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long non coded rna

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https://www.readbyqxmd.com/read/28820723/a-lncrna-fine-tunes-the-dynamics-of-a-cell-state-transition-involving-lin28-let-7-and-de-novo-dna-methylation
#1
Meng Amy Li, Paulo P Amaral, Priscilla Cheung, Jan H Bergmann, Masaki Kinoshita, Tüzer Kalkan, Meryem Ralser, Sam Robson, Ferdinand von Meyenn, Maike Paramor, Fengtang Yang, Caifu Chen, Jennifer Nichols, David L Spector, Tony Kouzarides, Lin He, Austin Smith
Execution of pluripotency requires progression from the naïve status represented by mouse embryonic stem cells (ESCs) to a state capacitated for lineage specification. This transition is coordinated at multiple levels. Non-coding RNAs may contribute to this regulatory orchestra. We identified a rodent-specific long non-coding RNA (lncRNA) linc1281, hereafter Ephemeron (Eprn), that modulates the dynamics of exit from naïve pluripotency. Eprn deletion delays the extinction of ESC identity, an effect associated with perduring Nanog expression...
August 18, 2017: ELife
https://www.readbyqxmd.com/read/28819405/linc00152-promotes-cancer-cell-proliferation-and-invasion-and-predicts-poor-prognosis-in-lung-adenocarcinoma
#2
Pei-Pei Zhang, Yi-Qin Wang, Wei-Wei Weng, Wei Nie, Yong Wu, Yu Deng, Ping Wei, Mi-Die Xu, Chao-Fu Wang
Background: The long non-coding RNA Linc00152 stimulates tumor progression in cancer. However, its clinical significance and biological functions in lung adenocarcinoma remains unknown. We evaluate the expression of Linc00152 in lung adenocarcinoma and its possible correlation with clinicopathologic features and patient survival to reveal its biological effects in cancer progression and prognosis. Methods: Total RNA extraction was performed on 110 pairs of lung adenocarcinoma and adjacent normal tissue samples, and then RT-qPCR was conducted...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819235/expression-of-long-non-coding-rna-mfi2-as1-is-a-strong-predictor-of-recurrence-in-sporadic-localized-clear-cell-renal-cell-carcinoma
#3
Ronan Flippot, Roger Mouawad, Jean-Philippe Spano, Morgan Rouprêt, Eva Compérat, Marc-Olivier Bitker, Jérôme Parra, Christophe Vaessen, Frederick Allanic, Quentin Manach, Nizar M Tannir, David Khayat, Xiaoping Su, Gabriel G Malouf
Prediction of recurrence is a challenge for the development of adjuvant treatments in clear-cell renal cell carcinoma (ccRCC). In these tumors, expression of long non-coding RNAs (lncRNAs) are deregulated and closely associated with prognosis. Thus, we aimed to predict ccRCC recurrence risk using lncRNA expression. We identified prognostic lncRNAs in a training set of 351 localized ccRCCs from The Cancer Genome Atlas and validated lncRNA-based recurrence classification in an independent cohort of 167 localized ccRCCs...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819115/genome-wide-identification-and-expression-profiling-of-long-non-coding-rnas-in-auditory-and-vestibular-systems
#4
Kathy Ushakov, Tal Koffler-Brill, Aviv Rom, Kobi Perl, Igor Ulitsky, Karen B Avraham
Mammalian genomes encode multiple layers of regulation, including a class of RNA molecules known as long non-coding RNAs (lncRNAs). These are >200 nucleotides in length and similar to mRNAs, they are capped, polyadenylated, and spliced. In contrast to mRNAs, lncRNAs are less abundant and have higher tissue specificity, and have been linked to development, epigenetic processes, and disease. However, little is known about lncRNA function in the auditory and vestibular systems, or how they play a role in deafness and vestibular dysfunction...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28815726/differential-expression-profile-analysis-of-lncrna-uca1%C3%AE-regulated-mrnas-in-bladder-cancer
#5
Yu Wang, Hong Zhang, Xu Li, Wei Chen
Urothelial carcinoma associated 1α (UCA1α) is a novel long non-coding RNA (lncRNA) that regulates bladder cancer proliferation, migration, and invasion. The target genes of UCA1α have, however, not been identified. To address this, a pCDNA3.1(+)-UCA1α over-expression vector was transfected into UM-UC-2 bladder cancer cells. Genes differentially expressed between pCDNA3.1(+)-UCA1α and pCDNA3.1(+) transfected cell were then detected by microarray and bioinformatics analysis. A total of seventy-one differentially expressed genes were identified, including fifty-two up-regulated genes and nineteen down-regulated genes...
