the spontaneous cytotoxicity or natural killer ( nk ) cell activity , evaluated against the erythroleukemia k-562 and the colon cancer caco-2 and ht-29 cell lines , of total mononuclear cells and enriched lymphocytes was depressed in crohn 's disease and ulcerative colitis patients compared to the controls .
C0023440
erythroleukemia
C0024264
lymphocytes