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Hong J, Li X, Hao Y, Xu H, Yu L, Meng Z, Zhang J, Zhu M. The PRMT6/STAT1/ACSL1 axis promotes ferroptosis in diabetic nephropathy. Cell Death Differ 2024:10.1038/s41418-024-01357-8. [PMID: 39134684 DOI: 10.1038/s41418-024-01357-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 08/01/2024] [Accepted: 08/05/2024] [Indexed: 08/15/2024] Open
Abstract
Hyperglycaemia-induced ferroptosis is a significant contributor to kidney dysfunction in diabetic nephropathy (DN) patients. In addition, targeting ferroptosis has clinical implications for the treatment of DN. However, effective therapeutic targets for ferroptosis have not been identified. In this study, we aimed to explore the precise role of protein arginine methyltransferase 6 (PRMT6) in regulating ferroptosis in DN. In the present study, we utilized a mouse DN model consisting of both wild-type and PRMT6-knockout (PRMT6-/-) mice. Transcriptomic and lipidomic analyses, along with various molecular biological methodologies, were used to determine the potential mechanism by which PRMT6 regulates ferroptosis in DN. Our results indicate that PRMT6 downregulation participates in kidney dysfunction and renal cell death via the modulation of ferroptosis in DN. Moreover, PRMT6 reduction induced lipid peroxidation by upregulating acyl-CoA synthetase long-chain family member 1 (ACSL1) expression, ultimately contributing to ferroptosis. Furthermore, we investigated the molecular mechanism by which PRMT6 interacts with signal transducer and activator of transcription 1 (STAT1) to jointly regulate ACSL1 transcription. Additionally, treatment with the STAT1-specific inhibitor fludarabine delayed DN progression. Furthermore, we observed that PRMT6 and STAT1 synergistically regulate ACSL1 transcription to mediate ferroptosis in hyperglycaemic cells. Our study demonstrated that PRMT6 and STAT1 comodulate ACSL1 transcription to induce the production of phospholipid-polyunsaturated fatty acids (PL-PUFAs), thus participating in ferroptosis in DN. These findings suggest that the PRMT6/STAT1/ACSL1 axis is a new therapeutic target for the prevention and treatment of DN.
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Affiliation(s)
- Jia Hong
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xue Li
- Department of Anesthesiology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Yingxiang Hao
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hongjiao Xu
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lang Yu
- Department of Anesthesiology, Huzhou Central Hospital, Affiliated Central Hospital of HuZhou University, No.1558 Sanhuan North Road, Huzhou, Zhejiang, China
| | - Zhipeng Meng
- Department of Anesthesiology, Huzhou Central Hospital, Affiliated Central Hospital of HuZhou University, No.1558 Sanhuan North Road, Huzhou, Zhejiang, China.
| | - Jianhai Zhang
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Minmin Zhu
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Dong H, Sun Y, Nie L, Cui A, Zhao P, Leung WK, Wang Q. Metabolic memory: mechanisms and diseases. Signal Transduct Target Ther 2024; 9:38. [PMID: 38413567 PMCID: PMC10899265 DOI: 10.1038/s41392-024-01755-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/18/2024] [Accepted: 01/23/2024] [Indexed: 02/29/2024] Open
Abstract
Metabolic diseases and their complications impose health and economic burdens worldwide. Evidence from past experimental studies and clinical trials suggests our body may have the ability to remember the past metabolic environment, such as hyperglycemia or hyperlipidemia, thus leading to chronic inflammatory disorders and other diseases even after the elimination of these metabolic environments. The long-term effects of that aberrant metabolism on the body have been summarized as metabolic memory and are found to assume a crucial role in states of health and disease. Multiple molecular mechanisms collectively participate in metabolic memory management, resulting in different cellular alterations as well as tissue and organ dysfunctions, culminating in disease progression and even affecting offspring. The elucidation and expansion of the concept of metabolic memory provides more comprehensive insight into pathogenic mechanisms underlying metabolic diseases and complications and promises to be a new target in disease detection and management. Here, we retrace the history of relevant research on metabolic memory and summarize its salient characteristics. We provide a detailed discussion of the mechanisms by which metabolic memory may be involved in disease development at molecular, cellular, and organ levels, with emphasis on the impact of epigenetic modulations. Finally, we present some of the pivotal findings arguing in favor of targeting metabolic memory to develop therapeutic strategies for metabolic diseases and provide the latest reflections on the consequences of metabolic memory as well as their implications for human health and diseases.
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Affiliation(s)
- Hao Dong
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuezhang Sun
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lulingxiao Nie
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Aimin Cui
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Pengfei Zhao
- Periodontology and Implant Dentistry Division, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Wai Keung Leung
- Periodontology and Implant Dentistry Division, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Qi Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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3
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Mihanfar A, Akbarzadeh M, Ghazizadeh Darband S, Sadighparvar S, Majidinia M. SIRT1: a promising therapeutic target in type 2 diabetes mellitus. Arch Physiol Biochem 2024; 130:13-28. [PMID: 34379994 DOI: 10.1080/13813455.2021.1956976] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 07/13/2021] [Indexed: 01/07/2023]
Abstract
A significant increase in the worldwide incidence and prevalence of type 2 diabetic mellitus (T2DM) has elevated the need for studies on novel and effective therapeutic strategies. Sirtuin 1 (SIRT1) is an NAD + dependent protein deacetylase with a critical function in the regulation of glucose/lipid metabolism, insulin resistance, inflammation, oxidative stress, and mitochondrial function. SIRT1 is also involved in the regulation of insulin secretion from pancreatic β-cells and protecting these cells from inflammation and oxidative stress-mediated tissue damages. In this regard, major SIRT1 activators have been demonstrated to exert a beneficial impact in reversing T2DM-related complications including cardiomyopathy, nephropathy, retinopathy, and neuropathy, hence treating T2DM. Therefore, an accumulating number of recent studies have investigated the efficacy of targeting SIRT1 as a therapeutic strategy in T2DM. In this review we aimed to discuss the current understanding of the physiological and biological roles of SIRT1, then its implication in the pathogenesis of T2DM, and the therapeutic potential of SIRT1 in combating T2DM.
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Affiliation(s)
- Ainaz Mihanfar
- Department of Biochemistry, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Maryam Akbarzadeh
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | | | - Shirin Sadighparvar
- Neurophysiology Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
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4
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Gluba-Sagr A, Franczyk B, Rysz-Górzyńska M, Ławiński J, Rysz J. The Role of miRNA in Renal Fibrosis Leading to Chronic Kidney Disease. Biomedicines 2023; 11:2358. [PMID: 37760798 PMCID: PMC10525803 DOI: 10.3390/biomedicines11092358] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/14/2023] [Accepted: 08/19/2023] [Indexed: 09/29/2023] Open
Abstract
Chronic kidney disease (CKD) is an important health concern that is expected to be the fifth most widespread cause of death worldwide by 2040. The presence of chronic inflammation, oxidative stress, ischemia, etc., stimulates the development and progression of CKD. Tubulointerstitial fibrosis is a common pathomechanism of renal dysfunction, irrespective of the primary origin of renal injury. With time, fibrosis leads to end-stage renal disease (ESRD). Many studies have demonstrated that microRNAs (miRNAs, miRs) are involved in the onset and development of fibrosis and CKD. miRNAs are vital regulators of some pathophysiological processes; therefore, their utility as therapeutic agents in various diseases has been suggested. Several miRNAs were demonstrated to participate in the development and progression of kidney disease. Since renal fibrosis is an important problem in chronic kidney disease, many scientists have focused on the determination of miRNAs associated with kidney fibrosis. In this review, we present the role of several miRNAs in renal fibrosis and the potential pathways involved. However, as well as those mentioned above, other miRs have also been suggested to play a role in this process in CKD. The reports concerning the impact of some miRNAs on fibrosis are conflicting, probably because the expression and regulation of miRNAs occur in a tissue- and even cell-dependent manner. Moreover, different assessment modes and populations have been used. There is a need for large studies and clinical trials to confirm the role of miRs in a clinical setting. miRNAs have great potential; thus, their analysis may improve diagnostic and therapeutic strategies.
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Affiliation(s)
- Anna Gluba-Sagr
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland
| | - Beata Franczyk
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland
| | - Magdalena Rysz-Górzyńska
- Department of Ophthalmology and Visual Rehabilitation, Medical University of Lodz, 90-549 Lodz, Poland
| | - Janusz Ławiński
- Department of Urology, Institute of Medical Sciences, College of Medical Sciences, University of Rzeszow, 35-055 Rzeszow, Poland
| | - Jacek Rysz
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland
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Barreiro K, Dwivedi OP, Rannikko A, Holthöfer H, Tuomi T, Groop PH, Puhka M. Capturing the Kidney Transcriptome by Urinary Extracellular Vesicles-From Pre-Analytical Obstacles to Biomarker Research. Genes (Basel) 2023; 14:1415. [PMID: 37510317 PMCID: PMC10379145 DOI: 10.3390/genes14071415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/30/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023] Open
Abstract
Urinary extracellular vesicles (uEV) hold non-invasive RNA biomarkers for genitourinary tract diseases. However, missing knowledge about reference genes and effects of preanalytical choices hinder biomarker studies. We aimed to assess how preanalytical variables (urine storage temperature, isolation workflow) affect diabetic kidney disease (DKD)-linked miRNAs or kidney-linked miRNAs and mRNAs (kidney-RNAs) in uEV isolates and to discover stable reference mRNAs across diverse uEV datasets. We studied nine raw and normalized sequencing datasets including healthy controls and individuals with prostate cancer or type 1 diabetes with or without albuminuria. We focused on kidney-RNAs reviewing literature for DKD-linked miRNAs from kidney tissue, cell culture and uEV/urine experiments. RNAs were analyzed by expression heatmaps, hierarchical clustering and selecting stable mRNAs with normalized counts (>200) and minimal coefficient of variation. Kidney-RNAs were decreased after urine storage at -20 °C vs. -80 °C. Isolation workflows captured kidney-RNAs with different efficiencies. Ultracentrifugation captured DKD -linked miRNAs that separated healthy and diabetic macroalbuminuria groups. Eleven mRNAs were stably expressed across the datasets. Hence, pre-analytical choices had variable effects on kidney-RNAs-analyzing kidney-RNAs complemented global correlation, which could fade differences in some relevant RNAs. Replicating prior DKD-marker results and discovery of candidate reference mRNAs encourages further uEV biomarker studies.
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Affiliation(s)
- Karina Barreiro
- Institute for Molecular Medicine Finland FIMM, HiLIFE, University of Helsinki, 00290 Helsinki, Finland
- Institute for Molecular Medicine Finland FIMM, EV and HiPREP Core, University of Helsinki, 00290 Helsinki, Finland
| | - Om Prakash Dwivedi
- Institute for Molecular Medicine Finland FIMM, HiLIFE, University of Helsinki, 00290 Helsinki, Finland
| | - Antti Rannikko
- Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland
- Department of Urology, University of Helsinki, Helsinki University Hospital, 00290 Helsinki, Finland
| | - Harry Holthöfer
- Institute for Molecular Medicine Finland FIMM, HiLIFE, University of Helsinki, 00290 Helsinki, Finland
- III Department of Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Tiinamaija Tuomi
- Institute for Molecular Medicine Finland FIMM, HiLIFE, University of Helsinki, 00290 Helsinki, Finland
- Lund University Diabetes Centre, Department of Clinical Sciences, Lund University, 214 28 Malmö, Sweden
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, 00290 Helsinki, Finland
- Endocrinology, Abdominal Centre, Helsinki University Hospital, 00029 Helsinki, Finland
| | - Per-Henrik Groop
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, 00290 Helsinki, Finland
- Department of Nephrology, University of Helsinki, Helsinki University Hospital, 00290 Helsinki, Finland
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC 3800, Australia
| | - Maija Puhka
- Institute for Molecular Medicine Finland FIMM, HiLIFE, University of Helsinki, 00290 Helsinki, Finland
- Institute for Molecular Medicine Finland FIMM, EV and HiPREP Core, University of Helsinki, 00290 Helsinki, Finland
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Ding Y, Xu X, Meng B, Wang L, Zhu B, Guo B, Zhang J, Xiang L, Dong J, Liu M, Xiang G. Myeloid-derived growth factor alleviates non-alcoholic fatty liver disease alleviates in a manner involving IKKβ/NF-κB signaling. Cell Death Dis 2023; 14:376. [PMID: 37365185 DOI: 10.1038/s41419-023-05904-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 05/31/2023] [Accepted: 06/16/2023] [Indexed: 06/28/2023]
Abstract
Whether bone marrow modulates systemic metabolism remains unknown. Our recent study suggested that myeloid-derived growth factor (MYDGF) improves insulin resistance. Here, we found that myeloid cell-specific MYDGF deficiency aggravated hepatic inflammation, lipogenesis, and steatosis, and show that myeloid cell-derived MYDGF restoration alleviated hepatic inflammation, lipogenesis, and steatosis. Additionally, recombinant MYDGF attenuated inflammation, lipogenesis, and fat deposition in primary mouse hepatocytes (PMHs). Importantly, inhibitor kappa B kinase beta/nuclear factor-kappa B (IKKβ/NF-κB) signaling is involved in protection of MYDGF on non-alcoholic fatty liver disease (NAFLD). These data revealed that myeloid cell-derived MYDGF alleviates NAFLD and inflammation in a manner involving IKKβ/NF-κB signaling, and serves as a factor involved in the crosstalk between the liver and bone marrow that regulates liver fat metabolism. Bone marrow functions as an endocrine organ and serves as a potential therapeutic target for metabolic disorders.
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Affiliation(s)
- Yan Ding
- Department of Endocrinology, General Hospital of Central Theater Command, Wuluo Road 627, Wuhan, 430070, Hubei Province, China
- Department of Diagnostics, School of Medicine, Hunan University of Medicine, Huaihua, 418000, Hunan Province, China
| | - Xiaoli Xu
- Department of Endocrinology, General Hospital of Central Theater Command, Wuluo Road 627, Wuhan, 430070, Hubei Province, China
- The First School of Clinical Medicine, Southern Medical University, NO.1023, South Shatai Road, Guangzhou, 510515, Guangdong Province, China
| | - Biying Meng
- Department of Endocrinology, General Hospital of Central Theater Command, Wuluo Road 627, Wuhan, 430070, Hubei Province, China
- The First School of Clinical Medicine, Southern Medical University, NO.1023, South Shatai Road, Guangzhou, 510515, Guangdong Province, China
| | - Li Wang
- Department of Endocrinology, General Hospital of Central Theater Command, Wuluo Road 627, Wuhan, 430070, Hubei Province, China
| | - Biao Zhu
- Department of Endocrinology, General Hospital of Central Theater Command, Wuluo Road 627, Wuhan, 430070, Hubei Province, China
| | - Bei Guo
- Department of Endocrinology, General Hospital of Central Theater Command, Wuluo Road 627, Wuhan, 430070, Hubei Province, China
| | - Jiajia Zhang
- Department of Endocrinology, General Hospital of Central Theater Command, Wuluo Road 627, Wuhan, 430070, Hubei Province, China
| | - Lin Xiang
- Department of Endocrinology, General Hospital of Central Theater Command, Wuluo Road 627, Wuhan, 430070, Hubei Province, China
| | - Jing Dong
- Department of Endocrinology, General Hospital of Central Theater Command, Wuluo Road 627, Wuhan, 430070, Hubei Province, China
| | - Min Liu
- Department of Endocrinology, General Hospital of Central Theater Command, Wuluo Road 627, Wuhan, 430070, Hubei Province, China
| | - Guangda Xiang
- Department of Endocrinology, General Hospital of Central Theater Command, Wuluo Road 627, Wuhan, 430070, Hubei Province, China.
- The First School of Clinical Medicine, Southern Medical University, NO.1023, South Shatai Road, Guangzhou, 510515, Guangdong Province, China.
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Yang Z, Wei J, Wang Y, Du Y, Song S, Li J, Su Z, Shi Y, Wu H. Irisin Ameliorates Renal Tubulointerstitial Fibrosis by Regulating the Smad4/β-Catenin Pathway in Diabetic Mice. Diabetes Metab Syndr Obes 2023; 16:1577-1593. [PMID: 37292142 PMCID: PMC10244207 DOI: 10.2147/dmso.s407734] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 05/06/2023] [Indexed: 06/10/2023] Open
Abstract
Background The primary pathophysiology of diabetic kidney disease (DKD) is tubulointerstitial fibrosis (TIF), and an essential contributing element is excessive extracellular matrix deposition. Irisin is a polypeptide formed by splitting fibronectin type III domain containing 5 (FNDC5), which participates in a number of physiological and pathological processes. Methods The purpose of this article is to examine irisin's function in DKD and analyze both its in vitro and in vivo effects. The Gene Expression Omnibus (GEO) database was used to download GSE30122, GSE104954, and GSE99325. Analysis of renal tubule samples from nondiabetic and diabetic mice identified 94 differentially expressed genes (DEGs). The transforming growth factor beta receptor 2 (TGFBR2), irisin, and TGF-β1 were utilized as DEGs to examine the impact of irisin on TIF in diabetic kidney tissue, according to the datasets retrieved from the GEO database and Nephroseq database. Additionally, the therapeutic impact of irisin was also examined using Western blot, RT-qPCR, immunofluorescence, immunohistochemistry, and kits for detecting mouse biochemical indices. Results In vitro, the findings demonstrated that irisin not only down-regulated the expression of Smad4 and β-catenin but also reduced the expression of proteins linked to fibrosis, the epithelial-mesenchymal transition (EMT), and mitochondrial dysfunction in HK-2 cells maintained in high glucose (HG) environment. In vivo, overexpressed FNDC5 plasmid was injected into diabetic mice to enhance its expression. Our studies found that overexpressed FNDC5 plasmid not only reversed the biochemical parameters and renal morphological characteristics of diabetic mice but also alleviated EMT and TIF by inhibiting Smad4/β-catenin signaling pathway. Conclusion The above experimental results revealed that irisin could reduce TIF in diabetic mice via regulating the Smad4/β-catenin pathway.
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Affiliation(s)
- Zhaohua Yang
- Department of Pathology, Hebei Medical University, Shijiazhuang, 050017, People’s Republic of China
| | - Jinying Wei
- Department of Pathology, Hebei Medical University, Shijiazhuang, 050017, People’s Republic of China
| | - Yashu Wang
- Department of Pathology, Hebei Medical University, Shijiazhuang, 050017, People’s Republic of China
| | - Yunxia Du
- Department of Pathology, Hebei Medical University, Shijiazhuang, 050017, People’s Republic of China
| | - Shan Song
- Department of Pathology, Hebei Medical University, Shijiazhuang, 050017, People’s Republic of China
| | - Jiawei Li
- Basic Medical College, Hebei Medical University, Shijiazhuang, 050017, People’s Republic of China
| | - Ziyuan Su
- Basic Medical College, Hebei Medical University, Shijiazhuang, 050017, People’s Republic of China
| | - Yonghong Shi
- Department of Pathology, Hebei Medical University, Shijiazhuang, 050017, People’s Republic of China
| | - Haijiang Wu
- Department of Pathology, Hebei Medical University, Shijiazhuang, 050017, People’s Republic of China
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Saito S, Ohno SI, Harada Y, Kanno Y, Kuroda M. MiR-34a induces myofibroblast differentiation from renal fibroblasts. Clin Exp Nephrol 2023; 27:411-418. [PMID: 36808381 DOI: 10.1007/s10157-023-02329-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/07/2023] [Indexed: 02/21/2023]
Abstract
BACKGROUND Renal fibrosis is the common outcome of progressive kidney diseases. To avoid dialysis, the molecular mechanism of renal fibrosis must be explored further. MicroRNAs play key roles in renal fibrosis. MiR-34a is a transcriptional target of p53, which regulates the cell cycle and apoptosis. Previous studies demonstrated that miR-34a promotes renal fibrosis. However, the distinct roles of miR-34a in renal fibrosis have not been fully elucidated. Here, we identified the roles of miR-34a in renal fibrosis. METHOD We first analyzed p53 and miR-34a expression in kidney tissues in s UUO (unilateral ureteral obstruction) mouse model. Then, to confirm the effects of miR-34a in vitro, we transfected a miR-34a mimic into a kidney fibroblast cell line (NRK-49F) and analyzed. RESULTS We found that the expression of p53 and miR-34a was upregulated after UUO. Furthermore, after transfection of the miR-34a mimic into kidney fibroblasts, the expression of α-SMA was upregulated dramatically. In addition, α-SMA upregulation was greater upon transfection of the miR-34a mimic than upon treatment with TGF-β1. Moreover, high expression of Acta2 was maintained despite sufficient removal of the miR-34a mimic by changing the medium 4 times during the 9-day culture. After transfection of the miR-34a mimic into kidney fibroblasts, we did not detect phospho-SMAD2/3 by immunoblotting analysis. CONCLUSION Our study revealed that miR-34a induces myofibroblast differentiation from renal fibroblasts. Moreover, the miR-34a-induced upregulation of α-SMA was independent of the TGF-β/SMAD signaling pathway. In conclusion, our study indicated that the p53/miR-34a axis promotes the development of renal fibrosis.
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Affiliation(s)
- Suguru Saito
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
| | - Shin-Ichiro Ohno
- Deparatment of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan.
| | - Yuichirou Harada
- Deparatment of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Yoshihiko Kanno
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
| | - Masahiko Kuroda
- Deparatment of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
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Urinary microRNA in Diabetic Kidney Disease: A Literature Review. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59020354. [PMID: 36837555 PMCID: PMC9962090 DOI: 10.3390/medicina59020354] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/31/2023] [Accepted: 02/10/2023] [Indexed: 02/15/2023]
Abstract
Diabetic kidney disease is the most common primary disease of end-stage kidney disease globally; however, a sensitive and accurate biomarker to predict this disease remains awaited. microRNAs are endogenous single-stranded noncoding RNAs that have intervened in different post-transcriptional regulations of various cellular biological functions. Previous literatures have reported its potential role in the pathophysiology of diabetic kidney disease, including regulation of Transforming Growth Factor-β1-mediated fibrosis, extracellular matrix and cell adhesion proteins, cellular hypertrophy, growth factor, cytokine production, and redox system activation. Urinary microRNAs have emerged as a novel, non-invasive liquid biopsy for disease diagnosis. In this review, we describe the available experimental and clinical evidence of urinary microRNA in the context of diabetic kidney disease and discuss the future application of microRNA in routine practice.
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Sun Y, Qu H, Song Q, Shen Y, Wang L, Niu X. High-glucose induced toxicity in HK-2 cells can be alleviated by inhibition of miRNA-320c. Ren Fail 2022; 44:1388-1398. [PMID: 35969018 PMCID: PMC9389931 DOI: 10.1080/0886022x.2022.2106874] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Diabetic nephropathy (DN) is a major healthcare challenge worldwide. MiRNAs exert a regulatory effect on the progress of DN. Our study proposed to investigate the miR-320c expression and its function on the pathogenesis of DN in vitro. The level of miR-320c in HK-2 cells was quantified by RT-qPCR. Cell morphology, invasion, and migration were observed by optical microscope, Transwell invasion assay, and scratch wound assay. Then, the levels of PTEN, α-SMA, vimentin, E-cadherin, p-PI3K, PI3K, AKT, and p-AKT were analyzed through western blotting. A Dual-luciferase reporter assay was conducted to explore the target relationship between miR-320c and PTEN. It was discovered that miR-320c was over-expressed in high glucose (HG)-treated HK-2 cells. Furthermore, inhibition of miR-320c could alleviate the epithelial-mesenchymal transition (EMT) of HG-induced HK-2 cells and retain the normal morphology of HK-2 cells. Additionally, the miR-320c inhibitor decreased the invasiveness and migration of HG-treated HK-2 cells. Next, the target gene of miR-320c, PTEN, was identified, and the function of miR-320c was reversed by down-regulation of PTEN. Finally, we found inhibition of miR-320c restrained the PI3K/AKT pathway. Therefore, inhibition of miR-320c could alleviate toxicity of HK-2 cells induced by HG via targeting PTEN and restraining the PI3K/AKT pathway, illustrating that miR-320c may act as a new biomarker in the diagnosis of DN.
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Affiliation(s)
- Yan Sun
- Heji Hospital Affiliated to Changzhi Medical College, Changzhi, China
| | - Hai Qu
- Department of General Surgery, Heji Hospital Affiliated to Changzhi Medical College, Changzhi, China
| | - Qi Song
- Heji Hospital Affiliated to Changzhi Medical College, Changzhi, China
| | - Yifan Shen
- Heji Hospital Affiliated to Changzhi Medical College, Changzhi, China
| | - Lijuan Wang
- Heji Hospital Affiliated to Changzhi Medical College, Changzhi, China
| | - Xiaohong Niu
- Heji Hospital Affiliated to Changzhi Medical College, Changzhi, China
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Tang J, Liu F, Cooper ME, Chai Z. Renal fibrosis as a hallmark of diabetic kidney disease: Potential role of targeting transforming growth factor-beta (TGF-β) and related molecules. Expert Opin Ther Targets 2022; 26:721-738. [PMID: 36217308 DOI: 10.1080/14728222.2022.2133698] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Diabetic kidney disease (DKD) is the most common cause of end-stage renal disease (ESRD) worldwide. Currently, there is no effective treatment to completely prevent DKD progression to ESRD. Renal fibrosis and inflammation are the major pathological features of DKD, being pursued as potential therapeutic targets for DKD. AREAS COVERED Inflammation and renal fibrosis are involved in the pathogenesis of DKD. Anti-inflammatory drugs have been developed to combat DKD but without efficacy demonstrated. Thus, we have focused on the mechanisms of TGF-β-induced renal fibrosis in DKD, as well as discussing the important molecules influencing the TGF-β signaling pathway and their potential development into new pharmacotherapies, rather than targeting the ligand TGF-β and/or its receptors, such options include Smads, microRNAs, histone deacetylases, connective tissue growth factor, bone morphogenetic protein 7, hepatocyte growth factor, and cell division autoantigen 1. EXPERT OPINION TGF-β is a critical driver of renal fibrosis in DKD. Molecules that modulate TGF-β signaling rather than TGF-β itself are potentially superior targets to safely combat DKD. A comprehensive elucidation of the pathogenesis of DKD is important, which requires a better model system and access to clinical samples via collaboration between basic and clinical researchers.
