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Mir-210 and cardiomyocytes

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https://www.readbyqxmd.com/read/29710553/microrna-210-aggravates-hypoxia-induced-injury-in-cardiomyocyte-h9c2-cells-by-targeting-cxcr4
#1
Min Feng, Zongqing Li, Dong Wang, Fang Wang, Chenyan Wang, Chunfang Wang, Faming Ding
BACKGROUND: Myocardial infarction (MI), a leading cause of mortality, is identified as the myocardial necrosis due to prolonged ischemia. Hypoxia, resulting from ischemia, induces cell apoptosis during MI. Since miR-210 is a hypoxia inducible factor, we aimed to explore the functional role of miR-210 in hypoxic H9c2 cells. METHODS: Hypoxia-induced cell injury was evaluated according to cell viability, apoptosis and expression of apoptosis-associated proteins. miR-210 expression after hypoxia was tested...
June 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29461605/mir-210-protects-cardiomyocytes-from-ogd-r-injury-by-inhibiting-e2f3
#2
W-S Bian, P-X Shi, X-F Mi, Y-Y Sun, D-D Yang, B-F Gao, S-X Wu, G-C Fan
OBJECTIVE: To detect the change in miRNA-210 expression of cardiomyocytes under hypoxia/reoxygenation status. Also, the effect of miR-210 on the apoptosis of cardiomyocytes induced by oxygen-glucose deprivation/reperfusion (OGD/R) and its mechanism through establishing the OGD/R injury model of primary cardiomyocytes in this experiment were investigated. MATERIALS AND METHODS: The cell model of OGD/R injury was established. The cell apoptosis in each group was detected by methyl thiazolyl tetrazolium (MTT) assay and detection of Caspase-3 activity...
February 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29383108/sevoflurane-preconditioning-promotes-activation-of-resident-cscs-by-transplanted-bmscs-via-mir-210-in-a-rat-model-for-myocardial-infarction
#3
Ti Wen, Li Wang, Xue-Jun Sun, Xi Zhao, Guang-Wei Zhang, Jesse Li-Ling
Objective: To assess the effect of sevoflurane preconditioning (SFpre) on bone marrow mesenchymal stem cells (BMSCs) for the treatment of acute myocardial infarction. Results: 24 hours after the transplantation, decreased apoptosis of implanted BMSCs and up-regulation of cytokines expression were found within the ischemic area in SFpre BMSCs group compared with BMSCs group ( P < 0.05). 4 weeks later, SFpre BMSCs group showed more viable implanted BMSCs, CSC-derived cardiomyocytes, and higher vessel and myocardial density within the infarcted region and improved cardiac function, compared with control and BMSCs groups ( P < 0...
December 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29141446/myocardial-reparative-functions-of-exosomes-from-mesenchymal-stem-cells-are-enhanced-by-hypoxia-treatment-of-the-cells-via-transferring-microrna-210-in-an-nsmase2-dependent-way
#4
Jinyun Zhu, Kai Lu, Ning Zhang, Yun Zhao, Qunchao Ma, Jian Shen, Yinuo Lin, Pingping Xiang, Yaoliang Tang, Xinyang Hu, Jinghai Chen, Wei Zhu, Keith A Webster, Jian'an Wang, Hong Yu
Hypoxia treatment enhances paracrine effect of mesenchymal stem cells (MSCs). The aim of this study was to investigate whether exosomes from hypoxia-treated MSCs (ExoH ) are superior to those from normoxia-treated MSCs (ExoN ) for myocardial repair. Mouse bone marrow-derived MSCs were cultured under hypoxia or normoxia for 24 h, and exosomes from conditioned media were intramyocardially injected into infarcted heart of C57BL/6 mouse. ExoH resulted in significantly higher survival, smaller scar size and better cardiac functions recovery...
