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YAP/TAZ Are Required to Suppress Osteogenic Differentiation of Vascular Smooth Muscle Cells.


ABSTRACT: Vascular smooth muscle cells (VSMCs) represent the prevailing cell type of arterial vessels and are essential for blood vessel structure and homeostasis. They have substantial potential for phenotypic plasticity when exposed to various stimuli in their local microenvironment. How VSMCs maintain their differentiated contractile phenotype is still poorly understood. Here we demonstrate that the Hippo pathway effectors YAP and TAZ play a critical role in maintaining the differentiated contractile phenotype of VSMCs. In the absence of YAP/TAZ, VSMCs lose their differentiated phenotype and undergo osteogenic differentiation, which results in vascular calcification. Osteogenic transdifferentiation was accompanied by the upregulation of Wnt target genes. The absence of YAP/TAZ in VSMCs led to Disheveled 3 (DVL3) nuclear translocation and upregulation of osteogenesis-associated genes independent of canonical Wnt/?-catenin signaling activation. Our data indicate that cytoplasmic YAP/TAZ interact with DVL3 to avoid its nuclear translocation and osteogenic differentiation, thereby maintaining the differentiated phenotype of VSMCs.

SUBMITTER: Wang L 

PROVIDER: S-EPMC7726335 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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YAP/TAZ Are Required to Suppress Osteogenic Differentiation of Vascular Smooth Muscle Cells.

Wang Lei L   Chennupati Ramesh R   Jin Young-June YJ   Li Rui R   Wang ShengPeng S   Günther Stefan S   Offermanns Stefan S  

iScience 20201126 12


Vascular smooth muscle cells (VSMCs) represent the prevailing cell type of arterial vessels and are essential for blood vessel structure and homeostasis. They have substantial potential for phenotypic plasticity when exposed to various stimuli in their local microenvironment. How VSMCs maintain their differentiated contractile phenotype is still poorly understood. Here we demonstrate that the Hippo pathway effectors YAP and TAZ play a critical role in maintaining the differentiated contractile p  ...[more]

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