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https://www.readbyqxmd.com/read/28809453/a-meta-analysis-micrornas-prognostic-function-in-patients-with-nonsmall-cell-lung-cancer
#1
REVIEW
Na Yu, Qingjun Zhang, Qing Liu, Jiayu Yang, Sheng Zhang
Accumulating papers have demonstrated that microRNAs play an important role in the progression of lung cancer, mainly as oncogenic and tumor suppressive. Therefore, microRNAs may influence the survival of lung cancer patients. In this meta-analysis, we evaluated the role of microRNAs in affecting the overall survival in nonsmall cell lung cancer (NSCLC) patients, which may provide valuable information for the treatment of nonsmall cell lung cancer. We used keywords to retrieve literatures from online databases PUBMED, EMBASE and Web of Science and included 12 studies into our investigation according to pre-set criteria...
August 15, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28768505/tough-decoy-targeting-of-predominant-let-7-mirna-species-in-adult-human-hematopoietic-cells
#2
Jaira F de Vasconcellos, Colleen Byrnes, Y Terry Lee, Joshua M Allwardt, Megha Kaushal, Antoinette Rabel, Jeffery L Miller
BACKGROUND: In humans, the heterochronic cascade composed of the RNA-binding protein LIN28 and its major target, the let-7 family of microRNAs (miRNAs), is highly regulated during human erythroid ontogeny. Additionally, down-regulation of the let-7 miRNAs in cultured adult CD34(+) cells or the over-expression of LIN28 in cultured erythrocytes from pediatric patients with HbSS genotype causes increased levels of fetal hemoglobin (HbF) in the range of 19-40% of the total. Therefore, we hypothesized that focused targeting of individual let-7 miRNA family members would exhibit regulatory effect on HbF expression in human adult erythroblasts...
August 2, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28765595/integration-of-mirna-and-mrna-expression-profiles-reveals-microrna-regulated-networks-during-muscle-wasting-in-cardiac-cachexia
#3
Leonardo N Moraes, Geysson J Fernandez, Ivan J Vechetti-Júnior, Paula P Freire, Rodrigo W A Souza, Rolando A R Villacis, Silvia R Rogatto, Patricia P Reis, Maeli Dal-Pai-Silva, Robson F Carvalho
Cardiac cachexia (CC) is a common complication of heart failure (HF) associated with muscle wasting and poor patient prognosis. Although different mechanisms have been proposed to explain muscle wasting during CC, its pathogenesis is still not understood. Here, we described an integrative analysis between miRNA and mRNA expression profiles of muscle wasting during CC. Global gene expression profiling identified 1,281 genes and 19 miRNAs differentially expressed in muscle wasting during CC. Several of these deregulated genes are known or putative targets of the altered miRNAs, including miR-29a-3p, miR-29b-3p, miR-210-5p, miR-214, and miR-489...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28745212/mirna-based-therapeutic-strategy-in-lung-cancer
#4
Guang Li, Jing Fang, Ying Wang, Hu Wang, Cheng-Cao Sun
Lung cancer is one of the most common malignant tumors in the world. Although advanced therapies have been applied for the treatment of lung cancer, the prolongation of overall survival is limited due to treatment resistance. MicroRNAs (miRNAs) are a class of small non-coding, endogenous RNA molecules (about 19-23 nucleotides in length), which could regulate numerous human genes and play key roles in a variety of diseases. MiRNAs are dysregulated in lung cancer and participate in tumor initiation, development and drug resistance...
July 25, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28743334/-expressions-of-microrna-127-5p-in-bronchoalveolar-lavage-fluid-of-patients-with-severe-pneumonia-and-its-diagnostic-value
#5
Zhaojun Wang, Qinfu Liu, Xiaohong Wang, Yanbo Wang, Jun Zhang, Wenjie Zhou, Xiaojun Yang
OBJECTIVE: To observe differential expressions of microRNA-127-5p (miR-127-5p) in bronchoalveolar lavage fluid (BALF) of patients with severe pneumonia and the value of miR-127-5p in the diagnosis of severe pneumonia. METHODS: Thirty severe pneumonia patients and 10 non-respiratory infection patients who needed mechanical ventilation after surgery admitted to Department of Critical Care Medicine of General Hospital of Ningxia Medical University from January to December in 2015 were enrolled, whose specimens of BALF were collected...
