101
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Liu X, Zhang Y, Liang H, Xu Y. Overexpression of microRNA-216a-3p Accelerates the Inflammatory Response in Cardiomyocytes in Type 2 Diabetes Mellitus by Targeting IFN-α2. Front Endocrinol (Lausanne) 2020; 11:522340. [PMID: 33329376 PMCID: PMC7729074 DOI: 10.3389/fendo.2020.522340] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 09/03/2020] [Indexed: 11/22/2022] Open
Abstract
Background: Type 2 diabetes mellitus (T2DM) is a chronic, hyperglycemia-associated, metabolic disorder. Heart disease is a major complication of T2DM. The present study aimed to explore the effects of miR-216a-3p on cardiomyocyte proliferation, apoptosis, and inflammation in T2DM through the Toll-like receptor (TLR) pathway involving interferon-α2 (IFN-α2) mediation. Methods: T2DM was induced in rats by a high-fat diet, in combination with an intraperitoneal injection of low-dose streptozotocin. ELISAs were conducted to measure inflammatory-related factors in serum. Next, isolated cardiomyocytes were used in loss- and gain-of-function experiments, followed by MTT and flow cytometry assays, conducted to evaluate cell proliferation, cell cycle, and apoptosis. Results: Our results revealed an increase in the inflammatory response in T2DM rat models, accompanied by significantly increased expression of miR-216a-3p and TLR pathway-related genes. However, a decrease in the expression of IFN-α2 was observed. Moreover, the presence of an miR-216a-3p inhibitor and si-IFN-α2 increased the expression of TLR pathway-related genes and cell apoptosis, whereas cell proliferation was significantly decreased in the cardiomyocytes. Conclusion: We found that in T2DM, miR-216a-3p inhibited the proliferation and enhanced the apoptosis of cardiomyocytes and generated an inflammatory response through activation of the TLR pathway and targeting of IFN-α2.
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Affiliation(s)
- Xiaomeng Liu
- The 2nd Ward, Department of Endocrinology and Metabolism, Linyi People's Hospital, Linyi, China
| | - Yusong Zhang
- Imaging Center, Linyi People's Hospital, Linyi, China
| | - Hongwei Liang
- Department of Health Care, Linyi People's Hospital, Linyi, China
| | - Yanchao Xu
- The 2nd Ward, Department of Endocrinology and Metabolism, Linyi People's Hospital, Linyi, China
- *Correspondence: Yanchao Xu
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102
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Thibonnier M, Esau C. Metabolic Benefits of MicroRNA-22 Inhibition. Nucleic Acid Ther 2019; 30:104-116. [PMID: 31873061 DOI: 10.1089/nat.2019.0820] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Diabesity is a growing pandemic with substantial health and financial consequences. We are developing microRNA (miRNA)-based drug candidates that transform fat storing adipocytes into fat burning adipocytes (browning effect) to treat metabolic diseases characterized by lipotoxicity. Through phenotypic screening in primary cultures of human subcutaneous adipocytes, we discovered that inhibition of miRNA-22-3p by several complementary antagomirs resulted in increased lipid oxidation, mitochondrial activity, and energy expenditure (EE). These effects may be mediated through activation of target genes like KDM3A, KDM6B, PPARA, PPARGC1B, and SIRT1 involved in lipid catabolism, thermogenesis, and glucose homeostasis. In the model of Diet-Induced Obesity in mice of various ages, weekly subcutaneous injections of various miRNA-22-3p antagomirs produced a significant fat mass reduction, but no change of appetite or body temperature. Insulin sensitivity, as well as circulating glucose and cholesterol levels, was also improved. These original findings suggest that miRNA-22-3p inhibition could become a potent treatment of human obesity and type 2 diabetes mellitus, the so-called diabesity characterized by lipotoxicity and insulin resistance.
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103
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Biocatalytic Amplification of UV Signal in Capillary Electrophoresis of MicroRNA. Int J Mol Sci 2019; 21:ijms21010051. [PMID: 31861744 PMCID: PMC6981575 DOI: 10.3390/ijms21010051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/10/2019] [Accepted: 12/17/2019] [Indexed: 12/17/2022] Open
Abstract
MicroRNAs (miRNAs) are new potential biomarkers for early diagnosis and classification of cancer. This study is the first attempt to use biocatalytic amplification reactions combined with capillary electrophoresis to detect multiple miRNAs simultaneously. In this way, miRNAs, as catalysts, can catalyze two single strands of DNA to form double-strand DNA. Feasibility was demonstrated by non-gel capillary electrophoresis coupled with UV detection (NGCE-UV). The detection limit was improved down to 1.0 nM, having ca. 103-fold improvement. This method has a good linear range of between 3.0 nM and 300 nM, with R2 at 0.99, recovery at 88–115%, and peak area precision at 1–12.7%. Using three target miRNAs as a model can achieve the baseline separation and good selectivity. The proposed biocatalysis coupled with a capillary electrophoresis-based method is simple, rapid, multiplexed, and cost-effective, making it potentially applicable for simultaneous, large-scale screening for other nucleic acids biomarkers and related research.
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104
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Chen B, Li J, Chi D, Sahnoune I, Calin S, Girnita L, Calin GA. Non-Coding RNAs in IGF-1R Signaling Regulation: The Underlying Pathophysiological Link between Diabetes and Cancer. Cells 2019; 8:cells8121638. [PMID: 31847392 PMCID: PMC6953109 DOI: 10.3390/cells8121638] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/06/2019] [Accepted: 12/10/2019] [Indexed: 12/13/2022] Open
Abstract
The intricate molecular network shared between diabetes mellitus (DM) and cancer has been broadly understood. DM has been associated with several hormone-dependent malignancies, including breast, pancreatic, and colorectal cancer (CRC). Insulin resistance, hyperglycemia, and inflammation are the main pathophysiological mechanisms linking DM to cancer. Non-coding RNAs (ncRNAs), particularly microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), are widely appreciated as pervasive regulators of gene expression, governing the evolution of metabolic disorders, including DM and cancer. The ways ncRNAs affect the development of DM complicated with cancer have only started to be revealed in recent years. Insulin-like growth factor 1 receptor (IGF-1R) signaling is a master regulator of pathophysiological processes directing DM and cancer. In this review, we briefly summarize a number of well-known miRNAs and lncRNAs that regulate the IGF-1R in DM and cancer, respectively, and further discuss the potential underlying molecular pathogenesis of this disease association.
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Affiliation(s)
- Baoqing Chen
- Department of Radiation Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China;
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA;
- Correspondence: (B.C.); (G.A.C.)
| | - Junyan Li
- Department of Radiation Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China;
| | - Dongmei Chi
- Department of Anesthesiology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China;
| | - Iman Sahnoune
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA;
| | - Steliana Calin
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA;
| | - Leonard Girnita
- Department of Oncology-Pathology, Cellular and Molecular Tumor Pathology, Karolinska Institute, 17164 Stockholm, Sweden;
| | - George A. Calin
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA;
- Center for RNA Interference and Non-Coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA
- Correspondence: (B.C.); (G.A.C.)
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105
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Krishnan P, Syed F, Jiyun Kang N, G. Mirmira R, Evans-Molina C. Profiling of RNAs from Human Islet-Derived Exosomes in a Model of Type 1 Diabetes. Int J Mol Sci 2019; 20:ijms20235903. [PMID: 31775218 PMCID: PMC6928620 DOI: 10.3390/ijms20235903] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 11/18/2019] [Accepted: 11/21/2019] [Indexed: 12/30/2022] Open
Abstract
Type 1 diabetes (T1D) is characterized by the immune-mediated destruction of insulin-producing islet β cells. Biomarkers capable of identifying T1D risk and dissecting disease-related heterogeneity represent an unmet clinical need. Toward the goal of informing T1D biomarker strategies, we profiled coding and noncoding RNAs in human islet-derived exosomes and identified RNAs that were differentially expressed under proinflammatory cytokine stress conditions. Human pancreatic islets were obtained from cadaveric donors and treated with/without IL-1β and IFN-γ. Total RNA and small RNA sequencing were performed from islet-derived exosomes to identify mRNAs, long noncoding RNAs, and small noncoding RNAs. RNAs with a fold change ≥1.3 and a p-value <0.05 were considered as differentially expressed. mRNAs and miRNAs represented the most abundant long and small RNA species, respectively. Each of the RNA species showed altered expression patterns with cytokine treatment, and differentially expressed RNAs were predicted to be involved in insulin secretion, calcium signaling, necrosis, and apoptosis. Taken together, our data identify RNAs that are dysregulated under cytokine stress in human islet-derived exosomes, providing a comprehensive catalog of protein coding and noncoding RNAs that may serve as potential circulating biomarkers in T1D.
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Affiliation(s)
- Preethi Krishnan
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (F.S.); (N.J.K.); (R.G.M.)
| | - Farooq Syed
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (F.S.); (N.J.K.); (R.G.M.)
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Nicole Jiyun Kang
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (F.S.); (N.J.K.); (R.G.M.)
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Raghavendra G. Mirmira
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (F.S.); (N.J.K.); (R.G.M.)
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Carmella Evans-Molina
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (F.S.); (N.J.K.); (R.G.M.)
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Richard L. Roudebush VA Medical Center, Indianapolis, IN 46202, USA
- Indiana University School of Medicine, 635 Barnhill Drive, MS 2031A, Indianapolis, IN 46202, USA
- Correspondence: ; Tel.: +1-317-274-4145; Fax: +1-317-274-4107
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106
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Mori MA, Ludwig RG, Garcia-Martin R, Brandão BB, Kahn CR. Extracellular miRNAs: From Biomarkers to Mediators of Physiology and Disease. Cell Metab 2019; 30:656-673. [PMID: 31447320 PMCID: PMC6774861 DOI: 10.1016/j.cmet.2019.07.011] [Citation(s) in RCA: 489] [Impact Index Per Article: 97.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 05/25/2019] [Accepted: 07/24/2019] [Indexed: 02/07/2023]
Abstract
miRNAs can be found in serum and other body fluids and serve as biomarkers for disease. More importantly, secreted miRNAs, especially those in extracellular vesicles (EVs) such as exosomes, may mediate paracrine and endocrine communication between different tissues and thus modulate gene expression and the function of distal cells. When impaired, these processes can lead to tissue dysfunction, aging, and disease. Adipose tissue is an especially important contributor to the pool of circulating exosomal miRNAs. As a result, alterations in adipose tissue mass or function, which occur in many metabolic conditions, can lead to changes in circulating miRNAs, which then function systemically. Here we review the findings that led to these conclusions and discuss how this sets the stage for new lines of investigation in which extracellular miRNAs are recognized as important mediators of intercellular communication and potential candidates for therapy of disease.
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Affiliation(s)
- Marcelo A Mori
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, SP, Brazil.
| | - Raissa G Ludwig
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, SP, Brazil
| | - Ruben Garcia-Martin
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
| | - Bruna B Brandão
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
| | - C Ronald Kahn
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA.
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107
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Assmann TS, Milagro FI, Martínez JA. Crosstalk between microRNAs, the putative target genes and the lncRNA network in metabolic diseases. Mol Med Rep 2019; 20:3543-3554. [PMID: 31485667 PMCID: PMC6755190 DOI: 10.3892/mmr.2019.10595] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 04/18/2019] [Indexed: 02/07/2023] Open
Abstract
MicroRNAs (miRNAs/miRs) are small non-coding RNAs (ncRNAs) that regulate gene expression. Emerging knowledge has suggested that miRNAs have a role in the pathogenesis of metabolic disorders, supporting the hypothesis that miRNAs may represent potential biomarkers or targets for this set of diseases. However, the current evidence is often controversial. Therefore, the aim of the present study was to determine the associations between miRNAs-target genes, miRNA-long ncRNAs (lncRNAs), and miRNAs-small molecules in human metabolic diseases, including obesity, type 2 diabetes and non-alcoholic fatty liver disease. The metabolic disease-related miRNAs were obtained from the Human MicroRNA Disease Database (HMDD) and miR2Disease database. A search on the databases Matrix Decomposition and Heterogeneous Graph Inference (MDHGI) and DisGeNET were also performed. miRNAs target genes were obtained from three independent sources: Microcosm, TargetScan and miRTarBase. The interactions between miRNAs-lncRNA and miRNA-small molecules were performed using the miRNet web tool. The network analyses were performed using Cytoscape software. As a result, a total of 20 miRNAs were revealed to be associated with metabolic disorders in the present study. Notably, 6 miRNAs (miR-17-5p, miR-29c-3p, miR-34a-5p, miR-103a-3p, miR-107 and miR-132-3p) were found in the four resources (HMDD, miR2Disease, MDHGI, and DisGeNET) used for these analyses, presenting a stronger association with the diseases. Furthermore, the target genes of these miRNAs participate in several pathways previously associated with metabolic diseases. In addition, interactions between miRNA-lncRNA and miRNA-small molecules were also found, suggesting that some molecules can modulate gene expression via such an indirect way. Thus, the results of this data mining and integration analysis provide further information on the possible molecular basis of the metabolic disease pathogenesis as well as provide a path to search for potential biomarkers and therapeutic targets concerning metabolic diseases.
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Affiliation(s)
- Taís Silveira Assmann
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, 31008 Pamplona, Spain
| | - Fermín I Milagro
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, 31008 Pamplona, Spain
| | - José Alfredo Martínez
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, 31008 Pamplona, Spain
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108
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Oleanolic acid attenuated diabetic mesangial cell injury by activation of autophagy via miRNA-142-5p/PTEN signaling. Cytotechnology 2019; 71:925-933. [PMID: 31410746 DOI: 10.1007/s10616-019-00335-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 08/02/2019] [Indexed: 12/13/2022] Open
Abstract
Oleanolic acid (OA), a potential drug for diabetic nephropathy (DN) treatment was found to downregulate the expression of microRNA (miR). The research aimed to investigate the effect of OA on autophagy mediated through miR-142-5p targeted PTEN signal. NRK-52E cells were cultured under normal or high glucose condition. DN model were induced by intravenous injection with streptozotocin (55 mg/kg). Renal fibrosis mice were detected by hematoxylin and eosin (HE) staining, Masson staining and immunohistochemistry assay. TargetScan and dual-luciferase reporter assay system was used to detect the target of miR-142-5p. Expression levels of microRNA and proteins were analyzed by real-time PCR and western blotting. Autophagy was decreased in the progression of renal fibrosis in diabetic nephropathy mice (in vivo) and in high glucose-induced NRK-52E cells (rat kidney epithelial cells) (in vitro) as the expression ofLC-3I and LC-3II (indicators of autophagy) were decreased mice MiR-142-5p was unregulated and PTEN was down-regulated in kidney mice and high glucose-induced NRK-52E cells. Targetscan prediction revealed that PTEN was a target of miR-142-5p. OA restricted HG-induced NRK-52E cell fibrosis through inhibition of miR-142-5p to promote PTEN expression and autophagy levels. To sum up, the research indicated that OA promoted autophagy through inhibition of PI3K/AKT/mTOR pathway. OA alleviated diabetic renal fibrosis by increasing autophagy through regulation of miR-142-5p/PTEN via PI3K/AKT/mTOR pathway in NRK-52E cells.
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109
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Kim M, Zhang X. The Profiling and Role of miRNAs in Diabetes Mellitus. JOURNAL OF DIABETES AND CLINICAL RESEARCH 2019; 1:5-23. [PMID: 32432227 PMCID: PMC7236805 DOI: 10.33696/diabetes.1.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Diabetes mellitus (DM), a complex metabolic disease, has become a global threat to human health worldwide. Over the past decades, an enormous amount of effort has been devoted to understand how microRNAs (miRNAs), a class of small non-coding RNA regulators of gene expression at the post-transcriptional level, are implicated in DM pathology. Growing evidence suggests that the expression signature of a specific set of miRNAs has been altered in the progression of DM. In the present review, we summarize the recent investigations on the miRNA profiles as novel DM biomarkers in clinical studies and in animal models, and highlight recent discoveries on the complex regulatory effect and functional role of miRNAs in DM.
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Affiliation(s)
- Michael Kim
- Department of Medicine, Division of Cardiology, Columbia University Medical Center, New York, NY, USA
| | - Xiaokan Zhang
- Department of Medicine, Division of Cardiology, Columbia University Medical Center, New York, NY, USA
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110
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Nasykhova YA, Barbitoff YA, Serebryakova EA, Katserov DS, Glotov AS. Recent advances and perspectives in next generation sequencing application to the genetic research of type 2 diabetes. World J Diabetes 2019; 10:376-395. [PMID: 31363385 PMCID: PMC6656706 DOI: 10.4239/wjd.v10.i7.376] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 05/23/2019] [Accepted: 06/11/2019] [Indexed: 02/05/2023] Open
Abstract
Type 2 diabetes (T2D) mellitus is a common complex disease that currently affects more than 400 million people worldwide and has become a global health problem. High-throughput sequencing technologies such as whole-genome and whole-exome sequencing approaches have provided numerous new insights into the molecular bases of T2D. Recent advances in the application of sequencing technologies to T2D research include, but are not limited to: (1) Fine mapping of causal rare and common genetic variants; (2) Identification of confident gene-level associations; (3) Identification of novel candidate genes by specific scoring approaches; (4) Interrogation of disease-relevant genes and pathways by transcriptional profiling and epigenome mapping techniques; and (5) Investigation of microbial community alterations in patients with T2D. In this work we review these advances in application of next-generation sequencing methods for elucidation of T2D pathogenesis, as well as progress and challenges in implementation of this new knowledge about T2D genetics in diagnosis, prevention, and treatment of the disease.
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Affiliation(s)
- Yulia A Nasykhova
- Laboratory of Biobanking and Genomic Medicine of Institute of Translation Biomedicine, St. Petersburg State University, St. Petersburg 199034, Russia
- Department of Genomic Medicine, D.O. Ott Research Institute of Obstetrics, Gynaecology and Reproductology, St. Petersburg 199034, Russia
| | - Yury A Barbitoff
- Laboratory of Biobanking and Genomic Medicine of Institute of Translation Biomedicine, St. Petersburg State University, St. Petersburg 199034, Russia
- Bioinformatics Institute, St. Petersburg 194021, Russia
- Department of Genetics and Biotechnology, St. Petersburg State University, St. Petersburg 199034, Russia
| | - Elena A Serebryakova
- Department of Genomic Medicine, D.O. Ott Research Institute of Obstetrics, Gynaecology and Reproductology, St. Petersburg 199034, Russia
- Department of Genetics, City Hospital No. 40, St. Petersburg 197706, Russia
| | - Dmitry S Katserov
- Institute of Living Systems, Immanuel Kant Baltic Federal University, Kaliningrad 236016, Russia
| | - Andrey S Glotov
- Laboratory of Biobanking and Genomic Medicine of Institute of Translation Biomedicine, St. Petersburg State University, St. Petersburg 199034, Russia
- Department of Genomic Medicine, D.O. Ott Research Institute of Obstetrics, Gynaecology and Reproductology, St. Petersburg 199034, Russia
- Department of Genetics, City Hospital No. 40, St. Petersburg 197706, Russia
- Institute of Living Systems, Immanuel Kant Baltic Federal University, Kaliningrad 236016, Russia
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111
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Lareyre F, Clément M, Moratal C, Loyer X, Jean-Baptiste E, Hassen-Khodja R, Chinetti G, Mallat Z, Raffort J. Differential micro-RNA expression in diabetic patients with abdominal aortic aneurysm. Biochimie 2019; 162:1-7. [DOI: 10.1016/j.biochi.2019.03.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 03/18/2019] [Indexed: 12/29/2022]
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112
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Mononen N, Lyytikäinen LP, Seppälä I, Mishra PP, Juonala M, Waldenberger M, Klopp N, Illig T, Leiviskä J, Loo BM, Laaksonen R, Oksala N, Kähönen M, Hutri-Kähönen N, Raitakari O, Lehtimäki T, Raitoharju E. Whole blood microRNA levels associate with glycemic status and correlate with target mRNAs in pathways important to type 2 diabetes. Sci Rep 2019; 9:8887. [PMID: 31222113 PMCID: PMC6586838 DOI: 10.1038/s41598-019-43793-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 04/29/2019] [Indexed: 12/25/2022] Open
Abstract
We analyzed the associations between whole blood microRNA profiles and the indices of glucose metabolism and impaired fasting glucose and examined whether the discovered microRNAs correlate with the expression of their mRNA targets. MicroRNA and gene expression profiling were performed for the Young Finns Study participants (n = 871). Glucose, insulin, and glycated hemoglobin (HbA1c) levels were measured, the insulin resistance index (HOMA2-IR) was calculated, and the glycemic status (normoglycemic [n = 534]/impaired fasting glucose [IFG] [n = 252]/type 2 diabetes [T2D] [n = 24]) determined. Levels of hsa-miR-144-5p, -122-5p, -148a-3p, -589-5p, and hsa-let-7a-5p associated with glycemic status. hsa-miR-144-5p and -148a-3p associated with glucose levels, while hsa-miR-144-5p, -122-5p, -184, and -339-3p associated with insulin levels and HOMA2-IR, and hsa-miR-148a-3p, -15b-3p, -93-3p, -146b-5p, -221-3p, -18a-3p, -642a-5p, and -181-2-3p associated with HbA1c levels. The targets of hsa-miR-146b-5p that correlated with its levels were enriched in inflammatory pathways, and the targets of hsa-miR-221-3p were enriched in insulin signaling and T2D pathways. These pathways showed indications of co-regulation by HbA1c-associated miRNAs. There were significant differences in the microRNA profiles associated with glucose, insulin, or HOMA-IR compared to those associated with HbA1c. The HbA1c-associated miRNAs also correlated with the expression of target mRNAs in pathways important to the development of T2D.
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Affiliation(s)
- Nina Mononen
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and the Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Leo-Pekka Lyytikäinen
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and the Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Ilkka Seppälä
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and the Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Pashupati P Mishra
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and the Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Markus Juonala
- Division of Medicine, Turku University Hospital, and Department of Medicine, University of Turku, Turku, Finland
| | - Melanie Waldenberger
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum, German Research Center for Environmental Health, Munich, Germany
| | - Norman Klopp
- Hannover Unified Biobank, Hannover Medical School, Hannover, Germany.,Institute for Human Genetics, Hannover Medical School, Hanover, Germany
| | - Thomas Illig
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum, German Research Center for Environmental Health, Munich, Germany.,Hannover Unified Biobank, Hannover Medical School, Hannover, Germany.,Institute for Human Genetics, Hannover Medical School, Hanover, Germany
| | - Jaana Leiviskä
- Department of Clinical Chemistry, University of Helsinki and Helsinki University Hospital HUSLAB, Helsinki, Finland
| | - Britt-Marie Loo
- Joint Clinical Biochemistry Laboratory of the University of Turku and Turku University Central Hospital and Department of Chronic Disease Prevention, National Institute for Health and Welfare, Turku, Finland
| | - Reijo Laaksonen
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and the Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Niku Oksala
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and the Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Centre for Vascular Surgery and Interventional Radiology, Tampere University Hospital, Tampere, Finland
| | - Mika Kähönen
- Department of Clinical Physiology, Tampere University Hospital, and Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Nina Hutri-Kähönen
- Department of Pediatrics, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Olli Raitakari
- Research Centre for Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland.,Department of Clinical Physiology and Nuclear Medicine and Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland
| | - Terho Lehtimäki
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and the Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Emma Raitoharju
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and the Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
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Chen X, Wei R, Jin T, Du H. RETRACTED ARTICLE: Notoginsenoside R1 alleviates TNF-α-induced pancreatic β-cell Min6 apoptosis and dysfunction through up-regulation of miR-29a. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:2379-2388. [PMID: 31184222 DOI: 10.1080/21691401.2019.1624368] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Xiabo Chen
- Department of Endocrinology, Ningbo Municipal Hospital of Traditional Chinese Medicine, Ningbo, China
| | - Renxiong Wei
- Department of Clinical Laboratory, Ningbo Municipal Hospital of Traditional Chinese Medicine, Ningbo China
| | - Tinglong Jin
- Department of Endocrinology, Ningbo Municipal Hospital of Traditional Chinese Medicine, Ningbo, China
| | - Hanguang Du
- Department of Endocrinology, Ningbo Municipal Hospital of Traditional Chinese Medicine, Ningbo, China
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Meerson A, Najjar A, Saad E, Sbeit W, Barhoum M, Assy N. Sex Differences in Plasma MicroRNA Biomarkers of Early and Complicated Diabetes Mellitus in Israeli Arab and Jewish Patients. Noncoding RNA 2019; 5:E32. [PMID: 30959814 PMCID: PMC6631160 DOI: 10.3390/ncrna5020032] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/29/2019] [Accepted: 04/04/2019] [Indexed: 12/15/2022] Open
Abstract
MicroRNAs play functional roles in the etiology of type 2 diabetes mellitus (T2DM) and complications, and extracellular microRNAs have attracted interest as potential biomarkers of these conditions. We aimed to identify a set of plasma microRNAs, which could serve as biomarkers of T2DM and complications in a mixed Israeli Arab/Jewish patient sample. Subjects included 30 healthy volunteers, 29 early-stage T2DM patients, and 29 late-stage T2DM patients with renal and/or vascular complications. RNA was isolated from plasma, and the levels of 12 candidate microRNAs were measured by quantitative reverse transcription and polymerase chain reaction (qRT-PCR). MicroRNA levels were compared between the groups and correlated to clinical measurements, followed by stepwise regression analysis and discriminant analysis. Plasma miR-486-3p and miR-423 were respectively up- and down-regulated in T2DM patients compared to healthy controls. MiR-28-3p and miR-423 were up-regulated in patients with complicated T2DM compared to early T2DM, while miR-486-3p was down-regulated. Combined, four microRNAs (miR-146a-5p, miR-16-2-3p, miR-126-5p, and miR-30d) could distinguish early from complicated T2DM with 77% accuracy and 79% sensitivity. In male patients only, the same microRNAs, with the addition of miR-423, could distinguish early from complicated T2DM with 83.3% accuracy. Furthermore, plasma microRNA levels showed significant correlations with clinical measurements, and these differed between men and women. Additionally, miR-183-5p levels differed significantly between the ethnic groups. Our study identified a panel of specific plasma microRNAs which can serve as biomarkers of T2DM and its complications and emphasizes the importance of sex differences in their clinical application.
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Affiliation(s)
- Ari Meerson
- MIGAL Galilee Research Institute, Kiryat Shmona 1101602, Israel.
- Tel Hai Academic College, Upper Galilee 1220800, Israel.
| | - Azwar Najjar
- Department of Internal Medicine A, Galilee Medical Center, Nahariya, Israel.
| | - Elias Saad
- Department of Internal Medicine A, Galilee Medical Center, Nahariya, Israel.
| | - Wisam Sbeit
- Department of Gastroenterology, Galilee Medical Center, Nahariya, Israel.
| | | | - Nimer Assy
- Department of Internal Medicine A, Galilee Medical Center, Nahariya, Israel.
- The Azrieli Faculty of Medicine, Bar Ilan University, Safed, Israel.
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115
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Duan J, Qian XL, Li J, Xiao XH, Lu XT, Lv LC, Huang QY, Ding W, Zhang HY, Xiong LX. miR-29a Negatively Affects Glucose-Stimulated Insulin Secretion and MIN6 Cell Proliferation via Cdc42/ β-Catenin Signaling. Int J Endocrinol 2019; 2019:5219782. [PMID: 31662747 PMCID: PMC6735210 DOI: 10.1155/2019/5219782] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 06/13/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Diabetes is a progressive metabolic disease characterized by hyperglycemia. Functional impairment of islet β cells can occur to varying degrees. This impairment can initially be compensated for by proliferation and metabolic changes of β cells. Cell division control protein 42 (Cdc42) and the microRNA (miRNA) miR-29 have important roles in β-cell proliferation and glucose-stimulated insulin secretion (GSIS), which we further explored using the mouse insulinoma cell line MIN6. METHODS Upregulation and downregulation of miR-29a and Cdc42 were accomplished using transient transfection. miR-29a and Cdc42 expression was detected by real-time PCR and western blotting. MIN6 proliferation was detected using a cell counting kit assay. GSIS under high-glucose (20.0 mM) or basal-glucose (5.0 mM) stimulation was detected by enzyme-linked immunosorbent assay. The miR-29a binding site in the Cdc42 mRNA 3'-untranslated region (UTR) was determined using bioinformatics and luciferase reporter assays. RESULTS miR-29a overexpression inhibited proliferation (P < 0.01) and GSIS under high-glucose stimulation (P < 0.01). Cdc42 overexpression promoted proliferation (P < 0.05) and GSIS under high-glucose stimulation (P < 0.05). miR-29a overexpression decreased Cdc42 expression (P < 0.01), whereas miR-29a downregulation increased Cdc42 expression (P < 0.01). The results showed that the Cdc42 mRNA 3'-UTR is a direct target of miR-29a in vitro. Additionally, Cdc42 reversed miR-29a-mediated inhibition of proliferation and GSIS (P < 0.01). Furthermore, miR-29a inhibited β-catenin expression (P < 0.01), whereas Cdc42 promoted β-catenin expression (P < 0.01). CONCLUSION By negatively regulating Cdc42 and the downstream molecule β-catenin, miR-29a inhibits MIN6 proliferation and insulin secretion.
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Affiliation(s)
- Jing Duan
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang 330006, China
| | - Xian-Ling Qian
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang 330006, China
| | - Jun Li
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang 330006, China
| | - Xing-Hua Xiao
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang 330006, China
| | - Xiang-Tong Lu
- Department of Pathology, Second Affiliated Hospital, Nanchang University, No. 1 Mingde Road, Nanchang 330006, China
| | - Lin-Chen Lv
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang 330006, China
| | - Qing-Yun Huang
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang 330006, China
| | - Wen Ding
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang 330006, China
| | - Hong-Yan Zhang
- Department of Burn, The First Affiliated Hospital, Nanchang University, 17 Yongwaizheng Road, Nanschang 330066, China
| | - Li-Xia Xiong
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang 330006, China
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Suksangrat T, Phannasil P, Jitrapakdee S. miRNA Regulation of Glucose and Lipid Metabolism in Relation to Diabetes and Non-alcoholic Fatty Liver Disease. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1134:129-148. [DOI: 10.1007/978-3-030-12668-1_7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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117
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Demirsoy İH, Ertural DY, Balci Ş, Çınkır Ü, Sezer K, Tamer L, Aras N. Profiles of Circulating MiRNAs Following Metformin Treatment in Patients with Type 2 Diabetes. J Med Biochem 2018; 37:499-506. [PMID: 30584410 PMCID: PMC6298473 DOI: 10.2478/jomb-2018-0009] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 03/17/2018] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Metformin, a widely used biguanide class of anti-diabetic drug, has potential to increase insulin sensitivity and reduce blood glucose to treat type 2 diabetes (T2D). It has been reported that metformin has an activity on regulation of miRNAs by targeting several downstream genes in metabolic pathways. However, molecular mechanism underlying the process is still not fully known. In this study, it was aimed to identify differential expression profiles of plasma derived miRNAs following 3 months metformin treatment in patients with T2D. METHODS The plasma samples of 47 patients with T2D (received no anti-diabetic treatments) and plasma samples of same 47 patients received 3 months metformin treatment was recruited to the study. Total RNAs were isolated from plasma and reverse transcribed into cDNA. Profiles of differential expressions of miRNAs in plasma were assessed by using of micro-fluidic based multiplex quantitative real time -PCR (BioMarkTM 96.96 Dynamic Array). RESULTS Our results showed that expression profiles of 13 candidate miRNAs; hsa-let-7e-5p, hsa-let-7f-5p, hsa-miR- 21-5p, hsa-miR-24-3p, hsa-miR-26b-5p, hsa-miR-126-5p, hsa-miR-129-5p, hsa-miR-130b-3p, hsa-miR-146a-5p, hsamiR- 148a-3p, hsa-miR-152-3p, hsa-miR-194-5p, hsa-miR- 99a-5p were found significantly downregulated following metformin treatments in patients with T2D (p<0.05). CONCLUSIONS In conclusion, our finding could provide development of better and more effective miRNAs based therapeutic strategies against T2D.
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Affiliation(s)
| | | | - Şenay Balci
- Department of Medical Biochemistry, Mersin University, Mersin, Turkey
| | - Ümit Çınkır
- Department of Endocrinology and Metabolism, Mersin University, Mersin, Turkey
| | - Kerem Sezer
- Department of Endocrinology and Metabolism, Mersin University, Mersin, Turkey
| | - Lülüfer Tamer
- Department of Medical Biochemistry, Mersin University, Mersin, Turkey
| | - Nurcan Aras
- Department of Medical Biology, Mersin University, Mersin, Turkey
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118
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Ding X, Jian T, Wu Y, Zuo Y, Li J, Lv H, Ma L, Ren B, Zhao L, Li W, Chen J. Ellagic acid ameliorates oxidative stress and insulin resistance in high glucose-treated HepG2 cells via miR-223/keap1-Nrf2 pathway. Biomed Pharmacother 2018; 110:85-94. [PMID: 30466006 DOI: 10.1016/j.biopha.2018.11.018] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 10/30/2018] [Accepted: 11/06/2018] [Indexed: 12/27/2022] Open
Abstract
As a promising new target, miR-233 may regulate oxidative stress by targeting keap1-Nrf2 system to affect the pathological process of liver injury in T2DM. Ellagic acid (EA) is versatile for protecting oxidative stress damage and metabolic disorders. In the present study, we investigated the effect of EA on oxidative stress and insulin resistance in high glucose-induced T2DM HepG2 cells and examined the role of miR-223/keap1-Nrf2 pathway in system. HepG2 cells were incubated in 30 mM of glucose, with or without EA (15 and 30 μM) or metformin (Met, 150 μM) for 12 h. Glucose consumption, phosphorylation of IRS1, Akt and ERK under insulin stimulation, ROS and O2- production, MDA level, SOD activity and miR-223 expression, as well as protein levels of keap1, Nrf2, HO-1, SOD1 and SOD2 were analyzed. Furthermore, dual luciferase reporter assay, miR-223 mimic and inhibitor were implemented in cellular studies to explore the possible mechanism. EA upregulated glucose consumption, IRS1, Akt and ERK phosphorylation under insulin stimulation, reduced ROS and O2- production and MDA level, and increased SOD activity in high glucose-exposed HepG2 cells. In addition, EA elevated miR-223 expression level, downregulated mRNA and protein levels of keap1, and upregulated Nrf2, HO-1, SOD1 and SOD2 protein levels in this cell model. What's more, dual luciferase reporter assay, miR-223 mimic and inhibitor transfection confirmed that EA activated keap1-Nrf2 system via elevating miR-223. The miR-223, a negative regulator of keap1, represents an attractive therapeutic target in hepatic injury in T2DM. EA ameliorates oxidative stress and insulin resistance via miR-223-mediated keap1-Nrf2 activation in high glucose-induced T2DM HepG2 cells.
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Affiliation(s)
- Xiaoqin Ding
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Tunyu Jian
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Yuexian Wu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Yuanyuan Zuo
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Jiawei Li
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Han Lv
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Li Ma
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Bingru Ren
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Lei Zhao
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Weilin Li
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; Nanjing Forestry University, Nanjing 210037, China.
| | - Jian Chen
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China.
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119
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A meta-analysis of dysregulated miRNAs in coronary heart disease. Life Sci 2018; 215:170-181. [PMID: 30423308 DOI: 10.1016/j.lfs.2018.11.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/24/2018] [Accepted: 11/07/2018] [Indexed: 12/14/2022]
Abstract
AIMS To combine the results of dysregulated miRNAs in individual coronary heart disease (CHD) studies and to identify potential miRNA biomarkers. MAIN METHODS MiRNA profiling studies of CHD were extracted from Pubmed, Embase, Web of Science and China National Knowledge Internet (CNKI) databases if they met the inclusion criteria. The meta-analysis was conducted using a random effects model to identify the effect of each multiple-reported miRNA. We also performed subgroup analysis according to miRNA detecting methods, tissues and subtypes of CHD. Sensitivity analysis was performed on the sample size. Bioinformatic analysis was performed to identify the potential biomatic functions. All results were represented as log10 odds ratios (logORs). KEY FINDINGS A total of 239 miRNAs were reported to be dysregulated in all 25 studies analyzed herein, and meta-analysis identified 48 statistically significant miRNAs. Bioinformatic analysis showed they were closely related with CHD. The most reported up-regulated miRNA was miR-122-5p (logOR: 2.7924, P < 0.001). A total of 7, 6, 4 and 9 miRNAs were detected to be differentially expressed in myocardial infarction (MI), unstable angia (UA), stable angina (SA) and pre-CHD subjects, respectively. 32 miRNAs were dysregulated in blood sample. The dysregulation of miR-133a-3p in whole blood and plasma/serum was contrary. In sensitivity analysis, 37 out of 48 (77.08%) miRNAs were consistently dysregulated. SIGNIFICANCE A total of 48 dysregulated miRNAs were confirmed in this meta-analysis. MiR-122-5p and miR-133a-3p may be valuable biomarkers for CHD.
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120
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Xu L, Li Y, Yin L, Qi Y, Sun H, Sun P, Xu M, Tang Z, Peng J. miR-125a-5p ameliorates hepatic glycolipid metabolism disorder in type 2 diabetes mellitus through targeting of STAT3. Am J Cancer Res 2018; 8:5593-5609. [PMID: 30555566 PMCID: PMC6276304 DOI: 10.7150/thno.27425] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 10/12/2018] [Indexed: 02/07/2023] Open
Abstract
Glycolipid metabolic disorder is an important cause for the development of type 2 diabetes mellitus (T2DM). Clarification of the molecular mechanism of metabolic disorder and exploration of drug targets are crucial for the treatment of T2DM. Methods: We examined miR-125a-5p levels in palmitic acid-induced AML12 cells and the livers of type 2 diabetic rats and mice, and then validated its target gene. Through gain- and loss-of-function studies, the effects of miR-125a-5p via targeting of STAT3 on regulating glycolipid metabolism were further illustrated in vitro and in vivo. Results: We found that miR-125a-5p was significantly decreased in the livers of diabetic mice and rats, and STAT3 was identified as the target gene of miR-125a-5p. Overexpression of miR-125a-5p in C57BL/6 mice decreased STAT3 level and downregulated the expression levels of p-STAT3 and SOCS3. Consequently, SREBP-1c-mediated lipogenesis pathway was inhibited, and PI3K/AKT pathway was activated. Moreover, silencing of miR-125a-5p significantly increased the expression levels of STAT3, p-STAT3 and SOCS3, thus activating SREBP-1c pathway and suppressing PI3K/AKT pathway. Therefore, hyperglycemia, hyperlipidemia and decreased liver glycogen appeared in C57BL/6 mice. In palmitic acid-induced AML12 cells, miR-125a-5p mimic markedly increased glucose consumption and uptake and decreased the accumulation of lipid droplets by regulating STAT3 signaling pathway. Consistently, miR-125a-5p overexpression obviously inhibited STAT3 expression in diabetic KK-Ay mice, thereby decreasing blood glucose and lipid levels, increasing hepatic glycogen content, and decreasing accumulation of hepatic lipid droplets in diabetic mice. Furthermore, inhibition of miR-125a-5p in KK-Ay mice aggravated glycolipid metabolism dysfunction through regulating STAT3. Conclusions: Our results confirmed that miR-125a-5p should be considered as a regulator of glycolipid metabolism in T2DM, which can inhibit hepatic lipogenesis and gluconeogenesis and elevate glycogen synthesis by targeting STAT3.
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MiR-323b-5p acts as a novel diagnostic biomarker for critical limb ischemia in type 2 diabetic patients. Sci Rep 2018; 8:15080. [PMID: 30305681 PMCID: PMC6179988 DOI: 10.1038/s41598-018-33310-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 09/26/2018] [Indexed: 12/12/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a major contributor to peripheral artery disease (PAD), especially in cases that advance to critical limb ischemia (CLI). Accumulating evidence indicates that miRNAs play an important role in the development of PAD and T2DM. Due to the limited value of current diagnostic methods for CLI in T2DM patients, we compared the miRNA expression profiles of Chinese T2DM patients with or without CLI to find out whether distinctive miRNAs could serve as potential diagnostic biomarkers. We statistically identified 7 miRNAs (hsa-miR-200b-3p, hsa-miR-2115-3p, hsa-miR-431-5p, hsa-miR-486-5p, hsa-miR-210-3p, hsa-miR-1264, hsa-miR-323b-5p) which were up-regulated in the CLI group, whereas other 4 miRNAs (hsa-miR-5579-3p, hsa-miR-665, hsa-miR-4285, hsa-miR-500a-3p) were down-regulated. Our validation test suggested a relatively high diagnostic accuracy of serum hsa-miR-323b-5p levels for the detection of CLI in T2DM patients, with a sensitivity of 62.67% and a specificity of 80.65%. The area under the curve (AUC) for miR-323b-5p + confounding risk factors was 0.94 (95% CI: 0.884-0.994, P < 0.001), which was higher than that for miR-323b-5p. Taken together, our results indicate that circulating hsa-miR-323b-5p could be a promising serum biomarker for the diagnosis of critical limb ischemia in type 2 diabetic patients.
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122
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Is miRNA-375 a promising biomarker for early detection and monitoring of patients with type 2 diabetes? ACTA ACUST UNITED AC 2018; 3:e119-e122. [PMID: 30775601 PMCID: PMC6374562 DOI: 10.5114/amsad.2018.78775] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Accepted: 08/02/2018] [Indexed: 12/21/2022]
Abstract
miRNAs are small, non-coding RNAs, functioning as negative suppressors of target gene expression. A significant proportion of the transcriptome is subject to miRNA modulation. A single miRNA determines the expression of hundreds of genes, while miRNAs are relatively stable in biological fluids. Thus, they have attracted scientific interest regarding their use as biomarkers for several diseases. miRNA-375 mainly influences β-cell function and insulin secretion. Several studies, primarily experimental, have assessed its role as a biomarker in type 2 diabetes, while recently obtained human evidence supports this potential role. Besides its diagnostic potential, miRNA-375 may also have therapeutic implications. In view of the growing epidemic of type 2 diabetes, there is an unmet need for identification of biomarkers for early recognition and monitoring of these patients. Long-term, prospective human studies are required to elucidate whether miRNA-375 can evolve as a key player in diagnosis and prognosis of type 2 diabetes.
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123
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Pre-transplant expressions of microRNAs, comorbidities, and post-transplant mortality. Bone Marrow Transplant 2018; 54:973-979. [PMID: 30279573 PMCID: PMC6445788 DOI: 10.1038/s41409-018-0352-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 08/29/2018] [Accepted: 09/12/2018] [Indexed: 11/16/2022]
Abstract
We analyzed micro-RNAs (miRs) as possible diagnostic biomarkers for relevant comorbidities prior to and prognostic biomarkers for mortality following hematopoietic cell transplantation (HCT). A randomly selected group of patients (n=36) were divided into low-risk (HCT-comorbidity index [HCT-CI] score of 0 and survived HCT) and high-risk (HCT-CI scores ≥4 and deceased after HCT) groups. There were 654 miRs tested and 19 met the pre-specified significance level of p<0.1. In subsequent models, only eight miRs maintained statistical significance in regression models after adjusting for baseline demographic factors; miRs-374b and −454 were under-expressed, while miRs-142–3p, −191, −424, −590–3p, −29c, and −15b were over-expressed among high-risk patients relative to low-risk patients. Areas under the curve for these 8 miRs ranged between 0.74 to 0.81, suggesting strong predictive capacity. Consideration of miRs may improve risk-assessment of mortality and should be further explored in larger future prospective studies.
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La Sala L, Micheloni S, De Nigris V, Prattichizzo F, Ceriello A. Novel insights into the regulation of miRNA transcriptional control: implications for T2D and related complications. Acta Diabetol 2018; 55:989-998. [PMID: 29732466 DOI: 10.1007/s00592-018-1149-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 04/21/2018] [Indexed: 12/19/2022]
Abstract
In recent years, epigenetics has emerged as an important form of biological regulation involving chromatin control of gene expression. The mechanisms of this fine-tuned regulation are susceptible to changes forced by environmental stimuli and nutritional factors and may be potentially reversible. Dysregulation of epigenetic processes has important consequences for the pathogenesis of complex and multifactorial diseases such as type 2 diabetes (T2D) and vascular complications. Along with DNA methylation (DNA-me), histone modifications and RNA-based mechanisms as the major epigenetic controllers, small non-coding RNAs known as microRNAs (miRNAs) have their own important implications for the pathogenesis of diabetes. There is increasing evidence supporting the role of miRNAs in modulating gene expression, cumulatively contributing to epigenetic gene silencing by acting either on the methylation status of the cells or in alternative roles. Although significant progress has been made in the characterization of miRNA functions, most miRNA promoters have not yet been characterized, and the transcriptional regulation of miRNAs remains elusive. The present work is centred on the new biological insights pertaining to the epigenetics-miRNA regulatory axis, focusing on the development of T2D and cardiovascular complications, and the ability of these mechanisms to interact in a network of DNA-me regulation. The genomic organization of inter- and intragenic miRNA genes is discussed, and the mutual connections between pre-mRNA splicing and miRNA biogenesis are summarized, along with the discovery of novel miRNA transcriptional regulation sites.
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Affiliation(s)
- Lucia La Sala
- Department of Cardiovascular and Dysmetabolic Diseases, IRCCS MultiMedica, Via Fantoli 16/15, 20138, Milan, MI, Italy.
| | - Stefano Micheloni
- Department of Cardiovascular and Dysmetabolic Diseases, IRCCS MultiMedica, Via Fantoli 16/15, 20138, Milan, MI, Italy
| | - Valeria De Nigris
- Institut d'Investigación Biomédiques August Pi i Sunyer (IDIBAPS) and Centro de Investigación Biomedica en Red de Diabetes y Enfermedades Metabolicas Asociadas (CIBERDEM), Hospital Clinic, Barcelona, Spain
| | - Francesco Prattichizzo
- Department of Cardiovascular and Dysmetabolic Diseases, IRCCS MultiMedica, Via Fantoli 16/15, 20138, Milan, MI, Italy
| | - Antonio Ceriello
- Department of Cardiovascular and Dysmetabolic Diseases, IRCCS MultiMedica, Via Fantoli 16/15, 20138, Milan, MI, Italy
- Institut d'Investigación Biomédiques August Pi i Sunyer (IDIBAPS) and Centro de Investigación Biomedica en Red de Diabetes y Enfermedades Metabolicas Asociadas (CIBERDEM), Hospital Clinic, Barcelona, Spain
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Jaeger A, Zollinger L, Saely CH, Muendlein A, Evangelakos I, Nasias D, Charizopoulou N, Schofield JD, Othman A, Soran H, Kardassis D, Drexel H, Eckardstein AV. Circulating microRNAs -192 and -194 are associated with the presence and incidence of diabetes mellitus. Sci Rep 2018; 8:14274. [PMID: 30250222 PMCID: PMC6155281 DOI: 10.1038/s41598-018-32274-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 08/31/2018] [Indexed: 01/19/2023] Open
Abstract
We sought to identify circulating microRNAs as biomarkers of prevalent or incident diabetes. In a pilot study of 18 sex- and age-matched patients with metabolic syndrome, nine of whom developed diabetes during 6 years of follow-up, an array of 372 microRNAs discovered significantly elevated serum levels of microRNAs -122, -192, -194, and -215 in patients who developed diabetes mellitus type 2 (T2DM). In two cross-sectional validation studies, one encompassing sex- and age-matched groups of patients with T2DM, impaired fasting glucose (IFG) and euglycemic controls (n = 43 each) and the other 53 patients with type 1 diabetes and 54 age- and BMI-matched euglycemic controls, serum levels of miR-192, miR-194, and mi215 were significantly higher in diabetic subjects than in probands with euglycemia or IFG. In a longitudinal study of 213 initially diabetes-free patients of whom 35 developed diabetes during 6 years of follow-up, elevated serum levels of microRNAs 192 and 194 were associated with incident T2DM, independently of fasting glucose, HbA1c and other risk factors. Serum levels of miR-192 and miR-194 were also elevated in diabetic Akt2 knockout mice compared to wild type mice. In conclusion, circulating microRNAs -192 and -194 are potential biomarkers for risk of diabetes.
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Affiliation(s)
- Andrea Jaeger
- Institute for Clinical Chemistry, University Hospital Zurich, Zurich, Switzerland
- Centre for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Lukas Zollinger
- Institute for Clinical Chemistry, University Hospital Zurich, Zurich, Switzerland
- Centre for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Christoph H Saely
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
- Department of Medicine and Cardiology, Academic Teaching Hospital Feldkirch, Feldkirch, Austria
- Private University of the Principality of Liechtenstein, Triesen, Liechtenstein
| | - Axel Muendlein
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
- Department of Medicine and Cardiology, Academic Teaching Hospital Feldkirch, Feldkirch, Austria
- Private University of the Principality of Liechtenstein, Triesen, Liechtenstein
| | - Ioannis Evangelakos
- University of Crete Medical School and Institute of Molecular Biology and Biotechnology-FORTH, Heraklion, Greece
| | - Dimitris Nasias
- University of Crete Medical School and Institute of Molecular Biology and Biotechnology-FORTH, Heraklion, Greece
| | - Nikoleta Charizopoulou
- University of Crete Medical School and Institute of Molecular Biology and Biotechnology-FORTH, Heraklion, Greece
| | - Jonathan D Schofield
- Cardiovascular Trials Unit, The Old St Mary's Hospital, Central Manchester University Hospitals, Manchester, United Kingdom
- Division of Cardiovascular Sciences, Cardiovascular Research Group, School of Medical Sciences, University of Manchester, Manchester, United Kingdom
| | - Alaa Othman
- Institute for Clinical Chemistry, University Hospital Zurich, Zurich, Switzerland
- Centre for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Handrean Soran
- Cardiovascular Trials Unit, The Old St Mary's Hospital, Central Manchester University Hospitals, Manchester, United Kingdom
- Division of Cardiovascular Sciences, Cardiovascular Research Group, School of Medical Sciences, University of Manchester, Manchester, United Kingdom
| | - Dimitris Kardassis
- University of Crete Medical School and Institute of Molecular Biology and Biotechnology-FORTH, Heraklion, Greece
| | - Heinz Drexel
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
- Department of Medicine and Cardiology, Academic Teaching Hospital Feldkirch, Feldkirch, Austria
- Private University of the Principality of Liechtenstein, Triesen, Liechtenstein
- Drexel University College of Medicine, Philadelphia, PA, USA
| | - Arnold von Eckardstein
- Institute for Clinical Chemistry, University Hospital Zurich, Zurich, Switzerland.
- Centre for Integrative Human Physiology, University of Zurich, Zurich, Switzerland.
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126
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Wang H, Wang Z, Tang Q. Reduced expression of microRNA-199a-3p is associated with vascular endothelial cell injury induced by type 2 diabetes mellitus. Exp Ther Med 2018; 16:3639-3645. [PMID: 30233719 DOI: 10.3892/etm.2018.6655] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 05/18/2018] [Indexed: 02/06/2023] Open
Abstract
The aim of the present study was to investigate the function and mechanism of action of microRNA (miRNA or miR)-199a-3p in vascular endothelial cell injury induced by type 2 diabetes mellitus (T2DM). A total of 36 patients with T2DM (26 males and 10 females; mean age, 52.5±7.0 years) and 20 healthy subjects (10 males and 10 females; mean age, 55.6±4.5 years) were included in the present study. Peripheral blood samples were obtained from all participants and total RNA was extracted Reverse transcription-quantitative polymerase chain reaction was performed to determine the expression of miR-199a-3p. Following the transfection of human umbilical vein endothelial cells (HUVECs) with a negative control (NC) miRNA or miR-199a-3p mimics, cell proliferation was assessed using a Cell Counting kit-8 assay. Cell migration was investigated using Transwell assays and flow cytometry was performed to detect the apoptosis of HUVECs. HUVECs were infected with Ad-GFP-LC3B and laser-scanning confocal microscopy was performed to observe autophagosomes in HUVECs. Western blotting was used to measure the expression of proteins associated with autophagy and the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT)/nuclear factor (NF)-κB signaling pathway. MiR-199a-3p was downregulated in peripheral blood from patients with T2DM compared with healthy subjects. Transfection with miR-199a-3p mimics promoted the proliferation and migration of HUVECs. However, miR-199a-3p overexpression inhibited the apoptosis of HUVECs. MiR-199a-3p facilitated HUVEC autophagy by affecting autophagy-associated signaling pathways. Furthermore, miR-199a-3p regulated the biological functions of HUVECs via the PI3K/AKT/NF-κB signaling pathway. The results of the present study suggest that miR-199a-3p expression was reduced in patients with T2DM compared with healthy subjects and may be associated with vascular endothelial cell injury. In addition, miR-199a-3p promoted the proliferation, migration and autophagy of HUVECs, potentially by regulating the PI3K/AKT/NF-κB signaling pathway. Therefore, miR-199a-3p may function as protector of vascular endothelia.
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Affiliation(s)
- Hui Wang
- Department of Endocrinology, Affiliated Hospital of Taishan Medical University, Taian, Shandong 271000, P.R. China
| | - Zhengxia Wang
- Clinical Skills Center, Affiliated Hospital of Taishan Medical University, Taian, Shandong 271000, P.R. China
| | - Qingbin Tang
- Emergency Medicine Department, Affiliated Hospital of Taishan Medical University, Taian, Shandong 271000, P.R. China
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127
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Henriksen TI, Heywood SE, Hansen NS, Pedersen BK, Scheele CC, Nielsen S. Single Cell Analysis Identifies the miRNA Expression Profile of a Subpopulation of Muscle Precursor Cells Unique to Humans With Type 2 Diabetes. Front Physiol 2018; 9:883. [PMID: 30050458 PMCID: PMC6050405 DOI: 10.3389/fphys.2018.00883] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 06/19/2018] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRNAs) take part in regulating central cellular processes such as differentiation and metabolism. We have previously shown that muscle progenitor cells derived from individuals with type 2 diabetes (T2DM) have a dysregulated miRNA profile. We hypothesized that the T2DM muscle progenitor population is heterogeneous in its miRNA expression and differs from the progenitor population of healthy controls. MiRNA expression profiles of CD56+ muscle progenitor cells from people with T2DM and from healthy controls were therefore investigated at a single cell level. Single-cell analysis revealed three subpopulations expressing distinct miRNA profiles: two subpopulations including both T2DM and healthy control muscle precursors presented miRNA expression profiles mostly overlapping between groups. A distinct third subpopulation consisted solely of cells from donors with T2DM and showed enriched expression of miRNAs previously shown to be associated with type 2 diabetes. Among the enriched miRNAs was miR-29, a regulator of GLUT4 mRNA expression. Interestingly, this subpopulation also revealed several miRNAs with predicted targets in the PI3K/Akt pathway, not previously described in relation to T2DM muscle dysfunction. We concluded that a subpopulation of T2DM muscle precursor cells is severely dysregulated in terms of their miRNA expression, and accumulation of this population might thus contribute to the dysfunctional muscular phenotype in type 2 diabetes.
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Affiliation(s)
- Tora I Henriksen
- Centre for Inflammation and Metabolism and the Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sarah E Heywood
- Centre for Inflammation and Metabolism and the Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Ninna S Hansen
- Centre for Inflammation and Metabolism and the Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Bente K Pedersen
- Centre for Inflammation and Metabolism and the Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Camilla C Scheele
- Centre for Inflammation and Metabolism and the Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Søren Nielsen
- Centre for Inflammation and Metabolism and the Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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128
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Matsha TE, Kengne AP, Hector S, Mbu DL, Yako YY, Erasmus RT. MicroRNA profiling and their pathways in South African individuals with prediabetes and newly diagnosed type 2 diabetes mellitus. Oncotarget 2018; 9:30485-30498. [PMID: 30093963 PMCID: PMC6078144 DOI: 10.18632/oncotarget.25271] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 04/06/2018] [Indexed: 02/06/2023] Open
Abstract
Early identification of individuals with elevated risk of developing diabetes mellitus, followed by the implementation of effective prevention interventions can delay the onset of the disease and related complications. In this regard, recent studies have shown that miRNAs are useful as early markers of certain disease types, including diabetes. We used high throughput sequencing to assess miRNA expression profiles from whole blood of 12 individuals with screen-detected diabetes, 12 with prediabetes and 12 with normal glucose tolerance, matched for age, blood pressure, smoking and body mass index. We identified a total of 261 (57 novel) differentially expressed miRNA profiles between the study groups. Comparison of the miRNA expression profiles between prediabetess and diabetes revealed 25 common miRNA, but highlighted some interesting differences. For instance, three miRNAs (miR-126-3p, miR-28-3p miR-486-5p) were dysregulated in prediabetes compared to screen-detected diabetes. Target gene analysis showed thousands of potential genes and KEGG pathway analysis revealed 107 significant pathways of which some are involved signal transduction, cell-cell communications, cell growth and death, immune response, endocrine system and metabolic diseases. This first detailed African study has shown both known and novel differentially expressed miRNAs in relation to glucose tolerance.
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Affiliation(s)
- Tandi E Matsha
- Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Andre P Kengne
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa.,Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Stanton Hector
- Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Desiree L Mbu
- Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Yandiswa Y Yako
- Department of Human Biology, Faculty of Health Sciences, Walter Sisulu University, Mthatha, South Africa
| | - Rajiv T Erasmus
- Department of Pathology, Faculty of Health Sciences, National Health Laboratory Service (NHLS) and University of Stellenbosch, Cape Town, South Africa
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129
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Yuan X, Berg N, Lee JW, Le TT, Neudecker V, Jing N, Eltzschig H. MicroRNA miR-223 as regulator of innate immunity. J Leukoc Biol 2018; 104:515-524. [PMID: 29969525 DOI: 10.1002/jlb.3mr0218-079r] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 05/29/2018] [Accepted: 06/04/2018] [Indexed: 12/17/2022] Open
Abstract
MicroRNAs were discovered more than 2 decades ago and have profound impact on diverse biological processes. Specific microRNAs have important roles in modulating the innate immune response and their dysregulation has been demonstrated to contribute to inflammatory diseases. MiR-223 in particular, is very highly expressed and tightly regulated in hematopoietic cells. It functions as key modulator for the differentiation and activation of myeloid cells. The central role of miR-223 in myeloid cells, especially neutrophil and macrophage differentiation and activation has been studied extensively. MiR-223 contributes to myeloid differentiation by enhancing granulopoiesis while inhibiting macrophage differentiation. Uncontrolled myeloid activation has detrimental consequences in inflammatory disease. MiR-223 serves as a negative feedback mechanism controlling excessive innate immune responses in the maintenance of myeloid cell homeostasis. This review summarizes several topics covering the function of miR-223 in myeloid differentiation, neutrophil and macrophage functions, as well as in inflammatory diseases including acute respiratory distress syndrome and inflammatory bowel disease. In addition, nonmyeloid functions of miR-223 are also discussed in this review. Therapeutic enhancement of miR-223 to dampen inflammatory targets is also highlighted as potential treatment to control excessive innate immune responses during mucosal inflammation.
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Affiliation(s)
- Xiaoyi Yuan
- Department of Anesthesiology, University of Texas Health Science Center at Houston, McGovern Medical School, Houston, Texas, USA
| | - Nathaniel Berg
- Department of Anesthesiology, University of Texas Health Science Center at Houston, McGovern Medical School, Houston, Texas, USA
| | - Jae Woong Lee
- Department of Anesthesiology, University of Texas Health Science Center at Houston, McGovern Medical School, Houston, Texas, USA
| | - Thanh-Thuy Le
- Department of Anesthesiology, University of Texas Health Science Center at Houston, McGovern Medical School, Houston, Texas, USA
| | - Viola Neudecker
- Department of Anesthesiology, College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Na Jing
- Department of Anesthesiology, University of Texas Health Science Center at Houston, McGovern Medical School, Houston, Texas, USA.,Department of Anesthesiology, First Affiliated Hospital, China Medical University, Liaoning, P.R. China
| | - Holger Eltzschig
- Department of Anesthesiology, University of Texas Health Science Center at Houston, McGovern Medical School, Houston, Texas, USA
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130
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Das A, Samidurai A, Salloum FN. Deciphering Non-coding RNAs in Cardiovascular Health and Disease. Front Cardiovasc Med 2018; 5:73. [PMID: 30013975 PMCID: PMC6036139 DOI: 10.3389/fcvm.2018.00073] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 05/29/2018] [Indexed: 12/16/2022] Open
Abstract
After being long considered as “junk” in the human genome, non-coding RNAs (ncRNAs) currently represent one of the newest frontiers in cardiovascular disease (CVD) since they have emerged in recent years as potential therapeutic targets. Different types of ncRNAs exist, including small ncRNAs that have fewer than 200 nucleotides, which are mostly known as microRNAs (miRNAs), and long ncRNAs that have more than 200 nucleotides. Recent discoveries on the role of ncRNAs in epigenetic and transcriptional regulation, atherosclerosis, myocardial ischemia/reperfusion (I/R) injury and infarction (MI), adverse cardiac remodeling and hypertrophy, insulin resistance, and diabetic cardiomyopathy prompted vast interest in exploring candidate ncRNAs for utilization as potential therapeutic targets and/or diagnostic/prognostic biomarkers in CVDs. This review will discuss our current knowledge concerning the roles of different types of ncRNAs in cardiovascular health and disease and provide some insight on the cardioprotective signaling pathways elicited by the non-coding genome. We will highlight important basic and clinical breakthroughs that support employing ncRNAs for treatment or early diagnosis of a variety of CVDs, and also depict the most relevant limitations that challenge this novel therapeutic approach.
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Affiliation(s)
- Anindita Das
- Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Arun Samidurai
- Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Fadi N Salloum
- Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, United States
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131
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Assmann TS, Recamonde-Mendoza M, Puñales M, Tschiedel B, Canani LH, Crispim D. MicroRNA expression profile in plasma from type 1 diabetic patients: Case-control study and bioinformatic analysis. Diabetes Res Clin Pract 2018; 141:35-46. [PMID: 29679626 DOI: 10.1016/j.diabres.2018.03.044] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/09/2018] [Accepted: 03/26/2018] [Indexed: 12/23/2022]
Abstract
AIMS To investigate a miRNA expression profile in plasma of type 1 diabetes (T1DM) patients and control subjects and analyze the putative pathways involved. METHODS Expressions of 48 miRNAs were analyzed in plasma of 33 T1DM patients and 26 age-and-gender-matched controls using Stem-loop RT-PreAmp PCR and TaqMan Low Density Arrays (Thermo Fisher Scientific). Five dysregulated miRNAs were then chosen for validation in an independent sample of 27 T1DM patients and 14 controls, using RT-qPCR. Bioinformatic analyses were performed to determine in which pathways these miRNAs are involved. RESULTS Nine miRNAs were differentially expressed between recently-diagnosed T1DM patients (<5 years of diagnosis) and controls. No differences were observed between patients with ≥5 years of diagnosis and controls. After validation in an independent sample of T1DM patients, miR-103a-3p, miR-155-5p, miR-200a-3p, and miR-210-3p were confirmed as being upregulated in recently-diagnosed T1DM patients compared with controls or patients with ≥5 years of diagnosis. Moreover, miR-146a-5p was downregulated in recently-diagnosed T1DM patients compared with the other groups. These five miRNAs regulate several genes from innate immune system-, MAPK-, apoptosis-, insulin- and cancer-related pathways. CONCLUSION Five miRNAs are dysregulated in recently-diagnosed T1DM patients and target several genes involved in pathways related to T1DM pathogenesis, thus representing potential T1DM biomarkers.
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Affiliation(s)
- Taís S Assmann
- Endocrine Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil; Postgraduation Program in Medical Sciences: Endocrinology, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Mariana Recamonde-Mendoza
- Institute of Informatics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; Bioinformatics Core, Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Márcia Puñales
- Instituto da Criança com Diabetes, Hospital Nossa Senhora da Conceição, Porto Alegre, Rio Grande do Sul, Brazil
| | - Balduíno Tschiedel
- Instituto da Criança com Diabetes, Hospital Nossa Senhora da Conceição, Porto Alegre, Rio Grande do Sul, Brazil
| | - Luís H Canani
- Endocrine Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil; Postgraduation Program in Medical Sciences: Endocrinology, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Daisy Crispim
- Endocrine Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil; Postgraduation Program in Medical Sciences: Endocrinology, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
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132
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Fardi M, Solali S, Farshdousti Hagh M. Epigenetic mechanisms as a new approach in cancer treatment: An updated review. Genes Dis 2018; 5:304-311. [PMID: 30591931 PMCID: PMC6303480 DOI: 10.1016/j.gendis.2018.06.003] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 06/12/2018] [Indexed: 12/13/2022] Open
Abstract
Epigenetic, along with genetic mechanisms, is essential for natural evolution and maintenance of specific patterns of gene expression in mammalians. Global epigenetic variation is inherited somatically and unlike genetic variation, it is dynamic and reversible. They are somatically associated with known genetic variations. Recent studies indicate the broad role of epigenetic mechanisms in the initiation and development of cancers, that they are including DNA methylation, histone modifications, nucleosomes changes, non-coding RNAs. The reversible nature of epigenetic changes has led to the emergence of novel epigenetic therapeutic approaches, so that several types of these medications have been approved by the FDA so far. In this review, we discuss the concept of epigenetic changes in diseases, especially cancers, the role of these changes in the onset and progression of cancers and the potential of using this knowledge in designing novel therapeutic strategies.
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Affiliation(s)
- Masoumeh Fardi
- Immunology Research Center, Tabriz University of Medical Science, Tabriz, Iran.,Department of Immunology, Division of Hematology and Blood Transfusion Medicine, Tabriz University of Medical Science, Tabriz, Iran
| | - Saeed Solali
- Molecular Medicine Research Center, Tabriz University of Medical Science, Tabriz, Iran.,Hematology and Oncology Research Center, Tabriz University of Medical Science, Tabriz, Iran
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133
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Dos Santos Nunes MK, Silva AS, Wanderley de Queiroga Evangelista I, Modesto Filho J, Alves Pegado Gomes CN, Ferreira do Nascimento RA, Pordeus Luna RC, de Carvalho Costa MJ, Paulo de Oliveira NF, Camati Persuhn D. Analysis of the DNA methylation profiles of miR-9-3, miR-34a, and miR-137 promoters in patients with diabetic retinopathy and nephropathy. J Diabetes Complications 2018; 32:593-601. [PMID: 29674133 DOI: 10.1016/j.jdiacomp.2018.03.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 02/28/2018] [Accepted: 03/25/2018] [Indexed: 12/15/2022]
Affiliation(s)
| | | | | | - João Modesto Filho
- Department of Internal Medicine, Federal University of Paraiba, Joao Pessoa, Brazil
| | | | | | | | - Maria José de Carvalho Costa
- Nutrition Science Department and Post-graduate Program in Nutrition Science, Federal University of Paraiba, Joao Pessoa, Brazil
| | | | - Darlene Camati Persuhn
- Department of Molecular Biology and Post-Graduation Program in Nutrition Science, Federal University of Paraiba, Joao Pessoa, Brazil.
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134
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Zhang L, Chen ZW, Yang SF, Shaer M, Wang Y, Dong JJ, Jiapaer B. MicroRNA-219 decreases hippocampal long-term potentiation inhibition and hippocampal neuronal cell apoptosis in type 2 diabetes mellitus mice by suppressing the NMDAR signaling pathway. CNS Neurosci Ther 2018; 25:69-77. [PMID: 29804319 DOI: 10.1111/cns.12981] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 04/28/2018] [Accepted: 04/30/2018] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Type 2 diabetes mellitus (T2DM) is a complex polygenic disease that causes hyperglycemia and accounts for 90%-95% of all diabetes mellitus cases. Hence, this study aimed to examine the effects of microRNA-219 (miR-219) on inhibition of long-term potentiation (LTP) and apoptosis of hippocampal neuronal cells in T2DM mice through the N-methyl-d-aspartate receptor (NMDAR) signaling pathway regulation. METHODS The T2DM mouse models were established, after which LTP in vivo was recorded by means of electrical biology, and the fasting blood glucose of mice was measured. Next, the density of pyramidal neurons in each group was calculated. Additionally, the expression levels of miR-219, the NMDAR signaling pathway [NMDAR1 (NR) 1, NR2A, and NR2B), downstream target proteins [calmodulin-dependent protein kinase-II (CaMK-II) and cAMP response element binding protein (CREB)], and apoptosis-related factors [Bcl2-associated X protein (Bax), c-caspase-9 and c-caspase-3] in the hippocampal tissues were determined. Finally, immunohistochemistry was applied to detect and measure the positive expression of Bax, caspase-9, and caspase-3 proteins. RESULTS The results showed that upregulation of miR-219 increases LTP and density of pyramidal neurons in the hippocampal tissues of mice, while it decreases blood glucose of db/db mice. In addition, miR-219 upregulation also leads to decreased mRNA levels of NR1, NR2A, NR2B, CaMK-II, and CREB and protein levels of NR1, NR2A, NR2B, CaMK-II, CREB, p-CREB, Bax, c-caspase-9, and c-caspase-3. Furthermore, upregulation of miR-219 inhibits positive expression of Bax, caspase-9, and caspase-3 proteins, leading to the suppression of hippocampal neuronal cell apoptosis. CONCLUSION The findings from this study indicated that the upregulation of miR-219 decreases LTP inhibition and hippocampal neuronal cell apoptosis in T2DM mice by downregulating the NMDAR signaling pathway, therefore suggesting that MiR-219 might be a future therapeutic strategy for T2DM.
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Affiliation(s)
- Ling Zhang
- Department of Cadre Health Care, the Xinjiang Uygur Autonomous Region People's Hospital, Urumchi, China
| | - Zheng-Wen Chen
- Department of Anesthesiology, the Second Affiliated Hospital of Xinjiang Medical University, Urumchi, China
| | - Shu-Fen Yang
- Department of Nephrology, the Xinjiang Uygur Autonomous Region People's Hospital, Urumchi, China
| | - Muyasi Shaer
- Department of Cadre Health Care, the Xinjiang Uygur Autonomous Region People's Hospital, Urumchi, China
| | - Ying Wang
- Department of Cadre Health Care, the Xinjiang Uygur Autonomous Region People's Hospital, Urumchi, China
| | - Jun-Jie Dong
- Department of Cadre Health Care, the Xinjiang Uygur Autonomous Region People's Hospital, Urumchi, China
| | - Beili Jiapaer
- Department of Cadre Health Care, the Xinjiang Uygur Autonomous Region People's Hospital, Urumchi, China
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135
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Alipoor B, Ghaedi H, Meshkani R, Omrani MD, Sharifi Z, Golmohammadi T. The rs2910164 variant is associated with reduced miR-146a expression but not cytokine levels in patients with type 2 diabetes. J Endocrinol Invest 2018; 41:557-566. [PMID: 29058209 DOI: 10.1007/s40618-017-0766-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 09/27/2017] [Indexed: 02/07/2023]
Abstract
PURPOSE Previous reports have demonstrated that genetic variations in microRNAs regulome could affect microRNAs-mediated regulation. Therefore, in the present study we were aimed at (1) comparison of microRNA 146-a (miR-146a) peripheral blood mononuclear cells (PBMCs) and plasma levels between diabetic patients and controls, and (2) investigating the possible association of rs2910164 with miR-146a and its related target genes expression and also serum cytokine levels. METHODS The study population consisted of 60 subjects including 30 type 2 diabetes (T2D) patients and 30 controls with determined genotypes for rs2910164. The RNA expression levels were determined by real-time PCR. Moreover, TNF-α, IL-6, IL-10 and IL-1β serum levels were measured using ELISA method. RESULTS Our results showed that the miR-146a expression levels were significantly decreased in PBMCs (P = 0.004) and plasma (P = 0.008) samples of patients with T2D compared to healthy participants. In addition, we observed that IRAK1 mRNA expression-but not TLR4, TRAF6 and NFĸB-was significantly increased in patients with T2D compared to controls (P = 0.028). The relative expression levels of miR-146a in plasma and PBMCs samples of diabetic patients with the rs2910164 GG genotypes were significantly higher than that in CC (P < 0.05). Moreover, no significant differences were found in miR-146a targets and cytokine levels between the rs2910164 different genotypes. CONCLUSION Our study demonstrated that miR-146a circulating levels were significantly elevated in controls compared with T2D patients. In addition, we identified that rs2910164-C allele is associated with reduced expression levels of the miR-146a but not its mRNAs targets and cytokine levels in diabetic patients.
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Affiliation(s)
- B Alipoor
- Department of Laboratory Sciences, Faculty of Paramedicine, Yasuj University of Medical Sciences, Yasuj, Iran
- Department of Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - H Ghaedi
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - R Meshkani
- Department of Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - M D Omrani
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Z Sharifi
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - T Golmohammadi
- Department of Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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136
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Vaishya S, Sarwade RD, Seshadri V. MicroRNA, Proteins, and Metabolites as Novel Biomarkers for Prediabetes, Diabetes, and Related Complications. Front Endocrinol (Lausanne) 2018; 9:180. [PMID: 29740397 PMCID: PMC5925339 DOI: 10.3389/fendo.2018.00180] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 04/04/2018] [Indexed: 12/13/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is no more a lifestyle disease of developed countries. It has emerged as a major health problem worldwide including developing countries. However, how diabetes could be detected at an early stage (prediabetes) to prevent the progression of disease is still unclear. Currently used biomarkers like glycated hemoglobin and assessment of blood glucose level have their own limitations. These classical markers can be detected when the disease is already established. Prognosis of disease at early stages and prediction of population at a higher risk require identification of specific markers that are sensitive enough to be detected at early stages of disease. Biomarkers which could predict the risk of disease in people will be useful for developing preventive/proactive therapies to those individuals who are at a higher risk of developing the disease. Recent studies suggested that the expression of biomolecules including microRNAs, proteins, and metabolites specifically change during the progression of T2DM and related complications, suggestive of disease pathology. Owing to their omnipresence in body fluids and their association with onset, progression, and pathogenesis of T2DM, these biomolecules can be potential biomarker for prognosis, diagnosis, and management of disease. In this article, we summarize biomolecules that could be potential biomarkers and their signature changes associated with T2DM and related complications during disease pathogenesis.
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Affiliation(s)
| | - Rucha D. Sarwade
- Department of Biotechnology, Savitribai Phule Pune University, Pune, India
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137
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Wu P, Wang Q, Jiang C, Chen C, Liu Y, Chen Y, Zeng Y. MicroRNA‑29a is involved lipid metabolism dysfunction and insulin resistance in C2C12 myotubes by targeting PPARδ. Mol Med Rep 2018; 17:8493-8501. [PMID: 29693165 DOI: 10.3892/mmr.2018.8902] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 03/08/2018] [Indexed: 11/05/2022] Open
Abstract
MicroRNA‑29a (miR‑29a) expression has been reported to be closely associated with skeletal muscle insulin resistance and type 2 diabetes. The present study investigated the effect of miR‑29a on palmitic acid (PA)‑induced lipid metabolism dysfunction and insulin resistance in C2C12 myotubes via overexpressing or silencing of miR‑29a expression. Mouse C2C12 myoblasts were cultured, differentiated and transfected with miR‑29a or miR‑29a inhibitor lentiviral with or without subsequent palmitic acid (PA) treatment. Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) and western blot analysis were performed to assess the mRNA and protein levels of related genes, respectively. PA treatment increased the expression of miR‑29a in a time‑ and dose‑ dependent manner. miR‑29a silencing improved insulin‑induced glucose uptake and increased glucose transporter‑4 (GLUT4) transportation to the plasma membrane by upregulating its target peroxisome proliferator‑activated receptor δ (PPARδ). Furthermore, it was observed that miR‑29a regulated the expression of genes associated with lipid metabolism, including pyruvate dehydrogenase kinase isoform, mitochondrial uncoupling protein (UCP)2, UCP3, long chain specific acyl‑CoA dehydrogenase, mitochondrial and fatty acid transport protein 2. The results confirmed that silencing miR‑29a induced a decrease in glucose transport and affected lipid metabolism in PA‑treated C2C12 cells, and therefore may be involved in insulin resistance by targeting PPARδ in skeletal muscle. Therefore, the inhibition of miR‑29a may be a potential novel strategy for treating insulin resistance and type 2 diabetes.
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Affiliation(s)
- Peng Wu
- Clinical Medical College, Jiangsu Health Vocational College, Nanjing, Jiangsu 211800, P.R. China
| | - Qianyi Wang
- High School Affiliated to Nanjing Normal University, Nanjing, Jiangsu 210003, P.R. China
| | - Cuilian Jiang
- Department of Clinical Laboratory, Nanjing Maternity and Child Health Care Hospital, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Chen Chen
- Department of Clinical Laboratory, Nanjing Maternity and Child Health Care Hospital, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yun Liu
- Department of Clinical Laboratory, Nanjing Maternity and Child Health Care Hospital, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yajun Chen
- Department of Clinical Laboratory, Nanjing Maternity and Child Health Care Hospital, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yu Zeng
- Department of Clinical Laboratory, Nanjing Maternity and Child Health Care Hospital, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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138
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Jia L, Chopp M, Wang L, Lu X, Zhang Y, Szalad A, Zhang ZG. MiR-34a Regulates Axonal Growth of Dorsal Root Ganglia Neurons by Targeting FOXP2 and VAT1 in Postnatal and Adult Mouse. Mol Neurobiol 2018; 55:9089-9099. [PMID: 29637443 DOI: 10.1007/s12035-018-1047-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 03/27/2018] [Indexed: 12/30/2022]
Abstract
Hyperglycemia impairs nerve fibers of dorsal root ganglia (DRG) neurons, leading to diabetic peripheral neuropathy (DPN). However, the molecular mechanisms underlying DPN are not fully understood. Using a mouse model of type II diabetes (db/db mouse), we found that microRNA-34a (miR-34a) was over-expressed in DRG, sciatic nerve, and foot pad tissues of db/db mice. In vitro, high glucose significantly upregulated miR-34a in postnatal and adult DRG neurons, which was associated with inhibition of axonal growth. Overexpression and attenuation of miR-34a in postnatal and adult DRG neurons suppressed and promoted, respectively, axonal growth. Bioinformatic analysis suggested that miR-34a putatively targets forkhead box protein P2 (FOXP2) and vesicle amine transport 1 (VAT1), which were decreased in diabetic tissues and in cultured DRG neurons under high glucose conditions. Dual-luciferase assay showed that miR-34a downregulated FOXP2 and VAT1 expression by targeting their 3' UTR. Gain-of- and loss-of-function analysis showed an inverse relation between augmentation of miR-34a and reduction of FOXP2 and VAT1 proteins in postnatal and adult DRG neurons. Knockdown of FOXP2 and VAT1 reduced axonal growth. Together, these findings suggest that miR-34a and its target genes of FOXP2 and VAT1 are involved in DRG neuron damage under hyperglycemia.
