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https://www.readbyqxmd.com/read/28211229/serum-micrornas-as-predictors-for-liver-fibrosis-staging-in-hepatitis-c-virus-associated-chronic-liver-disease-patients
#1
Olfat G Shaker, Mahmoud A Senousy
Accurate staging of liver fibrosis is important for clinical decision making and personalized management. Liver fibrosis is influenced by patients' genomics, including IFNL3 genotype and microRNA expression. However, incorporating microRNAs into fibrosis prediction algorithms has not been investigated. We examined the potential of 8 selected serum microRNAs; miR-122, miR-126, miR-129, miR-199a, miR-155, miR-203a, miR-221, and miR-223 as non-invasive biomarkers to stage liver fibrosis in HCV-associated chronic liver disease (HCV-CLD)...
February 17, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28164670/prognostic-value-of-expression-of-micrornas-in-non-small-cell-lung-cancer-a-systematic-review-and-meta-analysis
#2
Bingxiang Zhan, Dapeng Lu, Peng Luo, Baolong Wang
BACKGROUND: microRNAs are widely involved in a variety of life processes and considered as potential biomarkers of tumor prognosis. A growing number of studies have documented that miRNAs were associated with outcome in NSCLC patients and can act as a prognostic marker. However, existing studies concerning the relationship between miRNAs and outcome in NSCLC patients were contentious and dispersive. Therefore, a systematic metaanalysis to explore the prognostic value of miRNAs on NSCLC patients is urgently needed...
November 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28143713/intercellular-transfer-of-mir-126-3p-by-endothelial-microparticles-reduces-vascular-smooth-muscle-cell-proliferation-and-limits-neointima-formation-by-inhibiting-lrp6
#3
Felix Jansen, Tobias Stumpf, Sebastian Proebsting, Bernardo S Franklin, Daniela Wenzel, Philipp Pfeifer, Anna Flender, Theresa Schmitz, Xiaoyan Yang, Bernd K Fleischmann, Georg Nickenig, Nikos Werner
BACKGROUND: Vascular smooth muscle cell (VSMC) proliferation is of importance in the pathogenesis of vascular diseases such as restenosis or atherosclerosis. Endothelial microparticles (EMPs) regulate function and phenotype of target endothelial cells (ECs), but their influence on VSMC biology is unknown. We aim to investigate the role of EMPs in the regulation of vascular smooth muscle cell (VSMC) proliferation and vascular remodeling. METHODS AND RESULTS: Systemic treatment of mice with EMPs after vascular injury reduced neointima formation in vivo...
January 28, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28131600/mir-126-overexpression-inhibits-high-glucose-induced-migration-and-tube-formation-of-rhesus-macaque-choroid-retinal-endothelial-cells-by-obstructing-vegfa-and-pik3r2
#4
Wen-Zhi Yang, Jin Yang, Li-Ping Xue, Li-Bo Xiao, Yan Li
AIM: The aims of this study are to investigate the relative regulation between miR-126 and VEGF/PI3K/AKT signaling pathway in retinal vascular endothelial cells. METHODS: Rhesus macaque choroid-retinal endothelial cell line (RF/6A) cells were cultured in high glucose to imitate the conditions occurring in DR. First, we detected the expression of miR-126, VEGFA and PIK3R2 in RF/6A cells on the condition of high glucose by q-PCR and western blot. Then, after addition of miR-126 mimics and miR-126 inhibitor, we investigated the function of miR-126 in RF/6A cells by scratch wound, Transwell migration and tube formation assays, and the effect of miR-126 on the expression of VEGFA, PIK3R2 and AKT...
December 23, 2016: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28124060/bone-morphogenetic-protein-4-regulates-micrornas-mir-494-and-mir-126-5p-in-control-of-endothelial-cell-function-in-angiogenesis
#5
Jennifer S Esser, Erika Saretzki, Franziska Pankratz, Bianca Engert, Sebastian Grundmann, Christoph Bode, Martin Moser, Qian Zhou
MicroRNAs are small non-coding RNAs that negatively regulate posttranscriptional gene expression. Several microRNAs have been described to regulate the process of angiogenesis. Previously, we have shown that bone morphogenetic protein 4 (BMP4) increased the pro-angiogenic activity of endothelial cells. In this project, we now investigated how the pro-angiogenic BMP4 effect is mediated by microRNAs. First, we performed a microRNA array with BMP4-stimulated human umbilical vein endothelial cells (HUVECs). Among the top-regulated microRNAs, we detected a decreased expression of miR-494 and increased expression of miR-126-5p...
