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glioma and lncRNA

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https://www.readbyqxmd.com/read/29218099/long-non-coding-rna-hotair-enhances-angiogenesis-by-induction-of-vegfa-expression-in-glioma-cells-and-transmission-to-endothelial-cells-via-glioma-cell-derived-extracellular-vesicles
#1
Xin Ma, Zhaohui Li, Ting Li, Linwensi Zhu, Zhenshengnan Li, Nan Tian
Gliomas are one the most prevalent malignant carcinomas of the central nervous system, and angiogenesis plays a critical role in the progression of these blood vessel-rich tumors. HOTAIR, a long non-coding RNA (lncRNA), acts as an oncogene in gliomas; however, its role in glioma angiogenesis remains unclear. In the present study, we identified a pro-angiogenic activity of HOTAIR. Silencing HOTAIR inhibited glioma-induced endothelial cell proliferation, migration, and tube formation. Further studies showed that vascular endothelial growth factor A (VEGFA) was involved in the HOTAIR-induced glioma angiogenesis...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/29187887/long-non-coding-rna-xist-promotes-glioma-tumorigenicity-and-angiogenesis-by-acting-as-a-molecular-sponge-of-mir-429
#2
Zhihua Cheng, Zhenshengnan Li, Ke Ma, Xiaoyu Li, Nan Tian, Jinyue Duan, Xu Xiao, Yi Wang
Glioma is a worldwide malignancy, which displays significantly active metastasis and angiogenesis. Interaction between long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) has been shown to play crucial role in regulating tumor properties. However, the potential of lncRNA X-inactive specific transcript (XIST) to function as a miRNA regulator and its relevance in glioma tumorigenicity and angiogenesis have so far remained unclear. Expression analysis of lncRNA XIST in glioma cells revealed its significant up-regulation...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29181061/up-regulation-of-the-long-non-coding-rna-rmrp-contributes-to-glioma-progression-and-promotes-glioma-cell-proliferation-and-invasion
#3
Wenxian Feng, Li Li, Xuchang Xu, Yunqi Jiao, Wei Du
Introduction: Gliomas are the most common malignant tumors of the brain. Long non-coding RNAs (lncRNAs) play key regulatory roles in various tumors. In this study, we aimed to determine the expression and biological roles of lncRNA RMRP in glioma. Material and methods: The relative expression level of lncRNA RMRP was determined by quantitative real-time polymerase chain reaction (qRT-PCR) in a total of 39 patients with glioma. RNA interference (RNAi) approaches were used to investigate the biological functions of RMRP...
October 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29170907/an-immune-related-lncrna-signature-for-patients-with-anaplastic-gliomas
#4
Wen Wang, Zheng Zhao, Fan Yang, Haoyuan Wang, Fan Wu, Tingyu Liang, Xiaoyan Yan, Jiye Li, Qing Lan, Jiangfei Wang, Jizong Zhao
We investigated immune-related long non-coding RNAs (lncRNAs) that may be exploited as potential therapeutic targets in anaplastic gliomas. We obtained 572 lncRNAs and 317 immune genes from the Chinese Glioma Genome Atlas microarray and constructed immune-related lncRNAs co-expression networks to identify immune-related lncRNAs. Two additional datasets (GSE16011, REMBRANDT) were used for validation. Gene set enrichment analysis and principal component analysis were used for functional annotation. Immune-lncRNAs co-expression networks were constructed...
November 23, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29152149/the-long-non-coding-rna-crnde-acts-as-a-cerna-and-promotes-glioma-malignancy-by-preventing-mir-136-5p-mediated-downregulation-of-bcl-2-and-wnt2
#5
Dong-Xue Li, Xiao-Rui Fei, Yong-Fei Dong, Chuan-Dong Cheng, Yang Yang, Xue-Fei Deng, Hai-Liang Huang, Wan-Xiang Niu, Chen-Xu Zhou, Cheng-Yu Xia, Chao-Shi Niu
The colorectal neoplasia differentially expressed (CRNDE) gene encodes a long non-coding RNA (lncRNA) that is the most unregulated among 129 lncRNAs differentially expressed in gliomas. In this study, we confirmed high CRNDE expression in clinical glioma specimens and observed through experiments in human glioma cell lines a novel molecular mechanism by which CRNDE may contribute to glioma pathogenesis. By inducing or silencing CRNDE expression, we detected a positive correlation between CRNDE levels and the proliferative, migratory, and invasive capacities of glioma cells, which were concomitant with a decreased apoptosis rate...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29138748/identifying-novel-glioma-associated-noncoding-rnas-by-their-expression-profiles
#6
Alenka Matjašič, Mojca Tajnik, Emanuela Boštjančič, Mara Popović, Boštjan Matos, Damjan Glavač
Long noncoding RNAs (lncRNAs) and microRNAs (miRNAs) play a significant role in cancer development as regulators of protein-coding genes. Their dysregulation was in some extent already associated with glioma, the most aggressive primary brain tumours in adults. The correct diagnosis and treatment selection due to high tumour heterogeneity might be difficult and inadequate, resulting in poor prognosis. Studies of expression patterns of noncoding RNAs (ncRNAs) could provide useful insight in glioma molecular development...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/29136760/upregulation-of-casc2-sensitized-glioma-to-temozolomide-cytotoxicity-through-autophagy-inhibition-by-sponging-mir-193a-5p-and-regulating-mtor-expression
#7
Chunming Jiang, Fang Shen, Jianmin Du, Xiang Fang, Xiaoli Li, Jin Su, Xiaohua Wang, Xianmei Huang, Zhangli Liu
OBJECTIVE: Numerous studies suggested autophagy was involved in temozolomide (TMZ) resistance in glioma. Long non-coding RNA (lncRNA) CASC2 was shown to be downregulated in glioma tissues and cell lines, and was related to the TMZ resistance. However, whether CASC2 affects TMZ resistance through regulating autophagy is unknown. The aim of this study was to assess the role and mechanism of CASC2 in TMZ-induced drug resistance in glioma cells. METHODS: Glioma and the adjacent non-cancerous tissues from 32 patients were collected...
November 6, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29132362/knockdown-of-sox2ot-inhibits-the-malignant-biological-behaviors-of-glioblastoma-stem-cells-via-up-regulating-the-expression-of-mir-194-5p-and-mir-122
#8
Rui Su, Shuo Cao, Jun Ma, Yunhui Liu, Xiaobai Liu, Jian Zheng, Jiajia Chen, Libo Liu, Heng Cai, Zhen Li, Lini Zhao, Qianru He, Yixue Xue
BACKGROUND: Accumulating evidence has highlighted the potential role of long non-coding RNAs (lncRNAs) in the biological behaviors of glioblastoma stem cells (GSCs). Here, we elucidated the function and possible molecular mechanisms of the effect of lncRNA-SOX2OT on the biological behaviors of GSCs. RESULTS: Real-time PCR demonstrated that SOX2OT expression was up-regulated in glioma tissues and GSCs. Knockdown of SOX2OT inhibited the proliferation, migration and invasion of GSCs, and promoted GSCs apoptosis...
November 13, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/29113674/lncrna-zeb1-as1-predicts-unfavorable-prognosis-in-gastric-cancer
#9
Yanliang Li, Xiaowen Wen, Longgang Wang, Xianjun Sun, Heng Ma, Zheng Fu, Leping Li
OBJECTIVES: LncRNA ZEB1 Antisense 1 (ZEB1-AS1) has been suggested to be an oncogenic role in human hepatocellular carcinoma, osteosarcoma, glioma and esophageal carcinoma progression. However, the clinical significance and biological function of ZEB1-AS1 in gastric cancer is poorly understood. METHODS: Levels of ZEB1-AS1 expression in gastric cancer tissues and cell lines were detected by qRT-PCR. Loss-of-function and gain-of-function studies were conducted to explore the biological function of ZEB1-AS1 in gastric cancer cells migration, invasion and EMT process...
December 2017: Surgical Oncology
https://www.readbyqxmd.com/read/29089067/knockdown-of-long-non-coding-rna-lucat1-inhibits-cell-viability-and-invasion-by-regulating-mir-375-in-glioma
#10
Yan-Sheng Gao, Xian-Zhi Liu, Yong-Gang Zhang, Xian-Jin Liu, Ling-Zhen Li
Recently, long non-coding RNAs (lncRNAs) have emerged as new gene regulators and prognostic markers in several cancers,including glioma. Here, we focused on lncRNA LUCAT1 on the progression of glioma. QRT-PCR was used to determine the expression of LUCAT1 and miR-375 in glioma tissues and cells. MTT and transwell invasion assays were performed to determine the function of LUCAT1 in glioma progression. Bioinformatics tool DIANA was used to predict the targets of LUCAT1. Pearson's correlation analysis was performed to explore the correlation between LUCAT1 and miR-375...
October 24, 2017: Oncology Research
https://www.readbyqxmd.com/read/29048683/long-non-coding-rna-par5-inhibits-the-proliferation-and-progression-of-glioma-through-interaction-with-ezh2
#11
Xiang-Peng Wang, Cai Shan, Xing-Li Deng, Li-Yan Li, Wei Ma
Emerging evidence suggests that long non-coding RNAs (lncRNAs) may be involved in modulating various aspects of tumor biology and serve as potential therapeutic targets as well as novel biomarkers in the treatment of glioma. The present study investigated the role of lncRNA, Prader Willi/Angelman region RNA 5 (PAR5; also known as PWAR5), in glioma and its clinical significance in glioma cases. The expression levels of PAR5 were determined in clinical samples and U87, U251 cells using real-time reverse transcription quantitative polymerase chain reaction (qRT-PCR) analysis...
September 21, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29048682/snhg15-affects-the-growth-of-glioma-microvascular-endothelial-cells-by-negatively-regulating-mir-153
#12
Yawen Ma, Yixue Xue, Xiaobai Liu, Chengbin Qu, Heng Cai, Ping Wang, Zhiqing Li, Zhen Li, Yunhui Liu
Malignant glioma, the most common intracranial primary tumor, is characterized by increased angiogenesis. Accumulating evidence has shown that long non-coding RNAs (lncRNAs) play an important role in a variety of biological behaviors of tumors. However, the role of lncRNAs in the regulation of glioma vascular endothelial cell function remains to be investigated. To simulate the glioma microenvironment, we applied glioma conditioned medium (GCM) to human cerebral microvascular endothelial cells (hCMECs). In the present study, the lncRNA SNHG15 was found to be highly expressed in glioma vascular endothelial cells...
September 21, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29042985/long-noncoding-rna-eosinophil-granule-ontogeny-transcript-inhibits-cell-proliferation-and-migration-and-promotes-cell-apoptosis-in-human-glioma
#13
You Wu, Shunli Liang, Bin Xu, Rongbo Zhang, Minzi Zhu, Weiying Zhou, Shuijing Zhang, Jinhui Guo, Linsheng Xu, Hongye Zhu
Glioma is the most common primary brain tumor and represents one of the most aggressive and lethal types of human cancer. Recent advances have implicated long noncoding RNAs (lncRNAs) as crucial mediators of cancer development and progression. The present study aimed to investigate the role of a newly-discovered lncRNA, termed eosinophil granule ontogeny transcript (EGOT), in the aggressive abilities of cells in human glioma. It was initially found that the relative transcription level of EGOT in glioma cancerous tissues was significantly lower than that in adjacent non-cancerous tissues...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29029454/long-noncoding-rna-ab073614-promotes-the-malignance-of-glioma-by-activating-wnt-%C3%AE-catenin-signaling-through-downregulating-sox7
#14
Yuqian Li, Gang Zhu, Wen Zeng, Jiancai Wang, Zhihong Li, Bao Wang, Bo Tian, Dan Lu, Xingye Zhang, Guodong Gao, Lihong Li
Long noncoding RNA (lncRNA) AB073614 has recently shown to be aberrantly increased and identified as a poor prognostic biomarker in human glioma. However, the potential mechanisms remain unknown. This study demonstrated that AB073614 expression was significantly upregulated in both glioma tissues and cell lines, and glioma patients with high AB073614 expression had lower overall survival rates. Importantly, silencing AB073614 expression remarkably inhibited U251 cell proliferation, migration, and invasion in vitro, as well as suppressed tumor formation in vivo...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29027534/long-non-coding-rna-meg3-promotes-the-proliferation-of-glioma-cells-through-targeting-wnt-%C3%AE-catenin-signal-pathway
#15
X Gong, M Huang
Glioma has been identified as one of the most aggressive primary tumors. Long non-coding RNAs (lncRNAs), with length larger than 200 bp, have drawn increasing attention to their abnormal expression and regulation function in carcinogenesis. However, the role of lncRNAs in glioma remains largely unknown. Maternally expressed gene 3 (MEG3), also known as gene-trap locus 2 (GTL2), is an imprinted gene, and is encoded by the MEG3 transcript of the DLK1/MEG3 locus on human chromosome, or Meg3 on mouse chromosome...
September 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/29022892/the-lncrna-hulc-functions-as-an-oncogene-by-targeting-atg7-and-itgb1-in-epithelial-ovarian-carcinoma
#16
Shuo Chen, Dan-Dan Wu, Xiu-Bo Sang, Li-Li Wang, Zhi-Hong Zong, Kai-Xuan Sun, Bo-Liang Liu, Yang Zhao
Highly upregulated in liver cancer (HULC) is a long noncoding RNA (lncRNA), which has recently been identified as a key regulator in the progression of hepatocellular carcinoma, gliomas and gastric cancer. However, its role in epithelial ovarian carcinoma (EOC) remains unknown. In this study, HULC expression was examined in EOC, borderline and benign ovarian tumors, and normal ovarian tissues by RT-PCR. Ovarian cancer cell phenotypes, as well as autophagy-associated proteins were examined after HULC overexpression or downregulation by plasmid or small interfering RNA (siRNA) transfection, respectively...
October 12, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28978068/analysis-of-long-non-coding-rna-expression-profiles-identifies-novel-lncrna-biomarkers-in-the-tumorigenesis-and-malignant-progression-of-gliomas
#17
Gang Chen, Yanfei Cao, Lina Zhang, Hongxing Ma, Chao Shen, Jiang Zhao
Long non-coding RNAs have been shown to be associated with cancer development and progression, demonstrating potential applications as novel diagnostic or prognostic molecular markers in clinical management and treatment. However, the functional significance of lncRNAs in the development and malignant progression of gliomas is still unclear and needed to be further explored. we first obtained genome-wide lncRNA expression profiles in a large cohort of patients with gliomas from the Gene Expression Omnibus database using microarray probes repurposing method and investigated the lncRNA expression patterns during the tumorigenesis and malignant progression of gliomas...
September 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28970140/microrna-675-promotes-glioma-cell-proliferation-and-motility-by-negatively-regulating-retinoblastoma-1
#18
Yungui Zheng, Xiaowen Lu, Liepeng Xu, Zhe Chen, Qinxi Li, Jun Yuan
Previous studies indicated that microRNA(miR)-675 and its precursor lncRNA H19 were both overexpressed in glioma tissues, and H19 might play an oncogenic role. To investigate the involvement of miR-675 in gliomas and its underlying mechanisms, we here collected candidate target genes of miR-675-5p from miRTarBase (http://mirtarbase.mbc.nctu.edu.tw/, Release 6.0), which contains the experimentally validated microRNA-target interactions. Then, regulatory effects of miR-675 on its target genes were validated using clinical samples and glioma cell lines...
September 29, 2017: Human Pathology
https://www.readbyqxmd.com/read/28959170/expression-of-loc285758-a-potential-long-non-coding-biomarker-is-methylation-dependent-and-correlates-with-glioma-malignancy-grade
#19
Alenka Matjasic, Mara Popovic, Bostjan Matos, Damjan Glavac
BACKGROUND: Identifying the early genetic drivers can help diagnose glioma tumours in their early stages, before becoming malignant. However, there is emerging evidence that disturbance of epigenetic mechanisms also contributes to cell's malignant transformation and cancer progression. Long non-coding RNAs are one of key epigenetic modulators of signalling pathways, since gene expression regulation is one of their canonical mechanisms. The aim of our study was to search new gliomagenesis-specific candidate lncRNAs involved in epigenetic regulation...
September 2017: Radiology and Oncology
https://www.readbyqxmd.com/read/28946213/regulation-of-hoxa11-as-mir-214-3p-ezh2-axis-on-the-growth-migration-and-invasion-of-glioma-cells
#20
Chenyang Xu, Tao He, Zhenjiang Li, Honglin Liu, Bingqian Ding
BACKGROUND: Glioma is one of the most common and aggressive malignant tumors in central nervous system. Recently, long non-coding RNA (lncRNA) HOXA11-AS has been reported to be an oncogenic gene in multiple cancers. However, the molecular mechanisms of HOXA11-AS involved in cancer progression of human glioma remain unknown. MATERIALS AND METHODS: The expression levels of HOXA11-AS in 45 paired primary glioma tissues and cell lines were examined by quantitative real-time PCR, and the correlation between HOXA11-AS expression and clinicopathologic characteristics of patients with glioma were analyzed...
November 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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