First Author | Blinka S | Year | 2016 |
Journal | Cell Rep | Volume | 17 |
Issue | 1 | Pages | 19-28 |
PubMed ID | 27681417 | Mgi Jnum | J:333571 |
Mgi Id | MGI:6869437 | Doi | 10.1016/j.celrep.2016.09.002 |
Citation | Blinka S, et al. (2016) Super-Enhancers at the Nanog Locus Differentially Regulate Neighboring Pluripotency-Associated Genes. Cell Rep 17(1):19-28 |
abstractText | Super-enhancers are tissue-specific cis-regulatory elements that drive expression of genes associated with cell identity and malignancy. A cardinal feature of super-enhancers is that they are transcribed to produce enhancer-derived RNAs (eRNAs). It remains unclear whether super-enhancers robustly activate genes in situ and whether their functions are attributable to eRNAs or the DNA element. CRISPR/Cas9 was used to systematically delete three discrete super-enhancers at the Nanog locus in embryonic stem cells, revealing functional differences in Nanog transcriptional regulation. One distal super-enhancer 45 kb upstream of Nanog (-45 enhancer) regulates both nearest neighbor genes, Nanog and Dppa3. Interestingly, eRNAs produced at the -45 enhancer specifically regulate Dppa3 expression by stabilizing looping of the -45 enhancer and Dppa3. Our work illustrates that genomic editing is required to determine enhancer function and points to a method to selectively target a subset of super-enhancer-regulated genes by depleting eRNAs. |