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Mir-155

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https://www.readbyqxmd.com/read/28747548/long-non-coding-rna-miat-promotes-breast-cancer-progression-and-functions-as-cerna-to-regulate-dusp7-expression-by-sponging-mir-155-5p
#1
Tian Luan, Ximei Zhang, Shuyuan Wang, Yan Song, Shunheng Zhou, Jing Lin, Weiwei An, Weiguang Yuan, Yue Yang, Huilong Cai, Qingyuan Zhang, Lihong Wang
Long non-coding RNAs (lncRNA) have been reported as key regulators in the progression and metastasis of breast cancer. In this study, we found that the lncRNA myocardial infarction associated transcript (MIAT) expression was upregulated in breast cancer in The Cancer Genome Atlas (TCGA) data sets. We validated that MIAT was higher in breast cancer cell lines and advanced breast tumors than in normal controls. And MIAT overexpression associated with TNM stage and lymphnode metastasis. Knockdown MIAT inhibited breast cancer cell proliferation and promoted apoptosis...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28747214/culturing-and-transcriptome-profiling-of-progenitor-like-colonies-derived-from-adult-mouse-pancreas
#2
Dongshen Ma, Shanshan Tang, Jing Song, Qiong Wu, Fangfang Zhang, Yun Xing, Yi Pan, Yanfeng Zhang, Jingwei Jiang, Yubin Zhang, Liang Jin
BACKGROUND: Transplantation of insulin-producing cells is considered an important diabetes therapy. Many research studies have shown that insulin-producing cells can be derived from the in-vitro cultured pancreatic colonies with self-renewal ability and multilineage potential. Even though these progenitor-like colonies have been prepared from adult pancreas cells, the efficient culture method is hardly established and regulation of the colonies is rarely known. We confirmed previously that single cells acquired from adult mouse pancreas could form cyst-like colonies in a 3D semi-solid system containing Matrigel and methylcellulose...
July 26, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28739526/chronic-mild-stress-exacerbates-severity-of-experimental-autoimmune-encephalomyelitis-in-association-with-altered-non-coding-rna-and-metabolic-biomarkers
#3
Brietta Gerrard, Vaibhav Singh, Olena Babenko, Isabelle Gauthier, V Wee Yong, Igor Kovalchuk, Artur Luczak, Gerlinde A S Metz
The causal factors determining the onset and severity of multiple sclerosis (MS) are not well understood. Here, we investigated the influence of chronic stress on clinical symptoms, metabolic and epigenetic manifestations of experimental autoimmune encephalomyelitis (EAE), a common animal model of MS. Lewis rats were immunized for monophasic EAE with MBP69-88 and were exposed to chronic stress for 37 days starting 7 days prior to immunization. The exposure to stress accelerated and exacerbated the clinical symptoms of EAE...
July 21, 2017: Neuroscience
https://www.readbyqxmd.com/read/28737113/micrornas-roles-in-regulating-neuroinflammation
#4
Andrew D Gaudet, Laura K Fonken, Linda R Watkins, Randy J Nelson, Phillip G Popovich
MicroRNAs (miRNAs) are small noncoding RNAs that broadly affect cellular and physiological function in all multicellular organisms. Here, the role of miRNAs in neuroinflammation is considered. miRNAs are 21- to 23-oligonucleotide RNAs that regulate translation of specific RNAs by binding to complementary regulatory RNA sequences, thereby causing mRNA degradation or sequestration. More than 5000 miRNAs likely exist in humans, and each miRNA binds an average of 200 RNAs. Specific immunomodulatory miRNAs can regulate a set of RNAs in a coordinated manner, suggesting that effective miRNA-based therapeutic manipulations for neuroinflammatory conditions may be revealed...
July 1, 2017: Neuroscientist: a Review Journal Bringing Neurobiology, Neurology and Psychiatry
https://www.readbyqxmd.com/read/28731457/mir-155-mir-150-network-regulates-progression-through-the-disease-phases-of-chronic-lymphocytic-leukemia
#5
K Vargova, M Pesta, P Obrtlikova, N Dusilkova, L Minarik, J Vargova, A Berkova, Z Zemanova, K Michalova, M Spacek, M Trneny, T Stopka
No abstract text is available yet for this article.
