title: Self-propelled particle model for cell-sorting phenomena.
abstract: A self-propelled particle model is introduced to study cell sorting occurring in some living organisms. This allows us to evaluate the influence of intrinsic cell motility separately from differential adhesion with fluctuations, a mechanism previously shown to be sufficient to explain a variety of cell rearrangement processes. We find that the tendency of cells to actively follow their neighbors greatly reduces segregation time scales. A finite-size analysis of the sorting process reveals clear algebraic growth laws as in physical phase-ordering processes, albeit with unusual scaling exponents.
authors.affiliation: Instituto de Física, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 9500, P.B. 15051, 91501-970 Porto Alegre, Brazil.
authors.forename: Julio M
authors.initials: JM
authors.lastname: Belmonte
authors.forename: Gilberto L
authors.initials: GL
authors.lastname: Thomas
authors.forename: Leonardo G
authors.initials: LG
authors.lastname: Brunnet
authors.forename: Rita M C
authors.initials: RM
authors.lastname: de Almeida
authors.forename: Hugues
authors.initials: H
authors.lastname: Chaté
mesh_terms: D000818:Animals; D002448:Cell Adhesion / Q000502:physiology; D002465:Cell Movement / Q000502:physiology*; D006829:Hydra / Q000166:cytology / Q000502:physiology*; D008954:Models, Biological; D012038:Regeneration / Q000502:physiology*