Actomyosin‐dependent invasion of endothelial sprouts in collagen
| Autor: | Hans Van Oosterwyck, Maarten B. J. Roeffaers, Jorge Barrasa-Fano, Alvaro Jorge-Peñas, Marie-Mo Vaeyens, Apeksha Shapeti |
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| Rok vydání: | 2020 |
| Předmět: |
Cytochalasin D
FOCAL-ADHESION macromolecular substances Biology NONMUSCLE MYOSIN-II jasplakinolide Traction force microscopy cellular force generation Focal adhesion Extracellular matrix 03 medical and health sciences 0302 clinical medicine Structural Biology in vitro angiogenesis Myosin EXTRACELLULAR-MATRIX Humans Endothelium blebbistatin Cytoskeleton ACTIN POLYMERIZATION Actin 030304 developmental biology Sprouting angiogenesis 0303 health sciences Science & Technology COLLECTIVE CELL-MIGRATION TRACTION FORCE MICROSCOPY endothelial cytoskeleton Calyculin A SPATIOTEMPORAL DYNAMICS Actomyosin MECHANICAL-PROPERTIES Cell Biology Cell biology Collagen SMALL-MOLECULE INHIBITORS Life Sciences & Biomedicine CYTOCHALASIN-D 030217 neurology & neurosurgery Sprouting |
| Zdroj: | Cytoskeleton. 77:261-276 |
| ISSN: | 1949-3592 1949-3584 |
| DOI: | 10.1002/cm.21624 |
| Popis: | During sprouting angiogenesis-the growth of blood vessels from the existing vasculature-endothelial cells (ECs) adopt an elongated invasive form and exert forces at cell-cell and cell-matrix interaction sites. These cell shape changes and cellular tractions require extensive reorganizations of the actomyosin network. However, the respective roles of actin and myosin for endothelial sprouting are not fully elucidated. In this study, we further investigate these roles by treating 2D-migrating and 3D-sprouting ECs with chemical compounds targeting either myosin or actin. These treatments affected the endothelial cytoskeleton drastically and reduced the invasive response in a compound-specific manner; pointing toward a tight control of the actin and myosin activity during sprouting. Clusters in the data further illustrate that endothelial sprout morphology is sensitive to the in vitro model mechanical microenvironment and directs future research toward mechanical substrate guidance as a strategy for promoting engineered tissue vascularization. In summary, our results add to a growing corpus of research highlighting a key role of the cytoskeleton for sprouting angiogenesis. ispartof: CYTOSKELETON vol:77 issue:7 pages:261-276 ispartof: location:United States status: published |
| Databáze: | OpenAIRE |
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