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Lino M, Garcia-Martin R, Muñoz VR, Ruiz GP, Nawaz A, Brandão BB, Dreyfus J, Pan H, Kahn CR. Multi-step regulation of microRNA expression and secretion into small extracellular vesicles by insulin. Cell Rep 2024; 43:114491. [PMID: 39002127 DOI: 10.1016/j.celrep.2024.114491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 06/05/2024] [Accepted: 06/26/2024] [Indexed: 07/15/2024] Open
Abstract
Tissues release microRNAs (miRNAs) in small extracellular vesicles (sEVs) including exosomes, which can regulate gene expression in distal cells, thus acting as modulators of local and systemic metabolism. Here, we show that insulin regulates miRNA secretion into sEVs from 3T3-L1 adipocytes and that this process is differentially regulated from cellular expression. Thus, of the 53 miRNAs upregulated and 66 miRNAs downregulated by insulin in 3T3-L1 sEVs, only 12 were regulated in parallel in cells. Insulin regulated this process in part by phosphorylating hnRNPA1, causing it to bind to AU-rich motifs in miRNAs, mediating their secretion into sEVs. Importantly, 43% of insulin-regulated sEV-miRNAs are implicated in obesity and insulin resistance. These include let-7 and miR-103, which we show regulate insulin signaling in AML12 hepatocytes. Together, these findings demonstrate an important layer to insulin's regulation of adipose biology and provide a mechanism of tissue crosstalk in obesity and other hyperinsulinemic states.
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Affiliation(s)
- Marsel Lino
- Joslin Diabetes Center, Harvard Medical School, Harvard University, Boston, MA, USA; Harvard Medical School, Harvard University, Boston, MA, USA
| | - Ruben Garcia-Martin
- Joslin Diabetes Center, Harvard Medical School, Harvard University, Boston, MA, USA; Harvard Medical School, Harvard University, Boston, MA, USA
| | - Vitor Rosetto Muñoz
- Joslin Diabetes Center, Harvard Medical School, Harvard University, Boston, MA, USA; Harvard Medical School, Harvard University, Boston, MA, USA
| | - Gabriel Palermo Ruiz
- Joslin Diabetes Center, Harvard Medical School, Harvard University, Boston, MA, USA
| | - Allah Nawaz
- Joslin Diabetes Center, Harvard Medical School, Harvard University, Boston, MA, USA; Harvard Medical School, Harvard University, Boston, MA, USA
| | - Bruna Brasil Brandão
- Joslin Diabetes Center, Harvard Medical School, Harvard University, Boston, MA, USA; Harvard Medical School, Harvard University, Boston, MA, USA
| | - Jonathan Dreyfus
- Joslin Diabetes Center, Harvard Medical School, Harvard University, Boston, MA, USA
| | - Hui Pan
- Joslin Diabetes Center, Harvard Medical School, Harvard University, Boston, MA, USA
| | - C Ronald Kahn
- Joslin Diabetes Center, Harvard Medical School, Harvard University, Boston, MA, USA; Harvard Medical School, Harvard University, Boston, MA, USA.
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Ali H, Malik MZ, Abu-Farha M, Abubaker J, Cherian P, Al-Khairi I, Nizam R, Jacob S, Bahbahani Y, Al Attar A, Thanaraj TA, Al-Mulla F. Dysregulated Urinary Extracellular Vesicle Small RNAs in Diabetic Nephropathy: Implications for Diagnosis and Therapy. J Endocr Soc 2024; 8:bvae114. [PMID: 38966710 PMCID: PMC11222982 DOI: 10.1210/jendso/bvae114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Indexed: 07/06/2024] Open
Abstract
Background Diabetic nephropathy (DN) represents a major chronic kidney disorder and a leading cause of end-stage renal disease (ESRD). Small RNAs have been showing great promise as diagnostic markers as well as drug targets. Identifying dysregulated micro RNAs (miRNAs) could help in identifying disease biomarkers and investigation of downstream interactions, shedding light on the molecular pathophysiology of DN. In this study, we analyzed small RNAs within human urinary extracellular vesicles (ECVs) from DN patients using small RNA next-generation sequencing. Method In this cross-sectional study, urine samples were collected from 88 participants who were divided into 3 groups: type 2 diabetes (T2D) with DN (T2D + DN, n = 20), T2D without DN (T2D - DN, n = 40), and healthy individuals (n = 28). The study focused on isolating urinary ECVs to extract and sequence small RNAs. Differentially expressed small RNAs were identified, and a functional enrichment analysis was conducted. Results The study revealed a distinct subset of 13 miRNAs and 10 Piwi-interacting RNAs that were significantly dysregulated in urinary ECVs of the DN group when compared to other groups. Notably, miR-151a-3p and miR-182-5p exhibited a unique expression pattern, being downregulated in the T2D - DN group, and upregulated in the T2D + DN group, thus demonstrating their effectiveness in distinguishing patients between the 2 groups. Eight driver genes were identified PTEN, SMAD2, SMAD4, VEGFA, CCND2, CDK6, LIN28B, and CHD1. Conclusion Our findings contribute valuable insights into the pathogenesis of DN, uncovering novel biomarkers and identifying potential therapeutic targets that may aid in managing and potentially decelerating the progression of the disease.
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Affiliation(s)
- Hamad Ali
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Health Sciences Center (HSC), Kuwait University, Jabriya, PO Box 24923, Safat 13110, Kuwait
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute (DDI), PO Box 1180, Dasman 15462, Kuwait
- Division of Nephrology, Mubarak Al-Kabeer Hospital, Ministry of Health, Jabriya, PO Box 24923, Safat 13110, Kuwait
| | - Md Zubbair Malik
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute (DDI), PO Box 1180, Dasman 15462, Kuwait
| | - Mohamed Abu-Farha
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), PO Box 1180, Dasman 15462, Kuwait
- Department of Translational Medicine, Dasman Diabetes Institute (DDI), PO Box 1180, Dasman 15462, Kuwait
| | - Jehad Abubaker
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), PO Box 1180, Dasman 15462, Kuwait
| | - Preethi Cherian
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), PO Box 1180, Dasman 15462, Kuwait
| | - Irina Al-Khairi
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), PO Box 1180, Dasman 15462, Kuwait
| | - Rasheeba Nizam
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute (DDI), PO Box 1180, Dasman 15462, Kuwait
| | - Sindhu Jacob
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute (DDI), PO Box 1180, Dasman 15462, Kuwait
| | - Yousif Bahbahani
- Division of Nephrology, Mubarak Al-Kabeer Hospital, Ministry of Health, Jabriya, PO Box 24923, Safat 13110, Kuwait
- Medical Division, Dasman Diabetes Institute (DDI), PO Box 1180, Dasman 15462, Kuwait
| | - Abdulnabi Al Attar
- Medical Division, Dasman Diabetes Institute (DDI), PO Box 1180, Dasman 15462, Kuwait
| | - Thangavel Alphonse Thanaraj
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute (DDI), PO Box 1180, Dasman 15462, Kuwait
| | - Fahd Al-Mulla
- Department of Translational Medicine, Dasman Diabetes Institute (DDI), PO Box 1180, Dasman 15462, Kuwait
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Jin J, Yang YR, Gong Q, Wang JN, Ni WJ, Wen JG, Meng XM. Role of epigenetically regulated inflammation in renal diseases. Semin Cell Dev Biol 2024; 154:295-304. [PMID: 36328897 DOI: 10.1016/j.semcdb.2022.10.005] [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: 07/15/2022] [Revised: 10/01/2022] [Accepted: 10/23/2022] [Indexed: 11/06/2022]
Abstract
In recent decades, renal disease research has witnessed remarkable advances. Experimental evidence in this field has highlighted the role of inflammation in kidney disease. Epigenetic dynamics and immunometabolic reprogramming underlie the alterations in cellular responses to intrinsic and extrinsic stimuli; these factors determine cell identity and cell fate decisions and represent current research hotspots. This review focuses on recent findings and emerging concepts in epigenetics and inflammatory regulation and their effect on renal diseases. This review aims to summarize the role and mechanisms of different epigenetic modifications in renal inflammation and injury and provide new avenues for future research on inflammation-related renal disease and drug development.
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Affiliation(s)
- Juan Jin
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei 230032, China; School of Basic Medicine, Anhui Medical University, Hefei 230032, China
| | - Ya-Ru Yang
- Department of Clinical Pharmacology, Second Hospital of Anhui Medical University, Hefei, China
| | - Qian Gong
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui, China
| | - Jia-Nan Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei 230032, China
| | - Wei-Jian Ni
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei 230032, China
| | - Jia-Gen Wen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei 230032, China.
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei 230032, China.
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Goleij P, Sanaye PM, Rezaee A, Tabari MAK, Arefnezhad R, Motedayyen H. RNA therapeutics for kidney injury. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2024; 204:69-95. [PMID: 38458744 DOI: 10.1016/bs.pmbts.2023.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
RNA therapy involves utilizing RNA-based molecules to control biological pathways, aiming to cure specific diseases. As our understanding of RNA functions and their roles has expanded, the application of RNA therapies has broadened to target various therapeutic points. This approach holds promise for treating a range of diseases, including kidney diseases. Therapeutic RNA can be employed to target specific genes or pathways implicated in the development of kidney conditions, such as inflammation, fibrosis, and oxidative stress. This review highlights the therapeutic potential of RNA-based therapies across different types of kidney diseases, encompassing infection, inflammation, nephrotoxicity, and ischemia/reperfusion injury. Furthermore, studies have pinpointed the specific kidney cells involved in RNA therapy. To address challenges hindering the potential impact of RNA-based drugs on their targets, nanotechnology is integrated, and RNA-loaded vehicles with ligands are explored for more efficient outcomes.
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Affiliation(s)
- Pouya Goleij
- Department of Genetics, Sana Institute of Higher Education, Sari, Iran; USERN Office, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | | | - Aryan Rezaee
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Khazeei Tabari
- Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran; USERN Office, Mazandaran University of Medical Sciences, Sari, Iran
| | - Reza Arefnezhad
- Coenzyme R Research Institute, Tehran, Iran; Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Hossein Motedayyen
- Autoimmune Diseases Research Center, Kashan University of Medical Sciences, Kashan, Iran.
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Li N, Han L, Wang X, Qiao O, Zhang L, Gong Y. Biotherapy of experimental acute kidney injury: emerging novel therapeutic strategies. Transl Res 2023; 261:69-85. [PMID: 37329950 DOI: 10.1016/j.trsl.2023.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 06/10/2023] [Accepted: 06/12/2023] [Indexed: 06/19/2023]
Abstract
Acute kidney injury (AKI) is a complex and heterogeneous disease with high incidence and mortality, posing a serious threat to human life and health. Usually, in clinical practice, AKI is caused by crush injury, nephrotoxin exposure, ischemia-reperfusion injury, or sepsis. Therefore, most AKI models for pharmacological experimentation are based on this. The current research promises to develop new biological therapies, including antibody therapy, non-antibody protein therapy, cell therapy, and RNA therapy, that could help mitigate the development of AKI. These approaches can promote renal repair and improve systemic hemodynamics after renal injury by reducing oxidative stress, inflammatory response, organelles damage, and cell death, or activating cytoprotective mechanisms. However, no candidate drugs for AKI prevention or treatment have been successfully translated from bench to bedside. This article summarizes the latest progress in AKI biotherapy, focusing on potential clinical targets and novel treatment strategies that merit further investigation in future pre-clinical and clinical studies.
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Affiliation(s)
- Ning Li
- Institute of Disaster and Emergency Medicine, Medical College, Tianjin University, Nankai District, Tianjin, China; Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin, China
| | - Lu Han
- Institute of Disaster and Emergency Medicine, Medical College, Tianjin University, Nankai District, Tianjin, China; Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin, China
| | - Xinyue Wang
- Institute of Disaster and Emergency Medicine, Medical College, Tianjin University, Nankai District, Tianjin, China; Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin, China
| | - Ou Qiao
- Institute of Disaster and Emergency Medicine, Medical College, Tianjin University, Nankai District, Tianjin, China; Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin, China
| | - Li Zhang
- Institute of Disaster and Emergency Medicine, Medical College, Tianjin University, Nankai District, Tianjin, China; Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin, China
| | - Yanhua Gong
- Institute of Disaster and Emergency Medicine, Medical College, Tianjin University, Nankai District, Tianjin, China; Tianjin Key Laboratory of Disaster Medicine Technology, Tianjin, China.
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Li C, Han S, Zhu J, Cheng F. MiR-132-3p activation aggravates renal ischemia-reperfusion injury by targeting Sirt1/PGC1alpha axis. Cell Signal 2023; 110:110801. [PMID: 37433399 DOI: 10.1016/j.cellsig.2023.110801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/13/2023] [Accepted: 07/07/2023] [Indexed: 07/13/2023]
Abstract
The pathogenesis of renal ischemic diseases remains unclear. In this study, we demonstrate the induction of microRNA-132-3p (miR-132-3p) in ischemic acute kidney injury (AKI) and cultured renal tubular cells under oxidative stress. miR-132-3p mimic increased apoptosis in renal tubular cells and enhanced ischemic AKI in mice, whereas miR-132-3p inhibition offered protective effects. We analyzed miR-132-3p target genes through bioinformatic analysis and Sirt1 was predicted as the target gene of miR-132-3p. Luciferase microRNA target reporter assay further verified Sirt1 as a direct target of miR-132-3p. In cultured tubular cells and mouse kidneys, IRI and H2O2 treatment repressed Sirt1 and PGC-1α/NRF2/HO-1 expression, whereas anti-miR-132-3p preserved Sirt1 and PGC-1α/NRF2/HO-1 expression. In renal tubular, Sirt1 inhibitor suppressed PGC1-1α/NRF2/HO-1 expression and aggravated tubular apoptosis. Together, the results suggest that miR-132-3p induction aggravates ischemic AKI and oxidative stress by repressing Sirt1 expression, and miR-132-3p inhibition offers renal protection and may be a potential therapeutic target.
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Affiliation(s)
- Chenglong Li
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Shangting Han
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China; Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Jiefu Zhu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China; Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China.
| | - Fan Cheng
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China.
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Tsuji K, Nakanoh H, Fukushima K, Kitamura S, Wada J. MicroRNAs as Biomarkers and Therapeutic Targets for Acute Kidney Injury. Diagnostics (Basel) 2023; 13:2893. [PMID: 37761260 PMCID: PMC10529274 DOI: 10.3390/diagnostics13182893] [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: 08/16/2023] [Revised: 09/04/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Acute kidney injury (AKI) is a clinical syndrome where a rapid decrease in kidney function and/or urine output is observed, which may result in the imbalance of water, electrolytes and acid base. It is associated with poor prognosis and prolonged hospitalization. Therefore, an early diagnosis and treatment to avoid the severe AKI stage are important. While several biomarkers, such as urinary L-FABP and NGAL, can be clinically useful, there is still no gold standard for the early detection of AKI and there are limited therapeutic options against AKI. miRNAs are non-coding and single-stranded RNAs that silence their target genes in the post-transcriptional process and are involved in a wide range of biological processes. Recent accumulated evidence has revealed that miRNAs may be potential biomarkers and therapeutic targets for AKI. In this review article, we summarize the current knowledge about miRNAs as promising biomarkers and potential therapeutic targets for AKI, as well as the challenges in their clinical use.
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Affiliation(s)
- Kenji Tsuji
- Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Hiroyuki Nakanoh
- Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Kazuhiko Fukushima
- Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
- Program in Membrane Biology, Center for Systems Biology, Department of Medicine, Division of Nephrology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Shinji Kitamura
- Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
- Department of Nursing Science, Faculty of Health and Welfare Science, Okayama Prefectural University, Okayama 719-1197, Japan
| | - Jun Wada
- Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
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8
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Li X, Cao Y, Xu X, Wang C, Ni Q, Lv X, Yang C, Zhang Z, Qi X, Song G. Sleep Deprivation Promotes Endothelial Inflammation and Atherogenesis by Reducing Exosomal miR-182-5p. Arterioscler Thromb Vasc Biol 2023; 43:995-1014. [PMID: 37021573 DOI: 10.1161/atvbaha.123.319026] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 03/22/2023] [Indexed: 04/07/2023]
Abstract
BACKGROUND Insufficient or disrupted sleep increases the risk of cardiovascular disease, including atherosclerosis. However, we know little about the molecular mechanisms by which sleep modulates atherogenesis. This study aimed to explore the potential role of circulating exosomes in endothelial inflammation and atherogenesis under sleep deprivation status and the molecular mechanisms involved. METHODS Circulating exosomes were isolated from the plasma of volunteers with or without sleep deprivation and mice subjected to 12-week sleep deprivation or control littermates. miRNA array was performed to determine changes in miRNA expression in circulating exosomes. RESULTS Although the total circulating exosome levels did not change significantly, the isolated plasma exosomes from sleep-deprived mice or human were a potent inducer of endothelial inflammation and atherogenesis. Through profiling and functional analysis of the global microRNA in the exosomes, we found miR-182-5p is a key exosomal cargo that mediates the proinflammatory effects of exosomes by upregulation of MYD88 (myeloid differentiation factor 88) and activation of NF-ĸB (nuclear factor kappa-B)/NLRP3 pathway in endothelial cells. Moreover, sleep deprivation or the reduction of melatonin directly decreased the synthesis of miR-182-5p and led to the accumulation of reactive oxygen species in small intestinal epithelium. CONCLUSIONS The findings illustrate an important role for circulating exosomes in distant communications, suggesting a new mechanism underlying the link between sleep disorder and cardiovascular disease.
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Affiliation(s)
- Xiao Li
- School of Basic Medical Sciences, and The Second Affiliated Hospital of Shandong First Medical University & Shandong Academy of Medical Science, Jinan, China (X.L., Y.C., X.X., C.W., X.L., C.Y., Z.Z., G.S.)
| | - Ying Cao
- School of Basic Medical Sciences, and The Second Affiliated Hospital of Shandong First Medical University & Shandong Academy of Medical Science, Jinan, China (X.L., Y.C., X.X., C.W., X.L., C.Y., Z.Z., G.S.)
| | - Xinxin Xu
- School of Basic Medical Sciences, and The Second Affiliated Hospital of Shandong First Medical University & Shandong Academy of Medical Science, Jinan, China (X.L., Y.C., X.X., C.W., X.L., C.Y., Z.Z., G.S.)
| | - Chongyue Wang
- School of Basic Medical Sciences, and The Second Affiliated Hospital of Shandong First Medical University & Shandong Academy of Medical Science, Jinan, China (X.L., Y.C., X.X., C.W., X.L., C.Y., Z.Z., G.S.)
| | - Qingbin Ni
- Hydrogen medicine center, Tai 'an City Central Hospital, China (Q.N.)
| | - Xiang Lv
- School of Basic Medical Sciences, and The Second Affiliated Hospital of Shandong First Medical University & Shandong Academy of Medical Science, Jinan, China (X.L., Y.C., X.X., C.W., X.L., C.Y., Z.Z., G.S.)
| | - Chao Yang
- School of Basic Medical Sciences, and The Second Affiliated Hospital of Shandong First Medical University & Shandong Academy of Medical Science, Jinan, China (X.L., Y.C., X.X., C.W., X.L., C.Y., Z.Z., G.S.)
| | - Zhaoqiang Zhang
- School of Basic Medical Sciences, and The Second Affiliated Hospital of Shandong First Medical University & Shandong Academy of Medical Science, Jinan, China (X.L., Y.C., X.X., C.W., X.L., C.Y., Z.Z., G.S.)
| | - Xufeng Qi
- Key Laboratory of Regenerative Medicine of Ministry of Education, Department of Developmental & Regenerative Biology, Jinan University, Guangzhou, China (X.Q.)
| | - Guohua Song
- School of Basic Medical Sciences, and The Second Affiliated Hospital of Shandong First Medical University & Shandong Academy of Medical Science, Jinan, China (X.L., Y.C., X.X., C.W., X.L., C.Y., Z.Z., G.S.)
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Shi L, Song Z, Li Y, Huang J, Zhao F, Luo Y, Wang J, Deng F, Shadekejiang H, Zhang M, Dong S, Wu X, Zhu J. MiR-20a-5p alleviates kidney ischemia/reperfusion injury by targeting ACSL4-dependent ferroptosis. Am J Transplant 2023; 23:11-25. [PMID: 36695612 DOI: 10.1016/j.ajt.2022.09.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/22/2022] [Accepted: 09/28/2022] [Indexed: 01/13/2023]
Abstract
Ischemia/reperfusion injury (IRI) is prone to occur after kidney transplantation, leading to delayed graft function (DGF). MicroRNAs play a crucial role in the pathogenesis of ischemia/reperfusion-induced acute kidney injury, and miR-20a-5p was found to be the most significantly upregulated gene in a DGF patient cohort. However, the roles of microRNAs in transplanted kidneys remain largely unknown. In this study, we found that miR-20a-5p was upregulated in the kidneys of acute kidney injury mice and in patients with DGF. We identified early growth response-1 as a critical upstream target and verified the binding of early growth response-1 to a predicted sequence in the promoter region of the miR-20a-5p gene. Functionally, the miR-20a-5p mimic attenuated IRI and postischemic renal fibrosis, whereas the miR-20a-5p inhibitor delivery aggravated IRI and fibrosis. Importantly, delivery of the miR-20a-5p mimic or inhibitor in the donor kidneys attenuated or aggravated renal loss and structural damage in cold storage transplantation injury. Furthermore, our study identified miR-20a-5p as a negative regulator of acyl-CoA synthetase long-chain family member 4 (ACSL4) by targeting the 3' untranslated region of ACSL4 mRNA, thereby inhibiting ACSL4-dependent ferroptosis. Our results suggest a potential therapeutic application of miR-20a-5p in kidney transplantation through the inhibition of ACSL4-dependent ferroptosis.
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Affiliation(s)
- Lang Shi
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Zhixia Song
- Department of Nephrology, The First Clinical Medical College of Three Gorges University, Center People's Hospital of Yichang, Yichang, Hubei, China
| | - Yuzhen Li
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Jing Huang
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Fan Zhao
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Yanwen Luo
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Juan Wang
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Fangjing Deng
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Halinuer Shadekejiang
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Mingjiao Zhang
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Shengyu Dong
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Xiongfei Wu
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China.
| | - Jiefu Zhu
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China.
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10
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Pan Y, Wang X, Liu X, Shen L, Chen Q, Shu Q. Targeting Ferroptosis as a Promising Therapeutic Strategy for Ischemia-Reperfusion Injury. Antioxidants (Basel) 2022; 11:2196. [PMID: 36358568 PMCID: PMC9686892 DOI: 10.3390/antiox11112196] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/29/2022] [Accepted: 11/03/2022] [Indexed: 07/29/2023] Open
Abstract
Ischemia-reperfusion (I/R) injury is a major challenge in perioperative medicine that contributes to pathological damage in various conditions, including ischemic stroke, myocardial infarction, acute lung injury, liver transplantation, acute kidney injury and hemorrhagic shock. I/R damage is often irreversible, and current treatments for I/R injury are limited. Ferroptosis, a type of regulated cell death characterized by the iron-dependent accumulation of lipid hydroperoxides, has been implicated in multiple diseases, including I/R injury. Emerging evidence suggests that ferroptosis can serve as a therapeutic target to alleviate I/R injury, and pharmacological strategies targeting ferroptosis have been developed in I/R models. Here, we systematically summarize recent advances in research on ferroptosis in I/R injury and provide a comprehensive analysis of ferroptosis-regulated genes investigated in the context of I/R, as well as the therapeutic applications of ferroptosis regulators, to provide insights into developing therapeutic strategies for this devastating disease.
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Affiliation(s)
- Yihang Pan
- Department of Clinical Research Center, The Children’s Hospital, School of Medicine, Zhejiang University, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Xueke Wang
- Department of Clinical Research Center, The Children’s Hospital, School of Medicine, Zhejiang University, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Xiwang Liu
- Department of Thoracic & Cardiovascular Surgery, The Children’s Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Lihua Shen
- Department of Clinical Research Center, The Children’s Hospital, School of Medicine, Zhejiang University, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Qixing Chen
- Department of Clinical Research Center, The Children’s Hospital, School of Medicine, Zhejiang University, National Clinical Research Center for Child Health, Hangzhou 310052, China
- Key Laboratory of Diagnosis and Treatment of Neonatal Diseases of Zhejiang Province, Hangzhou 310052, China
| | - Qiang Shu
- Department of Clinical Research Center, The Children’s Hospital, School of Medicine, Zhejiang University, National Clinical Research Center for Child Health, Hangzhou 310052, China
- Department of Thoracic & Cardiovascular Surgery, The Children’s Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
- Key Laboratory of Diagnosis and Treatment of Neonatal Diseases of Zhejiang Province, Hangzhou 310052, China
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11
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MiR-6918-5p prevents renal tubular cell apoptosis by targeting MBD2 in ischemia/reperfusion-induced AKI. Life Sci 2022; 308:120921. [PMID: 36057400 DOI: 10.1016/j.lfs.2022.120921] [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: 05/15/2022] [Revised: 07/28/2022] [Accepted: 08/25/2022] [Indexed: 11/21/2022]
Abstract
AIMS Although previous studies reported that miRNAs are involved in the progression of acute kidney injury (AKI), their exact function and mechanism in ischemic AKI remains largely unknown. This study aims to define the role of miR-6918-5p in ischemia-reperfusion AKI. Materials and methods The renal arteries of C57BL/6J mice were clamped to establish a model of ischemia-reperfusion renal injury. BUMPT cells were added with Antimycin A and calcium ionophore to establish a model of ATP depletion in vitro. Cell apoptosis was detected by CCK8, flow cytometry and western blot, while HE staining and TUNEL staining were used to assess the degree of kidney damage. KEY FINDINGS We suppressed mmu_miR-6918-5p by ischemic injury in vitro and in vivo. We found that ischemia-reperfusion (I/R)-induced renal tubular cell apoptosis and the expression of cleaved caspase3 were enhanced by the inhibitor of mmu_miR-6918-5p; this effect was attenuated by an mmu_miR-6918-5p mimic. Mechanistically, mmu_miR-6918-5p binds to the 3' UTR region of MBD2 and represses its expression. The mmu_miR-6918-5p mimic alleviated the ischemic AKI by targeting MBD2. Conversely, the inhibitor of mmu_miR-6918-5p enhanced the ischemic AKI; this was diminished by MBD2-KO. SIGNIFICANCE Mmu_miR-6918-5p protected against the development of ischemic AKI by targeting MBD2.
