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Related Experiment Video

Updated: May 22, 2025

Analyzing Craniofacial Morphogenesis in Zebrafish Using 4D Confocal Microscopy

Analyzing Craniofacial Morphogenesis in Zebrafish Using 4D Confocal Microscopy

Published on: January 30, 2014

Functional role for Taz during hindbrain ventricle morphogenesis.

Renée Dicipulo¹, Lyndsay G Selland¹, Rowan G Carpenter¹

¹Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada.

|March 13, 2025

Summary

The transcriptional co-activator Taz is essential for hindbrain ventricle development. Its absence disrupts cell polarity and midline separation, crucial for brain ventricle formation in zebrafish.

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The Mouse Hindbrain As a Model for Studying Embryonic Neurogenesis

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Published on: January 29, 2018

Area of Science:

Neuroscience
Developmental Biology
Cell Biology

Background:

The brain ventricle system is vital for nutrient circulation, waste removal, and neural tissue protection.
Hindbrain ventricle formation depends on coordinated factors, with Taz (WWTR1) previously linked to proliferation at rhombomere boundaries.

Purpose of the Study:

To investigate the role of Taz (WWTR1) in hindbrain ventricle development.
To elucidate the molecular mechanisms underlying Taz-mediated ventricle formation.

Main Methods:

Utilized zebrafish embryos to study hindbrain ventricle development.
Analyzed cytoskeletal F-actin and apicobasal polarity components in Taz-deficient embryos.
Investigated Wnt-Hippo signaling crosstalk at hindbrain rhombomere boundaries.

Main Results:

Zebrafish lacking Taz protein exhibit failed midline separation of the hindbrain ventricle.
Ventricle defects are associated with disorganized F-actin and disrupted apicobasal polarity.
Identified active Wnt-Hippo signaling crosstalk at hindbrain rhombomere boundaries.

Conclusions:

Taz (WWTR1) is a critical regulator of hindbrain ventricle development.
Taz stabilization at rhombomere boundaries promotes cell polarity essential for ventricle formation.
Proposes a model of Taz-mediated regulation of brain ventricle development.