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IRE1-dependent transcriptome remodelling upon ER stress in human glioma cells

ABSTRACT: We investigate the contribution of IRE1 signaling to the modulation of U87 glioma cells transcriptome upon various stresses. To this end, IRE1 control and IRE1 dominant negative expressing U87 glioma cells were subjected to environmental or chemical challenges and their transcriptome monitored using Affymetrix microarrays.

ORGANISM(S): Homo sapiens

PROVIDER: GSE27306 | GEO | 2011/12/31

SECONDARY ACCESSION(S): PRJNA137127

REPOSITORIES: GEO

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IRE1-dependent transcriptome remodelling upon ER stress in human glioma cells

Project description:We investigate the contribution of IRE1 signaling to the modulation of U87 glioma cells transcriptome upon various stresses. To this end, IRE1 control and IRE1 dominant negative expressing U87 glioma cells were subjected to environmental or chemical challenges and their transcriptome monitored using Affymetrix microarrays. Stress-induced transcriptome modulation in function of IRE1 proficiency/deficiency

2011-12-31 | E-GEOD-27306 | biostudies-arrayexpress

Gene profiling: U87 IRE1 dominant negative cells vs. U87ctrl cells in culture

2010-08-08 | GSE22385 | GEO

Gene profiling: U87 IRE1 dominant negative cells vs. U87ctrl cells in culture

Project description:Transcriptome analysis was performed from human U87 glioblastoma cell clones: U87 IRE1.NCK DN (U87dn, IRE1 dominant negative) and U87 control (U87ctrl, empty plasmid). Cells were grown in DMEM supplemented with 10% FBS and glutamine for 16 hours in culture prior mRNA isolation and analyses U87dn cells expressing a dominant negative transgene of IRE1alpha were compared to U87ctrl cells transfected with the corresponding empty plamid to identify genes associated to tumor invasion and angiogenesis.

2010-08-08 | E-GEOD-22385 | biostudies-arrayexpress

Dual IRE1 RNase functions dictate glioblastoma development

Project description:The transcriptome dataset has been used to validate on a GBM patient cohort (n=117) the IRE1-dependent gene expression signature identified in U87 cell line.

2018-01-09 | E-MTAB-6326 | biostudies-arrayexpress

Pharmacologic IRE1/XBP1s Activation Confers Targeted ER Proteostasis Reprogramming

Project description:Activation of the IRE1/XBP1s signaling arm of the unfolded protein response (UPR) is a promising strategy to correct defects in endoplasmic reticulum (ER) proteostasis implicated in diverse diseases. However, no pharmacologic activators of this pathway identified to date are suitable for ER proteostasis remodeling through selective activation of IRE1/XBP1s signaling. Here, we use high-throughput screening to identify non-toxic compounds that induce ER proteostasis remodeling through IRE1/XBP1s activation. We employ transcriptional profiling to stringently confirm that our prioritized compounds selectively activate IRE1/XBP1s signaling without activating other cellular stress-responsive signaling pathways. Furthermore, we demonstrate that our compounds improve ER proteostasis of destabilized variants of amyloid precursor protein (APP) through an IRE1-dependent mechanism and reduce APP-associated mitochondrial toxicity in cellular models. These results establish highly-selective IRE1 activating compounds that can be widely employed to define the functional importance of IRE1/XBP1s activity for ER proteostasis regulation in the context of health and disease.

2020-04-17 | GSE148802 | GEO

Expression data from U87 glioma cells and U87-2M1 glioma cells

Project description:An experimental lung metastasis assay was used to derive an invasive subline of U87 that is metastatic in mice. We used microarray analyses to find out over-represented gene ontologies that can explain the observed enhanced invasiveness of U87-2M1 cells. Early passage U87-2M1 cells and parental U87 glioma cells from ATCC were selected for RNA extraction and hybridization on microarray

2012-12-31 | E-GEOD-35169 | biostudies-arrayexpress

Discovery of Gene Expression Signature in the Overexpression of miR-145 in U87 glioma cell.

Project description:We have employed whole RNA microarray expression profiling as a discovery platform to identify genes regulated by overexpression of miR-145 in U87 glioma cell. Lentivirus containing miR-145 coding sequence was infected to U87 cell to make U87 overexpressing miR-145. We did genome microarray between U87 and U87 overexpressing miR-145.

2011-03-25 | GSE28121 | GEO

Expression data from transfection of SW1783 and U87 glioma cells with miR-376a* for 24 and 72 hours

Project description:This SuperSeries is composed of the following subset Series: GSE34454: Expression data from transfection of SW1783 glioma cells with microRNA-376a* for 24 hours GSE34455: Expression data from transfection of U87 glioma cells with miR-376a* for 24 hours GSE34456: Expression data from transfection of U87 glioma cells with miR-376a* for 72 hours Refer to individual Series

2012-05-31 | E-GEOD-34482 | biostudies-arrayexpress

Effect of TIC10/ONC201 on glioma cells

Project description:We performed microarray analysis in order to evaluate the effect of ONC201 on gene expression in glioma cells (U87).

2019-09-18 | GSE103963 | GEO

Trancriptome profiling of glioma cell line U87 and U251 with LAMP2A knockdown

Project description:The objective of the study was to examine the gene expression changes in glioma cell line U87 and U251 with LAMP2A knockdown. There were 15 samples in total- U87-1, U87-2, U87-3, U87-1812-1, U87-1812-2, U87-1812-3, U251-1, U251-2, U251-3, U251-1812-1, U251-1812-2, U251-1812-3, U251-1813-1, U251-1813-2, and U251-1813-3. U87-1 to U87-3 and U251--1 to U251-3 were used as the control groups (CON). U87-1812-1 to U871812-3, U251-1812-1 to U251-1812-3, and U251-1813-1 to U251-1813-3 were used as the experimental groups (shLAMP2A-1 and shLAMP2A-2). The total RNA of each sample was extracted from the stable transfected glioma cells by using TRIzol reagent. Then the RNA samples were processed for high throughput transcriptome sequencing on Illumina HiSeq 3000 platform. There were two types of libraries: the circRNA, mRNA, and lncRNA were all constructed by removing rRNA (one library, three types of RNA were analyzed together), and the insert fragment was about 300bp; the small RNA was constructed and analyzed separately, mainly microRNA of about 22bp. Results: among 60612 cleaned mRNAs, 781 were differentially expressed in U87-1812 group compared with U87 group, 146 were differentially expressed in U251-1812 group compared with U251 group, 43 were differentially expressed in U251-1813 group compared with U251 group (padj ≤ 0.05 and expression change ≥2 fold). The differential expressed genes distributed in all chromosomes. Functional annotation with GO and KEGG enrichment revealed the top functional groups including inflammation, DNA replication, cell adhesion, TNF, IL17, and axon guidance signaling pathways.

2024-07-15 | GSE270618 | GEO

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