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glioma and lncRNA

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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
#1
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
#2
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...
October 13, 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
#3
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
#4
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
#5
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
#6
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
#7
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...
September 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28922548/lncrna-plac2-down-regulates-rpl36-expression-and-blocks-cell-cycle-progression-in-glioma-through-a-mechanism-involving-stat1
#8
Yan-Wei Hu, Chun-Min Kang, Jing-Jing Zhao, Ying Nie, Lei Zheng, Hai-Xia Li, Xin Li, Qian Wang, Yu-Rong Qiu
Current glioma therapies allow in situ delivery of cytotoxic drugs to the tumour; however, gliomas show early recurrence due to their highly proliferative character. Long non-coding (lnc)RNAs play critical roles in tumorigenesis by controlling cell proliferation and cycling. However, the mechanism of action of lncRNAs in glioma development remains unclear. Here, we report that the lncRNA PLAC2 induces cell cycle arrest by targeting ribosomal protein (RP)L36 in glioma. RPL36 promoted cell proliferation and G1/S cell cycle progression...
September 18, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28886531/long-non-coding-rna-hottip-promotes-hypoxia-induced-epithelial-mesenchymal-transition-of-malignant-glioma-by-regulating-the-mir-101-zeb1-axis
#9
Shanyi Zhang, Weiwei Wang, Guoxin Liu, Shule Xie, Qunxing Li, Yingru Li, Zhaoyu Lin
Hypoxia is a universal characteristic of solid tumor and involving cancer metastasis via epithelial-mesenchymal transition (EMT). Long non-coding RNAs (lncRNAs) are known to regulate carcinogenesis and metastasis of various cancers. The aim of this study was to identify the function role of lncRNAs in the hypoxia-induced EMT of malignant glioma. We used U87 and U251 cell lines were treated under hypoxia to induce EMT, then lncRNA microarray analyse was performed between U87-hypoxia and parental cell line. The relative expression of lncRNA and HIF-1α were detected by qRT-PCR between glioma tissues without metastasis and that with metastasis...
September 5, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28881797/upregulation-of-long-noncoding-rna-hoxa-as3-promotes-tumor-progression-and-predicts-poor-prognosis-in-glioma
#10
Fan Wu, Chuanbao Zhang, Jinquan Cai, Fan Yang, Tingyu Liang, Xiaoyan Yan, Haoyuan Wang, Wen Wang, Jing Chen, Tao Jiang
Long noncoding RNAs (lncRNAs) have recently emerged as new potentially promising therapeutic targets in many cancers. However, their prognostic value and biological functions associated with glioma remain to be elucidated. Here, High-throughput RNAseq was performed to detect the expression profiles of lncRNAs in 325 human glioma tissues. It was shown that a novel lncRNA HOXA-AS3 was one of the most significantly upregulated lncRNAs in glioma tissues. Quantitative PCR further verified the increased expression of HOXA-AS3 in patient samples and glioma cell lines...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28857242/down-regulation-of-the-long-noncoding-rna-hox-transcript-antisense-intergenic-rna-inhibits-the-occurrence-and-progression-of-glioma
#11
Bin Yang, Zhen-Yu Wei, Bang-Qing Wang, Hua-Chao Yang, Jun-Yi Wang, Xing-Yao Bu
This study aims to explore the role of long noncoding RNA (lncRNA)-HOX transcript antisense intergenic RNA (HOTAIR) in the occurrence and progression of glioma. Fresh glioma and normal brain tissues were classified into a glioma group (n = 67) and a normal group (n = 64) respectively. U87 cells were assigned into the blank, sh-NC and sh-HOTAIR groups. Quantitative real-time polymerase chain reaction (qRT-PCR) was utilized to determine HOTAIR expression. Cell proliferation, cell cycle and cell apoptosis rates were detected by cell counting kit-8 (CCK-8) and flow cytometry (FCM)...
August 31, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28832185/long-noncoding-rna-hoxa11-as-functions-as-mirna-sponge-to-promote-the-glioma-tumorigenesis-through-targeting-mir-140-5p
#12
Yan Cui, Lei Yi, Ji-Zong Zhao, Yu-Gang Jiang
Long noncoding RNAs (lncRNAs) have been proved as important regulators in many diseases, including cancers. HOXA11 antisense RNA (HOXA11-AS) is a novel identified lncRNA associated with cancer progression. However, the role of HOXA11-AS in glioma remains poorly understood and needs to be elucidated. The purpose of this study is to investigate the role and regulating mechanism of HOXA11-AS on gliomagenesis. Expression of HOXA11-AS was significantly upregulated in glioma tissue and cell lines compared with the adjacent normal tissue and cells...
August 23, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28831025/lncrna-xist-interacts-with-mir-29c-to-modulate-the-chemoresistance-of-glioma-cell-to-tmz-through-dna-mismatch-repair-pathway
#13
Peng Du, Haiting Zhao, Renjun Peng, Qing Liu, Jian Yuan, Gang Peng, Yiwei Liao
Temozolomide (TMZ) is the most commonly used alkylating agent in glioma chemotherapy. However, growing resistance to TMZ remains a major challenge for clinicians. Recent evidence emphasizes the key regulatory roles of non-coding RNAs (lncRNAs and miRNAs) in tumor biology, including the chemoresistance of cancers. However, little is known about the role and regulation mechanisms of lncRNA cancer X-inactive specific transcripts (XIST) in glioma tumorigenesis and chemotherapy resistance. In the present study, higher XIST expression was observed in glioma tissues and cell lines, which was related to poorer clinicopathologic features and shorter survival time...
