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https://www.readbyqxmd.com/read/28427387/serum-microrna-profile-in-patients-with-colon-adenomas-or-cancer
#1
Yajie Zhang, Min Li, Yijiang Ding, Zhimin Fan, Jinchun Zhang, Hongying Zhang, Bin Jiang, Yong Zhu
BACKGROUND: Colon cancer, one of the most common causes of cancer-related deaths, arises from adenomatous polyps. In these years, circulating microRNAs (miRNAs) have attracted increasing attention as novel biomarkers for colon cancers. The dysregulated circulating miRNAs in patients with colon adenomas has not been well-understood. METHODS: Here, we aimed to identify miRNA profile in the serum of patients with colon adenomas or colon cancer by using microarray. Then we validated eight differentially expressed miRNAs (DEMs) by qRT-PCR and predicted their targets...
April 20, 2017: BMC Medical Genomics
https://www.readbyqxmd.com/read/28425921/plasma-micro-rna-alterations-appear-late-in-pancreatic-cancer
#2
Oskar Franklin, Pär Jonsson, Ola Billing, Erik Lundberg, Daniel Öhlund, Hanna Nyström, Christina Lundin, Henrik Antti, Malin Sund
OBJECTIVES: The aim of this research was to study whether plasma microRNAs (miRNA) can be used for early detection of pancreatic cancer (PC) by analyzing prediagnostic plasma samples collected before a PC diagnosis. BACKGROUND: PC has a poor prognosis due to late presenting symptoms and early metastasis. Circulating miRNAs are altered in PC at diagnosis but have not been evaluated in a prediagnostic setting. METHODS: We first performed an initial screen using a panel of 372 miRNAs in a retrospective case-control cohort that included early-stage PC patients and healthy controls...
January 3, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28423566/the-diagnostic-role-of-microrna-34a-in-breast-cancer-a-systematic-review-and-meta-analysis
#3
Saber Imani, Xianqin Zhang, Hossein Hosseinifard, Shangyi Fu, Junjiang Fu
BACKGROUND: MicroRNA-34a (miR-34a) is a master regulator of tumor suppression in breast cancer (BC). This systematic review aims to analyze the diagnostic accuracy of miR-34a in the detection of BC as a biomarker. RESULTS: A total of 1858 BC cases and 494 controls from thirteen eligible studies reported in 9 publications were included. The overall pooled sensitivity, specificity, negative likelihood ratio (NLR), positive likelihood ratio (PLR), and diagnostic odds ratio (DOR) were 85...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422941/metabolism-related-micrornas-in-maternal-breast-milk-are-influenced-by-premature-delivery
#4
Molly C Carney, Andrij Tarasiuk, Susan L DiAngelo, Patricia Silveyra, Abigail Podany, Leann L Birch, Ian M Paul, Shannon Kelleher, Steven D Hicks
BACKGROUND: Maternal breast milk (MBM) is enriched in microRNAs, factors that regulate protein translation throughout the human body. MBM from mothers of term and preterm infants differ in nutrient, hormone, and bioactive-factor composition, but the microRNA differences between these groups have not been compared. We hypothesized that gestational age at delivery influences microRNA in MBM, particularly microRNAs involved in immunologic and metabolic regulation. METHODS: MBM from mothers of premature infants (pMBM) obtained 3-4 weeks post-delivery was compared with MBM from mothers of term infants obtained at birth (tColostrum) and 3-4 weeks post-delivery (tMBM)...
April 19, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28422188/resolvin-d1-enhances-the-resolution-of-lung-inflammation-caused-by-long-term-pseudomonas-aeruginosa-infection
#5
M Codagnone, E Cianci, A Lamolinara, V C Mari, A Nespoli, E Isopi, D Mattoscio, M Arita, A Bragonzi, M Iezzi, M Romano, A Recchiuti
Pseudomonas aeruginosa lung infection is a main cause of disability and mortality worldwide. Acute inflammation and its timely resolution are crucial for ensuring bacterial clearance and limiting tissue damage. Here, we investigated protective actions of resolvin (Rv) D1 in lung infection induced by the RP73 clinical strain of P. aeruginosa. RvD1 significantly diminished bacterial growth and neutrophil infiltration during acute pneumonia caused by RP73. Inoculum of RP73, immobilized in agar beads, resulted in persistent lung infection up to 21 days, leading to a non resolving inflammation reminiscent of human pathology...
