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miR-181a

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https://www.readbyqxmd.com/read/29243791/mir-181a-mediates-ang-ii-induced-myocardial-hypertrophy-by-mediating-autophagy
#1
A-L Li, J-B Lv, L Gao
OBJECTIVE: To investigate the relationship between miR-181a and cardiac hypertrophy and autophagy in rats with myocardial hypertrophy, and whether miR-181a regulates the autophagy through ATG5, thereby participating in the occurrence and development of myocardial hypertrophy. MATERIALS AND METHODS: The rat model of myocardial hypertrophy was established via the abdominal aortic coarctation. The expression of miR-181a in cardiac tissues was detected via reverse transcription-polymerase chain reaction (RT-PCR)...
December 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29228867/long-non-coding-rna-ccat1-promotes-multiple-myeloma-progression-by-acting-as-a-molecular-sponge-of-mir-181a-5p-to-modulate-hoxa1-expression
#2
Li Chen, Ning Hu, Chao Wang, Hongmian Zhao, Yueli Gu
Multiple myeloma (MM) is the second most common hematological cancer all over the world. Long non-coding RNA (lncRNA) colon cancer associated transcript-1 (CCAT1) has been reported to play important roles in the development and progression of multiple human malignancies. However, little is known about its functional role and molecular mechanism in MM. The aim of this study was to investigate the clinical and biological significance of CCAT1 in MM. Our data showed that the relative expression levels of CCAT1 were significantly upregulated in MM tissues and cell lines compared with healthy donors and normal plasma cells (nPCs)...
December 11, 2017: Cell Cycle
https://www.readbyqxmd.com/read/29221165/angiogenesis-in-adenosquamous-cancer-of-pancreas
#3
Nicola Silvestris, Katia Danza, Vito Longo, Oronzo Brunetti, Livia Fucci, Antonella Argentiero, Angela Calabrese, Ivana Cataldo, Roberto Tamma, Domenico Ribatti, Stefania Tommasi
Adenosquamous carcinoma of the pancreas (ASCP) is an uncommon variant of exocrine pancreatic malignancies, characterized by a histological admixture of adenomatous and squamous cell elements. This cancer is characterized by a poorly differentiated histology and a poorer clinical outcome compared to pancreatic ductal adenocarcinoma (PDAC). Unlike PDAC, that is characterized by a low microvascular density (MVD) and collapsed vasculature, no data are available about angiogenesis in ASPC. Immunohistochemical evaluation of MVD and trypatse-positive mast cells (MCs) were performed on a single case of ASCP compared to PDAC...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29207650/upregulation-of-mir-181a-impairs-hepatic-glucose-and-lipid-homeostasis
#4
Xiliang Du, Yuchen Yang, Chuang Xu, Zhicheng Peng, Min Zhang, Lin Lei, Wenwen Gao, Yuhao Dong, Zhen Shi, Xudong Sun, Zhe Wang, Xiaobing Li, Xinwei Li, Guowen Liu
The contributions of altered post-transcriptional gene silencing to the development of metabolic disorders remain poorly understood thus far. The objective of this study was to evaluate the roles of miR-181a in the regulation of hepatic glucose and lipid metabolism. MiR-181a is abundantly expressed in the liver, and we found that blood and hepatic miR-181a levels were significantly increased in patients and dairy cows with non-alcoholic fatty liver disease, as well as in high-fat diet and ob/ob mice. We determined that sirtuin1 is a target of miR-181a...
October 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/29194827/downregulation-of-lncrna-casc2-facilitates-osteosarcoma-growth-and-invasion-through-mir-181a
#5
Zhiwen Ba, Lili Gu, Songnan Hao, Xiaofang Wang, Zhenping Cheng, Guangchen Nie
OBJECTIVES: Long non-coding RNA cancer susceptibility candidate 2 (CASC2) is a novel lncRNA and has been indicated as playing tumour suppressor gene in several tumours. However, the role of CASC2 in osteosarcoma is still uncovered. MATERIALS AND METHODS: The CASC2 and miR-181a expressions were measured via qRT-PCR. CCK-8 assay and colony formation assay were performed to determine the cell growth, and transwell assay was performed to assess the cell invasion. RESULTS: We showed that CASC2 expression was downregulated in osteosarcoma samples and cell lines...
