Transcription of the non-coding RNA upperhand controls Hand2 expression and heart development

Kelly M. Anderson, Douglas M. Anderson, John R. McAnally, John M. Shelton, Rhonda Bassel-Duby, Eric N. Olson

Research output: Contribution to journalArticle

123 Scopus citations

Abstract

HAND2 is an ancestral regulator of heart development and one of four transcription factors that control the reprogramming of fibroblasts into cardiomyocytes. Deletion of Hand2 in mice results in right ventricle hypoplasia and embryonic lethality. Hand2 expression is tightly regulated by upstream enhancers that reside within a super-enhancer delineated by histone H3 acetyl Lys27 (H3K27ac) modifications. Here we show that transcription of a Hand2-associated long non-coding RNA, which we named upperhand (Uph), is required to maintain the super-enhancer signature and elongation of RNA polymerase II through the Hand2 enhancer locus. Blockade of Uph transcription, but not knockdown of the mature transcript, abolished Hand2 expression, causing right ventricular hypoplasia and embryonic lethality in mice. Given the substantial number of uncharacterized promoter-associated long non-coding RNAs encoded by the mammalian genome, the Uph-Hand2 regulatory partnership offers a mechanism by which divergent non-coding transcription can establish a permissive chromatin environment.

Original languageEnglish (US)
Pages (from-to)433-436
Number of pages4
JournalNature
Volume539
Issue number7629
DOIs
StatePublished - 2016

ASJC Scopus subject areas

  • Medicine(all)
  • General

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