April 19, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28415794/micrornas-of-the-mir-17-92-cluster-regulate-multiple-aspects-of-pancreatic-tumor-development-and-progression
#6
Brian Quattrochi, Anushree Gulvady, David R Driscoll, Makoto Sano, David S Klimstra, Christopher E Turner, Brian C Lewis
Pancreatic ductal adenocarcinoma (PDAC) is a lethal malignancy characterized by resistance to currently employed chemotherapeutic approaches. Members of the mir-17~92 cluster of microRNAs (miRNAs) are upregulated in PDAC, but the precise roles of these miRNAs in PDAC are unknown. Using genetically engineered mouse models, we show that loss of mir-17~92 reduces ERK pathway activation downstream of mutant KRAS and promotes the regression of KRASG12D-driven precursor pancreatic intraepithelial neoplasias (PanINs) and their replacement by normal exocrine tissue...
March 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415619/association-of-two-microrna-polymorphisms-mir-27-rs895819-and-mir-423-rs6505162-with-the-risk-of-cancer
#7
Hong Zhang, Yafei Zhang, Xixi Zhao, Xingcong Ma, Wanjun Yan, Wen Wang, Zitong Zhao, Qian Yang, Xi Sun, Hui Luan, Xiaoyan Gao, Shuqun Zhang
Many studies have been conducted to investigate the association between miR-27 rs895819 A > G and miR-423 rs6505162 C > A and cancer risk; however, the results are not consistent. In order to acquire a more precise assessment of the correlation, we performed this meta-analysis. We searched PubMed, EMBASE and Web of Science databases to identify eligible studies. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were applied to evaluate the correlation of these two microRNA polymorphisms with cancer risk...
March 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28411393/global-exosome-transcriptome-profiling-reveals-biomarkers-for-multiple-sclerosis
#8
Igor Selmaj, Maria Cichalewska, Magdalena Namiecinska, Grazyna Galazka, Wojciech Horzelski, Krzysztof W Selmaj, Marcin P Mycko
OBJECTIVE: Accumulating evidence supports a role for exosomes in immune regulation. In this study, we investigated the total circulating exosome transcriptome in relapsing-remitting multiple sclerosis patients (RRMS) and healthy controls (HC). METHODS: Next generation sequencing (NGS) was used to define the global RNA profile of serum exosomes in 19 RRMS patients (9 in relapse, 10 in remission) and 10 HC. We analyzed 5 million reads and over 50,000 transcripts per sample, including a detailed analysis of microRNA (miRNA) differentially expressed in RRMS...
April 15, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28411194/systematic-characterization-of-a-to-i-rna-editing-hotspots-in-micrornas-across-human-cancers
#9
Yumeng Wang, Xiaoyan Xu, Shuangxing Yu, Kang Jin Kang, Zhicheng Zhou, Leng Han, Yiu Huen Tsang, Jun Li, Hu Chen, Lingegowda S Mangala, Yuan Yuan, A Karina Eterovic, Yiling Lu, Anil K Sood, Kenneth L Scott, Gordon B Mills, Han Liang
RNA editing, a widespread posttranscriptional mechanism, has emerged as a new player in cancer biology. Recent studies have reported key roles for individual miRNA editing events, but a comprehensive picture of miRNA editing in human cancers remains largely unexplored. Here we systematically characterized the miRNA editing profiles of 8,595 samples across 20 cancer types from miRNA sequencing data of The Cancer Genome Atlas and identified 19 adenosine-to-inosine (A-to-I) RNA editing hotspots. We independently validated 15 of them by perturbation experiments in several cancer cell lines...
April 14, 2017: Genome Research
https://www.readbyqxmd.com/read/28408209/role-of-mir-34a-in-tgf-%C3%AE-1-and-drug-induced-epithelial-mesenchymal-transition-in-alveolar-type-ii-epithelial-cells
#10
Mikihisa Takano, Chinami Nekomoto, Masashi Kawami, Ryoko Yumoto
Epithelial-mesenchymal transition (EMT) of alveolar type II epithelial cells may play an important role in the pulmonary fibrosis induced by drugs such as bleomycin (BLM) and methotrexate (MTX). In this study, we examined the role of microRNAs (miRNAs) in drug-induced EMT using RLE/Abca3, a cell line having alveolar type II cell-like phenotype. Based on the screening using miRNA microarray analysis, it was found that the expression of some miRNAs, such as miR-34a, was increased by transforming growth factor (TGF)-β1 and BLM...
