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miRNA expression profiling

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https://www.readbyqxmd.com/read/28086811/study-of-the-microrna-expression-profile-of-foreskin-derived-mesenchymal-stromal-cells-following-inflammation-priming
#1
Hussein Fayyad-Kazan, Mohammad Fayyad-Kazan, Bassam Badran, Dominique Bron, Laurence Lagneaux, Mehdi Najar
BACKGROUND: Due to their self-renewal capacity, multi-lineage potential, and immunomodulatory properties, mesenchymal stromal cells (MSCs) are an attractive tool for different therapeutic strategies. Foreskin (FSK), considered as a biological waste material, has already been shown to be a valuable source of MSCs. Besides their typical fibroblast like morphology and International Society for cellular Therapy compliant phenotype, foreskin-MSCs (FSK-MSCs) are clonogenic, and highly proliferative cells with multi-lineage and strong immunomodulatory capacities...
January 13, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28086788/comprehensive-circrna-expression-profile-and-selection-of-key-circrnas-during-priming-phase-of-rat-liver-regeneration
#2
Lifei Li, Jianlin Guo, Yanhui Chen, Cuifang Chang, Cunshuan Xu
BACKGROUND: Rat liver regeneration (LR) proceeds along a process of highly organized and ordered tissue growth in response to the loss or injury of liver tissue, during which many physiological processes may play important roles. The molecular mechanism of hepatocyte proliferation, energy metabolism and substance metabolism during rat LR had been elucidated. Further, the correlation of circular RNA (circRNA) abundance with proliferation has recently been clarified. However, the regulatory capacity of circRNA in rat LR remains a fascinating topic...
January 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28081568/non-lethal-endotoxin-injection-a-rat-model-of-hypercoagulability
#3
Marjory B Brooks, James R Turk, Abraham Guerrero, Padma K Narayanan, John P Nolan, Elizabeth G Besteman, Dennis W Wilson, Roberta A Thomas, Cindy E Fishman, Karol L Thompson, Heidrun Ellinger-Ziegelbauer, Jennifer B Pierson, April Paulman, Alan Y Chiang, Albert E Schultze
Systemic inflammation co-activates coagulation, which unchecked culminates in a lethal syndrome of multi-organ microvascular thrombosis known as disseminated intravascular coagulation (DIC). We studied an endotoxin-induced inflammatory state in rats to identify biomarkers of hemostatic imbalance favoring hypercoagulability. Intraperitoneal injection of LPS at 15 mg/kg body weight resulted in peripheral leukopenia and widespread neutrophilic sequestration characteristic of an acute systemic inflammatory response...
2017: PloS One
https://www.readbyqxmd.com/read/28078570/micro-rna-expression-in-muscle-and-fiber-morphometry-in-myotonic-dystrophy-type-1
#4
Chiara Fritegotto, Chiara Ferrati, Valentina Pegoraro, Corrado Angelini
We aimed to explore the cellular action of micro-RNAs that are non-coding-RNAs modulating gene expression, whose expression is dysregulated in myotonic dystrophy (DM1). Basic procedure was to measure the levels of muscle-specific myo-miRNAs (miR-1, miR-133a/b, miR-206) in muscle of 12 DM1 patients. Muscle fiber morphometry and a new grading of histopathological severity score were used to compare specific myo-miRNA level and fiber atrophy. We found that the levels of miR-1 and miR-133a/b were significantly decreased, while miR-206 was significantly increased as compared to controls...
January 11, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28078489/identification-and-profiling-of-conserved-and-novel-micrornas-involved-in-oil-and-oleic-acid-production-during-embryogenesis-in-carya-cathayensis-sarg
#5
Zhengjia Wang, Ruiming Huang, Zhichao Sun, Tong Zhang, Jianqin Huang
MicroRNAs (miRNAs) are important regulators of plant development and fruit formation. Mature embryos of hickory (Carya cathayensis Sarg.) nuts contain more than 70% oil (comprising 90% unsaturated fatty acids), along with a substantial amount of oleic acid. To understand the roles of miRNAs involved in oil and oleic acid production during hickory embryogenesis, three small RNA libraries from different stages of embryogenesis were constructed. Deep sequencing of these three libraries identified 95 conserved miRNAs with 19 miRNA*s, 7 novel miRNAs (as well as their corresponding miRNA*s), and 26 potentially novel miRNAs...
