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    Drug delivery in a tumour cord model: a computational simulation

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    hubbard_et_al_2017.pdf (983.8Kb)
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    Publication date
    2017-05-24
    Author
    Hubbard, M.E.
    Jove, M.
    Loadman, Paul M.
    Phillips, Roger M.
    Twelves, Christopher J.
    Smye, S.W.
    Keyword
    Computational modelling; Mathematical modelling; Drug delivery; Drug transport and binding; Pharmacokinetic profiles
    Rights
    © 2017 The Authors. This is an Open Access article distributed under the Creative Commons CC-BY license (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, provided the original author and source are credited.
    Peer-Reviewed
    Yes
    
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    Abstract
    The tumour vasculature and microenvironment is complex and heterogeneous, contributing to reduced delivery of cancer drugs to the tumour. We have developed an in silico model of drug transport in a tumour cord to explore the effect of different drug regimes over a 72 h period and how changes in pharmacokinetic parameters affect tumour exposure to the cytotoxic drug doxorubicin. We used the model to describe the radial and axial distribution of drug in the tumour cord as a function of changes in the transport rate across the cell membrane, blood vessel and intercellular permeability, flow rate, and the binding and unbinding ratio of drug within the cancer cells. We explored how changes in these parameters may affect cellular exposure to drug. The model demonstrates the extent to which distance from the supplying vessel influences drug levels and the effect of dosing schedule in relation to saturation of drug-binding sites. It also shows the likely impact on drug distribution of the aberrant vasculature seen within tumours. The model can be adapted for other drugs and extended to include other parameters. The analysis confirms that computational models can play a role in understanding novel cancer therapies to optimize drug administration and delivery.
    URI
    http://hdl.handle.net/10454/12057
    Version
    Published version
    Citation
    Hubbard ME, Jove M, Loadman PM et al (2017) Drug delivery in a tumour cord model: a computational simulation. Royal Society Open Science. 4: 170014.
    Link to publisher’s version
    https://doi.org/10.1098/rsos.170014
    Type
    Article
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    Life Sciences Publications

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