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Macropinocytosis and Cell Migration: Don’t Drink and Drive…

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Macropinocytosis

Part of the book series: Subcellular Biochemistry ((SCBI,volume 98))

Abstract

Macropinocytosis is a nonspecific mechanism by which cells compulsively “drink” the surrounding extracellular fluids in order to feed themselves or sample the molecules therein, hence gaining information about their environment. This process is cell-intrinsically incompatible with the migration of many cells, implying that the two functions are antagonistic. The migrating cell uses a molecular switch to stop and explore its surrounding fluid by macropinocytosis, after which it employs the same molecular machinery to start migrating again to examine another location. This cycle of migration/macropinocytosis allows cells to explore tissues, and it is key to a range of physiological processes. Evidence of this evolutionarily conserved antagonism between the two processes can be found in several cell types—immune cells, for example, being particularly adept—and ancient organisms (e.g., the social amoeba Dictyostelium discoideum). How macropinocytosis and migration are negatively coupled is the subject of this chapter.

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Acknowledgements

We would like to thank our language editor Andrew Moore and Esteban Contreras for their constructive comments on the manuscript.

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Correspondence to Ana-María Lennon-Duménil .

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Delgado, MG., Rivera, C.A., Lennon-Duménil, AM. (2022). Macropinocytosis and Cell Migration: Don’t Drink and Drive…. In: Commisso, C. (eds) Macropinocytosis. Subcellular Biochemistry, vol 98. Springer, Cham. https://doi.org/10.1007/978-3-030-94004-1_5

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