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Alterations of splicing and gene expression in DMSO or 4OHT treated-IMR90 ER:HRAS G12V cells upon knockdown of SF3B1 and RBM39

ABSTRACT: The goal of this study was to analyse changes of splicing and gene expression induced in IMR90 Control and IMR90 RAS (HRASG12V) cells upon knockdown of splicing factors SF3B1 and RBM39

ORGANISM(S): Homo sapiens

PROVIDER: GSE297268 | GEO | 2026/02/15

REPOSITORIES: GEO

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Alterations of splicing and gene expression in IMR90 Control cells and IMR90 RAS cells upon knockdown of SF3B1.

Project description:The goal of this study was to analyse changes of splicing and gene expression induced in IMR90 Control and IMR90 RAS (HRASG12V) cells upon knockdown of splicing factor SF3B1.

2026-02-15 | GSE209624 | GEO

Gene expression data from IMR90 Control, IMR90 HRAS-G12V, IMR90 HRAS-G12V+shDOT1L, IMR90 DOT1L Overexpression

Project description:Gene expression data from IMR90 Control, IMR90 HRAS-G12V, IMR90 HRAS-G12V+shDOT1L, IMR90 DOT1L Overexpression

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Gene expression data from IMR90 Control, IMR90 HRAS-G12V, IMR90 HRAS-G12V+shDOT1L, IMR90 DOT1L Overexpression

Project description:Oncogene-induced senescent cells display a robust change in their epigenome and have increased transcription and secretion of numerous pro-inflammatory cytokines and chemokines termed the senescence-associated secretory phenotype (SASP). Therefore, understanding how and if the epigenome is involved in regulating the transcription of the SASP is critical to understanding how to restrain the harmful effects of the SASP. The active histone marks H3K79me2 and H3K79me3 and their methyltransferase DOT1L are increased during oncogene-induced senescence. Whether H3K79 methylation and DOT1L expression are involved in the transcriptional regulation of the SASP is unknown.

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ChIP-Seq data from IMR90 Control and IMR90 HRAS-G12V using an H3K79me3 antibody

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Global Regulation of Alternative RNA Splicing by the SR-Rich Protein RBM39

Project description:RBM39 is extensively involved in alternative splicing of RNA and helps regulate transcript levels. RBM39 may modulate alternative splicing similarly to U2AF65 by either directly binding to RNA or recruiting other splicing factors, such as U2AF65.

2016-09-13 | GSE86846 | GEO

Global Regulation of Alternative RNA Splicing by the SR-Rich Protein RBM39 CLIP-seq

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Exceptional response of high-risk neuroblastoma to RBM39 degrader Indisulam (RNA-Seq)

Project description:Indisulam selectively bridges splicing factor RBM39 to DCAF15 for proteasomal degradation. However, clinical trials indicate that patient stratification based upon the mechanism of action of indisulam may be required to achieve the best response. Here we show that neuroblastoma, a MYC-driven cancer characterized by splicing dysregulation, requires RBM39 for survival, expresses high levels of DCAF15 among different solid tumor lineages, and is the most sensitive cancer lineage to indisulam that achieves therapeutic effect by specifically targeting RBM39 in neuroblastoma. Genetic depletion or proteasomal degradation of RBM39 by indisulam induces drastic splicing event changes in neuroblastoma cells. Through specifically targeting RBM39, indisulam induces exceptional tumor response in multiple high-risk neuroblastoma models. Collectively we demonstrate that high RBM39 dependency and high-level expression of DCAF15 provide indisulam a more efficacious therapeutic window to treating high-risk neuroblastoma.

2021-11-24 | GSE164505 | GEO

Exceptional response of high-risk neuroblastoma to RBM39 degrader Indisulam (ATAC-Seq)

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Transcriptome analysis of skeletal muscle tissue from Hras G12V mutant mice

Project description:Costello syndrome (CS) is a congenital disorder caused by heterozygous activating germline HRAS mutations in the canonical Ras/mitogen-activated protein kinase (Ras/MAPK) pathway. CS is one of the RASopathies, a large group of syndromes due to mutations within various components of the Ras/MAPK pathway. An important part of the phenotype that greatly impacts quality of life is hypotonia. To gain a better understanding of the mechanisms underlying hypotonia in CS, a mouse model with an activating HrasG12V allele was utilized. We identified a skeletal myopathy that was due in part to an inhibition of embryonic myogenesis and myofiber formation, resulting in a reduction of myofiber size and number that led to reduced muscle mass and strength. In addition to hyperactivation of the Ras/MAPK and PI3K/AKT pathways, there was a significant reduction of p38 signaling, as well as global transcriptional alterations consistent with the myopathic phenotype. Inhibition of Ras/MAPK pathway signaling using a MEK inhibitor rescued the HrasG12V myopathy phenotype both in vitro and in vivo, demonstrating that increased MAPK signaling is the main cause of the muscle phenotype in CS.

2021-11-16 | GSE187493 | GEO

MORC2 regulates RBM39-mediated CDK5RAP2 alternative splicing to promote EMT and metastasis in colon cancer [shRBM39 mRNA-seq]

Project description:To investigate the role RBM39 plays in alternative splicing, we generated SW480 cell lines in which RBM39 was knocked down by shRNA.We then performed RNA-seq data for alternative splicing gene analysis.

2024-08-02 | GSE246915 | GEO

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