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Dovrolis N, Filidou E, Tarapatzi G, Kokkotis G, Spathakis M, Kandilogiannakis L, Drygiannakis I, Valatas V, Arvanitidis K, Karakasiliotis I, Vradelis S, Manolopoulos VG, Paspaliaris V, Bamias G, Kolios G. Co-expression of fibrotic genes in inflammatory bowel disease; A localized event? Front Immunol 2022; 13:1058237. [PMID: 36632136 PMCID: PMC9826764 DOI: 10.3389/fimmu.2022.1058237] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 12/08/2022] [Indexed: 12/27/2022] Open
Abstract
Introduction Extracellular matrix turnover, a ubiquitous dynamic biological process, can be diverted to fibrosis. The latter can affect the intestine as a serious complication of Inflammatory Bowel Diseases (IBD) and is resistant to current pharmacological interventions. It embosses the need for out-of-the-box approaches to identify and target molecular mechanisms of fibrosis. Methods and results In this study, a novel mRNA sequencing dataset of 22 pairs of intestinal biopsies from the terminal ileum (TI) and the sigmoid of 7 patients with Crohn's disease, 6 with ulcerative colitis and 9 control individuals (CI) served as a validation cohort of a core fibrotic transcriptomic signature (FIBSig), This signature, which was identified in publicly available data (839 samples from patients and healthy individuals) of 5 fibrotic disorders affecting different organs (GI tract, lung, skin, liver, kidney), encompasses 241 genes and the functional pathways which derive from their interactome. These genes were used in further bioinformatics co-expression analyses to elucidate the site-specific molecular background of intestinal fibrosis highlighting their involvement, particularly in the terminal ileum. We also confirmed different transcriptomic profiles of the sigmoid and terminal ileum in our validation cohort. Combining the results of these analyses we highlight 21 core hub genes within a larger single co-expression module, highly enriched in the terminal ileum of CD patients. Further pathway analysis revealed known and novel inflammation-regulated, fibrogenic pathways operating in the TI, such as IL-13 signaling and pyroptosis, respectively. Discussion These findings provide a rationale for the increased incidence of fibrosis at the terminal ileum of CD patients and highlight operating pathways in intestinal fibrosis for future evaluation with mechanistic and translational studies.
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Affiliation(s)
- Nikolas Dovrolis
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Laboratory of Biology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece,*Correspondence: George Kolios, ; Nikolas Dovrolis,
| | - Eirini Filidou
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece
| | - Gesthimani Tarapatzi
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece
| | - Georgios Kokkotis
- Gastrointestinal (GI) Unit, 3 Department of Internal Medicine, Sotiria Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Michail Spathakis
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece
| | - Leonidas Kandilogiannakis
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece
| | - Ioannis Drygiannakis
- Gastroenterology and Hepatology Research Laboratory, Medical School, University of Crete, Heraklion, Greece
| | - Vassilis Valatas
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Gastroenterology and Hepatology Research Laboratory, Medical School, University of Crete, Heraklion, Greece
| | - Konstantinos Arvanitidis
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece
| | - Ioannis Karakasiliotis
- Laboratory of Biology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Stergios Vradelis
- Second Department of Internal Medicine, University Hospital of Alexandroupolis, Democritus University of Thrace, Alexandroupolis, Greece
| | - Vangelis G. Manolopoulos
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece
| | | | - Giorgos Bamias
- Gastrointestinal (GI) Unit, 3 Department of Internal Medicine, Sotiria Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - George Kolios
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece,*Correspondence: George Kolios, ; Nikolas Dovrolis,
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Guo G, Wang Y, Kou W, Gan H. Identifying the molecular mechanisms of sepsis-associated acute kidney injury and predicting potential drugs. Front Genet 2022; 13:1062293. [PMID: 36579331 PMCID: PMC9792148 DOI: 10.3389/fgene.2022.1062293] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 11/22/2022] [Indexed: 12/14/2022] Open
Abstract
Objective: To provide insights into the diagnosis and therapy of SA-AKI via ferroptosis genes. Methods: Based on three datasets (GSE57065, GSE30718, and GSE53771), we used weighted co-expression network analysis to identify the key regulators of SA-AKI, its potential biological functions, and constructed miRNA‒mRNA complex regulatory relationships. We also performed machine learning and in vitro cell experiments to identify ferroptosis genes that are significantly related to SA-AKI in the two datasets. The CIBERSORT algorithm evaluates the degree of infiltration of 22 types of immune cell. We compared the correlation between ferroptosis and immune cells by Pearson's correlation analysis and verified the key genes related to the immune response to reveal potential diagnostic markers. Finally, we predicted the effects of drugs and the potential therapeutic targets for septic kidney injury by pRRophetic. Results: We found 264 coDEGs involving 1800 miRNA molecules that corresponded to 210 coDEGs. The miRNA‒mRNA ceRNA interaction network was constructed to obtain the top-10 hub nodes. We obtained the top-20 ferroptosis genes, 11 of which were in the intersection. We also identified a relationship between ferroptosis genes and the immune cells in the AKI dataset, which showed that neutrophils were activated and that regulatory T cells were surpassed. Finally, we identified EHT1864 and salubrinal as potential therapeutic agents. Conclusion: This study demonstrated the roles of miR-650 and miR-296-3p genes in SA-AKI. Furthermore, we identified OLFM4, CLU, RRM2, SLC2A3, CCL5, ADAMTS1, and EPHX2 as potential biomarkers. The irregular immune response mediated by neutrophils and Treg cells is involved in the development of AKI and shows a correlation with ferroptosis genes. EHT 1864 and salubrinal have potential as drug candidates in patients with septic acute kidney injury.
