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

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

PROVIDER: PRJNA185394 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR645784.fastq.gz	Fastqsanger.gz
	SRR645785.fastq.gz	Fastqsanger.gz
	SRR645786.fastq.gz	Fastqsanger.gz
	SRR645787.fastq.gz	Fastqsanger.gz
	SRR645788.fastq.gz	Fastqsanger.gz

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

2013-01-25 | GSE43308 | GEO

Identification of in vivo, conserved, TAF15 RNA binding sites and the impact of TAF15 on the neuronal transcriptome

Project description:TAF15, 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 TAF15 and the assessment of the impact of TAF15 depletion on the neuronal transcriptome. Our study uncovers regulation of splicing of sets of neuronal RNAs encoding proteins with essential roles in synaptic activities including glutamergic receptors such as zeta-1 subunit of the glutamate N-methyl-D-aspartate (NMDA) receptor (Grin1). Identification of TAF15 neuronal targets using normal human brain samples and mouse neurons. Mouse background: E14Tg2a.4 wildtype cells derived from 129P2/OlaHsd.

2013-01-24 | E-GEOD-43294 | biostudies-arrayexpress

Identification of in vivo, conserved, TAF15 RNA binding sites and the impact of TAF15 on the neuronal transcriptome

2013-01-24 | GSE43294 | GEO

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

Identification of in vivo, conserved, TAF15 RNA binding sites and the impact of TAF15 on the neuronal transcriptome

Project description:Identification of in vivo, conserved, TAF15 RNA binding sites and the impact of TAF15 on the neuronal transcriptome

| PRJNA185286 | ENA

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

2021-03-05 | E-MTAB-10104 | biostudies-arrayexpress

Cytoplasmic accumulation of FUS triggers early behavioral alterations linked to cortical neuronal hyperactivity and defects in inhibitory synapses

Project description:Purpose: Next-generation sequencing (NGS) has revolutionized systems-based analysis of cellular pathways. The goals of this study are to compare NGS-derived frontal cortex transcriptome profiling (RNA-seq) from control and a mouse of ALS-FUS. Gene mutations causing cytoplasmic mislocalization of the RNA-binding protein FUS, lead to severe forms of amyotrophic lateral sclerosis (ALS). Cytoplasmic accumulation of FUS is also observed in other diseases, with unknown consequences. Here, we show that cytoplasmic mislocalization of FUS drives behavioral abnormalities in knock-in mice, including locomotor hyperactivity and alterations in social interactions, in the absence of widespread neuronal loss. Mechanistically, we identified a profound increase in neuronal activity in the frontal cortex of Fus knock-in mice in vivo. Importantly, RNAseq analysis suggested involvement of defects in inhibitory neurons, that was confirmed by ultrastructural and morphological defects of inhibitory synapses and increased synaptosomal levels of mRNAs involved in inhibitory neurotransmission. Thus, cytoplasmic FUS triggers inhibitory synaptic deficits, leading to increased neuronal activity and behavioral phenotypes. FUS mislocalization may trigger deleterious phenotypes beyond motor neuron impairment in ALS, but also in other neurodegenerative diseases with FUS mislocalization.

2021-02-12 | GSE166615 | GEO

Drosha-dependent microRNAs modulate FUS-mediated neurodegeneration in vivo

Project description:Mutations in Fused in Sarcoma (FUS) gene cause the familial and progressive form of amyotrophic lateral sclerosis (ALS). FUS is a nuclear RNA-binding protein involved in RNA processing and the biogenesis of a specific set of microRNAs. Here we report that Drosha and two previously uncharacterized Drosha-dependent miRNAs are strong modulators of FUS expression and prevent the cytoplasmic segregation of insoluble mutant FUS in vivo. We demonstrate that depletion of Drosha mitigates FUS-mediated degeneration, survival, and motor defects in Drosophila. Mutant FUS strongly interacts with Drosha and causes its cytoplasmic mis-localization into the insoluble FUS inclusions. Reduction in Drosha levels increases the solubility of mutant FUS. Interestingly, we found two Drosha dependent microRNAs, miR-378i and miR-6832-5p, which differentially regulate the expression, solubility, and cytoplasmic aggregation of mutant FUS in iPSC neurons and mammalian cells. More importantly, we report different modes of action of these miRNAs against mutant FUS. Whereas miR-378i may regulate mutant FUS inclusions by preventing G3BP-mediated stress granule formation, miR-6832-5p may affect FUS expression via other proteins or pathways. Overall, our research reveals a possible association between ALS-linked FUS mutations and the Drosha-dependent miRNA regulatory circuit, as well as a useful perspective on potential ALS treatment via microRNAs.

2023-09-09 | GSE242360 | GEO

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