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- W2023404925 endingPage "e0122892" @default.
- W2023404925 startingPage "e0122892" @default.
- W2023404925 abstract "Endoglin is a type III TGFβ auxiliary receptor that is upregulated in endothelial cells during angiogenesis and, when mutated in humans, results in the vascular disease hereditary hemorrhagic telangiectasia (HHT). Though endoglin has been implicated in cell adhesion, the underlying molecular mechanisms are still poorly understood. Here we show endoglin expression in endothelial cells regulates subcellular localization of zyxin in focal adhesions in response to BMP9. RNA knockdown of endoglin resulted in mislocalization of zyxin and altered formation of focal adhesions. The mechanotransduction role of focal adhesions and their ability to transmit regulatory signals through binding of the extracellular matrix are altered by endoglin deficiency. BMP/TGFβ transcription factors, SMADs, and zyxin have recently been implicated in a newly emerging signaling cascade, the Hippo pathway. The Hippo transcription coactivator, YAP1 (yes-associated protein 1), has been suggested to play a crucial role in mechanotransduction and cell-cell contact. Identification of BMP9-dependent nuclear localization of YAP1 in response to endoglin expression suggests a mechanism of crosstalk between the two pathways. Suppression of endoglin and YAP1 alters BMP9-dependent expression of YAP1 target genes CCN1 (cysteine-rich 61, CYR61) and CCN2 (connective tissue growth factor, CTGF) as well as the chemokine CCL2 (monocyte chemotactic protein 1, MCP-1). These results suggest a coordinate effect of endoglin deficiency on cell matrix remodeling and local inflammatory responses. Identification of a direct link between the Hippo pathway and endoglin may reveal novel mechanisms in the etiology of HHT." @default.
- W2023404925 created "2016-06-24" @default.
- W2023404925 creator A5001736006 @default.
- W2023404925 creator A5017938441 @default.
- W2023404925 creator A5040449545 @default.
- W2023404925 creator A5041078470 @default.
- W2023404925 creator A5047092535 @default.
- W2023404925 creator A5055769016 @default.
- W2023404925 creator A5058334513 @default.
- W2023404925 creator A5068305317 @default.
- W2023404925 date "2015-04-24" @default.
- W2023404925 modified "2023-09-27" @default.
- W2023404925 title "BMP9 Crosstalk with the Hippo Pathway Regulates Endothelial Cell Matricellular and Chemokine Responses" @default.
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