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Wei R, Qiao J, Cui D, Pan Q, Guo L. Screening and Identification of Hub Genes in the Development of Early Diabetic Kidney Disease Based on Weighted Gene Co-Expression Network Analysis. Front Endocrinol (Lausanne) 2022; 13:883658. [PMID: 35721731 PMCID: PMC9204256 DOI: 10.3389/fendo.2022.883658] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 04/13/2022] [Indexed: 11/21/2022] Open
Abstract
Objective The study aimed to screen key genes in early diabetic kidney disease (DKD) and predict their biological functions and signaling pathways using bioinformatics analysis of gene chips interrelated to early DKD in the Gene Expression Omnibus database. Methods Gene chip data for early DKD was obtained from the Gene Expression Omnibus expression profile database. We analyzed differentially expressed genes (DEGs) between patients with early DKD and healthy controls using the R language. For the screened DEGs, we predicted the biological functions and relevant signaling pathways by enrichment analysis of Gene Ontology (GO) biological functions and Kyoto Encyclopedia of Genes and Genomes (KEGG) signaling pathways. Using the STRING database and Cytoscape software, we constructed a protein interaction network to screen hub pathogenic genes. Finally, we performed immunohistochemistry on kidney specimens from the Beijing Hospital to verify the above findings. Results A total of 267 differential genes were obtained using GSE142025, namely, 176 upregulated and 91 downregulated genes. GO functional annotation enrichment analysis indicated that the DEGs were mainly involved in immune inflammatory response and cytokine effects. KEGG pathway analysis indicated that C-C receptor interactions and the IL-17 signaling pathway are essential for early DKD. We identified FOS, EGR1, ATF3, and JUN as hub sites of protein interactions using a protein-protein interaction network and module analysis. We performed immunohistochemistry (IHC) on five samples of early DKD and three normal samples from the Beijing Hospital to label the proteins. This demonstrated that FOS, EGR1, ATF3, and JUN in the early DKD group were significantly downregulated. Conclusion The four hub genes FOS, EGR1, ATF3, and JUN were strongly associated with the infiltration of monocytes, M2 macrophages, and T regulatory cells in early DKD samples. We revealed that the expression of immune response or inflammatory genes was suppressed in early DKD. Meanwhile, the FOS group of low-expression genes showed that the activated biological functions included mRNA methylation, insulin receptor binding, and protein kinase A binding. These genes and pathways may serve as potential targets for treating early DKD.
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Affiliation(s)
- Ran Wei
- Department of Endocrinology, Peking University Fifth School of Clinical Medicine, Beijing, China
| | - Jingtao Qiao
- Department of Endocrinology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Di Cui
- Department of Pathology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Qi Pan
- Department of Endocrinology, Peking University Fifth School of Clinical Medicine, Beijing, China
| | - Lixin Guo
- Department of Endocrinology, Peking University Fifth School of Clinical Medicine, Beijing, China
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Joshi H, Vastrad B, Joshi N, Vastrad C. Integrated bioinformatics analysis reveals novel key biomarkers in diabetic nephropathy. SAGE Open Med 2022; 10:20503121221137005. [PMID: 36385790 PMCID: PMC9661593 DOI: 10.1177/20503121221137005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 10/18/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives: The underlying molecular mechanisms of diabetic nephropathy have yet not been investigated clearly. In this investigation, we aimed to identify key genes involved in the pathogenesis and prognosis of diabetic nephropathy. Methods: We downloaded next-generation sequencing data set GSE142025 from Gene Expression Omnibus database having 28 diabetic nephropathy samples and nine normal control samples. The differentially expressed genes between diabetic nephropathy and normal control samples were analyzed. Biological function analysis of the differentially expressed genes was enriched by Gene Ontology and REACTOME pathways. Then, we established the protein–protein interaction network, modules, miRNA-differentially expressed gene regulatory network and transcription factor-differentially expressed gene regulatory network. Hub genes were validated by using receiver operating characteristic curve analysis. Results: A total of 549 differentially expressed genes were detected including 275 upregulated and 274 downregulated genes. The biological process analysis of functional enrichment showed that these differentially expressed genes were mainly enriched in cell activation, integral component of plasma membrane, lipid binding, and biological oxidations. Analyzing the protein–protein interaction network, miRNA-differentially expressed gene regulatory network and transcription factor-differentially expressed gene regulatory network, we screened hub genes MDFI, LCK, BTK, IRF4, PRKCB, EGR1, JUN, FOS, ALB, and NR4A1 by the Cytoscape software. The receiver operating characteristic curve analysis confirmed that hub genes were of diagnostic value. Conclusions: Taken above, using integrated bioinformatics analysis, we have identified key genes and pathways in diabetic nephropathy, which could improve our understanding of the cause and underlying molecular events, and these key genes and pathways might be therapeutic targets for diabetic nephropathy.