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Affiliation(s)
- Jiali Tang
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, Australia
| | - Fang Liu
- Department of Nephrology and Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital, Sichuan University, Chengdu, China
| | - Mark E Cooper
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, Australia
| | - Zhonglin Chai
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, Australia
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12
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Zhou Y, Li H, Wang L. Mechanism of miR-34a in the metabolism of extracellular matrix in fibroblasts of stress urinary incontinence via Nampt-mediated autophagy. Cell Stress Chaperones 2022; 27:369-381. [PMID: 35666377 PMCID: PMC9346036 DOI: 10.1007/s12192-022-01278-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 05/12/2022] [Accepted: 05/15/2022] [Indexed: 01/03/2023] Open
Abstract
Stress urinary incontinence (SUI) is a troublesome hygienic problem that afflicts the female population and is associated with extracellular matrix (ECM). Herein, we investigated the effects of microRNA (miR)-34a on ECM metabolism in fibroblasts of SUI via mediating nicotinamide phosphoribosyl transferase (Nampt/NAmPRTase) and hope to find novel insights in the treatment of SUI. Firstly, the anterior vaginal wall tissues of SUI patients and the female vaginal wall fibroblasts (FVWFs) of non-SUI subjects were collected and identified. Then, FVWFs were treated with 10 ng/mL of interleukin 1 beta (IL-1β) to establish SUI cell models. Subsequently, miR-34a and Nampt expressions in both types of cells were detected via RT-qPCR. It was found that miR-34a was poorly expressed, while Nampt was highly expressed in SUI. Subsequently, IL-1β-treated FVWFs were transfected with miR-34a-mimic and pcDNA3.1-Nampt, respectively. Thereafter, RT-qPCR and Western blot detected that miR-34a overexpression increased COL1A, ACAN, and TIMP-1; decreased MMP-2 and MMP-9; and elevated LC3 II/I ratio, Beclin-1 expression, and the autophagosome number in IL-1β-treated FVWFs, while Nampt upregulation reversed the above outcomes. Then, dual-luciferase reporter gene assay detected that Nampt is a downstream target of miR-34a. Together, miR-34a overexpression promoted autophagy, inhibited ECM degradation in IL-1β-treated FVWFs, and ameliorated SUI via suppressing Nampt.
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Affiliation(s)
- Ying Zhou
- Department of Gynecology, Zhengzhou Central Hospital of Zhengzhou University, No. 195 Middle Tongbai Road, Zhengzhou, 450000, Henan Province, China
| | - Hongjuan Li
- Department of Gynecology, Zhengzhou Central Hospital of Zhengzhou University, No. 195 Middle Tongbai Road, Zhengzhou, 450000, Henan Province, China.
| | - Lu Wang
- Department of Gynecology, Zhengzhou Central Hospital of Zhengzhou University, No. 195 Middle Tongbai Road, Zhengzhou, 450000, Henan Province, China.
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13
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Zhao M, Qi Q, Liu S, Huang R, Shen J, Zhu Y, Chai J, Zheng H, Wu H, Liu H. MicroRNA-34a: A Novel Therapeutic Target in Fibrosis. Front Physiol 2022; 13:895242. [PMID: 35795649 PMCID: PMC9250967 DOI: 10.3389/fphys.2022.895242] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 05/30/2022] [Indexed: 12/26/2022] Open
Abstract
Fibrosis can occur in many organs, and severe cases leading to organ failure and death. No specific treatment for fibrosis so far. In recent years, microRNA-34a (miR-34a) has been found to play a role in fibrotic diseases. MiR-34a is involved in the apoptosis, autophagy and cellular senescence, also regulates TGF-β1/Smad signal pathway, and negatively regulates the expression of multiple target genes to affect the deposition of extracellular matrix and regulate the process of fibrosis. Some studies have explored the efficacy of miR-34a-targeted therapies for fibrotic diseases. Therefore, miR-34a has specific potential for the treatment of fibrosis. This article reviews the important roles of miR-34a in fibrosis and provides the possibility for miR-34a as a novel therapeutic target in fibrosis.
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Affiliation(s)
- Min Zhao
- Department of Acupuncture-Moxibustion, LongHua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qin Qi
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai, China
| | - Shimin Liu
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai, China
| | - Rong Huang
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiacheng Shen
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yi Zhu
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai, China
| | - Jing Chai
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Handan Zheng
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai, China
| | - Huangan Wu
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai, China
- *Correspondence: Huangan Wu, ; Huirong Liu,
| | - Huirong Liu
- Key Laboratory of Acupuncture and Immunological Effects, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai, China
- *Correspondence: Huangan Wu, ; Huirong Liu,
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14
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DiNicolantonio JJ, McCarty MF, O'Keefe JH. Coenzyme Q10 deficiency can be expected to compromise Sirt1 activity. Open Heart 2022; 9:e001927. [PMID: 35296520 PMCID: PMC8928362 DOI: 10.1136/openhrt-2021-001927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 02/28/2022] [Indexed: 12/11/2022] Open
Abstract
For reasons that remain unclear, endogenous synthesis and tissue levels of coenzyme Q10 (CoQ10) tend to decline with increasing age in at least some tissues. When CoQ10 levels are sufficiently low, this compromises the efficiency of the mitochondrial electron transport chain, such that production of superoxide by site 2 increases and the rate of adenosine triphosphate production declines. Moreover, CoQ10 deficiency can be expected to decrease activities of Sirt1 and Sirt3 deacetylases, believed to be key determinants of health span. Reduction of the cytoplasmic and mitochondrial NAD+/NADH ratio consequent to CoQ10 deficit can be expected to decrease the activity of these deacetylases by lessening availability of their obligate substrate NAD+ The increased oxidant production induced by CoQ10 deficiency can decrease the stability of Sirt1 protein by complementary mechanisms. And CoQ10 deficiency has also been found to lower mRNA expression of Sirt1. An analysis of the roles of Sirt1/Sirt3 in modulation of cellular function helps to rationalise clinical benefits of CoQ10 supplementation reported in heart failure, hypertension, non-alcoholic fatty liver disease, metabolic syndrome and periodontal disease. Hence, correction of CoQ10 deficiency joins a growing list of measures that have potential for amplifying health protective Sirt1/Sirt3 activities.
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Affiliation(s)
- James J DiNicolantonio
- Department of Preventive Cardiology, Saint Luke's Mid America Heart Institute, Kansas City, Missouri, USA
| | | | - James H O'Keefe
- Saint Luke's Mid America Heart Institute, University of Missouri-Kansas City, Kansas City, Missouri, USA
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15
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The HDAC2/SP1/miR-205 feedback loop contributes to tubular epithelial cell extracellular matrix production in diabetic kidney disease. Clin Sci (Lond) 2022; 136:223-238. [PMID: 35084460 DOI: 10.1042/cs20210470] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 01/23/2022] [Accepted: 01/27/2022] [Indexed: 11/17/2022]
Abstract
Extracellular matrix (ECM) accumulation is considered an important pathological feature of diabetic kidney disease (DKD). Histone deacetylase (HDAC) inhibitors protect against kidney injury. However, the potential mechanisms of HDACs in DKD are still largely unknown. Here, we describe a novel feedback loop composed of HDAC2 and miR-205 that regulates ECM production in tubular epithelial cells in individuals with DKD. We found that HDAC2 mRNA expression in peripheral blood was markedly higher in patients with DKD than in patients with diabetes. Nuclear HDAC2 protein expression was increased in TGFβ1-stimulated tubular epithelial cells and db/db mice. We also found that miR-205 was regulated by HDAC2 and downregulated in TGFβ1-treated HK2 cells and db/db mice. In addition, HDAC2 reduced histone H3K9 acetylation in the miR-205 promoter region to inhibit its promoter activity and subsequently suppressed miR-205 expression through an SP1-mediated pathway. Furthermore, miR-205 directly targeted HDAC2 and inhibited HDAC2 expression. Intriguingly, miR-205 also regulated its own transcription by inhibiting HDAC2 and increasing histone H3K9 acetylation in its promoter, forming a feedback regulatory loop. Additionally, the miR-205 agonist attenuated ECM production in HK2 cells and renal interstitial fibrosis in db/db mice. In conclusion, the HDAC2/SP1/miR-205 feedback loop may be crucial for the pathogenesis of DKD.
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16
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Zhang D, Chen X, Zheng D. A Novel MIR503HG/miR-497-5p/CCL19 Axis Regulates High Glucose-Induced Cell Apoptosis, Inflammation, and Fibrosis in Human HK-2 Cells. Appl Biochem Biotechnol 2022; 194:2061-2076. [DOI: 10.1007/s12010-021-03776-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/30/2021] [Indexed: 12/29/2022]
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17
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Hao R, Ge J, Song X, Li F, Sun-Waterhouse D, Li D. Cadmium induces ferroptosis and apoptosis by modulating miR-34a-5p/Sirt1axis in PC12 cells. ENVIRONMENTAL TOXICOLOGY 2022; 37:41-51. [PMID: 34558789 DOI: 10.1002/tox.23376] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 09/06/2021] [Accepted: 09/12/2021] [Indexed: 06/13/2023]
Abstract
Cadmium (Cd) is a potent neurotoxic metal present in the environment and food. In this study, CdCl2 (2 or 4 μM) induced cytotoxicity and neurotoxicity in PC12 cells, causing decreases in cell viability and NEP protein expression and increase in p-tau protein expression. For the first time, CdCl2 -initiated injury was found to result from the induction of not only apoptosis but also ferroptosis, as evidenced by the increased iron content, ROS production, and mitochondrial membrane potential along with changes in the expressions of iron death-related genes (FTH1, GPX4, ASCL4, PTGS2, and NOX1) and levels of caspase9, Bax, and Bcl-2 proteins. The molecular mechanisms leading to apoptosis and ferroptosis at least included the participation of the miR-34a-5p/Sirt1 axis, in which miR-34a-5p promoted CdCl2 -induced neurotoxicity through targeting Sirt1. Knocking out miR-34a-5p attenuated CdCl2 -induced damage of PC12 cells, cytotoxicity and neurotoxicity. This research provides the underlying molecular mechanisms of CdCl2 -induced damage and asserts the role of miRNAs as critical regulators.
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Affiliation(s)
- Rili Hao
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, China
| | - Junlin Ge
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, China
| | - Xinyu Song
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, China
| | - Feng Li
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, China
| | - Dongxiao Sun-Waterhouse
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, China
- School of Chemical Sciences, The University of Auckland, Auckland, New Zealand
| | - Dapeng Li
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, China
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18
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Qi W, Hu C, Zhao D, Li X. SIRT1-SIRT7 in Diabetic Kidney Disease: Biological Functions and Molecular Mechanisms. Front Endocrinol (Lausanne) 2022; 13:801303. [PMID: 35634495 PMCID: PMC9136398 DOI: 10.3389/fendo.2022.801303] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 04/15/2022] [Indexed: 12/14/2022] Open
Abstract
Diabetic kidney disease (DKD) is a severe microvascular complication in patients with diabetes and is one of the main causes of renal failure. The current clinical treatment methods for DKD are not completely effective, and further exploration of the molecular mechanisms underlying the pathology of DKD is necessary to improve and promote the treatment strategy. Sirtuins are class III histone deacetylases, which play an important role in many biological functions, including DNA repair, apoptosis, cell cycle, oxidative stress, mitochondrial function, energy metabolism, lifespan, and aging. In the last decade, research on sirtuins and DKD has gained increasing attention, and it is important to summarize the relationship between DKD and sirtuins to increase the awareness of DKD and improve the cure rates. We have found that miRNAs, lncRNAs, compounds, or drugs that up-regulate the activity and expression of sirtuins play protective roles in renal function. Therefore, in this review, we summarize the biological functions, molecular targets, mechanisms, and signaling pathways of SIRT1-SIRT7 in DKD models. Existing research has shown that sirtuins have the potential as effective targets for the clinical treatment of DKD. This review aims to lay a solid foundation for clinical research and provide a theoretical basis to slow the development of DKD in patients.
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Affiliation(s)
- Wenxiu Qi
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
- *Correspondence: Wenxiu Qi,
| | - Cheng Hu
- College of Laboratory Medicine, Jilin Medical University, Jilin City, China
| | - Daqing Zhao
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Xiangyan Li
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
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19
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Wooten S, Smith KN. Long non-coding RNA OIP5-AS1 (Cyrano): A context-specific regulator of normal and disease processes. Clin Transl Med 2022; 12:e706. [PMID: 35040588 PMCID: PMC8764876 DOI: 10.1002/ctm2.706] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 12/21/2021] [Accepted: 12/29/2021] [Indexed: 12/17/2022] Open
Abstract
Long non-coding (lnc) RNAs have been implicated in a plethora of normal biological functions, and have also emerged as key molecules in various disease processes. OIP5-AS1, also commonly known by the alias Cyrano, is a lncRNA that displays broad expression across multiple tissues, with significant enrichment in particular contexts including within the nervous system and skeletal muscle. Thus far, this multifaceted lncRNA has been found to have regulatory functions in normal cellular processes including cell proliferation and survival, as well as in the development and progression of a myriad disease states. These widespread effects on normal and disease states have been found to be mediated through context-specific intermolecular interactions with dozens of miRNAs and proteins identified to date. This review explores recent studies to highlight OIP5-AS1's contextual yet pleiotropic roles in normal homeostatic functions as well as disease oetiology and progression, which may influence its utility in the generation of future theranostics.
