Orateur
Description
Biological tissues self-organise thanks to patterning processes coupled to cellular mechanical interactions, which play a fundamental role in driving coordinated cell movements. Here I will discuss how polarity-oriented active mechanical forces drive collective cell motion in three dimensions. I will introduce the framework of « interacting active surfaces », which describe cell aggregates as mechanically coupled flowing active surfaces. I will discuss the three-dimensional rotational motion of cell doublets, which arise from polarised distribution of myosins in the actomyosin cortex of the doublet cells. I will discuss how the shape of the doublet interface can be understood from an analysis of the group of symmetry of the cell doublet and application of the Curie principle.
Affiliation de l'auteur principal | Université de Genève |
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