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12
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Mahtal N, Lenoir O, Tinel C, Anglicheau D, Tharaux PL. MicroRNAs in kidney injury and disease. Nat Rev Nephrol 2022; 18:643-662. [PMID: 35974169 DOI: 10.1038/s41581-022-00608-6] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/11/2022] [Indexed: 11/09/2022]
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that regulate gene expression by degrading or repressing the translation of their target messenger RNAs. As miRNAs are critical regulators of cellular homeostasis, their dysregulation is a crucial component of cell and organ injury. A substantial body of evidence indicates that miRNAs are involved in the pathophysiology of acute kidney injury (AKI), chronic kidney disease and allograft damage. Different subsets of miRNAs are dysregulated during AKI, chronic kidney disease and allograft rejection, which could reflect differences in the physiopathology of these conditions. miRNAs that have been investigated in AKI include miR-21, which has an anti-apoptotic role, and miR-214 and miR-668, which regulate mitochondrial dynamics. Various miRNAs are downregulated in diabetic kidney disease, including the miR-30 family and miR-146a, which protect against inflammation and fibrosis. Other miRNAs such as miR-193 and miR-92a induce podocyte dedifferentiation in glomerulonephritis. In transplantation, miRNAs have been implicated in allograft rejection and injury. Further work is needed to identify and validate miRNAs as biomarkers of graft function and of kidney disease development and progression. Use of combinations of miRNAs together with other molecular markers could potentially improve diagnostic or predictive power and facilitate clinical translation. In addition, targeting specific miRNAs at different stages of disease could be a promising therapeutic strategy.
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Affiliation(s)
- Nassim Mahtal
- Paris Cardiovascular Research Center - PARCC, Inserm, Université Paris Cité, Paris, France
| | - Olivia Lenoir
- Paris Cardiovascular Research Center - PARCC, Inserm, Université Paris Cité, Paris, France.
| | - Claire Tinel
- Service de Néphrologie et Transplantation Adulte, Hôpital Necker-Enfants Malades, Université Paris Cité, Assistance Publique-Hôpitaux de Paris, Paris, France.,Institut Necker-Enfants Malades, Inserm, Université Paris Cité, Paris, France
| | - Dany Anglicheau
- Service de Néphrologie et Transplantation Adulte, Hôpital Necker-Enfants Malades, Université Paris Cité, Assistance Publique-Hôpitaux de Paris, Paris, France.,Institut Necker-Enfants Malades, Inserm, Université Paris Cité, Paris, France
| | - Pierre-Louis Tharaux
- Paris Cardiovascular Research Center - PARCC, Inserm, Université Paris Cité, Paris, France.
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13
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Clément AA, Lamarche D, Masse MH, Légaré C, Tai LH, Fleury Deland L, Battista MC, Bouchard L, D’Aragon F. Time-course full profiling of circulating miRNAs in neurologically deceased organ donors: a proof of concept study to understand the onset of the cytokine storm. Epigenetics 2022; 17:1546-1561. [DOI: 10.1080/15592294.2022.2076048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Andrée-Anne Clément
- Department of Biochemistry and Functional Genomics, Faculty of Medicine and Health Sciences (FMHS), Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Daphnée Lamarche
- Department of Anesthesiology, FMHS,Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Marie-Hélène Masse
- Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC, Canada
| | - Cécilia Légaré
- Department of Biochemistry and Functional Genomics, Faculty of Medicine and Health Sciences (FMHS), Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Lee-Hwa Tai
- Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC, Canada
- Department of Immunology and Cellular Biology, FMHS,Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Laurence Fleury Deland
- Department of Immunology and Cellular Biology, FMHS,Université de Sherbrooke, Sherbrooke, QC, Canada
- Department of Medicine, FMHS,Université de Sherbrooke, Sherbrooke, QC, Canada
| | | | - Luigi Bouchard
- Department of Biochemistry and Functional Genomics, Faculty of Medicine and Health Sciences (FMHS), Université de Sherbrooke, Sherbrooke, QC, Canada
- Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC, Canada
- Department of Medical Biology, CIUSSS Saguenay-Lac-Saint-Jean-Hôpital Universitaire de Chicoutimi, Saguenay, QC, Canada
| | - Frédérick D’Aragon
- Department of Anesthesiology, FMHS,Université de Sherbrooke, Sherbrooke, QC, Canada
- Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC, Canada
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14
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Abstract
MicroRNAs (miRNAs) belong to a class of endogenous small noncoding RNAs that regulate gene expression at the posttranscriptional level, through both translational repression and mRNA destabilization. They are key regulators of kidney morphogenesis, modulating diverse biological processes in different renal cell lineages. Dysregulation of miRNA expression disrupts early kidney development and has been implicated in the pathogenesis of developmental kidney diseases. In this Review, we summarize current knowledge of miRNA biogenesis and function and discuss in detail the role of miRNAs in kidney morphogenesis and developmental kidney diseases, including congenital anomalies of the kidney and urinary tract and Wilms tumor. We conclude by discussing the utility of miRNAs as potentially novel biomarkers and therapeutic agents.
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Affiliation(s)
- Débora Malta Cerqueira
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- John G. Rangos Sr. Research Center, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Maliha Tayeb
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- John G. Rangos Sr. Research Center, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Jacqueline Ho
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- John G. Rangos Sr. Research Center, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
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15
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Frydlova J, Zednikova I, Satrapova V, Pazourkova E, Santorova S, Hruskova Z, Tesar V, Vokurka M, Prikryl P, Korabecna M. Analysis of microRNAs in Small Urinary Extracellular Vesicles and Their Potential Roles in Pathogenesis of Renal ANCA-Associated Vasculitis. Int J Mol Sci 2022; 23:ijms23084344. [PMID: 35457163 PMCID: PMC9028884 DOI: 10.3390/ijms23084344] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/06/2022] [Accepted: 04/12/2022] [Indexed: 11/16/2022] Open
Abstract
Antineutrophil cytoplasmic antibodies (ANCA)-associated vasculitis (AAV) represents an autoimmunity disease characterized by high mortality. For successful treatment, the detailed knowledge of its complex pathogenesis and the set of biomarkers for differential diagnostics are desired. Analysis of molecular content of small urinary extracellular vesicles (uEV) offers the possibility to find markers in the form of microRNAs (miRNAs) and study the pathways involved in pathogenesis. We used next-generation sequencing in the first preliminary study to detect the miRNAs with altered expression in uEVs of patients with AAV in comparison with age-matched controls. We confirmed the results using single-target quantitative polymerase chain reaction tests on different sets of samples and found five miRNAs (miR-30a-5p, miR-31-3p, miR-99a-5p, miR-106b-5p, miR-182-5p) with highly elevated levels in uEVs of patients. We performed the comparison of their targets with the differentially expressed proteins in uEVs of patients included in the first phase. We realized that upregulated miRNAs and proteins in uEVs in AAV patients target different biological pathways. The only overlap was detected in pathways regulating the actin cytoskeleton assembly and thus potentially affecting the glomerular functions. The associations of upregulated miRNAs with pathways that were neglected as components of complex AAV pathogenesis, e.g., the epidermal growth factor receptor signaling pathway, were found.
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Affiliation(s)
- Jana Frydlova
- Institute of Pathological Physiology, First Faculty of Medicine, Charles University, U Nemocnice 5, 128 53 Prague, Czech Republic; (J.F.); (M.V.)
| | - Iveta Zednikova
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital, Albertov 4, 128 00 Prague, Czech Republic; (I.Z.); (E.P.); (S.S.)
| | - Veronika Satrapova
- Department of Nephrology, First Faculty of Medicine, Charles University and General University Hospital, U Nemocnice 2, 128 08 Prague, Czech Republic; (V.S.); (Z.H.); (V.T.)
| | - Eva Pazourkova
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital, Albertov 4, 128 00 Prague, Czech Republic; (I.Z.); (E.P.); (S.S.)
- Department of Nephrology, First Faculty of Medicine, Charles University and General University Hospital, U Nemocnice 2, 128 08 Prague, Czech Republic; (V.S.); (Z.H.); (V.T.)
| | - Sarka Santorova
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital, Albertov 4, 128 00 Prague, Czech Republic; (I.Z.); (E.P.); (S.S.)
| | - Zdenka Hruskova
- Department of Nephrology, First Faculty of Medicine, Charles University and General University Hospital, U Nemocnice 2, 128 08 Prague, Czech Republic; (V.S.); (Z.H.); (V.T.)
| | - Vladimir Tesar
- Department of Nephrology, First Faculty of Medicine, Charles University and General University Hospital, U Nemocnice 2, 128 08 Prague, Czech Republic; (V.S.); (Z.H.); (V.T.)
| | - Martin Vokurka
- Institute of Pathological Physiology, First Faculty of Medicine, Charles University, U Nemocnice 5, 128 53 Prague, Czech Republic; (J.F.); (M.V.)
| | - Petr Prikryl
- Institute of Pathological Physiology, First Faculty of Medicine, Charles University, U Nemocnice 5, 128 53 Prague, Czech Republic; (J.F.); (M.V.)
- Correspondence: (P.P.); (M.K.)
| | - Marie Korabecna
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital, Albertov 4, 128 00 Prague, Czech Republic; (I.Z.); (E.P.); (S.S.)
- Correspondence: (P.P.); (M.K.)
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16
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Motshwari DD, George C, Matshazi DM, Weale CJ, Davids SFG, Zemlin AE, Erasmus RT, Kengne AP, Matsha TE. Expression of whole blood miR-126-3p, -30a-5p, -1299, -182-5p and -30e-3p in chronic kidney disease in a South African community-based sample. Sci Rep 2022; 12:4107. [PMID: 35260775 PMCID: PMC8904505 DOI: 10.1038/s41598-022-08175-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 02/04/2022] [Indexed: 12/30/2022] Open
Abstract
The burden of chronic kidney disease (CKD) in Africa remains poorly characterized, due partly to the lack of appropriate diagnostic strategies. Although in recent years the diagnostic and prognostic utility of microRNAs (miRNAs) have gained prominence in the context of CKD, its value has not been evaluated in African populations. We investigated the expression of whole blood miRNAs (miR-126-3p, -30a-5p, -1299, -182-5p and -30e-3p) in a total sample of 1449 comprising of 13.3% individuals with CKD (stage 1-5) and 26.4% male participants, as well as the association of these miRNAs with prevalent CKD, in a community-based sample of South African adults. We used Reverse Transcription Quantitative Real-Time PCR (RT-qPCR) to analyze miRNA expression. There was an increased expression in whole blood miR-126-3p, -30a-5p, -1299 and -182-5p in individuals with CKD, compared to those without (all p ≤ 0.036), whereas miR-30e-3p showed no significant difference between the groups (p = 0.482). Only miR-126-3p, -182-5p and -30e-3p were independently associated with increased risk of CKD (all p ≤ 0.022). This study showed for the first time that there is a dysregulation of whole blood miR-126-3p, -30a-5p, -1299 and -182-5p in South Africans of mixed-ancestry with CKD. More research is needed to ascertain their role in CKD risk screening in African populations.
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Affiliation(s)
- Dipuo D Motshwari
- SAMRC/CPUT/Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Cindy George
- Non-Communicable Disease Research Unit, South African Medical Research Council, Parow, Francie van Zijl Drive, Parow Valley, Cape Town, South Africa.
| | - Don M Matshazi
- SAMRC/CPUT/Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Cecil J Weale
- SAMRC/CPUT/Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Saarah F G Davids
- SAMRC/CPUT/Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Annalise E Zemlin
- Division of Chemical Pathology, Faculty of Medicine and Health Sciences, National Health Laboratory Service (NHLS) and University of Stellenbosch, Cape Town, South Africa
| | - Rajiv T Erasmus
- SAMRC/CPUT/Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
- Division of Chemical Pathology, Faculty of Medicine and Health Sciences, National Health Laboratory Service (NHLS) and University of Stellenbosch, Cape Town, South Africa
| | - Andre P Kengne
- Non-Communicable Disease Research Unit, South African Medical Research Council, Parow, Francie van Zijl Drive, Parow Valley, Cape Town, South Africa
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Tandi E Matsha
- SAMRC/CPUT/Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
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17
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Valdivia E, Rother T, Yuzefovych Y, Hack F, Wenzel N, Blasczyk R, Krezdorn N, Figueiredo C. Genetic modification of limbs using ex vivo machine perfusion. Hum Gene Ther 2021; 33:460-471. [PMID: 34779223 DOI: 10.1089/hum.2021.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Genetic engineering is a promising tool to repair genetic disorders, improve graft function or to reduce immune responses towards the allografts. Ex vivo organ perfusion systems have the potential to mitigate ischemic-reperfusion injury, prolong preservation time or even rescue organ function. We aim to combine both technologies to develop a modular platform allowing the genetic modification of vascularized composite (VC) allografts. Rat hind limbs were perfused ex vivo under subnormothermic conditions with lentiviral vectors. Specific perfusion conditions such as controlled pressure, temperature and flow rates were optimized to support the genetic modification of the limbs. Genetic modification was detected in vascular, muscular and dermal limb tissues. Remarkably, skin follicular and interfollicular keratinocytes as well as endothelial cells (ECs) showed stable transgene expression. Furthermore, levels of injury markers such as lactate, myoglobin and lactate dehydrogenase (LDH) as well as histological analyses showed that ex vivo limb perfusion with lentiviral vectors did not cause tissue damage and limb cytokine secretion signatures were not significantly affected. The use of ex vivo VC perfusion in combination with lentiviral vectors allows an efficient and stable genetic modification of limbs representing a robust platform to genetically engineer limbs towards increasing graft survival after transplantation.
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Affiliation(s)
- Emilio Valdivia
- Hannover Medical School, 9177, Institute of Transfusion Medicine and Transplant Engineering, Hannover, Niedersachsen, Germany;
| | - Tamina Rother
- Hannover Medical School, 9177, Institute of Transfusion Medicine and Transplant Engineering, Hannover, Niedersachsen, Germany;
| | - Yuliia Yuzefovych
- Hannover Medical School, 9177, Institute of Transfusion Medicine and Transplant Engineering, Hannover, Niedersachsen, Germany;
| | - Franziska Hack
- Hannover Medical School, 9177, Institute of Transfusion Medicine and Transplant Engineering, Hannover, Niedersachsen, Germany;
| | - Nadine Wenzel
- Hannover Medical School, 9177, Institute of Transfusion Medicine and Transplant Engineering, Hannover, Niedersachsen, Germany;
| | - Rainer Blasczyk
- Hannover Medical School, 9177, Institute of Transfusion Medicine and Transplant Engineering, Hannover, Niedersachsen, Germany;
| | - Nicco Krezdorn
- Hannover Medical School, 9177, Clinic for Plastic, Aesthetic, Hand and Reconstructive Surgery, Hannover, Niedersachsen, Germany;
| | - Constanca Figueiredo
- Hannover Medical School, 9177, Institute of Transfusion Medicine and Transplant Engineering, Hannover, Niedersachsen, Germany;
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18
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Chen S, Zhou M, Ying X, Zhou C. Ellagic acid protects rats from chronic renal failure via MiR-182/FOXO3a axis. Mol Immunol 2021; 138:150-160. [PMID: 34428620 DOI: 10.1016/j.molimm.2021.08.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 08/10/2021] [Accepted: 08/11/2021] [Indexed: 01/20/2023]
Abstract
Studies showed that ellagic acid (EA) can significantly improve kidney function, but the renal-protective effects of EA and the potential mechanism require adequate elucidation. This study investigated the mechanisms of EA in chronic renal failure (CRF) injury. A rat model of CRF was established by 5/6 nephrectomy. The body weight, urine volume and urine protein content of the rat model of CRF with EA treatment (0/20/40 mg/kg/day) were recorded. Hematoxylin&eosin (H&E) staining, Masson staining and TUNEL were used for histopathological observation. Serum levels of creatinine value, blood urea nitrogen, superoxide dismutase, glutathione, malondialdehyde, tumor necrosis factor-α, interleukin-6 and intercellular cell adhesion molecule-1 were determined using enzyme-linked immunosorbent assay (ELISA) kits. The expressions of genes involved in CRF damage were detected by quantitative real-time PCR (qRT-PCR) and western blot. The relationships among EA, miR-182 and FOXO3a were verified by TargetScan 7.2, dual-luciferase assay and rescue experiments. In this study, EA treatment significantly increased the body weight, but reduced urination and urine protein content, renal tissue damage, collagen deposition, inflammation and the contents of serum creatinine (Scr), blood urea nitrogen (BUN), and malondialdehyde (MDA), and improved the antioxidant capacity of CRF rats. Moreover, EA treatment inhibited miR-182, TGF-β1, fibronectin and Bax levels, and promoted those of FOXO3a and Bcl-2 in CRF rats. Additionally, miR-182 specifically targeted FOXO3a, and effectively reduced the renal-protective effect of EA. Further research found that overexpressed FOXO3a partially reversed the inhibitory effect of miR-182 on CRF rats. Our results suggest that EA might reduce CRF injury in rats via miR-182/FOXO3a.
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Affiliation(s)
- Siqi Chen
- Department of Nephrology, The Affiliated People's Hospital, Ningbo University, Ningbo, Zhejiang, 315040, China
| | - Meiyang Zhou
- Department of Nephrology, The Affiliated People's Hospital, Ningbo University, Ningbo, Zhejiang, 315040, China
| | - Xuxia Ying
- Department of Intensive Care Unit, The Affiliated People's Hospital, Ningbo University, Ningbo, Zhejiang, 315040, China
| | - Canxin Zhou
- Department of Nephrology, The Affiliated People's Hospital, Ningbo University, Ningbo, Zhejiang, 315040, China.
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19
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Fang Y, Zou L, He W. miR‑30a‑5p mitigates autophagy by regulating the Beclin‑1/ATG16 pathway in renal ischemia/reperfusion injury. Int J Mol Med 2021; 48:144. [PMID: 34080645 PMCID: PMC8175063 DOI: 10.3892/ijmm.2021.4977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 04/26/2021] [Indexed: 01/11/2023] Open
Abstract
Renal ischemia/reperfusion (I/R) injury often occurs during multiple organ failure and sepsis, and autophagy may serve a role in I/R injury. The aim of the present study was to explore the effect of microRNA (miR)-30a-5p on autophagy in renal I/R injury. miR-30a-5p and autophagy-related protein expression levels in renal I/R injury mouse models and in hypoxia/re-oxygenation HK-2 cell models were determined using reverse transcription-quantitative PCR or western blotting; apoptosis was analyzed using flow cytometry. The effects of miR-30a-5p, Beclin-1 and autophagy-related gene 16 (ATG16) on the proliferation and autophagy of HK-2 cells were analyzed through gain- and loss-of-function studies. miR-30a-5p expression was significantly decreased after renal I/R injury in the in vivo and in vitro experiments. Renal I/R injury led to upregulated expression of autophagy-related proteins microtubule-associated protein light chain 3 (LC3)-II and Beclin-1, and downregulated expression of p62. miR-30a-5p overexpression decreased the number of LC3 punctae, decreased HK-2 cell apoptosis, increased p62 expression and decreased LC3-II and Beclin-1 expression. Inhibition of miR-30a-5p exhibited the opposite effects. A luciferase reporter assay demonstrated that miR-30a-5p targeted Beclin-1. Beclin-1 overexpression led to a significant increase in LC3-II expression and a decrease in p62 expression, as well as a significant increase in apoptosis. Beclin-1 overexpression also increased the protein expression level of ATG16. Downregulation of Beclin-1 decreased the expression of LC3-II, elevated the p62 level and decreased apoptosis. ATG16 knockdown showed similar effects as those of Beclin-1 downregulation. In conclusion, miR-30a-5p was increased in renal I/R injury and might mitigate autophagy by regulating the Beclin-1/ATG16 pathway.
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Affiliation(s)
- Ye Fang
- Priority Medical Department, General Hospital of Central Theater Command, Wuhan, Hubei 430070, P.R. China
| | - Lin Zou
- Priority Medical Department, General Hospital of Central Theater Command, Wuhan, Hubei 430070, P.R. China
| | - Wei He
- Priority Medical Department, General Hospital of Central Theater Command, Wuhan, Hubei 430070, P.R. China
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20
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Tchouta LN, Alghanem F, Rojas-Pena A, Bartlett RH. Prolonged (≥24 Hours) Normothermic (≥32 °C) Ex Vivo Organ Perfusion: Lessons From the Literature. Transplantation 2021; 105:986-998. [PMID: 33031222 DOI: 10.1097/tp.0000000000003475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
For 2 centuries, researchers have studied ex vivo perfusion intending to preserve the physiologic function of isolated organs. If it were indeed possible to maintain ex vivo organ viability for days, transplantation could become an elective operation with clinicians methodically surveilling and reconditioning allografts before surgery. To this day, experimental reports of successfully prolonged (≥24 hours) organ perfusion are rare and have not translated into clinical practice. To identify the crucial factors necessary for successful perfusion, this review summarizes the history of prolonged normothermic ex vivo organ perfusion. By examining successful techniques and protocols used, this review outlines the essential elements of successful perfusion, limitations of current perfusion systems, and areas where further research in preservation science is required.
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Affiliation(s)
- Lise N Tchouta
- Department of Surgery, Columbia University Medical Center, New York, NY
- Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Fares Alghanem
- Department of Surgery, University of Michigan, Ann Arbor, MI
- Central Michigan University College of Medicine, Mount Pleasant, MI
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21
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Oligonucleotide-Based Therapies for Renal Diseases. Biomedicines 2021; 9:biomedicines9030303. [PMID: 33809425 PMCID: PMC8001091 DOI: 10.3390/biomedicines9030303] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/09/2021] [Accepted: 03/12/2021] [Indexed: 02/07/2023] Open
Abstract
The global burden of chronic kidney disease (CKD) is increasing every year and represents a great cost for public healthcare systems, as the majority of these diseases are progressive. Therefore, there is an urgent need to develop new therapies. Oligonucleotide-based drugs are emerging as novel and promising alternatives to traditional drugs. Their expansion corresponds with new knowledge regarding the molecular basis underlying CKD, and they are already showing encouraging preclinical results, with two candidates being evaluated in clinical trials. However, despite recent technological advances, efficient kidney delivery remains challenging, and the presence of off-targets and side-effects precludes development and translation to the clinic. In this review, we provide an overview of the various oligotherapeutic strategies used preclinically, emphasizing the most recent findings in the field, together with the different strategies employed to achieve proper kidney delivery. The use of different nanotechnological platforms, including nanocarriers, nanoparticles, viral vectors or aptamers, and their potential for the development of more specific and effective treatments is also outlined.
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22
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Connor KL, Teenan O, Cairns C, Banwell V, Thomas RA, Rodor J, Finnie S, Pius R, Tannahill GM, Sahni V, Savage CO, Hughes J, Harrison EM, Henderson RB, Marson LP, Conway BR, Wigmore SJ, Denby L. Identifying cell-enriched miRNAs in kidney injury and repair. JCI Insight 2020; 5:140399. [PMID: 33328386 PMCID: PMC7819746 DOI: 10.1172/jci.insight.140399] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 11/06/2020] [Indexed: 12/14/2022] Open
Abstract
Small noncoding RNAs, miRNAs (miRNAs), are emerging as important modulators in the pathogenesis of kidney disease, with potential as biomarkers of kidney disease onset, progression, or therapeutic efficacy. Bulk tissue small RNA-sequencing (sRNA-Seq) and microarrays are widely used to identify dysregulated miRNA expression but are limited by the lack of precision regarding the cellular origin of the miRNA. In this study, we performed cell-specific sRNA-Seq on tubular cells, endothelial cells, PDGFR-β+ cells, and macrophages isolated from injured and repairing kidneys in the murine reversible unilateral ureteric obstruction model. We devised an unbiased bioinformatics pipeline to define the miRNA enrichment within these cell populations, constructing a miRNA catalog of injury and repair. Our analysis revealed that a significant proportion of cell-specific miRNAs in healthy animals were no longer specific following injury. We then applied this knowledge of the relative cell specificity of miRNAs to deconvolute bulk miRNA expression profiles in the renal cortex in murine models and human kidney disease. Finally, we used our data-driven approach to rationally select macrophage-enriched miR-16-5p and miR-18a-5p and demonstrate that they are promising urinary biomarkers of acute kidney injury in renal transplant recipients.
