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Competitive endogenous RNA

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https://www.readbyqxmd.com/read/28915561/differentially-expressed-lncrnas-and-mirnas-with-associated-cerna-networks-in-aged-mice-with-postoperative-cognitive-dysfunction
#1
Changwei Wei, Ting Luo, Shanshan Zou, Xiaobin Zhou, Wenzhen Shen, Xiaolin Ji, Qi Li, Anshi Wu
Postoperative cognitive dysfunction (POCD) is a common postoperative complication observed in elderly patients. Using microarray analyses, we comprehensively compared long non-coding RNA (lncRNA), messenger RNA (mRNA), and microRNA (miRNA) expression profiles in hippocampal tissues from a mouse model of POCD and control mice. A total of 175 lncRNAs, 117 mRNAs, and 26 miRNAs were differentially expressed between POCD and control mice. Gene ontology (GO) and KEGG pathway enrichment analyses were performed to explore the principal functions of dysregulated genes...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28887321/lncrna-pagbc-acts-as-a-microrna-sponge-and-promotes-gallbladder-tumorigenesis
#2
Xiang-Song Wu, Fang Wang, Huai-Feng Li, Yun-Ping Hu, Lin Jiang, Fei Zhang, Mao-Lan Li, Xu-An Wang, Yun-Peng Jin, Yi-Jian Zhang, Wei Lu, Wen-Guang Wu, Yi-Jun Shu, Hao Weng, Yang Cao, Run-Fa Bao, Hai-Bin Liang, Zheng Wang, Yi-Chi Zhang, Wei Gong, Lei Zheng, Shu-Han Sun, Ying-Bin Liu
Long noncoding RNAs (lncRNAs) play roles in the development and progression of many cancers; however, the contributions of lncRNAs to human gallbladder cancer (GBC) remain largely unknown. In this study, we identify a group of differentially expressed lncRNAs in human GBC tissues, including prognosis-associated gallbladder cancer lncRNA (lncRNA-PAGBC), which we find to be an independent prognostic marker in GBC Functional analysis indicates that lncRNA-PAGBC promotes tumour growth and metastasis of GBC cells...
September 8, 2017: EMBO Reports
https://www.readbyqxmd.com/read/28857308/a-novel-splicing-isoform-of-protein-arginine-methyltransferase-1-prmt1-that-lacks-the-dimerization-arm-and-correlates-with-cellular-malignancy
#3
Odysseas Patounas, Ioanna Papacharalampous, Carmen Eckerich, Georgios S Markopoulos, Evangelos Kolettas, Frank O Fackelmayer
Methylation of arginine residues is an important modulator of protein function that is involved in epigenetic gene regulation, DNA damage response and RNA maturation, as well as in cellular signaling. The enzymes that catalyze this post-translational modification are called protein arginine methyltransferases (PRMTs), of which PRMT1 is the predominant enzyme. Human PRMT1 has previously been shown to occur in seven splicing isoforms, which are differentially abundant in different tissues, and have distinct substrate specificity and intracellular localization...
August 31, 2017: Journal of Cellular Biochemistry
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
#4
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/28793054/revealing-potential-long-non-coding-rna-biomarkers-in-lung-adenocarcinoma-using-long-non-coding-rna-mediated-competitive-endogenous-rna-network
#5
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/28789966/pecanex-functions-as-a-competitive-endogenous-rna-of-s-phase-kinase-associated-protein-2-in-lung-cancer
#6
Jingqiu Li, Haihua Tian, Jinchang Pan, Nan Jiang, Jie Yang, Chengwei Zhou, Dazhi Xu, Xiaodan Meng, Zhaohui Gong
Investigating the RNA-RNA interactions involving in the initiation and progression of non-small cell lung cancer (NSCLC) may provide promising diagnostic and targeted therapeutic strategies. Here, we showed that pecanex (PCNX) positively regulates the mRNA and protein expressions of S-phase kinase associated protein 2 (Skp2) in miRNA- and 3' UTR-dependent manners. And miR-26, miR-182, miR-340 and miR-506 were verified as the common miRNAs shared by Skp2 and PCNX. Intriguingly, we initially uncovered that PCNX-3' UTR promotes cell growth, proliferation and cell cycle progression, and suppresses apoptosis of lung cancer cells, which is consistent with the oncogenic activity of Skp2-3' UTR...