November 30, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/29179866/mirna-expression-in-tonsillar-squamous-cell-carcinomas-in-relation-to-hpv-infection-and-expression-of-the-antileukoproteinase-slpi
#6
Elgar Susanne Quabius, Immanuel Merz, Tibor Görögh, Jürgen Hedderich, Jochen Haag, Christoph Röcken, Petra Ambrosch, Markus Hoffmann
The aim of this study was to determine if micro-(mi-)RNAs are involved in the previously reported inverse correlation between the antileukoproteinase SLPI, HPV, and smoking habit of head and neck squamous cells carcinoma (HNSCC) patients. HPV-status and SLPI-protein expression were determined in tonsillar SCC (TSCC; n=126). Differentially expressed miRNAs dependent on HPV-status and SLPI-expression were detected by microarray; possible binding-sites in SLPI- and HPVE6-mRNAs were determined in silico. Survival rates were estimated testing prognostic values of HPV-status, SLPI- and miRNA-expression...
December 2017: Papillomavirus Research
https://www.readbyqxmd.com/read/29178897/microrna-expression-changes-in-association-with-changes-in-interleukin-1%C3%A3-interleukin10-ratios-produced-by-monocytes-in-autism-spectrum-disorders-their-association-with-neuropsychiatric-symptoms-and-comorbid-conditions-observational-study
#7
Harumi Jyonouchi, Lee Geng, Deanna L Streck, James J Dermody, Gokce A Toruner
BACKGROUND: MicroRNAs (miRNAs) play a major role in regulating immune responses at post-transcriptional levels. Previously, we have reported fluctuating interlukine-1ß (IL-1ß)/IL-10 ratios produced by peripheral blood monocytes (PBMo) in some patients with autism spectrum disorders (ASD). This study examined whether changes in miRNA expression by PBMo are associated with changes in IL-1ß/IL-10 ratios and how such changes are associated with ASD clinical features. METHODS: miRNA expression by purified PBMo from ASD subjects (N = 69) and non-ASD controls (N = 27) were determined by high-throughput sequencing...
November 25, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29176320/the-dual-regulatory-role-of-mir-181a-in-breast-cancer
#8
Chun Yang, Seyed Nasrollah Tabatabaei, Xiangyan Ruan, Pierre Hardy
MicroRNAs (miRNAs) are a family of highly conserved noncoding single-stranded RNA molecules of 21 to 25 nucleotides. miRNAs silence their cognate target genes at the post-transcriptional level and have been shown to have important roles in oncogenesis, invasion, and metastasis via epigenetic post-transcriptional gene regulation. Recent evidence indicates that the expression of miR-181a is altered in breast tumor tissue and in the serum of patients with breast cancer. However, there are several contradicting findings that challenge the biological significance of miR-181a in tumor development and metastasis...
November 24, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29164585/expression-and-clinical-significance-of-mir-181a-and-mir-203-in-systemic-lupus-erythematosus-patients
#9
H-S Li, Y Ning, S-B Li, P-Y Shao, S-J Chen, Q Ye, X Heng
OBJECTIVE: MiR-181a plays a critical role in modulating T cell and B cell differentiation, as well as immune response. Its abnormal expression probably participates in the pathogenesis of systemic lupus erythematosus (SLE). MiR-203 is involved in regulating Toll-like receptor and inducing immune tolerance. Abnormal expression or function of miR-203 is related to multiple auto-immune diseases but its role in SLE remains unclear. This study, thus, investigated the serum level of miR-181a and miR-203, to analyze their roles in diagnosing and evaluating SLE...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29164579/mir-181a-promotes-epithelial-to-mesenchymal-transition-of-prostate-cancer-cells-by-targeting-tgif2
#10
C Zhiping, T Shijun, W Linhui, W Yapei, Q Lianxi, D Qiang
