation and 20 additional samples from sham time-matched controls, was downloaded from the Gene Expression Omnibus database. The significantly differentially expressed miRNAs were identified in stimulated samples at each time point compared to time-matched controls, respectively. The target genes of consistently differentially expressed miRNAs were screened from miRDB and microRNA.org databases, followed by Gene Ontology (GO) and pathway enrichment analysis and regulatory network construction. The overlapping target genes for consistently differentially expressed miRNAs were also identified from these 2 databases. Furthermore, the potential binding sites of miRNAs and their target genes were analyzed.Rno-miR-187-3p was consistently downregulated in stimulated groups compared with time-matched controls. The predicted target genes of rno-miR-187-3p were enriched in different GO terms and pathways. In addition, 7 overlapping target genes of rno-miR-187-3p were identified, including NFS1, PAQR4, CAND1, DCLK1, PRKAR2A, AKAP3, and KCNK10. These 7 overlapping target genes were determined to have a different number of matched binding sites with rno-miR-187-3p.Our study suggests that miR-187-3p may play an important role in epilepsy development and progression via regulating numerous target genes, such as NFS1, CAND1, DCLK1, AKAP3, and KCNK10. Determining the underlying mechanism of the role of miR-187-3p in epilepsy may make it a potential therapeutic option.
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Affiliation(s)
- Suya Zhang
- Department of Neurology, Shanghai Baoshan District Hospital of Integrated Traditional and Western Medicine
| | - Yubin Kou
- Department of General Surgery, Shuguang Hospital Baoshan Branch
| | - Chunmei Hu
- Department of Neurology, Shuguang Hospital Baoshan Branch
| | - Yan Han
- Department of Neurology, Changhai Hospital, Shanghai, China
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22
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Mao M, Wu Z, Chen J. MicroRNA-187-5p suppresses cancer cell progression in non-small cell lung cancer (NSCLC) through down-regulation of CYP1B1. Biochem Biophys Res Commun 2016; 478:649-55. [DOI: 10.1016/j.bbrc.2016.08.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 08/01/2016] [Indexed: 12/20/2022]
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23
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Sun C, Li S, Yang C, Xi Y, Wang L, Zhang F, Li D. MicroRNA-187-3p mitigates non-small cell lung cancer (NSCLC) development through down-regulation of BCL6. Biochem Biophys Res Commun 2016; 471:82-8. [DOI: 10.1016/j.bbrc.2016.01.175] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 01/18/2016] [Accepted: 01/28/2016] [Indexed: 12/31/2022]
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