Modeling cell proliferation in human acute myeloid leukemia xenografts

Marco Nobile, Thalia Vlachou, Simone Spolaor, Daniela Bossi, Paolo Cazzaniga, Luisa Lanfrancone, Giancarlo Mauri, Pier Giuseppe Pelicci (Corresponding author), Daniela Besozzi (Corresponding author)

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Abstract

Motivation
Acute myeloid leukemia (AML) is one of the most common hematological malignancies, characterized by high relapse and mortality rates. The inherent intra-tumor heterogeneity in AML is thought to play an important role in disease recurrence and resistance to chemotherapy. Although experimental protocols for cell proliferation studies are well established and widespread, they are not easily applicable to in vivo contexts, and the analysis of related time-series data is often complex to achieve. To overcome these limitations, model-driven approaches can be exploited to investigate different aspects of cell population dynamics.

Results
In this work, we present ProCell, a novel modeling and simulation framework to investigate cell proliferation dynamics that, differently from other approaches, takes into account the inherent stochasticity of cell division events. We apply ProCell to compare different models of cell proliferation in AML, notably leveraging experimental data derived from human xenografts in mice. ProCell is coupled with Fuzzy Self-Tuning Particle Swarm Optimization, a swarm-intelligence settings-free algorithm used to automatically infer the models parameterizations. Our results provide new insights on the intricate organization of AML cells with highly heterogeneous proliferative potential, highlighting the important role played by quiescent cells and proliferating cells characterized by different rates of division in the progression and evolution of the disease, thus hinting at the necessity to further characterize tumor cell subpopulations.
Original languageEnglish
Article numberbtz063
Pages (from-to)3378-3386
Number of pages9
JournalBioinformatics
Volume35
Issue number18
DOIs
Publication statusPublished - 15 Sep 2019
Externally publishedYes

Keywords

  • acute myeloid leykemia
  • cell proliferation
  • flow cytometry
  • modeling
  • stochastic simulation
  • global optimization
  • fuzzy self-tuning pso

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