April 10, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28397476/enforced-mir-144-3p-expression-as-a-non-invasive-biomarker-for-the-acute-myeloid-leukemia-patients-mainly-by-targeting-nrf2
#11
Xuelin Sun, Dejun Liu, Yuan Xue, Xin Hu
BACKGROUND: MicroRNAs (miRNAs) are endogenous non-coding RNAs of 19-25 nucleotides in length. Abnormal miRNA expression has been identified in various types of cancer. However, the aberrant expression of miR-1244 has not been reported in acute myeloid leukemia. METHODS: First, the expression of miR-144-3p was explored in the bone marrow and peripheral blood of AML patients and healthy control. Then, we also evaluated the level of miR-144-3p in HL-60 cells. The possible target gene of miR-144-3p was predicted using TargetScan...
April 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28387604/des-ncrna-a-knowledgebase-for-exploring-information-about-human-micro-and-long-noncoding-rnas-based-on-literature-mining
#12
Adil Salhi, Magbubah Essack, Tanvir Alam, Vladan P Bajic, Lina Ma, Aleksandar Radovanovic, Benoit Marchand, Sebastian Schmeier, Zhang Zhang, Vladimir B Bajic
Noncoding RNAs (ncRNAs), particularly microRNAs (miRNAs) and long ncRNAs (lncRNAs), are important players in diseases and emerge as novel drug targets. Thus, unraveling the relationships between ncRNAs and other biomedical entities in cells are critical for better understanding ncRNA roles that may eventually help develop their use in medicine. To support ncRNA research and facilitate retrieval of relevant information regarding miRNAs and lncRNAs from the plethora of published ncRNA-related research, we developed DES-ncRNA ( www...
April 7, 2017: RNA Biology
https://www.readbyqxmd.com/read/28383763/upregulated-mir-132-in-lgr5-gastric-cancer-stem-cell-like-cells-contributes-to-cisplatin-resistance-via-sirt1-creb-abcg2-signaling-pathway
#13
Lanfang Zhang, Xiaohe Guo, Dezhong Zhang, Yingying Fan, Lei Qin, Shuping Dong, Lanfang Zhang
Cisplatin resistance has long been a major problem that restricts its use. A novel paradigm in tumor biology suggests that gastric tumor chemo-resistance is driven by gastric cancer stem cell-like (GCSCs). Growing evidence has indicated that microRNAs (miRNAs) contributes to chemo-resistance in gastric cancer (GC). Here, Lgr5(+) cells derived from gastric cancer cell lines displayed stem cell-like features. Flow cytometry demonstrated the presence of a variable fraction of Lgr5 in 19 out of 20 GC specimens...
April 6, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28377776/isomir2function-an-integrated-workflow-for-identifying-microrna-variants-in-plants
#14
Kun Yang, Gaurav Sablok, Guang Qiao, Qiong Nie, Xiaopeng Wen
In plants, post transcriptional regulation by non-coding RNAs (ncRNAs), in particular miRNAs (19-24 nt) has been involved in modulating the transcriptional landscape in developmental, biotic and abiotic interactions. In past few years, considerable focus has been leveraged on delineating and deciphering the role of miRNAs and their canonical isomiRs in plants. However, proper classification and accurate prediction of plant isomiRs taking into account the relative features by which we define isomiRs, such as templated or non-templated is still lacking...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28376783/genome-wide-analysis-of-microrna-targeting-impacted-by-snps-in-cucumber-genome
#15
Jian Ling, Zhongqin Luo, Feng Liu, Zhenchuan Mao, Yuhong Yang, Bingyan Xie
BACKGROUND: microRNAs (miRNAs) are endogenous small RNAs that play important regulatory functions in plant development. Genetic variations in miRNAs sequences or their target-binding sites (microRNA-target interaction sites) can alter miRNA targets in animal and human. Whether these single nucleotide polymorphisms (SNPs) in plant are functional have not yet been determined. RESULTS: In this study, we constructed leaf, root, and stem-derived small libraries of cucumber (Cucumis sativus) line 9930 (cultivated China-group cucumber) and C...
