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https://www.readbyqxmd.com/read/29150993/overexpression-of-mir-31-in-peripheral-blood-mononuclear-cells-pbmc-from-patients-with-ankylosing-spondylitis
#1
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/29150941/micrornas-as-predictive-biomarkers-for-myocardial-injury-in-aged-mice-following-myocardial-infarction
#2
Natia Qipshidze Kelm, Kellianne M Piell, Eugenia Wang, Marsha P Cole
The occurrence of myocardial infarction (MI) increases appreciably with age. In the Framingham Heart Study, the incidence of MI more than doubles for men and increases more than 5-fold in women (ages 55 to 64 years compared to 85 to 94 years). MicroRNAs (miRNAs) quantitatively regulate their target's expression post-transcriptionally by either silencing action through binding at the 3'UTR domains or degrading the messages at their coding regions. In either case, these regulations affect the cardiac transcriptional output and cardiac function...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150940/tumor-suppressive-roles-of-%C3%AE-np63%C3%AE-mir-205-axis-in-epithelial-mesenchymal-transition-of-oral-squamous-cell-carcinoma-via-targeting-zeb1-and-zeb2
#3
Yuma Hashiguchi, Shintaro Kawano, Yuichi Goto, Kaori Yasuda, Naoki Kaneko, Taiki Sakamoto, Ryota Matsubara, Teppei Jinno, Yasuyuki Maruse, Hideaki Tanaka, Masahiko Morioka, Taichi Hattori, Shoichi Tanaka, Tamotsu Kiyoshima, Seiji Nakamura
We previously revealed that epithelial-to-mesenchymal transition (EMT) was mediated by ΔNp63β, a splicing variant of ΔNp63, in oral squamous cell carcinoma (OSCC). Recent studies have highlighted the involvement of microRNA (miRNA) in EMT of cancer cells, though the mechanism remains unclear. To identify miRNAs responsible for ΔNp63β-mediated EMT, miRNA microarray analyses were performed by ΔNp63β-overexpression in OSCC cells; SQUU-B, which lacks ΔNp63 expression and displays EMT phenotypes. miRNAs microarray analyses revealed miR-205 was the most up-regulated following ΔNp63β-overexpression...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150939/mir-34b-5p-inhibition-attenuates-lung-inflammation-and-apoptosis-in-an-lps-induced-acute-lung-injury-mouse-model-by-targeting-progranulin
#4
Wang Xie, Qingchun Lu, Kailing Wang, Jingjing Lu, Xia Gu, Dongyi Zhu, Fanglei Liu, Zhongliang Guo
BACKGROUND: Inflammation and apoptosis play important roles in the initiation and progression of acute lung injury (ALI). Our previous study has shown that progranulin (PGRN) exerts lung protective effects during LPS-induced ALI. Here, we have investigated the potential roles of PGRN-targeting microRNAs (miRNAs) in regulating inflammation and apoptosis in ALI and have highlighted the important role of PGRN. METHODS: LPS-induced lung injury and the protective roles of PGRN in ALI were first confirmed...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150907/sensitivity-of-doping-biomarkers-after-administration-of-a-single-dose-testosterone-gel
#5
Jenny Mullen, Annica Börjesson, Oscar Hopcraft, Jenny J Schulze, Magnus Ericsson, Anders Rane, Mikael Lehtihet, Lena Ekström
Micro-doping with testosterone (T) is challenging to detect with the current doping tests. Today, the methods available to detect T are longitudinally monitoring of urine biomarkers in the Athlete Biological Passport (ABP) and measuring the isotopic composition of excreted biomarkers to distinguish the origin of the molecule. In this study, we investigated the detectability of a single dose of 100 mg T gel in 8 healthy male subjects. We also studied which biomarkers were most sensitive to T gel administration, including blood biomarkers...
