Abstract
Orozco E., Suárez M. E. and Sánchez T. Differences in adhesion, phagocytosis and virulence of clones from Entamoeba histolytica, strain HM1: IMSS. International Journal for Parasitology 15: 655–660. Clones isolated from Entamoeba histolytica, strain HM1: IMSS were tested for adhesion, phagocytosis and virulence after subculturing in liquid medium. Other clones were isolated from a subpopulation of strain HM1: IMSS, and highly phagocytic trophozoites were eliminated by irradiation, after incorporating bromodeoxiuridine into their DNA by phagocytosis of labelled bacteria. We thus obtained several clones from strain HM1: IMSS showing a different degree of phagocytosis. Some phagocytosis-deficient clones showed impairment in red blood cell adherence, while others showed a reduced intake of particles into their cytoplasm. The degree of phagocytosis always was associated with the virulence of the clone.
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