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https://www.readbyqxmd.com/read/28231281/the-intron-in-centromeric-noncoding-rna-facilitates-rnai-mediated-formation-of-heterochromatin
#1
Masatoshi Mutazono, Misato Morita, Chihiro Tsukahara, Madoka Chinen, Shiori Nishioka, Tatsuhiro Yumikake, Kohei Dohke, Misuzu Sakamoto, Takashi Ideue, Jun-Ichi Nakayama, Kojiro Ishii, Tokio Tani
In fission yeast, the formation of centromeric heterochromatin is induced through the RNA interference (RNAi)-mediated pathway. Some pre-mRNA splicing mutants (prp) exhibit defective formation of centromeric heterochromatin, suggesting that splicing factors play roles in the formation of heterochromatin, or alternatively that the defect is caused by impaired splicing of pre-mRNAs encoding RNAi factors. Herein, we demonstrate that the splicing factor spPrp16p is enriched at the centromere, and associates with Cid12p (a factor in the RNAi pathway) and the intron-containing dg ncRNA...
February 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28230005/current-mechanism-of-acquired-resistance-to-epidermal-growth-factor-receptor-tyrosine-kinase-inhibitors-and-updated-therapy-strategies-in-human-nonsmall-cell-lung-cancer
#2
REVIEW
Kaixian Zhang, Qianqian Yuan
Lung cancer continues to be a major health problem and the most common cancer-related mortality worldwide with about 80%-85% patients suffering from nonsmall cell lung cancer (NSCLC). More than 80% of NSCLC cases are often diagnosed as advanced stage and harbor epidermal growth factor receptor (EGFR) activating mutation. Although great success in initial response to EGFR-tyrosine kinase inhibitors (EGFR-TKIs) are found in EGFR-mutant NSCLC patients, acquired resistance usually occurs on the continuous treatment...
December 2016: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28226201/genomewide-association-study-of-alcohol-dependence-identifies-risk-loci-altering-ethanol-response-behaviors-in-model-organisms
#3
Amy E Adkins, Laura M Hack, Tim B Bigdeli, Vernell S Williamson, G Omari McMichael, Mohammed Mamdani, Alexis Edwards, Fazil Aliev, Robin F Chan, Poonam Bhandari, Richard C Raabe, Joseph T Alaimo, GinaMari G Blackwell, Arden A Moscati, Ryan S Poland, Benjamin Rood, Diana G Patterson, Dermot Walsh, John B Whitfield, Gu Zhu, Grant W Montgomery, Anjali K Henders, Nicholas G Martin, Andrew C Heath, Pamela A F Madden, Josef Frank, Monika Ridinger, Norbert Wodarz, Michael Soyka, Peter Zill, Marcus Ising, Markus M Nöthen, Falk Kiefer, Marcella Rietschel, Joel Gelernter, Richard Sherva, Ryan Koesterer, Laura Almasy, Hongyu Zhao, Henry R Kranzler, Lindsay A Farrer, Brion S Maher, Carol A Prescott, Danielle M Dick, Silviu A Bacanu, Laura D Mathies, Andrew G Davies, Vladimir I Vladimirov, Mike Grotewiel, M Scott Bowers, Jill C Bettinger, Bradley T Webb, Michael F Miles, Kenneth S Kendler, Brien P Riley
BACKGROUND: Alcohol Dependence (AD) shows evidence for genetic liability, but genes influencing risk remain largely unidentified. METHODS: We conducted a genomewide association study in 706 related AD cases and 1748 unscreened population controls from Ireland. We sought replication in 15,496 samples of European descent. We used model organisms to assess the role of orthologous genes in ethanol response behaviors. We tested one primate-specific gene for expression differences in case/control post-mortem brain tissue...
February 22, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28225791/characterization-of-long-noncoding-rna-and-messenger-rna-signatures-in-melanoma-tumorigenesis-and-metastasis
#4
Siqi Wang, Wenliang Fan, Bing Wan, Mengqi Tu, Feng Jin, Fang Liu, Haibo Xu, Ping Han
The incidence of melanoma, the most aggressive and life-threatening form of skin cancer, has significantly risen over recent decades. Therefore, it is essential to identify the mechanisms that underlie melanoma tumorigenesis and metastasis and to explore novel and effective melanoma treatment strategies. Accumulating evidence s uggests that aberrantly expressed long noncoding RNAs (lncRNAs) have vital functions in multiple cancers. However, lncRNA functions in melanoma tumorigenesis and metastasis remain unclear...
