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  Blood Flow Limits Endothelial Cell Extrusion in the Zebrafish Dorsal Aorta

Campinho, P., Lamperti, P., Boselli, F., Vilfan, A., & Vermot, J. (2020). Blood Flow Limits Endothelial Cell Extrusion in the Zebrafish Dorsal Aorta. Cell Reports, 31(2): 107505. doi:10.1016/j.celrep.2020.03.069.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-9D59-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-9D5A-5
Genre: Journal Article

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 Creators:
Campinho, Pedro, Author
Lamperti, Paola, Author
Boselli, Francesco, Author
Vilfan, Andrej1, Author              
Vermot, Julien, Author
Affiliations:
1Department of Living Matter Physics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2570692              

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 Abstract: Blood flow modulates endothelial cell (EC) response during angiogenesis. Shear stress is known to control gene expression related to the endothelialmesenchymal transition and endothelial-hematopoietic transition. However, the impact of blood flow on the cellular processes associated with EC extrusion is less well understood. To address this question, we dynamically record EC movements and use 3D quantitative methods to segregate the contributions of various cellular processes to the cellular trajectories in the zebrafish dorsal aorta. We find that ECs spread toward the cell extrusion area following the tissue deformation direction dictated by flowderived mechanical forces. Cell extrusion increases when blood flow is impaired. Similarly, the mechanosensor polycystic kidney disease 2 (pkd2) limits cell extrusion, suggesting that ECs actively sense mechanical forces in the process. These findings identify pkd2 and flow as critical regulators of EC extrusion and suggest that mechanical forces coordinate this process by maintaining ECs within the endothelium.

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Language(s): eng - English
 Dates: 2020-04-14
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.celrep.2020.03.069
 Degree: -

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Title: Cell Reports
Source Genre: Journal
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Pages: 10 Volume / Issue: 31 (2) Sequence Number: 107505 Start / End Page: - Identifier: ISSN: 22111247