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https://www.readbyqxmd.com/read/28806401/a-gdf15-3-utr-variant-rs1054564-results-in-allele-specific-translational-repression-of-gdf15-by-hsa-mir-1233-3p
#1
Ming-Sheng Teng, Lung-An Hsu, Shu-Hui Juan, Wen-Chi Lin, Ming-Cheng Lee, Cheng-Wen Su, Semon Wu, Yu-Lin Ko
Growth differentiation factor 15 (GDF15) is a strong predictor of cardiovascular events and mortality in individuals with or without cardiovascular diseases. Single nucleotide polymorphisms (SNPs) in microRNA (miRNA) target sites, also known as miRSNPs, are known to enhance or weaken miRNA-mRNA interactions and have been linked to diseases such as cardiovascular disease and cancer. In this study, we aimed to elucidate the functional significance of the miRSNP rs1054564 in regulating GDF15 levels. Two rs1054564-containing binding sites for hsa-miR-873-5p and hsa-miR-1233-3p were identified in the 3' untranslated region (UTR) of the GDF15 transcript using bioinformatics tools...
2017: PloS One
https://www.readbyqxmd.com/read/28800318/mir-513c-suppresses-neuroblastoma-cell-migration-invasion-and-proliferation-through-direct-targeting-glutaminase-gls
#2
Hong-Liang Xia, Yao Lv, Chun-Wei Xu, Ming-Cui Fu, Ting Zhang, Xiang-Ming Yan, Shu Dai, Qian-Wei Xiong, Yun Zhou, Jian Wang, Xu Cao
Neuroblastoma is a brain malignancy of childhood and accounts for 7-10% of childhood cancers, leading to approximately 15% of pediatric cancer deaths. MicroRNAs (miRNAs) are a family of short (about 18-25 nucleotides), noncoding and single stranded endogenous RNAs, which complementarily bind to the 3' untranslated regions of their target genes. Recently, glutamine metabolism has been recognized as an important nutrition source for tumor cells, and hence targeting glutamine metabolism could benefit to development of anti-cancer agents...
July 2, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28796841/single-cell-qpcr-reveals-that-additional-hand2-and-microrna-1-facilitate-the-early-reprogramming-progress-of-seven-factor-induced-human-myocytes
#3
Emre Bektik, Adrienne Dennis, Prateek Prasanna, Anant Madabhushi, Ji-Dong Fu
The direct reprogramming of cardiac fibroblasts into induced cardiomyocyte (CM)-like cells (iCMs) holds great promise in restoring heart function. We previously found that human fibroblasts could be reprogrammed toward CM-like cells by 7 reprogramming factors; however, iCM reprogramming in human fibroblasts is both more difficult and more time-intensive than that in mouse cells. In this study, we investigated if additional reprogramming factors could quantitatively and/or qualitatively improve 7-factor-mediated human iCM reprogramming by single-cell quantitative PCR...
2017: PloS One
https://www.readbyqxmd.com/read/28782785/role-of-phytochemicals-in-the-modulation-of-mirna-expression-in-cancer
#4
REVIEW
Trishna Debnath, Narayan Chandra Deb Nath, Eun-Kyung Kim, Kwang-Geun Lee
MicroRNAs (miRNAs) are single-stranded non-coding endogenous RNAs linked with normal developmental and physiological processes. Recent studies have demonstrated that the dysregulation of miRNAs plays an important role in the beginning, progression, and metastasis of many cancers. Additionally, they are involved in the regulation of the epithelial-to-mesenchymal transition (EMT) in many cancer cells. Several studies have suggested that phytochemicals play an important role in the modulation of miRNA expression, which is related to changes in oncogenes, tumour suppressors, and cancer-related protein expression...