July 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28719617/microrna-155-deficiency-leads-to-decreased-autoantibody-levels-and-reduced-severity-of-nephritis-and-pneumonitis-in-pristane-induced-lupus
#6
Harald Leiss, Wilhelm Salzberger, Barbara Jacobs, Irina Gessl, Nicolas Kozakowski, Stephan Blüml, Antonia Puchner, Attila Kiss, Bruno K Podesser, Josef S Smolen, Georg H Stummvoll
OBJECTIVE: We herein examine the role of endogenous miR155 in the development of systemic manifestations in pristane induced lupus. MATERIALS AND METHODS: Systemic lupus in miR155-deficient and wild type mice was induced upon injection of pristane and analyzed after 8 months, PBS-injected mice served as controls. Glomerulonephritis and pneumonitis were quantified using the kidney biopsy score and a newly adapted histomorphometric image analysis system; lung tissue was further analyzed by tissue cytometry...
2017: PloS One
https://www.readbyqxmd.com/read/28713998/identification-of-micrornas-in-acute-respiratory-distress-syndrome-based-on-microrna-expression-profile-in-rats
#7
Yinghui Guan, Xiang Jin, Xingang Liu, Yuanping Huang, Man Wang, Xiaodan Li
Acute respiratory distress syndrome (ARDS) remains a severe disease associated with an ~40% mortality rate and as many as 200,000 new cases annually. MicroRNAs (miRNAs) have important roles in gene regulation and cancer development. The present study aimed to identify the potential roles of miRNAs in the pathogenesis and progression of ARDS. The miRNA expression profile of the GSE57223 dataset was downloaded from the Gene Expression Omnibus database. Following data normalization, differentially expressed miRNAs were identified using the t‑test method...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28707489/evaluation-of-microrna-responses-in-arpe-19-cells-against-the-oxidative-stress
#8
Lokman Ayaz, Erdem Dinç
PURPOSE: This study aimed to determine microRNA (miRNA) expression profile of human retinal pigment epithelium cell (ARPE-19) against the oxidative stress induced by hydrogen peroxide (H2O2). METHODS: ARPE-19 cells were incubated with different concentrations of H2O2 (200, 600 and 800 µM) for 18 hours, and then cell viability, vascular endothelial growth factor levels and total oxidant status were evaluated. Expressions of 1152 miRNA were determined by quantitative Real-Time PCR in each group...
July 14, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/28698160/investigating-the-regulatory-roles-of-the-micrornas-and-the-argonaute-1-enriched-small-rnas-in-plant-metabolism
#9
Jingping Qin, Zhonghai Tang, Xiaoxia Ma, Yijun Meng
The biological roles of small RNAs (sRNAs) in metabolic processes are emerging. However, a systemic study is needed to investigate the wide-spread involvement of the sRNAs in plant metabolism. By using the metabolism-related transcripts retrieved from the public database Plant Metabolic Network, and the publicly available sRNA high-throughput sequencing data, large-scale target identification was performed for microRNAs (miRNAs) and Argonaute 1 (AGO1)-enriched sRNAs in Arabidopsis (Arabidopsis thaliana) and rice (Oryza sativa)...
July 8, 2017: Gene
https://www.readbyqxmd.com/read/28693796/regulatory-effects-of-berberine-on-micrornome-in-cancer-and-other-conditions
#10
REVIEW
Seyed Hasan Ayati, Badrieh Fazeli, Amir Abbas Momtazi-Borojeni, Arrigo F G Cicero, Matteo Pirro, Amirhossein Sahebkar
Berberine (BBR) is an isoquinoline alkaloid found in different plant families such as Berberidaceae, Ranunculaceae, and Papaveraceae. BBR is well-known for its anti-inflammatory, lipid-modifying, anticancer, anti-diabetic, antibacterial, antiparasitic and fungicide activities. Multiple pharmacological actions of BBR stem from different molecular targets of this phytochemical. MicroRNAs (miRs) are single-stranded, evolutionary conserved, small non-coding RNA molecules with a length of 19-23 nucleotides that are involved in RNA silencing and post-transcriptional regulation of gene expression through binding to the 3'-untranslated region (3'UTR) of target mRNA...
