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Xie S, Su J, Lu A, Lai Y, Mo S, Pu M, Yang T. Soluble (pro)renin receptor promotes the fibrotic response in renal proximal tubule epithelial cells in vitro via the Akt/β-catenin/Snail signaling pathway. Am J Physiol Renal Physiol 2020; 319:F941-F953. [PMID: 32865015 DOI: 10.1152/ajprenal.00197.2020] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Tubulointerstitial fibrosis has been regarded as a critical event in the pathogenesis of chronic kidney disease. The soluble form of (pro)renin receptor (sPRR), generated by site-1 protease (S1P) cleavage of full-length PRR, can be detected in biological fluid and elevated under certain pathological conditions. The present study was designed to evaluate the potential role of sPRR in the regulation of the fibrotic response in a cultured human renal proximal tubular cell line (HK-2 cells) in the setting of transforming growth factor (TGF)-β or sPRR-His treatment. The TGF-β-induced fibrotic response of HK-2 cells was indicated by upregulation of fibronectin (FN) expression; meanwhile, TGF-β could also induce the generation of sPRR, due to enhanced cleavage of full-length PRR. To explore the role of sPRR in the fibrotic response of HK-2 cells, we blocked the production of sPRR with a the S1P inhibitor PF429242 and found that PF429242 remarkably suppressed TGF-β-induced sPRR generation and FN expression in HK-2 cells. Administration of sPRR-His restored the PF429242-attenuated FN expression in HK-2 cells, indicating that sPRR could promote the TGF-β-induced fibrotic response. Furthermore, sPRR-His alone also increased the abundance of FN in HK-2 cells. These data suggested that sPRR was sufficient and necessary for the TGF-β-induced fibrotic response of HK-2 cells. Mechanistically, sPRR activated the AKT and β-catenin pathway in HK-2 cells, and blockade of the AKT or β-catenin pathway significantly abrogated sPRR-induced FN and Snail expression. Taking together, sPRR promoted the fibrotic response of HK-2 cells by activating Akt/β-catenin/Snail signaling, and it may serve as a potential therapeutic target in renal fibrosis.
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Affiliation(s)
- Shiying Xie
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah
| | - Jiahui Su
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Aihua Lu
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Ying Lai
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Shiqi Mo
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Min Pu
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Tianxin Yang
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Department of Internal Medicine, University of Utah and Veterans Affairs Medical Center, Salt Lake City, Utah.,The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Chen H, Fan Y, Jing H, Tang S, Zhou J. Emerging role of lncRNAs in renal fibrosis. Arch Biochem Biophys 2020; 692:108530. [PMID: 32768395 DOI: 10.1016/j.abb.2020.108530] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 07/23/2020] [Accepted: 07/29/2020] [Indexed: 02/07/2023]
Abstract
Fibrosis is the final common pathological feature of a wide variety of chronic kidney disease (CKD). However, an understanding of the mechanisms underlying the development of renal fibrosis remains challenging and controversial. As the current focus of molecular research, noncoding RNAs (ncRNAs), mainly microRNAs (miRNAs), long noncoding RNAs (lncRNAs) and circular noncoding RNAs (circRNAs), have powerful and abundant biological functions, which essentially makes them mediators of the physiological and pathological processes of various system diseases. The role of ncRNAs in renal fibrosis has also received great attention in recent years, but most research has mainly focused on miRNAs. In fact, although a large number of studies of lncRNAs have emerged recently, the role these molecules play in renal fibrosis haven't been fully understood till now. Thus, this review discusses the discovery of lncRNAs and their biological functions in different types of renal fibrosis, as well as the imminent applications of these findings in clinical use. Undoubtedly, in the future, further understanding of the function of all types of lncRNAs will reveal large breakthroughs in the treatment of renal fibrosis.
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Affiliation(s)
- Hongtao Chen
- Department of Anesthesiology, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong Province, 510060, China
| | - Youling Fan
- Department of Anesthesiology, Panyu Central Hospital, Guangzhou, Guangdong Province, 511400, China
| | - Huan Jing
- Department of Anesthesiology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510630, China
| | - Simin Tang
- Department of Anesthesiology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510630, China
| | - Jun Zhou
- Department of Anesthesiology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510630, China.