November 18, 2017: Drug Testing and Analysis
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
#6
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/29149987/inhibition-of-porcine-endogenous-retrovirus-by-multi-targeting-micro-rna-against-long-terminal-region
#7
H-C Chung, V-G Nguyen, W-T Oh, T-M-L Huynh, H-J Moon, J-H Lee, H-K Kim, S-J Park, B-K Park
BACKGROUND: There might be much benefit in xenotransplantation, however, the risk of infections across species barriers remains, especially porcine endogenous retrovirus (PERV). To date, many attempts have been made to knock down active PERVs by inhibitory RNA (RNAi) and micro RNA (miRNA), which target different genes of PERV. There are a few studies that have explored whether targeting promoter regions of PERV could exert an inhibition effect. METHODS: miRNAs were automatically selected based on an online program BLOCK-iT RNAi Designer...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149908/exosomal-micrornas-as-potential-circulating-biomarkers-in-gastrointestinal-tract-cancers-a-systematic-review-protocol
#8
Elmira Gheytanchi, Zahra Madjd, Leila Janani, Arezoo Rasti, Roya Ghods, Fatemeh Atyabi, Mohammad Hossein Asadi Lari, Sadegh Babashah
BACKGROUND: Metastasis is the most frequent type of recurrence in gastrointestinal (GI) cancers, and there is an emerging potential for new diagnostic and therapeutic approaches, especially in the cases of metastatic GI carcinomas. The expression profiles of circulating exosomal microRNAs are of particular interest as novel non-invasive diagnostic and prognostic biomarkers for improved detection of GI cancers in body fluids, especially in the serum of patients with recurrent cancers. The aim of this study is to systematically review primary studies and identify the miRNA profiles of serum exosomes of GI cancers...
November 17, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/29149906/forebrain-specific-conditional-silencing-of-staufen2-alters-synaptic-plasticity-learning-and-memory-in-rats
#9
Stefan M Berger, Iván Fernández-Lamo, Kai Schönig, Sandra M Fernández Moya, Janina Ehses, Rico Schieweck, Stefano Clementi, Thomas Enkel, Sascha Grothe, Oliver von Bohlen Und Halbach, Inmaculada Segura, José María Delgado-García, Agnès Gruart, Michael A Kiebler, Dusan Bartsch
BACKGROUND: Dendritic messenger RNA (mRNA) localization and subsequent local translation in dendrites critically contributes to synaptic plasticity and learning and memory. Little is known, however, about the contribution of RNA-binding proteins (RBPs) to these processes in vivo. RESULTS: To delineate the role of the double-stranded RBP Staufen2 (Stau2), we generate a transgenic rat model, in which Stau2 expression is conditionally silenced by Cre-inducible expression of a microRNA (miRNA) targeting Stau2 mRNA in adult forebrain neurons...
November 17, 2017: Genome Biology
https://www.readbyqxmd.com/read/29149687/pyrrolidinyl-pna-polypyrrole-silver-nanofoam-electrode-as-a-novel-label-free-electrochemical-mirna-21-biosensor
#10
Tawatchai Kangkamano, Apon Numnuam, Warakorn Limbut, Proespichaya Kanatharana, Tirayut Vilaivan, Panote Thavarungkul
A label-free electrochemical miRNA biosensor was developed based on a pyrrolidinyl peptide nucleic acid (acpcPNA)/polypyrrole (PPy)/silver nanofoam (AgNF) modified electrode. The AgNF was electrodeposited as redox indicator on a gold electrode, which was then functionalized with an electropolymerized layer of PPy, a conducting polymer, to immobilize the PNA probes. The fabrication process was investigated by electrochemical impedance spectroscopy. The biosensor was used to detect miRNA-21, a biomarker abnormally expressed in most cancers...
November 6, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29149328/mir858-mediated-regulation-of-flavonoid-specific-myb-transcription-factor-genes-controls-resistance-to-pathogen-infection-in-arabidopsis
#11
Rosany Camargo-Ramírez, Beatriz Val-Torregrosa, Blanca San Segundo
MicroRNAs (miRNAs) are a class of short endogenous non-coding small RNAs that direct post-transcriptional gene silencing in eukaryotes. In plants, the expression of a large number of miRNAs has been shown to be regulated during pathogen infection. However, the functional role of the majority of these pathogen-regulated miRNAs has not been elucidated. In this work, we investigated the role of Arabidopsis miR858 in the defense response of Arabidopsis plants to infection by fungal pathogens with necrotrophic (Plectosphaerella cucumerina) or hemibiotrophic (Fusarium oxysporum and Colletotrichum higginsianum) lifestyles...
