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competing endogenous RNA

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https://www.readbyqxmd.com/read/28818997/ccr2-3-utr-functions-as-a-competing-endogenous-rna-to-inhibit-breast-cancer-metastasis
#1
Jinhang Hu, Xiaoman Li, Xinwei Guo, Qianqian Guo, Chenxi Xiang, Zhiting Zhang, Yingying Xing, Tao Xi, Lufeng Zheng
Diverse RNA transcripts acting as competing endogenous RNAs (ceRNAs) can co-regulate each other's expression by competing for shared microRNAs. CCR2 protein, the receptor of CCL2, is implicated in cancer progression. However, our results showed that higher CCR2 mRNA level was remarkably associated with prolonged survival of breast cancer patients. The conflicting results prompt us to study the non-coding function of CCR2 mRNA. We indicated that CCR2 3'UTR inhibited MDA-MB-231 and MCF-7 cells metastasis by repressing EMT in vitro and suppressed breast cancer metastasis in vivo Mechanistically, CCR2 3'UTR modulated RhoGAP protein STARD13 expression via acting as a STARD13 ceRNA in a microRNA-dependent and protein coding-independent manner...
August 17, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28813705/the-lncrna-tug1-ezh2-axis-promotes-pancreatic-cancer-cell-proliferation-migration-and-emt-phenotype-formation-through-sponging-mir-382
#2
Liang Zhao, Hongwei Sun, Hongru Kong, Zongjing Chen, Bicheng Chen, Mengtao Zhou
BACKGROUND/AIMS: Pancreatic carcinoma (PC) is the one of the most common and malignant cancers worldwide. LncRNA taurine upregulated gene 1 (TUG1) was initially identified as a transcript upregulated by taurine, and the abnormal expression of TUG1 has been reported in many cancers. However, the biological role and molecular mechanism of TUG1 in PC still needs further investigation. METHODS: Quantitative real-time PCR (qRT-PCR) was performed to measure the expression of TUG1 in PC cell lines and tissues...
August 15, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28798471/identification-of-competing-endogenous-rnas-of-the-tumor-suppressor-gene-pten-a-probabilistic-approach
#3
Kourosh Zarringhalam, Yvonne Tay, Prajna Kulkarni, Assaf C Bester, Pier Paolo Pandolfi, Rahul V Kulkarni
Regulation by microRNAs (miRNAs) and modulation of miRNA activity are critical components of diverse cellular processes. Recent research has shown that miRNA-based regulation of the tumor suppressor gene PTEN can be modulated by the expression of other miRNA targets acting as competing endogenous RNAs (ceRNAs). However, the key sequence-based features enabling a transcript to act as an effective ceRNA are not well understood and a quantitative model associating statistical significance to such features is currently lacking...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28793054/revealing-potential-long-non-coding-rna-biomarkers-in-lung-adenocarcinoma-using-long-non-coding-rna-mediated-competitive-endogenous-rna-network
#4
T-G Zhu, X Xiao, Q Wei, M Yue, L-X Zhang
In our study, we aimed to reveal potential long non-coding RNAs (lncRNA) biomarkers in lung adenocarcinoma (LAD) using lncRNA-mediated competing endogenous RNAs (ceRNAs) network (LMCN). Competing lncRNA-mRNA interactions were identified using the hypergeometric test. Co-expression analysis for the competing lncRNA-mRNA interactions was implemented, and relying on the weight value >0.8, a highly competitive LMCN was further constructed. Degree distribution, betweenness and closeness for LMCN were carried out to analyze the network structure...
August 7, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28789862/genome-wide-identification-and-characterization-of-putative-lncrnas-in-the-diamondback-moth-plutella-xylostella-l
#5
Yue Wang, Tingting Xu, Weiyi He, Xiujing Shen, Qian Zhao, Jianlin Bai, Minsheng You
Long non-coding RNAs (lncRNAs) are of particular interest because of their contributions to many biological processes. Here, we present the genome-wide identification and characterization of putative lncRNAs in a global insect pest, Plutella xylostella. A total of 8096 lncRNAs were identified and classified into three groups. The average length of exons in lncRNAs was longer than that in coding genes and the GC content was lower than that in mRNAs. Most lncRNAs were flanked by canonical splice sites, similar to mRNAs...
