A mathematical perspective on the paradox that chemotherapy sometimes works backwards

Fuente: arXiv
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Autores principales: Fernández, Luis A., Lasheras, Isabel, Pola, Cecilia
Formato: Preprint
Publicado: 2025
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author Fernández, Luis A.
Lasheras, Isabel
Pola, Cecilia
author_facet Fernández, Luis A.
Lasheras, Isabel
Pola, Cecilia
contents Doctors are well aware that sometimes cancer treatments not only fail, but even work backwards, i.e. they make the treated tumor grow. In this work we present a mathematical perspective on this paradox in the case of chemotherapy, by studying a minimally parameterized mathematical model for the system composed of the tumor and the surrounding vasculature. To this end, we will use a system of two well-established nonlinear ordinary differential equations, which incorporates the cytotoxic (via the Norton-Simon hypothesis) and antiangiogenic effects of chemotherapy. Finally, we provide two theoretical ways to avoid these anomalies.
format Preprint
id arxiv_https___arxiv_org_abs_2503_10670
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A mathematical perspective on the paradox that chemotherapy sometimes works backwards
Fernández, Luis A.
Lasheras, Isabel
Pola, Cecilia
Tissues and Organs
Dynamical Systems
34A34, 34D05, 37N25, 92C50
Doctors are well aware that sometimes cancer treatments not only fail, but even work backwards, i.e. they make the treated tumor grow. In this work we present a mathematical perspective on this paradox in the case of chemotherapy, by studying a minimally parameterized mathematical model for the system composed of the tumor and the surrounding vasculature. To this end, we will use a system of two well-established nonlinear ordinary differential equations, which incorporates the cytotoxic (via the Norton-Simon hypothesis) and antiangiogenic effects of chemotherapy. Finally, we provide two theoretical ways to avoid these anomalies.
title A mathematical perspective on the paradox that chemotherapy sometimes works backwards
topic Tissues and Organs
Dynamical Systems
34A34, 34D05, 37N25, 92C50
url https://arxiv.org/abs/2503.10670