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https://www.readbyqxmd.com/read/28530712/the-microrna-mir-31-inhibits-cd8-t-cell-function-in-chronic-viral-infection
#1
Howell F Moffett, Adam N R Cartwright, Hye-Jung Kim, Jernej Godec, Jason Pyrdol, Tarmo Äijö, Gustavo J Martinez, Anjana Rao, Jun Lu, Todd R Golub, Harvey Cantor, Arlene H Sharpe, Carl D Novina, Kai W Wucherpfennig
During infection, antigen-specific T cells undergo tightly regulated developmental transitions controlled by transcriptional and post-transcriptional regulation of gene expression. We found that the microRNA miR-31 was strongly induced by activation of the T cell antigen receptor (TCR) in a pathway involving calcium and activation of the transcription factor NFAT. During chronic infection with lymphocytic choriomeningitis virus (LCMV) clone 13, miR-31-deficent mice recovered from clinical disease, while wild-type mice continued to show signs of disease...
May 22, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28528141/portland-cement-induces-human-periodontal-ligament-cells-to-differentiate-by-upregulating-mir-146a
#2
Min-Ching Wang, Li-Yin Yeh, Wen-Yu Shih, Wan-Chun Li, Kuo-Wei Chang, Shu-Chun Lin
BACKGROUND/PURPOSE: Bioaggregates such as Portland cement (PC) can be an economical alternative for mineral trioxide aggregate (MTA) with additional benefit of less discoloration. MTA has been known to induce differentiations of several dental cells. MicroRNAs are important regulators of biological processes, including differentiation, physiologic homeostasis, and disease progression. This study is to explore how PC enhances the differentiation of periodontal ligament (PDL) cells in microRNAs level...
May 18, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28526071/retinoid-acid-induced-microrna-31-5p-suppresses-myogenic-proliferation-and-differentiation-by-targeting-camkii%C3%AE
#3
Bo Liu, Chao Liu, Wei Cong, Nan Li, Nan Zhou, Yi Tang, Chao Wei, Han Bai, Ying Zhang, Jing Xiao
BACKGROUND: We previously reported that Wnt5a/CaMKIIδ (calcium/calmodulin-dependent protein kinase II delta) pathway was involved in the embryonic tongue deformity induced by excess retinoic acid (RA). Our latest study found that the expression of miR-31-5p, which was predicted to target the 3'UTR of CamkIIδ, was raised in the RA-treated embryonic tongue. Thus, we hypothesized that the excess RA regulated Wnt5a/CaMKIIδ pathway through miR-31-5p in embryonic tongue. METHODS: C2C12 myoblast line was employed as an in vitro model to examine the suppression of miR-31-5p on CamkIIδ expression, through which RA impaired the myoblast proliferation and differentiation in embryonic tongue...
May 11, 2017: Skeletal Muscle
https://www.readbyqxmd.com/read/28490741/circulating-mirna-21-5p-as-a-diagnostic-biomarker-for-pancreatic-cancer-evidence-from-comprehensive-mirna-expression-profiling-analysis-and-clinical-validation
#4
Kai Qu, Xing Zhang, Ting Lin, Tian Liu, Zhixin Wang, Sushun Liu, Lei Zhou, Jichao Wei, Hulin Chang, Ke Li, Zheng Wang, Chang Liu, Zheng Wu
Pancreatic cancer (PC) is a highly fatal disease worldwide and is often misdiagnosed in its early stages. The exploration of novel non-invasive biomarkers will definitely benefit PC patients. Recently, circulating miRNAs in body fluids are emerging as non-invasive biomarkers for PC diagnosis. In this study, we first conducted comprehensive robust rank aggregation (RRA) analysis based on 21 published miRome profiling studies. We statistically identified and clinically validated a miRNA expression pattern in PC patients...
May 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28470118/changes-in-high-density-lipoprotein-carried-mirna-contribution-to-the-plasmatic-pool-after-consumption-of-dietary-trans-fat-in-healthy-men
#5
Véronique Desgagné, Renée Guérin, Simon-Pierre Guay, François Corbin, Patrick Couture, Benoit Lamarche, Luigi Bouchard
AIM: High-density lipoproteins (HDLs) are associated to cardioprotection and transport functional miRNAs in circulation. The aim of this study is to assess whether consumption of trans fatty acids (TFAs) modifies the HDL-carried miRNA concentration and their contribution to the plasmatic pool. METHODS: In a double-blind, randomized crossover controlled study, nine healthy men were fed each of three isoenergetic 4-week diets: first, rich in industrial TFAs; second, rich in TFAs from ruminants; third, low in TFAs...