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Affiliation(s)
- Harish Joshi
- Endocrine and Diabetes Care Center, Hubbali, India
| | - Basavaraj Vastrad
- Department of Pharmaceutical Chemistry, KLE Society’s College of Pharmacy, Gadag, India
| | - Nidhi Joshi
- Dr. D. Y. Patil Medical College, Kolhapur, India
| | - Chanabasayya Vastrad
- Biostatistics and Bioinformatics, Chanabasava Nilaya, Dharwad, India
- Chanabasayya Vastrad, Biostatistics and Bioinformatics, Chanabasava Nilaya, Bharthinagar, Dharwad 580001, India.
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Feng ST, Yang Y, Yang JF, Gao YM, Cao JY, Li ZL, Tang TT, Lv LL, Wang B, Wen Y, Sun L, Xing GL, Liu BC. Urinary sediment CCL5 messenger RNA as a potential prognostic biomarker of diabetic nephropathy. Clin Kidney J 2021; 15:534-544. [PMID: 35211307 PMCID: PMC8862108 DOI: 10.1093/ckj/sfab186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Indexed: 12/14/2022] Open
Abstract
ABSTRACT
Background
Urinary sediment messenger RNAs (mRNAs) have been shown as novel biomarkers of kidney disease. We aimed to identify targeted urinary mRNAs in diabetic nephropathy (DN) based on bioinformatics analysis and clinical validation.
Methods
Microarray studies of DN were searched in the GEO database and Nephroseq platform. Gene modules negatively correlated with estimated glomerular filtration rate (eGFR) were identified by informatics methods. Hub genes were screened within the selected modules. In validation cohorts, a quantitative polymerase chain reaction assay was used to compare the expression levels of candidate mRNAs. Patients with renal biopsy–confirmed DN were then followed up for a median time of 21 months. End-stage renal disease (ESRD) was defined as the primary endpoint. Multivariate Cox proportional hazards regression was developed to evaluate the prognostic values of candidate mRNAs.
Results
Bioinformatics analysis revealed four chemokines (CCL5, CXCL1, CXLC6 and CXCL12) as candidate mRNAs negatively correlated with eGFR, of which CCL5 and CXCL1 mRNA levels were upregulated in the urinary sediment of patients with DN. In addition, urinary sediment mRNA of CXCL1 was negatively correlated with eGFR (r = −0.2275, P = 0.0301) and CCL5 level was negatively correlated with eGFR (r = −0.4388, P < 0.0001) and positively correlated with urinary albumin:creatinine ratio (r = 0.2693, P = 0.0098); also, CCL5 and CXCL1 were upregulated in patients with severe renal interstitial fibrosis. Urinary sediment CCL5 mRNA was an independent predictor of ESRD [hazard ratio 1.350 (95% confidence interval 1.045–1.745)].
Conclusions
Urinary sediment CCL5 and CXCL1 mRNAs were upregulated in DN patients and associated with a decline in renal function and degree of renal interstitial fibrosis. Urinary sediment CCL5 mRNA could be used as a potential prognostic biomarker of DN.
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Affiliation(s)
- Song-Tao Feng
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu Province, China
| | - Yang Yang
- Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Jin-Fei Yang
- Department of Nephrology, the Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China
| | - Yue-Ming Gao
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu Province, China
| | - Jing-Yuan Cao
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu Province, China
| | - Zuo-Lin Li
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu Province, China
| | - Tao-Tao Tang
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu Province, China
| | - Lin-Li Lv
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu Province, China
| | - Bin Wang
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu Province, China
| | - Yi Wen
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu Province, China
| | - Lin Sun
- Department of Nephrology, the Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China
| | - Guo-Lan Xing
- Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Bi-Cheng Liu
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu Province, China
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Srivastava SP, Goodwin JE, Tripathi P, Kanasaki K, Koya D. Interactions among Long Non-Coding RNAs and microRNAs Influence Disease Phenotype in Diabetes and Diabetic Kidney Disease. Int J Mol Sci 2021; 22:ijms22116027. [PMID: 34199672 PMCID: PMC8199750 DOI: 10.3390/ijms22116027] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/21/2021] [Accepted: 05/27/2021] [Indexed: 02/07/2023] Open
Abstract
Large-scale RNA sequencing and genome-wide profiling data revealed the identification of a heterogeneous group of noncoding RNAs, known as long noncoding RNAs (lncRNAs). These lncRNAs play central roles in health and disease processes in diabetes and cancer. The critical association between aberrant expression of lncRNAs in diabetes and diabetic kidney disease have been reported. LncRNAs regulate diverse targets and can function as sponges for regulatory microRNAs, which influence disease phenotype in the kidneys. Importantly, lncRNAs and microRNAs may regulate bidirectional or crosstalk mechanisms, which need to be further investigated. These studies offer the novel possibility that lncRNAs may be used as potential therapeutic targets for diabetes and diabetic kidney diseases. Here, we discuss the functions and mechanisms of actions of lncRNAs, and their crosstalk interactions with microRNAs, which provide insight and promise as therapeutic targets, emphasizing their role in the pathogenesis of diabetes and diabetic kidney disease.
