RBFOX1 overexpression in the human glioblastoma cell line A172
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ABSTRACT:
PROVIDER: PRJNA832414 | ENA |
REPOSITORIES: ENA
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Project description:The goal of this study was to investigate the regulatory events underlying post-transcriptional changes in gene expression, and more specifically in mRNA stability, in cancer. We observed that the stability of RBFOX1 targets was decreased in glioblastoma and, given that RBFOX1 is known to stabilize its targets mRNAs, we hypothesized that RBFOX1 down-regulation is responsible at least in part for alterations in the glioblastoma transcriptome. We overexpressed RBFOX1 in the A172 human glioblastoma cell line and performed RNA-sequencing on extracted RNA. We computed differential gene expression in the cell line overexpressing RBFOX1, compared to the control samples. We confirmed that RBFOX1 overexpression leads to an upregulation of the RBFOX1 regulon, including the majority of RBFOX1 targets that are destabilized in tumors. The results suggest that RBFOX1 downregulation in glioblastoma leads to the destabilization of its targets, which can be partially rescused through overexpression of RBFOX1.
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Project description:This study identifies the genes differentially expressed upon MED12 knockdown in A172 glioblastoma cell line. Clariom_S_Human Array was used to assess mRNA expression profile in response to MED12 Knockdown in A172 cells.
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Project description:DNase-seq on cell line A172 (53 year old male human brain, glioblastoma) For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODE_Data_Use_Policy_for_External_Users_03-07-14.pdf
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Project description:miR-196a-5p is robustly upregulated under hypoxia in GBM cell lines and is highly expressed in GBM tumour samples. This study identifies the genes differentially expressed upon miR-196a-5p inhibition in A172 glioblastoma cell line under hypoxia (0.2% O2). GeneChip PrimeView Human Gene Expression Array was used to assess mRNA expression profile in response to miR-196a-5p inhibition in A172 cell line under hypoxia (0.2% O2).
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Project description:The libraries contained in this experiment come from independent growths of cell line A172, a glioblastoma cell line derived from a 53 year old male. They are stranded PE101 Illumina Hi-Seq RAMPAGE libraries from rRNA-depleted Total RNA > 200 nucleotides in size. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODE_Data_Use_Policy_for_External_Users_03-07-14.pdf
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Project description:A172 cell lines were stable transfected with C19ORF63 (Human hematopoietic peptide secreted-1 - HSS1). HSS1 is a truly novel protein defining a new class of secreted factors. A172 cell line overexpressing HSS1 greatly reduced their proliferation rate compared to mock-transfected cells. Microarray analysis was used to detail gene expression underlying the anti-proliferative and anti-tumorigenic effect of HSS1 in A172 cells. Exponentially growing A172 cells at growth curve day 4 were harvested for total RNA extraction and hybridization on Affimetrix microarrays. Four groups of samples were evaluated in biological triplicates: A172 wild-type, A172 -pcDNA3.1 mock-transfected, A172-pcDNA-HSS1 clone#7 and A172-pcDNA-HSS1 clone#8. Cells were stable transfected with pcDNA3.1 empty vector or hHSS1. hHSS1-expressing cells and control cells were at confluence 40-80% when harvested. Trypan blue analysis of the number of viable cells showed a significant anti-proliferative effect in A172 cells expressing hHSS1 as compared to the control cells.
2014-12-22 | E-GEOD-61778 | biostudies-arrayexpress
Project description:PD-L1 (CD274) overexpression effect on glioblastoma cell line U251
| PRJNA420727 | ENA
Project description:A172 cell lines were stable transfected with C19ORF63 (Human hematopoietic peptide secreted-1 - HSS1). HSS1 is a truly novel protein defining a new class of secreted factors. A172 cell line overexpressing HSS1 greatly reduced their proliferation rate compared to mock-transfected cells. Microarray analysis was used to detail gene expression underlying the anti-proliferative and anti-tumorigenic effect of HSS1 in A172 cells.
2014-12-22 | GSE61778 | GEO
Project description:Dysregulation of the brain-enriched RNA binding protein Rbfox1 has been linked to neurologic diseases such as epilepsy and autism spectrum disorders. However, it remains unexplored how distinct neuronal populations might contribute to neurologic dysfunction resulting from Rbfox1 loss. To examine these issues we profiled gene expression specifically in the hippocampus of wildtype and Rbfox1-/- mice. We identified transcripts whose expression was strongly Rbfox1-dependent and exhibited significant Rbfox1 binding in their 3’UTRs. One prominent target, Vamp1, was found to be specifically expressed in GABAergic interneurons. Both Vamp1 knockdown and Rbfox1 loss led to decreased synaptic transmission, and altered E/I balance in the Rbfox1-/- hippocampus, indicating that Vamp1 loss is a major component of the Rbfox1-/- physiological phenotype. The cytoplasmic isoform of Rbfox1 was sufficient to rescue Vamp1 expression in Rbfox1-/- neurons. We show that Rbfox1 binding in the Vamp1 3’UTR promotes its expression in part by antagonizing the brain-enriched microRNA-9. These results demonstrate that inhibitory neurons maintain specialized synaptic vesicle release machinery containing Vamp1 that is critically regulated by Rbfox1.
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