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- W2890154816 abstract "The vascular endothelium is constantly exposed to mechanical forces, including fluid shear stress exerted by the flowing blood. Endothelial cells can sense different flow patterns and convert the mechanical signal of laminar flow into atheroprotective signals, including eNOS activation, whereas disturbed flow in atheroprone areas induces inflammatory signaling, including NF-κB activation. How endothelial cells distinguish different flow patterns is poorly understood. Here we show that both laminar and disturbed flow activate the same initial pathway involving the mechanosensitive cation channel Piezo1, the purinergic P2Y2 receptor, and Gq/G11-mediated signaling. However, only disturbed flow leads to Piezo1- and Gq/G11-mediated integrin activation resulting in focal adhesion kinase-dependent NF-κB activation. Mice with induced endothelium-specific deficiency of Piezo1 or Gαq/Gα11 show reduced integrin activation, inflammatory signaling, and progression of atherosclerosis in atheroprone areas. Our data identify critical steps in endothelial mechanotransduction, which distinguish flow pattern-dependent activation of atheroprotective and atherogenic endothelial signaling and suggest novel therapeutic strategies to treat inflammatory vascular disorders such as atherosclerosis." @default.
- W2890154816 created "2018-09-27" @default.
- W2890154816 creator A5021103941 @default.
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- W2890154816 date "2018-09-07" @default.
- W2890154816 modified "2023-10-17" @default.
- W2890154816 title "Piezo1 and Gq/G11 promote endothelial inflammation depending on flow pattern and integrin activation" @default.
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- W2890154816 doi "https://doi.org/10.1084/jem.20180483" @default.
- W2890154816 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6170174" @default.
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- W2890154816 hasPublicationYear "2018" @default.
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