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Measuring Deformability and Red Cell Heterogeneity in Blood by Ektacytometry
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Microsphiltration: a microsphere matrix to explore erythrocyte deformability.

Catherine Lavazec1, Guillaume Deplaine, Innocent Safeukui

  • 1Unité d'Immunologie Moléculaire des Parasites, Institut Pasteur, Paris, France. clavazec@pasteur.fr

Methods in Molecular Biology (Clifton, N.J.)
|September 20, 2012
PubMed
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Altered red blood cell deformability in malaria impacts disease severity. A new microsphiltration method effectively measures this change, aiding in understanding parasite-host interactions and developing targeted therapies.

Area of Science:

  • Biophysics
  • Parasitology
  • Hematology

Background:

  • Altered erythrocyte deformability is crucial in malaria pathogenesis, affecting hemodynamics and splenic retention.
  • Plasmodium falciparum infection and parasite factors modify erythrocyte mechanical properties.

Purpose of the Study:

  • To develop and validate a novel method for assessing erythrocyte deformability changes during Plasmodium falciparum infection.
  • To correlate microsphiltration results with splenic retention and enable molecular analysis of distinct erythrocyte subpopulations.

Main Methods:

  • Developed microsphiltration, a technique using metal microspheres to simulate splenic slits for erythrocyte filtration.
  • Measured retention rates of infected erythrocytes through microsphere mixtures.
  • Correlated microsphiltration retention with parasite development and splenic retention.

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Last Updated: May 18, 2026

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09:12

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Published on: January 12, 2018

A Microfluidic Technique to Probe Cell Deformability
09:47

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Published on: September 3, 2014

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Main Results:

  • Microsphiltration effectively differentiates erythrocyte mechanical phenotypes based on retention rates.
  • Observed a progressive decrease in erythrocyte deformability correlating with parasite maturation.
  • Demonstrated correlation between microsphiltration retention and in vivo splenic retention.

Conclusions:

  • Microsphiltration is a valuable tool for quantifying altered erythrocyte deformability in malaria.
  • This method facilitates molecular investigation of parasite-host interactions impacting malaria pathogenesis.
  • Understanding mechanical changes in infected erythrocytes can inform new therapeutic strategies.