August 5, 2017: Genomics
https://www.readbyqxmd.com/read/28789596/circular-rna-hsa_circ_0001564-facilitates-tumorigenesis-of-osteosarcoma-via-sponging-mir-29c-3p
#6
Ji-Feng Li, Yu-Ze Song
Circular RNAs are a novel type of non-coding RNAs generated from back splicing, which has been verified to mediate multiple tumorigenesis. However, the role of circular RNA in osteosarcoma is still unclear. In this study, we preliminarily screened the circular RNAs expression profiles in osteosarcoma and investigated the potential regulation mechanism. The circular RNAs expression profiles in osteosarcoma were screened using circular RNA microarray analysis, and results showed that there were 1152 circular RNAs upregulated and 915 circular RNAs downregulated in tumor tissue compared to adjacent tissue...
August 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28782835/identification-and-functional-analysis-of-a-potential-key-lncrna-involved-in-fat-loss-of-cancer-cachexia
#7
Huiquan Liu, Ting Zhou, Bangyan Wang, Lu Li, Dawei Ye, Shiying Yu
Cancer cachexia is a devastating, multifactorial and irreversible syndrome characterized by skeletal muscle reduction with or without fat loss. Although much attention has been focused on muscle wasting, fat loss may occur earlier and accelerate muscle wasting in cachexia. The cause of 20% of cancer related death makes it urgent to discover molecular mechanisms behind cancer cachexia. Here we applied weighted gene co-expression network analysis(WGCNA) to identify cachexia related gene modules using differentially expressed 3289 genes and 59 long non-coding RNAs based on microarray data of cachectic and non-cachectic subcutaneous adipose tissue...
August 7, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28779971/lncrna-h19-regulates-epithelial-mesenchymal-transition-and-metastasis-of-bladder-cancer-by-mir-29b-3p-as-competing-endogenous-rna
#8
Mengxin Lv, Zhenyu Zhong, Mengge Huang, Qiang Tian, Rong Jiang, Junxia Chen
Accumulating evidences indicate that long noncoding RNAs (lncRNAs) might play important roles in tumorigenesis and metastasis. EMT (epithelial-to-mesenchymal transition) is considered as a critical step in invasion and metastasis of various tumors including bladder cancer (BC). Recent researches have showed that lncRNA H19 is implicated in metastasis through regulating EMT and the reverse MET (mesenchymal-to-epithelial transition). However, underlying mechanisms remain largely unknown. Here, we screened lncRNA and mRNA expression profiles of BC with microarray assay...
August 2, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28761373/chronic-constriction-injury-of-sciatic-nerve-changes-circular-rna-expression-in-rat-spinal-dorsal-horn
#9
Song Cao, Wenwen Deng, Ying Li, Bangyong Qin, Lin Zhang, Shouyang Yu, Peng Xie, Zhi Xiao, Tian Yu
BACKGROUND: Mechanisms of neuropathic pain are still largely unknown. Molecular changes in spinal dorsal horn may contribute to the initiation and development of neuropathic pain. Circular RNAs (circRNAs) have been identified as microRNA sponges and involved in various biological processes, but whether their expression profile changes in neuropathic pain condition is not reported. METHODS: To test whether neuropathic pain influences circRNA expression, we developed a sciatic chronic constriction injury (CCI) model in rats...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28755203/micrornas-recruit-eif4e2-to-repress-translation-of-target-mrnas
#10
Shaohong Chen, Guangxia Gao
MicroRNAs (miRNAs) recruit the RNA-induced silencing complex (RISC) to repress the translation of target mRNAs. While the 5' 7-methylguanosine cap of target mRNAs has been well known to be important for miRNA repression, the underlying mechanism is not clear. Here we show that TNRC6A interacts with eIF4E2, a homologue of eIF4E that can bind to the cap but cannot interact with eIF4G to initiate translation, to inhibit the translation of target mRNAs. Downregulation of eIF4E2 relieved miRNA repression of reporter expression...
