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Updated: Aug 25, 2025
09:55
In vitro Cell Migration and Invasion Assays
Published on: June 1, 2014
138.9K
Nestin Modulates Airway Smooth Muscle Cell Migration by Affecting Spatial Rearrangement of Vimentin Network and Focal
Ruping Wang1, Sakeeb Khan1, Guoning Liao1
1Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY 12208, USA.
Cells
|October 14, 2022
Summary
Nestin protein is crucial for airway smooth muscle cell migration, a key factor in asthma progression. Its absence impairs cell movement by affecting focal adhesion assembly and vimentin phosphorylation.
Area of Science:
- Cell Biology
- Respiratory Medicine
- Biochemistry
Background:
- Airway smooth muscle cell migration contributes to airway remodeling in allergic asthma.
- The precise mechanisms regulating cell migration, particularly involving nestin, remain unclear.
Purpose of the Study:
- To investigate the role of nestin in human airway smooth muscle cell migration.
- To elucidate the molecular mechanisms by which nestin influences cell migration.
Main Methods:
- Nestin knockdown in human airway smooth muscle cells.
- Confocal microscopy and Imaris software analysis of cell morphology and focal adhesions.
- Assessment of polo-like kinase 1 (Plk1) and vimentin phosphorylation.
- Rescue experiments using a vimentin phosphorylation-mimic mutant.
Main Results:
- Nestin knockdown inhibited airway smooth muscle cell migration and reduced focal adhesion size.
- Nestin knockdown decreased Plk1 activation, vimentin phosphorylation at Ser-56, and vimentin-paxillin interactions.
- Expression of a vimentin phosphorylation-mimic mutant rescued cell migration and focal adhesion characteristics in nestin-depleted cells.
Conclusions:
- Nestin promotes airway smooth muscle cell migration.
- Nestin regulates cell migration by modulating Plk1 phosphorylation, which impacts vimentin phosphorylation, vimentin-paxillin interactions, and focal adhesion assembly.
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