August 7, 2017: Food & Function
https://www.readbyqxmd.com/read/28782354/a-novel-ternary-electrochemiluminescence-system-based-on-rubrene-microrods-as-luminophore-and-pt-nanomaterials-as-coreaction-accelerator-for-ultrasensitive-detection-of-microrna-from-cancer-cells
#5
Jia-Li Liu, Zhi-Ling Tang, Ying Zhuo, Yaqin Chai, Ruo Yuan
As the only endogenous co-reactant in ECL system, the dissolved O2 was the ideal candidate due to the mild reaction and easy operation, but compared to S2O82-, the dissolved O2 with weaker redox activity suffers from the poor enhancement effect of luminophore, which restricted the further application in bioanalysis. Here, a high-intense ECL signal was gained by the employing of Pt nanomaterials as co-reaction accelerator to generate more intermediate of dissolved O2 to promote the co-reaction efficiency. Based on a new ternary ECL system of Pt nanomaterials as the co-reaction accelerator, dissolved O2 as co-reactant, and a neotype rubrene microrods as luminophore, an efficient "on-off-on" solid-state ECL switch platfrom was designed for ultrasensitive microRNA (miRNA) detection with a background reduction strategy of ferrocene-labeled single-stranded DNA (Fc-DNA) as a quencher...
August 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28754174/rnai-therapy-to-the-wall-of-arteries-and-veins-anatomical-physiologic-and-pharmacological-considerations
#6
REVIEW
Christoph S Nabzdyk, Leena Pradhan-Nabzdyk, Frank W LoGerfo
BACKGROUND: Cardiovascular disease remains a major health care challenge. The knowledge about the underlying mechanisms of the respective vascular disease etiologies has greatly expanded over the last decades. This includes the contribution of microRNAs, endogenous non-coding RNA molecules, known to vastly influence gene expression. In addition, short interference RNA has been established as a mechanism to temporarily affect gene expression. This review discusses challenges relating to the design of a RNA interference therapy strategy for the modulation of vascular disease...
July 28, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28750051/acute-resistance-exercise-modulates-microrna-expression-profiles-combined-tissue-and-circulatory-targeted-analyses
#7
Randall F D'Souza, James F Markworth, Kirsten M M Aasen, Nina Zeng, David Cameron-Smith, Cameron J Mitchell
A subset of short non-coding RNAs, microRNAs (miRs), have been identified in the regulation of skeletal muscle hypertrophy and atrophy. Expressed within cells, miRs are also present in circulation (c-miR) and have a putative role in cross-tissue signalling. The aim of this study was to examine the impact of a single bout of high intensity resistance exercise (RE) on skeletal muscle and circulatory miRs harvested simultaneously. Resistance trained males (n = 9, 24.6 ± 4.9 years) undertook a single bout of high volume RE with venous blood and muscle biopsies collected before, 2 and 4hr post-exercise...
2017: PloS One
https://www.readbyqxmd.com/read/28748478/urine-exosome-isolation-and-characterization
#8
Jonathan M Street, Erik H Koritzinsky, Deonna M Glispie, Peter S T Yuen
Exosomes are nanometer-scale, membrane-enclosed vesicles that can potentially be used to detect nephrotoxicity, and reveal the subsequent response of the kidney. Epithelial cells of every nephron segment can contribute to the urinary exosome population, which is rich in potential biomarkers, including membrane proteins such as transporters and receptors, transcription factors, and microRNAs. These exosomal biomarkers may be up- or downregulated upon nephrotoxicant exposure. Exosome isolation is an area of ongoing research...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28747214/culturing-and-transcriptome-profiling-of-progenitor-like-colonies-derived-from-adult-mouse-pancreas
#9
Dongshen Ma, Shanshan Tang, Jing Song, Qiong Wu, Fangfang Zhang, Yun Xing, Yi Pan, Yanfeng Zhang, Jingwei Jiang, Yubin Zhang, Liang Jin
BACKGROUND: Transplantation of insulin-producing cells is considered an important diabetes therapy. Many research studies have shown that insulin-producing cells can be derived from the in-vitro cultured pancreatic colonies with self-renewal ability and multilineage potential. Even though these progenitor-like colonies have been prepared from adult pancreas cells, the efficient culture method is hardly established and regulation of the colonies is rarely known. We confirmed previously that single cells acquired from adult mouse pancreas could form cyst-like colonies in a 3D semi-solid system containing Matrigel and methylcellulose...
July 26, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28739740/global-analysis-of-mirna-mrna-interaction-network-in-breast-cancer-with-brain-metastasis
#10
Zhixin Li, Zhiqiang Peng, Siyu Gu, Junfang Zheng, Duiping Feng, Qiong Qin, Junqi He
BACKGROUND: MicroRNAs (miRNAs) have been linked to a number of cancer types including breast cancer. The rate of brain metastases is 10-30% in patients with advanced breast cancer which is associated with poor prognosis. The potential application of miRNAs in the diagnostics and therapeutics of breast cancer with brain metastasis is an area of intense interest. In an initial effort to systematically address the differential expression of miRNAs and mRNAs in primary breast cancer which may provide clues for early detection of brain metastasis, we analyzed the consequent changes in global patterns of gene expression in Gene Expression Omnibus (GEO) data set obtained by microarray from patients with in situ carcinoma and patients with brain metastasis...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28731181/mir%C3%A2-21-promotes-%C3%AE-%C3%A2-sma-and-collagen-i-expression-in-hepatic-stellate-cells-via-the-smad7-signaling-pathway
#11
Rong-Quan Fu, Dan-Ping Hu, Yi-Bing Hu, Liang Hong, Qing-Feng Sun, Ji-Guang Ding
The aim of the present study was to investigate the role of microRNA (miR)‑21 in regulating collagen I and Smad7 expression in activated rat hepatic stellate cells (HSCs). Rat HSCs were isolated by single‑step density gradient centrifugation with Nycodenz. Cellular content of miR‑21, SMAD7, α‑smooth muscle actin (α‑SMA), collagen type I alpha 1 (COLLA1) and COLL alpha 2 (A2) mRNA was examined by reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR), and cellular content of Smad7 and α‑SMA protein was detected by western blotting...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28722430/multi-amplified-sensing-of-microrna-by-a-small-dna-fragment-driven-enzymatic-cascade-reaction
#12
Eunjung Kim, Philip D Howes, Spencer W Crowder, Molly M Stevens
Combining technological developments such as nanomaterials, DNA nanotechnology, and functional enzymes has great potential to facilitate next generation high performance molecular diagnostic systems. In this work, we describe a microRNA (miRNA) detection assay that combines target recycling and isothermal amplification in an elegantly designed enzyme-mediated cascade reaction. Target recycling is driven by the action of duplex-specific nuclease (DSN), resulting in highly amplified translation of input miRNA to short output DNA fragments...
January 27, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28714698/microrna-intercellular-transfer-and-bioelectrical-regulation-of-model-multicellular-ensembles-by-the-gap-junction-connectivity
#13
Javier Cervera, Salvador Meseguer, Salvador Mafe
We have studied theoretically the microRNA (miRNA) intercellular transfer through voltage-gated gap junctions in terms of a biophysically grounded system of coupled differential equations. Instead of modeling a specific system, we use a general approach describing the interplay between the genetic mechanisms and the single-cell electric potentials. The dynamics of the multicellular ensemble are simulated under different conditions including spatially inhomogeneous transcription rates and local intercellular transfer of miRNAs...
August 2, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28710827/comparison-of-non-coding-rnas-in-exosomes-and-functional-efficacy-of-human-embryonic-stem-cell-versus-induced-pluripotent-stem-cell-derived-cardiomyocytes
#14
Won Hee Lee, Wenyi Chen, Ning-Yi Shao, Dan Xiao, Xulei Qin, Natalie Baker, Hye Ryeong Michelle Bae, Praveen Shukla, Haodi Wu, Kazuki Kodo, Sang-Ging Ong, Joseph C Wu
BACKGROUND: Both human embryonic stem cell-derived cardiomyocytes (ESC-CMs) and human induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) can serve as unlimited cell sources for cardiac regenerative therapy. However, the functional equivalency between human ESC-CMs and iPSC-CMs for cardiac regenerative therapy has not been demonstrated. Here we performed a head-to-head comparison of ESC-CMs and iPSC-CMs in their ability to restore cardiac function in a rat myocardial infarction (MI) model as well as their exosomal secretome...
July 14, 2017: Stem Cells
https://www.readbyqxmd.com/read/28706757/biological-involvement-of-micrornas-in-proliferative-vitreoretinopathy
#15
REVIEW
Hiroki Kaneko, Hiroko Terasaki
Even with a high surgical success rate for retinal detachment and proliferative vitreoretinopathy (PVR) supported by the robust improvement in vitrectomy surgery and its related devices, certain questions still remain for the pathogenesis and treatment of PVR. One of the important biological events in PVR is epithelial-mesenchymal transition (EMT) of the retinal pigment epithelial (RPE) cells. MicroRNAs are noncoding, small, single-strand RNAs that posttranscriptionally regulate gene expression and have essential roles in homeostasis and pathogenesis in many diseases...
