The study of alternative splicing events in human induced pluripotent stem cells from a Down's syndrome patient
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ABSTRACT:
PROVIDER: PRJNA706030 | ENA |
REPOSITORIES: ENA
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Project description:This SuperSeries is composed of the following subset Series: GSE23513: Position-dependent alternative splicing activity revealed by global profiling of alternative splicing events regulated by PTB (HJAY) GSE23514: Position-dependent alternative splicing activity revealed by global profiling of alternative splicing events regulated by PTB (Exon array) Refer to individual Series
2010-09-01 | E-GEOD-23522 | biostudies-arrayexpress
Project description:This SuperSeries is composed of the following subset Series: GSE30429: Gene Array Analyzer (GAA): Alternative usage of gene arrays to study alternative splicing events (MoGene array) GSE32998: Gene Array Analyzer (GAA): Alternative usage of gene arrays to study alternative splicing events (MoEx array) Refer to individual Series
2011-11-28 | E-GEOD-33183 | biostudies-arrayexpress
Project description:We employed the GeneChip Human Transcriptome Array 2.0 (HTA 2.0) for the global gene analysis with hiPSCs from DS and healthy individuals. Examining differentially expressed genes (DEGs) in these groups and focusing on specific transcripts with Alternative Splicing.
2021-03-28 | GSE168111 | GEO
Project description:Alternative splicing is a molecular process that contributes greatly to the diversification of proteome and to gene functions. Understanding the mechanisms of stage-specific alternative splicing can provide a better understanding of the development of eukaryotes and the functions of different genes. Schistosoma japonicum is an infectious blood-dwelling trematode with a complex lifecycle that causes the tropical disease schistosomiasis. In this study, we analyzed the transcriptome of Schistosoma japonicum to discover alternative splicing events in this parasite, by applying RNA-seq to cDNA library of adults and schistosomula. Results were validated by RT-PCR and sequencing. We found 11,623 alternative splicing events among 7,099 protein encoding genes and average proportion of alternative splicing events per gene was 42.14%. We showed that exon skip is the most common type of alternative splicing events as found in high eukaryotes, whereas intron retention is the least common alternative splicing type. BioProject accession number is PRJNA290970, and the SRA Study accession number is SRP061588. Mixed sample of cDNA libaraies of Schistosomula and adult were sequenced using Illumina HiSeq2000.
2015-09-06 | E-GEOD-71722 | biostudies-arrayexpress
Project description:We used Affymetrix GeneChipM-BM-. Human Exon 1.0 ST Arrays to identify alternative splicing events in 15 samples of PDAC compared to 6 non-tumor samples. Several commercial and open source software approaches for the analysis of differential splicing were tested and a subset of overlapping results was validated using RT-PCR and sequencing. Splicing variants could be validated in several genes closely related to cancer. Pathway analysis of genes predicted to be alternatively spliced revealed an enrichment of genes in categories closely related to cell-cell interactions and kinase activity. 15 samples of pancreatic ductal adenocarcinoma and 6 non tumor pancreatic samples were analyzed for alternative splicing events
2013-08-01 | E-GEOD-23397 | biostudies-arrayexpress
Project description:Background The complete sequencing of the human genome and its subsequent analysis revealed a predominant role for alternative splicing in the generation of proteome diversity. Splice switching oligonucleotides (SSOs) are a powerful and specific tool to experimentally control alternative splicing of endogenous messenger RNAs in living cells. SSOs also have therapeutic potential to treat diseases that are caused by aberrant splicing. The assignment of biological roles to alternative splicing events of currently unknown function promises to provide a largely untapped source of potential new therapeutic targets. Here we have developed a protocol that combines high sensitivity microarrays with the transfection of SSOs to monitor global changes in gene expression downstream of alternate, endogenous splice events. Findings When applied to a well-characterized splicing event in the Bcl-x gene, the application of high sensitivity microarrays revealed a link between the induction of the Bcl-xS isoform and the repression of genes involved in protein synthesis. Conclusions The strategy introduced herein provides a useful approach to define the biological impact of any given alternative splicing event on global gene expression patterns. Furthermore, our data provide the first link between Bcl-xS expression and the repression of ribosomal protein gene expression. Biological triplicates, 2 conditions: control oligonucleotide, Bcl-x oligonucleotide
2008-10-02 | E-GEOD-9851 | biostudies-arrayexpress
Project description:Alternative splicing is a molecular process that contributes greatly to the diversification of proteome and to gene functions. Understanding the mechanisms of stage-specific alternative splicing can provide a better understanding of the development of eukaryotes and the functions of different genes. Schistosoma japonicum is an infectious blood-dwelling trematode with a complex lifecycle that causes the tropical disease schistosomiasis. In this study, we analyzed the transcriptome of Schistosoma japonicum to discover alternative splicing events in this parasite, by applying RNA-seq to cDNA library of adults and schistosomula. Results were validated by RT-PCR and sequencing. We found 11,623 alternative splicing events among 7,099 protein encoding genes and average proportion of alternative splicing events per gene was 42.14%. We showed that exon skip is the most common type of alternative splicing events as found in high eukaryotes, whereas intron retention is the least common alternative splicing type.
