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RNA-seq of sorted KPC Sf3b1-K700E murine PDAC cells

ABSTRACT: RNA-seq of sorted KPC Sf3b1-K700E murine PDAC cells

PROVIDER: PRJNA839859 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR19308746_1.fastq.gz	Fastqsanger.gz
	SRR19308746_2.fastq.gz	Fastqsanger.gz
	SRR19308747_1.fastq.gz	Fastqsanger.gz
	SRR19308747_2.fastq.gz	Fastqsanger.gz
	SRR19308748_1.fastq.gz	Fastqsanger.gz

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RNA-seq of sorted KPC Sf3b1-K700E murine PDAC cells

Project description:We established a mouse model of KrasG12D, Trp53-/- and Sf3b1-K700E murine pancreatic cancer to elucidate the impact of the SF3B1 mutation found in human PDAC on the KPC mouse model.

2022-06-07 | GSE203339 | GEO

Chronic Lymphocytic Leukemia MEC1 SF3B1 K700E and Wild Type Cell Lines' RNA-seq after Treatment with H3B-8800 Splicing Modulator.

Project description:To study the impact of SF3B1 mutations on alternative splicing and the effect of H3B-8800 splicing modulator in wild type and SF3B1-mutant chronic lymphocytic leukemia cells, we established SF3B1 K700E MEC1 CLL isogenic cell line and carried out RNA deep sequencing in SF3B1 wild type and K700E MEC1 cell lines upon H3B-8800 treatment.

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Transcriptome analysis of SF3B1-mutation induced changes in K562 cells

Project description:Using RNA-Seq, we determined changes to gene expression and splicing on inducible expression of SF3B1-WT and SF3B1-MUT (K700E) in K562 cells. Using RNA-Seq, we determined changes to gene expression and splicing on inducible expression of SF3B1-WT and SF3B1-MUT (K700E) in K562 cells.

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Cancer-associated SF3B1-K700E mutation controls immune responses by regulating Treg function via aberrant Anapc13 splicing

Project description:Recurrent somatic mutations in spliceosome factor 3b subunit 1 (SF3B1) are identified in hematopoietic cell-derived malignancies, with SF3B1-K700E being the most common one. Here we show that Treg specific expression of SF3B1-K700E (Sf3b1K700Efl/+/Foxp3YFP-Cre) results in spontaneous autoimmune phenotypes including enlarged spleen and tissue infiltration with IFN-γ-producing CD4+ T cells. CD4+ T cells from Sf3b1K700Efl/+/Foxp3YFP-Cre mice display defective Treg differentiation and inhibitory function, which is demonstrated by failed prevention of adoptive transfer colitis by Sf3b1K700Efl/+/Foxp3YFP-Cre Tregs. Mechanically, SF3B1-K700E induces an aberrant splicing event that results in reduced expression of a cell proliferation regulator Anapc13 due to insertion a 231 bp DNA fragment to the 5’ untranslated region (UTR). Forced expression of Anapc13 gene restores the differentiation and ability of Sf3b1K700Efl/+/Foxp3YFP-Cre Tregs to prevent adoptive transfer colitis. Our results thus highlight the impact of a hematological malignancy-associated SF3B1 mutation on immune responses and indicate a potential relationship between splicing factor mutation-dysregulated immune responses and cancer development.

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Project description:The aim of this experiment was to compare the transcriptomes of SF3B1 mutant and wildtype isogenic cells at the whole cell, nuclear and cytoplasmic levels. Mutations in SF3B1 are often found in the malignant cells of patients suffering from myelodysplastic syndromes and more rarely in other cancer types. The human K-562 leukaemia cell line was modified using CRISPR/Cas9 to integrate an A>G mutation in the SF3B1 consensus coding sequence to change the 700th codon from lysine to glutamic acid (K700E). RNA-Seq was ribo-depleted and randomly primed using SMARTer® Stranded Total RNA Sample Prep Kit. Sequencing used an Illumina NextSeq.

