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Genome-wide mapping of Nup98HoxA9- and Crm1-binding sites in ES cell lines.

ABSTRACT: We used ChIP-seq to examine the genome-wide binding of Nup98-HoxA9 and Crm1 in ES cells. Our analysis revealed that Nup98-HoxA9 is highly and preferentially targeted to specific chromatin sites, particularly near Hox cluster regions where the export factor Crm1 is originally prebound.

ORGANISM(S): Mus musculus

PROVIDER: GSE68783 | GEO | 2016/01/04

REPOSITORIES: GEO

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Genome-wide mapping of Nup98HoxA9- and Crm1-binding sites in ES cell lines.

Project description:We used ChIP-seq to examine the genome-wide binding of Nup98-HoxA9 and Crm1 in ES cells. Our analysis revealed that Nup98-HoxA9 is highly and preferentially targeted to specific chromatin sites, particularly near Hox cluster regions where the export factor Crm1 is originally prebound. chromatin immunoprecipitation

2016-01-04 | E-GEOD-68783 | biostudies-arrayexpress

Gene expression profiling of Nup98HoxA9 expressing ES cells

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Gene expression profiling of Nup98HoxA9 expressing ES cells

Project description:To know whether the Nup98-HoxA9 affects global gene expression, we performed DNA microarray analysis using the following four clones: two independent Nup98-HoxA9 ES clones (clone#1 and clone#9), parental ES cells, and HoxA9-Ct ES clone. Two independent Nup98-HoxA9 ES clones (clone#1 and clone#9), and HoxA9-Ct ES clone, was compared with parental ES cells (reference sample).

2016-01-04 | E-GEOD-67967 | biostudies-arrayexpress

Genome-wide mapping of SET-Nup214, mutant NPM1 (NPM1c), and CRM1-binding sites in human leukemia or mouse ES cell lines

Project description:We used ChIP-seq to examine the genome-wide binding of CRM1, SET-Nup214, and NPM1c in leukemia cell lines. Our analysis revealed that CRM1, SET-Nup214, and NPM1c are preferentially targeted to HOX cluster regions.

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Genome-wide mapping of MLL1, CRM1, and NUP-fusion derivatives in human leukemia or mouse ES cell lines

Project description:We used ChIP-seq to examine the genome-wide binding of MLL1, CRM1, and NUP-fusions in human leukemia or mouse ES cell lines. Our analysis revealed that MLL1, CRM1, and NUP-fusions are preferentially co-localized on the genome.

2023-07-27 | GSE202837 | GEO

Genome-wide maps of NUP98 fusion and MLL1 co-bound targets and their chromatin state in NUP98 fusion transformed cells.

Project description:By performing biotin-mediated chromatin immunoprecipitation followed by next generation sequencing (ChIP-seq) for two different NUP98 fusions, we defined the genome-wide direct binding sites of NUP98-HOXA9 or NUP98-HOXD13. To test whether NUP98 fusions and Mll1 were recruited to the same region of Hox genes promoters, Mll1 ChIP-seq analysis was carried out in murine NUP98-HOXA9 transformed cells using an anti-Mll1n antibody. In agreement with our results showing that NUP98-HOXA9 interacts with MLL1 in NSL/MLL1 complex, Mll1 binding targets significantly overlap with that of NUP98-HOXA9 at promoter region and gene body region. Given that MOF and MLL1 work in concert to modify H4K16ac and H3K4me3 at promoters, we further test whether H3K4me3 and H4K16ac marks are associated with NUP98-HOXA9-bound targets in murine NUP98-HOXA9 transformed cells by anti-H3K4me3 and anti-H4K16ac ChIP-seq. Our data show that both H3K4me3 and H4K16ac mark presents on NUP98-HOXA9 binding targets at promoters, and this is in line with the coordination role in the activities between MOF-mediated H4K16 acetylation and MLL/SET-mediated H3K4 methylation. In summary, our results confirmed that NUP98-HOXA9 and Mll1 are recruited to the same Hox loci, and this recruitment is associated with activating epigenetic marks, supporting the notion of the association between NUP98 fusions and NSL/Mll1 complex, suggesting that the recruitment of NUP98 fusions to the Hox gene loci maybe through MLL1.

2016-12-11 | GSE76001 | GEO

CRM1 Exportome and nucleocytoplasmic partition

Project description:CRM1 mediates one of the major nuclear export pathways with the broadest range of cargoes. So far, more than 100 structurally and functionally diverse CRM1 cargoes have been described. We employed affinity purification mass spectrometry for in depth characterization of CRM1 "exportome" in three model systems and we identified surprisingly large numbers, namely >700 export substrates from the yeast S. cerevisiae, ≈ 1000 from Xenopus oocytes and >1050 from human cells.I. Futher, we quantified the partitioning of ≈9600 proteoforms between nucleus and cytoplasm of Xenopus oocytes.

2016-01-04 | PXD002899 | Pride

CRM1 inhibitor anti-tumor activity is enhanced with salicylates by S-phase arrest and impaired DNA-damage repair

Project description:Chromosome region maintenance protein1 (CRM1) mediates protein export from the nucleus and is a new target for anti-cancer therapeutics. Broader application of KPT-330 (Selinexor), a CRM1 inhibitor approved for myeloma, has been limited by toxicity. We found that combining choline salicylate (CS) with low-doses of KPT-330 (K+CS) had potent synergistic activity across blood and solid organ cancers ex-vivo and in-vivo. Mechanistically, K+CS enhances CRM1 degradation, induces potent inhibition of CRM1 mediated nuclear export, and arrests cells in S-phase with simultaneous reduction of Rad51 causing impaired DNA damage repair. K+CS represents a potential new class of therapy for multiple cancer types.

2020-10-28 | GSE160186 | GEO

Gene expression profiling of human DLD-1 cells after block of CRM1 receptor with Leptomycin B inhibitor.

Project description:We used RNA-seq approach to define a contribution of mammalian export receptor CRM1 (Chromosomal Maintenance 1 or Exportin 1) into Tpr-dependent export of RNA molecules from the nucleus to the cytoplasm. Basket nucleoporin Tpr was AID-tagged and depleted through Auxin Induced Degradation system. Loss of Tpr led to rapid changes in gene expression profile, and gene expression changes were compared to GANP, NXF1, RanGAP1 (GSE132363) and CRM1 loss and inhibition, respectively. Altogether, we found a minimal subset of RNAs that are controlled both by Tpr nucleoporin and CRM1 receptor.

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Phase Separation by the NUP98-HOXA9 Fusion Oncoprotein Drives an Oncogenic Phenotype in Hematopoietic Cells

Project description:RNA-seq of mouse hematopoietic stem and progenitor cells expressing NUP98-HOXA9 (NHX9) show upregulation of HOX and other NUP98 fusion target genes, but expression changes are dampened or lost with the introduction of mutations in NUP98's FG repeats or HOXA9's DNA binding domain

2021-10-13 | GSE185621 | GEO

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