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https://www.readbyqxmd.com/read/28105955/small-rna-profiles-in-soybean-primary-root-tips-under-water-deficit
#1
Yun Zheng, Vandana Hivrale, Xiaotuo Zhang, Babu Valliyodan, Christine Lelandais-Brière, Andrew D Farmer, Gregory D May, Martin Crespi, Henry T Nguyen, Ramanjulu Sunkar
BACKGROUND: Soybean (Glycine max) production is significantly hampered by frequent droughts in many regions of the world including the United States. Identifying microRNA (miRNA)-controlled posttranscriptional gene regulation under drought will enhance our understanding of molecular basis of drought tolerance in this important cash crop. Indeed, miRNA profiles in soybean exposed to drought were studied but not from the primary root tips, which is not only a main zone of water uptake but also critical for water stress sensing and signaling...
December 5, 2016: BMC Systems Biology
https://www.readbyqxmd.com/read/28105225/mir-1297-promotes-cell-proliferation-by-inhibiting-rb1-in-liver-cancer
#2
Chengyong Liu, Chunying Wang, Ji Wang, Haibin Huang
Liver cancer is the one of the most common causes of cancer-associated mortality worldwide. MicroRNAs (miRNAs or miRs) are important in various types of cancer, including liver cancer. In the present study, with miRNA expression profile data obtained from the Gene Expression Omnibus database, three independent methods were used to investigate the miRNAs that are involved in liver carcinogenesis, including Fisher's exact test, t-test and Wilcoxon test. Five differentially expressed miRNAs were identified. Among them, miR-1297 drew specific attention...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28105104/glucocorticoids-regulate-the-proliferation-of-t-cells-via-mirna-155-in-septic-shock
#3
Ying Chen, Guang Wang, Zhongmin Liu, Shiji Wang, Yushan Wang
Although previous studies have evaluated the roles of glucocorticoids and lymphocytes in septic shock, the precise mechanism remains unclear. The present study focused on investigating the influence of glucocorticoids on micro (mi)RNA-155 expression levels and the proliferation of T lymphocytes in septic shock. T cells were harvested from in the peripheral blood of patients with septic shock and healthy volunteers and were cultured in vitro. miRNA-155 levels and cell proliferation rates were subsequently analyzed...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28101591/functions-of-cancer-derived-extracellular-vesicles-in-immunosuppression
#4
REVIEW
Liliana Czernek, Markus Düchler
Extracellular vesicles, including exosomes, constitute an important element of intercellular communication by carrying a variety of molecules from producer to target cells. The transport of mRNA and miRNA can directly modulate gene expression in the target cells. The miRNA content in exosomes is characteristic for the cell from which the vesicles were derived enabling the usage of exosomes as biomarkers for the diagnosis various diseases, including cancer. Cancer-derived exosomes support the survival and progression of tumors in many ways and also contribute to the neutralization of the anti-cancer immune response...
January 18, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28100873/microrna-10a-targets-t-box-5-to-inhibit-the-development-of-cardiac-hypertrophy
#5
Dan Wang, Guanqun Zhai, Yangfei Ji, Haiyun Jing
The mechanism of cardiac hypertrophy involving microRNAs (miRNAs) is attracting increasing attention. Our study aimed to investigate the role of miR-10a in cardiac hypertrophy development and the underlying regulatory mechanism.Transverse abdominal aortic constriction (TAAC) surgery was performed to establish a cardiac hypertrophy rat model, and angiotensin II (AngII) was used to induce cardiac hypertrophy in cultured neonatal rat cardiomyocytes. Expression of T-box 5 (TBX5) and miR-10a was altered by cell transfection of siRNA or miRNA mimic/inhibitor...
