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Updated: Dec 30, 2025

De Novo Generation of Somatic Stem Cells by YAP/TAZ
Published on: May 7, 2018
DLC1 is a direct target of activated YAP/TAZ that drives collective migration and sprouting angiogenesis
Miesje van der Stoel1, Lilian Schimmel2, Kalim Nawaz2
1Amsterdam UMC, University of Amsterdam, location AMC, Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, 1105 AZ Amsterdam, The Netherlands.
Abstract:
Endothelial YAP/TAZ (YAP is also known as YAP1, and TAZ as WWTR1) signaling is crucial for sprouting angiogenesis and vascular homeostasis. However, the underlying molecular mechanisms that explain how YAP/TAZ control the vasculature remain unclear. This study reveals that the focal adhesion protein deleted-in-liver-cancer 1 (DLC1) is a direct transcriptional target of the activated YAP/TAZ-TEAD complex. We find that substrate stiffening and VEGF stimuli promote expression of DLC1 in endothelial cells. In turn, DLC1 expression levels are YAP and TAZ dependent, and constitutive activation of YAP is sufficient to drive DLC1 expression. DLC1 is needed to limit F-actin fiber formation, integrin-based focal adhesion lifetime and integrin-mediated traction forces. Depletion of endothelial DLC1 strongly perturbs cell polarization in directed collective migration and inhibits the formation of angiogenic sprouts. Importantly, ectopic expression of DLC1 is sufficient to restore migration and angiogenic sprouting in YAP-depleted cells. Together, these findings point towards a crucial and prominent role for DLC1 in YAP/TAZ-driven endothelial adhesion remodeling and collective migration during angiogenesis.This article has an associated First Person interview with the first author of the paper.
Insights
This study identifies deleted-in-liver-cancer 1 (DLC1) as a key regulator in endothelial YAP/TAZ signaling, crucial for blood vessel formation (angiogenesis) and vascular homeostasis.
Area of Science:
- Vascular biology
- Cell signaling
- Molecular mechanisms
Background:
- Endothelial YAP/TAZ signaling is vital for angiogenesis and vascular homeostasis.
- The precise molecular mechanisms by which YAP/TAZ regulate the vasculature are not fully understood.
Purpose of the Study:
- To elucidate the molecular mechanisms of YAP/TAZ in endothelial cells.
- To identify direct targets of YAP/TAZ-TEAD complexes in angiogenesis.
Main Methods:
- Investigated the role of deleted-in-liver-cancer 1 (DLC1) as a YAP/TAZ transcriptional target.
- Utilized substrate stiffening and VEGF stimulation to modulate DLC1 expression.
- Examined the impact of DLC1 depletion and ectopic expression on endothelial cell behavior.
Main Results:
- DLC1 is a direct transcriptional target of YAP/TAZ-TEAD, induced by substrate stiffness and VEGF.
- DLC1 limits F-actin, focal adhesion lifetime, and traction forces in endothelial cells.
- Endothelial DLC1 depletion impairs cell polarization and angiogenic sprouting; its ectopic expression rescues these defects in YAP-depleted cells.
Conclusions:
- DLC1 plays a critical role in YAP/TAZ-mediated endothelial adhesion remodeling.
- DLC1 is essential for collective cell migration and angiogenic sprouting.
- DLC1 represents a key downstream effector of YAP/TAZ signaling in angiogenesis.
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