Journal
CELL BIOLOGY INTERNATIONAL
Volume 28, Issue 4, Pages 243-248Publisher
WILEY
DOI: 10.1016/j.cellbi.2004.01.005
Keywords
Entamoeba histolytica; erythrophagocytosis; protein tyrosine kinase; protein kinase C; phosphoinositide 3-kinase
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Erythrophagocytic capacity of trophozoites of Entamoeba histolytica is considered a factor in the virulence of this pathogenic protozoan. We present evidence showing that such activity resembles the ingestion of microorganisms by highly differentiated phagocytic cells, Such as macrophages. Previous treatment of the trophozoites with genistein or tyrphostin, inhibitors of tyrosine protein kinases, With staurosporine,a protein kinase C inhibitor, and wortmannin, a fungal metabolite that inhibits phosphoinositide 3-OH kinase, significantly inhibited their erythrophagocytic capacity. (C) 2004 Elsevier Ltd. All rights reserved.
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