August 5, 2017: Cancer Letters
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
#7
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/28741379/tiny-rnas-and-their-voyage-via-extracellular-vesicles-secretion-of-bacterial-small-rna-and-eukaryotic-microrna
#8
Ji-Woong Choi, Jee-Hyun Um, Jin-Hyun Cho, Heon-Jin Lee
MicroRNAs are small non-coding RNAs that bind to the 3'-untranslated region of target mRNAs and have transcriptional or translational inhibitory function in eukaryotes. Before microRNAs were widely known, bacterial non-coding small RNAs around 50-200 nt in length were discovered whose mechanism of action resembled that of microRNAs. Recently, RNAs that are of similar size to or smaller than microRNAs have been discovered in bacteria and indeed, this class of small RNAs have been found throughout all domains of life...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28731781/lncrna-pvt1-facilitates-invasion-through-upregulation-of-mmp9-in-nonsmall-cell-lung-cancer-cell
#9
Wei Chen, Huayun Zhu, Li Yin, Tingting Wang, Jianfeng Wu, Jianhua Xu, Hua Tao, Juying Liu, Xia He
Lung cancer is the most common solid tumor around the world. It has been reported that upregulation of long noncoding RNA (lncRNA) plasmacytoma variant translocation 1 (lncRNA-PVT1) is closely associated with tumor metastasis. However, the function and underlying molecular mechanism of lncRNA-PVT1 in nonsmall cell lung cancer (NSCLC) invasion remain unknown. In this study, we found that overexpression of lncRNA-PVT1 promoted the invasive ability of NSCLC cells, whereas silence of lncRNA-PVT1 suppressed cell invasion...
September 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28698395/long-noncoding-rna-xist-promotes-malignancies-of-esophageal-squamous-cell-carcinoma-via-regulation-of-mir-101-ezh2
#10
Xiaoliang Wu, Xiaoxiao Dinglin, Xing Wang, Wen Luo, Qi Shen, Yong Li, Ling Gu, Qianghua Zhou, Haotu Zhu, Yanjie Li, Chaodi Tan, Xianzi Yang, Zhenfeng Zhang
The long non-coding RNA XIST is a long non-coding RNA that associates with polycomb repressive complex 2 to regulate X-chromosome inactivation in female mammals. The biological roles as well as the underlying mechanisms of XIST in esophageal squamous cell carcinoma remained yet to be solved. Our data indicated that XIST was significantly upregulated in esophageal squamous cancerous tissues and cancer cell lines, as compared with that in the corresponding non-cancerous tissues and immortalized normal squamous epithelial cells...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28695771/microrna-200b-suppresses-the-invasion-and-migration-of-hepatocellular-carcinoma-by-downregulating-rhoa-and-circrna_000839
#11
Ben-Gang Wang, Jun-Shuai Li, Yong-Feng Liu, Qian Xu
MicroRNAs could mediate the targeted coding gene and the targeted non-coding RNA to form endogenous competition, which have an important regulatory role in tumorigenesis of many types of cancer, including hepatocellular carcinoma. The goal of this study was to characterize the role of miR-200b in the pathogenesis of hepatocellular carcinoma. We identified miR-200b that was predicted to regulate RhoA and circ_000839. Our data establish that miR-200b is expressed at a relatively low level in hepatocellular carcinoma ( p < 0...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28691642/xiap-3-untranslated-region-serves-as-a-competitor-for-hmga2-by-arresting-endogenous-let-7a-5p-in-human-hepatocellular-carcinoma
#12
Wen-Yong Wu, Si-Qi Tao, Xiao-Nan Wang, Peter E Lobie, Zheng-Sheng Wu
X-linked inhibitor of apoptosis protein functions as an intrinsic regulator of apoptosis by inhibition of caspase activity and possesses a pivotal role in human cancer development and progression. A growing body of literature has demonstrated that microRNAs lead to the degradation or translational repression of messenger RNAs by binding to the non-coding region of messenger RNA at the 3'-untranslated region. Here, we revealed that the expression of HMGA2 is upregulated with X-linked inhibitor of apoptosis protein after transfection of X-linked inhibitor of apoptosis protein 3'-untranslated region in hepatocellular carcinoma cells, suggesting that X-linked inhibitor of apoptosis protein 3'-untranslated region serves as a competitor for microRNAs and prevent the co-targeted messenger RNA, HMGA2, from being suppressed...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28655924/downregulated-usp3-mrna-functions-as-a-competitive-endogenous-rna-of-smad4-by-sponging-mir-224-and-promotes-metastasis-in-colorectal-cancer