May 4, 2017: Epigenomics
https://www.readbyqxmd.com/read/28455659/differential-expression-of-circulating-mir-21-mir-142-3p-and-mir-155-in-renal-transplant-recipients-with-impaired-graft-function
#6
Sepideh Zununi Vahed, Ahmad Poursadegh Zonouzi, Hossein Ghanbarian, Morteza Ghojazadeh, Nasser Samadi, Yadollah Omidi, Mohammadreza Ardalan
BACKGROUND: The discovery of circulating microRNAs (miRNAs), as potential noninvasive diagnostic biomarkers, has opened new avenues of research for identifying patients with chronic failure in renal transplantation. The present study aimed to investigate the expression levels of four immune-related miRNAs (miR-21, miR-31, miR-142-3p and miR-155) in plasma samples of renal recipients. METHODS: The plasma expression levels of the miRNAs were evaluated by quantitative real-time PCR (qPCR) in 53 renal recipients with long-term stable allograft function, SGF (N = 27), and with biopsy-proven interstitial fibrosis and tubular atrophy (IFTA) (N = 26) and also healthy controls (N = 15)...
April 28, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28454216/microrna-31-functions-as-an-oncogenic-microrna-in-cutaneous-squamous-cell-carcinoma-cells-by-targeting-rhotbt1
#7
Nengxing Lin, Yu Zhou, Xin Lian, Yating Tu
Cutaneous squamous cell carcinoma (cSCC) is a malignancy of epidermal keratinocytes that is responsible for ~20% of annual skin cancer-associated mortalities. Accumulating evidence demonstrates that the dysregulation of micro (mi)RNAs serves a significant role in the tumorigenesis and progression of human cSCC. MicroRNA-31 (miR-31) is upregulated in cSCC and is involved in cSCC development. However, the underlying mechanism remains unclear. The present study demonstrated that miR-31 is upregulated in the cSCC cell line, A-431, and that miR-31 expression contributes to the cell proliferation and invasion of cSCC...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28445945/non-small-cell-lung-cancer-associated-microrna-expression-signature-integrated-bioinformatics-analysis-validation-and-clinical-significance
#8
Chunyu Li, Yunhong Yin, Xiao Liu, Xuejiao Xi, Weixiao Xue, Yiqing Qu
Recently, increasing studies of miRNA expression profiling has confirmed that miRNA plays an essential role in non-small cell lung cancer (NSCLC). However, inconsistent or discrepant results exist in these researches. In present study, we performed an integrative analysis of 32 miRNA profiling studies compared the differentially expressed miRNA between NSCLC tissue and non-cancerous lung tissue to identify candidate miRNAs associated with NSCLC. 7 upregulated and 10 downregulated miRNAs were identified as miRNA integrated-signature using Robust Rank Aggregation (RRA) method...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28419554/the-major-mir-31-target-genes-stk40-and-lats2-and-their-implications-in-the-regulation-of-keratinocyte-growth-and-hair-differentiation
#9
Liming Luan, Jianyun Shi, Zhengquan Yu, Thomas Andl
Emerging evidence indicates that even subtle changes in the expression of key genes of signaling pathways can have profound effects. MicroRNAs (miRNAs) are masters of subtleness and generally have only mild effects on their target genes. The microRNA miR-31 is one of the major microRNAs in many cutaneous conditions associated with activated keratinocytes such as the hyperproliferative diseases psoriasis, non-melanoma skin cancer, and hair follicle growth. miR-31 is a marker of the hair growth phase, and in our miR-31 transgenic mouse model it impairs the function of keratinocytes, subsequently leading to aberrant proliferation, apoptosis and differentiation that result in altered hair growth, while loss of miR-31 leads to increased hair growth...
