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Lnc RNA

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https://www.readbyqxmd.com/read/29216366/lncrna-lnc-ri-regulates-homologous-recombination-repair-of-dna-double-strand-breaks-by-stabilizing-rad51-mrna-as-a-competitive-endogenous-rna
#1
Liping Shen, Qi Wang, Ruixue Liu, Zhongmin Chen, Xueqing Zhang, Pingkun Zhou, Zhidong Wang
DNA double-strand break (DSB) repair is critical for the maintenance of genome stability. The current models of the mechanism of DSB repair are based on studies of DNA repair proteins. Long non-coding RNAs (lncRNAs) have recently emerged as new regulatory molecules, with diverse functions in biological processes. In the present study, we found that expression of the ionizing radiation-inducible lncRNA, lnc-RI, was correlate negatively with micronucleus frequencies in human peripheral blood lymphocytes. Knockdown of lnc-RI significantly increased spontaneous DSBs levels, which was confirmed to be associated with the decreased efficiency of homologous recombination (HR) repair of DSBs...
December 4, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29213066/crispr-cas9-mediated-mutation-of-mouse-il-1%C3%AE-nuclear-localisation-sequence-abolishes-expression
#2
Michael J D Daniels, Antony D Adamson, Neil Humphreys, David Brough
Inflammation is a host defense process against infection. Inflammatory mediators include cytokines of the interleukin-1 family, such as IL-1α and IL-1β. Unlike IL-1β, IL-1α carries an N-terminal nuclear localisation sequence (NLS) and is trafficked to the nucleus. The importance of IL-1α nuclear localisation is poorly understood. Here, we used CRISPR/Cas9 to make inactivating mutations to the NLS on the Il1a gene. A colony of NLS mutant mice was successfully generated with precise knock-in mutations to incapacitate NLS function...
December 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29207090/long-intergenic-non%C3%A2-coding-rna%C3%A2-p21-mediates-cardiac-senescence-via-the-wnt-%C3%AE-%C3%A2-catenin-signaling-pathway-in-doxorubicin-induced-cardiotoxicity
#3
Zhongdong Xie, Wenzheng Xia, Meng Hou
Doxorubicin (Dox)-induced cardiotoxicity has been a well‑known phenomenon to clinicians and scientists for decades. It has been confirmed that Dox‑dependent cardiotoxicity is accompanied by cardiac cellular senescence. However, the molecular mechanisms underlying Dox cardiotoxicity remains to be fully elucidated. Long non‑coding (lnc) RNAs regulate gene transcription and the fate of post‑transcriptional mRNA, which affects a broad range of age‑associated physiological and pathological conditions, including cardiovascular disease and cellular senescence...
November 28, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29196750/a-novel-y-specific-long-non-coding-rna-associated-with-cellular-lipid-accumulation-in-hepg2-cells-and-atherosclerosis-related-genes
#4
Elsa Molina, Guat S Chew, Stephen A Myers, Elyse M Clarence, James M Eales, Maciej Tomaszewski, Fadi J Charchar
There is an increasing appreciation for the role of the human Y chromosome in phenotypic differences between the sexes in health and disease. Previous studies have shown that genetic variation within the Y chromosome is associated with cholesterol levels, which is an established risk factor for atherosclerosis, the underlying cause of coronary artery disease (CAD), a major cause of morbidity and mortality worldwide. However, the exact mechanism and potential genes implicated are still unidentified. To date, Y chromosome-linked long non-coding RNAs (lncRNAs) are poorly characterized and the potential link between these new regulatory RNA molecules and hepatic function in men has not been investigated...
December 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29190961/long-noncoding-rna-ccat1-functions-as-a-cerna-to-antagonize-the-effect-of-mir-410-on-the-down-regulation-of-itpkb-in-human-hct-116-and-hct-8-cells
#5
Bo Li, Chong Shi, Jingming Zhao, Bai Li
Colorectal cancer is one of the most common malignancies, which has seriously affected people's health. Abnormal expression of long non-coding RNAs and microRNAs are closely related to the process of occurrence, development, invasion and metastasis of colorectal cancer. However, the effect of lnc CCAT1 on human HCT-116/HCT-8 cells and its potential mechanism were investigated. In present study, differential expression of CCAT1, miR-410 and ITPKB were detected in colon cancer tissues and adjacent parts. Then the prediction programs were applied to predict the target genes of miR-410...
