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Effect of ILF3 on translation during homeostasis and the antiviral response

ABSTRACT: Effect of ILF3 on translation during homeostasis and the antiviral response

PROVIDER: PRJNA541267 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9017270_1.fastq.gz	Fastqsanger.gz
	SRR9017270_2.fastq.gz	Fastqsanger.gz
	SRR9017271_1.fastq.gz	Fastqsanger.gz
	SRR9017271_2.fastq.gz	Fastqsanger.gz
	SRR9017272_1.fastq.gz	Fastqsanger.gz

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Effect of ILF3 on translation during homeostasis and the antiviral response

Project description:Upon detection of viral infections, cells activate the expression of type I interferons (IFNs) and pro-inflammatory cytokines to control viral dissemination. As part of their antiviral response, cells also trigger the translational shutoff response which prevents translation of viral mRNAs and cellular mRNAs in a non-selective manner. Intriguingly, mRNAs encoding for antiviral factors bypass this translational shutoff, suggesting the presence of additional regulatory mechanisms enabling expression of the self-defence genes. Here, we identified the dsRNA binding protein ILF3 as an essential host factor required for efficient translation of the central antiviral cytokine, IFNB1, and a subset of interferon-stimulated genes. By combining polysome profiling and next-generation sequencing, ILF3 was also found to be necessary to establish the dsRNA-induced transcriptional and translational programs. We propose a central role for the host factor ILF3 in enhancing expression of the antiviral defence mRNAs in cellular conditions where cap-dependent translation is compromised. In this dataset we use polysome profiling in combination with RNA-seq to investigate the effect of ILF3 on the translation of mRNAs in HeLa cells in homeostasis and the antiviral response.

2019-10-25 | GSE130742 | GEO

Effect of ILF3 depletion in HeLa cells on RNA steady state levels

2019-10-25 | GSE130595 | GEO

Bacterial sepsis triggers an antiviral response that causes translation shutdown

Project description:In response to viral pathogens, the host upregulates antiviral genes that suppress translation of viral mRNAs. However, induction of such antiviral responses may not be exclusive to viruses as the pathways lie at the intersection of broad inflammatory networks that can also be induced by bacterial pathogens. Using a model of Gram-negative sepsis, we show that propagation of kidney damage initiated by a bacterial origin ultimately involves antiviral responses that result in host translation shutdown. We determined that activation of the Eif2ak2-Eif2α axis is the key mediator of translation initiation block in late phase sepsis. Reversal of this axis mitigated kidney injury. Furthermore, temporal profiling of the kidney translatome revealed that multiple genes involved in formation of the initiation complex were translationally altered during bacterial sepsis. Collectively, our findings implicate that translation shutdown is indifferent to the specific initiating pathogen and is an important determinant of tissue injury in sepsis.

2018-11-16 | GSE122274 | GEO

Bacterial sepsis triggers an antiviral response that causes translation shutdown

2018-10-06 | GSE120877 | GEO

RIP-seq using ILF3 antibodies to reveal RNAs that binds to ILF3 protein

Project description:RNA pulldown assay showed that lncRNA UBE2CP3 could bind to ILF3 protein. In order to further verify the interaction between ILF3 and UBE2CP3, RNA Immunoprecipitation (RIP) assay was performed to identify the RNAs that binds to ILF3 protein. RIP-seq data verifies the interaction between ILF3 and UBE2CP3. Interestingly, UBE2CP3 could also binds to 3'UTR of IGFBP7 mRNA. Mechanismly, lncRNA UBE2CP3 and 3' UTR of IGFBP7 could forms an double-stranded RNA. Then, the RNA duplex could interact with the Double-Stranded RNA-Binding Protein ILF3.

2021-05-03 | GSE163815 | GEO

ILF3 contributes to the establishment of the antiviral type I interferon program

Project description:ILF3 contributes to the establishment of the antiviral type I interferon program

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Bacterial sepsis triggers an antiviral response that causes translation shutdown

Project description:Bacterial sepsis triggers an antiviral response that causes translation shutdown

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Bacterial sepsis triggers an antiviral response that causes translation shutdown

Project description:Bacterial sepsis triggers an antiviral response that causes translation shutdown

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Genome-wide binding sites of NF90/ILF3 in K562 erythroleukemia cells

Project description:We used ChIP-seq to characterize the genome-wide binding sites of NF90/ILF3 in K562 erythroleukemia cells.

2018-03-01 | E-MTAB-6042 | biostudies-arrayexpress

Rnase L reprograms translation by widespread mRNA turnover escaped by antiviral mRNAs

Project description:In response to foreign and endogenous double-stranded RNA (dsRNA), protein kinase R (PKR) and ribonuclease L (RNase L) reprogram translation in mammalian cells. PKR inhibits translation initiation through eIF2 phosphorylation, which triggers stress granule (SG) formation and promotes translation of stress responsive mRNAs. The mechanisms of RNase L-driven translation repression, its contribution to SG assembly, and its regulation of dsRNA stress-induced mRNAs are unknown. We demonstrate that RNase L drives translational shut-off in response to dsRNA by promoting widespread turnover of mRNAs. This alters stress granule assembly and reprograms translation by only allowing for the translation of mRNAs resistant to RNase L degradation, including numerous antiviral mRNAs such as IFN- . Individual cells differentially activate dsRNA responses revealing variation that can affect cellular outcomes. This identifies bulk mRNA degradation and the resistance of antiviral mRNAs as the mechanism by which RNaseL reprograms translation in response to dsRNA.

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