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Experimental and Mathematical-Modeling Characterization of Trypanosoma cruzi Epimastigote Motility

Author

Listed:
  • Eduardo Sosa-Hernández
  • Gilberto Ballesteros-Rodea
  • Jorge A Arias-del-Angel
  • Diego Dévora-Canales
  • Rebeca G Manning-Cela
  • Jesús Santana-Solano
  • Moisés Santillán

Abstract

The present work is aimed at characterizing the motility of parasite T. cruzi in its epimastigote form. To that end, we recorded the trajectories of two strains of this parasite (a wild-type strain and a stable transfected strain, which contains an ectopic copy of LYT1 gene and whose motility is known to be affected). We further extracted parasite trajectories from the recorded videos, and statistically analysed the following trajectory-step features: step length, angular change of direction, longitudinal and transverse displacements with respect to the previous step, and mean square displacement. Based on the resulting observations, we developed a mathematical model to simulate parasite trajectories. The fact that the model predictions closely match most of the experimentally observed parasite-trajectory characteristics, allows us to conclude that the model is an accurate description of T. cruzi motility.

Suggested Citation

  • Eduardo Sosa-Hernández & Gilberto Ballesteros-Rodea & Jorge A Arias-del-Angel & Diego Dévora-Canales & Rebeca G Manning-Cela & Jesús Santana-Solano & Moisés Santillán, 2015. "Experimental and Mathematical-Modeling Characterization of Trypanosoma cruzi Epimastigote Motility," PLOS ONE, Public Library of Science, vol. 10(11), pages 1-17, November.
    • Handle: RePEc:plo:pone00:0142478
    DOI: 10.1371/journal.pone.0142478
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