Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1014697 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR25992026_1.fastq.gz | Fastqsanger.gz | |||
| SRR25992026_2.fastq.gz | Fastqsanger.gz | |||
| SRR25992027_1.fastq.gz | Fastqsanger.gz | |||
| SRR25992027_2.fastq.gz | Fastqsanger.gz | |||
| SRR25992028_1.fastq.gz | Fastqsanger.gz |
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Project description:We report the first RNA profiing of mammalian neural cells grown in vitro. About 50 million reads are generated by RNA-seq from rat astrocytes, neurons and oligodendrocyte precursor cells in primary culture. These data are compared with theose generated from the correponding mouse neural cells that are acutely purified from brains. Cross-species RNA-seq data analysis revealed hundreds of genes that are differentially expressed between cultured and acutely purified cells. Astrocytes have more such genes compared to neurons and oligodendrocyte precursor cells, indicating that signalling pathways are greatly perturbed in cultured astrocytes. mRNA profiles of rat astrocytes, neurons and oligodendrocyte precursor cells cultured in vitro
2015-09-05 | E-GEOD-72739 | biostudies-arrayexpress
Project description:We report the first RNA profiing of mammalian neural cells grown in vitro. About 50 million reads are generated by RNA-seq from rat astrocytes, neurons and oligodendrocyte precursor cells in primary culture. These data are compared with theose generated from the correponding mouse neural cells that are acutely purified from brains. Cross-species RNA-seq data analysis revealed hundreds of genes that are differentially expressed between cultured and acutely purified cells. Astrocytes have more such genes compared to neurons and oligodendrocyte precursor cells, indicating that signalling pathways are greatly perturbed in cultured astrocytes.
2015-09-05 | GSE72739 | GEO
Project description:We have found that the cell yield of oligodendrocyte precursor cells (OPCs) are higher in 31.5 degC than in 37 degC not by suppression of apoptosis but by enhancement of proliferation. Here, we performed transcriptome analysis using Affymetrix GeneChip on the primary cultured oligodendrocyte precursor cells prepared from the brain of ICR mice. Oligodendrocyte precursor cells were prepared from primary mixed cell cultures of embryonic mouse cerebral hemispheres. The cerebral hemispheres from 15-day-old mouse embryos were enzymatically dissociated, seeded and cultured for 5 days in D-MEM containing 10% FBS. The cells were passaged to serum-free basal medium and cultured for further 48 hr at 37 degC and 31.5 degC.
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Project description:Transcriptome outcome of rat oligodendrocyte precursor cells, which were knocked down with short-hairpin RNA (shRNA) for vascular cell adhesion molecule 1 (VCAM1)
2016-10-14 | GSE86862 | GEO
Project description:We have found that the cell yield of oligodendrocyte precursor cells (OPCs) are higher in 31.5 ℃ than in 37 ℃ not by suppression of apoptosis but by enhancement of proliferation. Here, we performed transcriptome analysis using Affymetrix GeneChip on the primary cultured oligodendrocyte precursor cells prepared from the brain of ICR mice.
2010-03-06 | GSE20645 | GEO
Project description:The molecular basis of CNS myelin regeneration (remyelination) is poorly understood. Here we generate a comprehensive transcriptional profile of the separate stages of spontaneous remyelination following focal demyelination in the rat CNS. White matter tracts in the rat caudal cerebellar peduncles were focally demyelinated using 0.1% ethidium bromide, the lesions were isolated using laser capture microdissection at 5, 14 and 28 days postlesion, followed by RNA extraction and Illumina beadarray analysis of differentially expressed transcripts. We found transcripts encoding retinoid acid receptor RXR-gamma is highly differentially expressed during remyelination, and that oligodendrocyte lineage cells express RXR-gamma in rat tissues undergoing remyelination and in active and remyelinated MS lesions. RXR-gamma knockdown by RNA interference or RXR-specific antagonists severely inhibit oligodendrocyte differentiation in culture. In RXR-gamma deficient mice, adult oligodendrocyte precursor cells efficiently repopulate lesions following demyelination, but display delayed differentiation into mature oligodendrocytes. Administration of the RXR agonist 9-cis-retinoic acid to demyelinated cerebellar slice cultures and to aged rats following demyelination results in more remyelinated axons. RXR-gamma is therefore a positive regulator of endogenous oligodendrocyte precursor cell differentiation and remyelination, and may be a pharmacological target for CNS regenerative therapy. 9 Samples analysed, 3 different time points each with 3 biological replicates.
