Homo sapiens
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ABSTRACT:
PROVIDER: PRJNA396222 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Genome-wide profiling of DNA methylation by MRE-seq during microRNA-mediated neuronal reprogramming [MRE-seq]
| PRJNA396229 | ENA
Project description:Genome-wide profiling of chromatin accessibility during microRNA-mediated neuronal reprogramming [ATAC-seq]
| PRJNA396221 | ENA
Project description:The study examines the impact of XPC overexpression on DNA demethylation in human dermal fibroblasts (HDFs) and during the early phase of somatic cell reprogramming (pre-iPSCs). We profiled the 5mC status in wild type and XPC gain-of-function HDFs and pre-iPSCs on a genome-wide scale by MeDIP-seq. XPC overexpression results in a loss of DNA methylation in both HDFs and pre-iPSCs. In XPC gain-of-function cells, not only does DNA methylation occur in fewer regions compared to control WT cells, but overall methylation levels are lower than in WT cells.
2017-05-22 | GSE92445 | GEO
Project description:Methylated DNA immunoprecipitation sequencing (MeDIP-Seq) is a widely used approach to study DNA methylation genome-wide. Here, we present a novel MeDIP-Seq protocol compatible with the Ion Torrent semiconductor-based sequencing platform that is scalable and accurately identifies sites of differential DNA methylation. Additionally, we demonstrate that the high-throughput data derived from MeDIP-Seq on the Ion Torrent platform provides adequate coverage of CpG cytosines, the methylation states of which we validated at single-base resolution on the Infinium HumanMethylation450K Beadchip array. We applied this integrative approach to further investigate the role of DNA methylation in alternative splicing and to profile 5-mC and 5-hmC variants of DNA methylation in normal human brain tissue that we observed localize over distinct genomic regions. These applications of MeDIP-Seq on the Ion Torrent platform have broad utility and add to the current methodologies for profiling genome-wide DNA methylation states in normal and disease conditions. MeDIP-Seq on Ion Torrent Platform in HCT116 and Human Brain
2015-06-10 | E-GEOD-61968 | biostudies-arrayexpress
Project description:Methylated DNA immunoprecipitation sequencing (MeDIP-Seq) is a widely used approach to study DNA methylation genome-wide. Here, we present a novel MeDIP-Seq protocol compatible with the Ion Torrent semiconductor-based sequencing platform that is scalable and accurately identifies sites of differential DNA methylation. Additionally, we demonstrate that the high-throughput data derived from MeDIP-Seq on the Ion Torrent platform provides adequate coverage of CpG cytosines, the methylation states of which we validated at single-base resolution on the Infinium HumanMethylation450K Beadchip array. We applied this integrative approach to further investigate the role of DNA methylation in alternative splicing and to profile 5-mC and 5-hmC variants of DNA methylation in normal human brain tissue that we observed localize over distinct genomic regions. These applications of MeDIP-Seq on the Ion Torrent platform have broad utility and add to the current methodologies for profiling genome-wide DNA methylation states in normal and disease conditions.
2015-06-10 | GSE61968 | GEO
Project description:The induction of pluripotency or trans-differentiation of one cell type to another can be accomplished with cell lineage-specific transcription factors. Here we report that repression of a single RNA binding protein PTB, which occurs during normal brain development via the action of miR-124, is sufficient to induce trans-differentiation of fibroblasts into functional neurons. Besides its traditional role in regulated splicing, we show that PTB has a previously undocumented function in the regulation of microRNA functions, suppressing or enhancing microRNA targeting by competitive binding on target mRNA or altering local RNA secondary structure. A key event during neuronal induction is the relief of PTB-mediated blockage of microRNA action on multiple components of the REST complex, thereby de-repressing a large array of neuronal genes, including miR-124 and multiple neuronal-specific transcription factors, in non-neuronal cells. This converts a negative feedback loop to a positive one to elicit cellular reprogramming to the neuronal lineage. Examination of PTB regulated AGO2/microRNA targeting in Hela cells by CLIP-seq (two biological replicates) , paired-end RNA-seq (control and PTB knockdown) and 3’end stability RNA-seq (control and PTB knockdown)
2013-01-17 | E-GEOD-42701 | biostudies-arrayexpress
Project description:Neuronal microRNAs, miR-9/9* and miR-124 (miR-9/9*-124), exert reprogramming activities to direct cell-fate conversion of adult human fibroblasts to post-mitotic neurons and enable the generation of discrete neuronal subtypes with additional transcription factors. Previously, the molecular events underlying the neurogenic switch mediated by microRNAs during neuronal reprogramming were unknown. Here, we systematically dissected the neurogenic state induced by miR-9/9*-124 alone and reveal the surprising capability of miR-9/9*-124 in coordinately stimulating the reconfiguration of chromatin accessibilities, DNA methylation and transcriptome, leading to the generation of functionally excitable neurons, yet unbiased towards a particular subtype-lineage. We show that the microRNA-induced neuronal state enables additional transcription factors, ISL1 and LHX3, to selectively commit conversion to a highly homogenous population of human spinal cord motor neurons. Taken together, our study reveals a modular synergism between microRNAs and transcription factors that allows lineage-specific neuronal reprogramming, providing a platform for generating distinct subtypes of human neurons.