January 11, 2017: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/28077374/parallel-microarray-profiling-identifies-erbb4-as-a-determinant-of-cyst-growth-in-adpkd-and-a-prognostic-biomarker-for-disease-progression
#6
Andrew J Streets, Tajdida A Magayr, Linghong Huang, Laura Vergoz, Sandro Rossetti, Roslyn J Simms, Peter C Harris, Dorien J M Peters, Albert Cm Ong
Autosomal Dominant Polycystic Kidney Disease (ADPKD) is the fourth most common cause of end-stage renal disease. The disease course can be highly variable and treatment options are limited. To identify new therapeutic targets and prognostic biomarkers of disease, we conducted parallel discovery microarray profiling in normal and diseased human PKD1 cystic kidney cells. A total of 1515 genes and 5 miRNA were differentially expressed by more than two-fold in PKD1 cells. Functional enrichment analysis identified 30 dysregulated signalling pathways including the epidermal growth factor (EGF) receptor pathway...
January 11, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28077372/extracellular-microrna-signature-in-chronic-kidney-disease
#7
Jagdeesan Muralidharan, Ali Ramezani, Monica J Hubal, Susan Knoblach, Shashi Shrivastav, Sara Karandish, Richard Scott, Nirmal Maxwell, Savas Ozturk, Srinivasan Beddhu, Jeffrey B Kopp, Dominic S Raj
MicroRNAs (miRNAs) are noncoding RNAs that regulate post-transcriptional gene expression. In this study we characterized the circulating and urinary miRNA pattern associated with reduced glomerular filtration rate using Affymetrix GeneChip miR 4.0 in 28 patients with chronic kidney disease (CKD). Top miRNA discoveries from the human studies were validated in an Alb/TGF-β mouse model of CKD, and in rat renal proximal tubular cells (NRK52E) exposed to TGF-β1. Plasma and urinary levels of procollagen III N-terminal propeptide and collagen IV were elevated in patients with decreased estimated glomerular filtration rate (eGFR)...
January 11, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28077310/zebrafish-let-7b-acts-downstream-of-hypoxia-inducible-factor-1%C3%AE-to-assist-in-hypoxia-mediated-cell-proliferation-and-cell-cycle-regulation
#8
Chun-Xiao Huang, Nan Chen, Xin-Jie Wu, Yan He, Cui-Hong Huang, Hong Liu, Wei-Min Wang, Huan-Ling Wang
AIMS: Hypoxia-inducible factor-1α (HIF-1α) is a transcriptional regulator of cellular responses to hypoxic stress. MicroRNAs (miRNAs) play an essential role in hypoxia-mediated cellular responses. Previous studies have identified some let-7 family members as hypoxia-regulated miRNAs (HRMs). In the present study, we aimed to investigate whether zebrafish let-7b/7f contribute cellular hypoxic response in a Hif-1α-dependent manner. MAIN METHODS: Stable suppression of zebrafish hif-1α was achieved by microinjection of an optimized short-hairpin RNA (shRNA) expression vector...
January 8, 2017: Life Sciences
https://www.readbyqxmd.com/read/28076679/molecular-dynamics-simulations-for-deciphering-structural-basis-of-recognition-of-pre-let-7-mirnas-by-lin28
#9
Chhaya Sharma, Debasisa Mohanty
LIN28 protein inhibits biogenesis of miRNAs belonging to let-7 family by binding to precursor forms of miRNAs. Over expression of LIN28 and low levels of let-7 miRNAs are associated with several forms of cancer cells. We have performed multiple explicit solvent molecular dynamics simulations ranging from 200 to 500 ns in length on different isoforms of preE-let7 in complex with LIN28 and also in isolation to identify structural features and key specificity determining residues (SDR) important for inhibitory role of LIN28...
January 11, 2017: Biochemistry
https://www.readbyqxmd.com/read/28075448/microarray-analysis-of-circular-rna-expression-patterns-in-polarized-macrophages
#10
Yingying Zhang, Yao Zhang, Xueqin Li, Mengying Zhang, Kun Lv
Circular RNAs (circRNAs) are generated from diverse genomic locations and are a new player in the regulation of post-transcriptional gene expression. Recent studies have revealed that circRNAs play a crucial role in fine-tuning the level of microRNA (miRNA)-mediated regulation of gene expression by sequestering miRNAs. The interaction of circRNAs with disease-associated miRNAs suggests that circRNAs are important in the pathology of disease. However, the effects and roles of circRNAs in macrophage polarization have yet to be explored...
