A density-independent rigidity transition in biological tissues

Bi, Dapeng Y Lopez, J H Y Schwarz, J M Y Manning, M Lisa (2015) A density-independent rigidity transition in biological tissues. Nature, 11. pp. 1074-1079. ISSN 17452473

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Resumen

Cell migration is important in many biological processes, including embryonic development, cancer metastasis, and wound healing. In these tissues, a cell’s motion is often strongly constrained by its neighbors, leading to glassy dynamics. While self-propelled particle models exhibit a density-driven glass transition, this does not explain liquid-to-solid transitions in confluent tissues, where there are no gaps between cells and therefore the density is constant. Here we demonstrate the existence of a new type of rigidity transition that occurs in the well-studied vertex model for confluent tissue monolayers at constant density. We find the onset of rigidity is governed by a model parameter that encodes single-cell properties such as cell-cell adhesion and cortical tension, providing an explanation for a liquid-to-solid transitions in confluent tissues and making testable predictions about how these transitions differ from those in particulate matter.

Tipo de Elemento:	Artículo
Asunto:	Q Ciencias > QC Physics
Division:	Facultad de Ciencias Exactas y Naturales > Programa de Física > Productividad
Depósito de Usuario:	PhD Jorge Hernán López Melo
Fecha Deposito:	08 Nov 2023 19:45
Ultima Modificación:	08 Nov 2023 19:45
URI:	http://sired.udenar.edu.co/id/eprint/9268

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