Transcriptomics

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MTORC2-mediated cell-cell interaction promote BMP4-induced WNT activation and mesoderm differentiation


ABSTRACT: The mechanistic target of rapamycin complex 2 (mTORC2) is essential for embryonic development but the underlying molecular mechanisms remain unclear. Here we show that disruption of mTORC2 in human embryonic stem cells (hESCs) considerably alters the balance of Rho/Rac signaling and reduces cell adhesion. Although these changes have no clear effect on their self-renewal and the expression of pluripotent markers, they significantly impede BMP-induced activation of canonical WNT genes, leading to impaired mesendoderm differentiation. Direct activation of the downstream WNT pathway by inhibiting GSK3 dramatically improves mesendoderm differentiation in mTORC2-deficient hESCs. Our studies uncover a new mechanism by which mTORC2 regulates cell fate determination and link the intercellular contacts with the activation of WNT genes.

ORGANISM(S): Homo sapiens

PROVIDER: GSE243723 | GEO | 2023/11/06

REPOSITORIES: GEO

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