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Affiliation(s)
- Katie L Connor
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, United Kingdom.,Edinburgh Transplant Unit, Edinburgh Royal Infirmary, Edinburgh, United Kingdom.,Centre for Inflammation Research and
| | - Oliver Teenan
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, United Kingdom
| | - Carolynn Cairns
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, United Kingdom
| | - Victoria Banwell
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, United Kingdom.,Edinburgh Transplant Unit, Edinburgh Royal Infirmary, Edinburgh, United Kingdom.,Centre for Inflammation Research and
| | - Rachel Ab Thomas
- Edinburgh Transplant Unit, Edinburgh Royal Infirmary, Edinburgh, United Kingdom.,Centre for Inflammation Research and
| | - Julie Rodor
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, United Kingdom
| | - Sarah Finnie
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, United Kingdom
| | - Riinu Pius
- Centre for Medical Informatics, Usher Institute, University of Edinburgh, Edinburgh, United Kingdom
| | | | - Vishal Sahni
- Medicines Research Centre, GlaxoSmithKline, Stevenage, United Kingdom
| | | | | | - Ewen M Harrison
- Edinburgh Transplant Unit, Edinburgh Royal Infirmary, Edinburgh, United Kingdom.,Centre for Medical Informatics, Usher Institute, University of Edinburgh, Edinburgh, United Kingdom
| | | | - Lorna P Marson
- Edinburgh Transplant Unit, Edinburgh Royal Infirmary, Edinburgh, United Kingdom.,Centre for Inflammation Research and
| | - Bryan R Conway
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, United Kingdom
| | - Stephen J Wigmore
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, United Kingdom.,Edinburgh Transplant Unit, Edinburgh Royal Infirmary, Edinburgh, United Kingdom
| | - Laura Denby
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, United Kingdom
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23
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Liu J, Zhang H, Li X, Wang L, Yu H, Huang J, Liu Q, Wang C, Jiang A. Diagnostic and prognostic significance of aberrant miR-652-3p levels in patients with acute decompensated heart failure and acute kidney injury. J Int Med Res 2020; 48:300060520967829. [PMID: 33249927 PMCID: PMC7708706 DOI: 10.1177/0300060520967829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objective This study aimed to examine a novel microRNA (miR-652-3p) biomarker to improve early diagnosis of acute kidney injury (AKI) in patients with acute decompensated heart failure (ADHF) and to evaluate the survival predictive value of miR-652-3p. Methods We retrospectively analyzed the data of 196 patients with ADHF, including 65 who developed AKI during hospitalization. Neutrophil gelatinase-associated lipocalin (NGAL) levels were measured in serum and urine samples. Real-time quantitative PCR was applied to evaluate miR-652-3p mRNA expression. The diagnostic performance of miR-652-3p was examined using receiver operating characteristic curve analysis. The prognostic value of miR-652-3p was also analyzed. Results Serum and urinary NGAL and miR-652-3p levels were elevated in patients with ADHF and AKI. Serum and urinary miR-652-3p expression had diagnostic value in predicting AKI onset in patients with ADHF, and it had improved diagnostic performance when used with NGAL. Patients with AKI and high miR-652-3p levels had a high failure rate of renal recovery and poor 180-day survival. Conclusion Serum and urinary miR-652-3p may be a candidate biomarker for early diagnosis of AKI in patients with ADHF and for predicting the prognosis of AKI. The combination of NGAL and miR-652-3p may accurately predict AKI onset in ADHF.
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Affiliation(s)
- Jiaolei Liu
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Hongmei Zhang
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xin Li
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Lin Wang
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Huining Yu
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Jiaohong Huang
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Qingjun Liu
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Chao Wang
- Department of Geriatrics, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Aili Jiang
- Kidney Disease and Blood Purification Centre, The Second Hospital of Tianjin Medical University, Tianjin, China
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24
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Sabet Sarvestani F, Azarpira N, Al-Abdullah IH, Tamaddon AM. microRNAs in liver and kidney ischemia reperfusion injury: insight to improve transplantation outcome. Biomed Pharmacother 2020; 133:110944. [PMID: 33227704 DOI: 10.1016/j.biopha.2020.110944] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/03/2020] [Accepted: 10/25/2020] [Indexed: 12/26/2022] Open
Abstract
Ischemia reperfusion injury (IRI) is a condition that occurs wherever blood flow and oxygen is reduced or absent, such as trauma, vascular disease, stroke, and solid organ transplantation. This condition can lead to tissue damage, especially during organ transplantation. Under such circumstances, some signaling pathways are activated, leading to up- or down- regulation of several genes such as microRNAs (miRNAs) that might attenuate or ameliorate this status. Therefore, by manipulating miRNAs level, they can be used as a biomarker for early diagnosis of IRI or suggestive to be therapeutic agents in clinical situation in future.
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Affiliation(s)
| | - Negar Azarpira
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Ismail H Al-Abdullah
- Department of Translational Research and Cellular Therapeutics, Diabetes and Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, USA.
| | - Ali-Mohammad Tamaddon
- Department of Pharmaceutics and Center for Nanotechnology in Drug Delivery, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
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25
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miR-182-5p and miR-378a-3p regulate ferroptosis in I/R-induced renal injury. Cell Death Dis 2020; 11:929. [PMID: 33116120 PMCID: PMC7595188 DOI: 10.1038/s41419-020-03135-z] [Citation(s) in RCA: 113] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 10/10/2020] [Accepted: 10/13/2020] [Indexed: 12/19/2022]
Abstract
Renal tubular cell death is the key factor of the pathogenesis of ischemia/reperfusion (I/R) kidney injury. Ferroptosis is a type of regulated cell death (RCD) found in various diseases. However, the underlying molecular mechanisms related to ferroptosis in renal I/R injury remain unclear. In the present study, we investigated the regulatory role of microRNAs on ferroptosis in I/R-induced renal injury. We established the I/R-induced renal injury model in rats, and H/R induced HK-2 cells injury in vitro. CCK-8 was used to measure cell viability. Fe2+ and ROS levels were assayed to evaluate the activation of ferroptosis. We performed RNA sequencing to profile the miRNAs expression in H/R-induced injury and ferroptosis. Western blot analysis was used to detect the protein expression. qRT-PCR was used to detect the mRNA and miRNA levels in cells and tissues. We further used luciferase reporter assay to verify the direct targeting effect of miRNA. We found that ischemia/reperfusion-induced ferroptosis in rat's kidney. We identified that miR-182-5p and miR-378a-3p were upregulated in the ferroptosis and H/R-induced injury, and correlates reversely with glutathione peroxidases 4 (GPX4) and solute carrier family 7 member 11 (SLC7A11) expression in renal I/R injury tissues, respectively. In vitro studies showed that miR-182-5p and miR-378a-3p induced ferroptosis in cells. We further found that miR-182-5p and miR-378a-3p regulated the expression of GPX4 and SLC7A11 negatively by directly binding to the 3'UTR of GPX4 and SLC7A11 mRNA. In vivo study showed that silencing miR-182-5p and miR-378a-3p alleviated the I/R-induced renal injury in rats. In conclusion, we demonstrated that I/R induced upregulation of miR-182-5p and miR-378a-3p, leading to activation of ferroptosis in renal injury through downregulation of GPX4 and SLC7A11.
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26
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Immunological organ modification during Ex Vivo machine perfusion: The future of organ acceptance. Transplant Rev (Orlando) 2020; 35:100586. [PMID: 33876730 DOI: 10.1016/j.trre.2020.100586] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 10/01/2020] [Accepted: 10/14/2020] [Indexed: 12/27/2022]
Abstract
Ex vivo machine perfusion (EVMP) has gained revitalized interest in recent years due to the increasing use of marginal organs which poorly tolerate the standard preservation method static cold storage (SCS). EVMP improves on SCS in a number of ways, most notably by the potential for reconditioning of the donor organ prior to transplantation without the ethical concerns associated with organ modulation before procurement. Immunomodulatory therapies administered during EVMP can influence innate and adaptive immune responses to reduce production of inflammatory molecules and polarize tissue-resident immune cells to a regulatory phenotype. The targeted inhibition of an inflammatory response can reduce ischemia-reperfusion injury following organ reoxygenation and therefore reduce incidence of graft dysfunction and rejection. Numerous approaches to modulate the inflammatory response have been applied in experimental models, with the ultimate goal of clinical translatability. Strategies to target the innate immune system include inhibiting inflammatory signaling pathways, upregulating anti-inflammatory mediators, and decreasing mitochondrial damage while those which target the adaptive immune system include mesenchymal stromal cells. Inhibitory RNA approaches target both the innate and adaptive immune systems with a focus on MHC knock-down. Future studies may address issues of therapeutic agent delivery through use of nanoparticles and explore novel strategies such as targeting co-inhibitory molecules to educate T-cells to a tolerogenic state. In this review, we summarize the cellular and acellular contributors to allograft dysfunction and rejection, discuss the strategies which have been employed pre-clinically during EVMP to modulate the donor organ immune environment, and suggest future directions for immunomodulatory EVMP studies.
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27
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Wu YL, Li HF, Chen HH, Lin H. MicroRNAs as Biomarkers and Therapeutic Targets in Inflammation- and Ischemia-Reperfusion-Related Acute Renal Injury. Int J Mol Sci 2020; 21:ijms21186738. [PMID: 32937906 PMCID: PMC7555653 DOI: 10.3390/ijms21186738] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 01/13/2023] Open
Abstract
Acute kidney injury (AKI), caused mainly by ischemia-reperfusion, sepsis, or nephrotoxins (such as contrast medium), is identified by an abrupt decline in kidney function and is associated with high morbidity and mortality. Despite decades of efforts, the pathogenesis of AKI remains poorly understood, and effective therapies are lacking. MicroRNAs (miRNAs) are small noncoding RNAs that regulate gene expression at the posttranscriptional level to control cell differentiation, development, and homeostasis. Additionally, extracellular miRNAs might mediate cell-cell communication during various physiological and pathological processes. Recently, mounting evidence indicates that miRNAs play a role in the pathogenesis of AKI. Moreover, emerging research suggests that because of their remarkable stability in body fluids, microRNAs can potentially serve as novel diagnostic biomarkers of AKI. Of note, our previous finding that miR-494 is rapidly elevated in urine but not in serum provides insight into the ultimate role of urine miRNAs in AKI. Additionally, exosomal miRNAs derived from stem cells, known as the stem cell secretome, might be a potential innovative therapeutic strategy for AKI. This review aims to provide new data obtained in this field of research. It is hoped that new studies on this topic will not only generate new insights into the pathophysiology of urine miRNAs in AKI but also might lead to the precise management of this fatal disease.
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Affiliation(s)
- Yueh-Lin Wu
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan;
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Division of Nephrology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan
- TMU Research Center of Urology and Kidney, Taipei Medical University, Taipei 110, Taiwan
| | - Hsiao-Fen Li
- Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan;
- PhD Program in Biotechnology Research and Development, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Hsi-Hsien Chen
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan;
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Division of Nephrology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan
- TMU Research Center of Urology and Kidney, Taipei Medical University, Taipei 110, Taiwan
- Correspondence: (H.-H.C.); (H.L.); Tel.: +886-27361661-3188 (H.-H.C.); +886-2-2737-3577 (H.L.); Fax: +886-2-5558-9890 (H.-H.C.)
| | - Heng Lin
- Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan;
- PhD Program in Biotechnology Research and Development, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
- Correspondence: (H.-H.C.); (H.L.); Tel.: +886-27361661-3188 (H.-H.C.); +886-2-2737-3577 (H.L.); Fax: +886-2-5558-9890 (H.-H.C.)
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28
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The protective function of miR-378 in the ischemia-reperfusion injury during renal transplantation and subsequent interstitial fibrosis of the renal allograft. Int Urol Nephrol 2020; 52:1791-1800. [PMID: 32661619 DOI: 10.1007/s11255-020-02540-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 06/15/2020] [Indexed: 10/23/2022]
Abstract
Survival time of kidney transplant patients is primarily threatened by chronic allograft dysfunction (CAD), whose typical feature is interstitial fibrosis and tubular atrophy (IF/TA). CAD could be caused by ischemia-reperfusion injury (IRI) during renal transplantation. MiR-378 is correlated with multiple kidney diseases and implicated in CAD. To clarify the underlying mechanism of miR-378 on renal allograft, we utilize renal unilateral IRI mice and H/R NRK52E cells. To evaluate the acute tubular damage, we determined the apoptotic rate by TUNEL assay and examined mice kidney sections of H&E staining 1 day after IRI. To assess the chronic renal interstitial inflammation and fibrosis, we detected the infiltration rates of CD45R+ leukocytes and Ly6b+ neutrophils by immunohistochemistry, examined mice kidney sections of picrosirius staining and measured the mRNA level of Col1a1 14 days after IRI. To investigate the H/R injury of NRK52E cells, MTT assay was performed to detect cell viability, TUNEL assay was performed to determine apoptotic rate and luciferase reporter assay was carried out to demonstrate the potential target of miR-378. Moreover, we determined the levels of miR-378 of renal allograft biopsies in healthy patients and patients diagnosed with IF/TA. We found agomir-378 treatment significantly reduced the apoptotic rate and tubular damage scores assessed by H&E staining 1 day after IRI. Agomir-378 treatment also decreased infiltration rates of both CD45R+ leukocytes and Ly6b+ neutrophils and fibrosis examined by picrosirius staining and by the mRNA level of Col1a1 14 days after IRI. Experiments in vitro revealed that miR-378 increased cell viability and decreased apoptotic rate of NRK52E cells subjected to H/R. Additionally, luciferase reporter assay confirmed that caspase 3 was targeted by miR-378 directly. Furthermore, we found the levels of miR-378 were significantly lower in renal allografts of patients with IF/TA than those of healthy controls. Taken together, we have found that miR-378 has potential protective effects on renal allografts to prevent IRI during kidney transplantation and following IF/TA of renal allografts.
