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Homo sapiens

ABSTRACT: Expression profiles in wild-type and IDH1 R132H/WT human astroglial cells [RNA-seq]

PROVIDER: PRJNA401722 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6010140_1.fastq.gz	Fastqsanger.gz
	SRR6010140_2.fastq.gz	Fastqsanger.gz
	SRR6010141_1.fastq.gz	Fastqsanger.gz
	SRR6010141_2.fastq.gz	Fastqsanger.gz
	SRR6010137_1.fastq.gz	Fastqsanger.gz

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Similar Datasets

Homo sapiens

Project description:DNA methylation profiles in wild-type and IDH1 R132H/WT human astroglial cells [methylation]

| PRJNA401868 | ENA

DNA methylation and expression profiles in wild-type and IDH1 R132H/WT human astroglial cells

Project description:DNA methylation and expression profiles in wild-type and IDH1 R132H/WT human astroglial cells

| PRJNA401647 | ENA

Expression profiles in wild-type and IDH1 R132H/WT human astroglial cells [RNA-seq]

Project description:Mutations in the isocitrate dehydrogenase 1 (IDH1) gene are critical to oncogenesis. The exact mechanism by which mutant IDH1 drives cell transformation is still not fully understood, partially due to the difficulty of maintaining cells with endogenously mutated IDH1. We employed a “single base editing” technique and efficiently introduced the monoallelic point mutation of IDH1 R132H (IDH1R132H/WT) into non-neoplastic human astroglial cells. Characterization of our cellular models revealed that IDH1R132H/WT inhibited cell proliferation and promoted cell migration via mechanisms mediated by its oncometabolite 2-HG. Global gene expression and epigenetic analysis identified novel molecular targets of IDH1R132H/WT, namely the Hippo pathway effector, Yes-associated protein (YAP), and its downstream signaling pathway Notch. In summary, the “single base editing” strategy introduces a new paradigm that recapitulates the biological function of IDH1 R132H/WT and its oncometabolite 2-HG, which can be easily applied to other cell models. Our study provides a valuable model for novel discoveries of molecular mechanisms during IDH1 R132H/WT-driven pre-cancerous events.

2018-06-01 | GSE103557 | GEO

DNA methylation profiles in wild-type and IDH1 R132H/WT human astroglial cells [methylation]

2018-06-01 | GSE103556 | GEO

DNA methylation alterations and transcriptional gene silencing induced by IDH1 R132H mutation [Illumina]

Project description:The cytosolic NADP+-dependent isocitrate dehydrogenase IDH1 is frequently mutated in human cancers. Recent studies have shown that IDH1 mutant primary glioblastomas (GBM) and acute myeloid leukemias (AML) display robust association with CpG island methylator phenotype (CIMP). Such observations bring into question whether IDH1 mutations directly contribute to the development of CIMP or if the hypermethylation phenotype precedes acquisition of IDH1 mutations. To reveal the effects of IDH1 mutations on DNA methylation and gene expression, we introduced the most frequently observed IDH1 mutation, R132H, into a human cancer cell line through gene targeting. We profiled changes in methylation at over 27,000 CpG dinucleotides spanning 14,475 unique gene regions and characterized genome-wide gene expression alterations resulting from IDH1R132H knockin. We observed consistent changes in both DNA methylation and gene expression when comparing two independent IDH1R132H knockin clones to their wild-type parent, and report hypermethylation of over 2,000 loci, the majority of which contained preexisting methylation in IDH1WT parental cells. These loci exhibit the same trend in primary TCGA glioblastoma tumors with mutant IDH1 as compared to those with wild-type IDH1 and have significant overlap with genes hypermethylated in glioma-CIMP+ tumors. Furthermore, we identify specific DNA methylation and gene expression alterations which correlate with IDH1 mutations in our cell-line model as well as primary glioblastomas, including hypermethylation and transcriptional silencing of RBP1. The presented data provide insight on epigenetic alterations induced by IDH1 mutations and support a contributory role for IDH1 mutants in regulation of DNA methylation and gene expression in human cancer cells. Comparison of IDH1 R132H and wild-type HCT116 cells as well as HOG cells overexpressing either wild-type IDH1 or IDH1 R132H

2012-08-13 | E-GEOD-31133 | biostudies-arrayexpress

Differential gene expression in IDH1-R132H Tumor Neurospheres generated from a mouse model of Low Grade Glioma

Project description:IDH1-R132H is expressed in Low Grade Glioma (LGG) in combination with mutation in ATRX and TP53 genes. IDH1-R132H results in gain of function with production of 2-hydroxygluatrate, that in turn generates a hypermethylatyed phenotype in DNA and histone with consequences in epigenetic regulation of gene expression. Here we will compare the gene expression profile between IDH1-R132H and IDH1 Wt tumor neurospheres.

2019-03-18 | GSE94974 | GEO

Gene expression analysis of IDH1 wild type and IDH1 R132H mutated U87 cells

Project description:U87 cells were transduced with IDH1 WT or IDH1 R132H and stable clones were selected.

2018-07-12 | GSE101291 | GEO

Differential gene expression in IDH1-R132H Low Grade Glioma animal brain tumors brain in response to 10 Gy of radiation

Project description:IDH1-R132H is expressed in Low Grade Glioma (LGG) in combination with loss of function mutation in ATRX and TP53 genes. IDH1-R132H results in gain of function with production of 2-hydroxygluatrate, that in turn generates a hypermethylatyed phenotype in DNA and histone with consequences in epigenetic regulation of gene expression. Here we will compare the gene expression profile between IDH1-R132H and IDH1 Wt LLG animal brain tumors in reponse to radiation

2019-03-18 | GSE94975 | GEO

Effect of IDH1 mutation induced by doxycycline on gene expression during VSVΔ51 infection in LN-229-TRE-R132H glioblastoma cells

Project description:To investigate whether IDH1 mutation influence the effects of oncolytic virus VSVΔ51, we transduced doxycycline-inducible IDH1-R132H lentiviruses into LN-229 to establish the LN-229-TRE-R132H cell line. We then performed gene expression profiling analysis using data obtained from RNA-seq of LN-229-TRE-R132H cells infected with or without VSVΔ51 in the presence or absence of IDH1 mutation induced by doxycycline.

2023-09-19 | GSE208634 | GEO

Gene expression profile of Idh1 wild-type and mutant glioma initiating cells

Project description:Human astrocytomas and oligodendrogliomas are defined by mutations in the metabolic enzyme isocitrate dehydrogenase (IDH) 1 or 2. Mutant IDH1 causes the production and accumulation of the metabolite 2 hydroxyglutarate, which induces genome-wide hypermethylation, and is thought to be a driver mutation of these tumours. However, there are multiple contradictory effects of mutant IDH1 in cell lines and in vivo models, prompting us to study the effect of mutant IDH1 on cell differentiation, proliferation, and apoptosis. Here we established mouse glioma initiating cells (GIC) by inactivating the tumour suppressor genes Pten and p53 in the neural stem/progenitor cell population of the forebrain, and compared these GIC with triple mutant tumours expressing in addition the Idh1 R132H mutation. We found that Idh1 mutant cells proliferate less in vitro and mice with Idh1 mutant tumour survived significantly longer than their Idh1 wild type counterparts. By comparing the RNA expression profiles of Idh wild-type and Idh mutant cells and tumours we identified endoplasmic reticulum stress pathways were significantly associated with Idh1 mutation.

2019-08-22 | GSE119741 | GEO

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