November 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29158265/topical-mevastatin-promotes-wound-healing-by-inhibiting-the-transcription-factor-c-myc-via-the-glucocorticoid-receptor-and-the-long-noncoding-rna-gas5
#6
Andrew P Sawaya, Irena Pastar, Olivera Stojadinovic, Sonja Lazovic, Stephen C Davis, Joel Gil, Robert S Kirsner, Marjana Tomic-Canic
Diabetic foot ulcers (DFU), a life-threatening complication of diabetes mellitus, have limited treatment options, often resulting in amputations. HMG-CoA reductase inhibitors such as statins are cholesterol-reducing agents that may provide a new therapeutic option. Statins target the cholesterol pathway and block the synthesis of the wound-healing inhibitors farnesyl pyrophosphate (FPP) and cortisol, ligands for the glucocorticoid receptor (GR). Here we demonstrate that the naturally occurring statin, mevastatin, reverses FPP's effects and promotes healing by using in vitro wound healing assays, human ex vivo and porcine in vivo wound models, and DFU tissue...
November 20, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29155520/high-expression-level-of-long-non-coding-rna-hotair-is-associated-with-poor-overall-survival-in-gastric-cancer-patients-evidence-from-meta-analysis
#7
Mingxu Da, Jichun Ma, Yongbin Zhang, Jian Yang, Jibin Yao, Boyuan Huang, Hong Ma, Long Ge
PURPOSE: Although several studies have investigated the association between the development of gastric cancer (GC) and the expression level of long non-coding (lnc) RNA HOTAIR, no clear evidence about whether its expression is associated with the overall survival (OS) of GC patients exists. In this study we tried to explore the association between lncRNA HOTAIR expression levels with OS and other clinical features in GC patients. METHODS: Databases including PubMed, EMBASE and the Cochrane Library were used to search eligible studies...
July 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29147069/expression-profiling-of-long-noncoding-rna-splice-variants-in-human-microvascular-endothelial-cells-lipopolysaccharide-effects-in-vitro
#8
Imran H Chowdhury, Hema P Narra, Abha Sahni, Kamil Khanipov, Casey L C Schroeder, Jignesh Patel, Yuriy Fofanov, Sanjeev K Sahni
Endothelial cell interactions with lipopolysaccharide (LPS) involve both activating and repressing signals resulting in pronounced alterations in their transcriptome and proteome. Noncoding RNAs are now appreciated as posttranscriptional and translational regulators of cellular signaling and responses, but their expression status and roles during endothelial interactions with LPS are not well understood. We report on the expression profile of long noncoding (lnc) RNAs of human microvascular endothelial cells in response to LPS...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/29138845/long-noncoding-rna-lnc%C3%A2-egfr-promotes-cell-proliferation-and-inhibits-cell-apoptosis-via-regulating-the-expression-of-egfr-in-human-tongue-cancer
#9
Tingting Sun, Lin Tang, Miaomiao Zhang
Tongue cancer remains a difficult disease to overcome. Long noncoding RNAs (LncRNAs) have been shown to serve significant roles in the diagnosis and treatment of tongue cancer. Herein, the present study aimed to investigate the role of a newly‑discovered Lnc, Lnc‑EGFR in tongue cancer. The results showed that the transcript level of Lnc‑EGFR was upregulated in patients with tongue cancer and in cultured tongue cancer cell lines. Consistently, expression of EGFR was also elevated selectively in cancerous tissues and malignant cell lines...
November 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29130936/jak2-binding-long-noncoding-rna-promotes-breast-cancer-brain-metastasis
#10
Shouyu Wang, Ke Liang, Qingsong Hu, Ping Li, Jian Song, Yuedong Yang, Jun Yao, Lingegowda Selanere Mangala, Chunlai Li, Wenhao Yang, Peter K Park, David H Hawke, Jianwei Zhou, Yan Zhou, Weiya Xia, Mien-Chie Hung, Jeffrey R Marks, Gary E Gallick, Gabriel Lopez-Berestein, Elsa R Flores, Anil K Sood, Suyun Huang, Dihua Yu, Liuqing Yang, Chunru Lin
Conventional therapies for breast cancer brain metastases (BCBMs) have been largely ineffective because of chemoresistance and impermeability of the blood-brain barrier. A comprehensive understanding of the underlying mechanism that allows breast cancer cells to infiltrate the brain is necessary to circumvent treatment resistance of BCBMs. Here, we determined that expression of a long noncoding RNA (lncRNA) that we have named lncRNA associated with BCBM (Lnc-BM) is prognostic of the progression of brain metastasis in breast cancer patients...
