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https://www.readbyqxmd.com/read/28642310/metabolomics-analysis-identifies-sex-associated-metabotypes-of-oxidative-stress-and-the-autotaxin-lysopa-axis-in%C3%A2-copd
#1
Shama Naz, Johan Kolmert, Mingxing Yang, Stacey N Reinke, Muhammad Anas Kamleh, Stuart Snowden, Tina Heyder, Bettina Levänen, David J Erle, C Magnus Sköld, Åsa M Wheelock, Craig E Wheelock
Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease and a leading cause of mortality and morbidity worldwide. The aim of this study was to investigate the sex dependency of circulating metabolic profiles in COPD.Serum from healthy never-smokers (healthy), smokers with normal lung function (smokers), and smokers with COPD (COPD; Global Initiative for Chronic Obstructive Lung Disease stages I-II/A-B) from the Karolinska COSMIC cohort (n=116) was analysed using our nontargeted liquid chromatography-high resolution mass spectrometry metabolomics platform...
June 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28641547/recent-advances-on-the-role-of-micrornas-in-both-insulin-resistance-and-cancer
#2
Adele Vivacqua, Paola De Marco, Antonino Belfiore, Marcello Maggiolini
BACKGROUND: Insulin resistance is a pathological condition characterized by the failure of target cells to uptake and metabolizes glucose in response to insulin. In particular, the elevated concentrations of glucose, insulin and free insulin growth factor-1, which result from insulin resistance, may generate a pro-inflammatory and pro-tumorigenic state. These alterations may underlie the increased risk to develop various types of cancer as well as the worse cancer prognosis observed in obese and diabetic patients...
June 22, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28620300/novel-anti-fibrotic-therapies
#3
REVIEW
Benita L McVicker, Robert G Bennett
Fibrosis is a major player in cardiovascular disease, both as a contributor to the development of disease, as well as a post-injury response that drives progression. Despite the identification of many mechanisms responsible for cardiovascular fibrosis, to date no treatments have emerged that have effectively reduced the excess deposition of extracellular matrix associated with fibrotic conditions. Novel treatments have recently been identified that hold promise as potential therapeutic agents for cardiovascular diseases associated with fibrosis, as well as other fibrotic conditions...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28617563/regulatory-mechanism-of-mir-29-over-tgf-%C3%AE-1-and-col1-in-scar-cells
#4
S Bi, C Cao, L-L Chai, S-R Li, D-Y Yang
OBJECTIVE: To study the regulatory mechanism of miR-29 over TGF-β1 and COL1 in scar cells. PATIENTS AND METHODS: 5 clinical cases of hypertrophic scar (HS) skin and adjacent normal skin tissues were separated into fibroblast for primary culture and subculture before being observed morphologically and standard HE staining under an ordinary optical microscope. RT-PCR method was applied to test the expression level of miR-29, TGF-β1, and COL1 mRNA. ELISA method was applied to test the expression level of extracellular matrix COL1, fibronectin (FN) and α-SMA...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28610780/analysis-of-transcription-factors-micrornas-and-cytokines-involved-in-t-lymphocyte-differentiation-in-patients-with-tuberculosis-after-directly-observed-treatment-short-course
#5
Nancy Elizabeth Corral-Fernández, Juan Diego Cortes-García, Rivas-Santiago Bruno, Silvia Romano-Moreno, Susanna E Medellín-Garibay, Martín Magaña-Aquino, Raúl A Salazar-González, Roberto González-Amaro, Diana Patricia Portales-Pérez
Tuberculosis (Tb) is an infectious disease in which the immune system plays an important role. MicroRNAs are involved in the development and maintenance of CD4 + T lymphocyte subpopulations. miR-326 regulates the differentiation to Th17 cells and miR-29 correlates with the Th1 response. The aim of this study was to determine the role of microRNAs, Transcription Factors, and cytokines in Th differentiation before and after the directly observed treatment short-course (DOTS). Peripheral blood mononuclear cells and serum from Tb patients were collected at times 0 (before therapy), 2 (after the intensive phase), and 6 months (after the holding phase)...
