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An RNAi Screen of RNA Helicases Identifies eIF4A3 as a Regulator of Embryonic Stem Cell Identity [RNA-Seq]

ABSTRACT: An RNAi Screen of RNA Helicases Identifies eIF4A3 as a Regulator of Embryonic Stem Cell Identity [RNA-Seq]

PROVIDER: PRJNA798427 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR17657211_1.fastq.gz	Fastqsanger.gz
	SRR17657211_2.fastq.gz	Fastqsanger.gz
	SRR17657212_1.fastq.gz	Fastqsanger.gz
	SRR17657212_2.fastq.gz	Fastqsanger.gz
	SRR17657213_1.fastq.gz	Fastqsanger.gz

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An RNAi Screen of RNA Helicases Identifies eIF4A3 as a Regulator of Embryonic Stem Cell Identity [RNA-Seq]

Project description:RNA helicases are involved in multiple steps of RNA metabolism to direct their roles in gene expression, yet their functions in pluripotency control remain largely unexplored. Starting from an RNAi screen of RNA helicases, we identified that eIF4A3, a DEAD-box (Ddx) helicase component of the exon junction complex (EJC), is essential for the maintenance of embryonic stem cells (ESCs). Mechanistically, we show that eIF4A3 post-transcriptionally controls the pluripotency-related cell cycle regulators and that its depletion causes cellular differentiation via cell cycle dysregulation. Specifically, eIF4A3 is required for the efficient nuclear export of Ccnb1 mRNA, which encodes Cyclin B1, a key component of the pluripotency-promoting pathway during cell cycle progression of ESCs. Our results reveal a previously unappreciated role of eIF4A3 and its associated EJC in the post-transcriptional cell cycle control in maintaining stem cell pluripotency.

2022-12-09 | GSE193938 | GEO

An RNAi Screen of RNA Helicases Identifies eIF4A3 as a Regulator of Embryonic Stem Cell Identity [CLIP-seq]

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An RNAi Screen of RNA Helicases Identifies eIF4A3 as a Regulator of Embryonic Stem Cell Identity [Ribo-seq]

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An RNAi Screen of RNA Helicases Identifies eIF4A3 as a Regulator of Embryonic Stem Cell Identity

Project description:An RNAi Screen of RNA Helicases Identifies eIF4A3 as a Regulator of Embryonic Stem Cell Identity

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An RNAi Screen of RNA Helicases Identifies eIF4A3 as a Regulator of Embryonic Stem Cell Identity [CLIP-seq]

Project description:An RNAi Screen of RNA Helicases Identifies eIF4A3 as a Regulator of Embryonic Stem Cell Identity [CLIP-seq]

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An RNAi Screen of RNA Helicases Identifies eIF4A3 as a Regulator of Embryonic Stem Cell Identity [Ribo-seq]

Project description:An RNAi Screen of RNA Helicases Identifies eIF4A3 as a Regulator of Embryonic Stem Cell Identity [Ribo-seq]

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An RNAi screen of RNA helicases identifies eIF4A3 as a regulator of embryonic stem cell identity.

Project description:RNA helicases are involved in multiple steps of RNA metabolism to direct their roles in gene expression, yet their functions in pluripotency control remain largely unexplored. Starting from an RNA interference (RNAi) screen of RNA helicases, we identified that eIF4A3, a DEAD-box (Ddx) helicase component of the exon junction complex (EJC), is essential for the maintenance of embryonic stem cells (ESCs). Mechanistically, we show that eIF4A3 post-transcriptionally controls the pluripotency-related cell cycle regulators and that its depletion causes the loss of pluripotency via cell cycle dysregulation. Specifically, eIF4A3 is required for the efficient nuclear export of Ccnb1 mRNA, which encodes Cyclin B1, a key component of the pluripotency-promoting pathway during the cell cycle progression of ESCs. Our results reveal a previously unappreciated role for eIF4A3 and its associated EJC in maintaining stem cell pluripotency through post-transcriptional control of the cell cycle.

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eIF4A3 interactome by IP-MS in mouse ESCs

Project description:RNA helicases are involved in multiple steps of RNA metabolism to direct their roles in gene expression, yet their functions in pluripotency control remain largely unexplored. Starting from an RNAi screen of RNA helicases, we identified that eIF4A3, a DEAD-box (Ddx) helicase component of the exon junction complex (EJC), is essential for the maintenance of embryonic stem cells (ESCs). We mapped the eIF4A3 interactomes in mouse ESCs, revealing that eIF4A3 is widely involved in the post-transcriptional regulation of gene expression. Mechanistically, we show that eIF4A3 post-transcriptionally controls the pluripotency-related cell cycle regulators and that its depletion causes cellular differentiation via cell cycle dysregulation. Specifically, eIF4A3 is required for the efficient nuclear export of Ccnb1 mRNA, which encodes Cyclin B1, a key component of the pluripotency-promoting pathway during cell cycle progression of ESCs. Our results reveal a previously unappreciated role of eIF4A3 and its associated EJC in the post-transcriptional cell cycle control in maintaining stem cell pluripotency.

2023-03-11 | PXD031362 | Pride

An RNAi Screen of RNA Helicases Identifies eIF4A3 as a Regulator of Embryonic Stem Cell Identity

Project description:This SuperSeries is composed of the SubSeries listed below.

2022-12-09 | GSE194012 | GEO

RNA-Seq of control and EJC factor (EIF4A3, RBM8A, MAGOH) knockdowns in part with EIF4A3 rescue in HeLa Tet-Off cells

Project description:The exon junction complex is involved in gene expression regulation on multiple co- and post-transcriptional levels. We aimed to investigate in HeLa Tet-Off cells which gene expression alterations can be observed upon knockdown of core EJC factors (EIF4A3, RBM8A and MAGOH) or upon EIF4A3 knockdown and rescue with EIF4A3 wild type construct by using RNA-Seq analyses. The rescue construct was stably integrated into the genome using the PiggyBac transposon system. As control Luciferase (Luc) siRNA was used.

2022-05-06 | E-MTAB-10771 | biostudies-arrayexpress

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