Lymphokine-activated and natural killer cell activity in human intestinal mucosa.

The activity of natural effector (NE) cells was studied in lamina propria lymphocytes (LPL) obtained from 61 histologically normal specimens of human intestine, which included 45 resected for colon carcinoma and 16 resected for nonmalignant conditions. The mean spontaneous natural killer (NK) cell activity in LPL (1.7 X 10(2) cytotoxic units (C.U.)/10(5… (More)