August 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28815535/history-discovery-and-classification-of-lncrnas
#6
Julien Jarroux, Antonin Morillon, Marina Pinskaya
The RNA World Hypothesis suggests that prebiotic life revolved around RNA instead of DNA and proteins. Although modern cells have changed significantly in 4 billion years, RNA has maintained its central role in cell biology. Since the discovery of DNA at the end of the nineteenth century, RNA has been extensively studied. Many discoveries such as housekeeping RNAs (rRNA, tRNA, etc.) supported the messenger RNA model that is the pillar of the central dogma of molecular biology, which was first devised in the late 1950s...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28810905/omni-polya-a-method-and-tool-for-accurate-recognition-of-poly-a-signals-in-human-genomic-dna
#7
Arturo Magana-Mora, Manal Kalkatawi, Vladimir B Bajic
BACKGROUND: Polyadenylation is a critical stage of RNA processing during the formation of mature mRNA, and is present in most of the known eukaryote protein-coding transcripts and many long non-coding RNAs. The correct identification of poly(A) signals (PAS) not only helps to elucidate the 3'-end genomic boundaries of a transcribed DNA region and gene regulatory mechanisms but also gives insight into the multiple transcript isoforms resulting from alternative PAS. Although progress has been made in the in-silico prediction of genomic signals, the recognition of PAS in DNA genomic sequences remains a challenge...
August 15, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28807541/urinary-rna-based-biomarkers-for-prostate-cancer-detection
#8
REVIEW
Filippo Martignano, Lorena Rossi, Antonio Maugeri, Valentina Gallà, Vincenza Conteduca, Ugo De Giorgi, Valentina Casadio, Giuseppe Schepisi
Prostate cancer (PCa) is the commonest malignancy in the male population worldwide. Serum prostate specific antigen (PSA) test is the most important biomarker for the detection, follow-up and therapeutic monitoring of PCa. Defects in PSA specificity have elicited research for new biomarkers to improve early diagnosis and avoid false-positive results. This review evaluates urinary RNA-based biomarkers. Urine is a versatile body fluid for non-invasive biomarker detection in case of urological malignancies. The importance of RNA-based biomarkers has been demonstrated by the current use of PCA3, a long non coding RNA biomarker already approved by the Food and Drugs Administration...
August 11, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28804550/long-noncoding-rna-meg3-suppressed-endothelial-cell-proliferation-and-migration-through-regulating-mir-21
#9
Ziheng Wu, Yangyan He, Donglin Li, Xin Fang, Tao Shang, Hongkun Zhang, Xiangtao Zheng
Long non-coding RNAs (lncRNAs) act critical roles in many biological processes, including cell proliferation, apoptosis, development, invasion and migration. LncRNA maternally expressed gene 3 (MEG3) is found to be downregulated in several tumors; however, its role in the atherosclerosis is still unknown. In the present study, we demonstrated that MEG3 expression level was downregulated in the coronary artery disease (CAD) tissues compared to in the control tissues. We also showed that TNF-α enhanced EC cell proliferation...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28803540/preparation-of-highly-multiplexed-small-rna-sequencing-libraries
#10
Helena Persson, Rolf Søkilde, Anna Chiara Pirona, Carlos Rovira
MicroRNAs (miRNAs) are ~22-nucleotide-long small non-coding RNAs that regulate the expression of protein-coding genes by base pairing to partially complementary target sites, preferentially located in the 3´ untranslated region (UTR) of target mRNAs. The expression and function of miRNAs have been extensively studied in human disease, as well as the possibility of using these molecules as biomarkers for prognostication and treatment guidance. To identify and validate miRNAs as biomarkers, their expression must be screened in large collections of patient samples...
