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Shape-Tension Coupling Produces Nematic Order in an Epithelium Vertex Model.
Rozman, Jan; Yeomans, Julia M; Sknepnek, Rastko.
Afiliación
  • Rozman J; Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Oxford OX1 3PU, United Kingdom.
  • Yeomans JM; Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Oxford OX1 3PU, United Kingdom.
  • Sknepnek R; School of Science and Engineering, University of Dundee, Dundee DD1 4HN, United Kingdom.
Phys Rev Lett ; 131(22): 228301, 2023 Dec 01.
Article en En | MEDLINE | ID: mdl-38101347
ABSTRACT
We study the vertex model for epithelial tissue mechanics extended to include coupling between the cell shapes and tensions in cell-cell junctions. This coupling represents an active force which drives the system out of equilibrium and leads to the formation of nematic order interspersed with prominent, long-lived +1 defects. The defects in the nematic ordering are coupled to the shape of the cell tiling, affecting cell areas and coordinations. This intricate interplay between cell shape, size, and coordination provides a possible mechanism by which tissues could spontaneously develop long-range polarity through local mechanical forces without resorting to long-range chemical patterning.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fenómenos Mecánicos / Uniones Intercelulares Idioma: En Revista: Phys Rev Lett Año: 2023 Tipo del documento: Article País de afiliación: Reino Unido Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fenómenos Mecánicos / Uniones Intercelulares Idioma: En Revista: Phys Rev Lett Año: 2023 Tipo del documento: Article País de afiliación: Reino Unido Pais de publicación: Estados Unidos