Hhex and Cer1 Mediate the Sox17 Pathway for Cardiac Mesoderm Formation in Embryonic Stem Cells

ABSTRACT: Cardiac muscle differentiation in vivo is guided by sequential growth factor signals, including endoderm-derived diffusible factors, impinging on cardiogenic genes in the developing mesoderm. Previously, by RNA interference in AB2.2 mouse embryonic stem cells (mESCs), we identified the endodermal transcription factor Sox17 as essential for Mesp1 induction in primitive mesoderm and subsequent cardiac muscle differentiation. However, downstream effectors of Sox17 remained to be proven functionally. In this study, we used genome-wide profiling of Sox17-dependent genes in AB2.2 cells, RNA interference, chromatin immunoprecipitation, and luciferase reporter genes to dissect this pathway. Sox17 was required not only for Hhex (a second endodermal transcription factor) but also for Cer1, a growth

ORGANISM(S): Mus musculus

SUBMITTER: Michael Schneider 

PROVIDER: E-GEOD-71528 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress