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Glioma lncRNA

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https://www.readbyqxmd.com/read/28425476/lncrnas2pathways-identifying-the-pathways-influenced-by-a-set-of-lncrnas-of-interest-based-on-a-global-network-propagation-method
#1
Junwei Han, Siyao Liu, Zeguo Sun, Yunpeng Zhang, Fan Zhang, Chunlong Zhang, Desi Shang, Haixiu Yang, Fei Su, Yanjun Xu, Chunquan Li, Huan Ren, Xia Li
Long non-coding RNAs (lncRNAs) have been demonstrated to play essential roles in diverse cellular processes and biological functions. Exploring the functions associated with lncRNAs may help provide insight into their underlying biological mechanisms. The current methods primarily focus on investigating the functions of individual lncRNAs; however, essential biological functions may be affected by the combinatorial effects of multiple lncRNAs. Here, we have developed a novel computational method, LncRNAs2Pathways, to identify the functional pathways influenced by the combinatorial effects of a set of lncRNAs of interest based on a global network propagation algorithm...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28423669/the-novel-long-non-coding-rna-talnec2-regulates-tumor-cell-growth-and-the-stemness-and-radiation-response-of-glioma-stem-cells
#2
Shlomit Brodie, Hae Kyung Lee, Wei Jiang, Simona Cazacu, Cunli Xiang, Laila M Poisson, Indrani Datta, Steve Kalkanis, Doron Ginsberg, Chaya Brodie
Despite advances in novel therapeutic approaches for the treatment of glioblastoma (GBM), the median survival of 12-14 months has not changed significantly. Therefore, there is an imperative need to identify molecular mechanisms that play a role in patient survival. Here, we analyzed the expression and functions of a novel lncRNA, TALNEC2 that was identified using RNA seq of E2F1-regulated lncRNAs. TALNEC2 was localized to the cytosol and its expression was E2F1-regulated and cell-cycle dependent. TALNEC2 was highly expressed in GBM with poor prognosis, in GBM specimens derived from short-term survivors and in glioma cells and glioma stem cells (GSCs)...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28381990/knockdown-of-long-non-coding-rna-kcnq1ot1-restrained-glioma-cells-malignancy-by-activating-mir-370-ccne2-axis
#3
Wei Gong, Jian Zheng, Xiaobai Liu, Yunhui Liu, Junqing Guo, Yana Gao, Wei Tao, Jiajia Chen, Zhiqing Li, Jun Ma, Yixue Xue
Accumulating evidence has highlighted the potential role of long non-coding RNAs (lncRNAs) as biomarkers and therapeutic targets in solid tumors. Here, we elucidated the function and possible molecular mechanisms of lncRNA KCNQ1OT1 in human glioma U87 and U251 cells. Quantitative Real-Time polymerase chain reaction (qRT-PCR) demonstrated that KCNQ1OT1 expression was up-regulated in glioma tissues and cells. Knockdown of KCNQ1OT1 exerted tumor-suppressive function in glioma cells. Moreover, a binding region was confirmed between KCNQ1OT1 and miR-370 by dual-luciferase assays...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28379612/the-long-non-coding-rna-tp73-as1-interacted-with-mir-142-to-modulate-brain-glioma-growth-through-hmgb1-rage-pathway
#4
Rong Zhang, Hekun Jin, Fan Lou
P73 antisense RNA 1T (non-protein coding), also known as TP73-AS1 or PDAM, is a long non-coding RNA which may regulate apoptosis via regulation of p53-dependent anti-apoptotic genes. An abnormal change of TP73-AS1 expression was noticed in cancers. The effects of TP73-AS1 in brain glioma growth and the underlying mechanism remain unclear so far. In the present study, TP73-AS1 was specifically upregulated in brain glioma tissues and cell lines and was associated with poorer prognosis in patients with glioma...
April 5, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28368417/oncogenic-effects-of-evolutionarily-conserved-noncoding-rna-econexin-on-gliomagenesis
#5
S Deguchi, K Katsushima, A Hatanaka, K Shinjo, F Ohka, T Wakabayashi, H Zong, A Natsume, Y Kondo
Accumulating studies have demonstrated the importance of long noncoding RNAs (lncRNAs) during oncogenic transformation. However, because most lncRNAs are currently uncharacterized, the identification of novel oncogenic lncRNAs is difficult. Given that intergenic lncRNA have substantially less sequence conservation patterns than protein-coding genes across species, evolutionary conserved intergenic lncRNAs are likely to be functional. The current study identified a novel intergenic lncRNA, LINC00461 (ECONEXIN) using a combined approach consisting of searching lncRNAs by evolutionary conservation and validating their expression in a glioma mouse model...
April 3, 2017: Oncogene
https://www.readbyqxmd.com/read/28350082/hotair-upregulates-an-18-gene-cell-cycle-related-mrna-network-in-glioma
#6
Kai Huang, Jia Sun, Chao Yang, Yunfei Wang, Bingcong Zhou, Chunsheng Kang, Lei Han, Qixue Wang
HOTAIR is a tumor promoting long non-coding RNA (lncRNA) with roles in multiple cancers. However, the role of HOTAIR in glioma has not been well charaterized. Genes that positively correlated with HOTAIR were identified from the Chinese Glioma Genome Atlas and constructed into an interacting network. In total, 18 genes with P-values <0.01 were further extracted and constructed into a subnetwork. Real-time PCR, western blot and immunofluorescence analyses were employed to examine the expression of the genes after HOTAIR overexpression or knockdown...
March 7, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28338200/glioma-cells-promote-angiogenesis-through-the-release-of-exosomes-containing-long-non-coding-rna-pou3f3
#7
H-L Lang, G-W Hu, Y Chen, Y Liu, W Tu, Y-M Lu, L Wu, G-H Xu
OBJECTIVE: Angiogenesis is a key event in the progression of gliomas, and emerging evidence suggests that exosomes are signaling extracellular organelles that modulate the tumor microenvironment and promote angiogenesis and tumor progression. This study aimed to explore the mechanism by which glioma-derived exosomes affect angiogenesis. MATERIALS AND METHODS: qRT-PCR was used to determine the expression level of linc-POU3F3 in glioma tissue as well as glioma cell lines...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28293170/an-insight-into-the-increasing-role-of-lncrnas-in-the-pathogenesis-of-gliomas
#8
REVIEW
Yuanliang Yan, Zhijie Xu, Zhi Li, Lunquan Sun, Zhicheng Gong
Long non-coding RNAs (LncRNAs) are essential epigenetic regulators with critical roles in tumor initiation and malignant progression. However, the roles and mechanisms of aberrantly expressed lncRNAs in the pathogenesis of gliomas are not fully understood. With the development of deep sequencing analyses, an extensive amount of functional non-coding RNAs has been discovered in glioma tissues and cell lines. Additionally, the contributions of several lncRNAs, such as Hox transcript antisense intergenic RNA, H19 and Colorectal neoplasia differentially expressed, previously reported to be involved in other pathogenesis and processes to the oncogenesis of glioblastoma are currently addressed...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28287613/knockdown-of-long-non-coding-rna-xist-increases-blood-tumor-barrier-permeability-and-inhibits-glioma-angiogenesis-by-targeting-mir-137
#9
H Yu, Y Xue, P Wang, X Liu, J Ma, J Zheng, Z Li, Z Li, H Cai, Y Liu
Antiangiogenic therapy plays a significant role in combined glioma treatment. However, poor permeability of the blood-tumor barrier (BTB) limits the transport of chemotherapeutic agents, including antiangiogenic drugs, into tumor tissues. Long non-coding RNAs (lncRNAs) have been implicated in various diseases, especially malignant tumors. The present study found that lncRNA X-inactive-specific transcript (XIST) was upregulated in endothelial cells that were obtained in a BTB model in vitro. XIST knockdown increased BTB permeability and inhibited glioma angiogenesis...
March 13, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28276316/long-noncoding-rna-meg3-suppresses-glioma-cell-proliferation-migration-and-invasion-by-acting-as-competing-endogenous-rna-of-mir-19a
#10
Gui-Feng Tong, Nan Qin, Li-Wei Sun, Xiao-Lin Xu
Glioma, with varying malignancy grades and histological subtypes, is the commonest primary brain tumor in adults. Longnon-coding RNAs (lncRNAs) are non-protein-coding transcripts and have been proven to play important roles in tumorigenesis. Our study aims to elucidate the combined effect of lncRNA MEG3 and microRNA-19a in human glioma U87 and U251 cell lines. Real time PCR revealed that MEG3 was down-regulated and miR-19a was up-regulated in malignant glioma tissues and cell lines. Bioinformatics analyses (TargetScan, miRanda and starBase V2...