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Project description:Transcriptome response to endoplasmic reticulum stress in rat oligodendrocyte precursor cells
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Project description:The molecular basis of CNS myelin regeneration (remyelination) is poorly understood. Here we generate a comprehensive transcriptional profile of the separate stages of spontaneous remyelination following focal demyelination in the rat CNS. White matter tracts in the rat caudal cerebellar peduncles were focally demyelinated using 0.1% ethidium bromide, the lesions were isolated using laser capture microdissection at 5, 14 and 28 days postlesion, followed by RNA extraction and Illumina beadarray analysis of differentially expressed transcripts. We found transcripts encoding retinoid acid receptor RXR-gamma is highly differentially expressed during remyelination, and that oligodendrocyte lineage cells express RXR-gamma in rat tissues undergoing remyelination and in active and remyelinated MS lesions. RXR-gamma knockdown by RNA interference or RXR-specific antagonists severely inhibit oligodendrocyte differentiation in culture. In RXR-gamma deficient mice, adult oligodendrocyte precursor cells efficiently repopulate lesions following demyelination, but display delayed differentiation into mature oligodendrocytes. Administration of the RXR agonist 9-cis-retinoic acid to demyelinated cerebellar slice cultures and to aged rats following demyelination results in more remyelinated axons. RXR-gamma is therefore a positive regulator of endogenous oligodendrocyte precursor cell differentiation and remyelination, and may be a pharmacological target for CNS regenerative therapy.
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Project description:We investigate the role of Brg1 and Olig2 during oligodendrocyte differentiation by combining gene conditional knockout and next generation sequencing technology. We generate genome-wide maps of RNA polymerase II (RPolII), Brg1 (Smarca4), Olig2 and histone modifications in primary rat oligodendrocyte precursor cells (iOLs), differentiating oligodendrocytes and mature oligodendrocytes.We found that Brg1 is intensely regulated by RPolII at the initiation of oligodedrocyte differentiation. The genomic distribution of Brg1 in differentiating oligodendrocytes is pre-directed by Olig2 in iOLs. The dynamic interaction of Brg1 and chromatin is correlate with the distinct stages of gene expression during maturation. Finally, we show that Brg1 and Olig2 localization predict critical genes controling CNS myeliantion. Our study represents the first detailed analysis of genomic landscape during the oligodendrocyte development and provides a framework for further understanding of molecular mechanisms underlying oligodendrocyte lineage progression. Genomic distribution of Brg1, Olig2, RPolII and three different histone modifications in three oligodendrocyte developemtal stages were examined using primary cells by ChIP-sequencing. Spinal cord mRNA profiles of 14-day old control and Brg1c/c;Olig1-Cre mice were generated by RNA-sequencing.
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Project description:Oligodendrocytes, the myelinating cells of the central nervous system, are essential for correct brain function. They originate from oligodendrocyte precursor cells (OPCs) through a differentiation process which is only incompletely understood and impaired in a variety of demyelinating diseases. Better knowledge of this differentiation holds the promise to develop novel therapies for these disorders. We investigated the differentiation of rat oligodendrocyte precursor cells to oligodendrocytes in vitro. After confirmation of differentiation by immunohistochemical analysis using cell type-specific marker proteins, we conducted a quantitative proteomics study using tandem mass tags (TMT). We investigated four time points of differentiation covering early, intermediate, and late stages. Data analysis was perfomed using Mascot and Maxquant.
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