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https://www.readbyqxmd.com/read/28722813/knockdown-of-long-non-coding-rna-malat1-inhibits-growth-and-motility-of-human-hepatoma-cells-via-modulation-of-mir-195
#1
Dingli Liu, Yun Zhu, Jinke Pang, Xie Weng, Xiaorong Feng, Yabing Guo
The metastasis-associated lung adenocarcinoma transcription 1 (Malat1) is a long non-coding RNA (lncRNA), exerts oncogenic role in multiple cancers, including hepatocellular carcinoma (HCC). This study was aimed to investigate its posttranscriptional regulation in HCC cells. RT-PCR was performed to monitor the expression levels of Malat1 in normal liver and HCC cell lines. The expression of Malat1, microRNA (miR)-195 and epidermal growth factor receptor (EGFR) in HepG2 and MHCC97 cells was respectively or synchronously altered by transfection...
July 19, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28720069/long-non-coding-rna-spry4-it1-promotes-proliferation-and-invasion-by-acting-as-a-cerna-of-mir-101-3p-in-colorectal-cancer-cells
#2
Jianguang Jin, Zhijie Chu, Pengfei Ma, Yuanpu Meng, Yanhui Yang
Long non-coding RNAs are associated with a spectrum of biological processes such as gene regulation on transcriptional and post-transcriptional levels. Increasing evidence indicates that SPRY4-IT1 plays an important role in carcinogenesis, and the mechanisms whereby SPRY4-IT1 induces colorectal carcinoma progression remain largely unknown. The aim of this study is to evaluate the expression and function of SPRY4-IT1 in colorectal carcinoma. In this study, we analyzed SPRY4-IT1 expression levels in a series of colorectal carcinoma patients by quantitative reverse transcription polymerase chain reaction...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
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
#3
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
https://www.readbyqxmd.com/read/28715796/application-of-long-noncoding-rnas-in-osteosarcoma-biomarkers-and-therapeutic-targets
#4
Zhihong Li, Pengcheng Dou, Tang Liu, Shasha He
Osteosarcoma is the most common primary bone malignancy in children and adolescents. Although improvements in therapeutic strategies were achieved, the outcome remains poor for most patients with metastatic or recurrent osteosarcoma. Therefore, it is imperative to identify novel and effective prognostic biomarker and therapeutic targets for the disease. Long noncoding RNAs (lncRNAs) are a novel class of RNA molecules defined as transcripts >200 nucleotides that lack protein coding potential. Many lncRNAs are deregulated in cancer and are important regulators for malignancies...
July 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28708282/the-mechanism-of-long-non-coding-rna-meg3-for-hepatic-ischemia-reperfusion-mediated-by-mir-34a-nrf2-signaling-pathway
#5
Xinli Huang, Yun Gao, Jianjie Qin, Sen Lu
OBJECTIVE: To investigate the function of MEG3 in hepatic ischemia-reperfusion (HIR) progress, involving its association with the level of miR-34a during hypoxia-induced hypoxia re-oxygenation (H/R) in vitro. METHODS: HIR mice model in vivo was established.MEG3 , miR-34a expression, along with Nrf2 mRNA and protein level were detected in tissues and cells. Serum biochemical parameters (ALT and AST) were assessed in vivo. A potential binding region between MEG3 and miR34a was confirmed by luciferase assays...
July 14, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28700919/translating-cerna-susceptibilities-into-correlation-functions
#6
Araks Martirosyan, Matteo Marsili, Andrea De Martino
Competition to bind microRNAs induces an effective positive cross talk between their targets, which are therefore known as "competing endogenous RNAs" (ceRNAs). Although such an effect is known to play a significant role in specific situations, estimating its strength from data and experimentally in physiological conditions appears to be far from simple. Here, we show that the susceptibility of ceRNAs to different types of perturbations affecting their competitors (and hence their tendency to cross talk) can be encoded in quantities as intuitive and as simple to measure as correlation functions...
