Figure 2.

Active vertex model accounting for intercellular social interactions. (A) A schematic of the LA and CIL interactions among cells. (B) A schematic of T1 topological transition in the active vertex model. (C) The swirling pattern obtained from our active vertex model. The black arrows denote the velocity vectors, and the color code corresponds to its magnitude. Shown here is a local window of the velocity field for a system containing N ∼ 10,000 cells (see Fig. S1 A for the global view). Parameter values: μ_a = 0.05 and μ_c = 1.0. To see this figure in color, go online.