August 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28693263/role-of-microrna-296-3p-in-the-malignant-transformation-of-sinonasal-inverted-papilloma
#11
Tomohiko Kakizaki, Hiromitsu Hatakeyama, Yuji Nakamaru, Dai Takagi, Takatsugu Mizumachi, Tomohiro Sakashita, Satoshi Kano, Akihiro Homma, Satoshi Fukuda
Inverted papilloma (IP) is a benign tumor occurring in the nasal cavity and paranasal sinuses. It is reported that 5-15% of IPs undergo malignant transformation into squamous cell carcinoma (SCC), and the role of microRNAs (miRNA/miR) in this process remains to be elucidated. In the present study, whole miRNA profiles using samples of IP and SCC were investigated, in order to detect the function of miRNA in the carcinogenesis of IP. Samples from IPs (n=5) and SCC lesions (n=5), which arose from IPs, were used for miRNA analysis...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28690395/an-assessment-of-database-validated-microrna-target-genes-in-normal-colonic-mucosa-implications-for-pathway-analysis
#12
Martha L Slattery, Jennifer S Herrick, John R Stevens, Roger K Wolff, Lila E Mullany
BACKGROUND: Determination of functional pathways regulated by microRNAs (miRNAs), while an essential step in developing therapeutics, is challenging. Some miRNAs have been studied extensively; others have limited information. In this study, we focus on 254 miRNAs previously identified as being associated with colorectal cancer and their database-identified validated target genes. METHODS: We use RNA-Seq data to evaluate messenger RNA (mRNA) expression for 157 subjects who also had miRNA expression data...
2017: Cancer Informatics
https://www.readbyqxmd.com/read/28685435/hypoxia-related-tumor-acidosis-affects-microrna-expression-pattern-in-prostate-and-breast-tumor-cells
#13
A Riemann, S Reime, O Thews
MicroRNAs (miRNAs) are small non-coding RNA sequences which are able to modulate the expression of many functional proteins. The expression level of miRNAs can be modulated by parameters of the tumor microenvironment like hypoxia, nutrient deprivation or oxidative stress. Since miRNAs can act either as oncogenes or tumor suppressors, this may affect malignant progression or therapy resistance. In the present study it was analyzed whether extracellular acidosis can impact on miRNA expression. Therefore, tumor cells (R3327-AT-1 prostate and Walker-256 mammary carcinoma cells) were incubated at pH 6...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28664568/circulating-microrna-in-patients-with-repaired-tetralogy-of-fallot
#14
Clare T M Lai, Enders K O Ng, Pak-Cheong Chow, Ava Kwong, Yiu-Fai Cheung
BACKGROUND: Emerging data suggest that heart-related microRNAs (miRs) may serve as circulating biomarkers of myocardial injury. We aimed to determine the circulating profile of miRs in patients with volume-overloaded right ventricles after repair of tetralogy (TOF). MATERIALS AND METHODS: A total of 104 TOF patients and 70 controls were recruited. The study was conducted in two phases: (1) determination of circulating heart-related miRs described in left heart diseases (miR-1, miR-133a, miR-208a, miR-208b and miR423-5p) by quantitative real-time PCR in 49 patients and 30 controls and followed by validation in an independent cohort of 55 patients and 40 controls; (2) expression profiling of serum samples from eight patients and eight controls, followed by validation...
June 29, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28663230/tissue-specific-microrna-expression-patterns-in-four-types-of-kidney-disease
#15
Maria Angeles Baker, Seth J Davis, Pengyuan Liu, Xiaoqing Pan, Anna Marie Williams, Kenneth A Iczkowski, Sean T Gallagher, Kaylee Bishop, Kevin R Regner, Yong Liu, Mingyu Liang
MicroRNAs contribute to the development of kidney disease. Previous analyses of microRNA expression in human kidneys, however, were limited by tissue heterogeneity or the inclusion of only one pathologic type. In this study, we used laser-capture microdissection to obtain glomeruli and proximal tubules from 98 human needle kidney biopsy specimens for microRNA expression analysis using deep sequencing. We analyzed specimens from patients with diabetic nephropathy (DN), FSGS, IgA nephropathy (IgAN), membranoproliferative GN (MPGN) (n=19-23 for each disease), and a control group (n=14)...
