Membrane area gain and loss during cytokinesis

Felix Frey, Timon Idema*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

In cytokinesis of animal cells, the cell is symmetrically divided into two. Since the cell's volume is conserved, the projected area has to increase to allow for the change of shape. Here we aim to predict how membrane gain and loss adapt during cytokinesis. We work with a kinetic model in which membrane turnover depends on membrane tension and cell shape. We apply this model to a series of calculated vesicle shapes as a proxy for the shape of dividing cells. We find that the ratio of kinetic turnover parameters changes nonmonotonically with cell shape, determined by the dependence of exocytosis and endocytosis on membrane curvature. Our results imply that controlling membrane turnover will be crucial for the successful division of artificial cells.

Original languageEnglish
Article number024401
Number of pages15
JournalPhysical Review E
Volume106
Issue number2
DOIs
Publication statusPublished - 2022

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