Mini-column for cytoadherence: a new method for measuring the relative size of binding subpopulations in Plasmodium falciparum isolates
Iranian Journal of Parasitology. 2011; 6 (4): 8-16
in English
| IMEMR
| ID: emr-122889
ABSTRACT
Cytoadherence of Plasmodium falciparum- infected red blood cells to endothelial cells is an important mechanism for parasite survival and a major trigger for diseases pathology. Here, we describe a new adhesion assay in which different cell types [CHO, CHO/CD36 and CHO/ICAM-1] are attached to Cytodex beads in a mini-column format to measure the relative sizes of various binding subpopulations as a percentage of the total population. Relative size of CD36 and ICAM-1-binding subpopulations of erythrocytes infected with P. falciparum were measured by amount of parasitemia before and after passing the infected erythrocytes through a particular column. The mini-column adhesion assay was a suitable method as parasitemia always reduced after passing through a particular column in independent experiments. For example, in a typical experiment using P. falciparum ITG line, 75% of the parasites are retained on a CHO/ICAM-1 while 0% of clone 3D7 is retained. This work introduced and validated a method for measuring the relative size of parasite binding subpopulations and the selection of them. Also, the mini-column method is of value for assessments of cytoadherence and can be used as tool for different applications
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Index:
IMEMR (Eastern Mediterranean)
Main subject:
Cell Adhesion
/
Protozoan Proteins
/
CHO Cells
Language:
English
Journal:
Iran. J. Parasitol.
Year:
2011
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