ITGAL and leukemia: We found that NK-92MI-S7N cells possessed highest LFA-1 binding against four different leukemia lines as strongly evidenced by the ICAM-1-Fc complex binding in the LC-AA, followed by the parental NK-92MI with intermediate staining, and last by the NK-92MI-S with least active ICAM-1-Fc complex binding on their surface (Figure 6B).