June 29, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28662367/inhibition-of-the-mir-17-92-cluster-separates-stages-of-palatogenesis
#16
R J Ries, W Yu, N Holton, H Cao, B A Amendt
The role that noncoding regions of the genome play in the etiology of cleft palate is not well studied. A novel method of microRNA (miR) inhibition that allows for specific miR knockdown in vivo has been developed by our laboratory. To further understand the role of miRs in palatogenesis, we used a new mouse model to inhibit specific miRs within the miR-17-92 cluster. Transgenic mice expressing inhibitory complexes for miR-17 and miR-18 manifested a clefting phenotype that was distinct from that observed in mice carrying inhibitory complexes for miR-17, miR-18, miR-19, and miR-92...
June 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28658668/prognostic-value-of-micrornas-in-gastric-cancer-a-meta-analysis
#17
Yue Zhang, Dong-Hui Guan, Rong-Xiu Bi, Jin Xie, Chuan-Hua Yang, Yue-Hua Jiang
BACKGROUND: Previous articles have reported that expression levels of microRNAs (miRNAs) are associated with survival time of patients with gastric cancer (GC). A systematic review and meta-analysis was performed to study the outcome of it. DESIGN: Meta-analysis. METHODS: English studies estimating expression levels of miRNAs with any of survival curves in GC were identified up till March 19, 2017 through performing online searches in PubMed, EMBASE, Web of Science and Cochrane Database of Systematic Reviews by two authors independently...
June 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28655202/small-rna-activity-in-archaeological-barley-shows-novel-germination-inhibition-in-response-to-environment
#18
Oliver Smith, Sarah A Palmer, Alan J Clapham, Pamela Rose, Yuan Liu, Jun Wang, Robin G Allaby
The recovery of ancient RNA from archaeological material could enable the direct study of micro-evolutionary processes. Small RNAs are a rich source of information because their small size is compatible with biomolecular preservation, and their roles in gene regulation make them likely foci of evolutionary change. We present here the small RNA fraction from a sample of archaeological barley generated using high-throughput sequencing that has previously been associated with localised adaptation to drought. Its microRNA profile is broadly similar to 19 globally distributed modern barley samples with the exception of three microRNAs (miRNA159, miRNA319, and miR396), all of which are known to have variable expression under stress conditions...
June 24, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28652588/identification-of-jak-stat-signaling-involvement-in-sarcoidosis-severity-via-a-novel-microrna-regulated-peripheral-blood-mononuclear-cell-gene-signature
#19
Tong Zhou, Nancy Casanova, Nima Pouladi, Ting Wang, Yves Lussier, Kenneth S Knox, Joe G N Garcia
Sarcoidosis is a granulomatous lung disorder of unknown cause. The majority of individuals with sarcoidosis spontaneously achieve full remission (uncomplicated sarcoidosis), however, ~20% of sarcoidosis-affected individuals experience progressive lung disease or cardiac and nervous system involvement (complicated sarcoidosis). We investigated peripheral blood mononuclear cell (PBMC) microRNA and protein-coding gene expression data from healthy controls and patients with uncomplicated or complicated sarcoidosis...
June 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28643872/circulating-microrna-as-candidates-for-early-embryonic-viability-in-cattle
#20
K G Pohler, J A Green, L A Moley, S Gunewardena, W T Hung, R R Payton, X Hong, L K Christenson, T W Geary, M F Smith
Blood-borne extracellular vesicles (i.e. exosomes and microvesicles) carrying microRNAs (miRNAs) could make excellent biomarkers of disease and different physiologic states, including pregnancy status. We tested the hypothesis that circulating extracellular vesicle-derived miRNAs might differentiate the pregnancy status of cows that had maintained pregnancy to Day 30 from non-pregnant cows or from those that exhibited embryonic mortality between Days 17-30 of gestation. Cows were randomly assigned for artificial insemination with fertile semen (n= 36) or dead semen (n = 8; control group) on Day 0 (day of estrus)...
June 23, 2017: Molecular Reproduction and Development
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