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Affiliation(s)
- Longfei Jia
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, MI, 48202, USA.,Department of Neurolgoy, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, MI, 48202, USA.,Department of Physics Oakland University, Rochester, MI, 48309, USA
| | - Lei Wang
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, MI, 48202, USA
| | - Xuerong Lu
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, MI, 48202, USA
| | - Yi Zhang
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, MI, 48202, USA
| | - Alexandra Szalad
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, MI, 48202, USA
| | - Zheng Gang Zhang
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, MI, 48202, USA.
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139
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Evaluation of Two-Diabetes Related microRNAs Suitability as Earlier Blood Biomarkers for Detecting Prediabetes and type 2 Diabetes Mellitus. J Clin Med 2018; 7:jcm7020012. [PMID: 29373500 PMCID: PMC5852428 DOI: 10.3390/jcm7020012] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 01/17/2018] [Accepted: 01/23/2018] [Indexed: 12/12/2022] Open
Abstract
Increased the incidence of prediabetes and type 2 diabetes (T2D) worldwide raises an urgent need to develop effective tools for early disease detection to facilitate future preventive interventions and improve patient’s care. We evaluated the suitability of diabetes-related miR-375 and miR-9 as earlier biomarkers for detecting prediabetes and T2D.TaqMan-based RT-qPCR was used to quantify the expression of miRNAs in peripheral blood of 30 prediabetes patients, 30 T2D patients and 30 non-diabetic healthy controls. Compared to controls, miR-375 and miR-9 were expressed at higher levels in prediabetes patients and progressively more enriched in T2D patients. Both miRNAs were directly associated with the presence of prediabetes and T2D independently of known risk factors to T2D and miR-375 was independently associated with the development of T2D. Both miRNAs were positively correlated with the glycemic status and other T2D risk factors. The ROC analysis indicated good diagnostic abilities for miR-375 to distinguish overall patients from control and prediabetes from T2D patients. Whereas, miR-9 showed lower values and borderline significance in discriminating the subject groups. The combination of miRNAs enhanced the predictability to discriminate patients from control. These results suggest that miR-375 and miR-9 are associated with the susceptibility to developing T2D and miR-375 alone or in combination with miR-9 could serve as biomarkers for early detection of prediabetes and T2D.
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140
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Liang YZ, Dong J, Zhang J, Wang S, He Y, Yan YX. Identification of Neuroendocrine Stress Response-Related Circulating MicroRNAs as Biomarkers for Type 2 Diabetes Mellitus and Insulin Resistance. Front Endocrinol (Lausanne) 2018; 9:132. [PMID: 29643835 PMCID: PMC5882838 DOI: 10.3389/fendo.2018.00132] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 03/13/2018] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Chronic stress plays an important role in the development of type 2 diabetes mellitus (T2DM) and insulin resistance (IR). MicroRNAs (miRNAs) play key roles in mediating stress responses by regulating the expression of target genes. This study systematically screened and identified the neuroendocrine stress response-related circulating miRNAs which are associated with T2DM and IR. METHODS Based on the differential plasma expression profiles between individuals with and without T2DM, stress-related miRNAs were selected from those differently expressed miRNAs whose targets are involved in known neuroendocrine pathway of stress response. Candidate miRNAs were further validated by quantitative real-time polymerase chain reaction in a large sample, including 112 T2DM patients, 72 individuals with impaired fasting glucose (IFG), and 94 healthy controls. The association between miRNA expression and potential risk of T2DM and IFG was assessed by multivariate logistic regression models. The miRNA predictors of IR were identified by stepwise multiple regression analysis. The diagnostic performance for T2DM was evaluated by area under the curve (AUC) of receiver operating characteristic (ROC). RESULTS let-7b, let-7i, miR-142, miR-144, miR-155, and miR-29a were selected as candidate miRNAs for validation. Increased expression of let-7b, miR-144, and miR-29a and decreased expression of miR-142 were significant independent predictors of T2DM, IFG, and IR (P < 0.0125). These miRNAs significantly correlated with stress hormone levels (P < 0.0125). A three-miRNA panel, including let-7b, miR-142, and miR-144 had a high accuracy for diagnosing T2DM (AUC = 0.871, 95% CI: 0.822-0.919). CONCLUSION let-7b, miR-142, miR-144, and miR-29a in plasma may be important markers of neuroendocrine stress response and may play a role in the pathogenesis of T2DM and IR.
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Affiliation(s)
- Ying-Zhi Liang
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing, China
- Municipal Key Laboratory of Clinical Epidemiology, Beijing, China
| | - Jing Dong
- Health Medical Examination Center, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jie Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing, China
- Municipal Key Laboratory of Clinical Epidemiology, Beijing, China
| | - Shuo Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing, China
- Municipal Key Laboratory of Clinical Epidemiology, Beijing, China
| | - Yan He
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing, China
- Municipal Key Laboratory of Clinical Epidemiology, Beijing, China
| | - Yu-Xiang Yan
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing, China
- Municipal Key Laboratory of Clinical Epidemiology, Beijing, China
- *Correspondence: Yu-Xiang Yan,
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Berry C, Lal M, Binukumar BK. Crosstalk Between the Unfolded Protein Response, MicroRNAs, and Insulin Signaling Pathways: In Search of Biomarkers for the Diagnosis and Treatment of Type 2 Diabetes. Front Endocrinol (Lausanne) 2018; 9:210. [PMID: 29770126 PMCID: PMC5940743 DOI: 10.3389/fendo.2018.00210] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Accepted: 04/16/2018] [Indexed: 12/14/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a metabolic disorder that is characterized by functional defects in glucose metabolism and insulin secretion. Its complex etiology and multifaceted nature have made it difficult to design effective therapies for early diagnosis and treatment. Several lines of evidence indicate that aberrant activation of the unfolded protein response (UPR) in response to endoplasmic reticulum (ER) stress impairs the β cell's ability to respond to glucose and promotes apoptosis. Elucidating the molecular mechanisms that govern β cell dysfunction and cell death can help investigators design therapies to halt or prevent the development of T2DM. Early diagnosis of T2DM, however, warrants additionally the identification of potential biomarkers. MicroRNAs (miRNAs) are key regulators of transcriptional processes that modulate various features of insulin signaling, such as insulin sensitivity, glucose tolerance, and insulin secretion. A deeper understanding of how changes in patterns of expression of miRNAs correlate with altered glucose metabolism can enable investigators to develop methods for the early diagnosis and treatment of T2DM. The first part of this review examines how altered expression of specific UPR pathway proteins disrupts ER function and causes β cell dysfunction, while the second part discusses the potential role of miRNAs in the diagnostic and treatment of T2DM.
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Affiliation(s)
- Chinar Berry
- CSIR-Institute of Genomics and Integrative Biology, Delhi, India
| | - Megha Lal
- CSIR-Institute of Genomics and Integrative Biology, Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Delhi, India
| | - B. K. Binukumar
- CSIR-Institute of Genomics and Integrative Biology, Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Delhi, India
- *Correspondence: B. K. Binukumar, ,
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Catanzaro G, Besharat ZM, Chiacchiarini M, Abballe L, Sabato C, Vacca A, Borgiani P, Dotta F, Tesauro M, Po A, Ferretti E. Circulating MicroRNAs in Elderly Type 2 Diabetic Patients. Int J Endocrinol 2018; 2018:6872635. [PMID: 29849622 PMCID: PMC5914089 DOI: 10.1155/2018/6872635] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 01/25/2018] [Accepted: 02/18/2018] [Indexed: 02/07/2023] Open
Abstract
The circulating microRNAs (miRNAs) associated with type 2 diabetes (T2D) in elderly patients are still being defined. To identify novel miRNA biomarker candidates for monitoring responses to sitagliptin in such patients, we prospectively studied 40 T2D patients (age > 65) with HbA1c levels of 7.5-9.0% on metformin. After collection of baseline blood samples (t0), the dipeptidyl peptidase-IV (DPP-IV) inhibitor (DPP-IVi) sitagliptin was added to the metformin regimen, and patients were followed for 15 months. Patients with HbA1c < 7.5% or HbA1c reduction > 0.5% after 3 and 15 months of therapy were classified as "responders" (group R, n = 34); all others were classified as "nonresponders" (group NR, n = 6). Circulating miRNA profiling was performed on plasma collected in each group before and after 15 months of therapy (t0 and t15). Intra- and intergroup comparison of miRNA profiles pinpointed three miRNAs that correlated with responses to sitagliptin: miR-378, which is a candidate biomarker of resistance to this DPP-IVi, and miR-126-3p and miR-223, which are associated with positive responses to the drug. The translational implications are as immediate as evident, with the possibility to develop noninvasive diagnostic tools to predict drug response and development of chronic complications.
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Affiliation(s)
| | | | | | - Luana Abballe
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Claudia Sabato
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Alessandra Vacca
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Paola Borgiani
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | | | - Manfredi Tesauro
- Hypertension and Nephrology Unit, Department of Systems Medicine, Tor Vergata University, Rome, Italy
| | - Agnese Po
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Elisabetta Ferretti
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
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Abstract
Meta-analysis statistically assesses the results (e.g., effect sizes) across independent studies that are conducted in accordance with similar protocols and objectives. Current genomic meta-analysis studies do not perform extensive re-analysis on raw data because full data access would not be commonplace, although the best practice of open research for sharing well-formed data have been actively advocated. This chapter describes a simple and easy-to-follow method for conducting meta-analysis of multiple studies without using raw data. Examples for meta-analysis of microRNAs (miRNAs) are provided to illustrate the method. MiRNAs are potential biomarkers for early diagnosis and epigenetic monitoring of diseases. A number of miRNAs have been identified to be differentially expressed, i.e., overexpressed or underexpressed, under diseased states but only a small fraction would be highly effective biomarkers or therapeutic targets of diseases. The meta-analysis method as described in this chapter aims to identify the miRNAs that are consistently found dysregulated across independent studies as biomarkers.
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Affiliation(s)
- Hongmei Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao, China
| | - Siu-Wai Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao, China.
- School of Informatics, University of Edinburgh, Edinburgh, UK.
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Pordzik J, Pisarz K, De Rosa S, Jones AD, Eyileten C, Indolfi C, Malek L, Postula M. The Potential Role of Platelet-Related microRNAs in the Development of Cardiovascular Events in High-Risk Populations, Including Diabetic Patients: A Review. Front Endocrinol (Lausanne) 2018; 9:74. [PMID: 29615970 PMCID: PMC5869202 DOI: 10.3389/fendo.2018.00074] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Accepted: 02/19/2018] [Indexed: 12/13/2022] Open
Abstract
Platelet activation plays a pivotal role in the development and progression of atherosclerosis, which often leads to potentially fatal ischemic events at later stages of the disease. Platelets and platelet microvesicles (PMVs) contain large amounts of microRNA (miRNA), which contributes largely to the pool of circulating miRNAs. Hence, they represent a promising option for the development of innovative diagnostic biomarkers, that can be specific for the underlying etiology. Circulating miRNAs can be responsible for intracellular communication and may have a biological effect on target cells. As miRNAs associated to both cardiovascular diseases (CVD) and diabetes mellitus can be measured by means of a wide array of techniques, they can be exploited as an innovative class of smart disease biomarkers. In this manuscript, we provide an outline of miRNAs associated with platelet function and reactivity (miR-223, miR-126, miR-197, miR-191, miR-21, miR-150, miR-155, miR-140, miR-96, miR-98) that should be evaluated as novel biomarkers to improve diagnostics and treatment of CVD.
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Affiliation(s)
- Justyna Pordzik
- Center for Preclinical Research and Technology CEPT, Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Warsaw, Poland
| | - Katarzyna Pisarz
- Center for Preclinical Research and Technology CEPT, Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Warsaw, Poland
| | - Salvatore De Rosa
- Division of Cardiology, Department of Medical and Surgical Sciences, “Magna Graecia” University, Catanzaro, Italy
| | - Axel Dyve Jones
- Center for Preclinical Research and Technology CEPT, Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Warsaw, Poland
| | - Ceren Eyileten
- Center for Preclinical Research and Technology CEPT, Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Warsaw, Poland
| | - Ciro Indolfi
- Division of Cardiology, Department of Medical and Surgical Sciences, “Magna Graecia” University, Catanzaro, Italy
- URT-CNR, Department of Medicine, Consiglio Nazionale delle Ricerche of IFC, Catanzaro, Italy
| | - Lukasz Malek
- Faculty of Rehabilitation, University of Physical Education, Warsaw, Poland
| | - Marek Postula
- Center for Preclinical Research and Technology CEPT, Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Warsaw, Poland
- *Correspondence: Marek Postula,
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Chen Y, Ding YY, Ren Y, Cao L, Xu QQ, Sun L, Xu MG, Lv HT. Identification of differentially expressed microRNAs in acute Kawasaki disease. Mol Med Rep 2017; 17:932-938. [PMID: 29115644 PMCID: PMC5780174 DOI: 10.3892/mmr.2017.8016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Accepted: 09/27/2017] [Indexed: 12/13/2022] Open
Abstract
The present study used microarray analysis to screen the plasma expression of microRNAs (miRNAs) in patients with acute Kawasaki disease (KD) and aimed to explore the pathogenesis of KD. Plasma was collected from children with acute KD (n=6) and from healthy control children (n=6). Total RNA was extracted and differential miRNA expression between the two groups was determined. Differentially expressed miRNAs were validated using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) in an independent cohort (n=8). Target genes of the differentially expressed miRNAs were predicted and analyzed for gene ontology term enrichment and Kyoto Encyclopedia of Genes and Genomes pathways. miRNA microarray analysis revealed that seven miRNAs (miRs) were significantly upregulated (hsa-let-7b-5p, hsa-miR-223-3p, hsa-miR-4485, hsa-miR-4644, hsa-miR-4800-5p, hsa-miR-6510-5p and hsa-miR-765) and three were significantly downregulated (hsa-miR-33b-3p, hsa-miR-4443 and hsa-miR-4515) in acute KD compared with the healthy controls. hsa-miR-223-3p expression levels detected by RT-qPCR were consistent with the microarray results. A total of 62 target genes of hsa-miR-223-3p were predicted. In total, 10 differentially expressed miRNAs were identified in acute KD, of which hsa-miR-223-3p was verified by RT-qPCR.