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29
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Shi Z, Wang R, Huang L, Chen X, Xu M, Zha D, Ma Y. Integrative analysis of miRNAs-mRNAs reveals that miR-182 up-regulation contributes to proliferation and invasion of nasopharyngeal carcinoma by targeting PTEN. Aging (Albany NY) 2020; 12:11568-11578. [PMID: 32541092 PMCID: PMC7343470 DOI: 10.18632/aging.103316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 04/28/2020] [Indexed: 12/28/2022]
Abstract
Objective: Several miRNAs have been found to be abnormally expressed during nasopharyngeal carcinoma development. Nevertheless, the interaction between miRNAs and downstream genes remains unexploited. In this study, we aim to investigate miRNAs-mRNAs interaction and the mechanism of miR-182 in NPC. Results: Integrative analysis identified several hub-miRNAs that drive NPC pathogenesis. The expression of miR-182 was notably increased in 32 NPC tissues and cell lines (CNE1 and 5-8F). Up-regulation of miR-182 was strongly correlated with poor prognosis of NPC patients. Moreover, the proliferation and invasion of NPC cells were notably increased in miR-182 mimics condition and decreased in miR-182 inhibitor condition. Furthermore, PTEN was verified to be a target of miR-182 and overexpression of PTEN could abrogate the promotion effect of miR-182 mimics on NPC invasion. Conclusions: We identified several hub-miRNAs that may drive NPC pathogenesis. MiR-182 could promote proliferation and invasion of NPC cells via targeting PTEN, which provides a new insight into the clinical therapy of NPC. Materials and Methods: Genome-wide miRNAs of NPC tissues was analyzed using high-throughput sequencing and bioinformatics tools. QRT-PCR experiment was conducted to measure relative expression level. Dual-luciferase reporter assay was used to verify target relationship. The proliferation and invasion of transfected cells were measured by CCK-8 and transwell assay.
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Affiliation(s)
- Zhaohui Shi
- Department of Otorhinolaryngology Head and Neck Surgery, Air Force Medical University, XiJing Hospital, Xian, Shanxi, China
| | - Rushi Wang
- Department of Otolaryngology Head and Neck Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ligui Huang
- Department of Otorhinolaryngology Head and Neck Surgery, The 908th Hospital of Chinese People's Liberation Army Joint Logistic Support Force, Nanchang, Jiangxi, China
| | - Xiaodong Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Air Force Medical University, XiJing Hospital, Xian, Shanxi, China
| | - Min Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Air Force Medical University, XiJing Hospital, Xian, Shanxi, China
| | - Dingjun Zha
- Department of Otorhinolaryngology Head and Neck Surgery, Air Force Medical University, XiJing Hospital, Xian, Shanxi, China
| | - Yanhong Ma
- Department of Otolaryngology Head and Neck Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
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30
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Ramanathan K, Padmanabhan G. MiRNAs as potential biomarker of kidney diseases: A review. Cell Biochem Funct 2020; 38:990-1005. [PMID: 32500596 DOI: 10.1002/cbf.3555] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 03/15/2020] [Accepted: 05/03/2020] [Indexed: 12/17/2022]
Abstract
MicroRNAs (miRNAs) are 22 nucleotides short, non-coding and tissue-specific single-stranded RNA which modulates target gene expression. Presently, shreds of evidence confirmed that miRNAs play a key role in kidney pathophysiology. The objectives of the present review are to summarize new research data towards the latest developments in the potential use of miRNAs as a diagnostic biomarker for kidney diseases. This holistic information will update the existing knowledge of kidney disease biomarkers. "miRNA profile for Diabetic Kidney disease, Acute kidney injury, Renal fibrosis, hemodialysis, transplants, FSGS, IgAN, etc." are the search keywords which have been used in this review. The search outcome gave an exciting insightful perception of miRNAs competence as a biomarker. Also it is observed that various samples as plasma, urine and biopsies were used for profiling the miRNA expression. The miRNAs were not only used for diagnostic biomarkers but also for therapeutic targets. Each kidney disease showed different miRNAs expression profile and few miRNAs quite common with some kidney diseases. miRNAs are simple and efficient diagnostic biomarkers for kidney diseases.
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Affiliation(s)
- Kumaresan Ramanathan
- Department of Medical Biochemistry, Division of Biomedical Sciences, School of Medicine, College of Health Sciences, Mekelle University (Ayder Campus), Mekelle, Ethiopia
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31
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Brandenburger T, Lorenzen JM. Diagnostic and Therapeutic Potential of microRNAs in Acute Kidney Injury. Front Pharmacol 2020; 11:657. [PMID: 32477132 PMCID: PMC7240101 DOI: 10.3389/fphar.2020.00657] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 04/22/2020] [Indexed: 01/22/2023] Open
Abstract
During hospital stay, about 20% of adult patients experience an episode of acute kidney injury (AKI), which is characterized by a rapid decrease in kidney function. Diagnostic tools regarding early diagnosis of kidney dysfunction prior to AKI and markers of renal recovery are not available. Additionally, there is no therapeutic option for the treatment of AKI. Thus, better and more specific diagnostic and therapeutic options are urgently needed in daily clinical practice. NoncodingRNAs (ncRNAs) have come into focus of research in the context of AKI in the last decade. The best characterized group of ncRNAs are microRNAs (miRNAs). An increasing body of literature has shown that miRNAs are involved in the pathogenesis of AKI and that they are promising future tools in the diagnosis and therapy of AKI. However, there are obstacles to be overcome before miRNAs can be transferred to patient care. This review will give an overview of our current knowledge of miRNA involvement in the context of AKI while critically evaluating their diagnostic and therapeutic potential.
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Affiliation(s)
- Timo Brandenburger
- Department of Anesthesiology, University Hospital Duesseldorf, Duesseldorf, Germany
| | - Johan M Lorenzen
- Division of Nephrology, University Hospital Zurich, Zurich, Switzerland
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32
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Liu C, Xu X, Huang C, Zhang L, Shang D, Cai W, Wang Y. Circ_002664/miR-182-5p/Herpud1 pathway importantly contributes to OGD/R-induced neuronal cell apoptosis. Mol Cell Probes 2020; 53:101585. [PMID: 32376213 DOI: 10.1016/j.mcp.2020.101585] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 04/15/2020] [Accepted: 04/27/2020] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Apoptosis is a prominent form of neuron death in cerebral ischemia-reperfusion-induced injury. Accompanied with the pathogenesis, Circ_002664 is upregulated. However, its role in the neuron apoptosis and the underlying mechanisms are unknown. METHODS In this study, HT22 cells were treated with oxygen glucose deprivation and reoxygenation (OGD/R). The cell viability, apoptosis, proliferation and mitochondrial potential were examined. The expressions of interested genes, Circ_002664, miR-182-5p and Herpud1, were measured. The roles of these genes in OGD/R-induced cell injury were investigated by knockdown, overexpression alone or in combination. Additionally, the interactions between Circ_002664, miR-182-5p and Herpud1 were validated by luciferase report assay. The levels of MAP2, CHOP, Cytochrome C (CYC) and cleaved caspase-3 were determined. RESULTS OGD/R treatment significantly increased cell apoptosis, decreased cell proliferation and mitochondrial potential, as well as increased Circ_002664 and Herpud1 expressions, and decreased miR-182-5p level. Circ_002664 knockdown markedly inhibited the effects by OGD/R on cell survival and altered expression of miR-182-5p and Herpud1. MiR-182-5p was observed sponged by Circ_002664 and negatively mediated its effect above mentioned, and this was by directly targeting Herpud1. Additionally, it was observed that CHOP expressions were regulated by Circ_002664/miR-182-5p/Herpud1 pathway, and in turn mediated its regulation in CYC and cleaved caspase-3. CONCLUSIONS In summary, our data showed that the Circ_002664 importantly contributed to neuronal cell apoptosis induced by OGD/R treatment, and this might be achieved by directly targeting miR-182-5p/Herpud1 pathway.
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Affiliation(s)
- Chao Liu
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, 471000, China.
| | - Xiaohui Xu
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, 471000, China
| | - Chao Huang
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, 471000, China
| | - Li Zhang
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, 471000, China
| | - Dandan Shang
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, 471000, China
| | - Weiwei Cai
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, 471000, China
| | - Yupeng Wang
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, 471000, China
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33
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Dang X, He B, Ning Q, Liu Y, Chang Y, Chen M. Suppression of TRIM8 by microRNA-182-5p restricts tumor necrosis factor-α-induced proliferation and migration of airway smooth muscle cells through inactivation of NF-Κb. Int Immunopharmacol 2020; 83:106475. [PMID: 32283508 DOI: 10.1016/j.intimp.2020.106475] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/19/2020] [Accepted: 04/02/2020] [Indexed: 12/11/2022]
Abstract
MicroRNAs (miRNAs) have emerged as critical modulators involved in the regulation of airway remodeling in asthma. MicroRNA-182-5p (miR-182-5p) has been reported as a key miRNA in regulating the proliferation and migration of various cell types, and its dysfunction contributes is implicated in a wide range of pathological processes. Yet, it remains unknown whether miR-182-5p modulates the proliferation and migration of airway smooth muscle (ASM) cells during asthma. In the present study, we aimed to determine the potential role of miR-182-5p in regulating the proliferation and migration of ASM cells induced by tumor necrosis factor (TNF)-α in vitro. We found that TNF-α stimulation markedly reduced miR-182-5p expression in ASM cells. Gain-of-function experiments showed that miR-182-5p upregulation suppressed the proliferation and migration of ASM cells induced by TNF-α. By contrast, miR-182-5p inhibition had the opposite effect. Notably, tripartite motif 8 (TRIM8) was identified as a target gene of miR-182-5p. TRIM8 expression was induced by TNF-α stimulation, and TRIM8 knockdown markedly impeded TNF-α-induced ASM cell proliferation and migration. Moreover, miR-182-5p overexpression or TRIM8 knockdown significantly downregulated the activation of nuclear factor-κB (NF-κB) induced by TNF-α. However, TRIM8 restoration partially reversed the miR-182-5p-mediated inhibitory effect on TNF-α-induced ASM cell proliferation and migration. In conclusion, our study indicates that miR-182-5p restricts TNF-α-induced ASM cell proliferation and migration through downregulation of NF-κB activation via targeting TRIM8. The results of our study highlight the potential importance of the miR-182-5p/TRIM8/NF-κB axis in the airway remodeling of asthma.
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Affiliation(s)
- Xiaomin Dang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China.
| | - Beibei He
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Qian Ning
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Ya Liu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Ying Chang
- Center for Translational Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi Province, China
| | - Mingwei Chen
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
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Xie LB, Chen B, Liao X, Chen YF, Yang R, He SR, Pei LJ, Jiang R. LINC00963 targeting miR-128-3p promotes acute kidney injury process by activating JAK2/STAT1 pathway. J Cell Mol Med 2020; 24:5555-5564. [PMID: 32270599 PMCID: PMC7214170 DOI: 10.1111/jcmm.15211] [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: 07/14/2019] [Revised: 02/20/2020] [Accepted: 02/21/2020] [Indexed: 12/11/2022] Open
Abstract
The role of long non‐coding RNAs (lncRNAs) in kidney diseases has been gradually discovered in recent years. LINC00963, as an lncRNA, was found to be involved in chronic renal failure. However, the role and molecular mechanisms of LINC00963 engaged in acute kidney injury (AKI) were still unclear. In this study, we established rat AKI models by ischaemia and reperfusion (I/R) treatment. Urea and creatinine levels were determined, and histological features of kidney tissues were examined following HE staining. CCK8 assay was chosen to assess the viability of hypoxia‐induced HK‐2 cells. Dual‐luciferase reporter gene assays were performed to verify the target relationship between LINC00963 and microRNA. The mRNA and protein levels were assayed by RT‐qPCR and Western blot, respectively. Annexin V‐FITC/PI and TUNEL staining were used to evaluate apoptosis. LINC00963 was highly expressed in the cell and rat models, and miR‐128‐3p was predicted and then verified as a target gene of LINC00963. Knockdown of LINC00963 reduced acute renal injury both in vitro and in vivo. LINC00963 activated the JAK2/STAT1 pathway to aggravate renal I/R injury. LINC00963 could target miR‐128‐3p to reduce G1 arrest and apoptosis through JAK2/STAT1 pathway to promote the progression of AKI.
