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miRNA T cell

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https://www.readbyqxmd.com/read/28639574/mir-551b-5p-contributes-to-pathogenesis-of-vein-graft-failure-via-upregulating-early-growth-response-1-expression
#1
Ran Dong, Kui Zhang, Yue-Li Wang, Feng Zhang, Jian Cao, Ju-Bing Zheng, Hong-Jia Zhang
BACKGROUND: Vein graft failure (VGF) is a serious complication of coronary artery bypass graft, although the mechanism remains unclear. The study aimed to investigate the effects of microRNAs (miRNAs) on the endothelial dysfunction involved in VGF. METHODS: Human umbilical vein endothelial cells (HUVECs) were subjected to mechanical stretch stimulation to induce endothelial dysfunction. Genome-wide transcriptome profiling was performed using the Human miRNA OneArray® V4 (PhalanxBio Inc...
July 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28639194/rnaa-induced-by-tata-box-targeting-micrornas
#2
Yijun Zhang, Hui Zhang
Recent studies reveal that some nuclear microRNAs (miRNA) and synthesized siRNAs target gene promoters to activate gene transcription (RNAa). Interestingly, our group identified a novel HIV-1-encoded miRNA, miR-H3, which targets specifically the core promoter TATA box of HIV-1 and activates viral gene expression. Depletion of miR-H3 significantly impaired the replication of HIV-1. miR-H3 mimics could activate viruses from CD4(+) T cells isolated from patients receiving suppressive highly active antiretroviral therapy, which is very intriguing for reducing HIV-1 latent reservoir...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28634911/novel-insights-into-a-reputably-irreversible-process-combined-mrna-and-mirna-profiling-of-tissue-from-vesicourethral-anastomotic-stenosis-after-radical-prostatectomy
#3
T S Worst, K Daskalova, A Steidler, K Berner-Leischner, R Röth, B Niesler, C-A Weis, M C Kriegmair, P Erben, D Pfalzgraf
PURPOSE: Until recently, tissue fibrosis-ultimately leading to permanent scaring-has been considered an irreversible process. However, recent findings indicate that it may be reversible after all. Vesicourethral anastomotic stenosis (VUAS) as fibrous narrowing is a frequent complication after radical prostatectomy with high recurrence rates and requires invasive treatment. The pathophysiology is poorly understood. Therefore, a combined mRNA and miRNA transcription profiling in tissue from VUAS was performed using nCounter technology...
June 20, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28634212/prolonged-darkness-reduces-liver-fibrosis-in-a-mouse-model-of-primary-sclerosing-cholangitis-by-mir-200b-down-regulation
#4
Nan Wu, Fanyin Meng, Tianhao Zhou, Yuyan Han, Lindsey Kennedy, Julie Venter, Heather Francis, Sharon DeMorrow, Paolo Onori, Pietro Invernizzi, Francesca Bernuzzi, Romina Mancinelli, Eugenio Gaudio, Antonio Franchitto, Shannon Glaser, Gianfranco Alpini
Melatonin therapy or prolonged exposure to complete darkness reduces biliary hyperplasia and liver fibrosis in bile-duct-ligated (BDL) rats; however, no information exists in primary sclerosing cholangitis (PSC). Thus, we aimed to determine the therapeutic effects of prolonged dark therapy or melatonin administration on hepatic fibrosis in the Mdr2(-/-) mouse model of PSC. Melatonin levels, biliary mass, liver fibrosis, angiogenesis and miR-200b expression were evaluated in wild-type and Mdr2(-/-) mice exposed to darkness or melatonin treatment or in male PSC patient samples and healthy controls...
June 20, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28617945/microrna-cluster-106a-363-is-involved-in-t-helper-17-th17-cell-differentiation
#5
Marc Kaestle, Sabine Bartel, Kerstin Geillinger-Kästle, Martin Irmler, Johannes Beckers, Bernhard Ryffel, Oliver Eickelberg, Susanne Krauss-Etschmann
T-helper cell 17 (Th17) mediated inflammation is associated with various diseases including autoimmune encephalitis, inflammatory bowel disease and lung diseases such as chronic obstructive pulmonary disease and asthma. Differentiation into distinct Th subtypes needs to be tightly regulated to ensure an immunological balance. As microRNAs (miRNAs) are critical regulators of signaling pathways, we aimed to identify specific miRNAs implicated in controlling Th17 differentiation. We were able to create a regulatory network model of murine Th cell differentiation by combining Affymetrix mRNA and miRNA arrays and in-silico analysis...
June 15, 2017: Immunology
https://www.readbyqxmd.com/read/28615644/mirna-profiling-during-antigen-dependent-t-cell-activation-a-role-for-mir-132-3p
#6
Cristina Gutiérrez-Vázquez, Ana Rodríguez-Galán, Marcos Fernández-Alfara, María Mittelbrunn, Fátima Sánchez-Cabo, Dannys Jorge Martínez-Herrera, Marta Ramírez-Huesca, Alberto Pascual-Montano, Francisco Sánchez-Madrid
microRNAs (miRNAs) are tightly regulated during T lymphocyte activation to enable the establishment of precise immune responses. Here, we analyzed the changes of the miRNA profiles of T cells in response to activation by cognate interaction with dendritic cells. We also studied mRNA targets common to miRNAs regulated in T cell activation. pik3r1 gene, which encodes the regulatory subunits of PI3K p50, p55 and p85, was identified as target of miRNAs upregulated after T cell activation. Using 3'UTR luciferase reporter-based and biochemical assays, we showed the inhibitory relationship between miR-132-3p upregulation and expression of the pik3r1 gene...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28602756/antrodia-cinnamomea-sensitizes-radio-chemo-therapy-of-cancer-stem-like-cells-by-modulating-microrna-expression
#7
Yu-Kai Su, Ping-Hsiao Shih, Wei-Hwa Lee, Oluwaseun Adebayo Bamodu, Alexander T H Wu, Chun-Chih Huang, Yew-Min Tzeng, Michael Hsiao, Chi-Tai Yeh, Chien-Min Lin
ETHNOPHARMACOLOGICAL RELEVANCE: The discovery of many tissue-specific cancer stem cells (CSCs) continues to attract scientific attention. These CSCs are considered to be associated with chemo- and radio-resistance, and consequently, failure of conventional anticancer therapies. The recent demonstration of several microRNAs as enhancers of tumorigenicity via modulation of epithelial-mesenchymal transition and cancer stemness, makes them putative novel therapeutic target in oncology. Antrodia cinnamomea is a Chinese traditional medicine with several biological functions including anti-inflammation, antioxidant, and cancer prevention...
June 8, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28600480/mir-193a-3p-is-a-key-tumor-suppressor-in-ulcerative-colitis-associated-colon-cancer-and-promotes-carcinogenesis-through-up-regulation-of-il17rd
#8
Joel Pekow, Katherine Meckel, Urszula Dougherty, Yong Huang, Xindi Chen, Anas Almoghrabi, Reba Mustafi, Fatma Ayaloglu-Butun, Zifeng Deng, Haider I Haider, John Hart, David T Rubin, John H Kwon, Marc Bissonnette
Purpose: Patients with ulcerative colitis (UC) are at increased risk for colorectal cancer, although mechanisms underlying neoplastic transformation are poorly understood. We sought to evaluate the role of microRNAs in neoplasia development in this high-risk population.   <p>Experimental Design: Tissue from 12 controls, 9 UC patients without neoplasia, and 11 UC patients with neoplasia was analyzed. miRNA array analysis was performed and select miRNAs assayed by real-time PCR on the discovery cohort and a validation cohort...
June 9, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28596939/undifferentiated-pleomorphic-sarcoma-and-the-importance-of-considering-the-oncogenic-and-immune-suppressant-role-of-the-human-t-cell-lymphotropic-virus-type-1-a-case-report
#9
Sergio Lupo, Carolina Berini, Camila Cánepa, Eduardo Santini Araujo, Mirna Biglione
INTRODUCTION: Soft-tissue sarcomas account for 0.7% of all malignant tumors, with an incidence rate of 3 per 100,000 persons/year. The undifferentiated pleomorphic sarcoma (UPS) with giant cells, a high grade tumor of soft tissue, is very unusual, especially in young adults before the age of 40. Human T-cell lymphotropic virus type 1 (HTLV-1) is a human retrovirus, classified as group 1 human carcinogens by The International Agency for Research on Cancer, that causes an aggressive malignancy known as adult T-cell lymphoma/leukemia and a progressive chronic inflammatory neurological disease named HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP)...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28596683/polymorphisms-of-microrna-target-genes-il12b-insr-ccnd1-and-il10-in-gastric-cancer
#10
Vytenis Petkevicius, Violeta Salteniene, Simonas Juzenas, Thomas Wex, Alexander Link, Marcis Leja, Ruta Steponaitiene, Jurgita Skieceviciene, Limas Kupcinskas, Laimas Jonaitis, Gediminas Kiudelis, Peter Malfertheiner, Juozas Kupcinskas
AIM: To evaluate associations between miRNA target genes IL12B, INSR, CCND1 and IL10 polymorphisms and gastric cancer (GC) in European population. METHODS: Gene polymorphisms were analyzed in 508 controls and 474 GC patients from 3 tertiary centers in Germany, Lithuania and Latvia. Controls were patients from the out-patient departments, who were referred for upper endoscopy because of dyspeptic symptoms and had no history of previous malignancy. Gastric cancer (GC) patients had histopathological verification of gastric adenocarcinoma...
May 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28594651/mir-4728-3p-functions-as-a-tumor-suppressor-in-ulcerative-colitis-associated-colorectal-neoplasia-through-regulation-of-focal-adhesion-signaling
#11
Joel Pekow, Alan L Hutchison, Katherine Meckel, Kymberly Harrington, Zifeng Deng, Nitya Talasila, David T Rubin, Stephen B Hanauer, Roger Hurst, Konstantin Umanskiy, Alessandro Fichera, John Hart, Aaron R Dinner, Marc Bissonnette
BACKGROUND: As mechanisms of neoplasia in patients with ulcerative colitis (UC) remain poorly understood, we sought to identify pathways of carcinogenesis in this high-risk population. METHODS: MicroRNA (miRNA) and mRNA expression was examined in nondysplastic rectosigmoid mucosa from UC patients with (n = 19) or without remote colon neoplasia (n = 23). We developed a method to identify miRNA-regulated pathways based on differentially expressed miRNAs and their putative mRNAs targets in the same samples...
June 9, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28592251/distinct-expression-profile-of-hcmv-encoded-mirnas-in-plasma-from-oral-lichen-planus-patients
#12
Meng Ding, Xiang Wang, Cheng Wang, Xiaoshuang Liu, Ke Zen, Wenmei Wang, Chen-Yu Zhang, Chunni Zhang
BACKGROUND: Oral lichen planus (OLP) is a T cell-mediated autoimmune disease. The aetiology and molecular mechanisms of OLP remain unclear. Human cytomegalovirus (HCMV) infection is a causal factor in the development of various diseases, but the clinical relevance of HCMV in OLP has not been thoroughly investigated. METHODS: In the present study, we firstly examined twenty-three HCMV-encoded microRNA (miRNA) expression profiles in plasma from training set that including 21 OLP patients and 18 healthy controls using RT-qPCR technology...
June 7, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28587347/effect-of-mesenchymal-stem-cells-on-sj%C3%A3-gren-like-mice-and-the-microrna-expression-profiles-of-splenic-cd4-t-cells
#13
Guang-Feng Ruan, Ling Zheng, Jia-Shu Huang, Wan-Xue Huang, Bang-Dong Gong, Xing-Xing Fang, Xiao-Yu Zhang, Jian-Ping Tang
Mesenchymal stem cells (MSCs) serve immuno-regulatory functions and offer a promising novel treatment for certain autoimmune diseases. The present study investigated the therapeutic effect of mice bone marrow (BM)-MSCs on mice with relatively late stage of Sjögren-like disease and the impact of BM-MSCs on the microRNA (miRNA) expression profiles of splenic CD4+ T cells. Female NOD/Ltj mice were randomized into two groups: The disease group (n=8) and the MSC-treated group (n=8). Female ICR mice served as the healthy control group (n=8)...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28584262/genome-wide-profiling-and-differential-expression-of-microrna-in-rat-pluripotent-stem-cells
#14
Vladimir V Sherstyuk, Sergey P Medvedev, Evgeniy A Elisaphenko, Evgeniya A Vaskova, Maxim T Ri, Yuri V Vyatkin, Olga V Saik, Dmitry N Shtokalo, Evgeniy A Pokushalov, Suren M Zakian
MicroRNAs (miRNAs) constitute a class of small noncoding RNAs that plays an important role in the post-transcriptional regulation of gene expression. Much evidence has demonstrated that miRNAs are involved in regulating the human and mouse pluripotency. Nevertheless, to our knowledge, miRNAs in the pluripotent stem cells of one of the most commonly used model organisms - the Rattus norvegicus have not been studied. In the present study, we performed deep sequencing of small RNA molecules in the embryonic fibroblasts, embryonic stem cells, and induced pluripotent stem cells of laboratory rats...
June 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28584076/frontline-science-aspirin-triggered-resolvin-d1-controls-herpes-simplex-virus-induced-corneal-immunopathology
#15
Naveen K Rajasagi, Siddheshvar Bhela, Siva Karthik Varanasi, Barry T Rouse
Stromal keratitis (SK) is a chronic immunopathological lesion of the eye, caused by HSV-1 infection, and a common cause of vision impairment in humans. The inflammatory lesions in the cornea are primarily caused by neutrophils with the active participation of CD4(+) T cells. Therefore, the targeting of these immune cell types and their products represents a potentially valuable form of therapy to reduce the severity of disease. Resolvin D1 (RvD1) and its epimer aspirin-triggered RvD1 (AT-RvD1) are lipid mediators derived from docosahexaenoic acid (DHA) and were shown to promote resolution in several inflammatory disease models...
