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https://www.readbyqxmd.com/read/28337377/the-e3-ubiquitin-ligase-chip-mir-92b-pten-regulatory-network-contributes-to-tumorigenesis-of-glioblastoma
#1
Tao Xu, Hongxiang Wang, Mei Jiang, Yong Yan, Weiqing Li, Hanchong Xu, Qilin Huang, Yicheng Lu, Juxiang Chen
Glioblastoma (GBM) is the most frequent, aggressive and fatal tumor in the central nervous system, while PTEN signaling is frequently deregulated in human GBM. We previously reported the up-regulation of the carboxyl terminal of Hsp70-interacting protein (CHIP) in GBM, however, the causal link between its dysregulation and tumorigenesis has not been established. Using miRNA microarrays and quantitative RT-PCR (qRT-PCR), we found activation of CHIP leads to increased transcription of miR-92b. Further studies in T98G and LN229 cells showed overexpression of miR-92b elicited reduction of PTEN and efficiently rescued glioma development in CHIP knock-down cells...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28325280/mir-134-a-human-cancer-suppressor
#2
REVIEW
Jing-Yu Pan, Feng Zhang, Cheng-Cao Sun, Shu-Jun Li, Guang Li, Feng-Yun Gong, Tao Bo, Jing He, Rui-Xi Hua, Wei-Dong Hu, Zhan-Peng Yuan, Xin Wang, Qi-Qiang He, De-Jia Li
MicroRNAs (miRNAs) are small noncoding RNAs approximately 20-25 nt in length, which play crucial roles through directly binding to corresponding 3' UTR of targeted mRNAs. It has been reported that miRNAs are involved in numerous of diseases, including cancers. Recently, miR-134 has been identified to dysregulate in handles of human cancers, such as lung cancer, glioma, breast cancer, colorectal cancer, and so on. Increasing evidence indicates that miR-134 is essential for human carcinoma and participates in tumor cell proliferation, apoptosis, invasion and metastasis, drug resistance, as well as cancer diagnosis, treatment, and prognosis...
March 17, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28317871/insights-into-molecular-therapy-of-glioma-current-challenges-and-next-generation-blueprint
#3
REVIEW
Y Rajesh, Ipsita Pal, Payel Banik, Sandipan Chakraborty, Sachin A Borkar, Goutam Dey, Ahona Mukherjee, Mahitosh Mandal
Glioma accounts for the majority of human brain tumors. With prevailing treatment regimens, the patients have poor survival rates. In spite of current development in mainstream glioma therapy, a cure for glioma appears to be out of reach. The infiltrative nature of glioma and acquired resistance substancially restrict the therapeutic options. Better elucidation of the complicated pathobiology of glioma and proteogenomic characterization might eventually open novel avenues for the design of more sophisticated and effective combination regimens...
March 20, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28303930/hcmv-encoded-mir-ul112-3p-promotes-glioblastoma-progression-via-tumour-suppressor-candidate-3
#4
Qing Liang, Kejia Wang, Bin Wang, Qiliang Cai
Glioblastoma (GBM) is the most prevalent and lethal type of primary malignant brain tumour. Recent studies suggest that the discovery of human cytomegalovirus (HCMV)-encoded microRNAs (miRNAs) might play a role in the pathogenesis of diseases, including GBM. In this study, we aimed to analyse the expression and function of HCMV-encoded miRNAs in GBM. We found that miR-UL112-3p expression was significantly elevated in GBM, and its expression levels were highly associated with glioma size, differentiation, WHO stage and the overall and disease-free survival of patients...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28276314/long-non-coding-rna-pvt1-facilitates-cervical-cancer-progression-via-negative-regulating-of-mir-424
#5
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/28273854/overexpression-of-transforming-acidic-coiled-coil%C3%A2-containing-protein-3-reflects-malignant-characteristics-and-poor-prognosis-of-glioma
#6
Ying Sun, Yu Tian, Guang-Zhi Wang, Shi-Hong Zhao, Bo Han, Yong-Li Li, Chuan-Lu Jiang
Gliomas are malignant primary brain tumors with poor prognosis. Recently, research was indicative of a tight connection between tumor malignancy and genetic alterations. Here, we propose an oncogenic implication of transforming acidic coiled-coil-containing protein 3 (TACC3) in gliomas. By comprehensively analyzing the Chinese glioma genome atlas (CGGA) and publicly available data, we demonstrated that TACC3 were overexpressed along with glioma grade and served as an independent negative prognostic biomarker for glioma patients...
March 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28256193/overexpression-of-microrna-216a-suppresses-proliferation-migration-and-invasion-of-glioma-cells-by-targeting-leucine-rich-repeat-containing-g-protein-coupled-receptor-5
#7
Junfeng Zhang, Kun Xu, Lili Shi, Li Zhang, Zhaohua Zhao, Hao Xu, Fei Liang, Hongbo Li, Yan Zhao, Xi Xu, Yingfang Tian
Increasing studies have suggested that microRNAs (miRNAs) are involved in the development of gliomas. MicroRNA-216a hasbeen reported as a tumor-associated miRNA in many types of cancer, either as an oncogene or a tumor suppressor. However, little is known about the function of miR-216a in gliomas. The present study was designed to explore the potential role of miR-216a in gliomas. We found that miR-216a was significantly decreased in glioma tissues and cell lines. Overexpression of miR-216a significantly suppressed the proliferation, migration and invasion of glioma cells...
March 2, 2017: Oncology Research
https://www.readbyqxmd.com/read/28244850/mirna-214-inhibits-cellular-proliferation-and-migration-in-glioma-cells-targeting-caspase-1-involved-in-pyroptosis
#8
Zhenfeng Jiang, Lifen Yao, Hongge Ma, Panpan Xu, Zhiyan Li, Mian Guo, Jianhang Chen, Hongbo Bao, Shupei Qiao, Yufang Zhao, Jia Shen, Minwei Zhu, Carolyn Meyers, Guizhen Ma, Chuncheng Xie, Li Liu, Haiyang Wang, Wang Zhang, Qi Dong, Hong Shen, Zhiguo Lin
Pyroptosis, is a type of pro-inflammatory programmed cell death mediated by caspase-1 activity and occurs in several types of eukaryotic tumor cells, including gliomas. MicroRNAs (miRNAs), small endogenous non-coding RNAs, have demonstrated as advantageous in glioma therapy. However, whether miRNAs regulate pyroptosis in glioma remains unknown. The current study found that caspase-1 expression was substantially increased in both glioma tissues as well as the glioma cell lines, U87 and T98G, while miR-214 expression was significantly downregulated...
December 15, 2016: Oncology Research
https://www.readbyqxmd.com/read/28187439/long-non-coding-rna-in-glioma-signaling-pathways
#9
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/28184932/microrna-520c-inhibits-glioma-cell-migration-and-invasion-by-the-suppression-of-transforming-growth-factor-%C3%AE-receptor-type%C3%A2-2
#10
Shengli Hu, Huibin Chen, Yuqiang Zhang, Chaojia Wang, Kaijun Liu, Hui Wang, Jie Luo
Dysregulation of microRNAs (miRNAs) is actively involved in the development and progression of glioma. miR-520c was previously found to inhibit glioblastoma cell migration. However, the clinical significance of miR-520c and its biological function in glioma remain largely unknown. In the present study, we found that miR-520c expression in glioma tissues was significantly decreased compared to adjacent non‑cancerous tissues. The low level of miR-520c was prominently correlated with advanced World Health Organization (WHO) grade and decreased overall survival of glioma patients...
March 2017: Oncology Reports
https://www.readbyqxmd.com/read/28121353/mir-508-5p-is-a-prognostic-marker-and-inhibits-cell-proliferation-and-migration-in-glioma
#11
Y-H Liu, B Li, F-G Meng, L Qiu
OBJECTIVE: Increasing evidence has informed that dysregulation of microRNAs (miRNAs) may contribute to carcinogenesis in human. The aim of the present study was to determine the role of miR-508-5p in glioma. PATIENTS AND METHODS: Quantitative real-time PCR was performed to detect the expression levels of miR-508-5p in glioma and normal control tissues. In vitro, migration assays and a wound-healing assay were performed to determine the effects of miR-508-5p. Associations between miR-508-5p expressions and various clinicopathological characteristics were analyzed...
