Cell Migration

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.

The migration of zebrafish polster cells is oriented by the migration of follower cells, allowing robust long-range coordination of different cell populations. Introduction Collective cell migration is an important process during biological development and tissue repair.

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.

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.

Multiscale model of epithelial-mesenchymal transition (EMT) with intracellular TGFβ signaling circuit Introduction The growth factor TGFβ regulates the snail-zeb intracellular circuit that affects EMT by controlling the levels of E and N-cadherin expression.

Multiple models in epithelial-mesenchymal transitions (EMT) Introduction We model epithelial-mesenchymal transition (EMT) by first assembling an ODE model for intracellular Yes-associated protein (YAP) signalling and then embedding this single cell model within individual cells in a multiscale simulation.

Simulated sheet morphology for YAP knockdown (KD) and overexpression (OE) Introduction We model epithelial-mesenchymal transition (EMT) by first assembling an ODE model for intracellular Yes-associated protein (YAP) signalling and then embedding this single cell model within individual cells in a multiscale simulation.

Multiscale simulation of EMT by minimal signaling circuit Introduction We model epithelial-mesenchymal transition (EMT) by first assembling an ODE model for intracellular Yes-associated protein (YAP) signalling and then embedding this single cell model within individual cells in a multiscale simulation.

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.

Just over 30 years ago, the cellular Potts model (CPM) was introduced to explain experimental observations of spontaneous cell sorting …