June 5, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28582843/acute-lymphoblastic-leukemia-and-genetic-variations-in-bhmt-gene-case-control-study-and-computational-characterization
#16
Ravishankara Bellampalli, Manik Vohra, Kashish Sharma, Nalini Bhaskaranand, Kamalakshi G Bhat, Krishna Prasad, Anu R Sharma, Kapaettu Satyamoorthy, Padmalatha S Rai
BACKGROUND: Remethylation of homocysteine is catalyzed by B12 dependent methionine synthase (MTR) in all types of cells and by B12 non-dependent betaine homocysteine methyltransferase (BHMT) in liver and kidney cells. Of many etiologies of cancer, an unexplored area is the variations of genes implicated in methylation reaction. OBJECTIVE: The study evaluated the association of BHMT (rs3733890) with acute lymphoblastic leukemia (ALL), followed by in-silico characterization of variations in BHMT gene...
May 19, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28579964/association-between-polymorphisms-in-micrornas-and-risk-of-urological-cancer-a-meta-analysis-based-on-17-019-subjects
#17
Yu-Hui Wang, Han-Ning Hu, Hong Weng, Hao Chen, Chang-Liang Luo, Jia Ji, Chang-Qing Yin, Chun-Hui Yuan, Fu-Bing Wang
Accumulating evidence has demonstrated that some single nucleotide polymorphisms (SNPs) existing in miRNAs correlate with the susceptibility to urological cancers. However, a clear consensus still not reached due to the limited statistical power in individual study. Thus, we concluded a meta-analysis to systematically evaluate the association between microRNA SNPs and urological cancer risk. Eligible studies were collected from PubMed, Embase, Web of Science, and CNKI databases. Pooled odds ratio (OR) and corresponding 95% confidence interval (95% CI) were calculated to assess the strength of the relationships between three SNPs (miR-196a2, C>T rs11614913; miR-146a, G>C rs2910164; and miR-499, A>G rs3746444) and the risk of urological cancers...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28569050/serum-mir-146a-mir-155-and-mir-210-as-potential-markers-of-graves-disease
#18
Lei Zheng, Chunbo Zhuang, Xiaobei Wang, Liang Ming
BACKGROUND: Previous studies have demonstrated that dysfunctional regulatory T cells (Tregs) may be associated with Graves' disease (GD). In this study, we evaluated four serum Treg-associated miRNAs (miR-210, miR-182, miR-155, and miR-146a) expressions and assessed the potential of serum miRNAs as biomarkers of GD. METHODS: Foxp3 and serum miRNAs expressions both in GD patients and healthy controls were measured by RT-PCR. RESULTS: Serum miR-210 in GD patients was significantly higher than that of healthy controls (2...
May 31, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28560518/mir-210-expression-in-pbmcs-from-patients-with-systemic-lupus-erythematosus-and-rheumatoid-arthritis
#19
Q Huang, S-S Chen, J Li, S-S Tao, M Wang, R-X Leng, H-F Pan, D-Q Ye
BACKGROUND: In hypoxic conditions, miRNA-210 plays an important role in regulating the expression of hypoxia-inducing factor-1α (HIF-1α) and the differentiation of T helper 17 (Th17) cells, and this may be involved in the development and function of the immune system. AIMS: This study was to investigate the miR-210 expression levels in peripheral blood mononuclear cells (PBMCs) from patients with systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) and its association with the clinical and laboratory features of both diseases...
May 30, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28555079/muc1-inhibition-leads-to-decrease-in-pd-l1-levels-via-up-regulation-of-mirnas
#20
A R Pyzer, D Stroopinsky, J Rosenblatt, E Anastasiadou, H Rajabi, A Washington, A Tagde, J-H Chu, M Coll, A L Jiao, L T Tsai, D E Tenen, L Cole, K Palmer, A Ephraim, R K Leaf, M Nahas, A Apel, Mb-N Zommer, S Jain, M McMasters, L Mendez, J Arnason, B A Raby, F Slack, D Kufe, D Avigan
The PD-L1/PD-1 pathway is a critical component of the immunosuppressive tumor microenvironment in AML, but little is known about its regulation. We investigated the role of the MUC1 oncoprotein in modulating PD-L1 expression in AML. Silencing of MUC1 in AML cell lines suppressed PD-L1 expression without a decrease in PD-L1 mRNA levels, suggesting a post-transcriptional mechanism of regulation. We identified the microRNAs miR-200c and miR-34a as key regulators of PD-L1 expression in AML. Silencing of MUC1 in AML cells led to a marked increase in miR-200c and miR-34a levels, without changes in precursor microRNA, suggesting that MUC1 might regulate microRNA processing...
May 30, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
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