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Affiliation(s)
- Swayam Prakash Srivastava
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT 06511, USA;
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06511, USA
- Correspondence: or (S.P.S.); (D.K.)
| | - Julie E. Goodwin
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT 06511, USA;
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06511, USA
| | - Pratima Tripathi
- Department of Biochemistry, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow 226010, India;
| | - Keizo Kanasaki
- Internal Medicine 1, Shimane University Faculty of Medicine, Izumo 693-0021, Japan;
| | - Daisuke Koya
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Ishikawa 920-0293, Japan
- Correspondence: or (S.P.S.); (D.K.)
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Duan YR, Chen BP, Chen F, Yang SX, Zhu CY, Ma YL, Li Y, Shi J. LncRNA lnc-ISG20 promotes renal fibrosis in diabetic nephropathy by inducing AKT phosphorylation through miR-486-5p/NFAT5. J Cell Mol Med 2021; 25:4922-4937. [PMID: 33939247 PMCID: PMC8178263 DOI: 10.1111/jcmm.16280] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 12/21/2020] [Accepted: 12/24/2020] [Indexed: 12/12/2022] Open
Abstract
Long non‐coding RNA (lncRNA) lnc‐ISG20 has been found aberrantly up‐regulated in the glomerular in the patients with diabetic nephropathy (DN). We aimed to elucidate the function and regulatory mechanism of lncRNA lnc‐ISG20 on DN‐induced renal fibrosis. Expression patterns of lnc‐ISG20 in kidney tissues of DN patients were determined by RT‐qPCR. Mouse models of DN were constructed, while MCs were cultured under normal glucose (NG)/high glucose (HG) conditions. The expression patterns of fibrosis marker proteins collagen IV, fibronectin and TGF‐β1 were measured with Western blot assay. In addition, the relationship among lnc‐ISG20, miR‐486‐5p, NFAT5 and AKT were analysed using dual‐luciferase reporter assay and RNA immunoprecipitation. The effect of lnc‐ISG20 and miR‐486/NFAT5/p‐AKT axis on DN‐associated renal fibrosis was also verified by means of rescue experiments. The expression levels of lnc‐ISG20 were increased in DN patients, DN mouse kidney tissues and HG‐treated MCs. Lnc‐ISG20 silencing alleviated HG‐induced fibrosis in MCs and delayed renal fibrosis in DN mice. Mechanistically, miR‐486‐5p was found to be a downstream miRNA of lnc‐ISG20, while miR‐486‐5p inhibited the expression of NFAT5 by binding to its 3'UTR. NFAT5 overexpression aggravated HG‐induced fibrosis by stimulating AKT phosphorylation. However, NFAT5 silencing reversed the promotion of in vitro and in vivo fibrosis caused by lnc‐ISG20 overexpression. Our collective findings indicate that lnc‐ISG20 promotes the renal fibrosis process in DN by activating AKT through the miR‐486‐5p/NFAT5 axis. High‐expression levels of lnc‐ISG20 may be a useful indicator for DN.
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Affiliation(s)
- Yu-Rui Duan
- Department of Nephrology, Huaihe Hospital of Henan University, Kaifeng, China
| | - Bao-Ping Chen
- Department of Nephrology, Huaihe Hospital of Henan University, Kaifeng, China
| | - Fang Chen
- Department of Nephrology, Huaihe Hospital of Henan University, Kaifeng, China
| | - Su-Xia Yang
- Department of Nephrology, Huaihe Hospital of Henan University, Kaifeng, China
| | - Chao-Yang Zhu
- Department of Nephrology, Huaihe Hospital of Henan University, Kaifeng, China
| | - Ya-Li Ma
- Department of Nephrology, Huaihe Hospital of Henan University, Kaifeng, China
| | - Yang Li
- Department of Urology, Huaihe Hospital of Henan University, Kaifeng, China
| | - Jun Shi
- Department of Nephrology, Huaihe Hospital of Henan University, Kaifeng, China
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Coellar JD, Long J, Danesh FR. Long Noncoding RNAs and Their Therapeutic Promise in Diabetic Nephropathy. Nephron Clin Pract 2021; 145:404-414. [PMID: 33853077 PMCID: PMC8266727 DOI: 10.1159/000515422] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 02/19/2021] [Indexed: 12/21/2022] Open
Abstract
Recent advances in large-scale RNA sequencing and genome-wide profiling projects have unraveled a heterogeneous group of RNAs, collectively known as long noncoding RNAs (lncRNAs), which play central roles in many diverse biological processes. Importantly, an association between aberrant expression of lncRNAs and diverse human pathologies has been reported, including in a variety of kidney diseases. These observations have raised the possibility that lncRNAs may represent unexploited potential therapeutic targets for kidney diseases. Several important questions regarding the functionality of lncRNAs and their impact in kidney diseases, however, remain to be carefully addressed. Here, we provide an overview of the main functions and mechanisms of actions of lncRNAs, and their promise as therapeutic targets in kidney diseases, emphasizing on the role of some of the best-characterized lncRNAs implicated in the pathogenesis and progression of diabetic nephropathy.