January 26, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28112373/protective-role-of-microrna-126-in-intracerebral-hemorrhage
#6
Fangen Kong, Jianhui Zhou, Wenying Zhou, Yuanqing Guo, Guowei Li, Lukun Yang
Intracerebral hemorrhage (ICH) is a disease associated with high mortality and morbidity. MicroRNAs (miRNAs) are important regulators of translation and have been reported to be associated with the pathogenesis of numerous cerebrovascular diseases, including ICH. The present study explored the role of miRNA (miR)‑126 in ICH. Adult male Wistar rats were randomly assigned to ICH model and sham groups. ICH was induced by intracerebral injection of collagenase. The mRNA expression levels of miR‑126 in the two groups were determined...
January 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28105201/comparison-of-microrna-expression-profiles-in-k562-cells-derived-microvesicles-and-parental-cells-and-analysis-of-their-roles-in-leukemia
#7
Xiaomei Chen, Wei Xiong, Huiyu Li
Microvesicles (MVs) are 30-1,000-nm extracellular vesicles that are released from a multitude of cell types and perform diverse cellular functions, including intercellular communication, antigen presentation, and transfer of proteins, messenger RNA and microRNA (also known as miR). MicroRNAs have been demonstrated to be aberrantly expressed in leukemia, and the overall microRNA expression profile may differentiate normal blood cells vs. leukemia cells. MVs containing microRNAs may enable intercellular cross-talk in vivo...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28101763/mir-126-affects-brain-heart-interaction-after-cerebral-ischemic-stroke
#8
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/28100645/lipoxin-a4-stimulates-endothelial-mir-126-5p-expression-and-its-transfer-via-microvesicles
#9
Marilina Codagnone, Antonio Recchiuti, Paola Lanuti, Anna Maria Pierdomenico, Eleonora Cianci, Sara Patruno, Veronica Cecilia Mari, Felice Simiele, Pamela Di Tomo, Assunta Pandolfi, Mario Romano
The proresolution lipid mediator lipoxin (LX)A4 bestows protective bioactions on endothelial cells. We examined the impact of LXA4 on transcellular endothelial signaling via microRNA (miR)-containing microvesicles. We report LXA4 inhibition of MV release by TNF-α-treated HUVECs, associated with the down-regulation of 18 miR in endothelial microvesicles (EMVs) and the up-regulation of miR-126-5p, both in HUVECs and in EMVs. LXA4 up-regulated miR-126-5p by ∼5-fold in HUVECs and promoted a release of microvesicles (LXA4-EMVs) that enhanced miR-126-5p by ∼7-fold in recipient HUVECs...
January 18, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28092102/micrornas-potential-candidates-for-diagnosis-and-treatment-of-colorectal-cancer
#10
REVIEW
Abdullah Moridikia, Hamed Mirzaei, Amirhossein Sahebkar, Jafar Salimian
Colorectal cancer (CRC) is known as the third common cancer worldwide and an important public health problem in different populations. Several genetics and environmental risk factors are involved in the development and progression of CRC including chromosomal abnormalities, epigenetic alterations, and unhealthy lifestyle. Identification of risk factors and biomarkers could lead to a better understanding of molecular pathways involved in CRC pathogenesis. MicroRNAs (miRNAs) are important regulatory molecules which could affect a variety of cellular and molecular targets in CRC...
January 16, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28089917/micrornas-and-dicer1-are-regulated-by-1-25-dihydroxyvitamin-d-in-prostate-stroma
#11
Shweta Dambal, Angeline A Giangreco, Andres M Acosta, Andrew Fairchild, Zachary Richards, Ryan Deaton, Dennis Wagner, Reinhold Vieth, Peter H Gann, Andre Kajdacsy-Balla, Theodorus Van der Kwast, Larisa Nonn
Vitamin D deficiency increases the risk of lethal prostate adenocarcinomas (PCa) and the majority of older men are deficient. Although PCa arises from the epithelium, the surrounding stroma has hormonal regulatory control over the epithelium and contributes to carcinogenesis. Herein, we describe regulation of microRNAs (miRs) by the active hormone dihydroxyvitamin D (1,25(OH)2D) in human prostate stroma. 1,25(OH)2D binds the vitamin D receptor (VDR) transcription factor to regulate gene expression, including miRs, which have emerged as potent regulators of protein expression...