March 8, 2017: Oncology Research
https://www.readbyqxmd.com/read/28276314/long-non-coding-rna-pvt1-facilitates-cervical-cancer-progression-via-negative-regulating-of-mir-424
#11
Ya-Li Gao, Zi-Shen Zhao, Ming-Yun Zhang, Li-Jie Han, Yu-Jin Dong, Bo Xu
Emerging evidence suggests that the long non-coding RNA (lncRNA) plasmacytoma variant translocation 1 gene (PVT1) is involved in pathogenesis of cervical cancer. However, the potential mechanism is rarely reported. Our study found that PVT1 was up-regulated in cervical cancer tissue and cell lines. After transfecting PVT1 siRNA, the proliferation, migration and invasion of cervical cancer cells were markedly decreased. MiRNA expression profiles demonstrate that miR-424 was markedly down-regulated in cervical cancer tissue...
March 8, 2017: Oncology Research
https://www.readbyqxmd.com/read/28260102/long-non-coding-rna-malat1-interacts-with-mir-124-and-modulates-tongue-cancer-growth-by-targeting-jag1
#12
Tong-Han Zhang, Li-Zhong Liang, Xiao-Ling Liu, Ji-Nan Wu, Kui Su, Jue-Yao Chen, Qiao-Yi Zheng, Hong-Zhang Huang, Gui-Qing Liao
Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), a long non-coding RNA (lncRNA), was the earliest discovered to be correlated with cancer and contributes to the initiation and development of several types of tumors. Dysregulation of MALAT1 expression is frequently observed in many types of cancer such as gastric cancer, esophageal squamous cell carcinoma and glioma. To date, the role of MALAT1 and the underlying mechanisms in tongue cancer development remain unclear. In the present study, we studied the influence of MALAT1 on tongue cancer cell lines and clinical tongue cancer samples so as to detect its function and the underlying mechanism...
April 2017: Oncology Reports
https://www.readbyqxmd.com/read/28187755/long-noncoding-rna-papillary-thyroid-carcinoma-susceptibility-candidate-3-ptcsc3-inhibits-proliferation-and-invasion-of-glioma-cells-by-suppressing-the-wnt-%C3%AE-catenin-signaling-pathway
#13
Shujun Xia, Ri Ji, Weiwei Zhan
BACKGROUND: The dysregulation of long noncoding RNAs (lncRNAs) has been identified in a variety of cancers. An increasing number of studies have found the critical role of lncRNAs in the regulation of cellular processes, such as proliferation, invasion and differentiation. Long noncoding RNA papillary thyroid carcinoma susceptibility candidate 3 (PTCSC3) is a novel lncRNA that was primarily detected in papillary thyroid carcinoma. However, the biological function and molecular mechanism of lncRNA PTCSC3 in glioma are still unknown...
February 10, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28187439/long-non-coding-rna-in-glioma-signaling-pathways
#14
REVIEW
Jia Shi, Bo Dong, Jiachao Cao, Yumin Mao, Wei Guan, Ya Peng, Suinuan Wang
Glioma is regarded as the most prevalent malignant carcinoma of the central nervous system. Thus, the development of new therapeutic strategies targeting glioma is of significant clinical importance. Long non-coding RNAs (lncRNAs) are functional RNA molecules without a protein-coding function and are reportedly involved in the initiation and progression of glioma. Dysregulation of lncRNAs in glioma is due to activation of several signaling pathways, such as the BRD4-HOTAIR-β-catenin/PDCD4, p53-Hif-H19/IGF2 and CRNDE/mTOR pathways...
February 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28185956/long-non-coding-rna-neat1-regulates-permeability-of-the-blood-tumor-barrier-via-mir-181d-5p-mediated-expression-changes-in-zo-1-occludin-and-claudin-5
#15
Junqing Guo, Heng Cai, Jun Ma, Xiaobai Liu, Yunhui Liu, Jian Zheng, Zhongyou Que, Wei Gong, Yana Gao, Wei Tao, Yixue Xue
The blood-tumor barrier (BTB) constitutes an efficient organization of tight junctions that limits the delivery of chemotherapeutic drugs to brain tumor tissues and impacts the treatment of glioma. Long non-coding RNAs (lncRNAs) are non-protein coding RNAs regulating gene expression, some lncRNAs play a crucial role in BTB permeability. However, the function of lncRNAs in BTB permeability is still largely unclear. Here, we have identified lncRNA nuclear paraspeckle assembly transcript 1 (NEAT1), was remarkably up-regulated in glioma endothelial cells (GECs) obtained from an in vitro BTB model...
February 6, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28137422/the-lncrna-uca1-interacts-with-mir-182-to-modulate-glioma-proliferation-and-migration-by-targeting-iaspp
#16
Zongze He, Yujue Wang, Guangfu Huang, Qi Wang, Dongdong Zhao, Longyi Chen
Long non-coding RNA (lncRNA) urothelial carcinoma associated 1 (UCA1) has been reported to be involved in the development and progression of many types of tumors including breast cancer, gastric cancer, and bladder cancer. However, the exact effects and molecular mechanisms of UCA1 in glioma progression remain unclear up to now. In this study, we firstly found that UCA1 was upregulated in glioma tumor samples and negatively correlated with survival time. Then, we investigated the role of UCA1 in human glioma cell lines...
January 27, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28121023/lncrna-casc2-interacts-with-mir-181a-to-modulate-glioma-growth-and-resistance-to-tmz-through-pten-pathway
#17
Liao Yiwei, Shen Liangfang, Zhao Haiting, Liu Qing, Fu Jun, Guo Yong, Peng Renjun, Cheng Lei
Temozolomide (TMZ)-based chemotherapy is a standard strategy for glioma, while chemoresistance remains a major therapeutic challenge. Recent evidence highlights the crucial regulatory roles of long non-coding RNAs (lncRNA) in tumor biology. However, the roles and regulatory mechanisms of lncRNA cancer susceptibility candidate 2 (CASC2), in glioma tumorigenesis and chemoresistance are poorly understood. In this study, CASC2 expression was down-regulated in glioma tissues and cell lines, and was related to a clinicopathologic features and shorter survival time...
January 25, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28107175/long-non-coding-rnas-potential-molecular-biomarkers-for-gliomas-diagnosis-and-prognosis
#18
Lei Wang, Zhengtao Yu, Shaiqi Sun, Jun Peng, Rongjun Xiao, Shengpan Chen, Xiaokun Zuo, Quan Cheng, Ying Xia
The current grade classification system of gliomas is based on the histopathological features of these tumors and has great significance in defining groups of patients for clinical assessment. However, this classification system is also associated with a number of limitations, and as such, additional clinical assessment criteria are required. Long non-coding RNAs (lncRNAs) play a critical role in cellular functions and are currently regarded as potential biomarkers for glioma diagnosis and prognosis. Therefore, the molecular classification of glioma based on lncRNA expression may provide additional information to assist in the systematic identification of glioma...
January 20, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/28105536/a-long-noncoding-rna-uca1-promotes-proliferation-and-predicts-poor-prognosis-in-glioma
#19
W Zhao, C Sun, Z Cui
BACKGROUND: Acting as a proto-oncogene, long noncoding RNAs (lncRNAs) urothelial carcinoembryonic antigen 1 (UCA1) plays a key role in the occurrence and development of several human tumors. However, the expression and biological functions of UCA1 in glioma are less known. This study discussed the expression of UCA1 in glioma and its effect on the proliferation and cell cycle of glioma cells. METHOD: LncRNA UCA1 expressions in 64 glioma samples (Grade I-II in 22 cases and Grade III-IV in 42 cases, according to WHO criteria) and 10 normal brain samples were detected using real-time fluorescence quantitative PCR...
January 19, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28081466/long-non-coding-rna-zfas1-is-an-unfavourable-prognostic-factor-and-promotes-glioma-cell-progression-by-activation-of-the-notch-signaling-pathway
#20
Kai Gao, Zhiwu Ji, Kun She, Qingyan Yang, Lianbin Shao
Survival of patients with glioma remains poor, which is largely attributed to active carcinogenesis. Accumulating evidence indicates that long non-coding RNAs (lncRNAs) play key roles in tumor initiation and progression. However, the function of lncRNA ZFAS1 in glioma is still unclear. In the current study, we found that ZFAS1 was upregulated in glioma tissues and cell lines. High ZFAS1 expression in glioma tissues was significantly correlated with advanced tumor stage and poor overall survival. Furthermore, in vitro assays demonstrated that ZFAS1 inhibition significantly suppressed glioma cell proliferation, migration and invasion...
March 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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