2015-09-06 | GSE71722 | GEO
Project description:Epithelial Splicing Regulatory Proteins 1 and 2 (ESRP1 and ESRP2) are recently discovered epithelial-specific RNA-binding proteins that promote splicing of the epithelial variant of the FGFR2, ENAH, CD44, and CTNND1 transcripts. To catalogue a larger set of splicing events under the regulation of the ESRPs, we profiled splicing changes induced by RNA interference-mediated knockdown of ESRP1 and ESRP2 expression in a human epithelial cell line using the splicing-sensitive Affymetrix Exon ST1.0 Arrays. Analysis of the microarray data using the previously described MADS tool resulted in the identification of over a hundred candidate ESRP-regulated splicing events. We were able to independently validate 37 of these targets by RT-PCR. The ESRP-regulated events encompass all known types of alternative splicing events. Importantly, a number of these regulated splicing events occur in gene transcripts that encode proteins with well-described roles in the regulation of actin cytoskeleton organization, cell-cell adhesion, cell polarity, and cell migration. In sum, this work reveals a novel list of transcripts differentially spliced in epithelial and mesenchymal cells, implying that coordinated alternative splicing plays a critical role in determination of cell type identity. Keywords: control / knockdown comparison Short interfering knockdown of ESRP1 and ESRP2 in human PNT2 prostatic epithelium cells was performed as described before (Warzecha et al., 2009, Molecular Cell 33:591-601). The efficiency of ESRP1 and ESRP2 knockdown was monitored by quantitative RT-PCR as described before (Warzecha et al., 2009, Molecular Cell 33:591-601). In all cases the efficiency of the knockdown was close to 80%. We conducted Exon array profiling on RNAs from four siESRP1/2-treated samples and four siGFP controls.
2010-08-18 | E-GEOD-17468 | biostudies-arrayexpress
Project description:Splicing factor SRSF10 is known to function as a sequence-specific splicing activator. Here, we used RNA-seq coupled with bioinformatics analysis to identify the extensive splicing network regulated by SRSF10 in chicken cells. We found that SRSF10 promoted both exon inclusion and exclusion. Functionally, many of SRSF10-verified alternative exons are linked to pathways of stress and apoptosis. Importantly, reconstituted SRSF10 in knockout cells recovered wild-type splicing patterns and considerably rescued the stress-related defects. Together, our results provide mechanistic insight into SRSF10-regulated alternative splicing events in vivo and demonstrate that SRSF10 plays a crucial role in cell survival under stress conditions. RNA-seq for wide type (WT) and SRSF10-deficient (KO) chicken DT40 cells
2014-01-22 | E-GEOD-53354 | biostudies-arrayexpress
Project description:Epithelial Splicing Regulatory Proteins 1 and 2 (ESRP1 and ESRP2) are recently discovered epithelial-specific RNA-binding proteins that promote splicing of the epithelial variant of the FGFR2, ENAH, CD44, and CTNND1 transcripts. To catalogue a larger set of splicing events under the regulation of the ESRPs, we profiled splicing changes induced by RNA interference-mediated knockdown of ESRP1 and ESRP2 expression in a human epithelial cell line using the splicing-sensitive Affymetrix Exon ST1.0 Arrays. Analysis of the microarray data using the previously described MADS tool resulted in the identification of over a hundred candidate ESRP-regulated splicing events. We were able to independently validate 37 of these targets by RT-PCR. The ESRP-regulated events encompass all known types of alternative splicing events. Importantly, a number of these regulated splicing events occur in gene transcripts that encode proteins with well-described roles in the regulation of actin cytoskeleton organization, cell-cell adhesion, cell polarity, and cell migration. In sum, this work reveals a novel list of transcripts differentially spliced in epithelial and mesenchymal cells, implying that coordinated alternative splicing plays a critical role in determination of cell type identity. Keywords: control / knockdown comparison
2009-08-15 | GSE17468 | GEO