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https://www.readbyqxmd.com/read/27396952/snhg16-is-regulated-by-the-wnt-pathway-in-colorectal-cancer-and-affects-genes-involved-in-lipid-metabolism
#1
Lise Lotte Christensen, Kirsten True, Mark P Hamilton, Morten M Nielsen, Nkerorema D Damas, Christian K Damgaard, Halit Ongen, Emmanouil Dermitzakis, Jesper B Bramsen, Jakob S Pedersen, Anders H Lund, Søren Vang, Katrine Stribolt, Mogens R Madsen, Søren Laurberg, Sean E McGuire, Torben F Ørntoft, Claus L Andersen
It is well established that lncRNAs are aberrantly expressed in cancer where they have been shown to act as oncogenes or tumor suppressors. RNA profiling of 314 colorectal adenomas/adenocarcinomas and 292 adjacent normal colon mucosa samples using RNA-sequencing demonstrated that the snoRNA host gene 16 (SNHG16) is significantly up-regulated in adenomas and all stages of CRC. SNHG16 expression was positively correlated to the expression of Wnt-regulated transcription factors, including ASCL2, ETS2, and c-Myc...
October 2016: Molecular Oncology
https://www.readbyqxmd.com/read/27198221/spongescan-a-web-for-detecting-microrna-binding-elements-in-lncrna-sequences
#2
Pedro Furió-Tarí, Sonia Tarazona, Toni Gabaldón, Anton J Enright, Ana Conesa
Non-coding RNA transcripts such as microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) are important genetic regulators. However, the functions of many of these transcripts are still not clearly understood. Recently, it has become apparent that there is significant crosstalk between miRNAs and lncRNAs and that this creates competition for binding between the miRNA, a lncRNA and other regulatory targets. Indeed, various competitive endogenous RNAs (ceRNAs) have already been identified where a lncRNA acts by sequestering miRNAs...
July 8, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/26358722/cerna-in-cancer-possible-functions-and-clinical-implications
#3
REVIEW
Xiaolong Qi, Da-Hong Zhang, Nan Wu, Jun-Hua Xiao, Xiang Wang, Wang Ma
Competing endogenous RNAs (ceRNAs) are transcripts that can regulate each other at post-transcription level by competing for shared miRNAs. CeRNA networks link the function of protein-coding mRNAs with that of non-coding RNAs such as microRNA, long non-coding RNA, pseudogenic RNA and circular RNA. Given that any transcripts harbouring miRNA response element can theoretically function as ceRNAs, they may represent a widespread form of post-transcriptional regulation of gene expression in both physiology and pathology...
October 2015: Journal of Medical Genetics
https://www.readbyqxmd.com/read/26311052/long-non-coding-rna-malat1-modulates-radiosensitivity-of-hr-hpv-cervical-cancer-via-sponging-mir-145
#4
Hongzhi Lu, Yu He, Lin Lin, Zhengqin Qi, Li Ma, Li Li, Ying Su
Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is a lncRNA playing oncogenic role in several cancers, including cervical cancer. However, its role in radiosensitivity of cervical cancer is not yet well understood. This study explored the role of MALAT1 in radiosensitivity of high-risk human papillomavirus (HR-HPV)-positive cervical cancer and whether there is a ceRNA mechanism which participated in its regulation over radiosensitivity. Based on tissue samples from 50 cervical cancer cases and 25 healthy controls, we found MALAT1 expression was significantly higher in radioresistant than in radiosensitive cancer cases...
February 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/26224446/long-non-coding-rna-fer-1-like-protein-4-suppresses-oncogenesis-and-exhibits-prognostic-value-by-associating-with-mir-106a-5p-in-colon-cancer
#5
Ben Yue, Bo Sun, Chenchen Liu, Senlin Zhao, Dongyuan Zhang, Fudong Yu, Dongwang Yan
Novel long non-coding RNA Fer-1-like protein 4 (FER1L4) has been confirmed to play crucial regulatory roles in tumor progression. It exerts an impact on tumor suppression and functions as a competing endogenous RNA (ceRNA) by sponging miR-106a-5p in gastric cancer. However, its clinical significance in colon cancer is completely unknown. The aim of the present study was to annotate the role of FER1L4 and its clinical value in colon cancer. The results showed the aberrant expression of FER1L4 and miR-106a-5p in colon cancer tissues...
