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RNA-seq of mouse embryonic stem cell states expressing Esrrb, Tbx3, and Zscan4

ABSTRACT: We develop a theoretical-computational framework for inferring cell state transition dynamics, and apply it to mouse embryonic stem cells states defined by expression levels of Esrrb, Tbx3, and Zscan4. RNA-seq was performed to characterize the larger transcriptional differences between states expressing combinations of these three specific genes, and proceed to explore their dynamic interconversion.

ORGANISM(S): Mus musculus

PROVIDER: GSE86417 | GEO | 2016/11/03

SECONDARY ACCESSION(S): PRJNA341719

REPOSITORIES: GEO

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Mus musculus

Project description:RNA-seq of mouse embryonic stem cell states expressing Esrrb, Tbx3, and Zscan4

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RNAi profiling of mouse embryonic stem cells using short hairpin RNAs against Nanog, Oct4, Sox2, Esrrb, Tbx3, Tcl1, Mm.343880 and Dppa4

Project description:We present an integrated approach to identify genetic mechanisms that control self-renewal in mouse embryonic stem (ES) cells. Short hairpin RNA (shRNA) techniques are employed to down regulate a set of gene-products whose expression patterns suggest self-renewal regulatory functions. We focus on transcriptional regulators and identify seven molecules whose shRNA-mediated depletion induces differentiation, including four whose roles in self-renewal had not been demonstrated. We analyze the expression profiles of embryonic stems (ES) cells transduced with individual shRNA vectors, maintained in the presence of LIF. Experiment Overall Design: We analyze transcriptome dynamics after down-regulating each of the 8 self-renewal regulators identified in the current studies. These are Nanog, Oct4, Sox2, Esrrb, Tbx3, Tcl1, Mm.343880 and Dppa4. Gene specific shRNA transduced GFP+ cells were FACS purified daily during a seven day interval and used to interrogate Affymetrix microarrays. Empty H1P vector served as a reference.

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CHIP-seq analysis about Histones and Zscan4 after Zscan4 overexpression

Project description:Transcription factor Zscan4 was newly discovered to be a marker of the intermediate state of 2-cell like cells . In addition, the WGCNA discovered a strong positive correlation between the expression of Zscan4 and that of MT2/MERVL .Hence, we examined the possibility for Zscan4 as an activator of MT2/MERVL.

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Rejuvenation of pluripotent stem cells by frequent activation of Zscan4, Part B

Project description:The gold standard for examining pluripotency of stem cells is to see whether cells can contribute to entire body of animals. Here we show that the increased frequency of Zscan4 activation in mouse ES cells not only enhances, but also maintains their developmental potency in long-term cell culture. As the potency increases, even a whole animal can be produced from a single ES cell injected into 4N blastocyst at unusually high success rate. Although Zscan4-activated cells express genes that are also expressed in 2-cell stage mouse embryos, transiently Zscan4-activated state of ES cells is not associated with the high potency of ES cells. It is thus concluded that ES cells acquire higher potency by going through transient Zscan4 activation state more frequently than the regular state. Taken together, our results indicate that frequent activation of Zscan4 can rejuvenate pluripotent stem cells. Previously, we have shown that constitutive and strong expression of Zscan4 arrest the proliferation of ES cells (refs). We sought for the system to mimic the transient expression of Zscan4 and decided to use ERT2 - Tamoxifen-inducible system (refs). The system allows one to keep a transgene off in the absence of Tmx and turn on in the presence of Tmx at will (refs). We first made a plasmid construct pCAG-Zscan4-ERT2, in which ZSCAN4 ORF fused with ERT2 domain can be driven by a strong ubiquitous promoter CAG. To further investigate this, we transfected pCAG-Zscan4-ERT2 plasmid into an F1 hybrid (C57BL/6J vs. 129) ES cell line V6.5 and isolated multiple cell clones. Based on the qRT-PCR analysis of Zscan4 ORF, we found that cell clones showed a variety of Zscan4 expression levels. We selected the clone that showed the highest Zscan4 expression levels (clone #18) and a clone #2 with the background Zscan4 level.

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CHIP-seq analysis about Histones and Zscan4 after Zscan4 overexpression

Project description:CHIP-seq analysis about Histones and Zscan4 after Zscan4 overexpression

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The ERK5 signalling pathway employs a KLF2-ZSCAN4 auto-regulatory module to induce embryonic 2-cell stage genes

Project description:The ERK5 MAP kinase signalling pathway was recently discovered as a driver of naïve pluripotency in mouse Embryonic Stem Cells (mESCs). However, the molecular functions of ERK5 in mESCs have not been investigated. Here, we employ combinatorial mESC proteomics to identify ERK5 target genes and substrates. Global proteomic profiling reveals ZSCAN4 and other 2-cell stage genes as transcriptional targets of the ERK5 pathway. ZSCAN4 expression is specifically induced by ERK5-dependent transcription of the core pluripotency factor KLF2. Additionally, ERK5 directly phosphorylates tandem KLF2 Thr-Pro/Ser-Pro motifs identified by phosphoproteomics to recruit the FBXW7-CUL1 E3 ligase, promoting KLF2 ubiquitylation and degradation. ERK5 phosphorylation of KLF2 thereby provides negative-feedback control to restrain transcriptional induction of ZSCAN4. Our data uncover an auto-regulatory module by which ERK5 co-opts KLF2 to pattern ZSCAN4 expression. This study provides the first molecular insight into ERK5 functions in mESCs, and suggests a novel role for ERK5 signalling in stem cell rejuvenation

2021-11-29 | PXD010581 | Pride

CHIP-seq analysis about H3K9me3 change after Zscan4 overexpression

Project description:Transcription factor Zscan4 was newly discovered to be a marker of the intermediate state of 2-cell like cells . In addition, WGCNA discovered a strong positive correlation between the expression of Zscan4 and that of MT2/MERVL. Hence, we examined the possibility for Zscan4 as an activator of MT2/MERVL.

2023-06-30 | GSE180003 | GEO

A dynamic role of Tbx3 in the pluripotency circuitry

Project description:Pluripotency represents a cell state comprising a fine-tuned pattern of transcription factor activity required for embryonic stem cell (ESC) self-renewal. TBX3 is the earliest expressed member of the T-box transcription factor family and is involved in maintenance and induction of pluripotency. Hence, TBX3 is believed to be a key member of the pluripotency circuitry, with loss of TBX3 coinciding with loss of pluripotency. We report a dynamic expression of TBX3 in vitro and in vivo using genetic reporter tools tracking TBX3 expression in mouse ESCs (mESCs). Low TBX3 levels are associated with reduced pluripotency, resembling the more mature epiblast. Notably, TBX3-low cells maintain the intrinsic capability to switch to a TBX3-high state and vice versa. Additionally, we show TBX3 to be dispensable for induction and maintenance of naive pluripotency as well as for germ cell development. These data highlight novel facets of TBX3 action in mESCs.

2015-12-09 | GSE73862 | GEO

A dynamic role of Tbx3 in the pluripotency circuitry

2015-12-09 | E-GEOD-73862 | biostudies-arrayexpress

RNA-seq analysis about Zscan4 knocked down samples and overpressed samples

Project description:Transcription factor Zscan4 was newly discovered to be a marker of the intermediate state of 2-cell like cells. In addition, the WGCNA discovered a strong positive correlation between the expression of Zscan4 and that of MT2/MERVL .Hence, we examined the possibility for Zscan4 as an activator of MT2/MERVL.

2019-07-08 | GSE120998 | GEO

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