November 16, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29113299/microrna-210-suppresses-glucocorticoid-receptor-expression-in-response-to-hypoxia-in-fetal-rat-cardiomyocytes
#5
Shannalee R Martinez, Qingyi Ma, Chiranjib Dasgupta, Xianmei Meng, Lubo Zhang
Hypoxia is a common intrauterine stressor, often resulting in intrauterine growth restriction and increased risk for cardiovascular disease later in life. The aim of this work was to test the hypothesis that microRNA-210 (miR-210) mediates the detrimental suppression of glucocorticoid receptor (GR) in response to hypoxia in fetal rat cardiomyocytes. Cardiomyocytes isolated from gestational day 21 Sprague Dawley fetal rats showed increased miR-210 levels and reduced GR abundance after exposure to ex vivo hypoxia (1% O2)...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29032377/microrna-210-modulates-the-cellular-energy-metabolism-shift-during-h2o2-induced-oxidative-stress-by-repressing-iscu-in-h9c2-cardiomyocytes
#6
Wei Sun, Lei Zhao, Xianjing Song, Jichang Zhang, Yue Xing, Ning Liu, Youyou Yan, Zhibo Li, Yang Lu, Junduo Wu, Longbo Li, Yanlong Xiao, Xin Tian, Tianyi Li, Yinuo Guan, Yiran Wang, Bin Liu
BACKGROUND/AIMS: The myocardial energy metabolism shift is one of the most important pathological features of ischemic heart disease (IHD). Although several microRNAs (miRs) are involved in the regulation of myocardial energy metabolism, their exact effects and underlying mechanisms remain unclear. The aim of this study was to investigate whether microRNA(miR-210) regulates the energy metabolism shift during oxidative stress in H9c2 cardiomyocytes. METHODS: Cell survival was analyzed via CCK assay...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28948298/microrna-210-mediated-proliferation-survival-and-angiogenesis-promote-cardiac-repair-post-myocardial-infarction-in-rodents
#7
Mohammed Arif, Raghav Pandey, Perwez Alam, Shujia Jiang, Sakthivel Sadayappan, Arghya Paul, Rafeeq P H Ahmed
An innovative approach for cardiac regeneration following injury is to induce endogenous cardiomyocyte (CM) cell cycle re-entry. In the present study, CMs from adult rat hearts were isolated and transfected with cel-miR-67 (control) and rno-miR-210. A significant increase in CM proliferation and mono-nucleation were observed in miR-210 group, in addition to a reduction in CM size, multi-nucleation, and cell death. When compared to control, β-catenin and Bcl-2 were upregulated while APC (adenomatous polyposis coli), p16, and caspase-3 were downregulated in miR-210 group...
December 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28661226/microrna-210-alleviates-oxidative-stress-associated-cardiomyocyte-apoptosis-by-regulating-bnip3
#8
Hongying Diao, Bin Liu, Yongfeng Shi, Chunli Song, Ziyuan Guo, Ning Liu, Xianjing Song, Yang Lu, Xiaoye Lin, Zhuoran Li
Oxidative stress-induced myocardial apoptosis and necrosis are involved in ischemia/reperfusion (I/R) injury. This study was performed to investigate microRNA (miR)-210's role in oxidative stress-related myocardial damage. The expression of miR-210 was upregulated in myocardial tissues of I/R rats, while that of Bcl-2 adenovirus E1B 19kDa-interacting protein 3 (BNIP3) was downregulated. To simulate in vivo oxidative stress, H9c2 cells were treated with H2O2 for 48 h. MiR-210 level was increased upon H2O2 stimulation, peaked at 8 h, and then decreased...
September 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/26889043/splenic-rna-and-microrna-mimics-promote-complement-factor-b-production-and-alternative-pathway-activation-via-innate-immune-signaling
#9
Lin Zou, Yan Feng, Ganqiong Xu, Wenling Jian, Wei Chao
Complement factor B (cfB) is an essential component of the alternative pathway (AP) and plays an important role in the pathogenesis of polymicrobial sepsis. However, the mechanism leading to cfB production and AP activation during sepsis remains poorly understood. In this study, we found that plasma cell-free RNA was significantly increased following cecal ligation and puncture (CLP), an animal model of polymicrobial sepsis, and was closely associated with sepsis severity. Quantitative RT-PCR and microRNA (miRNA) array analysis revealed an increase in bacterial RNA and multiple host miRNAs (miR-145, miR-146a, miR-122, miR-210) in the blood following CLP...
March 15, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/26847839/hmgb1-induces-apoptosis-and-emt-in-association-with-increased-autophagy-following-h-r-injury-in-cardiomyocytes
#10
Fan Ouyang, He Huang, Mingyu Zhang, Mingxian Chen, Haobo Huang, Fang Huang, Shenghua Zhou
Hypoxia/reoxygenation (H/R) is a critical factor in the pathogenesis of tissue injury following myocardial infarction (MI) which can lead to tissue damage and pathological remodeling. Therefore, it is necessary to try and prevent myocardial H/R injury in order to optimize the treatment of MI. This study aimed to explore the functions and molecular mechanisms of action of high mobility group box 1 (HMGB1) and its role in H/R injury to H9c2 cells. The mRNA expression of levels genes were detected by RT-qPCR. The protein levels were examined by western blot analysis...
March 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/26089917/exosomes-for-intramyocardial-intercellular-communication
#11
REVIEW
Elisabetta Cervio, Lucio Barile, Tiziano Moccetti, Giuseppe Vassalli
Cross-talk between different cell types plays central roles both in cardiac homeostasis and in adaptive responses of the heart to stress. Cardiomyocytes (CMs) send biological messages to the other cell types present in the heart including endothelial cells (ECs) and fibroblasts. In turn, CMs receive messages from these cells. Recent evidence has now established that exosomes, nanosized secreted extracellular vesicles, are crucial mediators of such messages. CMs, ECs, cardiac fibroblasts, and cardiac progenitor cells (CPCs) release exosomes carrying nonrandom subsets of proteins, lipids, and nucleic acids present in their cells of origin...
2015: Stem Cells International
https://www.readbyqxmd.com/read/26000464/exosomes-microvesicles-from-induced-pluripotent-stem-cells-deliver-cardioprotective-mirnas-and-prevent-cardiomyocyte-apoptosis-in-the-ischemic-myocardium
#12
Yingjie Wang, Lan Zhang, Yongjun Li, Lijuan Chen, Xiaolong Wang, Wei Guo, Xue Zhang, Gangjian Qin, Sheng-hu He, Arthur Zimmerman, Yutao Liu, Il-man Kim, Neal L Weintraub, Yaoliang Tang
BACKGROUND/OBJECTIVES: Induced pluripotent stem cells (iPS) exhibit enhanced survival and proliferation in ischemic tissues. However, the therapeutic application of iPS cells is limited by their tumorigenic potential. We hypothesized that iPS cells can transmit cytoprotective signals to cardiomyocytes via exosomes/microvesicles. METHODS: Exosomes/microvesicles secreted from mouse cardiac fibroblast (CF)-derived iPS cells (iPS-exo) were purified from conditioned medium and confirmed by electron micrograph, size distribution and zeta potential by particle tracking analyzer and protein expression of the exosome markers CD63 and Tsg101...
August 1, 2015: International Journal of Cardiology
https://www.readbyqxmd.com/read/25968948/insulin-protects-h9c2-rat-cardiomyoblast-cells-against-hydrogen-peroxide-induced-injury-through-upregulation-of-microrna-210
#13
Y-F Shi, N Liu, Y-X Li, C-L Song, X-J Song, Z Zhao, B Liu
BACKGROUND: Insulin protects cardiomyocytes from reactive oxygen species (ROS)-induced apoptosis after ischemic/reperfusion injury, but the mechanism is not clear. This study investigated the protective mechanism of insulin in preventing cardiomyocyte apoptosis from ROS injury. METHODS: Rat cardiomyoblast H9c2 cells were treated with hydrogen peroxide (H2O2) or insulin at various concentrations for various periods of time, or with insulin and H2O2 for various periods of time...
2015: Free Radical Research
https://www.readbyqxmd.com/read/25633833/deciphering-the-microrna-signature-of-pathological-cardiac-hypertrophy-by-engineered-heart-tissue-and-sequencing-technology
#14
Marc N Hirt, Tessa Werner, Daniela Indenbirken, Malik Alawi, Paul Demin, Ann-Cathrin Kunze, Justus Stenzig, Jutta Starbatty, Arne Hansen, Jan Fiedler, Thomas Thum, Thomas Eschenhagen
Pathological cardiac hypertrophy and fibrosis are modulated by a set of microRNAs, most of which have been detected in biologically complex animal models of hypertrophy by arrays with moderate sensitivity and disregard of passenger strand (previously "star") microRNAs. Here, we aimed at precisely analyzing the microRNA signature of cardiac hypertrophy and fibrosis by RNA sequencing in a standardized in vitro hypertrophy model based on engineered heart tissue (EHT). Spontaneously beating, force-generating fibrin EHTs from neonatal rat heart cells were subjected to afterload enhancement for 7days (AE-EHT), and EHTs without intervention served as controls...
April 2015: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/25016614/extracellular-vesicles-from-human-cardiac-progenitor-cells-inhibit-cardiomyocyte-apoptosis-and-improve-cardiac-function-after-myocardial-infarction
#15
Lucio Barile, Vincenzo Lionetti, Elisabetta Cervio, Marco Matteucci, Mihaela Gherghiceanu, Laurentiu M Popescu, Tiziano Torre, Francesco Siclari, Tiziano Moccetti, Giuseppe Vassalli
AIMS: Recent evidence suggests that cardiac progenitor cells (CPCs) may improve cardiac function after injury. The underlying mechanisms are indirect, but their mediators remain unidentified. Exosomes and other secreted membrane vesicles, hereafter collectively referred to as extracellular vesicles (EVs), act as paracrine signalling mediators. Here, we report that EVs secreted by human CPCs are crucial cardioprotective agents. METHODS AND RESULTS: CPCs were derived from atrial appendage explants from patients who underwent heart valve surgery...
