YAP1 and QSER1 are Key Modulators of Embryonic Signaling Pathways in the Mammalian Epiblast.

ABSTRACT: YAP1 signaling is essential for development but its specific roles in early embryogenesis remain poorly understood. To shed light on this, we analyzed YAP1's role in regulating the pluripotency of the mammalian epiblast, using scRNAseq approaches. Conditional deletion of Yap1 in the mouse epiblast (Sox2-Cre) altered the expression of signaling genes, including Nodal, Wnt3, and Fgf8. Accordingly, Yap1 loss led to enhanced differentiation of the epiblast toward primitive streak lineages, as evidenced by the upregulation of T/Brachyury and Eomes genes. Furthermore, a proximity labeling assay in human pluripotent stem cells, followed by biochemical assays and molecular modeling predictions, revealed that YAP1 cooperates with QSER1 protein

SUBMITTER: Abraham E 

PROVIDER: S-EPMC12262321 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature