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Transcriptomes of miR-290-295 KO mESCs treated with siPOOLs against the transcription factor Tfap4

ABSTRACT: In order to identify direct microRNA targets in mouse embryonic stem cells (mESCs), we knocked out microRNA effector genes, profiled their transcriptomes and integrated the data with additional published OMICs data sets. To validate the analysis, we generated miR-290-295 KO mutant cell lines, assessed the transcriptome profile and compared the observed misregulation to the predictions of the analysis. We identified the transcription factor Tfap4 as novel potential direct and functional target of miR-290-295. To assess the role of Tfap4, we rescued its expression in the miR-290-295 KO cell line using siPOOLs and profiled the transcriptome.

ORGANISM(S): Mus musculus

PROVIDER: GSE181393 | GEO | 2022/07/15

REPOSITORIES: GEO

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Transcriptomes of miR-290-295 KO mESCs treated with siPOOLs for three different transcription factors and a negative control

Project description:In order to identify direct microRNA targets in mouse embryonic stem cells (mESCs), we generated miR-290-295 KO mutant cell lines, assessed their transcriptomes. We identified novel transcription factors (TF) as potential direct and functional targets of miR-290-295. To assess the role of these TFs, we rescued their expression in the miR-290-295 KO cell line using siPOOLs and profiled their transcriptomes.

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Transcriptome of miR-290-295 KO mESCs

Project description:In order to identify direct microRNA targets in mouse embryonic stem cells (mESCs), we knocked out microRNA effector genes, profiled their transcriptomes and integrated the data with additional published OMICs data sets. To validate the analysis, we generated miR-290-295 KO mutant cell lines, assessed the transcriptome profile and compared the observed misregulation to the predictions of the analysis.

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Transcriptomes of miR-290-295 KO mESCs treated with siPOOLs against the transcription factor Tfap4

Project description:Transcriptomes of miR-290-295 KO mESCs treated with siPOOLs against the transcription factor Tfap4

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Transcriptome of miR-290-295 KO mESCs

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A latent pro-survival function for the mir-290-295 cluster in mouse embryonic stem cells.

Project description:MicroRNAs (miRNAs) post-transcriptionally regulate the expression of thousands of distinct mRNAs. While some regulatory interactions help to maintain basal cellular functions, others are likely relevant in more specific settings, such as response to stress. Here we describe such a role for the mir-290-295 cluster, the dominant miRNA cluster in mouse embryonic stem cells (mESCs). Examination of a target list generated from bioinformatic prediction, as well as expression data following miRNA loss, revealed strong enrichment for apoptotic regulators, two of which we validated directly: Caspase 2, the most highly conserved mammalian caspase, and Ei24, a p53 transcriptional target. Consistent with these predictions, mESCs lacking miRNAs were more likely to initiate apoptosis following genotoxic exposure to gamma irradiation or doxorubicin. Knockdown of either candidate partially rescued this pro-apoptotic phenotype, as did transfection of members of the mir-290-295 cluster. These findings were recapitulated in a specific mir-290-295 deletion line, confirming that they reflect miRNA functions at physiological levels. In contrast to the basal regulatory roles previously identified, the pro-survival phenotype shown here may be most relevant to stressful gestations, where pro-oxidant metabolic states induce DNA damage. Similarly, this cluster may mediate chemotherapeutic resistance in a neoplastic context, making it a useful clinical target.

2011-06-18 | GSE30012 | GEO

A latent pro-survival function for the mir-290-295 cluster in mouse embryonic stem cells.

2011-06-18 | E-GEOD-30012 | biostudies-arrayexpress

Transcriptomes of miR-290-295 KO mESCs treated with siPOOLs for three different transcription factors and a negative control

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Expression analysis of OSK and Sall4+OSK reprogramming cells sorted for expression of miR-290 and/or miR-302.

2014-03-31 | GSE54341 | GEO

Expression analysis of OSK and Sall4+OSK reprogramming cells sorted for expression of miR-290 and/or miR-302.

Project description:MEFs were infected with Oct4, Sox2, Klf4 (+/- Sall4), sorted for miR-290/302 reporter expression at day 9 (OSK) or 12 (Sall4+OSK), and then profiled. Resulting iPSCs were also profiled. Mouse ES cells were differentiated and sorted for miR-290/302 reporter expression during Fgf/Activin differentiation (day 4 or day 7). Performed in biological triplicate. Biological triplicate samples represent three independent lines. Total RNA collected with Trizol. All processing conducted at the UCLA Neuroscience Genomics Core. MouseRef-8 v2.0 Expression BeadChips.

2014-03-31 | E-GEOD-54341 | biostudies-arrayexpress

Expression profiling in miR-290 6dt1 mammary tumors

Project description:mRNA expression data from mammary tumors extracted 30 days after orthotopic injection of miR-290-expressing and negative control 6dt1 cells into female FVB/N mice. At 6 weeks of age, FVB/N female mice were orthotopically injected with 1.0x10E5 6dt1 cells, either expressing miR-290 or a negative control RNA construct. 4 negative control tumors and 3 miR-290 tumors were analyzed.

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