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Affiliation(s)
- Serena Wooten
- Department of GeneticsUniversity of North Carolina at Chapel HillNorth CarolinaUSA
| | - Keriayn N. Smith
- Department of GeneticsUniversity of North Carolina at Chapel HillNorth CarolinaUSA
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20
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Gallic Acid Improves Diabetic Steatosis by Downregulating MicroRNA-34a-5p through Targeting NFE2L2 Expression in High-Fat Diet-Fed db/db Mice. Antioxidants (Basel) 2021; 11:antiox11010092. [PMID: 35052597 PMCID: PMC8773012 DOI: 10.3390/antiox11010092] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/24/2021] [Accepted: 12/28/2021] [Indexed: 12/18/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) has become epidemic worldwide and is strongly associated with nonalcoholic fatty liver disease (NAFLD). The molecular mechanisms of microRNAs in NAFLD and T2DM development and the corresponding therapies remain unclear. We performed microRNA microarray validation to determine whether hepatic miR-34a-5p was significantly upregulated in db/db mice fed with a high-fat diet (HFD), a mouse model of T2DM with steatohepatitis. The potential role of miR-34a-5p and gallic acid (GA) in regulating hepatic lipid metabolism and diabetic steatosis was explored. GA improved the activities of antioxidant enzymes and suppressed lipid accumulation in the HFD-induced steatotic liver of db/db mice. In vitro, the silencing of miR-34a-5p in hepatocyte HepG2 cells ameliorated high glucose + oleic acid/palmitic acid mixture–induced accumulation of cellular triglycerides. We identified nuclear factor erythroid-derived 2-like 2 (NFE2L2) as a direct target of miR-34a-5p. Reduction in intracellular triglyceride and the expression levels of sterol regulatory element-binding protein 1 and fatty acid synthase by GA were mediated by the inhibition of miR-34a-5p expression in HepG2 cells. The findings suggest that GA improves hepatic lipogenesis by downregulating miR-34a-5p by suppressing NFE2L2 expression, indicating the potential therapeutic role of GA or an NFE2L2-activating agent in diabetic fatty liver disease.
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Abstract
Diabetic nephropathy (DN), which is a common microvascular complication with a high incidence in diabetic patients, greatly increases the mortality of patients. With further study on DN, it is found that epigenetics plays a crucial role in the pathophysiological process of DN. Epigenetics has an important impact on the development of DN through a variety of mechanisms, and promotes the generation and maintenance of metabolic memory, thus ultimately leading to a poor prognosis. In this review we discuss the methylation of DNA, modification of histone, and regulation of non-coding RNA involved in the progress of cell dysfunction, inflammation and fibrosis in the kidney, which ultimately lead to the deterioration of DN.
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22
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Caus M, Eritja À, Bozic M. Role of microRNAs in Obesity-Related Kidney Disease. Int J Mol Sci 2021; 22:ijms222111416. [PMID: 34768854 PMCID: PMC8583993 DOI: 10.3390/ijms222111416] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/19/2021] [Accepted: 10/20/2021] [Indexed: 12/14/2022] Open
Abstract
Obesity is a major global health problem and is associated with a significant risk of renal function decline. Obesity-related nephropathy, as one of the complications of obesity, is characterized by a structural and functional damage of the kidney and represents one of the important contributors to the morbidity and mortality worldwide. Despite increasing data linking hyperlipidemia and lipotoxicity to kidney injury, the apprehension of molecular mechanisms leading to a development of kidney damage is scarce. MicroRNAs (miRNAs) are endogenously produced small noncoding RNA molecules with an important function in post-transcriptional regulation of gene expression. miRNAs have been demonstrated to be important regulators of a vast array of physiological and pathological processes in many organs, kidney being one of them. In this review, we present an overview of miRNAs, focusing on their functional role in the pathogenesis of obesity-associated renal pathologies. We explain novel findings regarding miRNA-mediated signaling in obesity-related nephropathies and highlight advantages and future perspectives of the therapeutic application of miRNAs in renal diseases.
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Zhang J, Ding J, Yu M, Li F, Zhou X, Shuai H. Long non-coding RNA TTC28-AS1 attenuates high glucose-induced damage in HK-2 cells depending on the regulation of miR-320a/CD2AP axis. Genes Genomics 2021; 43:1471-1482. [PMID: 34623609 DOI: 10.1007/s13258-021-01167-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 09/15/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Diabetic nephropathy (DN) is the leading cause of end-stage renal disease (ESRD) worldwide. Emerging evidence suggests that long non-coding RNAs (lncRNAs) play crucial roles in DN pathogenesis. OBJECTIVE The purpose of the present study was to explore the role and mechanism of lncRNA tetratricopeptide repeat domain 2B antisense RNA 1 (TTC28-AS1) in DN. METHODS Cell viability and apoptosis were assessed by the Cell Counting-8 Kit (CCK-8) assay and flow cytometry, respectively. The levels of TTC28-AS1, miR-320a and CD2-associated protein (CD2AP) were determined by quantitative real-time polymerase chain reaction (qRT-PCR) or western blot. The levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and IL-8 were gauged by enzyme-linked immunosorbent assay (ELISA). Targeted relationship between miR-320a and TTC28-AS1 or CD2AP was evaluated by dual-luciferase reporter and RNA immunoprecipitation (RIP) assays. RESULTS Our data indicated that high glucose (HG) induced HK-2 cell damage by the repression of cell viability and autophagy and the enhancement of cell apoptosis, fibrosis and pro-inflammatory cytokines production. TTC28-AS1 was down-regulated and miR-320a was up-regulated in HG-induced HK-2 cells. TTC28-AS1 overexpression or miR-320a knockdown alleviated HG-induced damage in HK-2 cells. MiR-320 was a molecular mediator of TTC28-AS1 in regulating HG-induced HK-2 cell damage. Moreover, TTC28-AS1 functioned as a post-transcriptional regulator of CD2AP expression by miR-320a. MiR-320a knockdown relieved HG-induced damage in HK-2 cells by up-regulating CD2AP. CONCLUSIONS Our findings suggest that TTC28-AS1 attenuates HG-induced damage in HK-2 cells at least partially by targeting the miR-320a/CD2AP axis, highlighting its role as a promising therapeutic approach for DN treatment.
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Affiliation(s)
- Ji Zhang
- Department of Pharmacology, Xiangyang Central Hospital, Affiliated Hospital of HuBei University of Arts and Science, Xiangyang, Hubei, China
| | - Juan Ding
- Department of Endocrinology, Xiangyang Central Hospital, Affiliated Hospital of HuBei University of Arts and Science, Xiangyang, Hubei, China
| | - Ming Yu
- Department of General Practice, Xiangyang Central Hospital, Affiliated Hospital of HuBei University of Arts and Science, Xiangyang, Hubei, China
| | - Fang Li
- Department of Endocrinology, Xiangyang Central Hospital, Affiliated Hospital of HuBei University of Arts and Science, Xiangyang, Hubei, China
| | - Xue Zhou
- Department of Endocrinology, Xiangyang Central Hospital, Affiliated Hospital of HuBei University of Arts and Science, Xiangyang, Hubei, China
| | - Hongxia Shuai
- Department of Endocrinology, Xiangyang Central Hospital, Affiliated Hospital of HuBei University of Arts and Science, Xiangyang, Hubei, China.
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24
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Syed AA, Reza MI, Garg R, Goand UK, Gayen JR. Cissus quadrangularis extract attenuates diabetic nephropathy by altering SIRT1/DNMT1 axis. J Pharm Pharmacol 2021; 73:1442-1450. [PMID: 34128987 DOI: 10.1093/jpp/rgab078] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 05/06/2021] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Hyperglycemia-induced SIRT1, DNMT1, SODs, as well as oxidative stress, play a pivotal role in the progression of diabetic nephropathy. Cissus quadrangularis, holds antioxidant and hypoglycemic activity; however, a direct link between its activity and prevention of diabetic nephropathy has not been ascertained yet. Accordingly, we aimed to delineate the protective effect of ethanolic extract of Cissus quadrangularis (EECQ) against high-fat diet/streptozotocin (HFD/STZ) induced diabetic nephropathy rats. METHODS The control group was fed with a normal chow diet. Rats kept on an HFD for 12 weeks with a single low dose of STZ manifested the features of diabetic nephropathy. The treatment was done by the oral administration of EECQ (200 mg/kg) for six weeks (six rats in each group). KEY FINDINGS Treatment with EECQ demonstrated substantial attenuation of elevated insulin resistance, lipid profile and creatinine level. Additionally, EECQ restored albuminuria, glomerular filtration rate and creatinine clearance in diabetic nephropathy rats. Furthermore, HFD consumption in rats culminated in reduced SIRT1 and enhanced DNMT1 expression, nonetheless, rescued by EECQ. Moreover, EECQ augmented the SOD 1 and 3 levels, thereby safeguarded from oxidative damage and renal inflammation. Besides, treatment protected from renal fibrosis by downregulating TGFβ, Smad2/3 and col1/3 expression in diseased rats. CONCLUSIONS Thus, based on the above findings, we conclude that EECQ shows a protective effect against diabetic nephropathy.
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Affiliation(s)
- Anees Ahmed Syed
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Mohammad Irshad Reza
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Richa Garg
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Umesh K Goand
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Jiaur R Gayen
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, India
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow,India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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miR-23a-3p regulates the inflammatory response and fibrosis in diabetic kidney disease by targeting early growth response 1. In Vitro Cell Dev Biol Anim 2021; 57:763-774. [PMID: 34608568 PMCID: PMC8585819 DOI: 10.1007/s11626-021-00606-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 07/04/2021] [Indexed: 12/25/2022]
Abstract
Diabetic kidney disease (DKD) has become the most common cause of chronic kidney disease. Proteinuria is generally considered one of the clinical indicators of renal damage, and it is also closely related to the progression of DKD. Accumulating evidence indicates that proteinuria induces an upregulation of the expression levels of inflammatory cytokines and fibrosis markers in renal tubular epithelial cells, but the mechanism remains unclear. Previously, we showed that early growth response 1 (Egr1) played a key role in renal tubular injury. However, the upstream mechanism of Egr1 in the development of DKD is poorly understood. In this study, we found that albumin stimulation significantly increased the expression levels of Egr1, interleukin 6 (IL-6), tumor necrosis factor-α (TNF-α), and fibronectin (FN) in HK-2 cells but decreased miR-23a-3p levels. We then identified that miR-23a-3p targeted the 3′ untranslated region (UTR) of Egr1 and directly suppressed the expression of Egr1. Moreover, we found that overexpression and inhibition of miR-23a-3p in HK-2 cells attenuated and promoted the expression of IL-6, TNF-α, and FN, respectively. Additionally, Egr1 silencing reversed the inflammation and fibrosis caused by the miR-23a-3p inhibitor. Thus, we conclude that miR-23a-3p attenuates the development of DKD through Egr1, suggesting that targeting miR-23a-3p may be a novel therapeutic approach for DKD.
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Su Z, Ren N, Ling Z, Sheng L, Zhou S, Guo C, Ke Z, Xu T, Qin Z. Differential expression of microRNAs associated with neurodegenerative diseases and diabetic nephropathy in protein l-isoaspartyl methyltransferase-deficient mice. Cell Biol Int 2021; 45:2316-2330. [PMID: 34314072 DOI: 10.1002/cbin.11679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 07/15/2021] [Accepted: 07/24/2021] [Indexed: 11/05/2022]
Abstract
Protein l-isoaspartyl methyltransferase (PIMT/PCMT1), an enzyme repairing isoaspartate residues in peptides and proteins that result from the spontaneous decomposition of normal l-aspartyl and l-asparaginyl residues during aging, has been revealed to be involved in neurodegenerative diseases (NDDs) and diabetes. However, the molecular mechanisms for a putative association of PIMT dysfunction with these diseases have not been clarified. Our study aimed to identify differentially expressed microRNAs (miRNAs) in the brain and kidneys of PIMT-deficient mice and uncover the epigenetic mechanism of PIMT-involved NDDs and diabetic nephropathy (DN). Differentially expressed miRNAs by sequencing underwent target prediction and enrichment analysis in the brain and kidney of PIMT knockout (KO) mice and age-matched wild-type (WT) littermates. Sequence analysis revealed 40 differentially expressed miRNAs in the PIMT KO mouse brain including 25 upregulated miRNAs and 15 downregulated miRNAs. In the PIMT KO mouse kidney, there were 80 differentially expressed miRNAs including 40 upregulated miRNAs and 40 downregulated miRNAs. Enrichment analysis and a systematic literature review of differentially expressed miRNAs indicated the involvement of PIMT deficiency in the pathogenesis in NDDs and DN. Some overlapped differentially expressed miRNAs between the brain and kidney were quantitatively assessed in the brain, kidney, and serum-derived exosomes, respectively. Despite being preliminary, these results may aid in investigating the pathological hallmarks and identify the potential therapeutic targets and biomarkers for PIMT dysfunction-related NDDs and DN.
