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| Title / Description | MicroRNAs control the apoptotic threshold in primed pluripotent stem cells through regulation of BIM |
| Accession | GSE61157 |
| Summary | Mammalian primed pluripotent stem cells have been shown to be highly susceptible to cell death stimuli due to their low apoptotic threshold, but how this threshold is regulated remains largely unknown. Here we identify miRNA-mediated regulation as a key mechanism controlling apoptosis in the post-implantation epiblast. Moreover, we find that three miRNA families, miR-20, miR-92 and miR-302, control the mitochondrial apoptotic machinery by fine-tuning the levels of expression of the pro-apoptotic protein BIM. These families therefore represent an essential buffer needed to maintain cell survival in stem cells that are not only primed for differentiation but also for cell death. We used microarrays to compare the gene expression profiles of Dicer conditional Epiblast stem cells (Dicer fx/fx EpiSCs, used as control cells) and Dicer deleted epiblast stem cells (Dicer-/- EpiSCs) five days after the induction of Dicer deletion |
| Organism | Mus musculus |
| Platform | GPL6246 |
| Normalized | False |
| Parsed SOFT file |
| Differential expression method | Characteristic Direction |
| Cutoff | 500 |
| Cell | Stem Cell |
| Perturbation | Tamoxifen |
| Disease | Cell Apoptosis |
| Principal Component Analysis | |
| Hierarchical clustering |
| Gene lists | Enrichr | L1000CDS2 | PAEA | |
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