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Lin Y, Zhong L, Li H, Xu Y, Li X, Zheng D. Psoralen alleviates high glucose-induced HK-2 cell injury by inhibition of Smad 2 signaling via upregulation of microRNA 874. BMC Pharmacol Toxicol 2020; 21:52. [PMID: 32698907 PMCID: PMC7376944 DOI: 10.1186/s40360-020-00434-1] [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: 03/15/2020] [Accepted: 07/16/2020] [Indexed: 12/31/2022] Open
Abstract
Background Diabetic nephropathy (DN) causes the vast proportion of excess mortality for patients with diabetes. Novel therapeutic approaches slowing down its incidence is still lacking. Psoralen is the major active ingredient of Psoralea corylifolia Linn. (PCL), which was used to treat a number of diseases. In this study, we aimed to investigate whether psoralen could alleviate DN using in vitro model. Methods Cell viability assay and immunofluorescence were used to evaluate the effect of psoralen on high glucose (HG)-stimulated human kidney HK-2 cells (48 h). RT-qPCR was used to detect the expressions of miRNA in cells. Cell transfection, apoptosis assay, inflammatory cytokines detection and Western blot were further performed to explore the underlying molecular mechanisms. Results HG-induced toxicity of HK-2 cells was alleviated by psoralen. Meanwhile, the secretion of inflammatory cytokines and extracellular matrix (ECM) accumulation induced by HG in HK-2 cells were also decreased by psoralen. In addition, the expression of miR-874 in HK-2 cells was significantly upregulated by psoralen. Western blot assays indicated that psoralen could reverse HG-induced increase of TLR-4/NF-κB and Smad2 via upregulation of miR-874. Conclusion This study demonstrated that psoralen could significantly alleviate HG-induced HK-2 cell injury via upregulation of miR-874. In addition, HG-induced increase of TLR-4/NF-κB and Smad2 was revered by psoralen. Therefore, psoralen might serve as an agent for the treatment of DN.
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Affiliation(s)
- Yongtao Lin
- Department of Nephrology, Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, 223001, PR China
| | - Lili Zhong
- Department of Nephrology, Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, 223001, PR China
| | - Hailun Li
- Department of Nephrology, Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, 223001, PR China
| | - Yong Xu
- Department of Nephrology, Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, 223001, PR China
| | - Xiang Li
- Department of Nephrology, Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, 223001, PR China
| | - Donghui Zheng
- Department of Nephrology, Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, 223001, PR China.
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54
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Liu P, Zhang B, Chen Z, He Y, Du Y, Liu Y, Chen X. m 6A-induced lncRNA MALAT1 aggravates renal fibrogenesis in obstructive nephropathy through the miR-145/FAK pathway. Aging (Albany NY) 2020; 12:5280-5299. [PMID: 32203053 PMCID: PMC7138587 DOI: 10.18632/aging.102950] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 03/09/2020] [Indexed: 01/15/2023]
Abstract
Renal fibrosis is a key factor in chronic kidney disease (CKD). Long non-coding RNAs (lncRNAs) play important roles in the physiological and pathological progression of human diseases. However, the roles and underlying mechanisms of lncRNAs in renal fibrosis still need to be discovered. In this study, we first displayed the increased lncRNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) expression in renal fibrosis in patients with obstructive nephropathy (ON). Then we found that transforming growth factor beta 1 (TGF-β1) induced epithelial-mesenchymal transition (EMT) and extracellular matrix (ECM) protein deposition, which promoted the viability, proliferation and migration of human renal proximal tubular epithelial (HK2) cells. Next, MALAT1/miR-145/focal adhesion kinase (FAK) pathway was confirmed to play an importment role in TGF-β1-induced renal fibrosis. In addition, the MALAT1/miR-145/FAK pathway was involved in the effect of dihydroartemisinin (DHA) on TGF-β1-induced renal fibrosis in vitro and in vivo. Furthermore, m6A methyltransferase methyltransferase-like 3 (METTL3) was shown to be the main methyltransferase of m6A modification on MALAT1.
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Affiliation(s)
- Peihua Liu
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, PR China
| | - Bo Zhang
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, PR China
| | - Zhi Chen
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, PR China
| | - Yao He
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, PR China
| | - Yongchao Du
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, PR China
| | - Yuhang Liu
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, PR China
| | - Xiang Chen
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, PR China
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Qin X, Zhu S, Chen Y, Chen D, Tu W, Zou H. Long Non-Coding RNA (LncRNA) CASC15 Is Upregulated in Diabetes-Induced Chronic Renal Failure and Regulates Podocyte Apoptosis. Med Sci Monit 2020; 26:e919415. [PMID: 32053576 PMCID: PMC7034410 DOI: 10.12659/msm.919415] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND CASC15 has been recently characterized as an oncogenic lncRNA. This study aimed to investigate the role of CASC15 in diabetic patients complicated with chronic renal failure (DCRF). MATERIAL AND METHODS Levels of CASC15 in plasma derived from 3 groups of participants were measured by qPCR and compared by ANOVA and Tukey test. The interaction between CASC15 and miR-34c was analyzed by performing cell transfections. Cell apoptosis assay was performed to analyze the effects of transfections on the apoptosis of CIHP-1 cells (podocytes). RESULTS We found that CASC15 in plasma was upregulated in DCRF compared with diabetic patients (no obvious complications) and healthy controls. Upregulation of CASC15 distinguished DCRF patients from healthy controls and diabetic patients. High D-glucose environment induced the upregulation of CASC15 in cells of the human podocyte cell line CIHP-1. Overexpression of CASC15 did not affect miR-34c in CIHP-1 cells, but bioinformatics analysis showed that CASC15 can sponge miR-34c. Overexpression of CASC15 led to an increased apoptotic rate of CIHP-1 cells, and miR-34c overexpression led to a decreased apoptotic rate of CIHP-1 cells. In addition, CASC15 overexpression attenuated the effects of miR-34c overexpression on cell apoptosis. CONCLUSIONS Therefore, CASC15 is upregulated in DCRF patients and promotes the apoptosis of podocytes by sponging miR-34c. Our study adds to our understanding of the pathogenesis of DCRF and suggests that CASC15 could serve as a potential therapeutic target of DCRF.
