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miRNA T cell

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https://www.readbyqxmd.com/read/29222644/membrane-shed-vesicles-from-the-parasite-trichomonas-vaginalis-characterization-and-their-association-with-cell-interaction
#1
Yesica R Nievas, Veronica M Coceres, Victor Midlej, Wanderley de Souza, Marlene Benchimol, Antonio Pereira-Neves, Ajay A Vashisht, James A Wohlschlegel, Patricia J Johnson, Natalia de Miguel
Trichomonas vaginalis is a common sexually transmitted parasite that colonizes the human urogenital tract, where it remains extracellular and adheres to epithelial cells. Infections range from asymptomatic to highly inflammatory, depending on the host and the parasite strain. Despite the serious consequences associated with trichomoniasis disease, little is known about parasite or host factors involved in attachment of the parasite-to-host epithelial cells. Here, we report the identification of microvesicle-like structures (MVs) released by T...
December 8, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29222492/interaction-of-rna-binding-protein-hur-and-mir-466i-regulates-gm-csf-expression
#2
Jing Chen, William Adamiak, Ganlei Huang, Ulus Atasoy, Abdolmohamad Rostami, Shiguang Yu
Granulocyte-macrophage colony-stimulating factor (GM-CSF) produced by T helper 17 (Th17) cells plays an essential role in autoimmune diseases. Transcriptional regulation of Th17 cell differentiation has been extensively studied, but post-transcriptional regulation of Th17 cell differentiation has remained less well characterized. The RNA-binding protein HuR functions to promote the stability of target mRNAs via binding the AU-rich elements of the 3' untranslated region (3'UTR) of numerous pro-inflammatory cytokines including IL-4, IL-13, IL-17 and TNF-α...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29208599/prognostic-mirna-classifier-in-early-stage-mycosis-fungoides-development-and-validation-in-a-danish-nationwide-study
#3
Lise M Lindahl, Søren Besenbacher, Anne H Rittig, Pamela Celis, Andreas Willerslev-Olsen, Lise M R Gjerdrum, Thorbjørn Krejsgaard, Claus Johansen, Thomas Litman, Anders Woetmann, Niels Odum, Lars Iversen
Mycosis fungoides (MF) is the most frequent form of cutaneous T-cell lymphoma. The disease often takes an indolent course, but in approximately one third of the patients, the disease progresses to an aggressive malignancy with a poor prognosis. At the time of diagnosis, it is impossible to predict which patients develop severe disease and are in need of aggressive treatment. Accordingly, we investigated the prognostic potential of microRNAs (miRNAs) at the time of diagnosis in MF. Using a qRT-PCR platform, we analysed miRNA expression in diagnostic skin biopsies from 154 Danish patients with early-stage MF...
December 5, 2017: Blood
https://www.readbyqxmd.com/read/29207732/pre-microrna-gene-polymorphisms-and-risk-of-cervical-squamous-cell-carcinoma
#4
Shruti Srivastava, Shalini Singh, Naseem Fatima, Balraj Mittal, Anand Narain Srivastava
Introduction: MicroRNAs (miRNAs) are short (~22 nucleotides) regulatory RNAs that can modulate gene expression and are aberrantly expressed in many diseases, including cancer. It has been suggested that, the presence of single nucleotide polymorphisms in precursor miRNAs (pre-miRNAs) can alter miRNA processing, expression and binding to target mRNA and represents another type of genetic variability, that can contribute to the susceptibility of human cancers. Aim: The present study investigated the genetic variants in pre-miRNAs (hsa-miRNA-196a2 rs11614913 C/T, hsa-miRNA-499 rs3746444 T/C and hsa-miRNA-146a rs2910164 G/C) for their role in cervical cancer susceptibility...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29205500/a-functional-snp-in-the-3-utr-of-tap2-gene-interacts-with-microrna-hsa-mir-1270-to-suppress-the-gene-expression
#5
Bridgett Knox, Yong Wang, Lora J Rogers, Jiekun Xuan, Dianke Yu, Huaijin Guan, Jiwei Chen, Tieliu Shi, Baitang Ning, Susan A Kadlubar
The transporter associated with antigen processing 2 (TAP2) is involved in the development of multidrug resistance and the etiology of immunological diseases. In this study, we investigated whether the expression of TAP2 can be perturbed by single nucleotide polymorphisms (SNPs) located in 3'-untranslated region (3'-UTR) of the gene via interactions with microRNAs. Using a series of in silico assays, we selected the candidate microRNAs (miRNAs) with the potential to interact with functional SNPs of TAP2. The SNP rs241456-located in the 3'-UTR of TAP2-resides in a potential binding site for hsa-miR-1270 and hsa-miR-620...