November 13, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29122971/poly-a-site-choice-and-pol2-ctd-serine-5-status-govern-lncrna-control-of-phosphate-responsive-tgp1-gene-expression-in-fission-yeast
#11
Ana M Sanchez, Stewart Shuman, Beate Schwer
Expression of fission yeast glycerophosphate transporter Tgp1 is repressed in phosphate-rich medium and induced during phosphate starvation. Repression is enforced by transcription of the nc-tgp1 locus upstream of tgp1 to produce a long noncoding (lnc) RNA. Here we identify two essential elements of the nc-tgp1 promoter: a TATA box (-30)TATATATA(-23) and a HomolD box (-64)CAGTCACA(-57), mutations of which inactivate the nc-tgp1 promoter and de-repress the downstream tgp1 promoter under phosphate-replete conditions...
November 9, 2017: RNA
https://www.readbyqxmd.com/read/29119346/structure-target-specificity-and-expression-of-pn_lnc_n13-a-long-non-coding-rna-differentially-expressed-in-apomictic-and-sexual-paspalum-notatum
#12
Ana Ochogavía, Giulio Galla, José Guillermo Seijo, Ana María González, Michele Bellucci, Fulvio Pupilli, Gianni Barcaccia, Emidio Albertini, Silvina Pessino
KEY MESSAGE: ncRNA PN_LNC_N13 shows contrasting expression in reproductive organs of sexual and apomictic Paspalum notatum genotypes. Apomictic plants set genetically maternal seeds whose embryos derive by parthenogenesis from unreduced egg cells, giving rise to clonal offspring. Several Paspalum notatum apomixis related genes were identified in prior work by comparative transcriptome analyses. Here, one of these candidates (namely N13) was characterized. N13 belongs to a Paspalum gene family including 30-60 members, of which at least eight are expressed at moderate levels in florets...
November 8, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/29108989/up-regulated-lnc-snhg1-contributes-to-osteosarcoma-progression-through-sequestration-of-mir-577-and-activation-of-wnt2b-wnt-%C3%AE-catenin-pathway
#13
Zhe Jiang, Chunshan Jiang, Jinnv Fang
Long noncoding RNA small nucleolar RNA host gene 1 (lnc-SNHG1) was reported to play an oncogenic role in the progression of cancers. However, the roles of SNHG1 and its molecular mechanism in osteosarcoma (OS) cells are largely unknown. In present study, we found that the expression of SNHG1 was up-regulated in OS tissues and cell lines. OS patients with the high SNHG1 expression were positively correlated with tumor size, TNM stage and lymph node metastasis. In addition, SNHG1 overexpression promoted cell proliferation, cell migration and EMT process in U2OS and MG63 cells and tumor growth in vivo...
November 8, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29106055/lnc-ntf3-5-promotes-osteogenic-differentiation-of-maxillary-sinus-membrane-stem-cells-via-sponging-mir-93-3p
#14
Wei Peng, Shuang-Xi Zhu, Jin Wang, Li-Li Chen, Jun-Quan Weng, Song-Ling Chen
BACKGROUND: The function and the mechanism of long non-coding RNAs (lncRNAs) on the osteogenic differentiation of maxillary sinus membrane stem cells (MSMSCs) remain largely unknown. MATERIALS AND METHODS: The expression of lnc-NTF3-5 and Runt-related transcription factor 2 (RUNX2), Osterix (OSX), and Alkaline Phosphatase (ALP) was examined by quantitative real-time PCR (qRT-PCR) in MSMSCs during the process osteogenic differentiation. Then the function of lnc-NTF3-5 was evaluated by loss- and gain-of-function techniques, as well as qRT-PCR, western blot, and Alizarin Red staining...
November 6, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29099331/the-topological-train-ride-of-a-viral-long-non-coding-rna
#15
Joanna Sztuba-Solinska, Stuart F J Le Grice
As the notion of small molecule targeting of regulatory viral and cellular RNAs gathers momentum, understanding their structure, and variations thereof, in the appropriate biological context will play a critical role. This is especially true of the ∼1100-nt polyadenylated nuclear (PAN) long non-coding (lnc) RNA of Kaposi's sarcoma herpesvirus (KSHV), whose interaction with viral and cellular proteins is central to lytic infection. Nuclear accumulation of PAN RNA is mediated via a unique triple helical structure at its 3' terminus (within the expression and nuclear retention element, or ENE) which protects it from deadenylation-dependent decay...