July 2017: Tuberculosis
https://www.readbyqxmd.com/read/28584629/role-of-the-microrna-29-family-in-fibrotic-skin-diseases
#6
Duygu Harmanci, Erdogan Pekcan Erkan, Ayse Kocak, Gul Guner Akdogan
Fibrotic skin diseases are characterized by the accumulation of collagen. The hallmarks of fibrotic skin diseases are unbalanced fibroblast proliferation and differentiation, extracellular matrix production and transforming growth factor-β signalling. Numerous studies have investigated the possibility that microRNAs (miRNAs or miRs) are involved in the pathogenesis of certain fibrotic diseases, including skin, heart, lung and liver diseases. miRNAs are a class of small non-coding RNAs, which modify gene expression by binding to target messenger RNA (mRNA) and blocking the translation or inducing the degradation of target mRNA...
June 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28499250/redox-regulation-of-micrornas-in-endometriosis-associated-pain
#7
Kristeena Ray Wright, Brenda Mitchell, Nalini Santanam
Endometriosis is a chronic, painful condition with unknown etiology. A differential expression of microRNAs in the endometriotic tissues from women with endometriosis with pain compared to those without suggested a plausible role for miRNA or epigenetic mechanisms in the etiology of endometriotic pain. The peritoneal milieu is involved in maintenance of endometriotic lesion and nociception. We recently showed the mechanistic role for oxidized-lipoproteins (ox-LDLs) present in peritoneal fluid (PF) in endometriosis and pain...
August 2017: Redox Biology
https://www.readbyqxmd.com/read/28473324/mir-29b-supplementation-decreases-expression-of-matrix-proteins-and-improves-alveolarization-in-mice-exposed-to-maternal-inflammation-and-neonatal-hyperoxia
#8
Shaheen Durrani-Kolarik, Caylie A Pool, Ashley Gray, Kathryn Marie Heyob, Mary J Cismowski, Gloria S Pryhuber, L James Lee, Zhaogang Yang, Trent E Tipple, Lynette K Rogers
Even with advances in the care of preterm infants, chronic lung disease or bronchopulmonary dysplasia (BPD) continues to be a significant pulmonary complication. Among those diagnosed with BPD, a subset of infants develop severe BPD with disproportionate pulmonary morbidities. In addition to decreased alveolarization, these infants develop obstructive and/or restrictive lung function due to increases in or dysregulation of extracellular matrix proteins. Analyses of plasma obtained from preterm infants during the first week of life indicate that circulating miR-29b is suppressed in infants that subsequently develop BPD, and that decreased circulating miR-29b is inversely correlated with BPD severity...
May 4, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28453699/microrna-related-genetic-variants-in-iron-regulatory-genes-dietary-iron-intake-micrornas-and-lung-cancer-risk
#9
L Zhang, Y Ye, H Tu, M A Hildebrandt, L Zhao, J V Heymach, J A Roth, X Wu
Background: Genetic variations in MicroRNA (miRNA) binding sites may alter structural accessibility of miRNA binding sites to modulate risk of cancer. This large-scale integrative multistage study was aimed to evaluate the interplay of genetic variations in miRNA binding sites of iron regulatory pathway, dietary iron intake and lung cancer (LC) risk. Patients and methods: The interplay of genetic variant, dietary iron intake and LC risk was assessed in large-scale case-control study...
May 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28423652/suppressive-role-exerted-by-microrna-29b-1-5p-in-triple-negative-breast-cancer-through-spin1-regulation
#10
Rosa Drago-Ferrante, Francesca Pentimalli, Daniela Carlisi, Anna De Blasio, Christian Saliba, Shawn Baldacchino, James Degaetano, Joseph Debono, Gordon Caruana-Dingli, Godfrey Grech, Christian Scerri, Giovanni Tesoriere, Antonio Giordano, Renza Vento, Riccardo Di Fiore
MiR-29 family dysregulation occurs in various cancers including breast cancers. We investigated miR-29b-1 functional role in human triple negative breast cancer (TNBC) the most aggressive breast cancer subtype. We found that miR-29b-1-5p was downregulated in human TNBC tissues and cell lines. To assess whether miR-29b-1-5p correlated with TNBC regenerative potential, we evaluated cancer stem cell enrichment in our TNBC cell lines, and found that only MDA-MB-231 and BT-20 produced primary, secondary and tertiary mammospheres, which were progressively enriched in OCT4, NANOG and SOX2 stemness genes...
April 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414804/cyclosporine-a-alters-expression-of-renal-micrornas-new-insights-into-calcineurin-inhibitor-nephrotoxicity
#11
Jennifer L Gooch, Clayton King, Cynthia E Francis, Paul S Garcia, Yun Bai
Calcineurin inhibitors are powerful immunosuppressants that revolutionized organ transplantation. However, non-immune effects of the calcineurin inhibitor, such as cyclosporine A (CsA), have significantly hindered their use. Specifically, nephrotoxicity, which is associated with tubulointerstitial fibrosis, inflammation, and podocyte damage, affects up to half of all transplant patients. Calcineurin is involved in many aspects of kidney development and function; therefore, mechanisms of CsA-induced nephrotoxicity are complex and not yet fully understood...