#13
Zaozao Wang, Jie Yang, Jiabo Di, Ming Cui, Jiadi Xing, Fan Wu, Wei Wu, Hong Yang, Chenghai Zhang, Zhendan Yao, Nan Zhang, Beihai Jiang, Xiangqian Su
Increasing evidence shows that competitive endogenous RNAs (ceRNAs) can affect the expression of other transcripts by sequestering common microRNAs (miRNAs), and participate in tumourigenesis. As a potent tumour suppressor in colorectal cancer (CRC), SMAD4 is regulated by many miRNAs. However, the regulation of SMAD4 by ceRNAs has never been examined. In the present study, we found that USP3 modulated SMAD4 expression in a miRNA dependent, and protein-coding gene independent manner. USP3 and SMAD4 were directly targeted by miR-224, and overexpression of the USP3 3'UTR could inhibit metastasis caused by the loss of USP3...
June 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28654907/knockdown-of-malat1-expression-inhibits-huvec-proliferation-by-upregulation-of-mir-320a-and-downregulation-of-foxm1-expression
#14
Jian-Yong Sun, Zheng-Wei Zhao, Wei-Miao Li, Guang Yang, Peng-Yu Jing, Pei Li, Hai-Zhou Dang, Zhao Chen, Yong-An Zhou, Xiao-Fei Li
Regulation of cancer angiogenesis could be a useful strategy in cancer therapy. Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is a long non-coding RNA (lncRNA), and can induce cancer cell proliferation, while lncRNAs, generally are able to act as microRNA (miRNA) sponges. The latter is a type of competitive endogenous RNA (ceRNA) that regulates expression of the targeting miRNAs and protein-coding genes. This study investigated the proliferative role of MALAT1 in human umbilical vein endothelial cells (HUVECs) and the underlying molecular events...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28643459/construction-of-competitive-endogenous-rna-network-reveals-regulatory-role-of-long-non-coding-rnas-in-type-2-diabetes-mellitus
#15
Zijing Lin, Xinyu Li, Xiaorong Zhan, Lijie Sun, Jie Gao, Yan Cao, Hui Qiu
Increasing epidemic of type 2 diabetes mellitus (T2DM) and its comorbidities makes it urgent to understand the pathogenesis and regulatory mechanism. However, little is known about the regulatory role of lncRNAs in diabetes. Here, we constructed a T2DM-related competitive endogenous RNA (ceRNA) network (DMCN) to explore biological function of lncRNAs during the development of diabetes mellitus. This network contained 351 nodes including 98 mRNAs, 86 microRNAs and 167 lncRNAs. Functional analysis showed that the mRNAs in DMCN were annotated into some diabetes-related pathways...
June 23, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28624809/genome-wide-analysis-of-aberrantly-expressed-lncrnas-and-mirnas-with-associated-co-expression-and-cerna-networks-in-%C3%AE-thalassemia-and-hereditary-persistence-of-fetal-hemoglobin
#16
Ketong Lai, Siyuan Jia, Shanjuan Yu, Jianming Luo, Yunyan He
The implications of lncRNAs regarding fetal hemoglobin (HbF) induction in hemoglobin disorders remain poorly understood. In this study, microarray analysis was performed to profile lncRNAs, miRNAs and mRNAs in individuals with hereditary persistence of fetal hemoglobin (HPFH), β-thalassemia carriers with high HbF levels and healthy controls. The results show aberrant expression of 862 lncRNAs, 568 mRNAs and 63 miRNAs in the high-HbF group compared with the control group. Altered NR_001589, NR_120526, T315543, miR-486-3p, miR-19b-1-5p and miR-20a-3p expression was confirmed by quantitative reverse transcription-polymerase chain reaction, and Spearman correlation coefficients revealed significant positive correlations with HbF...
