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Intestinal microbiota-derived membrane vesicles and their role in chronic kidney disease. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166478. [PMID: 35787946 DOI: 10.1016/j.bbadis.2022.166478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 06/25/2022] [Accepted: 06/27/2022] [Indexed: 12/12/2022]
Abstract
Intestinal microbiota-derived membrane vesicles (MVs) play essential roles in immunomodulation and maintenance of the intestinal micro-ecosystem. The relationship between MVs and chronic kidney disease (CKD) has remained undefined. This review provides a survey of the structure and biological function of different vesicle types and summarizes the possible pathogenic mechanisms mediated by MVs, which may be of great clinical significance in the diagnosis and treatment of chronic kidney disease.
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Mafi A, Yadegar N, Salami M, Salami R, Vakili O, Aghadavod E. Circular RNAs; powerful microRNA sponges to overcome diabetic nephropathy. Pathol Res Pract 2021; 227:153618. [PMID: 34649056 DOI: 10.1016/j.prp.2021.153618] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 09/09/2021] [Accepted: 09/11/2021] [Indexed: 12/13/2022]
Abstract
Diabetic nephropathy (DN), also known as diabetic kidney disease (DKD), is a drastic renal complication of type 1 and type 2 diabetes mellitus (DM). Poorly controlled DM over the years, may disrupt kidneys' blood vessels, leading to the hypertension (HTN) and DN onset. During DN, kidneys' waste filtering ability becomes disturbed. Being on a healthy lifestyle and controlling both DM and HTN are now the best proceedings to prevent or at least delay DN occurrence. Unfortunately, about one-fourth of diabetic individuals eventually experience the corresponding renal failure, and thus it is critical to discover effective diagnostic biomarkers and therapeutic strategies to combat DN. In the past few years, circular RNAs (circRNAs), as covalently closed endogenous non-coding RNAs (ncRNAs), are believed to affect DN pathogenesis in a positive manner. CircRNAs are able to impact different cellular processes and signaling pathways by targeting biological molecules or various molecular mechanisms. Still, as a key regulatory axis, circRNAs can select miRNAs as their molecular targets, in which they are considered as miRNA sponges. In this way, circRNA-induced suppression of particular miRNAs may prevent from DN progression or promotes the DN elimination. Since the expression of circRNAs has also been reported to be increased in DN-associated cells and tissues, they can be employed as either diagnostic biomarkers or therapeutic targets.
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Affiliation(s)
- Alireza Mafi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Negar Yadegar
- Department of Medical Laboratory Sciences, School of Paramedical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Marziyeh Salami
- Department of Biochemistry, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran.
| | - Raziyeh Salami
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran.
| | - Omid Vakili
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Esmat Aghadavod
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran; Department of Clinical Biochemistry, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
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Sun T, Liu J, Xie C, Yang J, Zhao L, Yang J. Metformin attenuates diabetic renal injury via the AMPK-autophagy axis. Exp Ther Med 2021; 21:578. [PMID: 33850550 PMCID: PMC8027752 DOI: 10.3892/etm.2021.10010] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 11/19/2020] [Indexed: 12/17/2022] Open
Abstract
Diabetic nephropathy (DN) is a clinical condition characterized by kidney damage that is observed in patients with diabetes. DN is the main cause of end-stage renal disease (ESRD), which is the final stage of chronic kidney disease. Increasing evidence suggests that metformin, a characteristic oral hypoglycemic drug used for treating diabetes, exerts beneficial effects on various medical conditions and diseases, including cancer, cardiovascular diseases and thyroid-related disorders. However, the impact of metformin on DN remains unknown. The present study investigated whether metformin could attenuate the inflammatory response, fibrosis and increased oxidative stress observed during DN in diabetic/dyslipidemic (db/db) mice. The kidneys of the mice (12-16 weeks) were isolated for immunohistochemistry and western blotting. The results demonstrated that metformin significantly reduced the oxidative damage and fibrosis in the kidneys of db/db mice. Furthermore, metformin treatment significantly inhibited the generation of inflammatory cytokines, including TNF-α and IL-1β in db/db mice. These effects were induced by the activation of the AMP-activated protein kinase (AMPK) pathway, which was mediated by increased phosphorylation of AMPK and mammalian target of rapamycin (mTOR), resulting in autophagy and the simultaneous decrease in reactive oxygen species production, cell apoptosis and inflammatory response. These findings suggested that metformin may reduce DN damage via regulation of the AMPK-mTOR-autophagy axis and indicated that metformin may be considered as a potential target in the treatment of DN.