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Affiliation(s)
- Li-Bo Xie
- Department of Urology, Nephropathy Clinical Medical Research Center of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Bo Chen
- Department of Human Anatomy, School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
| | - Xue Liao
- College of Clinical Medicine, Southwest Medical University School of Clinical Medical Sciences, Luzhou, China
| | - Yi-Feng Chen
- College of Clinical Medicine, Southwest Medical University School of Clinical Medical Sciences, Luzhou, China
| | - Rui Yang
- College of Clinical Medicine, Southwest Medical University School of Clinical Medical Sciences, Luzhou, China
| | - Si-Rong He
- Department of Immunology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
| | - Li-Jun Pei
- Department of Urology, Nephropathy Clinical Medical Research Center of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Rui Jiang
- Department of Urology, Nephropathy Clinical Medical Research Center of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China
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Cheng Q, Wang L. LncRNA XIST serves as a ceRNA to regulate the expression of ASF1A, BRWD1M, and PFKFB2 in kidney transplant acute kidney injury via sponging hsa-miR-212-3p and hsa-miR-122-5p. Cell Cycle 2020; 19:290-299. [PMID: 31914881 PMCID: PMC7028162 DOI: 10.1080/15384101.2019.1707454] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 10/17/2019] [Accepted: 11/28/2019] [Indexed: 12/15/2022] Open
Abstract
We aimed to identify potential mechanism associated with acute kidney injury (AKI) after kidney transplantation. The dataset GSE53771, which contained 18 zero-hour (ZERO group) and 18 selected post-transplant (POST group) biopsy samples from 18 kidney allografts (8 AKI and 10 controls) was downloaded from GEO database. Differentially expressed miRNAs (DEMIs) were screened using limma package, and bidirectional hierarchical clustering of the DEMIs was performed using the pheatmap package. Target genes of DEMIs were predicted by miRWalk 2.0, miRNA-target genes networks were presented using Cytoscape, protein-protein interaction (PPI) networks were constructed by STRING (version:10.0) database, and competing endogenous RNAs (ceRNA) regulating network were constructed using Cytoscape. In ZERO and POST groups, a total of 4 and 24 differentially expressed miRNAs were obtained in AKI samples compared with control, respectively. Specifically, 71 lncRNAs were obtained to interact with five miRNAs (hsa-miR-215-5p, hsa-miR-192-5p, hsa-miR-422a, hsa-miR-212-3p and hsa-miR-122-5p). Histone chaperone ASF1A (ASF1A) and bromodomain and WD repeat-containing protein 1(BRWD1) were targeted by hsa-miR-212-3p in PPI network. In ceRNA network, lncRNA XIST could interact with four miRNAs (hsa-miR-212-3p, hsa-miR-122-5p, hsa-miR-215-5p, and hsa-miR-192-5p). LncRNA XIST might serve as a ceRNA to sponge hsa-miR-212-3p to regulate the development of AKI via altering the expression of ASF1A/BRWD1. Furthermore, lncRNA XIST could also interact with hsa-miR-122-5p to modulate the expression of PFKFB2 in thyroid hormone signaling pathway and AMPK signaling pathway. LncRNA XIST can serve as a ceRNA to sponge hsa-miR-212-3p and hsa-miR-122-5p to regulate AKI progression via modulating the expression of ASF1A, BRWD1, and PFKFB2.[Figure: see text].
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Affiliation(s)
- Qian Cheng
- Nephrology Department, The Second Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Lin Wang
- Cardiology Department, Dalian Central Hospital, Dalian, Liaoning, China
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Diagnostic, Prognostic, and Therapeutic Value of Non-Coding RNA Expression Profiles in Renal Transplantation. Diagnostics (Basel) 2020; 10:diagnostics10020060. [PMID: 31978997 PMCID: PMC7168890 DOI: 10.3390/diagnostics10020060] [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: 12/31/2019] [Revised: 01/17/2020] [Accepted: 01/19/2020] [Indexed: 02/06/2023] Open
Abstract
End-stage renal disease is a public health problem responsible for millions of deaths worldwide each year. Although transplantation is the preferred treatment for patients in need of renal replacement therapy, long-term allograft survival remains challenging. Advances in high-throughput methods for large-scale molecular data generation and computational analysis are promising to overcome the current limitations posed by conventional diagnostic and disease classifications post-transplantation. Non-coding RNAs (ncRNAs) are RNA molecules that, despite lacking protein-coding potential, are essential in the regulation of epigenetic, transcriptional, and post-translational mechanisms involved in both health and disease. A large body of evidence suggests that ncRNAs can act as biomarkers of renal injury and graft loss after transplantation. Hence, the focus of this review is to discuss the existing molecular signatures of non-coding transcripts and their value to improve diagnosis, predict the risk of rejection, and guide therapeutic choices post-transplantation.
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Brandenburger T, Salgado Somoza A, Devaux Y, Lorenzen JM. Noncoding RNAs in acute kidney injury. Kidney Int 2019; 94:870-881. [PMID: 30348304 DOI: 10.1016/j.kint.2018.06.033] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 05/30/2018] [Accepted: 06/11/2018] [Indexed: 02/09/2023]
Abstract
Acute kidney injury (AKI) is an important health issue concerning ∼50% of patients treated in intensive care units. AKI mainly occurs after sepsis, acute ischemia, nephrotoxicity, or hypoxia and leads to severe damage of the kidney and to an increased risk of mortality. The diagnosis of AKI is currently based on creatinine urea levels and diuresis. Yet, novel markers may improve the accuracy of this diagnosis at an early stage of the disease, thereby allowing early prevention and therapy, ultimately leading to a reduction in the need for renal replacement therapy and decreased mortality. Non-protein-coding RNAs or noncoding RNAs are central players in development and disease. They are important regulatory molecules that allow a fine-tuning of gene expression and protein synthesis. This regulation is necessary to maintain homeostasis, and its dysregulation is often associated with disease development. Noncoding RNAs are present in the kidney and in body fluids and their expression is modulated during AKI. This review article assembles the current knowledge of the role of noncoding RNAs, including microRNAs, long noncoding RNAs and circular RNAs, in the pathogenesis of AKI. Their potential as biomarkers and therapeutic targets as well as the challenges to translate research findings to clinical application are discussed. Although microRNAs have entered clinical testing, preclinical and clinical trials are needed before long noncoding RNAs and circular RNAs may be considered as useful biomarkers or therapeutic targets of AKI.
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Affiliation(s)
- Timo Brandenburger
- Department of Anesthesiology, University Hospital Duesseldorf, Duesseldorf, Germany.
| | - Antonio Salgado Somoza
- Cardiovascular Research Unit, Department of Population Health, Luxembourg Institute of Health, Luxembourg, Luxembourg
| | - Yvan Devaux
- Cardiovascular Research Unit, Department of Population Health, Luxembourg Institute of Health, Luxembourg, Luxembourg
| | - Johan M Lorenzen
- Division of Nephrology, University Hospital Zurich, Zurich, Switzerland
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Wu J, Li DD, Li JY, Yin YC, Li PC, Qiu L, Chen LM. Identification of microRNA-mRNA networks involved in cisplatin-induced renal tubular epithelial cells injury. Eur J Pharmacol 2019; 851:1-12. [PMID: 30768982 DOI: 10.1016/j.ejphar.2019.02.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 02/01/2019] [Accepted: 02/11/2019] [Indexed: 02/06/2023]
Abstract
Cisplatin is a widely used chemotherapeutic drug that often causes acute kidney injury (AKI) in cancer patients. The contribution of miRNAs to the cisplatin-induced renal tubular epithelial cell injury remains largely unknown. Here we performed an integrative network analysis of miRNA and mRNA expression profiles to shed light into the underlying mechanism of cisplatin-induced renal tubular epithelial cell injury. Microarray analysis identified 47 differentially expressed miRNAs, among them 26 were upregulated and 21 were downregulated. Moreover, integrating dysregulated miRNAs target prediction and altered mRNA expression enabled us to identify 1181 putative target genes for further bioinformatics analysis. Gene ontology (GO) analysis revealed that the putative target genes were involved in apoptosis process and regulation of transcription. Pathway analysis indicated that the top upregulated pathways included MAPK and p53 signaling pathway, while the top downregulated pathways were PI3K-Akt and Wnt signaling pathway. Further network analysis showed that MAPK signaling pathway and apoptosis with the highest degree were identified as core pathways, hsa-miR-9-3p and hsa-miR-371b-5p as the most critical miRNAs, and CASK, ASH1L, CDK6 etc. as hub target genes. In addition, the expression level change of selected five microRNAs (hsa-miR-4299, hsa-miR-297, hsa-miR-3135b, hsa-miR-9-3p, and hsa-miR-371b-5p) and two mRNAs( CASK and CDK6) were validated in cisplatin-induced HK-2 cells. Furthermore, a similar trend of expression level change was observed in NRK-52E cells by cisplatin treatment. Overall, our results provide the molecular basis and potential targets for the treatment of cisplatin-induced renal tubular cell injury.
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Affiliation(s)
- Jie Wu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing 100730, China
| | - Dan-Dan Li
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing 100730, China
| | - Jia-Yao Li
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing 100730, China
| | - Yi-Cong Yin
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing 100730, China
| | - Peng-Chang Li
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing 100730, China
| | - Ling Qiu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing 100730, China.
| | - Li-Meng Chen
- Department of Nephrology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing 100730, China.
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Wei Q, Sun H, Song S, Liu Y, Liu P, Livingston MJ, Wang J, Liang M, Mi QS, Huo Y, Nahman NS, Mei C, Dong Z. MicroRNA-668 represses MTP18 to preserve mitochondrial dynamics in ischemic acute kidney injury. J Clin Invest 2018; 128:5448-5464. [PMID: 30325740 DOI: 10.1172/jci121859] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 10/04/2018] [Indexed: 01/02/2023] Open
Abstract
The pathogenesis of ischemic diseases remains unclear. Here we demonstrate the induction of microRNA-668 (miR-668) in ischemic acute kidney injury (AKI) in human patients, mice, and renal tubular cells. The induction was HIF-1 dependent, as HIF-1 deficiency in cells and kidney proximal tubules attenuated miR-668 expression. We further identified a functional HIF-1 binding site in the miR-668 gene promoter. Anti-miR-668 increased apoptosis in renal tubular cells and enhanced ischemic AKI in mice, whereas miR-668 mimic was protective. Mechanistically, anti-miR-668 induced mitochondrial fragmentation, whereas miR-668 blocked mitochondrial fragmentation during hypoxia. We analyzed miR-668 target genes through immunoprecipitation of microRNA-induced silencing complexes followed by RNA deep sequencing and identified 124 protein-coding genes as likely targets of miR-668. Among these genes, only mitochondrial protein 18 kDa (MTP18) has been implicated in mitochondrial dynamics. In renal cells and mouse kidneys, miR-668 mimic suppressed MTP18, whereas anti-miR-668 increased MTP18 expression. Luciferase microRNA target reporter assay further verified MTP18 as a direct target of miR-668. In renal tubular cells, knockdown of MTP18 suppressed mitochondrial fragmentation and apoptosis. Together, the results suggest that miR-668 is induced via HIF-1 in ischemic AKI and that, upon induction, miR-668 represses MTP18 to preserve mitochondrial dynamics for renal tubular cell survival and kidney protection.