July 21, 2017: Blood Cancer Journal
https://www.readbyqxmd.com/read/28729651/combination-of-ginsenoside-rb1-and-rd-protects-the-retina-against-bright-light-induced-degeneration
#6
Minjuan Bian, Xiaoye Du, Peiwei Wang, Jingang Cui, Jing Xu, Jiangping Gu, Teng Zhang, Yu Chen
Photoreceptor degeneration is a central pathology of various retinal degenerative diseases which currently lack effective therapies. Antioxidant and anti-inflammatory activities are noted for Panax notoginsenoside saponins (PNS) and related saponin compound(s). However, the photoreceptor protective potentials of PNS or related saponin compound(s) remain unknown. The current study revealed that PNS protected against photoreceptor loss in bright light-exposed BALB/c mice. Combination of ginsenoside Rb1 and Rd, two major saponin compounds of PNS, recapitulated the retinal protection of PNS and attenuated retinal oxidative stress and inflammatory changes...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28727756/dysregulation-of-micrornas-and-renin-angiotensin-system-in-high-salt-diet-induced-cardiac-dysfunction-in-uninephrectomized-rats
#7
Venkateswara Rao Amara, Sunil Kumar Surapaneni, Kulbhushan Tikoo
Uninephrectomy is not associated with major adverse events in cardiovascular and renal functions of live kidney donors. The effect of high salt diet on the quality of life of live kidney donors is largely unknown. Hence in this study, we aimed to determine the effect of high salt diet on the alterations of renin-angiotensin system and microRNAs leading to CV and renal dysfunction in uninephrectomized rats. In order to mimic clinical scenario, uninephrectomized male Sprague Dawley rats were fed initially with normal pellet diet for 12 weeks and then for 20 weeks with high salt (10% w/w NaCl) diet...
2017: PloS One
https://www.readbyqxmd.com/read/28724215/melatonin-inhibits-proliferation-and-invasion-via-repression-of-mirna-155-in-glioma-cells
#8
Junyi Gu, Zhongsheng Lu, Chenghong Ji, Yuchao Chen, Yuzhao Liu, Zhe Lei, Longqiang Wang, Hong-Tao Zhang, Xiangdong Li
Melatonin, an indolamine mostly synthesized in the pineal gland, exerts the anti-cancer effect by various mechanisms in glioma cells. Our previous study showed that miR-155 promoted glioma cell proliferation and invasion. However, the question of whether melatonin may inhibit glioma by regulating miRNAs has not yet been addressed. In this study, we found that melatonin (100μM, 1μM and 1nM) significantly inhibited the expression of miR-155 in human glioma cell lines U87, U373 and U251. Especially, the lowest expression of miR-155 was detected in 1μM melatonin-treated glioma cells...
July 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28720071/developmental-expression-and-dysregulation-of-mir-146a-and-mir-155-in-down-s-syndrome-and-mouse-models-of-down-s-syndrome-and-alzheimer-s-disease
#9
A Arena, A M Iyer, I Milenkovic, G G Kovács, I Ferrer, M Perluigi, E Aronica
miR-146a and miR-155 are key regulators of the innate immune response. We hypothesized that an inflammation-mediated dysregulation of these miRNAs may occur in patients with Down syndrome (DS) and Alzheimer's disease (AD). The miRNA expression patterns were investigated by in situ hybridization in developing hippocampus from controls, patients with DS and in adults with AD pathology (DS and sporadic AD; sAD). quantitative real-time PCR was employed to evaluate the miRNA levels in the hippocampus of sAD and in mouse models of DS and AD...
July 6, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28719898/role-of-mir-155-signal-pathway-in-regulating-podocyte-injury-induced-by-tgf-%C3%AE-1
#10
Xu Lin, Xintng Zhen, Haiting Huang, Haohao Wu, Yanwu You, Pengwei Guo, Xiangjun Gu, Fafen Yang
BACKGROUND/AIMS: Transforming growth factor beta 1 (TGF-β1) plays a critical role in the pathogenesis of glomerulosclerosis. The purpose of this study was to examine the effects of inhibition of miR-155 on podocyte injury induced by TGF-β1 and to determine further molecular mediators involved in the effects of miR-155. METHODS: Conditionally immortalized podocytes were cultured in vitro and they were divided into four groups: control; TGF-β1 treatment; TGF-β1 with miR-155 knockdown [using antisense oligonucleotides against miR-155 (ASO-miR-155)] and TGF-β1 with negative control antisense oligonucleotides (ASO-NC)...