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Affiliation(s)
- Zhonghao Su
- Department of Febrile Disease, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Na Ren
- Department of Anatomy, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zicheng Ling
- Department of Anatomy, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lanyue Sheng
- Department of Anatomy, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Sirui Zhou
- Department of Anatomy, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chunxia Guo
- Department of Anatomy, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zunji Ke
- Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tiefeng Xu
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhenxia Qin
- Department of Anatomy, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Wang S, Huang Y, Luo G, Yang X, Huang W. Cyanidin-3-O-glucoside attenuates high glucose-induced podocyte dysfunction by inhibiting apoptosis and promoting autophagy via activation of SIRT1/AMPK pathway. Can J Physiol Pharmacol 2021; 99:589-598. [PMID: 33049148 DOI: 10.1139/cjpp-2020-0341] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Diabetic nephropathy (DN) is a common and complicated chronic kidney disease around the world. To elucidate and find effective therapies of DN is of vital importance. In this paper, we have discovered that cyanidin-3-O-glucoside (C3G), which is one of the anthocyanins, could alleviate high glucose-induced podocyte dysfunction. MTT, flow cytometry assay, and Western blot analysis showed that C3G could reverse the increase of cell apoptosis under high glucose treatment in MPC5 cells by upregulation of Bcl2 and downregulation of Bax and cleaved caspase-3. Moreover, C3G improved the autophagy decrease that was induced by high glucose through regulating the expression level of LC3-II/LC3-I, Beclin1, and p62. In addition, C3G inhibited epithelial-mesenchymal transition (EMT) by increasing E-cadherin and reducing Vimentin. By further study of the mechanisms, we found C3G activated the SIRT1 and AMPK which were inhibited in high glucose condition. Silencing SIRT1 blocked the effect of C3G on regulating cell apoptosis, autophagy, and EMT. In summary, our current findings suggest the protective effect of C3G against high glucose-induced podocyte dysfunction is by improving autophagy and reducing apoptosis and EMT via activating SIRT1/AMPK pathway. It might be a new insight for the treatment of DN.
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Affiliation(s)
- Shu Wang
- Southwest Medical University, LuZhou City, SiChuan Province, China
| | - Yuqing Huang
- Southwest Medical University, LuZhou City, SiChuan Province, China
| | - Guangyan Luo
- Southwest Medical University, LuZhou City, SiChuan Province, China
| | - Xin Yang
- Southwest Medical University, LuZhou City, SiChuan Province, China
| | - Wei Huang
- The Affiliated Hospital of Southwest Medical University, LuZhou City, SiChuan Province, China
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DiNicolantonio JJ, McCarty MF, Barroso-Aranda J, Assanga S, Lujan LML, O'Keefe JH. A nutraceutical strategy for downregulating TGFβ signalling: prospects for prevention of fibrotic disorders, including post-COVID-19 pulmonary fibrosis. Open Heart 2021; 8:openhrt-2021-001663. [PMID: 33879509 PMCID: PMC8061562 DOI: 10.1136/openhrt-2021-001663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/30/2021] [Indexed: 12/14/2022] Open
Affiliation(s)
- James J DiNicolantonio
- Preventive Cardiology, Saint Luke's Mid America Heart Institute, Kansas City, Missouri, USA
| | | | | | - Simon Assanga
- Department of Research and Postgraduate Studies in Food, University of Sonora, Sonora, Mexico
| | | | - James H O'Keefe
- University of Missouri-Kansas City, Saint Lukes Mid America Heart Institute, Kansas City, Missouri, USA
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29
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Paschou SA, Siasos G, Katsiki N, Tentolouris N, Tousoulis D. The Role of microRNAs in the Development of Type 2 Diabetes Complications. Curr Pharm Des 2021; 26:5969-5979. [PMID: 33138753 DOI: 10.2174/1381612826666201102102233] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 08/16/2020] [Indexed: 11/22/2022]
Abstract
MicroRNAs represent a class of small (19-25 nucleotides) single-strand pieces of RNA that are noncoding ones. They are synthesized by RNA polymerase II from transcripts that fold back on themselves. They mostly act as gene regulatory agents that pair with complementary sequences on mRNA and produce silencing complexes, which, in turn, suppress coding genes at a post-transcriptional level. There is now evidence that microRNAs may affect insulin secretion or insulin action, as they can alter pancreatic beta cells development, insulin production, as well as insulin signaling. Any molecular disorder that affects these pathways can deteriorate insulin resistance and lead to type 2 diabetes mellitus (T2DM) onset. Furthermore, the expression of several microRNAs is up- or down-regulated in the presence of diabetic microvascular complications (i.e., peripheral neuropathy, nephropathy, retinopathy, foot ulcers), as well as in patients with coronary heart disease, stroke, and peripheral artery disease. However, more evidence is needed, specifically regarding T2DM patients, to establish the use of such microRNAs as diagnostical biomarkers or therapeutic targets in daily practice.
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Affiliation(s)
- Stavroula A Paschou
- Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, 11527Athens, Greece
| | - Gerasimos Siasos
- Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, 11527Athens, Greece
| | - Niki Katsiki
- First Department of Internal Medicine, Diabetes Centre, Division of Endocrinology and Metabolism, AHEPA University Hospital, Thessaloniki, Greece
| | - Nikolaos Tentolouris
- Diabetes Center, First Department of Propaedeutic Internal Medicine, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitrios Tousoulis
- Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
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Chang J, Yan J, Li X, Liu N, Zheng R, Zhong Y. Update on the Mechanisms of Tubular Cell Injury in Diabetic Kidney Disease. Front Med (Lausanne) 2021; 8:661076. [PMID: 33859992 PMCID: PMC8042139 DOI: 10.3389/fmed.2021.661076] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 03/08/2021] [Indexed: 02/06/2023] Open
Abstract
Increasing evidence supports a role of proximal tubular (PT) injury in the progression of diabetic kidney disease (DKD), in patients with or without proteinuria. Research on the mechanisms of the PT injury in DKD could help us to identify potential new biomarkers and drug targets for DKD. A high glucose transport state and mismatched local hypoxia in the PT of diabetes patients may be the initiating factors causing PT injury. Other mechanism such as mitochondrial dysfunction, reactive oxygen species (ROS) overproduction, ER stress, and deficiency of autophagy interact with each other leading to more PT injury by forming a vicious circle. PT injury eventually leads to the development of tubulointerstitial inflammation and fibrosis in DKD. Many downstream signaling pathways have been demonstrated to mediate these diseased processes. This review focuses mostly on the novel mechanisms of proximal renal tubular injury in DKD and we believe such review could help us to better understand the pathogenesis of DKD and identify potential new therapies for this disease.
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Affiliation(s)
- Jingsheng Chang
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiayi Yan
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xueling Li
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ni Liu
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Rong Zheng
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yifei Zhong
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Ojima K, Muroya S, Wada H, Ogawa K, Oe M, Takimoto K, Nishimura T. Immature adipocyte-derived exosomes inhibit expression of muscle differentiation markers. FEBS Open Bio 2021; 11:768-781. [PMID: 33527775 PMCID: PMC7931241 DOI: 10.1002/2211-5463.13100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/24/2020] [Accepted: 01/27/2021] [Indexed: 11/16/2022] Open
Abstract
Exosomes are released from a variety of cells to communicate with recipient cells. Exosomes contain microRNAs (miRNAs), which are noncoding RNAs that suppress target genes. Our previous proteomic study (FEBS Open Bio 2016, 6, 816–826) demonstrated that 3T3‐L1 adipocytes secrete exosome components as well as growth factors, inspiring us to investigate what type of miRNA is involved in adipocyte‐secreted exosomes and what functions they carry out in recipient cells. Here, we profiled miRNAs in 3T3‐L1 adipocyte‐secreted exosomes and revealed suppression of muscle differentiation by adipocyte‐derived exosomes. Through our microarray analysis, we detected over 300 exosomal miRNAs during adipocyte differentiation. Exosomal miRNAs present during adipocyte differentiation included not only pro‐adipogenic miRNAs but also miRNAs associated with muscular dystrophy. Gene ontology analysis predicted that the target genes of miRNAs are associated primarily with transcriptional regulation. To further investigate whether adipocyte‐secreted exosomes regulate the expression levels of genes involved in muscle differentiation, we treated cultured myoblasts with adipocyte‐derived exosome fractions. Intriguingly, the expression levels of myogenic regulatory factors, Myog and Myf6, and other muscle differentiation markers, myosin heavy‐chain 3 and insulin‐like growth factor 2, were significantly downregulated in myoblasts treated with adipocyte‐derived exosomes. Immature adipocyte‐derived exosomes exhibited a stronger suppressive effect than mature adipocyte‐derived exosomes. Our results suggest that adipocytes suppress the expression levels of muscle differentiation‐associated genes in myoblasts via adipocyte‐secreted exosomes containing miRNAs.
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Affiliation(s)
- Koichi Ojima
- Muscle Biology Research Unit, Division of Animal Products Research, National Institute of Livestock and Grassland Science, NARO, Tsukuba, Japan
| | - Susumu Muroya
- Muscle Biology Research Unit, Division of Animal Products Research, National Institute of Livestock and Grassland Science, NARO, Tsukuba, Japan
| | - Hiromu Wada
- Ion Channel Laboratory, Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Japan
| | - Kotaro Ogawa
- Ion Channel Laboratory, Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Japan
| | - Mika Oe
- Muscle Biology Research Unit, Division of Animal Products Research, National Institute of Livestock and Grassland Science, NARO, Tsukuba, Japan
| | - Koichi Takimoto
- Ion Channel Laboratory, Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Japan
| | - Takanori Nishimura
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
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32
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Gu YY, Lu FH, Huang XR, Zhang L, Mao W, Yu XQ, Liu XS, Lan HY. Non-Coding RNAs as Biomarkers and Therapeutic Targets for Diabetic Kidney Disease. Front Pharmacol 2021; 11:583528. [PMID: 33574750 PMCID: PMC7870688 DOI: 10.3389/fphar.2020.583528] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 12/14/2020] [Indexed: 12/20/2022] Open
Abstract
Diabetic kidney disease (DKD) is the most common diabetic complication and is a leading cause of end-stage kidney disease. Increasing evidence shows that DKD is regulated not only by many classical signaling pathways but also by epigenetic mechanisms involving chromatin histone modifications, DNA methylation, and non-coding RNA (ncRNAs). In this review, we focus on our current understanding of the role and mechanisms of ncRNAs, including microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) in the pathogenesis of DKD. Of them, the regulatory role of TGF-β/Smad3-dependent miRNAs and lncRNAs in DKD is highlighted. Importantly, miRNAs and lncRNAs as biomarkers and therapeutic targets for DKD are also described, and the perspective of ncRNAs as a novel therapeutic approach for combating diabetic nephropathy is also discussed.
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Affiliation(s)
- Yue-Yu Gu
- Department of Nephrology and State Key Laboratory of Dampness Syndrome of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Fu-Hua Lu
- Department of Nephrology and State Key Laboratory of Dampness Syndrome of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiao-Ru Huang
- Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Guangdong-Hong Kong Joint Laboratory for Immunological and Genetic Kidney Diseases, Guangdong Academy of Medical Sciences, Guangdong Provincial People’s Hospital, Guangzhou, China
- Guangdong-Hong Kong Joint Laboratory for Immunological and Genetic Kidney Diseases, The Chinese University of Hong Kong, Hong Kong, China
| | - Lei Zhang
- Department of Nephrology and State Key Laboratory of Dampness Syndrome of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei Mao
- Department of Nephrology and State Key Laboratory of Dampness Syndrome of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xue-Qing Yu
- Guangdong-Hong Kong Joint Laboratory for Immunological and Genetic Kidney Diseases, Guangdong Academy of Medical Sciences, Guangdong Provincial People’s Hospital, Guangzhou, China
| | - Xu-Sheng Liu
- Department of Nephrology and State Key Laboratory of Dampness Syndrome of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hui-Yao Lan
- Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Guangdong-Hong Kong Joint Laboratory for Immunological and Genetic Kidney Diseases, Guangdong Academy of Medical Sciences, Guangdong Provincial People’s Hospital, Guangzhou, China
- Guangdong-Hong Kong Joint Laboratory for Immunological and Genetic Kidney Diseases, The Chinese University of Hong Kong, Hong Kong, China
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Decreased Urinary Levels of SIRT1 as Non-Invasive Biomarker of Early Renal Damage in Hypertension. Int J Mol Sci 2020; 21:ijms21176390. [PMID: 32887498 PMCID: PMC7503821 DOI: 10.3390/ijms21176390] [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: 08/06/2020] [Revised: 08/28/2020] [Accepted: 09/01/2020] [Indexed: 12/19/2022] Open
Abstract
Sirtuins have become important players in renal damage in hypertension and diabetes, but their value as biomarkers is poorly assessed. The aims of the study were to evaluate the levels of sirtuin1 (SIRT1), and two miRNAs that regulate SIRT1 expression in hypertensive patients with incipient renal damage with and without diabetes. We quantified urinary SIRT1 and claudin 1 (CLDN1) mRNA and miR34-a and miR-200a levels by quantitative real-time polymerase chain reaction (RT-qPCR) from patients and in cultured podocytes treated with high glucose and angiotensin II. Western blot and fluorescence analyses were also performed. We found decreased SIRT1 levels in patients with increased urinary albumin excretion (UAE), the lowest with diabetes presence, and a strong association with UAE, discriminating incipient renal damage. In vitro experiments also showed SIRT1 overall decreases in podocyte cultures under treatment conditions. In urine samples, miR-34a was reduced and miR-200a increased, both related to UAE levels. However, both miRNAs were generally increased in podocyte cultures under high glucose and angiotensin-II treatment. These results show a significant urinary SIRT1 decrease in albuminuric hypertensive patients, strongly associated with albuminuria, suggesting that SIRT1 could be a potential and non-invasive method to assess incipient renal damage in hypertensive patients.