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Affiliation(s)
- Juan D. Coellar
- Section of Nephrology, Division of Internal Medicine, The University of Texas at MD Anderson Cancer Center, Houston, TX 77030
| | - Jianyin Long
- Department of Pharmacology & Chemical Biology, Baylor College of Medicine, Houston, TX 77030
| | - Farhad R. Danesh
- Section of Nephrology, Division of Internal Medicine, The University of Texas at MD Anderson Cancer Center, Houston, TX 77030
- Department of Pharmacology & Chemical Biology, Baylor College of Medicine, Houston, TX 77030
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Qian J, Fu P, Li S, Li X, Chen Y, Lin Z. miR-107 affects cartilage matrix degradation in the pathogenesis of knee osteoarthritis by regulating caspase-1. J Orthop Surg Res 2021; 16:40. [PMID: 33430857 PMCID: PMC7798341 DOI: 10.1186/s13018-020-02121-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 11/24/2020] [Indexed: 12/22/2022] Open
Abstract
Background Knee osteoarthritis (KOA) seriously affects the quality of life of KOA patients. This study aimed to investigate whether miR-107 could regulate KOA through pyroptosis to affect collagen protein secreted by chondrocytes through IL-1β. Methods The proliferation of chondrocytes was detected by CCK-8 assay. RT-qPCR analysis was used to identify miR-107 expression and transfection effects. The expression of Col II, IL-1β, IL-18, and MMP13 in supernatant of chondrocytes or chondrocytes was detected by ELISA assay and western blot analysis. The pyroptosis of chondrocytes was analyzed by TUNEL assay and the expression of pyroptosis-related proteins was analyzed by western blot. Luciferase reporter assay confirmed the relation of miR-107 to caspase-1. Results The proliferation of chondrocytes was decreased after LPS induction and further decreased by treatment of ATP. Single LPS treatment for chondrocytes downregulated the Col II expression while upregulated the expression of IL-1β, IL-18, and MMP-13, which was further changed by ATP treatment. miR-107 expression was decreased in chondrocytes induced by LPS and further decreased in chondrocytes induced by LPS and ATP. In addition, miR-107 overexpression increased the proliferation and decreased the pyroptosis of chondrocytes induced by LPS and ATP. miR-107 overexpression upregulated the Col II expression while down-regulated the expression of IL-1β, IL-18, and MMP-13 in supernatant of chondrocytes or chondrocytes induced by LPS and ATP. miR-107 overexpression down-regulated the expression of caspase-1, c-caspase-1, GSDMD-N, and TLR4 in chondrocytes induced by LPS and ATP. Furthermore, miR-107 directly targeted caspase-1. Conclusions miR-107 can protect against KOA by downregulating caspase-1 to decrease pyroptosis, thereby promoting collagen protein secreted by chondrocytes by down-regulating IL-1β.
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Affiliation(s)
- Jiatian Qian
- Joint Divison of Orthopedic Department, Changzheng Hospital, Shanghai, 200003, China
| | - Peiliang Fu
- Joint Divison of Orthopedic Department, Changzheng Hospital, Shanghai, 200003, China
| | - Shiao Li
- Joint Divison of Orthopedic Department, Changzheng Hospital, Shanghai, 200003, China
| | - Xiang Li
- Joint Divison of Orthopedic Department, Changzheng Hospital, Shanghai, 200003, China
| | - Yancheng Chen
- Joint Divison of Orthopedic Department, Changzheng Hospital, Shanghai, 200003, China
| | - Zhenen Lin
- Department of Orthopaedics, Fuzhou Second Hospital Affiliated to Xiamen University, No. 47 Shangteng Road, Cangshan District, Fu Zhou, 350007, Fujian, China.
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10
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Lin X, Li J, Tan R, Zhong X, Yang J, Wang L. Identification of Hub Genes Associated with the Development of Acute Kidney Injury by Weighted Gene Co-Expression Network Analysis. Kidney Blood Press Res 2021; 46:63-73. [PMID: 33401265 DOI: 10.1159/000511661] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 09/17/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Acute kidney injury (AKI) is a severe clinical syndrome, causing a profound medical and socioeconomic burden worldwide. This study aimed to explore underlying molecular targets related to the progression of AKI. METHODS A public database originated from the NCBI GEO database (serial number: GSE121190) and a well-established and unbiased method of weighted gene co-expression network analysis (WGCNA) to identify hub genes and potential pathways were used. Furthermore, the unbiased hub genes were validated in 2 classic models of AKI in a rodent model: chemically established AKI by cisplatin- and ischemia reperfusion-induced AKI. RESULTS A total of 17 modules were finally obtained by the unbiased method of WGCNA, where the genes in turquoise module displayed strong correlation with the development of AKI. In addition, the results of gene ontology revealed that the genes in turquoise module were involved in renal injury and renal fibrosis. Thus, the hub genes were further validated by experimental methods and primarily obtained Rplp1 and Lgals1 as key candidate genes related to the progression of AKI by the advantage of quantitative PCR, Western blotting, and in situ tissue fluorescence. Importantly, the expression of Rplp1 and Lgals1 at the protein level showed positive correlation with renal function, including serum Cr and BUN. CONCLUSIONS By the advantage of unbiased bioinformatic method and consequent experimental verification, this study lays the foundation basis for the pathogenesis and therapeutic agent development of AKI.
