The long non-coding RNA Dali is an epigenetic regulator of neural differentiation
- University of Oxford, United Kingdom
- Oxford University, United Kingdom
- University of Bath, United Kingdom
Abstract
Many intergenic long noncoding RNA (lncRNA) loci regulate the expression of adjacent protein coding genes. Less clear is whether intergenic lncRNAs commonly regulate transcription by modulating chromatin at genomically distant loci. Here, we report both genomically local and distal RNA-dependent roles of Dali, a conserved central nervous system expressed intergenic lncRNA. Dali is transcribed downstream of the Pou3f3 transcription factor gene and its depletion disrupts the differentiation of neuroblastoma cells. Locally, Dali transcript regulates transcription of the Pou3f3 locus. Distally, it preferentially targets active promoters and regulates expression of neural differentiation genes, in part through physical association with the POU3F3 protein. Dali interacts with the DNMT1 DNA methyltransferase in mouse and human and regulates DNA methylation status of CpG island-associated promoters in trans. These results demonstrate, for the first time, that a single intergenic lncRNA controls the activity and methylation of genomically distal regulatory elements to modulate large-scale transcriptional programmes.
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Animal experimentation: All animal experiments were conducted in accordance to schedule one UK Home Office guidelines (Scientific Procedures Act, 1986).
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© 2014, Chalei et al.
This article is distributed under the terms of the Creative Commons Attribution License permitting unrestricted use and redistribution provided that the original author and source are credited.
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The long non-coding RNA Dali is an epigenetic regulator of neural differentiation
eLife 3:e04530.
https://doi.org/10.7554/eLife.04530