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Li S, Jia Y, Xue M, Hu F, Zheng Z, Zhang S, Ren S, Yang Y, Si Z, Wang L, Guan M, Xue Y. Inhibiting Rab27a in renal tubular epithelial cells attenuates the inflammation of diabetic kidney disease through the miR-26a-5p/CHAC1/NF-kB pathway. Life Sci 2020; 261:118347. [PMID: 32853650 DOI: 10.1016/j.lfs.2020.118347] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 08/13/2020] [Accepted: 08/22/2020] [Indexed: 10/23/2022]
Abstract
The effect of exosomes on receptor cells participating in intercellular communication has been extensively studied, but the effect of exosomes on donor cells remains unclear. It has been reported that exosomes secreted by renal proximal tubular epithelial cells (PTECs) under different stimuli accelerate acute and chronic kidney diseases. This study aimed to explore whether inhibiting exosomal secretion in PTECs by knocking out Rab27a, a key exosome regulatory gene, inhibits the excessive inflammatory response in PTECs and delays diabetic kidney disease (DKD). First, we proved that the bovine serum albumin (BSA)-induced inflammatory response in HK-2 cells was inhibited by knocking out Rab27a and that Rab27a, IL-6, TNF-α and COL-1 expression was markedly increased in an HFD/STZ-induced diabetic mouse model. Furthermore, miR-26a-5p expression in exosomes secreted by BSA-treated HK-2 cells was significantly increased but correspondingly decreased in the cells; after knocking out Rab27a, miR-26a-5p levels in the cells rebounded. Next, we confirmed that a miR-26a-5p mimic suppressed the inflammatory response, while a miR-26a-5p inhibitor accelerated the inflammatory response. Then, we found that miR-26a-5p targets the 3'-untranslated region (UTR) of CHAC1. Furthermore, the inflammatory response and NF-κB signalling pathway activation induction by the miR-26a-5p inhibitor were abolished by CHAC1 knockout. Therefore, we conclude that inhibiting exosome secretion by BSA-induced PTECs promotes miR-26a-5p expression in cells, thereby inhibiting the CHAC1/NF-κB pathways to prevent the inflammatory response in PTECs and delaying the development of DKD. This study provides new insight into the pathogenic mechanism of exosomes and a new therapeutic target for DKD.
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Affiliation(s)
- Shuangshuang Li
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yijie Jia
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Meng Xue
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Endocrinology and Metabolism, Shenzhen People's Hospital, Second Affiliated Hospital of Jinan University, Shenzhen, Guangdong, China
| | - Fang Hu
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Endocrinology and Metabolism, The Fifth Affiliated Hospital Sun Yat-Sen University, Zhuhai, Guangdong, China
| | - Zongji Zheng
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shuting Zhang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Endocrinology, Guangdong Provincial People's Hospital/Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Shijing Ren
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yanlin Yang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zekun Si
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ling Wang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Meiping Guan
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yaoming Xue
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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Guo J, Zheng HJ, Zhang W, Lou W, Xia C, Han XT, Huang WJ, Zhang F, Wang Y, Liu WJ. Accelerated Kidney Aging in Diabetes Mellitus. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1234059. [PMID: 32774664 PMCID: PMC7407029 DOI: 10.1155/2020/1234059] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/25/2020] [Accepted: 06/25/2020] [Indexed: 02/07/2023]
Abstract
With aging, the kidney undergoes inexorable and progressive changes in structural and functional performance. These aging-related alterations are more obvious and serious in diabetes mellitus (DM). Renal accelerated aging under DM conditions is associated with multiple stresses such as accumulation of advanced glycation end products (AGEs), hypertension, oxidative stress, and inflammation. The main hallmarks of cellular senescence in diabetic kidneys include cyclin-dependent kinase inhibitors, telomere shortening, and diabetic nephropathy-associated secretory phenotype. Lysosome-dependent autophagy and antiaging proteins Klotho and Sirt1 play a fundamental role in the accelerated aging of kidneys in DM, among which the autophagy-lysosome system is the convergent mechanism of the multiple antiaging pathways involved in renal aging under DM conditions. Metformin and the inhibitor of sodium-glucose cotransporter 2 are recommended due to their antiaging effects independent of antihyperglycemia, besides angiotensin-converting enzyme inhibitors/angiotensin receptor blockers. Additionally, diet intervention including low protein and low AGEs with antioxidants are suggested for patients with diabetic nephropathy (DN). However, their long-term benefits still need further study. Exploring the interactive relationships among antiaging protein Klotho, Sirt1, and autophagy-lysosome system may provide insight into better satisfying the urgent medical needs of elderly patients with aging-related DN.
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Affiliation(s)
- Jing Guo
- Renal Research Institution; Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100700, China
| | - Hui Juan Zheng
- Renal Research Institution; Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100700, China
| | - Wenting Zhang
- Renal Research Institution; Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100700, China
| | - Wenjiao Lou
- Renal Research Institution; Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100700, China
| | - Chenhui Xia
- Renal Research Institution; Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100700, China
| | - Xue Ting Han
- Renal Research Institution; Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100700, China
| | - Wei Jun Huang
- Renal Research Institution; Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100700, China
| | - Fan Zhang
- Renal Research Institution; Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100700, China
| | - Yaoxian Wang
- Renal Research Institution; Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100700, China
| | - Wei Jing Liu
- Renal Research Institution; Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100700, China
- Institute of Nephrology, and Zhanjiang Key Laboratory of Prevention and Management of Chronic Kidney Disease, Guangdong Medical University, No. 57th South Renmin Road, Zhanjiang, Guangdong 524001, China
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Nie L, Liu Y, Zhang B, Zhao J. Application of Histone Deacetylase Inhibitors in Renal Interstitial Fibrosis. KIDNEY DISEASES (BASEL, SWITZERLAND) 2020; 6:226-235. [PMID: 32903948 DOI: 10.1159/000505295] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 12/09/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND Renal interstitial fibrosis is characterized by the accumulation of extracellular matrix proteins, which is a common feature of chronic kidney diseases. SUMMARY Increasing evidence has shown the aberrant expression of histone deacetylases (HDACs) in the development and progression of renal fibrosis, suggesting the possibility of utilizing HDAC inhibitor (HDACi) as therapeutics for renal fibrosis. Recent studies have successfully demonstrated the antifibrotic effects of HDACis in various animal models, which are associated with multiple signaling pathways including TGF-β signaling, EGRF signaling, signal transducer and activator of transcription 3 pathway, and JNK/Notch2 signaling. This review will focus on the utilization of HDACi as antifibrotic agents and its relative molecular mechanisms. KEY MESSAGES HDACis have shown promising results in antifibrotic therapy, and it is rational to anticipate that HDACis will improve clinical outcomes of renal fibrosis in the future.
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Affiliation(s)
- Ling Nie
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Army Medical University (The Third Military Medical University), Chongqing, China
| | - Yong Liu
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Army Medical University (The Third Military Medical University), Chongqing, China
| | - Bo Zhang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Army Medical University (The Third Military Medical University), Chongqing, China
| | - Jinghong Zhao
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Army Medical University (The Third Military Medical University), Chongqing, China
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Zhang J, Zhang L, Zha D, Wu X. Inhibition of miRNA‑135a‑5p ameliorates TGF‑β1‑induced human renal fibrosis by targeting SIRT1 in diabetic nephropathy. Int J Mol Med 2020; 46:1063-1073. [PMID: 32705273 PMCID: PMC7387088 DOI: 10.3892/ijmm.2020.4647] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 01/13/2020] [Indexed: 12/12/2022] Open
Abstract
miRNA-135a-5p upregulation has been identified in renal fibrosis in diabetic nephropathy (DN) with an incompletely known mechanism. Previous data showed that Sirtuin 1 (SIRT1) serves as a novel therapeutic target for DN and interact with the transforming growth factor-β/mothers against decapentaplegic homolog (TGF-β/Smad) signaling pathway. The aim of this study was to investigate the regulatory relationship between miR-135a-5p and SIRT1. The expression of miR-135a-5p and SIRT1 was detected using reverse transcription-quantitative PCR and western blotting. The renal fibrosis and Smad3 signaling pathway were assessed by western blotting, by analyzing protein expression of collegen1A1, α-smooth muscle actin (α-SMA), fibronectin (FN), epithelial-cadherin, Smad3 and phosphorylated Smad3 (p-Smad3). The target binding between miR-135a-5p and SIRT1 was predicted on TargetScan Human software, and confirmed by dual-luciferase reporter assay and RNA immu-noprecipitation. The results demonstrated miR-135a-5p is upregulated and SIRT1 was downregulated in the serum and renal tissue of DN patients, and TGFβ1-induced DN cell models in human HK-2 and HMCs. Knockdown of miR-135a-5p and overexpression of SIRT1 could inhibit TGFβ1-induced renal fibrosis in vitro. Moreover, SIRT1 was a downstream target for miR-135a-5p. Silencing of SIRT1 could abolish the suppressive role of miR-135a-5p knockdown in TGFβ1-induced HK-2 and HMCs. The TGFβ1 induced p-Smad3 expression in HK-2 and HMCs, which could be attenuated by miR-135a-5p knockdown via SIRT1. In conclusion, knockdown of miR-135a-5p inhibits TGFβ1-induced renal fibrosis by targeting SIRT1 and inactivating Smad3 signaling, providing a novel insight into miR-135a-5p as a potential therapeutic approach for DN.
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Affiliation(s)
- Juan Zhang
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Lian Zhang
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Dongqing Zha
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Xiaoyan Wu
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
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Long noncoding RNA NEAT1 is involved in the protective effect of Klotho on renal tubular epithelial cells in diabetic kidney disease through the ERK1/2 signaling pathway. Exp Mol Med 2020; 52:266-280. [PMID: 32054986 PMCID: PMC7062691 DOI: 10.1038/s12276-020-0381-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 12/10/2019] [Accepted: 01/01/2020] [Indexed: 11/16/2022] Open
Abstract
Klotho, an antiaging protein, has been shown to play a protective role in renal tubular epithelial-mesenchymal transition (EMT) during the development of diabetic kidney disease (DKD). Long noncoding RNAs (lncRNAs) participate in the progression of EMT in many diseases. However, the effect of Klotho on lncRNAs during the development of DKD is still unknown. In this study, we found that Klotho overexpression in high-fat diet (HFD)- and streptozotocin (STZ)-induced DKD mice significantly inhibited the expression of lncRNA nuclear-enriched abundant transcript 1 (Neat1). We demonstrated that NEAT1 was significantly upregulated in both bovine serum albumin (BSA)-stimulated HK2 cells and mice with HFD- and STZ-induced diabetes. In addition, we observed that Klotho displays colocalization with NEAT1. Furthermore, overexpression of Klotho can inhibit the high expression of NEAT1 in BSA-stimulated HK2 cells, while silencing Klotho can further upregulate the expression of NEAT1. Silencing NEAT1 in HK2 cells resulted in inhibition of the EMT-related markers alpha smooth muscle actin (α-SMA) and vimentin (VIM) and the renal fibrosis-related markers transforming growth factor-β1 (TGF-β1) and connective tissue growth factor (CTGF). The effect of NEAT1 on DKD was partly mediated by regulation of the ERK1/2 signaling pathway. Finally, we found that silencing NEAT1 can reverse the activation of EMT and fibrosis caused by Klotho silencing in a manner dependent on the ERK1/2 signaling pathway. These findings reveal a new regulatory pathway by which Klotho regulates ERK1/2 signaling via NEAT1 to protect against EMT and renal fibrosis, suggesting that NEAT1 is a potential therapeutic target for DKD. An anti-ageing protein called Klotho helps protect against kidney failure in mice and human cells by silencing a long non-coding RNA molecule. The regulatory RNA involved, known as NEAT1, promotes cellular transformations associated with the disease process. A team led by Yao-Ming Xue from Southern Medical University in Guangdong, China, showed that levels of NEAT1 are elevated in mouse models of diabetic kidney disease and in injured human kidney calls. The identification of NEAT1 in kidney disease thus provides a novel therapeutic target. After demonstrating that Klotho and NEAT1 interact directly with each other in cells, they experimentally boosted Klotho expression and observed suppressed levels of NEAT1. As a consequence, the cells displayed lower levels of the proteins linked to the progressive deposition of fibrosis in the kidneys.
