Document Detail

Coalescence of interacting cell populations.
MedLine Citation:
PMID:  17467009     Owner:  NLM     Status:  MEDLINE    
We analyse the coalescence of invasive cell populations by studying both the temporal and steady behaviour of a system of coupled reaction-diffusion equations. This problem is relevant to recent experimental observations of the dynamics of opposingly directed invasion waves of cells. Two cell types, u and v, are considered with the cell motility governed by linear or nonlinear diffusion. The cells proliferate logistically so that the long-term total cell density, u+v approaches a carrying capacity. The steady-state solutions for u and v are denoted u(s) and v(s). The steady solutions are spatially invariant and satisfy u(s)+v(s)=1. However, this expression is underdetermined so the relative proportion of each cell type u(s) and v(s) cannot be determined a priori. Various properties of this model are studied, such as how the relative proportion of u(s) and v(s) depends on the relative motility and relative proliferation rates. The model is analysed using a combination of numerical simulations and a comparison principle. This investigation unearths some novel outcomes regarding the role of overcrowding and cell death in this type of cell migration assay. These observations have relevance to experimental design and interpretation regarding the identification and parameterisation of mechanisms involved in cell invasion.
Matthew J Simpson; Kerry A Landman; Kaushik Bhaganagarapu
Related Documents :
25466519 - Antifibrogenic effects of b16 melanoma-conditioned medium.
25344169 - Biocompatibility of core@shell particles: cytotoxicity and genotoxicity in human osteos...
25289759 - Inhibitory effects of capsaicin on hepatic stellate cells and liver fibrosis.
20711349 - A model for a correlated random walk based on the ordered extension of pseudopodia.
15137079 - Modeling mass transfer in hepatocyte spheroids via cell viability, spheroid size, and h...
19699109 - Nomenclature and guideline to express the amount of a membrane protein synthesized in a...
4966549 - Chemical and serological relationships between the heteropolysaccharides of mycobacteri...
11983939 - Harvesting cells under anchorage-independent cell transformation conditions for biochem...
6928109 - Binding of lectins to leukemic cell lines.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-03-14
Journal Detail:
Title:  Journal of theoretical biology     Volume:  247     ISSN:  0022-5193     ISO Abbreviation:  J. Theor. Biol.     Publication Date:  2007 Aug 
Date Detail:
Created Date:  2007-06-25     Completed Date:  2007-08-13     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0376342     Medline TA:  J Theor Biol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  525-43     Citation Subset:  IM    
Department of Mathematics and Statistics, University of Melbourne, Vic. 3010, Australia.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Cell Aggregation
Cell Communication / physiology
Cell Division / physiology
Cell Movement / physiology
Cell Physiological Phenomena*
Models, Biological

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Stability of emotional dysfunctions? A long-term fMRI study in first-episode schizophrenia.
Next Document:  Butyrylcholinesterase and the control of synaptic responses in acetylcholinesterase knockout mice.