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Related Experiment Videos

Pushing Yap into the Nucleus with Shear Force.

Jason Kuan Han Lai1, Didier Y R Stainier1

  • 1Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany.

Developmental Cell
|March 29, 2017
PubMed
Summary

Zebrafish blood flow activates Yap, a protein that moves into the nucleus to control genes. This process is crucial for maintaining stable blood vessels and vascular integrity.

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Area of Science:

  • Vascular biology
  • Cellular mechanotransduction
  • Developmental biology

Background:

  • Endothelial cells form blood vessels and are exposed to shear stress from blood flow.
  • The cellular response to mechanical forces is critical for tissue homeostasis and development.

Purpose of the Study:

  • To investigate the role of Yap in the endothelial response to blood flow.
  • To understand the molecular mechanisms by which blood flow influences vascular stability.

Main Methods:

  • Zebrafish model organism.
  • Confocal microscopy to observe Yap localization.
  • Genetic and molecular analyses to identify downstream targets.

Main Results:

  • Blood flow induces Yap translocation into the nucleus of endothelial cells.
  • Nuclear Yap activates a genetic program essential for maintaining vascular stability.
  • Yap-mediated gene expression is critical for zebrafish vascular development and integrity.

Conclusions:

  • Yap acts as a key mechanosensor in endothelial cells, translating blood flow cues into a genetic program.
  • This pathway is vital for ensuring vascular stability during development and in response to physiological stimuli.

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