November 3, 2017: RNA Biology
https://www.readbyqxmd.com/read/29072702/a-novel-lnc-pcf-promotes-the-proliferation-of-tgf-%C3%AE-1-activated-epithelial-cells-by-targeting-mir-344a-5p-to-regulate-map3k11-in-pulmonary-fibrosis
#16
Huizhu Liu, Bingsi Wang, Jinjin Zhang, Songzi Zhang, Youlei Wang, Jie Zhang, Changjun Lv, Xiaodong Song
Emerging evidence suggests that microRNA (miRNA) and long noncoding RNA (lncRNA) play important roles in disease development. However, the mechanism underlying mRNA interaction with miRNA and lncRNA in idiopathic pulmonary fibrosis (IPF) remains unknown. This study presents a novel lnc-PCF that promotes the proliferation of TGF-β1-activated epithelial cells through the regulation of map3k11 by directly targeting miR-344a-5p during pulmonary fibrogenesis. Bioinformatics and in vitro translation assay were performed to confirm whether or not lnc-PCF is an actual lncRNA...
October 26, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29068471/long-non-coding-rna-ager-1-functionally-upregulates-the-innate-immunity-gene-ager-and-approximates-its-anti-tumor-effect-in-lung-cancer
#17
Zihua Pan, Li Liu, Wenjing Nie, Sinead Miggin, Fuman Qiu, Yi Cao, Jinbin Chen, Binyao Yang, Yifeng Zhou, Jiachun Lu, Lei Yang
BACKGROUND: Little is known about long non-coding RNA (lncRNA) related to innate immunity in lung cancer. The advanced glycosylation end-product specific receptor (AGER) belongs to the immunoglobulin superfamily, and currently, is the only innate immune pattern-recognition receptor whose abnormal expression has been detected in lung cancer. We aimed to explore the lncRNA that is related to AGER and test its effect on lung carcinogenesis. METHODS: We selected one lncRNA whose chromosome location is in close proximity to AGER namely lnc-AGER-1 (defined as lncAGER)...
October 25, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/29022910/long-non-coding-rna-myd88-promotes-growth-and-metastasis-in-hepatocellular-carcinoma-via-regulating-myd88-expression-through-h3k27-modification
#18
Xiaoliang Xu, Yin Yin, Junwei Tang, Yu Xie, Zhuo Han, Xudong Zhang, Qiaoyu Liu, Xihu Qin, Xinli Huang, Beicheng Sun
Enhanced Myd88 expression has been found in various parenchymal tumors especially in hepatocellular carcinoma with little mechanism of its upregulation known. A lot of long non-coding RNAs are reported to regulate the protein-coding genes which have location association through various mechanisms. In our study we confirmed a new long non-coding RNA Myd88 aberrant upregulated in HCC located upstream of Myd88 and verified a positive regulation relationship between them indicating that Lnc-Myd88 might participate in the enhanced expression of Myd88 in HCC...
October 12, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29020916/integrated-analysis-of-coding-genes-and-non-coding-rnas-during-hair-follicle-cycle-of-cashmere-goat-capra-hircus
#19
Shanhe Wang, Wei Ge, Zhixin Luo, Yang Guo, Beilei Jiao, Lei Qu, Zhiying Zhang, Xin Wang
BACKGROUND: Cashmere growth is a seasonal and cyclic phenomenon under the control of photoperiod and multiple stimulatory and inhibitory signals. Beyond relevant coding genes, microRNA (miRNA) and long non coding RNA (lncRNA) play an indispensable role in hair follicle (HF) development and skin homeostasis. Furthermore, the influence of lncRNA upon miRNA function is also rapidly emerging. However, little is known about miRNAs, lncRNAs and their functions as well as their interactions on cashmere development and cycling...
October 11, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28960939/plasma-long-noncoding-rna-il-7r-as-a-prognostic-biomarker-for-clinical-outcomes-in-patients-with-acute-respiratory-distress-syndrome
#20
Bing Wan, Wu-Jian Xu, Wei-Nan Xu, Ping Zhan, Guan-Nan Wu, Jia-Jia Jin, Guang-Min Xi, Jiang-Tao Yin, Hao Zhang, Yi-Kun Chen, Ying-Ying Miao, Xiao-Xia Wang, Ying-Kun Xu, Tang-Feng Lv, Yong Song
BACKGROUND: Long non-coding RNAs (lncRNAs) regulate a variety of genes and biological processes. Lnc-IL7R plays a considerable role in the regulation of inflammation, but its prognostic potential in acute respiratory distress syndrome (ARDS) has not been fully explained. In this study, the role of lnc-IL7R as a potential biomarker in ARDS was examined. OBJECTIVE: Role of lnc-IL7R as potential biomarker in ARDS. METHODS: LncRNA-IL7R was isolated from the plasma of patients with ARDS and healthy controls and clinical indexes were obtained within 24 h after admission...
September 29, 2017: Clinical Respiratory Journal
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