August 1, 2017: BioTechniques
https://www.readbyqxmd.com/read/28803142/identification-and-characterization-of-a-long-non-coding-rna-up-regulated-during-hiv-1-infection
#11
Thomas S Postler, Shara N Pantry, Ronald C Desrosiers, Sankar Ghosh
Long non-coding RNAs (lncRNAs) are rapidly emerging as important regulators of a diverse array of cellular functions. Here, we describe a meta-analysis of two independent RNA-seq studies to identify lncRNAs that are differentially expressed upon HIV-1 infection. Only three lncRNA genes exhibited altered expression of ≥ 2-fold in HIV-1-infected cells. Of these, the uncharacterized lncRNA LINC00173 was chosen for further study. Both transcript variants of LINC00173 (lnc173 TSV1 and 2) could be detected by qPCR, localized predominantly to the nucleus and were reproducibly up-regulated during infection...
August 10, 2017: Virology
https://www.readbyqxmd.com/read/28801479/the-role-of-interactions-of-long-non-coding-rnas-and-heterogeneous-nuclear-ribonucleoproteins-in-regulating-cellular-functions
#12
REVIEW
Xinghui Sun, Mohamed Sham Shihabudeen Haider Ali, Matthew Moran
Long non-coding RNAs (lncRNAs) are emerging as critical regulators of various biological processes and human diseases. The mechanisms of action involve their interactions with proteins, RNA and genomic DNA. Most lncRNAs display strong nuclear localization. Heterogeneous nuclear ribonucleoproteins (hnRNPs) are a large family of RNA-binding proteins that are important for multiple aspects of nucleic acid metabolism. hnRNPs are also predominantly expressed in the nucleus. This review discusses the interactions of lncRNAs and hnRNPs in regulating gene expression at transcriptional and post-transcriptional levels or by changing genomic structure, highlighting their involvements in glucose and lipid metabolism, immune response, DNA damage response, and other cellular functions...
August 11, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28800794/long-intergenic-noncoding-rna-319-linc00319-promotes-cell-proliferation-and-invasion-in-lung-cancer-cells-by-directly-downregulating-the-tumor-suppressor-mir-32
#13
Bo Zhou, Wenwen Yuan, Xinping Li
Long non-coding RNAs (lncRNAs) have been shown to play important regulatory roles in the pathogenesis and progression of multiple cancers. Here, we investigated the role of long intergenic non coding RNA 319 (linc00319) in the proliferation and invasion of lung cancer cells. We found that, compared with normal lung cell line HBE, linc00319 was increased in low metastatic lung cancer cell lines PAa and AgiY-83a, and further increased in high metastatic lung cancer cell lines A549 and Anip-973. Then, different concentrations of pcDNA-linc00319 expression vector and different concentrations of linc00319 siRNA were respectively transfected into A549 lung cancer cells...
August 11, 2017: Oncology Research
https://www.readbyqxmd.com/read/28800786/knockdown-of-long-noncoding-rna-linc0000125-suppresses-cellular-proliferation-and-invasion-in-glioma-cells-by-regulating-mir-4775
#14
Zhankun Zhu, Jinhua Dai, Yufeng Liao, Jianbo Ma, Wei Zhou
Long noncoding RNAs (lncRNAs) play an important role in various biological properties of glioma cells. Herein, we aimedto elucidate the function and the possible molecular mechanisms of long intergenic non-coding RNA 152 (LINC00152) in glioma cells. Relative expressions of LINC00152, miR-4775 and CDK6 in U-118 MG cells were regulated by transfections. Thereafter, cell viability, migration, invasion and apoptosis were analyzed by CCK8, Transwell and flow cytometry assays. Dual-luciferase reporter assay was conducted to validate the target genes of LINC00152 and miR-4775...
August 11, 2017: Oncology Research
https://www.readbyqxmd.com/read/28799568/association-of-long-non-coding-rna-h19-and-microrna-21-expression-with-the-biological-features-and-prognosis-of-non-small-cell-lung-cancer
#15
Y Zhou, B Sheng, Q Xia, X Guan, Y Zhang
In recent years, long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) have been shown to play important roles in tumor biological function. The aim of this study was to investigate the diagnostic and prognostic value of lncRNA H19 and miR-21 expression in non-small-cell lung cancer (NSCLC). H19 and miR-21 expression was measured in tumor tissues and corresponding non-tumor lung tissues from 200 patients by quantitative reverse transcription polymerase chain reaction. Moreover, the in vitro and in vivo effects of H19 knock out in A549 cells were investigated...
