Fig. 1.

iNKT cell lines exert direct cytotoxic activities against colon cancer cell lines. (A) Experimental design. (B) Effector : target (E : T) ratio curve graphs comparing the killing efficiency of intestinal and circulating iNKT cells (pooled donors) with NK‐92 and peripheral blood natural killer (NK) cells. Two‐way ANOVA tests were used to assess statistical significance and Tukey tests for multiple comparisons. Data are means ± SD of at least 3 independent experiments for iNKT and NK‐92 cell experiments. ns. nonsignificant, P‐value < 0.05 (*), 0.01 (**), 0.001 (***), 0.0001 (****).