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Updated: May 15, 2026
10:25
High-resolution Time-lapse Imaging and Automated Analysis of Microtubule Dynamics in Living Human Umbilical Vein Endothelial Cells
Published on: August 13, 2016
Microtubule dynamics regulation contributes to endothelial morphogenesis.
Karen S Lyle1, Jose A Corleto, Torsten Wittmann
1Department of Cell and Tissue Biology, University of California at San Francisco, USA.
Bioarchitecture
|December 26, 2012
Summary
Microtubules are crucial for endothelial cell migration in 3D environments, guiding cell movement along matrix fibers. Their dynamics stabilize cell protrusions, enabling network formation during angiogenesis.
Area of Science:
- Cell Biology
- Biophysics
- Angiogenesis Research
Background:
- The role of microtubules in cell migration within physiological 3D environments remains poorly understood.
- Endothelial cells form networks during angiogenesis, a process involving matrix reorganization and cell migration.
Purpose of the Study:
- To investigate microtubule function and dynamics during in vitro angiogenesis.
- To elucidate how microtubules contribute to endothelial cell migration in a 3D matrix.
Main Methods:
- Analysis of microtubule dynamics in endothelial cells forming networks on a reconstituted basement membrane.
- Inhibition of microtubule dynamics to assess its impact on cell migration and matrix reorganization.
- Spatial analysis of microtubule polymerization and CLASP2 binding.
Main Results:
- Inhibition of microtubule dynamics impaired persistent cell migration but not matrix reorganization.
- Microtubule polymerization and CLASP2 binding were spatially regulated, promoting growth into cell protrusions along matrix tension tracks.
- Microtubules were found to counteract cortical actin forces.
Conclusions:
- Microtubules are essential for endothelial cell migration in 3D environments.
- Microtubule dynamics are critical for stabilizing cell protrusions during angiogenesis.
- Microtubules play a key role in counteracting contractile forces within the 3D matrix.
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