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Wang(a) J, Wang S, Wang(b) J, Xiao M, Guo Y, Tang Y, Zhang J, Gu J. Epigenetic Regulation Associated With Sirtuin 1 in Complications of Diabetes Mellitus. Front Endocrinol (Lausanne) 2020; 11:598012. [PMID: 33537003 PMCID: PMC7848207 DOI: 10.3389/fendo.2020.598012] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 11/27/2020] [Indexed: 01/19/2023] Open
Abstract
Diabetes mellitus (DM) has been one of the largest health concerns of the 21st century due to the serious complications associated with the disease. Therefore, it is essential to investigate the pathogenesis of DM and develop novel strategies to reduce the burden of diabetic complications. Sirtuin 1 (SIRT1), a nicotinamide adenosine dinucleotide (NAD+)-dependent deacetylase, has been reported to not only deacetylate histones to modulate chromatin function but also deacetylate numerous transcription factors to regulate the expression of target genes, both positively and negatively. SIRT1 also plays a crucial role in regulating histone and DNA methylation through the recruitment of other nuclear enzymes to the chromatin. Furthermore, SIRT1 has been verified as a direct target of many microRNAs (miRNAs). Recently, numerous studies have explored the key roles of SIRT1 and other related epigenetic mechanisms in diabetic complications. Thus, this review aims to present a summary of the rapidly growing field of epigenetic regulatory mechanisms, as well as the epigenetic influence of SIRT1 on the development and progression of diabetic complications, including cardiomyopathy, nephropathy, and retinopathy.
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Affiliation(s)
- Jie Wang(a)
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shudong Wang
- Department of Cardiology at the First Hospital of Jilin University, Changchun, China
| | - Jie Wang(b)
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Mengjie Xiao
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yuanfang Guo
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yufeng Tang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Jingjing Zhang
- Department of Cardiology at the First Hospital of China Medical University, and Department of Cardiology at the People’s Hospital of Liaoning Province, Shenyang, China
| | - Junlian Gu
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan, China
- *Correspondence: Junlian Gu,
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40
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Liu Y, Li Q, Liang H, Xiang M, Tang D, Huang M, Tao Y, Ren M, Zhao M, Wang J, Shu L, He Z, Wang F, Li Y. MiR-34a Regulates Nasopharyngeal Carcinoma Radiosensitivity by Targeting SIRT1. Technol Cancer Res Treat 2020. [PMCID: PMC7436822 DOI: 10.1177/1533033820940424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background/Aims: Nasopharyngeal carcinoma is a common head and neck cancer in South China and Southeast Asia. Radiotherapy is the standard treatment for nasopharyngeal carcinoma. Accumulating evidence showed that the expression of miR-34a was abnormal in nasopharyngeal carcinoma. Here, this study investigates the effect of miR-34a on radiosensitivity of nasopharyngeal carcinoma cells and explored the underlying mechanisms. Methods: Reverse transcription quantitative polymerase chain reaction was used to analyze the expression of miR-34a in nasopharyngeal carcinoma cell lines and NP69 cells. The effect of miR-34a on radiosensitivity of nasopharyngeal carcinoma (CNE-1 cells) was evaluated by Cell Counting Kit-8, flow cytometry, and Transwell migration assays following transfection with miR-34a mimic. Luciferase reporter assay was used to assess the target genes of miR-34a. Results: In this study, it revealed that miR-34a was downregulated, while silent information regulator 1 was upregulated in nasopharyngeal carcinoma cell lines. The overexpression of miR-34a enhanced radiation-induced proliferation and migration inhibition and apoptosis in CNE-1 cells. Bioinformatics, Luciferase reporter, reverse transcription quantitative polymerase chain reaction, and Western blotting assays indicated that silent information regulator 1 is a direct target of miR-34a in nasopharyngeal carcinoma cells. Knockdown of silent information regulator 1 enhanced radiosensitivity of nasopharyngeal carcinoma cells as evidenced by increasing proliferation and migration inhibition and apoptosis after radiation exposure. Conclusion: In summary, our results indicated that the overexpression of miR-34a enhanced radiosensitivity of nasopharyngeal carcinoma cells by targeting silent information regulator 1. Further studies are warranted to investigate the potential use of miR-34a in the clinical management and treatment prediction of patients with nasopharyngeal carcinoma.
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Affiliation(s)
- Yang Liu
- Department of Clinical Laboratory, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Yunyan District, Guiyang, Guizhou Province, China
- National & Guizhou Joint Engineering Laboratory for Cell Engineering and Biomedicine Technique, Guizhou Medical University, Guiyang, Guizhou Province, China
| | - Qinshan Li
- National & Guizhou Joint Engineering Laboratory for Cell Engineering and Biomedicine Technique, Guizhou Medical University, Guiyang, Guizhou Province, China
| | - Huiling Liang
- Department of Clinical Laboratory, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Yunyan District, Guiyang, Guizhou Province, China
| | - Miaomiao Xiang
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Yunyan District, Guiyang, Guizhou Province, China
| | - Dongxin Tang
- Department of Clinical Laboratory, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Yunyan District, Guiyang, Guizhou Province, China
| | - Mei Huang
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Yunyan District, Guiyang, Guizhou Province, China
| | - Yixi Tao
- Department of Clinical Laboratory, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Yunyan District, Guiyang, Guizhou Province, China
| | - Min Ren
- Department of Clinical Laboratory, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Yunyan District, Guiyang, Guizhou Province, China
| | - Mei Zhao
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Yunyan District, Guiyang, Guizhou Province, China
| | - Jishi Wang
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Yunyan District, Guiyang, Guizhou Province, China
| | - Liping Shu
- National & Guizhou Joint Engineering Laboratory for Cell Engineering and Biomedicine Technique, Guizhou Medical University, Guiyang, Guizhou Province, China
| | - Zhixu He
- National & Guizhou Joint Engineering Laboratory for Cell Engineering and Biomedicine Technique, Guizhou Medical University, Guiyang, Guizhou Province, China
- Department of Pediatrics, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Feiqing Wang
- Department of Clinical Laboratory, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Yunyan District, Guiyang, Guizhou Province, China
| | - Yanju Li
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Yunyan District, Guiyang, Guizhou Province, China
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LncRNA LEGLTBC Functions as a ceRNA to Antagonize the Effects of miR-34a on the Downregulation of SIRT1 in Glucolipotoxicity-Induced INS-1 Beta Cell Oxidative Stress and Apoptosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:4010764. [PMID: 31737170 PMCID: PMC6815544 DOI: 10.1155/2019/4010764] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 05/09/2019] [Accepted: 06/17/2019] [Indexed: 02/06/2023]
Abstract
Type 2 diabetes mellitus is a chronic metabolic disorder characterized by elevated blood glucose and/or high serum free fatty acids. Chronic hyperlipidemia causes the dysfunction of pancreatic beta cells, which is aggravated in the presence of hyperglycemia (glucolipotoxicity). Long noncoding RNAs (lncRNAs) have been suggested to play key roles in type 1 diabetes mellitus development. However, their roles in glucolipotoxicity-induced beta cell dysfunction are not fully understood. In the present study, we identified the differentially expressed lncRNAs in INS-1 cells exposed to high glucose and palmitate (HG/PA). Among the dysregulated lncRNAs, NONRATT003679.2 (low expression in glucolipotoxicity-treated beta cells (LEGLTBC)) was involved in glucolipotoxicity-evoked rat islet beta cell damage. LEGLTBC functioned as a molecular sponge of miR-34a in INS-1 cells. Additionally, SIRT1 was identified as a target of miR-34a and LEGLTBC promoted SIRT1 expression by sponging miR-34a. The upregulation of LEGLTBC attenuated HG/PA-induced INS-1 cell injury through the promotion of SIRT1-mediated suppression of ROS accumulation and apoptosis. This is the first study to comprehensively identify the lncRNA expression profiling of HG/PA-treated INS-1 beta cells and to demonstrate that LEGLTBC functions as a competing endogenous RNA and regulates miR-34a/SIRT1-mediated oxidative stress and apoptosis in INS-1 cells undergoing glucolipotoxicity.
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Abstract
As one type of the most common endogenous short noncoding RNAs (ncRNAs), microRNAs (miRNAs) act as posttranscriptional regulators of gene expression and have great potential biological functions in the physiological and pathological processes of various diseases. The role of miRNAs in renal fibrosis has also attracted great attention in the previous 20 years, and new therapeutic strategies targeting miRNAs appear to be promising. Some researchers have previously reviewed the roles of miRNA in renal fibrosis disease, but numerous studies have emerged over the recent 5 years. It is necessary to update and summarize research progress in miRNAs in renal fibrosis. Thus, in this review, we summarize progress in miRNA-mediated renal fibrosis over the last 5 years and evaluate the biological functions of some miRNAs in different stages of renal fibrosis. Furthermore, we also expound the recent clinical applications of these miRNAs to provide new insights into the treatment of renal fibrosis disease.
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Affiliation(s)
- Youling Fan
- Department of Anesthesiology, The First People's Hospital of Kashgar, Xinjiang Province, China.,Department of Anesthesiology, Panyu Central Hospital, Guangzhou, Guangdong Province, China
| | - Hongtao Chen
- Department of Anesthesiology, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Zhenxing Huang
- Department of Anesthesiology, The First People's Hospital of Foshan, Foshan, Guangdong Province, China
| | - Hong Zheng
- Department of Anesthesiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Province, China
| | - Jun Zhou
- Department of Anesthesiology, The third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
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Jia Y, Zheng Z, Xue M, Zhang S, Hu F, Li Y, Yang Y, Zou M, Li S, Wang L, Guan M, Xue Y. Extracellular Vesicles from Albumin-Induced Tubular Epithelial Cells Promote the M1 Macrophage Phenotype by Targeting Klotho. Mol Ther 2019; 27:1452-1466. [PMID: 31208912 DOI: 10.1016/j.ymthe.2019.05.019] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 05/16/2019] [Accepted: 05/21/2019] [Indexed: 12/22/2022] Open
Abstract
Albumin absorbed by renal tubular epithelial cells induces inflammation and plays a key role in promoting diabetic kidney disease (DKD) progression. Macrophages are prominent inflammatory cells in the kidney, and their role there is dependent on their phenotypes. However, whether albuminuria influences macrophage phenotypes and underlying mechanisms during the development of DKD is still unclear. We found that M1 macrophage-related markers were increased in diabetes mellitus (DM) mouse renal tissues with the development of DKD, and coculture of extracellular vesicles (EVs) from human serum albumin (HSA)-induced HK-2 cells with macrophages induced macrophage M1 polarization in the presence of lipopolysaccharide (LPS). Through a bioinformatic analysis, miR-199a-5p was selected and found to be increased in EVs from HSA-induced HK-2 cells and in urinary EVs from DM patients with macroalbuminuria. Tail-vein injection of DM mice with EVs from HSA-induced HK-2 cells induced kidney macrophage M1 polarization and accelerated the progression of DKD through miR-199a-5p. miR-199a-5p exerted its effect by targeting Klotho, and Klotho induced macrophage M2 polarization through the Toll-like receptor 4 (TLR4) pathway both in vivo and in vitro. In summary, miR-199a-5p from HSA-stimulated HK-2 cell-derived EVs induces M1 polarization by targeting the Klotho/TLR4 pathway and further accelerates the progression of DKD.
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Affiliation(s)
- Yijie Jia
- Department of Endocrinology & Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zongji Zheng
- Department of Endocrinology & Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Meng Xue
- Department of Endocrinology & Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Endocrinology and Metabolism, Shenzhen People's Hospital, Second Affiliated Hospital of Jinan University, Shenzhen, Guangdong, China
| | - Shuting Zhang
- Department of Endocrinology & Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Endocrinology, Guangdong General Hospital/Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Fang Hu
- Department of Endocrinology & Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Endocrinology and Metabolism, The Fifth Affiliated Hospital Sun Yat-Sen University, Zhuhai, Guangdong, China
| | - Yang Li
- Department of Endocrinology & Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yanlin Yang
- Department of Endocrinology & Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Meina Zou
- Department of Endocrinology & Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shuangshuang Li
- Department of Endocrinology & Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ling Wang
- Department of Endocrinology & Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Meiping Guan
- Department of Endocrinology & Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yaoming Xue
- Department of Endocrinology & Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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Wu J, Liang W, Tian Y, Ma F, Huang W, Jia Y, Jiang Z, Wu H. Inhibition of P53/miR-34a improves diabetic endothelial dysfunction via activation of SIRT1. J Cell Mol Med 2019; 23:3538-3548. [PMID: 30793480 PMCID: PMC6484332 DOI: 10.1111/jcmm.14253] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/28/2019] [Accepted: 02/06/2019] [Indexed: 12/11/2022] Open
Abstract
Endothelial dysfunction contributes to diabetic macrovascular complications, resulting in high mortality. Recent findings demonstrate a pathogenic role of P53 in endothelial dysfunction, encouraging the investigation of the effect of P53 inhibition on diabetic endothelial dysfunction. Thus, high glucose (HG)‐treated endothelial cells (ECs) were subjected to pifithrin‐α (PFT‐α)—a specific inhibitor of P53, or P53‐small interfering RNA (siRNA), both of which attenuated the HG‐induced endothelial inflammation and oxidative stress. Moreover, inhibition of P53 by PFT‐α or P53‐siRNA prohibited P53 acetylation, decreased microRNA‐34a (miR‐34a) level, leading to a dramatic increase in sirtuin 1 (SIRT1) protein level. Interestingly, the miR‐34a inhibitor (miR‐34a‐I) and PFT‐α increased SIRT1 protein level and alleviated the HG‐induced endothelial inflammation and oxidative stress to a similar extent; however, these effects of PFT‐α were completely abrogated by the miR‐34a mimic. In addition, SIRT1 inhibition by EX‐527 or Sirt1‐siRNA completely abolished miR‐34a‐I's protection against HG‐induced endothelial inflammation and oxidative stress. Furthermore, in the aortas of streptozotocin‐induced diabetic mice, both PFT‐α and miR‐34a‐I rescued the inflammation, oxidative stress and endothelial dysfunction caused by hyperglycaemia. Hence, the present study has uncovered a P53/miR‐34a/SIRT1 pathway that leads to endothelial dysfunction, suggesting that P53/miR‐34a inhibition could be a viable strategy in the management of diabetic macrovascular diseases.