March 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28079186/extracellular-vesicle-mediated-intercellular-communication-at-the-porcine-maternal-fetal-interface-a-new-paradigm-for-conceptus-endometrial-cross-talk
#12
Mallikarjun Bidarimath, Kasra Khalaj, Rami T Kridli, Frederick W K Kan, Madhuri Koti, Chandrakant Tayade
Exosomes and microvesicles are extracellular vesicles released from cells and can contain lipids, miRNAs and proteins that affect cells at distant sites. Recently, microvesicles containing miRNA have been implicated in uterine microenvironment of pigs, a species with unique epitheliochorial (non-invasive) placentation. Here we report a novel role of conceptus-derived exosomes/microvesicles (hereafter referred to as extracellular vesicles; EVs) in embryo-endometrial cross-talk. We also demonstrate the stimulatory effects of EVs (PTr2-Exo) derived from porcine trophectoderm-cells on various biological processes including the proliferation of maternal endothelial cells (PAOEC), potentially promoting angiogenesis...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28076855/microrna-126-reduces-blood-retina-barrier-breakdown-via-the-regulation-of-vcam-1-and-bcl2l11-in-ischemic-retinopathy
#13
Xia Bai, Junpeng Luo, Xiaofeng Zhang, Jingjing Han, Zhaoyue Wang, Jingcheng Miao, Yanyan Bai
To evaluate the role of microRNA-126 (miR-126) in maintaining the integrity of the blood-retina barrier (BRB), we established a mouse model of oxygen-induced retinopathy (OIR) and measured the retinal levels of miR-126 using recombinant plasmid pCMV-MIR or pCMV-MIR-126 intravitreal injections. We also detected VCAM-1 and BCL2L11 levels. Retinal vaso-obliteration, VCAM-1 localization on retinal endothelial cells, the blood-retina vascular permeability or albumin leakage in retinas, TUNEL histology, Evans blue assays, or Western blotting for detecting albumin or tight junction levels in the retina was performed...
January 12, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28074664/recent-advances-in-molecular-biomarkers-for-diabetes-mellitus-a-systematic-review
#14
Ty Lees, Najah Nassif, Ann Simpson, Fatima Shad-Kaneez, Rose Martiniello-Wilks, Yiguang Lin, Allan Jones, Xianqin Qu, Sara Lal
CONTEXT: Diabetes is a growing global metabolic epidemic. Current research is focusing on exploring how the biological processes and clinical outcomes of diabetes are related and developing novel biomarkers to measure these relationships, as this can subsequently improve diagnostic, therapeutic and management capacity. OBJECTIVE: To identify the most recent advances in molecular biomarkers of diabetes and directions that warrant further research. METHODS: Using a systematic search strategy, the MEDLINE, CINAHL and OVID MEDLINE databases were canvassed for articles that investigated molecular biomarkers for diabetes...
January 11, 2017: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/28065883/down-regulation-of-proangiogenic-microrna-126-and-microrna-132-are-early-modulators-of-diabetic-cardiac-microangiopathy
#15
Shruti Rawal, Pujika Emani Munasinghe, Amol Shindikar, Jono Paulin, Vicky Cameron, Patrick Manning, Michael J A Williams, Gregory T Jones, Richard Bunton, Ivor Galvin, Rajesh Katare
AIM: Microangiopathy due to endothelial dysfunction is a major contributing factor to the development of diabetes-induced cardiovascular disease (CVD). Dysregulation of endothelial-specific microRNAs (miRs) is correlated with impaired angiogenesis and cell survival. We investigated the profile of two angiomiRs, miR-126, and miR-132, in the plasma of type 2 diabetic individuals without any known history of CVD as well as in the cardiac tissues collected from diabetics undergoing cardiac surgery...
