Physiological random processes in precision cancer therapy.

Many different physiological processes affect the growth of malignant lesions and their response to therapy. Each of these processes is spatially and genetically heterogeneous; dynamically evolving in time; controlled by many other physiological processes, and intrinsically random and unpredictable....

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Main Authors: Nick Henscheid, Eric Clarkson, Kyle J Myers, Harrison H Barrett
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2018-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC6025881?pdf=render
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author Nick Henscheid
Eric Clarkson
Kyle J Myers
Harrison H Barrett
author_facet Nick Henscheid
Eric Clarkson
Kyle J Myers
Harrison H Barrett
author_sort Nick Henscheid
collection DOAJ
description Many different physiological processes affect the growth of malignant lesions and their response to therapy. Each of these processes is spatially and genetically heterogeneous; dynamically evolving in time; controlled by many other physiological processes, and intrinsically random and unpredictable. The objective of this paper is to show that all of these properties of cancer physiology can be treated in a unified, mathematically rigorous way via the theory of random processes. We treat each physiological process as a random function of position and time within a tumor, defining the joint statistics of such functions via the infinite-dimensional characteristic functional. The theory is illustrated by analyzing several models of drug delivery and response of a tumor to therapy. To apply the methodology to precision cancer therapy, we use maximum-likelihood estimation with Emission Computed Tomography (ECT) data to estimate unknown patient-specific physiological parameters, ultimately demonstrating how to predict the probability of tumor control for an individual patient undergoing a proposed therapeutic regimen.
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spelling doaj.art-6efa8957d2164bbb953ca4b50ae59af62022-12-21T23:47:23ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01136e019982310.1371/journal.pone.0199823Physiological random processes in precision cancer therapy.Nick HenscheidEric ClarksonKyle J MyersHarrison H BarrettMany different physiological processes affect the growth of malignant lesions and their response to therapy. Each of these processes is spatially and genetically heterogeneous; dynamically evolving in time; controlled by many other physiological processes, and intrinsically random and unpredictable. The objective of this paper is to show that all of these properties of cancer physiology can be treated in a unified, mathematically rigorous way via the theory of random processes. We treat each physiological process as a random function of position and time within a tumor, defining the joint statistics of such functions via the infinite-dimensional characteristic functional. The theory is illustrated by analyzing several models of drug delivery and response of a tumor to therapy. To apply the methodology to precision cancer therapy, we use maximum-likelihood estimation with Emission Computed Tomography (ECT) data to estimate unknown patient-specific physiological parameters, ultimately demonstrating how to predict the probability of tumor control for an individual patient undergoing a proposed therapeutic regimen.http://europepmc.org/articles/PMC6025881?pdf=render
spellingShingle Nick Henscheid
Eric Clarkson
Kyle J Myers
Harrison H Barrett
Physiological random processes in precision cancer therapy.
PLoS ONE
title Physiological random processes in precision cancer therapy.
title_full Physiological random processes in precision cancer therapy.
title_fullStr Physiological random processes in precision cancer therapy.
title_full_unstemmed Physiological random processes in precision cancer therapy.
title_short Physiological random processes in precision cancer therapy.
title_sort physiological random processes in precision cancer therapy
url http://europepmc.org/articles/PMC6025881?pdf=render
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