2017: PloS One
https://www.readbyqxmd.com/read/28404597/altered-mirna-29-expression-in-type-2-diabetes-influences-glucose-and-lipid-metabolism-in-skeletal-muscle
#12
Julie Massart, Rasmus J O Sjögren, Leonidas S Lundell, Jonathan M Mudry, Niclas Franck, Donal J O'Gorman, Brendan Egan, Juleen R Zierath, Anna Krook
MicroRNAs have emerged as important regulators of glucose and lipid metabolism in several tissues, however, their role in skeletal muscle remains poorly characterized. We determined the effects of the miR-29 family on glucose and lipid metabolism, and insulin responsiveness in skeletal muscle. We provide evidence that miR-29a and miR-29c are increased in skeletal muscle from type 2 diabetic patients and decreased following endurance training in healthy young men and in rats. In primary human skeletal muscle cells, inhibition and overexpression strategies demonstrate that miR-29a and miR-29c regulate glucose uptake and insulin-stimulated glucose metabolism...
April 12, 2017: Diabetes
https://www.readbyqxmd.com/read/28368401/circrna_100290-plays-a-role-in-oral-cancer-by-functioning-as-a-sponge-of-the-mir-29-family
#13
L Chen, S Zhang, J Wu, J Cui, L Zhong, L Zeng, S Ge
Circular RNAs (circRNAs) represent a class of non-coding RNAs that are widely expressed in mammals. However, it is largely unknown about the function of human circRNAs and the roles of circRNAs in human oral squamous cell carcinomas (OSCC). Here we performed a comprehensive study of circRNAs in human OSCC using circRNA and mRNA microarrays, and identified many circRNAs that are differentially expressed between OSCC tissue and paired non-cancerous matched tissue. We further found a circRNA termed circRNA_100290 that served as a critical regulator in OSCC development...
April 3, 2017: Oncogene
https://www.readbyqxmd.com/read/28315330/microrna-29-regulates-myocardial-microvascular-endothelial-cells-proliferation-and-migration-in-association-with-igf1-in-type-2-diabetes
#14
Zhenjie Li, Runxia Jiang, Qingcai Yue, Haiying Peng
BACKGROUND: In our study, we investigated the expression and function of microRNA-29 in myocardial microvascular endothelial cells (MMEVC) in type 2 diabetic Goto-Kakizaki (GK) rats. METHODS: MiR-29 gene expression was compared, by qRT-PCR between diabetic GK rat MMEVC and non-diabetic Wistar rat MMEVC. MiR-29 was downregulated in GK MMEVC and its effect on angiogenic properties of proliferation and migration was examined. Potential downstream target gene of miR-29, insulin growth factor 1 (IGF1), was assessed by dual-luciferase reporter assay, qRT-PCR and western blot in GK MMEVC...
May 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28298326/let-7-and-microrna-148-regulate-parathyroid-hormone-levels-in-secondary-hyperparathyroidism
#15
Vitali Shilo, Irit Mor-Yosef Levi, Roy Abel, Aleksandra Mihailović, Gilad Wasserman, Tally Naveh-Many, Iddo Z Ben-Dov
Secondary hyperparathyroidism commonly complicates CKD and associates with morbidity and mortality. We profiled microRNA (miRNA) in parathyroid glands from experimental hyperparathyroidism models and patients receiving dialysis and studied the function of specific miRNAs. miRNA deep-sequencing showed that human and rodent parathyroids share similar profiles. Parathyroids from uremic and normal rats segregated on the basis of their miRNA expression profiles, and a similar finding was observed in humans. We identified parathyroid miRNAs that were dysregulated in experimental hyperparathyroidism, including miR-29, miR-21, miR-148, miR-30, and miR-141 (upregulated); and miR-10, miR-125, and miR-25 (downregulated)...
March 15, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28287884/circulating-mirna29-family-expression-levels-in-patients-with-essential-hypertension-as-potential-markers-for-left-ventricular-hypertrophy
#16
Yuqing Huang, Songtao Tang, Cheng Huang, Jiyan Chen, Jie Li, Anping Cai, Yingqing Feng
OBJECTIVES: The role of microRNAs (miRs,miRNAs) in the pathogenesis of cardiovascular diseases such as hypertension, as well as their diagnostic potential, has recently attracted much attention. However, target-organ damage (TOD) of hypertension remains a substantial challenge due to the lack of specific biomarkers. The present study was undertaken to identify and validate the potential of circulating miRs as novel biomarkers for TOD. METHODS: We assessed the expression levels of miR-29a, miR-29b, and miR-29c in 54 patients with untreated essential hypertension and 30 healthy individuals...
2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28249581/systems-biology-combining-human-and-animal-data-mirna-and-mrna-data-identifies-new-targets-in-ureteropelvic-junction-obstruction
#17
Theofilos Papadopoulos, Audrey Casemayou, Eric Neau, Benjamin Breuil, Cécile Caubet, Denis Calise, Barbara A Thornhill, Magdalena Bachvarova, Julie Belliere, Robert L Chevalier, Panagiotis Moulos, Dimcho Bachvarov, Benedicte Buffin-Meyer, Stéphane Decramer, Françoise Conte Auriol, Jean-Loup Bascands, Joost P Schanstra, Julie Klein
BACKGROUND: Although renal fibrosis and inflammation have shown to be involved in the pathophysiology of obstructive nephropathies, molecular mechanisms underlying evolution of these processes remain undetermined. In an attempt towards improved understanding of obstructive nephropathy and improved translatability of the results to clinical practice we have developed a systems biology approach combining omics data of both human and mouse obstructive nephropathy. RESULTS: We have studied in parallel the urinary miRNome of infants with ureteropelvic junction obstruction and the kidney tissue miRNome and transcriptome of the corresponding neonatal partial unilateral ureteral obstruction (UUO) mouse model...
March 1, 2017: BMC Systems Biology
https://www.readbyqxmd.com/read/28217257/regulation-of-hepatic-microrna-expression-by-hepatocyte-nuclear-factor-4-alpha
#18
Hong Lu, Xiaohong Lei, Jerry Liu, Curtis Klaassen
AIM: To uncover the role of hepatocyte nuclear factor 4 alpha (HNF4α) in regulating hepatic expression of microRNAs. METHODS: Microarray and real-time PCR were used to determine hepatic expression of microRNAs in young-adult mice lacking Hnf4α expression in liver (Hnf4α-LivKO). Integrative genomics viewer software was used to analyze the public chromatin immunoprecipitation-sequencing datasets for DNA-binding of HNF4α, RNA polymerase-II, and histone modifications to loci of microRNAs in mouse liver and human hepatoma cells...
February 8, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28193224/microrna-mir-29-controls-a-compensatory-response-to-limit-neuronal-iron-accumulation-during-adult-life-and-aging
#19
Roberto Ripa, Luca Dolfi, Marco Terrigno, Luca Pandolfini, Aurora Savino, Valeria Arcucci, Marco Groth, Eva Terzibasi Tozzini, Mario Baumgart, Alessandro Cellerino
BACKGROUND: A widespread modulation of gene expression occurs in the aging brain, but little is known as to the upstream drivers of these changes. MicroRNAs emerged as fine regulators of gene expression in many biological contexts and they are modulated by age. MicroRNAs may therefore be part of the upstream drivers of the global gene expression modulation correlated with aging and aging-related phenotypes. RESULTS: Here, we show that microRNA-29 (miR-29) is induced during aging in short-lived turquoise killifish brain and genetic antagonism of its function induces a gene-expression signature typical of aging...
February 13, 2017: BMC Biology
https://www.readbyqxmd.com/read/28185889/microrna-hsa-mir-29b-potentiates-etoposide-toxicity-in-hela-cells-via-down-regulation-of-mcl-1
#20
S Kollinerová, Z Dostál, M Modrianský
Etoposide is commonly used as a monotherapy or in combination with other drugs for cancer treatments. In order to increase the drug efficacy, ceaseless search for novel combinations of drugs and supporting molecules is under way. MiRNAs are natural candidates for facilitating drug effect in various cell types. We used several systems to evaluate the effect of miR-29 family on etoposide toxicity in HeLa cells. We show that miR-29b significantly increases etoposide toxicity in HeLa cells. Because Mcl-1 protein has been recognized as a miR-29 family target, we evaluated downregulation of Mcl-1 protein splicing variant expression induced by miR-29 precursors and confirmed a key role of Mcl-1 protein in enhancing etoposide toxicity...
February 6, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
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