July 11, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28687357/circular-rna-mylk-as-a-competing-endogenous-rna-promotes-bladder-cancer-progression-through-modulating-vegfa-vegfr2-signaling-pathway
#7
Zhenyu Zhong, Mengge Huang, Mengxin Lv, Yunfeng He, Changzhu Duan, Luyu Zhang, Junxia Chen
Accumulating evidences indicate that circular RNAs (circRNAs) play a vital role in modulating gene expression. However, the mechanisms underlying circRNAs remain largely elusive. Here, we screened circRNA and mRNA expression profiles of bladder carcinoma (BC) using microarray analysis. We found that circRNA-MYLK and VEGFA were significantly up-regulated and co-expressed in BC. Importantly, circRNA-MYLK levels were related to the progression of stage and grade of BC. Mechanistically, we demonstrated that circRNA-MYLK could directly bind to miR-29a and relieve suppression for target VEGFA, which activated VEGFA/VEGFR2 signaling pathway...
July 4, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28675242/the-sigma-factor-sigd-of-mycobacterium-tuberculosis-putatively-enhances-gene-expression-of-the-septum-site-determining-protein-under-stressful-environments
#8
Miguel A Ares, Nora Rios-Sarabia, Miguel A De la Cruz, Sandra Rivera-Gutiérrez, Lázaro García-Morales, Lizbel León-Solís, Clara Espitia, Sabino Pacheco, Jorge F Cerna-Cortés, Cecilia A Helguera-Repetto, María Jesús García, Jorge A González-Y-Merchand
This work examined the expression of the septum site determining gene (ssd) of Mycobacterium tuberculosis CDC1551 and its ΔsigD mutant under different growing conditions. The results showed an up-regulation of ssd during stationary phase and starvation conditions, but not during in vitro dormancy, suggesting a putative role for SigD in the control of ssd expression mainly under lack-of-nutrients environments. Furthermore, we elucidated a putative link between ssd expression and cell elongation of bacilli at stationary phase...
July 4, 2017: New Microbiologica
https://www.readbyqxmd.com/read/28669840/characterization-of-circrna-associated-cerna-networks-in-a-senescence-accelerated-mouse-prone-8-brain
#9
Shuai Zhang, Dina Zhu, Hong Li, Hejian Li, Chengqiang Feng, Wensheng Zhang
Alzheimer's disease (AD) is one of the most common neurodegenerative diseases. Although many researchers have attempted to explain the origins of AD, developing an effective strategy in AD clinical therapy is difficult. Recent studies have revealed a potential link between AD and circRNA-associated-ceRNA networks. However, few genome-wide studies have identified the potential circRNA-associated-ceRNA pairs involved in AD. In this study, we systematically explored the circRNA-associated-ceRNA mechanism in a 7-month-old senescence-accelerated mouse prone 8 (SAMP8) model brain through deep RNA sequencing...
June 29, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28664538/integrative-analysis-of-circrnas-acting-as-cernas-involved-in-ethylene-pathway-in-tomato
#10
Yunxiang Wang, Qing Wang, Lipu Gao, Benzhong Zhu, Yunbo Luo, Zhiping Deng, Jinhua Zuo
Circular RNAs (circRNAs) are a large class of non-coding endogenous RNAs that could act as ceRNAs (Competing endogenous RNAs) to terminate the mRNA targets' suppression of miRNAs. To elucidate the intricate regulatory roles of circRNAs in the ethylene pathway in tomato fruit, deep sequencing and bioinformatics methods were performed. After strict screening, a total of 318 circRNAs were identified. Among these circRNAs, 282 were significantly differentially expressed among wild type and sense-/antisense-LeERF1 transgenic tomato fruits...
