Defined conditions control the morphological dualism of rat primitive extraembryonic endoderm stem cells
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ABSTRACT: We report two chemically defined conditions that differ by the addition of the cytokine Lif and the β-catenin-stabilizing drug Chir99021 and enable permanent self-renewal as mesenchymal and epithelial morphotypes, respectively. The morphotypes are interconvertible and differentiate equipotently. Surprisingly, the proliferation of both morphotypes requires Lif/Gp130/Stat3 signaling (autocrine in the absence of added Lif) and non-canonical Wnt signaling (autocrine). Additionally, the epithelial version requires β-catenin for proliferation and morphology. Interestingly, the mesenchymal cells also express key epithelial markers, but those are improperly structured and/or not functional, indicating a primed state. The results provide an improved platform for studying the proliferation and plasticity of the early extraembryonic endoderm, which occurs in mesenchymal and epithelial forms in vivo.
ORGANISM(S): Rattus norvegicus
PROVIDER: GSE232755 | GEO | 2024/05/16
REPOSITORIES: GEO
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