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MicroRNA cardiac fibrosis

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https://www.readbyqxmd.com/read/28526319/lncrna-gas5-controls-cardiac-fibroblast-activation-and-fibrosis-by-targeting-mir-21-via-pten-mmp-2-signaling-pathway
#1
Hui Tao, Jia-Gui Zhang, Run-He Qin, Chen Dai, Peng Shi, Jing-Jing Yang, Zi-Yu Deng, Kai-Hu Shi
Long noncoding RNAs (LncRNAs) are aberrantly expressed in many diseases including cardiac fibrosis. LncRNA growth arrest-specific 5 (GAS5) is reported as a significant mediator in the control of cell proliferation and growth; however, the role and function in cardiac fibrosis remain unknown. In this study, we confirmed that GAS5 was lowly expressed in cardiac fibrosis tissues as well as activated cardiac fibroblast. Overexpression of GAS5 inhibited the proliferation of cardiac fibroblast. Moreover, microRNA-21 (miR-21) has been reported to be overexpressed in cardiac fibrosis tissues as well as activated cardiac fibroblast, which is responsible for the progression of cardiac fibrosis...
May 17, 2017: Toxicology
https://www.readbyqxmd.com/read/28504961/wnt-%C3%AE-catenin-pathway-in-arrhythmogenic-cardiomyopathy
#2
REVIEW
Alessandra Lorenzon, Martina Calore, Giulia Poloni, Leon J De Windt, Paola Braghetta, Alessandra Rampazzo
Wnt/β-catenin signaling pathway plays essential roles in heart development as well as cardiac tissue homoeostasis in adults. Abnormal regulation of this signaling pathway is linked to a variety of cardiac disease conditions, including hypertrophy, fibrosis, arrhythmias, and infarction. Recent studies on genetically modified cellular and animal models document a crucial role of Wnt/β-catenin signaling in the molecular pathogenesis of arrhythmogenic cardiomyopathy (AC), an inherited disease of intercalated discs, typically characterized by ventricular arrhythmias and progressive substitution of the myocardium with fibrofatty tissue...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28495464/microrna-21-via-dysregulation-of-ww-domain-containing-protein-1-regulate-atrial-fibrosis-in-atrial-fibrillation
#3
Hui Tao, Meng Zhang, Jing-Jing Yang, Kai-Hu Shi
BACKGROUND: microRNAs (miRs) have been reported to regulate cell biological functions. To explore the underlying mechanism of miR-21 involvement in patients with atrial fibrosis and atrial fibrillation (AF). METHODS: In total, 49 patients (24 AF, sinus rhythm 25) aged 33-68 years old, including heart valve replacement surgery and cardiac catheterization. The pathological changes and collagen depositions was analyzed by Masson's Trichrome Staining. miR-21, TGF-β1, Smad2, p-Smad2, WWP-1, collagen I and collagen III expression were analyzed by Western blotting, qRT-PCR, miR one step qRT-PCR, respectively...
March 12, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28460073/regulation-of-mir-29b-and-mir-30c-by-vitamin-d-receptor-activators-contributes-to-attenuate-uraemia-induced-cardiac-fibrosis
#4
Sara Panizo, Natalia Carrillo-López, Manuel Naves-Díaz, Guillermo Solache-Berrocal, Laura Martínez-Arias, Raúl R Rodrigues-Díez, Amalia Fernández-Vázquez, Carlos Martínez-Salgado, Marta Ruiz-Ortega, Adriana Dusso, Jorge B Cannata-Andía, Isabel Rodríguez
Background.: Uraemic cardiomyopathy, a process mainly associated with increased myocardial fibrosis, is the leading cause of death in chronic kidney disease patients and can be prevented by vitamin D receptor activators (VDRAs). Since some microRNAs (miRNAs) have emerged as regulators of the fibrotic process, we aimed to analyse the role of specific miRNAs in VDRA prevention of myocardial fibrosis as well as their potential use as biomarkers. Methods.: Wistar rats were nephrectomized and treated intraperitoneally with equivalent doses of two VDRAs: calcitriol and paricalcitol...
April 28, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28446969/micrornas-pleiotropic-players-in-congenital-heart-disease-and-regeneration
#5
REVIEW
Sarah C Hoelscher, Stefanie A Doppler, Martina Dreßen, Harald Lahm, Rüdiger Lange, Markus Krane
Congenital heart disease (CHD) is the leading cause of infant death, affecting approximately 4-14 live births per 1,000. Although surgical techniques and interventions have improved significantly, a large number of infants still face poor clinical outcomes. MicroRNAs (miRs) are known to coordinately regulate cardiac development and stimulate pathological processes in the heart, including fibrosis or hypertrophy and impair angiogenesis. Dysregulation of these regulators could therefore contribute (I) to the initial development of CHD and (II) at least partially to the observed clinical outcomes of many CHD patients by stimulating the aforementioned pathways...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28439258/diabetic-cardiomyopathy-an-immunometabolic-perspective
#6
REVIEW
Paras K Mishra, Wei Ying, Shyam Sundar Nandi, Gautam K Bandyopadhyay, Kaushik K Patel, Sushil K Mahata
The heart possesses a remarkable inherent capability to adapt itself to a wide array of genetic and extrinsic factors to maintain contractile function. Failure to sustain its compensatory responses results in cardiac dysfunction, leading to cardiomyopathy. Diabetic cardiomyopathy (DCM) is characterized by left ventricular hypertrophy and reduced diastolic function, with or without concurrent systolic dysfunction in the absence of hypertension and coronary artery disease. Changes in substrate metabolism, oxidative stress, endoplasmic reticulum stress, formation of extracellular matrix proteins, and advanced glycation end products constitute the early stage in DCM...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28407626/exogenous-mirna-146a-enhances-the-therapeutic-efficacy-of-human-mesenchymal-stem-cells-by-increasing-vascular-endothelial-growth-factor-secretion-in-the-ischemia-reperfusion-injured-heart
#7
Hyang-Hee Seo, Se-Yeon Lee, Chang Youn Lee, Ran Kim, Pilseog Kim, Sekyung Oh, Hojin Lee, Min Young Lee, Jongmin Kim, Lark Kyun Kim, Ki-Chul Hwang, Woochul Chang
Adult stem cells have been studied as a promising therapeutic modality for the functional restoration of the damaged heart. In the present study, a strategy for enhancing the angiogenic efficacy of human mesenchymal stem cells (hMSCs) using micro-RNA was examined. We investigated whether micro-RNA-146a (miR-146a) influences the secretion of vascular endothelial growth factor (VEGF) and angiogenesis of MSCs. Our data indicated that miR-146a-transfected hMSCs (hMSCmiR-146a) decreased the expression of neurofibromin 2, an inhibitor of p21-activated kinase-1 (PAK1)...
2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28368454/role-and-regulation-of-micrornas-in-aldosterone-mediated-cardiac-injury-and-dysfunction-in-male-rats
#8
Jana P Ball, Maryam Syed, Rodrigo O Marañon, Michael E Hall, Roshan Kc, Jane F Reckelhoff, Licy L Yanes Cardozo, Damian G Romero
Primary aldosteronism is characterized by excess aldosterone (ALDO) secretion independent of the renin-angiotensin system and accounts for ∼10% of hypertensive patients. Excess ALDO, inappropriate for the salt intake status, causes cardiac hypertrophy, inflammation, fibrosis and hypertension. The molecular mechanisms that trigger the onset and progression of ALDO-mediated cardiac injury are poorly understood. MicroRNAs (miRNAs) are endogenous, small, non-coding RNAs that have been implicated in diverse cardiac pathologies, yet very little is known about their regulation and role in ALDO-mediated cardiac injury...
March 20, 2017: Endocrinology
https://www.readbyqxmd.com/read/28341712/deficiency-of-cardiomyocyte-specific-microrna-378-contributes-to-the-development-of-cardiac-fibrosis-involving-a-transforming-growth-factor-%C3%AE-tgf%C3%AE-1-dependent-paracrine-mechanism
#9
Raghu S Nagalingam, Nagalingam R Sundaresan, Mariam Noor, Mahesh P Gupta, R John Solaro, Madhu Gupta
No abstract text is available yet for this article.
March 24, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28289072/down-regulation-of-mir-15a-b-accelerates-fibrotic-remodelling-in-the-type%C3%A2-2-diabetic-human-and-mouse-heart
#10
Shruti Rawal, Pujika Emani Munasinghe, Prashanth Thevkar Nagesh, Jason Kar Sheng Lew, Gregory T Jones, Michael J A Williams, Philip Davis, Dick Bunton, Ivor F Galvin, Patrick Manning, Regis R Lamberts, Rajesh Katare
Aim: Myocardial fibrosis is a well-established cause of increased myocardial stiffness and subsequent diastolic dysfunction in the diabetic heart. The molecular regulators that drive the process of fibrotic events in the diabetic heart are still unknown. We determined the role of the microRNA (miR)-15 family in fibrotic remodelling of the diabetic heart.Methods and results: Right atrial appendage (RAA) and left ventricular (LV) biopsy tissues collected from diabetic and non-diabetic (ND) patients undergoing coronary artery bypass graft surgery showed significant down-regulation of miR-15a and -15b...
May 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28251559/microrna-98-inhibits-tgf-%C3%AE-1-induced-differentiation-and-collagen-production-of-cardiac-fibroblasts-by-targeting-tgfbr1
#11
Ranran Cheng, Ruiying Dang, Yan Zhou, Min Ding, Huikun Hua
To investigate the effects of miR-98 on TGF-β1-induced cardiac fibrosis in human cardiac fibroblasts (HCFs), and to establish the mechanism underlying these effects, HCFs were transfected with miR-98 inhibitor or mimic, and then treated with or without TGF-β1. The level of miR-98 was determined by qRT-PCR in TGF-β1-induced HCFs. Cell differentiation and collagen accumulation of HCFs were detected by qRT-PCR and Western blot assays, respectively. The mRNA and protein expressions of TGFBR1 were determined by qRT-PCR and Western blotting...
March 1, 2017: Human Cell
https://www.readbyqxmd.com/read/28149909/therapeutic-potential-of-targeting-micrornas-to-regulate-cardiac-fibrosis-mir-433-a-new-fibrotic-player
#12
Jenny Y Y Ooi, Bianca C Bernardo, Julie R McMullen
No abstract text is available yet for this article.
December 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28130757/microrna-29-a-crucial-player-in-fibrotic-disease
#13
REVIEW
Zhenjun Deng, Yongjing He, Xujuan Yang, Hang Shi, Ao Shi, Lechun Lu, Li He
Fibrosis is a common pathological state characterized by the excessive accumulation of extracellular matrix components, but the pathogenesis of the disease is still not clear. Previous studies have shown that microRNA-29 (miR-29) can play pivotal roles in the regulation of a variety of organ fibrosis, including cardiac fibrosis, hepatic fibrosis, lung fibrosis, systemic sclerosis, and keloid. In this review, we outline the structure, expression, and regulation of miR-29 as well as its role in fibrotic diseases...
June 2017: Molecular Diagnosis & Therapy
https://www.readbyqxmd.com/read/28123343/let-7a-is-an-antihypertrophic-regulator-in-the-heart-via-targeting-calmodulin
#14
Xin Zhou, Fei Sun, Shenjian Luo, Wei Zhao, Ti Yang, Guiye Zhang, Ming Gao, Renzhong Lu, You Shu, Wei Mu, Yanan Zhuang, Fengzhi Ding, Chaoqian Xu, Yanjie Lu
Background: MicroRNAs (miRNAs) have been emerged as important regulator in a multiple of cardiovascular disease, including arrhythmia, cardiac hypertrophy and fibrosis, and myocardial infarction. The aim of this study was to investigate whether miRNA let-7a has antihypertrophic effects in angiotensin II (AngII)-induced cardiac hypertrophy. Methods: Neonatal rat ventricular myocytes (NRVMs) were exposed to AngII for 36 h as a cellular model of hypertrophy; subcutaneous injection of AngII for 2 weeks was used to establish a mouse model of cardiac hypertrophy in vivo study...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28112175/luteolin-7-diglucuronide-attenuates-isoproterenol-induced-myocardial-injury-and-fibrosis-in-mice
#15
Bing-Bing Ning, Yong Zhang, Dan-Dan Wu, Jin-Gang Cui, Li Liu, Pei-Wei Wang, Wen-Jian Wang, Wei-Liang Zhu, Yu Chen, Teng Zhang
Myocardial injury and ensuing fibrotic alterations impair normal heart architecture and cause cardiac dysfunction. Oxidative stress has been recognized as a key player in the pathogenesis of cardiac injury and progression of cardiac dysfunction, and promoting fibrosis. In the current study we investigated whether luteolin-7-diglucuronide (L7DG), a naturally occurring antioxidant found in edible plants, could attenuate isoproterenol (ISO)-induced myocardial injury and fibrosis in mice and the underlying mechanisms...