2017-08-04 | GSE102025 | GEO
Project description:Neuronal microRNAs, miR-9/9* and miR-124 (miR-9/9*-124), exert reprogramming activities to direct cell-fate conversion of adult human fibroblasts to post-mitotic neurons and enable the generation of discrete neuronal subtypes with additional transcription factors. Previously, the molecular events underlying the neurogenic switch mediated by microRNAs during neuronal reprogramming were unknown. Here, we systematically dissected the neurogenic state induced by miR-9/9*-124 alone and reveal the surprising capability of miR-9/9*-124 in coordinately stimulating the reconfiguration of chromatin accessibilities, DNA methylation and transcriptome, leading to the generation of functionally excitable neurons, yet unbiased towards a particular subtype-lineage. We show that the microRNA-induced neuronal state enables additional transcription factors, ISL1 and LHX3, to selectively commit conversion to a highly homogenous population of human spinal cord motor neurons. Taken together, our study reveals a modular synergism between microRNAs and transcription factors that allows lineage-specific neuronal reprogramming, providing a platform for generating distinct subtypes of human neurons.
2017-08-04 | GSE102024 | GEO
Project description:Neuronal microRNAs, miR-9/9* and miR-124 (miR-9/9*-124), exert reprogramming activities to direct cell-fate conversion of adult human fibroblasts to post-mitotic neurons and enable the generation of discrete neuronal subtypes with additional transcription factors. Previously, the molecular events underlying the neurogenic switch mediated by microRNAs during neuronal reprogramming were unknown. Here, we systematically dissected the neurogenic state induced by miR-9/9*-124 alone and reveal the surprising capability of miR-9/9*-124 in coordinately stimulating the reconfiguration of chromatin accessibilities, DNA methylation and transcriptome, leading to the generation of functionally excitable neurons, yet unbiased towards a particular subtype-lineage. We show that the microRNA-induced neuronal state enables additional transcription factors, ISL1 and LHX3, to selectively commit conversion to a highly homogenous population of human spinal cord motor neurons. Taken together, our study reveals a modular synergism between microRNAs and transcription factors that allows lineage-specific neuronal reprogramming, providing a platform for generating distinct subtypes of human neurons.
2017-08-04 | GSE102033 | GEO
Project description:Neuronal microRNAs, miR-9/9* and miR-124 (miR-9/9*-124), exert reprogramming activities to direct cell-fate conversion of adult human fibroblasts to post-mitotic neurons and enable the generation of discrete neuronal subtypes with additional transcription factors. Previously, the molecular events underlying the neurogenic switch mediated by microRNAs during neuronal reprogramming were unknown. Here, we systematically dissected the neurogenic state induced by miR-9/9*-124 alone and reveal the surprising capability of miR-9/9*-124 in coordinately stimulating the reconfiguration of chromatin accessibilities, DNA methylation and transcriptome, leading to the generation of functionally excitable neurons, yet unbiased towards a particular subtype-lineage. We show that the microRNA-induced neuronal state enables additional transcription factors, ISL1 and LHX3, to selectively commit conversion to a highly homogenous population of human spinal cord motor neurons. Taken together, our study reveals a modular synergism between microRNAs and transcription factors that allows lineage-specific neuronal reprogramming, providing a platform for generating distinct subtypes of human neurons.
2017-08-04 | GSE102022 | GEO