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Affiliation(s)
- Tingli Sun
- Department of Nephrology, General Hospital of Daqing Oil Field, Daqing, Heilongjiang 163001, P.R. China
| | - Jizhang Liu
- Department of Nephrology, General Hospital of Daqing Oil Field, Daqing, Heilongjiang 163001, P.R. China
| | - Changying Xie
- Department of Nephrology, General Hospital of Daqing Oil Field, Daqing, Heilongjiang 163001, P.R. China
| | - Jun Yang
- Department of Nephrology, General Hospital of Daqing Oil Field, Daqing, Heilongjiang 163001, P.R. China
| | - Lijie Zhao
- Department of Geriatrics, General Hospital of Daqing Oil Field, Daqing, Heilongjiang 163001, P.R. China
| | - Jingbo Yang
- Department of Nephrology, General Hospital of Daqing Oil Field, Daqing, Heilongjiang 163001, P.R. China
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Mitrofanova A, Fontanella AM, Merscher S, Fornoni A. Lipid deposition and metaflammation in diabetic kidney disease. Curr Opin Pharmacol 2020; 55:60-72. [PMID: 33137677 DOI: 10.1016/j.coph.2020.09.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 07/16/2020] [Accepted: 09/09/2020] [Indexed: 12/14/2022]
Abstract
A critical link between metabolic disorders and a form of low-grade systemic and chronic inflammation has been recently established and named 'Metaflammation'. Metaflammation has been recognized as a key mediator of both microvascular and macrovascular complications of diabetes and as a significant contributor to the development of diabetic kidney disease (DKD). The goal of this review is to summarize the contribution of diabetes-induced inflammation and the related signaling pathways to diabetic complications, with a particular focus on how innate immunity and lipid metabolism influence each other.
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Affiliation(s)
- Alla Mitrofanova
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami, Miller School of Medicine, Miami, FL, USA; Peggy and Harold Katz Family Drug Discovery Center, University of Miami, Miller School of Medicine, Miami, FL, USA; Department of Surgery, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Antonio M Fontanella
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami, Miller School of Medicine, Miami, FL, USA; Peggy and Harold Katz Family Drug Discovery Center, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Sandra Merscher
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami, Miller School of Medicine, Miami, FL, USA; Peggy and Harold Katz Family Drug Discovery Center, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Alessia Fornoni
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami, Miller School of Medicine, Miami, FL, USA; Peggy and Harold Katz Family Drug Discovery Center, University of Miami, Miller School of Medicine, Miami, FL, USA.
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Tang B, Li W, Ji TT, Li XY, Qu X, Feng L, Bai S. Circ-AKT3 inhibits the accumulation of extracellular matrix of mesangial cells in diabetic nephropathy via modulating miR-296-3p/E-cadherin signals. J Cell Mol Med 2020; 24:8779-8788. [PMID: 32597022 PMCID: PMC7412430 DOI: 10.1111/jcmm.15513] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 05/25/2020] [Accepted: 05/28/2020] [Indexed: 12/14/2022] Open
Abstract
Diabetic nephropathy is a leading cause of end-stage renal disease globally. The vital role of circular RNAs (circRNAs) has been reported in diabetic nephropathy progression, but the molecular mechanism linking diabetic nephropathy to circRNAs remains elusive. In this study, we investigated the significant function of circ-AKT3/miR-296-3p/E-cadherin regulatory network on the extracellular matrix accumulation in mesangial cells in diabetic nephropathy. The expression of circ-AKT3 and fibrosis-associated proteins, including fibronectin, collagen type I and collagen type IV, was assessed via RT-PCR and Western blot analysis in diabetic nephropathy animal model and mouse mesangial SV40-MES13 cells. Luciferase reporter assays were used to investigate interactions among E-cadherin, circ-AKT3 and miR-296-3p in mouse mesangial SV40-MES13 cells. Cell apoptosis was evaluated via flow cytometry. The level of circ-AKT3 was significantly lower in diabetic nephropathy mice model group and mouse mesangial SV40-MES13 cells treated with high-concentration (25 mmol/L) glucose. In addition, circ-AKT3 overexpression inhibited the level of fibrosis-associated protein, such as fibronectin, collagen type I and collagen type IV. Circ-AKT3 overexpression also inhibited the apoptosis of mouse mesangial SV40-MES13 cells treated with high glucose. Luciferase reporter assay and bioinformatics tools identified that circ-AKT3 could act as a sponge of miR-296-3p and E-cadherin was the miR-296-3p direct target. Moreover, circ-AKT3/miR-296-3p/E-cadherin modulated the extracellular matrix of mouse mesangial cells in high-concentration (25 mmol/L) glucose, inhibiting the synthesis of related extracellular matrix protein. In conclusion, circ-AKT3 inhibited the extracellular matrix accumulation in diabetic nephropathy mesangial cells through modulating miR-296-3p/E-cadherin signals, which might offer novel potential opportunities for clinical diagnosis targets and therapeutic biomarkers for diabetic nephropathy.
