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FUS-ERG induces late-onset azacitidine resistance in AML cells

ABSTRACT: Stable Ba/F3 transfectants with FUS-ERG were repeatedly exposed with Aza in a clinical administration manner of 7-days treatment and 21-days interval to investigate Aza sensitivity. RNA-seq was performed when Aza susceptibility began to change and identified genes with altered expression or transcript variants.

ORGANISM(S): Mus musculus

PROVIDER: GSE217967 | GEO | 2022/11/21

REPOSITORIES: GEO

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FUS E18

Project description:FUS E18

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Expression profiles of primary cortical neurons after knocking down Fus

Project description:To clarify the functional properties of FUS, we established the differentially expressed alternative exons in FUS-silenced primary cortical neurons by using exon-sensitive microarray technology. We analyzed total RNA of primary cortical neuron infected with lentivirus expressing shRNA against mouse Fus or control. RNA was harvested 11 days after transfection.

2012-07-23 | E-GEOD-36153 | biostudies-arrayexpress

Mutant FUS triggers age-dependent synaptic impairment in presymptomatic ALS-FUS mice (CLIP-seq)

Project description:FUS is a primarily nuclear RNA-binding protein with important roles in RNA processing and transport. FUS mutations disrupting its nuclear localization characterize a subset of amyotrophic lateral sclerosis (ALS-FUS) patients, through an unidentified pathological mechanism. FUS regulates nuclear RNA, but its role at the synapse is poorly understood. Here, we used super-resolution imaging to determine the physiological localization of extranuclear, neuronal FUS and found it predominantly near the vesicle reserve pool of presynaptic sites. Using CLIP-seq on synaptoneurosome preparations, we identified synaptic RNA targets of FUS that are associated with synapse organization and plasticity. Synaptic FUS was significantly increased in a knock-in mouse model of ALS-FUS, at presymptomatic stages. Despite apparently unaltered synaptic organization, RNA-seq of synaptoneurosomes highlighted age-dependent dysregulation of glutamatergic and GABAergic synapses. Our study indicates that FUS relocalization to the synapse in early stages of ALS-FUS results in synaptic impairment, potentially representing an initial trigger of neurodegeneration.

2021-03-05 | E-MTAB-9211 | biostudies-arrayexpress

Mutant FUS triggers age-dependent synaptic impairment in presymptomatic ALS-FUS mice (RNA-seq)

2021-03-05 | E-MTAB-9212 | biostudies-arrayexpress

FUS KO mRNA sequencing and anti-FUS RNA immunoprecipitation sequencing

Project description:The aim of our study is to identify the role of FUS in shaping the transcriptome. RNA-seq of two FUS KO clones was performed and compared to wt; for each, four replicates were sequenced. RNA molecules associated with the FUS protein were determined by means of a RNA immuno-precipitation, followed by high-throughput sequencing. Total RNA was used as a control. SH-SY5Y cells were used for both experiments. RNA-seq: 4 wt samples, 4 A4 KO samples, 4 A5 KO samples. RIP-seq: 1 input control sample, 3 anti-FUS IP replicates.

2016-06-13 | E-GEOD-71812 | biostudies-arrayexpress

Mutant FUS triggers age-dependent synaptic impairment in presymptomatic ALS-FUS mice (RNA-seq part2)

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FUS E18

Project description:FUS E18

2012-12-12 | E-MTAB-1223 | biostudies-arrayexpress

The oncofusion protein FUS-ERG targets key hematopoietic regulators and modulates the all-trans retinoic acid signaling pathway in t(16;21) acute myeloid leukemia

Project description:Fusion proteins involving the ETS factor ERG have been associated with multiple cancers such as Ewing's sarcoma and prostate cancer. In acute myeloid leukemias harboring t(16;21) another ERG fusion protein is expressed, FUS-ERG. Here, we found that this FUS-ERG oncofusion protein acts in the context of a heptad of proteins (ERG, FLI1, GATA2, LYL1, LNMO2, RUNX1 and TAL1) central to proper expression of genes involved in maintaining a stem cell hematopoietic phenotype. Moreover, in t(16;21) FUS-ERG co-occupies genomic regions bound by the nuclear receptor heterodimer RXR-RARA inhibiting target gene expression and interfering with hematopoietic differentiation. All-Trans Retinoic Acid treatment of t(16;21) cells as well as FUS-ERG knock down alleviate the myeloid differentiation block. Together, the results suggest that FUS-ERG acts as a transcriptional repressor of the retinoic acid signaling pathway. Cell lines were used for RNA extraction for RNA-seq and ChIP experiments for ChIP-seq.

2015-06-23 | E-GEOD-60477 | biostudies-arrayexpress

Identification of in vivo, conserved, FUS RNA binding sites and the impact of FUS on the neuronal transcriptome

Project description:FUS, an RNA binding protein was recently implicated in Amyotrophic Lateral Sclerosis (ALS). ALS is a fatal neurodegenerative disease. We report the identification of the conserved neuronal RNA targets of FUS and the assessment of the impact of FUS depletion on the neuronal transcriptome. We identified that FUS regulates splicing of conserved intron containing transcripts. FUS retains or excludes the conserved intron by binding to them. Identification of FUS neuronal targets using normal human brain samples and mouse neurons

2013-01-25 | E-GEOD-43308 | biostudies-arrayexpress

Identification of FUS RNA targets in HeLa cells

Project description:We identified a landscape of FUS-binding RNA targets in HeLa cells. The majority of the FUS binding sites are in introns of pre-mRNAs and less are in exons and untranslated regions. Significant FUS binding in introns flanking cassette exons, long intron (>100kb) containing transcripts and noncoding RNAs were detected in our study. We specifically determined the function of FUS in regulating the alternative splicing of cassette exons. The top FUS-associated cassette exon is exon 7 of the pre-mRNA of FUS itself. We demonstrated that FUS is a repressor of its own exon 7 splicing. FUS autoregulates its own protein levels by exon 7 alternative splicing and nonsense mediated decay. Moreover, Amyotrophic Lateral Sclerosis (ALS) linked FUS mutants are deficient in FUS autoregulation. CLIP-seq of FUS in HeLa cells

2013-12-16 | E-GEOD-50178 | biostudies-arrayexpress

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