July 18, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28717125/micrornas-with-prognostic-significance-in-bladder-cancer-a-systematic-review-and-meta-analysis
#11
Yongpeng Xie, Xin Ma, Luyao Chen, Hongzhao Li, Liangyou Gu, Yu Gao, Yu Zhang, Xintao Li, Yang Fan, Jianwen Chen, Xu Zhang
The aim of this study was to systematically review articles that investigated the prognostic significance of different microRNAs in bladder cancer (BC). We systematically searched PubMed, Web of Science, and Embase to identify relevant studies until March 2016. After screening, 26 studies that involved 2753 patients were included. Results suggested that many miRs expression aberration may predict prognosis in patients with BC. There are six miRs (miR-21, miR-143, miR-155, miR-200, miR-214, and miR-222) were reported by at least two studies, and we performed meta-analysis in the corresponding studies...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28700503/mir-210-and-mir-155-as-potential-diagnostic-markers-for-pre-eclampsia-pregnancies
#12
Lu Gan, Zheng Liu, Ming Wei, Yulong Chen, Xiaomei Yang, Lihong Chen, Xiaomin Xiao
Pre-eclampsia (PE) is one of the leading causes of maternal and neonatal morbidity and mortality. In recent years, many studies have shown that microRNAs (miRNA) play important roles in the development of PE. However, the molecular pathogenesis of PE remains unknown.In the present study, we performed a case-control study to verify the differential expression of 4 candidate miRNAs (miR-210, miR-155, miR-125b-5p, and miR-125a-5p) in 20 PE pregnancies and 20 healthy pregnancies. The real-time quantitative reverse transcriptase-polymerase chain reaction has been utilized to estimate the Ct values in both groups...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28697793/collagen-triple-helix-repeat-containing-1-negatively-regulated-by-microrna-30c-promotes-cell-proliferation-and-metastasis-and-indicates-poor-prognosis-in-breast-cancer
#13
Yuan-Hui Lai, Jian Chen, Xiao-Ping Wang, Yan-Qing Wu, Hai-Tao Peng, Xiao-Hong Lin, Wen-Jian Wang
BACKGROUND: Collagen triple helix repeat containing-1 (CTHRC1), which was firstly identified overexpressed in the adventitia and neointima of injured rat arteries, could inhibit collagen expression and increase cell migration. It was then found to be ubiquitously expressed in numerous cell types such as fibroblasts and smooth muscle cells, and aberrantly up-regulated in several malignant tumors. However, the functional role of CTHRC1 and its related mechanism in breast cancer still remains unclear...
July 12, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28694807/brucella-omp25-upregulates-mir-155-mir-21-5p-and-mir-23b-to-inhibit-interleukin-12-production-via-modulation-of-programmed-death-1-signaling-in-human-monocyte-macrophages
#14
Beibei Cui, Wenli Liu, Xiaoya Wang, Yu Chen, Qian Du, Xiaomin Zhao, Hai Zhang, Shan-Lu Liu, Dewen Tong, Yong Huang
Brucella spp. infection results in compromised Type1 (Th1) cellular immune response. Several reports have described an immunomodulatory function for Brucella major outer membrane protein Omp25. However, the mechanism by which Omp25 modulates macrophage dysfunction has not been defined. Herein, we reported that Omp25-deficient mutant of Brucella suis exhibited an enhanced ability to induce interleukin (IL)-12 whereas ectopic expression of Omp25 protein inhibited TLR agonists-induced IL-12 p70 production through suppression of both IL-12 p40 and p35 subunit expression in THP-1 cells...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28694799/a-tiny-rna-that-packs-a-big-punch-the-critical-role-of-a-viral-mir-155-ortholog-in-lymphomagenesis-in-marek-s-disease
#15
REVIEW
Guoqing Zhuang, Aijun Sun, Man Teng, Jun Luo
MicroRNAs (miRNAs) are small non-coding RNAs that have been identified in animals, plants, and viruses. These small RNAs play important roles in post-transcriptional regulation of various cellular processes, including development, differentiation, and all aspects of cancer biology. Rapid-onset T-cell lymphoma of chickens, namely Marek's disease (MD), induced by Gallid alphaherpesvirus 2 (GaHV2), could provide an ideal natural animal model for herpesvirus-related cancer research. GaHV2 encodes 26 mature miRNAs derived from 14 precursors assembled in three distinct gene clusters in the viral genome...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28694210/circulating-microrna-expression-as-predictor-of-preeclampsia-and-its-severity
#16
Deeba S Jairajpuri, Zainab H Malalla, Naeema Mahmood, Wassim Y Almawi
Preeclampsia (PE) is a pregnancy syndrome characterized by hypertension and proteinuria, and a leading cause of maternal and fetal morbidity and mortality, with poorly defined pathophysiological mechanisms remain. Circulating microRNAs (miRNAs) are small, noncoding RNA molecules, which negatively regulate gene expression, and considered as promising biomarkers for PE. The objective of the study was to evaluate circulating miRNA signatures in women with PE compared to healthy women, and in women sub-grouped per PE severity...