January 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28109076/microrna-409-3p-represses-glioma-cell-invasion-and-proliferation-by-targeting-high-mobility-group-nucleosome-binding-domain-5
#12
Yidong Cao, Liang Zhang, Minghao Wei, Xue Jiang, Dong Jia
Emerging evidence has suggested that aberrantly expressed microRNAs (miRNAs) are associated with glioma development andprogression. The aberrant expression of miR-409-3p has been reported in several human cancers. However, little is known about the function of miR-409-3p in gliomas. The aim of this study was to investigate the specific role and molecular mechanism of miR-409-3p in gliomas. In the present study, we found that miR-409-3p was downregulated in glioma tissue and cell lines. Overexpression of miR-409-3p inhibited glioma cell invasion and proliferation, whereas suppression of miR-409-3p promoted glioma cell invasion and proliferation...
January 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28107197/mtdh-promotes-glioma-invasion-through-regulating-mir-130b-cernas
#13
Liping Tong, Ming Chu, Bingqing Yan, Weiyi Zhao, Shuang Liu, Wei Wei, Huihuang Lou, Shengkun Zhang, Shuai Ma, Juan Xu, Lanlan Wei
Cell invasion is crucial for high mortality and recurrence rate in glioma. Epithelial-mesenchymal transition (EMT) is an important step in cancer invasion. Metadherin (MTDH) contributes to EMT in several cancers, but the role and mechanism of MTDH in EMT-like process of glioma remain unknown. Here we demonstrate that MTDH was overexpressed in glioma tissues and cells and induced EMT-like change and invasion of glioma cells. Interestingly, MTDH could modulate the expression of a group of glioma-related miRNAs...
January 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28091987/expression-and-prognostic-value-of-micrornas-in-lower-grade-glioma-depends-on-idh1-2-status
#14
Wen Cheng, Xiufang Ren, Chuanbao Zhang, Sheng Han, Anhua Wu
Histological and genomic characteristics are widely used in glioma management and research. This study investigated their relationship to the expression and prognostic value of microRNAs (miRNAs) in lower-grade glioma (LGG). A total of 447 LGG samples with available clinical and genomic information from The Cancer Genome Atlas database were reviewed. Samples with isocitrate dehydrogenase (IDH) 1/2 mutations (n = 366) were randomly divided into training and validation sets to establish and confirm a four-miRNA-based risk classifier...
January 16, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28091986/shift-of-microrna-profile-upon-glioma-cell-migration-using-patient-derived-spheroids-and-serum-free-conditions
#15
Sune Munthe, Bo Halle, Henning B Boldt, Helle Christiansen, Steffen Schmidt, Vivek Kaimal, Jessica Xu, Sonya Zabludoff, Jan Mollenhauer, Frantz R Poulsen, Bjarne W Kristensen
Glioblastoma multiforme (GBM) is the most frequent malignant primary brain tumor. A major reason for the overall median survival being only 14.6 months is migrating tumor cells left behind after surgery. Another major reason is tumor cells having a so-called cancer stem cell phenotype being therefore resistant towards traditional chemo- and radiotherapy. A group of novel molecular targets are microRNAs (miRNAs). MiRNAs are small non-coding RNAs exerting post-transcriptional regulation of gene expression. The aim of this study was to identify differentially expressed miRNAs in migrating GBM cells using serum-free stem cell conditions...
January 13, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28079712/a-comprehensive-review-of-genomics-and-noncoding-rna-in-gliomas
#16
Ahmed Hassan, Jennifer Mosley, Sanjay Singh, Pascal Olivier Zinn
Glioblastoma (GBM) is the most malignant primary adult brain tumor. In spite of our greater understanding of the biology of GBMs, clinical outcome of GBM patients remains poor, as their median survival with best available treatment is 12 to 18 months. Recent efforts of The Cancer Genome Atlas (TCGA) have subgrouped patients into 4 molecular/transcriptional subgroups: proneural, neural, classical, and mesenchymal. Continuing efforts are underway to provide a comprehensive map of the heterogeneous makeup of GBM to include noncoding transcripts, genetic mutations, and their associations to clinical outcome...
February 2017: Topics in Magnetic Resonance Imaging: TMRI
https://www.readbyqxmd.com/read/28060761/identification-of-micrornas-associated-with-glioma-diagnosis-and-prognosis
#17
Xinyun Ye, Wenjin Wei, Zhengyu Zhang, Chunming He, Ruijin Yang, Jinshi Zhang, Zhiwu Wu, Qianliang Huang, Qiuhua Jiang
The sensitivity and specificity of microRNAs (miRNAs) for diagnosing glioma are controversial. We therefore performed a meta-analysis to systematically identify glioma-associated miRNAs. We initially screened five miRNA microarray datasets to evaluate the differential expression of miRNAs between glioma and normal tissues. We next compared the expression of the miRNAs in different organs and tissues to assess the sensitivity and specificity of the differentially expressed miRNAs in the diagnosis of glioma. Finally, pathway analysis was performed using GeneGO...
January 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28055966/dual-inhibition-of-pcdh9-expression-by-mir-215-5p-up-regulation-in-gliomas
#18
Chunlin Wang, Qi Chen, Shu Li, Shiting Li, Zhenyu Zhao, Hongliang Gao, Xiaoqiang Wang, Bin Li, Wenchuan Zhang, Yan Yuan, Linzhao Ming, Hua He, Bangbao Tao, Jun Zhong
The clinical prognosis of malignant gliomas is poor and PCDH9 down-regulation is strongly associated with its poor prognosis. But the mechanism of PCDH9 down-regulation is unknown. Abnormal miRNAs profiles regulate tumor phenotypes through inhibiting their target genes and miRNAs could inhibit target genes more efficiently by binding to both the promoter and 3'UTR of target genes. In this study, to search the dual inhibitory miRNAs which suppress PCDH9 expression in gliomas, we performed an integrative analysis of databases including miRDB, TargetScan, microPIR and miRCancer...
February 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28035070/elucidation-of-the-genetic-and-epigenetic-landscape-alterations-in-rna-binding-proteins-in-glioblastoma
#19
Shruti Bhargava, Vikas Patil, Kulandaivelu Mahalingam, Kumaravel Somasundaram
RNA binding proteins (RBPs) have been implicated in cancer development. An integrated bioinformatics analysis of RBPs (n = 1756) in various datasets (n = 11) revealed several genetic and epigenetically altered events among RBPs in glioblastoma (GBM). We identified 13 mutated and 472 differentially regulated RBPs in GBM samples. Mutations in AHNAK predicted poor prognosis. Copy number variation (CNV), DNA methylation and miRNA targeting contributed to RBP differential regulation. Two sets of differentially regulated RBPs that may be implicated in initial astrocytic transformation and glioma progression were identified...
December 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/27999452/microrna-regulation-of-endothelial-junction-proteins-and-clinical-consequence
#20
REVIEW
Yugang Zhuang, Hu Peng, Victoria Mastej, Weiguo Chen
Cellular junctions play a critical role in structural connection and signal communication between cells in various tissues. Although there are structural and functional varieties, cellular junctions include tight junctions, adherens junctions, focal adhesion junctions, and tissue specific junctions such as PECAM-1 junctions in endothelial cells (EC), desmosomes in epithelial cells, and hemidesmosomes in EC. Cellular junction dysfunction and deterioration are indicative of clinical diseases. MicroRNAs (miRNA) are ~20 nucleotide, noncoding RNAs that play an important role in posttranscriptional regulation for almost all genes...
2016: Mediators of Inflammation
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