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STAU2 Binds a Complex RNA Cargo that Changes Temporally With Production of Diverse Intermediate Progenitors During Mouse Corticogenesis

ABSTRACT: STAU2 Binds a Complex RNA Cargo that Changes Temporally With Production of Diverse Intermediate Progenitors During Mouse Corticogenesis

PROVIDER: PRJNA685855 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13263809.fastq.gz	Fastqsanger.gz
	SRR13263810.fastq.gz	Fastqsanger.gz
	SRR13263811.fastq.gz	Fastqsanger.gz
	SRR13263812.fastq.gz	Fastqsanger.gz
	SRR13263813.fastq.gz	Fastqsanger.gz

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STAU2 Binds a Complex RNA Cargo that Changes Temporally With Production of Diverse Intermediate Progenitors During Mouse Corticogenesis

Project description:The double-stranded RNA binding protein (RBP) STAU2 displays temporally regulated associations with RNA determinants that contribute to IPC and cortical lamination during corticogenesis.

2021-07-22 | GSE163378 | GEO

STAU2 binds a complex RNA cargo that changes temporally with production of diverse intermediate progenitor cells during mouse corticogenesis.

Project description:STAU2 is a double-stranded RNA-binding protein enriched in the nervous system. During asymmetric divisions in the developing mouse cortex, STAU2 preferentially distributes into the intermediate progenitor cell (IPC), delivering RNA molecules that can impact IPC behavior. Corticogenesis occurs on a precise time schedule, raising the hypothesis that the cargo STAU2 delivers into IPCs changes over time. To test this, we combine RNA-immunoprecipitation with sequencing (RIP-seq) over four stages of mouse cortical development, generating a comprehensive cargo profile for STAU2. A subset of the cargo was 'stable', present at all stages, and involved in chromosome organization, macromolecule localization, translation and DNA repair. Another subset was 'dynamic', changing with cortical stage, and involved in neurogenesis, cell projection organization, neurite outgrowth, and included cortical layer markers. Notably, the dynamic STAU2 cargo included determinants of IPC versus neuronal fates and genes contributing to abnormal corticogenesis. Knockdown of one STAU2 target, Taf13, previously linked to microcephaly and impaired myelination, reduced oligodendrogenesis in vitro. We conclude that STAU2 contributes to the timing of corticogenesis by binding and delivering complex and temporally regulated RNA cargo into IPCs.

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Profiling of spatio-temporally regulated transcripts during cerebral corticogenesis in the mouse

Project description:The cerebral cortex plays an important role in cognitive function and specialized perception in mammals and its development requires highly specific spatio-temporal control of gene expression. The study identified stage- and region-specific markers throughout cerebral corticogenesis at various important stages of cerebral cortex development; embryonic day (E) 15.5, E17.5, postnatal day (P) 1.5 and 4-6 months old. The study involved the analysis of 12 SAGE libraries, which were generated from the mouse cerebral cortex of E15.5 (n=3), E17.5 (n=2), P1.5 (n=1) and 4-6 month old (n=6). N denotes biological replicates.

2009-09-25 | E-GEOD-15031 | biostudies-arrayexpress

Stau2 RIP-Chip in Mouse E13-14 Cortex

Project description:The double-stranded RNA binding protein Staufen2 (Stau2) is asymmetrically localized and segregated during asymmetric cell divisions in the developing mouse cortex and promotes intermediate progenitor cell fate. We carry out RNA immunoprecipitation with a Stau2 specific antibody, followed by microarray analysis to identify Stau2 assoicated RNAs that may be shuttled asymmetrically into one daughter cell thus affecting cell fate. Cortex was dissected from E13-14 timed-pregnant Swiss Webster Mice (Taconic) and RNA immunoprecipitation followed by microarray analysis was carried out to identy Stau2 associated RNA cargos.

2012-12-21 | E-GEOD-38222 | biostudies-arrayexpress

Stau2 RIP-Chip in Mouse E13-14 Cortex

2012-12-21 | GSE38222 | GEO

Stau2 knockdown in human bcCML cells (K562)"

Project description:STAU2 knockdown in human K562 cells

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Profiling of spatio-temporally regulated transcripts during cerebral corticogenesis in the mouse

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Benchmarking brain organoid recapitulation of fetal corticogenesis

Project description:Brain organoids (BO) enabled the investigation of human corticogenesis in-vitro with an increasing range of protocols achieving its remarkable recapitulation. However, we lack a resource gathering fetal cortex-specific gene co-expression patterns and their behavior in BO. We complement the current knowledge with a benchmarking of BO versus human corticogenesis, integrating: transcriptomes from in-house differentiated cortical BO (CBO), in-house processed human fetal brain samples, analysis of transcriptomes from different BO systems and of pre-natal cortical samples from the BrainSpan Atlas.

2022-12-31 | E-MTAB-11239 | biostudies-arrayexpress

Sequencing of RNA Isolated Through RNA Immunoprecipitation (RIP) of Murine Cortical Tissue Using STAU2 Antibody

Project description:We report here the sequencing and analysis of RNA isolated through RNA immunoprecipitation (RIP) of embryonic mouse cortical tissue. STAU2 antibodies were used to perform these RIPs at four different ages, and the RNA was compared against matching input samples. This allowed characterization of putative STAU2 binding sites in different RNA classes over the course of development, important as STAU2 is a known double-stranded RNA binding protein with a role in asymmetric division of neural progenitor cells.

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Altered Glutamate Receptor Ionotropic Delta Subunit 2 expression in Stau2 deficient cerebellar Purkinje cells in the adult brain

Project description:Staufen2 (Stau2) is an RNA-binding protein that is involved in dendritic spine morphogenesis and function. Several studies have recently investigated the role of Stau2 in the regulation of its neuronal target mRNAs, with particular focus on the hippocampus. Here, we provide evidence for Stau2 expression and function in cerebellar Purkinje cells. We show that Stau2 downregulation (Stau2GT) lead to an increase of the glutamate receptor ionotropic delta subunit 2 (GluD2) in Purkinje cells when animals performed physical activity by voluntary wheel running. Furthermore, Stau2GT mice showed lower performance in motor coordination assays but enhanced motor learning abilities, concomitantly with an increase in dendritic GluD2 expression. Together, our results suggest a novel role of Stau2 in Purkinje cell synaptogenesis in the mouse cerebellum

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