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miRNA T cell

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https://www.readbyqxmd.com/read/28731516/mir-181d-regulates-human-dendritic-cell-maturation-through-nf-%C3%AE%C2%BAb-pathway
#1
Xian Wei Su, Gang Lu, Chi Kwan Leung, Qiang Liu, Yi Li, Kam Sze Tsang, Shi Dou Zhao, Danny Tat Ming Chan, Hsiang Fu Kung, Wai Sang Poon
OBJECTIVES: MicroRNAs (miRNAs) are considered as the cellular regulators which post-transcriptionally modulate gene expression in diverse biological processes including cell development and immunity. In this study, we investigated functions of miR-181d in dendritic cells (DCs) maturation, and the underlying mechanisms were also explored. MATERIALS AND METHODS: Here we did the miRNA screening in human DCs in response to lipopolysaccharides (LPS) by quantitative real-time PCR (qRT-PCR)...
July 21, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28723645/altered-micrornas-expression-in-t-cells-of-patients-with-sle-involved-in-the-lack-of-vitamin-d
#2
Dao-Jun Chen, Lan-Ju Li, Xiao-Ke Yang, Tao Yu, Rui-Xue Leng, Hai-Feng Pan, Dong-Qing Ye
Vitamin D has been recognized as a potent immunomodulator and its deficiency is common in different population groups including patients with SLE. As miRNAs regulation plays a significant role in SLE, the present study aimed to evaluate the association between vitamin D status and miRNAs levels in patients with SLE. The serum concentrations of vitamin D (25-hydroxyvitamin D) and the levels of six miRNAs in T cells from patients with SLE were measured in 42 SLE cases and 48 healthy controls. Vitamin D treatment was also performed in isolated and cultured T cells from SLE patients in different times and doses...
July 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28720759/depleted-tumor-suppressor-mir-107-in-plasma-relates-to-tumor-progression-and-is-a-novel-therapeutic-target-in-pancreatic-cancer
#3
Taisuke Imamura, Shuhei Komatsu, Daisuke Ichikawa, Mahito Miyamae, Wataru Okajima, Takuma Ohashi, Jun Kiuchi, Keiji Nishibeppu, Hirotaka Konishi, Atsushi Shiozaki, Ryo Morimura, Hisashi Ikoma, Toshiya Ochiai, Kazuma Okamoto, Hiroki Taniguchi, Eigo Otsuji
This study explored decreased tumor suppressor microRNA (miRNA) plasma levels in pancreatic cancer (PCa) patients to clarify their potential as novel biomarkers and therapeutic targets. We used the microRNA array-based approach to select candidates by comparing plasma levels between PCa patients and healthy volunteers. Six down-regulated miRNAs (miR-107, miR-126, miR-451, miR-145, miR-491-5p, and miR-146b-5p) were selected. Small- and large-scale analyses using samples from 100 PCa patients and 80 healthy volunteers revealed that miR-107 was the most down-regulated miRNA in PCa patients compared with healthy volunteers (P < 0...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28719355/mirna-223-suppresses-foxo1-and-functions-as-a-potential-tumor-marker-in-breast-cancer
#4
Y-T Wei, D-W Guo, X-Z Hou, D-Q Jiang
Breast cancer is the most commonly diagnosed cancer in women and a leading cause of cancer mortality. MicroRNAs (miRNAs) have been found to play a key role in proliferation, metastasis and invasion of cancer. In previous study, we found that miRNA-223 was significant expression inexosome derived from peripheral blood serum of breast cancer patients than in samples from control subjects, Therefor,the role ofmiRNA-223willbe researched in MCF-7 breast cancer cells.In this study, to explore the role of miRNA-223in influencing cell proliferation, metastasis and invasion of breast cancer, TargetScan tools (http://www...
May 20, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28709644/horizontal-transfer-of-mir-106a-b-from-cisplatin-resistant-hepatocarcinoma-cells-can-alter-the-sensitivity-of-cervical-cancer-cells-to-cisplatin
#5
Grace R Raji, T V Sruthi, Lincy Edatt, K Haritha, S Sharath Shankar, V B Sameer Kumar
Recent studies indicate that horizontal transfer of genetic material can act as a communication tool between heterogenous populations of tumour cells, thus altering the chemosensitivity of tumour cells. The present study was designed to check whether the horizontal transfer of miRNAs released by cisplatin resistant (Cp-r) Hepatocarcinoma cells can alter the sensitivity of cervical cancer cells. For this exosomes secreted by cisplatin resistant and cisplatin sensitive HepG2 cells (EXres and EXsen) were isolated and characterised...
