Game Theory of Tumor–Stroma Interactions in Multiple Myeloma: Effect of Nonlinear Benefits

Sartakhti, Javad Salimi, Hossein Manshaei, Mohammad and Archetti, Marco (2018) Game Theory of Tumor–Stroma Interactions in Multiple Myeloma: Effect of Nonlinear Benefits. Games, 9 (2). ISSN 2073-4336

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Abstract

Cancer cells and stromal cells often exchange growth factors with paracrine effects that promote cell growth: a form of cooperation that can be studied by evolutionary game theory. Previous models have assumed that interactions between cells are pairwise or that the benefit of a growth factor is a linear function of its concentration. Diffusible factors, however, affect multiple cells and generally have nonlinear effects, and these differences are known to have important consequences for evolutionary dynamics. Here, we study tumor–stroma paracrine signaling using a model with multiplayer collective interactions in which growth factors have nonlinear effects. We use multiple myeloma as an example, modelling interactions between malignant plasma cells, osteoblasts, and osteoclasts. Nonlinear benefits can lead to results not observed in linear models, including internal mixed stable equilibria and cyclical dynamics. Models with linear effects, therefore, do not lead to a meaningful characterization of the dynamics of tumor–stroma interactions. To understand the dynamics and the effect of therapies it is necessary to estimate the shape of the benefit functions experimentally and parametrize models based on these functions.

Item Type: Article
Uncontrolled Keywords: game theory,cancer,stroma,tumor microenvironment,nonlinear benefits
Faculty \ School: Faculty of Science > School of Biological Sciences
Related URLs:
Depositing User: LivePure Connector
Date Deposited: 19 Jun 2018 14:30
Last Modified: 22 Jul 2020 02:21
URI: https://ueaeprints.uea.ac.uk/id/eprint/67397
DOI: 10.3390/g9020032

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