OBJECTIVE: Prostate cancer is the most commonly diagnosed cancer, and metastatic prostate cancer often leads to poor outcomes for patients. During the metastasis processes, cancer cells acquire a migratory and invasive phenotype. Epithelial to mesenchymal transition (EMT) has been implicated in multiple processes of prostate cancer development including migration, chemoresistance, and carcinogenesis. PATIENTS AND METHODS: Expressions of miR-181a in prostate tumor samples and cancer cells were measured by qRT-PCR...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29152124/identification-of-a-sixteen-microrna-signature-as-prognostic-biomarker-for-stage-ii-and-iii-colon-cancer
#11
Havjin Jacob, Luka Stanisavljevic, Kristian Eeg Storli, Kjersti E Hestetun, Olav Dahl, Mette P Myklebust
Despite advances in colon cancer research and novel therapies, high risk of recurrence remains a major challenge. This study reports miRNA expression profiling as a biomarker for the prognosis of TNM stage II and III colon cancer. Fresh frozen biopsies from the study cohort (N=111) were analyzed for miRNA by RT-qPCR and LASSO regression analysis was used to build a classifier of miRNAs. The prognostic accuracy was tested and the classifier was validated in an independent colon cohort (TCGA-COAD, N=209). The LASSO regression analysis identified a 16-miRNA signature including miR-143-5p, miR-27a-3p, miR-31-5p, miR-181a-5p, miR-30b-5p, miR-30d-5p, miR-146a-5p, miR-23a-3p, miR-150-5p, miR-210-3p, miR-25-3p, miR-196a-5p, miR-148a-3p, miR-222-3p, miR-30c-5p and miR-223-3p...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29150993/overexpression-of-mir-31-in-peripheral-blood-mononuclear-cells-pbmc-from-patients-with-ankylosing-spondylitis
#12
Mengmeng Wang, Li Wang, Xu Zhang, Xiao Yang, Xiaona Li, Qing Xia, Mengya Chen, Renfang Han, Rui Liu, Shengqian Xu, Faming Pan
BACKGROUND miRNAs play vital roles in regulating immunologic functions and autoimmunity. However, the levels of miR-31, miR-155, miR-16, and miR-181a have not been explored in AS, but were verified to play vital roles in other immunological diseases. The aim of our study was to examine whether the expressions of miR-31, miR-155, miR-16, and miR-181a are abnormal in AS. MATERIAL AND METHODS Real-time transcription-polymerase chain reaction analysis (RT-PCR) was used to determine the expression of miR-31, miR-155, miR-16, and miR-181a in peripheral blood mononuclear cells (PBMC) from 40 patients with AS and 40 healthy controls...
November 18, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29150345/hydrostatic-pressure-as-epigenetic-modulator-in-chondrocyte-cultures-a-study-on-mirna-155-mirna-181a-and-mirna-223-expression-levels
#13
Anna De Palma, Sara Cheleschi, Nicola Antonio Pascarelli, Stefano Giannotti, Mauro Galeazzi, Antonella Fioravanti
Mechanical stimuli and hydrostatic pressure (HP) play an important role in the regulation of chondrocytes metabolism. Growing evidence demonstrated the ability of mechanical loading to modulate the expression of microRNA (miRNA) involved in chondrocytes homeostasis and in the pathogenesis of osteoarthritis (OA). The expression of miR-155, miR-181a and miR-223 in normal and OA chondrocyte cultures, and their potential modifications following exposure to three hours of a cyclic HP (1-5 MPa, frequency 0.25 Hz) were investigated...
November 7, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29141252/musashi1-promotes-non-small-cell-lung-carcinoma-malignancy-and-chemoresistance-via-activating-the-akt-signaling-pathway
#14
Yaoguo Lang, Xianglong Kong, Changjun He, Fengjiao Wang, Benkun Liu, Shibo Zhang, Jinfeng Ning, Kaibin Zhu, Shidong Xu
BACKGROUND/AIMS: Lung cancer is one of the leading causes for cancer mortality. The poor therapeutic outcome of non-small cell lung carcinoma (NSCLC) is mainly due to late diagnosis and chemoresistance. In this study, we investigated the role of Musashi1 (MSI1) in NSCLC malignancy and chemoresistance. METHODS: Colony formation, MTT, glucose uptake and lactate production assays were employed to study lung cancer cell malignancy and chemoresistance. RT-PCR and Western blotting were performed to detect mRNA and protein expressions of genes...