January 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/27999452/microrna-regulation-of-endothelial-junction-proteins-and-clinical-consequence
#16
REVIEW
Yugang Zhuang, Hu Peng, Victoria Mastej, Weiguo Chen
Cellular junctions play a critical role in structural connection and signal communication between cells in various tissues. Although there are structural and functional varieties, cellular junctions include tight junctions, adherens junctions, focal adhesion junctions, and tissue specific junctions such as PECAM-1 junctions in endothelial cells (EC), desmosomes in epithelial cells, and hemidesmosomes in EC. Cellular junction dysfunction and deterioration are indicative of clinical diseases. MicroRNAs (miRNA) are ~20 nucleotide, noncoding RNAs that play an important role in posttranscriptional regulation for almost all genes...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27993686/microrna-126-suppresses-inflammation-in-endothelial-cells-under-hyperglycemic-condition-by-targeting-hmgb1
#17
Song-Tao Tang, Feng Wang, Min Shao, Yuan Wang, Hua-Qing Zhu
MicroRNA-126(miR-126) targets involved in inflammation need to be identified. In this study, we aim to investigate whether high-mobility group box 1(HMGB1), an inflammation-related gene, is the target of miR-126 in diabetic vascular endothelium. The diabetic apoE(-/-) mice model, a classical diabetic atherosclerosis model, was established. The aorta of diabetic apoE(-/-) mice showed decrease of miR-126 and elevation of HMGB1 and inflammation. Next, we employed several in vitro experiments to address the role of miRNA-126 on the regulation of HMGB1 in endothelial cells under hyperglycemic and inflammatory conditions...
December 18, 2016: Vascular Pharmacology
https://www.readbyqxmd.com/read/27975100/hyperglycemia-suppresses-microrna-expression-in-platelets-to-increase-p2ry12-and-selp-levels-in-type-2-diabetes-mellitus
#18
Zsolt Fejes, Szilárd Póliska, Zsolt Czimmerer, Miklós Káplár, András Penyige, Gabriella Gál Szabó, Ildikó Beke Debreceni, Satya P Kunapuli, János Kappelmayer, Béla Nagy
Megakaryocyte (MK)-derived miRNAs have been detected in platelets. Here, we analysed the expression of platelet and circulating miR-223, miR-26b, miR-126 and miR-140 that might be altered with their target mRNAs in type 2 diabetes mellitus (DM2). MiRNAs were isolated from leukocyte-depleted platelets and plasma samples obtained from 28 obese DM2, 19 non-DM obese and 23 healthy individuals. The effect of hyperglycaemia on miRNAs was also evaluated in MKs using MEG-01 and K562 cells under hyperglycaemic conditions after 8 hours up to four weeks...
December 15, 2016: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/27958650/calmodulin-regulated-spectrin-associated-protein-1-mrna-is-directly-regulated-by-mir-126-in-primary-human-osteoblasts
#19
Sandra Strassburg, Nikita Nabar, Florian Lampert, Sebastian M Goerke, Dietmar Pfeifer, Günter Finkenzeller, G Björn Stark, Filip Simunovic
Vascularization is essential for bone development, fracture healing and bone tissue engineering. We have previously described that coculture of primary human osteoblasts (hOBs) and human umbilical vein endothelial cells (HUVECs) improves differentiation of both cell types. Investigating the role of microRNAs (miRNAs) in this system, we found that miR-126 is highly upregulated in hOBs following coculturing with HUVECs. In this study we performed miR-126 gain-of-function and loss-of-function experiments in hOBs followed by microarray analysis in order to identify targets of miR-126...
December 13, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27951581/micrornas-are-associated-with-uremic-toxicity-cardiovascular-calcification-and-disease
#20
Ziad A Massy, Valérie Metzinger-Le Meuth, Laurent Metzinger
BACKGROUND: Vascular calcification has been recognized to be a major risk factor in chronic kidney disease (CKD) and downstream cardiovascular complications. Micro-RNAs (miRNAs) are small noncoding RNAs comprising 20-25 nucleotides that regulate gene expression by inhibiting or degrading the target mRNA, and constitute potential new biomarkers and future therapeutic strategies. SUMMARY: We tested the relevance of several cardiovascular-specific miRNAs as new biomarkers for CKD, cardiovascular disease, and cardiovascular complications...
2017: Contributions to Nephrology
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