January 11, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28074846/novel-blood-based-microrna-biomarker-panel-for-early-diagnosis-of-chronic-pancreatitis
#11
Lei Xin, Jun Gao, Dan Wang, Jin-Huan Lin, Zhuan Liao, Jun-Tao Ji, Ting-Ting Du, Fei Jiang, Liang-Hao Hu, Zhao-Shen Li
Chronic pancreatitis (CP) is an inflammatory disease characterized by progressive fibrosis of pancreas. Early diagnosis will improve the prognosis of patients. This study aimed to obtain serum miRNA biomarkers for early diagnosis of CP. In the current study, we analyzed the differentially expressed miRNAs (DEmiRs) of CP patients from Gene Expression Omnibus (GEO), and the DEmiRs in plasma of early CP patients (n = 10) from clinic by miRNA microarrays. Expression levels of DEmiRs were further tested in clinical samples including early CP patients (n = 20), late CP patients (n = 20) and healthy controls (n = 18)...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28073899/paper-based-microrna-expression-profiling-from-plasma-and-circulating-tumor-cells
#12
Sai Mun Leong, Karen Mei-Ling Tan, Hui Wen Chua, Mo-Chao Huang, Wai Chye Cheong, Mo-Huang Li, Steven Tucker, Evelyn Siew-Chuan Koay
BACKGROUND: Molecular characterization of circulating tumor cells (CTCs) holds great promise for monitoring metastatic progression and characterizing metastatic disease. However, leukocyte and red blood cell contamination of routinely isolated CTCs makes CTC-specific molecular characterization extremely challenging. METHODS: Here we report the use of a paper-based medium for efficient extraction of microRNAs (miRNAs) from limited amounts of biological samples such as rare CTCs harvested from cancer patient blood...
January 10, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28073746/mirdis-a-web-tool-for-endogenous-and-exogenous-microrna-discovery-based-on-deep-sequencing-data-analysis
#13
Hanyuan Zhang, Bruno Vieira Resende E Silva, Juan Cui
Small RNA sequencing is the most widely used tool for microRNA (miRNA) discovery, and shows great potential for the efficient study of miRNA cross-species transport, i.e., by detecting the presence of exogenous miRNA sequences in the host species. Because of the increased appreciation of dietary miRNAs and their far-reaching implication in human health, research interests are currently growing with regard to exogenous miRNAs bioavailability, mechanisms of cross-species transport and miRNA function in cellular biological processes...
January 10, 2017: Briefings in Bioinformatics
https://www.readbyqxmd.com/read/28073061/the-significance-of-micrornas-in-the-course-of-rdd
#14
Kinga Bobińska, Janusz Szemraj, Joanna Mossakowska-Wójcik, Piotr Gałecki, Monika Talarowska
BACKGROUND: In recent years, special attention in genetic studies dedicated to the development of various diseases, including mental disorders, has been paid to micro ribonucleic acids (miRNA, microRNA). As an object of our analysis we have selected the miRNAs which - due to the profile of their activity - may be significant in the aetiology and course of recurrent depressive disorders, i.e. miRNA-370, miRNA-411, miRNA-433, miRNA-487b and miRNA-539. METHODS: The examined population included 138 patients suffering from depression and 95 individuals from the control group (CG)...
October 14, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28072866/the-regulatory-roles-of-microrna-in-effects-of-2-2-4-4-tetrabromodiphenyl-ether-bde47-on-the-transcriptome-of-zebrafish-larvae
#15
Jing Zhao, Ting Xu, Daqiang Yin, Bo Zhang, Jianfeng Bai
The developmental neurotoxicity caused by environmental pollutants has received great concern; however, there were still barely known about the underlying toxic mechanisms, especially the influence of varieties of regulatory factors such as microRNA (miRNA). A representative flame retardant, 2,2',4,4'-tetrabromodiphenyl ether (BDE47), was found to disrupt zebrafish development in visual perception and bone formation in previous study, thus here we investigated its effects on miRNA expression profiling of 6 days post fertilization (dpf) zebrafish larvae by deep sequencing...
