Quantifying the biophysical characteristics of Plasmodium-falciparum- parasitized red blood cells in microcirculation
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Fedosov-2011-Jan-Quantifying the biop.pdf
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Author(s)
Fedosov, Dmitry A.
Caswell, Bruce
Suresh, Subra
Karniadakis, George E.
Date Issued
January 2011
Journal
Proceedings of the National Academy of Sciences of the United States of America
Publisher
National Academy of Sciences (U.S.)
Citation
Fedosov, D. A. et al. “Quantifying the biophysical characteristics of Plasmodium-falciparum-parasitized red blood cells in microcirculation.” Proceedings of the National Academy of Sciences 108 (2010): 35-39. ©2011 by the National Academy of Sciences.
Version
Final published version
Abstract
The pathogenicity of Plasmodium falciparum (Pf) malaria results from the stiffening of red blood cells (RBCs) and its ability to adhere to endothelial cells (cytoadherence). The dynamics of Pf-parasitized RBCs is studied by three-dimensional mesoscopic simulations of flow in cylindrical capillaries in order to predict the flow resistance enhancement at different parasitemia levels. In addition, the adhesive dynamics of Pf-RBCs is explored for various parameters revealing several types of cell dynamics such as firm adhesion, very slow slipping along the wall, and intermittent flipping. The parasite inside the RBC is modeled explicitly in order to capture phenomena such as “hindered tumbling” motion of the RBC and the sudden transition from firm RBC cytoadherence to flipping on the endothelial surface. These predictions are in quantitative agreement with recent experimental observations, and thus the three-dimensional modeling method presented here provides new capabilities for guiding and interpreting future in vitro and in vivo studies of malaria.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1073/pnas.1009492108
