Cellular Potts Model

Diffusion model with cells endowed with chemotactic ability Introduction Previously developed diffusion models can be used to model chemotaxis by adding cells endowed with chemotactic ability. Here, chemotaxis of a group of cells towards a chemical diffusing into the domain with a high level at the right boundary is demonstrated, as well as in a second model, Keller-Segel cells being the sources of their own attractant.

Time sequence showing the changing shape of a CPM cell Introduction Not all cell shapes are circular. In this example, a single cell undergoes a whole series of deformations resulting in the development of irregular cell shapes.

Unbiased and biased random walkers Introduction We can simulate the swimming motion of a cell, such as a bacterium, by interspersing short periods of directed motion with random turns or random scrambling of the cell’s velocity.

Two-parameter plane showing all possible regimes of behavior for a single CPM cell Introduction The idea is based on figure 3 in the referenced paper. Description But here, we use two dimensionless parameters:

Example demonstrating how adhesion energies affect cell shape and the cell-cell contact region Introduction We simulate two CPM cells of the same type to demonstrate how adhesion energies affect cell shape and the cell-cell contact region.

This multiscale mechanistic liver lobule model is composed of various interacting cell types, such as hepatocytes, residential Kupffer cells and macrophages. It captures hepatocellular acetaminophen (APAP) metabolism, DNA damage response activation, necrotic cell death, macrophage recruitment and the regulation of hepatocellular senescence and proliferation, with qualitatively different outcomes as a function of the initial APAP concentration in blood plasma.

Introduction Comparison of spatio-temporal model output to experimental measurements or between model variants all require the application of summary statistics. For multicellular models, statistical properties of the cell configuration at given times or across time are of interest and Morpheus provides some Analysis/Trackers for that: CellTracker, DisplacementTracker, ClusteringTracker and ContactLogger.

Guidance-by-followers combined with one of several simple rule sets for integration of signals from multiple neighbors provides a robust mechanism for collective cell migration. Introduction Collective cell migration is an important process during biological development and tissue repair but may turn malignant during tumor invasion.

Introduction Larvae of the nematode Caenorhabditis elegans aggregate into clusters of several hundred moving individuals when starved during their first larval stage (see video below). Avery et al. proposed that starved larvae produce and respond chemotactically to two diffusible chemical signals, a short-range attractant and a longer range repellent.

Introduction Collective motion of human breast cancer cells of the cell line MDA-MB-231 was studied by Lee et al. for individual crawling cells, cell doublets, cell quadruplets and for confluent populations on a two-dimensional substrate.