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Fibrillarin RIP-seq in PA1 cells

ABSTRACT: We have used fibrillarin RIP-seq to explore snoRNA related transcripts in PA1 cells.

ORGANISM(S): Homo sapiens

PROVIDER: GSE85852 | GEO | 2016/10/13

SECONDARY ACCESSION(S): PRJNA339551

REPOSITORIES: GEO

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Homo sapiens

Project description:Fibrillarin RIP-seq in PA1 cells

| PRJNA339551 | ENA

RNA-seq analysis of mRNAs immunoprecipitated by wild-type (WT) or phospho-mimetic (S200D) FLAG-LIN28A in PA1 cells

Project description:To explore the effect of LIN28 (S200) phosphorylation on LIN28's association with mRNAs on a transcriptome-wide scale, we performed mRNA-seq on RNAs immunoprecipitated (RIP-seq) by wild-type (WT) or phospho-mimetic (S200D) LIN28 in PA1 cells.

2016-10-28 | GSE83905 | GEO

PA1-regulated genes in mouse embryonic fibroblast

Project description:PA1 has been identified as a component of a MLL3/4-containing histone methyltransferase complex. PA1 directly interacts with PTIP but not with other complex components. Since biological functions of PA1 are unknown, we used microarrays to determine which genes are regulated by PA1. To identify PA1-regulated genes, immortalized PA1 conditional knockout PA1loxP/loxP MEFs were infected with retroviruses expressing either Cre recombinase or vector alone. We prepared duplicated RNAs from either vector or Cre infected cells (PA1+/+ or PA1-/-) for 4 affymetrix microarrays.

2013-12-31 | E-GEOD-20157 | biostudies-arrayexpress

PA1-regulated genes in mouse embryonic fibroblast

2013-12-31 | GSE20157 | GEO

Genome-wide maps of PA1-bound sites in mice Sertoli cells

Project description:Blood-testis barrier (BTB) is essential to the microenvironment of spermatogenesis, and Sertoli cells provide the cellular basis for BTB construction. Numerous nuclear transcription factors have been identified to be vital for the proper functions of Sertoli cells. PA1 has been reported to play important roles during diverse biological processes, while its potential function in male reproduction is still unknown. Here, we show that PA1 was highly expressed in human and mouse testis and predominantly localized in the nuclei of Sertoli cells. Sertoli cell-specific Pa1 knockout resulted in azoospermia-like phenotype in mice. The knockout of this gene lead to multiple defects in spermatogenesis, such as the disorganization of cytoskeleton at basal and apical ectoplasmic specialization and the disruption of the BTB. Further transcriptomic analysis together with Cut-Tag results of PA1 in Sertoli cells revealed that PA1 could affect the expression of a subset of genes which are essential for the normal functions of Sertoli cells including those genes associated with actin organization and cellular junction such as Connexin43 (Cx43). We further demonstrated that the expression of Cx43 depended on the interaction between JUN, one of the AP-1 complex transcription factors, and PA1. Overall, our findings firstly revealed that PA1 is essential to the maintaining of BTB integrity in Sertoli cells, it regulates BTB construction-related gene expression via interacting a transcription factor, thus providing a potential diagnostic or even therapeutic target for some azoospermia patients.

2022-04-13 | GSE188307 | GEO

Transcriptional profiles of PA1 teratoma cells transfected by RIPK1, RIPK2, RIPK3, or RIPK4

Project description:RIPK4 but not the related kinases RIPK1, RIPK2, and RIPK3 caused similar transcriptional changes to Wnt3a. PA1 cells were transfected by 8ug RIPK1, RIPK2, RIPK3, or RIPK4 for 48h, RNA were extracted and sequenced.

2013-02-04 | E-GEOD-43362 | biostudies-arrayexpress

The transcriptome of Pa1-/- and Pa1F/F Sertoli cells purified from 20d-old mice testes

Project description:The blood-testis barrier (BTB) is essential to the microenvironment of spermatogenesis, and Sertoli cells provide the cellular basis for BTB construction. Numerous nuclear transcription factors have been identified to be vital for the proper functioning of Sertoli cells. PA1 has been reported to play important roles during diverse biological processes, yet its potential function in male reproduction is still unknown. Here, we show that PA1 was highly expressed in human and mouse testis and predominantly localized in the nuclei of Sertoli cells. Sertoli cell-specific Pa1 knockout resulted in an azoospermia-like phenotype in mice. The knockout of this gene led to multiple defects in spermatogenesis, such as the disorganization of the cytoskeleton during basal and apical ectoplasmic specialization and the disruption of the BTB. Further transcriptomic analysis, together with Cut-Tag results of PA1 in Sertoli cells, revealed that PA1 could affect the expression of a subset of genes that are essential for the normal function of Sertoli cells, including those genes associated with actin organization and cellular junctions such as Connexin43 (Cx43). We further demonstrated that the expression of Cx43 depended on the interaction between JUN, one of the AP-1 complex transcription factors, and PA1. Overall, our findings reveal that PA1 is essential for the maintenance of BTB integrity in Sertoli cells and regulates BTB construction-related gene expression via transcription factors. Thus, this newly discovered mechanism in Sertoli cells provides a potential diagnostic or even therapeutic target for some individuals with azoospermia.

2022-04-13 | GSE188308 | GEO