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Affiliation(s)
- Bo Tang
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Weiliang Li
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Ting-Ting Ji
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Xiao-Ying Li
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Xiaolei Qu
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Linhong Feng
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Shoujun Bai
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
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Sun T, Liu Y, Liu L, Ma F. MicroRNA-544 attenuates diabetic renal injury via suppressing glomerulosclerosis and inflammation by targeting FASN. Gene 2020; 723:143986. [DOI: 10.1016/j.gene.2019.143986] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 07/13/2019] [Accepted: 07/15/2019] [Indexed: 12/19/2022]
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Liquid biopsy biomarkers of renal interstitial fibrosis based on urinary exosome. Exp Mol Pathol 2018; 105:223-228. [DOI: 10.1016/j.yexmp.2018.08.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 08/12/2018] [Accepted: 08/13/2018] [Indexed: 01/22/2023]
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Chaudhary R, Walder KR, Hagemeyer CE, Kanwar JR. Psammomys obesus: a Natural Diet-Controlled Model for Diabetes and Cardiovascular Diseases. Curr Atheroscler Rep 2018; 20:46. [PMID: 30019290 DOI: 10.1007/s11883-018-0746-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW This review specifically summarises and reports terrestrial mammals of the gerbil subfamily, known as Israeli sand rats or Psammomys obesus (P. obesus) as a diet-controlled, unique, polygenic rodent model for research in the areas of obesity, type 2 diabetes, and cardiovascular diseases. The animal model closely mimics phenotypic and pathophysiological resemblance with human populations. RECENT FINDINGS The physiological status and biochemical composition in P. obesus can be manipulated effectively by controlling its nutritional intake, making it a natural model for cardiovascular and diabetic research. Humans exhibit remarkable disparity in physiology and pathology, which are inter-dependent factors. However, variations in these factors in most animal models currently being used for cardiovascular/diabetes research are insignificant. Consequently, it is a necessity to identify and develop animal models exhibiting physiological variations mimicking human pathological conditions. We have compiled research developments conducted with this rodent model manifesting pathophysiology, closely mimicking that in human beings, thereby enabling better translation of novel therapeutic and diagnostic discoveries.
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Affiliation(s)
- Rajneesh Chaudhary
- Australian Centre for Blood Diseases, Faculty of Medicine, Nursing and Health Sciences, Monash University, Monash AMREP building, Level 2, Walkway, via The Alfred Centre, 99 Commercial Road, Melbourne, VIC, 3004, Australia.
- School of Medicine, Centre for Molecular and Medical Research, Faculty of Health, Deakin University, School of Medicine, Deakin University - 75 Pigdons Rd, Geelong, VIC, 3216, Australia.
| | - Ken R Walder
- School of Medicine, Centre for Molecular and Medical Research, Faculty of Health, Deakin University, School of Medicine, Deakin University - 75 Pigdons Rd, Geelong, VIC, 3216, Australia
| | - Christoph E Hagemeyer
- Australian Centre for Blood Diseases, Faculty of Medicine, Nursing and Health Sciences, Monash University, Monash AMREP building, Level 2, Walkway, via The Alfred Centre, 99 Commercial Road, Melbourne, VIC, 3004, Australia
| | - Jagat R Kanwar
- School of Medicine, Centre for Molecular and Medical Research, Faculty of Health, Deakin University, School of Medicine, Deakin University - 75 Pigdons Rd, Geelong, VIC, 3216, Australia
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