August 11, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28797301/sialotranscriptomics-of-rhipicephalus-zambeziensis-reveals-intricate-expression-profiles-of-secretory-proteins-and-suggests-tight-temporal-transcriptional-regulation-during-blood-feeding
#16
Minique Hilda de Castro, Daniel de Klerk, Ronel Pienaar, D Jasper G Rees, Ben J Mans
BACKGROUND: Ticks secrete a diverse mixture of secretory proteins into the host to evade its immune response and facilitate blood-feeding, making secretory proteins attractive targets for the production of recombinant anti-tick vaccines. The largely neglected tick species, Rhipicephalus zambeziensis, is an efficient vector of Theileria parva in southern Africa but its available sequence information is limited. Next generation sequencing has advanced sequence availability for ticks in recent years and has assisted the characterisation of secretory proteins...
August 10, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28796922/long-non-coding-rnas-and-prostate-cancer
#17
REVIEW
Aya Misawa, Ken-Ichi Takayama, Satoshi Inoue
Long non-coding RNAs (lncRNAs) are RNA transcripts larger than 200 nucleotides that do not code for proteins whose aberrant expression has been documented in various types of cancer, including prostate cancer. The lack of appropriate sensitive and specific biomarkers for prostate cancer has led to over-diagnosis and overtreatment, making lncRNAs promising novel biomarkers as well as therapeutic targets for the disease. This review attempts to summarize the current knowledge of lncRNA expression patterns and mechanisms in prostate cancer, which contribute to carcinogenesis...
August 10, 2017: Cancer Science
https://www.readbyqxmd.com/read/28796262/long-noncoding-rna-crnde-promotes-colorectal-cancer-cell-proliferation-via-epigenetically-silencing-dusp5-cdkn1a-expression
#18
Jie Ding, Juan Li, HaiYan Wang, Yun Tian, Min Xie, XueZhi He, Hao Ji, Zhonghua Ma, Bingqing Hui, Keming Wang, Guozhong Ji
Evidence indicates that long non-coding RNAs (lncRNAs) play a critical role in the regulation of tumor cellular processes, such as proliferation, apoptosis, and metastasis. LncRNA CRNDE (Colorectal Neoplasia Differentially Expressed) is located at human chromosome 16 and has been found overexpressed in a variety of cancers including colorectal cancer (CRC). In this paper, we report that lncRNA CRNDE expression was remarkably upregulated in CRC tissues and that lncRNA CRNDE overexpression was positively correlated with advanced pathological stages and larger tumor sizes...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28794691/biological-role-of-long-non-coding-rna-in-head-and-neck-cancers
#19
REVIEW
Tomasz Kolenda, Kacper Guglas, Marcel Ryś, Marta Bogaczyńska, Anna Teresiak, Renata Bliźniak, Izabela Łasińska, Jacek Mackiewicz, Katarzyna M Lamperska
Head and neck squamous cell carcinoma (HNSCC) are one of the worst prognosis cancers with high mortality of patients. The treatment strategy is primarily based on surgery and radiotherapy but chemotherapy is also used. Every year the knowledge concerning HNSCC biology is updated with new elements such as the recent discovered molecules - long non-coding RNAs. Long non-coding RNAs are involved in regulatory processes in the cells. It has been revealed that the expression levels of lncRNAs are disturbed in tumor cells what results in the acquisition of their specific phenotype...
September 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28794490/a-transcriptome-atlas-of-rabbit-revealed-by-pacbio-single-molecule-long-read-sequencing
#20
Shi-Yi Chen, Feilong Deng, Xianbo Jia, Cao Li, Song-Jia Lai
It is widely acknowledged that transcriptional diversity largely contributes to biological regulation in eukaryotes. Since the advent of second-generation sequencing technologies, a large number of RNA sequencing studies have considerably improved our understanding of transcriptome complexity. However, it still remains a huge challenge for obtaining full-length transcripts because of difficulties in the short read-based assembly. In the present study we employ PacBio single-molecule long-read sequencing technology for whole-transcriptome profiling in rabbit (Oryctolagus cuniculus)...
August 9, 2017: Scientific Reports
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