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Affiliation(s)
- Junduo Wu
- Department of Cardiology, The Second Hospital of Jilin University, Changchun, Jilin, China.,Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, Heilongjiang, China
| | - Wenzhao Liang
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China.,Occupational and Environmental Medicine Center, Linköping University, Linköping, Sweden
| | - Yueli Tian
- Department of Gastroenteric Medicine, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Fuzhe Ma
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Wenlin Huang
- School of Science and Technology, Georgia Gwinnett College, Lawrenceville, Georgia
| | - Ye Jia
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, California
| | - Ziping Jiang
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Hao Wu
- Department of Toxicology and Nutrition, School of Public Health, Shandong University, Jinan, Shandong, China
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45
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Liu Y, Bi X, Xiong J, Han W, Xiao T, Xu X, Yang K, Liu C, Jiang W, He T, Yu Y, Li Y, Zhang J, Zhang B, Zhao J. MicroRNA-34a Promotes Renal Fibrosis by Downregulation of Klotho in Tubular Epithelial Cells. Mol Ther 2019; 27:1051-1065. [PMID: 30853453 DOI: 10.1016/j.ymthe.2019.02.009] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 02/01/2019] [Accepted: 02/06/2019] [Indexed: 12/28/2022] Open
Abstract
Renal fibrosis is the main pathological characteristic of chronic kidney disease (CKD), whereas the underlying mechanisms of renal fibrosis are not clear yet. Herein, we found an increased expression of microRNA-34a (miR-34a) in renal tubular epithelial cells of patients with renal fibrosis and mice undergoing unilateral ureteral obstruction (UUO). In miR-34a-/- mice, miR-34a deficiency attenuated the progression of renal fibrosis following UUO surgery. The miR-34a overexpression promoted epithelial-to-mesenchymal transition (EMT) in cultured human renal tubular epithelial HK-2 cells, which was accompanied by sharp downregulation of Klotho, an endogenous inhibitor of renal fibrosis. Luciferase reporter assay revealed that miR-34a downregulated Klotho expression though direct binding with the 3' UTR of Klotho. Conversely, overexpression of Klotho prevented miR-34a-induced EMT in HK-2 cells. Furthermore, results showed that miR-34a was induced by transforming growth factor β1 (TGF-β1) through p53 activation, whereas dihydromyricetin could inhibit TGF-β1-induced miR-34a overexpression. Accordingly, dihydromyricetin administration dramatically restored the aberrant upregulation of miR-34a and Klotho reduction in obstructed kidney, and markedly ameliorated renal fibrosis in the Adriamycin nephropathy and UUO model mice. These findings suggested that miR-34a plays an important role in the progression of renal fibrosis, which provides new insights into the pathogenesis and treatment of CKD.
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Affiliation(s)
- Yong Liu
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Xianjin Bi
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Jiachuan Xiong
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Wenhao Han
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Tangli Xiao
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Xinli Xu
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Ke Yang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Chi Liu
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Wei Jiang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Ting He
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Yanlin Yu
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Yan Li
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Jingbo Zhang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Bo Zhang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Jinghong Zhao
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China.
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46
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Wang W, Sun W, Cheng Y, Xu Z, Cai L. Role of sirtuin-1 in diabetic nephropathy. J Mol Med (Berl) 2019; 97:291-309. [PMID: 30707256 PMCID: PMC6394539 DOI: 10.1007/s00109-019-01743-7] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 12/29/2018] [Accepted: 01/09/2019] [Indexed: 02/06/2023]
Abstract
Diabetic nephropathy (DN) is a research priority for scientists around the world because of its high prevalence and poor prognosis. Although several mechanisms have been shown to be involved in its pathogenesis and many useful drugs have been developed, the management of DN remains challenging. Increasing amounts of evidence show that silent information regulator 2 homolog 1 (sirtuin-1), a nicotinamide adenine dinucleotide (NAD+)–dependent protein deacetylase, plays a crucial role in the pathogenesis and development of DN. Clinical data show that gene polymorphisms of sirtuin-1 affect patient vulnerability to DN. In addition, upregulation of sirtuin-1 attenuates DN in various experimental models of diabetes and in renal cells, including podocytes, mesangial cells, and renal proximal tubular cells, incubated with high concentrations of glucose or advanced glycation end products. Mechanistically, sirtuin-1 has its renoprotective effects by modulating metabolic homeostasis and autophagy, resisting apoptosis and oxidative stress, and inhibiting inflammation through deacetylation of histones and the transcription factors p53, forkhead box group O, nuclear factor-κB, hypoxia-inducible factor-1α, and others. Furthermore, some microRNAs have been implicated in the progression of DN because they target sirtuin-1 mRNA. Several synthetic drugs and natural compounds have been identified that upregulate the expression and activity of sirtuin-1, which protects against DN. The present review will summarize advances in knowledge regarding the role of sirtuin-1 in the pathogenesis of DN. The available evidence implies that sirtuin-1 has great potential as a clinical target for the prevention and treatment of diabetes.
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Affiliation(s)
- Wanning Wang
- Department of Nephrology, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021 Jilin Province China
- Pediatric Research Institute, Department of Pediatrics, The University of Louisville School of Medicine, Louisville, KY 40292 USA
| | - Weixia Sun
- Department of Nephrology, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021 Jilin Province China
| | - Yanli Cheng
- Department of Nephrology, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021 Jilin Province China
| | - Zhonggao Xu
- Department of Nephrology, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021 Jilin Province China
| | - Lu Cai
- Pediatric Research Institute, Department of Pediatrics, The University of Louisville School of Medicine, Louisville, KY 40292 USA
- Departments of Radiation Oncology, Pharmacology and Toxicology, The University of Louisville School of Medicine, 570 S. Preston Str., Baxter I, Suite 304F, Louisville, KY 40292 USA
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47
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Zhao H, Ma SX, Shang YQ, Zhang HQ, Su W. microRNAs in chronic kidney disease. Clin Chim Acta 2019; 491:59-65. [PMID: 30639583 DOI: 10.1016/j.cca.2019.01.008] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 01/09/2019] [Accepted: 01/09/2019] [Indexed: 12/15/2022]
Abstract
Chronic kidney disease (CKD) results in high morbidity and mortality worldwide causing a huge socioeconomic burden. MicroRNA (miRNA) exert critical regulatory functions by targeting downstream genes and have been associated with many pathophysiologic processes including CKD. In fact, many studies have shown that the expression of various miRNAs was significantly changed in CKD. Current investigations have focused on revealing the relationship between miRNAs and CKD states including diabetic nephropathy, lupus nephritis, focal segmental glomerulosclerosis and IgA nephropathy. In this review, we summarize the latest advances elucidating miRNA involvement in the progression of CKD and demonstrate that miRNAs have the potential to be effective biomarkers and therapeutic targets for subsequent treatment.
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Affiliation(s)
- Hui Zhao
- Faculty of Life Science & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, Shaanxi 710069, China
| | - Shi-Xing Ma
- Department of Nephrology, Baoji Central Hospital, No. 8 Jiangtan Road, Baoji, Shaanxi 721008, China
| | - You-Quan Shang
- Department of Nephrology, Baoji Central Hospital, No. 8 Jiangtan Road, Baoji, Shaanxi 721008, China
| | - Huan-Qiao Zhang
- Department of Nephrology, Baoji Central Hospital, No. 8 Jiangtan Road, Baoji, Shaanxi 721008, China
| | - Wei Su
- Department of Nephrology, Baoji Central Hospital, No. 8 Jiangtan Road, Baoji, Shaanxi 721008, China.
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48
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Tang J, Yao D, Yan H, Chen X, Wang L, Zhan H. The Role of MicroRNAs in the Pathogenesis of Diabetic Nephropathy. Int J Endocrinol 2019; 2019:8719060. [PMID: 31885563 PMCID: PMC6914872 DOI: 10.1155/2019/8719060] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/07/2019] [Accepted: 10/22/2019] [Indexed: 02/08/2023] Open
Abstract
Diabetic nephropathy (DN) is one of the most common microvascular complications in diabetic patients; it is also an important cause of renal dysfunction, renal fibrosis, and end-stage renal disease. Unfortunately, the pathogenesis of DN is complex and has not yet been fully elucidated; hence, the pathogenesis of DN to determine effective treatments of crucial importance is deeply explored. Early DN research focuses on hemodynamic changes and metabolic disorders, and recent studies have shown the regulatory role of microRNAs (miRNAs) in genes, which may be a new diagnostic marker and therapeutic target for diabetic nephropathy. In this review, we summarize the recent advances in the clinical value and molecular mechanisms of miRNAs in DN, providing new ideas for the diagnosis and treatment of DN.
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Affiliation(s)
- Jian Tang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan, China
| | - Deyi Yao
- Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan, China
| | - Haiying Yan
- Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan, China
| | - Xing Chen
- Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan, China
| | - Linjia Wang
- Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan, China
| | - Huakui Zhan
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan, China
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49
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Yang YL, Hu F, Xue M, Jia YJ, Zheng ZJ, Li Y, Xue YM. Early growth response protein-1 upregulates long noncoding RNA Arid2-IR to promote extracellular matrix production in diabetic kidney disease. Am J Physiol Cell Physiol 2018; 316:C340-C352. [PMID: 30462533 DOI: 10.1152/ajpcell.00167.2018] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Diabetic kidney disease (DKD) has surpassed chronic glomerulonephritis as the leading cause of end-stage renal disease. Previously, we showed that early growth response protein-1 (Egr1) plays a key role in DKD by enhancing mesangial cell proliferation and extracellular matrix (ECM) production. The long noncoding RNA (lncRNA) AT-rich interactive domain 2-IR (Arid2-IR) has been identified as a mothers against decapentaplegic homolog 3 (Smad3)-associated lncRNA in unilateral ureteral obstructive kidney disease. However, the effect of Egr1 on Arid2-IR in the development of DKD is still unknown. In this study, we found that Arid2-IR was increased in mice with high-fat diet and streptozotocin-induced type 2 diabetes and in mouse mesangial cells cultured with high glucose to mimic diabetes. Knockdown of Arid2-IR in mouse mesangial cells reduced the high expression levels of collagen-α1(I) (Col1a1) and α-smooth muscle actin (α-SMA) induced by high glucose. Furthermore, Arid2-IR expression changed the increased expression of Col1a1 and α-SMA caused by overexpression of Egr1. Overall, these data suggest that increased Arid2-IR likely contributes to ECM production in DKD and that Egr1 promotes ECM production in DKD partly by upregulating Arid2-IR. Thus, Arid2-IR may be a new target in the treatment of DKD.
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Affiliation(s)
- Yan-Lin Yang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University , Guangzhou , China
| | - Fang Hu
- Department of Endocrinology and Metabolism, The Fifth Affiliated Hospital of Sun Yat-Sen University , Zhuhai , China
| | - Meng Xue
- Department of Endocrinology and Metabolism, Shenzhen People's Hospital, Second Affiliated Hospital of Jinan University , Shenzhen , China
| | - Yi-Jie Jia
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University , Guangzhou , China
| | - Zong-Ji Zheng
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University , Guangzhou , China
| | - Yang Li
- Department of Geriatrics, Zhu Jiang Hospital, Southern Medical University , Guangzhou , China
| | - Yao-Ming Xue
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University , Guangzhou , China
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50
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Zhou L, Xu DY, Sha WG, Shen L, Lu GY. Long non-coding RNA MALAT1 interacts with transcription factor Foxo1 to regulate SIRT1 transcription in high glucose-induced HK-2 cells injury. Biochem Biophys Res Commun 2018; 503:849-855. [DOI: 10.1016/j.bbrc.2018.06.086] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 06/17/2018] [Indexed: 10/28/2022]
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