March 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28101763/mir-126-affects-brain-heart-interaction-after-cerebral-ischemic-stroke
#16
Jieli Chen, Chengcheng Cui, Xiaoping Yang, Jiang Xu, Poornima Venkat, Alex Zacharek, Peng Yu, Michael Chopp
Cardiovascular diseases are approximately three times higher in patients with neurological deficits than in patients without neurological deficits. MicroRNA-126 (MiR-126) facilitates vascular remodeling and decreases fibrosis and is emerging as an important factor in the pathogenesis of cardiovascular diseases and cerebral stroke. In this study, we tested the hypothesis that decreased miR-126 after ischemic stroke may play an important role in regulating cardiac function. Wild-type (WT), specific conditional-knockout endothelial cell miR-126 (miR-126(EC-/-)), and miR-126 knockout control (miR-126(fl/fl)) mice were subjected to distal middle cerebral artery occlusion (dMCAo) (n = 10/group)...
January 19, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/28055991/role-of-mir-24-furin-and-transforming-growth-factor-%C3%AE-1-signal-pathway-in-fibrosis-after-cardiac-infarction
#17
Zhufeng Chen, Sumei Lu, Miao Xu, Peng Liu, Rui Ren, Wanshan Ma
BACKGROUND Cardiac fibrosis after primary infarction is a type of pathological phenomena as shown by increased collagen in myocardial cells. Transforming growth factor (TGF)-β1 is a critical factor participating in myocardial fibrosis. A previous study has shown the inhibitory role on TGF-β1 by microRNA-24 (miR-24) via targeting Furin. This study thus investigated the role of miR-24 and Furin/TGF-β1 in rat myocardial fibrosis. MATERIAL AND METHODS A total of 40 adult SD rats (both males and females) were prepared for myocardial infarction model by ligating the descending branch of left coronary artery after anesthesia...
January 5, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28025989/microrna-142-3p-inhibits-hypoxia-reoxygenation%C3%A2-induced-apoptosis-and-fibrosis-of-cardiomyocytes-by-targeting-high-mobility-group-box%C3%A2-1
#18
Yi Wang, Min Ouyang, Qiong Wang, Zaijin Jian
Myocardial ischemia/reperfusion (I/R) injury may cause the apoptosis of cardiomyocytes as well as cardiac fibrosis, which is characterized as the transdifferentiation of fibroblasts to myofibroblasts and collagen deposition. MicroRNAs (miRNAs or miRs) have been demonstrated to be involved in myocardial I/R injury. However, the underlying molecular mechanism remains largely unclear. In the present study, mouse cardiomyocyte M6200 cells were treated with hypoxia/reoxygenation (H/R). Our data indicated that H/R treatment led to cell apoptosis, the increased expression of fibrosis‑related proteins, namely collagen I, II, III, and fibronectin, as well as the downregulation of miR-142-3p in M6200 cells...
November 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28017695/mir-29c-is-implicated-in-the-cardioprotective-activity-of-panax-notoginseng-saponins-against-isoproterenol-induced-myocardial-fibrogenesis
#19
Li Liu, Bingbing Ning, Jingang Cui, Teng Zhang, Yu Chen
ETHNOPHARMACOLOGICAL RELEVANCE: Panax notoginseng (Burkill) F.H. Chen (Araliaceae) has a long history of clinical application in China for the treatment of cardiovascular diseases. Panax notoginseng saponins (PNS) have been proven to be the major cardioprotective substances of Panax notoginseng (Burkill) F.H. Chen (Araliaceae). AIM OF THE STUDY: The current study further investigated the molecular mechanisms associated with the cardioprotective effect of PNS. MATERIALS AND METHODS: C57BL/6J mice were subject to isoproterenol (ISO)-induced myocardial injury in the absence or presence of PNS treatment...
December 22, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27997889/mir-22-may-suppress-fibrogenesis-by-targeting-tgf%C3%AE-r-i-in-cardiac-fibroblasts
#20
Yuan Hong, Huaming Cao, Qiang Wang, Jianlin Ye, Lijun Sui, Jinhua Feng, Xiaojun Cai, Huizhu Song, Xiuhong Zhang, Xichuang Chen
BACKGROUND/AIMS: Cardiac fibrosis after myocardial infarction (MI) has been identified as a key factor in the development of heart failure, but the mechanisms undelying cardiac fibrosis remained unknown. microRNAs (miRNAs) are novel mechanisms leading to fibrotic diseases, including cardiac fibrosis. Previous studies revealed that miR-22 might be a potential target. However, the roles and mechanisms of miR-22 in cardiac fibrosis remained ill defined. The present study thus addressed the impact of miR-22 in cardiac fibrosis...
2016: Cellular Physiology and Biochemistry
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