April 4, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28364124/a-circulating-microrna-signature-capable-of-assessing-the-risk-of-hepatocellular-carcinoma-in-cirrhotic-patients
#16
Ya-Hui Huang, Kung-Hao Liang, Rong-Nan Chien, Tsung-Hui Hu, Kwang-Huei Lin, Chao-Wei Hsu, Chih-Lang Lin, Tai-Long Pan, Po-Yuan Ke, Chau-Ting Yeh
With the availability of potent antiviral therapies, complete suppression of hepatitis B virus (HBV) replication and total eradication of hepatitis C virus (HCV) can now be achieved. Despite these advances, hepatocellular carcinoma (HCC) still develops in a substantial proportion of cirrhotic patients, suggesting that host factors remain critical. Dysregulation of miRNAs is noted in many cancers, and circulating miRNAs can be readily assayed. In this study, we aimed to develop a circulating miRNA signature to assess the risk of HCC in cirrhotic patients...
March 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28351024/evaluating-the-prognostic-value-of-microrna-203-in-solid-tumors-based-on-a-meta-analysis-and-the-cancer-genome-atlas-tcga-datasets
#17
Yingjie Shao, Wendong Gu, Zhonghua Ning, Xing Song, Honglei Pei, Jingting Jiang
BACKGROUND: It has been reported that miR-203 expression was aberrant in various types of cancers, and it could be used as a prognostic biomarker. Therefore, in this study, we aimed to evaluate the prognostic value of miR-203 expression in solid tumors by using meta-analysis and The Cancer Genome Atlas (TCGA) datasets. METHODS: By doing a literature research in PubMed, Embase and the Cochrane Library (last update by December 2016), we were able to identify the studies assessing the prognostic role of miR-203 in various tumors...
March 24, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28348640/exploration-of-small-rna-seq-data-for-small-non-coding-rnas-in-human-colorectal-cancer
#18
Srinivas V Koduru, Amit K Tiwari, Sprague W Hazard, Milind Mahajan, Dino J Ravnic
Background: Improved healthcare and recent breakthroughs in technology have substantially reduced cancer mortality rates worldwide. Recent advancements in next-generation sequencing (NGS) have allowed genomic analysis of the human transcriptome. Now, using NGS we can further look into small non-coding regions of RNAs (sncRNAs) such as microRNAs (miRNAs), Piwi-interacting-RNAs (piRNAs), long non-coding RNAs (lncRNAs), and small nuclear/nucleolar RNAs (sn/snoRNAs) among others. Recent studies looking at sncRNAs indicate their role in important biological processes such as cancer progression and predict their role as biomarkers for disease diagnosis, prognosis, and therapy...
2017: Journal of Genomics
https://www.readbyqxmd.com/read/28347154/-circulating-micrornas-in-the-diagnostics-of-endocrine-neoplasms
#19
Ábel Decmann, Pál Perge, Zoltán Nagy, Henriett Butz, Attila Patócs, Péter Igaz
MicroRNAs (miRNA, miR) are short - 19-25 nucleotide long - single stranded (in their mature form), non-coding RNA molecules that regulate gene expression mostly at the posttranscriptional level. microRNAs are involved in the regulation of various physiological processes such as cell differentiation and proliferation, development, haematopoesis, cell death, while their aberrant expression is observed in numerous diseases, like autoimmune disorders, inflammations, vascular diseases or tumorigenesis. microRNAs are expressed in a tissue specific fashion...
April 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28346818/regulation-of-low-temperature-stress-in-plants-by-micrornas
#20
REVIEW
Swati Megha, Urmila Basu, Nat N V Kav
Low temperature is one of the most common environmental stresses that seriously affects the growth and development of plants. However, plants have the plasticity in their defense mechanisms enabling them to tolerate and, sometimes, even survive adverse environmental conditions. MicroRNAs (miRNAs) are small non-coding RNAs, approximately 19-21 nucleotides in length, and are being increasingly recognized as regulators of gene expression at the post-transcriptional level and have the ability to influence a broad range of biological processes...
March 27, 2017: Plant, Cell & Environment
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