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Affiliation(s)
- Xiao Lin
- Laboratory of Organ Fibrosis Prophylaxis and Treatment by Combine Traditional Chinese and Western Medicine, Research Center of Integrated Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Jianchun Li
- Laboratory of Organ Fibrosis Prophylaxis and Treatment by Combine Traditional Chinese and Western Medicine, Research Center of Integrated Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Ruizhi Tan
- Laboratory of Organ Fibrosis Prophylaxis and Treatment by Combine Traditional Chinese and Western Medicine, Research Center of Integrated Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Xia Zhong
- Laboratory of Organ Fibrosis Prophylaxis and Treatment by Combine Traditional Chinese and Western Medicine, Research Center of Integrated Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Jieke Yang
- Laboratory of Organ Fibrosis Prophylaxis and Treatment by Combine Traditional Chinese and Western Medicine, Research Center of Integrated Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China
| | - Li Wang
- Laboratory of Organ Fibrosis Prophylaxis and Treatment by Combine Traditional Chinese and Western Medicine, Research Center of Integrated Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, China,
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Zuo Y, Chen L, He X, Ye Z, Li L, Liu Z, Zhou S. Atorvastatin Regulates MALAT1/miR-200c/NRF2 Activity to Protect Against Podocyte Pyroptosis Induced by High Glucose. Diabetes Metab Syndr Obes 2021; 14:1631-1645. [PMID: 33880049 PMCID: PMC8053520 DOI: 10.2147/dmso.s298950] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 03/18/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Diabetic nephropathy (DN) is one of the main complications of diabetes mellitus (DM), which leads to the long-term loss of kidney functions. Long noncoding RNAs (LncRNAs) can alleviate DN by interacting with microRNAs (miRNAs). In this work, we aimed to explore the effects of the MALAT1/miR-200c/NRF2 regulatory axis on the pyroptosis and oxidative stress (Oxidative stress, OS) of renal podocytes in high glucose (HG) environment and whether the lipid-lowering drug atorvastatin (AT) can relieve renal OS through this approach. METHODS MPC-5, a mouse podocyte cell line, was induced by HG as a cell model. The protein expressions of caspase-1, GSDMD, NLRP3, NRF2, etc. were detected by Western blotting and immunofluorescence, and the mRNA level of caspase-1, GSDMD, NLRP3, NRF2, MALAT1, miR-200c was tested by qRT-PCR. The cell pyroptosis of podocytes treated with AT was verified by CCK-8 or flow cytometry. The levels of Malondialdehyde (MDA), superoxide dismutase (SOD), and glutathione (GSH) were measured by spectrophotometer, respectively. RESULTS The caspase-1 was upregulated in time-dependent manner and got the peak at 48 h and 30 mmol/L respectively in MPC-5 cells treated with HG. Further, the expression of GSDMD, MALAT1 and miR-200c were increased, while the level of NRF2, HO-1, OS-related indicators, were decreased simultaneously. Knockdown the MALAT1 protected MPC-5 cells from pyroptosis and OS induced by HG. However, overexpressing miR-200c in control-group cells increased pyroptosis and upregulated the OS level with HG culture medium. Further, atorvastatin protected MPC-5 cells from cell pyroptosis and downregulated the level of renal OS via attenuating the expression of MALAT1 and miR-200c. CONCLUSION Atorvastatin protects podocyte cells via MALAT1/miR-200c/NRF2 signal pathway from pyroptosis and OS induced by HG.