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Affiliation(s)
- Qingqing Wei
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, Georgia, USA
| | - Haipeng Sun
- Department of Nephrology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Shuwei Song
- Department of Nephrology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Yong Liu
- Department of Physiology, Center of Systems Molecular Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Pengyuan Liu
- Department of Physiology, Center of Systems Molecular Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Man Jiang Livingston
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, Georgia, USA
| | - Jianwen Wang
- Department of Nephrology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Mingyu Liang
- Department of Physiology, Center of Systems Molecular Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Qing-Sheng Mi
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, Michigan, USA
| | | | - Norris Stanley Nahman
- Department of Medicine, Medical College of Georgia at Augusta University, Augusta, Georgia, USA
| | - Changlin Mei
- Department of Nephrology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Zheng Dong
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, Georgia, USA.,Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, China.,Charlie Norwood VA Medical Center, Augusta, Georgia, USA
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Wang X, Wang G, Zhang X, Dou Y, Dong Y, Liu D, Xiao J, Zhao Z. Inhibition of microRNA-182-5p contributes to attenuation of lupus nephritis via Foxo1 signaling. Exp Cell Res 2018; 373:91-98. [PMID: 30308195 DOI: 10.1016/j.yexcr.2018.09.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 09/28/2018] [Accepted: 09/29/2018] [Indexed: 12/16/2022]
Abstract
MiR-182-5p suppresses expression of Foxo1 that is a protective factor in renal disorders and is up-regulated in systemic lupus erythematosus patients. Thus, we hypothesized that dys-function of miR-182-5p/Foxo1 axis contributed to development of lupus nephritis (LN). Firstly, we investigated the expressions of miR-182-5p and Foxo1 in LN patients and during growth of LN MRL/lpr mice. Then we subjected MRL/lpr mice to the injection of miR-182-5p antagomirs and assessed the effect of miR-182-5p inhibition on renal structure and function. In vitro, we administrated renal cell lines with TGF-β1 to explore the relation between renal fibrosis and miR-182-5p. The level of miR-182-5p was up-regulated in high Chronicity Index patients while the level of Foxo1 was suppressed. The progression of LN in mice was associated with the increased level of miR-182-5p and the decreased level of Foxo1. The inhibition of miR-182-5p ameliorated renal structure and function impairments associated with LN, along with the increased expression of Foxo1. The administration of TGF-β1 in vitro increased the expression of miR-182-5p in renal cells in an overall dose-dependent manner. The current study demonstrated that the expression of miR-182-5p was increased in LN patients, contributing to the suppression of Foxo1 and development of LN.
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Affiliation(s)
- Xiaoyang Wang
- Nephrology Hospital, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China.
| | - Guangjie Wang
- Department of Ultrasound, The Third Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou 450008, People's Republic of China
| | - Xiaoxue Zhang
- Nephrology Hospital, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Yanna Dou
- Nephrology Hospital, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Yijun Dong
- Nephrology Hospital, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Dong Liu
- Nephrology Hospital, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Jing Xiao
- Nephrology Hospital, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Zhanzheng Zhao
- Nephrology Hospital, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China.
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Schnuelle P, Benck U, Yard BA. Dopamine in transplantation: Written off or comeback with novel indication? Clin Transplant 2018; 32:e13292. [DOI: 10.1111/ctr.13292] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/10/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Peter Schnuelle
- Center for Renal Diseases; Weinheim Germany
- V Department of Medicine; University Medical Center Mannheim; Mannheim Germany
| | - Urs Benck
- V Department of Medicine; University Medical Center Mannheim; Mannheim Germany
| | - Benito A. Yard
- V Department of Medicine; University Medical Center Mannheim; Mannheim Germany
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Li H, Ma Y, Chen B, Shi J. miR-182 enhances acute kidney injury by promoting apoptosis involving the targeting and regulation of TCF7L2/Wnt/β-catenins pathway. Eur J Pharmacol 2018; 831:20-27. [PMID: 29733821 DOI: 10.1016/j.ejphar.2018.05.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 04/09/2018] [Accepted: 05/03/2018] [Indexed: 12/15/2022]
Abstract
Acute kidney injury (AKI) is a sudden decay in renal function leading to increasing morbidity and mortality. miR-182 has been reported to be actively involved in kidney diseases. However, the function and molecular mechanism of miR-182 in AKI still need to be elucidated. The levels of serum creatinine (SCr), blood urea nitrogen (BUN), and urine Kim-1 in I/R-induced rat AKI model were detected by a Beckman Autoanalyzer. miR-182 and transcription factor 7-like-2 (TCF7L2) mRNA expression were measured by qRT-PCR. Flow cytometry and caspase-3 colorimetry analysis were performed to determine NRK-52E cell apoptosis. Bioinformatics and dual-luciferase reporter were used to identify the interaction between miR-182 and TCF7L2. miR-182 expression was increased in both I/R-induced rat models and hypoxia-treated NRK-52E cells, and miR-182 overexpression stimulated the apoptosis of hypoxia-induced NRK-52E cells. Dual-luciferase analysis disclosed that TCF7L2 was a target of miR-182. TCF7L2 suppressed hypoxia-induced apoptosis in NRK-52E cells, and the inhibitory effect of TCF7L2 on cell apoptosis could be reversed with miR-182 restoration. Moreover, the activity of Wnt/β-catenin signaling pathway was promoted following overexpression of TCF7L2 in NRK-52E cells with hypoxia treatment, and this effect was greatly attenuated by the increased miR-182 expression. Finally, in vivo experiment also validated the alleviation of miR-182 inhibitor on I/R-induced kidney injury and apoptosis via regulating TCF7L2/ Wnt/β-catenin pathway. miR-182 exacerbated AKI involving the targeting and regulation of TCF7L2/Wnt/β-catenin signaling, unveiling a novel regulatory pathway in ischemia-reperfusion injury and elucidating a potential biomarker for AKI treatment.
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Affiliation(s)
- Huicong Li
- Department of Nephrology, Huaihe Hospital of Henan University, Kaifeng 475000, China.
| | - Yali Ma
- Department of Nephrology, Huaihe Hospital of Henan University, Kaifeng 475000, China
| | - Baoping Chen
- Department of Nephrology, Huaihe Hospital of Henan University, Kaifeng 475000, China
| | - Jun Shi
- Department of Nephrology, Huaihe Hospital of Henan University, Kaifeng 475000, China
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Zou YF, Zhang W. Role of microRNA in the detection, progression, and intervention of acute kidney injury. Exp Biol Med (Maywood) 2017; 243:129-136. [PMID: 29264947 DOI: 10.1177/1535370217749472] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Acute kidney injury, characterized by sharply decreased renal function, is a common and important complication in hospitalized patients. The pathological mechanism of acute kidney injury is mainly related to immune activation and inflammation. Given the high morbidity and mortality rates of hospitalized patients with acute kidney injury, the identification of biomarkers useful for assessing risk, making an early diagnosis, evaluating the prognosis, and classifying the injury severity is urgently needed. Furthermore, investigation into the development of acute kidney injury and potential therapeutic targets is required. While microRNA was first discovered in Caenorhabditis elegans, Gary Ruvkun's laboratory identified the first microRNA target gene. Together, these two important findings confirmed the existence of a novel post-transcriptional gene regulatory mechanism. Considering that serum creatinine tests often fail in the early detection of AKI, testing for microRNAs as early diagnostic biomarkers has shown great potential. Numerous studies have identified microRNAs that can serve as biomarkers for the detection of acute kidney injury. In addition, as microRNAs can control the expression of multiple proteins through hundreds or thousands of targets influencing multiple signaling pathways, the number of studies on the functions of microRNAs in AKI progression is increasing. Here, we mainly focus on research into microRNAs as biomarkers and explorations of their functions in acute kidney injury. Impact statement Firstly, we have discussed the potential advantages and limitations of miRNA as biomarkers. Secondly, we have summarized the role of miRNA in the progress of AKI. Finally, we have made a vision of miRNA's potential and advantages as therapeutic target intervention AKI.
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Affiliation(s)
- Yan-Fang Zou
- Department of Nephrology, 66281 School of Medicine, Ruijin Hospital, Shanghai Jiao Tong University , Shanghai 200025, PR China
| | - Wen Zhang
- Department of Nephrology, 66281 School of Medicine, Ruijin Hospital, Shanghai Jiao Tong University , Shanghai 200025, PR China
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Genome-wide Profiling of Urinary Extracellular Vesicle microRNAs Associated With Diabetic Nephropathy in Type 1 Diabetes. Kidney Int Rep 2017; 3:555-572. [PMID: 29854963 PMCID: PMC5976846 DOI: 10.1016/j.ekir.2017.11.019] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 11/15/2017] [Accepted: 11/27/2017] [Indexed: 01/01/2023] Open
Abstract
Introduction Diabetic nephropathy (DN) is a form of progressive kidney disease that often leads to end-stage renal disease (ESRD). It is initiated by microvascular complications due to diabetes. Although microalbuminuria (MA) is the earliest clinical indication of DN among patients with type 1 diabetes (T1D), it lacks the sensitivity and specificity to detect the early onset of DN. Recently, microRNAs (miRNAs) have emerged as critical regulators in diabetes as well as various forms of kidney disease, including renal fibrosis, acute kidney injury, and progressive kidney disease. Additionally, circulating extracellular miRNAs, especially miRNAs packaged in extracellular vesicles (EVs), have garnered significant attention as potential noninvasive biomarkers for various diseases and health conditions. Methods As part of the University of Pittsburgh Epidemiology of Diabetes Complications (EDC) study, urine was collected from individuals with T1D with various grades of DN or MA (normal, overt, intermittent, and persistent) over a decade at prespecified intervals. We isolated EVs from urine and analyzed the small-RNA using NextGen sequencing. Results We identified a set of miRNAs that are enriched in urinary EVs compared with EV-depleted samples, and identified a number of miRNAs showing concentration changes associated with DN occurrence, MA status, and other variables, such as hemoglobin A1c levels. Conclusion Many of the miRNAs associated with DN occurrence or MA status directly target pathways associated with renal fibrosis (including transforming growth factor-β and phosphatase and tensin homolog), which is one of the major contributors to the pathology of DN. These miRNAs are potential biomarkers for DN and MA.
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Suppressed autophagic response underlies augmentation of renal ischemia/reperfusion injury by type 2 diabetes. Sci Rep 2017; 7:5311. [PMID: 28706237 PMCID: PMC5509657 DOI: 10.1038/s41598-017-05667-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 06/01/2017] [Indexed: 01/09/2023] Open
Abstract
Diabetes mellitus is a major risk factor for acute kidney injury (AKI). Here, we hypothesized that suppression of autophagic response underlies aggravation of renal ischemia/reperfusion (I/R) injury by type 2 diabetes mellitus (T2DM). In OLETF, a rat model of T2DM, and its non-diabetic control, LETO, AKI was induced by unilateral nephrectomy and 30-min occlusion and 24-h reperfusion of the renal artery in the contralateral kidney. Levels of serum creatinine and blood urea nitrogen and tubular injury score after I/R were significantly higher in OLETF than in LETO. Administration of chloroquine, a widely used autophagy inhibitor, aggravated I/R-induced renal injury in LETO, but not in OLETF. In contrast to LETO, OLETF exhibited no increase in autophagosomes in the proximal tubules after I/R. Immunoblotting showed that I/R activated the AMPK/ULK1 pathway in LETO but not in OLETF, and mTORC1 activation after I/R was enhanced in OLETF. Treatment of OLETF with rapamycin, an mTORC1 inhibitor, partially restored autophagic activation in response to I/R and significantly attenuated I/R-induced renal injury. Collectively, these findings indicate that suppressed autophagic activation in proximal tubules by impaired AMPK/ULK1 signaling and upregulated mTORC1 activation underlies T2DM-induced worsening of renal I/R injury.
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Wekerle T, Segev D, Lechler R, Oberbauer R. Strategies for long-term preservation of kidney graft function. Lancet 2017; 389:2152-2162. [PMID: 28561006 DOI: 10.1016/s0140-6736(17)31283-7] [Citation(s) in RCA: 125] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 03/13/2017] [Accepted: 03/16/2017] [Indexed: 12/21/2022]
Abstract
Kidney transplantation has become a routine procedure in the treatment of patients with kidney failure, and requires collaboration of experts from different disciplines, such as nephrology, surgery, immunology, pathology, infectious disease medicine, cardiology, and oncology. Grafts can be obtained from deceased or living donors, with different logistical requirements and implications for long-term graft patency. 1-year graft survival rates are greater than 95% in many centres but improvement of long-term function remains a challenge. New developments in molecular immunology and computational biology have increased precision of donor and recipient matching of HLA and non-HLA compatibility. Individual omics-wide molecular diagnostics, extracorporeal therapies, and drug developments allow for precise individual decision making and treatment. Tolerance induction by mixed chimerism without toxic conditioning and with a low risk of graft versus host disease is a visionary but realistic goal. Some of these innovations are already used in modern transplant centres and will allow advancement in long-term allograft preservation.
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Affiliation(s)
- Thomas Wekerle
- Department of Surgery, Section of Transplantation Immunology, Medical University of Vienna, Vienna, Austria
| | - Dorry Segev
- Department of Surgery, Johns Hopkins University, Baltimore, MD, USA
| | - Robert Lechler
- MRC Centre for Transplantation, King's College London, London, UK
| | - Rainer Oberbauer
- Department of Nephrology and Dialysis, Medical University of Vienna, Vienna, Austria.
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miRNA-Coordinated Networks as Promising Therapeutic Targets for Acute Kidney Injury. THE AMERICAN JOURNAL OF PATHOLOGY 2017; 187:20-24. [DOI: 10.1016/j.ajpath.2016.10.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 10/20/2016] [Indexed: 11/23/2022]
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