November 15, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/29149041/the-hmga1-pseudogene-7-induces-mir-483-and-mir-675-upregulation-by-activating-egr1-through-a-cerna-mechanism
#12
Marco De Martino, Giuseppe Palma, Amalia Azzariti, Claudio Arra, Alfredo Fusco, Francesco Esposito
Several studies have established that pseudogene mRNAs can work as competing endogenous RNAs and, when deregulated, play a key role in the onset of human neoplasias. Recently, we have isolated two HMGA1 pseudogenes, HMGA1P6 and HMGA1P7. These pseudogenes have a critical role in cancer progression, acting as micro RNA (miRNA) sponges for HMGA1 and other cancer-related genes. HMGA1 pseudogenes were found overexpressed in several human carcinomas, and their expression levels positively correlate with an advanced cancer stage and a poor prognosis...
November 17, 2017: Genes
https://www.readbyqxmd.com/read/29148977/the-role-of-micrornas-in-chronic-respiratory-disease-recent-insights
#13
Lindsay R Stolzenburg, Ann Harris
Chronic respiratory diseases encompass a group of diverse conditions affecting the airways, which all impair lung function over time. They include cystic fibrosis, idiopathic pulmonary fibrosis, chronic obstructive pulmonary disease, and asthma, which together affect hundreds of millions of people worldwide. MicroRNAs (miRNAs), a class of small non-coding RNAs involved in post-transcriptional gene repression, are now recognized as major regulators in the development and progression of chronic lung disease. Alterations in miRNA abundance occur in lung tissue, inflammatory cells, and freely circulating in blood and are thought to function both as drivers and modifiers of disease...
November 27, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/29147648/molecular-crosstalking-among-noncoding-rnas-a-new-network-layer-of-genome-regulation-in-cancer
#14
REVIEW
Marco Ragusa, Cristina Barbagallo, Duilia Brex, Angela Caponnetto, Matilde Cirnigliaro, Rosalia Battaglia, Davide Barbagallo, Cinzia Di Pietro, Michele Purrello
Over the past few years, noncoding RNAs (ncRNAs) have been extensively studied because of the significant biological roles that they play in regulation of cellular mechanisms. ncRNAs are associated to higher eukaryotes complexity; accordingly, their dysfunction results in pathological phenotypes, including cancer. To date, most research efforts have been mainly focused on how ncRNAs could modulate the expression of protein-coding genes in pathological phenotypes. However, recent evidence has shown the existence of an unexpected interplay among ncRNAs that strongly influences cancer development and progression...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/29146677/functional-role-and-therapeutic-targeting-of-micrornas-in-inflammatory-bowel-disease
#15
Artin Soroosh, Marina Koutsioumpa, Charalabos Pothoulakis, Dimitrios Iliopoulos
Inflammatory Bowel Diseases (IBD) are chronic inflammatory gastrointestinal diseases, primarily consisting of Ulcerative Colitis (UC) and Crohn's Disease (CD). The complex nature of the disease, as well as the limited therapeutic options characterized by low efficiency and major side effects, shows the importance of developing novel strategies of therapeutic intervention in IBD. Susceptibility loci related to IBD are present only in a small percentage of IBD patients, implying that epigenetic modifications could influence the pathogenesis of the disease...
November 16, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29146584/microrna-tissue-atlas-of-the-malaria-mosquito-anopheles-gambiae
#16
Lena Lampe, Elena A Levashina
Anopheles gambiae mosquitoes transmit the human malaria parasite Plasmodium falciparum, which causes the majority of fatal malaria cases worldwide. The hematophagous life style defines the mosquito reproductive biology and is exploited by P. falciparum for its own sexual reproduction and transmission. The two main phases of the mosquito reproductive cycle, pre-vitellogenic (PV) and post-blood meal (PBM) shape its capacity to transmit malaria. Transition between these phases is tightly coordinated to ensure homeostasis between mosquito tissues and successful reproduction...