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Affiliation(s)
- Ye Chen
- Cardiology Department, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - Yue-Yue Ding
- Cardiology Department, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - Yan Ren
- Radiology Department, Fudan University Affiliated Huashan Hospital, Shanghai 200040, P.R. China
| | - Lei Cao
- Cardiology Department, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - Qiu-Qin Xu
- Cardiology Department, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - Ling Sun
- Cardiology Department, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - Ming-Guo Xu
- Cardiovascular Center, Shenzhen Children's Hospital, Shenzhen, Guangdong 518038, P.R. China
| | - Hai-Tao Lv
- Cardiology Department, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
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Flowers E, Kanaya AM, Fukuoka Y, Allen IE, Cooper B, Aouizerat BE. Preliminary evidence supports circulating microRNAs as prognostic biomarkers for type 2 diabetes. Obes Sci Pract 2017; 3:446-452. [PMID: 29259803 PMCID: PMC5729496 DOI: 10.1002/osp4.134] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 09/01/2017] [Accepted: 09/08/2017] [Indexed: 12/22/2022] Open
Abstract
Background Circulating microRNAs are emerging as potential prognostic biomarkers for the development of type 2 diabetes. However, microRNAs are also associated with complications from impaired glucose metabolism (e.g. endothelial cell function). Prior studies have not evaluated for associations between trajectories of circulating microRNAs with trajectories of fasting blood glucose over time and the responses to behavioral interventions to reduce risk. This study performed longitudinal assessment of microRNAs and fasting blood glucose and identified relationships between microRNAs and behavioral risk reduction interventions. Methods MicroRNAs (n = 353) were measured in subsets (n = 10, n = 8) of participants from previously completed clinical trials that studied behavioral risk reduction interventions. Fasting blood glucose trajectories were associated with changes in 45 microRNAs over 12 months. Results Following a 3‐month physical activity and dietary intervention compared with baseline, 13 microRNAs were differentially expressed. Seven microRNAs (i.e. miR‐106b, miR‐20b, miR‐363, miR‐486, miR‐532, miR‐92a and miR‐93) were commonly identified between the two analyses. Conclusions Further studies are needed to determine which microRNAs are prognostic biomarkers of risk for type 2 diabetes versus consequences of impaired glucose metabolism. Additional future directions of this research are to differentiate whether microRNAs are prognostic and/or diagnostic biomarkers for risk for type 2 diabetes and predictive biomarkers of responses to risk reduction interventions.
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Affiliation(s)
- E. Flowers
- Department of Physiological NursingUniversity of CaliforniaSan FranciscoCAUSA
- Institute for Human GeneticsUniversity of CaliforniaSan FranciscoCAUSA
| | - A. M. Kanaya
- Department of MedicineUniversity of CaliforniaSan FranciscoCAUSA
- Department of Epidemiology and BiostatisticsUniversity of CaliforniaSan FranciscoCAUSA
| | - Y. Fukuoka
- Department of Physiological NursingUniversity of CaliforniaSan FranciscoCAUSA
| | - I. E. Allen
- Department of Epidemiology and BiostatisticsUniversity of CaliforniaSan FranciscoCAUSA
| | - B. Cooper
- University of CaliforniaSan FranciscoCAUSA
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Copier CU, León L, Fernández M, Contador D, Calligaris SD. Circulating miR-19b and miR-181b are potential biomarkers for diabetic cardiomyopathy. Sci Rep 2017; 7:13514. [PMID: 29044172 PMCID: PMC5647433 DOI: 10.1038/s41598-017-13875-2] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 10/03/2017] [Indexed: 12/17/2022] Open
Abstract
Diabetic cardiomyopathy is characterized by metabolic changes in the myocardium that promote a slow and silent dysfunction of muscle fibers, leading to myocardium remodelling and heart failure, independently of the presence of coronary artery diseases or hypertension. At present, no imaging methods allow an early diagnosis of this disease. Circulating miRNAs in plasma have been proposed as biomarkers in the prognosis of several cardiac diseases. This study aimed to determine whether circulating miRNAs could be potential biomarkers of diabetic cardiomyopathy. Mice that were fed with a high fat diet for 16 months, showed metabolic syndrome manifestations, cardiac hypertrophy (without hypertension) and a progressive cardiac function decline. At 16 months, when maximal degree of cardiac dysfunction was observed, 15 miRNAs from a miRNA microarray screening in myocardium were selected. Then, selected miRNAs expression in myocardium (at 4 and 16 months) and plasma (at 4, 12 and 16 months) were measured by RT-qPCR. Circulating miR-19b-3p and miR-181b-5p levels were associated with myocardium levels during the development of diabetic cardiomyopathy (in terms of cardiac dysfunction), suggesting that these miRNAs could be suitable biomarkers of this disease in asymptomatic diabetic patients.
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Affiliation(s)
- Camila Uribe Copier
- Centro de Medicina Regenerativa, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Av. Las Condes 12.438, Lo Barnechea, Santiago, Chile
| | - Luis León
- Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Pedro de Valdivia 425, Providencia, Santiago, Chile
| | - Mauricio Fernández
- Departamento de Cardiología, Clínica Alemana de Santiago - Universidad del Desarrollo, Vitacura 5951, Vitacura, Santiago, Chile
| | - David Contador
- Centro de Medicina Regenerativa, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Av. Las Condes 12.438, Lo Barnechea, Santiago, Chile
| | - Sebastián D Calligaris
- Centro de Medicina Regenerativa, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Av. Las Condes 12.438, Lo Barnechea, Santiago, Chile.
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148
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Jones A, Danielson KM, Benton MC, Ziegler O, Shah R, Stubbs RS, Das S, Macartney-Coxson D. miRNA Signatures of Insulin Resistance in Obesity. Obesity (Silver Spring) 2017; 25:1734-1744. [PMID: 28834285 PMCID: PMC5614819 DOI: 10.1002/oby.21950] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 07/06/2017] [Accepted: 07/07/2017] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Extracellular microRNAs (miRNAs) represent functional biomarkers for obesity and related disorders; this study investigated plasma miRNAs in insulin resistance phenotypes in obesity. METHODS One hundred seventy-five miRNAs were analyzed in females with obesity (insulin sensitivity, n = 11; insulin resistance, n = 19; type 2 diabetes, n = 15) and without obesity (n = 12). Correlations between miRNA level and clinical parameters and levels of 15 miRNAs in a murine obesity model were investigated. RESULTS One hundred six miRNAs were significantly (adjusted P ≤ 0.05) different between controls and at least one obesity phenotype, including miRNAs with the following attributes: previously reported roles in obesity and altered circulating levels (e.g., miR-122, miR-192); known roles in obesity but no reported changes in circulating levels (e.g., miR-378a); and no current reported role in, or association with, obesity (e.g., miR-28-5p, miR-374b, miR-32). The miRNAs in the latter group were found to be associated with extracellular vesicles. Forty-eight miRNAs showed significant correlations with clinical parameters; stepwise regression retained let-7b, miR-144-5p, miR-34a, and miR-532-5p in a model predictive of insulin resistance (R2 = 0.57, P = 7.5 × 10-8 ). Both miR-378a and miR-122 were perturbed in metabolically relevant tissues in a murine model of obesity. CONCLUSIONS This study expands on the role of extracellular miRNAs in insulin-resistant phenotypes of obesity and identifies candidate miRNAs not previously associated with obesity.
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Affiliation(s)
- Angela Jones
- Biomarkers Group, Institute of Environmental Science and Research (ESR), Wellington, New Zealand
| | - Kirsty M Danielson
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, USA
| | - Miles C Benton
- Biomarkers Group, Institute of Environmental Science and Research (ESR), Wellington, New Zealand
- Genomics Research Centre, Institute of Health and Biomedical Innovation, Queensland University of Technology, Australia
| | - Olivia Ziegler
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, USA
| | - Ravi Shah
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, USA
| | | | - Saumya Das
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, USA
| | - Donia Macartney-Coxson
- Biomarkers Group, Institute of Environmental Science and Research (ESR), Wellington, New Zealand
- corresponding author Contact: Donia Macartney-Coxson, Biomarkers Group, Institute of Environmental Science and Research (ESR), Wellington, 5022, New Zealand. Telephone: +64 4 917 5931 Fax: +64 4 914 0770
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149
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Identification and validation of the microRNA response elements in the 3'-untranslated region of the UDP glucuronosyltransferase (UGT) 2B7 and 2B15 genes by a functional genomics approach. Biochem Pharmacol 2017; 146:199-213. [PMID: 28962835 DOI: 10.1016/j.bcp.2017.09.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 09/25/2017] [Indexed: 12/15/2022]
Abstract
Posttranscriptional repression of UDP-glucuronosyltransferase (UGT) 2B7 and 2B15 expression by microRNAs (miRNAs) may be an important mechanism underlying inter-individual variability in drug glucuronidation. Furthermore, the UGT2B15 3'-UTR contains a common SNP (rs3100) that could influence miRNA binding. The aim of this study was to identify the complete complement of miRNAs that could regulate UGT2B7 and UGT2B15 expression through binding to the reference and/or variant 3'-UTRs. Luciferase reporter plasmids containing either the reference or variant 3'-UTRs were screened against a 2,048 human miRNA library to identify those miRNAs that decrease luciferase activity by at least 30% when co-transfected into HEK293 cells. Six novel miRNAs (miR-1293, miR-3664-3p, miR-4317, miR-513c-3p, miR-4483, and miR-142-3p) were identified that repressed the reference UGT2B7 3'-UTR, while twelve novel miRNAs (miR-770-5p, miR-103b, miR-3924, miR-376b-3p, miR-455-5p, miR-605, miR-624-3p, miR-4712-5p, miR-3675-3p, miR-6500-5p, miR-548as-3p, and miR-4292) repressed both the reference and rs3100 variant UGT2B15 3'-UTR. Deletion and mutagenesis studies confirmed the binding site location of each miRNA. Although the UGT2B15 rs3100 SNP was located within the miR-376c-3p response element, there was no effect on miRNA binding. miR-142-3p, miR-3664-3p, miR-4317, miR-455-5p, miR-376c-3p, miR-770-5p, miR-3675-3p, miR-331-5p, miR-605, and miR-376b-3p transcript levels were measured by quantitative PCR and correlated with UGT2B7 and UGT2B15 enzyme activities in 27 human liver samples. A significant negative correlation (Rs = -0.53; p = 0.005) was demonstrated between hepatic miR-455-5p transcript levels and UGT2B15-mediated S-oxazepam glucuronidation activities. Thus, the UGT2B7 and UGT2B15 3'-UTRs contain miRNA response elements for multiple miRNAs that may contribute to variable drug glucuronidation.
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150
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Umrani MR, Joglekar MV, Somerville Glover E, Wong W, Hardikar AA. Connexins and microRNAs: Interlinked players in regulating islet function? Islets 2017; 9:99-108. [PMID: 28686518 PMCID: PMC5624287 DOI: 10.1080/19382014.2017.1331192] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 05/10/2017] [Accepted: 05/11/2017] [Indexed: 02/09/2023] Open
Abstract
Pancreatic β-cells are connected to neighboring endocrine cells through the adherin proteins and gap junctions. Connexin 36 (Cx36) is one of the most well-studied and abundantly expressed gap-junction proteins within rodent islets, which is important in coordinated insulin secretion. The expression of connexins is regulated at various levels and by several mechanisms; one of which is via microRNAs. In past 2 decades, microRNAs (miRNAs) have emerged as key molecules in developmental, physiologic and pathological processes. However, very few studies have demonstrated miRNA-mediated regulation of connexins. Even though there are no reports yet on miRNAs and Cx36; we envisage that considering the important role of connexins and microRNAs in insulin secretion, there would be common pathways interlinking these biomolecules. Here, we discuss the current literature on connexins and miRNAs specifically with reference to islet function.
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Affiliation(s)
- Malati R. Umrani
- National centre for cell science, Ganeshkhind, Pune University Campus, Pune, India
- Diabetes and Islet Biology Group, NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia
| | - Mugdha V. Joglekar
- Diabetes and Islet Biology Group, NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia
| | - Ella Somerville Glover
- Diabetes and Islet Biology Group, NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia
| | - Wilson Wong
- Diabetes and Islet Biology Group, NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia
| | - Anandwardhan A. Hardikar
- Diabetes and Islet Biology Group, NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia
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