Chlamydial infection and spatial ascension of the female genital tract : a novel hybrid cellular automata and continuum mathematical model

Mallet, Dann G., Heymer, Kelly-Jean, Rank, Roger G., & Wilson, David P. (2009) Chlamydial infection and spatial ascension of the female genital tract : a novel hybrid cellular automata and continuum mathematical model. FEMS Immunology & Medical Microbiology, 57(2), pp. 173-182.

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Sexually transmitted chlamydial infection initially establishes in the endocervix in females, but if the infection ascends the genital tract, significant disease, including infertility, can result. Many of the mechanisms associated with chlamydial infection kinetics and disease ascension are unknown. We attempt to elucidate some of these processes by developing a novel mathematical model, using a cellular automata–partial differential equation model. We matched our model outputs to experimental data of chlamydial infection of the guinea-pig cervix and carried out sensitivity analyses to determine the relative influence of model parameters. We found that the rate of recruitment and action of innate immune cells to clear extracellular chlamydial particles and the rate of passive movement of chlamydial particles are the dominant factors in determining the early course of infection, magnitude of the peak chlamydial time course and the time of the peak. The rate of passive movement was found to be the most important factor in determining whether infection would ascend to the upper genital tract. This study highlights the importance of early innate immunity in the control of chlamydial infection and the significance of motility-diffusive properties and the adaptive immune response in the magnitude of infection and in its ascension.

Impact and interest:

9 citations in Scopus
12 citations in Web of Science®
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ID Code: 27798
Item Type: Journal Article
Refereed: Yes
DOI: 10.1111/j.1574-695X.2009.00596.x
ISSN: 0928-8244
Subjects: Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > APPLIED MATHEMATICS (010200) > Biological Mathematics (010202)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > Schools > Mathematical Sciences
Copyright Owner: Copyright 2009 Federation of European Microbiological Societies/Blackwell Publishing Ltd
Deposited On: 06 Oct 2009 00:59
Last Modified: 20 Oct 2014 21:28

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