2017: PloS One
https://www.readbyqxmd.com/read/28222667/curcumin-inhibits-cancer-progression-through-regulating-expression-of-micrornas
#5
Siying Zhou, Sijie Zhang, Hongyu Shen, Wei Chen, Hanzi Xu, Xiu Chen, Dawei Sun, Shanliang Zhong, Jianhua Zhao, Jinhai Tang
Curcumin, a major yellow pigment and spice in turmeric and curry, is a powerful anti-cancer agent. The anti-tumor activities of curcumin include inhibition of tumor proliferation, angiogenesis, invasion and metastasis, induction of tumor apoptosis, increase of chemotherapy sensitivity, and regulation of cell cycle and cancer stem cell, indicating that curcumin maybe a strong therapeutic potential through modulating various cancer progression. It has been reported that microRNAs as small noncoding RNA molecules are related to cancer progression, which can be regulated by curcumin...
February 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28220683/analysis-of-distinct-long-noncoding-rna-transcriptional-fingerprints-in-pancreatic-ductal-adenocarcinoma
#6
Xiang Yu, Yang Lin, Wu Sui, Yanfen Zou, Zhongchuan Lv
Pancreatic ductal adenocarcinoma (PDAC) is one of the most aggressive and lethal malignancies with the worst prognosis. Recent studies have demonstrated that long noncoding RNAs (lncRNAs) play critical roles in tumorigenesis and cancer progression. However, the expression pattern and roles of lncRNAs in the development of PDAC remain unknown. Herein, we globally analyzed the lncRNA expression profile in human PDAC and non-tumor tissues using four independent public microarray datasets from Gene Expression Omnibus (GEO)...
February 21, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28214867/the-novel-long-noncoding-rna-tusc7-inhibits-proliferation-by-sponging-mir-211-in-colorectal-cancer
#7
Jian Xu, Rui Zhang, Jian Zhao
BACKGROUND/AIMS: The novel long noncoding RNA (lncRNA) tumor suppressor candidate 7 (TUSC7) has been reported as a potential tumor suppressor, while the functional role of TUSC7 is still unknown in colorectal cancer (CRC). Here, we characterized TUSC7 expression profile in CRC patients and investigated its biological function and potential molecular mechanism. METHODS: RNA isolation, qRT-PCR, cell counter kit-8 assay, cell cycle assay, EdU assay, and western blot were performed...
February 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214646/new-rna-seq-approaches-for-the-study-of-bacterial-pathogens
#8
REVIEW
Antoine-Emmanuel Saliba, Sara C Santos, Jörg Vogel
Understanding how bacteria cause disease requires knowledge of which genes are expressed and how they are regulated during infection. While RNA-seq is now a routine method for gene expression analysis in bacterial pathogens, the past years have also witnessed a surge of novel RNA-seq based approaches going beyond standard mRNA profiling. These include variations of the technique to capture post-transcriptional networks controlled by small RNAs and to discover associated RNA-binding proteins in the pathogen itself...
February 16, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/28214253/long-noncoding-rna-linc00673-is-activated-by-sp1-and-exerts-oncogenic-properties-by-interacting-with-lsd1-and-ezh2-in-gastric-cancer
#9
Mingde Huang, Jiakai Hou, Yunfei Wang, Min Xie, Chenchen Wei, Fengqi Nie, Zhaoxia Wang, Ming Sun
Long noncoding RNAs (lncRNAs) have emerged as important regulators in a variety of human diseases, including cancers. However, the biological function of these molecules and the mechanisms responsible for their alteration in gastric cancer (GC) are not fully understood. In this study, we found that lncRNA LINC00673 is significantly upregulated in gastric cancer. Knockdown of LINC00673 inhibited cell proliferation and invasion and induced cell apoptosis, whereas LINC00673 overexpression had the opposite effect...
February 14, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28213967/extracellular-vesicles-from-bone-marrow-derived-mesenchymal-stem-cells-improve-survival-from-lethal-hepatic-failure-in-mice
#10
Hiroaki Haga, Irene K Yan, Kenji Takahashi, Akiko Matsuda, Tushar Patel
Stem cell-based therapies have potential for treatment of liver injury by contributing to regenerative responses, through functional tissue replacement or paracrine effects. The release of extracellular vesicles (EV) from cells has been implicated in intercellular communication, and may contribute to beneficial paracrine effects of stem cell-based therapies. Therapeutic effects of bone-marrow derived mesenchymal stem cells (MSC) and vesicles released by these cells were examined in a lethal murine model of hepatic failure induced by d-galactosamine/tumor necrosis factor-α (TNF-α)...
February 18, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28213156/myotonic-dystrophy-disease-repeat-range-penetrance-age-of-onset-and-relationship-between-repeat-size-and-phenotypes
#11
REVIEW
Kevin Yum, Eric T Wang, Auinash Kalsotra
Myotonic dystrophy (DM) is an autosomal dominant neuromuscular disease primarily characterized by myotonia and progressive muscle weakness. The pathogenesis of DM involves microsatellite expansions in noncoding regions of transcripts that result in toxic RNA gain-of-function. Each successive generation of DM families carries larger repeat expansions, leading to an earlier age of onset with increasing disease severity. At present, diagnosis of DM is challenging and requires special genetic testing to account for somatic mosaicism and meiotic instability...
February 14, 2017: Current Opinion in Genetics & Development
https://www.readbyqxmd.com/read/28212542/two-stage-genome-wide-association-study-identifies-a-novel-susceptibility-locus-associated-with-melanoma
#12
Katherine J Ransohoff, Wenting Wu, Hyunje G Cho, Harvind C Chahal, Yuan Lin, Hong-Ji Dai, Christopher I Amos, Jeffrey E Lee, Jean Y Tang, David A Hinds, Jiali Han, Qingyi Wei, Kavita Y Sarin
Genome-wide association studies have identified 21 susceptibility loci associated with melanoma. These loci implicate genes affecting pigmentation, nevus count, telomere maintenance, and DNA repair in melanoma risk. Here, we report the results of a two-stage genome-wide association study of melanoma. The stage 1 discovery phase consisted of 4,842 self-reported melanoma cases and 286,565 controls of European ancestry from the 23andMe research cohort and the stage 2 replication phase consisted of 1,804 melanoma cases and 1,026 controls from the University of Texas M...
February 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28210621/circular-rnas-in-cardiovascular-disease-an-overview
#13
REVIEW
Ximin Fan, Xinyu Weng, Yifan Zhao, Wei Chen, Tianyi Gan, Dachun Xu
Circular RNA (circRNA), a novel type of endogenous noncoding RNA (ncRNA), has become a research hotspot in recent years. CircRNAs are abundant and stably exist in creatures, and they are found with covalently closed loop structures in which they are quite different from linear RNAs. Nowadays, an increasing number of scientists have demonstrated that circRNAs may have played an essential role in the regulation of gene expression, especially acting as miRNA sponges, and have described the potential mechanisms of several circRNAs in diseases, hinting at their clinical therapeutic values...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28209295/aluternative-regulation-for-gene-expression
#14
REVIEW
Ling-Ling Chen, Li Yang
Alu elements belong to the primate-specific SINE family of retrotransposons and constitute almost 11% of the human genome. Alus are transcribed by RNA polymerase (Pol) III and are inserted back into the genome with the help of autonomous LINE retroelements. Since Alu elements are preferentially located near to or within gene-rich regions, they can affect gene expression by distinct mechanisms of action at both DNA and RNA levels. In this review we focus on recent advances of how Alu elements are pervasively involved in gene regulation...