July 7, 2017: Gene
https://www.readbyqxmd.com/read/28692806/microrna-155-3p-mediates-tnf-%C3%AE-inhibited-cementoblast-differentiation
#17
X Wang, H Sun, H Liao, C Wang, C Jiang, Y Zhang, Z Cao
Periodontitis is a prevalent and chronic inflammatory disease that is interrelated with systemic health. Periodontitis can be promoted by tumor necrosis factor α (TNF-α). Cementum, a vital part of the periodontium, is a bone-like mineralized tissue that is produced by cementoblasts. Our laboratory previously revealed that TNF-α inhibits cementoblast differentiation and mineralization. However, how TNF-α modulates cementoblast differentiation and mineralization remains largely unknown. MicroRNA-155 (miR-155) is induced and regulates TNF-α-inhibited osteogenic differentiation...
July 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28688901/microrna-155-regulates-arsenite-induced-malignant-transformation-by-targeting-nrf2-mediated-oxidative-damage-in-human-bronchial-epithelial-cells
#18
Chengzhi Chen, Xuejun Jiang, Shiyan Gu, Zunzhen Zhang
Arsenite is a well-documented human lung carcinogen but the detailed mechanisms of carcinogenesis remain unclear. In this study, human bronchial epithelial (16-HBE) cells were continuously exposed to 2.5μM arsenite for about 13 weeks to induce the phenotypes of malignant transformation. Our results showed that Nrf2 expression was gradually decreased whereas no significant change was observed on NF-κB activation with increased time of arsenite exposure. To test the roles of Nrf2-meidtaed oxidative damage in the arsenite-induced malignant transformation, we compared the levels of cGMP, PKG and oxidative damage-related indicators between arsenic-transformed cells and control cells...
July 6, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28688309/programmable-strand-displacement-based-magnetic-separation-for-simultaneous-amplified-detection-of-multiplex-micrornas-by-chemiluminescence-imaging-array
#19
Shuzhen Yue, Tingting Zhao, Sai Bi, Zhipeng Zhang
High throughput analysis of miRNAs is of great significance to clinical and biomedical applications. In this work, we have developed a highly sensitive and selective chemiluminescence imaging array (CLIA) for simultaneous detection of three miRNAs with high throughput, easy operation and low cost. In this assay, three kinds of hairpins that can specially recognize respective miRNAs (miR-155, miR-let-7a and miR-141) are parallel modified on the magnetic beads (MBs). The employment of MBs enables quick sorting of multiplex targets in high yield and purity with high throughput...
June 28, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28687015/micro-rna-155-plays-a-critical-role-in-the-initiation-of-food-allergen-related-inflammation-in-the-intestine
#20
Ri-Tian Lin, Jiang-Qi Liu, Hui-Ying Lu, Ya-Mei Chen, Li Guan, Zhi-Gang Liu, Zhan-Ju Liu, Ping-Chang Yang
The pathogenesis of food allergy (FA) is to be further investigated. Regulatory B cells (B10 cell) play a critical in the maintenance of the homeostasis in the intestine. Deregulation of B10 cell is associated with immune inflammation. Micro RNA (miR) 155 is involved in affecting immune cell function. This study tests a hypothesis that miR-155 affects the B10 cell function to facilitate the initiation of FA. In this study, BALB/c mice were sensitized to ovalbumin (OVA) to induce FA-like inflammation in the intestine...
June 28, 2017: Oncotarget
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