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Affiliation(s)
- Yi Zuo
- Department of Endocrinology, Affiliated Hospital of Guilin Medical University, Guilin, 541001, People’s Republic of China
| | - Li Chen
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin, Guangxi, 541004, People’s Republic of China
| | - Xiaoyun He
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, 410008, People’s Republic of China
| | - Zhen Ye
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin, Guangxi, 541004, People’s Republic of China
| | - Ling Li
- Department of Endocrinology, Affiliated Hospital of Guilin Medical University, Guilin, 541001, People’s Republic of China
| | - Zhanhong Liu
- Department of Endocrinology, Affiliated Hospital of Guilin Medical University, Guilin, 541001, People’s Republic of China
| | - Suxian Zhou
- Department of Endocrinology, Affiliated Hospital of Guilin Medical University, Guilin, 541001, People’s Republic of China
- Correspondence: Suxian Zhou Department of Endocrinology, Affiliated Hospital of Guilin Medical University, 15 Lequn Road, Guilin, Guangxi, 541001, People’s Republic of China Email
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12
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Wang J, Zhao SM. LncRNA-antisense non-coding RNA in the INK4 locus promotes pyroptosis via miR-497/thioredoxin-interacting protein axis in diabetic nephropathy. Life Sci 2020; 264:118728. [PMID: 33160992 DOI: 10.1016/j.lfs.2020.118728] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/02/2020] [Accepted: 11/04/2020] [Indexed: 02/09/2023]
Abstract
AIMS Diabetic nephropathy (DN) is the most frequent complication of diabetes and causes millions of deaths each year. Finding novel therapy to DN is urgent, which requires a good understanding of the pathogenesis. Aims are to investigate the molecular mechanisms of DN by focusing on ANRIL/miR-497/TXNIP axis. MAIN METHODS Kidney tissues were collected from diagnosed DN patients. High glucose (HG) treatment of human renal tubular epithelial cell cells (HK-2) was used as the cell model of DN. qRT-PCR and Western blotting were performed to measure levels of ANRIL, miR-497, TXNIP, IL-1β, IL-18, caspase-1, and NLRP3. LDH leakage and cell viability were determined with commercial LDH activity kit and MTT assay. ELISA was employed to examine secreted IL-1β and IL-18 levels. Flow cytometry was used to examine caspase-1 activity. Dual luciferase assay was performed to validate interactions of ANRIL/miR-497 and miR-497/TXNIP. KEY FINDINGS ANRIL and TXNIP were elevated in DN kidney tissues and HG-treated HK-2 cells while miR-497 was reduced. ANRIL bound miR-497 while miR-497 directly targeted TXNIP. Knockdown of ANRIL suppressed HG-induced LDH leakage, TXNIP/NLRP3/caspase-1 activation, and increases of IL-1β and IL-18 secreted levels. miR-497 knockdown or TXNIP overexpression reversed the effects of ANRIL knockdown on LDH leakage and pyroptosis-related signaling. miR-497 mimics inhibited caspase-1-dependent pyroptosis while co-overexpression of TXNIP blocked its effects in HG-treated HK-2 cells. SIGNIFICANCE ANRIL promotes pyroptosis and kidney injury in DN via acting as miR-497 sponge to disinhibit TXNIP expression. These results shed light on the mechanisms of DN and provide targets for therapy development.
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Affiliation(s)
- Jia Wang
- Renal Division, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, PR China.
| | - Su-Mei Zhao
- Renal Division, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, PR China
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13
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Wang M, Wang L, Pu L, Li K, Feng T, Zheng P, Li S, Sun M, Yao Y, Jin L. LncRNAs related key pathways and genes in ischemic stroke by weighted gene co-expression network analysis (WGCNA). Genomics 2020; 112:2302-2308. [DOI: 10.1016/j.ygeno.2020.01.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/09/2019] [Accepted: 01/06/2020] [Indexed: 12/13/2022]
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14
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Xie C, Wu W, Tang A, Luo N, Tan Y. lncRNA GAS5/miR-452-5p Reduces Oxidative Stress and Pyroptosis of High-Glucose-Stimulated Renal Tubular Cells. Diabetes Metab Syndr Obes 2019; 12:2609-2617. [PMID: 31849505 PMCID: PMC6910862 DOI: 10.2147/dmso.s228654] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 11/07/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Diabetic nephropathy (DN) is the leading cause of end-stage renal failure worldwide. lncRNAs are demonstrated to improve the DN by changing the expression of miRNAs. This study was aimed to investigate the effect of lncRNA GAS5/miR-452-5p on the inflammation, oxidative stress and pyroptosis of high-glucose-induced renal tubular cells. METHODS HK-2 cells were induced by HG to simulate DN cells. RT-qPCR analysis confirmed the transfection effects and detected the expression of GAS5, NLRP3, caspase1, IL-1β, pro-caspase1, pro-IL-1β, GSDMD-N and miR-452-5p. Western blot analysis determined the protein expression of NLRP3, caspase1, IL-1β, pro-caspase1, pro-IL-1β and GSDMD-N. The expression of GSDMD-N was also verified by immunofluorescence. The levels of TNF-α, IL-6, MCP-1, ROS, MDA and SOD were measured by commercial assay kits, respectively. Dual-luciferase reporter assay indicated that GAS5 could combine with miR-452-5p. RESULTS GAS5 expression was decreased in HG-induced HK-2 cells. GAS5 overexpression could decrease the levels of TNF-α, IL-6, MCP-1, ROS and MDA and increase the levels of SOD. Moreover, GAS5 overexpression suppressed the expression of NLRP3, caspase1, IL-1β and GSDMD-N, and the results of immunofluorescence verified the above results. miR-452-5p interference could cause the same changes as GAS5 overexpression for HG-induced HK-2 cells, and GAS5 inhibition could reverse the effect of miR-452-5p interference. CONCLUSION GAS5 overexpression inhibited the inflammation, oxidative stress and pyroptosis of HG-induced renal tubular cells by downregulating the expression of miR-452-5p.
