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Disentangling Membrane Dynamics and Cell Migration; Differential Influences of F-actin and Cell-Matrix Adhesions
Stockholm University, Faculty of Science, Department of Mathematics. Karolinska Institutet, Sweden.
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Number of Authors: 7
2015 (English)In: PLoS ONE, ISSN 1932-6203, Vol. 10, no 8, e0135204Article in journal (Refereed) Published
Abstract [en]

Cell migration is heavily interconnected with plasma membrane protrusion and retraction (collectively termed membrane dynamics). This makes it difficult to distinguish regulatory mechanisms that differentially influence migration and membrane dynamics. Yet such distinctions may be valuable given evidence that cancer cell invasion in 3D may be better predicted by 2D membrane dynamics than by 2D cell migration, implying a degree of functional independence between these processes. Here, we applied multi-scale single cell imaging and a systematic statistical approach to disentangle regulatory associations underlying either migration or membrane dynamics. This revealed preferential correlations between membrane dynamics and F-actin features, contrasting with an enrichment of links between cell migration and adhesion complex properties. These correlative linkages were often nonlinear and therefore context-dependent, strengthening or weakening with spontaneous heterogeneity in cell behavior. More broadly, we observed that slow moving cells tend to increase in area, while fast moving cells tend to shrink, and that the size of dynamic membrane domains is independent of cell area. Overall, we define macromolecular features preferentially associated with either cell migration or membrane dynamics, enabling more specific interrogation and targeting of these processes in future.

Place, publisher, year, edition, pages
2015. Vol. 10, no 8, e0135204
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Other Natural Sciences
URN: urn:nbn:se:su:diva-120189DOI: 10.1371/journal.pone.0135204ISI: 000359062300108OAI: diva2:851347
Available from: 2015-09-04 Created: 2015-09-02 Last updated: 2015-09-04Bibliographically approved

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Jafari-Mamaghani, Mehrdad
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