October 31, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28791407/long-non-coding-rna-meg3-inhibits-cell-growth-of-gliomas-by-targeting-mir-93-and-inactivating-pi3k-akt-pathway
#14
Ling Zhang, Xin Liang, Yuxiong Li
Gliomas are the most common cancers in the brain, accompanied with high morbility, occurrence, disability and mortality. Long non-coding RNAs (lncRNAs) have been proposed as promoter or inhibitor in many cancer processes. Previous findings have indicated that lncRNA-maternally expressed gene 3 (MEG3) is involved in tumorigenesis of several cancers, including glioma. However, the underlying mechanism of MEG3 in glioma remains elusive. In our study, MEG3 was found downregulated in glioma tissues compared with normal brain tissues...
August 3, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28744130/long-noncoding-rna-casc2-predicts-the-prognosis-of-glioma-patients-and-functions-as-a-suppressor-for-gliomas-by-suppressing-wnt-%C3%AE-catenin-signaling-pathway
#15
Ronglin Wang, Yuqian Li, Gang Zhu, Bo Tian, Wen Zeng, Yang Yang, Zhihong Li
BACKGROUND: Previous studies have demonstrated that long noncoding RNA cancer susceptibility candidate 2 (lncRNA CASC2) is frequently downregulated in several types of tumors and functions as a tumor-suppressive factor. However, the clinical significance and function of CASC2 in human glioma remain largely unknown. The purpose of this study was to identify the clinical values of CASC2, as well as investigate the potential molecular mechanisms in glioma. METHODS: This retrospective study first analyzed the expression levels of CASC2 using quantitative real-time polymerase chain reaction...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28738539/lncrna-ab073614-regulates-proliferation-and-metastasis-of-colorectal-cancer-cells-via-the-pi3k-akt-signaling-pathway
#16
Yanan Wang, Haoyu Kuang, Jinfang Xue, Liya Liao, Fang Yin, Xiaojun Zhou
The expression profiles of long noncoding RNAs (lncRNAs) in colorectal cancer (CRC) have remained unclear. LncRNA AB073614 is known to be upregulated in ovarian cancer and glioma tissues, and is associated with the occurrence and progression of those cancers. In the present study, we investigated the lncRNA AB073614 gene expression patterns in CRC cell lines and tissue samples from CRC patients, and then analyzed them for possible associations with various clinicopathological characteristics. Furthermore, the roles played by lncRNA AB073614 in CRC cell proliferation, apoptosis, cell cycle progression, migration, and invasion were examined in vitro by using gene knockdown and overexpression techniques...
September 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28733519/long-noncoding-rna-ab073614-promotes-the-malignance-of-glioma-by-activating-wnt-%C3%AE-catenin-signaling-through-downregulating-sox7
#17
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...
July 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28714520/genomic-profiling-of-long-non-coding-rna-and-mrna-expression-associated-with-acquired-temozolomide-resistance-in-glioblastoma-cells
#18
Huijun Zeng, Ningbo Xu, Yanting Liu, Boyang Liu, Zhao Yang, Zhao Fu, Changlin Lian, Hongbo Guo
Temozolomide (TMZ) is an alkylating chemotherapeutic agent widely used in anti-glioma treatment. However, acquired TMZ resistance represents a major clinical challenge that leads to tumor relapse or progress. This study investigated the genomic profiles including long non-coding RNA (lncRNA) and mRNA expression associated with acquired TMZ resistance in glioblastoma (GBM) cells in vitro. The TMZ-resistant (TR) of GBM sub-cell lines were established through repetitive exposure to increasing TMZ concentrations in vitro...
August 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28711944/analysis-of-long-non-coding-rna-expression-profiles-identifies-novel-lncrna-biomarkers-in-the-tumorigenesis-and-malignant-progression-of-gliomas
#19
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...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28701916/the-role-of-hotair-mir-148b-3p-usf1-on-regulating-the-permeability-of-btb
#20
Libo Sa, Yan Li, Lini Zhao, Yunhui Liu, Ping Wang, Libo Liu, Zhen Li, Jun Ma, Heng Cai, Yixue Xue
Homeobox transcript antisense intergenic RNA (HOTAIR), as a long non-coding RNA (lncRNA), has been considered to play critical roles in the biological properties of various tumors. The purposes of this study were to investigate the role and possible molecular mechanisms of HOTAIR in regulating the permeability of blood tumor barrier (BTB) in vitro. Our present study elucidated that the expressions of HOTAIR and upstream stimulatory factor 1 (USF1) was up-regulated, but miR-148b-3p was down-regulated in glioma microvascular endothelial cells (GECs)...
2017: Frontiers in Molecular Neuroscience
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