2019-02-25 | E-MTAB-7192 | biostudies-arrayexpress

Differentially expressed genes in KPC Cxcr2 KO vs KPC mouse PDAC

Project description:Recently, Bailey et al (2016, Nature) defined four subtypes of pancreatic cancer that are associated with distinct histopathological characteristics and differential survival, namely, Squamous, Pancreatic Progenitor, Immunogenic, and ADEX (Aberrantly Differentiated Endocrine eXocrine). We set out to assess by RNASeq whether loss of CXCR2 was significantly associated with a specific PDAC subtype. Pancreatic tumors were harvested from KPC or KPC Cxcr2-/- mice at endpoint (n=5 v 5), RNA prepared, and RNASeq analysis carried out. Reads were analysed using the bcbio-nextgen framework (https://bcbio-nextgen.readthedocs.org/en/latest/). After quality control and adaptor trimming, reads were aligned to the mouse genome build (UCSC mouse mm10) using STAR. Counts for known genes were generated using the function featureCounts in the R/Bioconductor package \Rsubread\. The R/Bioconductor package edgeR was used to identify differentially expressed genes.

2018-03-31 | E-MTAB-4659 | biostudies-arrayexpress

RNA-sea of Smad4 wild-type or Smad4 knockout KPC PDAC organoids from monocultures or co-cultures with pancreatic stellate cells and RNA-seq of flow-sorted PSCs from the same co-cultures.

Project description:RNA-sequencing of flow-sorted Smad4 wild-type (WT) or Smad4 knockout (KO) KPC (i.e. KRASG12D; p53 mutant) pancreatic ductal adenocarcinoma (PDAC) organoids from monocultures or co-cultures with pancreatic stellate cells (PSCs) and RNA-sequencing of flow-sorted PSCs from the same co-cultures. We investigated changes in transcriptome in Smad4 KO KPC PDAC organoids compared to Smad4 WT KPC PDAC organoids in monoculture or in co-culture with PSCs. We also investigated the changes in transcriptome in PSCs co-cultured with Smad4 WT or Smad4 KO KPC PDAC organoids.

2024-12-02 | GSE263080 | GEO

Patient-specific MDS-RS iPSCs define the mis-spliced transcript repertoire and chromatin landscape of SF3B1-mutant HSPCs

Project description:SF3B1 K700E is the most frequent mutation in myelodysplastic syndrome (MDS), but the mechanisms by which it drives MDS pathogenesis remain unclear. We derived a panel of 18 genetically matched SF3B1 K700E- and SF3B1 WT-induced pluripotent stem cell (iPSC) lines from patients with MDS with ring sideroblasts (MDS-RS) harboring isolated SF3B1 K700E mutations and performed RNA and ATAC sequencing in purified CD34+/CD45+ hematopoietic stem/progenitor cells (HSPCs) derived from them. We developed a novel computational framework integrating splicing with transcript usage and gene expression analyses and derived a SF3B1 K700E splicing signature consisting of 59 splicing events linked to 34 genes, which associates with the SF3B1 mutational status of primary MDS patient cells. The chromatin landscape of SF3B1 K700E HSPCs showed increased priming toward the megakaryocyte- erythroid lineage. Transcription factor motifs enriched in chromatin regions more accessible in SF3B1 K700E cells included, unexpectedly, motifs of the TEAD family. TEAD expression and transcriptional activity were upregulated in SF3B1-mutant iPSC-HSPCs, in support of a Hippo pathway-independent role of TEAD as a potential novel transcriptional regulator of SF3B1 K700E cells. This study provides a comprehensive characterization of the transcriptional and chromatin landscape of SF3B1 K700E HSPCs and nominates novel mis-spliced genes and transcriptional programs with putative roles in MDS-RS disease biology.

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2023-11-30 | GSE243888 | GEO

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