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Affiliation(s)
- Xiaohua Qin
- Department of Nephrology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Shuying Zhu
- Department of Nephrology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Yanxia Chen
- Department of Nephrology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Dan Chen
- Department of Nephrology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Weiping Tu
- Department of Nephrology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Hongchang Zou
- Department of Nephrology, Second Affiliated Hospital of Nanchang Universityy, Nanchang, Jiangxi, China (mainland)
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Yang J, Tao Q, Zhou Y, Chen Q, Li L, Hu S, Liu Y, Zhang Y, Shu J, Zhang X, Zhang L, Zhang L. MicroRNA-708 represses hepatic stellate cells activation and proliferation by targeting ZEB1 through Wnt/β-catenin pathway. Eur J Pharmacol 2020; 871:172927. [PMID: 31962101 DOI: 10.1016/j.ejphar.2020.172927] [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: 10/26/2019] [Revised: 01/12/2020] [Accepted: 01/13/2020] [Indexed: 02/06/2023]
Abstract
Liver fibrosis is caused by a sustained wound healing response to chronic liver injury, and the activation of insubstantial hepatic stellate cells (HSCs) is the key process involved. The progression of liver fibrosis may be attenuated by suppressing activation and proliferation of the HSCs. MicroRNA (miRNA) have emerged as major players in governing fundamental biological processes through multiple mechanisms MiR-708 is known to inhibit the development of hepatocellular carcinoma. However, whether miR-708 can function as a transcriptional regulator in liver fibrosis remains unclear. Our study demonstrated that miR-708 expression was inhibited in fibrotic liver tissues and in activated HSCs, accompanied by an increase of the Zinc finger E-box binding homeobox 1 (ZEB1) level. Besides, overexpression of miR-708 and silencing of ZEB1 inhibited the activation and proliferation of LX-2 cells. While knockdown of miR-708 or overexpression of ZEB1 showed reversed results. Further, dual luciferase reporter assays showed that miR-708 directly targeted ZEB1 in vitro. Interestingly, ZEB1 was found to be involved in HSCs by regulating Wnt/β-catenin signaling pathway. Together, our data showed that miR-708 may be a potential therapeutic target in liver fibrosis therapy.
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Affiliation(s)
- Junfa Yang
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; School of Pharmacy, Anhui Medical University, Hefei, 230032, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, 230032, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, 230032, China
| | - Qing Tao
- Department of Pathogen Biology, Anhui Medical University, China
| | - Yiwen Zhou
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, 230032, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, 230032, China
| | - Qingfeng Chen
- Clinic Medical College of Anhui Medical University, Hefei, 230032, China
| | - Liangyun Li
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, 230032, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, 230032, China
| | - Shuang Hu
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, 230032, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, 230032, China
| | - Yumin Liu
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, 230032, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, 230032, China
| | - Yu Zhang
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China
| | - Jinling Shu
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China
| | - Xianzheng Zhang
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China
| | - Lei Zhang
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, 230032, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, Hefei, 230032, China.
| | - Lingling Zhang
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China.
