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Related Experiment Videos

Tissue generation from amphibian animal caps.

Koji Okabayashi1, Makoto Asashima

  • 1SORST, Japan Science and Technology Corporation, The University of Tokyo, Tokyo, Japan.

Current Opinion in Genetics & Development
|October 11, 2003
PubMed
Summary

Early vertebrate development involves forming three germ layers. Animal cap assays with activin can induce mesodermal and endodermal tissues, aiding research into tissue induction and organogenesis.

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Area of Science:

  • Developmental Biology
  • Embryology
  • Molecular Biology

Background:

  • Formation of the three germ layers is a critical event in early vertebrate development.
  • Animal cap assays provide an in vitro model to study embryonic induction and differentiation.
  • Understanding tissue induction is key to understanding organ formation.

Purpose of the Study:

  • To investigate amphibian tissue differentiation using in vitro animal cap assays.
  • To explore the role of activin in inducing mesodermal and endodermal tissues.
  • To elucidate mechanisms of tissue induction and organogenesis in vertebrate development.

Main Methods:

  • Utilizing animal cap assays to culture amphibian explants.
  • Applying activin treatment to induce tissue differentiation in a dose-dependent manner.

Related Experiment Videos

  • Employing microsurgical manipulation combined with growth factor treatment.

    • Main Results:

    • Activin treatment strongly and dose-dependently induced various mesodermal and endodermal tissues.
    • Specific tissues like beating heart, pronephros, pancreas, and cartilage were successfully induced.
    • The study demonstrated the efficacy of in vitro induction systems.

    Conclusions:

    • In vitro animal cap assays effectively model in vivo embryonic induction.
    • Activin is a potent inducer of mesodermal and endodermal differentiation.
    • These systems offer valuable tools for studying vertebrate organogenesis and developmental mechanisms.