July 28, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28753454/long-noncoding-rna-pcat1-regulates-extrahepatic-cholangiocarcinoma-progression-via-the-wnt-%C3%AE-catenin-signaling-pathway
#11
Fumin Zhang, Ming Wan, Yi Xu, Zhenglong Li, Kaiming Leng, Pengcheng Kang, Yunfu Cui, Xingming Jiang
Extrahepatic cholangiocarcinoma (ECC) is a deadly disease that often responds poorly to conventional chemotherapy or radiotherapy. Long noncoding RNAs (lncRNAs) play important roles in human cancers, including ECC, and recent studies indicated that the lncRNA prostate cancer-associated transcript 1 (non-protein coding) (PCAT1) is involved in multiple cancers. However, the role of PCAT1 in ECC is unclear. Previously, we showed that PCAT1 is up-regulated in both ECC tissue samples and cell lines. Here, we showed that downregulation of PCAT1 following transfection with silencing RNA reduced ECC cell growth and increased cell apoptosis...
July 25, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28753062/long-noncoding-rna-h19-acts-as-a-competing-endogenous-rna-to-mediate-ctgf-expression-by-sponging-mir-455-in-cardiac-fibrosis
#12
Zhi-Wen Huang, Li-Hong Tian, Bin Yang, Run-Min Guo
Cardiac fibrosis is closely related to multiple cardiovascular system diseases, and noncoding RNAs (ncRNAs), including long noncoding RNA (lncRNA) and microRNA (miRNA), have been reported to play a vital role in fibrogenesis. The present study aims to investigate the potential regulatory mechanism of lncRNA H19 and miR-455 on fibrosis-associated protein synthesis in cardiac fibroblasts (CFs). miRNA microarray assay revealed 34 significantly dysregulated miRNAs, including 13 upregulated miRNAs and 21 downregulated miRNAs...
July 28, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28750740/lncrna-odrul-contributes-to-osteosarcoma-progression-through-the-mir-3182-mmp2-axis
#13
Kun-Peng Zhu, Xiao-Long Ma, Chun-Lin Zhang
Recent findings have shown that lncRNA dysregulation is involved in many cancers, including osteosarcoma (OS). In a previous study, we reported a novel lncRNA, ODRUL, that could promote doxorubicin resistance in OS. We now report the function and underlying mechanism of ODRUL in regulating OS progression. We show that ODRUL is upregulated in OS tissues and cell lines and correlates with poor prognosis. ODRUL knockdown significantly inhibits OS cell proliferation, migration, invasion, and tumor growth in vitro and in vivo by decreasing matrix metalloproteinase (MMP) expression...
July 5, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
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
#14
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/28744139/the-long-noncoding-rna-tincr-functions-as-a-competing-endogenous-rna-to-regulate-pdk1-expression-by-sponging-mir-375-in-gastric-cancer
#15
Zhaoliang Chen, Hong Liu, Huili Yang, Yukai Gao, Gongwen Zhang, Jiaojiao Hu
BACKGROUND: Accumulating evidence indicates that the long noncoding RNA, TINCR, plays a critical role in cancer progression and metastasis. However, the overall biological role and mechanisms of TINCR that were involved in human gastric cancer (GC) progression remain largely unknown. METHODS: TINCR expression was measured in 56 paired tumor and adjacent nontumor tissue samples by real-time polymerase chain reaction (PCR). Insights of the mechanism of competitive endogenous RNAs (ceRNAs) were gained from bioinformatic analysis, luciferase assays...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28743867/using-rna-sequencing-to-identify-putative-competing-endogenous-rnas-cernas-potentially-regulating-fat-metabolism-in-bovine-liver
#16
Ruobing Liang, Bo Han, Qian Li, Yuwei Yuan, Jianguo Li, Dongxiao Sun
RNA sequencing has been extensively used to study specific gene expression patterns to discover potential key genes related to complex traits of interest in animals. Of note, a new regulatory mechanism builds a large-scale regulatory network among transcriptome, where lncRNAs act as competing endogenous RNAs (ceRNAs) to sponge miRNAs to regulate the expression of miRNA target genes post-transcriptionally. In this study, we sequenced the cDNA and sRNA libraries of nine liver samples from three Holstein cows during dry period, early lactation, and peak of lactation with HiSeq platform...
July 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28743737/real-time-visualization-of-chromatin-modification-in-isolated-nuclei
#17
Luca Sardo, Angel Lin, Svetlana Khakhina, Lucas Beckman, Luis Ricon, Weam Elbezanti, Tara Jaison, Harshad Vishwasrao, Hari Shroff, Christopher Janetopoulos, Zachary A Klase
Chromatin modification is traditionally queried by biochemical assays that provide average measurements of static events since the analysis requires components from many cells. Microscopy can visualize single cells, but the cell body and organelles can hamper staining and visualization of the nucleus. Normally, chromatin is visualized by immunostaining a fixed sample or by expressing exogenous fluorescently tagged proteins in a live cell. Alternative microscopy tools to observe changes of endogenous chromatin in real-time are needed...
July 25, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28731158/the-long-non-coding-rna-snhg3-functions-as-a-competing-endogenous-rna-to-promote-malignant-development-of-colorectal-cancer
#18
Weizhen Huang, Yunming Tian, Shaoting Dong, Yinlian Cha, Jun Li, Xiaohong Guo, Xia Yuan
Accumulating evidence has revealed that aberrantly expressed long non-coding transcripts are involved in the development and progression of colorectal cancer (CRC). Small nucleolar RNA host gene 3 (SNHG3) is a newly identified lncRNA, and little is known about its clinical significance and biological functions in the development of CRC. In the present study, we found that the expression of SNHG3 was significantly upregulated in CRC, and upregulation of SNHG3 predicted poor prognosis for patients with CRC as determined through analysis of the data obtained from TCGA database...
July 18, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28731027/ptenp1-acts-as-a-cerna-to-regulate-pten-by-sponging-mir-19b-and-explores-the-biological-role-of-ptenp1-in-breast-cancer
#19
R-K Li, J- Gao, L-H Guo, G-Q Huang, W-H Luo
This study aimed to investigate role of long noncoding RNA PTENP1 regulating PTEN expression via miR-19b to affect breast cancer (BC) progression. We measured expressions of PTENP1, miR-19b and PTEN in 65 matched BC cancerous and noncancerous tissues by quantitative real-time fluorescence PCR (qRT-PCR) and investigated the biological effects of PTENP1 in BC MDA-MB-231 cells by several in vitro experiments including CCK8, wound healing, transwell and Annexin V-FITC/PI analysis. Besides, the competing endogenous RNA (ceRNA) activity of PTENP1 on miR-19b was detected by luciferase reporter assay, and the expressions of related genes and proteins were determined by western blot assay and qRT-PCR...
July 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28716020/long-non-coding-rna-casc2-suppresses-epithelial-mesenchymal-transition-of-hepatocellular-carcinoma-cells-through-casc2-mir-367-fbxw7-axis
#20
Yufeng Wang, Zhikui Liu, Bowen Yao, Qing Li, Liang Wang, Cong Wang, Changwei Dou, Meng Xu, Qingguang Liu, Kangsheng Tu
BACKGROUND: Recently, it has been reported that long non-coding RNA (lncRNA) cancer susceptibility candidate 2 (CASC2), a novel tumor suppressor, participates in regulating the carcinogenesis and suppresses tumor progression by sponging microRNAs (miRNAs). However, the expression and function of CASC2 in hepatocellular carcinoma (HCC) remain unclear. METHODS: The expression of CASC2 and miR-367 in HCC specimens and cell lines were detected by real-time PCR. Western blotting and immunohistochemistry were carried out for detection of epithelial-to-mesenchymal transition (EMT) markers in HCC...
July 17, 2017: Molecular Cancer
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