July 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28698800/metformin-induced-ablation-of-microrna-21-5p-releases-sestrin-1-and-cab39l-antitumoral-activities
#16
Claudio Pulito, Federica Mori, Andrea Sacconi, Frauke Goeman, Maria Ferraiuolo, Patrizia Pasanisi, Carlo Campagnoli, Franco Berrino, Maurizio Fanciulli, Rebecca J Ford, Massimo Levrero, Natalia Pediconi, Ludovica Ciuffreda, Michele Milella, Gregory R Steinberg, Mario Cioce, Paola Muti, Sabrina Strano, Giovanni Blandino
Metformin is a commonly prescribed type II diabetes medication that exhibits promising anticancer effects. Recently, these effects were found to be associated, at least in part, with a modulation of microRNA expression. However, the mechanisms by which single modulated microRNAs mediate the anticancer effects of metformin are not entirely clear and knowledge of such a process could be vital to maximize the potential therapeutic benefits of this safe and well-tolerated therapy. Our analysis here revealed that the expression of miR-21-5p was downregulated in multiple breast cancer cell lines treated with pharmacologically relevant doses of metformin...
2017: Cell Discovery
https://www.readbyqxmd.com/read/28693796/regulatory-effects-of-berberine-on-micrornome-in-cancer-and-other-conditions
#17
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/28693405/genetics-and-immunodysfunction-underlying-beh%C3%A3-et-s-disease-and-immunomodulant-treatment-approaches
#18
Arash Salmaninejad, Arezoo Gowhari, Seyedmojtaba Hosseini, Saeed Aslani, Meysam Yousefi, Tayyeb Bahrami, Masoume Ebrahimi, Abolfazl Nesaei, Masoud Zal
Behçet's disease (BD) is a chronic autoimmune condition primarily prevalent in populations along the Mediterranean Sea. The exact etiology of BD has not been fully explained yet, but the disease occurrence is associated with a genetic factor, human leukocyte antigen (HLA)-B51 antigen. Among the various immunodysfunctions that are found in BD, patients are increased neutrophil motility and superoxide production, as well as elevated production of tumor necrosis factor (TNF)-α and decreased production of interleukin (IL)-10...
December 2017: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/28685672/micrornas-mediated-mmp-regulation-current-diagnostic-and-therapeutic-strategies-for-metabolic-syndrome
#19
Sharad Saxena, Aditi Jain, Vibha Rani
Metabolic syndrome (MS) is a global socioeconomic problem rapidly progressing in accordance with increasing body mass index (BMI) and age. It is a consortium of risk factors, such as dyslipidaemia, insulin resistance, leptin resistance, reduced adiponectin, glucose intolerance, hyperglycemia, and hypertension. Collectively, these factors accelerate the onset of type 2 diabetes mellitus, cardiovascular disease, stroke, and certain cancers such as breast, liver pancreatic, and colon cancer. Extracellular matrix (ECM) and basement membrane remodeling play a central role during pathogenesis of MS as they regulate diverse cell functions including proliferation, differentiation, and migration...
July 7, 2017: Current Gene Therapy
https://www.readbyqxmd.com/read/28683746/multi-omics-of-34-colorectal-cancer-cell-lines-a-resource-for-biomedical-studies
#20
Kaja C G Berg, Peter W Eide, Ina A Eilertsen, Bjarne Johannessen, Jarle Bruun, Stine A Danielsen, Merete Bjørnslett, Leonardo A Meza-Zepeda, Mette Eknæs, Guro E Lind, Ola Myklebost, Rolf I Skotheim, Anita Sveen, Ragnhild A Lothe
BACKGROUND: Colorectal cancer (CRC) cell lines are widely used pre-clinical model systems. Comprehensive insights into their molecular characteristics may improve model selection for biomedical studies. METHODS: We have performed DNA, RNA and protein profiling of 34 cell lines, including (i) targeted deep sequencing (n = 612 genes) to detect single nucleotide variants and insertions/deletions; (ii) high resolution DNA copy number profiling; (iii) gene expression profiling at exon resolution; (iv) small RNA expression profiling by deep sequencing; and (v) protein expression analysis (n = 297 proteins) by reverse phase protein microarrays...
July 6, 2017: Molecular Cancer
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