November 15, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29137407/lncrna-snhg12-contributes-to-multidrug-resistance-through-activating-the-mapk-slug-pathway-by-sponging-mir-181a-in-non-small-cell-lung-cancer
#15
Pei Wang, Dong Chen, Hongbing Ma, Yong Li
Small nucleolar RNA host gene 12 (SNHG12), as one of the long non-coding RNAs (lncRNAs), plays an oncogenic role in various cancers, however, its role in the chemoresistance of non-small cell lung cancer (NSCLC) is unclear. In this study, we investigated the effect of SNHG12 on multidrug resistance (MDR) in NSCLC. The results showed that SNHG12 was high-expressed and miR-181a was low-expressed in NSCLC tumor tissues and cell lines. Knockdown of SNHG12 reversed the resistance to cisplatin, paclitaxel and gefitinib in A549/DDP, A549/PTX and PC9/AB2 cells through inducing cell apoptosis...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29113250/comparison-of-mirna-and-gene-expression-profiles-between-metastatic-and-primary-prostate-cancer
#16
Kaimin Guo, Zuowen Liang, Fubiao Li, Hongliang Wang
The present study aimed to identify the regulatory mechanisms associated with the metastasis of prostate cancer (PC). The microRNA (miRNA/miR) microarray dataset GSE21036 and gene transcript dataset GSE21034 were downloaded from the Gene Expression Omnibus database. Following pre-processing, differentially expressed miRNAs (DEMs) and differentially expressed genes (DEGs) between samples from patients with primary prostate cancer (PPC) and metastatic prostate cancer (MPC) with |log2 fold change (FC)| >1 and a false discovery rate <0...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29069757/analysis-of-mirna-expression-profile-induced-by-short-term-starvation-in-breast-cancer-cells-treated-with-doxorubicin
#17
Sergio Rizzo, Antonina Cangemi, Antonio Galvano, Daniele Fanale, Silvio Buscemi, Marcello Ciaccio, Antonio Russo, Sergio Castorina, Viviana Bazan
Recent studies showed that dietary approaches restricting food intake can be helpful to hinder tumor progression. To date, the molecular mechanisms are unclear and a key role seems to be exerted by nutrient-related signaling pathways. Since several evidences showed that non-coding small RNAs, including microRNAs, are correlated to cancer progression and antiblastic treatment response, our work aims to study their involvement in a triple negative breast cancer (TNBC) cell line treated with doxorubicin under Short Term Starvation (STS) condition...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29068867/low-expression-of-mir-18a-as-a-characteristic-of-pediatric-acute-lymphoblastic-leukemia
#18
Neda Mosakhani, Mohamed El Missiry, Emmi Vakkila, Sakari Knuutila, Jukka Vakkila
BACKGROUND: Acute lymphoblastic leukemia (ALL) occurs in both adults and children but the response to chemotherapy and survival is significantly worse in the adults. We aimed to study whether the expression of immune system-associated miRNAs would differ between adult and pediatric patients with ALL at the time of diagnosis. MATERIALS AND METHODS: Inflammation-associated miRNA analysis was performed in 19 adults and 79 pediatric patients with ALL and involved miR-10, miR-15, miR-16, miR-17-92 cluster, miR-33, miR-146a, miR-150, miR-155, miR-181a, miR-222, miR-223, and miR-339...
November 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29066014/up-regulation-of-mir-181a-in-clear-cell-renal-cell-carcinoma-is-associated-with-lower-klf6-expression-enhanced-cell-proliferation-accelerated-cell-cycle-transition-and-diminished-apoptosis
#19
Zhenwei Lei, Xin Ma, Hongzhao Li, Yu Zhang, Yu Gao, Yang Fan, Xintao Li, Luyao Chen, Yongpeng Xie, Jianwen Chen, Shengpan Wu, Lu Tang, Xu Zhang
OBJECTIVES: Dysregulated expression of miR-181a accompanies tumorigenesis in many human cancers. However, in clear cell renal cell carcinoma (ccRCC), the role of miR-181a remains unclear. The aim of this study was to investigate biological functions of miR-181a and its expression levels in ccRCC tissues and cancer cell lines. MATERIAL AND METHODS: Expression levels of miR-181a in samples of ccRCC tumors and adjacent nontumor tissues from 42 patients as well as in 786-O, 769-P, A498, and CAKI-1 ccRCC cell lines were determined by quantitative real-time polymerase chain reaction...
October 20, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/29047327/integrative-testis-transcriptome-analysis-reveals-differentially-expressed-mirnas-and-their-mrna-targets-during-early-puberty-in-atlantic-salmon
#20
K O Skaftnesmo, R B Edvardsen, T Furmanek, D Crespo, E Andersson, L Kleppe, G L Taranger, J Bogerd, R W Schulz, A Wargelius
BACKGROUND: Our understanding of the molecular mechanisms implementing pubertal maturation of the testis in vertebrates is incomplete. This topic is relevant in Atlantic salmon aquaculture, since precocious male puberty negatively impacts animal welfare and growth. We hypothesize that certain miRNAs modulate mRNAs relevant for the initiation of puberty. To explore which miRNAs regulate mRNAs during initiation of puberty in salmon, we performed an integrated transcriptome analysis (miRNA and mRNA-seq) of salmon testis at three stages of development: an immature, long-term quiescent stage, a prepubertal stage just before, and a pubertal stage just after the onset of single cell proliferation activity in the testis...
October 18, 2017: BMC Genomics
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