February 10, 2017: Trends in Cell Biology
https://www.readbyqxmd.com/read/28209205/long-noncoding-agap2-as1-is-activated-by-sp1-and-promotes-cell-proliferation-and-invasion-in-gastric-cancer
#15
Fuzhen Qi, Xianghua Liu, Hao Wu, Xiang Yu, Chenchen Wei, Xiaodan Huang, Guozhong Ji, Fengqi Nie, Keming Wang
BACKGROUND: Long noncoding RNAs (lncRNAs) have emerged as important regulators of tumorigenesis and cancer progression. Recently, the lncRNA AGAP2-AS1 was identified as an oncogenic lncRNA in human non-small cell lung cancer (NSCLC) and its elevated expression was linked to NSCLC development and progression. However, the expression pattern and molecular mechanism of AGAP2-AS1 in gastric cancer (GC) have not been characterized. METHODS: Bioinformatic analysis was performed to determine AGAP2-AS1 expression levels in the GC and normal tissues using gene profiling data from the Gene Expression Omnibus...
February 16, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28209170/lincrnafezf1-as1-represses-p21-expression-to-promote-gastric-cancer-proliferation-through-lsd1-mediated-h3k4me2-demethylation
#16
Yan-Wen Liu, Rui Xia, Kai Lu, Min Xie, Fen Yang, Ming Sun, Wei De, Cailian Wang, Guozhong Ji
BACKGROUND: Although the prognosis of gastric cancer patients have a favorable progression, there are some patients with unusual patterns of locoregional and systemic recurrence. Therefore, a better understanding of early molecular events of the disease is needed. Current evidences demonstrate that long noncoding RNAs (lncRNAs) may be an important class of functional regulators involved in human gastric cancers development. Our previous studies suggest that HOTAIR contributes to gastric cancer development, and the overexpression of HOTAIR predicts a poor prognosis...
February 16, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28208522/re-integrative-analyses-reveal-a-long-noncoding-rna-mediated-sponge-regulatory-network-in-prostate-cancer
#17
Anthony Atala
No abstract text is available yet for this article.
March 2017: Journal of Urology
https://www.readbyqxmd.com/read/28207848/resolving-host-pathogen-interactions-by-dual-rna-seq
#18
REVIEW
Alexander J Westermann, Lars Barquist, Jörg Vogel
The transcriptome is a powerful proxy for the physiological state of a cell, healthy or diseased. As a result, transcriptome analysis has become a key tool in understanding the molecular changes that accompany bacterial infections of eukaryotic cells. Until recently, such transcriptomic studies have been technically limited to analyzing mRNA expression changes in either the bacterial pathogen or the infected eukaryotic host cell. However, the increasing sensitivity of high-throughput RNA sequencing now enables "dual RNA-seq" studies, simultaneously capturing all classes of coding and noncoding transcripts in both the pathogen and the host...
February 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28206970/genetic-variation-in-long-noncoding-rnas-and-the-risk-of-nonalcoholic-fatty-liver-disease
#19
Silvia Sookoian, Cristian Rohr, Adrián Salatino, Hernán Dopazo, Tomas Fernandez Gianotti, Gustavo O Castaño, Carlos J Pirola
: The human transcriptome comprises a myriad of non protein-coding RNA species, including long noncoding RNAs (lncRNAs), which have a remarkable role in transcriptional and epigenetic regulation. We hypothesized that variants in lncRNAs influence the susceptibility to nonalcoholic fatty liver disease (NAFLD). Using next generation sequencing, we performed a survey of genetic variation associated with randomly selected lncRNA-genomic regions located within both experimentally validated and computationally predicted regulatory elements...
February 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28202761/the-long-noncoding-rna-neat1-exerts-anti-hantaviral-effects-by-acting-as-a-positive-feedback-for-rig-i-signaling
#20
Hongwei Ma, Peijun Han, Wei Ye, Hesong Chen, Xuyang Zheng, Linfeng Cheng, Liang Zhang, Lan Yu, Xing'an Wu, Zhikai Xu, Yingfeng Lei, Fanglin Zhang
Hantavirus infection, which causes zoonotic diseases with a high mortality rate in humans, has long been a global public health concern. Over the past decades, accumulating evidence suggests that long noncoding RNAs (lncRNAs) play key regulatory roles in innate immunity. However, the involvement of host lncRNAs in hantaviral control remains uncharacterized. In this study, we identified the lncRNA, NEAT1, as a vital antiviral modulator. NEAT1 was dramatically upregulated after Hantaan virus (HTNV) infection, whereas its downregulation in vitro or in vivo delayed host innate immune responses and aggravated HTNV replication...
February 15, 2017: Journal of Virology
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