January 17, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28099841/targeted-inhibition-of-egfr-and-glutaminase-induces-metabolic-crisis-in-egfr-mutant-lung-cancer
#6
Milica Momcilovic, Sean T Bailey, Jason T Lee, Michael C Fishbein, Clara Magyar, Daniel Braas, Thomas Graeber, Nicholas J Jackson, Johannes Czernin, Ethan Emberley, Matthew Gross, Julie Janes, Andy Mackinnon, Alison Pan, Mirna Rodriguez, Melissa Works, Winter Zhang, Francesco Parlati, Susan Demo, Edward Garon, Kostyantyn Krysan, Tonya C Walser, Steven M Dubinett, Saman Sadeghi, Heather R Christofk, David B Shackelford
Cancer cells exhibit increased use of nutrients, including glucose and glutamine, to support the bioenergetic and biosynthetic demands of proliferation. We tested the small-molecule inhibitor of glutaminase CB-839 in combination with erlotinib on epidermal growth factor receptor (EGFR) mutant non-small cell lung cancer (NSCLC) as a therapeutic strategy to simultaneously impair cancer glucose and glutamine utilization and thereby suppress tumor growth. Here, we show that CB-839 cooperates with erlotinib to drive energetic stress and activate the AMP-activated protein kinase (AMPK) pathway in EGFR (del19) lung tumors...
January 17, 2017: Cell Reports
https://www.readbyqxmd.com/read/28098823/integrative-mirna-gene-expression-analysis-enables-refinement-of-associated-biology-and-prediction-of-response-to-cetuximab-in-head-and-neck-squamous-cell-cancer
#7
Loris De Cecco, Marco Giannoccaro, Edoardo Marchesi, Paolo Bossi, Federica Favales, Laura D Locati, Lisa Licitra, Silvana Pilotti, Silvana Canevari
This paper documents the process by which we, through gene and miRNA expression profiling of the same samples of head and neck squamous cell carcinomas (HNSCC) and an integrative miRNA-mRNA expression analysis, were able to identify candidate biomarkers of progression-free survival (PFS) in patients treated with cetuximab-based approaches. Through sparse partial least square-discriminant analysis (sPLS-DA) and supervised analysis, 36 miRNAs were identified in two components that clearly separated long- and short-PFS patients...
January 14, 2017: Genes
https://www.readbyqxmd.com/read/28096489/induced-packaging-of-cellular-micrornas-into-hiv-1-virions-can-inhibit-infectivity
#8
Hal P Bogerd, Edward M Kennedy, Adam W Whisnant, Bryan R Cullen
: Analysis of the incorporation of cellular microRNAs (miRNAs) into highly purified HIV-1 virions revealed that this largely, but not entirely, mirrored the level of miRNA expression in the producer CD4(+) T cells. Specifically, of the 58 cellular miRNAs detected at significant levels in the producer cells, only 5 were found in virions at a level 2- to 4-fold higher than that predicted on the basis of random cytoplasmic sampling. Of note, these included two miRNAs, miR-155 and miR-92a, that were reported previously to at least weakly bind HIV-1 transcripts...
January 17, 2017: MBio
https://www.readbyqxmd.com/read/28095188/mir-148a-and-mir-17-5p-synergistically-regulate-milk-tag-synthesis-via-ppargc1a-and-ppara-in-goat-mammary-epithelial-cells
#9
Zhi Chen, Jun Luo, Shuang Sun, Duoyao Cao, Huaiping Shi, Juan J Loor
MicroRNA (miRNA) are a class of '18-25' nt RNA molecules which regulate gene expression and play an important role in several biological processes including fatty acid metabolism. Here we utilized S-Poly (T) and high-throughput sequencing to evaluate the expression of miRNA and mRNA during early-lactation and in the non-lactating ("dry") period in goat mammary gland tissue. Results indicated that miR-148a, miR-17-5p, PPARGC1A and PPARA are highly expressed in the goat mammary gland in early-lactation and non-lactating periods...
January 17, 2017: RNA Biology
https://www.readbyqxmd.com/read/28094170/common-developmental-genome-deprogramming-in-schizophrenia-role-of-integrative-nuclear-fgfr1-signaling-infs
#10
S T Narla, Y-W Lee, C A Benson, P Sarder, K J Brennand, E K Stachowiak, M K Stachowiak
The watershed-hypothesis of schizophrenia asserts that over 200 different mutations dysregulate distinct pathways that converge on an unspecified common mechanism(s) that controls disease ontogeny. Consistent with this hypothesis, our RNA-sequencing of neuron committed cells (NCCs) differentiated from established iPSCs of 4 schizophrenia patients and 4 control subjects uncovered a dysregulated transcriptome of 1349 mRNAs common to all patients. Data reveals a global dysregulation of developmental genome, deconstruction of coordinated mRNA networks, and the formation of aberrant, new coordinated mRNA networks indicating a concerted action of the responsible factor(s)...
January 13, 2017: Schizophrenia Research
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
#11
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/28077577/extracellular-microrna-signature-of-human-helper-t-cell-subsets-in-health-and-autoimmunity
#12
Anna Torri, Donatella Carpi, Elisabetta Bulgheroni, Maria-Cristina Crosti, Monica Moro, Paola Gruarin, Riccardo L Rossi, Grazisa Rossetti, Dolores Di Vizio, Mirjam Hoxha, Valentina Bollati, Cristina Gagliani, Carlo Tacchetti, Moira Paroni, Jens Geginat, Laura Corti, Luigia Venegoni, Emilio Berti, Massimiliano Pagani, Giuseppe Matarese, Sergio Abrignani, Paola de Candia
Upon TCR stimulation, CD4+ T lymphocytes release extracellular vesicles (EVs) containing microRNAs. However, no data are available on whether human CD4+ T cell subsets release EVs containing different pattern of microRNAs. The present work aimed at filling this gap by assessing the microRNA content in EVs released upon in vitro TCR stimulation of Th1, Th17 and T regulatory (Treg) cells. Our results indicate that EVs released by Treg cells are significantly different compared to those released by the other subsets...
January 11, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28072411/the-early-growth-response-protein-1-mir-30a-5p-neurogenic-differentiation-factor-1-axis-as-a-novel-biomarker-for-schizophrenia-diagnosis-and-treatment-monitoring
#13
S Liu, F Zhang, Y Y Shugart, L Yang, X Li, Z Liu, N Sun, C Yang, X Guo, J Shi, L Wang, L Cheng, K Zhang, T Yang, Y Xu
To date, diagnosis of schizophrenia is still based on clinical interviews and careful observations, which is subjective and variable, and can lead to misdiagnosis and/or delay in diagnosis. As early intervention in schizophrenia is important in improving outcomes, objective tests that can be used for schizophrenia diagnosis or treatment monitoring are thus in great need. MicroRNAs (miRNAs) negatively regulate target gene expression and their biogenesis is tightly controlled by various factors including transcription factors (TFs)...
January 10, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28069547/overexpression-of-mir-92a-promotes-the-tumor-growth-of-osteosarcoma-by-suppressing-f-box-and-wd-repeat-containing-protein-7
#14
Xuesheng Jiang, Xiongfeng Li, Fengfeng Wu, Hongliang Gao, Guorong Wang, Hua Zheng, Huajun Wang, Jianyou Li, Chao Chen
MicroRNAs (miRNAs) have been reported to be critical players in osteosarcoma (OS). Among numerous cancer-related miRNAs, the expression level of miR-92a and its potential role in OS has not been investigated. Here, We showed that overexpression of miR-92a was identified in OS specimens and cells compared to normal bone tissues. The high level of miR-92a was correlated with high T classification and advanced clinical stages of OS patients. Notably, miR-92a highly expressing OS patients showed a notably reduced survival rate...
January 6, 2017: Gene
https://www.readbyqxmd.com/read/28068479/secretable-small-rnas-via-outer-membrane-vesicles-in-periodontal-pathogens
#15
J-W Choi, S-C Kim, S-H Hong, H-J Lee
MicroRNAs (miRNAs) have been shown to be major regulators of eukaryotic gene expression. However, bacterial RNAs comparable in size to eukaryotic miRNAs (18-22 nucleotides) have received little attention. Recently, a novel class of small RNAs similar in size to miRNAs (miRNA-size, small RNAs or msRNAs) have also been found in several bacteria. Like miRNAs, msRNAs are approximately 15 to 25 nucleotides in length, and their precursors are predicted to form a hairpin loop secondary structure. Here, we identified msRNAs in the periodontal pathogens Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, and Treponema denticola...
January 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28063705/h9n2-avian-influenza-virus-enhances-the-immune-responses-of-bmdcs-by-down-regulating-mir29c
#16
Jian Lin, Jing Xia, Ya T Chen, Ke Y Zhang, Yan Zeng, Qian Yang
Avian influenza virus (AIV) of the subtypes H9 and N2 is well recognised and caused outbreaks-due to its high genetic variability and high rate of recombination with other influenza virus subtypes. The pathogenicity of H9N2 AIV depends on the host immune response. Dendritic cells (DCs) are major antigen presenting cells that can significantly inhibit H9N2 AIV replication. MicroRNAs (miRNAs) influence the ability of DCs to present antigens, as well as the ability of AIVs to infect host cells and replicate. Here, we studied the molecular mechanism underlying the miRNA-mediated regulation of immune function of mouse DCs...
January 4, 2017: Vaccine
https://www.readbyqxmd.com/read/28057185/urine-exosomes-an-emerging-trove-of-biomarkers
#17
J M Street, E H Koritzinsky, D M Glispie, R A Star, P S T Yuen
Exosomes are released by most cells and can be isolated from all biofluids including urine. Exosomes are small vesicles formed as part of the endosomal pathway that contain cellular material surrounded by a lipid bilayer that can be traced to the plasma membrane. Exosomes are potentially a more targeted source of material for biomarker discovery than unfractionated urine, and provide diagnostic and pathophysiological information without an invasive tissue biopsy. Cytoplasmic contents including protein, mRNA, miRNA, and lipids have all been studied within the exosomal fraction...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28053090/functional-transcriptomics-in-diverse-intestinal-epithelial-cell-types-reveals-robust-microrna-sensitivity-in-intestinal-stem-cells-to-microbial-status
#18
Bailey C E Peck, Amanda T Mah, Wendy A Pitman, Shengli Ding, P Kay Lund, Praveen Sethupathy
Gut microbiota play an important role in regulating the development of the host immune system, metabolic rate, and at times, disease pathogenesis. The factors and mechanisms that mediate interactions between microbiota and the intestinal epithelium are not fully understood. We provide novel evidence that microbiota may control intestinal epithelial stem cell (IESC) proliferation in part through microRNAs (miRNAs). We demonstrate that miRNA profiles differ dramatically across functionally distinct cell types of the mouse jejunal intestinal epithelium and that miRNAs respond to microbiota in a highly cell-type specific manner...
January 4, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28052756/small-rna-sequencing-of-cryopreserved-semen-from-single-bull-revealed-altered-mirnas-and-pirnas-expression-between-high-and-low-motile-sperm-populations
#19
E Capra, F Turri, B Lazzari, P Cremonesi, T M Gliozzi, I Fojadelli, A Stella, F Pizzi
BACKGROUND: Small RNAs present in bovine ejaculate can be linked to sperm abnormalities and fertility disorders. At present, quality parameters routinely used in semen evaluation are not fully reliable to predict bull fertility. In order to provide additional quality measurements for cryopreserved semen used for breeding, a method based on deep sequencing of sperm microRNA (miRNA) and Piwi-interacting RNA (piRNA) from individual bulls was developed. To validate our method, two populations of spermatozoa isolated from high and low motile fractions separated by Percoll were sequenced, and their small RNAs content characterized...
January 4, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28039619/labeling-of-adipose-derived-stem-cells-with-quantum-dots-provides-stable-and-long-term-fluorescent-signal-for-ex-vivo-cell-tracking
#20
Clautina R M Costa, Matheus L T Feitosa, Dayseanny O Bezerra, Yulla K P Carvalho, Rodrigo F G Olivindo, Pablo B Fernando, Gustavo C Silva, Mirna L G Silva, Carlos E Ambrósio, Airton M Conde Júnior, Napoleão M Argolo Neto, Laís M Costa Silva, Maria A M Carvalho
Stem cells derived from adipose tissue (ADSC) have been used in cell therapy as an alternative to treat chronic and degenerative diseases. Using biomedical and image trials to track the cells when infused in the target tissue is essential to control cell migration and adhesion. The objective of the present study was to label and assess the adhesion of goat adipose tissue-derived stem cells (g-ADSC) after cell infusion in animal models by tracking luminescent intracytoplasmatic nanocrystals. The cells were labeled by using Qdots...
December 30, 2016: In Vitro Cellular & Developmental Biology. Animal
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