April 17, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28404921/circulating-mir-31-as-an-effective-biomarker-for-detection-and-prognosis-of-human-cancer-a-meta-analysis
#10
Yingjun Ma, Yunfang Chen, Jinbo Lin, Yi Liu, Kai Luo, Yong Cao, Tieqiang Wang, Hongwei Jin, Zhan Su, Haolin Wu, Xiaoliang Chen, Jinquan Cheng
PURPOSE: Circulating miR-31 was found to be associated with cancers detection and prognosis. The present meta-analysis aimed to explore the effect of circulating miR-31 on cancer detection and prognosis. METHOD: The studies were accessed using multiple databases. RevMan5.3, Meta-DiSc 1.4, and STATA14.0 were used to estimate the pooled effects, heterogeneity among studies, and publication bias. RESULTS: A total of 14 studies with 1397 cancer patients and 1039 controls were included...
April 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28398479/clinical-significance-of-mirna-host-gene-promoter-methylation-in-prostate-cancer
#11
Kristina Daniunaite, Monika Dubikaityte, Povilas Gibas, Arnas Bakavicius, Juozas Rimantas Lazutka, Albertas Ulys, Feliksas Jankevicius, Sonata Jarmalaite
Only a part of prostate cancer (PCa) patients has aggressive malignancy requiring adjuvant treatment after radical prostatectomy (RP). Biomarkers capable to predict biochemical PCa recurrence (BCR) after RP would significantly improve preoperative risk stratification and treatment decisions. MicroRNA (miRNA) deregulation has recently emerged as an important phenomenon in tumor development and progression, however, the mechanisms remain largely unstudied. In the present study, based on microarray profiling of DNA methylation in 9 pairs of PCa and noncancerous prostate tissues (NPT), host genes of miR-155-5p, miR-152-3p, miR-137, miR-31-5p, and miR-642a, -b were analyzed for promoter methylation in 129 PCa, 35 NPT, and 17 benign prostatic hyperplasia samples (BPH) and compared to the expression of mature miRNAs and their selected targets (DNMT1, KDM1A, and KDM5B)...
April 7, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28388926/proof-of-concept-study-profile-of-circulating-micrornas-in-bovine-serum-harvested-during-acute-and-persistent-fmdv-infection
#12
Carolina Stenfeldt, Jonathan Arzt, George Smoliga, Michael LaRocco, Joseph Gutkoska, Paul Lawrence
BACKGROUND: Changes in the levels of circulating microRNAs (miRNAs) in the serum of humans and animals have been detected as a result of infection with a variety of viruses. However, to date, such a miRNA profiling study has not been conducted for foot-and-mouth disease virus (FMDV) infection. METHODS: The relative abundance of 169 miRNAs was measured in bovine serum collected at three different phases of FMDV infection in a proof-of-concept study using miRNA PCR array plates...
April 7, 2017: Virology Journal
https://www.readbyqxmd.com/read/28377766/host-genetic-background-strongly-affects-pulmonary-microrna-expression-before-and-during-influenza-a-virus-infection
#13
Matthias Preusse, Klaus Schughart, Frank Pessler
BACKGROUND: Expression of host microRNAs (miRNAs) changes markedly during influenza A virus (IAV) infection of natural and adaptive hosts, but their role in genetically determined host susceptibility to IAV infection has not been explored. We, therefore, compared pulmonary miRNA expression during IAV infection in two inbred mouse strains with differential susceptibility to IAV infection. RESULTS: miRNA expression profiles were determined in lungs of the more susceptible strain DBA/2J and the less susceptible strain C57BL/6J within 120 h post infection (hpi) with IAV (H1N1) PR8...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28361910/her-2-expression-regulated-by-downregulation-of-mir-9-and-which-affects-chemotherapeutic-effect-in-breast-cancer
#14
G Sun, L Sun, Y Liu, H Xing, K Wang
This study aimed to identify microRNAs (miRs), the deregulated expression of which leads to the activation of oncogenic pathways in human breast cancer (BC). miRs are classes of endogenous, small, noncoding RNAs that regulate gene expression aberrantly in human tumor tissues. A total of 39 out of 123 tumoral and matched uninvolved peritumoral breast specimens from 3 independent subsets of patients were analyzed for the expression of 851 human miRs using an Agilent platform. The remaining 84 samples were used to validate miRs differentially expressed between tumoral and matched peritumoral specimens by quantitative polymerase chain reaction...
