PUBLICATION
Polarization and migration in the zebrafish posterior lateral line system
- Authors
- Knutsdottir, H., Zmurchok, C., Bhaskar, D., Palsson, E., Dalle Nogare, D., Chitnis, A., Edelstein-Keshet, L.
- ID
- ZDB-PUB-170404-8
- Date
- 2017
- Source
- PLoS Computational Biology 13: e1005451 (Journal)
- Registered Authors
- Chitnis, Ajay
- Keywords
- Wnt signaling cascade, Signal inhibition, Chemokines, Signaling networks, Chemotaxis, Cell signaling, Simulation and modeling, Cell migration
- MeSH Terms
-
- Animals
- Body Patterning*
- Cell Movement*
- Cell Polarity*
- Computational Biology
- Models, Biological
- Zebrafish/embryology*
- PubMed
- 28369079 Full text @ PLoS Comput. Biol.
Citation
Knutsdottir, H., Zmurchok, C., Bhaskar, D., Palsson, E., Dalle Nogare, D., Chitnis, A., Edelstein-Keshet, L. (2017) Polarization and migration in the zebrafish posterior lateral line system. PLoS Computational Biology. 13:e1005451.
Abstract
Collective cell migration plays an important role in development. Here, we study the posterior lateral line primordium (PLLP) a group of about 100 cells, destined to form sensory structures, that migrates from head to tail in the zebrafish embryo. We model mutually inhibitory FGF-Wnt signalling network in the PLLP and link tissue subdivision (Wnt receptor and FGF receptor activity domains) to receptor-ligand parameters. We then use a 3D cell-based simulation with realistic cell-cell adhesion, interaction forces, and chemotaxis. Our model is able to reproduce experimentally observed motility with leading cells migrating up a gradient of CXCL12a, and trailing (FGF receptor active) cells moving actively by chemotaxis towards FGF ligand secreted by the leading cells. The 3D simulation framework, combined with experiments, allows an investigation of the role of cell division, chemotaxis, adhesion, and other parameters on the shape and speed of the PLLP. The 3D model demonstrates reasonable behaviour of control as well as mutant phenotypes.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping