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Induced of RBM24 expression effect on nasopharyngeal carcinoma cells

ABSTRACT: RNA-binding proteins (RBPs) are key components in the determination of miRNA function, as they control different stages of miRNA biogenesis and their localization, degradation and activity. To further investigate the underlying mechanisms of RBM24 in nasopharyngeal carcinoma (NPC) carcinogenesis, we compared the miRNA expression profiles in RBM24 induced and control cells by using human miRNA microarray. Microarray analysis identified 11 commonly upregulated and 12 commonly downregulated miRNAs in RBM24 induced cells. Among the 23 miRNAs, miR-25 ranked highest of all the commonly upregulated genes sorted in ascending order according to fold change values. RBM24 expression was controlled by tetracycline-off system in NPC cells.

ORGANISM(S): Homo sapiens

PROVIDER: GSE66878 | GEO | 2016/03/13

SECONDARY ACCESSION(S): PRJNA278156

REPOSITORIES: GEO

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Induced of RBM24 expression effect on nasopharyngeal carcinoma cells

Project description:RNA-binding proteins (RBPs) are key components in the determination of miRNA function, as they control different stages of miRNA biogenesis and their localization, degradation and activity. To further investigate the underlying mechanisms of RBM24 in nasopharyngeal carcinoma (NPC) carcinogenesis, we compared the miRNA expression profiles in RBM24 induced and control cells by using human miRNA microarray. Microarray analysis identified 11 commonly upregulated and 12 commonly downregulated miRNAs in RBM24 induced cells. Among the 23 miRNAs, miR-25 ranked highest of all the commonly upregulated genes sorted in ascending order according to fold change values. RBM24 expression was controlled by tetracycline-off system in NPC cells. microRNA profiling of RBM24 expression induced cells vs. repressed cells: The expression of RBM24 in HONE-1, 5-8F, and CNE-2 cells was induced by removing doxycycline or repressed by adding doxycycline.

2016-03-13 | E-GEOD-66878 | biostudies-arrayexpress

Genome-wide expressing profiling of nasopharyngeal carcinoma primary tumors versus non-cancerous nasopharyngeal tissues.

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Genome-wide expressing profiling of nasopharyngeal carcinoma primary tumors versus non-cancerous nasopharyngeal tissues.

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2014-01-05 | E-GEOD-53819 | biostudies-arrayexpress

AAV9 mediated overexpression of Rbm24 in wildtype C57/Bl6 mice

Project description:The RNA-binding protein Rbm24 has recently been identified as a pivotal splicing factor in the developing heart. Loss of Rbm24 in mice disrupts cardiac development by governing a large number of muscle- specific splicing events. Since Rbm24 knockout mice are embryonically lethal, the role of Rbm24 in the adult heart remained unexplored. Here, we used adeno-associated viruses (AAV9) to investigate the effect of increased Rbm24 levels in adult mouse heart. Using high-resolution microarrays, we found 893 differentially expressed genes and 1102 differential splicing events in 714 genes in hearts overexpressing Rbm24. We found splicing differences in cardiac genes, such as PDZ and Lim domain 5, Phospholamban, and Titin, but did not find splicing differences in previously identified embryonic splicing targets of Rbm24, such as skNAC, αNAC, and Coro6. Gene ontology enrichment analysis demonstrated increased expression of extracellular matrix (ECM)-related and immune response genes. Moreover, we found increased expression of Tgfβ-signaling genes, suggesting enhanced Tgfβ-signaling in these hearts. Ultimately, this increased activation of cardiac fibroblasts, as evidenced by robust expression of Periostin in the heart, and extensive cardiac fibrosis. These results indicate that Rbm24 may function as a regulator of cardiac fibrosis, potentially through the regulation of TgfβR1 and TgfβR2 expression.

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Identification of novel Epstein-Barr Virus miRNA genes from Nasopharyngeal Carcinomas

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Two miRNA signatures for identifying nasopharyngeal carcinoma from head-neck tumors and the normal

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2019-06-16 | GSE118613 | GEO

Identification of novel Epstein-Barr Virus miRNA genes from Nasopharyngeal Carcinomas

2009-02-07 | GSE14738 | GEO

Serum miRNA expression profile of nasopharyngeal carcinoma with different radiosensitivity

Project description:Nasopharyngeal carcinoma is a squamous cell carcinoma arising from the nasopharynx epithelium. So far, there have been no effective biomarkers to predict the radiosensitivity of NPC. Based on miRNA profile screened out from NPC patients with different radiosensitivity, this study was conducted to explore the correlation between serum miRNAs and radiotherapy response in NPC, and to identify biomarkers for predicting the radiosensitivity of NPC.

2020-03-30 | GSE139164 | GEO

microRNA expression profiling of human nasopharyngeal Carcinoma tissues and Chronic Nasopharyngitis specimens

Project description:Epstein-Barr virus (EBV) has been etiologically linked to human malignancies including Nasopharyngeal Carcinoma (NPC). Although EBV-encoded miRNAs have been shown to contribute to viral latency, host cell survival and immune evasion, their direct impact on cancer progression in their human host remains unclear. In the current study, based on a miRNA expression profiling analysis of a larger number of clinical specimens using a miRNA array platform containing human, EBV and other species miRNA probes., we found that some EBV-miR-BARTs were highly expressed in NPC. Accordingly, further exploration of the potential roles and regulatory mechanisms of some important EBV-miR-BARTs in NPC progression was carried out. We applied a miRNA expression profiling analysis in 20 poor or undifferentiated NPC (Nasopharyngeal Carcinoma) matched with 20 benign chronic nasopharyngitis (CNP) specimens using a miRNA array platform containing human, EBV and other species miRNA probes. Two-group experiment, NPC vs CNP. Biological repelicates: 20 NPCs, 20 CNPs. One replicate per array.

2015-06-30 | E-GEOD-43039 | biostudies-arrayexpress

Comprehensive microRNA profiling of Nasopharyngeal Carinoma Specimens

Project description:Publication: Identification of a microRNA signature associated with risk of distant metastasis in nasopharyngeal carcinoma Purpose Despite significant improvement in locoregional control in the contemporary era of nasopharyngeal carcinoma (NPC) treatment, patients still suffer from a significant risk of distant metastasis (DM). Identifying those patients at risk of DM would aid in personalized treatment in the future. MicroRNAs (miRNAs) play many important roles in human cancers; hence, we proceeded to address the primary hypothesis that there is a miRNA expression signature capable of predicting DM for NPC patients. Methods and results The expression of 734 miRNAs was measured in 125 (Training) and 121 (Validation) clinically annotated NPC diagnostic biopsy samples. A 4-miRNA expression signature associated with risk of developing DM was identified by fitting a penalized Cox Proportion Hazard regression model to the Training data set (HR 8.25; p < 0.001), and subsequently validated in an independent Validation set (HR 3.2; p = 0.01). Pathway enrichment analysis indicated that the targets of miRNAs associated with DM appear to be converging on cell-cycle pathways. Conclusions This 4-miRNA signature adds to the prognostic value of the current “gold standard” of TNM staging. In-depth interrogation of these 4-miRNAs will provide important biological insights that could facilitate the discovery and development of novel molecularly targeted therapies to improve outcome for future NPC patients.

2015-07-17 | GSE70970 | GEO

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