May 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28348559/mir-31-links-lipid-metabolism-and-cell-apoptosis-in-bacteria-challenged-apostichopus-japonicus-via-targeting-ctrp9
#15
Yina Shao, Chenghua Li, Wei Xu, Pengjuan Zhang, Weiwei Zhang, Xuelin Zhao
The biological functions of microRNAs (miRNAs) have been studied in a number of eukaryotic species. Recent studies on vertebrate animals have demonstrated critical roles of miRNA in immune and metabolic activities. However, studies on the functions of miRNA in invertebrates are very limited. Here, we demonstrated that miR-31 from Apostichopus japonicus disrupts the balance of lipid metabolism, thus resulting in cell apoptosis by targeting complement C1q tumor necrosis factor-related protein 9 (AjCTRP9), a novel adipokine with pleiotropic functions in immunity and metabolism...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28342299/plasma-microrna-signature-predicting-weight-gain-among-mexican-american-women
#16
Hua Zhao, Jie Shen, Carrie Daniel-MacDougall, Xifeng Wu, Wong-Ho Chow
OBJECTIVE: There is growing evidence that circulating microRNAs (miRNAs) play an important role in obesity. However, whether they can contribute to adult weight gain is still unclear. METHODS: In the training set with 40 nonsmoking, healthy women identified from the Mano-A-Mano Mexican American Cohort study, global circulating miRNA profiles in plasma samples were assessed. Cox proportional hazard regression was used to assess the effects of plasma miRNAs on significant weight gain during a 5-year follow-up...
March 25, 2017: Obesity
https://www.readbyqxmd.com/read/28322989/role-of-micrornas-in-endocrine-cancer-metastasis
#17
Cilene Rebouças Lima, Cibele Crastequini Gomes, Marinilce Fagundes Santos
The deregulation of transcription and processing of microRNAs (miRNAs), as well as their function, has been involved in the pathogenesis of several human diseases, including cancer. Despite advances in therapeutic approaches, cancer still represents one of the major health problems worldwide. Cancer metastasis is an aggravating factor in tumor progression, related to increased treatment complexity and a worse prognosis. After more than one decade of extensive studies of miRNAs, the fundamental role of these molecules in cancer progression and metastasis is beginning to be elucidated...
March 18, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28320737/mir-31-mutants-reveal-continuous-glial-homeostasis-in-the-adult-drosophila-brain
#18
Lynette Caizhen Foo, Shilin Song, Stephen Michael Cohen
The study of adult neural cell production has concentrated on neurogenesis. The mechanisms controlling adult gliogenesis are still poorly understood. Here, we provide evidence for a homeostatic process that maintains the population of glial cells in the Drosophila adult brain. Flies lacking microRNA miR-31a start adult life with a normal complement of glia, but transiently lose glia due to apoptosis. miR-31a expression identifies a subset of predominantly gliogenic adult neural progenitor cells. Failure to limit expression of the predicted E3 ubiquitin ligase, Rchy1, in these cells results in glial loss...
May 2, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28289479/colorectal-adenoma-and-carcinoma-specific-mirna-profiles-in-biopsy-and-their-expression-in-plasma-specimens
#19
Zsófia Brigitta Nagy, Barnabás Wichmann, Alexandra Kalmár, Orsolya Galamb, Barbara Kinga Barták, Sándor Spisák, Zsolt Tulassay, Béla Molnár
BACKGROUND: MiRNA expression markers are well characterized in colorectal cancer (CRC), but less is known about miRNA expression profiles in colorectal adenomas. Genome-wide miRNA and mRNA expression analyses were conducted through the colorectal adenoma dysplasia sequence. Furthermore, analysis of the expression levels of miRNAs in matched plasma samples was performed, focusing on biomarker candidates; miRNA and mRNA expression analyses were performed on colorectal biopsies and plasma samples (20 normals; 11 tubular and 9 tubulovillous adenomas; 20 colorectal carcinomas) by miRNA 3...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28269758/microrna31-ndrg3-regulation-axes-are-essential-for-hepatocellular-carcinoma-survival-and-drug-resistance
#20
Zhonghai Du, Shuxian Niu, Xiaoyu Xu, Qinghui Xu
BACKGROUNDS: Hepatocellular carcinoma (HCC) is an epithelial cancer that originates from hepatocytes and it is the most common primary malignant tumor of the liver. Till now the prognosis of HCC patients is generally poor. The molecular mechanism giving rise to HCC development and recurrence is still largely unknown. MicroRNA-31 (miR-31) is among the most commonly altered microRNAs in human cancers, and alternations of miR-31 expression were reported to play pivotal roles in tumorigenesis and tumor progression...
February 27, 2017: Cancer Biomarkers: Section A of Disease Markers
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