TABLE 1.

Ingestion of healthy Jurkat cells and Jurkat cells killed with actinomycin D

Jurkat cells	% of E. histolytica trophozoites with ingested Jurkat cellsb	No. of Jurkat cells ingested/positive trophozoitec	Phagocytic indexd
Healthy	30 ± 9	1.3 ± 0.1	39 ± 11
Apoptotic	62 ± 7	2.3 ± 0.3	142 ± 30

^aPhagocytosis was determined by confocal microscopy to count the number of ingested Jurkat cells per trophozoite. Three slides per condition and 100 trophozoites per slide were evaluated. Data are reported as means and SDs. P values were determined by a two-tailed t test for healthy and apoptotic cells.

^bP = 0.008.

^cP = 0.003.

^dP = 0.005.