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Single cell RNA-seq Analysis of Wild Type(WT), Dcaf11 knockout(KO) and Dcaf11 knockdown(KD) embryos

ABSTRACT: Single cell RNA-seq Analysis of Wild Type(WT), Dcaf11 knockout(KO) and Dcaf11 knockdown(KD) embryos

PROVIDER: PRJNA548909 | ENA |

REPOSITORIES: ENA

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Single cell RNA-seq Analysis of Wild Type(WT), Dcaf11 knockout(KO) and Dcaf11 knockdown(KD) embryos

Project description:Telomeres play vital roles in ensuring chromosome stability and are thus closely linked with the onset of aging and human disease. Telomeres undergo extensive lengthening during early embryogenesis through the so-called alternative lengthening of telomere (ALT) mechanism. However, the detailed molecular mechanism of telomere resetting in early embryos remains unknown. Here, we showed that Dcaf11 participates in telomere elongation in early embryos and 2-cell-like embryonic stem cells (ESCs) in a telomerase-independent manner. The deletion of Dcaf11 in embryos and ESCs leads to reduced telomere sister-chromatid exchange (T-SCE) and impairs telomere lengthening. Importantly, Dcaf11-deficient mice exhibit gradual telomere erosion with successive generations, and hematopoietic stem cell (HSC) activity is greatly compromised. Mechanistically, DCAF11 reactivates Zscan4 and facilitates the removal of heterochromatic H3K9me3 at telomere/subtelomere regions through targeting TRIM28 for ubiquitination-mediated degradation. Our study therefore demonstrates that the ALT factor Dcaf11 plays important roles in telomere elongation in early embryos and ESCs.

2021-01-01 | GSE132745 | GEO

RNA-seq Analysis of Wild Type(WT) and Dcaf11 overexpression (OE) ESCs

Project description:Telomeres play vital roles in ensuring chromosome stability and are thus closely linked with the onset of aging and human disease. Telomeres undergo extensive lengthening during early embryogenesis. However, the detailed molecular mechanism of telomere resetting in early embryos remains unknown. Here, we show that Dcaf11 (Ddb1- and Cul4-associated factor 11) participates in telomere elongation in early embryos and 2-cell-like embryonic stem cells (ESCs). The deletion of Dcaf11 in embryos and ESCs leads to reduced telomere sister-chromatid exchange (T-SCE) and impairs telomere lengthening. Importantly, Dcaf11-deficient mice exhibit gradual telomere erosion with successive generations, and hematopoietic stem cell (HSC) activity is also greatly compromised. Mechanistically, Dcaf11 targets Kap1 (KRAB-associated protein 1) for ubiquitination-mediated degradation, leading to the activation of Zscan4 downstream enhancer and the removal of heterochromatic H3K9me3 at telomere/subtelomere regions. Our study therefore demonstrates that Dcaf11 plays important roles in telomere elongation in early embryos and ESCs through activating Zscan4.

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ULI-NChIP-seq Analysis of Wild Type(WT) and Dcaf11 overexpresion(OE) ESCs [ChIP-seq]

Project description:Our study demonstrates that Dcaf11 plays important roles in telomere elongation in early embryos and ESCs through activating Zscan4.

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DIA proteomic analysis of unstimulated murine bone marrow derived macrophages from WT, Nrf2 KO and Keap1 KD cells

Project description:Unstimulated murine bone marrow derived macrophages cultured in L92 media from WT (4 biological replicates), Nrf2 KO (3 biological replicates) and Keap1 KD BMDM (3 biological replicates) were processed and analysed utilising DIA (label free) proteomic analysis. The Nrf2 KO mouse (DOI: 10.1006/bbrc.1997.6943 ) and Keap1 KD mouse ( DOI: 10.1128/MCB.01591-09) were previously published as noted.

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Gene expression profile in Yaf2 KD and/or RYBP KO ES cells.

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Project description:In order to indentify the transcriptional differences between GFI1 KD and GFI1 KO mice that may account for differences in occurence of AML between these mice, we performed exresiion profiling by RNA-Seq on healthy young and old mice mice from both genotypes. In the case of GFI1 KD, the older mice had developped AML whereas KO mice of comparable ages did not.

2018-06-01 | GSE102957 | GEO

Gene expression profile in Yaf2 KD and/or RYBP KO ES cells.

Project description:Gene expression change by Yaf2 KD in wild type or RYBP KO ES cells. Total RNAs were extracted from the respective ES cells, and were subjected to microarray analysis using Affymetrix GeneChip Mouse Genome 430A 2.0 arrays

2012-04-03 | E-GEOD-32288 | biostudies-arrayexpress

Kap1 ChIP-seq Analysis of Wild Type(WT) and Dcaf11 overexpresion(OE) ESCs

Project description:ESC Kap1 profiles of WT and Dcaf11 OE were generated by deep sequencing, using Illumina GAIIx.

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zebrafish embryos proteome for slbp2 KO F3 and wild type

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2018-11-27 | PXD008614 | Pride

mRNA-Seq of BC-3 IRF4 KO, BATF KO, and vIRF3 KD

Project description:The Kaposi's sarcoma-associated herpesviruses causes several cancers including Kaposi's sarcoma and primary effusion lymphoma (PEL). Our work reveals that the cellular transcription factors interferon regulatory factor 4 (IRF4) and basic leucine zipper ATF-like transcription factor (BATF), as well as the viral interferon regulatory factor 3 (vIRF3) are critical oncogenic dependencies specific to PEL cell lines. To understand the functions of these transcription factors, we performed mRNA-Seq on the PEL BC-3 cell lines that have been targeted for CRISPR/Cas9 IRF4 KO, BATF KO and MDM4 KO (as unrelated negative control) and CRISPRi-mediated vIRF3 KD. Our results reveal that these oncogenic factors may cooperate to regulate the expression of the same mRNAs.

2020-08-13 | GSE132707 | GEO

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