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https://www.readbyqxmd.com/read/29207151/long-non%C3%A2-coding-nuclear-paraspeckle-assembly-transcript-1-acts-as-prognosis-biomarker-and-increases-cell-growth-and-invasion-in-cervical-cancer-by-sequestering-microrna%C3%A2-101
#1
Li Wang, Hongying Zhu
Emerging studies have focused on the essential role of long non‑coding RNAs (lncRNAs) in cervical carcinogenesis. A recent study has indicated that nuclear paraspeckle assembly transcript 1 (NEAT1) is highly expressed in the human cervical tissue. However, whether NEAT1 is involved in cervical cancer remains to be elucidated. Reverse transcription‑quantitative polymerase chain reaction results demonstrated that the expression of NEAT1 was higher in cervical cancer cells/tissues compared with that in normal human keratinocytes/tissues...
November 29, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29205703/lncrna-neat1-promotes-dexamethasone-resistance-in-multiple-myeloma-by-targeting-mir-193a-mcl1-pathway
#2
Yilan Wu, Han Wang
Although dexamethasone (DEX) remains a first-line agent for multiple myeloma (MM) therapy, the development of DEX resistance has become an indicator of poor prognosis in MM patients. It is thus urgent to develop strategies to restore the vulnerability of MM to DEX. This study demonstrated long non-coding RNA (lncRNA) nuclear paraspeckle assembly transcript 1 (NEAT1) was highly expressed in DEX-resistant myeloma cell lines, and upregulation of NEAT1 was tightly linked to poor prognosis. The in-depth study revealed that during the development of DEX resistance in these cells, the miR-193a levels were decreased, which resulted in the increased expression of the target gene myeloid cell leukemia-1 (MCL1)...
December 4, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/29180871/lncrna-neat1-contributes-to-paclitaxel-resistance-of-ovarian-cancer-cells-by-regulating-zeb1-expression-via-mir-194
#3
Jihong An, Weiling Lv, Yongzhou Zhang
Background: Chemoresistance is one of the major obstacles for cancer therapy in the clinic. Nuclear paraspeckle assembly transcript 1 (NEAT1) has been reported as an oncogene in most malignancies such as lung cancer, esophageal cancer, and gastric cancer. This study is designed to investigate the function of NEAT1 in paclitaxel (PTX) resistance of ovarian cancer and its potential molecular mechanism. Patients and methods: The expressions of NEAT1 and miR-194 in ovarian cancer tissues and cells were estimated by quantitative real-time polymerase chain reaction (qRT-PCR)...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29176322/differential-expression-profiles-of-the-transcriptome-in-breast-cancer-cell-lines-revealed-by-next-generation-sequencing
#4
Yu Shi, Peng Ye, Xinghua Long
BACKGROUND/AIMS: As MCF-7 and MDA-MB-231 cells are the typical cell lines of two clinical breast tumour subtypes, the aim of the present study was to elucidate the transcriptome differences between MCF-7 and MDA-MB-231 breast cancer cell lines. METHODS: The mRNA, miRNA (MicroRNA) and lncRNA (Long non-coding RNA) expression profiles were examined using NGS (next generation sequencing) instrument Illumina HiSeq-2500. GO (Gene Ontology) and KEGG (Kyoto Encyclopedia of Genes and Genomes) pathway analyses were performed to identify the biological functions of differentially expressed coding RNAs...
November 24, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29152741/neat1-acts-as-an-inducer-of-cancer-stem-cell-like-phenotypes-in-nsclc-by-inhibiting-egcg-upregulated-ctr1
#5
Pan Jiang, Aochang Chen, Xiaoyue Wu, Ming Zhou, Ijaz Ul Haq, Zahula Mariyam, Qing Feng
Long non-coding RNAs (lncRNAs) play significant roles in the pathogenesis of various cancers, including lung cancer. In this study, we aimed to investigate the biological function of lncRNA nuclear enriched abundant transcript 1 (NEAT1) in cancer stem cells (CSCs). CSCs have been suggested as the main cause of tumor metastasis, tumor recurrence and chemotherapy resistance. The copper transporter 1 (CTR1) has been the focus of many recent studies because of its correlation with cisplatin (CDDP) resistance. So far, the mechanism of how NEAT1 regulates CSCs in NSCLC remains unknown...
November 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29147064/lncrna-neat1-regulates-cell-viability-and-invasion-in-esophageal-squamous-cell-carcinoma-through-the-mir-129-ctbp2-axis
#6
Yong Li, Dong Chen, Xiang Gao, Xiaohui Li, Gongning Shi
Background: Long noncoding RNA nuclear paraspeckle assembly transcript 1 (NEAT1) was reported to be aberrantly upregulated and promote esophageal squamous cell carcinoma (ESCC) cell progression. Nevertheless, the molecular mechanism of NEAT1 involved in the competing endogenous RNA (ceRNA) regulatory network in ESCC progression remains poorly defined. Methods: The expressions of NEAT1, miR-129, and C-terminal-binding protein 2 (CTBP2) in ESCC cells were examined by qRT-PCR...
2017: Disease Markers
https://www.readbyqxmd.com/read/29138341/long-non-coding-rna-neat1-regulated-by-the-egfr-pathway-contributes-to-glioblastoma-progression-through-the-wnt-%C3%AE-catenin-pathway-by-scaffolding-ezh2
#7
Qun Chen, Jinquan Cai, Qixue Wang, Yunfei Wang, Mingyang Liu, Jingxuan Yang, Junhu Zhou, Chun-Sheng Kang, Min Li, Chuanlu Jiang
PURPOSE: Long noncoding RNAs have been implicated in gliomagenesis, but their mechanisms of action are mainly undocumented. Through public glioma mRNA expression datasets, we found that NEAT1 was a potential oncogene. We systematically analyzed the clinical significance and mechanism of NEAT1 in glioblastoma. EXPERIMENTAL DESIGN: Initially, we evaluated whether NEAT1 expression levels could be regulated by EGFR pathway activity. We subsequently evaluated the effect of NEAT1 on the WNT/β-Catenin pathway and its target binding gene...
November 14, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29137430/genome-wide-analysis-and-functional-prediction-of-long-non-coding-rnas-in-mouse-uterus-during-the-implantation-window
#8
Qi Wang, Nan Wang, Rui Cai, Fan Zhao, Yongjie Xiong, Xiao Li, Aihua Wang, Pengfei Lin, Yaping Jin
Establishment of the receptive uterus is a crucial step for embryo implantation. In this study, the expression profiles and characterization of long non-coding RNAs (lncRNAs) in pregnant mouse uteri on day 4, day 5 at implantation sites and inter-implantation sites were conducted using RNA-seq. A total of 7,764 putative lncRNA transcripts were identified, including 6,179 known lncRNA transcripts and 1,585 novel lncRNA transcripts. Bioinformatics analysis of the cis and trans lncRNA targets showed that the differentially expressed lncRNAs were mainly involved in tissue remodelling, immune response and metabolism-related processes, indicating that lncRNAs could be involved in the regulation of embryo implantation...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29113206/nuclear-paraspeckle-assembly-transcript-1-promotes-the-metastasis-and-epithelial-mesenchymal-transition-of-hepatoblastoma-cells-by-inhibiting-mir-129-5p
#9
Ming-Cui Fu, Li-Qun Yuan, Ting Zhang, Xiang-Ming Yan, Yun Zhou, Hong-Liang Xia, Yi Wu, Li-Xiao Xu, Xu Cao, Jian Wang
The abnormal expression of nuclear paraspeckle assembly transcript 1 (NEAT1) may serve critical functions for the development and progression of various types of human tumor. However, the expression and biological function of NEAT1 in hepatoblastoma (HB) and the underlying mechanisms for the function of NEAT1 in HB remain largely uncharacterized. In the present study, the results of reverse transcription-quantitative polymerase chain reaction revealed that the expression of NEAT1 was significantly elevated in HB tissues...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29111326/c-ebp%C3%AE-contributes-to-transcriptional-activation-of-long-non-coding-rna-neat1-during-apl-cell-differentiation
#10
Yewei Wang, Lei Fu, Ailian Sun, Doudou Tang, Yunxiao Xu, Zheyuan Li, Mingjie Chen, Guangsen Zhang
Emerging evidences have shown that long non-coding RNAs (lncRNAs) play critical roles in cancer development and cancer therapy. LncRNA Nuclear Enriched Abundant Transcript 1 (NEAT1) is indispensable during acute promyelocytic leukemia (APL) cell differentiation induced by all-trans retinoic acid (ATRA). However, the precise mechanism of NEAT1 upregulation has not been fully understood. In this study, we performed chromatin immunoprecipitation and luciferase reporter assays to demonstrate that C/EBP family transcription factor C/EBPβ bind to and transactivate the promoter of lncRNA NEAT1 through the C/EBPβ binding sites both around -54 bp and -1453 bp upstream of the transcription start site...