2017: PloS One
https://www.readbyqxmd.com/read/28072703/screening-the-key-micrornas-and-transcription-factors-in-prostate-cancer-based-on-microrna-functional-synergistic-relationships
#16
Fan Feng, Jitao Wu, Zhenli Gao, Shengqiang Yu, Yuanshan Cui
Prostate cancer (PC) is a common neoplasm, and metastatic PC remains incurable. The study aims to screen key microRNAs (miRNAs) and transcription factors (TFs) involved in PC.The miRNA expression profile dataset (GSE45604) was downloaded from Gene Expression Omnibus database, including 50 PC and 10 normal specimens. Differentially expressed miRNAs (DEmiRNAs) were identified through limma package in R, and DEmiRNA-DEmiRNA co-regulation network was constructed based on the number of co-regulated target genes...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28071834/molecular-profiling-of-human-ips-derived-hypothalamic-neurons-provides-developmental-insights-to-genetic-loci-for-body-weight-regulation
#17
Li Yao, Yuanhang Liu, Zhifang Qiu, Satish Kumar, Joanne E Curran, John Blangero, Yidong Chen, Donna M Lehman
BACKGROUND/OBJECTIVES: Recent data suggests that common genetic risk for metabolic disorders such as obesity may be human-specific and exert effects through the central nervous system. To overcome the limitation of human tissue access for study, we have generated induced human pluripotent stem cell (hiPSC)-derived neuronal cultures which recapture many features of hypothalamic neurons within the arcuate nucleus. Here we have comprehensively characterized this model across development, benchmarked these neurons to in vivo events, and demonstrate a link between obesity risk variants and hypothalamic development...
January 10, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28071724/osteoclastic-mir-214-targets-traf3-to-contribute-to-osteolytic-bone-metastasis-of-breast-cancer
#18
Jin Liu, Defang Li, Lei Dang, Chao Liang, Baosheng Guo, Cheng Lu, Xiaojuan He, Hilda Y S Cheung, Bing He, Biao Liu, Fangfei Li, Jun Lu, Luyao Wang, Atik Badshah Shaikh, Feng Jiang, Changwei Lu, Songlin Peng, Zongkang Zhang, Bao-Ting Zhang, Xiaohua Pan, Lianbo Xiao, Aiping Lu, Ge Zhang
The role of osteoclastic miRNAs in regulating osteolytic bone metastasis (OBM) of breast cancer is still underexplored. Here, we examined the expression profiles of osteoclastogenic miRNAs in human bone specimens and identified that miR-214-3p was significantly upregulated in breast cancer patients with OBM. Consistently, we found increased miR-214-3p within osteoclasts, which was associated with the elevated bone resorption, during the development of OBM in human breast cancer xenografted nude mice (BCX). Furthermore, genetic ablation of osteoclastic miR-214-3p in nude mice prevent the development of OBM...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28067858/analysis-of-microrna-expression-profiling-involved-in-mc-lr-induced-cytotoxicity-by-high-throughput-sequencing
#19
Junguo Ma, Yuanyuan Li, Lan Yao, Xiaoyu Li
In recent years, microRNAs (miRNAs) in toxicology have attracted great attention. However, the underlying mechanism of miRNAs in the cytotoxicity of microcystin-LR (MC-LR) is lacking. The objective of this study is to analyze miRNA profiling in HepG2 cells after 24 h of MC-LR-exposure to affirm whether and how miRNAs were involved in the cytotoxicity of MC-LR. The results showed that totally 21 and 37 miRNAs were found to be significantly altered in the MC-LR treated cells at concentrations of 10 and 50 μM, respectively, when compared to the control cells...
January 7, 2017: Toxins
https://www.readbyqxmd.com/read/28067602/mirnas-in-cerebrospinal-fluid-identify-patients-with-ms-and-specifically-those-with-lipid-specific-oligoclonal-igm-bands
#20
Ester Quintana, Francisco José Ortega, René Robles-Cedeño, María Luisa Villar, Maria Buxó, Josep Maria Mercader, José Carlos Alvarez-Cermeño, Neus Pueyo, Héctor Perkal, José Manuel Fernández-Real, Lluís Ramió-Torrentà
BACKGROUND: MicroRNAs (miRNAs) are non-coding RNAs that regulate cellular processes by controlling protein translation and mRNA degradation. OBJECTIVE: We aimed to explore the miRNA signature of multiple sclerosis (MS) patients versus controls and the possibility that patients with lipid-specific oligolconal IgM bands (LS_OCMB), a predictor of a more severe disease course, may have a distinct profile. METHODS: An extensive profile of 754 miRNAs was evaluated in the cerebrospinal fluid (CSF) of 14 women using TaqMan low-density arrays...
January 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
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