Correlation Engine 2.0
Clear Search sequence regions

  • activin (3)
  • amnion (5)
  • BMP4 (1)
  • callithrix (1)
  • embryogenesis (2)
  • embryos (2)
  • epiblast (5)
  • marmoset (2)
  • signals (2)
  • stem cells (1)
  • Sizes of these terms reflect their relevance to your search.

    The early specification and rapid growth of extraembryonic membranes are distinctive hallmarks of primate embryogenesis. These complex tasks are resolved through an intricate combination of signals controlling the induction of extraembryonic lineages and, at the same time, safeguarding the pluripotent epiblast. Here, we delineate the signals orchestrating primate epiblast and amnion identity. We encapsulated marmoset pluripotent stem cells into agarose microgels and identified culture conditions for the development of epiblast- and amnion-spheroids. Spatial identity mapping authenticated spheroids generated in vitro by comparison with marmoset embryos in vivo. We leveraged the microgel system to functionally interrogate the signalling environment of the post-implantation primate embryo. Single-cell profiling of the resulting spheroids demonstrated that activin/nodal signalling is required for embryonic lineage identity. BMP4 promoted amnion formation and maturation, which was counteracted by FGF signalling. Our combination of microgel culture, single-cell profiling and spatial identity mapping provides a powerful approach to decipher the essential cues for embryonic and extraembryonic lineage formation in primate embryogenesis. © 2022. Published by The Company of Biologists Ltd.


    Clara Munger, Timo N Kohler, Erin Slatery, Anna L Ellermann, Sophie Bergmann, Christopher A Penfold, Ioakeim Ampartzidis, Yutong Chen, Florian Hollfelder, Thorsten E Boroviak. Microgel culture and spatial identity mapping elucidate the signalling requirements for primate epiblast and amnion formation. Development (Cambridge, England). 2022 Oct 15;149(20)

    Expand section icon Mesh Tags

    Expand section icon Substances

    PMID: 36125063

    View Full Text