RNA sequencing of SRSF3 depleted pluripotent cells
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE113794 | GEO | 2018/05/10
REPOSITORIES: GEO
Similar Datasets
Project description:We have independently knocked down TRA2B and SRSF3 in HEK293 cells to identify the sum of alternative splicing changes that results from depletion of each factor. Each was compared to a control transfection of the hairpin vector alone. In this set, 9 total samples were analyzed. There were three biological replicates for each of three conditions: knockdown control, TRA2B knockdown and SRSF3 knockdown. Arrays were analyzed for gene expression using GeneBase and for alternative splicing using MADS+ and OmniViewer software.
2012-04-30 | E-GEOD-36069 | biostudies-arrayexpress
Project description:RNA sequencing of SRSF3 depleted pluripotent cells
| PRJNA454002 | ENA
Project description:We have independently knocked down TRA2B and SRSF3 in HEK293 cells to identify the sum of alternative splicing changes that results from depletion of each factor. Each was compared to a control transfection of the hairpin vector alone.
2012-05-01 | GSE36069 | GEO
Project description:Signaling through the platelet-derived growth factor receptor alpha (PDGFRa) is critical for mammalian craniofacial development, though the mechanisms by which the activity of downstream intracellular effectors is regulated to mediate gene expression changes have not been defined. We find that the RNA-binding protein Srsf3 is phosphorylated at Akt consensus sites downstream of PI3K-mediated PDGFRa signaling in palatal mesenchyme cells, leading to its nuclear translocation. We further demonstrate that ablation of Srsf3 in the neural crest lineage leads to facial clefting due to defective cranial neural crest cell specification and survival. Finally, we show that Srsf3 regulates the alternative RNA splicing of transcripts encoding protein kinases in the facial process mesenchyme to negatively regulate PDGFRa signaling. Collectively, our findings reveal that PI3K/Akt-mediated PDGFRa signaling primarily modulates gene expression through alternative RNA splicing in the facial mesenchyme and identify Srsf3 as a critical regulator of craniofacial development.
2021-06-30 | GSE161510 | GEO
Project description:Serine/arginine-rich splicing factor 3 (SRSF3) functions to regulate mRNA alternative splicing, a molecular mechanism to process more than 90% of the protein-coding genes and provides an essential source for the biological versatility and targeting of SRSF3 could be a novel approach for cancer therapy. This study identify that SRSF3 expression was upregulated in pancreatic cancer tissues and associated with drug resistance and poor prognosis. Thus, we found that SRSF3 regulated ANRIL splicing and modified m6A modification of ANRIL in pancreatic cancer cells. More importantly, we demonstrated that the m6A methylation on lncRNA-ANRIL was essential for splicing process. Meanwhile, we also found that the different isoforms of ANRIL were differentially expressed in drug-resistant pancreatic cancer cell lines, and SRSF3 promotes gemcitabine resistance by regulating the expression of ANRIL-208. In addition, ANRIL-208 regulated pancreatic cancer cell chemoresistance by forming a complex with Ring1b and EZH2 and enhanced DNA homologous recombination repair (HR) capacity. In conclusion, the current study first established the link among SRSF3, m6A modification, lncRNA splicing, and DNA HR repair in pancreatic cancer, and first demonstrated that abnormal alternative splicing and m6A modification are closely related to chemotherapy resistance in pancreatic cancer.
2022-05-11 | GSE197532 | GEO
Project description:Serine/arginine-rich splicing factor 3 (SRSF3) functions to regulate mRNA alternative splicing, a molecular mechanism to process more than 90% of the protein-coding genes and provides an essential source for the biological versatility and targeting of SRSF3 could be a novel approach for cancer therapy. This study identify that SRSF3 expression was upregulated in pancreatic cancer tissues and associated with drug resistance and poor prognosis. Thus, we found that SRSF3 regulated ANRIL splicing and modified m6A modification of ANRIL in pancreatic cancer cells. More importantly, we demonstrated that the m6A methylation on lncRNA-ANRIL was essential for splicing process. Meanwhile, we also found that the different isoforms of ANRIL were differentially expressed in drug-resistant pancreatic cancer cell lines, and SRSF3 promotes gemcitabine resistance by regulating the expression of ANRIL-208. In addition, ANRIL-208 regulated pancreatic cancer cell chemoresistance by forming a complex with Ring1b and EZH2 and enhanced DNA homologous recombination repair (HR) capacity. In conclusion, the current study first established the link among SRSF3, m6A modification, lncRNA splicing, and DNA HR repair in pancreatic cancer, and first demonstrated that abnormal alternative splicing and m6A modification are closely related to chemotherapy resistance in pancreatic cancer.
2022-05-11 | GSE197352 | GEO
Project description:Serine-rich splicing factor 3 (SRSF3) was recently reported as being necessary to preserve RNA stability via an mTOR mechanism in a cardiac mouse model in adulthood. Here, we demonstrate the link between Srsf3 and mitochondrial integrity in an embryonic cardiomyocyte-specific Srsf3 conditional knockout (cKO) mouse model. Fifteen-day-old Srsf3 cKO mice showed dramatically reduced (below 50%) survival and reduced the left ventricular systolic performance, and histological analysis of these hearts revealed a significant increase in cardiomyocyte size, confirming the severe remodeling induced by Srsf3 deletion. RNA-seq analysis of the hearts of 5-day-old Srsf3 cKO mice revealed early changes in expression levels and alternative splicing of several transcripts related to mitochondrial integrity and oxidative phosphorylation. Likewise, the levels of several protein complexes of the electron transport chain decreased, and mitochondrial complex I-driven respiration of permeabilized cardiac muscle fibers from the left ventricle was impaired. Furthermore, transmission electron microscopy analysis showed disordered mitochondrial length and cristae structure. Together with its indispensable role in the physiological maintenance of mouse hearts, these results highlight the previously unrecognized function of Srsf3 in regulating the mitochondrial integrity.
2021-06-23 | GSE151168 | GEO
Project description:Alternative polyadenylation (APA) refers to the regulated selection of polyadenylation sites (PASs) in transcripts, which affects the length of their 3’ untranslated regions (3’UTRs). APA regulates stage- and tissue-specific gene expression by affecting the stability, subcellular localization or translation rate of transcripts. We have recently shown that SRSF3 and SRSF7, two closely related SR proteins, link APA to mRNA export. However, the underlying mechanism for APA regulation by SRSF3 and SRSF7 remained unknown. Here, we combined iCLIP and 3’-end sequencing to find that both proteins bind upstream of proximal PAS (pPAS), but exert opposing effects on 3’UTR length. We show that SRSF7 enhances pPAS usage in a splicing-independent and concentration-dependent manner by recruiting the cleavage factor FIP1, thereby generating short 3’UTRs. SRSF7-specific domains that are absent in SRSF3 are necessary and sufficient for FIP1 recruitment. SRSF3 promotes long 3’UTRs by maintaining high levels of the cleavage factor Im (CFIm) via alternative splicing. Using iCLIP, we show that CFIm binds before and after the pPASs of SRSF3 targets, which masks them and inhibits polyadenylation. In the absence of SRSF3, CFIm levels are strongly reduced, which exposes the pPASs and leads to shorter 3’UTRs. Conversely, during cellular differentiation, 3’UTRs are massively extended, while the levels of SRSF7 and FIP1 strongly decline. Altogether, our data suggest that SRSF7 acts as a sequence-specific enhancer of pPASs, while SRSF3 inhibits pPAS usage by controlling CFIm levels. Our data shed light on a long-standing puzzle of how one factor (CFIm) can inhibit and enhance PAS usage.
2021-09-09 | PXD018090 | Pride
Project description:Alternative polyadenylation (APA) refers to the regulated selection of polyadenylation sites (PASs) in transcripts, which determines the length of their 3’ untranslated regions (3’UTRs). APA regulates stage- and tissue-specific gene expression by affecting the stability, subcellular localization and translation rate of transcripts. We have recently shown that SRSF3 and SRSF7, two closely related SR proteins, connect APA with mRNA export. The mechanism underlying APA regulation by SRSF3 and SRSF7 remained, however, unknown. Here, we combined iCLIP, RNA-Seq and 3’-end sequencing to find that both proteins bind upstream of proximal PASs (pPASs), yet they exert opposite effects on 3’UTR length. We show that SRSF7 enhances pPAS usage in a concentration-dependent but splicing-independent manner by recruiting the cleavage factor FIP1, thereby generating short 3’UTRs. Protein domains unique to SRSF7, which are absent from SRSF3, and hypo-phosphorylation contribute to FIP1 recruitment. In contrast, SRSF3 promotes distal PAS (dPAS) usage and hence long 3’UTRs by maintaining high levels of cleavage factor Im (CFIm) via alternative splicing. Upon reduced expression of SRSF3, CFIm levels strongly decrease and 3’UTRs are globally shortened. In SRSF3-regulated transcripts, CFIm and FIP1 bind upstream of dPASs and promote their usage. Surprisingly, both factors are also recruited to pPASs under conditions where their usage is blocked, suggesting the formation of inactive cleavage complexes. Thus, we identify SRSF3 as a novel regulator of CFIm activity, provide evidence that CFIm inhibits pPAS usage and show that small differences in the domain architecture of SR proteins confer opposite effects on PAS selection.
2021-01-28 | GSE151722 | GEO
Project description:Purpose: The splicing factor SRSF3 is a member of serine- and arginine-rich proteins, which is frequently upregulated in various types of cancer. The aim of this study is to profile the alternative splicing (AS) events that were regulated by SRSF3 in glioma stem-like cells (GSCs). Methods: Total RNAs isolated from GSC83 and GSC528 cells with SRSF3-konckout (KO) or control (WT) were subjected to paired-end RNA-seq using the Illumina NextSeq 500 system according to the manufacturer's instruction. Raw reads were subjected to quality control and then aligned with HISAT2 to the human genome hg19. Quantification was performed using HTSeq-count. Differential expression of genes was calculated by DESeq2. For the splicing analysis, the mapped reads were processed through the MISO pipeline to estimate expression of alternatively spliced isoforms. The PSI (Percent Spliced In) values were calculated for each annotated AS event. Results: We identified a total of 2752 and 2548 SRSF3-regulated AS events in GSC83 and 528 cells, respectively, with 1143 events shared by these two GSC cell lines. Conclusions: Our study defines SRSF3 as a master regulator of glioma-associated AS program, implicating SRSF3 as an oncogenic factor for tumorigenesis and a potential therapeutic target for GBM treatment.
2019-09-21 | GSE130501 | GEO