July 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28621687/differentially-expressed-lncrnas-and-mirnas-with-associated-cerna-networks-in-aged-mice-with-postoperative-cognitive-dysfunction
#17
Changwei Wei, Ting Luo, Shanshan Zou, Xiaobin Zhou, Wenzhen Shen, Xiaolin Ji, Qi Li, Anshi Wu
Postoperative cognitive dysfunction (POCD) is a common postoperative complication observed in elderly patients. Using microarray analyses, we comprehensively compared long non-coding RNA (lncRNA), messenger RNA (mRNA), and microRNA (miRNA) expression profiles in hippocampal tissues from a mouse model of POCD and control mice. A total of 175 lncRNAs, 117 mRNAs, and 26 miRNAs were differentially expressed between POCD and control mice. Gene ontology (GO) and KEGG pathway enrichment analyses were performed to explore the principal functions of dysregulated genes...
June 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28619512/part-1-functions-as-a-competitive-endogenous-rna-for-promoting-tumor-progression-by-sponging-mir-143-in-colorectal-cancer
#18
Yongbo Hu, Zhen Ma, Yiming He, Wei Liu, Yu Su, Zongbin Tang
LncRNAs were altered in several cancers and played a crucial role in various biological activities and progressions of different diseases, including proliferation, chemical resistance, and metastasis. In the present study, we revealed that prostrate androgen-regulated transcript-1 (PART-1) was highly expressed in colorectal cancer cells and tissues, and knockdown of PART-1 suppressed cell proliferation and metastasis, both in vitro and in vivo. In addition, PART-1 functioned as a ceRNA of DNMT3A, by sponging miR-143...
August 19, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28611824/posttranscriptional-regulation-controls-calretinin-expression-in-malignant-pleural-mesothelioma
#19
Jelena Kresoja-Rakic, Merve Sulemani, Michaela B Kirschner, Manuel Ronner, Glen Reid, Steven Kao, Beat Schwaller, Walter Weder, Rolf A Stahel, Emanuela Felley-Bosco
Calretinin (CALB2) is a diagnostic and prognostic marker in malignant pleural mesothelioma (MPM). We previously reported that calretinin expression is regulated at the mRNA level. The presence of a medium-sized (573 nucleotide) 3' untranslated region (3'UTR) predicted to contain binding sites for miR-30a/b/c/d/e and miR-9 as well as an adenine/uridine-rich element (ARE) in all three transcripts arising from the CALB2 gene, suggests that calretinin expression is regulated via posttranscriptional mechanisms. Our aim was to investigate the role of the CALB2-3'UTR in the posttranscriptional regulation of calretinin expression in MPM...
2017: Frontiers in Genetics
https://www.readbyqxmd.com/read/28588133/novel-nonreplicating-vaccinia-virus-vector-enhances-expression-of-heterologous-genes-and-suppresses-synthesis-of-endogenous-viral-proteins
#20
Linda S Wyatt, Wei Xiao, Jeffrey L Americo, Patricia L Earl, Bernard Moss
Viruses are used as expression vectors for protein synthesis, immunology research, vaccines, and therapeutics. Advantages of poxvirus vectors include the accommodation of large amounts of heterologous DNA, the presence of a cytoplasmic site of transcription, and high expression levels. On the other hand, competition of approximately 200 viral genes with the target gene for expression and immune recognition may be disadvantageous. We describe a vaccinia virus (VACV) vector that uses an early promoter to express the bacteriophage T7 RNA polymerase; has the A23R intermediate transcription factor gene deleted, thereby restricting virus replication to complementing cells; and has a heterologous gene regulated by a T7 promoter...
June 6, 2017: MBio
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