A Two-Phenotype Model of Immune Evasion by Cancer Cells

Péter Bayer, Joel Brown, Katerina Stankova

Research output: Working paperProfessional

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Abstract

We propose a model with two types of cancer cells differentiated by their defense mechanisms against the immune system. ``Selfish'' cancer cells develop defense mechanisms that benefit the individual cell, whereas ``cooperative'' cells deploy countermeasures that increase the chance of survival of every cell. Our phenotypes capture the two main features of the tumor's efforts to avoid immune destruction, crypticity against immune cells for the selfish cells, and tumor-induced immunosuppression for the cooperative cells. We identify steady states of the system and show that only homogeneous tumors can be stable in both size and composition. We show that under generic parameter values, a tumor of selfish cells is more benign than a tumor of cooperative cells, and that a treatment against cancer crypticity may promote immunosuppression and increase cancer growth.
Original languageEnglish
PublisherMaastricht University, Graduate School of Business and Economics
Publication statusPublished - 21 Nov 2017

Keywords

  • Cancer heterogeneity
  • cancer ecology and evolution
  • immunoediting
  • Immunotherapy
  • immunosuppression

Cite this

Bayer, P., Brown, J., & Stankova, K. (2017). A Two-Phenotype Model of Immune Evasion by Cancer Cells. Maastricht University, Graduate School of Business and Economics.
Bayer, Péter ; Brown, Joel ; Stankova, Katerina. / A Two-Phenotype Model of Immune Evasion by Cancer Cells. Maastricht University, Graduate School of Business and Economics, 2017.
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Bayer, P, Brown, J & Stankova, K 2017 'A Two-Phenotype Model of Immune Evasion by Cancer Cells' Maastricht University, Graduate School of Business and Economics.

A Two-Phenotype Model of Immune Evasion by Cancer Cells. / Bayer, Péter; Brown, Joel; Stankova, Katerina.

Maastricht University, Graduate School of Business and Economics, 2017.

Research output: Working paperProfessional

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AU - Stankova, Katerina

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N2 - We propose a model with two types of cancer cells differentiated by their defense mechanisms against the immune system. ``Selfish'' cancer cells develop defense mechanisms that benefit the individual cell, whereas ``cooperative'' cells deploy countermeasures that increase the chance of survival of every cell. Our phenotypes capture the two main features of the tumor's efforts to avoid immune destruction, crypticity against immune cells for the selfish cells, and tumor-induced immunosuppression for the cooperative cells. We identify steady states of the system and show that only homogeneous tumors can be stable in both size and composition. We show that under generic parameter values, a tumor of selfish cells is more benign than a tumor of cooperative cells, and that a treatment against cancer crypticity may promote immunosuppression and increase cancer growth.

AB - We propose a model with two types of cancer cells differentiated by their defense mechanisms against the immune system. ``Selfish'' cancer cells develop defense mechanisms that benefit the individual cell, whereas ``cooperative'' cells deploy countermeasures that increase the chance of survival of every cell. Our phenotypes capture the two main features of the tumor's efforts to avoid immune destruction, crypticity against immune cells for the selfish cells, and tumor-induced immunosuppression for the cooperative cells. We identify steady states of the system and show that only homogeneous tumors can be stable in both size and composition. We show that under generic parameter values, a tumor of selfish cells is more benign than a tumor of cooperative cells, and that a treatment against cancer crypticity may promote immunosuppression and increase cancer growth.

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KW - cancer ecology and evolution

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Bayer P, Brown J, Stankova K. A Two-Phenotype Model of Immune Evasion by Cancer Cells. Maastricht University, Graduate School of Business and Economics. 2017 Nov 21.