October 27, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29095526/neat1-has-mir-98-5p-mapk6-axis-is-involved-in-non-small-cell-lung-cancer-nsclc-development
#11
Feima Wu, Qiang Mo, Xiaoling Wan, Jialong Dan, Haibo Hu
lncRNAs or microRNAs belong to the most two important non-coding RNAs and they are involved in a lot of cancers, including non-small cell lung cancer (NSCLC). Therefore, currently, we focused on the biological and clinical significance of lncRNA nuclear enriched abundant transcript 1 (NEAT1) and hsa-mir-98-5p in NSCLC. It was observed that NEAT1 was upregulated while hsa-mir-98-5p was downregulated respectively in NSCLC cell lines compared to human normal lung epithelial BES-2B cells. Inhibition of NEAT1 can suppress the progression of NSCLC cells and hsa-mir-98-5p can reverse this phenomenon...
November 2, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29094395/estrogen-receptor-signaling-in-prostate-cancer-implications-for-carcinogenesis-and-tumor-progression
#12
REVIEW
Helmut Bonkhoff
BACKGROUND: The androgen receptor (AR) is the classical target for prostate cancer prevention and treatment, but more recently estrogens and their receptors have also been implicated in prostate cancer development and tumor progression. METHODS: Recent experimental and clinical data were reviewed to elucidate pathogenetic mechanisms how estrogens and their receptors may affect prostate carcinogenesis and tumor progression. RESULTS: The estrogen receptor beta (ERβ) is the most prevalent ER in the human prostate, while the estrogen receptor alpha (ERα) is restricted to basal cells of the prostatic epithelium and stromal cells...
November 2, 2017: Prostate
https://www.readbyqxmd.com/read/29091312/hif-2%C3%AE-activated-lncrna-neat1-promotes-hepatocellular-carcinoma-cell-invasion-and-metastasis-by-affecting-the-epithelial-mesenchymal-transition
#13
Xiaowei Zheng, Yiwen Zhang, Yujia Liu, Luo Fang, Li Li, Jiao Sun, Zongfu Pan, Wenxiu Xin, Ping Huang
OBJECTIVE: The aim of this study was to investigate the role of NEAT1 in hepatocellular carcinoma (HCC), and probe whether NEAT1 participate in the epithelial-mesenchymal transition (EMT) and metastasis regulated by HIF-2α. METHODS: Expression of lncRNA NEAT1 was initially assessed in HCC tissues and in a series of HCC cell lines. The correlations between NEAT1 levels and HIF-2α were analyzed through plasmid vector construction. The potential underlying mechanisms of NEAT1 in HCC were performed through in vitro and in vivo functional assays...
November 1, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29062236/neat1-regulates-cell-proliferation-and-apoptosis-of-ovarian-cancer-by-mir-34a-5p-bcl2
#14
Nan Ding, Haiying Wu, Tao Tao, Erxuan Peng
BACKGROUND: Nuclear enriched abundant transcript 1 (NEAT1) has been demonstrated to act as a tumor inhibitor in many cancers. However, the role of NEAT1 in the development of ovarian cancer (OC) remains far from being elaborated. Hence, the aim of this study is to investigate the expression and function of NEAT1 in OC. MATERIALS AND METHODS: The expression level of NEAT1 was determined by quantitative real-time polymerase chain reaction in OC cell lines. MTT assay, caspase-3 activity assay, and flow cytometry analysis were conducted to investigate the effects of NEAT1, miR-34a-5p, or B-cell lymphoma-2 (BCL2) on OC cell proliferation and apoptosis...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29050268/long-non-coding-rna-neat1-regulates-epithelial-membrane-protein-2-expression-to-repress-nasopharyngeal-carcinoma-migration-and-irradiation-resistance-through-mir-101-3p-as-a-competing-endogenous-rna-mechanism
#15
Yujia Wang, Chunting Wang, Can Chen, Fengbo Wu, Pengfei Shen, Peng Zhang, Gu He, Xiang Li
The altered expression of long non-coding RNAs (lncRNAs) is often related to carcinogenesis, metastasis and resistance to radiation or chemotherapy. In the current study, cDNA microarray analysis found that NEAT1 expression was reduced in nasopharyngeal carcinoma (NPC) patients and that it regulated NPC progression. However, the detailed mechanisms of NEAT1 in NPC were unclear. NEAT1 repressed NPC cell growth, invasion and radiation resistance in vitro and tumor metastasis in vivo. In addition, the results of an approach integrating bioinformatics, luciferase reporter assays and RNA immunoprecipitation indicated that NEAT1 antagonized miR-101-3p through a competing endogenous RNA (ceRNA) mechanism and that the interaction between NEAT1 and EMP2 was miR-101-3p dependent...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29047232/knockdown-of-long-non-coding-rna-neat1-inhibits-proliferation-and-invasion-and-induces-apoptosis-of-osteosarcoma-by-inhibiting-mir-194-expression
#16
Heping Wang, Yanzhang Yu, Shuxin Fan, Leifeng Luo
PURPOSE: Long non-coding RNA (lncRNA) nuclear paraspeckle assembly transcript 1 (NEAT1) has been implicated as an oncogene in the development and progression of osteosarcoma. This study aims to explore the mechanism of NEAT1 in osteosarcoma. MATERIALS AND METHODS: Expressions of NEAT1 and miR-194 in osteosarcoma tissues and cells were detected by quantitative real-time PCR. The effects of NEAT1 knockdown or miR-194 overexpression on cell proliferation, invasion, and apoptosis were determined by 3-[4, 5-dimethylthiazol-2-yl]-2, 5 diphenyl tetrazolium bromide (MTT) assay, transwell invasive assay, and flow cytometry analysis, respectively...