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Affiliation(s)
- Cuisong Xie
- Department of Endocrinology, Chenzhou No.1 People’s Hospital, Chenzhou, Hunan423000, People’s Republic of China
| | - Weiling Wu
- Department of Endocrinology, Chenzhou No.1 People’s Hospital, Chenzhou, Hunan423000, People’s Republic of China
| | - Ainan Tang
- Department of Endocrinology, Chenzhou 3rd People’s Hospital, Chenzhou, Hunan423000, People’s Republic of China
| | - Ning Luo
- Department of Endocrinology, Chenzhou No.1 People’s Hospital, Chenzhou, Hunan423000, People’s Republic of China
| | - Yanfei Tan
- Department of Endocrinology, Chenzhou No.1 People’s Hospital, Chenzhou, Hunan423000, People’s Republic of China
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Yang J, Shen Y, Yang X, Long Y, Chen S, Lin X, Dong R, Yuan J. Silencing of long noncoding RNA XIST protects against renal interstitial fibrosis in diabetic nephropathy via microRNA-93-5p-mediated inhibition of CDKN1A. Am J Physiol Renal Physiol 2019; 317:F1350-F1358. [PMID: 31545928 DOI: 10.1152/ajprenal.00254.2019] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) have been reported to play an important role in diabetic nephropathy (DN). However, the molecular mechanism involved in this process remains poorly understood. Thus, the present study aimed to explore the function and molecular mechanism of dysregulated lncRNA X-inactive specific transcript (XIST) in DN. DN mouse models were established by streptozotocin treatment, and human renal tubular epithelial HK-2 cells were exposed to high glucose to produce an in vitro model. XIST was highly expressed in renal tissues of patients with DN, mice with DN, and high glucose-exposed HK-2 cells. To identify the interaction among XIST, miR-93-5p, and cyclin-dependent kinase inhibitor 1A (CDKN1A) and to analyze the functional significance of their interaction in renal interstitial fibrosis, we altered endogenous expression of XIST and miR-93-5p and CDKN1A. Dual-luciferase reporter assay results suggested that XIST was highly expressed in the kidney tissue of DN mice and high glucose-exposed HK-2 cells. XIST was identified to be a lncRNA that could bind to miR-93-5p, and CDKN1A was a target of miR-93-5p. Downregulated expression of XIST led to an increase in miR-93-5p expression, thereby decreasing CDKN1A and suppressing renal interstitial fibrosis in DN. Consistently, XIST knockdown reduced the expression of fibrosis markers (fibronectin, collagen type IV, and transforming growth factor-β1). Restoration of CDKN1A or decreasing miR-93-5p yielded a reversed effect on renal interstitial fibrosis. In conclusion, our study demonstrated that silenced XIST inducing miR-93-5p-dependent CDKN1A inhibition was beneficial for preventing renal interstitial fibrosis in DN, which may provide a future strategy to prevent the progression of DN.
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Affiliation(s)
- Jindou Yang
- Department of Nephrology, Guizhou Provincial People's Hospital, Guiyang, People's Republic of China
| | - Yan Shen
- Department of Nephrology, Guizhou Provincial People's Hospital, Guiyang, People's Republic of China
| | - Xia Yang
- Department of Nephrology, Guizhou Provincial People's Hospital, Guiyang, People's Republic of China
| | - Yanjun Long
- Department of Nephrology, Guizhou Provincial People's Hospital, Guiyang, People's Republic of China
| | - Shuang Chen
- Department of Nephrology, Guizhou Provincial People's Hospital, Guiyang, People's Republic of China
| | - Xin Lin
- Department of Nephrology, Guizhou Provincial People's Hospital, Guiyang, People's Republic of China
| | - Rong Dong
- Department of Nephrology, Guizhou Provincial People's Hospital, Guiyang, People's Republic of China
| | - Jing Yuan
- Department of Nephrology, Guizhou Provincial People's Hospital, Guiyang, People's Republic of China
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Long Non-Coding RNAs in Kidney Disease. Int J Mol Sci 2019; 20:ijms20133276. [PMID: 31277300 PMCID: PMC6650856 DOI: 10.3390/ijms20133276] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 06/30/2019] [Accepted: 07/01/2019] [Indexed: 02/01/2023] Open
Abstract
Non-coding RNA species contribute more than 90% of all transcripts and have gained increasing attention in the last decade. One of the most recent members of this group are long non-coding RNAs (lncRNAs) which are characterized by a length of more than 200 nucleotides and a lack of coding potential. However, in contrast to this simple definition, lncRNAs are heterogenous regarding their molecular function—including the modulation of small RNA and protein function, guidance of epigenetic modifications and a role as enhancer RNAs. Furthermore, they show a highly tissue-specific expression pattern. These aspects already point towards an important role in cellular biology and imply lncRNAs as players in development, health and disease. This view has been confirmed by numerous publications from different fields in the last years and has raised the question as to whether lncRNAs may be future therapeutic targets in human disease. Here, we provide a concise overview of the current knowledge on lncRNAs in both glomerular and tubulointerstitial kidney disease.
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