November 16, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29146235/macrophages-their-role-activation-and-polarization-in-pulmonary-diseases
#17
REVIEW
Shweta Arora, Kapil Dev, Beamon Agarwal, Pragnya Das, Mansoor Ali Syed
Macrophages, circulating in the blood or concatenated into different organs and tissues constitute the first barrier against any disease. They are foremost controllers of both innate and acquired immunity, healthy tissue homeostasis, vasculogenesis and congenital metabolism. Two hallmarks of macrophages are diversity and plasticity due to which they acquire a wobbling array of phenotypes. These phenotypes are appropriately synchronized responses to a variety of different stimuli from either the tissue microenvironment or - microbes or their products...
November 12, 2017: Immunobiology
https://www.readbyqxmd.com/read/29146158/plasma-microrna-155-5p-is-increased-among-patients-with-chronic-kidney-disease-and-nocturnal-hypertension
#18
Dominika Klimczak, Marek Kuch, Tomasz Pilecki, Dorota Żochowska, Agnieszka Wirkowska, Leszek Pączek
MicroRNAs play multiple roles in the regulation of blood pressure (BP). Nevertheless, to date, no study has assessed the association between microRNA plasma expression and BP control in chronic kidney disease (CKD) patients. Given this background, we evaluated the plasma expression of miR-155-5p, a translational inhibitor of angiotensin receptor type I, in CKD patients, to determine the association between miR-155-5p level and BP control. In this single-center cross-sectional study, we analyzed the miR-155-5p concentration by quantitative reverse transcriptase polymerase chain reaction using the U6 snRNA as a reference gene and 24-hour ambulatory blood pressure monitoring in CKD patients (stage ≥2) in relation to a control group of healthy age-matched and gender-matched individuals, with normal BP proven by the ambulatory blood pressure monitoring...
October 28, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/29146111/microrna-expression-patterns-in-human-anterior-cingulate-and-motor-cortex-a-study-of-dementia-with-lewy-bodies-cases-and-controls
#19
Peter T Nelson, Wang-Xia Wang, Sarah A Janse, Katherine L Thompson
OVERVIEW: MicroRNAs (miRNAs) have been implicated in neurodegenerative diseases including Parkinson's disease and Alzheimer's disease (AD). Here, we evaluated the expression of miRNAs in anterior cingulate (AC; Brodmann area [BA] 24) and primary motor (MO; BA 4) cortical tissue from aged human brains in the University of Kentucky AD Center autopsy cohort, with a focus on dementia with Lewy bodies (DLB). METHODS: RNA was isolated from gray matter of brain samples with pathology-defined DLB, AD, AD+DLB, and low-pathology controls, with n=52 cases initially included (n=23 with DLB), all with low (<4hrs) postmortem intervals...
November 13, 2017: Brain Research
https://www.readbyqxmd.com/read/29145896/downregulation-of-mir-31-stimulates-expression-of-lats2-via-the-hippo-pathway-and-promotes-epithelial-mesenchymal-transition-in-esophageal-squamous-cell-carcinoma
#20
Yanping Gao, Jun Yi, Kai Zhang, Fan Bai, Bing Feng, Rui Wang, Xiaoyuan Chu, Longbang Chen, Haizhu Song
BACKGROUND: Dysregulation of miRNAs is associated with cancer development by coordinately suppressing abundant target genes. Emerging evidence indicates that miR-31 plays a dual role in tumorigenicity. However, whether miR-31 plays as an oncogene in esophageal squamous cell carcinoma (ESCC) and the potential target molecules are still unclear. MiR-31 role in ESCC was investigated and an association of the target molecules with EMT was identified in the progression of ESCC. METHODS: Western blot assays and qRT-PCR was performed to detect the protein and mRNA levels...
November 16, 2017: Journal of Experimental & Clinical Cancer Research: CR
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