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Cell-of-origin specific 3D genome structure acquired during somatic cell reprogramming

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Mus musculus

PROVIDER: GSE76481 | GEO | 2016/03/01

SECONDARY ACCESSION(S): PRJNA307546

REPOSITORIES: GEO

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Cell-of-Origin-Specific 3D Genome Structure Acquired during Somatic Cell Reprogramming.

Project description:Forced expression of reprogramming factors can convert somatic cells into induced pluripotent stem cells (iPSCs). Here we studied genome topology dynamics during reprogramming of different somatic cell types with highly distinct genome conformations. We find large-scale topologically associated domain (TAD) repositioning and alterations of tissue-restricted genomic neighborhoods and chromatin loops, effectively erasing the somatic-cell-specific genome structures while establishing an embryonic stem-cell-like 3D genome. Yet, early passage iPSCs carry topological hallmarks that enable recognition of their cell of origin. These hallmarks are not remnants of somatic chromosome topologies. Instead, the distinguishing topological features are acquired during reprogramming, as we also find for cell-of-origin-dependent gene expression patterns.

| S-EPMC4858530 | biostudies-literature

Cell-of-origin specific 3D genome structure acquired during somatic cell reprogramming

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2016-03-01 | E-GEOD-76481 | biostudies-arrayexpress

Cell-of-origin specific 3D genome structure acquired during somatic cell reprogramming [Expression]

Project description:We studied genome topology dynamics during reprogramming of different somatic cell types with highly distinct genome conformations. We find large-scale TAD repositioning and alterations of tissue-restricted genomic neighborhoods and chromatin loops, effectively erasing the somatic cell specific genome structures while establishing an embryonic stem cell-like 3D genome. Yet, early passage iPSCs carry topological hallmarks that enable discerning their cell-of-origin. These hallmarks are not remnants of somatic chromosome topologies. Instead, the distinguishing topological features are acquired during reprogramming, as we also find for cell-of-origin dependent gene expression patterns. Transcriptome analysis was performed in somatic cells (NSC, macrophages, MEFs and pre-B cells) and their corresponding early and late induced pluripotent stem cells. In addition, expression analysis was performed in E14 embryonic stem cells

2016-03-01 | E-GEOD-76480 | biostudies-arrayexpress

Cell-of-origin specific 3D genome structure acquired during somatic cell reprogramming [ChIP-Seq]

Project description:We studied genome topology dynamics during reprogramming of different somatic cell types with highly distinct genome conformations. We find large-scale TAD repositioning and alterations of tissue-restricted genomic neighborhoods and chromatin loops, effectively erasing the somatic cell specific genome structures while establishing an embryonic stem cell-like 3D genome. Yet, early passage iPSCs carry topological hallmarks that enable discerning their cell-of-origin. These hallmarks are not remnants of somatic chromosome topologies. Instead, the distinguishing topological features are acquired during reprogramming, as we also find for cell-of-origin dependent gene expression patterns. ChIPseq for CTCF and H3K27ac was performed on early and late iPS cells derived from different founders

2016-03-01 | E-GEOD-76478 | biostudies-arrayexpress

Cell-of-origin specific 3D genome structure acquired during somatic cell reprogramming [HiC-Seq]

Project description:We studied genome topology dynamics during reprogramming of different somatic cell types with highly distinct genome conformations. We find large-scale TAD repositioning and alterations of tissue-restricted genomic neighborhoods and chromatin loops, effectively erasing the somatic cell specific genome structures while establishing an embryonic stem cell-like 3D genome. Yet, early passage iPSCs carry topological hallmarks that enable discerning their cell-of-origin. These hallmarks are not remnants of somatic chromosome topologies. Instead, the distinguishing topological features are acquired during reprogramming, as we also find for cell-of-origin dependent gene expression patterns. Hi-C was performed in somatic cells (NSC, macrophages, MEFs and pre-B cells) and their corresponding early and late induced pluripotent stem cells. In addition Hi-C was performed in E14 embryonic stem cells

2016-03-01 | E-GEOD-76479 | biostudies-arrayexpress

Cell-of-origin specific 3D genome structure acquired during somatic cell reprogramming [Expression]

2016-03-01 | GSE76480 | GEO

Cell-of-origin specific 3D genome structure acquired during somatic cell reprogramming [HiC-Seq]

2016-03-01 | GSE76479 | GEO

Cell-of-origin specific 3D genome structure acquired during somatic cell reprogramming [ChIP-Seq]

2016-03-01 | GSE76478 | GEO

Cell-of-origin specific 3D genome structure acquired during somatic cell reprogramming

Project description:Cell-of-origin specific 3D genome structure acquired during somatic cell reprogramming

| PRJNA307546 | ENA

Local Genome Topology Can Exhibit an Incompletely Rewired 3D-Folding State during Somatic Cell Reprogramming.

Project description:Pluripotent genomes are folded in a topological hierarchy that reorganizes during differentiation. The extent to which chromatin architecture is reconfigured during somatic cell reprogramming is poorly understood. Here we integrate fine-resolution architecture maps with epigenetic marks and gene expression in embryonic stem cells (ESCs), neural progenitor cells (NPCs), and NPC-derived induced pluripotent stem cells (iPSCs). We find that most pluripotency genes reconnect to target enhancers during reprogramming. Unexpectedly, some NPC interactions around pluripotency genes persist in our iPSC clone. Pluripotency genes engaged in both "fully-reprogrammed" and "persistent-NPC" interactions exhibit over/undershooting of target expression levels in iPSCs. Additionally, we identify a subset of "poorly reprogrammed" interactions that do not reconnect in iPSCs and display only partially recovered, ESC-specific CTCF occupancy. 2i/LIF can abrogate persistent-NPC interactions, recover poorly reprogrammed interactions, reinstate CTCF occupancy, and restore expression levels. Our results demonstrate that iPSC genomes can exhibit imperfectly rewired 3D-folding linked to inaccurately reprogrammed gene expression.

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