Anterior–Posterior Patterning of Definitive Endoderm Generated from Human Embryonic Stem Cells Depends on the Differential Signaling of Retinoic Acid, Wnt-, and BMP-Signaling

Abstract excerpt

As known from model organisms, such as frog, fish, mouse, and chicken, the anterior-posterior patterning of the definitive endoderm (DE) into distinct domains is controlled by a variety of signaling interactions between the DE and its surrounding mesoderm. This includes Wnt/FGFs and BMPs in the posterior half and all-trans-retinoic acid, TGF-β-ligands, Wnt-, and BMP-inhibitors in the anterior half of the DE...

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