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Meng Q, Zhai X, Yuan Y, Ji Q, Zhang P. lncRNA ZEB1-AS1 inhibits high glucose-induced EMT and fibrogenesis by regulating the miR-216a-5p/BMP7 axis in diabetic nephropathy. Braz J Med Biol Res 2020; 53:e9288. [PMID: 32294702 PMCID: PMC7162581 DOI: 10.1590/1414-431x20209288] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 01/06/2020] [Indexed: 02/08/2023] Open
Abstract
Diabetic nephropathy (DN) is one of the leading causes of mortality in diabetic patients. Long non-coding RNA zinc finger E-box binding homeobox 1 antisense 1 (ZEB1-AS1) plays a crucial role in the development of various diseases, including DN. However, the molecular mechanism of ZEB1-AS1 in DN pathogenesis remains elusive. An in vitro DN model was established by treating HK-2 cells with high glucose (HG). Quantitative polymerase chain reaction (qRT-PCR) was utilized to detect the expression levels of ZEB1-AS1, microRNA-216a-5p (miR-216a-5p), and bone morphogenetic protein 7 (BMP7). Western blot assay was used to evaluate the protein levels of BMP7, epithelial-to-mesenchymal transition (EMT)-related proteins, and fibrosis markers. Additionally, the interaction among ZEB1-AS1, miR-216a-5p, and BMP7 was predicted by MiRcode (http://www.mircode.org) and starBase 2.0 (omics_06102, omicX), and confirmed by luciferase reporter assay. ZEB1-AS1 and BMP7 were down-regulated, while miR-216a-5p was highly expressed in kidney tissues of DN patients. Consistently, HG treatment decreased the levels of ZEB1-AS1 and BMP7, whereas HG increased miR-216a-5p expression in HK-2 cells in a time-dependent manner. ZEB1-AS1 upregulation inhibited HG-induced EMT and fibrogenesis. Furthermore, ZEB1-AS1 directly targeted miR-216a-5p, and overexpression of miR-216a-5p restored the inhibitory effects of ZEB1-AS1 overexpression on EMT and fibrogenesis. BMP7 was negatively targeted by miR-216a-5p. In addition, ZEB1-AS1 suppressed HG-induced EMT and fibrogenesis by regulating miR-216a-5p and BMP-7. lncRNA ZEB1-AS1 inhibited high glucose-induced EMT and fibrogenesis via regulating miR-216a-5p/BMP7 axis in diabetic nephropathy, providing a potential target for DN therapy.
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Affiliation(s)
- Qingqing Meng
- Department of Nephrology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
| | - Xiaolin Zhai
- Department of Nephrology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
| | - Yi Yuan
- Department of Nephrology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
| | - Qing Ji
- Department of Nephrology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
| | - Pengyuan Zhang
- Department of Nephrology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, 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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Liu Y, Li L, Yi B, Hu ZX, Li AM, Yang C, Zheng L, Zhang H. Activation of vitamin D receptor attenuates high glucose-induced cellular injury partially dependent on CYP2J5 in murine renal tubule epithelial cell. Life Sci 2019; 234:116755. [PMID: 31415769 DOI: 10.1016/j.lfs.2019.116755] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 08/04/2019] [Accepted: 08/12/2019] [Indexed: 01/07/2023]
Abstract
AIMS Vitamin D and its receptor, vitamin D receptor (VDR), have renoprotection effect against diabetic nephropathy (DN). But the exact mechanism has not been fully elucidated. Epoxyeicosatrienoic acids (EETs) are cytochrome P450 (CYP) epoxygenase-derived metabolites of arachidonic acid, protecting against diabetes and DN. Herein, we hypothesized that activation of VDR attenuated high glucose-induced cellular injury in renal tubular epithelial cells partially through up-regulating CYP2J5 expression. MAIN METHODS Streptozotocin (STZ) was injected to induce diabetic in wild type and Vdr-/- mice. The effects of VDR knockout and an activator of VDR, paricalcitol, on the renal injury were detected. In vitro, a murine kidney proximal tubule epithelial cell line BU.MPT induced by high glucose were treated with or without paricalcitol (30 mM) for 12 h or 24 h. KEY FINDINGS The expression of CYP2J5 was significantly decreased both in wild type and Vdr-/- diabetic mice induced by STZ. The STZ-induced kidney architecture damage and apoptosis rate in Vdr-/- mice were more severe. In vitro, high glucose treatment strongly reduced the CYP2J5 expression and the synthesis of 14,15-EET in BU.MPT cells. Supplement of 14,15-EET significantly reduced the lactate dehydrogenase (LDH) release induced by high glucose in BU.MPT cells. Furthermore, treatment with paricalcitol attenuated cellular injury and restored the expression of CYP2J5 reduced by high glucose in BU.MPT cells. SIGNIFICANCE We conclude that activation of VDR attenuates high glucose-induced cellular injury partially dependent on CYP2J5 in murine renal tubule epithelial cells and paricalcitol may represent a potential therapy for DN.
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Affiliation(s)
- Yan Liu
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Liu Li
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Bin Yi
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Zhao-Xin Hu
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Ai-Mei Li
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Cheng Yang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Li Zheng
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Hao Zhang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China.
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Ge Y, Wang J, Wu D, Zhou Y, Qiu S, Chen J, Zhu X, Xiang X, Li H, Zhang D. lncRNA NR_038323 Suppresses Renal Fibrosis in Diabetic Nephropathy by Targeting the miR-324-3p/DUSP1 Axis. MOLECULAR THERAPY-NUCLEIC ACIDS 2019; 17:741-753. [PMID: 31430717 PMCID: PMC6709345 DOI: 10.1016/j.omtn.2019.07.007] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 06/21/2019] [Accepted: 07/10/2019] [Indexed: 12/19/2022]
Abstract
Several studies have suggested that long intergenic noncoding RNAs are involved in the progression of diabetic nephropathy (DN). However, the exact role and regulatory mechanism of long noncoding RNA (lncRNA) NR_038323 in diabetic nephropathy (DN) remain largely unclear. In the present study, we found that lncRNA NR_038323 overexpression ameliorated the high glucose (HG)-induced expression levels of collagen I, collagen IV, and fibronectin, whereas lncRNA NR_038323 knockdown exerted the opposite effects. Moreover, the results of bioinformatic prediction, luciferase assay, and fluorescence in situ hybridization (FISH) demonstrated that lncRNA NR_038323 directly interacted with miR-324-3p. Additionally, miR-324-3p mimic aggravated the HG-induced expression levels of collagen I, collagen IV, and fibronectin by dual-specificity protein phosphatase-1 (DUSP1) expression to activate p38 mitogen-activated protein kinase (MAPK) and ERK1/2 pathways. In contrast, overexpression of DUSP1 attenuated the HG-induced expression levels of collagen I, collagen IV, and fibronectin via inactivation of p38 MAPK and ERK1/2 pathways. In addition, lncRNA NR_038323 knockdown increased the expression levels of collagen I, collagen IV, and fibronectin by upregulating DUSP1 expression during HG treatment, which were markedly reversed by miR-324-3p inhibitor. Furthermore, these molecular changes were verified in the human kidney samples of DN patients. Finally, overexpression of lncRNA NR_038323 ameliorated the interstitial fibrosis in STZ-induced diabetic nephrology (DN) rat via miR-324-3p/DUSP1/p38MAPK and ERK1/2 axis. In conclusion, our data indicate that overexpression of lncRNA NR_038323 may suppress HG-induced renal fibrosis via the miR-324-3p/DUSP1/p38MAPK and ERK1/2 axis, which provides new insights into the pathogenesis of DN.
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Affiliation(s)
- Yanni Ge
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China; Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Juan Wang
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China; Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Dengke Wu
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Yu Zhou
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Shuangfa Qiu
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Junxiang Chen
- Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Xuejin Zhu
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Xudong Xiang
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Huiling Li
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China; Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China.
| | - Dongshan Zhang
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China; Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China.
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61
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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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Non-Coding RNAs as New Therapeutic Targets in the Context of Renal Fibrosis. Int J Mol Sci 2019; 20:ijms20081977. [PMID: 31018516 PMCID: PMC6515288 DOI: 10.3390/ijms20081977] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 04/19/2019] [Accepted: 04/20/2019] [Indexed: 12/15/2022] Open
Abstract
Fibrosis, or tissue scarring, is defined as the excessive, persistent and destructive accumulation of extracellular matrix components in response to chronic tissue injury. Renal fibrosis represents the final stage of most chronic kidney diseases and contributes to the progressive and irreversible decline in kidney function. Limited therapeutic options are available and the molecular mechanisms governing the renal fibrosis process are complex and remain poorly understood. Recently, the role of non-coding RNAs, and in particular microRNAs (miRNAs), has been described in kidney fibrosis. Seminal studies have highlighted their potential importance as new therapeutic targets and innovative diagnostic and/or prognostic biomarkers. This review will summarize recent scientific advances and will discuss potential clinical applications as well as future research directions.
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63
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Xu X, Ma C, Duan Z, Du Y, Liu C. lncRNA ZEB1-AS1 Mediates Oxidative Low-Density Lipoprotein-Mediated Endothelial Cells Injury by Post-transcriptional Stabilization of NOD2. Front Pharmacol 2019; 10:397. [PMID: 31040785 PMCID: PMC6477043 DOI: 10.3389/fphar.2019.00397] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 03/29/2019] [Indexed: 12/19/2022] Open
Abstract
Oxidized-low density lipoprotein (ox-LDL) can induce injury of endothelial cells, causing atherosclerosis, which is an important initial event in several cardiovascular diseases. Long non-coding RNAs (lncRNAs) have emerged as regulators of diverse biological processes, but their specific biological functions and biochemical mechanisms in ox-LDL-induced endothelial cell injury have not been well investigated. Here, we describe the initial functional analysis of a poorly characterized human lncRNA ZEB1 antisense 1 (ZEB1-AS1). We found that ox-LDL treatment could induce a decreased cell viability and an increased cell apoptosis in endothelial cells, and knockdown of ZEB1-AS1 significantly reversed this effect. Mechanistically, ox-LDL treatment could sequester p53 from binding to ZEB1-AS1 promoter region, causing transcriptional activation and upregulation of ZEB1-AS1. Moreover, enhanced ZEB1-AS1 could upregulate Nucleotide-Binding Oligomerization Domain 2 (NOD2) expression through recruiting leucine-rich pentatricopeptide repeat motif-containing protein (LRPPRC) to stabilize NOD2 mRNA. Experimental data showed that knockdown of NOD2 or LRPPRC dramatically abrogated the functional role of ZEB1-AS1 in ox-LDL-induced endothelial cell injury. In summary, we demonstrated that lncRNA ZEB1-AS1 regulates the ox-LDL-induced endothelial cell injury via an LRPPRC-dependent mRNA stabilization mechanism. Therefore, ZEB1-AS1 may serve as a multi-potency target to overcome endothelial cell injury, atherosclerosis and other cardiovascular diseases.