October 2015: Cancer Science
https://www.readbyqxmd.com/read/26068968/the-lncrna-h19-promotes-epithelial-to-mesenchymal-transition-by-functioning-as-mirna-sponges-in-colorectal-cancer
#6
Wei-Cheng Liang, Wei-Ming Fu, Cheuk-Wa Wong, Yan Wang, Wei-Mao Wang, Guo-Xin Hu, Li Zhang, Li-Jia Xiao, David Chi-Cheong Wan, Jin-Fang Zhang, Mary Miu-Yee Waye
Recently, the long non-coding RNA (lncRNA) H19 has been identified as an oncogenic gene in multiple cancer types and elevated expression of H19 was tightly linked to tumorigenesis and cancer progression. However, the molecular basis for this observation has not been characterized in colorectal cancer (CRC) especially during epithelial to mesenchymal transition (EMT) progression. In our studies, H19 was characterized as a novel regulator of EMT in CRC. We found that H19 was highly expressed in mesenchymal-like cancer cells and primary CRC tissues...
September 8, 2015: Oncotarget
https://www.readbyqxmd.com/read/25888444/competing-endogenous-rna-networks-tying-the-essential-knots-for-cancer-biology-and-therapeutics
#7
REVIEW
Avencia Sanchez-Mejias, Yvonne Tay
A recently discovered dimension of post-transcriptional gene regulation involves co-regulatory crosstalk between RNA transcripts, which compete for common pools of microRNA (miRNA) molecules. These competing endogenous RNAs (ceRNAs), or natural miRNA sponges, have an active role in regulating miRNA availability within the cell and form intertwined regulatory networks. Recent reports have implicated diverse RNA species including protein-coding messenger RNAs and non-coding RNAs as ceRNAs in human development and diseases including human cancer...
2015: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/25809705/oncocers-cerna-mediated-cross-talk-by-sponging-mirnas-in-oncogenic-pathways
#8
REVIEW
Sercan Ergun, Serdar Oztuzcu
Competing endogenous RNAs (ceRNAs) are RNA transcripts which can communicate with each other by decreasing targeting concentration of micro-RNA (miRNA) with the derepression of other messenger RNAs (mRNAs) having the common miRNA response elements (MREs). Oncocers are ceRNAs taking crucial roles in oncogenic pathways processed in many types of cancer, and this study analyzes oncocer-mediated cross-talk by sponging microRNAs (miRNAs) in these pathways. While doing this, breast, liver, colon, prostate, gastric, lung, endometrium, thyroid and epithelial cancers and melanoma, rhabdomyosarcoma, glioblastoma, acute promyelocytic leukemia, retinoblastoma, and neuroblastoma were analyzed with respect to ceRNA-based carcinogenesis...
May 2015: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/25540364/hepatitis-b-virus-regulates-apoptosis-and-tumorigenesis-through-the-microrna-15a-smad7-transforming-growth-factor-beta-pathway
#9
Ningning Liu, Tong Jiao, Yan Huang, Wenjun Liu, Zhiwei Li, Xin Ye
UNLABELLED: Hepatitis B virus (HBV) infection causes chronic hepatitis in hundreds of millions of people worldwide, which can eventually lead to hepatocellular carcinoma (HCC). Previously, we found that HBV mRNAs can absorb microRNA-15a (miR-15a) to affect apoptosis through the Bcl-2 pathway. We asked whether HBV could inhibit apoptosis and promote tumorigenesis through different pathways. In this study, we found that the transforming growth factor β (TGF-β) pathway-inhibitory factor Smad7 is a novel target of miR-15a...
March 2015: Journal of Virology
https://www.readbyqxmd.com/read/25033876/computational-analysis-identifies-a-sponge-interaction-network-between-long-non-coding-rnas-and-messenger-rnas-in-human-breast-cancer
#10
Paola Paci, Teresa Colombo, Lorenzo Farina
BACKGROUND: Non-coding RNAs (ncRNAs) are emerging as key regulators of many cellular processes in both physiological and pathological states. Moreover, the constant discovery of new non-coding RNA species suggests that the study of their complex functions is still in its very early stages. This variegated class of RNA species encompasses the well-known microRNAs (miRNAs) and the most recently acknowledged long non-coding RNAs (lncRNAs). Interestingly, in the last couple of years, a few studies have shown that some lncRNAs can act as miRNA sponges, i...
July 17, 2014: BMC Systems Biology
https://www.readbyqxmd.com/read/25014376/construction-and-investigation-of-breast-cancer-specific-cerna-network-based-on-the-mrna-and-mirna-expression-data
#11
Xionghui Zhou, Juan Liu, Wei Wang
It has been proved and widely acknowledged that messenger RNAs can talk to each other by competing for a limited pool of miRNAs. The competing endogenous RNAs are called as ceRNAs. Although some researchers have recently used ceRNAs to do biological function annotations, few of them have investigated the ceRNA network on specific disease systematically. In this work, using both miRNA expression data and mRNA expression data of breast cancer patient as well as the miRNA target relations, the authors proposed a computational method to construct a breast-cancer-specific ceRNA network by checking whether the shared miRNA sponges between the gene pairs are significant...
June 2014: IET Systems Biology
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