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Gastrulation

Gastrulation establishes the three primary tissues of an embryo: the ectoderm, mesoderm, and endoderm. This developmental process relies on a series of intricate cellular movements, which in humans transforms a flat, “bilaminar disc” composed of two cell sheets into a three-tiered structure. In the resulting embryo, the endoderm serves as the bottom layer, and stacked directly above it is the intermediate mesoderm, and then the uppermost ectoderm. Respectively, these tissue strata will form...

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Related Experiment Video

Updated: Jun 4, 2026

Stem cell-like Xenopus Embryonic Explants to Study Early Neural Developmental Features In Vitro and In Vivo

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Ectodermal (Animal Cap) Layer Separations in Xenopus laevis.

Hazel L Sive, Robert M Grainger, Richard M Harland

|March 2, 2011

Summary

This summary is machine-generated.

This study details a simple protocol for separating Xenopus laevis blastula animal cap cell layers. Researchers can now easily isolate epithelial and sensorial layers for developmental studies.

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Last Updated: Jun 4, 2026

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Published on: July 28, 2020

Area of Science:

Developmental biology
Cell biology
Xenopus laevis research

Background:

The Xenopus laevis blastula animal cap has two distinct layers: the outer epithelial layer and the inner sensorial layer.
These layers possess different cell adhesion properties and developmental potentials.
Understanding layer-specific functions requires effective isolation methods.

Purpose of the Study:

To describe a straightforward protocol for separating the epithelial and sensorial cell layers of the Xenopus laevis blastula animal cap.
To facilitate further research into the distinct developmental roles and inductive responses of these cell layers.

Main Methods:

The protocol involves the dissection of an intact Xenopus embryo.
Specific techniques for separating the outer epithelial monolayer and the inner sensorial cell layer are detailed.

Main Results:

The described method allows for the efficient and easy separation of the two distinct cell layers.
The isolated layers are suitable for subsequent analyses of their developmental potential.

Conclusions:

This protocol provides a valuable tool for researchers studying early Xenopus development.
It enables the investigation of cell layer-specific behaviors and contributions to embryonic patterning.