December 5, 2017: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/29204322/diagnosis-value-of-aberrantly-expressed-microrna-profiles-in-lung-squamous-cell-carcinoma-a-study-based-on-the-cancer-genome-atlas
#6
Sheng Yang, Jing Sui, Geyu Liang
Background: Lung cancer is considered as one of the most frequent and deadly cancers with high mortality all around the world. It is critical to find new biomarkers for early diagnosis of lung cancer, especially lung squamous cell carcinoma (LUSC). The Cancer Genome Atlas (TCGA) is a database which provides both cancer and clinical information. This study is a comprehensive analysis of a novel diagnostic biomarker for LUSC, based on TCGA. Methods and Results: The present study investigated LUSC-specific key microRNAs (miRNAs) from large-scale samples in TCGA...
2017: PeerJ
https://www.readbyqxmd.com/read/29196714/screening-and-identification-of-lncrnas-as-potential-biomarkers-for-pulmonary-tuberculosis
#7
Zhong-Liang Chen, Li-Liang Wei, Li-Ying Shi, Meng Li, Ting-Ting Jiang, Jing Chen, Chang-Ming Liu, Su Yang, Hui-Hui Tu, Yu-Ting Hu, Lin Gan, Lian-Gen Mao, Chong Wang, Ji-Cheng Li
Pulmonary tuberculosis (TB) is among the diseases with the highest morbidity and mortality worldwide. Effective diagnostic methods for TB are lacking. In this study, we investigated long non-coding RNAs (lncRNAs) in plasma using microarray and the potential diagnostic value of lncRNAs for TB. We found a total of 163 up-regulated lncRNAs and 348 down-regulated lncRNAs. Gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) and coding-noncoding co-expression (CNC) analyses showed that functions of differentially expressed lncRNAs were mainly enriched in the regulation of alpha-beta T cell activation and the T cell receptor signalling pathway...
December 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29196189/pd-l1-inflammation-non-coding-rnas-and-neuroblastoma-immuno-oncology-perspective
#8
REVIEW
Palanisamy Nallasamy, Srinivas Chava, Sumit S Verma, Shruti Mishra, Santhi Gorantla, Don W Coulter, Siddappa N Byrareddy, Surinder K Batra, Subash C Gupta, Kishore B Challagundla
Neuroblastoma is the most common pediatric solid tumor of neural crest origin. The current treatment options for neuroblastoma produce severe side effects. Programmed death-ligand 1 (PD-L1), chronic inflammation, and non-coding RNAs are known to play a significant role in the pathogenesis of neuroblastoma. Cancer cells and the surrounding cells in the tumor microenvironment express PD-L1. Programmed death-1 (PD-1) is a co-receptor expressed predominantly by T cells. The binding of PD-1 to its ligands, PD-L1 or PD-L2, is vital for the physiologic regulation of the immune system...
November 28, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/29194612/nanocurcumin-restores-aberrant-mirna-expression-profile-in-multiple-sclerosis-randomized-double-blind-placebo-controlled-trial
#9
Sanam Dolati, Leili Aghebati Maleki, Majid Ahmadi, Faroogh Marofi, Zohreh Babaloo, Hormoz Ayramloo, Zahra Jafarisavari, Hamid Oskouei, Amir Afkham, Vahid Younesi, Mohammad Nouri, Mehdi Yousefi
OBJECTIVE: In the current study, we aimed to identify nanocurcumin effects on microRNAs (miRNAs) in the peripheral blood of patients with relapsing-remitting multiple sclerosis (RRMS). We intended to investigate the expression pattern of these miRNAs in experimental settings in vivo. METHODS: The expression levels of the selected 27 miRNAs known to be involved in the regulation of immune responses were analyzed in 50 RRMS patients and 35 healthy controls. The miRNA expression profiles were investigated by quantitative PCR (qPCR) at baseline and after 6 months of nanocurcumin therapy...
December 1, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29191214/the-role-of-aberrant-expression-of-t-cell-mirnas-affected-by-tnf-%C3%AE-in-the-immunopathogenesis-of-rheumatoid-arthritis
#10
Ning-Sheng Lai, Hui-Chun Yu, Chien-Hsueh Tung, Kuang-Yung Huang, Hsien-Bin Huang, Ming-Chi Lu
BACKGROUND: Tumor necrosis factor-alpha (TNF-α) can cause diverse T cell dysfunctions in patients with rheumatoid arthritis (RA). It is involved in the regulation of microRNAs (miRNAs) expression in different cell types. We hypothesized that the expression of T cell miRNAs would be affected by TNF-α, and these miRNAs could participate in the immunopathogenesis of RA. METHODS: Expression profiles of 270 human miRNAs in Jurkat cells, cultured in the presence or absence of TNF-α for 7 days were analyzed by real-time polymerase chain reaction...
December 1, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29187807/characteristic-mirna-expression-signature-and-random-forest-survival-analysis-identify-potential-cancer-driving-mirnas-in-a-broad-range-of-head-and-neck-squamous-cell-carcinoma-subtypes
#11
Yury O Nunez Lopez, Berta Victoria, Pawel Golusinski, Wojciech Golusinski, Michal M Masternak
Aim: To characterize the miRNA expression profile in head and neck squamous cell carcinoma (HNSSC) accounting for a broad range of cancer subtypes and consequently identify an optimal miRNA signature with prognostic value. Background: HNSCC is consistently among the most common cancers worldwide. Its mortality rate is about 50% because of the characteristic aggressive behavior of these cancers and the prevalent late diagnosis. The heterogeneity of the disease has hampered the development of robust prognostic tools with broad clinical utility...
January 2018: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/29176973/serum-and-extracellular-vesicle-micrornas-mir-423-mir-199-and-mir-93-as-biomarkers-for-acute-graft-versus-host-disease
#12
Rachel E Crossland, Jean Norden, Mateja Kralj Juric, Kim F Pearce, Clare Lendrem, Louis A Bibby, Matthew Collin, Hildegard T Greinix, Anne M Dickinson
Acute graft-versus-host disease (aGvHD) is a major cause of adverse outcome in hematopoietic stem cell transplantation (HSCT), with a high incidence (20-50%). A novel, non-invasive diagnostic test to predict for prevalence and severity would enable improved prophylaxis and reduce morbidity. Circulatory microRNAs (miRNAs) miR-423, miR-199, miR-93*, and miR-377 have previously been associated with aGvHD in post-HSCT patient plasma, but validation is lacking and their expression within extracellular vesicles (EVs) has not been explored...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29176936/role-of-microrna-33a-in-regulating-the-expression-of-pd-1-in-lung-adenocarcinoma
#13
Laura Boldrini, Mirella Giordano, Cristina Niccoli, Franca Melfi, Marco Lucchi, Alfredo Mussi, Gabriella Fontanini
Background: MiRNAs are vital in functioning as either oncogenes or tumor suppressors in the cell cycle. Target transcripts for immune checkpoint molecules such as PD-1/PD-L1 and (programmed cell death-1/its ligand and cytotoxic T-lymphocyte antigen 4) have proven to be beneficial against several solid tumors, including lung adenocarcinoma. Methods: Simultaneous quantification of the expression level of miR-33a and PD-1, PD-L1 and CTLA4 mRNAs with NanoString technology was performed in 88 lung adenocarcinoma specimens...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/29176620/cellular-microrna-networks-regulate-host-dependency-of-hepatitis-c-virus-infection
#14
Qisheng Li, Brianna Lowey, Catherine Sodroski, Siddharth Krishnamurthy, Hawwa Alao, Helen Cha, Stephan Chiu, Ramy El-Diwany, Marc G Ghany, T Jake Liang
Cellular microRNAs (miRNAs) have been shown to regulate hepatitis C virus (HCV) replication, yet a systematic interrogation of the repertoire of miRNAs impacting HCV life cycle is lacking. Here we apply integrative functional genomics strategies to elucidate global HCV-miRNA interactions. Through genome-wide miRNA mimic and hairpin inhibitor phenotypic screens, and miRNA-mRNA transcriptomics analyses, we identify three proviral and nine antiviral miRNAs that interact with HCV. These miRNAs are functionally linked to particular steps of HCV life cycle and related viral host dependencies...
November 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/29170130/microrna-140-suppresses-osteosarcoma-tumor-growth-by-enhancing-anti-tumor-immune-response-and-blocking-mtor-signaling
#15
Xianglu Ji, Enbo Wang, Feng Tian
Immune checkpoint blockade is proved to be a promising therapeutic strategy against several human malignancies. MicroRNAs (miRNAs) are ∼22 nucleotide RNAs that play important roles in regulating gene expression, either suppressing its translation or speeding up its degradation. In this study, we demonstrated that miR-140 acts as a critical modulator of PD-L1 and is significantly reduced in osteosarcoma (OS). MiR-140 was inversely correlated with PD-L1 and luciferase reporter assay confirmed that miR-140 can direct regulate PD-L1 expression by binding to its 3'UTR...
November 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29170128/cerebrospinal-fluid-cd4-t-lymphocyte-derived-mirna-let-7b-can-enhances-the-diagnostic-performance-of-alzheimer-s-disease-biomarkers
#16
Yaping Liu, Tian Wang, Xiaojing He, Yanling Li, Tian Wang
Alzheimer's disease is very difficult to clinically diagnose. miRNAs constitute the promising next generation of Alzheimer's disease (AD) biomarkers and have the potential to diagnose neurodegenerative diseases. In this study, 94 subjects underwent extensive dementia screening. Let-7b miRNA was found to increase in association with the progression of AD, and the increase in let-7b miRNA was mainly due to CD4(+) T cells in the cerebrospinal fluid (CSF). Additionally, let-7b was positively correlated with the expression of t-Tau and p-Tau...
November 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29166738/-expression-characteristics-and-prognosis-significance-of-mirna-181a-in-acute-myeloid-leukemia-with-normal-karyotype
#17
X X Zhuang, Q L Ma, H P Wang, M X Yu, X Li, H T Meng, W J Yu, C J Jin, L S You, J Jin
Objective: To study the expression of miRNA-181a in acute myeloid leukemia (AML) patients with normal karyotype to probe its prognosis significance. Methods: The expression level of miRNA-181a in bone marrow mononuclear cells of 120 de novo AML patients with normal karyotype was detected by real time fluorescence quantitative PCR. The direct sequencing method was used to detect IDH1, IDH2, NPM1, FLT3-ITD, DNMT3A and CEBPα mutations in CN-AML patients after PCR. The relationship between miRNA-181a expression and gene mutation, the clinical parameters and prognosis were analyzed...
October 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/29164620/repair-gene-mgmt-is-controlled-by-sp1-and-upregulated-by-glucocorticoids-but-not-by-temozolomide-and-radiation
#18
Dorthe Aasland, Thomas R Reich, Maja T Tomicic, Olivier J Switzeny, Bernd Kaina, Markus Christmann
Therapy of malignant glioma relies on treatment with the O(6) -methylating agent temozolomide (TMZ) concomitant with ionizing radiation followed by adjuvant TMZ. For the treatment of recurrences DNA chloroethylating drugs are also used. The main killing lesion induced by these drugs is O(6) -alkylguanine. Since this damage is repaired by O(6) -methylguanine-DNA methyltransferase (MGMT), the repair enzyme represents the most important factor of drug resistance, limiting the therapy of malignant high-grade gliomas...
November 22, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29163766/epigallocatechin-3-gallate-egcg-up-regulates-mir-15b-expression-thus-attenuating-store-operated-calcium-entry-soce-into-murine-cd4-t-cells-and-human-leukaemic-t-cell-lymphoblasts
#19
Shaqiu Zhang, Tamer Al-Maghout, Rosi Bissinger, Ni Zeng, Lisann Pelzl, Madhuri S Salker, Anchun Cheng, Yogesh Singh, Florian Lang
CD4(+) T cells are key elements in immune responses and inflammation. Activation of T cell receptors in CD4(+) T cells triggers cytosolic Ca(2+) release with subsequent store operated Ca(2+) entry (SOCE), which is accomplished by the pore forming Ca(2+) release activated Ca(2+) (CRAC) channel Orai1 and its regulator stromal cell-interaction molecule 2 (STIM2). Green tea polyphenol epigallocatechin-3-gallate (EGCG) acts as a potent anti-inflammatory and anti-oxidant agent for various types of cells including immune cells...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29163513/microrna-4443-causes-cd4-t-cells-dysfunction-by-targeting-tnfr-associated-factor-4-in-graves-disease
#20
Yicheng Qi, Yulin Zhou, Xinxin Chen, Lei Ye, Qianwei Zhang, Fengjiao Huang, Bin Cui, Dongping Lin, Guang Ning, Weiqing Wang, Shu Wang
Context: Aberrant CD4+ T cell function plays a critical role in the process of Graves' disease (GD). MicroRNAs (miRNAs) are important regulators of T cell activation, proliferation, and cytokine production. However, the contribution of miRNAs to CD4+ T cell dysfunction in GD remains unclear. Objective: To investigate how certain miRNA causes aberrant CD4+ T cell function in GD patients. Methods: We compared the expression pattern of miRNAs in CD4+ T cells from untreated GD (UGD) patients with those from healthy controls...
2017: Frontiers in Immunology
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