A tissue-specific, Gata6-driven transcriptional program instructs remodeling of the mature arterial tree.

ABSTRACT: Connection of the heart to the systemic circulation is a critical developmental event that requires selective preservation of embryonic vessels (aortic arches). However, why some aortic arches regress while others are incorporated into the mature aortic tree remains unclear. By microdissection and deep sequencing in mouse, we find that neural crest (NC) only differentiates into vascular smooth muscle cells (SMCs) around those aortic arches destined for survival and reorganization, and identify the transcription factor Gata6 as a crucial regulator of this process. Gata6 is expressed in SMCs and its target genes activation control SMC differentiation. Furthermore, Gata6 is sufficient to promote SMCs differentiation in vivo, and drive preservation of aortic arches that ought to regress. These

SUBMITTER: Losa M 

PROVIDER: S-EPMC5630260 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature