DNA content profiles of HCT-8 cells upon <i>Giardia</i>-interaction.

Abstract

<p>The DNA of HCT-8 cells was stained with propidium iodide and analyzed by flow cytometry. The solid lined histograms represent control cells, whereas the dotted lines show profiles of cells after 24 h (A, B and C) and 36 h (D, E and F) of interaction with WB trophozoites. A and D display controls with only water added; in B and E, arginine was added to 0.4 mM; in C and F, citrulline was added to 0.4 mM. Note the histogram shifts upon parasite addition that could be completely reverted by the addition of citrulline.</p