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Affiliation(s)
- Xiaohui Xu
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Congmin Ma
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Zhihui Duan
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Yanjiao Du
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Chao Liu
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
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64
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Xu L, Li X, Zhang F, Wu L, Dong Z, Zhang D. EGFR drives the progression of AKI to CKD through HIPK2 overexpression. Theranostics 2019; 9:2712-2726. [PMID: 31131063 PMCID: PMC6526000 DOI: 10.7150/thno.31424] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 02/25/2019] [Indexed: 12/30/2022] Open
Abstract
The molecular mechanism underlying the transition of acute kidney injury (AKI) to chronic kidney disease (CKD) induced by vancomycin (VAN) remains largely unknown. Methods: The mice model of VAN drives AKI to CKD was developed to investigate the role and molecular mechanism of epidermal growth factor receptor (EGFR). The EGF receptor mutant (Wa-2) mice and gefitinib were used to inactivation of EGFR. The homeodomain interacting protein kinase 2 (HIPK2) siRNA was applied to silence of HIPK2. Human proximal tubular epithelial cells (HK-2) were used to explore the molecular regulation methanism of EGFR. ChIp analysis was used to investigate if STAT3 interaction with the promoter of HIPK2. Results: A novel VAN-induced AKI mouse model was established for the first time. Moreover, the expression levels collagen I&IV, α-SMA, p-EGFR and the expression of HIPK2 proteins were upregulated in this model. Interestingly, AKI caused by VAN was markedly attenuated in waved-2 mice at the early stage, as evidenced by the suppression of renal dysfunction, renal cell apoptosis and caspase3 activation. In the latter stage, renal fibrosis and inflammation were significantly ameliorated in Wa-2 mice, accompanied by the downregulation of profibrotic molecules and F4/80. Besides, the expression levels of HIPK2 and p-STAT3 were suppressed in Wa-2 mice during VAN-induced transition of AKI to CKD. In addition, renal fibrosis and inflammation, profibrotic molecules, and EGFR/STAT3/HIPK2 signaling were ameliorated by gefitinib treatment after VAN-induced AKI. These results were consistent with the findings of Wa-2 mice. EGFR/STAT3 signaling mediated VAN-induced HIPK2 expression in HK-2 cells. ChIp analysis revealed that STAT3 directly bound to the promoter region of HIPK2. Finally, inhibition of HIPK2 attenuated the VAN drove the progression of AKI to CKD. Conclusion: These data suggest that EGFR plays an important role in VAN-driven progression of AKI to CKD.
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MESH Headings
- Actins/genetics
- Actins/metabolism
- Acute Kidney Injury/chemically induced
- Acute Kidney Injury/complications
- Acute Kidney Injury/genetics
- Acute Kidney Injury/metabolism
- Animals
- Calcium-Binding Proteins/genetics
- Calcium-Binding Proteins/metabolism
- Caspase 3/genetics
- Caspase 3/metabolism
- Cell Line
- Collagen Type I/genetics
- Collagen Type I/metabolism
- Collagen Type IV/genetics
- Collagen Type IV/metabolism
- Epithelial Cells/cytology
- Epithelial Cells/drug effects
- Epithelial Cells/metabolism
- ErbB Receptors/antagonists & inhibitors
- ErbB Receptors/genetics
- ErbB Receptors/metabolism
- Gefitinib/pharmacology
- Gene Expression Regulation
- Humans
- Kidney/drug effects
- Kidney/metabolism
- Kidney/pathology
- Male
- Mice
- Mice, Inbred C57BL
- Mutation
- Promoter Regions, Genetic
- Protein Binding
- Protein Kinase Inhibitors/pharmacology
- Protein Serine-Threonine Kinases/antagonists & inhibitors
- Protein Serine-Threonine Kinases/genetics
- Protein Serine-Threonine Kinases/metabolism
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- Receptors, G-Protein-Coupled/genetics
- Receptors, G-Protein-Coupled/metabolism
- Renal Insufficiency, Chronic/chemically induced
- Renal Insufficiency, Chronic/etiology
- Renal Insufficiency, Chronic/genetics
- Renal Insufficiency, Chronic/metabolism
- STAT3 Transcription Factor/genetics
- STAT3 Transcription Factor/metabolism
- Signal Transduction
- Vancomycin/administration & dosage
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Affiliation(s)
- Luyang Xu
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
- Emergency Medicine and Difficult Diseases Institute, Central South University, Changsha, Hunan, People's Republic of China
- Department of Emergency Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China, People's Republic of China
| | - Xiaozhou Li
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
- Emergency Medicine and Difficult Diseases Institute, Central South University, Changsha, Hunan, People's Republic of China
| | - Fei Zhang
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
- Emergency Medicine and Difficult Diseases Institute, Central South University, Changsha, Hunan, People's Republic of China
- Department of Emergency Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China, People's Republic of China
| | - Lidong Wu
- Department of Emergency Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China, People's Republic of China
| | - Zheng Dong
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
- Department of cellular Biology and anatomy, Medical college of Georgia at Georgia Regents University and Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Dongshan Zhang
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
- Emergency Medicine and Difficult Diseases Institute, Central South University, Changsha, Hunan, People's Republic of China
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65
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Liu Z, Wang Y, Shu S, Cai J, Tang C, Dong Z. Non-coding RNAs in kidney injury and repair. Am J Physiol Cell Physiol 2019; 317:C177-C188. [PMID: 30969781 DOI: 10.1152/ajpcell.00048.2019] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Acute kidney injury (AKI) is a major kidney disease featured by a rapid decline of renal function. Pathologically, AKI is characterized by tubular epithelial cell injury and death. Besides its acute consequence, AKI contributes critically to the development and progression of chronic kidney disease (CKD). After AKI, surviving tubular cells regenerate to repair. Normal repair restores tubular integrity, while maladaptive or incomplete repair results in renal fibrosis and eventually CKD. Non-coding RNAs (ncRNAs) are functional RNA molecules that are transcribed from DNA but not translated into proteins, which mainly include microRNAs (miRNAs), long non-coding RNAs (lncRNAs), circular RNAs (circRNAs), small nucleolar RNAs (snoRNAs), and tRNAs. Accumulating evidence suggests that ncRNAs play important roles in kidney injury and repair. In this review, we summarize the recent advances in the understanding of the roles of ncRNAs, especially miRNAs and lncRNAs in kidney injury and repair, discuss the potential application of ncRNAs as biomarkers of AKI as well as therapeutic targets for treating AKI and impeding AKI-CKD transition, and highlight the future research directions of ncRNAs in kidney injury and repair.
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Affiliation(s)
- Zhiwen Liu
- Department of Nephrology, The Key Laboratory of Kidney Disease and Blood Purification of Hunan Province, Second Xiangya Hospital at Central South University , Changsha , China
| | - Ying Wang
- Department of Nephrology, The Key Laboratory of Kidney Disease and Blood Purification of Hunan Province, Second Xiangya Hospital at Central South University , Changsha , China
| | - Shaoqun Shu
- Department of Nephrology, The Key Laboratory of Kidney Disease and Blood Purification of Hunan Province, Second Xiangya Hospital at Central South University , Changsha , China
| | - Juan Cai
- Department of Nephrology, The Key Laboratory of Kidney Disease and Blood Purification of Hunan Province, Second Xiangya Hospital at Central South University , Changsha , China
| | - Chengyuan Tang
- Department of Nephrology, The Key Laboratory of Kidney Disease and Blood Purification of Hunan Province, Second Xiangya Hospital at Central South University , Changsha , China
| | - Zheng Dong
- Department of Nephrology, The Key Laboratory of Kidney Disease and Blood Purification of Hunan Province, Second Xiangya Hospital at Central South University , Changsha , China.,Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University and Charlie Norwood Veterans Affairs Medical Center , Augusta, Georgia
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66
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Li Y, Ren D, Xu G. Long noncoding RNA MALAT1 mediates high glucose-induced glomerular endothelial cell injury by epigenetically inhibiting klotho via methyltransferase G9a. IUBMB Life 2019; 71:873-881. [PMID: 30762931 DOI: 10.1002/iub.2009] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 01/05/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Yebei Li
- Department of Nephrology; The Second Affiliated Hospital of Nanchang University; Nanchang China
| | - Daijin Ren
- Department of Nephrology; The Second Affiliated Hospital of Nanchang University; Nanchang China
| | - Gaosi Xu
- Department of Nephrology; The Second Affiliated Hospital of Nanchang University; Nanchang China
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67
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Qian W, Cai X, Qian Q, Peng W, Yu J, Zhang X, Tian L, Wang C. lncRNA ZEB1-AS1 promotes pulmonary fibrosis through ZEB1-mediated epithelial-mesenchymal transition by competitively binding miR-141-3p. Cell Death Dis 2019; 10:129. [PMID: 30755599 PMCID: PMC6372615 DOI: 10.1038/s41419-019-1339-1] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 12/29/2018] [Accepted: 01/07/2019] [Indexed: 12/11/2022]
Abstract
Long non-coding RNAs (lncRNAs) have been reported to be involved in various pathophysiological processes in many diseases. However, the role and mechanism of lncRNAs in pulmonary fibrosis have not been explicitly delineated. In the present study, we found that lncRNA ZEB1 antisense RNA 1 (ZEB1-AS1) is upregulated in the lungs of BLM-induced rats and TGF-β1-induced RLE-6TN cells, and positively correlated with the levels of ZEB1, an epithelial-mesenchymal transition (EMT) master regulator. Knockdown of ZEB1-AS1 alleviated BLM-induced fibrogenesis, in vivo, via inhibiting EMT progress. Mechanistically, we identified that ZEB1-AS1 promoted fibrogenesis in RLE-6TN cells and ZEB1-AS1 silencing inhibited TGF-β1-induced fibrogenesis through modulation of miR-141-3p. Further experiments revealed that ZEB1-AS1 acted as competing endogenous RNA (ceRNA) of miR-141-3p: forced expression of ZEB1-AS1 reduced the expression of miR-141-3p to activate Zinc-finger Ebox Binding Homeobox 1 (ZEB1) in RLE-6TN cells. In addition, we found that upregulation of miR-141-3p prevented fibrogenesis by targeting ZEB1. Therefore, our finding suggested lncRNA ZEB1-AS1 as a new profibrotic molecule that acts as a regulator of miR-141-3p/ZEB1 axis during lung fibrosis and demonstrated ZEB1-AS1 as a potential therapeutic target for the prevention and treatment of pulmonary fibrosis.
