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Regulation of Peripheral Myelination through Transcriptional Buffering of Egr2 by an Antisense Long Non-coding RNA.
- Source :
- Cell Reports; Aug2017, Vol. 20 Issue 8, p1950-1963, 14p
- Publication Year :
- 2017
-
Abstract
- Summary Precise regulation of Egr2 transcription is fundamentally important to the control of peripheral myelination. Here, we describe a long non-coding RNA antisense to the promoter of Egr2 (Egr2-AS-RNA). During peripheral nerve injury, the expression of Egr2-AS-RNA is increased and correlates with decreased Egr2 transcript and protein levels. Ectopic expression of Egr2-AS-RNA in dorsal root ganglion (DRG) cultures inhibits the expression of Egr2 mRNA and induces demyelination. In vivo inhibition of Egr2-AS-RNA using oligonucleotide GapMers released from a biodegradable hydrogel following sciatic nerve injury reverts the EGR2-mediated gene expression profile and significantly delays demyelination. Egr2-AS-RNA gradually recruits H3K27ME3, AGO1, AGO2, and EZH2 on the Egr2 promoter following sciatic nerve injury. Furthermore, expression of Egr2-AS-RNA is regulated through ERK1/2 signaling to YY1, while loss of Ser184 of YY1 regulates binding to Egr2-AS-RNA. In conclusion, we describe functional exploration of an antisense long non-coding RNA in peripheral nervous system (PNS) biology. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 26391856
- Volume :
- 20
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Cell Reports
- Publication Type :
- Academic Journal
- Accession number :
- 124776926
- Full Text :
- https://doi.org/10.1016/j.celrep.2017.07.068