July 11, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28704808/enhanced-reactive-oxygen-species-production-acidic-cytosolic-ph-and-upregulated-na-h-exchanger-nhe-in-dicer-deficient-cd4-t-cells
#6
Yogesh Singh, Yuetao Zhou, Shaqiu Zhang, Khalid N M Abdelazeem, Bernat Elvira, Madhuri S Salker, Florian Lang
BACKGROUND: MicroRNAs (miRNAs) negatively regulate gene expression at a post-transcriptional level. Dicer, a cytoplasmic RNase III enzyme, is required for the maturation of miRNAs from precursor miRNAs. Dicer, therefore, is a critical enzyme involved in the biogenesis and processing of miRNAs. Several biological processes are controlled by miRNAs, including the regulation of T cell development and function. T cells generate reactive oxygen species (ROS) with parallel H+ extrusion accomplished by the Na+/H+-exchanger 1 (NHE1)...
July 14, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28704432/determination-of-absolute-expression-profiles-using-multiplexed-mirna-analysis
#7
Yunke Song, Duncan Kilburn, Jee Hoon Song, Yulan Cheng, Christopher T Saeui, Douglas G Cheung, Carlo M Croce, Kevin J Yarema, Stephen J Meltzer, Kelvin J Liu, Tza-Huei Wang
Accurate measurement of miRNA expression is critical to understanding their role in gene expression as well as their application as disease biomarkers. Correct identification of changes in miRNA expression rests on reliable normalization to account for biological and technological variance between samples. Ligo-miR is a multiplex assay designed to rapidly measure absolute miRNA copy numbers, thus reducing dependence on biological controls. It uses a simple 2-step ligation process to generate length coded products that can be quantified using a variety of DNA sizing methods...
2017: PloS One
https://www.readbyqxmd.com/read/28696844/comparison-of-micrornas-mediated-in-reactivation-of-the-%C3%AE-globin-in-%C3%AE-thalassemia-patients-responders-and-non-responders-to-hydroxyurea
#8
Mohammad T Hojjati, Azita Azarkeivan, Ali A Pourfathollah, Naser Amirizadeh
Drug induction of Hb F seems to be an ideal therapy for patients with hemoglobin (Hb) disorders, and many efforts have been made to reveal the mechanism behind it. Thus, we examined in vivo expression of some microRNAs (miRNAs) that are thought to be involved in this process. Among β-thalassemia (β-thal) patients who were undergoing hydroxyurea (HU) therapy in the past 3 months and five healthy individuals, five responders and five non-responders, were also included in the study. Erythroid progenitors were isolated by magnetic activated cell sorting (MACS) and miRNA expression analyzed using reverse transcription-polymerase chain reaction (RT-PCR)...
March 2017: Hemoglobin
https://www.readbyqxmd.com/read/28694799/a-tiny-rna-that-packs-a-big-punch-the-critical-role-of-a-viral-mir-155-ortholog-in-lymphomagenesis-in-marek-s-disease
#9
REVIEW
Guoqing Zhuang, Aijun Sun, Man Teng, Jun Luo
MicroRNAs (miRNAs) are small non-coding RNAs that have been identified in animals, plants, and viruses. These small RNAs play important roles in post-transcriptional regulation of various cellular processes, including development, differentiation, and all aspects of cancer biology. Rapid-onset T-cell lymphoma of chickens, namely Marek's disease (MD), induced by Gallid alphaherpesvirus 2 (GaHV2), could provide an ideal natural animal model for herpesvirus-related cancer research. GaHV2 encodes 26 mature miRNAs derived from 14 precursors assembled in three distinct gene clusters in the viral genome...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28694795/modulation-of-host-mirnas-transcriptome-in-lung-and-spleen-of-peste-des-petits-ruminants-virus-infected-sheep-and-goats
#10
Aruna Pandey, Amit R Sahu, Sajad A Wani, Shikha Saxena, Sonam Kanchan, Vaishali Sah, Kaushal K Rajak, Alok Khanduri, Aditya P Sahoo, Ashok K Tiwari, Bina Mishra, D Muthuchelvan, Bishnu P Mishra, Raj K Singh, Ravi K Gandham
Peste des petits ruminants (PPR) is one of the highly contagious viral disease, characterized by fever, sore mouth, conjunctivitis, gastroenteritis, and pneumonia, primarily affecting sheep and goats. Reports suggested variable host response in goats and sheep and this host response vis-a-vis the expression of microRNAs (miRNAs) has not been investigated. Here, miRNAs were sequenced and proteomics data were generated to identify the role of differentially expressed miRNA (DEmiRNA) in PPR virus (PPRV) infected lung and spleen tissues of sheep and goats...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28692419/long-term-cigarette-smoke-exposure-and-changes-in-mirna-expression-and-proteome-in-non-small-cell-lung-cancer
#11
Jayshree Advani, Yashwanth Subbannayya, Krishna Patel, Aafaque Ahmad Khan, Arun H Patil, Ankit P Jain, Hitendra S Solanki, Aneesha Radhakrishnan, Sneha M Pinto, Nandini A Sahasrabuddhe, Joji K Thomas, Premendu P Mathur, Bipin G Nair, Xiaofei Chang, T S Keshava Prasad, David Sidransky, Harsha Gowda, Aditi Chatterjee
Chronic exposure to cigarette smoke markedly increases the risk for lung cancer. Regulation of gene expression at the post-transcriptional level by miRNAs influences a variety of cancer-related interactomes. Yet, relatively little is known on the effects of long-term cigarette smoke exposure on miRNA expression and gene regulation. NCI-H292 (H292) is a cell line sensitive to cigarette smoke with mucoepidermoid characteristics in culture. We report, in this study, original observations on long-term (12 months) cigarette smoke effects in the H292 cell line, using microarray-based miRNA expression profiling, and stable isotopic labeling with amino acids in cell culture-based quantitative proteomic analysis...
July 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28669004/an-update-epstein-barr-virus-and-immune-evasion-via-microrna-regulation
#12
REVIEW
Lielian Zuo, Wenxin Yue, Shujuan Du, Shuyu Xin, Jing Zhang, Lingzhi Liu, Guiyuan Li, Jianhong Lu
Epstein-Barr virus (EBV) is an oncogenic virus that ubiquitously establishes life-long persistence in humans. To ensure its survival and maintain its B cell transformation function, EBV has developed powerful strategies to evade host immune responses. Emerging evidence has shown that microRNAs (miRNAs) are powerful regulators of the maintenance of cellular homeostasis. In this review, we summarize current progress on how EBV utilizes miRNAs for immune evasion. EBV encodes miRNAs targeting both viral and host genes involved in the immune response...
June 2017: Virologica Sinica
https://www.readbyqxmd.com/read/28665018/extracellular-vesicles-mediate-intercellular-communication-transfer-of-functionally-active-micrornas-by-microvesicles-into-phagocytes
#13
Laura Claßen, Lars-Oliver Tykocinski, Felix Wiedmann, Carolin Birr, Petra Schiller, Christine Tucher, Stefan Krienke, Marc-Steffen Raab, Norbert Blank, Hanns-Martin Lorenz, Martin Schiller
Cell activation and apoptosis lead to the formation of extracellular vesicles (EVs) such as exosomes or microvesicles (MVs). EVs have been shown to modulate immune responses; recently, MVs were described to carry microRNA (miRNA) and a role for MVs in the pathogenesis of autoimmune diseases has been discussed. Here we systematically characterized MVs and exosomes according to their release stimuli. The miRNA content of viable or apoptotic human T lymphocytes and the corresponding MVs was analyzed. miRNA, protein and surface marker expression, as well as cytokine release by human monocytes was measured after EV engulfment...
June 30, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28650464/%C3%AE-catenin-downregulates-dicer-to-promote-ovarian-cancer-metastasis
#14
S K Y To, A S C Mak, Y M Eva Fung, C-M Che, S-S Li, W Deng, B Ru, J Zhang, A S T Wong
Ovarian cancer is a nearly uniform lethal disease and its highly aggressive metastatic phenotype portends a poor prognosis. Lack of a well-controlled, relevant experimental model has been a major obstacle to identifying key molecules causing metastasis. Here we describe the creation of a new isogenic model of spontaneous human ovarian cancer metastasis exhibiting opposite phenotypes-highly metastatic (HM) and non-metastatic (NM)-both in vitro and in vivo. HM was unique in its ability to metastasize consistently to the peritoneum, mimicking the major dissemination route of human ovarian cancer...
June 26, 2017: Oncogene
https://www.readbyqxmd.com/read/28639574/mir-551b-5p-contributes-to-pathogenesis-of-vein-graft-failure-via-upregulating-early-growth-response-1-expression
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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