June 29, 2017: Physiologia Plantarum
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
#11
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
#12
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/28645161/lncrna-tug1-influences-papillary-thyroid-cancer-cell-proliferation-migration-and-emt-formation-through-targeting-mir-145
#13
Hongwei Lei, Yan Gao, Xiaoying Xu
LncRNA TUG1, a tumor oncogene associated with various human cancers, has been reported to be involved in regulating various cellular processes, such as proliferation, apoptosis and invasion through targeting multiple genes. However, its biological function in thyroid cancer cells has not been elucidated. The aim of this study is to measure TUG1 expression level and evaluate its function in thyroid cancer cells. LncRNA TUG1 expression levels in thyroid cancer tissues and three thyroid cancer cell lines (the ATC cell lines SW1736 and KAT18 and the FTC cell line FTC133) were assessed by qRT-PCR and compared with that of the human normal breast epithelial cell HGC-27...
June 22, 2017: Acta Biochimica et Biophysica Sinica
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
#14
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/28639886/a-competing-endogenous-rna-network-identifies-novel-mrna-mirna-and-lncrna-markers-for-the-prognosis-of-diabetic-pancreatic-cancer
#15
Kanyu Yao, Qi Wang, Jianhua Jia, Haiping Zhao
Pancreatic cancer (PaC) is highly associated with diabetes mellitus (DM). However, the mechanisms are insufficient. The study aimed to uncover the underlying regulatory mechanism on diabetic PaC and find novel biomarkers for the disease prognosis. Two RNA-sequencing (RNA-seq) datasets, GSE74629 and GSE15932, as well as relevant data in TCGA were utilized. After pretreatment, differentially expressed genes (DEGs) or miRNAs (DEMs) or lncRNAs (DELs) between diabetic PaC and non-diabetic PaC patients were identified, and further examined for their correlations with clinical information...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28639399/tp73-as1-promotes-breast-cancer-cell-proliferation-through-mir-200a-mediated-tfam-inhibition
#16
Jia Yao, Feng Xu, Danhua Zhang, Wenjun Yi, Xianyu Chen, Gannong Chen, Enxiang Zhou
P73 antisense RNA 1T (TP73-AS1 or PDAM) is a long non-coding RNA, which can regulate apoptosis through regulation of p53 signaling-related anti-apoptotic genes. An abnormal change of TP73-AS1 expression was noticed in cancers. The effects of TP73-AS1 in breast cancer (BC) growth and the underlying mechanism remain unclear so far. In the present study, the effect of TP73-AS1 in BC cell lines and clinical tumor samples was detected so as to reveal its role and function. In the present study, TP73-AS1 was specifically upregulated in BC tissues and BC cell lines and was correlated to a poorer prognosis in patients with BC...
June 21, 2017: Journal of Cellular Biochemistry
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
#17
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...
May 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28622785/comprehensive-long-non-coding-rna-expression-profiling-reveals-their-potential-roles-in-systemic-lupus-erythematosus
#18
Lian-Ju Li, Wei Zhao, Sha-Sha Tao, Jun Li, Shu-Zhen Xu, Jie-Bing Wang, Rui-Xue Leng, Yin-Guang Fan, Hai-Feng Pan, Dong-Qing Ye
Long non-coding RNAs can regulate gene transcription, modulate protein function, and act as competing endogenous RNA. Yet, their roles in systemic lupus erythematosus remain to be elucidated. We determined the expression profiles of lncRNAs in T cells of SLE patients and healthy controls using microarrays. Up to 1935 lncRNAs and 1977 mRNAs were differentially expressed. QRT-PCR showed downregulated uc001ykl.1 and ENST00000448942 in SLE patients. Expression of uc001ykl.1 correlated with erythrocyte sedimentation rate (ESR) and C-reactive protein, whereas ENST00000448942 level correlated with ESR and anti-Sm antibodies...
June 10, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/28621687/differentially-expressed-lncrnas-and-mirnas-with-associated-cerna-networks-in-aged-mice-with-postoperative-cognitive-dysfunction
#19
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
#20
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
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