September 1, 2014: Cardiovascular Research
https://www.readbyqxmd.com/read/23608607/microrna-210-decreases-heme-levels-by-targeting-ferrochelatase-in-cardiomyocytes
#16
Aijun Qiao, Arineh Khechaduri, R Kannan Mutharasan, Rongxue Wu, Varun Nagpal, Hossein Ardehali
BACKGROUND: MicroRNA-210 (miR-210) increases in hypoxia and regulates mitochondrial respiration through modulation of iron-sulfur cluster assembly proteins (ISCU1/2), a protein that is involved in Fe/S cluster synthesis. However, it is not known how miR-210 affects cellular iron levels or production of heme, another iron containing molecule that is also needed for cellular and mitochondrial function. METHODS AND RESULTS: To screen for micro-ribonucleic acids (miRNAs) regulated by iron, we performed a miRNA gene array in neonatal rat cardiomyocytes treated with iron chelators...
April 22, 2013: Journal of the American Heart Association
https://www.readbyqxmd.com/read/23284745/in-vitro-epigenetic-reprogramming-of-human-cardiac-mesenchymal-stromal-cells-into-functionally-competent-cardiovascular-precursors
#17
Matteo Vecellio, Viviana Meraviglia, Simona Nanni, Andrea Barbuti, Angela Scavone, Dario DiFrancesco, Antonella Farsetti, Giulio Pompilio, Gualtiero I Colombo, Maurizio C Capogrossi, Carlo Gaetano, Alessandra Rossini
Adult human cardiac mesenchymal-like stromal cells (CStC) represent a relatively accessible cell type useful for therapy. In this light, their conversion into cardiovascular precursors represents a potential successful strategy for cardiac repair. The aim of the present work was to reprogram CStC into functionally competent cardiovascular precursors using epigenetically active small molecules. CStC were exposed to low serum (5% FBS) in the presence of 5 µM all-trans Retinoic Acid (ATRA), 5 µM Phenyl Butyrate (PB), and 200 µM diethylenetriamine/nitric oxide (DETA/NO), to create a novel epigenetically active cocktail (EpiC)...
2012: PloS One
https://www.readbyqxmd.com/read/22648522/stem-cell-based-delivery-of-hypoxamir-210-to-the-infarcted-heart-implications-on-stem-cell-survival-and-preservation-of-infarcted-heart-function
#18
Ha Won Kim, Shujia Jiang, Muhammad Ashraf, Khawaja Husnain Haider
This study seeks to test our hypothesis that transgenic induction of miR-210 in mesenchymal stem cells (MSC) simulates the pro-survival effects of ischemic preconditioning (IPC) and that engraftment of (PC)MSC helps in the functional recovery of ischemic heart by miR-210 transfer to host cardiomyocytes through gap junctions. miR-210 expression in MSC was achieved by IPC or nanoparticle-based transfection of miR-210 plasmid ((miR)MSC) and functional recovery of the infarcted heart of rat transplanted with (PC)MSC or (miR)MSC was evaluated...
September 2012: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/22427379/microrna-dysregulation-in-diabetic-ischemic-heart-failure-patients
#19
Simona Greco, Pasquale Fasanaro, Serenella Castelvecchio, Yuri D'Alessandra, Diego Arcelli, Marisa Di Donato, Alexis Malavazos, Maurizio C Capogrossi, Lorenzo Menicanti, Fabio Martelli
Increased morbidity and mortality associated with ischemic heart failure (HF) in type 2 diabetic patients requires a deeper understanding of the underpinning pathogenetic mechanisms. Given the implication of microRNAs (miRNAs) in HF, we investigated their regulation and potential role. miRNA expression profiles were measured in left ventricle biopsies from 10 diabetic HF (D-HF) and 19 nondiabetic HF (ND-HF) patients affected by non-end stage dilated ischemic cardiomyopathy. The HF groups were compared with each other and with 16 matched nondiabetic, non-HF control subjects...
June 2012: Diabetes
https://www.readbyqxmd.com/read/22038740/role-of-micrornas-in-the-reperfused-myocardium-towards-post-infarct-remodelling
#20
REVIEW
Hongyan Zhu, Guo-Chang Fan
Myocardial ischaemia/reperfusion (I/R)-induced remodelling generally includes cell death (necrosis and apoptosis), myocyte hypertrophy, angiogenesis, cardiac fibrosis, and myocardial dysfunction. It is becoming increasingly clear that microRNAs (miRNAs or miRs), a group of highly conserved small (∼18-24 nucleotide) non-coding RNAs, fulfil specific functions in the reperfused myocardium towards post-infarct remodelling. While miR-21, -133, -150, -195, and -214 regulate cardiomyocyte hypertrophy, miR-1/-133 and miR-208 have been elucidated to influence myocardial contractile function...
May 1, 2012: Cardiovascular Research
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