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Affiliation(s)
- Weibin Qian
- Department of Lung Disease, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, 250011, People's Republic of China.
| | - Xinrui Cai
- Department of Traditional Chinese Medicine, Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong, 250062, People's Republic of China.
| | - Qiuhai Qian
- Department of Endocrinology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, 250011, People's Republic of China.
| | - Wei Peng
- Department of Scientific Research, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, 250011, People's Republic of China
| | - Jie Yu
- Department of Chinese Internal Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, 250355, People's Republic of China
| | - Xinying Zhang
- Department of Endocrinology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, 250011, People's Republic of China
| | - Li Tian
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, 250355, People's Republic of China
| | - Can Wang
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, 250355, People's Republic of China
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Abstract
PURPOSE OF REVIEW Epigenetic variations have been shown to reveal vulnerability to diabetes and its complications. Although it has become clear that metabolic derangements, especially hyperglycemia, can impose a long-term metabolic memory that predisposes to diabetic complications, the underlying mechanisms remain to be understood. It has been suggested that epigenetics (e.g., histone modification, DNA methylation, and non-coding RNAs) help link metabolic disruption to aberrancies related to diabetic kidney disease (DKD). In this review, we discuss the key findings and advances made in the epigenetic risk profile of DKD and provide perspectives on the emerging topics that implicate epigenetics in DKD. RECENT FINDINGS Epigenetic profiles can be profoundly altered in patients with diabetes, in circulating blood cells as well as in renal tissues. These changes provide useful insight into the mechanisms of diabetic kidney injury and progressive kidney dysfunction. Increasing evidence supports the role of epigenetic regulation in DKD. More studies are needed to elucidate the mechanism and importance of epigenetic changes in the initiation and progression of DKD and to further explore their diagnostic and therapeutic potential in the clinical management of patients with diabetes who have a high risk for DKD.
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Affiliation(s)
- Lixia Xu
- Department of Diabetes Complications and Metabolism, Beckman Research Institute, City of Hope, 1500 E. Duarte Rd., Duarte, CA, 91010, USA
- Division of Nephrology, Guangdong Academy of Medical Science and Guangdong General Hospital, 106 Zhongshan Er Rd, Guangzhou, 510080, China
| | - Rama Natarajan
- Department of Diabetes Complications and Metabolism, Beckman Research Institute, City of Hope, 1500 E. Duarte Rd., Duarte, CA, 91010, USA
| | - Zhen Chen
- Department of Diabetes Complications and Metabolism, Beckman Research Institute, City of Hope, 1500 E. Duarte Rd., Duarte, CA, 91010, USA.
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69
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Song Y, Miao C, Wang J. LncRNA ZEB1-AS1 inhibits renal fibrosis in diabetic nephropathy by regulating the miR-217/MAFB axis. RSC Adv 2019; 9:30389-30397. [PMID: 35557748 PMCID: PMC9088285 DOI: 10.1039/c9ra05602e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Accepted: 08/20/2019] [Indexed: 12/12/2022] Open
Abstract
Diabetic nephropathy (DN) is a common chronic microvascular complication of diabetes, characterized by the deposition of extracellular matrix (ECM) proteins.
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Affiliation(s)
- Yan Song
- Department of Nephrology
- People's Hospital of Rizhao
- Rizhao
- China
| | - Chunxia Miao
- Department of Nephrology
- People's Hospital of Rizhao
- Rizhao
- China
| | - Jianwen Wang
- Department of Nephrology
- People's Hospital of Rizhao
- Rizhao
- China
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