November 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/29033980/cellular-physiological-and-pathological-aspects-of-the-long-non-coding-rna-neat1
#17
Pang-Kuo Lo, Benjamin Wolfson, Qun Zhou
BACKGROUND: The majority of mammalian genomes have been found to be transcribed into non-coding RNAs. One category of non-coding RNAs is classified as long non-coding RNAs (lncRNAs) based on their transcript sizes larger than 200 nucleotides. Growing evidence has shown that lncRNAs are not junk transcripts and play regulatory roles in multiple aspects of biological processes. Dysregulation of lncRNA expression has also been linked to diseases, in particular cancer. Therefore, studies of lncRNAs have attracted significant interest in the field of medical research...
December 2016: Frontiers in Biology
https://www.readbyqxmd.com/read/29031635/correlation-of-altered-expression-of-a-long-non-coding-rna-neat1-in-peripheral-blood-mononuclear-cells-with-dengue-disease-progression
#18
Abhay Deep Pandey, Saptamita Goswami, Shweta Shukla, Shaoli Das, Suman Ghosal, Manisha Pal, Bhaswati Bandyopadhyay, Vishnampettai Ramachandran, Nandita Basu, Vikas Sood, Priyanka Pandey, Jayprokas Chakrabarti, Sudhanshu Vrati, Arup Banerjee
The association of long non-coding RNAs (lncRNAs) with dengue disease progression is currently unknown. Therefore, the present study aimed to identify lncRNAs in different categories of dengue patients and evaluate their association with dengue disease progression. Herein, we examined the expression profiles of lncRNAs and protein-coding genes between other febrile illness (OFI) and different grade of dengue patients through high-throughput RNA sequencing. We identified Nuclear Enriched Abundant Transcript 1 (NEAT1) as one of the differentially expressed lncRNAs (adjusted P ≤ 0...
October 12, 2017: Journal of Infection
https://www.readbyqxmd.com/read/29026116/the-value-of-lncrna-neat1-as-a-prognostic-factor-for-survival-of-cancer-outcome-a-meta-analysis
#19
Yunyuan Zhang, Limin Lun, Hui Li, Qing Wang, Jieru Lin, Runhua Tian, Huazheng Pan, Haiping Zhang, Xian Chen
The present meta-analysis aimed to analyze available data to identify the prognostic role of NEAT1 in multiple carcinomas. A systematic search was performed by using several computerized databases from inception to June 7, 2017. The quantity of the publications was assessed according to MOOSE checklist. Pooled HRs with 95% CI was calculated to summarize the effect. A total of 12 studies with 3,262 cancer patients were pooled in the analysis to evaluate the prognostic value of NEAT1 in multiple tumors. High expression levels of NEAT1 were demonstrated to be associated with poor OS (HR = 1...
October 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29025584/regulatory-mechanisms-of-long-noncoding-rnas-on-gene-expression-in-cancers
#20
REVIEW
Weiliang Sun, Yunben Yang, Chunjing Xu, Junming Guo
Long non-coding RNAs (lncRNAs) are a heterogeneous class of RNAs that are non-protein coding transcripts longer than 200 nucleotides. In this review, we introduce the mechanisms by which lncRNAs regulate gene expression in four parts, epigenetic regulation (genetic imprinting and chromatin remodeling), transcriptional regulation (molecular decoy), post-transcriptional regulation (splicing and mRNA decay), and translational regulation. H19, Xist, and others are involved in genomic imprinting. HOTAIR and ANRIL function in chromatin remodeling...
October 2017: Cancer Genetics
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